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1

Hugh Outhred  

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

Hugh Outhred Assoc. Prof. of Electrical Engineering Centre for Photovoltaic Engineering University of New South Wales, Sydney, Australia Hugh Outhred is in the School of Electrical...

2

Hugh Chen  

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

Yu-Han (Hugh) Chen is the Director of Program Analysis and Evaluation (PA&E) within the Office of the Chief Financial Officer (CFO) at the Department of Energy (DOE). Prior to his...

3

Hugh Outhred  

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

Hugh Outhred Hugh Outhred Assoc. Prof. of Electrical Engineering Centre for Photovoltaic Engineering University of New South Wales, Sydney, Australia This speaker was a visiting speaker who delivered a talk or talks on the date(s) shown at the links below. This speaker is not otherwise associated with Lawrence Berkeley National Laboratory, unless specifically identified as a Berkeley Lab staff member. Hugh Outhred is in the School of Electrical Engineering & Telecommunications at the University of New South Wales, Sydney, Australia. He is also a member of the National Electricity Tribunal (a quasi-judicial appeal body associated with Australia's National Electricity Market). His research interests are in electricity industry restructuring and sustainability.Expertise: electricity industry restructuring and

4

Hugh Chen | Department of Energy  

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

Hugh Chen Hugh Chen About Us Hugh Chen - Deputy Director for Finance, Incentives, and Program Analysis Hugh Chen Hugh Chen is the Deputy Director for Finance, Incentives, and Program Analysis within the Office of Energy Policy and Systems Analysis (EPSA) at the U.S. Department of Energy. Within EPSA, Hugh leads an office that provides independent analysis on energy-related markets, policies, and investments that support the nation's energy goals. Prior to joining EPSA, Hugh was the Director of Program Analysis and Evaluation (PA&E) within the Office of the Chief Financial Officer (CFO). At PA&E, Hugh was responsible for goals, performance, and investment decision analysis across DOE's efforts in clean energy, national security, and basic research. Prior to DOE, Hugh spent five years in the Pentagon as a Senior Analyst

5

Solar for Mining Hugh Rudnick  

E-Print Network (OSTI)

Solar for Mining Hugh Rudnick Professor Pontificia Universidad Católica de Chile #12;Solar Energy in Mining · Solar energy is becoming affordable · Attractive potential use for mining purposes · Must solve the storage requirement to increase its participation worldwide #12;Solar Energy in Mining · Electrical Energy

Catholic University of Chile (Universidad Católica de Chile)

6

FIA-12-0010 - In the Matter of Hughes Socol Piers Resnick DYM...  

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

10 - In the Matter of Hughes Socol Piers Resnick DYM, Ltd. FIA-12-0010 - In the Matter of Hughes Socol Piers Resnick DYM, Ltd. Hughes Socol Piers Resnick DYM, Ltd. (Hughes Socol)...

7

The four `R's of energy security1 Larry Hughes  

E-Print Network (OSTI)

ERG/200902 The four `R's of energy security1 Larry Hughes Energy Research Group Department A slightly modified version of this paper was printed in Energy Policy, for copies, please visit http://dx.doi.org/10.1016/j.enpol.2009.02.038 #12;The four `R's of energy security Larry Hughes Energy Research Group

Hughes, Larry

8

STATEMENT OF CONSIDERATIONS REQUES'f BY BAKER HUGHES OILFIELD OPERATIONS, INC. ('"BAKER HUGHES")  

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

REQUES'f BY BAKER HUGHES OILFIELD OPERATIONS, INC. ('"BAKER HUGHES") REQUES'f BY BAKER HUGHES OILFIELD OPERATIONS, INC. ('"BAKER HUGHES") FOR AN ADVANCE WAIVER OF PATENT RfGHTS UNDER DOE AWARD NO. DE- EE0005505 ; W(A) 2012-013 Baker Hughes has requested a waiver of patent ri ghts of the United States of Americ a for all s ul~ject inventions arising from its participation tmder the above referenced award entitled ·'D irectional Measurement- Wh ile-Drilling System for Geothermal Applications." The purpose of the av,rard is to develop a reliable Directional Measurement-While·· Drill ing (MWD) System for the creation of Enhanced Geothermal Systems (EGS). The sys tem to be developed under this award is a probe-based MWD tool for directional drilling that is alternator or battery povvcred, contains a navigation package capable of measuring inclinati

9

Hughes Power & Light Co | Open Energy Information  

Open Energy Info (EERE)

Hughes Power & Light Co Hughes Power & Light Co Jump to: navigation, search Name Hughes Power & Light Co Place Alaska Utility Id 9000 Utility Location Yes Ownership I NERC Location AK Operates Generating Plant Yes Activity Generation 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 No rate schedules available. Average Rates Residential: $0.7200/kWh Commercial: $0.7550/kWh References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a" Retrieved from "http://en.openei.org/w/index.php?title=Hughes_Power_%26_Light_Co&oldid=41084

10

Comments of Hughes Network Systems, LLC and Inmarsat Inc. | Department of  

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

Hughes Network Systems, LLC and Inmarsat Inc. Hughes Network Systems, LLC and Inmarsat Inc. Comments of Hughes Network Systems, LLC and Inmarsat Inc. Hughes Network Systems, LLC ("Hughes") and Inmarsat Inc. ("Inmarsat") hereby submit these comments in response to the Department of Energy's Request for Information ("RFI") in the above-referenced proceeding. Hughes and Inmarsat are global leaders in providing satellite networks and services and satellite services, respectively. Hughes and Inmarsat, both global satellite communications leaders, have a long-standing commercial relationship and have worked together in various roles on a variety of satellite communications projects over many years, including in the area of Smart Grid projects. The companies submit these joint comments to explain

11

Hughes_DPP2007_slide01-09.pdf  

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

H-mode performance and pedestal H-mode performance and pedestal studies with enhanced particle control on Alcator C-Mod J.W. Hughes, B. LaBombard, M. Greenwald, A. Hubbard, B. Lipschultz, K. Marr, R. McDermott, M. Reinke, J.L. Terry MIT Plasma Science and Fusion Center American Physical Society 49th Annual Meeting of the Division of Plasma Physics Orlando, FL 14 November 2007 J.W. Hughes et al. "H-mode performance and pedestal studies with enhanced particle control on Alcator C-Mod" 49th APS-DPP, Orlando FL, 14 November 2007 Slide x of 9 Goal: Understand influences of particle control on H-mode behavior 2 Density control desirable in H-mode - Mitigate unwanted density rises that deteriorate confinement - Extend operation to lower collisionality for studies of ELMs and core density peaking

12

The Challenge of Greening Energy Systems1 Alain Joseph and Larry Hughes  

E-Print Network (OSTI)

ERG2006/11 The Challenge of Greening Energy Systems1 Alain Joseph and Larry Hughes Energy Research at the second International Green Energy Conference (IGEC) held at the University of Ontario Institute of Technology in June 2006 #12;Joseph and Hughes: The Challenge of Greening Energy Systems 1 Abstract Human

Hughes, Larry

13

Microsoft Word - Hughes + ISAT DOE NBP Smart Grid RFI comments 7-12-10 _clean_.docx  

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

D.C. 20585 D.C. 20585 ____________________________________ In the Matter of ) ) Implementing the National Broadband ) Plan by Studying the Communications ) Docket ID: DOE-HQ-2009-0003-0819 Requirements of Electric Utilities to ) Inform Federal Smart Grid Policy ) ) Request for Information ) ____________________________________) COMMENTS OF HUGHES NETWORK SYSTEMS, LLC AND INMARSAT INC. Hughes Network Systems, LLC ("Hughes") and Inmarsat Inc. ("Inmarsat") hereby submit these comments in response to the Department of Energy's Request for Information ("RFI") in the above-referenced proceeding. 1 Hughes and Inmarsat are global leaders in providing satellite networks and services and satellite services, respectively. Hughes and Inmarsat, both global

14

Ion-Drop Interaction During Drop Evaporation  

Science Conference Proceedings (OSTI)

As a basic experiment in warm cloud electrification, evaporating large drops were studied as they floated in an ion-rich environment in a vertical wind tunnel. The drops were found to acquire a positive charge during their evaporation, a result ...

Tsutomu Takahashi; Tatsuo Endoh

1983-02-01T23:59:59.000Z

15

FIA-13-0057 - In the Matter of Shawn R. Hughes | Department of Energy  

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

FIA-13-0057 - In the Matter of Shawn R. Hughes FIA-13-0057 - In the Matter of Shawn R. Hughes FIA-13-0057 - In the Matter of Shawn R. Hughes On September 10, 2013, the Office of Hearings and Appeals (OHA) issued a decision denying an appeal (Appeal) from a Freedom of Information Act (FOIA) determination issued by the Department of Energy's Office of Scientific and Technical Information (OSTI). The Appellant, Shawn R. Hughes, contested the adequacy of OSTI's search of records, and also argued that the Office of Information Resources (OIR) should have transferred his FOIA Request to the Lawrence Livermore National Laboratory (LLNL) and Sandia National Laboratory (SNL) to conduct a search for records. After the Appeal was filed, OIR informed OHA that it transferred the Appellant's FOIA Request to the National Nuclear Security

16

FIA-13-0057 - In the Matter of Shawn R. Hughes | Department of Energy  

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

7 - In the Matter of Shawn R. Hughes 7 - In the Matter of Shawn R. Hughes FIA-13-0057 - In the Matter of Shawn R. Hughes On September 10, 2013, the Office of Hearings and Appeals (OHA) issued a decision denying an appeal (Appeal) from a Freedom of Information Act (FOIA) determination issued by the Department of Energy's Office of Scientific and Technical Information (OSTI). The Appellant, Shawn R. Hughes, contested the adequacy of OSTI's search of records, and also argued that the Office of Information Resources (OIR) should have transferred his FOIA Request to the Lawrence Livermore National Laboratory (LLNL) and Sandia National Laboratory (SNL) to conduct a search for records. After the Appeal was filed, OIR informed OHA that it transferred the Appellant's FOIA Request to the National Nuclear Security

17

STATEMENT OF CONSIDERATIONS REQUEST BY BAKER HUGHES INTEQ FOR AN ADVANCE WAIVER OF  

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

BAKER HUGHES INTEQ FOR AN ADVANCE WAIVER OF BAKER HUGHES INTEQ FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN INVENTION RIGHTS UNDER DOE COOPERATIVE AGREEMENT NO. DE-FC26-04NT15473: W(A)-04-068, CH-1246 The Petitioner, Baker Hughes INTEQ (BHI) was awarded this cooperative agreement for the performance of work entitled, "Microhole Smart Steering and Logging While Drilling." The purpose of the cooperative agreement is to develop a modular and effective Coiled Tubing Drilling (CTD) system that allows operators to produce existing oil reservoirs, mainly on the North American continent, in a much more effective way than is possible today. The scope of work will include a project that will develop a rib steering device in conjunction with an integral high-performance downhole motor, and a resistivity sensor for formation evaluation.

18

Modelling the convective flow in solar thermal receivers K.C. Yeh; G. Hughes & K. Lovegrove  

E-Print Network (OSTI)

Modelling the convective flow in solar thermal receivers K.C. Yeh; G. Hughes & K. Lovegrove density differences produced using the varying salt concentrations in a water tank. The flow to visualise #12;Modelling the Convective Flow in Solar Thermal Receivers Yeh the flow outside the cavity mouth

19

ICM, Incorporated  

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

ICM, Incorporated ICM, Incorporated Corporate Headquarters: Colwich, KS Proposed Facility Location: St. Joseph, MO Description: ICM will construct and operate a pilot integrated biorefinery using a proven biochemical platform pretreatment technology enhanced by energy recycling and process flow innovations to refine terrestrial lignocellulosic biomass into fuel ethanol. The proposed process furthers the cost effective production of ethanol from lignocellulosic biomass. CEO or Equivalent: Dave Vander Griend, President and CEO Participants: AGCO Engineering; NCAUR-ARS-Peoria; CERES, Inc; Edenspace Systems Corporation; Novozymes North America, Inc; South Dakota State University; Sun Ethanol, Inc.; U.S. Department of Energy's National Renewable Energy Lab; and VeraSun Energy

20

STATEMENT OF CONSIDERATIONS REQUEST BY BAKER HUGHES INTEQ FOR AN ADVANCE WAIVER OF DOMESTIC  

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

t t 0 STATEMENT OF CONSIDERATIONS REQUEST BY BAKER HUGHES INTEQ FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN INVENTION RIGHTS UNDER DOE COOPERATIVE AGREEMENT NO. DE-FC26-05NT15488; W(A)-05-016, CH-1279 The Petitioner, Baker Hughes INTEQ (BHI) was awarded this cooperative agreement for the performance of work entitled, "Microhole Wireless Steering and Logging While Drilling System." The purpose of the cooperative agreement is to develop a modular and effective Coiled Tubing Drilling (CTD) system that allows operators to produce existing oil reservoirs, mainly on the North American continent, in a much more effective way than is possible today. This will be accomplished by providing accurate and precise real-time geosteering even under conditions where the rig surface gear and equipment need to be minimized for cost

Note: This page contains sample records for the topic "hughes incorporated dropped" 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

First drop dissimilarity in drop-on-demand inkjet devices  

SciTech Connect

As inkjet printing technology is increasingly applied in a broader array of applications, careful characterization of its method of use is critical due to its inherent sensitivity. A common operational mode in inkjet technology known as drop-on-demand ejection is used as a way to deliver a controlled quantity of material to a precise location on a target. This method of operation allows ejection of individual or a sequence (burst) of drops based on a timed trigger event. This work presents an examination of sequences of drops as they are ejected, indicating a number of phenomena that must be considered when designing a drop-on-demand inkjet system. These phenomena appear to be driven by differences between the first ejected drop in a burst and those that follow it and result in a break-down of the linear relationship expected between driving amplitude and drop mass. This first drop, as quantified by high-speed videography and subsequent image analysis, can be different in morphology, trajectory, velocity, and volume from subsequent drops within a burst. These findings were confirmed orthogonally by both volume and mass measurement techniques which allowed quantitation down to single drops.

Famili, Amin; Palkar, Saurabh A.; Baldy, William J. Jr. [Cordis Corporation, a Johnson and Johnson Company, Welsh and McKean Roads, Spring House, Pennsylvania 19477 (United States)

2011-01-15T23:59:59.000Z

22

Diesel prices see slight drop  

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

Diesel prices see slight drop The U.S. average retail price for on-highway diesel fuel fell slightly to 3.91 a gallon on Monday. That's down 6-tenths of a penny from a week ago,...

23

Drag and drop display & builder  

SciTech Connect

The Drag and Drop (DnD) Display & Builder is a component-oriented system that allows users to create visual representations of data received from data acquisition systems. It is an upgrade of a Synoptic Display mechanism used at Fermilab since 2002. Components can be graphically arranged and logically interconnected in the web-startable Project Builder. Projects can be either lightweight AJAX- and SVG-based web pages, or they can be started as Java applications. The new version was initiated as a response to discussions between the LHC Controls Group and Fermilab.

Bolshakov, Timofei B.; Petrov, Andrey D.; /Fermilab

2007-12-01T23:59:59.000Z

24

ii. articles of incorporation  

Science Conference Proceedings (OSTI)

led in t. 1'. .l'tment of in the '. 84730357. Secretary of the Commonwealth. ARTICLES OF INCORPORATION. OF . ms PIEI'ALHIRGICAL SOCIETY, INC.

25

Magnetically focused liquid drop radiator  

DOE Patents (OSTI)

A magnetically focused liquid drop radiator for application in rejecting energy from a spacecraft, characterized by a magnetizable liquid or slurry disposed in operative relationship within the liquid droplet generator and its fluid delivery system, in combination with magnetic means disposed in operative relationship around a liquid droplet collector of the LDR. The magnetic means are effective to focus streams of droplets directed from the generator toward the collector, thereby to assure that essentially all of the droplets are directed into the collector, even though some of the streams may be misdirected as they leave the generator. The magnetic focusing means is also effective to suppress splashing of liquid when the droplets impinge on the collector.

Botts, T.E.; Powell, J.R.; Lenard, R.

1984-12-10T23:59:59.000Z

26

Colloidal Shape Effects in Evaporating Drops  

E-Print Network (OSTI)

We explore the influence of particle shape on the behavior of evaporating drops. A first set of experiments discovered that particle shape modifies particle deposition after drying. For sessile drops, spheres are deposited in a ring-like stain, while ellipsoids are deposited uniformly. Experiments elucidate the kinetics of ellipsoids and spheres at the drop's edge. A second set of experiments examined evaporating drops confined between glass plates. In this case, colloidal particles coat the ribbon-like air-water interface, forming colloidal monolayer membranes (CMMs). As particle anisotropy increases, CMM bending rigidity was found to increase, which in turn introduces a new mechanism that produces a uniform deposition of ellipsoids and a heterogeneous deposition of spheres after drying. A final set of experiments investigates the effect of surfactants in evaporating drops. The radially outward flow that pushes particles to the drop's edge also pushes surfactants to the drop's edge, which leads to a radially inward flow on the drop surface. The presence of radially outward flows in the bulk fluid and radially inward flows at the drop surface creates a Marangoni eddy, among other effects, which also modifies deposition after drying.

Peter J. Yunker; Tim Still; A. G. Yodh

2013-08-08T23:59:59.000Z

27

Improved Drop Generators for Calibration of Drop Spectrometers and Use in Laboratory Cloud Physics Experiments  

Science Conference Proceedings (OSTI)

Drop generators have been developed at NCAR based on the wire egression principle. They are outstanding in their flexibility and simplicity. Drops ranging in diameter from 6 ?m to 1 mm have been generated with one model. Application of the ...

Theodore W. Cannon; Walter W. Grotewold

1980-07-01T23:59:59.000Z

28

Measured Collection Efficiencies for Cloud Drops  

Science Conference Proceedings (OSTI)

The collection efficiency has been measured for 15 size pairs of relatively uncharged drops in over 400 experimental runs. The results indicate that collection efficiencies fall in a narrow range of 0.60 to 0.70 even though the collector drop was ...

K. V. Beard; Harry T. Ochs III

1983-01-01T23:59:59.000Z

29

The Shape of Averaged Drop Size Distributions  

Science Conference Proceedings (OSTI)

The shape of averaged drop size distributions (DSD) is studied from a large sample of data (892 h) collected at several sites of various latitudes. The results show that neither the hypothesis of an exponential distribution to represent rainfall ...

Henri Sauvageot; Jean-Pierre Lacaux

1995-04-01T23:59:59.000Z

30

Lifetime of oil drops pressed by buoyancy against a planar interface: Large drops  

E-Print Network (OSTI)

In a previous report [10] it was shown that emulsion stability simulations are able to reproduce the lifetime of micrometer-size drops of hexadecane pressed by buoyancy against a planar water-hexadecane interface. It was confirmed that small drops (rioil stabilized with bovine serum albumin. The potential obtained is then employed to study the lifetime of deformable drops in the range 10 \\leq ri \\leq 1000 {\\mu}m. It is established that the average lifetime of these drops can be adequately replicated using the model of truncated spheres. However, the results depend sensibly on the expressions of the initial distance of deformation and the maximum film radius used in the calculations. The set of equations adequate for large drops is not satisfactory for medium-size drops (10 \\leq ri \\leq 100 {\\mu}m), and vice versa. In the case of large particles, the increase in the interfacial area as a consequence of the deformation of the drops generates a very large repulsive barrier which opposes coalescence. Nevertheless, the buoyancy force prevails. As a consequence, it is the hydrodynamic tensor of the drops which determine the characteristic behavior of the lifetime as a function of the particle size. While the average values of the coalescence time of the drops can be justified by the mechanism of film thinning, the scattering of the experimental data of large drops cannot be rationalized using the methodology previously described. A possible explanation of this phenomenon required elaborate simulations which combine deformable drops, capillary waves, repulsive interaction forces, and a time-dependent surfactant adsorption.

Clara Rojas; Mximo Garca-Sucre; Germn Urbina-Villalba

2010-12-15T23:59:59.000Z

31

Alternative Fuels Data Center: Drop-In Biofuels  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Drop-In Biofuels to Drop-In Biofuels to someone by E-mail Share Alternative Fuels Data Center: Drop-In Biofuels on Facebook Tweet about Alternative Fuels Data Center: Drop-In Biofuels on Twitter Bookmark Alternative Fuels Data Center: Drop-In Biofuels on Google Bookmark Alternative Fuels Data Center: Drop-In Biofuels on Delicious Rank Alternative Fuels Data Center: Drop-In Biofuels on Digg Find More places to share Alternative Fuels Data Center: Drop-In Biofuels on AddThis.com... More in this section... Biobutanol Drop-In Biofuels Methanol P-Series Renewable Natural Gas xTL Fuels Drop-In Biofuels Drop-in biofuels are hydrocarbon fuels substantially similar to gasoline, diesel, or jet fuels. These fuels can be made from a variety of biomass feedstocks including crop residues, woody biomass, dedicated energy crops,

32

RADIATION APPLICATIONS INCORPORATED  

Office of Legacy Management (LM)

. <' ," . . * . RADIATION APPLICATIONS INCORPORATED . 370 Lexl.ngton Avenue New York 17# New York jq.5' L- Contract No. A T (30-l)-2093 with the United States Atom ic Energy Commission F O A M SEPARATION Progress Report for March, 1959 Abstract Appreciable cesium enrichment in the foam has been obtained using the system sodium tetraphenyl boron-Geigy reagent. Enrichment ratios varied from 1.5 to 3.5 depending upon operating conditions. The en- richment appears to depend on the ratio of the sodium tetraphenyl boron to Geigy reagent rather than on the absolute values of the indi- vidual concentrations. Further experiments are being conducted to verify and extend the range of results. Continuous countercurrent column operation has been continued.

33

DISTRIBUTED AMPLIFIER INCORPORATING FEEDBACK  

DOE Patents (OSTI)

An improved distributed amplifier system employing feedback for stabilization is presented. In accordance with the disclosed invention, a signal to be amplified is applled to one end of a suitable terminated grid transmission line. At intervals along the transmission line, the signal is fed to stable, resistance-capacitance coupled amplifiers incorporating feedback loops therein. The output current from each amplifier is passed through an additional tube to minimize the electrostatic capacitance between the tube elements of the last stage of the amplifier, and fed to appropriate points on an output transmission line, similar to the grid line, but terminated at the opposite (input) end. The output taken from the unterminated end of the plate transmission line is proportional to the input voltage impressed upon the grid line.

Bell, P.R. Jr.

1958-10-21T23:59:59.000Z

34

A kinematic wave theory of capacity drop  

E-Print Network (OSTI)

Capacity drop at active bottlenecks is one of the most puzzling traffic phenomena, but a thorough understanding is practically important for designing variable speed limit and ramp metering strategies. In this study, we attempt to develop a simple model of capacity drop within the framework of kinematic wave theory based on the observation that capacity drop occurs when an upstream queue forms at an active bottleneck. In addition, we assume that the fundamental diagrams are continuous in steady states. This assumption is consistent with observations and can avoid unrealistic infinite characteristic wave speeds in discontinuous fundamental diagrams. A core component of the new model is an entropy condition defined by a discontinuous boundary flux function. For a lane-drop area, we demonstrate that the model is well-defined, and its Riemann problem can be uniquely solved. We theoretically discuss traffic stability with this model subject to perturbations in density, upstream demand, and downstream supply. We clarify that discontinuous flow-density relations, or so-called "discontinuous" fundamental diagrams, are caused by incomplete observations of traffic states. Theoretical results are consistent with observations in the literature and are verified by numerical simulations and empirical observations. We finally discuss potential applications and future studies.

Wen-Long Jin; Qi-Jian Gan; Jean-Patrick Lebacque

2013-10-09T23:59:59.000Z

35

Raindrop Velocity Spectrometer for Drop Chemistry Investigations  

Science Conference Proceedings (OSTI)

The design of an instrument that sorts raindrops according to fall speed is described. The apparatus consists of two rotating disks, the upper one allowing rain to fall through a slit into collectors on the lower disk. Drops are collected in a ...

S. G. Bradley

1985-06-01T23:59:59.000Z

36

A new model of cloud drop distribution that simulates the observed drop  

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

A new model of cloud drop distribution that simulates the observed drop A new model of cloud drop distribution that simulates the observed drop clustering: effect of clustering on extinction coefficient estimates Knyazikhin, Yuri Boston University Marshak, Alexander NASA Goddard Space Flight Center Larsen, Michael Michigan Technological University Wiscombe, Warren BNL/NASA Goddard Space Flight Center Category: Modeling Cloud droplet size distribution is one of the most fundamental subjects in cloud physics. Understanding of spatial distribution and small-scale fluctuations of cloud droplets is essential for both cloud physics and atmospheric radiation. For cloud physics, it relates to the coalescence growth of raindrops while for radiation, it has a strong impact on a cloud's radiative properties. We have developed new size dependent models

37

Variational Optimization Method for Calculation of Cloud Drop Growth in an Eulerian Drop-Size Framework  

Science Conference Proceedings (OSTI)

A variational optimization (VO) method that requires specification of only one variable in each bin size for condensation and evaporation calculations in an Eulerian drop-size framework is proposed. The method is tested against the exact solution ...

Qingfu Liu; Yefim L. Kogan; Douglas K. Lilly; Marat P. Khairoutdinov

1997-10-01T23:59:59.000Z

38

Pressure Drops Due to Silica Scaling  

DOE Green Energy (OSTI)

Experience with reinjection returns in many geothermal fields has prompted a move towards injecting waste fluids at some distance from the production field. This means that often, reinjection pipelines cover very long distances. If the waste water in the pipelines is supersaturated with respect to amorphous silica, then the deposition of silica in these pipelines is almost certain. Although the deposit may be of negligible thickness, the inner surface characteristics of the pipe will be different to those of clean mild steel. During a silica scaling experiment. geothermal brine was passed through a series of pipes of different sizes and over a period of three weeks, silica scale formed on the inner surface. The pressure drop along a distance of approximately 5m was measured by a water manometer in all test pipe sections. Significant pressure drop was observed during this time and can be correlated with the increase in the friction factor of the pipe walls due to silica scaling.

Brown, K.L.; Freeston, D.H.; Dimas, Z.O.; Slatter, A.

1995-01-01T23:59:59.000Z

39

Ultrasonic characterization of single drops of liquids  

DOE Patents (OSTI)

Ultrasonic characterization of single drops of liquids is disclosed. The present invention includes the use of two closely spaced transducers, or one transducer and a closely spaced reflector plate, to form an interferometer suitable for ultrasonic characterization of droplet-size and smaller samples without the need for a container. The droplet is held between the interferometer elements, whose distance apart may be adjusted, by surface tension. The surfaces of the interferometer elements may be readily cleansed by a stream of solvent followed by purified air when it is desired to change samples. A single drop of liquid is sufficient for high-quality measurement. Examples of samples which may be investigated using the apparatus and method of the present invention include biological specimens (tear drops; blood and other body fluid samples; samples from tumors, tissues, and organs; secretions from tissues and organs; snake and bee venom, etc.) for diagnostic evaluation, samples in forensic investigations, and detection of drugs in small quantities. 5 figs.

Sinha, D.N.

1998-04-14T23:59:59.000Z

40

Statistical Tools for Drop Size Distributions: Moments and Generalized Gamma  

Science Conference Proceedings (OSTI)

Several problems associated with drop size distributions are treated. For rainfall rate R or radar reflectivity Z high powers of the drop diameters must be taken into account. This paper suggests methods to deal with the relevant moments and to ...

A. N. Aufder Maur

2001-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "hughes incorporated dropped" 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

The Development of Drop Size Distributions in Light Rain  

Science Conference Proceedings (OSTI)

A model of rain development based on the quasi-stochastic coalescence equation and including the sedimentation of drops has been used to study the formation of drop size distributions in conditions of weak updraft. Comparisons with box model ...

I. Zawadzki; E. Monteiro; F. Fabry

1994-04-01T23:59:59.000Z

42

Temperature Fitting Method Predicting Equidistant Voltage Drop of ...  

Science Conference Proceedings (OSTI)

High Temperature Compression Test to Determine the Anode Paste ... Temperature Fitting Method Predicting Equidistant Voltage Drop of Anode Nod in ...

43

Drop Axis Ratios from a 2D Video Disdrometer  

Science Conference Proceedings (OSTI)

Results from an experiment to measure the drop shapes using a 2D video disdrometer (2DVD) are reported. Under calm conditions, drops were generated from a hose located on a bridge 80 m above ground, this height being sufficient to allow drop ...

Merhala Thurai; V. N. Bringi

2005-07-01T23:59:59.000Z

44

Delayed Frost Growth on Jumping-Drop Superhydrophobic Surfaces  

Science Conference Proceedings (OSTI)

Self-propelled jumping drops are continuously removed from a condensing superhydrophobic surface to enable a micrometric steady-state drop size. Here, we report that subcooled condensate on a chilled superhydrophobic surface are able to repeatedly jump off the surface before heterogeneous ice nucleation occurs. Frost still forms on the superhydrophobic surface due to ice nucleation at neighboring edge defects, which eventually spreads over the entire surface via an inter-drop frost wave. The growth of this inter-drop frost front is shown to be up to three times slower on the superhydrophobic surface compared to a control hydrophobic surface, due to the jumping-drop effect dynamically minimizing the average drop size and surface coverage of the condensate. A simple scaling model is developed to relate the success and speed of inter-drop ice bridging to the drop size distribution. While other reports of condensation frosting on superhydrophobic surfaces have focused exclusively on liquid-solid ice nucleation for isolated drops, these findings reveal that the growth of frost is an inter-drop phenomenon that is strongly coupled to the wettability and drop size distribution of the surface. A jumping-drop superhydrophobic condenser was found to be superior to a conventional dropwise condenser in two respects: preventing heterogeneous ice nucleation by continuously removing subcooled condensate, and delaying frost growth by minimizing the success of interdrop ice bridge formation.

Boreyko, Jonathan B [ORNL; Collier, Pat [ORNL

2013-01-01T23:59:59.000Z

45

Hugh Hardy Achievements  

E-Print Network (OSTI)

Jones, project manager; Maya Schali, project architect; JohnMueller, construction architect; Kristina Walker, interiors;Lowenberg, construction architect; Douglas Stebbins, project

2001-01-01T23:59:59.000Z

46

ENGINEERING HOWARD R. HUGHES  

E-Print Network (OSTI)

a solar-powered house that is energy-efficient, affordable, and attractive. ·Every graduating major of Energy Solar Decathlon 2013. Engineering and architecture students will design then build and operate to the future of Las Vegas. Their work is funded by agencies including the National Science Foundation

Hemmers, Oliver

47

Impact Dynamics of Oxidized Liquid Metal Drops  

E-Print Network (OSTI)

With exposure to air, many liquid metals spontaneously generate an oxide layer on their surface. In oscillatory rheological tests, this skin is found to introduce a yield stress that typically dominates the elastic response but can be tuned by exposing the metal to hydrochloric acid solutions of different concentration. We systematically studied the normal impact of eutectic gallium-indium (eGaIn) drops under different oxidation conditions and show how this leads to two different dynamical regimes. At low impact velocity (or low Weber number), eGaIn droplets display strong recoil and rebound from the impacted surface when the oxide layer is removed. In addition, the degree of drop deformation or spreading during the impact is controlled by the oxide skin. We show that the scaling law known from ordinary liquids for the maximum spreading radius as a function of impact velocity can still be applied to the case of oxidized eGaIn if an effective Weber number $We^{\\star}$ is employed that uses an effective surface...

Xu, Qin; Jaeger, Heinrich M

2013-01-01T23:59:59.000Z

48

Drilling costs drop 7% in 1985  

SciTech Connect

Drilling costs dropped about 7% last year. This decline cancels a slight increase in 1984. Total costs to drill now run about 59% of the 1981 highs. Comparable figures for the previous 2 years are 63 and 61%. Deeper wells showed the biggest drops. Shallow well costs fell about 6%. Energy Information Administration (EIA) indexes drilling costs on a 1976 base year. Costs for shallow wells (5,000 ft or less) show an index about 138. Deeper wells have an index around 149. Cost declines were the greatest in West and North Texas and the Rockies, of 11%. The Northeast and Western areas showed greater than average declines, 9% or so. The High Plains, New Mexico, and Midcontinent areas recorded near the average 7% decline. Costs in South Louisiana, the Southeast, and Ark-La-Tex 2%. West Central Texas costs were off only 1%. The Southeast was essentially unchanged. Indexes by area show generally that drilling costs have declined since 1983. The summary here comes from EIA's ''Indexes and Estimates of Domestic Well Drilling Costs 1984 and 1985''. That report covers oil, gas, and dry hole costs, cost components, and overall costs.

Anderson, T.; Funk, V.

1986-03-24T23:59:59.000Z

49

TOXCO Incorporated | Open Energy Information  

Open Energy Info (EERE)

Place British Columbia, Canada Zip V1R 4L5 Product British Columbia-based, lithium battery recycling firm. References TOXCO Incorporated1 LinkedIn Connections CrunchBase...

50

Shape oscillations of a viscoelastic drop  

SciTech Connect

Small-amplitude axisymmetric shape deformations of a viscoelastic liquid drop in microgravity are theoretically analyzed. Using the Jeffreys constitutive equation for linear viscoelasticity, the characteristic equation for the frequency and decay factor of the shape oscillations is derived. Asymptotic analysis of this equation is performed in the low- and high-viscosity limits and for the cases of small, moderate, and large elasticities. Elastic effects are shown to give rise to a type of shape oscillation that does not depend on the surface tension. The existence of such oscillations is confirmed by numerical solution of the characteristic equation in various regimes. A method for determining the viscoelastic properties of highly viscous liquids based upon experimental measurements of the frequency and damping rate of such shape oscillations is suggested.

Khismatullin, Damir B.; Nadim, Ali

2001-06-01T23:59:59.000Z

51

Horizontal Drop of 21- PWR Waste Package  

SciTech Connect

The objective of this calculation is to determine the structural response of the waste package (WP) dropped horizontally from a specified height. The WP used for that purpose is the 21-Pressurized Water Reactor (PWR) WP. The scope of this document is limited to reporting the calculation results in-terms of stress intensities. This calculation is associated with the WP design and was performed by the Waste Package Design group in accordance with the ''Technical Work Plan for: Waste Package Design Description for LA'' (Ref. 16). AP-3.12Q, ''Calculations'' (Ref. 1 1) is used to perform the calculation and develop the document. The sketches attached to this calculation provide the potential dimensions and materials for the 21-PWR WP design.

A.K. Scheider

2007-01-31T23:59:59.000Z

52

Load drop evaluation for TWRS FSAR  

Science Conference Proceedings (OSTI)

Operational or remediation activities associated with existing underground high-level waste storage tank structures at the Hanford Site often require the installation/removal of various equipment items. To gain tank access for installation or removal of this equipment, large concrete cover blocks must be removed and reinstalled in existing concrete pits above the tanks. An accidental drop of the equipment or cover blocks while being moved over the tanks that results in the release of contaminants to the air poses a potential risk to onsite workers or to the offsite public. To minimize this potential risk, the use of critical lift hoisting and rigging procedures and restrictions on lift height are being considered during development of the new tank farm Basis for Interim Operation and Final Safety Analysis Report. The analysis contained herein provides information for selecting the appropriate lift height restrictions for these activities.

Julyk, L.J.; Ralston, G.L.

1996-09-30T23:59:59.000Z

53

Molex Incorporated | Open Energy Information  

Open Energy Info (EERE)

Molex Incorporated Molex Incorporated Jump to: navigation, search Name Molex Incorporated Place Lisle, Illinois Zip 60532-1682 Product Illinois-based supplier of electronic components and interconnect products. The firm also produces junction boxes for PV modules. Coordinates 42.351811°, -76.004643° 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":42.351811,"lon":-76.004643,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

54

Tremco Incorporated | Open Energy Information  

Open Energy Info (EERE)

Tremco Incorporated Tremco Incorporated Jump to: navigation, search Name Tremco Incorporated Place Beachwood, Ohio Zip 44122 Sector Services Product Manufactures and sells roofing materials and services, as well as industrial coatings and sealants. The company has begun an effort to commercialise next generation building integrated PV systems. Coordinates 41.486346°, -81.501319° 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":41.486346,"lon":-81.501319,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

55

Rotek Incorporated | Open Energy Information  

Open Energy Info (EERE)

Rotek Incorporated Rotek Incorporated Jump to: navigation, search Name Rotek Incorporated Address 1400 South Chillicothe Road Place Aurora, Ohio Zip 44202 Sector Services, Solar, Wind energy Product Engineering/architectural/design; Maintenance and repair; Other:Component Supplier Phone number 330-562-4000 Website http://www.rotek-inc.com Coordinates 41.2783252°, -81.3460793° 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":41.2783252,"lon":-81.3460793,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

56

Microwave Dielectric Heating of Drops in Microfluidic Devices  

E-Print Network (OSTI)

We present a technique to locally and rapidly heat water drops in microfluidic devices with microwave dielectric heating. Water absorbs microwave power more efficiently than polymers, glass, and oils due to its permanent molecular dipole moment that has a large dielectric loss at GHz frequencies. The relevant heat capacity of the system is a single thermally isolated picoliter drop of water and this enables very fast thermal cycling. We demonstrate microwave dielectric heating in a microfluidic device that integrates a flow-focusing drop maker, drop splitters, and metal electrodes to locally deliver microwave power from an inexpensive, commercially available 3.0 GHz source and amplifier. The temperature of the drops is measured by observing the temperature dependent fluorescence intensity of cadmium selenide nanocrystals suspended in the water drops. We demonstrate characteristic heating times as short as 15 ms to steady-state temperatures as large as 30 degrees C above the base temperature of the microfluidi...

Issadore, David; Brown, Keith A; Sandberg, Lori; Weitz, David; Westervelt, Robert M

2009-01-01T23:59:59.000Z

57

Fat Man Dropped on Nagasaki | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Fat Man Dropped on Nagasaki | National Nuclear Security Administration Fat Man Dropped on Nagasaki | 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 > About Us > Our History > NNSA Timeline > Fat Man Dropped on Nagasaki Fat Man Dropped on Nagasaki August 09, 1945 Nagasaki, Japan Fat Man Dropped on Nagasaki The implosion model plutonium bomb, called Fat Man, is dropped on Nagasaki,

58

government share of university r&d drops - TMS  

Science Conference Proceedings (OSTI)

11/3 - GOVERNMENT SHARE OF UNIVERSITY R&D DROPS. In FY2008, universities reported science and engineering research and development...

59

Little Boy Dropped on Hiroshima | National Nuclear Security Administra...  

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

Little Boy Dropped on Hiroshima | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response...

60

Little Boy Dropped on Hiroshima | National Nuclear Security Administra...  

National Nuclear Security Administration (NNSA)

NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > About Us > Our History > NNSA Timeline > Little Boy Dropped on Hiroshima Little Boy...

Note: This page contains sample records for the topic "hughes incorporated dropped" 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

STRESS CORROSION CRACKING IN TEAR DROP SPECIMENS  

SciTech Connect

Laboratory tests were conducted to investigate the stress corrosion cracking (SCC) of 304L stainless steel used to construct the containment vessels for the storage of plutonium-bearing materials. The tear drop corrosion specimens each with an autogenous weld in the center were placed in contact with moist plutonium oxide and chloride salt mixtures. Cracking was found in two of the specimens in the heat affected zone (HAZ) at the apex area. Finite element analysis was performed to simulate the specimen fabrication for determining the internal stress which caused SCC to occur. It was found that the tensile stress at the crack initiation site was about 30% lower than the highest stress which had been shifted to the shoulders of the specimen due to the specimen fabrication process. This finding appears to indicate that the SCC initiation took place in favor of the possibly weaker weld/base metal interface at a sufficiently high level of background stress. The base material, even subject to a higher tensile stress, was not cracked. The relieving of tensile stress due to SCC initiation and growth in the HAZ and the weld might have foreclosed the potential for cracking at the specimen shoulders where higher stress was found.

Lam, P; Philip Zapp, P; Jonathan Duffey, J; Kerry Dunn, K

2009-05-01T23:59:59.000Z

62

Dependence of drop speed on nozzle diameter, viscosity and drive amplitude in drop-on-demand ink-jet printing  

E-Print Network (OSTI)

recent numerical codes developed by collaborators in the University of Leeds, and from simple models for drop-on-demand fluid jetting resulting from physical laws...

Hoath, S.D.; Hsiao, W.-K.; Jung, S.; Martin, G.D.; Hutchings, I.M.

2011-01-01T23:59:59.000Z

63

Laboratory Measurements of Particle Capture by Evaporating Cloud Drops  

Science Conference Proceedings (OSTI)

The capture efficiencies of evaporating cloud drops (5693 ?m radius) for particles of manganese hypophosphite (0.583.2 ?m radius) were obtained experimentally. In each experimental run, a large number of widely spaced uniform size drops fell ...

K. H. Leong; K. V. Beard; Harry T. Ochs III

1982-05-01T23:59:59.000Z

64

Japan Denies Report It Dropped Proposal to Host Fusion Reactor  

E-Print Network (OSTI)

Print Japan Denies Report It Dropped Proposal to Host Fusion Reactor June 22 (Bloomberg) -- Japan's science ministry denied a media report the country dropped its bid to host the world's first nuclear fusion reactor, a decision that would end a standoff with France to site the 4.6 billion-euro ($5

65

Stationary liquid drops in Lorentz-Minkowski space  

E-Print Network (OSTI)

This paper analyzes the configurations of shapes that shows a spacelike liquid drop in Minkowski space deposited over a spacelike plane $\\Pi$. We assume the presence of a uniform gravity field directed toward $\\Pi$ and that the volume of the drop is prescribed. Our interest are the liquid drops that are critical points of the energy of the corresponding mechanical system and we will say then that the liquid drop is stationary. In such case, the liquid-air interface is determined by the condition that the mean curvature is a linear function of distance from $\\Pi$ and that the drop makes a constant hyperbolic angle of contact with the plate $\\Pi$. As first result, we shall prove that the liquid drop must be rotational symmetric with respect to an axis orthogonal to $\\Pi$. Then we prove the existence and uniqueness of symmetric solutions for a given angle of contact with $\\Pi$. Finally, we shall study the shapes that a liquid drop can adopt in terms of its size. So, we shall derive estimates of its height, volume and area of the wetted surface on $\\Pi$.

Rafael Lopez

2005-01-12T23:59:59.000Z

66

Production Functions of Film Drops by Bursting Bubbles  

Science Conference Proceedings (OSTI)

Experimental results of Blanchard and Syzdek and of Resch and Afeti on the production of film drops by bubbles bursting at the surface of seawater were parameterized earlier by Wu. More recently, comprehensive observations have been carried out ...

Jin Wu

2001-11-01T23:59:59.000Z

67

Fragmentation of Freezing Drops in Shallow Maritime Frontal Clouds  

Science Conference Proceedings (OSTI)

Images of frozen drops with pieces missing were collected on two days of airborne sampling in shallow supercooled stratiform frontal clouds in the coastal waters of Washington State. In those limited regions where ice appeared to be newly formed, ...

Arthur L. Rangno

2008-04-01T23:59:59.000Z

68

Drop-in replacement biofuels : meeting the challenge  

E-Print Network (OSTI)

This thesis presents a discussion on the challenges that must be met to fulfill the U.S. Navy's strategic imperatives for its energy vision. It provides an introduction to drop-in replacement biofuels, the options amongst ...

Bhargava, Alok (Alok Kishore)

2011-01-01T23:59:59.000Z

69

Characterizations of Aircraft Icing Environments that Include Supercooled Large Drops  

Science Conference Proceedings (OSTI)

Measurements of aircraft icing environments that include supercooled large drops (SLD) greater than 50 ?m in diameter have been made during 38 research flights. These flights were conducted during the First and Third Canadian Freezing Drizzle ...

Stewart G. Cober; George A. Isaac; J. Walter Strapp

2001-11-01T23:59:59.000Z

70

Heat transfer and pressure drop in tape generated swirl flow  

E-Print Network (OSTI)

The heat transfer and pressure drop characteristics of water in tape generated swirl flow were investigated. The test sections were electrically heated small diameter nickel tubes with tight fitting full length Inconel ...

Lopina, Robert F.

1967-01-01T23:59:59.000Z

71

Experimental study and parameterization of gas absorption by water drops  

Science Conference Proceedings (OSTI)

Mass transfer between liquid drops and a continuous gas phase occurs in a large number of industrial processes and many engineering disciplines such as chemical and nuclear engineering, atmospheric sciences, environmental engineering, and so on. Liquid-phase mass-transfer coefficients are determined for the absorption of sulfur dioxide by water drops larger than 1.1 mm in dia. A local model based on the large eddy interfacial model proposed for Fortescue and Pearson (1967) is obtained by the characteristic interfacial scaling. In particular, the agitation process of the liquid phase in the interfacial region is characterized by the interfacial liquid friction velocity. Experiments of sulfur dioxide absorption and desorption from large individually free-falling water drops are also carried out in a 5-m rain shaft under various environmental conditions. These experimental results agree well with those from the local model characterizing the interfacial process in water drops greater than 1.1 mm in dia.

Amokrane, H.; Saboni, A.; Caussade, B. (CNRS, Toulouse (France). Inst. de Mecanique des Fluides)

1994-12-01T23:59:59.000Z

72

Comparison of Polarimetric Radar Drop Size Distribution Retrieval Algorithms  

Science Conference Proceedings (OSTI)

Recently, two physically based algorithms, the beta (?) method and the constrained-gamma method, have been proposed for retrieving the governing parameters of the gamma drop size distribution (DSD) from polarimetric radar measurements. The ? ...

Edward A. Brandes; Guifu Zhang; J. Vivekanandan

2004-04-01T23:59:59.000Z

73

Gas Absorption into a Moving Spheroidal Water Drop  

Science Conference Proceedings (OSTI)

Theoretical and experimental studies have been carried out to describe the absorption of sulfur dioxide by moving spheroidal water drops under transient flow conditions. These investigations allow the determination of the rate at which SO2 is ...

H. Amokrane; B. Caussade

1999-06-01T23:59:59.000Z

74

Spume Drops Produced by the Wind Tearing of Wave Crests  

Science Conference Proceedings (OSTI)

The wind tearing of breaking wave crests produces spume drops. The authors report preliminary laboratory data from direct and unambiguous observation of this process under various wind conditions using a video imaging technique. Results include ...

Magdalena Anguelova; Richard P. Barber Jr.; Jin Wu

1999-06-01T23:59:59.000Z

75

Demonstration Assessment of Light Emitting Diode (LED) Walkway Lighting at the Federal Aviation Administration William J. Hughes Technical Center, in Atlantic City, New Jersey  

SciTech Connect

This report documents the results of a collaborative project to demonstrate a solid state lighting (SSL) general illumination product in an outdoor area walkway application. In the project, six light-emitting diode (LED) luminaires were installed to replace six existing high pressure sodium (HPS) luminaires mounted on 14-foot poles on a set of exterior walkways and stairs at the Federal Aviation Administration (FAA) William J. Hughes Technical Center in Atlantic City, New Jersey, during December, 2007. The effort was a U.S. Department of Energy (DOE) SSL Technology Gateway Demonstration that involved a collaborative teaming agreement between DOE, FAA and Ruud Lighting (and their wholly owned division, Beta LED). Pre- and post-installation power and illumination measurements were taken and used in calculations of energy savings and related economic payback, while personnel impacted by the new lights were provided questionnaires to gauge their perceptions and feedback. The SSL product demonstrated energy savings of over 25% while maintaining illuminance levels and improving illuminance uniformity. PNNL's economic analysis yielded a variety of potential payback results depending on the assumptions used. In the best case, replacing HPS with the LED luminaire can yield a payback as low as 3 years. The new lamps were quite popular with the affected personnel, who gave the lighting an average score of 4.46 out of 5 for improvement.

