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1

RivDIS Project Page  

NLE Websites -- All DOE Office Websites (Extended Search)

River Discharge (RivDis) River Discharge (RivDis) The Global River Discharge (RivDIS) Project Overview The Global River Discharge (RivDIS) data set contains monthly discharge measurements for 1018 stations located throughout the world. The period of record varies widely from station to station, with a mean of 21.5 years. These data were digitized from published UNESCO archives by Charles Voromarty, Balaze Fekete, and B.A. Tucker of the Complex Systems Research Center (CSRC) at the University of New Hampshire. River discharge is typically measured through the use of a rating curve that relates local water level height to discharge. This rating curve is used to estimate discharge from the observed water level. The rating curves are periodically rechecked and recalibrated through on-site measurement of

2

Conditions on (dis)harmony  

E-Print Network (OSTI)

(cont.) Chapter 4 turns to microvariation within the (dis)harmony system of a single language, examining transparency variation in Hungarian front vowels, and distance-based variation in Hungarian neutral vowel sequences, ...

Nevins, Andrew

2005-01-01T23:59:59.000Z

3

Assessment of Distributed Resources: A Case Study for Tri-State Generation and Transmission Association, Inc.  

Science Conference Proceedings (OSTI)

During the process of upgrading service for three distribution customers, Tri-State Generation and Transmission Association (Tri-State) evaluated various distributed generation (DIS-GEN) options. Candidate DIS-GEN systems competitive with other options could become the basis for customer upgrade solutions.

1997-12-05T23:59:59.000Z

4

Nuclear correction factors from neutrino DIS  

E-Print Network (OSTI)

Neutrino Deep Inelastic Scattering on nuclei is an essential process to constrain the strange quark parton distribution functions in the proton. The critical component on the way to using the neutrino DIS data in a proton PDF analysis is understanding the nuclear effects in parton distribution functions. We parametrize these effects by nuclear parton distribution functions and we use this framework to analyze the consistency of neutrino DIS data with other nuclear data.

K. Kovarik

2011-07-15T23:59:59.000Z

5

Nuclear correction factors from neutrino DIS  

E-Print Network (OSTI)

Neutrino Deep Inelastic Scattering on nuclei is an essential process to constrain the strange quark parton distribution functions in the proton. The critical component on the way to using the neutrino DIS data in a proton PDF analysis is understanding the nuclear effects in parton distribution functions. We parametrize these effects by nuclear parton distribution functions and we use this framework to analyze the consistency of neutrino DIS data with other nuclear data.

Kovarik, K

2011-01-01T23:59:59.000Z

6

Directory of RivDIS data  

NLE Websites -- All DOE Office Websites (Extended Search)

Directory of RivDIS data Directory of RivDIS data The data consists of tabular data files, html summary tables, and gif images. The images summarize all existing data except for Discharge vs Year, which shows only 1960 - 1990. This index is organized by Country, River, and Station. Clicking on a letter link scrolls you to a country beginning with that letter. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z The most recent update at 10:57:50 on 12/29/1999 included 1018 stations out of the total 1018 stations. See also the README file and the RivDIS Online Home Page for further information. Albania A B C D E F G H I J K L M N O P Q R S T U V W X Y Z (Devolli River) Kokel: Data Summary and Plots (Drini River) Kalimash: Data Summary and Plots (Drini i Zi River) Ura e Dodes: Data

7

ELE TRI AL A LE TESTING Y PULSE ARRESTED SPARK DIS HARGE (PASD)  

Nuclear power Oil and gas TE HNOLOGI AL ... The pulse energy is insufficient to damage insulation or the conductors within wiring systems.

8

Tri-Lab Resources  

NLE Websites -- All DOE Office Websites (Extended Search)

Tri-Lab Resources Tri-Lab Resources Tri-Lab Computing Resources Computing resources available to Alliance users as of January 2012. Computing resources available Los Alamos Moonlight - 294 compute nodes, 4,704 cores, 488 TF system. Dual 8-core Intel Xeon (Sandy Bridge) processors with two NVIDIA Tesla GPUs per node, w/ InfiniBand. Mustang - 1,600 compute nodes, 38,400 cores, 353 TF system. 24-core AMD Opteron w/ InfiniBand. Mapache - 592 compute nodes, 4,736 cores, 50.4 TF system. SGI XE1300 dual-socket, quad-core Intel Nehalem processors w/ InfiniBand. Pinto - 154 compute nodes, 2,464 cores, 51.3 TF system. Dual 8-core Intel Xeon (Sandy Bridge) processors w/ Infiniband. Lawrence Livermore Cab - 1,296 nodes, 20,736 cores, 333-TF system. Dual 8-core Intel Xeon (Sandy Bridge) processors w/ InfiniBand. Additional information at Cab

9

CAREERS & the disABLED Magazine's Career Expo for People with...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CAREERS & the disABLED Magazine's Career Expo for People with Disabilities CAREERS & the disABLED Magazine's Career Expo for People with Disabilities November 22, 2013 8:00AM EST...

10

Brian Foster -DIS01 -Bologna HERA II Physics  

E-Print Network (OSTI)

V2 Q2 = 200 GeV2 Q2 = 2000 GeV2 #12;Brian Foster - DIS01 - Bologna 8 Active Filter Calorimeter ZEUS 6 systematics plus precision electron tagger. "Standard" Pb/scintillator calorimeter plus "active filter" of aerogel. Dipole spectrometer to measure converting e+e- pairs. "6m tagger" W/fibre to measure the energy

11

IGBP-DIS Global Primary Production Data Initiative  

NLE Websites -- All DOE Office Websites (Extended Search)

IGBP-DIS Global Primary Production Data Initiative IGBP-DIS Global Primary Production Data Initiative The GPPDI Workshop was held in Cincinnati, U.S.A., December 1996 (Olson et al., 1997). Summary (September 1996) by Dick Olson and Steve Prince from Global Change Newsletter No. 27; International Geosphere-Biosphere Programme: A Study of Global Change (IGBP) of the International Council of Scientific Unions Global modelling and monitoring of net primary production (NPP) is being given high priority in IGBP owing to increasing concern over issues such as the consequences of perturbations in the carbon cycle, the impacts of global land-use change, global climate change, and global food security. Significant advances have been made in process modelling and in the use of remote sensing to monitor global vegetation. The advances in modelling and remote sensing of NPP have highlighted the lack of readily available, reliable information from field studies with which to parameterise and validate the models. The Global Primary Production Data Initiative (GPPDI) is intended to remedy this problem by identifying existing field data sets of primary production and associated environmental data. The programme is using data sets for representative sites, and extrapolating or regionalising the better data sets to grid cells sizes of up to 0.5º x 0.5º. Emphasis is on variables needed to parameterise and validate primary production models, including above and below ground NPP, standing crop, LAI, climate data, site data and landscape variability.

12

Production of spin-3 mesons in diffractive DIS  

E-Print Network (OSTI)

We calculate the amplitudes of J^{PC}=3^{--} meson production in diffractive DIS within the k_t-factorization approach, with a particular attention paid to the rho_3(1690) meson. We find that at all Q^2 the rho_3(1690) production cross section is 2-5 times smaller than the rho(1700) production cross section, which is assumed to be a pure D-wave state. Studying sigma_L and sigma_T separately, we observe domination of rho_3 in sigma_L and domination of rho(1700) in sigma_T and offer an explanation of this behavior in simple terms. We also find very strong contributions -- sometimes even domination -- of the s-channel helicity violating amplitudes. The typical color dipole sizes probed in rho_3 production are shown to be larger than those in the ground state rho production, and the energy dependence of rho_3 cross section turns out to be much flatter than the rho production cross section. All the conclusions about the relative behavior of rho_3(1690) and rho(1700) mesons are numerically stable against variations of input parameters.

F. Caporale; I. P. Ivanov

2005-04-16T23:59:59.000Z

13

Tri State Biodiesel LLC | Open Energy Information  

Open Energy Info (EERE)

Tri State Biodiesel LLC Jump to: navigation, search Name Tri-State Biodiesel LLC Place New York, New York Zip 10009 Product A New York-based producer and retailer of biodiesel....

14

Tri-State Materials Testing Lab, LLC  

Science Conference Proceedings (OSTI)

Tri-State Materials Testing Lab, LLC. NVLAP Lab Code: 200010-0. Address and Contact Information: 160 S. Turnpike Road ...

2013-11-08T23:59:59.000Z

15

Toxics Release Inventory (TRI) 1987--1996  

SciTech Connect

The Toxics Release Inventory (TRI), published annually by the US EPA, is a valuable source of information about over 300 toxic chemicals that are being used, manufactured, treated, transported, or released into the environment. Using this information, citizens, businesses, and governments can work together to protect the quality of their land, air and water. The new software used in the 1987--1996 TRI CD-ROM, is flexible and powerful, capable of searching over 200 fields (e.g., by chemical, company, kind of release, or zip code, and across multiple years of data). The CD-ROM also allows users to conduct multiple and complex queries, which are especially useful to those who wish to analyze trends or perform statistical analysis. The following information is found on the TRI CD: facility name, location and type of business; off-site locations to which the facility transfers toxic chemicals in waste; whether the chemical is manufactured (including importation), processed, or otherwise used and the general categories of use of the chemical; an estimate (in ranges) of the maximum amounts of the toxic chemical present at the facility at any time during the preceding year; quantity of the chemical entering each medium -- air, land, and water -- annually; waste treatment/disposal methods and efficiency of methods for each waste stream; and optional information on waste minimization. In addition to the TRI data, the CD-ROM provides a wealth of other TRI information, such as: tutorial, Annual TRI Data Release Book, State Fact Sheets; TRI`s reporting Forms R and A; and Chemical Fact Sheets on many of the TRI chemicals. The 1987--1996 TRI CD-ROM is a user-friendly Windows application that includes LANDVIEW III, a geographic information systems (GIS) package. The GIS package allows the user to locate TRI facilities and other EPA sites in relation to roads, rivers, schools, hospitals and more.

NONE

1999-10-01T23:59:59.000Z

16

DisQo: a user needs analysis method for smart home  

Science Conference Proceedings (OSTI)

How can people identify the services that they might expect from their smart home when they have little to no knowledge about novel technologies? This paper reports on a user needs analysis method designed to answer this question: DisQo. We have recruited ... Keywords: end-user composition, service-oriented computing, smart artifacts coupling, smart home, ubiquitous computing

Jolle Coutaz; Emeric Fontaine; Nadine Mandran; Alexandre Demeure

2010-10-01T23:59:59.000Z

17

Tri-Generation Success Story: World's First Tri-Gen Energy Station - Fountain Valley  

NLE Websites -- All DOE Office Websites (Extended Search)

Tri-Generation Success Tri-Generation Success Story World's First Tri-Gen Energy Station- Fountain Valley The Fountain Valley energy station, supported in part by a $2.2 million grant from the Energy Department, is the world's first tri-generation hydrogen energy and electrical power station to provide transportation fuel to the public and electric power to an industrial facility. Located at the Orange County Sanitation District's wastewater treatment plant in Fountain Valley, California, the unit is a combined heat, hydrogen, and power (CHHP) system that co-produces hydrogen in addition to electricity and heat, making it a tri-generation system. The hydrogen produced by the system

18

Tri Cities Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Tri Cities Biomass Facility Tri Cities Biomass Facility Jump to: navigation, search Name Tri Cities Biomass Facility Facility Tri Cities Sector Biomass Facility Type Landfill Gas Location Maricopa County, Arizona Coordinates 33.2917968°, -112.4291464° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.2917968,"lon":-112.4291464,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

19

Tri-State Demand Response Framework  

Science Conference Proceedings (OSTI)

This report provides the results of a demand response framework development project of Tri-State Generation and Transmission, a wholesale provider to a number of rural electric associations in the Rocky Mountain west. Tri-State has developed an assortment of planned demand response and energy shaping products and services designed to both shave peak and shift consumption to off-peak hours. The applications, networks, and devices that will be needed to support these needs will involve many ...

2013-03-28T23:59:59.000Z

20

TriWo AG | Open Energy Information  

Open Energy Info (EERE)

TriWo AG TriWo AG Jump to: navigation, search Name TriWo AG Place Trier, Denmark Zip 54290 Sector Solar Product Developer of solar photovoltaic electricity generation project in Germany. Coordinates 49.757256°, 6.636521° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":49.757256,"lon":6.636521,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Target Fragmentation in Semi-Inclusive DIS: Fracture Functions, Cut Vertices and the OPE  

E-Print Network (OSTI)

We discuss semi-inclusive Deep Inelastic Scattering (DIS) in the z -> 1 limit, in particular the relationship between fracture functions, generalised cut vertices and Green functions of the composite operators arising in the OPE. The implications, in the spin-polarised case, for testing whether the "proton spin" effect is target-independent are explored. Explicit calculations in (phi^3)_6 theory are presented which are consistent with our observations.

M. Grazzini; G. M. Shore; B. E. White

1999-03-30T23:59:59.000Z

22

Using 1-Jettiness to Measure 2 Jets in DIS 3 Ways  

E-Print Network (OSTI)

We predict cross sections in deep inelastic scattering (DIS) for the production of two jets---one along the proton beam direction created by initial state radiation (ISR) and another created by final state radiation after the hard collision. Our results include fixed order corrections and a summation of large logarithms up to next-to-next-to-leading logarithmic (NNLL) accuracy in resummed perturbation theory. We make predictions for three versions of a DIS event shape 1-jettiness, each of which constrains hadronic final states to be well collimated into two jets along the beam and final-state jet directions, but which differ in their sensitivity to the transverse momentum of the ISR from the proton beam. We use the tools of soft collinear effective theory (SCET) to derive factorization theorems for these three versions of 1-jettiness. The sensitivity to the ISR gives rise to significantly different structures in the corresponding factorization theorems---for example, dependence on either the ordinary or the generalized kperp-dependent beam function. Despite the differences among 1-jettiness definitions, we show that the leading nonperturbative correction that shifts the tail region of their distributions is given by a single universal nonperturbative parameter Omega1, even accounting for hadron mass effects. Finally, we give numerical results for Q^2 and x values explored at the HERA collider, emphasizing that the target of our factorization-based analyses is to open the door for higher-precision jet phenomenology in DIS.

Daekyoung Kang; Christopher Lee; Iain W. Stewart

2013-03-27T23:59:59.000Z

23

From DIS to proton-nucleus collisions in the Color Glass Condensate model  

E-Print Network (OSTI)

We show that particle production in proton-nucleus (pA) collisions in the Color Glass Condensate model can be related to Deep Inelastic Scattering of leptons on protons/nuclei (DIS). The common building block is the quark antiquark (or gluon-gluon) dipole cross section which is present in both DIS and pA processes. This correspondence in a sense generalizes the standard leading twist approach to pA collisions based on collinear factorization and perturbative QCD, and allows one to express the pA cross sections in terms of a universal quantity (dipole cross section) which, in principle, can be measured in DIS or other processes. Therefore, using the parameterization of dipole cross section at HERA, one can calculate particle production cross sections in proton-nucleus collisions at high energies. Alternatively, one could use proton-nucleus experiments to further constrain models of the dipole cross-section. We show that the McLerran-Venugopalan model predicts enhancement of cross sections at large p_t (Cronin effect) and suppression of cross sections at low p_t. The cross over depends on rapidity and moves to higher p_t as one goes to more forward rapidities.

F. Gelis; J. Jalilian-Marian

2002-11-22T23:59:59.000Z

24

Renewal theory in analysis of tries and strings  

E-Print Network (OSTI)

We give a survey of a number of simple applications of renewal theory to problems on random strings and tries: insertion depth, size, insertion mode and imbalance of tries; variations for b-tries and Patricia tries; Khodak and Tunstall codes.

Janson, Svante

2009-01-01T23:59:59.000Z

25

Microsoft Word - TriCity20020828.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Wednesday, August 28, 2002 Wednesday, August 28, 2002 Department of Energy Awards $600,000 to Tri-City Industrial Development Council Community Reuse Organization WASHINGTON, D.C. - The Department of Energy (DOE) has awarded $600,000 in the form of competitive grants to the Tri-City Industrial Development Council (TRIDEC). TRIDEC is the community reuse organization (CRO) for the department's Hanford site. "The Energy Department is a good neighbor to the communities surrounding our sites," Secretary of Energy Spencer Abraham said. "We will continue to work with TRIDEC and other community reuse organizations around the country, to retain, expand or create jobs for workers affected by restructuring efforts." TRIDEC applied for funding from the department's Office of Worker and Community Transition

26

Tri Power Systems Inc | Open Energy Information  

Open Energy Info (EERE)

Inc Inc Jump to: navigation, search Logo: Tri Power Systems Inc Name Tri Power Systems Inc Address P.O. Box 1450 Place Idaho Springs, Colorado Zip 80452 Sector Solar Product Design and installation of solar and wind systems for residential and small business Website http://www.tripowersystems.com Coordinates 39.6904464°, -105.6412527° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.6904464,"lon":-105.6412527,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

27

Polarized deeply inelastic scattering (DIS) structure functions for nucleons and nuclei  

Science Conference Proceedings (OSTI)

We extract parton distribution functions (PDFs) and structure functions from recent experimental data of polarized lepton-deeply inelastic scattering (DIS) on nucleons at next-to-leading order (NLO) quantum chromodynamics. We apply the Jacobi polynomial method to the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution as this is numerically efficient. Having determined the polarized proton and neutron spin structure, we extend this analysis to describe {sup 3}He and {sup 3}H polarized structure functions, as well as various sum rules. We compare our results with other analyses from the literature.

Khorramian, Ali N.; Taheri Monfared, S. [Physics Department, Semnan University, Semnan (Iran, Islamic Republic of); School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Atashbar Tehrani, S. [School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Arbabifar, F. [Physics Department, Semnan University, Semnan (Iran, Islamic Republic of); Olness, F. I. [Department of Physics, Southern Methodist University, Dallas, Texas 75275-0175 (United States)

2011-03-01T23:59:59.000Z

28

DisClose: Discovering Colossal Closed Itemsets via a Memory Efficient Compact Row-Tree  

SciTech Connect

Itemset mining has recently focused on discovery of frequent itemsets from high-dimensional datasets with relatively few rows and a larger number of items. With exponentially in-creasing running time as average row length increases, mining such datasets renders most conventional algorithms impracti-cal. Unfortunately, large cardinality closed itemsets are likely to be more informative than small cardinality closed itemsets in this type of dataset. This paper proposes an approach, called DisClose, to extract large cardinality (colossal) closed itemsets from high-dimensional datasets. The approach relies on a memory-efficient Compact Row-Tree data structure to represent itemsets during the search process. The search strategy explores the transposed representation of the dataset. Large cardinality itemsets are enumerated first followed by smaller ones. In addition, we utilize a minimum cardinality threshold to further reduce the search space. Experimental result shows that DisClose can complete the extraction of colossal closed itemsets in the considered dataset, even for low support thresholds. The algorithm immediately discovers closed itemsets without needing to check if each new closed itemset has previously been found.

Zulkurnain, Nurul F.; Keane, John A.; Haglin, David J.

2013-02-01T23:59:59.000Z

29

Using Distributed Tri-generation Systems for Neighborhood Hydrogen Refueling  

E-Print Network (OSTI)

Using Distributed Tri-generation Systems for Neighborhood Hydrogen Refueling Xuping Li and Joan: Xuping Li (Xupli@ucdavis.edu), Joan Ogden (jmogden@ucdavis.edu) INTRODUCTION TRI-GENERATION SYSTEM AND NEIGHBORHOOD REFUELING DESCRIPTION METHODS AND DATA CONCLUSIONS An engineering/economic model for H2 tri-generation

California at Davis, University of

30

Comparison of NNLO DIS scheme splitting functions with results from exact gluon kinematics at small x.  

E-Print Network (OSTI)

result such that the complete non-singlet coefficient is negative at small x. However, it is not divergent as x? 0 so that convolution with a suitable non-singlet test function 7 05000 10000 10 -5 10 -4 10 -3 10 -2 10 -1 1 x P +(2) ns 0 5000 10000 15000... -5 10 -4 10 -3 10 -2 10 -1 1 x x P(2)gg -20000 -10000 0 10000 10 -5 10 -4 10 -3 10 -2 10 -1 1 x x P(2)qg -10000 -5000 0 10 -5 10 -4 10 -3 10 -2 10 -1 1 x x P(2)gq Figure 3: The singlet splitting functions in the DIS (solid) and MS schemes (dashed...

White, C D; Thorne, Robert S

31

Quark helicity flip and the transverse spin dependence of inclusive DIS  

SciTech Connect

Inclusive DIS with unpolarized beam exhibits a subtle dependence on the transverse target spin, arising from the interference of one-photon and two-photon exchange amplitudes in the cross section. We argue that this observable probes mainly the quark helicity-flip amplitudes induced by the non-perturbative vacuum structure of QCD (spontaneous chiral symmetry breaking). This conjecture is based on (a) the absence of significant Sudakov suppression of the helicity-flip process if soft gluon emission in the quark subprocess is limited by the chiral symmetry breaking scale mu^2_{chiral} >> Lambda^2_{QCD}; (b) the expectation that the quark helicity-conserving twist-3 contribution is small. The normal target spin asymmetry is estimated to be of the order 10^{-4} in the kinematics of the planned Jefferson Lab Hall A experiment.

Andrei Afanasev; Mark Strikman; Christian Weiss

2007-05-21T23:59:59.000Z

32

Abstract Microgrids are a new concept for future energy dis-tribution systems that enable renewable energy integration and  

E-Print Network (OSTI)

1 Abstract ­ Microgrids are a new concept for future energy dis- tribution systems that enable renewable energy integration and improved energy management capability. Microgrids consist of multiple power quality and power distribution reliability, microgrids need to operate in both grid

Collins, Emmanuel

33

Tri Global Energy LLC | Open Energy Information  

Open Energy Info (EERE)

Global Energy LLC Global Energy LLC Jump to: navigation, search Name Tri Global Energy LLC Place Dallas, Texas Zip 75248 Sector Services, Solar, Wind energy Product Texas-based developer that offers a full range of services in planning, design, project financing, and construction for solar and large community-based wind projects. Coordinates 32.778155°, -96.795404° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.778155,"lon":-96.795404,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

34

PNNL: EDO - Tri-Cities Tech Business Update  

NLE Websites -- All DOE Office Websites (Extended Search)

Tri-Cities Tech Business Update Tri-Cities Tech Business Update This monthly e-mailed update contains news, opportunities, upcoming events, and other information about Mid-Columbia tech businesses and the organizations that support them. Browse the archives for back issues. Printer Friendly Version January 2014 Issue Startups Move Ahead Businesses that were launched at the first-ever Tri-Cities Startup Weekend in September are moving ahead. more... Books by Local Authors Two recent books by Tri-Cities authors provide insights about technology marketing and economic development, respectively. more... Port of Pasco Appointments Gary Ballew joined the Port of Pasco as the director of economic development and marketing on December 16. more... Tri-City Chamber Appointment The Tri-City Regional Chamber of Commerce has hired Austin Neilson as its

35

See Behind the Numbers at WSU Tri-Cities  

Science Conference Proceedings (OSTI)

The enrollment numbers for WSU were released this week. The enrollment at the Tri-Cities campus remained flat, but these numbers do not tell the full story of WSU Tri-Cities and the many things we have to celebrate about our local campus. WSU Tri-Cities has gone through significant growth and change over the past several years and has fostered closer ties to its alumni, the community, region and state.

Fisher, Brad; Kluse, Michael; Novich, Carolynn M.

2011-09-18T23:59:59.000Z

36

Tri-Cities Index of Innovation and Technology  

SciTech Connect

In 2001 and 2004, the Economic Development Office of Pacific Northwest National Laboratory published companion reports to the Washington Technology Center Index studies that provided additional information on the Tri-Cities (Kennewick-Richland-Pasco) area of the state, its technology businesses, and important advantages that the Tri-Cities have as places to live and do business. These reports also compared the Tri-Cities area to other technology-based metropolitan areas in the Pacific Northwest and nation along critical dimensions known to be important to technology firms. This report updates the material in these earlier reports, and highlights a growing Tri-Cities metropolitan area.

Fowler, Richard A.; Scott, Michael J.; Butner, Ryan S.

2011-01-17T23:59:59.000Z

37

The TriBeam System: Femtosecond Laser Based Serial Sectioning  

Science Conference Proceedings (OSTI)

Presentation Title, The TriBeam System: Femtosecond Laser Based Serial Sectioning ... Measurement and Quantification of Grain Boundary Evolution in Three...

38

Tri-County Electric Cooperative - Energy Efficient Water Heater...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Heating Program Information Texas Program Type Utility Rebate Program Rebate Amount 75 Tri-County Electric Cooperative offers a 75 rebate on the purchase of energy-efficient...

39

Nuclear Medicine CT Angiography  

E-Print Network (OSTI)

Nuclear Medicine CT Angiography Stress Testing Rotation The Nuclear Medicine/CT angiography. Understand the indications for exercise treadmill testing and specific nuclear cardiology tests, safe use patient and learn the importance of physical and pharmacologic stress in nuclear cardiology 3. Interpret

Ford, James

40

Transverse target spin asymmetry in inclusive DIS with two-photon exchange  

SciTech Connect

We study the transverse target spin dependence of the cross section for the inclusive electron-nucleon scattering with unpolarized beam. Such dependence is absent in the one-photon exchange approximation (Christ-Lee theorem) and arises only in higher orders of the QED expansion, from the interference of one-photon and absorptive two-photon exchange amplitudes as well as from real photon emission (bremsstrahlung). We demonstrate that the transverse spin-dependent two-photon exchange cross section is free of QED infrared and collinear divergences. We argue that in DIS kinematics the transverse spin dependence should be governed by a "parton-like" mechanism in which the two-photon exchange couples mainly to a single quark. We calculate the normal spin asymmetry in an approximation where the dominant contribution arises from quark helicity flip due to interactions with non-perturbative vacuum fields (constituent quark picture) and is proportional to the quark transversity distribution in the nucleon. Such helicity-flip processes are not significantly Sudakov-suppressed if the infrared scale for gluon emission in the photon-quark subprocess is of the order of the chiral symmetry breaking scale, mu^2_chiral>>Lambda^2_QCD. We estimate the asymmetry in the kinematics of the planned Jefferson Lab Hall A experiment to be of the order 10^-4, with different sign for proton and neutron. We also comment on the spin dependence in the limit of soft high-energy scattering.

Andrei Afanasev; Mark Strikman; Christian Weiss

2007-09-06T23:59:59.000Z

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Tri-County Electric Cooperative - Energy Efficient Water Heater Rebate  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tri-County Electric Cooperative - Energy Efficient Water Heater Tri-County Electric Cooperative - Energy Efficient Water Heater Rebate Program Tri-County Electric Cooperative - Energy Efficient Water Heater Rebate Program < Back Eligibility Commercial Residential Savings Category Appliances & Electronics Water Heating Program Info State Texas Program Type Utility Rebate Program Rebate Amount $75 Provider Tri-County Electric Cooperative Tri-County Electric Cooperative offers a $75 rebate on the purchase of energy-efficient electric water heaters. The rebate is valid for new or replacement units which have an Energy Factor Rating of 0.90 or higher. The minimum tank size is 40 gallons, with a minimum 4,500 watt heating element. For validation purposes, a copy of the sales or installation receipt must accompany the [http://www.tcectexas.com/Forms/water%20heater%20rebate%20form.pdf

42

Which LED Lighting Products Would You Consider Trying? | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Which LED Lighting Products Would You Consider Trying? Which LED Lighting Products Would You Consider Trying? Which LED Lighting Products Would You Consider Trying? August 5, 2010 - 7:30am Addthis On Monday, Chris discussed his upcoming project to replace the lighting in his kitchen and family room. Chris is considering LED (light-emitting diode) lighting, especially for his kitchen, where they can be installed under the cabinets. LEDs can also be used for other applications, including task lighting, recessed downlights, and holiday lighting. Which LED lighting products would you consider trying? Or, if you're already using LEDs, what do you think of them? Each Thursday, you have the chance to share your thoughts on a question about energy efficiency or renewable energy for consumers. Please comment with your answers, and also feel free to respond to other comments.

43

Have You Ever Tried Composting? | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ever Tried Composting? Ever Tried Composting? Have You Ever Tried Composting? January 20, 2012 - 10:07am Addthis This week, Erin talked about how she's helping her parents (and learning from them) as they maintain an outdoor compost pile. By composting, you can nourish your garden for very little cost while keeping organic garbage out of sewer systems and city dumps. Compost materials range from food scraps to worms, and you can keep your compost in an open pile outdoors or in a specialized container. Of course, composting isn't just for homes - you can also participate in composting at the office. Whether at work or at home, indoors or outdoors, worms or food scraps: Have you ever tried composting? Why or why not? E-mail your responses to the Energy Saver team at consumer.webmaster@nrel.gov.

44

Tri-State Electric Member Corp (North Carolina) | Open Energy...  

Open Energy Info (EERE)

North Carolina) Jump to: navigation, search Name Tri-State Electric Member Corp Place North Carolina Utility Id 19154 References EIA Form EIA-861 Final Data File for 2010 -...

45

Tri-State Electric Member Corp (Tennessee) | Open Energy Information  

Open Energy Info (EERE)

Tennessee) Jump to: navigation, search Name Tri-State Electric Member Corp Place Tennessee Utility Id 19154 References EIA Form EIA-861 Final Data File for 2010 - File220101...

46

TRI State Motor Transit to Resume Shipping Waste to WIPP  

NLE Websites -- All DOE Office Websites (Extended Search)

Tri-State Motor Transit to Resume Tri-State Motor Transit to Resume Shipping Transuranic Waste to WIPP CARLSBAD, N.M., January 19, 2001 - Tri-State Motor Transit will resume shipping waste to the Waste Isolation Pilot Plant (WIPP) January 22, transporting transuranic waste from the Idaho National Engineering and Environmental Laboratory (INEEL) to WIPP. This will be the first shipment by Tri-State Motor Transit (TSMT) to WIPP since the November 21 incident in which drivers hauling waste from INEEL to WIPP failed to make the turn off from I-25 onto U.S. 285, deviating from the designated transportation route by 27 miles. The New Mexico State Police noticed the route deviation and contacted the TRANSCOM Control Center (TCC) in Albuquerque to verify that the shipment was off course. The TCC confirmed the route deviation using their tracking system and notified the drivers, via

47

Tri-County Rural Elec Coop Inc | Open Energy Information  

Open Energy Info (EERE)

Tri-County Rural Elec Coop Inc Tri-County Rural Elec Coop Inc Place Pennsylvania Utility Id 40290 Utility Location Yes Ownership C NERC Location RFC NERC RFC Yes RTO PJM Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png 3 Phase Demand Commercial 3 Phase Demand Tri-county Commercial CP1 Commercial CP3 Industrial ETS2D Commercial ETS2M Commercial ETSDM Commercial ETSTC Commercial LP2 Commercial LP3 Industrial NCP1 Residential Residential Residential 2C Residential Residential 3C Residential Residential 4C Residential Residential Tri-County Residential Seasonal Budget Commercial

48

Tri-County Electric Coop, Inc (Colorado) | Open Energy Information  

Open Energy Info (EERE)

Colorado) Jump to: navigation, search Name Tri-County Electric Coop, Inc Place Colorado Utility Id 19160 References EIA Form EIA-861 Final Data File for 2010 - File220101...

49

TriEagle Energy, LLC | Open Energy Information  

Open Energy Info (EERE)

Name TriEagle Energy, LLC Place Texas Utility Id 19126 Utility Location Yes Ownership R NERC Location TRE NERC ERCOT Yes Activity Retail Marketing Yes References EIA Form...

50

Tri-County Electric Coop, Inc | Open Energy Information  

Open Energy Info (EERE)

Tri-County Electric Coop, Inc Place South Carolina Utility Id 14175 Utility Location Yes Ownership C NERC Location SERC NERC SERC Yes Activity Distribution Yes Alt Fuel Vehicle Yes...

51

Combustion: Sandwiched Between Engines and Fuel (Trying to Make...  

NLE Websites -- All DOE Office Websites (Extended Search)

Combustion: Sandwiched Between Engines and Fuel (Trying to Make Bread from Combustion) Speaker(s): Robert Dibble Date: March 10, 2010 - 12:00pm Location: 90-3122 This seminar will...

52

TRI for Power Plants RY2010 Version 1.0  

Science Conference Proceedings (OSTI)

TRI for Power Plants is a powerful, user-friendly tool for estimating, tracking, and reporting releases of chemicals45primarily trace substances45from fossil-fired steam electric plants. The spreadsheet-like tool has been applied by numerous energy companies to increase the efficiency and reduce the costs of TRI-related analyses while enhancing compliance with changing reporting requirements. The software uses a mass balance approach based on fuel input and plant configuration. Fuel inputs include coal, ...

2011-04-15T23:59:59.000Z

53

TRI for Power Plants RY2011 Version 1.0  

Science Conference Proceedings (OSTI)

TRI for Power Plants is a powerful, user-friendly tool for estimating, tracking, and reporting releases of chemicals45primarily trace substances45from fossil-fired steam electric plants. The spreadsheet-like tool has been applied by numerous energy companies to increase the efficiency and reduce the costs of TRI-related analyses while enhancing compliance with changing reporting requirements. The software uses a mass balance approach based on fuel input and plant configuration. Fuel inputs include coal, ...

2012-04-05T23:59:59.000Z

54

Reconstruction of CT Images from Parsimonious Angular ...  

E-Print Network (OSTI)

internal human organs in a non-invasive manner. Any CT scan ...... Relative reconstruction error results for CT data without measurement error types of noisy CT...

55

Tri-State Electric Member Corp | Open Energy Information  

Open Energy Info (EERE)

Tri State Electric Membership Corporation) Tri State Electric Membership Corporation) Jump to: navigation, search Name Tri-State Electric Member Corp Place McCaysville, Georgia Utility Id 19154 Utility Location Yes Ownership C NERC Location SERC NERC SERC Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] SGIC[2] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Rate 1 - Residential Residential Rate 40 - Small Commercial GSA-1 (less 50 kW) Commercial Rate 50 - Commercial GSA-2 (51-1000 kW) Commercial Rate 54 - Large Commercial GSA-3 (1001-5000 kW) Commercial Rate 57 - Seasonal Demand Commercial Rate 72 - Street Lighting Lighting

56

Hawkeye Tri-County El Coop Inc | Open Energy Information  

Open Energy Info (EERE)

Tri-County El Coop Inc Tri-County El Coop Inc Jump to: navigation, search Name Hawkeye Tri-County El Coop Inc Place Iowa Utility Id 8298 Utility Location Yes Ownership C NERC Location MRO NERC MRO Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Commercial Rate Commercial Interruptible Rate Residential Large Power Rate Commercial Outdoor Lighting Non-Metered General Lighting Peak Alert Rate Commercial Single Phase Residential Average Rates Residential: $0.1360/kWh Commercial: $0.0987/kWh Industrial: $0.0706/kWh References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a"

57

Microsoft Word - TriCityWashingtonState20020620.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tri-City Tri-City Industrial Development Council in Washington State WASHINGTON, D.C. - The Department of Energy (DOE) today announced that it will award $300,000 to the Tri-City Industrial Development Council (TRIDEC). TRIDEC's goal is to assist affected communities impacted by the ultimate closure of the Hanford facility that has served as the primary employment source for over 50 years. The grant will provide $200,000 for program administration and $100,000 for the Asset Reinvestment Program. "The Energy Department is a good neighbor to the communities surrounding our sites," Secretary of Energy Spencer Abraham said. "Working with TRIDEC and other community reuse organizations around the country, the Department has retained, expanded or created over

58

Tri-County Electric Coop, Inc (Florida) | Open Energy Information  

Open Energy Info (EERE)

Tri-County Electric Coop, Inc (Florida) Tri-County Electric Coop, Inc (Florida) Jump to: navigation, search Name Tri-County Electric Coop, Inc Place Florida Utility Id 19161 Utility Location Yes Ownership C NERC Location FRCC NERC FRCC Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Commercial General Three- Phase Service Time- Of- Day Schedule Commercial Commercial Outdoor Lighting HPS 100 W Lighting Commercial Outdoor Lighting HPS 150 W Lighting Commercial Outdoor Lighting HPS 400 W Lighting Commercial Outdoor Lighting MHF 400 W Lighting Commercial Outdoor Lighting MV 175 W Lighting

59

A4 models of tri-bimaximal-reactor mixing  

E-Print Network (OSTI)

Recent results from T2K, MINOS and Double CHOOZ all indicate a sizeable reactor angle theta_13 which would rule out conventional tri-bimaximal lepton mixing. However, it is possible to maintain the tri-bimaximal solar and atmospheric mixing angle predictions, theta_12 ~ 35 degrees, theta_23 ~ 45 degrees even for a quite sizeable reactor angle theta_13 ~ 8 degrees, using an ansatz called tri-bimaximal-reactor (TBR) mixing proposed by one of us some time ago. We propose an explicit A4 model of leptons based on the type I seesaw mechanism at both the effective and the renormalisable level which, together with vacuum alignment, leads to surprisingly accurate TBR neutrino mixing, with the second order corrections to mixing angles having small coefficients.

Stephen F. King; Christoph Luhn

2011-12-08T23:59:59.000Z

60

Tri-Cities research may help biofuels take flight  

Science Conference Proceedings (OSTI)

Monthly economic diversity column for the Tri-City Herald. Excerpt: If you stop and think about it, some pretty interesting stuff has roots in the Tri-Cities, but reaches far beyond. Many Tri-Citians have gone on to be professional athletes, entertainers, scientists and engineers, doctors, lawyers, and humanitarians to name just a few. And a lot of groundbreaking discoveries - many born of strategic collaborations resulting from purposeful economic development efforts - have emerged from work at our local national laboratory. Just recently, Pacific Northwest National Laboratory entered into a $2M collaboration with Seattle biofuel producer Imperium Renewables and other partners to develop a new method to make renewable jet fuels. Successful development of the catalytic process, which converts biomass-based alcohols into renewable drop-in jet fuels, could lead to additional renewable jet fuel production facilities being built and operated in the Pacific Northwest.

Madison, Alison L.

2011-12-04T23:59:59.000Z

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Tri-Cities an ideal environment for biofuels research  

Science Conference Proceedings (OSTI)

These days, you dont have to go far to hear a little something about renewable power. And in the Tri-Cities, you neednt look beyond your own backyard. At the Bioproducts, Sciences, and Engineering Laboratory--BSEL--on Washington State Universitys Richland campus, scientists are doing some cutting edge research on the conversion of biomass to fuels and value-added products that are traditionally derived from petroleum. The facility, built by the State of Washington, houses scientists from both Pacific Northwest National Laboratory and WSU Tri-Cities.

Madison, Alison L.

2010-09-05T23:59:59.000Z

62

Tri-County Electric Coop, Inc (Oklahoma) | Open Energy Information  

Open Energy Info (EERE)

Tri-County Electric Coop, Inc Tri-County Electric Coop, Inc Name Tri-County Electric Coop, Inc Address PO Box 880 302 East Glaydas Place Hooker, Oklahoma Zip 73945 Product Distribution Electric Cooperative Year founded 1945 Number of employees 51-200 Phone number 800-522-3315 Website www.tri-countyelectric.co Coordinates 36.860745°, -101.212242° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":36.860745,"lon":-101.212242,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

63

Applying augmented reality to consumer garment try-on experience  

Science Conference Proceedings (OSTI)

Experience in this paper refers to the sentimental episode of consumers through service. Through experience or service, consumers can reach their internal sentiment. In terms of the general garment try-on, if consumers cannot experience the practical ... Keywords: augmented reality, consumer, experience, graphical user interface, human-machine interactive system, usability engineering methods

Alfred Chen; Chen-Yuan Kao; Ying-Hsiu Chen; Wen-Cheng Wang

2011-01-01T23:59:59.000Z

64

New Developments in TRI?P and RIASH at KVI  

Science Conference Proceedings (OSTI)

The status of the TRI?P facility at KVI is reviewed. Recent results on ion catcher devices are described. A thermo?ionizer for use with alkali and earth?alkali elements is close to completion. Concerning the use of superfluid helium as stopping medium

P. Dendooven; TRI?P group; RIASH group

2006-01-01T23:59:59.000Z

65

PHYS C1601 Solution to Optional Problem from Assignment 5 [1] Energy stored in elastic equals gravitational potential energy which is mass times dis-  

E-Print Network (OSTI)

PHYS C1601 Solution to Optional Problem from Assignment 5 [1] Energy stored in elastic equals gravitational potential energy which is mass times dis- tance dropped. Thus (1) E0.34kG = 34kG 0.36m g = 120J energy. Specifically, if the initial velocity has x and z components vx,z, the initial position

Millis, Andrew

66

Tri-County Electric Coop (Michigan) | Open Energy Information  

Open Energy Info (EERE)

Tri-County Electric Coop Tri-County Electric Coop Place Michigan Utility Id 19396 Utility Location Yes Ownership C NERC Location RFC NERC RFC Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Controlled Heating Commercial Controlled Water Heater Service Commercial Customer-Owned Back-Up Generation Industrial Farm and Home Optional Time-of-Day Residential Farm and Home Service Residential Farm and Home Service (Multiple Dwellings) Residential General Service - Single Phase Commercial General Service - Single Phase (Controlled) Commercial General Service - Three Phase Commercial

67

Tri State Electric Membership Corporation Smart Grid Project | Open Energy  

Open Energy Info (EERE)

Electric Membership Corporation Smart Grid Project Electric Membership Corporation Smart Grid Project Jump to: navigation, search Project Lead Tri State Electric Membership Corporation Country United States Headquarters Location McCaysville, Georgia Additional Benefit Places Tennessee Recovery Act Funding $1,138,060.00 Total Project Value $2,421,405.00 Coverage Area Coverage Map: Tri State Electric Membership Corporation Smart Grid Project Coordinates 34.9861914°, -84.3713117° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

68

Tri-County Elec Member Corp | Open Energy Information  

Open Energy Info (EERE)

Tri-County Elec Member Corp Tri-County Elec Member Corp Place Georgia Utility Id 18956 Utility Location Yes Ownership C NERC Location SERC NERC SERC Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Church Demand - Single Phase Commercial Church Demand - Single Phase* Commercial Church Demand - Three Phase Commercial Church Demand - Three Phase* Commercial Church Service Basic Nondemand Commercial Church Service Electric NonDemand General Service Demand - Single Phase Industrial General Service Demand - Single Phase* Commercial General Service Demand - Three Phase Industrial

69

Tri-County Elec Member Corp (Tennessee) | Open Energy Information  

Open Energy Info (EERE)

Tri-County Elec Member Corp Tri-County Elec Member Corp Place Tennessee Utility Id 19162 Utility Location Yes Ownership C NERC Location SERC NERC SERC Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png 100 Watt HPS Lighting 100 Watt Induction Lighting 1000 Watt MH Lighting 103 Watt LED Lighting 175 Watt MV Lighting 200 Watt HPS Lighting 250 Watt HPS Lighting 400 Watt HPS Lighting 400 Watt MH Lighting 400 Watt MV Lighting 51 Watt LED Lighting 85 Watt Induction Lighting GSA-Part 1 Commercial GSA-Part 2 Commercial GSA-Part 3 Industrial Residential Residential Average Rates

70

Tri-Party Agreement databases, access mechanism and procedures  

SciTech Connect

This document contains the information required for the Washington State Department of Ecology (Ecology) and the US Environmental Protection Agency (EPA) to access databases related to the Hanford Federal Facility Agreement and Consent Order [also known as the Tri-Party Agreement (TPA)] (Ecology et al. 1992). It identifies the procedure required to obtain access to the Hanford computer networks and the TPA related databases. It addresses security requirements, access methods, database availability dates, database access procedures, and the minimum computer hardware and software configurations required to operate within the Hanford networks.

Brulotte, P.J.; Christensen, K.C.

1993-10-01T23:59:59.000Z

71

Tri-functional cannula for retinal endovascular surgery  

DOE Patents (OSTI)

A tri-functional cannula combines the functions of tissue Plasminogen Activator (tPA) solution delivery, illumination and venous pressure measurement. The cannula utilizes a tapered hollow-core optical fiber having an inlet for tPA solution, an attached fiber optic splitter configured to receive illumination light from an optical source such and a LED. A window in the cannula transmits the light to and from a central retinal vein. The return light is coupled to an optical detector to measure the pressure within the vein and determine whether an occlusion has been removed.

Weiss, Jonathan D. (Albuquerque, NM)

2010-07-27T23:59:59.000Z

72

Semi-inclusive DIS Experiments Using Transversely Polarized Targets in Hall-A: Current Results and Future Plans  

SciTech Connect

Measurement of single (SSA) and double spin asymmetries (DSA) in semi-inclusive DIS reactions using polarized targets provide a powerful method to probe transverse momentum dependent parton distribution functions (TMDs). In particular, the experimentally measured SSA on nucleon targets can help in extracting the transversity and Sivers distribution functions of u and d-quarks. Similarly, the measured DSA are sensitive to the quark spin-orbital correlations, and provide an access to the TMD parton distribution function (g{sub 1T} ). A recent experiment conducted in Hall-A Jefferson Lab using transversely polarized {sup 3}He provide first such measurements on neutron target. The measurement was performed using 5.9 GeV beam from CEBAF and measured the target SSA/DSA in the SIDIS reaction {sup 3}He{sup {dagger}}(e,e'{pi}{sup {+/-}} )X. The kinematical range, x = 0.19 ~ 0.34, at Q{sup 2} = 1.77 ~ 2.73 (GeV/c){sup 2} , was focused on the valence quark region. The results from this measurement along with our plans for future high precision measurements in Hall-A are presented.

Kalyan Allada

2012-12-01T23:59:59.000Z

73

TRI.NET data engine for EPA Toxics Release Inventory | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

TRI.NET data engine for EPA Toxics Release Inventory TRI.NET data engine for EPA Toxics Release Inventory Consumer Data Apps Challenges Resources About Blogs Let's Talk Feedback Consumer You are here Data.gov » Communities » Consumer » Data TRI.NET data engine for EPA Toxics Release Inventory Dataset Summary Description TRI.NET ("T-R-I-dot-net") is a new application developed by EPA to help you analyze Toxics Release Inventory (TRI) information. This application is capable of easily and quickly performing complex queries to help you understand TRI information. It is especially useful for analysts who need a highly interactive environment in order to refine their queries and analyses in an efficient and productive way. TRI.NET makes heavy use of mashups using the latest mapping technologies to help visualize where TRI releases are occurring.

74

Department of Energy Awards $300,000 to Tri-City Industrial Developmen...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tri-City Industrial Development Council in Washington State Department of Energy Awards 300,000 to Tri-City Industrial Development Council in Washington State Department of Energy...

75

The option to try again : valuing a sequence of dependent trials  

E-Print Network (OSTI)

In various fields of economic endeavor, agents enjoy the option to ?try, try again.? Failure in a particular pursuit often brings renewed effort to finally succeed. Many areas of R&D could be characterized in this fashion. ...

Smith, James L.

2004-01-01T23:59:59.000Z

76

CT NC0  

Office of Legacy Management (LM)

x-L* d! x-L* d! CT NC0 - i , ,. i, .' i :.:(e.!' ,A\~, L.,t, - (iI :i' , . y- 2 .L i ._ 1 c\ :- i;! Ii $ 4. Ci:lc:i.nnati. 39, t>:::i.f> (J&l3 q-1 -3 sui3 Jrn T3 FRCM .I iirz 1 ?j ~ 1.3 bL1 T:' IP !REFOI?T TC 5YC?CZCiC~ :EWllIFl;j",tsSS L' I"JIsIc:;. .:;xli3;. iCAN !fA(=;-fL,yg-j L' sc,, E. $.iCLX:i?, -iIJ,x:q()Is. ON hL4X 24 - 25 ) 1.9tic ;i. A. Quiglel;, A.3, 3, M. ChenauEt gpxrIvB OF TP.~ The purpose of t3is trip was tc observe a proposed method for the dchy- dratim of green salt md to determine that all health and safety measures were being xrried out, SurveiU.ance of this nature provided protection against excessi3z personnel exposure, insured compliance with ICC shipping regulaticns, tion of the equ'~ and determined when adequate decontamira-

77

Tri State Generation and Transmission Association Inc | Open Energy  

Open Energy Info (EERE)

Generation and Transmission Association Inc Generation and Transmission Association Inc Jump to: navigation, search Name Tri-State Generation and Transmission Association Inc Place Westminster, Colorado Zip 80234 Product A wholesale electric power asset operator and transmission grid. Coordinates 43.07212°, -72.465748° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.07212,"lon":-72.465748,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

78

Microsoft Word - TriCitiesMHQ_CX_2013  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Rudiger Krohn Rudiger Krohn Project Manager - TESF-CSB-2 Proposed Action: Tri-Cities Maintenance Headquarters Project Categorical Exclusion Applied (from Subpart D, 10 C.F.R. Part 1021): B1.15 Support Buildings Location: Pasco, Franklin County, Washington T9N, R30E, Section 21 Proposed by: Bonneville Power Administration (BPA) Description of the Proposed Action: BPA is proposing to build a maintenance headquarters facility (MHQ facility) on 18 acres in Franklin County, Washington. The site is located in Pasco, WA, in a fallow agricultural field that is zoned light industrial by the City of Pasco. The vegetation at the site consists of invasive weed species such as Russian thistle (Salsola tragus), tumble mustard (Sisymbrium altissimum), cheatgrass (Bromus tectorum) and tarweed (Madia spp.). The site is

79

Tri-County Electric Coop, Inc (Texas) | Open Energy Information  

Open Energy Info (EERE)

Inc (Texas) Inc (Texas) Jump to: navigation, search Name Tri-County Electric Coop, Inc Place Texas Utility Id 19159 Utility Location Yes Ownership C NERC Location TRE NERC ERCOT Yes ISO Ercot Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Commercial Service - Economic Development Commercial Cotton Gin Service Industrial Distributed Generation Facilities Less than 10MW (Over50KW and under 10MW) Commercial Distributed Generation Facilities Less than 10MW (50KW and smaller) Commercial General Service Single Phase Commercial General Service Three Phase Commercial

80

Tri-State Electric Member Corp | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Jump to: navigation, search Name Tri-State Electric Member Corp Place McCaysville, Georgia Utility Id 19154 Utility Location Yes Ownership C NERC Location SERC NERC SERC Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] SGIC[2] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Rate 1 - Residential Residential Rate 40 - Small Commercial GSA-1 (less 50 kW) Commercial Rate 50 - Commercial GSA-2 (51-1000 kW) Commercial Rate 54 - Large Commercial GSA-3 (1001-5000 kW) Commercial Rate 57 - Seasonal Demand Commercial Rate 72 - Street Lighting Lighting Rate 73 - Athletic Field Lighting Lighting

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Tri-County Elec Member Corp (Kentucky) | Open Energy Information  

Open Energy Info (EERE)

Corp (Kentucky) Corp (Kentucky) Jump to: navigation, search Name Tri-County Elec Member Corp Place Kentucky Utility Id 19162 References EIA Form EIA-861 Final Data File for 2010 - File2_2010[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png 100 Watt HPS Lighting 100 Watt Induction Lighting 1000 Watt MH Lighting 103 Watt LED Lighting 175 Watt MV Lighting 200 Watt HPS Lighting 250 Watt HPS Lighting 400 Watt HPS Lighting 400 Watt MH Lighting 400 Watt MV Lighting 51 Watt LED Lighting 85 Watt Induction Lighting GSA-Part 1 Commercial GSA-Part 2 Commercial GSA-Part 3 Industrial Residential Residential Average Rates Residential: $0.0941/kWh Commercial: $0.1050/kWh

82

Frostbite Theater - Experiments You Can Try at Home! - Optical Illusions  

NLE Websites -- All DOE Office Websites (Extended Search)

Squealing Dry Ice Squealing Dry Ice Previous Video (Squealing Dry Ice) Frostbite Theater Main Index Next Video (Let's Make Oobleck!) Let's Make Oobleck! Optical Illusions Which square appears to be darker, square A or square B? This is an optical illusion you can do at home for yourself! Want to do this yourself? Download the graphic and give it a try! [ Show Transcript ] Announcer: Frostbite Theater presents... Cold Cuts! No baloney! Joanna and Steve: Just science! Joanna: Hi! I'm Joanna! Steve: And I'm Steve! Joanna: During Jefferson Lab's Science Series lecture, Dr. Eric Mazur of Harvard University showed the audience an optical illusion that we thought we'd share with you! Steve: Here's the basic set-up. There is what appears to be a green cylinder casting a shadow on a checker board. One square is labeled 'A' and

83

Aspects of Cooling at the TRI$?$P Facility  

E-Print Network (OSTI)

The Tri$\\mu$P facility at KVI is dedicated to provide short lived radioactive isotopes at low kinetic energies to users. It comprised different cooling schemes for a variety of energy ranges, from GeV down to the neV scale. The isotopes are produced using beam of the AGOR cyclotron at KVI. They are separated from the primary beam by a magnetic separator. A crucial part of such a facility is the ability to stop and extract isotopes into a low energy beamline which guides them to the experiment. In particular we are investigating stopping in matter and buffer gases. After the extraction the isotopes can be stored in neutral atoms or ion traps for experiments. Our research includes precision studies of nuclear $\\beta$-decay through $\\beta$-$\

L. Willmann; G. P. Berg; U. Dammalapati; S. De; P. Dendooven; O. Dermois; K. Jungmann; A. Mol; C. J. G. Onderwater; A. Rogachevskiy; M. Sohani; E. Traykov; H. W. Wilschut

2006-02-03T23:59:59.000Z

84

Hanford Diversification and the Tri-Cities Economy FY 1999  

Science Conference Proceedings (OSTI)

The missions of the U.S. Department of Energy's Richland Operations Office (DOE/RL) are to safely manage the Hanford Site, to manage and clean up its legacy wastes, and to develop and deploy new science and technology in the environmental and energy fields. Collectively, DOE/RL and its contractors are the most important single entity in the Tri-Cities local economy (Pasco, Kennewick, and Richland, Washington, and the surrounding area). Although the relevant economic region affected by DOE/RL and its contractors actually embraces a geographic area reaching from Yakima in the west to Walla Walla in the east and from Moses Lake in the north to Pendleton, Oregon, in the south, over 90% of economic impacts likely occur in Benton and Franklin Counties. These two counties are defined as the ''local'' Tri-Cities economy for purposes of this study. In the federal fiscal year (FY) 1999 (October 1, 1998 through September 30, 1999), the total impact of DOE'S local $1.59 billion budget was felt through payrolls of $542 million and local purchases of goods and services of $226 million. The total local spending of $768 million was up slightly from the FY 1998 total of $765 million. Taking into account the multiplier effects of this spending, the DOE/RL budget sustained an estimated 32% of all local employment (28,250 out of 88,100 jobs) and about 35% of local earned income (almost $1.08 billion out of $3.08 billion). The decrease in these percentages from last year's report reflects an update of the model's economic structure based on the 1997 economic census year, a correction of a programming error in the model found during the update, and a broader definition of earnings that includes proprietor income, not just wages (see the Appendix for revisions to the previous forecasts). DOE budget increases in FY 2000 are expected to result in no change to the number of local DOE contractor jobs and about a $29 million increase in direct local spending.

