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1

Leading Edge Technologies Inc | Open Energy Information  

Open Energy Info (EERE)

Leading Edge Technologies Inc Leading Edge Technologies Inc Jump to: navigation, search Name Leading Edge Technologies Inc Place Lakeland, Florida Product Profitable manufacturer of lithium ion batteries for consumer electronics makers that merged with Skylab Technologies Group Inc in September 2001 to form Solicore. Coordinates 35.264796°, -89.724114° 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":35.264796,"lon":-89.724114,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

2

Research Led by Sandia Reveals Leading-Edge Erosion Significantly...  

Broader source: Energy.gov (indexed) [DOE]

Research Led by Sandia Reveals Leading-Edge Erosion Significantly Reduces Wind Turbine Performance Research Led by Sandia Reveals Leading-Edge Erosion Significantly Reduces Wind...

3

The fish tail motion forms an attached leading edge vortex  

Science Journals Connector (OSTI)

...research-article Research articles 1001 25 18 The fish tail motion forms an attached leading edge...of the most prominent characteristics of fishes, and the analysis of the flow pattern...this mechanism has not been reported in fish-like swimming probably owing to the overemphasis...

Iman Borazjani; Mohsen Daghooghi

2013-01-01T23:59:59.000Z

4

Boundary element simulation of oscillating foil with leading-edge separation  

E-Print Network [OSTI]

In this thesis, we develop a numerical model to account for the leading-edge separation for the boundary element simulation of the oscillating foil with potential flow assumption. Similar to the trailing-edge separation, ...

Dong, Xiaoxia, S.M. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

5

Hydrodynamic effects of leading-edge tubercles on control surfaces and in flapping foil propulsion  

E-Print Network [OSTI]

This thesis investigates the hydrodynamic effects of biologically-inspired leading-edge tubercles. Two complementary studies examine the performance of three-dimensional hydrofoils based on the pectoral flippers of the ...

Stanway, Michael Jordan

2008-01-01T23:59:59.000Z

6

Leading Edge Flow Structure of a Dynamically Pitching NACA 0012 Airfoil  

E-Print Network [OSTI]

LEADING EDGE FLOW STRUCTURE OF A DYNAMICALLY PITCHING NACA 0012 AIRFOIL A Thesis by BRANDON JAMES PRUSKI Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of MASTER... OF SCIENCE Approved by: Chair of Committee, Rodney Bowersox Committee Members, Helen Reed Simon North Head of Department, Rodney Bowersox December 2012 Major Subject: Aerospace Engineering Copyright 2012 Brandon James Pruski ABSTRACT The leading edge...

Pruski, Brandon

2012-11-27T23:59:59.000Z

7

Research Led by Sandia Reveals Leading-Edge Erosion Significantly Reduces Wind Turbine Performance  

Broader source: Energy.gov [DOE]

Research conducted by DOE's Sandia National Laboratories revealed that leading-edge erosion on wind turbine blades can have a detrimental effect on wind turbine aerodynamic performance within the second year of operation. Light erosion may lead to a 5% decrease in annual energy production, and heavy erosion may reduce energy production by as much as 25%.

8

The effects of a jet on vortex breakdown over a sharp leading-edge delta wing  

E-Print Network [OSTI]

THE EFFECTS OF A JET ON VORTEX BREAKDOWN OVER A SHARP LEADING-EDGE DELTA WING A Thesis Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1985... Major Subject: Aerospace Engineering THE EFFECTS OF A JET ON VORTEX BREAKDOWN OVER A SHARP LEADING-EDGE DELTA WING A Thesis by IAN KENNETH MAYNARD Approved as to style and content by: Cyrus Ostowar (Chairman of Committee) Stan J Miley (M er...

Maynard, Ian Kenneth

2012-06-07T23:59:59.000Z

9

1092 The Leading Edge September 2008 The SEG Foundation's Summer Field Camp grant  

E-Print Network [OSTI]

1092 The Leading Edge September 2008 The SEG Foundation's Summer Field Camp grant program received. Their commitment of $500 000, to be de- livered in five annual installments, includes funds for field camp grants have been the primary recipients of these grants. Since 2006, the field camps grant program has been

10

Evaluation of a sodium/Hastelloy-X heat pipe for wing leading edge cooling  

SciTech Connect (OSTI)

This report covers assembly of a sodium heat pipe, testing to verify performance during start-up and under steady-state conditions with stagnation point heat loads to about 80 W/cm{sup 2}, performance analysis and evaluation. Evaluation of this leading edge cooling concept is offered and recommendations for further research discussed.

Merrigan, M.A.; Sena, J.T. [Los Alamos National Lab., NM (United States); Glass, D.E. [Analytical Services and Materials, Hampton, VA (United States)

1996-12-31T23:59:59.000Z

11

The Tilt of the Leading Edge of Mesoscale Tropical Convective Lines  

Science Journals Connector (OSTI)

The tilt with height of the leading edge of seven mesoscale convective lines in GATE is determined by two independent methods. When averaged over time and along the line axis, the tilt is found to he surprisingly shallow, between 20 and 35 ...

M. A. LeMone; G. M. Barnes; E. J. Szoke; E. J. Zipser

1984-03-01T23:59:59.000Z

12

APRIL 1998 THE LEADING EDGE 461 ncreases in computing power and advances in mathe-  

E-Print Network [OSTI]

optimization theory have combined to produce a new generation of algorithms that can invert geophysical dataAPRIL 1998 THE LEADING EDGE 461 ncreases in computing power and advances in mathe- matical. In this short article, we illustrate both the practicability of inverting geophysical data and the impor- tant

Oldenburg, Douglas W.

13

Heat pipes for wing leading edges of hypersonic vehicles. Final report  

SciTech Connect (OSTI)

Wing leading edge heat pipes were conceptually designed for three types of vehicle: an entry research vehicle, aero-space plane, and advanced shuttle. A full scale, internally instrumented sodium/Hastelloy X heat pipe was successfully designed and fabricated for the advanced shuttle application. The 69.4 inch long heat pipe reduces peak leading edge temperatures from 3500 F to 1800 F. It is internally instrumented with thermocouples and pressure transducers to measure sodium vapor qualities. Large thermal gradients and consequently large thermal stresses, which have the potential of limiting heat pipe life, were predicted to occur during startup. A test stand and test plan were developed for subsequent testing of this heat pipe. Heat pipe manufacturing technology was advanced during this program, including the development of an innovative technique for wick installation.

Boman, B.L.; Citrin, K.M.; Garner, E.C.; Stone, J.E.

1990-01-01T23:59:59.000Z

14

Eliciting a human understandable model of ice adhesion strength for rotor blade leading edge materials from uncertain experimental data  

E-Print Network [OSTI]

on the thermal conductivity of isotropic materials that protect the leading edge of the blade from erosion. For this reason, electro-thermal de-icing is not ideal for new high erosion resistant polymer based leading edge protec- tion materials because they have lower thermal conductivity than isotropic materials. Due

Granada, Universidad de

15

Hypersonic aerospace vehicle leading-edge cooling using heat-pipe, transpiration and film-cooling techniques  

SciTech Connect (OSTI)

The feasibility of cooling hypersonic-vehicle leading-edge structures exposed to severe aerodynamic surface heat fluxes was studied, using a combination of liquid-metal heat pipes and surface-mass-transfer cooling techniques. A generalized, transient, finite-difference-based hypersonic leading-edge cooling model was developed that incorporated these effects and was demonstrated on an assumed aerospace plane-type wing leading edge section and a SCRAMJET engine inlet leading-edge section. The hypersonic leading-edge cooling model was developed using an existing, experimentally verified heat-pipe model. Then the existing heat-pipe model was modified by adding both transpiration and film-cooling options as new surface boundary conditions. The models used to predict the leading-edge surface heat-transfer reduction effects of the transpiration and film cooling were modifications of more-generalized, empirically based models obtained from the literature. It is concluded that cooling leading-edge structures exposed to severe hypersonic-flight environments using a combination of liquid-metal heat pipe, surface transpiration, and film cooling methods appears feasible.

Modlin, J.M.

1991-01-01T23:59:59.000Z

16

Foreign object damage on the leading edge of gas turbine blades  

Science Journals Connector (OSTI)

Abstract The severe damages to the leading edge of aircraft blades occur when millimeter-sized particles such as sands, gravels or even the pieces of the engine components impact those of blades, which is called hard body impact or foreign object damage. This damage produces the geometry discontinuity such as the notch on the blades which becomes the site for fatigue crack initiation. FOD on the leading edge of the turbine blade is done by using the finite element method in this paper. Experimental stress analysis is performed for investigating the stress concentration factor at the crater base and is compared with the data from the finite element and the analytical method. The comparison shows that the finite element method results agree well with the experimental and analytical data at the crater base. Then the residual stress along the largest blade length is obtained for the potential crack initiating regions, and at the end, the analysis focuses on the comparison between the quasi-static indentation and fully dynamic impact for three critical locations where the tensile residual stresses cause crack initiation.

Seyed Masoud Marandi; Kh. Rahmani; Mehdi Tajdari

2014-01-01T23:59:59.000Z

17

Aerothermal Effects of Interfacial Leakage and Film Cooling Schemes with Endwall and Leading Edge Contouring  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Aerothermal Effects of Interfacial Aerothermal Effects of Interfacial Leakage and Film Cooling Schemes with Endwall and Leading Edge Contouring T.W. Simon and R. J. Goldstein Principal Investigators SCIES Project U/02-01-SR096/DOE PR DOE COOPERATIVE AGREEMENT DE-FC26-02NT41431 Tom J. George, Program Manger, DOE/NETL Richard Wenglarz, Manager of Research, SCIES Project Awarded (5/1/2002, 36 months) $459,007 Total Contract Value ($430,619 DOE) Gas Turbine Technology Needs and Project Objectives * Improved performance and reliability - More effective cooling of turbine first stage passage * Improve schemes for injection of endwall coolant * Realize cooling benefits of leakage flows * Understand effects of component misalignment - Reduced secondary flows * Improve with endwall axial contouring and airfoil/endwall fillets

18

The Video Wall Project Video Technology at the Leading Edge in Education Stephen Giles and David Abramson,  

E-Print Network [OSTI]

into the application of high­speed networks (Internet2, Next Generation Internet) in higher education and there haveThe Video Wall Project ­ Video Technology at the Leading Edge in Education Stephen Giles and David Abramson, School of Computer Science and Software Engineering, Faculty of Information Technology, Monash

Abramson, David

19

Flow visualization and leakage measurements of worn labyrinth seals  

E-Print Network [OSTI]

A large-scale flow visualization test facility is used to conduct an experimental investigation into the leakage resistance and flow characteristics of worn labyrinth seals. Wear in labyrinth seals is a consequence of contact between the rotating...

Allen, Brian Frank

1997-01-01T23:59:59.000Z

20

Activity recognition with hand-worn magnetic sensors  

Science Journals Connector (OSTI)

Activity recognition is a key technology for realizing ambient assisted living applications such as care of the elderly and home automation. This paper proposes a new activity recognition method that employs hand-worn magnetic sensors to recognize a ... Keywords: Activity recognition, Ambient assisted living, Magnetic sensor, Wearable sensors

Takuya Maekawa; Yasue Kishino; Yasushi Sakurai; Takayuki Suyama

2013-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "worn leading edge" 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

Lead  

Broader source: Energy.gov (indexed) [DOE]

topic topic Lead 8:00 AM 8:15 AM Welcome and Webinar Rules Maloy 8:15 AM 8:30 AM NE Materials Introduction Lesica 8:30 AM 9:00 AM Advanced Reactor Concepts Sham 9:00 AM 9:30 AM SMR Corwin 9:30 AM 10:00 AM VHTR Materials Wright 10:00 AM 10:15 AM Coffee Break 10:15 AM 10:45 AM Fuel Cycle Research and Development Maloy 10:45 AM 11:15 AM LWR Sustainability Busby 11:15 AM 11:45 AM Summary/Discussion All Discussion topic - Development of Advanced ODS alloys Lead 8:00 AM 8:15 AM Welcome and Webinar Rules Maloy 8:15 AM 8:30 AM Advanced Materials for Fast Reactor Core Materials Maloy 8:30 AM 9:00 AM High Dose MA-957 testing Toloczko 9:00 AM 9:30 AM FCRD ODS Material Development- FCRD-NFA1 Hoelzer 9:30 AM 10:00 AM NFA Processing Odette 10:00 AM 10:15 AM Coffee Break 10:15 AM 10:45 AM 9Cr ODS Material Development Byun 10:45 AM

22

Investigation into the failure cause of a double-acting, leading-edge-groove, tilting-pad thrust bearing. Final report, Feb-Aug 90  

SciTech Connect (OSTI)

This report describes the results of bench tests simulating operation and failure of a thrust bearing used in a gas turbine engine compressor development test rig. The bearing was a double acting, tilting pad with offset pivot, leading edge groove configuration using an AMS 4928 titanium collar and C18200 copper-chrome alloy pads with a No. 2 babbitt face. The bench tests successfully simulated the bearing failure and demonstrated a materials incompatibility. This was supported by visual examination, scanning electron microscopy and X-ray energy spectroscopy. A comparison of the bench test results to the compressor rig bearing failure is provided to support the report conclusions.

Peterson, B.K.

1990-10-01T23:59:59.000Z

23

Digits: Freehand 3D Interactions Anywhere Using a Wrist-Worn Gloveless Sensor  

E-Print Network [OSTI]

on the move. By instrumenting only the wrist, the user's entire hand is left to interact freely withoutDigits: Freehand 3D Interactions Anywhere Using a Wrist-Worn Gloveless Sensor David Kim1,2 , Otmar@ics.forth.gr, p.l.olivier@ncl.ac.uk Figure 1: A) Digits is a wrist-worn sensor for freehand 3D interactions

24

Graph Algorithms Edge Coloring  

E-Print Network [OSTI]

: Perfect Matching Graph Algorithms 6 #12;Edge Covering An edge covering, EC E, is a set of edges #12;Example: Edge Covering Graph Algorithms 8 #12;Example: Minimal Edge Covering Graph Algorithms 9 #12;Example: Minimum Size Edge Covering Graph Algorithms 10 #12;Matching and Edge Covering Definition

Bar-Noy, Amotz

25

Observations of Edge Turbulence  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Edge Turbulence Edge Turbulence near the X-point of Alcator C-Mod APS-2007 (1) J.L. Terry, S.J. Zweben*, B. LaBombard, I. Cziegler, O. Grulke + , D.P. Stotler* MIT - Plasma Science and Fusion Center *Princeton Plasma Physics Laboratory + MPI for Plasma Physics, EURATOM Assoc., Greifswald, Germany American Physical Society - Div. of Plasma Physics Orlando, FL Nov. 12 - Nov. 16, 2007 APS-2007 (2) Background and Motivation for "Xpt-region" View Strong edge turbulence has been observed in nearly all magnetic confinement devices. Desire predictive capability Most previous measurements made near outboard midplane where the turbulence has the following main features: - generation is ballooning-like (absent at inboard midplane, etc.) - filaments/blobs moves radially outward with some poloidal motion

26

Manufacturing telecommunications in Brazil: from leading edge to maquilas  

Science Journals Connector (OSTI)

Brazil had the preconditions for the development of a national manufacturing capability in wireless phones. The weak performance of state-run phone system created pent up demand for wireless telecommunications. Pro-active government policies helped to build a research and development capacity, including a successful switching technology. However, incoherence in policies led to eventual failure of efforts to create national production. Brazil is now a maquila manufacturer, largely involved in labour-intensive assembly operations for foreign multinationals with few local development linkages. Brazil's experience provides a cautionary tale for the importance of consistent policies, for locating the appropriate relationship between public and private sectors in consonance with opportunities provided by technological and market cycles.

Anil Hira; Luciana Thibau M. Da Rocha Socorro

2012-01-01T23:59:59.000Z

27

Leading Edge Studying Circuits with Therapy in Mind  

E-Print Network [OSTI]

frameworks for information processing. Without these, it is unclear whether the ``big data'' produced by new on all of the time, winter or summer. Now imagine the fuel supplied to be the same for every house, big or small. That is the state of current electrical brain stimulation therapies in Parkinson's disease

Shenoy, Krishna V.

28

Leading Edge Technology in Diesel Emissions Control | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. p-02roberts.pdf More Documents & Publications NO2 Management in...

29

Leading Edge Wnt/b-Catenin Signaling and Disease  

E-Print Network [OSTI]

transduction to the nuclear response of the recipient cell. Wnt Proteins Are Lipid Modified: Wnt Secretion and Varmus, 1982). The Wnt1 proto-oncogene encodes a secreted, cysteine-rich protein. The fly Wingless (wg decades. Below, we discuss these, taking the reader from Wnt secretion through Wnt reception and signal

Bejerano, Gill

30

Thermal Management at Hypersonic Leading Edges A Dissertation  

E-Print Network [OSTI]

as the single-use coating eventually vaporizes. The RCC approach manages the intense heat by operating at high temperatures and radiating heat to its surroundings. The effectiveness of both approaches is predicated ________________________________________________________________________ This dissertation has explored an alternative metallic TPS concept which seeks to redistribute the heat from

Wadley, Haydn

31

River Edge Redevelopment Zone (Illinois)  

Broader source: Energy.gov [DOE]

The purpose of the River Edge Redevelopment Program is to revive and redevelop environmentally challenged properties adjacent to rivers in Illinois.

32

lead-isotope dating  

Science Journals Connector (OSTI)

lead-isotope dating, lead-lead dating, lead-isotope age measurement, lead-lead age measurement ? Blei-Isotopen(-Alters)bestimmung, f, Blei-Isotopen-Datierung

2014-08-01T23:59:59.000Z

33

Edge-edge interactions in stacked graphene nanoplatelets  

SciTech Connect (OSTI)

High-resolution transmission electron microscopy (HRTEM) studies show the dynamics of small graphene platelets on larger graphene layers. The platelets move nearly freely to eventually lock in at well-defined positions close to the edges of the larger underlying graphene sheet. While such movement is driven by a shallow potential energy surface described by an interplane interaction, the lock-in position occurs by via edge-edge interactions of the platelet and the graphene surface located underneath. Here we quantitatively study this behavior using van der Waals density functional calculations. Local interactions at the open edges are found to dictate stacking configurations that are different from Bernal (AB) stacking. These stacking configurations are known to be otherwise absent in edge-free two-dimensional (2D) graphene. The results explain the experimentally observed platelet dynamics and provide a detailed account of the new electronic properties of these combined systems.

Cruz Silva, Eduardo [ORNL; Terrones Maldonado, Humberto [ORNL; Terrones Maldonado, Mauricio [ORNL; Jia, Xiaoting [Massachusetts Institute of Technology (MIT); Sumpter, Bobby G [ORNL; Dresselhaus, M [Massachusetts Institute of Technology (MIT); Meunier, V. [Rensselaer Polytechnic Institute (RPI)

2013-01-01T23:59:59.000Z

34

Adiabatic Dynamics of Edge Waves in Photonic Graphene  

E-Print Network [OSTI]

The propagation of localized edge modes in photonic honeycomb lattices, formed from an array of adiabatically varying periodic helical waveguides, is considered. Asymptotic analysis leads to an explicit description of the underlying dynamics. Depending on parameters, edge states can exist over an entire period or only part of a period; in the latter case an edge mode can effectively disintegrate and scatter into the bulk. In the presence of nonlinearity, a `time'-dependent one-dimensional nonlinear Schr\\"odinger (NLS) equation describes the envelope dynamics of edge modes. When the average of the `time varying' coefficients yields a focusing NLS equation, soliton propagation is exhibited. For both linear and nonlinear systems, certain long lived traveling modes with minimal backscattering are found; they exhibit properties of topologically protected states.

Ablowitz, M J; Ma, Y -P

2014-01-01T23:59:59.000Z

35

lead-isotope age  

Science Journals Connector (OSTI)

lead-isotope age, lead-lead age [An age in years calculated from the ratio of lead-207 to lead-206, a by-product of the uranium-thorium-lead age method] ? Blei-Isotopen-Alter n

2014-08-01T23:59:59.000Z

36

Anomalous radial transport in tokamak edge plasma  

E-Print Network [OSTI]

Transport in tokamak plasma . . . . . . . . . . . . . . .Numerical simulations of tokamak plasma . . . . . . . . .of blobs in tokamak edge plasmas . . . . . . . . . . . . . .

Bodi, Vasudeva Raghavendra Kowsik

2010-01-01T23:59:59.000Z

37

Clean Edge | Open Energy Information  

Open Energy Info (EERE)

Edge Edge Jump to: navigation, search Name Clean Edge Address 789 28th Avenue Place San Francisco, California Zip 94121 Sector Services Product Consulting firm Website http://www.cleanedge.com/ Coordinates 37.774531°, -122.487837° 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":37.774531,"lon":-122.487837,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

38

On the cutting edge of biomedical engineering, IBBME is a unique, multidisciplinary  

E-Print Network [OSTI]

On the cutting edge of biomedical engineering, IBBME is a unique, multidisciplinary graduate solutions to the world's most pressing healthcare challenges. The leading biomedical engineering centre in Canada, the Institute of Biomaterials & Biomedical Engineering (IBBME) is an interdisciplinary graduate

Prodiæ, Aleksandar

39

Magnetic Edge States in Graphene  

E-Print Network [OSTI]

Magnetic confinement in graphene has been of recent and growing interest because its potential applications in nanotechnology. In particular, the observation of the so called magnetic edge states in graphene has opened the possibility to deepen into the generation of spin currents and its applications in spintronics. We study the magnetic edge states of quasi-particles arising in graphene monolayers due to an inhomogeneous magnetic field of a magnetic barrier in the formalism of the two-dimensional massless Dirac equation. We also show how the solutions of such states in each of both triangular sublattices of the graphene are related through a supersymmetric transformation in the quantum mechanical sense.

Gabriela Murguia

2010-08-29T23:59:59.000Z

40

EDGE  

Energy Science and Technology Software Center (OSTI)

002099IBMPC00 MM-Estimator and Adjusted Super Smoother based Simultaneous Prediction Confedenc http://nature.berkeley.edu/vulpelab/loguinov/

Note: This page contains sample records for the topic "worn leading edge" 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

On Edge Szeged Index of Bridge Graphs  

Science Journals Connector (OSTI)

Corollary 2. Let H be any graph with fixed vertex $$ v $$ .... Then the edge Szeged index of the bridge

Fuqin Zhan; Youfu Qiao

2013-01-01T23:59:59.000Z

42

Drinking Water Problems: Lead  

E-Print Network [OSTI]

Lead in drinking water can damage the brain, kidneys, nervous system and red blood cells. This publication explains how lead can enter drinking water, how to have your water tested, and how to eliminate lead from drinking water....

Dozier, Monty; McFarland, Mark L.

2004-02-20T23:59:59.000Z

43

Trailing edge noise mitigation investigation for wind turbine blades  

Science Journals Connector (OSTI)

Wind turbines offer one of the most mature technologies for providing large scale renewable energy to society in an economically viable way. Although not on par with the price of conventional energy sources yet the cost of energy has been steadily decreasing as the technology continues to develop. Unfortunately like with all energy sources there are some problems with this form of generation. Among these sound emissions from wind turbines are one of the problems people who live close to the installed machines may be exposed to. Past studies show that these noise emissions are dominated by aeroacousticnoise and of the many mechanisms that lead to aeroacousticnoise the interaction between the unsteady flow and the trailing edge seems to constitute the largest portion of the overall sound spectrum. Modifications to the trailing edge geometry will change how the fluid interacts with the trailing edge and can be used to change the resulting noise emission. This study will investigate the effect passive trailing edge devices have on the overall noise emission from a wind turbine in an attempt to reduce the aeroacousticnoise being generated by the turbine.

Michael J. Asheim; Dave Munoz; Patrick Moriarty

2012-01-01T23:59:59.000Z

44

Getting the Lead Out  

DOE R&D Accomplishments [OSTI]

Discarded electronics no longer pose an environmental hazard from lead solder thanks to a lead-free alternative developed at the Ames Laboratory.

Gibson, Kerry

2011-04-08T23:59:59.000Z

45

The Zak phase and the existence of edge states in graphene  

E-Print Network [OSTI]

We develop a method to predict the existence of edge states in graphene ribbons for a large class of boundaries. This approach is based on the bulk-edge correspondence between the quantized value of the Zak phase Z(k), which is a Berry phase across an appropriately chosen one-dimensional Brillouin zone, and the existence of a localized state of momentum k at the boundary of the ribbon. This bulk-edge correspondence is rigorously demonstrated for a one dimensional toy model as well as for graphene ribbons with zigzag edges. The range of k for which edge states exist in a graphene ribbon is then calculated for arbitrary orientations of the edges. Finally, we show that the introduction of an anisotropy leads to a topological transition in terms of the Zak phase, which modifies the localization properties at the edges. Our approach gives a new geometrical understanding of edge states, it con?firms and generalizes the results of several previous works.

P. Delplace; D. Ullmo; G. Montambaux

2011-09-21T23:59:59.000Z

46

Building Energy Software Tools Directory: Maintenance Edge  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Maintenance Edge Maintenance Edge Maintenance Edge logo Maintenance Edge is a suite of online Software as a Service (SaaS) facility management tools that gives control and management over buildings without a capital investment. Maintenance Edge enables you to combine work order, planned maintenance, work order wireless, and critical alarms with the option of adding inventory. Fully implemented, Maintenance Edge will cut labor time, increase energy efficiencies, save on capital expenditures, and save on budget and management time. Features include: easy/user-friendly work order requesting, unlimited users, seven different user roles (limits data users can see), no capital or hardware costs required, access to data anywhere anytime, easy-to-click reporting on all the data in your system,

47

Nuclear Star Clusters in Edge-on Galaxies  

E-Print Network [OSTI]

From observations of edge-on, late-type galaxies, we present morphological evidence that some nuclear star clusters have experienced in situ star formation. We find three nuclear clusters that, viewed from the edge-on perspective, have both a compact disk-like component and a spheroidal component. In each cluster, the disk components are closely aligned with the major axis of the host galaxy and have bluer colors than the spheroidal components. We spectroscopically verify that one of the observed multiple component clusters has multiple generations of stars. These observations lead us to suggest a formation mechanism for nuclear star clusters, in which stars episodically form in compact nuclear disks, and then lose angular momentum, eventually forming an older spheroid.

Anil C. Seth; Julianne J. Dalcanton; Paul W. Hodge; Victor P. Debattista

2006-06-02T23:59:59.000Z

48

Softening of edges of solids by surface tension  

E-Print Network [OSTI]

Surface tension tends to minimize the area of interfaces between pieces of matter in different thermodynamic phases, be they in the solid or the liquid state. This can be relevant for the macroscopic shape of very soft solids, and lead to a roughening of initially sharp edges. We calculate this effect for a neo-Hookean elastic solid, with assumptions corresponding to actual experiments, namely the case where an initially sharp edge is rounded by the effect of surface tension felt when the fluid surrounding the soft solid (and so surface tension) is changed at the solid/liquid boundary. We consider two opposite limits where the analysis can be carried to the end, the one of a shallow angle and the one of a very sharp angle. Both cases yield a discontinuity of curvature in the state with surface tension although the initial state had a discontinuous slope.

Serge Mora; Yves Pomeau

2014-08-10T23:59:59.000Z

49

Distributed algorithms for edge dominating sets  

E-Print Network [OSTI]

Distributed algorithms for edge dominating sets Jukka Suomela Helsinki Institute for Information problem · Simple 2-approximation algorithm: find any maximal matching 5 #12;Edge dominating sets · NP dominating sets · using deterministic distributed algorithms, in the port-numbering model · But why would we

Suomela, Jukka

50

Palaeoclimate Coordinating Lead Authors  

E-Print Network [OSTI]

6 Palaeoclimate Coordinating Lead Authors: Eystein Jansen (Norway), Jonathan Overpeck (USA) Lead (UK) This chapter should be cited as: Jansen, E., J. Overpeck, K.R. Briffa, J.-C. Duplessy, F. Joos, V

51

A mechanism for magnetic field stochastization and energy release during an edge pedestal collapse  

E-Print Network [OSTI]

On the basis of three-dimensional nonlinear magnetohydrodynamic simulations, we propose a new dynamical process leading to the stochastization of magnetic fields during an edge pedestal collapse. Primary tearing modes are shown to grow by extracting kinetic energy of unstable ballooning modes, eventually leading to the island overlap. Secondary tearing modes, which are generated through a coherent nonlinear interaction between adjacent ballooning modes, play a key role in this process, mediating the energy transfer between primary ballooning and tearing modes. Explicit calculations of the parallel energy loss through the stochastic field lines show that it can be a likely dominant energy loss mechanism during an edge pedestal collapse.

Rhee, Tongnyeol; Jhang, Hogun; Park, Gun Young; Singh, Raghvendra

2014-01-01T23:59:59.000Z

52

Lead and Lead-210 in Rainwater  

Science Journals Connector (OSTI)

... residence time of the lead-210 can be estimated from the ratio of its specific activity to that of one of its decay products, bismuth-210 or polonium-21058, this ... rainwater. The samples, of between 1 and 6 L, were filtered through a fritted glass filter before analysis. Analyses of both portions of the sample showed that less than ...

G. L. TER HAAR; R. B. HOLTZMAN; H. F. LUCAS

1967-10-28T23:59:59.000Z

53

Reducing disorder in graphene nanoribbons by chemical edge modification  

SciTech Connect (OSTI)

We present electronic transport measurements on etched graphene nanoribbons on silicon dioxide before and after a short hydrofluoric acid (HF) treatment. We report on changes in the transport properties, in particular, in terms of a decreasing transport gap and a reduced doping level after HF dipping. Interestingly, the effective energy gap is nearly unaffected by the HF treatment. Additional measurements on a graphene nanoribbon with lateral graphene gates support strong indications that the HF significantly modifies the edges of the investigated nanoribbons leading to a significantly reduced disorder potential in these graphene nanostructures.

Dauber, J.; Terrs, B.; Volk, C.; Stampfer, C. [JARA-FIT and II. Institute of Physics, RWTH Aachen University, 52074 Aachen (Germany); Peter Grnberg Institute (PGI-8/9), Forschungszentrum Jlich, 52425 Jlich (Germany); Trellenkamp, S. [Peter Grnberg Institute (PGI-8/9), Forschungszentrum Jlich, 52425 Jlich (Germany)

2014-02-24T23:59:59.000Z

54

Application of X-ray K-edge densitometry in D and D operations  

SciTech Connect (OSTI)

K-edge densitometry is a nondestructive assay technique which provides accurate measurement of heavy metal contamination in pipes, containers, and other items encountered in D and D operations. A prototype mobile K-edge instrument has been built and demonstrated in several applications. Results from measurements of uranium in pipes and spent reactor fuel plates, and quantification of mercury and lead in waste drums are presented. In this report the authors briefly describe the theory behind K-edge densitometry. They follow that with a description of the prototype system they have developed, and a presentation of results from demonstrations of this system. They conclude with a discussion of the potential for application of K-edge analysis in D and D operations.

Jensen, T.; Aljundi, T.; Gray, J.N. [Ames Lab., IA (United States)]|[Iowa State Univ., Ames, IA (United States). Center for NDE

1998-12-31T23:59:59.000Z

55

Lead Sorption onto Ferrihydrite. 1. A Macroscopic and Spectroscopic  

E-Print Network [OSTI]

Lead Sorption onto Ferrihydrite. 1. A Macroscopic and Spectroscopic Assessment P A R A S T R I V E complemented with XAS analyses to elucidate the mechanisms controlling Pb(II) sorption onto ferrihydrite, not retaining their primary hydration shell upon sorption. At higher pH values (pH g5.0), edge- sharing

Sparks, Donald L.

56

Leading neutron spectra  

E-Print Network [OSTI]

It is shown that the observation of the spectra of leading neutrons from proton beams can be a good probe of absorptive and migration effects. We quantify how these effects modify the Reggeized pion-exchange description of the measurements of leading neutrons at HERA. We are able to obtain a satisfactory description of all the features of these data. We also briefly discuss the corresponding data for leading baryons produced in hadron-hadron collisions.

A. B. Kaidalov; V. A. Khoze; A. D. Martin; M. G. Ryskin

2006-02-23T23:59:59.000Z

57

Summary World Biofuels Energy Data (from World on the Edge) | OpenEI  

Open Energy Info (EERE)

Biofuels Energy Data (from World on the Edge) Biofuels Energy Data (from World on the Edge) Dataset Summary Description This dataset presents summary information related to world biofuels production. It is part of a supporting dataset for the book World On the Edge: How to Prevent Environmental and Economic Collapse by Lester R. Brown, available from the Earth Policy Institute. This biofuels dataset includes the following ethanol production data: World (1975 - 2010); ten leading countries in the world (2010); U.S. (1978 - 2010); Brazil (1975 - 2010); China (2002 - 2010); E.U. (1992 - 2010), as well as Corn production and use for ethanol in the U.S. (1980 - 2010). Also included is biodiesel production data for: World (1991 - 2010); five leading countries (2010); U.S. (2000 - 2010); and the E.U. (2000 - 2010).

58

Edge Equilibrium Code (EEC) For Tokamaks  

SciTech Connect (OSTI)

The edge equilibrium code (EEC) described in this paper is developed for simulations of the near edge plasma using the finite element method. It solves the Grad-Shafranov equation in toroidal coordinate and uses adaptive grids aligned with magnetic field lines. Hermite finite elements are chosen for the numerical scheme. A fast Newton scheme which is the same as implemented in the equilibrium and stability code (ESC) is applied here to adjust the grids

Li, Xujling

2014-02-24T23:59:59.000Z

59

Journal Article: Stability of edge states in strained graphene...  

Office of Scientific and Technical Information (OSTI)

Publisher's Accepted Manuscript: Stability of edge states in strained graphene Citation Details Title: Stability of edge states in strained graphene Authors: Ghaemi, Pouyan;...

60

Modeling of hard part machining: effect of insert edge preparation in CBN cutting tools  

E-Print Network [OSTI]

discharge machining (EDM) processes in many applications. This approach also reduces the leadModeling of hard part machining: effect of insert edge preparation in CBN cutting tools Tugrul O February 2003 Abstract High speed machining of hardened steels for manufacturing dies and molds offers

Ozel, Tugrul

Note: This page contains sample records for the topic "worn leading edge" 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

Finding and Recovering SHGC Objects in an Edge Image  

Science Journals Connector (OSTI)

A set of modules to extract partial descriptions of SHGC objects in an edge image is presented. It consists of modules to find end edges, to find meridian edges, to find cross-section edges, and to recover 3D shapes. The first goal of the system is to extract geometrical edges derived from an SHGC object. From an input edge image, pairs of end edges are detected first by verifying strong geometrical constraints for the ends of an SHGC. Then, meridian edges are detected by using the constraint for tangent intersections and the ones related to the end edges. The second goal is to recover 3D information of the object. The axis of SHGC and the axes of skewed symmetry in cross-section edges are detected. Then, original cross section and the sweeping rule are recovered by utilizing these three orthogonal axes. Extracted geometrical edges and 3D information from real images are shown.

H. Sato; T.O. Binford

1993-01-01T23:59:59.000Z

62

Free-energy profiles along reduction pathways of MoS2 M-edge and S-edge by dihydrogen: a first-principles study  

E-Print Network [OSTI]

We present the results of DFT calculations of free energy profiles along the reaction pathways starting from 50% coverage of MoS2 M-edge and 100% coverage of S-edge by sulfur, and leading to 37% coverage, i.e. creation of anionic vacancies, upon reduction by dihydrogen and production of H2S. Significant entropic and enthalpic corrections to electronic energies are deduced from the sets of normal modes vibration frequencies computed for all stationary and transition states. On that basis, we revisit and discuss the surface phase diagrams for M- and S- edges as a function of temperature, H2 partial pressure and H2S/H2 molar ratio, with respect to ranges of conditions relevant to industrial hydrotreating operations. We show that in such conditions, anionic vacancies on the M-edge, and surface SH groups on the M- and S- edges, may coexist at equilibrium. Moderate activation barriers connect stationary states along all paths explored.

Prodhomme, Pierre-Yves; Toulhoat, Herv; 10.1016/j.jcat.2011.03.017

2011-01-01T23:59:59.000Z

63

Leading-Edge Trends and Concepts MODERATOR: Mark Berndt, Senior Freight Systems Planner, Wilbur Smith Associates  

E-Print Network [OSTI]

Real Estate. Update on Federal Initiatives and Legislation Leo Penne, Program Director for Intermodal Work for Communities: Global Freight Villages Roberta Weisbrod, Ph.D., Partnership for Sustainable

Minnesota, University of

64

Leading Edge Cell 132, January 25, 2008 2008 Elsevier Inc. 185  

E-Print Network [OSTI]

the sequences of genes between different organisms. Previ- ously, animal relationships had to be deduced-Devo (described in books by Carroll et al., 2001; Gould, 2002; Kirschner and Gerhart, 2005; Carroll, 2005 Hughes Medical Institute and Department of Biological Chemistry, University of California, Los Angeles

De Robertis, Eddy M.

65

Low Reynolds Number Flow Dynamics of a Thin Airfoil with an Actuated Leading Edge  

E-Print Network [OSTI]

, and flow-induced by inline oscillation of a cylinder, as well as flow over a plunging SD7003 airfoil at two by sinusoidally oscillating around the hinge over a range of reduced frequencies (k=0.57-11.4) and actuation a variety of applications ranging from newly emerging micro air vehicle (MAV) development to hydrofoils

Apte, Sourabh V.

66

Leading edge vortex detection using bio-inspired on-body pressure sensing  

E-Print Network [OSTI]

The increasing global demand for energy has placed emphasis on the development of innovative renewable energy sources. Ocean energy technologies, while currently underutilized worldwide, promise to emerge as an important ...

Dusek, Jeff Ernest

2011-01-01T23:59:59.000Z

67

An experimental investigation of leading edge vortical flow about a delta wing during wing rock  

E-Print Network [OSTI]

tunnel and water tunnel tests. The hysteresis in the C, versus y, during water tunnel testing, traveled in the opposite direction of the wind tunnel results. Visualization of the water tunnel vortical flowfields provided quantified right and left vortex... locations at specific roll angles during wing rock. The contribution to the rolling moment based on these vortex positions was analyzed. The results show a decrease in rolling moment before reaching the maximum roll amplitude and an increase in rolling...

Nelson, Michael Denis

2012-06-07T23:59:59.000Z

68

Leading Edge Cell 123, December 29, 2005 2005 Elsevier Inc. 1187  

E-Print Network [OSTI]

an opportunity for regulation of transcription initiation through the control of nucleosome stability for transcriptional initiation, downstream nucleo- some occupancy and stability must be maintained at a level reassembled behind the transcription bubble as the polymerase passes (Schwabish and Struhl, 2004; Svejstrup

Lieb, Jason

69

Site Lead TQP Standard  

Broader source: Energy.gov (indexed) [DOE]

Qualification Standard for the Qualification Standard for the Office of Safety and Emergency Management Evaluations Site Lead Program May 2011 Office of Enforcement and Oversight Office of Health, Safety and Security U.S. Department of Energy 1 Qualification Standard for the Office of Safety and Emergency Management Evaluations Site Lead Program A Site Lead is an individual, normally at a senior General Schedule (GS) level or Excepted Service, who is assigned the responsibility to assess and evaluate management systems, safety and health programs, and technical activities associated with U.S. Department of Energy (DOE) nuclear and non-nuclear facilities. Typically, a Site Lead has previously qualified as a Nuclear Safety Specialist or a Senior Technical Safety Manager. For exceptionally qualified individuals,

70

Electrical control of flying spin precession in chiral 1D edge states  

SciTech Connect (OSTI)

Electrical control and detection of spin precession are experimentally demonstrated by using spin-resolved edge states in the integer quantum Hall regime. Spin precession is triggered at a corner of a biased metal gate, where electron orbital motion makes a sharp turn leading to a nonadiabatic change in the effective magnetic field via spin-orbit interaction. The phase of precession is controlled by the group velocity of edge-state electrons tuned by gate bias voltage: Spin-FET-like coherent control of spin precession is thus realized by all-electrical means.

Nakajima, Takashi; Komiyama, Susumu [Department of Basic Science, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902 (Japan); Lin, Kuan-Ting [Department of Physics, National Tsing Hua University, Hsinchu, Taiwan (China)

2013-12-04T23:59:59.000Z

71

Emerging Edge Capital EEC | Open Energy Information  

Open Energy Info (EERE)

Edge Capital EEC Edge Capital EEC Jump to: navigation, search Name Emerging Edge Capital (EEC) Place London, United Kingdom Zip SW1Y 4RS Sector Renewable Energy Product London-based company which sources and develops projects in renewable energy and other strategic sectors in emerging markets. Coordinates 51.506325°, -0.127144° 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":51.506325,"lon":-0.127144,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

72

Clean Edge Inc | Open Energy Information  

Open Energy Info (EERE)

Clean Edge Inc Clean Edge Inc Name Clean Edge Inc Place Portland, Oregon Zip 97213 Region Pacific Northwest Area Coordinates 45.5352835°, -122.6037536° 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":45.5352835,"lon":-122.6037536,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

73

EDGE Energy LLC | Open Energy Information  

Open Energy Info (EERE)

EDGE Energy LLC EDGE Energy LLC Jump to: navigation, search Name EDGE Energy LLC Place Phoenix, Arizona Zip 85018 Sector Solar Product Arizona-based solar developer focused on building commercial and utility-scale projects throughout the American Southwest. Coordinates 33.44826°, -112.075774° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.44826,"lon":-112.075774,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

74

Atomic Level Spatial Variations of Energy States along Graphene Edges  

Science Journals Connector (OSTI)

Atomic Level Spatial Variations of Energy States along Graphene Edges ... The local atomic bonding of carbon atoms around the edge of graphene is examined by aberration-corrected scanning transmission electron microscopy (STEM) combined with electron energy loss spectroscopy (EELS). ... We show that energy states of graphene edges vary across individual atoms along the edge according to their specific CC bonding, as well as perpendicular to the edge. ...

Jamie H. Warner; Yung-Chang Lin; Kuang He; Masanori Koshino; Kazu Suenaga

2014-10-23T23:59:59.000Z

75

Grant Reference Lead / Sole  

E-Print Network [OSTI]

Rank Overall Score Grant Reference Lead / Sole Grant Grant Holder Research Organisation Project sediment-concentration and velocity data for submarine turbidity currents Standard Grant DEC12 1 9 NE-concentration and velocity data for submarine turbidity currents Standard Grant DEC12 2 8 NE/K015184/1 Y Alistair Pike

76

Accelerators: powering cutting-edge research  

E-Print Network [OSTI]

Accelerators: powering cutting-edge research #12;What is a particle accelerator? Booster ourselves. Particle accelerators are our attempt to turn back the clock and see into the early stages of the Universe. They accelerate everyday charged particles (electrons or protons) to close to the speed of light

Crowther, Paul

77

Plasma Edge Cooling during rf Heating  

Science Journals Connector (OSTI)

A new approach to prevent the influx of high-Z impurities into the core of a tokamak discharge by using rf power to modify the edge plasma temperature profile is discussed. This concept is based on spectroscopic measurements on PLT (Princeton Large Torus) during ohmic heating and ATC (Adiabatic Toroidal Compressor) during rf heating.

S. Suckewer and R. J. Hawryluk

1978-06-19T23:59:59.000Z

78

Peeling-off of the external kink modes at tokamak plasma edge  

E-Print Network [OSTI]

It is pointed that there is a current jump between the edge plasma inside the last closed magnetic surface and the scrape-off layer and the current jump can lead the external kink modes to convert to the tearing modes, due to the current interchange effects [L. J. Zheng and M. Furukawa, Phys. Plasmas 17, 052508 (2010)]. The magnetic reconnection in the presence of tearing modes subsequently causes the tokamak edge plasma to be peeled off to link to the diverters. In particular, the peeling or peeling-ballooning modes can become the "peeling-off" modes in this sense. This phenomenon indicates that the tokamak edge confinement can be worse than the expectation based on the conventional kink mode picture.

