Sample records for louis mo usa

  1. 2008 IEEE Swarm Intelligence Symposium St. Louis MO USA, September 21-23, 2008

    E-Print Network [OSTI]

    Havens, Timothy

    2008 IEEE Swarm Intelligence Symposium St. Louis MO USA, September 21-23, 2008 Roach Infestation of the PSO algorithm, entitled Roach Infestation Optimization (RIO), that is inspired by recent discoveries discoveries in the behavior of cockroaches are the inspiration for our proposed algorithm, Roach Infestation

  2. DOE - Office of Legacy Management -- St Louis University - MO 0-02

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling Corp -K LeDowntown Site - MO 02 FUSRAPSt Louis

  3. B. Fegley, Jr. Washington University, St. Louis, MO, USA

    E-Print Network [OSTI]

    Fegley Jr., Bruce

    years later observations of the 1769 solar transit (including those made by Captain Cook's expedition.19.3.4 Atmospheric Dynamics 497 1.19.3.5 Upper Atmosphere and Solar-wind Interactions 497 1.19.4 SURFACE AND INTERIOR) model of the solar system was wrong and that the heliocentric (Copernican) model was correct. About

  4. Using Qualified Energy Conservation Bonds (QECBs) to Fund a Residential Energy Efficiency Loan Program: Case Study on Saint Louis County, MO

    SciTech Connect (OSTI)

    Zimring, Mark

    2011-06-23T23:59:59.000Z

    Qualified Energy Conservation Bonds (QECBs) are federally-subsidized debt instruments that enable state, tribal, and local government issuers to borrow money to fund a range of qualified energy conservation projects. QECBs offer issuers very attractive borrowing rates and long terms, and can fund low-interest energy efficiency loans for home and commercial property owners. Saint Louis County, MO recently issued over $10 million of QECBs to finance the Saint Louis County SAVES residential energy efficiency loan program. The county's experience negotiating QECB regulations and restrictions can inform future issuers.

  5. DOE - Office of Legacy Management -- St Louis Downtown Site - MO 02

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling Corp -K LeDowntown Site - MO 02 FUSRAP

  6. Using Qualified Energy Conservation Bonds (QECBs) to Fund a Residential Energy Efficiency Loan Program: Case Study on Saint Louis County, MO

    E-Print Network [OSTI]

    Zimring, Mark

    2012-01-01T23:59:59.000Z

    2011 Using Qualified Energy Conservation Bonds (QECBs) toCounty, MO Qualified Energy Conservation Bonds (QECBs) arerange of qualified energy conservation projects. QECBs offer

  7. St. Louis Sites Fact Sheet NORTH ST. LOUIS SITES

    E-Print Network [OSTI]

    US Army Corps of Engineers

    to the Lambert-St. Louis International Airport, which is now referred to as the St. Louis Airport Site (SLAPS

  8. LANSCE | About LANSCE | Louis Rosen

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

    at the George shot, Louis made the measurements that proved Teller's concept for a thermonuclear bomb would work. Steeped in the culture of those heroic times, Louis conceived of...

  9. Set the PACE St. Louis

    Broader source: Energy.gov [DOE]

    Commercial property owners, community associations (e.g., Home Owners Associations), and some residential property owners are eligible for Set the PACE St. Louis. Currently, only residential prop...

  10. Louis Freels | Y-12 National Security Complex

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

    Louis Freels Louis Freels Oral History Videos Speakers INTRODUCTION Ed Bailey Jim Bailey Kay Bailey Ken Bernander Willard Brock Wilma Brooks Elmer Brummitt Naomi Brummitt Blake...

  11. Applied inductive learning Louis Wehenkel

    E-Print Network [OSTI]

    Wehenkel, Louis

    problems 20 2.3.1 Classes 20 2.3.2 Types of classi cation problems 20 2.3.3 Learning and test sets 21 2Applied inductive learning Louis Wehenkel University of Li`ege Faculty of Applied Sciences Course;#12;APPLIED INDUCTIVE LEARNING COURSE NOTES : OCTOBER 2000 LOUIS A. WEHENKEL University of Li#12;ege

  12. Applied inductive learning Louis Wehenkel

    E-Print Network [OSTI]

    Wehenkel, Louis

    .3.2 Types of classification problems 20 2.3.3 Learning and test sets 21 2.3.4 Decision or classificationApplied inductive learning Louis Wehenkel University of Liâ??ege Faculty of Applied Sciences Courseâ??e'' #12; #12; APPLIED INDUCTIVE LEARNING COURSE NOTES : OCTOBER 2000 LOUIS A. WEHENKEL University of Li

  13. Louis de Branges: home

    E-Print Network [OSTI]

    ... IN 47907 USA, 765-494-4600. An equal access/equal opportunity university. Accessibility issues? Contact the Web Editor (webeditor@math.purdue.edu).

  14. Summary of Activities at the ST LOUIS NORTH COUNTY SITE

    E-Print Network [OSTI]

    US Army Corps of Engineers

    -St. Louis International Airport, which is now referred to as the St. Louis Airport Site (SLAPS). In 1966

  15. NORTH ST. LOUIS COUNTY SITES ANNUAL ENVIRONMENTAL

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Airport Site and St. Louis Airport Site Vicinity Properties CY 2010 Remedial Actions.3.1 Latty Avenue Properties CY 2010 Remedial Actions...................................1-3 1.3.2 St. Louis

  16. NORTH ST. LOUIS COUNTY SITES ANNUAL ENVIRONMENTAL

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Airport Site and St. Louis Airport Site Vicinity Properties CY 2012 Remedial Actions.3.1 Latty Avenue Properties CY 2012 Remedial Actions...................................1-3 1.3.2 St. Louis

  17. A NEW ROBOT DESIGN TO PASSIVELY DAMP FLEXIBLE ROBOTIC ARMS Louis J. Everett

    E-Print Network [OSTI]

    Everett, Louis J.

    applications as well as the Department of Energy's Environmental Waste Management projects. Most of the robotsA NEW ROBOT DESIGN TO PASSIVELY DAMP FLEXIBLE ROBOTIC ARMS Louis J. Everett Mechanical and Industrial Engineering University of Texas El Paso USA Marc Compere Mechanical Engineering Department

  18. ST. LOUIS AIRPORT/ HAZELWOOD INTERIM

    E-Print Network [OSTI]

    and remote disposal of contaminated soils on various private properties, under removal action authority the Airport resulted in the contamination of numerous private and municipally owned properties. The St. Louis radioactively-contaminated sites are part of the Formerly Utilized Sites Remedial Action Program (FUSRAP

  19. LICENSE HISTORY MO.8 Petrolite Corporation, St. Louis

    Office of Legacy Management (LM)

    et al Multiple. . 70-621, 12-15-61, SNM license for 0.5 kg. of U-235, 93% enriched as a fuel loading and star-up curce for Webster Groves, Missouri reactor. l Discussion:...

  20. d::;":,",:::,, ST. LOUIS.7. MO,

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling7 AugustAFRICAN3uj:'I,\ W CThe Columbus East,i ,'

  1. DOE - Office of Legacy Management -- St Louis Airport - MO 01

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling Corp -K Le BlondSantaWyomingSlickKSSpook

  2. Reliability of functional localization using fMRI Khena M. Swallow, Todd S. Braver, Abraham Z. Snyder, Nicole K. Speer,

    E-Print Network [OSTI]

    Zacks, Jeffrey M.

    . Snyder, Nicole K. Speer, and Jeffrey M. Zacks* Washington University, St. Louis, MO 63130-1125, USA

  3. PROPOSED PLAN FOR THE ST. LOUIS NORTH COUNTY SITE

    E-Print Network [OSTI]

    US Army Corps of Engineers

    remedial investigation RME reasonable maximum exposure ROD Record of Decision SLAPS St. Louis Airport Site

  4. Summary of Activities at the ST LOUIS NORTH COUNTY SITE

    E-Print Network [OSTI]

    US Army Corps of Engineers

    International Airport, which is now referred to as the St. Louis Airport Site (SLAPS). In 1966, the SLAPS wastes

  5. Baseline risk assessment for exposure to contaminants at the St. Louis Site, St. Louis, Missouri

    SciTech Connect (OSTI)

    Not Available

    1993-11-01T23:59:59.000Z

    The St. Louis Site comprises three noncontiguous areas in and near St. Louis, Missouri: the St. Louis Downtown Site (SLDS), the St. Louis Airport Storage Site (SLAPS), and the Latty Avenue Properties. The main site of the Latty Avenue Properties includes the Hazelwood Interim Storage Site (HISS) and the Futura Coatings property, which are located at 9200 Latty Avenue. Contamination at the St. Louis Site is the result of uranium processing and disposal activities that took place from the 1940s through the 1970s. Uranium processing took place at the SLDS from 1942 through 1957. From the 1940s through the 1960s, SLAPS was used as a storage area for residues from the manufacturing operations at SLDS. The materials stored at SLAPS were bought by Continental Mining and Milling Company of Chicago, Illinois, in 1966, and moved to the HISS/Futura Coatings property at 9200 Latty Avenue. Vicinity properties became contaminated as a result of transport and movement of the contaminated material among SLDS, SLAPS, and the 9200 Latty Avenue property. This contamination led to the SLAPS, HISS, and Futura Coatings properties being placed on the National Priorities List (NPL) of the US Environmental Protection Agency (EPA). The US Department of Energy (DOE) is responsible for cleanup activities at the St. Louis Site under its Formerly Utilized Sites Remedial Action Program (FUSRAP). The primary goal of FUSRAP is the elimination of potential hazards to human health and the environment at former Manhattan Engineer District/Atomic Energy Commission (MED/AEC) sites so that, to the extent possible, these properties can be released for use without restrictions. To determine and establish cleanup goals for the St. Louis Site, DOE is currently preparing a remedial investigation/feasibility study-environmental impact statement (RI/FS-EIS). This baseline risk assessment (BRA) is a component of the process; it addresses potential risk to human health and the environment associated wi

  6. Engineering evaluation/cost analysis for decontamination at the St. Louis Downtown Site, St. Louis, Missouri

    SciTech Connect (OSTI)

    Picel, M.H.; Hartmann, H.M.; Nimmagadda, M.R. (Argonne National Lab., IL (USA)); Williams, M.J. (Bechtel National, Inc., Oak Ridge, TN (USA))

    1991-05-01T23:59:59.000Z

    The US Department of Energy (DOE) is implementing a cleanup program for three groups of properties in the St. Louis, Missouri, area: the St. Louis Downtown Site (SLDS), the St. Louis Airport Site (SLAPS) and vicinity properties, and the Latty Avenue Properties, including the Hazelwood Interim Storage Site (HISS). The general location of these properties is shown in Figure 1; the properties are referred to collectively as the St. Louis Site. None of the properties are owned by DOE, but each property contains radioactive residues from federal uranium processing activities conducted at the SLDS during and after World War 2. The activities addressed in this environmental evaluation/cost analysis (EE/CA) report are being proposed as interim components of a comprehensive cleanup strategy for the St. Louis Site. As part of the Department's Formerly Utilized Sites Remedial Action Program (FUSRAP), DOE is proposing to conduct limited decontamination in support of proprietor-initiated activities at the SLDS, commonly referred to as the Mallinckrodt Chemical Works. The primary goal of FUSRAP activity at the SLDS is to eliminate potential environmental hazards associated with residual contamination resulting from the site's use for government-funded uranium processing activities. 17 refs., 3 figs., 5 tabs.

  7. MO. REV. MO. MAGNETIC CLEANLINESS GUIDELINES

    E-Print Network [OSTI]

    Rathbun, Julie A.

    MO. REV. MO. ATM-865 MAGNETIC CLEANLINESS GUIDELINES PAGE 1 Of 3 DATE 4/6/70 The purpose of this ATM is to update the ALSEP Magnetic Cleanliness Guidelines as delineated in A TM-294, dated 1 June. ATM-865 MAGNETIC CLEANLINESS GUIDELINES PAGE 2 OF 3 DATE 4/6/70 A review of the ALSEP Magnetic

  8. Control of Spacecraft in Proximity Orbits Louis Scott Breger

    E-Print Network [OSTI]

    How, Jonathan P.