SCOTT, M.J.

2000-06-05T23:59:59.000Z

85

Practical CT technology and techniques  

SciTech Connect

This handbook equips both radiologists and radiologists in training with a thorough working knowledge of the mechanisms and processes of computed tomography (CT) image generation, the common causes of image artifacts, and useful examination protocols for each area of the body. The author explains the fundamental technological principles of CT, focusing on those concepts crucial to successful CT examinations. The first part of the book succinctly reviews the fundamentals of CT technology. It begins with a methodical introduction to key principles of X-ray physics and technology, in which topics such as the modulation transfer function, magnification, and the X-ray tube are discussed in understandable, nonmathematical terms. The author then explains the basic technology of CT scanners, the principles of scan projection radiography, and the essential rules for radiation dosage determination and radiation protection. Careful attention is given to selectable scan factors in both routine and dynamic scanning, as well as to the processes involved in image creation and refinement and the chief determinants of image quality. Basic and specialized program features and the technology of image display, recording, and storage are also thoroughly described.

Berland, L.L.

1987-01-01T23:59:59.000Z

86

Category:Bridgeport, CT | Open Energy Information  

Open Energy Info (EERE)

Bridgeport, CT Bridgeport, CT Jump to: navigation, search Go Back to PV Economics By Location Media in category "Bridgeport, CT" The following 16 files are in this category, out of 16 total. SVFullServiceRestaurant Bridgeport CT Connecticut Light & Power Co.png SVFullServiceRestauran... 64 KB SVQuickServiceRestaurant Bridgeport CT Connecticut Light & Power Co.png SVQuickServiceRestaura... 63 KB SVHospital Bridgeport CT Connecticut Light & Power Co.png SVHospital Bridgeport ... 71 KB SVLargeHotel Bridgeport CT Connecticut Light & Power Co.png SVLargeHotel Bridgepor... 67 KB SVLargeOffice Bridgeport CT Connecticut Light & Power Co.png SVLargeOffice Bridgepo... 72 KB SVMediumOffice Bridgeport CT Connecticut Light & Power Co.png SVMediumOffice Bridgep...

87

TFC-0004 - In the Matter of Tri-Valley CARES | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

4 - In the Matter of Tri-Valley CARES 4 - In the Matter of Tri-Valley CARES TFC-0004 - In the Matter of Tri-Valley CARES Tri-Valley CARES filed an Appeal from a determination that the National Nuclear Security Administration (NNSA) issued on June 2, 2010. In that determination, NNSA denied in part a request for information that Tri-Valley CARES had submitted on September 8, 2008, pursuant to the Freedom of Information Act (FOIA), 5 U.S.C. § 552. NNSA withheld information that was responsive to the request after it determined that the information was protected from mandatory disclosure under two provisions of the FOIA. This Appeal, if granted, would require the DOE to release the portions of those documents responsive to Tri-Valley CARES's request that were withheld from disclosure due to their classified nature. The FOIA

88

Examination of Hydrate Formation Methods: Trying to Create Representative Samples  

Science Conference Proceedings (OSTI)

Forming representative gas hydrate-bearing laboratory samples is important so that the properties of these materials may be measured, while controlling the composition and other variables. Natural samples are rare, and have often experienced pressure and temperature changes that may affect the property to be measured [Waite et al., 2008]. Forming methane hydrate samples in the laboratory has been done a number of ways, each having advantages and disadvantages. The ice-to-hydrate method [Stern et al., 1996], contacts melting ice with methane at the appropriate pressure to form hydrate. The hydrate can then be crushed and mixed with mineral grains under controlled conditions, and then compacted to create laboratory samples of methane hydrate in a mineral medium. The hydrate in these samples will be part of the load-bearing frame of the medium. In the excess gas method [Handa and Stupin, 1992], water is distributed throughout a mineral medium (e.g. packed moist sand, drained sand, moistened silica gel, other porous media) and the mixture is brought to hydrate-stable conditions (chilled and pressurized with gas), allowing hydrate to form. This method typically produces grain-cementing hydrate from pendular water in sand [Waite et al., 2004]. In the dissolved gas method [Tohidi et al., 2002], water with sufficient dissolved guest molecules is brought to hydrate-stable conditions where hydrate forms. In the laboratory, this is can be done by pre-dissolving the gas of interest in water and then introducing it to the sample under the appropriate conditions. With this method, it is easier to form hydrate from more soluble gases such as carbon dioxide. It is thought that this method more closely simulates the way most natural gas hydrate has formed. Laboratory implementation, however, is difficult, and sample formation is prohibitively time consuming [Minagawa et al., 2005; Spangenberg and Kulenkampff, 2005]. In another version of this technique, a specified quantity of gas is placed in a sample, then the sample is flooded with water and cooled [Priest et al., 2009]. We have performed a number of tests in which hydrate was formed and the uniformity of the hydrate formation was examined. These tests have primarily used a variety of modifications of the excess gas method to make the hydrate, although we have also used a version of the excess water technique. Early on, we found difficulties in creating uniform samples with a particular sand/ initial water saturation combination (F-110 Sand, {approx} 35% initial water saturation). In many of our tests we selected this combination intentionally to determine whether we could use a method to make the samples uniform. The following methods were examined: Excess gas, Freeze/thaw/form, Freeze/pressurize/thaw, Excess gas followed by water saturation, Excess water, Sand and kaolinite, Use of a nucleation enhancer (SnoMax), and Use of salt in the water. Below, each method, the underlying hypothesis, and our results are briefly presented, followed by a brief conclusion. Many of the hypotheses investigated are not our own, but were presented to us. Much of the data presented is from x-ray CT scanning our samples. The x-ray CT scanner provides a three-dimensional density map of our samples. From this map and the physics that is occurring in our samples, we are able to gain an understanding of the spatial nature of the processes that occur, and attribute them to the locations where they occur.

Kneafsey, T.J.; Rees, E.V.L.; Nakagawa, S.; Kwon, T.-H.

2011-04-01T23:59:59.000Z

89

CT Investment Partners LLP | Open Energy Information  

Open Energy Info (EERE)

CT Investment Partners LLP Jump to: navigation, search Name CT Investment Partners LLP Place London, United Kingdom Zip WC2A 2AZ Sector Carbon Product Venture capital arm of the...

90

Russia Tri-Lab S&T Collaborations | National Nuclear Security...  

National Nuclear Security Administration (NNSA)

Our Jobs Working at NNSA Blog The National Nuclear Security Administration Russia Tri-Lab S&T Collaborations Home > About Us > Our Programs > Defense Programs > Future Science...

91

Test Reference Year (TRY). Final report. [Weather data collection for building energy demand calculations  

SciTech Connect

The Test Reference Year (TRY) for a specified location is a data collection consisting of 8760 sets of hourly weather data. Its main objective is to provide data for computerized calculations regarding energy conservation, energy consumption in buildings, and indoor climate. This report recommends a suitable format for such a TRY, describes which weather data are mandatory for such a TRY to meet the main objective, and recommends how it can be published. The report does not recommend any specific procedure for generating or selecting a TRY for a given location.

1977-08-01T23:59:59.000Z

92

Tri-Laboratory Linux Capacity Cluster 2007 SOW  

SciTech Connect

The Advanced Simulation and Computing (ASC) Program (formerly know as Accelerated Strategic Computing Initiative, ASCI) has led the world in capability computing for the last ten years. Capability computing is defined as a world-class platform (in the Top10 of the Top500.org list) with scientific simulations running at scale on the platform. Example systems are ASCI Red, Blue-Pacific, Blue-Mountain, White, Q, RedStorm, and Purple. ASC applications have scaled to multiple thousands of CPUs and accomplished a long list of mission milestones on these ASC capability platforms. However, the computing demands of the ASC and Stockpile Stewardship programs also include a vast number of smaller scale runs for day-to-day simulations. Indeed, every 'hero' capability run requires many hundreds to thousands of much smaller runs in preparation and post processing activities. In addition, there are many aspects of the Stockpile Stewardship Program (SSP) that can be directly accomplished with these so-called 'capacity' calculations. The need for capacity is now so great within the program that it is increasingly difficult to allocate the computer resources required by the larger capability runs. To rectify the current 'capacity' computing resource shortfall, the ASC program has allocated a large portion of the overall ASC platforms budget to 'capacity' systems. In addition, within the next five to ten years the Life Extension Programs (LEPs) for major nuclear weapons systems must be accomplished. These LEPs and other SSP programmatic elements will further drive the need for capacity calculations and hence 'capacity' systems as well as future ASC capability calculations on 'capability' systems. To respond to this new workload analysis, the ASC program will be making a large sustained strategic investment in these capacity systems over the next ten years, starting with the United States Government Fiscal Year 2007 (GFY07). However, given the growing need for 'capability' systems as well, the budget demands are extreme and new, more cost effective ways of fielding these systems must be developed. This Tri-Laboratory Linux Capacity Cluster (TLCC) procurement represents the ASC first investment vehicle in these capacity systems. It also represents a new strategy for quickly building, fielding and integrating many Linux clusters of various sizes into classified and unclassified production service through a concept of Scalable Units (SU). The programmatic objective is to dramatically reduce the overall Total Cost of Ownership (TCO) of these 'capacity' systems relative to the best practices in Linux Cluster deployments today. This objective only makes sense in the context of these systems quickly becoming very robust and useful production clusters under the crushing load that will be inflicted on them by the ASC and SSP scientific simulation capacity workload.

Seager, M

2007-03-22T23:59:59.000Z

93

TRI (Toxic Chemical Release Inventory) for Power Plants RY2012 Version 1.  

Science Conference Proceedings (OSTI)

TRI for Power Plants is a powerful, user-friendly tool for estimating, tracking, and reporting releases of chemicalsprimarily trace substancesfrom fossil-fired steam electric plants. The spreadsheet-like tool has been applied by numerous energy companies to increase the efficiency and reduce the costs of Toxics Release Inventory (TRI)-related analyses while enhancing compliance ...

2013-04-10T23:59:59.000Z

94

Testing of the TriP Chip Running at 132 nsec Using a Modified AFE Board  

SciTech Connect

In this note we describe the first set of tests done with a sample of TriP chips that were mounted on a modified AFE board. The modifications consisted of different firmware and the replacement of one power supply switch. The board used was a standard AFEIc board (red type) on which new MCMs (MCMIIs) were mounted. The new MCMs were designed to support the TriP and emulate the SVX for readout when mounted on an AFEIc board. The TriP and the MCMs are described in Ref. [1]. Two versions of the MCMII were designed and built: one (MCMIIb) supports two TriP chips wirebonded directly to the MCM substrate. The other, (MCMIIc) supports one TriP which can be either wirebonded directly or packaged into a standard TQFP surface mount package. Due to space constraints, this MCM can support only 1 TriP. We tested 6 TriP chips on 3 different MCMIIb (MCMIIb-1, MCMIIb-2 and MCMIIb-3) and 2 other TriPs were tested on MCMIIc, one of them with an unpackaged TriP (MCMIIc-1) and the other with a packaged TriP (MCMIIc-2). A set of 10 programable internal registers control the TriP operation, the description of these registers can be found in [1]. Table 1 shows the values used for the tests described in this note. In Ref. [1] there is a description of the signals that are needed to operate the TriP chip. We implemented in a Field Programable Gate Array (FPGA), also part of the MCM, a set of shift registers that allow us to download via the 1553 interface to the AFE board, any desired timing for the signals that the FPGA has to send to the TriP chip. These registers are run with a 121.21 MHz clock (which is 16x the crossing clock and phase locked to it), which means that each bit corresponds to a time interval of 8.25 nsec. Finer control of timing is possible, but this changing the programing of the FPGA and recompiling. The bits downloaded to these shift registers inside the TriP are listed in Table 2.

Juan Estrada et al.

2003-12-19T23:59:59.000Z

95

NNSA Small Business Week Day 3: Tri-State General Contracting Group, Inc. |  

National Nuclear Security Administration (NNSA)

3: Tri-State General Contracting Group, Inc. | 3: Tri-State General Contracting Group, Inc. | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > Media Room > Press Releases > NNSA Small Business Week Day 3: Tri-State ... Press Release NNSA Small Business Week Day 3: Tri-State General Contracting Group, Inc. Dec 15, 2010 Tri-State General Contracting Group, Inc. currently installing a HVAC

96

CT Offshore | Open Energy Information  

Open Energy Info (EERE)

CT Offshore CT Offshore Place Otterup, Denmark Zip 5450 Sector Wind energy Product Denmark-based consultancy which provides assistance for project management, damage assessment and stabilization as well as other activities related to wind farms and subsea maintenance. Coordinates 55.543228°, 10.40294° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":55.543228,"lon":10.40294,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

97

Siemens Corporate Technology CT | Open Energy Information  

Open Energy Info (EERE)

Name Siemens Corporate Technology (CT) Place Erlangan, Germany Sector Solar Product R&D lab for Siemens AG. Currently researching buckyballs and conductive plastic for solar...

98

CT Solar Loan | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

a pilot loan program, CT Solar Loan, to provide homeowners with 15-year loans for solar PV equipment. The loans are administered through Sungage. Interested residents must...

99

TRI-STATE GENERATION AND TRANSMISSION ASSOCIATION, INC. HEADQUARTERS: P.O  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

TRI-STATE GENERATION AND TRANSMISSION ASSOCIATION, INC. TRI-STATE GENERATION AND TRANSMISSION ASSOCIATION, INC. HEADQUARTERS: P.O . BOX 33695 DENVER, COLORADO 80233-0695 October 31, 2013 Ms. Julie A. Smith and Mr. Christopher Lawrence Office of Electricity Delivery and Energy Reliability (OE-20) U.S. Department of Energy 1000 Independence Avenue, SW Washington, DC 20585 Submitted electronically via email to : juliea.smith@hq.doe.gov and christopher.lawrence@hq.doe.gov 303-452-6111 Re: Department of Energy-Improving Performance of Federal Permitting and Review of Infrastructure Projects, Request for Information, 78 Fed. Reg. 53436 (Aug. 29, 2013) Dear Ms. Smith and Mr. Lawrence: Tri-State Generation and Transmission Assoc. , Inc. (Tri-State) appreciates the opportunity to provide comments regarding the proposed draft Integrated Interagency Pre-

100

Science.gov? Try ciencia.science.gov | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Science.gov? Try ciencia.science.gov Science.gov? Try ciencia.science.gov Science.gov? Try ciencia.science.gov October 15, 2012 - 10:10am Addthis Science.gov? Try ciencia.science.gov Dot Harris Dot Harris The Honorable Dot Harris, Director, Office of Economic Impact and Diversity If you laid out 200 million pieces of paper in a line, you'd travel the length of 508,000 football fields - which may give you some sense of the vastness of the amount of content that was translated into Spanish from science.gov this week. The 200 million pages of authoritative U.S. government science information can now be accessed on ciencia.science.gov, home of the Spanish version of research and development results from 17 organizations within 13 federal science agencies, 55 scientific databases, and 2,100 scientific websites.

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Russia Tri-Lab S&T Collaborations | National Nuclear Security...  

National Nuclear Security Administration (NNSA)

Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog The National Nuclear Security Administration Russia Tri-Lab S&T Collaborations Home > About Us > Our Programs >...

102

Department of Energy Awards $600,000 to Tri-City Industrial Development Council Community Reuse Organization  

Energy.gov (U.S. Department of Energy (DOE))

Department of Energy Awards $600,000 to Tri-City Industrial Development Council Community Reuse Organization

103

CT Solar Loan | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CT Solar Loan CT Solar Loan CT Solar Loan < Back Eligibility Multi-Family Residential Residential Savings Category Solar Buying & Making Electricity Program Info State Connecticut Program Type State Loan Program Provider Sungage, Inc. The Clean Energy Finance and Investment Authority is offering a pilot loan program, CT Solar Loan, to provide homeowners with 15-year loans for solar PV equipment. The loans are administered through Sungage. Interested residents must apply online to be pre-qualified for the loan. Once the loan is in place, an approved installer files permits, order equipment, and installs the system on behalf of the resident. See the program web site for application materials. Source http://www.dsireusa.org/incentives/incentive.cfm?Incentive_Code=CT101F

104

Resonant Soft X-Ray Scattering of Tri-Block Copolymers  

NLE Websites -- All DOE Office Websites (Extended Search)

Resonant Soft X-Ray Scattering Resonant Soft X-Ray Scattering of Tri-Block Copolymers Resonant Soft X-Ray Scattering of Tri-Block Copolymers Print Wednesday, 30 May 2012 00:00 In principle, tri-block copolymers (tri-BCPs), consisting of three chemically distinct polymers covalently joined together at the ends of each polymer chain, can serve as scaffolds and templates for fabricating a vast number of nanostructures. While quantitatively understanding the details of the morphology and the manner in which the different blocks interact with surfaces and interfaces is critical to success, previous experiments have been few. Now, an international team from the United States, Korea, and Japan has succeeded in combining resonant soft x-ray scattering (RSoXS) at ALS Beamline 11.0.1 with transmission electron microscopy tomography (TEMT) and other techniques to unambiguously determine morphologies comprising two nested hexagonally packed arrays of nanoscopic, cylindrical microdomains in the bulk and a core-shell nanostructure in a thin film. Not only has this work revealed a new phase of ABC tri-block copolymer with complicated morphology, it has illustrated the importance of RSoXS as a unique, powerful tool for examining complex, multi-component systems that could not be characterized with conventional methods.

105

Resonant Soft X-Ray Scattering of Tri-Block Copolymers  

NLE Websites -- All DOE Office Websites (Extended Search)

Resonant Soft X-Ray Scattering of Tri-Block Copolymers Print Resonant Soft X-Ray Scattering of Tri-Block Copolymers Print In principle, tri-block copolymers (tri-BCPs), consisting of three chemically distinct polymers covalently joined together at the ends of each polymer chain, can serve as scaffolds and templates for fabricating a vast number of nanostructures. While quantitatively understanding the details of the morphology and the manner in which the different blocks interact with surfaces and interfaces is critical to success, previous experiments have been few. Now, an international team from the United States, Korea, and Japan has succeeded in combining resonant soft x-ray scattering (RSoXS) at ALS Beamline 11.0.1 with transmission electron microscopy tomography (TEMT) and other techniques to unambiguously determine morphologies comprising two nested hexagonally packed arrays of nanoscopic, cylindrical microdomains in the bulk and a core-shell nanostructure in a thin film. Not only has this work revealed a new phase of ABC tri-block copolymer with complicated morphology, it has illustrated the importance of RSoXS as a unique, powerful tool for examining complex, multi-component systems that could not be characterized with conventional methods.

106

Resonant Soft X-Ray Scattering of Tri-Block Copolymers  

NLE Websites -- All DOE Office Websites (Extended Search)

Resonant Soft X-Ray Scattering of Tri-Block Copolymers Print Resonant Soft X-Ray Scattering of Tri-Block Copolymers Print In principle, tri-block copolymers (tri-BCPs), consisting of three chemically distinct polymers covalently joined together at the ends of each polymer chain, can serve as scaffolds and templates for fabricating a vast number of nanostructures. While quantitatively understanding the details of the morphology and the manner in which the different blocks interact with surfaces and interfaces is critical to success, previous experiments have been few. Now, an international team from the United States, Korea, and Japan has succeeded in combining resonant soft x-ray scattering (RSoXS) at ALS Beamline 11.0.1 with transmission electron microscopy tomography (TEMT) and other techniques to unambiguously determine morphologies comprising two nested hexagonally packed arrays of nanoscopic, cylindrical microdomains in the bulk and a core-shell nanostructure in a thin film. Not only has this work revealed a new phase of ABC tri-block copolymer with complicated morphology, it has illustrated the importance of RSoXS as a unique, powerful tool for examining complex, multi-component systems that could not be characterized with conventional methods.

107

Resonant Soft X-Ray Scattering of Tri-Block Copolymers  

NLE Websites -- All DOE Office Websites (Extended Search)

Resonant Soft X-Ray Scattering of Tri-Block Copolymers Print Resonant Soft X-Ray Scattering of Tri-Block Copolymers Print In principle, tri-block copolymers (tri-BCPs), consisting of three chemically distinct polymers covalently joined together at the ends of each polymer chain, can serve as scaffolds and templates for fabricating a vast number of nanostructures. While quantitatively understanding the details of the morphology and the manner in which the different blocks interact with surfaces and interfaces is critical to success, previous experiments have been few. Now, an international team from the United States, Korea, and Japan has succeeded in combining resonant soft x-ray scattering (RSoXS) at ALS Beamline 11.0.1 with transmission electron microscopy tomography (TEMT) and other techniques to unambiguously determine morphologies comprising two nested hexagonally packed arrays of nanoscopic, cylindrical microdomains in the bulk and a core-shell nanostructure in a thin film. Not only has this work revealed a new phase of ABC tri-block copolymer with complicated morphology, it has illustrated the importance of RSoXS as a unique, powerful tool for examining complex, multi-component systems that could not be characterized with conventional methods.

108

Resonant Soft X-Ray Scattering of Tri-Block Copolymers  

NLE Websites -- All DOE Office Websites (Extended Search)

Resonant Soft X-Ray Scattering of Tri-Block Copolymers Print Resonant Soft X-Ray Scattering of Tri-Block Copolymers Print In principle, tri-block copolymers (tri-BCPs), consisting of three chemically distinct polymers covalently joined together at the ends of each polymer chain, can serve as scaffolds and templates for fabricating a vast number of nanostructures. While quantitatively understanding the details of the morphology and the manner in which the different blocks interact with surfaces and interfaces is critical to success, previous experiments have been few. Now, an international team from the United States, Korea, and Japan has succeeded in combining resonant soft x-ray scattering (RSoXS) at ALS Beamline 11.0.1 with transmission electron microscopy tomography (TEMT) and other techniques to unambiguously determine morphologies comprising two nested hexagonally packed arrays of nanoscopic, cylindrical microdomains in the bulk and a core-shell nanostructure in a thin film. Not only has this work revealed a new phase of ABC tri-block copolymer with complicated morphology, it has illustrated the importance of RSoXS as a unique, powerful tool for examining complex, multi-component systems that could not be characterized with conventional methods.

109

Resonant Soft X-Ray Scattering of Tri-Block Copolymers  

NLE Websites -- All DOE Office Websites (Extended Search)

Resonant Soft X-Ray Scattering of Tri-Block Copolymers Print Resonant Soft X-Ray Scattering of Tri-Block Copolymers Print In principle, tri-block copolymers (tri-BCPs), consisting of three chemically distinct polymers covalently joined together at the ends of each polymer chain, can serve as scaffolds and templates for fabricating a vast number of nanostructures. While quantitatively understanding the details of the morphology and the manner in which the different blocks interact with surfaces and interfaces is critical to success, previous experiments have been few. Now, an international team from the United States, Korea, and Japan has succeeded in combining resonant soft x-ray scattering (RSoXS) at ALS Beamline 11.0.1 with transmission electron microscopy tomography (TEMT) and other techniques to unambiguously determine morphologies comprising two nested hexagonally packed arrays of nanoscopic, cylindrical microdomains in the bulk and a core-shell nanostructure in a thin film. Not only has this work revealed a new phase of ABC tri-block copolymer with complicated morphology, it has illustrated the importance of RSoXS as a unique, powerful tool for examining complex, multi-component systems that could not be characterized with conventional methods.

110

First Try  

NLE Websites -- All DOE Office Websites (Extended Search)

curricular guidelines include the Special Theory of Relativity and The Standard Model. Skills that are required include a basic background in the language of science and the...

111

Ion Stopping Powers and CT Numbers  

SciTech Connect

One of the advantages of ion beam therapy is the steep dose gradient produced near the ion's range. Use of this advantage makes knowledge of the stopping powers for all materials through which the beam passes critical. Most treatment planning systems calculate dose distributions using depth dose data measured in water and an algorithm that converts the kilovoltage X-ray computed tomography (CT) number of a given material to its linear stopping power relative to water. Some materials present in kilovoltage scans of patients and simulation phantoms do not lie on the standard tissue conversion curve. The relative linear stopping powers (RLSPs) of 21 different tissue substitutes and positioning, registration, immobilization, and beamline materials were measured in beams of protons accelerated to energies of 155, 200, and 250 MeV; carbon ions accelerated to 290 MeV/n; and iron ions accelerated to 970 MeV/n. These same materials were scanned with both kilovoltage and megavoltage CT scanners to obtain their CT numbers. Measured RLSPs and CT numbers were compared with calculated and/or literature values. Relationships of RLSPs to physical densities, electronic densities, kilovoltage CT numbers, megavoltage CT numbers, and water equivalence values converted by a treatment planning system are given. Usage of CT numbers and substitution of measured values into treatment plans to provide accurate patient and phantom simulations are discussed.

Moyers, Michael F., E-mail: MFMoyers@roadrunner.co [Department of Proton Therapy, Inc., Colton, CA (United States); Sardesai, Milind [Department of Long Beach Memorial Medical Center, Long Beach, CA (United States); Sun, Sean [Department of City of Hope National Medical Center, Duarte, CA (United States); Miller, Daniel W. [Department of Loma Linda University Medical Center, Loma Linda, CA (United States)

2010-10-01T23:59:59.000Z

112

Fuel Cell Tri-Generation System Case Study using the H2A Stationary Model  

NLE Websites -- All DOE Office Websites (Extended Search)

Fuel Cell Tri-Generation System Case Fuel Cell Tri-Generation System Case Study using the H2A Stationary Model Darlene Steward/ Mike Penev National Renewable Energy Laboratory Integrated Stationary Power and Transportation Workshop Phoenix, Arizona October 27, 2008 National Renewable Energy Laboratory Innovation for Our Energy Future 2 Introduction Goal: Develop a cost analysis tool that will be flexible and comprehensive enough to realistically analyze a wide variety of potential combined heat and power/hydrogen production scenarios Approach: Rely on the H2A discounted cash flow methodology to develop a new stationary systems model With the help of industry partners, develop and analyze a range of realistic case studies for tri-generation systems. National Renewable Energy Laboratory Innovation for Our Energy Future

113

Tri-fold - Agencies Assisting with EEOICPA and the Former worker Program |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Information Center » Worker » Former Worker Program » Tri-fold - Information Center » Worker » Former Worker Program » Tri-fold - Agencies Assisting with EEOICPA and the Former worker Program Tri-fold - Agencies Assisting with EEOICPA and the Former worker Program January 2014 Agencies Assisting with EEOICPA and the Former Worker Program FWP provides no-cost medical screenings to all former DOE Federal, contractor, and subcontractor employees. The screening focuses on the early detection of health conditions that may be related to occupational exposures such as beryllium, asbestos, radiation, silica, etc. Medical screenings include a physical exam, hearing test, Medical screenings include a physical exam, hearing test, blood and urine tests, and other special tests depending on the individual's work and exposure history.

114

Want to Finance a Wind Farm Project in Your Community? Try Crowdfunding |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Want to Finance a Wind Farm Project in Your Community? Try Want to Finance a Wind Farm Project in Your Community? Try Crowdfunding Want to Finance a Wind Farm Project in Your Community? Try Crowdfunding September 24, 2013 - 10:12am Addthis A wind turbine is installed at the Crow Lake Wind project, just east of Chamberlain, S.D. | Photo Courtesy of East River Electric Power Cooperative A wind turbine is installed at the Crow Lake Wind project, just east of Chamberlain, S.D. | Photo Courtesy of East River Electric Power Cooperative The Crow Lake Wind project is the largest cooperative-owned wind project in the United States. | Photo Courtesy of East River Electric Power Cooperative The Crow Lake Wind project is the largest cooperative-owned wind project in the United States. | Photo Courtesy of East River Electric Power

115

Tri-City Herald: Japanese Officials See How Hanford Does It | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tri-City Herald: Japanese Officials See How Hanford Does It Tri-City Herald: Japanese Officials See How Hanford Does It Tri-City Herald: Japanese Officials See How Hanford Does It January 18, 2013 - 12:00pm Addthis Tokyo Electric Power Company officials tour the Hanford Site to learn about cleanup technologies that could be used at Fukushima. Tokyo Electric Power Company officials tour the Hanford Site to learn about cleanup technologies that could be used at Fukushima. On opposite sides of the Pacific Ocean, similar work to clean up radioactive contamination is planned to be carried out during the next 40 years. Thursday, officials from the Tokyo Electric Power Co., the utility that operated the Fukushima, Japan, nuclear reactors, toured Hanford to see how work is being done there to clean up contamination from the past production

116

Want to Finance a Wind Farm Project in Your Community? Try Crowdfunding |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Want to Finance a Wind Farm Project in Your Community? Try Want to Finance a Wind Farm Project in Your Community? Try Crowdfunding Want to Finance a Wind Farm Project in Your Community? Try Crowdfunding September 24, 2013 - 10:12am Addthis A wind turbine is installed at the Crow Lake Wind project, just east of Chamberlain, S.D. | Photo Courtesy of East River Electric Power Cooperative A wind turbine is installed at the Crow Lake Wind project, just east of Chamberlain, S.D. | Photo Courtesy of East River Electric Power Cooperative The Crow Lake Wind project is the largest cooperative-owned wind project in the United States. | Photo Courtesy of East River Electric Power Cooperative The Crow Lake Wind project is the largest cooperative-owned wind project in the United States. | Photo Courtesy of East River Electric Power

117

Russia Tri-Lab S&T Collaborations | National Nuclear Security  

National Nuclear Security Administration (NNSA)

Russia Tri-Lab S&T Collaborations | National Nuclear Security Russia Tri-Lab S&T Collaborations | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog The National Nuclear Security Administration Russia Tri-Lab S&T Collaborations Home > About Us > Our Programs > Defense Programs > Future Science & Technology Programs > Office of Advanced Simulation and Computing and

118

Northeast - NY NJ CT PA Area | Open Energy Information  

Open Energy Info (EERE)

Northeast - NY NJ CT PA Area Northeast - NY NJ CT PA Area (Redirected from New York Area - NY NJ CT PA) Jump to: navigation, search Contents 1 Clean Energy Clusters in the Northeast - NY NJ CT PA Area 1.1 Products and Services in the Northeast - NY NJ CT PA Area 1.2 Research and Development Institutions in the Northeast - NY NJ CT PA Area 1.3 Networking Organizations in the Northeast - NY NJ CT PA Area 1.4 Investors and Financial Organizations in the Northeast - NY NJ CT PA Area 1.5 Policy Organizations in the Northeast - NY NJ CT PA Area Clean Energy Clusters in the Northeast - NY NJ CT PA Area Products and Services in the Northeast - NY NJ CT PA Area Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":500,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

119

Hanford and the tri-cities economy: Review and outlook, March 1989  

Science Conference Proceedings (OSTI)

The economy of the Tri-Cities, Washington area (primarily, Benton and Franklin Counties) is in transition due to major changes in two Department of Energy programs at Hanford---the abrupt ending of the Basalt Waste Isolation Project (BWIP) in December 1987 and the placing of the N Reactor in ''cold standby'' status in February 1988. This report reviews the economic situation in the Tri-Cities during 1988 and presents forecasts for key economic indicators for 1989. This report will be updated about every six months to review the changes in the area economy and forecast the near-term outlook. 6 figs., 33 tabs.

Scott, M.J.; Belzer, D.B.; March, S.J.; Beck, D.M.; Schultz, R.W.; Harkreader, S.A.

1989-03-01T23:59:59.000Z

120

Hanford and the Tri-Cities Economy: Historical Trends 1970-2008  

SciTech Connect

This white paper examines the effect that the Hanford Site has had on the Tri-Cities economy from 1970-2008. Total area employment levels, population, and the real estate market are compared to DOE contractor employment and funding levels, which tended to follow each other until the mid-1990s. Since 1994, area employment, total incomes, population and the real estate market have increased significantly despite very little changes in Hanford employment levels. The data indicate that in recent history, the Tri-Cities economy has become increasingly independent of Hanford.

Fowler, Richard A.; Scott, Michael J.

2009-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Analysis of a Third-Generation Princeton Tri-leaflet Mechanical Heart Valve  

E-Print Network (OSTI)

Analysis of a Third-Generation Princeton Tri-leaflet Mechanical Heart Valve Michael Hsu Advisor heart valve · Static analysis of leaflet under uniform pressure of 10 MPa Summer Objectives · Find Heart valve disease · Over 5 million affected · Over 225,000 valve- replacement surgeries performed

Petta, Jason

122

How to search resources If you are looking for an article, try  

E-Print Network (OSTI)

or journal title within the library holdings. 3) Search for the source (i.e. journal title) by entering all/any of your search terms. Click `GO'. #12;Browse Search: 1) To browse the catalog clickHow to search resources If you are looking for an article, try: Google Scholar: This search engine

McPhee-Shaw, Erika

123

Lab has a 70th anniversary app-give it a try  

NLE Websites -- All DOE Office Websites (Extended Search)

Jan. 2014 All Issues submit Lab has a 70th anniversary app-give it a try Get it for free through iTunes June 1, 2013 Download the Lab's 70th anniversary app on iTunes for free...

124

Northeast - NY NJ CT PA Area | Open Energy Information  

Open Energy Info (EERE)

Northeast - NY NJ CT PA Area Northeast - NY NJ CT PA Area Jump to: navigation, search Contents 1 Clean Energy Clusters in the Northeast - NY NJ CT PA Area 1.1 Products and Services in the Northeast - NY NJ CT PA Area 1.2 Research and Development Institutions in the Northeast - NY NJ CT PA Area 1.3 Networking Organizations in the Northeast - NY NJ CT PA Area 1.4 Investors and Financial Organizations in the Northeast - NY NJ CT PA Area 1.5 Policy Organizations in the Northeast - NY NJ CT PA Area Clean Energy Clusters in the Northeast - NY NJ CT PA Area Products and Services in the Northeast - NY NJ CT PA Area Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":500,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

125

DOE - Office of Legacy Management -- American Brass Co - CT 01  

Office of Legacy Management (LM)

Brass Co - CT 01 Brass Co - CT 01 FUSRAP Considered Sites Site: American Brass Co (CT.01 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: Anaconda Company Brass Division CT.01-1 Location: 414 Meadow Street , Waterbury , Connecticut CT.01-1 Evaluation Year: 1986 CT.01-2 Site Operations: Limited work with copper clad uranium billets during the 1950s. CT.01-1 Site Disposition: Eliminated - Potential for contamination considered remote based upon the limited scope of activities at the site CT.01-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium CT.01-3 Radiological Survey(s): Yes - health and safety monitoring during operations only CT.01-3 Site Status: Eliminated from consideration under FUSRAP

126

DOE - Office of Legacy Management -- Fenn Machinery Co - CT 11  

Office of Legacy Management (LM)

Fenn Machinery Co - CT 11 Fenn Machinery Co - CT 11 FUSRAP Considered Sites Site: Fenn Machinery Co. (CT.11 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: New Britain , Connecticut CT.11-1 Evaluation Year: 1987 CT.11-1 Site Operations: Performed short-term tests on small quantities of uranium metal to explore potential for swaging, circa mid-1950 CT.11-1 CT.11-3 Site Disposition: Eliminated - Potential for contamination considered remote due to limited scope of activities and relatively small quantities of radioactive material used CT.11-1 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium CT.11-3 Radiological Survey(s): None Indicated Site Status: Eliminated from consideration under FUSRAP CT.11-2

127

Fusarium Tri4 encodes a key multifunctional cytochrome P450 monooxygenase for four consecutive oxygenation steps in trichothecene biosynthesis  

SciTech Connect

Fusarium Tri4 encodes a cytochrome P450 monooxygenase (CYP) for hydroxylation at C-2 of First committed intermediate trichodiene (TDN) in the biosynthesis of trichothecenes. To examine whether this CYP further participates in subsequent oxygenation steps leading to isotrichotriol (4), we engineered Saccharomyces cerevisiae for de novo production of the early intermediates by introducing cDNAs of Fusarium graminearum Tri5 (FgTri5 encoding TDN synthase) and Tri4 (FgTri4). From a culture of the engineered yeast grown on induction medium (final pH 2.7), we identified two intermediates, 2{alpha}-hydroxytrichodiene (1) and 12,13-epoxy-9,10-trichoene-2{alpha}-ol (2), and a small amount of non-Fusarium trichothecene 12,13-epoxytrichothec-9-ene (EPT). Other intermediates isotrichodiol (3) and 4 were identified in the transgenic yeasts grown on phosphate-buffered induction medium (final pH 5.5-6.0). When Trichothecium roseum Tri4 (TrTri4) was used in place of FgTri4, 4 was not detected in the culture. The three intermediates, 1, 2, and 3, were converted to 4,15-diacetylnivalenol (4,15-diANIV) when fed to a toxin-deficient mutant of F. graminearum with the FgTri4 {sup +} genetic background (viz., by introducing a FgTri5 {sup -} mutation), but were not metabolized by an FgTri4 {sup -} mutant. These results provide unambiguous evidence that FgTri4 encodes a multifunctional CYP for epoxidation at C-12,13, hydroxylation at C-11, and hydroxylation at C-3 in addition to hydroxylation at C-2.

Tokai, Takeshi [Plant and Microbial Metabolic Engineering Research Unit, Discovery Research Institute (DRI), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Koshino, Hiroyuki [Molecular Characterization Team, Advanced Development and Supporting Center, Discovery Research Institute (DRI), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Takahashi-Ando, Naoko [Plant and Microbial Metabolic Engineering Research Unit, Discovery Research Institute (DRI), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Sato, Masayuki [Plant and Microbial Metabolic Engineering Research Unit, Discovery Research Institute (DRI), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Faculty of Life Science, Toyo University, 1-1-1 Izumino, Itakura, Gunma 374-0193 (Japan); Fujimura, Makoto [Faculty of Life Science, Toyo University, 1-1-1 Izumino, Itakura, Gunma 374-0193 (Japan); Kimura, Makoto [Plant and Microbial Metabolic Engineering Research Unit, Discovery Research Institute (DRI), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)]. E-mail: mkimura@riken.jp

2007-02-09T23:59:59.000Z

128

DOE - Office of Legacy Management -- Sperry Products Inc - CT 07  

NLE Websites -- All DOE Office Websites (Extended Search)

Sperry Products Inc - CT 07 Sperry Products Inc - CT 07 FUSRAP Considered Sites Site: SPERRY PRODUCTS, INC. (CT.07) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Danbury , Connecticut CT.07-1 Evaluation Year: 1994 CT.07-2 Site Operations: Performed tests involving non-destructive inspection techniques in the 1950s. CT.07-3 Site Disposition: Eliminated - Potential for contamination considered remote based on the limited scope of activities performed at the site CT.07-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium CT.07-3 Radiological Survey(s): No Site Status: Eliminated from consideration under FUSRAP Also see Documents Related to SPERRY PRODUCTS, INC. CT.07-1 - Sperry Products Letter; VanValkenburg to DeRenzis;

129

DOE - Office of Legacy Management -- American Cyanamid Co - CT 13  

NLE Websites -- All DOE Office Websites (Extended Search)

Cyanamid Co - CT 13 Cyanamid Co - CT 13 FUSRAP Considered Sites Site: American Cyanamid Co (CT.13 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Stamford , Connecticut CT.13-1 Evaluation Year: 1987 CT.13-1 Site Operations: Produced boron and possibly handled small amounts of refined radioactive source material circa 1940's. Also possibly performed research work on irradiated "J" slugs in 1952 and 1953. CT.13-1 CT.13-3 Site Disposition: Eliminated - Potential for contamination considered remote due to the limited scope of activities involving radioactive material performed at this site CT.13-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium CT.13-1 Radiological Survey(s): No

130

High Temperature Fuel Cell Tri-Generation of Power, Heat & H2 from Biogas  

NLE Websites -- All DOE Office Websites (Extended Search)

National Fuel Cell Research Center, 2012 1/22 National Fuel Cell Research Center, 2012 1/22 High Temperature Fuel Cell Tri-Generation of Power, Heat & H 2 from Biogas Jack Brouwer, Ph.D. June 19, 2012 DOE/ NREL Biogas Workshop - Golden, CO © National Fuel Cell Research Center, 2012 2/22 Outline * Introduction and Background * Tri-Generation/Poly-Generation Analyses * OCSD Project Introduction © National Fuel Cell Research Center, 2012 3/22 Introduction and Background * Hydrogen fuel cell vehicle performance is outstanding * Energy density of H 2 is much greater than batteries * Rapid fueling, long range ZEV * H 2 must be produced * energy intensive, may have emissions, fossil fuels, economies of scale * Low volumetric energy density of H 2 compared to current infrastructure fuels (@ STP)

131

Tri-Party Repo Infrastructure Reforms Federal Reserve Bank of New York  

E-Print Network (OSTI)

regarding weaknesses in the infrastructure of the tri-party repo market as well as to seek comment on industry recommendations to address these concerns. The FRBNY asked the Payments Risk Committee (PRC)a private-sector group of senior U.S. bank officials that is sponsored by the FRBNYto form a task force to address the weaknesses that became visible over the course of the financial crisis. The PRC responded by creating the Tri-Party Repo Infrastructure Reform Task Force in 2009. The task force is now publishing its recommendations. A key focus of the recommendations is to reduce reliance by market participants on intraday credit provided by tri-party repo agents. Other complementary recommendations are designed to foster improvements to credit and liquidity risk management practices of market participants, enhance market transparency, and decrease the likelihood and mitigate the negative effect of default by a large cash borrower. Feedback received on this white paper from a broad range of stakeholders is intended to help FRBNY staff and others with regulatory and supervisory responsibilities to assess the recommendations

A White

2010-01-01T23:59:59.000Z

132

Auto-DR and Pre-cooling of Buildings at Tri-City Corporate Center  

NLE Websites -- All DOE Office Websites (Extended Search)

Auto-DR and Pre-cooling of Buildings at Tri-City Corporate Center Auto-DR and Pre-cooling of Buildings at Tri-City Corporate Center Title Auto-DR and Pre-cooling of Buildings at Tri-City Corporate Center Publication Type Report LBNL Report Number LBNL-3348e Year of Publication 2008 Authors Yin, Rongxin, Peng Xu, and Sila Kiliccote Keywords auto-dr, building energy simulation tool, demand response, demand shifting (pre-cooling), DRQAT, market sectors, pre-cooling, technologies, testbed tools and guides, thermal mass Abstract Over the several past years, Lawrence Berkeley National Laboratory (LBNL) has conducted field tests for different pre-cooling strategies in different commercial buildings within California. The test results indicated that pre-cooling strategies were effective in reducing electric demand in these buildings during peak periods. This project studied how to optimize pre-cooling strategies for eleven buildings in the Tri-City Corporate Center, San Bernardino, California with the assistance of a building energy simulation tool - the Demand Response Quick Assessment Tool (DRQAT) developed by LBNL's Demand Response Research Center funded by the California Energy Commission's Public Interest Energy Research (PIER) Program. From the simulation results of these eleven buildings, optimal pre-cooling and temperature reset strategies were developed. The study shows that after refining and calibrating initial models with measured data, the accuracy of the models can be greatly improved and the models can be used to predict load reductions for automated demand response (Auto-DR) events. This study summarizes the optimization experience of the procedure to develop and calibrate building models in DRQAT. In order to confirm the actual effect of demand response strategies, the simulation results were compared to the field test data. The results indicated that the optimal demand response strategies worked well for all buildings in the Tri-City Corporate Center. This study also compares DRQAT with other building energy simulation tools (eQUEST and BEST). The comparison indicate that eQUEST and BEST underestimate the actual demand shed of the pre-cooling strategies due to a flaw in DOE2's simulation engine for treating wall thermal mass. DRQAT is a more accurate tool in predicting thermal mass effects of DR events.

133

DOE - Office of Legacy Management -- Wesleyan University - CT 12  

NLE Websites -- All DOE Office Websites (Extended Search)

Wesleyan University - CT 12 Wesleyan University - CT 12 FUSRAP Considered Sites Site: Wesleyan University (CT.12 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Middletown , Connecticut CT.12-1 Evaluation Year: 1995 CT.12-2 Site Operations: Spectrographic research on small quantities of uranium wire (several inches in length) in Physics Department circa late 1950. CT.12-1 Site Disposition: Eliminated - Potential for contamination considered remote due to the limited scope of activities performed CT.12-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium CT.12-1 Radiological Survey(s): No Site Status: Eliminated from consideration under FUSRAP Also see Documents Related to Wesleyan University

134

DOE - Office of Legacy Management -- New Canaan Site - CT 08  

Office of Legacy Management (LM)

Year: 1985 CT.08-2 Site Operations: None; Investigation of area prompted by public query; no site found in New Canaan. CT.08-1 Site Disposition: Eliminated - No AEC site...

135

Numerical study of electron-leakage power loss in a tri-plate transmission line  

SciTech Connect

Numerical simulations have been conducted using NRL's DIODE2D computer code to model the steady-state behavior of electron flow in a radial diode and in its adjacent tri-plate transmission line (TTL). Particular attention was paid to the magnitude of the electron current flowing from the cathode to the anode surface in the TTL. A quantitative value for this effective power loss is given. The electron current is restricted mainly to the transition region in the TTL into which there is seepage of the B/sub z/ that is imposed in the diode gap. This finding highlights the importance of that region to diode designers.

Barker, R.J.; Goldstein, S.A.

1982-06-23T23:59:59.000Z

136

New Developments in TRI{mu}P and RIASH at KVI  

SciTech Connect

The status of the TRI{mu}P facility at KVI is reviewed. Recent results on ion catcher devices are described. A thermo-ionizer for use with alkali and earth-alkali elements is close to completion. Concerning the use of superfluid helium as stopping medium, evidence that second sound pulses can be used to extract ions from the helium surface has been obtained. Based on the observation of highly efficient ion transport in helium, neon and argon gas below about 100 K, we propose the operation of noble gas ion catchers at cryogenic temperatures.

Dendooven, P. [KVI, Zernikelaan 25, 9747 AA Groningen (Netherlands)

2006-04-26T23:59:59.000Z

137

Automated size-specific CT dose monitoring program: Assessing variability in CT dose  

SciTech Connect

Purpose: The potential health risks associated with low levels of ionizing radiation have created a movement in the radiology community to optimize computed tomography (CT) imaging protocols to use the lowest radiation dose possible without compromising the diagnostic usefulness of the images. Despite efforts to use appropriate and consistent radiation doses, studies suggest that a great deal of variability in radiation dose exists both within and between institutions for CT imaging. In this context, the authors have developed an automated size-specific radiation dose monitoring program for CT and used this program to assess variability in size-adjusted effective dose from CT imaging. Methods: The authors radiation dose monitoring program operates on an independent health insurance portability and accountability act compliant dosimetry server. Digital imaging and communication in medicine routing software is used to isolate dose report screen captures and scout images for all incoming CT studies. Effective dose conversion factors (k-factors) are determined based on the protocol and optical character recognition is used to extract the CT dose index and dose-length product. The patient's thickness is obtained by applying an adaptive thresholding algorithm to the scout images and is used to calculate the size-adjusted effective dose (ED{sub adj}). The radiation dose monitoring program was used to collect data on 6351 CT studies from three scanner models (GE Lightspeed Pro 16, GE Lightspeed VCT, and GE Definition CT750 HD) and two institutions over a one-month period and to analyze the variability in ED{sub adj} between scanner models and across institutions. Results: No significant difference was found between computer measurements of patient thickness and observer measurements (p= 0.17), and the average difference between the two methods was less than 4%. Applying the size correction resulted in ED{sub adj} that differed by up to 44% from effective dose estimates that were not adjusted by patient size. Additionally, considerable differences were noted in ED{sub adj} distributions between scanners, with scanners employing iterative reconstruction exhibiting significantly lower ED{sub adj} (range: 9%-64%). Finally, a significant difference (up to 59%) in ED{sub adj} distributions was observed between institutions, indicating the potential for dose reduction. Conclusions: The authors developed a robust automated size-specific radiation dose monitoring program for CT. Using this program, significant differences in ED{sub adj} were observed between scanner models and across institutions. This new dose monitoring program offers a unique tool for improving quality assurance and standardization both within and across institutions.

