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Note: This page contains sample records for the topic "driver cr eek" from the National Library of EnergyBeta (NLEBeta).
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1

GLADY CASSIT Y VANDALIA MURPHY CR EEK BU CKHN-CENT URY CLAY  

Gasoline and Diesel Fuel Update (EIA)

OWN OAKFORD TWENTY-MILE CR EEK CARMICH AELS GOULD KAN ZIGG H ILL CADIZ LEOPOLD MT DAVIS BEARSVILLE AU GU STA FAYETT E C ITY FINK CR EEK HEADSVILLE CAMERON-GARNER TERRA ALTA...

2

WH ITNEY CAN YON-CART ER CR K YELLOW CR EEK_WY_D PIN EVIEW AN  

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

Gas, Energy Information Administration pursuant to studies required by Section 604 of the Energy Policy and Conservation Act Amendments of 2000 (P.L. 106-469). The boundaries are...

3

Observation of the Helium 7 {Lambda} hypernucleus by the (e,e'K+) reaction  

SciTech Connect

An experiment with a newly developed high-resolution kaon spectrometer (HKS) and a scattered electron spectrometer with a novel configuration was performed in Hall C at Jefferson Lab (JLab). The ground state of a neutron-rich hypernucleus, He 7 {Lambda}, was observed for the first time with the (e,e'K+) reaction with an energy resolution of ~0.6 MeV. This resolution is the best reported to date for hypernuclear reaction spectroscopy. The He 7 {Lambda} binding energy supplies the last missing information of the A=7, T=1 hypernuclear iso-triplet, providing a new input for the charge symmetry breaking (CSB) effect of {Lambda} N potential.

Nakamura, Satoshi; Okayasu, Yuichi; Seva, Tomislav; Rodriguez, Victor; Baturin, Pavlo; Yuan, Lulin; Acha Quimper, Armando; Ahmidouch, Abdellah; Androic, Darko; Asaturyan, Arshak; Asaturyan, Razmik; Baker, Oliver; Benmokhtar, Fatiha; Boeglin, Wener; Bosted, Peter; Carlini, Roger; Chen, Chunhua; Christy, Michael; Cole, Leon; Danagoulian, Samuel; Daniel, Aji; Dharmawardane, Kahanawita; Egiyan, Kim; Elaasar, Mostafa; Ent, Rolf; Fenker, Howard; Fujii, Yu; Furic, Miroslav; Gan, Liping; Gaskell, David; Gasparian, Ashot; Gibson, Edward; Toshiyuki, Gogami; Gueye, Paul; Han, Yuncheng; Hashimoto, Osamu; Hiyama, E; Honda, D; Horn, Tanja; Hu, Bitao; Hungerford, Ed; Jayalath, Chandana; Jones, Mark; Johnston, Kathleen; Kalantarians, Narbe; Kanda, Hiroki; Kaneta, M; Kato, Seigo; Kato, Shigeki; Kawama, Daisuke; Keppel, Cynthia; Kramer, Laird; Lan, Kejian; Luo, Wei; Mack, David; Maeda, Kazushige; Malace, Simona; Margaryan, Amur; Marikyan, Gagik; Markowitz, Pete; Maruta, Tomofumi; Maruyama, Nayuta; Miyoshi, Toshinuobu; Mkrtchyan, Arthur; Mkrtchyan, Hamlet; Nagao, Sho; Navasardyan, Tigran; Niculescu, Gabriel; Niculescu, Maria-Ioana; Nonaka, Kenichi; Ohtani, Atsushi; Oyamada, Masamichi; Perez, Naipy; Petkovic, Tomislav; Randeniya, Kapugodage; Raue, Brian; Reinhold, Joerg; Rivera Castillo, Roberto; Roche, Julie; Sato, Yoshinori; Segbefia, Edwin; Simicevic, Neven; Smith, Gregory; Song, Yushou; Sumihama, Mizuki; Tadevosyan, Vardan; Takahashi, Toshiyuki; Tang, Liguang; Tsukada, Kyo; Tvaskis, Vladas; Vulcan, William; Wells, Steven; Wood, Stephen; Yan, Chen

2013-01-01T23:59:59.000Z

4

LOOKOU T U-87 U-70 PEC ONI C COM AN CHE CR EEK U-107 HUGO CLIFF  

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

Liquids Reserve Class Liquids Reserve Class No 2001 liquids reserves 0.1 - 10 Mbbl 10.1 - 100 Mbbl 100.1 - 1,000 Mbbl 1,000.1 - 10,000 Mbbl 10,000.1 - 100,000 Mbbl Denver Basin Outline The mapped oil and gas field boundary outlines were created by the Reserves and Production Division, Office of Oil and Gas, Energy Information Administration pursuant to studies required by Section 604 of the Energy Policy and Conservation Act Amendments of 2000 (P.L. 106-469). The boundaries are not informed by subsurface structural information. The data and methods used in their creation are detailed in a report, "Scientific Inventory of Onshore Federal Lands' Oil and Gas Resources and Reserves and the Extent and Nature of Restrictions to Their Development", prepared by the US Departments of Interior, Agriculture and Energy.

5

LOOKOU T U-87 U-70 PEC ONI C COM AN CHE CR EEK U-107 HUGO CLIFF  

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

Gas Reserve Class Gas Reserve Class No 2001 gas reserves 0.1 - 10 MMCF 10.1 - 100 MMCF 100.1 - 1,000 MMCF 1,000.1 - 10,000 MMCF 10,000.1 - 100,000 MMCF > 100,000 MMCF Denver Basin Outline The mapped oil and gas field boundary outlines were created by the Reserves and Production Division, Office of Oil and Gas, Energy Information Administration pursuant to studies required by Section 604 of the Energy Policy and Conservation Act Amendments of 2000 (P.L. 106-469). The boundaries are not informed by subsurface structural information. The data and methods used in their creation are detailed in a report, "Scientific Inventory of Onshore Federal Lands' Oil and Gas Resources and Reserves and the Extent and Nature of Restrictions to Their Development", prepared by the US

6

LOOKOU T U-87 U-70 PEC ONI C COM AN CHE CR EEK U-107 HUGO CLIFF  

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

BOE Reserve Class BOE Reserve Class No 2001 reserves 0.1 - 10 MBOE 10.1 - 100 MBOE 100.1 - 1,000 MBOE 1,000.1 - 10,000 MBOE 10,000.1 - 100,000 MBOE > 100,000 MBOE Denver Basin Outline The mapped oil and gas field boundary outlines were created by the Reserves and Production Division, Office of Oil and Gas, Energy Information Administration pursuant to studies required by Section 604 of the Energy Policy and Conservation Act Amendments of 2000 (P.L. 106-469). The boundaries are not informed by subsurface structural information. The data and methods used in their creation are detailed in a report, "Scientific Inventory of Onshore Federal Lands' Oil and Gas Resources and Reserves and the Extent and Nature of Restrictions to Their Development", prepared by the US

7

Drivers and Resources  

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

Drivers and Resources Regulatory Drivers National Laws Executive Orders DOE Orders and Directives Information Resources DOE P2 Web Sites Other P2 Web Sites Environmental...

8

Blanchard Cr JohnsonGulch  

E-Print Network (OSTI)

Whale Cr Tepee Cr Thoma Cr KintlaCr Logg ing Cr Anaconda Cr Bo wmanCr Kintla Cr Cam a s Cr A naco nda

9

Blanchard Cr JohnsonGulch  

E-Print Network (OSTI)

Kintla Cr Lo gging Cr Anaconda Cr B owmanCr Kintla Cr Ca mas Cr Ana conda Cr SFkShortyCrShorty Cr Mc

10

Double domino driver  

DOE Patents (OSTI)

The double domino driver is fully differential and is optimized for low switching noise and power. The noise behavior and power dissipation is improved by limiting the signal swing. The domino driver consists of a combination of mini drivers, each of which is switched on in two steps. In the first step a voltage equal to a fraction of the supply voltage propagates through the chain of mini drivers and turn them partially on. In the second step the voltage is increased to its maximum value and is made to propagate through the chain, turning the mini drivers completely on. The rise and fall time of the output signal can be increased by adding mini drivers. For a 5 volt supply voltage with 5 mini drivers the switching noise in decreased to levels less than 100 micro volts. The power dissipation with this driver is least as compared to ECL and other logic systems. The double domino driver is useful in communication and VLSI systems.

Vanstraelen, G.F.

1992-01-01T23:59:59.000Z

11

DOE DRIVER LISTING  

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

DRIVER LISTING DRIVER LISTING 1. The lines that have been redlined are orders that have been cancelled and not replaced with anything else. 2. This list was current as of 1/1/98. DRIVERTYPE DRIVERCODE TITLE REV_DATE EO ACQUISITION EO 12873, Federal Acquisition, Recycling, and Waste Prevention 09/25/1994 EO ALTERNATIVE FUEL EO 12844, Federal Use of Alternative Fueled Vehicles 09/25/1994 EO COMPUTER EO 12845, Requiring Agencies to Purchase Energy Efficient Compute 09/25/1994 EO CULTURAL EO 11593, Protection & Enhancement of Cultural Environment 09/25/1994 EO ENV DAMAGE EO 12286, Response to Environmental Damage 09/25/1994 EO ENV QUALITY EO 11991, Protect/Enhancement of Environmental Quality 09/25/1994 EO ENV SAFEGUARDS EO 12342, Env. Safeguards/Animal Damage Control on Federal Lands 09/25/1994

12

Approaches to enhance driver situational assessment aids  

E-Print Network (OSTI)

Collision warning systems encounter a fundamental trade-off between providing the driver more time in which to respond and alerting the driver unnecessarily. The probability that a driver successfully avoids a hazard ...

Jones, Eric M. (Eric Michael)

2007-01-01T23:59:59.000Z

13

Regulatory Drivers | Department of Energy  

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

Regulatory Drivers Regulatory Drivers Regulatory Drivers Statutes and Regulations Relating to Legacy Management Code of Federal Regulations (CFR) Title 10: Energy "Licensing Requirements for Land Disposal of Radioactive Waste," 10 CFR 61 "Occupational Radiation Protection," 10 CFR 835 Title 40: Protection of Environment "National Primary Drinking Water Regulations," 40 CFR 141 "Standards for Owners and Operators of Hazardous Waste Treatment, Storage and Disposal Facilities," 40 CFR 264 "National Oil and Hazardous Substances Pollution Contingency Plan," 40 CFR 300 Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA)/Resource Conservation and Recovery Act (RCRA) "Comprehensive Environmental Response, Compensation, and Liability

14

Truck Driver Scheduling in the European Union  

Science Conference Proceedings (OSTI)

Since April 2007 working hours of truck drivers in the European Union are controlled by regulation (EC) No. 561/2006. According to the new regulation, road transport undertakings must organise the work of drivers in a way that drivers are able to comply ... Keywords: drivers' working hours, regulation (EC) No. 561/2006, vehicle scheduling

Asvin Goel

2010-11-01T23:59:59.000Z

15

UWB dual burst transmit driver  

SciTech Connect

A dual burst transmitter for ultra-wideband (UWB) communication systems generates a pair of precisely spaced RF bursts from a single trigger event. An input trigger pulse produces two oscillator trigger pulses, an initial pulse and a delayed pulse, in a dual trigger generator. The two oscillator trigger pulses drive a gated RF burst (power output) oscillator. A bias driver circuit gates the RF output oscillator on and off and sets the RF burst packet width. The bias driver also level shifts the drive signal to the level that is required for the RF output device.

Dallum, Gregory E. (Livermore, CA); Pratt, Garth C. (Discovery Bay, CA); Haugen, Peter C. (Livermore, CA); Zumstein, James M. (Livermore, CA); Vigars, Mark L. (Livermore, CA); Romero, Carlos E. (Livermore, CA)

2012-04-17T23:59:59.000Z

16

Resonant Power MOSFET Driver for LED Lighting.  

E-Print Network (OSTI)

??LED lighting has a promising future in consumer markets. Many researchers have conducted researches to improve the LED driver efficiencies. In this thesis, a computer… (more)

Tuladhar, Looja R.

2009-01-01T23:59:59.000Z

17

Efficient Driver for Dimmable White LED Lighting.  

E-Print Network (OSTI)

??A high efficiency driver circuit is proposed for Light Emitting Diode (LED) lamps with dimming feature. The current regulation is accomplished by processing partial power… (more)

Yang, Wen-ching

2011-01-01T23:59:59.000Z

18

DOE Driver Listing | Department of Energy  

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

DOE Driver Listing More Documents & Publications Completed EISs Technical Standards, DOE Orders and Applicable CFRsDEAR Crosswalk - February 2, 2002 WaiversByPetitioner.pdf...

19

IEP - Carbon Dioxide: Regulatory Drivers  

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

IEP - Carbon Dioxide (CO2) Regulatory Drivers In July 7, 2009 testimony before the U.S. Senate Committee on Environment and Public Works, Secretary of Energy Steven Chu made the following statements:1 "...Overwhelming scientific evidence shows that carbon dioxide from human activity has increased the atmospheric level of CO2 by roughly 40 percent, a level one- third higher than any time in the last 800,000 years. There is also a consensus that CO2 and other greenhouse gas emissions have caused our planet to change. Already, we have seen the loss of about half of the summer arctic polar ice cap since the 1950s, a dramatically accelerating rise in sea level, and the loss of over two thousand cubic miles of glacial ice, not on geological time scales but over a mere hundred years.

20

In-car Airway Options for NASCAR Drivers  

E-Print Network (OSTI)

Medicine Background: “Stock car” drivers may require anpresentation pregnancy. In-car Airway Options for NASCARhelmeted, and apneic stock car driver simulation model.

Dyreyes, Jonathan Q; Grange, Jeff; Smith, Dustin; Jin, Peter; Guldner, Greg

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "driver cr eek" 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

Enhanced Driver Requirements for WIPP Shipments - Fact Sheet  

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

. a critical step toward solving the nation's nuclear waste disposal problem Enhanced Driver Requirements for WIPP Shipments Waste Isolation Pilot Plant (WIPP), Driver Hiring...

22

5 Kilometers WILDLIFE AREA  

E-Print Network (OSTI)

Creek Cre ek Creek Creek S toneLagoon Creek Creek Creek Bridge Cr eek McDo na ld Tom Redwood Creek Redw

23

Retail Price Drivers and their Financial Consequences  

E-Print Network (OSTI)

making the data available. Retail Price Drivers and their Financial Consequences What are the drivers of retailers ' prices and what, if any, are their financial consequences? The results of a large-scale quantitative analysis show that retail prices are mainly driven by pricing history (50%), acquisition costs (25%), and demand feedback (12.5%). In contrast to pricing history, demand-based pricing is associated with higher retailer (and manufacturer) financial performance. The remaining price drivers: category management, store traffic, and store brand performance, affect manufacturer and retailer performance in more complex ways.

Shuba Srinivasan; Koen Pauwels; Vincent Nijs; Mike Hanssens; Carl Mela; Scott Neslin For Comments; Suggestions The Paper

2003-01-01T23:59:59.000Z

24

NPP and Driver Data for Ecosystem  

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

EMDI Data Revised Data Set: NPP Multi-Biome: NPP and Driver Data for Ecosystem Model-Data Intercomparison Effective Date of Revision: June 17, 2004 Data Set Citation: Olson, R. J.,...

25

A 3 MEGAJOULE HEAVY ION FUSION DRIVER  

E-Print Network (OSTI)

Research, Office of Inertia! Fusion, Research Division ofA 3 MEGAJOULE HEAVY ION FUSION DRIVER* A. Faltens, E. Hoyer,Research, Office of Inertial Fusion, Research Division of

Faltens, A.

2010-01-01T23:59:59.000Z

26

Physics at a new Fermilab proton driver  

SciTech Connect

In 2004, motivated by the recent exciting developments in neutrino physics, the Fermilab Long Range Planning Committee identified a new high intensity Proton Driver as an attractive option for the future. At the end of 2004 the APS ''Study on the Physics of Neutrinos'' concluded that the future US neutrino program should have, as one of its components, ''A proton driver in the megawatt class or above and neutrino superbeam with an appropriate very large detector capable of observing Cp violation and measuring the neutrino mass-squared differences and mixing parameters with high precision''. The presently proposed Fermilab Proton Driver is designed to accomplish these goals, and is based on, and would help develop, Linear Collider technology. In this paper the Proton Driver parameters are summarized, and the potential physics program is described.

Geer, Steve; /Fermilab

2006-04-01T23:59:59.000Z

27

NUREG/CR-6853  

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

NUREG/CR-6853 Comparison of Average Transport and Dispersion Among a Gaussian, a Two-Dimensional, and a Three-Dimensional Model Lawrence Livermore National Laboratory U.S. Nuclear Regulatory Commission Office of Nuclear Regulatory Research Washington, DC 20555-0001 NUREG/CR-6853 Comparison of Average Transport and Dispersion Among a Gaussian, a Two-Dimensional, and a Three-Dimensional Model Manuscript Completed: October 2004 Date Published: October 2004 Prepared by C.R. Molenkamp (LLNL), N.E. Bixler, C.W. Morrow (SNL), J.V. Ramsdell, Jr., (PNNL), J.A. Mitchell (NRC) Atmospheric Science Division Sandia National Laboratories Lawrence Livermore National Laboratory Albuquerque, NM 87185-0748 Livermore, CA 94550

28

Alternative Fuels Data Center: Techniques for Drivers to Conserve Fuel  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Techniques for Drivers Techniques for Drivers to Conserve Fuel to someone by E-mail Share Alternative Fuels Data Center: Techniques for Drivers to Conserve Fuel on Facebook Tweet about Alternative Fuels Data Center: Techniques for Drivers to Conserve Fuel on Twitter Bookmark Alternative Fuels Data Center: Techniques for Drivers to Conserve Fuel on Google Bookmark Alternative Fuels Data Center: Techniques for Drivers to Conserve Fuel on Delicious Rank Alternative Fuels Data Center: Techniques for Drivers to Conserve Fuel on Digg Find More places to share Alternative Fuels Data Center: Techniques for Drivers to Conserve Fuel on AddThis.com... More in this section... Idle Reduction Parts & Equipment Maintenance Driving Behavior Management Strategies Driver Techniques Fleet Rightsizing

29

IEP - Advanced NOx Emissions Control: Regulatory Drivers  

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

IEP - Advanced NOx Emissions Control Regulatory Drivers Regulatory Drivers for Existing Coal-Fired Power Plants Regulatory and legislative requirements have predominantly driven the need to develop NOx control technologies for existing coal-fired power plants. The first driver was the Title IV acid rain program, established through the 1990 Clean Air Act Amendments (CAAA). This program included a two-phase strategy to reduce NOx emissions from coal-fired power plants – Phase I started January 1, 1996 and Phase II started January 1, 2000. The Title IV NOx program was implemented through unit-specific NOx emission rate limits ranging from 0.40 to 0.86 lb/MMBtu depending on the type of boiler/burner configuration and based on application of LNB technology.

30

Addressing Inappropriate Driver Behavior at Rail-Highway Crossings  

E-Print Network (OSTI)

Ragland. Driver Behavior at Rail Crossings. Draft Report, 5.T.G. Driver Behavior at Rail- Highway Grade Crossings: Aof Locomotive Horns at Highway-Rail Grade Crossings: Final

Cooper, Douglas L.; Ragland, David R

2008-01-01T23:59:59.000Z

31

Detection of Driver Fatigue Caused by Sleep Deprivation  

E-Print Network (OSTI)

This paper aims to provide reliable indications of driver drowsiness based on the characteristics of driver-vehicle interaction. A test bed was built under a simulated driving environment, and a total of 12 subjects ...

Coughlin, Joseph F.

32

Detecting driver phone use leveraging car speakers  

Science Conference Proceedings (OSTI)

This work addresses the fundamental problem of distinguishing between a driver and passenger using a mobile phone, which is the critical input to enable numerous safety and interface enhancements. Our detection system leverages the existing car stereo ... Keywords: acoustic ranging, bluetooth, car speakers, driving safety, location classification, smartphone

Jie Yang; Simon Sidhom; Gayathri Chandrasekaran; Tam Vu; Hongbo Liu; Nicolae Cecan; Yingying Chen; Marco Gruteser; Richard P. Martin

2011-09-01T23:59:59.000Z

33

ECOdriving - Widespread Implementation for Learner Drivers and Licensed  

Open Energy Info (EERE)

ECOdriving - Widespread Implementation for Learner Drivers and Licensed ECOdriving - Widespread Implementation for Learner Drivers and Licensed Drivers (ECOWILL) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: ECOdriving - Widespread Implementation for Learner Drivers and Licensed Drivers (ECOWILL) Agency/Company /Organization: Austrian Energy Agency Focus Area: Fuels & Efficiency Topics: Best Practices Website: www.ecodrive.org/ The ECOWILL project aims to reduce carbon emissions by up to 8 Mt until 2015 by boosting the application of eco-driving across Europe. The project will roll out training programs for licensed drivers in 13 European countries. ECOWILL also promotes the education of eco-driving for learner drivers. This website provides information about eco-driving, including country-specific activities.

34

NETL: IEP - Air Quality Research: Regulatory Drivers  

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

Regulatory Drivers Regulatory Drivers DOE/NETL’s Air Quality Research Program is in direct response to the need to ensure that fossil-fuel-fired power systems continue to meet current and future environmental requirements. Specific environmental regulatory requirements driving this research are briefly summarized below: I. Clean Air Act (Including 1990 Amendments) Title I - Air Pollution Prevention and Control Part A - Air Quality and Emission Limitations Sect. 109 - National Ambient Air Quality Standards In July 1997 EPA promulgated new standards for particulate matter finer than 2.5 micrometers (PM2.5) and revised the ambient ozone standards. Sect. 111 - Standards of Performance for New Stationary Sources Part C - Prevention of Significant Deterioration of Air Quality

35

Projecting Fatalities in Crashes involving Older Drivers  

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

Crashes Crashes Projecting Fatalities in Crashes Involving Older Drivers Involving Older Drivers Oak Oak Ridge Ridge National Laboratory National Laboratory, USA USA Presented at Presented at the the 17th 17th World Congress of the International World Congress of the International Association Association for Accident and Traffic Medicine for Accident and Traffic Medicine May May 30, 30, 2000, 2000, Stockholm, Sweden Stockholm, Sweden ORNL ORNL P. P. Hu Hu D. D. Jones Jones T. T. Reuscher Reuscher R. R. Schmoyer Schmoyer T. T. Truett Truett General General Motors Motors Annette Annette Irwin Irwin U.S. U.S. DOTransportation DOTransportation Jesse Jesse Blatt Blatt Acknowledgements Acknowledgements Objective Objective This This research research is is funded funded by by a a Cooperative Cooperative Research

36

General aspects of driver-car interaction  

Science Conference Proceedings (OSTI)

General aspects of Human Machine Interface (HMI) are very hard to be defined. They are the on the top level of interest when studying the reliability of the human operators. The first part of our article deals with general problems of HMI and its application ... Keywords: EEG, HMI, car simulation, civil aviation authority(CAA), controlled flight into terrain (CFIT), driver-car interaction, human factors, human performance and limitations (HPL)

Mirek Svítek; Petr Bouchner; Jind?ich Krása; Jin?ich Sadil; Zuzana B?linová; Jakub Rajnoch; Václav Vodrážka

2005-03-01T23:59:59.000Z

37

Alternative Fuel Driver Training Companion Manual  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Regulated Fleets Regulated Fleets Alternative Fuel Driver Training Companion Manual Notice This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product,

38

Minimizing driver's irritation at a roadblock  

E-Print Network (OSTI)

Urban traffic is a logistic issue which can have many societal implications, especially when, due to a too high density of cars, the network of streets of a city becomes blocked, and consequently, pedestrians, bicycles, and cars start sharing the same traffic conditions potentially leading to high irritations (of people) and therefore to chaos. In this paper we focus our attention on a simple scenario: We model the driver's irritation induced by the presence of a roadblock. As a natural generalization, we extend the model for the two one-way crossroads traffic presented by M.E. Fouladvand and M. Nematollahi to that of a roadblock. Our discrete model defines and minimizes the total waiting time. The novelty lies in introducing the (total) driver's irritation and its minimization. Finally, we apply our model to a real-world situation: rush hour traffic in Hillegom, The Netherlands. We observe that minimizing the total waiting time and minimizing the total driver's irritation lead to different traffic light stra...

Vleugels, C J J; Anthonissen, M J H; Seidman, T I

2013-01-01T23:59:59.000Z

39

\Reuschertrolder driver projectwriteupDeb finalchap08.PDF  

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

8 - 1 8 - 1 8. FATAL CRASH RATES 8.1 MODELING FATALITY RATES FOR OLDER DRIVERS Data limitations impeded direct, reliable observation of all accidents, but accidents in which a fatality occurs are reported considerably more thoroughly and consistently than crashes not involving a fatality. Accordingly, our principal measure of fatalities is older driver fatalities, meaning the exact number of older drivers killed in accidents. We also developed another fatality measure which captured the total number of deaths involved in crashes involving an older driver, but its interpretability lacks clarity because of insufficient information on assignment of fault in crashes. The first of the two fatal crash rate concepts we call "driver risk," or the driver fatality

40

Feasibility of a driver performance data acquisition system  

Science Conference Proceedings (OSTI)

The National Highway Traffic Safety Administration (NHTSA) envisions many future situations in which the effectiveness and consequences of new intelligent vehicle-highway systems technologies will need to be studied in actual production vehicles. Such studies will enable evaluations in vehicles which are familiar to drivers. These studies would be future enhanced by the availability of an instrumentation package that can be easily installed in these vehicles to enable specific vehicle configurations of interest to be evaluated, thereby increasing the variety of vehicle options that are available for study. Ideally, an approach is needed that would allow data collection from a variety of vehicle models and types, and would address the issue of driver familiarity. Such an approach is embodied in the concept of a driver performance data acquisition system that could be installed in a wide range of vehicles within a relatively short period of time. As a universally adaptable system, it would provide researchers with the ability to manually input data as well as directly record information on driver, vehicle, roadway, and environmental parameters. Furthermore, it would enable the measurement of driver performance in the driver`s own vehicle, thereby ensuring vehicle familiarity. In addition, it would be possible to measure driver performance in relation to any vehicle design characteristic at relatively little expense and effort, and would make it easy to update existing models of driver/vehicle behavior to reflect performance characteristics in vehicles of current manufacture.

Carter, R.J.; Spelt, P.F. [Oak Ridge National Lab., TN (United States); Goodman, M.J. [National Highway Traffic Safety Administration, Washington, DC (United States). Office of Crash Avoidance Research

1994-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "driver cr eek" 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

Natural Gas Markets: Recent Changes and Key Drivers  

U.S. Energy Information Administration (EIA)

U.S. Energy Information Administration Independent Statistics & Analysis www.eia.gov Natural Gas Markets: Recent Changes and Key Drivers for

42

\\Reuschertrolder driver projectwriteupDeb finalchap01.PDF  

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

Contributing to Premature Reduction or Cessation of Driving by Older Men and Women G.8 Investigations of Crashes and Casualties Associated with Older Drivers G.9 Remediation...

43

Fundamental Drivers of the Cost and Price of Operating Reserves  

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

Fundamental Drivers of the Cost and Price of Operating Reserves Marissa Hummon, Paul Denholm, Jennie Jorgenson, and David Palchak National Renewable Energy Laboratory Brendan Kirby...

44

\\Reuschertrolder driver projectwriteupDeb finalexecSumm.PD  

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

could be included in the model. * Develop three empirical models (percentage of drivers, miles driven, and crash rate) based on historical data. * Formulate assumptions on the...

45

Driver Circuit for White LED Lamps with TRIAC Dimming Control.  

E-Print Network (OSTI)

??An efficient Light Emitting Diode (LED) lamp driver circuit is proposed for retrofitting the conventionally used incandescent lamps with existing TRIAC dimmer. The dimming feature… (more)

Weng, Szu-Jung

2012-01-01T23:59:59.000Z

46

Drivers and Barriers in the Current Concentrated Solar Power...  

Open Energy Info (EERE)

Current Concentrated Solar Power (CSP) Market (Webinar) Focus Area: Solar Topics: Market Analysis Website: www.leonardo-energy.orgwebinar-drivers-and-barriers-current-csp-marke...

47

NETL: IEP - Mercury Emissions Control: Regulatory Drivers  

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

Regulatory Drivers Regulatory Drivers The Clean Air Act Amendments of 1990 (CAAA) brought about new awareness regarding the overall health-effects of stationary source fossil combustion emissions. Title III of the CAAA identified 189 pollutants, including mercury, as hazardous or toxic and required the Environmental Protection Agency (EPA) to evaluate their emissions by source, health effects and environmental implications, including the need to control these emissions. These pollutants are collectively referred to as air toxics or hazardous air pollutants (HAPs). The provisions in Title III specific to electric generating units (EGU) were comprehensively addressed by DOE's National Energy Technology Laboratory (NETL) and the Electric Power Research Institute (EPRI) in collaborative air toxic characterization programs conducted between 1990 and 1997. This work provided most of the data supporting the conclusions found in EPA's congressionally mandated reports regarding air toxic emissions from coal-fired utility boilers; the Mercury Study Report to Congress (1997)1 and the "Study of Hazardous Air Pollutant Emissions from Electric Utility Steam Generating Units -- Final Report to Congress" (1998).2 The first report identified coal-fired power plants as the largest source of human-generated mercury emissions in the U.S. and the second concluded that mercury from coal-fired utilities was the HAP of "greatest potential concern" to the environment and human health that merited additional research and monitoring.

48

IEP - Water-Energy Interface: Regulatory Drivers  

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

Regulatory Drivers Regulatory Drivers Several legislative acts are in place that could potentially impact water quality requirements and water use for fossil energy production as well as electricity generation. These acts regulate pollutant discharge and water intake directly and indirectly. Under regulations established by the United States Environmental Protection Agency (EPA), these Acts serve to maintain and improve the Nation's water resources for uses including but not limited to agricultural, industrial, nutritional, and recreational purposes. The Clean Water Act - The Federal Water Pollution Control Act, more commonly known as the Clean Water Act, provides for the regulation of discharges to the nation's surface waters. To address pollution, the act specifies that the discharge of any pollutant by any person is unlawful except when in compliance with applicable permitting requirements. Initial emphasis was placed on "point source" pollutant discharge, but 1987 amendments authorized measures to address "non-point source" discharges, including stormwater runoff from industrial facilities. Permits are issued under the National Pollutant Discharge Elimination System (NPDES), which designates the highest level of water pollution or lowest acceptable standards for water discharges. NPDES permits are typically administered by the individual states. With EPA approval, the states may implement standards more stringent than federal water quality standards, but may not be less stringent. Certain sections of the Act are particularly applicable to water issues related to power generation. These include:

49

Inertially confined fusion using heavy ion drivers  

Science Conference Proceedings (OSTI)

The various technical issues of HIF will be briefly reviewed in this paper. It will be seen that there are numerous areas in common in all the approaches to HIF. In the recent International Symposium on Heavy Ion Inertial Fusion, the attendees met in specialized workshop sessions to consider the needs for research in each area. Each of the workshop groups considered the key questions of this report: (1) Is this an appropriate time for international collaboration in HIF (2) Which problems are most appropriate for such collaboration (3) Can the sharing of target design information be set aside until other driver and systems issues are better resolved, by which time it might be supposed that there could be a relaxation of classification of target issues (4) What form(s) of collaboration are most appropriate, e.g., bilateral or multilateral (5) Can international collaboration be sensibly attempted without significant increases in funding for HIF The authors of this report share the conviction that collaboration on a broad scale is mandatory for HIF to have the resources, both financial and personnel, to progress to a demonstration experiment. Ultimately it may be possible for a single driver with the energy, power, focusibility, and pulse shape to satisfy the needs of the international community for target physics research. Such a facility could service multiple experimental chambers with a variety of beam geometries and target concepts.

Herrmannsfeldt, W.B. (Stanford Linear Accelerator Center, Menlo Park, CA (United States)); Bangerter, R.O. (Lawrence Berkeley Lab., CA (United States)); Bock, R. (Gesellschaft fuer Schwerionenforschung mbH, Darmstadt (Germany)); Hogan, W.J.; Lindl, J.D. (Lawrence Livermore National Lab., CA (United States))

1991-10-01T23:59:59.000Z

50

Inertially confined fusion using heavy ion drivers  

Science Conference Proceedings (OSTI)

The various technical issues of HIF will be briefly reviewed in this paper. It will be seen that there are numerous areas in common in all the approaches to HIF. In the recent International Symposium on Heavy Ion Inertial Fusion, the attendees met in specialized workshop sessions to consider the needs for research in each area. Each of the workshop groups considered the key questions of this report: (1) Is this an appropriate time for international collaboration in HIF? (2) Which problems are most appropriate for such collaboration? (3) Can the sharing of target design information be set aside until other driver and systems issues are better resolved, by which time it might be supposed that there could be a relaxation of classification of target issues? (4) What form(s) of collaboration are most appropriate, e.g., bilateral or multilateral? (5) Can international collaboration be sensibly attempted without significant increases in funding for HIF? The authors of this report share the conviction that collaboration on a broad scale is mandatory for HIF to have the resources, both financial and personnel, to progress to a demonstration experiment. Ultimately it may be possible for a single driver with the energy, power, focusibility, and pulse shape to satisfy the needs of the international community for target physics research. Such a facility could service multiple experimental chambers with a variety of beam geometries and target concepts.

Herrmannsfeldt, W.B. [Stanford Linear Accelerator Center, Menlo Park, CA (United States); Bangerter, R.O. [Lawrence Berkeley Lab., CA (United States); Bock, R. [Gesellschaft fuer Schwerionenforschung mbH, Darmstadt (Germany); Hogan, W.J.; Lindl, J.D. [Lawrence Livermore National Lab., CA (United States)

1991-10-01T23:59:59.000Z

51

Drivers of Variability in the South Asian Monsoon  

E-Print Network (OSTI)

Drivers of Variability in the South Asian Monsoon Announcement of Opportunity Outline Bids Deadline) jointly invite outline bid proposals for research on drivers of variability in the South Asian Monsoon. For ESSO-MoES, this activity forms part of their Monsoon Mission programme (http

Edinburgh, University of

52

Intercept: Profiling Windows Network Device Drivers* Manuel Mendona Nuno Neves  

E-Print Network (OSTI)

testing, or reverse engineering. Experi- ments using Ethernet, Wi-Fi and Bluetooth device drivers showIntercept: Profiling Windows Network Device Drivers* Manuel Mendonça Nuno Neves University of Lisboa, Faculty of Sciences, LASIGE, Portugal manuelmendonca@msn.com, nuno@di.fc.ul.pt Abstract. Device

Neves, Nuno

53

Renewable Energy Technology Costs and Drivers | Open Energy Information  

Open Energy Info (EERE)

Renewable Energy Technology Costs and Drivers Renewable Energy Technology Costs and Drivers Jump to: navigation, search Tool Summary Name: Renewable Energy Technology Costs and Drivers Agency/Company /Organization: National Renewable Energy Laboratory Sector: Energy Focus Area: Renewable Energy Topics: Finance, Market analysis, Technology characterizations Resource Type: Publications Website: prod-http-80-800498448.us-east-1.elb.amazonaws.com//w/images/6/63/RE_C Renewable Energy Technology Costs and Drivers Screenshot References: Renewable Energy Technology Costs and Drivers[1] Summary "Provided herein is a preliminary, high-level summary of future and projected cost estimates for 1) Biofuels, 2) Solar (PV & CSP), and 3) Vehicle Batteries. Cost estimates are dependent on various assumptions and

54

Prior BG/P Driver Information | Argonne Leadership Computing Facility  

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

Intrepid/Challenger/Surveyor Intrepid/Challenger/Surveyor Introducing Challenger Quick Reference Guide System Overview BG/P Driver Information Prior BG/P Driver Information Internal Networks Machine Environment FAQs Block and Job State Documentation Machine Partitions Data Transfer Data Storage & File Systems Compiling and Linking Queueing and Running Jobs Debugging and Profiling Performance Tools and APIs IBM References Software and Libraries Tukey Eureka / Gadzooks Policies Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] Prior BG/P Driver Information Prior BGP Driver Information This page contains information about the drivers and efixes currently installed on the ALCF resources Intrepid and Surveyor, as well as

55

A programmable CCD driver circuit for multiphase CCD operation  

Science Conference Proceedings (OSTI)

A programmable CCD driver circuit was designed to drive CCD's in multiphased modes. The purpose of the drive electronics was to operate developmental CCD imaging arrays for NASA's Moderate Resolution Imaging Spectrometer - Tiltable (MODIS-T). Five prototype arrays were designed. Valid's Graphics Editor (GED) was used to design the driver. With this driver design, any of the five arrays can be readout. Designing the driver with GED allowed functional simulation, timing verification, and certain packaging analyses to be done on the design before fabrication. The driver verified its function with the master clock running up to 10 MHz. This suggests a maximum rate of 400 Kpixels/sec. Timing and packaging parameters were verified. the design uses 54 TTL component chips.

Ewin, A.J.; Reed, K.V.

1989-02-01T23:59:59.000Z

56

Nonlinear transmission line based electron beam driver  

Science Conference Proceedings (OSTI)

Gated field emission cathodes can provide short electron pulses without the requirement of laser systems or cathode heating required by photoemission or thermionic cathodes. The large electric field requirement for field emission to take place can be achieved by using a high aspect ratio cathode with a large field enhancement factor which reduces the voltage requirement for emission. In this paper, a cathode gate driver based on the output pulse train from a nonlinear transmission line is experimentally demonstrated. The application of the pulse train to a tufted carbon fiber field emission cathode generates short electron pulses. The pulses are approximately 2 ns in duration with emission currents of several mA, and the train contains up to 6 pulses at a frequency of 100 MHz. Particle-in-cell simulation is used to predict the characteristic of the current pulse train generated from a single carbon fiber field emission cathode using the same technique.

French, David M.; Hoff, Brad W.; Tang Wilkin; Heidger, Susan; Shiffler, Don [Directed Energy Directorate, Air Force Research Laboratory, Kirtland AFB, New Mexico 87117 (United States); Allen-Flowers, Jordan [Program in Applied Mathematics, University of Arizona, Tucson, Arizona 85721 (United States)

2012-12-15T23:59:59.000Z

57

Improvement of SOFC Electrodes through Catalyst Infiltration & Control of Cr Volatilization from FeCr Components  

DOE Green Energy (OSTI)

This presentation discusses the improvement of SOFC electrodes through catalyst infiltration and control of Cr volatilization from FeCr components.

Visco, S.J.; Jacobson, C.; Kurokawa, H.; Sholklapper, T.; Lu, C.; De Jonghe, L.

2005-01-28T23:59:59.000Z

58

Offshore Wind Plant Balance-of-Station Cost Drivers and Sensitivities...  

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

Sensitivities OFFSHORE WIND PLANT BALANCE-OF-STATION COST DRIVERS AND SENSITIVITIES OFFSHORE WIND PLANT BALANCE-OF-STATION COST DRIVERS AND SENSITIVITIES G. Saur, B. Maples, B....

59

Energy for 500 Million Homes: Drivers and Outlook for Residential Energy Consumption in China  

E-Print Network (OSTI)

million Homes: Drivers and Outlook for Residential Energymillion Homes: Drivers and Outlook for Residential Energyconsumption, future outlook, end-use, bottom-up analysis

Zhou, Nan

2010-01-01T23:59:59.000Z

60

An Optimization Framework for Driver Feedback Systems  

SciTech Connect

Modern vehicles have sophisticated electronic control units that can control engine operation with discretion to balance fuel economy, emissions, and power. These control units are designed for specific driving conditions (e.g., different speed profiles for highway and city driving). However, individual driving styles are different and rarely match the specific driving conditions for which the units were designed. In the research reported here, we investigate driving-style factors that have a major impact on fuel economy and construct an optimization framework to optimize individual driving styles with respect to these driving factors. In this context, we construct a set of polynomial metamodels to reflect the responses produced in fuel economy by changing the driving factors. Then, we compare the optimized driving styles to the original driving styles and evaluate the effectiveness of the optimization framework. Finally, we use this proposed framework to develop a real-time feedback system, including visual instructions, to enable drivers to alter their driving styles in response to actual driving conditions to improve fuel efficiency.

Malikopoulos, Andreas [ORNL; Aguilar, Juan P. [Georgia Institute of Technology

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "driver cr eek" 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

WIPP Driver Makes History, Again | Department of Energy  

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

WIPP Driver Makes History, Again WIPP Driver Makes History, Again WIPP Driver Makes History, Again August 31, 2011 - 12:00pm Addthis Media Contact Deb Gill www.wipp.energy.gov 575-234-7270 CARLSBAD, N.M. - A brand-new shipping package arrived at the Department of Energy's Waste Isolation Pilot Plant (WIPP) during the early evening hours of August 25, but an all-too familiar face was behind the wheel of the vehicle carrying the package. Long-time WIPP driver Randy Anderson made history, again, when he guided the new TRUPACT-III on its maiden voyage from the Savannah River Site (SRS), located near Aiken, S.C., to the underground repository for defense-generated transuranic (TRU) waste near Carlsbad, N.M. "The trip was uneventful," said Anderson at the conclusion of the 1,534 mile trip from SRS to WIPP. "There were no mechanical problems and no

62

WIPP Driver Makes History, Again | Department of Energy  

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

Driver Makes History, Again Driver Makes History, Again WIPP Driver Makes History, Again August 31, 2011 - 12:00pm Addthis Media Contact Deb Gill www.wipp.energy.gov 575-234-7270 CARLSBAD, N.M. - A brand-new shipping package arrived at the Department of Energy's Waste Isolation Pilot Plant (WIPP) during the early evening hours of August 25, but an all-too familiar face was behind the wheel of the vehicle carrying the package. Long-time WIPP driver Randy Anderson made history, again, when he guided the new TRUPACT-III on its maiden voyage from the Savannah River Site (SRS), located near Aiken, S.C., to the underground repository for defense-generated transuranic (TRU) waste near Carlsbad, N.M. "The trip was uneventful," said Anderson at the conclusion of the 1,534 mile trip from SRS to WIPP. "There were no mechanical problems and no

63

Unemployed Truck Driver Trains for New Career in Weatherization |  

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

Truck Driver Trains for New Career in Weatherization Truck Driver Trains for New Career in Weatherization Unemployed Truck Driver Trains for New Career in Weatherization November 5, 2010 - 2:46pm Addthis Maya Payne Smart Former Writer for Energy Empowers, EERE What does this mean for me? Workers across the country are being retrained for careers in the new clean energy economy. Tyrone Bailey had been out of work for 14 months when an unemployment office staffer told him about a home-weatherization training program offered by the state of New Jersey. The former truck driver and construction worker jumped at the opportunity to acquire new skills and began training January 19. He graduated April 1 and won a position with GreenLight Solutions, a Montclair, New Jersey-based residential home improvement company just two weeks later.

64

Unemployed Truck Driver Trains for New Career in Weatherization |  

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

Unemployed Truck Driver Trains for New Career in Weatherization Unemployed Truck Driver Trains for New Career in Weatherization Unemployed Truck Driver Trains for New Career in Weatherization November 5, 2010 - 2:46pm Addthis Maya Payne Smart Former Writer for Energy Empowers, EERE What does this mean for me? Workers across the country are being retrained for careers in the new clean energy economy. Tyrone Bailey had been out of work for 14 months when an unemployment office staffer told him about a home-weatherization training program offered by the state of New Jersey. The former truck driver and construction worker jumped at the opportunity to acquire new skills and began training January 19. He graduated April 1 and won a position with GreenLight Solutions, a Montclair, New Jersey-based residential home improvement company just two weeks later.

65

Perspectives on AFVs: State and City Government Fleet Driver Survey  

DOE Green Energy (OSTI)

This survey collected information from state government and city government fleet drivers who operate light-duty alternative fuel vehicles(AFVs). The survey posed questions about AFV use, fuel use and availability and performance.

Whalen, M.; Eudy, L.; Coburn, T.

1999-04-05T23:59:59.000Z

66

V-217: Microsoft Windows NAT Driver ICMP Packet Handling Denial...  

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

SCUSSION: The vulnerability is caused due to an error within the Windows NAT Driver when handling ICMP packets and can be exploited to cause the system to stop responding IMPACT:...

67

Human Drivers of Climate Change: Energy, Economic Growth, and...  

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

Human Drivers of Climate Change: Energy, Economic Growth, and Trade Speaker(s): Steve Davis Date: October 1, 2012 - 4:00pm Location: 90-3122 Seminar HostPoint of Contact: Ryan...

68

Chromizing of 3Cr Steel  

Science Conference Proceedings (OSTI)

Grade 315 steel (Fe-2.9 Cr-1.7 W-0.7 Mo-0.3 Mn-0.3 Si-0.2 V-0.1 Ni-0.13 C-0.01 N) was chromized by the halide-activated pack cementation (HAPC) process. Key process parameters, i.e., coating temperatures and pack compositions, were investigated. Ammonium chloride-activated packs in the 700-1000 C range produced coatings nominally in the 1-8 {micro}m range, as determined by optical and scanning electron microscopy (SEM). Coatings applied in the 900-1000 C temperature range resulted in Cr-rich coatings. The predominant phase in the coating was identified as Cr23C6 by X-ray diffraction. In addition, the presence of chromium nitride, Cr2N, was observed in the coating. The power generation industry is faced with an ever-increasing demand for energy while simultaneously having to reduce carbon emissions. These goals can be facilitated by increasing plant efficiency through the use of higher operating temperatures and pressures. Traditional construction materials, e.g., the ferritic Grade 22 high strength low alloy steel, are limited to operations below {approx} 550 C. Therefore, new materials are required for future plants designed to operate up to 650 C and possibly higher. These new materials need to have improved tensile strength, ductility, toughness, corrosion resistance, and creep properties at elevated temperatures. Oak Ridge National Laboratory (ORNL) is investigating the oxidation and creep behavior of various coatings on Grade 315 steel (Fe-2.9 Cr-1.7 W-0.7 Mo-0.3 Mn-0.3 Si-0.2 V-0.1 Ni-0.13 C-0.01 N), a super-bainitic steel developed for superior creep properties. Thin, chemical vapor-deposited (CVD) aluminide coatings were used to compensate for the reduced corrosion and oxidation resistance that resulted from the low chromium content of the alloy. However, the aluminized Grade 315 alloys performed less-than-favorably under conditions relevant to fossil boilers, leading to the conclusion that higher chromium contents are required for the formation of corrosion-resistant oxide scales in these environments. The halide activated pack cementation (HAPC) process offers a promising low-cost and versatile alternative to CVD as a means of improving corrosion resistance via formation of a protective Cr-containing coating.

Ravi, Vilupanur [California State Polytechnic University, Pomona (Cal Poly Pomona); Harrison, Bradley [California State Polytechnic University, Pomona (Cal Poly Pomona); Koch, Jordan [California State Polytechnic University, Pomona (Cal Poly Pomona); Ly, Alexander [California State Polytechnic University, Pomona (Cal Poly Pomona); Schissler, Andrew [California State Polytechnic University, Pomona (Cal Poly Pomona); Pint, Bruce A [ORNL; Haynes, James A [ORNL

2011-01-01T23:59:59.000Z

69

CR  

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

MASSIE MASSIE SANTOS BALLON The Sequencing, Finishing, Analysis in the Future Meeting first convened in Santa Fe, New Mexico five years ago. Back then, the conference title was much shorter, and the crowd in attendance much smaller. The 2006 Meeting primarily focused on genome finishing technologies and how new sequencing technologies would impact them. Over the years, the Meeting's focus has moved from simply genome finishing to how next genera- tion sequencing technologies have affected genomics over- all in assembly, finishing, annotation and analysis. Claire Fraser-Liggett sum- marized the current state of genomic research succinctly in her opening keynote of the 5th annual meeting held June 2-4, 2010: "We're not in Kansas anymore, and yet we are." Addressing a record crowd of 250 attendees, Fraser- Liggett discussed current sequencing technologies and applications

70

CR  

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

MASSIE SANTOS BALLON MASSIE SANTOS BALLON The 5th Annual DOE Joint Genome Institute "Genomics of Energy & Environment" User Meeting started off on a provo- cative note: the first speaker, Dennis Hedgecock of the University of Southern California, compared eating an oyster to "kissing the sea on the lips." Given the meeting's focus on genomics for energy and the environment, Hedgecock was quick to note that Pacific oys- ters can annually sequester the amount of carbon equiva- lent to that produced by the African nation of Cameroon during the same period. He said researchers are interested in finding ways to boost the oyster's ability to capture carbon just as biofuels researchers are interested in using the idea of hybrid vigor to boost biomass production in energy crops.

71

CANTON LAKESHORE CANTON E BEST CON NEAUT GIDD INGS EAST N ELLSWORT  

Annual Energy Outlook 2012 (EIA)

RURAL RID GE ROWSBUR G SH ERRETT MON AC A QUEEN JUN CTION YELLOW CR EEK SMELTZ ER CAT FISH R UN POLK E JEROMESVILLE N FLORENCE-FIVE POINTS ATEN CLARINGTON MILLERSBURG...

72

BIG RU N INDIANA LAKESHORE RUN E LUMBER CIT Y WARSAW JOHNST  

Annual Energy Outlook 2012 (EIA)

CORN ER S GRU GAN NEBRASKA AR TEMAS MILL R UN DRIF TING TOBY CR EEK RUNVILLE MURRYSVILLE CAT FISH R UN HECKMAN HOLLOW KART HAUS WEST FIELD POT R IDGE PARSONSVILLE RED BRUSH BLU E...

73

Webster Co. Kanawha Co. Cabell C  

Annual Energy Outlook 2012 (EIA)

RED HOUSE DOR R RU N MILLWOOD TIME GREENSBORO FREEMANS CR EEK FISHER SLIGO BAR BER RIDGE HOM EST EAD TAN NER RICHAR DSON BU RGET TST OWN BR NT H SE-LCRN E MEH AFF Y WEBSTER...

74

Analyzing Vehicle Fuel Saving Opportunities through Intelligent Driver Feedback  

DOE Green Energy (OSTI)

Driving style changes, e.g., improving driver efficiency and motivating driver behavior changes, could deliver significant petroleum savings. This project examines eliminating stop-and-go driving and unnecessary idling, and also adjusting acceleration rates and cruising speeds to ideal levels to quantify fuel savings. Such extreme adjustments can result in dramatic fuel savings of over 30%, but would in reality only be achievable through automated control of vehicles and traffic flow. In real-world driving, efficient driving behaviors could reduce fuel use by 20% on aggressively driven cycles and by 5-10% on more moderately driven trips. A literature survey was conducted of driver behavior influences, and pertinent factors from on-road experiments with different driving styles were observed. This effort highlighted important driver influences such as surrounding vehicle behavior, anxiety over trying to get somewhere quickly, and the power/torque available from the vehicle. Existing feedback approaches often deliver efficiency information and instruction. Three recommendations for maximizing fuel savings from potential drive cycle improvement are: (1) leveraging applications with enhanced incentives, (2) using an approach that is easy and widely deployable to motivate drivers, and (3) utilizing connected vehicle and automation technologies to achieve large and widespread efficiency improvements.

Gonder, J.; Earleywine, M.; Sparks, W.

2012-06-01T23:59:59.000Z

75

Green Button Gamer: Driver Challenge | Open Energy Information  

Open Energy Info (EERE)

Green Button Gamer: Driver Challenge Green Button Gamer: Driver Challenge Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Green Button Gamer Agency/Company /Organization: Green Button Gamer Sector: Energy Focus Area: Vehicles Resource Type: Software/modeling tools User Interface: Website, Mobile Device Website: greenbuttongamer.com/ Web Application Link: greenbuttongamer.com/ Cost: Free OpenEI Keyword(s): Featured, Challenge Generated Green Button Gamer Screenshot References: Green Button Gamer[1] Challenge.gov[2] Challenge.gov Submission Page[3] Logo: Green Button Gamer The merger of social apps and gamification of real time vehicle and energy data. Overview GBG Driver Challenge allows users to compete with celebrities, friends, themselves and strangers on games that reinforce good driving habits and

76

Van Allen probes pinpoint driver of speeding electrons  

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

Van Allen probes pinpoint driver of speeding electrons Van Allen probes pinpoint driver of speeding electrons Van Allen probes pinpoint driver of speeding electrons Los Alamos researchers believe they have solved a lingering mystery about how electrons within Earth's radiation belt can suddenly become energetic enough to kill orbiting satellites. July 25, 2013 Artist's rendering of mechanism within Van Allen radiation belts An artist's rendering of a mechanism within the Van Allen radiation belts that can accelerate electrons to satellite-killing energies. The mechanism was discovered by a group of scientists using data from NASA's Van Allen Probes (formerly known as the Radiation Belt Storm Probes). Researchers, led by Los Alamos National laboratory space physicist Geoffrey Reeves, believe that electromagnetic waves within the Van Allen belts themselves

77

BEAM SIMULATIONS USING VIRTUAL DIAGNOSTICS FOR THE DRIVER LINAC  

Science Conference Proceedings (OSTI)

End-to-end beam simulations for the driver linac have shown that the design meets the necessary performance requirements including having adequate transverse and longitudinal acceptances. However, to achieve reliable operational performance, the development of appropriate beam diagnostic systems and control room procedures are crucial. With limited R&D funding, beam simulations provide a cost effective tool to evaluate candidate beam diagnostic systems and to provide a critical basis for developing early commissioning and later operational activities. We propose to perform beam dynamic studies and engineering analyses to define the requisite diagnostic systems of the driver linac and through simulation to develop and test commissioning and operational procedures.

R. C. York; X. Wu; Q. Zhao

2011-12-21T23:59:59.000Z

78

Microsoft Word - ContractManagementPlanningDRIVERS.doc  

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

Drivers for Ineffective and Effective Drivers for Ineffective and Effective Contract Management and Planning Ineffective Contract Management and Planning Effective Contract Management and Planning 1. Top management does not demonstrate a commitment to contract management planning. 2. Contract team members not clear on contract requirements. 3. Contract team members left out of planning process. 4. Lack of coordination and communication amongst the team members. 5. Contract team members not sure of roles, responsibilities, and limitations. 6. Contract team members not clear on how their responsibilities relate, or interact with, other team members. 1. Top management actively demonstrates a commitment to the contract management planning process. 2. Top management mandates training for the

79

Business Case Slide 2: Drivers for DU Use R&D  

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

Drivers for DU Use R&D Previous Slide Next Slide Table of Contents Drivers for DU Use R&D Compliance agreement with Ohio EPA Still in force; requires R&D effort and annual report...