Kinzey, Bruce R.; Myer, Michael

2008-03-18T23:59:59.000Z

76

New directions for gravitational wave physics via "Millikan oil drops"  

E-Print Network (OSTI)

"Millikan oil drops" are drops of superfluid helium coated with electrons, and levitated in a strong, inhomogeneous magnetic field. When the temperature of the system becomes very low compared to the cyclotron gap energy, the system remains in its quantum ground state. Two such levitated charged drops can have their charge-to-mass ratio critically adjusted so that the forces of gravity and electricity between the drops are in balance. Then it is predicted that the amount of scattered electromagnetic and gravitational radiation from the drops are equalized, along with these two kinds of forces. The cross sections for the scattering of the two kinds of radiation can become large, hard-sphere cross-sections at the first Mie resonance, due to the hard-wall boundary conditions on the surfaces of the spheres for both kinds of radiations. An efficient quantum transduction process between electromagnetic and gravitational radiation by such a pair of drops is predicted at microwave frequencies, and a Hertz-like experiment is proposed. A more practical implementation of these ideas to use pairs of levitated, charged superconducting spheres is briefly discussed.

Raymond Y. Chiao

2009-04-25T23:59:59.000Z

77

Microwave Dielectric Heating of Drops in Microfluidic Devices  

E-Print Network (OSTI)

We present a technique to locally and rapidly heat water drops in microfluidic devices with microwave dielectric heating. Water absorbs microwave power more efficiently than polymers, glass, and oils due to its permanent molecular dipole moment that has a large dielectric loss at GHz frequencies. The relevant heat capacity of the system is a single thermally isolated picoliter drop of water and this enables very fast thermal cycling. We demonstrate microwave dielectric heating in a microfluidic device that integrates a flow-focusing drop maker, drop splitters, and metal electrodes to locally deliver microwave power from an inexpensive, commercially available 3.0 GHz source and amplifier. The temperature of the drops is measured by observing the temperature dependent fluorescence intensity of cadmium selenide nanocrystals suspended in the water drops. We demonstrate characteristic heating times as short as 15 ms to steady-state temperatures as large as 30 degrees C above the base temperature of the microfluidic device. Many common biological and chemical applications require rapid and local control of temperature, such as PCR amplification of DNA, and can benefit from this new technique.

David Issadore; Katherine J. Humphry; Keith A. Brown; Lori Sandberg; David Weitz; Robert M. Westervelt

2009-01-09T23:59:59.000Z

78

Axis Ratios of Water Drops Levitated in a Vertical Wind Tunnel  

Science Conference Proceedings (OSTI)

The shapes of falling raindrops are often significantly altered by drop oscillations, complicating dual-polarization radar methods that rely on a predictable, monotonic variation of drop axis ratio ? with equivolume drop diameter d. This ...

B. K. Jones; J. R. Saylor

2009-11-01T23:59:59.000Z

79

Energy Innovator Drops Costs for Titanium Metalwork | Department of Energy  

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

Innovator Drops Costs for Titanium Metalwork Innovator Drops Costs for Titanium Metalwork Energy Innovator Drops Costs for Titanium Metalwork March 13, 2012 - 12:42pm Addthis Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What are the key facts? Iowa Powder Atomization Technology is one of 36 companies that licensed technology under an agreement with the National Lab as part of the America's Next Top Energy Innovator program. Titanium is the stuff aircrafts are made of, at least the important parts. It's an obvious material choice for aircraft engines and airframes with its high strength-to-weight ratio and resistance to corrosion. However, shaping the metal into complex shapes can be expensive. Using a heavier, easier-to-craft metal can be just as expensive because adding weight to an

80

EA-1933: Yakama Nation Drop 4 Hydropower Project, Yakama Nation  

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

933: Yakama Nation Drop 4 Hydropower Project, Yakama Nation 933: Yakama Nation Drop 4 Hydropower Project, Yakama Nation Reservation, WA EA-1933: Yakama Nation Drop 4 Hydropower Project, Yakama Nation Reservation, WA SUMMARY DOE is a cooperating agency with the Department of the Interior's Bureau of Indian Affairs as a lead agency for the preparation of an EA to evaluate the potential environmental impacts of a proposal by the Confederated Tribes and Bands of the Yakama Nation Department of Natural Resources to install an inline turbine on the Wapato Irrigation Project (WIP) Main Canal to generate approximately one megawatt of supplemental hydroelectric power. The Main Canal is a non-fish bearing irrigation canal within the WIP water conveyance system. The project site is located two miles southwest of Harrah, Washington.

Note: This page contains sample records for the topic "hughes incorporated dropped" 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

Frictionally induced ignition processes in drop and skid tests  

SciTech Connect

The standard LANL/Pantex drop and skid tests rely on subjective assessment of reaction violence to quantify the response of the charge, and completely miss nonpropagating hot-spot ignition sites. Additionally, large variations in test results have been observed, which we propose is due to a misunderstanding of the basic physical processes that lead to threshold ignition in these tests. The tests have been redesigned to provide control of these mechanisms and to permit direct observation of hot spots at the impact site, allowing us to follow the progression of the outcome as the drop height and ignition source density are varied. The results confirm that frictional interactions between high-melting-point solids are the dominant ignition mechanism, not just at the threshold, but in fact at all realistic drop heights.

Dickson, Peter [Los Alamos National Laboratory; Parker, Gary [Los Alamos National Laboratory; Novak, Alan [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

82

Incorporating Biodiversity Considerations Into Environmental Impact  

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

Incorporating Biodiversity Considerations Into Environmental Impact Incorporating Biodiversity Considerations Into Environmental Impact Analysis Under NEPA Incorporating Biodiversity Considerations Into Environmental Impact Analysis Under NEPA This Council on Environmental Quality (CEQ) report is intended to provide background on the emerging, complex subject of biodiversity, outline some general concepts that underlie biological diversity analysis and management, describe how the issue is currently addressed in NEPA analyses, and provide options for agencies undertaking NEPA analyses that consider biodiversity. Council on Environmental Quality: Incorporating Biodiversity Considerations Into Environmental Impact Analysis Under the National Environmental Policy Act More Documents & Publications Habitat Evaluation: Guidance for the Review of Environmental Impact

83

Incorporating Green Engineering and Sustainability into the ...  

Science Conference Proceedings (OSTI)

Presentation Title, Incorporating Green Engineering and Sustainability into the Engineering Curriculum. Author(s), Richard D Sisson, James C O'Shaughnessy, ...

84

Guidance on Incorporating EPA's Pollution Prevention Strategy...  

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

Review Process The guidance discusses the Environmental Protection Agency's definition of pollution prevention; how to incorporate pollution prevention into the EPA...

85

Incorporating Biodiversity Considerations Into Environmental Impact  

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

Incorporating Biodiversity Considerations Into Environmental Impact Incorporating Biodiversity Considerations Into Environmental Impact Analysis Under NEPA Incorporating Biodiversity Considerations Into Environmental Impact Analysis Under NEPA This Council on Environmental Quality (CEQ) report is intended to provide background on the emerging, complex subject of biodiversity, outline some general concepts that underlie biological diversity analysis and management, describe how the issue is currently addressed in NEPA analyses, and provide options for agencies undertaking NEPA analyses that consider biodiversity. Council on Environmental Quality: Incorporating Biodiversity Considerations Into Environmental Impact Analysis Under the National Environmental Policy Act More Documents & Publications Habitat Evaluation: Guidance for the Review of Environmental Impact

86

Drops of Energy Conserving Urban Water in California  

E-Print Network (OSTI)

in California to Reduce Greenhouse Gas Emissions improvements to their energy usage through efficiency measuresDrops of Energy Conserving Urban Water in California to Reduce Greenhouse Gas Emissions May 2011 School of Law's Center for Law, Energy & the Environment and UCLA School of Law's Environmental Law

Kammen, Daniel M.

87

Delamination initiation in postbuckled dropped-ply laminates  

Science Conference Proceedings (OSTI)

The compression strength of dropped-ply, graphite-epoxy laminated plates for the delamination mode of failure is studied by analysis and corroborated with experiments. The nonlinear response of the test specimens is modeled by a geometrically nonlinear finite-element analysis. The methodology for predicting delamination is based on a quadratic interlaminar stress criterion evaluated at a characteristic distance from the ply drop-off. The details of the complex state of stress in the region of the thickness discontinuity are studied using three-dimensional solid elements, while the uniform sections of the plate are modeled with quadrilateral shell elements. A geometrically nonlinear transition element was developed to couple the shell elements to the solid elements. Uniaxial compression testing of dropped-ply, graphite-epoxy laminated plates confirmed that delamination among the interfaces above and/or below the dropped plies is a common mode of failure initiation. The compression strength of specimens exhibiting a linear response is greater than the compression strength of specimens with the same layup exhibiting geometrically nonlinear response.

Davila, C.G.

1991-01-01T23:59:59.000Z

88

Transonic Pressure-- Sensing Studies Using Drop Test Vehicles  

SciTech Connect

Free-flight drop vehicle tests have been made to investigate devices for measuring ambient pressure in the vicinity of a high-fineness-ratio weapon shape throughout the transonic speed range. Various types of nose probes and trailing probes were tested.

Pepper, W.B., Jr. [Organization 5141

1954-05-01T23:59:59.000Z

89

Collision Rate of Small Graupel and Water Drops  

Science Conference Proceedings (OSTI)

An approach permitting one to calculate the collision efficiency and the collision kernel of spherical particles of different densities for Reynolds numbers up to 100 (300-?m-radius drops, or 700-?m-radius graupel) is presented. It is used for ...

A. Khain; M. Pinsky; M. Shapiro; A. Pokrovsky

2001-09-01T23:59:59.000Z

90

PRESSURE DROP EVALUATION OF THE HYDROGEN CIRCULATION SYSTEM FOR JSNS  

SciTech Connect

In J-PARC, an intense spallation neutron source (JSNS) driven by a proton beam of 1 MW has selected supercritical hydrogen with a temperature of around 20 K and the pressure of 1.5 MPa as a moderator material. A hydrogen-circulation system, which consists of two pumps, an ortho-para hydrogen converter, a heater, an accumulator and a helium-hydrogen heat exchanger, has been designed to provide supercritical hydrogen to the moderators and remove the nuclear heating there. A hydrogen-circulation system is cooled through the heat exchanger by a helium refrigerator with the refrigeration power of 6.45 kW at 15.5 K. It is important for the cooling design of the hydrogen-circulation system to understand the pressure drops through the equipments. In this work, the pressure drop through each component was analyzed by using a CFD code, STAR-CD. The correlation of the pressure drops through the components that can describe the analytical results within 14% differences has been derived. It is confirmed that the pressure drop in the hydrogen circulation system would be estimated to be 37 kPa for the circulation flow rate of 160 g/s by using the correlations derived here, and is sufficiently lower than the allowable pump head of 100 kPa.

Tatsumoto, H.; Aso, T.; Ohtsu, K.; Kato, T.; Futakawa, M. [J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195 (Japan)

2010-04-09T23:59:59.000Z

91

Two phase pressure drop in inclined and vertical pipes  

E-Print Network (OSTI)

A method of calculating the pressure drop in inclined and vertical oil-gas wells is proposed. The data used to establish the method is from a variety of sources but is largely from air and water flowing in systems close ...

Griffith, P.

1973-01-01T23:59:59.000Z

92

Manhattan Project: Order to Drop the Atomic Bomb  

Office of Scientific and Technical Information (OSTI)

ORDER TO DROP THE ATOMIC BOMB Handy to Spaatz, National Archives (July 25, 1945) Resources > Library The document below is the order to attack Japanese cities with atomic bombs. In it, the Acting Army Chief of Staff, Thomas Handy, orders Commanding General Carl Spaatz, Army Strategic Air Forces, to "deliver [the] first special bomb as soon as weather will permit . . . after about 3 August 1945." The target list: "Hiroshima, Kokura, Niigata, and Nagasaki." Further attacks were also authorized: "additional bombs will be delivered on the above targets as soon as made ready." Handy was the acting chief of staff because George Marshall was with President Harry S. Truman at the Potsdam Conference. The letter explicitly notes that this order was approved by Marshall and Secretary of War Henry Stimson. Truman, of course, provided the ultimate authorization for dropping the bomb.

93

Drop Tests for the 6M Specification Package Closure Investigation  

SciTech Connect

Results of tests of drum-type RAM packages employing conventional clamp-ring closures have caused concern within the DOE Complex over the Department of Transportation 6M Specification Package. To clarify these issues, the Savannah River Site's Radioactive Material Packaging Technology Group was commissioned to conduct a series of tests to determine the response of the clamp-ring closure to the regulatory Hypothetical Accident Condition drop tests, for packages at maximum allowable weight, 640 lb. Additionally, three enhanced closure designs were also tested: the Clamshell, plywood disk reinforcement, and J-Clip. The results of the tests showed that the standard closure was unable to retain its lid for both Center-of-Gravity-Over-Corner and Shallow-Angle cases, for the standard package, at its maximum allowed weight. Similar results were found for packages dropped from a reduced height. The Clamshell design provided the best performance of the enhanced closures.

Smith, A.C.

2003-10-02T23:59:59.000Z

94

Comments of Qualcomm Incorporated | Department of Energy  

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

Qualcomm Incorporated Qualcomm Incorporated Comments of Qualcomm Incorporated Qualcomm is pleased to provide these detailed comments to the Department of Energy ("DOE" or "Department") on how current and future wireless broadband communications capabilities can support the energy management needs of electric utilities, businesses, and consumers, which include requirements for the evolving and growing Smart Grid. The DOE should be applauded for timely following-up on the recommendations in the Federal Communications Commission's National Broadband Plan ("NBP") that focus on how broadband communications systems can achieve the critically important U.S. goals of energy independence and enhanced energy efficiency. See FCC NBP at 247. In this regard, Qualcomm explains how commercial

95

Modifying Char Dustcake Pressure Drop Using Particulate Additives  

DOE Green Energy (OSTI)

Coal gasification produces residual particles of coal char, coal ash, and sorbent that are suspended in the fuel gas stream exiting the gasifier. In most cases, these particles (referred to, hereafter, simply as char) must be removed from the stream prior to sending the gas to a turbine, fuel cell, or other downstream device. Currently, the most common approach to cleaning the gas stream at high temperature and pressure is by filtering the particulate with a porous ceramic or metal filter. However, because these dusts frequently have small size distributions, irregular morphology, and high specific surface areas, they can have very high gas flow resistance resulting in hot-gas filter system operating problems. Typical of gasification chars, the hot-gas filter dustcakes produced at the Power Systems Development Facility (PSDF) during recent coal gasification tests have had very high flow resistance (Martin et al, 2002). The filter system has been able to successfully operate, but pressure drops have been high and filter cleaning must occur very frequently. In anticipation of this problem, a study was conducted to investigate ways of reducing dustcake pressure drop. This paper will discuss the efficacy of adding low-flow-resistance particulate matter to the high-flow-resistance char dustcake to reduce dustcake pressure drop. The study had two parts: a laboratory screening study and confirming field measurements at the PSDF.

Landham, C.; Dahlin, R.S.; Martin, R.A.; Guan, X.

2002-09-19T23:59:59.000Z

96

Sliding drops across alternating hydrophobic and hydrophilic stripes  

E-Print Network (OSTI)

We perform a joint numerical and experimental study to sistematically characterize the motion of drops sliding over a periodic array of alternating hydrophobic and hydrophilic stripes with large wettability contrast, and typical width of hundreds of $\\mu \\textrm{m}$. The fraction of the hydrophobic stripes has been varied from about 20% to 80%. The effects of the heterogeneous patterning can be described by a renormalized value of the critical Bond number, i.e. the critical dimensionless force needed to depin the drop before it starts to move. Close to the critical Bond number we observe a jerkily motion characterized by an evident stick-slip dynamics. As a result, dissipation is strongly localized in time, and the mean velocity of the drops can easily decrease by an order of magnitude compared to the sliding on homogeneous surface. Lattice Boltzmann (LB) numerical simulations are crucial for disclosing to what extent the sliding dynamics can be deduced from the computed balance of capillary, viscous and body forces at varying the Bond number, the surface composition and the liquid viscosity. Away from the critical Bond number, we characterize both experimentally and numerically the dissipation inside the droplet by studying the relation between the average velocity and the applied volume forces.

M. Sbragaglia; L. Biferale; G. Amati; S. Varagnolo; D. Ferraro; G. Mistura; M. Pierno

2013-10-16T23:59:59.000Z

97

Adiabatic two-phase frictional pressure drops in microchannels  

SciTech Connect

Two-phase pressure drops were measured over a wide range of experimental test conditions in two sizes of microchannels (sight glass tubes 0.509 and 0.790 mm) for two refrigerants (R-134a and R-245fa). Similar to the classic Moody diagram in single-phase flow, three zones were distinguishable when plotting the variation of the two-phase friction factor versus the two-phase Reynolds number: a laminar regime for Re{sub TP} < 2000, a transition regime for 2000 {<=} Re{sub TP} < 8000 and a turbulent regime for Re{sub TP} {>=} 8000. The laminar zone yields a much sharper gradient than in single-phase flow. The transition regime is not predicted well by any of the prediction methods for two-phase frictional pressure drops available in the literature. This is not unexpected since only a few data are available for this region in the literature and most methods ignore this regime, jumping directly from laminar to turbulent flow at Re{sub TP} = 2000. The turbulent zone is best predicted by the Mueller-Steinhagen and Heck correlation. Also, a new homogeneous two-phase frictional pressure drop has been proposed here with a limited range of application. (author)

Revellin, Remi; Thome, John R. [EPFL, STI ISE LTCM, ME Gl 464, Station 9, CH-1015 Lausanne (Switzerland)

2007-07-15T23:59:59.000Z

98

Growth Of Cloud Drops by Condensation: A Criticism of Currently Accepted Theory and a New Approach  

Science Conference Proceedings (OSTI)

The currently accepted theory of the growth of cloud drops by condensation employs an equation for the rate of increase of drop mass and an equation for the supersaturation. The latter equation gives the average supersaturation over a large ...

R. C. Srivastava

1989-04-01T23:59:59.000Z

99

Drop Shapes, Model Comparisons, and Calculations of Polarimetric Radar Parameters in Rain  

Science Conference Proceedings (OSTI)

Drop shapes derived from a previously conducted artificial rain experiment using a two-dimensional video disdrometer (2DVD) are presented. The experiment involved drops falling over a distance of 80 m to achieve their terminal velocities as well ...

M. Thurai; G. J. Huang; V. N. Bringi; W. L. Randeu; M. Schnhuber

2007-06-01T23:59:59.000Z

100

The Impression to Drop Size Ratio for the Raindrop Foil Impactor  

Science Conference Proceedings (OSTI)

A general calibration equation has been developed for the raindrop foil impactor. From experimental data the impression to drop size ratio is related to a nondimensional impact parameter and to the drop diameter to groove spacing ratio. These ...

R. L. Hobbs

1981-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "hughes incorporated dropped" 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

Collisions between Small Precipitation Drops. Part I: Laboratory Measurements of Bounce, Coalescence, and Temporary Coalescence  

Science Conference Proceedings (OSTI)

Self-collection efficiencies were measured for isolated drop pairs failing at terminal velocity using orthogonal cameras to obtain the horizontal offset of the drops before collision and the collision outcome. Data were obtained on four different ...

Harry T. Ochs III; Kenneth V. Beard; Robert R. Czys; Neil F. Laird; Daniel E. Schaufelberger; Donna J. Holdridge

1995-06-01T23:59:59.000Z

102

Effects of Relative Humidity on the Coalescence of Small Precipitation Drops in Free Fall  

Science Conference Proceedings (OSTI)

Observations of the effects of relative humidity on coalescence are limited to studies using supported drops or streams of drops, and the results are contradictory. In this paper, findings are presented on the effect of high and low relative ...

Harry T. Ochs III; Kenneth V. Beard; Neil F. Laird; Donna J. Holdridge; Daniel E. Schaufelberger

1995-11-01T23:59:59.000Z

103

Laboratory and In Situ Observation of Deposition Growth of Frozen Drops  

Science Conference Proceedings (OSTI)

The water vapor deposition growth of frozen drops with diameter greater than 100 ?m has been studied in a thermal diffusion chamber. For varying periods of time, it was found that frozen drops experience spherical growth. The characteristic time ...

Alexei V. Korolev; Matthew P. Bailey; John Hallett; George A. Isaac

2004-04-01T23:59:59.000Z

104

The Influence of Charge on the Coalescence of Water Drops in Free Fall  

Science Conference Proceedings (OSTI)

The influence of charge on coalescence was determined in the laboratory for isolated pairs of 340 and 190 ?m water drops failing freely at terminal velocity. A microcomputer-controlled apparatus was used to produce collisions. Drop charges were ...

Robert R. Czys; Harry T. Ochs III

1988-11-01T23:59:59.000Z

105

Doppler Polarimetric Radar Measurements of the Gamma Drop Size Distribution of Rain  

Science Conference Proceedings (OSTI)

The conversion of radar reflections into rain intensities is dependent upon assumptions regarding the drop size distribution. The gamma drop size distribution contains three unknown parameters; the number of parameters that can be obtained ...

H. W. J. Russchenberg

1993-12-01T23:59:59.000Z

106

A Wind Tunnel Investigation of Interactions between Supercooled Precipitation-Size Water Drops  

Science Conference Proceedings (OSTI)

Laboratory experiments were performed to investigate interactions between small (400900 ?m) precipitation-size drops at temperatures colder than 0C. The investigation was accomplished by creating a light shower of supercooled drizzle drops in a ...

Robert R. Czys; Jeffrey K. Lew

1999-09-01T23:59:59.000Z

107

A Wind Tunnel Study of Turbulence Effects on the Scavenging of Aerosol Particles by Water Drops  

Science Conference Proceedings (OSTI)

Laboratory experiments are described where the effects of turbulence on the impaction scavenging of aerosol particles by water drops were investigated. During the experiments the drops were freely suspended at their terminal velocities in the ...

O. Vohl; S. K. Mitra; K. Diehl; G. Huber; S. C. Wurzler; K-L. Kratz; H. R. Pruppacher

2001-10-01T23:59:59.000Z

108

Potential hydroelectric power Mora Canal Drop. Final report  

DOE Green Energy (OSTI)

The feasibility of installing a hydroelectric power plant on the Mora Canal Drop site in Idaho was studied. It was recommended that a 1900 kW unit be installed to generate 8,113,000 kWh per year. The project should cost approximately $1.8 million. The generating cost would be between 20.3 and 22.2 mills/kWh. A local utility has offered to buy all power produced at 26 mills/kWh. No adverse environment, safety, or socio-economic effects are foreseen. (LCL)

Willer, D.C.

1978-12-01T23:59:59.000Z

109

High speed shadowgraphy for the study of liquid drops  

E-Print Network (OSTI)

: Creating Panoramic and Object Images, Library of Congress, ISBN: 978-0-165-34223-8, p 38. Hutchings I M, Martin G D and Hoath S D, (2007) Journal of Imaging Science and Technology 51(5), 438-444. Jones A R, (1977) Progress in Energy and Combustion... High speed shadowgraphy for the study of liquid drops Jos Rafael Castrejn-Pita, Rafael Castrejn-Garca, Ian Hutchings Department of Engineering, University of Cambridge, CB3 0FS, 17 Charles Babbage Road, Cambridge, United Kingdom...

Castrejon-Pita, J.R.; Castrejon-Garcia, R.; Hutchings, I.M.

2012-01-01T23:59:59.000Z

110

Conditioning analysis of incomplete Cholesky factorizations with orthogonal dropping  

SciTech Connect

The analysis of preconditioners based on incomplete Cholesky factorization in which the neglected (dropped) components are orthogonal to the approximations being kept is presented. General estimate for the condition number of the preconditioned system is given which only depends on the accuracy of individual approximations. The estimate is further improved if, for instance, only the newly computed rows of the factor are modified during each approximation step. In this latter case it is further shown to be sharp. The analysis is illustrated with some existing factorizations in the context of discretized elliptic partial differential equations.

Napov, Artem

2012-03-16T23:59:59.000Z

111

Green River Biodiesel Incorporated | Open Energy Information  

Open Energy Info (EERE)

Biodiesel Incorporated Biodiesel Incorporated Jump to: navigation, search Name Green River Biodiesel Incorporated Place Houston, Texas Zip 77056 Product Biodiesel project developer and producer. Coordinates 29.76045°, -95.369784° 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":29.76045,"lon":-95.369784,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

112

Diverse Power Incorporated | Open Energy Information  

Open Energy Info (EERE)

Diverse Power Incorporated Diverse Power Incorporated Jump to: navigation, search Name Diverse Power Incorporated Place Georgia Utility Id 19219 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 General Electric Service Commercial General Electric Service* Commercial Outdoor Lighting HPS 100 W Lighting Outdoor Lighting HPS 150 W Lighting Outdoor Lighting HPS 250 W Lighting Outdoor Lighting HPS 400 W Lighting Outdoor Lighting MH 1000 W Lighting Outdoor Lighting MH 400 W Lighting Outdoor Lighting MV 175 W Lighting

113

MAN Ferrostaal Incorporated | Open Energy Information  

Open Energy Info (EERE)

MAN Ferrostaal Incorporated MAN Ferrostaal Incorporated Jump to: navigation, search Name MAN Ferrostaal Incorporated Place Cleveland Zip 44122 Product Project developer and engineering company and US-based operating subsidiary of MAN Ferrostaal AG. Coordinates 41.504365°, -81.690459° 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":41.504365,"lon":-81.690459,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

114

Drop Dynamics and Speciation in Isolation of Metals from Liquid Wastes by Reactive Scavenging  

SciTech Connect

Computational and experimental studies of the motion and dynamics of liquid drops in gas flows were conducted with relevance to reactive scavenging of metals from atomized liquid waste. Navier-Stoke's computations of deformable drops revealed a range of conditions from which prolate drops are expected, and showed how frajectiones of deformable drops undergoing deceleration can be computed. Experimental work focused on development of emission fluorescence, and scattering diagnostics. The instrument developed was used to image drop shapes, soot, and nonaxisymmetric departures from steady flow in a 22kw combustor

Arne J. Pearlstein; Alexander Scheeline

2002-08-30T23:59:59.000Z

115

Packet Drop Avoidance for High-speed network transmission protocol  

SciTech Connect

As network bandwidth continues to grow and longer paths are used to exchange large scientific data between storage systems and GRID computation, it has become increasingly obvious that there is a need to deploy a packet drop avoidance mechanism into network transmission protocols. Current end-to-end congestion avoidance mechanisms used in Transmission Control Protocol (TCP) have worked well on low bandwidth delay product networks, but with newer high-bandwidth delay networks they have shown to be inefficient and prone to unstable. This is largely due to increased network bandwidth coupled with changes in internet traffic patterns. These changes come from a variety of new network applications that are being developed to take advantage of the increased network bandwidth. This paper will examine the end-to-end congestion avoidance mechanism and perform a step-by-step analysis of its theory. In addition we will propose an alternative approach developed as part of a new network transmission protocol. Our alternative protocol uses a packet drop avoidance (PDA) mechanism built on top of the maximum burst size (MBS) theory combined with a real-time available bandwidth algorithm.

Jin, Guojun

2004-05-01T23:59:59.000Z

116

Drop Tests for the 6M Specification Package Closure Investigation  

SciTech Connect

Results of tests of drum-type RAM packages employing conventional clamp-ring closures have caused concern over the DOT 6M Specification Package. To clarify these issues, a series of tests were performed to determine the response of the clamp-ring closure to the regulatory Hypothetical Accident Condition (9m) drop tests, for packages at maximum allowable weight. Three enhanced closure designs were also tested: the Clamshell, plywood disk reinforcement, and J-Clip. The results of the tests showed that the standard closure was unable to retain the top for both Center-of-Gravity-Over-Corner and Shallow Angle cases, for the standard package, at its maximum allowed weight. Similar results were found for packages dropped from a reduced height. The Clamshell design provided the best performance of the enhanced closures. It was concluded that the closure ring design employed on the 6M is inadequate to retain the top during the regulatory test sequence, for packages at the maximum allowed weight. For large heavy packages, the Center-of-Gravity- Over-Corner case is more challenging than the Shallow Angle case. The Clamshell design securely retained the top for all HAC test cases, and prevented formation of any opening which could compromise fire test performance.

SMITH, AC

2004-04-30T23:59:59.000Z

117

Combined cycle power plant incorporating coal gasification  

DOE Patents (OSTI)

A combined cycle power plant incorporating a coal gasifier as the energy source. The gases leaving the coal gasifier pass through a liquid couplant heat exchanger before being used to drive a gas turbine. The exhaust gases of the gas turbine are used to generate both high pressure and low pressure steam for driving a steam turbine, before being exhausted to the atmosphere.

Liljedahl, Gregory N. (Tariffville, CT); Moffat, Bruce K. (Simsbury, CT)

1981-01-01T23:59:59.000Z

118

BIG SUN Energy Technology Incorporation | Open Energy Information  

Open Energy Info (EERE)

Technology Incorporation Place Taiwan Zip 303 Sector Solar Product Taiwan-based solar cell manufacturer. References BIG SUN Energy Technology Incorporation1 LinkedIn...

119

Total number of longwall faces drops below 50  

Science Conference Proceedings (OSTI)

For the first time since Coal Age began its annual Longwall Census the number of faces has dropped below 50. A total of five mines operate two longwall faces. CONSOL Energy remains the leader with 12 faces. Arch Coal operates five longwall mines; Robert E. Murray owns five longwall mines. West Virginia has 13 longwalls, followed by Pennsylvania (8), Utah (6) and Alabama (6). A detailed table gives for each longwall installation, the ownership, seam height, cutting height, panel width and length, overburden, number of gate entries, depth of cut, model of equipment used (shearer, haulage system, roof support, face conveyor, stage loader, crusher, electrical controls and voltage to face). 2 tabs., 1 photo.

Fiscor, S.

2009-02-15T23:59:59.000Z

120

Drop Tests of 325 Pound 6M Specification Packages  

Science Conference Proceedings (OSTI)

Testing of 6M specification packages, performed in response to concerns over the integrity of the clamp-ring closure, showed that the clamp-ring was unable to retain the top in thirty foot drop tests of packages having the maximum allowed weight (290 kg or 640 lb). To determine if the clamp-ring closure was adequate for packages with lower contents weight, a series of tests were performed on packages weighing 147 kg (325 lb) at a range of impact angles. The results showed that the standard clamp-ring closure was unable to retain the top in tests of standard 6M packages weighing 147 kg (325 lb). A test employing a plywood disk enhanced closure with impact at 6.5 degrees retained its top successfully.

SMITH, AC

2004-04-30T23:59:59.000Z

Note: This page contains sample records for the topic "hughes incorporated dropped" 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

Flux Power Incorporated | Open Energy Information  

Open Energy Info (EERE)

Flux Power Incorporated Flux Power Incorporated Jump to: navigation, search Name Flux Power Incorporated Place Vista, California Zip 92081 Product California-based FLux Ppower was created in late-2009 to provide monitoring, diagnostics and charging technology aimed at extending the life of lithium-ion batteries. The company signed a supply deal with Wheego in January 2010. Coordinates 37.989712°, -93.665689° 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":37.989712,"lon":-93.665689,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

122

General Biodiesel Incorporated | Open Energy Information  

Open Energy Info (EERE)

Biodiesel Incorporated Biodiesel Incorporated Jump to: navigation, search Name General Biodiesel Incorporated Place Seattle, Washington Zip 98136 Product General BioDieselâ"¢, Inc. specializes in producing high-quality biodiesel by processing vegetable oils (primarily palm, canola, soy, linseed, coconut, mustard and cotton) and by cleaning and recycling cooking oils. Coordinates 47.60356°, -122.329439° 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":47.60356,"lon":-122.329439,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

123

Orbits and reversals of a drop rolling inside a horizontal circular hydraulic jump  

E-Print Network (OSTI)

We explore the complex dynamics of a non-coalescing drop of moderate size inside a circular hydraulic jump of the same liquid formed on a horizontal disk. In this situation the drop is moving along the jump and one observes two different motions: a periodic one (it orbitates at constant speed) and an irregular one involving reversals of the orbital motion. Modeling the drop as a rigid sphere exchanging friction with liquid across a thin film of air, we recover the orbital motion and the internal rotation of the drop. This internal rotation is experimentally observed.

Alexis Duchesne; Clment Savaro; Luc Lebon; Christophe Pirat; Laurent Limat

2013-01-29T23:59:59.000Z

124

A New Look into the Treatment of Small-Scale Drop Variability...  

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

entropy and thus convey minimum information about drop distribution variation in space (Ash 1965). The use of such distributions in the radiative transfer equation, therefore,...

125

Anisotropic wetting and de-wetting of drops on substrates patterned with polygonal posts  

E-Print Network (OSTI)

We present results showing how water drops, produced by ink-jet printing, spread on surfaces patterned with lattices of diamond or triangular posts. Considering post widths typically ~7 m and lattice spacings between 15-40 m, we observe drop shapes with 3,4 and 6-fold symmetry, depending on both the symmetry of the lattice and the shape of the posts. This is a result of the different mechanisms of interface pinning and depinning which depend on the direction of the contact line motion with respect to the post shape. Lattice Boltzmann simulations are used to describe these mechanisms in detail for triangular posts. We also follow the motion of the contact line as the drops evaporate showing that they tend to return to their original shape. To explain this we show that the easy direction for movement is the same for spreading and drying drops. We compare the behaviour of small drops with that of larger drops created by jetting several drops at the same position. We find that the contact line motion is unexpectedly insensitive to drop volume, even when a spherical cap of fluid forms above the posts. The findings are relevant to microfluidic applications and to the control of drop shapes in ink-jet printing.

Robert J. Vrancken; Matthew L. Blow; Halim Kusumaatmaja; Ko Hermans; An M. Prenen; Cees W. M. Bastiaansen; Dirk J. Broer; Julia M. Yeomans

2012-10-23T23:59:59.000Z

126

Design of shell and tube heat exchanger using specified pressure drop.  

E-Print Network (OSTI)

??The pressure drops used in heat exchange of shell and tube type, the situations are particular and put ahead of the design exercise. In such (more)

Bilimoria, Vimalkumar B.

2010-01-01T23:59:59.000Z

127

Co-gasification of biomass with coal and oil sands coke in a drop tube furnace.  

E-Print Network (OSTI)

??Chars were obtained from individual fuels and blends with different blend ratios of coal, coke and biomass in Drop Tube Furnace at different temperatures. Based (more)

Gao, Chen

2010-01-01T23:59:59.000Z

128

Control of emulsion drop production in flow focusing microfluidics  

E-Print Network (OSTI)

Generating droplets using flow-focusing microfluidics in multiphase flows has reached its limit that it cannot generate submicrometer droplets in size. Flow focusing geometry together with an electric field has been used to make smaller droplets in microchannels. The droplet size was controllable by the flow rate ratio as well as the electric field. The droplets size decreased as the voltage increased. A Taylor cone was formed to generate very fine droplets which were less than 1m? in diameter. The tip made smaller droplets due to the tangential force by the electric field. A small inner flow rate and high electric field were required to form a stable Taylor cone in a DC electric field. The droplet size, however, was not stable at a small water flow rate because the flow rate was not as accuate as required. When I used a modified syringe pump with more accurate flow rate control, I was able to obtain a stable set of data. A small change in droplet size occurred at low voltage. The drop size changed dramatically, when the voltage was high enough. I also observed how an AC electric field affects the droplet size. The droplet size was not solely determined by the voltage. This is because of the imbalance of the supplied flow rate and the emitted flow rate. I also found that the droplet size is related to the tip position of the dispersed phase. The droplet size decreased as the tip stretched more. Typically, the microfluidic device generated monodispese droplets in narrow size distribution. It also generated a bigger droplet followed by a smaller one consecutively at low flow rate ratio of inner and outer fluid flow ()265.0/09.0??oiQQ. To understand this instability of drop formation, a numerical calculation was conducted. The simulation results showed inside of the tip still pointed downstream after it generated a big droplet. Then, the tip generated another smaller droplet while the tip was stretched. Finally, the tip moved back and began a new cycle.

Kim, Haejune

2007-08-01T23:59:59.000Z

129

Incorporation of noble metals into aerogels  

DOE Patents (OSTI)

Aerogels or xerogels containing atomically dispersed noble metals for applications such as environmental remediation are disclosed. New noble metal precursors, such as Pt--Si or Pd(Si--P){sub 2}, have been created to bridge the incompatibility between noble metals and oxygen, followed by their incorporation into the aerogel or xerogel through sol-gel chemistry and processing. Applications include oxidation of hydrocarbons and reduction of nitrogen oxide species, complete oxidation of volatile organic carbon species, oxidative membranes for photocatalysis and partial oxidation for synthetic applications.

Hair, L.M.; Sanner, R.D.; Coronado, P.R.

1998-12-22T23:59:59.000Z

130

Incorporation of noble metals into aerogels  

DOE Patents (OSTI)

Aerogels or xerogels containing atomically dispersed noble metals for applications such environmental remediation. New noble metal precursors, such as Pt--Si or Pd(Si--P).sub.2, have been created to bridge the incompatibility between noble metals and oxygen, followed by their incorporation into the aerogel or xerogel through sol-gel chemistry and processing. Applications include oxidation of hydrocarbons and reduction of nitrogen oxide species, complete oxidation of volatile organic carbon species, oxidative membranes for photocatalysis and partial oxidation for synthetic applications.

Hair, Lucy M. (Livermore, CA); Sanner, Robert D. (Livermore, CA); Coronado, Paul R. (Livermore, CA)

1998-01-01T23:59:59.000Z

131

Radiation collimator and systems incorporating same  

SciTech Connect

A collimator including a housing having disposed therein a shield element surrounding a converter core in which a photon beam is generated from electrons emanating from a linear accelerator. A beam channeler longitudinally adjacent the shield element has a beam aperture therethrough coaxially aligned with, and of the same diameter as, an exit bore of the converter core. A larger entry bore in the converter core is coaxial with, and longitudinally separated from, the exit bore thereof. Systems incorporating the collimator are also disclosed.

Norman, Daren R. (Idaho Falls, ID); Yoon, Woo Y. (Idaho Falls, ID); Jones, James L. (Idaho Falls, ID); Haskell, Kevin J. (Idaho Falls, ID); Bennett, Brion D. (Idaho Falls, ID); Tschaggeny, Charles W. (Woods Cross, UT); Jones, Warren F. (Idaho Falls, ID)

2011-09-13T23:59:59.000Z

132

Stability issues in IC Low Drop Out voltage regulators  

E-Print Network (OSTI)

Performance issues of IC Low Drop Out (LDO) voltage regulators, with specific reference to stability, are discussed in this thesis. Evaluation of existing frequency compensation schemes and their performances across operating loads is presented. The problem of instability of the LDO voltage regulator at low Electo Static Resistance (ESR) of the load capacitors and the consequences of this problem are highlighted. As a solution to some of the discussed problems, an alternate LDO voltage regulator topology that is stable with low Electro Static Resistance (ESR) capacitive loads is presented. The proposed scheme, instead of relying on the zero generated by the load capacitor and its ESR combination for stability, generates a zero internally. The LDO voltage regulator is implemented and fabricated in AMI 0.5mm CMOS technology through MOSIS service. It is demonstrated that this scheme realizes robust frequency compensation, facilitates use of Multi Layer Ceramic Capacitors (MLCC) for load of LDO regulators, and improves transient response and noise performance. Test results from the prototype provide an evaluation of the most important parameters of the regulator: ground current, load regulation, line regulation, output noise and start-up time.

Chava, Krishna Chaitanya

2002-01-01T23:59:59.000Z

133

Incorporating Experience Curves in Appliance Standards Analysis  

Science Conference Proceedings (OSTI)

The technical analyses in support of U.S. energy conservation standards for residential appliances and commercial equipment have typically assumed that manufacturing costs and retail prices remain constant during the projected 30-year analysis period. There is, however, considerable evidence that this assumption does not reflect real market prices. Costs and prices generally fall in relation to cumulative production, a phenomenon known as experience and modeled by a fairly robust empirical experience curve. Using price data from the Bureau of Labor Statistics, and shipment data obtained as part of the standards analysis process, we present U.S. experience curves for room air conditioners, clothes dryers, central air conditioners, furnaces, and refrigerators and freezers. These allow us to develop more representative appliance price projections than the assumption-based approach of constant prices. These experience curves were incorporated into recent energy conservation standards for these products. The impact on the national modeling can be significant, often increasing the net present value of potential standard levels in the analysis. In some cases a previously cost-negative potential standard level demonstrates a benefit when incorporating experience. These results imply that past energy conservation standards analyses may have undervalued the economic benefits of potential standard levels.

Garbesi, Karina; Chan, Peter; Greenblatt, Jeffery; Kantner, Colleen; Lekov, Alex; Meyers, Stephen; Rosenquist, Gregory; Buskirk, Robert Van; Yang, Hung-Chia; Desroches, Louis-Benoit

2011-10-31T23:59:59.000Z

134

We encountered a particularly intriguing imita-tion bird-dropping on the dorsal wing surface  

E-Print Network (OSTI)

to have false images of flies on its wings. It may be our imagination, but don't those red compound eyesWe encountered a particularly intriguing imita- tion bird-dropping on the dorsal wing surface the imitation bird dropping and odor was accom- panied by a most extraordinary wing pattern. To our astonishment

Monteiro, Antónia

135

Analysis of Model-Produced Raindrop Size Distributions in the Small-Drop Range  

Science Conference Proceedings (OSTI)

Current models of drop coalescence and breakup generate raindrop size distributions that evolve toward an equilibrium whose form features a pronounced peak in the small-drop range. It has been known for some time that the peak can be attributed ...

Philip S. Brown Jr.

1999-05-01T23:59:59.000Z

136

Gas Scavenging of Soluble and Insoluble Organic Vapors by Levitated Water Drops  

Science Conference Proceedings (OSTI)

Three-millimeter-diameter drops of water were levitated with a standing acoustic wave centered in the jet of a small wind tunnel and the volume changes as the drop evaporates in the presence of 1-propanol vapor were measured. The results are ...

Mark Seaver; Amy Barrett

1994-07-01T23:59:59.000Z

137

Influence of voltage drop to electric drive with induction motor and voltage sourced inverter  

Science Conference Proceedings (OSTI)

This paper solves problematic of immunity from the voltage drop of the power supply of the electric drive with induction motor with Voltage-Fed inverter. There are reflected opportune control algorithms for the quickly to change of working regime from ... Keywords: electric drive with induction motor, electric drive with voltage sourced inverter, voltage drop

P. Bene; J. Fo?t; M. Pittermann

2011-09-01T23:59:59.000Z

138

A Sensitivity Study of a Theoretical Model Of SO2 Scavenging by Water Drops in Air  

Science Conference Proceedings (OSTI)

The rate at which SO2 is removed from air by a water drop has been investigated by solving numerically the convective diffusion equation for SO2 diffusing through air into a water drop where the species SO2H2O, HSO3?, SO3? and SO4? were assumed ...

L. B. Baboolal; H. R. Pruppacher; J. H. Topalian

1981-04-01T23:59:59.000Z

139

Thermionic energy conversion research analysis. Annual progress report. [Study on plasma arc-drop  

DOE Green Energy (OSTI)

This progress report summarizes the major results presented in ''Preliminary Report on Plasma Arc-Drop in Thermionic Energy Converters,'' (COO-2533-1), and includes additional discussions on the magnitude of the normalized plasma resistance required to achieve low arc-drop converter operation.

Lam, S.H.

1976-01-01T23:59:59.000Z

140

U-199: Drupal Drag & Drop Gallery Module Arbitrary File Upload  

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

9: Drupal Drag & Drop Gallery Module Arbitrary File Upload 9: Drupal Drag & Drop Gallery Module Arbitrary File Upload Vulnerability U-199: Drupal Drag & Drop Gallery Module Arbitrary File Upload Vulnerability June 26, 2012 - 7:00am Addthis PROBLEM: A vulnerability has been reported in the Drag & Drop Gallery module for Drupal, which can be exploited by malicious people to compromise a vulnerable system. PLATFORM: Drupal Drag & Drop Gallery Module 6.x ABSTRACT: The vulnerability is caused due to the sites/all/modules/dragdrop_gallery/upload.php script improperly validating uploaded files, which can be exploited to execute arbitrary PHP code by uploading a PHP file with e.g. an appended ".gif" file extension. Reference Links: Original Advisory Secunia ID 49698 No Current CVE Reference IMPACT ASSESSMENT:

Note: This page contains sample records for the topic "hughes incorporated dropped" 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

Lifetime of micrometer-sized drops of oil pressed by buoyancy against a planar interface  

E-Print Network (OSTI)

Emulsion Stability Simulations (ESS) are used to estimate the coalescence time of one drop of hexadecane pressed by buoyancy against a planar water/hexadecane interface. In the present simulations the homophase is represented by a big drop of oil at least 500 times larger than the approaching drop ($1\\,\\mu$m to $10\\,\\mu$m). Both deformable and non-deformable drops are considered along with six different diffusion tensors. In each case van der Waals, electrostatic, steric and buoyancy forces are taken into account. The coalescence times are estimated as the average of 1000 random walks. It is found that the repulsive potential barrier has a significant influence in the results. The experimental data can only be reproduced assuming negligible repulsive barriers, as well as non-deformable drops that move with a combination of Stokes and Taylor tensors as they approach the interface.

Clara Rojas; German Urbina-Villalba; Maximo Garcia-Sucre

2010-01-13T23:59:59.000Z

142

NEVADA TEAM AGREEMENT BETWEEN WACKENHUT SERVICES, INCORPORATED  

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

NEVADA TEAM NEVADA TEAM AGREEMENT BETWEEN WACKENHUT SERVICES, INCORPORATED AND INDEPENDENT GUARD ASSOCIATION OF NEVADA LOCAL NO. 1 2009 - 2014 LAS VEGAS, NEVADA LAS VEGAS, NEVADA AGREEMENT BETWEEN WSI AND INDEPENDENT GUARD ASSOCIATION OF NEVADA LOCAL NO. 1 2009 - 2014 LAS VEGAS, NEVADA 1 AGREEMENT BETWEEN WSI AND INDEPENDENT GUARD ASSOCIATION OF NEVADA LOCAL NO. 1 2009 - 2014 LAS VEGAS, NEVADA 2 PREAMBLE This Agreement is entered into this first day of July 2009, by and between WSI, hereinafter referred to as the "Company" and the Independent Guard Association of Nevada, Local No. 1, hereinafter referred to as the "Union" as the sole and exclusive representative for the purposes of collective bargaining for the Company's employees employed at the locations described in

143

Radiation shielding materials and containers incorporating same  

DOE Patents (OSTI)

An improved radiation shielding material and storage systems for radioactive materials incorporating the same. The PYRolytic Uranium Compound ("PYRUC") shielding material is preferably formed by heat and/or pressure treatment of a precursor material comprising microspheres of a uranium compound, such as uranium dioxide or uranium carbide, and a suitable binder. The PYRUC shielding material provides improved radiation shielding, thermal characteristic, cost and ease of use in comparison with other shielding materials. The shielding material can be used to form containment systems, container vessels, shielding structures, and containment storage areas, all of which can be used to house radioactive waste. The preferred shielding system is in the form of a container for storage, transportation, and disposal of radioactive waste. In addition, improved methods for preparing uranium dioxide and uranium carbide microspheres for use in the radiation shielding materials are also provided.

Mirsky, Steven M. (Greenbelt, MD); Krill, Stephen J. (Arlington, VA); Murray, Alexander P. (Gaithersburg, MD)

2005-11-01T23:59:59.000Z

144

Solar cells incorporating light harvesting arrays  

DOE Patents (OSTI)

A solar cell incorporates a light harvesting array that comprises: (a) a first substrate comprising a first electrode; and (b) a layer of light harvesting rods electrically coupled to the first electrode, each of the light harvesting rods comprising a polymer of Formula I: X.sup.1.paren open-st.X.sup.m+1).sub.m (I) wherein m is at least 1, and may be from two, three or four to 20 or more; X.sup.1 is a charge separation group (and preferably a porphyrinic macrocycle, which may be one ligand of a double-decker sandwich compound) having an excited-state of energy equal to or lower than that of X.sup.2 ; and X.sup.2 through X.sup.m+1 are chromophores (and again are preferably porphyrinic macrocycles).