Zheng, L J

2014-01-01T23:59:59.000Z

79

Temperature Difference Leads to Magnetism | Physical Review Focus Previous Story / Volume 28 archive  

E-Print Network [OSTI]

Temperature Difference Leads to Magnetism | Physical Review Focus Previous Story / Volume 28 Leads to Magnetism J. Wu/Univ. of California, Berkeley Heat field. Heating the right edge of an n a magnetic field pointing out of the screen, according to computer simulations. Computer simulations suggest

Wu, Junqiao

80

Edge control in CNC polishing, paper 2: simulation and validation of tool influence functions on edges  

Science Journals Connector (OSTI)

Edge mis-figure is regarded as one of the most difficult technical issues for manufacturing the segments of extremely large telescopes, which can dominate key aspects of performance. A...

Li, Hongyu; Walker, David; Yu, Guoyu; Sayle, Andrew; Messelink, Wilhelmus; Evans, Rob; Beaucamp, Anthony

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "worn leading edge" 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

Green's function asymptotics near the internal edges of spectra of periodic elliptic operators. Spectral edge case  

E-Print Network [OSTI]

Precise asymptotics known for the Green's function of the Laplace operator have found their analogs for periodic elliptic operators of the second order at and below the bottom of the spectrum. Due to the band-gap structure of the spectra of such operators, the question arises whether similar results can be obtained near or at the edges of spectral gaps. As the result of this work shows, this is possible at a spectral edge in dimensions d>2.

Peter Kuchment; Andrew Raich

2011-10-02T23:59:59.000Z

82

Influence of the Edge Plasma Profile and Parameters on the Coupling of an ICRH Antenna. Application to ITER  

SciTech Connect (OSTI)

The coupling to the fast wave of an ICRH antenna is principally determined by its distance to an optimum plasma density correlated to the cutoff one and by the density gradient between this optimum density and the bulk plasma. This explains the differences in coupling for the various heating and current drive phasings as predicted for different plasma edge profiles considered for ITER. For a given electron density edge profile the ion mix, the steady magnetic field and the frequency have also a significant effect on the coupling performances. These quantities affect the coupling mainly by influencing the position of the optimum density in the profile. A marked perturbation of the coupling leading to a large edge power deposition can occur when the Alfven resonance lies in the edge profile. The results are applied to different ICRF scenarios considered for ITER at full and half toroidal field.

Messiaen, A.; Koch, R.; Weynants, R. [LPP-ERM/KMS, EURATOM-Belgian State Association, Trilateral Euregio Cluster, Brussels (Belgium)

2011-12-23T23:59:59.000Z

83

Observation of propagating edge spin waves modes  

SciTech Connect (OSTI)

Broadband magnetization response of equilateral triangular 1000 nm Permalloy dots has been studied under an in-plane magnetic field, applied parallel (buckle state), and perpendicular (Y state) to the triangles base. Micromagnetic simulations identify edge spin waves (E-SWs) in the buckle state as SWs propagating along the two adjacent edges. These quasi one-dimensional spin waves emitted by the vertex magnetic charges gradually transform from propagating to standing due to interference and are weakly affected by dipolar interdot interaction and variation of the aspect ratio. Spin waves in the Y state have a two dimensional character. These findings open perspectives for implementation of the E-SWs in magnonic crystals and thin films.

Lara, A.; Aliev, F. G., E-mail: farkhad.aliev@uam.es [Dpto. Fsica de la Materia Condensada C-III, Instituto Nicolas Cabrera (INC) and Condensed Matter Physics Institute (IFIMAC), Universidad Autnoma de Madrid, Madrid 28049 (Spain); Metlushko, V. [Department of Electrical and Computer Engineering, University of Illinois, Chicago, Illinois 60607 (United States)

2013-12-07T23:59:59.000Z

84

Permanent magnet edge-field quadrupole  

DOE Patents [OSTI]

Planar permanent magnet edge-field quadrupoles for use in particle accelerating machines and in insertion devices designed to generate spontaneous or coherent radiation from moving charged particles are disclosed. The invention comprises four magnetized rectangular pieces of permanent magnet material with substantially similar dimensions arranged into two planar arrays situated to generate a field with a substantially dominant quadrupole component in regions close to the device axis. 10 figs.

Tatchyn, R.O.

1997-01-21T23:59:59.000Z

85

Get the Lead Out! | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Lead Out Get the Lead Out Bioremediation research vies to eliminate subsurface heavy metal hazard Heavy metal contamination of subsurface soils, groundwater and surface water is...

86

Environmental lead: insidious health problem  

Science Journals Connector (OSTI)

Environmental lead: insidious health problem ... Several federal programs aim to reduce human exposure to lead, but which source is most dangerous is subject of growing controversy ...

LOIS R. EMBER; C&EN; WASHINGTON

1980-06-23T23:59:59.000Z

87

Edge-based correlation image registration for multispectral imaging  

DOE Patents [OSTI]

Registration information for images of a common target obtained from a plurality of different spectral bands can be obtained by combining edge detection and phase correlation. The images are edge-filtered, and pairs of the edge-filtered images are then phase correlated to produce phase correlation images. The registration information can be determined based on these phase correlation images.

Nandy, Prabal (Albuquerque, NM)

2009-11-17T23:59:59.000Z

88

Edge and Impurity Effects on Quantization of Hall Currents  

E-Print Network [OSTI]

's for- mula provided the Fermi energy lies in such a gap1 . Let us recall that the bulk conductance has in a strip along the edge (decaying perturbations far from the edge are also allowed). This enables us of the edge theory for the quantum Hall effect have not been given yet a rigourous mathemati- cal status

89

Bulk-edge correspondence in (2?+?1)-dimensional Abelian topological phases  

Science Journals Connector (OSTI)

The same bulk two-dimensional topological phase can have multiple distinct, fully chiral edge phases. We show that this can occur in the integer quantum Hall states at ?=8 and 12, with experimentally testable consequences. We show that this can occur in Abelian fractional quantum Hall states as well, with the simplest examples being at ?=87,1211,815,165. We give a general criterion for the existence of multiple distinct chiral edge phases for the same bulk phase and discuss experimental consequences. Edge phases correspond to lattices while bulk phases correspond to genera of lattices. Since there are typically multiple lattices in a genus, the bulk-edge correspondence is typically one-to-many; there are usually many stable fully chiral edge phases corresponding to the same bulk. We explain these correspondences using the theory of integral quadratic forms. We show that fermionic systems can have edge phases with only bosonic low-energy excitations and discuss a fermionic generalization of the relation between bulk topological spins and the central charge. The latter follows from our demonstration that every fermionic topological phase can be represented as a bosonic topological phase, together with some number of filled Landau levels. Our analysis shows that every Abelian topological phase can be decomposed into a tensor product of theories associated with prime numbers p in which every quasiparticle has a topological spin that is a pnth root of unity for some n. It also leads to a simple demonstration that all Abelian topological phases can be represented by U(1)N Chern-Simons theory parameterized by a K matrix.

Jennifer Cano; Meng Cheng; Michael Mulligan; Chetan Nayak; Eugeniu Plamadeala; Jon Yard

2014-03-14T23:59:59.000Z

90

INVESTIGATION OF WASTE GLASS POURING PROCESS OVER A KNIFE EDGE  

SciTech Connect (OSTI)

Vitrification is the process of capturing radioactive waste in glass. The Savannah River Site's (SRS) Defense Waste Processing Facility (DWPF) is one of the facilities using the vitrification technology to treat and immobilize radioactive waste. The objective of the project is to investigate the pouring behavior of molten glass over a pour spout knife edge. Experiments are run using simulant glass containing the same chemical formulation as the radioactive sludge glass, but without radioactive contaminants. The purpose of these tests is to obtain actual glass data that, when combined with previous cold data from other fluids, will provide an overall understanding of the physics of liquids flowing over a pour spout and knife edge, A specific objective is to verify computational fluid dynamics (CFD) models with a range of liquid data with particular emphasis on glass so as to provide confidence in use of these CFD models for designing a new improved pour spout for the DWPF melter. The work to be performed at FIU-HCET includes assembling the melting and pouring system that mimics the DWPF melter and determining the key parameters that may influence wicking. Information from the FIU-HCET melter tests will lead to better operating guidelines for the DWPF melter so as to avoid wicking. During FY98, a bench-scale melter complete with pour spout and a knife edge was designed and assembled at FIU-HCET. Initially, the system was tested with glycerine. Subsequently, glass provided by SRS was used for experimentation. Flow visualization tests were performed with the melter in FY98 to investigate the pouring behavior of molten glass over a pour spout model simulating a DWPF pour spout of the original design. Simulant glass containing the same chemical formulation as sludge glass but without radioactive contaminants was used in the tests. All the tasks and milestones mentioned in the PTP for the project were accomplished. The project completed its second year, and this document reports the tasks and milestones that were accomplished during the 1998 fiscal year.

M.A. Ebadian, Ph.D.

1999-01-01T23:59:59.000Z

91

K-Edge Subtraction Angiography with Synchrotron X-Rays  

SciTech Connect (OSTI)

The purpose of this project was to utilize dual energy, monochromatic X-rays produced from synchrotrons radiation in order to obtain noninvasive medical imaging. The application of synchrotrons radiation to medical imaging is based on the principle of iodine dichromography, first described by Bertil Jacobson of the Karolinska Institute in 1953. Medical imaging using synchrotrons radiation and K-edge dichromography was pioneered at Stanford University under the leadership of Dr. Ed Rubenstein, and the late Nobel Laureate in Physics, Dr. Robert Hofstadter. With progressive refinements in hardware, clinical-quality images were obtained of human coronary arteries utilizing peripheral injections of iodinated contrast agent. These images even now are far superior to those being presented by investigators using MRI as an imaging tool for coronary arteries. However, new supplies and instruments in the cardiac catheterization laboratory have served to transform coronary angiography into an outpatient procedure, with relatively little morbidity. We extended the principles learned with coronary angiography to noninvasive imaging of the human bronchial tree. For these images, we utilized xenon as the contrast agent, as it has a K-edge very similar to that of iodine. In this case, there is no true competing diagnostic test, and pulmonary neoplasm is an enormous public health concern. In early experiments, we demonstrated remarkably clear images of the human bronchial tree. These images have been shown internationally; however, funding difficulties primarily with the Department of Energy have not allowed for progression of this promising avenue of research. One potential criticism of the project is that in order to obtain these images, we utilized national laboratories. Some have questioned whether this would lead to a practical imaging modality. However, we have shown that the technology exists to allow for construction of a miniature storage ring, with a superconducting wiggler magnet, which would occupy minimal space, and would be of a cost comparable with that of a clinical cardiac catheterization laboratory. Much of the focus of this research is now shifting to Europe, where individual whom we have trained or with whom we have worked are now heading up extensive efforts in medical imaging and K-edge dichromography. This work is occurring mostly at DESY in Hamburg, and at the European Synchrotrons Research Laboratory (ESRF) in Grenoble. (B204)

Giacomini, John C.

1996-12-31T23:59:59.000Z

92

Edge Plasma Heating via Cyclotron Harmonic Interaction  

Science Journals Connector (OSTI)

Energy absorption in the edge region via cyclotron harmonic interaction during plasma heating with the ion-cyclotron range of frequencies is examined. It is shown that the electric field ripple caused by the closely spaced Faraday-shield conductors gives rise to large effective perpendicular wave numbers, resulting in strong cyclotron harmonic damping. For the parameters of the ASDEX tokamak, carbon impurity ions with Z=5 and an initial perpendicular energy of 1 eV could be accelerated to energies in excess of 1 keV in less than 10 ?s (corresponding to about 100 cyclotron orbits).

Satish Puri

1988-08-22T23:59:59.000Z

93

Slow poisoning and destruction of networks: edge proximity and its implications for biological and infrastructure networks  

E-Print Network [OSTI]

There have been many studies on malicious targeting of network nodes using degree, betweenness etc. We propose a new network metric, edge proximity, ${\\cal P}_e$, which demonstrates the importance of specific edges in a network, hitherto not captured by existing network metrics. Effects of removing edges with high ${\\cal P}_e$ might initially seem inconspicuous but is eventually shown to be very harmful for the network. When compared to existing strategies, removal of edges by ${\\cal P}_e$, leads to remarkable increase of diameter and average path length in real and random networks till the first disconnection and beyond. ${\\cal P}_e$ can be consistently used to rupture the network into two nearly equal parts, thus presenting a very potent strategy to greatly harm a network. Targeting by ${\\cal P}_e$ causes notable efficiency loss in US and European power grid. ${\\cal P}_e$ identifies proteins with essential cellular functions in protein-protein interaction networks. It pinpoints regulatory neural connections...

Banerjee, Soumya Jyoti; Roy, Soumen

2014-01-01T23:59:59.000Z

94

Microchannel Cooled Edge Cladding to Establish an Adiabatic Boundary Condition in a Slab Laser  

DOE Patents [OSTI]

The present invention provides an edge cladding for a slab laser, the edge cladding comprising a cooling channel system therein.

Albrecht, Georg F.; Beach, Raymond J.; Solarz, Richard W.

2004-05-18T23:59:59.000Z

95

Breakthrough: Lead-free Solder  

SciTech Connect (OSTI)

Ames Laboratory senior metallurgist Iver Anderson explains the importance of lead-free solder in taking hazardous lead out of the environment by eliminating it from discarded computers and electronics that wind up in landfills. Anderson led a team that developed a tin-silver-copper replacement for traditional lead-tin solder that has been adopted by more than 50 companies worldwide.

Anderson, Iver

2012-01-01T23:59:59.000Z

96

Secretaries Chu and Salazar Lead Administration Team Offering Federal  

Broader source: Energy.gov (indexed) [DOE]

Lead Administration Team Offering Lead Administration Team Offering Federal Scientific and Technological Support to BP Engineers Secretaries Chu and Salazar Lead Administration Team Offering Federal Scientific and Technological Support to BP Engineers May 12, 2010 - 12:00am Addthis HOUSTON, TX -- At the request of the President, Secretary Chu and Secretary Salazar traveled to Houston today to participate in meetings with DOE and national lab staff, industry officials and other engineers and scientists involved in finding solutions to cap the flow of oil and contain the spill. Secretary Salazar and Secretary Chu conferred at the BP Command Center in Houston with teams of federal and industry scientists and engineers who are using cutting-edge technological resources and innovative ideas to find solutions to containing the Deepwater Horizon oil spill and

97

DOE Research Grant Leads to Gas Turbine Manufacturing Improvements |  

Broader source: Energy.gov (indexed) [DOE]

Research Grant Leads to Gas Turbine Manufacturing Improvements Research Grant Leads to Gas Turbine Manufacturing Improvements DOE Research Grant Leads to Gas Turbine Manufacturing Improvements August 16, 2011 - 1:00pm Addthis Washington, DC - Research sponsored by the U.S. Department of Energy's Office of Fossil Energy (FE) has led to a new licensing agreement that will improve the performance of state-of-the-art gas turbines, resulting in cleaner, more reliable and affordable energy. The collaborative technology license agreement, penned by Mikro Systems Inc. and Siemens Energy Inc., reflects growth in U.S.-based manufacturing know-how and leadership in cutting-edge technology development and rapid implementation. Gas turbines, which are used to produce electricity for industrial or central power generation applications, consist sequentially of compressor,

98

Secretaries Chu and Salazar Lead Administration Team Offering Federal  

Broader source: Energy.gov (indexed) [DOE]

Secretaries Chu and Salazar Lead Administration Team Offering Secretaries Chu and Salazar Lead Administration Team Offering Federal Scientific and Technological Support to BP Engineers Secretaries Chu and Salazar Lead Administration Team Offering Federal Scientific and Technological Support to BP Engineers May 12, 2010 - 12:00am Addthis HOUSTON, TX -- At the request of the President, Secretary Chu and Secretary Salazar traveled to Houston today to participate in meetings with DOE and national lab staff, industry officials and other engineers and scientists involved in finding solutions to cap the flow of oil and contain the spill. Secretary Salazar and Secretary Chu conferred at the BP Command Center in Houston with teams of federal and industry scientists and engineers who are using cutting-edge technological resources and innovative

99

Theory of edge plasma in a spheromak  

Science Journals Connector (OSTI)

Properties of the edge plasma in the SSPX spheromak during the plasma formation and sustainment phases are discussed. For the breakdown and formation phase, the main emphasis is on the analysis of possible plasma contamination by impurities from the electrodes of the plasma gun (helicity injector). The issue of an azimuthally uniform breakdown initiation is also discussed. After the plasma settles down in the main vacuum chamber, one has to sustain the current between the electrodes, in order to continuously inject helicity. We discuss properties of the plasma on the field lines intersecting the electrodes. We conclude that the thermal balance of this plasma is maintained by Joule heating competing with parallel heat losses to the electrodes. The resulting plasma temperature is in the range 1530 eV. Under the expected operational conditions, the `current' velocity of the electrons is only slightly below their thermal velocity. Implications of this observation are briefly discussed.

E.B Hooper; R.H Cohen; D.D Ryutov

2000-01-01T23:59:59.000Z

100

Challenges in plasma edge fluid modelling  

Science Journals Connector (OSTI)

Plasma fluid models like B2, UEDGE or EDGE2D are the standard tools for simulation of scrape-off layer physics, both for design and experimental support. The concept of a numerical tokamak, aiming at a predictive code for ITER, triggers the need to re-assess the available tools and their necessary extensions. These additional physics issues will be summarized. The experience existing in other scientific fields with multi-scale problems and modelling should be used as a guide. Here, the coupling strategies are in particular of interest for fusion problems. As a consequence, a certain construction of integrated modelling codes is needed: depending on the specific problem, models allowing different levels of complexity will be needed. Therefore, a hierarchy of tools is necessary, which will be discussed.

R Schneider; A Runov

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "worn leading edge" 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

Decontaminating lead bricks and shielding  

SciTech Connect (OSTI)

Lead used for shielding is often surface contaminated with radioisotopes and is therefore a RCRA D008 mixed waste. The technology-based standard for treatment is macroencapsulation. However, decontaminating and recycling the clean lead is a more attractive solution. Los Alamos National Laboratory decontaminates material and equipment contaminated with radioisotopes. Decontaminating lead poses special problems because of the RCRA hazard classification and the size of the inventory, now about 50 tons and likely to grow substantially of planned decommissioning operations. Thus lead, in the form of bricks and other shield shapes, is surface contaminated with fission products. One of the best methods for contaminated lead is removing the superficial layer of contamination with an abrasive medium under pressure. For lead, a mixture of alumina with water and air at about 40 psig rapidly and effectively decontaminates the lead. The abrasive medium is sprayed onto the lead in a scaled-off area. The slurry of abrasive and particles of lead falls through a floor and is collected in a sump. A pump sends the slurry mixture back to the spray gun, creating a continuous process. The process generates small volumes of lead slurry that can be solidified and, because it passes the TCLP, is not a mixed waste. The decontaminated lead can be released for recycling.

Lussiez, G.

1994-02-01T23:59:59.000Z

102

Decontaminating lead bricks and shielding  

SciTech Connect (OSTI)

Lead used for shielding is often surface contaminated with radioisotopes and is therefore a RCRA D008 mixed waste. The technology-based standard for treatment is macroencapsulation. However, decontaminating and recycling the clean lead is a more attractive solution. Los Alamos National Laboratory decontaminates material and equipment contaminated with radioisotopes. Decontaminating lead poses special problems because of the RCRA hazard classification and the size of the inventory, now about 50 tons and likely to grow substantially because of planned decommissioning operations. This lead, in the form of bricks and other shield shapes, is surface contaminated with fission products. One of the best methods for decontaminating lead is removing the thin superficial layer of contamination with an abrasive medium trader pressure. For lead, a mixture of alumina with water and air at about 40 psig rapidly and effectively decontaminates the lead. The abrasive medium is sprayed onto the lead in a sealed-off area. The slurry of abrasive and particles of lead falls through a floor grating and is collected in a sump. A pump sends the slurry mixture back to the spray gun, creating a continuous process. The process generates small volumes of contaminated lead slurry that can be solidified and, because it passes the TCLP, is not a mixed waste. The decontaminated lead can be released for recycling.

Lussiez, G.W.

1993-05-01T23:59:59.000Z

103

Decontaminating lead bricks and shielding  

SciTech Connect (OSTI)

Lead used for shielding is often surface contaminated with radioisotopes and is therefore a RCRA D008 mixed waste. The technology-based standard for treatment is macroencapsulation. However, decontaminating and recycling the clean lead is a more attractive solution. Los Alamos National Laboratory decontaminates material and equipment contaminated with radioisotopes. Decontaminating lead poses special problems because of the RCRA hazard classification and the size of the inventory, now about 50 tons and likely to grow substantially because of planned decommissioning operations. This lead, in the form of bricks and other shield shapes, is surface contaminated with fission products. One of the best methods for decontaminating lead is removing the thin superficial layer of contamination with an abrasive medium trader pressure. For lead, a mixture of alumina with water and air at about 40 psig rapidly and effectively decontaminates the lead. The abrasive medium is sprayed onto the lead in a sealed-off area. The slurry of abrasive and particles of lead falls through a floor grating and is collected in a sump. A pump sends the slurry mixture back to the spray gun, creating a continuous process. The process generates small volumes of contaminated lead slurry that can be solidified and, because it passes the TCLP, is not a mixed waste. The decontaminated lead can be released for recycling.

Lussiez, G.W.

1993-01-01T23:59:59.000Z

104

Integral edge seals for phosphoric acid fuel cells  

DOE Patents [OSTI]

A phosphoric acid fuel cell having integral edge seals formed by an elastomer permeating an outer peripheral band contiguous with the outer peripheral edges of the cathode and anode assemblies and the matrix to form an integral edge seal which is reliable, easy to manufacture and has creep characteristics similar to the anode, cathode and matrix assemblies inboard of the seals to assure good electrical contact throughout the life of the fuel cell.

Granata, Jr., Samuel J. (South Greensburg, PA); Woodle, Boyd M. (North Huntingdon Township, Westmoreland County, PA); Dunyak, Thomas J. (Blacksburg, VA)

1992-01-01T23:59:59.000Z

105

Edge Radial Electric Field on Alcator C-Mod  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Edge Radial Electric Field on Alcator C-Mod Edge Radial Electric Field on Alcator C-Mod R. M. McDermott 1 , B. Lipschultz 1 , K. Marr 1 , I. Bespamyatnov 2 , J. W. Hughes 1 , W. Rowan 2, , D. Whyte 1 1 Plasma Science and Fusion Center, MIT, Cambridge, MA, USA 2 Fusion Research Center, University of Texas, Austin Texas, USA Edge CXRS System on Alcator C-Mod E r in L-Mode Plasmas Calculation of the Radial Electric Field C G D Edge Poloidal System:

106

High-Fidelity Simulation of Tokamak Edge Plasma Transport | Argonne...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Plasma density fluctuation from large amplitude nonlinear turbulence in the tokamak edge region, obtained from the gyrokinetic code XGC1 Plasma density fluctuation from large...

107

High-frequency filtered images of an optically thick edge  

Science Journals Connector (OSTI)

Peculiarities of high-frequency filtering (contouring) of images of symmetric thick (extended along the optical axis) edge are investigated in analytical form by the KirchhoffFresnel...

Chugui, Yu V; Sokolov, V A

1998-01-01T23:59:59.000Z

108

Marketing Edge Consulting Group and TargetGov Successful Marketing...  

Energy Savers [EERE]

Traditional Marketing * Brochures * Fact sheets * Direct mail * Public relations * Advertising * Articles 19 Marketing Edge Consulting Group and TargetGov Less Personal......

109

Electron spin magnetism of zigzag graphene nanoribbon edge states  

SciTech Connect (OSTI)

The electron spin states of zigzag graphene nanoribbon (ZGNR) edge play a pivotal role in the applications of graphene nanoribbons. However, the exact arrangements of the electron spins remain unclear to date. In this report, the electronic spin states of the ZGNR edge have been elucidated through a combination of quantum chemical investigation and previous electron spin resonance experiment observations. An alternating ? and ? spin configuration of the unpaired electrons along the ZGNR edge is established in ambient condition without any external magnetic field, and the origin of the spin magnetism of the ZGNR edge is revealed. It paves a pathway for the understanding and design of graphene based electronic and spintronic devices.

Xu, Kun, E-mail: xu83@purdue.edu; Ye, Peide D. [School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907 (United States)

2014-04-21T23:59:59.000Z

110

SolarEdge Technologies Inc | Open Energy Information  

Open Energy Info (EERE)

search Name: SolarEdge Technologies Inc Place: Hod Hasharon, Israel Zip: 45240 Sector: Solar Product: Israel-based startup developing a power control system for solar systems,...

111

Edges in CNC polishing: from mirror-segments towards semiconductors, paper 1: edges on processing the global surface  

Science Journals Connector (OSTI)

Segment-edges for extremely large telescopes are critical for observations requiring high contrast and SNR, e.g. detecting exo-planets. In parallel, industrial requirements for...

Walker, David; Yu, Guoyu; Li, Hongyu; Messelink, Wilhelmus; Evans, Rob; Beaucamp, Anthony

2012-01-01T23:59:59.000Z

112

Nonlinear Simulations of Peeling-Ballooning Modes with Anomalous Electron Viscosity and their Role in Edge Localized Mode Crashes  

SciTech Connect (OSTI)

A minimum set of equations based on the peeling-ballooning (P-B) model with nonideal physics effects (diamagnetic drift, ExB drift, resistivity, and anomalous electron viscosity) is found to simulate pedestal collapse when using the new BOUT++ simulation code, developed in part from the original fluid edge code BOUT. Nonlinear simulations of P-B modes demonstrate that the P-B modes trigger magnetic reconnection, which leads to the pedestal collapse. With the addition of a model of the anomalous electron viscosity under the assumption that the electron viscosity is comparable to the anomalous electron thermal diffusivity, it is found from simulations using a realistic high-Lundquist number that the pedestal collapse is limited to the edge region and the edge localized mode (ELM) size is about 5%-10% of the pedestal stored energy. This is consistent with many observations of large ELMs.

Xu, X. Q.; Umansky, M. V. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Dudson, B.; Wilson, H. [University of York, Heslington, York YO10 5DD (United Kingdom); Snyder, P. B. [General Atomics, San Diego, California 92186 (United States)

2010-10-22T23:59:59.000Z

113

High temperature superconductor current leads  

DOE Patents [OSTI]

An electrical lead is disclosed having one end for connection to an apparatus in a cryogenic environment and the other end for connection to an apparatus outside the cryogenic environment. The electrical lead includes a high temperature superconductor wire and an electrically conductive material distributed therein, where the conductive material is present at the one end of the lead at a concentration in the range of from 0 to about 3% by volume, and at the other end of the lead at a concentration of less than about 20% by volume. Various embodiments are shown for groups of high temperature superconductor wires and sheaths. 9 figs.

Hull, J.R.; Poeppel, R.B.

1995-06-20T23:59:59.000Z

114

Edge-Preserving Wavelet-Based Multisensor Image Fusion Approach  

E-Print Network [OSTI]

interesting potential in the fusion of images obtained from possibly different types of sensors that needEdge-Preserving Wavelet-Based Multisensor Image Fusion Approach Lahouari Ghouti, Ahmed Bouridane propose an image fusion scheme where image edges, characterized by wavelet maxima, are considered

Ghouti, Lahouari

115

Trailing Edge Noise Model Applied to Wind Turbine Airfoils  

E-Print Network [OSTI]

flows, as well as the acoustic waves, using Computational Fluid Dynamics have become affordable thanksTrailing Edge Noise Model Applied to Wind Turbine Airfoils Franck Bertagnolio Risø-R-1633(EN) Risø Bertagnolio Title: Trailing Edge Noise Model Applied to Wind Turbine Airfoils Department: Wind Energy

116

Enhanced Half-Metallicity in Edge-Oxidized Zigzag Graphene  

E-Print Network [OSTI]

Enhanced Half-Metallicity in Edge-Oxidized Zigzag Graphene Nanoribbons Oded Hod,* Vero´nica Barone theoretical study of the electronic properties and relative stabilities of edge-oxidized zigzag graphene with nanometer scale dimen- sions. Recently, a new type of graphene-based material was experimentally realized.12

Hod, Oded

117

Patch-Based Texture Edges and Segmentation , Xiaolei Huang2  

E-Print Network [OSTI]

Patch-Based Texture Edges and Segmentation Lior Wolf1 , Xiaolei Huang2 , Ian Martin1 , and Dimitris for extracting texture edges is introduced. It is based on the combination of two ideas: the patch-based approach is often referred to as "patch- based" since a fragment around each pixel is used in order to compute

Wolf, Lior

118

Edge profile measurements using Thomson scattering on the KSTAR tokamak  

SciTech Connect (OSTI)

In the KSTAR Tokamak, a Tangential Thomson Scattering (TTS) diagnostic system has been designed and installed to measure electron density and temperature profiles. In the edge system, TTS has 12 optical fiber bundles to measure the edge profiles with 1015 mm spatial resolution. These 12 optical fibers and their spatial resolution are not enough to measure the pedestal width with a high accuracy but allow observations of L-H transition or H-L transitions at the edge. For these measurements, the prototype ITER edge Thomson Nd:YAG laser system manufactured by JAEA in Japan is installed. In this paper, the KSTAR TTS system is briefly described and some TTS edge profiles are presented and compared against the KSTAR Charge Exchange Spectroscopy and other diagnostics. The future upgrade plan of the system is also discussed in this paper.

Lee, J. H., E-mail: jhleel@nfri.re.kr; Ko, W. H. [National Fusion Research Institute, Daejeon (Korea, Republic of); Department of Nuclear Fusion and Plasma Science, University of Science and Technology (UST), Daejeon (Korea, Republic of); Oh, S.; Lee, W. R.; Kim, K. P.; Lee, K. D.; Jeon, Y. M.; Yoon, S. W.; Cho, K. W. [National Fusion Research Institute, Daejeon (Korea, Republic of); Narihara, K.; Yamada, I.; Yasuhara, R. [National Institute for Fusion Science, Nagoya (Japan); Hatae, T.; Yatsuka, E.; Ono, T. [Japan Atomic Energy Agency, Naka (Japan); Hong, J. H. [Department of Physics, KAIST (Korea, Republic of)

2014-11-15T23:59:59.000Z

119

Enabling Technologies Lead: Mark Davis  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Technologies Technologies Lead: Mark Davis 3.2 Omics Platforms for Systems Biology Lead: Tim Tschaplinski 3.3 Advanced Pretreatment Configuration and Conditions Lead: Charles Wyman 3.1 Characterization of Biomass Features that Enhance Sugar Release Lead: Art Ragauskas 3.1.1 Support for Identification of the TOP40 Recalcitrant Lines (Gjersing) 3.1.2 In-Depth Cell Wall Characterization (Ragauskas) 3.2.1 Transcriptomics & Resequencing (Brown) 3.2.2 Proteomics (Hettich) 3.3.4 Demonstration of Improved Plants with CBP Organisms (Yee) 3.4 Computational Biology Lead: Ying Xu 3.3.1 Enhance Understanding of Pretreatment Fundamentals and Control Recalcitrance (Wyman) 3.3.2 Integrate, Optimize, and Understand Pretreatment with Advanced Plants (Wyman) 3.4.1 An Integrated Omics Data Analysis and

120

AN EDGE DEVICE FOR SUPPORTING INTERNET INTEGRATED SERVICES OVER SWITCHED ATM NETWORKS AN EDGE DEVICE FOR SUPPORTING INTERNET  

E-Print Network [OSTI]

parts of the Internet where the un- derlying link layer technology would be able to give good supportAN EDGE DEVICE FOR SUPPORTING INTERNET INTEGRATED SERVICES OVER SWITCHED ATM NETWORKS AN EDGE DEVICE FOR SUPPORTING INTERNET INTEGRATED SERVICES OVER SWITCHED ATM NETWORKS H. Hussmann Dresden

Note: This page contains sample records for the topic "worn leading edge" 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

Acquisition and reconstruction of brain tissue using knife-edge scanning microscopy  

E-Print Network [OSTI]

. As the sample passes under an individual photon receptor, the light intensity value is summed and passed to the next register. The final output pixel is the sum of the light intensity received by all TDI registers for a single sampled point... wide line is imaged along the leading edge of the knife. Our primary camera of choice is a DALSA CT-F3 High- Speed TDI Line Scan Camera. In order to get a high sensitivity at the speed at which we want to cut, the monochrome camera uses Time Delay...

Mayerich, David Matthew

2004-09-30T23:59:59.000Z

122

It's Elemental - The Element Lead  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Thallium Thallium Previous Element (Thallium) The Periodic Table of Elements Next Element (Bismuth) Bismuth The Element Lead [Click for Isotope Data] 82 Pb Lead 207.2 Atomic Number: 82 Atomic Weight: 207.2 Melting Point: 600.61 K (327.46°C or 621.43°F) Boiling Point: 2022 K (1749°C or 3180°F) Density: 11.342 grams per cubic centimeter Phase at Room Temperature: Solid Element Classification: Metal Period Number: 6 Group Number: 14 Group Name: none What's in a name? From the Anglo-Saxon word lead. Lead's chemical symbol comes from the Latin word for waterworks, plumbum. Say what? Lead is pronounced as LED. History and Uses: Lead has been known since ancient times. It is sometimes found free in nature, but is usually obtained from the ores galena (PbS), anglesite (PbSO4), cerussite (PbCO3) and minum (Pb3O4). Although lead makes up only

123

Vegetation's Red Edge: A Possible Spectroscopic Biosignature of Extraterrestrial Plants  

E-Print Network [OSTI]

Earth's deciduous plants have a sharp order-of-magnitude increase in leaf reflectance between approximately 700 and 750 nm wavelength. This strong reflectance of Earth's vegetation suggests that surface biosignatures with sharp spectral features might be detectable in the spectrum of scattered light from a spatially unresolved extrasolar terrestrial planet. We assess the potential of Earth's step-function-like spectroscopic feature, referred to as the "red edge", as a tool for astrobiology. We review the basic characteristics and physical origin of the red edge and summarize its use in astronomy: early spectroscopic efforts to search for vegetation on Mars and recent reports of detection of the red edge in the spectrum of Earthshine (i.e., the spatially integrated scattered light spectrum of Earth). We present Earthshine observations from Apache Point Observatory to emphasize that time variability is key to detecting weak surface biosignatures such as the vegetation red edge. We briefly discuss the evolutionary advantages of vegetation's red edge reflectance, and speculate that while extraterrestrial "light harvesting organisms" have no compelling reason to display the exact same red edge feature as terrestrial vegetation, they might have similar spectroscopic features at different wavelengths than terrestrial vegetation. This implies that future terrestrial-planet-characterizing space missions should obtain data that allow time-varying, sharp spectral features at unknown wavelengths to be identified. We caution that some mineral reflectance edges are similar in slope and strength to vegetation's red edge (albeit at different wavelengths); if an extrasolar planet reflectance edge is detected care must be taken with its interpretation.

Sara Seager; Edwin L. Turner; Justin Schafer; Eric B. Ford

2005-03-14T23:59:59.000Z

124

NATIONAL LEAD ,COMPANY OF OHIO  

Office of Legacy Management (LM)

tic.. 02-j . . NATIONAL LEAD ,COMPANY OF OHIO 2186002 I ,""ll"IAWl OF NL. Irl>"Or"ICI. INC. CINCINNATI. OHIO 45239 June 1, 1979 TRIP REPORT - VISIT M THORILIM STORAGE FACILITY OF...

125

Graphene flakes with defective edge terminations: Universal and topological aspects, and one-dimensional quantum behavior  

E-Print Network [OSTI]

Graphene flakes with defective edge terminations: Universal and topological aspects, and one graphene nanoflakes with reconstructed zigzag edges, where a succes- sion of pentagons and heptagons these spectra. The electronic spectra of trigonal graphene nanoflakes with reczag edge terminations exhibit

Yannouleas, Constantine

126

X-ray absorption spectroscopy at the Ni-K edge in Stackhousia tryonii Bailey hyperaccumulator  

E-Print Network [OSTI]

X-ray absorption spectroscopy at the NiK edge inin vivo by micro x-ray absorption spectroscopy (XAS) at theNiK edge. Both x-ray absorption near edge structure and

Kachenko, A.

2009-01-01T23:59:59.000Z

127

PPPL scientists present cutting-edge results at major physics...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

PPPL scientists present cutting-edge results at major physics meeting November 12, 2013 By: Kitta MacPherson Gallery: More than 1,500 researchers, including scientists from the...

128

Measles on the Edge: Coastal Heterogeneities and Infection Dynamics  

E-Print Network [OSTI]

, Ottar N. Bjornstad1,3,4,5 , Bryan T. Grenfell1,4,5 1 Department of Biology, The Pennsylvania State models. Citation: Bharti N, Xia Y, Bjornstad ON, Grenfell BT (2008) Measles on the Edge: Coastal

129

Theory for induced convection experiments in the tokamak edge  

E-Print Network [OSTI]

Theory for induced convection experiments in the tokamak edge P. Helander1 , D.D. Ryutov2 , and R National Laboratory, Livermore, USA By biasing alternate divertor plates in a tokamak, one can create

130

Chiral Edge Currents in a Holographic Josephson Junction  

E-Print Network [OSTI]

We discuss the Josephson effect and the appearance of dissipationless edge currents in a holographic Josephson junction configuration involving a chiral, time-reversal breaking, superconductor in 2+1 dimensions. Such a superconductor is expected to be topological, thereby supporting topologically protected gapless Majorana-Weyl edge modes. Such modes manifest themselves in chiral dissipationless edge currents, which we exhibit and investigate in the context of our construction. The physics of the Josephson current itself, though expected to be unconventional in some non-equilibrium settings, is shown to be conventional in our setup which takes place in thermal equilibrium. We comment on various ways in which the expected Majorana nature of the edge excitations, and relatedly the unconventional nature of topological Josephson junctions, can be verified in the holographic context.

Rozali, Moshe

2013-01-01T23:59:59.000Z

131

Chiral Edge Currents in a Holographic Josephson Junction  

E-Print Network [OSTI]

We discuss the Josephson effect and the appearance of dissipationless edge currents in a holographic Josephson junction configuration involving a chiral, time-reversal breaking, superconductor in 2+1 dimensions. Such a superconductor is expected to be topological, thereby supporting topologically protected gapless Majorana-Weyl edge modes. Such modes manifest themselves in chiral dissipationless edge currents, which we exhibit and investigate in the context of our construction. The physics of the Josephson current itself, though expected to be unconventional in some non-equilibrium settings, is shown to be conventional in our setup which takes place in thermal equilibrium. We comment on various ways in which the expected Majorana nature of the edge excitations, and relatedly the unconventional nature of topological Josephson junctions, can be verified in the holographic context.

Moshe Rozali; Alexandre Vincart-Emard

2013-11-28T23:59:59.000Z

132

Retail/commercial edges in the contemporary urban context  

E-Print Network [OSTI]

This thesis ascertains what morphological and functional characteristics are germane to retail edges. The work is structured around and supportive of an attitude that views social interaction as a vital and necessary ...

O'Neill, Brian Charles

1982-01-01T23:59:59.000Z

133

The edge observed : island landscape for a marine biology facility  

E-Print Network [OSTI]

This thesis explores the concept of edges through observation and design. The intent of the observation/design is to understand and to illustrate possibilities for design that will enrich the experience of the built ...

Stringer, Geraldine A

1987-01-01T23:59:59.000Z

134

Physicist John Schmidt, designer of cutting-edge fusion facilities...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Physicist John Schmidt, designer of cutting-edge fusion facilities, dies at 72 By John Greenwald February 15, 2013 Tweet Widget Google Plus One Share on Facebook John Schmidt,...

135

Evolution of Landau levels into edge states in graphene  

E-Print Network [OSTI]

Two-dimensional electron systems in the presence of a magnetic field support topologically ordered states, in which the coexistence of an insulating bulk with conducting one-dimensional chiral edge states gives rise to the ...

Li, Guohong

136

TOWARD THE MINIMUM INNER EDGE DISTANCE OF THE HABITABLE ZONE  

E-Print Network [OSTI]

We explore the minimum distance from a host star where an exoplanet could potentially be habitable in order not to discard close-in rocky exoplanets for follow-up observations. We find that the inner edge of the Habitable ...

Zsom, Andras

137

Turbulent heat transfer and friction in a segmental channel that simulates leading-edge cooling channels of modern turbine blades  

E-Print Network [OSTI]

. Steady state heat transfer experiments for three channel cross sections, ribbed curved wall-to-smooth flat wall heat flux ratio of 0.0, 1.0, 2.0, 4.0, 6.0, and infinity, and mass flow rates corresponding to Reynolds numbers between 10 000 and 70 000...

Spence, Rodney Brian

2012-06-07T23:59:59.000Z

138

How much information can be obtained from tracking the position of the leading edge in a scratch assay?  

Science Journals Connector (OSTI)

...Fisher-Kolmogorov equation in two dimensions...33]. The simulation domain...analysis We use Matlab's Image...respectively. The simulation data are converted from a matrix representing...images and simulation data is identical...repeat the process at many time...rather than Matlab. For this...given by equation (3.2...

2014-01-01T23:59:59.000Z

139

Robbins project - start-up and commercial operation at a leading-edge recycling, waste-to-energy plant  

SciTech Connect (OSTI)

On January 22, 1997, the Robbins Resource Recovery Facility began commercial operation in Robbins, Illinois, a suburb of Chicago, after a very successful start-up program. The first installation of its kind in the United States, the Robbins facility converts municipal solid waste (MSW) into refuse-derived fuel (RDF) that is fired in two circulating fluidized-bed boilers. Steam from the boilers powers a turbine generator that can produce enough electricity to service more than 50,000 homes. The Robbins facility processes a minimum of 1600 tons of MSW per day. Some 75 percent of the MSW is converted into RDF. In addition to compostable material, the balance yields reusable aluminum, ferrous materials, and glass. Even ash produced by the circulating fluidized-bed (CFB) boilers can be used to manufacture cement. The Robbins facility is operated by Foster Wheeler Illinois, Inc., a member of the Foster Wheeler Power Systems Group. The plant was engineered by Foster Wheeler USA Corporation and built by Foster Wheeler Constructors, Inc. Foster Wheeler Energy International, Inc. provided the circulating fluidized-bed boilers.

NONE

1997-12-31T23:59:59.000Z

140

Prediction of turbulent flow and local heat transfer in internally cooled turbine airfoils: the leading edge region  

E-Print Network [OSTI]

; Normalized pressure contours at the stagantion region for H/D = 2 and Ren = 23, 000 41 ~nste i' 1~1'W 1. 0@I 0. 066 ' 01ST i 4f64 0. 171 0, 086 Figure 6. 5! Normalized velocity magnitude contours at the stagnation region aud wall jet region for H/D...; Normalized pressure contours at the stagantion region for H/D = 2 and Ren = 23, 000 41 ~nste i' 1~1'W 1. 0@I 0. 066 ' 01ST i 4f64 0. 171 0, 086 Figure 6. 5! Normalized velocity magnitude contours at the stagnation region aud wall jet region for H/D...

Pontaza, Juan Pablo

2013-02-22T23:59:59.000Z

Note: This page contains sample records for the topic "worn leading edge" 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

1364 The Leading Edge October 2008 Help make a difference with education and outreach for the global  

E-Print Network [OSTI]

global energy outlook Energy consumption is ubiquitous in our lives, and energy is the lifeblood to the Energy Information Administra- tion (EIA), which provides the official energy statistics from the US government, global energy consumption is expected to grow by about 70% in the coming 25 years (Figure 1

Snieder, Roel

142

Particle Image Velocimetry Near the Leading Edge of a Sikorsky SSC-A09 Wing During Dynamic Stall  

E-Print Network [OSTI]

in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, Rodney D. W. Bowersox Committee Members, Simon North Othon Rediniotis Head of Department, Dimitris Lagoudas December 2011.... Rodney D. W. Bowersox Dynamic stall has proven to be a complex problem in helicopter aerodynamics because it limits the helicopter flight regime. Dynamic stall is characterized by drastic increases in lift and a delay of stall due to rapid pitching...