80

Comparative Oncogenomic Analysis of Copy Number Alterations in Human and Zebrafish Tumors Enables Cancer Driver Discovery  

E-Print Network (OSTI)

The identification of cancer drivers is a major goal of current cancer research. Finding driver genes within large chromosomal events is especially challenging because such alterations encompass many genes. Previously, we ...

Zhang, GuangJun

Note: This page contains sample records for the topic "driver cr eek" 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

Design and implementation of A truecolor wide dimming single-pin LED driver  

E-Print Network (OSTI)

This thesis develops a single-pin LED driver used in wide screen displays. With the increasing size of the displays, a more compact multi-channel driver solution is needed for the increasing number of back light LEDs. This ...

Li, Zhen, M. Eng. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

82

APPLICATION NOTE 4393 Selecting HB LED Drivers for Automotive Lighting Applications  

E-Print Network (OSTI)

Abstract: This application note provides an overview of HB LED driver selection criteria for automotive lighting applications. It reviews HB LED driver topologies and recommends configurations for various automotive lighting applications, including interior lighting, exterior lighting, and display backlighting.

Brian Hedayati

2009-01-01T23:59:59.000Z

83

Utilization of Fuel Consumption Data in an Ecodriving Incentive System for Heavy-Duty Vehicle Drivers  

Science Conference Proceedings (OSTI)

Driver behavior is one of the greatest factors determining fuel consumption and, thus, carbon dioxide emissions from a heavy-duty vehicle. The difference in fuel consumption can be up to 30%, depending on the driver. Education, monitoring, and feedback ...

Heikki Liimatainen

2011-12-01T23:59:59.000Z

84

Final Report on the Fuel Saving Effectiveness of Various Driver Feedback Approaches  

SciTech Connect

This final report quantifies the fuel-savings opportunities from specific driving behavior changes, identifies factors that influence drivers' receptiveness to adopting fuel-saving behaviors, and assesses various driver feedback approaches.

Gonder, J.; Earleywine, M.; Sparks, W.

2011-03-01T23:59:59.000Z

85

Detection and tracking of driver's hands in real time  

Science Conference Proceedings (OSTI)

In this paper a complete driver's hands detection and tracking system suitable for working in real time conditions has been developed. The proposed system has been successfully tested in close-real world conditions in different scenarios on a very realistic ... Keywords: automotive application, image processing, real time, tracking

Raúl Crespo; Isaac Martín De Diego; Cristina Conde; Enrique Cabello

2010-11-01T23:59:59.000Z

86

Virable speed gas-turbine drivers gain in compressor use  

SciTech Connect

Variable-speed drivers, such as gas turbines, for reciprocating compressors enhance overall energy savings and a compressor's operational flexibility. This paper presents the main design aspects of gas-turbine systems and some examples from a recent installation in Germany.

Giacomelli, E.; Bernardini, F. (Nuovo Pignone, Florence (Italy)); Andree, H. (Pipeline Engineering GmbH, Essen (DE))

1990-11-19T23:59:59.000Z

87

Emerson: ENERGY STAR Referral (CR289E) | Department of Energy  

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

Emerson: ENERGY STAR Referral (CR289E) Emerson: ENERGY STAR Referral (CR289E) May 6, 2013 DOE referred the matter of Emerson-brand refrigerator, model CR289E, to the U.S....

88

Midea: ENERGY STAR Referral (MWF-08CR) | Department of Energy  

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

Midea: ENERGY STAR Referral (MWF-08CR) Midea: ENERGY STAR Referral (MWF-08CR) March 4, 2011 DOE referred the matter of Westpointe-brand room air conditioner model MWF-08CR, which...

89

Audit of Department of Energy Support Service Contracting, CR...  

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

Support Service Contracting, CR-B-95-06 Audit of Department of Energy Support Service Contracting, CR-B-95-06 Audit of Department of Energy Support Service Contracting, CR-B-95-06...

90

Fuel Economy Driver Interfaces: Usability Study of Display Component Concepts  

E-Print Network (OSTI)

A fuel economy driver interface (FEDI) gives drivers an indication of fuel usage or efficiency. Many passenger vehicles in recent model years have FEDIs, and they have been included in some vehicle models for decades. FEDIs present fuel economy information in a variety of forms. Some show fuel economy in miles per gallon (mpg) while others provide a relative measure of economy or provide an alert if fuel economy is especially poor. The appearances of FEDIs vary drastically between vehicle makes and models. FEDIs can provide numerical output, analog or digital gauges, bar charts, illuminator lamps, and a variety of other display features. With the recent emergence of high-resolution LCD screens in cars, detailed and complex color displays are possible, and these make feasible a variety of new FEDI concepts. FEDIs may even include vehicle-adaptive features that influence some aspect of vehicle performance in response to inefficient driver behaviors. While FEDIs have the potential to encourage efficient and safe driving, it is possible that the displays themselves cause distraction at the expense of attending to the roadway. Overall goals of this research program are to understand how characteristics of FEDIs influence driver behavior, and to identify best practices for FEDI design to meet drivers ’ needs and minimize distraction and undesirable behavior. Previous work on this project has included documenting the range of existing FEDI designs and conducting focus groups with vehicle owners to discuss fuel efficient driving behaviors and FEDI designs (Jenness, Singer, Walrath, & Lubar, 2009). The purpose of the usability study presented here was to narrow down the range of possible FEDI designs so that the most usable concepts could be tested in a subsequent driving simulator study.

Cs Intensity-changing Light

2010-01-01T23:59:59.000Z

91

Ris Energy Report 5 Global drivers for transformation of energy systems 3 Global drivers for transformation of energy  

E-Print Network (OSTI)

by simulta- neous dramatic increases in oil and gas prices. The role of energy supply as a key facilitator decade. Developing countries are devoting more attention to securing their future energy supplies drivers for future en- ergy development activities: · security of supply; · climate change; · energy

92

Driver Behavior at Rail Crossings: Cost-Effective Improvements to Increase Driver Safety at Public At-Grade Rail-Highway Crossings in California  

E-Print Network (OSTI)

14 5.1. Potential Rail Crossing19 DRIVER DECISIONS AT RAIL CROSSINGS: A CONCEPTUALFigure 1: Ten Year U.S. and California Rail-Highway Crossing

Cooper, Douglas L.; Ragland, David R.

2007-01-01T23:59:59.000Z

93

\Reuschertrolder driver projectwriteupDeb finalchap09.PDF  

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

9 - 1 9 - 1 9. ANALYSIS OF THE FATALITY PROJECTIONS In this chapter, we offer two views on the importance of various determinants of elderly driver fatalities. The first takes the perspective of the four major components of the projections: growths in population, increases in VMT, growth in the percent of the elderly population driving, and decreases in crash risk. We report these contributions to the fatality projections in Section 9.1. None of these major components is directly amenable to policy instruments, but many of the variables in the equations used to project those components do have some susceptibility to adjustment by public policy. In Section 9.2 we report the sensitivity of driver fatalities in 2025 to alternative scenarios based on alternative growth

94

Baseline scenario(s) for muon collider proton driver  

DOE Green Energy (OSTI)

This paper gives an overview of the various muon collider scenarios and the requirements they put on the Proton Driver. The required proton power is about 4-6MW in all the scenarios, but the bunch repetition rate varies between 12 and 65Hz. Since none of the muon collider scenarios have been simulated end-to-end, it would be advisable to plan for an upgrade path to around 10MW. Although the proton driver energy is flexible, cost arguments seems to favor a relatively low energy. In particular, at Fermilab 8GeV seems most attractive, partly due to the possibility of reusing the three existing fixed energy storage rings for bunch manipulations.

Jansson, Andreas; /Fermilab

2008-07-01T23:59:59.000Z

95

CR-B-02-02.PUB  

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

CR-B-02-02 CR-B-02-02 AUDIT REPORT U.S. DEPARTMENT OF ENERGY OFFICE OF INSPECTOR GENERAL OFFICE OF AUDIT SERVICES PROCUREMENT ADMINISTRATION AT BROOKHAVEN NATIONAL LABORATORY AUGUST 2002 U. S. DEPARTMENT OF ENERGY Washington, DC 20585 August 22, 2002 MEMORANDUM FOR THE ACTING MANGER, CHICAGO OPERATIONS OFFICE FROM: Rickey R. Hass, Director (Signed) Science, Energy, Technology, and Financial Audits Office of Audit Services Office of Inspector General SUBJECT: INFORMATION: Audit Report on "Procurement Administration at

96

The influence of thallium on the redox reaction CrT /CrS  

Science Conference Proceedings (OSTI)

Investigations on the kinetics and electrocatalysis of the CrT /CrS reaction were carried out. By means of cyclic voltammetry, it was discovered that the addition of thallium-I-chloride not only accelerates the CrT /CrS reaction in HC1 electrolytes catalytically, using graphite electrodes with small amounts of Au, but also raises th hydrogen overvoltage more than lead and bismuth, the heavy metal catalysts already tested in the practical redox cells. Investigations concerning the reaction rate, the influence of chrome ion concentrations, the electrolyte storage time, temperature, and the presence of iron are being conducted.

Cheng, D. Sh.; Hollax, E.

1985-02-01T23:59:59.000Z

97

Be a Safe and Efficient Winter Driver | Department of Energy  

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

Be a Safe and Efficient Winter Driver Be a Safe and Efficient Winter Driver Be a Safe and Efficient Winter Driver January 13, 2009 - 8:29am Addthis Drew Bittner Web Manager, Office of Energy Efficiency and Renewable Energy As I write this post, the Midwest and northern states are in the grip of a deep freeze. Temperatures are extremely low, and when wind chill is added in, it's barely possible to set foot outside. But if you are like me, you still need to get to work. For most of the country, that means driving-at least a little, if not an hour-plus commute each way. So why not make your vehicle efficient? We've been advising you on ways to make the home more energy smart, so let's talk about your car for a moment. One of the best ways to be energy smart with your car is also one of the wisest: drive sensibly. Aggressive driving wastes gas. Jackrabbit starts,

98

Be a Safe and Efficient Winter Driver | Department of Energy  

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

Be a Safe and Efficient Winter Driver Be a Safe and Efficient Winter Driver Be a Safe and Efficient Winter Driver January 13, 2009 - 8:29am Addthis Drew Bittner Web Manager, Office of Energy Efficiency and Renewable Energy As I write this post, the Midwest and northern states are in the grip of a deep freeze. Temperatures are extremely low, and when wind chill is added in, it's barely possible to set foot outside. But if you are like me, you still need to get to work. For most of the country, that means driving-at least a little, if not an hour-plus commute each way. So why not make your vehicle efficient? We've been advising you on ways to make the home more energy smart, so let's talk about your car for a moment. One of the best ways to be energy smart with your car is also one of the wisest: drive sensibly. Aggressive driving wastes gas. Jackrabbit starts,

99

Fuel Economy Driver Interfaces: Driving Simulator Study of Component Concepts  

E-Print Network (OSTI)

A fuel economy driver interface (FEDI) gives a driver an indication of fuel usage or efficiency. Many passenger vehicles in recent model years have FEDIs and they have been included in some vehicle models for decades. FEDIs present fuel economy information in a variety of forms. Some show fuel economy in miles per gallon (mpg) while others provide a relative measure of economy or provide an alert if fuel economy is especially poor. The appearances of FEDIs vary drastically between vehicle makes and models. FEDIs can provide numerical output, analog or digital gauges, bar charts, illuminator lamps, and a variety of other display features. With the recent emergence of high-resolution LCD screens in cars, detailed and complex color displays are possible, and these make feasible a variety of new FEDI concepts. FEDIs may even include vehicle-adaptive features that influence some aspect of vehicle performance in response to inefficient driver behaviors. While FEDIs have the potential to encourage efficient and safe driving, it is possible that the displays themselves might cause distraction at the expense

unknown authors

2010-01-01T23:59:59.000Z

100

CW high intensity non-scaling FFAG proton drivers  

SciTech Connect

Accelerators are playing increasingly important roles in basic science, technology, and medicine including nuclear power, industrial irradiation, material science, and neutrino production. Proton and light-ion accelerators in particular have many research, energy and medical applications, providing one of the most effective treatments for many types of cancer. Ultra high-intensity and high-energy (GeV) proton drivers are a critical technology for accelerator-driven sub-critical reactors (ADS) and many HEP programs (Muon Collider). These high-intensity GeV-range proton drivers are particularly challenging, encountering duty cycle and space-charge limits in the synchrotron and machine size concerns in the weaker-focusing cyclotrons; a 10-20 MW proton driver is not presently considered technically achievable with conventional re-circulating accelerators. One, as-yet, unexplored re-circulating accelerator, the Fixed-field Alternating Gradient, or FFAG, is an attractive alternative to the cyclotron. Its strong focusing optics are expected to mitigate space charge effects, and a recent innovation in design has coupled stable tunes with isochronous orbits, making the FFAG capable of fixed-frequency, CW acceleration, as in the classical cyclotron. This paper reports on these new advances in FFAG accelerator technology and references advanced modeling tools for fixed-field accelerators developed for and unique to the code COSY INFINITY.

Johnstone, C.; /Fermilab; Berz, M.; Makino, K.; /Michigan State U.; Snopok, P.; /IIT, Chicago

2011-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "driver cr eek" 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

EOCR CONTROL ROD AND DRIVER FUEL HYDRAULIC TESTS  

SciTech Connect

The EOCR prototype control rod, control rod drive, and driver fuel assembly were extensively tested in 500 deg F Santowax and 132 deg F water. These tests not only established the operating characteristics of these assemblies but also revealed a number of deficiencies in the various components. The modifications required were tested to establish the satisfactory performance of the modified components. Flow versus pressure differential measurements were performed on the driver fuel and the control rod. These measuremerts were also performed on various sized orifices in both assemblies to facilitate final orifice sizing when the final physics and heat transfer calculations have been completed. Scram insertion time curves were obtained for a variety of control rod configurations and test conditions. These curves not only established the scram insertion reliability of the control rod but also provided the basis for performing a control rod force analysis. Included are descriptions of the control rod, control rod drive, and driver fuel assembly together with descriptions of their method of operation. (auth)

Harrison, L.J.

1962-10-19T23:59:59.000Z

102

Be a Safe and Efficient Winter Driver | Department of Energy  

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

Be a Safe and Efficient Winter Driver Be a Safe and Efficient Winter Driver Be a Safe and Efficient Winter Driver January 13, 2009 - 8:29am Addthis Drew Bittner Web Manager, Office of Energy Efficiency and Renewable Energy As I write this post, the Midwest and northern states are in the grip of a deep freeze. Temperatures are extremely low, and when wind chill is added in, it's barely possible to set foot outside. But if you are like me, you still need to get to work. For most of the country, that means driving-at least a little, if not an hour-plus commute each way. So why not make your vehicle efficient? We've been advising you on ways to make the home more energy smart, so let's talk about your car for a moment. One of the best ways to be energy smart with your car is also one of the wisest: drive sensibly. Aggressive driving wastes gas. Jackrabbit starts,

103

V-217: Microsoft Windows NAT Driver ICMP Packet Handling Denial of Service  

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

7: Microsoft Windows NAT Driver ICMP Packet Handling Denial of 7: Microsoft Windows NAT Driver ICMP Packet Handling Denial of Service Vulnerability V-217: Microsoft Windows NAT Driver ICMP Packet Handling Denial of Service Vulnerability August 14, 2013 - 6:00am Addthis PROBLEM: A vulnerability was reported in the Windows NAT Driver PLATFORM: Windows Server 2012 ABSTRACT: This security update resolves a vulnerability in the Windows NAT Driver in Microsoft Windows REFERENCE LINKS: Secunia Advisory SA54420 Security Tracker ID 1028909 Microsoft Security Bulletin MS13-064 CVE-2013-3182 IMPACT ASSESSMENT: Medium DI SCUSSION: The vulnerability is caused due to an error within the Windows NAT Driver when handling ICMP packets and can be exploited to cause the system to stop responding IMPACT: Denial of Service SOLUTION: Vendor has released a security update

104

Analyzing Vehicle Fuel Saving Opportunities through Intelligent Driver Feedback  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

NREL/CP-5400-53864.Posted with permission. NREL/CP-5400-53864.Posted with permission. Presented at the 2012 SAE World Congress, 24-26 April 2012, Detroit, Michigan 2012-01-0494 Analyzing Vehicle Fuel Saving Opportunities Published through Intelligent Driver Feedback 04/16/2012 Jeffrey Gonder, Matthew Earleywine and Witt Sparks National Renewable Energy Laboratory doi:10.4271/2012-01-0494 ABSTRACT While it is well known that "MPG will vary" based on how one drives, little independent research exists on the aggregate

105

Projecting Fatalities in Crashes Involving Older Drivers, 2000-2025  

Science Conference Proceedings (OSTI)

As part of this research effort, we developed a new methodology for projecting elderly traffic crash fatalities. This methodology separates exposure to crashes from crash risk per se, and further divides exposure into two components, the number of miles driven and the likelihood of being a driver. This component structure permits conceptually different determinants of traffic fatalities to be projected separately and has thorough motivation in behavioral theory. It also permits finer targeting of particular aspects of projections that need improvement and closer linking of projections to possible policy instruments for influencing them.

Hu, P.S.

2001-03-23T23:59:59.000Z

106

The Outlook for Electricity Supply and Demand to 2035: Key Drivers  

U.S. Energy Information Administration (EIA)

U.S. Energy Information Administration Independent Statistics & Analysis www.eia.gov The Outlook for Electricity Supply and Demand to 2035: Key Drivers

107

Video-based lane estimation and tracking for driver assistance: Survey, system, and evaluation  

E-Print Network (OSTI)

2002. [6] W. Enkelmann, “Video-based driver assistance—FromK. Kalaitzakis, “A survey of video processing techniques forand thermal infrared video: Algorithms and experimental

McCall, J C; Trivedi, Mohan Manubhai

2006-01-01T23:59:59.000Z

108

THE DEVELOPMENT OF HEAVY-ION ACCELERATORS AS DRIVERS FOR INERTIALLY CONFINED FUSION  

E-Print Network (OSTI)

The f a s t breeder reactor should in theory solve the fuellight water reactors. The ICF driver could, in theory, serve

Herrmannsfeldt, W.b.

2010-01-01T23:59:59.000Z

109

Energy efficiency in the South Africa crude oil refining industry drivers, barriers and opportunities.  

E-Print Network (OSTI)

??Includes abstract. This study has explored a range of barriers, drivers and opportunities to improving energy performance in the South African crude oil refining industry,… (more)

Bergh, Caitlin.

2012-01-01T23:59:59.000Z

110

Utility Integrated Resource Planning: An Emerging Driver of New Renewable Generation in the Western United States  

E-Print Network (OSTI)

Risk: The Treatment of Renewable Energy in Western UtilityEmerging Driver of New Renewable Generation in the WesternEnergy Efficiency and Renewable Energy (Office of Planning,

Bolinger, Mark; Wiser, Ryan

2005-01-01T23:59:59.000Z

111

CR-B-02-01.PDF  

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

CR-B-02-01 CR-B-02-01 AUDIT REPORT FIXED-PRICE CONTRACTING FOR DEPARTMENT OF ENERGY CLEANUP ACTIVITIES OCTOBER 2001 U.S. DEPARTMENT OF ENERGY OFFICE OF INSPECTOR GENERAL OFFICE OF AUDIT SERVICES October 15, 2001 MEMORANDUM FOR THE ASSISTANT SECRETARY, OFFICE OF ENVIRONMENTAL MANAGEMENT FROM: Phillip L. Holbrook (Signed) Deputy Inspector General for Audit Services Office of Inspector General SUBJECT: INFORMATION: Audit Report on "Fixed-Price Contracting for Department of Energy Cleanup Activities" BACKGROUND As part of its Contract Reform effort, the Department of Energy (Department) acted to increase its use of

112

NETL: IEP - Coal Utilization By-Products : Regulatory Drivers  

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

Regulatory Drivers Regulatory Drivers Since 1993, Federal Regulations have treated the four major large-volume CUB's -- fly ash, bottom ash, boiler slag, and flue gas desulfurization (FGD) byproducts -- as solid wastes that do not warrant regulation as hazardous wastes under Subtitle C of RCRA, as long as these CUB’s were not co-managed with other waste materials. On May 22, 2000, EPA published a final Regulatory Determination [PDF-320KB] that retained the hazardous waste exemption for coal utilization by-products. EPA has concluded that fossil fuel combustion wastes do not warrant regulation as hazardous under Subtitle C of RCRA and is retaining the hazardous waste exemption for these wastes. However, the Agency has determined that national non-hazardous waste regulations under RCRA Subtitle D are needed for coal combustion wastes disposed in surface impoundments and landfills and used as minefilling. EPA also concluded beneficial uses of these wastes, other than for minefilling, pose no significant risk and no additional national regulations are needed. This determination affects more than 110 million tons of fossil fuel combustion wastes that are generated each year, virtually all from burning coal.

113

UWB multi-burst transmit driver for averaging receivers  

DOE Patents (OSTI)

A multi-burst transmitter for ultra-wideband (UWB) communication systems generates a sequence of precisely spaced RF bursts from a single trigger event. There are two oscillators in the transmitter circuit, a gated burst rate oscillator and a gated RF burst or RF power output oscillator. The burst rate oscillator produces a relatively low frequency, i.e., MHz, square wave output for a selected transmit cycle, and drives the RF burst oscillator, which produces RF bursts of much higher frequency, i.e., GHz, during the transmit cycle. The frequency of the burst rate oscillator sets the spacing of the RF burst packets. The first oscillator output passes through a bias driver to the second oscillator. The bias driver conditions, e.g., level shifts, the signal from the first oscillator for input into the second oscillator, and also controls the length of each RF burst. A trigger pulse actuates a timing circuit, formed of a flip-flop and associated reset time delay circuit, that controls the operation of the first oscillator, i.e., how long it oscillates (which defines the transmit cycle).

Dallum, Gregory E

2012-11-20T23:59:59.000Z

114

Hazard Evaluation for 244-CR Vault  

SciTech Connect

This document presents the results of a hazards identification and evaluation performed on the 244-CR Vault to close a USQ (USQ No.TF-98-0785, Potential Inadequacy in Authorization Basis (PIAB): To Evaluate Miscellaneous Facilities Listed In HNF-2503 And Not Addressed In The TWRS Authorization Basis) that was generated as part of an evaluation of inactive TWRS facilities.

GRAMS, W.H.

1999-08-19T23:59:59.000Z

115

NUREG/CR-6870 Consideration of Geochemical  

E-Print Network (OSTI)

mining and milling of uranium ore. Nonetheless, the use of leaching fluids to mine uranium contaminatesNUREG/CR-6870 Consideration of Geochemical Issues in Groundwater Restoration at Uranium In in Groundwater Restoration at Uranium In-Situ Leach Mining Facilities Manuscript Completed: December 2006 Date

116

Hanford Cr | VIMSS - Virtual Institute for Microbial Stress and...  

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

reactor building HCB (Visit Website) Hanford Chromium Bioremediation Field Investigations of Lactate-Stimulated Bioreduction of Cr(VI) to Cr(III) at Hanford 100H. The objective of...

117

Development of a questionnaire for identifying driver's personal values in driving  

Science Conference Proceedings (OSTI)

The speed behavior of drivers is influenced by their personal driving values. It is assumed that these personal values may differ between drivers. In this paper, we describe the development of the Personal Driving Values (PDV) questionnaire. The questionnaire ... Keywords: driving behavior, motivation, questionnaire

Qonita Shahab, Jacques Terken, Berry Eggen

2013-10-01T23:59:59.000Z

118

Simultaneous driver sizing and buffer insertion using a delay penalty estimation technique  

Science Conference Proceedings (OSTI)

To achieve timing closure in a placed design, buffer insertion and driver sizing are two of the most effective transforms that can be applied. Since the driver sizing solution and the buffer insertion solution affect each other, sub-optimal solutions ...

Charles Alpert; Chris Chu; Gopal Gandham; Miloš Hrki?; Jiang Hu; Chandramouli Kashyap; Stephen Quay

2002-04-01T23:59:59.000Z

119

Barriers and drivers for process innovation in the petrochemical industry: A case study  

Science Conference Proceedings (OSTI)

Process innovation and energy efficiency improvement are among the key options to reduce greenhouse gas emissions in petrochemicals production. This case study presents some of the main drivers and barriers to activities aimed at improving existing processes ... Keywords: Barriers, Case study, Drivers, Energy efficiency, O31 Innovation and Invention: Processes and Incentives, Process innovation, Strategic innovation

Tao Ren

2009-12-01T23:59:59.000Z

120

Drivers and Barriers in the Current Concentrated Solar Power (CSP) Market  

Open Energy Info (EERE)

Drivers and Barriers in the Current Concentrated Solar Power (CSP) Market Drivers and Barriers in the Current Concentrated Solar Power (CSP) Market (Webinar) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Drivers and Barriers in the Current Concentrated Solar Power (CSP) Market (Webinar) Focus Area: Solar Topics: Market Analysis Website: www.leonardo-energy.org/webinar-drivers-and-barriers-current-csp-marke Equivalent URI: cleanenergysolutions.org/content/drivers-and-barriers-current-concentr Language: English Policies: Regulations Regulations: Mandates/Targets This video teaches users about the four major types of concentrating solar power technologies (CSP): parabolic trough, tower concentrators, linear Fresnel lenses and dish engine systems. It also provides an overview of the trends in the market and research that should be performed in order to make

Note: This page contains sample records for the topic "driver cr eek" 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

\Reuschertrolder driver projectwriteupDeb finalchap10.PDF  

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

10 - 1 10 - 1 10. SUMMARY, CONCLUSIONS, AND RECOMMENDATIONS 10.1 SUMMARY OF FINDINGS As part of this research effort, we developed a new methodology for projecting elderly traffic crash fatalities. This methodology separates exposure to crashes from crash risk per se, and further divides exposure into two components, the number of miles driven and the likelihood of being a driver. This component structure permits conceptually different determinants of traffic fatalities to be projected separately and has thorough motivation in behavioral theory. It also permits finer targeting of particular aspects of projections that need improvement and closer linking of projections to possible policy instruments for influencing them. 10.1.1 Aggregate Fatality Projections

122

RESULTS FROM RFETS BUILDING 771 PROJECT Activity Name Driver  

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

RESULTS FROM RFETS BUILDING 771 PROJECT RESULTS FROM RFETS BUILDING 771 PROJECT Activity Name Driver Pre Review M-H/Yr Post Review Est M-H/Yr Est Potential Reallocable M-H/Yr Savings Est Cost Savings @$50/Hr Pre Review Frequency Suggested Frequency Bin Location Resource Organization Contamination survey in/around Gloveboxes not in use None 364 0 364 $18,200 Semi- annually N/A Cancellati on Radiation Protection Contamination Survey upon receipt of rad materials None 0 0 0 $0 As required N/A Cancellati on Radiation Protection A/S - Posting areas with potential > 10% DAC 10CFR835 2080 0 2080 $104,000 As required N/A Cancellati on Radiation Protection A/S - Use of respirators where potential for > 10% DAC 10CFR835 RCM Art 555 2080 0 2080 $104,000 As required N/A Cancellati on Radiation

123

Analysis of IFR driver fuel hot channel factors  

Science Conference Proceedings (OSTI)

Thermal-hydraulic uncertainty factors for Integral Fast Reactor (IFR) driver fuels have been determined based primarily on the database obtained from the predecessor fuels used in the IFR prototype, Experimental Breeder Reactor II. The uncertainty factors were applied to the channel factors (HCFs) analyses to obtain separate overall HCFs for fuel and cladding for steady-state analyses. A ``semistatistical horizontal method`` was used in the HCFs analyses. The uncertainty factor of the fuel thermal conductivity dominates the effects considered in the HCFs analysis; the uncertainty in fuel thermal conductivity will be reduced as more data are obtained to expand the currently limited database for the IFR ternary metal fuel (U-20Pu-10Zr). A set of uncertainty factors to be used for transient analyses has also been derived.

Ku, J.Y.; Chang, L.K.; Mohr, D.

1994-03-01T23:59:59.000Z

124

Combining radial basis function neural network and genetic algorithm to improve HDD driver IC chip scale package assembly yield  

Science Conference Proceedings (OSTI)

In recent years, the future trend of micro HDD driver IC for large capacity micro HDD is to become lighter, thinner, shorter and smaller. Among all the options available for micro HDD driver IC's assembly, warpage is an important issue related to micro ... Keywords: Assembly yield, Driver IC, GA, RBFN, Warpage

M. L. Huang; Y. H. Hung

2008-01-01T23:59:59.000Z

125

Sliding Mode Pulsed Averaging IC Drivers for High Brightness Light Emitting Diodes  

SciTech Connect

This project developed new Light Emitting Diode (LED) driver ICs associated with specific (uniquely operated) switching power supplies that optimize performance for High Brightness LEDs (HB-LEDs). The drivers utilize a digital control core with a newly developed nonlinear, hysteretic/sliding mode controller with mixed-signal processing. The drivers are flexible enough to allow both traditional microprocessor interface as well as other options such as “on the fly” adjustment of color and brightness. Some other unique features of the newly developed drivers include • AC Power Factor Correction; • High power efficiency; • Substantially fewer external components should be required, leading to substantial reduction of Bill of Materials (BOM). Thus, the LED drivers developed in this research : optimize LED performance by increasing power efficiency and power factor. Perhaps more remarkably, the LED drivers provide this improved performance at substantially reduced costs compared to the present LED power electronic driver circuits. Since one of the barriers to market penetration for HB-LEDs (in particular “white” light LEDs) is cost/lumen, this research makes important contributions in helping the advancement of SSL consumer acceptance and usage.

Dr. Anatoly Shteynberg, PhD

2006-08-17T23:59:59.000Z

126

The D9-4 experiment: Improving on the fast flux test facility driver pin  

SciTech Connect

The driver fuel system for the fast Flux Test Facility (FFTF) has proven to be a very robust and reliable spectrum liquid-metal reactor. A series of fuel assembly tests, has now been completed that incorporate unique improvements to extend the lifetime of the driver fuel design to increase the ease of fabrication, and to increase the breeding potential. The D9-4 test was a high-exposure fuel assembly in this series, and detailed examinations of this test have been completed. Commonalities with the standard FFTF driver fuel included dimensions and the use of uranium/plutonium mixed-oxide pellet fuel.

Chastain, S.A. (Westinghouse Hanford Company, Richland, WA (United States))

1993-01-01T23:59:59.000Z

127

A Retroreflective Sheeting Selection Technique for Nighttime Drivers' Needs  

E-Print Network (OSTI)

In this thesis, the author developed a retroreflective sheeting selection technique for traffic signs. Previous research was used to determine the luminance needed by drivers (demand luminance). The author used roadways scenarios to determine the amount of luminance the retroreflective sheeting on a sign would produce (supply luminance). A spreadsheet was developed to determine the performance of different retroreflective sheeting types by comparing the demand and supply luminance for specific roadway scenarios. Using the results of previous studies, three demand luminance levels were created: replacement, adequate, and desirable. The replacement level represents the level of luminance when a sign needs to be replaced and is 2.5 cd/m2. The adequate level is the recommended amount of luminance when installing new traffic signs and is 10 cd/m2. The desirable level is the approximate level when additional luminance has diminishing returns and is 30 cd/m2. Supply luminance on a specific traffic sign was determined by evaluating roadway geometries, sign placement, retroreflective sheeting type and vehicle data. The author reviewed roadway geometries in Texas to estimate typical number of lanes, shoulder widths and horizontal curvature in the US. Sign placement from the MUTCD determined the typical lateral placements, sign heights, and sign twists. Vehicle data included vehicle dimensions and headlamp type. Both the supply and demand luminance were determined for a specific viewing distance for a given scenario. The viewing distance is the distance a driver needs to read or recognize a sign to respond properly. In addition, the type of sign, alphanumeric or symbol, determined how this distance was calculated. The author developed four sign groups to calculate the distance required to read and respond to a traffic sign, including 1) Stop required, 2) Reduction in speed required, 3) Read the message provided, and 4) Change of lane required. For symbol signs, the minimum required visibility distance (MRVD) was determined for the sign group and for text signs, the viewing distance at a legibility index (LI) of 30 ft/in was found. At these distances, the author calculated the supply luminance and then compared it to the demand luminance levels to determine the performance level. The author developed the Retroreflective Sheeting Selection Spreadsheet (RSSS) to allow others to use the methodology presented in this thesis. RSSS allows users to input the roadway data, vehicle data, and sign data. RSSS takes this information and looks up the supply luminance for the scenario. RSSS then compares the supply luminance to the demand luminance levels and outputs the retroreflective sheeting performance level for the scenario.

Paulus, Susan C.

2010-05-01T23:59:59.000Z

128

Spin density distribution in CrCl/sub 3/ and CrBr/sub 3/  

SciTech Connect

The magnetization distribution in the layered ionic compounds CrCl/sub 3/ and CrBr/sub 3/ has been studied using polarized neutron diffraction. The results show that in both compounds approx. 20% of the magnetic moment is not located in 3d- like orbitals centered on the chromium ions. This reduction of the 3d moment sets a lower limit (A/sub ..pi..//sup 2/ > .04) on the square of the covalent admixture parameter. The spatial distribution of the delocalized moment has been studied by Fourier techniques which indicate a significant moment density between chromium ions in the chromium layers.

Brown, P.J.; Ziebeck, K.R.A.; Radhakrishna, P.

1982-01-01T23:59:59.000Z

129

\Reuschertrolder driver projectwriteupDeb finalchap07.PDF  

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

Person miles of travel includes travel by any mode or means; VMT/person implies that the person is Person miles of travel includes travel by any mode or means; VMT/person implies that the person is driving the vehicle. GM Project G.6 October 2000 7 - 1 7. VEHICLE MILES TRAVELED 7.1 HISTORICAL TRENDS IN ELDERLY DRIVING The total person miles of travel for all drivers in the United States increased from 2,026 billion miles in 1983 to 2,141 billion miles in 1990 to 2,663 billion miles in 1995, a total increase of 31.4% (U.S. Department of Transportation, 1997B). Historical driving trends among the elderly also show a general increase in the annual amount of VMT per person 1 (Figure 7.1). The age group of persons over 85 have seen the largest increases. Men over 85 drove an average of 1933 miles per year in 1983, a number which more than doubled to 5166

130

Proton Driver Linac for the Frankfurt Neutron Source  

SciTech Connect

The Frankfurt Neutron Source at the Stern-Gerlach-Zentrum (FRANZ) will deliver high neutron fluxes in the energy range of 1 to 500 keV. The Activation Mode provides a high averaged neutron flux created by a cw proton beam of up to 5 mA, while in the Compressor Mode intense neutron pulses of 1 ns length are formed with a repetition rate of up to 250 kHz. The Compressor Mode is well-suited for energy-dependent neutron capture measurements using the Time-of-Flight method in combination with a 4{pi} BaF{sub 2} detector array. The design of the proton driver linac for both operation modes is presented. This includes the volume type ion source, the ExB chopper located in the low energy section, the RFQ-IH combination for beam acceleration and the bunch compressor. Finally, the neutron production at the lithium-7 target and the resulting energy spectrum is described.

Wiesner, C.; Chau, L. P.; Dinter, H.; Droba, M.; Heilmann, M.; Joshi, N.; Maeder, D.; Metz, A.; Meusel, O.; Noll, D.; Podlech, H.; Ratzinger, U.; Reichau, H.; Schempp, A.; Schmidt, S.; Schweizer, W.; Volk, K.; Wagner, C. [Institut fuer Angewandte Physik, Goethe-Universitaet, Max-von-Laue-Str. 1, 60438 Frankfurt/Main (Germany); Reifarth, R. [Institut fuer Angewandte Physik, Goethe-Universitaet, Max-von-Laue-Str. 1, 60438 Frankfurt/Main (Germany); GSI Helmholtzzentrum fuer Schwerionenforschung, Planckstr. 1, 64291 Darmstadt (Germany); Mueller, I.

2010-08-04T23:59:59.000Z

131

Aiming to Green NASCAR's Future: Q&A with Driver Leilani Munter |  

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

Aiming to Green NASCAR's Future: Q&A with Driver Leilani Munter Aiming to Green NASCAR's Future: Q&A with Driver Leilani Munter Aiming to Green NASCAR's Future: Q&A with Driver Leilani Munter August 2, 2010 - 10:00am Addthis Leilani Münter adopts an acre of rainforest for every race she drives in. | Photo courtesy of Phil Cavali Leilani Münter adopts an acre of rainforest for every race she drives in. | Photo courtesy of Phil Cavali Lindsay Gsell "I feel being a part of NASCAR is where I can make a really big impact in terms of raising awareness about our environmental issues. I'm definitely bringing a new audience to NASCAR and working on bridging the gap between environmentalists and race fans." Leilani Munter Carbon Free Girl Leilani Münter is not your usual NASCAR driver. An avid environmentalist, Münter's goal is to spread an energy efficiency and

132

U-226: Linux Kernel SFC Driver TCP MSS Option Handling Denial of Service  

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

6: Linux Kernel SFC Driver TCP MSS Option Handling Denial of 6: Linux Kernel SFC Driver TCP MSS Option Handling Denial of Service Vulnerability U-226: Linux Kernel SFC Driver TCP MSS Option Handling Denial of Service Vulnerability August 2, 2012 - 7:00am Addthis PROBLEM: Linux Kernel SFC Driver TCP MSS Option Handling Denial of Service Vulnerability PLATFORM: Linux Kernel 3.2.x ABSTRACT: The Linux kernel is prone to a remote denial-of-service vulnerability. reference LINKS: Secunia Advisory SA50081 Bugtraq ID: 54763 Vulnerability Report: Linux Kernel 3.2.x The Linux Kernel Archives Original Advisory CVE-2012-3412 IMPACT ASSESSMENT: Medium Discussion: A vulnerability has been reported in Linux Kernel, which can be exploited by malicious people to cause a DoS (Denial of Service). The vulnerability is caused due to an error in the Solarflare network

133

Summary of sessions B and F: High intensity linacs and frontend & proton drivers  

SciTech Connect

This paper summarizes the sessions B&F of the 33rd ICFA Advanced Beam Dynamics Workshop on High Intensity & High Brightness Hadron Beams held in Bensheim, Germany. It covers high intensity linacs, front ends and proton driver topics.

Ferdinand, R.; /Saclay; Chou, W.; /Fermilab; Galambos, J.; /Oak Ridge

2005-01-01T23:59:59.000Z

134

U-226: Linux Kernel SFC Driver TCP MSS Option Handling Denial...  

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

August 2, 2012 - 7:00am Addthis PROBLEM: Linux Kernel SFC Driver TCP MSS Option Handling Denial of Service Vulnerability PLATFORM: Linux Kernel 3.2.x ABSTRACT: The Linux...

135

Figure 72. Vehicle miles traveled per licensed driver, 1970-2040 ...  

U.S. Energy Information Administration (EIA)

Sheet3 Sheet2 Sheet1 Figure 72. Vehicle miles traveled per licensed driver, 1970-2040 (thousand miles) History Reference case 1970.00 $8.69 1971.00 $9.01

136

Efficacy, national/international practices and motivational factors of lifelong driver education for the aging population  

E-Print Network (OSTI)

In a society facing a significant increase in its aging population, older driver education/training is emerging as a potential solution to help seniors drive more safely, thus maintaining their mobility and quality of life. ...

Israels, Richard (Richard Steven)

2006-01-01T23:59:59.000Z

137

Analysis of Tidal Straining as Driver for Estuarine Circulation in Well-Mixed Estuaries  

Science Conference Proceedings (OSTI)

Tidal straining, which can mathematically be described as the covariance between eddy viscosity and vertical shear of the along-channel velocity component, has been acknowledged as one of the major drivers for estuarine circulation in channelized ...

Hans Burchard; Henk M. Schuttelaars

2012-02-01T23:59:59.000Z

138

DriverGuard: a fine-grained protection on I/O flows  

Science Conference Proceedings (OSTI)

Most commodity peripheral devices and their drivers are geared to achieve high performance with security functions being opted out. The absence of security measures invites attacks on the I/O data and consequently threats those applications feeding on ...

Yueqiang Cheng; Xuhua Ding; Robert H. Deng

2011-09-01T23:59:59.000Z

139

Emergency vehicle driver training by Texas municipal police departments: a descriptive study  

E-Print Network (OSTI)

Because of the increase in the number of monetary civil judgments arising out of police emergency driving situations, law enforcement agencies are taking a critical look at their emergency driver training programs. At the present time there is no state mandated emergency driver training program in Texas for police officers. To help promote a statewide emergency vehicle driver training program, this study was undertaken to provide answers to the Following questions: 1) Is competency-based emergency vehicle driver training being taught by Texas municipal police departments?; 2) Does the size of a department have an effect on what is taught within these driver training programs?; 3) Has having an emergency vehicle driver training program had an effect on the number of collisions during emergency driving situations?; and 4) What do police administrators consider to be the advantages and disadvantages of having an emergency vehicle driver training program? A review of the literature suggests that police departments nationwide that have no emergency vehicle driver training program or an inadequate program are at risk of becoming entangled in expensive and time consuming litigation. To accomplish the objectives of the study, 123 Texas municipal police departments with 26 or more sworn police officers were mailed questionnaires that were to be completed and returned to the researcher. The questionnaire requested information on the current emergency driver training program of each agency. Results indicated that there was little done to train municipal police officers in emergency driving. The larger the police department, the more likely the department was to have a driver training program, but these programs seldom encompassed a complete competency-based, task related curriculum. The reasons given for the inadequate training by the majority of police departments centered around monetary constraints. It can be concluded that, without proper attention being given to improving emergency driver training for municipal police officers, municipalities face increasing civil litigation. It is recommended that the state mandate adequate training programs, provide regional training facilities, and require statistical analysis of all traffic collisions involving emergency vehicles.

Westmoreland, Robert Lawrence

1994-01-01T23:59:59.000Z

140

Temperature Dependent Electrical Transport Properties of Ni-Cr and Co-Cr Binary Alloys  

Science Conference Proceedings (OSTI)

The temperature dependent electrical transport properties viz. electrical resistivity and thermal conductivity of Ni{sub 10}Cr{sub 90} and Co{sub 20}Cr{sub 80} alloys are computed at various temperatures. The electrical resistivity has been calculated according to Faber-Ziman model combined with Ashcroft-Langreth partial structure factors. In the present work, to include the ion-electron interaction, we have used a well tested local model potential. For exchange-correlation effects, five different forms of local field correction functions due to Hartree (H), Taylor (T), Ichimaru and Utsumi (IU), Farid et al (F) and Sarkar et al (S) are used. The present results due to S function are in good agreement with the experimental data as compared to results obtained using other four functions. The S functions satisfy compressibility sum rule in long wave length limit more accurately as compared to T, IU and F functions, which may be responsible for better agreement of results, obtained using S function. Also, present result confirms the validity of present approach in determining the transport properties of alloys like Ni-Cr and Co-Cr.

Thakore, B. Y.; Khambholja, S. G.; Bhatt, N. K.; Jani, A. R. [Department of Physics, S P University, Vallabh Vidhyanagar, 388 120, Gujarat (India); Suthar, P. H. [Department of Physics, C U Shah Science College, Ahmedabad, 380 014, Gujarat (India); Gajjar, P. N. [Department of Physics, University Schools of Sciences, Gujarat University, Ahmedabad, 380 009, Gujarat (India)

2011-12-12T23:59:59.000Z

Note: This page contains sample records for the topic "driver cr eek" 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

EPRI Conference on 9Cr Materials Fabrication and Joining Technologies  

Science Conference Proceedings (OSTI)

The 9Cr Materials Fabrication and Joining Technologies conference represents an international forum to address concerns associated with utility applications of 9 percent chromium (9Cr) steel materials and components. Although these materials were developed in the United States over 20 years ago, and many domestic installations have used this material, a majority of 9Cr applications have been overseas. This conference was designed to share international experience with these steels and to highlight new is...

2001-10-25T23:59:59.000Z

142

Cyclic Oxidation Behavior of Detonation Gun Sprayed Ni-20Cr ...  

Science Conference Proceedings (OSTI)

Presentation Title, Cyclic Oxidation Behavior of Detonation Gun Sprayed Ni-20Cr Coating on a Boiler Steel at 900°C. Author(s), Gagandeep Kaushal, Harpreet ...

143

Corrosion Behavior of 21%Cr Ferritic Stainless Steel at Atmospheric ...  

Science Conference Proceedings (OSTI)

In this study, 21%Cr SS and TYPE304 were exposed for 5 years at seashore area in Okinawa, and corrosion resistance of these steels was evaluated from ...

144

SF6432-CR (02-01-13) Cost Reimbursement  

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

a Government site to perform work shall have Control : SF 6432-CR Title: Standard Terms & Conditions for Cost Reimbursement Owner: Procurement Policy & Quality Dept Release...

145

CR mammography: Design and implementation of a quality control program  

SciTech Connect

Despite the recent acquisition of significant quantities of computed radiography CR equipment for mammography, Mexican regulations do not specify the performance requirements for digital systems such as those of CR type. The design of a quality control program QCP specific for CR mammography systems was thus considered relevant. International protocols were taken as reference to define tests, procedures and acceptance criteria. The designed QCP was applied in three CR mammography facilities. Important deficiencies in spatial resolution, noise, image receptor homogeneity, artifacts and breast thickness compensation were detected.

Moreno-Ramirez, A.; Brandan, M. E.; Villasenor-Navarro, Y.; Galvan, H. A.; Ruiz-Trejo, C. [Instituto de Fisica, Universidad Nacional Autonoma de Mexico, DF 04510 (Mexico); Departamento de Radiodiagnostico, Instituto Nacional de Cancerologia, DF 14080 (Mexico); Instituto de Fisica, Universidad Nacional Autonoma de Mexico, DF 04510 (Mexico)

2012-10-23T23:59:59.000Z

146

Data Sources: California Department of Fish and Game  

E-Print Network (OSTI)

Dume SMR Point Vicente SMR Naples SMCA Crystal Cove SMCA Dana Point SMCA Point Dume SMCA San Diego Closure 2 Bolsa Chica SMR Batiquitos Lagoon SMR San Elijo Lagoon SMR Swami's SMCA Tijuana River Mouth SMCA River Sisquoc River Santa Cr uzCr eek Santa Ynez Ri ver Mono Cree k San Antonio Creek Santa Ynez R iver

Hampton, Randy

147

Pulsed power drivers for ICF and high energy density physics  

SciTech Connect

Nanosecond Pulsed Power Science and Technology has its origins in the 1960s and over the past decade has matured into a flexible and robust discipline capable of addressing key physics issues of importance to ICF and high Energy Density Physics. The major leverage provided by pulsed power is its ability to generate and deliver high energy and high power at low cost and high efficiency. A low-cost, high-efficiency driver is important because of the very large capital investment required for multi-megajoule ignition-class systems. High efficiency is of additional importance for a commercially viable inertial fusion energy option. Nanosecond pulsed power has been aggressively and successfully developed at Sandia over the past twenty years. This effort has led to the development of unique multi-purpose facilities supported by highly capable diagnostic, calculational and analytic capabilities. The Sandia Particle-beam Fusion Program has evolved as part of an integrated national ICF Program. It applies the low-cost, high-efficiency leverage provided by nanosecond pulsed power systems to the longer-term goals of the national program, i.e., the Laboratory Microfusion Facility and Inertial Fusion Energy. A separate effort has led to the application of nanosecond pulsed power to the generation of intense, high-energy laboratory x-ray sources for application to x-ray laser and radiation effects science research. Saturn is the most powerful of these sources to date. It generates {approximately}500 kilojoules of x-rays from a magnetically driven implosion (Z-pinch). This paper describes results of x-ray physics experiments performed on Saturn, plans for a new Z-pinch drive capability for PBFA-II, and a design concept for the proposed {approximately}15 MJ Jupiter facility. The opportunities for ICF-relevant research using these facilities will also be discussed.

Ramirez, J.J.; Matzen, M.K.; McDaniel, D.H.

1995-12-31T23:59:59.000Z

148

Chemical and electrochemical behavior of the Cr(III)/Cr(II) half cell in the NASA Redox Energy Storage System  

DOE Green Energy (OSTI)

The Cr(III) complexes in the NASA Redox Energy Storage System have been isolated and identified as Cr(H/sub 2/O)/sub 6//sup +3/ and Cr(H/sub 2/O)/sub 5/Cl/sup +2/ by ion-exchange chromatography and visible spectrophotometry. The cell reactions during charge-discharge cycles have been followed by means of visible spectrophotometry. The spectral bands were resolved into component peaks and concentrations calculated using Beer's Law. During the charge mode Cr(H/sub 2/O)/sub 5/Cl/sup +2/ is reduced to Cr(H/sub 2/O)/sub 5/Cl/sup +/ and during the discharge mode Cr(H/sub 2/O)/sub 5/Cl/sup +/ is oxidized back to Cr(H/sub 2/O)/sub 5/Cl/sup +2/. Both electrode reactions occur via a chloride-bridge inner-sphere reaction pathway. Hysteresis effects can be explained by the slow attainment of equilibrium between Cr(H/sub 2/O)/sub 6//sup +3/ and Cr(H/sub 2/O)/sub 5/Cl/sup +2/.

Johnson, D.A.; Reid, M.A.

1982-01-01T23:59:59.000Z

149

CR-L-01-06.PDF  

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

8, 2001 8, 2001 MEMORANDUM FOR THE SECRETARY FROM: Gregory H. Friedman (Signed) Inspector General SUBJECT: INFORMATION: Federal Managers' Financial Integrity Act Audit Report Audit Report No.: CR-L-01-06 We reviewed the Department of Energy's (Department) progress in implementing the Federal Managers' Financial Integrity Act (FMFIA) of 1982. The review was made to assist you in determining whether the evaluations of the systems of management, accounting, and administrative controls were carried out in a reasonable and prudent manner by the Department for Fiscal Year 2000. The Department's evaluation of its control systems was examined for compliance with requirements of the FMFIA, the General Accounting Office's "Standards for Internal Control in the Federal Government," Office of Management and Budget Circulars

150

PARS II Change Request (CR) Form  

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

Title: Phone #: Office/Symbol: Email: CHANGE TYPE: Defect: New Requirement: PRIORITY: PARS II Change Request Form (APR 2011) PARS II Change Request (CR) Form 1 = Prevents the accomplishment of an essential PARS-II capability 3 = Adversely affects the accomplishment of an essential PARS-II capability, but a work-around solution is known 4 = Results in User / Operator inconvenience or annoyance, but does not affect an essential PARS-II capability 5 = Any other effect 1) Detailed description of problem/need. (If possible, provide project #(s) you are working with). PROBLEM/CHANGE DESCRIPTION: 2) Where in system defect is seen or where new functionality is required (i.e., which screen, which report). Screenshots (as separate attachments) are helpful.

151

Large Synoptic Survey Telescope: From Science Drivers to Reference Design  

SciTech Connect

In the history of astronomy, major advances in our understanding of the Universe have come from dramatic improvements in our ability to accurately measure astronomical quantities. Aided by rapid progress in information technology, current sky surveys are changing the way we view and study the Universe. Next-generation surveys will maintain this revolutionary progress. We focus here on the most ambitious survey currently planned in the visible band, the Large Synoptic Survey Telescope (LSST). LSST will have unique survey capability in the faint time domain. The LSST design is driven by four main science themes: constraining dark energy and dark matter, taking an inventory of the Solar System, exploring the transient optical sky, and mapping the Milky Way. It will be a large, wide-field ground-based system designed to obtain multiple images covering the sky that is visible from Cerro Pachon in Northern Chile. The current baseline design, with an 8.4 m (6.5 m effective) primary mirror, a 9.6 deg{sup 2} field of view, and a 3,200 Megapixel camera, will allow about 10,000 square degrees of sky to be covered using pairs of 15-second exposures in two photometric bands every three nights on average. The system is designed to yield high image quality, as well as superb astrometric and photometric accuracy. The survey area will include 30,000 deg{sup 2} with {delta} < +34.5{sup o}, and will be imaged multiple times in six bands, ugrizy, covering the wavelength range 320-1050 nm. About 90% of the observing time will be devoted to a deep-wide-fast survey mode which will observe a 20,000 deg{sup 2} region about 1000 times in the six bands during the anticipated 10 years of operation. These data will result in databases including 10 billion galaxies and a similar number of stars, and will serve the majority of science programs. The remaining 10% of the observing time will be allocated to special programs such as Very Deep and Very Fast time domain surveys. We describe how the LSST science drivers led to these choices of system parameters.

Ivezic, Z.; Axelrod, T.; Brandt, W.N.; Burke, D.L.; Claver, C.F.; Connolly, A.; Cook, K.H.; Gee, P.; Gilmore, D.K.; Jacoby, S.H.; Jones, R.L.; Kahn, S.M.; Kantor, J.P.; Krabbendam, V.; Lupton, R.H.; Monet, D.G.; Pinto, P.A.; Saha, A.; Schalk, T.L.; Schneider, D.P.; Strauss, Michael A.; /Washington U., Seattle, Astron. Dept. /LSST Corp. /Penn State U., Astron. Astrophys. /KIPAC, Menlo Park /NOAO, Tucson /LLNL, Livermore /UC, Davis /Princeton U., Astrophys. Sci. Dept. /Naval Observ., Flagstaff /Arizona U., Astron. Dept. - Steward Observ. /UC, Santa Cruz /Harvard U. /Johns Hopkins U. /Illinois U., Urbana

2011-10-14T23:59:59.000Z

152

High Temperature Dynamic Hohlraums on the Pulsed Power Driver Z  

SciTech Connect

In the concept of the dynamic hohlraum an imploding z-pinch is optically thick to its own radiation. Radiation may be trapped inside the pinch to give a radiation temperature inside the pinch greater than that outside the pinch. The radiation is typically produced by colliding an outer Z-pinch liner onto an inner liner. The collision generates a strongly radiating shock, and the radiation is trapped by the outer liner. As the implosion continues after the collision the radiation temperature may continue to increase due to ongoing PdV (pressure times change in volume) work done by the implosion. In principal the radiation temperature may increase to the point at which the outer liner burns through, becomes optically thin, and no longer traps the radiation. One application of the dynamic hohlraum is to drive an ICF (inertial confinement fusion) pellet with the trapped radiation field. Members of the dynamic hohlraum team at Sandia National Labs have used the pulsed power driver Z (20 LMA, 100 ns) to create a dynamic hohlraum with temperature linearly ramping from 100 to 180 eV over 5 ns. On this shot zp214 a nested tungsten wire array of 4 and 2 cm diameters with masses of 2 and 1 mg imploded onto a 2.5 mg plastic annulus at 5 mm diameter. The current return can on this shot was slotted. It is likely the radiation temperature may be increased to over 200 CV by stabilizing the pinch with a solid current return can. A current return can with 9 slots imprints 9 filaments onto the imploding pinch. This degrades the optical trapping and the quality of the liner collision. A 1.6 mm diameter capsule situated inside this dynamic hohlraum of zp214 would see 15 kJ of radiation impinging on its surface before the pinch itself collapses to a 1.6 mm diameter. Dynamic hohlraum shots including pellets are scheduled to take place on Z in September of 1998.