Christianson, Olav; Li Xiang; Frush, Donald; Samei, Ehsan [Clinical Imaging Physics Group, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 and Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Clinical Imaging Physics Group, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States) and Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Clinical Imaging Physics Group, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States); Department of Physics, Duke University, Durham, North Carolina 27710 (United States); and Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708 (United States)

2012-11-15T23:59:59.000Z

138

Moving beyond intentions and toward the theory of trying: effects of work environment and gender on post-adoption information technology use  

Science Conference Proceedings (OSTI)

Grounded in the theory of trying, this study examines the influence of the work environment and gender on trying to innovate with information technology. The study extends the innovation diffusion literature by offering a theory-driven explanation for ... Keywords: IT use, adoption, autonomy, gender, information technology innovation, infusion of information technology, intentions, overload, stress, technology acceptance model, theory of trying, trying to innovate with information technology

Manju K. Ahuja; Jason Bennett Thatcher

2005-09-01T23:59:59.000Z

139

Tri-County Elec Member Corp (North Carolina) | Open Energy Information  

Open Energy Info (EERE)

Carolina) Carolina) Jump to: navigation, search Name Tri-County Elec Member Corp Place North Carolina Utility Id 18957 Utility Location Yes Ownership C NERC Location SERC NERC SERC Yes ISO Other Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Demand from 51 kW to 1,000 kW or kWh greater than 15,000 Commercial Demand of 1000 kW or greater Industrial General Power Rate 50 kW & >15,000 Commercial Green Power Switch Residential Rate Schedule Residential Average Rates Residential: $0.0987/kWh Commercial: $0.0925/kWh Industrial: $0.0623/kWh

140

Tri-State G & T Assn, Inc | Open Energy Information  

Open Energy Info (EERE)

Assn, Inc Assn, Inc Jump to: navigation, search Name Tri-State G & T Assn, Inc Place Colorado Utility Id 30151 Utility Location Yes Ownership C NERC Location WECC NERC WECC Yes ISO Other Yes Operates Generating Plant Yes Activity Generation Yes Activity Transmission Yes Activity Buying Transmission Yes Activity Wholesale Marketing Yes Alt Fuel Vehicle Yes Alt Fuel Vehicle2 Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png No rate schedules available. Average Rates No Rates Available References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a"

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Frostbite Theater - Experiments You Can Try at Home! - Measure the Width of  

NLE Websites -- All DOE Office Websites (Extended Search)

Measure the Speed of Light - With Chocolate! Measure the Speed of Light - With Chocolate! Previous Video (Measure the Speed of Light - With Chocolate!) Frostbite Theater Main Index Next Video (Light is a Particle!) Light is a Particle! Measure the Width of a Hair - With a Laser! Exactly how small is a hair's breadth? Measure it for yourself with nothing more than a laser pointer and a tape measure! [ Show Transcript ] Announcer: Frostbite Theater presents... Cold Cuts! No baloney! Joanna and Steve: Just science! Joanna: Hi! I'm Joanna! Steve: And I'm Steve! Joanna: If you have a laser pointer, and you know how to use it safely, try this. Take a hair, perhaps from a coworker, and tape it in a cardboard frame. Place it a few meters away from the wall and shine the laser through it, making sure that the laser hits the hair.

142

Tri-City Herald OpEd: Electric Vehicles are a smart choice  

SciTech Connect

Why are so many of us at the Pacific Northwest National Laboratory, a national thought leader in power industry issues located right here in the Tri-Cities, so bullish on the future of EVs? And why do we think it's so important that this country, especially THIS part of the country, be leaders in the adoption of EVs? Is it that we all just happen to like driving polluting golf carts? The answer is that, like most everyone else, most of us here at PNNL drive to work every day, and like most people, we care about the cost of gasoline and the impact that burning imported oil has on the environment and on our foreign policy. The reality is that electric vehicles are simply more efficient, pollute much less, use locally-generated energy, and cost MUCH less to drive.

Christensen, Peter C.; Haas, Anne M.

2010-12-10T23:59:59.000Z

143

Tri-State Generation and Transmission Association's Springverville unit 3 earns POWER's highest honor  

Science Conference Proceedings (OSTI)

It is said that pioneers take the arrows. In the case of Springerville Unit 3 - a 418 MW(net) expansion of a Tucson Electric Power facility in Arizona and the first pulverized coal-fired units built in the US in more than decade, the arrows were many. Although Tri-State (the developer), Tuscon Electric (the host), and Bechtel Power (the EPC contractor) were wounded by delayed deliveries of major equipment, bankruptcy of a major supplier, and a labor shortage, the companies showed their pioneering spirit and completed the project ahead of schedule. For ushering in a new generation of clean and desperately needed baseload capacity, Springerville Unit 3 is POWER magazine's 2006 Plant of the Year. 9 figs.

Peltier, R.

2006-09-15T23:59:59.000Z

144

Auto-DR and Pre-cooling of Buildings at Tri-City Corporate Center  

SciTech Connect

Over the several past years, Lawrence Berkeley National Laboratory (LBNL) has conducted field tests for different pre-cooling strategies in different commercial buildings within California. The test results indicated that pre-cooling strategies were effective in reducing electric demand in these buildings during peak periods. This project studied how to optimize pre-cooling strategies for eleven buildings in the Tri-City Corporate Center, San Bernardino, California with the assistance of a building energy simulation tool -- the Demand Response Quick Assessment Tool (DRQAT) developed by LBNL's Demand Response Research Center funded by the California Energy Commission's Public Interest Energy Research (PIER) Program. From the simulation results of these eleven buildings, optimal pre-cooling and temperature reset strategies were developed. The study shows that after refining and calibrating initial models with measured data, the accuracy of the models can be greatly improved and the models can be used to predict load reductions for automated demand response (Auto-DR) events. This study summarizes the optimization experience of the procedure to develop and calibrate building models in DRQAT. In order to confirm the actual effect of demand response strategies, the simulation results were compared to the field test data. The results indicated that the optimal demand response strategies worked well for all buildings in the Tri-City Corporate Center. This study also compares DRQAT with other building energy simulation tools (eQUEST and BEST). The comparison indicate that eQUEST and BEST underestimate the actual demand shed of the pre-cooling strategies due to a flaw in DOE2's simulation engine for treating wall thermal mass. DRQAT is a more accurate tool in predicting thermal mass effects of DR events.

Yin, Rongxin; Xu, Peng; Kiliccote, Sila

2008-11-01T23:59:59.000Z

145

CT-121_cover.p65  

NLE Websites -- All DOE Office Websites (Extended Search)

INNOVATIVE APPLICATIONS INNOVATIVE APPLICATIONS OF TECHNOLOGY FOR THE CT-121 FGD PROCESS PROJECT PERFORMANCE SUMMARY CLEAN COAL TECHNOLOGY DEMONSTRATION PROGRAM AUGUST 2002 SOUTHERN COMPANY SERVICES, INC. DOE/FE-0449 Disclaimer This report was prepared using publicly available information, including the Final Technical Report and other reports prepared pursuant to a cooperative agreement partially funded by the U.S. Department of Energy. Neither the United States Government nor any agency, employee, contractor, or representative thereof, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe upon privately

146

Computed Tomography (CT) Scanning For Petrophysical Applications  

NLE Websites -- All DOE Office Websites (Extended Search)

R&D Fac R&D Fac ts Carbon Sequestration ContaCtS David Wildman Division Director Geosciences Division National Energy Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236 412-386-4913 david.wildman@netl.doe.gov T. Robert McLendon Geosciences Division National Energy Technology Laboratory 3610 Collins Ferry Road P.O. Box 880 Morgantown, WV 26507 304-285-2008 t.mclen@netl.doe.gov Duane H. Smith Geosciences Division

147

CT detection of occult pneumothorax in head trauma  

SciTech Connect

A prospective evaluation for occult pneumothorax was performed in 25 consecutive patients with serious head trauma by combining a limited chest CT examination with the emergency head CT examination. Of 21 pneuomothoraces present in 15 patients, 11 (52%) were found only by chest CT and were not identified clinically or by supine chest radiograph. Because of pending therapeutic measures, chest tubes were placed in nine of the 11 occult pneumothoraces, regardless of the volume. Chest CT proved itself as the most sensitive method for detection of occult pneumothorax, permitting early chest tube placement to prevent transition to a tension pneumothorax during subsequent mechanical ventilation or emergency surgery under general anesthesia.

Tocino, I.M.; Miller, M.H.; Frederick, P.R.; Bahr, A.L.; Thomas, F.

1984-11-01T23:59:59.000Z

148

Table CT1. Energy Consumption Estimates for Major Energy Sources ...  

U.S. Energy Information Administration (EIA)

R A D O. U.S. Energy Information Administration State Energy Data 2011: Consumption 89 Table CT6. Industrial Sector Energy Consumption Estimates, Selected Years, 1960 ...

149

Simultaneous CT and SPECT tomography using CZT detectors - Energy ...  

A method for simultaneous transmission x-ray computed tomography (CT) and single photon emission tomography (SPECT) comprises the steps of: injecting a subject with a ...

150

Table CT1. Energy Consumption Estimates for Major Energy ...  

U.S. Energy Information Administration (EIA)

U.S. Energy Information Administration State Energy Data 2011: Consumption 365 Table CT2. Primary Energy Consumption Estimates, Selected Years, 1960-2011, North ...

151

CT reconstruction from limited projection angles  

SciTech Connect

When the available CT projection data are incomplete, there exists a null space in the space of possible reconstructions about which the data provide no information. Deterministic CT reconstructions are impotent in regard to this null space. Furthermore, it is shown that consistency conditions based on projection moments do not provide the missing projections. When the projection data consist of a set of parallel projections that do not encompass a complete 180/sup 0/ rotation, the null space corresponds to a missing sector in the Fourier transform of the original 2-D function. The long-range streak artifacts created by the missing sector can be reduced by attenuating the Fourier transform of the reconstruction smoothly to zero at the sector boundary. It is shown that the Fourier transform of a reconstruction obtained under a maximum entropy constraint is nearly zero in the missing sector. Hence, maximum entropy does not overcome the basic lack of information. It is suggested that some portion of the null space might be filled in by use of a priori knowledge of the type of image expected.

Hanson, K.M.

1982-01-01T23:59:59.000Z

152

Piecewise structural diffusion defined on shape index for noise reduction in dual-energy CT images  

Science Conference Proceedings (OSTI)

The increasing radiation dose in dual-energy CT (DE-CT) scanning due to the double exposures at 80 kVp and 140 kVp is a major concern in the application of DE-CT. This paper presents a novel image-space denoising method, called piecewise structural ... Keywords: dual-energy CT, dual-energy CT colonography, noise reduction

Wenli Cai; June-Goo Lee; Da Zhang; Christina Piel; Hiroyuki Yoshida

2012-10-01T23:59:59.000Z

153

Land Release Estimating and Record-Keeping TRI at Power Plants (LARK-TRIPP) RY2009 Version 1.0  

Science Conference Proceedings (OSTI)

LARK-TRIPP estimates emissions of chemicals from power plants to air, water, and land to support annual reporting under the U.S. EPA Toxics Release Inventory (TRI) program. LARK-TRIPP is a powerful, user-friendly tool for estimating, tracking, and reporting releases of chemicals primarily trace substances from fossil-fired steam electric plants. The spreadsheet-like tool has been applied by numerous energy companies to increase the efficiency and reduce the costs of TRI-related analyses while enhancing c...

2010-04-26T23:59:59.000Z

154

Frostbite Theater - Experiments You Can Try at Home! - Light is a Particle!  

NLE Websites -- All DOE Office Websites (Extended Search)

Measure the Width of a Hair - With a Laser! Measure the Width of a Hair - With a Laser! Previous Video (Measure the Width of a Hair - With a Laser!) Frostbite Theater Main Index Next Video (Let's Measure the Diameter of the Sun!) Let's Measure the Diameter of the Sun! Light is a Particle! Do you have a laser? Do you have a roll of duct tape that's a really, really bright pink? If so, you can explore the exciting world of quantum physics by demonstrating the particle nature of light! [ Show Transcript ] Announcer: Frostbite Theater presents... Cold Cuts! No baloney! Joanna and Steve: Just science! Joanna: Hi! I'm Joanna! Steve: And I'm Steve! Joanna: If you have a laser, and you know how to use it safely, try this. Find something that's really bright pink and shine the laser on it. If you use a red laser, you'll get a red dot, just like you'd might expect.

155

Molecular Dynamics Simulation of Tri-n-Butyl-Phophate Liquid: A Force Field Comparative Study  

SciTech Connect

Molecular dynamics (MD) simulations were conducted to compare the performance of four force fields in predicting thermophysical properties of tri-n-butyl-phosphate (TBP) in the liquid phase. The intramolecular force parameters used were from the Assisted Model Building with Energy Refinement (AMBER) force field model. The van der Waals parameters were based on either the AMBER or the Optimized Potential for Liquid Simulation (OPLS) force fields. The atomic partial charges were either assigned by performing quantum chemistry calculations or utilized previously published data, and were scaled to approximate the average experimental value of the electric dipole moment. Canonical ensemble computations based on the aforementioned parameters were performed near the atmospheric pressure and temperature to obtain the electric dipole moment, mass density, and self-diffusion coefficient. In addition, the microscopic structure of the liquid was characterized via pair correlation functions between selected atoms. It has been demonstrated that the electric dipole moment can be approximated within 1% of the average experimental value by virtue of scaled atomic partial charges. The liquid mass density can be predicted within 0.5-1% of its experimentally determined value when using the corresponding charge scaling. However, in all cases the predicted self- diffusion coefficient is significantly smaller than a commonly quoted experimental measurement; this result is qualified by the fact that the uncertainty of the experimental value was not available.

Cui, Shengting [ORNL; de Almeida, Valmor F [ORNL; Hay, Benjamin [ORNL; Ye, Xianggui [ORNL; Khomami, Bamin [ORNL

2012-01-01T23:59:59.000Z

156

Weather data for simplified energy calculation methods. Volume III. Western United States: TRY data  

DOE Green Energy (OSTI)

The objective is to provide a source of weather data for direct use with a number of simplified energy calculation methods available today. Complete weather data for a number of cities in the United States are provided for use in the following methods: degree hour, modified degree hour, bin, modified bin, and variable degree day. This report contains sets of weather data for 24 cities in the continental United States using Test Reference Year (TRY) source weather data. The weather data at each city has been summarized in a number of ways to provide differing levels of detail necessary for alternative simplified energy calculation methods. Weather variables summarized include dry bulb and wet bulb temperature, percent relative humidity, humidity ratio, wind speed, percent possible sunshine, percent diffuse solar radiation, total solar radiation on horizontal and vertical surfaces, and solar heat gain through standard DSA glass. Monthly and annual summaries, in some cases by time of day, are available. These summaries are produced in a series of nine computer generated tables.

Olsen, A.R.; Moreno, S.; Deringer, J.; Watson, C.R.

1984-08-01T23:59:59.000Z

157

Deviations from Tri-Bimaximal Neutrino Mixing Using Type II Seesaw  

E-Print Network (OSTI)

We study the possibility of generating deviations from tri-bimaximal (TBM) neutrino mixing to explain the non-zero reactor mixing angle within the framework of both type I and type II seesaw mechanisms. The type I seesaw term gives rise to the $\\mu-\\tau$ symmetric TBM pattern of neutrino mass matrix as predicted by generic flavor symmetry models like $A_4$ whereas the type II seesaw term gives rise to the required deviations from TBM pattern to explain the non-zero $\\theta_{13}$. Considering extremal values of Majorana CP phases such that the neutrino mass eigenvalues have the structure $(m_1, -m_2, m_3)$ and $(m_1, m_2, m_3)$, we numerically fit the type I seesaw term by taking oscillation as well as cosmology data and then compute the predictions for neutrino parameters after the type II seesaw term is introduced. We consider a minimal structure of the type II seesaw term and check whether the predictions for neutrino parameters lie in the $3\\sigma$ range. We also outline two possible flavor symmetry models to justify the minimal structure of the type II seesaw term considered in the analysis.

Debasish Borah

2013-07-09T23:59:59.000Z

158

Initiation Temperature for Runaway Tri-n-Butyl Phosphate/Nitric Acid Reaction  

Science Conference Proceedings (OSTI)

During a review of the H-Canyon authorization basis, Defense Nuclear Facility Safety Board (DNFSB) staff members questioned the margin of safety associated with a postulated tri-n-butyl phosphate (TBP)/nitric acid runaway reaction due to the inadvertent heating of a canyon tank containing greater than 3000 lbs (1362 kg) of TBP. The margin of safety was partially based on experiments and calculations performed by the Actinide Technology Section (ATS) to support deletion of indication of tank agitation as a Safety Class System. In the technical basis for deletion of this system, ATS personnel conservatively calculated the equilibrium temperature distribution of a canyon tank containing TBP and nitric acid layers which were inadvertently heated by a steam jet left on following a transfer. The maximum calculated temperature (128 degrees C) was compared to the minimum initiation temperature for a runaway reaction (greater than 130 degrees C) documented by experimental work in the mid 195 0s. In this work, the initiation temperature as a function of nitric acid concentration was measured for 0 and 20 wt percent dissolved solids. The DNFSB staff members were concerned that data for 0 wt percent dissolved solids were not conservative given the facts that data for 20 wt percent dissolved solids show initiation temperatures at or below 130 degrees C and H-Canyon solutions normally contained a small amount of dissolved solids.

Rudisill, T.S.

2000-11-28T23:59:59.000Z

159

Weather data for simplified energy calculation methods. Volume I. Eastern United States: TRY data  

DOE Green Energy (OSTI)

The objective of this report is to provide a source of weather data for direct use with a number of simplified energy calculation methods available today. Complete weather data for a number of cities in the United States are provided for use in the following methods: degree hour, modified degree hour, bin, modified bin, and variable degree day. This report contains sets of weather data for 23 cities in the continental United States using Test Reference Year (TRY) source weather data. The weather data at each city has been summarized in a number of ways to provide differing levels of detail necessary for alternative simplified energy calculation methods. Weather variables summarized include dry bulb and wet bulb temperature, percent relative humidity, humidity ratio, wind speed, percent possible sunshine, percent diffuse solar radiation, total solar radiation on horizontal and vertical surfaces, and solar heat gain through standard DSA glass. Monthly and annual summaries, in some cases by time of day, are available. These summaries are produced in a series of nine computer generated tables.

Olsen, A.R.; Moreno, S.; Deringer, J.; Watson, C.R.

1984-08-01T23:59:59.000Z

160

Weather data for simplified energy calculation methods. Volume II. Middle United States: TRY data  

DOE Green Energy (OSTI)

The objective of this report is to provide a source of weather data for direct use with a number of simplified energy calculation methods available today. Complete weather data for a number of cities in the United States are provided for use in the following methods: degree hour, modified degree hour, bin, modified bin, and variable degree day. This report contains sets of weather data for 22 cities in the continental United States using Test Reference Year (TRY) source weather data. The weather data at each city has been summarized in a number of ways to provide differing levels of detail necessary for alternative simplified energy calculation methods. Weather variables summarized include dry bulb and wet bulb temperature, percent relative humidity, humidity ratio, wind speed, percent possible sunshine, percent diffuse solar radiation, total solar radiation on horizontal and vertical surfaces, and solar heat gain through standard DSA glass. Monthly and annual summaries, in some cases by time of day, are available. These summaries are produced in a series of nine computer generated tables.

Olsen, A.R.; Moreno, S.; Deringer, J.; Watson, C.R.

1984-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Resonant Enhancement of Charge Density Wave Diffraction in the Rare-Earth Tri-Tellurides  

SciTech Connect

We performed resonant soft X-ray diffraction on known charge density wave (CDW) compounds, rare earth tri-tellurides. Near the M{sub 5} (3d - 4f) absorption edge of rare earth ions, an intense diffraction peak is detected at a wavevector identical to that of CDW state hosted on Te{sub 2} planes, indicating a CDW-induced modulation on the rare earth ions. Surprisingly, the temperature dependence of the diffraction peak intensity demonstrates an exponential increase at low temperatures, vastly different than that of the CDW order parameter. Assuming 4f multiplet splitting due to the CDW states, we present a model to calculate X-ray absorption spectrum and resonant profile of the diffraction peak, agreeing well with experimental observations. Our results demonstrate a situation where the temperature dependence of resonant X-ray diffraction peak intensity is not directly related to the intrinsic behavior of the order parameter associated with the electronic order, but is dominated by the thermal occupancy of the valence states.

Lee, W.S.; Sorini, A.P.; Yi, M.; Chuang, Y.D.; Moritz, B.; Yang, W.L.; Chu, J.-H.; Kuo, H.H.; Gonzalez, A.G.Cruz; Fisher, I.R.; Hussain, Z.; Devereau, T.P.; Shen, Z.X.

2012-05-15T23:59:59.000Z

162

Physics around the QCD (tri)critical endpoint and new challenges for femtoscopy  

E-Print Network (OSTI)

On the basis of exactly solvable models with the tricritical and critical endpoints I discuss the physical mechanism of endpoints formation which is similar to the usual liquids. It is demonstrated that the necessary condition for the transformation of the 1-st order deconfinement phase transition into the 2-nd order phase transition at the (tri)critical endpoint is the vanishing of surface tension coefficient of large/heavy QGP bags. Using the novel model of the confinement phenomenon I argue that the physical reason for the cross-over appearance at low baryonic densities is the negative value of QGP bag surface tension coefficient. This implies the existence of highly non-spherical or, probably, even fractal surfaces of large and heavy bags at and above the cross-over, which, perhaps, can be observed via some correlations. The model with the tricritical endpoint predicts that at the deconfinement transition line the volume (mass) distribution of large (heavy) QGP bags acquires the power law form at the endpoint only, while in the model with the critical endpoint such a power law exists inside the mixed phase. The role of finite width of QGP bags is also discussed.

K. A. Bugaev

2011-01-14T23:59:59.000Z

163

Electronic cleansing in CT colonography: past, present, and future  

Science Conference Proceedings (OSTI)

Fecal tagging is a means of marking' fecal residues (stool and fluid) in a colon by use of the oral administration of a positive contrast agent (barium or iodine) in CT Colonography (CTC). Electronic cleansing (EC) is an emerging technique for ... Keywords: CT colonography, bowel preparation, electronic cleansing, fecal tagging

Wenli Cai; Hiroyuki Yoshida

2010-09-01T23:59:59.000Z

164

MicroCT: Automated Analysis of CT Reconstructed Data of Home Made Explosive Materials Using the Matlab MicroCT Analysis GUI  

SciTech Connect

This Standard Operating Procedure (SOP) provides the specific procedural steps for analyzing reconstructed CT images obtained under the IDD Standard Operating Procedures for data acquisition [1] and MicroCT image reconstruction [2], per the IDD Quality Assurance Plan for MicroCT Scanning [3]. Although intended to apply primarily to MicroCT data acquired in the HEAFCAT Facility at LLNL, these procedures may also be applied to data acquired at Tyndall from the YXLON cabinet and at TSL from the HEXCAT system. This SOP also provides the procedural steps for preparing the tables and graphs to be used in the reporting of analytical results. This SOP applies to production work - for R and D there are two other semi-automated methods as given in [4, 5].

Seetho, I M; Brown, W D; Kallman, J S; Martz, H E; White, W T

2011-09-22T23:59:59.000Z

165

MicroCT: Semi-Automated Analysis of CT Reconstructed Data of Home Made Explosive Materials Using the Matlab MicroCT Analysis GUI  

SciTech Connect

This Standard Operating Procedure (SOP) provides the specific procedural steps for analyzing reconstructed CT images obtained under the IDD Standard Operating Procedures for data acquisition [1] and MicroCT image reconstruction [2], per the IDD Quality Assurance Plan for MicroCT Scanning [3]. Although intended to apply primarily to MicroCT data acquired in the HEAFCAT Facility at LLNL, these procedures may also be applied to data acquired at Tyndall from the YXLON cabinet and at TSL from the HEXCAT system. This SOP also provides the procedural steps for preparing the tables and graphs to be used in the reporting of analytical results. This SOP applies to R and D work - for production applications, use [4].

Seetho, I M; Brown, W D; Kallman, J S; Martz, H E; White, W T

2011-09-22T23:59:59.000Z

166

Former Worker Program - Low-Dose Spiral CT Scans for Early Lung...  

NLE Websites -- All DOE Office Websites (Extended Search)

of radiation emitted during CT scans. Chest CT, in general, requires less radiation exposure than other CT procedures because the air-filled tissues of the lungs are not as dense...

167

CT Solar Loan | Open Energy Information  

Open Energy Info (EERE)

Solar Loan Solar Loan No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Summary Last modified on March 29, 2013. Financial Incentive Program Place Connecticut Name CT Solar Loan Incentive Type State Loan Program Applicable Sector Multi-Family Residential, Residential Eligible Technologies Photovoltaics Active Incentive Yes Implementing Sector State/Territory Energy Category Renewable Energy Incentive Programs Terms 15 years Program Administrator The Clean Energy Finance and Investment Authority Website http://www.energizect.com/residents/programs/ctsolarloan Last DSIRE Review 03/29/2013 References Database of State Incentives for Renewables and Efficiency[1] Summary The Clean Energy Finance and Investment Authority is offering a pilot loan

168

Microsoft Word - Ct121R1.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

Innovative Applications Innovative Applications of Technology for the CT-121 FGD Process A DOE Assessment DOE/NETL-2002/1177 September 2002 U.S. Department of Energy National Energy Technology Laboratory P.O. Box 880, 3610 Collins Ferry Road Morgantown, WV 26507-0880 P.O. Box 10940, 626 Cochrans Mill Road Pittsburgh, PA 15236-0940 West Third Street, Suite 1400 Tulsa, OK 74103-3519 website: www.netl.doe.gov 2 Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents

169

CT113-53 Cape Wind Report_  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

M M Report of the Effect on Radar Performance of the Proposed Cape Wind Project and Advance Copy of USCG Findings and Mitigation U.S. Department of the Interior Minerals Management Service MMS Cape Wind Energy Project January 2009 Final EIS Appendix M Report of the Effect on Radar Performance of the Proposed Cape Wind Project and Advance Copy of USCG Findings and Mitigation Technology Service Corporation an employee-owned company 55 Corporate Drive 3rd Floor, Trumbull, Connecticut 06611 Phone: (203) 268-1249 Fax: (203) 452-0260 www.tsc.com Ref: TSC-CT113-53 Report of the Effect on Radar Performance of the Proposed Cape Wind Project Submitted to the United States Coast Guard December 16, 2008 USCG Order #HSCG24-08-F-16A248

170

Tri (2-chloroisopropyl) phosphate--an unexpected organochlorine contaminant in some charcoal air-sampling sorbent tubes  

SciTech Connect

Air sampling in a government building was necessary in response to reports of a cancer cluster. SKC (Eighty Four, Pa.) charcoal coconut shell-based sorbent tubes (226-01 lot 120) were recommended for this procedure. A recently purchased supply was present at the University of British Columbia and consequently was used for this particular study. Analysis of the front charcoal section showed the presence of a flame retardant, tri (2-chloroisopropyl) phosphate, which was confirmed by gas liquid chromatography (GLC) and mass spectrometry analysis. In an effort to identify the source of this fire retardant in the building, it became apparent from the analysis done on unknown field blanks that tri (2-chloroisopropyl) phosphate was a contaminant of the sorbent tubes used. Analysis of additional blank tubes identified the foam separators as the most likely source of contamination. Levels of tri (2-chloroisopropyl) phosphate in the front charcoal section ranged from 1.3 to 5.9 micrograms. The foam separator contained between 11.4 and 16.5 micrograms, and the backup charcoal section contained between 14.5 and 24.0 micrograms of tri (2-chloroisopropyl) phosphate. In addition, another flame retardant, tri (1,3 dichloro-2-propyl) phosphate was also found. Because these contaminants have long column retention times in GLC, it may not be apparent that these contaminants are present and consequently are likely to have modified the sorbent characteristics of the activated charcoal. Another batch of sorbent tubes bearing the same catalog number and lot number was purchased from the supplier; no flame retardants were found in this batch.

van Netten, C.; Brands, R.; Park, J.; Deverall, R. (Department of Health Care and Epidemiology, University of British Columbia, Vancouver, (Canada))

1991-09-01T23:59:59.000Z

171

Tri-State Synfuels Project Review: Volume 12. Fluor project status. [Proposed Henderson, Kentucky coal to gasoline plant; engineering  

DOE Green Energy (OSTI)

The purpose of this report is to document and summarize activities associated with Fluor's efforts on the Tri-State Synfuels Project. The proposed facility was to be coal-to-transport fuels facility located in Henderson, Kentucky. Tri-State Synfuels Company was participating in the project as a partner of the US Department of Energy per terms of a Cooperative Agreement resulting from DOE's synfuel's program solicitation. Fluor's initial work plan called for preliminary engineering and procurement services to the point of commitment for construction for a Sasol Fischer-Tropsch plant. Work proceeded as planned until October 1981 when results of alternative coal-to-methanol studies revealed the economic disadvantage of the Synthol design for US markets. A number of alternative process studies followed to determine the best process configuration. In January 1982 Tri-State officially announced a change from Synthol to a Methanol to Gasoline (MTG) design basis. Further evaluation and cost estimates for the MTG facility eventually led to the conclusion that, given the depressed economic outlook for alternative fuels development, the project should be terminated. Official announcement of cancellation was made on April 13, 1982. At the time of project cancellation, Fluor had completed significant portions of the preliminary engineering effort. Included in this report are descriptions and summaries of Fluor's work during this project. In addition location of key project data and materials is identified and status reports for each operation are presented.

Not Available

1982-06-01T23:59:59.000Z

172

DOE - Office of Legacy Management -- Dorr Corp - CT 14  

Office of Legacy Management (LM)

to D. Arnold; Subject: Description of work and associated costs for tests; October 19, 1954 CT.14-2 - US NRC Letter; R. Bellamy to J. Russo; Subject: NRC Safety Inspection and...

173

Composite structure development decisions using X-ray CT measurements  

Science Conference Proceedings (OSTI)

X-ray computed tomography (CT) provides measurement data useful for making composite manufacturing development decisions. X-ray CT measurements of material characteristics are quantitative in terms of the dimensions, density, and composition. The CT data on internal conditions, such as consolidation, gaps, delaminations, cracks, porosity and detail placement can be applied to the refinement of production techniques for composite manufacture. The key item of interest is the effect of variations in pressure loading, temperature, mold shape, material surface preparation, and bond layer thickness on the resulting consolidation or bondline quality in new composite manufacturing processes. X-ray CT measurements of densification and defect presence as a function of technique parameters are of critical importance to processes such as resin transfer molding, injection molding, composite welding, composite layup and advanced bonding methods.

Bossi, R.H.; Georgeson, G.E. [Boeing Defense and Space Group, Seattle, WA (United States)

1995-10-01T23:59:59.000Z

174

Microsoft Word - CT for NETL Final rev4.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

Display 32 Fig. 25. Sensor Side of 64-Element Array 33 Fig. 26. Integral Surface Mount Support Electronics 33 Fig. 27. Screen Shot of 64-Element Display 34 Fig. 28. 16-Element CT...

175

Supervised probabilistic segmentation of pulmonary nodules in CT scans  

Science Conference Proceedings (OSTI)

An automatic method for lung nodule segmentation from computed tomography (CT) data is presented that is different from previous work in several respects. Firstly, it is supervised; it learns how to obtain a reliable segmentation from examples in a training ...

Bram van Ginneken

2006-10-01T23:59:59.000Z

176

Segmentation of airway trees from multislice CT using fuzzy logic  

Science Conference Proceedings (OSTI)

The segmentation and reconstruction of the human airway tree from volumetric computed tomography (CT) images facilitates many clinical applications and physiological investigations. The main problem with standard automated region-growing segmentation ...

Tan Kok Liang; Toshiyuki Tanaka; Hidetoshi Nakamura; Toru Shirahata; Hiroaki Sugiura

2009-11-01T23:59:59.000Z

177

DOE - Office of Legacy Management -- Olin Mathieson - CT 0-02  

Office of Legacy Management (LM)

Olin Mathieson - CT 0-02 Olin Mathieson - CT 0-02 FUSRAP Considered Sites Site: OLIN MATHIESON (CT.0-02 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: United Nuclear Corporation CT.0-02-1 Location: New Haven , Connecticut CT.0-02-1 Evaluation Year: 1987 CT.0-02-1 Site Operations: Began fabrication of nuclear reactor fuel elements for AEC circa late-1950s. Later became part of a group forming United Nuclear Corp. and were then licensed by AEC. Performed work for U.S. Navy and commercial applications. CT.0-02-1 Site Disposition: Eliminated - No Authority - AEC licensed CT.0-02-1 Radioactive Materials Handled: Yes CT.0-02-1 Primary Radioactive Materials Handled: Uranium CT.0-02-1 Radiological Survey(s): None Indicated

178

Electric household equipment and electric fuel usage in the Tri-State Region and the United States: 1960-70. Working paper  

SciTech Connect

The possible impact of areawide residential location policy on future residential electricity usage in the Tri-State Metropolitan Region centering on New York City is investigated. This report is concerned with selected residential electric appliance usage in the Tri-State Region as compared with usage of these appliances across the United States between 1960 and 1970. Included are tabular representations of comparisons between residential air conditioner usage in the Tri-State Region and the United States. Tabular comparisons also are made with respect to residential appliance usage and electric fuel usage.

Hillman, B.

1973-08-01T23:59:59.000Z

179

White Paper on Ion Beam Transport for ICF: Issues, R&D Need,and Tri-Lab Plans  

Science Conference Proceedings (OSTI)

To date, most resources for ion beam fusion have been devoted to development of accelerators and target physics; relatively few resources have gone into ion beam transport development. Because of theoretical studies and substantial experience with electron beam transport, the ion beam transport community is now poised to develop and optimize ion beam transport for ICF. Because of this Tri-Lab effort, a path for coordinated development of ion beam transport has been established. The rate of progress along this path will now be determined largely by the availability of resources.

Olson, C.; Lee, E.; Langdon, B.

2005-05-04T23:59:59.000Z

180

Driving conditions dependence of magneto-electroluminescence in tri-(8-hydroxyquinoline)-aluminum based organic light emitting diodes  

E-Print Network (OSTI)

we investigated the magneto-electroluminescence (MEL) in tri-(8-hydroxyquinoline)-aluminum based organic light-emitting diodes (OLEDs) through the steady-state and transient method simultaneously. The MELs show the great different behaviors when we turn the driving condition from a constant voltage to a pulse voltage. For devices driven by the constant voltage, the MELs are similar with the literature data; for devices driven by the pulse voltage, the MELs are quite different, they firstly increase to a maximum then decrease as the magnetic field increases continuously. Negative MELs can be seen when both the magnetic field and driving voltage are high enough.

Peng, Qiming; Li, Xianjie; Li, Mingliang; Li, Feng

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Low-Dose Spiral CT Scans for Early Lung Cancer Detection | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Low-Dose Spiral CT Scans for Early Lung Cancer Detection Low-Dose Spiral CT Scans for Early Lung Cancer Detection Low-Dose Spiral CT Scans for Early Lung Cancer Detection Low-dose spiral computed tomography (CT) scanning is a noninvasive medical imaging test that has been used for the early detection of lung cancer for over 16 years (Sone et al. 1998; Henschke et.al. 1999). A low-dose spiral chest CT differs from a full-dose conventional chest CT scan primarily in the amount of radiation emitted during CT scans. Chest CT, in general, requires less radiation exposure than other CT procedures because the air-filled tissues of the lungs are not as dense as the tissues of other organs (i.e., less x-ray radiation is needed to penetrate the lung). Radiation dose can be further reduced with lung cancer screening due to the

182

A Compact Torus Fusion Reactor Utilizing a Continuously Generated Strings of CT's. The CT String Reactor, CTSR.  

Science Conference Proceedings (OSTI)

A fusion reactor is described in which a moving string of mutually repelling compact toruses (alternating helicity, unidirectional Btheta) is generated by repetitive injection using a magnetized coaxial gun driven by continuous gun current with alternating poloidal field. An injected CT relaxes to a minimum magnetic energy equilibrium, moves into a compression cone, and enters a conducting cylinder where the plasma is heated to fusion-producing temperature. The CT then passes into a blanketed region where fusion energy is produced and, on emergence from the fusion region, the CT undergoes controlled expansion in an exit cone where an alternating poloidal field opens the flux surfaces to directly recover the CT magnetic energy as current which is returned to the formation gun. The CT String Reactor (CTSTR) reactor satisfies all the necessary MHD stability requirements and is based on extrapolation of experimentally achieved formation, stability, and plasma confinement. It is supported by extensive 2D, MHD calculations. CTSTR employs minimal external fields supplied by normal conductors, and can produce high fusion power density with uniform wall loading. The geometric simplicity of CTSTR acts to minimize initial and maintenance costs, including periodic replacement of the reactor first wall.

Hartman, C W; Reisman, D B; McLean, H S; Thomas, J

2007-05-30T23:59:59.000Z

183

NANO AT HOME: An Experiment That You Can Try PLEASE NOTE: The Center for Nano-and Molecular Science and Technology (CNM) at The  

E-Print Network (OSTI)

NANO AT HOME: An Experiment That You Can Try PLEASE NOTE: The Center for Nano- and Molecular for Nano: A Cubic Foot of Air The production of many nanoscale devices requires a very clean environment

Ben-Yakar, Adela

184

EA-1915: Conveyance of Approximately 1,641 Acres of Unimproved Land to the Tri-City Development Council, the Local Community Reuse Organization, Richland, WA  

Energy.gov (U.S. Department of Energy (DOE))

This EA will evaluate the environmental impacts of conveyance of approximately 1,641 acres of unimproved land at DOEs Hanford Site, Richland, Washington to the Tri-City Development Council (TRIDEC), the local community reuse organization (CRO).

185

Method for photochemical reduction of uranyl nitrate by tri-N-butyl phosphate and application of this method to nuclear fuel reprocessing  

DOE Patents (OSTI)

Uranyl ion in solution in tri-n-butyl phosphate is readily photochemically reduced to U(IV). The product U(IV) may effectively be used in the Purex process for treating spent nuclear fuels to reduce Pu(IV) to Pu(III). The Pu(III) is readily separated from uranium in solution in the tri-n-butyl phosphate by an aqueous strip.

De Poorter, Gerald L. (Los Alamos, NM); Rofer-De Poorter, Cheryl K. (Los Alamos, NM)

1978-01-01T23:59:59.000Z

186

NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy operated by the Alliance for Sustainable Energy, LLC Fuel Cell Tri-Generation System Case  

E-Print Network (OSTI)

and Renewable Energy operated by the Alliance for Sustainable Energy, LLC Fuel Cell Tri-Generation System Case and analyze a range of realistic case studies for tri-generation systems. #12;National Renewable Energy Tri-Generation System Provides Hydrogen as an Additional Output Reformer 90100 43 Heat Loss (10

187

DOE - Office of Legacy Management -- Yale Heavy Ion Linear Accelerator - CT  

NLE Websites -- All DOE Office Websites (Extended Search)

Yale Heavy Ion Linear Accelerator - Yale Heavy Ion Linear Accelerator - CT 05 FUSRAP Considered Sites Site: Yale Heavy Ion Linear Accelerator (CT.05) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: New Haven , Connecticut CT.05-1 Evaluation Year: 1987 CT.05-3 Site Operations: Research and development with solvents. CT.05-1 Site Disposition: Eliminated - Potential for contamination remote based on limited amount of materials handled CT.05-3 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium, Radium CT.05-1 Radiological Survey(s): No Site Status: Eliminated from consideration under FUSRAP Also see Documents Related to Yale Heavy Ion Linear Accelerator CT.05-1 - MED Memorandum; To the Files, Thru Ruhoff, et. al.;

188

DOE - Office of Legacy Management -- Metals Selling Corp - CT 0-01  

Office of Legacy Management (LM)

Selling Corp - CT 0-01 Selling Corp - CT 0-01 FUSRAP Considered Sites Site: METALS SELLING CORP. (CT.0-01 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Putnam , Connecticut CT.0-01-1 Evaluation Year: 1986 CT.0-01-1 Site Operations: Performed grinding of (non-radioactive) magnesium circa 1950 -1952 as a sub-contractor to Mallinckrodt Corp. CT.0-01-1 Site Disposition: Eliminated - No indication that radioactive materials were handled at this location CT.0-01-1 Radioactive Materials Handled: No Primary Radioactive Materials Handled: None Radiological Survey(s): No Site Status: Eliminated from consideration under FUSRAP Also see Documents Related to METALS SELLING CORP. CT.0-01-1 - DOE Memorandum/Checklist D. Levine to File; Subject -

189

Surface-Layer Fluxes Measured Using the CT2-Profile Method  

Science Conference Proceedings (OSTI)

The first experimental test of obtaining heat and momentum fluxes from measurements of the profile of the temperature structure parameter CT2 is performed. The parameter CT2 is obtained from resistance-wire thermometers as well as from optical-...

Reginald J. Hill; Gerard R. Ochs; James J. Wilson

1992-10-01T23:59:59.000Z

190

A New Approach in Metal Artifact Reduction for CT 3D Reconstruction  

Science Conference Proceedings (OSTI)

The 3D representation of CT scans is widely used in medical application such as virtual endoscopy, plastic reconstructive surgery, dental implant planning systems and more. Metallic objects present in CT studies cause strong artifacts like beam hardening ...

Valery Naranjo; Roberto Llorens; Patricia Paniagua; Mariano Alcaiz; Salvador Albalat

2009-06-01T23:59:59.000Z

191

Test of 3D CT reconstructions by EM + TV algorithm from undersampled data  

SciTech Connect

Computerized tomography (CT) plays an important role in medical imaging for diagnosis and therapy. However, CT imaging is connected with ionization radiation exposure of patients. Therefore, the dose reduction is an essential issue in CT. In 2011, the Expectation Maximization and Total Variation Based Model for CT Reconstruction (EM+TV) was proposed. This method can reconstruct a better image using less CT projections in comparison with the usual filtered back projection (FBP) technique. Thus, it could significantly reduce the overall dose of radiation in CT. This work reports the results of an independent numerical simulation for cone beam CT geometry with alternative virtual phantoms. As in the original report, the 3D CT images of 128 Multiplication-Sign 128 Multiplication-Sign 128 virtual phantoms were reconstructed. It was not possible to implement phantoms with lager dimensions because of the slowness of code execution even by the CORE i7 CPU.

Evseev, Ivan; Ahmann, Francielle; Silva, Hamilton P. da [Universidade Tecnologica Federal do Parana - UTFPR/FB, 85601-970, Caixa Postal 135, Francisco Beltrao - PR (Brazil); Schelin, Hugo R. [Universidade Tecnologica Federal do Parana-UTFPR/FB,85601-970,Caixa Postal 135,Francisco Beltrao-PR (Brazil) and Faculdades Pequeno Principe-FPP, Av. Iguacu, 333, Rebou (Brazil); Yevseyeva, Olga [Universidade Federal de Santa Catarina - UFSC/ARA, 88900-000, Rua Pedro Joao Pereira, 150, Ararangua - SC (Brazil); Klock, Margio C. L. [Universidade Federal do Parana - UFPR Litoral, 80230-901, Rua Jaguaraiva 512, Caioba, Matinhos - PR (Brazil)

2013-05-06T23:59:59.000Z

192

Matter Matters: Unphysical Properties of the Rh = ct Universe  

E-Print Network (OSTI)

It is generally agreed that there is matter in the universe and, in this paper, we show that the existence of matter is extremely problematic for the proposed Rh = ct universe. Considering a dark energy component with an equation of state of w=-1/3, it is shown that the presence of matter destroys the strict expansion properties that define the evolution of Rh = ct cosmologies, distorting the observational properties that are touted as its success. We further examine whether an evolving dark energy component can save this form of cosmological expansion in the presence of matter by resulting in an expansion consistent with a mean value of = -1/3, finding that the presence of mass requires unphysical forms of the dark energy component in the early universe. We conclude that matter in the universe significantly limits the fundamental properties of the Rh = ct cosmology, and that novel, and unphysical, evolution of the matter component would be required to save it. Given this, Rh = ct cosmology is not simpler or...

Lewis, Geraint F

2013-01-01T23:59:59.000Z

193

Recent developments of the ion sources at Tri University Meson Factory/Isotope Separator and ACcelerator Facility  

SciTech Connect

This paper describes the recent progresses concerning the on-line ion source at the Tri University Meson Factory/Isotope Separator and ACcelerator (TRIUMF/ISAC) Radioactive Ion-Beam Facility; description of the new design of the surface-ion-source for improved stability of the beam intensity, description of the transport path to the east target station at ISAC, description of the new brazing techniques that solved recurrent problems with water leaks on the target/ion source assembly in the vacuum system, finally, recent developments concerning the Forced Electron Beam Induced Arc Discharge (FEBIAD) ion source are reported. In particular, a study on the effect of the plasma chamber volume on the ionization efficiency was completed.

Bricault, P. G.; Ames, F.; Dombsky, M.; Labrecque, F.; Lassen, J.; Mjos, A.; Minor, G. [TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3 (Canada); Tigelhoefer, A. [TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3 (Canada); Department Of Physics, University of Manitoba, Winnipeg, Manitoba R3T 2N2 (Canada)

2012-02-15T23:59:59.000Z

194

Determinants of residential electrical appliance usage in the Tri-State Region, 1960-1970: a regression study. Working paper  

SciTech Connect

The possible impact of areawide residential location policy on future residential electricity usage in the Tri-State Metropolitan Region centering on New York City is investigated. This study was undertaken to assess residential electricity usage, particularly electrical appliance use, in the residential sector of the New York Metropolitan area from 1960 to 1970. The attempts to choose and quantify the contribution of various determinants of electrical appliance usage using multiple regression analyses has been relatively successful. In addition, these results were compared with 1960 and 1970 data in an effort to establish a degree of consistency over time. The implications of the findings here point toward two complementary institutions for change: urban planning and public administration. The relationship between single family structures and high energy usage argue strongly for more dense communities, while price elasticities can be used by regulators to control electrical usage.

Stone, B.

1974-05-01T23:59:59.000Z

195

Prompt-photon production in DIS  

E-Print Network (OSTI)

Prompt-photon cross sections in deep inelastic ep scattering were measured with the ZEUS detector at HERA using an integrated luminosity of 320pb^-1. Measurements of differential cross sections are presented for inclusive prompt-photon production as a function of Q^2, x, E_T and eta. Perturbative QCD predictions and Monte Carlo predictions are compared to the measurements.

Matthew Forrest

2009-09-22T23:59:59.000Z

196

DISEASES OF AQUATIC ORGANISMS Dis Aquat Org  

E-Print Network (OSTI)

4 , William M. Jones III4 , Kimberly S. Reece4 , Tim Meinke2 , Annette Gendron1 , James A. Rusak2, 5 Institute of Marine Science, The College of William & Mary, Gloucester Point, Virginia 23062, USA 5 Present for recreational angling and boating. The lake has a mean depth of 7.5 m and a broad littoral zone composed largely

Johnson, Pieter

197

GALAXY EVOLUTION FROM 'DIS' INTEGRATED LIGHT  

SciTech Connect

Masking the horizontal branch and giant stars allows unambiguous measurements of mean age and metallicity in simple old stellar populations from metal and hydrogen line strengths. Billion year resolution is possible in the luminous halos of early-type galaxies, constraining formation models. Most of the nuisance parameters in stellar evolution are avoided by isolating the main sequence for analysis. The initial mass function and s-process element diagnostics may also be accessible. Integral field spectrographs have a significant advantage for this work, which is confusion limited by the presence of bright stars in medium to high surface brightness applications.

Mould, Jeremy, E-mail: jmould@swin.edu.au [Centre for Astrophysics and Supercomputing, Swinburne University, Hawthorn, VIC 3122 (Australia)

2012-08-10T23:59:59.000Z

198

DIS 2009 Concluding Talk: Outlook and Perspective  

E-Print Network (OSTI)

I will present here my perception on the status of Deep Inelastic Scattering physics, as I have further developed it during this Workshop, together with a number of comments on the results that have impressed me most during this week. I will emphasize a number of open problems and of critical areas. Finally I conclude with some projections and auspices for the future of the field.

Guido Altarelli

2009-07-10T23:59:59.000Z

199

Superfund Record of Decision (EPA Region 4): Tri-City Conservationist Corporation Site, Temple Terrace, Florida (first remedial action), September 1987. Final report  

Science Conference Proceedings (OSTI)

The Tri-City property, occupying approximately one-quarter acre, is located in Temple Terrace, Hillsborough County, Florida. The site is located within one-fourth mile of at least eight private drinking water wells and within two miles of major public-drinking-water supply wells. From 1960 to 1975 the Tri-City property was used for the operation of a heating-oil service business. From 1978 to 1983, Tri-City Oil Conservationist Corporation was a waste oil collection and distribution center. During the operational period of the Tri-City site, the Hillsborough County Environmental Protection Commission and the Florida Department of Environmental Regulation (FDER) received several complaints regarding odor problems and sloppy practices. In 1982, a 3000-gallon waste oil spill occurred at the Tri-City operation. The owner failed to clean up the site at the request of FDER and in February 1984, EPA conducted an immediate removal action. Following the removal, soil contamination posed a threat to the ground water.

Not Available

1987-09-21T23:59:59.000Z

200

Assessment of Summer RBOB Supply for NY & CT  

Gasoline and Diesel Fuel Update (EIA)

Update of Summer Reformulated Gasoline Supply Update of Summer Reformulated Gasoline Supply Assessment for New York and Connecticut May 5, 2004 In October 2003, EIA published a review of the status of the methyl tertiary butyl ether (MTBE) ban transition in New York (NY) and Connecticut (CT) 1 that noted significant uncertainties in gasoline supply for those States for the summer of 2004. To obtain updated information, EIA spoke to major suppliers to the two States over the past several months as the petroleum industry began the switch from winter- to summer-grade gasoline. As discussed on our earlier report, the NY and CT bans on MTBE mainly affect reformulated gasoline (RFG), which in recent years has been provided by domestic refineries on the East Coast (PADD 1) and imports. Our recent findings indicate that

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Tri-State Synfuels Project Review: Volume 11B. Process development studies. [Proposed Henderson, Kentucky coal to gasoline plant; alternative engineering studies; also Kentucky vs Wyoming coal  

DOE Green Energy (OSTI)

During the course of the Tri-State/Fluor Management Meeting held in Irvine on October 1, 1981, Fluor was requested to prepare additional process alternate studies. Discussions held on October 2 resulted in the definition of the eight cases described in this report. The scope for these eight cases were reviewed and approved during a meeting held in Houston on October 12. During the October 12 meeting Tri-State requested the preparation of an additional four cases reflecting the use of a typical Powder River basin coal. Cases 9 thru 12 issued with Revision 1 of this report reflect results of this work.

Not Available

1982-06-01T23:59:59.000Z

202

Synthesis of DNA Templated Tri-functional Electrically Conducting, Optical and Magnetic nanochain of Nicore-Aushell for Bio-device  

E-Print Network (OSTI)

Synthesis of tri functional electrically conducting, optical and magnetic nano-chain of Nicore-Aushell has been discussed here. Our Investigation indicates that such material attached with biomolecule DNA in chain form will have great potentiality in medical instrument and bio computer device.