Vannelli, Rachel Renee

2012-02-14T23:59:59.000Z

143

E-Print Network 3.0 - absorption edge detector Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

XAFS , x-ray ab- sorption near-edge spectroscopy XANES and diffraction anomalous... of a standard sample, with known absorption edge features at tabulated energies, and 3...

144

Lead Auditor - Auditor Preparation Checklist  

Broader source: Energy.gov (indexed) [DOE]

Lead Auditor - Auditor Preparation Checklist Lead Auditor - Auditor Preparation Checklist |Number|Item|Status | ||Staff the Audit || ||Auditor Qualifications|| ||Audit Notification & Audit Plan Issued|| ||Auditor access issues resolved|| ||Audit team facilities|| ||Auditor audit areas / elements assigned|| ||Check lists Prepared Issued || ||Audited Org Docs to team QPP Work plans etc|| ||Past Audits to team || ||PC availability for Auditors|| ||Audit forms to auditors People Interviewed Documents reviewed Entrance Meeting Attendance Exit Meeting Attendance, Issue Development Sheet[1] Form 11 Form 21|| ||Audit protocols, conduct of auditors|| ||Entrance meeting slides|| ||Exit meeting slide outline|| ||Report Shell to Team|| ----------------------- [1] Use of this will be explained in the second article of the series

145

NATIONAL LEAD COMPANY OF OHIO  

Office of Legacy Management (LM)

t-t AL- 1. + T fi r,y* t ,.- . NATIONAL LEAD COMPANY OF OHIO Ofll i iy Ci)wp HEALTH AND SAFETY DIVISION - ANALYTICAL DEPT. ANALYTICAL DATA SHEET U-G b ;33y jl:tL G c-w &3(y I...

146

A leading German government official  

E-Print Network [OSTI]

for Transatlantic Coopera- tion, called the Upstate Honors hosts German M.P. "an impressive example of our strong German- American partnership" and described Greenville as a leading example of close transatlantic busi program during their May 2012 visit to Berlin. In his role as Coordinator for Transatlantic Coopera- tion

Duchowski, Andrew T.

147

Leadership and Leading Indicators Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Leadership Leadership and Leading Indicators Peter S. Winokur, Ph.D., Member Defense Nuclear Facilities Safety Board Thanks to Matt Moury and Doug Minnema August 28, 2008 Objectives * A few thoughts about leadership * Actions taken by leaders * Role of leading indicators * Consider the future August 28, 2008 2 3 Safety Culture Safety culture is an organization's values and behaviors - modeled by its leaders and internalized by its members - that serve to make nuclear safety an overriding priority.* - Dating back to SEN-35-91, it's DOE Policy; - It's perishable; - EFCOG/DOE ISMS Safety Culture Task Team. *INPO, Principles for a Strong Nuclear Safety Culture, November 2004. August 28, 2008 4 Leadership & Mission Top 10 Ways To Know You Have A Safety Culture: * #1 is Leadership - the talk and the walk

148

Equality of bulk and edge Hall conductances for continuous magnetic random Schrdinger operators  

E-Print Network [OSTI]

In this note, we prove the equality of the quantum bulk and the edge Hall conductances in mobility edges and in presence of disorder. The bulk and edge perturbations can be either of electric or magnetic nature. The edge conductance is regularized in a suitable way to enable the Fermi level to lie in a region of localized states.

Amal Taarabt

2014-03-30T23:59:59.000Z

149

EDGE-DISJOINT HAMILTON CYCLES IN RANDOM GRAPHS FIACHRA KNOX, DANIELA KUHN AND DERYK OSTHUS  

E-Print Network [OSTI]

EDGE-DISJOINT HAMILTON CYCLES IN RANDOM GRAPHS FIACHRA KNOX, DANIELA K¨UHN AND DERYK OSTHUS a collection of (G)/2 edge-disjoint Hamilton cycles in G Gn,p, plus an additional edge-disjoint matching of Frieze and Krivelevich. 1. Introduction The question of how many edge-disjoint Hamilton cycles one can

Kühn, Daniela

150

Partnering with National Labs Brings Cutting Edge Technology to Market |  

Broader source: Energy.gov (indexed) [DOE]

Partnering with National Labs Brings Cutting Edge Technology to Partnering with National Labs Brings Cutting Edge Technology to Market Partnering with National Labs Brings Cutting Edge Technology to Market October 13, 2011 - 4:11pm Addthis The inside of the specimen/vacuum chamber of NREL's FEI Nova 200 dual beam electron microscope used to analyze the topography of materials such as Innovalight's Silicon Ink. The instrument is used to produce site-specific sections for high spatial microstructural analysis. The inside of the specimen/vacuum chamber of NREL's FEI Nova 200 dual beam electron microscope used to analyze the topography of materials such as Innovalight's Silicon Ink. The instrument is used to produce site-specific sections for high spatial microstructural analysis. Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs

151

World class recreation complements cutting-edge science  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

World class recreation complements cutting-edge science World class recreation complements cutting-edge science World class recreation complements cutting-edge science Los Alamos employees enjoy access to a network of 100+ miles of high-quality trails, much of it within walking distance from key Lab facilities or from residents' front doors. April 3, 2012 Bikers (and LANL Postdocs) Brent and Pam in Los Alamos canyon riding hard on the trail Bikers (and LANL Postdocs) Brent and Pam in Los Alamos canyon riding hard on the trail. Hikers, mountain bikers, joggers, and dog walkers can wind through thick forest, cross deep canyons or meander along picturesque mesas within city limits. All work and no play makes J. Robert Oppenheimer a dull boy Perhaps the importance of a good quality of life is why Oppie insisted that

152

Cutting-Edge Building Technologies Offer Big Energy Savings Potential |  

Broader source: Energy.gov (indexed) [DOE]

Cutting-Edge Building Technologies Offer Big Energy Savings Cutting-Edge Building Technologies Offer Big Energy Savings Potential Cutting-Edge Building Technologies Offer Big Energy Savings Potential November 5, 2013 - 3:36pm Addthis The Building Technologies Office’s Emerging Technologies Program works to advance new commerical building technologies that are expected to reach the marketplace in five years or less. | Photo of National Renewable Energy Laboratory's Research Support Facility by Dennis Schroeder, National Renewable Energy Laboratory The Building Technologies Office's Emerging Technologies Program works to advance new commerical building technologies that are expected to reach the marketplace in five years or less. | Photo of National Renewable Energy Laboratory's Research Support Facility by Dennis Schroeder, National

153

Known algorithms for EDGE CLIQUE COVER are probably optimal  

E-Print Network [OSTI]

In the EDGE CLIQUE COVER problem, given a graph G and an integer k, we ask whether the edges of G can be covered with k complete subgraphs of G or, equivalently, whether G admits an intersection model on k-element universe. Gramm et al. [JEA 2008] shown a set of simple rules that reduce the number of vertices of G to 2^k, and no algorithm is known with significantly better running time bound than a brute-force search on this reduced instance. In this paper we show that the approach of Gramm et al. is essentially optimal: we present a polynomial time algorithm that reduces an arbitrary 3-CNF-SAT formula with n variables and m clauses to an equivalent EDGE CLIQUE COVER instance (G,k) with k = O(log n) and |V(G)| = O(n + m).

Cygan, Marek; Pilipczuk, Micha?

2012-01-01T23:59:59.000Z

154

Guided Wave Inspection for Bottom Edge of Rails  

Science Journals Connector (OSTI)

Defects in a railhead and web can be detected with rail inspection cars and rail inspection tools equipped with special transducers such as wheel probes. However bottom edges of rails easily damaged regions due to contact to soil and fastening are blind zones for the conventional ultrasonic inspection technique in which signals are input from a railhead. In this paper inspection technique for defects in bottom edges of rails using guided waves were described. Dispersion curves for a rail obtained by a semi analytical finite element calculation show that a lot of propagating modes exist in a frequency region used for guided wave inspection eg. 10kHz 200kHz. Guided wave modes mainly vibrating a bottom edge of a rail were selected among the many modes in dispersion curves and then defect detection tests were done using the selected modes. Good reflections from an artificial defect and a rail end were obtained with a vertically vibrating mode.

T. Hayashi; Y. Miyazaki; M. Murase; T. Abe

2007-01-01T23:59:59.000Z

155

Composite polymer: Glass edge cladding for laser disks  

DOE Patents [OSTI]

Large neodymium glass laser disks for disk amplifiers such as those used in the Nova laser require an edge cladding which absorbs at 1 micrometer. This cladding prevents edge reflections from causing parasitic oscillations which would otherwise deplete the gain. Nova now utilizes volume-absorbing monolithic-glass claddings which are fused at high temperature to the disks. These perform quite well but are expensive to produce. Absorbing glass strips are adhesively bonded to the edges of polygonal disks using a bonding agent whose index of refraction matches that of both the laser and absorbing glass. Optical finishing occurs after the strips are attached. Laser disks constructed with such claddings have shown identical gain performance to the previous Nova disks and have been tested for hundreds of shots without significant degradation. 18 figs.

Powell, H.T.; Wolfe, C.A.; Campbell, J.H.; Murray, J.E.; Riley, M.O.; Lyon, R.E.; Jessop, E.S.

1987-11-02T23:59:59.000Z

156

Composite polymer-glass edge cladding for laser disks  

DOE Patents [OSTI]

Large neodymium glass laser disks for disk amplifiers such as those used in the Nova laser require an edge cladding which absorbs at 1 micrometer. This cladding prevents edge reflections from causing parasitic oscillations which would otherwise deplete the gain. Nova now utilizes volume-absorbing monolithic-glass claddings which are fused at high temperature to the disks. These perform quite well but are expensive to produce. Absorbing glass strips are adhesively bonded to the edges of polygonal disks using a bonding agent whose index of refraction matches that of both the laser and absorbing glass. Optical finishing occurs after the strips are attached. Laser disks constructed with such claddings have shown identical gain performance to the previous Nova disks and have been tested for hundreds of shots without significant degradation.

Powell, Howard T. (Livermore, CA); Riley, Michael O. (San Ramon, CA); Wolfe, Charles R. (Palo Alto, CA); Lyon, Richard E. (Livermore, CA); Campbell, John H. (Livermore, CA); Jessop, Edward S. (Tracy, CA); Murray, James E. (Livermore, CA)

1989-01-01T23:59:59.000Z

157

Subwavelength edge detection through trapped resonances in waveguides  

E-Print Network [OSTI]

Lenses that can collect the perfect image of an object must restore propagative and evanescent waves. However, for efficient information transfer, e.g., in compressed sensing, it is often desirable to detect only the fast spatial variations of the wave field (carried by evanescent waves), as the one created by edges or small details. Image processing edge detection algorithms perform such operation but they add time and complexity to the imaging process. Here, we present a new subwavelength approach that generates an image of only those components of the acoustic field that are equal to or smaller than the operating wavelength. The proposed technique converts evanescent waves into propagative waves exciting trapped resonances in a waveguide, and it uses periodicity to attenuate the propagative components. This approach achieves resolutions about an order of magnitude smaller than the operating wavelength and makes it possible to visualize independently edges aligned along different directions.

Molern, Miguel

2015-01-01T23:59:59.000Z

158

Predicting the Performance of Edge Seal Materials for PV (Presentation)  

SciTech Connect (OSTI)

Edge seal materials were evaluated using a 100-nm film of Ca deposited on glass and laminated to another glass substrate. As moisture penetrates the package it converts the Ca metal to transparent CaOH2 giving a clear indication of the depth to which moisture has entered. Using this method, we have exposed test samples to a variety of temperature and humidity conditions ranging from 45C and 10% RH up to 85C and 85% RH, to ultraviolet radiation and to mechanical stress. We are able to show that edge seal materials are capable of keeping moisture away from sensitive cell materials for the life of a module.

Kempe, M.; Panchagade, D.; Dameron, A.; Reese, M.

2012-03-01T23:59:59.000Z

159

Role of chemical termination in edge contact to graphene  

SciTech Connect (OSTI)

Edge contacts to graphene can offer excellent contact properties. Role of different chemical terminations is examined by using ab initio density functional theory and quantum transport simulations. It is found that edge termination by group VI elements O and S offers considerably lower contact resistance compared to H and group VII element F. The results can be understood by significantly larger binding energy and shorter binding distance between the metal contact and these group VI elements, which results in considerably lower interface potential barrier and larger transmission. The qualitative conclusion applies to a variety of contact metal materials.

Gao, Qun; Guo, Jing, E-mail: guoj@ufl.edu [Department of Electrical and Computer Engineering, University of Florida, Gainesville, Florida 32611 (United States)

2014-05-01T23:59:59.000Z

160

Gate-controlled ultraviolet photo-etching of graphene edges  

SciTech Connect (OSTI)

The chemical reactivity of graphene under ultraviolet (UV) light irradiation is investigated under positive and negative gate electric fields. Graphene edges are selectively etched when negative gate voltages are applied while the reactivity is significantly suppressed for positive gate voltages. Oxygen adsorption onto graphene is significantly affected by the Fermi level of the final state achieved during previous electrical measurements. UV irradiation after negative-to-positive gate sweeps causes predominant oxygen desorption while UV irradiation after gate sweeps in the opposite direction causes etching of graphene edges.

Mitoma, Nobuhiko; Nouchi, Ryo [Nanoscience and Nanotechnology Research Center, Osaka Prefecture University, Sakai, Osaka 599-8570 (Japan)] [Nanoscience and Nanotechnology Research Center, Osaka Prefecture University, Sakai, Osaka 599-8570 (Japan)

2013-11-11T23:59:59.000Z

Note: This page contains sample records for the topic "worn leading edge" 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

Industries of the Future: Creating a Sustainable Technology Edge  

E-Print Network [OSTI]

INDUSTRIES OF THE FUTURE: Creating A Sustainable Technology Edge Sandra L. Glatt Office of Industrial Technologies Energy Efficiency and Renewable Energy U. S. Department of Energy 55 ESL-IE-00-04-10 Proceedings from the Twenty... and Renewable Energy U.S, Department of Energy Industries of the Future: Creating a Sustainable Technology Edge . cUn' OFwlOd CCooI .. LPG .Eleclric~ CNI!hnIG. AgriclAtll'e Mining A1uminu",J Totll1* kldutb't.1 Conllomption: :W, 111 TrtIlion 8tus...

Glatt, S. L.

162

Flexible edge seal for vacuum insulating glazing units  

SciTech Connect (OSTI)

A flexible edge seal is provided for a vacuum insulating glazing unit having a first glass pane and a second glass pane spaced-apart from the first. The edge seal comprises a seal member formed of a hermetically bondable material and having a first end, a second end and a center section disposed therebetween. The first end is hermetically bondable to a first glass pane. The second end is hermetically bondable to a second glass pane. The center section comprises a plurality of convolutes.

Bettger, Kenneth J.; Stark, David H.

2012-12-11T23:59:59.000Z

163

Method and system for edge cladding of laser gain media  

DOE Patents [OSTI]

A gain medium operable to amplify light at a gain wavelength and having reduced transverse ASE includes an input surface and an output surface opposing the input surface. The gain medium also includes a central region including gain material and extending between the input surface and the output surface along a longitudinal optical axis of the gain medium. The gain medium further includes an edge cladding region surrounding the central region and extending between the input surface and the output surface along the longitudinal optical axis of the gain medium. The edge cladding region includes the gain material and a dopant operable to absorb light at the gain wavelength.

Bayramian, Andrew James; Caird, John Allyn; Schaffers, Kathleen Irene

2014-03-25T23:59:59.000Z

164

Effects of vortex generators on a blunt trailing-edge airfoil for wind turbines  

Science Journals Connector (OSTI)

Abstract Vortex generators (VGs) are commonly-used effective flow separation control devices, and are proved to have potential to improve the aerodynamic performance of large wind turbines. In this paper, the flow physics of \\{VGs\\} and how their size affects the aerodynamic performance of a blunt trailing-edge airfoil DU97-W-300 have been investigated using CFD simulations. Based on wind turbine dedicated airfoil with and without \\{VGs\\} respectively, three-dimensional numerical models were established and further validated through the comparisons between the numerical results and the experimental data. The effects of VGs' size were analyzed from several perspectives, such as trailing-edge height, length, short and long spacing between an adjacent pair of VGs. The results indicate that drag penalty is more sensitive to the increase of VG height than lift; an increment of VG length leads to negative effects on both lift and drag; increases of the spacing between an adjacent pair of \\{VGs\\} have positive impact on suppression of separated flow. Additionally, the flow field characteristics were further revealed by the analysis of streamlines and vortices in the wake region.

Linyue Gao; Hui Zhang; Yongqian Liu; Shuang Han

2015-01-01T23:59:59.000Z

165

Autoignited laminar lifted flames of propane in coflow jets with tribrachial edge and mild combustion  

SciTech Connect (OSTI)

Characteristics of laminar lifted flames have been investigated experimentally by varying the initial temperature of coflow air over 800 K in the non-premixed jets of propane diluted with nitrogen. The result showed that the lifted flame with the initial temperature below 860 K maintained the typical tribrachial structure at the leading edge, which was stabilized by the balance mechanism between the propagation speed of tribrachial flame and the local flow velocity. For the temperature above 860 K, the flame was autoignited without having any external ignition source. The autoignited lifted flames were categorized in two regimes. In the case with tribrachial edge structure, the liftoff height increased nonlinearly with jet velocity. Especially, for the critical condition near blowout, the lifted flame showed a repetitive behavior of extinction and reignition. In such a case, the autoignition was controlled by the non-adiabatic ignition delay time considering heat loss such that the autoignition height was correlated with the square of the adiabatic ignition delay time. In the case with mild combustion regime at excessively diluted conditions, the liftoff height increased linearly with jet velocity and was correlated well with the square of the adiabatic ignition delay time. (author)

Choi, B.C.; Kim, K.N.; Chung, S.H. [School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-744 (Korea)

2009-02-15T23:59:59.000Z

166

Nick Wright Named Advanced Technologies Group Lead  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Nick Wright Named Advanced Technologies Group Lead Nick Wright Named Advanced Technologies Group Lead February 4, 2013 Nick Nick Wright has been named head of the National Energy...

167

Distributed Generation Lead-by-Example Resources  

Broader source: Energy.gov [DOE]

State governments can lead by example by promoting renewable energy programs and policies. Efforts to lead by example include using renewable energy resources (including alternative fuel for...

168

Engaging Edge Networks in Preventing and Mitigating Undesirable Network Traffic  

E-Print Network [OSTI]

Introduction The current Internet has few effective mechanisms to prevent a user from flooding network traffic available to well-behaved users, thus pos- ing a significant threat to the Internet's viability (see IAB. In our view, edge networks are in the best position to control hosts who abuse the trust because

Wang, Lan

169

Flying between obstacles with an autonomous knife-edge maneuver  

E-Print Network [OSTI]

We develop an aircraft and control system that is capable of repeatedly performing a high speed (7m/s or 16 MPH) "knife-edge" maneuver through a gap that is smaller than the aircraft's wingspan. The maneuver consists of ...

Barry, Andrew J. (Andrew James)

2012-01-01T23:59:59.000Z

170

Feedback control of edge turbulence in a tokamak  

Science Journals Connector (OSTI)

An experiment on feedback control of edge turbulence has been undertaken on the KT-5C tokamak. The results indicate that the edge turbulence could be suppressed or enhanced depending on the phase shift of the feedback network. In a typical case of 90 phase shift feedback, the turbulence amplitudes of both T-tildee and e were reduced by about 25% when the gain of the feedback network was 15. Correspondingly the radial particle flux decreased to about 75% level of the background. Through bispectral analysis it is found that there exists a substantial nonlinear coupling between various modes comprised in edge turbulence, especially in the frequency range from about 10 kHz to 100 kHz, which contains the large part of the edge turbulence energy in KT-5C tokamak. In particular, by actively controlling the turbulence amplitude using feedback, a direct experimental evidence of the link between the nonlinear wave-wave coupling over the whole spectrum in turbulence, the saturated turbulence amplitude, and the radial particle flux was provided.

Zhai Kan; Wen Yi-zhi; Yu Chang-xuan; Liu Wan-dong; Wang Chao; Zhuang Ge; Xu Zhi-zhan

1997-03-01T23:59:59.000Z

171

Life on the Edge: Monitoring and Running A Very Large  

E-Print Network [OSTI]

Life on the Edge: Monitoring and Running A Very Large Perforce Installation Dan Bloch, Google March of additional hardware or software. Introduction Perforce scales astonishingly well, but many if not most sites are buying faster hardware or splitting the depot. Hardware upgrades are indeed often the right solution

Tomkins, Andrew

172

Scale-invariant filtering design and analysis for edge detection  

Science Journals Connector (OSTI)

...integral filter|scale-space smoothing|two-dimensional filtering...behaviour known as scale-space smoothing causing edges to deform...scale) of the filter. This smoothing effect distorts the original...ramps. Infinite symmetric exponential filter is also proposed by...

2011-01-01T23:59:59.000Z

173

The brain near the edge Dante R. Chialvo  

E-Print Network [OSTI]

The brain near the edge Dante R. Chialvo Department of Physiology, Feinberg Medical School grain, the brain seems a relatively small dynamical system composed by a few dozen interacting areas that some of the most fundamental properties of the functioning brain are possible because

Chialvo, Dante R.

174

Optimal acyclic edge colouring of grid like graphs  

Science Journals Connector (OSTI)

We determine the values of the acyclic chromatic index of a class of graphs referred to as d-dimensional partial tori. These are graphs which can be expressed as the cartesian product of d graphs each of which is an induced path or cycle. This class ... Keywords: Acyclic chromatic index, Acyclic edge colouring, Graph, Hypercube, Mesh

Rahul Muthu, N. Narayanan, C. R. Subramanian

2010-11-01T23:59:59.000Z

175

Femtosecond laser-induced modification of potassium-magnesium silicate glasses: An analysis of structural changes by near edge x-ray absorption spectroscopy  

SciTech Connect (OSTI)

The effects of femtosecond laser pulse irradiation on the glass structure of alkaline silicate glasses were investigated by x-ray absorption near edge structure spectroscopy using the beamline of the Physikalisch-Technische Bundesanstalt at the electron synchrotron BESSY II in Berlin (Germany) by analyzing the magnesium K-edge absorption peak for different laser fluences. The application of fluences above the material modification threshold (2.1 J/cm{sup 2}) leads to a characteristic shift of {approx}1.0 eV in the K-edge revealing a reduced ({approx}3%) mean magnesium bond length to the ligated oxygen ions (Mg-O) along with a reduced average coordination number of the Mg ions.

Seuthe, T.; Eberstein, M. [Fraunhofer-Institut fuer Keramische Technologien und Systeme (IKTS), Winterbergstrasse 28, 01277 Dresden (Germany); Hoefner, M.; Eichler, H. J.; Grehn, M. [Technische Universitaet Berlin, Institut fuer Optik und Atomare Physik, Strasse des 17. Juni 135, 10623 Berlin (Germany); Reinhardt, F. [Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587 Berlin (Germany); Tsai, W. J. [ITRI South, Industrial Technology Research Institute, 8 Gongyan Rd., Liu-jia District, Tainan City 73445, Taiwan (China); Bonse, J. [BAM Bundesanstalt fuer Materialforschung und - pruefung, Unter den Eichen 87, 12205 Berlin (Germany)

2012-05-28T23:59:59.000Z

176

Scintillation properties of lead sulfate  

SciTech Connect (OSTI)

We report on the scintillation properties of lead sulfate (PbSO{sub 4}), a scintillator that show promise as a high energy photon detector. It physical properties are well suited for gamma detection, as its has a density of 6.4 gm/cm{sup 3}, a 1/e attenuation length for 511 keV photons of 1.2 cm, is not affected by air or moisture, and is cut and polished easily. In 99.998% pure PbSO{sub 4} crystals at room temperature excited by 511 keV annihilation photons, the fluorescence decay lifetime contains significant fast components having 1.8 ns (5%) and 19 ns (36%) decay times, but with longer components having 95 ns (36%) and 425 ns (23%) decays times. The peak emission wavelength is 335 nm, which is transmitted by borosilicate glass windowed photomultiplier tubes. The total scintillation light output increases with decreasing temperature fro 3,200 photons/MeV at +45{degrees}C to 4, 900 photons/MeV at room temperature (+25{degrees}C) and 68,500 photons/MeV at {minus}145{degrees}C. In an imperfect, 3 mm cube of a naturally occurring mineral form of PbSO{sub 4} (anglesite) at room temperature, a 511 keV photopeak is seen with a total light output of 60% that BGO. There are significant sample to sample variations of the light output among anglesite samples, so the light output of lead sulfate may improve when large synthetic crystals become available. 10 refs.

Moses, W.W.; Derenzo, S.E. [Lawrence Berkeley Lab., CA (United States); Shlichta, P.J. [Crystal Research, San Pedro, CA (United States)

1991-11-01T23:59:59.000Z

177

NATIONAL LEAD COMPANY OF OHIO  

Office of Legacy Management (LM)

~y-f-hjLo-- yy; 4: j ).,Ic ~y-f-hjLo-- yy; 4: j ).,Ic +- NATIONAL LEAD COMPANY OF OHIO s _ HEALTH AND SAFETY DIVISION - ANALYTICAL DEPT. . ANALYTICAL DATA SHEET o-0 1. H. NO. TRIAL, HYGIENE AND RADIATION DEPT. AMPLE Nti.1. //- 6:itEC TEDI it/;/L 5 .,- -..-- -- -.._-. -. I --- --- 1 ANALYTICA .OATE RECeiVEDi mri /-2-v& 3 Li >,a. HCJ _-..k.-*..- -.v._ 1 NO. DISTRIBUTION OF COPIES 1 Analytlcal Labwatwy (RECORD COPP) 2 Industrial Hygiene 8 Radlation Dept. . 3' Water Treatment Plant (Far Water Smmplos Only)' t' , /,' 30 ,I7 \ I _- ' -I .;35; /z , / /-7 . jj ,j> b :3 cl /1' , i),: A,' . i] NLO-HbS-736 (REV. 10/14~6Or I. .-- . s N A T I O N A L L E A D C O M P A N Y O F O H IO H E A L T H A N D S A F E T Y DIVISION - A N A L Y T I C A L D E P T . A N A L Y T I C A L D A T A S H E E T i. I- . '4 ( '.. /a ' li 4 '. r I if 1. - I :

178

Shorts due to diagnostic leads  

SciTech Connect (OSTI)

The superconducting toroidal field coils that are being tested in the Large Coil Test Facility (LCTF) are heavily instrumented. General Electric coil, a lead wire of an internal sensor became shorted across an estimated three or four turns of the pancake winding. This short occurred during the final stages of the winding fabrication and was not accessible for repair. Resistance, voltage gradient, and transient voltage decay measurements were performed to characterize the short and the magnetic damping of the large steel bobbin and outer structural ring. The 32-gage wire causing the short was estimated to be about 10 cm long, with a resistance of 55 m..cap omega... As a safety measure, we decided to burn out the shorted wire at room temperature before installing the coil in LCTF. Tests were made to determine the energy needed to vaporize a small wire. Computer calculations indicated that within the voltage limits set for the coil, it was not feasible to burn out the wire by rapidly dumping the coil from a low-current dc charge-up. We accomplished the burnout by applying 800 V at 3.25 A, and 60 Hz for about 1 s. Transient voltage decay measurements made after the burnout and compared with those made before the attempt confirmed that the short had indeed been opened.

Ellis, J.F.; Lubell, M.S.; Pillsbury, R.D.; Shen, S.S.; Thome, R.J.; Walstrom, P.L.

1985-03-01T23:59:59.000Z

179

River Edge, New Jersey: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Edge, New Jersey: Energy Resources Edge, New Jersey: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 40.9287098°, -74.0398622° 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":40.9287098,"lon":-74.0398622,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

180

Edge-states ferromagnetism of WS{sub 2} nanosheets  

SciTech Connect (OSTI)

The multilayer WS{sub 2} nanosheets prepared from WO{sub 3} nanowires exhibit strong ferromagnetic behavior with saturation magnetization (M{sub S}) of 0.0058?emu/g and coercive field (H{sub C}) of 92?Oe at room temperature. By decreasing the temperature down to 3?K the H{sub c} is increased up to 1115 Oe, revealing the existence of long-range magnetic ordering. Density functional theory spin-polarized calculations predict that strong ferromagnetic moments in WS{sub 2} nanosheets are attributed to the zigzag edge sulphur S and tungsten W atoms. Our findings also suggest that the WS{sub 2} nanosheets with a high density of edge spins could be used to fabricate spintronics devices, which are circuits utilizing the spin of the electron to process and store information.

Huo, Nengjie; Li, Yan; Kang, Jun; Li, Renxiong; Xia, Qinglin; Li, Jingbo, E-mail: jbli@semi.ac.cn [State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P. O. Box 912, Beijing 100083 (China)

2014-05-19T23:59:59.000Z

Note: This page contains sample records for the topic "worn leading edge" 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

Delineation of a coal burn edge with seismic refraction  

SciTech Connect (OSTI)

Coal seams in many areas of western United States have ignited and burned for considerable distances underground. The boundary between the coal and clinker needs to be defined for determination of reserves. Field tests of a seismic refraction method were conducted at Kerr-McGee Coal Corp's open pit Clovis Point mine near Gillette, Wyoming. Explosive sources were detonated in shot holes in the pit floor. Geophone lines, laid on the surface beyond the edge of the pit, crossed from an area of known coal to an area of clinker. Delays in arrival times correlated with the expected beginning of the clinker zone. Waves passing through the clinker also exhibit a significant attenuation. A magnetic survey concluded along the seismic lines showed anomalies in the regions where seismic data indicated the burn edge.

Sontag, K.D.; Wolfe, P.J.

1984-05-01T23:59:59.000Z

182

Hot compression process for making edge seals for fuel cells  

DOE Patents [OSTI]

A hot compression process for forming integral edge seals in anode and cade assemblies wherein the assemblies are made to a nominal size larger than a finished size, beads of AFLAS are applied to a band adjacent the peripheral margins on both sides of the assemblies, the assemblies are placed in a hot press and compressed for about five minutes with a force sufficient to permeate the peripheral margins with the AFLAS, cooled and cut to finished size.

Dunyak, Thomas J. (Blacksburg, VA); Granata, Jr., Samuel J. (South Greensburg, PA)

1994-01-01T23:59:59.000Z

183

Children and lead: new findings and concerns  

SciTech Connect (OSTI)

An editorial dealing with lead in the environment and its health risks to children is presented. Young children are particularly vulnerable to lead exposure. Through hand-to-mouth activities, such as thumb sucking, nail biting, or eating with dirty hands, lead in house dust and garden soil readily enters their bodies. Children with pica are exposed to more lead because they eat such items as paint chips, broken plaster, and dirt. Moreover, intestinal lead absorption is greater in children than in adults. The author recommends a concerted effort to reduce undue lead absorption in children. (JMT)

Lin-Fu, J.S.

1982-09-02T23:59:59.000Z

184

Loop formation in graphitic nanoribbon edges using furnace heating or Joule heating  

E-Print Network [OSTI]

Here the authors report the use of either furnace heating or Joule heating to pacify the exposed graphene edges by loop formation in a novel graphitic nanoribbonmaterial, grown by chemical vapor deposition. The edge energy ...

Jia, Xiaoting

185

On the ratio between shifts in the eddy-driven jet and the Hadley cell edge  

Science Journals Connector (OSTI)

This study explores the relationship between latitudinal shifts in the eddy-driven jet and in the Hadley cell edge as depicted in models and ... 1 between the eddy-driven jet and the Hadley cell edge over the Sou...

Paul W. Staten; Thomas Reichler

2014-03-01T23:59:59.000Z

186

Theory of nitrogen doping of carbon nanoribbons: Edge effects  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

Nitrogen doping of a carbon nanoribbon is profoundly affected by its one-dimensional character, symmetry, and interaction with edge states. Using state-of-the-art ab initio calculations, including hybrid exact-exchange density functional theory, we find that, for N-doped zigzag ribbons, the electronic properties are strongly dependent upon sublattice effects due to the non-equivalence of the two sublattices. For armchair ribbons, N-doping effects are different depending upon the ribbon family: for families 2 and 0, the N-induced levels are in the conduction band, while for family 1 the N levels are in the gap. In zigzag nanoribbons, nitrogen close to the edge is a deep center, while in armchair nanoribbons its behavior is close to an effective-mass-like donor with the ionization energy dependent on the value of the band gap. In chiral nanoribbons, we find strong dependence of the impurity level and formation energy upon the edge position of the dopant, while such site-specificity is not manifested in the magnitude of the magnetization.

Jiang, Jie [North Carolina State Univ., Raleigh, NC (United States) and Yale Univ, New Haven, CT (United States); Turnbull, Joseph [North Carolina State Univ., Raleigh, NC (United States); Lu, Wenchang [North Carolina State Univ., Raleigh, NC (United States) and Oak Ridge National Lab., TN (United States); Boguslawski, Piotr [North Carolina State Univ., Raleigh, NC (United States) and Institute of Physics, Warsaw, and Bydgoszcz (Poland); Bernholc, J. [North Carolina State Univ., Raleigh, NC (United States) and Oak Ridge National Lab., TN (United States)

2012-01-05T23:59:59.000Z

187

A knife-edge array field emission cathode  

SciTech Connect (OSTI)

many cathode applications require a new type of cathode that is able to produce short pulsed electron beams at high emission current. Gated field emitter arrays of micrometer size are recognized as candidates to meet this need and have become the research focus of vacuum microelectronics. Existing fabrication methods produce emitters that are limited either in frequency response or in current emission. One reason is that the structure of these emitters are not sufficiently optimized. In this study, the author investigated the factors that affect the performance of field emitters. An optimum emitter structure, the knife-edge field emitter array, was developed from the analysis. Large field enhancement factor, large effective emission area, and small emitter capacitance are the advantages of the structure. The author next explored various options of fabricating the knife-edge emitter structure. He proposed a unique thin film process procedure and developed the fabrication techniques to build the emitters on (110) silicon wafers. Data from the initial cathode tests showed very low onset voltages and Fowler-Nordheim type emission. Emission simulation based on the fabricated emitter structure indicated that the knife-edge emitter arrays have the potential to produce high performance in modulation frequency and current emission. Several fabrication issues that await further development are discussed and possible solutions are suggested.

Lee, B.

1994-08-01T23:59:59.000Z

188

Ionized gas at the edge of the Central Molecular Zone  

E-Print Network [OSTI]

To determine the properties of the ionized gas at the edge of the CMZ near Sgr E we observed a small portion of the edge of the CMZ near Sgr E with spectrally resolved [C II] 158 micron and [N II] 205 micron fine structure lines at six positions with the GREAT instrument on SOFIA and in [C II] using Herschel HIFI on-the-fly strip maps. We use the [N II] spectra along with a radiative transfer model to calculate the electron density of the gas and the [C II] maps to illuminate the morphology of the ionized gas and model the column density of CO-dark H2. We detect two [C II] and [N II] velocity components, one along the line of sight to a CO molecular cloud at -207 km/s associated with Sgr E and the other at -174 km/s outside the edge of another CO cloud. From the [N II] emission we find that the average electron density is in the range of about 5 to 25 cm{-3} for these features. This electron density is much higher than that of the warm ionized medium in the disk. The column density of the CO-dark H$_2$ layer ...

Langer, W D; Pineda, J L; Velusamy, T; Requena-Torres, M A; Wiesemeyer, H

2015-01-01T23:59:59.000Z

189

Studies On Advanced Lead-Acid Batteries.  

E-Print Network [OSTI]

??Subsequent to the studies on precursor lead-acid systems by Daniel, Grove and Sindesten, practical lead-acid batteries began with the research and inventions of Raymond Gaston (more)

Martha, Surendra Kumar

2005-01-01T23:59:59.000Z

190

Linear calculations of edge current driven kink modes with BOUT++ code  

SciTech Connect (OSTI)

This work extends previous BOUT++ work to systematically study the impact of edge current density on edge localized modes, and to benchmark with the GATO and ELITE codes. Using the CORSICA code, a set of equilibria was generated with different edge current densities by keeping total current and pressure profile fixed. Based on these equilibria, the effects of the edge current density on the MHD instabilities were studied with the 3-field BOUT++ code. For the linear calculations, with increasing edge current density, the dominant modes are changed from intermediate-n and high-n ballooning modes to low-n kink modes, and the linear growth rate becomes smaller. The edge current provides stabilizing effects on ballooning modes due to the increase of local shear at the outer mid-plane with the edge current. For edge kink modes, however, the edge current does not always provide a destabilizing effect; with increasing edge current, the linear growth rate first increases, and then decreases. In benchmark calculations for BOUT++ against the linear results with the GATO and ELITE codes, the vacuum model has important effects on the edge kink mode calculations. By setting a realistic density profile and Spitzer resistivity profile in the vacuum region, the resistivity was found to have a destabilizing effect on both the kink mode and on the ballooning mode. With diamagnetic effects included, the intermediate-n and high-n ballooning modes can be totally stabilized for finite edge current density.

Li, G. Q., E-mail: ligq@ipp.ac.cn; Xia, T. Y. [Institute of Plasma Physics, CAS, Hefei, Anhui 230031 (China); Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Xu, X. Q. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Snyder, P. B.; Turnbull, A. D. [General Atomics, San Diego, California 92186 (United States); Ma, C. H.; Xi, P. W. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); FSC, School of Physics, Peking University, Beijing 100871 (China)

2014-10-15T23:59:59.000Z

191

Relaxation of potential, flows, and density in the edge plasma of CASTOR tokamak  

E-Print Network [OSTI]

Relaxation of potential, flows, and density in the edge plasma of CASTOR tokamak M. Hron1 , V on the CASTOR tokamak. A biased electrode has been used to polarize the edge plasma. The edge plasma potential time in the range of 10 - 30 µs when the electrode biasing is turn off in the CASTOR tokamak

Boyer, Edmond

192

EDGE-DISJOINT HAMILTON CYCLES IN GRAPHS DEMETRES CHRISTOFIDES, DANIELA KUHN AND DERYK OSTHUS  

E-Print Network [OSTI]

EDGE-DISJOINT HAMILTON CYCLES IN GRAPHS DEMETRES CHRISTOFIDES, DANIELA K¨UHN AND DERYK OSTHUS at least n/8 edge-disjoint Hamilton cycles. More generally, we give an asymptotically best possible answer for the number of edge-disjoint Hamilton cycles that a graph G with minimum degree must have. We also prove

Osthus, Deryk

193

Hamilton Cycles Containing Randomly Selected Edges in Random Regular Graphs \\Lambda  

E-Print Network [OSTI]

Hamilton Cycles Containing Randomly Selected Edges in Random Regular Graphs \\Lambda R. W. Robinson oriented root edges have been randomly specified for the cycle to contain. The Hamilton cycle must be orientable to agree with all of the orientations on the j root edges. It is shown that the requisite Hamilton

Robinson, Robert W.

194

Crossings and nestings of two edges 01-Fillings of moon polyominoes  

E-Print Network [OSTI]

Crossings and nestings of two edges 01-Fillings of moon polyominoes Two generalizations Wang, Yan & Yeh Symmetry of 2-chains #12;Crossings and nestings of two edges 01-Fillings of moon polyominoes Two generalizations Outline 1 Crossings and nestings of two edges 2 01-Fillings of moon

195

Crossings and nestings of two edges 01-Fillings of moon polyominoes  

E-Print Network [OSTI]

Crossings and nestings of two edges 01-Fillings of moon polyominoes Two generalizations Symmetry of 2-chains #12;Crossings and nestings of two edges 01-Fillings of moon polyominoes Two generalizations Outline 1 Crossings and nestings of two edges 2 01-Fillings of moon polyominoes 3 Two

196

Building the urban river edge : proposed connections to the water at the foot of Boston's Beacon Hill  

E-Print Network [OSTI]

The core of this investigation is based on the design of built form at the public urban river edge. It proposes the transformation of a portion of public park edge into public built edge. The Esplanade embankment at the ...

Gorini, Daniel

1994-01-01T23:59:59.000Z

197

Edge cladding gain media according to IL-11317  

SciTech Connect (OSTI)

In this patent application we wish to claim the following approach to ameliorating spontaneous amplified emission (ASE) that occurs in a laser amplifier slab. There are two important elements of our approach. We wish to claim the application of both together but not either one alone. (1) The first element of the invention is to roughen the edge surfaces of the amplifier slab. A rough surface with random planar features larger than the wavelength of light will reflect and refract incident light rays at angles different than the median plane of the surface. The rough surface can then be characterized by two parameters. First there is a distribution of heights about the zero mean plane of the surface. If normal this distribution is characterized by a standard deviation. The second parameter is the correlation distance that describes how close together on average are the peaks and valleys. The ratio of these two numbers determines the spread of light reflected off the surface of the edge of the slab. (2) The second element in our invention is to bond the roughened edges of the gain medium to an ASE absorbing media using a suitable bonding agent. In order for the ASE to leave the gain medium crystal there must be minimal reflection and maximum transmission at the interface. This requires having a near match of the index of refraction of the bonding medium and the amplifier slab material at the wavelength of the ASE. Further if the index of refraction of the bonding agent is less than that of the amplifier there will be some total internal reflection even if the surface is roughened. The index of refraction of GGG is {approx} 1.92 and that of YAG is {approx} 1.84. There are no suitable bonding agents with indices of refraction this high.

Soules, T

2005-02-10T23:59:59.000Z

198

Luminescence from Edge Fracture in Shocked Lithium Fluoride Crystals  

SciTech Connect (OSTI)

Light emitted from a [100] lithium fluoride crystal was characterized under shock wave compression to 28GPa followed by complete stress release at the edges. The light was examined using time-gated optical spectrometry and imaging, time-resolved optical emission measurements, and hydrodynamic modeling. The shock arrival at the circumference of the crystal was delayed relative to the center so that the two regions could be studied at different times. The majority of the light emission originated when the shock waves released at the circumference of the crystal. Unlike previously reported results for shocked lithium fluoride, we found that the light spectrum is not strictly broad band, but has spectral lines associated with atomic lithium in addition to a broad band background. Also, the emission spectrum depends strongly on the gas surrounding the sample. Based on our observations, the line emission appears to be related to fracture of the lithium fluoride crystal from the shock wave releasing at the edges. Experimenters frequently utilize lithium fluoride crystals as transparent windows for observing shock compressed samples. Because of the experimental geometries used, the shock wave in such cases often reaches the circumference of the window at nearly the same moment as when it reaches the center of the sample-window interface. Light generated at the circumference could contaminate the measurement at the interface when this light scatters into the observed region. This background light may be reduced or avoided using experimental geometries which delay the arrival of the shock wave at the edges of the crystal.

Turley, W. D. [NSTec; Stevens, G. D. [NSTec; Capelle, G. A. [NSTec; Grover, M. [NSTec; Holtkamp, D. B. [LANL; LaLone, B. M. [NSTec; Veeser, L. R. [NSTec, LANL

2013-04-01T23:59:59.000Z

199

Edge coating apparatus with movable roller applicator for solar cell substrates  

DOE Patents [OSTI]

A non-contact edge coating apparatus includes an applicator for applying a coating material on an edge of a solar cell substrate and a control system configured to drive the applicator. The control system may drive the applicator along an axis to maintain a distance with an edge of the substrate as the substrate is rotated to have the edge coated with a coating material. The applicator may include a recessed portion into which the edge of the substrate is received for edge coating. For example, the applicator may be a roller with a groove. Coating material may be introduced into the groove for application onto the edge of the substrate. A variety of coating materials may be employed with the apparatus including hot melt ink and UV curable plating resist.

Pavani, Luca; Abas, Emmanuel

2012-12-04T23:59:59.000Z

200

2D-1D Coupling in Cleaved Edge Overgrowth  

Science Journals Connector (OSTI)

We study the scattering properties of an interface between a one-dimensional (1D) wire and a two-dimensional (2D) electron gas. Experiments were conducted in the highly controlled geometry provided by molecular bean epitaxy overgrowth onto the cleaved edge of a high quality GaAs /AlGaAs quantum well. Such structures allow for the creation of variable length 1D-2D coupling sections. We find ballistic 1D electron transport through these interaction regions with a mean free path as long as 6 ?m. Our results explain the origin of the puzzling nonuniversal conductance quantization observed previously in such 1D wires.