Lindsey, Jonathan S. (Raleigh, NC); Meyer, Gerald J. (Baltimore, MD)

2002-01-01T23:59:59.000Z

145

Radiation Shielding Materials and Containers Incorporating Same  

Science Conference Proceedings (OSTI)

An improved radiation shielding material and storage systems for radioactive materials incorporating the same. The PYRolytic Uranium Compound (''PYRUC'') shielding material is preferably formed by heat and/or pressure treatment of a precursor material comprising microspheres of a uranium compound, such as uranium dioxide or uranium carbide, and a suitable binder. The PYRUC shielding material provides improved radiation shielding, thermal characteristic, cost and ease of use in comparison with other shielding materials. The shielding material can be used to form containment systems, container vessels, shielding structures, and containment storage areas, all of which can be used to house radioactive waste. The preferred shielding system is in the form of a container for storage, transportation, and disposal of radioactive waste. In addition, improved methods for preparing uranium dioxide and uranium carbide microspheres for use in the radiation shielding materials are also provided.

Mirsky, Steven M.; Krill, Stephen J.; and Murray, Alexander P.

2005-11-01T23:59:59.000Z

146

Incorporating LCA tools in integrated simulation environments  

SciTech Connect

In this paper we address the issue of building data schema evolution in integrated simulation environments, as seen from the perspective of incorporating LCA tools within these environments. First we describe the key features of an integrated simulation environment designed for expandability, focusing on (a) the mechanism for the expansion of the integrated environment, and (b) its overall system architecture that allows processes and data to be added to the system without modifications or restructuring of existing code. We then focus on how the data schema allows the inclusion and maintenance of specialized construction objects bearing LCA data. Finally, we discuss various integration issues that arise from modeling capabilities and idiosyncrasies of individual simulation and analysis tools.

Pal, Vineeta; Papamichael, Konstantinos; Bourassa, Norman; Loffeld, John J.

2001-02-01T23:59:59.000Z

147

Radiation Shielding Materials and Containers Incorporating Same  

DOE Patents (OSTI)

An improved radiation shielding material and storage systems for radioactive materials incorporating the same. The PYRolytic Uranium Compound (''PYRUC'') shielding material is preferably formed by heat and/or pressure treatment of a precursor material comprising microspheres of a uranium compound, such as uranium dioxide or uranium carbide, and a suitable binder. The PYRUC shielding material provides improved radiation shielding, thermal characteristic, cost and ease of use in comparison with other shielding materials. The shielding material can be used to form containment systems, container vessels, shielding structures, and containment storage areas, all of which can be used to house radioactive waste. The preferred shielding system is in the form of a container for storage, transportation, and disposal of radioactive waste. In addition, improved methods for preparing uranium dioxide and uranium carbide microspheres for use in the radiation shielding materials are also provided.

Mirsky, Steven M.; Krill, Stephen J.; and Murray, Alexander P.

2005-11-01T23:59:59.000Z

148

Stick-Slip Sliding of Water Drops on Chemically Heterogeneous Surfaces  

E-Print Network (OSTI)

We present a comprehensive study of water drops sliding down chemically heterogeneous surfaces formed by a periodic pattern of alternating hydrophobic and hydrophilic stripes. Drops are found to undergo a stick-slip motion whose average speed is an order of magnitude smaller than that measured on a homogeneous surface having the same static contact angle. This motion is the result of the periodic deformations of the drop interface when crossing the stripes. Numerical simulations confirm this view and are used to elucidate the principles underlying the experimental observations.

Silvia Varagnolo; Davide Ferraro; Paolo Fantinel; Matteo Pierno; Giampaolo Mistura; Giorgio Amati; Luca Biferale; Mauro Sbragaglia

2013-05-06T23:59:59.000Z

149

Proposed observations of gravity waves from the early Universe via "Millikan oil drops"  

E-Print Network (OSTI)

Pairs of Planck-mass drops of superfluid helium coated by electrons (i.e., ``Millikan oil drops''), when levitated in a superconducting magnetic trap, can be efficient quantum transducers between electromagnetic (EM) and gravitational (GR) radiation. This leads to the possibility of a Hertz-like experiment, in which EM waves are converted at the source into GR waves, and then back-converted at the receiver from GR waves back into EM waves. Detection of the gravity-wave analog of the cosmic microwave background using these drops can discriminate between various theories of the early Universe.

R. Y. Chiao

2006-06-28T23:59:59.000Z

150

Proposed observations of gravity waves from the early Universe via "Millikan oil drops"  

E-Print Network (OSTI)

Pairs of Planck-mass drops of superfluid helium coated by electrons (i.e., ``Millikan oil drops''), when levitated in a superconducting magnetic trap, can be efficient quantum transducers between electromagnetic (EM) and gravitational (GR) radiation. This leads to the possibility of a Hertz-like experiment, in which EM waves are converted at the source into GR waves, and then back-converted at the receiver from GR waves back into EM waves. Detection of the gravity-wave analog of the cosmic microwave background using these drops can discriminate between various theories of the early Universe.

Chiao, R Y

2006-01-01T23:59:59.000Z

151

Tests of Four PT-415 Coolers Installed in the Drop-in Mode  

DOE Green Energy (OSTI)

The superconducting magnets and absorbers for MICE will be cooled using PT415 pulse tube coolers. The cooler 2nd stage will be connected to magnets and the absorbers through a helium or hydrogen re-condensing system. It was proposed that the coolers be connected to the magnets in such a way that the cooler can be easily installed and removed, which permits the magnets to be shipped without the coolers. The drop-in mode requires that the cooler 1st stage be well connected to the magnet shields and leads through a low temperature drop demountable connection. The results of the PT415 drop-in cooler tests are presented.

Green, Michael A.; Wang, S.T.

2008-07-08T23:59:59.000Z

152

Blasting detonators incorporating semiconductor bridge technology  

SciTech Connect

The enormity of the coal mine and extraction industries in Russia and the obvious need in both Russia and the US for cost savings and enhanced safety in those industries suggests that joint studies and research would be of mutual benefit. The author suggests that mine sites and well platforms in Russia offer an excellent opportunity for the testing of Sandia`s precise time-delay semiconductor bridge detonators, with the potential for commercialization of the detonators for Russian and other world markets by both US and Russian companies. Sandia`s semiconductor bridge is generating interest among the blasting, mining and perforation industries. The semiconductor bridge is approximately 100 microns long, 380 microns wide and 2 microns thick. The input energy required for semiconductor bridge ignition is one-tenth the energy required for conventional bridgewire devices. Because semiconductor bridge processing is compatible with other microcircuit processing, timing and logic circuits can be incorporated onto the chip with the bridge. These circuits can provide for the precise timing demanded for cast effecting blasting. Indeed tests by Martin Marietta and computer studies by Sandia have shown that such precise timing provides for more uniform rock fragmentation, less fly rock, reduce4d ground shock, fewer ground contaminants and less dust. Cost studies have revealed that the use of precisely timed semiconductor bridges can provide a savings of $200,000 per site per year. In addition to Russia`s vast mineral resources, the Russian Mining Institute outside Moscow has had significant programs in rock fragmentation for many years. He anticipated that collaborative studies by the Institute and Sandia`s modellers would be a valuable resource for field studies.

Bickes, R.W. Jr.

1994-05-01T23:59:59.000Z

153

Truman's decision to drop the bomb to be discussed at 70th anniversary  

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

70th anniversary lecture July 10 about Truman, bomb 70th anniversary lecture July 10 about Truman, bomb Truman's decision to drop the bomb to be discussed at 70th anniversary lecture July 10 Noel Pugach will discuss Truman's decision to drop atomic bombs on Japanese cities and explain how and why he made it July 3, 2013 70th anniversary lecture July 10 about Truman, bomb Noel Pugach will discuss Truman's decision to drop atomic bombs on Japanese cities and explain how and why he made it Contact Nick Njegomir Communications Office (505) 667-5679 Email "Harry S. Truman considered the use of the atomic bomb on Japan among the most important and consequential actions of his presidency. Historians and journalists have concurred in that judgment, though some have condemned it," Pugach said. Truman's decision to drop the bomb to be discussed at 70th anniversary

154

B61-12 Life Extension Program Radar Drop Tests Completed Successfully |  

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

B61-12 Life Extension Program Radar Drop Tests Completed Successfully | B61-12 Life Extension Program Radar Drop Tests Completed Successfully | 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 > B61-12 Life Extension Program Radar Drop Tests ... Press Release B61-12 Life Extension Program Radar Drop Tests Completed Successfully

155

Radiative Impacts on the Growth of Drops within Simulated Marine Stratocumulus. Part I: Maximum Solar Heating  

Science Conference Proceedings (OSTI)

The effects of solar heating and infrared cooling on the vapor depositional growth of cloud drops, and hence the potential for collection enhancement, is investigated. Large eddy simulation (LES) of marine stratocumulus is used to generate 600 ...

Christopher M. Hartman; Jerry Y. Harrington

2005-07-01T23:59:59.000Z

156

Expanded Eligibility, Drop-in Care, and Improved Nutrition Program at Child  

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

Expanded Eligibility, Drop-in Care, and Expanded Eligibility, Drop-in Care, and Improved Nutrition Program at Child Development Center The Lab's Child Development Center (CDC) provides Brookhaven Science Associates (BSA) employees a top-rated and convenient onsite childcare option. Now the CDC is announcing three new program changes and improvements for BSA families. 1. Expanded Eligibility: The CDC is opening its doors to the nieces, nephews, and grandchildren of BSA employees. Spots are available for most age groups. Contact the CDC at Ext. 7416 or email brookhaven@brighthorizons.com to arrange a tour. 2. Drop-in Care: A totally new program at the CDC. The drop-in care program allows families to access high-quality childcare on an as-needed basis for

157

Characterization of Vertical Velocity and Drop Size Distribution Parameters in Widespread Precipitation at ARM Facilities  

Science Conference Proceedings (OSTI)

Extended, high-resolution measurements of vertical air motion and median volume drop diameter D0 in widespread precipitation from three diverse Atmospheric Radiation Measurement Program (ARM) locations [Lamont, Oklahoma, Southern Great Plains site ...

Scott E. Giangrande; Edward P. Luke; Pavlos Kollias

2012-02-01T23:59:59.000Z

158

Very Early Formation of Big, Liquid Drops Revealed by ZDR in Continental Cumulus  

Science Conference Proceedings (OSTI)

Examination of the early radar echo histories of several vigorous, cumulus clouds in northeast Colorado and northwest Kansas, with sensitive, dual-polarization radar, reveals the formation of millimeter-sized water drops at about the same time ...

Charles A. Knight

2006-07-01T23:59:59.000Z

159

Characteristics of Radar-Identified Big Drop Zones in Swiss Hailstorms  

Science Conference Proceedings (OSTI)

The characteristics of the so-called radar-identified big drop zones (rBDZ) have been investigated. The study employs radar observations of several thunderstorms and simultaneous microphysical and vertical wind measurements with a penetrating T-...

Albert Waldvogel; Laszlo Klein; Dennis J. Musil; Paul L. Smith

1987-08-01T23:59:59.000Z

160

An Evaluation of a Drop DistributionBased Polarimetric Radar Rainfall Estimator  

Science Conference Proceedings (OSTI)

A method for estimating the governing parameters of gamma drop size distributions (DSDs) and associated rainfall rates from polarimetric radar measurements at the S band is examined. The technique uses radar reflectivity at horizontal ...

Edward A. Brandes; Guifu Zhang; J. Vivekanandan

2003-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "hughes incorporated dropped" 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

Heat transfer and pressure drop for air flow through enhanced passages. Final report  

SciTech Connect

An extensive experimental investigation was carried out to determine the pressure drop and heat transfer characteristics for laminar, transitional and turbulent flow of air through a smooth passage and twenty-three enhanced passages. The internal surfaces of all enhanced passages had spirally shaped geometries; these included fluted, finned/ribbed and indented surfaces. The Reynolds number (Re) was varied between 400 and 50000. The effect of heat transfer (wall cooling or fluid heating) on pressure drop is most significant within the transition region; the recorded pressure drop with heat transfer is much higher than that without heat transfer. The magnitude of this effect depends markedly on the average surface temperature and, to a lesser extent, on the geometric characteristics of the enhanced surfaces. When the pressure drop data are reduced as values of the Fanning friction factor(f), the results are about the same with and without heat transfer for turbulent flow, with moderate differences in the laminar and transition regions.

Obot, N.T.; Esen, E.B.

1992-06-01T23:59:59.000Z

162

Heat transfer and pressure drop for air flow through enhanced passages  

SciTech Connect

An extensive experimental investigation was carried out to determine the pressure drop and heat transfer characteristics for laminar, transitional and turbulent flow of air through a smooth passage and twenty-three enhanced passages. The internal surfaces of all enhanced passages had spirally shaped geometries; these included fluted, finned/ribbed and indented surfaces. The Reynolds number (Re) was varied between 400 and 50000. The effect of heat transfer (wall cooling or fluid heating) on pressure drop is most significant within the transition region; the recorded pressure drop with heat transfer is much higher than that without heat transfer. The magnitude of this effect depends markedly on the average surface temperature and, to a lesser extent, on the geometric characteristics of the enhanced surfaces. When the pressure drop data are reduced as values of the Fanning friction factor(f), the results are about the same with and without heat transfer for turbulent flow, with moderate differences in the laminar and transition regions.

Obot, N.T.; Esen, E.B.

1992-06-01T23:59:59.000Z

163

An Example of Supercooled Drizzle Drops Formed through a Collision-Coalescence Process  

Science Conference Proceedings (OSTI)

The microphysics associated with observations of supercooled drizzle drops, which formed through a condensation and collision-coalescence process, are reported and discussed. The growth environment was an 1100-m-thick stratiform cloud with cloud-...

Stewart G. Cober; J. Walter Strapp; George A. Isaac

1996-12-01T23:59:59.000Z

164

The influence of return bends on the downstream pressure drop and condensation heat transfer in tubes  

E-Print Network (OSTI)

The influence of return bends on the downstream pressure drop and heat transfer coefficient of condensing refrigerant R-12 was studied experimentally. Flow patterns in glass return bends of 1/2 to 1 in. radius and 0.315 ...

Traviss, Donald P.

1971-01-01T23:59:59.000Z

165

Intercomparison of Instruments used for Measurement of Cloud Drop Concentration and Size Distribution  

Science Conference Proceedings (OSTI)

Measurements of drop concentration and size distribution with the Clague droplet gun and the Forward Scattering Spectrometer Probe in 21 cumulus clouds on five days show no evidence of systematic differences between the two instruments. Though ...

S. C. Mossop

1983-03-01T23:59:59.000Z

166

Evaluating Light Rain Drop Size Estimates from Multi-Wavelength Micropulse Lidar Network Profiling  

Science Conference Proceedings (OSTI)

We investigate multi-wavelength retrievals of median equivolumetric drop diameter, D0, suitable for drizzle and light rain, through collocated 355/527 nm Micro Pulse Lidar NETwork (MPLNET) observations collected during precipitation occurring 9 ...

Simone Lolli; Ellsworth J. Welton; James. R. Campbell

167

Characterization of Aircraft Icing Environments with Supercooled Large Drops for Application to Commercial Aircraft Certification  

Science Conference Proceedings (OSTI)

Observations of aircraft icing environments that included supercooled large drops (SLD) greater than 100 ?m in diameter have been analyzed. The observations were collected by instrumented research aircraft from 134 flights during six field ...

Stewart G. Cober; George A. Isaac

2012-02-01T23:59:59.000Z

168

Drop Formation and Breakup of Low Viscosity Elastic Fluids: Effects of Molecular Weight and Concentration  

E-Print Network (OSTI)

The dynamics of drop formation and pinch-off have been investigated for a series of low viscosity elastic fluids possessing similar shear viscosities, but differing substantially in elastic properties. On initial approach ...

Tirtaatmadja, Viyada

2007-01-23T23:59:59.000Z

169

Heat transfer to impacting drops and post critical heat flux dispersed flow  

E-Print Network (OSTI)

Heat transfer to drops impacting on a hot surface is examined in context of dispersions of flowing, boiling fluids. The liquid contribution to heat transfer from a hot tube to a two-phase dispersion is formulated in terms ...

Kendall, Gail E.

1978-01-01T23:59:59.000Z

170

A Probabilistic View on the Rain Drop Size Distribution Modeling: a Physical Interpretation of Rain Microphysics  

Science Conference Proceedings (OSTI)

The Rain Drop Size Distribution (RDSD) is defined as the relative frequency of raindrops per given diameter in a volume. This paper describes a mathematically-consistent modeling of the RDSD drawing on probability theory. It is shown that this ...

Francisco J. Tapiador; Ziad S. Haddad; Joe Turk

171

Functional Fits to Some Observed Drop Size Distributions and Parameterization of Rain  

Science Conference Proceedings (OSTI)

A data sample of optical spectrometer measurements that were obtained in two tropical cyclones is analyzed. The resultant drop size distributions are normalized and their shape is found to exhibit some curvature-departure from exponentiality. ...

Paul T. Willis

1984-05-01T23:59:59.000Z

172

A Simple Perturbation Model for the Electrostatic Shape of Falling Drops  

Science Conference Proceedings (OSTI)

A perturbation model for the shape of falling drops in the presence of electric fields and charges was developed by extension of previous methods that includes aerodynamic effects in the pressure balance equation of Laplace. Use of a consistent ...

Kenneth V. Beard; James Q. Feng; Catherine Chuang

1989-08-01T23:59:59.000Z

173

Laser capillary spectrophotometric acquisition of bivariate drop size and concentration data for liquid-liquid dispersion  

DOE Patents (OSTI)

A laser capillary spectrophotometric technique measures real time or near real time bivariate drop size and concentration distribution for a reactive liquid-liquid dispersion system. The dispersion is drawn into a precision-bore glass capillary and an appropriate light source is used to distinguish the aqueous phase from slugs of the organic phase at two points along the capillary whose separation is precisely known. The suction velocity is measured, as is the length of each slug from which the drop free diameter is calculated. For each drop, the absorptivity at a given wavelength is related to the molar concentration of a solute of interest, and the concentration of given drops of the organic phase is derived from pulse heights of the detected light. This technique permits on-line monitoring and control of liquid-liquid dispersion processes. 17 figures.

Tavlarides, L.L.; Bae, J.H.

1991-12-24T23:59:59.000Z

174

Modeling the Variability of Drop Size Distributions in Space and Time  

Science Conference Proceedings (OSTI)

The information on the time variability of drop size distributions (DSDs) as seen by a disdrometer is used to illustrate the structure of uncertainty in radar estimates of precipitation. Based on this, a method to generate the spacetime ...

Gyu Won Lee; Alan W. Seed; Isztar Zawadzki

2007-06-01T23:59:59.000Z

175

Another Look at the Influence of Absorbing Aerosols in Drops on Cloud Absorption: Large Aerosols  

Science Conference Proceedings (OSTI)

Since as early as 1969, solar absorbing aerosols inside of cloud drops have been suggested to influence cloud radiative properties. The absorbing aerosols were invoked to help explain two anomalies: 1) the maximum visible albedo of thick ...

Carynelisa Erlick; Dana Schlesinger

2008-02-01T23:59:59.000Z

176

The Bias in Moment Estimators for Parameters of Drop Size Distribution Functions: Sampling from Exponential Distributions  

Science Conference Proceedings (OSTI)

The moment estimators frequently used to estimate parameters for drop size distribution (DSD) functions being fitted to observed raindrop size distributions are biased. Consequently, the fitted functions often do not represent well either the ...

Paul L. Smith; Donna V. Kliche

2005-08-01T23:59:59.000Z

177

Kinetics of Cloud Drop Formation and Its Parameterization for Cloud and Climate Models  

Science Conference Proceedings (OSTI)

To study the kinetics of drop nucleation in clouds, the integrodifferential equation for integral water supersaturation in cloud is derived and analyzed. Solving the supersaturation equation with an algebraic form of the cloud condensation ...

Vitaly I. Khvorostyanov; Judith A. Curry

2008-09-01T23:59:59.000Z

178

Jet Drops Produced by Bubbles Bursting at the Surface of Seawater  

Science Conference Proceedings (OSTI)

Several empirical formulas were reported to describe the production of jet drops by bubbles bursting at the surface of seawater; they were, however, based on scanty data. Recent observations of Spiel have provided new data for intermediate-size ...

Jin Wu

2002-11-01T23:59:59.000Z

179

Vaporization modeling of petroleum-biofuel drops using a hybrid multi-component approach  

Science Conference Proceedings (OSTI)

Numerical modeling of the vaporization characteristics of multi-component fuel mixtures is performed in this study. The fuel mixtures studied include those of binary components, biodiesel, diesel-biodiesel, and gasoline-ethanol. The use of biofuels has become increasingly important for reasons of environmental sustainability. Biofuels are often blended with petroleum fuels, and the detailed understanding of the vaporization process is essential to designing a clean and efficient combustion system. In this study, a hybrid vaporization model is developed that uses continuous thermodynamics to describe petroleum fuels and discrete components to represent biofuels. The model is validated using the experimental data of n-heptane, n-heptane-n-decane mixture, and biodiesel. Since biodiesel properties are not universal due to the variation in feedstock, methods for predicting biodiesel properties based on the five dominant fatty acid components are introduced. Good levels of agreement in the predicted and measured drop size histories are obtained. Furthermore, in modeling the diesel-biodiesel drop, results show that the drop lifetime increases with the biodiesel concentration in the blend. During vaporization, only the lighter components of diesel fuel vaporize at the beginning. Biodiesel components do not vaporize until some time during the vaporization process. On the other hand, results of gasoline-ethanol drops indicate that both fuels start to vaporize once the process begins. At the beginning, the lighter components of gasoline have a slightly higher vaporization rate than ethanol. After a certain time, ethanol vaporizes faster than the remaining gasoline components. At the end, the drop reduces to a regular gasoline drop with heavier components. Overall, the drop lifetime increases as the concentration of ethanol increases in the drop due to the higher latent heat. (author)

Zhang, Lei; Kong, Song-Charng [Department of Mechanical Engineering, Iowa State University, 2025 Black Engineering Building, Ames, IA 50011 (United States)

2010-11-15T23:59:59.000Z

180

Deuterium incorporation in biomass cell wall components by NMR analysis  

SciTech Connect

A commercially available deuterated kale sample was analyzed for deuterium incorporation by ionic liquid solution 2H and 1H nuclear magnetic resonance (NMR). This protocol was found to effectively measure the percent deuterium incorporation at 33%, comparable to the 31% value determined by combustion. The solution NMR technique also suggested by a qualitative analysis that deuterium is preferentially incorporated into the carbohydrate components of the kale sample.

Foston, Marcus B [ORNL; McGaughey, Joseph [ORNL; O'Neill, Hugh Michael [ORNL; Evans, Barbara R [ORNL; Ragauskas, Arthur J [ORNL

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hughes incorporated dropped" 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

Energy Efficient Electrochromic Windows Incorporating Ionic Liquids  

SciTech Connect

One approach to increasing the energy efficiency of windows is to control the amount of solar radiation transmitted through a window by using electrochromic technology. What is unique about this project is that the electrochromic is based on the reduction/oxidation reactions of cathodic and anodic organic semi-conducting polymers using room temperature ionic liquids as ion transport electrolytes. It is believed that these types of coatings would be a lower cost alternative to traditional all inorganic thin film based electrochromic technologies. Although there are patents1 based on the proposed technology, it has never been reduced to practice and thoroughly evaluated (i.e. durability and performance) in a window application. We demonstrate that by using organic semi-conductive polymers, specific bands of the solar spectrum (specifically visible and near infrared) can be targeted for electrochemical variable transmittance responsiveness. In addition, when the technology is incorporated into an insulating glass unit, the energy parameters such as the solar heat gain coefficient and the light to solar gain ratio are improved over that of a typical insulating glass unit comprised of glass with a low emissivity coating. A minimum of {approx}0.02 quads of energy savings per year with a reduction of carbon emissions for electricity of {approx}320 MKg/yr benefit is achieved over that of a typical insulating glass unit including a double silver low-E coating. Note that these values include a penalty in the heating season. If this penalty is removed (i.e. in southern climates or commercial structures where cooling is predominate year-round) a maximum energy savings of {approx}0.05 quad per year and {approx}801 MKg/yr can be achieved over that of a typical insulating glass unit including a double silver low-E coating. In its current state, the technology is not durable enough for an exterior window application. The primary downfall is that the redox chemistry fails to recover to a bleached state upon exposure to heat and solar radiation while being cycled over time from the bleached to the dark state. Most likely the polymers are undergoing degradation reactions which are accelerated by heat and solar exposure while in either the reduced or oxidized states and the performance of the polymers is greatly reduced over time. For this technology to succeed in an exterior window application, there needs to be more work done to understand the degradation of the polymers under real-life application conditions such as elevated temperatures and solar exposure so that recommendations for improvements in to the overall system can be made. This will be the key to utilizing this type of technology in any future real-life applications.

Cheri Boykin; James Finley; Donald Anthony; Julianna Knowles; Richard Markovic; Michael Buchanan; Mary Ann Fuhry; Lisa Perrine

2008-11-30T23:59:59.000Z

182

Formation and Incorporation Energies of Fission Gases He, Xe, and ...  

Science Conference Proceedings (OSTI)

Presentation Title, Formation and Incorporation Energies of Fission Gases He, Xe , ... nuclear fuels are bcc alloys of uranium that swell under fission conditions,...

183

Glass Plates under Micro-indentation Incorporation in Glass Ionomer  

Science Conference Proceedings (OSTI)

Effects of nanocrystalline calcium de?cient hydroxyapatite gnCDHAl incorporation in glass ..... K., Nishino, M., 2003. Toughness, bonding and ?uoride release.

184

STATEMENT OF CONSIDERATIONS REQUEST BY SOLAR TURBINES INCORPORATED...  

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

a significantly improved combustion system for its Mercury 50 advanced industrial gas turbine by selectively incorporating advanced alloys, coatings, and composite and...

185

REQUEST BY SOLAR TURBINES INCORPORATED FOR AN ADVANCE WAIVER...  

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

SOLAR TURBINES INCORPORATED FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN RIGHTS IN SUBJECT INVENTIONS MADE IN THE COURSE OF OR UNDER DEPARTMENT OF ENERGY COOPERATIVE AGREEMENT NO....

186

Incorporating Genomics and Bioinformatics across the Life Sciences Curriculum  

E-Print Network (OSTI)

Page Incorporating Genomics and Bioinformatics across the2007) Discovering Genomics, Proteomics, and Bioinformatics,2003) Public access for teaching genomics, proteomics, and

Ditty, Jayna L.

2012-01-01T23:59:59.000Z

187

TN-68 Spent Fuel Transport Cask Analytical Evaluation for Drop Events  

SciTech Connect

The U.S. Nuclear Regulatory Commission (NRC) is responsible for licensing commercial spent nuclear fuel transported in casks certified by NRC under the Code of Federal Regulations (10 CFR), Title 10, Part 71 [1]. Both the International Atomic Energy Agency regulations for transporting radioactive materials [2, paragraph 727], and 10 CFR 71.73 require casks to be evaluated for hypothetical accident conditions, which includes a 9-meter (m) (30-ft) drop-impact event onto a flat, essentially unyielding, horizontal surface, in the most damaging orientation. This paper examines the behavior of one of the NRC certified transportation casks, the TN-68 [3], for drop-impact events. The specific area examined is the behavior of the bolted connections in the cask body and the closure lid, which are significantly loaded during the hypothetical drop-impact event. Analytical work to evaluate the NRC-certified TN-68 spent fuel transport cask [3] for a 9-m (30-ft) drop-impact event on a flat, unyielding, horizontal surface, was performed using the ANSYS [4] and LS DYNA [5] finite-element analysis codes. The models were sufficiently detailed, in the areas of bolt closure interfaces and containment boundaries, to evaluate the structural integrity of the bolted connections under 9-m (30-ft) free-drop hypothetical accident conditions, as specified in 10 CFR 71.73. Evaluation of the cask for puncture, caused by a free drop through a distance of 1-m (40-in.) onto a mild steel bar mounted on a flat, essentially unyielding, horizontal surface, required by 10 CFR 71.73, was not included in the current work, and will have to be addressed in the future. Based on the analyses performed to date, it is concluded that, even though brief separation of the flange and the lid surfaces may occur under some conditions, the seals would close at the end of the drop events, because the materials remain elastic during the duration of the event.

Shah, M. J.; Klymyshyn, Nicholas A.; Adkins, Harold E.; Koeppel, Brian J.

2007-03-30T23:59:59.000Z

188

Effect of bed pressure drop on performance of a CFB boiler  

Science Conference Proceedings (OSTI)

The effect of bed pressure drop and bed inventory on the performances of a circulating fluidized bed (CFB) boiler was studied. By using the state specification design theory, the fluidization state of the gas-solids flow in the furnace of conventional CFB boilers was reconstructed to operate at a much lower bed pressure drop by reducing bed inventory and control bed quality. Through theoretical analysis, it was suggested that there would exist a theoretical optimal value of bed pressure drop, around which the boiler operation can achieve the maximal combustion efficiency and with significant reduction of the wear of the heating surface and fan energy consumption. The analysis was validated by field tests carried out in a 75 t/h CFB boiler. At full boiler load, when bed pressure drop was reduced from 7.3 to 3.2 kPa, the height of the dense zone in the lower furnace decreased, but the solid suspension density profile in the upper furnace and solid flow rate were barely influenced. Consequently, the average heat transfer coefficient in the furnace was kept nearly the same and the furnace temperature increment was less than 17{sup o}C. It was also found that the carbon content in the fly ash decreased first with decreasing bed pressure drop and then increased with further increasing bed pressure drop. The turning point with minimal carbon content was referred to as the point with optimal bed pressure drop. For this boiler, at the optimum point the bed pressure was around 5.7 kPa with the overall excess air ratio of 1.06. When the boiler was operated around this optimal point, not only the combustion efficiency was improved, but also fan energy consumption and wear of heating surface were reduced. 23 refs., 6 figs., 4 tabs.

Hairui Yang; Hai Zhang; Shi Yang; Guangxi Yue; Jun Su; Zhiping Fu [Tsinghua University, Beijing (China). Department of Thermal Engineering

2009-05-15T23:59:59.000Z

189

Experimental investigation of ice slurry flow pressure drop in horizontal tubes  

SciTech Connect

Pressure drop behaviour of ice slurry based on ethanol-water mixture in circular horizontal tubes has been experimentally investigated. The secondary fluid was prepared by mixing ethyl alcohol and water to obtain initial alcohol concentration of 10.3% (initial freezing temperature -4.4 C). The pressure drop tests were conducted to cover laminar and slightly turbulent flow with ice mass fraction varying from 0% to 30% depending on test conditions. Results from flow tests reveal much higher pressure drop for higher ice concentrations and higher velocities in comparison to the single phase flow. However for ice concentrations of 15% and higher, certain velocity exists at which ice slurry pressure drop is same or even lower than for single phase flow. It seems that higher ice concentration delay flow pattern transition moment (from laminar to turbulent) toward higher velocities. In addition experimental results for pressure drop were compared to the analytical results, based on Poiseulle and Buckingham-Reiner models for laminar flow, Blasius, Darby and Melson, Dodge and Metzner, Steffe and Tomita for turbulent region and general correlation of Kitanovski which is valid for both flow regimes. For laminar flow and low buoyancy numbers Buckingham-Reiner method gives good agreement with experimental results while for turbulent flow best fit is provided with Dodge-Metzner and Tomita methods. Furthermore, for transport purposes it has been shown that ice mass fraction of 20% offers best ratio of ice slurry transport capability and required pumping power. (author)

Grozdek, Marino; Khodabandeh, Rahmatollah; Lundqvist, Per [Royal Institute of Technology, Department of Energy Technology, Division of Applied Thermodynamics and Refrigeration, Brinellvaegen 68, 10044 Stockholm (Sweden)

2009-01-15T23:59:59.000Z

190

Drop Test Results for the Combustion Engineering Model No. ABB-2901 Fuel Pellet Package  

SciTech Connect

The U.S. Nuclear Regulatory Commission (USNRC) contracted with the Packaging Review Group (PRG) at Lawrence Livermore National Laboratory (LLNL) to conduct a single, 30-ft shallow-angle drop test on the Combustion Engineering ABB-2901 drum-type shipping package. The purpose of the test was to determine if bolted-ring drum closures could fail during shallow-angle drops. The PRG at LLNL planned the test, and Defense Technologies Engineering Division (DTED) personnel from LLNL's Site-300 Test Group executed the plan. The test was conducted in November 2001 using the drop-tower facility at LLNL's Site 300. Two representatives from Westinghouse Electric Company in Columbia, South Carolina (WEC-SC); two USNRC staff members; and three PRG members from LLNL witnessed the preliminary test runs and the final test. The single test clearly demonstrated the vulnerability of the bolted-ring drum closure to shallow-angle drops-the test package's drum closure was easily and totally separated from the drum package. The results of the preliminary test runs and the 30-ft shallow-angle drop test offer valuable qualitative understandings of the shallow-angle impact.

Hafner, R S; Mok, G C; Hagler, L G

2004-04-23T23:59:59.000Z

191

Drop-in Biofuels Take Flight in Commerce City, Colorado | Department of  

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

Drop-in Biofuels Take Flight in Commerce City, Colorado Drop-in Biofuels Take Flight in Commerce City, Colorado Drop-in Biofuels Take Flight in Commerce City, Colorado December 8, 2011 - 12:47pm Addthis An aerial view of Rentech's Product Demonstration Unit (PDU) in Commerce City, Colorado. | Photo courtesy of Rentech. An aerial view of Rentech's Product Demonstration Unit (PDU) in Commerce City, Colorado. | Photo courtesy of Rentech. John Schueler John Schueler Former New Media Specialist, Office of Public Affairs Developing a robust, self-sustaining biofuels industry is key to our efforts to end U.S dependence on foreign oil and to ensure a secure energy future. A crucial step in advancing a domestic biofuels industry is to establish integrated biorefineries across the country. Biorefineries are similar to petroleum refineries in concept; however,

192

Better Buildings Challenge Partners Pledge 20 Percent Energy Drop By 2020 |  

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

Better Buildings Challenge Partners Pledge 20 Percent Energy Drop Better Buildings Challenge Partners Pledge 20 Percent Energy Drop By 2020 Better Buildings Challenge Partners Pledge 20 Percent Energy Drop By 2020 November 9, 2011 - 10:00am Addthis This is the Atlanta Better Buildings Challenge Breakout Session Panel with representatives from the City of Atlanta Office of Sustainability, Southface, the U.S. General Services Administration, and two Atlanta BBC partner organizations. | Photo courtesy of Fred Perry Photography This is the Atlanta Better Buildings Challenge Breakout Session Panel with representatives from the City of Atlanta Office of Sustainability, Southface, the U.S. General Services Administration, and two Atlanta BBC partner organizations. | Photo courtesy of Fred Perry Photography Maria Tikoff Vargas

193

New directions for gravity-wave physics via "Millikan oil drops"  

E-Print Network (OSTI)

Pairs of Planck-mass--scale drops of superfluid helium coated by electrons (i.e., "Millikan oil drops"), when levitated in a superconducting magnetic trap in the presence of strong magnetic fields and at low temperatures, can be efficient quantum transducers between electromagnetic (EM) and gravitational (GR) radiation. A Hertz-like experiment, in which EM waves are converted at the source into GR waves, and then back-converted at the receiver from GR waves back into EM waves, should be practical to perform. As a step in this direction, an experiment to measure the quadrupolar electromagnetic scattering cross-section of a pair of "Millikan oil drops" will be performed first.

Chiao, R Y

2006-01-01T23:59:59.000Z

194

Drop-in Biofuels Take Flight in Commerce City, Colorado | Department of  

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

Drop-in Biofuels Take Flight in Commerce City, Colorado Drop-in Biofuels Take Flight in Commerce City, Colorado Drop-in Biofuels Take Flight in Commerce City, Colorado December 8, 2011 - 12:47pm Addthis An aerial view of Rentech's Product Demonstration Unit (PDU) in Commerce City, Colorado. | Photo courtesy of Rentech. An aerial view of Rentech's Product Demonstration Unit (PDU) in Commerce City, Colorado. | Photo courtesy of Rentech. John Schueler John Schueler Former New Media Specialist, Office of Public Affairs Developing a robust, self-sustaining biofuels industry is key to our efforts to end U.S dependence on foreign oil and to ensure a secure energy future. A crucial step in advancing a domestic biofuels industry is to establish integrated biorefineries across the country. Biorefineries are similar to petroleum refineries in concept; however,

195

Fundamental Drop Dynamics and Mass Transfer Experiments to Support Solvent Extraction Modeling Efforts  

SciTech Connect

In support of the Nuclear Energy Advanced Modeling Simulation Safeguards and Separations (NEAMS SafeSep) program, the Idaho National Laboratory (INL) worked in collaboration with Los Alamos National Laboratory (LANL) to further a modeling effort designed to predict mass transfer behavior for selected metal species between individual dispersed drops and a continuous phase in a two phase liquid-liquid extraction (LLE) system. The purpose of the model is to understand the fundamental processes of mass transfer that occur at the drop interface. This fundamental understanding can be extended to support modeling of larger LLE equipment such as mixer settlers, pulse columns, and centrifugal contactors. The work performed at the INL involved gathering the necessary experimental data to support the modeling effort. A custom experimental apparatus was designed and built for performing drop contact experiments to measure mass transfer coefficients as a function of contact time. A high speed digital camera was used in conjunction with the apparatus to measure size, shape, and velocity of the drops. In addition to drop data, the physical properties of the experimental fluids were measured to be used as input data for the model. Physical properties measurements included density, viscosity, surface tension and interfacial tension. Additionally, self diffusion coefficients for the selected metal species in each experimental solution were measured, and the distribution coefficient for the metal partitioning between phases was determined. At the completion of this work, the INL has determined the mass transfer coefficient and a velocity profile for drops rising by buoyancy through a continuous medium under a specific set of experimental conditions. Additionally, a complete set of experimentally determined fluid properties has been obtained. All data will be provided to LANL to support the modeling effort.

Kristi Christensen; Veronica Rutledge; Troy Garn

2011-09-01T23:59:59.000Z

196

Chemoembolization Decreases Drop-Off Risk of Hepatocellular Carcinoma Patients on the Liver Transplant List  

Science Conference Proceedings (OSTI)

Introduction: The drop-off risk for patients awaiting liver transplantation for hepatocellular carcinoma (HCC) is 22%. Transplant liver availability is expected to worsen, resulting in longer waiting times and increased drop-off rates. Our aim was to determine whether chemoembolization can decrease this risk. Patients and Methods: Eighty-seven consecutive HCC patients listed for liver transplant (Milan criteria) underwent statistical comparability adjustments using the propensity score (Wilcoxon, Fisher's, and chi-square tests). Forty-three nonchemoembolization patients and 22 chemoembolization patients were comparable for Child-Pugh and Model for End-Stage Liver Disease scores, tumor size and number, alpha fetoprotein (AFP) levels, and cause of cirrhosis. We calculated the risk of dropping off the transplant list by assigning a transplant time to those who dropped off (equal probability with patients who were on the list longer than the patient in question). The significance level was obtained by calculating the simulation distribution of the difference compared with the permutations of chemoembolization versus nonchemoembolization assignment of the patients. Kaplan-Meier estimators (log-rank test) were used to determine survival rates. Results: Median follow-up was 187 {+-} 110 weeks (range 38 to 435, date of diagnosis). The chemoembolization group had an 80% drop-off risk decrease (15% nonchemoembolization versus 3% chemoembolization, p = 0.04). Although survival was better for the chemoembolization group, it did not reach statistical significance. Two-year survival for the nonchemoembolization and chemoembolization group was 57.3% {+-} 7.1% and 76.0% {+-} 7.9%, respectively (p = 0.078). Conclusions: Chemoembolization appears to result in a significant decrease in the risk of dropping off liver transplant list for patients with HCC and results in a tendency toward longer survival.

Frangakis, Constantine [Johns Hopkins University, Department of Biostatistics, Bloomberg School of Public Health (United States); Geschwind, Jean-Francois; Kim, Daniel [Johns Hopkins University, Department of Vascular and Interventional Radiology (United States); Chen, Yong [Johns Hopkins University, Department of Biostatistics, Bloomberg School of Public Health (United States); Koteish, Ayman [Johns Hopkins University, Department of Transplant Hepatology (United States); Hong, Kelvin; Liapi, Eleni; Georgiades, Christos S., E-mail: g_christos@hotmail.com [Johns Hopkins University, Department of Vascular and Interventional Radiology (United States)

2011-12-15T23:59:59.000Z

197

Imbibition dynamics of nano-particulate ink-jet drops on micro-porous media  

E-Print Network (OSTI)

Imbibition dynamics of nano-particulate ink-jet drops on micro-porous media Hsiao, W.-K., Hoath, S. D., Martin, G. D., Hutchings, I. M., Chilton, N. B. and Jones, S., Proc Nanotech 2011 Conference, Boston, June 2011. Imbibition dynamics... of nano-particulate ink-jet drops on micro-porous media W.-K. Hsiao*, S. D. Hoath*, G. D. Martin*, I. M. Hutchings*, N. B. Chilton** and S. Jones** *Department of Engineering, University of Cambridge Cambridge CB3 0FS, United Kingdom, wkh26@cam...

Hsiao, W.-K.; Hoath, S.D.; Martin, G.D.; Hutchings, I.M.; Chilton, N.B.; Jones, S.

198

Influence of a local change of depth on the behavior of bouncing oil drops  

E-Print Network (OSTI)

The work of Couder \\textit{et al} (see also Bush \\textit{et al}) inspired consideration of the impact of a submerged obstacle, providing a local change of depth, on the behavior of oil drops in the bouncing regime. In the linked videos, we recreate some of their results for a drop bouncing on a uniform depth bath of the same liquid undergoing vertical oscillations just below the conditions for Faraday instability, and show a range of new behaviors associated with change of depth. This article accompanies a fluid dynamics video entered into the Gallery of Fluid Motion of the 66th Annual Meeting of the APS Division of Fluid Dynamics.

Carmigniani, Remi; Symon, Sean; McKeon, Beverley J

2013-01-01T23:59:59.000Z

199

New directions for gravity-wave physics via "Millikan oil drops"  

E-Print Network (OSTI)

Pairs of Planck-mass--scale drops of superfluid helium coated by electrons (i.e., "Millikan oil drops"), when levitated in the presence of strong magnetic fields and at low temperatures, can be efficient quantum transducers between electromagnetic (EM) and gravitational (GR) radiation. A Hertz-like experiment, in which EM waves are converted at the source into GR waves, and then back-converted at the receiver from GR waves back into EM waves, should be practical to perform. This would open up observations of the gravity-wave analog of the CMB from the extremely early Big Bang, and also communications directly through the interior of the Earth.

Raymond Y. Chiao

2006-10-29T23:59:59.000Z

200

"Millikan oil drops" as quantum transducers between electromagnetic and gravitational radiation  

E-Print Network (OSTI)

Pairs of Planck-mass-scale drops of superfluid helium coated by electrons (i.e., "Millikan oil drops"), when levitated in the presence of strong magnetic fields and at low temperatures, can be efficient quantum transducers between electromagnetic (EM) and gravitational (GR) radiation. A Hertz-like experiment, in which EM waves are converted at the source into GR waves, and then back-converted at the receiver from GR waves back into EM waves, should be practical to perform. This would open up observations of the gravity-wave analog of the Cosmic Microwave Background from the extremely early Big Bang, and also communications directly through the interior of the Earth.

Raymond Y. Chiao

2007-02-19T23:59:59.000Z

Note: This page contains sample records for the topic "hughes incorporated dropped" 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

"Millikan oil drops" as quantum transducers between electromagnetic and gravitational radiation  

E-Print Network (OSTI)

Pairs of Planck-mass-scale drops of superfluid helium coated by electrons (i.e., "Millikan oil drops"), when levitated in the presence of strong magnetic fields and at low temperatures, can be efficient quantum transducers between electromagnetic (EM) and gravitational (GR) radiation. A Hertz-like experiment, in which EM waves are converted at the source into GR waves, and then back-converted at the receiver from GR waves back into EM waves, should be practical to perform. This would open up observations of the gravity-wave analog of the Cosmic Microwave Background from the extremely early Big Bang, and also communications directly through the interior of the Earth.

Chiao, R Y

2007-01-01T23:59:59.000Z

202

Seismic and cask drop excitation evaluation of the tower shielding reactor  

SciTech Connect

During the current shutdown of the Tower Shielding Reactor II (TSR-II), analyses were performed to determine the effect of nearby cask drops on the structural and mechanical integrity of the reactor. This evaluation was then extended to include the effects of earthquakes. Several analytic models were developed to simulate the effects of earthquake and cask drop excitation. A coupled soil-structure model was developed. As a result of the analyses, several hardware modifications and enhancements were implemented to ensure reactor integrity during future operations. 6 figs.

Harris, S.P.; Stover, R.L.; Johnson, J.J.; Sumodobila, B.N. (EQE, Inc., San Francisco, CA (USA); Oak Ridge National Lab., TN (USA); EQE, Inc., San Francisco, CA (USA))

1989-01-01T23:59:59.000Z

203

Enhancing the soil organic matter pool through biomass incorporation.  

DOE Green Energy (OSTI)

A study was installed in the Upper Coastal Plain of South Carolina, USA, that sought to examine the impact of incorporating downed slash materials into subsoil layers on soil chemical and physical properties as compared with the effect of slash materials left on the soil surface. Baseline levels of slash were estimated by establishing transects within harvested stands and estimating the quantity of down wood and stumps. An equivalent quantity of biomass and two times the baseline levels were incorporated into subsurface soil layers by a CMI RS 500B reclaimer/stabilizer. Two sites were examined which differed in soil textural composition: sandy vs. clay. Site differences had no impact on machine productivity and machine costs were estimated at $US 521 ha-1 and $US 633 ha-1 on the ''sandy'' and ''clay'' sites, respectively. The feasibility of the CM1 for biomass incorporation is low due to high unit area costs but increased machine productivity would reduce costs and improve its potential. Biomass incorporation improved carbon and nutrient content of each site, especially on the sandy site. Slash levels had an impact on nutrient content but the differences were not statistically significant. For the sandy site, improvements in soil physical properties were evident in response to incorporation and machine planting operations. Bulk density and soil strength were reduced in response to biomass incorporation and tillage to levels that would not limit root production. The differences in soil physical response between incorporated treatments were minimal and not statistically significant.

Sanchez, Felipe, G.; Carter, Emily, A.; Klepac, John, F.

2003-06-11T23:59:59.000Z

204

Energy Security in Nova Scotia Larry Hughes  

E-Print Network (OSTI)

Governance Committee (EMGC) report listed 89 recommendations for changing the way the electricity. The recently proposed renewable energy standard (RES), Nova Scotia's version of RPS, has a 5 percent "new Norway to northern Europe and LNG to Spain and the U.K. are being touted as the means of helping

Hughes, Larry

205

Energy Security in Nova Scotia Larry Hughes  

E-Print Network (OSTI)

Ved March 30, 2007 Interest in the gas-to-liquid process (GTL) using Fischer-Tropsch reactors (F-T) has The Fischer Tropsch (F-T) synthesis was originally devel- oped in Germany in the 1920s by Franz Fischer into syngas and, then, Fischer-Tropsch synthesis of syngas into synthetic liquid fuels. A first plant

Hughes, Larry

206

Langston Hughes Elementary School Renewable Energy  

E-Print Network (OSTI)

_______________________________________ 24 3.1.2 Daylight _____________________________________________ 26 3.1.3 HVAC Systems-Test logistics. Gary Schmidt provided invaluable contributions in programming the survey and Mini-Test systems Support: The authors wish to thank Chris Hunt of City Visual Systems Ltd, at City College, London, for his

207

Medical, Dental & Vision Add/Drop Form Please return to: Postdoc Benefits Office, 3160 Porter Drive, Suite 250, Palo Alto, CA 94304-8443 or  

E-Print Network (OSTI)

Medical, Dental & Vision Add/Drop Form Please return to: Postdoc Benefits Office, 3160 Porter Drive Same Add Drop Medical EPO Medical PPO Dental PPO VSP Vision Postdoctoral Scholar Add Drop Medical EPO Medical PPO Dental PPO VSP Vision Spouse Domestic Partner Son Daughter Add Drop Medical EPO Medical PPO

Sonnenburg, Justin L.