    Control of Spacecraft in Proximity Orbits by Louis Scott Breger Bachelor of Science Aeronautics INSTITUTE OF TECHNOLOGY June 2007 c Louis Scott Breger, MMVII. All rights reserved. The author hereby grants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Jonathan P. How Associate Professor of Aeronautics and Astronautics Thesis Supervisor Accepted

  9. St. Louis Airport site environmental report for calendar year 1989, St. Louis, Missouri

    SciTech Connect (OSTI)

    Not Available

    1990-05-01T23:59:59.000Z

    The environmental monitoring program, which began in 1984, continued during 1989 at the St. Louis Airport Site (SLAPS) in St. Louis County, Missouri. SLAPS and its vicinity properties, including ditches north and south of the site, were designated for cleanup as part of the Formerly Utilized Sites Remedial Action Program (FUSRAP), a United States Department of Energy (DOE) program to identify and decontaminate or otherwise control sites where residual radioactive material remains from the early years of the nation's atomic energy program. The monitoring program at SLAPS measures radon concentrations in air; external gamma dose rates; and uranium, thorium, and radium concentrations in surface water, groundwater, and sediment. Additionally, several nonradiological parameters are measured in groundwater. To assess the potential effect of SLAPS on public health, the potential radiation dose was estimated for a hypothetical maximally exposed individual. This report presents the findings of the environmental monitoring program conducted at the St. Louis Airport Site (SLAPS) during calendar year 1989. 19 refs., 13 figs., 14 tabs.

  10. The final Record of Decision for the St. Louis North County Sites (ROD) presents the final remedy for cleanup of sites in North St. Louis County that

    E-Print Network [OSTI]

    US Army Corps of Engineers

    with the nation's early atomic program. These sites consist of the St. Louis Airport Site (SLAPS), SLAPS Vicinity

  11. International Trade and Sustainability: A survey Louis Dupuy

    E-Print Network [OSTI]

    Boyer, Edmond

    International Trade and Sustainability: A survey Louis Dupuy LAREFI Working Paper N°2012-01 April, institutions and international trade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3 International trade in the sustainability literature 11 3.1 Openness and sustainability

  12. St. Louis County- Residential Energy Efficiency Loan Program

    Broader source: Energy.gov [DOE]

    St. Louis County SAVES offers loans to residents for energy efficiency improvements in owner-occupied, single-family homes. Loans are available for a variety of energy-efficiency improvements, as...

  13. Louis H. Everts: American Atlas Publisher and Entrepreneur

    E-Print Network [OSTI]

    Moak, Jefferson M.

    2009-06-08T23:59:59.000Z

    Louis H. Everts was a native of New York, resident of Illinois, and publisher in Chicago, Philadelphia and Buffalo. His life and business practices illustrate the growth and changes in American county map publishing between the post Civil War period...

  14. EECBG Success Story: St. Louis Launches Plan for More Sustainable...

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

    Using money from the Energy Efficiency Block Grant Program, St. Louis installed new LED fixtures in the City Hall parking structure. The new lights deliver more useful light and...

  15. MO"BIUS-INVARIANT KNOT ENERGIES R.B. KUSNER

    E-Print Network [OSTI]

    Sullivan, John M.

    for divergence-free vector fields which arise in modeling incompressible fluid flow.6,7These new knot energies MO"BIUS-INVARIANT KNOT ENERGIES R.B. KUSNER, Urbana, IL, USA 61801-2975 There has been recent interest in knot energies among mathematicians

  16. MO"BIUS-INVARIANT KNOT ENERGIES R.B. KUSNER

    E-Print Network [OSTI]

    for divergence-free vector fields which arise in modeling incompressible fluid flow.? These new knot energies may MO"BIUS-INVARIANT KNOT ENERGIES R.B. KUSNER, Urbana, IL, USA 61801-2975 There has been recent interest in knot energies among mathematicians

  17. Public health assessment for St. Louis Airport, Hazelwood Interim Storage/Futura Coatings Company, St. Louis, St. Louis County, Missouri, Region 7. Cerclis No. MOD980633176. Preliminary report

    SciTech Connect (OSTI)

    Not Available

    1994-01-20T23:59:59.000Z

    The St. Louis Airport/Hazelwood Iterim Storage/Futura Coatings Company, a National Priorities List site, is in St. Louis County, Missouri. From 1946 to 1973, the site was used to store radioactive materials resulting from uranium processing. High levels of uranium, thorium, radium, and radon were detected in soil, groundwater, and air. The site is still being used to store radioactive materials. The Agency for Toxic Substances and Disease Registry considers the St. Louis Airport site to be an indeterminate public health hazard. Although there are emissions of radon and the presence of thorium in on-site air and off-site soils and the emission of radiation resulting from the presence of these materials is not currently considered a health hazard. At present conditions, the concentration of radon off-site is indistinguishable from background levels. However, in the past, these contaminants may have been present at levels of health concern.

  18. MINUTES: TTCC/NCC Fall Meeting October 6-8, 2009 St. Louis, MO

    E-Print Network [OSTI]

    : · Have you found any indication that air bubbles that are too small will affect freeze-thaw? No, not yet in Utah, both refining plants are not producing and Utah DOT has switched to concrete. · Salt Lake County

  19. TTCC/NCC Fall Meeting October 6-8, 2009 St. Louis, MO

    E-Print Network [OSTI]

    yield on concrete overlays (overruns) ListServe -- Sabrina Shields-Cook · A ListServe made up of all becomes more costly, solar and wind become more attractive. 11:30 am ADJOURN #12;

  20. Application to Export Electric Energy OE Docket No. EA-359 Louis...

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

    Application to Export Electric Energy OE Docket No. EA-359 Louis Dreyfus Energy Services L.P. Application from Louis Dreyfus Energy Services L.P. to export electric energy to...

  1. Urban League of St. Louis Ramps Up Weatherization Production and Hiring

    Broader source: Energy.gov [DOE]

    Why some residents in St. Louis are doing a double take when looking at the savings on their energy bills.

  2. Fusion Engineering and Design 38 (1997) 325 Overview of the ARIES-RS reversed-shear tokamak power

    E-Print Network [OSTI]

    Najmabadi, Farrokh

    1997-01-01T23:59:59.000Z

    General Atomics, San Diego, CA 92186, USA g McDonnell Douglas Aerospace, St. Louis, MO 63166, USA h Idaho-cooled lithium blanket with vanadium alloy as the structural material. The V-alloy has low activation, low

  3. A Review of "Milton and Maternal Mortality" by Louis Schwartz

    E-Print Network [OSTI]

    McPherson, Kathryn R.

    2010-01-01T23:59:59.000Z

    a plot of the current date points is a chimera? (453-54). I suspect that Hill, and Fish, would rather be further from the truth than closer. This is why, in a variorum commentary, we should try to get as close to the ?present? as possible. Louis... Schwartz. Milton and Maternal Mortality. Oxford: Oxford University Press, 2009. xi + 269 pp. $90. Review by kathryn r. mcpherson, utah valley university. Louis Schwartz?s Milton and Maternal Mortality, a study of John Milton?s poetic exploration...

  4. St. Louis Sites Fact Sheet WHAT IS FUSRAP?

    E-Print Network [OSTI]

    US Army Corps of Engineers

    remediation program. It addresses radiological contamination generated by activities of the Manhattan Engineer operated as a uranium extrusion and rod-straightening facility. Contamination is now in dust located (USACE), St. Louis District, is conducting a radiological cleanup program for four Missouri sites (SLDS

  5. Summary of Activities at the ST. LOUIS DOWNTOWN SITE

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Ameren UE Cash Scrap Metals Cotto-Waxo Star Bedding Company Christiana Court LLC (Former) Curly Collins Salt South PSC Metals Inc. St. Louis Metropolitan Sewer District Lift Station Midtown Garage Hjersted 11 Richey Farve Tobin Electric Worth Industries Bremen Bank Eirten's Parlors UAAA Local 1887 Dillion

  6. St. Louis airport site annual environmental report for calendar year 1990, St. Louis, Missouri

    SciTech Connect (OSTI)

    Not Available

    1991-08-01T23:59:59.000Z

    Environmental monitoring of the US Department of Energy's (DOE) St. Louis Airport Site (SLAPS) and surrounding area began in 1984. SLAPS is part of the Formerly Utilized Sites Remedial Action Program (FUSRAP), a DOE program to decontaminate or otherwise control sites where residual radioactive materials remain from the early years of the nation's atomic energy program or from commercial operations causing conditions that Congress has authorized DOE to remedy. Monitoring results are compared with applicable Environmental Protection Agency (EPA) standards; federal, state, and local applicable or relevant and appropriate requirements (ARARs); and/or DOE derived concentration guidelines (DCGs). Environmental standards, ARARs, and DCGs are established to protect public health and the environment. Results from the 1990 environmental monitoring program demonstrated that the concentrations of contaminants of concern were all below applicable standards, ARARs, and guidelines. Site activities in 1990 were limited to maintenance. SLAPS was in compliance with all applicable regulations during 1990 and has remained in compliance since 1984, when the environmental monitoring program and remedial action began.

  7. St. Louis FUSRAP-A Strategy for Success

    SciTech Connect (OSTI)

    Lyerla, M.; Fox, B.; Chinnock, J.; Haase, A.; Wojinski, S.; Bretz, M.; Cotner, S.; Dellorco, L.; Mueller, D.; Roberts, S.; Overmohle, D.

    2002-02-27T23:59:59.000Z

    In October 1997, Congress transferred the Formerly Utilized Sites Remedial Action Program (FUSRAP) from the Department of Energy (DOE) to the United States Army Corps of Engineers (USACE). FUSRAP addresses contamination generated by activities of the Manhattan Engineering District and the Atomic Energy Commission during the 1940's and 50's in support of the nation's nuclear weapons development program. The USACE Operation Order for FUSRAP gave responsibility for remediation of five sites in Missouri and Illinois to the USACESt. Louis District. The principal site is the St. Louis Airport Site (SLAPS), which involves the removal, transportation, disposal, and restoration of approximately 28 acres and 245,000 bank cubic yards (bcy) of contaminated soils. This paper will focus on the progress and achievements in removal action efficiencies of the SLAPS team. This team consists primarily of the USACE and Stone & Webster, Incorporated.

  8. Ethanol Conversion on Cyclic (MO3)3 (M = Mo, W) Clusters. | EMSL

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

    Conversion on Cyclic (MO3)3 (M Mo, W) Clusters. Ethanol Conversion on Cyclic (MO3)3 (M Mo, W) Clusters. Abstract: Oxides of molybdenum and tungsten are an important class of...

  9. Offshore Wind Power USA

    Broader source: Energy.gov [DOE]

    The Offshore Wind Power USA conference provides the latest offshore wind market updates and forecasts.

  10. Louis Hartlooper Complex en USBO (onderdeel van de Universiteit Utrecht) organiseren een

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Louis Hartlooper Complex en USBO (onderdeel van de Universiteit Utrecht) organiseren een filmreeks Bestuurs- en Organisatie- wetenschap (USBO) van de Universiteit Utrecht een korte inleiding bij iedere film. Na afloop kunnen bezoekers met hen in gesprek. Louis Hartlooper Complex & Universiteit Utrecht Het

  11. Northeast St. Louis, Minnesota: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall,Missouri: Energy ResourcesGranby,Plains,Northampton,St. Louis, Minnesota:

  12. Bioactive and functional properties of phenolic compounds from new sources of edible plant tissues

    E-Print Network [OSTI]

    Cevallos, Bolivar Alejandro

    2001-01-01T23:59:59.000Z

    , Norway) having HPLC purity of 97'/o. Chlorogenic acid, Trolox, DPPH, sodium carbonate and Folin-Ciocalteu were purchased from Sigma Chemical Co. (St. Louis, Mo. , USA). Hydrochloric acid, methanol and hexane were purchased from EM Science (a division...