R. de Picciotto; H. L. Stormer; A. Yacoby; L. N. Pfeiffer; K. W. Baldwin; K. W. West

2000-08-21T23:59:59.000Z

Note: This page contains sample records for the topic "worn leading edge" 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

Interacting spins and holes in zigzag edge nanographene  

SciTech Connect (OSTI)

We have investigated charge and spin gap properties of zigzag edge graphene nanoribbons (ZGNRs) modeled within Hubbard Hamiltonian with onsite electron-electron interaction using semi-empirical many-body configuration interaction (CI) method. The charge gap behavior resembles the mean-field results, showing minima near Dirac point. We have observed unprecedented gap-less spin excitations over the flat band region. Moreover, doping the ZGNRs with holes reduces both the charge and spin gaps, inducing metallic and magnetic behavior, which can be exploited to fabricate spintronic devices.

Dutta, Sudipta; Wakabayashi, Katsunori [International Center for Materials Nanoarchitechtonics (WPI-MANA) National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki - 305-0044 (Japan)

2013-12-04T23:59:59.000Z

202

Growing Cutting-edge X-ray Optics  

SciTech Connect (OSTI)

Ever imagined that an Xbox controller could help open a window into a world spanning just one billionth of a meter? Brookhaven Lab's Ray Conley grows cutting-edge optics called multilayer Laue lenses (MLL) one atomic layer at a time to focus high-energy x-rays to within a single nanometer. To achieve this focusing feat, Ray uses a massive, custom-built atomic deposition device, an array of computers, and a trusty Xbox controller. These lenses will be deployed at the Lab's National Synchrotron Light Source II, due to begin shining super-bright light on pressing scientific puzzles in 2015

Ray Conley

2012-11-30T23:59:59.000Z

203

Scaling laws governing the roughness of the swash edge line  

E-Print Network [OSTI]

The physics of swash i.e. a layer of water that washes up on the beach after an incoming wave has broken is complicated and intriguing. It includes perplexed hydrodynamic and sediment transport events. In our paper we address to the roughness of the moving swash boundary at which a beach, water and air meet. We treat the behavior of this boundary as an interfacial phenomenon, without going into details of formation of edge waves and beach cusps, covered broadly in literature. This "crude" approach turns out to be productive and revealing the resemblance of the swash line with a broad diversity of effects arising from the random pinning of moving boundaries.

Ed. Bormashenko; A. Musin; R. Grynuov

2014-02-23T23:59:59.000Z

204

Trailing edge noise theory for rotating blades in uniform flow  

E-Print Network [OSTI]

This paper presents a new formulation for trailing edge noise radiation from rotating blades based on an analytical solution of the convective wave equation. It accounts for distributed loading and the effect of mean flow and spanwise wavenumber. A commonly used theory due to Schlinker and Amiet (1981) predicts trailing edge noise radiation from rotating blades. However, different versions of the theory exist; it is not known which version is the correct one and what the range of validity of the theory is. This paper addresses both questions by deriving Schlinker and Amiet's theory in a simple way and by comparing it to the new formulation, using model blade elements representative of a wind turbine, a cooling fan and an aircraft propeller. The correct form of Schlinker and Amiet's theory (1981) is identified. It is valid at high enough frequency, i.e. for a Helmholtz number relative to chord greater than one and a rotational frequency much smaller than the angular frequency of the noise sources.

Sinayoko, Samuel; Agarwal, Anurag

2013-01-01T23:59:59.000Z

205

Energy Policy 29 (2001) 11331143 Ethanol as a lead replacement: phasing out leaded gasoline in Africa  

E-Print Network [OSTI]

Energy Policy 29 (2001) 1133­1143 Ethanol as a lead replacement: phasing out leaded gasoline cost of lead additives and of gasoline, and the falling cost of ethanol and sugarcane, have created sugarcane is produced in Africa to replace all the lead used in African gasoline; this would require Africa

Thomas, Valerie

206

Low Emissions Asian Development (LEAD) Program - Bangladesh ...  

Open Energy Info (EERE)

Redirect page Jump to: navigation, search REDIRECT Low Emissions Asian Development (LEAD) Program Retrieved from "http:en.openei.orgwindex.php?titleLowEmissionsAsianDevel...

207

Procurement Standards Lead-by-Example Resources  

Broader source: Energy.gov [DOE]

State and local governments can lead by example by promoting energy efficiency programs and policies for public facilities, equipment, and government operations.

208

Building Standards Lead-by-Example Resources  

Broader source: Energy.gov [DOE]

State and local governments can lead by example by promoting energy efficiency programs and policies for public facilities, equipment, and government operations.

209

Lead in Maple Syrup Produced in Connecticut  

Science Journals Connector (OSTI)

Lead in Maple Syrup Produced in Connecticut ... Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, P.O. ... Box 1106, New Haven, Connecticut 06504 ...

David E. Stilwell; Craig L. Musante

1996-10-17T23:59:59.000Z

210

Energy Efficiency Lead-by-Example Resources  

Broader source: Energy.gov [DOE]

State and local governments can lead by example by promoting energy efficiency programs and policies for public facilities, equipment, and government operations.

211

Fan-fold shielded electrical leads  

DOE Patents [OSTI]

Disclosed are fan-folded electrical leads made from copper cladded Kapton, for example, with the copper cladding on one side serving as a ground plane and the copper cladding on the other side being etched to form the leads. The Kapton is fan folded with the leads located at the bottom of the fan-folds. Electrical connections are made by partially opening the folds of the fan and soldering, for example, the connections directly to the ground plane and/or the lead. The fan folded arrangement produces a number of advantages, such as electrically shielding the leads from the environment, is totally non-magnetic, and has a very low thermal conductivity, while being easy to fabricate. 3 figs.

Rohatgi, R.R.; Cowan, T.E.

1996-06-11T23:59:59.000Z

212

Effect of Deuterium Gas Puff On The Edge Plasma In NSTX  

SciTech Connect (OSTI)

This paper describes a detailed examination of the effects of a relatively small pulsed deuterium gas puff on the edge plasma and edge turbulence in NSTX. This gas puff caused little or no change in the line-averaged plasma density or total stored energy, or in the edge density and electron temperature up to the time of the peak of the gas puff. The radial profile of the D? light emission and the edge turbulence within this gas puff did not vary significantly over its rise and fall, implying that these gas puffs did not significantly perturb the local edge plasma or edge turbulence. These measurements are compared with modeling by DEGAS 2, UEDGE, and with simplified estimates for the expected effects of this gas puff.

Zweben, S. J.

2014-02-20T23:59:59.000Z

213

Session #1: Cutting Edge Methodologies--Beyond Current DFT  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Session #1: Cutting Edge Methodologies (beyond Current DFT) Moderator: Shengbai Zhang (RPI/ REL) Topics to be addressed: Benchmarking state-of-the-art approaches, accurate energy landscape. Identify problems with the current DFT-LDA and GGA approaches and possible pathways to overcome these problems. PBE PBE How Bad is DFT for vdW Interactions? fcc Ar Benzene dimer PBE LDA Exp CCSD(T) LDA PBE vdW Interaction between H 2 and Carbon � PBE Graphene CCSD(T) LDA Benzene omitted in the LDA and GGA van der Walls (vdW)-DFT: Langreth, Kohn � Fully nonlocal � functional: � � Long-range nonlocal correlation energy functional (omitted in the LDA and GGA) ) ( � Computational cost considerably more than GGA � Added as post-GGA energy correction but force

214

NETL: News Release - DOE Launches Competition for Cutting Edge Coal  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

February 17, 2004 February 17, 2004 DOE Launches Competition for Cutting Edge Coal Technologies Round II Reaffirms President's Commitment to Reduce Power Plant Emissions WASHINGTON, DC - Secretary of Energy Spencer Abraham today announced the release of a solicitation for the second round of proposals under President Bush's Clean Coal Power Initiative (CCPI), and DOE's plans to provide approximately $280 million in federal matching funds for demonstrating barrier-breaking technologies that sharply reduce and ultimately eliminate pollution in coal-based power plants. MORE INFO General Interest: Read the solicitation [PDF-342KB] For Proposers: Go to Interactive Procurement System [More Info, Updates] NETL Business Page View the Clean Coal Technology Roadmap from NETL's Website

215

Portable X-Ray, K-Edge Heavy Metal Detector  

SciTech Connect (OSTI)

The X-Ray, K-Edge Heavy Metal Detection System was designed and built by Ames Laboratory and the Center for Nondestructive Evaluation at Iowa State University. The system uses a C-frame inspection head with an X-ray tube mounted on one side of the frame and an imaging unit and a high purity germanium detector on the other side. the inspection head is portable and can be easily positioned around ventilation ducts and pipes up to 36 inches in diameter. Wide angle and narrow beam X-ray shots are used to identify the type of holdup material and the amount of the contaminant. Precise assay data can be obtained within minutes of the interrogation. A profile of the containerized holdup material and a permanent record of the measurement are immediately available.

Fricke, V.

1999-10-25T23:59:59.000Z

216

Magnetic edge states in Aharonov-Bohm graphene quantum rings  

SciTech Connect (OSTI)

The effect of electron-electron interaction on the electronic structure of Aharonov-Bohm (AB) graphene quantum rings (GQRs) is explored theoretically using the single-band tight-binding Hamiltonian and the mean-field Hubbard model. The electronic states and magnetic properties of hexagonal, triangular, and circular GQRs with different sizes and zigzag edge terminations are studied. The results show that, although the AB oscillations in the all types of nanoring are affected by the interaction, the spin splitting in the AB oscillations strongly depends on the geometry and the size of graphene nanorings. We found that the total spin of hexagonal and circular rings is zero and therefore, no spin splitting can be observed in the AB oscillations. However, the non-zero magnetization of the triangular rings breaks the degeneracy between spin-up and spin-down electrons, which produces spin-polarized AB oscillations.

Farghadan, R., E-mail: rfarghadan@kashanu.ac.ir; Heidari Semiromi, E. [Department of Physics, University of Kashan, Kashan (Iran, Islamic Republic of); Saffarzadeh, A. [Department of Physics, Payame Noor University, P.O. Box 19395-3697 Tehran (Iran, Islamic Republic of); Department of Physics, Simon Fraser University, Burnaby, British Columbia V5A 1S6 (Canada)

2013-12-07T23:59:59.000Z

217

Radiative Plasmas At The Edge And Their Basic Properties  

SciTech Connect (OSTI)

Plasma radiation plays the determining role in temperature balance, equilibrium and stability of plasmas at the edge of fusion devices. The differences in properties of radiative plasmas and pure hydrogen ones are significant. The sound branch is split into two branches, i.e. fast and slow sounds. They may be destabilize by radiation and stabilized by internal relative motion of species. The basic properties of radiative plasmas are discussed in the current presentation. Radiation of multi-electron impurity ions is significant, even if the impurity concentration is small. It depends strongly on the Impurity Distribution Over Ionization States (IDOIS). One can find many interesting effects taking into account the finite relaxation time of IDOIS and thermal forces. In particular, the anomalous sound damping due to the internal friction, decompression shocks, slow thermal waves, and self-sustained thermal oscillation are discussed in the current presentation. Opacity effects also are discussed in the current presentation.

Morozov, D. Kh. [Institute of Nuclear Fusion, RRC 'Kurchatov Institute' Kurchatov square, 1, MOSCOW, 123182 (Russian Federation)

2006-11-30T23:59:59.000Z

218

Decays of electron Bernstein waves near plasma edge  

SciTech Connect (OSTI)

Nonlinear wave-wave couplings near the upper hybrid resonance are studied via particle-in-cell simulations. It is found that the decay of an electron Bernstein wave (EBW) depends on the ratio of the incident frequency and electron cyclotron frequency. For ratios less than two, parametric decay into a lower hybrid wave (or an ion Bernstein wave) and EBWs at a lower frequency is observed. For ratios larger than two, the daughter waves could be an electron cyclotron quasi-mode and another EBW or an ion wave and EBW. For sufficiently high incident power, the former process may dominate. Because of the electron cyclotron quasi-mode, electrons can be strongly heated by nonlinear Landau damping. As a result, the bulk of the incident power can be absorbed near plasma edge at high power. The increase in number of decay channels with frequency implies that the allowable power into the plasma must decrease with frequency.

Xiang Nong [Institute of Plasma Physics, CAS, Hefei, Anhui 230031 (China); Center for Integrated Plasma Studies, University of Colorado at Boulder, Boulder, Colorado 80309 (United States); Cary, John R. [Center for Integrated Plasma Studies, University of Colorado at Boulder, Boulder, Colorado 80309 (United States); Tech-X Corporation, Boulder, Colorado 80303 (United States)

2011-12-15T23:59:59.000Z

219

Operation of transition-edge sensors with excess thermal noise  

Science Journals Connector (OSTI)

The superconducting transition-edge sensor (TES) is currently one of the most attractive choices for ultra-high resolution calorimetry in the keV x-ray band, and is being considered for future ESA and NASA missions. We have performed a study on the noise characteristics of Au/Ti bilayer TESs, at operating temperatures around ~100mK, with the SQUID readout at 1.5K. Experimental results indicate that without modifications the back-action noise from the SQUID chip degrades the noise characteristics significantly. We present a simple and effective solution to the problem: by installing an extra shunt resistor which absorbs the excess radiation from the SQUID input, we have reduced the excess thermal (photon) noise power down by approximately a factor of five, allowing high resolution operation of the sensors.

I J Maasilta; K M Kinnunen; A K Nuottajrvi; J Leppniemi; A Luukanen

2006-01-01T23:59:59.000Z

220

Gain media edge treatment to suppress amplified spontaneous emission in a high power laser  

DOE Patents [OSTI]

A novel method and apparatus for suppressing ASE and parasitic oscillation modes in a high average power laser is introduced. By roughening one or more peripheral edges of a solid-state crystal or ceramic laser gain media and by bonding such edges using a substantially high index bonding elastomer or epoxy to a predetermined electromagnetic absorbing arranged adjacent to the entire outer surface of the peripheral edges of the roughened laser gain media, ASE and parasitic oscillation modes can be effectively suppressed.

Hackel, Lloyd A. (Livermore, CA); Soules, Thomas F. (Livermore, CA); Fochs, Scott N. (Livermore, CA); Rotter, Mark D. (San Ramon, CA); Letts, Stephan A. (San Ramon, CA)

2008-12-09T23:59:59.000Z

Note: This page contains sample records for the topic "worn leading edge" 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

ASYMMETRY AND THE NUCLEOSYNTHETIC SIGNATURE OF NEARLY EDGE-LIT DETONATION IN WHITE DWARF CORES  

SciTech Connect (OSTI)

Most of the leading explosion scenarios for Type Ia supernovae involve the nuclear incineration of a white dwarf star through a detonation wave. Several scenarios have been proposed as to how this detonation may actually occur, but the exact mechanism and environment in which it takes place remain unknown. We explore the effects of an off-center initiated detonation on the spatial distribution of the nucleosynthetic yield products in a toy model-a pre-expanded near Chandrasekhar-mass white dwarf. We find that a single-point near edge-lit detonation results in asymmetries in the density and thermal profiles, notably the expansion timescale, throughout the supernova ejecta. We demonstrate that this asymmetry of the thermodynamic trajectories should be common to off-center detonations where a small amount of the star is burned prior to detonation. The sensitivity of the yields on the expansion timescale results in an asymmetric distribution of the elements synthesized as reaction products. We tabulate the shift in the center of mass of the various elements produced in our model supernova and find an odd-even pattern for elements past silicon. Our calculations show that off-center single-point detonations in carbon-oxygen white dwarfs are marked by significant composition asymmetries in their remnants which bear potentially observable signatures in both velocity and coordinate space, including an elemental nickel mass fraction that varies by a factor of 2-3 from one side of the remnant to the other.

Chamulak, David A.; Truran, James W. [Argonne National Laboratory, Argonne, IL (United States); Meakin, Casey A. [Steward Observatory, University of Arizona, Tucson, AZ (United States); Seitenzahl, Ivo R., E-mail: dchamulak@anl.gov [Max Planck Institute for Astrophysics, Garching (Germany)

2012-01-01T23:59:59.000Z

222

E-Print Network 3.0 - active edge sites Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

been described as edge or comer sitesof MoS2 layers... in molybdenum-containing hydrotreating catalysis and ... Source: Regalbuto, John R. - Department of Chemical Engineering,...

223

Electronic and transport properties edge functionalized graphene nanoribbons-An ab initio approach  

SciTech Connect (OSTI)

With the help of ab initio approach we have investigated the electronic and transport properties of edge functionalized zigzag graphene nanoribbons using density functional theory. We have studied the energetic stability and Fermi energy of ZGNRs. We have reported that the edge functionalization of zigzag graphene nanoribbons can break the degeneracy that can be used to promote the onset of a semiconducting to metal transition or a half metal to semiconducting state. The edge functionalization also promotes a metal-semimetal transition. It has also been observed that the transmission spectrum of the edge functionalized ZGNRs are different from those of pristine.

Chauhan, Satyendra Singh, E-mail: sschauhan-71@rediffmail.com [Institute of Information Technology and Management, ITM University, Gwalior - 474001 (India); Srivastava, Pankaj [ABV Indian Institute of Information Technology and Management, Gwalior - 474010 (India); Shrivastva, A. K. [School of Studies in Physics, Jiwaji University, Gwalior- 474011 (India)

2014-04-24T23:59:59.000Z

224

Over the Energy Edge: Results from a Seven Year New Commercial Buildings Research and Demonstration Project  

E-Print Network [OSTI]

Cody, Bonneville Power Administration Energy Edge was a research oriented demonstration project (Piette et al. 1994). Beginning in 1985, the project, sponsored by the Bonneville Power Adminis- tration

Diamond, Richard

225

The Perry Street Edge: Developing A New Pedestrian Portal To Virginia Tech.  

E-Print Network [OSTI]

??At the crossing of a strong architectural edge and an axis line, it is necessary to articulate the intersection and acknowledge the moment. But what (more)

West, Aaron William

2009-01-01T23:59:59.000Z

226

Photon-Veto Counters at the Outer Edge of the Endcap Calorimeter for the KOTO Experiment  

E-Print Network [OSTI]

The Outer-Edge Veto (OEV) counter subsystem for extra-photon detection from the backgrounds to the? $K^0_L\\rightarrow\\pi^0\

T. Matsumura; T. Shinkawa; H. Yokota; E. Iwai; T. K. Komatsubara; J. W. Lee; G. Y. Lim; J. Ma; T. Masuda; H. Nanjo; T. Nomura; Y. Odani; Y. D. Ri; K. Shiomi; Y. Sugiyama; S. Suzuki; M. Togawa; Y. Wah; H. Watanabe; T. Yamanaka

2014-12-26T23:59:59.000Z

227

TCAT to Receive Ithaca's First 'Cutting-Edge' Fuel Cell Bus ...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Archived News Stories Latest News TCAT to Receive Ithaca's First 'Cutting-Edge' Fuel Cell Bus 2 Cornellians receive Distinguished Scholar Award Versatile polymer film...

228

Transverse energy circulation and the edge diffraction of an optical vortex beam  

Science Journals Connector (OSTI)

Edge diffraction of a circular LaguerreGaussian beam represents an example of the optical vortex symmetry breakdown in which the hidden vortex energy...

Bekshaev, Aleksandr Ya; Mohammed, Kadhim A; Kurka, Ivan A

2014-01-01T23:59:59.000Z

229

Sustainability Peer Educator Group Lead Positions Position: Sustainability Peer Educators Group Lead  

E-Print Network [OSTI]

Sustainability Peer Educator Group Lead Positions Position: Sustainability Peer Educators Group times) Term of position: September 2013 ­ April 2014 Position Summary: Working with the Sustainability Project Coordinator, the Sustainability Peer Educator Group Leads will be responsible

Boonstra, Rudy

230

Property:LeadAgency | Open Energy Information  

Open Energy Info (EERE)

LeadAgency LeadAgency Jump to: navigation, search Property Name LeadAgency Property Type Page Pages using the property "LeadAgency" Showing 25 pages using this property. (previous 25) (next 25) B BLM-NV-WN-ES-08-01-1310, NV-020-08-01 + BLM + C CA-017-05-051 + BLM + CA-170-02-15 + BLM + CA-650-2005-086 + BLM + CA-670-2010-107 + BLM + CA-670-2010-CX + BLM + CA-96062042 + United States Forest Service + D DOE-EA-1116 + United States Department of Energy + DOE-EA-1621 + United States Department of Energy + DOE-EA-1676 + United States Department of Energy + DOE-EA-1733 + United States Department of Energy + DOE-EA-1759 + United States Department of Energy + DOE-EA-1849 + United States Department of Energy + DOE-EA-1961 + United States Department of Energy +

231

Lightweight, durable lead-acid batteries  

DOE Patents [OSTI]

A lightweight, durable lead-acid battery is disclosed. Alternative electrode materials and configurations are used to reduce weight, to increase material utilization and to extend service life. The electrode can include a current collector having a buffer layer in contact with the current collector and an electrochemically active material in contact with the buffer layer. In one form, the buffer layer includes a carbide, and the current collector includes carbon fibers having the buffer layer. The buffer layer can include a carbide and/or a noble metal selected from of gold, silver, tantalum, platinum, palladium and rhodium. When the electrode is to be used in a lead-acid battery, the electrochemically active material is selected from metallic lead (for a negative electrode) or lead peroxide (for a positive electrode).

Lara-Curzio, Edgar (Lenoir City, TN); An, Ke (Knoxville, TX); Kiggans, Jr., James O. (Oak Ridge, TN); Dudney, Nancy J. (Knoxville, TN); Contescu, Cristian I. (Knoxville, TN); Baker, Frederick S. (Oak Ridge, TN); Armstrong, Beth L. (Clinton, TN)

2011-09-13T23:59:59.000Z

232

Lightweight, durable lead-acid batteries  

SciTech Connect (OSTI)

A lightweight, durable lead-acid battery is disclosed. Alternative electrode materials and configurations are used to reduce weight, to increase material utilization and to extend service life. The electrode can include a current collector having a buffer layer in contact with the current collector and an electrochemically active material in contact with the buffer layer. In one form, the buffer layer includes a carbide, and the current collector includes carbon fibers having the buffer layer. The buffer layer can include a carbide and/or a noble metal selected from of gold, silver, tantalum, platinum, palladium and rhodium. When the electrode is to be used in a lead-acid battery, the electrochemically active material is selected from metallic lead (for a negative electrode) or lead peroxide (for a positive electrode).

Lara-Curzio, Edgar; An, Ke; Kiggans, Jr., James O; Dudney, Nancy J; Contescu, Cristian I; Baker, Frederick S; Armstrong, Beth L

2013-05-21T23:59:59.000Z

233

INEEL Lead Recycling in a Moratorium Environment  

SciTech Connect (OSTI)

Since 1999, the Idaho National Engineering and Environmental Laboratory (INEEL) Lead Project successfully recycled over 700,000 pounds of excess INEEL lead to the private sector. On February 14, 2000, the Secretary of Energy, Bill Richardson, formalized the January 12, 2000, moratorium on recycling radioactive scrap metal that prevented the unrestricted release of recycled scrap metals to the private sector. This moratorium created significant problems for the INEEL lead recycling program and associated plans; however, through the cooperative efforts of the INEEL and Idaho State University as well as innovative planning and creative thinking the recycling issues were resolved. This collaboration has recycled over 160,000 pounds of excess lead to Idaho State University with a cost savings of over $.5M.

Kooda, K. E.; Galloway, K.; McCray, C. W.; Aitken, D. W.

2003-02-26T23:59:59.000Z

234

INEEL Lead Recycling in a Moratorium Environment  

SciTech Connect (OSTI)

Since 1999, the Idaho National Engineering and Environmental Laboratory (INEEL) Lead Project successfully recycled over 700,000 pounds of excess INEEL lead to the private sector. On February 14, 2000, the Secretary of Energy, Bill Richardson, formalized the January 12, 2000, moratorium on recycling radioactive scrap metal that prevented the unrestricted release of recycled scrap metals to the private sector. This moratorium created significant problems for the INEEL lead recycling program and associated plans; however, through the cooperative efforts of the INEEL and Idaho State University as well as innovative planning and creative thinking the recycling issues were resolved. This collaboration has recycled over 160,000 pounds of excess lead to Idaho State University with a cost savings of over $.5M.

Kooda, Kevin Evan; Mc Cray, Casey William; Aitken, Darren William; Galloway, Kelly

2003-02-01T23:59:59.000Z

235

Richard Gerber! NERSC! User Services Group Lead  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Group Lead Debugging and Optimization Tools Thanks t o W oo---Sun Y ang a nd H elen H e Outline * Take---Aways * Debugging * Performance O p:miza:on * NERSC " automa:c" t ools...

236

Primer on lead-acid storage batteries  

SciTech Connect (OSTI)

This handbook was developed to help DOE facility contractors prevent accidents caused during operation and maintenance of lead-acid storage batteries. Major types of lead-acid storage batteries are discussed as well as their operation, application, selection, maintenance, and disposal (storage, transportation, as well). Safety hazards and precautions are discussed in the section on battery maintenance. References to industry standards are included for selection, maintenance, and disposal.

NONE

1995-09-01T23:59:59.000Z

237

Towards identifying the mechanisms underlying field-aligned edge-loss of HHFW power on NSTX  

SciTech Connect (OSTI)

Fast-wave heating will be a major heating scheme on ITER, as it can heat ions directly and is relatively unaffected by the large machine size unlike neutral beams. However, fast-wave interactions with the plasma edge can lead to deleterious effects such as, in the case of the high-harmonic fast-wave (HHFW) system on NSTX, large losses of fast-wave power in the scrape off layer (SOL) under certain conditions. In such scenarios, a large fraction of the lost HHFW power is deposited on the upper and lower divertors in bright spiral shapes. The responsible mechanism(s) has not yet been identified but may include fast-wave propagation in the scrape off layer, parametric decay instability, and RF currents driven by the antenna reactive fields. Understanding and mitigating these losses is important not only for improving the heating and current-drive on NSTX-Upgrade but also for understanding fast-wave propagation across the SOL in any fast-wave system. This talk summarizes experimental results demonstrating that the flow of lost HHFW power to the divertor regions largely follows the open SOL magnetic field lines. This lost power flux is relatively large close to both the antenna and the last closed flux surface with a reduced level in between, so the loss mechanism cannot be localized to the antenna. At the same time, significant losses also occur along field lines connected to the inboard edge of the bottom antenna plate. The power lost within the spirals is roughly estimated, showing that these field-aligned losses to the divertor are significant but may not account for the total HHFW loss. To elucidate the role of the onset layer for perpendicular fast-wave propagation with regards to fast-wave propagation in the SOL, a cylindrical cold-plasma model is being developed. This model, in addition to advanced RF codes such as TORIC and AORSA, is aimed at identifying the underlying mechanism(s) behind these SOL losses, to minimize their effects in NSTX-U, and to predict their importance in ITER.

Perkins, R. J.; Bell, R. E.; Bertelli, N.; Diallo, A.; Gerhardt, S.; Hosea, J. C.; Jaworski, M. A.; LeBlanc, B. P.; Kramer, G. J.; Maingi, R.; Phillips, C. K.; Podest, M.; Roquemore, L.; Scotti, F.; Taylor, G.; Wilson, J. R. [Princeton Plasma Physics Laboratory, Princeton, NJ (United States); Ahn, J-W.; Gray, T. K.; Green, D. L.; McLean, A. [Oak Ridge National Laboratory, Oak Ridge, TN (United States); and others

2014-02-12T23:59:59.000Z

238

Towards identifying the mechanisms underlying field-aligned edge-loss of HHFW power on NSTX  

SciTech Connect (OSTI)

Fast-wave heating will be a major heating scheme on ITER, as it can heat ions directly and is relatively unaffected by the large machine size unlike neutral beams. However, fast-wave interactions with the plasma edge can lead to deleterious effects such as, in the case of the high-harmonic fast-wave (HHFW) system on NSTX, large losses of fast-wave power in the scrape off layer (SOL) under certain conditions. In such scenarios, a large fraction of the lost HHFW power is deposited on the upper and lower divertors in bright spiral shapes. The responsible mechanism(s) has not yet been identified but may include fast-wave propagation in the scrape off layer, parametric decay instability, and RF currents driven by the antenna reactive fields. Understanding and mitigating these losses is important not only for improving the heating and current-drive on NSTX-Upgrade but also for understanding fast-wave propagation across the SOL in any fast-wave system. This talk summarizes experimental results demonstrating that the flow of lost HHFW power to the divertor regions largely follows the open SOL magnetic field lines. This lost power flux is relatively large close to both the antenna and the last closed flux surface with a reduced level in between, so the loss mechanism cannot be localized to the antenna. At the same time, significant losses also occur along field lines connected to the inboard edge of the bottom antenna plate. The power lost within the spirals is roughly estimated, showing that these field-aligned losses to the divertor are significant but may not account for the total HHFW loss. To elucidate the role of the onset layer for perpendicular fast-wave propagation with regards to fast-wave propagation in the SOL, a cylindrical cold-plasma model is being developed. This model, in addition to advanced RF codes such as TORIC and AORSA, is aimed at identifying the underlying mechanism(s) behind these SOL losses, to minimize their effects in NSTX-U, and to predict their importance in ITER.

Perkins, R. J. [Princeton Plasma Physics Laboratory (PPPL); Ahn, Joonwook [ORNL; Bell, R. E. [Princeton Plasma Physics Laboratory (PPPL); Bertelli, Nicola [Princeton Plasma Physics Laboratory (PPPL); Diallo, A. [Princeton Plasma Physics Laboratory (PPPL); Gerhardt, S. [Princeton Plasma Physics Laboratory (PPPL); Gray, T. K. [Oak Ridge National Laboratory (ORNL); Green, David L [ORNL; Jaeger, E. F. [XCEL; Hosea, J. [Princeton Plasma Physics Laboratory (PPPL); Jaworski, M. A. [Princeton Plasma Physics Laboratory (PPPL); LeBlanc, B [Princeton Plasma Physics Laboratory (PPPL); Kramer, G. [Princeton Plasma Physics Laboratory (PPPL); McLean, Adam G [ORNL; Maingi, Rajesh [ORNL; Phillips, C. K. [Princeton Plasma Physics Laboratory (PPPL); Podesta, M. [Princeton Plasma Physics Laboratory (PPPL); Ryan, Philip Michael [ORNL; Sabbagh, S. A. [Columbia University; Scotti, F. [Princeton Plasma Physics Laboratory (PPPL); Taylor, G. [Princeton Plasma Physics Laboratory (PPPL); Wilson, J. R. [Princeton Plasma Physics Laboratory (PPPL)

2013-01-01T23:59:59.000Z

239

Photovoltaic oscillations due to edge-magnetoplasmon modes in a very high-mobility two-dimensional electron gas  

Science Journals Connector (OSTI)

Using very high-mobility GaAs?AlxGa1?xAs two-dimensional electron Hall bar samples, we have experimentally studied the photoresistance and/or photovoltaic oscillations induced by microwave irradiation in the regime where both 1?B and B-periodic oscillations can be observed. In the frequency range between 27 and 130GHz, we found that these two types of oscillations are decoupled from each other, consistent with the respective models that 1?B oscillations occur in bulk while the B oscillations occur along the edges of the Hall bars. In contrast to the original report of this phenomenon [I. V. Kukushkin et al., Phys. Rev. Lett. 92, 236803 (2004)], the periodicity of the B oscillations in our samples is found to be independent of L, the length of the Hall bar section between voltage measuring leads.

K. Stone, C. L. Yang, Z. Q. Yuan, R. R. Du, L. N. Pfeiffer, and K. W. West

2007-10-16T23:59:59.000Z

240

3D Imaging of Nickel Oxidation States using Full Field X-ray Absorption Near Edge Structure Nanotomography  

SciTech Connect (OSTI)

Reduction-oxidation (redox) cycling of the nickel electrocatalyst phase in the solid oxide fuel cell (SOFC) anode can lead to performance degradation and cell failure. A greater understanding of nickel redox mechanisms at the microstructural level is vital to future SOFC development. Transmission x-ray microscopy (TXM) provides several key techniques for exploring oxidation states within SOFC electrode microstructure. Specifically, x-ray nanotomography and x-ray absorption near edge structure (XANES) spectroscopy have been applied to study samples of varying nickel (Ni) and nickel oxide (NiO) compositions. The imaged samples are treated as mock SOFC anodes containing distinct regions of the materials in question. XANES spectra presented for the individual materials provide a basis for the further processing and analysis of mixed samples. Images of composite samples obtained are segmented, and the distinct nickel and nickel oxide phases are uniquely identified using full field XANES spectroscopy. Applications to SOFC analysis are discussed.

Nelson, George; Harris, William; Izzo, John; Grew, Kyle N. (Connecticut); (USARL)

2012-01-20T23:59:59.000Z

Note: This page contains sample records for the topic "worn leading edge" 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 cultural parameters of lead poisoning: A medical anthropologist's view of intervention in environmental lead exposure  

SciTech Connect (OSTI)

This article identifies four culturally shaped sources of lead exposure in human societies: modern and historic technological sources; food habits; culturally defined health beliefs; and beauty practices. Examples of these potential sources of lead poisoning are presented from current cultures. They include the use of lead-glazed cooking pottery in Mexican-American households; folk medical use of lead in Hispanic, Arabic, South Asian, Chinese, and Hmong communities; as well as the use of lead as a cosmetic in the Near East, Southeast Asia, and South Asia. Four interacting cultural conditions that create barriers to the reduction of lead exposure and lead poisoning are identified and discussed. These are knowledge deficiencies, communication resistance, cultural reinterpretations, and incongruity of explanatory models.

Trotter, R.T. II (Northern Arizona Univ., Flagstaff (USA))

1990-11-01T23:59:59.000Z

242

Sandia National Laboratories: Due Diligence on Lead Acid Battery...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Due Diligence on Lead Acid Battery Recycling March 23, 2011 Lead Acid Batteries on secondary containment pallet Lead Acid Batteries on secondary containment pallet In 2004, the US...

243

Kinetic Simulations of Retarding-Field Analyzer Measurements in Tokamak Edge Plasmas  

E-Print Network [OSTI]

Kinetic Simulations of Retarding-Field Analyzer Measurements in Tokamak Edge Plasmas Fabrice of probe measurements in tokamaks, particularly those obtained from Retarding-Field-Analyzers (RFAs) [1]. This type of probe provides an integral of the ion velocity distribution in tokamak edge plasmas, which

244

TED: A texture-edge descriptor for pedestrian detection in video sequences  

Science Journals Connector (OSTI)

This paper presents a novel descriptor, TED, for pedestrian detection in video sequences. TED describes texture and edge information simultaneously. TED is a local descriptor because it is defined over a neighborhood. The size of the TED, independent ... Keywords: Background subtraction, Block-based approach, Edge, Local binary pattern, Pedestrian detection, Surveillance systems, Texture

Narges Armanfard; Majid Komeili; Ehsanollah Kabir

2012-03-01T23:59:59.000Z

245

Using Virtual Organizations Membership System with EDG's Grid Security and Database Access  

E-Print Network [OSTI]

Using Virtual Organizations Membership System with EDG's Grid Security and Database Access Marko University of Technology March 17, 2004 Keywords: Grid security, virtual organizations, Grid use case. This paper describes the European Data Grid's (EDG's) java security system and Spitfire database access

Haak, Hein

246

ACQUISITION AND RECONSTRUCTION OF BRAIN TISSUE USING KNIFE-EDGE SCANNING MICROSCOPY  

E-Print Network [OSTI]

ACQUISITION AND RECONSTRUCTION OF BRAIN TISSUE USING KNIFE- EDGE SCANNING MICROSCOPY A Thesis Science #12;ACQUISITION AND RECONSTRUCTION OF BRAIN TISSUE USING KNIFE- EDGE SCANNING MICROSCOPY A Thesis) ______________________________ ______________________________ Ergun Akleman Valerie Taylor (Member) (Head of Department) December 2003 Major Subject: Computer Science

Keyser, John

247

Population Ecology at the Range Edge Survival and Dispersal of a High-Density Lepidopteran  

E-Print Network [OSTI]

Population Ecology at the Range Edge Survival and Dispersal of a High-Density Lepidopteran Population Cecilia Ronnås Faculty of Natural Resources and Agricultural Sciences Department of Ecology Service/Repro, Uppsala 2011 #12;Population Ecology at the Range Edge. Survival and Dispersal of a High

248

A Mathematical Solution to Power Optimal Pipeline Design by Utilizing Soft Edge Flip-Flops  

E-Print Network [OSTI]

A Mathematical Solution to Power Optimal Pipeline Design by Utilizing Soft Edge Flip-Flops Mohammad a novel technique to minimize the total power consumption of a synchronous linear pipeline circuit by exploiting extra slacks available in some stages of the pipeline. The key idea is to utilize soft-edge flip

Pedram, Massoud

249

Resistive edge mode instability in stellarator and tokamak geometries  

SciTech Connect (OSTI)

Geometrical effects on linear stability of electrostatic resistive edge modes are investigated in the three-dimensional Wendelstein 7-X stellarator [G. Grieger et al., Plasma Physics and Controlled Nuclear Fusion Research 1990 (International Atomic Energy Agency, Vienna, 1991), Vol. 3, p. 525] and the International Thermonuclear Experimental Reactor [Progress in the ITER Physics Basis, Nucl. Fusion 7, S1, S285 (2007)]-like equilibria. An advanced fluid model is used for the ions together with the reduced Braghinskii equations for the electrons. Using the ballooning mode representation, the drift wave problem is set as an eigenvalue equation along a field line and is solved numerically using a standard shooting technique. A significantly larger magnetic shear and a less unfavorable normal curvature in the tokamak equilibrium are found to give a stronger finite-Larmor radius stabilization and a more narrow mode spectrum than in the stellarator. The effect of negative global magnetic shear in the tokamak is found to be stabilizing. The growth rate on a tokamak magnetic flux surface is found to be comparable to that on a stellarator surface with the same global magnetic shear but the eigenfunction in the tokamak is broader than in the stellarator due to the presence of large negative local magnetic shear (LMS) on the tokamak surface. A large absolute value of the LMS in a region of unfavorable normal curvature is found to be stabilizing in the stellarator, while in the tokamak case, negative LMS is found to be stabilizing and positive LMS destabilizing.

Mahmood, M. Ansar; Rafiq, T.; Persson, M.; Weiland, J. [Department of Signals and Systems, Chalmers University of Technology and Euratom-VR Association, S-41296 Goeteborg (Sweden)

2008-09-15T23:59:59.000Z

250

Chevron beam dump for ITER edge Thomson scattering system  

SciTech Connect (OSTI)

This paper contains the design of the beam dump for the ITER edge Thomson scattering system and mainly concerns its lifetime under the harsh thermal and electromagnetic loads as well as tight space allocation. The lifetime was estimated from the multi-pulse laser-induced damage threshold. In order to extend its lifetime, the structure of the beam dump was optimized. A number of bent sheets aligned parallel in the beam dump form a shape called a chevron which enables it to avoid the concentration of the incident laser pulse energy. The chevron beam dump is expected to withstand thermal loads due to nuclear heating, radiation from the plasma, and numerous incident laser pulses throughout the entire ITER project with a reasonable margin for the peak factor of the beam profile. Structural analysis was also carried out in case of electromagnetic loads during a disruption. Moreover, detailed issues for more accurate assessments of the beam dump's lifetime are clarified. Variation of the bi-directional reflection distribution function (BRDF) due to erosion by or contamination of neutral particles derived from the plasma is one of the most critical issues that needs to be resolved. In this paper, the BRDF was assumed, and the total amount of stray light and the absorbed laser energy profile on the beam dump were evaluated.

Yatsuka, E.; Hatae, T.; Bassan, M.; Itami, K. [Japan Atomic Energy Agency, 801-1 Mukoyama, Naka, Ibaraki 311-0193 (Japan)] [Japan Atomic Energy Agency, 801-1 Mukoyama, Naka, Ibaraki 311-0193 (Japan); Vayakis, G. [ITER Organization, 13115 St Paul Lez Durance Cedex (France)] [ITER Organization, 13115 St Paul Lez Durance Cedex (France)

2013-10-15T23:59:59.000Z

251

Fully Electromagnetic Nonlinear Gyrokinetic Equations for Tokamak Edge Turbulence  

SciTech Connect (OSTI)

An energy conserving set of the fully electromagnetic nonlinear gyrokinetic Vlasov equation and Maxwell's equations, which is applicable to both L-mode turbulence with large amplitude and H-mode turbulence in the presence of high E ? B shear has been derived. The phase-space action variational Lie perturbation method ensures the preservation of the conservation laws of the underlying Vlasov-Maxwell system. Our generalized ordering takes ?[sub ]i [\\sub]<< ?? ~ LE ~ Lp << R (here ?[sub ]i [\\sub] is the thermal ion Larmor radius and ?? = [B over B?] ?[sub ]i [\\sub]), as typically observed in the tokamak H-mode edge, with LE and Lp being the radial electric field and pressure gradient lengths. We take ?[sub ] perpendicular to[/sub] ?[sub ]i [\\sub] ~ 1 for generality, and keep the relative fluctuation amplitudes e?? ? ?[sub ]i [\\sub]~ ?? ? ? up to the second order. Extending the electrostatic theory in the presence of high E ? B shear [Hahm, Phys. Plasmas 3, 4658 (1996)], contributions of electromagnetic fluctuations to the particle charge density and current are explicitly evaluated via pull-back transformation from the gyrocenter distribution function in the gyrokinetic Maxwell's equation.

Hahm, T.S.; Wang, Lu,; Madsen, J.

2008-08-27T23:59:59.000Z

252

Cutting-edge issues of core-collapse supernova theory  

SciTech Connect (OSTI)

Based on multi-dimensional neutrino-radiation hydrodynamic simulations, we report several cutting-edge issues about the long-veiled explosion mechanism of core-collapse supernovae (CCSNe). In this contribution, we pay particular attention to whether three-dimensional (3D) hydrodynamics and/or general relativity (GR) would or would not help the onset of explosions. By performing 3D simulations with spectral neutrino transport, we show that it is more difficult to obtain an explosion in 3D than in 2D. In addition, our results from the first generation of full general relativistic 3D simulations including approximate neutrino transport indicate that GR can foster the onset of neutrino-driven explosions. Based on our recent parametric studies using a light-bulb scheme, we discuss impacts of nuclear energy deposition behind the supernova shock and stellar rotation on the neutrino-driven mechanism, both of which have yet to be included in the self-consistent 3D supernova models. Finally we give an outlook with a summary of the most urgent tasks to extract the information about the explosion mechanisms from multi-messenger CCSN observables.

Kotake, Kei [Department of Applied Physics, Faculty of Science, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka, 814-0180 (Japan); Nakamura, Ko [Faculty of Science and Engineering, Waseda University, Ohkubo 3-4-1, Shinjuku, Tokyo, 169-8555 (Japan); Kuroda, Takami [Department Physik, Universitt Basel, Klingelbergstrasse 82, 4056 Basel (Switzerland); Takiwaki, Tomoya [Division of Theoretical Astronomy, National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo, 181-8588 (Japan)

2014-05-02T23:59:59.000Z

253

© Marketing Edge Consulting Group and TargetGov Successful Marketing Tactics  

Broader source: Energy.gov (indexed) [DOE]

Marketing Edge Consulting Group and TargetGov Marketing Edge Consulting Group and TargetGov Successful Marketing Tactics for Government Contracts Beth Goldstein Gloria Berthold Larkin © Marketing Edge Consulting Group and TargetGov Beth Goldstein * President, Sales & Marketing Consultant * Entrepreneurship Educator * Author and Trainer on Small Business Growth 2 © Marketing Edge Consulting Group and TargetGov Gloria Berthold Larkin * President * Federal Business Development expert, recently quoted in the Wall Street Journal and TheStreet.com * -Author of The Basic Guide to Government Contracting: How to Build a Successful Business Selling Your Products and Services to the U.S. Federal Government 3 © Marketing Edge Consulting Group and TargetGov Today's Agenda ü Identifying

254

LANL highlights cutting-edge research at annual LDRD Day | National Nuclear  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

cutting-edge research at annual LDRD Day | National Nuclear cutting-edge research at annual LDRD Day | 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 > NNSA Blog > LANL highlights cutting-edge research at annual LDRD Day LANL highlights cutting-edge research at annual LDRD Day Posted By Office of Public Affairs Los Alamos National Laboratory recently showcased some of its cutting-edge

255

Influence of double-electron transitions on the EXAFS L edges of rare-earth systems  

Science Journals Connector (OSTI)

This work presents an x-ray-absorption study at the L edges of several rare-earth compounds. In both L1-edge and L3-edge spectra, anomalous features are clearly detected in the EXAFS region and have been associated with the creation of 2s4d and 2p4d double-core hole states, respectively. Comparison of theoretical calculations with the experiments are carried out using the results of explicit computation of cross sections for the allowed mainline (L edge) and double-electron (LN4,5 edges) which identify the transitions expected to be observable. In addition, the excitation energies of all of these allowed transitions are given. The influence of multielectron transitions on the EXAFS data analysis is discussed for several rare-earth-based systems. An estimate of the error introduced by neglecting the presence of double-electron transitions on coordination numbers and bond distances is given, based on these experimental data.