Armijo, J.; Chandler, G.A.; Cooper, G.; Derzon, M.S.; Fehl, D.; Gilliland, T.; Hawn, R.; Hebron, D.; Hurst, M.; Jobe, D.; Lash, J.; Lazier, S.; Leeper, R.; McGurn, J.; McKenney, J.; Mock, R.; Nash, T.J.; Nielsen, D.; Ruiz, C.; Ryan, P.; Seaman, J.F.; Torres, J.

1999-01-04T23:59:59.000Z

153

The Geant4 Visualisation System - a multi-driver graphics system  

E-Print Network (OSTI)

From the beginning the Geant4 Visualisation System was designed to support several simultaneous graphics systems written to common abstract interfaces. Today it has matured into a powerful diagnostic and presentational tool. It comes with a library of models that may be added to the current scene and which include the representation of the Geant4 geometry hierarchy, simulated trajectories and user-written hits and digitisations. The workhorse is the OpenGL suite of drivers for X, Xm, Qt and Win32. There is an Open Inventor driver. Scenes can be exported in special graphics formats for offline viewing in the DAWN, VRML, HepRApp and gMocren browsers. PostScript can be generated through OpenGL, Open Inventor, DAWN and HepRApp. Geant4's own tracking algorithms are used by the Ray Tracer. Not all drivers support all features but all drivers bring added functionality of some sort. This paper describes the interfaces and details the individual drivers.

John Allison; Laurent Garnier; Akinori Kimura; Joseph Perl

2012-12-31T23:59:59.000Z

154

BEAM DYNAMICS STUDIES OF A HIGH-REPETITION RATE \\\\ LINAC-DRIVER FOR A 4TH GENERATION LIGHT SOURCE  

E-Print Network (OSTI)

DRIVER FOR A 4TH GENERATION LIGHT SOURCE ? M. Venturini † ,of designing a 4th generation light source in the 0.27 ? 1.2

Ventturini, M.

2013-01-01T23:59:59.000Z

155

Grid Parity for Residential Photovoltaics in the United States: Key Drivers and Sensitivities; Preprint  

DOE Green Energy (OSTI)

In this report, we analyze PV break-even costs for U.S. residential customers. We evaluate some key drivers of grid parity both regionally and over time. We also examine the impact of moving from flat to time-of-use (TOU) rates, and we evaluate individual components of the break-even cost, including effect of rate structure and various incentives. Finally, we examine how PV markets might evolve on a regional basis considering the sensitivity of the break-even cost to four major drivers: technical performance, financing parameters, electricity prices and rates, and policies. We find that electricity price rather than technical parameters are in general the key drivers of the break-even cost of PV. Additionally, this analysis provides insight about the potential viability of PV markets.

Ong, S.; Denholm, P.; Clark, N.

2012-08-01T23:59:59.000Z

156

Experimental comparison of the active well coincidence counter with the random driver  

SciTech Connect

A direct comparison has been made between the IAEA Active Well Coincidence Counter (AWCC) and the CMB-8 Random Driver. The comparison included an experimental evaluation of precision, counting rate, accuracy, penetrability, stability, and the effect of sample inhomogeneity. Samples used in the evaluation included highly enriched U/sub 3/O/sub 8/, U/sub 3/O/sub 8/ mixed withe qgraphite, highly enriched uranium metal discs, and depleted uranium metal. These materials are typical of the samples of interest to the IAEA inspectors. It was concluded that the two instruments had very similar performance characteristics with the Random Driver giving better penetrability and the AWCC giving better stability.

Menlove, H.O.; Ensslin, N.; Sampson, T.E.

1979-06-01T23:59:59.000Z

157

Abstract--There are two types of drivers in production machine systems: constant velocity (CV) motor and servo-motor.  

E-Print Network (OSTI)

) motor and servo-motor. If a system contains two drivers or more, among which some are of the CV motor while the other are the servo-motor, the system has the so-called hybrid driver architecture is stable. A simulation is performed to show verify the proposed controller. The CV motor has the velocity

Zhang, WJ "Chris"

158

(Mo,Cr) in HASTELLOY C-22HS Alloy, a  

Science Conference Proceedings (OSTI)

debate (with question marks in the phase diagrams) such as ?CrMo4Ni5, ? ... diagram at 500, 620 and 700ºC show the existence of P phase and. OP6 phase[5

159

9 Cr-- 1 Mo steel material for high temperature application  

DOE Patents (OSTI)

One or more embodiments relates to a high-temperature, titanium alloyed, 9 Cr-1 Mo steel exhibiting improved creep strength and oxidation resistance at service temperatures up to 650.degree. C. The 9 Cr-1 Mo steel has a tempered martensite microstructure and is comprised of both large (0.5-3 .mu.m) primary titanium carbides and small (5-50 nm) secondary titanium carbides in a ratio of. from about 1:1.5 to about 1.5:1. The 9 Cr-1 Mo steel may be fabricated using exemplary austenizing, rapid cooling, and tempering steps without subsequent hot working requirements. The 9 Cr-1 Mo steel exhibits improvements in total mass gain, yield strength, and time-to-rupture over ASTM P91 and ASTM P92 at the temperature and time conditions examined.

Jablonski, Paul D; Alman, David; Dogan, Omer; Holcomb, Gordon; Cowen, Christopher

2012-11-27T23:59:59.000Z

160

SF 6432-CR Standard Terms and Conditions for Cost Reimbursement...  

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

CR (04-95) Sections II & III SECTION II STANDARD TERMS AND CONDITIONS FOR ALL COST REIMBURSEMENT CONTRACTS INDEX OF CLAUSES THE FOLLOWING CLAUSES APPLY TO THIS CONTRACT AS...

Note: This page contains sample records for the topic "driver cr eek" 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

Web-Based Forest Sector Communities as Drivers for Economic Development  

E-Print Network (OSTI)

1 Web-Based Forest Sector Communities as Drivers for Economic Development Richard Vlosky MeetingForest Products Society Annual Meeting--June, 2005June, 2005 Outline · Overview of webCommon ties Social interactionSocial interaction What are Web-based Communities? Social network that uses

162

Holifield!Radioactive!Ion!Beam!Facility! Cyclotron!Driver!White!Paper!  

E-Print Network (OSTI)

Holifield!Radioactive!Ion!Beam!Facility! Cyclotron!Driver!White!Paper! ! ! ! ! prepared and design work has progressed. One of the original purposes of the White Paper was a comparison-writing the document now, most of these references would not be relevant. #12;2 1.0 Introduction! ! This!white!paper

163

Inrush related problems caused by lamps with electronic drivers and their mitigation  

Science Conference Proceedings (OSTI)

New types of appliances sometimes bring unexpected power quality problems. On several locations it was reported that energy-saving lamps cause random false tripping of circuit breakers. In all of these cases these lamps had electronic drivers. An investigation ... Keywords: energy-saving lamp, false tripping, inrush, mitigation, power quality

Vladimir ?uk; Joseph F. G. Cobben; Wil L. Kling

2011-07-01T23:59:59.000Z

164

Advanced beam-dynamics simulation tools for the RIA driver linac,Part I: Low energy beam transport and radiofrequency quadrupole  

Science Conference Proceedings (OSTI)

Advanced Beam-Dynamics Simulation Tools for the RIA Driver Linac; Low Energy Beam Transport and Radiofrequency Quadrupole.

Wangler, Thomas P.; Crandall, Kenneth R.; Garnett, Robert W.; Gorelov, Dmitry; Ostroumov, Petr; Qiang, Ji; Ryne, Robert; York, Richard

2003-08-26T23:59:59.000Z

165

Effect of the magnetic phase transition on the charge transport in layered semiconductor ferromagnets TlCrS{sub 2} and TlCrSe{sub 2}  

Science Conference Proceedings (OSTI)

TlCrS{sub 2} and TlCrSe{sub 2} crystals were synthesized by solid-state reaction. X-ray diffraction analysis showed that TlCrS{sub 2} and TlCrSe{sub 2} compounds crystallize in the hexagonal crystal system with lattice parameters a = 3.538 A, c = 21.962 A, c/a {approx} 6.207, z = 3; a = 3.6999 A, c = 22.6901 A, c/a {approx} 6.133, z = 3; and X-ray densities {rho}{sub x} = 6.705 and 6.209 g/cm{sup 3}, respectively. Magnetic and electric studies in a temperature range of 77-400 K showed that TlCrS{sub 2} and TlCrSe{sub 2} are semiconductor ferromagnets. Rather large deviations of the experimental effective magnetic moment of TlCrS{sub 2} (3.26 {mu}{sub B}) and TlCrSe{sub 2} (3.05 {mu}{sub B}) from the theoretical one (3.85 {mu}{sub B}) are attributed to two-dimensional magnetic ordering in the paramagnetic region of strongly layered ferromagnets TlCrS{sub 2} and TlCrSe{sub 2}. The effect of the magnetic phase's transition on the charge transport in TlCrS{sub 2} and TlCrSe{sub 2} is detected.

Veliyev, R. G.; Sadikhov, R. Z.; Kerimova, E. M., E-mail: ekerimova@physics.ab.az; Asadov, Yu. G.; Jabbarov, A. I. [Azerbaijan National Academy of Sciences, Institute of Physics (Azerbaijan)

2009-09-15T23:59:59.000Z

166

Pontotoc Co. Greene Co. Hale Co. OAK GROVE C OAL D EGAS CEDAR COVE COAL DEGAS  

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

COAL DEGAS COAL DEGAS BLU E CREEK COAL DEGAS BR OOKWOOD C OAL D EGAS ST AR ROBIN SONS BEND COAL DEGAS BLU FF COR INNE MOU NDVILLE COAL DEGAS BLU EGU T CR EEK WH ITE OAK CREEK COAL DEGAS BEAVERT ON BLU FF FAYETTE W SN EAD S CREEK SPLU NGE PAR HAM N MUSGR OVE CR EEK MCCRAC KEN MOU NTAIN DAVIS C HAPEL BAC ON BLOOMING GROVE MT Z ION FAIRVIEW JASPER BLOWHORN CREEK MAPLE BRAN CH KEN NEDY COAL F IRE CR EEK MCGEE LAKE SILOAM MILLPOR T FERNBANK DAVIS C HAPEL NE DETROIT E BEANS F ERRY LEXIN GT ON PET ERSON COAL DEGAS CALEDONIA ABERD EEN HOL T COAL DEGAS MULDON ELD RIDGE MCKINLEY CREEK TREBLOC HEARTLIN E SH ANNON TROY_MS_D BOXES CREEK WISE GAP NOR THSID E TREMONT VAN VLEET HOL LY BET HEL CHU RCH ABERD EEN S ST RONG BAN KST ON MOLLOY WR EN COR INT H WELLS THORN REID REID HOU STON ST AR DEERLICK CR EEK C OAL DEGAS OAK GROVE C OAL D EGAS BIG SANDY C REEK COAL D EGAS MABEN LITT LE SAND Y CREEK COAL DEGAS

167

BIG SANDY IDA ONEID A WILL IAM SBU RG BU RNIN G SPRIN GS WIN  

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

BIG SANDY IDA ONEID A WILL IAM SBU RG BU RNIN G SPRIN GS WIN ON A ALBANY CAT RON CREEK DALEY BU LL CREEK LEE C HAPEL AR Y ROT HWELL MEAD OW CR EEK HOL LY CREEK CON CORD TAU LBEE KH...

168

Itinerant Antiferromagnetism in BaCr2As2  

SciTech Connect

We report single-crystal synthesis, specific-heat and resistivity measurements and electronic structure calculations for BaCr{sub 2}As{sub 2}. This material is a metal with itinerant antiferromagnetism, similar to the parent phases of Fe-based high-temperature superconductors, but differs in magnetic order. Comparison of bare band-structure density of states and the low-temperature specific heat implies a mass renormalization of {approx}2. BaCr{sub 2}As{sub 2} shows stronger transition-metal-pnictogen covalency than the Fe compounds, and in this respect is more similar to BaMn{sub 2}As{sub 2}. This provides an explanation for the observation that Ni and Co doping is effective in the Fe-based superconductors, but Cr or Mn doping is not.

Singh, David J [ORNL; Safa-Sefat, Athena [ORNL; Mandrus, David [ORNL

2009-03-01T23:59:59.000Z

169

Experimental comparison of the active well coincidence counter with the random driver  

SciTech Connect

A direct comparison has been made between the IAEA Active Well Coincidence Counter (AWCC) and the LASL Random Driver at CMB-8. The comparison included an experimental evaluation of precision, counting rate, accuracy, penetrability, stability, and the effect of sample inhomogeneity. Samples used in the evaluation included highly enriched U/sub 3/O/sub 8/, U/sub 3/O/sub 8/ mixed with graphite, highly enriched uranium metal discs, and depleted uranium metal. These materials are typical of the samples of interest to the IAEA inspectors. It is concluded that the two instruments had very similar performance characteristics with the Random Driver giving better penetrability and the AWCC giving better stability.

Menlove, H.O.; Ensslin, N.; Sampson, T.E.

1979-01-01T23:59:59.000Z

170

Break-Even Cost for Residential Photovoltaics in the United States: Key Drivers and Sensitivities  

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

09 09 December 2009 Break-Even Cost for Residential Photovoltaics in the United States: Key Drivers and Sensitivities Paul Denholm, Robert M. Margolis, Sean Ong, and Billy Roberts National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Operated by the Alliance for Sustainable Energy, LLC Contract No. DE-AC36-08-GO28308 Technical Report NREL/TP-6A2-46909 December 2009 Break-Even Cost for Residential Photovoltaics in the United States: Key Drivers and Sensitivities Paul Denholm, Robert M. Margolis, Sean Ong, and Billy Roberts Prepared under Task No. PVD9.1210 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

171

OPERATION AND COMMISSIONING OF THE JEFFERSON LAB UV FEL USING AN SRF DRIVER ERL  

Science Conference Proceedings (OSTI)

We describe the operation and commissioning of the Jefferson Lab UV FEL using a CW SRF ERL driver. Based on the same 135 MeV linear accelerator as the Jefferson Lab 10 kW IR Upgrade FEL, the UV driver ERL uses a bypass geometry to provide transverse phase space control, bunch length compression, and nonlinear aberration compensation necessitating a unique set of commissioning and operational procedures. Additionally, a novel technique to initiate lasing is described. To meet these constraints and accommodate a challenging installation schedule, we adopted a staged commissioning plan with alternating installation and operation periods. This report addresses these issues and presents operational results from on-going beam operations.

R. Legg; S. Benson; G. Biallas; K. Blackburn; J. Boyce; D. Bullard; J. Coleman; C. Dickover; D. Douglas; F. Ellingsworth; P. Evtushenko; F. Hannon; C. Hernandez-Garcia; C. Gould; J. Gubeli; D. Hardy; K. Jordan; M. Klopf; J. Kortze; M. Marchlik; W. Moore; G. Neil; T. Powers; D. Sexton; Michelle D. Shinn; C. Tennant; R. Walker; G. Wilson

2011-03-01T23:59:59.000Z

172

Accounting for the Variation of Driver Aggression in the Simulation of Conventional and Advanced Vehicles: Preprint  

DOE Green Energy (OSTI)

Hybrid electric vehicles, plug-in hybrid electric vehicles, and battery electric vehicles offer the potential to reduce both oil imports and greenhouse gases, as well as to offer a financial benefit to the driver. However, assessing these potential benefits is complicated by several factors, including the driving habits of the operator. We focus on driver aggression, i.e., the level of acceleration and velocity characteristic of travel, to (1) assess its variation within large, real-world drive datasets, (2) quantify its effect on both vehicle efficiency and economics for multiple vehicle types, (3) compare these results to those of standard drive cycles commonly used in the industry, and (4) create a representative drive cycle for future analyses where standard drive cycles are lacking.

Neubauer, J.; Wood, E.

2013-03-01T23:59:59.000Z

173

Accounting for the Variation of Driver Aggression in the Simulation of Conventional and Advanced Vehicles  

DOE Green Energy (OSTI)

Hybrid electric vehicles, plug-in hybrid electric vehicles, and battery electric vehicles offer the potential to reduce both oil imports and greenhouse gases, as well as to offer a financial benefit to the driver. However, assessing these potential benefits is complicated by several factors, including the driving habits of the operator. We focus on driver aggression, i.e., the level of acceleration and velocity characteristic of travel, to (1) assess its variation within large, real-world drive datasets, (2) quantify its effect on both vehicle efficiency and economics for multiple vehicle types, (3) compare these results to those of standard drive cycles commonly used in the industry, and (4) create a representative drive cycle for future analyses where standard drive cycles are lacking.

Neubauer, J.; Wood, E.

2013-01-01T23:59:59.000Z

174

Session 4: "Short-Term Energy Prices - What Drivers Matter Most?"  

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

4: "Short-Term Energy Prices - What Drivers Matter Most?" 4: "Short-Term Energy Prices - What Drivers Matter Most?" Speakers: Howard K. Gruenspecht, EIA David M. Arseneau, Federal Reserve Board Guy F. Caruso, Center for Strategic and International Studies Christopher Ellsworth, Federal Energy Regulatory Commission Edward L. Morse, Credit Suisse Securities [Note: Recorders did not pick up introduction of panel (see biographies for details on the panelists) or introduction of session.] Howard: And this presentation could not be more timely, given current developments in oil and natural gas markets and the start of the traditional summer driving season. In discussions of rapidly rising oil prices leading to a peak of $147 per barrel in the summer of 2008, the factors that were traditionally the focus of EIA's

175

Nitrate Enhanced Microbial Cr(VI) Reduction-Final Report  

Science Conference Proceedings (OSTI)

A major challenge for the bioremediation of radionuclides (i.e., uranium, technetium) and metals (i.e., Cr(VI), Hg) is the co-occurrence of nitrate as it can inhibit metal transformation. Denitrification (nitrate reduction to dinitrogen gas) is considered the most important ecological process. For many metal and metalloid reducing bacteria, however, ammonia is the end product through respiratory nitrate reduction (RNRA). The focus of this work was to determine how RNRA impacts Cr(VI) transformation. The goal was to elucidate the specific mechanism(s) that limits Cr(VI) reduction in the presence of nitrate and to use this information to develop strategies that enhance Cr(VI) reduction (and thus detoxification). Our central hypothesis is that nitrate impacts the biotransformation of metals and metalloids in three ways 1) as a competitive alternative electron acceptor (inhibiting transformation), 2) as a co-metabolite (i.e., concomitant reduction, stimulating transformation), and 3) as an inducer of specific proteins and pathways involved in oxidation/reduction reactions (stimulating transformation). We have identified three model organisms, Geobacter metallireducens (mechanism 1), Sulfurospirillum barnesii, (mechasism 2), and Desulfovibrio desulfuricans (mechanisms 3). Our specific aims were to 1) investigate the role of Cr(VI) concentration on the kinetics of both growth and reduction of nitrate, nitrite, and Cr(VI) in these three organisms; 2) develop a profile of bacterial enzymes involved in nitrate transformation (e.g., oxidoreductases) using a proteomic approach; 3) investigate the function of periplasmic nitrite reductase (Nrf) as a chromate reductase; and 4) develop a strategy to maximize microbial chromium reduction in the presence of nitrate. We found that growth on nitrate by G. metallireducens was inhibited by Cr(VI). Over 240 proteins were identified by LC/MS-MS. Redox active proteins, outer membrane heavy metal efflux proteins, and chemotaxis sensory proteins (Gmet_2478 and Gmet_1641) were up-regulated with exposure to Cr(VI). A nine-heme cytochrome C was purified that could reduce nitrite and could be oxidized by Cr(VI). For D. desulfuricans, we found that confirmed that Cr(VI) induced a prolonged lag period when Cr(VI) was reduced. Over three hundred proteins were unequivocally identified by LC/MS-MS and a significant number of down-regulated proteins for which the levels were changed >2 fold compared to control. Sulfite reductase levels were similar, however, nitrate and nitrite reductase were down-regulated. The supernatant of spent cultures was found to contain a filterable, heat stable compound that rapidly reduced Cr(VI). In addition, desulfoviridin was purified from nitrate grown cells and shown to have nitrite reductase activity that was inhibited by Cr(VI). For S. barnesii, periplasmic nitrate reductase (Nap), nitrite reductase (Nrf), and the metalloid reductase (Rar) were purified and characterized. The supernatant of spent cultures was also found to contain a filterable, heat stable compound that rapidly reduced Cr(VI) but that Rar also reduced Cr(VI). Our results from specific aims 1 through 3 indicate that for G. metallireducens, Cr(VI) inhibits nitrate respiration as it oxidizes cytochromes involved in nitrate respiration. Iron reduction is apparently not affected and the inhibitory affects of Cr(VI) may be attenuated by the addition of sufficient Fe(III) to generate Fe(II) that abiotically reduces the chromium. For S. barnesii, although the enzyme assays indicate that the components of the respiratory pathway for nitrate (e.g. Nap and Nrf) are inhibited by chromate, the organism has a mechanism to prevent this from actually occurring. Our current hypothesis is that the non-specific metalloid reductase (Rar) is providing resistance by reducing the Cr(VI). The strategy here would be to enhance its growth and metabolism in the natural setting. Lactate is a suitable electron donor for S. barnesii but other donors are possible. Although the version of the Phylochip used for monitoring the microb

John F. Stolz

2011-06-15T23:59:59.000Z

176

Finite element modeling of Cr(VI) reduction by Shewanella oneidensis MR-1 employing the dual-enzyme kinetic model  

Science Conference Proceedings (OSTI)

Chromium (VI) (Cr(VI)) contamination of soil and groundwater is considered a major environmental concern. Bioreduction of Cr(VI) to chromium (III) (Cr(III)) can be considered an effective technology in remediating Cr(VI) contaminated sites. Among the ... Keywords: Bioreduction, Cr(VI), Dual-enzyme, Modeling

Md. Akram Hossain; Mahbub Alam; David Yonge; Prashanta Dutta

2005-12-01T23:59:59.000Z

177

Design of Accumulator and Compressor Rings for the Project-X Based Proton Driver  

Science Conference Proceedings (OSTI)

A Muon Collider (MC) and a Neutrino Factory (NF) - which may be considered as a step towards a MC - both require a high-power ({approx}4 MW) proton driver providing short (compressor ring can be nearly isochronous in order to limit the required RF voltage and reduce the dispersion contribution to the beam size. In the present report we consider ring lattice designs which achieve these goals.

Alexahin, Y.; Neuffer, D.; /Fermilab

2012-05-01T23:59:59.000Z

178

AGS performance and upgrades; A possible proton driver for a muon collider  

SciTech Connect

After the successful completion of the AGS Booster and several upgrades of the AGS, a new intensity record of 6.3 x 10{sup 13} protons per pulse accelerated to 24GeV was achieved. Further intensity upgrades are being discussed that could increase the average delivered beam intensity by up to a factor of six. The total beam power then reaches almost 1 MW and the AGS can then be considered as a proton driver for a muon collider.

Roser, T.

1995-12-31T23:59:59.000Z

179

Regional Supply Outlook for Market Driver Coals: A New Set of Fundamentals?  

Science Conference Proceedings (OSTI)

Coal prices have peaked twice since 2000 and have yet to return to pre-2000 levels. In the wake of this volatility, this report examines how coal supply fundamentals are changing for key "market-driver" coals and how these changes impact future markets for coal. Many believe the power industry will be able to use a broader range of cheaper, more abundant coals once tighter environmental requirements force additional technology controls around the country. Contrary to this belief, this report provides evi...

2003-11-20T23:59:59.000Z

180

Managing the Drivers of Air Flow and Water Vapor Transport in Existing Single Family Homes (Revised)  

SciTech Connect

This document focuses on managing the driving forces which move air and moisture across the building envelope. While other previously published Measure Guidelines focus on elimination of air pathways, the ultimate goal of this Measure Guideline is to manage drivers which cause air flow and water vapor transport across the building envelope (and also within the home), control air infiltration, keep relative humidity (RH) within acceptable limits, avoid combustion safety problems, improve occupant comfort, and reduce house energy use.

Cummings, J.; Withers, C.; Martin, E.; Moyer, N.

2012-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "driver cr eek" 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

Analytic Framework for Evaluation of State Energy Efficiency and Renewable Energy Policies with Reference to Stakeholder Drivers  

SciTech Connect

This report presents the framework that was developed to analyze energy efficiency and renewable energy policies on the state level based on how well they meet the stakeholder drivers.

Brown, E.; Mosey, G.

2008-07-01T23:59:59.000Z

182

Survey of Laser Markets Relevant to Inertial Fusion Energy Drivers, information for National Research Council  

Science Conference Proceedings (OSTI)

Development of a new technology for commercial application can be significantly accelerated by leveraging related technologies used in other markets. Synergies across multiple application domains attract research and development (R and D) talent - widening the innovation pipeline - and increases the market demand in common components and subsystems to provide performance improvements and cost reductions. For these reasons, driver development plans for inertial fusion energy (IFE) should consider the non-fusion technology base that can be lveraged for application to IFE. At this time, two laser driver technologies are being proposed for IFE: solid-state lasers (SSLs) and KrF gas (excimer) lasers. This document provides a brief survey of organizations actively engaged in these technologies. This is intended to facilitate comparison of the opportunities for leveraging the larger technical community for IFE laser driver development. They have included tables that summarize the commercial organizations selling solid-state and KrF lasers, and a brief summary of organizations actively engaged in R and D on these technologies.

Bayramian, A J; Deri, R J; Erlandson, A C

2011-02-24T23:59:59.000Z

183

Modeling Altruistic and Aggressive Driver Behavior in a No-Notice Evacuation  

Science Conference Proceedings (OSTI)

This study examines the impact of altruistic and aggressive driver behavior on the effectiveness of an evacuation for a section of downtown Atlanta. The study area includes 37 signalized intersections, seven ramps, and 48 parking lots that vary by size, type (lot versus garage), peak volume, and number of ingress and egress points. A detailed microscopic model of the study area was created in VISSIM. Different scenarios examined the impacts of driver behavior on parking lot discharge rates and the loading rates from side streets on primary evacuation routes. A new methodology was created to accurately represent parking lot discharge rates. This study is also unique in that it assumes a "worst case scenario" that occurs with no advance notice during the morning peak period, when vehicles must transition from inbound to outbound routes. Simulation results indicate that while overall network clearance times are similar across scenarios, the distribution of delay on individual routes and across parking lots differ markedly. More equitable solutions (defined as the allocation of delay from parking lots and side streets to main evacuation routes) were observed with altruistic driver behavior.

Brandstetter, Tim [Kimley-Horn and Associates; Garrow, Dr. Laurie [Georgia Institute of Technology; Hunter, Dr. Michael [Georgia Institute of Technology; Southworth, Frank [ORNL

2007-01-01T23:59:59.000Z

184

Break-Even Cost for Residential Photovoltaics in the United States: Key Drivers and Sensitivities  

DOE Green Energy (OSTI)

Grid parity--or break-even cost--for photovoltaic (PV) technology is defined as the point where the cost of PV-generated electricity equals the cost of electricity purchased from the grid. Break-even cost is expressed in $/W of an installed system. Achieving break-even cost is a function of many variables. Consequently, break-even costs vary by location and time for a country, such as the United States, with a diverse set of resources, electricity prices, and other variables. In this report, we analyze PV break-even costs for U.S. residential customers. We evaluate some key drivers of grid parity both regionally and over time. We also examine the impact of moving from flat to time-of-use (TOU) rates, and we evaluate individual components of the break-even cost, including effect of rate structure and various incentives. Finally, we examine how PV markets might evolve on a regional basis considering the sensitivity of the break-even cost to four major drivers: technical performance, financing parameters, electricity prices and rates, and policies. We find that local incentives rather than ?technical? parameters are in general the key drivers of the break-even cost of PV. Additionally, this analysis provides insight about the potential viability of PV markets.

Denholm, P.; Margolis, R. M.; Ong, S.; Roberts, B.

2009-12-01T23:59:59.000Z

185

Accounting for the Variation of Driver Aggression in the Simulation of Conventional and Advanced Vehicles (Presentation)  

SciTech Connect

This presentation discusses a method of accounting for realistic levels of driver aggression to higher-level vehicle studies, including the impact of variation in real-world driving characteristics (acceleration and speed) on vehicle energy consumption and different powertrains (e.g., conventionally powered vehicles versus electrified drive vehicles [xEVs]). Aggression variation between drivers can increase fuel consumption by more than 50% or decrease it by more than 20% from average. The normalized fuel consumption deviation from average as a function of population percentile was found to be largely insensitive to powertrain. However, the traits of ideal driving behavior are a function of powertrain. In conventional vehicles, kinetic losses dominate rolling resistance and aerodynamic losses. In xEVs with regenerative braking, rolling resistance and aerodynamic losses dominate. The relation of fuel consumption predicted from real-world drive data to that predicted by the industry-standard HWFET, UDDS, LA92, and US06 drive cycles was not consistent across powertrains, and varied broadly from the mean, median, and mode of real-world driving. A drive cycle synthesized by NREL's DRIVE tool accurately and consistently reproduces average real-world for multiple powertrains within 1%, and can be used to calculate the fuel consumption effects of varying levels of driver aggression.

Neubauer, J.; Wood, E.

2013-05-01T23:59:59.000Z

186

Accounting for the Variation of Driver Aggression in the Simulation of Conventional and Advanced Vehicles (Presentation)  

SciTech Connect

This presentation discusses a method of accounting for realistic levels of driver aggression to higher-level vehicle studies, including the impact of variation in real-world driving characteristics (acceleration and speed) on vehicle energy consumption and different powertrains (e.g., conventionally powered vehicles versus electrified drive vehicles [xEVs]). Aggression variation between drivers can increase fuel consumption by more than 50% or decrease it by more than 20% from average. The normalized fuel consumption deviation from average as a function of population percentile was found to be largely insensitive to powertrain. However, the traits of ideal driving behavior are a function of powertrain. In conventional vehicles, kinetic losses dominate rolling resistance and aerodynamic losses. In xEVs with regenerative braking, rolling resistance and aerodynamic losses dominate. The relation of fuel consumption predicted from real-world drive data to that predicted by the industry-standard HWFET, UDDS, LA92, and US06 drive cycles was not consistent across powertrains, and varied broadly from the mean, median, and mode of real-world driving. A drive cycle synthesized by NREL's DRIVE tool accurately and consistently reproduces average real-world for multiple powertrains within 1%, and can be used to calculate the fuel consumption effects of varying levels of driver aggression.

Neubauer, J.; Wood, E.

2013-05-01T23:59:59.000Z

187

CR-39 track etching and blow up method  

DOE Patents (OSTI)

This invention is a method of etching tracks in CR-39 foil to obtain uniformly sized tracks. The invention comprises a step of electrochemically etching the foil at a low frequency and a ''blow-up'' step of electrochemically etching the foil at a high frequency.

Hankins, D.E.

1985-10-15T23:59:59.000Z

188

Integrated Ecogenomics Study for Bioremediation of Cr(VI) at Hanford 100H Area  

E-Print Network (OSTI)

reducer isolated from the Hanford 100H site capable of Iron(study for bioremediation of Cr(VI) at Hanford 100H area RomyVI)contamination at Hanford ?? Cr(VI) highly soluble, toxic

Chakraborty, Romy

2008-01-01T23:59:59.000Z

189

Audit Report: CR-B-97-03 | Department of Energy  

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

CR-B-97-03 May 6, 1997 Followup Audit on the Procurement of Support Services for the Energy Information Administration Audit Report: CR-B-97-03 More Documents & Publications...

190

Audit Report: CR-B-97-02 | Department of Energy  

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

2 Audit Report: CR-B-97-02 April 4, 1997 Audit of Department of Energy's Contractor Salary Increase Funds Audit Report: CR-B-97-02 More Documents & Publications Inspection Report:...

191

Audit Report: CR-B-95-06 | Department of Energy  

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

5-06 Audit Report: CR-B-95-06 June 30, 1995 Audit of Department of Energy Support Service Contracting Audit Report: CR-B-95-06 More Documents & Publications Audit Report: IG-0427...

192

Audit Report: CR-FS-97-02 | Department of Energy  

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

7-02 Audit Report: CR-FS-97-02 May 1, 1997 Audit of the Department of Energy's Consolidated Financial Statements for Fiscal Year 1996 Audit Report: CR-FS-97-02 More Documents &...

193

Audit Report: CR-B-02-02 | Department of Energy  

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

Report: CR-B-02-02 Audit Report: CR-B-02-02 August 22, 2002 Procurement Administration at Brookhaven National Laboratory In May 1999, the Office of Inspector General evaluated...

194

Lightest Isotope of Bh Produced Via the 209Bi(52Cr,n)260Bh Reaction  

E-Print Network (OSTI)

models. For many years, “cold fusion” reactions utilizingproduced via the new “cold fusion” reaction 209 Bi( 52 Cr,

2007-01-01T23:59:59.000Z

195

OEPN200.IndependentStudy 1-4cr. Individualstudiestomeetidentified,studentneeds.Prerequisite:admission  

E-Print Network (OSTI)

and ash handling proce- dures. Restricted to OEPO, OEIM majors. OEPO 103. Power Plant Overview I 5 cr,qualitycontrolandassurance,analyticalprocedures,sampleprepara- tion,andweighingandmeasuringtechniques.Restrictedtomajors. OEPO 102. Coal Handling 2 cr. Safety majors. OEPO 104. Power Plant Overview II 5 cr. Power plant systems, basic water chemistry, fuels

Castillo, Steven P.

196

HRTM 362. Food Service Management 3 cr. Purchasing, cost control, sanitation, nutrition and other managerial con-  

E-Print Network (OSTI)

Experience 1-6 cr. Field experience (internship) for Hotel, Restaurant, and Tourism Man- agement Program. Hospitality and Tourism Research and Applications 3 cr. An overview of research techniques utilized by today. Prereq- uisites: HRTM 421 and HRTM 422. HRTM 431. Hotel Facilities Management 3 cr. Analysis of systems

Castillo, Steven P.

197

Smart Grid as a Driver for Energy-Intensive Industries: A Data Center Case  

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

Smart Grid as a Driver for Energy-Intensive Industries: A Data Center Case Smart Grid as a Driver for Energy-Intensive Industries: A Data Center Case Study Title Smart Grid as a Driver for Energy-Intensive Industries: A Data Center Case Study Publication Type Conference Paper LBNL Report Number LBNL-6104E Year of Publication 2012 Authors Ganti, Venkata, and Girish Ghatikar Conference Name Grid-Interop 2012 Date Published 12/2012 Conference Location Irving, TX Keywords data centers, market sectors, technologies Abstract The Smart Grid facilitates integration of supply- and demand-side services, allowing the end-use loads to be dynamic and respond to changes in electricity generation or meet localized grid needs. Expanding from previous work, this paper summarizes the results from field tests conducted to identify demand response opportunities in energy-intensive industrial facilities such as data centers. There is a significant opportunity for energy and peak-demand reduction in data centers as hardware and software technologies, sensing, and control methods can be closely integrated with the electric grid by means of demand response. The paper provides field test results by examining distributed and networked data center characteristics, end-use loads and control systems, and recommends opportunities and challenges for grid integration. The focus is on distributed data centers and how loads can be "migrated" geographically in response to changing grid supply (increase/decrease). In addition, it examines the enabling technologies and demand-response strategies of high performance computing data centers. The findings showed that the studied data centers provided average load shed of up to 10% with short response times and no operational impact. For commercial program participation, the load-shed strategies must be tightly integrated with data center automation tools to make them less resource-intensive.

198

Battery Electric Vehicles: Range Optimization and Diversification for the U.S. Drivers  

DOE Green Energy (OSTI)

Properly selecting the driving range is critical for accurately predicting the market acceptance and the resulting social benefits of BEVs. Analysis of transportation technology transition could be biased against battery electric vehicles (BEV) and mislead policy making, if BEVs are not represented with optimal ranges. This study proposes a coherent method to optimize the BEV driving range by minimizing the range-related cost, which is formulated as a function of range, battery cost, energy prices, charging frequency, access to backup vehicles, and the cost and refueling hassle of operating the backup vehicle. This method is implemented with a sample of 36,664 drivers, representing U.S. new car drivers, based on the 2009 National Household Travel Survey data. Key findings are: 1) Assuming the near term (2015) battery cost at $405/kWh, about 98% of the sampled drivers are predicted to prefer a range below 200 miles, and about 70% below 100 miles. The most popular 20-mile band of range is 57 to77 miles, unsurprisingly encompassing the Leaf s EPA-certified 73-mile range. With range limited to 4 or 7 discrete options, the majority are predicted to choose a range below 100 miles. 2) Found as a statistically robust rule of thumb, the BEV optimal range is approximately 0.6% of one s annual driving distance. 3) Reducing battery costs could motivate demand for larger range, but improving public charging may cause the opposite. 4) Using a single range to represent BEVs in analysis could significantly underestimate their competitiveness e.g. by $3226/vehicle if BEVs are represented with 73-mile range only or by $7404/BEV if with 150-mile range only. Range optimization and diversification into 4 or 7 range options reduce such analytical bias by 78% or 90%, respectively.

Lin, Zhenhong [ORNL

2012-01-01T23:59:59.000Z

199

Low-jitter high-power thyristor array pulse driver and generator  

DOE Patents (OSTI)

A method and apparatus for generating low-jitter, high-voltage and high-current pulses for driving low impedance loads such as detonator fuses uses a MOSFET driver which, when triggered, discharges a high-voltage pre-charged capacitor into the primary of a toroidal current-multiplying transformer with multiple isolated secondary windings. The secondary outputs are suitable for driving an array of thyristors that discharge a precharged high-voltage capacitor and thus generating the required high-voltage and high-current pulse.

Hanks, Roy L. (Byron, CA)

2002-01-01T23:59:59.000Z

200

Shaping the output pulse of a linear-transformer-driver module.  

SciTech Connect

We demonstrate that a wide variety of current-pulse shapes can be generated using a linear-transformer-driver (LTD) module that drives an internal water-insulated transmission line. The shapes are produced by varying the timing and initial charge voltage of each of the module's cavities. The LTD-driven accelerator architecture outlined in [Phys. Rev. ST Accel. Beams 10, 030401 (2007)] provides additional pulse-shaping flexibility by allowing the modules that drive the accelerator to be triggered at different times. The module output pulses would be combined and symmetrized by water-insulated radial-transmission-line impedance transformers [Phys. Rev. ST Accel. Beams 11, 030401 (2008)].

Long, Finis W.; McKee, G. Randall; Stoltzfus, Brian Scott; Woodworth, Joseph Ray; McKenney, John Lee; Fowler, William E.; Mazarakis, Michael Gerrassimos; Porter, John L.; Stygar, William A.; Savage, Mark Edward; LeChien, Keith, R.; Van De Valde, David M. (EG& G, Albuquerque, NM)

2008-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "driver cr eek" 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

Cr/sup 3 +/-doped colquiriite solid state laser material  

DOE Patents (OSTI)

Chromium doped colquiriite, LiCaAlF/sub 6/:Cr/sup 3 +/, is useful as a tunable laser crystal that has a high intrinsic slope efficiency, comparable to or exceeding that of alexandrite, the current leading performer of vibronic sideband Cr/sup 3 +/ lasers. The laser output is tunable from at least 720 nm to 840 nm with a measured slope efficiency of about 60% in a Kr laser pumped laser configuration. The intrinsic slope efficiency (in the limit of large output coupling) may approach the quantum defect limited value of 83%. The high slope efficiency implies that excited state absorption (ESA) is negligible. The potential for efficiency and the tuning range of this material satisfy the requirements for a pump laser for a high density storage medium incorporating Nd/sup 3 +/ or Tm/sup 3 +/ for use in a multimegajoule single shot fusion research facility. 4 figs.

Payne, S.A.; Chase, L.L.; Newkirk, H.W.; Krupke, W.F.

1988-03-31T23:59:59.000Z

202

Cr{sub 2}Nb-based alloy development  

SciTech Connect

This paper summarizes recent progress in developing Cr{sub 2}Nb/Cr(Nb) alloys for structural use in advanced fossil energy conversion systems. Alloy additions were added to control the microstructure and mechanical properties. Two beneficial elements have been identified among all alloying additions added to the alloys. One element is effective in refining the coarse eutectic structure and thus substantially improves the compressive strength and ductility of the alloys. The other element enhances oxidation resistance without sacrificing the ductility. The tensile properties are sensitive to cast defects, which can not be effectively reduced by HIPping at 1450-1580{degrees}C and/or directionally solidifying via a floating zone remelting method.

Liu, C.T.; Horton, J.A.; Carmichael, C.A.

1996-05-01T23:59:59.000Z

203

Cr.sup.3+ -doped colquiriite solid state laser material  

DOE Patents (OSTI)

Chromium doped colquiriite, LiCaAlF.sub.6 :Cr.sup.3+, is useful as a tunable laser crystal that has a high intrinsic slope efficiency, comparable to or exceeding that of alexandrite, the current leading performer of vibronic sideband Cr.sup.3+ lasers. The laser output is tunable from at least 720 nm to 840 nm with a measured slop efficiency of about 60% in a Kr laser pumped laser configuration. The intrinsic slope efficiency (in the limit of large output coupling) may approach the quantum defect limited value of 83%. The high slope efficiency implies that excited state absorption (ESA) is negligible. The potential for efficiency and the tuning range of this material satisfy the requirements for a pump laser for a high density storage medium incorporating Nd.sup.3+ or Tm.sup.3+ for use in a multimegajoule single shot fusion research facility.

Payne, Stephen A. (Castro Valley, CA); Chase, Lloyd L. (Livermore, CA); Newkirk, Herbert W. (Livermore, CA); Krupke, William F. (Pleasanton, CA)

1989-01-01T23:59:59.000Z

204

Design of Accumulator and Compressor Rings for the Project-X Based Proton Driver  

SciTech Connect

A Muon Collider (MC) and a Neutrino Factory (NF) - which may be considered as a step towards a MC - both require a high-power ({approx}4 MW) proton driver providing short (<1 m r.m.s. length) bunches for muon production. However, the driver repetition rates required for these two machines are different: {approx}15 Hz for MC and {approx}60 Hz for NF. This difference suggests employing two separate rings: one for accumulation of the proton beam from the Project-X linac in a few (e.g. 4) long bunches, the other for bunch compression - one by one for NF or all at a time for MC with simultaneous delivery to the target. The lattice requirements for these two rings are different: the momentum compaction factor in the accumulator ring should be large (and possibly negative) to avoid the microwave instability, while the compressor ring can be nearly isochronous in order to limit the required RF voltage and reduce the dispersion contribution to the beam size. In the present report we consider ring lattice designs which achieve these goals.

Alexahin, Y.; Neuffer, D.; /Fermilab

2012-05-01T23:59:59.000Z

205

Breakeven Cost for Residential Photovoltaics in the United States: Key Drivers and Sensitivities (Report Summary) (Presentation)  

DOE Green Energy (OSTI)

"Break-even cost" for photovoltaic (PV) technology is defined as the point where the cost of PV-generated electricity equals the cost of electricity purchased from the grid. Break-even cost is expressed in $/W of an installed system. Achieving break-even cost is a function of many variables. Consequently, break-even costs vary by location and time for a country, such as the United States, with a diverse set of resources, electricity prices, and other variables. In this presentation, we introduce an analysis of PV break-even costs for residential customers in the United States, including an evaluation of some of the key drivers of PV breakeven both regionally and over time. This presentation includes our methodology and presents results for both near-term residential breakeven costs(2009) and future market sensitivities of break-even costs (2015). See also the the report "Break-Even Cost for Residential Photovoltaics in the United States: Key Drivers and Sensitivities". Presentation for NREL/TP-6A2-45991.

Denholm, P.; Margolis, R. M.; Ong, S.; Roberts, B.

2009-12-01T23:59:59.000Z

206

Data Compilation for AGR-3/4 Driver Particle Composite LEU03-09T  

SciTech Connect

This document is a compilation of characterization data for the AGR-3/4 driver fuel coated particle composite LEU03-09T, a composite of four batches of TRISO-coated, nominally 350 {micro}m diameter, 19.7% low enrichment uranium oxide/uranium carbide kernels (LEUCO). The AGR-3/4 driver fuel particles were fabricated using the AGR-1 baseline coating conditions and consist of a spherical kernel coated with an {approx}50% dense carbon buffer layer (100 {micro}m nominal thickness) followed by a dense inner pyrocarbon layer (40 {micro}m nominal thickness) followed by a SiC layer (35 {micro}m nominal thickness) followed by another dense outer pyrocarbon layer (40 {micro}m nominal thickness). the coated particles were produced by ORNL for the Advanced Gas Reactor Fuel Development and Qualification (AGR) program to be put into compacts, along with designed-to-fail particles, for insertion in the AGR-3 and AGR-4 irradiation test capsules. The kernels were obtained from BWXT and identified as composite G73V-20-69303. The BWXT kernel lot G73V-20-69303 was riffled into sublots for characterization and coating by ORNL and identified as LEU03-?? (where ?? is a series of integers beginning with 01).

Hunn, John D [ORNL; Lowden, Richard Andrew [ORNL

2007-03-01T23:59:59.000Z

207

Review: Balancing Limiting Factors and Economic Drivers to Achieve Sustainable Midwestern US Agricultural Residue Feedstock Supplies  

Science Conference Proceedings (OSTI)

Advanced biofuels will be developed using cellulosic feedstock rather than grain or oilseed crops that can also be used for food and feed. To be sustainable, these new agronomic production systems must be economically viable without degrading soil resources. This review examines six agronomic factors that collectively define many of the limits and opportunities for harvesting crop residue for biofuel feedstock. These six “limiting factors” are discussed in relationship to economic drivers associated with harvesting corn (Zea mays L.) stover as a potential cellulosic feedstock. The limiting factors include soil organic carbon, wind and water erosion, plant nutrient balance, soil water and temperature dynamics, soil compaction, and off-site environmental impacts. Initial evaluations using the Revised Universal Soil Loss Equation 2.0 (RUSLE2) show that a single factor analysis based on simply meeting tolerable soil loss might indicate stover could be harvested sustainably, but the same analysis based on maintaining soil organic carbon shows the practice to be non-sustainable. Modifying agricultural management to include either annual or perennial cover crops is shown to meet both soil erosion and soil carbon requirements. The importance of achieving high yields and planning in a holistic manner at the landscape scale are also shown to be crucial for balancing limitations and drivers associated with renewable bioenergy production.

Wally W. Wilhelm; J. Richard Hess; Douglas L. Karlen; David J. Muth; Jane M. F. Johnson; John M. Baker; Hero T. Gollany; Jeff M. Novak; Diane E. Stott; Gary E. Varvel

2010-10-01T23:59:59.000Z

208

PCA9633 4-bit Fm+ I2C-bus LED driver  

E-Print Network (OSTI)

Red/Green/Blue/Amber (RGBA) color mixing applications. Each LED output has its own 8-bit resolution (256 steps) fixed frequency Individual PWM controller that operates at 97 kHz with a duty cycle that is adjustable from 0 % to 99.6 % to allow the LED to be set to a specific brightness value. A fifth 8-bit resolution (256 steps) Group PWM controller has both a fixed frequency of 190 Hz and an adjustable frequency between 24 Hz to once every 10.73 seconds with a duty cycle that is adjustable from 0 % to 99.6 % that is used to either dim or blink all LEDs with the same value. Each LED output can be off, on (no PWM control), set at its Individual PWM controller value or at both Individual and Group PWM controller values. The LED output driver is programmed to be either open-drain with a 25 mA current sink capability at 5 V or totem pole with a 25 mA sink, 10 mA source capability at 5 V. The PCA9633 operates with a supply voltage range of 2.3 V to 5.5 V and the outputs are 5.5 V tolerant. LEDs can be directly connected to the LED output (up to 25 mA, 5.5 V) or controlled with external drivers and a minimum amount of discrete components for larger current or higher voltage LEDs.

unknown authors

2008-01-01T23:59:59.000Z

209

Low-cost, highly efficient, and tunable ultrafast laser technology based on directly diode-pumped Cr:Colquiriites  

E-Print Network (OSTI)

This doctoral project aims to develop robust, ultra low-cost ($5,000-20,000), highly-efficient, and tunable femtosecond laser technology based on diode-pumped Cr:Colquiriite gain media (Cr:LiCAF, Cr3+:LiSAF and Cr:LiSGaF). ...

Demirbas, Umit

2010-01-01T23:59:59.000Z

210

Drivers of demand, interrelationships, and nutritional impacts within the nonalcoholic beverage complex  

E-Print Network (OSTI)

This study analyzes the economic and demographic drivers of household demand for at-home consumption of nonalcoholic beverages in 1999. Drivers of available intake of calories, calcium, vitamin C, and caffeine associated with the purchase of nonalcoholic beverages also are analyzed. The 1999 ACNielsen HomeScan Panel, purchased by the U. S. Department of Agriculture, Economic Research Service, is the source of the data for this project. Many different classifications of beverages were analyzed including milk(whole, reduced fat, flavored, and non-flavored), regular and low-calorie carbonated soft drinks, powdered soft drinks, isotonics(sports drinks), juices(orange, apple, vegetable, and other juices), fruit drinks, bottled water, coffee(regular and decaffeinated), and tea(regular and decaffeinated). Probit models were used to find demographic drivers that affect the choice to purchase a nonalcoholic beverage. Heckman sample selection models and cross tabulations were used to find demographic patterns pertaining to the amount of purchase of the nonalcoholic beverages. The nutrient analysis indicated that individuals receive 211 calories, 217 mg of calcium, 45 mg of vitamin C, and 95 mg of caffeine per day from all nonalcoholic beverages. A critical finding for the nutrient analysis was that persons within households below 130% of poverty were receiving more calories and caffeine from nonalcoholic beverages compared to persons within households above 130% of poverty. Likewise, persons in households below 130% of poverty were receiving less calcium and vitamin C from nonalcoholic beverages compared to persons in households above 130% of poverty. Price and cross-price elasticities were examined using the LA/AIDS model. Methodological concerns of data frequency, beverage aggregations, and censoring techniques were explored and discussed. Own-price and cross-price elasticities for the beverages were uncovered. Price elasticities by selected demographic groups also were investigated. Results indicated that price elasticities varied by demographics, specifically for race, region, and presence of children within the household. The information uncovered in this dissertation helps to update consumer demand knowledge and nutritional intake understanding in relation to nonalcoholic beverages. The information can be used as a guide for marketing strategists for targeting and promotion as well as for policy makers looking to improve nutritional intake received from nonalcoholic beverages.

Pittman, Grant Falwell

2004-08-01T23:59:59.000Z

211

Improved oxidation sulfidation resistance of Fe-Cr-Ni alloys  

DOE Patents (OSTI)

High temperature resistance of Fe-Cr-Ni alloy compositions to oxidative and/or sulfidative conditions is provided by the incorporation of about 1 to 8 wt % of Zr or Nb and results in a two-phase composition having an alloy matrix as the first phase and a fine grained intermetallic composition as the second phase. The presence and location of the intermetallic composition between grains of the matrix provides mechanical strength, enhanced surface scale adhesion, and resistance to corrosive attack between grains of the alloy matrix at temperatures of 500 to 1000/sup 0/C.

Natesan, K.; Baxter, D.J.

1983-07-26T23:59:59.000Z

212

The response of CR-39 nuclear track detector to 1-9 MeV protons  

SciTech Connect

The response of CR-39 nuclear track detector (TasTrak) to protons in the energy range of 0.92-9.28 MeV has been studied. Previous studies of the CR-39 response to protons have been extended by examining the piece-to-piece variability in addition to the effects of etch time and etchant temperature; it is shown that the shape of the CR-39 response curve to protons can vary from piece-to-piece. Effects due to the age of CR-39 have also been studied using 5.5 MeV alpha particles over a 5-year period. Track diameters were found to degrade with the age of the CR-39 itself rather than the age of the tracks, consistent with previous studies utilizing different CR-39 over shorter time periods.

Sinenian, N.; Rosenberg, M. J.; Manuel, M.; McDuffee, S. C.; Casey, D. T.; Zylstra, A. B.; Rinderknecht, H. G.; Gatu Johnson, M.; Seguin, F. H.; Frenje, J. A.; Li, C. K.; Petrasso, R. D. [Plasma Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-0001 (United States)

2011-10-15T23:59:59.000Z

213

Uniform irradiation of adjustable target spots in high-power laser driver  

Science Conference Proceedings (OSTI)

For smoothing and shaping the on-target laser patterns flexibly in high-power laser drivers, a scheme has been developed that includes a zoom lens array and two-dimensional smoothing by spectral dispersion (SSD). The size of the target pattern can be controlled handily by adjusting the focal length of the zoom lens array, while the profile of the pattern can be shaped by fine tuning the distance between the target and the focal plane of the principal focusing lens. High-frequency stripes inside the pattern caused by beamlet interference are wiped off by spectral dispersion. Detailed simulations indicate that SSD works somewhat differently for spots of different sizes. For small spots, SSD mainly smooths the intensity modulation of low-to-middle spatial frequency, while for large spots, SSD sweeps the fine speckle structure to reduce nonuniformity of middle-to-high frequency. Spatial spectra of the target patterns are given and their uniformity is evaluated.

Jiang Xiujuan; Li Jinghui; Li Huagang; Li Yang; Lin Zunqi

2011-09-20T23:59:59.000Z

214

Rotating fiber array molecular driver and molecular momentum transfer device constructed therewith  

DOE Patents (OSTI)

A rotating fiber array molecular driver is disclosed which includes a magnetically suspended and rotated central hub to which is attached a plurality of elongated fibers extending radially therefrom. The hub is rotated so as to straighten and axially extend the fibers and to provide the fibers with a tip speed which exceeds the average molecular velocity of fluid molecules entering between the fibers. Molecules colliding with the sides of the rotating fibers are accelerated to the tip speed of the fiber and given a momentum having a directional orientation within a relatively narrow distribution angle at a point radially outward of the hub, which is centered and peaks at the normal to the fiber sides in the direction of fiber rotation. The rotating fiber array may be used with other like fiber arrays or with other stationary structures to form molecular momentum transfer devices such as vacuum pumps, molecular separators, molecular coaters, or molecular reactors.