  13. A qualitative analysis of glycosaminoglycans in the reproductive tract of mares

    E-Print Network [OSTI]

    Santos, Elizabeth Castro Franca

    1993-01-01T23:59:59.000Z

    units/ml penicillin, 10 mg streptomycin/ml and 25 Itg/ml amphotercin B; Gibco Company, Grand Island, NY) and I'/0 (w/v) bovine sera albumin (Sigma Chemical Company, St. Louis, MO, USA). Specimens were transported on ice to the laboratory. Ovaries were..., St. Louis, MO, USA), followed by incubation with Texas Red when cell cultures were at 50'/0 confluency. Epithelial cells were then visualized using fluorescence microscopy . According to this inununolabel procedure, purity of epithelial cells...

  14. The effect of glycosylation on physicochemical and functional properties of soy glycinin

    E-Print Network [OSTI]

    Lee, Hyungok

    1999-01-01T23:59:59.000Z

    and structure of carbohydrate on the glycosylation of the protein. 17 CHAPTER III MATERIALS AND METHODS Materials. Glycinin was prepared from soybean flour (Type 1: not roasted, Sigma Chemical Co. , St. Louis, MO, USA). SDS (sodium dodesyl sulfate...-sulfuric acid) were purchased from Sigma Co (St. Louis, MO, USA), Preparation of Glycinin. Glycinin was prepared according to Thanh and Shibasaki (1976) with some modifications. The defatted flours (100 g) were suspended in 0. 03 M phosphate buffer (1000 m...

  15. Results of mobile gamma scanning activities in St. Louis, Missouri

    SciTech Connect (OSTI)

    Rodriguez, R E; Witt, D A; Cottrell, W D; Carrier, R F

    1991-06-01T23:59:59.000Z

    From 1942 through approximately 1966, the Mallinckrodt Chemical Works operated four plants in St. Louis, Missouri, for the Manhattan Engineer District and the Atomic Energy Commission. A variety of production processes using uranium- and radium-bearing ore materials were performed at the plants. It is the policy of the DOE to verify that radiological conditions at such sites or facilities comply with current DOE guidelines. Guidelines for release and use of such sites have become more stringent as research has provided more information since previous cleanups. The Formerly Utilized Sites Remedial Action Program (FUSRAP) was established as part of that effort to confirm the closeout status of facilities under contract to agencies preceding DOE during early nuclear energy development. Under the FUSRAP program, the Mallinckrodt properties have been previously investigated to determine the extent of on-site radiological contamination. At the request of DOE, Oak Ridge National Laboratory (ORNL) conducted a survey in May 1990, of public roadways and suspected haul routes between the Mallinckrodt plant and storage sites in St. Louis to ensure that no residual radioactive materials were conveyed off-site. A mobile gamma scanning van with an on-board computer system was used to identify possible anomalies. Suspect areas are those displaying measurements deviating from gamma exposure rates identified as typical for radiologically unenhanced areas in the vicinity of the areas of interest. The instrumentation highlighted three anomaly locations each of which measured less than 1m{sup 2} in size. None of the slightly elevated radiation levels originated from material associated with former AEC-related processing operations in the area. The anomalies resulted from elevated concentrations of radionuclides present in phosphate fertilizers, increased thorium in road-base gravel, and emanations from the radioactive storage site near the Latty Avenue airport. 9 refs., 3 figs.

  16. Analysis of Bioproducts from Ultra-Low Cost Biomass Processing Lucy Cheadle, Chemical Engineering, Washington University in St. Louis, MO

    E-Print Network [OSTI]

    Collins, Gary S.

    of volatiles in the sample ·Introduce oxygen to combust char and determine ash content · For "oven-dried" wood of biochar product to processing variations. Possible uses for biochar: · Natural coal replacement · Soil developed to use timber harvest and forest fuels reduction slash. Normally, slash is disposed of by being

  17. The Forgotten Children: African American Children and Child Welfare Reform in St. Louis, 1890-1930

    E-Print Network [OSTI]

    Thirlkel, Thomas E.

    2010-05-07T23:59:59.000Z

    Abstract Forgotten Children examines the influence of racial ideology on the trajectory of child welfare reform in late nineteenth century and early twentieth century St. Louis. The modern American child welfare system emerged in this time period...

  18. Application to Export Electric Energy OE Docket No. EA-359 Louis...

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

    : Federal Register Notice Volume 74, No. 162 - Aug. 24, 2009 Application to Export Electric Energy OE Docket No. EA-359 Louis Dreyfus Energy Services L.P.: Federal Register Notice...

  19. A moment in the pragmatic political style: the rhetoric of Louis D. Brandeis 

    E-Print Network [OSTI]

    Stob, Paul Henry

    2004-11-15T23:59:59.000Z

    This thesis examines the rhetoric of Louis D. Brandeis in light of pragmatism-specifically, the philosophical pragmatism of William James and John Dewey. While a number of scholars claim that pragmatism has nothing to offer politics, rhetoric...

  20. A moment in the pragmatic political style: the rhetoric of Louis D. Brandeis

    E-Print Network [OSTI]

    Stob, Paul Henry

    2004-11-15T23:59:59.000Z

    This thesis examines the rhetoric of Louis D. Brandeis in light of pragmatism-specifically, the philosophical pragmatism of William James and John Dewey. While a number of scholars claim that pragmatism has nothing to offer politics, rhetoric...

  1. Young-Kee Kim, an experimental particle physicist, is the Louis...

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

    physicist, is the Louis Block Professor of Physics at the University of Chicago. She has devoted much of her research work to understanding the origin of mass for fundamental...

  2. Electrodeposition of high Mo content Ni-Mo alloys under forced convection

    SciTech Connect (OSTI)

    Podlaha, E.J.; Matlosz, M.; Landolt, D. (Ecole Polytechnique Federale de Lausanne, Lausanee (Switzerland). Dept. des materiaux)

    1993-10-01T23:59:59.000Z

    Bright, compact, adherent, metallic Ni-Mo alloys, containing over 48 wt % Mo have been electrodeposited from an aqueous solution. The Mo content, which is the highest achieved so far in induced codeposition of Ni-Mo, was determined by X-ray fluorescence spectroscopy. The absence of oxygen was verified by Auger electron spectroscopy. Electrodeposition experiments were performed on rotating cylinder electrodes and demonstrate that the Mo content of the alloy is strongly influenced by convective transport.

  3. Uranium characterization at the St. Louis Airport Site

    SciTech Connect (OSTI)

    Schilk, A.J.; Hubbard, C.W.; Bowyer, T.W. [Pacific Northwest Lab., Richland, WA (United States); Reiman, R.T. [Technical Measurement Co., Boulder, CO (United States)

    1995-05-01T23:59:59.000Z

    In support of the Department of Energy/Office of Technology Development`s Expedited Site Characterization (ESC) project (coordinated by Ames Laboratory), the Pacific Northwest Laboratory demonstrated two complementary technologies at the St. Louis Airport (SLAP) site that have been designed and optimized for the rapid, in situ quantification of radionuclide contamination in surface soils. The sensors are optimized for the detection of high-energy beta particles or gamma rays emitted from the decay of specific radionuclides of interest. These technologies were demonstrated by measuring the beta and gamma fluxes at several locations within the SLAP site. Measurements were converted to average contamination levels, using detector calibrations performed with spiked samples (beta) or sealed sources (gamma). Additionally, subsurface activity levels were derived from discrete soil samples (provided by the ESC field crew) via gamma-ray spectrometry in a controlled laboratory setting. Since the beta and gamma sensor technologies are intrinsically sensitive to different types of radiation and activity distributions (i.e., surface and shallow subsurface, respectively), the data obtained from the two detectors provide complementary information about the distribution of the contamination. The results reported here suggest that a number of locations within the SLAP site have elevated levels of {sup 211}U, and the differences between the beta and gamma activities indicate that the contamination is largely located near the surface of the soil.

  4. Availability of the St. Louis North County Site Feasibility Study and Proposed Plan (FS/PP) for Public Review and Comment

    E-Print Network [OSTI]

    US Army Corps of Engineers

    ). The North County FS/PP presents cleanup alternatives for the following sites: St. Louis Airport Site (SLAPS

  5. 2007 Raj JainCSE571SWashington University in St. Louis Secure Socket Layer (SSL)Secure Socket Layer (SSL)

    E-Print Network [OSTI]

    Jain, Raj

    15-1 ©2007 Raj JainCSE571SWashington University in St. Louis Secure Socket Layer (SSL)Secure Socket Layer (SSL) and Transport Layerand Transport Layer Security (TLS)Security (TLS) Raj Jain Washington in St. Louis OverviewOverview History and overview of SSL/TLS Products and Implementations Datagram

  6. 2009 Raj JainCSE571SWashington University in St. Louis Secure Socket Layer (SSL)Secure Socket Layer (SSL)

    E-Print Network [OSTI]

    Jain, Raj

    15-1 ©2009 Raj JainCSE571SWashington University in St. Louis Secure Socket Layer (SSL)Secure Socket Layer (SSL) and Transport Layerand Transport Layer Security (TLS)Security (TLS) Raj Jain Washington in St. Louis OverviewOverview History and overview of SSL/TLS Products and Implementations Datagram

  7. 2010 Raj JainCSE574SWashington University in St. Louis Wireless Physical LayerWireless Physical Layer

    E-Print Network [OSTI]

    Jain, Raj

    consists of 3 components: 1. Thermal Noise: Proportional to absolute temperature Noise Power Spectral. Louis OverviewOverview Channel Model Path Loss, Fading, Shadowing, Noise d-4 Power Law Fresnel Zones University in St. Louis Channel ModelChannel Model Power profile of the received signal can be obtained

  8. Comparison of Daytime and Nighttime Populations Adjacent to Interstate Highways in Metropolitan Areas Using LandScan USA

    SciTech Connect (OSTI)

    Johnson, Paul E [ORNL] [ORNL

    2007-01-01T23:59:59.000Z

    An article of similar title was published in the International Journal of Radioactive Materials Transport in 1999. The study concluded that the daytime and nighttime populations are not substantially different for the metropolitan areas examined. This study revisits the issue, but using the LandScan USA high resolution population distribution data, which includes daytime and night-time population. Segments of Interstate highway beltways, along with the direct route through the city, for Atlanta, St. Louis, and Kansas City are examined with an 800m buffer from either side of the highways. The day/night ratio of population is higher using the LandScan USA data. LandScan USA daytime and night-time data will be incorporated into the TRAGIS routing model in future.

  9. Characterization of a virus associated with head and lateral line erosion syndrome (HLLE) in marine angelfish

    E-Print Network [OSTI]

    Varner, Patricia Wilcox

    1990-01-01T23:59:59.000Z

    model L-2 ultracentrifuge for 1. 5 hr using a swing-bucket type rotor (SW41 or SW28). The virus pellet was resuspended in 1 ml TNE buffer (0. 025 M Tris [Mallinckrodt, Paris, KY, USA], 0. 1 M NaCl, 1mM EDTA [Sigma Chemical Co. , St. Louis, MO, USA], p..., Buffalo, NY, USA). Determination of nucleic acid type. FUDR (5-fluoro-2'-deoxyuridine; Sigma Chemical Co. , St. Louis, MO, USA), an inhibitor of DNA synthesis, was utilized to determine the nucleic acid type of the viral isolate. Maintenance media from...