Jess Chaboy; Augusto Marcelli; Trevor A. Tyson

1994-05-01T23:59:59.000Z

256

LANL highlights cutting-edge research at annual LDRD Day | National Nuclear  

National Nuclear Security Administration (NNSA)

cutting-edge research at annual LDRD Day | National Nuclear cutting-edge research at annual LDRD Day | 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 > NNSA Blog > LANL highlights cutting-edge research at annual LDRD Day LANL highlights cutting-edge research at annual LDRD Day Posted By Office of Public Affairs Los Alamos National Laboratory recently showcased some of its cutting-edge

257

NERSC seeks Computational Systems Group Lead  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

seeks Computational Systems Group Lead seeks Computational Systems Group Lead NERSC seeks Computational Systems Group Lead January 6, 2011 by Katie Antypas Note: This position is now closed. The Computational Systems Group provides production support and advanced development for the supercomputer systems at NERSC. Manage the Computational Systems Group (CSG) which provides production support and advanced development for the supercomputer systems at NERSC (National Energy Research Scientific Computing Center). These systems, which include the second fastest supercomputer in the U.S., provide 24x7 computational services for open (unclassified) science to world-wide researchers supported by DOE's Office of Science. Duties/Responsibilities Manage the Computational Systems Group's staff of approximately 10

258

Leading By Example | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Leading By Example Leading By Example Leading By Example November 3, 2011 - 3:08pm Addthis New cool roofs installed on the Energy Department’s headquarters building in Washington DC in November, 2010. | Image credit Quentin Kruger, Energy Department New cool roofs installed on the Energy Department's headquarters building in Washington DC in November, 2010. | Image credit Quentin Kruger, Energy Department Brian Costlow Director, Office of Administration Brian Costlow has won several awards for his work recently, including the Federal Energy and Water Management Award and the Energy Department Energy Management Award for Exceptional Service for his efforts to make the Department's headquarter buildings models of sustainability. Every day, employees across the Energy Department work to make America more

259

Leading By Example | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Leading By Example Leading By Example Leading By Example November 3, 2011 - 3:08pm Addthis New cool roofs installed on the Energy Department’s headquarters building in Washington DC in November, 2010. | Image credit Quentin Kruger, Energy Department New cool roofs installed on the Energy Department's headquarters building in Washington DC in November, 2010. | Image credit Quentin Kruger, Energy Department Brian Costlow Director, Office of Administration Brian Costlow has won several awards for his work recently, including the Federal Energy and Water Management Award and the Energy Department Energy Management Award for Exceptional Service for his efforts to make the Department's headquarter buildings models of sustainability. Every day, employees across the Energy Department work to make America more

260

Leading Teams and Projects | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Leading Teams and Projects Leading Teams and Projects Leading Teams and Projects February 18, 2014 8:30AM EST to February 19, 2014 4:00PM EST Registration Procedure: Please use the Corporate Human Resource Information System (CHRIS) Workflow process to request training enrollment. Session: 002487 Course Code: 0001. Cost $400. For organizations not currently using the CHRIS workflow process, please follow your existing interoffice training registration process. The Office of Learning and Workforce Development (HC-20) will assess the course cost for this training session directly through each Headquarters organization's Working Capital Fund account. Field office participants should register via CHRIS. They should ensure to note the cost of the training course in the tuition field of the training request.

Note: This page contains sample records for the topic "worn leading edge" 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

Thermoforming plastic in lead shield construction  

SciTech Connect (OSTI)

Radiation treatments using low energy X-rays or electrons frequently require a final field defining shield to be placed on the patient's skin. A custom made lead cut-out is used to provide a close fit to a particular patient's surface contours. We have developed a procedure which utilizes POLYFORM thermoplastic to obtain a negative mold of the patient instead of the traditional plaster bandage or dental impression gel. The Polyform is softened in warm water, molded carefully over the patient's surface, and is removed when set or hardened, usually within five minutes. Then lead sheet cut-outs can be formed within this negative. For shielding cut-outs requiring thicker lead sheet, a positive is made from dental stone using this Polyform negative. We have found this procedure to be neat, fast and comfortable for both patient and the dosimetrist.

Abrahams, M.E.; Chow, C.H.; Loyd, M.D. (Univ. of Texas Medical Branch, Galveston (USA))

1989-09-01T23:59:59.000Z

262

Surreptitious Lead Exposure from an Asian Indian Medication  

Science Journals Connector (OSTI)

......case-report Case Report Surreptitious Lead Exposure from an...during routine biological monitoring for lead exposure conducted...the general public. Surreptitious lead exposure from an...during routine biological monitoring for lead exposure conducted......

Leon A. Saryan

1991-01-01T23:59:59.000Z

263

Precision recording of near-edge profiles of x-ray absorption edges: an improved x-ray spectroscopy  

SciTech Connect (OSTI)

The intense, highly monochromatized X-ray beams available at the Cornell High Energy Synchroton Source facility permit one to plot the fine structure at absorption edges of elements with atomic number Z > 18. With the simple device described in this report, the authors have recorded distinctive features in absorption profiles, with a reproducibility better than +/- 50 meV for the major jumps, when measured with reference to a selected material, generally the metal. These spectra, which reflect locations of the upper states into which the photoelectrons are propelled, can be obtained without pretreatment of the sample (other than grinding to a fine powder) under ambient atmospheric conditions. Of course, spectra at low or high temperatures, under controlled atmospheres, can also be recorded with a more elaborative device. This technique complements information derived from electron energy loss spectroscopy and provides a fingerprint of modifications in the electronic structure of the element induced by the coordinating shell of surrounding atoms. It is a discriminating analytical probe for characterizing compositional changes in the first coordination shell around the selected atomic centers, due to processing of amorphous (or very finely divided) materials.

Chiu, N.S.; Bauer, S.H.

1988-08-01T23:59:59.000Z

264

Lead Poisoning of Seabirds:? Environmental Risks from Leaded Paint at a Decommissioned Military Base  

Science Journals Connector (OSTI)

Here we utilized lead isotopic fingerprinting to investigate sources of elevated lead exposure to Laysan albatross (Phoebastria immutabilis) chicks in the Midway Island National Wildlife Refuge, which was established on the site of a decom missioned military base that previously had undergone lead remediation. ... Midway has had multiple uses over the past century and was the center of a major battle during World War II. ...

Myra E. Finkelstein; Roberto H. Gwiazda; Donald R. Smith

2003-06-21T23:59:59.000Z

265

tHe LeAdING MBA IN JAPAN Japan's Leading  

E-Print Network [OSTI]

tHe LeAdING MBA IN JAPAN MBA Japan #12;Japan's Leading Master of Business adMinistration prograM the mcgill mBa JaPan Program, oFFered By mcgill University's desaUtels FacUlty oF management, is the leading mBa Program in JaPan. the two-weekends-Per-month Format allows stUdents to comPlete a FUll, to

Shoubridge, Eric

266

Archaeological Lead Findings in the Ukraine  

Science Journals Connector (OSTI)

In June?August 2006 an expedition with the aim to look for low?radioactive archaeological lead at the bottom of the Black Sea near the Crimean peninsula (Ukraine) was organised by a Korean?Ukrainian collaboration. The first samples with ?0.2 tons of total mass were found at a depth of 28 m among the relics of an ancient Greek ship. Their age has been dated to the first century B.C. This lead was used as ballast in the keel of the ship. The element composition of the samples was measured by means of X?ray fluorescence and ICP?MS analyses. The first preliminary limits on the 210 Pb contamination of the samples are less than a few hundreds mBq/kg. The measurements were performed using gamma spectroscopy with HPGe?detectors and alpha spectroscopy with commercial ??detectors. Measurements of 40K Th/U in the lead samples were undertaken in Kiev and in the underground laboratories of the Laboratori Nazionali del Gran Sasso (LNGS Italy). If it was found to be radio?clean this lead could be used as high efficiency shield for ultra low?level detectors and as raw material for growing radio?pure scintillation crystals such as PbMoO4 or PbWO4 for the search for rare processes.

F. A. Danevich; S. K. Kim; H. J. Kim; A. B. Kostezh; V. V. Kobychev; B. N. Kropivyansky; M. Laubenstein; V. M. Mokina; S. S. Nagorny; A. S. Nikolaiko; S. Nisi; D. V. Poda; V. I. Tretyak; S. A. Voronov

2007-01-01T23:59:59.000Z

267

Inadvertent Climate Modification Due to Anthropogenic Lead  

SciTech Connect (OSTI)

The relationship between atmospheric particulate matter and the formation of clouds is among the most uncertain aspects of our current understanding of climate change1. One specific question that remains unanswered is how anthropogenic particulate emissions are affecting the nucleation of ice crystals. Satellites show ice clouds cover more than a third of the globe2 and models suggest that ice nucleation initiates the majority of terrestrial precipitation3. It is therefore not possible to adequately understand either climate change or the global water cycle without understanding ice nucleation. Here we show that lead-containing particles are among the most efficient ice nucleating substances commonly found in the atmosphere. Field observations were conducted with mass spectrometry and electron microscopy at two remote stations on different continents, far removed from local emissions. Laboratory studies within two cloud chambers using controlled experimental conditions support the field data. Because the dominate sources of particulate lead are anthropogenic emissions such as aviation fuel, power generation, smelting, and the re-suspension of residue from tetra-ethyl leaded gasoline4, it is likely that cloud formation and precipitation have been affected when compared to pre-industrial times. A global climate model comparing pre-industrial and anthropogenically perturbed conditions shows that lead-containing particles may be increasing the outgoing longwave radiation by 0.2 to 0.8 W m-2, thereby offsetting a portion of the warming attributed to greenhouse gases1.

Cziczo, Daniel J.; Stetzer, Olaf; Worringen, Annette; Ebert, Martin; Weinbruch, Stephan; Kamphus, M.; Gallavardin, S. J.; Curtius, J.; Borrmann, S.; Froyd, Karl D.; Mertes, S.; Mohler, Ottmar; Lohmann, U.

2009-05-01T23:59:59.000Z

268

Quality Support G. Q. Kirk, Lead (4)  

E-Print Network [OSTI]

Quality Support G. Q. Kirk, Lead (4) R. L. Bullock (4) A. C. Hendricks (4) G. H. Henkel (4) D. L) Quality Systems and Services Division February 11, 2011 Operations Analysis E. L. Griffis L. R. Brown. Kendrick M. O. Williams Maintenance Engineering L. W. Burkle III G. L. Christensen R. A. Evans R. E. Galyon

269

The Commonwealth's Leading College of Engineering  

E-Print Network [OSTI]

into an unsafe urban environment to collect data. Virginia Tech's College Of Engineering #12;College and responsibility lies before the College to advance engineering curricula that will educate the engineerThe Commonwealth's Leading College of Engineering is at Virginia Tech Faculty Expertise Guide 2010

Beex, A. A. "Louis"

270

Lead toxicity, vulnerable subpopulations and emergency preparedness  

Science Journals Connector (OSTI)

......cerebrovascular morbidity and mortality-health endpoints for which the elderly...over the past 30 y, potential health risks from environmental Pb...mortality study. Environ. Health Perspect (2006) 114:1538-1541...cadmium, cobalt and lead as more dangerous than hitherto expected. Carcinogenesis......

Norm Healey

2009-06-01T23:59:59.000Z

271

Felix Wrsten ETH Zurich enjoys a leading  

E-Print Network [OSTI]

Felix Würsten ETH Zurich enjoys a leading position in the quantum sciences. The Executive Board now research in this area. "ETH Zurich has secured it- self a good starting position and now wishes to use physics will become the tool of the engineer." Fundamental development Together with the ETH Zurich Foun

Leonardo, Degiorgi

272

Observing Nucleon Decay in Lead Perchlorate  

E-Print Network [OSTI]

Lead perchlorate, part of the OMNIS supernova neutrino detector, contains two nuclei, 208Pb and 35Cl, that might be used to study nucleon decay. Both would produce signatures that will make them especially useful for studying less-well-studied neutron decay modes, e.g., those in which only neutrinos are emitted.

R. N. Boyd; T. Rauscher; S. D. Reitzner; P. Vogel

2003-07-22T23:59:59.000Z

273

Framework Application for Core Edge Transport Simulation (FACETS)  

SciTech Connect (OSTI)

The goal of the FACETS project (Framework Application for Core-Edge Transport Simulations) was to provide a multiphysics, parallel framework application (FACETS) that will enable whole-device modeling for the U.S. fusion program, to provide the modeling infrastructure needed for ITER, the next step fusion confinement device. Through use of modern computational methods, including component technology and object oriented design, FACETS is able to switch from one model to another for a given aspect of the physics in a flexible manner. This enables use of simplified models for rapid turnaround or high-fidelity models that can take advantage of the largest supercomputer hardware. FACETS does so in a heterogeneous parallel context, where different parts of the application execute in parallel by utilizing task farming, domain decomposition, and/or pipelining as needed and applicable. ParaTools, Inc. was tasked with supporting the performance analysis and tuning of the FACETS components and framework in order to achieve the parallel scaling goals of the project. The TAU Performance System???????????????????????????????® was used for instrumentation, measurement, archiving, and profile / tracing analysis. ParaTools, Inc. also assisted in FACETS performance engineering efforts. Through the use of the TAU Performance System, ParaTools provided instrumentation, measurement, analysis and archival support for the FACETS project. Performance optimization of key components has yielded significant performance speedups. TAU was integrated into the FACETS build for both the full coupled application and the UEDGE component. The performance database provided archival storage of the performance regression testing data generated by the project, and helped to track improvements in the software development.

Dr. Allen D. Malony; Dr. Sameer S. Shende; Dr. Kevin A. Huck; Mr. Alan Morris, and Mr. Wyatt Spear

2012-03-14T23:59:59.000Z

274

A star cluster at the edge of the Galaxy  

E-Print Network [OSTI]

We study stars and molecular gas in the direction of IRAS06145+1455 (WB89-789) through NIR (JHK), molecular line-, and dust continuum observations. The kinematic distance of the associated molecular cloud is 11.9 kpc. With a galactocentric distance of about 20.2 kpc, this object is at the edge of the (molecular) disk of the Galaxy. The near-IR data show the presence of an (embedded) cluster of about 60 stars, with a radius ca. 1.3 pc and an average stellar surface density of ca. 12 pc^{-2}. We find at least 14 stars with NIR-excess, 3 of which are possibly Class I objects. The cluster is embedded in a 1000 Mo molecular/dust core, from which a molecular outflow originates. The temperature of most of the outflowing gas is < 40 K, and the total mass of the swept-up material is < 10 Mo. Near the center of the flow, indications of much higher temperatures are found, probably due to shocks. A spectrum of one of the probable cluster members shows a tentative likeness to that of a K3III-star (with an age of at least 20 Myr). If correct, this would confirm the kinematic distance. This cluster is the furthest one from the Galactic center yet detected. The combination of old and recent activity implies that star formation has been going on for at least 20 Myr, which is difficult to understand considering the location of this object, where external triggers are either absent or weak, compared to the inner Galaxy. This suggests that once star formation is occurring, later generations of stars may form through the effect of the first generation of stars on the (remnants of) the original molecular cloud.

J. Brand; J. G. A. Wouterloot

2007-02-20T23:59:59.000Z

275

T i m e -l a p s e M e a s u r e m e n t s 1060 The Leading Edge September 2011  

E-Print Network [OSTI]

studies, artificial aquifer storage and recovery, waterflood surveillance, gas production and CO2 the understanding and applications of multiple geophysical techniques for time-lapse problems, such as for CO2 ­H2 of CO2 storage. To demonstrate, we simulate density change from CO2 injection over time at a recently

276

786 The Leading Edge July 2012 SPECIAL SECTION: M e d i t e r r a n e a n r e g i o n  

E-Print Network [OSTI]

) project The study of the deep structure and evolution of passive position during initial for- mation, with the presence of subaerial deposition of basalts, shallow-water and the south Atlantic margins). We therefore need to be able to reconstruct the paleo-water depth at the time

Paris-Sud XI, Université de

277

Aerodynamics and Heat Transfer Studies of Parameters Specific to the IGCC-Requirements: Endwall Contouring, Leading Edge and Blade Tip Ejection under Rotating Turbine Conditions  

SciTech Connect (OSTI)

This report deals with the specific aerodynamics and heat transfer problematic inherent to high pressure (HP) turbine sections of IGCC-gas turbines. Issues of primary relevance to a turbine stage operating in an IGCC-environment are: (1) decreasing the strength of the secondary flow vortices at the hub and tip regions to reduce (a), the secondary flow losses and (b), the potential for end wall deposition, erosion and corrosion due to secondary flow driven migration of gas flow particles to the hub and tip regions, (2) providing a robust film cooling technology at the hub and that sustains high cooling effectiveness less sensitive to deposition, (3) investigating the impact of blade tip geometry on film cooling effectiveness. The document includes numerical and experimental investigations of above issues. The experimental investigations were performed in the three-stage multi-purpose turbine research facility at the Turbomachinery Performance and Flow Research Laboratory (TPFL), Texas A&M University. For the numerical investigations a commercial Navier-Stokes solver was utilized.

Schobeiri, Meinhard; Han, Je-Chin

2014-09-30T23:59:59.000Z

278

New leading/trailing edge modulation strategies for two-stage AC/DC PFC adapters to reduce DC-link capacitor ripple current  

E-Print Network [OSTI]

AC/DC adapters mostly employ two-stage topology: Power Factor Correction (PFC) pre-regulation stage followed by an isolated DC/DC converter stage. Low power AC/DC adapters require a small size to be competitive. Among their components, the bulk DC...

Sun, Jing

2007-09-17T23:59:59.000Z

279

Dr Marek Michalak leads a young team of biochemists whose cutting-edge research into protein folding in the endoplasmic reticulum has exciting implications for new treatments  

E-Print Network [OSTI]

and protein folding. Consequently, our research has implications for a large number of human diseases.The main strategies for protein folding disorders. What would you say are some of the most exciting findings to come pathology.These chaperones play a critical role in the control of protein folding and are therefore key

MacMillan, Andrew

280

Edge radial electric field studies via charge exchange recombination spectroscopy on the Alcator C-Mod Tokamak  

E-Print Network [OSTI]

It is commonly accepted that ExB velocity shear is responsible for the suppression of edge turbulence, which reduces the losses of both energy and particles across magnetic field lines and results in the formation of edge ...

McDermott, Rachael Marie

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "worn leading edge" 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

A RE-APPRAISAL OF INFLUENCE COEFFICIENTS FOR THE EDGES OF THIN ELASTIC SPHERICAL SHELLS SUBJECTED TO SYMMETRIC LOADS  

Science Journals Connector (OSTI)

......whether U and M^ are 'edge' forces or forces transmitted from an adjacent part of...Practical influence coefficients The 'fundamental' edge coefficients alt a^ are independent...ABBAMOWTTZ and I. A. STEQUN (eds.), Handbook of Mathematical Functions (Dover, New......

C. R. CALLADINE; N. PASKARAN

1974-02-01T23:59:59.000Z

282

4/18/2014 Human Competition Edging Out Those Lovable Icons of Wildlife -New York Times http://www.nytimes.com/2001/04/06/world/human-competition-edging-out-those-lovable-icons-of-wildlife.html 1/2  

E-Print Network [OSTI]

4/18/2014 Human Competition Edging Out Those Lovable Icons of Wildlife - New York Times http://www.nytimes.com/2001/04/06/world/human-competition-edging-out-those-lovable-icons-of-wildlife.html 1/2 Search All NYTimes.com Human Competition Edging Out Those Lovable Icons of Wildlife By ANDREW C. REVKIN Published

283

CBER-DETR Nevada Coincident and Leading Employment Leading Index Hits Bump in the Road  

E-Print Network [OSTI]

the seasonally adjusted data reported by the Bureau of Labor Statistics. The Nevada Coincident Employment IndexCBER-DETR Nevada Coincident and Leading Employment Indexes1 Leading Index Hits Bump in the Road The Nevada Coincident Employment Index measures the ups and downs of the Nevada economy using an index

Ahmad, Sajjad

284

CBER-DETR Nevada Coincident and Leading Employment Coincident Index Rises, Leading Index Pauses  

E-Print Network [OSTI]

the seasonally adjusted data reported by the Bureau of Labor Statistics. The Nevada Coincident Employment IndexCBER-DETR Nevada Coincident and Leading Employment Indexes1 Coincident Index Rises, Leading Index Pauses The Nevada Coincident Employment Index measures the ups and downs of the Nevada economy using

Ahmad, Sajjad

285

Edge Thomson scattering diagnostic on COMPASS tokamak: Installation, calibration, operation, improvements  

SciTech Connect (OSTI)

The core Thomson scattering diagnostic (TS) on the COMPASS tokamak was put in operation and reported earlier. Implementation of edge TS, with spatial resolution along the laser beam up to ?1/100 of the tokamak minor radius, is presented now. The procedure for spatial calibration and alignment of both core and edge systems is described. Several further upgrades of the TS system, like a triggering unit and piezo motor driven vacuum window shutter, are introduced as well. The edge TS system, together with the core TS, is now in routine operation and provides electron temperature and density profiles.

Bohm, P., E-mail: bohm@ipp.cas.cz; Bilkova, P.; Melich, R.; Sestak, D.; Weinzettl, V.; Stockel, J.; Hron, M.; Panek, R. [Institute of Plasma Physics ASCR, Za Slovankou 1782/3, 18200 Prague (Czech Republic); Aftanas, M.; Stefanikova, E.; Janky, F.; Havlicek, J. [Institute of Plasma Physics ASCR, Za Slovankou 1782/3, 18200 Prague (Czech Republic); Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 3, 121 16 Prague (Czech Republic); Mikulin, O. [Institute of Plasma Physics ASCR, Za Slovankou 1782/3, 18200 Prague (Czech Republic); Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University, Brehova 7, 11519 Prague (Czech Republic); Scannell, R.; Naylor, G. [CCFE, Culham Science Centre, Abingdon, Oxon OX14 3DB (United Kingdom); Frassinetti, L. [School of Electrical Engineering, Division of Fusion Plasma Physics, KTH Royal Institute of Technology, SE-100 44 Stockholm (Sweden); Fassina, A. [Consorzio RFX, Corso Stati Uniti, 4-35127 Padua (Italy); Walsh, M. J. [ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 St Paul lez Durance (France)

2014-11-15T23:59:59.000Z

286

FIRST MEASUREMENT OF PRESSURE GRADIENT-DRIVEN CURRENTS IN TOKAMAK EDGE PLASMAS  

SciTech Connect (OSTI)

Localized currents driven by pressure gradients play a pivotal role in the magnetohydrodynamic stability of toroidal plasma confinement devices. We have measured the currents generated in the edge of L- (low) and H- (high confinement) mode discharges on the DIII-D tokamak, utilizing the Zeeman effect in an injected lithium beam to obtain high resolution profiles of the poloidal magnetic field. We find current densities in excess of 1 MA/m{sup 2} in a 1 to 2 cm region near the peak of the edge pressure gradient. These values are sufficient to challenge edge stability theories based on specific current formation models.

THOMAS DM; LEONARD AW; LAO LL; OSBORNE TH; MUELLER HW; FINKENTHAL DK

2003-11-01T23:59:59.000Z

287

Lead contamination in soil and groundwater in and around a lead processing industry: a case study  

Science Journals Connector (OSTI)

Environmental pollution is of major concern across the world, which is affected by a variety of contaminants. Lead is one of the major heavy metals used in industrial activity. Unscientific handling and disposal of lead bearing residues or lead waste has led to contamination of the surrounding soil and water environment. A detailed investigation of soil and groundwater was carried out in and around a selected lead processing industry located in a designated industrial area in Bangalore, India. The results of the investigations carried out indicated that there is no groundwater contamination, but lead concentration in top soil is found to exceed the prescribed standard limits at many places within the industrial premises. Considering the site condition and extent of contamination ex-situ remediation can be considered as the feasible remedial option.

A. Ramesh; P.V. Sivapullaiah; H. Lakshmi Kantha; B.S. Nangendra Prakesh

2013-01-01T23:59:59.000Z

288

Advanced Research: Innovation Leading to Successes  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Research: Innovation Leading to Research: Innovation Leading to Successes Exploring the "Grand Challenges" of Fossil Fuels December 2010 3 Exploring the "Grand Challenges" of Fossil Fuels NETL Advanced Research The Advanced Research (AR) Program within the Office of Coal and Power Systems of the National Energy Technology Laboratory (NETL), the research arm of the U.S. Department of Energy's Office of Fossil Energy (DOE/FE), fosters the development of innovative, cost-effective technologies for improving the efficiency, reliability, and environmental performance of advanced coal and power systems. In addition, AR bridges the gap between fundamental research into technology alternatives and applied research aimed at scale-up, deployment, and commercialization of the most promising technologies identified.

289

Nick Wright Named Advanced Technologies Group Lead  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Nick Wright Named Nick Wright Named Advanced Technologies Group Lead Nick Wright Named Advanced Technologies Group Lead February 4, 2013 Nick Nick Wright has been named head of the National Energy Research Scientific Computing Center's (NERSC) Advanced Technologies Group (ATG), which focuses on understanding the requirements of current and emerging applications to make choices in hardware design and programming models that best serve the science needs of NERSC users. ATG specializes in benchmarking, system performance, debugging and analysis, workload monitoring, use of application modeling tools, and future algorithm scaling and technology assessment. The team also engages with vendors and the general research community to advocate technological features that will enhance the effectiveness of systems for NERSC scientists.

290

Lead magnesium niobate actuator for micropositioning  

DOE Patents [OSTI]

An improved lead magnesium niobate actuator is disclosed comprising a cylindrical lead magnesium niobate crystal stack mounted in a cylindrical casing wherein a bias means, such as one or more belleville washers, is located between one end of the crystal stack and a partially closed end of the casing; and adjustment means are provided which bear against the opposite end of the crystal stack, whereby an adjustable compressive force is constantly applied against the crystal stack, whether the crystal stack is actuated in an extended position, or is in an unactuated contracted position. In a preferred embodiment, cooling ports are provided for the circulation of coolant in the actuator to cool the crystal stack, and provision is made for removal and replacement of the crystal stack without disconnecting the actuator from the external device being actuated.

Swift, Charles D. (Livermore, CA); Bergum, John W. (Concord, CA)

1994-01-01T23:59:59.000Z

291

Lead magnesium niobate actuator for micropositioning  

DOE Patents [OSTI]

An improved lead magnesium niobate actuator is disclosed comprising a cylindrical lead magnesium niobate crystal stack mounted in a cylindrical casing wherein a bias means, such as one or more belleville washers, is located between one end of the crystal stack and a partially closed end of the casing; and adjustment means are provided which bear against the opposite end of the crystal stack, whereby an adjustable compressive force is constantly applied against the crystal stack, whether the crystal stack is actuated in an extended position, or is in an unactuated contracted position. In a preferred embodiment, cooling ports are provided for the circulation of coolant in the actuator to cool the crystal stack, and provision is made for removal and replacement of the crystal stack without disconnecting the actuator from the external device being actuated. 3 figs.

Swift, C.D.; Bergum, J.W.

1994-10-25T23:59:59.000Z

292

Thomas-Fermi model: The leading correction  

Science Journals Connector (OSTI)

The correct treatment of strongly bound electrons is grafted smoothly onto the Thomas-Fermi computation of the total binding energy of neutral atoms. This provides a clearcut demonstration of the leading correction of relative order Z-13 which, with effects of relative order Z-23, gives an accurate account of the binding energy over a wide range of Z values. There is a brief discussion of relativistic corrections, with results that are somewhat at variance with previous numerical estimates.

Julian Schwinger

1980-11-01T23:59:59.000Z

293

L I NATIONAL' LEAD COMPANY OF OHIO  

Office of Legacy Management (LM)

L L I NATIONAL' LEAD COMPANY OF OHIO tJw HEALTH AND SAFETY DI"ISION - ANALITICIL DEPT. ANALYTICAL DATA SHEET _I . . NATIONAL LEAD COMPANY O F OHIO HEALTH AND SAFETY DIY1SION - ANALYTICAL DEPT. ANALYTICAL DATA SHEET NATIONA-i LEn' D COMPANY OF OHIO HEALTH AND SAFETY Dl"lSlDN - m4ALITICAL DEPT. ANALYTICAL DATA SHEET NO. I DlSTRlBUTlON OF COPIES I I A,w,lytlc.al Loboratorr (RBCORD COPI) 2 Induswlol Hvalen. B Rodhtlon Dept. 3 1 Water Trsotmmt Plant c=.z w&w hnp,., Only, - . _. NATIONAL LEAD COMPANY OF OHIO HEALiH ANO SAFETY OIVISIOH - w4ALYTICAL DEPT. ANALYTICAL DATA SHEET INDUSTRIAL, HYGlENE AND RADIATION DEPT. 1 ANALYTICAL CHEMISTRY SECTION i. H. NO. IHPLEN0S.i . 7 RO"Te TO, D.TB RECEIVED, B", 464 9 - sD6:LzTEo, lB"' S/24/61 I DP

294

Calcium Film Based Testing of Edge-Seal Materials for Photovoltaic Applications (Presentation)  

SciTech Connect (OSTI)

Because of the sensitivity of some photovoltaic devices to moisture-induced corrosion, they are packaged using impermeable front- and back-sheets with an edge seal to prevent moisture ingress. Evaluation of edge seal materials can be difficult because of the low permeation rates involved and/or non-Fickian behavior. Here, using a Ca film deposited on a glass substrate, we demonstrate the evaluation of edge seal materials in a manner that effectively duplicates their use in a photovoltaic application and compare the results with standard methods for measuring water vapor transport. We demonstrate how moisture permeation data from polymer films can be used to estimate moisture ingress rates and compare the results of these two methods. Encapsulant materials were also evaluated for comparison and to highlight the need for edge seals. Of the materials studied, dessicant-filled polyisobutene materials demonstrate by far the best potential to keep moisture out for a 20 to 30 year lifetime.

Kempe, M.; Dameron, A.; Reese, M.

2011-04-01T23:59:59.000Z

295

Calcium Based Test Method for Evaluation of Photovoltaic Edge-Seal Materials (Presentation)  

SciTech Connect (OSTI)

Because of the sensitivity of some photovoltaic devices to moisture-induced corrosion, they are packaged using impermeable front- and back-sheets with an edge seal to prevent moisture ingress. Evaluation of edge seal materials can be difficult because of the low permeation rates involved and/or non-Fickian behavior. Here, using a Ca film deposited on a glass substrate, we demonstrate the evaluation of edge seal materials in a manner that effectively duplicates their use in a photovoltaic application and compare the results with standard methods for measuring water vapor transport. We demonstrate how moisture permeation data from polymer films can be used to estimate moisture ingress rates and compare the results of these two methods. Encapsulant materials were also evaluated for comparison and to highlight the need for edge seals. Of the materials studied, dessicant-filled polyisobutene materials demonstrate by far the best potential to keep moisture out for a 20 to 30 year lifetime.

Kempe, M.; Dameron, A.; Reese, M.

2011-02-01T23:59:59.000Z

296

Edge transport barrier studies on the Alcator C-Mod tokamak  

E-Print Network [OSTI]

Edge transport barriers (ETBs) in tokamak plasmas accompany transitions from low confinement (L-mode) to high confinement (H-mode) and exhibit large density and temperature gradients in a narrow pedestal region near the ...

Hughes, Jerry W. (Jerry Wayne), 1975-

2005-01-01T23:59:59.000Z

297

Observation of Edge Instability Limiting the Pedestal Growth in Tokamak Plasmas  

E-Print Network [OSTI]

With fusion device performance hinging on the edge pedestal pressure, it is imperative to experimentally understand the physical mechanism dictating the pedestal characteristics and to validate and improve pedestal predictive ...

Diallo, A.

298

IBEX satellite finds ribbon-like structure at edge of heliosphere  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

IBEX satellite IBEX satellite finds ribbon-like structure at edge of heliosphere The NASA IBEX mission has sent back data that indicates a "noodle soup" of solar material has...

299

Roughening due to edge diffusion for irreversible aggregation C. Ratsch,1,2,  

E-Print Network [OSTI]

Roughening due to edge diffusion for irreversible aggregation C. Ratsch,1,2, * M. C. Wheeler,2 for epitaxial growth enhances surface roughening for a model of irreversible aggregation. The reason

Ratsch, Christian

300

Augmentation of Power Output of Axisymmetric Ducted Wind Turbines by Porous Trailing Edge Disks  

E-Print Network [OSTI]

This paper presents analytical and experimental results that demonstrated that the power output from a ducted wind turbine can be dramatically increased by the addition of a trailing edge device such as a porous disk. In ...

widnall, sheila

2014-06-30T23:59:59.000Z

Note: This page contains sample records for the topic "worn leading edge" 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.


301

Structural analysis of sulfur in natural rubber using X-ray absorption near-edge spectroscopy  

Science Journals Connector (OSTI)

The opportunity to employ X-ray absorption near-edge spectroscopy techniques to investigate the alteration of the structural properties of sulfur in various vulcanized rubber sheets is presented.

Pattanasiriwisawa, W.

2008-07-11T23:59:59.000Z

302

Want to Work on cutting-edge space exploration technology at honeybee robotics? Summer 2012 Internship  

E-Print Network [OSTI]

Want to Work on cutting-edge space exploration technology at honeybee robotics? Summer 2012 during the 10-week, full-time internship at the Honeybee Robotics facility in New York City (Manhattan

Manning, Sturt

303

Edge Stability and Transport Control with Resonant Magnetic Perturbations in Collisionless Tokamak Plasmas  

SciTech Connect (OSTI)

A critical issue for fusion plasma research is the erosion of the first wall of the experimental device due to impulsive heating from repetitive edge magneto-hydrodynamic (MHD) instabilities known as 'edge-localized modes' (ELMs). Here, we show that the addition of small resonant magnetic field perturbations completely eliminates ELMs while maintaining a steady-state high-confinement (H-mode) plasma. These perturbations induce a chaotic behavior in the magnetic field lines, which reduces the edge pressure gradient below the ELM instability threshold. The pressure gradient reduction results from a reduction in particle content of the plasma, rather than an increase in the electron thermal transport. This is inconsistent with the predictions of stochastic electron heat transport theory. These results provide a first experimental test of stochastic transport theory in a highly rotating, hot, collisionless plasma and demonstrate a promising solution to the critical issue of controlling edge instabilities in fusion plasma devices.

Evans, T E; Moyer, R A; Burrell, K H; Fenstermacher, M E; Joseph, I; Leonard, A W; Osborne, T H; Porter, G D; Schaffer, M J; Snyder, P B; Thomas, P R; Watkins, J G; West, W P

2006-06-13T23:59:59.000Z

304

Delivering cutting edge OOP curriculum in a time of resource reduction (without sacrificing quality)  

Science Journals Connector (OSTI)

Consistently delivering cutting edge OOP curriculum and instruction in the computer science discipline in times of economic constraint is an on-going challenge. This paper outlines the modifications made by one institution to the curriculum and delivery ...

Sharon N. Vest; David D. Langan

2003-06-01T23:59:59.000Z

305

Edge tunneling and transport in non-abelian fractional quantum Hall systems  

E-Print Network [OSTI]

Several aspects of tunneling at the edge of a fractional quantum Hall (FQH) state are studied. Most examples are given for the non- abelian filling fraction ? = 5 2 Moore-Read Pfaffian state. For tunneling between opposite ...

Overbosch, Bas Jorn

2008-01-01T23:59:59.000Z

306

Colour Constancy from Both Sides of the Shadow Edge Stuart E. Lynch  

E-Print Network [OSTI]

the basis of a novel solution strategy: an illumina- tion edge in an image provides a powerful cue. Given that the spectrum of light can vary (i.e. daylight ­ blue, sunlight ­ yellow), the observed

Drew, Mark S.

307

Effects of trailing edge flap dynamic deployment on blade-vortex interactions  

E-Print Network [OSTI]

A theoretical and experimental investigation is undertaken to determine the effects of an actively deployable trailing edge flap on the disturbances created during blade-vortex interactions (BVI). The theoretical model consists of an unsteady panel...

Nelson, Carter T.

2012-06-07T23:59:59.000Z

308

PISCES Program: Plasma-materials interactions and edge-plasma physics research  

SciTech Connect (OSTI)

This program investigates and characterizes the behavior of materials under plasma bombordment, in divertor regions. The PISCES facility is used to study divertor and plasma edge management concepts (in particular gas target divertors), as well as edge plasma turbulence and transport. The plasma source consists of a hot LaB[sub 6] cathode with an annular, water-cooled anode and attached drift tube. This cross sectional area of the plasma can be adjusted between 3 and 10 cm. A fast scanning diagnostic probe system was used for mapping plasma density profiles during biased limiter and divertor simulation experiments. Some experimental data are given on: (1) materials and surface physics, (2) edge plasma physics, and (3) a theoretical analysis of edge plasma modelling.

Conn, R.W.; Hirooka, Y.

1992-07-01T23:59:59.000Z

309

Imagery Randomized Block Analysis (IRBA) Applied to the Verification of Cloud Edge Detectors  

Science Journals Connector (OSTI)

A recently developed statistical method is described for evaluating the effectiveness of numerical models. This method is applied to the verification of the effectiveness of satellite imagery cloud edge detectors. Digital satellite data are ...

Frank P. Kelly; Thomas H. Vonder Haar; Paul W. Mielke Jr.

1989-08-01T23:59:59.000Z

310

Electric field control of spin-resolved edge states in graphene quantum nanorings  

SciTech Connect (OSTI)

The electric-field effect on the electronic and magnetic properties of triangular and hexagonal graphene quantum rings with zigzag edge termination is investigated by means of the single-band tight-binding Hamiltonian and the mean-field Hubbard model. It is shown how the electron and spin states in the nanoring structures can be manipulated by applying an electric field. We find different spin-depolarization behaviors with variation of electric field strength due to the dependence of spin densities on the shapes and edges of this kind of nanorings. In the case of triangular quantum rings, the magnetization on the inner and outer edges can be selectively tuned and the spin states depolarize gradually as the field strength is increased, while in the case of hexagonal nanorings, the transverse electric field reduces the magnetic moments on both inner and outer edges symmetrically and rapidly.

Farghadan, R., E-mail: rfarghadan@kashanu.ac.ir [Department of Physics, University of Kashan, Kashan (Iran, Islamic Republic of); Saffarzadeh, A. [Department of Physics, Payame Noor University, P.O. Box 19395-3697, Tehran (Iran, Islamic Republic of); Department of Physics, Simon Fraser University, Burnaby, British Columbia V5A 1S6 (Canada)

2014-05-07T23:59:59.000Z

311

Final Technical Report: Global Field Aligned Mesh and Gyrokinetic Field Solver in a Tokamak Edge Geometry  

SciTech Connect (OSTI)

This project was a collaboration between researchers at the California Institute of Technology and the University of California, Irvine to investigate the utility of a global field-aligned mesh and gyrokinetic field solver for simulations of the tokamak plasma edge region. Mesh generation software from UC Irvine was tested with specific tokamak edge magnetic geometry scenarios and the quality of the meshes and the solutions to the gyrokinetic Poisson equation were evaluated.

Cummings, Julian C. [California Institute of Technology

2013-05-15T23:59:59.000Z

312

Asian anthropogenic lead contamination in the North Pacific Ocean as evidenced by stable lead isotopic compositions  

E-Print Network [OSTI]

and North Central Pacific Ocean. Deep Sea Res. Part II Top.Lead Within the Northwest Pacific Ocean Evidenced by Leadventilation flux of the Pacific Ocean. J. Geophys. Res. 106(

Zurbrick, Cheryl Marie

2014-01-01T23:59:59.000Z

313

Anthropogenic lead dynamics in the terrestrial and marine environment  

Science Journals Connector (OSTI)

...shown in gure 7, re ect the introduction and phase-out of leaded petrol. Measuring lead concentrations in ice near Camp Century, Greenland, Murozumi et al. (1969) rst observed the Arctic anthropogenic transient, with lead concentrations increas...

2002-01-01T23:59:59.000Z

314

Lead-Free Solders: Focus on Fundamentals, Reliability, and Applications  

Science Journals Connector (OSTI)

Although lead-free solders have been adopted by much of the commercial electronics industry, the implementation of lead-free processes still faces some challenges. The performance of lead-free solder joints in hi...

Babak Arfaei

2014-10-01T23:59:59.000Z

315

Lead in Your Drinking Water Lead (Pb) is an extremely toxic heavy metal that unfortunately occurs widely in  

E-Print Network [OSTI]

Lead in Your Drinking Water Lead (Pb) is an extremely toxic heavy metal that unfortunately occurs of metallic lead in the soil (4) Drinking water ­ water as it leaves the treatment plant has no lead;Common metals used for the supply pipe are lead, copper and galvanized iron. Also in the system

Maynard, J. Barry

316

Electrochemical Sensors for the Detection of Lead and Other Toxic...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sensors for the Detection of Lead and Other Toxic Heavy Metals: The Next Generation of Personal Exposure Electrochemical Sensors for the Detection of Lead and Other Toxic Heavy...

317

Scheibe named lead scientist for EMSL computing | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

lead scientist for EMSL computing He will oversee Multiscale Modeling and High Performance Computing Tim Scheibe EMSL has selected Tim Scheibe as lead scientist for Multiscale...

318

Inspiration from world-class scientists leads Patricia Langan...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

leads student to nanoscience Inspiration from world-class scientists leads Patricia Langan to nanoscience Graduate research assistant discovered her passion while interning as...

319

Anthropogenic Lead Emissions in the Ocean: The Evolving Global Experiment  

E-Print Network [OSTI]

We review the current distribution of lead and lead isotopes in the ocean with regard to the evolving pattern of human emissions during the past decades and centuries.

Lee, Jong-Mi

320

AVTA: 2010 Honda Civic HEV with Experimental Ultra Lead Acid...  

Broader source: Energy.gov (indexed) [DOE]

2010 Honda Civic HEV with Experimental Ultra Lead Acid Battery Testing Results AVTA: 2010 Honda Civic HEV with Experimental Ultra Lead Acid Battery Testing Results The Vehicle...

Note: This page contains sample records for the topic "worn leading edge" 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

Combined Heat and Power System Enables 100% Reliability at Leading...  

Broader source: Energy.gov (indexed) [DOE]

Enables 100% Reliability at Leading Medical Campus - Case Study, 2013 Combined Heat and Power System Enables 100% Reliability at Leading Medical Campus - Case Study, 2013 Thermal...

322

Hydrogen diffusion in Lead Zirconate Titanate and Barium Titanate...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

diffusion in Lead Zirconate Titanate and Barium Titanate. Hydrogen diffusion in Lead Zirconate Titanate and Barium Titanate. Abstract: Hydrogen is a potential clean-burning,...

323

Cambodia-Low Emissions Asian Development (LEAD) Program | Open...  

Open Energy Info (EERE)

in up to 11 partner countries: Bangladesh, Cambodia, India, Indonesia, Laos, Malaysia, Nepal, Papua New Guinea, Philippines, Thailand, and Vietnam. USAID LEAD Factsheet LEAD Fact...