Mandal, Madhuri

2009-01-01T23:59:59.000Z

203

This is the end of my tour of discovery, of over two years of reading about and trying to understand atmospheric physics and wind turbines, of  

E-Print Network (OSTI)

and trying to understand atmospheric physics and wind turbines, of measurements and theory, of applying: indeed, it looks like wind turbines have become more fascinating now their sound has proved to be more motivate researchers and consultants to put more effort in better predictions of wind turbine noise

Groningen, Rijksuniversiteit

204

Artifacts in Conventional Computed Tomography (CT) and Free Breathing Four-Dimensional CT Induce Uncertainty in Gross Tumor Volume Determination  

Science Conference Proceedings (OSTI)

Purpose: Artifacts impacting the imaged tumor volume can be seen in conventional three-dimensional CT (3DCT) scans for planning of lung cancer radiotherapy but can be reduced with the use of respiration-correlated imaging, i.e., 4DCT or breathhold CT (BHCT) scans. The aim of this study was to compare delineated gross tumor volume (GTV) sizes in 3DCT, 4DCT, and BHCT scans of patients with lung tumors. Methods and Materials: A total of 36 patients with 46 tumors referred for stereotactic radiotherapy of lung tumors were included. All patients underwent positron emission tomography (PET)/CT, 4DCT, and BHCT scans. GTVs in all CT scans of individual patients were delineated during one session by a single physician to minimize systematic delineation uncertainty. The GTV size from the BHCT was considered the closest to true tumor volume and was chosen as the reference. The reference GTV size was compared to GTV sizes in 3DCT, at midventilation (MidV), at end-inspiration (Insp), and at end-expiration (Exp) bins from the 4DCT scan. Results: The median BHCT GTV size was 4.9 cm{sup 3} (0.1-53.3 cm{sup 3}). Median deviation between 3DCT and BHCT GTV size was 0.3 cm{sup 3} (-3.3 to 30.0 cm{sup 3}), between MidV and BHCT size was 0.2 cm{sup 3} (-5.7 to 19.7 cm{sup 3}), between Insp and BHCT size was 0.3 cm{sup 3} (-4.7 to 24.8 cm{sup 3}), and between Exp and BHCT size was 0.3 cm{sup 3} (-4.8 to 25.5 cm{sup 3}). The 3DCT, MidV, Insp, and Exp median GTV sizes were all significantly larger than the BHCT median GTV size. Conclusions: In the present study, the choice of CT method significantly influenced the delineated GTV size, on average, leading to an increase in GTV size compared to the reference BHCT. The uncertainty caused by artifacts is estimated to be in the same magnitude as delineation uncertainty and should be considered in the design of margins for radiotherapy.

Fredberg Persson, Gitte, E-mail: gitte.persson@rh.regionh.dk [Department of Radiation Oncology, Copenhagen University Hospital, Rigshospitalet, Copenhagen (Denmark); Nygaard, Ditte Eklund; Munch af Rosenschoeld, Per; Richter Vogelius, Ivan; Josipovic, Mirjana [Department of Radiation Oncology, Copenhagen University Hospital, Rigshospitalet, Copenhagen (Denmark); Specht, Lena [Department of Radiation Oncology, Copenhagen University Hospital, Rigshospitalet, Copenhagen (Denmark); Faculty of Health Sciences, University of Copenhagen, Copenhagen (Denmark); Korreman, Stine Sofia [Department of Radiation Oncology, Copenhagen University Hospital, Rigshospitalet, Copenhagen (Denmark); Department of Human Oncology, University of Wisconsin-Madison, Madison, Wisconsin (United States); Niels Bohr Institute, Faculty of Sciences, University of Copenhagen, Copenhagen (Denmark)

2011-08-01T23:59:59.000Z

205

Dedicated breast CT: Fibroglandular volume measurements in a diagnostic population  

SciTech Connect

Purpose: To determine the mean and range of volumetric glandular fraction (VGF) of the breast in a diagnostic population using a high-resolution flat-panel cone-beam dedicated breast CT system. This information is important for Monte Carlo-based estimation of normalized glandular dose coefficients and for investigating the dependence of VGF on breast dimensions, race, and pathology. Methods: Image data from a clinical trial investigating the role of dedicated breast CT that enrolled 150 women were retrospectively analyzed to determine the VGF. The study was conducted in adherence to a protocol approved by the institutional human subjects review boards and written informed consent was obtained from all study participants. All participants in the study were assigned BI-RADS{sup Registered-Sign} 4 or 5 as per the American College of Radiology assessment categories after standard diagnostic work-up and underwent dedicated breast CT exam prior to biopsy. A Gaussian-kernel based fuzzy c-means algorithm was used to partition the breast CT images into adipose and fibroglandular tissue after segmenting the skin. Upon determination of the accuracy of the algorithm with a phantom, it was applied to 137 breast CT volumes from 136 women. VGF was determined for each breast and the mean and range were determined. Pathology results with classification as benign, malignant, and hyperplasia were available for 132 women, and were used to investigate if the distributions of VGF varied with pathology. Results: The algorithm was accurate to within {+-}1.9% in determining the volume of an irregular shaped phantom. The study mean ({+-} inter-breast SD) for the VGF was 0.172 {+-} 0.142 (range: 0.012-0.719). VGF was found to be negatively correlated with age, breast dimensions (chest-wall to nipple length, pectoralis to nipple length, and effective diameter at chest-wall), and total breast volume, and positively correlated with fibroglandular volume. Based on pathology, pairwise statistical analysis (Mann-Whitney test) indicated that at the 0.05 significance level, there was no significant difference in distributions of VGF without adjustment for age between malignant and nonmalignant breasts (p= 0.41). Pairwise comparisons of the distributions of VGF in increasing order of mammographic breast density indicated all comparisons were statistically significant (p < 0.002). Conclusions: This study used a different clinical prototype breast CT system than that in previous studies to image subjects from a different geographical region, and used a different algorithm for analysis of image data. The mean VGF estimated from this study is within the range reported in previous studies, indicating that the choice of 50% glandular weight fraction to represent an average breast for Monte Carlo-based estimation of normalized glandular dose coefficients in mammography needs revising. In the study, the distributions of VGF did not differ significantly with pathology.

Vedantham, Srinivasan; Shi Linxi; Karellas, Andrew; O'Connell, Avice M. [Department of Radiology, University of Massachusetts Medical School, Worcester, Massachusetts 01655 (United States); Department of Imaging Sciences, University of Rochester Medical Center, Rochester, New York 14642 (United States)

2012-12-15T23:59:59.000Z

206

Non-medical Uses of Computed Tomography (CT) and Nuclear Magnetic Resonance  

NLE Websites -- All DOE Office Websites (Extended Search)

Non-medical Uses of Computed Tomography (CT) Non-medical Uses of Computed Tomography (CT) and Nuclear Magnetic Resonance (NMR) Resources with Additional Information Computed Tomography (CT) Scanner CT Scanner - Courtesy Stanford University Department of Energy Resources Engineering Computed tomography (CT) and Nuclear Magnetic Resonance (NMR) have been used to resolve industrial problems, for materials characterizations, and to provide non-destructive evaluations for discovering flaws in parts before their use, resulting in greater reliability and greater safety for workers; to identify the presence and facilitate the recovery/extraction of oil, water, coal, and/or gas; and to provide non-destructive testing and quality control of fresh fruits and vegetables, enhancing the safety of food. These benefits of non-medical uses of CT and NMR contribute to the economy and improve people's lives.

207

Patient-specific dose estimation for pediatric chest CT  

SciTech Connect

Current methods for organ and effective dose estimations in pediatric CT are largely patient generic. Physical phantoms and computer models have only been developed for standard/limited patient sizes at discrete ages (e.g., 0, 1, 5, 10, 15 years old) and do not reflect the variability of patient anatomy and body habitus within the same size/age group. In this investigation, full-body computer models of seven pediatric patients in the same size/protocol group (weight: 11.9-18.2 kg) were created based on the patients' actual multi-detector array CT (MDCT) data. Organs and structures in the scan coverage were individually segmented. Other organs and structures were created by morphing existing adult models (developed from visible human data) to match the framework defined by the segmented organs, referencing the organ volume and anthropometry data in ICRP Publication 89. Organ and effective dose of these patients from a chest MDCT scan protocol (64 slice LightSpeed VCT scanner, 120 kVp, 70 or 75 mA, 0.4 s gantry rotation period, pitch of 1.375, 20 mm beam collimation, and small body scan field-of-view) was calculated using a Monte Carlo program previously developed and validated to simulate radiation transport in the same CT system. The seven patients had normalized effective dose of 3.7-5.3 mSv/100 mAs (coefficient of variation: 10.8%). Normalized lung dose and heart dose were 10.4-12.6 mGy/100 mAs and 11.2-13.3 mGy/100 mAs, respectively. Organ dose variations across the patients were generally small for large organs in the scan coverage (<7%), but large for small organs in the scan coverage (9%-18%) and for partially or indirectly exposed organs (11%-77%). Normalized effective dose correlated weakly with body weight (correlation coefficient: r=-0.80). Normalized lung dose and heart dose correlated strongly with mid-chest equivalent diameter (lung: r=-0.99, heart: r=-0.93); these strong correlation relationships can be used to estimate patient-specific organ dose for any other patient in the same size/protocol group who undergoes the chest scan. In summary, this work reported the first assessment of dose variations across pediatric CT patients in the same size/protocol group due to the variability of patient anatomy and body habitus and provided a previously unavailable method for patient-specific organ dose estimation, which will help in assessing patient risk and optimizing dose reduction strategies, including the development of scan protocols.

Li Xiang; Samei, Ehsan; Segars, W. Paul; Sturgeon, Gregory M.; Colsher, James G.; Frush, Donald P. [Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 and Department of Radiology, Duke Advanced Imaging Laboratories, Duke University Medical Center, Durham, North Carolina 27705 (United States); Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States); Department of Radiology, Duke Advanced Imaging Laboratories, Duke University Medical Center, Durham, North Carolina 27705 (United States); Department of Physics, Duke University, Durham, North Carolina 27710 (United States); and Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708 (United States); Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 and Department of Radiology, Duke Advanced Imaging Laboratories, Duke University Medical Center, Durham, North Carolina 27705 (United States); Department of Radiology, Duke Advanced Imaging Laboratories, Duke University Medical Center, Durham, North Carolina 27705 (United States); Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 and Global Applied Science Laboratory, GE Healthcare, Waukesha, Wisconsin 53188 (United States); Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 and Department of Radiology, Division of Pediatric Radiology, Duke University Medical Center, Durham North Carolina 27710 (United States)

2008-12-15T23:59:59.000Z

208

MIEDER, WOLFGANG. Proverbs: A Handbook. Westport, CT: Greenwood, 2004. 304 pp.  

E-Print Network (OSTI)

selecta bibliografa, Proverbs: A Handbook interesado en unWOLFGANG. Proverbs: A Handbook. Westport, CT: Greenwood,libros de referencia de Handbooks" publicado en el nueva la

Lee, Alejandro

2005-01-01T23:59:59.000Z

209

10 A.M. CT TODAY: On-the Record Conference Call for Obama Administrati...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

White House Rural Economic Council Promotes Production of Next Generation Biofuels, Job Creation and Economic Opportunity WASHINGTON, Aug. 16, 2011 - Today at 10 a.m. CT (11...

210

Simultaneous CT and SPECT tomography using CZT detectors  

DOE Patents (OSTI)

A method for simultaneous transmission x-ray computed tomography (CT) and single photon emission tomography (SPECT) comprises the steps of: injecting a subject with a tracer compound tagged with a .gamma.-ray emitting nuclide; directing an x-ray source toward the subject; rotating the x-ray source around the subject; emitting x-rays during the rotating step; rotating a cadmium zinc telluride (CZT) two-sided detector on an opposite side of the subject from the source; simultaneously detecting the position and energy of each pulsed x-ray and each emitted .gamma.-ray captured by the CZT detector; recording data for each position and each energy of each the captured x-ray and .gamma.-ray; and, creating CT and SPECT images from the recorded data. The transmitted energy levels of the x-rays lower are biased lower than energy levels of the .gamma.-rays. The x-ray source is operated in a continuous mode. The method can be implemented at ambient temperatures.

Paulus, Michael J. (Knoxville, TN); Sari-Sarraf, Hamed (Lubbock, TX); Simpson, Michael L. (Knoxville, TN); Britton, Jr., Charles L. (Alcoa, TN)

2002-01-01T23:59:59.000Z

211

Resolution and noise trade-off analysis for volumetric CT  

Science Conference Proceedings (OSTI)

Until recently, most studies addressing the trade-off between spatial resolution and quantum noise were performed in the context of single-slice CT. In this study, we extend the theoretical framework of previous works to volumetric CT and further extend it by taking into account the actual shapes of the preferred reconstruction kernels. In the experimental study, we also attempt to explore a three-dimensional approach for spatial resolution measurement, as opposed to the conventional two-dimensional approaches that were widely adopted in previously published studies. By scanning a finite-sized sphere phantom, the MTF was measured from the edge profile along the spherical surface. Cases of different resolutions (and noise levels) were generated by adjusting the reconstruction kernel. To reduce bias, the total photon fluxes were matched: 120 kVp, 200 mA, and 1 s per gantry rotation. All data sets were reconstructed using a modified FDK algorithm under the same condition: Scan field-of-view (SFOV)=10 cm, and slice thickness=0.625 mm. The theoretical analysis indicated that the variance of noise is proportional to >4th power of the spatial resolution. Our experimental results supported this conclusion by showing the relationship is 4.6th (helical) or 5th (axial) power.

Li Baojun; Avinash, Gopal B.; Hsieh, Jiang [Applied Science Laboratory, General Electric Healthcare, Waukesha, Wisconsin 53188 (United States)

2007-10-15T23:59:59.000Z

212

Superfund Record of Decision (EPA Region 5): Tri County/Elgin Landfill Site, Elgin, IL. (First remedial action), September 1992. Final report  

SciTech Connect

The 66-acre Tri County Landfill (TCL) site comprises two former landfills the Tri County Landfill and the Elgin Landfill, located near the junction of Kane, Cook and DuPage Counties, Illinois. The two disposal operations overlapped to the point where the two landfills were indistinguishable. Land use in the area is predominantly agricultural. The local residents and businesses use private wells as their drinking water supply. Prior to the 1940's, both landfills were used for gravel mining operations. From 1968 to 1976, the TCL received liquid and industrial waste. State and county inspection reports revealed that open dumping, area filling, and dumping into the abandonded gravel quarry had occurred at the site. In addition, confined dumping, inadequate daily cover, blowing litter, fires, lack of access restrictions, and leachate flows were typical problems reported. In 1981, the landfill was closed with a final cover.

Not Available

1992-09-30T23:59:59.000Z

213

Metal artifact reduction in dental CT images using polar mathematical morphology  

Science Conference Proceedings (OSTI)

Abstract: Most dental implant planning systems use a 3D representation of the CT scan of the patient under study as it provides a more intuitive view of the human jaw. The presence of metallic objects in human jaws, such as amalgam or gold fillings, ... Keywords: Artifact reduction, Dental CT, Polar morphology

Valery Naranjo; Roberto Llorns; Mariano Alcaiz; Fernando Lpez-Mir

2011-04-01T23:59:59.000Z

214

Five Years of Cyclotron Radioisotope Production Experiences at the First PET-CT in Venezuela  

Science Conference Proceedings (OSTI)

Five years operation of a compact cyclotron installed at PET-CT facility in Caracas, Venezuela is given. Production rate of {sup 18}F labeled FDG, operation and radiation monitoring experience are included. We conclude that {sup 18}FDG CT-PET is the most effective technique for patient diagnosis.

Colmenter, L.; Coelho, D.; Esteves, L. M.; Ruiz, N.; Morales, L.; Lugo, I. [Centro Diagnostico Docente, Las Mercedes, Caracas (Venezuela); Sajo-Bohus, L.; Liendo, J. A.; Greaves, E. D.; Barros, H. [Universidad Simon Bolivar, Seccion de Fisica Nuclear, Caracas (Venezuela); Castillo, J. [University of Applied Science of Aachen (Germany)

2007-10-26T23:59:59.000Z

215

AUTOMATIC HEART ISOLATION FOR CT CORONARY VISUALIZATION USING G. Funka-Lea1  

E-Print Network (OSTI)

AUTOMATIC HEART ISOLATION FOR CT CORONARY VISUALIZATION USING GRAPH-CUTS G. Funka-Lea1 , Y. Boykov3 isolate the outer surface of the entire heart in Computer Tomogra- phy (CT) cardiac scans. Isolating the entire heart allows the coronary vessels on the surface of the heart to be easily visu- alized despite

Boykov, Yuri

216

ECG-correlated image reconstruction from subsecond multi-slice spiral CT scans of the heart  

Science Conference Proceedings (OSTI)

Subsecond spiral computed tomography(CT) offers great potential for improving heartimaging. The new multi-row detector technology adds significantly to this potential. We therefore developed and validated dedicated cardiacreconstruction algorithms for imaging the heart with subsecond multi-slice spiral CT utilizing electrocardiogram (ECG) information. The single-slice cardiacz-interpolation algorithms 180CI and 180CD [Med. Phys. 25

Marc Kachelrie; Stefan Ulzheimer; Willi A. Kalender

2000-01-01T23:59:59.000Z

217

Non-medical Uses of Computed Tomography (CT) and Nuclear Magnetic Resonance  

Office of Scientific and Technical Information (OSTI)

Non-medical Uses of Computed Tomography (CT) and Nuclear Magnetic Resonance (NMR) Resources with Additional Information Computed Tomography (CT) Scanner CT Scanner - Courtesy Stanford University Department of Energy Resources Engineering Computed tomography (CT) and Nuclear Magnetic Resonance (NMR) have been used to resolve industrial problems, for materials characterizations, and to provide non-destructive evaluations for discovering flaws in parts before their use, resulting in greater reliability and greater safety for workers; to identify the presence and facilitate the recovery/extraction of oil, water, coal, and/or gas; and to provide non-destructive testing and quality control of fresh fruits and vegetables, enhancing the safety of food. These benefits of non-medical uses of CT and NMR contribute to the economy and improve people's lives.

218

TriBITS lifecycle model. Version 1.0, a lean/agile software lifecycle model for research-based computational science and engineering and applied mathematical software.  

SciTech Connect

Software lifecycles are becoming an increasingly important issue for computational science and engineering (CSE) software. The process by which a piece of CSE software begins life as a set of research requirements and then matures into a trusted high-quality capability is both commonplace and extremely challenging. Although an implicit lifecycle is obviously being used in any effort, the challenges of this process - respecting the competing needs of research vs. production - cannot be overstated. Here we describe a proposal for a well-defined software lifecycle process based on modern Lean/Agile software engineering principles. What we propose is appropriate for many CSE software projects that are initially heavily focused on research but also are expected to eventually produce usable high-quality capabilities. The model is related to TriBITS, a build, integration and testing system, which serves as a strong foundation for this lifecycle model, and aspects of this lifecycle model are ingrained in the TriBITS system. Here, we advocate three to four phases or maturity levels that address the appropriate handling of many issues associated with the transition from research to production software. The goals of this lifecycle model are to better communicate maturity levels with customers and to help to identify and promote Software Engineering (SE) practices that will help to improve productivity and produce better software. An important collection of software in this domain is Trilinos, which is used as the motivation and the initial target for this lifecycle model. However, many other related and similar CSE (and non-CSE) software projects can also make good use of this lifecycle model, especially those that use the TriBITS system. Indeed this lifecycle process, if followed, will enable large-scale sustainable integration of many complex CSE software efforts across several institutions.

Willenbring, James M.; Bartlett, Roscoe Ainsworth (Oak Ridge National Laboratory, Oak Ridge, TN); Heroux, Michael Allen

2012-01-01T23:59:59.000Z

219

Temporal and spectral imaging with micro-CT  

Science Conference Proceedings (OSTI)

Purpose: Micro-CT is widely used for small animal imaging in preclinical studies of cardiopulmonary disease, but further development is needed to improve spatial resolution, temporal resolution, and material contrast. We present a technique for visualizing the changing distribution of iodine in the cardiac cycle with dual source micro-CT. Methods: The approach entails a retrospectively gated dual energy scan with optimized filters and voltages, and a series of computational operations to reconstruct the data. Projection interpolation and five-dimensional bilateral filtration (three spatial dimensions + time + energy) are used to reduce noise and artifacts associated with retrospective gating. We reconstruct separate volumes corresponding to different cardiac phases and apply a linear transformation to decompose these volumes into components representing concentrations of water and iodine. Since the resulting material images are still compromised by noise, we improve their quality in an iterative process that minimizes the discrepancy between the original acquired projections and the projections predicted by the reconstructed volumes. The values in the voxels of each of the reconstructed volumes represent the coefficients of linear combinations of basis functions over time and energy. We have implemented the reconstruction algorithm on a graphics processing unit (GPU) with CUDA. We tested the utility of the technique in simulations and applied the technique in an in vivo scan of a C57BL/6 mouse injected with blood pool contrast agent at a dose of 0.01 ml/g body weight. Postreconstruction, at each cardiac phase in the iodine images, we segmented the left ventricle and computed its volume. Using the maximum and minimum volumes in the left ventricle, we calculated the stroke volume, the ejection fraction, and the cardiac output. Results: Our proposed method produces five-dimensional volumetric images that distinguish different materials at different points in time, and can be used to segment regions containing iodinated blood and compute measures of cardiac function. Conclusions: We believe this combined spectral and temporal imaging technique will be useful for future studies of cardiopulmonary disease in small animals.

Johnston, Samuel M.; Johnson, G. Allan; Badea, Cristian T. [Center for In Vivo Microscopy, Duke University Medical Center, Durham, North Carolina 27710 (United States)

2012-08-15T23:59:59.000Z

220

American Ref-Fuel of SE CT Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

American Ref-Fuel of SE CT Biomass Facility American Ref-Fuel of SE CT Biomass Facility Jump to: navigation, search Name American Ref-Fuel of SE CT Biomass Facility Facility American Ref-Fuel of SE CT Sector Biomass Facility Type Municipal Solid Waste Location New London County, Connecticut Coordinates 41.5185189°, -72.0468164° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.5185189,"lon":-72.0468164,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

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221

10 A.M. CT TODAY: On-the Record Conference Call for Obama Administration to  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

A.M. CT TODAY: On-the Record Conference Call for Obama A.M. CT TODAY: On-the Record Conference Call for Obama Administration to Announce Major Initiative to Enhance America's Energy Security 10 A.M. CT TODAY: On-the Record Conference Call for Obama Administration to Announce Major Initiative to Enhance America's Energy Security August 16, 2011 - 9:52am Addthis White House Rural Economic Council Promotes Production of Next Generation Biofuels, Job Creation and Economic Opportunity WASHINGTON, Aug. 16, 2011 - Today at 10 a.m. CT (11 a.m. ET), the Obama Administration will advance a major initiative to produce next generation aviation and marine biofuels to power military and commercial transportation. The initiative responds to a directive from President Obama issued in March as part of his Blueprint for a Secure Energy Future, the

222

A Fossilized Opal A To Opal C-T Transformation On The Northeast Atlantic  

Open Energy Info (EERE)

Fossilized Opal A To Opal C-T Transformation On The Northeast Atlantic Fossilized Opal A To Opal C-T Transformation On The Northeast Atlantic Margin- Support For A Significantly Elevated Palaeogeothermal Gradient During The Neogene? Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Fossilized Opal A To Opal C-T Transformation On The Northeast Atlantic Margin- Support For A Significantly Elevated Palaeogeothermal Gradient During The Neogene? Details Activities (0) Areas (0) Regions (0) Abstract: Rock samples-collected from a recent deep-water exploration well drilled in the Faeroe-Shetland Channel, northwest of the UK-confirm that a distinctive high-amplitude seismic reflector that crosscuts the Upper Palaeogene and Neogene succession and covers an area of 10 000 km(2) is an example of a fossilized Opal A to Opal C/T (Cristobalite/Tridymite)

223

Patient-specific radiation dose and cancer risk estimation in CT: Part II. Application to patients  

SciTech Connect

Purpose: Current methods for estimating and reporting radiation dose from CT examinations are largely patient-generic; the body size and hence dose variation from patient to patient is not reflected. Furthermore, the current protocol designs rely on dose as a surrogate for the risk of cancer incidence, neglecting the strong dependence of risk on age and gender. The purpose of this study was to develop a method for estimating patient-specific radiation dose and cancer risk from CT examinations. Methods: The study included two patients (a 5-week-old female patient and a 12-year-old male patient), who underwent 64-slice CT examinations (LightSpeed VCT, GE Healthcare) of the chest, abdomen, and pelvis at our institution in 2006. For each patient, a nonuniform rational B-spine (NURBS) based full-body computer model was created based on the patient's clinical CT data. Large organs and structures inside the image volume were individually segmented and modeled. Other organs were created by transforming an existing adult male or female full-body computer model (developed from visible human data) to match the framework defined by the segmented organs, referencing the organ volume and anthropometry data in ICRP Publication 89. A Monte Carlo program previously developed and validated for dose simulation on the LightSpeed VCT scanner was used to estimate patient-specific organ dose, from which effective dose and risks of cancer incidence were derived. Patient-specific organ dose and effective dose were compared with patient-generic CT dose quantities in current clinical use: the volume-weighted CT dose index (CTDI{sub vol}) and the effective dose derived from the dose-length product (DLP). Results: The effective dose for the CT examination of the newborn patient (5.7 mSv) was higher but comparable to that for the CT examination of the teenager patient (4.9 mSv) due to the size-based clinical CT protocols at our institution, which employ lower scan techniques for smaller patients. However, the overall risk of cancer incidence attributable to the CT examination was much higher for the newborn (2.4 in 1000) than for the teenager (0.7 in 1000). For the two pediatric-aged patients in our study, CTDI{sub vol} underestimated dose to large organs in the scan coverage by 30%-48%. The effective dose derived from DLP using published conversion coefficients differed from that calculated using patient-specific organ dose values by -57% to 13%, when the tissue weighting factors of ICRP 60 were used, and by -63% to 28%, when the tissue weighting factors of ICRP 103 were used. Conclusions: It is possible to estimate patient-specific radiation dose and cancer risk from CT examinations by combining a validated Monte Carlo program with patient-specific anatomical models that are derived from the patients' clinical CT data and supplemented by transformed models of reference adults. With the construction of a large library of patient-specific computer models encompassing patients of all ages and weight percentiles, dose and risk can be estimated for any patient prior to or after a CT examination. Such information may aid in decisions for image utilization and can further guide the design and optimization of CT technologies and scan protocols.

Li Xiang; Samei, Ehsan; Segars, W. Paul; Sturgeon, Gregory M.; Colsher, James G.; Toncheva, Greta; Yoshizumi, Terry T.; Frush, Donald P. [Medical Physics Graduate Program, Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Medical Physics Graduate Program, Department of Physics, and Department of Biomedical Engineering, Duke University Medical Center, Durham, North Carolina 27705 (United States); Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Medical Physics Graduate Program, Duke University Medical Center, Durham, North Carolina 27705 (United States); Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 and Department of Biomedical Engineering, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Duke Radiation Dosimetry Laboratory, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Duke Radiation Dosimetry Laboratory, Department of Radiology, Medical Physics Graduate Program, Duke University Medical Center, Durham, North Carolina 27705 (United States); Division of Pediatric Radiology, Department of Radiology, Medical Physics Graduate Program, Duke University Medical Center, Durham, North Carolina 27710 (United States)

2011-01-15T23:59:59.000Z

224

Cost, Energy Use, and Emissions of Tri-Generation Systems - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

7 7 FY 2012 Annual Progress Report DOE Hydrogen and Fuel Cells Program Mark F. Ruth* (Primary Contact), Michael E. Goldsby † , Timothy J. Sa † , Victor Diakov* *National Renewable Energy Laboratory 15013 Denver West Pkwy. Golden, CO 80401 Phone: (303) 817-6160 Email: Mark.Ruth@nrel.gov † Sandia National Laboratories DOE Manager HQ: Fred Joseck Phone: (202) 586-7932 Email: Fred.Joseck@ee.doe.gov Project Start Date: December 1, 2010 Project End Date: October 31, 2011 Fiscal Year (FY) 2012 Objectives Develop a macro-system model (MSM): * Aimed at performing rapid cross-cutting analysis - Utilizing and linking other models - Improving consistency between models - Incorporate tri-generation systems into the MSM and * develop a methodology for MSM users to analyze

225

A nitrilo-tri-acetic-acid/acetic acid route for the deposition of epitaxial cerium oxide films as high temperature superconductor buffer layers  

SciTech Connect

A water based cerium oxide precursor solution using nitrilo-tri-acetic-acid (NTA) and acetic acid as complexing agents is described in detail. This precursor solution is used for the deposition of epitaxial CeO{sub 2} layers on Ni-5at%W substrates by dip-coating. The influence of the complexation behavior on the formation of transparent, homogeneous solutions and gels has been studied. It is found that ethylenediamine plays an important role in the gelification. The growth conditions for cerium oxide films were Ar-5% gas processing atmosphere, a solution concentration level of 0.25 M, a dwell time of 60 min at 900 {sup o}C and 5-30 min at 1050 {sup o}C. X-ray diffraction (XRD), scanning electron microscope (SEM), atomic force microscopy (AFM), pole figures and spectroscopic ellipsometry were used to characterize the CeO{sub 2} films with different thicknesses. Attenuated total reflection-Fourier transform infrared (ATR-FTIR) was used to determine the carbon residue level in the surface of the cerium oxide film, which was found to be lower than 0.01%. Textured films with a thickness of 50 nm were obtained. - Graphical abstract: Study of the complexation and hydrolysis behavior of Ce{sup 4+} ions in the presence of nitrilo-tri-acetic acid and the subsequent development of an aqueous chemical solution deposition route suited for the processing of textured CeO{sub 2} buffer layers on Ni-W tapes.

Thuy, T.T.; Lommens, P.; Narayanan, V.; Van de Velde, N.; De Buysser, K.; Herman, G.G.; Cloet, V. [Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281 - S3, 9000 Gent (Belgium); Van Driessche, I., E-mail: Isabel.Vandriessche@UGent.b [Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281 - S3, 9000 Gent (Belgium)

2010-09-15T23:59:59.000Z

226

Tri-Generation Success World's First Tri-Gen  

E-Print Network (OSTI)

station uses anaerobically digested biogas from the municipal wastewater treatment plant as the fuel SAE protocols for rapid 3-minute complete tank refueling. Gas or Biogas H2 is produced at anode Gas the versatility of fuel cells to utilize multiple feedstocks, such as biogas and natural gas, to produce power

227

A phantom for testing of 4D-CT for radiotherapy of small lesions  

SciTech Connect

Purpose: The use of time-resolved four-dimensional computed tomography (4D-CT) in radiotherapy requires strict quality assurance to ensure the accuracy of motion management protocols. The aim of this work was to design and test a phantom capable of large amplitude motion for use in 4D-CT, with particular interest in small lesions typical for stereotactic body radiotherapy. Methods: The phantom of 'see-saw' design is light weight, capable of including various sample materials and compatible with several surrogate marker signal acquisition systems. It is constructed of polymethylmethacrylate (Perspex) and its movement is controlled via a dc motor and drive wheel. It was tested using two CT scanners with different 4D acquisition methods: the Philips Brilliance Big Bore CT (helical scan, pressure belt) and a General Electric Discovery STE PET/CT (axial scan, infrared marker). Amplitudes ranging from 1.5 to 6.0 cm and frequencies of up to 40 cycles per minute were used to study the effect of motion on image quality. Maximum intensity projections (MIPs), as well as average intensity projections (AIPs) of moving objects were investigated and their quality dependence on the number of phase reconstruction bins assessed. Results: CT number discrepancies between moving and stationary objects were found to have no systematic dependence on amplitude, frequency, or specific interphase variability. MIP-delineated amplitudes of motion were found to match physical phantom amplitudes to within 2 mm for all motion scenarios tested. Objects undergoing large amplitude motions (>3.0 cm) were shown to cause artefacts in MIP and AIP projections when ten phase bins were assigned. This problem can be mitigated by increasing the number of phase bins in a 4D-CT scan. Conclusions: The phantom was found to be a suitable tool for evaluating the image quality of 4D-CT motion management technology, as well as providing a quality assurance tool for intercenter/intervendor testing of commercial 4D-CT systems. When imaging objects with large amplitudes, the completeness criterion described here indicates the number of phase bins required to prevent missing data in MIPs and AIPs. This is most relevant for small lesions undergoing large motions.

Dunn, L.; Kron, T.; Taylor, M. L.; Callahan, J.; Franich, R. D. [School of Applied Sciences and Health Innovations Research Institute, RMIT University, Melbourne 3000 (Australia); School of Applied Sciences and Health Innovations Research Institute, RMIT University, Melbourne 3000 (Australia) and Physical Sciences, Peter MacCallum Cancer Centre, East Melbourne 3002 (Australia); School of Applied Sciences and Health Innovations Research Institute, RMIT University, Melbourne 3000 (Australia); Physical Sciences, Peter MacCallum Cancer Centre, East Melbourne (Australia); School of Applied Sciences and Health Innovations Research Institute, RMIT University, Melbourne 3000 (Australia)

2012-09-15T23:59:59.000Z

228

Improved image quality for x-ray CT imaging of gel dosimeters  

Science Conference Proceedings (OSTI)

Purpose: This study provides a simple method for improving precision of x-ray computed tomography (CT) scans of irradiated polymer gel dosimetry. The noise affecting CT scans of irradiated gels has been an impediment to the use of clinical CT scanners for gel dosimetry studies. Methods: In this study, it is shown that multiple scans of a single PAGAT gel dosimeter can be used to extrapolate a ''zero-scan'' image which displays a similar level of precision to an image obtained by averaging multiple CT images, without the compromised dose measurement resulting from the exposure of the gel to radiation from the CT scanner. Results: When extrapolating the zero-scan image, it is shown that exponential and simple linear fits to the relationship between Hounsfield unit and scan number, for each pixel in the image, provide an accurate indication of gel density. Conclusions: It is expected that this work will be utilized in the analysis of three-dimensional gel volumes irradiated using complex radiotherapy treatments.

Kakakhel, M. B.; Kairn, T.; Kenny, J.; Trapp, J. V. [Faculty of Science and Technology, Queensland University of Technology, GPO Box 2434, Brisbane, Queesland 4001, Australia and Department of Physics and Applied Mathematics, DPAM, Pakistan Institute of Engineering and Applied Sciences, PO Nilore, Islamabad 45450 (Pakistan); Premion, The Wesley Medical Centre, Suite 1, 40 Chasely St, Auchenflower, Queensland 4066 (Australia); Premion, The Wesley Medical Centre, Suite 1, 40 Chasely St, Auchenflower, Queensland 4066, Australia and Australian Clinical Dosimetry Service, ARPANSA, Yallambie, Vic 3085 (Australia); Faculty of Science and Technology, Queensland University of Technology, GPO Box 2434, Brisbane, Ql d 4001 (Australia)

2011-09-15T23:59:59.000Z

229

Dynamic cone beam CT angiography of carotid and cerebral arteries using canine model  

SciTech Connect

Purpose: This research is designed to develop and evaluate a flat-panel detector-based dynamic cone beam CT system for dynamic angiography imaging, which is able to provide both dynamic functional information and dynamic anatomic information from one multirevolution cone beam CT scan. Methods: A dynamic cone beam CT scan acquired projections over four revolutions within a time window of 40 s after contrast agent injection through a femoral vein to cover the entire wash-in and wash-out phases. A dynamic cone beam CT reconstruction algorithm was utilized and a novel recovery method was developed to correct the time-enhancement curve of contrast flow. From the same data set, both projection-based subtraction and reconstruction-based subtraction approaches were utilized and compared to remove the background tissues and visualize the 3D vascular structure to provide the dynamic anatomic information. Results: Through computer simulations, the new recovery algorithm for dynamic time-enhancement curves was optimized and showed excellent accuracy to recover the actual contrast flow. Canine model experiments also indicated that the recovered time-enhancement curves from dynamic cone beam CT imaging agreed well with that of an IV-digital subtraction angiography (DSA) study. The dynamic vascular structures reconstructed using both projection-based subtraction and reconstruction-based subtraction were almost identical as the differences between them were comparable to the background noise level. At the enhancement peak, all the major carotid and cerebral arteries and the Circle of Willis could be clearly observed. Conclusions: The proposed dynamic cone beam CT approach can accurately recover the actual contrast flow, and dynamic anatomic imaging can be obtained with high isotropic 3D resolution. This approach is promising for diagnosis and treatment planning of vascular diseases and strokes.

Cai Weixing; Zhao Binghui; Conover, David; Liu Jiangkun; Ning Ruola [Department of Imaging Sciences, University of Rochester, 601 Elmwood Avenue, Rochester, New York 14642 (United States); Department of Radiology, Shanghai 6th People's Hospital, 600 Yishan Road, Xuhui, Shanghai (China); Koning Corporation, Lennox Tech Enterprise Center, 150 Lucius Gordon Drive Suite 112, West Henrietta, New York 14586 (United States); Department of Imaging Sciences, University of Rochester, 601 Elmwood Avenue, Rochester, New York 14642 (United States); Department of Imaging Sciences, University of Rochester, 601 Elmwood Avenue, Rochester, New York 14642 (United States) and Koning Corporation, Lennox Tech Enterprise Center, 150 Lucius Gordon Drive Suite 112, West Henrietta, New York 14586 (United States)

2012-01-15T23:59:59.000Z

230

Novel tri-modal defect structure in Nb-doped MOCVD YBa2Cu3O7: A paradigm for pinning landscape control  

SciTech Connect

Immobilization of vortices, or flux pinning, is both an enduring scientific issue and one of the most important problems in optimizing high temperature superconductors (HTS) for commercial use. Here, we demonstrate a practical approach to the creation of a multi-modal flux pinning landscape in YBa2Cu3O7 (YBCO) films employing an industrially scalable metal organic chemical vapor deposition technique. Through controlled additions of Nb, we have achieved a novel distribution of crystallographic defects that immobilize (pin) vortices in the YBCO matrix. That is, with only the addition of a single dopant element, a tri-modal defect structure that threads through the YBCO matrix laterally (parallel to the ab planes of YBCO), vertically (parallel to the YBCO c-axis), and isotropically in the form of random spherical defects is induced. For optimally doped samples, the influence of these multi-modal nanocrystalline defect structures on the flux pinning properties manifests itself as a superior improvement in the critical current density (Jc) for all magnetic field orientations. The results demonstrate the possibility of achieving an ideal flux pinning landscape (from an orientation and strength viewpoint), which permits the design of HTS wires with fully-tuneable properties by processes suitable for large-scale manufacturing.

Aytug, Tolga [ORNL; Maroni, Victor A. [Argonne National Laboratory (ANL); Chen, Z [Argonne National Laboratory (ANL); Miller, Dean [Argonne National Laboratory (ANL); Kropft, Jeremy [Argonne National Laboratory (ANL); Zaluzec, Nestor J [ORNL; Zuev, Yuri L [ORNL; Specht, Eliot D [ORNL; Paranthaman, Mariappan Parans [ORNL

2012-01-01T23:59:59.000Z

231

Tri-State Synfuels Project Review: Volume 8. Commercial status of licensed process units. [Proposed Henderson, Kentucky coal to gasoline plant; licensed commercial processes  

DOE Green Energy (OSTI)

This document demonstrates the commercial status of the process units to be used in the Tri-State Synfuels Project at Henderson, Kentucky. The basic design philosophy as established in October, 1979, was to use the commercial SASOL II/III plants as a basis. This was changed in January 1982 to a plant configuration to produce gasoline via a methanol and methanol to gasoline process. To accomplish this change the Synthol, Oil workup and Chemical Workup Units were eliminated and replaced by Methanol Synthesis and Methanol to Gasoline Units. Certain other changes to optimize the Lurgi liquids processing eliminated the Tar Distillation and Naphtha Hydrotreater Units which were replaced by the Partial Oxidation Unit. The coals to be gasified are moderately caking which necessitates the installation of stirring mechanism in the Lurgi Dry Bottom gasifier. This work is in the demonstration phase. Process licenses either have been obtained or must be obtained for a number of processes to be used in the plant. The commercial nature of these processes is discussed in detail in the tabbed sections of this document. In many cases there is a list of commercial installations at which the licensed equipment is used.

Not Available

1982-06-01T23:59:59.000Z

232

Classification of the Colonic Polyps in CT-Colonography Using Region Covariance as Descriptor Features of Suspicious Regions  

Science Conference Proceedings (OSTI)

We present an algorithm to classify polyps in CT colonography images utilizing covariance matrices as object descriptors. Since these descriptors do not lie on a vector space, they cannot simply be fed to traditional machine learning tools such as support ... Keywords: CT colonography, Colonic polyp detection, Covariance descriptor

Niyazi Kilic; Olcay Kursun; Osman Nuri Ucan

2010-04-01T23:59:59.000Z

233

Concurrent segmentation of the prostate on MRI and CT via linked statistical shape models for radiotherapy planning  

Science Conference Proceedings (OSTI)

Purpose: Prostate gland segmentation is a critical step in prostate radiotherapy planning, where dose plans are typically formulated on CT. Pretreatment MRI is now beginning to be acquired at several medical centers. Delineation of the prostate on MRI is acknowledged as being significantly simpler to perform, compared to delineation on CT. In this work, the authors present a novel framework for building a linked statistical shape model (LSSM), a statistical shape model (SSM) that links the shape variation of a structure of interest (SOI) across multiple imaging modalities. This framework is particularly relevant in scenarios where accurate boundary delineations of the SOI on one of the modalities may not be readily available, or difficult to obtain, for training a SSM. In this work the authors apply the LSSM in the context of multimodal prostate segmentation for radiotherapy planning, where the prostate is concurrently segmented on MRI and CT. Methods: The framework comprises a number of logically connected steps. The first step utilizes multimodal registration of MRI and CT to map 2D boundary delineations of the prostate from MRI onto corresponding CT images, for a set of training studies. Hence, the scheme obviates the need for expert delineations of the gland on CT for explicitly constructing a SSM for prostate segmentation on CT. The delineations of the prostate gland on MRI and CT allows for 3D reconstruction of the prostate shape which facilitates the building of the LSSM. In order to perform concurrent prostate MRI and CT segmentation using the LSSM, the authors employ a region-based level set approach where the authors deform the evolving prostate boundary to simultaneously fit to MRI and CT images in which voxels are classified to be either part of the prostate or outside the prostate. The classification is facilitated by using a combination of MRI-CT probabilistic spatial atlases and a random forest classifier, driven by gradient and Haar features. Results: The authors acquire a total of 20 MRI-CT patient studies and use the leave-one-out strategy to train and evaluate four different LSSMs. First, a fusion-based LSSM (fLSSM) is built using expert ground truth delineations of the prostate on MRI alone, where the ground truth for the gland on CT is obtained via coregistration of the corresponding MRI and CT slices. The authors compare the fLSSM against another LSSM (xLSSM), where expert delineations of the gland on both MRI and CT are employed in the model building; xLSSM representing the idealized LSSM. The authors also compare the fLSSM against an exclusive CT-based SSM (ctSSM), built from expert delineations of the gland on CT alone. In addition, two LSSMs trained using trainee delineations (tLSSM) on CT are compared with the fLSSM. The results indicate that the xLSSM, tLSSMs, and the fLSSM perform equivalently, all of them out-performing the ctSSM. Conclusions: The fLSSM provides an accurate alternative to SSMs that require careful expert delineations of the SOI that may be difficult or laborious to obtain. Additionally, the fLSSM has the added benefit of providing concurrent segmentations of the SOI on multiple imaging modalities.

Chowdhury, Najeeb; Toth, Robert; Chappelow, Jonathan; Kim, Sung; Motwani, Sabin; Punekar, Salman; Lin Haibo; Both, Stefan; Vapiwala, Neha; Hahn, Stephen; Madabhushi, Anant

2012-04-15T23:59:59.000Z

234

A PET/CT directed, 3D ultrasound-guided biopsy system for prostate cancer  

Science Conference Proceedings (OSTI)

Prostate cancer affects 1 in 6 men in the USA. Systematic transrectal ultrasound (TRUS)-guided biopsy is the standard method for a definitive diagnosis of prostate cancer. However, this "blind" biopsy approach can miss at least 20% of prostate cancers. ... Keywords: 3D ultrasound imaging, PET/CT, image segmentation, imageguided biopsy, molecular imaging, nonrigid image registration, prostate cancer, wavelet transform

Baowei Fei; Viraj Master; Peter Nieh; Hamed Akbari; Xiaofeng Yang; Aaron Fenster; David Schuster

2011-09-01T23:59:59.000Z

235

Louisiana oyster CuLtCh ProjeCt General Project DescriPtion  

E-Print Network (OSTI)

secondary production. estiMateD cost The estimated cost to implement the Louisiana Oyster Cultch Project is $15,582,600. (Estimated costs for some of the projects were updated from those provided in the DERPLouisiana oyster CuLtCh ProjeCt General Project DescriPtion The Louisiana Oyster Cultch Project

236

Department of History, Yale University New Haven, CT 06520-8324  

E-Print Network (OSTI)

Dilemma': Making a Place for Historians in the Climate Change and Energy Debates," Environmental History History (undergraduate lecture) Energy in American History (undergraduate seminar) United States GlobalPaul Sabin Department of History, Yale University New Haven, CT 06520-8324 Telephone: (203) 436

237

The feasibility of head motion tracking in helical CT: A step toward motion correction  

Science Conference Proceedings (OSTI)

Purpose: To establish a practical and accurate motion tracking method for the development of rigid motion correction methods in helical x-ray computed tomography (CT). Methods: A commercially available optical motion tracking system provided 6 degrees of freedom pose measurements at 60 Hz. A 4 Multiplication-Sign 4 calibration matrix was determined to convert raw pose data acquired in tracker coordinates to a fixed CT coordinate system with origin at the isocenter of the scanner. Two calibration methods, absolute orientation (AO), and a new method based on image registration (IR), were compared by means of landmark analysis and correlation coefficient in phantom images coregistered using the derived motion transformations. Results: Transformations calculated using the IR-derived calibration matrix were found to be more accurate, with positional errors less than 0.5 mm (mean RMS), and highly correlated image voxel intensities. The AO-derived calibration matrix yielded larger mean RMS positional errors ( Asymptotically-Equal-To 1.0 mm), and poorer correlation coefficients. Conclusions: The authors have demonstrated the feasibility of accurate motion tracking for retrospective motion correction in helical CT. Their new IR-based calibration method based on image registration and function minimization was simpler to perform and delivered more accurate calibration matrices. This technique is a useful tool for future work on rigid motion correction in helical CT and potentially also other imaging modalities.

Kim, Jung-Ha [Medical Radiation Sciences, University of Sydney, NSW 2141 (Australia); Nuyts, Johan [Department of Nuclear Medicine, Katholieke Universiteit, Leuven, Belgium and Medical Imaging Research Center, Katholieke Universiteit, Leuven (Belgium); Kuncic, Zdenka [School of Physics, University of Sydney, NSW 2006 (Australia); Fulton, Roger [Medical Radiation Sciences, University of Sydney, NSW 2141 (Australia); School of Physics, University of Sydney, NSW 2006 (Australia); Department of Medical Physics, Westmead Hospital, Westmead, NSW 2145 (Australia)

2013-04-15T23:59:59.000Z

238

Robust Segmentation and Anatomical Labeling of the Airway Tree from Thoracic CT Scans  

Science Conference Proceedings (OSTI)

A method for automatic extraction and labeling of the airway tree from thoracic CT scans is presented and extensively evaluated on 150 scans of clinical dose, low dose and ultra-low dose data, in inspiration and expiration from both relatively healthy ...

Bram Ginneken; Wouter Baggerman; Eva M. Rikxoort

2008-09-01T23:59:59.000Z

239

The noise power spectrum in CT with direct fan beam reconstruction  

Science Conference Proceedings (OSTI)

The noise power spectrum (NPS) is a useful metric for understanding the noise content in images. To examine some unique properties of the NPS of fan beam CT, the authors derived an analytical expression for the NPS of fan beam CT and validated it with computer simulations. The nonstationary noise behavior of fan beam CT was examined by analyzing local regions and the entire field-of-view (FOV). This was performed for cases with uniform as well as nonuniform noise across the detector cells and across views. The simulated NPS from the entire FOV and local regions showed good agreement with the analytically derived NPS. The analysis shows that whereas the NPS of a large FOV in parallel beam CT (using a ramp filter) is proportional to frequency, the NPS with direct fan beam FBP reconstruction shows a high frequency roll off. Even in small regions, the fan beam NPS can show a sharp transition (discontinuity) at high frequencies. These effects are due to the variable magnification and therefore are more pronounced as the fan angle increases. For cases with nonuniform noise, the NPS can show the directional dependence and additional effects.

Baek, Jongduk; Pelc, Norbert J. [Department of Radiology, Stanford University, Stanford, California 94305 (United States); Department of Radiology, Stanford University, Stanford, California 94305 (United States); Department of Electrical Engineering, Stanford University, Stanford, California 94305 (United States) and Department of Bioengineering, Stanford University, Stanford, California 94305 (United States)

2010-05-15T23:59:59.000Z

240

CT-Guided Fiducial Placement for CyberKnife Stereotactic Radiosurgery: An Initial Experience  

Science Conference Proceedings (OSTI)

CyberKnife frameless image-guided radiosurgery has become a widely used system for parenchymal extracranial lesions. Gold fiducials are required for the planning and aiming of CyberKnife therapy. We report our initial experience and describe the technique of positioning tumor markers, under CT guidance. We conducted a retrospective review of 105 patients who were referred for CyberKnife stereotactic radiosurgery at Iatropolis CyberKnife Center in Athens. All patients underwent percutaneous fiducial placement via CT guidance. At the desired location, the 18-G needle was advanced into or near the tumor. Data collected included number and locations of fiducials placed and complications experienced to date. One hundred five patients underwent fiducial placement under CT guidance and a total number of 319 gold seeds were implanted. We experienced one episode of pneumothorax that required drainage, one mild pneumothorax, and three episodes of perifocal pulmonary hemorrhage. In conclusion, fiducial implantation under CT guidance appears to be a safe and efficient procedure, as long as it is performed by an experienced interventional radiologist.

Sotiropoulou, Evangelia ['Sotiria' General Hospital of Chest Diseases (Greece); Stathochristopoulou, Irene [Iatropolis CyberKnife Center (Greece); Stathopoulos, Konstantinos ['Sotiria' General Hospital of Chest Diseases (Greece); Verigos, Kosmas; Salvaras, Nikolaos [Iatropolis CyberKnife Center (Greece); Thanos, Loukas, E-mail: loutharad@yahoo.co ['Sotiria' General Hospital of Chest Diseases (Greece)

2010-06-15T23:59:59.000Z

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241

Clinical evaluation of a commercial orthopedic metal artifact reduction tool for CT simulations in radiation therapy  

SciTech Connect

Purpose: Severe artifacts in kilovoltage-CT simulation images caused by large metallic implants can significantly degrade the conspicuity and apparent CT Hounsfield number of targets and anatomic structures, jeopardize the confidence of anatomical segmentation, and introduce inaccuracies into the radiation therapy treatment planning process. This study evaluated the performance of the first commercial orthopedic metal artifact reduction function (O-MAR) for radiation therapy, and investigated its clinical applications in treatment planning. Methods: Both phantom and clinical data were used for the evaluation. The CIRS electron density phantom with known physical (and electron) density plugs and removable titanium implants was scanned on a Philips Brilliance Big Bore 16-slice CT simulator. The CT Hounsfield numbers of density plugs on both uncorrected and O-MAR corrected images were compared. Treatment planning accuracy was evaluated by comparing simulated dose distributions computed using the true density images, uncorrected images, and O-MAR corrected images. Ten CT image sets of patients with large hip implants were processed with the O-MAR function and evaluated by two radiation oncologists using a five-point score for overall image quality, anatomical conspicuity, and CT Hounsfield number accuracy. By utilizing the same structure contours delineated from the O-MAR corrected images, clinical IMRT treatment plans for five patients were computed on the uncorrected and O-MAR corrected images, respectively, and compared. Results: Results of the phantom study indicated that CT Hounsfield number accuracy and noise were improved on the O-MAR corrected images, especially for images with bilateral metal implants. The {gamma} pass rates of the simulated dose distributions computed on the uncorrected and O-MAR corrected images referenced to those of the true densities were higher than 99.9% (even when using 1% and 3 mm distance-to-agreement criterion), suggesting that dose distributions were clinically identical. In all patient cases, radiation oncologists rated O-MAR corrected images as higher quality. Formerly obscured critical structures were able to be visualized. The overall image quality and the conspicuity in critical organs were significantly improved compared with the uncorrected images: overall quality score (1.35 vs 3.25, P= 0.0022); bladder (2.15 vs 3.7, P= 0.0023); prostate and seminal vesicles/vagina (1.3 vs 3.275, P= 0.0020); rectum (2.8 vs 3.9, P= 0.0021). The noise levels of the selected ROIs were reduced from 93.7 to 38.2 HU. On most cases (8/10), the average CT Hounsfield numbers of the prostate/vagina on the O-MAR corrected images were closer to the referenced value (41.2 HU, an average measured from patients without metal implants) than those on the uncorrected images. High {gamma} pass rates of the five IMRT dose distribution pairs indicated that the dose distributions were not significantly affected by the CT image improvements. Conclusions: Overall, this study indicated that the O-MAR function can remarkably reduce metal artifacts and improve both CT Hounsfield number accuracy and target and critical structure visualization. Although there was no significant impact of the O-MAR algorithm on the calculated dose distributions, we suggest that O-MAR corrected images are more suitable for the entire treatment planning process by offering better anatomical structure visualization, improving radiation oncologists' confidence in target delineation, and by avoiding subjective density overrides of artifact regions on uncorrected images.