208

Medical, Dental & Vision Add/Drop Form Please return to: Postdoc Benefits Office, 320 Panama Street, Bambi Modular, Stanford, CA 94305-  

E-Print Network (OSTI)

Medical, Dental & Vision Add/Drop Form Please return to: Postdoc Benefits Office, 320 Panama Street Same Add Drop Medical EPO Medical PPO Dental PPO VSP Vision Postdoctoral Scholar Add Drop Medical EPO Medical PPO Dental PPO VSP Vision Spouse Domestic Partner Son Daughter Add Drop Medical EPO Medical PPO

Kay, Mark A.

209

The representation of rainfall drop-size distribution and kinetic energy Hydrology and Earth System Sciences, 8(5), 10011007 (2004) EGU  

E-Print Network (OSTI)

The representation of rainfall drop-size distribution and kinetic energy 1001 Hydrology and Earth-size distribution and kinetic energy Neil I. Fox Department of Soil, Environmental and Atmospheric Sciences373 Mc component of drop velocity. Keywords: drop-size distribution, drop kinetic energy, soil erosion Introduction

Paris-Sud XI, Université de

210

Guidance: Incorporating EPA's Pollution Prevention Strategy into Environmental Reviews  

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

$'1 $'1 f%'1OIR A N Iv { JM ............................................... EiW'KRO>31ENTAL PROTECTIOX AGENCY OFF~E C)F FEI)ERAL ACTIVITIES Guidance on Incorporating EPA's Pollution Prevention Strategy ,' into EPA's Environmental Revielv Process The Office of Federal Activities (OFA) is issuing guidance which incorporates the Environmental Protection Agency (EPA) Pollution Prevention Strategy into the Agency's National Environmental Policy Act (NEPA) and Section 309 of the Clean Air Act review processes. Prevention To implement thePollution Act of 1990, this guidance focuses primarily upon influencing federal agencies' policies, practices, and regulatory functions to incorporate pollution prevention into their planning and decision-making. IMckzround

211

Technical Assistance to PDMA Punjab in Incorporating Climate Compatibility  

Open Energy Info (EERE)

Assistance to PDMA Punjab in Incorporating Climate Compatibility Assistance to PDMA Punjab in Incorporating Climate Compatibility Considerations into Reconstruction and Village Development Planning Jump to: navigation, search Name Technical Assistance to PDMA Punjab in Incorporating Climate Compatibility Considerations into Reconstruction and Village Development Planning Agency/Company /Organization Climate and Development Knowledge Network (CDKN), United Kingdom Department for International Development Partner Provincial Disaster Management Authority (PDMA), Government of Pakistan Sector Climate, Land Focus Area Renewable Energy, Economic Development, Energy Efficiency, Greenhouse Gas, Land Use Topics Adaptation, Finance, Low emission development planning, Policies/deployment programs Website http://cdkn.org/project/planni

212

Campaigns and incentive programs that incorporate ENERGY STAR | ENERGY STAR  

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

Campaigns and incentive programs that incorporate ENERGY STAR Campaigns and incentive programs that incorporate ENERGY STAR Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In this section Policies that specify the use of ENERGY STAR tools Campaigns and incentive programs that incorporate ENERGY STAR Lead by example Gather support Develop programs and policies Host a competition Use financing vehicles

213

Pakistan-Technical Assistance to PDMA Punjab in Incorporating Climate  

Open Energy Info (EERE)

Pakistan-Technical Assistance to PDMA Punjab in Incorporating Climate Pakistan-Technical Assistance to PDMA Punjab in Incorporating Climate Compatibility Considerations into Reconstruction and Village Development Planning Jump to: navigation, search Name Technical Assistance to PDMA Punjab in Incorporating Climate Compatibility Considerations into Reconstruction and Village Development Planning Agency/Company /Organization Climate and Development Knowledge Network (CDKN), United Kingdom Department for International Development Partner Provincial Disaster Management Authority (PDMA), Government of Pakistan Sector Climate, Land Focus Area Renewable Energy, Economic Development, Energy Efficiency, Greenhouse Gas, Land Use Topics Adaptation, Finance, Low emission development planning, Policies/deployment programs Website http://cdkn.org/project/planni

214

Incorporating Biodiversity Considerations into Environmental Impact Analysis under NEPA  

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

Incorporating Biodiversity Considerations Incorporating Biodiversity Considerations Into Environmental Impact Analysis Under the National Environmental Policy Act Incorporating Biodiversity Considerations Into Environmental Impact Analysis Under the National Environmental Policy Act CouncilonEnvironmental Quality Executive Officeof thePresident 722Jackson Place, NW Washington, DC 20503 January 1993 This report presents the results of consultations by the Council on Environmental Quality (CEQ) concerning the consideration of biological diversity in analyses prepared under the National Environmental Policy Act (NEPA). This report is intended to provide background on the emerging, complex subject of biodi- versity, outline some general concepts that underlie biological diversity analysis and man-

215

DOE Cites Bechtel National Incorporated for Price-Anderson Violations |  

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

Incorporated for Price-Anderson Incorporated for Price-Anderson Violations DOE Cites Bechtel National Incorporated for Price-Anderson Violations March 16, 2006 - 12:46pm Addthis WASHINGTON, DC - The Department of Energy (DOE) today notified Bechtel National Incorporated (BNI) that it will fine the company $198,000 for violations of the Department's nuclear safety requirements. BNI is the primary design and construction contractor for the Waste Treatment and Immobilization Plant (WTP). The Preliminary Notice of Violation (PNOV) issued today cited a series of violations that occurred during the design and construction of the WTP between May 2002 and September 2005. Violations include failure to abide by design codes documented in facility safety requirements, failure to abide by inspection requirements for waste processing vessels, failure to utilize

216

DOE Cites Bechtel National Incorporated for Price-Anderson Violations |  

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

Incorporated for Price-Anderson Incorporated for Price-Anderson Violations DOE Cites Bechtel National Incorporated for Price-Anderson Violations October 4, 2007 - 3:14pm Addthis WASHINGTON, DC - The U.S. Department of Energy (DOE) today notified Bechtel National Incorporated (BNI) that it will fine the company $165,000 for violations of the Department's nuclear safety requirements. BNI is the primary design and construction contractor for the Waste Treatment and Immobilization Plant (WTP) located at the Hanford Site in Richland, Washington. The Preliminary Notice of Violation (PNOV) issued today cited a series of violations that occurred during the design and construction of the WTP between October 2001 and February 2006. Violations include failures in quality processes to control design changes, and to ensure vendor-supplied

217

Stakeholder Engagement and Outreach: Incorporating Wind in Cap and Trade  

Wind Powering America (EERE)

Incorporating Wind in Cap and Trade Programs Incorporating Wind in Cap and Trade Programs There are various methods of allocating allowances to renewable energy sources under cap and trade programs, such as renewable energy set asides and output-based approaches. Background materials and presentations from the January 12, 2006 Webcast below, provide information on why it is important to include wind and other renewables in cap and trade programs and how best to incorporate them. Implications of Carbon Regulation for Green Power Markets Bird, L.; Holt, E.; Carroll, G. National Renewable Energy Laboratory, April 2007. January 12, 2006 Webcast: Incorporating Renewable Energy under the Clean Air Interstate Rule (CAIR) Co-Sponsors American Wind Energy Association (AWEA) U.S. DOE/NREL Wind Powering America

218

Incorporating Non-energy Benefits into Energy Savings Performance Contracts  

E-Print Network (OSTI)

the purposes of this paper, non-energy benefits are definedthat Incorporate Non-energy Benefits This paper identified aPaper presented to American Council for an Energy Efficient

Larsen, Peter

2013-01-01T23:59:59.000Z

219

National Policy Assurances to be Incorporated as Award Terms | Department  

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

National Policy Assurances to be Incorporated as Award Terms National Policy Assurances to be Incorporated as Award Terms National Policy Assurances to be Incorporated as Award Terms The following are the National Policy Assurances which are incorporated by reference as Award Terms at time of Award. The National Policy Assurances which apply to the award are those in effect on the date of award. For example, the August 2008 version applies to all awards from August 2008 through the present. National_Policy_Assurances-September_ 2011.pdf National Policy Assurances - August 2008 National Policy Assurances - September 2007 National Policy Assurances - May 2006 National Policy Assurances - July 2005 National Policy Assurances - October 2004 More Documents & Publications Microsoft Word - NationalPolicyAssurances5-06.doc

220

Synthesis of Monolithic Iron Incorporated Silica Aerogels by Ambient ...  

Science Conference Proceedings (OSTI)

With the Fe to Si molar ratio not exceeding 0.10, the bulk density of iron incorporated silica aerogels increased to 0.55g/cm3, while the porosity reduced to 76%...

Note: This page contains sample records for the topic "hughes incorporated dropped" 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.


221

Incorporating software architecture in the computer science curriculum  

Science Conference Proceedings (OSTI)

This workshop introduces the concepts of software architecture and how to incorporate these concepts into the computer science and software engineering curriculum. Participants will learn techniques used in industry to specify quality attributes critical ...

Martin L. Barrett; Ayse Bener; Steve Chenoweth

2011-05-01T23:59:59.000Z

222

Effects of Incorporation of Silica and Zirconia Nanoparticles on the ...  

Science Conference Proceedings (OSTI)

Composites with weak interface showed essentially no change in Tg and damping or even ... On the other hand, incorporation of the particles did not alter the thermal ... of a Novel Hybrid Bimodal Network Elastomer with Inorganic Cross

223

The Intrinsic Structure of Optic Flow Incorporating Measurement Duality  

Science Conference Proceedings (OSTI)

The purpose of this article is to define optic flow for scalar and density images without using a priori knowledge other than its defining conservation principle, and to incorporate measurement ...

Luc Florack; Wiro Niessen; Mads Nielsen

1998-05-01T23:59:59.000Z

224

ISO New England, Incorporated Smart Grid Project | Open Energy Information  

Open Energy Info (EERE)

Incorporated Smart Grid Project Incorporated Smart Grid Project Jump to: navigation, search Project Lead ISO New England, Incorporated Country United States Headquarters Location Holyoke, Massachusetts Additional Benefit Places Connecticut, Maine, New Hampshire, Rhode Island, Vermont Recovery Act Funding $7993714 Total Project Value $18087427 Coverage Area Coverage Map: ISO New England, Incorporated Smart Grid Project Coordinates 42.2042586°, -72.6162009° 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":[]}

225

Single and Multiple Heteroatom Incorporation in MFI Zeolites  

E-Print Network (OSTI)

Zeolites are crystalline inorganic solids that are industrially used for adsorption, ion exchange and catalysis. As catalysts, they have been particularly successful in the hydrocarbon processing industry due to their unique activities and selectivities. Zeolites are mainly used in acid catalyzed reactions, but their catalytic functionality can be diversified through the incorporation of elements that are traditionally not part of their framework. The incorporation of various elements has been studied in recent decades resulting in zeolites with potential to perform different chemistries or improve catalytic performance in existing ones. However, many of these investigations have been conducted under conditions that do not necessarily represent realistic scenarios for industrial implementation. The main objective of this dissertation was to study the single and simultaneous framework incorporation of tin, boron, germanium and aluminum in MFI zeolites under synthesis conditions that are more in line with industrial preparations. These include the use of mixtures in alkaline media with high concentration of precursor species. The interest on tin resides on its potential for Lewis acid catalysis, while boron and germanium have potential for modulating acid strength and enhancing catalytic properties respectively. Three specific systems were studied: MFI zeolites with simultaneous incorporation of germanium and aluminum (i.e. Ge-Al-MFI zeolites), MFI zeolites with simultaneous incorporation of germanium and boron (i.e. B-Ge-MFI zeolites), and MFI zeolites with single incorporation of tin (i.e. Sn-MFI zeolites). Systematic synthesis experiments were coupled with extensive analytical characterization in order to assess how element incorporation and zeolite physicochemical properties are affected by synthesis conditions. In addition, the catalytic activity of Sn-MFI zeolites for the hydroxylation of phenol was studied. The general conclusion from this work is that framework incorporation of these elements is highly influenced by pH, mixture composition and the presence of sodium cations. Sodium cations are commonly included in industrial preparations through the use of sodium hydroxide, but they were found to negatively affect framework incorporation due to a tendency to form stable extra-framework impurities with the heteroatoms, especially germanium and tin. pH and mixture composition are particularly influential in controlling germanium and boron incorporation, while the incorporation of tin, its coordination environment and catalytic performance were found to depend on synthesis conditions as well as post-synthesis treatments.

Garcia Vargas, Nataly

2012-12-01T23:59:59.000Z

226

Contact angle hysteresis of cylindrical drops on chemically heterogeneous striped surfaces  

E-Print Network (OSTI)

Contact angle hysteresis of a macroscopic droplet on a heterogeneous but flat substrate is studied using the interface displacement model. First, the apparent contact angle of a droplet on a heterogeneous surface under the condition of constant volume is considered. By assuming a cylindrical liquid-vapor surface (meniscus) and minimizing the total free energy, we derive an equation for the apparent contact angle, which is similar but different from the well-known Cassie's law. Next, using this modified Cassie's law as a guide to predict the behavior of a droplet on a heterogeneous striped surface, we examine several scenarios of contact angle hysteresis using a periodically striped surface model. By changing the volume of the droplet, we predict a sudden jump of the droplet edge, and a continuous change of the apparent contact angle at the edge of two stripes. Our results suggest that as drop volume is increased (advancing contact lines), the predominant drop configuration observed is the one whose contact angle is large; whereas, decreasing drop volume from a large value (receding contact lines) yields drop configuration that predominantly exhibit the smaller contact angle.

Masao Iwamatsu

2005-11-26T23:59:59.000Z

227

Radiative Impacts on the Growth of a Population of Drops within Simulated Summertime Arctic Stratus  

Science Conference Proceedings (OSTI)

The impact of solar heating and infrared cooling on the growth of a population of drops is studied with two numerical modeling frameworks. An eddy-resolving model (ERM) simulation of Arctic stratus clouds is used to generate a dataset of 500 ...

Jerry Y. Harrington; Graham Feingold; William R. Cotton

2000-03-01T23:59:59.000Z

228

FEM analysis of voltage drop in the anode connector induced by steel stub diameter reduction  

Science Conference Proceedings (OSTI)

Primary aluminium production is a high-energy consumption process, and improving the energy efficiency of smelters could be economically viable. An issue in the Hall-Heroult prebake anode technology is the voltage drop in the anode connector caused by ... Keywords: Aluminium reduction cell, Carbon anode, Energy efficiency, Finite element method, Stub hole, Thermo-electro-mechanical modelling

Hugues Fortin; Nedeltcho Kandev; Mario Fafard

2012-05-01T23:59:59.000Z

229

Determination of robot drop location for military path planning using GIS application  

Science Conference Proceedings (OSTI)

Due to the uncertainties and higher risks of fatality in combat situations, Unmanned Ground Robots (UGR) may be proven to be a safer alternative for carrying out critical military missions, such as search and rescue, and reconnaissance operations. Among ... Keywords: military path planning, robot drop, unmanned ground robot

Min-Wook Kang; Manoj K. Jha; Gautham Karri

2010-01-01T23:59:59.000Z

230

Study of a liquid-gas mixing layer: Shear instability and size of produced drops  

E-Print Network (OSTI)

Study of a liquid-gas mixing layer: Shear instability and size of produced drops Sylvain Marty +++++ Presented by £££££ Abstract We study experimentally the atomization of a liquid sheet by a parallel gas flow creation. We study in particular the regimes at low M (ratio of gas/liquid dynamic pressures), to test

Paris-Sud XI, Université de

231

Hydroclimatic Factors of the Recent Record Drop in Laurentian Great Lakes Water Levels  

Science Conference Proceedings (OSTI)

An extreme low-water supply episode from 1997 to 2000 resulted in the largest 1-yr drop in Lakes MichiganHuron and Lake Erie water levels (0.92 and 1.03 m, respectively) recorded since measurements began in the early 1800s. Lake Superior water ...

Raymond A. Assel; Frank H. Quinn; Cynthia E. Sellinger

2004-08-01T23:59:59.000Z

232

Minimizing Instrumental Broadening of the Drop Size Distribution with the M-Fast-FSSP  

Science Conference Proceedings (OSTI)

A modified version of the Fast-FSSP (the so-called M-Fast-FSSP) is introduced. It allows minimization of the instrumental broadening of measured cloud drop size distributions caused by laser beam inhomogeneities. This is achieved by applying a ...

Sebastian Schmidt; Katrin Lehmann; Manfred Wendisch

2004-12-01T23:59:59.000Z

233

Orientation Angle Distributions of Drops after an 80-m Fall Using a 2D Video Disdrometer  

Science Conference Proceedings (OSTI)

This note reports on the use of a 2D video disdrometer to estimate the orientation of drops (>2 mm) that were generated artificially and allowed to fall 80 m from a bridge with no obstruction and under calm conditions. This experimental setup ...

Gwo-Jong Huang; V. N. Bringi; M. Thurai

2008-09-01T23:59:59.000Z

234

CFD analysis of the effect of elbow radius on pressure drop in multiphase flow  

Science Conference Proceedings (OSTI)

Computational fluid dynamics (CFD) analysis was performed in four different 90 degree elbows with air-water two-phase flows. The inside diameters of the elbows were 6.35mm and 12.7mm with radius to diameter ratios (r/D) of 1.5 to 3. The pressure drops ...

Quamrul H. Mazumder

2012-01-01T23:59:59.000Z

235

Regimes of polymer behaviour in drop-on-demand ink-jetting  

E-Print Network (OSTI)

and Ian M Hutchings, University of Cambridge, Cambridge UK; Oliver G Harlen, Claire McIlroy and Neil F Morrison, University of Leeds, Leeds UK Abstract A recent model for the drop-on-demand (DoD) jetting of mono-disperse linear polymer solutions...

Hoath, S.D.; Hutchings, I.M.; Harlen, O.G.; McIIroy, C.; Morrison, N.F.

2012-01-01T23:59:59.000Z

236

Potential drop mapping for the monitoring of corrosion or erosion Giuseppe Sposito a  

E-Print Network (OSTI)

in boilers at a power plant was succ resistance Corrosion Erosion a b s t r a c t Potential drop techniques have been employed in the power [1,2], for monitoring the growth of surface-breaking cracks [3­7] and for the characterisation

Nagy, Peter B.

237

The Simultaneous Measurement of Rainfall Intensity, Drop-Size Distribution, and the Scattering of Visible Light  

Science Conference Proceedings (OSTI)

Field measurements were made of the attenuation of a low-power. He-Ne laser beam over a 272-m path. Concurrently, high-resolution (10 s) measurements of rainfall intensity were obtained at several points along the path and drop-size distributions ...

C. D. Stow; S. G. Bradley; K. Paulson; L. Couper

1991-10-01T23:59:59.000Z

238

Lattice Boltzmann simulations of micron-scale drop impact on dry surfaces  

Science Conference Proceedings (OSTI)

A lattice Boltzmann equation (LBE) method for incompressible binary fluids is proposed to model the contact line dynamics on partially wetting surfaces. Intermolecular interactions between a wall and fluids are represented by the inclusion of the cubic ... Keywords: Contact line dynamics, Drop impact, Lattice Boltzmann method, Parasitic currents

Taehun Lee; Lin Liu

2010-10-01T23:59:59.000Z

239

The Effects of Drop Size Distribution Truncation on Rainfall Integral Parameters and Empirical Relations  

Science Conference Proceedings (OSTI)

A description is given of a method of estimating the effects of truncating the raindrop size distribution (DSD) at lower and upper drop diameters Dmin and Dmax which assumes that the DSD can be approximated by a gamma distribution (including the ...

Carlton W. Ulbrich

1985-06-01T23:59:59.000Z

240

Fig. 1: Journal Articles Tab on library homepage Fig. 2 Drop down menu Engineering  

E-Print Network (OSTI)

-campus, you will be prompted to enter your myWSU ID and password as soon as you click the "search" button allows you to separate several search terms or phrases in various fields with the drop-down menu (figure search terms and list the databases it is searching (fig. 8). When the search is completed, the window

Note: This page contains sample records for the topic "hughes incorporated dropped" 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.


241

The Drop-Size Response of the CSIRO Liquid Water Probe  

Science Conference Proceedings (OSTI)

The response of the CSIRO liquid water content (LWC) device to water drops of different sizes has been investigated in a wind tunnel. Two series of experiments were conducted. The first compared the probe-measured LWC of sprays with different ...

C. J. Biter; J. E. Dye; D. Huffman; W. D. King

1987-09-01T23:59:59.000Z

242

A Simple Technique for Simultaneous Suspension of Multiple Drops in a Small Vertical Wind Tunnel  

Science Conference Proceedings (OSTI)

A simple technique is described by which multiple millimeter-size water drops can be simultaneously suspended in an air stream above the test section of a 12 12 cm cross section of a vertical wind tunnel. Horizontal profiles of the vertical air ...

A. K. Kamra; D. V. Ahire

1985-09-01T23:59:59.000Z

243

ENHANCEMENT OF STRUCTURAL FOAM MATERIALS BY INCORPORATION OF GASIFIER SLAG  

SciTech Connect

As advanced gasification technology is increasingly adopted as an energy source, disposal of the resulting slag will become a problem. We have shown that gasifier slag can be incorporated into foamed glass, which is currently being manufactured as an abrasive and as an insulating material. The slag we add to foamed glass does not simply act as filler, but improves the mechanical properties of the product. Incorporation of gasifier slag can make foamed glass stronger and more abrasion resistant.

Olin Perry Norton; Ronald A. Palmer; W. Gene Ramsey

2006-03-15T23:59:59.000Z

244

HI-STAR 100 Spent Fuel Transport Cask Analytical Evaluation for Drop Events  

Science Conference Proceedings (OSTI)

The U.S. Nuclear Regulatory Commission (NRC) is responsible for licensing commercial spent nuclear fuel transported in casks certified by NRC under the Code of Federal Regulations (CFR), Title 10, Part 71 [1]. Both the International Atomic Energy Agency (IAEA) regulations for transporting radioactive materials [2, paragraph 727], and 10 CFR 71.73 require casks to be evaluated for hypothetical accident conditions, which includes a 9-meter (m) (30-ft) drop impact event on a flat, essentially unyielding, horizontal surface, in the most damaging orientation. This paper examines the behavior of one of the NRC-certified transportation casks, the HI-STAR 100 [3], for drop impact events. The specific area examined is the behavior of the bolted connections in the overpack top flange and the closure plate, which are significantly loaded during the hypothetical drop impact event. The term overpack refers to the cask that receives and contains a sealed multi-purpose canister (MPC) containing spent nuclear fuel. The analytical work to evaluate the NRC-certified HI-STAR 100 spent fuel transport cask [3] for a 9-m (30-ft) drop impact event on a flat, unyielding, horizontal surface, was performed using the ANSYS [4] and LS DYNA [5] finite-element analysis codes. The models were sufficiently detailed, in the areas of bolt closure interfaces and containment boundaries, to evaluate the structural integrity of the bolted connections under 9-m (30-ft) free-drop hypothetical accident conditions, as specified in 10 CFR 71.73. Evaluation of the cask for puncture, caused by a free-drop through a distance of 1-m (40-in.) onto a mild steel bar mounted on a flat, essentially unyielding, horizontal surface, required by 10 CFR 71.73, was not included in the current work, and will have to be addressed in the future. Based on the analyses performed to date, it is concluded that, even though brief separation of the flange and the closure plate surfaces may occur, the seals would close at the end of the drop events, because the materials remain elastic during the duration of the event.

Shah, M. J.; Klymyshyn, Nicholas A.; Adkins, Harold E.; Koeppel, Brian J.

2007-03-30T23:59:59.000Z

245

Drop Shapes and Axis Ratio Distributions: Comparison between 2D Video Disdrometer and Wind-Tunnel Measurements  

Science Conference Proceedings (OSTI)

Comparisons of drop shapes between measurements made using 2D video disdrometer (2DVD) and wind-tunnel experiments are presented. Comparisons are made in terms of the mean drop shapes and the axis ratio distributions. Very close agreement of the ...

M. Thurai; V. N. Bringi; M. Szakll; S. K. Mitra; K. V. Beard; S. Borrmann

2009-07-01T23:59:59.000Z

246

Incorporating Aggregated PV Systems into the Power Grid | Open Energy  

Open Energy Info (EERE)

Incorporating Aggregated PV Systems into the Power Grid Incorporating Aggregated PV Systems into the Power Grid Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Spain Installed Wind Capacity Website Focus Area: Renewable Energy Topics: Market Analysis Website: www.gwec.net/index.php?id=131 Equivalent URI: cleanenergysolutions.org/content/spain-installed-wind-capacity-website Language: English Policies: Regulations Regulations: Feed-in Tariffs This website presents an overview of total installed wind energy capacity in Spain per year from 2000 to 2010. The page also presents the main market developments from 2010; a policy summary; a discussion of the revision in feed-in tariffs in 2010; and a future market outlook. References Retrieved from "http://en.openei.org/w/index.php?title=Incorporating_Aggregated_PV_Systems_into_the_Power_Grid&oldid=514463

247

Manufacturing Plants Incorporate Energy Efficiency into Business Model |  

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

Manufacturing Plants Incorporate Energy Efficiency into Business Manufacturing Plants Incorporate Energy Efficiency into Business Model Manufacturing Plants Incorporate Energy Efficiency into Business Model April 27, 2011 - 12:15pm Addthis Participants of the Superior Energy Performance certification program | Photo Courtesy of Texas Industries of the Future/Dave Bray Participants of the Superior Energy Performance certification program | Photo Courtesy of Texas Industries of the Future/Dave Bray Lowell Sachs Lead Technology Partnership Specialist, Industrial Technologies Program Four Texas-based manufacturing plants are adopting robust energy efficiency standards as part of an energy management certification program led by the Department of Energy's Industrial Technologies Program. The certification program, called Superior Energy Performance, provides a

248

Incorporating Wind Generation in Cap and Trade Programs  

Wind Powering America (EERE)

Incorporating Wind Generation in Incorporating Wind Generation in Cap and Trade Programs Joel Bluestein Energy and Environmental Analysis, Inc. Elizabeth Salerno American Wind Energy Association Lori Bird and Laura Vimmerstedt National Renewable Energy Laboratory Technical Report NREL/TP-500-40006 July 2006 Incorporating Wind Generation in Cap and Trade Programs Joel Bluestein Energy and Environmental Analysis, Inc. Elizabeth Salerno American Wind Energy Association Lori Bird and Laura Vimmerstedt National Renewable Energy Laboratory Prepared under Task No. WER6 6006 Technical Report NREL/TP-500-4006 July 2006 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy

249

Manufacturing Plants Incorporate Energy Efficiency into Business Model |  

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

Manufacturing Plants Incorporate Energy Efficiency into Business Manufacturing Plants Incorporate Energy Efficiency into Business Model Manufacturing Plants Incorporate Energy Efficiency into Business Model April 27, 2011 - 12:15pm Addthis Participants of the Superior Energy Performance certification program | Photo Courtesy of Texas Industries of the Future/Dave Bray Participants of the Superior Energy Performance certification program | Photo Courtesy of Texas Industries of the Future/Dave Bray Lowell Sachs Lead Technology Partnership Specialist, Industrial Technologies Program Four Texas-based manufacturing plants are adopting robust energy efficiency standards as part of an energy management certification program led by the Department of Energy's Industrial Technologies Program. The certification program, called Superior Energy Performance, provides a

250

STATEMENT OF CONSIDERATIONS REQUEST BY XANTREX TECHNOLOGY, INCORPORATED FOR AN  

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

XANTREX TECHNOLOGY, INCORPORATED FOR AN XANTREX TECHNOLOGY, INCORPORATED FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN PATENT RIGHTS UNDER DOE PRIME CONTRACT NO. DE-FC36-83CH10093 AND SUBCONTRACT NO. NREL-NDO-1-30628-02; W(A)-01-036; CH-1081 As set out in the attached waiver petition, Xantrex Technology, Incorporated (Xantrex) has requested an advance waiver of domestic and foreign patent rights for all subject inventions made by its employees under the above-identified subcontract, entitled "PV Invertor Products Manufacturing and Design Improvement for Cost Reduction and Performance Enhancement". The purpose of the subcontract encompasses the development of improved photovoltaic (PV) manufacturing processes and products while reducing costs and providing a technology foundation that supports significant manufacturing scale-up. Xantex intends to accomplish this

251

Two-phase pressure drop in vertical crossflow across a horizontal tube bundle  

Science Conference Proceedings (OSTI)

An experimental investigation has been made to evaluate the friction, acceleration, and hydrostatic pressure drops in two-phase vertical crossflow across a horizontal tube bundle through the measurement of the void fraction and determination of the two-phase friction multiplier. The void fractions were found to increase with increasing mass velocity for a fixed quality level. The two-phase friction multiplier increased with increasing mass velocity for a fixed value of the Martinelli parameter in both slug and spray flow and decreased with increasing mass velocity in bubbly flows. The void fraction and two-phase friction multiplier data were correlated and used to predict with very good results the total pressure drop occurring in simulated diabatic flow tests and in actual diabatic tests using R-113.

Schrage, D.S.; Hsu, J.T.; Jensen, M.K.

1988-01-01T23:59:59.000Z

252

Subcooled and saturated water flow boiling pressure drop in small diameter helical coils at low pressure  

SciTech Connect

Experimental pressure drop results on boiling water flow through three helical coils of tube inner diameter of 4.03 mm and 4.98 mm and coil diameter to tube diameter ratio of 26.1, 64.1 and 93.3 are presented. Both subcooled and saturated flow boiling are investigated, covering operating pressures from 120 to 660 kPa, mass fluxes from 290 to 690 kg m{sup -2} s{sup -1} and heat fluxes from 50 to 440 kW m{sup -2}. Existing correlations for subcooled flow pressure drop are found not capable to fit the present subcooled database, while the measurements in saturated flow conditions are successfully reproduced by existing correlations for both straight and coiled pipe two-phase flow. The experimental database is included in tabular form. (author)

Cioncolini, Andrea; Santini, Lorenzo; Ricotti, Marco E. [Department of Nuclear Engineering, Politecnico di Milano, via Ponzio 34/3, 20133 Milano (Italy)

2008-05-15T23:59:59.000Z

253

ACARS Aerodynamic (Research Incorporated) Communication and Recording System  

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

ix ix Acrononyms and Abbreviations Acronyms and Abbreviations ACARS Aerodynamic (Research Incorporated) Communication and Recording System ACSYS Arctic Climate System Study AER Atmospheric Environmental Research, Inc. AERI Atmospheric Emitted Radiance Interferometer AFOSR Air Force Office of Scientific Research AGARD Advisory Group for Aerospace Research and Development ALFA AER Local Forecast and Assimilation (model) AMIP Atmospheric Model Intercomparison Project ARCS Atmosphere Radiation and Cloud Stations ARCSS Arctic System Science (NSF) ARCSYM Arctic Regional Climate System Model ARINC Aerodynamic Research Incorporated Communication ARM Atmospheric Radiation Measurement program AS anvil stratus ASTER Atmosphere-Surface Turbulent Exchange Research ASTEX Altantic Stratocumulus Transition EXperiment

254

"Violent Intent Modeling: Incorporating Cultural Knowledge into the Analytical Process  

SciTech Connect

While culture has a significant effect on the appropriate interpretation of textual data, the incorporation of cultural considerations into data transformations has not been systematic. Recognizing that the successful prevention of terrorist activities could hinge on the knowledge of the subcultures, Anthropologist and DHS intern Faith Nibbs has been addressing the need to incorporate cultural knowledge into the analytical process. In this Brown Bag she will present how cultural ideology is being used to understand how the rhetoric of group leaders influences the likelihood of their constituents to engage in violent or radicalized behavior, and how violent intent modeling can benefit from understanding that process.

Sanfilippo, Antonio P.; Nibbs, Faith G.

2007-08-24T23:59:59.000Z

255

Coefficients and terms of the liquid drop model and mass formula  

E-Print Network (OSTI)

The coefficients of different combinations of terms of the liquid drop model have been determined by a least square fitting procedure to the experimental atomic masses. The nuclear masses can also be reproduced using a Coulomb radius taking into account the increase of the ratio $R\\_0/A^{1/3}$ with increasing mass, the fitted surface energy coefficient remaining around 18 MeV.

G. Royer; C. Gautier

2006-08-28T23:59:59.000Z

256

Strategic planning of recycling drop-off stations and collection network by multiobjective programming  

SciTech Connect

Effective planning of solid-waste recycling programs is a substantial challenge to the current solid-waste management systems in Taiwan. Due to the rapid depletion of landfill space and the continuing delay in construction programs of municipal incinerators, solid-waste management strategies have to be reorganized in light of the success of recycling, recovery, and reuse of secondary materials. One of these efforts is how to effectively allocate recycling drop-off stations of appropriate size and how to design efficient collection-vehicle routing and scheduling programs in the solid waste collection network. This management strategy is particularly important in the privatized system with recycling containers and material recovery facilities (MRFs) owned by one agency. This research seeks multiobjective evaluation of the trade-off between the number and size of drop-off stations, the population covered in the service network, the average walking distance to drop-off stations by the population, and the distance traveled by collection vehicles. It also illustrates the use of the multiobjective nonlinear mixed integer programming model to achieve such goals that are solved by the genetic algorithms (GA) in a geographical information system (GIS) platform. The case study shows the application potential of such a methodology in the city of Kaohsiung in Taiwan.

Chang, N.; Wei, Y.L. (National Cheng-Kung Univ., Tainan (Taiwan, Province of China). Dept. of Environmental Engineering)

1999-08-01T23:59:59.000Z

257

Determination of the cathode and anode voltage drops in high power low-pressure amalgam lamps  

Science Conference Proceedings (OSTI)

For the first time, cathode and anode drops of powerful low-pressure amalgam lamps were measured. The lamp discharge current is 3.2 A, discharge current frequency is 43 kHz, linear electric power is 2.4 W/cm. The method of determination of a cathode drop is based on the change of a lamp operating voltage at variation of the electrode filament current at constant discharge current. The total (cathode plus anode) drop of voltage was measured by other, independent ways. The maximum cathode fall is 10.8 V; the anode fall corresponding to the maximal cathode fall is 2.4 V. It is shown that in powerful low pressure amalgam lamps the anode fall makes a considerable contribution (in certain cases, the basic one) to heating of electrodes. Therefore, the anode fall cannot be neglected, at design an electrode and ballast of amalgam lamps with operating discharge current frequency of tens of kHz.

Vasilyak, L. M., E-mail: vasilyak@ihed.ras.ru [Russian Academy of Sciences, Joint Institute for High Temperatures (Russian Federation); Vasiliev, A. I., E-mail: vasiliev@npo.lit.ru; Kostyuchenko, S. V.; Sokolov, D. V.; Startsev, A. Yu. [Joint Stock Company NPO LIT (Russian Federation); Kudryavtsev, N. N. [Moscow Institute of Physics and Technology (State University) (Russian Federation)

2011-12-15T23:59:59.000Z

258

An experimental investigation of pressure drop of aqueous foam in laminar tube flow  

DOE Green Energy (OSTI)

This report is the first of two detailing pressure-drop and heat-transfer measurements made at the Foam Flow Heat Transfer Loop. The work was motivated by a desire to extend the application of aqueous foam from petroleum drilling to geothermal drilling. Pressure-drop measurements are detailed in this report; a forthcoming report (SAND85-1922) will describe the heat-transfer measurements. The pressure change across a 2.4-m (8-ft) length of the 2.588-cm (1.019-in.) ID test section was measured for liquid volume fractions between 0.05 and 0.35 and average velocities between 0.12 and 0.80 m/s (0.4 and 2.6 ft/s). The resulting pressure-drop/flow-rate data were correlated to a theoretical model for a Bingham plastic. Simple expressions for the dynamic viscosity and the yield stress as a function of liquid volume fraction were estimated.

Blackwell, B.F.; Sobolik, K.B.

1987-04-01T23:59:59.000Z

259

Pressure drop and heat transfer characteristics of boiling water in sub-hundred micron channel  

SciTech Connect

The current work focuses on the pressure drop, heat transfer and stability in two phase flow in microchannels with hydraulic diameter of less than one hundred microns. Experiments were conducted in smooth microchannels of hydraulic diameter of 45, 65 {mu}m, and a rough microchannel of hydraulic diameter of 70 {mu}m, with deionised water as the working fluid. The local saturation pressure and temperature vary substantially over the length of the channel. In order to correctly predict the local saturation temperature and subsequently the heat transfer characteristics, numerical techniques have been used in conjunction with the conventional two phase pressure drop models. The Lockhart-Martinelli (liquid-laminar, vapour-laminar) model is found to predict the two phase pressure drop data within 20%. The instability in two phase flow is quantified; it is found that microchannels of smaller hydraulic diameter have lesser instabilities as compared to their larger counterparts. The experiments also suggest that surface characteristics strongly affect flow stability in the two phase flow regime. The effect of hydraulic diameter and surface characteristics on the flow characteristics and stability in two phase flow is seldom reported, and is of considerable practical relevance. (author)

Bhide, R.R.; Singh, S.G.; Sridharan, Arunkumar; Duttagupta, S.P.; Agrawal, Amit [Department of Mechanical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076 (India)

2009-09-15T23:59:59.000Z

260

Gas-liquid pressure drop in vertical internally wavy 90 bend  

SciTech Connect

Experiments of air water two-phase flow pressure drop in vertical internally wavy 90 bend have been carried out. The tested bends are flexible and made of stainless steel with inner diameter of 50 mm and various curvature radiuses of 200, 300, 400 and 500 mm. The experiments were performed under the following conditions of two-phase parameters; mass flux from 350 to 750 kg/m{sup 2} s. Gas quality from 1% to 50% and system pressure from 4 to 7.5 bar. The results demonstrate that the effect of the above-mentioned parameters is very significant at high ranges of mass flow quality. Due to the increasing of two-phase flow resistance, energy dissipations, friction losses and interaction of the two-phases in the vertical internally wavy 90 bend the total pressure drops are perceptible about 2-5 times grater than that in smooth bends. Based on the mass and energy balance as well as the presented experimental results, new empirical correlation has been developed to calculate the two-phase pressure drop and hence the two-phase friction factor of the tested bends. The correlation includes the relevant primary parameter, fit the data well, and is sufficiency accurate for engineering purposes. (author)

Benbella, Shannak [Department of Mechanical Engineering, Al-Balqa Applied University, Al-Huson University College, P.O. Box 50, Al-Huson (Jordan); Al-Shannag, Mohammad; Al-Anber, Zaid A. [Department of Chemical Engineering, Faculty of Engineering Technology, Al-Balqa Applied University, P.O. Box 15008, Marka 11134, Amman (Jordan)

2009-01-15T23:59:59.000Z

Note: This page contains sample records for the topic "hughes incorporated dropped" 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.


261

Method for incorporating radioactive phosphoric acid solutions in concrete  

DOE Patents (OSTI)

A method for incorporating radioactive phosphoric acid solutions in concrete is described wherein the phosphoric acid is reacted with Ca(OH)/sub 2/ to form a precipitate of hydroxyapatite and the hydroxyapatite is mixed with Portland cement to form concrete.

Wolf, G.A.; Smith, J.W.; Ihle, N.C.

1982-07-08T23:59:59.000Z

262

Integrated Modeling of Building Energy Requirements Incorporating Solar  

E-Print Network (OSTI)

and Renewable Energy, Distributed Energy Program of the U.S. Department of Energy under Contract No. DE-AC02 report LBNL-52753. February 2003. Site information and characteristics EIA (U.S. Energy InformationLBNL-58783 Integrated Modeling of Building Energy Requirements Incorporating Solar Assisted Cooling

263

Method for incorporating radioactive phosphoric acid solutions in concrete  

DOE Patents (OSTI)

A method for incorporating radioactive phosphoric acid solutions in concrete is described wherein the phosphoric acid is reacted with Ca(OH).sub.2 to form a precipitate of hydroxyapatite and the hydroxyapatite is mixed with portland cement to form concrete.

Wolf, Gary A. (Kennewick, WA); Smith, Jeffrey W. (Lancaster, OH); Ihle, Nathan C. (Walla Walla, WA)

1984-01-01T23:59:59.000Z

264

A Wind Tunnel Investigation of the Effect of an External, Vertical Electric Field on the Shape of Electrically Uncharged Rain Drops  

Science Conference Proceedings (OSTI)

Results are presented of a recent wind tunnel experiment in which electrically unchanged water drops of 10003000 ?m equivalent radius were freely suspended in the vertical air stream of the UCLA Cloud Tunnel. During their suspension, the drops ...

R. Rasmussen; C. Walcek; H.R. Pruppacher; S.K. Mitra; J. Lew; V. Levizzani; P.K. Wang; U. Barth

1985-08-01T23:59:59.000Z

265

Correction of Drop Shape-Induced Errors on Rain Rates Derived from Radar-Measured Doppler Spectra at Vertical Incidence  

Science Conference Proceedings (OSTI)

The shape of larger raindrops shows a deviation from spheres. This leads to a radar backscatter cross section different from the Rayleigh cross section. The drop shape-induced error for deducing rain rates is calculated. The resulting correction ...

Dirk Klugmann; Carolin Richter

1995-06-01T23:59:59.000Z

266

Numerical Investigation of Air-Side Heat Transfer and Pressure Drop in Circular Finned-Tube Heat Exchangers.  

E-Print Network (OSTI)

??A three-dimensional numerical study is performed to investigate the heat transfer and pressure drop performance on the air-side of circular finned tube bundles in cross (more)

Mon, Mi Sandar

2003-01-01T23:59:59.000Z

267

Drop Size Distributions Measured by a 2D Video Disdrometer: Comparison with Dual-Polarization Radar Data  

Science Conference Proceedings (OSTI)

An analysis of drop size distributions (DSDs) measured in four very different precipitation regimes is presented and is compared with polarimetric radar measurements. The DSDs are measured by a 2D video disdrometer, which is designed to measure ...

Terry J. Schuur; Alexander V. Ryzhkov; Dusan S. Zrni?; Michael Schnhuber

2001-06-01T23:59:59.000Z

268

An Inferred Climatology of Icing Conditions Aloft, Including Supercooled Large Drops. Part II: Europe, Asia, and the Globe  

Science Conference Proceedings (OSTI)

Because of a lack of regular, direct measurements, limited information is available about the frequency and the spatial and temporal distribution of icing conditions aloft, including supercooled large drops (SLD). Research aircraft provide in ...

Ben C. Bernstein; Christine Le Bot

2009-08-01T23:59:59.000Z

269

An Inferred Climatology of Icing Conditions Aloft, Including Supercooled Large Drops. Part I: Canada and the Continental United States  

Science Conference Proceedings (OSTI)

Because of a lack of regular, direct measurements, little information is available about the frequency and spatial and temporal distribution of icing conditions aloft, including supercooled large drops (SLD). Research aircraft provide in situ ...

Ben C. Bernstein; Cory A. Wolff; Frank McDonough

2007-11-01T23:59:59.000Z

270

The Effect of Vertical Turbulent Fluctuations in the Atmosphere on the Collection of Aerosol Particles by Cloud Drops  

Science Conference Proceedings (OSTI)

A one-dimensional model of the effect of the vertical component of atmospheric turbulent fluctuations on the collection of micron-size aerosol particles by cloud drops is presented. The model includes simultaneous effects of the differential ...

S. N. Grover; H. R. Pruppacher

1985-11-01T23:59:59.000Z

271

Coincident In Situ and W-Band Radar Measurements of Drop Size Distribution in a Marine Stratus Cloud and Drizzle  

Science Conference Proceedings (OSTI)

Investigation of precipitation formation requires measurements of the drop size distribution in a cloud. These measurements have usually been made using ground-based radar systems or aircraft in situ probes. Difficulties encountered in practice ...

J. Galloway; A. Pazmany; J. Mead; R. E. McIntosh; D. Leon; J. French; S. Haimov; R. Kelly; G. Vali

1999-05-01T23:59:59.000Z

272

The Bias and Error in Moment Estimators for Parameters of Drop Size Distribution Functions: Sampling from Gamma Distributions  

Science Conference Proceedings (OSTI)

This paper complements an earlier one that demonstrated the bias in the method-of-moments (MM) estimators frequently used to estimate parameters for drop size distribution (DSD) functions being fitted to observed raindrop size distributions. ...

Paul L. Smith; Donna V. Kliche; Roger W. Johnson

2009-10-01T23:59:59.000Z

273

Syracuse Univesity Test Report On Uptake Factor Resulting From A Dropped Storage Container - Phase II  

Science Conference Proceedings (OSTI)

Under certain circumstances, powder from an accidently dropped container can become airborne and inhaled by people nearby such as those who are moving the containers. The inhaled fine particles can deposit on respiratory tracts and lungs, causing asthma, lung cancer, and other acute respiratory illnesses and chronic symptoms. The objective of this study was to develop a standard procedure to measure the airborne concentrations of different size particles within the vicinity of a dropped container where a significant portion of the contained powder is ejected. Tungsten oxide (WO{sub 3}) was selected in this study to represent relatively heavy powders (7.16 g/cm3 specific gravity for WO{sub 3}). A typical can with the outer dimensions of 4.25 diameter and 4.875 tall was used as the container. The powder was dropped in two different configurations: 1) contained within a can covered by a lid that has a 0.25 diameter hole, and 2) contained within a can without a lid. The packing volume of the powder was 51.4 in3 (842.7 cm{sup 3}) and the target mass was 1936 g. The tests were carried out in a full-scale stainless steel environmental chamber with an interior volume of 852 ft3 (24.1 m3). The chamber system includes an internal recirculation loop with a rectangular air diffuser and 10 variable frequency drive fans to provide a typical room air recirculation flow pattern. Two air filters were installed in the chamber air supply duct and return duct to achieve the required low background particle concentration. The initial chamber air conditions were set at 70F ( 5F) and 50% ( 10%) RH. A supporting frame and releasing device were designed and built to trigger consistently the dropping of the can. The particle sampling inlet was placed 5 ft above the floor and 6 inches laterally away from the cans falling path. Concentrations of particles between 0.5 ?m and 20 ?m were recorded in units of mass and number of particles per unit volume. The data acquisition rate was once every 2 seconds during the first 2 hours. A test procedure was developed and verified. A total of thirty two drop tests were performed, eight in Phase I and twenty four in Phase II, covering variations in dropping height (8 ft or 4 ft from the floor), room air movement (0.25-0.30 m/s or 0.10-0.15 m/s near the ceiling), landing scenario (on a flat plate or a block), and lid condition ( lid hole or no lid). There were ten tests with flat plate and lid hole, ten tests with flat plate no lid and twelve tests with block no lid.

Gao, Zhi; Zhang, Jianshun S.

2012-01-01T23:59:59.000Z

274

Incorporating Copyrighted Material into STI Products | Scientific and  

Office of Scientific and Technical Information (OSTI)

Incorporating Copyrighted Material into STI Products Incorporating Copyrighted Material into STI Products Print page Print page Email page Email page Most contractors have standard procedures that their researchers are not to include third-party copyrighted material within their STI products. If such material (e.g., a chart or illustration) is included, release should be obtained from the copyright holder. The permission should state the scope of the release or permission to reproduce, distribute, prepare derivative works, display, or perform publicly so that access and availability can be accurately provided in the Announcement Notice (AN 241.1 or AN 241.3). The STI product originator should maintain all documentation related to getting permission from the copyright owner or authorized representative at the originating site.