Milleron, Norman (1854 San Juan, Berkeley, CA 94707)

1983-01-01T23:59:59.000Z

215

Processing of LaCrO{sub 3} for solid oxide fuel cell applications  

DOE Green Energy (OSTI)

Objectives of this project is to produce LaCrO{sub 3} for the interconnect in solid oxide fuel cells. The project is divided into three areas: reproducible powder synthesis, sintering of LaCrO{sub 3}-based powders, and co-sintering of LaCrO{sub 3}-based powders with cathode and electrolyte materials. The project has been in place for 3 months; construction is underway for the spray pyrolysis system and studies initiated on the organometallic precursor.

Huebner, W.; Nasrallah, M.M.; Anderson, H.U.

1993-11-01T23:59:59.000Z

216

Motor Vehicle Crash Fatalities and Injuries: An Analysis of the Relationship of Roadway, Driver, Vehicle Characteristics in Oregon  

E-Print Network (OSTI)

Motor Vehicle Crash Fatalities and Injuries: An Analysis of the Relationship of Roadway, Driver, Vehicle Characteristics in Oregon Motor Vehicle Crash Fatalities and Injuries: An Analysis,000 population among Oregon counties from 2000-2005 ranged from 6.64-211.17. In the event of a severe motor

Bertini, Robert L.

217

Phase Diagram of CuCrO2 in a Magnetic Field  

SciTech Connect

The magnetic phase diagram of CuCrO2 is constructed as a function of magnetic field and anisotropy using a trial spin state built from harmonics of a fundamental ordering wavevector. Whereas the multiferroic phase of CuCrO2 is a modified spin spiral with a 3-sublattice (SL) period, the phase diagram also contains 1-SL, 2-SL, 4-SL, and 5-SL collinear states which may be accessi- ble in the nonstoichiometric compound CuCrO2+ . For small anisotropy, CuCrO2 is predicted to undergo a transition between two modified spiral states with an intervening 3-SL collinear phase.

Fishman, Randy Scott [ORNL

2011-01-01T23:59:59.000Z

218

Ligand Rearrangement Reactions of Cr(CO)6 in Alcohol Solutions:Experiment and Theory  

SciTech Connect

The ligand rearrangement reaction of Cr(CO)6 is studied in a series of alcohol solutions using ultrafast, infrared spectroscopy and Brownian dynamics simulations.

Shanoski, Jennifer E.; Glascoe, Elizabeth A.; Harris, Charles B.

2005-09-24T23:59:59.000Z

219

Investigation on Oxidation Resistance of NiCoCrAlY Coating ...  

Science Conference Proceedings (OSTI)

Presentation Title, Investigation on Oxidation Resistance of NiCoCrAlY Coating Irradiated by High Current Pulsed Electron Beam. Author(s), Xianxiu Mei, Cunxia  ...

220

A29: Microstructure and Properties of Nano-structured 9Cr Oxide ...  

Science Conference Proceedings (OSTI)

Abstract Scope, Nanostructured oxide dispersion strengthened (ODS) steels are ... A 9Cr ODS ferritic/martensitic steel was produced by gas atomization and hot ...

Note: This page contains sample records for the topic "driver cr eek" 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

Alloy Design of 9% Cr Steel for High Efficiency Ultra-Supercritical ...  

Science Conference Proceedings (OSTI)

Presentation Title, Alloy Design of 9% Cr Steel for High Efficiency Ultra- Supercritical Power Plants. Author(s), Fujio Abe. On-Site Speaker (Planned), Fujio Abe.

222

Microstructure and 9MeV Au+ Irradiation Effects of 9Cr-ODS(Oxide ...  

Science Conference Proceedings (OSTI)

Abstract Scope, A kind of 9Cr-ODS(oxide dispersion strengthened) steel was ... Generation of Bulk Nanocomposites and Supersaturated Solid Solutions by ...

223

CORROSION OF Fe-10Al-Cr ALLOYS BY COAL CHAR  

E-Print Network (OSTI)

off-gas from a typical gasifier contains large percentagesIOAl-Cr alloys at coal-gasifier This FeS and CaS0 operating

Gordon, B.A.

2011-01-01T23:59:59.000Z

224

Materials Reliability Program: Reevaluation of Stainless Steel Components in NUREG/CR-6674 (MRP-172)  

Science Conference Proceedings (OSTI)

NUREG/CR-6674, published June 2000, described a probabilistic fracture mechanics evaluation of light water reactor components subject to environmental fatigue effects.

2005-11-15T23:59:59.000Z

225

Al-Cr -2007-1 February 1, 2007 Aluminum and Chromium Leaching ...  

Al-Cr -2007-1 February 1, 2007 Aluminum and Chromium Leaching Workshop Atlanta, GA January 23 – 24, 2007 Crowne Plaza – Airport Feedback Questionnaire

226

The hydrogen embrittlement of Ni-Cr-Fe alloys  

Science Conference Proceedings (OSTI)

It has been proposed that the stress corrosion cracking (SCC) of nickel-based alloys in low-temperature hydrogenated water is due to hydrogen embrittlement. The purpose of this work was to investigate the role of chromium on hydrogen embrittlement of Ni-Cr-Fe alloys and thus develop a better understanding of the low-temperature SCC phenomenon. The effect of chromium on the hydrogen embrittlement was examined using tensile tests followed by material evaluation via scanning electron microscopy and light optical microscopy. Four alloys were prepared with chromium contents ranging from 6 wt. percent to 35 wt. percent. In the noncharged condition, ductility, as measured by the percent elongation or reduction in area, increased as the alloy chromium content increased. Hydrogen appeared to have only minor effects on the mechanical properties of the low chromium alloys. The addition of hydrogen had a marked effect on the ductility of the higher chromium alloys. In the 26% chromium alloy, the elongation to failure was reduced from 53% to 14% with a change in fracture mode from ductile dimple to intergranular failure. A maximum in embrittlement was observed in the 26% Cr alloy. The maximum in embrittlement coincided with the minimum in stacking-fault energy. It is proposed that the increased hydrogen embrittlement in the high-chromium alloys is due to increased slip planarity caused by the low stacking-fault energy. Slip planarity did not appear to affect the fracture of the noncharged specimens.

Symons, D.M.

1996-12-31T23:59:59.000Z

227

Ion-driver fast ignition: Reducing heavy-ion fusion driver energy and cost, simplifying chamber design, target fab, tritium fueling and power conversion  

DOE Green Energy (OSTI)

Ion fast ignition, like laser fast ignition, can potentially reduce driver energy for high target gain by an order of magnitude, while reducing fuel capsule implosion velocity, convergence ratio, and required precisions in target fabrication and illumination symmetry, all of which should further improve and simplify IFE power plants. From fast-ignition target requirements, we determine requirements for ion beam acceleration, pulse-compression, and final focus for advanced accelerators that must be developed for much shorter pulses and higher voltage gradients than today's accelerators, to deliver the petawatt peak powers and small focal spots ({approx}100 {micro}m) required. Although such peak powers and small focal spots are available today with lasers, development of such advanced accelerators is motivated by the greater likely efficiency of deep ion penetration and deposition into pre-compressed 1000x liquid density DT cores. Ion ignitor beam parameters for acceleration, pulse compression, and final focus are estimated for two examples based on a Dielectric Wall Accelerator; (1) a small target with {rho}r {approx} 2 g/cm{sup 2} for a small demo/pilot plant producing {approx}40 MJ of fusion yield per target, and (2) a large target with {rho}r {approx} 10 g/cm{sup 2} producing {approx}1 GJ yield for multi-unit electricity/hydrogen plants, allowing internal T-breeding with low T/D ratios, >75 % of the total fusion yield captured for plasma direct conversion, and simple liquid-protected chambers with gravity clearing. Key enabling development needs for ion fast ignition are found to be (1) ''Close-coupled'' target designs for single-ended illumination of both compressor and ignitor beams; (2) Development of high gradient (>25 MV/m) linacs with high charge-state (q {approx} 26) ion sources for short ({approx}5 ns) accelerator output pulses; (3) Small mm-scale laser-driven plasma lens of {approx}10 MG fields to provide steep focusing angles close-in to the target (built-in as part of each target); (4) beam space charge-neutralization during both drift compression and final focus to target. Except for (1) and (2), these critical issues may be explored on existing heavy-ion storage ring accelerator facilities.

Logan, G.; Callahan-Miller, D.; Perkins, J.; Caporaso, G.; Tabak, M.; Moir, R.; Meier, W.; Bangerter, Roger; Lee, Ed

1998-04-01T23:59:59.000Z

228

The band structure-matched and highly spin-polarized Co{sub 2}CrZ/Cu{sub 2}CrAl Heusler alloys interface  

Science Conference Proceedings (OSTI)

Here we present a lattice- and band-matched nonmagnetic L21 Heusler alloy spacer for Co{sub 2}CrZ Heusler alloys where Z=Si or Al. By first principle calculations, we find that the band structure matching is almost perfectly satisfied when they are interfaced with Cu{sub 2}CrAl. Despite the loss of half-metallicity due to interface states, our calculations show that the spin polarization at these band-matched (001) interfaces is higher than 80%. These lattice-matched Co{sub 2}CrZ/Cu{sub 2}CrAl interfaces with excellent band matching and enhanced spin scattering asymmetry are promising for all-metallic current-perpendicular-to-plane giant magnetoresistance device applications.

Ko, V.; Han, G.; Qiu, J. [Data Storage Institute, Agency for Science, Technology and Research, 5 Engineering Drive 1, Singapore 117608 (Singapore); Feng, Y. P. [Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542 (Singapore)

2009-11-16T23:59:59.000Z

229

Structure determination of thermal-spray materials using synchrotron x-ray microtomography. [Cr[sub 3]C[sub 2]/NiCr thermal-spray coating  

SciTech Connect

The structure of materials prepared using thermal spray methods is difficult to determine using conventional microscopy of porosimetry methods. The difficulties inherent in these approaches can be circumvented using synchrotron computed microtomography(CMT). An example of the use of CMT to produce a high resolution non- destructive image of a thermal-spray coating is Cr[sub 3]C[sub 2]/NiCr is described here to illustrate the power of this technique.

Spanne, P.; Jones, K.W. (Brookhaven National Lab., Upton, NY (United States)); Herman, H. (State Univ. of New York, Stony Brook, NY (United States)); Riggs, W.L. (General Electric Co., Cincinnati, OH (United States). Aircraft Engines)

1991-01-01T23:59:59.000Z

230

Combined electrochemical/surface science investigations of Pt/Cr alloy electrodes  

DOE Green Energy (OSTI)

Chromium addition improves the performance of carbon-supported Pt electrodes for oxygen reduction in phosphoric acid fuel cells. To clarify the role of chromium and its chemical nature at the electrode surface, we have performed a combined electrochemical/surface science investigation of a series of bulk Pt/sub x/Cr/sub (1-x)/ alloys (0 less than or equal to x less than or equal to 1). In this paper we report the surface characterization of the starting electrodes by XPS, electrochemical results from cyclic voltammetry in 85% phosphoric acid, and post-electrochemical surface characterization. For Cr contents less than 40%, the electrodes were quite stable up to +1.6 V vs DHE. The surface Cr was largely oxidized to Cr/sup +3/ for surfaces at open circuit ad those exposed at potentials < +1.4 V. For intermediate Cr levels, Cr was leached from the surface region by +1.5 V, leaving a porous Pt electrode with increased electrochemical hydrogen adsorption capacity. For Pt/sub 0.2//Cr/sub 0.8/, treatments at +1.4 V and above led to the appearance of Pt/sup 4 +/ and Cr/sup 6 +/ species, apparently stabilized in a porous phosphate overlayer up to 50 A thick. The Pt electrochemical hydrogen adsorption capacity was simultaneously increased by a factor of 15. 18 refs., 4 figs.

Daube, K.A.; Paffett, M.T.; Gottesfeld, S.; Campbell, C.T.

1985-01-01T23:59:59.000Z

231

Neural network based controller for Cr6+-Fe2+ batch reduction process  

Science Conference Proceedings (OSTI)

An automated pilot plant has been designed and commissioned to carry out online/real-time data acquisition and control for the Cr^6^+-Fe^2^+ reduction process. Simulated data from the Cr^6^+-Fe^2^+ model derived are validated with online data and laboratory ... Keywords: Batch system, Neural Networks, ORP, Redox process

Chew Chun Ming; M. A. Hussain; M. K. Aroua

2011-11-01T23:59:59.000Z

232

SF6432-CR (02-01-12) Cost Reimbursement  

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

2/01/12 2/01/12 Page 1 of 24 Printed copies of this document are uncontrolled. Retrieve latest version electronically. SANDIA CORPORATION SF 6432-CR (02/01/12) SECTION II STANDARD TERMS AND CONDITIONS FOR COST-REIMBURSEMENT CONTRACTS THE FOLLOWING CLAUSES APPLY TO THIS CONTRACT AS INDICATED UNLESS SPECIFICALLY DELETED, OR EXCEPT TO THE EXTENT THEY ARE SPECIFICALLY IDENTIFIED AS BEING CHANGED, SUPPLEMENTED, OR AMENDED IN WRITING ISSUED BY THE SANDIA CONTRACTING REPRESENTATIVE. (CTRL+CLICK ON A LINK BELOW TO ADVANCE DIRECTLY TO THAT SECTION) ACCEPTANCE OF TERMS AND CONDITIONS (Ts&Cs) ALLOWABLE COSTS AND FEE APPLICABLE LAW ASSIGNMENT AUTHORIZED DISTRIBUTORS BANKRUPTCY CLAIM OF COSTS INCURRED DEFINITIONS DISPUTES EXCESS FREIGHT CHARGES

233

On the Utility of Antiprotons as Drivers for Inertial Confinement Fusion  

DOE Green Energy (OSTI)

By contrast to the large mass, complexity and recirculating power of conventional drivers for inertial confinement fusion (ICF), antiproton annihilation offers a specific energy of 90MJ/{micro}g and thus a unique form of energy packaging and delivery. In principle, antiproton drivers could provide a profound reduction in system mass for advanced space propulsion by ICF. We examine the physics underlying the use of antiprotons ({bar p}) to drive various classes of high-yield ICF targets by the methods of volumetric ignition, hotspot ignition and fast ignition. The useable fraction of annihilation deposition energy is determined for both {bar p}-driven ablative compression and {bar p}-driven fast ignition, in association with 0-D and 1-D target burn models. Thereby, we deduce scaling laws for the number of injected antiprotons required per capsule, together with timing and focal spot requirements. The kinetic energy of the injected antiproton beam required to penetrate to the desired annihilation point is always small relative to the deposited annihilation energy. We show that heavy metal seeding of the fuel and/or ablator is required to optimize local deposition of annihilation energy and determine that a minimum of {approx}3x10{sup 15} injected antiprotons will be required to achieve high yield (several hundred megajoules) in any target configuration. Target gains - i.e., fusion yields divided by the available p - {bar p} annihilation energy from the injected antiprotons (1.88GeV/{bar p}) - range from {approx}3 for volumetric ignition targets to {approx}600 for fast ignition targets. Antiproton-driven ICF is a speculative concept, and the handling of antiprotons and their required injection precision - temporally and spatially - will present significant technical challenges. The storage and manipulation of low-energy antiprotons, particularly in the form of antihydrogen, is a science in its infancy and a large scale-up of antiproton production over present supply methods would be required to embark on a serious R&D program for this application.

Perkins, L J; Orth, C D; Tabak, M

2003-10-20T23:59:59.000Z

234

Design and performance of a multiterawatt Cr:LiSrAlF[sub 6] laser system  

Science Conference Proceedings (OSTI)

We have developed a compact, flash-lamp-pumped Cr:LiSrAlF[sub 6] (Cr:LiSAF) laser system capable of producing femtosecond pulses exhibiting peak powers greater than 2 TW. Chirped pulse amplification in a Cr:LiSAF regenerative amplifier produces 15-mJ pulses at a 5-Hz repetition rate. Further amplification in Cr:LiSAF yields recompressed pulse energies of 280 mJ and a pulse duration of less than 135 fs at a 1.0-Hz repetition rate. We describe the design and performance of this laser as well as the optimization of chirped pulse amplification in flash-lamp-pumped Cr:LiSAF.

Ditmire, T.; Nguyen, H.; Perry, M.D. (Lawrence Livermore National Laboratory, P.O. Box 808, L-443, Livermore, California 94550 (United States))

1994-04-01T23:59:59.000Z

235

Mesoporous carbon -Cr2O3 composite as an anode material for lithium ion batteries  

SciTech Connect

Mesoporous carbon-Cr2O3 (M-C-Cr2O3) composite was prepared by co-assembly of in-situ formed phenolic resin, chromium precursor, and Pluronic block copolymer under acidic conditions, followed by carbonization at 750oC under Argon. The TEM results confirmed that the Cr2O3 nanoparticles, ranging from 10 to 20 nm, were well dispersed in the matrix of mesoporous carbon. The composite exhibited an initial reversible capacity of 710 mAh g-1 and good cycling stability, which is mainly due to the synergic effects of carbons within the composites, i.e. confining the crystal growth of Cr2O3 during the high temperature treatment step and buffering the volume change of Cr2O3 during the cycling step. This composite material is a promising anode material for lithium ion batteries.

Guo, Bingkun [ORNL; Chi, Miaofang [ORNL; Sun, Xiao-Guang [ORNL; Dai, Sheng [ORNL

2012-01-01T23:59:59.000Z

236

Ni6Cr5MoO18: A compensated half metal predicted from first-principles  

Science Conference Proceedings (OSTI)

NiCrO3 is semiconducting. It contains six molecular units in the conventional cell. By substituting one of the six Cr atoms with Mo in the conventional cell

Jing Wang; Ningning Zu; Zhijian Wu

2013-01-01T23:59:59.000Z

237

Break-Even Cost for Residential Solar Water Heating in the United States: Key Drivers and Sensitivities  

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

Break-even Cost for Residential Break-even Cost for Residential Solar Water Heating in the United States: Key Drivers and Sensitivities Hannah Cassard, Paul Denholm, and Sean Ong Technical Report NREL/TP-6A20-48986 February 2011 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Break-even Cost for Residential Solar Water Heating in the United States: Key Drivers and Sensitivities Hannah Cassard, Paul Denholm, and Sean Ong Prepared under Task No. SS10.2110 Technical Report

238

A real time status monitor for transistor bank driver power limit resistor in boost injection kicker power supply  

SciTech Connect

For years suffering of Booster Injection Kicker transistor bank driver regulator troubleshooting, a new real time monitor system has been developed. A simple and floating circuit has been designed and tested. This circuit monitor system can monitor the driver regulator power limit resistor status in real time and warn machine operator if the power limit resistor changes values. This paper will mainly introduce the power supply and the new designed monitoring system. This real time resistor monitor circuit shows a useful method to monitor some critical parts in the booster pulse power supply. After two years accelerator operation, it shows that this monitor works well. Previously, we spent a lot of time in booster machine trouble shooting. We will reinstall all 4 PCB into Euro Card Standard Chassis when the power supply system will be updated.

Mi, J.; Tan, Y.; Zhang, W.

2011-03-28T23:59:59.000Z

239

Low impedance z-pinch drivers without post-hole convolute current adders.  

SciTech Connect

Present-day pulsed-power systems operating in the terawatt regime typically use post-hole convolute current adders to operate at sufficiently low impedance. These adders necessarily involve magnetic nulls that connect the positive and negative electrodes. The resultant loss of magnetic insulation results in electron losses in the vicinity of the nulls that can severely limit the efficiency of the delivery of the system's energy to a load. In this report, we describe an alternate transformer-based approach to obtaining low impedance. The transformer consists of coils whose windings are in parallel rather than in series, and does not suffer from the presence of magnetic nulls. By varying the pitch of the coils windings, the current multiplication ratio can be varied, leading to a more versatile driver. The coupling efficiency of the transformer, its behavior in the presence of electron flow, and its mechanical strength are issues that need to be addressed to evaluate the potential of transformer-based current multiplication as a viable alternative to conventional current adder technology.

Savage, Mark Edward; Seidel, David Bruce; Mendel, Clifford Will, Jr.

2009-09-01T23:59:59.000Z

240

The high current, fast, 100ns, Linear Transformer Driver (LTD) developmental project at Sandia National Laboratories.  

Science Conference Proceedings (OSTI)

Sandia National Laboratories, Albuquerque, N.M., USA, in collaboration with the High Current Electronic Institute (HCEI), Tomsk, Russia, is developing a new paradigm in pulsed power technology: the Linear Transformer Driver (LTD) technology. This technological approach can provide very compact devices that can deliver very fast high current and high voltage pulses straight out of the cavity with out any complicated pulse forming and pulse compression network. Through multistage inductively insulated voltage adders, the output pulse, increased in voltage amplitude, can be applied directly to the load. The load may be a vacuum electron diode, a z-pinch wire array, a gas puff, a liner, an isentropic compression load (ICE) to study material behavior under very high magnetic fields, or a fusion energy (IFE) target. This is because the output pulse rise time and width can be easily tailored to the specific application needs. In this paper we briefly summarize the developmental work done in Sandia and HCEI during the last few years, and describe our new MYKONOS Sandia High Current LTD Laboratory.

Ward, Kevin S.; Long, Finis W.; Sinebryukhov, Vadim A. (High Current Electronic Institute (HCEI), Tomsk, Russia); Kim, Alexandre A. (High Current Electronic Institute (HCEI), Tomsk, RUSSIA); Wakeland, Peter Eric (Ktech Corporation, Albuquerque, NM); McKee, G. Randall; Woodworth, Joseph Ray; McDaniel, Dillon Heirman; Fowler, William E.; Mazarakis, Michael Gerrassimos; Porter, John Larry, Jr.; Struve, Kenneth William; Stygar, William A.; LeChien, Keith R.; Matzen, Maurice Keith

2010-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "driver cr eek" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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241

Beam dynamics studies in the driver LINAC pre-Stripper section of the RIA facility.  

SciTech Connect

The RIA facility driver linac consists of about 400 superconducting (SC) independently phased rf cavities. The linac is designed to accelerate simultaneously several-charge-state beams to generate as much as 400 kW of uranium beam power. The linac beam dynamics is most sensitive to the focusing and accelerating-structure parameters of the prestripper section, where the uranium beam is accelerated from 0.17 keV/u to 9.4 MeV/u. This section is designed to accept and accelerate 2 charge states (28 and 29) of uranium beam from an ECR ion source. The prestripper section must be designed to minimize the beam emittance distortion of this two-charge-state beam. In particular, the inter-cryostat spaces must be minimized and beam parameters near transitions of the accelerating and focusing lattices must be matched carefully. Several sources of possible effective emittance growth are considered in the design of the prestripper section and a tolerance budget is established. Numerical beam dynamics studies include realistic electric and magnetic 3-dimensional field distributions in the SC rf cavities and SC solenoids. Error effects in the longitudinal beam parameters are studied.

Lessner, E. S.; Ostroumov, P. N.

2003-07-10T23:59:59.000Z

242

DSP-Based Sensor-less Permanent Magnet Synchronous Motor Driver With Quasi-Sine PWM for Air-Conditioner Rotary Compressor.  

E-Print Network (OSTI)

??This thesis presented a sensor-less permanent magnet synchronous motor (PMSM) driver for controlling air-conditioner rotary compressor speed. In this thesis, a quasi-sine pulse-width modulation (PWM)… (more)

Liu, Li-hsiang

2012-01-01T23:59:59.000Z

243

Assessing Energy Impact of Plug-In Hybrid Electric Vehicles: Significance of Daily Distance Variation over Time and Among Drivers  

Science Conference Proceedings (OSTI)

Accurate assessment of the impact of plug-in hybrid electric vehicles (PHEVs) on petroleum and electricity consumption is a necessary step toward effective policies. Variations in daily vehicle miles traveled (VMT) over time and among drivers affect PHEV energy impact, but the significance is not well understood. This paper uses a graphical illustration, a mathematical derivation, and an empirical study to examine the cause and significance of such an effect. The first two methods reveal that ignoring daily variation in VMT always causes underestimation of petroleum consumption and overestimation of electricity consumption by PHEVs; both biases increase as the assumed PHEV charge-depleting (CD) range moves closer to the average daily VMT. The empirical analysis based on national travel survey data shows that the assumption of uniform daily VMT over time and among drivers causes nearly 68% underestimation of expected petroleum use and nearly 48% overestimation of expected electricity use by PHEVs with a 40-mi CD range (PHEV40s). Also for PHEV40s, consideration of daily variation in VMT over time but not among drivers similar to the way the utility factor curve is derived in SAE Standard SAE J2841 causes underestimation of expected petroleum use by more than 24% and overestimation of expected electricity use by about 17%. Underestimation of petroleum use and overestimation of electricity use increase with larger-battery PHEVs.

Lin, Zhenhong [ORNL; Greene, David L [ORNL

2012-01-01T23:59:59.000Z

244

Analysis of a Cyclotron Based 400 MeV/u Driver System for a Radioactive Beam Facility  

E-Print Network (OSTI)

The creation of intense radioactive beams requires intense and energetic primary beams. A task force analysis of this subject recommended an acceleration system capable of 400 MeV/u uranium at 1 particle uA as an appropriate driver for such a facility. The driver system should be capable of accelerating lighter ions at higher intensity such that a constant final beam power (~100kW) is maintained. This document is a more detailed follow on to the previous analysis of such a system incorporating a cyclotron. The proposed driver pre-acceleration system consists of an ion source, radio frequency quadrupole, and linac chain capable of producing a final energy of 30 MeV/u and a charge (Q) to mass (A) of Q/A ~1/3. This acceleration system would be followed by a Separated Sector Cyclotron with a final output energy of 400 MeV/u. This system provides a more cost-effective solution in terms of initial capital investment as well as of operation compared to a fully linac system with the same primary beam output parameters.

F. Marti; R. C. York; H. Blosser; M. M. Gordon; D. Gorelov; T. Grimm; D. Johnson; P. Miller; E. Pozdeyev; J. Vincent; X. Wu; A. Zeller

1999-08-20T23:59:59.000Z

245

Disposition of Unirradiated Sodium Bonded EBR-II Driver Fuel Elements and HEU Scrap: Work Performed for FY 2007  

SciTech Connect

Specific surplus high enriched uranium (HEU) materials at the Idaho National Laboratory (INL) Materials and Fuels Complex (MFC) will be transferred to a designated off-site receiving facility. The DOE High Enriched Uranium Disposition Program Office (HDPO) will determine which materials, if any, will be prepared and transferred to an off-site facility for processing and eventual fabrication of fuel for nuclear reactors. These surplus HEU materials include approximately 7200 kg unirradiated sodium-bonded EBR-II driver fuel elements, and nearly 800 kg of HEU casting scrap from the process which formed various sodium-bonded fuels (including the EBR-II driver elements). Before the driver fuel can be packaged for shipment, the fuel elements will require removal of the sodium bond. The HEU scrap will also require repackaging in preparation for off-site transport. Preliminary work on this task was authorized by BWXT Y-12 on Nov 6, 2006 and performed in three areas: • Facility Modifications • Safety Documentation • Project Management

Karen A Moore

2007-04-01T23:59:59.000Z

246

Cr-Ga-N materials for negative electrodes in Li rechargeable batteries : structure, synthesis and electrochemical performance  

E-Print Network (OSTI)

Electrochemical performances of two ternary compounds (Cr2GaN and Cr3GaN) in the Cr-Ga-N system as possible future anode materials for lithium rechargeable batteries were studied. Motivation for this study was dealt in ...

Kim, Miso

2007-01-01T23:59:59.000Z

247

Thermodynamic Modeling and Experimental Study of the Fe-Cr-Zr System  

Science Conference Proceedings (OSTI)

Wide applications of zircaloys, stainless steels and their interactions in nuclear reactors require the knowledge on phase stability and thermodynamic property of the Fe-Cr-Zr system. This knowledge is also important to develop new Zr-contained Fe-Cr ferritic steels. This work aims at developing thermodynamic models for describing phase stability and thermodynamic property of the Fe-Cr-Zr system using the Calphad approach coupled with experimental study. Thermodynamic descriptions of the Fe-Cr and Cr-Zr systems were either directly adopted or slightly modified from literature. The Fe-Zr system has been remodeled to accommodate recent ab-initio calculation of formation enthalpies of various Fe-Zr compounds. Reliable ternary experimental data and thermodynamic models were mainly available in the Zr-rich region. Therefore, selected ternary alloys located in the vicinity of the eutectic valley of (Fe,Cr,Zr) and (Fe,Cr)2Zr laves phase in the Fe-rich region have been experimentally investigated in this study. Microstructure has been examined by using scanning electron microscope, energy-dispersive Xray spectroscopy and X-ray diffraction. These experimental results, along with the literature data were then used to develop thermodynamic models for phases in the Fe-Cr-Zr system. Calculated phase equilibria and thermodynamic properties of the ternary system yield satisfactory agreements with available experimental data, which gives the confidence to use these models as building blocks for developing a Zr, Fe and Cr contained multicomponent thermodynamic database for broader applications in nuclear reactors.

Yang, Ying [ORNL; Tan, Lizhen [ORNL; Bei, Hongbin [ORNL; Busby, Jeremy T [ORNL

2013-01-01T23:59:59.000Z

248

Experimental evaluation of a negative ion source for a heavy ionfusion negative ion driver  

DOE Green Energy (OSTI)

Negative halogen ions have recently been proposed as a possible alternative to positive ions for heavy ion fusion drivers because electron accumulation would not be a problem in the accelerator, and if desired, the beams could be photodetached to neutrals [1,2,3]. To test the ability to make suitable quality beams, an experiment was conducted at Lawrence Berkeley National Laboratory using chlorine in an RF-driven ion source. Without introducing any cesium (which is required to enhance negative ion production in hydrogen ion sources) a negative chlorine current density of 45 mA/cm{sup 2} was obtained under the same conditions that gave 57 mA/cm{sup 2} of positive chlorine, suggesting the presence of nearly as many negative ions as positive ions in the plasma near the extraction plane. The negative ion spectrum was 99.5% atomic chlorine ions, with only 0.5% molecular chlorine, and essentially no impurities. Although this experiment did not incorporate the type of electron suppression technology that is used in negative hydrogen beam extraction, the ratio of co-extracted electrons to Cl{sup -} was as low as 7 to 1, many times lower than the ratio of their mobilities, suggesting that few electrons are present in the near-extractor plasma. This, along with the near-equivalence of the positive and negative ion currents, suggests that the plasma in this region was mostly an ion-ion plasma. The negative chlorine current density was relatively insensitive to pressure, and scaled linearly with RF power. If this linear scaling continues to hold at higher RF powers, it should permit current densities of 100 mA/cm{sup 2}, sufficient for present heavy ion fusion injector concepts. The effective ion temperatures of the positive and negative ions appeared to be similar and relatively low for a plasma source.

Grisham, L.R.; Hahto, S.K.; Hahto, S.T.; Kwan, J.W.; Leung, K.N.

2005-01-18T23:59:59.000Z

249

Energy for 500 Million Homes: Drivers and Outlook for Residential Energy Consumption in China  

SciTech Connect

China's rapid economic expansion has propelled it to the rank of the largest energy consuming nation in the world, with energy demand growth continuing at a pace commensurate with its economic growth. The urban population is expected to grow by 20 million every year, accompanied by construction of 2 billion square meters of buildings every year through 2020. Thus residential energy use is very likely to continue its very rapid growth. Understanding the underlying drivers of this growth helps to identify the key areas to analyze energy efficiency potential, appropriate policies to reduce energy use, as well as to understand future energy in the building sector. This paper provides a detailed, bottom-up analysis of residential building energy consumption in China using data from a wide variety of sources and a modelling effort that relies on a very detailed characterization of China's energy demand. It assesses the current energy situation with consideration of end use, intensity, and efficiency etc, and forecast the future outlook for the critical period extending to 2020, based on assumptions of likely patterns of economic activity, availability of energy services, technology improvement and energy intensities. From this analysis, we can conclude that Chinese residential energy consumption will more than double by 2020, from 6.6 EJ in 2000 to 15.9 EJ in 2020. This increase will be driven primarily by urbanization, in combination with increases in living standards. In the urban and higher income Chinese households of the future, most major appliances will be common, and heated and cooled areas will grow on average. These shifts will offset the relatively modest efficiency gains expected according to current government plans and policies already in place. Therefore, levelling and reduction of growth in residential energy demand in China will require a new set of more aggressive efficiency policies.

Zhou, Nan; McNeil, Michael A.; Levine, Mark

2009-06-01T23:59:59.000Z

250

Experimental Evaluation of a Negative Ion Source for a Heavy Ion Fusion Negative Ion Driver  

DOE Green Energy (OSTI)

Negative halogen ions have recently been proposed as a possible alternative to positive ions for heavy ion fusion drivers because electron accumulation would not be a problem in the accelerator, and if desired, the beams could be photo-detached to neutrals. To test the ability to make suitable quality beams, an experiment was conducted at Lawrence Berkeley National Laboratory using chlorine in an RF-driven ion source. Without introducing any cesium (which is required to enhance negative ion production in hydrogen ion sources) a negative chlorine current density of 45 mA/cm{sup 2} was obtained under the same conditions that gave 57 45 mA/cm{sup 2} of positive chlorine, suggesting the presence of nearly as many negative ions as positive ions in the plasma near the extraction plane. The negative ion spectrum was 99.5% atomic chlorine ions, with only 0.5% molecular chlorine, and essentially no impurities. Although this experiment did not incorporate the type of electron suppression technology that i s used in negative hydrogen beam extraction, the ratio of co-extracted electrons to Cl{sup -} was as low as 7 to 1, many times lower than the ratio of their mobilities, suggesting that few electrons are present in the near-extractor plasma. This, along with the near-equivalence of the positive and negative ion currents, suggests that the plasma in this region was mostly an ion-ion plasma. The negative chlorine current density was relatively insensitive to pressure, and scaled linearly with RF power. If this linear scaling continues to hold at higher RF powers, it should permit current densities of 100 45 mA/cm{sup 2}, sufficient for present heavy ion fusion injector concepts. The effective ion temperatures of the positive and negative ions appeared to be similar and relatively low for a plasma source.

L.R. Grisham, S.K. Hahto, S.T. Hahto, J.W. Kwan, and K.N. Leung

2004-06-16T23:59:59.000Z

251

Energy for 500 Million Homes: Drivers and Outlook for Residential Energy Consumption in China  

SciTech Connect

China's rapid economic expansion has propelled it to the rank of the largest energy consuming nation in the world, with energy demand growth continuing at a pace commensurate with its economic growth. The urban population is expected to grow by 20 million every year, accompanied by construction of 2 billion square meters of buildings every year through 2020. Thus residential energy use is very likely to continue its very rapid growth. Understanding the underlying drivers of this growth helps to identify the key areas to analyze energy efficiency potential, appropriate policies to reduce energy use, as well as to understand future energy in the building sector. This paper provides a detailed, bottom-up analysis of residential building energy consumption in China using data from a wide variety of sources and a modelling effort that relies on a very detailed characterization of China's energy demand. It assesses the current energy situation with consideration of end use, intensity, and efficiency etc, and forecast the future outlook for the critical period extending to 2020, based on assumptions of likely patterns of economic activity, availability of energy services, technology improvement and energy intensities. From this analysis, we can conclude that Chinese residential energy consumption will more than double by 2020, from 6.6 EJ in 2000 to 15.9 EJ in 2020. This increase will be driven primarily by urbanization, in combination with increases in living standards. In the urban and higher income Chinese households of the future, most major appliances will be common, and heated and cooled areas will grow on average. These shifts will offset the relatively modest efficiency gains expected according to current government plans and policies already in place. Therefore, levelling and reduction of growth in residential energy demand in China will require a new set of more aggressive efficiency policies.

Zhou, Nan; McNeil, Michael A.; Levine, Mark

2009-06-01T23:59:59.000Z

252

Steamside Oxidation Behavior of Experimental 9%Cr Steels  

SciTech Connect

Reducing emissions and increasing economic competitiveness require more efficient steam power plants that utilize fossil fuels. One of the major challenges in designing these plants is the availability of materials that can stand the supercritical and ultra-supercritical steam conditions at a competitive cost. There are several programs around the world developing new ferritic and austenitic steels for superheater and reheater tubes exposed to the advanced steam conditions. The new steels must possess properties better than current steels in terms of creep strength, steamside oxidation resistance, fireside corrosion resistance, and thermal fatigue resistance. This paper introduces a series of experimental 9%Cr steels containing Cu, Co, and Ti. Stability of the phases in the new steels is discussed and compared to the phases in the commercially available materials. The steels were tested under both the dry and moist conditions at 650ºC for their cyclical oxidation resistance. Results of oxidation tests are presented. Under the moist conditions, the experimental steels exhibited significantly less mass gain compared to the commercial P91 steel. Microstructural characterization of the scale revealed different oxide compositions.

Dogan, O.N.; Holcomb, G.R.; Alman, D.E.; Jablonski, P.D.

2007-10-01T23:59:59.000Z

253

Remediation of Cr(VI) by biogenic magnetic nanoparticles: An x-ray magnetic circular dichroism study  

SciTech Connect

Biologically synthesized magnetite (Fe{sub 3}O{sub 4}) nanoparticles are studied using x-ray absorption and x-ray magnetic circular dichroism following exposure to hexavalent Cr solution. By examining their magnetic state, Cr cations are shown to exist in trivalent form on octahedral sites within the magnetite spinel surface. The possibility of reducing toxic Cr(VI) into a stable, non-toxic form, such as a Cr{sup 3+}-spinel layer, makes biogenic magnetite nanoparticles an attractive candidate for Cr remediation.

Telling, N. D.; Coker, V. S.; Cutting, R. S.; van der Laan, G.; Pearce, C. I.; Pattrick, R. A. D.; Arenholz, E.; Lloyd, J. R.

2009-09-04T23:59:59.000Z

254

Argonne TTRDC - D3 (Downloadable Dynamometer Database) - 2010 Honda CR-Z  

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

CR-Z Hybrid CR-Z Hybrid honda crz Front View - 2010 Honda CR-Z Hybrid The Honda CR-Z hybrid builds upon the Insight/Civic Honda hybrid systems with a sporty angle. The vehicle is marketed as a successor to the CRX 2-seat sport compact. It features a 1.5 L (83 kW) engine (larger than the 1.3 L used in the Insight and Civic HEVs) and is offered with both an automatic (push-belt CVT) and a manual transmission. The battery is similar to the Insight pack at 100.8 nominal voltage. The IMA motor is specified at 13 hp. Key Technology Mild hybrid "Honda IMA" hybrid system 1.5 L (83 kW) engine 100.8-Volt Nickel-Metal-Hydride (NiMH) Features 3 operational modes: "Econ," "Normal," and "Sport" Report Testing Summary (pdf) Data Download all data (zip)

255

CORROSION OF Fe-10Al-Cr ALLOYS BY COAL CHAR  

E-Print Network (OSTI)

Potent.ials Encountered in Coal Conversion Systems", NASA TNof Illinois #6 ash and coal char. Figure 1. Cross sectionsof Fe-lOAl-Cr Alloys by Coal Char B. A. Gordon and V.

Gordon, B.A.

2011-01-01T23:59:59.000Z

256

diff -crN oommf1.1b1/CHANGES oommf/CHANGES  

Science Conference Proceedings (OSTI)

diff -crN oommf1.1b1/CHANGES oommf/CHANGES. *** oommf1.1b1/ CHANGES Tue Oct 2 12:15:40 2001. --- oommf/CHANGES ...

257

diff -crN oommf-1.0b1/CHANGES oommf/CHANGES  

Science Conference Proceedings (OSTI)

diff -crN oommf-1.0b1/CHANGES oommf/CHANGES. *** oommf-1.0b1/ CHANGES Tue Jul 27 15:49:21 1999. --- oommf/CHANGES ...

258

Design and performance of the terawatt Cr:LiSrAlF[sub 6] laser system  

Science Conference Proceedings (OSTI)

The authors have developed a compact, flashlamp-pumped Cr:LiSrAlF[sub 6] laser system capable of producing peak powers in excess of one terawatt. The chirped pulse amplification approach has been optimized for amplification of femtosecond pulses in Cr:LiSrAlF[sub 6]. The system includes a Cr:LiSAF regenerative amplifier followed by a Cr:LiSAF power amplifier chain. The regenerative amplifier produces 12 mJ pulses at a 5 Hz repetition rate which are further amplified to energies above 300 mJ at a 0.5 Hz repetition rate. Recompression results in a pulse energy of 150 mJ and pulse duration of under 135 fsec.

Ditmire, T.; Nguyen, H.; Herman, S.; Perry, M.D.

1993-01-28T23:59:59.000Z

259

Design and performance of the terawatt Cr:LiSrAlF{sub 6} laser system  

Science Conference Proceedings (OSTI)

The authors have developed a compact, flashlamp-pumped Cr:LiSrAlF{sub 6} laser system capable of producing peak powers in excess of one terawatt. The chirped pulse amplification approach has been optimized for amplification of femtosecond pulses in Cr:LiSrAlF{sub 6}. The system includes a Cr:LiSAF regenerative amplifier followed by a Cr:LiSAF power amplifier chain. The regenerative amplifier produces 12 mJ pulses at a 5 Hz repetition rate which are further amplified to energies above 300 mJ at a 0.5 Hz repetition rate. Recompression results in a pulse energy of 150 mJ and pulse duration of under 135 fsec.

Ditmire, T.; Nguyen, H.; Herman, S.; Perry, M.D.

1993-01-28T23:59:59.000Z

260

Inconsistencies between Long-Term Trends in Storminess Derived from the 20CR Reanalysis and Observations  

Science Conference Proceedings (OSTI)

Global atmospheric reanalyses have become a common tool for both validation of climate models and diagnostic studies, such as assessing climate variability and long-term trends. Presently, the Twentieth Century Reanalysis (20CR), which assimilates ...

Oliver Krueger; Frederik Schenk; Frauke Feser; Ralf Weisse

2013-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "driver cr eek" 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

Audit Report: CR-B-02-01 | Department of Energy  

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

2-01 Audit Report: CR-B-02-01 October 15, 2001 Fixed-Price Contracting for Department of Energy Cleanup Activities As part of its Contract Reform effort, the Department of Energy...

262

The Thermodynamics of Titanium Formation in 95CrMo Steel  

Science Conference Proceedings (OSTI)

... on the fatigue life of 95CrMo steel which was applied in producing drilling rod. ... Analysis of Residence Time Distribution (RTD) of Fluid Flows in a Four Strand  ...

263

Impurity-Point Defect Interaction in Fe-Cr Alloys: Size Effects versus ...  

Science Conference Proceedings (OSTI)

May 1, 2007 ... Impurity-Point Defect Interaction in Fe-Cr Alloys: Size Effects versus Magnetic Behaviour by D. Nguyen-Manh, M.Y. Lavrentiev and S.L. ...

264

Clustering and Short-Range Orer in Fe-Cr Alloys: A Monte Carlo Study  

Science Conference Proceedings (OSTI)

May 1, 2007 ... Clustering and Short-Range Orer in Fe-Cr Alloys: A Monte Carlo Study by Mikhail Lavrentiev, Duc Nguyen-Manh, Sergei Dudarev, Ralf Drautz, ...

265

Molecular dynamics simulation of displacement cascades in FeCr alloys  

E-Print Network (OSTI)

Molecular dynamics simulation of displacement cascades in Fe­Cr alloys L. Malerba a,*, D. Terentyev by displacement cascades in the relevant material. Molecular dynamics (MD) is well known to be the simulation tool

266

A few-cycle Cr??:YAG laser and optical studies of photonic crystals  

E-Print Network (OSTI)

A prismless Cr4+:YAG laser was used to generate 20 fs pulses at 1450 nm with a bandwidth of 190 nm FWHM. Intracavity group velocity dispersion was compensated with double-chirped mirrors. Pulse spectrum was observable from ...

Ripin, Daniel Jacob, 1973-

2002-01-01T23:59:59.000Z

267

ISSUES REGARDING FEE STRUCTURE FOR THREE ENVIRONMENTAL MANAGEMENT CONTRACTS, CR-B-01-01  

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

CR-B-01-01 CR-B-01-01 AUDIT REPORT ISSUES REGARDING FEE STRUCTURE FOR THREE ENVIRONMENTAL MANAGEMENT CONTRACTS MAY 2001 U.S. DEPARTMENT OF ENERGY OFFICE OF INSPECTOR GENERAL OFFICE OF AUDIT SERVICES DEPARTMENT OF ENERGY Washington, DC 20585 May 9, 2001 MEMORANDUM FOR THE DIRECTOR, OFFICE OF MANAGEMENT AND ADMINISTRATION FROM: Phillip L. Holbrook (Signed) Deputy Inspector General for Audit Services Office of Inspector General SUBJECT: INFORMATION: Audit Report on "Issues Regarding Fee Structure for

268

Heat treatment of NiCrFe alloy to optimize resistance to intergrannular stress corrosion  

DOE Patents (OSTI)

A process of producing a NiCrFe alloy having a high resistance to stress corrosion cracking comprising heating a NiCrFe alloy to a temperature sufficient to enable the carbon present in the alloy body in the form of carbide deposits to enter into solution, rapidly cool the alloy body, and heat the cooled body to a temperature between 1100.degree. to 1500.degree. F. for about 1 to 30 hours.

Steeves, Arthur F. (Schenectady, NY); Bibb, Albert E. (Clifton Park, NY)

1984-01-01T23:59:59.000Z

269

Efficient cw lasing in a Cr{sup 2+}:CdSe crystal  

Science Conference Proceedings (OSTI)

Continuous wave lasing in a Cr{sup 2+}:CdSe crystal is obtained for the first time. The Cr{sup 2+}:CdSe crystal pumped by a 1.908-{mu}m thulium fibre laser generated 1.07 W at 2.623 {mu}m with the quantum slope efficiency with respect to the absorbed power equal to 60%. (letters)

Akimov, V A [Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow Region (Russian Federation); Kozlovskii, V I; Korostelin, Yu V; Landman, A I; Podmar'kov, Yu P; Skasyrsky, Ya K; Frolov, M P [P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2007-11-30T23:59:59.000Z

270

Optimizing Cr(VI) and Tc(VII) remediation through nano-scale biomineral engineering  

Science Conference Proceedings (OSTI)

To optimize the production of biomagnetite for the bioremediation of metal oxyanion contaminated waters, the reduction of aqueous Cr(VI) to Cr(III) by two biogenic magnetites and a synthetic magnetite was evaluated under batch and continuous flow conditions. Results indicate that nano-scale biogenic magnetite produced by incubating synthetic schwertmannite powder in cell suspensions of Geobacter sulfurreducens is more efficient at reducing Cr(VI) than either biogenic nano-magnetite produced from a suspension of ferrihydrite 'gel' or synthetic nano-scale Fe{sub 3}O{sub 4} powder. Although X-ray Photoelectron Spectroscopy (XPS) measurements obtained from post-exposure magnetite samples reveal that both Cr(III) and Cr(VI) are associated with nanoparticle surfaces, X-ray Magnetic Circular Dichroism (XMCD) studies indicate that some Cr(III) has replaced octahedrally coordinated Fe in the lattice of the magnetite. Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES) measurements of total aqueous Cr in the associated solution phase indicated that, although the majority of Cr(III) was incorporated within or adsorbed to the magnetite samples, a proportion ({approx}10-15 %) was released back into solution. Studies of Tc(VII) uptake by magnetites produced via the different synthesis routes also revealed significant differences between them as regards effectiveness for remediation. In addition, column studies using a {gamma}-camera to obtain real time images of a {sup 99m}Tc(VII) radiotracer were performed to visualize directly the relative performances of the magnetite sorbents against ultra-trace concentrations of metal oxyanion contaminants. Again, the magnetite produced from schwertmannite proved capable of retaining more ({approx}20%) {sup 99m}Tc(VII) than the magnetite produced from ferrihydrite, confirming that biomagnetite production for efficient environmental remediation can be fine-tuned through careful selection of the initial Fe(III) mineral substrate supplied to Fe(III)-reducing bacteria.

Cutting, R. S.; Coker, V. S.; Telling, N. D.; Kimber, R. L.; Pearce, C. I.; Ellis, B.; Lawson, R; van der Laan, G.; Pattrick, R.A.D.; Vaughan, D.J.; Arenholz, E.; Lloyd, J. R.

2009-09-09T23:59:59.000Z

271

Oxidation behavior of arc evaporated Al-Cr-Si-N thin films  

SciTech Connect

The impact of Al and Si on the oxidation behavior of Al-Cr-(Si)-N thin films synthesized by arc evaporation of powder metallurgically prepared Al{sub x}Cr{sub 1-x} targets with x = Al/(Al + Cr) of 0.5, 0.6, and 0.7 and (Al{sub 0.5}Cr{sub 0.5}){sub 1-z}Si{sub z} targets with Si contents of z = 0.05, 0.1, and 0.2 in N{sub 2} atmosphere was studied in detail by means of differential scanning calorimetry, thermogravimetric analysis (TGA), x-ray diffraction, and Raman spectroscopy. Dynamical measurements in synthetic air (up to 1440 Degree-Sign C) revealed the highest onset temperature of pronounced oxidation for nitride coatings prepared from the Al{sub 0.4}Cr{sub 0.4}Si{sub 0.2} target. Isothermal TGA at 1100, 1200, 1250, and 1300 Degree-Sign C highlight the pronounced improvement of the oxidation resistance of Al{sub x}Cr{sub 1-x}N coatings by the addition of Si. The results show that Si promotes the formation of a dense coating morphology as well as a dense oxide scale when exposed to air.

Tritremmel, Christian; Daniel, Rostislav; Mitterer, Christian; Mayrhofer, Paul H.; Lechthaler, Markus; Polcik, Peter [Christian Doppler Laboratory for Advanced Hard Coatings, Department of Physical Metallurgy and Materials Testing, Montanuniversitaet Leoben, Franz-Josef-Strasse 18, A-8700 Leoben (Austria); Christian Doppler Laboratory for Application Oriented Coating Development, Department of Physical Metallurgy and Materials Testing, Montanuniversitaet Leoben, Franz-Josef-Strasse 18, A-8700 Leoben (Austria); OC Oerlikon Balzers AG, Iramali 18, LI-9496 Balzers (Liechtenstein); PLANSEE Composite Materials GmbH, Siebenbuergerstrasse 23, D-86983 Lechbruck am See (Germany)

2012-11-15T23:59:59.000Z

272

Processing of LaCrO{sub 3} for solid oxide fuel cell applications  

DOE Green Energy (OSTI)

The University of Missouri-Rolla is performing a 5 year research program dedicated towards the development of LaCrO{sub 3}-based interconnect powders which densify when in contact with anode and cathode materials for solid oxide fuel cells (SOFC). During the course of this program the authors investigated compositions within the pseudo-ternary LaCrO{sub 3}-LaMnO{sub 3}-LaCoO{sub 3} system. Their expanded studies on the processing and sintering of LaCrO{sub 3} to make dense interconnects using LaCrO{sub 3}-based oxides at temperatures less than 1,500 C in an air atmosphere and in contact with both anode and cathode oxides. The specific objectives of this research program are to: Develop a novel technique which reproducibly yields LaCrO{sub 3}-based powders with the desired particle characteristics; Fully understand the liquid phase sintering mechanism; Clearly identify the reason why LaCrO{sub 3} does not densify in the presence of electrolyte and cathode materials; Systematically solve this problem through judicious control over the liquid phase; and Incorporate materials developed in this program into planar cells and measure their performance. Results are discussed on porosity and skrinkage, and sintering and melting behaviors.

Huebner, W.; Anderson, H.U.

1994-09-01T23:59:59.000Z

273

Leaching Behavior of Cr(III) in Stabilized/Solidified Soil  

Science Conference Proceedings (OSTI)

The leaching behavior of chromium was studied using batch leaching tests, surface complexation modeling and X-ray absorption near edge structure (XANES) spectroscopy. A contaminated soil sample containing 1330 mg-Cr kg{sup -1} and 25 600 mg-Fe kg{sup -1} of dry soil was stabilized/solidified (S/S) with 10% cement, 25% cement, 10% lime and a mixture of 20% flyash and 5% lime. The XANES analysis showed that Cr(III) was the only Cr species in untreated soil and S/S-treated samples. The leachate Cr concentration determined using the toxicity characteristic leaching procedure (TCLP) was reduced from 5.18 mg l{sup -1} for untreated soil to 0.84 mg l{sup -1} for the sample treated with 25% cement. The Cr leachability in untreated and treated soil samples decreased dramatically as the pH increased from 3 to 5, remained at similar levels in the pH range between 5 and 10.5, and further decreased at pH > 10.5. Modeling results indicated that the release of Cr(III) was controlled by adsorption on iron oxides at pH 10.5.

Jing,C.; Liu, S.; Korfiatis, G.; Meng, X.