Li Hua; Noel, Camille; Chen, Haijian; Harold Li, H.; Low, Daniel; Moore, Kevin; Klahr, Paul; Michalski, Jeff; Gay, Hiram A.; Thorstad, Wade; Mutic, Sasa [Department of Radiation Oncology, Washington University, St. Louis, Missouri 63110 (United States); Department of Radiation Oncology, University of California Los Angeles, Los Angeles, California 90095 (United States); Department of Radiation Oncology, University of California San Diego, San Diego, California 92093 (United States); Philips Healthcare System, Cleveland, Ohio 44143 (United States); Department of Radiation Oncology, Washington University, St. Louis, Missouri 63110 (United States)

2012-12-15T23:59:59.000Z

242

Enlarged longitudinal dose profiles in cone-beam CT and the need for modified dosimetry  

SciTech Connect

In order to examine phantom length necessary to assess radiation dose delivered to patients in cone-beam CT with an enlarged beamwidth, we measured dose profiles in cylindrical phantoms of sufficient length using a prototype 256-slice CT-scanner developed at our institute. Dose profiles parallel to the rotation axis were measured at the central and peripheral positions in PMMA (polymethylmethacrylate) phantoms of 160 or 320 mm diameter and 900 mm length. For practical application, we joined unit cylinders (150 mm long) together to provide phantoms of 900 mm length. Dose profiles were measured with a pin photodiode sensor having a sensitive region of approximately 2.8x2.8 mm{sup 2} and 2.7 mm thickness. Beamwidths of the scanner were varied from 20 to 138 mm. Dose profile integrals (DPI) were calculated using the measured dose profiles for various beamwidths and integration ranges. For the body phantom (320-mm-diam phantom), 76% of the DPI was represented for a 20 mm beamwidth and 60% was represented for a 138 mm beamwidth if dose profiles were integrated over a 100 mm range, while more than 90% of the DPI was represented for beamwidths between 20 and 138 mm if integration was carried out over a 300 mm range. The phantom length and integration range for dosimetry of cone-beam CT needed to be more than 300 mm to represent more than 90% of the DPI for the body phantom with the beamwidth of more than 20 mm. Although we reached this conclusion using the prototype 256-slice CT-scanner, it may be applied to other multislice CT-scanners as well.

Mori, Shinichiro; Endo, Masahiro; Nishizawa, Kanae; Tsunoo, Takanori; Aoyama, Takahiko; Fujiwara, Hideaki; Murase, Kenya [National Institute of Radiological Sciences, Chiba 263-8555 (Japan); School of Health Sciences, Nagoya University, Nagoya 461-8673 (Japan); School of Allied Health Sciences, Faculty of Medicine, Osaka University, Osaka 565-0871 (Japan)

2005-04-01T23:59:59.000Z

243

Neutronic Analysis of the Burning of Transuranics in Fully Ceramic Micro-Encapsulated Tri-Isotropic Particle-Fuel in a PWR  

SciTech Connect

Calculations have been performed to assess the neutronic behavior of pins of Fully-Ceramic Micro-encapsulated (FCM) fuel in otherwise-conventional Pressurized Water Reactor (PWR) fuel pins. The FCM fuel contains transuranic (TRU) only oxide fuel in tri-isotropic (TRISO) particles with the TRU loading coming from the spent fuel of a conventional LWR after 5 years of cooling. Use of the TRISO particle fuel would provide an additional barrier to fission product release in the event of cladding failure. Depletion calculations were performed to evaluate reactivity-limited burnup of the TRU-only FCM fuel. These calculations showed that due to relatively little space available for fuel, the achievable burnup with these pins alone is quite small. Various reactivity parameters were also evaluated at each burnup step including moderator temperature coefficient (MTC), Doppler, and soluble boron worth. These were compared to reference UO2 and MOX unit cells. The TRU-only FCM fuel exhibits degraded MTC and Doppler coefficients relative to UO2 and MOX. Also, the reactivity effects of coolant voiding suggest that the behavior of this fuel would be similar to a MOX fuel of very high plutonium fraction, which are known to have positive void reactivity. In general, loading of TRU-only FCM fuel into an assembly without significant quantities of uranium presents challenges to the reactor design. However, if such FCM fuel pins are included in a heterogeneous assembly alongside LEU fuel pins, the overall reactivity behavior is dominated by the uranium pins while attractive TRU destruction performance levels in the TRU-only FCM fuel pins is. From this work, it is concluded that use of heterogeneous assemblies such as these appears feasible from a preliminary reactor physics standpoint.

Michael A. Pope; R. Sonat Sen; Abderrafi M. Ougouag; Gilles Youinou; Brian Boer

2012-11-01T23:59:59.000Z

244

Measurement of Effect of Chemical Reactions on the Hydrologic Properties of Fractured Glass Media Using a Tri-axial Flow and Transport Apparatus  

Science Conference Proceedings (OSTI)

Understanding the effect of chemical reactions on the hydrologic properties of sub-surface media is critical to many natural and engineered sub-surface systems. Methods and information for such characterization of fractured media are severely lacking. Influence of glass corrosion (precipitation and dissolution) reactions on fractured glass blocks HAN28 and LAWBP1, two candidate waste glass forms for a proposed immobilized low-activity waste (ILAW) disposal facility at the Hanford, WA site, was investigated. Flow and tracer transport experiments were conducted in such randomly and multiply fractured ILAW glass blocks, before and after subjecting them to corrosion using Vapor Hydration Testing (VHT) at 200 oC temperature and 200 psig (1379 KPa) pressure, causing the precipitation of alteration products. A tri-axial fractured media flow and transport experimental apparatus, which allows the simultaneous measurement of flow and transport properties and their anisotropy, has been designed and built for this purpose. Such apparatus for fractured media characterization are being reported in the literature only recently. Hydraulic properties of fractured blocks were measured in different orientations and along different cardinal directions, before and after glass corrosion reactions. Miscible displacement experiments using a non-reactive dye were also conducted, before and after glass corrosion reactions, to study the tracer transport behavior through such media. Initial efforts to analyze breakthrough curve (BTC) data using a 1D Advection Dispersion Equation (ADE) solution revealed that a different fractured media transport model may be necessary for such interpretation. It was found that glass reactions can have a significant influence on the hydrologic properties of fractured ILAW glass media. The methods and results are unique and useful to better understand the effect of chemical reactions on the hydrologic properties of fractured geomedia in general and glass media in particular.

Saripalli, Kanaka P.; Lindberg, Michael J.; Meyer, Philip D.

2006-09-15T23:59:59.000Z

245

Introduction Cystic fibrosis (CF) is the most common inherited dis-  

E-Print Network (OSTI)

with morbidity and mortality in patients with CF, the initial phases of gene therapy for this disorder to infection with these viruses. These include viral binding, endocytosis, endosomal processing, nuclear, College of Medicine, University of Iowa, Iowa City, Iowa, USA Address correspondence to: John F

Engelhardt, John F.

246

Resonance-DIS transition and low Q^2 phenomena  

SciTech Connect

Recent analyses of electromagnetic structure functions in the resonance region suggest that duality-violating higher twists are small above Q{sup 2} {approx} 1 GeV{sup 2}. We review duality at the resonance--scaling transition, both phenomenologically and in the context of a simple quark model. While most studies have focused on electromagnetic probes, we also discuss expectations for the workings of duality in neutrino scattering. Finally, we describe the transition of the structure functions to the photoproduction limit at Q{sup 2}=0.

W. Melnitchouk

2005-09-01T23:59:59.000Z

247

The Polarised Valence Quark Distribution from semi-inclusive DIS  

E-Print Network (OSTI)

The semi-inclusive difference asymmetry A^{h+ - h-} for hadrons of opposite charge has been measured by the COMPASS experiment at CERN. The data were collected in the years 2002-2004 using a 160 GeV polarised muon beam scattered off a large polarised 6-LiD target and cover the range 0.006 < x < 0.7 and 1 < Q^2 < 100 (GeV/c)^2. In leading order QCD (LO) the asymmetry A_d^{h+ - h-} measures the valence quark polarisation and provides an evaluation of the first moment of Delta u_v + Delta d_v which is found to be equal to 0.40 +- 0.07 (stat.) +- 0.05 (syst.) over the measured range of x at Q^2 = 10 (GeV/c)^2. When combined with the first moment of g_1^d previously measured on the same data, this result favours a non-symmetric polarisation of light quarks Delta u-bar = -Delta d-bar at a confidence level of two standard deviations, in contrast to the often assumed symmetric scenario Delta u-bar = Delta d-bar = Delta s-bar = Delta s.

Alekseev, M; Alexandrov, Yu; Alexeev, G D; Amoroso, A; Arbuzov, A; Badelek, B; Balestra, F; Ball, J; Barth, J; Baum, G; Bedfer, Y; Bernet, C; Bertini, R; Bettinelli, M; Birsa, R; Bisplinghoff, J; Bordalo, P; Bradamante, Franco; Bravar, A; Bressan, A; Brona, G; Burtin, E; Bussa, M P; Chapiro, A; Chiosso, M; Cicuttin, A; Colantoni, M; Costa, S; Crespo, M L; Dalla Torre, S; Dafni, T; Das, S; Das-Gupta, S S; De Masi, R; Dedek, N; Denisov, O Yu; Dhara, L; Daz, V; Dinkelbach, A M; Donskov, S V; Dorofeev, V A; Doshita, N; Duic, V; Dnnweber, W; Eversheim, P D; Eyrich, W; Fabro, M; Faessler, M; Falaleev, V; Ferrero, A; Ferrero, L; Finger, M; Fischer, H; Franco, C; Franz, J; Friedrich, J M; Frolov, V; Garfagnini, R; Gautheron, F; Gavrichtchouk, O P; Gazda, R; Gerassimov, S; Geyer, R; Giorgi, M; Gobbo, B; Grtz, S; Gorin, A M; Grabmuller, S; Grajek, O A; Grasso, A; Grube, B; Gushterski, R; Guskov, A; Haas, F; Hannappel, J; Von Harrach, D; Hasegawa, T; Heckmann, J; Hedicke, S; Heinsius, F H; Hermann, R; Hess, C; Hinterberger, F; Von Hodenberg, M; Horikawa, N; Horikawa, S; D'Hose, N; Ilgner, C; Ioukaev, A I; Ishimoto, S; Ivanov, O; Ivanshin, Yu; Iwata, T; Jahn, R; Janata, A; Jasinski, P; Joosten, R; Jouravlev, N I; Kabuss, E; Kang, D; Ketzer, B; Khaustov, G V; Khokhlov, Yu A; Kisselev, Yu; Klein, F; Klimaszewski, K; Koblitz, S; Koivuniemi, J H; Kolosov, V N; Komissarov, E V; Kondo, K; Knigsmann, K C; Konorov, I; Konstantinov, V F; Korentchenko, A S; Korzenev, A; Kotzinian, A M; Koutchinski, N A; Kuznetsov, O; Kral, A; Kravchuk, N P; Kroumchtein, Z V; Khn, R; Kunne, Fabienne; Kurek, K; Ladygin, M E; Lamanna, M; Le Goff, J M; Lednev, A A; Lehmann, A; Lichtenstadt, J; Liska, T; Ludwig, I; Maggiora, A; Maggiora, M; Magnon, A; Mallot, G K; Mann, A; Marchand, C; Marroncle, J; Martin, A; Marzec, J; Massmann, F; Matsuda, T; Maksimov, A N; Meyer, W; Mielech, A; Mikhailov, Yu V; Moinester, M A; Mutter, A; Nagaytsev, A; Nagel, T; Nahle, O; Nassalski, J; Neliba, S; Nerling, F; Neubert, S; Neyret, D P; Nikolaenko, V I; Nikolaev, K; Olshevskii, A G; Ostrick, M; Padee, A; Pagano, P; Panebianco, S; Panknin, R; Panzieri, D; Paul, S; Pawlukiewicz-Kaminska, B; Peshekhonov, D V; Peshekhonov, V D; Piragino, G; Platchkov, S; Pochodzalla, J; Polak, J; Polyakov, V A; Pretz, J; Procureur, S; Quintans, C; Rajotte, J F; Ramos, S; Rapatsky, V; Reicherz, G; Richter, A; Reggiani, D; Robinet, F; Rocco, E; Rondio, E; Rozhdestvensky, A M; Ryabchikov, D I; Samoylenko, V D; Sandacz, A; Santos, H; Sapozhnikov, M G; Sarkar, S; Savin, I A; Schiavon, Paolo; Schill, C; Schmitt, L; Schonmeier, P; Schroder, W; Shevchenko, O Yu; Siebert, H W; Silva, L; Sinha, L; Sissakian, A N; Slunecka, M; Smirnov, G I; Sosio, S; Sozzi, F; Srnka, A; Stinzing, F; Stolarski, M; Sugonyaev, V P; Sulc, M; Sulej, R; Tchalishev, V V; Tessaro, S; Tessarotto, F; Teufel, A; Tkatchev, L G; Venugopal, G; Virius, M; Vlassov, N V; Vossen, A; Webb, R; Weise, E; Weitzel, Q; Windmolders, R; Wirth, S; Wislicki, W; Zaremba, K; Zavertyaev, M; Zemlyanichkina, E; Zhao, J; Ziegler, R; Zvyagin, A

2008-01-01T23:59:59.000Z

248

Deuteron Spin Structure Functions in the Resonance and DIS Regions  

SciTech Connect

We derive relations between spin-dependent nuclear and nucleon g_1 and g_2 structure functions, valid at all Q^2, and in both the resonance and deep inelastic regions. We apply the formalism to the specific case of the deuteron, which is often used as a source of neutron structure information, and compare the size of the nuclear corrections calculated using exact kinematics and using approximations applicable at large Q^2.

S. Kulagin; W. Melnitchouk

2007-10-03T23:59:59.000Z

249

DIS from the AdS/CFT correspondence  

E-Print Network (OSTI)

We calculate the cross section of an ultra relativistic nucleus scattering on a qq^(bar) pair at large coupling in N=4 SUSY gauge theory. We study the problem in the context of the AdS/CFT correspondence. The nucleus is modeled as a gravitational shockwave in an AdS_5 background moving along the light cone. The dipole qq^(bar) is represented by a Wilson loop moving in the opposite direction. Due to the correspondence, calculating the scattering amplitude of the Wilson loop with the nucleus reduces to calculating the extreme value of the Nambu-Goto action for an open string. Its two end points are attached to the qq^(bar) respectively and it hangs in an AdS_5 shockwave spacetime. Six solutions are found two of which are physically meaningful. Both solutions predict that the saturation scale Q_s at high enough energies becomes energy independent; in particular it behaves as Q_s A^{1/3} where A is the atomic number. One solution predicts pomeron intercept alpha_p=2. However, there is a parameter window of r (dip...

Taliotis, Anastasios

2009-01-01T23:59:59.000Z

250

DisTec: Towards a Distributed System for Telecom Computing  

Science Conference Proceedings (OSTI)

The continued exponential growth in both the volume and the complexity of information, compared with the computing capacity of the silicon-based devices restricted by Moore's Law, is giving birth to a new challenge to the specific requirements of analysts, ...

Shengqi Yang; Bai Wang; Haizhou Zhao; Yuan Gao; Bin Wu

2009-11-01T23:59:59.000Z

251

Development of a dynamic flow imaging phantom for dynamic contrast-enhanced CT  

Science Conference Proceedings (OSTI)

Purpose: Dynamic contrast enhanced CT (DCE-CT) studies with modeling of blood flow and tissue perfusion are becoming more prevalent in the clinic, with advances in wide volume CT scanners allowing the imaging of an entire organ with sub-second image frequency and sub-millimeter accuracy. Wide-spread implementation of perfusion DCE-CT, however, is pending fundamental validation of the quantitative parameters that result from dynamic contrast imaging and perfusion modeling. Therefore, the goal of this work was to design and construct a novel dynamic flow imaging phantom capable of producing typical clinical time-attenuation curves (TACs) with the purpose of developing a framework for the quantification and validation of DCE-CT measurements and kinetic modeling under realistic flow conditions. Methods: The phantom is based on a simple two-compartment model and was printed using a 3D printer. Initial analysis of the phantom involved simple flow measurements and progressed to DCE-CT experiments in order to test the phantoms range and reproducibility. The phantom was then utilized to generate realistic input TACs. A phantom prediction model was developed to compute the input and output TACs based on a given set of five experimental (control) parameters: pump flow rate, injection pump flow rate, injection contrast concentration, and both control valve positions. The prediction model is then inversely applied to determine the control parameters necessary to generate a set of desired input and output TACs. A protocol was developed and performed using the phantom to investigate image noise, partial volume effects and CT number accuracy under realistic flow conditionsResults: This phantom and its surrounding flow system are capable of creating a wide range of physiologically relevant TACs, which are reproducible with minimal error between experiments ({sigma}/{mu} < 5% for all metrics investigated). The dynamic flow phantom was capable of producing input and output TACs using either step function based or typical clinical arterial input function (AIF) inputs. The measured TACs were in excellent agreement with predictions across all comparison metrics with goodness of fit (R{sup 2}) for the input function between 0.95 and 0.98, while the maximum enhancement differed by no more than 3.3%. The predicted output functions were similarly accurate producing R{sup 2} values between 0.92 and 0.99 and maximum enhancement to within 9.0%. The effect of ROI size on the arterial input function (AIF) was investigated in order to determine an operating range of ROI sizes which were minimally affected by noise for small dimensions and partial volume effects for large dimensions. It was possible to establish the measurement sensitivity of both the Toshiba (ROI radius range from 1.5 to 3.2 mm ''low dose'', 1.4 to 3.0 mm ''high dose'') and GE scanner (1.5 to 2.6 mm ''low dose'', 1.1 to 3.4 mm ''high dose''). This application of the phantom also provides the ability to evaluate the effect of the AIF error on kinetic model parameter predictions. Conclusions: The dynamic flow imaging phantom is capable of producing accurate and reproducible results which can be predicted and quantified. This results in a unique tool for perfusion DCE-CT validation under realistic flow conditions which can be applied not only to compare different CT scanners and imaging protocols but also to provide a ground truth across multimodality dynamic imaging given its MRI and PET compatibility.

Driscoll, B.; Keller, H.; Coolens, C. [Department of Radiation Physics, Princess Margaret Hospital, 610 University Avenue, Toronto, Ontario M5G 2M9 (Canada)

2011-08-15T23:59:59.000Z

252

Estimation of the weighted CTDI{sub {infinity}} for multislice CT examinations  

SciTech Connect

Purpose: The aim of this study was to examine the variations of CT dose index (CTDI) efficiencies, {epsilon}(CTDI{sub 100})=CTDI{sub 100}/CTDI{sub {infinity}}, with bowtie filters and CT scanner types. Methods: This was an extension of our previous study [Li, Zhang, and Liu, Phys. Med. Biol. 56, 5789-5803 (2011)]. A validated Monte Carlo program was used to calculate {epsilon}(CTDI{sub 100}) on a Siemens Somatom Definition scanner. The {epsilon}(CTDI{sub 100}) dependencies on tube voltages and beam widths were tested in previous studies. The influences of different bowtie filters and CT scanner types were examined in this work. The authors tested the variations of {epsilon}(CTDI{sub 100}) with bowtie filters on the Siemens Definition scanner. The authors also analyzed the published CTDI measurements of four independent studies on five scanners of four models from three manufacturers. Results: On the Siemens Definition scanner, the difference in {epsilon}(CTDI{sub W}) between using the head and body bowtie filters was 2.5% (maximum) in the CT scans of the 32-cm phantom, and 1.7% (maximum) in the CT scans of the 16-cm phantom. Compared with CTDI{sub W}, the weighted CTDI{sub {infinity}} increased by 30.5% (on average) in the 32-cm phantom, and by 20.0% (on average) in the 16-cm phantom. These results were approximately the same for 80-140 kV and 1-40 mm beam widths (4.2% maximum deviation). The differences in {epsilon}(CTDI{sub 100}) between the simulations and the direct measurements of four previous studies were 1.3%-5.0% at the center/periphery of the 16-cm/32-cm phantom (on average). Conclusions: Compared with CTDI{sub vol}, the equilibrium dose for large scan lengths is 30.5% higher in the 32-cm phantom, and is 20.0% higher in the 16-cm phantom. The relative increases are practically independent of tube voltages (80-140 kV), beam widths (up to 4 cm), and the CT scanners covered in this study.

Li Xinhua; Zhang Da; Liu, Bob [Division of Diagnostic Imaging Physics, Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts 02114 (United States)

2012-02-15T23:59:59.000Z

253

Value of PET/CT and MR Lymphography in Treatment of Prostate Cancer Patients With Lymph Node Metastases  

Science Conference Proceedings (OSTI)

Purpose: To determine the clinical value of two novel molecular imaging techniques: {sup 11}C-choline positron emission tomography (PET)/computed tomography (CT) and ferumoxtran-10 enhanced magnetic resonance imaging (magnetic resonance lymphography [MRL]) for lymph node (LN) treatment in prostate cancer (PCa) patients. Therefore, we evaluated the ability of PET/CT and MRL to assess the number, size, and location of LN metastases in patients with primary or recurrent PCa. Methods and Materials: A total of 29 patients underwent MRL and PET/CT for LN evaluation. The MRL and PET/CT data were analyzed independently. The number, size, and location of the LN metastases were determined. The location was described as within or outside the standard clinical target volume for elective pelvic irradiation as defined by the Radiation Therapy Oncology Group. Subsequently, the results from MRL and PET/CT were compared. Results: Of the 738 LNs visible on MRL, 151 were positive in 23 of 29 patients. Of the 132 LNs visible on PET/CT, 34 were positive in 13 of 29 patients. MRL detected significantly more positive LNs (p < 0.001) in more patients than PET/CT (p = 0.002). The mean diameter of the detected suspicious LNs on MRL was significantly smaller than those detected by PET/CT, 4.9 mm and 8.4 mm, respectively (p < 0.0001). In 14 (61%) of 23 patients, suspicious LNs were found outside the clinical target volume with MRL and in 4 (31%) of 13 patients with PET/CT. Conclusion: In patients with PCa, both molecular imaging techniques, MRL and {sup 11}C-choline PET/CT, can detect LNs suspicious for metastasis, irrespective of the existing size and shape criteria for CT and conventional magnetic resonance imaging. On MRL and PET/CT, 61% and 31% of the suspicious LNs were located outside the conventional clinical target volume. Therefore, these techniques could help to individualize treatment selection and enable image-guided radiotherapy for patients with PCa LN metastases.

Fortuin, Ansje S., E-mail: A.Fortuin@rad.umcn.nl [Department of Radiology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Deserno, Willem M.L.L.G. [Department of Radiology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Meijer, Hanneke J.M. [Department of Radiation Oncology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands)] [Department of Radiation Oncology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Jager, Gerrit J. [Department of Radiology, Jeroen Bosch Hospital's, Hertogenbosch (Netherlands)] [Department of Radiology, Jeroen Bosch Hospital's, Hertogenbosch (Netherlands); Takahashi, Satoru; Debats, Oscar A. [Department of Radiology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands)] [Department of Radiology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Reske, Sven N.; Schick, Christian [Department of Nuclear Medicine, University of Ulm, Ulm (Germany)] [Department of Nuclear Medicine, University of Ulm, Ulm (Germany); Krause, Bernd J. [Department of Nuclear Medicine, Technische Universitaet Muenchen, Muenchen (Germany)] [Department of Nuclear Medicine, Technische Universitaet Muenchen, Muenchen (Germany); Oort, Inge van; Witjes, Alfred J. [Department of Urology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands)] [Department of Urology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Hoogeveen, Yvonne L. [Department of Radiology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands)] [Department of Radiology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Lin, Emile N.J.Th. van [Department of Radiation Oncology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands); Barentsz, Jelle O. [Department of Radiology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands)] [Department of Radiology, Radboud University Nijmegen Medical Centre, Nijmegen (Netherlands)

2012-11-01T23:59:59.000Z

254

Comprehensive study of LASL Well C/T-2 Roosevelt Hot Springs KGRA, Utah, and applications to geothermal well logging  

DOE Green Energy (OSTI)

Utah State Geothermal Well 9-1 in the Roosevelt Hot Springs KGRA, Beaver County, Utah, has been donated by Phillips Petroleum Company for calibration and testing of well-logging equipment in the hot, corrosive, geothermal environment. It is the second Calibration/Test Well (C/T-2) in the Geothermal Log Interpretation Program. A study of cuttings and well logs from Well C/T-2 was completed. This synthesis and data presentation contains most of the subsurface geologic information needed to effect the total evaluation of geophysical logs acquired in this geothermal calibration/test well, C/T-2.

Glenn, W.E.; Hulen, J.B.; Nielson, D.L.

1981-02-01T23:59:59.000Z

255

Anatomical database generation for radiation transport modeling from computed tomography (CT) scan data  

SciTech Connect

Geometric models of the anatomy are used routinely in calculations of the radiation dose in organs and tissues of the body. Development of such models has been hampered by lack of detailed anatomical information on children, and models themselves have been limited to quadratic conic sections. This summary reviews the development of an image processing workstation used to extract anatomical information from routine diagnostic CT procedure. A standard IBM PC/AT microcomputer has been augmented with an automatically loading 9-track magnetic tape drive, an 8-bit 1024 {times} 1024 pixel graphics adapter/monitor/film recording package, a mouse/trackball assembly, dual 20 MB removable cartridge media, a 72 MB disk drive, and a printer. Software utilized by the workstation includes a Geographic Information System (modified for manipulation of CT images), CAD software, imaging software, and various modules to ease data transfer among the software packages. 5 refs., 3 figs.

Margle, S.M.; Tinnel, E.P.; Till, L.E.; Eckerman, K.F.; Durfee, R.C.

1989-01-01T23:59:59.000Z

256

Attenuation-based estimation of patient size for the purpose of size specific dose estimation in CT. Part II. Implementation on abdomen and thorax phantoms using cross sectional CT images and scanned projection radiograph images  

SciTech Connect

Purpose: To estimate attenuation using cross sectional CT images and scanned projection radiograph (SPR) images in a series of thorax and abdomen phantoms. Methods: Attenuation was quantified in terms of a water cylinder with cross sectional area of A{sub w} from both the CT and SPR images of abdomen and thorax phantoms, where A{sub w} is the area of a water cylinder that would absorb the same dose as the specified phantom. SPR and axial CT images were acquired using a dual-source CT scanner operated at 120 kV in single-source mode. To use the SPR image for estimating A{sub w}, the pixel values of a SPR image were calibrated to physical water attenuation using a series of water phantoms. A{sub w} and the corresponding diameter D{sub w} were calculated using the derived attenuation-based methods (from either CT or SPR image). A{sub w} was also calculated using only geometrical dimensions of the phantoms (anterior-posterior and lateral dimensions or cross sectional area). Results: For abdomen phantoms, the geometry-based and attenuation-based methods gave similar results for D{sub w}. Using only geometric parameters, an overestimation of D{sub w} ranging from 4.3% to 21.5% was found for thorax phantoms. Results for D{sub w} using the CT image and SPR based methods agreed with each other within 4% on average in both thorax and abdomen phantoms. Conclusions: Either the cross sectional CT or SPR images can be used to estimate patient attenuation in CT. Both are more accurate than use of only geometrical information for the task of quantifying patient attenuation. The SPR based method requires calibration of SPR pixel values to physical water attenuation and this calibration would be best performed by the scanner manufacturer.

Wang Jia; Christner, Jodie A.; Duan Xinhui; Leng Shuai; Yu Lifeng; McCollough, Cynthia H. [Department of Radiology, Mayo Clinic, Rochester, Minnesota 55905 (United States)

2012-11-15T23:59:59.000Z

257

Dosimetry of Y-90 Liquid Brachytherapy in a Dog with Osteosarcoma Using PET/CT  

E-Print Network (OSTI)

A novel Y-90 liquid brachytherapy strategy is currently being studied for the treatment of osteosarcoma using a preclinical translational model in dogs to assess its potential efficacy and toxicity. In this study, dosimetry calculations are performed for Y-90 liquid brachytherapy in a dog with osteosarcoma using the Geant4 Monte Carlo code. A total of 611.83 MBq Y-90 radiopharmaceutical is administered via direct injections, and the in vivo distribution of Y-90 is assessed using a time-of-flight (TOF) PET/CT scanner. A patient-specific geometry is built using anatomical data obtained from CT images. The material properties of tumor and surrounding tissues are calculated based on a CT number - electron density calibration. The Y-90 distribution is sampled in Geant4 from PET images using a collapsing 3-D rejection technique to determine the decay sites. Dose distributions in the tumor bed and surrounding tissues are calculated demonstrating significant heterogeneity with multiple hot spots at the injection sites. Dose volume histograms show about 33.9 percent of bone and tumor and 70.2 percent of bone marrow and trabecular bone receive a total dose over 200 Gy; about 3.2 percent of bone and tumor and 31.0 percent of bone marrow and trabecular bone receive a total dose of over 1000 Gy. Y-90 liquid brachytherapy has the potential to be used as an adjuvant therapy or for palliation purposes. Future work includes evaluation of pharmacokinetics of the Y-90 radiopharmaceutical, calibration of PET/CT scanners for the direct quantitative assessment of Y-90 activity concentration, and assessment of efficacy of the Y-90 liquid brachytherapy strategy.

Zhou, Jingjie

2011-05-01T23:59:59.000Z

258

x???N*A**? ZDK(mP?IH z *?CT"Hh?x*4* *??C*? ...  

Science Conference Proceedings (OSTI)

x???N*A**? ZDK(mP?IH?z?*?CT"Hh?x*4*?*??C*???;G@ PBJ}???????IUu????`o?1\\?*N????x

2011-03-02T23:59:59.000Z

259

CT based computerized identification and analysis of human airways: A review  

SciTech Connect

As one of the most prevalent chronic disorders, airway disease is a major cause of morbidity and mortality worldwide. In order to understand its underlying mechanisms and to enable assessment of therapeutic efficacy of a variety of possible interventions, noninvasive investigation of the airways in a large number of subjects is of great research interest. Due to its high resolution in temporal and spatial domains, computed tomography (CT) has been widely used in clinical practices for studying the normal and abnormal manifestations of lung diseases, albeit there is a need to clearly demonstrate the benefits in light of the cost and radiation dose associated with CT examinations performed for the purpose of airway analysis. Whereas a single CT examination consists of a large number of images, manually identifying airway morphological characteristics and computing features to enable thorough investigations of airway and other lung diseases is very time-consuming and susceptible to errors. Hence, automated and semiautomated computerized analysis of human airways is becoming an important research area in medical imaging. A number of computerized techniques have been developed to date for the analysis of lung airways. In this review, we present a summary of the primary methods developed for computerized analysis of human airways, including airway segmentation, airway labeling, and airway morphometry, as well as a number of computer-aided clinical applications, such as virtual bronchoscopy. Both successes and underlying limitations of these approaches are discussed, while highlighting areas that may require additional work.

Pu Jiantao; Gu Suicheng; Liu Shusen; Zhu Shaocheng; Wilson, David; Siegfried, Jill M.; Gur, David [Imaging Research Center, Department of Radiology, University of Pittsburgh, 3362 Fifth Avenue, Pittsburgh, Pennsylvania 15213 (United States); School of Computing, University of Utah, Salt Lake City, Utah 84112 (United States); Department of Radiology, Henan Provincial People's Hospital, Zhengzhou 450003 (China); Department of Medicine, University of Pittsburgh, 580 S. Aiken Avenue, Suite 400, Pittsburgh, Pennsylvania 15232 (United States); Department of Pharmacology and Chemical Biology, Hillman Cancer Center, Pittsburgh, Pennsylvania 15213 (United States); Imaging Research Center, Department of Radiology, University of Pittsburgh, 3362 Fifth Avenue, Pittsburgh, PA 15213 (United States)

2012-05-15T23:59:59.000Z

260

Detection sensitivity of x-ray CT imaging for NDE of green-state ceramics  

DOE Green Energy (OSTI)

Improved ceramic-processing methods that use pressure slip-casting and injection molding are being developed at Norton Advanced Ceramics, with a goal of producing reliable structural ceramics for advanced heat engines. Nondestructive evaluation (NDE) of ceramic parts at different stages of processing can provide useful diagnostic information to help improve processing techniques. For example, an evaluation of density gradients in as-cast green-body samples can be used to judge mold performance and make changes in mold design. Also, the ability to detect minute flaws (20 to 50 {mu}m), such as agglomerates, inclusions, and voids, in green-body, presintered, and densified parts is important in ensuring structural reliability of the final parts, because these flaws, above certain critical sizes, can lead to catastrophic failure. Three-dimensional microfocus X-ray computed tomography (CT) and nuclear magnetic resonance imaging (MRI) systems have been developed at Argonne National Laboratory (ANL) for application to quantitative NDE evaluation of ceramics. This paper evaluates the detection sensitivity of the ANL X-ray CT system when used to determine density gradients, inclusions, and voids in green-state Si{sub 3}N{sub 4} ceramics. A theoretical account of key system- and sample-related parameters affecting X-ray CT detection sensitivity is given, and results of experimental evaluation are presented. Density calibration phantoms and net-shape-formed tensile rods with seeded defects were used in the experimental evaluation of detection limits. 6 refs., 6 figs., 1 tab.

Gopalsami, N.; Rizo, P.; Ellingson, W.A. (Argonne National Lab., IL (United States)); Tracey, D.M. (Norton Co., Northboro, MA (United States). Advanced Ceramics Div.)

1991-01-01T23:59:59.000Z

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261

Coronary artery wall imaging in mice using osmium tetroxide and micro-computed tomography (micro-CT)  

SciTech Connect

The high spatial resolution of micro-computed tomography (micro-CT) is ideal for 3D imaging of coronary arteries in intact mouse heart specimens. Previously, micro-CT of mouse heart specimens utilized intravascular contrast agents that hardened within the vessel lumen and allowed a vascular cast to be made. However, for mouse coronary artery disease models, it is highly desirable to image coronary artery walls and highlight plaques. For this purpose, we describe an ex vivo contrast-enhanced micro-CT imaging technique based on tissue staining with osmium tetroxide (OsO{sub 4}) solution. As a tissue-staining contrast agent, OsO{sub 4} is retained in the vessel wall and surrounding tissue during the fixation process and cleared from the vessel lumens. Its high X-ray attenuation makes the artery wall visible in CT. Additionally, since OsO{sub 4} preferentially binds to lipids, it highlights lipid deposition in the artery wall. We performed micro-CT of heart specimens of 5- to 25-week-old C57BL/6 wild-type mice and 5- to 13-week-old apolipoprotein E knockout (apoE{sup -/-}) mice at 10 {mu}m resolution. The results show that walls of coronary arteries as small as 45 {mu}m in diameter are visible using a table-top micro-CT scanner. Similar image clarity was achieved with 1/2000th the scan time using a synchrotron CT scanner. In 13-week-old apoE mice, lipid-rich plaques are visible in the aorta. Our study shows that the combination of OsO{sub 4} and micro-CT permits the visualization of the coronary artery wall in intact mouse hearts.

Pai, Vinay M.; Kozlowski, Megan; Donahue, Danielle; Miller, Elishiah; Xiao, Xianghui; Chen, Marcus Y.; Yu, Zu-Xi; Connelly, Patricia; Jeffries, Kenneth; Wen, Han (NIH)

2012-05-10T23:59:59.000Z

262

CT calorimetry  

Science Conference Proceedings (OSTI)

... reactions can alter the temperature in various ways, producing a ... The four black items at right below the centimeter rule are ... That way, the immediate ...

2013-01-03T23:59:59.000Z

263

Virtual monochromatic imaging in dual-source dual-energy CT: Radiation dose and image quality  

Science Conference Proceedings (OSTI)

Purpose: To evaluate the image quality of virtual monochromatic images synthesized from dual-source dual-energy computed tomography (CT) in comparison with conventional polychromatic single-energy CT for the same radiation dose. Methods: In dual-energy CT, besides the material-specific information, one may also synthesize monochromatic images at different energies, which can be used for routine diagnosis similar to conventional polychromatic single-energy images. In this work, the authors assessed whether virtual monochromatic images generated from dual-source CT scanners had an image quality similar to that of polychromatic single-energy images for the same radiation dose. First, the authors provided a theoretical analysis of the optimal monochromatic energy for either the minimum noise level or the highest iodine contrast to noise ratio (CNR) for a given patient size and dose partitioning between the low- and high-energy scans. Second, the authors performed an experimental study on a dual-source CT scanner to evaluate the noise and iodine CNR in monochromatic images. A thoracic phantom with three sizes of attenuating rings was used to represent four adult sizes. For each phantom size, three dose partitionings between the low-energy (80 kV) and the high-energy (140 kV) scans were used in the dual-energy scan. Monochromatic images at eight energies (40 to 110 keV) were generated for each scan. Phantoms were also scanned at each of the four polychromatic single energy (80, 100, 120, and 140 kV) with the same radiation dose. Results: The optimal virtual monochromatic energy depends on several factors: phantom size, partitioning of the radiation dose between low- and high-energy scans, and the image quality metrics to be optimized. With the increase of phantom size, the optimal monochromatic energy increased. With the increased percentage of radiation dose on the low energy scan, the optimal monochromatic energy decreased. When maximizing the iodine CNR in monochromatic images, the optimal energy was lower than that when minimizing noise level. When the total radiation dose was equally distributed between low and high energy in dual-energy scans, for minimum noise, the optimal energies were 68, 71, 74, and 77 keV for small, medium, large, and extra-large (xlarge) phantoms, respectively; for maximum iodine CNR, the optimal energies were 66, 68, 70, 72 keV. With the optimal monochromatic energy, the noise level was similar to and the CNR was better than that in a single-energy scan at 120 kV for the same radiation dose. Compared to an 80 kV scan, however, the iodine CNR in monochromatic images was lower for the small, medium, and large phantoms. Conclusions: In dual-source dual-energy CT, optimal virtual monochromatic energy depends on patient size, dose partitioning, and the image quality metric optimized. With the optimal monochromatic energy, the noise level was similar to and the iodine CNR was better than that in 120 kV images for the same radiation dose. Compared to single-energy 80 kV images, the iodine CNR in virtual monochromatic images was lower for small to large phantom sizes.

Yu Lifeng; Christner, Jodie A.; Leng Shuai; Wang Jia; Fletcher, Joel G.; McCollough, Cynthia H. [Department of Radiology, Mayo Clinic, Rochester, Minnesota 55905 (United States)

2011-12-15T23:59:59.000Z

264

Reference-free ground truth metric for metal artifact evaluation in CT images  

SciTech Connect

Purpose: In computed tomography (CT), metal objects in the region of interest introduce data inconsistencies during acquisition. Reconstructing these data results in an image with star shaped artifacts induced by the metal inconsistencies. To enhance image quality, the influence of the metal objects can be reduced by different metal artifact reduction (MAR) strategies. For an adequate evaluation of new MAR approaches a ground truth reference data set is needed. In technical evaluations, where phantoms can be measured with and without metal inserts, ground truth data can easily be obtained by a second reference data acquisition. Obviously, this is not possible for clinical data. Here, an alternative evaluation method is presented without the need of an additionally acquired reference data set. Methods: The proposed metric is based on an inherent ground truth for metal artifacts as well as MAR methods comparison, where no reference information in terms of a second acquisition is needed. The method is based on the forward projection of a reconstructed image, which is compared to the actually measured projection data. Results: The new evaluation technique is performed on phantom and on clinical CT data with and without MAR. The metric results are then compared with methods using a reference data set as well as an expert-based classification. It is shown that the new approach is an adequate quantification technique for artifact strength in reconstructed metal or MAR CT images. Conclusions: The presented method works solely on the original projection data itself, which yields some advantages compared to distance measures in image domain using two data sets. Beside this, no parameters have to be manually chosen. The new metric is a useful evaluation alternative when no reference data are available.

Kratz, Baerbel; Ens, Svitlana; Mueller, Jan; Buzug, Thorsten M. [Institute of Medical Engineering, University of Luebeck, 23538 Luebeck (Germany)

2011-07-15T23:59:59.000Z

265

A robust geometry estimation method for spiral, sequential and circular cone-beam micro-CT  

Science Conference Proceedings (OSTI)

Purpose: The authors propose a novel method for misalignment estimation of micro-CT scanners using an adaptive genetic algorithm. Methods: The proposed algorithm is able to estimate the rotational geometry, the direction vector of table movement and the displacement between different imaging threads of a dual source or even multisource scanner. The calibration procedure does not rely on dedicated calibration phantoms and a sequence scan of a single metal bead is sufficient to geometrically calibrate the whole imaging system for spiral, sequential, and circular scan protocols. Dual source spiral and sequential scan protocols in micro-computed tomography result in projection data that-besides the source and detector positions and orientations-also require a precise knowledge of the table direction vector to be reconstructed properly. If those geometric parameters are not known accurately severe artifacts and a loss in spatial resolution appear in the reconstructed images as long as no geometry calibration is performed. The table direction vector is further required to ensure that consecutive volumes of a sequence scan can be stitched together and to allow the reconstruction of spiral data at all. Results: The algorithm's performance is evaluated using simulations of a micro-CT system with known geometry and misalignment. To assess the quality of the algorithm in a real world scenario the calibration of a micro-CT scanner is performed and several reconstructions with and without geometry estimation are presented. Conclusions: The results indicate that the algorithm successfully estimates all geometry parameters, misalignment artifacts in the reconstructed volumes vanish, and the spatial resolution is increased as can be shown by the evaluation of modulation transfer function measurements.

Sawall, Stefan; Knaup, Michael; Kachelriess, Marc [Institute of Medical Physics (IMP), University of Erlangen-Nuernberg, 91052 Erlangen (Germany); Institute of Medical Physics (IMP), University of Erlangen-Nuernberg, 91052 Erlangen (Germany) and Medical Physics in Radiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg (Germany)

2012-09-15T23:59:59.000Z

266

Improving best-phase image quality in cardiac CT by motion correction with MAM optimization  

SciTech Connect

Purpose: Research in image reconstruction for cardiac CT aims at using motion correction algorithms to improve the image quality of the coronary arteries. The key to those algorithms is motion estimation, which is currently based on 3-D/3-D registration to align the structures of interest in images acquired in multiple heart phases. The need for an extended scan data range covering several heart phases is critical in terms of radiation dose to the patient and limits the clinical potential of the method. Furthermore, literature reports only slight quality improvements of the motion corrected images when compared to the most quiet phase (best-phase) that was actually used for motion estimation. In this paper a motion estimation algorithm is proposed which does not require an extended scan range but works with a short scan data interval, and which markedly improves the best-phase image quality. Methods: Motion estimation is based on the definition of motion artifact metrics (MAM) to quantify motion artifacts in a 3-D reconstructed image volume. The authors use two different MAMs, entropy, and positivity. By adjusting the motion field parameters, the MAM of the resulting motion-compensated reconstruction is optimized using a gradient descent procedure. In this way motion artifacts are minimized. For a fast and practical implementation, only analytical methods are used for motion estimation and compensation. Both the MAM-optimization and a 3-D/3-D registration-based motion estimation algorithm were investigated by means of a computer-simulated vessel with a cardiac motion profile. Image quality was evaluated using normalized cross-correlation (NCC) with the ground truth template and root-mean-square deviation (RMSD). Four coronary CT angiography patient cases were reconstructed to evaluate the clinical performance of the proposed method. Results: For the MAM-approach, the best-phase image quality could be improved for all investigated heart phases, with a maximum improvement of the NCC value by 100% and of the RMSD value by 81%. The corresponding maximum improvements for the registration-based approach were 20% and 40%. In phases with very rapid motion the registration-based algorithm obtained better image quality, while the image quality of the MAM algorithm was superior in phases with less motion. The image quality improvement of the MAM optimization was visually confirmed for the different clinical cases. Conclusions: The proposed method allows a software-based best-phase image quality improvement in coronary CT angiography. A short scan data interval at the target heart phase is sufficient, no additional scan data in other cardiac phases are required. The algorithm is therefore directly applicable to any standard cardiac CT acquisition protocol.

Rohkohl, Christopher; Bruder, Herbert; Stierstorfer, Karl [Siemens AG, Healthcare Sector, Siemensstrasse 1, 91301 Forchheim (Germany); Flohr, Thomas [Siemens AG, Healthcare Sector, Siemensstrasse 1, 91301 Forchheim (Germany); Institute of Diagnostic Radiology, Eberhard Karls University, Hoppe-Seyler-Str. 3, 72076 Tuebingen (Germany)

2013-03-15T23:59:59.000Z

267

On proton CT reconstruction using MVCT-converted virtual proton projections  

Science Conference Proceedings (OSTI)

Purpose: To describe a novel methodology of converting megavoltage x-ray projections into virtual proton projections that are otherwise missing due to the proton range limit. These converted virtual proton projections can be used in the reconstruction of proton computed tomography (pCT). Methods: Relations exist between proton projections and multispectral megavoltage x-ray projections for human tissue. Based on these relations, these tissues can be categorized into: (a) adipose tissue; (b) nonadipose soft tissues; and (c) bone. These three tissue categories can be visibly identified on a regular megavoltage x-ray computed tomography (MVCT) image. With an MVCT image and its projection data available, the x-ray projections through heterogeneous anatomy can be converted to the corresponding proton projections using predetermined calibration curves for individual materials, aided by a coarse segmentation on the x-ray CT image. To show the feasibility of this approach, mathematical simulations were carried out. The converted proton projections, plotted on a proton sinogram, were compared to the simulated ground truth. Proton stopping power images were reconstructed using either the virtual proton projections only or a blend of physically available proton projections and virtual proton projections that make up for those missing due to the range limit. These images were compared to a reference image reconstructed from theoretically calculated proton projections. Results: The converted virtual projections had an uncertainty of {+-}0.8% compared to the calculated ground truth. Proton stopping power images reconstructed using a blend of converted virtual projections (48%) and physically available projections (52%) had an uncertainty of {+-}0.86% compared with that reconstructed from theoretically calculated projections. Reconstruction solely from converted virtual proton projections had an uncertainty of {+-}1.1% compared with that reconstructed from theoretical projections. If these images are used for treatment planning, the average proton range uncertainty is estimated to be less than 1.5% for an imaging dose in the milligray range. Conclusions: The proposed method can be used to convert x-ray projections into virtual proton projections. The converted proton projections can be blended with existing proton projections or can be used solely for pCT reconstruction, addressing the range limit problem of pCT using current therapeutic proton machines.

Wang Dongxu; Mackie, T. Rockwell; Tome, Wolfgang A. [Department of Medical Physics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53705 and Department of Radiation Oncology, University of Iowa Hospitals and Clinics, Iowa City, Iowa 52242 (United States); Department of Medical Physics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53705 and Morgridge Institute of Research, University of Wisconsin, Madison, Wisconsin 53715 (United States); Department of Medical Physics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53705 and Oncophysics Institute, Albert Einstein College of Medicine, Yeshiva University, Bronx, New York 10461 (United States)

2012-06-15T23:59:59.000Z

268

Quantitative comparison of noise texture across CT scanners from different manufacturers  

SciTech Connect

Purpose: To quantitatively compare noise texture across computed tomography (CT) scanners from different manufacturers using the noise power spectrum (NPS). Methods: The American College of Radiology CT accreditation phantom (Gammex 464, Gammex, Inc., Middleton, WI) was imaged on two scanners: Discovery CT 750HD (GE Healthcare, Waukesha, WI), and SOMATOM Definition Flash (Siemens Healthcare, Germany), using a consistent acquisition protocol (120 kVp, 0.625/0.6 mm slice thickness, 250 mAs, and 22 cm field of view). Images were reconstructed using filtered backprojection and a wide selection of reconstruction kernels. For each image set, the 2D NPS were estimated from the uniform section of the phantom. The 2D spectra were normalized by their integral value, radially averaged, and filtered by the human visual response function. A systematic kernel-by-kernel comparison across manufacturers was performed by computing the root mean square difference (RMSD) and the peak frequency difference (PFD) between the NPS from different kernels. GE and Siemens kernels were compared and kernel pairs that minimized the RMSD and |PFD| were identified. Results: The RMSD (|PFD|) values between the NPS of GE and Siemens kernels varied from 0.01 mm{sup 2} (0.002 mm{sup -1}) to 0.29 mm{sup 2} (0.74 mm{sup -1}). The GE kernels 'Soft,''Standard,''Chest,' and 'Lung' closely matched the Siemens kernels 'B35f,''B43f,''B41f,' and 'B80f' (RMSD < 0.05 mm{sup 2}, |PFD| < 0.02 mm{sup -1}, respectively). The GE 'Bone,''Bone+,' and 'Edge' kernels all matched most closely with Siemens 'B75f' kernel but with sizeable RMSD and |PFD| values up to 0.18 mm{sup 2} and 0.41 mm{sup -1}, respectively. These sizeable RMSD and |PFD| values corresponded to visually perceivable differences in the noise texture of the images. Conclusions: It is possible to use the NPS to quantitatively compare noise texture across CT systems. The degree to which similar texture across scanners could be achieved varies and is limited by the kernels available on each scanner.