275

STATEMENT OF CONSIDERATIONS REQUEST BY SOLAR TURBINES INCORPORATED (SOLAR) FOR  

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

23 3 9 10:39 FRO DOE-IPC-CHICAGO TO PGCP-HQ PfGE.002 23 3 9 10:39 FRO DOE-IPC-CHICAGO TO PGCP-HQ PfGE.002 STATEMENT OF CONSIDERATIONS REQUEST BY SOLAR TURBINES INCORPORATED (SOLAR) FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN PATENT RIGHTS UNDER DOE CONTRACT NO: DE-AC02-92CE40960; W(A)-93-004; CH-0755 Solar Turbines Incorporated (Solar), a wholly owned subsidiary of Caterpillar Inc., has requested a waiver of domestic and foreign patent rights for all subject inventions of its employees under this contract. In response to an RFP, Solar was awarded a letter contract on September 25, 1992. It is anticipated that the letter contract will be definitized by the end of March 1993. Solar's obligation to continue performance under the contract is contingent upon DOE granting a waiver of rights to subject inventions in

276

Passive Tamper Indicating Enclosures Incorporating Embedded Optical Fibre  

Science Conference Proceedings (OSTI)

AWE and PNNL are engaged in a technical collaboration investigating techniques to enhance continuity of knowledge over Accountable Items within a verified nuclear weapons dismantlement process. Tamper Indicating Enclosures (TIE) will likely be deployed as part of a chain of custody regime to indicate an unauthorised attempt to access an Accountable Item. This paper looks at the use of passive TIEs incorporating embedded optical fibre; concepts relating to deployment, tamper indication and unique identification will be discussed.

Wynn, Paul; White, Helen; Allen, Keir; Simmons, Kevin L.; Sliva, Paul; Benz, Jacob M.; Tanner, Jennifer E.

2011-08-14T23:59:59.000Z

277

Hydrogen incorporation into III-V nitrides during processing  

DOE Green Energy (OSTI)

Hydrogen is readily incorporated into GaN and related alloys during wet and dry etching, chemical vapor deposition of dielectric overlayers, boiling in water and other process steps, in addition to its effects during MOCVD or MOMBE growth. The hydrogen is bound at defects or impurities and passivates their electrical activity. Reactivation occurs at 450-550{degrees}C, but evolution from the crystal requires much higher temperatures ({ge} 800{degrees}C).

Pearton, S.J.; Abernathy, C.R.; Vartuli, C.B. [Univ. of Florida, Gainesville, FL (United States)] [and others

1995-10-01T23:59:59.000Z

278

Spontaneous fission half-lives of heavy and superheavy nuclei within a generalized liquid drop model  

E-Print Network (OSTI)

We systematically calculate the spontaneous fission half-lives for heavy and superheavy nuclei between U and Fl isotopes. The spontaneous fission process is studied within the semi-empirical WKB approximation. The potential barrier is obtained using a generalized liquid drop model, taking into account the nuclear proximity, the mass asymmetry, the phenomenological pairing correction, and the microscopic shell correction. Macroscopic inertial-mass function has been employed for the calculation of the fission half-life. The results reproduce rather well the experimental data. Relatively long half-lives are predicted for many unknown nuclei, sufficient to detect them if synthesized in a laboratory.

Xiaojun Bao; Hongfei Zhang; G. Royer; Junqing Li

2013-02-28T23:59:59.000Z

279

Brownian diode: Molecular motor based on a semi-permeable Brownian particle with internal potential drop  

E-Print Network (OSTI)

A model of an autonomous isothermal Brownian motor with an internal propulsion mechanism is considered. The motor is a Brownian particle which is semi-transparent for molecules of surrounding ideal gas. Molecular passage through the particle is controlled by a potential similar to that in the transition rate theory, i.e. characterized by two stationary states with a finite energy difference separated by a potential barrier. The internal potential drop maintains the diode-like asymmetry of molecular fluxes through the particle, which results in the particle's stationary drift.

A. V. Plyukhin

2013-02-19T23:59:59.000Z

280

Validation of EPRI Methodology for Analysis of Spend-Fuel Cask Drop and Tipover Events  

Science Conference Proceedings (OSTI)

Dry storage pads(typically consisting of reinforced concrete slabs constructed on engineered fill(ultimately serve as in situ impact limiters which can be designed to minimize the impact forces on a spent-fuel storage cask. This report presents experimental validation of a previously developed EPRI method for calculating deceleration forces sustained by a spent-fuel cask during its accidental drop or tipover onto a concrete storage pad. The report also describes a step-by-step procedure for applying the ...

1997-09-12T23:59:59.000Z

Note: This page contains sample records for the topic "hughes incorporated dropped" 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.


281

Transport of free surface liquid films and drops by external ratchets and self-ratcheting mechanisms  

E-Print Network (OSTI)

We discuss the usage of ratchet mechanisms to transport a continuous phase in several micro-fluidic settings. In particular, we study the transport of a dielectric liquid in a heterogeneous ratchet capacitor that is periodically switched on and off. The second system consists of drops on a solid substrate that are transported by different types of harmonic substrate vibrations. We argue that the latter can be seen as a self-ratcheting process and discuss analogies between the employed class of thin film equations and Fokker-Planck equations for transport of discrete objects in a 'particle ratchet'.

Uwe Thiele; Karin John

2010-01-14T23:59:59.000Z

282

Accidental Drop of a Carbon Steel/Lead Shipping Cask (HFEF 14) at Low Temperatures  

Science Conference Proceedings (OSTI)

A shielded cask is used to transport radioactive materials between facilities at the Idaho National Laboratory. The cask was fabricated with an outer and inner shell of A36 carbon steel with lead poured in the annular space between the shells to provide radiation shielding. Carbon steel is known to be susceptible to low-temperature brittle fracture under impact loading. This paper will present the analysis results representing postulated transportation accidents during on-site transfers of the cask at subzero temperatures. The accident scenarios were based on a series of cask drops onto a rigid surface from a height of 1.83m (6 ft.) Finite element models of the cask and its contents were solved and post processed using the ABAQUS software. Each model was examined for failure to contain radioactive materials and/or significant loss of radiation shielding. Results of these analyses show that the body of the cask exhibits considerable ruggedness and will remain largely intact after the impact. There will be deformation of the main cask body with localized brittle failure of the cask outer shell and door structure. The cask payload outer waste can remains in the cask but will experience some permanent plastic deformation in each drop. It will not be deformed to the point where it will rupture, thus maintaining confinement of the can contents.

Brian D. Hawkes; Michael E. Nitzel

2007-08-01T23:59:59.000Z

283

Biofuels Fuels Technology Pathway Options for Advanced Drop-in Biofuels Production  

DOE Green Energy (OSTI)

Advanced drop-in hydrocarbon biofuels require biofuel alternatives for refinery products other than gasoline. Candidate biofuels must have performance characteristics equivalent to conventional petroleum-based fuels. The technology pathways for biofuel alternatives also must be plausible, sustainable (e.g., positive energy balance, environmentally benign, etc.), and demonstrate a reasonable pathway to economic viability and end-user affordability. Viable biofuels technology pathways must address feedstock production and environmental issues through to the fuel or chemical end products. Potential end products include compatible replacement fuel products (e.g., gasoline, diesel, and JP8 and JP5 jet fuel) and other petroleum products or chemicals typically produced from a barrel of crude. Considering the complexity and technology diversity of a complete biofuels supply chain, no single entity or technology provider is capable of addressing in depth all aspects of any given pathway; however, all the necessary expert entities exist. As such, we propose the assembly of a team capable of conducting an in-depth technology pathway options analysis (including sustainability indicators and complete LCA) to identify and define the domestic biofuel pathways for a Green Fleet. This team is not only capable of conducting in-depth analyses on technology pathways, but collectively they are able to trouble shoot and/or engineer solutions that would give industrial technology providers the highest potential for success. Such a team would provide the greatest possible down-side protection for high-risk advanced drop-in biofuels procurement(s).

Kevin L Kenney

2011-09-01T23:59:59.000Z

284

The effect of longitudinal spacer ribs on the minimum pressure drop in a heated annulus  

SciTech Connect

When evaluating a heated flow passage for vulnerability to static flow excursions, special note should be taken of flow restrictions which might allow premature vapor generation. In this study, measurements of steady state pressure drop were made for the downward flow of water in a vertical annulus. The outer wall was uniformly heated to allow subcooled boiling. Minima in the pressure drop characteristics were compared for test sections with and without longitudinal spacer ribs. For a given power and inlet temperature, the minimum occurred at a higher flow rate in the ribbed test section. This is attributed to vapor generation at the ribs. The work cited in this document show how a restriction in a heated channel can produce vapor which would not be observed in the absence of the restriction. In the present study, the effect of a flow restriction on the tendency to flow excursion is explored by finding demand curves for a heated annulus in subcooled boiling flow. The annulus is heated from the outside, and alternately equipped with and without longitudinal spacer ribs. These ribs separate the heated and unheated walls; in pressing against the heated wall they provide a means for premature vapor production.

Johnston, B.S.; Neff, J.M.

1990-01-01T23:59:59.000Z

285

Heat transfer and pressure drop in hexagonal ducts with surface dimples  

SciTech Connect

Measurements of detailed Nusselt number (Nu) distributions and pressure drop coefficients (f) for four hexagonal ducts with smooth and dimpled walls are performed to comparatively examine the thermal performances of three sets of dimpled walls with concave-concave, convex-convex and concave-convex configurations at Reynolds numbers (Re) in the range of 900-30,000. A set of selected experimental data illustrates the influences of dimple configuration and Re on the detailed Nu distributions, the area-averaged Nu over developed flow region (Nu-bar) and the pressure drop coefficients. Relative enhancements of Nu and f from the smooth-walled references (Nu{sub {infinity}} and f{sub {infinity}}) along with the thermal performance factor ({eta}) defined as (Nu-bar/Nu{sub {infinity}})/(f/f{sub {infinity}}){sup 1/3} are examined. Nu-bar and f correlations are individually obtained for each tested hexagonal duct using Re as the controlling parameter. (author)

Chang, S.W. [Thermal Fluids Laboratory, National Kaohsiung Marine University, No. 142, Haijhuan Road, Nanzih District, Kaohsiung City 81143 (China); Chiang, K.F. [Thermal Dissipation Department, AVC International Company (China); Chou, T.C. [Department of Marine Engineering, National Kaohsiung Marine University (China)

2010-11-15T23:59:59.000Z

286

Piezoelectric Drop-on-Demand Inkjet Printing of Rat Fibroblast Cells: Survivability Study and Pattern Printing  

E-Print Network (OSTI)

A novel piezoelectric, drop-on-demand (DOD) inkjet system has been developed and used to print L929 rat fibroblast cells. We investigate the survivability of the cells subjected to the large stresses during the printing process. These stresses are varied by changing the diameter of the orifice (36 to 119 microns) through which the cells are dispensed, as well as changing the electrical pulse used to drive the piezoelectric element. It is shown that for the smallest 36 microns diameter orifice, cell survival rates fall from 95% to approximately 76% when the ejection velocity is increased from 2 to 16 m/s. This decrease in survival rates is less significant when the larger orifice diameters of 81 microns and 119 microns are used. Analysis shows that there is a clear inverse relationship between cell survival rates and the mean shear rates during drop formation. By using the same printing set-up, fibroblast cells are printed onto alginate and collagen into patterns. Printed cells are cultured over a period of da...

Li, Er Qiang; Thoroddsen, Sigurdur Tryggvi

2013-01-01T23:59:59.000Z

287

Engineering internship at Brown & Root, Incorporated: a report  

E-Print Network (OSTI)

An engineering intership at Brown & Root, Incorporated was completed over a period slightly in excess of one year. During his internship, the industrial engineer was assigned tasks related to the organization of a manufacturing department and the pursuit and completion of its projects. Many of his contributions were system-related and involved sales, engineering proposals, engineering economy, contract negotiations, employee merit evaluation, design, and general groundwork. He was also assigned to two engineering projects concerning the design and construction of manufacturing facilities. One of the project assignments required international travel to England and Nigeria, and almost all of the assignments involved some aspect of engineering management.

Gannaway, Randall Joe, 1952-

1977-12-01T23:59:59.000Z

288

Incorporation of Cu Acceptors in ZnO Nanocrystals  

Science Conference Proceedings (OSTI)

Doping of semiconductor nanocrystals is an important problem in nanomaterials research. Using infrared (IR) and x-ray photoelectron spectroscopy (XPS), we have observed Cu acceptor dopants that were intentionally introduced into ZnO nanocrystals. The incorporation of Cu2+ dopants increased as the diameter of the nanocrystals was increased from ~3 to 5 nm. Etching the nanocrystals with acetic acid revealed a core-shell structure, where a 2-nm lightly doped core is surrounded by a heavily doped shell. These observations are consistent with the trapped dopant model, in which dopant atoms stick to the surface of the core and are overgrown by the nanocrystal material.

Oo, W.M.H.; Mccluskey, Matthew D.; Huso, Jesse; Morrison, J.; Bergman, Leah; Engelhard, Mark H.; Saraf, Laxmikant V.

2010-09-16T23:59:59.000Z

289

Yttrium Dopants in Titania: not Structurally Incorporated but Bound at  

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

Yttrium Dopants in Titania: not Structurally Yttrium Dopants in Titania: not Structurally Incorporated but Bound at Surfaces Structurally incorporated impurities have been shown to have systematic effects on the rate of the thermally driven transformation in titania nanoparticles [1-4]. The anatase-to-rutile transformation is slowed when anatase nanoparticles are doped with a cation of valence > +4, but favored when the valence < +4. Based on these observations, Y3+ dopants should promote the anatase-to-rutile transformation. However, prior studies showed that the transformation is inhibited by Y3+ impurities [1,2], without explaining this observation. In a study led by the scientists of University of California Berkeley and Lawrence Berkeley National Laboratory, extended x-ray absorption fine structure (EXAFS) experiments on yttrium-doped titania nanoparticles were conducted for determining the local structural environment of Y3+ impurities. The experiments were developed in collaboration with SSRL beamline scientists at BLs 10-2 and 11-2.

290

The effects of incorporating dynamic data on estimates of uncertainty  

E-Print Network (OSTI)

Petroleum exploration and development are capital intensive and smart economic decisions that need to be made to profitably extract oil and gas from the reservoirs. Accurate quantification of uncertainty in production forecasts will help in assessing risk and making good economic decisions. This study investigates the effect of combining dynamic data with the uncertainty in static data to see the effect on estimates of uncertainty in production forecasting. Fifty permeability realizations were generated for a reservoir in west Texas from available petrophysical data. We quantified the uncertainty in the production forecasts using a likelihood weighting method and an automatic history matching technique combined with linear uncertainty analysis. The results were compared with the uncertainty predicted using only static data. We also investigated approaches for best selecting a smaller number of models from a larger set of realizations to be history matched for quantification of uncertainty. We found that incorporating dynamic data in a reservoir model will result in lower estimates of uncertainty than considering only static data. However, incorporation of dynamic data does not guarantee that the forecasted ranges will encompass the true value. Reliability of the forecasted ranges depends on the method employed. When sampling multiple realizations of static data for history matching to quantify uncertainty, a sampling over the entire range of realization likelihoods shows larger confidence intervals and is more likely to encompass the true value for predicted fluid recoveries, as compared to selecting the best models.

Mulla, Shahebaz Hisamuddin

2003-12-01T23:59:59.000Z

291

Ultra-Deepwater Advisory Committee Members | Department of Energy  

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

Cooper* Professor University of California, Berkeley Dr. Quenton R. Dokken PresidentCEO Gulf of Mexico Foundation Dr. Hartley H. Downs Technology Fellow Baker Hughes Incorporated...

292

Statistics of voltage drop in radial distribution circuits: a dynamic programming approach  

E-Print Network (OSTI)

We analyze a power distribution line with high penetration of distributed generation and strong variations of power consumption and generation levels. In the presence of uncertainty the statistical description of the system is required to assess the risks of power outages. In order to find the probability of exceeding the constraints for voltage levels we introduce the probability distribution of maximal voltage drop and propose an algorithm for finding this distribution. The algorithm is based on the assumption of random but statistically independent distribution of loads on buses. Linear complexity in the number of buses is achieved through the dynamic programming technique. We illustrate the performance of the algorithm by analyzing a simple 4-bus system with high variations of load levels.

Turitsyn, Konstantin S

2010-01-01T23:59:59.000Z

293

Transient heat and mass transfer in a drop experiencing absorption with internal circulation  

SciTech Connect

Absorption of gas and vapor into moving liquid droplet is frequently encountered in numerous applications in chemical industries and refrigeration technology. Here, transient heat and mass transfer associated with a moving liquid drop during absorption was numerically studied in this work. The roles played by the internal circulation inside the droplet and the exothermic heat effect were demonstrated. The numerical results reveal that the significant absorption enhancement by internal circulation becomes negligible with the increase of exothermic absorption heat. The highly exothermic system of LiBr/H{sub 2}O, which is used as a typical refrigerant/absorbent combination in commercial absorption heat pump (AHP), was selected as an example to illustrate this point.

Lu, H.H.; Wu, T.C.; Yang, Y.M.; Maa, J.R. [National Cheng Kung Univ., Tainan (Taiwan, Province of China). Dept. of Chemical Engineering] [National Cheng Kung Univ., Tainan (Taiwan, Province of China). Dept. of Chemical Engineering

1998-11-01T23:59:59.000Z

294

An active drop counting device using condenser microphone for superheated emulsion detector  

Science Conference Proceedings (OSTI)

An active device for superheated emulsion detector is described. A capacitive diaphragm sensor or condenser microphone is used to convert the acoustic pulse of drop nucleation to electrical signal. An active peak detector is included in the circuit to avoid multiple triggering of the counter. The counts are finally recorded by a microprocessor based data acquisition system. Genuine triggers, missed by the sensor, were studied using a simulated clock pulse. The neutron energy spectrum of {sup 252}Cf fission neutron source was measured using the device with R114 as the sensitive liquid and compared with the calculated fission neutron energy spectrum of {sup 252}Cf. Frequency analysis of the detected signals was also carried out.

Das, Mala; Marick, C.; Kanjilal, D.; Saha, S. [Nuclear and Atomic Physics Division, Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata 700064 (India); Arya, A S. [Department of Physics, VIT University, Vellore, Tamilnadu 632014 (India)

2008-11-15T23:59:59.000Z

295

Two-phase pressure drop across a hydrofoil-based micro pin device using R-123  

SciTech Connect

The two-phase pressure drop in a hydrofoil-based micro pin fin heat sink has been investigated using R-123 as the working fluid. Two-phase frictional multipliers have been obtained over mass fluxes from 976 to 2349 kg/m{sup 2} s and liquid and gas superficial velocities from 0.38 to 1.89 m/s and from 0.19 to 24 m/s, respectively. It has been found that the two-phase frictional multiplier is strongly dependent on flow pattern. The theoretical prediction using Martinelli parameter based on the laminar fluid and laminar gas flow represented the experimental data fairly well for the spray-annular flow. For the bubbly and wavy-intermittent flow, however, large deviations from the experimental data were recorded. The Martinelli parameter was successfully used to determine the flow patterns, which were bubbly, wavy-intermittent, and spray-annular flow in the current study. (author)

Kosar, Ali [Mechatronics Engineering Program, Sabanci University, Orhanli, Tuzla, 34956 Istanbul (Turkey)

2008-05-15T23:59:59.000Z

296

Piezoelectric Drop-on-Demand Inkjet Printing of Rat Fibroblast Cells: Survivability Study and Pattern Printing  

E-Print Network (OSTI)

A novel piezoelectric, drop-on-demand (DOD) inkjet system has been developed and used to print L929 rat fibroblast cells. We investigate the survivability of the cells subjected to the large stresses during the printing process. These stresses are varied by changing the diameter of the orifice (36 to 119 microns) through which the cells are dispensed, as well as changing the electrical pulse used to drive the piezoelectric element. It is shown that for the smallest 36 microns diameter orifice, cell survival rates fall from 95% to approximately 76% when the ejection velocity is increased from 2 to 16 m/s. This decrease in survival rates is less significant when the larger orifice diameters of 81 microns and 119 microns are used. Analysis shows that there is a clear inverse relationship between cell survival rates and the mean shear rates during drop formation. By using the same printing set-up, fibroblast cells are printed onto alginate and collagen into patterns. Printed cells are cultured over a period of days to verify their long-term viability. Fibroblasts printed onto the collagen are found to successfully adhere, spread and proliferate, subsequently forming a denser patterns after 5 days in culture. Cell agglomeration is found to affect the printing performance, especially for the printhead with the smallest orifice, leading to frequent clogging of the nozzle. We also study the number of cells in each droplet, when printed under optimal conditions. The probability density of this number follows a binomial distribution, which consistent with a uniform distribution of cells in the medium and within the printhead.

Er Qiang Li; Eng Khoon Tan; Sigurdur Tryggvi Thoroddsen

2013-10-02T23:59:59.000Z

297

Evaluation of subcriticality from a modeled asymmetric rod-drop for the Clinch River Breeder Reactor  

SciTech Connect

The proposed method for monitoring the subcriticality of the Clinch River Breeder Reactor (CRBR) is the modified source multiplication (MSM) method using ex-vessel detectors. The MSM method requires calibration by an alternate reactivity measurement technique, and present plans involve calibration from an inverse kinetics rod-drop (IKRD) calculation using the response of the source range flux monitors (SRFM) following a primary control assembly (PCA) insertion into the core. Past experiments have been performed to demonstrate the feasibility of the IKRD technique on small-scale mockups of the CRBR shield. These experiments have shown that the signal-to-noise ratio from the detector response is sufficient to perform IKRD calculations, but they do not correctly simulate the spatial effects that may be encountered in the full scale reactor. Therefore, a detailed analysis of the CRBR design is necessary to demonstrate the applicability of the IKRD method. The work performed for this dissertation generated a solution for the three-dimensional time-dependent angular flux in the shield following a simulated off-center rod drop and generated the SRFM detector response from this flux. The three-point IKRD technique was then applied to the detector response to calculate the subcritical reactivity (from the core model) to insure that spatial effects allowed the use of IKRD calculations to determine the core reactivity for actual reactor conditions. The results of comparing the direct calculation to the IKRD analyses showed that a maximum reactivity error of 1.3% was obtained from the IKRD analysis. These results indicate that the IKRD method can be used to calibrate the MSM method to monitor the subcriticality of the CRBR.

Jones, J.E.

1980-01-01T23:59:59.000Z

298

Net Metering and Interconnection Procedures-- Incorporating Best Practices  

SciTech Connect

State utility commissions and utilities themselves are actively developing and revising their procedures for the interconnection and net metering of distributed generation. However, the procedures most often used by regulators and utilities as models have not been updated in the past three years, in which time most of the distributed solar facilities in the United States have been installed. In that period, the Interstate Renewable Energy Council (IREC) has been a participant in more than thirty state utility commission rulemakings regarding interconnection and net metering of distributed generation. With the knowledge gained from this experience, IREC has updated its model procedures to incorporate current best practices. This paper presents the most significant changes made to IREC???¢????????s model interconnection and net metering procedures.

Jason Keyes, Kevin Fox, Joseph Wiedman, Staff at North Carolina Solar Center

2009-04-01T23:59:59.000Z

299

Reliability assessment of autonomous power systems incorporating HVDC interconnection links  

SciTech Connect

The objective of this paper is to present an improved computational method for the overall reliability assessment of autonomous power systems that may or may not contain HVdc interconnection links. This is a hybrid method based on a Monte-Carlo simulation sequential approach which incorporates an analytical approach for the reliability modeling of the HVdc transmission links. The developed models and techniques have been implemented into a computer program that can be used to simulate the operational practices and characteristics of the overall system under study efficiently and realistically. A set of reliability indices are calculated for each load-point of interest and the entire system while a set of additional indices is calculated for quantifying the reliability performance of the interconnection links under the specified operating requirements. The analysis of a practical system is also included for a number of studies representing its various operating and design characteristics.

Dialynas, E.N.; Koskolos, N.C. [National Technical Univ., Athens (Greece). Dept. of Electrical and Computer Engineering; Agoris, D. [Public Power Corp., Athens (Greece)

1996-01-01T23:59:59.000Z

300

Incorporating uncertainty in RADTRAN 6.0 input files.  

SciTech Connect

Uncertainty may be introduced into RADTRAN analyses by distributing input parameters. The MELCOR Uncertainty Engine (Gauntt and Erickson, 2004) has been adapted for use in RADTRAN to determine the parameter shape and minimum and maximum of the distribution, to sample on the distribution, and to create an appropriate RADTRAN batch file. Coupling input parameters is not possible in this initial application. It is recommended that the analyst be very familiar with RADTRAN and able to edit or create a RADTRAN input file using a text editor before implementing the RADTRAN Uncertainty Analysis Module. Installation of the MELCOR Uncertainty Engine is required for incorporation of uncertainty into RADTRAN. Gauntt and Erickson (2004) provides installation instructions as well as a description and user guide for the uncertainty engine.

Dennis, Matthew L.; Weiner, Ruth F.; Heames, Terence John (Alion Science and Technology)

2010-02-01T23:59:59.000Z

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301

I A STUDY OF THE WORKABILITY OF URANIUM BY MEANS OF TENSILE-IMPACT, HARDNESS, AND DROP-HAMMER  

Office of Legacy Management (LM)

A STUDY OF THE WORKABILITY OF URANIUM BY A STUDY OF THE WORKABILITY OF URANIUM BY MEANS OF TENSILE-IMPACT, HARDNESS, AND DROP-HAMMER I EVALUATIONS AT ELEVATED TEMPERATURES PROPOSAL TO NATIONAL LEAD COMPANY OF OHIO A STUDY OF THE WORKABILITY OF URANIUM BY MEANS OF TENSILE-IMPACT, HARDNESS, AND DROP-HAMMER EVALUATIONS AT ELEVATED TEMPERATURES PROPOSAL TO NATIONAL LEAD COMPANY OF OHIO Southern Research Institute Birmingham, Alabama January 30, 1963 Proposal No. 2152 Copy of original document Iccated in FEMP Archives. .L TABLEOFCONTENTS Page INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..I SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..z EQUIPMENT AND PROCEDURES . . . . . . . . . . . . . . . . . . . 3 A. Hot-Hardness Evaluations .................. 3

302

Incorporating Non-energy Benefits into Energy Savings Performance Contracts  

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

Non-energy Benefits into Energy Savings Performance Contracts Non-energy Benefits into Energy Savings Performance Contracts Title Incorporating Non-energy Benefits into Energy Savings Performance Contracts Publication Type Conference Paper Year of Publication 2012 Authors Larsen, Peter H., Charles A. Goldman, Donald Gilligan, and Terry E. Singer Conference Name 2012 ACEEE Summer Study on Energy Efficiency in Buildings Date Published 2012 Publisher ACEEE Conference Location Asilomar Conference Center, Pacific Grove, California Abstract This paper evaluates the issue of non-energy benefits within the context of the U.S. energy services company (ESCO) industry-a growing industry comprised of companies that provide energy savings and other benefits to customers through the use of performance-based contracting. Recent analysis has found that ESCO projects in the public/institutional sector, especially at K-12 schools, are using performance-based contracting, at the behest of the customers, to partially -- but not fully -- offset substantial accumulated deferred maintenance needs (e.g., asbestos removal, wiring) and measures that have very long paybacks (roof replacement). This trend is affecting the traditional economic measures policymakers use to evaluate success on a benefit to cost basis. Moreover, the value of non-energy benefits which can offset some or all of the cost of the non-energy measures -- including operations and maintenance (O&M) savings, avoided capital costs, and tradable pollution emissions allowances -- are not always incorporated into a formal cost-effectiveness analysis of ESCO projects. Non- energy benefits are clearly important to customers, but state and federal laws that govern the acceptance of these types of benefits for ESCO projects vary widely (i.e., 0-100% of allowable savings can come from one or more non-energy categories). Clear and consistent guidance on what types of savings are recognized in Energy Savings Agreements under performance contracts is necessary, particularly where customers are searching for deep energy efficiency gains in the building sector.

303

Radiative Impacts on the Growth of Drops within Simulated Marine Stratocumulus. Part II: Solar Zenith Angle Variations  

Science Conference Proceedings (OSTI)

The effects of solar heating at a variety of solar zenith angles (?o) on the vapor depositional growth of cloud drops, and hence the potential for collection enhancement, is investigated. A large eddy simulation (LES) model is used to predict the ...

Christopher M. Hartman; Jerry Y. Harrington

2005-07-01T23:59:59.000Z

304

Heat transfer and pressure drop data for high heat flux densities to water at high subcritical pressures  

E-Print Network (OSTI)

Local surface ooeffioients of heat t-ansfer, overall pressure drop data and mean friction factor are presented for heat flamms up to 3.52106 BtuAr ft2 for water flowing in a nickel tabe isder the following conditions: mass ...

Rohsenow, Warren M.

1951-01-01T23:59:59.000Z

305

Energy Conservation and Sustainability at Adobe Systems Incorporated  

E-Print Network (OSTI)

The purpose of this case study is to analyze a successful sustainability program run by an owner that has invested $23 million, received rebates of $10 million, accrued over $9 million of savings and has won top scores in LEED and Energy Star. This case study is based on project information supplied by the owner and structured interviews with the operational team. The project drivers are identified and analyzed based on payback characteristics. Finally, the case study puts Adobe Systems results within the context of the industry by matching it to the challenges identified in other reports. The results show: (1) 40 % of projects are initiated by operation management personnel; (2) the projects with the biggest savings are supported by third-party incentives; and (3) only 10 % of projects are evaluated by simulation and account for 12 % of annual savings. Performance benchmarking, using Energy Star, is a crucial step to determine the potential and priority of energy improvements and should be run annually. LEED EB is a valuable certification process when expanding conservation efforts beyond energy aspects to sustainability. Building owners can incorporate the methodologies applied to evaluate these successful projects into their buildings. Facility managers can leverage the findings to present the advantages of recertification and commissioning.

Sustainability; Robert Graebert; Martin Fischer; Robert Graebert A; Martin Fischer B

2011-01-01T23:59:59.000Z

306

Shale-oil-recovery systems incorporating ore beneficiation. Final report.  

SciTech Connect

This study analyzed the recovery of oil from oil shale by use of proposed systems which incorporate beneficiation of the shale ore (that is concentration of the kerogen before the oil-recovery step). The objective was to identify systems which could be more attractive than conventional surface retorting of ore. No experimental work was carried out. The systems analyzed consisted of beneficiation methods which could increase kerogen concentrations by at least four-fold. Potentially attractive low-enrichment methods such as density separation were not examined. The technical alternatives considered were bounded by the secondary crusher as input and raw shale oil as output. A sequence of ball milling, froth flotation, and retorting concentrate is not attractive for Western shales compared to conventional ore retorting; transporting the concentrate to another location for retorting reduces air emissions in the ore region but cost reduction is questionable. The high capital and energy cost s results largely from the ball milling step which is very inefficient. Major improvements in comminution seem achievable through research and such improvements, plus confirmation of other assumptions, could make high-enrichment beneficiation competitive with conventional processing. 27 figures, 23 tables.

Weiss, M.A.; Klumpar, I.V.; Peterson, C.R.; Ring, T.A.

1982-10-01T23:59:59.000Z

307

Free energy of colloidal particles at the surface of sessile drops  

E-Print Network (OSTI)

The influence of finite system size on the free energy of a spherical particle floating at the surface of a sessile droplet is studied both analytically and numerically. In the special case that the contact angle at the substrate equals $\\pi/2$ a capillary analogue of the method of images is applied in order to calculate small deformations of the droplet shape if an external force is applied to the particle. The type of boundary conditions for the droplet shape at the substrate determines the sign of the capillary monopole associated with the image particle. Therefore, the free energy of the particle, which is proportional to the interaction energy of the original particle with its image, can be of either sign, too. The analytic solutions, given by the Green's function of the capillary equation, are constructed such that the condition of the forces acting on the droplet being balanced and of the volume constraint are fulfilled. Besides the known phenomena of attraction of a particle to a free contact line and repulsion from a pinned one, we observe a local free energy minimum for the particle being located at the drop apex or at an intermediate angle, respectively. This peculiarity can be traced back to a non-monotonic behavior of the Green's function, which reflects the interplay between the deformations of the droplet shape and the volume constraint.

J. Guzowski; M. Tasinkevych; S. Dietrich

2010-07-14T23:59:59.000Z

308

Analyzing the BWR rod drop accident in high-burnup cores  

SciTech Connect

This study was undertaken for the US Nuclear Regulatory Commission to determine the fuel enthalpy during a rod drop accident (RDA) for cores with high burnup fuel. The calculations were done with the RAMONA-4B code which models the core with 3-dimensional neutron kinetics and multiple parallel coolant channels. The calculations were done with a model for a BWR/4 with fuel bundles having burnups up to 30 GWd/t and also with a model with bundle burnups to 60 GWd/t. This paper also discusses potential sources of uncertainty in calculations with high burnup fuel. One source is the ``rim`` effect which is the extra large peaking of the power distribution at the surface of the pellet. This increases the uncertainty in reactor physics and heat conduction models that assume that the energy deposition has a less peaked spatial distribution. Two other sources of uncertainty are the result of the delayed neutron fraction decreasing with burnup and the positive moderator temperature feedback increasing with burnup. Since these effects tend to increase the severity of the event, an RDA calculation for high burnup fuel will underpredict the fuel enthalpy if the effects are not properly taken into account. Other sources of uncertainty that are important come from the initial conditions chosen for the RDA. This includes the initial control rod pattern as well as the initial thermal-hydraulic conditions.

Diamond, D.J.; Neymotin, L.; Kohut, P.

1995-08-01T23:59:59.000Z

309

Incorporating Genomics and Bioinformatics across the Life Sciences Curriculum  

Science Conference Proceedings (OSTI)

Undergraduate life sciences education needs an overhaul, as clearly described in the National Research Council of the National Academies publication BIO 2010: Transforming Undergraduate Education for Future Research Biologists. Among BIO 2010's top recommendations is the need to involve students in working with real data and tools that reflect the nature of life sciences research in the 21st century. Education research studies support the importance of utilizing primary literature, designing and implementing experiments, and analyzing results in the context of a bona fide scientific question in cultivating the analytical skills necessary to become a scientist. Incorporating these basic scientific methodologies in undergraduate education leads to increased undergraduate and post-graduate retention in the sciences. Toward this end, many undergraduate teaching organizations offer training and suggestions for faculty to update and improve their teaching approaches to help students learn as scientists, through design and discovery (e.g., Council of Undergraduate Research [www.cur.org] and Project Kaleidoscope [www.pkal.org]). With the advent of genome sequencing and bioinformatics, many scientists now formulate biological questions and interpret research results in the context of genomic information. Just as the use of bioinformatic tools and databases changed the way scientists investigate problems, it must change how scientists teach to create new opportunities for students to gain experiences reflecting the influence of genomics, proteomics, and bioinformatics on modern life sciences research. Educators have responded by incorporating bioinformatics into diverse life science curricula. While these published exercises in, and guidelines for, bioinformatics curricula are helpful and inspirational, faculty new to the area of bioinformatics inevitably need training in the theoretical underpinnings of the algorithms. Moreover, effectively integrating bioinformatics into courses or independent research projects requires infrastructure for organizing and assessing student work. Here, we present a new platform for faculty to keep current with the rapidly changing field of bioinformatics, the Integrated Microbial Genomes Annotation Collaboration Toolkit (IMG-ACT). It was developed by instructors from both research-intensive and predominately undergraduate institutions in collaboration with the Department of Energy-Joint Genome Institute (DOE-JGI) as a means to innovate and update undergraduate education and faculty development. The IMG-ACT program provides a cadre of tools, including access to a clearinghouse of genome sequences, bioinformatics databases, data storage, instructor course management, and student notebooks for organizing the results of their bioinformatic investigations. In the process, IMG-ACT makes it feasible to provide undergraduate research opportunities to a greater number and diversity of students, in contrast to the traditional mentor-to-student apprenticeship model for undergraduate research, which can be too expensive and time-consuming to provide for every undergraduate. The IMG-ACT serves as the hub for the network of faculty and students that use the system for microbial genome analysis. Open access of the IMG-ACT infrastructure to participating schools ensures that all types of higher education institutions can utilize it. With the infrastructure in place, faculty can focus their efforts on the pedagogy of bioinformatics, involvement of students in research, and use of this tool for their own research agenda. What the original faculty members of the IMG-ACT development team present here is an overview of how the IMG-ACT program has affected our development in terms of teaching and research with the hopes that it will inspire more faculty to get involved.

Ditty, Jayna L.; Kvaal, Christopher A.; Goodner, Brad; Freyermuth, Sharyn K.; Bailey, Cheryl; Britton, Robert A.; Gordon, Stuart G.; Heinhorst, Sabine; Reed, Kelynne; Xu, Zhaohui; Sanders-Lorenz, Erin R.; Axen, Seth; Kim, Edwin; Johns, Mitrick; Scott, Kathleen; Kerfeld, Cheryl A.

2011-08-01T23:59:59.000Z

310

Incorporating Rigorous Height Determination into Unified Fracture Design  

E-Print Network (OSTI)

Hydraulic fracturing plays an important role in increasing production rate in tight reservoirs. The performance of the reservoir after fracturing can be observed from the productivity index. This parameter is dependent on the fracture geometry; height, length and width. Unified fracture design (UFD) offers a method to determine the fracture dimensions providing the maximum productivity index for a specific proppant amount. Then, in order to achieve the maximum productivity index, the treatment schedules including the amount of liquid and proppant used for each stage must be determined according to the fracture dimensions obtained from the UFD. The proppant number is necessary for determining the fracture geometry using the UFD. This number is used to find the maximum productivity index for a given proppant amount. Then, the dimensionless fracture conductivity index corresponding to the maximum productivity index can be computed. The penetration ration, the fracture length, and the propped fracture width can be computed from the dimensionless fracture conductivity. However, calculating the proppant number used in UFD requires the fracture height as an input. The most convenient way to estimate fracture height to input to the UFD is to assume that the fracture height is restricted by stress contrast between the pay zone and over and under-lying layers. In other words, the fracture height is assumed to be constant, independent of net pressure and equal to the thickness of the layer which has the least minimum principal stress. However, in reality, the fracture may grow out from the target formation and the height of fracture is dependent on the net pressure during the treatment. Therefore, it is necessary to couple determination of the fracture height with determination of the other fracture parameters. In this research, equilibrium height theory is applied to rigorously determine the height of fracture. Solving the problem iteratively, it is possible to incorporate the rigorous fracture height determination into the unified fracture design.

Pitakbunkate, Termpan

2010-08-01T23:59:59.000Z

311

Incorporating uncertainty into electric utility projections and decisions  

Science Conference Proceedings (OSTI)

This paper focuses on how electric utility companies can respond in their decision making to uncertain variables. Here we take a mean- variance type of approach. The mean'' value is an expected cost, on a discounted value basis. We assume that management has risk preferences incorporating a tradeoff between the mean and variance in the utility's net income. Decisions that utilities are faced with can be classified into two types: ex ante and ex post. The ex ante decisions need to be made prior to the uncertainty being revealed and the ex post decision can be postponed until after the uncertainty is revealed. Intuitively, we can say that the ex ante decisions provide a hedge against the uncertainties and the ex post decisions allow the negative outcomes of uncertain variables to be partially mitigated, dampening the losses. An example of an ex post decision is how the system is operated i.e., unit dispatch, and in some cases switching among types of fuels, say with different sulfur contents. For example, if gas prices go up, natural gas combined cycle units are likely to be dispatched at lower capacity factors. If SO{sub 2} emission allowance prices go up, a utility may seek to switch into a lower sulfur coal. Here we assume that regulated electric utilities do have some incentive to lower revenue requirements and hence an incentive to lower the electric rates needed for the utility to break even, thereby earning a fair return on invested capital. This paper presents the general approach first, including applications to capacity expansion and system dispatch. Then a case study is presented focusing on the 1990 Clean Air Act Amendments including SO{sub 2} emissions abatement and banking of allowances under uncertainty. It is concluded that the emission banking decisions should not be made in isolation but rather all the uncertainties in demand, fuel prices, technology performance etc., should be included in the uncertainty analysis affecting emission banking.

Hanson, D.A.

1992-01-01T23:59:59.000Z

312

Incorporating uncertainty into electric utility projections and decisions  

Science Conference Proceedings (OSTI)

This paper focuses on how electric utility companies can respond in their decision making to uncertain variables. Here we take a mean- variance type of approach. The ``mean`` value is an expected cost, on a discounted value basis. We assume that management has risk preferences incorporating a tradeoff between the mean and variance in the utility`s net income. Decisions that utilities are faced with can be classified into two types: ex ante and ex post. The ex ante decisions need to be made prior to the uncertainty being revealed and the ex post decision can be postponed until after the uncertainty is revealed. Intuitively, we can say that the ex ante decisions provide a hedge against the uncertainties and the ex post decisions allow the negative outcomes of uncertain variables to be partially mitigated, dampening the losses. An example of an ex post decision is how the system is operated i.e., unit dispatch, and in some cases switching among types of fuels, say with different sulfur contents. For example, if gas prices go up, natural gas combined cycle units are likely to be dispatched at lower capacity factors. If SO{sub 2} emission allowance prices go up, a utility may seek to switch into a lower sulfur coal. Here we assume that regulated electric utilities do have some incentive to lower revenue requirements and hence an incentive to lower the electric rates needed for the utility to break even, thereby earning a fair return on invested capital. This paper presents the general approach first, including applications to capacity expansion and system dispatch. Then a case study is presented focusing on the 1990 Clean Air Act Amendments including SO{sub 2} emissions abatement and banking of allowances under uncertainty. It is concluded that the emission banking decisions should not be made in isolation but rather all the uncertainties in demand, fuel prices, technology performance etc., should be included in the uncertainty analysis affecting emission banking.

Hanson, D.A.

1992-07-01T23:59:59.000Z

313

An Experimental Test of a Theoretical Model to Determine the Rate at which Freely Falling Water Drops Scavenge SO2 in Air  

Science Conference Proceedings (OSTI)

An experimental method involving the UCLA Rain Shaft is described. This method allows determining the rate at which SO2 is scavenged from air by freely falling water drops. In the present experiment water drops of radii near 300 ?m were allowed ...

C. Walcek; P. K. Wang; J. H. Topalian; S. K. Mitra; H. R. Pruppacher

1981-04-01T23:59:59.000Z

314

Spitzer Imaging of i'-drop Galaxies: Old Stars at z~6  

E-Print Network (OSTI)

We present new evidence for mature stellar populations with ages >100Myr in massive galaxies (M_stellar>10^10M_sun) seen at a time when the Universe was less than 1Gyr old. We analyse the prominent detections of two z~6 star-forming galaxies (SBM03#1 & #3) made at wavelengths corresponding to the rest-frame optical using the IRAC camera onboard the Spitzer Space Telescope. We had previously identified these galaxies in HST/ACS GOODS images of Chandra Deep Field South through the "i-drop" Lyman break technique, and subsequently confirmed spectroscopically with the Keck telescope. The new Spitzer photometry reveals significant Balmer/4000Ang discontinuities, indicative of dominant stellar populations with ages >100Myr. Fitting a range of population synthesis models (for normal initial mass functions) to the HST/Spitzer photometry yields ages of 250-650Myr and implied formation redshifts z~7.5-13.5 in presently-accepted world models. Remarkably, our sources have best-fit stellar masses of 1.3-3.8x10^10M_sun (95% confidence) assuming a Salpeter initial mass function. This indicates that at least some galaxies with stellar masses >20% of those of a present-day L* galaxy had already assembled within the first Gyr after the Big Bang. We also deduce that the past average star formation rate must be comparable to the current observed rate (SFR_UV~5-30M_sun/yr), suggesting that there may have been more vigorous episodes of star formation in such systems at higher redshifts. Although a small sample, limited primarily by Spitzer's detection efficiency, our result lends support to the hypothesis advocated in our earlier analyses of the Ultra Deep Field and GOODS HST/ACS data. The presence of established systems at z~6 suggests long-lived sources at earlier epochs (z>7) played a key role in reionizing the Universe.

Laurence Eyles; Andrew Bunker; Elizabeth Stanway; Mark Lacy; Richard Ellis; Michelle Doherty

2005-02-18T23:59:59.000Z

315

Incorporating HVDC's into monitoring and power system analysis  

E-Print Network (OSTI)

This thesis attempts to study the effect of incorporating HVDC's into monitoring and power system analysis. Power system analysis, including load flow and stability studies, and monitoring defines a complete cycle of the impact of HVDC in a power system network. Load flow calculates the bus voltage magnitude, phase angle, active and reactive power flows based on loads and generations that are already specified. In this regard, our work presents a better way of solving AC - DC load flow equations. In our work, the active and reactive power consumptions of the HVDC link are treated as a function of AC bus voltages and some specified DC parameters. It is then easier to combine the DC part with the AC system. Traditional methods in this regard may encounter convergence problems. We expect that the method used in our work does not encounter convergence problems and is easier to implement. Whereas load flow gives us the solution for bus voltage magnitudes and angles based on certain specified loads and generations, state estimation obtains an estimate of the bus voltage magnitudes and angles based on actual measurements. A state estimator also checks consistency of instrumentation data. In our work with the state estimation, we have presented a new method to design the measurement set of an AC - DC system and explained the choice of the state variables used. The state variables and the measurement set chosen are then used to estimate the state of an AC - DC system. To complete the cycle of the effects of inclusion of a HVDC line in an AC system, we study the impact of HVDC on power system stability in the case of a fault. It should be noted that the power flow through a HVDC link is highly controllable. Accordingly, we can expect the HVDC to improve system stability if it is controlled intelligently. However, if the control measure is not properly designed, HVDC can be detrimental to the system stability. A case has been studied where the HVDC tends to make the system unstable if the setting of the line is not changed during and after a fault. We then propose a control mechanism to strengthen the system stability. Two types of controllers, namely proportional control and proportional - integral control have been studied and compared. Also we have shown their effects on the system stability.

Krishnaswamy, Vikram

2002-01-01T23:59:59.000Z

316

A study of pressure drop in a Capillary tube-viscometer for a two-phase flow  

SciTech Connect

The analysis of pipeline transportation of highly concentrated suspensions such as coal-water slurries, can exhibit several flow characteristics depending on the concentration and the physical parameters of the dispersed phase. Experiments were conducted for coal-water slurries flows in a series of horizontal capillary tubes of diameters 0.8, 1.5 and 3.0 mm and 100 mm in length, in order to investigate the effect of concentration, pressure drop, and the transitional Reynolds number from laminar to turbulent flow in a homogeneous slurry. The solid concentration was varied from 15% to 63% in 0.1% xanthum gum solution. Pressure drop and the volume flow measurement were made using HVA-6 Capillary viscometer. The Reynolds numbers obtained were found to be dependent on the slurry concentration and the viscosity of the slurry mixture, but independent of the capillary diameter.

Ohene, F.; Livingston, C.; Matthews, C.; Rhone, Y.

1995-09-01T23:59:59.000Z

317

A Conical Tear Drop as a Vacuum-Energy Drain for the Solution of the Cosmological Constant Problem  

E-Print Network (OSTI)

We propose a partial solution to the cosmological constant problem by using the simple observation that a three-brane in a six-dimensional bulk is flat. A model is presented in which Standard Model vacuum energy is always absorbed by the transverse space. The latter is a tear-drop like space with a conical singularity, which preserves bulk supersymmetry and gives rise to conventional macroscopic 4D gravity with no cosmological constant. Its cone acts like a drain, depleting vacuum energy from the three-brane to the tear drop increasing its volume. We stress that although gravity is treated classically, Standard Model is handled quantum-field theoretically and the model is robust against Standard Model corrections and particular details. The price paid is the presence of boundaries which are nevertheless physically harmless by appropriate boundary conditions.