  10. US WNC MO Site Consumption

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1Stocks Nov-14TotalThe Outlook269,023Year69,023USWNC MO Site

  11. ADVANCED COAL & ENERGY RESEARCH FACILITY (ACERF) Washington University in St. Louis

    E-Print Network [OSTI]

    Subramanian, Venkat

    ADVANCED COAL & ENERGY RESEARCH FACILITY (ACERF) Washington University in St. Louis Overview The Advanced Coal and Energy Research Facility provides for pilot-scale research and development of new b d Ongoing Research Activities Oxy-coal combustion faculty and students within the U.S. and abroad

  12. Cloud Storage for Small Cell Networks Ejder Bastug , Jean-Louis Guenego , and Merouane Debbah

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Cloud Storage for Small Cell Networks Ejder Ba¸stug , Jean-Louis Gu´en´ego , and M´erouane Debbah in indoor or outdoor areas, one can take benefit of such distributed network for storage purposes. Hence, Depending on the deployed scenario, these storage units can also be used for content caching to relieve

  13. The paradoxical aspect of the Himalayan granites Jean-Louis VIGNERESSE1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The paradoxical aspect of the Himalayan granites Jean-Louis VIGNERESSE1 and Jean-Pierre BURG2 1 as reference examples of collision-related granites. However, they are much smaller than the Hercynian collision-related granites. Additional comparison with magmatic arcs and cordilleran-type batholiths

  14. The braided Ptolemy-Thompson group is asynchronously combable Louis Funar Christophe Kapoudjian

    E-Print Network [OSTI]

    Funar, Louis

    The braided Ptolemy-Thompson group is asynchronously combable Louis Funar Christophe Kapoudjian@fourier.ujf-grenoble.fr e-mail: ckapoudj@math.univ-toulouse.fr December 4, 2009 Abstract The braided Ptolemy-Thompson group T is an extension of the Thompson group T by the full braid group B on infinitely many strands and both of them can

  15. Cooling and Heating of the Quantum Motion of Trapped Cd+ Louis Deslauriers

    E-Print Network [OSTI]

    Monroe, Christopher

    ABSTRACT Cooling and Heating of the Quantum Motion of Trapped Cd+ Ions by Louis Deslauriers Chair information processor has seen tremendous progress in many fields of physics. In the last decade, trapped ions for entanglement generation limiting the fidelity of quantum logic gates. Effective ground state cooling of trapped

  16. Canada and Jules Verne By Andrew Nash and Jean-Louis Trudel

    E-Print Network [OSTI]

    HarÂ?El, Zvi

    Canada and Jules Verne By Andrew Nash and Jean-Louis Trudel Presented at: 15H, 22 mars, 2005 by Andrew Nash Hello, My name is Andrew Nash, and I am from Toronto Canada. I have been a fan of Jules Verne travelling to North America on the Great Eastern, Jules Verne visited Canada for less than 1 day when he took

  17. On neurofuzzy and fuzzy decision tree approaches Cristina OLARU, Louis WEHENKEL

    E-Print Network [OSTI]

    Wehenkel, Louis

    On neurofuzzy and fuzzy decision tree approaches Cristina OLARU, Louis WEHENKEL University of Li of fuzzy information are presented, compared and combined : neurofuzzy systems based on multilayer feedforward neural networks and fuzzy decision trees based on top down induction. Neurofuzzy systems take

  18. Connected to the Land: Nature and Spirit in the Novels of Louis Owens

    E-Print Network [OSTI]

    Pierotti, Raymond

    2002-03-01T23:59:59.000Z

    of these individuals predispose them to working in art forms that do not arise from tribal cultural traditions. Louis Owens, a Choctaw-Cherokee and Irish writer and scholar was especially effective in presenting clear images of what it means to be of mixed blood. Owens...

  19. Seismic Velocity Inversion with Genetic Algorithms Sushil J. Louis Qinxue Chen Satish Pullammanappallil

    E-Print Network [OSTI]

    Louis, Sushil J.

    Seismic Velocity Inversion with Genetic Algorithms Sushil J. Louis Qinxue Chen Satish to compute travel times for seismic waves. However, in practice, we have to solve the inverse problem: travel synthetic seismic models shows that large population sizes are crit- ical to generating good seismic

  20. Seismic Velocity Inversion with Genetic Algorithms Sushil J. Louis Qinxue Chen

    E-Print Network [OSTI]

    Louis, Sushil J.

    Seismic Velocity Inversion with Genetic Algorithms Sushil J. Louis Qinxue Chen Genetic Adaptive­surface models from seismic travel­time data. Given a sub­surface model, the physics of wave propagation through refractive media can be used to compute travel times for seismic waves. How­ ever, in practice, we have

  1. alvos contendo mo: Topics by E-print Network

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

    CaMoO4 crystal scintillators. A high sensitivity experiment to search for neutrinoless double beta decay of 100-Mo by using CaMoO4 scintillators is discussed. Annenkov, A N;...

  2. Page 1 of 3 last updated: 9-Nov-11 I. WASHINGTON UNIVERSITY IN ST. LOUIS INTERNATIONAL TRAVEL POLICY

    E-Print Network [OSTI]

    Subramanian, Venkat

    -essential travel to the country; 2) The travel assistance organization International SOS IN ST. LOUIS INTERNATIONAL TRAVEL POLICY The Washington University International Travel Policy has been adopted to ensure a consistent set of travel standards

  3. Towards Adaptive and Reflective Middleware For Network-Centric Combat Systems

    E-Print Network [OSTI]

    Schmidt, Douglas C.

    .sharp@boeing.com The Boeing Company St. Louis, MO Louis P. DiPalma Louis_P_DiPalma@raytheon.com Raytheon Portsmouth, RI

  4. 2006 Raj JainCSE574sWashington University in St. Louis Energy ManagementEnergy Management

    E-Print Network [OSTI]

    Jain, Raj

    node Does not give min total power Reduced lifetime for the network 6. Conditional Min-Max Battery://www.cse.wustl.edu/~jain/cse574-06/ #12;16-2 ©2006 Raj JainCSE574sWashington University in St. Louis OverviewOverview Battery Power Management #12;16-3 ©2006 Raj JainCSE574sWashington University in St. Louis Battery Management

  5. St. Louis Metro Biodiesel (B20) Transit Bus Evaluation: 12-Month Final Report

    SciTech Connect (OSTI)

    Barnitt, R.; McCormick, R. L.; Lammert, M.

    2008-07-01T23:59:59.000Z

    The St. Louis Metro Bodiesel Transit Bus Evaluation project is being conducted under a Cooperative Research and Development Agreement between NREL and the National Biodiesel Board to evaluate the extended in-use performance of buses operating on B20 fuel. The objective of this research project is to compare B20 and ultra-low sulfur diesel buses in terms of fuel economy, veicles maintenance, engine performance, component wear, and lube oil performance.

  6. MoS2 Nanoribbons Thermoelectric Generators

    E-Print Network [OSTI]

    Arab, Abbas

    2015-01-01T23:59:59.000Z

    In this work, we have designed and simulated new thermoelectric generator based on monolayer and few-layer MoS2 nanoribbons. The proposed thermoelectric generator is composed of thermocouples made of both n-type and p-type MoS2 nanoribbon legs. Density Functional Tight-Binding Non-Equilibrium Green's Function (DFTB-NEGF) method has been used to calculate the transmission spectrum of MoS2 armchair and zigzag nanoribbons. Phonon transmission spectrum are calculated based on parameterization of Stillinger-Weber potential. Thermoelectric figure of merit, ZT, is calculated using these electronic and phonon transmission spectrum. Monolayer and bilayer MoS2 armchair nanoribbons are found to have the highest ZT value for p-type and n-type legs, repectively. Moreover, we have compared the thermoelectric current of doped monolayer MoS2 armchair nanoribbons and SZi thin films. Results indicate that thermoelectric current of MoS2 monolayer nanoribbons is several orders of magnitude higher than that of Si thin films.

  7. Long Term Stewardship Challenges at the St. Louis District FUSRAP Sites

    SciTech Connect (OSTI)

    Dell'Orco, L.; Chambers, D.

    2002-02-27T23:59:59.000Z

    Non-Federally owned radioactively contaminated sites in St. Louis, Missouri are currently being remediated by the St. Louis District Corps of Engineers under the Formerly Utilized Sites Remedial Action Program (FUSRAP). When FUSRAP remediation is complete, inaccessible soils which have levels of contamination greater than unrestricted use standards, will remain. The purpose of this paper is to document the initial challenges facing the project team during its development of the Long Term Stewardship plan for the management of these soils. These soils are located under buildings, roads, railroads and bridges. The Long Term Stewardship plan for the majority of the sites is being developed simultaneously with the remedy selection process. A living document, it will ultimately document the remedial action end state and location of inaccessible soils and implement the plan for ensuring these soils are not a threat to human health and the environment. Although these soils are protective in their current configuration, at some point in time, when activities such as maintenance, utility or property improvement occur, the soils will become accessible and need to be addressed by the federal government. Up until that point in time they will need to be effectively managed to ensure they remain protective. The St. Louis District is in the process of collaboratively developing this plan with its regulators, affected stakeholders and interested parties.

  8. St. Louis Airport site: Annual site environmental report, Calendar Year 1986. [FUSRAP

    SciTech Connect (OSTI)

    Not Available

    1987-05-01T23:59:59.000Z

    During 1986, the environmental monitoring program was continued at the St. Louis Airport Site (SLAPS) in St. Louis County, Missouri. The ditches north and south of the site were designated for cleanup as part of the Formerly Utilized Sites Remedial Action Program (FUSRAP), a United States Department of Energy (DOE) program to identify, decontaminate, or control sites where residual radioactive material remains from the early years of the nation's atomic energy program. The site is currently controlled by the St. Louis Airport Authority. The monitoring program measures radon gas concentrations in air; external gamma dose rates; and uranium, thorium, and radium concentrations in surface water, groundwater, and sediment. The radiation dose was calculated for the maximally exposed individual. Based on the scenario described in this report, the maximally exposed individual would receive an external exposure approximately equivalent to 4.7 percent of the DOE radiation protection standard of 100 mrem/yr. The dose to the population within an 80-km (50-mi) radius of the SLAPS that would result from radioactive materials present at the site would be indistinguishable from the dose the population would receive from naturally occurring radioactive sources. 12 refs., 5 figs., 10 tabs.

  9. Proceedings of 2006 NSF Design, Service, and Manufacturing Grantees and Research Conference, St. Louis, Missouri Grant #DMI-0423791 Collaborative Research: Contacting and Solidification in Casting-by-Design

    E-Print Network [OSTI]

    Thomas, Brian G.

    Proceedings of 2006 NSF Design, Service, and Manufacturing Grantees and Research Conference, St, Service, and Manufacturing Grantees and Research Conference, St. Louis, Missouri Grant #DMI-0423791 Figure

  10. Prompt {gamma}-ray spectroscopy of the {sup 104}Mo and {sup 108}Mo fission fragments

    SciTech Connect (OSTI)

    Guessous, A.; Schulz, N.; Bentaleb, M.; Lubkiewicz, E. [Centre de Recherches Nucleaires, Institut National de Physique Nucleaire et de Physique des Particules, Centre National de la Recherche Scientifique, Universite Louis Pasteur, 67037 Strasbourg (France)] [Centre de Recherches Nucleaires, Institut National de Physique Nucleaire et de Physique des Particules, Centre National de la Recherche Scientifique, Universite Louis Pasteur, 67037 Strasbourg (France); Durell, J.L.; Pearson, C.J.; Phillips, W.R.; Shannon, J.A.; Urban, W.; Varley, B.J. [Department of Physics, University of Manchester, M13 9PL (United Kingdom)] [Department of Physics, University of Manchester, M13 9PL (United Kingdom); Ahmad, I.; Lister, C.J.; Morss, L.R.; Nash, K.L.; Williams, C.W. [Argonne National Laboratory, Argonne, Illinois 60439 (United States)] [Argonne National Laboratory, Argonne, Illinois 60439 (United States); Khazrouni, S. [Laboratoire de Physique Nucleaire Appliquee, Faculte des Sciences, Kenitra, Maroc (France)] [Laboratoire de Physique Nucleaire Appliquee, Faculte des Sciences, Kenitra, Maroc (France)

    1996-03-01T23:59:59.000Z

    The level structures of the neutron-rich {sup 104}Mo and {sup 108}Mo nuclei have been investigated by observing prompt {gamma} rays emitted in the spontaneous fission of {sup 248}Cm with the EUROGAM spectrometer. Levels with spins up to 12{h_bar} have been observed and {gamma} branching obtained. The data can be satisfactorily described when {sup 104,108}Mo are considered as axially symmetric nuclei: in {sup 104}Mo, rotational bands based on the ground state, the one-phonon and the two-phonon {gamma}-vibrational states and a quasiparticle state have been observed, whereas in {sup 108}Mo the information is limited to the yrast band and the one phonon {gamma} band. {copyright} {ital 1996 The American Physical Society.}

  11. Tunable MoS{sub 2} bandgap in MoS{sub 2}-graphene heterostructures

    SciTech Connect (OSTI)

    Ebnonnasir, Abbas [Department of Mechanical Engineering and Materials Science Program, Colorado School of Mines, Golden, Colorado 80401 (United States); Department of Materials Science and Engineering, University of California Los Angeles, Los Angeles, California 90095 (United States); Narayanan, Badri; Ciobanu, Cristian V., E-mail: cciobanu@mines.edu, E-mail: kodambaka@ucla.edu [Department of Mechanical Engineering and Materials Science Program, Colorado School of Mines, Golden, Colorado 80401 (United States); Kodambaka, Suneel, E-mail: cciobanu@mines.edu, E-mail: kodambaka@ucla.edu [Department of Materials Science and Engineering, University of California Los Angeles, Los Angeles, California 90095 (United States)

    2014-07-21T23:59:59.000Z

    Using density functional theory calculations with van der Waals corrections, we investigated how the interlayer orientation affects the structure and electronic properties of MoS{sub 2}-graphene bilayer heterostructures. Changing the orientation of graphene with respect to MoS{sub 2} strongly influences the type and the value of the electronic bandgap in MoS{sub 2}, while not significantly altering the binding energy between the layers or the interlayer spacing. We show that the physical origin of this tunable bandgap arises from variations in the S–S interplanar distance (MoS{sub 2} thickness) with the interlayer orientation, variations which are caused by electron transfer away from the Mo–S bonds.