Solomon, Justin B.; Christianson, Olav; Samei, Ehsan [Carl E. Ravin Advanced Imaging Laboratories and Clinical Imaging Physics Group, Department of Radiology, Medical Physics Graduate Program, Duke University Medical Center, Durham, North Carolina 27705 (United States); Carl E. Ravin Advanced Imaging Laboratories and Clinical Imaging Physics Group, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Carl E. Ravin Advanced Imaging Laboratories and Clinical Imaging Physics Group, Medical Physics Graduate Program, Departments of Radiology, Physics, Biomedical Engineering, and Electrical and Computer Engineering, Duke University, Durham, North Carolina 27705 (United States)

2012-10-15T23:59:59.000Z

269

"2. Craig","Coal","Tri-State G & T Assn, Inc",1304 "3. Fort St Vrain","Gas","Public Service Co of Colorado",969  

U.S. Energy Information Administration (EIA) Indexed Site

Colorado" Colorado" "1. Comanche","Coal","Public Service Co of Colorado",1426 "2. Craig","Coal","Tri-State G & T Assn, Inc",1304 "3. Fort St Vrain","Gas","Public Service Co of Colorado",969 "4. Cherokee","Coal","Public Service Co of Colorado",717 "5. Rawhide","Coal","Platte River Power Authority",666 "6. Rocky Mountain Energy Center","Gas","Rocky Mountain Energy Ctr LLC",601 "7. Pawnee","Coal","Public Service Co of Colorado",505 "8. Front Range Power Project","Gas","Colorado Springs City of",462 "9. Hayden","Coal","Public Service Co of Colorado",446

270

Preliminary study of the oil shales of the Green River formation in the tri-state area of Colorado, Utah, and Wyoming to investigate their utility for disposal of radioactive waste  

SciTech Connect

Results are presented of a preliminary study of the oil shales of the Green River formation in the tri-state area of Colorado, Utah, and Wyoming to investigate their utility for possible disposal of radioactive waste material. The objective of this study was to make a preliminary investigation and to obtain a broad overview of the physical and economic factors which would have an effect on the suitability of the oil shale formations for possible disposal of radioactive waste material. These physical and economic factors are discussed in sections on magnitude of the oil shales, waste disposal relations with oil mining, cavities requirements, hydrological aspects, and study requirements. (JRD)

1975-05-01T23:59:59.000Z

271

AAPM Task Group 108: PET and PET/CT Shielding Requirements  

SciTech Connect

The shielding of positron emission tomography (PET) and PET/CT (computed tomography) facilities presents special challenges. The 0.511 MeV annihilation photons associated with positron decay are much higher energy than other diagnostic radiations. As a result, barrier shielding may be required in floors and ceilings as well as adjacent walls. Since the patient becomes the radioactive source after the radiopharmaceutical has been administered, one has to consider the entire time that the subject remains in the clinic. In this report we present methods for estimating the shielding requirements for PET and PET/CT facilities. Information about the physical properties of the most commonly used clinical PET radionuclides is summarized, although the report primarily refers to fluorine-18. Typical PET imaging protocols are reviewed and exposure rates from patients are estimated including self-attenuation by body tissues and physical decay of the radionuclide. Examples of barrier calculations are presented for controlled and noncontrolled areas. Shielding for adjacent rooms with scintillation cameras is also discussed. Tables and graphs of estimated transmission factors for lead, steel, and concrete at 0.511 MeV are also included. Meeting the regulatory limits for uncontrolled areas can be an expensive proposition. Careful planning with the equipment vendor, facility architect, and a qualified medical physicist is necessary to produce a cost effective design while maintaining radiation safety standards.

Madsen, Mark T.; Anderson, Jon A.; Halama, James R. [Radiology, University of Iowa (United States)] (and others)

2006-01-15T23:59:59.000Z

272

Percutaneous Extraction of Cement Leakage After Vertebroplasty Under CT and Fluoroscopy Guidance: A New Technique  

SciTech Connect

Purpose: We report a new minimally invasive technique of extraction of cement leakage following percutaneous vertebroplasty in adults. Methods: Seven adult patients (five women, two men; mean age: 81 years) treated for vertebral compression fractures by percutaneous vertebroplasty had cement leakage into perivertebral soft tissues along the needle route. Immediately after vertebroplasty, the procedure of extraction was performed under computed tomography (CT) and fluoroscopy guidance: a Chiba needle was first inserted using the same route as the vertebroplasty until contact was obtained with the cement fragment. This needle was then used as a guide for an 11-gauge Trocar t'am (Thiebaud, France). After needle withdrawal, a 13-gauge endoscopy clamp was inserted through the cannula to extract the cement fragments. The whole procedure was performed under local anesthesia. Results: In each patient, all cement fragments were withdrawn within 10 min, without complication. Conclusions: This report suggests that this CT- and fluoroscopy-guided percutaneous technique of extraction could reduce the rate of cement leakage-related complications.

Amoretti, Nicolas, E-mail: amorettinicolas@yahoo.fr; Huwart, Laurent, E-mail: huwart.laurent@wanadoo.fr [Centre Hospitalo-Universitaire de Nice, Department of Radiology (France)

2012-12-15T23:59:59.000Z

273

Detective quantum efficiency of CT reconstruction: the detection of small objects  

SciTech Connect

The loss of detection sensitivity incurred by any stage of image processing may normally be characterized by the frequency dependence of the detective quantum efficiency (DQE) of that stage of processing, provided the image is represented in continuous coordinates. However, limitations to the DQE concept arise when discretely sampled projection data are used to obtain discretely sampled computed tomographic (CT) reconstructions. The source of these limitations is the aliasing produced by the discrete sampling which mixes contributions from various frequencies. An associated problem is that the signal-to-noise ratio (SNR) for the detection of an object can depend upon the position of the object relative to the discrete reconstruction pixels. The effective SNR for discrete images must take into account this variation. While there may be no loss in the detection SNR for reconstructions in continuous coordinates (DQE = 100%), a reduction in the SNR will result from aliasing for discrete reconstructions. A simple one-dimensional model elucidates the characteristics of discrete CT reconstruction.

Hanson, K.M.

1979-01-01T23:59:59.000Z

274

CT-Guided Percutaneous Fine-Needle Aspiration Biopsy of the Inferior Vena Cava Wall: A Posterior Coaxial Approach  

Science Conference Proceedings (OSTI)

A 72-year-old man was referred to our department with an incidentally diagnosed bronchogenic carcinoma of the right upper lobe. Positron emission tomography (PET) combined with computed tomography (PET-CT) revealed an unexpected hot spot in the ventral wall of the infrarenal segment of the inferior vena cava (IVC). Diagnostic biopsy of this lesion was performed under CT guidance with semiautomated 20G fine-needle aspiration (FNA) through a 19G coaxial needle. Cytology revealed few carcinoma cells, which led to the remarkable diagnosis of a distant metastasis to the IVC wall. Both the immediate postinterventional CT control and the further surveillance period of the patient were unremarkable; in particular, no signs of bleeding complications were detected. We conclude that coaxial FNA of an IVC wall lesion is technically feasible and may even help diagnose distant metastasis.

Kos, Sebastian, E-mail: skos@gmx.de; Bilecen, Deniz [University Hospital Basel, Institute of Radiology (Switzerland); Baumhoer, Daniel [University Hospital Basel, Institute of Pathology (Switzerland); Guillaume, Nicolas [University Hospital Basel, Institute of Nuclear Medicine (Switzerland); Jacob, Augustinus L. [University Hospital Basel, Institute of Radiology (Switzerland)

2010-02-15T23:59:59.000Z

275

Segmenting CT prostate images using population and patient-specific statistics for radiotherapy  

SciTech Connect

Purpose: In the segmentation of sequential treatment-time CT prostate images acquired in image-guided radiotherapy, accurately capturing the intrapatient variation of the patient under therapy is more important than capturing interpatient variation. However, using the traditional deformable-model-based segmentation methods, it is difficult to capture intrapatient variation when the number of samples from the same patient is limited. This article presents a new deformable model, designed specifically for segmenting sequential CT images of the prostate, which leverages both population and patient-specific statistics to accurately capture the intrapatient variation of the patient under therapy. Methods: The novelty of the proposed method is twofold: First, a weighted combination of gradient and probability distribution function (PDF) features is used to build the appearance model to guide model deformation. The strengths of each feature type are emphasized by dynamically adjusting the weight between the profile-based gradient features and the local-region-based PDF features during the optimization process. An additional novel aspect of the gradient-based features is that, to alleviate the effect of feature inconsistency in the regions of gas and bone adjacent to the prostate, the optimal profile length at each landmark is calculated by statistically investigating the intensity profile in the training set. The resulting gradient-PDF combined feature produces more accurate and robust segmentations than general gradient features. Second, an online learning mechanism is used to build shape and appearance statistics for accurately capturing intrapatient variation. Results: The performance of the proposed method was evaluated on 306 images of the 24 patients. Compared to traditional gradient features, the proposed gradient-PDF combination features brought 5.2% increment in the success ratio of segmentation (from 94.1% to 99.3%). To evaluate the effectiveness of online learning mechanism, the authors carried out a comparison between partial online update strategy and full online update strategy. Using the full online update strategy, the mean DSC was improved from 86.6% to 89.3% with 2.8% gain. On the basis of full online update strategy, the manual modification before online update strategy was introduced and tested, the best performance was obtained; here, the mean DSC and the mean ASD achieved 92.4% and 1.47 mm, respectively. Conclusions: The proposed prostate segmentation method provided accurate and robust segmentation results for CT images even under the situation where the samples of patient under radiotherapy were limited. A conclusion that the proposed method is suitable for clinical application can be drawn.

Feng, Qianjin; Foskey, Mark; Chen Wufan; Shen Dinggang [Biomedical Engineering College, South Medical University, Guangzhou (China) and Department of Radiology, University of North Carolina, Chapel Hill, North Carolina 27510 (United States); Department of Radiation Oncology, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Biomedical Engineering College, South Medical University, Guangzhou 510510 (China); Department of Radiology, University of North Carolina, Chapel Hill, North Carolina 27510 (United States)

2010-08-15T23:59:59.000Z

276

Predicting the fidelity of JPEG2000 compressed CT images using DICOM header information  

Science Conference Proceedings (OSTI)

Purpose: To propose multiple logistic regression (MLR) and artificial neural network (ANN) models constructed using digital imaging and communications in medicine (DICOM) header information in predicting the fidelity of Joint Photographic Experts Group (JPEG) 2000 compressed abdomen computed tomography (CT) images. Methods: Our institutional review board approved this study and waived informed patient consent. Using a JPEG2000 algorithm, 360 abdomen CT images were compressed reversibly (n = 48, as negative control) or irreversibly (n = 312) to one of different compression ratios (CRs) ranging from 4:1 to 10:1. Five radiologists independently determined whether the original and compressed images were distinguishable or indistinguishable. The 312 irreversibly compressed images were divided randomly into training (n = 156) and testing (n = 156) sets. The MLR and ANN models were constructed regarding the DICOM header information as independent variables and the pooled radiologists' responses as dependent variable. As independent variables, we selected the CR (DICOM tag number: 0028, 2112), effective tube current-time product (0018, 9332), section thickness (0018, 0050), and field of view (0018, 0090) among the DICOM tags. Using the training set, an optimal subset of independent variables was determined by backward stepwise selection in a four-fold cross-validation scheme. The MLR and ANN models were constructed with the determined independent variables using the training set. The models were then evaluated on the testing set by using receiver-operating-characteristic (ROC) analysis regarding the radiologists' pooled responses as the reference standard and by measuring Spearman rank correlation between the model prediction and the number of radiologists who rated the two images as distinguishable. Results: The CR and section thickness were determined as the optimal independent variables. The areas under the ROC curve for the MLR and ANN predictions were 0.91 (95% CI; 0.86, 0.95) and 0.92 (0.87, 0.96), respectively. The correlation coefficients of the MLR and ANN predictions with the number of radiologists who responded as distinguishable were 0.76 (0.69, 0.82, p < 0.001) and 0.78 (0.71, 0.83, p < 0.001), respectively. Conclusions: The MLR and ANN models constructed using the DICOM header information offer promise in predicting the fidelity of JPEG2000 compressed abdomen CT images.

Kim, Kil Joong; Kim, Bohyoung; Lee, Hyunna; Choi, Hosik; Jeon, Jong-June; Ahn, Jeong-Hwan; Lee, Kyoung Ho [Department of Radiation Applied Life Science, Seoul National University College of Medicine, 28 Yongon-dong, Chongno-gu, Seoul, 110-744 (Korea, Republic of); School of Computer Science and Engineering, Seoul National University, 599 Kwanak-Ro, Kwanak-Gu, Seoul, 151-742 (Korea, Republic of); Department of Informational Statistics, Hoseo University, 165, Sechul-ri, Baebang-myeon, Asan-si, Chungcheongnam-do, 336-795 (Korea, Republic of); Department of Statistics, Seoul National University, 599 Kwanak-Ro, Kwanak-Gu, Seoul, 151-742 (Korea, Republic of); Korean Intellectual Property Office, Government Complex-Daejeon, 139 Seonsa-ro, Seo-gu, Daejeon, 302-701 (Korea, Republic of); Department of Radiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Institute of Radiation Medicine, and Seoul National University Medical Research Center, 300 Gumi-dong, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707 (Korea, Republic of)

2011-12-15T23:59:59.000Z

277

DOE Challenge Home Case Study, Preferred Builders, Old Greenwhich, CT, Custom  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Preferred Preferred Builders, Inc. Old Greenwich, CT BUILDING TECHNOLOGIES OFFICE DOE Challenge Home builders are in the top 1% of builders in the country meeting the extraordinary levels of excellence and quality specifi ed by the U.S. Department of Energy. Every DOE Challenge Home starts with ENERGY STAR for Homes Version 3 for an energy-effi cient home built on a solid foundation of building science research. Then, even more advanced technologies are designed in for a home that goes above and beyond current code to give you the superior quality construction, HVAC, appliances, indoor air quality, safety, durability, comfort, and solar-ready components along with ultra-low or no utility bills. This provides homeowners with a quality home that will last for generations to come.

278

DOE Challenge Home Case Study, BPC Green Builders, Custom Home, New Fairfield, CT  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

BPC Green BPC Green Builders New Fairfi eld, CT BUILDING TECHNOLOGIES OFFICE DOE Challenge Home builders are in the top 1% of builders in the country meeting the extraordinary levels of excellence and quality specifi ed by the U.S. Department of Energy. Every DOE Challenge Home starts with ENERGY STAR for Homes Version 3 for an energy-effi cient home built on a solid foundation of building science research. Then, even more advanced technologies are designed in for a home that goes above and beyond current code to give you the superior quality construction, HVAC, appliances, indoor air quality, safety, durability, comfort, and solar-ready components along with ultra-low or no utility bills. This provides homeowners with a quality home that will last for generations to come.

279

Automatic heart isolation for CT coronary visualization using graph-cuts  

E-Print Network (OSTI)

We describe a means to automatically and efficiently isolate the outer surface of the entire heart in Computer Tomography (CT) cardiac scans. Isolating the entire heart allows the coronary vessels on the surface of the heart to be easily visualized despite the proximity of surrounding organs such as the ribs and pulmonary blood vessels. Numerous techniques have been described for segmenting the left ventricle of the heart in images from various types of medical scanners but rarely has the entire heart been segmented. We make use of graphcuts to do the segmentation and introduce a novel means of initiating and constraining the graph-cut technique for heart isolation. The technique has been tested on 70 patient data sets. Results are compares with hand labeled results. 1.

G. Funka-lea; Y. Boykov; C. Florin; M. -p. Jolly; R. Moreau-gobard; R. Ramaraj; D. Rinck

2006-01-01T23:59:59.000Z

280

Patient radiation dose in prospectively gated axial CT coronary angiography and retrospectively gated helical technique with a 320-detector row CT scanner  

Science Conference Proceedings (OSTI)

Purpose: The aim of this study was to evaluate radiation dose to patients undergoing computed tomography coronary angiography (CTCA) for prospectively gated axial (PGA) technique and retrospectively gated helical (RGH) technique. Methods: Radiation doses were measured for a 320-detector row CT scanner (Toshiba Aquilion ONE) using small sized silicon-photodiode dosimeters, which were implanted at various tissue and organ positions within an anthropomorphic phantom for a standard Japanese adult male. Output signals from photodiode dosimeters were read out on a personal computer, from which organ and effective doses were computed according to guidelines published in the International Commission on Radiological Protection Publication 103. Results: Organs that received high doses were breast, followed by lung, esophagus, and liver. Breast doses obtained with PGA technique and a phase window width of 16% at a simulated heart rate of 60 beats per minute were 13 mGy compared to 53 mGy with RGH technique using electrocardiographically dependent dose modulation at the same phase window width as that in PGA technique. Effective doses obtained in this case were 4.7 and 20 mSv for the PGA and RGH techniques, respectively. Conversion factors of dose length product to the effective dose in PGA and RGH were 0.022 and 0.025 mSv mGy{sup -1} cm{sup -1} with a scan length of 140 mm. Conclusions: CTCA performed with PGA technique provided a substantial effective dose reduction, i.e., 70%-76%, compared to RGH technique using the dose modulation at the same phase windows as those in PGA technique. Though radiation doses in CTCA with RGH technique were the same level as, or some higher than, those in conventional coronary angiography (CCA), the use of PGA technique reduced organ and effective doses to levels less than CCA except for breast dose.

Seguchi, Shigenobu; Aoyama, Takahiko; Koyama, Shuji; Fujii, Keisuke; Yamauchi-Kawaura, Chiyo [Graduate School of Medicine, Nagoya University, Daikominami, Higashi-ku, Nagoya 461-8673 (Japan) and Department of Medical Technology, Nagoya Daini Red Cross Hospital, Myouken-chou, Showa-ku, Nagoya 466-8650 (Japan); Graduate School of Medicine, Nagoya University, Daikominami, Higashi-ku, Nagoya 461-8673 (Japan); Section of Radiological Protection, National Institute of Radiological Sciences, Anagawa, Inage-ku, Chiba 263-8555 (Japan); Graduate School of Medicine, Nagoya University, Daikominami, Higashi-ku, Nagoya 461-8673 (Japan)

2010-11-15T23:59:59.000Z

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281

Automatic tracking of implanted fiducial markers in cone beam CT projection images  

SciTech Connect

Purpose: This paper describes a novel method for simultaneous intrafraction tracking of multiple fiducial markers. Although the proposed method is generic and can be adopted for a number of applications including fluoroscopy based patient position monitoring and gated radiotherapy, the tracking results presented in this paper are specific to tracking fiducial markers in a sequence of cone beam CT projection images. Methods: The proposed method is accurate and robust thanks to utilizing the mean shift and random sampling principles, respectively. The performance of the proposed method was evaluated with qualitative and quantitative methods, using data from two pancreatic and one prostate cancer patients and a moving phantom. The ground truth, for quantitative evaluation, was calculated based on manual tracking preformed by three observers. Results: The average dispersion of marker position error calculated from the tracking results for pancreas data (six markers tracked over 640 frames, 3840 marker identifications) was 0.25 mm (at iscoenter), compared with an average dispersion for the manual ground truth estimated at 0.22 mm. For prostate data (three markers tracked over 366 frames, 1098 marker identifications), the average error was 0.34 mm. The estimated tracking error in the pancreas data was < 1 mm (2 pixels) in 97.6% of cases where nearby image clutter was detected and in 100.0% of cases with no nearby image clutter. Conclusions: The proposed method has accuracy comparable to that of manual tracking and, in combination with the proposed batch postprocessing, superior robustness. Marker tracking in cone beam CT (CBCT) projections is useful for a variety of purposes, such as providing data for assessment of intrafraction motion, target tracking during rotational treatment delivery, motion correction of CBCT, and phase sorting for 4D CBCT.

Marchant, T. E.; Skalski, A.; Matuszewski, B. J. [Christie Medical Physics and Engineering, The Christie NHS Foundation Trust, Manchester M20 4BX, United Kingdom and Manchester Academic Health Science Centre, University of Manchester, Manchester M20 4BX (United Kingdom); AGH University of Science and Technology, al. A. Mickiewicza 30, Krakow 30-059 (Poland); School of Computing, Engineering and Physical Sciences, University of Central Lancashire, Preston PR1 2HE (United Kingdom)

2012-03-15T23:59:59.000Z

282

Novel ultrahigh resolution data acquisition and image reconstruction for multi-detector row CT  

Science Conference Proceedings (OSTI)

We present and evaluate a special ultrahigh resolution mode providing considerably enhanced spatial resolution both in the scan plane and in the z-axis direction for a routine medical multi-detector row computed tomography (CT) system. Data acquisition is performed by using a flying focal spot both in the scan plane and in the z-axis direction in combination with tantalum grids that are inserted in front of the multi-row detector to reduce the aperture of the detector elements both in-plane and in the z-axis direction. The dose utilization of the system for standard applications is not affected, since the grids are moved into place only when needed and are removed for standard scanning. By means of this technique, image slices with a nominal section width of 0.4 mm (measured full width at half maximum=0.45 mm) can be reconstructed in spiral mode on a CT system with a detector configuration of 32x0.6 mm. The measured 2% value of the in-plane modulation transfer function (MTF) is 20.4 lp/cm, the measured 2% value of the longitudinal (z axis) MTF is 21.5 lp/cm. In a resolution phantom with metal line pair test patterns, spatial resolution of 20 lp/cm can be demonstrated both in the scan plane and along the z axis. This corresponds to an object size of 0.25 mm that can be resolved. The new mode is intended for ultrahigh resolution bone imaging, in particular for wrists, joints, and inner ear studies, where a higher level of image noise due to the reduced aperture is an acceptable trade-off for the clinical benefit brought about by the improved spatial resolution.

Flohr, T. G.; Stierstorfer, K.; Suess, C.; Schmidt, B.; Primak, A. N.; McCollough, C. H. [Siemens Medical Solutions, Computed Tomography CTE PA Siemensstr. 1, 91301 Forchheim (Germany) and Department of Diagnostic Radiology, Eberhard-Karls-Universitaet Tuebingen (Germany); Siemens Medical Solutions, Computed Tomography CTE PA Siemensstr. 1, 91301 Forchheim (Germany); Mayo Clinic College of Medicine, Department of Radiology, Rochester, Minnesota (United States)

2007-05-15T23:59:59.000Z

283

Adaptive planning using megavoltage fan-beam CT for radiation therapy with testicular shielding  

Science Conference Proceedings (OSTI)

This study highlights the use of adaptive planning to accommodate testicular shielding in helical tomotherapy for malignancies of the proximal thigh. Two cases of young men with large soft tissue sarcomas of the proximal thigh are presented. After multidisciplinary evaluation, preoperative radiation therapy was recommended. Both patients were referred for sperm banking and lead shields were used to minimize testicular dose during radiation therapy. To minimize imaging artifacts, kilovoltage CT (kVCT) treatment planning was conducted without shielding. Generous hypothetical contours were generated on each 'planning scan' to estimate the location of the lead shield and generate a directionally blocked helical tomotherapy plan. To ensure the accuracy of each plan, megavoltage fan-beam CT (MVCT) scans were obtained at the first treatment and adaptive planning was performed to account for lead shield placement. Two important regions of interest in these cases were femurs and femoral heads. During adaptive planning for the first patient, it was observed that the virtual lead shield contour on kVCT planning images was significantly larger than the actual lead shield used for treatment. However, for the second patient, it was noted that the size of the virtual lead shield contoured on the kVCT image was significantly smaller than the actual shield size. Thus, new adaptive plans based on MVCT images were generated and used for treatment. The planning target volume was underdosed up to 2% and had higher maximum doses without adaptive planning. In conclusion, the treatment of the upper thigh, particularly in young men, presents several clinical challenges, including preservation of gonadal function. In such circumstances, adaptive planning using MVCT can ensure accurate dose delivery even in the presence of high-density testicular shields.

Yadav, Poonam [Department of Human Oncology, University of Wisconsin, Madison, Madison, WI (United States); Department of Medical Physics, University of Wisconsin, Madison, Madison, WI (United States); School of Advance Sciences, Vellore Institue of Technology University, Vellore, Tamil Nadu (India); Kozak, Kevin [Department of Human Oncology, University of Wisconsin, Madison, Madison, WI (United States); Tolakanahalli, Ranjini [Department of Human Oncology, University of Wisconsin, Madison, Madison, WI (United States); Department of Medical Physics, University of Wisconsin, Madison, Madison, WI (United States); Ramasubramanian, V. [School of Advance Sciences, Vellore Institue of Technology University, Vellore, Tamil Nadu (India); Paliwal, Bhudatt R. [Department of Human Oncology, University of Wisconsin, Madison, Madison, WI (United States); Department of Medical Physics, University of Wisconsin, Madison, Madison, WI (United States); University of Wisconsin, Riverview Cancer Centre, Wisconsin Rapids, WI (United States); Welsh, James S. [Department of Human Oncology, University of Wisconsin, Madison, Madison, WI (United States); Department of Medical Physics, University of Wisconsin, Madison, Madison, WI (United States); Rong, Yi, E-mail: rong@humonc.wisc.edu [Department of Human Oncology, University of Wisconsin, Madison, Madison, WI (United States); University of Wisconsin, Riverview Cancer Centre, Wisconsin Rapids, WI (United States)

2012-07-01T23:59:59.000Z

284

Accuracy of volume measurement using 3D ultrasound and development of CT-3D US image fusion algorithm for prostate cancer radiotherapy  

Science Conference Proceedings (OSTI)

Purpose: To evaluate the accuracy of measuring volumes using three-dimensional ultrasound (3D US), and to verify the feasibility of the replacement of CT-MR fusion images with CT-3D US in radiotherapy treatment planning. Methods: Phantoms, consisting of water, contrast agent, and agarose, were manufactured. The volume was measured using 3D US, CT, and MR devices. A CT-3D US and MR-3D US image fusion software was developed using the Insight Toolkit library in order to acquire three-dimensional fusion images. The quality of the image fusion was evaluated using metric value and fusion images. Results: Volume measurement, using 3D US, shows a 2.8 {+-} 1.5% error, 4.4 {+-} 3.0% error for CT, and 3.1 {+-} 2.0% error for MR. The results imply that volume measurement using the 3D US devices has a similar accuracy level to that of CT and MR. Three-dimensional image fusion of CT-3D US and MR-3D US was successfully performed using phantom images. Moreover, MR-3D US image fusion was performed using human bladder images. Conclusions: 3D US could be used in the volume measurement of human bladders and prostates. CT-3D US image fusion could be used in monitoring the target position in each fraction of external beam radiation therapy. Moreover, the feasibility of replacing the CT-MR image fusion to the CT-3D US in radiotherapy treatment planning was verified.

Baek, Jihye; Huh, Jangyoung; Hyun An, So; Oh, Yoonjin [Department of Medical Sciences, Ewha Womans University, Seoul 158-710 (Korea, Republic of); Kim, Myungsoo; Kim, DongYoung; Chung, Kwangzoo; Cho, Sungho; Lee, Rena [Department of Radiation Oncology, School of Medicine, Ewha Womans University, Seoul 158-710 (Korea, Republic of)

2013-02-15T23:59:59.000Z

285

Multi-organ segmentation from multi-phase abdominal CT via 4D graphs using enhancement, shape and location optimization  

Science Conference Proceedings (OSTI)

The interpretation of medical images benefits from anatomical and physiological priors to optimize computer-aided diagnosis (CAD) applications. Diagnosis also relies on the comprehensive analysis of multiple organs and quantitative measures of soft tissue. ... Keywords: 4D graph, enhancement, multi-phase CT, segmentation, shape

Marius George Linguraru; John A. Pura; Ananda S. Chowdhury; Ronald M. Summers

2010-09-01T23:59:59.000Z

286

Circle plus partial helical scan scheme for a flat panel detector-based cone beam breast X-ray CT  

Science Conference Proceedings (OSTI)

Flat panel detector-based cone beam breast CT (CBBCT) can provide 3D image of the scanned breast with 3D isotropic spatial resolution, overcoming the disadvantage of the structure superimposition associated with X-ray projection mammography. It is very ...

Dong Yang; Ruola Ning; Weixing Cai

2009-01-01T23:59:59.000Z

287

NJ WY AK AL CA AR CO CT DE FL GA HI ID KS IL IN IA IA KY LA  

Gasoline and Diesel Fuel Update (EIA)

176, "Annual Report of Natural and Supplemental Gas Supply and Disposition." NJ WY AK AL CA AR CO CT DE FL GA HI ID KS IL IN IA IA KY LA ME MI MA MD MN MS MT MO NE ND OH NV NM NY...

288

Quantification of tc-99m sestamibi distribution in normal breast tissue using dedicated breast SPECT-CT  

Science Conference Proceedings (OSTI)

The use of Tc-99m-Sestamibi in molecular breast imaging is common due to its preferential uptake in malignant tissue. However, quantification of the baseline uptake in normal, healthy breast tissue is not possible using planar-imaging devices. Using ... Keywords: CT, SPECT, breast cancer, breast imaging, quantification, sestamibi

Steve D. Mann; Kristy L. Perez; Emily K. E. McCracken; Jainil P. Shah; Kingshuk R. Choudhury; Terence Z. Wong; Martin P. Tornai

2012-07-01T23:59:59.000Z

289

Validation of mutual information-based registration of CT and bone SPECT images in dual-isotope studies  

Science Conference Proceedings (OSTI)

The registration of computed tomography (CT) and nuclear medicine (NM) images can substantially enhance patient diagnosis as it allows for the fusion of anatomical and functional information, as well as the attenuation correction of NM images. However, ... Keywords: Accuracy, Bone SPECT, Dual-isotope studies, Multi-modality registration, Multi-resolution, Mutual information, Precision, Qualitative evaluation, Quantitative validation, Reproducibility, Robustness, Sensitivity

Lisa Tang; Ghassan Hamarneh; Anna Celler

2008-11-01T23:59:59.000Z

290

Hagit P. Affek Yale University, Dept. of Geology & Geophysics, 210 Whitney Ave. New Haven, CT 06520-8109  

E-Print Network (OSTI)

and Geophysics. · Caltech, Pasadena, CA. 2003-2007. Posdoc in Isotope geochemistry. Department of GeologicalHagit P. Affek Yale University, Dept. of Geology & Geophysics, 210 Whitney Ave. New Haven, CT 06520 Plants: Physiological Role and Isotopic Composition. Adviser: Dan Yakir. Professional experience · Yale

291

Detecting Radiation-Induced Injury Using Rapid 3D Variogram Analysis of CT Images of Rat Lungs  

SciTech Connect

A new heterogeneity analysis approach to discern radiation-induced lung damage was tested on CT images of irradiated rats. The method, combining octree decomposition with variogram analysis, demonstrated a significant correlation with radiation exposure levels, whereas conventional measurements and pulmonary function tests did not. The results suggest the new approach may be highly sensitive for assessing even subtle radiation-induced changes

Jacob, Rick E.; Murphy, Mark K.; Creim, Jeffrey A.; Carson, James P.

2013-10-01T23:59:59.000Z

292

Effect of {sup 18}F-FDG PET/CT Imaging in Patients With Clinical Stage II and III Breast Cancer  

SciTech Connect

Purpose: To investigate the potential effect of using {sup 18}F-fluorodeoxyglucose positron emission tomography/computed tomography (PET/CT) in the initial assessment of patients with clinical Stage II or III breast cancer. Methods and Materials: During 14 consecutive months, 39 patients (40 tumors) who presented with Stage II or III breast cancer on the basis of a routine extension assessment were prospectively included in this study. PET/CT was performed in addition to the initial assessment. Results: In 3 cases, PET/CT showed extra-axillary lymph node involvement that had not been demonstrated with conventional techniques. Two of these patients had hypermetabolic lymph nodes in the subpectoral and infraclavicular regions, and the third had a hypermetabolic internal mammary node. PET/CT showed distant uptake in 4 women. Of these 4 women, 1 had pleural involvement and 3 had bone metastasis. Overall, of the 39 women, the PET/CT results modified the initial stage in 7 (18%). The modified staging altered the treatment plan for 5 patients (13%). It led to radiotherapy in 4 patients (bone metastasis, pleural lesion, subpectoral lymph nodes, and internal mammary nodes) and excision of, and radiotherapy to, the infraclavicular lymph nodes in 1 patient. Conclusions: PET/CT can provide information on extra-axillary lymph node involvement and can uncover occult distant metastases in a significant percentage of patients. Therefore, initial PET/CT could enable better treatment planning for patients with Stage II and III breast cancer.

Groheux, David [Department of Nuclear Medicine, Breast Diseases Unit, Saint Louis Hospital, Paris (France)], E-mail: dgroheux@yahoo.fr; Moretti, Jean-Luc [Department of Nuclear Medicine, Breast Diseases Unit, Saint Louis Hospital, Paris (France); EAD Imagerie Moleculaire Diagnostique et Ciblage Therapeutique, IUH, University of Paris VII, Paris (France); Baillet, Georges [Department of Nuclear Medicine, Breast Diseases Unit, Saint Louis Hospital, Paris (France); Espie, Marc; Giacchetti, Sylvie [Department of Medical Oncology, Breast Diseases Unit, Saint Louis Hospital, Paris (France); Hindie, Elif [Department of Nuclear Medicine, Breast Diseases Unit, Saint Louis Hospital, Paris (France); EAD Imagerie Moleculaire Diagnostique et Ciblage Therapeutique, IUH, University of Paris VII, Paris (France); Hennequin, Christophe [EAD Imagerie Moleculaire Diagnostique et Ciblage Therapeutique, IUH, University of Paris VII, Paris (France); Department of Radiation Oncology, Breast Diseases Unit, Saint Louis Hospital, Paris (France); Vilcoq, Jacques-Robert [Department of Radiation Oncology, Hartmann Hospital, Neuilly sur Seine (France); Cuvier, Caroline [Department of Medical Oncology, Breast Diseases Unit, Saint Louis Hospital, Paris (France); Toubert, Marie-Elisabeth [Department of Nuclear Medicine, Breast Diseases Unit, Saint Louis Hospital, Paris (France); Filmont, Jean-Emmanuel [Department of Nuclear Medicine, Breast Diseases Unit, Saint Louis Hospital, Paris (France); EAD Imagerie Moleculaire Diagnostique et Ciblage Therapeutique, IUH, University of Paris VII, Paris (France); Sarandi, Farid [Department of Nuclear Medicine, Breast Diseases Unit, Saint Louis Hospital, Paris (France); Misset, Jean-Louis [Department of Medical Oncology, Breast Diseases Unit, Saint Louis Hospital, Paris (France)

2008-07-01T23:59:59.000Z

293

Characterization of adaptive statistical iterative reconstruction algorithm for dose reduction in CT: A pediatric oncology perspective  

Science Conference Proceedings (OSTI)

Purpose: This study demonstrates a means of implementing an adaptive statistical iterative reconstruction (ASiR Trade-Mark-Sign ) technique for dose reduction in computed tomography (CT) while maintaining similar noise levels in the reconstructed image. The effects of image quality and noise texture were assessed at all implementation levels of ASiR Trade-Mark-Sign . Empirically derived dose reduction limits were established for ASiR Trade-Mark-Sign for imaging of the trunk for a pediatric oncology population ranging from 1 yr old through adolescence/adulthood. Methods: Image quality was assessed using metrics established by the American College of Radiology (ACR) CT accreditation program. Each image quality metric was tested using the ACR CT phantom with 0%-100% ASiR Trade-Mark-Sign blended with filtered back projection (FBP) reconstructed images. Additionally, the noise power spectrum (NPS) was calculated for three common reconstruction filters of the trunk. The empirically derived limitations on ASiR Trade-Mark-Sign implementation for dose reduction were assessed using (1, 5, 10) yr old and adolescent/adult anthropomorphic phantoms. To assess dose reduction limits, the phantoms were scanned in increments of increased noise index (decrementing mA using automatic tube current modulation) balanced with ASiR Trade-Mark-Sign reconstruction to maintain noise equivalence of the 0% ASiR Trade-Mark-Sign image. Results: The ASiR Trade-Mark-Sign algorithm did not produce any unfavorable effects on image quality as assessed by ACR criteria. Conversely, low-contrast resolution was found to improve due to the reduction of noise in the reconstructed images. NPS calculations demonstrated that images with lower frequency noise had lower noise variance and coarser graininess at progressively higher percentages of ASiR Trade-Mark-Sign reconstruction; and in spite of the similar magnitudes of noise, the image reconstructed with 50% or more ASiR Trade-Mark-Sign presented a more smoothed appearance than the pre-ASiR Trade-Mark-Sign 100% FBP image. Finally, relative to non-ASiR Trade-Mark-Sign images with 100% of standard dose across the pediatric phantom age spectrum, similar noise levels were obtained in the images at a dose reduction of 48% with 40% ASIR Trade-Mark-Sign and a dose reduction of 82% with 100% ASIR Trade-Mark-Sign . Conclusions: The authors' work was conducted to identify the dose reduction limits of ASiR Trade-Mark-Sign for a pediatric oncology population using automatic tube current modulation. Improvements in noise levels from ASiR Trade-Mark-Sign reconstruction were adapted to provide lower radiation exposure (i.e., lower mA) instead of improved image quality. We have demonstrated for the image quality standards required at our institution, a maximum dose reduction of 82% can be achieved using 100% ASiR Trade-Mark-Sign ; however, to negate changes in the appearance of reconstructed images using ASiR Trade-Mark-Sign with a medium to low frequency noise preserving reconstruction filter (i.e., standard), 40% ASiR Trade-Mark-Sign was implemented in our clinic for 42%-48% dose reduction at all pediatric ages without a visually perceptible change in image quality or image noise.

Brady, S. L.; Yee, B. S.; Kaufman, R. A. [Department of Radiological Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee 38105 (United States)

2012-09-15T23:59:59.000Z

294

Methane hydrate distribution from prolonged and repeated formation in natural and compacted sand samples: X-ray CT observations  

SciTech Connect

To study physical properties of methane gas hydrate-bearing sediments, it is necessary to synthesize laboratory samples due to the limited availability of cores from natural deposits. X-ray computed tomography (CT) and other observations have shown gas hydrate to occur in a number of morphologies over a variety of sediment types. To aid in understanding formation and growth patterns of hydrate in sediments, methane hydrate was repeatedly formed in laboratory-packed sand samples and in a natural sediment core from the Mount Elbert Stratigraphic Test Well. CT scanning was performed during hydrate formation and decomposition steps, and periodically while the hydrate samples remained under stable conditions for up to 60 days. The investigation revealed the impact of water saturation on location and morphology of hydrate in both laboratory and natural sediments during repeated hydrate formations. Significant redistribution of hydrate and water in the samples was observed over both the short and long term.

Rees, E.V.L.; Kneafsey, T.J.; Seol, Y.

2010-07-01T23:59:59.000Z

295

CT Scan Not Only a Medical Technique NETL Wins Two 2008  

NLE Websites -- All DOE Office Websites (Extended Search)

S . D e p a r t m e n t o f E n e r g y * O f f i c e o f F o s s i l E n e r g y * N a t i o n a l E n e r g y Te c h n o l o g y L a b o r a t o r y S . D e p a r t m e n t o f E n e r g y * O f f i c e o f F o s s i l E n e r g y * N a t i o n a l E n e r g y Te c h n o l o g y L a b o r a t o r y CT Scan Not Only a Medical Technique NETL Wins Two 2008 R&D 100 Awards First Measurements at Oxy-Fuel Flame Test Facility NETL's R&D newsletter January 2008 / issue 8 October 2008, Issue 11 CONTENTS Medical Technique Adopted to Study Mobility of CO 2 in Coal ____________________________________________ 2 Two Technologies Chosen for 2008 R&D 100 Awards _____ 3 Computer Code for Geologic Sequestration Modified for Parallel Computers ________________________________

296

CT imaging techniques for two-phase and three-phase in-situ saturation measurements  

SciTech Connect

The aim of this research is to use the SUPRI 3D steam injection laboratory model to establish a reliable method for 3-phase in-situ saturation measurements, and thereafter investigate the mechanism of steamflood at residual oil saturation. Demiral et al. designed and constructed a three dimensional laboratory model that can be used to measure temperature, pressure and heat loss data. The model is also designed so that its construction materials are not a limiting factor for CT scanning. We have used this model for our study. In this study, we saturated the model with mineral oil, and carried out waterflood until residual oil saturation. Steamflood was then carried out. A leak appeared at the bottom of the model. Despite this problem, the saturation results, obtained by using 2-phase and 3-phase saturation equations and obtained from the Cat scanner, were compared with the saturations obtained from material balance. The errors thus obtained were compared with those obtained by an error analysis carried out on the saturation equations. This report gives details of the experimental procedures, the data acquisition and data processing computer programs, and the analysis of a steamflood experiment carried out at residual oil saturation.

Sharma, B.C.; Brigham, W.E.; Castanier, L.M.

1997-06-01T23:59:59.000Z

297

Trying to make an unwanted facility palatable  

SciTech Connect

Finding suitable accommodations for the temporary storage and permanent disposal of this: nation`s low- and high-level radioactive waste is proving an ever more difficult task in this era of volatile technology and science debate over the merits of the nuclear fuel cycle. Local constituencies become deeply immersed in the complex debate whether the site is chosen through a technical site selection process or is a voluntary entry. Rural communities with candidate sites need to initially shift their focus away from this, often acrimonious, debate; instead, the first discussion priority for such rural communities should be to develop a dynamic vision of their own economic and environmental future. The second discussion priority should be to determine if the array of accompanying incentives and benefits hosting this facility would afford the community the opportunity for vision fulfillment. If so, total focus should, then, be given to understanding and resolving to the satisfaction of the constituents issues related to nuclear technology, isolation of radioactive materials, management of risk, storage and disposal facility need, perceived and actual risk, oversight and power sharing authority, engineered safety barriers, and public trust.

Metz, W.C.

1993-03-01T23:59:59.000Z

298

2011 TriView National Bank Scorebook  

Science Conference Proceedings (OSTI)

... retreat and the associate engagement survey are widely ... strengths found in its response to results ... well as for time and demand deposit statements ...

2012-10-04T23:59:59.000Z

299

CI Tri-sectional mtg 1301  

Science Conference Proceedings (OSTI)

... Flame structure modeling indicates that the breakdown of this ... of the uninhibited flame, whose structure is also ... This work is part of the Department of ...

2012-10-22T23:59:59.000Z

300

TriView National Bank Case Study  

Science Conference Proceedings (OSTI)

... services such as cash management, lockbox services, and account reconciliation. Since the mid-1980s, TNB has specialized in residential, one- ...

2012-09-06T23:59:59.000Z

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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301

TriView National Bank Feedback Report  

Science Conference Proceedings (OSTI)

... both system performance and system availability, and a disaster recovery hot site with redundant systems is used to ensure business continuity. ...

2012-10-27T23:59:59.000Z

302

Summon [ try out ] How to use Summon  

E-Print Network (OSTI)

'). The terms you enter may occur in the publication loose from one another. Put your search terms between: advanced search: enter search terms as words from publication titles #12;3 Type * to search for all endings: advanced search: enter search terms in specific search boxes Full-text linking in Summon Clicking

Franssen, Michael

303

Antiscatter grids in mobile C-arm cone-beam CT: Effect on image quality and dose  

Science Conference Proceedings (OSTI)

Purpose: X-ray scatter is a major detriment to image quality in cone-beam CT (CBCT). Existing geometries exhibit strong differences in scatter susceptibility with more compact geometries, e.g., dental or musculoskeletal, benefiting from antiscatter grids, whereas in more extended geometries, e.g., IGRT, grid use carries tradeoffs in image quality per unit dose. This work assesses the tradeoffs in dose and image quality for grids applied in the context of low-dose CBCT on a mobile C-arm for image-guided surgery. Methods: Studies were performed on a mobile C-arm equipped with a flat-panel detector for high-quality CBCT. Antiscatter grids of grid ratio (GR) 6:1-12:1, 40 lp/cm, were tested in ''body'' surgery, i.e., spine, using protocols for bone and soft-tissue visibility in the thoracic and abdominal spine. Studies focused on grid orientation, CT number accuracy, image noise, and contrast-to-noise ratio (CNR) in quantitative phantoms at constant dose. Results: There was no effect of grid orientation on possible gridline artifacts, given accurate angle-dependent gain calibration. Incorrect calibration was found to result in gridline shadows in the projection data that imparted high-frequency artifacts in 3D reconstructions. Increasing GR reduced errors in CT number from 31%, thorax, and 37%, abdomen, for gridless operation to 2% and 10%, respectively, with a 12:1 grid, while image noise increased by up to 70%. The CNR of high-contrast objects was largely unaffected by grids, but low-contrast soft-tissues suffered reduction in CNR, 2%-65%, across the investigated GR at constant dose. Conclusions: While grids improved CT number accuracy, soft-tissue CNR was reduced due to attenuation of primary radiation. CNR could be restored by increasing dose by factors of {approx}1.6-2.5 depending on GR, e.g., increase from 4.6 mGy for the thorax and 12.5 mGy for the abdomen without antiscatter grids to approximately 12 mGy and 30 mGy, respectively, with a high-GR grid. However, increasing the dose poses a significant impediment to repeat intraoperative CBCT and can cause the cumulative intraoperative dose to exceed that of a single diagnostic CT scan. This places the mobile C-arm in the category of extended CBCT geometries with sufficient air gap for which the tradeoffs between CNR and dose typically do not favor incorporation of an antiscatter grid.

Schafer, S.; Stayman, J.W.; Zbijewski, W.; Schmidgunst, C.; Kleinszig, G.; Siewerdsen, J.H. [Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland 21202 (United States); Siemens Healthcare XP Division, Erlangen, Bavaria 91052 (Germany); Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland 21202 (United States) and Department of Computer Science, Johns Hopkins University, Baltimore, Maryland 21218 (United States)

2012-01-15T23:59:59.000Z

304

New chemistry with gold-nitrogen complexes: synthesis and characterization of tetra-, tri-, and dinuclear gold(I) amidinate complexes. Oxidative-addition to the dinuclear gold(I) amidinate  

E-Print Network (OSTI)

Nitrogen ligands have been little studied with gold(I) and almost no chemistry has been described using anionic bridging nitrogen ligands. This dissertation concerns the impact of the bridging ligands amidinate, ArNHC(H)NAr, on the chemistry of gold(I) and, in particular, the effect of substituents on the molecular arrangement. The electronic vs. steric effect of the substituents on the molecular arrangement of gold(I) amidinates complexes is studied in detail. Tetra-, tri-, and dinuclear gold(I) amidinate complexes are synthesized and characterized using X-ray diffraction. Spectroscopic and electrochemical studies of the amidinate complexes are described. Catalytic studies suggest that gold amidinates and related gold nitrogen complexes are the best catalyst precursors for CO oxidation on TiO2 surface reported to date (87% conversion). The dinuclear gold(I) amidinate complex with a Au Au distance of 2.711(3) is rare. To our knowledge, there is only one other example of a symmetrical dinuclear gold(I) nitrogen complex. Oxidative-addition reactions to the dinuclear gold(I) complex, [Au2(2,6-Me2-form)2] are studied in detail and result in the formation of gold(II) complexes. The gold(II) amidinate complexes are the first formed with nitrogen ligands. The complexes are stable at room temperature. Mixed ligand tetranuclear gold(I) clusters and tetranuclear mixed Au-Ag metal clusters of pyrazolate and amidinate ligands are synthesized and characterized using Xray diffraction.

Abdou, Hanan Elsayed

2006-05-01T23:59:59.000Z

305

Finite Element Analysis of Ballistic Penetration of Plain Weave Twaron CT709 Fabrics: A Parametric Study  

E-Print Network (OSTI)

The ballistic impact of Twaron CT709 plain weave fabrics is studied using an explicit finite element method. Many existing approximations pertaining to woven fabrics cannot adequately represent strain rate-dependent behavior exhibited by the Twaron fabrics. One-dimensional models based on linear viscoelasticity can account for rate dependency but are limited by the simplifying assumptions on the fabric architecture and stress state. In the current study, a three-dimensional fabric model is developed by treating each individual yarn as a continuum. The yarn behavior is phenomenologically described using a three-dimensional linear viscoelastic constitutive relation. A user subroutine VUMAT for ABAQUS/Explicit is developed to incorporate the constitutive behavior. By using the newly developed viscoelasticity model, a parametric study is carried out to analyze the effects of various parameters on the impact behavior of the Twaron fabrics, which include projectile shape and mass, gripping conditions, inter-yarn friction, and the number of fabric layers. The study leads to the determination of the optimal number of fabric layers and the optimized level of inter-yarn friction that are needed to achieve the maximum energy absorption at specified impact speeds. The present study successfully utilizes the combination of 3D weave architecture and the strain rate dependent material behavior. Majority of the existing work is based either on geometry simplification or assumption of elastic material behavior. Another significant advantage with the present approach is that the mechanical constitutive relation, coded in FORTRAN, is universal in application. The desired material behavior can be obtained by just varying the material constants in the code. This allows for the extension of this work to any fabric material which exhibits a strain-rate dependent behavior in addition to Twaron. The results pertaining to optimal number of fabric layers and inter-yarn friction levels can aid in the manufacturing of fabric with regard to the desired level of lubrication/additives to improve the fabric performance under impact.

Gogineni, Sireesha

2010-08-01T23:59:59.000Z

306

Noise suppression in reconstruction of low-Z target megavoltage cone-beam CT images  

Science Conference Proceedings (OSTI)

Purpose: To improve the image contrast-to-noise (CNR) ratio for low-Z target megavoltage cone-beam CT (MV CBCT) using a statistical projection noise suppression algorithm based on the penalized weighted least-squares (PWLS) criterion. Methods: Projection images of a contrast phantom, a CatPhan{sup Registered-Sign} 600 phantom and a head phantom were acquired by a Varian 2100EX LINAC with a low-Z (Al) target and low energy x-ray beam (2.5 MeV) at a low-dose level and at a high-dose level. The projections were then processed by minimizing the PWLS objective function. The weighted least square (WLS) term models the noise of measured projection and the penalty term enforces the smoothing constraints of the projection image. The variance of projection data was chosen as the weight for the PWLS objective function and it determined the contribution of each measurement. An anisotropic quadratic form penalty that incorporates the gradient information of projection image was used to preserve edges during noise reduction. Low-Z target MV CBCT images were reconstructed by the FDK algorithm after each projection was processed by the PWLS smoothing. Results: Noise in low-Z target MV CBCT images were greatly suppressed after the PWLS projection smoothing, without noticeable sacrifice of the spatial resolution. Depending on the choice of smoothing parameter, the CNR of selected regions of interest in the PWLS processed low-dose low-Z target MV CBCT image can be higher than the corresponding high-dose image.Conclusion: The CNR of low-Z target MV CBCT images was substantially improved by using PWLS projection smoothing. The PWLS projection smoothing algorithm allows the reconstruction of high contrast low-Z target MV CBCT image with a total dose of as low as 2.3 cGy.

Wang Jing; Robar, James; Guan Huaiqun [Department of Radiation Oncology, UT Southwestern Medical Center, Dallas, Texas 75235 (United States); Departments of Radiation Oncology and Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, B3H1V7 (Canada); Department of Radiation Oncology, Saint Vincent Hospital, Worcester, Massachusetts 01608 (United States)

2012-08-15T23:59:59.000Z

307

Prospective-gated cardiac micro-CT imaging of free-breathing mice using carbon nanotube field emission x-ray  

Science Conference Proceedings (OSTI)

Purpose: Carbon nanotube (CNT) based field emission x-ray source technology has recently been investigated for diagnostic imaging applications because of its attractive characteristics including electronic programmability, fast switching, distributed source, and multiplexing. The purpose of this article is to demonstrate the potential of this technology for high-resolution prospective-gated cardiac micro-CT imaging. Methods: A dynamic cone-beam micro-CT scanner was constructed using a rotating gantry, a stationary mouse bed, a flat-panel detector, and a sealed CNT based microfocus x-ray source. The compact single-beam CNT x-ray source was operated at 50 KVp and 2 mA anode current with 100 {mu}mx100 {mu}m effective focal spot size. Using an intravenously administered iodinated blood-pool contrast agent, prospective cardiac and respiratory-gated micro-CT images of beating mouse hearts were obtained from ten anesthetized free-breathing mice in their natural position. Four-dimensional cardiac images were also obtained by gating the image acquisition to different phases in the cardiac cycle. Results: High-resolution CT images of beating mouse hearts were obtained at 15 ms temporal resolution and 6.2 lp/mm spatial resolution at 10% of system MTF. The images were reconstructed at 76 {mu}m isotropic voxel size. The data acquisition time for two cardiac phases was 44{+-}9 min. The CT values observed within the ventricles and the ventricle wall were 455{+-}49 and 120{+-}48 HU, respectively. The entrance dose for the acquisition of a single phase of the cardiac cycle was 0.10 Gy. Conclusions: A high-resolution dynamic micro-CT scanner was developed from a compact CNT microfocus x-ray source and its feasibility for prospective-gated cardiac micro-CT imaging of free-breathing mice under their natural position was demonstrated.