Alex Kehagias

2004-06-02T23:59:59.000Z

318

Jetting, In-Nozzle Meniscus Motion and Nozzle-Plate Flooding in an Industrial Drop-on-Demand Print Head  

E-Print Network (OSTI)

-up of fluid in an annulus around the nozzle (flooding rate) has been characterized and compared with models for the net ink flow through the nozzle. Introduction In a commercial drop-on-demand (DOD) inkjet print head, the ink meniscus at nozzles... . The flash, focused by a condenser, illuminates the nozzles about 21 degrees off-axis from the opposite direction. The arrangement is configured to maximize the illumination reaching the camera lens within the space constraints. A protective glass plate...

Hsiao, W.-K.; Hoath, S.D.; Martin, G.D.; Hutchings, I.M.

2011-01-01T23:59:59.000Z

319

Heat transfer and pressure drop measurements in an air/molten salt direct-contact heat exchanger  

SciTech Connect

This paper presents a comparison of experimental data with a recently published model of heat exchange in irrigated packed beds. Heat transfer and pressure drop were measured in a 150 mm (ID) column with a 610-mm bed of metal Pall rings. Molten nitrate salt and preheated air were the working fluids with a salt inlet temperature of approximately 440{degree}C and air inlet temperatures of approximately 230{degree}C. A comparison between the experimental data and the heat transfer model is made on the basis of heat transfer from the salt. For the range of air and salt flow rates tested, 0.3 to 1.2 kg/m{sup 2} s air flow and 6 to 18 kg/m{sup 2} s salt flow, the data agree with the model within 22% standard deviation. In addition, a model for the column pressure drop was validated, agreeing with the experimental data within 18% standard deviation over the range of column pressure drop from 40 to 1250 Pa/m. 25 refs., 7 figs., 2 tabs.

Bohn, M.S.

1988-11-01T23:59:59.000Z

320

Downward two-phase flow effects in heat-loss and pressure-drop modeling of steam injection wells  

SciTech Connect

Modelling of the pressure drop and heat loss in steam injection wells has undergone a gradual evolution since the heavy interest in enhanced oil recovery by steam injection in the mid-60's. After briefly reviewing the evolution of steam models this paper presents a model which advances the state-of-the-art of steam modelling. The main advance presented in this paper is modelling the effects of the various flow regimens that occur during steam injection. The paper describes the formulation of a two-phase downward vertical flow pressure drop model which is not limited by the ''no-slip'' homogeneous flow assumptions in most previously published models. By using different correlations for mist, bubble, and slug flow, improved pressure drop calculations result, which in turn improve temperature predictions. The paper describes how the model handles temperature predictions differently in the single and two-phase steam flow situations. The paper also describes special features in the model to account for layered soil properties, soil dry out, cyclic injection, coupling heat losses, and reflux boiling in wet annuli. Two examples problems are presented which illustrate some of these features.

Galate, J.W.; Mitchell, R.F.

1985-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "hughes incorporated dropped" 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

Pressure drop of two-phase plug flow in round mini-channels: Influence of surface wettability  

SciTech Connect

In the present experimental study, the pressure drop of two-phase plug flows in round mini-channels was investigated for three different tube materials, i.e., glass, polyurethane and Teflon, respectively, with their inner diameters ranging from 1.62 to 2.16 mm. Air and water were used as the test fluids. In the wet-plug flow regime (wet wall condition at the gas portions), the pressure drop was reasonably predicted by the homogeneous flow model or by the correlations of Mishima and Hibiki [K. Mishima, T. Hibiki, Some characteristics of air-water two-phase flow in small diameter vertical tubes, Int. J. Multiphase Flow 22 (1996) 703-712] and Chisholm [D. Chisholm, A theoretical basis for the Lockhart-Martinelli correlation for two-phase flow, Int. J. Heat Mass Transfer 10 (1967) 1767-1778]. On the other hand, in the dry-plug flow regime (dry wall condition at the gas portions), the role of the moving contact lines turned out to be significant. To take into account the effect of the moving contact lines, a modified Lockhart-Martinelli type correlation was proposed, which fitted the measured pressure-drop data within the mean deviation of 6%. (author)

Lee, Chi Young; Lee, Sang Yong [Department of Mechanical Engineering, KAIST, Science Town, Daejeon 305-701 (Korea)

2008-09-15T23:59:59.000Z

322

Pressure drop of two-phase dry-plug flow in round mini-channels: Effect of moving contact line  

SciTech Connect

In the present experimental study, the pressure drop of the two-phase dry-plug flow (dry wall condition at the gas portions) in round mini-channels was investigated. The air-water mixtures were flowed through the round mini-channels made of polyurethane and Teflon, respectively, with their inner diameters ranging from 1.62 to 2.16 mm. In the dry-plug flow regime, the pressure drop measured became larger either by increasing the liquid superficial velocity or by decreasing the gas superficial velocity due to the increase of the number of the moving contact lines in the test section. In such a case, the role of the moving contact lines turned out to be significant. Therefore, a pressure drop model of dry-plug flow was proposed through modification of the dynamic contact angle analysis taking account of the energy dissipation by the moving contact lines, which represents the experimental data within the mean deviation of 4%. (author)

Lee, Chi Young; Lee, Sang Yong [Department of Mechanical Engineering, KAIST, Science Town, Daejeon 305-701 (Korea)

2010-01-15T23:59:59.000Z

323

Quantifying the system balancing cost when wind energy is incorporated into electricity generation system.  

E-Print Network (OSTI)

??Incorporation of wind energy into the electricity generation system requires a detailed analysis of wind speed in order to minimize system balancing cost and avoid (more)

Issaeva, Natalia

2009-01-01T23:59:59.000Z

324

Incorporating Voltage Fluctuations of the Power Distribution Network into the Transient Analysis of CMOS Logic Gates  

Science Conference Proceedings (OSTI)

Decreased power supply levels have reduced the tolerance to voltage changes within power distribution networks in CMOS integrated circuits. High on-chip currents, required to charge and discharge large on-chip loads while operating at high frequencies, ... Keywords: IR drops, power distribution network, system-on-a-chip

Kevin T. Tang; Eby G. Friedman

2002-05-01T23:59:59.000Z

325

An Experimental Investigaton of the Effect of Oil on Convective Heat Trasfer and Pressure Drop of a HFC-32/HRC-125 Mixture  

E-Print Network (OSTI)

The heat transfer coefficients and pressure drops of HCFC-22 and a 50% mass mixture of HFC-32/HFC-125 were experimentally measured under flow boiling conditions in a smooth tube. The refrigerants were flowed through an 8 mm diameter smooth tube at mass fluxes of 277, 434, 520 and 700 kg/sm^2. Heat fluxes were applied at values of 5100, 7100 and 11000 W/m^2. The heat transfer coefficients and pressure drops were measured at refrigerant qualities of 10, 15, 20, 25, 30, 40 and 60 percent. The refrigerants were examined at temperatures near 4C. Oil was added to the HFC-32/HFC-125 mixture in concentrations of 2.6% and 5.4%. Experiments were repeated with the oil laden refrigerant. The heat transfer coefficients for HCFC-22 increased with quality, mass flux and heat flux. The heat transfer coefficients for HFC-32/HFC-125 often decreased at low qualities and increased with quality at high qualities. The pressure drop increased with quality and mass flux for both refrigerants. The heat transfer had a minimal effect upon pressure drop. HFC-32/HFC-125 had a lower pressure drop than HCFC-22 for all conditions. The addition of oil increased the pressure drop. A pressure drop correlation and heat transfer correlation were developed for HFC-32/HFC-125.

McJimsey, Bert Ashford

1994-12-01T23:59:59.000Z

326

Incorporating oligopoly, CO2 emissions trading and green certificates into a power generation expansion model  

Science Conference Proceedings (OSTI)

This paper presents a generation expansion model for the power sector which incorporates several features that make it very interesting for application to current electricity markets: it considers the possible oligopolistic behavior of firms, and incorporates ... Keywords: Carbon emissions trading, Generation-expansion modeling, Green certificates, Oligopoly

Pedro Linares; Francisco Javier Santos; Mariano Ventosa; Luis Lapiedra

2008-06-01T23:59:59.000Z

327

Development of a dissolved carbon dioxide sensor with a HPTS-incorporated polymer membrane  

Science Conference Proceedings (OSTI)

In this study a dissolved carbon dioxide sensor is made by using the fluorescent dye, HPTS incorporated into a polymer matrix, polyHEMA-co-EGDA. The HPTS-incorporated polymer membrane soaking in sodium bicarbonate buffer solution is put into a well in ... Keywords: carbon dioxide, fermentation, fluorescence, polymer membrane, sensor

Ok-Jae Sohn; Jong Il Rhee

2008-11-01T23:59:59.000Z

328

Preliminary Notice of Violation, EG&G Incorporated - EA-97-10 | Department  

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

EG&G Incorporated - EA-97-10 EG&G Incorporated - EA-97-10 Preliminary Notice of Violation, EG&G Incorporated - EA-97-10 October 21, 1997 Preliminary Notice of Violation issued to EG&G Incorporated, related to Bioassay and Internal Dosimetry Program Deficiencies at the Mound Plant, (EA-97-10) This letter refers to the Department of Energy's (DOE) evaluation of the facts and circumstances surrounding a number of potential programmatic deficiencies involving the administration of the Mound Plant's bioassay program and methodologies used for determining and assigning internal radiation doses to workers. Preliminary Notice of Violation, EG&G Incorporated - EA-97-10 More Documents & Publications Preliminary Notice of Violation, Babcock & Wilcox of Ohio, Inc - EA-98-12

329

A capacitor-less low drop-out voltage regulator with fast transient response  

E-Print Network (OSTI)

Power management has had an ever increasing role in the present electronic industry. Battery powered and handheld applications require power management techniques to extend the life of the battery and consequently the operation life of the device. Most systems incorporate several voltage regulators which supply various subsystems and provide isolation among such subsystems. Low dropout (LDO) voltage regulators are generally used to supply low voltage, low noise analog circuitry. Each LDO regulator demands a large external capacitor, in the range of a few microfarads, to perform. These external capacitors occupy valuable board space, increase the IC pin count, and prohibit system-on-chip (SoC) solutions. The presented research provides a solution to the present bulky external capacitor LDO voltage regulators with a capacitor-less LDO architecture. The large external capacitor was completely removed and replaced with a reasonable 100pF internal output capacitor, allowing for greater power system integration for SoC applications. A new compensation scheme is presented that provides both a fast transient response and full range ac stability from a 0mA to 50mA load current. A 50mA, 2.8V, capacitor-less LDO voltage regulator was fabricated in a TSMC 0.35um CMOS technology, consuming only 65uA of ground current with a dropout voltage of 200mV. Experimental results show that the proposed capacitor-less LDO voltage regulator exceeds the current published works in both transient response and ac stability. The architecture is also less sensitive to process variation and loading conditions. Thus, the presented capacitor-less LDO voltage regulator is suitable for SoC solutions.

Milliken, Robert Jon

2005-12-01T23:59:59.000Z

330

An Investigation of the Influence of Droplet Number Concentration and Giant Aerosol Particles upon Supercooled Large Drop Formation in Wintertime Stratiform Clouds  

Science Conference Proceedings (OSTI)

Supercooled large drops (SLD) can be a significant hazard for aviation. Past studies have shown that warm-rain processes are prevalent, or even dominant, in stratiform clouds containing SLD, but the primary factors that control SLD production are ...

Sonia Lasher-Trapp; Sarah Anderson-Bereznicki; Ashley Shackelford; Cynthia H. Twohy; James G. Hudson

2008-10-01T23:59:59.000Z

331

A Numerical Study of the Effect of Electric Charges on the Efficiency with which Planar Ice Crystals Collect Supercooled Cloud Drops  

Science Conference Proceedings (OSTI)

A theoretical model is presented which allows determination of the efficiency with which electrically charged, simple planar ice crystals collide with electrically charged supercooled cloud drops. The calculations are carried out for ice crystal ...

J. J. Martin; P. K. Wang; H. R. Pruppacher; R. L. Pitter

1981-11-01T23:59:59.000Z

332

Influence of the time-dependent surfactant adsorption on the lifetime of a drop pressed by buoyancy against a planar interface  

E-Print Network (OSTI)

Emulsion Stability Simulations (ESS) of deformable droplets are used to study the influence of the time-dependent adsorption on the coalescence time of a 200-$\\mu$m drop of soybean oil pressed by buoyancy against a planar water/oil interface. The interface is represented by a 5000-$\\mu$m drop of oil fixed in the space. The movement of the small drop is determined by the interaction forces between the drops, the buoyancy force, and its thermal interaction with the solvent. The interaction forces depend on the surface concentration of surfactant molecules at the oil/water interfaces. Assuming diffusion limited adsorption, the surface excess of the surfactant becomes a function of its apparent diffusion constant, $D_{app}$. Distinct probability distributions of the coalescence time are obtained depending on the magnitude of $D_{app}$. The origin and the significance of these distributions are discussed.

Clara Rojas; Maximo Garcia-Sucre; German Urbina-Villalba

2013-05-23T23:59:59.000Z

333

An Analysis of Errors in Drop Size Distribution Retrievals and Rain Bulk Parameters with a UHF Wind Profiling Radar and a Two-Dimensional Video Disdrometer  

Science Conference Proceedings (OSTI)

Vertically pointed wind profiling radars can be used to obtain measurements of the underlying drop size distribution (DSD) for a rain event by means of the Doppler velocity spectrum. Precipitation parameters such as rainfall rate, radar ...

Laura Kanofsky; Phillip Chilson

2008-12-01T23:59:59.000Z

334

Natural Gas - U.S. Energy Information Administration (EIA) - U.S. Energy  

Gasoline and Diesel Fuel Update (EIA)

23, 2012 | Release Date: May 24, 23, 2012 | Release Date: May 24, 2012 | Next Release: May 31, 2012 Previous Issues Week: 01/19/2014 (View Archive) JUMP TO: In The News | Overview | Prices/Demand/Supply | Storage In the News: Natural Gas Rig Count Briefly Drops Below 600. The natural gas rotary rig count, as reported by Baker Hughes Incorporated, rose by 2 this week to 600, after falling to a 10-year low of 598 last week. After increasing modestly to 936 active rigs in the fall of 2011, the natural gas rig count has dropped sharply. The oil rig count, currently at 1,382, has generally risen steadily since 2009, largely in response to increasing crude oil prices. Natural gas rigs are currently down about 31 percent from their level at the same time last year, while oil rigs have risen by 45 percent over the

335

Assessing Natural Isothiocyanate Air Emissions after Field Incorporation of Mustard Cover Crop  

Science Conference Proceedings (OSTI)

A regional air assessment was performed to characterize volatile natural isothiocyanate (NITC) compounds in air during soil incorporation of mustard cover crops in Washington State. Field air sampling and analytical methods were developed specific to three NITCs known to be present in air at appreciable concentrations during/after field incorporation. The maximum observed concentrations in air for the allyl, benzyl, and phenethyl isothiocyanates were respectively 188, 6.1, and 0.7 lg m-3 during mustard incorporation. Based on limited inhalation toxicity information, airborne NITC concentrations did not appear to pose an acute human inhalation exposure concern to field operators and bystanders.

Trott, Donna M.; LePage, Jane; Hebert, Vincent

2012-01-01T23:59:59.000Z

336

Hughes County, Oklahoma: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

96.3226072° 96.3226072° 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":35.1380279,"lon":-96.3226072,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

337

Hughes County, South Dakota: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

022°, -99.8124935° 022°, -99.8124935° 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":44.3535022,"lon":-99.8124935,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

338

STATEMENT OF CONSIDERATIONS REQUEST BY BAKER HUGHES INTEQ FOR...  

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

effective Coiled Tubing Drilling (CTD) system that allows operators to produce existing oil reservoirs, mainly on the North American continent, in a much more effective way than...

339

Market Power in Ethanol Transport Jonathan E. Hughes  

E-Print Network (OSTI)

. (2008) · Low sulfur coal, Busse and Keohane (forthcoming) GIS MAP OF U.S. RAILROAD NETWORK MOTIVATION, ethanol is used voluntarily in "economic blending" when the (subsidized) price of ethanol is lower than

California at Davis, University of

340

McHugh Energy Consultants HVAC Trajectories toward Zero  

E-Print Network (OSTI)

2022 2026 Required Economizer + FDD Econ Charge FDD + Multi-speed VRF VFD Fan Evap Cond SEER 10 SEER 13

California at Davis, University of

Note: This page contains sample records for the topic "hughes incorporated dropped" 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

Interview with Stephen Hugh-Jones Part 1  

E-Print Network (OSTI)

to King's I worked on the Victoria line which was being built to save for a trip to South America; with help from parents went to Venezuela by boat; found it extraordinarily expensive; on the boat had met an English school teacher and his wife who were...

Hugh-Jones, Stephen

2007-05-04T23:59:59.000Z

342

La Revolucin del Shale Gas Profesor: Hugh Rudnick  

E-Print Network (OSTI)

: Horizontal drilling e hydraulic fracturing Hydraulic Fracturing También llamado fracking o hydrofracking. El

Rudnick, Hugh

343

Hugh Rudnick Van De Wyngard Seminario Hay crisis energtica?  

E-Print Network (OSTI)

Licuado #12;Otras Alternativas de Expansión: ERNC · Mini hidraúlicas · Eólico · Geotérmicas · Biogas

Catholic University of Chile (Universidad Católica de Chile)

344

Development of Correlations for Pressure Loss/Drop Coefficients Obtained From Flow Testing of Fuel Assemblies in Framatome ANP's PHTF  

SciTech Connect

Thermal-hydraulic analyses of pressurized water reactor (PWR) and boiling water reactor (BWR) fuel assemblies are generally performed for either assembly thermal-hydraulic design, thermal-hydraulic compatibility evaluation, or cycle licensing thermal-hydraulic characterization. A key issue in all cases is the hydraulic resistance characterization of the assembly in which the assembly, its components and support plates, etc., are represented by their respective pressure loss and pressure drop coefficients. These hydraulic coefficients can be determined by single-phase flow testing in an experimental facility such as the Framatome ANP Portable Hydraulic Test Facility (PHTF) located at Richland Test Facilities (RTF) in Richland, WA. The goal of this paper is to present a uniform and consistent methodology for the development of coefficient correlations from data obtained from single phase pressure drop testing of PWR and BWR fuel assemblies and their components performed in the PHTF. This methodology reflects the years of accumulated experience from an existing facility with an ongoing test program. (authors)

Madni, Imtiaz K.; Stephens, Lance G.; Turner, Dave M. [Framatome ANP Inc. (United States)

2002-07-01T23:59:59.000Z

345

Modifying a Mesoscale Meteorological Model to Better Incorporate Urban Heat Storage: A Bulk-Parameterization Approach  

Science Conference Proceedings (OSTI)

A simple bulk-parameterization scheme is implemented in modifying a mesoscale meteorological model to better incorporate urban heat storage. The objective is to improve the quantification of the fluxes associated with heat storage change and to ...

Haider Taha

1999-04-01T23:59:59.000Z

346

Preliminary Notice of Violation, Fluor Hanford, Incorporated - EA-2002-03 |  

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

Hanford, Incorporated - Hanford, Incorporated - EA-2002-03 Preliminary Notice of Violation, Fluor Hanford, Incorporated - EA-2002-03 August 12, 2002 Preliminary Notice of Violation issued to Fluor Hanford, Incorporated, related to Quality Assurance issues at the Hanford Site. This letter refers to the Department of Energy's (DOE) investigation of the facts and circumstances concerning quality assurance issues affecting nuclear safety surrounding the discrepant nondestructive assay (NDA) data provided to Bechtel Hanford, Inc., in support of their decontamination and dismantlement activities at Building [ ]. The DOE Office of Price-Anderson Enforcement initiated an investigation of this event in July 2001. A formal request for relevant documentation was made and a full review of the documentation was conducted. In addition,

347

Source Characterization with a Genetic AlgorithmCoupled DispersionBackward Model Incorporating SCIPUFF  

Science Conference Proceedings (OSTI)

This paper extends the approach of coupling a forward-looking dispersion model with a backward model using a genetic algorithm (GA) by incorporating a more sophisticated dispersion model [the Second-Order Closure Integrated Puff (SCIPUFF) model] ...

Christopher T. Allen; Sue Ellen Haupt; George S. Young

2007-03-01T23:59:59.000Z

348

Guidance on Incorporating EPA's Pollution Prevention Strategy into the Environmental Review Process  

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

The guidance discusses the Environmental Protection Agency's definition of pollution prevention; how to incorporate pollution prevention into the EPA environmental review process and interagency liaison function; and federal pollution prevention awards programs.

349

Incorporation of CO2 Exchange Processes into a Multilayer AtmosphereSoilVegetation Model  

Science Conference Proceedings (OSTI)

Carbon dioxide (CO2) exchange processes were incorporated into a multilayer atmospheresoilvegetation model known as SOLVEG, and its performance was examined using measurements obtained from a grassland site. It was also applied for the CO2 ...

Haruyasu Nagai

2005-10-01T23:59:59.000Z

350

Shale oil recovery systems incorporating ore beneficiation : final report, October 1982  

E-Print Network (OSTI)

This study analyzed the recovery of oil from oil shale by use of proposed systems which incorporate beneficiation of the shale ore (that is, concentration of the kerogen) before the oil-recovery step. The objective was to ...

Weiss, M. A.

1982-01-01T23:59:59.000Z

351

Incorporating endogenous demand dynamics into long-term capacity expansion power system models for Developing countries  

E-Print Network (OSTI)

This research develops a novel approach to long-term power system capacity expansion planning for developing countries by incorporating endogenous demand dynamics resulting from social processes of technology adoption. ...

Jordan, Rhonda LeNai

2013-01-01T23:59:59.000Z

352

Incorporation of scattered radiation into dual?energy radiologic theory and application to mammography  

Science Conference Proceedings (OSTI)

A previous analysis of dual?energy imaging is extended to incorporate scattered radiation. The analysis is general and can include polyenergetic beams and nonideal detectors. In the dual?material basis plane

Paul C. Johns

1994-01-01T23:59:59.000Z

353

Incorporation of a Cloud Simulation into a Flight Mission Rehearsal System: Prototype Demonstration  

Science Conference Proceedings (OSTI)

One environmental parameter that has a large impact on aircraft missions for the U.S. military is clouds. This article describes an initial attempt to incorporate physically consistent clouds into a flight mission rehearsal system. A cloud model ...

Louis Hembree; Sam Brand; William C. Mayse; Maureen Cianciolo; Brian Soderberg

1997-05-01T23:59:59.000Z

354

Incorporation of plug in hybrid electric vehicle in the reactive power market  

Science Conference Proceedings (OSTI)

This paper incorporates plug in hybrid electric vehicle(PHEV) in the reactive power market. The PHEV capability curve is first extracted considering the operation limit of PHEV. In order to offer price in the reactive power market

H. Feshki Farahani; H. A. Shayanfar; M. S. Ghazizadeh

2012-01-01T23:59:59.000Z

355

VEE-0092 - In the Matter of Cargill, Incorporated. | Department of Energy  

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

2 - In the Matter of Cargill, Incorporated. 2 - In the Matter of Cargill, Incorporated. VEE-0092 - In the Matter of Cargill, Incorporated. This Decision decides the merits of five Applications for Exception filed with the Office of Hearings and Appeals (OHA) of the U.S. Department of Energy (DOE) under the provisions of 10 C.F.R. § 1003.20. See infra Appendix. These Applications concern annual revenues and sales data pertaining to each firm's sale of electricity that the DOE Energy Information Administration (EIA) collects through Form EIA-861, "Annual Electric Power Industry Report." EIA publishes this data, by state, in firm-specific form. The present exception request seeks to have the Applicants' data withheld as confidential. In their Applications for Exception, the Applicants incorporated an Application for Stay to prevent release of some of the

356

Incorporation of sulfur, chlorine, and carbon into electroplated Cu thin films  

Science Conference Proceedings (OSTI)

The microstructure of electroplated Cu thin films and the contamination with incorporated additives were investigated in dependence on the galvanostatic deposition parameters and thermal treatment. Sulfur, chlorine, and carbon were analysed as impurities ... Keywords: 61.72.Ss, 66.30.Jt, 68.35.Dv, 68.43.Mn, 81.15.Pq, 82.45.Vp, 85.40.Ls, Additive incorporation, Additive surface adsorption, Copper, Electrochemical deposition, Impurities

M. Stangl; J. Acker; S. Oswald; M. Uhlemann; T. Gemming; S. Baunack; K. Wetzig

2007-01-01T23:59:59.000Z

357

ICM, Incorporated  

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

and process flow innovations to refine terrestrial lignocellulosic biomass into fuel ethanol. The proposed process furthers the cost effective production of ethanol from...

358

Effects of a potential drop of a shipping cask, a waste container, and a bare fuel assembly during waste-handling operations; Yucca Mountain Site Characterization Project  

Science Conference Proceedings (OSTI)

This study investigates the effects of potential drops of a typical shipping cask, waste container, and bare fuel assembly during waste-handling operations at the prospective Yucca Mountain Repository. The waste-handling process (one stage, no consolidation configuration) is examined to estimate the maximum loads imposed on typical casks and containers as they are handled by various pieces of equipment during waste-handling operations. Maximum potential drop heights for casks and containers are also evaluated for different operations. A nonlinear finite-element model is employed to represent a hybrid spent fuel container subject to drop heights of up to 30 ft onto a reinforced concrete floor. The impact stress, strain, and deformation are calculated, and compared to the failure criteria to estimate the limiting (maximum permissible) drop height for the waste container. A typical Westinghouse 17 {times} 17 PWR fuel assembly is analyzed by a simplified model to estimate the energy absorption by various parts of the fuel assembly during a 30 ft drop, and to determine the amount of kinetic energy in a fuel pin at impact. A nonlinear finite-element analysis of an individual fuel pin is also performed to estimate the amount of fuel pellet fracture due to impact. This work was completed on May 1990.

Wu, C.L.; Lee, J.; Lu, D.L.; Jardine, L.J. [Bechtel National, Inc., San Francisco, CA (United States)

1991-12-01T23:59:59.000Z

359

Computational and experimental investigation of the drag reduction and the components of pressure drop in horizontal slug flow using liquids of different viscosities  

SciTech Connect

Computational and experimental investigation in 10-cm ID horizontal pipes have been carried out utilizing carbon dioxide as the gas phase and two types of oil with different viscosities; namely 0.0025Pas and 0.05Pas, as the liquid phase. The influence of oil viscosity on the magnitude of total pressure drop and each of its components as well as the effectiveness of a drag reducing additive (DRA, CDR WS 500M flow improver) in decreasing the pressure loss was investigated in two-phase oil-gas slug flow. The effects of changing oil viscosity on the contribution of frictional and accelerational components to total pressure drop in slug flow were also examined and analyzed. Computations of accelerational and frictional components of pressure drop were performed. The accelerational component of pressure drop was dominant in the 0.0025Pas oil while the frictional component had significant contributions in the 0.05Pas oil. Despite the fact that the magnitude of drag reduction was higher in the 0.05Pas oil, the DRA was more effective in reducing the total pressure drop and its components in the 0.0025Pas oil. (author)

Daas, Mutaz [Hemispheric Center for Environmental Technology, Florida International University, 10555 West Flagler Street, Suite 2100, Miami, FL 33174 (United States); Bleyle, Derek [Ohio University, 9933 State Route 682 Athens, OH 45701 (United States)

2006-03-01T23:59:59.000Z

360

Advanced turbine systems program conceptual design and product development: Task 8.1, Low-pressure drop recuperator  

DOE Green Energy (OSTI)

Purpose of the ATS program is to develop a new baseline for industrial gas turbine systems for the 21st century. A recuperated gas turbine cycle was selected; the eventual engine that result will utilize Solar`s Primary Surface Recuperator (PSR) technology. Besides higher thermal efficiency, other goals included lower emission, cost of power, and improved RAMD (reliability, availability, maintainability). Performance data have been obtained for the candidate heat transfer surface, and on a scaled rig. Pretest predictions of air-side and gas-side pressure drop were in very good agreement with tests results; predicted effectiveness also agreed well with experiment. A flattened tube test to determine changes of the PSR heat transfer surface profile after exposure is underway.

NONE

1995-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "hughes incorporated dropped" 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

First measurement of the small-scale spatial variability of the rain drop size distribution: Results from a crucial experiment and maximum entropy modeling  

E-Print Network (OSTI)

The main challenges of measuring precipitation are related to the spatio-temporal variability of the drop-size distribution, to the uncertainties that condition the modeling of that distribution, and to the instrumental errors present in the in situ estimations. This PhD dissertation proposes advances in all these questions. The relevance of the spatial variability of the drop-size distribution for remote sensing measurements and hydro-meteorology field studies is asserted by analyzing the measurement of a set of disdrometers deployed on a network of 5 squared kilometers. This study comprises the spatial variability of integral rainfall parameters, the ZR relationships, and the variations within the one moment scaling method. The modeling of the drop-size distribution is analyzed by applying the MaxEnt method and comparing it with the methods of moments and the maximum likelihood. The instrumental errors are analyzed with a compressive comparison of sampling and binning uncertainties that affect actual device...

Checa-Garcia, Ramiro

2013-01-01T23:59:59.000Z

362

Genetic Incorporation of Noncanonical Amino Acids into Proteins for Protein Function Investigation  

E-Print Network (OSTI)

With the objective to functionalize proteins for the understanding of their biological roles and developing protein-based biosensors, I have been developing methods to synthesize proteins with defined modifications and applying them to study protein functional roles and generate proteins with new properties. These methods rely on the read-through of an in-frame stop codon in mRNA by a nonsense suppressor tRNA specifically acylated with a noncanoncial amino acid (NAA) by a unique aminoacyl-tRNA synthetase and the genetic incorporation of this NAA at the stop codon site. NAAs either provide chemical handles for site-specific manipulation or mimic the posttranslational modifications, which are critical for understanding cellular regulations and signal transduction. The pyrrolysine synthetase (PylRS) has been wildly used to incorporate NAAs into proteins in E. coli. Taking advantage of PylRS, I have developed method to genetically incorporate ketone-containing N-?-acetyl-L-lysine analog, 2-amino-8-oxononanoic acid (KetoK), into proteins for their site-specific modifications and used it to mimic the protein lysine acetylation process. I have also modified the ribosome in order to improve the amber suppression efficiency and therefore to achieve incorporation of multiple copies of NAA into one protein. By overexpressing a truncated ribosomal protein, L11C, I have demonstrated 5-fold increase of amber suppression level in E. coli, leading to higher expression levels for proteins incorporated with NAAs. I have also demonstrated this method can be applied successfully to incorporate at least 3 NAAs into one protein in E. coli. With the success of incorporating multiple NAAs into one protein, I have further introduced two distinct NAAs into one protein simultaneously. This is done by using a wild type or evolved PylRS-pylTUUA pair and an evolved M. jannaschii tyrosyl-tRNA synthetase (MjTyrRS)-tRNACUA pair. By suppressing both UAG and UAA stop codons in one mRNA, a protein incorporated with two NAAs is synthesized with a decent yield. There is of great interest to incorporate new NAAs into proteins, which is done by library selection. By introducing both positive and negative selective markers into one plasmid, I have developed a one-plasmid selection method. In this method, the positive and negative selections are accomplished by in a single type of cells hosting a single selection plasmid.

Huang, Ying

2012-05-01T23:59:59.000Z

363

Toward Direct Biosynthesis of Drop-in Ready Biofuels in Plants: Rapid Screening and Functional Genomic Characterization of Plant-derived Advanced Biofuels and Implications for Coproduction in Lignocellulosic Feedstocks.  

E-Print Network (OSTI)

??Advanced biofuels that are drop-in ready, completely fungible with petroleum fuels, and require minimal infrastructure to process a finished fuel could provide transportation fuels in (more)

Joyce, Blake Lee

2013-01-01T23:59:59.000Z

364

Use the drop-down search menus and operators (AND, OR, NOT) to customize your search. Search by topic, author, journal title, publication year, and other fields.  

E-Print Network (OSTI)

by topic, author, journal title, publication year, and other fields. Topic Enter your search words, joined, and subject terms; choose Title from the drop-down search menu to restrict your search to document titles only for the most comprehensive search. 1.To find all articles by Francis Harry Compton Crick, click , enter Crick F

California at Berkeley, University of

365

A Wind Tunnel and Theoretical Study of the Melting Behavior of Atmospheric Ice Particles. I: A Wind Tunnel Study of Frozen Drops of Radius < 500 ?m  

Science Conference Proceedings (OSTI)

A study has been made on the melting behavior of frozen drops suspended freely at terminal velocity in the UCLA Cloud Tunnel. The relative humidity of the air ranged between 25 and 95%. The warming rates of the tunnel air stream ranged from 2 to ...

R. Rasmussen; H. R. Pruppacher

1982-01-01T23:59:59.000Z

366

Condensation pressure drop of HFC-134a and R-404A in a smooth and micro-fin U-tube  

SciTech Connect

The frictional pressure drop during condensation of HFC-134a and R-404A in a smooth (8.56 mm ID) and micro-fin U-tubes (8.96 mm ID) are experimentally investigated. Different from previous studies, the present experiments are performed for various condensing temperatures. The test runs are done at average saturated condensing temperatures ranging from 35 C to 60 C. The mass fluxes are between 90 and 800 kg/m{sup 2}s. The experimental results indicate that the average frictional pressure drop increases with mass flux but decreases with increasing condensing temperature for both smooth and micro-fin-tubes. The average frictional pressure drops of HFC-134a and R-404A for the micro-fin-tubes were 1-1.7 and 1-2.1 times larger than that in smooth tube respectively. New correlations based on the data gathered during the experimentation for predicting frictional pressure drop are proposed for wide range of operating conditions. (author)

Patil, Pradeep A. [AISSMS College of Engineering, Pune University, Mechanical Engineering Department, Kennedy Road, near RTO, Pune 411 001, Maharashtra (India); Sapali, S.N. [Govt. College of Engineering, Department of Mechanical Engineering, Shivaji Nagar, Pune 411 005, Maharashtra (India)

2011-01-15T23:59:59.000Z

367

Al-Based Metallic Glass Incorporated Novel Ag Electrode for Si ...  

Science Conference Proceedings (OSTI)

... and good corrosion/oxidation resistances in the supercooled liquid state. ... Al- Based Metallic Glass Incorporated Novel Ag Electrode for Si Solar Cell ... Interfacial Free Energy and Local Order of Metallic Liquids from Elements to Alloys ... Predicting the Production of Glass Former Alloys by Mathematical Simulation of...

368

DOI: 10.1002/chem.201300762 Three-Dimensional Architectures Incorporating Stereoregular  

E-Print Network (OSTI)

molecules[2] (MIMs) have been incorporated into well-defined, extended architectures[3] of metal­organic p···p stacking of their hydroquinone (HQ) units, are sand- Abstract: We report the synthesis of two- sociated with both the DNP and hydro- quinone (HQ) units present in the crown ether, each catenane can

369

Amorphous silicon Schottky barrier solar cells incorporating a thin insulating layer and a thin doped layer  

SciTech Connect

Amorphous silicon Schottky barrier solar cells which incorporate a thin insulating layer and a thin doped layer adjacent to the junction forming metal layer exhibit increased open circuit voltages compared to standard rectifying junction metal devices, i.e., Schottky barrier devices, and rectifying junction metal insulating silicon devices, i.e., MIS devices.

Carlson, David E. (Yardley, PA)

1980-01-01T23:59:59.000Z

370

A General Method of Incorporating Forecast Cost and Loss in Value Scores  

Science Conference Proceedings (OSTI)

In this note, the author shows how to incorporate cost for correct forecasts in the skill score statistical test developed by Briggs and Ruppert and how to extend this result to another value score developed by Wilks. It is then shown that both ...

William Briggs

2005-11-01T23:59:59.000Z

371

Quantifying the system balancing cost when wind energy is incorporated into  

E-Print Network (OSTI)

Quantifying the system balancing cost when wind energy is incorporated into electricity generation system Natalia Issaeva #12;Contents Notation 1 1 Introduction 4 1.1 Benefits of wind energy . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 Challenges of wind energy . . . . . . . . . . . . . . . . . . . . . . 5 1.3 Balancing

Tanner, Jared

372

Galactic hydraulic drop?  

E-Print Network (OSTI)

Galaxies and galaxy clusters are observed to have a rather non-trivial radial behaviour. The observations show that the radial profiles change from one power-law profile near the centre to another power-law profile in the outer region. We present a simple explanation for this complex behaviour by finding the analytical solutions to the governing hydrodynamic equations. We see that the origin of this complexity is the collisional nature of the baryonic plasma, possibly related to a turbulence-enhanced viscosity.

Steen H. Hansen

2003-10-10T23:59:59.000Z

373

Characteristics of the Raindrop Size Distribution and Drop Shape Relation in Typhoon Systems in the Western Pacific from the 2D Video Disdrometer and NCU C-Band Polarimetric Radar  

Science Conference Proceedings (OSTI)

The drop size distribution (DSD) and drop shape relation (DSR) characteristics that were observed by a ground-based 2D video disdrometer and retrieved from a C-band polarimetric radar in the typhoon systems during landfall in the western Pacific, ...

Wei-Yu Chang; Tai-Chi Chen Wang; Pay-Liam Lin

2009-10-01T23:59:59.000Z

374

Evaluating the combustion reactivity of drop tube furnace and thermogravimetric analysis coal chars with a selection of metal additives  

SciTech Connect

Opportunities exist for effective coal combustion additives that can reduce the carbon content of pulverized fuel ash (PFA) to below 6%, thereby making it saleable for filler/building material applications without the need for postcombustion treatment. However, with only limited combustion data currently available for the multitude of potential additives, catalytic performance under pulverized fuel (PF) boiler conditions has received relatively little attention. This paper therefore compares the reactivity of catalyzed bituminous coal chars from thermogravimetric analysis (TGA) with those generated by devolatilization in a drop tube furnace (DTF). The principal aim was to explore the fundamental chemistry behind the chosen additives' relative reactivities. Accordingly, all eight of the investigated additives increased the TGA burnout rate of the TGA and DTF chars, with most of the catalysts demonstrating consistent reactivity levels across chars from both devolatilization methods. Copper(I) chloride, silver chloride, and copper nitrate were thus identified as the most successful additives tested, but it proved difficult to establish a definitive reactivity ranking. This was largely due to the use of physical mixtures for catalyst dispersion, the relatively narrow selection of additives examined, and the inherent variability of the DTF chars. Nevertheless, one crucial exception to normal additive behavior was discovered, with copper(I) chloride perceptibly deactivating during devolatilization in the DTF, even though it remained the most effective catalyst tested. As a prolonged burnout at over 1000{sup o}C was required to replicate this deactivation effect on the TGA, the phenomenon could not be detected by typical testing procedures. Subsequently, a comprehensive TGA study showed no obvious relationship between the catalyst-induced reductions in the reaction's apparent activation energy and the samples recorded burnout rates.

Katherine Le Manquais; Colin E. Snape; Ian McRobbie; Jim Barker [University of Nottingham (United Kingdom). Department of Chemical and Environmental Engineering

2011-03-17T23:59:59.000Z

375

Superdeformed nuclei: Shells-vs-liquid drop, pairing-vs-thermal excitations, triaxial-vs-octupole shapes, super-superdeformation  

SciTech Connect

Mechanisms influencing the behavior of superdeformed nuclei are studied using several well established nuclear structure techniques. In particular: pairing, thermal excitation, shell and liquid-drop mechanisms are considered. The effects of quadrupole and hexadecapole (both axial and non-axial), and octupole deformation degrees of freedom are studied. Most of the results are illustrated using the case of /sup 152/Dy nucleus in which a superdeformed band extending up to I approx. 60 h-bar has been found in experiment. Some comparisons between /sup 152/Dy and the nuclei in the neighborhood are given. Calculations show that pairing ''de-aligns'' typically 6 to 8 units of angular momentum, as compared to the corresponding rigid rotation. This takes place for spins extending up to the highest limit, and thus diminishes the effective moments of inertia. Predicted octupole shape susceptibility is extremely large, significantly stronger than the susceptibilities known in the ground-states of many Actinide nuclei. Consequences of this result for the near-constancy of the dynamical moments of inertia are pointed out. Nuclear level densities calculated in function of spin, excitation energy and deformation explain the ''unusual'' side feeding pattern of the /sup 152/Dy superdeformed states. Predictions of super-superdeformed nuclear states (axis ratio varying between 2:1 and 3:1 or more) are given and exemplified for Erbium nuclei. Finally, the problem of superdeformation stability and the influence of increased collective inertia on a barrier penetration are examined. An analytical expression for the effective inertia parameter is obtained and its derivation outlined. 35 refs., 9 figs.

Dudek, J.

1987-01-01T23:59:59.000Z

376

Incorporation of Multi-Member Substructure Capabilities in FAST for Analysis of Offshore Wind Turbines: Preprint  

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

Incorporation of Multi-Member Incorporation of Multi-Member Substructure Capabilities in FAST for Analysis of Offshore Wind Turbines Preprint H. Song, A. Robertson, and J. Jonkman National Renewable Energy Laboratory D. Sewell University of Delaware Presented at the Offshore Technology Conference Houston, Texas April 30-May 3, 2012 Conference Paper NREL/CP-5000-53676 May 2012 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (Alliance), a contractor of the US Government under Contract No. DE-AC36-08GO28308. Accordingly, the US Government and Alliance retain a nonexclusive royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for US Government purposes. This report was prepared as an account of work sponsored by an agency of the United States government.

377

STATEMENT OF CONSIDERATIONS REQUEST BY SOLAR TURBINES INCORPORATED FOR AN ADVANCE WAIVER  

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

FC02-00CH11049; W(A)-01-003; CH-1056 FC02-00CH11049; W(A)-01-003; CH-1056 As set out in attached waiver petition and in subsequent discussions with Solar Turbines Incorporated (Solar), Solar has requested an advance waiver of domestic and foreign patent rights for all subject inventions made under the above identified cooperative agreement by its employees and its subcontractors' employees regardless of tier, except inventions made by subcontractors eligible to retain title to inventions pursuant to P.L. 96-517, as amended, or National Laboratories. Under this agreement, Solar expects to develop and demonstrate a significantly improved combustion system for its Mercury 50 advanced industrial gas turbine by selectively incorporating advanced alloys, coatings, and composite and monolithic ceramics into

378

One-Piece Battery Incorporating A Circulating Fluid Type Heat Exchanger  

SciTech Connect

A one-piece battery comprises a tank divided into cells each receiving an electrode assembly, closure means for the tank and a circulating fluid type heat exchanger facing the relatively larger faces of the electrode assembly. The fluid flows in a compartment defined by two flanges which incorporate a fluid inlet orifice communicating with a common inlet manifold and a fluid outlet orifice communicating with a common outlet manifold. The tank comprises at least two units and each unit comprises at least one cell delimited by walls. The wall facing a relatively larger face of the electrode assembly constitutes one of the flanges. Each unit further incorporates a portion of an inlet and outlet manifold. The units are fastened together so that the flanges when placed face-to-face form a sealed circulation compartment and the portions of the same manifold are aligned with each other.

Verhoog, Roelof (Bordeaux, FR)

2001-10-02T23:59:59.000Z

379

Soil carbon sequestration and changes in fungal and bacterial biomass following incorporation of forest residues.  

SciTech Connect

Sequestering carbon (C) in forest soils can benefit site fertility and help offset greenhouse gas emissions. However, identifying soil conditions and forest management practices which best promote C accumulation remains a challenging task. We tested whether soil incorporation of masticated woody residues alters short-term C storage at forested sites in western and southeastern USA. Our hypothesis was that woody residues would preferentially stimulate soil fungal biomass, resulting in improved C use efficiency and greater soil C storage. Harvest slash at loblolly pine sites in South Carolina was masticated (chipped) and either (1) retained on the soil surface, (2) tilled to a soil depth of 40 cm, or (3) tilled using at least twice the mass of organics. At comparative sites in California, live woody fuels in ponderosa pine stands were (1) masticated and surface applied, (2) masticated and tilled, or (3) left untreated. Sites with clayey and sandy soils were compared in each region, with residue additions ranging from 20 to 207 Mg ha_1. Total and active fungal biomass were not strongly affected by residue incorporation despite the high input of organics. Limited response was also found for total and active bacterial biomass. As a consequence, fungal:bacterial (F:B) biomass ratios were similar among treatments at each site. Total soil C was elevated at one California site following residue incorporation, yet was significantly lower compared to surface-applied residues at both loblolly pine sites, presumably due to the oxidative effects of tilling on soil organic matter. The findings demonstrated an inconsequential effect of residue incorporation on fungal and bacterial biomass and suggest a limited potential of such practices to enhance long-term soil C storage in these forests.

Busse, Matt, D.; Sanchez, Felipe G.; Ratcliff, Alice W.; Butnor, John R.; Carter, Emily A.; Powers, Robert F.

2009-01-01T23:59:59.000Z

380

An extension of the relational data model to incorporate ordered domains  

Science Conference Proceedings (OSTI)

We extend the relational data model to incorporate partial orderings into data domains, which we call the ordered relational model. Within the extended model, we define the partially ordered relational algebra (the PORA) by allowing the ordering predicate ... Keywords: Axiom system, chase rules, implication problem, language expressiveness, lexicographical ordering, mixed ordering, nonuniform completeness, order-preserving database automorphism, ordered SQL, ordered functional dependencies, ordered relational model, ordered relations, partially ordered domains, partially ordered relational algebra, pointwise ordering, tableaux, valuation mapping

Wilfred Ng

2001-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "hughes incorporated dropped" 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

First-principles calculations of the stability and incorporation of helium, xenon and krypton in uranium  

SciTech Connect

While metallic fuels have a long history of reactor use, their fundamental physical and thermodynamic properties are not well understood. Many metallic nuclear fuels are body-centered cubic alloys of uranium that swell under fission conditions, creating fission product gases such as helium, xenon and krypton. In this paper, helium, xenon, and krypton point defects are investigated in the a and ? phases of metallic uranium using first principles calculations. A density functional theory (DFT) framework is utilized with projector augmented-wave (PAW) pseudopotentials. Formation and incorporation energies of He, Xe, and Kr are calculated at various defect positions for the prediction of fission gas behavior in uranium. In most cases, defect energies follow a size effect, with helium incorporation and formation energies being the smallest. The most likely position for the larger Xe and Kr atoms in uranium is the substitutional site. Helium atoms are likely to be found in a wide variety of defect positions due to the comparable formation energies of all defect configurations analyzed. This is the first detailed study of the stability and incorporation of fission gases in uranium.