  12. Worldwide Energy and Manufacturing USA Inc formerly Worldwide...

    Open Energy Info (EERE)

    USA Inc formerly Worldwide Manufacturing USA Jump to: navigation, search Name: Worldwide Energy and Manufacturing USA Inc (formerly Worldwide Manufacturing USA) Place: San Bruno,...

  13. Elevated Temperature Tensile Tests on DU–10Mo Rolled Foils

    SciTech Connect (OSTI)

    Jason Schulthess

    2014-09-01T23:59:59.000Z

    Tensile mechanical properties for uranium-10 wt.% molybdenum (U–10Mo) foils are required to support modeling and qualification of new monolithic fuel plate designs. It is expected that depleted uranium-10 wt% Mo (DU–10Mo) mechanical behavior is representative of the low enriched U–10Mo to be used in the actual fuel plates, therefore DU-10Mo was studied to simplify material processing, handling, and testing requirements. In this report, tensile testing of DU-10Mo fuel foils prepared using four different thermomechanical processing treatments were conducted to assess the impact of foil fabrication history on resultant tensile properties.

  14. Wetting of metals and glasses on Mo

    SciTech Connect (OSTI)

    Saiz, Eduardo; Tomsia, Antoni P.; Saiz, Eduardo; Lopez-Esteban, Sonia; Benhassine, Mehdi; de Coninck, Joel; Rauch, Nicole; Ruehle, Manfred

    2008-01-08T23:59:59.000Z

    The wetting of low melting point metals and Si-Ca-Al-Ti-O glasses on molybdenum has been investigated. The selected metals (Au, Cu, Ag) form a simple eutectic with Mo. Metal spreading occurs under nonreactive conditions without interdiffusion or ridge formation. The metals exhibit low (non-zero) contact angles on Mo but this requires temperatures higher than 1100 C in reducing atmospheres in order to eliminate a layer of adsorbed impurities on the molybdenum surface. By controlling the oxygen activity in the furnace, glass spreading can take place under reactive or nonreactive conditions. We have found that in the glass/Mo system the contact angle does not decrease under reactive conditions. In all cases, adsorption from the liquid seems to accelerate the diffusivity on the free molybdenum surface.

  15. The following are typical equations and conversions for calculating flux densities of sensible, latent and carbon dioxide from eddy covariances presented by Kevin Tu, St. Louis (10/97). The

    E-Print Network [OSTI]

    Tu, Kevin

    , latent and carbon dioxide from eddy covariances presented by Kevin Tu, St. Louis (10/97). The properties

  16. Oxidation, Reduction, and Condensation of Alcohols over (MO3)3 (M=Mo, W) Nanoclusters

    SciTech Connect (OSTI)

    Fang, Zongtang; Li, Zhenjun; Kelley, Matthew S.; Kay, Bruce D.; Li, Shenggang; Hennigan, Jamie M.; Rousseau, Roger J.; Dohnalek, Zdenek; Dixon, David A.

    2014-10-02T23:59:59.000Z

    The reactions of deuterated methanol, ethanol, 1-propanol, 1-butanol, 2-propanol, 2-butanol and t-butanol over cyclic (MO3)3 (M = Mo, W) clusters were studied experimentally with temperature programmed desorption (TPD) and theoretically with coupled cluster CCSD(T) theory and density functional theory. The reactions of two alcohols per M3O9 cluster are required to provide agreement with experiment for D2O release, dehydrogenation and dehydration. The reaction begins with the elimination of water by proton transfers and forms an intermediate dialkoxy species which can undergo further reaction. Dehydration proceeds by a ? hydrogen transfer to a terminal M=O. Dehydrogenation takes place via an ? hydrogen transfer to an adjacent MoVI = O atom or a WVI metal center with redox involved for M = Mo and no redox for M = W. The two channels have comparable activation energies. H/D exchange to produce alcohols can take place after olefin is released or via the dialkoxy species depending on the alcohol and the cluster. The Lewis acidity of the metal center with WVI being larger than MoVI results in the increased reactivity of W3O9 over Mo3O9 for dehydrogenation and dehydration.

  17. Louis Baker, 1973 | U.S. DOE Office of Science (SC)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9 5LetLooking5investsLouis Baker, 1973 The Ernest

  18. Louis Rosen, 1963 | U.S. DOE Office of Science (SC)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9 5LetLooking5investsLouis Baker, 1973 The

  19. Mo Supply Chain for Nuclear Medicine Ladimer S. Nagurney

    E-Print Network [OSTI]

    Nagurney, Anna

    The 99 Mo Supply Chain for Nuclear Medicine Ladimer S. Nagurney Department of Electrical November 13, 2012 #12;Nuclear Medicine: Meeting Patient Needs with 99 Mo Ladimer S. Nagurney The 99 Mo Supply Chain #12;Background and Motivation Study of Nuclear Medicine Supply Chains is a combination

  20. Building Commissioning in the USA 

    E-Print Network [OSTI]

    Castro, N.; Friedman, H.

    2006-01-01T23:59:59.000Z

    Building Commissioning in the USA Natascha Castro, Annex 47- US Team Leader National Institute of Standards and Technology Hannah Friedman, Cost-Benefit Subtask Leader Portland Energy Conservation, Inc. Asian Pacific Conference on Building...

  1. Role of SrMoO{sub 4} in Sr{sub 2}MgMoO{sub 6} synthesis

    SciTech Connect (OSTI)

    Vasala, S.; Yamauchi, H. [Laboratory of Inorganic Chemistry, Department of Chemistry, School of Chemical Technology, Aalto University, P.O. Box 16100, FI-00076 Aalto (Finland); Karppinen, M., E-mail: maarit.karppinen@aalto.f [Laboratory of Inorganic Chemistry, Department of Chemistry, School of Chemical Technology, Aalto University, P.O. Box 16100, FI-00076 Aalto (Finland)

    2011-05-15T23:59:59.000Z

    Here we investigate the elemental and phase compositions during the solid-state synthesis of the promising SOFC-anode material, Sr{sub 2}MgMoO{sub 6}, and demonstrate that molybdenum does not notably evaporate under the normal synthesis conditions with temperatures up to 1200 {sup o}C due to the formation of SrMoO{sub 4} as an intermediate product at low temperatures, below 600 {sup o}C. However, partial decomposition of the Sr{sub 2}MgMoO{sub 6} phase becomes evident at the higher temperatures ({approx}1500 {sup o}C). The effect of SrMoO{sub 4} on the electrical conductivity of Sr{sub 2}MgMoO{sub 6} is evaluated by preparing a series of Sr{sub 2}MgMoO{sub 6} samples with different amounts of additional SrMoO{sub 4}. Under the reducing operation conditions of an SOFC anode the insulating SrMoO{sub 4} phase is apparently reduced to the highly conductive SrMoO{sub 3} phase. Percolation takes place with 20-30 wt% of SrMoO{sub 4} in a Sr{sub 2}MgMoO{sub 6} matrix, with a notable increase in electrical conductivity after reduction. Conductivity values of 14, 60 and 160 S/cm are determined at 800 {sup o}C in 5% H{sub 2}/Ar for the Sr{sub 2}MgMoO{sub 6} samples with 30, 40 and 50 wt% of added SrMoO{sub 4}, respectively. -- Graphical abstract: SrMoO{sub 4} is formed at low temperatures during the synthesis of Sr{sub 2}MgMoO{sub 6}, which prevents the volatilization of Mo from typical precursor mixtures of this promising SOFC anode material. SrMoO{sub 4} is insulating and it is often found as an impurity in Sr{sub 2}MgMoO{sub 6} samples. It is however readily reduced to highly conducting SrMoO{sub 3}. Composites of Sr{sub 2}MgMoO{sub 6} and SrMoO{sub 3} show increased electrical conductivities compared to pure Sr{sub 2}MgMoO{sub 6} under the reductive operation conditions of an SOFC anode. Display Omitted Highlights: {yields} Sr{sub 2}MgMoO{sub 6} is a promising SOFC anode material. {yields} During the Sr{sub 2}MgMoO{sub 6} synthesis SrMoO{sub 4} is formed at low temperatures. {yields} Formation of SrMoO{sub 4} effectively prevents volatilization of Mo at high temperatures. {yields} Insulating SrMoO{sub 4} reduces to highly conductive SrMoO{sub 3} under SOFC-anode conditions. {yields} Composites of Sr{sub 2}MgMoO{sub 6} and SrMoO{sub 3} show high electrical conductivities.

  2. St. Louis Airport Site annual site environmental report. Calendar year 1985

    SciTech Connect (OSTI)

    Not Available

    1986-04-01T23:59:59.000Z

    During 1985, the environmental monitoring program was continued at the St. Louis Airport Site (SLAPS) in St. Louis County, Missouri. The ditches north and south of the site have been designated for cleanup as part of the Formerly Utilized Sites Remedial Action Program (FUSRAP), a United States Department of Energy (DOE) program to identify, decontaminate, or otherwise control sites where low-level radioactive contamination remains from the early years of the nation's atomic energy program. The site is not currently controlled or regulated by DOE or NRC, although radiological monitoring of the site has been authorized by the DOE. The monitoring program at the SLAPS measures radon gas concentrations in air; external gamma radiation dose rates; and uranium, thorium, and radium concentrations in surface water, groundwater, and sediment. Potential radiation doses to the public are also calculated. Because the site is not controlled or regulated by the DOE, the DOE Derived Concentration Guides (DCGs) are not applicable to SLAPS, but are included as a basis for comparison only. The DOE DCGs and the DOE radiation protection standard have been revised.

  3. Development of CaMoO4 crystal scintillators for double beta decay experiment with 100-Mo

    E-Print Network [OSTI]

    A. N. Annenkov; O. A. Buzanov; F. A. Danevich; A. Sh. Georgadze; S. K. Kim; H. J. Kim; Y. D. Kim; V. V. Kobychev; V. N. Kornoukhov; M. Korzhik; J. I. Lee; O. Missevitch; V. M. Mokina; S. S. Nagorny; A. S. Nikolaiko; D. V. Poda; R. B. Podviyanuk; D. J. Sedlak; O. G. Shkulkova; J. H. So; I. M. Solsky; V. I. Tretyak; S. S. Yurchenko

    2007-07-10T23:59:59.000Z

    Energy resolution, alpha/beta ratio, pulse-shape discrimination for gamma rays and alpha particles, temperature dependence of scintillation properties, and radioactive contamination were studied with CaMoO4 crystal scintillators. A high sensitivity experiment to search for neutrinoless double beta decay of 100-Mo by using CaMoO4 scintillators is discussed.