Cao Guohua; Burk, Laurel M.; Lee, Yueh Z.; Calderon-Colon, Xiomara; Sultana, Shabana; Lu Jianping; Zhou, Otto [Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 and Department of Radiology, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Curriculum in Applied Sciences and Engineering, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 (United States) and Curriculum in Applied Sciences and Engineering, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Curriculum in Applied Sciences and Engineering, University of North Carolina, Chapel Hill, North Carolina 27599 (United States) and Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, North Carolina 27599 (United States)

2010-10-15T23:59:59.000Z

308

Automated temporal tracking and segmentation of lymphoma on serial CT examinations  

Science Conference Proceedings (OSTI)

Purpose: It is challenging to reproducibly measure and compare cancer lesions on numerous follow-up studies; the process is time-consuming and error-prone. In this paper, we show a method to automatically and reproducibly identify and segment abnormal lymph nodes in serial computed tomography (CT) exams. Methods: Our method leverages initial identification of enlarged (abnormal) lymph nodes in the baseline scan. We then identify an approximate region for the node in the follow-up scans using nonrigid image registration. The baseline scan is also used to locate regions of normal, non-nodal tissue surrounding the lymph node and to map them onto the follow-up scans, in order to reduce the search space to locate the lymph node on the follow-up scans. Adaptive region-growing and clustering algorithms are then used to obtain the final contours for segmentation. We applied our method to 24 distinct enlarged lymph nodes at multiple time points from 14 patients. The scan at the earlier time point was used as the baseline scan to be used in evaluating the follow-up scan, resulting in 70 total test cases (e.g., a series of scans obtained at 4 time points results in 3 test cases). For each of the 70 cases, a ''reference standard'' was obtained by manual segmentation by a radiologist. Assessment according to response evaluation criteria in solid tumors (RECIST) using our method agreed with RECIST assessments made using the reference standard segmentations in all test cases, and by calculating node overlap ratio and Hausdorff distance between the computer and radiologist-generated contours. Results: Compared to the reference standard, our method made the correct RECIST assessment for all 70 cases. The average overlap ratio was 80.7 {+-} 9.7% s.d., and the average Hausdorff distance was 3.2 {+-} 1.8 mm s.d. The concordance correlation between automated and manual segmentations was 0.978 (95% confidence interval 0.962, 0.984). The 100% agreement in our sample between our method and the standard with regard to RECIST classification suggests that the true disagreement rate is no more than 6%. Conclusions: Our automated lymph node segmentation method achieves excellent overall segmentation performance and provides equivalent RECIST assessment. It potentially will be useful to streamline and improve cancer lesion measurement and tracking and to improve assessment of cancer treatment response.

Xu Jiajing; Greenspan, Hayit; Napel, Sandy; Rubin, Daniel L. [Department of Electrical Engineering, Stanford University, Stanford, California 94305 (United States); Department of Biomedical Engineering, Tel Aviv University, Tel Aviv, 69978 (Israel); Department of Electrical Engineering, Stanford University, Stanford, California 94305 and Department of Radiology, Stanford University, Stanford, California 94305 (United States); Department of Radiology, Stanford University, Stanford, California 94305 (United States)

2011-11-15T23:59:59.000Z

309

A comparison between amplitude sorting and phase-angle sorting using external respiratory measurement for 4D CT  

SciTech Connect

Respiratory motion can cause significant dose delivery errors in conformal radiation therapy for thoracic and upper abdominal tumors. Four-dimensional computed tomography (4D CT) has been proposed to provide the image data necessary to model tumor motion and consequently reduce these errors. The purpose of this work was to compare 4D CT reconstruction methods using amplitude sorting and phase angle sorting. A 16-slice CT scanner was operated in cine mode to acquire 25 scans consecutively at each couch position through the thorax. The patient underwent synchronized external respiratory measurements. The scans were sorted into 12 phases based, respectively, on the amplitude and direction (inhalation or exhalation) or on the phase angle (0-360 deg.) of the external respiratory signal. With the assumption that lung motion is largely proportional to the measured respiratory amplitude, the variation in amplitude corresponds to the variation in motion for each phase. A smaller variation in amplitude would associate with an improved reconstructed image. Air content, defined as the amount of air within the lungs, bronchi, and trachea in a 16-slice CT segment and used by our group as a surrogate for internal motion, was correlated to the respiratory amplitude and phase angle throughout the lungs. For the 35 patients who underwent quiet breathing, images (similar to those used for treatment planning) and animations (used to display respiratory motion) generated using amplitude sorting displayed fewer reconstruction artifacts than those generated using phase angle sorting. The variations in respiratory amplitude were significantly smaller (P<0.001) with amplitude sorting than those with phase angle sorting. The subdivision of the breathing cycle into more (finer) phases improved the consistency in respiratory amplitude for amplitude sorting, but not for phase angle sorting. For 33 of the 35 patients, the air content showed significantly improved (P<0.001) correlation with the respiratory amplitude than with the phase angle, suggesting a stronger relationship between internal motion and amplitude. Overall, amplitude sorting performed better than phase angle sorting for 33 of the 35 patients and equally well for two patients who were immobilized with a stereotactic body frame and an abdominal compression plate.

Lu Wei; Parikh, Parag J.; Hubenschmidt, James P.; Bradley, Jeffrey D.; Low, Daniel A. [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri 63110 (United States)

2006-08-15T23:59:59.000Z

310

Final environment impact report supplement: Northeast corridor improvement project electrification: New Haven, CT to Boston, MA. Final report  

SciTech Connect

This document is a supplement to the final environmental impact report (FEIR) published in October 1994 on the proposal by the National Railroad Passenger Corporation (Amtrak) to complete the electrification of the Northeast Corridor main line by extending electrification from New Haven, CT, to Boston, MA. The purpose of this supplement is to provide additional information relative to: the Roxbury Substation Alternative Analysis; an expanded discussion on mitigation of potential adverse impacts; draft Section 61 findings; the Memorandum of Understanding between Amtrak and the Massachusetts Bay Transportation Authority (MBTA) for Route 128 Station; Amtrak`s draft outreach program; and to address other Massachusetts Environmental Policy Act concerns.

NONE

1995-02-01T23:59:59.000Z

311

Patient-specific radiation dose and cancer risk estimation in CT: Part I. Development and validation of a Monte Carlo program  

SciTech Connect

Purpose: Radiation-dose awareness and optimization in CT can greatly benefit from a dose-reporting system that provides dose and risk estimates specific to each patient and each CT examination. As the first step toward patient-specific dose and risk estimation, this article aimed to develop a method for accurately assessing radiation dose from CT examinations. Methods: A Monte Carlo program was developed to model a CT system (LightSpeed VCT, GE Healthcare). The geometry of the system, the energy spectra of the x-ray source, the three-dimensional geometry of the bowtie filters, and the trajectories of source motions during axial and helical scans were explicitly modeled. To validate the accuracy of the program, a cylindrical phantom was built to enable dose measurements at seven different radial distances from its central axis. Simulated radial dose distributions in the cylindrical phantom were validated against ion chamber measurements for single axial scans at all combinations of tube potential and bowtie filter settings. The accuracy of the program was further validated using two anthropomorphic phantoms (a pediatric one-year-old phantom and an adult female phantom). Computer models of the two phantoms were created based on their CT data and were voxelized for input into the Monte Carlo program. Simulated dose at various organ locations was compared against measurements made with thermoluminescent dosimetry chips for both single axial and helical scans. Results: For the cylindrical phantom, simulations differed from measurements by -4.8% to 2.2%. For the two anthropomorphic phantoms, the discrepancies between simulations and measurements ranged between (-8.1%, 8.1%) and (-17.2%, 13.0%) for the single axial scans and the helical scans, respectively. Conclusions: The authors developed an accurate Monte Carlo program for assessing radiation dose from CT examinations. When combined with computer models of actual patients, the program can provide accurate dose estimates for specific patients.

Li Xiang; Samei, Ehsan; Segars, W. Paul; Sturgeon, Gregory M.; Colsher, James G.; Toncheva, Greta; Yoshizumi, Terry T.; Frush, Donald P. [Medical Physics Graduate Program, Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Medical Physics Graduate Program, Department of Physics, and Department of Biomedical Engineering, Duke University Medical Center, Durham, North Carolina 27705 (United States); Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Medical Physics Graduate Program, Duke University Medical Center, Durham, North Carolina 27705 (United States); Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States) and Department of Biomedical Engineering, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Duke Radiation Dosimetry Laboratory, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Duke Radiation Dosimetry Laboratory, Department of Radiology, Medical Physics Graduate Program, Duke University Medical Center, Durham, North Carolina 27705 (United States); Division of Pediatric Radiology, Department of Radiology, Medical Physics Graduate Program, Duke University Medical Center, Durham, North Carolina 27710 (United States)

2011-01-15T23:59:59.000Z

312

Intraoperative validation of CT-based lymph nodal levels, sublevels IIa and IIb: Is it of clinical relevance in selective radiation therapy?  

SciTech Connect

Purpose: The objectives of this study are to discuss the intraoperative validation of CT-based boundaries of lymph nodal levels in the neck, and in particular the clinical relevance of the delineation of sublevels IIa and IIb in case of selective radiation therapy (RT). Methods and Materials: To validate the radiologically defined level contours, clips were positioned intraoperatively at the level boundaries defined by surgical anatomy. In 10 consecutive patients, clips were placed, at the time of a neck dissection being performed, at the most cranial border of the neck. Anterior-posterior and lateral X-ray films were obtained intraoperatively. Next, in 3 patients, neck levels were contoured on preoperative contrast-enhanced CT scans according to the international consensus guidelines. From each of these 3 patients, an intraoperative CT scan was also obtained, with clips placed at the surgical-anatomy-based level boundaries. The preoperative (CT-based) and intraoperative (surgery-defined) CT scans were matched. Results: Clips placed at the most cranial part of the neck lined up at the caudal part of the transverse process of the cervical vertebra C-I. The posterior border of surgical level IIa (spinal accessory nerve [SAN]) did not match with the posterior border of CT-based level IIa (internal jugular vein [IJV]). Other surgical boundaries and CT-based contours were in good agreement. Conclusions: The cranial border of the neck, i.e., the cranial border of level IIa/IIb, corresponds to the caudal edge of the lateral process of C-I. Except for the posterior border between level IIa and level IIb, a perfect match was observed between the other surgical-clip-identified levels II-V boundaries (surgical-anatomy) and the CT-based delineation contours. It is argued that (1) because of the parotid gland overlapping part of level II, and (2) the frequent infestation of occult metastatic cells in the lymph channels around the IJV, the division of level II into radiologic sublevels IIa and IIb may not be relevant. Sparing of, for example, the ipsilateral parotid gland in selective RT can even be a treacherous undertaking with respect to regional tumor control. In contrast, the surgeon's reasoning for preserving the surgical sublevel IIb is that the morbidity associated with dissection of the supraspinal accessory nerve compartment of level II is reduced, whereas there is evidence from the surgical literature that no extra risk for regional tumor control is observed. Therefore, in selective neck dissections, the division into surgical sublevels IIa/IIb makes sense.

Levendag, Peter [Department of Radiation Oncology, Erasmus Medical Center-Daniel den Hoed Cancer Center, Rotterdam (Netherlands)]. E-mail: p.levendag@erasmusmc.nl; Gregoire, Vincent [Department of Radiation Oncology, St-Luc University Hospital, Brussels (Belgium); Hamoir, Marc [Department of ENT Surgery, St-Luc University Hospital, Brussels (Belgium); Voet, Peter [Department of Radiation Oncology, Erasmus Medical Center-Daniel den Hoed Cancer Center, Rotterdam (Netherlands); Est, Henrie van der [Department of Radiation Oncology, Erasmus Medical Center-Daniel den Hoed Cancer Center, Rotterdam (Netherlands); Heijmen, Ben [Department of Radiation Oncology, Erasmus Medical Center-Daniel den Hoed Cancer Center, Rotterdam (Netherlands); Kerrebijn, Jeroen [Department of ENT Surgery, Erasmus Medical Center-Daniel den Hoed Cancer Center, Rotterdam (Netherlands)

2005-07-01T23:59:59.000Z

313

A Phase II Comparative Study of Gross Tumor Volume Definition With or Without PET/CT Fusion in Dosimetric Planning for Non-Small-Cell Lung Cancer (NSCLC): Primary Analysis of Radiation Therapy Oncology Group (RTOG) 0515  

SciTech Connect

Background: Radiation Therapy Oncology Group (RTOG) 0515 is a Phase II prospective trial designed to quantify the impact of positron emission tomography (PET)/computed tomography (CT) compared with CT alone on radiation treatment plans (RTPs) and to determine the rate of elective nodal failure for PET/CT-derived volumes. Methods: Each enrolled patient underwent definitive radiation therapy for non-small-cell lung cancer ({>=}60 Gy) and had two RTP datasets generated: gross tumor volume (GTV) derived with CT alone and with PET/CT. Patients received treatment using the PET/CT-derived plan. The primary end point, the impact of PET/CT fusion on treatment plans was measured by differences of the following variables for each patient: GTV, number of involved nodes, nodal station, mean lung dose (MLD), volume of lung exceeding 20 Gy (V20), and mean esophageal dose (MED). Regional failure rate was a secondary end point. The nonparametric Wilcoxon matched-pairs signed-ranks test was used with Bonferroni adjustment for an overall significance level of 0.05. Results: RTOG 0515 accrued 52 patients, 47 of whom are evaluable. The follow-up time for all patients is 12.9 months (2.7-22.2). Tumor staging was as follows: II = 6%; IIIA = 40%; and IIIB = 54%. The GTV was statistically significantly smaller for PET/CT-derived volumes (98.7 vs. 86.2 mL; p < 0.0001). MLDs for PET/CT plans were slightly lower (19 vs. 17.8 Gy; p = 0.06). There was no significant difference in the number of involved nodes (2.1 vs. 2.4), V20 (32% vs. 30.8%), or MED (28.7 vs. 27.1 Gy). Nodal contours were altered by PET/CT for 51% of patients. One patient (2%) has developed an elective nodal failure. Conclusions: PET/CT-derived tumor volumes were smaller than those derived by CT alone. PET/CT changed nodal GTV contours in 51% of patients. The elective nodal failure rate for GTVs derived by PET/CT is quite low, supporting the RTOG standard of limiting the target volume to the primary tumor and involved nodes.

Bradley, Jeffrey, E-mail: jbradley@wustl.edu [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO (United States); Bae, Kyounghwa [Department of Statistics, RTOG, Philadelphia, PA (United States); Choi, Noah [Massachusetts General Hospital, Boston, MA (United States); Forster, Ken [H. Lee Moffitt Cancer Center, Tampa, FL (United States); Siegel, Barry A. [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO (United States); Brunetti, Jacqueline [Holy Name Medical Center, Teaneck, NJ (United States); Purdy, James [University of California at Davis, Davis, CA (United States); Faria, Sergio [McGill University, Montreal (Canada); Vu, Toni [Centre Hospitalier Universitaire de Montreal, Hospital Notre Dame, Montreal (Canada); Thorstad, Wade [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO (United States); Choy, Hak [University of Texas Southwestern, Dallas, TX (United States)

2012-01-01T23:59:59.000Z

314

Final environmental impact statement/report. Volume 4. Comment letters and public hearing transcripts. Northeast corridor improvement project electrication: New Haven, CT to Boston, MA  

Science Conference Proceedings (OSTI)

This document is the final environmental impact statement and final environmental impact report (FEIS/R) on the proposal by the National Railroad Passenger Corporation (Amtrak) to complete the electrification of the Northeast Corridor main line by extending electric traction from New Haven, CT, to Boston, MA. This document (Volume IV) reprints the comments received on the DEIS/R.

NONE

1994-10-01T23:59:59.000Z

315

Three-dimensional multiphase segmentation of X-ray CT data of porous materials using a Bayesian Markov random field framework  

SciTech Connect

Advancements in noninvasive imaging methods such as X-ray computed tomography (CT) have led to a recent surge of applications in porous media research with objectives ranging from theoretical aspects of pore-scale fluid and interfacial dynamics to practical applications such as enhanced oil recovery and advanced contaminant remediation. While substantial efforts and resources have been devoted to advance CT technology, microscale analysis, and fluid dynamics simulations, the development of efficient and stable three-dimensional multiphase image segmentation methods applicable to large data sets is lacking. To eliminate the need for wet-dry or dual-energy scans, image alignment, and subtraction analysis, commonly applied in X-ray micro-CT, a segmentation method based on a Bayesian Markov random field (MRF) framework amenable to true three-dimensional multiphase processing was developed and evaluated. Furthermore, several heuristic and deterministic combinatorial optimization schemes required to solve the labeling problem of the MRF image model were implemented and tested for computational efficiency and their impact on segmentation results. Test results for three grayscale data sets consisting of dry glass beads, partially saturated glass beads, and partially saturated crushed tuff obtained with synchrotron X-ray micro-CT demonstrate great potential of the MRF image model for three-dimensional multiphase segmentation. While our results are promising and the developed algorithm is stable and computationally more efficient than other commonly applied porous media segmentation models, further potential improvements exist for fully automated operation.

Kulkarni, Ramaprasad; Tuller, Markus; Fink, Wolfgang; Wildschild, Dorthe (Oregon State U.); (Ariz)

2012-07-27T23:59:59.000Z

316

Comparison of {sup 18}F-Fluorothymidine and {sup 18}F-Fluorodeoxyglucose PET/CT in Delineating Gross Tumor Volume by Optimal Threshold in Patients With Squamous Cell Carcinoma of Thoracic Esophagus  

SciTech Connect

Purpose: To determine the optimal method of using {sup 18}F-fluorothymidine (FLT) positron emission tomography (PET)/computed tomography (CT) simulation to delineate the gross tumor volume (GTV) in esophageal squamous cell carcinoma verified by pathologic examination and compare the results with those using {sup 18}F-fluorodeoxyglucose (FDG) PET/CT. Methods and Materials: A total of 22 patients were enrolled and underwent both FLT and FDG PET/CT. The GTVs with biologic information were delineated using seven different methods in FLT PET/CT and three different methods in FDG PET/CT. The results were compared with the pathologic gross tumor length, and the optimal threshold was obtained. Next, we compared the simulation plans using the optimal threshold of FLT and FDG PET/CT. The radiation dose was prescribed as 60 Gy in 30 fractions with a precise radiotherapy technique. Results: The mean +- standard deviation pathologic gross tumor length was 4.94 +- 2.21 cm. On FLT PET/CT, the length of the standardized uptake value 1.4 was 4.91 +- 2.43 cm. On FDG PET/CT, the length of the standardized uptake value 2.5 was 5.10 +- 2.18 cm, both of which seemed more approximate to the pathologic gross tumor length. The differences in the bilateral lung volume receiving >=20 Gy, heart volume receiving >=40 Gy, and the maximal dose received by spinal cord between FLT and FDG were not significant. However, the values for mean lung dose, bilateral lung volume receiving >=5, >=10, >=30, >=40, and >=50 Gy, mean heart dose, and heart volume receiving >=30 Gy using FLT PET/CT-based planning were significant lower than those using FDG PET/CT. Conclusion: A standardized uptake value cutoff of 1.4 on FLT PET/CT and one of 2.5 on FDG PET/CT provided the closest estimation of GTV length. Finally, FLT PET/CT-based treatment planning provided potential benefits to the lungs and heart.

Han Dali [Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Jinan, Shandong Province (China); Yu Jinming, E-mail: yujmwin@yahoo.c [Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Jinan, Shandong Province (China); Yu Yonghua; Zhang Guifang; Zhong Xiaojun; Lu Jie; Yin Yong [Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Jinan, Shandong Province (China); Fu Zheng [Department of Nuclear Medicine, Shandong Cancer Hospital and Institute, Jinan, Shandong Province (China); Mu Dianbin [Department of Pathology, Shandong Cancer Hospital and Institute, Jinan, Shandong Province (China); Zhang Baijiang [Department of Thoracic Surgery, Shandong Cancer Hospital and Institute, Jinan, Shandong Province (China); He Wei; Huo Zhijun; Liu Xijun; Kong Lei [Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Jinan, Shandong Province (China); Zhao Shuqiang [Department of Nuclear Medicine, Shandong Cancer Hospital and Institute, Jinan, Shandong Province (China); Sun Xiangyu [Department of Pathology, Shandong Cancer Hospital and Institute, Jinan, Shandong Province (China)

2010-03-15T23:59:59.000Z

317

Radiation dose reduction to the breast in thoracic CT: Comparison of bismuth shielding, organ-based tube current modulation, and use of a globally decreased tube current  

SciTech Connect

Purpose: The purpose of this work was to evaluate dose performance and image quality in thoracic CT using three techniques to reduce dose to the breast: bismuth shielding, organ-based tube current modulation (TCM) and global tube current reduction. Methods: Semi-anthropomorphic thorax phantoms of four different sizes (15, 30, 35, and 40 cm lateral width) were used for dose measurement and image quality assessment. Four scans were performed on each phantom using 100 or 120 kV with a clinical CT scanner: (1) reference scan; (2) scan with bismuth breast shield of an appropriate thickness; (3) scan with organ-based TCM; and (4) scan with a global reduction in tube current chosen to match the dose reduction from bismuth shielding. Dose to the breast was measured with an ion chamber on the surface of the phantom. Image quality was evaluated by measuring the mean and standard deviation of CT numbers within the lung and heart regions. Results: Compared to the reference scan, dose to the breast region was decreased by about 21% for the 15-cm phantom with a pediatric (2-ply) shield and by about 37% for the 30, 35, and 40-cm phantoms with adult (4-ply) shields. Organ-based TCM decreased the dose by 12% for the 15-cm phantom, and 34-39% for the 30, 35, and 40-cm phantoms. Global lowering of the tube current reduced breast dose by 23% for the 15-cm phantom and 39% for the 30, 35, and 40-cm phantoms. In phantoms of all four sizes, image noise was increased in both the lung and heart regions with bismuth shielding. No significant increase in noise was observed with organ-based TCM. Decreasing tube current globally led to similar noise increases as bismuth shielding. Streak and beam hardening artifacts, and a resulting artifactual increase in CT numbers, were observed for scans with bismuth shields, but not for organ-based TCM or global tube current reduction. Conclusions: Organ-based TCM produces dose reduction to the breast similar to that achieved with bismuth shielding for both pediatric and adult phantoms. However, organ-based TCM does not affect image noise or CT number accuracy, both of which are adversely affected by bismuth shielding. Alternatively, globally decreasing the tube current can produce the same dose reduction to the breast as bismuth shielding, with a similar noise increase, yet without the streak artifacts and CT number errors caused by the bismuth shields. Moreover, globally decreasing the tube current reduces the dose to all tissues scanned, not simply to the breast.

Wang Jia; Duan Xinhui; Christner, Jodie A.; Leng Shuai; Yu Lifeng; McCollough, Cynthia H. [Department of Radiology, Mayo Clinic, Rochester, Minnesota 55905 (United States)

2011-11-15T23:59:59.000Z

318

Neutrino-nucleus DIS data and their consistency with nuclear PDFs  

E-Print Network (OSTI)

In this talk, we discuss the compatibility of different deeply inelastic neutrino-nucleus data sets and the universal nuclear PDFs. This is an issue that has lately been investigated by different groups but the conclusions have been surprisingly contradictory. While some studies have found a good overall agreement between the nuclear PDFs and the neutrino data, others have claimed for an incompatibility. Here, we demonstrate that the independent neutrino data sets from NuTeV, CHORUS and CDHSW collaborations differ in the absolute overall normalization and that it is not possible to accurately reproduce all the data simultaneously with a single set of PDFs. Our strategy to overcome this difficulty and allow a consistent use of all neutrino data in global PDF analyses is to normalize the data by the integrated cross-sections thereby cancelling possible inaccuracies in the absolute normalization. Indeed, this brings all data to a surprisingly good mutual agreement underscoring the x-dependence of the nuclear modifications in a model-independent way. The consistency of these data with the present nuclear PDFs is verified by introducing a method to test the effect of a new data set in an existing global fit that performed a Hessian error analysis.

Hannu Paukkunen; Carlos A. Salgado

2013-06-11T23:59:59.000Z

319

On the (Dis)similarity of Transactional Memory Workloads Clay Hughes  

E-Print Network (OSTI)

characterization techniques will help TM architects select a small, diverse, set of TM workloads for their design to their similarities outside of the traditional lock/barrier model. This is a pitfall for computer architects. If too that architects can use to choose which programs to run based on the transactional feature that needs

Roy, Subrata

320

Dis2PPI: A Workflow Designed to Integrate Proteomic and Genetic Disease Data  

Science Conference Proceedings (OSTI)

Experiments in bioinformatics are based on protocols that employ different steps for data mining and data integration, collectively known as computational workflows. Considering the use of databases in the biomedical sciences software that is able to ... Keywords: Bioinformatics, Data Integration, Interactomes Networks, Proteome Data, Systems Biology

Daniel Luis Notari, Samuel Brando Oldra, Mauricio Adami Mariani, Cristian Reolon, Diego Bonatto

2012-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Dis2PPI: A Workflow Designed to Integrate Proteomic and Genetic Disease Data  

Science Conference Proceedings (OSTI)

Experiments in bioinformatics are based on protocols that employ different steps for data mining and data integration, collectively known as computational workflows. Considering the use of databases in the biomedical sciences software that is able to ...

Daniel Luis Notari; Samuel Brando Oldra; Mauricio Adami Mariani; Cristian Reolon; Diego Bonatto

2012-07-01T23:59:59.000Z

322

Pelagic fishes are not evenly dispersed in the oceans, but aggregate at dis-  

E-Print Network (OSTI)

in this vast and open environment. Nomadic species such as mackerels, tunas, and sharks form assemblages supports a greater abun- The occurrence of yellowfin tuna (Thunnus albacares)Thunnus albacares- ward radiating valleys and ridges of magnetic minimums and maximums might provide landmarks in oceanic

Klimley, A. Peter

323

The (Dis)advantaged Incumbents: Estimating Incumbency Effects in Indian State Legislatures  

E-Print Network (OSTI)

e . L i t e r a c y rate, electricity, state p o p u l a t iStates Independent Variables Literacy Rate Electricity

Uppal, Yogesh

2005-01-01T23:59:59.000Z

324

Achieving Energy Performance in spite of complex systems and dis-jointed design  

E-Print Network (OSTI)

The extensively refurbished heritage government department office building in Canberra's Parliamentary circle, has managed to achieve its target energy performance levels contrary to expectations following difficult design and construction processes, through careful and thorough commissioning and tuning. The existing two storey 5,000m2 sandstone building was completely gutted and brought to a new life as a head office for one of Australia's federal government departments. The building was stripped back to a bare shell, before being re-created to a Grade A office with numerous tenant systems, including a 125kW data centre with a series of complex multi-layered alarm and protection systems. Given the extent of incomplete or contradictory designs, the commissioning team needed to carry out substantial planning, coordination and framing of test scenarios in order to bring all issues to a close, all the while being cognisant of the final desired energy performance outcome and close scrutiny by the Tenant representative of all commissioning planning and witness testing. This paper presents an overview of the challenges that needed to resolved during the course of the commissioning and tuning processes to achieve/maintain the target energy performance outcome (4.5 Stars NABERS - approximately 70-75kg/CO2e/m2/year) after 12 months of occupation and operation. In order to aid understanding, we have assessed the procedures and steps taken against the Soft landings guidelines and core principles.

Ardren, C.; Bannister, P.

2012-01-01T23:59:59.000Z

325

Twist-4 Matrix Elements of the Nucleon from Recent DIS Data at CERN and SLAC  

E-Print Network (OSTI)

We analyse the recent precision measurements of the lepton-hadron deep inelastic scattering at CERN and SLAC to extract model independent constraints among the nucleon matrix elements of the twist-4 operators. We also study a parameterization of these matrix elements and point out the possibility that the matrix elements of the quark-gluon mixed operator has a negative value of the order of $- (400 \\pm 100\\ {\\rm MeV})^2$ at 5 GeV$^2$ renormalization scale.

S. Choi; T. Hatsuda; Y. Koike; Su H. Lee

1993-03-17T23:59:59.000Z

326

Partner (dis)agreement on moving desires and the subsequent moving behaviour of couples  

E-Print Network (OSTI)

that although families with children are fairly immobile, it is common for one or both partners to still desire to move. There is also some evidence that tenure commitments are linked to desire disagreements. Highly committed homeowning couples disagree in 18... .55% of cases, whereas disagreements are slightly more common amongst renting couples (just over 21%). Given that selection into home ownership is facilitated by wealth accumulation with age, it may be that the older average age of homeowners is driving...

Coulter, Rory; van Ham, Maarten; Feijten, Peteke

327

Dis/locating audience : transnational media flows and the online circulation of East Asian television drama  

E-Print Network (OSTI)

It is commonly accepted that media and communication technologies play pivotal roles in the complex processes of what is broadly termed "globalization." The increasing speed, volume, and scale of transnational circulation ...

Li, Xiaochang, S.M. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

328

Slow proton production in semi-inclusive DIS off nuclei: the role of final state interaction  

E-Print Network (OSTI)

The effects of the final state interaction on the production of slow protons in semi-inclusive deep-inelastic lepton scattering off nuclei is considered within the spectator mechanism and a realistic approach in which the rescattering in the medium of both the recoiling proton and the hadronizing nucleon debris are taken into account.

M. Alvioli; C. Ciofi degli Atti; V. Palli

2006-09-13T23:59:59.000Z

329

Higher twists in polarized DIS and the size of the constituent quark  

SciTech Connect

The spontaneous breaking of chiral symmetry implies the presence of a short-distance scale in the QCD vacuum, which phenomenologically may be associated with the ''size'' of the constituent quark, rho {approx} 0.3 fm. We discuss the role of this scale in the matrix elements of the twist-4 and 3 quark-gluon operators determining the leading power (1/Q{sup 2}-) corrections to the moments of the nucleon spin structure functions. We argue that the flavor-nonsinglet twist-4 matrix element, f{sub 2}{sup u-d}, has a sizable negative value of the order rho{sup -2}, due to the presence of sea quarks with virtualities {approx} rho{sup -2} in the proton wave function. The twist-3 matrix element, d{sub 2}, is not related to the scale rho{sup -2}. Our arguments support the results of previous calculations of the matrix elements in the instanton vacuum model. We show that this qualitative picture is in agreement with the phenomenological higher-twist correction extracted from an NLO QCD fit to the world data on g{sub 1}{sup p} and g{sub 1}{sup n}, which include recent data from the Jefferson Lab Hall A and COMPASS experiments. We comment on the implications of the short-distance scale rho for quark-hadron duality and the x-dependence of higher-twist contributions.

Alexander Sidorov; Christian Weiss

2006-02-15T23:59:59.000Z

330

Study on applying ISO/DIS 27799 to medical industry's ISMS  

Science Conference Proceedings (OSTI)

At present, as medical care sites use more and more IT system, information systems have come to play an important role in the business operation of medical organizations. It is an important goal for management at medical organization in Taiwan to keep ... Keywords: CNS, HIPAA, HISPP/GD, health information security, information governance, information security management system (ISMS), risk appetite

Kwo-Jean Farn; Jiann-Ming Hwang; Shu-Kuo Lin

2007-04-01T23:59:59.000Z

331

Organ doses, effective doses, and risk indices in adult CT: Comparison of four types of reference phantoms across different examination protocols  

SciTech Connect

Purpose: Radiation exposure from computed tomography (CT) to the public has increased the concern among radiation protection professionals. Being able to accurately assess the radiation dose patients receive during CT procedures is a crucial step in the management of CT dose. Currently, various computational anthropomorphic phantoms are used to assess radiation dose by different research groups. It is desirable to better understand how the dose results are affected by different choices of phantoms. In this study, the authors assessed the uncertainties in CT dose and risk estimation associated with different types of computational phantoms for a selected group of representative CT protocols. Methods: Routinely used CT examinations were categorized into ten body and three neurological examination categories. Organ doses, effective doses, risk indices, and conversion coefficients to effective dose and risk index (k and q factors, respectively) were estimated for these examinations for a clinical CT system (LightSpeed VCT, GE Healthcare). Four methods were used, each employing a different type of reference phantoms. The first and second methods employed a Monte Carlo program previously developed and validated in our laboratory. In the first method, the reference male and female extended cardiac-torso (XCAT) phantoms were used, which were initially created from the Visible Human data and later adjusted to match organ masses defined in ICRP publication 89. In the second method, the reference male and female phantoms described in ICRP publication 110 were used, which were initially developed from tomographic data of two patients and later modified to match ICRP 89 organ masses. The third method employed a commercial dosimetry spreadsheet (ImPACT group, London, England) with its own hermaphrodite stylized phantom. In the fourth method, another widely used dosimetry spreadsheet (CT-Expo, Medizinische Hochschule, Hannover, Germany) was employed together with its associated male and female stylized phantoms. Results: For fully irradiated organs, average coefficients of variation (COV) ranged from 0.07 to 0.22 across the four male phantoms and from 0.06 to 0.18 across the four female phantoms; for partially irradiated organs, average COV ranged from 0.13 to 0.30 across the four male phantoms and from 0.15 to 0.30 across the four female phantoms. Doses to the testes, breasts, and esophagus showed large variations between phantoms. COV for gender-averaged effective dose and k factor ranged from 0.03 to 0.23 and from 0.06 to 0.30, respectively. COV for male risk index and q factor ranged from 0.06 to 0.30 and from 0.05 to 0.36, respectively; COV for female risk index and q factor ranged from 0.06 to 0.49 and from 0.07 to 0.54, respectively. Conclusions: Despite closely matched organ mass, total body weight, and height, large differences in organ dose exist due to variation in organ location, spatial distribution, and dose approximation method. Dose differences for fully irradiated radiosensitive organs were much smaller than those for partially irradiated organs. Weighted dosimetry quantities including effective dose, male risk indices, k factors, and male q factors agreed well across phantoms. The female risk indices and q factors varied considerably across phantoms.

Zhang Yakun; Li Xiang; Paul Segars, W.; Samei, Ehsan [Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 and Carl E. Ravin Advanced Imaging Laboratories, Duke University, Durham, North Carolina 27705 (United States); Carl E. Ravin Advanced Imaging Laboratories, Duke University, Durham, North Carolina 27705 and Department of Radiology, Duke University, Durham, North Carolina 27705 (United States); Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States); Carl E. Ravin Advanced Imaging Laboratories, Duke University, Durham, North Carolina 27705 (United States) and Department of Radiology, Duke University, Durham, North Carolina 27705 (United States); Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States); Carl E. Ravin Advanced Imaging Laboratories, Duke University, Durham, North Carolina 27705 (United States); Department of Radiology, Duke University, Durham, North Carolina 27705 (United States) and Departments of Physics, Biomedical Engineering, and Electrical and Computer Engineering, Duke University, Durham, North Carolina 27705 (United States)

2012-06-15T23:59:59.000Z

332

NJ WY AK AL CA AR CO CT DE FL GA HI ID KS IL IN IA IA KY LA  

Gasoline and Diesel Fuel Update (EIA)

0.00-1.99 0.00-1.99 2.00-2.99 3.00-3.99 4.00-4.99 5.00-5.99 6.00-6.99 7.00+ NJ WY AK AL CA AR CO CT DE FL GA HI ID KS IL IN IA IA KY LA ME MI MA MD MN MS MT MO NE ND OH NV NM NY NH NC OK OR PA RI SC SD TN TX UT VT WA WV WI AZ VA DC 0.00-1.99 2.00-2.99 3.00-3.99 4.00-4.99 5.00-5.99 6.00-6.99 7.00+ 18. Average Price of Natural Gas Delivered to U.S. Onsystem Industrial Consumers, 1996 (Dollars per Thousand Cubic Feet) Figure 19. Average Price of Natural Gas Delivered to U.S. Electric Utilities, 1996 (Dollars per Thousand Cubic Feet) Figure Sources: Federal Energy Regulatory Commission (FERC), Form FERC-423, "Monthly Report of Cost and Quality of Fuels for Electric Plants," and Energy Information Administration (EIA), Form EIA-176, "Annual Report of Natural and Supplemental Gas Supply and Disposition." Note: In 1996, consumption of natural gas for agricultural use

333

MATH 56A SPRING 2008 STOCHASTIC PROCESSES 135 6.2. distribution of At, Bt, Ct. On the second day I proved a bunch  

E-Print Network (OSTI)

are the same. Ct is different. I used the example of the Poisson light bulb to illustrate the dif- ference = 2000 hrs Although each light bulb has an expected life of 1000 hours, the light bulbs currently. The Poisson bulb is as good as new as long as it is working. So, E(Bt) = E(T) = 1 = µ = 1000 hrs E(At) = 1

Igusa, Kiyoshi

334

Appendix to the final environmental impact report supplement. Northeast Corridor Improvement Project electrification, New Haven, CT to Boston, MA. Final report  

SciTech Connect

This document is an appendix to the final Environmental Impact Report Supplement, published on February 15, 1995, addressing the proposal by the National Railroad Passenger Corporation (Amtrak) to complete the electrification of the Northeast Corridor main line by extending electric traction from New Haven, CT, to Boston, MA. The purpose of this document is to discuss the selection of the Boston area electrical substation site and the relocation of a paralleling station in East Foxboro.

NONE

1995-05-01T23:59:59.000Z

335

Record of decision: Final environmental impact statement/report and 4(f) statement. Northeast Corridor Improvement Project electrification, New Haven, CT to Boston, MA. Final report  

Science Conference Proceedings (OSTI)

This record of decision (ROD) completes the environmental review by the Federal Administration (FRA) of the proposal by the National Railroad Passenger Corporation (Amtrak) to extend electric train operation from New Haven, CT, to Boston, MA. In this ROD, FRA approves Amtrak`s proposal subject to the inclusion into the project of a number of measures to eliminate or minimize potential adverse environmental impacts.

NONE

1995-05-01T23:59:59.000Z

336

Final environmental impact statement/report and 4(f) statement. Volume 1. Northeast corridor improvement project electrification: New Haven, CT to Boston, MA. Final report  

SciTech Connect

This document is the final environmental impact statement and final environmental impact report (FEIS/R) on the proposal by the National Railroad Passenger Corporation (Amtrak) to complete the electrification of the Northeast Corridor main line by extending electric traction from New Haven, CT, to Boston, MA. This document (Volume I) is the main body of the FEIS/R and includes a 4(f) Statement on the proposed location of an electrification facility in the Great Swamp Wildlife Management Area.

NONE

1994-10-31T23:59:59.000Z

337

Final environmental impact statement/report. Volume 2. Technical studies. Northeast corridor improvement project electrification: New Haven, CT to Boston, MA  

SciTech Connect

This document is the final environmental impact statement and final environmental impact report (FEIS/R) on the proposal by the National Railroad Passenger Corporation (Amtrak) to complete the electrification of the Northeast Corridor main line by extending electric traction from New Haven, CT, to Boston, MA. This document (Volume II) presents additional technical studies to supplement Volume III of the DEIS/R issued in October 1993 (PB94-111838).

NONE

1994-10-01T23:59:59.000Z

338

Geology, hydrothermal petrology, stable isotope geochemistry, and fluid inclusion geothermometry of LASL geothermal test well C/T-1 (Mesa 31-1), East Mesa, Imperial Valley, California, USA  

DOE Green Energy (OSTI)

Borehole Mesa 31-1 (LASL C/T-1) is an 1899-m (6231-ft) deep well located in the northwestern part of the East Mesa Geothermal Field. Mesa 31-1 is the first Calibration/Test Well (C/T-1) in the Los Alamos Scientific Laboratory (LASL), Geothermal Log Interpretation Program. The purpose of this study is to provide a compilation of drillhole data, drill cuttings, well lithology, and formation petrology that will serve to support the use of well LASL C/T-1 as a calibration/test well for geothermal logging. In addition, reviews of fluid chemistry, stable isotope studies, isotopic and fluid inclusion geothermometry, and the temperature log data are presented. This study provides the basic data on the geology and hydrothermal alteration of the rocks in LASL C/T-1 as background for the interpretation of wireline logs.

Miller, K.R.; Elders, W.A.

1980-08-01T23:59:59.000Z

339

Predicting target vessel location on robot-assisted coronary artery bypass graft using CT to ultrasound registration  

SciTech Connect

Purpose: Although robot-assisted coronary artery bypass grafting (RA-CABG) has gained more acceptance worldwide, its success still depends on the surgeon's experience and expertise, and the conversion rate to full sternotomy is in the order of 15%-25%. One of the reasons for conversion is poor pre-operative planning, which is based solely on pre-operative computed tomography (CT) images. In this paper, the authors propose a technique to estimate the global peri-operative displacement of the heart and to predict the intra-operative target vessel location, validated via both an in vitro and a clinical study. Methods: As the peri-operative heart migration during RA-CABG has never been reported in the literatures, a simple in vitro validation study was conducted using a heart phantom. To mimic the clinical workflow, a pre-operative CT as well as peri-operative ultrasound images at three different stages in the procedure (Stage{sub 0}--following intubation; Stage{sub 1}--following lung deflation; and Stage{sub 2}--following thoracic insufflation) were acquired during the experiment. Following image acquisition, a rigid-body registration using iterative closest point algorithm with the robust estimator was employed to map the pre-operative stage to each of the peri-operative ones, to estimate the heart migration and predict the peri-operative target vessel location. Moreover, a clinical validation of this technique was conducted using offline patient data, where a Monte Carlo simulation was used to overcome the limitations arising due to the invisibility of the target vessel in the peri-operative ultrasound images. Results: For the in vitro study, the computed target registration error (TRE) at Stage{sub 0}, Stage{sub 1}, and Stage{sub 2} was 2.1, 3.3, and 2.6 mm, respectively. According to the offline clinical validation study, the maximum TRE at the left anterior descending (LAD) coronary artery was 4.1 mm at Stage{sub 0}, 5.1 mm at Stage{sub 1}, and 3.4 mm at Stage{sub 2}. Conclusions: The authors proposed a method to measure and validate peri-operative shifts of the heart during RA-CABG. In vitro and clinical validation studies were conducted and yielded a TRE in the order of 5 mm for all cases. As the desired clinical accuracy imposed by this procedure is on the order of one intercostal space (10-15 mm), our technique suits the clinical requirements. The authors therefore believe this technique has the potential to improve the pre-operative planning by updating peri-operative migration patterns of the heart and, consequently, will lead to reduced conversion to conventional open thoracic procedures.

Cho, Daniel S.; Linte, Cristian; Chen, Elvis C. S.; Bainbridge, Daniel; Wedlake, Chris; Moore, John; Barron, John; Patel, Rajni; Peters, Terry [Imaging Research Laboratories, Robarts Research Institute and Biomedical Engineering Graduate Program, University of Western Ontario, Ontario N6A 5K8 (Canada); Imaging Research Laboratories, Robarts Research Institute and Biomedical Imaging Resource, Mayo Clinic, Rochester, Minnesota 55905 (United States); Imaging Research Laboratories, Robarts Research Institute, University of Western Ontario, Ontario N6A 5K8 (Canada); Canadian Surgical Technologies and Advanced Robotics, London, Ontario N6A 5A5 (Canada); Imaging Research Laboratories, Robarts Research Institute, University of Western Ontario, Ontario N6A 5K8 (Canada); Department of Computer Science, University of Western Ontario, Ontario N6A 5B7 (Canada); Canadian Surgical Technologies and Advanced Robotics, London, Ontario N6A 5A5 (Canada); Imaging Research Laboratories, Robarts Research Institute, Biomedical Engineering Graduate Program, University of Western Ontario N6A 5K8 (Canada); and Canadian Surgical Technologies and Advanced Robotics, London, Ontario N6A 5A5 (Canada)

2012-03-15T23:59:59.000Z

340

API 5CT  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2013. Symposium, Advanced Steel Metallurgy: Design, Processing, and Technological...

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

ContaCt  

NLE Websites -- All DOE Office Websites (Extended Search)

with enhanced capabilities for producing syngas. Christopher Matranga, right, and Neetha Khan, a post-doctoral research associate, prepare an experiment in NETL's Omicron Analysis...

342

CT Clean Energy Communities  

Energy.gov (U.S. Department of Energy (DOE))

The Clean Energy Communities program, offered by the Clean Energy Finance & Investment Authority and the Connecticut Energy Efficiency Fund, offers incentives for communities that pledge their...

343

The Lung Image Database Consortium (LIDC) and Image Database Resource Initiative (IDRI): A Completed Reference Database of Lung Nodules on CT Scans  

SciTech Connect

Purpose: The development of computer-aided diagnostic (CAD) methods for lung nodule detection, classification, and quantitative assessment can be facilitated through a well-characterized repository of computed tomography (CT) scans. The Lung Image Database Consortium (LIDC) and Image Database Resource Initiative (IDRI) completed such a database, establishing a publicly available reference for the medical imaging research community. Initiated by the National Cancer Institute (NCI), further advanced by the Foundation for the National Institutes of Health (FNIH), and accompanied by the Food and Drug Administration (FDA) through active participation, this public-private partnership demonstrates the success of a consortium founded on a consensus-based process. Methods: Seven academic centers and eight medical imaging companies collaborated to identify, address, and resolve challenging organizational, technical, and clinical issues to provide a solid foundation for a robust database. The LIDC/IDRI Database contains 1018 cases, each of which includes images from a clinical thoracic CT scan and an associated XML file that records the results of a two-phase image annotation process performed by four experienced thoracic radiologists. In the initial blinded-read phase, each radiologist independently reviewed each CT scan and marked lesions belonging to one of three categories (''nodule{>=}3 mm,''''nodule<3 mm,'' and ''non-nodule{>=}3 mm''). In the subsequent unblinded-read phase, each radiologist independently reviewed their own marks along with the anonymized marks of the three other radiologists to render a final opinion. The goal of this process was to identify as completely as possible all lung nodules in each CT scan without requiring forced consensus. Results: The Database contains 7371 lesions marked ''nodule'' by at least one radiologist. 2669 of these lesions were marked ''nodule{>=}3 mm'' by at least one radiologist, of which 928 (34.7%) received such marks from all four radiologists. These 2669 lesions include nodule outlines and subjective nodule characteristic ratings. Conclusions: The LIDC/IDRI Database is expected to provide an essential medical imaging research resource to spur CAD development, validation, and dissemination in clinical practice.

NONE

2011-02-15T23:59:59.000Z

344

CT-Guided Thrombin Injection to Control Rapid Expansion of Ascending Aortic False Aneurysm 15 Months After Bentall-Bono Operation  

Science Conference Proceedings (OSTI)

We report a case of 57-year-old man treated emergently with CT-guided local thrombin injection as the first, life-saving step for control rapid expansion of the aortic pseudoaneurysm. Fifteen months earlier, he was operated on for ascending aortic true aneurysm and coronary artery disease. Upon admission, he had an anterior thoracic wall pulsatile tumor. Due to critical status, definite surgery was postponed and thrombin was injected close to the origin of pseudoaneurysm. It controlled successfully, bleeding from the ascending aorta and enabled the patient to survive the acute phase.

Perek, Bartlomiej, E-mail: bperek@yahoo.com; Urbanowicz, Tomasz [Poznan University of Medical Sciences, Department of Cardiac Surgery (Poland); Zabicki, Bartosz [Poznan University of Medical Sciences, Department of Radiology (Poland); Puslecki, Mateusz [Poznan University of Medical Sciences, Department of Cardiac Surgery (Poland); Juszkat, Robert, E-mail: radiologiamim@wp.pl [Poznan University of Medical Sciences, Department of Radiology (Poland); Jemielity, Marek [Poznan University of Medical Sciences, Department of Cardiac Surgery (Poland)

2011-02-15T23:59:59.000Z

345

Cko.rtef' -, CtIOr4rt...tt. G~P:s (ITfS'rHO) u.t A,8,C,D~Jisf."c{ por..f,s  

E-Print Network (OSTI)

,)t. (..-) ~\\1\\Ct. (hfo{'" rt.. -....1. O.Ms Wt ,et1'"" (b-s),+ (t"1.--i:\\t... rr..'t ·...( s",,"(r,··d= fit. Stl~ Cko.rtef' -, CtIOr4rt...tt. G~P:s ~~~1 (ITfS'rHO) u.t A,8,C,D~Jisf."c{ por..f,s 011\\" ';f\\f. I i ~"o\\ ""'"",t...&. "",... r. I. ,_ . ...J... Urdc. ""~~"t lUi""~A .J- ..:v.(~ ·· c...e.t e't.."'

Li, Kin-Yin

346

The Value of Green Tri-City Speaker Series  

E-Print Network (OSTI)

,000 member companies Boston Properties General Electric Corporation Wells Fargo ­ Number of major banks ­ Water ­ Energy ­ Materials and resources ­ Indoor environmental quality #12;6 Findings Indicate Progress;8 Commercial Construction - Findings Energy ­ Overall LEED buildings consume an average of 25% LESS energy

347

Should We Try To Get The Prices Right?  

E-Print Network (OSTI)

$11 total social cost will use of transportation re s o usocial-cost analysis to understand the relative importance of transportationtransportation modes must be priced at cost but $12 social cost)

Delucchi, Mark

2000-01-01T23:59:59.000Z

348

Tri-County Electric Coop | Open Energy Information  

Open Energy Info (EERE)

Coop Coop Place Minnesota Utility Id 19157 Utility Location Yes Ownership C NERC Location MRO NERC MRO Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Are Lighting - 150W HPS Unmetered Lighting Area Lighting - 100W HPS Unmetered Lighting City Service (multi-phase) Commercial City Service (single-phase) Residential Industrial Service (multi-phase) Industrial Interruptible Heating - Multiphase Commercial Interruptible Heating - Single Phase Residential Large Commercial Service - Multiphase Industrial Large Commercial Service - Single Phase Industrial

349

FUNDING FOR Tri-Party Agreement (TPA) MILESTONES  

NLE Websites -- All DOE Office Websites (Extended Search)

a copy of HQ Planning and Target Guidance to EPA and State. 2. RL provides the budget formulation guidance to the Contractors. 3. RL provides budget formulation guidance to...

350

Piecewise tri-linear contouring for multi-material volumes  

Science Conference Proceedings (OSTI)

The ability to model objects composed of multiple materials has become increasingly more demanded in scientific applications. The visualization of a discrete multi-material volume often suffers from voxelization of the boundary between materials. We ...

Powei Feng; Tao Ju; Joe Warren

2010-06-01T23:59:59.000Z

351

Tritium Assay and Dispensing in TriMARS  

Science Conference Proceedings (OSTI)

Concept and Facility / Proceedings of the Ninth International Conference on Tritium Science and Technology

S. H. Son; K. M. Song; S. K. Lee; K. W. Lee; B. W. Ko

352

2004 INDEX OF INNOVATION AND TECHNOLOGY TRI-CITIES, WASHINGTON  

E-Print Network (OSTI)

of Energy and Areva--formerly Siemens Power Corporation and Framatome ANP-- have been joined by Meso

353

2011 TriView National Bank Case Study  

Science Conference Proceedings (OSTI)

... plus foreclosed assets and restructured loans, divided ... loans/thrifts with multiple offices Credit unions ... refreshers during the morning office huddles. ...

2013-06-06T23:59:59.000Z

354

Frostbite Theater - Experiments You Can Try at Home! - Let's...  

NLE Websites -- All DOE Office Websites (Extended Search)

Video (Optical Illusions) Frostbite Theater Main Index Next Video (Amazing Anti-Gravity Water Trick) Amazing Anti-Gravity Water Trick Let's Make Oobleck I bleck, you...

355

For stricter emissions needs, try custom catalytic reduction  

Science Conference Proceedings (OSTI)

When O`Brien California Cogen Ltd. was contracted to develop a system to generate steam for an Artesia, Calif., mild producer`s evaporation process, local regulations required NO{sub x} emissions reduced 9 ppm and CO to 10 ppm. Johnson Matthey supplied the solution with a custom system combining an oxidation catalyst to control CSO emissions and a selective catalytic reduction (SCR) system to control NO{sub x}. O`Brien`s cogen operation runs off an aircraft-derivative GE Gas Turbine, model LM2500, with a 22.4-MW output. The catalyst system is installed in the exhaust stream of a heat recovery steam generator (HRSG) form the Henry Vogt Machine Co.

Chambers, A.

1995-08-01T23:59:59.000Z

356

Frostbite Theater - Experiments You Can Try at Home! - How It...  