B. Beeler; B. Good; S. Rashkeev; M. Baskes; M. Okuniewski

2012-06-01T23:59:59.000Z

382

An Experimental Study on the Mass Transfer Process of CO2 from Liquid CO2 Drops under Simulated Deep-Sea Conditons  

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

An Experimental Study on the Mass Transfer Process of An Experimental Study on the Mass Transfer Process of CO 2 from Liquid CO 2 Drops under Simulated Deep-Sea Conditions Akihiro Yamasaki (akihiroy@nimc.go.jp) Keiichi Ogasawara Ho Teng National Institute of Materials and Chemical Research 1-1 Higashi, Tsukuba 3058565, JAPAN Satoko Takano Minoru Fujii Yukio Yanagisawa School of Frontier Science, Institute of Environmental Studies, The University of Tokyo,7-3-1 Hongo, Bunkyo-ku, Tokyo 1138656, JAPAN Abstract Mass transfer behavior of CO 2 from liquid CO 2 drops under simulated deep-sea conditions has been studied in a laboratory scale experimental apparatus. Liquid CO 2 was injected into the water of high pressure ( p > 50 bar) and low temperature ( T < 288 K) conditions through a nozzle. After injection, liquid CO

383

Experimental Performance of R-1234yf and R-1234ze as Drop-in Replacements for R-134a in Domestic Refrigerators  

Science Conference Proceedings (OSTI)

Concerns about anthropogenic climate change have generated an interest in low global warming potential (GWP) refrigerants and have spawned policies and regulations that encourage the transition to low GWP refrigerants. Recent research has largely focused on hydrofluoroolefins (HFOs), including R-1234yf (GWP = 4) as a replacement for R-134a (GWP = 1430) in automotive air-conditioning applications. While R-1234yf and R-1234ze (GWP = 6) have been investigated theoretically as a replacements for R-134a in domestic refrigeration, there is a lack of experimental evidence. This paper gives experimental performance data for R-1234yf and R-1234ze as drop-in replacements for R134a in two household refrigerators one baseline and one advanced technology. An experiment was conducted to evaluate and compare the performance of R-134a to R-1234yf and R-1234ze, using AHAM standard HRF-1 to evaluate energy consumption. These refrigerants were tested as drop-in replacements, with no performance enhancing modifications to the refrigerators. In Refrigerator 1 and 2, R-1234yf had 2.7% and 1.3% higher energy consumption than R-134a, respectively. This indicates that R-1234yf is a suitable drop-in replacement for R-134a in domestic refrigeration applications. In Refrigerator 1 and 2, R-1234ze had 16% and 5.4% lower energy consumption than R-134a, respectively. In order to replace R-134a with R-1234ze in domestic refrigerators the lower capacity would need to be addressed, thus R-1234ze might not be suitable for drop-in replacement.

Karber, Kyle M [ORNL; Abdelaziz, Omar [ORNL; Vineyard, Edward Allan [ORNL

2012-01-01T23:59:59.000Z

384

Conceptual Design Report Cask Loadout Sys and Cask Drop Redesign for the Immersion Pail Support Structure and Operator Interface Platform at 105 K West  

SciTech Connect

This conceptual design report documents the redesign of the IPSS and the OIP in the 105 KW Basin south loadout pit due to a postulated cask drop accident, as part of Project A.5/A.6, Canister Transfer Facility Modifications. Project A.5/A.6 involves facility modifications needed to transfer fuel from the basin into the cask-MCO. The function of the IPSS is to suspend, guide, and position the immersion pail. The immersion pail protects the cask-MCO from contamination by basin water and acts as a lifting device for the cask-MCO. The OIP provides operator access to the south loadout pit. Previous analyses studied the effects of a cask-MCO drop on the south loadout pit concrete structure and on the IPSS. The most recent analysis considered the resulting loads at the pit slab/wall joint (Kanjilal, 1999). This area had not been modeled previously, and the analysis results indicate that the demand capacity exceeds the allowable at the slab/wall joint. The energy induced on the south loadout pit must be limited such that the safety class function of the basin is maintained. The solution presented in this CDR redesigns the IPSS and the OIP to include impact-absorbing features that will reduce the induced energy. The impact absorbing features of the new design include: Impact-absorbing material at the IPSS base and at the upper portion of the IPSS legs. A sleeve which provides a hydraulic means of absorbing energy. Designing the OIP to act as an impact absorber. The existing IPSS structure in 105 KW will be removed. This conceptual design considers only loads resulting from drops directly over the IPSS and south loadout pit area. Drops in other areas of the basin are not considered, and will be covered as part of a future revision to this CDR.

LANGEVIN, A.S.

1999-07-12T23:59:59.000Z

385

Test Procedure for 170.302.h Incorporate Laboratory Test Results APPROVED Version 1.1 September 24, 2010  

E-Print Network (OSTI)

Test Procedure for §170.302.h Incorporate Laboratory Test Results APPROVED Version 1.1 September 24, 2010 1 Test Procedure for §170.302 (h) Incorporate Laboratory Test Results This document describes the test procedure for evaluating conformance of complete EHRs or EHR modules1

386

Determining the Effectiveness of Incorporating Geographic Information Into Vehicle Performance Algorithms  

SciTech Connect

This thesis presents a research study using one year of driving data obtained from plug-in hybrid electric vehicles (PHEV) located in Sacramento and San Francisco, California to determine the effectiveness of incorporating geographic information into vehicle performance algorithms. Sacramento and San Francisco were chosen because of the availability of high resolution (1/9 arc second) digital elevation data. First, I present a method for obtaining instantaneous road slope, given a latitude and longitude, and introduce its use into common driving intensity algorithms. I show that for trips characterized by >40m of net elevation change (from key on to key off), the use of instantaneous road slope significantly changes the results of driving intensity calculations. For trips exhibiting elevation loss, algorithms ignoring road slope overestimated driving intensity by as much as 211 Wh/mile, while for trips exhibiting elevation gain these algorithms underestimated driving intensity by as much as 333 Wh/mile. Second, I describe and test an algorithm that incorporates vehicle route type into computations of city and highway fuel economy. Route type was determined by intersecting trip GPS points with ESRI StreetMap road types and assigning each trip as either city or highway route type according to whichever road type comprised the largest distance traveled. The fuel economy results produced by the geographic classification were compared to the fuel economy results produced by algorithms that assign route type based on average speed or driving style. Most results were within 1 mile per gallon ({approx}3%) of one another; the largest difference was 1.4 miles per gallon for charge depleting highway trips. The methods for acquiring and using geographic data introduced in this thesis will enable other vehicle technology researchers to incorporate geographic data into their research problems.

Sera White

2012-04-01T23:59:59.000Z

387

Dynamic modelling of a double-pendulum gantry crane system incorporating payload  

Science Conference Proceedings (OSTI)

The natural sway of crane payloads is detrimental to safe and efficient operation. Under certain conditions, the problem is complicated when the payloads create a double pendulum effect. This paper presents dynamic modelling of a double-pendulum gantry crane system based on closed-form equations of motion. The Lagrangian method is used to derive the dynamic model of the system. A dynamic model of the system incorporating payload is developed and the effects of payload on the response of the system are discussed. Extensive results that validate the theoretical derivation are presented in the time and frequency domains.

Ismail, R. M. T. Raja; Ahmad, M. A.; Ramli, M. S.; Ishak, R.; Zawawi, M. A. [Faculty of Electrical and Electronics Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300, Kuantan, Pahang (Malaysia)

2011-06-20T23:59:59.000Z

388

Site specific incorporation of heavy atom-containing unnatural amino acids into proteins for structure determination  

DOE Patents (OSTI)

Translation systems and other compositions including orthogonal aminoacyl tRNA-synthetases that preferentially charge an orthogonal tRNA with an iodinated or brominated amino acid are provided. Nucleic acids encoding such synthetases are also described, as are methods and kits for producing proteins including heavy atom-containing amino acids, e.g., brominated or iodinated amino acids. Methods of determining the structure of a protein, e.g., a protein into which a heavy atom has been site-specifically incorporated through use of an orthogonal tRNA/aminoacyl tRNA-synthetase pair, are also described.

Xie, Jianming (San Diego, CA); Wang, Lei (San Diego, CA); Wu, Ning (Boston, MA); Schultz, Peter G. (La Jolla, CA)

2008-07-15T23:59:59.000Z

389

Incorporation of Multi-Member Substructure Capabilities in FAST for Analysis of Offshore Wind Turbines: Preprint  

DOE Green Energy (OSTI)

FAST, developed by the National Renewable Energy Laboratory (NREL), is an aero-hydro-servo-elastic tool widely used for analyzing onshore and offshore wind turbines. This paper discusses recent modifications made to FAST to enable the examination of offshore wind turbines with fixed-bottom, multi-member support structures (which are commonly used in transitional-depth waters).; This paper addresses the methods used for incorporating the hydrostatic and hydrodynamic loading on multi-member structures in FAST through its hydronamic loading module, HydroDyn. Modeling of the hydrodynamic loads was accomplished through the incorporation of Morison and buoyancy loads on the support structures. Issues addressed include how to model loads at the joints of intersecting members and on tapered and tilted members of the support structure. Three example structures are modeled to test and verify the solutions generated by the modifications to HydroDyn, including a monopile, tripod, and jacket structure. Verification is achieved through comparison of the results to a computational fluid dynamics (CFD)-derived solution using the commercial software tool STAR-CCM+.

Song, H.; Robertson, A.; Jonkman, J.; Sewell, D.

2012-05-01T23:59:59.000Z

390

Sodium-Doped Molybdenum Targets for Controllable Sodium Incorporation in CIGS Solar Cells: Preprint  

DOE Green Energy (OSTI)

The efficiency of Cu(In,Ga)Se2 (CIGS) solar cells is enhanced when Na is incorporated in the CIGS absorber layer. This work examines Na incorporation in CIGS utilizing Na-doped Mo sputtered from targets made with sodium molybdate-doped (MONA) powder. Mo:Na films with varying thicknesses were sputtered onto Mo-coated borosilicate glass (BSG) or stainless steel substrates for CIGS solar cells. By use of this technique, the Na content of CIGS can be varied from near-zero to higher than that obtained from a soda-lime glass (SLG) substrate. Targets and deposition conditions are described. The doped Mo films are analyzed, and the resulting devices are compared to devices fabricated on Mo-coated SLG as well as Mo-coated BSG with NaF. Completed devices utilizing MONA exceeded 15.7% efficiency without anti-reflective coating, which was consistently higher than devices prepared with the NaF precursor. Strategies for minimizing adhesion difficulties are presented.

Mansfield, L. M.; Repins, I. L.; Glynn, S.; Carducci, M. D.; Honecker, D. M.; Pankow, J.; Young, M.; DeHart, C.; Sundaramoorthy, R.; Beall, C. L.; To, B.

2011-07-01T23:59:59.000Z

391

Oxygen Incorporation During Fabrication of Substrate CdTe Photovoltaic Devices: Preprint  

DOE Green Energy (OSTI)

Recently, CdTe photovoltaic (PV) devices fabricated in the nonstandard substrate configuration have attracted increasing interest because of their potential compatibility with flexible substrates such as metal foils and polymer films. This compatibility could lead to the suitability of CdTe for roll-to-roll processing and building-integrated PV. Currently, however, the efficiencies of substrate CdTe devices reported in the literature are significantly lower ({approx}6%-8%) than those of high-performance superstrate devices ({approx}17%) because of significantly lower open-circuit voltage (Voc) and fill factor (FF). In our recent device development efforts, we have found that processing parameters required to fabricate high-efficiency substrate CdTe PV devices differ from those necessary for traditional superstrate CdTe devices. Here, we investigate how oxygen incorporation in the CdTe deposition, CdCl2 heat treatment, CdS deposition, and post-deposition heat treatment affect device characteristics through their effects on the junction. By adjusting whether oxygen is incorporated during these processing steps, we have achieved Voc values greater than 860 mV and efficiencies greater than 10%.

Duenow, J. N.; Dhere, R. G.; Kuciauskas, D.; Li, J. V.; Pankow, J. W.; DeHart, C. M.; Gessert, T. A.

2012-06-01T23:59:59.000Z

392

Peace and Conflict Studies (PACS) Essay Contest --$500 Scholarship to the Winner! Inspired by her own survival of the dropping of an atomic bomb on Hiroshima, BGSU alumnus Ms.  

E-Print Network (OSTI)

own survival of the dropping of an atomic bomb on Hiroshima, BGSU alumnus Ms. Hiroko Nakamoto has threat of nuclear weapons in our world in a lecture entitled: "Nuclear Alarmism from Hiroshima to Al

Moore, Paul A.

393

Comparison of Drop Size Distribution Parameter (D0) and Rain Rate from S-Band Dual-Polarized Ground Radar, TRMM Precipitation Radar (PR), and Combined PRTMI: Two Events from Kwajalein Atoll  

Science Conference Proceedings (OSTI)

The estimation of the drop size distribution parameter [median volume diameter (D0)] and rain rate (R) from the Tropical Rainfall Measuring Mission (TRMM) precipitation radar (PR) as well as from combined PRTRMM Microwave Imager (TMI) algorithms ...

V. N. Bringi; Gwo-Jong Huang; S. Joseph Munchak; Christian D. Kummerow; David A. Marks; David B. Wolff

2012-11-01T23:59:59.000Z

394

Effect of incorporating cellulose nanocrystals from corncob on the tensile, thermal and barrier properties of poly(vinyl alcohol) nanocomposites  

Science Conference Proceedings (OSTI)

The effect of incorporating cellulose nanocrystals fromcorncob (CNC) on the tensile, thermal, and barrier properties of poly(vinyl alcohol) (PVA) nanocomposites was evaluated. The CNC were prepared by sulfuric acid hydrolysis at 45C for 60 minutes, ...

Hudson Alves Silvrio, Wilson Pires Flauzino Neto, Daniel Pasquini

2013-01-01T23:59:59.000Z

395

Hr. Michael Esposito Audio-Tex Industries, Incorporated 4555 West Addison Street  

Office of Legacy Management (LM)

-- -- Hr. Michael Esposito Audio-Tex Industries, Incorporated 4555 West Addison Street Chicago, Illinois 60641 Dear Mr. Esposito: Enclosed is a copy of the final survey report for your facility in Chicago,. Illinois , which is the site of the former ERA Tool & Engineering Company. The survey report documents the fact that the radiological condition of your facility is in compliance with applicable Department of Energy Guidelines and that no remedial action or further investigaticns are necessary. If you have any questions regarding the survey results or our dssociated actions, contact Mr. James Wagoner of my staff at 301-353-2802. Sincerely, James 3. Fiore, Director Division of Facility and Site Decommissioning Projects Office of Kuclear Energy

396

STATEMENT OF CONSIDERATIONS REQUEST BY CORNING INCORPORATED FOR AN ADVANCE WAIVER OF DOMESTIC  

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

WAIVER OF DOMESTIC WAIVER OF DOMESTIC AND FOREIGN INVENTION RIGHTS UNDER DOE CONTRACT NO. DE-FC26- 05NT42461, SUBCONTRACT QZ001; W(A)-05-040, CH-1322 The Petitioner, Corning Incorporated (Corning) was awarded a subcontract under a cooperative agreement for the performance of work entitled, "Advanced Gasification Mercury/Trace Metal Control with Monolith Traps". The prime contract is with the University of North Dakota Energy and Environmental Research Center (EERC). The purpose of the project is to develop effective, economical technology to enable the removal of mercury from syngas created when coal is gasified. Under the subcontract, Corning will conduct research into whether Corning's impregnated monolith technology, in conjunction with the University of North Dakota's

397

Microsoft Word - Satchwell Analytical Frameworks to Incorporate DR FINAL for RCO.docx  

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

Analytical Frameworks to Analytical Frameworks to Incorporate Demand Response in Long-term Resource Planning Andrew Satchwell 1 and Ryan Hledik 2 1 Lawrence Berkeley National Laboratory, 2 The Brattle Group Environmental Energy Technologies Division September 2013 Preprint of article submitted to Utilities Policy Journal. The work described in this report was funded by the National Electricity Delivery Division of the U.S. Department of Energy's Office of Electricity Delivery and Energy Reliability under Lawrence Berkeley National Laboratory Contract No. DE-AC02- 05CH11231. ERNEST ORLANDO LAWRENCE BERKELEY NATIONAL LABORATORY Disclaimer This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither

398

STATEMENT OF CONSIDERATIONS REQUEST BY CORNING INCORPORATED FOR AN ADVANCE WAIVER  

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

WAIVER WAIVER OF DOMESTIC AND FOREIGN PATENT RIGHTS UNDER DOE CONTRACT NO. B29143; DOE WAIVER NO. W(A)-95-029 The Petitioner, Corning Incorporated, has requested an Advance Waiver of the Government's domestic and foreign rights to inventions made under the above cited research and development contract (R&D Contract). The objective of the R&D Contract issued by the Lawrence Livermore National Laboratory (LLNL) on behalf of DP-11 is to reduce the costs associated with the manufacturing of large size high quality fused silica transmissive optics utilized in advanced Inertial Confinement Fusion (ICF) laser systems. The present cost of laser optics used in the ICF laser system is between $1.7/cm 3 to $2.0/cm 3 . After completion of the R&D Contract, it is believed that a 50% reduction in cost for the

399

Wind Developer's Perspective on Incorporating Wind in Cap and Trade Program  

Wind Powering America (EERE)

Developer's Perspective Developer's Perspective on Incorporating Wind in Cap & Trade Programs January 12, 2006 Kevin Rackstraw Clipper Windpower, Inc. Clipper Windpower, Inc. 301/263 301/263- -0028 0028 krackstraw@clipperwind.com krackstraw@clipperwind.com About Clipper Windpower * Founded by James Dehlsen, a wind energy pioneer and recognized world leader in the wind industry, and founder of the company that is now GE Wind * Team is one of the most experienced in the business * Both a developer of wind projects and manufacturer of large wind turbines * Over $1.5 billion of wind projects developed * Another $4 billion of wind projects in the development pipeline Motivations * Emissions reduction claims: * In cap and trade states, neither we nor our marketers can state that we reduce capped emissions w/out allowances

400

ORNL/TM-11118 RESULTS OF THE RADIOLOGICAL SURVEY AT METPATH INCORPORATED,  

Office of Legacy Management (LM)

TM-11118 TM-11118 RESULTS OF THE RADIOLOGICAL SURVEY AT METPATH INCORPORATED, 1 MALCOLM AVENUE, TETERBORO, NEW JERSEY (TJOO3) FL D. Foley L. M. Floyd, Printed in the United States of America. Available from National Technical Information Serwce U.S. Department of Commerce I 5265 Port Royal Road. Springfield, Virginia 22161 NTIS price codes-Printed Copy:A03 Microfiche A01 This report was prepared as an account of work sponsored by an 8ge"cy of the UnitedSlaterGovernmenl.NeithertheUnitedStatesGovernmen~no,anyagency thereof. nor any 01 their employees. makes any warranty. express 0, implied. 0, assumes any legal liabhty or responsibility lo, the accuracy. completeness. 0, UJB~U~WSJ of any information. apparatus. product. or process disClosed. or represents that its use would not infringe privately owned rights. Reference herein

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401

Investigation of Molecular Magnetic Compounds Incorporating 4d and 5d Transition Metal Cyanometallates  

E-Print Network (OSTI)

The field of molecular magnetism has expanded rapidly since the discovery of single molecule magnets (SMMs) in the 1990s and has witnessed extraordinary advances in the last several decades. One of the current trends in molecular magnetic research is to incorporate metal ions that have pronounced single-ion anisotropy in an effort to improve magnetic exchange interactions. The 4d and 5d transition metal ions have large spin-orbit coupling parameters which contribute to the orbital angular momentum effects that lead to anisotropic behavior. The work herein describes efforts to synthesize and characterize new cyanide-bridged molecular materials incorporating 4d and 5d transition metal ions, specifically the [Os(CN)_(6)]^(3-), [Mo(CN)_(6)]^(3-) and [W(CN)_(8)]^(3-) ions. The 5d hexacyanometallate [Os(CN)_(6)]^(3-) was incorporated into a trinuclear cyanide bridged molecule and the [Fe(CN)_(6)]^(3-) analog was prepared as a reference compound for assessing the effect of the 5d versus 3d metal ion on the magnetic properties. Both molecules exhibit SMM bistability with a pronounced increase (~90 %) in the blocking temperature (TB) of the OsIII analogue. In addition to typical SMM behavior, both compounds exhibit exchange-biased SMM behavior, a shift in the quantum tunneling of the magnetization (QTM) from zero field. This exchange-bias can be turned on or off depending on the presence of interstitial methanol molecules. New trigonal bipyramidal (TBP) molecules incorporating the rarely studies hexacyanomolybdate(III) ion are presented in chapter III of this dissertation. The molecules of general formula [M(tmphen)_(2)]_(3)[Mo(CN)_(6)]_(2) (M = V^(II), Mn^(II) and Fe^(II); tmphen = 3,4,7,8-tetramethyl-1,10-phenanthroline), represent additions to a large homologous family of TBP molecules reported by the Dunbar group over the years. The [Mo(CN)_(6)]^(3-) ion was prepared in situ by loss of one cyanide ligand from [Mo(CN)_(7)]^(4-). Of particular interest among the compounds reported is the V_(3)Mo_(2) analog which exhibits extraordinarily strong antiferromagnetic coupling (estimated J = -134 cm^(-1). The observed exchange coupling parameter is more than twice the current record for the antiferromagnetic coupling parameter for a cyanide-bridged magnetic molecule. Another set of results were obtained using the octacyanometallate anion [WV(CN)_(8)]^(3-) as a building block for the synthesis and magnetic studies of a family of new cyanide-bridged magnetic materials. The compounds exhibit several different structural motifs including three 0-D molecular compounds (two pentanuclear molecules and a linear trinuclear molecule) and a 1-D chain, findings that illustrate the structural versatility of the octacyanotungstate(V) ions. The TBP molecule, [Mn(tmphen)_(2)]_(3)[W(CN)_(8)]_(2), exhibits evidence for an out-of-phase signal when subjected to ac measurements in zero applied field. The 1-D chain also reveals evidence for the beginning of an out-of-phase signal under zero applied field which hints at single chain magnet behavior.

Southerland, Heather Irene

2013-08-01T23:59:59.000Z

402

Incorporating ecological risk assessment into remedial investigation/feasibility study work plans  

SciTech Connect

This guidance document (1) provides instructions on preparing the components of an ecological work plan to complement the overall site remedial investigation/feasibility study (RI/FS) work plan and (2) directs the user on how to implement ecological tasks identified in the plan. Under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA), as amended by the Superfund Amendments and Reauthorization Act of 1986 (SARA), and RI/FS work plan will have to be developed as part of the site-remediation scoping process. Specific guidance on the RI/FS process and the preparation of work plans has been developed by the US Environmental Protection Agency (EPA 1988a). This document provides guidance to US Department of Energy (DOE) staff and contractor personnel for incorporation of ecological information into environmental remediation planning and decision making at CERCLA sites.

Not Available

1994-06-01T23:59:59.000Z

403

Ionic liquid pretreatment of poplar wood at room temperature: swelling and incorporation of nanoparticles  

DOE Green Energy (OSTI)

Lignocellulosic biomass represents a potentially sustainable source of liquid fuels and commodity chemicals. It could satisfy the energy needs for transportation and electricity generation, while contributing substantially to carbon sequestration and limiting the accumulation of greenhouse gases in the atmosphere. Potential feedstocks are abundant and include crops, agricultural wastes, forest products, grasses, and algae. Among those feedstocks, wood is mainly constituted of three components: cellulose, hemicellulose, and lignin. The conversion process of lignocellulosic biomass typically consists of three steps: (1) pretreatment; (2) hydrolysis of cellulose and hemicellulose into fermentable sugars; and (3) fermentation of the sugars into liquid fuels (ethanol) and other commodity chemicals. The pretreatment step is necessary due to the complex structure of the plant cell wall and the chemical resistance of lignin. Most current pretreatments are energy-intensive and/or polluting. So it is imperative to develop new pretreatments that are economically viable and environmentally friendly. Recently, ionic liquids have attracted considerable interest, due to their ability to dissolve biopolymers, such as cellulose, lignin, native switchgrass, and others. Ionic liquids are also considered green solvents, since they have been successfully recycled at high yields for further use with limited efficiency loss. Also, a few microbial cellulases remain active at high ionic liquid concentration. However, all studies on the dissolution of wood in ionic liquids have been conducted so far at high temperatures, typically above 90 C. Development of alternative pretreatments at room temperature is desirable to eliminate the additional energy cost. In this study, thin sections of poplar wood were swollen at room temperature by a 3 h ionic liquid (1-ethyl-3-methylimidazolium acetate or EMIMAc) pretreatment. The pretreated sample was then exposed to an aqueous suspension of nanoparticles that resulted in the sample contraction and the deposition of nanoparticles onto the surface and embedded into the cell wall. To date, both silver and gold particles ranging in size from 40-100 nm have been incorporated into wood. Penetration of gold nanoparticles of 100 nm diameter in the cell walls was best confirmed by near-infrared confocal Raman microscopy, since the deposition of gold nanoparticles induces a significant enhancement of the Raman signal from the wood in their close proximity, an enhancement attributed to the surface-enhanced Raman effect (SERS). After rinsing with water, scanning electron microscopy (SEM) and Raman images of the same areas show that most nanoparticles remained on the pretreated sample. Raman images at different depths reveal that a significant number of nanoparticles were incorporated into the wood sample, at depths up to 4 {micro}m, or 40 times the diameter of the nanoparticles. Control experiments on an untreated wood sample resulted in the deposition of nanoparticles only at the surface and most nanoparticles were removed upon rinsing. This particle incorporation process enables the development of new pretreatments, since the nanoparticles have a high surface-to-volume ratio and could be chemically functionalized. Other potential applications for the incorporated nanoparticles include isotope tracing, catalysis, imaging agents, drug-delivery systems, energy-storage devices, and chemical sensors.

Lucas, Marcel [Los Alamos National Laboratory; Macdonald, Brian A [Los Alamos National Laboratory; Wagner, Gregory L [Los Alamos National Laboratory; Joyce, Steven A [Los Alamos National Laboratory; Rector, Kirk D [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

404

Incorporating Radiation Effects into Edge Plasma Transport Models with Extended Atomic Data Tables  

DOE Green Energy (OSTI)

Plasmas at the tokamak edge can be very optically thick to hydrogen resonance lines. The resulting strong line radiation can significantly affect the ionization and energy balance in these plasmas. One method of account for effects is to self-consistently couple a partially ionized plasma transport model with a nonlocal thermodynamic equilibrium (NLTE) model incorporating line radiation transfer. This approach has been implemented in one dimension, but would be computationally challenging and expensive to implement in multiple dimensions. Approximate treatments of radiation transfer can decrease the computational time, but would still require coupling to a multidimensional plasma transport model to address realistic geometries, e.g. the tokamak divertor. Here, we consider the development of atomic hydrogen data tables that include radiation interactions and can be easily applied to multidimensional geometries.

Scott, H A; Adams, M L

2004-06-14T23:59:59.000Z

405

Incorporation of Novel Nanostructured Materials into Solar Cells and Nanoelectronic Devices  

DOE Green Energy (OSTI)

Each of the investigators on this project has had significant accomplishments toward the production of semiconductor nanoparticles, particles, and thin films and attempts to incorporate these materials into photovoltaics or sensors; to use them for improving fluorescence diagnostics; or to employ them as cancer fighting agents. The synthesis and characterization of the nanomaterials, and more recently the device construction and testing of these materials, have been the subject of several publications and presentations by team members. During the course of the investigations, several students were fully involved as part of their graduate and undergraduate training. The nature of these projects in material development dictates that the students have gained significant experience in a diverse array of material-related topics.

Rodriguez, Rene; Pak, Joshua; Holland, Andrew; Hunt, Alan; Bitterwolf, Thomas; Qiang, You; Bergman, Leah; Berven, Christine; Punnoose, Alex; Tenne, Dmitri

2011-11-11T23:59:59.000Z

406

Incorporation of catalytic dehydrogenation into fischer-tropsch synthesis to significantly reduce carbon dioxide emissions  

SciTech Connect

A new method of producing liquid transportation fuels from coal and other hydrocarbons that significantly reduces carbon dioxide emissions by combining Fischer-Tropsch synthesis with catalytic dehydrogenation is claimed. Catalytic dehydrogenation (CDH) of the gaseous products (C1-C4) of Fischer-Tropsch synthesis (FTS) can produce large quantities of hydrogen while converting the carbon to multi-walled carbon nanotubes (MWCNT). Incorporation of CDH into a FTS-CDH plant converting coal to liquid fuels can eliminate all or most of the CO.sub.2 emissions from the water-gas shift (WGS) reaction that is currently used to elevate the H.sub.2 level of coal-derived syngas for FTS. Additionally, the FTS-CDH process saves large amounts of water used by the WGS reaction and produces a valuable by-product, MWCNT.

Huffman, Gerald P.

2012-11-13T23:59:59.000Z

407

STATEMENT OF CONSIDERATIONS REQUEST BY SOLAR TURBINES INCORPORATED FOR AN ADVANCE WAIVER  

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

FG02-00CH11062; W(A)-01-007; CH-1060 FG02-00CH11062; W(A)-01-007; CH-1060 As set out in attached waiver petition and in subsequent discussions with Solar Turbines Incorporated (Solar), Solar has requested an advance waiver of domestic and foreign patent rights for all subject inventions made under the above identified cooperative agreement by its employees and its subcontractors' employees, regardless of tier, except inventions made by subcontractors eligible to retain title to inventions pursuant to P.L. 96-517, as amended, or National Laboratories. The objective of the cooperative agreement is to develop new alloys for use in high temperature turbomachinery, and specifically, in the Primary Surface Recuperator (PSR) in Solar's Mercury 50 gas turbine. As brought out in paragraph 2 of Solar's petition, the new material will be used in

408

Incorporation of 4d and 5d Transition Metal Cyanometallates into Magnetic Clusters and Materials.  

E-Print Network (OSTI)

The work presented herein describes efforts to synthesize and characterize new types of cyanide-bridged molecular materials encompassing both discrete clusters and extended solids. This investigation focused on the incorporation of anisotropic 4d and 5d transition metal ion building blocks into such materials. In this vein, systematic studies on the magnetic properties of families of these cyano-bridges species were conducted and these new materials represent a new addition to the field of cyanide chemistry incorporating for the first time the hexacyanometallates of [Ru(CN)6]3- and [Os(CN)6]3- into discrete molecules and extended networks. These compounds will serve as models for new theoretical studies in understanding the role of magnetic exchange interactions, both isotropic and anisotropic, in the study of nanomagnetic materials. Results were obtained from using the well known octacyanometallates of MoV and WV as building blocks for the synthesis and the magnetic investigation of both trigonal bipyramidal and pentadecanuclear clusters including the discovery of a new SMM. By expanding the research to previously unused hexacyanometallates, the synthesis and characterization of the first known examples of clusters based on hexacyanoosmate(III) and hexacyanoruthenate(III) building blocks and their use in preparing new theoretical models of magnetic species. A novel pair of clusters is further detailed in the study of the trigonal bipyramidal clusters of [Fe(tmphen)2]3[Os(CN)6]2 and [Fe(tmphen)2]3[Ru(CN)6]2 and an in depth study of the CTIST behavior of these clusters using Mossbauer spectroscopy, variable temperature crystallography, epr, and variable temperature IR measurements. Finally, this work discusses new magnetic Prussian Blue analogs prepared from the hexacyanoosmate(III) and hexacyanoruthenate(III) anions with a comparison to the trigonal bipyramidal clusters presented based on these hexacyanoosmate(III) and hexacyanoruthenate(III) building blocks.

Hilfiger, Matthew Gary

2010-05-01T23:59:59.000Z

409

Flow pattern, void fraction and pressure drop of two-phase air-water flow in a horizontal circular micro-channel  

SciTech Connect

Adiabatic two-phase air-water flow characteristics, including the two-phase flow pattern as well as the void fraction and two-phase frictional pressure drop, in a circular micro-channel are experimentally studied. A fused silica channel, 320 mm long, with an inside diameter of 0.53 mm is used as the test section. The test runs are done at superficial velocity of gas and liquid ranging between 0.37-16 and 0.005-3.04 m/s, respectively. The flow pattern map is developed from the observed flow patterns i.e. slug flow, throat-annular flow, churn flow and annular-rivulet flow. The flow pattern map is compared with those of other researchers obtained from different working fluids. The present single-phase experiments also show that there are no significant differences in the data from the use of air or nitrogen gas, and water or de-ionized water. The void fraction data obtained by image analysis tends to correspond with the homogeneous flow model. The two-phase pressure drops are also used to calculate the frictional multiplier. The multiplier data show a dependence on flow pattern as well as mass flux. A new correlation of two-phase frictional multiplier is also proposed for practical application. (author)

Saisorn, Sira [Energy Division, The Joint Graduate School of Energy and Environment (JGSEE), King Mongkut's University of Technology Thonburi, Bangmod, Bangkok 10140 (Thailand); Wongwises, Somchai [Fluid Mechanics, Thermal Engineering and Multiphase Flow Research Laboratory (FUTURE), Department of Mechanical Engineering, King Mongkut's University of Technology Thonburi, Bangmod, Bangkok 10140 (Thailand)

2008-01-15T23:59:59.000Z

410

Incorporation of HPAC 5.0 Transport Phenomenology to RASCAL's Radiological Releases  

SciTech Connect

The purpose of this paper is to describe the incorporation of DTRA's HPAC (Hazard Prediction and Assessment Capability) code under the NRC's code RASCAL (Radiological Assessment System for Consequence AnaLysis). The current version of RASCAL (version 3.0.5) evaluates releases from: nuclear power plants, spent fuel storage pools and casks, fuel cycle facilities, and radioactive material handling facilities. It appears to be a single piece of software; however, it is a set of inter-linked modules. These elements include: (1) Source term: this module calculates a time-dependent source term, which for nuclear power plants, is composed of about 50 radionuclides including parents and daughters; (2) Meteorological data processor: this module interrupts weather observations and forecasts along with local topography to generate time-dependent wind fields used in the transport of the plume; (3) Atmospheric transport and diffusion: this module uses the wind fields with a two-dimensional Gaussian puff model to transport the plume downwind and to calculate concentrations of each radionuclide as a function of time and location; (4) Dose calculator: this module calculates various types of doses resulting from airborne releases (TEDE, thyroid, acute, etc.) to individuals at each location from three dose pathways--inhalation, cloudshine, and groundshine. It also calculates the longer-term intermediate phase doses from deposited radionuclides. The calculations are completely consistent with the EPA protective action guide manual and the methods adopted by the Federal Radiological Monitoring and Assessment Center (FRMAC); (5) Display of results: this module allows the user to display a wide variety of calculated results as either a picture of the plume footprint on a map background for each of the result types or as numeric table; and (6) Uranium hexafluoride module: for uranium hexafluoride releases, RASCAL contains a heavy gas model to account for the exothermic reaction with air and gravitational slumping of the plume. In summary, the incorporation of HPAC transport methodology under RASCAL provides for a much more defined prediction of the dispersion of the radiological material as well as the latest dose conversion factors following a postulated accident.

Sanders, Robert Lon [ORNL

2008-01-01T23:59:59.000Z

411

A generalized linear-quadratic model incorporating reciprocal time pattern of radiation damage repair  

Science Conference Proceedings (OSTI)

Purpose: It has been conventionally assumed that the repair rate for sublethal damage (SLD) remains constant during the entire radiation course. However, increasing evidence from animal studies suggest that this may not the case. Rather, it appears that the repair rate for radiation-induced SLD slows down with increasing time. Such a slowdown in repair would suggest that the exponential repair pattern would not necessarily accurately predict repair process. As a result, the purpose of this study was to investigate a new generalized linear-quadratic (LQ) model incorporating a repair pattern with reciprocal time. The new formulas were tested with published experimental data. Methods: The LQ model has been widely used in radiation therapy, and the parameter G in the surviving fraction represents the repair process of sublethal damage with T{sub r} as the repair half-time. When a reciprocal pattern of repair process was adopted, a closed form of G was derived analytically for arbitrary radiation schemes. The published animal data adopted to test the reciprocal formulas. Results: A generalized LQ model to describe the repair process in a reciprocal pattern was obtained. Subsequently, formulas for special cases were derived from this general form. The reciprocal model showed a better fit to the animal data than the exponential model, particularly for the ED50 data (reduced {chi}{sup 2}{sub min} of 2.0 vs 4.3, p = 0.11 vs 0.006), with the following gLQ parameters: {alpha}/{beta} = 2.6-4.8 Gy, T{sub r} = 3.2-3.9 h for rat feet skin, and {alpha}/{beta} = 0.9 Gy, T{sub r} = 1.1 h for rat spinal cord. Conclusions: These results of repair process following a reciprocal time suggest that the generalized LQ model incorporating the reciprocal time of sublethal damage repair shows a better fit than the exponential repair model. These formulas can be used to analyze the experimental and clinical data, where a slowing-down repair process appears during the course of radiation therapy.

Huang, Zhibin; Mayr, Nina A.; Lo, Simon S.; Wang, Jian Z.; Jia Guang; Yuh, William T. C.; Johnke, Roberta [Department of Radiation Oncology, East Carolina University, Greenville, North Carolina 27834 (United States); Department of Radiation Oncology, Ohio State University, Columbus, Ohio 43210 (United States); Department of Radiation Oncology, University Hospitals Case Medical Center, Case Western Reserve University, Cleveland, Ohio 44106 (United States); Department of Radiation Oncology, Ohio State University, Columbus, Ohio 43210 (United States); Department of Radiology, Ohio State University, Columbus, Ohio 43210 (United States); Department of Radiation Oncology, East Carolina University, Greenville, North Carolina, 27834 (United States)

2012-01-15T23:59:59.000Z

412

Incorporating Equipment Condition Assessment in Risk Monitors for Advanced Small Modular Reactors  

SciTech Connect

Advanced small modular reactors (aSMRs) can complement the current fleet of large light-water reactors in the USA for baseload and peak demand power production and process heat applications (e.g., water desalination, shale oil extraction, hydrogen production). The day-to-day costs of aSMRs are expected to be dominated by operations and maintenance (O&M); however, the effect of diverse operating missions and unit modularity on O&M is not fully understood. These costs could potentially be reduced by optimized scheduling, with risk-informed scheduling of maintenance, repair, and replacement of equipment. Currently, most nuclear power plants have a living probabilistic risk assessment (PRA), which reflects the as-operated, as-modified plant and combine event probabilities with population-based probability of failure (POF) for key components. Risk monitors extend the PRA by incorporating the actual and dynamic plant configuration (equipment availability, operating regime, environmental conditions, etc.) into risk assessment. In fact, PRAs are more integrated into plant management in todays nuclear power plants than at any other time in the history of nuclear power. However, population-based POF curves are still used to populate fault trees; this approach neglects the time-varying condition of equipment that is relied on during standard and non-standard configurations. Equipment condition monitoring techniques can be used to estimate the component POF. Incorporating this unit-specific estimate of POF in the risk monitor can provide a more accurate estimate of risk in different operating and maintenance configurations. This enhanced risk assessment will be especially important for aSMRs that have advanced component designs, which dont have an available operating history to draw from, and often use passive design features, which present challenges to PRA. This paper presents the requirements and technical gaps for developing a framework to integrate unit-specific estimates of POF into risk monitors, resulting in enhanced risk monitors that support optimized operation and maintenance of aSMRs.

Coble, Jamie B.; Coles, Garill A.; Meyer, Ryan M.; Ramuhalli, Pradeep

2013-10-01T23:59:59.000Z

413

Incorporation of Integral Fuel Burnable Absorbers Boron and Gadolinium into Zirconium-Alloy Fuel Clad Material  

SciTech Connect

Long-lived fuels require the use of higher enrichments of 235U or other fissile materials. Such high levels of fissile material lead to excessive fuel activity at the beginning of life. To counteract this excessive activity, integral fuel burnable absorbers (IFBA) are added to some rods in the fuel assembly. The two commonly used IFBA elements are gadolinium, which is added as gadolinium-oxide to the UO2 powder, and boron, which is applied as a zirconium-diboride coating on the UO2 pellets using plasma spraying or chemical vapor deposition techniques. The incorporation of IFBA into the fuel has to be performed in a nuclear-regulated facility that is physically separated from the main plant. These operations tend to be very costly because of their small volume and can add from 20 to 30% to the manufacturing cost of the fuel. Other manufacturing issues that impact cost and performance are maintaining the correct levels of dosing, the reduction in fuel melting point due to gadolinium-oxide additions, and parasitic neutron absorption at fuel's end-of-life. The goal of the proposed research is to develop an alternative approach that involves incorporation of boron or gadolinium into the outer surface of the fuel cladding material rather than as an additive to the fuel pellets. This paradigm shift will allow for the introduction of the IFBA in a non-nuclear regulated environment and will obviate the necessity of additional handling and processing of the fuel pellets. This could represent significant cost savings and potentially lead to greater reproducibility and control of the burnable fuel in the early stages of the reactor operation. The surface alloying is being performed using the IBEST (Ion Beam Surface Treatment) process developed at Sandia National Laboratories. IBEST involves the delivery of energetic ion beam pulses onto the surface of a material, near-surface melting, and rapid solidification. The non-equilibrium nature of such processing allows for surface alloying well in excess of the thermodynamically dictated solubility limits, an effect that is particularly relevant to this research due to the negligible solubility of boron and gadolinium in zirconium. University of Wisconsin is performing the near surface materials characterization and analysis, aiding Sandia in process optimization, and promoting educational activities. Westinghouse is performing process manufacturability and scale-up analysis and is performing autoclave testing of the surface treated samples. The duration of this NERI project is 2 years, from 9/2002 to 9/2004.

Sridharan, K.; Renk, T.J.; Lahoda, E.J.; Corradini, M.L

2004-12-14T23:59:59.000Z

414

Sulfur isotopic evidence for controls on sulfur incorporation in peat and coal  

Science Conference Proceedings (OSTI)

Pyritic sulfur isotope [delta][sup 34]S values were used as a measure of two principal controls on sulfur incorporation in peat and coal: the availability of sulfate, and the activity of sulfate-reducing bacteria in the peat-forming mire. Relatively low [delta][sup 34]S values indicated an open system with a relatively abundant supply of sulfate that exceeded the rate of sulfate reduction to sulfide, whereas relatively high [delta][sup 34]S values indicated a closed system with a more limited supply of sulfate. For example, in the high-sulfur (>3% S), Holocene deposits of Mud Lake, Florida, pyritic sulfur [delta][sup 34]S values decreasing sharply across the transition from peat to the overlying lacustrine sapropel, which corresponds to an increased supply of sulfate from the lake waters. Likewise, syngenetic pyrite in the high-sulfur Minto coal bed (Pictou Group, Westphalian C) in New Brunswick, Canada, show up to 10% negative shifts in [delta][sup 34]S in attrital layers containing detrital quartz and illite, consistent with an increased supply of sulfate from streams entering the peat-forming mire. In contrast, positive pyritic sulfur [delta][sup 34]S values in high-sulfur, channel-fill coal beds (lower Breathitt Formation, Middle Pennsylvanian) in eastern Kentucky indicate that a steady supply of sulfate was exhausted by very active microbial sulfate reduction in the channel-fill peat.

Spiker, E.C.; Bates, A.L. (Geological Survey, Reston, VA (United States))

1993-08-01T23:59:59.000Z

415

Stochastic modelling of landfill leachate and biogas production incorporating waste heterogeneity. Model formulation and uncertainty analysis  

Science Conference Proceedings (OSTI)

A mathematical model simulating the hydrological and biochemical processes occurring in landfilled waste is presented and demonstrated. The model combines biochemical and hydrological models into an integrated representation of the landfill environment. Waste decomposition is modelled using traditional biochemical waste decomposition pathways combined with a simplified methodology for representing the rate of decomposition. Water flow through the waste is represented using a statistical velocity model capable of representing the effects of waste heterogeneity on leachate flow through the waste. Given the limitations in data capture from landfill sites, significant emphasis is placed on improving parameter identification and reducing parameter requirements. A sensitivity analysis is performed, highlighting the model's response to changes in input variables. A model test run is also presented, demonstrating the model capabilities. A parameter perturbation model sensitivity analysis was also performed. This has been able to show that although the model is sensitive to certain key parameters, its overall intuitive response provides a good basis for making reasonable predictions of the future state of the landfill system. Finally, due to the high uncertainty associated with landfill data, a tool for handling input data uncertainty is incorporated in the model's structure. It is concluded that the model can be used as a reasonable tool for modelling landfill processes and that further work should be undertaken to assess the model's performance.

Zacharof, A.I.; Butler, A.P

2004-07-01T23:59:59.000Z

416

Properties of concrete incorporating high volumes of ASTM Class F fly ash  

E-Print Network (OSTI)

This thesis presents the results of research performed in developing high-volume fly ash (HVFA) concrete incorporating ASTM Type I cement and ASTM Class F fly ash from Big Brown Power Plant of TU Electric, Texas. In HVFA concrete, the proportion of fly ash was 58 percent by weight of the total cementitious materials, the water and cement content were kept low at 115 and 155 k g/M3 , respectively. A broad range of engineering properties was investigated including compressive strength, flexural strength, splitting-tensile strength, Young's modulus of elasticity, drying shrinkage, resistance to freeze-thaw cycling, pore structure and activation energy. A preliminary economic analysis was also performed on HVFA concrete. The HVFA concrete evaluated in this study had satisfactory workability and setting characteristics. It also exhibited excellent mechanical properties with satisfactory early age strength and good long-term strength development. The HVFA concrete had relatively low drying shrinkage and a very fine pore system. Excellent durability under freeze-thaw cycling was also found for the air-entrained HVFA concrete. Results from activation energy test show that strength gain of the HVFA concrete under isothermal curing conditions could be modeled appropriately using Plowman's logarithmic strength-age model. The relative strength-maturity relationship was established for the HVFA concrete containing various percentages of additional gypsum. The HVFA concrete investigated was determined to be cost effective. It was shown that about two and half dollars per cubic meter could be saved through savings on portland cement.

Li, Wei Tung

1995-01-01T23:59:59.000Z

417

Stability of uranium incorporated into Fe(hydr)oxides under fluctuating redox conditions  

SciTech Connect

Reaction pathways resulting in uranium bearing solids that are stable (i.e., having limited solubility) under both aerobic and anaerobic conditions will limit dissolved concentrations and migration of this toxin. Here we examine the sorption mechanism and propensity for release of uranium reacted with Fe (hydr)oxides under cyclic oxidizing and reducing conditions. Upon reaction of ferrihydrite with Fe(II) under conditions where aqueous Ca-UO{sub 2}-CO{sub 3} species predominate (3 mM Ca and 3.8 mM CO{sub 3}-total), dissolved uranium concentrations decrease from 0.16 mM to below detection limit (BDL) after 5 to 15 d, depending on the Fe(II) concentration. In systems undergoing 3 successive redox cycles (15 d of reduction followed by 5 d of oxidation) and a pulsed decrease to 0.15 mM CO{sub 3}-total, dissolved uranium concentrations varied depending on the Fe(II) concentration during the initial and subsequent reduction phases - U concentrations resulting during the oxic 'rebound' varied inversely with the Fe(II) concentration during the reduction cycle. Uranium removed from solution remains in the oxidized form and is found both adsorbed on and incorporated into the structure of newly formed goethite and magnetite. Our 15 results reveal that the fate of uranium is dependent on anaerobic/aerobic conditions, aqueous uranium speciation, and the fate of iron.

Stewart, B.D.; Nico, P.S.; Fendorf, S.

2009-04-01T23:59:59.000Z

418

Incorporating qualitative objectives in integrated resource planning: Application of analytic hierarchy process and compromise programming  

SciTech Connect

This article proposes a multiobjective methodology for the integrated resource planning (IRP) problem using a combined analytic hierarchy process (AHP)-compromise programming (CP) model. Six objectives, of which five are qualitative in nature, have been considered to select demand and supply-side resources for meeting future electricity demand. The quantitative objective (viz., cost) is employed directly in the CP model. AHP priorities are derived for the qualitative objectives (e.g., technological maturity) after eliciting expert judgments. These priorities are employed as coefficients of the decision variables in the objective functions corresponding to the qualitative objectives of the model. The two distinct advantages of this method are (1) explicit consideration of all important qualitative and quantitative aspects of demand-side management (DSM) and supply-side options, and (2) consideration of specific characteristics of various types of DSM options. An illustrative application is provided for an Indian utility (Maharashtra State Electricity System) for its integrated resource plan for the period 1990--2000. The results show that the AHP-CP model incorporating qualitative objectives selects a different portfolio of DSM and supply options, as compared with single-criterion solutions. Compromise among the conflicting objectives leads to significant cost savings as well as qualitative benefits like improved system reliability, reduced environmental impact, fewer problems related to fuel supply, and shorter project installation times.