  4. Re Effects on Phase Stability and Mechanical Properties of MoSS+Mo3Si+Mo5SiB2 alloys

    SciTech Connect (OSTI)

    Yang, Ying [ORNL; Bei, Hongbin [ORNL; George, Easo P [ORNL; Tiley, Jaimie [Air Force Research Laboratory, Wright-Patterson AFB, OH

    2013-01-01T23:59:59.000Z

    Because of their high melting points and good oxidation resistance Mo-Si-B alloys are of interest as potential ultrahigh-temperature structural materials. But their major drawbacks are poor ductility and fracture toughness at room temperature. Since alloying with Re has been suggested as a possible solution, we investigate here the effects of Re additions on the microstructure and mechanical properties of a ternary alloy with the composition Mo-12.5Si-8.5B (at.%). This alloy has a three-phase microstructure consisting of Mo solid-solution (MoSS), Mo3Si, and Mo5SiB2 and our results show that up to 8.4 at.% Re can be added to it without changing its microstructure or forming any brittle phase at 1600 C. Three-point bend tests using chevron-notched specimens showed that Re did not improve fracture toughness of the three-phase alloy. Nanoindentation performed on the MoSS phase in the three-phase alloy showed that Re increases Young s modulus, but does not lower hardness as in some Mo solid solution alloys. Based on our thermodynamic calculations and microstructural analyses, the lack of a Re softening effect is attributed to the increased Si levels in the Re-containing MoSS phase since Si is known to increase its hardness. This lack of softening is possibly why there is no Re-induced improvement in fracture toughness.

  5. Dye-Sensitized Solar Cells Based on Hierarchically Structured John Beach, Washington University in St. Louis, 2012 SURF Fellow

    E-Print Network [OSTI]

    Li, Mo

    Dye-Sensitized Solar Cells Based on Hierarchically Structured John Beach, Washington University to increase the efficiency of these solar cells. One of the barriers that needs to be overcome to make dye-sensitized in St. Louis, 2012 SURF Fellow Advisor: Prof. Zhiqun Lin; Mentor: Dr. Xukai Xin Introduction Dye-sensitized

  6. Sustainable urban logistics: Concepts, methods and information Jesus Gonzalez-Feliu, Jean-Louis Routhier and Frdric Semet

    E-Print Network [OSTI]

    Boyer, Edmond

    Sustainable urban logistics: Concepts, methods and information systems Preface Jesus Gonzalez-Feliu, Jean-Louis Routhier and Frédéric Semet Urban logistics is a wide studied subject. Indeed, since more/urban logistics are retained. The first is that of Taniguchi et al. [1] who define city logistics as « the process

  7. A review of "To Repair the Ruins: Reading Milton" edited by Mary C. Fenton and Louis Schwartz

    E-Print Network [OSTI]

    Welch, Anthony

    2013-01-01T23:59:59.000Z

    that deserve the attention he gives them. Mary C. Fenton and Louis Schwartz, eds. To Repair the Ruins: Reading Milton. Pittsburgh: Duquesne University Press, #18;#17;#16;#18;. xii + #1;#30; pp. + #18;#18; illus. $#14;#15;.#17;#17;. Review by #8...

  8. Mesoscale Eddy Energy Locality in an Idealized Ocean Model IAN GROOMS, LOUIS-PHILIPPE NADEAU, AND K. SHAFER SMITH

    E-Print Network [OSTI]

    Smith, K. Shafer

    Mesoscale Eddy Energy Locality in an Idealized Ocean Model IAN GROOMS, LOUIS-PHILIPPE NADEAU, AND K investigates the energy budget of mesoscale eddies in wind-driven two-layer quasigeostrophic simulations of eddy energy are ``nonlocal.'' Many mesoscale parameterizations assume that statistics of the unresolved

  9. St. Louis airport site: Annual site environmental report, St. Louis, Missouri, Calendar Year 1988: Formerly Utilized Sites Remedial Action Program (FUSRAP)

    SciTech Connect (OSTI)

    Not Available

    1989-04-01T23:59:59.000Z

    The monitoring program at St. Louis Airport Site (SLAPS) measures radon concentrations in air; external gamma dose rates; and uranium, thorium, and radium concentrations in surface water, groundwater, and sediment. To assess the potential effects of SLAPS on public health, the potential radiation dose was estimated for a hypothetical maximally exposed individual. Based on the scenario described in this report, this hypothetical individual would receive an external exposure approximately equivalent to 7.5 percent of the DOE radiation protection standard of 100 mrem/yr. This exposure is approximately the same as a person receives during two round-trip flights from New York to Los Angeles (because of greater amounts of cosmic radiation at higher altitudes). The cumulative dose to the population within an 80-km (50-mi) radius of SLAPS that results from radioactive materials present at the site is indistinguishable from the dose the same population receives from naturally occurring radioactive sources. Results of 1988 monitoring show that SLAPS is in compliance with the DOE radiation protection standard. 18 refs., 13 figs., 13 tabs.

  10. Rooftop Unit and Autonomous Control and Communication for RTU Network- Supermarket

    Broader source: Energy.gov [DOE]

    Lead Performer: Oak Ridge National Laboratory - Oak Ridge, TN Project Partner: Emerson - St. Louis, MO

  11. Solar heating and hot water system installed at St. Louis, Missouri. Final report

    SciTech Connect (OSTI)

    Not Available

    1980-04-01T23:59:59.000Z

    Information is provided on the solar heating and hot water system installed at the William Tao and Associates, Inc., office building in St. Louis, Missouri. The information consists of description, photos, maintenance and construction problems, final drawing, system requirements and manufacturer's component data. The solar system was designed to provide 50% of the hot water requirements and 45% of the space heating needs for a 900 square foot office space and drafting room. The solar facility has 252 square foot of glass tube concentrator collectors and a 1000 gallon steel storage tank buried below a concrete slab floor. Freeze protection is provided by a propylene glycol/water mixture in the collector loop. The collectors are roof mounted on a variable tilt array which is adjusted seasonally and is connected to the solar thermal storage tank by a tube-in-shell heat exchanger. Incoming city water is preheated through the solar energy thermal storage tank.

  12. A review of "The Dynastic State and the Army under Louis XIV: Royal Service and Private Interest, 1661-1701." by Guy Rowlands

    E-Print Network [OSTI]

    Wendy F. Kasinec

    2005-01-01T23:59:59.000Z

    society and agriculture, and economic development in early modern England. Guy Rowlands. The Dynastic State and the Army under Louis XIV: Royal Service and Private Interest, 1661-1701. Cambridge: Cambridge University Press, 2002. xxv + 404 pp. $70....00. Review by WENDY F. KASINEC, SOUTHWESTERN UNIVERSITY. This ambitious and provocative book by Guy Rowlands regarding the army during Louis XIV?s rule situates this vital institution within the context of personal and dynastic concerns held by both the king...

  13. USA Manufacturing: Order (2013-CE-5336)

    Broader source: Energy.gov [DOE]

    DOE ordered USA Manufacturing to pay a $8,000 civil penalty after finding USA Manufacturing had failed to certify that certain models of walk-in cooler and freezer components comply with the applicable energy conservation standards.

  14. Hisense USA: Order (2010-CE-1211)

    Broader source: Energy.gov [DOE]

    DOE issued an Order after entering into a Compromise Agreement with Hisense USA Corp. after finding Hisense USA had failed to certify that certain models of residential refrigerators, refrigerator-freezers, and freezers comply with the applicable energy conservation standards.

  15. Euro Chef USA: Order (2014-CE-23004)

    Broader source: Energy.gov [DOE]

    DOE ordered Euro Chef USA Inc. to pay a $8,000 civil penalty after finding Euro Chef USA had failed to certify that certain models of cooking products comply with the applicable energy conservation standards.

  16. Upcoming Management and Operating (M&O) Contract Competition...

    National Nuclear Security Administration (NNSA)

    Upcoming Management and Operating (M&O) Contract Competition | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile...

  17. MoRu/Be multilayers for extreme ultraviolet applications

    DOE Patents [OSTI]

    Bajt, Sasa C. (Livermore, CA); Wall, Mark A. (Stockton, CA)

    2001-01-01T23:59:59.000Z

    High reflectance, low intrinsic roughness and low stress multilayer systems for extreme ultraviolet (EUV) lithography comprise amorphous layers MoRu and crystalline Be layers. Reflectance greater than 70% has been demonstrated for MoRu/Be multilayers with 50 bilayer pairs. Optical throughput of MoRu/Be multilayers can be 30-40% higher than that of Mo/Be multilayer coatings. The throughput can be improved using a diffusion barrier to make sharper interfaces. A capping layer on the top surface of the multilayer improves the long-term reflectance and EUV radiation stability of the multilayer by forming a very thin native oxide that is water resistant.

  18. Interdiffusion between Zr Diffusion Barrier and U-Mo Alloy

    SciTech Connect (OSTI)

    K. Huang; Y. Park; Y. H. Sohn

    2012-12-01T23:59:59.000Z

    U-Mo alloys are being developed as low enrichment uranium fuels under the Reduced Enrichment for Research and Test Reactor (RERTR) program. Significant reactions have been observed between U-Mo fuels and Al or Al alloy matrix. Refractory metal Zr has been proposed as barrier material to reduce the interactions. In order to investigate the compatibility and barrier effects between U-Mo alloy and Zr, solid-to-solid U-10wt.%Mo vs. Zr diffusion couples were assembled and annealed at 600, 700, 800, 900 and 1000 °C for various times. The microstructures and concentration profiles due to interdiffusion and reactions were examined via scanning electron microscopy and electron probe microanalysis, respectively. Intermetallic phase Mo2Zr was found at the interface and its population increased when annealing temperature decreased. Diffusion paths were also plotted on the U-Mo-Zr ternary phase diagrams with good consistency. The growth rate of interdiffusion zone between U-10wt.%Mo and Zr was also calculated under the assumption of parabolic diffusion, and was determined to be about 103 times lower than the growth rate of diffusional interaction layer found in diffusion couples U-10wt.%Mo vs. Al or Al-Si alloy. Other desirable physical properties of Zr as barrier material, such as neutron adsorption rate, melting point and thermal conductivity are presented as supplementary information to demonstrate the great potential of Zr as the diffusion barrier for U-Mo fuel systems in RERTR.