324

University of Maryland Wins Architecture Prize, Pulls Into Lead...  

Broader source: Energy.gov (indexed) [DOE]

Maryland Wins Architecture Prize, Pulls Into Lead in 2011 Solar Decathlon University of Maryland Wins Architecture Prize, Pulls Into Lead in 2011 Solar Decathlon September 28, 2011...

325

Is graphene on the edge of being a topological insulator?  

E-Print Network [OSTI]

We show that, at sufficiently large strength of the long-range Coulomb interaction, a mass term breaking parity (so-called Haldane mass) is dynamically generated in the many-body theory of Dirac fermions describing the graphene layer. While the tendency towards chiral symmetry breaking is stronger than for the dynamical breakdown of parity at spatial dimension D > 2, we find that the situation is reversed at D = 2. The need to regularize the many-body theory in a gauge-invariant manner (taking the limit D = 2 - \\epsilon) is what leads to the dominance of the parity-breaking pattern in graphene. We compute the critical coupling for the generation of a parity-breaking mass from the finite radius of convergence of the ladder series supplemented with electron self-energy corrections, finding a value quite close to the effective interaction strength for graphene in vacuum after including Fermi velocity renormalization and static RPA screening of the Coulomb interaction.

J. Gonzalez

2012-11-16T23:59:59.000Z

326

Lead Slowing Down Spectrometer Research Plans  

SciTech Connect (OSTI)

The MPACT-funded Lead Slowing Down Spectrometry (LSDS) project has been evaluating the feasibility of using LSDS techniques to assay fissile isotopes in used nuclear fuel assemblies. The approach has the potential to provide considerable improvement in the assay of fissile isotopic masses in fuel assemblies compared to other non-destructive techniques in a direct and independent manner. The LSDS collaborations suggests that the next step to in empirically testing the feasibility is to conduct measurements on fresh fuel assemblies to understand investigate self-attenuation and fresh mixed-oxide (MOX) fuel rodlets so we may betterto understand extraction of masses for 235U and 239Pu. While progressing toward these goals, the collaboration also strongly suggests the continued development of enabling technology such as detector development and algorithm development, thatwhich could provide significant performance benefits.

Warren, Glen A.; Kulisek, Jonathan A.; Gavron, Victor; Danon, Yaron; Weltz, Adam; Harris, Jason; Stewart, T.

2013-03-22T23:59:59.000Z

327

Synthesis and regeneration of lead (IV) acetate  

SciTech Connect (OSTI)

Lead acetate [Pb(O{sub 2}CMe){sub 4}] was easily synthesized from a warm solution of Pb{sub 3}O{sub 4}, HO{sub 2}CMe and O(OCMe){sub 2} following literature preparations when the appropriate measures to minimize water contamination were followed. Furthermore, Pb(O{sub 2}CMe){sub 4} which has been decomposed (evidenced by the appearance of a purple color due to oxidation) can be regenerated using a similar preparatory route. Introduction of Pb(O{sub 2}CMe){sub 4} from the two routes outlined above into the IMO process for production of PZT thin films gave films with comparable ferroelectric properties to commercially available Pb(O{sub 2}CMe){sub 4} precursors. However, the freshly synthesized material yields PZT films with better properties compared to the recycled material.

Boyle, T.J.; Al-Shareef, H.N.; Moore, G.J. [Sandia National Labs., Albuquerque, NM (United States). Advanced Materials Lab.

1996-11-01T23:59:59.000Z

328

Comparison of leading and next-to-leading logarithmic electroweak corrections to Higgs production  

E-Print Network [OSTI]

Using soft-collinear effective theory, the leading-log radiative electroweak corrections are written in a closed and analytical form for the hadronic cross section of Higgs production through vector boson fusion, qq->qqH, one of the most promising channels for studying the Higgs boson at the LHC. The simple leading-log resummation is compared with a full next-to-leading-log calculation, and its accuracy is found to be of order 1% up to 10 TeV, i.e. better than the accuracy of PDFs. Corrections are found to be larger than predicted by one-loop fixed order approximations at LHC energies. The method provides a simple way of incorporating the electroweak corrections in software packages, improving the accuracy of simulations.

Fabio Siringo

2013-07-29T23:59:59.000Z

329

Comparison of leading and next-to-leading logarithmic electroweak corrections to Higgs production  

E-Print Network [OSTI]

Using soft-collinear effective theory, the leading-log radiative electroweak corrections are written in a closed and analytical form for the hadronic cross section of Higgs production through vector boson fusion, qq->qqH, one of the most promising channels for studying the Higgs boson at the LHC. The simple leading-log resummation is compared with a full next-to-leading-log calculation, and its accuracy is found to be of order 1% up to 10 TeV, i.e. comparable with the accuracy of PDFs. Corrections are found to be larger than predicted by one-loop fixed order approximations at LHC energies. The method provides a simple way of incorporating the electroweak corrections in software packages, improving the accuracy of simulations.

Siringo, Fabio

2013-01-01T23:59:59.000Z

330

Lead Poisoning: A Preventable Childhood Disease of the Slums  

Science Journals Connector (OSTI)

...complications prevention & control Paint poisoning Socioeconomic Factors...han-dled better and more cheaply by robots. "If manned planetary exploration...the lead from chipping leaded paint in old buildings. Lead poisoning...objects, such as chips of leaded paint, even if they are not hungry-a...

Mark W. Oberle

1969-09-05T23:59:59.000Z

331

Better Buildings Neighborhood Program: Honeymoons Lead to Upgrades in  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Honeymoons Honeymoons Lead to Upgrades in Western Vermont to someone by E-mail Share Better Buildings Neighborhood Program: Honeymoons Lead to Upgrades in Western Vermont on Facebook Tweet about Better Buildings Neighborhood Program: Honeymoons Lead to Upgrades in Western Vermont on Twitter Bookmark Better Buildings Neighborhood Program: Honeymoons Lead to Upgrades in Western Vermont on Google Bookmark Better Buildings Neighborhood Program: Honeymoons Lead to Upgrades in Western Vermont on Delicious Rank Better Buildings Neighborhood Program: Honeymoons Lead to Upgrades in Western Vermont on Digg Find More places to share Better Buildings Neighborhood Program: Honeymoons Lead to Upgrades in Western Vermont on AddThis.com... Better Buildings Residential Network Progress

332

Alternative Fuels Data Center: San Diego Leads in Promoting EVs  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

San Diego Leads in San Diego Leads in Promoting EVs to someone by E-mail Share Alternative Fuels Data Center: San Diego Leads in Promoting EVs on Facebook Tweet about Alternative Fuels Data Center: San Diego Leads in Promoting EVs on Twitter Bookmark Alternative Fuels Data Center: San Diego Leads in Promoting EVs on Google Bookmark Alternative Fuels Data Center: San Diego Leads in Promoting EVs on Delicious Rank Alternative Fuels Data Center: San Diego Leads in Promoting EVs on Digg Find More places to share Alternative Fuels Data Center: San Diego Leads in Promoting EVs on AddThis.com... Sept. 3, 2011 San Diego Leads in Promoting EVs W atch how San Diego is leading the way in promoting electric vehicles. For information about this project, contact San Diego Regional Clean Cities

333

Lead(ii) Detection An Exceptionally Selective Lead(ii)-Regulatory  

E-Print Network [OSTI]

-spore- forming bacillus that flourishes in millimolar concentrations of toxic heavy metals.[12] It is the only that responds to lead(ii) ions with a high selectivity over other heavy metal ions. This has not been achieved developed for the detection of other small molecules, but with limited success for heavy metal ions

He, Chuan

334

Lead Safety Awareness This Bulletin provides information on the safe handling of lead  

E-Print Network [OSTI]

per cubic meter of air (50 ug/m 3 ), averaged over an 8-hour work-day. For potentially higher exposure necessary, seal off the work area with 6-millimeter plastic and wear properly fitting High Efficiency Particulate Air (HEPA) respirator and protective clothing and equipment. · Post warning signs where lead

335

Lead Defendant Cases Filed Injunctions - Remands  

Broader source: Energy.gov (indexed) [DOE]

NEPA Cases Filed in 2011 2011 NEPA Case Dispositions NEPA Cases Filed in 2011 2011 NEPA Case Dispositions Lead Defendant Cases Filed Injunctions - Remands Judgment for defendant 79 ARMY-USACE 3 2 Dismissal w/o settlement 20 DHS-USCG 1 1 Settlement 18 DOD 0 0 Adverse dispositions: 29 DOE-Energy 2 0 TRO 0 DOE-FERC 0 0 Preliminary Injunction 5 DOE-NNSA 0 0 Permanent Injunction 3 DOI-BIA 0 0 Remand 21 DOI-BLM 22 8 DOI-BOEM 0 0 Basis for 2011 NEPA Dispositions DOI-BOR 1 2 Jurisdictional - P prevailed 2 DOI-FWS 4 2 Jurisdictional - D prevailed 20 DOI-NPS 4 0 NEPA - Not required 4 DOJ 0 0 NEPA - Is required 4 DOS 0 0 CE - Adequate 5 DOT-FMCSA 1 0 CE - Not Adequate 5 DOT-FAA 3 1 EA - Adequate* 24 DOT-FHWA 14 2 EA - Not Adequate* 5 DOT-FTA 2 0 EIS - Adequate* 32 DOT-STB 0 1 EIS - Not Adequate* 15

336

Lead removal by using carbon nanotubes  

Science Journals Connector (OSTI)

Exposure to lead (Pb) can cause anemia, diseases of the liver and kidneys, brain damage and ultimately death. For these reasons, heavy metals must be removed as much as possible from water. The removal of Pb (II) ions from aqueous solution using carbon nanotubes (CNT) as the adsorbent was investigated. The effects of pH were studied at 25C. Batch mode adsorption study has revealed that the removal of Pb (II) ions was maximum (85% removal) at pH 5 and achieved 83% removal at 40 mg/L of CNTs. The adsorption continuously increased in the pH range of 3-5, beyond which the adsorption could not be carried out due to the precipitation of metal. This study was also supported by characterisation of CNTs using FESEM. The characterisation suggested that at acidic condition (pH 5), the surfaces of CNTs are more aligned and well-integrated compared to CNTs at different pHs. Finally, it can be concluded that CNTs could be a potential adsorbent for the removal of Pb from wastewater.

A.A. Muataz; M. Fettouhi; A. Al-Mammum; N. Yahya

2009-01-01T23:59:59.000Z

337

Cutting-Edge Savannah River Site Project Avoids Millions in Costs, Removes  

Broader source: Energy.gov (indexed) [DOE]

Cutting-Edge Savannah River Site Project Avoids Millions in Costs, Cutting-Edge Savannah River Site Project Avoids Millions in Costs, Removes Chemical Solvents from Underground: Project avoided costs totaling more than $15 million, removed tons of chemical solvents from beneath the Savannah River Site Cutting-Edge Savannah River Site Project Avoids Millions in Costs, Removes Chemical Solvents from Underground: Project avoided costs totaling more than $15 million, removed tons of chemical solvents from beneath the Savannah River Site June 13, 2012 - 12:00pm Addthis Harrel McCray, left, and Joey Clark, employees with SRS management and operations contractor, Savannah River Nuclear Solutions, stand by an extensive SRS cleanup system that safely and successfully rid the site of more than 33,000 gallons of non-radioactive chemical

338

Secretary Chu Announces New Investments in Cutting-Edge Wind Energy  

Broader source: Energy.gov (indexed) [DOE]

New Investments in Cutting-Edge Wind Energy New Investments in Cutting-Edge Wind Energy Research Facilities Secretary Chu Announces New Investments in Cutting-Edge Wind Energy Research Facilities October 15, 2009 - 12:00am Addthis Washington, DC - U.S. Energy Secretary Steven Chu announced new investments today in three university-led wind energy research facilities that will enhance the United States' leadership role in testing and producing the most advanced and efficient wind turbines in the world. The funding is from the American Recovery and Reinvestment Act, and the research will focus on improving both land-based and offshore wind generation. "Wind power has the potential to provide 20 percent of our electricity and create hundreds of thousands of jobs," said Secretary Chu. "We need to

339

New 100Gbps Network Will Keep America on Cutting Edge of Innovation |  

Broader source: Energy.gov (indexed) [DOE]

100Gbps Network Will Keep America on Cutting Edge of Innovation 100Gbps Network Will Keep America on Cutting Edge of Innovation New 100Gbps Network Will Keep America on Cutting Edge of Innovation November 15, 2011 - 11:22am Addthis Initially the network will connect the three Energy Department unclassified supercomputing centers: the National Energy Research Scientific Computing Center (NERSC) at Berkeley Lab, Oak Ridge Leadership Computing Facility (OLCF), and Argonne Leadership Computing Facility (ALCF), as well as the Manhattan Landing International Exchange Point (MANLAN). Initially the network will connect the three Energy Department unclassified supercomputing centers: the National Energy Research Scientific Computing Center (NERSC) at Berkeley Lab, Oak Ridge Leadership Computing Facility (OLCF), and Argonne Leadership Computing Facility (ALCF), as well as the

340

In Carpet Capitol of the World, Carpet Edging is Green Fuel | Department of  

Broader source: Energy.gov (indexed) [DOE]

In Carpet Capitol of the World, Carpet Edging is Green Fuel In Carpet Capitol of the World, Carpet Edging is Green Fuel In Carpet Capitol of the World, Carpet Edging is Green Fuel June 2, 2010 - 4:55pm Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE Forget solar or wind. In the carpet capitol of the world, Shaw Industries, Inc. in Dalton, Ga., is sticking to what it knows best: carpet. The flooring company sends a good portion of the trimmings from its carpet-producing facility to its waste-to-energy plant, which turns the material into steam by heating it with extreme temperatures to power the plant's dye-processing machines. And soon, another Shaw facility will have a plant just like it, meaning all the trimmings that come out the company's eight production facilities-and some from other companies'

Note: This page contains sample records for the topic "worn leading edge" 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

At Solar System's Edge, There be...Bubbles? - NERSC Science News, June 9,  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

At Solar System's At Solar System's Edge, There be...Bubbles? At Solar System's Edge, There be...Bubbles? Voyagers, Computer Models Find Surprising Magnetic Froth June 9, 2011 | Tags: Astrophysics, Franklin, Fusion Energy, Fusion Energy Sciences (FES), Hopper Margie Wylie, mwylie@lbl.gov, +1 510 486 7421 This animated computer simulation shows how magnetic bubbles form at the edge of our solar system. It was created on NERSC's "Franklin" supercomputer using 8,192 processor cores simultaneously running for 20 hours. (Credit: James F. Drake) NASA's Voyager probes have reached the end of our solar system where they've found neither giants nor dragons, but something nearly as surprising-a turbulent froth of magnetic bubbles. Using new computer models to analyze Voyager data, scientists computing at

342

Cutting-Edge Savannah River Site Project Avoids Millions in Costs, Removes  

Broader source: Energy.gov (indexed) [DOE]

Cutting-Edge Savannah River Site Project Avoids Millions in Costs, Cutting-Edge Savannah River Site Project Avoids Millions in Costs, Removes Chemical Solvents from Underground: Project avoided costs totaling more than $15 million, removed tons of chemical solvents from beneath the Savannah River Site Cutting-Edge Savannah River Site Project Avoids Millions in Costs, Removes Chemical Solvents from Underground: Project avoided costs totaling more than $15 million, removed tons of chemical solvents from beneath the Savannah River Site June 13, 2012 - 12:00pm Addthis Harrel McCray, left, and Joey Clark, employees with SRS management and operations contractor, Savannah River Nuclear Solutions, stand by an extensive SRS cleanup system that safely and successfully rid the site of more than 33,000 gallons of non-radioactive chemical

343

New Energy Star Initiative Recognizes Cutting-Edge Products with Highest  

Broader source: Energy.gov (indexed) [DOE]

Star Initiative Recognizes Cutting-Edge Products with Star Initiative Recognizes Cutting-Edge Products with Highest Energy Efficiency New Energy Star Initiative Recognizes Cutting-Edge Products with Highest Energy Efficiency July 14, 2011 - 12:00am Addthis WASHINGTON - The U.S. Environmental Protection Agency (EPA) and U.S. Department of Energy (DOE) today are announcing for the first time products recognized as the most energy-efficient in their categories among those that have earned the Energy Star label. This pilot program is part of Energy Star's overall commitment to protect people's health and the environment by encouraging energy efficiency. The "Most Efficient" initiative also continues Energy Star's work to provide consumers with the best efficiency information so they can make investments that will lower

344

Small Businesses Nationwide Begin Work on Cutting-Edge Innovative Research  

Broader source: Energy.gov (indexed) [DOE]

Small Businesses Nationwide Begin Work on Cutting-Edge Innovative Small Businesses Nationwide Begin Work on Cutting-Edge Innovative Research Projects Small Businesses Nationwide Begin Work on Cutting-Edge Innovative Research Projects February 21, 2012 - 12:18pm Addthis Washington, D.C. - Energy Secretary Steven Chu today announced that with support from the Department of Energy, 142 small businesses around the nation are starting work this week on 180 innovative research projects ranging from designing better wind turbines to developing a chemical-free approach to killing bacteria in power plant cooling water and from developing instruments to improve nanomaterials to making new coatings to improve the efficiency of gas turbines. These grants to small businesses - totaling $26.4 million - are developing new energy technologies that

345

Cutting Edge Vehicles Take Center Stage at Texas Green Racing Event |  

Broader source: Energy.gov (indexed) [DOE]

Cutting Edge Vehicles Take Center Stage at Texas Green Racing Event Cutting Edge Vehicles Take Center Stage at Texas Green Racing Event Cutting Edge Vehicles Take Center Stage at Texas Green Racing Event September 27, 2013 - 4:00pm Addthis Team Muscle Milk won the American Le Mans Series race at the Circuit of the Americas in Austin, Texas last weekend. The Honda ARX-03c runs on E10 fuel. | Photo courtesy of Rizzo Motorsports Images Team Muscle Milk won the American Le Mans Series race at the Circuit of the Americas in Austin, Texas last weekend. The Honda ARX-03c runs on E10 fuel. | Photo courtesy of Rizzo Motorsports Images A Corvette running on E85 fuel won the GT class at Circuit of the Americas. | Photo courtesy of Rizzo Motorsports Images A Corvette running on E85 fuel won the GT class at Circuit of the Americas.

346

Summary World Solar Energy Data (from World on the Edge) | OpenEI  

Open Energy Info (EERE)

Solar Energy Data (from World on the Edge) Solar Energy Data (from World on the Edge) Dataset Summary Description This dataset presents summary information related to world solar energy. It is part of a supporting dataset for the book World On the Edge: How to Prevent Environmental and Economic Collapse by Lester R. Brown, available from the Earth Policy Institute. This solar energy dataset includes the following: World solar PV production (1975 - 2009); Annual solar PV production by country (1995 - 2009); Solar PV production in the US (1976 - 2009); World cumulative solar PV installations (1998 - 2009); Annual solar PV installations in selected countries and the world (1998 - 2009); Cumulative solar PV installations in the US (1998 - 2009) and EU (1998 - 2009); World installed concentrating solar thermal power capacity (1980 - 2009); solar water and space heating area in selected countries (2008) and top ten countries (2008).

347

Summary World Oil Data (from World on the Edge) | OpenEI  

Open Energy Info (EERE)

Oil Data (from World on the Edge) Oil Data (from World on the Edge) Dataset Summary Description This dataset presents summary information related to world oil. It is part of a supporting dataset for the book World On the Edge: How to Prevent Environmental and Economic Collapse by Lester R. Brown, available from the Earth Policy Institute. This world oil dataset includes the following data: World oil production (1950 - 2009): Top 20 producing countries (2009); Oil production in U.S. (1900 - 2009); Oil consumption in U.S. (950 - 2010); Oil consumption in China (1965 - 2009); Oil consumption in E.U. (1965 - 2009); Top 20 oil importing countries (2009); World's 20 largest oil discoveries; Real price of gasoline (2007); Retail gas prices by country (2008); and fossil fuel consumption subsidies (2009).

348

EM Launches Revamped Website: New cutting-edge platform with sleek  

Broader source: Energy.gov (indexed) [DOE]

Launches Revamped Website: New cutting-edge platform with sleek Launches Revamped Website: New cutting-edge platform with sleek appearance focuses on ease-of-use EM Launches Revamped Website: New cutting-edge platform with sleek appearance focuses on ease-of-use January 7, 2013 - 12:00pm Addthis A screenshot of the newly revamped EM website. A screenshot of the newly revamped EM website. EM's previous website EM's previous website A screenshot of the newly revamped EM website. EM's previous website WASHINGTON, D.C. - EM entered 2013 with a bold transition to a more user-friendly public website, http://energy.gov/em. EM launched the redesigned site after an extensive effort to recreate its old EM web pages and provide a modern Internet experience for website visitors. Based on Energy.gov's fresh innovative appearance and effective

349

In Carpet Capitol of the World, Carpet Edging is Green Fuel | Department of  

Broader source: Energy.gov (indexed) [DOE]

In Carpet Capitol of the World, Carpet Edging is Green Fuel In Carpet Capitol of the World, Carpet Edging is Green Fuel In Carpet Capitol of the World, Carpet Edging is Green Fuel June 2, 2010 - 4:55pm Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE Forget solar or wind. In the carpet capitol of the world, Shaw Industries, Inc. in Dalton, Ga., is sticking to what it knows best: carpet. The flooring company sends a good portion of the trimmings from its carpet-producing facility to its waste-to-energy plant, which turns the material into steam by heating it with extreme temperatures to power the plant's dye-processing machines. And soon, another Shaw facility will have a plant just like it, meaning all the trimmings that come out the company's eight production facilities-and some from other companies'

350

Physicist John Schmidt, designer of cutting-edge fusion facilities, dies at  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Physicist John Schmidt, designer of cutting-edge fusion facilities, dies at Physicist John Schmidt, designer of cutting-edge fusion facilities, dies at 72 By John Greenwald February 15, 2013 Tweet Widget Facebook Like Google Plus One John Schmidt, 1940-2013 (Photo by Elle Starkman) John Schmidt, 1940-2013 Physicist John Schmidt, whose profound and wide-ranging contributions to the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) made him a highly respected leader in the worldwide quest for fusion energy, died on February 13 following a brain hemorrhage. He was 72. Schmidt won wide acclaim for heading the design of cutting-edge facilities for magnetic fusion research during a 36-year career at PPPL, from which he retired in 2005. As interim director in 1996 he led the Laboratory's successful transition from large, fusion power-producing experiments such

351

EM Launches Revamped Website: New cutting-edge platform with sleek  

Broader source: Energy.gov (indexed) [DOE]

EM Launches Revamped Website: New cutting-edge platform with sleek EM Launches Revamped Website: New cutting-edge platform with sleek appearance focuses on ease-of-use EM Launches Revamped Website: New cutting-edge platform with sleek appearance focuses on ease-of-use January 7, 2013 - 12:00pm Addthis A screenshot of the newly revamped EM website. A screenshot of the newly revamped EM website. EM's previous website EM's previous website A screenshot of the newly revamped EM website. EM's previous website WASHINGTON, D.C. - EM entered 2013 with a bold transition to a more user-friendly public website, http://energy.gov/em. EM launched the redesigned site after an extensive effort to recreate its old EM web pages and provide a modern Internet experience for website visitors. Based on Energy.gov's fresh innovative appearance and effective

352

DOE Awards Supercomputer Access to Cutting-Edge Projects | Department of  

Broader source: Energy.gov (indexed) [DOE]

Supercomputer Access to Cutting-Edge Projects Supercomputer Access to Cutting-Edge Projects DOE Awards Supercomputer Access to Cutting-Edge Projects December 18, 2008 - 8:51am Addthis WASHINGTON, D.C. - The U.S. Department of Energy's (DOE) Office of Science announced today that 66 projects addressing some of the greatest scientific challenges have been awarded access to some of the world's most powerful supercomputers at DOE national laboratories. The projects-competitively selected for their technical readiness and scientific merit-will advance research in key areas such as astrophysics, climate change, new materials, energy production and biology, and thereby advance U.S. competitiveness. "From understanding the makeup of our universe to protecting the quality of life here on earth, the computational science now possible using DOE's

353

The Story of a Cutting-Edge Solar Startup | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

The Story of a Cutting-Edge Solar Startup The Story of a Cutting-Edge Solar Startup The Story of a Cutting-Edge Solar Startup June 20, 2012 - 9:40am Addthis Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs What does this project do? Watch the video to learn how Alta Devices manufacturers high performance solar cells at a low cost. Alta Devices is rethinking how high performance solar cells are made. The Silicon Valley startup has taken gallium arsenide -- an expensive semiconductor material that is incredibly efficient at turning sunlight into electricity -- and developed a commercially viable processes for manufacturing it into solar modules. In 2009, Alta Devices was selected to participate in the Energy Department's SunShot Incubator program. Now in its sixth iteration,

354

Optical properties of quantum wires: Fermi-edge singularity exponents and the low-density limit  

Science Journals Connector (OSTI)

A simple many-body treatment of the Fermi-edge singularities in absorption and photoemission in quasi-one-dimensional quantum wires is presented. The problem of calculating the transition probabilities is reduced to numerically evaluating a sufficient number of determinants describing the overlap of the appropriate many-body wave functions. It is found that the edge singularity exponents can be determined from the size dependence of these determinants. The well-known connection between these exponents and the phase shifts at the Fermi surface are explicitly checked for one-dimensional quantum wires. The singular edge behavior is interpreted in terms of Friedels replacement transitions and is found to be due to a replacement transition to the bound state, a result confirmed by considering the evolution of the spectra in the low-density limit. 1996 The American Physical Society.

H. H. von Grnberg; K. P. Jain; R. J. Elliott

1996-07-15T23:59:59.000Z

355

Graphene flakes with defective edge terminations: Universal and topological aspects, and one-dimensional quantum behavior  

E-Print Network [OSTI]

Systematic tight-binding investigations of the electronic spectra (as a function of the magnetic field) are presented for trigonal graphene nanoflakes with reconstructed zigzag edges, where a succession of pentagons and heptagons, that is 5-7 defects, replaces the hexagons at the zigzag edge. For nanoflakes with such reczag defective edges, emphasis is placed on topological aspects and connections underlying the patterns dominating these spectra. The electronic spectra of trigonal graphene nanoflakes with reczag edge terminations exhibit certain unique features, in addition to those that are well known to appear for graphene dots with zigzag edge termination. These unique features include breaking of the particle-hole symmetry, and they are associated with nonlinear dispersion of the energy as a function of momentum, which may be interpreted as nonrelativistic behavior. The general topological features shared with the zigzag flakes include the appearance of energy gaps at zero and low magnetic fields due to finite size, the formation of relativistic Landau levels at high magnetic fields, and the presence between the Landau levels of edge states (the socalled Halperin states) associated with the integer quantum Hall effect. Topological regimes, unique to the reczag nanoflakes, appear within a stripe of negative energies E_b < E < 0, and along a separate feature forming a constant-energy line outside this stripe. The lower bound (E_b) specifying the energy stripe is independent of size. A main finding concerns the limited applicability of the continuous Dirac-Weyl equation, since the latter does not reproduce the special reczag features. (See also the extended abstract in the paper.)

Igor Romanovsky; Constantine Yannouleas; Uzi Landman

2012-10-17T23:59:59.000Z

356

Imaging of quantum Hall edge states under quasiresonant excitation by a near-field scanning optical microscope  

SciTech Connect (OSTI)

A high resolution mapping of quantum Hall edge states has been performed by locally creating electrons with small excess energies with a near-field scanning optical microscope in a dilution refrigerator. We have observed fine structures parallel to the edge in photovoltage signals, which appear only at low temperature. The observed fine structures near sample edges have been seen to shift inward with increase in magnetic field in accordance with Chklovskii Shklovskii, and Glazman model.

Ito, H.; Shibata, Y.; Mamyoda, S.; Ootuka, Y.; Nomura, S. [Division of Physics, University of Tsukuba, Tennodai, Tsukuba, 305-8571 (Japan); Kashiwaya, S. [National Institute of Advanced Industrial Science and Technology (AIST), Umezono, Tsukuba, 305-8568 (Japan); Yamaguchi, M.; Akazaki, T.; Tamura, H. [NTT Basic Research Laboratories, NTT Corporation, Morinosato-Wakamiya, Atsugi, 243-0198 (Japan)

2013-12-04T23:59:59.000Z

357

Advection at a randomly positioned spherical edge I = (i, j, k) = coordinates of "north pole"  

E-Print Network [OSTI]

perpendicular to edge e = E·S = w E·W + n E·N = velocity component parallel to edge F·W = (kpp + kqq - ipr - jqr - ipr - jqr) / cos cos = (k - r sin) / cos cos = F·W (F·W)2 + (E·W)2 = (F·N)2 + (E·N)2 = (F·W)2 + (F·N)2 = (E·W)2 + (E·N)2 = 1 / = W·F cos / cos = (kpp + kqq - ipr - jqr) / cos2 / = W·E / cos = (jp - iq

358

Theory of shear suppression of edge turbulence by externally driven radio-frequency waves  

Science Journals Connector (OSTI)

Here, we propose and analyze a technique for active suppression of tokamak edge turbulence. Suppression occurs due to the effects of a sheared radial electric field generated by externally driven radio-frequency waves. Plasma flow is induced by radially varying wave-driven Reynolds and magnetic stresses, and opposed by neoclassical damping. For Alfvnic flow drive, the predicted shear flow profile is determined by ion inertia and electron dissipation effects. Results indicate that a modest amount of absorbed power is required for edge-turbulence suppression. More generally, several novel results in the theory of momentum transport by electromagnetic fluctuations are presented.

G. G. Craddock and P. H. Diamond

1991-09-16T23:59:59.000Z

359

In situ tomography of femtosecond optical beams with a holographic knife-edge  

E-Print Network [OSTI]

using a grating similar to that shown in Fig. 3(a) with 160 m?? ? and 2? ?? . The discontinuity at x was scanned, and the knife-edge data was recorded by a photodiode. The waist of the Gaussian beam was found to be roughly ~2 mm, which... a distance of 100f ? cm away from the SLM, PD = photodiode power meter head, PM = power meter. The upper left inset is an example- hologram to create a 2,2 o LG beam followed by an angular knife-edge. This setup is similar in design...

Strohaber, James; Kaya, G; N, Kay; Hart, Nathan; Kolomenskii, Alexander; Paulus, Gerhard; Schuessler, Hans

2011-07-18T23:59:59.000Z

360

Macroencapsulation of lead and steel SWARF  

SciTech Connect (OSTI)

The treatability study to macroencapsulate radioactively contaminated lead and steel swarf (cuttings and/or chips)and chunks, a low level mixed waste, from the dismantlement of excess surplus uranium fuel handling and transfer casks was successful. Macroencapsulation is the land disposal restriction treatment standard for this waste form per 40 CFR 268.42 Table 3. An epoxy-based thermoset system was employed due to cracking failures of other types of thermoset systems. Bench scale tests were performed with a two-part epoxy (resin and hardener) using cast iron chips as a surrogate waste media. A two stage encapsulation process was employed in treating the swarf. Two liters of epoxy were added to a 2.8{ell} (3 qt) container of swarf under 51K Pa vacuum (-15-inch of Hg) during the first stage of the process. In this stage each individual particle or chip was wetted by epoxy and allowed to harden into an initial monolith. The second stage encapsulated the initial monolith with a secondary layer of epoxy forming a larger final monolith. By evacuating the air from the swarf and epoxy during the initial monolith encapsulation, a higher density (higher swarf to epoxy ratio) was achieved. Tensile and compressive strength tests were performed on samples and without any media (cast iron chips). The coupons were prepared from a series of monoliths featuring various mixtures ratios and vacuum levels. The tensile strength of epoxy without chips averaged 41M Pa (6000 psi) and 1.4M Pa (2000 psi) with cast iron chips. Compression strengths averaged 140M Pa (20,000 psi) without chips and 66.2M Pa (9600 psi) with cast iron chips.

Zirker, L.; Thiesen, T.; Tyson, D.; Beitel, G.

1995-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "worn leading edge" 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

Regular and irregular dynamics of spin polarized wavepackets in a mesoscopic quantum dot at the edge of topological insulator  

E-Print Network [OSTI]

The dynamics of spin-polarized wavepackets driven by periodic electric field is considered for the electrons is in a mesoscopic quantum dot formed at the edge of two-dimensional HgTe/CdTe topological insulator representing a new class of materials with Weyl massless energy spectra, where the motion of carriers is less sensitive to disorder and impurity potentials. It is found that the interplay of strongly coupled spin and charge degrees of freedom creates the regimes of both regular and irregular dynamics with certain universal properties manifested for both free and driven evolution, in the clean limit and in the presence of the moderate disorder. The weak disorder influence is predicted to be overcome by periodic driving while the moderate disorder induces the in-plane spin relaxation, leading to possibility of establishing novel types of driven evolution in nanostructures formed in the topological insulators. The dynamical properties of regular and chaotic behavior of charge and spin in these structures may be of interest for future progress in both quantum nonlinear dynamics on the nanoscale and in the applied nanoscience such as spintronics and nanoelectronics.

D. V. Khomitsky; A. A. Chubanov; A. A. Konakov

2014-08-07T23:59:59.000Z

362

Alternative Fuels Data Center: Alabama City Leads With Biodiesel and  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Alabama City Leads Alabama City Leads With Biodiesel and Ethanol to someone by E-mail Share Alternative Fuels Data Center: Alabama City Leads With Biodiesel and Ethanol on Facebook Tweet about Alternative Fuels Data Center: Alabama City Leads With Biodiesel and Ethanol on Twitter Bookmark Alternative Fuels Data Center: Alabama City Leads With Biodiesel and Ethanol on Google Bookmark Alternative Fuels Data Center: Alabama City Leads With Biodiesel and Ethanol on Delicious Rank Alternative Fuels Data Center: Alabama City Leads With Biodiesel and Ethanol on Digg Find More places to share Alternative Fuels Data Center: Alabama City Leads With Biodiesel and Ethanol on AddThis.com... July 21, 2012 Alabama City Leads With Biodiesel and Ethanol L earn how the City of Hoover uses biodiesel and ethanol to fuel municipal

363

Modulation of contact resistance between metal and graphene by controlling the graphene edge, contact area, and point defects: An ab initio study  

SciTech Connect (OSTI)

A systematic first-principles non-equilibrium Green's function study is conducted on the contact resistance between a series of metals (Au, Ag, Pt, Cu, Ni, and Pd) and graphene in the side contact geometry. Different factors such as the termination of the graphene edge, contact area, and point defect in contacted graphene are investigated. Notable differences are observed in structural configurations and electronic transport characteristics of these metal-graphene contacts, depending on the metal species and aforementioned influencing factors. It is found that the enhanced chemical reactivity of the graphene due to dangling bonds from either the unsaturated graphene edge or point defects strengthens the metal-graphene bonding, leading to a considerable contact resistance reduction for weakly interacting metals Au and Ag. For stronger interacting metals Pt and Cu, a slightly reduced contact resistance is found due to such influencing factors. However, the wetting metals Ni and Pd most strongly hybridize with graphene, exhibiting negligible dependence on the above influencing factors. This study provides guidance for the optimization of metal-graphene contacts at an atomic scale.

Ma, Bo; Wen, Yanwei, E-mail: ywwen@hust.edu.cn, E-mail: bshan@mail.hust.edu.cn [State Key Laboratory of Material Processing and Die and Mould Technology and School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China); Gong, Cheng; Cho, Kyeongjae [Department of Materials Science and Engineering, The University of Texas at Dallas, Richardson, Texas 75080 (United States); Chen, Rong [State Key Laboratory of Digital Manufacturing Equipment and Technology and School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China); Shan, Bin, E-mail: ywwen@hust.edu.cn, E-mail: bshan@mail.hust.edu.cn [State Key Laboratory of Material Processing and Die and Mould Technology and School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China); Department of Materials Science and Engineering, The University of Texas at Dallas, Richardson, Texas 75080 (United States)

2014-05-14T23:59:59.000Z

364

Edge Temperature Gradient as Intrinsic Rotation Drive in Alcator C-Mod Tokamak Plasmas  

E-Print Network [OSTI]

Intrinsic rotation has been observed in I-mode plasmas from the C-Mod tokamak, and is found to be similar to that in H mode, both in its edge origin and in the scaling with global pressure. Since both plasmas have similar ...

Rice, John E.

365

Low Velocity Boron Micro-Pellet Injector For Edge And Core Impurity Transport Measurements  

E-Print Network [OSTI]

velocities to insure penetration into the cores of high density, high temperature reactor grade plasmas at controlled penetration depths in the edge plasma. Applications involving short penetration distances and;3 required ablation rate. This paper describes a simple Low Velocity Boron Micro-Pellet Injector that has

366

Radiation dose and image quality in K-edge subtraction computed tomography of lung in vivo  

Science Journals Connector (OSTI)

Radiation dose dependency of image quality was showed in in vivo rabbit lung images with and without a contrast agent using the synchrotron-radiation-based K-edge subtraction method. Consistency of the theoretical and measured radiation dose rate values was found.

Strengell, S.

2014-10-01T23:59:59.000Z

367

he edge of a torn plastic sheet forms a complex three-dimensional fractal  

E-Print Network [OSTI]

T he edge of a torn plastic sheet forms a complex three-dimensional fractal shape. We have found to the generation of characteristic wavy shapes. We used rectangular plastic sheets pulled from the sides (in the y produce an irreversible plastic deforma- tion of the sheet and, as they are relieved, the deformed sheet

Texas at Austin. University of

368

LA-UR-01-0762 Title NAKE'MUU: VILLAGE ON THE EDGE  

E-Print Network [OSTI]

a room in the northeast section of the site that contained preserved wall plaster. Steen attempted to preserve the plaster by applying a "patching plaster" around its edges. It is unclear how old the original plaster actually is, however, an elderly resident of San Ildefonso Pueblo considered it to be recent

369

The Green's function BEM for bimaterial solids applied to edge stress concentration problems  

E-Print Network [OSTI]

The Green's function BEM for bimaterial solids applied to edge stress concentration problems M of the line forces and dislocation dipoles over its boundary. The fundamental solutions used are the Green continuity conditions there are automatically satisfied by the Green's functions. The BEM will be applied

Denda, Mitsunori "Mitch"

370

The Role of Cetaceans in the Shelf-Edge Region of the Northeastern United States  

E-Print Network [OSTI]

The Role of Cetaceans in the Shelf-Edge Region of the Northeastern United States JAMES H. W. HAIN, MARTIN A. M. HYMAN, ROBERT D. KENNEY, and HOWARD E. WINN Introduction Man has been, and continues to be, RI 02881; the present address of J. H. W. Hain is Associated Scientists at Woods Hole, Box 721, Woods

371

Simulation of a Flash Flooding Storm at the Steep Edge of the Himalayas Anil Kumar1  

E-Print Network [OSTI]

1 Simulation of a Flash Flooding Storm at the Steep Edge of the Himalayas Anil Kumar1 NASA Goddard;2 Abstract A flash flood and landslide in the Leh Valley of Jammu and Kashmir State, India, on 5-6 August model simulation validates this hypothesized storm scenario, with the model storm taking the form

Houze Jr., Robert A.

372

EP464 Fall 2004 Prof. Michael P. Bradley Edge Effects in the Parallel Plate Capacitor  

E-Print Network [OSTI]

EP464 Fall 2004 Prof. Michael P. Bradley Edge Effects in the Parallel Plate Capacitor: The Maxwell y - + + + - #12;EP464 Fall 2004 Prof. Michael P. Bradley and also multiply from x=- to a finite x value. #12;EP464 Fall 2004 Prof. Michael P. Bradley These two equipotential

Saskatchewan, University of

373

Tunneling between Edge States in a Quantum Spin Hall System Anders Strom and Henrik Johannesson  

E-Print Network [OSTI]

to be realized at low energies in a plane of graphene due to spin- orbit interactions [4]. Being a band insulator two opposite edges of a QSH bar (Fig. 1). When the bar is connected to a battery, a net spin current

Johannesson, Henrik

374

E-Print Network 3.0 - absorption edge imaging Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

NUMBER 16 P H Y S I C A L R E V I E W L E T T E R S 21 APRIL 1997 High Intensity Laser Absorption by Gases of Atomic Clusters Summary: in the rising edge of the pulse. The close...

375

Abrupt climate shifts in Greenland due to displacements of the sea ice edge  

E-Print Network [OSTI]

by insulating the atmosphere from the substantial heat capacity of the ocean. When sea ice is absent, the oceanAbrupt climate shifts in Greenland due to displacements of the sea ice edge Camille Li,1 David S that a reduction in sea ice extent in the North Atlantic produces a climatic response consistent with abrupt

Schrag, Daniel

376

Investigation of ELM [edge localized mode] Dynamics with the Resonant Magnetic Perturbation Effects  

SciTech Connect (OSTI)

Topics covered are: anomalous transport and E x B flow shear effects in the H-mode pedestal; RMP (resonant magnetic perturbation) effects in NSTX discharges; development of a scaling of H-mode pedestal in tokamak plasmas with type I ELMs (edge localized modes); and divertor heat load studies.

Pankin, Alexei Y.; Kritz, Arnold H.

2011-07-19T23:59:59.000Z

377

Electron-cyclotron wave scattering by edge density fluctuations in ITER Christos Tsironis,1,2  

E-Print Network [OSTI]

influence on localized heating and current drive. A wave used for electron-cyclotron current drive ECCD must. doi:10.1063/1.3264105 I. INTRODUCTION In the electron-cyclotron resonance heating ECRH sys- temElectron-cyclotron wave scattering by edge density fluctuations in ITER Christos Tsironis,1

Isliker, Heinz

378

Electroabsorption modulator performance predicted from band-edge absorption spectra of bulk, quantum-well,  

E-Print Network [OSTI]

, quantum-well, and quantum-well-intermixed InGaAsP structures Gordon B. Morrison a,*, James W. Raring c-well-intermixed InGaAsP material are collected and compared using photocurrent spectroscopy. The expected will change the band-edge absorp- tion spectrum. This property can be induced in InGaAsP by two distinct

Coldren, Larry A.

379

Current distribution near an electrode edge as a primary distribution is approached  

SciTech Connect (OSTI)

When ohmic resistances dominate over electrode kinetic resistances, the distribution of current density on an electrode can be highly nonuniform. In the limit of zero kinetic resistance (i.e., a primary current distribution) the current density at the edge of an electrode will be infinite if the interior angle of intersection between the electrode and insulator is obtuse. In practical cases, nonzero kinetic resistances exist, and the current density remains finite. Previous results demonstrate that, when the ohmic resistance is large compared to the kinetic resistance, the current distribution can be described by the primary distribution everywhere except the edge region. The purpose of this paper is to describe the deviations from the primary distribution and to show explicitly the manner in which the current density at the edge of the electrode approaches extreme values as the ohmic resistance becomes large. The analysis is valid for any angle of intersection and can be applied in the edge region (for a large ohmic resistance) regardless of the geometric details of the rest of the electrochemical cell. Results are given for linear and Tafel kinetics.

West, A.C.; Newman, J. (Materials and Chemical Sciences Div., Lawrence Berkley Lab., and Dept. of Chemical Engineering, Univ. of California, Berkley, CA (US))

1989-10-01T23:59:59.000Z

380

A FLASH-FLOODING STORM AT THE STEEP EDGE OF HIGH  

E-Print Network [OSTI]

was the Big Thompson flood of 1976 in Colorado, which remains of intense interest in the United StatesA FLASH-FLOODING STORM AT THE STEEP EDGE OF HIGH TERRAIN Disaster in the Himalayas by Kristen L. rasmussen and robert a. Houze Jr. A lethal flash flood inundated a town when moist airflow from the lowlands

Houze Jr., Robert A.

Note: This page contains sample records for the topic "worn leading edge" 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

Initialization is Robust in Evolutionary Algorithms that Encode Spanning Trees as Sets of Edges  

E-Print Network [OSTI]

of random spanning trees is not as simple as it might appear. Mechanisms based on Prim's and Kruskal's minimum spanning tree algorithms are not uniform, and uniform mechanisms are slow, not guaranteed- bution of edges in its initial population damages the EA's performance, but this is remedied

Julstrom, Bryant A.