Koundinya, S.; Chattopadhyay, D.; Ramanathan, R. [Indira Gandhi Inst. of Development Research, Bombay (India)

1995-09-01T23:59:59.000Z

419

Incorporating Wind Generation Forecast Uncertainty into Power System Operation, Dispatch, and Unit Commitment Procedures  

DOE Green Energy (OSTI)

In this paper, an approach to evaluate the uncertainties of the balancing capacity, ramping capability, and ramp duration requirements is proposed. The approach includes three steps: forecast data acquisition, statistical analysis of retrospective information, and prediction of grid balancing requirements for a specified time horizon and a given confidence level. Assessment of the capacity and ramping requirements is performed using a specially developed probabilistic algorithm based on histogram analysis, incorporating sources of uncertainty of both continuous (wind and load forecast errors) and discrete (forced generator outages and start-up failures) nature. A new method called the "flying-brick" technique is developed to evaluate the look-ahead required generation performance envelope for the worst case scenario within a user-specified confidence level. A self-validation process is used to validate the accuracy of the confidence intervals. To demonstrate the validity of the developed uncertainty assessment methods and its impact on grid operation, a framework for integrating the proposed methods with an EMS system is developed. Demonstration through integration with an EMS system illustrates the applicability of the proposed methodology and the developed tool for actual grid operation and paves the road for integration with EMS systems from other vendors.

Makarov, Yuri V.; Etingov, Pavel V.; Huang, Zhenyu; Ma, Jian; Subbarao, Krishnappa

2010-10-19T23:59:59.000Z

420

Incorporating Uncertainty of Wind Power Generation Forecast into Power System Operation, Dispatch, and Unit Commitment Procedures  

Science Conference Proceedings (OSTI)

An approach to evaluate the uncertainties of the balancing capacity, ramping capability, and ramp duration requirements is proposed. The approach includes three steps: forecast data acquisition, statistical analysis of retrospective information, and prediction of grid balancing requirements for a specified time horizon and a given confidence level. An assessment of the capacity and ramping requirements is performed using a specially developed probabilistic algorithm based on histogram analysis, incorporating sources of uncertainty - both continuous (wind and load forecast errors) and discrete (forced generator outages and start-up failures). A new method called the 'flying-brick' technique is developed to evaluate the look-ahead required generation performance envelope for the worst case scenario within a user-specified confidence level. A self-validation process is used to validate the accuracy of the confidence intervals. To demonstrate the validity of the developed uncertainty assessment methods and its impact on grid operation, a framework for integrating the proposed methods with an EMS system is developed. Demonstration through EMS integration illustrates the applicability of the proposed methodology and the developed tool for actual grid operation and paves the road for integration with EMS systems in control rooms.

Makarov, Yuri V.; Etingov, Pavel V.; Ma, Jian; Huang, Zhenyu; Subbarao, Krishnappa

2011-06-23T23:59:59.000Z

Note: This page contains sample records for the topic "hughes incorporated dropped" from the National Library of EnergyBeta (NLEBeta).
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421

INCORPORATION OF MONO SODIUM TITANATE AND CRYSTALLINE SILICOTITANATE FEEDS IN HIGH LEVEL NUCLEAR WASTE GLASS  

Science Conference Proceedings (OSTI)

Four series of glass compositions were selected, fabricated, and characterized as part of a study to determine the impacts of the addition of Crystalline Silicotitanate (CST) and Monosodium Titanate (MST) from the Small Column Ion Exchange (SCIX) process on the Defense Waste Processing Facility (DWPF) glass waste form and the applicability of the DWPF process control models. All of the glasses studied were considerably more durable than the benchmark Environmental Assessment (EA) glass. The measured Product Consistency Test (PCT) responses were compared with the predicted values from the current DWPF durability model. One of the KT01-series and two of the KT03-series glasses had measured PCT responses that were outside the lower bound of the durability model. All of the KT04 glasses had durabilities that were predictable regardless of heat treatment or compositional view. In general, the measured viscosity values of the KT01, KT03, and KT04-series glasses are well predicted by the current DWPF viscosity model. The results of liquidus temperature (T{sub L}) measurements for the KT01-series glasses were mixed with regard to the predictability of the T{sub L} for each glass. All of the measured T{sub L} values were higher than the model predicted values, although most fell within the 95% confidence intervals. Overall, the results of this study show a reasonable ability to incorporate the anticipated SCIX streams into DWPF-type glass compositions with TiO{sub 2} concentrations of 4-5 wt % in glass.

Fox, K.; Johnson, F.; Edwards, T.

2010-11-23T23:59:59.000Z

422

Improving Area Control Error Diversity Interchange (ADI) Program by Incorporating Congestion Constraints  

SciTech Connect

The area control error (ACE) determines how much a balancing authority (BA) needs to move its regulating units to meet mandatory control performance standard requirements. Regulation is an expensive resource that could cost several hundred million dollars a year for a BA. The amount of regulation needed in a system is increasing with more intermittent generation resources added to the system. The ACE diversity interchange (ADI) program provides a tool for reducing the regulation requirement by combining ACEs from several participating BAs followed by sharing the total ACE among all participating balancing areas. The effect is achieved as a result of the low statistical correlation between the original ACEs of participating BAs. A rule-based ADI approach has already been put into practice in the US Western Interconnection. The degree of actual ACE sharing is artificially limited because of the unknown redistribution of power flows and possible system congestion (these factors are not monitored in the existing ADI). This paper proposes a two-step linear programming (LP) ADI approach that incorporates congestion constraints. In the first step of the proposed LP ADI, the line transmission limits are enforced by setting up corresponding constraints. In the second step, the business fairness is pursued. Simulation is performed to compare the properties of the proposed LP ADI and the existing rule-based ADI. Favorable features, such as avoiding line limit violations and increasing the degree of possible ACE sharing, are observed for the proposed LP ADI.

Zhou, Ning; Etingov, Pavel V.; Makarov, Yuri V.; Guttromson, Ross T.; McManus, Bart

2010-04-30T23:59:59.000Z

423

Incorporation of oxidized uranium into Fe (hydr)oxides during Fe(II) catalyzed remineralization  

SciTech Connect

The form of solid phase U after Fe(II) induced anaerobic remineralization of ferrihydrite in the presence of aqueous and absorbed U(VI) was investigated under both abiotic batch and biotic flow conditions. Experiments were conducted with synthetic ground waters containing 0.168 mM U(VI), 3.8 mM carbonate, and 3.0 mM Ca{sup 2+}. In spite of the high solubility of U(VI) under these conditions, appreciable removal of U(VI) from solution was observed in both the abiotic and biotic systems. The majority of the removed U was determined to be substituted as oxidized U (U(VI) or U(V)) into the octahedral position of the goethite and magnetite formed during ferrihydrite remineralization. It is estimated that between 3% and 6% of octahedral Fe(III) centers in the new Fe minerals were occupied by U(VI). This site specific substitution is distinct from the non-specific U co-precipitation processes in which uranyl compounds, e.g. uranyl hydroxide or carbonate, are entrapped with newly formed Fe oxides. The prevalence of site specific U incorporation under both abiotic and biotic conditions and the fact that the produced solids were shown to be resistant to both extraction (30 mM KHCO{sub 3}) and oxidation (air for 5 days) suggest the potential importance of sequestration in Fe oxides as a stable and immobile form of U in the environment.

Nico, Peter S.; Stewart, Brandy D.; Fendorf, Scott

2009-07-01T23:59:59.000Z

424

Incorporating long-term climate change in performance assessment for the Waste Isolation Pilot Plant  

SciTech Connect

The United States Department of Energy (DOE) is developing the Waste Isolation Pilot Plant (WIPP) in southeastern New Mexico for the disposal of transuranic wastes generated by defense programs. Applicable regulations (40 CFR 191) require the DOE to evaluate disposal-system performance for 10,000 yr. Climatic changes may affect performance by altering groundwater flow. Paleoclimatic data from southeastern New Mexico and the surrounding area indicate that the wettest and coolest Quaternary climate at the site can be represented by that at the last glacial maximum, when mean annual precipitation was approximately twice that of the present. The hottest and driest climates have been similar to that of the present. The regularity of global glacial cycles during the late Pleistocene confirms that the climate of the last glacial maximum is suitable for use as a cooler and wetter bound for variability during the next 10,000 yr. Climate variability is incorporated into groundwater-flow modeling for WIPP PA by causing hydraulic head in a portion of the model-domain boundary to rise to the ground surface with hypothetical increases in precipitation during the next 10,000 yr. Variability in modeled disposal-system performance introduced by allowing head values to vary over this range is insignificant compared to variability resulting from other causes, including incomplete understanding of transport processes. Preliminary performance assessments suggest that climate variability will not affect regulatory compliance.

Swift, P.N. [Sandia National Labs., Albuquerque, NM (United States); Baker, B.L. [Technadyne Engineering Consultants, Inc., Albuquerque, NM (United States); Economy, K. [Ecodynamics Research Associates, Albuquerque, NM (United States); Garner, J.W. [Applied Physics, Inc., Albuquerque, NM (United States); Helton, J.C. [Arizona State Univ., Tempe, AZ (United States); Rudeen, D.K. [New Mexico Engineering Research Inst., Albuquerque, NM (United States)

1993-09-18T23:59:59.000Z

425

Quantum mechanical analogue of the zeroth law of thermodynamics. (On the problem of incorporating Thermodynamics into Quantum Theory)  

E-Print Network (OSTI)

This approach to the incorporation of stochastic thermodynamics into quantum theory is based on the conception of consistent inclusion of the holistic stochastic environmental influence described by wave functions of the arbitrary vacuum, which was proposed in our paper previously. In this study, we implement the possibility of explicitly incorporating the zeroth law of stochastic thermodynamics in the form of the saturated Schr\\"odinger uncertainty relation into quantum theory. This allows comparatively analyzing the sets of states of arbitrary vacuums, namely, squeezed coherent states (SCSs) and correlated coherent states (CCSs). In addition, we compare the results of the construction of stochastic thermodynamics using SCSs and TCCSs with the versions involving the incorporation of thermodynamics into quantum theory developed previously and based on thermofield dynamics and quantum statistical mechanics.

O. N. Golubjeva; A. D. Sukhanov

2013-03-25T23:59:59.000Z

426

Incorporating Active-learning into a Web-based Ethics Course  

E-Print Network (OSTI)

This report explores the development of interactive, web-based activities in a Computer Science course for majors that meets the requirements of the Computer Science Accreditation Commission (CSAC) for a course in computer ethics and social impact. Starting from a project to develop a digital library to support a longstanding course in "Professionalism in Computing", this web-based version has steadily evolved into a modular resource that permits teachers at other institutions to construct their own versions of an ethics and social impact course. For the past two years the passive nature of the digital library approach has been revised to incorporate active-learning concepts. While maintaining the belief that the teaching of ethics and social impact still requires some classroom interaction between participants and collaborative development activities, each topical module has been augmented by on-line active-learning plans that involve pre-class, in-class, and post-class projects. The preclass activities allow participants to gain a basic understanding of the topic prior to the class, to review assigned readings from the library, to surf the web for additional resources, and possibly to participate in an opinion survey that can be used as the basis for an in-class discussion. Post-class projects involve the application of learned concepts to the lives of the participants and the institution. An on-line debate system that emulates an "Oxford Union" style debate, forcing participants to clearly take pro or con positions on arguments, is an integral part of the course, though also available as an independent module. Used asynchronously, the debate system gives the opportunity for discussions to extend beyond the time limit of a class period, can involve several sections of...

John A. N. Lee

1999-01-01T23:59:59.000Z

427

Issues and methods in incorporating environmental externalities into the integrated resource planning process  

Science Conference Proceedings (OSTI)

This report is a review of current practices and policies in considering environmental externalities in the integrated resource planning and performance based regulation (IRP/PBR) process. The following issues are presented and examined: What are the pros and cons of treating environmental externalities in the IRP process? How are potential future environmental regulations being treated? Are externalities being qualitatively or quantitatively considered, or monetized? Are offsets being allowed? How are externality policies being coordinated among different levels and branches of governments? Should environmental externalities be considered in dispatching a utility`s existing resources? What are the procedures for addressing uncertainty in incorporating environmental externalities into IRP? How are externalities valued? What are other approaches to addressing environmental externalities. This report describes seven major approaches for addressing environmental externalities in the IRP process: qualitative treatment, weighting and ranking, cost of control, damage function, percentage adders, monetization by emission, and multiattribute trade-off analysis. The discussion includes a taxonomy of the full range of alternative methods for addressing environmental externalities, a summary of state PUC actions, the role of state laws, the debate on environmental adders, and the choice of methodologies. In addition, this report characterizes the interests of stakeholders such as the electric industry, fuel suppliers, energy consumers, governmental agencies, public interest groups, consultants, and others. It appears that the views, positions, and interests of these stakeholders are affected by their perceptions of the potential impacts on their economic interests or the viability of their position on environmental policy, by the societal perspective they take, and by the orientation of the analysts toward market competition and their respective accumulated expertise.

Fang, J.M.; Galen, P.S.

1994-11-01T23:59:59.000Z

428

Incorporation of system operation strategies in water rights modeling and analysis  

E-Print Network (OSTI)

of the state of Texas. Effective management of this stochastic resource requires that the availability of water for various uses be estimated to a high degree of confidence. The availability of water is constrained by a variety of hydrologic, physical, environmental, and institutional factors. The adoption of the doctrine of prior appropriation by the state of Texas and the administration of the associated system of water rights places a significant institutional constraint upon the availability of water in the state. This thesis describes a generalized river basin simulation model (TAMUWRAP) capable of analyzing the hydrologic and institutional availability of water to specific users under a prior appropriative system of water rights. The model analyzes the availability of water to individual water rights considering system reservoir operations, return flows, hydroelectric power generation, negative incremental inflows between basin locations, and buffer zone operations. The model can also determine the availability of water to groups of water rights with multiple dates of priority and storage in multiple reservoirs. A case study applying TAMUWRAP to the Brazos River Basin in Texas is presented. The effects of various model options upon simulation results are demonstrated, concentrating on the system of reservoirs and water right permits owned by the Brazos River Authority. The effects of the incorporation of a system reservoir operating permit into the Texas water rights permit structure is investigated. Study results indicate that the Bmws River Authority benefits from conjunctive operation of its system of reservoir and might be able to increase its annual permitted diversion amount with a system permit.

Dunn, David Douglas

1993-01-01T23:59:59.000Z

429

Incorporating uncertainties into risk assessment with an application to the exploratory studies facilities at Yucca Mountain  

Science Conference Proceedings (OSTI)

A methodology that incorporates variability and reducible sources of uncertainty into the probabilistic and consequence components of risk was developed. The method was applied to the north tunnel of the Exploratory Studies Facility at Yucca Mountain in Nevada. In this assessment, variability and reducible sources of uncertainty were characterized and propagated through the risk assessment models using a Monte Carlo based software package. The results were then manipulated into risk curves at the 5% and 95% confidence levels for both the variability and overall uncertainty analyses, thus distinguishing between variability and reducible sources of uncertainty. In the Yucca Mountain application, the designation of the north tunnel as an item important to public safety, as defined by 10 CFR 60, was determined. Specifically, the annual frequency of a rock fall breaching a waste package causing an off-site dose of 500 mrem (5x10{sup -3} Sv) was calculated. The annual frequency, taking variability into account, ranged from 1.9x10{sup -9} per year at the 5% confidence level to 2.5x10{sup -9} per year at the 95% confidence level. The frequency range after including all uncertainty was 9.5x10{sup -10} to 1.8x10{sup -8} per year. The maximum observable frequency, at the 100% confidence level, was 4.9x10{sup -8} per year. This is below the 10{sup -6} per year frequency criteria of 10 CFR 60. Therefore, based on this work, the north tunnel does not fall under the items important to public safety designation for the event studied.

Fathauer, P.M.

1995-08-01T23:59:59.000Z

430

Effect of silicate modulus and metakaolin incorporation on the carbonation of alkali silicate-activated slags  

SciTech Connect

Accelerated carbonation is induced in pastes and mortars produced from alkali silicate-activated granulated blast furnace slag (GBFS)-metakaolin (MK) blends, by exposure to CO{sub 2}-rich gas atmospheres. Uncarbonated specimens show compressive strengths of up to 63 MPa after 28 days of curing when GBFS is used as the sole binder, and this decreases by 40-50% upon complete carbonation. The final strength of carbonated samples is largely independent of the extent of metakaolin incorporation up to 20%. Increasing the metakaolin content of the binder leads to a reduction in mechanical strength, more rapid carbonation, and an increase in capillary sorptivity. A higher susceptibility to carbonation is identified when activation is carried out with a lower solution modulus (SiO{sub 2}/Na{sub 2}O ratio) in metakaolin-free samples, but this trend is reversed when metakaolin is added due to the formation of secondary aluminosilicate phases. High-energy synchrotron X-ray diffractometry of uncarbonated paste samples shows that the main reaction products in alkali-activated GBFS/MK blends are C-S-H gels, and aluminosilicates with a zeolitic (gismondine) structure. The main crystalline carbonation products are calcite in all samples and trona only in samples containing no metakaolin, with carbonation taking place in the C-S-H gels of all samples, and involving the free Na{sup +} present in the pore solution of the metakaolin-free samples. Samples containing metakaolin do not appear to have the same availability of Na{sup +} for carbonation, indicating that this is more effectively bound in the presence of a secondary aluminosilicate gel phase. It is clear that claims of exceptional carbonation resistance in alkali-activated binders are not universally true, but by developing a fuller mechanistic understanding of this process, it will certainly be possible to improve performance in this area.

Bernal, Susan A., E-mail: susana.bernal@gmail.co [Materials Engineering Department, Composite Materials Group, CENM, Universidad del Valle, Cali (Colombia); Mejia de Gutierrez, Ruby [Materials Engineering Department, Composite Materials Group, CENM, Universidad del Valle, Cali (Colombia); Provis, John L., E-mail: jprovis@unimelb.edu.a [Department of Chemical and Biomolecular Engineering, University of Melbourne, Victoria 3010 (Australia); Rose, Volker [Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

2010-06-15T23:59:59.000Z

431

Algorithms for Incorporation of Dynamic Recovery in Estimating Frequency of Critical Station Blackout  

E-Print Network (OSTI)

This thesis involves exploring enhancement of estimating the probability of a critical station blackout in nuclear power plant operations by the use of direct numerical evaluation of multidimensional nonrecovery integrals. This requires development of computational methods with data provided from South Texas Project Nuclear Operating Company (STPNOC). Several methods that are currently used in the industry to estimate such probabilities often overestimate the value substantially. The computational integral method developed in the thesis will reduce excess conservatism while maintaining plant safety standards. This computational integral is calculated using a MATLAB research code referred to generally as "STP-TAMIL" which is for South Texas Project --Texas A&M Improved LOOP. The code itself (along with the user manual) was developed in conjunction with this Thesis. STP-TAMIL is successful in reducing the estimated probability of critical station blackout by a significant amount (about 88.47 percent ) with the incorporation of recovery of offsite and onsite power for South Texas Project? s nuclear plants, and results were verified. This thesis also describes an asymptotic justification for to the non-recovery integral used. Applications to the industry, or STPNOC, which will use the "TAMIL" code are addressed. Some assumptions used throughout the problem suggest that if more dynamic rates or distributions are used then more recovery can be obtained, which will decrease the probability of critical station blackout. Methodology developed in this thesis will be used in future work to develop this STP-TAMIL research code into a model used industry wide in commercial nuclear power plants.

Rodi, Paul J.

2012-05-01T23:59:59.000Z

432

Advanced insulations for refrigerator/freezers: The potential for new shell designs incorporating polymer barrier construction  

Science Conference Proceedings (OSTI)

The impending phase-out of chlorofluorocarbons (CFCs) used to expand foam insulation, combined with requirements for increased energy efficiency, make the use of non-CFC-based high performance insulation technologies increasingly attractive. The majority of current efforts are directed at using advanced insulations in the form of thin, flat low-conductivity gas-filled or evacuated orthogonal panels, which we refer to as Advanced Insulation Panels (AIPs). AIPs can be used in composite with blown polymer foams to improve insulation performance in refrigerator/freezers (R/Fs) of conventional design and manufacture. This AIP/foam composite approach is appealing because it appears to be a feasible, near-term method for incorporating advanced insulations into R/Fs without substantial redesign or retooling. However, the requirements for adequate flow of foam during the foam-in-place operation impose limitations on the allowable thickness and coverage area of AIPs. This report examines design alternatives which may offer a greater increase in overall thermal resistance than is possible with the use of AIP/foam composites in current R/F design. These design alternatives generally involve a basic redesign of the R/F taking into account the unique requirements of advanced insulations and the importance of minimizing thermal bridging with high thermal resistance insulations. The focus here is on R/F doors because they are relatively simple and independent R/F components and are therefore good candidates for development of alterative designs. R/F doors have significant thermal bridging problems due to the steel outer shell construction. A three dimensional finite difference computer modeling exercise of a R/F door geometry was used to compare the overall levels of thermal resistance (R-value) for various design configurations.

Griffith, B.T.; Arasteh, D.

1992-11-01T23:59:59.000Z

433

Incorporating Single-nucleotide Polymorphisms Into the Lyman Model to Improve Prediction of Radiation Pneumonitis  

SciTech Connect

Purpose: To determine whether single-nucleotide polymorphisms (SNPs) in genes associated with DNA repair, cell cycle, transforming growth factor-{beta}, tumor necrosis factor and receptor, folic acid metabolism, and angiogenesis can significantly improve the fit of the Lyman-Kutcher-Burman (LKB) normal-tissue complication probability (NTCP) model of radiation pneumonitis (RP) risk among patients with non-small cell lung cancer (NSCLC). Methods and Materials: Sixteen SNPs from 10 different genes (XRCC1, XRCC3, APEX1, MDM2, TGF{beta}, TNF{alpha}, TNFR, MTHFR, MTRR, and VEGF) were genotyped in 141 NSCLC patients treated with definitive radiation therapy, with or without chemotherapy. The LKB model was used to estimate the risk of severe (grade {>=}3) RP as a function of mean lung dose (MLD), with SNPs and patient smoking status incorporated into the model as dose-modifying factors. Multivariate analyses were performed by adding significant factors to the MLD model in a forward stepwise procedure, with significance assessed using the likelihood-ratio test. Bootstrap analyses were used to assess the reproducibility of results under variations in the data. Results: Five SNPs were selected for inclusion in the multivariate NTCP model based on MLD alone. SNPs associated with an increased risk of severe RP were in genes for TGF{beta}, VEGF, TNF{alpha}, XRCC1 and APEX1. With smoking status included in the multivariate model, the SNPs significantly associated with increased risk of RP were in genes for TGF{beta}, VEGF, and XRCC3. Bootstrap analyses selected a median of 4 SNPs per model fit, with the 6 genes listed above selected most often. Conclusions: This study provides evidence that SNPs can significantly improve the predictive ability of the Lyman MLD model. With a small number of SNPs, it was possible to distinguish cohorts with >50% risk vs <10% risk of RP when they were exposed to high MLDs.

Tucker, Susan L., E-mail: sltucker@mdanderson.org [Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Li Minghuan [Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, Shandong (China)] [Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, Shandong (China); Xu Ting; Gomez, Daniel [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Yuan Xianglin [Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan (China)] [Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan (China); Yu Jinming [Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, Shandong (China)] [Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, Shandong (China); Liu Zhensheng; Yin Ming; Guan Xiaoxiang; Wang Lie; Wei Qingyi [Department of Epidemiology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Epidemiology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Mohan, Radhe [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Vinogradskiy, Yevgeniy [University of Colorado School of Medicine, Aurora, Colorado (United States)] [University of Colorado School of Medicine, Aurora, Colorado (United States); Martel, Mary [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Liao Zhongxing [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)

2013-01-01T23:59:59.000Z

434

Incorporating supercritical steam turbines into molten-salt power tower plants : feasibility and performance.  

SciTech Connect

Sandia National Laboratories and Siemens Energy, Inc., examined 14 different subcritical and supercritical steam cycles to determine if it is feasible to configure a molten-salt supercritical steam plant that has a capacity in the range of 150 to 200 MWe. The effects of main steam pressure and temperature, final feedwater temperature, and hot salt and cold salt return temperatures were determined on gross and half-net efficiencies. The main steam pressures ranged from 120 bar-a (subcritical) to 260 bar-a (supercritical). Hot salt temperatures of 566 and 600%C2%B0C were evaluated, which resulted in main steam temperatures of 553 and 580%C2%B0C, respectively. Also, the effects of final feedwater temperature (between 260 and 320%C2%B0C) were evaluated, which impacted the cold salt return temperature. The annual energy production and levelized cost of energy (LCOE) were calculated using the System Advisory Model on 165 MWe subcritical plants (baseline and advanced) and the most promising supercritical plants. It was concluded that the supercritical steam plants produced more annual energy than the baseline subcritical steam plant for the same-size heliostat field, receiver, and thermal storage system. Two supercritical steam plants had the highest annual performance and had nearly the same LCOE. Both operated at 230 bar-a main steam pressure. One was designed for a hot salt temperature of 600%C2%B0C and the other 565%C2%B0C. The LCOEs for these plants were about 10% lower than the baseline subcritical plant operating at 120 bar-a main steam pressure and a hot salt temperature of 565%C2%B0C. Based on the results of this study, it appears economically and technically feasible to incorporate supercritical steam turbines in molten-salt power tower plants.

Pacheco, James Edward; Wolf, Thorsten [Siemens Energy, Inc., Orlando, FL; Muley, Nishant [Siemens Energy, Inc., Orlando, FL

2013-03-01T23:59:59.000Z

435

Abstract--An optimization model that incorporates demand in the paradigm of smart grids and distributed generation is  

E-Print Network (OSTI)

, Maximum expected demand in the optimization period Cost associated to energy generated by demand from1 Abstract--An optimization model that incorporates demand in the paradigm of smart grids and distributed generation is formulated. The objective is to transform the demand into an active agent that helps

Catholic University of Chile (Universidad Católica de Chile)

436

1 to be published in Wind Energy Many engineering systems incorporate prognostics and health management (PHM), which consists of technologies  

E-Print Network (OSTI)

1 to be published in Wind Energy ABSTRACT Many engineering systems incorporate prognostics exist for wind energy systems, they do not specifically quantify the value of decisions after: GHaddad@slb.com. 1. INTRODUCTION Wind energy is at the forefront of alternative energy sources. The US

Sandborn, Peter

437

Incorporating voltage security into the planning, operation and monitoring of restructured electric energy markets  

E-Print Network (OSTI)

As open access market principles are applied to power systems, significant changes are happening in their planning, operation and control. In the emerging marketplace, systems are operating under higher loading conditions as markets focus greater attention to operating costs than stability and security margins. Since operating stability is a basic requirement for any power system, there is need for newer tools to ensure stability and security margins being strictly enforced in the competitive marketplace. This dissertation investigates issues associated with incorporating voltage security into the unbundled operating environment of electricity markets. It includes addressing voltage security in the monitoring, operational and planning horizons of restructured power system. This dissertation presents a new decomposition procedure to estimate voltage security usage by transactions. The procedure follows physical law and uses an index that can be monitored knowing the state of the system. The expression derived is based on composite market coordination models that have both PoolCo and OpCo transactions, in a shared stressed transmission grid. Our procedure is able to equitably distinguish the impacts of individual transactions on voltage stability, at load buses, in a simple and fast manner. This dissertation formulates a new voltage stability constrained optimal power flow (VSCOPF) using a simple voltage security index. In modern planning, composite power system reliability analysis that encompasses both adequacy and security issues is being developed. We have illustrated the applicability of our VSCOPF into composite reliability analysis. This dissertation also delves into the various applications of voltage security index. Increasingly, FACT devices are being used in restructured markets to mitigate a variety of operational problems. Their control effects on voltage security would be demonstrated using our VSCOPF procedure. Further, this dissertation investigates the application of steady state voltage stability index to detect potential dynamic voltage collapse. Finally, this dissertation examines developments in representation, standardization, communication and exchange of power system data. Power system data is the key input to all analytical engines for system operation, monitoring and control. Data exchange and dissemination could impact voltage security evaluation and therefore needs to be critically examined.

Nair, Nirmal-Kumar

2004-12-01T23:59:59.000Z

438

Impact evaluation of an Energy $avings Plan project at Holnam Incorporated  

SciTech Connect

This impact evaluation of four energy conservation measures (ECMs) that were recently installed at Holnam Incorporated (Holnam) was conducted for the Bonneville Power Administration (Bonneville) as part of an evaluation of its Energy $avings Plan (E$P) Program. The Program makes acquisition payments to firms that install energy conservation measures in their industrial processes. The objective of this impact evaluation was to assess how much electrical energy is being saved at Holnam as a result of the E$P and to determine how much the savings cost Bonneville and the region. The impact of the ECMs was evaluated with a combination of engineering analysis, financial analysis, site visit and interview, and review of previous program submittals (Holnam`s Proposals and Completion Reports). The four ECMs were all electronic power control devices that replaced less efficient technologies for controlling power to the kiln drive motors, cooler grate drive motors, cooler fan motors, and kiln stack gas precipitators. Energy savings from this project are expected to be 1,782,000 kWh/yr or 0.20 average megawatts. On a unit production basis, this project will save 3.4 kWh/ton of cement, based on Holnam`s projected average annual future production rate. The four ECMs cost a total of $248,232 to install, and Holnam received payment of $115,615 from Bonneville for the acquisition of energy savings. Program administrative costs incurred by Bonneville, Pacific Northwest Laboratory (PNL), and Seattle City Light (SCL) were estimated to be $29,362. The real levelized cost (1992 $) of these energy savings to Bonneville will be 6.2 mills/kWh over the project`s expected 15-year life, and the real levelized cost (1992 $) to the region will be 14.1 mills/kWh. Based on expected ECM installation costs and energy savings benefits alone, none of the four ECMs would have been implemented by Holnam without the E$P acquisition payment.

Brown, D.R.; Spanner, G.E.

1993-05-01T23:59:59.000Z

439

Impact evaluation of an Energy $avings Plan project at Holnam Incorporated  

SciTech Connect

This impact evaluation of four energy conservation measures (ECMs) that were recently installed at Holnam Incorporated (Holnam) was conducted for the Bonneville Power Administration (Bonneville) as part of an evaluation of its Energy $avings Plan (E$P) Program. The Program makes acquisition payments to firms that install energy conservation measures in their industrial processes. The objective of this impact evaluation was to assess how much electrical energy is being saved at Holnam as a result of the E$P and to determine how much the savings cost Bonneville and the region. The impact of the ECMs was evaluated with a combination of engineering analysis, financial analysis, site visit and interview, and review of previous program submittals (Holnam's Proposals and Completion Reports). The four ECMs were all electronic power control devices that replaced less efficient technologies for controlling power to the kiln drive motors, cooler grate drive motors, cooler fan motors, and kiln stack gas precipitators. Energy savings from this project are expected to be 1,782,000 kWh/yr or 0.20 average megawatts. On a unit production basis, this project will save 3.4 kWh/ton of cement, based on Holnam's projected average annual future production rate. The four ECMs cost a total of $248,232 to install, and Holnam received payment of $115,615 from Bonneville for the acquisition of energy savings. Program administrative costs incurred by Bonneville, Pacific Northwest Laboratory (PNL), and Seattle City Light (SCL) were estimated to be $29,362. The real levelized cost (1992 $) of these energy savings to Bonneville will be 6.2 mills/kWh over the project's expected 15-year life, and the real levelized cost (1992 $) to the region will be 14.1 mills/kWh. Based on expected ECM installation costs and energy savings benefits alone, none of the four ECMs would have been implemented by Holnam without the E$P acquisition payment.

Brown, D.R.; Spanner, G.E.

1993-05-01T23:59:59.000Z

440

Attitudes of Texas agrilife extension 4-H agents on incorporating science, technology, engineering, and math (STEM) in 4-H youth development.  

E-Print Network (OSTI)

??The purpose of this study was to determine the attitudes of Texas Agrilife Extension county 4-H agents on incorporating science, technology, engineering, and math (STEM) (more)

[No author

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441

Estimating the Accuracy of Polarimetric RadarBased Retrievals of Drop-Size Distribution Parameters and Rain Rate: An Application of Error Variance Separation Using Radar-Derived Spatial Correlations  

Science Conference Proceedings (OSTI)

The accuracy of retrieving the two drop size distribution (DSD) parameters, median volume diameter (D0), and normalized intercept parameter (NW), as well as rain rate (R), from polarimetric C-band radar data obtained during a cool-season, long-...

M. Thurai; V. N. Bringi; L. D. Carey; P. Gatlin; E. Schultz; W. A. Petersen

2012-06-01T23:59:59.000Z

442

Structural and optical studies of nitrogen incorporation into GaSb-based GaInSb quantum wells  

Science Conference Proceedings (OSTI)

We investigate the incorporation of nitrogen into (Ga,In)Sb grown on GaSb and report room temperature photoluminescence from GaInSb(N) quantum wells. X-ray diffraction and channeling nuclear reaction analysis, together with Rutherford backscattering, were employed to identify the optimal molecular beam epitaxial growth conditions that minimized the incorporation of non-substitutional nitrogen into GaNSb. Consistent with this hypothesis, GaInSb(N) quantum wells grown under the conditions that minimized non-substitutional nitrogen exhibited room temperature photoluminescence, indicative of significantly improved radiative efficiency. Further development of this material system could enable type-I laser diodes emitting throughout the (3-5 {mu}m) wavelength range.

Nair, Hari P.; Crook, Adam M.; Bank, Seth R. [Microelectronics Research Center, Electrical and Computer Engineering, University of Texas at Austin, 10100 Burnet Rd, Austin, Texas 78712 (United States); Yu, Kin M. [Electronic Materials Program, Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

2012-01-09T23:59:59.000Z

443

Impact of the Ga/In ratio on the N incorporation into (In,Ga)(As,N) quantum dots  

Science Conference Proceedings (OSTI)

In this work, we demonstrate the dependence of the nitrogen incorporation on the Ga/In content into (In,Ga)(As,N) quantum dots (QDs) grown on GaAs (100) by radio-frequency plasma assisted molecular beam epitaxy (MBE). Morphological analysis by atomic force microscopy and cross-sectional transmission electron microscopy, together with an estimation of the transition thickness, monitored in situ during the growth, predict a maximum in the N incorporation for 30% Ga content. This result is confirmed by photoluminescence measurements of the as-grown and post-growth annealed samples. We attribute this behavior to a trade off between two mechanisms depending on the Ga/In content: one related to the stability of the Ga-N bond, and the other related to the surface strain and/or In segregation.

Gargallo-Caballero, R.; Guzman, A.; Ulloa, J. M.; Hierro, A. [Instituto de Sistemas Optoelectronicos y Microtecnologia (ISOM)-Departamento de Ingenieria Electronica, ETSI Telecomunicacion, Universidad Politecnica de Madrid, Ciudad Universitaria s/n, 28040 Madrid (Spain); Hopkinson, M. [Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 3JD (United Kingdom); Luna, E.; Trampert, A. [Paul Drude Institut fuer Festkoerperelektronik, Hausvogteiplatz 5-7, 10117 Berlin (Germany)

2012-04-15T23:59:59.000Z

444

Physical and Chemical Characterization of Kuwaiti Atmospheric Dust and Synthetic Dusts: Effects on the Pressure Drop and Fractional Efficiency of HEPA Filters  

E-Print Network (OSTI)

The importance of clean air to the indoor air quality affecting the well-being of human occupants and rising energy consumption has highlighted the critical role of air filter performance. Actual performance of air filters installed in air handling units in Kuwait tends to deviate from the performance predicted by laboratory results. Therefore, accurate filter performance prediction is important to estimate filter lifetime, and to reduce energy and maintenance operating costs. To ensure appropriate filter selection for a specific application, particulate contaminants existing in the Kuwaiti atmospheric dust were identified and characterized both physically and chemically and compared to the synthetic dust used in laboratories. This paper compares the physical and chemical characterization Kuwaiti atmospheric dust with the available commercial synthetic dusts. It also tests full scale HEPA pleated V-shaped filters used in Heating Ventilation and Air Conditioning (HVAC) and gas turbine applications to study the effect of different synthetic dust types and their particle size distributions on the pressure drop and fractional efficiency using DEHS testing according to DIN 1822.

Al-Attar, I.; Wakeman, R. J.; Tarleton, E. S.; Husain, A.

2010-01-01T23:59:59.000Z

445

Experimental study of a R-407C drop-in test on an off-the-shelf air conditioner with a counter-cross-flow evaporator  

SciTech Connect

An off-the-shelf 2-ton window air conditioner having an energy efficiency ratio of 10 was used to perform a drop-in test with R-407C. Laboratory tests were performed using a parallel-cross-flow (PCF) evaporator and a counter-cross-flow (CCF) evaporator. The CCF configuration is designed to take advantage of the temperature glide of R-407C so that the warm evaporator inlet air will be in contact with the higher temperature part of the evaporator coils first. The test results indicated that, at the Air Conditioning and Refrigeration Institute-rated indoor and outdoor conditions, the cooling capacity was 8% higher and system coefficient of performance about 3.8% higher for the CCF evaporator than for the PCF evaporator. The test results also showed that the latent load for CCF was 30.6% higher than for PCF. The far better dehumidification effect provided by the CCF evaporator design is desirable for areas where the latent load is high. The experimental findings should be useful for future efforts to design a dehumidifier that uses a zeotropic refrigerant that provides a significant temperature glide. R-22 test data from a previous project are included as a reference.

Mei, V.C.; Domitrovic, R.; Chen, F.C.

1998-03-01T23:59:59.000Z

446

Rapid gasification of nascent char in steam atmosphere during the pyrolysis of Na- and Ca-ion-exchanged brown coals in a drop-tube reactor  

Science Conference Proceedings (OSTI)

Several recent studies on in situ steam gasification of coal suggest a possibility of extremely fast steam gasification of char from rapid pyrolysis of pulverized brown coal. The unprecedented rate of char steam gasification can be achieved by exposing nascent char, that is, after tar evolution (temperature range >600{sup o}C), but before devolatilization (coal samples, that is, H-form coal with Na/Ca contents coal with Na content = 2.8 wt % and Ca-form coal with Ca content = 3.2 wt %. These samples were pyrolyzed in an atmospheric drop-tube reactor at a temperature of 900{sup o}C, inlet steam concentration of 50 vol. %, and a particle residence times of 2.8 s. The char yields from the pyrolysis of Na-form and Ca-form coals were as low as 12 and 33% on the respective coal carbon bases, and accounted for only 18 and 53% of the char yields from the full devolatilization of the respective coals at 900{sup o}C. In addition, the pyrolysis also consumed as much as 0.7-1.1 mol of H{sub 2}O per mol of coal C. On the other hand, the nascent char from the H-form coal allowed carbon deposition from the nascent tar, resulting in a char yield as high as 115% of that from the full devolatilization. The chars from the Na-form and Ca-form coals also acted as catalysts for steam reforming of tar, which was evidenced by significant negative synergistic effects of blending of H-form coal with Na-form coal or Ca-form coal on the tar and soot yields. 57 refs., 6 figs.

Ondej Maek; Sou Hosokai; Koyo Norinaga; Chun-Zhu Li; Jun-ichiro Hayashi [Hokkaido University, Kita-ku (Japan). Center for Advanced Research of Energy Conversion Materials

2009-09-15T23:59:59.000Z

447

Indium and impurity incorporation in InGaN films on polar, nonpolar, and semipolar GaN orientations grown by ammonia molecular beam epitaxy  

SciTech Connect

The effects of NH{sub 3} flow, group III flux, and substrate growth temperature on indium incorporation and surface morphology have been investigated for bulk InGaN films grown by ammonia molecular beam epitaxy. The incorporation of unintentional impurity elements (H, C, O) in InGaN films was studied as a function of growth temperature for growth on polar (0001) GaN on sapphire templates, nonpolar (1010) bulk GaN, and semipolar (1122), (2021) bulk GaN substrates. Enhanced indium incorporation was observed on both (1010) and (2021) surfaces relative to c-plane, while reduced indium incorporation was observed on (1122) for co-loaded conditions. Indium incorporation was observed to increase with decreasing growth temperature for all planes, while being relatively unaffected by the group III flux rates for a 1:1 Ga:In ratio. Indium incorporation was found to increase at the expense of a decreased growth rate for higher ammonia flows; however, smooth surface morphology was consistently observed for growth on semipolar orientations. Increased concentrations of oxygen and hydrogen were observed on semipolar and nonpolar orientations with a clear trend of increased hydrogen incorporation with indium content.

Browne, David A.; Young, Erin C.; Lang, Jordan R.; Hurni, Christophe A.; Speck, James S. [Materials Department, University of California Santa Barbara, Santa Barbara, California 93106 (United States)

2012-07-15T23:59:59.000Z

448

Evaluation of sintering effects on SiC incorporated UO2 kernels under Ar and Ar-4%H2 environments  

SciTech Connect

Silicon carbide (SiC) is suggested as an oxygen getter in UO2 kernels used for TRISO particle fuels to lower oxygen potential and prevent kernel migration during irradiation. Scanning electron microscopy and X-ray diffractometry analyses performed on sintered kernels verified that internal gelation process can be used to incorporate SiC in urania fuel kernels. Sintering in either Ar or Ar-4%H2 at 1500 C lowered the SiC content in the UO2 kernels to some extent. Formation of UC was observed as the major chemical phase in the process, while other minor phases such as U3Si2C2, USi2, U3Si2, and UC2 were also identified. UC formation was presumed to be occurred by two reactions. The first was the SiC reaction with its protective SiO2 oxide layer on SiC grains to produce volatile SiO and free carbon that subsequently reacted with UO2 to form UC. The second process was direct UO2 reaction with SiC grains to form SiO, CO, and UC, especially in Ar-4%H2. A slightly higher density and UC content was observed in the sample sintered in Ar-4%H2, but the use of both atmospheres produced kernels with ~95% of theoretical density. It is suggested that incorporating CO in the sintering gas would prevent UC formation and preserve the initial SiC content.

Silva, Chinthaka M [ORNL] [ORNL; Lindemer, Terrence [Harbach Engineering and Solutions] [Harbach Engineering and Solutions; Hunt, Rodney Dale [ORNL] [ORNL; Collins, Jack Lee [ORNL] [ORNL; Terrani, Kurt A [ORNL] [ORNL; Snead, Lance Lewis [ORNL] [ORNL

2013-01-01T23:59:59.000Z

449

Conceptual design study on incorporating a 25-ton/day pyrolysis unit into an operating total energy system. Final report  

DOE Green Energy (OSTI)

The results of a conceptual design study on incorporating a pyrolysis unit into an existing total energy plant are presented. The objectives of this study were to examine the institutional, technical and economic factors affecting the incorporation of a 25-ton/day pyrolysis unit into the Indian Creek Total Energy Plant. The Indian Creek total energy plant is described. Results of the conceptual design are presented. A survey of the availability of waste materials and a review of health and safety ordinances are included. The technical aspects of the pyrolysis system are discussed, including the results of the review of facilities requirements for the pyrolysis unit, the analysis of necessary system modification, and an estimate of the useful energy contribution by the pyrolysis unit. Results of the life-cycle cost analysis of the pyrolysis unit are presented. The major conclusions are that: there appears to be no institutional or technical barriers to constructing a waste pyrolysis unit at the Indian Creek Total Energy Plant; pyrolysis gas can be consumed in the engines and the boilers by utilizing venturi mixing devices; the engines can consume only 5% of the output of the 25-ton/day pyrolysis unit; Therefore, consumption of pyrolysis gas will be controlled by boiler energy demand patterns; a waste pyrolysis unit is not cost effective at the current natural gas price of $0.90/10/sup 6/ Btu; and pyrolysis is economically attractive at natural gas prices above $3.00/10/sup 6/ Btu.

None

1976-12-13T23:59:59.000Z

450

Solar energy and multi-storey residential buildings Larry Hughes and Tylor Wood  

E-Print Network (OSTI)

Factsheet on Summer Heat Gain and Winter Heat Loss In the summer we often feel warm in buildings and in the winter we may feel cold. This may be due to heating from solar gain and heat loss during the winter (see that you stay cool or warm. You can: · Draw blinds to stop solar gain and winter losses · You can wear

Hughes, Larry

451

New Regional Employment Dynamics? By James W. Hughes and Joseph J. Seneca  

E-Print Network (OSTI)

into the Garden State. As prime midtown Manhattan office rentals trend above $80 per square foot, the attraction efficient and cost- competitive place of doing postindustrial business in the region. However, following and growing business costs, Manhattan remains in hot demand. The positive side of this for New Jersey

452

Space Heating Trends in Prince Edward Island and Nova Scotia1 Mandeep Dhaliwal and Larry Hughes  

E-Print Network (OSTI)

in energy intensity. The residential sector uses energy for space heating, water heating, appliances Heating 60% Water Heating 21% Appliances 13% Lighting 5% Space Cooling 1% Figure 1: Residential Sector Scotia's energy policy goes one step further and supports R-2000 and Energuide for new houses (NSDOE

Hughes, Larry

453

Preparing for the Peak: Energy Security and Atlantic Canada 1 Larry Hughes  

E-Print Network (OSTI)

region that will be particularly vulnerable to peak oil, since almost all of the region's oil is imported is destined for markets outside the region. This paper examines some of the potential impacts of peak oil the reliance on refined petroleum products for space heating and transportation. When peak oil production

Hughes, Larry

454

The Femme Fatale Tells Her Story: Dorothy Hughes and WWII Crime Fiction  

E-Print Network (OSTI)

Most studies of feminism in crime fiction begin with authorsand 80s. However, popular crime fiction of the noir andmale- only roots of the crime novel cannot be ignored, but

Rolens, Claire

2012-01-01T23:59:59.000Z

455

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

456

50 IEEE power & energy magazine july/august 2007 by Hugh Rudnick,  

E-Print Network (OSTI)

claims arising from events and transactions in Western electricity markets during the period from Jan. 1 will be transferred to the CAISO to be distributed in a manner consistent with the CAISO's Commission-approved tariff Parties include: Pacific Gas and Electric Company; Southern California Edison Company; San Diego Gas

Catholic University of Chile (Universidad Católica de Chile)

457

Direct detection of dark matter with liquid argon and neon Walter Hugh Lippincott  

E-Print Network (OSTI)

Lippincott Dissertation Director: Professor Daniel McKinsey December 2010 #12;i c Copyright 2010 by Walter

McKinsey, Daniel

458

Future world oil production: Growth, plateau, or peak?1 Larry Hughes and Jacinda Rudolph  

E-Print Network (OSTI)

" and "Unconventional." Conventional oil is typically the highest quality, lightest oil, which flows from underground reservoirs with comparative ease, and it is the least expensive to produce. Unconventional oils are heavy the problem will be pervasive and long lasting. Oil peaking repre- sents a liquid fuels prob- lem

Hughes, Larry

459

By James W. Hughes and Joseph J. SenecaA quarterly and Central  

E-Print Network (OSTI)

, such as the availability of skilled labor, available utilities for power, fiber infrastructure, connectivity--a full six years. Thus, it is no longer youthful, but has firmly entered middle age. And it is slowing

460

Review, reduce, and replace: The three `R's of energy security Larry Hughes  

E-Print Network (OSTI)

of the Arctic National Wildlife Refuge (ANWR) in the eastern part of the Arctic Slope comes a heightened concern

Hughes, Larry

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461

The challenge of meeting Canada's greenhouse gas reduction Larry Hughes and Nikhil Chaudhry  

E-Print Network (OSTI)

; Vlosky 2002 #12;s The first MDF plant started up four years ago and now there are 3 or 4, so furniture for exotic wood veneer layup. Pressing veneer on MDF will give the most defect-free, flat and smooth surface

Hughes, Larry

462

Incorporating TOMS Ozone Measurements into the Prediction of the Washington, D.C., Winter Storm during 2425 January 2000  

Science Conference Proceedings (OSTI)

In this study, a methodology is proposed for incorporating total column ozone data from the Total Ozone Mapping Spectrometer (TOMS) into the initial conditions of a mesoscale prediction model. Based on the strong correlation between vertical mean ...

Kun-Il Jang; X. Zou; M. S. F. V. De Pondeca; M. Shapiro; C. Davis; A. Krueg