2006-01-01T23:59:59.000Z

274

High-temperature dynamic hohlraums on the pulsed power driver {ital Z}  

Science Conference Proceedings (OSTI)

In the concept of the dynamic hohlraum an imploding Z pinch is optically thick to its own radiation. Radiation may be trapped inside the pinch to give a radiation temperature inside the pinch greater than that outside the pinch. The radiation is typically produced by colliding an outer Z-pinch liner onto an inner liner. The collision generates a strongly radiating shock, and the radiation is trapped by the outer liner. As the implosion continues after the collision, the radiation temperature may continue to increase due to ongoing PdV (pressure times change in volume) work done by the implosion. In principal, the radiation temperature may increase to the point at which the outer liner burns through, becomes optically thin, and no longer traps the radiation. One application of the dynamic hohlraum is to drive an ICF (inertial confinement fusion) pellet with the trapped radiation field. Members of the dynamic hohlraum team at Sandia National Labs have used the pulsed power driver {ital Z} (20 MA, 100 ns) to create a dynamic hohlraum with temperature linearly ramping from 100 to 180 eV over 5 ns. On this shot zp214 a nested tungsten wire array of 4 and 2 cm diam with masses of 2 and 1 mg imploded onto a 2.5 mg plastic annulus at 5 mm diam. The current return can on this shot was slotted. It is likely the radiation temperature may be increased to over 200 eV by stabilizing the pinch with a solid current return can. A current return can with nine slots imprints nine filaments onto the imploding pinch. This degrades the optical trapping and the quality of the liner collision. A 1.6 mm diam capsule situated inside this dynamic hohlraum of zp214 would see 15 kJ of radiation impinging on its surface before the pinch itself collapses to a 1.6 mm diam. Dynamic hohlraum shots including pellets were scheduled to take place on {ital Z} in September of 1998. {copyright} {ital 1999 American Institute of Physics.}

Nash, T.J.; Derzon, M.S.; Chandler, G.A.; Leeper, R.; Fehl, D.; Lash, J.; Ruiz, C.; Cooper, G.; Seaman, J.F.; McGurn, J.; Lazier, S.; Torres, J.; Jobe, D.; Gilliland, T.; Hurst, M.; Mock, R.; Ryan, P.; Nielsen, D.; Armijo, J.; McKenney, J.; Hawn, R.; Hebron, D. [Sandia National Laboratory, Albuquerque, New Mexico 87123 (United States)] [Sandia National Laboratory, Albuquerque, New Mexico 87123 (United States); MacFarlane, J.J. [University of Wisconsin, Madison, Wisconsin 53705 (United States)] [University of Wisconsin, Madison, Wisconsin 53705 (United States); Petersen, D.; Bowers, R.; Matuska, W. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Ryutov, D.D. [Lawrence Livermore Laboratory, Livermore, California 94550 (United States)] [Lawrence Livermore Laboratory, Livermore, California 94550 (United States)

1999-05-01T23:59:59.000Z

275

Pontotoc Co. Greene Co. Hale Co. OAK GROVE C OAL D EGAS CEDAR COVE  

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

COAL D EGAS BLU E CREEK COAL DEGAS BR OOKWOOD C OAL D EGAS ST AR ROBIN SONS BEND COAL D EGAS BLU FF COR INNE MOU NDVILLE COAL D EGAS BLU EGU T CR EEK WH ITE OAK CREEK COAL DEGAS BEAVERT ON BLU FF FAYETTE W SN EAD S CREEK SPLU NGE PAR HAM N MUSGR OVE CR EEK MCCRAC KEN MOU NTAIN DAVIS C HAPEL BAC ON BLOOMING GROVE MT Z ION FAIRVIEW JASPER BLOWHORN CREEK MAPLE BRAN CH KEN NEDY COAL F IRE CR EEK MCGEE LAKE SILOAM MILLPOR T FERNBANK DAVIS C HAPEL NE DETROIT E BEANS F ERRY LEXIN GT ON PET ERSON COAL D EGAS CALEDONIA ABERD EEN HOL T COAL D EGAS MULDON ELD RIDGE MCKINLEY CREEK TREBLOC HEARTLIN E SH ANNON TROY_MS_D BOXES CREEK WISE GAP NOR THSID E TREMONT VAN VLEET HOL LY BET HEL CHU RCH ABERD EEN S ST RONG BAN KST ON MOLLOY WR EN COR INTH WELLS THORN REID REID HOU STON ST AR DEERLICK CREEK COAL D EGAS OAK GROVE COAL D EGAS BIG SANDY CREEK COAL D EGAS MABEN LITT LE SAND Y CREEK COAL D

276

A First-principles Study onA First-principles Study on Fe Substituted CrFe Substituted Cr2323CC66  

E-Print Network (OSTI)

halpy of FeCr22C6. #12;Creep Resistant Steel Steam Power Plant Efficiency ~42 % Goal Efficiency 45 common power plant steels (MTDAT A, SGTE database, 565 °C) [Bhadeshia, 2001] M23C6 in Power Plant Steels by the all-electron full potential linearized a ugmented plane-wave method (FLAPW) within the generalized g

Cambridge, University of

277

r XXXX American Chemical Society A dx.doi.org/10.1021/cr100290v |Chem. Rev. XXXX, XXX, 000000 pubs.acs.org/CR  

E-Print Network (OSTI)

%), hydro (15%), and the remaining 3% from renewable energy technologies. Even with aggressive conservation energy, such as pumped hydro and possibly compressed air energy storage (CAES), can be an attractive­000 REVIEW pubs.acs.org/CR Electrochemical Energy Storage for Green Grid Zhenguo Yang,* Jianlu Zhang, Michael

278

Photochemistry of Methyl Bromide on the ?-Cr2O3(0001) Surface  

Science Conference Proceedings (OSTI)

The photochemical properties of the Cr-terminated ?-Cr2O3(0001) surface were explored using methyl bromide (CH3Br) as a probe molecule. CH3Br adsorbed and desorbed molecularly from the Cr-terminated ?-Cr2O3(0001) surface without detectable thermal decomposition. Temperature programmed desorption (TPD) revealed a CH3Br desorption state at 240 K for coverages up to 0.5 ML, followed by more weakly bound molecules desorbing at 175 K for coverages up to 1 ML. Multilayer exposures led to desorption at ~130 K. The CH3Br sticking coefficient was unity at 105 K for coverages up to monolayer saturation, but decreased as the multilayer formed. In contrast, pre-oxidation of the surface (using an oxygen plasma source) led to capping of surface Cr3+ sites and near complete removal of CH3Br TPD states above 150 K. The photochemistry of chemisorbed CH3Br was explored on the Cr-terminated surface using post-irradiation TPD and photon stimulated desorption (PSD). Irradiation of adsorbed CH3Br with broad band light from a Hg arc lamp resulted in both photodesorption and photodecomposition of the parent molecule at a combined cross section of ~10-22 cm2. Parent PSD was indicative of molecular photodesorption, but CH3 was also detected in PSD and Br atoms were left on the surface, both reflective of photo-induced CH3-Br bond dissociation. Use of a 385 nm cut-off filter effectively shut down the photodissociation pathway but not the parent molecule photodesorption process. From these observations it is inferred that d-to-d transitions in ?-Cr2O3, occurring at photon energies <3 eV, are not responsible for photodecomposition of 2 adsorbed CH3Br. It is unclear to what extent band-to-band versus direct CH3Br photolysis play in CH3-Br bond dissociation initiated by more energetic photons.

Henderson, Michael A.

2010-09-30T23:59:59.000Z

279

Break-Even Cost for Residential Solar Water Heating in the United States: Key Drivers and Sensitivities  

SciTech Connect

This paper examines the break-even cost for residential rooftop solar water heating (SWH) technology, defined as the point where the cost of the energy saved with a SWH system equals the cost of a conventional heating fuel purchased from the grid (either electricity or natural gas). We examine the break-even cost for the largest 1,000 electric and natural gas utilities serving residential customers in the United States as of 2008. Currently, the break-even cost of SWH in the United States varies by more than a factor of five for both electricity and natural gas, despite a much smaller variation in the amount of energy saved by the systems (a factor of approximately one and a half). The break-even price for natural gas is lower than that for electricity due to a lower fuel cost. We also consider the relationship between SWH price and solar fraction and examine the key drivers behind break-even costs. Overall, the key drivers of the break-even cost of SWH are a combination of fuel price, local incentives, and technical factors including the solar resource location, system size, and hot water draw.

Cassard, H.; Denholm, P.; Ong, S.

2011-02-01T23:59:59.000Z

280

Integrated Investigation on the Production and Fate of Organo-Cr(III) Complexes from Microbial Reduction of Chromate  

DOE Green Energy (OSTI)

Our objective is to investigate the complexity of chromium biogeocycling. Our results clearly support more complexity. In short, the chromium cycle is not as simple as the conversion between Cr(III) and Cr(VI) in inorganic forms. We have obtained more evidence to prove the formation of soluble organo-Cr(III) complexes from microbial reduction of Cr(VI). The complexes are relatively stable due to the slow ligand exchange of Cr(III). However, some microorganisms can consume the organic ligands and release Cr(III), which then precipitates. Efforts are being made to characterize the organo-Cr(III) complexes and investigate their behavior in soil. Progress and efforts are summarized for each task. Task 1. Production of soluble organo-Cr(III) complexes by selected microorganisms A total of eight organisms were screened for production of soluble organo-Cr(III) complexes by culturing in both growth and non growth media containing 4 mg/L of Cr(VI); three were Gram positive and five were Gram negative. The Gram-positive bacteria were Cellulomonas sp. ES 6, Rhodococcus sp., and Leafsonia sp., while Shewanella oneidensis MR 1, Desulfovibrio desulfuricans G20, D. vulgaris Hildenborough, Pseudomonas putida MK 1 and Ps. aeruginosa PAO 1 were Gram negative. Purifications of the soluble organo-Cr(III) complexes produced by Cellulomonas sp. ES 6, Shewanella. oneidensis MR 1, Rhodococcus sp., and D. vulgaris Hildenborough were carried out. The culture supernatants were lyophilized and extracted first with methanol followed by water. The extracts were then analyzed for soluble Cr. The majority of the Cr(III) was present in the water-soluble fraction for all of the bacteria tested (data not shown), revealing a general phenomenon of soluble Cr(III) production. Cellulomonas sp. ES6 produced the highest amount of soluble Cr(III) (364 ppm) and D. vulgaris Hildenborough produced the least (143 ppm). Seventy eight percent of the soluble Cr(III) produced by Shewanella. oneidensis MR 1 was water soluble, while 45% was water soluble for the Cellulomonas sp. ES6. The water-soluble fractions were further purified by anion exchange chromatography. All soluble Cr(III) was bound to the anion exchange column. The bound organo-Cr(III) was eluted by gradient elution, (0.25M-2M) using ammonium acetate. Preliminary characterization confirmed the nature of organo-Cr(III) complexes. Further characterization of these species by electrospray ionization mass spectrometry (ESI-MS) is in progress. Task 2. Demonstrate that chromate reduction produces organo-Cr(III) complexes with microbial cellular components. In the past year, further research on the formation of organo-Cr(III) complexes has been completed. Formation of soluble complexes with cell free extracts as the organic portion has resulted in the formation of organo-Cr(III) complexes, approximately 27% Cr(III) remained soluble after 14 days. In addition, complexes formed between individual organic components and Cr(III) have been tested for changes in solubility due to changes in pH.

Xun, Luying

2005-06-01T23:59:59.000Z

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281

Synthesis of Room-Temperature Ferromagnetic Cr-doped TiO?(110) Rutile Single Crystals using Ion Implantation  

SciTech Connect

Ferromagnetic Cr-doped rutile TiO? single crystals were synthesized by high-temperature ion implantation. The associated structural, compositional and magnetic properties were studied by x-ray photoelectron spectroscopy, Rutherford backscattering spectrometry, proton induced x-ray emission, x-ray diffraction, Cr K- and L-shell near-edge x-ray absorption spectroscopy, and vibrating sample magnetometry. Cr was distributed uniformly to the depth of about 300 nm with an average concentration of ~1 at. %. The samples are semiconducting and ferromagnetic as implanted, with a saturation magnetization of 0.29???B/Cr atom at room temperature. Cr is in a formal oxidation state of +3 throughout the implanted region, and no CrO? is detected.

Shutthanandan, V.; Thevuthasan, Suntharampillai; Droubay, Timothy; Heald, Steve M.; Engelhard, Mark H.; McCready, David E.; Chambers, Scott A.; Nachimuthu, Ponnusamy; Mun, B. S.

2006-01-01T23:59:59.000Z

282

Detection of charge transfer processes in Cr-doped SrTiO{sub 3} single crystals  

SciTech Connect

An insulator-to-metal transition is observed in Cr-doped SrTiO{sub 3} single crystals upon extended exposure to a high electric field, namely, electroconditioning (EC). Electron paramagnetic resonance (EPR) and transport measurements under laser irradiation show anticorrelation between the Cr{sup 3+} EPR signal and the electrical current. This proves that the Cr{sup 3+} ions are responsible for the photocurrent that initiates the EC process. We observe the presence of Cr{sup 3+}/Cr{sup 4+} mixed valencies in the bulk in the conducting state. The EPR characterization of the spectra in the conducting state excludes the possibility of a Cr{sup 3+}-oxygen vacancy complex in the bulk as a result of the EC.

La Mattina, F. [Physik-Institut der Universitaet Zuerich, Winterthurerstr. 190, CH-8057 Zuerich (Switzerland); IBM Research, Zurich Research Laboratory, Saeumerstr. 4, CH-8803 Rueschlikon (Switzerland); Bednorz, J. G.; Alvarado, S. F. [IBM Research, Zurich Research Laboratory, Saeumerstr. 4, CH-8803 Rueschlikon (Switzerland); Shengelaya, A. [Physics Institute of Tbilisi State University, Chavchavadze 3, GE-0128, Tbilisi (Georgia); Keller, H. [Physik-Institut der Universitaet Zuerich, Winterthurerstr. 190, CH-8057 Zuerich (Switzerland)

2008-07-14T23:59:59.000Z

283

Recovery of Cr(III) from tannery spent chrome liquor for reuse  

Science Conference Proceedings (OSTI)

This paper embodies details on the extraction behavior of Cr(III) along with Al(III), Fe(III), Mg(II), Mn(II), Co(II), Ni(II), and Cu(II) from hydrochloric acid media employing the Cyanex 301-toluene system. All of these metals, except Cr(III), Mg(II), and Mn(II), are extracted into the organic phase. This property of the extractant has been used to separate Cr(III) from the binary mixtures. The partition data have been extended onto spent chrome liquor, and this waste has been treated in such a manner so that it becomes suitable for use in trivalent plating baths. The hydrolytic stability and recycling capacity has been reported. Because the concentration of Cr(III) in the waste is much lower than that required for chromium depositions in Cr(III) plating baths, a concentration step using MgO as a precipitating agent has been appended. To summarize, this paper envisages a new approach to tannery waste management that focuses on treating spent chrome liquors using a solvent extraction technique in such a manner that the waste becomes suitable for use in trivalent plating baths. This would not only help abate pollution but also recover the metal in a pure form.

Khwaja, A.R.; Singh, R.; Tandon, S.N.

2000-04-01T23:59:59.000Z

284

Phase decomposition in an Fe-40 at.% Cr alloy after isothermal aging and its effect on hardening  

SciTech Connect

The phase decomposition process of an Fe-40 at.% Cr alloy was studied after isothermal aging at 475 and 500 deg. C using a high-resolution transmission electron microscope, as well as hardness measurements. High-resolution transmission electron microscope observations showed that the hardening behavior is associated with the formation of the nanometric coherent decomposed Cr-rich and Fe-rich phases with irregular shape and interconnected as expected for a spinodally-decomposed alloy. As the aging progressed, coherent rounded Cr-rich phase precipitates were observed in the Fe-rich phase matrix. The coarsening process of the Cr-rich phase was observed for aging times up to 750 h. Nevertheless, no decrease in hardness with time was observed because of the nanometric size of the Cr-rich phase, less than 10 nm. Aging hardening was higher at 500 deg. C because of the higher decomposition kinetics. - Research Highlights: {yields} Spinodally-decomposed phases showed an interconnected and irregular shape in aged Fe-Cr alloy. {yields} Further aging promoted the formation of nanometric coherent rounded Cr-rich precipitates. {yields} Nanometric Cr-rich phases are responsible for the age hardening. {yields} Coarsening process of these nanometric Cr-rich precipitates caused no decrease in hardness.

Lopez-Hirata, Victor M., E-mail: vlopezhi@prodigy.net.mx; Soriano-Vargas, Orlando; Rosales-Dorantes, Hector J.; Saucedo Munoz, Maribel L.

2011-08-15T23:59:59.000Z

285

Audit Report: CR-B-02-01 | Department of Energy  

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

CR-B-02-01 CR-B-02-01 Audit Report: CR-B-02-01 October 15, 2001 Fixed-Price Contracting for Department of Energy Cleanup Activities As part of its Contract Reform effort, the Department of Energy (Department) acted to increase its use of fixed-price contracts. This shift was designed to increase the cost-effectiveness of operations. Since October 1994, the Office of Environmental Management (EM) has awarded a number of fixed-price contracts for environmental cleanup activities. In so doing, EM expected significant cost savings when compared to approaches previously employed by management and operating contractors. Accurately estimating those savings is crucial to contracting strategy and project funding decisions, as well as the Department's overall environmental cleanup strategy. The objective of our audit was to determine if the cost

286

Diode-pumped Cr:LiSAF all-solid-state femtosecond oscillator and regenerative amplifier  

Science Conference Proceedings (OSTI)

An all-solid-state tunable diode-pumped Cr{sup 3+}:LiSrAlF{sub 6} (Cr:LiSAF) regenerative amplifier, seeded by a tunable diode-pumped Cr:LiSAF femtosecond oscillator, has been demonstrated for the first time to our knowledge. The oscillator was tunable over 75 nm and generated pulses as short as 24 fs. As much as 70 mW average output power was obtained with pulses of 40-fs duration. The amplifier produced recompressed pulses of less than 200-fs duration with energies exceeding 1{mu}J at a repetition rate as high as 25 kHz. {copyright} {ital 1995} {ital Optical} {ital Society} {ital of} {ital America}.

Mellish, R.; Barry, N.P.; Hyde, S.C.W.; Jones, R.; French, P.M.W.; Taylor, J.R. [Femtosecond Optics Group, Department of Physics, Imperial College of Science and Technology, Prince Consort Road, London SW7 2BZ (United Kingdom); van der Poel, C.J.; Valster, A. [Philips Optoelectronics Centre, Prof. Holstlaan 4, 5656 AA Eindhoven (Netherlands)

1995-11-15T23:59:59.000Z

287

Itinerant antiferromagnetism in BaCr2As2: Experimental characterization and electronic structure calculations  

SciTech Connect

We report single crystal synthesis, specific heat and resistivity measurements and electronic structure calculations for BaCr2As2. This material is a metal with itinerant antiferromagnetism, similar to the parent phases of Fe-based high temperature superconductors, but differs in magnetic order. Comparison of bare band structure density of states and the low temperature specific heat implies a mass renormalization of 2. BaCr2As2 shows stronger transition metal - pnictogen covalency than the Fe compounds, and in this respect is more similar to BaMn2As2. This provides an explanation for the observation that Ni and Co doping is effective in the Fe-based superconductors, but Cr or Mn doping is not.

Singh, David J [ORNL; Safa-Sefat, Athena [ORNL; McGuire, Michael A [ORNL; Sales, Brian C [ORNL; Mandrus, David [ORNL; VanBebber, L. H. [University of Tennessee, Knoxville (UTK); Keppens, Veerle [University of Tennessee, Knoxville (UTK)

2009-01-01T23:59:59.000Z

288

Audit Report: CR-B-99-02 | Department of Energy  

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

Report: CR-B-99-02 Report: CR-B-99-02 Audit Report: CR-B-99-02 September 30, 1999 Management of Unneeded Materials and Chemicals For more than 50 years, the U.S. Department of Energy (Department) and its contractors operated large production facilities and laboratories that acquired and produced directly or as by-products enormous amounts of non-nuclear materials such as sodium, lead, chemicals, and scrap metal. However, a mission change resulting from the end of the Cold War called into question the need for continued stockpiling of these materials. In the past, the Department has conducted reviews that have identified inefficiencies and recommended improvements to the materials management function. The objective of this audit was to determine if the Department efficiently disposed of its unneeded materials.

289

Magnetic and electrical properties of layered magnets Tl(Cr,Mn,Co)Se{sub 2}  

Science Conference Proceedings (OSTI)

Tl(Cr,Mn,Co)Se{sub 2} crystals were synthesized at T {approx} 1050 K. X-ray diffraction analysis showed that TlCrSe{sub 2}, TlMnSe{sub 2}, and TlCoSe{sub 2} compounds crystallize in the hexagonal crystal system with the lattice parameters: a = 3.6999 A, c = 22.6901 A, c/a {approx} 6.133, z = 3, {rho}{sub x} = 6.209 g/cm{sup 3}; a = 6.53 A, c = 23.96 A, c/a {approx} 3.669, z = 8, {rho}{sub x} = 6.71 g/cm{sup 3}; and a = 3.747 A, c = 22.772 A, c/a {approx} 6.077, z = 3, {rho}{sub x} = 7.577 g/cm{sup 3}, respectively. Magnetic and electrical studies in the temperature range from 80-400 K showed that TlCrSe{sub 2} is a semiconductor ferromagnet, TlMnSe{sub 2} is a semiconductor antiferromagnet, and TlCoSe{sub 2} is a ferrimagnet with a conductivity characteristic of metals. A rather large deviation in the experimental effective magnetic moment for TlCrSe{sub 2} (3.05 {mu}B) from the theoretical value (3.85 {mu}B) is attributed to two-dimensional magnetic ordering in the paramagnetic region of the noticeably layered ferromagnet TlCrSe{sub 2}. In TlCrSe{sub 2}, a correlation between magnetic and electrical properties was detected.

Veliyev, R. G.; Sadikhov, R. Z.; Kerimova, E. M., E-mail: ekerimova@physics.ab.az; Asadov, Yu. G.; Jabbarov, A. I. [National Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan)

2009-02-15T23:59:59.000Z

290

Processing of LaCrO{sub 3} for solid oxide fuel cell applications  

DOE Green Energy (OSTI)

The University of Missouri-Rolla is performing a 5 year research program with two primary objectives: (1) developing LaCrO{sub 3}-based interconnect powders which densify when in contact with anode and cathode materials for solid oxide fuel cells (SOFC), and (2) developing high performance cathodes, anodes and interfaces for use in planar SOFC`s. With regard to the processing and sintering of LaCrO{sub 3}, the specific objectives of this research program are to: (1) develop a non-liquid phase sintered LaCrO{sub 3}-based material sinterable in air; (2) improve and control the properties requisite of LaCrO{sub 3} utilizing a B-site acceptor dopant; (3) optimize and control the processing conditions associated with LaCrO{sub 3}; and (4) incorporate materials developed in this program into planar cells and measure their performance. With regard to developing high performance materials for use in planar SOFC`s, the specific objectives of this research program over the last year have been to: (1) fabricate single cells with controlled microstructures for operation at 1,000 C; (2) gain a better understanding of the mechanisms involved in improving cell performance via electrochemical and impedance techniques; and (3) developing processing {leftrightarrow} microstructure {leftrightarrow} property relations of electrodes and their corresponding interfacial reactions. This report is divided into two primary sections: (1) LaCrO{sub 3} sintering studies and (2) SOFC performance studies. Results from these studies are presented in the following sections.

Huebner, W.; Anderson, H.U.

1995-12-31T23:59:59.000Z

291

Microstructure and High Temperature Oxidation Behavior of Cr-W Alloys  

Science Conference Proceedings (OSTI)

Cr alloys containing 0-30%W by weight were investigated for use in elevated temperature applications. The alloys were melted in a water-cooled, copper-hearth arc furnace. Microstructure of the alloys was characterized using x-ray diffraction, scanning electron microscopy, and light microscopy. A pseudocyclic oxidation test was employed to study scale formation at 1000ºC in dry air. The scale was predominantly chromia and spalled upon cooling. Alloying with aluminum up to 8 weight percent reduced the spalling drastically. Furthermore, aluminizing the surface of the Cr-W alloys completely stopped the spalling.

Dogan, O.N.

2007-02-01T23:59:59.000Z

292

Oxygen-17 NMR Shifts Caused by Cr{Sup ++} in Aqueous Solutions  

DOE R&D Accomplishments (OSTI)

Cr{sup ++} in solution produces a paramagnetic shift in the NMR absorption of O{sup 17} in ClO{sub 4}{sup -}, as well as the expected paramagnetic shift for O{sup 17} in H{sub 2}O. As the concentration of ClO{sub 4}{sup -} increases, the shift in the H{sub 2}O{sup 17} absorption is diminished, and eventually changes sign. The effects are ascribed to preferential replacement by ClO{sub 4}{sup -} of water molecules from the axial positions in the first coordination sphere about Cr{sup ++}.

Jackson, J. A.; Lemons, J. F.; Taube, H.

1962-00-00T23:59:59.000Z

293

Substitution of modified 9 Cr-1 Mo steel for austentic stainless steels  

SciTech Connect

This report describes the current program to develop a high-strength ferritic-martensitic steel. The alloy is essentially Fe-9% Cr-1% Mo with small additions of V and Nb and is known as modifed 9 Cr-1 Mo steel. Its elevated-temperature properties and design allowable stresses match those of type 304 stainless steel for temperatures up to 600/sup 0/C and exceed those of other ferritic steels by factors of 2 to 3. The improved strength of this alloy permits its use in place of stainless steels for many applications.

Sikka, V. K.

1982-04-01T23:59:59.000Z

294

Low-energy structure of 61Mn populated following $\\beta$ decay of 61Cr  

E-Print Network (OSTI)

$\\beta$ decay of the $^{61}$Cr$_{37}$ ground state has been studied. A new half-life of 233 +/- 11 ms has been deduced, and seven delayed $\\gamma$ rays have been assigned to the daughter, $^{61}$Mn$_{36}$. The low-energy level structure of $^{61}$Mn$_{36}$ is similar to that of the less neutron-rich $^{57,59}$Mn nuclei. The odd-A $_{25}$Mn isotopes follow the systematic trend in the yrast states of the even-even, Z + 1 $_{26}$Fe isotopes, and not that of the Z - 1 $_{24}$Cr isotopes, where a possible onset of collectivity has been suggested to occur already at N = 36.

Crawford, H L; Berryman, J S; Broda, R; Fornal, B; Hoffman, C R; Hoteling, N; Janssens, R V F; Lenzi, S M; Pereira, J; Stoker, J B; Tabor, S L; Walters, W B; Wang, X; Zhu, S

2009-01-01T23:59:59.000Z

295

Low-energy structure of 61Mn populated following $?$ decay of 61Cr  

E-Print Network (OSTI)

$\\beta$ decay of the $^{61}$Cr$_{37}$ ground state has been studied. A new half-life of 233 +/- 11 ms has been deduced, and seven delayed $\\gamma$ rays have been assigned to the daughter, $^{61}$Mn$_{36}$. The low-energy level structure of $^{61}$Mn$_{36}$ is similar to that of the less neutron-rich $^{57,59}$Mn nuclei. The odd-A $_{25}$Mn isotopes follow the systematic trend in the yrast states of the even-even, Z + 1 $_{26}$Fe isotopes, and not that of the Z - 1 $_{24}$Cr isotopes, where a possible onset of collectivity has been suggested to occur already at N = 36.

H. L. Crawford; P. F. Mantica; J. S. Berryman; R. Broda; B. Fornal; C. R. Hoffman; N. Hoteling; R. V. F. Janssens; S. M. Lenzi; J. Pereira; J. B. Stoker; S. L. Tabor; W. B. Walters; X. Wang; S. Zhu

2009-04-29T23:59:59.000Z

296

Comparison of SEM and Optical Analysis of DT Neutron Tracks in CR-39 Detectors  

Science Conference Proceedings (OSTI)

CR-39 detectors were exposed to DT neutrons generated by a Thermo Fisher model A290 neutron generator. Afterwards, the etched tracks were examined both optically and by SEM. The purpose of the analysis was to compare the two techniques and to determine whether additional information on track geometry could be obtained by SEM analysis. The use of these techniques to examine triple tracks, diagnostic of ?9.6 MeV neutrons, observed in CR-39 used in Pd/D codeposition experiments will also be discussed.

Mosier-Boss, P A; Carbonelle, P; Morey, M S; Tinsley, J R; Hurley, J P

2012-01-01T23:59:59.000Z

297

Aluminum and tungsten X-pinch experiments on 100 kA, 100 ns linear transformer driver stage  

Science Conference Proceedings (OSTI)

X-pinch experiments have been carried out on a 100 kA, 100 ns linear transformer driver stage recently built up. The X-pinches exhibited a source size of about 10 {mu}m, a pulse duration of 3 ns, 3-5 keV radiation energy of 3.9 mJ, and a burst time jitter of tens of nanosecond with the 2-wire 8 {mu}m W X-pinch load. The generator output current and the X-pinch characteristics depended on the X-pinch wire materials in the tests. X-ray backlighting images from the insects showed the significant phase-contrast effect.

Wu Jian [Department of Engineering Physics, Tsinghua University, Beijing 10086 (China); Northwest Institute of Nuclear Technology, Xi'an 710024 (China); Sun Tieping; Wu Gang; Wang Liangping; Han Juanjuan; Li Mo; Cong Peitian; Qiu Aici [Northwest Institute of Nuclear Technology, Xi'an 710024 (China); Lv Min [Department of Engineering Physics, Tsinghua University, Beijing 10086 (China)

2011-05-15T23:59:59.000Z

298

Authorization and Driving History Form The following information will be retained on file by all agencies on their drivers authorized to operate a  

E-Print Network (OSTI)

agencies on their drivers authorized to operate a State vehicle, or a private vehicle for state purposes ******************************************************************************************** AGENCY HEAD OR DESIGNEE STATEMENT I have reviewed this individual's genuine need to drive a State Vehicle of Birth ______________________________________ Issuing State _________ Class License _______ Phone Number

Harms, Kyle E.

299

IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. , NO. , 2012 1 Dynamic Driver Supply Voltage Scaling for Organic  

E-Print Network (OSTI)

Dynamic Driver Supply Voltage Scaling for Organic Light Emitting Diode Displays Donghwa Shin, Student, Fellow, IEEE Abstract--Organic light emitting diode (OLED) display is a self-illuminating device]. On the other hand, an organic light emitting diode (OLED) is self-illuminating using organic light emission

Pedram, Massoud

300

Dual and Triple Ion-Beam Irradiations of Fe, Fe(Cr) and Fe(Cr)-ODS Final Report: IAEA SMoRE CRP  

DOE Green Energy (OSTI)

Structures of nanoparticles in Fe-16Cr-4.5Al-0.3Ti-2W-0.37Y2O3 (K3) and Fe-20Cr-4.5Al-0.34Ti-0.5Y2O3 (MA956) oxide dispersion strengthened (ODS) ferritic steels produced by mechanical alloying (MA) and followed by hot extrusion have been studied using high-resolution transmission electron microscopy (HRTEM) techniques to gain insight about the formation mechanism of nanoparticles in MA/ODS steels. The observations of Y-Al-O complex-oxide nanoparticles in both ODS steels imply that decomposition of Y2O3 in association with internal oxidation of Al occurred during mechanical alloying. While the majority of oxide nanoparticles formed in both steels is Y4Al2O9, a few oxide particles of YAlO3 are also occasionally observed. These results reveal that Ti (0.3 wt %) plays an insignificant role in forming oxide nanoparticles in the presence of Al (4.5 wt %). HRTEM observations of crystalline nanoparticles larger than {approx}2 nm and amorphous or disordered cluster domains smaller than {approx}2 nm provide an insight into the formation mechanism of oxide nanoparticle in MA/ODS steels, which we believe from our observations involves a solid-state amorphous precursor followed by recrystallization. Dual ion-beam irradiations using He{sup +} + Fe{sup +8} ions were employed to gain more detailed insight about the role of nanoparticles in suppressing radiation-induced swelling. This is elaborated through TEM examinations of cavity distributions in ion-irradiated Fe-14Cr and K3-ODS ferritic steels. HRTEM observations of helium-filled cavities (helium bubbles) preferably trapped at nanoscale oxide particles and clusters in ion-irradiated K3-ODS are presented. Finally, we describe the results from triple ion-beam irradiations using H{sup +} + He{sup +} + Fe{sup +8} ions to emulate fusion first wall radiation effects. Preliminary work is reported that confirms the existence of significant hydrogen synergistic effects described earlier by Tanaka et al., for Fe(Cr) and by Wakai et al., for F82H reduced activation ferritic martensitic (RAF/M) steel. These previous results combined with our data suggest a complex new 'catalytic' mechanism whereby H interacts with the steady state population of defects and the embryonic cavities so as to accelerated cavity (void) growth in both Fe(Cr) and under special conditions in ODS steels.

Fluss, M J; Hsiung, L L; Marian, J

2011-11-20T23:59:59.000Z

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301

OEPB 207. Residential Air Conditioning Systems 6 cr. (4+4P) Air conditioning system design and maintenance including evaporative  

E-Print Network (OSTI)

construction surveying, footings, foundation form work, framing, sheathing, insula- tion. Basic electrical methods. Prerequisite: working as a plumber's apprentice. OEBT 102. Introduction to Construction II 2 cr. Prerequisite: working as a plumber's apprentice. OEBT 104. Woodworking Skills I 3 cr. (1+4P) Use and care

Castillo, Steven P.

302

Audit of Department of Energy Support Service Contracting, CR-B-95-06  

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

DEPARTMENT OF ENERGY DEPARTMENT OF ENERGY OFFICE OF INSPECTOR GENERAL AUDIT OF DEPARTMENT OF ENERGY SUPPORT SERVICE CONTRACTING Report Number: Capital Regional Audit Office Date of Issue: Germantown, MD 20874 REPORT NO. U.S. DEPARTMENT OF ENERGY RELEASE DATE OFFICE OF INSPECTOR GENERAL CR-B-95-06 JUNE 30, 1995 _________________________________________________________________ _______________________ AUDIT OF DEPARTMENT OF ENERGY SUPPORT SERVICE CONTRACTING

303

Microstructure and Mechanical Property of Cu-40%Zn-0.5%Cr Alloy ...  

Science Conference Proceedings (OSTI)

Yield stress of extruded P/M Cu-40Zn-0.5Cr brass alloy at 773 K was 514.6 MPa, high value of 54.7% of the conventional P/M Cu60-Zn40 brass alloy at same ...

304

Relation between thermal expansion and interstitial formation energy in pure Fe and Cr  

E-Print Network (OSTI)

Relation between thermal expansion and interstitial formation energy in pure Fe and Cr Janne potentials give lower interstitial formation energy, but predict too small thermal expansion. We also show vacancy activation energy. Thermal expansion coefficients as function of temperature are displayed in Fig

305

Investigation of Modified Ni-Cr-Mn Base Alloys for SOFC Interconnect Applications  

Science Conference Proceedings (OSTI)

Two Ni-Cr-W-Mn base alloys based on Haynes 230 were developed and evaluated against criteria relevant to SOFC interconnect applications, which included oxidation behavior under SOFC operating conditions, scale electrical conductivity, and thermal expansion. It was found that, similar to the ferritic stainless steel Crofer22 APU, additions of Mn led to the formation of a unique scale that was comprised of a M3O4 (M=Mn, Cr, Ni, …) spinel-rich top layer and Cr2O3-rich sub-layer. The modified alloys demonstrated reasonable oxidation resistance under SOFC operating conditions, though the Mn additions increased the scale growth rate and thus sacrificed to some extent the oxidation resistance of the base alloy (Haynes 230). The formation of a spinel-rich top layer improved the scale conductivity, especially during the early stages of oxidation, but the higher scale growth rate resulted in a higher rate of increase in the area-specific electrical resistance. Due to their FCC crystal structure, the Ni-Cr-W-Mn base alloys demonstrated a CTE that was higher than that of anode-supported cells and candidate ferritic stainless steels such as Crofer22 APU.

Yang, Z Gary; Singh, Prabhakar; Stevenson, Jeffry W.; Xia, Gordon

2006-09-01T23:59:59.000Z

306

The field emission properties of graphene aggregates films deposited on Fe-Cr-Ni alloy substrates  

Science Conference Proceedings (OSTI)

The graphene aggregates films were fabricated directly on Fe-Cr-Ni alloy substrates by microwave plasma chemical vapor deposition system (MPCVD). The source gas was a mixture of H2 and CH4 with flow rates of 100 sccm and 12 sccm, ...

Zhanling Lu; Wanjie Wang; Xiaotian Ma; Ning Yao; Lan Zhang; Binglin Zhang

2010-01-01T23:59:59.000Z

307

OEIM 210. Industrial Mechanics III 4 cr. Air compressors, sliding surface bearings, boiler maintenance, boiler  

E-Print Network (OSTI)

OEIM 210. Industrial Mechanics III 4 cr. Air compressors, sliding surface bearings, boiler maintenance, boiler tube repairs, basic arc and gas welding, measurement tools, gauge glass maintenance, heat by employer and instructor on boiler inspection and cleaning, centrifugal pumps, basic rigging, piping

Castillo, Steven P.

308

Comparison of SEM and Optical Analysis of DT Neutron Tracks in CR-39 Detectors  

SciTech Connect

A solid state nuclear track detector, CR-39, was exposed to DT neutrons. After etching, the resultant tracks were analyzed using both an optical microscope and a scanning electron microscope (SEM). In this communication, both methods of analyzing DT neutron tracks are discussed.

P.A. Mosier-Boss, L.P.G. Forsley, P. Carbonnelle, M.S. Morey, J.R. Tinsley, J. P. Hurley, F.E. Gordon

2012-01-01T23:59:59.000Z

309

Investigations of HRC®-Stimulated Bioreduction of Cr(VI) at Hanford 100H  

DOE Green Energy (OSTI)

Hypothesis: Lactate (Hydrogen Release Compound-HRC{trademark}) injection into chromium contaminated groundwater through an injection well will cause indirect or direct bioreduction of chromate [Cr(VI)] and precipitation of insoluble species of [Cr(III)] on soil particles, probably catalyzed at oxide surfaces, at the field scale. Objective: Assess the potential for immobilizing and detoxifying chromium-contaminated groundwater using lactate-stimulated bioreduction of Cr(VI) to Cr(III) at the Hanford Site's 100-H Area field site. Types of Research: A three-well system (injection well and upgradient and downgradient monitoring wells) was used for conducting the in situ biostimulation and monitoring. To assess the pre- and post-injection test groundwater conditions, we used an integrated monitoring approach, involving hydraulic, geochemical, microbial, and geophysical techniques and analytical methods, as well as conducted five Br-tracer injection tests and four pumping tests (concurrently with the Br-tracer tests). Groundwater biostimulation was conducted by injection of 40 lbs of {sup 13}C-labeled HRC into the injection well (over the depth interval from 44-50 ft) on 8/3/2004, followed by low-flow pumping (1.2 to 2.5 l/min) through the downgradient well (to ensure capture of groundwater flow lines passing through the injection well) for 27 days. Main Results: Although the total microbial population in sediments is relatively low (<10{sup 5} cells g-1) under background conditions, which is likely insufficient for direct enzymatic Cr(VI) reduction, several types of bacteria, e.g., Bacillus/Arthrobacter and Geobacter, are present in the Hanford sediments, which are known to reduce or sorb hexavalent chromium. The HRC injection stimulated microbial cell counts to reach the maximum of 2 x 10{sup 7} cells g{sup -1} 13-17 days after the injection, and generated highly reducing conditions. Geochemical and isotopic observations confirmed microbial metabolism of HRC. The Cr(VI) concentration in the monitoring and pumping wells decreased below drinking water minimum contaminant limits and remained below background concentrations even after 1.5 years, when redox conditions and microbial densities had returned to background levels. Fe(II) levels have remained high and may account for the continued reduction of Cr(VI).

T.C. Hazen; B. Faybishenko; D. Joyner; S. Borglin; E.Brodie; S. Hubbard; K. Williams; J. Peterson; J. Wan; T. Tokunaga; Long, P.E.; Newcomer, D.; Koenigsberg, S.; Willet, A.

2005-04-18T23:59:59.000Z

310

Investigations of HRC®-Stimulated Bioreduction of Cr(VI) at Hanford 100H  

DOE Green Energy (OSTI)

Hypothesis: Lactate (Hydrogen Release Compound-HRC{trademark}) injection into chromium contaminated groundwater through an injection well will cause indirect or direct bioreduction of chromate [Cr(VI)] and precipitation of insoluble species of [Cr(III)] on soil particles, probably catalyzed at oxide surfaces, at the field scale. Objective: Assess the potential for immobilizing and detoxifying chromium-contaminated groundwater using lactate-stimulated bioreduction of Cr(VI) to Cr(III) at the Hanford Site's 100-H Area field site. Types of Research: A three-well system (injection well and upgradient and downgradient monitoring wells) was used for conducting the in situ biostimulation and monitoring. To assess the pre- and post-injection test groundwater conditions, we used an integrated monitoring approach, involving hydraulic, geochemical, microbial, and geophysical techniques and analytical methods, as well as conducted five Br-tracer injection tests and four pumping tests (concurrently with the Br-tracer tests). Groundwater biostimulation was conducted by injection of 40 lbs of {sup 13}C-labeled HRC into the injection well (over the depth interval from 44-50 ft) on 8/3/2004, followed by low-flow pumping (1.2 to 2.5 l/min) through the downgradient well (to ensure capture of groundwater flow lines passing through the injection well) for 27 days. Main Results: Although the total microbial population in sediments is relatively low (<10{sup 5} cells g{sup -1}) under background conditions, which is likely insufficient for direct enzymatic Cr(VI) reduction, several types of bacteria, e.g., Bacillus/Arthrobacter and Geobacter, are present in the Hanford sediments, which are known to reduce or sorb hexavalent chromium. The HRC injection stimulated microbial cell counts to reach the maximum of 2 x 10{sup 7} cells g{sup -1} 13-17 days after the injection, and generated highly reducing conditions. Geochemical and isotopic observations confirmed microbial metabolism of HRC. The CR(VI) concentration in the monitoring and pumping wells decreased below drinking water minimum contaminant limits and remained below background concentrations even after 1.5 years, when redox conditions and microbial densities had returned to background levels. Fe(II) levels have remained high and may account for the continued reduction of Cr(VI).

Hazen, T.C.; Faybishenko, B.; Joyner, D.; Borglin, S.; Brodie, E.; Hubbard, S.; Williams, K.; Peterson, J.; Wan, J.; Tokunaga, T.; Firestone, M.; Long, P.E.; Resch, C.T.; Cantrell, K.; Newcomer, D.; Koenigsberg, S.; Willet, A.

2006-04-05T23:59:59.000Z

311

Rare-earth chromium gallides RE{sub 4}CrGa{sub 12} (RE=Tb-Tm)  

Science Conference Proceedings (OSTI)

The ternary rare-earth-metal chromium gallides RE{sub 4}CrGa{sub 12} (RE=Tb-Tm) have been prepared by reactions of the elements at 1000 Degree-Sign C in the presence of excess gallium used as a self-flux. Their structures are derived by inserting Cr atoms into a quarter of the empty Ga{sub 6} octahedral clusters found in the parent binary gallides REGa{sub 3} (AuCu{sub 3}-type), although single-crystal X-ray diffraction studies suggest that complex superstructures may be adopted. An ideal ordered Y{sub 4}PdGa{sub 12}-type structure was successfully refined for a crystal of Dy{sub 4}CrGa{sub 12} (Pearson symbol cI34, space group Im3{sup Macron }m, Z=2, a=8.572(1) A). Magnetic measurements on single-crystal samples reveal ferromagnetic or possibly ferrimagnetic ordering for the Tb, Dy, and Er members (T{sub C}=22, 15, and 2.8 K, respectively) and antiferromagnetic ordering for the Ho member (T{sub N}=7.5 K). Band structure calculations on a hypothetical 'Y{sub 4}CrGa{sub 12}' model suggest that the Cr atoms carry no local magnetic moment. - Graphical abstract: RE{sub 4}CrGa{sub 12} is derived by inserting Cr atoms into empty Ga{sub 6} octahedral clusters present in the parent binary gallides REGa{sub 3}. Highlights: Black-Right-Pointing-Pointer RE{sub 4}MGa{sub 12} (previously known for M=Fe, Ni, Pd, Pt, Ag) has been extended to M=Cr. Black-Right-Pointing-Pointer RE{sub 4}CrGa{sub 12} compounds show predominantly ferromagnetic ordering. Black-Right-Pointing-Pointer Band structure calculations suggest that Cr atoms carry no local magnetic moment.

Slater, Brianna R.; Bie, Haiying; Stoyko, Stanislav S. [Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2 (Canada)] [Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2 (Canada); Bauer, Eric D.; Thompson, Joe D. [Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)] [Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States); Mar, Arthur, E-mail: arthur.mar@ualberta.ca [Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2 (Canada)] [Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2 (Canada)

2012-12-15T23:59:59.000Z

312

Fate of Cu, Cr, and As during combustion of impregnated wood with and without peat additive  

SciTech Connect

The EU Directive on incineration of waste regulates the harmful emissions of particles and twelve toxic elements, including copper, chromium, and arsenic. Using a 15 kW pellets-fueled grate burner, experiments were performed to determine the fate of copper, chromium, and arsenic during combustion of chromate copper arsenate (CCA) preservative wood. The fate and speciation of copper, chromium, and arsenic were determined from analysis of the flue gas particles and the bottom ash using SEM-EDS, XRD, XPS, and ICP-AES. Chemical equilibrium model calculations were performed to interpret the experimental findings. The results revealed that about 5% copper, 15% chromium, and 60% arsenic were volatilized during combustion of pure CCA-wood, which is lower than predicted volatilization from the individual arsenic, chromium, and copper oxides. This is explained by the formation of more stable refractory complex oxide phases for which the stability trends and patterns are presented. When co-combusted with peat, an additional stabilization of these phases was obtained and thus a small but noteworthy decrease in volatilization of all three elements was observed. The major identified phases for all fuels were CuCrO{sub 2}(s), (Fe,Mg,Cu)(Cr,Fe,Al)O{sub 4}(s), Cr{sub 2}O{sub 3}(s), and Ca{sub 3}(AsO{sub 4}){sub 2}(s). Arsenic was also identified in the fine particles as KH{sub 2}AsO{sub 4}(s) and As{sub 2}O{sub 3}). A strong indication of hexavalent chromium in the form of K{sub 2}CrO{sub 4} or as a solid solution between K{sub 3}Na(CrO{sub 4}){sub 2} and K{sub 3}Na(SO{sub 4}){sub 2} was found in the fine particles. Good qualitative agreement was observed between experimental data and chemical equilibrium model calculations. 38 refs., 6 figs., 2 tabs.

Karin Lundholm; Dan Bostroem; Anders Nordin; Andrei Shchukarev [Umeaa University, Umeaa (Sweden). Energy Technology and Thermal Process Chemistry

2007-09-15T23:59:59.000Z

313

Conceptual design for a linear-transformer driver (LTD)-based refurbishment and upgrade of the Saturn accelerator pulse-power system.  

Science Conference Proceedings (OSTI)

The purpose of this work was to develop a conceptual design for the Saturn accelerator using the modular Liner-Transformer Driver (LTD) technology to identify risks and to focus development and research for this new technology. We present a reference design for a Saturn class driver based on a number of linear inductive voltage adders connected in parallel. This design is very similar to a design reported five years ago [1]. However, with the design reported here we use 1-MA, 100-kV LTD cavities as building blocks. These cavities have already been built and are currently in operation at the HCEI in Tomsk, Russia [2]. Therefore, this new design integrates already-proven individual components into a full system design.

Mazarakis, Michael Gerrassimos; Struve, Kenneth William

2006-09-01T23:59:59.000Z

314

Laser Welding and Post Weld Treatment of Modified 9Cr-1MoVNb Steel [Laser  

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

Laser Welding of Metals > Laser Welding of Metals > Laser Welding and Post Weld Treatment of Modified 9Cr-1MoVNb Steel Capabilities Engineering Experimentation Reactor Safety Experimentation Aerosol Experiments System Components Laser Applications Overview Laser Oil & Gas Well Drilling Laser Heat Treatment Laser Welding of Metals On-line Monitoring Laser Beam Delivery Laser Glazing of Railroad Rails High Power Laser Beam Delivery Decontamination and Decommissioning Refractory Alloy Welding Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Laser Applications Laboratory Laser Welding of Metals Laser Welding and Post Weld Treatment of Modified 9Cr-1MoVNb Steel Zhiyue Xu Nuclear Engineering Division of Argonne National Laboratory

315

Absence of long-range chemical ordering in equimolar FeCoCrNi  

Science Conference Proceedings (OSTI)

Equimolar FeCoCrNi alloys have been the topic of recent research as 'high-entropy alloys,' where the name is derived from the high configurational entropy of mixing for a random solid solution. Despite their name, no systematic study of ordering in this alloy system has been performed to date. Here, we present results from anomalous x-ray scattering and neutron scattering on quenched and annealed samples. An alloy of FeNi{sub 3} was prepared in the same manner to act as a control. Evidence of long-range chemical ordering is clearly observed in the annealed FeNi{sub 3} sample from both experimental techniques. The FeCoCrNi sample given the same heat treatment lacks long-range chemical order.

Lucas, M. S. [Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433 (United States); UTC Inc., 1270 North Fairfield Road, Dayton, Ohio 45432 (United States); Wilks, G. B.; Senkov, O. N. [Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433 (United States); UES, Inc., 4401 Dayton-Xenia Rd., Dayton, Ohio 45432 (United States); Mauger, L.; Munoz, J. A. [California Institute of Technology, W. M. Keck Laboratory 138-78, Pasadena, California 91125 (United States); Michel, E. [Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433 (United States); Wright State University, Dayton, Ohio 45435 (United States); Horwath, J.; Semiatin, S. L. [Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433 (United States); Stone, M. B.; Abernathy, D. L. [Oak Ridge National Laboratory, 1, Bethel Valley Road, Oak Ridge, Tennessee 37831 (United States); Karapetrova, E. [Argonne National Laboratory, Argonne, Illinois 60439 (United States)

2012-06-18T23:59:59.000Z

316

High-reflectivity Cr/Sc multilayer condenser for compact soft x-ray microscopy  

Science Conference Proceedings (OSTI)

The condenser is a critical component in compact water-window x-ray microscopes as it influences the exposure time via its efficiency and the resolution via its numerical aperture. Normal-incidence multilayer mirrors can reach large geometrical collection efficiencies and match the numerical aperture of the zone plate but require advanced processing for high total reflectivity. In the present article we demonstrate large-diameter normal-incidence spherical Cr/Sc multilayer condensers with high and uniform reflectivity. Dc-magnetron sputtering was used to deposit 300 bilayers of Cr/Sc with a predetermined d-spacing matching the {lambda}=3.374 nm operating wavelength on spherical substrates. The mirrors show a uniform reflectivity of {approx}3% over the full 58 mm diameter condenser area. With these mirrors an improvement in exposure time by a factor of 10 was achieved, thereby improving the performance of the compact x-ray microscope significantly.

Stollberg, H.; Yulin, S.; Takman, P. A. C.; Hertz, H. M. [Biomedical and X-Ray Physics, Department of Applied Physics, KTH-AlbaNova, 10691 Stockholm (Sweden); Fraunhofer-Institut fur Angewandte Optik und Feinmechanik, Albert-Einstein-Strasse 7, 07745 Jena (Germany); Biomedical and X-Ray Physics, Department of Applied Physics, KTH-AlbaNova, 10691 Stockholm (Sweden)

2006-12-15T23:59:59.000Z

317

Cycle timer for testing electric vehicles. [Device to assist test driver to follow stop-and-go driving cycles  

DOE Green Energy (OSTI)

A cycle timer was developed to assist the driver of an electric vehicle in more accurately following and repeating SAE driving schedules. These schedules require operating an electric vehicle in a selected stop-and-go driving cycle and repeating this pattern until the vehicle ceases to meet the requirements of the cycle. The heart of the system is a programmable read-only memory (PROM) that has the required test profiles permanently recorded on plug-in cards, one card for each different driving schedule. The PROM generates a direct-current analog signal that drives a speedometer displayed on one scale of a dual-movement meter. The second scale of the dual-movement meter displays the actual speed of the vehicle as recorded by the fifth wheel. The vehicle operator controls vehicle speed to match the desired profile speed. One second before a speed transition (such as acceleration to cruise or cruise to coast), a small buzzer sounds for /sup 1///sub 2/ s to forewarn the operator of a change. A longer signal of 1 s is used to emphasize the start of a new cycle. The PROM controls the recycle start time as well as the buzzer activation. The cycle programmer is powered by the test vehicle's 12-V accessory battery, through a 5-V regulator and a 12-V dc-to-dc converter.

Soltis, R.F.

1978-01-01T23:59:59.000Z

318

Design of a 7-MV Linear Transformer Driver (LTD) for down-hole flash x-ray radiography.  

Science Conference Proceedings (OSTI)

Pulsed power driven flash x-ray radiography is a valuable diagnostic for subcritical experiments at the Nevada Test Site. The existing dual-axis Cygnus system produces images using a 2.25 MV electron beam diode to produce intense x-rays from a small source. Future hydrodynamic experiments will likely use objects with higher areal mass, requiring increased x-ray dose and higher voltages while maintaining small source spot size. A linear transformer driver (LTD) is a compact pulsed power technology with applications ranging from pulsed power flash x-ray radiography to high current Z-pinch accelerators. This report describes the design of a 7-MV dual-axis system that occupies the same lab space as the Cygnus accelerators. The work builds on a design proposed in a previous report [1]. This new design provides increased diode voltage from a lower impedance accelerator to improve coupling to low impedance diodes such as the self magnetic pinch (SMP) diode. The design also improves the predicted reliability by operating at a lower charge voltage and removing components that have proven vulnerable to failure. Simulations of the new design and experimental results of the 1-MV prototype are presented.

Cordova, Steve Ray; Welch, Dale Robert (Voss Scientific, Albuquerque, NM); Oliver, Bryan Velten; Rose, David Vincent (Voss Scientific, Albuquerque, NM); Johnson, David Lee (L-3 Communications - Pulse Sciences, San Leandro, CA); Bruner, Nichelle Lee (Voss Scientific, Albuquerque, NM); Leckbee, Joshua J.

2008-09-01T23:59:59.000Z

319

Corrosion Behavior of NiCrFe Alloy 600 in High Temperature, Hydrogenated Water  

SciTech Connect

The corrosion behavior of Alloy 600 (UNS N06600) is investigated in hydrogenated water at 260 C. The corrosion kinetics are observed to be parabolic, the parabolic rate constant being determined by chemical descaling to be 0.055 mg dm{sup -2} hr{sup -1/2}. A combination of scanning and transmission electron microscopy, supplemented by energy dispersive X-ray spectroscopy and grazing incidence X-ray diffraction, are used to identify the oxide phases present (i.e., spinel) and to characterize their morphology and thickness. Two oxide layers are identified: an outer, ferrite-rich layer and an inner, chromite-rich layer. X-ray photoelectron spectroscopy with argon ion milling and target factor analysis is applied to determine spinel stoichiometry; the inner layer is (Ni{sub 0.7}Fe{sub 0.3})(Fe{sub 0.3}Cr{sub 0.7}){sub 2}O{sub 4}, while the outer layer is (Ni{sub 0.9}Fe{sub 0.1})(Fe{sub 0.85}Cr{sub 0.15}){sub 2}O{sub 4}. The distribution of trivalent iron and chromium cations in the inner and outer oxide layers is essentially the same as that found previously in stainless steel corrosion oxides, thus confirming their invariant nature as solvi in the immiscible spinel binary Fe{sub 3}O{sub 4}-FeCr{sub 2}O{sub 4} (or NiFe{sub 2}O{sub 4}-NiCr{sub 2}O{sub 4}). Although oxidation occurred non-selectively, excess quantities of nickel(II) oxide were not found. Instead, the excess nickel was accounted for as recrystallized nickel metal in the inner layer, as additional nickel ferrite in the outer layer, formed by pickup of iron ions from the aqueous phase, and by selective release to the aqueous phase.