382

Fast 2-D Camera Control, Data Acquisition, and Database Techniques for Edge Studies on NSTX  

E-Print Network [OSTI]

. Scotti1, M. K. Ko3 1Princeton Plasma Physics Laboratory, Princeton, NJ 08540 2 Lodestar Research Corporation, Boulder, CO 80301 3 Princeton H.S., Princeton, NJ 08540 Poster P3-01 Abstract Number ???? #12;NSTX-U 9th IAEA TM ­ Fast 2-D Camera Plasma Edge Studies (W. Davis) May 6-10, 2013 Abstract 2 Fast 2-D

Princeton Plasma Physics Laboratory

383

X-ray bandwidth: Determination by on-edge absorption and effect on various absorption experiments  

E-Print Network [OSTI]

X-ray bandwidth: Determination by on-edge absorption and effect on various absorption experiments of an x-ray source is increasingly important in fundamental experi- ments and critical applications. The bandwidth of an x-ray beam, selected from a synchrotron radiation spectrum for example, ultimately defines

Chantler, Christopher T.

384

Numerical methods for extracting edge stress intensity functions in anisotropic three-dimensional domains  

E-Print Network [OSTI]

) depending on the given body forces and tractions on the other hand. The eigen-pairs (eigen-values and eigen domains is provided in many prior publications [21,12,9,2]. A semi-analytic approach for the eigen domains in the vicinity of an edge is represented by a family of eigen-functions (similar to 2-D domains

Yosibash, Zohar

385

Protocol, Site Leads - May 2011 | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Site Leads - May 2011 Site Leads - May 2011 Protocol, Site Leads - May 2011 May 2011 Protocol for Site Leads The purpose of this protocol is to establish the requirements and responsibilities for the Office of Safety and Emergency Management Evaluations Site Leads. The Site Lead's primary responsibility is to perform independent safety oversight at their assigned site(s). Site Leads are assigned to Department of Energy (DOE) sites with nuclear facilities to maintain operational awareness, establish and implement a prioritized set of oversight activities focused on high hazard nuclear facilities and tailored to site conditions, activities and issues. Protocol, Site Leads - May 2011 More Documents & Publications Appraisal Process Protocols, Independent Oversight - November 2012

386

Protocol, Site Leads - May 2011 | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Protocol, Site Leads - May 2011 Protocol, Site Leads - May 2011 Protocol, Site Leads - May 2011 May 2011 Protocol for Site Leads The purpose of this protocol is to establish the requirements and responsibilities for the Office of Safety and Emergency Management Evaluations Site Leads. The Site Lead's primary responsibility is to perform independent safety oversight at their assigned site(s). Site Leads are assigned to Department of Energy (DOE) sites with nuclear facilities to maintain operational awareness, establish and implement a prioritized set of oversight activities focused on high hazard nuclear facilities and tailored to site conditions, activities and issues. Protocol, Site Leads - May 2011 More Documents & Publications Appraisal Process Protocols, Independent Oversight - November 2012

387

Systems Engineering Leading Indicators Guide, Version 1.0  

E-Print Network [OSTI]

The Systems Engineering Leading Indicators guide set reflects the initial subset of possible indicators that were considered to be the highest priority for evaluating effectiveness before the fact. A leading indicator is ...

Lean Advancement Initiative

2013-10-31T23:59:59.000Z

388

Lab Discovery: Water Leads to Chemical that "Gunks Up" Biofuels...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Lab Discovery: Water Leads to Chemical that "Gunks Up" Biofuels Production Lab Discovery: Water Leads to Chemical that "Gunks Up" Biofuels Production November 20, 2014 - 12:16pm...

389

Solar Decathlon Team Leading the Way Toward Sustainable Living...  

Broader source: Energy.gov (indexed) [DOE]

Leading the Way Toward Sustainable Living, Even in the Wake of Disasters Solar Decathlon Team Leading the Way Toward Sustainable Living, Even in the Wake of Disasters August 18,...

390

DOE ZERH Second Leading Builder Round Table Meeting Report  

Broader source: Energy.gov [DOE]

On October 23rd-24th, 2014, the ZERH program held its Second Leading Production Builder Round Table Meeting in Suwanee, GA. The purpose was to provide top executives from leading builders with a...

391

Lead levels in the water of suburban Glasgow  

Science Journals Connector (OSTI)

... per ml RBC per min (Units). Blood and water lead levels were measured by flameless atomic absorption spectrophotometry (Table 1).

GAIL ADDIS; MICHAEL R. MOORE

1974-11-08T23:59:59.000Z

392

Childhood Lead Poisoning Prevention Program Community Awareness Pilot  

E-Print Network [OSTI]

Childhood Lead Poisoning Prevention Program Community Awareness Pilot #12;1 THE GOOD NEWS- Exposure solder, and brass faucets). A

393

Lead-Free Surface Finishes for Electronic Components  

E-Print Network [OSTI]

Lead-Free Surface Finishes for Electronic Components: Tin Whisker Growth METALS This project degraded by the switch to lead- free technology. In particular, the state of compressive stress and the localized creep response (whisker growth) of tin-based lead-free electrodeposits are being measured

394

The Value of Lead Logistics Services Oliver Schneider1  

E-Print Network [OSTI]

The Value of Lead Logistics Services Oliver Schneider1 , Andr� Lindner2 1 ETH Zurich, Center Schindellegi, Switzerland andre.lindner@kuehne-nagel.com Abstract. Logistics Services are one of the most was developed in a collaborative action research project with a world leading provider of lead logistics

Boyer, Edmond

395

Nonlinear voltages in multiple-lead coherent conductors  

Science Journals Connector (OSTI)

We use the generalized S-matrix approach to study multiple-lead coherent conductors in the case of finite applied voltages. In this framework we discuss the transverse voltage arising in a four-lead conductor with two symmetric biased leads.

Gordey B. Lesovik and Carlo Presilla

1993-01-15T23:59:59.000Z

396

Technical Note Ultrasound Probe with Integrated ECG Lead: Feasibility Study  

E-Print Network [OSTI]

Technical Note Ultrasound Probe with Integrated ECG Lead: Feasibility Study ARCHANA RAMIREDDY 27708 stephen.w.smith@duke.edu We integrated electrocardiogram (ECG) leads onto the face of a cardiac of devices needed to col- lect cardiac information. Since the ECG leads were not placed on their standard

Smith, Stephen

397

Communications: Near edge x-ray absorption fine structure spectroscopy of aqueous adenosine triphosphate at the carbon and nitrogen  

E-Print Network [OSTI]

triphosphate at the carbon and nitrogen K-edges Daniel N. Kelly,1 Craig P. Schwartz,1,2 Janel S. Uejio,1 online xx xx xxxx Near edge x-ray absorption fine structure NEXAFS spectroscopy at the nitrogen-sphere association of Cu2+ did create observable broadening of the nitrogen spectrum, whereas outer

Cohen, Ronald C.

398

Modeling Wind-Driven Circulation and Landfast Ice-Edge Processes during Polynya Events in Northern Baffin Bay  

E-Print Network [OSTI]

attached to the ice edge that is generated during strong northerly wind events. Primary production heat polynyas. In the former case, sea ice is continuously advected by winds and/or currents away fromModeling Wind-Driven Circulation and Landfast Ice-Edge Processes during Polynya Events in Northern

399

Google:[Leonid Zakharov] http://w3.pppl.gov/~zakharov Where is the edge in toroidal plasmas ?1  

E-Print Network [OSTI]

Leonid E. Zakharov Princeton Plasma Physics Laboratory, MS-27 P.O. Box 451, Princeton NJ 08543­AC020­76­CHO­3073. PRINCETON PLASMA PHYSICS LABORATORY PPPL #12;Contents 1 What is the plasma edge 4 2 is the plasma edge 27 6 Summary. 32 Leonid E. Zakharov, Experimental Seminar, PPPL April 15, 2008, Princeton NJ

Zakharov, Leonid E.

400

A two-dimensional mathematical model of a porous lead dioxide electrode in a lead-acid cell  

E-Print Network [OSTI]

rechargeability of the lead-acid battery make it the single most widely used battery system worldwide (1). The applications of the battery system vary from small sealed batteries for consumer use to the large load levelling systems for electric utilities (2... current density distribution would lead to inefficient use oi' the porous electrodes and, subsequently, would lower the performance of each cell in a battery. A number of factors could lead to nonuniform current distribution. In a typical lead-acid cell...

Dimpault-Darcy, Eric Christophe

2012-06-07T23:59:59.000Z

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


401

Integrated particle simulation of neoclassical and turbulence physics in the tokamak pedestal/edge region using XGC  

SciTech Connect (OSTI)

An integrated gyrokinetic particle simulation with turbulence and neoclassical physics in a diverted tokamak edge plasma has been performed. Neoclassical equilibrium gyrokinetic solutions in the whole edge plasma have been separated from the turbulence activities for the first time, using the massively parallel Jaguar XT3 computer at Oak Ridge National Laboratory. The equilibrium solutions in an H-mode-like edge plasma condition show strongly sheared global ExB and parallel flows in the entire edge plasma including the pedestal and scrape-off regions. In an L-mode-like edge plasma condition, the sheared flows in the pedestal layer are much weaker, supporting the conjecture that the neoclassical flow-shear may play a significant role in the H-mode physics.

Chang, C S [New York University; Ku, Seung-Hoe [New York University; Adams, Mark [Columbia University; D'Azevedo, Eduardo [ORNL; Chen, Yang [University of Colorado, Boulder; Cummings, Julian [California Institute of Technology, Pasadena; Ethier, Stephane [Princeton Plasma Physics Laboratory (PPPL); Greengard, Leslie [New York University; Hahm, Taik Soo [Princeton Plasma Physics Laboratory (PPPL); Hinton, Fred [University of California, San Diego; Keyes, David E [Columbia University; Klasky, Scott A [ORNL; Lee, Wei-Li [Princeton Plasma Physics Laboratory (PPPL); Lin, Zhihong [University of California, Irvine; Nishimura, Yasutaro [University of California, Irvine; Parker, Scott [University of Colorado, Boulder; Samtaney, Ravi [Princeton Plasma Physics Laboratory (PPPL); Stotler, D. [Princeton Plasma Physics Laboratory (PPPL); Weitzner, Harold [New York University; Worley, Patrick H [ORNL; Zorin, Denis [New York University

2007-01-01T23:59:59.000Z

402

Maximum edge-cuts in~cubic graphs with large girth and in~random cubic graphs  

E-Print Network [OSTI]

We show that for every cubic graph G with sufficiently large girth there exists a probability distribution on edge-cuts of G such that each edge is in a randomly chosen cut with probability at least 0.88672. This implies that G contains an edge-cut of size at least 1.33008n, where n is the number of vertices of G, and has fractional cut covering number at most 1.12776. The lower bound on the size of maximum edge-cut also applies to random cubic graphs. Specifically, a random n-vertex cubic graph a.a.s. contains an edge cut of size 1.33008n.

Kardos, Frantisek; Volec, Jan

2011-01-01T23:59:59.000Z

403

Lead concentrations in blood and milk from periparturient dairy heifers seven months after an episode of acute lead toxicosis  

SciTech Connect (OSTI)

In September 1988, 100 of 300 yearling dairy heifers developed blindness, tachypnea, foaming at the mouth, chewing, and facial fasciculations. Twenty-five animals died. Lead toxicosis was diagnosed based on the clinical signs and the presence of excessive concentrations of lead in whole blood, liver, kidney, and rumen contents of affected animals. The source of the lead was sudan grass silage that had been contaminated by soil that contained up to 77,000 mg/kg of lead. Lead concentrations were determined approximately 7 months after the acute episode of lead toxicosis. Whole blood and milk samples were obtained from heifers and a group of control cows 2 weeks prior to (blood only), at the time of, and 2 and 4 weeks after freshening. No lead was found in any of the milk samples (detection limit = 0.055 mg/liter). Animals that had been severely affected by lead toxicosis experienced a transient increase in whole blood lead concentrations at freshening that was not high enough to be considered toxic. No similar increases in blood lead were observed for control cows or heifers that had experienced milder toxicosis. These findings suggest that at parturition lead is mobilized into the blood of cattle previously exposed to excessive lead.

Galey, F.D.; Slenning, B.D.; Anderson, M.L.; Breneman, P.C.; Littlefield, E.S.; Melton, L.A.; Tracy, M.L. (California Veterinary Diagnostic Laboratory System-Toxicology Laboratory, University of California, Davis (USA))

1990-07-01T23:59:59.000Z

404

Effect of Lead Pollution Control on Environmental and Childhood Blood Lead Level in Nantong, China: An Interventional Study  

Science Journals Connector (OSTI)

Effect of Lead Pollution Control on Environmental and Childhood Blood Lead Level in Nantong, China: An Interventional Study ... Results showed that, one year after the lead control, lead concentrations sharply decreased in both environmental and biological samples with a decrease of 0.43 ?g/m3 (?84.3%) in ambient air samples, 0.22 mg/kg (?36.1%) in vegetable samples, 441.1 mg/kg (?43.7%) in dust samples, and 6.24 ?g/dL (?51.5%) in childhood blood lead levels (BLL). ...

Kai Chen; Lei Huang; Beizhan Yan; Hongbo Li; Hong Sun; Jun Bi

2014-10-08T23:59:59.000Z

405

On the initial phenomena occurring in lead/lead collisions at relativistic energies  

E-Print Network [OSTI]

A new study of the initial phenomena occurring in the fireball should confirm the predicted creation of a new state of nuclear matter having a lifetime of 0.17 yoctosecond and releasing an energy of 3.87 GeV. The energy-time uncertainty relation might be connected with an up to now unsuspected momentum-position uncertainty relation holding in a three-dimensional time. This new point of view leads to the interpretation of the charge of a particle as being a rotational motion in time, to a new interpretation of inertia, and to a new interpretation of the color of a particle. The transverse momentum observed in the study of the fireball might be the signature of this motion in time of the charge.

C. Ythier; G. Mouze

2012-12-13T23:59:59.000Z

406

DOE Awards Supercomputer Access to Cutting-Edge Projects | U.S. DOE Office  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

DOE Awards DOE Awards Supercomputer Access to Cutting-Edge Projects News Featured Articles Science Headlines 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Presentations & Testimony News Archives Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 12.18.08 DOE Awards Supercomputer Access to Cutting-Edge Projects Print Text Size: A A A Subscribe FeedbackShare Page WASHINGTON, D.C. - The U.S. Department of Energy's (DOE) Office of Science announced today that 66 projects addressing some of the greatest scientific challenges have been awarded access to some of the world's most powerful supercomputers at DOE national laboratories. The projects-competitively selected for their technical readiness and scientific merit-will advance research in key areas such as astrophysics,

407

U.S. Department of Energy and Masdar Collaborate In Testing Cutting-Edge  

Broader source: Energy.gov (indexed) [DOE]

Department of Energy and Masdar Collaborate In Testing Department of Energy and Masdar Collaborate In Testing Cutting-Edge Solar PV Coating Technologies U.S. Department of Energy and Masdar Collaborate In Testing Cutting-Edge Solar PV Coating Technologies February 28, 2011 - 12:00am Addthis Abu Dhabi-UAE: The U.S. Department of Energy (DOE) and Masdar, Abu Dhabi's multifaceted renewable energy initiative, announced that they will collaborate to test the performance of specially coated solar photovoltaic modules designed to avoid the moisture and cementation problems currently faced by PV module producers worldwide and prevent dry dust adhesion. Developed by the U.S. National Renewable Energy Laboratory (NREL) - the U.S. federal laboratory dedicated to the research, development, commercialization and deployment of renewable energy and energy efficiency

408

PPPL scientists present cutting-edge results at major physics meeting |  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

scientists present cutting-edge results at major physics meeting scientists present cutting-edge results at major physics meeting By Kitta MacPherson November 12, 2013 Tweet Widget Facebook Like Google Plus One Gallery: The "Remote Glow Discharge Experiment (RGDX)". The "Remote Glow Discharge Experiment (RGDX)". Arturo Dominguez. (Photo by Elle Starkman/ PPPL Office of Communications) Arturo Dominguez. More than 1,500 researchers, including scientists from the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL), have gathered in Denver, Colorado, for the 55th Annual Meeting of the American Physical Society's (APS) Division of Plasma Physics (DPP). The five-day conference concludes Nov. 15. While there, they will attend nine half-day sessions covering topics ranging from the challenges of producing a fusion reaction

409

Solar Startup Semprius to Create 250 Jobs in North Carolina at Cutting-Edge  

Broader source: Energy.gov (indexed) [DOE]

Solar Startup Semprius to Create 250 Jobs in North Carolina at Solar Startup Semprius to Create 250 Jobs in North Carolina at Cutting-Edge Pilot Plant Solar Startup Semprius to Create 250 Jobs in North Carolina at Cutting-Edge Pilot Plant July 25, 2011 - 9:44am Addthis A tiny Semprius HCPV cell, mounted on an interposer. Each cell is only 0.6mm on one side. | Photo courtesy of Semprius A tiny Semprius HCPV cell, mounted on an interposer. Each cell is only 0.6mm on one side. | Photo courtesy of Semprius A prototype of the module that will be manufactured at the new plant in Henderson, North Caroline. | Photo courtesy of Semprius A prototype of the module that will be manufactured at the new plant in Henderson, North Caroline. | Photo courtesy of Semprius The Semprius RD&D system in Tucson, Arizona. | Photo courtesy of Semprius

410

Plot/SurfW: Plotting Utility for EDGE2D Output  

SciTech Connect (OSTI)

This report describes a utility that was developed to display EDGE2D results. The utility is focused on results that relate to impurity density, velocity, and particle fluxes in the SOL and divertor. Due to the complicated nature of 2D impurity sources, the concentration of the thermal force near the separatrix and near the divertor entrance, the impurity flow pattern and impurity densities are not necessarily easy to visualize. Thus, we wanted a utility that allowed simple and quick visualization of the impurity behavior. In order to achieve this we overlaid the divertor hardware for plots inside the divertor and we expanded the appearance of the main chamber SOL by plotting distance along the field lines vs. SOL depth with the density (or velocity or flux or other quantity) the false colour. Also, we allowed for the plotted variable to be a function of the other EDGE2D result variables. __________________________________________________

W.M. Davis and J.D. Strachan

2012-06-22T23:59:59.000Z

411

SXR-XUV Diagnostics for Edge and Core of Magnetically Confined Plasmas  

SciTech Connect (OSTI)

The present report summarizes the results obtained during a one-year extension of DoE grant SXR-XUV Diagnostics for Edge and Core of Magnetically Confined Plasmas, at Johns Hopkins University, aimed at completing the development of a new type of magnetic fusion plasma diagnostic, the XUV Transmission Grating Imaging Radiometer (TGIR). The TGIR enables simultaneous spatially and spectrally resolved measurements of the XUV/VUV radiated power from impurities in fusion plasmas, with high speed. The instrument was successfully developed and qualified in the laboratory and in experiments on a tokamak. Its future applications will be diagnostic of the impurity content and transport in the divertor and edge of advanced magnetic fusion experiments, such as NSTX Upgrade.

Stutman, Dan [Johns Hopkins University

2014-09-10T23:59:59.000Z

412

Predicting the Voltage Dependence of Interfacial Electrochemical Processes at Lithium-Intercalated Graphite Edge Planes  

E-Print Network [OSTI]

The applied potential governs lithium-intercalation and electrode passivation reactions in lithium ion batteries, but are challenging to calibrate in condensed phase DFT calculations. In this work, the "anode potential" of charge-neutral lithium-intercalated graphite (LiC(6)) with oxidized edge planes is computed as a function of Li-content n(Li)) at edge planes, using ab initio molecular dynamics (AIMD), a previously introduced Li+ transfer free energy method, and the experimental Li+/Li(s) value as reference. The voltage assignments are corroborated using explicit electron transfer from fluoroethylene carbonate radical anion markers. PF6- is shown to decompose electrochemically (i.e., not just thermally) at low potentials imposed by our voltage calibration technique. We demonstrate that excess electrons reside in localized states-in-the-gap in the organic carbonate liquid region, which is not semiconductor-like (band-state-like) as widely assumed in the literature.

Leung, Kevin

2015-01-01T23:59:59.000Z

413

Neutron Bragg-edge-imaging for strain mapping under in situ tensile loading  

SciTech Connect (OSTI)

Wavelength selective neutron radiography at a cold neutron reactor source was used to measure strain and determine (residual) stresses in a steel sample under plane stress conditions. We present a new technique that uses an energy-resolved neutron imaging system based on a double crystal monochromator and is equipped with a specially developed (in situ) biaxial load frame to perform Bragg edge based transmission imaging. The neutron imaging technique provides a viewing area of 7 cm by 7 cm with a spatial resolution on the order of {approx} 100 {mu}m. The stress-induced shifts of the Bragg edge corresponding to the (110) lattice plane were resolved spatially for a ferritic steel alloy A36 (ASTM international) sample. Furthermore it is demonstrated that results agree with comparative data obtained using neutron diffraction and resistance based strain-gauge rosettes.

Woracek, R. [University of Tennessee, CEE Department, 223 Perkins Hall, Knoxville, Tennessee 37996 (United States); Helmholtz Zentrum Berlin, Hahn Meitner Platz 1, D-14109 Berlin (Germany); Penumadu, D. [University of Tennessee, CEE Department, 223 Perkins Hall, Knoxville, Tennessee 37996 (United States); Kardjilov, N.; Hilger, A.; Strobl, M.; Wimpory, R. C.; Manke, I.; Banhart, J. [Helmholtz Zentrum Berlin, Hahn Meitner Platz 1, D-14109 Berlin (Germany)

2011-05-01T23:59:59.000Z

414

High temperature superconducting step-edge SNS Josephson junctions on silicon substrates  

SciTech Connect (OSTI)

The authors have fabricated and tested YBCO step-edge SNS Josephson junctions on silicon substrates. The silicon step edges were patterned photolithographically and reactively ion etched using an SF{sub 6} plasma. The structures were fabricated through sequential angled pulsed laser deposition of yttria stabilized zirconia, YBCO, and gold layers, followed by photolithographic patterning and ion milling. The completed devices showed resistively shunted junction (RSJ)-like current voltage characteristics and microwave induced Shapiro Steps. Critical currents as large as 84 {micro}A and resistances of order 0.5 {Omega} were obtained. Measurable critical currents were observed up to 76 K. The authors report on the fabrication and properties of these junctions.

Rosenthal, P.A.; Cosgrove, J.E.; Fenner, D.B.; Rudman, D.A. [Advanced Fuel Research, Inc., East Hartford, CT (United States); Vale, L.R.; Ono, R.H. [NIST, Boulder, CO (United States)

1996-11-01T23:59:59.000Z

415

Scattering of Radio Frequency Waves by Edge Density Blobs in Tokamak Plasmas  

SciTech Connect (OSTI)

The density blobs and fluctuations present in the edge region of magnetic fusion devices can scatter radio frequency (RF) waves through refraction and diffraction. The scattering can diffuse the rays in space and in wave-vector space. The diffusion in space can make the rays miss their intended target region, while the diffusion in wave-vector space can broaden the wave spectrum and modify the wave damping and current profile.

Ram, A. K. [Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); Hizanidis, K.; Kominis, Y. [National Technical University of Athens, Association EURATOM-Hellenic Republic, Zografou, Athens 15773 (Greece)

2011-12-23T23:59:59.000Z

416

An experimental investigation of turbine blade heat transfer and turbine blade trailing edge cooling  

E-Print Network [OSTI]

studies have investigated the fluid flow and heat transfer behavior in high Reynolds number flows. Blair [7,8] investigated the effect of grid generated turbulence on flat plate heat transfer. He showed that turbulent heat transfer coefficient in flow... AN EXPERIMENTAL INVESTIGATION OF TURBINE BLADE HEAT TRANSFER AND TURBINE BLADE TRAILING EDGE COOLING A Dissertation by JUNGHO CHOI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

Choi, Jungho

2005-02-17T23:59:59.000Z

417

Lab Breakthrough: Lead-free Solder | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Lead-free Solder Lead-free Solder Lab Breakthrough: Lead-free Solder May 24, 2012 - 10:45am Addthis Iver Anderson, senior metallurgist at Ames Laboratory, explains the importance of lead-free solder in taking hazardous lead out of the environment by eliminating it from discarded computers and electronics that wind up in landfills. Anderson led a team that developed a tin-silver-copper replacement for traditional lead-tin solder that has been adopted by more than 50 companies worldwide. View the entire Lab Breakthrough playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs "Many creative solutions to problems in one field can be borrowed from another field..." Dr. Iver Anderson, Ames National Lab senior metallurgist Dr. Iver Anderson, Ames National Laboratory materials scientist, developed

418

Protocol, Qualification Standard for the Site Lead Program - May 2011 |  

Broader source: Energy.gov (indexed) [DOE]

Qualification Standard for the Site Lead Program - May Qualification Standard for the Site Lead Program - May 2011 Protocol, Qualification Standard for the Site Lead Program - May 2011 May 2011 Qualification Standard for the Site Lead Program This Qualification Standard establishes common functional area competency requirements for personnel assigned as Site Leads in the Office of Safety and Emergency Management Evaluations. Satisfactory and documented completion of the competency requirements contained in this Standard ensures that employees possess the minimum requisite competence to fulfill their functional area duties and responsibilities. This Standard is integrated with existing qualification standards developed by DOE in accordance with DOE Order 426.1, Federal Technical Capability. Protocol, Qualification Standard for the Site Lead Program - May 2011

419

The pinch of cold ions from recycling in the tokamak edge pedestal  

SciTech Connect (OSTI)

We apply the ''natural fueling mechanism'' [W. Wan, S. E. Parker, Y. Chen, and F. W. Perkins, Phys. Plasmas 17, 040701 (2010)] to the edge pedestal. The natural fueling mechanism is where cold ions naturally pinch radially inward for a heat-flux dominated plasma. It is shown from neoclassical-neutral transport coupled simulations that the recycling neutrals and the associated source ions are colder than the main ions in the edge pedestal. These recycling source ions will pinch radially inward due to microturbulence. Gyrokinetic turbulence simulations indicate that near the top of the pedestal, the pinch velocity of the recycling source ions is much higher than the main ion outgoing flow velocity. The turbulent pinch of the recycling source ions may play a role in the edge pedestal transport and dynamics. The cold ion temperature significantly enhances the pinch velocity of the recycling source ions near to the pedestal top. Neoclassical calculations show a cold ion pinch in the pedestal as well.

Wan Weigang; Parker, Scott E.; Chen Yang [Department of Physics, University of Colorado, Boulder, Colorado 80309 (United States); Park, Gun-Young [National Fusion Research Institute, 113 Gwahangno, Yuseong-Gu, DaeJeon 305-333 (Korea, Republic of); Chang, Choong-Seock [Courant Institute of Mathematical Sciences, New York University, New York, New York 10003 (United States); Stotler, Daren [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)

2011-05-15T23:59:59.000Z

420

PROGRESS IN QUANTIFYING THE EDGE PHYSICS OF H-MODE REGIME IN DIII-D  

SciTech Connect (OSTI)

Edge conditions in DIII-D are being quantified in order to provide insight into the physics of the H-mode regime. Electron temperature is not the key parameter that controls the L-H transition. Gradients of edge temperature and pressure are much more promising candidates for such parameters. The quality of H-mode confinement is strongly correlated with the height of the H-mode pedestal for the pressure. The gradient of the pressure appears to be controlled by MHD modes, in particular by kink-ballooning modes with finite mode number n. For a wide variety of discharges, the width of the barrier is well described with a relationship that is proportional to ({beta}{sub p}{sup ped}){sup 1/2}. An attractive regime of confinement has been discovered which provides steady-state operation with no ELMs, low impurity content and normal H-mode confinement. A coherent edge MHD-mode evidently provides adequate particle transport to control the plasma density and impurity content while permitting the pressure pedestal to remain almost identical to that observed in ELMing discharges.

R.J. GROEBNER; D.R. BAKER; J.A. BOEDO; K.H. BURRELL; T.N. CARLSTROM; R.D. DERANIAN; E.J. DOYLE; J.R. FERRON; P. GOHIL; G.R. MOYER; C.L. RETTIG; T.L. RHODES; D.M. THOMAS; T.H. OSBORNE; W.P. WEST

2000-10-01T23:59:59.000Z

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


421

Deep Spitzer spectroscopy of the `Flying Saucer' edge-on disk: Large grains beyond 50 AU  

E-Print Network [OSTI]

We present deep Spitzer-IRS low-resolution (lambda/Delta lambda ~ 100) 5-35 micron spectroscopy of the edge-on disk ``the Flying Saucer'' (2MASS J16281370-2431391) in the Ophiuchus molecular cloud. The spectral energy distribution exhibits the characteristic two-peak shape predicted for a circumstellar disk viewed very close to edge-on. The short-wavelength peak is entirely due to photons scattered off the surface of the disk, while the long-wavelength peak is due to thermal emission from the disk itself. The Spitzer spectrum represents the first spectroscopic detection of scattered light out to 15 micron from a bona-fide, isolated edge-on disk around a T Tauri star. The depth and the wavelength of the mid-infrared "valley" of the SED give direct constraints on the size distribution of large grains in the disk. Using a 2D continuum radiative transfer model, we find that a significant amount of 5-10 micron-sized grains is required in the surface layers of the disk at radii of 50-300 AU. The detection of relatively large grains in the upper layers implies that vertical mixing is effective, since grain growth models predict the grains would otherwise settle deep in the disk on short time scales. Additionally, we tentatively detect the 9.66 micron S(3) line of H2 and the 11.2 micron emission feature due to PAHs.

Klaus M. Pontoppidan; Karl R. Stapelfeldt; Geoffrey A. Blake; Ewine F. van Dishoeck; Cornelis P. Dullemond

2007-02-14T23:59:59.000Z

422

Deep Spitzer spectroscopy of the `Flying Saucer' edge-on disk: Large grains beyond 50 AU  

E-Print Network [OSTI]

We present deep Spitzer-IRS low-resolution (lambda/Delta lambda ~ 100) 5-35 micron spectroscopy of the edge-on disk ``the Flying Saucer'' (2MASS J16281370-2431391) in the Ophiuchus molecular cloud. The spectral energy distribution exhibits the characteristic two-peak shape predicted for a circumstellar disk viewed very close to edge-on. The short-wavelength peak is entirely due to photons scattered off the surface of the disk, while the long-wavelength peak is due to thermal emission from the disk itself. The Spitzer spectrum represents the first spectroscopic detection of scattered light out to 15 micron from a bona-fide, isolated edge-on disk around a T Tauri star. The depth and the wavelength of the mid-infrared "valley" of the SED give direct constraints on the size distribution of large grains in the disk. Using a 2D continuum radiative transfer model, we find that a significant amount of 5-10 micron-sized grains is required in the surface layers of the disk at radii of 50-300 AU. The detection of relati...

Pontoppidan, K M; Blake, G A; Van Dishoeck, E F; Dullemond, C P; Pontoppidan, Klaus M.; Stapelfeldt, Karl R.; Blake, Geoffrey A.; Dishoeck, Ewine F. van; Dullemond, Cornelis P.

2007-01-01T23:59:59.000Z

423

Magnetic K-edge absorption in 3d elements and its relation to local magnetic structure  

Science Journals Connector (OSTI)

In this paper we present a selection of circular magnetic x-ray dichroism (CMXD) measurements at the K edges of Fe, Ni, Co, and Mn in various alloys and compounds. We investigate the correlation between the measured spin-dependent absorption signal and the p-like spin polarization of the unoccupied bands at the Fermi level. In the case of Fe we find a direct correlation of the spin-dependent absorption profile to the p-like spin polarizations. This is discussed for various alloys. The measured CMXD signals are compared with theoretical calculations for the absorption spectra. For Fe and Ni we have performed spin-polarized relativistic Korringa-Kohn-Rostoker Greens function calculations, which give a parameter-free description of the spin-dependent absorption process. The content of information in the experimental CMXD spectra on the local magnetic p and d moments is discussed in comparison with the calculated changes of the p and d moments. In the case of the Co and Ni K edges we find a direct correlation of the average strength of the spin-dependent absorption signal to the p moment. For Co also a direct correlation to the d moment is indicated. At Fe K edges no proportionality of any features of the spin-dependent absorption profile to p or d moments have been found.

S. Sthler, G. Schtz, and H. Ebert

1993-01-01T23:59:59.000Z

424

A boundary element solution for a mode conversion study on the edge reflection of Lamb waves  

Science Journals Connector (OSTI)

The boundary element method well known for bulk wave scattering is extended to study the mode conversion phenomena of Lamb waves from a free edge. The elastodynamic interior boundary value problem is formulated as a hybrid boundary integralequation in conjunction with the normal mode expansion technique based on the Lamb wave dispersion equation. The present approach has the potential of easily handling the geometrical complexity of general guided wave scattering with improved computational efficiency due to the advantage of the boundary?type integral method. To check the accuracy of the boundary element program vertical shear wave diffraction due to a circular hole is solved and compared with previous analytical solutions. Edge reflection factors for the multibackscattered modes in a steel plate are satisfied quite well with the principle of energy conservation. In the cases of A0 A1 and S0 incidence the variations of the multireflection factors show similar tendencies to the existing results for glass. It is observed that the reflection of an incident wave becomes close to zero over a certain frequency range seen through energy interaction with other reflected modes and increases again beyond this minimum point due to reverse mode conversion. The reflections of the higher symmetric incident modes S1 and S2 are also investigated. It turns out that S1 mode is an unusual mode which is nearly unaffected by the mode conversion in the Lamb wave edge reflection.

Younho Cho; Joseph L. Rose

1996-01-01T23:59:59.000Z

425

ClearEdge Power formerly Quantum Leap Technology | Open Energy Information  

Open Energy Info (EERE)

ClearEdge Power formerly Quantum Leap Technology ClearEdge Power formerly Quantum Leap Technology Jump to: navigation, search Name ClearEdge Power (formerly Quantum Leap Technology) Place Hillsboro, Oregon Zip 97124 Sector Hydro, Hydrogen Product Develops small scale (~2.0kW) hydrogen fuel cells using silicon wafers. Coordinates 43.651735°, -90.341144° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.651735,"lon":-90.341144,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

426

Leading the Modernization of the Electricity Grid through Transformational  

Broader source: Energy.gov (indexed) [DOE]

Leading the Modernization of the Electricity Grid through Leading the Modernization of the Electricity Grid through Transformational Research and Partnerships Leading the Modernization of the Electricity Grid through Transformational Research and Partnerships A presentation given by the Office of Electricity on expansion of the Nation's transmission infrastructure; and integration of variable renewable generation into the routine operation of the power system. Leading the Modernization of the Electricity Grid through Transformational Research and Partnerships More Documents & Publications Statement of Patricia Hoffman, Princiipal Deputy Assistant Secretary for Electricity Delivery and Energy Reliability, U.S. Department of Energy Before the United States House of Representatives House Appropriations Subcommittee on Energy and Water Develop

427

Leading experts to speak at battery & energy storage technology...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Leading experts to speak at battery & energy storage technology conference adipex for sale Speakers from US Department of Energy, academia and industry to meet November 5th in...

428

Questions about how plants die leads to climate change answers  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Questions about how plants die leads to climate change answers Understanding mechanisms of mortality will provide important input to future climate forecasts. March 12, 2012 Tree...

429

Vapor cooled current lead for cryogenic electrical equipment  

DOE Patents [OSTI]

Apparatus and method are provided for conducting electric current to cryogenic electrical equipment devices. A combination of inner and outer tubes together form a plurality of hollow composite tubes housed in a sheath. Top and bottom block mounting means are fitted to hold the composite tubes and are affixed to the ends of the sheath. This combination forms a current lead. The current lead is attached to a cryogenic device housing a fluid coolant which moves through the current lead, cooling the current lead as the fluid travels.

Vansant, James H. (Tracy, CA)

1983-01-01T23:59:59.000Z

430

Cooperative Catalyst leads to Transformative Results | The Ames...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cooperative Catalyst leads to Transformative Results Capitalizing on the concept that everything proceeds faster with a little cooperation, researchers showed how designing...

431

Expulsion Leads to a New Catalyst | The Ames Laboratory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Expulsion Leads to a New Catalyst Locating a catalyst and reactants in confined spaces makes catalytic reactions go faster in the desired direction. Of course, the reaction...

432

Combined Heat and Power System Enables 100% Reliability at Leading...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

buildings on nearly 1,000 acres. Photo courtesy of Thermal Energy Corporation Combined Heat and Power System Enables 100% Reliability at Leading Medical Campus Recovery Act...

433

A leading index of drilling activity: Update and improvements  

SciTech Connect (OSTI)

A five-component composite leading index of United States rotary rig drilling activity is updated. The index is presented for 1949 through April 1986 and is shown to consistently lead turning points in drilling activity. Seven new leading indices based on some new components are also presented. A forecast of drilling activity is made for the remainder of 1986 based on the leading index and the current economic condition of the petroleum industry. The methods used to prepare time series and construct indices are reviewed.

Buell, R.S.; Maurer, R.A.

1986-01-01T23:59:59.000Z

434

India-Low Emissions Asian Development (LEAD) Program | Open Energy...  

Open Energy Info (EERE)

in up to 11 partner countries: Bangladesh, Cambodia, India, Indonesia, Laos, Malaysia, Nepal, Papua New Guinea, Philippines, Thailand, and Vietnam. References "USAID LEAD...

435

Paul Langan to lead ORNL's Neutron Sciences Directorate | ornl...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Bill Cabage Communications 865.574.4399 Paul Langan to lead ORNL's Neutron Sciences Directorate Paul Langan has been named ORNL's Associate Lab Director for Neutron Sciences. Paul...

436

Energy Data Management Lead-by-Example Resources  

Broader source: Energy.gov [DOE]

State and local governments can lead by example by promoting energy efficiency programs and policies for public facilities, equipment, and government operations.

437

Ashfia Huq Lead Scientist: POWGEN Spallation Neutron Source  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

do for characterizing battery materials? Ashfia Huq Lead Scientist: POWGEN Spallation Neutron Source Oak Ridge National Laboratory 2 Presentation name Outline of talk * An...

438

Competition of copper, lead, and cadmium adsorption to goethite.  

E-Print Network [OSTI]

??Competition of copper, lead, and cadmium adsorption on goethite depends on metal ion and oxide surface characteristics. Goethite was characterized via X-ray diffraction, potentiometric titrations, (more)

Christophi, Chris A.

1998-01-01T23:59:59.000Z

439

West Africa Emerges as Leading Region in Africa for Renewable...  

Open Energy Info (EERE)

West Africa Emerges as Leading Region in Africa for Renewable Energy and Energy Efficiency Home > Groups > Clean and Renewable Energy Dc's picture Submitted by Dc(107) Contributor...

440

Operations and Maintenance Lead-by-Example Resources  

Broader source: Energy.gov [DOE]

State and local governments can lead by example by promoting energy efficiency programs and policies for public facilities, equipment, and government operations.

Note: This page contains sample records for the topic "worn leading edge" 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.


441

Hanford Leads the Way for Greener Classrooms | Department of...  

Broader source: Energy.gov (indexed) [DOE]

RICHLAND, Wash. - EM's Richland Operations Office and contractor Mission Support Alliance (MSA) are leading the way to greener classrooms by developing a totally paperless...

442

NERSC Leads Next-Generation Code Optimization Effort  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Leads Next-Generation Code Optimization Effort NERSC Launches Next-Generation Code Optimization Effort NERSC, Intel, Cray team up to prepare users for transition to exascale...

443

Replacement of lead-loaded glovebox glove with attenuation medium that are not RCRA-hazardous metals  

SciTech Connect (OSTI)

Programmatic operations at the Los Alamos National Laboratory Plutonium Facility (TA-55) involve working with various amounts of plutonium and other highly toxic, alpha-emitting materials. The spread of radiological contamination on surfaces, airborne contamination, and excursions of contaminants into the operator's breathing zone are prevented through the use of a variety of gloveboxes (the glovebox, coupled with an adequate negative pressure gradient, provides primary confinement). Radiation shielding is commonly used to protect the glovebox worker from unintentional direct and secondary radiation exposure, while working with plutonium-238 and plutonium-239. In these environments, low-energy photons, i.e., those less than 250 keY, are encountered. Shielding glove box gloves are traditionally composed of lead-based materials, but these are now considered hazardous waste. This has prompted the development of new, nonhazardous- shielding gJovebox gloves. No studies, however, have investigated the effectiveness of these new glovebox gloves. We examined both leaded and nonhazardous- shielding glovebox gloves and compared their attenuation effectiveness over the energy range of interest at TA-55. All measurements are referenced to lead sheets, allowing direct comparisons to the common industry standard of 0.1 mm lead equivalent material. The attenuation properties of both types of glovebox gloves vary with energy, making it difficult for manufacturers to claim lead equivalency across the entire energy range used at TA-55. The positions of materials' photon energy absorption edges, which are particularly important to improved attenuation performance, depending upon the choice of radiation energy range, are discussed. This effort contributes to the Los Alamos National Laboratory Continuous Improvement Program by improving the efficiency, cost effectiveness, and formality of glovebox operations.

Cournoyer, Michael E [Los Alamos National Laboratory; George, Gerald L [Los Alamos National Laboratory; Dodge, Robert L [Los Alamos National Laboratory; Chunglo, Steve [CANBERRA INDUSTRIES

2010-01-01T23:59:59.000Z

444

An Insoluble Titanium-Lead Anode for Sulfate Electrolytes  

SciTech Connect (OSTI)

The project is devoted to the development of novel insoluble anodes for copper electrowinning and electrolytic manganese dioxide (EMD) production. The anodes are made of titanium-lead composite material produced by techniques of powder metallurgy, compaction of titanium powder, sintering and subsequent lead infiltration. The titanium-lead anode combines beneficial electrochemical behavior of a lead anode with high mechanical properties and corrosion resistance of a titanium anode. In the titanium-lead anode, the titanium stabilizes the lead, preventing it from spalling, and the lead sheathes the titanium, protecting it from passivation. Interconnections between manufacturing process, structure, composition and properties of the titanium-lead composite material were investigated. The material containing 20-30 vol.% of lead had optimal combination of mechanical and electrochemical properties. Optimal process parameters to manufacture the anodes were identified. Prototypes having optimized composition and structure were produced for testing in operating conditions of copper electrowinning and EMD production. Bench-scale, mini-pilot scale and pilot scale tests were performed. The test anodes were of both a plate design and a flow-through cylindrical design. The cylindrical anodes were composed of cylinders containing titanium inner rods and fitting over titanium-lead bushings. The cylindrical design allows the electrolyte to flow through the anode, which enhances diffusion of the electrolyte reactants. The cylindrical anodes demonstrate higher mass transport capabilities and increased electrical efficiency compared to the plate anodes. Copper electrowinning represents the primary target market for the titanium-lead anode. A full-size cylindrical anode performance in copper electrowinning conditions was monitored over a year. The test anode to cathode voltage was stable in the 1.8 to 2.0 volt range. Copper cathode morphology was very smooth and uniform. There was no measurable anode weight loss during this time period. Quantitative chemical analysis of the anode surface showed that the lead content after testing remained at its initial level. No lead dissolution or transfer from the anode to the product occurred.A key benefit of the titanium-lead anode design is that cobalt additions to copper electrolyte should be eliminated. Cobalt is added to the electrolyte to help stabilize the lead oxide surface of conventional lead anodes. The presence of the titanium intimately mixed with the lead should eliminate the need for cobalt stabilization of the lead surface. The anode should last twice as long as the conventional lead anode. Energy savings should be achieved due to minimizing and stabilizing the anode-cathode distance in the electrowinning cells. The anode is easily substitutable into existing tankhouses without a rectifier change.The copper electrowinning test data indicate that the titanium-lead anode is a good candidate for further testing as a possible replacement for a conventional lead anode. A key consideration is the cost. Titanium costs have increased. One of the ways to get the anode cost down is manufacturing the anodes with fewer cylinders. Additional prototypes having different number of cylinders were constructed for a long-term commercial testing in a circuit without cobalt. The objective of the testing is to evaluate the need for cobalt, investigate the effect of decreasing the number of cylinders on the anode performance, and to optimize further the anode design in order to meet the operating requirements, minimize the voltage, maximize the life of the anode, and to balance this against a reasonable cost for the anode. It is anticipated that after testing of the additional prototypes, a whole cell commercial test will be conducted to complete evaluation of the titanium-lead anode costs/benefits.