NLE Websites -- All DOE Office Websites (Extended Search)

Amazing Anti-Gravity Water Trick Previous Video (Amazing Anti-Gravity Water Trick) Frostbite Theater Main Index Next Video (Measure the Speed of Light - With Chocolate) Measure...

357

Frostbite Theater - Experiments You Can Try at Home! - Amazing...  

NLE Websites -- All DOE Office Websites (Extended Search)

Steve Joanna: Here's a trick that you've probably seen before. Pour some water into a jar. Take a card and place it over the opening. Flip the jar over and let go of the card....

358

TRI-CITIES, WASHINGTON INNOVATION AND TECHNOLOGY INDEX  

E-Print Network (OSTI)

, corporate mandates for ISO 14001 may provide a vehicle for firms to signal to market participants). Quality management systems also promote lean manufacturing practices that encourage organizational and construction (SICs 10-19), manufacturing (SICs 20-39) and transportation, communications, energy, and sanitary

359

Frostbite Theater - Experiments You Can Try at Home! - Squealing...  

NLE Websites -- All DOE Office Websites (Extended Search)

Theater Main Index Next Video (Optical Illusions) Optical Illusions Squealing Dry Ice What happens when a warm piece of metal comes into contact with a block of dry ice? ...

360

(TWST = Tri-Cities West Building) West Building  

E-Print Network (OSTI)

170 PNNL OFFICE 122 PNNL OFFICE 121 PNNL OFFICE 120 PNNL OFFICE 119 PNNL OFFICE 118 PNNL OFFICE 117 PNNL OFFICE 116 PNNL OFFICE 115 PNNL OFFICE 114 PNNL OFFICE 113 PNNL OFFICE 112 PNNL OFFICE 111 PNNL OFFICE 110 LOBBY ELEV 100EL ALCOVE 161C B161ESAHC SHWR 163 PNNL 160 PNNL 168 PNNL 168A PNNL 168B PNNL

Collins, Gary S.

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Is your resNet support boat sinking?: try outsourcing!  

Science Conference Proceedings (OSTI)

Skidmore is a small liberal arts College with 1,800 residential students. Nearly every student has their own computer and some have more than one, so support is becoming an ever increasing challenge. With viruses, worms and spyware running rampant in ... Keywords: outsource, resNet, students, support

Brien G. Muller; Mark A. Bauer

2005-11-01T23:59:59.000Z

362

B-tries for disk-based string management  

Science Conference Proceedings (OSTI)

A wide range of applications require that large quantities of data be maintained in sort order on disk. The B-tree, and its variants, are an efficient general-purpose disk-based data structure that is almost universally used for this task. The B-trie ... Keywords: B-tree, Burst trie, Data structures, Secondary storage, Vocabulary accumulation, Word-level indexing

Nikolas Askitis; Justin Zobel

2009-01-01T23:59:59.000Z

363

Department of Energy Tri-Party Agreement Administrative Record...  

NLE Websites -- All DOE Office Websites (Extended Search)

Link to Department of Energy - Richland Operations Office Google Logo Hanford.Gov Search Go Hanford Site Department of Energy logo AR PIR Simple Search Advanced Search Predefined...

364

What quantum mechanics is trying to tell us  

Science Conference Proceedings (OSTI)

This article presents a novel interpretation of quantum mechanics. It extends the meaning of measurement to include all property-indicating facts. Intrinsically

2000-01-01T23:59:59.000Z

365

Spatial correlation of proton irradiation-induced activity and dose in polymer gel phantoms for PET/CT delivery verification studies  

Science Conference Proceedings (OSTI)

Purpose: This work demonstrates a novel application of BANG3-Pro2 polymer gel dosimeter as a dosimetric phantom able to accurately capture both dose and induced activity. Methods: BANG3-Pro2 dosimeters were irradiated with a clinical proton beam using an unmodulated beam and a spread-out Bragg peak (SOBP) modulation, the latter with a Lucite compensator to introduce a range offset in one quadrant of the circular field. The dosimeters were imaged in a nearby positron emission tomography/computed tomography (PET/CT) unit starting within 5 min of beam-off. Induced positron emission (PE) activity along the central axis of the beam was compared to analytical calculations. Dose distributions were read out using an optical CT scanner and were validated against ion chamber measurements and the treatment plan. The offset between the distal fall-off of dose and activity (50% level) was determined over the entire irradiated field. Lateral profiles of PE were correlated to measured dose for the unmodulated beam delivery. Results: Measured profiles of PE activity along the central beam axis were found to be within 10% of the predictions of analytical calculations. The depth-dose profiles agreed with the reference values (ion chamber or treatment plan) within 3%. The offset between the depth profiles of dose and activity for the unmodulated beam was 8.4 {+-} 1.4 mm. For the compensator-based SOBP delivery, the distribution of offsets throughout the field was found to be bimodal, with the mean of 8.9 {+-} 2.8 mm for the thinner region of the compensator and 4.3 {+-} 2.5 mm for the thicker region. For the pristine beam delivery, lateral profiles of dose and activity were found to exhibit fair spatial correlation throughout the beam range, with the mean 2D gamma index of 0.42 and 91% of the evaluated pixels passing the test. Conclusions: This work presents the first demonstration of simultaneous and accurate experimental measurement of three-dimensional distributions of dose and induced activity and lays the groundwork for further investigations using BANG3-Pro2 as a dosimetric phantom in PET/CT delivery verification studies.

Lopatiuk-Tirpak, Olena; Su Zhong; Li Zuofeng; Hsi Wen; Meeks, Sanford; Zeidan, Omar

2011-12-15T23:59:59.000Z

366

CT-clinical approach to patients with symptoms related to the V, VII, IX-XII cranial nerves and cervical sympathetics  

SciTech Connect

Forty-three patients who had signs and symptoms possibly related to the extracranial course of cranial nerves V, VII, IX, X-XII, and the cervical sympathetics were examined prospectively using high resolution CT to obtain images of thin sections during rapid drip infusion of contrast material. Anatomic areas in the scan protocols included the posterior fossa, cavernous and paranasal sinuses, skull base, temporal bone, nasopharynx, parotid gland, tongue base, and neck. Nine of the 23 patients with possible fifth nerve deficits had extracranial structural lesions that explained the symptoms; none of these nine, however, had typical trigeminal neuralgia. Of eight patients with peripheral seventh nerve abnormalities, two had positive findings on scans. Of five patients presenting with referred ear pain, three had carcinoma of the upper aerodigestive tract. The authors' experience suggests that patients at high risk for structural lesions responsible for cranial nerve deficits can be selected by clinical criteria. Protocols for each clinical setting are presented.

Kalovidouris, A.; Mancuso, A.A.; Dillon, W.

1984-06-01T23:59:59.000Z

367

Comparison of Tumor Volumes as Determined by Pathologic Examination and FDG-PET/CT Images of Non-Small-Cell Lung Cancer: A Pilot Study  

Science Conference Proceedings (OSTI)

Purpose: To determine the cut-off standardized uptake value (SUV) on {sup 18}F fluoro-2-deoxy-glucose (FDG) positron emission tomography/computed tomography (FDG-PET/CT) images that generates the best volumetric match to pathologic gross tumor volume (GTV{sub path}) for non-small-cell lung cancer (NSCLC). Methods and Materials: Fifteen patients with NSCLC who underwent FDG-PET/CT scans followed by lobectomy were enrolled. The surgical specimen was dissected into 5-7-mum sections at approximately 4-mm intervals and stained with hematoxylin and eosin. The tumor-containing area was outlined slice by slice and the GTV{sub path} determined by summing over all the slices, taking into account the interslice thickness and fixation-induced volume reduction. The gross tumor volume from the PET images, GTV{sub PET}, was determined as a function of cut-off SUV. The optimal threshold or optimal absolute SUV was defined as the value at which the GTV{sub PET} was the same as the GTV{sub path}. Results: The fixation process induced a volumetric reduction to 82% +- 10% (range, 62-100%) of the original. The maximal SUV was 10.1 +- 3.6 (range, 4.2-18.7). The optimal threshold and absolute SUV were 31% +- 11% and 3.0 +- 1.6, respectively. The optimal threshold was inversely correlated with GTV{sub path} and tumor diameter (p 0.05). Conclusion: This study evaluated the use of GTV{sub path} as a criterion for determining the optimal cut-off SUV for NSCLC target volume delineation. Confirmatory studies including more cases are being performed.

Yu Jinming, E-mail: jn7984729@public.jn.sd.c [Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Jinan (China); Li Xinke [Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Jinan (China); Xing Ligang [Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Jinan (China); Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Mu Dianbin [Department of Pathology, Shandong Cancer Hospital and Institute, Jinan (China); Fu Zheng [Department of Nuclear Medicine, Shandong Cancer Hospital and Institute, Jinan (China); Sun Xiaorong [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Department of Nuclear Medicine, Shandong Cancer Hospital and Institute, Jinan (China); Sun Xiangyu [Department of Pathology, Shandong Cancer Hospital and Institute, Jinan (China); Yang Guoren [Department of Nuclear Medicine, Shandong Cancer Hospital and Institute, Jinan (China); Zhang Baijiang [Department of Thoracic Surgery, Shandong Cancer Hospital and Institute, Jinan (China); Sun Xindong [Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Jinan (China); Ling, C. Clifton [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY (United States)

2009-12-01T23:59:59.000Z

368

CT appearance of radiation injury of the lung and clinical symptoms after stereotactic body radiation therapy (SBRT) for lung cancers: Are patients with pulmonary emphysema also candidates for SBRT for lung cancers?  

SciTech Connect

Purpose: The purpose of this study was to analyze the computed tomographic (CT) appearance of radiation injury to the lung and clinical symptoms after stereotactic body radiation therapy (SBRT) and evaluate the difference by the presence of pulmonary emphysema (PE) for small lung cancers. Methods and Materials: In this analysis, 45 patients with 52 primary or metastatic lung cancers were enrolled. We evaluated the CT appearance of acute radiation pneumonitis (within 6 months) and radiation fibrosis (after 6 months) after SBRT. Clinical symptoms were evaluated by Common Terminology Criteria for Adverse Events, version 3.0. We also evaluated the relationship between CT appearance, clinical symptoms, and PE. Results: CT appearance of acute radiation pneumonitis was classified as follows: (1) diffuse consolidation, 38.5%; (2) patchy consolidation and ground-glass opacities (GGO), 15.4%; (3) diffuse GGO, 11.5%; (4) patchy GGO, 2.0%; (5) no evidence of increasing density, 32.6%. CT appearance of radiation fibrosis was classified as follows: (1) modified conventional pattern, 61.5%; (2) mass-like pattern, 17.3%; (3) scar-like pattern, 21.2%. Patients who were diagnosed with more than Grade 2 pneumonitis showed significantly less no evidence of increased density pattern and scar-like pattern than any other pattern (p = 0.0314, 0.0297, respectively). Significantly, most of these patients with no evidence of increased density pattern and scar-like pattern had PE (p = 0.00038, 0.00044, respectively). Conclusion: Computed tomographic appearance after SBRT was classified into five patterns of acute radiation pneumonitis and three patterns of radiation fibrosis. Our results suggest that SBRT can be also safely performed even in patients with PE.

Kimura, Tomoki [Department of Radiology, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima (Japan) and Department of Radiology, Kagawa University, School of Medicine, Kagawa (Japan)]. E-mail: tkkimura@med.kawawa-u.ac.jp; Matsuura, Kanji [Department of Radiology, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima (Japan); Murakami, Yuji [Department of Radiology, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima (Japan); Hashimoto, Yasutoshi [Department of Radiology, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima (Japan); Kenjo, Masahiro [Department of Radiology, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima (Japan); Kaneyasu, Yuko [Department of Radiology, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima (Japan); Wadasaki, Koichi [Department of Radiology, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima (Japan); Hirokawa, Yutaka [Hiroshima Heiwa Clinic, Hiroshima (Japan); Ito, Katsuhide [Department of Radiology, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima (Japan); Okawa, Motoomi [Department of Radiology, Kagawa University, School of Medicine, Kagawa (Japan)

2006-10-01T23:59:59.000Z

369

Single and Double Spin Asymmetry Measurements in Semi-Inclusive and Inclusive DIS on Polarized He-3  

SciTech Connect

Jefferson Lab experiment E06-010 measured the target-single spin (SSA) and double spin asymmetries (DSA) in semi-inclusive deep inelastic pion electroproduction on a transversely polarized He-3 target. The measured asymmetry (A_UT) is sensitive to the nucleon transversity and Sivers distribution functions, whereas the measured A_LT asymmetry is related to the transverse momentum dependent PDF g_1T. The kinematics were chosen to be in the valence quark region with x ~ 0.16-0.35 and Q^2 ~ 1.4-2.7 GeV^2. The Collins moment, which is sensitive to transversity, the Sivers and A_LT moments, which are sensitive to the orbital motion of the quarks, were extracted using the azimuthal angular dependence of the measured asymmetries. These data, when combined with the data from other experiments on transversely polarized proton and deuteron targets, will help in extracting the nucleon transverse momentum dependent distribution functions via a global analysis. These semi-inclusive results will be presented and discussed along with the preliminary results for the inclusive single spin asymmetries.

Sulkosky, Vincent A. [MIT; Allada, Kalyan C. [JLAB

2012-06-01T23:59:59.000Z

370

Final environmental impact statement/report. Volume 3. Response to comments on draft environmental impact statement/report. Northeast corridor improvement project electrification: New Haven CT to Boston, MA  

SciTech Connect

This document is the final environmental impact statement and final environmental impact report (FEIS/R) on the proposal by the National Railroad Passenger Corporation (Amtrak) to complete the electrification of the Northeast Corridor main line by extending electric traction from New Haven, CT, to Boston, MA. This document (Volume III) of the FEIS/R presents summaries of comments received on the DEIS/R and responses to these comments.

NONE

1994-10-31T23:59:59.000Z

371

DOE - Office of Legacy Management -- Seymour CT Site - CT 02  

Office of Legacy Management (LM)

Site Fairfield Site Falls City Site Fernald Preserve Gasbuggy Site General Atomics Geothermal Gnome-Coach Site Grand Junction Sites Granite City Site Green River Site Gunnison...

372

Improved quantitative medical CT imaging  

Science Conference Proceedings (OSTI)

... which will in turn reduce the error in measurement of Validate that the phantom developed by NIST is an acceptable model for the human thorax in ...

2011-10-03T23:59:59.000Z

373

CT_50m_Wind  

NLE Websites -- All DOE Office Websites (Extended Search)

UnitedStatesWindHighResolutionConnecticutWindHighResolution.zip> Description: Abstract: Annual average wind resource potential for the state of...

374

"EMM Region","PC","IGCC","PC","Conv. CT","Adv. CT","Conv. CC","Adv. CC","Adv. CC w/CCS","Fuel Cell","Nuclear","Biomass","MSW","On-shore Wind","Off-shore Wind","Solar Thermal","Solar PV"  

U.S. Energy Information Administration (EIA) Indexed Site

Regional cost adjustments for technologies modeled by NEMS by Electric Market Modul (EMM) region 10,11" Regional cost adjustments for technologies modeled by NEMS by Electric Market Modul (EMM) region 10,11" "EMM Region","PC","IGCC","PC","Conv. CT","Adv. CT","Conv. CC","Adv. CC","Adv. CC w/CCS","Fuel Cell","Nuclear","Biomass","MSW","On-shore Wind","Off-shore Wind","Solar Thermal","Solar PV" ,,,"w/CCS" "1 (ERCT)",0.91,0.92,0.92,0.93,0.95,0.91,0.92,0.9,0.96,0.96,0.93,0.93,0.95,0.92,0.86,0.87 "2 (FRCC)",0.92,0.93,0.94,0.93,0.93,0.91,0.92,0.92,0.97,0.97,0.94,0.94,"N/A","N/A",0.89,0.9 "3 (MROE)",1.01,1.01,0.99,0.99,1.01,0.99,0.99,0.97,0.99,1.01,0.99,0.98,0.99,0.97,"N/A",0.96

375

Northeast Corridor improvement project draft environmental impact statement/report for electrification of Northwest Corridor, New Haven, CT. to Boston, MA. Volume 3. Technical appendices. Final report, September 1992-September 1993  

SciTech Connect

The impacts of extending electrification on the National Railroad Passenger Corporation's (Amtrak) Northeast Corridor (NEC) from New Haven, Connecticut to Boston, Massachusetts are of direct concern to the Federal Railroad Administration (FRA). To improve rail service and increase ridership between New York and Boston, Amtrak proposes the electrification of the NEC main line between New Haven, CT and Boston, MA using an overhead 2 x 25,000 volt - 60 hertz power system. The volume Number III contains the detailed technical studies that were performed in order to identify and evaluate the environmental impacts of the proposed project. Some of these studies have been included entirely in the Draft Environmental Impact Statements-draft (DEIS/R) (Volume 1). The technical evaluations performed were based upon regulatory requirements as well as substantive issues raised by individuals and public agencies as part of the public participation program.

Not Available

1993-09-01T23:59:59.000Z

376

Northeast corridor improvement project draft environmental impact statement/report for electrification of Northwest Corridor, New Haven, CT. To Boston, MA. Volume 1. Final report, September 1992-September 1993  

Science Conference Proceedings (OSTI)

The impacts of extending electrification on the National Railroad Passenger Corporation's (Amtrak) Northeast Corridor (NEC) from New Haven, Connecticut to Boston, Massachusetts are of direct concern to the Federal Railroad Administration (FRA). To improve rail service and increase ridership between New York and Boston, Amtrak proposes the electrification of the NEC main line between New Haven, CT and Boston, MA using an overhead 2 X 25,000 volt - 60 hertz power system. This volume considers impacts on the Human and Natural Environment utilizing guidance as outlined in CFR Part 1500, Council on Environmental Quality, Regulations for Implementing the Procedural Requirements of NEPA as amended and the Massachusetts Environmental Policy Act (MEPA) regulations (301 CMR 11:00). Impacts analyzed include changes in the natural environment (air quality, noise and vibration, energy, electromagnetic fields, natural resources, hazardous materials and visual/aesthetics), changes in the social environment (land use and recreation, transportation and traffic), impacts on historic and archaeological sites, changes in transit service and patronage, associated changes in highway and airport congestion, capital costs, operating and maintenance costs, and financial implications. Impacts are identified both for the proposed construction period and for the long-term operation of the alternatives.

Not Available

1993-09-01T23:59:59.000Z

377

Iran J Arthropod-Borne Dis, 2010, 4(2): 5660 A Nasiri et al.: Tick Infestation Rate of ... Short Communication  

E-Print Network (OSTI)

). The fauna of hard and soft ticks (families: Ixodidae and Argasidae) were studied in west Azerbaijan Province diseases in west Azerbaijan (Salari Lak et al. 2008). Distribution of tick fauna in Iran was also performed), Heamaphysalis (H. sulcata), Der- macentor (D.marginatus), and Boophilus (B.annulatus) in East Azerbaijan (Piazak

378

Materials Reliability Program: Advanced FEA Evaluation of Growth of Postulated Circumferential PWSCC Flaws in Pressurizer Nozzle Dis similar Metal Welds (MRP-216, Rev. 1)  

Science Conference Proceedings (OSTI)

Indications of circumferential flaws in the pressurizer nozzles at Wolf Creek raised questions about the need to accelerate refueling outages or take mid-cycle outages at other plants. This study demonstrates the viability of leak detection as a means to preclude the potential for rupture for the pressurizer nozzle dissimilar metal (DM) welds in a group of nine PWRs originally scheduled to perform performance demonstration initiative (PDI) inspection or mitigation during the spring 2008 outage season. Mo...

2007-08-10T23:59:59.000Z

379

UNITtU STATES DI S'lRIC T COUR T DIS'D?IC T OF NIFNE SO T1\\  

E-Print Network (OSTI)

, the Department was the size it is presently with 21 tenure-track members and three empty lines.1 At our last QER by Bonjean/Wilson (1977), Board of Regents (1987), FSU Graduate Policy Council (1989), QER/Sullivan (2000 in the prior QER report), 30 percent of our full professors (4 of 13) were women, 67 percent of our associates

Beresnev, Igor

380

Materials Reliability Program: Advanced FEA Evaluation of Growth of Postulated Circumferential PWSCC Flaws in Pressurizer Nozzle Dis similar Metal Welds (MRP-216)  

Science Conference Proceedings (OSTI)

Indications of circumferential flaws in the pressurizer nozzles at Wolf Creek raised questions about the need to accelerate refueling outages or take mid-cycle outages at other plants. This study demonstrates the viability of leak detection as a means to preclude the potential for rupture for the pressurizer nozzle dissimilar metal (DM) welds in a group of nine PWRs originally scheduled to perform performance demonstration initiative (PDI) inspection or mitigation during the spring 2008 outage season. Mo...

2007-08-02T23:59:59.000Z

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

A Critique of the Theory of Incentive Regulation: Implications for the Design of Performance-Based Regulation (PBR) for Electric Dis tribution Companies  

Science Conference Proceedings (OSTI)

This report is derived from a research project on incentive regulation and its implications for electric distribution companies. It is in two parts. The first summarizes the analysis findings and implications of the project. The second is a technical report that provides review and critique of the theoretical foundations of incentive regulation and provides analysis of current developments in their application to electric distribution company regulations. The report discusses price-cap regulation and per...

2000-09-28T23:59:59.000Z

382

Second biennial tri-laboratory engineering conference on modeling and simulation  

SciTech Connect

This conference was divided into eight sessions. Session one covered the following topics: material behavior and characterization; computation heat transfer; computational fluid dynamics; and hydrodynamics. Topics covered in session two were: structural dynamics; manufacturing process modeling; solid and structural mechanics; and electromagnetics. Session three topics were: materials behavior and characterization; computational heat transfer; computational fluid dynamics; neutron generators and gas transfer systems applications. Topics for session four were: mesh generation and visualization; validation and verification; and pit manufacturing. Session five covered the following: ALE techniques and applications; solid and structural mechanical; and system applications. The three topics of session six were: optimization methods; manufacturing process modeling; and weapon response in hostile environments. Session covered: material behavior and characterization; computational heat transfer; solid and structural mechanics; and mesh generation and visualization. And finally, the topics of session 8 were: manufacturing and process modeling; solid and structural mechanics; uncertainty analysis; and structural dynamics. Paper covered a range of applications, many of which were weapons and weapon systems.

NONE

1997-12-31T23:59:59.000Z

383

Frostbite Theater - Experiments You Can Try at Home! - Let's Measure the  

NLE Websites -- All DOE Office Websites (Extended Search)

Light is a Particle! Light is a Particle! Previous Video (Light is a Particle!) Frostbite Theater Main Index Next Video (Life Cycle of the Monarch Butterfly) Life Cycle of the Monarch Butterfly Let's Measure the Diameter of the Sun! You can measure the diameter of the sun from your own backyard! You'll just need a few simple tools and a little clever math. A really long tape measure is NOT required! As always, NEVER look directly at the sun!!! [ Show Transcript ] Announcer: Frostbite Theater presents... Cold Cuts! No baloney! Joanna and Steve: Just science! Joanna: Hi! I'm Joanna! Steve: And I'm Steve! Joanna: Today, we're going to measure the diameter of the son!! Steve: Awwww... But, not your son! This sun! Joanna: As you can see, we went a little overboard on the set-up. All you really need is a piece of aluminum foil and a piece of paper.

384

Frostbite Theater - Experiments You Can Try at Home! - How to Make a Cloud  

NLE Websites -- All DOE Office Websites (Extended Search)

Calculations and Results Calculations and Results Previous Video (Calculations and Results) Frostbite Theater Main Index Next Video (Squealing Dry Ice) Squealing Dry Ice How to Make a Cloud Chamber! A cloud chamber is a simple device that allows you to observe the decay of radioactive materials. Learn how to build your own! While it isn't difficult to build, it does require dry ice, isopropanol and a source of radiation, all of which are commercially available. [ Show Transcript ] Announcer: Frostbite Theater presents... Cold Cuts! No baloney! Joanna and Steve: Just science! Joanna: Hi! I'm Joanna! Steve: And I'm Steve! Joanna: Today, we're going to show you how to make a cloud chamber! Steve: Yay! Joanna: First, you're going to need a piece of black construction paper, a pair of scissors, some sticky-back felt, a Petri dish with a lid, some

385

Frostbite Theater - Experiments You Can Try at Home! - Measure the Speed of  

NLE Websites -- All DOE Office Websites (Extended Search)

It's Done - Anti-Gravity Water Trick! It's Done - Anti-Gravity Water Trick! Previous Video (How It's Done - Anti-Gravity Water Trick!) Frostbite Theater Main Index Next Video (Measure the Width of a Hair - With a Laser!) Measure the Width of a Hair - With a Laser! Measure the Speed of Light - With Chocolate! 'C' is for chocolate! 'c' is also the symbol used for the speed of light. Defined as being 299,792,458 meters per second in vacuum, you can take a crack at measuring the ultimate speed using your microwave, a ruler and a bar of chocolate! Yum! [ Show Transcript ] Announcer: Frostbite Theater presents... Cold Cuts! No baloney! Joanna and Steve: Just science! Joanna: Hi! I'm Joanna! Steve: And I'm Steve! Joanna: Today, we're going to show you how to measure the speed of light using your microwave, a ruler and... a bar of chocolate!

386

Auto-DR and Pre-cooling of Buildings at Tri-City Corporate Center  

E-Print Network (OSTI)

and Nonresidential Buildings, 1987, 1988, 1992, 1995, 1998,2006. The Application of Building Energy Simulation andTwo High-rise Commercial Buildings in Shanghai, Proceedings

Yin, Rongxin

2010-01-01T23:59:59.000Z

387

Japan wields industrial policy to try to become the world leader in environmental technology  

Science Conference Proceedings (OSTI)

From the Shinkansen, the famous Japanese bullet train, it is hard to see much besides the urban and industrial sprawl of twentieth-century Japan. As the rain speeds out of Tokyo, it passes miles of undistinguished houses on narrow, drab streets. Even the few remaining tilled gardens seem dispirited. Mt. Fuji rises out of this techno-industrial plain like a half-remembered woodcut of traditional Japan, the Japan of spring green rice fields, an bunraku puppets, and purple iris against century-old pines. At the right hour, even from the train, the sun seems to guild its peak. Of course, nobody who knows Japan would be surprised to learn that the government is seriously considered a proposal to build a four-story, 500-vehicle parking garage halfway up the slope.

Jubak, J.; D`Amico, M.

1993-12-31T23:59:59.000Z

388

Security Tools - A "Try Before You Buy" Web-Based Approach  

Science Conference Proceedings (OSTI)

... branch of the security tree, enter the user ... such details as: the depth of search within the file ... Additional keywords and taxonomy terms; Most and least ...

389

Auto-DR and Pre-cooling of Buildings at Tri-City Corporate Center  

E-Print Network (OSTI)

and Sila Kiliccote, Estimating Demand Response Load Impacts:support of the LBNL Demand Response Research Center pre-simulation tool the Demand Response Quick Assessment

Yin, Rongxin

2010-01-01T23:59:59.000Z

390

Auto-DR and Pre-cooling of Buildings at Tri-City Corporate Center  

E-Print Network (OSTI)

VE Southern California Edison Design & Engineering ServicesDR 06.22 Southern California Edison Design & Engineering17-22, 2008. Southern California Edison Design & Engineering

Yin, Rongxin

2010-01-01T23:59:59.000Z

391

To be more explicit on number 4) below, she wants to try to get...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

only the number of units necessary to meet PJM's directive and optimizing its use of Trona injection to minimize SO 2 emissions. In a June 2, 2006, letter order to Mirant, DOE...

392

Auto-DR and Pre-cooling of Buildings at Tri-City Corporate Center  

E-Print Network (OSTI)

is proportional to the monthly maximum demand. Customers canby decreasing the monthly maximum demand. Therefore, it isdistribution of daily maximum demand throughout the summer

Yin, Rongxin

2010-01-01T23:59:59.000Z

393

Unprecedented Scalability and Performance of the New NNSA Tri-Lab Linux Capacity Cluster 2  

Science Conference Proceedings (OSTI)

As one of the largest users of supercomputing resources in the world, capacity computing is a critical component in the NNSA's (National Nuclear Security Administration) Advanced Simulation and Computing (ASC) program. The latest acquisitions in this ... Keywords: Scientific Applications, High Performance Computing, Parallel Architectures.

M. Rajan, D. W. Doerfler, P. T. Lin, S. D. Hammond, R. F. Barrett, C. T. Vaughan

2012-11-01T23:59:59.000Z

394

Application Performance on the Tri-Lab Linux Capacity Cluster-TLCC  

Science Conference Proceedings (OSTI)

In a recent acquisition by DOE/NNSA several large capacity computing clusters called TLCC have been installed at the DOE labs: SNL, LANL and LLNL. TLCC architecture with ccNUMA, multi-socket, multi-core nodes, and InfiniBand interconnect, is representative ... Keywords: Application Scaling, Cray XT4, Parallel Performance, Processor Affinity, Red Storm, TLCC, numactl

Douglas Doerfler; Marcus Epperson; Jeff Ogden; Courtenay T. Vaughan; Mahesh Rajan

2010-04-01T23:59:59.000Z

395

Auto-DR and Pre-cooling of Buildings at Tri-City Corporate Center  

E-Print Network (OSTI)

sub-metering the electric usage of lighting, plug, and HVACactual energy usage of the lighting and plug loads withoutin energy usage for the lighting, plug and miscellaneous

Yin, Rongxin

2010-01-01T23:59:59.000Z

396

Neutron Diffraction Studies of the Tri-axial Stress Distribution in ...  

Science Conference Proceedings (OSTI)

Here neutron diffraction strain scanning, originally developed for residual stress measurements, is applied to the stress distribution in granular materials under a...

397

Students try out high-tech equipment at ASM Materials Camp |...  

National Nuclear Security Administration (NNSA)

including a precision cutoff saw, hot mounting press, specimen polisher, and scanning electron microscope. The week-long camp is hosted by Y-12, Oak Ridge National Laboratory, Tech...

398

Auto-DR and Pre-cooling of Buildings at Tri-City Corporate Center  

E-Print Network (OSTI)

buildings, including sub-metering the electric usage ofinternal loads without sub-metering. The winter data can becould be improved by sub-metering key HVAC equipment. Direct

Yin, Rongxin

2010-01-01T23:59:59.000Z

399

CHRIS CHEN: Okay, I think we're going to try and get started. ...  

Science Conference Proceedings (OSTI)

... For monitoring at the same time the force of contraction, impulse propagation gene expression and ... show that these contract against a load? ...

2012-10-03T23:59:59.000Z

400

In Sweden, as in many other coun-tries Ethanol is the most wide-  

E-Print Network (OSTI)

combined heat, power and wood biofuel pellets plant in the North of Sweden. The production of ethanol WOOD ENERGY N°7 37 ssfilter Drier Production of pellets Biogas Ethanol District PLANT To develop the technology for ethanol production from wood residues, some regional companies, five

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Auto-DR and Pre-cooling of Buildings at Tri-City Corporate Center  

E-Print Network (OSTI)

mass for load shifting and peak demand reduction has beento estimate potential peak demand reductions of various DRstrategies to reduce peak demand in California. The demand

Yin, Rongxin

2010-01-01T23:59:59.000Z

402

Auto-DR and Pre-cooling of Buildings at Tri-City Corporate Center  

E-Print Network (OSTI)

able to predict the load profiles of the buildings within aload schedules predicted the load profiles of the buildingstemp set up strategy load profile was much flatter than the

Yin, Rongxin

2010-01-01T23:59:59.000Z

403

Targeted Support Program Attracting outside businesses to the Tri-City region with free service  

E-Print Network (OSTI)

What it's all about Pacific Northwest National Laboratory's (PNNL) Targeted Support Program (TSP the potential newcomer three staff-hours of PNNL support for each permanent, full-time job brought is eligible for one staff-week of additional laboratory support annually under PNNL's Technology Assistance

404

Tri-Cities Research District A place to do business and thrive  

E-Print Network (OSTI)

Northwest National Laboratory (PNNL), the Port of Benton, and other economic development partners have of land surrounding the PNNL campus » Currently home to 80+ tenants that employ more than 8,000 people-mail: Gary.Spanner@pnnl.gov http://www.pnnl.gov/edo/opportunities/research_ district.stm November 2012 PNNL

405

EFFECTS OF triIODOTHYRONINE IN ALTERING THE RESPONSE OF KIDNEYS TO COBALT- 60 RADIATION  

SciTech Connect

The fear of inducing radiation nephritis restricts the amount of radiation delivered to retroperitonieal tumors. If this radiation injury could be modified, the therapist would then be less fearful of possibly inducing this often fatal complication. Since triiodothyronine has proved beneficial in reducing radiation injury of the skin and subcutaneous tissues, the effects of this compound were elvaluated following production of radiation injuiy in rabbit kidneys. Surprisingly, triiodothyronine did not favorably alter the reaction, but made it worse. The reason for this variance with the effects previously reported in skin is not certain. Tissue specificity or difference in vascularity may be important factors. The irradiated skin of the triiodothyroninetreated animals showed slightly less histologic alteration than the irradiated skin of the control animals. This tends to confirm the work of Glicksman and associates. (auth)

Caldwell, W.L.; Thomassen, R.W.; Bosch, A.

1963-10-01T23:59:59.000Z

406

Microsoft PowerPoint - Trying to Put Radiation Risk in Perspective...  

NLE Websites -- All DOE Office Websites (Extended Search)

a better understanding of a complicated technical question Final numbers for Fukushima are approximate and probably not known precisely yet. Other numbers related to doses...

407

Resonant Soft X-Ray Scattering of Tri-Block Copolymers  

NLE Websites -- All DOE Office Websites (Extended Search)

previous experiments have been few. Now, an international team from the United States, Korea, and Japan has succeeded in combining resonant soft x-ray scattering (RSoXS) at ALS...

408

Auto-DR and Pre-cooling of Buildings at Tri-City Corporate Center  

E-Print Network (OSTI)

predicted the actual electric usage throughout the summerincluding sub-metering the electric usage of lighting, plug,energy usage and predicting hourly building electric demand.

Yin, Rongxin

2010-01-01T23:59:59.000Z

409

TRIPP9837 Comment on Induced Pseudoscalar Coupling Constant by  

E-Print Network (OSTI)

In a recent preprint Cheon and Cheoun have derived from a chiral model an additional term, not usually appearing in the standard matrix element for radiative muon capture. Using that term they generate a large correction to the RMC spectrum which tends to resolve the problem caused by the too large value of gP found in the TRIUMF RMC experiment. In this comment we observe first that their extra term leads to an amplitude which is not gauge invariant and second that such a term should be present, in a gauge invariant way, in an earlier full chiral perturbation theory calculation, which however found negligible contributions from terms of this order. Typeset using REVTEX 1 A recent TRIUMF experiment [1] on radiative muon capture (RMC) on the proton found a value of the induced pseudoscalar coupling constant gP which was almost 1.5 times the value predicted by the Goldberger-Treiman relation. This experiment was analyzed using the standard approach [2] and in particular the explicit formalism of Beder and Fearing

Il-tong Cheon; Myung Ki Cheoun (nucl-th; Harold W. Fearing

1998-01-01T23:59:59.000Z

410

Tri-County Electric Coop, Inc (New Mexico) | Open Energy Information  

Open Energy Info (EERE)

New Mexico Utility Id 19160 References EIA Form EIA-861 Final Data File for 2010 - File220101 LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now This...

411

Microsoft Word - state_analysis_2013  

U.S. Energy Information Administration (EIA) Indexed Site

9 9 Table 5. Per capita energy-related carbon dioxide emissions by state (2000 - 2010) metric tons carbon dioxide per person Change 2000 to 2010 State 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 Percent Absolute Al a ba ma 31.5 29.6 30.6 30.6 31.0 31.1 31.3 31.5 29.8 25.4 28.1 -11.0% -3.5 Al a s ka 70.6 68.5 67.9 67.2 70.9 72.0 67.8 64.9 57.6 54.6 54.6 -22.6% -16.0 Ari zona 16.6 16.7 16.1 16.0 16.8 16.2 16.2 16.1 15.9 14.4 14.4 -13.7% -2.3 Arka ns a s 23.6 23.2 22.5 22.5 22.6 21.5 21.9 22.2 22.2 21.3 22.7 -3.7% -0.9 Ca li fornia 11.2 11.2 11.0 11.1 11.0 10.9 11.1 11.2 10.7 10.2 9.9 -11.5% -1.3 Colora do 19.6 20.9 20.2 19.8 20.3 20.5 20.3 20.5 19.8 18.7 18.9 -3.2% -0.6 Connecticut 12.5 12.1 11.6 12.2 12.8 12.6 11.7 11.6 10.9 10.4 10.5 -16.5% -2.1 Dela wa re 20.7 19.8 19.3 19.7 19.5 20.2 18.5 19.3 18.2 13.4 13.1 -36.4% -7.5 Dis tri ct of Columbi a

412

Courses of Instruction InstruCtIon  

E-Print Network (OSTI)

are not in- cluded. From the Stefan?Boltzmann law of blackbody radiation, the radiative energy loss can

Bolding, M. Chad

413

CT. L-2 United States Government  

Office of Legacy Management (LM)

dose of 11 mremyr above background, which is well below the Department of Energy (DOE) guideline of 100 mremyr for protection of the general public. The maximum exposure...

414

CT Standards Save Time and Money  

Science Conference Proceedings (OSTI)

... By having uniform test objects and performance criteria, manufacturers can better ... ray cabinet systems for carry-on bags, cargo/vehicle imaging and ...

2013-06-10T23:59:59.000Z

415

Exploiting SNOMED CT Concepts & Relationships for Clinical ...  

Science Conference Proceedings (OSTI)

... Information Retrieval 10, 2 (Jan. 2007), 173202. [6] Nguyen, A., Lawley, M., Hansen, D., Bowman, R., Clarke, B., Duhig, E., and Colquist, S ...

2013-02-12T23:59:59.000Z

416

Microsoft Word - Ct121R1.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

by a spray of water from the recycle water pond at an injection rate of 0.25 gal1000 acf of flue gas. Following the water spray, the flue gas is completely saturated with water...

417

CT-121_cover.p65  

NLE Websites -- All DOE Office Websites (Extended Search)

pond water at a liquid-to-gas ratio of 0.25 gallons (gal)1000 actual cubic feet (acf) of flue gas to prevent a wet-dry interface from occurring between the slurry and flue...

418

CT Clean Energy Communities | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

must make the Municipal Energy Efficiency Pledge and reduce municipal building energy consumption 20% from baseline levels by 2018. 2. Commit to the Municipal Clean,...

419

Optimization Online - Reconstruction of CT Images from ...  

E-Print Network (OSTI)

Jun 25, 2009... is one of the most popular diagnostic tools available to medical professionals. ... Citation: Siemens Corporate Research, September 2008.

420

172 Causation and din turn depends on Ct. Causal dependence is here intransitive: Ct  

E-Print Network (OSTI)

Rube Goldberg machine. Not that the chain must be foreseeable. You can kill someone no matter how good not. But the counterexamples get too contrived to be very per- suasive: imagine a lethal Rube Goldberg remarkable difference in circumstances would prevent his death. The same is true if you set a Rube Goldberg

Fitelson, Branden

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

This is page 321 Printer: Opaque this  

E-Print Network (OSTI)

of a mother filament is less than unity at steady state: nbr = dis/ dis+ depol 1, where dis is the filament dissociation debranching time constant, and depol is the depolymeriza- tion time constant. Early the scattering intensity peaks, and is roughly the larger of dis and depol. The fit parameters we obtain are 1

Oster, George

422

Semantic Patterns Steffen Staab, Michael Erdmann, Alexander Maedche  

E-Print Network (OSTI)

]), or systems that include temporal reasoning (e.g., for corporate history analysis [4]). 2 #12;the the claims we make with a case study considering as target representation systems OIL/FaCT [14], currently History When one tries to reuse semantics across boundaries stemming from the usage of different

Staab, Steffen

423

Engineering Ontologies using Semantic Patterns Steffen Staab, Michael Erdmann Alexander Maedche  

E-Print Network (OSTI)

for insurance help desk [27]), or systems that in- clude temporal reasoning (e.g., for corporate history representation systems OIL/FaCT [14], currently the most prominent semantic layer on top of RDF(S), and SiLRi [13 of its History When one tries to reuse semantics across boundaries stemming from the usage of different

Staab, Steffen

424

White Paper on Ion Beam Transport for ICF: Issues, R&D Need, and Tri-Lab Plans  

E-Print Network (OSTI)

LBNL/PUP-928 HI FAN 1484 White Paper on Ion Beam Transportbegin preparation of this white paper on ion beam transport.each Laboratory This white paper is a result of that meeting

Olson, C.; Lee, E.; Langdon, B.

2005-01-01T23:59:59.000Z

425

REVIEW AR TICLE O p tic a l m a g n e to m e try  

R ecent breakthroughs in laser coolin g an d trappin g have open ed n ew avenues for precision m easurem ents usin g lon g-lived, n ear-station ary

426

Influence of temperature on the extraction of Pu(IV) by tri-n-butyl phosphate from acidic nitrate solutions.  

E-Print Network (OSTI)

??The goal of Advanced Fuel Cycle Initiative program is to efficiently separate and recover actinides in attempts to reprocess irradiated nuclear fuel and reduce the (more)

[No author

2010-01-01T23:59:59.000Z

427

Solar Resource & Meteorological Assessment Project (SOLRMAP): Rotating Shadowband Radiometer (RSR); Escalante Tri-State - Prewitt, New Mexico (Data)  

DOE Data Explorer (OSTI)

The U.S. Department of Energy's National Renewable Energy Laboratory collaborates with the solar industry to establish high quality solar and meteorological measurements. This Solar Resource and Meteorological Assessment Project (SOLRMAP) provides high quality measurements to support deployment of power projects in the United States. The no-funds-exchanged collaboration brings NREL solar resource assessment expertise together with industry needs for measurements. The end result is high quality data sets to support the financing, design, and monitoring of large scale solar power projects for industry in addition to research-quality data for NREL model development. NREL provides consultation for instrumentation and station deployment, along with instrument calibrations, data acquisition, quality assessment, data distribution, and summary reports. Industry participants provide equipment, infrastructure, and station maintenance.

Wilcox, S.; Andreas, A.

428

Synthesis, Structure, and Reactivity of bis(1,2,4-tri-t-butylcyclopentadienyl) Complexes of Cerium  

E-Print Network (OSTI)

containing resonances due to propane, the metallacycle, andconversion to Cp' 2 CeH and propane is achieved after onecorresponding to those of propane-d n . While it appears

Werkema, Evan L.

2005-01-01T23:59:59.000Z

429

Catalytic Tri-reforming of Biomass-Derived Syngas to Produce Desired H2:CO Ratios for Fuel Applications.  

E-Print Network (OSTI)

??This study focuses on upgrading biomass derived syngas for the synthesis of liquid fuels using Fischer-Tropsch synthesis (FTS). The process includes novel gasification of biomass (more)

Walker, Devin Mason

2012-01-01T23:59:59.000Z

430

Solar Resource & Meteorological Assessment Project (SOLRMAP): Rotating Shadowband Radiometer (RSR); Escalante Tri-State - Prewitt, New Mexico (Data)  

DOE Green Energy (OSTI)

The U.S. Department of Energy's National Renewable Energy Laboratory collaborates with the solar industry to establish high quality solar and meteorological measurements. This Solar Resource and Meteorological Assessment Project (SOLRMAP) provides high quality measurements to support deployment of power projects in the United States. The no-funds-exchanged collaboration brings NREL solar resource assessment expertise together with industry needs for measurements. The end result is high quality data sets to support the financing, design, and monitoring of large scale solar power projects for industry in addition to research-quality data for NREL model development. NREL provides consultation for instrumentation and station deployment, along with instrument calibrations, data acquisition, quality assessment, data distribution, and summary reports. Industry participants provide equipment, infrastructure, and station maintenance.

Wilcox, S.; Andreas, A.

2012-11-03T23:59:59.000Z

431

B O N N E V I L L E P O W E R A D M I N I S T R A T I O N W A S H I N G T 0 N W I L D L I F E M I T I G AT I 0 N P R 0 J E CT S  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

E E P O W E R A D M I N I S T R A T I O N W A S H I N G T 0 N W I L D L I F E M I T I G AT I 0 N P R 0 J E CT S F I N A L P R 0 G RAM M AT1 C EN V I RO N M ENTAL ASS ESS M E NT ( D 0 E l EA- 1 0 9 6 ) AND FINDING OF NO SIGNIFICANT IMPACT Columbia Columbia Plateau Acquis~~onllmpmvement Project activities could occur in Okanogan. Dougla G m t , Adams andlor Fmklrn Countres. In cooperation with: Washington Department of Fish and Wildlife DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced f r o m the best available original document. U.S. DEPARTMENT OF ENERGY Bonneville Power Administration 1 Finding of No SignZcant Impact for Washington Wildlife Mitigation Projects SUMMARY BPA proposes to fund the portion of the Washington Wildlife Mitigation

432

 

NLE Websites -- All DOE Office Websites (Extended Search)

organization meeting for non-oscillations group organization meeting for non-oscillations group 2PM on Thursday, October 7th, 1999 NEWS:Eric Hawker (hawker@fnal.gov) is the contact person for the non-oscillations group Attendance: Heidi Schellman Fritz DeJongh Eric Hawker Jae Yu (after 3) Debbie Harris (after 3) Many people could not attend due to the time chosen. Not able to attend and asked for different meeting time. Jorge Morfin Kevin McFarland Ray Stefanski We also found that several people who had expressed interest in the group were not on the mailing list. We're trying to rectify this. We first discussed whether exotics and normal DIS should split into two groups. The discussions were so interesting we probably won't split for now. General Work plan The non-oscillation sub group of the neutrino factory study will be

433

Western Greenbrier Co-Production Demonstration Project  

NLE Websites -- All DOE Office Websites (Extended Search)

contacts contacts Brad tomer Director Office of Major Demonstrations National Energy Technology Laboratory 3610 Collins Ferry Road P.O. Box 880 Morgantown, WV 26507-0880 304-285-4692 brad.tomer@netl.doe.gov nelson Rekos Project Manager National Energy Technology Laboratory 3610 Collins Ferry Road P.O. Box 880 Morgantown, WV 26507-0880 304-285-4066 nelson.rekos@netl.doe.gov PaRtIcIPant Western Greenbrier Co-Generation, LLC Lewisburg, WV Western Greenbrier Co-ProduCtion demonstration ProjeCt (disContinued) Project Description The Western Greenbrier Co-Production (WGC) project will generate about 100 megawatts of electricity and commercial quantities of salable ash by-products by burning waste coal presently contained in numerous coal refuse dumps in the vicinity of the plant. These refuse dumps, created by coal cleaning operations over

434

The Simulation Intranet Architecture  

Science Conference Proceedings (OSTI)

The Simdarion Infranet (S1) is a term which is being used to dcscribc one element of a multidisciplinary distributed and distance computing initiative known as DisCom2 at Sandia National Laboratory (http ct al. 1998). The Simulation Intranet is an architecture for satisfying Sandia's long term goal of providing an end- to-end set of scrviccs for high fidelity full physics simu- lations in a high performance, distributed, and distance computing environment. The Intranet Architecture group was formed to apply current distributed object technologies to this problcm. For the hardware architec- tures and software models involved with the current simulation process, a CORBA-based architecture is best suited to meet Sandia's needs. This paper presents the initial desi-a and implementation of this Intranct based on a three-tier Network Computing Architecture(NCA). The major parts of the architecture include: the Web Cli- ent, the Business Objects, and Data Persistence.

Holmes, V.P.; Linebarger, J.M.; Miller, D.J.; Vandewart, R.L.

1998-12-02T23:59:59.000Z

435

http://www.chicagotribune.com/entertainment/ct-ae-0805-borrelli  

NLE Websites -- All DOE Office Websites (Extended Search)

who (amazingly) kept the secret behind the Manhattan Project, which created the atomic bomb dropped on Hiroshima 67 years ago Monday. For instance, they could talk about the...

436

VERDiCT: Viscosity Enhancers Reducing Diffusion in ...  

Science Conference Proceedings (OSTI)

... These mixture modifications, however, also typically contribute to ... 5 the three largest molecules (cellulose ether, xanthum ... for an ongoing study in a ...

437

District cooling and heating development in Stamford, CT. Final report  

SciTech Connect

This report summarizes the development options for introducing district cooling and heating in downtown Stamford, Connecticut. A district energy system as defined for the Stamford project is the production of chilled and hot water at a central energy plant, and its distribution underground to participating building in the vicinity. The objective of the study was to investigate implementation of a district energy system in conjunction with cogeneration as a means to encourage energy conservation and provide the city with an economic development tool. Analysis of the system configuration focused on selecting an arrangement which offered a realistic opportunity for implementation. Three main alternatives were investigated: (1) construction of an 82 MW cogeneration plant and a district heating and cooling system to serve downtown buildings, (2) construction of a small (4 MW) in-fence cogeneration plant combined with cooling and heating, and (3) construction of a district cooling and heating plant to supply selected buildings. Option (1) was determined to be unfeasible at this time due to low electricity prices. The analysis demonstrated that alternatives (2) and (3) were feasible. A number of recommendations are made for detailed cost estimates and ownership, leasing, and financial issues. 12 figs., 10 tabs.

1994-12-01T23:59:59.000Z

438

Generators in Combustion Turbine (CT) Applications: Failure Mechanisms  

Science Conference Proceedings (OSTI)

As combustion turbines (CTs) come into wider and wider use to provide peaking power and supplement intermittent renewable resources, operating experience indicates that competitive pressures and reduced design margins have resulted in some generic problems that affect the reliability of generators and limit their life expectancy. While some users have entered in long-term service agreements with original equipment manufacturers (OEMs) to look after the predictive and corrective maintenance of their ...

2013-11-15T23:59:59.000Z

439

COMBUSTION TURBINE (CT) HOT SECTION COATING LIFE MANAGEMENT  

Science Conference Proceedings (OSTI)

The integrity of coatings used in hot section components of combustion turbine is crucial to the reliability of the buckets. This project was initiated in recognition of the need for predicting the life of coatings analytically, and non destructively; correspondingly, three principal tasks were established. Task 1, with the objective of analytically developing stress, strain and temperature distributions in the bucket and thereby predicting thermal fatigue (TMF) damage for various operating conditions; Task 2 with the objective of developing eddy current techniques to measure both TMF damage and general degradation of coatings and, Task 3, with the objective of developing mechanism based algorithms. This report is a record of the progress to date on these 3 key tasks. Two supporting tasks relating to field validation (Task 4) and economic analysis (Task 5) have not yet been initiated.

R. Viswanathan; K. Krzywosz; S. Cheruvu; E. Wan

2002-08-09T23:59:59.000Z

440

Solar heating system installed at Stamford, CT. Final report  

DOE Green Energy (OSTI)

Information is provided on the solar heating system installed at the Lutz-Sotire Partnership Executive East Office Building, Stamford, Connecticut. The information consists of description of system and components, operation and maintenance manual, as-built drawings and manufacturer's component data. The solar system was designed to provide approximately 50 percent of the heating requirements. The solar facility has 2,561 sq. ft. of liquid flat plate collectors and a 6000 gallon, stone lined, well-insulated storage tank. Freeze protection is provided by a 50 percent glycol/water mixture in the collector loop. From the storage tank, solar heated water is fed into the building's distributed heat pump loop via a modulating three-way valve. If the storage tank temperature drops below 80/sup 0/F, the building loop may be supplied from the existing electrical hot water boilers. The Executive East Office Building is of moderate size, 25,000 sq. ft. of heated space in 2 1/2 stories. The solar system makes available for other users up to 150 KVA of existing electrical generating capacity.

Not Available

1979-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "dis tri ct" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.