SE Ziemniak; ME Hanson

2004-11-02T23:59:59.000Z

320

The energy distribution of beta CrB for the specific stellar abundances  

E-Print Network (OSTI)

The comparison of the observed and computed energy distributions of beta CrB has shown that a model with the specific chemical composition of the star can account for the visual enery distribution, while it is still unable to reproduce ultraviolet observations shortward of 1700 A. Furthermore, the predicted absorption of strong Fe II and Mg II UV lines is much larger than the observed one.

F. Castelli

1998-05-06T23:59:59.000Z

Note: This page contains sample records for the topic "driver cr eek" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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321

Fragmentation studies of 158 A GeV Pb ions using CR39 nuclear track detectors  

E-Print Network (OSTI)

Six stacks of CR39 nuclear track detectors with different targets were exposed to a lead ion beam of 158 A GeV at the CERN-SPS, at normal incidence, in order to study the fragmentation properties of ultra-relativistic lead nuclei. Measurements of the total, break-up and pick-up charge-changing cross sections of 158 A GeV Pb ions have been made for the first time.

Dekhissi, H; Giorgini, M; Mandrioli, G; Manzoor, S; Patrizii, L; Popa, V; Serra, P; Togo, V

2000-01-01T23:59:59.000Z

322

Comparison of electric and magnetic quadrupole focusing for the low energy end of an induction-linac-ICF (Inertial-Confinement-Fusion) driver  

SciTech Connect

This report compares two physics designs of the low energy end of an induction linac-ICF driver: one using electric quadrupole focusing of many parallel beams followed by transverse combining; the other using magnetic quadrupole focusing of fewer beams without beam combining. Because of larger head-to-tail velocity spread and a consequent rapid current amplification in a magnetic focusing channel, the overall accelerator size of the design using magnetic focusing is comparable to that using electric focusing.

Kim, C.H.

1987-04-01T23:59:59.000Z

323

Prospects for inertial fusion energy based on a diode-pumped solid-state laser (DPSSL) driver: Overview and development path  

SciTech Connect

It is now known with certainty that the type of fusion known as inertial fusion will work with sufficient energy input, so inertial fusion is really beyond the ``scientific breakeven`` point in many respects. The most important question that remains for inertial fusion energy (IFE) is whether this type of fusion can operate with sufficiently low input energy to make it economically feasible for energy production. The constraint for low input energy demands operation near the inertial fusion ignition threshold, and such operation creates enormous challenges to discover a target design that will produce sufficient energy gain. There are also multiple issues relating to the scientific feasibility of using a laboratory-type ``driver`` to energize a target, such as those concerning bandwidth and beam smoothing for ``direct drive,`` and extension of hohlraum plasma physics to the IFE scale for ``indirect drive.`` One driver that appears as though it will be able to meet the IFE requirements, assuming modest development and sufficient target gain, is a diode-pumped solid-state laser (DPSSL). We give an overview of this type of laser system, and explain what development remains for the economic production of electricity using this type of driver for IFE.

Orth, C.D.

1997-03-01T23:59:59.000Z

324

HIGH TEMPERATURE BRAZING ALLOY FOR JOINT Fe-Cr-Al MATERIALS AND AUSTENITIC AND FERRITIC STAINLESS STEELS  

DOE Patents (OSTI)

A new high temperature brazing alloy is described that is particularly suitable for brazing iron-chromiumaluminum alloys. It consists of approximately 20% Cr, 6% Al, 10% Si, and from 1.5 to 5% phosphorus, the balance being iron.

Cost, R.C.

1958-07-15T23:59:59.000Z

325

Comparative studies of etching mechanisms of CR-39 in NaOH/H2O and NaOH/ethanol  

E-Print Network (OSTI)

of scission of the carbonate ester bond in CR-39 by the hydroxide ion through basic hydro- lysis of ester-39 detectors during etching in NaOH/ethanol has also shown that sodium car- bonate is present

Yu, K.N.

326

In situ long-term reductive bioimmobilization of Cr(VI) in groundwater using hydrogen release compound  

E-Print Network (OSTI)

100 H Area of the DOE Hanford Facility, Quantum EngineeringCr-immobilization research site at Hanford 100-H area. Wellexperiment was conducted at the Hanford Site (Washington), a

Faybishenko, B.

2009-01-01T23:59:59.000Z

327

Microbial community changes during sustained Cr(VI) reduction at the 100H site in Hanford, WA  

E-Print Network (OSTI)

at the 100H site in Hanford, WA Romy Chakraborty 1 , Eoin Lcontaminated aquifer at the Hanford (WA) 100H site in 2004.Cr(VI) reduction at Hanford, and a comparison of the

Chakraborty, Romy

2010-01-01T23:59:59.000Z

328

Cr-W-V bainitic/ferritic steel with improved strength and toughness and method of making  

DOE Patents (OSTI)

A high strength, high toughness Cr-W-V ferritic steel composition suitable for fast induced-radioactivity (FIRD) decay after irradiation in a fusion reactor comprises 2.5-3.5 wt % Cr, 2. This invention was made with Government support under contract DE-AC05-840R21400 awarded by the U.S. Department of Energy to Martin Marietta Energy Systems, Inc. and the Government has certain rights in this invention.

Klueh, Ronald L. (Knoxville, TN); Maziasz, Philip J. (Oak Ridge, TN)

1994-01-01T23:59:59.000Z

329

Myelin Activates FAK/Akt/NF-kB Pathways and Provokes CR3-Dependent Inflammatory Response in Murine  

E-Print Network (OSTI)

Myelin Activates FAK/Akt/NF-kB Pathways and Provokes CR3-Dependent Inflammatory Response in Murine is through activation of FAK/PI3K/Akt/NF-kB signaling pathways and CR3 contributes to myelin-induced PI3K/Akt/NF-kB) are not able to activate NF-kB signaling pathway. In conclusion, our results demonstrate a crucial role

Fan, Jianqing

330

Utility Integrated Resource Planning: An Emerging Driver of NewRenewable Generation in the Western United States  

DOE Green Energy (OSTI)

In the United States, markets for renewable generation--especially wind power--have grown substantially in recent years. This growth is typically attributed to technology improvements and resulting cost reductions, the availability of federal tax incentives, and aggressive state policy efforts. But another less widely recognized driver of new renewable generation is poised to play a major role in the coming years: utility integrated resource planning (IRP). Common in the late-1980s to mid-1990s, but relegated to lesser importance as many states took steps to restructure their electricity markets in the late-1990s, IRP has re-emerged in recent years as an important tool for utilities and regulators, particularly in regions such as the western United States, where retail competition has failed to take root. As practiced in the United States, IRP is a formal process by which utilities analyze the costs, benefits, and risks of all resources available to them--both supply- and demand-side--with the ultimate goal of identifying a portfolio of resources that meets their future needs at lowest cost and/or risk. Though the content of any specific utility IRP is unique, all are built on a common basic framework: (1) development of peak demand and load forecasts; (2) assessment of how these forecasts compare to existing and committed generation resources; (3) identification and characterization of various resource portfolios as candidates to fill a projected resource deficiency; (4) analysis of these different ''candidate'' resource portfolios under base-case and alternative future scenarios; and finally, (5) selection of a preferred portfolio, and creation of a near-term action plan to begin to move towards that portfolio. Renewable resources were once rarely considered seriously in utility IRP. In the western United States, however, the most recent resource plans call for a significant amount of new wind power capacity. These planned additions appear to be motivated by the improved economics of wind power, an emerging understanding that wind integration costs are manageable, and a growing acceptance of wind by electric utilities. Equally important, utility IRPs are increasingly recognizing the inherent risks in fossil-based generation portfolios--especially natural gas price risk and the financial risk of future carbon regulation--and the benefits of renewable energy in mitigating those risks. This article, which is based on a longer report from Berkeley Lab,i examines how twelve investor-owned utilities (IOUs) in the western United States--Avista, Idaho Power, NorthWestern Energy (NWE), Portland General Electric (PGE), Puget Sound Energy (PSE), PacifiCorp, Public Service Company of Colorado (PSCo), Nevada Power, Sierra Pacific, Pacific Gas & Electric (PG&E), Southern California Edison (SCE), and San Diego Gas & Electric (SDG&E)--treat renewable energy in their most recent resource plans (as of July 2005). In aggregate, these twelve utilities supply approximately half of all electricity demand in the western United States. In reviewing these plans, our purpose is twofold: (1) to highlight the growing importance of utility IRP as a current and future driver of renewable generation in the United States, and (2) to suggest possible improvements to the methods used to evaluate renewable generation as a resource option. As such, we begin by summarizing the amount and types of new renewable generation planned as a result of these twelve IRPs. We then offer observations about the IRP process, and how it might be improved to more objectively evaluate renewable resources.

Bolinger, Mark; Wiser, Ryan

2005-09-25T23:59:59.000Z

331

Relationships among Non-Academic Employee Perceptions of Manager Leadership Behaviors, Meaningful Work, and Selected Performance Drivers  

E-Print Network (OSTI)

U.S. public institutions of higher education are unique work environments that employ millions of faculty, staff, and administrators. Reported research on human resource issues for non-academic employees within higher education, however, is scarce. Given that staff who work in higher education are increasingly being asked to perform at higher levels with equal or fewer resources, research is needed as to how these outcomes can be achieved. The purpose of this study was to determine to what extent non-academic middle manager participative and supportive leadership behaviors are related to employee perceptions of meaningful work (conceptualized as growth satisfaction, empowerment, person-job fit, and affiliation commitment) and to employee learning goal orientation, organizational citizenship behavior, and intention to turnover. A population of 4,235 employees within a large public institution of higher education in the southwestern part of the United States was asked to participate in an online survey. The survey was comprised of items from eight validated instruments with 45 items and additional demographic information. Respondents totaled 1,333 (31.5%). Data were analyzed using descriptive statistics, Cronbach’s alpha coefficient for reliability, exploratory factor analysis, and structural equation modeling techniques. Results of the study led to revisions of the initially proposed constructs via exploratory factor analysis, giving rise to seven constructs: Cooperative Leader Behavior, Work Fulfillment and Identity, Work Influence and Affiliation, Learning Goal Orientation, Personal Industry, Interpersonal Helping, and Intention to Turnover. Evaluation of the structural model for the revised constructs, with one added path, resulted in good fit (chi^2=3246.397 [796]=4.078, p=.000; CFI=.941; TLI=.936; RMSEA .048; SRMR=.051). Cooperative Leader Behavior was significantly and positively related to employee perceptions of Work Fulfillment and Identity (beta=.517, p<.05) and Work Influence and Affiliation (beta=.643, p<.05). Cooperative Leader Behavior, Work Fulfillment and Identity, and Work Influence and Affiliation were significantly and negatively related to Intention to Turnover (beta=-.436, p<.05; beta=-.480, p<.05; beta=-.293, p<.05, respectively). Work Fulfillment and Identity was significantly and positively related to Learning Goal Orientation (beta=.261, p<.05) and Personal Industry (beta=.309, p<.05). Work Influence and Affiliation was significantly and positively related to Interpersonal Helping (beta=.274, p<.05). Finally, Work Fulfillment and Identity and Work Influence and Affiliation had a significant bi-directional relationship (beta=.848, p<.05). Conclusions drawn from the results of this study led to, 1) recommendations and implications for the training and development of middle managers, 2) recommendations and implications for theory and research, and 3) recommendations and implications for practice. Higher education institutions that desire to foster employee perceptions of meaningful work and influence performance drivers such as intention to turnover should focus on developing middle-manager cooperative leadership behaviors. Additional research is needed to continue to revise, refine and validate the new constructs identified in this study, as well as to identify additional performance drivers in higher education responsive to cooperative leader behavior.

Hammons, Laura

2013-08-01T23:59:59.000Z

332

Feasibility of developing a portable driver performance data acquisition system for human factors research: Technical tasks. Volume 1  

SciTech Connect

A two-phase, multi-year research program entitled ``development of a portable driver performance data acquisition system for human factors research`` was recently completed. The primary objective of the project was to develop a portable data acquisition system for crash avoidance research (DASCAR) that will allow drive performance data to be collected using a large variety of vehicle types and that would be capable of being installed on a given vehicle type within a relatively short-time frame. During phase 1 a feasibility study for designing and fabricating DASCAR was conducted. In phase 2 of the research DASCAR was actually developed and validated. This technical memorandum documents the results from the feasibility study. It is subdivided into three volumes. Volume one (this report) addresses the last five items in the phase 1 research and the first issue in the second phase of the project. Volumes two and three present the related appendices, and the design specifications developed for DASCAR respectively. The six tasks were oriented toward: identifying parameters and measures; identifying analysis tools and methods; identifying measurement techniques and state-of-the-art hardware and software; developing design requirements and specifications; determining the cost of one or more copies of the proposed data acquisition system; and designing a development plan and constructing DASCAR. This report also covers: the background to the program; the requirements for the project; micro camera testing; heat load calculations for the DASCAR instrumentation package in automobile trunks; phase 2 of the research; the DASCAR hardware and software delivered to the National Highway Traffic Safety Administration; and crash avoidance problems that can be addressed by DASCAR.

Carter, R.J.; Barickman, F.S.; Spelt, P.F.; Schmoyer, R.L.; Kirkpatrick, J.R.

1998-01-01T23:59:59.000Z

333

Assessment of the mechanical performance of the Westinghouse BWR control rod CR 99 at high depletion levels  

SciTech Connect

A long-term program assessing the mechanical performance of the Westinghouse BWR control rod CR 99 at high depletion levels has been performed. The scope of the program has mainly been based on the operation of four CR 99 Generation 2 control rods in demanding positions during 6 and 7 cycles in the Leibstadt Nuclear Power Plant (KKL) and on the detailed visual inspections and blade wing thickness measurements that were performed after the rods were discharged. By correlating statistically the blade wing thickness measurements to the appearance of irradiation-assisted stress corrosion cracking (IASCC), the probability of IASCC appearance as function of the blade wing swelling was estimated. In order to correlate the IASCC probability of a CR 99 to its depletion, the {sup 10}B depletion of the studied rods was calculated in detail on a local level with the stochastic Monte Carlo code MCNP in combination with the Westinghouse nodal code system PHOENIX4/POLCA7. Using this information coupled to the blade wing measurement data, a finite element model describing the blade wing swelling of an arbitrary CR 99 design as function of {sup 10}B depletion could then be generated. In the final step, these relationships were used to quantify the probability of IASCC appearance as function of the {sup 10}B depletion of the CR 99 Generations 2 and 3. Applying this detailed mapping of the CR 99 behavior at high depletion levels and using an on-line core monitoring system with explicit {sup 10}B depletion tracking capabilities will enable a reliable prediction of the probability for IASCC appearance, thus enhancing the optimized design and the sound operation of the CR 99 control rod. Another important outcome of the program was that it was clearly shown that no significant amount of boron leakage did occur through any of the detected IASCC cracks, despite the very high depletion levels achieved. (authors)

Seltborg, P.; Jinnestrand, M. [Westinghouse Electric Sweden AB, SE-721 63 Vaesteraas (Sweden)

2012-07-01T23:59:59.000Z

334

CHARACTERIZATION OF PRESOLAR MATERIAL IN THE CR CHONDRITE NORTHWEST AFRICA 852  

Science Conference Proceedings (OSTI)

We investigated the inventory of presolar silicate, oxide, and silicon carbide (SiC) grains in the CR2 chondrite Northwest Africa (NWA) 852. Thirty-one O-anomalous grains were detected: 24 were identified as silicates ({approx}78 ppm); the remaining 7 are Al-rich oxides ({approx}38 ppm). NWA 852 is the first C2 chondrite containing O-anomalous presolar dust in concentrations comparable to other more primitive meteorites. Eight presolar SiC grains have been found, representing the highest abundance ({approx}160 ppm) observed so far in primitive meteorites. {sup 15}N-enriched matter is also present, although very heterogeneously distributed. Twenty-six of the O-anomalous grains are enriched in {sup 17}O, originating from the outflows of low-mass asymptotic giant branch (AGB) stars. We calculate a silicate/oxide abundance ratio of {approx}2, which indicates a higher degree of aqueous alteration than observed for other presolar-grain-rich meteorites. NWA 852 thus stands between the presolar-grain-rich CR3 chondrites (MET 00426, QUE 99177) and CR2 chondrites with low presolar grain abundances (Renazzo, NWA 530). We calculate an initial presolar silicate abundance of {approx}800 ppm for NWA 852, if silicate destruction by aqueous alteration is taken into account. Transmission electron microscope (TEM) investigation of one presolar Al-rich grain of an AGB star origin revealed that the grain mainly consists of a single crystal of hibonite with slightly varying orientations. A distinct subgrain (d < 100 nm) with a Ca/Ti ratio of {approx}1 is located in the central region, most likely indicating a perovskite-like phase. Our data suggest this phase to be a primary condensate and not an alteration product.

Leitner, J.; Hoppe, P. [Max Planck Institute for Chemistry, Particle Chemistry Department, P.O. Box 3060, 55020 Mainz (Germany); Vollmer, C. [Institut fuer Mineralogie, Westfaelische Wilhelms-Universitaet, 48149 Muenster (Germany); Zipfel, J., E-mail: jan.leitner@mpic.de [Forschungsinstitut und Naturmuseum Senckenberg, Sektion Meteoritenforschung, Senckenberganlage 25, 60325 Frankfurt (Germany)

2012-01-20T23:59:59.000Z

335

COMPREHENSIVE OBSERVATIONS OF THE ULTRAVIOLET SPECTRUM AND IMPROVED ENERGY LEVELS FOR SINGLY IONIZED CHROMIUM (Cr II)  

SciTech Connect

We report new observations of the spectrum of singly ionized chromium (Cr II) in the region 1142-3954 A. The spectra were recorded with the National Institute of Standards and Technology 10.7 m normal-incidence vacuum spectrograph and FT700 vacuum ultraviolet Fourier transform spectrometer. More than 3600 lines are classified as transitions among 283 even and 368 odd levels. The new spectral data are used to re-optimize the energy levels, reducing their uncertainties by a typical factor of 20.

Sansonetti, Craig J.; Nave, Gillian; Reader, Joseph [National Institute of Standards and Technology, Gaithersburg, MD 20899 (United States); Kerber, Florian [European Southern Observatory, D-85748 Garching (Germany)

2012-10-15T23:59:59.000Z

336

OLDER DRIVER STUDY  

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

xi xi ACRONYMS LIST AAA American Automobile Association AARP American Association of Retired Persons AD Alzheimer Disease ADA Americans with Disabilities Act ADL Activities of Daily Living AFDC Aid to Families with Dependent Children AHEAD Asset and Health Dynamics Among the Oldest Old AISG American Insurance Services Group ALS Activity Limitation Status AMA American Medical Association AoA Administration on Aging BEA Bureau of Economic Analysis BLS Bureau of Labor Statistics CODES Crash Outcome Data Evaluation System DHHS Department of Health and Human Services DOE Department of Energy DOT Department of Transportation EIA Energy Information Administration EPESE Established Populations for Epidemiologic Studies of the Elderly FARS Fatality Analysis Reporting System FHWA Federal Highway Administration

337

OLDER DRIVER STUDY  

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

R - 1 R - 1 October 2000 REFERENCES Administration on Aging. 1997.Demographic Changes. U.S. Department of Health and H u m a n S e r v i c e s . W a s h i n g t o n , D . C . http://pr.aoa.dhhs.gov/aoa/stats/aging21/demography.html . Administration on Aging. 1999. Profile of Older Americans: 1999. U.S. Department of H e a l t h a n d H u m a n S e r v i c e s . W a s h i n g t o n , D . C . http://pr.aoa.dhhs.gov/aoa/stats/profile/. Administration on Aging. 2000. Transportation and the Elderly. U.S. Department of H e a l t h a n d H u m a n S e r v i c e s . W a s h i n g t o n , D . C . http://www.aoa.gov/factsheets/Transportation.html. American Health Care Association. 1997. The Nursing Home Facility Sourcebook: Facts and Trends - 1997. p. 7. American Health Care Association. 1998. "The Looming Crisis." http://www.ahca.org/secure/nfres.htm and http://ahca.org/secure/alres.htm.

338

JLAB Electron Driver Capabilities  

Science Conference Proceedings (OSTI)

Several schemes have been proposed for adding a positron beam option at the Continuous Electron Beam Facility (CEBAF) at Jefferson Laboratory (JLAB). They involve using a primary beam of electrons or gamma rays striking a target to produce a positron beam. At JLAB electron beams are produced and used in two different accelerators, CEBAF and the JLAB FEL (Free Electron Laser). Both have low emittance and energy spread. The CEBAF beam is polarized. The FEL beam is unpolarized but the injector can produce a higher current electron beam. In this paper we describe the characteristics of these beams and the parameters relevant for positron production.

Kazimi, Reza [Jefferson Lab, 12000 Jefferson Avenue, Newport News, VA 23606 (United States)

2009-09-02T23:59:59.000Z

339

Drivers and Guidelines  

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

The Office of Health, Safety and Security HSS Logo Department of Energy Seal Left Tab SEARCH Right Tab TOOLS Right Tab Left Tab HOME Right Tab Left Tab ABOUT US Right Tab Left Tab...

340

Chromium Grain-boundary Segregation and Effect of Ion Beam Cleaning on Fe-Ni-Cr Alloys  

SciTech Connect

The grain boundaries play important role to control the mechanical strength of ternary alloys. From spacecrafts to naval vessels to nuclear reactors, stress corrosion cracking, brittleness, oxidation mostly originates at the grain boundaries and cause long term structural stability problems in most of the metallic structures [1]. Fe-Ni-Cr based ternary metal alloys have been widely studied for more than fifty years [2, 3]. Despite of vast amount of research, chromium diffusion in stainless steel or other Ni-Fe-Cr based ternary alloys is still an open scientific problem with challenges in structural stability and corrosion resistance [4]. Particularly, austenite Fe-Ni-Cr is looked upon favorably in space and jet engine industry for their improved resistance to stress corrosion cracking [5]. In solid oxide fuel cells (SOFC), Ni-alloys are frequently used as interconnects and seals [6]. In this communication, simultaneous energy dispersive spectroscopy (EDS) and electron backscatter diffraction (EBSD) mapping is utilized to study chemical and structural aspects of chromium segregation in Fe-Ni-Cr alloy. A focused Ga-ion beam is also utilized to study the effect of ion beam cleaning on EBSD image quality (IQ) and inverse pole figure (IPF) maps of Fe-Ni-Cr alloy.

Saraf, Laxmikant V.

2011-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "driver cr eek" 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

The high current, fast, 100ns, Linear Transformer Driver (LTD) developmental project at Sandia Laboratories and HCEI.  

SciTech Connect

Sandia National Laboratories, Albuquerque, N.M., USA, in collaboration with the High Current Electronic Institute (HCEI), Tomsk, Russia, is developing a new paradigm in pulsed power technology: the Linear Transformer Driver (LTD) technology. This technological approach can provide very compact devices that can deliver very fast high current and high voltage pulses straight out of the cavity with out any complicated pulse forming and pulse compression network. Through multistage inductively insulated voltage adders, the output pulse, increased in voltage amplitude, can be applied directly to the load. The load may be a vacuum electron diode, a z-pinch wire array, a gas puff, a liner, an isentropic compression load (ICE) to study material behavior under very high magnetic fields, or a fusion energy (IFE) target. This is because the output pulse rise time and width can be easily tailored to the specific application needs. In this paper we briefly summarize the developmental work done in Sandia and HCEI during the last few years, and describe our new MYKONOS Sandia High Current LTD Laboratory. An extensive evaluation of the LTD technology is being performed at SNL and the High Current Electronic Institute (HCEI) in Tomsk Russia. Two types of High Current LTD cavities (LTD I-II, and 1-MA LTD) were constructed and tested individually and in a voltage adder configuration (1-MA cavity only). All cavities performed remarkably well and the experimental results are in full agreement with analytical and numerical calculation predictions. A two-cavity voltage adder is been assembled and currently undergoes evaluation. This is the first step towards the completion of the 10-cavity, 1-TW module. This MYKONOS voltage adder will be the first ever IVA built with a transmission line insulated with deionized water. The LTD II cavity renamed LTD III will serve as a test bed for evaluating a number of different types of switches, resistors, alternative capacitor configurations, cores and other cavity components. Experimental results will be presented at the Conference and in future publications.

Ward, Kevin S. (Ketech Corporation, Albuquerque, NM); Long, Finis W.; Sinebryukhov, Vadim A. (High Current Electronic Institute (HCEI), Tomsk, Russia); Kim, Alexandre A. (High Current Electronic Institute (HCEI), Tomsk, Russia); Wakeland, Peter Eric (Ketech Corporation, Albuquerque, NM); McKee, G. Randall; Woodworth, Joseph Ray; McDaniel, Dillon Heirman; Fowler, William E.; Mazarakis, Michael Gerrassimos; Porter, John Larry, Jr.; Struve, Kenneth William; Savage, Mark Edward; Stygar, William A.; LeChien, Keith R.; Matzen, Maurice Keith

2010-09-01T23:59:59.000Z

342

Optimizing and Diversifying the Electric Range of Plug-in Hybrid Electric Vehicles for U.S. Drivers  

Science Conference Proceedings (OSTI)

To provide useful information for automakers to design successful plug-in hybrid electric vehicle (PHEV) products and for energy and environmental analysts to understand the social impact of PHEVs, this paper addresses the question of how many of the U.S. consumers, if buying a PHEV, would prefer what electric ranges. The Market-oriented Optimal Range for PHEV (MOR-PHEV) model is developed to optimize the PHEV electric range for each of 36,664 sampled individuals representing U.S. new vehicle drivers. The optimization objective is the minimization of the sum of costs on battery, gasoline, electricity and refueling hassle. Assuming no battery subsidy, the empirical results suggest that: 1) the optimal PHEV electric range approximates two thirds of one s typical daily driving distance in the near term, defined as $450/kWh battery delivered price and $4/gallon gasoline price. 2) PHEVs are not ready to directly compete with HEVs at today s situation, defined by the $600/kWh battery delivered price and the $3-$4/gallon gasoline price, but can do so in the near term. 3) PHEV10s will be favored by the market over longer-range PHEVs in the near term, but longer-range PHEVs can dominate the PHEV market if gasoline prices reach as high as $5-$6 per gallon and/or battery delivered prices reach as low as $150-$300/kWh. 4) PHEVs can become much more attractive against HEVs in the near term if the electric range can be extended by only 10% with multiple charges per day, possible with improved charging infrastructure or adapted charging behavior. 5) the impact of a $100/kWh decrease in battery delivered prices on the competiveness of PHEVs against HEVs can be offset by about $1.25/gallon decrease in gasoline prices, or about 7/kWh increase in electricity prices. This also means that the impact of a $1/gallon decrease in gasoline prices can be offset by about 5/kWh decrease in electricity prices.

Lin, Zhenhong [ORNL

2012-01-01T23:59:59.000Z

343

Ionizing-Radiation-Induced Color Centers in YAG, Nd:YAG, and Cr:Nd:YAG: Developing and Analyzing a Radiation-Hard Laser Gain Medium .  

E-Print Network (OSTI)

??This report presents results from a series of experiments in which YAG samples (undoped, as well as doped with Nd and Cr3+) were exposed to… (more)

Glebov, Boris L.

2010-01-01T23:59:59.000Z

344

Aqueous chemical growth of alpha-Fe2O3-alpha-Cr203 nanocompositethin films  

DOE Green Energy (OSTI)

We are reporting here on the inexpensive fabrication and optical properties of an iron(III) oxide chromium(III) oxide nanocomposite thin film of corundum crystal structure. Its novel and unique-designed architecture consists of uniformed, well-defined and oriented nanorods of Hematite (alpha-Fe2O3) of 50 nm in diameter and 500nm in length and homogeneously distributed nonaggregated monodisperse spherical nanoparticles of Eskolaite (alpha-Cr2O3) of 250 nm in diameter. This alpha-Fe2O3 alpha-Cr2O3 nanocomposite thin film is obtained by growing, directly onto transparent polycrystalline conducting substrate, an oriented layer of hematite nanorods and growing subsequently, the eskolaite layer. The synthesis is carried out by a template-free, low-temperature, multilayer thin film coating process using aqueous solution of metal salts as precursors. Almost 100 percent of the light is absorbed by the composite film between 300 and 525 nm and 40 percent at 800 nm which yields great expectations as photoanode materials for photovoltaic cells and photocatalytic devices.

Vayssieres, Lionel; Guo, Jinghua; Nordgren, Joseph

2001-06-30T23:59:59.000Z

345

Microstructure control for high strength 9Cr ferritic-martensitic steels  

SciTech Connect

Ferritic-martensitic (F-M) steels with 9 wt.%Cr are important structural materials for use in advanced nuclear reactors. Alloying composition adjustment, guided by computational thermodynamics, and thermomechanical treatment (TMT) were employed to develop high strength 9Cr F-M steels. Samples of four heats with controlled compositions were subjected to normalization and tempering (N&T) and TMT, respectively. Their mechanical properties were assessed by Vickers hardness and tensile testing. Ta-alloying showed significant strengthening effect. The TMT samples showed strength superior to the N&T samples with similar ductility. All the samples showed greater strength than NF616, which was either comparable to or greater than the literature data of the PM2000 oxide-dispersion-strengthened (ODS) steel at temperatures up to 650 C without noticeable reduction in ductility. A variety of microstructural analyses together with computational thermodynamics provided rational interpretations on the strength enhancement. Creep tests are being initiated because the increased yield strength of the TMT samples is not able to deduce their long-term creep behavior.

Tan, Lizhen [ORNL; Hoelzer, David T [ORNL; Busby, Jeremy T [ORNL; Sokolov, Mikhail A [ORNL; Klueh, Ronald L [ORNL

2012-01-01T23:59:59.000Z

346

Relationships between processing, microstructure, and properties of a Co-Cr-Mo alloy  

SciTech Connect

STELLITE alloy No. 21 was produced via rapid solidification processing (RSP) in a variety of particulate morphologies (coarse and fine powder, flakes, fibers, and ribbons). The various RSP forms showed similar, fine microstructures with only a slight difference in the scale of the microstructural features. These RSP particulates were consolidated by extrusion, dynamic compaction, and rapid omnidirectional compaction (ROC) at two processing temperatures (1077/sup 0/C and 1121/sup 0/C). Dynamic compaction proved to be unacceptable for this alloy because of non-uniform porosity and the inability to develop a metallurgical bond between particulates. A plot of elongation versus yield strength depicted two yield strength/ductility relationships for the Co-Cr-Mo type alloys. As-ROC'd samples had a low yield strength/ductility relationship. Atomized powder size also affected the strength/ductility relationships of the extruded products. Decreasing powder size increased ductility without effecting yield strength. Processing temperature did not affect the yield strength/ductility relationship. Electrochemical polarization tests were not successful in delineating fine differences between the various types of Co-Cr-Mo alloy while immersion-pitting temperature tests were capable of distinguishing between samples processed from fine and coarse powders. These materials proved susceptible to stress corrosion cracking (SCC) in boiling 30% MgCl/sub 2/.

Anand, V.; Hickl, A.J.; Kumar, P.; Boeck, B.A.; Sanders, T.H. Jr.

1984-01-01T23:59:59.000Z

347

Oxidation Resistant, Cr Retaining, Electrically Conductive Coatings on Metallic Alloys for SOFC Interconnects  

DOE Green Energy (OSTI)

This report describes significant results from an on-going, collaborative effort to enable the use of inexpensive metallic alloys as interconnects in planar solid oxide fuel cells (SOFCs) through the use of advanced coating technologies. Arcomac Surface Engineering, LLC, under the leadership of Dr. Vladimir Gorokhovsky, is investigating filtered-arc and filtered-arc plasma-assisted hybrid coating deposition technologies to promote oxidation resistance, eliminate Cr volatility, and stabilize the electrical conductivity of both standard and specialty steel alloys of interest for SOFC metallic interconnect (IC) applications. Arcomac has successfully developed technologies and processes to deposit coatings with excellent adhesion, which have demonstrated a substantial increase in high temperature oxidation resistance, stabilization of low Area Specific Resistance values and significantly decrease Cr volatility. An extensive matrix of deposition processes, coating compositions and architectures was evaluated. Technical performance of coated and uncoated sample coupons during exposures to SOFC interconnect-relevant conditions is discussed, and promising future directions are considered. Cost analyses have been prepared based on assessment of plasma processing parameters, which demonstrate the feasibility of the proposed surface engineering process for SOFC metallic IC applications.

Vladimir Gorokhovsky

2008-03-31T23:59:59.000Z

348

Ab initio study on noncompensated CrO codoping of GaN for enhanced solar energy conversion  

SciTech Connect

We describe a novel photocatalyst obtained by codoping GaN with CrO, according to a new "noncompensated" codoping concept based on first-principles calculations. The approach enables controllable narrowing of the GaN band gap with significantly enhanced carrier mobility and photocatalytic activity in the visible light region and thus offers immense potential for application in solar energy conversion, water splitting, and a variety of solar-assisted photocatalysis. Our calculations indicate that the formation energy for the cation doping is greatly reduced by noncompensated codoping with an anion. Although Cr doping alone can split the band gap with the formation of an intermediate band, the mobility is low due to carrier trapping by the localized states. The first-principles calculations also demonstrate that CrO codoping of GaN shifts the Fermi level into the conduction band resulting in high carrier density and mobility.

Pan, Hui [ORNL; Gu, Baohua [ORNL; Eres, Gyula [ORNL; Zhang, Zhenyu [ORNL

2010-03-01T23:59:59.000Z

349

Development of a New Class of Fe-3Cr-W(V) Ferritic Steels for Industrial Process Applications  

SciTech Connect

The project described in this report dealt with improving the materials performance and fabrication for hydrotreating reactor vessels, heat recovery systems, and other components for the petroleum and chemical industries. These reactor vessels can approach ship weights of about 300 tons with vessel wall thicknesses of 3 to 8 inches. They are typically fabricated from Fe-Cr-Mo alloy steels, containing 1.25 to 12% chromium and 1 to 2% molybdenum. The goal of this project was to develop Fe-Cr-W(V) steels that can perform similar duties, in terms of strength at high temperatures, but will weigh less and thereby save energy.

Jawad, Mann; Sikka, Vinod K.

2005-04-06T23:59:59.000Z

350

Processing of LaCrO{sub 3} for solid oxide fuel cell applications. April 1994--April 1995  

DOE Green Energy (OSTI)

A 5-yr program has the objectives of developing LaCrO{sub 3}-based interconnect powders which densify when in contact with anode and cathode materials for solid oxide fuel cells and developing high- performance cathodes, anodes, and interfaces for planar SOFCs. This report is divided into LaCrO{sub 3} sintering studies and SOFC performance studies. Major achievements during the past year included: Developing processing skills for fabricating single cells, incorporating a Pt reference electrode into the electrolyte for separating electrode effects, developing processing-microstructure- property relations for a number of anodes, and developing experimental techniques for measuring cell performance.

Huebner, W.; Anderson, H.U.

1995-07-01T23:59:59.000Z

351

Recyclable transmission line (RTL) and linear transformer driver (LTD) development for Z-pinch inertial fusion energy (Z-IFE) and high yield.  

DOE Green Energy (OSTI)

Z-Pinch Inertial Fusion Energy (Z-IFE) complements and extends the single-shot z-pinch fusion program on Z to a repetitive, high-yield, power plant scenario that can be used for the production of electricity, transmutation of nuclear waste, and hydrogen production, all with no CO{sub 2} production and no long-lived radioactive nuclear waste. The Z-IFE concept uses a Linear Transformer Driver (LTD) accelerator, and a Recyclable Transmission Line (RTL) to connect the LTD driver to a high-yield fusion target inside a thick-liquid-wall power plant chamber. Results of RTL and LTD research are reported here, that include: (1) The key physics issues for RTLs involve the power flow at the high linear current densities that occur near the target (up to 5 MA/cm). These issues include surface heating, melting, ablation, plasma formation, electron flow, magnetic insulation, conductivity changes, magnetic field diffusion changes, possible ion flow, and RTL mass motion. These issues are studied theoretically, computationally (with the ALEGRA and LSP codes), and will work at 5 MA/cm or higher, with anode-cathode gaps as small as 2 mm. (2) An RTL misalignment sensitivity study has been performed using a 3D circuit model. Results show very small load current variations for significant RTL misalignments. (3) The key structural issues for RTLs involve optimizing the RTL strength (varying shape, ribs, etc.) while minimizing the RTL mass. Optimization studies show RTL mass reductions by factors of three or more. (4) Fabrication and pressure testing of Z-PoP (Proof-of-Principle) size RTLs are successfully reported here. (5) Modeling of the effect of initial RTL imperfections on the buckling pressure has been performed. Results show that the curved RTL offers a much greater buckling pressure as well as less sensitivity to imperfections than three other RTL designs. (6) Repetitive operation of a 0.5 MA, 100 kV, 100 ns, LTD cavity with gas purging between shots and automated operation is demonstrated at the SNL Z-IFE LTD laboratory with rep-rates up to 10.3 seconds between shots (this is essentially at the goal of 10 seconds for Z-IFE). (7) A single LTD switch at Tomsk was fired repetitively every 12 seconds for 36,000 shots with no failures. (8) Five 1.0 MA, 100 kV, 100 ns, LTD cavities have been combined into a voltage adder configuration with a test load to successfully study the system operation. (9) The combination of multiple LTD coaxial lines into a tri-plate transmission line is examined. The 3D Quicksilver code is used to study the electron flow losses produced near the magnetic nulls that occur where coax LTD lines are added together. (10) Circuit model codes are used to model the complete power flow circuit with an inductive isolator cavity. (11) LTD architectures are presented for drivers for Z-IFE and high yield. A 60 MA LTD driver and a 90 MA LTD driver are proposed. Present results from all of these power flow studies validate the whole LTD/RTL concept for single-shot ICF high yield, and for repetitive-shot IFE.

Sharpe, Robin Arthur; Kingsep, Alexander S. (Kurchatov Institute, Moscow, Russia); Smith, David Lewis; Olson, Craig Lee; Ottinger, Paul F. (Naval Research Laboratory, Washington, DC); Schumer, Joseph Wade (Naval Research Laboratory, Washington, DC); Welch, Dale Robert (Voss Scientific, Albuquerque, NM); Kim, Alexander (High Currents Institute, Tomsk, Russia); Kulcinski, Gerald L. (University of Wisconsin, Madison, WI); Kammer, Daniel C. (University of Wisconsin, Madison, WI); Rose, David Vincent (Voss Scientific, Albuquerque, NM); Nedoseev, Sergei L. (Kurchatov Institute, Moscow, Russia); Pointon, Timothy David; Smirnov, Valentin P. (Kurchatov Institute, Moscow, Russia); Turgeon, Matthew C.; Kalinin, Yuri G. (Kurchatov Institute, Moscow, Russia); Bruner, Nichelle "Nicki" (Voss Scientific, Albuquerque, NM); Barkey, Mark E. (University of Alabama, Tuscaloosa, AL); Guthrie, Michael (University of Wisconsin, Madison, WI); Thoma, Carsten (Voss Scientific, Albuquerque, NM); Genoni, Tom C. (Voss Scientific, Albuquerque, NM); Langston, William L.; Fowler, William E.; Mazarakis, Michael Gerrassimos

2007-01-01T23:59:59.000Z

352

Effects of Cr-Mo Infiltration Source Structure on the Thickness of Alloy Layer by Double Glow Plasma Surface Metallurgy Technology  

Science Conference Proceedings (OSTI)

To strengthen the growth characteristics of layer on Q235 steel, a new source structure of Cr-Mo infiltration was proposed by plasma surface metallurgy technology. Comparative experiments were carried out on source polar of scrubbing brush structure ... Keywords: Surface alloying, Cr-Mo infiltrated, Plasma surface metallurgy technology, Thickness of layer

Jinyong Xu; Jingchun Zhang; Yajuan Liu; Cheng Gao

2010-03-01T23:59:59.000Z

353

Audit Report: CR-B-98-02 | Department of Energy  

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

2 2 Audit Report: CR-B-98-02 November 14, 1997 Audit of Management of the Laboratory Directed Research and Development Program at the Lawrence Livermore National Laboratory The Department's national laboratories, since their establishment, have been permitted to conduct a limited amount of discretionary research activities. The Department's Defense Program laboratories, such as the Lawrence Livermore National Laboratory, generate funding for Laboratory Directed Research and Development (LDRD) programs by charging their total laboratory operating and capital equipment budgets a flat surcharge of up to 6 percent. The ceiling was mandated by the Congress in authorization legislation. This audit was performed to determine whether the LDRD program at Lawrence Livermore was managed in accordance with applicable laws and

354

Audit Report: CR-B-98-01 | Department of Energy  

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

1 1 Audit Report: CR-B-98-01 October 8, 1997 Audit of the Internal Control Structure of the Department of Energy's Working Capital Fund The Subcommittee on Energy and Water Development of the Committee on Appropriations, in its report dated July 16, 1996, approved the implementation of a Working Capital Fund (Fund) at the U.S. Department of Energy. The Subcommittee also directed the Office of Inspector General to conduct periodic audits of the Fund. This audit was conducted to determine if the Department established an effective system of controls over the Fund. Our specific objectives were to determine if internal controls were sufficient to ensure that appropriate costs were allocated in a reasonable and unbiased manner and in a way that was consistent with the expectations

355

Audit Report: CR-B-98-01 | Department of Energy  

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

1 1 Audit Report: CR-B-98-01 October 8, 1997 Audit of the Internal Control Structure of the Department of Energy's Working Capital Fund The Subcommittee on Energy and Water Development of the Committee on Appropriations, in its report dated July 16, 1996, approved the implementation of a Working Capital Fund (Fund) at the U.S. Department of Energy. The Subcommittee also directed the Office of Inspector General to conduct periodic audits of the Fund. This audit was conducted to determine if the Department established an effective system of controls over the Fund. Our specific objectives were to determine if internal controls were sufficient to ensure that appropriate costs were allocated in a reasonable and unbiased manner and in a way that was consistent with the expectations

356

Audit Report: CR-B-97-01 | Department of Energy  

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

1 1 Audit Report: CR-B-97-01 October 22, 1997 Audit of Department of Energy's Warehouse Space The downsizing of Department of Energy (Department) facilities as a result of the end of the Cold War may have a negative impact on many communities that were heavily dependent on Departmental operations for economic stability. To lessen the negative effects on these communities, the Department has encouraged the formation of local community reuse organizations. These organizations determine and sponsor economic development initiatives to offset the local consequences of the Department's downsizing. The Department provided financial assistance to these organizations through grants and cooperative agreements. We initiated this audit to determine whether economic development grants and

357

The influence of temperature on the color of TiO{sub 2}:Cr pigments  

Science Conference Proceedings (OSTI)

TiO{sub 2}:Cr brown pigments were prepared via a polymeric precursor derived from the Pechini method. The pigments were analyzed by infrared spectroscopy, X-ray diffraction, ultraviolet-vis spectroscopy, and colorimetry. The increase of the calcination temperature from 700 to 1000 deg. C led to a decrease in the L* values, corresponding to darkening of the pigments. The pigments obtained in this work are darker than those produced by a solid-state reaction method reported before. The change in the pigment color is due to the anatase-rutile phase transition, which leads to a shift in the charge transfer bond (Ti{sup 4+} {r_reversible} O{sup 2-}) due to a change in the crystal field around the chromophore ions. Moreover, the oxidation state of chromium was observed to change, and this also alters the color of the pigments.

Gomes Vieira, Fagner Ticiano; Silva Melo, Danniely [LACOM, Departamento de Quimica, Centro de Ciencias Exatas e da Natureza, Universidade Federal da Paraiba, Cidade Universitaria, Campus I, CEP:58059 900, Joao Pessoa, PB (Brazil); Jackson Guedes de Lima, Severino [LSR, Departamento de Engenharia Mecanica, Universidade Federal da Paraiba, Joao Pessoa, PB (Brazil); Longo, Elson [CMDMC-LIEC, Instituto de Quimica, Universidade Estadual Paulista, Araraquara, SP (Brazil); Paskocimas, Carlos Alberto [Departamento de Engenharia Mecanica, Universidade Federal do Rio Grande do Norte, Natal, RN (Brazil); Silva Junior, Wilson [Icra Produtos para Ceramica, Mogi Guacu, SP (Brazil); Gouveia de Souza, Antonio [LACOM, Departamento de Quimica, Centro de Ciencias Exatas e da Natureza, Universidade Federal da Paraiba, Cidade Universitaria, Campus I, CEP:58059 900, Joao Pessoa, PB (Brazil); Garcia dos Santos, Ieda Maria [LACOM, Departamento de Quimica, Centro de Ciencias Exatas e da Natureza, Universidade Federal da Paraiba, Cidade Universitaria, Campus I, CEP:58059 900, Joao Pessoa, PB (Brazil)], E-mail: ieda@quimica.ufpb.br

2009-05-06T23:59:59.000Z

358

Thermodynamic modeling and experimental validation of the Fe-Al-Ni-Cr-Mo alloy system  

SciTech Connect

NiAl-type precipitate-strengthened ferritic steels have been known as potential materials for the steam turbine applications. In this study, thermodynamic descriptions of the B2-NiAl type nano-scaled precipitates and body-centered-cubic (BCC) Fe matrix phase for four alloys based on the Fe-Al-Ni-Cr-Mo system were developed as a function of the alloy composition at the aging temperature. The calculated phase structure, composition, and volume fraction were validated by the experimental investigations using synchrotron X-ray diffraction and atom probe tomography. With the ability to accurately predict the key microstructural features related to the mechanical properties in a given alloy system, the established thermodynamic model in the current study may significantly accelerate the alloy design process of the NiAl-strengthened ferritic steels.

Teng, Zhenke [ORNL; Zhang, F [CompuTherm LLC, Madison, WI; Miller, Michael K [ORNL; Liu, Chain T [Hong Kong Polytechnic University; Huang, Shenyan [ORNL; Chou, Y.T. [Multi-Phase Services Inc., Knoxville; Tien, R [Multi-Phase Services Inc., Knoxville; Chang, Y A [ORNL; Liaw, Peter K [University of Tennessee, Knoxville (UTK)

2012-01-01T23:59:59.000Z

359

Sliding wear, toughness and microstructural relationships in high strength Fe/Cr/C experimental steels  

Science Conference Proceedings (OSTI)

Hardness has been believed to be the major parameter influencing wear resistance of materials. Recently, it was suggested that combinations of high strength and toughness may lead to optimum wear resistance. It is known that the martensite transformation can be exploited to provide a variety of strength-toughness combinations. Small additions of Mn or Ni to the Fe/4Cr/.3C martensitic alloys have been shown to increase toughness while maintaining strength via increasing the volume fraction of retained austenite. An investigation of the relationships between microstructure, toughness, and sliding wear resistance for these experimental alloys is reported. Comparative studies were performed on several industrial alloys to provide a practical basis for comparison of these medium carbon experimental steels.

Salesky, W.J.

1980-06-01T23:59:59.000Z

360

L-shell photoabsorption spectroscopy for solid metals: Ti, V, Cr, Fe, Ni, Cu  

Science Conference Proceedings (OSTI)

Synchrotron radiation measurements of near-threshold and broad-range (400--1500 eV) absolute photoabsorption cross sections were made for five transition metals with {plus minus}10% overall uncertainties. Fine structure details of 2p-3d autoionizing resonances are shown with better than 1.0 eV resolution for solid metals: Ti, V, Cr, Fe, Ni, and Cu. Fine structure similar to what we measured can be produced using a multi-configuration Dirac Fock (MCDF) model if a statistical distribution is assumed for the initial atomic states. Calculations were performed in intermediate coupling with configuration interactions by Mau H. Chen. The results are compared with other experimental work and theoretical methodologies. 18 refs., 7 figs.

Del Grande, N.K. (Lawrence Livermore National Lab., CA (USA))

1989-09-13T23:59:59.000Z

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361

Hydrogen Release from Irradiated Vanadium Alloy V-4Cr-4Ti  

DOE Green Energy (OSTI)

The present work is an attempt to obtain data concerning the influence of neutron and ? irradiation upon hydrogen retention in V-4Cr-4Ti vanadium alloy. The experiments on in-pile loading of vanadium alloy specimens at the neutron flux density 1014 n/cm2s, hydrogen pressure of 80 Pa, and temperatures of 563, 613, and 773 K were carried out using the IVG.1M reactor of the Kazakhstan National Nuclear Center. A preliminary set of loading/degassing experiments with non-irradiated material has been carried out to obtain data on hydrogen interaction with vanadium alloy. The, data presented in this work are related both to non-irradiated and irradiated samples.

Klepikov, A. Kh.; Romanenko, O. G.; Chikhray, E. V.; Tazhibaeva, I. L.; Shestakov, V. P.; Longhurst, Glen Reed

1999-09-01T23:59:59.000Z

362

Interferometric measurement of melt depth in silicon using femtosecond infrared Cr:forsterite laser  

SciTech Connect

Interferometric microscopy technique combined with high power infrared Cr:forsterite laser system was applied to investigate femtosecond laser induced melting of silicon. Optically polished wafer of single crystalline silicon of 400 {mu}m thickness was irradiated with 100 fs pump pulses at second harmonic wavelength of 620 nm. We used infrared probe pulses at main wavelength of 1240 nm, whose photon energy was less than the band gap width E{sub g} = 1.12eV of silicon, and the penetration depth of probe essentially exceeded the sample thickness. Unlike many previous experiments with Ti:sapphire lasers it allowed us to probe the heated area from the rear side of the sample and obtain the data on melt depth after laser irradiation.

Ashitkov, Sergey I.; Ovchinnikov, Andrey V.; Agranat, Mikhail B. [Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, 125412 (Russian Federation)

2012-07-30T23:59:59.000Z

363

Bose-Einstein condensation of triplons in Ba3Cr2O8  

SciTech Connect

By performing heat capacity, magnetocaloric effect, torque magnetometry and force magnetometry measurements up to 33 T, we have mapped out the T-H phase diagram of the S = 1/2 spin dimer compound Ba{sub 3}Cr{sub 2}O{sub 8}. We found evidence for field-induced magnetic order between H{sub cl} = 12.52(2) T and H{sub c2} = 23.65(5) T, with the maximum transition temperature T{sub c} {approx} 2.7 K at H {approx} 18 T. The lower transition can likely be described by Bose-Einstein condensation of triplons theory, and this is consistent with the absence of any magnetization plateaus in our magnetic torque and force measurements. In contrast, the nature of the upper phase transition appears to be quite different as our measurements suggest that this transition is actually first order.

Jaime, Marcelo [Los Alamos National Laboratory; Kohama, Y [Los Alamos National Laboratory; Aczel, A [MCMASTER UNIV; Ninios, K [UNIV OF FL; Chan, H [UNIV OF FL; Balicas, L [NHMFL; Dabkowska, H [MCMASTER UNIV; Like, G [MCMASTER UNIV

2009-01-01T23:59:59.000Z

364

Microstructural characterization of as-cast biocompatible Co-Cr-Mo alloys  

SciTech Connect

The microstructure of a cobalt-base alloy (Co-Cr-Mo) obtained by the investment casting process was studied. This alloy complies with the ASTM F75 standard and is widely used in the manufacturing of orthopedic implants because of its high strength, good corrosion resistance and excellent biocompatibility properties. This work focuses on the resulting microstructures arising from samples poured under industrial environment conditions, of three different Co-Cr-Mo alloys. For this purpose, we used: 1) an alloy built up from commercial purity constituents, 2) a remelted alloy and 3) a certified alloy for comparison. The characterization of the samples was achieved by using optical microscopy (OM) with a colorant etchant to identify the present phases and scanning electron microscopy (SE-SEM) and energy dispersion spectrometry (EDS) techniques for a better identification. In general the as-cast microstructure is a Co-fcc dendritic matrix with the presence of a secondary phase, such as the M{sub 23}C{sub 6} carbides precipitated at grain boundaries and interdendritic zones. These precipitates are the main strengthening mechanism in this type of alloys. Other minority phases were also reported and their presence could be linked to the cooling rate and the manufacturing process variables and environment. - Research Highlights: {yields}The solidification microstructure of an ASTM-F75 type alloy were studied. {yields}The alloys were poured under an industrial environment. {yields}Carbides and sigma phase identified by color metallography and scanning microscopy (SEM and EDS). {yields}Two carbide morphologies were detected 'blocky type' and 'pearlite type'. {yields}Minority phases were also detected.

Giacchi, J.V., E-mail: jgiacchi@exa.unicen.edu.ar [Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Av. Rivadavia 1917, C1033AAJ Buenos Aires (Argentina); Instituto de Fisica de Materiales Tandil (IFIMAT-FCE-CICPBA) Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399 B7000GHG Tandil (Argentina); Morando, C.N.; Fornaro, O. [Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Av. Rivadavia 1917, C1033AAJ Buenos Aires (Argentina); Instituto de Fisica de Materiales Tandil (IFIMAT-FCE-CICPBA) Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399 B7000GHG Tandil (Argentina); Palacio, H.A. [Comision de Investigaciones Cientificas de la Provincia de Buenos Aires (CICPBA), Calle 526 e/10 y 11 B1096APP La Plata (Argentina); Instituto de Fisica de Materiales Tandil (IFIMAT-FCE-CICPBA) Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399 B7000GHG Tandil (Argentina)

2011-01-15T23:59:59.000Z

365

The Impact of Weld Metal Creep Strength on the Overall Creep Strength of 9% Cr Steel Weldments  

E-Print Network (OSTI)

In this work, three joints of a X11CrMoWVNb9-1-1 (P911) pipe were welded with three filler metals by conventional arc welding. The filler metals varied in creep strength level, so that one overmatched, one undermatched, ...

Mayr, Peter

366

diff -crN oommf11b2/app/mmdisp/scripts/avf2ppm.tcl oommf ...  

Science Conference Proceedings (OSTI)

diff -crN oommf11b2/app/mmdisp/scripts/avf2ppm.tcl oommf/app/mmdisp/scripts/ avf2ppm.tcl *** oommf11b2/app/mmdisp/scripts/avf2ppm.tcl Wed ...