  19. Mo Year Report Period: EIA ID NUMBER:

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells, Wisconsin:DeploymentSite Name:24,High824 2.839 2.8352.747 2.759 2.699Mo

  20. Catalytic Properties of Supported MoO3 Catalysts for Oxidative Dehydrogenation of Propane

    E-Print Network [OSTI]

    Iglesia, Enrique

    Catalytic Properties of Supported MoO3 Catalysts for Oxidative Dehydrogenation of Propane Kaidong The effects of MoOx structure on propane oxidative dehydrogenation (ODH) rates and selectivity were examined with those obtained on MoOx/ZrO2. On MoOx/Al2O3 catalysts, propane turnover rate increased with increasing Mo

  1. About Total Lubricants USA, Inc. Headquartered in Linden, New Jersey, Total Lubricants USA provides

    E-Print Network [OSTI]

    Fisher, Kathleen

    New Jersey, Total Lubricants USA provides advanced quality industrial lubrication productsAbout Total Lubricants USA, Inc. Headquartered in Linden, New Jersey, Total Lubricants USA provides. A subsidiary of Total, S.A., the world's fourth largest oil company, Total Lubricants USA still fosters its

  2. Fusion Engineering and Design 41 (1998) 377383 ARIES-RS maintenance approach for high availability

    E-Print Network [OSTI]

    California at San Diego, University of

    1998-01-01T23:59:59.000Z

    . Louis, MO 63166-0516, USA Abstract The ARIES-RS tokamak power plant study developed a design approach as reported by Mau [3]. The ARIES-RS design is based on a commercial fusion power plant with a net electric on design features leading to high overall availability of the plant. The availability of a power station

  3. On a Class of Systems Describing Tumor Anti-Angiogenesis under Gompertzian Growth

    E-Print Network [OSTI]

    Ledzewicz, Urszula

    treatments 1 Introduction The reason for the failure of most cancer chemother- apy treatments lies in both of the therapy. One approach to cancer treatments that tries to circumvent the problem of drug resistance, St. Louis, Mo, 63130 USA hms@wustl.edu Abstract: Anti-angiogenic therapy is a novel treatment

  4. INNOVATIVE DESIGN AND MATERIAL SOLUTIONS OF THERMAL CONTACT LAYERS FOR HIGH HEAT FLUX APPLICATIONS IN FUSION

    E-Print Network [OSTI]

    Tillack, Mark

    McDonnel Douglas Aerospace, MC 306-4204, St. Louis, MO 63166-0516 J. Haines, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831, USA M.S. Tillack Mechanical Aerospace and Nuclear Engineering Dept of a metal alloy, treated in the semi-solid region in such a way as to lead to a fine dispersion

  5. Profile hidden Markov models Sean R. Eddy

    E-Print Network [OSTI]

    Eddy, Sean

    Profile hidden Markov models Sean R. Eddy Dept. of Genetics, Washington University School of Medicine 4566 Scott Ave., St. Louis MO 63110 USA eddy@genetics.wustl.edu keywords: profiles, hidden Markov models, protein families Abstract Summary: I review the recent literature on profile hid­ den Markov

  6. Nuclear Physics A 809 (2008) 275289 www.elsevier.com/locate/nuclphysa

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    constrains the effective Majorana mass of the neutrino, also becomes uncertain within this factor of 3. Here.S. Kapusta b a Laboratory for the Space Sciences and Physics Department, Washington University, CB1105, One Brookings Drive, Saint Louis, MO 63130, USA b Activation Laboratories LTD, 1336 Sandhill Drive, Ancaster, ON

  7. Naum Lazarevich Gurvich (19051981) and his contribution to the history of defibrillation

    E-Print Network [OSTI]

    . Efimov, PhD The Lucy and Stanley Lopata Distinguished Professor of Biomedical Engineering Department of Biomedical Engineering Washington University, 1 Brookings Drive Saint Louis, MO, 63130 USA e- mail: igor of the lifetime labor of many prominent physiologists from Denmark, Italy, England, Germany, France, Switzerland

  8. arXiv:astro-ph/0603013v11Mar2006 Accepted for publication in the Astrophysical Journal

    E-Print Network [OSTI]

    . Louis, MO 63130, USA 2 Physics Department, Tanta University, Tanta, Egypt 3 School of Physics Observatory, Harvard-Smithsonian CfA, P.O. Box 97, Amado, AZ 85645-0097 8 High Energy Astrophysics Institute. The X-ray observations gave a data set with high signal-to-noise light curves and energy spectra

  9. Air to Air Communication Protocol Arjan Durresi1

    E-Print Network [OSTI]

    Jain, Raj

    1 Air to Air Communication Protocol Arjan Durresi1 , Vamsi Paruchuri1 , Leonard Barolli2 and Raj. Louis, MO 63130, USA 314-935-4963, jain@cse.wustl.edu Abstract--We present Air to Air Communication (AAC........................................................2 3. AIR TO AIR COMMUNICATION..............................3 4. SIMULATIONS

  10. Fusion Engineering and Design 3940 (1998) 323331 High heat flux thermalhydraulic analysis of ITER divertor and

    E-Print Network [OSTI]

    Raffray, A. René

    4204, P.O. Box 516, Saint Louis, MO, USA Abstract Three separate cooling systems are used and cost requirements are also taken into consideration. This paper summarises the three cooling system and the weight which can be handled by the remote handling equipment ( 4.3 tons). Three types of shielding

  11. Building Commissioning in the USA

    E-Print Network [OSTI]

    Castro, N.; Friedman, H.

    2006-01-01T23:59:59.000Z

    Building Commissioning in the USA Natascha Castro, Annex 47- US Team Leader National Institute of Standards and Technology Hannah Friedman, Cost-Benefit Subtask Leader Portland Energy Conservation, Inc. Asian Pacific Conference on Building... Program (PIER)? Utility programs and non-profit organizations ? Energy Efficiency Mandates ? California, New York, Vermont, Minnesota, City of Portland Oregon ? Building Energy Codes include Cx ? California, State of Washington, Massachusetts US Team...

  12. Neutron Hole States of Mo-93,95

    E-Print Network [OSTI]

    Bindal, P. K.; Youngblood, David H.; Kozub, R. L.

    1977-01-01T23:59:59.000Z

    - topes but less than half is observed for '"Mo. The hole strength distributions for l =1 and 4 are displayed in Fig. 10 for all the Mo isotopes. It is apparent from this figure that the states corres- ponding to lgg/2 2Py/2 and 2P, /, orbitals, which...

  13. Proceedings of 2006 NSF Design, Service, and Manufacturing Grantees and Research Conference, St. Louis, Missouri Grant: #DMI-0500453 Online Dynamic Control of Cooling in Continuous Casting of Thin Steel Slabs

    E-Print Network [OSTI]

    Thomas, Brian G.

    Proceedings of 2006 NSF Design, Service, and Manufacturing Grantees and Research Conference, St, and Manufacturing Grantees and Research Conference, St. Louis, Missouri Grant: #DMI- 0500453 2 1. Introduction

  14. Neutrino scattering off the stable even-even Mo isotopes

    SciTech Connect (OSTI)

    Balasi, K. G.; Kosmas, T. S.; Divari, P. C. [Theoretical Physics Section, University of Ioannina, GR 45110 Ioannina (Greece)

    2009-11-09T23:59:59.000Z

    Inelastic neutrino-nucleus reaction cross sections are studied focusing on the neutral current processes. Particularly, we investigate the angular and initial neutrino-energy dependence of the differential and integrated cross sections for low and intermediate energies of the incoming neutrino. The nuclear wave functions for the initial and final nuclear states are constructed in the context of the quasi-particle random phase approximation (QRPA) tested on the reproducibility of the low-lying energy spectrum. The results presented here refer to the isotopes Mo{sup 92}, Mo{sup 94}, Mo{sup 96}, Mo{sup 98} and Mo{sup 100}. These isotopes could play a significant role in supernova neutrino detection in addition to their use in double-beta and neutrinoless double-beta decay experiments (e.g. MOON, NEMO III)

  15. Demonstration of resonant photopumping of Mo VII by Mo XII for a VUV laser near 600 {Angstrom}

    SciTech Connect (OSTI)

    Ilcisin, K.J.; Aumayr, F.; Schwob, J.L.; Suckewer, S.

    1993-09-01T23:59:59.000Z

    We present data of experiments on the resonant photopumping of Mo VII by Mo XII as a method of generating a coherent VUV source near 600 {angstrom}. The experiment is based on a scheme proposed by Feldman and Reader in which the 4p{sup 6} -- 4p{sup 5}6s transition in Mo VII in resonantly photopumped by the 5s {sup 2}S{sub 1/2} -- 4p {sup 2}P{sub 1/2} transition in Mo XII. Results of the laser produced plasma experiments show the successful enhancement of the population of the Mo VII 4p{sup 5}6s upper lasing level when pumped by an adjacent Mo VII plasma. No enhancement was seen in a control experiment where the Mo VII plasma was pumped by a Zr X plasma. Improvements of the intensity of the Mo XII pump source, achieved using an additional pump laser, lead to the generation of a population inversion for the VUV transition.

  16. Vestas USA | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown of Ladoga,planningFlowmeter Logging Jump to: navigation,Vestas USA Place:

  17. A novel three dimensional semimetallic MoS{sub 2}

    SciTech Connect (OSTI)

    Tang, Zhen-Kun [Beijing Computational Science Research Center, Beijing 100084 (China); Departments of Physics and Electronics, Hengyang Normal University, Hengyang 421008 (China); Zhang, Hui; Liu, Li-Min, E-mail: limin.liu@csrc.ac.cn [Beijing Computational Science Research Center, Beijing 100084 (China); Liu, Hao [Chengdu Green Energy and Green Manufacturing Technology R and D Center, Chengdu, Sichuan 610207 (China); Lau, Woon-Ming [Beijing Computational Science Research Center, Beijing 100084 (China); Chengdu Green Energy and Green Manufacturing Technology R and D Center, Chengdu, Sichuan 610207 (China)

    2014-05-28T23:59:59.000Z

    Transition metal dichalcogenides (TMDs) have many potential applications, while the performances of TMDs are generally limited by the less surface active sites and the poor electron transport efficiency. Here, a novel three-dimensional (3D) structure of molybdenum disulfide (MoS{sub 2}) with larger surface area was proposed based on first-principle calculations. 3D layered MoS{sub 2} structure contains the basal surface and joint zone between the different nanoribbons, which is thermodynamically stable at room temperature, as confirmed by first principles molecular dynamics calculations. Compared the two-dimensional layered structures, the 3D MoS{sub 2} not only owns the large surface areas but also can effectively avoid the aggregation. Interestingly, although the basal surface remains the property of the intrinsic semiconductor as the bulk MoS{sub 2}, the joint zone of 3D MoS{sub 2} exhibits semimetallic, which is derived from degenerate 3d orbitals of the Mo atoms. The high stability, large surface area, and high conductivity make 3D MoS{sub 2} have great potentials as high performance catalyst.

  18. Criticality Safety Scoping Study for the Transport of Weapons-Grade Mixed-Oxide Fuel Using the MO-1 Shipping Package

    SciTech Connect (OSTI)

    Dunn, M.E.; Fox, P.B.

    1999-05-01T23:59:59.000Z

    This report provides the criticality safety information needed for obtaining certification of the shipment of mixed-oxide (MOX) fuel using the MO-1 [USA/9069/B()F] shipping package. Specifically, this report addresses the shipment of non-weapons-grade MOX fuel as certified under Certificate of Compliance 9069, Revision 10. The report further addresses the shipment of weapons-grade MOX fuel using a possible Westinghouse fuel design. Criticality safety analysis information is provided to demonstrate that the requirements of 10 CFR S 71.55 and 71.59 are satisfied for the MO-1 package. Using NUREG/CR-5661 as a guide, a transport index (TI) for criticality control is determined for the shipment of non-weapons-grade MOX fuel as specified in Certificate of Compliance 9069, Revision 10. A TI for criticality control is also determined for the shipment of weapons-grade MOX fuel. Since the possible weapons-grade fuel design is preliminary in nature, this report is considered to be a scoping evaluation and is not intended as a substitute for the final criticality safety analysis of the MO-1 shipping package. However, the criticality safety evaluation information that is presented in this report does demonstrate the feasibility of obtaining certification for the transport of weapons-grade MOX lead test fuel using the MO-1 shipping package.

  19. Diffusion Barrier Selection from Refractory Metals (Zr, Mo and Nb) via Interdiffusion Investigation for U-Mo RERTR Fuel Alloy

    SciTech Connect (OSTI)

    K. Huang; C. Kammerer; D. D. Keiser, Jr.; Y. H. Sohn

    2014-04-01T23:59:59.000Z

    U-Mo alloys are being developed as low enrichment monolithic fuel under the Reduced Enrichment for Research and Test Reactor (RERTR) Program. Diffusional interactions between the U-Mo fuel alloy and Al-alloy cladding within the monolithic fuel plate construct necessitate incorporation of a barrier layer. Fundamentally, a diffusion barrier candidate must have good thermal conductivity, high melting point, minimal metallurgical interaction, and good irradiation performance. Refractory metals, Zr, Mo, and Nb are considered based on their physical properties, and the diffusion behavior must be carefully examined first with U-Mo fuel alloy. Solid-to-solid U-10wt.%Mo vs. Mo, Zr, or Nb diffusion couples were assembled and annealed at 600, 700, 800, 900 and 1000 degrees C for various times. The interdiffusion microstructures and chemical composition were examined via scanning electron microscopy and electron probe microanalysis, respectively. For all three systems, the growth rate of interdiffusion zone were calculated at 1000, 900 and 800 degrees C under the assumption of parabolic growth, and calculated for lower temperature of 700, 600 and 500 degrees C according to Arrhenius relationship. The growth rate was determined to be about 10 3 times slower for Zr, 10 5 times slower for Mo and 10 6 times slower for Nb, than the growth rates reported for the interaction between the U-Mo fuel alloy and pure Al or Al-Si cladding alloys. Zr, however was selected as the barrier metal due to a concern for thermo- mechanical behavior of UMo/Nb interface observed from diffusion couples, and for ductile-to-brittle transition of Mo near room temperature.