Ferdman, Alla

2005-05-11T23:59:59.000Z

445

Multiple-scattering calculations of the uranium {ital L}{sub 3}-edge x-ray-absorption near-edge structure  

SciTech Connect (OSTI)

A theoretical study of the uranium {ital L}{sub 3}-edge x-ray absorption near-edge structure (XANES) is presented for several uranium compounds, including oxides, intermetallics, uranyl fluoride, and {alpha}-uranium. Calculations were performed using FEFF6, an {ital ab} {ital initio} multiple-scattering (MS) code that includes the most important features of current theories. The results, which account for both the fine structure {chi} and the atomiclike background {mu}{sub 0} of the absorption coefficient {mu}, are compared to new and previously measured experimental spectra, reavealing very good agreement for most systems. For several compounds, a more detailed theoretical analysis determined the influence of cluster size and scattering order upon the calculated spectra. Results indicate that MS paths and scattering paths that include rather distant atoms make significant contributions for UO{sub 2}, whereas XANES for crystals with lower symmetry and density can be modeled using only shorter single-scattering paths. In most cases, assumption of a screened final state in the calculation gives better agreement with experiment than use of an unscreened final state. The successful modeling of spectra for a variety of different uranium compounds, with differing spectral features, indicates that the semirelativistic treatment of XANES used here is adequate even for heavy elements. The well-known resonance, observed experimentally for uranyl (UO{sub 2}{sup 2+}) compounds {approx}15 eV above the white line, is successfully modeled here for the first time, using multiple-scattering paths within the O-U-O axial bonds. Overlapping muffin-tin spheres were required in the calculation, probably as a result of the short uranyl axial bonds.

Hudson, E.A. [Glenn T. Seaborg Institute for Transactinium Science, Lawrence Livermore National Laboratory, University of California, Livermore, California 94551 (United States)] [Glenn T. Seaborg Institute for Transactinium Science, Lawrence Livermore National Laboratory, University of California, Livermore, California 94551 (United States); Rehr, J.J. [Department of Physics, University of Washington, Seattle, Washington 98195 (United States)] [Department of Physics, University of Washington, Seattle, Washington 98195 (United States); Bucher, J.J. [Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)] [Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

1995-11-15T23:59:59.000Z

446

rillEdge is a software system that provides real-time deci-sion support when drilling oil wells. Decisions are sup-  

E-Print Network [OSTI]

D rillEdge is a software system that provides real-time deci- sion support when drilling oil wells developed DrillEdge to reduce the cost and decrease the probability of fail- ures in oil well drilling. Currently, DrillEdge continuously mon- itors around 30 oil well drilling operations in parallel for sever

Aamodt, Agnar

447

Viscosity, hard sphere diameter and interionic potential for liquid lead  

E-Print Network [OSTI]

L-347 Viscosity, hard sphere diameter and interionic potential for liquid lead G. Chaussemy The Macedo-Litovitz equation for a hard sphere liquid provides a satisfactory model for the viscosity of lead and molecular dynamics. The activation energy for viscosity (0.07 eV) is similar to the height of the interionic

Boyer, Edmond

448

Following Germany's Lead: Using International Monetary Linkages to Estimate  

E-Print Network [OSTI]

Following Germany's Lead: Using International Monetary Linkages to Estimate the Effect of Monetary to countries with the weakest economic ties to Germany. We thank participants at the 2004 NBER Summer Workshop (2001). 2 Many European countries followed Germany's lead in setting their monetary policy during our

Sadoulet, Elisabeth

449

A Study of Lead Ingot Cargoes from Ancient Mediterranean Shipwrecks  

E-Print Network [OSTI]

Lead is often relegated to a footnote or sidebar in the study of ancient metals. However, the hundreds of lead ingots discovered in underwater sites over the past half-century have attested to the widespread production and trade of this utilitarian...

Brown, Heather Gail

2011-10-21T23:59:59.000Z

450

Biosorption of Lead and Nickel by Biomass of Marine Algae  

E-Print Network [OSTI]

Biosorption of Lead and Nickel by Biomass of Marine Algae Z.R. Holan and B. Volesky" Department 22, 1993 Screening tests of different marine algae biomass types revealed a high passive biosorptive uptake of lead up to 270 mg Pb/g of biomass in some brown marine algae. Members of the order Fucales

Volesky, Bohumil

451

Know Stroke Stroke is the third leading cause of  

E-Print Network [OSTI]

#12;Know Stroke Stroke is the third leading cause of death in the United States and a leading cause of serious, long-term disability in adults. About 600,000 new strokes are reported in the U.S. each year. The good news is that treatments are available that can greatly reduce the damage caused by a stroke

Bandettini, Peter A.

452

Methamphetamine self-administration in rats developmentally exposed to lead  

E-Print Network [OSTI]

to examine the effects of perinatal lead exposure on adult self-administration of intravenous (i.v.) methamphetamine across all relevant transition points of drug addiction. Adult female rats were administered a 16-mg lead or a control solution for 30 days...

Rocha, Angelica

2009-05-15T23:59:59.000Z

453

Southern California Leading EconomicSouthern California Leading EconomicSouthern California Leading EconomicSouthern California Leading Economic IndicatorIndicatorIndicatorIndicator May 2011 Institute for Economic and Environmental Studies (IEES), Califo  

E-Print Network [OSTI]

). Figure 1 Southern California and US Leading Indicators U.S. economic activity, often measured by real GDP California (Figure 2). Figure 2 Leading Indicators and Real GDP 60 70 80 90 100 110 120 91.3 92.2 93.1 93 one to two quarters before SC employment changes (Figure 4). The SC indicator currently projects

de Lijser, Peter

454

Are You Pregnant? Prevent Lead Poisoning. Start Now.  

E-Print Network [OSTI]

, and plumbing · Soil and tap water· Contact your local health department to learn more. #12;2 Now is the time. Most lead comes from paint in older homes. When old paint cracks and peels, it makes dangerous dust like sanding or scraping paint can make dangerous lead dust. Pregnant women should not be in the house

455

Leading and Trailing Anvil Clouds of West African Squall Lines  

Science Journals Connector (OSTI)

The anvil clouds of tropical squall-line systems over West Africa have been examined using cloud radar data and divided into those that appear ahead of the leading convective line and those on the trailing side of the system. The leading anvils ...

Jasmine Cetrone; Robert A. Houze Jr.

2011-05-01T23:59:59.000Z

456

Thailand-Low Emissions Asian Development (LEAD) Program | Open Energy  

Open Energy Info (EERE)

Thailand-Low Emissions Asian Development (LEAD) Program Thailand-Low Emissions Asian Development (LEAD) Program Jump to: navigation, search Name Thailand-Low Emissions Asian Development (LEAD) Program Agency/Company /Organization ICF International, United States Agency for International Development (USAID) Partner USFS, EPA, United States Department of State Sector Climate, Energy, Land Topics Background analysis, Low emission development planning, -LEDS Website http://www.LowEmissionsAsia.or Country Thailand South-Eastern Asia References USAID LEAD Program[1] The Low Emissions Asian Development (LEAD) program is a regional US Agency for International Development (USAID) activity that supports developing countries in Asia to achieve long-term, transformative development and accelerate sustainable, climate-resilient economic growth while slowing the

457

Federal Government: Leading by Example | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Government: Leading by Example Government: Leading by Example Federal Government: Leading by Example October 16, 2013 - 4:50pm Addthis Photo of the outside of a building with large horizontal balconies on a sandy xeriscape landscape Renovations to Camp Pendleton barracks extend its life 30 years. The project was certified to meet LEED Silver certification and included a dryscape, a bio swell to collect water runoff before entering the storm drain, and solar-powered parking lot lights. The Federal government plays a vital role in leading by example in environmental, energy, and economic performance. President Obama stressed this importance on October 5, 2009, by stating: "As the largest consumer of energy in the U.S. economy, the Federal government can and should lead by example when it comes to creating

458

Leading firms choose ENERGY STAR | ENERGY STAR Buildings & Plants  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Leading firms choose ENERGY STAR Leading firms choose 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 Why you should design to earn the ENERGY STAR Leading firms choose ENERGY STAR Why new doesn't always mean efficient Follow EPA's step-by-step process ENERGY STAR Challenge for Architects Leading firms choose ENERGY STAR Facebook data center Hundreds of leading A/E firms have already partnered

459

OCRWM Selects Sandia as Lead Laboratory | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

OCRWM Selects Sandia as Lead Laboratory OCRWM Selects Sandia as Lead Laboratory OCRWM Selects Sandia as Lead Laboratory January 18, 2006 - 10:45am Addthis Also reserves building at Idaho National Laboratory as future training facility WASHINGTON, DC - The Department of Energy's Office of Civilian Radioactive Waste Management (OCRWM) has announced it will designate Sandia National Laboratories as its lead laboratory to integrate repository science work for the Yucca Mountain Project. That work, which is currently overseen by OCRWM's contractor Bechtel SAIC, will be led by Sandia once the transition of responsibilities is completed. "We believe that establishing Sandia as our lead laboratory is an important step in our new path forward. The independent, expert review that the scientists at Sandia will perform will help ensure that the technical and

460

Bangladesh-Low Emissions Asian Development (LEAD) Program | Open Energy  

Open Energy Info (EERE)

Bangladesh-Low Emissions Asian Development (LEAD) Program Bangladesh-Low Emissions Asian Development (LEAD) Program Jump to: navigation, search Name Bangladesh-Low Emissions Asian Development (LEAD) Program Agency/Company /Organization ICF International, United States Agency for International Development (USAID) Partner USFS, EPA, United States Department of State Sector Climate, Energy, Land Topics Background analysis, Low emission development planning, -LEDS Website http://www.LowEmissionsAsia.or Country Bangladesh Southern Asia References USAID LEAD Program[1] The Low Emissions Asian Development (LEAD) program is a regional US Agency for International Development (USAID) activity that supports developing countries in Asia to achieve long-term, transformative development and accelerate sustainable, climate-resilient economic growth while slowing the

Note: This page contains sample records for the topic "worn leading edge" 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.


461

OCRWM Selects Sandia as Lead Laboratory | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

OCRWM Selects Sandia as Lead Laboratory OCRWM Selects Sandia as Lead Laboratory OCRWM Selects Sandia as Lead Laboratory January 18, 2006 - 10:45am Addthis Also reserves building at Idaho National Laboratory as future training facility WASHINGTON, DC - The Department of Energy's Office of Civilian Radioactive Waste Management (OCRWM) has announced it will designate Sandia National Laboratories as its lead laboratory to integrate repository science work for the Yucca Mountain Project. That work, which is currently overseen by OCRWM's contractor Bechtel SAIC, will be led by Sandia once the transition of responsibilities is completed. "We believe that establishing Sandia as our lead laboratory is an important step in our new path forward. The independent, expert review that the scientists at Sandia will perform will help ensure that the technical and

462

Nepal-Low Emissions Asian Development (LEAD) Program | Open Energy  

Open Energy Info (EERE)

Nepal-Low Emissions Asian Development (LEAD) Program Nepal-Low Emissions Asian Development (LEAD) Program Jump to: navigation, search Name Nepal-Low Emissions Asian Development (LEAD) Program Agency/Company /Organization ICF International, United States Agency for International Development (USAID) Partner USFS, EPA, United States Department of State Sector Climate, Energy, Land Topics Background analysis, Low emission development planning, -LEDS Website http://www.LowEmissionsAsia.or Country Nepal Southern Asia References USAID LEAD Program[1] The Low Emissions Asian Development (LEAD) program is a regional US Agency for International Development (USAID) activity that supports developing countries in Asia to achieve long-term, transformative development and accelerate sustainable, climate-resilient economic growth while slowing the

463

Vietnam-Low Emissions Asian Development (LEAD) Program | Open Energy  

Open Energy Info (EERE)

Vietnam-Low Emissions Asian Development (LEAD) Program Vietnam-Low Emissions Asian Development (LEAD) Program Jump to: navigation, search Name Vietnam-Low Emissions Asian Development (LEAD) Program Agency/Company /Organization ICF International, United States Agency for International Development (USAID) Partner USFS, EPA, United States Department of State Sector Climate, Energy, Land Topics Background analysis, Low emission development planning, -LEDS Website http://www.LowEmissionsAsia.or Country Vietnam South-Eastern Asia References USAID LEAD Program[1] The Low Emissions Asian Development (LEAD) program is a regional US Agency for International Development (USAID) activity that supports developing countries in Asia to achieve long-term, transformative development and accelerate sustainable, climate-resilient economic growth while slowing the

464

Malaysia-Low Emissions Asian Development (LEAD) Program | Open Energy  

Open Energy Info (EERE)

Malaysia-Low Emissions Asian Development (LEAD) Program Malaysia-Low Emissions Asian Development (LEAD) Program Jump to: navigation, search Name Malaysia-Low Emissions Asian Development (LEAD) Program Agency/Company /Organization ICF International, United States Agency for International Development (USAID) Partner USFS, EPA, United States Department of State Sector Climate, Energy, Land Topics Background analysis, Low emission development planning, -LEDS Website http://www.LowEmissionsAsia.or Country Malaysia South-Eastern Asia References USAID LEAD Program[1] The Low Emissions Asian Development (LEAD) program is a regional US Agency for International Development (USAID) activity that supports developing countries in Asia to achieve long-term, transformative development and accelerate sustainable, climate-resilient economic growth while slowing the

465

Definition: Lead-acid battery | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Lead-acid battery Jump to: navigation, search Dictionary.png Lead-acid battery A type of battery that uses plates made of pure lead or lead oxide for the electrodes and sulfuric acid for the electrolyte.[1] View on Wikipedia Wikipedia Definition Related Terms Battery, electrolyte References ↑ http://www1.eere.energy.gov/solar/solar_glossary.html Retr LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ieved from "http://en.openei.org/w/index.php?title=Definition:Lead-acid_battery&oldid=487934" Category: Definitions What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load)

466

The Source of Airborne Lead: Recycling Pb-Contaminated Soils  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The Source of Airborne Lead: Recycling The Source of Airborne Lead: Recycling Pb-Contaminated Soils Starting in the 1970s, federal regulatory control and eventual elimination of lead-based "anti-knock" additives in gasoline decreased the level of airborne Pb in the USA by two orders-of-magnitude [1]. Blood lead levels of the USA figure 1 Figure 1. The good, the bad, and the ugly. Ambient airborne particulate matter captured on filters of woven silica fiber (large strips) and TeflonTM (round). Clean fiber filter at bottom for comparison. Take a deep breath? population decreased correspondingly [2,3]. Despite this dramatic improvement in both exposure risk and body burden of Pb, the sources and health threat of the low levels of lead in our "unleaded" air remain topics

467

Philippines-Low Emissions Asian Development (LEAD) Program | Open Energy  

Open Energy Info (EERE)

Philippines-Low Emissions Asian Development (LEAD) Program Philippines-Low Emissions Asian Development (LEAD) Program Jump to: navigation, search Name Philippines-Low Emissions Asian Development (LEAD) Program Agency/Company /Organization ICF International, United States Agency for International Development (USAID) Partner USFS, EPA, United States Department of State Sector Climate, Energy, Land Topics Background analysis, Low emission development planning, -LEDS Website http://www.LowEmissionsAsia.or Country Philippines South-Eastern Asia References USAID LEAD Program[1] The Low Emissions Asian Development (LEAD) program is a regional US Agency for International Development (USAID) activity that supports developing countries in Asia to achieve long-term, transformative development and accelerate sustainable, climate-resilient economic growth while slowing the

468

Laos-Low Emissions Asian Development (LEAD) Program | Open Energy  

Open Energy Info (EERE)

Laos-Low Emissions Asian Development (LEAD) Program Laos-Low Emissions Asian Development (LEAD) Program Jump to: navigation, search Name Laos-Low Emissions Asian Development (LEAD) Program Agency/Company /Organization ICF International, United States Agency for International Development (USAID) Partner USFS, EPA, United States Department of State Sector Climate, Energy, Land Topics Background analysis, Low emission development planning, -LEDS Website http://www.LowEmissionsAsia.or Country Laos South-Eastern Asia References USAID LEAD Program[1] The Low Emissions Asian Development (LEAD) program is a regional US Agency for International Development (USAID) activity that supports developing countries in Asia to achieve long-term, transformative development and accelerate sustainable, climate-resilient economic growth while slowing the

469

Lead Test Assembly Irradiation and Analysis Watts Bar Nuclear Plant,  

Broader source: Energy.gov (indexed) [DOE]

Lead Test Assembly Irradiation and Analysis Watts Bar Nuclear Lead Test Assembly Irradiation and Analysis Watts Bar Nuclear Plant, Tennessee and Hanford Site, Richland, Washington Lead Test Assembly Irradiation and Analysis Watts Bar Nuclear Plant, Tennessee and Hanford Site, Richland, Washington SUMMARY This EA evaluates the environmental impacts associated with the U.S. Department of Energy proposed action to conduct a lead test assembly program to confirm the viability of using a commercial light water reactor to produce tritium. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD July 22, 1997 EA-1210: Finding of No Significant Impact Lead Test Assembly Irradiation and Analysis Watts Bar Nuclear Plant, Tennessee and Hanford Site, Richland, Washington July 22, 1997 EA-1210: Final Environmental Assessment

470

Development of lead-free solders for hybrid microcircuits  

SciTech Connect (OSTI)

Extensive work has been conducted by industry to develop lead-free solders for electronics applications. The driving force behind this effort is pressure to ban or tax the use of lead-bearing solders. There has been further interest to reduce the use of hazardous chemical cleaners. Lead-free soldering and low-residue, ``no clean`` assembly processing are being considered as solutions to these environmental issues. Most of the work has been directed toward commercial and military printed wiring board (PWB) technology, although similar problems confront the hybrid microcircuit (HMC) industry, where the development of lead-free HMC solders is generally lagging. Sandia National Laboratories is responsible for designing a variety of critical, high reliability hybrid components for radars. Sandia has consequently initiated a project, as part of its Environmentally Conscious Manufacturing program, to develop low-residue, lead-free soldering for HMCs. This paper discusses the progress of that work.

Hosking, F.M.; Vianco, P.T.; Frear, D.R.; Robinson, D.G.

1996-01-01T23:59:59.000Z

471

Continuous-wave electrically pumped 1.55-mu m edge-emitting platelet ridge laser diodes on silicon  

E-Print Network [OSTI]

We report the successful integration on silicon of small footprint, low-threshold electrically pumped edge-emitting lasers by a new approach incorporating microcleaving technology to produce 6-mum-thick platelet lasers ...

Rumpler, Joseph J.

472

Design of a finite impulse response filter for the purpose of directional edge detection via spatial domain convolution  

E-Print Network [OSTI]

The purpose of this research was to design a spatial domain convolution filter capable of directional edge detection which has a specific relationship to a pre-defined filter in the frequency domain. Nobody has designed a directional filter...

Yeary, Mark Bradley

2012-06-07T23:59:59.000Z

473

Physics and application of impurity plume dispersal as an edge plasma flow diagnostic on the Alcator C-Mod tokamak  

E-Print Network [OSTI]

A unique system has been developed for studying impurity transport in the edge plasma of Alcator C-Mod. Impurity gas (which for these experiments is deuterated ethylene, C?D?) is injected locally into the scrape-off layer ...

Gangadhara, Sanjay, 1972-

2003-01-01T23:59:59.000Z

474

PISCES Program: Plasma-materials interactions and edge-plasma physics research. Progress report, 1991--1992  

SciTech Connect (OSTI)

This program investigates and characterizes the behavior of materials under plasma bombordment, in divertor regions. The PISCES facility is used to study divertor and plasma edge management concepts (in particular gas target divertors), as well as edge plasma turbulence and transport. The plasma source consists of a hot LaB{sub 6} cathode with an annular, water-cooled anode and attached drift tube. This cross sectional area of the plasma can be adjusted between 3 and 10 cm. A fast scanning diagnostic probe system was used for mapping plasma density profiles during biased limiter and divertor simulation experiments. Some experimental data are given on: (1) materials and surface physics, (2) edge plasma physics, and (3) a theoretical analysis of edge plasma modelling.

Conn, R.W.; Hirooka, Y.

1992-07-01T23:59:59.000Z

475

Graphene Edge Lithography Guibai Xie, Zhiwen Shi, Rong Yang, Donghua Liu, Wei Yang, Meng Cheng, Duoming Wang, Dongxia Shi,  

E-Print Network [OSTI]

Graphene Edge Lithography Guibai Xie, Zhiwen Shi, Rong Yang, Donghua Liu, Wei Yang, Meng Cheng: Fabrication of graphene nanostructures is of importance for both investigating their intrinsic physical approach for graphene nanostructures. Compared with conventional lithographic fabrication techniques

Zhang, Guangyu

476

Pilot study dismantlement of 20 lead-lined shipping casks  

SciTech Connect (OSTI)

This report describes a pilot study conducted at the INEL to dismantle lead-lined casks and shielding devices, separate the radiologically contaminated and hazardous materials, and recycle resultant scrap lead. The facility areas where the work was performed, dismantlement methods, and process equipment are described. Issues and results associated with recycling the lead as a free-released scrap metal are presented and discussed. Data and results from the pilot study are summarized and presented. The study concluded that cask dismantlement at the INEL can be performed as a legitimate recycling activity for scrap lead. Ninety-one percent of the lead recovered passed free-release criteria. The value of the 50,375 lb of recovered lead is approximately $0.45/lb. Resultant waste streams can be satisfactorily treated and disposed. Only very low levels of bulk radiological contamination (47 picocuries/gram of 137 Cs and 3.2 picocuries/gram of {sup 6O}Co) were detected in the lead rejected for free release.

Thurmond, S.M.

1995-08-01T23:59:59.000Z

477

Depleted uranium instead of lead in munitions: the lesser evil  

Science Journals Connector (OSTI)

Uranium has many similarities to lead in its exposure mechanisms, metabolism and target organs. However, lead is more toxic, which is reflected in the threshold limit values. The main potential hazard associated with depleted uranium is inhalation of the aerosols created when a projectile hits an armoured target. A person can be exposed to lead in similar ways. Accidental dangerous exposures can result from contact with both substances. Encountering uranium fragments is of minor significance because of the low penetration depth of alpha particles emitted by uranium: they are unable to penetrate even the superficial keratin layer of human skin. An additional cancer risk attributable to the uranium exposure might be significant only in case of prolonged contact of the contaminant with susceptible tissues. Lead intoxication can be observed in the wounded, in workers manufacturing munitions etc; moreover, lead has been documented to have a negative impact on the intellectual function of children at very low blood concentrations. It is concluded on the basis of the literature overview that replacement of lead by depleted uranium in munitions would be environmentally beneficial or largely insignificant because both lead and uranium are present in the environment.

Sergei V Jargin

2014-01-01T23:59:59.000Z

478

Negative-U centers as a basis of topological edge channels  

SciTech Connect (OSTI)

We present the findings of the studies of the silicon sandwich nanostructure that represents the high mobility ultranarrow silicon quantum well of the p-type (Si-QW), 2 nm, confined by the ?-barriers, 3 nm, heavily doped with boron on the n-type Si (100) surface. The ESR studies show that nanostructured ?-barriers confining the Si-QW consist predominantly of the dipole negative-U centers of boron, which are caused by the reconstruction of the shallow boron acceptors along the <111> crystallographic axis, 2B{sup 0}?B{sup +}+B{sup ?}. The electrically ordered chains of dipole negative-U centers of boron in the ?-barriers appear to give rise to the topological edge states separated vertically, because the value of the longitudinal, G{sub xx}?=?4e{sup 2}/h, and transversal, G{sub xy}?=?e{sup 2}/h, conductance measured at extremely low drain-source current indicates the exhibition of the Quantum Spin Hall effect. Besides, the Aharonov-Casher conductance oscillations and the 0.7?(2e{sup 2}/h)-feature obtained are evidence of the interplay of the spontaneous spin polarisation and the Rashba spin-orbit interaction that is attributable to the formation of the topological edge channels. We discuss the phenomenological model of the topological edge channel which can demonstrate the ballistic, Aharonov-Chasher effect or Josephson junction behaviour in dependence on the disorder in the distribution of the negative-U dipole centers in the upper and down d-barriers.

Bagraev, Nikolay; Danilovskii, Eduard; Klyachkin, Leonid; Kudryavtsev, Andrey; Malyarenko, Anna [Ioffe Physical Technical Institute, Polytekhnicheskaya 26, 194021 St. Petersburg (Russian Federation); Gehlhoff, Wolfgang [Technische Universitaet Berlin, D-10623, Berlin (Germany); Mashkov, Vladimir [St. Petersburg State Polytechnical University, Polytekhnicheskaya 29, 195251 St. Petersburg (Russian Federation)

2014-02-21T23:59:59.000Z

479

DEEP CHANDRA OBSERVATIONS OF EDGES AND BUBBLES IN THE NGC 5846 GALAXY GROUP  

SciTech Connect (OSTI)

We use a combined 120 ks Chandra exposure to analyze X-ray edges produced by non-hydrostatic gas motions (sloshing) from galaxy collisions, and cavities formed by active galactic nucleus (AGN) activity. Evidence for gas sloshing is seen in the spiral morphology and multiple cold front edges in NGC 5846's X-ray surface brightness distribution, while the lack of spiral structure in the temperature map suggests that the perturbing interaction was not in the plane of the sky. Density and spectral modeling across the edges indicate that the relative motion of gas in the cold fronts is at most transonic. Evidence for AGN activity is seen in two inner bubbles at 0.6 kpc, filled with 5 GHz and 1.5 GHz radio plasma and coincident with H{alpha} emission, and in a ghost bubble at 5.2 kpc west of NGC 5846's nucleus. The outburst energy and ages for the inner (ghost) bubbles are {approx}10{sup 55} erg and {approx}2 Myr ({approx}5 Multiplication-Sign 10{sup 55} erg and 12 Myr), respectively, implying an AGN duty cycle of 10 Myr. The inner bubble rims are threaded with nine knots, whose total 0.5-2 keV X-ray luminosity is 0.3 Multiplication-Sign 10{sup 40} erg s{sup -1}, a factor {approx}2-3 less than that of the surrounding rims, and 0.7 keV mean temperature is indistinguishable from that of the rims. We suggest that the knots may be transient clouds heated by the recent passage of a shock from the last AGN outburst. We also observe gas stripping from a cE galaxy, NGC 5846A, in a 0.5 kpc long ({approx}10{sup 5} M{sub Sun }) hot gas tail, as it falls toward NGC 5846.

Machacek, Marie E.; Jerius, Diab; Kraft, Ralph; Forman, William R.; Jones, Christine; Randall, Scott [Harvard-Smithsonian Center for Astrophysics 60 Garden Street, Cambridge, MA 02138 (United States); Giacintucci, Simona [Department of Astronomy, University of Maryland, College Park, MD 20742-2421 (United States); Sun Ming, E-mail: mmachacek@cfa.harvard.edu [Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22901 (United States)

2011-12-10T23:59:59.000Z

480

University Competition Leads to Geothermal Breakthroughs | Department of  

Broader source: Energy.gov (indexed) [DOE]

University Competition Leads to Geothermal Breakthroughs University Competition Leads to Geothermal Breakthroughs University Competition Leads to Geothermal Breakthroughs March 8, 2013 - 11:57am Addthis Idaho State University's National Geothermal Student Competition team presenting their research findings at the 2012 Geothermal Resources Council spring/summer meeting. | Photo courtesy of the Geothermal Resources Council. Idaho State University's National Geothermal Student Competition team presenting their research findings at the 2012 Geothermal Resources Council spring/summer meeting. | Photo courtesy of the Geothermal Resources Council. Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs How can I participate? Apply for the 2013 National Geothermal Student Competition by

Note: This page contains sample records for the topic "worn leading edge" 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.


481

University Competition Leads to Geothermal Breakthroughs | Department of  

Broader source: Energy.gov (indexed) [DOE]

Competition Leads to Geothermal Breakthroughs Competition Leads to Geothermal Breakthroughs University Competition Leads to Geothermal Breakthroughs March 8, 2013 - 11:57am Addthis Idaho State University's National Geothermal Student Competition team presenting their research findings at the 2012 Geothermal Resources Council spring/summer meeting. | Photo courtesy of the Geothermal Resources Council. Idaho State University's National Geothermal Student Competition team presenting their research findings at the 2012 Geothermal Resources Council spring/summer meeting. | Photo courtesy of the Geothermal Resources Council. Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs How can I participate? Apply for the 2013 National Geothermal Student Competition by visiting the contest page.

482

Design of Material Strength Test in Lead-Bismuth Flow  

SciTech Connect (OSTI)

Liquid lead and lead-bismuth have drawn the attention as one of the candidate coolants of the fast breeder reactors (FBRs), and the accelerator driven transmutation systems (ADSs). In order to use the coolant to the systems, the physical and chemical characteristics of the heavy metals are necessary. This plan has been proposed for the strength test of materials in the liquid metal surroundings. The lead-bismuth circulation loop with the strength test has been designed, and the strength test of candidate materials has been planned. (authors)

Masatoshi Kondo; Minoru Takahashi [Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152 (Japan); Koji Hata [Nuclear Development Corporation, 622-12 Funaishikawa, Tokai-mura, Ibaraki 319-1111 (Japan)

2002-07-01T23:59:59.000Z

483

Interacting particle systems at the edge of multilevel Dyson Brownian motions  

E-Print Network [OSTI]

We study the joint asymptotic behavior of spacings between particles at the edge of multilevel Dyson Brownian motions, when the number of levels tends to infinity. Despite the global interactions between particles in multilevel Dyson Brownian motions, we observe a decoupling phenomenon in the limit: the global interactions become negligible and only the local interactions remain. The resulting limiting objects are interacting particle systems which can be described as Brownian versions of certain totally asymmetric exclusion processes. This is the first appearance of a particle system with local interactions in the context of general $\\beta$ random matrix models.

Vadim Gorin; Mykhaylo Shkolnikov

2014-09-06T23:59:59.000Z

484

Final Report for the "Fusion Application for Core-Edge Transport Simulations (FACETS)"  

SciTech Connect (OSTI)

The FACETS project over its lifetime developed the first self-consistent core-edge coupled capabilities, a new transport solver for modeling core transport in tokamak cores, developed a new code for modeling wall physics over long time scales, and significantly improved the capabilities and performance of legacy components, UEDGE, NUBEAM, GLF23, GYRO, and BOUT++. These improved capabilities leveraged the teams expertise in applied mathematics (solvers and algorithms) and computer science (performance improvements and language interoperability). The project pioneered new methods for tackling the complexity of simulating the concomitant complexity of tokamak experiments.

Cary, John R; Kruger, Scott

2014-10-02T23:59:59.000Z

485

Plant Succession at the Edges of Two Abandoned Cultivated Fields on the Arid Lands Ecology Reserve  

SciTech Connect (OSTI)

How vegetation recovers from disturbances is an important question for land managers. We examined 500 m2 plots to determine the progress made by native herbaceous plant species in colonizing the edges of abandoned cultivated fields at different elevations and microclimates, but with similar soils in a big sagebrush/bluebunch wheatgrass steppe. Alien species, especially cheatgrass and cereal rye, were the major competitors to the natives. The native species with best potential for restoring steppe habitats were sulphur lupine, hawksbeard, bottlebrush squirreltail, needle-and-thread grass, Sandberg's bluegrass, and several lomatiums.

Simmons, Sally A. (OFFICE OF FELLOWSHIP PROG); Rickard, William H. (OFFICE OF FELLOWSHIP PROG)

2002-12-01T23:59:59.000Z

486

Region and edge-adaptive sampling and boundary completion for segmentation  

SciTech Connect (OSTI)

Edge detection produces a set of points that are likely to lie on discontinuities between objects within an image. We consider faces of the Gabriel graph of these points, a sub-graph of the Delaunay triangulation. Features are extracted by merging these faces using size, shape and color cues. We measure regional properties of faces using a novel shape-dependant sampling method that overcomes undesirable sampling bias of the Delaunay triangles. Instead, sampling is biased so as to smooth regional statistics within the detected object boundaries, and this smoothing adapts to local geometric features of the shape such as curvature, thickness and straightness.

Dillard, Scott E [Los Alamos National Laboratory; Prasad, Lakshman [Los Alamos National Laboratory; Grazzini, Jacopo A [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

487

The stress field around two parallel edge cracks in a finite body  

E-Print Network [OSTI]

the application of the Schwarz alternating method in conjunction with complex mapping techniques for modelling the stress fields around two arbitrarily oriented cracks in an infinite body (see Fig. 1. 4). M P 0. 83W I. 83W Again 19. Isolated, Single...-Ended Crack Located in a Finite Body. " Zo r A I I 0 I Figure IA. Two Aibitnuily Oiiented Conchs Located in an Infinite Body. t CHAFIXR II FULL-FIELD REPRESENTATION OF THE STRESS FIELD SURROUNDING TWO EDGE CRACKS OVERVIEW OF THE METHODOLOGY USED...

Hardin, Patrick Wayne

2012-06-07T23:59:59.000Z

488

Asymmetric radiative equilibria in tokamak edge and the detached plasma transition  

Science Journals Connector (OSTI)

The nonlinear saturated state of the radiative thermal-condensation instability responsible for the phenomenon of multifaceted asymmetric radiation observed in tokamak edge plasmas has been investigated. The essential problem to study two-dimensional thermal equilibria where perpendicular and parallel heat conduction balances the radiated power and heat flux to the limiter. In certain reasonable limits, the nonlinear Poissons equation can be solved exactly to display many features of the observed detached plasma transition. Numerical results taking realistic temperature dependences for thermal-conductivity coefficients and a common coronal radiation model are also presented.

P. K. Kaw, S. Deshpande, K. Avinash, and S. Rath

1990-12-03T23:59:59.000Z

489

Virtual edge illumination and one dimensional beam tracking for absorption, refraction, and scattering retrieval  

SciTech Connect (OSTI)

We propose two different approaches to retrieve x-ray absorption, refraction, and scattering signals using a one dimensional scan and a high resolution detector. The first method can be easily implemented in existing procedures developed for edge illumination to retrieve absorption and refraction signals, giving comparable image quality while reducing exposure time and delivered dose. The second method tracks the variations of the beam intensity profile on the detector through a multi-Gaussian interpolation, allowing the additional retrieval of the scattering signal.

Vittoria, Fabio A., E-mail: fabio.vittoria.12@ucl.ac.uk; Diemoz, Paul C. [Department of Medical Physics and Bioengineering, University College London, Malet Place, Gower Street, London WC1E 6BT (United Kingdom); Research Complex at Harwell, Harwell Oxford Campus, OX11 0FA Didcot (United Kingdom); Endrizzi, Marco; Olivo, Alessandro [Department of Medical Physics and Bioengineering, University College London, Malet Place, Gower Street, London WC1E 6BT (United Kingdom); Wagner, Ulrich H.; Rau, Christoph [Diamond Light Source, Harwell Oxford Campus, OX11 0DE Didcot (United Kingdom); Robinson, Ian K. [Research Complex at Harwell, Harwell Oxford Campus, OX11 0FA Didcot (United Kingdom); London Centre for Nanotechnology, WC1H 0AH London (United Kingdom)

2014-03-31T23:59:59.000Z

490

Comparison of theoretical and experimental heat diffusivities in the DIII-D edge plasma  

SciTech Connect (OSTI)

Predictions of theoretical models for ion and electron heat diffusivity have been compared against experimentally inferred values of the heat diffusivity profile in the edge plasma of two H-modes and one L-mode discharge in DIII-D [J. Luxon, Nucl. Fusion 42, 614 (2002)]. Various widely used theoretical models based on neoclassical, ion temperature gradient modes, drift Alfven modes and radiative thermal instability modes for ion transport, and based on paleoclassical, electron temperature gradient modes, trapped electron modes, and drift resistive ballooning modes for electron transport were investigated.

Stacey, W. M. [Fusion Research Center, Georgia Tech, Atlanta, Georgia 30332 (United States)

2008-05-15T23:59:59.000Z

491

Elevating optical activity: Efficient on-edge lithography of three-dimensional starfish metamaterial  

SciTech Connect (OSTI)

We present an approach for extremely fast, wafer-scale fabrication of chiral starfish metamaterials based on electron beam- and on-edge lithography. A millimeter sized array of both the planar chiral and the true 3D chiral starfish is realized, and their chiroptical performances are compared by circular dichroism measurements. We find optical activity in the visible and near-infrared spectral range, where the 3D starfish clearly outperforms the planar design by almost 2 orders of magnitude, though fabrication efforts are only moderately increased. The presented approach is capable of bridging the gap between high performance optical chiral metamaterials and industrial production by nanoimprint technology.

Dietrich, K., E-mail: dietrich.kay@uni-jena.de; Menzel, C.; Lehr, D.; Puffky, O.; Pertsch, T.; Tnnermann, A.; Kley, E.-B. [Institute of Applied Physics, Abbe Center of Photonics, Friedrich-Schiller-Universitt Jena, Max-Wien-Platz 1, 07743 Jena (Germany); Hbner, U. [Leibniz Institute of Photonic Technology, Albert-Einstein-Strae 9, 07745 Jena (Germany)

2014-05-12T23:59:59.000Z

492

Tunneling in all-high-Tc edge junctions with deposited barriers  

Science Journals Connector (OSTI)

All-high-Tc-material edge junctions consisting of laser-ablated Y-Ba-Cu-O electrodes and an in situ rf-sputter-deposited MgO barrier have been fabricated whose I-V characteristics show tunneling-related effects. These include a junction resistance with an exponential dependence on the nominal-barrier thickness, gaplike structure observed in the conductance curves, and Josephson effects. These properties are very sensitive to the choice of materials-processsing method for the junction interfaces.

R. B. Laibowitz, R. P. Robertazzi, R. H. Koch, A. Kleinsasser, J. R. Kirtley, J. M. Viggiano, R. L. Sandstrom, and W. J. Gallagher

1992-12-01T23:59:59.000Z

493

DIII-D Edge Plasma, Disruptions, and Radiative Processes. Final Report  

SciTech Connect (OSTI)

The scientific goal of the UCSD-DIII-D Collaboration during this period was to understand the coupling of the core plasma to the plasma-facing components through the plasma boundary (edge and scrape-off layer). To achieve this goal, UCSD scientists studied the transport of particles, momentum, energy, and radiation from the plasma core to the plasma-facing components under normal (e.g., L-mode, H-mode, and ELMs), and off-normal (e.g., disruptions) operating conditions.

Boedo, J. A.; Luckhardt, S.C.; Moyer, R. A.

2001-01-01T23:59:59.000Z

494

Observation of audio-frequency edge magnetoplasmons in the classical two-dimensional electron gas  

Science Journals Connector (OSTI)

The electric admittance of a two-dimensional electron gas on liquid helium measured at audio frequencies ? is observed to oscillate as a function of magnetic field at strong magnetic fields. The oscillations can be attributed to the propagation of very-low-frequency (???10-6, ? scattering time; ?/?c?10-8, ?c cyclotron frequency) edge magnetoplasmons. The directly determined dispersion relation agrees with theory and quantitatively with measurements in the collisionless regime (???1). The attenuation, theoretically obtained by incorporating the screening in a simple local-capacitance model, agrees well with experiments.

P. J. M. Peters; M. J. Lea; A. M. L. Janssen; A. O. Stone; W. P. N. M. Jacobs; P. Fozooni; R. W. van der Heijden

1991-10-14T23:59:59.000Z

495

Lead by example | ENERGY STAR Buildings & Plants  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Lead by example Lead by example 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 Promote energy efficiency Lead by example Are you encouraging your community to improve the energy efficiency of

496

SEEWEC Consortium lead partner Ghent University | Open Energy Information  

Open Energy Info (EERE)

SEEWEC Consortium lead partner Ghent University SEEWEC Consortium lead partner Ghent University Jump to: navigation, search Name SEEWEC Consortium lead partner Ghent University Address Sint Pietersnieuwstraat 41 Place Gent Zip 9000 Sector Marine and Hydrokinetic Website http://www.seewec.org Region Belgium LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This company is listed in the Marine and Hydrokinetic Technology Database. This company is involved in the following MHK Projects: SEEWEC Consortium Brevik NO This company is involved in the following MHK Technologies: FO This article is a stub. You can help OpenEI by expanding it. Retrieved from "http://en.openei.org/w/index.php?title=SEEWEC_Consortium_lead_partner_Ghent_University&oldid=678456" Categories: Clean Energy Organizations

497

Energy Secretary Bodman Leads US Delegation to International Energy Agency  

Broader source: Energy.gov (indexed) [DOE]

Secretary Bodman Leads US Delegation to International Energy Secretary Bodman Leads US Delegation to International Energy Agency Ministerial Energy Secretary Bodman Leads US Delegation to International Energy Agency Ministerial May 2, 2005 - 12:41pm Addthis PARIS, FRANCE -- Secretary of Energy Samuel W. Bodman this week is leading the U.S. Delegation to the Ministerial Meeting of the International Energy Agency (IEA), being held in Paris. Secretary Bodman will emphasize three principles at the IEA Ministerial -- that energy security is a global concern requiring global solutions; that advanced technology is vital in solving the world's energy problems, and; that we must invest today to meet our energy goals for the future. "Energy security is a challenge not only for the United States, but for all nations as demand continues to grow around the world," Secretary Bodman

498

Department of Energy Recognizes Six Leading Organizations for Helping the  

Broader source: Energy.gov (indexed) [DOE]

Six Leading Organizations for Six Leading Organizations for Helping the U.S. 'Go Green' Department of Energy Recognizes Six Leading Organizations for Helping the U.S. 'Go Green' October 22, 2007 - 3:21pm Addthis 2007 National Green Power Supplier Award Winners WASHINGTON, DC - The U.S. Department of Energy (DOE) will recognize six leading organizations at the Seventh Annual Green Power Leadership Awards tonight in Philadelphia for advancing the development and use of "green power". These organizations are furthering the Bush Administration's efforts to reduce our Nation's dependence on foreign oil by increasing the use of clean, renewable energy. The DOE Green Power Supplier Awards are competitive, and recognize exceptional achievements in supporting increased market deployment of renewable energy technologies through green power

499

Improved Lining Material for Gasifiers Could Lead to Wider  

Broader source: Energy.gov (indexed) [DOE]

Improved Lining Material for Gasifiers Could Lead to Wider Improved Lining Material for Gasifiers Could Lead to Wider Commercialization of Clean and Efficient Energy Technology Improved Lining Material for Gasifiers Could Lead to Wider Commercialization of Clean and Efficient Energy Technology November 16, 2009 - 12:00pm Addthis Refractories removed from adjacent positions in a slagging gasifier. The NETL refractory (right) has approximately 50 percent more material remaining after the test. Refractories removed from adjacent positions in a slagging gasifier. The NETL refractory (right) has approximately 50 percent more material remaining after the test. Washington, DC - A new improved-performance refractory lining material developed by the Office of Fossil Energy's National Energy Technology Laboratory (NETL) has been successfully tested and could lead to greatly

500

Improved Lining Material for Gasifiers Could Lead to Wider  

Broader source: Energy.gov (indexed) [DOE]

Improved Lining Material for Gasifiers Could Lead to Wider Improved Lining Material for Gasifiers Could Lead to Wider Commercialization of Clean and Efficient Energy Technology Improved Lining Material for Gasifiers Could Lead to Wider Commercialization of Clean and Efficient Energy Technology November 16, 2009 - 12:00pm Addthis Refractories removed from adjacent positions in a slagging gasifier. The NETL refractory (right) has approximately 50 percent more material remaining after the test. Refractories removed from adjacent positions in a slagging gasifier. The NETL refractory (right) has approximately 50 percent more material remaining after the test. Washington, DC - A new improved-performance refractory lining material developed by the Office of Fossil Energy's National Energy Technology Laboratory (NETL) has been successfully tested and could lead to greatly