2011-06-03T23:59:59.000Z

367

Cyclic nanoindentation studies on CrN thin films prepared by RF sputtering on Zr-based metallic glass  

Science Conference Proceedings (OSTI)

Cyclic nanoindentation tests were carried out to study the influence of the chromium nitride thin films on the mechanical properties of Zr-based metallic glass. Chromium nitride thin coatings have been deposited on Zr{sub 50}Cu{sub 40}Al{sub 10} metallic glass substrate by RF sputtering. The deposition process was done at room temperature under nitrogen reactive gas using a metallic chromium target. The CrN films have a thickness of 300 nm. Several cyclic nanoindentation measurements were conducted on CrN films and Zr{sub 50}Cu{sub 40}Al{sub 10} metallic glass substrate samples at various loading rate values. We have found that the coated metallic glass sample shows high mechanical properties such as hardness and reduced elastic modulus. Cyclic nanoindentation results show a hardening behaviour for these CrN coatings. Moreover, the CrN coated on Zr-based metallic glass was found to have a high value of resistance to crack propagation, as being analysed through the SEM pictures of the residual Vickers indentation impressions.

Jellad, A.; Benameur, T. [Laboratoire de Genie Mecanique LGM-MA05, ENIM, Av. Ibn El Jazzar, 5019 Monastir (Tunisia); Labdi, S. [Laboratoire d'etudes des Milieux Nanometriques, UEVE, Bd F. Mitterand, 91025 Evry Cedex (France)

2011-01-17T23:59:59.000Z

368

Influence of alloy content and a cerium surface treatment on the oxidation behavior of Fe-Cr ferritic stainless steels  

SciTech Connect

The cost of solid oxide fuel cells (SOFC) can be significantly reduced by using interconnects made from ferritic stainless steels. In fact, several alloys have been developed specifically for this application (Crofer 22APU and Hitachi ZMG323). However, these steels lack environmental stability in SOFC environments, and as a result, degrade the performance of the SOFC. A steel interconnect can contribute to performance degradation through: (i) Cr poisoning of electrochemically active sites within the cathode; (ii) formation of non-conductive oxides, such as SiO2 or Al2O3 from residual or minor alloying elements, at the base metal-oxide scale interface; and/or (iii) excessive oxide scale growth, which may also retard electrical conductivity. Consequently, there has been considerable attention on developing coatings to protect steel interconnects in SOFC environments and controlling trace elements during alloy production. Recently, we have reported on the development of a Cerium surface treatment that improves the oxidation behavior of a variety alloys, including Crofer 22APU [1-5]. Initial results indicated that the treatment may improve the performance of Crofer 22APU for SOFC application by: (i) retarding scale growth resulting in a thinner oxide scale; and (ii) suppressing the formation of a deleterious continuous SiO2 layer that can form at the metal-oxide scale interface in materials with high residual Si content [5]. Crofer 22 APU contains Fe-22Cr-0.5Mn-0.1Ti (weight percent). Depending on current market prices and the purity of raw materials utilized for ingot production, Cr can contribute upwards of 90 percent of the raw materials cost. The present research was undertaken to determine the influence of Cr content and minor element additions, especially Ti, on the effectiveness of the Ce surface treatment. Particular emphasis is placed on the behavior of low Cr alloys.

Alman, D.E.; Jablonski, P.D.

2006-01-01T23:59:59.000Z

369

Search for pentaquark partners [Theta]??, [Sigma]? and N? in H (e,e'K [pi])) X reactions at Jefferson Lab Hall A  

E-Print Network (OSTI)

In 1997, D. Diakonov et al. using a soliton model predicted a SU(3)F flavor antide-cuplet of pentaquarks. The most striking prediction using this symmetry group is a narrow exotic state, E+(1540), which has quark component ...

Qiang, Yi, Ph. D. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

370

A Polysilicon Active Matrix Organic Light Emitting Diode Display with Integrated Drivers R.M.A. Dawson, Z. Shen, D.A. Furst, S. Connor, J. Hsu, M.G. Kane, R.G. Stewart, A. Ipri  

E-Print Network (OSTI)

A Polysilicon Active Matrix Organic Light Emitting Diode Display with Integrated Drivers R.S.A. Abstract The design of an active matrix organic light emitting diode (AMOLED) display using a polysilicon. Introduction Organic light emitting diodes (OLEDs) are presently of great interest due to their potential

371

Microstructural evolution during solution treatment of Co-Cr-Mo-C biocompatible alloys  

SciTech Connect

Three different Co-Cr-Mo-C alloys conforming to ASTM F75 standard were poured in an industrial environment and subjected to a conventional solution treatment at 1225 Degree-Sign C for several time intervals. The microstructural changes and transformations were studied in each case in order to evaluate the way in which treatment time influences the secondary phase fraction and clarify the microstructural changes that could occur. To assess how treatment time affects microstructure, optical microscopy and image analyzer software, scanning electron microscopy and energy dispersion spectrometry analysis were employed. The main phases detected in the as-cast state were: {sigma}-phase, M{sub 6}C, and M{sub 23}C{sub 6} carbides. The latter presented two different morphologies, blocky type and lamellar type. Despite being considered the most detrimental feature to mechanical properties, {sigma}-phase and lamellar carbides dissolution took place in the early stages of solution treatment. M{sub 23}C{sub 6} carbides featured two different behaviors. In the alloy obtained by melting an appropriate quantity of alloyed commercial materials, a decrease in size, spheroidization and transformation into M{sub 6}C carbides were simultaneously observed. In the commercial ASTM F75 alloy, in turn, despite being the same phase, only a marked decrease in precipitates size was noticed. These different behaviors could be ascribed to the initial presence of other phases in the alloy obtained from alloyed materials, such as {sigma}-phase and 'pearlitic' carbides, or to the initial precipitate size which was much larger in the first than in the commercial ASTM F75 alloy studied. M{sub 6}C carbides dissolved directly in the matrix as they could not be detected in samples solution-treated for 15 min. - Highlights: Black-Right-Pointing-Pointer Three different Co-Cr-Mo alloys were poured under an industrial environment. Black-Right-Pointing-Pointer Transformation of existing phases followed during conventional solution treatment. Black-Right-Pointing-Pointer In as-cast/treated samples, phases were identified by color metallography, SEM and EDS. Black-Right-Pointing-Pointer M{sub 23}C{sub 6} {yields} M{sub 6}C transformation was corroborated by SEM and EDS analysis. Black-Right-Pointing-Pointer Carbide spheroidization was also detected prior a noticeably carbide size decreasing.

Giacchi, J.V., E-mail: jgiacchi@exa.unicen.edu.ar [IFIMAT, Instituto de Fisica de Materiales Tandil, Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399, B7000GHG Tandil (Argentina); Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Av. Rivadavia 1917, C1033AA, Buenos Aires (Argentina); Fornaro, O. [IFIMAT, Instituto de Fisica de Materiales Tandil, Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399, B7000GHG Tandil (Argentina); Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Av. Rivadavia 1917, C1033AA, Buenos Aires (Argentina); Palacio, H. [IFIMAT, Instituto de Fisica de Materiales Tandil, Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399, B7000GHG Tandil (Argentina); Comision de Investigaciones Cientificas de la Provincia de Buenos Aires (CICPBA), Calle 526 e/10 y 11, B1096APP, La Plata (Argentina)

2012-06-15T23:59:59.000Z

372

Nature of =~SiOCrO(2)CI And (=~SiO)(2)CrO(2) Sites Prepared By Grafting CrO(2)CI(2) Onto Silica  

SciTech Connect

The room-temperature reaction between chromyl chloride and Sylopol 952 silicas pretreated at 200, 450, and 800 C was investigated using IR, XANES, and EXAFS spectroscopy, as well as by DFT modeling. On the silicas pretreated at 200 and 450 C, the structurally uniform sites formed by the reaction with one surface hydroxyl group are described as {triple_bond}SiOCrO{sub 2}Cl. Unreacted silanols persist on these silicas even in the presence of excess CrO{sub 2}Cl{sub 2}, and on the silica pretreated at 200 C some participate in hydrogen bonding with the grafted monochlorochromate sites. On the silica pretreated at 800 C, both {triple_bond}SiOCrO{sub 2}Cl and ({triple_bond}SiO){sub 2}CrO{sub 2} sites are formed. The latter are produced despite the absence of hydrogen-bonded hydroxyl pairs on the support. The origin of the chromate sites is proposed to be the reaction between CrO{sub 2}Cl{sub 2} and hydroxyl-substituted siloxane 2-rings. These rings are likely formed at 800 C by condensation between a pair of vicinal silanols in which one of the silanols is also a member of a geminal pair.

Demmelmaier, C.A.; White, R.E.; Bokhoven, J.A.van; Scott, S.L.

2009-05-14T23:59:59.000Z

373

Factors Affecting the Hydrogen Embrittlement Resistance of Ni-Cr-Mn-Nb Welds  

DOE Green Energy (OSTI)

Nickel based alloys are often welded with argon/hydrogen shielding gas mixtures to minimize oxidation and improve weld quality. However, shielding gas mixtures with {ge} 1% hydrogen additions can result in hydrogen concentrations greater than 5 wt. ppm in the weld metal and reduce ductility via hydrogen embrittlement. For the conditions investigated, the degree of hydrogen embrittlement is highly variable between 5 and 14 wt. ppm. investigation of hydrogen embrittlement of EN82H GTAW welds via tensile testing, light microscopy, transmission electron microscopy, orientation imaging microscopy, and thermal desorption spectroscopy shows that this variability is due to the inhomogeneous microstructure of the welds, the presence of recrystallized grains, and complex residual plastic strains. Specifically, research indicates that high residual strains and hydrogen trapping lower the ductility of Ni-Cr-Mn-Nb weld metal when dissolved hydrogen concentrations are greater than 5 wt. ppm. The inhomogeneous microstructure contains columnar dendritic, cellular dendritic, and recrystallized grains. The decreased tensile ductility observed in embrittled samples is recovered by post weld heat treatments that decrease the bulk hydrogen concentration below 5 wt. ppm.

G.A. Young; C.K. Battige; N. Liwis; M.A. Penik; J. Kikel; A.J. Silvia; C.K. McDonald

2001-03-18T23:59:59.000Z

374

Overview of a Welding Development Program for a Ni-Cr-Mo-Gd Alloy  

Science Conference Proceedings (OSTI)

The National Spent Nuclear Fuel Program (NSNFP), located at the Idaho National Laboratory, coordinates and integrates management and disposal of U.S. Department of Energy-owned spent nuclear fuel. These management functions include using the DOE standardized canister for packaging, storage, treatment, transport, and long-term disposal in the Yucca Mountain Repository. Nuclear criticality must be prevented in the postulated event where a waste package is breached and water (neutron moderator) is introduced into the waste package. Criticality control will be implemented by using a new, weldable, corrosion-resistant, neutron-absorbing material to fabricate the welded structural inserts (fuel baskets) that will be placed in the standardized canister. The new alloy is based on the Ni-Cr-Mo alloy system with a gadolinium addition. Gadolinium was chosen as the neutron absorption alloying element because of its high thermal neutron absorption cross section. This paper describes a weld development program to qualify this new material for American Society of Mechanical Engineers (ASME) welding procedures, develop data to extend the present ASME Code Case (unwelded) for welded construction, and understand the weldability and microstructural factors inherent to this alloy.

W. L. Hurt; R. E. Mizia; D. E. Clark

2007-06-01T23:59:59.000Z

375

Modeling solar thermochemical splitting of CO2 using metal oxide and a CR5.  

SciTech Connect

A two-dimensional, multi-physics computational model based on the finite-element method is developed for simulating the process of solar thermochemical splitting of carbon dioxide (CO{sub 2}) using ferrites (Fe{sub 3}O{sub 4}/FeO) and a counter-rotating-ring receiver/recuperator or CR5, in which carbon monoxide (CO) is produced from gaseous CO{sub 2}. The model takes into account heat transfer, gas-phase flow and multiple-species diffusion in open channels and through pores of the porous reactant layer, and redox chemical reactions at the gas/solid interfaces. Results (temperature distribution, velocity field, and species concentration contours) computed using the model in a case study are presented to illustrate model utility. The model is then employed to examine the effects of injection rates of CO{sub 2} and argon neutral gas, respectively, on CO production rate and the extent of the product-species crossover.

Hogan, Roy E., Jr.; Chen, Ken Shuang

2010-05-01T23:59:59.000Z

376

Using CrAIN Multilayer Coatings to Improve Oxidation Resistance of Steel Interconnects for Solid Oxide Fuel Cell Stacks  

Science Conference Proceedings (OSTI)

The requirements of low cost and high-tempurature corrosion resistance for bipolar interconnect plates in solid oxide fuel cell stacks has directed attention to the use of metal plates with oxidation resistant coatings. We have investigatedt he performance of steel plates with multilayer coatings consisting of CrN for electrical conductivity and CrAIN for oxidation resistance. The coatings were deposited usin large area filterd arc deposition technolgy, and subsequently annealed in air for up to 25 hours at 800 degrees celsius. The composition, structer and morphology of the coated plates were characterized using RBS, nuclear reaction analysis, AFM and TEM techniques. By altering the architecture of the layers within the coatings, the rate of oxidation was reduced by more than an order of magnitute. Electrical resistance was measured at room temperature.

Smith, Richard J.; Tripp, C.; Knospe, Anders; Ramana, C. V.; Gorokhovsky, Vladimir I.; Shutthanandan, V.; Gelles, David S.

2004-06-01T23:59:59.000Z

377

Recent progress in nanostructured multiferroic Bi{sub 2}FeCrO{sub 6} thin films  

Science Conference Proceedings (OSTI)

We report the latest progress on the growth and characterization of Bi{sub 2}FeCrO{sub 6} (BFCO), a recently discovered multiferroic system. BFCO thin films and nanostructures exhibit exceptional multiferroic properties at room temperature. The growth of pure BFCO thin films on STO substrates is possible only in a narrow window of deposition parameters (i.e., Oxygen pressure pO{sub 2}=1.2 Multiplication-Sign 10{sup -2} mbar and around a substrate temperature T{sub S}=680 Degree-Sign C). The epitaxial growth stabilizes the metastable single phase of this material and promotes the Fe/Cr cation ordering in both thin films and nanostructures. This cationic ordering which is responsible for good magnetic properties of BFCO is also at the origin of pronounced photovoltaic (PV) properties observed in the epitaxial films grown on STO substrates. The results indicate that the ferroelectric polarization plays a dominant role in the observed PV effect. - Graphical abstract: (Top) Crystal structure of BFCO thin films deposited on (1 1 1)-oriented SrTiO3:Nb substrates and direct evidence of the presence of cationic ordering Fe/Cr in the films. (Bottom) Control of the crystal orientation and the shape of the epitaxial nanostructures by the orientation of the niobium-doped STO substrates. Highlights: Black-Right-Pointing-Pointer Growth optimization of Bi{sub 2}FeCrO{sub 6} (BFCO) thin films and nanostructures by pulsed laser deposition. Black-Right-Pointing-Pointer Ordered BFCO single phase have been stabilized by epitaxial strain. Black-Right-Pointing-Pointer Arbitrary patterns of heteroepitaxial multiferroic BFCO nanostructures have been fabricated by PLD combined with nanostenciling. Black-Right-Pointing-Pointer Experimental characterizations revealed the excellent multiferroic character of BFCO thin films and nanostructures. Black-Right-Pointing-Pointer Unprecedentedly high power conversion efficiency for ferroelectrics was observed in 125 nm-thick highly ordered BFCO films.Graphical abstract legend.

Nechache, Riad, E-mail: Nechache@emt.inrs.ca [NAST Center and Department of Chemical Science and Technology, University of Rome Tor Vergata Via della Ricerca Sceintifica 1, 00133 Rome Italy (Italy); Centre Energie, Materiaux et Telecommunications, INRS, 1650, boulevard Lionel-Boulet, Varennes, Quebec J3x 1S2 (Canada); Rosei, Federico, E-mail: rosei@emt.inrs.ca [Centre Energie, Materiaux et Telecommunications, INRS, 1650, boulevard Lionel-Boulet, Varennes, Quebec J3x 1S2 (Canada)

2012-05-15T23:59:59.000Z

378

Experimental measurement of the persistence of permeability reduction in porous media treated with xanthan/Cr(III) gel systems  

SciTech Connect

This paper reports on a series of long-term experiments that was conducted to determine the persistence of flow resistance in unconsolidated sandpacks treated with xanthum/Cr(III) gels. Gels were prepared with 2,000 ppm xanthum and Cr(III) concentrations from 25 to 200 ppm. These systems exhibit various degrees of swelling or syneresis. The experiments were conducted by first allowing a gel to set up in a sandpack and then continuously flushing the sandpack with brine for up to 4 months at a constant pressure drop of 13.3 psi/ft. Flow rate was monitored to calculate permeability changes with time. Flow experiments indicated that the measurement of swelling and syneresis in bulk-gel tests is not a good predictor of gel response in unconsolidated sandpacks. Excellent permeability reduction was obtained in sandpacks when gels that exhibited 35% to 60% reduction in volume in bulk tests owing to syneresis were used. Gels were most effective at retaining flow resistance in the range of 35 to 75 ppm Cr(III), where the sandpacks regained {lt} 0.1% of their original 4,000 md permeability during the experiments. These observations were supported by experiments in which the pH of the injected brine was varied between 3.0 and 6.5. The swelling tests on the bulk gel indicated that permeability would decrease as pH increased and would increase as pH decreased.

Eggert, R.W. Jr.; Willhite, G.P.; Green, D.W. (Univ. of Kansas (US))

1992-02-01T23:59:59.000Z

379

Cr(VI) adsorption on functionalized amorphous and mesoporous silica from aqueous and non-aqueous media  

Science Conference Proceedings (OSTI)

A mesoporous silica (SBA-15) and amorphous silica (SG) have been chemically modified with 2-mercaptopyridine using the homogeneous route. This synthetic route involved the reaction of 2-mercaptopyridine with 3-chloropropyltriethoxysilane prior to immobilization on the support. The resulting material has been characterized by powder X-ray diffraction, nitrogen gas sorption, FT-IR and MAS NMR spectroscopy, thermogravimetry and elemental analysis. The solid was employed as a Cr(VI) adsorbent from aqueous and non-aqueous solutions at room temperature. The effect of several variables (stirring time, pH, metal concentration and solvent polarity) has been studied using the batch technique. The results indicate that under the optimum conditions, the maximum adsorption value for Cr(VI) was 1.83 {+-} 0.03 mmol/g for MP-SBA-15, whereas the adsorption capacity of the MP-SG was 0.86 {+-} 0.02 mmol/g. On the basis of these results, it can be concluded that it is possible to modify chemically SBA-15 and SG with 2-mercaptopyridine and to use the resulting modified silicas as effective adsorbents for Cr(VI)

Perez-Quintanilla, Damian [Departamento de Quimica Inorganica y Analitica, E.S.C.E.T, Universidad Rey Juan Carlos, C/Tulipan s/n, 28933 Mostoles, Madrid (Spain)]. E-mail: damian.perez@urjc.es; Hierro, Isabel del [Departamento de Quimica Inorganica y Analitica, E.S.C.E.T, Universidad Rey Juan Carlos, C/Tulipan s/n, 28933 Mostoles, Madrid (Spain); Fajardo, Mariano [Departamento de Quimica Inorganica y Analitica, E.S.C.E.T, Universidad Rey Juan Carlos, C/Tulipan s/n, 28933 Mostoles, Madrid (Spain); Sierra, Isabel [Departamento de Quimica Inorganica y Analitica, E.S.C.E.T, Universidad Rey Juan Carlos, C/Tulipan s/n, 28933 Mostoles, Madrid (Spain)]. E-mail: isabel.sierra@urjc.es

2007-08-07T23:59:59.000Z

380

Comparison of Crevice Corrosion of Fe-Based Amorphous Metal and Crystalline Ni-Cr-Mo Alloy  

SciTech Connect

The crevice corrosion behaviors of an Fe-based bulk metallic glass alloy (SAM1651) and a Ni-Cr-Mo crystalline alloy (C-22) were studied in 4M NaCl at 100 C with cyclic potentiodynamic polarization and constant potential tests. The corrosion damage morphologies, corrosion products and the compositions of corroded surfaces of these two alloys were studied with optical 3D reconstruction, Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS) and Auger Electron Spectroscopy (AES). It was found that the Fe-based bulk metallic glass (amorphous alloy) SAM1651 had a more positive breakdown potential and repassivation potential than crystalline alloy C-22 in cyclic potentiodynamic polarization tests and required a more positive oxidizing potential to initiate crevice corrosion in constant potential test. Once crevice corrosion initiated, the corrosion propagation of C-22 was more localized near the crevice border compared to SAM1651, and SAM1651 repassivated more readily than C-22. The EDS results indicated that the corrosion products of both alloys contained high amount of O and were enriched in Mo and Cr. The AES results indicated that a Cr-rich oxide passive film was formed on the surfaces of both alloys, and both alloys were corroded congruently.

Shan, X; Ha, H; Payer, J H

2008-07-24T23:59:59.000Z

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381

Reactions of Ethylidene on a Model Chromia Surface: 1 1-Dichloroethane on Stoichiometric alpha-Cr2O3 (1012)  

SciTech Connect

The reaction of CH{sub 3}CHCl{sub 2} over the nearly-stoichiometric {alpha}-Cr{sub 2}O{sub 3} (10{sub {bar 1}} > 2) surface produces an ethylidene intermediate that yields primarily gas phase CH{sub 2}{double_bond}CH{sub 2} and surface chlorine adatoms; however, trace amounts of HC{triple_bond}CH, CH{sub 3}CH{sub 3}, H{sub 2} and CH{sub 3}CH{double_bond}CHCH{sub 3} are also observed. A rate-limiting intramolecular isomerization (2,1-hydrogen shift) in the surface ethylidene species produces gas phase CH{sub 2}{double_bond}CH{sub 2}. The chlorine freed from the dissociation of CH{sub 3}CHCl{sub 2} binds at the five-coordinate surface Cr{sup 3+} sites on the stoichiometric surface, completing the octahedral coordination sphere, and inhibits the surface chemistry by simple site blocking. No surface carbon deposition is observed from the thermal reaction of 1,1-dichloroethane under the conditions of this study, demonstrating that the ethylidene intermediate is not a primary coke forming intermediate over (10{sub {bar 1}} > 2) facets of {alpha}-Cr{sub 2}O{sub 3} under the conditions of this study.

J Brooks; T Chen; D Mullins; D Cox

2011-12-31T23:59:59.000Z

382

J.L. Liscum-Powell, S.D. Pautz, C.R. Drumm, W.C. Fan, W.J. Bohnhoff...  

National Nuclear Security Administration (NNSA)

of the Ceptre Code to Cable SGEMP Problems J.L. Liscum-Powell, * S.D. Pautz, * C.R. Drumm, * W.C. Fan, * W.J. Bohnhoff, * L.J. Lorence * * Sandia National Laboratories,...

383

A Conceptual model of coupled biogeochemical and hydrogeological processes affected by in situ Cr(VI) bioreduction in groundwater at Hanford 100H Site  

E-Print Network (OSTI)

in Groundwater at Hanford 100H Site B.Faybishenko, P.E.Long,Cr(VI) contaminated groundwater at Hanford 100H site. A slowHRC TM ), was injected in Hanford sediments to stimulate

2006-01-01T23:59:59.000Z

384

Properties of molecular beam epitaxy grown Eu{sub x}(transition metal){sub y} films (transition metals: Mn, Cr)  

Science Conference Proceedings (OSTI)

The electronic and crystallographic structures, as well as the magnetic properties, of Eu{sub x}(transition metal){sub y} (transition metals: Mn, Cr) thin films grown by molecular beam epitaxy were studied. Relative changes of the Eu/Mn and Eu/Cr ratios derived from the XPS lines, as well as x-ray reflectivity, indicate mixing of the Eu/Mn and Eu/Cr layers. Valency transitions from Eu{sup 2+} to Eu{sup 3+} were observed in both systems for most studied stoichiometries. A transition to a magnetically ordered phase was observed at 15 K, 40 K, and 62 K for selected films in the Eu-Mn system, and at 50 K for the film with a Eu/Cr ratio of 0.5.

Balin, K. [A. Chelkowski Institute of Physics, University of Silesia, Katowice, 40-007 (Poland); Center for Magnetism and Magnetic Nanostructures, University of Colorado at Colorado Springs, Colorado Springs, Colorado 80918 (United States); Nowak, A. [A. Chelkowski Institute of Physics, University of Silesia, Katowice, 40-007 (Poland); Laboratoire de Physique de l'Etat Condense, University du Maine, Le Mans Cedex, 72085 (France); Gibaud, A. [Laboratoire de Physique de l'Etat Condense, University du Maine, Le Mans Cedex, 72085 (France); Szade, J. [A. Chelkowski Institute of Physics, University of Silesia, Katowice, 40-007 (Poland); Celinski, Z. [Center for Magnetism and Magnetic Nanostructures, University of Colorado at Colorado Springs, Colorado Springs, Colorado 80918 (United States)

2011-04-01T23:59:59.000Z

385

Materials Reliability Program: Re-Evaluation of Results in NUREG/CR-6674 for Carbon and Low-Alloy Steel Components (MRP-74)  

Science Conference Proceedings (OSTI)

This report presents the outcome of a project to review the analysis performed in Nuclear Regulatory Commission (NRC) report NUREG/CR-6674, and presents a re-evaluation of the carbon and low-alloy steel components described in that report. The re-evaluation showed that the use of more realistic, yet conservative, assumptions results in probabilities of crack initiation and leakage that are significantly less than stated in NUREG/CR-6674.

2002-11-14T23:59:59.000Z

386

Giant magnetoresistive structures based on CrO{sub 2} with epitaxial RuO{sub 2} as the spacer layer  

Science Conference Proceedings (OSTI)

Epitaxial ruthenium dioxide (RuO{sub 2})/chromium dioxide(CrO{sub 2}) thin film heterostructures have been grown on (100)-TiO{sub 2} substrates by chemical vapor deposition. Both current-in-plane (CIP) and current-perpendicular-to-plane (CPP) giant magnetoresistive stacks were fabricated with either Co or another epitaxial CrO{sub 2} layer as the top electrode. The Cr{sub 2}O{sub 3} barrier, which forms naturally on CrO{sub 2} surfaces, is no longer present after the RuO{sub 2} deposition, resulting in a highly conductive interface that has a resistance at least four orders of magnitude lower. However, only very limited magnetoresistance (MR) was observed. Such low MR is due to the appearance of a chemically and magnetically disordered layer at the CrO{sub 2} and RuO{sub 2} interfaces when Cr{sub 2}O{sub 3} is transformed into rutile structures during its intermixing with RuO{sub 2}.

Miao, G.X.; Gupta, A.; Sims, H.; Butler, W.H.; Ghosh, S.; Xiao Gang [Physics Department, Brown University, Providence, Rhode Island 02912 (United States); Center for Materials for Information Technology, University of Alabama, Tuscaloosa, Alabama 35487 (United States); Department of Electrical and Computer Engineering, University of Illinois, Chicago, Illinois 60607 (United States); Physics Department, Brown University, Providence, Rhode Island 02912 (United States)

2005-05-15T23:59:59.000Z

387

High-energy emission from pulsars in polar-cap models with CR-induced cascades  

E-Print Network (OSTI)

For a subclass of polar-cap models based on electromagnetic cascades induced by curvature radiation (CR) we calculate broad-band high-energy spectra of pulsed emission expected for classical and millisecond pulsars. The spectra are a combination of curvature and synchrotron components. The spectrum of curvature component breaks at 150MeV, and neither its slope nor level below this energy are compatible with phase-averaged spectra of pulsed X-ray emission inferred from observations. Spectral properties in the combined energy range of ROSAT and ASCA (0.1 - 10 keV) depend upon the location of cyclotron turnover energy epsilon_ct=\\hbar{e B \\over m_e c} /sin(psi) in the synchrotron component. Unlike in outer-gap models, the available range of pitch angles psi is rather narrow and confined to low values. For classical pulsars, a gradual turnover begins already at 1MeV, and the level of the synchrotron spectrum decreases. At 10keV the curvature component eventually takes over, but with photon index alpha = 2/3, in disagreement with observations. For millisecond pulsars, the X-ray spectra are dominated by synchrotron component with alpha \\simeq 1.5, and a sharp turnover into alpha \\simeq -1 at epsilon_ct \\sim 100eV. Relations of pulsed luminosity L_X to spin-down luminosity \\edot are presented for classical and millisecond pulsars. We conclude that spectral properties and fluxes of pulsed non-thermal X-ray emission of some objects, like the Crab or the millisecond pulsar B1821-24, pose a challenge to the subclass of polar-cap models based on curvature and synchrotron radiation alone.

B. Rudak; J. Dyks

1998-12-10T23:59:59.000Z

388

Laser welding and post weld treatment of modified 9Cr-1MoVNb steel.  

SciTech Connect

Laser welding and post weld laser treatment of modified 9Cr-1MoVNb steels (Grade P91) were performed in this preliminary study to investigate the feasibility of using laser welding process as a potential alternative to arc welding methods for solving the Type IV cracking problem in P91 steel welds. The mechanical and metallurgical testing of the pulsed Nd:YAG laser-welded samples shows the following conclusions: (1) both bead-on-plate and circumferential butt welds made by a pulsed Nd:YAG laser show good welds that are free of microcracks and porosity. The narrow heat affected zone has a homogeneous grain structure without conventional soft hardness zone where the Type IV cracking occurs in conventional arc welds. (2) The laser weld tests also show that the same laser welder has the potential to be used as a multi-function tool for weld surface remelting, glazing or post weld tempering to reduce the weld surface defects and to increase the cracking resistance and toughness of the welds. (3) The Vicker hardness of laser welds in the weld and heat affected zone was 420-500 HV with peak hardness in the HAZ compared to 240 HV of base metal. Post weld laser treatment was able to slightly reduce the peak hardness and smooth the hardness profile, but failed to bring the hardness down to below 300 HV due to insufficient time at temperature and too fast cooling rate after the time. Though optimal hardness of weld made by laser is to be determined for best weld strength, methods to achieve the post weld laser treatment temperature, time at the temperature and slow cooling rate need to be developed. (4) Mechanical testing of the laser weld and post weld laser treated samples need to be performed to evaluate the effects of laser post treatments such as surface remelting, glazing, re-hardening, or tempering on the strength of the welds.

Xu, Z. (Nuclear Engineering Division)

2012-04-03T23:59:59.000Z

389

CANTON LAKESHORE CANTON E BEST CON NEAUT GIDD INGS EAST N ELLSWORT  

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

MCKEESPORT MCKEESPORT COR AOPOLIS-MOON REDHAW ST. CLAIR SC ROGGSFIELD FRANKLIN -OAK FOREST RIMERSBURG RENNERD AL E GREENVILL E PAT MOS CRABTR EE BLAC K ASH ROYALT ON N BAKERSTOWN QUEEN ROU GH RUN LUCAS BLAC K H ILL CRESTON WAT TSVILLE WADSWORTH -NORT H OAKLAN D HOM EWORT H UNIT Y ESSELBRUN ALAMED A PAR K-CROOKED RU CHERRY GROVE FRENC HTOWN ST EWART RUN MILL C REEK GLENF IELD-MOU NT NEBO HICKORY E HARRISVILLE E LEST ER GRIGGS CORNERS EN GLAN D WEST VIL LE LAKE BAILEY LAKE OAKFORD BR UNSWICK N HOR ACE WALBORN RESERVOIR YOUN GSVILLE RPD-LORAIN -1 INGOMAR-GRUBBS BIG MEADOWS GARD EN ISLE TURT LE CREEK LEWIST ON E BR USH CR EEK FOOT VILLE BU LL CREEK BESSEMER EAGLEVILLE LIVER POOL E RIDGEVILLE E EVANS CIT Y GUIT ONVILLE WOLF S COR NERS WIN DFALL ABBEYVILLE ROC K CAMP LEATH ER WOOD AR COLA CR EEK MEC HANICST OWN NINE MILE RU N WALKCHALK RENFR EW-MCCALMONT BU FFALO N VALENCIA WELLIN GT ON

390

The effect of f[subscript O2] on the partitioning and valence of V and Cr in garnet/melt pairs and the relation to terrestrial mantle V and Cr content  

Science Conference Proceedings (OSTI)

Chromium and vanadium are stable in multiple valence states in natural systems, and their distribution between garnet and silicate melt is not well understood. Here, the partitioning and valence state of V and Cr in experimental garnet/melt pairs have been studied at 1.8-3.0 GPa, with variable oxygen fugacity between IW-1.66 and the Ru-RuO{sub 2} (IW+9.36) buffer. In addition, the valence state of V and Cr has been measured in several high-pressure (majoritic garnet up to 20 GPa) experimental garnets, some natural megacrystic garnets from the western United States, and a suite of mantle garnets from South Africa. The results show that Cr remains in trivalent in garnet across a wide range of oxygen fugacities. Vanadium, on the other hand, exhibits variable valence state from 2.5 to 3.7 in the garnets and from 3.0 to 4.0 in the glasses. The valence state of V is always greater in the glass than in the garnet. Moreover, the garnet/melt partition coefficient, D(V), is highest when V is trivalent, at the most reduced conditions investigated (IW-1.66 to FMQ). The V{sup 2.5+} measured in high P-T experimental garnets is consistent with the reduced nature of those metal-bearing systems. The low V valence state measured in natural megacrystic garnets is consistent with f{sub O{sub 2}} close to the IW buffer, overlapping the range of f{sub O{sub 2}} measured independently by Fe{sup 2+}/Fe{sup 3+} techniques on similar samples. However, the valence state of V measured in a suite of mantle garnets from South Africa is constant across a 3 log f{sub O{sub 2}} unit range (FMQ-1.8 to FMQ-4.5), suggesting that the valence state of V is controlled by the crystal chemistry of the garnets rather than f{sub O{sub 2}} variations. The compatibility of V and Cr in garnets and other deep mantle silicates indicates that the depletion of these elements in the Earth's primitive upper mantle could be due to partitioning into lower mantle phases as well as into metal.

Righter, K.; Sutton, S.; Danielson, L.; Pando, K.; Schmidt, G.; Yang, H.; Berthet, S.; Newville, M.; Choi, Y.; Downs, R.T.; Malavergne, V. (Paris); (NASA-JSC); (UC); (Ariz)

2011-09-16T23:59:59.000Z

391

Application of USNRC NUREG/CR-6661 and draft DG-1108 to evolutionary and advanced reactor designs  

Science Conference Proceedings (OSTI)

For the seismic design of evolutionary and advanced nuclear reactor power plants, there are definite financial advantages in the application of USNRC NUREG/CR-6661 and draft Regulatory Guide DG-1108. NUREG/CR-6661, 'Benchmark Program for the Evaluation of Methods to Analyze Non-Classically Damped Coupled Systems', was by Brookhaven National Laboratory (BNL) for the USNRC, and Draft Regulatory Guide DG-1108 is the proposed revision to the current Regulatory Guide (RG) 1.92, Revision 1, 'Combining Modal Responses and Spatial Components in Seismic Response Analysis'. The draft Regulatory Guide DG-1108 is available at http://members.cox.net/apolloconsulting, which also provides a link to the USNRC ADAMS site to search for NUREG/CR-6661 in text file or image file. The draft Regulatory Guide DG-1108 removes unnecessary conservatism in the modal combinations for closely spaced modes in seismic response spectrum analysis. Its application will be very helpful in coupled seismic analysis for structures and heavy equipment to reduce seismic responses and in piping system seismic design. In the NUREG/CR-6661 benchmark program, which investigated coupled seismic analysis of structures and equipment or piping systems with different damping values, three of the four participants applied the complex mode solution method to handle different damping values for structures, equipment, and piping systems. The fourth participant applied the classical normal mode method with equivalent weighted damping values to handle differences in structural, equipment, and piping system damping values. Coupled analysis will reduce the equipment responses when equipment, or piping system and structure are in or close to resonance. However, this reduction in responses occurs only if the realistic DG-1108 modal response combination method is applied, because closely spaced modes will be produced when structure and equipment or piping systems are in or close to resonance. Otherwise, the conservatism in the current Regulatory Guide 1.92, Revision 1, will overshadow the advantage of coupled analysis. All four participants applied the realistic modal combination method of DG-1108. Consequently, more realistic and reduced responses were obtained. (authors)

Chang 'Apollo', Chen [Apollo Consulting, Inc., Surprise, AZ 85374-4605 (United States)

2006-07-01T23:59:59.000Z

392

Very heavily electron-doped CrSi2 as a high performance high temperature thermoelectric material  

SciTech Connect

We analyze the thermoelectric behavior, using first principles and Boltzmann transport calculations, of very heavily electron-doped CrSi2 and find that at temperatures of 1250 K and electron dopings of $1-4 \\times10^{21}$ cm$^{-3}$, thermopowers as large or larger in magnitude than 200 $\\mathrm{\\mu}$V/K may be found. Such high thermopowers at such high carrier concentrations are extremely rare, and suggest that good thermolectric performance (i.e. ZT) may be found in these ranges of temperature and doping.

Parker, David S [ORNL; Singh, David J [ORNL

2012-01-01T23:59:59.000Z

393

Influence of intergranular exchange coupling on the magnetization dynamics of CoCrPt:SiO{sub 2} granular media  

Science Conference Proceedings (OSTI)

We investigate the effect of Co{sup +} irradiation on the magnetization dynamics of CoCrPt:SiO{sub 2} granular media. Increasing irradiation levels reduce the saturation magnetization and effective anisotropy, which decrease the intrinsic magnetization precession frequency. Furthermore, increasing intergranular exchange coupling results in a qualitative change in the behavior of the magnetic material from a collection of individual grains to a homogeneous thin film, as evidenced in both the switching behavior and dynamics. The frequency change cannot be explained by single crystal macrospin modeling, and can only be reproduced by the inclusion of the dipolar effects and anisotropy distribution inherent in a granular medium.

Brandt, R.; Schmidt, H. [School of Engineering, University of California-Santa Cruz, 1156 High Street, Santa Cruz, California 95064 (United States); Tibus, S. [Department of Physics, University of Konstanz, D-78457 Konstanz (Germany); Institute of Physics, Chemnitz University of Technology, Reichenhainer Str. 70, 09126 Chemnitz (Germany); Springer, F. [Department of Physics, University of Konstanz, D-78457 Konstanz (Germany); Fassbender, J. [Institute of Ion Beam Physics and Materials Research, Forschungszentrum Dresden-Rossendorf, D-01314 Dresden (Germany); Rohrmann, H. [OC Oerlikon Balzers AG, LI-9496 Balzers (Liechtenstein); Albrecht, M. [Institute of Physics, Chemnitz University of Technology, Reichenhainer Str. 70, 09126 Chemnitz (Germany)

2012-08-01T23:59:59.000Z

394

Hydrogen production using fusion energy and thermochemical cycles. [Fe/sub 3/O/sub 4/-FeO, CrCl/sub 3/-CrCl/sub 2/, and UCl/sub 4/-UCl/sub 3/  

DOE Green Energy (OSTI)

Thermochemical cycles for the production of synthetic fuels would be especially suited for operation in conjunction with controlled thermonuclear fusion reactors because of the very high temperature energy which such reactors could supply. Furthermore, fusion energy when developed is considered to be an inexhaustable supply of energy. Several high-temperature two-step thermochemical cycles for the production of hydrogen are examined. A thermodynamic analysis of the Fe/sub 3/O/sub 4/--FeO, CrCl/sub 3/--CrCl/sub 2/, and UCl/sub 4/--UCl/sub 3/ pairs reveals the feasibility of the process. A more detailed process analysis is given for the Fe/sub 3/O/sub 4/--FeO system using steam as the heat transfer medium for decomposing the higher valent metal oxide for oxygen production, and hydrolysing the lower oxide for hydrogen production. The steam could be heated to high temperatures by refractory materials absorbing the 14-MeV neutrons in the blanket region of a fusion reactor. Process heat transfer and recovery could be accomplished by regenerative reactors. Proposed operating conditions, the energy balance and the efficiency of the water decomposition process are presented. With a fusion blanket temperature of 2500/sup 0/K, thermal efficiencies for hydrogen production of 74.4% may be obtained.

Steinberg, M.; Dang, V.D.

1978-02-01T23:59:59.000Z

395

Role of Triple Phonon Excitations on Large Angle Quasi-elastic Scattering of {sup 54}Cr+{sup 208}Pb System  

Science Conference Proceedings (OSTI)

We study the large angle quasi-elastic scattering of {sup 54}Cr+{sup 208}Pb system in terms of the full-order coupled-channels formalism. We especially investigate the role of single, double and triple phonon excitations on quasi-elastic scattering cross section as well as quasi-elastic barrier distribution of this system for which the experimental data have been measured. It is shown that the triple phonon excitations both in {sup 54}Cr and {sup 208}Pb nuclei seem to be needed by the present coupled-channels calculations in order to reproduce the experimental data of quasi-elastic cross section and barrier distribution for the {sup 54}Cr+{sup 208}Pb system. We also show that the standard value of the surface diffuseness parameter for the nuclear potential a = 0.63 fm, is preferred by the experimental quasi-elastic scattering data for this system.

Zamrun, Muhammad F. [Department of Physics, University of Malaya, Kuala Lumpur 50603 (Malaysia); Jurusan Fisika FMIPA, Universitas Haluoleo, Kendari, Sulawesi Tenggara 93232 (Indonesia); Kasim, Hasan Abu [Department of Physics, University of Malaya, Kuala Lumpur 50603 (Malaysia)

2011-03-30T23:59:59.000Z

396

Efficient pulsed Cr{sup 2+}:CdSe laser continuously tunable in the spectral range from 2.26 to 3.61 {mu}m  

SciTech Connect

The efficient lasing of a Cr{sup 2+}:CdSe single crystal pumped by 1.94-{mu}m, 300-{mu}s pulses from a Tm:YAP laser was obtained. The Cr{sup 2+}:CdSe laser with a nonselective resonator emitted up to 17 mJ at a wavelength of {approx}2.65 {mu}m with the quantum slope efficiency of 63% with respect to the absorbed pump energy. The absorption coefficient of the Cr{sup 2+}:CdSe crystal at the laser wavelength did not exceed 0.045 cm{sup -1}. By using a resonator with a dispersion prism, the laser wavelength was continuously tuned in the spectral range from 2.26 to 3.61 {mu}m. (lasers)

Akimov, V A [Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow Region (Russian Federation); Kozlovskii, V I; Korostelin, Yu V; Landman, A I; Podmar'kov, Yu P; Skasyrskii, Ya K; Frolov, M P [P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2008-03-31T23:59:59.000Z

397

Performance of LiAlloy/Ag(2)CrO(4) Couples in Molten CsBr-LiBr-KBr Eutectic  

DOE Green Energy (OSTI)

The performance of Li-alloy/CsBr-LiBr-KBr/Ag{sub 2}CrO{sub 4} systems was studied over a temperature range of 250 C to 300 C, for possible use as a power source for geothermal borehole applications. Single cells were discharged at current densities of 15.8 and 32.6 mA/cm{sup 2} using Li-Si and Li-Al anodes. When tested in 5-cell batteries, the Li-Si/CsBr-LiBr-KBr/Ag{sub 2}CrO{sub 4} system exhibited thermal runaway. Thermal analytical tests showed that the Ag{sub 2}CrO{sub 4} cathode reacted exothermically with the electrolyte on activation. Consequently, this system would not be practical for the envisioned geothermal borehole applications.

GUIDOTTI,RONALD A.; REINHARDT,FREDERICK W.

1999-10-18T23:59:59.000Z

398

Materials Reliability Program, Re-Evaluation of Results in NUREG/CR-6674 for Carbon and Low Alloy Steel Components (MRP-74, Revision 1)  

Science Conference Proceedings (OSTI)

This report presents the outcome of a project to review the analysis performed in Nuclear Regulatory Commission report NUREG/CR-6674 and presents a re-evaluation of the carbon and low-alloy steel components described in that report. The re-evaluation showed that the use of more realistic, yet conservative, assumptions results in probabilities of crack initiation and leakage that are significantly less than stated in NUREG/CR-6674. However, after several reviews by the Nuclear Regulatory Commission (NRC),...

2005-02-22T23:59:59.000Z

399

Directional Drivers of Sustainable Manufacturing  

Science Conference Proceedings (OSTI)

... International Green Construction Code, legislation, executive orders and updated green building schemes that ... A Modified Pidgeon Process for Energy Savings and Low Carbon Dioxide Emission ... Improving the Efficiency of Solar Cells.

400

Vehicle Management Driver Safety Program  

E-Print Network (OSTI)

in the city of La Rochelle [1], using fully automated electric and communicating road vehicles, better known campus was implemented using fully automated electric and communicating vehicles. The vehicles behavior. Safety Autonomous vehicles may need to stop in a progressive way in the case of obstacles in the way

Machel, Hans

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401

National Needs Drivers for Nanotechnology  

SciTech Connect

Societal needs related to demographics, resources, and human behavior will drive technological advances over the next 20 years. Nanotechnology is anticipated to be an important enabler of these advances, and thus maybe anticipated to have significant influence on new systems approaches to solving societal problems as well as on extending current science and technology-based applications. To examine the potential implications of nanotechnology a societal needs-driven approach is taken. Thus the methodology is to present the definition of the problem, and then examine system concepts, technology issues, and promising future directions. We approach the problem definition from a national and global security perspective and identify three key areas involving the condition of the planet, the human condition, and global security. In anticipating societal issues in the context of revolutionary technologies, such as maybe enabled by nanoscience, the importance of working on the entire life cycle of any technological solution is stressed.

Yonas, G.; Picraux, S.T.

2000-10-09T23:59:59.000Z

402

BlobCR: Virtual disk based checkpoint-restart for HPC applications on IaaS clouds  

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

Parallel Distrib. Comput. 73 (2013) 698-711 Contents lists available at SciVerse ScienceDirect J. Parallel Distrib. Comput. journal homepage: www.elsevier.com/locate/jpdc BlobCR: Virtual disk based checkpoint-restart for HPC applications on IaaS clouds Bogdan Nicolae a,∗ , Franck Cappello b,c a IBM Research, Ireland b INRIA Saclay, France c University of Illinois at Urbana-Champaign, United States a r t i c l e i n f o Article history: Received 9 August 2012 Received in revised form 28 December 2012 Accepted 22 January 2013 Available online 1 February 2013 Keywords: IaaS clouds High performance computing Checkpoint-restart Fault tolerance Virtual disk snapshots Rollback of filesystem changes a b s t r a c t Infrastructure-as-a-Service (IaaS) cloud computing is gaining significant interest in industry and academia as an alternative platform for running HPC applications.

403

NUREG/CR-6695 PNNL-13375 Hydrologic Uncertainty Assessment for Decommissioning Sites: Hypothetical Test Case Applications Prepared by  

E-Print Network (OSTI)

This report uses hypothetical decommissioning test cases to illustrate an uncertainty assessment methodology for dose assessments conducted as part of decommissioning analyses for NRC-licensed facilities. This methodology was presented previously in NUREG/CR-6656. The hypothetical test case source term and scenarios are based on an actual decommissioning case and the physical setting is based on the site of a field experiment carried out for the NRC in Arizona. The emphasis in the test case was on parameter uncertainty. The analysis is limited to the hydrologic aspects of the exposure pathway involving infiltration of water at the ground surface, leaching of contaminants, and transport of contaminants through the groundwater to a point of exposure. The methodology uses generic parameter distributions based on national or regional databases for estimating

P. D. Meyer; R. Y. Taira

2001-01-01T23:59:59.000Z

404

Oxidation pretreatment to reduce corrosion of 20%Cr-25%Ni-Nb stainless steel. II. Surface morphology and oxide characterization  

SciTech Connect

Improved corrosion behavior of 20%Cr-25%Ni-Nb steel resulting from a low pressure oxidation pretreatment in CO/sub 2/ has been related to changes in elemental composition and distribution in the oxide scale. Auger electron spectroscopy, secondary ion mass spectroscopy, electron microprobe, and X-ray diffraction techniques have been used to investigate the properties of the oxide scale formed on both untreated and pretreated specimens when oxidized at 823 K and 923 K in a CO/sub 2/-1%CO atmosphere. A sputter ion plating technique has been used to separate the oxide from the metal and the incorporation of chromium and silicon at the metal-oxide interface has been investigated at grain centers and grain boundaries by depth profiling. The improvement in oxide adhesion and oxidation rates, using data from Parts I and II of this study, is assessed in terms of oxide formation by solid-state displacement reactions.

Tempest, P.A.; Wild, R.K.

1988-10-01T23:59:59.000Z

405

LONG-TERM OPTICAL OBSERVATIONS OF TWO LMXBs: UW CrB (=MS 1603+260) AND V1408 Aql (=4U 1957+115)  

SciTech Connect

We present new optical photometry of two low-mass X-ray binary stars, UW CrB (MS 1603+260) and V1408 Aql (4U 1957+115). UW CrB is an eclipsing binary and we refine its eclipse ephemeris and measure an upper limit to the rate of change of its orbital period, | P-dot | < 4.2 Multiplication-Sign 10{sup -11} (unitless). The light curve of UW CrB shows optical counterparts of type I X-ray bursts. We tabulate the times, orbital phases, and fluences of 33 bursts and show that the optical flux in the bursts comes primarily from the accretion disk, not from the secondary star. The new observations are consistent with a model in which the accretion disk in UW CrB is asymmetric and precesses in the prograde direction with a period of {approx}5.5 days. The light curve of V1408 Aql has a low-amplitude modulation at its 9.33 hr orbital period. The modulation remained a nearly pure sine curve in the new data as it was in 1984 and 2008, but its mean amplitude was lower, 18% against 23% in the earlier data. A model in which the orbital modulation is caused by the varying aspect of the heated face of the secondary star continues to give an excellent fit to the light curve. We derive a much improved orbital ephemeris for the system.

Mason, Paul A. [Department of Physics, University of Texas at El Paso, El Paso, TX 79968 (United States); Robinson, Edward L.; Bayless, Amanda J. [Department of Astronomy, University of Texas at Austin, 1 University Station, Austin, TX 78712 (United States); Hakala, Pasi J. [Finnish Centre for Astronomy with ESO, Vaeisaelaentie 20, FIN-21500 Piikkioe, University of Turku (Finland)

2012-10-01T23:59:59.000Z

406

Cr-free Fe-based metal oxide catalysts for high temperature water gas shift reaction of fuel processor using LPG  

Science Conference Proceedings (OSTI)

The goal of this study was to identify the most suitable chromium-free iron-based catalysts for the HTS (high temperature shift) reaction of a fuel processor using LPG. Hexavalent chromium (Cr6+) in the commercial HTS catalyst has been regarded as hazardous material. We selected Ni and Co as the substitution for chromium in the Fe-based HTS catalyst and investigated the HTS activities of these Crfree catalysts at LPG reformate condition. Cr-free Fe-based catalysts which contain Ni, Zn, or Co instead of Cr were prepared by coprecipitation method and the performance of the catalysts in HTS was evaluated under gas mixture conditions (42% H2, 10% CO, 37% H2O, 8% CO2, and 3% CH4; R (reduction factor): about 1.2) similar to the gases from steam reforming of LPG (100% conversion at steam/carbon ratio = 3), which is higher than R (under 1) of typically studied LNG reformate condition. Among the prepared Cr-free Febased catalysts, the 5 wt%-Co/Fe/20 wt%-Ni and 5 wt%-Zn/Fe/20 wt%-Ni catalysts showed good catalytic activity under this reaction condition simulating LPG reformate gas.

lee, Joon Y.; Lee, Dae-Won; Lee, Kwan Young; Wang, Yong

2009-08-15T23:59:59.000Z

407

Compositional analysis and depth profiling of thin film CrO{sub 2} by heavy ion ERDA and standard RBS: a comparison  

Science Conference Proceedings (OSTI)

Chromium dioxide (CrO{sub 2}) thin film has generated considerable interest in applied research due to the wide variety of its technological applications. It has been extensively investigated in recent years, attracting the attention of researchers working on spintronic heterostructures and in the magnetic recording industry. However, its synthesis is usually a difficult task due to its metastable nature and various synthesis techniques are being investigated. In this work a polycrystalline thin film of CrO{sub 2} was prepared by electron beam vaporization of Cr{sub 2}O{sub 3} onto a Si substrate. The polycrystalline structure was confirmed through XRD analysis. The stoichiometry and elemental depth distribution of the deposited film were measured by ion beam nuclear analytical techniques heavy ion elastic recoil detection analysis (ERDA) and Rutherford backscattering spectrometry (RBS), which both have relative advantage over non-nuclear spectrometries in that they can readily provide quantitative information about the concentration and distribution of different atomic species in a layer. Moreover, the analysis carried out highlights the importance of complementary usage of the two techniques to obtain a more complete description of elemental content and depth distribution in thin films. - Graphical abstract: Heavy ion elastic recoil detection analysis (ERDA) and Rutherford backscattering spectrometry (RBS) both have relative advantage over non-nuclear spectrometries in that they can readily provide quantitative information about the concentration and distribution of different atomic species in a layer. Highlights: Black-Right-Pointing-Pointer Thin films of CrO{sub 2} have been grown by e-beam evaporation of Cr{sub 2}O{sub 3} target in vacuum. Black-Right-Pointing-Pointer The composition was determined by heavy ion-ERDA and RBS. Black-Right-Pointing-Pointer HI-ERDA and RBS provided information on the light and heavy elements, respectively.

Khamlich, S., E-mail: skhamlich@gmail.com [Nano-Sciences Laboratories, Materials Research Department, iThemba LABS, P.O. Box 722, Somerset West 7129 (South Africa); Department of Chemistry, Tshwane University of Technology, Private Bag X 680, Pretoria, 0001 (South Africa); The African Laser Centre, CSIR campus, P.O. Box 395, Pretoria (South Africa); Msimanga, M., E-mail: mandla@tlabs.ac.za [Nano-Sciences Laboratories, Materials Research Department, iThemba LABS, P.O. Box 722, Somerset West 7129 (South Africa); iThemba LABS Gauteng, Private Bag 11, WITS 2050, Johannesburg (South Africa); Pineda-Vargas, C.A. [Nano-Sciences Laboratories, Materials Research Department, iThemba LABS, P.O. Box 722, Somerset West 7129 (South Africa); Faculty of Health and Wellness Sciences, C.P.U.T., P.O. Box 1906, Bellville 7535 (South Africa); Nuru, Z.Y. [Nano-Sciences Laboratories, Materials Research Department, iThemba LABS, P.O. Box 722, Somerset West 7129 (South Africa); McCrindle, R. [Department of Chemistry, Tshwane University of Technology, Private Bag X 680, Pretoria, 0001 (South Africa); Maaza, M. [Nano-Sciences Laboratories, Materials Research Department, iThemba LABS, P.O. Box 722, Somerset West 7129 (South Africa); Department of Chemistry, Tshwane University of Technology, Private Bag X 680, Pretoria, 0001 (South Africa); The African Laser Centre, CSIR campus, P.O. Box 395, Pretoria (South Africa)

2012-08-15T23:59:59.000Z

408

Reduced Pressure Electron Beam Welding Evaluation Activities on a Ni-Cr-Mo Alloy for Nuclear Waste Packages  

SciTech Connect

The current waste package design for the proposed repository at Yucca Mountain Nevada, USA, employs gas tungsten arc welding (GTAW) in fabricating the waste packages. While GTAW is widely used in industry for many applications, it requires multiple weld passes. By comparison, single-pass welding methods inherently use lower heat input than multi-pass welding methods which results in lower levels of weld distortion and also narrower regions of residual stresses at the weld TWI Ltd. has developed a Reduced Pressure Electron Beam (RPEB) welding process which allows EB welding in a reduced pressure environment ({le} 1 mbar). As it is a single-pass welding technique, use of RPEB welding could (1) achieve a comparable or better materials performance and (2) lead to potential cost savings in the waste package manufacturing as compared to GTAW. Results will be presented on the initial evaluation of the RPEB welding on a Ni-Cr-Mo alloy (a candidate alloy for the Yucca Mountain waste packages) in the areas of (a) design and manufacturing simplifications, (b) material performance and (c) weld reliability.

Wong, F; Punshon, C; Dorsch, T; Fielding, P; Richard, D; Yang, N; Hill, M; DeWald, A; Rebak, R; Day, S; Wong, L; Torres, S; McGregor, M; Hackel, L; Chen, H-L; Rankin, J

2003-09-11T23:59:59.000Z

409

Effect of Oxygen on the Crack Growth Behavior of V-4Cr-4Ti at 600C  

SciTech Connect

Exploratory experiments were performed to evaluate the effect of oxygen on the crack growth response of V-4Cr-4Ti at 600C under constant load. Tests were run in gettered argon, argon containing 2000 ppm oxygen, and laboratory air using fatigue pre-cracked compact tension specimens. Crack growth was measured primarily by post-test fracture surface examination, but also by in-test compliance measurements. Crack growth rates measured in air and gettered argon were about 2-3x10-3 mm/h at a stress intensity factor of about 40 MPavm. The crack growth rate in argon with 2000 ppm oxygen was about 7x10-2 mm/h at the same stress intensity level. The crack growth rates were very sensitive to the stress intensity factor. Over a limited range of stress intensity values the crack growth rate in argon plus 2000 ppm oxygen appears to be power-law dependent on stress intensity with an exponent of about 8.9. The fracture mode in air and gettered argon was transgranular cleavage with 20 to 30% intergranular fracture. In the oxygenated argon environment crack growth occurred predominantly by transgranular cleavage.

Kurtz, Richard J.

2000-09-01T23:59:59.000Z

410

Aging Studies of Sr-doped LaCrO3/YSZ/Pt Cells for an Electrochemical NOx Sensor  

DOE Green Energy (OSTI)

The stability and NO{sub x} sensing performance of electrochemical cells of the structure Sr-doped LaCrO{sub 3-{delta}} (LSC)/yttria-stabilized zirconia (YSZ)/Pt are being investigated for use in NO{sub x} aftertreatment systems in diesel vehicles. Among the requirements for NO{sub x} sensor materials in these systems are stability and long lifetime (up to ten years) in the exhaust environment. In this study, cell aging effects were explored following extended exposure to a test environment of 10% O{sub 2} at operating temperatures of 600-700 C. The data show that aging results in changes in particle morphology, chemical composition and interfacial structure, Impedance spectroscopy indicated an initial increase in the cell resistance during the early stages of aging, which is correlated to densification of the Pt electrode. Also, x-ray photoelectron spectroscopy indicated formation of SrZrO{sub 2} solid state reaction product in the LSC, a process which is of finite duration. Subsequently, the overall cell resistance decreases with aging time due, in part, to roughening of YSZ-LSC interface, which improves interface adherence and enhances charge transfer kinetics at the O{sub 2}/YSZ/LSC triple phase boundary. This study constitutes a first step in the development of a basic understanding of aging phenomena in solid state electrochemical systems with application not only to sensors, but also to fuel cells, membranes, and electrolyzers.

Song, S; Martin, L P; Glass, R S; Murray, E P; Visser, J H; Soltis, R E; Novak, R F; Kubinski, D J

2005-10-05T23:59:59.000Z

411

Application of the NUREG/CR-6850 EPRI/NRC Fire PRA Methodology to a DOE Facility  

SciTech Connect

The application NUREG/CR-6850 EPRI/NRC fire PRA methodology to DOE facility presented several challenges. This paper documents the process and discusses several insights gained during development of the fire PRA. A brief review of the tasks performed is provided with particular focus on the following: • Tasks 5 and 14: Fire-induced risk model and fire risk quantification. A key lesson learned was to begin model development and quantification as early as possible in the project using screening values and simplified modeling if necessary. • Tasks 3 and 9: Fire PRA cable selection and detailed circuit failure analysis. In retrospect, it would have been beneficial to perform the model development and quantification in 2 phases with detailed circuit analysis applied during phase 2. This would have allowed for development of a robust model and quantification earlier in the project and would have provided insights into where to focus the detailed circuit analysis efforts. • Tasks 8 and 11: Scoping fire modeling and detailed fire modeling. More focus should be placed on detailed fire modeling and less focus on scoping fire modeling. This was the approach taken for the fire PRA. • Task 14: Fire risk quantification. Typically, multiple safe shutdown (SSD) components fail during a given fire scenario. Therefore dependent failure analysis is critical to obtaining a meaningful fire risk quantification. Dependent failure analysis for the fire PRA presented several challenges which will be discussed in the full paper.

Tom Elicson; Bentley Harwood; Richard Yorg; Heather Lucek; Jim Bouchard; Ray Jukkola; Duan Phan

2011-03-01T23:59:59.000Z

412

Nanocrystallization of amorphous M-Si thin film composites (M=Cr, Mn) and their thermoelectric properties  

SciTech Connect

We report on electrical resistivity and thermoelectric power of Cr-Si and Mn-Si composite films at temperatures from 300 K to 1000 K. The films were deposited on unheated Si/SiO{sub 2} substrates by magnetron sputtering from composite targets. The as-deposited films have amorphous structure. We use annealing with in-situ transport properties measurements to transform the films into nanocrystalline state with continuous monitoring their state. Nanocrystallization is considered as a promising way to improve thermoelectric efficiency, primarily due to reduction of lattice thermal conductivity {kappa}. Among variety of methods for fabrication of NC materials, crystallization from amorphous state has features which are crucially important with respect to their electronic transport properties: since the crystallites and their interfaces are formed in this method via solid state reaction, the NC samples are dense and the interfaces are clean. This removes additional factors affecting properties of a nanocrystalline composite, such as contamination of nanocrystal interfaces by elements from environment or nanocrystal lattice distortion during nanocrystallization. Depending on the initial film composition, the films are transformed during annealing into single phase or multi-phase nanocrystalline composites with average grain size of 10 nm to 20 nm. We study the crystallization kinetics, stability of amorphous and nanocrystalline state and relation between electronic transport properties and structural state of the composites.

Burkov, A. T.; Novikov, S. V.; Schumann, J. [A.F. Ioffe Physical-Technical Institute, Sankt-Petersburg, 194021 (Russian Federation); Leibniz Institute for Solid State and Materials Research, Dresden (Germany)

2012-06-26T23:59:59.000Z

413

Revealing the inner circumstellar disk of the T Tauri star S CrA N using the VLTI  

E-Print Network (OSTI)

Aims: We investigate the structure of the circumstellar disk of the T Tauri star S CrA N and test whether the observations agree with the standard picture proposed for Herbig Ae stars. Methods: Our observations were carried out with the VLTI/AMBER instrument in the H and K bands with the low spectral resolution mode. For the interpretation of our near-infrared AMBER and archival mid-infrared MIDI visibilities, we employed both geometric and temperature-gradient models. Results: To characterize the disk size, we first fitted geometric models consisting of a stellar point source, a ring-shaped disk, and a halo structure to the visibilities. In the H and K bands, we measured ring-fit radii of 0.73 +- 0.03 mas (corresponding to 0.095 +- 0.018 AU for a distance of 130 pc) and 0.85 +- 0.07 mas (0.111 +- 0.026 AU), respectively. This K-band radius is approximately two times larger than the dust sublimation radius of ~0.05 AU expected for a dust sublimation temperature of 1500 K and gray dust opacities, but approxima...

Vural, J; Kraus, S; Weigelt, G; Driebe, T; Benisty, M; Dugué, M; Massi, F; Monin, J -L; Vannier, M

2012-01-01T23:59:59.000Z

414

Specification of CuCrZr Alloy Properties after Various Thermo-Mechanical Treatments and Design Allowables including Neutron Irradiation Effects  

Science Conference Proceedings (OSTI)

Precipitation hardened CuCrZr alloy is a promising heat sink and functional material for various applica- tions in ITER, for example the first wall, blanket electrical attachment, divertor, and heating systems. Three types of thermo-mechanical treatment were identified as most promising for the various applica- tions in ITER: solution annealing, cold working and ageing; solution annealing and ageing; solution annealing and ageing at non-optimal condition due to specific manufacturing processes for engineer- ing-scale components. The available data for these three types of treatments were assessed and mini- mum tensile properties were determined based on recommendation of Structural Design Criteria for the ITER In-vessel Components. The available data for these heat treatments were analyzed for assess- ment of neutron irradiation effect. Using the definitions of the ITER Structural Design Criteria the design allowable stress intensity values are proposed for CuCrZr alloy after various heat treatments.

Barabash, Vladimir [ITER Organization, Saint Paul Lez Durance, France; Kalinin, G. M. [RDIPE, P.O. Box 788, 101000 Moscow, Russia; Fabritsiev, Sergei A. [D.V. Efremov Scientific Research Institute, St. Petersburg, Russia; Zinkle, Steven J [ORNL

2012-01-01T23:59:59.000Z

415

Level crossings and zero-field splitting in the {Cr8}-cubane spin-cluster studied using inelastic neutron scattering and magnetization  

Science Conference Proceedings (OSTI)

Inelastic neutron scattering (INS) in variable magnetic field and high-field magnetization measurements in the millikelvin temperature range were performed to gain insight into the low-energy magnetic excitation spectrum and the field-induced level crossings in the molecular spin cluster {Cr8}-cubane. These complementary techniques provide consistent estimates of the lowest level-crossing field. The overall features of the experimental data are explained using an isotropic Heisenberg model, based on three distinct exchange interactions linking the eight CrIII paramagnetic centers (spins s = 3/2), that is supplemented with a relatively large molecular magnetic anisotropy term for the lowest S = 1 multiplet. It is noted that the existence of the anisotropy is clearly evident from the magnetic field dependence of the excitations in the INS measurements, while the magnetization measurements are not sensitive to its effects.

Vaknin, D. [Ames Laboratory; Garlea, Vasile O [ORNL; Demmel, F. [ISIS Facility, Rutherford Appleton Laboratory; Mamontov, Eugene [ORNL; Nojiri, H [Institute for Materials Research, Tohoku University, Sendai, Japan; Martin, Catalin [Florida State University; Chiorescu, Irinel [Florida State University; Qiu, Y. [National Institute of Standards and Technology (NIST); Luban, M. [Ames Laboratory; Kogerler, P. [Ames Laboratory; Fielden, J. [Ames Laboratory; Engelhardt, L [Francis Marion University, Florence, South Sarolina; Rainey, C [Francis Marion University, Florence, South Sarolina

2010-01-01T23:59:59.000Z

416

Applicability of Loss of Offsite Power (LOSP) Events in NUREG/CR-6890 for Entergy Nuclear South (ENS) Plants LOSP Calculations  

SciTech Connect

Significant differences have been identified in loss of offsite power (LOSP or LOOP) event description, category, duration, and applicability between the LOSP events used in NUREG/CR-6890 and ENS'LOSP packages, which were based on EPRI LOSP reports with plant-specific applicability analysis. Thus it is appropriate to reconcile the LOSP data listed in the subject NUREG and EPRI reports. A cross comparison showed that 62 LOSP events in NUREG/CR-6890 were not included in the EPRI reports while 4 events in EPRI reports were missing in the NUREG. Among the 62 events missing in EPRI reports, the majority were applicable to shutdown conditions, which could be classified as category IV events in EPRI reports if included. Detailed reviews of LERs concluded that some events did not result in total loss of offsite power. Some LOSP events were caused by subsequent component failures after a turbine/plant trip, which have been modeled specifically in most ENS plant PRA models. Moreover, ENS has modeled (or is going to model) the partial loss of offsite power events with partial LOSP initiating events. While the direct use of NUREG/CR-6890 results in SPAR models may be appropriate, its direct use in ENS' plant PRA models may not be appropriate because of modeling details in ENS' plant-specific PRA models. Therefore, this paper lists all the differences between the data in NUREG/CR-6890 and EPRI reports and evaluates the applicability of the LOSP events to ENS plant-specific PRA models. The refined LOSP data will characterize the LOSP risk in a more realistic fashion. (authors)

Li, Yunlong; Yilmaz, Fatma; Bedell, Loys [Entergy Nuclear South (United States)

2006-07-01T23:59:59.000Z

417

WELDED TRANSITION JOINT BETWEEN 2-1/4% Cr 1% Mo STEEL AND TYPE 316 STAINLESS STEEL. SODIUM COMPONENTS DESIGN PROJECT RESEARCH AND DEVELOPMENT PROGRAM-FINAL REPORT  

SciTech Connect

A steam generator, wherein the boiler, steam drum, and superheater are integrated into one single unit, requires the welding of a transition joint between the 2 1/4% Cr-1% Mo steel of the steam drum and the type 316 stainless steel of the superheater. A practicable procedure was developed for the welding of this transition joint and the properties of the weld were evaluated by mechanical testing and metallurgical evaluation. After evaluating the technical aspects of the project and their relation to the fabrication of the generator, it was considered desirable to overlay the welding edge of the 2 1/4% Cr-1% Mo steel with a suitable austenitic weld metul which would subsequently be welded to the type 316 stainless steel of the superheater. Austenitic stainless steel and high-nickel alloy weld metals were evaluated for the overlay; whereas only austenitic stainless steel weld metals were evaluated for the final weld joining the components. It was concluded that type 309 stainless steel weld metal deposited automatically by the submergedarc process is completely satisfactory for cladding the 2 1/4% Cr-1% Mo base metal and for making the final transition weld joining the steam drum and superheater sections of the generator. Supplementary mechanical tests, metallographic examinations, and hardness surveys further attested to the adequacy of the quality of the transition joint resulting from the procedures developed by this program. A detailed fabrication and thermal treatment specification is included for the welding of a transition joint between

1960-08-15T23:59:59.000Z

418

Effect of aluminizing of Cr-containing ferritic alloys on the seal strength of a novel high-temperature solid oxide fuel cell sealing glass  

Science Conference Proceedings (OSTI)

A novel high-temperature alkaline-earth silicate sealing glass was developed for solid oxide fuel cell (SOFC) applications. The glass was used to join two metallic coupons of Cr-containing ferritic stainless steel for seal strength evaluation. In previous work, SrCrO4 was found to form along the glass/steel interface, which led to severe strength degradation. In the present study, aluminization of the steel surface was investigated as a remedy to minimize or prevent the strontium chromate formation. Three different processes for aluminization were evaluated with Crofer22APU stainless steel: pack cementation, vapor phase deposition, and aerosol spraying. It was found that pack cementation resulted in a rough surface with occasional cracks in the Al-diffused region. Vapor phase deposition yielded a smoother surface, but the resulting high Al content increased the coefficient of thermal expansion (CTE), resulting in failure of joined coupons. Aerosol spraying of an Al-containing salt resulted in formation of a thin aluminum oxide layer without any surface damage. The room temperature seal strength was evaluated in the as-fired state and in environmentally aged conditions. In contrast to earlier results with uncoated Crofer22APU, the aluminized samples showed no strength degradation even for samples aged in air. Interfacial and chemical compatibility was also investigated. The results showed aluminization to be a viable candidate approach to minimize undesirable chromate formation between alkaline earth silicate sealing glass and Cr-containing interconnect alloys for SOFC applications.

Chou, Y. S.; Stevenson, Jeffry W.; Singh, Prabhakar

2008-12-01T23:59:59.000Z

419

Constitutive Model for the Time-Dependent Mechanical Behavior of 430 Stainless Steel and FeCrAlY Foams in Sulfur-Bearing Environments  

Science Conference Proceedings (OSTI)

The mechanical behavior of 430 stainless steel and pre-oxidized FeCrAlY open-cell foam materials of various densities was evaluated in compression at temperatures between 450 C and 600 C in an environment containing hydrogen sulfide and water vapor. Both materials showed negligible corrosion due to the gaseous atmosphere for up to 168 hours. The monotonic stress-strain response of these materials was found to be dependent on both the strain rate and their density, and the 430 stainless steel foam materials exhibited less stress relaxation than FeCrAlY for similar experimental conditions. Using the results from multiple hardening-relaxation and monotonic tests, an empirical constitutive equation was derived to predict the stress-strain behavior of FeCrAlY foams as a function of temperature and strain rate. These results are discussed in the context of using these materials in a black liquor gasifier to accommodate the chemical expansion of the refractory liner resulting from its reaction with the soda in the black liquor.

Hemrick, James Gordon [ORNL; Lara-Curzio, Edgar [ORNL

2013-01-01T23:59:59.000Z

420

Oxidation pretreatment to reduce corrosion of 20%Cr-25%Ni-Nb stainless steel. I. Weight gain and oxide thickness measurements  

Science Conference Proceedings (OSTI)

The improvement in corrosion resistance afforded by a low-pressure selective oxidation pretreatment on 20%Cr-25%Ni-Nb steel is assessed in terms of weight gain and oxide thickness measurements. Both can and sheet specimens were oxidized in a simulated CAGR CO/sub 2/ environment at 823, 923, and 1073 K, and gravimetric gross weight-gain measurements were supplemented by spinel and Cr/sub 2/O/sub 3/ oxide thickness measurements determined by X-ray diffractometry (XRD). The increased protection provided by the pretreatment resulted in a reduction in gross weigh gain of 3-4 times at 823 K, two and three times at 923 K, and a somewhat smaller improvement at higher temperatures. The improvement stemmed from the high proportion of Cr/sub 2/O/sub 3/ selectively formed in the preoxide layer itself. Thermally induced lattice strains in the oxide scale have been assessed from measurements of lattice expansion by XRD.

Tempest, P.A.; Wild, R.K.

1988-10-01T23:59:59.000Z

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421

Survey of welding processes for field fabrication of 2 1/4 Cr-1 Mo steel pressure vessels. [128 references  

SciTech Connect

Any evaluation of fabrication methods for massive pressure vessels must consider several welding processes with potential for heavy-section applications. These include submerged-arc and shielded metal-arc, narrow-joint modifications of inert-gas metal-arc and inert-gas tungsten-arc processes, electroslag, and electron beam. The advantage and disadvantages of each are discussed. Electroslag welding can be dropped from consideration for joining of 2 1/4 Cr-1 Mo steel because welds made with this method do not provide the required mechanical properties in the welded and stress relieved condition. The extension of electron-beam welding to sections as thick as 4 or 8 inches (100 or 200 mm) is too recent a development to permit full evaluation. The manual shielded metal-arc and submerged-arc welding processes have both been employed, often together, for field fabrication of large vessels. They have the historical advantage of successful application but present other disadvantages that make them otherwise less attractive. The manual shielded metal-arc process can be used for all-position welding. It is however, a slow and expensive technique for joining heavy sections, requires large amounts of skilled labor that is in critically short supply, and introduces a high incidence of weld repairs. Automatic submerged-arc welding has been employed in many critical applications and for welding in the flat position is free of most of the criticism that can be leveled at the shielded metal-arc process. Specialized techniques have been developed for horizontal and vertical position welding but, used in this manner, the applications are limited and the cost advantage of the process is lost.

Grotke, G.E.

1980-04-01T23:59:59.000Z

422

Computational Modeling of Uranium Corrosion and the role of Impurities(Fe, Cr, Al, C and Si)  

DOE Green Energy (OSTI)

My talk will focus on our recent computational modeling results of uranium corrosion and the impact of impurities on uranium corrosion, which occurs primarily through hydriding Uranium hydriding is one of the most important processes that has received considerable attention over many years. Although significant number of experimental and modeling studies have been carried out concerning thermo chemistry, diffusion kinetics and mechanisms of U-hydriding, very little is known about the electronic structure and electronic features that govern the U-hydriding process. Our modeling efforts focus the electronic feature that controls the activation barrier and thus the rate of hydriding. Our recent efforts have been focused on the role of impurities such as Fe, Cr, Si, C, Al and so on. Moreover the role of impurities and the role of the product UH{sub 3} on hydriding rating have not been fully understood. Condon's diffusion model was found to be in excellent agreement with the experimental reaction rates. From the slopes of the Arrhenius plot the activation energy was calculated as 6.35 kcal/mole. Bloch and Mintz have discussed two models, one, which considers hydrogen diffusion through a protective UH{sub 3} product layer, and the second where hydride growth occurs at the hydride-metal interface. These authors obtained two-dimensional fits of experimental data to the pressure-temperature reactions. Powell et al. have studied U-hydriding in ultrahigh vacuum and obtained the linear rate data over a wide range of temperatures and pressures. They found reversible hydrogen sorption on the UH{sub 3} reaction product from kinetic effects at 21 C. This demonstrates restarting of the hydriding process in the presence of UH{sub 3} reaction product. DeMint and Leckey have shown that Si impurities dramatically accelerate the U-hydriding rates. We report our recent results of relativistic computations that vary from complete active space multi-configuration interaction (CAS-MCSCF) followed by multi-reference configuration interaction (MRSDCI) computations that included up to 60 million configurations for modeling of uranium-hydriding with cluster models will be presented. Our computed potential energy surface for the insertion of a U site into H{sub 2} reveals that pure U site has to surpass a barrier of 20.9 kcal/mole for the U-hydriding. Once the barrier is surpassed a stable product is formed which is 22.4 kcal/mole more stable than the reactants. We have also developed a computational model to study the role of the UH{sub 3} product and other impurities such as Fe, Cr, Si, C, Al, etc., on the uranium hydriding reaction. Our model reveals that the product UH{sub 3} is highly ionic and thus U transfers electron density to the three hydrogens resulting in a U{sup +3} state. U{sup +3} is shown to insert into H{sub 2} spontaneously thus demonstrating the U-site in the product UH{sub 3} binds to H{sub 2} spontaneously forming a complex in which H{sub 2} is separated far enough so as to cause liberation of H atoms in the presence of U. Our computed potential energy surfaces reveal a 21 kcal/mole activation energy barrier for pure U reaction with H{sub 2}. However, the presence of the product UH{sub 3} catalyzes the U-hydriding. We have also modeled the presence of Si impurities for the U-hydriding reaction to show that the activation barrier is lowered by the presence of Si. However carbon impurity does not influence the hydriding process. Our computations reveal an electron donor-acceptor model for the U-hydriding, where H{sub 2} exchanges electronic density from its occupied 1{sigma}{sub g} orbital to the U(6d {sigma}) orbital and back donation from the U(6d {pi}) orbital back to H{sub 2} 1{sigma}{sub u} antibonding orbital. As seen from the figures shown below our recent works show that elemental impurities such as Al do not have impact on hydriding, elements such as Fe and Cr have small impact while the elemental carbon inhibits corrosion through the formation of ionic uranium carbide species.

Balasubramanian, K; Sikehaus, W; Balazs, B; Mclean II, W

2005-10-31T23:59:59.000Z

423

NUREG/CR-6399  

Office of Scientific and Technical Information (OSTI)

399 399 ORNL- 6886 Results of Charpy V-Notch Impact Testing of Structural Steel Specimens Irradiated at - 30°C to 1 x 10l6 neutrons/cm2 in a Commercial Reactor Cavity Manuscript Completed June 1996 Date Published: April 1997 Prepared by S. K Iskander, R. E. Stoller Oak Ridge National Laboratory Managed by Lockheed Martin Energy Systems Oak Ridge National Laboratory Oak Ridge, TN 37831-6285 M. Vassilaros, NRC Project Manager Prepared for Division of Engineering Technology Office of Nuclear Regulatory Research U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 NRC Job Code L1098 Abstract A capsule containing Charpy V-notch (CVN) and mini-tensile specimens was irradiated at - 30°C (- 85°F) in the cavity of a commercial nuclear power plant to a fluence of 1

424

UCRL-CR--10  

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

-10 -10 4934 DE91 000814 PHOTOCONDUCTIVITY OF ACTIVATED CARBONFIBERS ' Ko Kuriyama Mo S. ,Dresselhaus MIT ...... ' Cambridge, Massachusetts ' MASTEB ,_ ' _Yii:i" ' £31STRIBUTION OFIT_"IIS DoCUMEt"JT IS L I?',_'-:'_ , I)IS('I,AIMI,',R Work pt`rforlnt`(I iiil(|t`r lilt' llll._illl'_-'_Of lilt' I J,,H, I)t, pllrl- mt`ni of i,_nt`r_)' I),_' l,=lwrt`n_'t` I,Ivi.,rmort` Ntllhrn=ll l,ld_or=_- Ior,_'mldc,r _'onlrzlct mlml}t`r W-74(15-1,1N(;.4X, 'l'hi,_ doc'mm..||l t_'=l.,_ prt`p=lrt`d =Is ==_l=lt'v,,,|ml o1' work _ptm._(!rvd I_)' IIn =lp, t`|lC')' 01' lht` (ll|ilt`(l ,_tiHl's (;|_vt`rnn|t`nt. Nvilht, r lht` I Inilt`d ,Sl=dL, s (;o_'t`rl|u|el|l mir Iht` t ll|i_'t`r_lt.,,'of ('lllifl)r,fl_l mrr lilLY o1"II,.,Ir v|lll_l_|)'t`t`_, I|mkt`_ _lll)' ,_'_mrr_lnl); exprt`_ or i|npllt`d, or _l_sl|i|lt`_ _|,ly lel_=lllhd)lilly i_r r¢'sl)(m- _ihilll)'

425

11554_cover_CR  

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

NERSC 2005 Annual Report National Energy Research Scientific Computing Center 05 NERSC 2005 Annual Report National Energy Research Scientific Computing Center Lawrence Berkeley National Laboratory / 1 Cyclotron Road / Berkeley CA / 94720 LBNL-60296 The Year in Perspective 2 Research News 4 The Heat Is On 5 Burning Questions 9 Combustion Up Close 11 Hailstones in Hell 13 A Perfect Liquid 15 Whispers from Underground 18 Breaking Up Is Hard to Calculate 20 Talent Scouting 23 Surface Charge 25 Magnetic Disks in Space 26 Proteins in Motion 30 NERSC Users Honored 34 The NERSC Center 35 Science-Driven Computing 36 DOE Greenbook Published 36 NERSC's Five-Year Plan 36 DOE Review of NERSC 37 Organizational Changes 38 Science-Driven Systems 40 Two New Clusters: Jacquard and Bassi 40 New Visual Analytics Server:

426

20844_JGI_20110308_CR  

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

model system for long-term observation and process-oriented studies of OMZ phenotypes. Production and Partial Characterization of a Novel Thermostable Xylanase by Newly Isolated...

427

Phase-field Model for Interstitial Loop Growth Kinetics and Thermodynamic and Kinetic Models of Irradiated Fe-Cr Alloys  

Science Conference Proceedings (OSTI)

Microstructure evolution kinetics in irradiated materials has strongly spatial correlation. For example, void and second phases prefer to nucleate and grow at pre-existing defects such as dislocations, grain boundaries, and cracks. Inhomogeneous microstructure evolution results in inhomogeneity of microstructure and thermo-mechanical properties. Therefore, the simulation capability for predicting three dimensional (3-D) microstructure evolution kinetics and its subsequent impact on material properties and performance is crucial for scientific design of advanced nuclear materials and optimal operation conditions in order to reduce uncertainty in operational and safety margins. Very recently the meso-scale phase-field (PF) method has been used to predict gas bubble evolution, void swelling, void lattice formation and void migration in irradiated materials,. Although most results of phase-field simulations are qualitative due to the lake of accurate thermodynamic and kinetic properties of defects, possible missing of important kinetic properties and processes, and the capability of current codes and computers for large time and length scale modeling, the simulations demonstrate that PF method is a promising simulation tool for predicting 3-D heterogeneous microstructure and property evolution, and providing microstructure evolution kinetics for higher scale level simulations of microstructure and property evolution such as mean field methods. This report consists of two parts. In part I, we will present a new phase-field model for predicting interstitial loop growth kinetics in irradiated materials. The effect of defect (vacancy/interstitial) generation, diffusion and recombination, sink strength, long-range elastic interaction, inhomogeneous and anisotropic mobility on microstructure evolution kinetics is taken into account in the model. The model is used to study the effect of elastic interaction on interstitial loop growth kinetics, the interstitial flux, and sink strength of interstitial loop for interstitials. In part II, we present a generic phase field model and discuss the thermodynamic and kinetic properties in phase-field models including the reaction kinetics of radiation defects and local free energy of irradiated materials. In particular, a two-sublattice thermodynamic model is suggested to describe the local free energy of alloys with irradiated defects. Fe-Cr alloy is taken as an example to explain the required thermodynamic and kinetic properties for quantitative phase-field modeling. Finally the great challenges in phase-field modeling will be discussed.

Li, Yulan; Hu, Shenyang Y.; Sun, Xin; Khaleel, Mohammad A.

2011-06-15T23:59:59.000Z

428

The impacts of cation stoichiometry and substrate surface quality on nucleation, structure, defect formation, and intermixing in complex oxide heteroepitaxy LaCrO3 on SrTiO3(001)  

Science Conference Proceedings (OSTI)

Our ability to design and fabricate electronic devices with reproducible properties using complex oxides is critically dependent on our ability to controllably synthesize these materials in thin-film form. Structure-property relationships are intimately tied to film and interface composition Here we report on the effect of cation stoichiometry on structural quality and defect formation in LaCrO3 heteroepitaxial films prepared using molecular beam epitaxy. We calculate from first principles the regions of stability of various candidate defects as a function of Cr and O chemical potential, along with the predicted effects of these defects on structural parameters. We show that epitaxial LaCrO3 films readily nucleate and remain coherently strained on SrTiO3(001) over a wide range of La-to-Cr atom ratios, but that La-rich films are of considerably lower structural quality than stoichiometric and Cr-rich films. Cation imbalances are accompanied by anti-site defect formation, as deduced by comparing experimental trends in the c lattice parameter with those from first-principles calculations. Cation mixing occurs at the interface for all La-to-Cr ratios investigated, and is not quenched by deposition on SrTiO3(001) at ambient temperature. Indiffused La atoms occupy Sr sites, most likely facilitated by Sr vacancy formation in STO resulting from high-temperature oxygen annealing required to prepare the substrate. Intermixing is effectively quenched by using molecular beam epitaxy to deposit LaCrO3 at ambient temperature on defect free Si(001). However, analogous pulsed laser deposition on Si is accompanied by cation mixing.

Qiao, Liang [ORNL; Zhang, K. H. L [Pacific Northwest National Laboratory (PNNL); Bowden, Mark E [Pacific Northwest National Laboratory (PNNL); Varga, Tamas [Pacific Northwest National Laboratory (PNNL); Shutthanandan, Vaithiyalingam [Pacific Northwest National Laboratory (PNNL); Colby, Robert [Pacific Northwest National Laboratory (PNNL); Du, Yingge [Pacific Northwest National Laboratory (PNNL); Kabius, Bernd [Pacific Northwest National Laboratory (PNNL); Sushko, Peter V [University College, London; Biegalski, Michael D [ORNL; Chambers, S. A. [Pacific Northwest National Laboratory (PNNL)

2013-01-01T23:59:59.000Z

429

(Ca/Sr)Au{sub x}Cd{sub 1-x}: Stacking variants of the CrB-FeB series  

SciTech Connect

The structural chemistry of binary 1:1 alkaline earth metallides A{sup II}M (M=p-block or late transition element) is dominated by planar M zig-zag chains, which are stacked in different orientations (CrB (c) to FeB (h) type) and with variable stacking distances (types I and II). As a case study of the electronic influences, the substitution of Au against Cd in the respective Ca and Sr aurides was examined by means of experimental, crystallographic and computational methods. Starting from CaAu, up to 11% of Au can be substituted by Cd without a change in the CrB structure type (orthorhombic, space group Cmcm, a=398.2(1), b=1122.6(6), c=460.9(2)pm, Z=4, R1=0.0303). Starting from SrAu (stacking sequence (hc){sub 2}(h{sub 2}c){sub 2}), depending on the proportion of the Cd substitution a successive change to structures with increased hexagonality is observed: In SrAu{sub 0.93}Cd{sub 0.07} (monoclinic, space group P2{sub 1}/m, a=621.3(4), b=472.4(2), c=1216.1(9)pm, beta=96.97(5){sup 0}, Z=6, R1=0.0467) the stacking sequence is h{sub 2c}, i.e. the hexagonality is 66.67%. A slightly more increased Cd content in SrAu{sub 0.78}Cd{sub 0.22} (orthorhombic, space group Pnma, a=3243.3(8), b=474.17(8), c=626.20(9)pm, Z=16, R1=0.0682) drives the hexagonality to 75%, with a (h{sub 3}c){sub 2} stacking sequence known from several rare earth nickel compounds. Further Cd substitution is not possible. However, in the Cd-rich section of the two series, where the CsCl/beta-brass structure type occurs for both alkaline earth elements, a small Au substitution, as determined from powder data by Rietveld refinements, is possible. The substitution limit and the stability ranges of the CsCl and the CrB type can be rationalized from the calculated band structures. Geometrical and electronic criteria are used to compare and discuss the stability ranges in a structural map. - SrAu{sub 0.93}Cd{sub 0.97}, one of the stacking sequences of the CrB/FeB structure type series found in the quasibinary section SrAu-SrCd.

Harms, Wiebke; Duerr, Ines; Daub, Michael [Institut fuer Anorganische und Analytische Chemie, University of Freiburg, Albertstr. 21, D-79104 Freiburg (Germany); Roehr, Caroline, E-mail: caroline@ruby.chemie.uni-freiburg.d [Institut fuer Anorganische und Analytische Chemie, University of Freiburg, Albertstr. 21, D-79104 Freiburg (Germany)

2010-01-15T23:59:59.000Z

430

Targeted Protein Degradation of Outer Membrane Decaheme Cytochrome MtrC Metal Reductase in Shewanella oneidensis MR-1 Measured Using Biarsenical Probe CrAsH-EDT2  

SciTech Connect

Development of efficient microbial biofuel cells requires an ability to exploit interfacial electron transfer reactions to external electron acceptors, such as metal oxides; such reactions occur in the facultative anaerobic gram-negative bacterium Shewanella oneidensis MR-1 through the catalytic activity of the outer membrane decaheme c-type cytochrome MtrC. Central to the utility of this pathway to synthetic biology is an understanding of cellular mechanisms that maintain optimal MtrC function, cellular localization, and renewal by degradation and resynthesis. In order to monitor trafficking to the outer membrane, and the environmental sensitivity of MtrC, we have engineered a tetracysteine tag (i.e., CCPGCC) at its C-terminus that permits labeling by the cell impermeable biarsenical fluorophore, carboxy-FlAsH (CrAsH) of MtrC at the surface of living Shewanella oneidensis MR-1 cells. In comparison, the cell permeable reagent FlAsH permits labeling of the entire population of MtrC, including proteolytic fragments resulting from incorrect maturation. We demonstrate specific labeling by CrAsH of engineered MtrC which is dependent on the presence of a functional type-2 secretion system (T2S), as evidenced by T2S system gspD or gspG deletion mutants which are incapable of CrAsH labeling. Under these latter conditions, MtrC undergoes proteolytic degradation to form a large 35-38 kDa fragment; this degradation product is also resolved during normal turnover of the CrAsH-labeled MtrC protein. No MtrC protein is released into the medium during turnover, suggesting the presence of cellular turnover systems involving MtrC reuptake and degradation. The mature MtrC localized on the outer membrane is a long-lived protein, with a turnover rate of 0.043 hr-1 that is insensitive to O2 concentration. Maturation of MtrC is relatively inefficient, with substantial rates of turnover of the immature protein prior to export to the outer membrane (i.e., 0.028 hr-1) that are consistent with the inherent complexity associated with correct heme insertion and acylation of MtrC that occurs in the periplasm prior to its targeting to the outer membrane. These latter results suggest that MtrC protein trafficking to the outer membrane and its subsequent degradation are tightly regulated, which is consistent with cellular processing pathways that target MtrC to extracellular structures and their possible role in promoting electron transfer from Shewanella to extracellular acceptors.

Xiong, Yijia; Chen, Baowei; Shi, Liang; Fredrickson, Jim K.; Bigelow, Diana J.; Squier, Thomas C.

2011-10-14T23:59:59.000Z

431

Argon-ion-pumped and diode-pumped all-solid-state femtosecond Cr:LiSrAlF{sub 6} regenerative amplifiers  

Science Conference Proceedings (OSTI)

A tunable femtosecond solid-state amplifier system that uses only 3 W of 488-nm argon-ion pump power has been demonstrated to deliver microjoule pulses at repetition rates up to 20 kHz, with a maximum pulse energy of 14 {mu}J obtained at 5 kHz. An all-solid-state, tunable, diode-pumped Cr:LiSrAlF{sub 6} regenerative amplifier has been demonstrated, for the first time to our knowledge, that amplifies femtosecond pulses to energies exceeding 1 {mu}J at up to a 16-kHz repetition rate.

Hyde, S.C.W.; Barry, N.P.; Mellish, R.; French, P.M.W.; Taylor, J.R. [Femtosecond Optics Group, Department of Physics, Imperial College of Science and Technology, Prince Consort Road, London SW7 2BZ (United Kingdom); van der Poel, C.J.; Valster, A. [Philips Optoelectronics Centre, Prof. Holstlann 4, 5656 AA Eindhoven (Netherlands)

1995-01-15T23:59:59.000Z

432

Relationship Between Grain Boundary Structure and Radiation Induced Segregation in a Neutron Irradiated 9 wt. % Cr Model Ferritic/Martensitic Steel  

Science Conference Proceedings (OSTI)

Ferritic/Martensitic (F/M) steels with high Cr content posses the high temperature strength and low swelling rates required for advanced nuclear reactor designs. Radiation induced segregation (RIS) occurs in F/M steels due to solute atoms preferentially coupling to point defect fluxes to defect sinks, such as grain boundaries (GBs). The RIS response of F/M steels and austenitic steels has been shown to be dependent on the local structure of GBs but has only been demonstrated in ion irradiated specimens. A 9 wt. % Cr model alloy steel was irradiated to 3 dpa using neutrons at the Advanced Test Reactor (ATR) to determine the effect of neutron radiation environment on the RIS-GB structure dependence. This investigation found the relationship between GB structure and RIS is also active for F/M steels irradiated using neutrons. The data generated from the neutron irradiation is also compared to RIS data generated using proton irradiations on the same heat of model alloy.

Field, Kevin G [ORNL] [ORNL; Miller, Brandon [Idaho National Laboratory (INL)] [Idaho National Laboratory (INL); Chichester, Heather J.M. [Idaho National Laboratory (INL)] [Idaho National Laboratory (INL); Sridharan, K. [University of Wisconsin, Madison] [University of Wisconsin, Madison; Allen, Todd R. [University of Wisconsin, Madison] [University of Wisconsin, Madison

2014-01-01T23:59:59.000Z

433

Evaluation of 2.25Cr-1Mo Alloy for Containment of LiCl/KCl Eutectic during the Pyrometallurgical Processing of Used Nuclear Fuel  

SciTech Connect

Recovery of uranium from the Mk-IV and Mk-V electrorefiner vessels containing a LiCl/KCl eutectic salt has been on-going for 14 and 12 years, respectively, during the pyrometallurgical processing of used nuclear fuel. Although austenitic stainless steels are typically utilized for LiCl/KCl salt systems, the presence of cadmium in the Mk-IV electrorefiner dictates an alternate material. A 2.25Cr-1Mo alloy (ASME SA-387) was chosen due to the absence of nickel in the alloy which has a considerable solubility in cadmium. Using the transition metal impurities (iron, chromium, nickel, molybdenum, and manganese) in the electrorefined uranium products, an algorithm was developed to derive values for the contribution of the transition metals from the various input sources. Weight loss and corrosion rate data for the Mk-V electrorefiner vessel were then generated based on the transition metal impurities in the uranium products. To date, the corrosion rate of the 2.25Cr-1Mo alloy in LiCl/KCl eutectic is outstanding assuming uniform (i.e. non-localized) conditions.

B.R. Westphal; S.X. Li; G.L. Fredrickson; D. Vaden; T.A. Johnson; J.C. Wass

2011-03-01T23:59:59.000Z

434

A CR-hydro-NEI Model of Multi-wavelength Emission from the Vela Jr. Supernova Remnant (SNR RX J0852.0-4622)  

E-Print Network (OSTI)

Based largely on energy budget considerations and the observed cosmic-ray (CR) ionic composition, supernova remnant (SNR) blast waves are the most likely sources of CR ions with energies at least up to the "knee" near 3 PeV. Shocks in young shell-type TeV-bright SNRs are surely producing TeV particles, but the emission could be dominated by ions producing neutral pion-decay emission or electrons producing inverse-Compton gamma-rays. Unambiguously identifying the GeV-TeV emission process in a particular SNR will not only help pin down the origin of CRs, it will add significantly to our understanding of the diffusive shock acceleration (DSA) mechanism and improve our understanding of supernovae and the impact SNRs have on the circumstellar medium. In this study, we investigate the Vela Jr. SNR, an example of TeV-bright non-thermal SNRs. We perform hydrodynamic simulations coupled with non-linear DSA and non-equilibrium ionization near the forward shock (FS) to confront currently available multi-wavelength data....

Lee, Shiu-Hang; Ellison, Donald C; Nagataki, Shigehiro; Patnaude, Daniel J

2013-01-01T23:59:59.000Z

435

Structurally-driven metal-insulator transition in Ca{sub 2}Ru{sub 1-x}Cr{sub x}O{sub 4} (0{<=}x<0.14): A single crystal X-ray diffraction study  

Science Conference Proceedings (OSTI)

Correlation between structure and transport properties are investigated in high-quality single-crystals of Ca{sub 2}Ru{sub 1-x}Cr{sub x}O{sub 4} with 013.5% and the system behaves as an insulator. Such a large, sharp metal-insulator transition and tuneable transition temperature may have potential applications in electronic devices. -- Graphical abstract: The metal-insulator transition temperature (T{sub MI}) was drastically reduced by Cr doping, and is closely related to the distortion of structure. Display Omitted Research highlights: {yields} The metal-insulator transition temperature (T{sub MI}) was drastically reduced by doping Cr into Ca{sub 2}RuO{sub 4} single crystal. {yields} Detailed single crystal structural analysis provided important insight into this structurally-driven metal-insulator transition. {yields} Negative Volume Thermal Expansion (NVTE) was observed with increasing temperature.

Qi, T.F., E-mail: tqi2@uky.ed [Center for Advanced Materials, University of Kentucky, Lexington, KY 40506 (United States); Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506 (United States); Ge, M. [Center for Advanced Materials, University of Kentucky, Lexington, KY 40506 (United States); High Magnetic Field Laboratory, University of Science and Technology of China, Hefei, Anhui 230026 (China); Korneta, O.B. [Center for Advanced Materials, University of Kentucky, Lexington, KY 40506 (United States); Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506 (United States); Parkin, S. [Center for Advanced Materials, University of Kentucky, Lexington, KY 40506 (United States); Department of Chemistry, University of Kentucky, Lexington, KY 40506 (United States); De Long, L.E.; Cao, G. [Center for Advanced Materials, University of Kentucky, Lexington, KY 40506 (United States); Department of Physics and Astronomy, University of Kentucky, Lexington, KY 40506 (United States)

2011-04-15T23:59:59.000Z

436

Partially disordered state and spin-lattice coupling in an S=3/2 triangular lattice antiferromagnet Ag2CrO2  

Science Conference Proceedings (OSTI)

Ag{sub 2}CrO{sub 2} is an S = 3/2 frustrated triangular lattice antiferromagnet without an orbital degree of freedom. With decreasing temperature, a four-sublattice spin state develops. However, a long-range partially disordered state with five sublattices abruptly appears at T{sub N} = 24 K, accompanied by a structural distortion, and persists at least down to 2 K. The spin-lattice coupling stabilizes the anomalous state, which is expected to appear only in limited ranges of further-neighbor interactions and temperature. It was found that the spin-lattice coupling is a common feature in triangular lattice antiferromagnets with multiple-sublattice spin states, since the triangular lattice is elastic.

Matsuda, Masaaki [ORNL; Yoshida, H. [National Institute for Materials Science, Tsukuba, Japan; Isobe, M. [National Institute for Materials Science, Tsukuba, Japan; De la cruz, Clarina [Oak Ridge National Laboratory (ORNL); Fishman, Randy Scott [ORNL

2012-01-01T23:59:59.000Z

437

A small angle neutron scattering investigation of the kinetics of phase separation in an Fe-27. 5 at. % Cr-5. 6 at. % Ni alloy  

Science Conference Proceedings (OSTI)

The small angle neutron scattering has been investigated in situ at 450{degree} and 500{degree}C for a polycrystalline, duplex Fe-27.5 at. % Cr-5.6 at. % Ni steel. A broad diffuse maximum in the scattering function is the signature of the {alpha}{prime}-phase formation, and this maximum is superimposed on a strong, temperature-dependent component due to critical magnetic scattering. The time dependence of the shift in the peak intensity position to lower scattering vectors and the increase in peak intensity obey power law scaling behavior. Furthermore, the structure function exhibits dynamical scaling, after about three hours annealing. It is suggested that this behavior could be utilized to predict the microstructure, and hence some of the properties, after significantly longer annealing times. 21 refs., 3 figs.

Epperson, J.E. (Argonne National Lab., IL (USA)); Rainey, V.S.; Windsor, C.G. (UKAEA Atomic Energy Research Establishment, Harwell (UK). Materials Physics and Metallurgy Div.); Hawick, K.A. (Edinburgh Univ. (UK). Dept. of Physics); Chen, H. (Illinois Univ., Urbana, IL (USA). Dept. of Materials Science and Engineering)

1990-10-01T23:59:59.000Z

438

Acceleration of ordering transformation of a new Fe{sub 2}(Mn,Cr)Si Heusler-alloy film by very high frequency plasma irradiation process during radio frequency sputter deposition  

Science Conference Proceedings (OSTI)

A new Heusler alloy, Fe{sub 2}(Mn,Cr)Si, that is likely to have high spin polarization (P) and high damping constant ({alpha}) was proposed to obtain high magneto-resistance ratio and low spin torque noise in a magnetic read head with a current-perpendicular-to-plane (CPP) giant magneto-resistance (GMR) multilayer. A very high frequency (VHF) plasma irradiation process during radio frequency (RF) sputter deposition was investigated to form the highly ordered structure of the Heusler alloy film with low thermal treatment temperature. The main results are as follows: (1) P and magnetic moment of Fe{sub 2}(Mn{sub 0.5}Cr{sub 0.5})Si with an L2{sub 1} structure were estimated at 0.99 and 2.49 {mu}{sub B}/f.u., respectively, and {alpha} was also estimated to be larger compared with the case of Co{sub 2}MnSi, according to density of states (DOS) calculations. (2) The ordering (at least B2 structure) temperature of Fe{sub 2}(Mn{sub 0.6}Cr{sub 0.4})Si film decreased from 500 to 300 deg. C by using the VHF plasma irradiation process with optimized condition. (3) The surface roughness of Fe{sub 2}(Mn{sub 0.6}Cr{sub 0.4})Si film also reduced from 1.7 to 0.5 nm by using the VHF plasma irradiation process. It is found that the Fe{sub 2}(Mn,Cr)Si Heusler alloy and the VHF plasma irradiation process with optimized condition seems to be applicable for fabrication of high-performance magnetic read head with CPP-GMR device.

Yoshimura, S.; Kobayashi, H.; Egawa, G.; Saito, H. [Center for Geo-environmental Science, Graduate School of Engineering and Resource Science, Akita University, Akita, 010-8502 (Japan); Ishida, S. [Department of Physics, Graduate School of Science and Engineering, Kagoshima University, Kagoshima, 890-8580 (Japan)

2011-04-01T23:59:59.000Z

439

Influence of a Cerium Surface Treatment on the Oxidation Behavior of Cr2O3-Forming Alloys (title on slides varies: Oxidation Behavior of Cerium Surface Treated Chromia Forming Alloys)  

SciTech Connect

Current goals of the U.S. Department of Energy’s Advanced Power Systems Initiatives include coal generation at 60% efficiency, which would require steam temperatures of up to 760°C. This temperature will require the construction of boiler and turbine components from austenitic stainless steels and nickel alloys. Many of the alloys being considered for use are primarily Cr2O3 forming alloys [1-4]. It is well known that the addition of a small amount of reactive elements, such as the rare earths elements Ce, La, and Y, can significantly improve the high temperature oxidation resistance of both iron- and nickel- base alloys. A list of the benefits of the reactive element effect include: (i) slowing scale growth, (ii) enhancing scale adhesion; and (iii) stabilizing Cr2O3 formation at lower Cr levels. The incorporation of the reactive element can be made in the melt or through a surface infusion or surface coating. Surface modifications allow for the concentration of the reactive element at the surface where it can provide the most benefit. This paper will detail a Ce surface treatment developed at NETL that improves the high temperature oxidation resistance of Cr2O3 forming alloys. The treatment consists of painting, dip coating, or spraying the alloy surface with a slurry containing CeO2 and a halide activator followed by a thermal treatment in a mild (x10-3 Torr) vacuum. During treatment the CeO2 reacts with the alloy to for a thin CrCeO3-type scale on the alloy surface. Upon subsequent oxidation, scale growth occurs at a reduced rate on alloys in the surface treated condition compared to those in the untreated condition.

Alman, D.E.; Holcomb, G.R.; Adler, T.A.; Jablonski, P.D.

2007-04-01T23:59:59.000Z

440

TEAM 1 Drivers License.doc  

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

I I Core Status: new users must complete 2 training sessions and pass a sample exchange exam to work independently during Core sessions (regular work hours). Flex Status: core users must complete 5 Core sessions and pass a driving test to work during Flex sessions (evening and weekend hours). All TEAM I scheduling must be coordinated through Peter Ercius at PErcius@lbl.gov. You may only be assigned two sessions per month. CORE LICENSE TEST Safety  Understand emergency shutdown procedure  Understand potential X-ray hazards of the modified instrument and shielding  Read and understand the Low Dose Machine Authorization document  Recognize high voltage hazards with the TEAM stage  Demonstrate handling of column valves  Point out where emergency contact numbers are posted

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441

Overload protection circuit for output driver  

DOE Patents (OSTI)

A protection circuit for preventing excessive power dissipation in an output transistor whose conduction path is connected between a power terminal and an output terminal. The protection circuit includes means for sensing the application of a turn on signal to the output transistor and the voltage at the output terminal. When the turn on signal is maintained for a period of time greater than a given period without the voltage at the output terminal reaching a predetermined value, the protection circuit decreases the turn on signal to, and the current conduction through, the output transistor.

Stewart, Roger G. (Neshanic Station, NJ)

1982-05-11T23:59:59.000Z

442

Biomass Burning: A Driver for Global Change!  

Science Conference Proceedings (OSTI)

Biomass burning includes the burning of the world''s vegetation---forests, savannas, and agricultural lands---to clear the land and change its use. Only in the past decade have researchers realized the important contributions of biomass burning to the ...

Levine J. S.; III W. R. Cofer; Jr D. R. Cahoon; Winstead E. L.

1995-01-01T23:59:59.000Z

443

Sustainability : driver for decision making in infrastructure.  

E-Print Network (OSTI)

??With the growing importance of sustainability assessment in the construction industry, many green building rating schemes have been adopted in the building sector of Australia.… (more)

Leong, Siew Neng Franks

2010-01-01T23:59:59.000Z

444

In the Driver's Seat: Rico and Education  

Science Conference Proceedings (OSTI)

The Rain in Cumulus over the Ocean (RICO) field campaign carried out a wide array of educational activities, including a major first in a field project—a complete mission, including research flights, planned and executed entirely by students. ...

Robert M. Rauber; Harry T. Ochs III; Marilé Colón-Robles; Anne Marie Hertel; Erin Riepe; Sarah Scalia; Eric Snodgrass; Bjorn Stevens; Jennifer Davison; Simona Bordoni; Brian Medeiros; Panu Trivej; Sabine Göke; Olga L. Mayol-Bracero; Humberto Caro-Gautier; Maylissa Deliz; Yarilis Méndez-Lopez; Flavia Morales-García; Diana L. Ortiz-Montalvo; David Rogers; Charles Knight; Jorgen Jensen; Paquita Zuidema; Shaunna Donaher; Virendra Ghate; Ieng Jo; Kristen Rasmussen; Efthymios Serpetzoglou; Sarah Bereznicki; Colleen Henry; Ela Grzeszczak; Michael Kruk; Jason Lowenstein; Judith Malley; Subhashree Mishra; Louise A. Nuijens; Dennis O'Donnell; Haiwei Shen; Michael Siedsma; Jennifer Small; Jonathan Zawislak

2007-12-01T23:59:59.000Z

445

Key Drivers Affecting the Outlook for Renewables  

U.S. Energy Information Administration (EIA)

Source: EIA, Annual Energy Outlook 2013 Early Release, International Energy Outlook 2011 . ... AECO Germany - BEB Hub Netherlands - TTF Belgium - Zeebrugge

446

SRS Salt Waste Processing Mission Technology Driver ...  

C. S. Weston, Savannah River Remediation LLC We do the right thing S A V A N N A H R I V E R S I T E A I K E N , S ...

447

proton_driver_rev10.PDF  

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

400 1000 Peak current (mA) 40 60 80 Pulse length (s) 25 80 200 H - per pulse 6.3 10 12 3 10 13 1 10 14 Average beam current (A) 15 72 240 Beam power (kW) 6 29 240...

448

The Future Electricity Fuels Mix: Key Drivers  

U.S. Energy Information Administration (EIA)

cogeneration . Howard Gruenspecht Electric Power, May 15, 2012 . 2010 . Examples of updated environmental retrofit costs . 10 . Howard ...

449