  20. Effect of Mo Dispersion Size and Water Vapor on Oxidation of Two-Phase Directionally Solidified NiAl-9Mo In-Situ Composites

    SciTech Connect (OSTI)

    Brady, Michael P [ORNL] [ORNL; Bei, Hongbin [ORNL] [ORNL; Meisner, Roberta Ann [ORNL] [ORNL; Lance, Michael J [ORNL] [ORNL; Tortorelli, Peter F [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    Oxidation of two-phase NiAl-9Mo eutectics with 3 different growth rates/2nd phase Mo dispersion sizes were investigated at 900 C in air and air with 10% water vapor. Good oxidation resistance via alumina formation was observed in dry air, with Mo volatilization loss minimized by fine submicron Mo dispersions. However, extensive Mo volatilization and in-place internal oxidation of prior Mo phase regions was observed in wet air oxidation. Ramifications of this phenomenon for the development of multi-phase high-temperature alloys are discussed

  1. Fracture and fatigue resistance of MoSiB alloys for ultrahigh-temperature structural applications

    E-Print Network [OSTI]

    Ritchie, Robert

    Fracture and fatigue resistance of Mo­Si­B alloys for ultrahigh-temperature structural applications­Mo3Si­Mo5SiB2 alloys, which utilize a continuous a-Mo matrix to achieve unprecedented room. Introduction For applications such as aerospace engines and power generation, future advancements are limited

  2. Oxidation, Reduction, and Condensation of Alcohols over (MO3...

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

    Alcohols over (MO3)3 (MMo, W) Nanoclusters . Abstract: The reactions of deuterated methanol, ethanol, 1-propanol, 1-butanol, 2-propanol, 2-butanol and t-butanol over cyclic...

  3. Co-Mo Electric Cooperative- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Co-Mo Electric Cooperative provides rebates to residential and commercial members who install air source, dual fuel, and/or geothermal heat pumps, and certain energy efficient appliances. The...

  4. 9 Cr-- 1 Mo steel material for high temperature application

    DOE Patents [OSTI]

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

    2012-11-27T23:59:59.000Z

    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.

  5. Q value of the 100Mo Double-Beta Decay

    E-Print Network [OSTI]

    S. Rahaman; V. -V. Elomaa; T. Eronen; J. Hakala; A. Jokinen; J. Julin; A. Kankainen; A. Saastamoinen; J. Suhonen; C. Weber; J. Äystö

    2007-12-20T23:59:59.000Z

    Penning trap measurements using mixed beams of 100Mo - 100Ru and 76Ge - 76Se have been utilized to determine the double-beta decay Q-values of 100Mo and 76Ge with uncertainties less than 200 eV. The value for 76Ge, 2039.04(16) keV is in agreement with the published SMILETRAP value. The new value for 100Mo, 3034.40(17) keV is 30 times more precise than the previous literature value, sufficient for the ongoing neutrinoless double-beta decay searches in 100Mo. Moreover, the precise Q-value is used to calculate the phase-space integrals and the experimental nuclear matrix element of double-beta decay.

  6. Ethanol Conversion on Cyclic (MO3)3 (M = Mo, W) Clusters

    SciTech Connect (OSTI)

    Li, Zhenjun; Fang, Zongtang; Kelley, Matthew S.; Kay, Bruce D.; Rousseau, Roger J.; Dohnalek, Zdenek; Dixon, David A.

    2014-03-06T23:59:59.000Z

    Oxides of molybdenum and tungsten are an important class of catalytic materials with applications ranging from isomerization of alkanes and alkenes, partial oxidation of alcohols, selective reduction of nitric oxide and metathesis of alkeness.[1-10] While many studies have focused on the structure - function relationships, the nature of high catalytic activity is still being extensively investigated. There is a general agreement that the activity of supported MOx (M = W, Mo) catalysts is correlated with the presence of acidic sites, where the catalytic activity is strongly affected by the type of oxide support, delocalization of electron density, structures of tungsten oxide domains and presence of protons

  7. 1Mohammed Atiquzzaman, University of Oklahoma, USA.

    E-Print Network [OSTI]

    Atiquzzaman, Mohammed

    1Mohammed Atiquzzaman, University of Oklahoma, USA. Presentation at Tohoku University, Japan Aug 6 of Computer Science University of Oklahoma. Email: atiq@ieee.org Web: www.cs.ou.edu/~atiq Tohoku University, Sendai, Japan. Aug 6, 2002. #12;2Mohammed Atiquzzaman, University of Oklahoma, USA. Presentation

  8. 1Mohammed Atiquzzaman, University of Oklahoma, USA.

    E-Print Network [OSTI]

    Atiquzzaman, Mohammed

    1Mohammed Atiquzzaman, University of Oklahoma, USA. Presentation at Tohoku University, Japan Aug 6 of Computer Science University of Oklahoma. Email: atiq@ieee.org Web: www.cs.ou.edu/~atiq Presentation at Tohoku University, Sendai, Japan. Aug 6, 2002. #12;2Mohammed Atiquzzaman, University of Oklahoma, USA

  9. Upcoming H2USA Workshop: Hydrogen Fueling Station Component Listings...

    Office of Environmental Management (EM)

    H2USA Workshop: Hydrogen Fueling Station Component Listings Upcoming H2USA Workshop: Hydrogen Fueling Station Component Listings April 21, 2015 - 1:04pm Addthis H2USA will host an...

  10. MoSe2 thin films synthesized by solid state reactions between Mo and Se J. Pouzet (1) and J. C. Bernede (2)

    E-Print Network [OSTI]

    Boyer, Edmond

    807 MoSe2 thin films synthesized by solid state reactions between Mo and Se thin films J. Pouzet (1 reaction, induced by annealing, between the Mo and Se constituents in thin films form. The films have been thin films annealed under selenium pressure at only 770 K are well crystallized. The electrical

  11. Coated U(Mo) Fuel: As-Fabricated Microstructures

    SciTech Connect (OSTI)

    Emmanuel Perez; Dennis D. Keiser, Jr.; Ann Leenaers; Sven Van den Berghe; Tom Wiencek

    2014-04-01T23:59:59.000Z

    As part of the development of low-enriched uranium fuels, fuel plates have recently been tested in the BR-2 reactor as part of the SELENIUM experiment. These fuel plates contained fuel particles with either Si or ZrN thin film coating (up to 1 µm thickness) around the U-7Mo fuel particles. In order to best understand irradiation performance, it is important to determine the starting microstructure that can be observed in as-fabricated fuel plates. To this end, detailed microstructural characterization was performed on ZrN and Si-coated U-7Mo powder in samples taken from AA6061-clad fuel plates fabricated at 500°C. Of interest was the condition of the thin film coatings after fabrication at a relatively high temperature. Both scanning electron microscopy and transmission electron microscopy were employed. The ZrN thin film coating was observed to consist of columns comprised of very fine ZrN grains. Relatively large amounts of porosity could be found in some areas of the thin film, along with an enrichment of oxygen around each of the the ZrN columns. In the case of the pure Si thin film coating sample, a (U,Mo,Al,Si) interaction layer was observed around the U-7Mo particles. Apparently, the Si reacted with the U-7Mo and Al matrix during fuel plate fabrication at 500°C to form this layer. The microstructure of the formed layer is very similar to those that form in U-7Mo versus Al-Si alloy diffusion couples annealed at higher temperatures and as-fabricated U-7Mo dispersion fuel plates with Al-Si alloy matrix fabricated at 500°C.

  12. area nevada usa: Topics by E-print Network

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

    Position Description Internship Program Goal: Bell Nursery USA, LLC - is a wholesale grower of quality bedding plants, pot. Intern Project: 12;Bell Nursery USA, LLC The...

  13. USA Science and Engineering Festival: Inspiring and Educating...

    Energy Savers [EERE]

    USA Science and Engineering Festival: Inspiring and Educating the Clean Energy Workforce of Tomorrow USA Science and Engineering Festival: Inspiring and Educating the Clean Energy...

  14. MOU signed between CIAE and Jefferson National Lab, USA. (China...

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

    https:www.jlab.orgnewsarticlesmou-signed-between-ciae-and-jefferson-national-lab-usa-china-nuclear-industry-news-ge... MOU signed between CIAE and Jefferson National Lab, USA....

  15. alexandria virginia usa: Topics by E-print Network

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

    Now at University of Wisconsin, USA. Permanent address: Northeastern University, Department of Physics, Boston, 02115 MA, USA. Now at NIKHEF P.O.B. 41882 Dutz, Hartmut 8...

  16. Commissions Thses et HDR FRANCOISE Jean-Pierre, Prsident UMR 7598 LABORATOIRE JACQUES-LOUIS LIONS jean-pierre.francoise@upmc.fr 33 1 44 27 85 61

    E-Print Network [OSTI]

    Arleo, Angelo

    Commissions Thèses et HDR FRANCOISE Jean-Pierre, Président UMR 7598 LABORATOIRE JACQUES-LOUIS LIONS jean-pierre.francoise@upmc.fr 33 1 44 27 85 61 LACOMBE Corentin, Gestionnaire ADMINISTRATION DE L'UFR 929 corentin.lacombe@upmc.fr 33 1 44 27 79 88 COLMEZ Pierre UMR 7586 INSTITUT DE MATHEMATIQUES DE

  17. A study of the characteristics of natural light in selected buildings designed by Le Corbusier, Louis I. Kahn and Tadao Ando

    E-Print Network [OSTI]

    Gill, Sukhtej Singh

    2009-06-02T23:59:59.000Z

    century. The three buildings are the Chapel of Notre Dame du Haut Ronchamp by Le Corbusier, the Kimbell Art Museum by Louis I. Kahn and the Church of the Light by Tadao Ando. The method of analysis is based on the selection of a spatial envelope in each...

  18. USA oilgas production cost : recent changes

    E-Print Network [OSTI]

    Adelman, Morris Albert

    1991-01-01T23:59:59.000Z

    During 1984-1989, oil development investment cost in the USA fell, but only because of lower activity. The whole cost curve shifted unfavorably (leftward). In contrast, natural gas cost substantially decreased, the curve ...

  19. USA Manufacturing: Proposed Penalty (2013-CE-5336)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that USA Manufacturing failed to certify walk-in cooler or freezer components as compliant with the energy conservation standards.

  20. Hisense USA: Proposed Penalty (2010-CE-1211)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Hisense USA Corp. failed to certify a variety of residential refrigerators, refrigerator-freezers, and freezers as compliant with the applicable energy conservation standards.

  1. Bell Nursery USA, LLC Internship Position Description

    E-Print Network [OSTI]

    Bell Nursery USA, LLC Internship Position Description Internship Program Goal as a grower. Grower/Internship position : It is our goal at Bell to provide a rewarding and educational experience to the student/intern. The internship position

  2. Multiphonon resonant Raman scattering in MoS{sub 2}

    SciTech Connect (OSTI)

    Go?asa, K., E-mail: Katarzyna.Golasa@fuw.edu.pl; Grzeszczyk, M.; Wysmo?ek, A.; Babi?ski, A. [Faculty of Physics, University of Warsaw, ul. Ho?a 69, 00-681 Warszawa (Poland); Leszczy?ski, P.; Faugeras, C.; Nicolet, A. A. L.; Potemski, M. [Laboratoire National des Champs Magnétiques Intenses, CNRS-UJF-UPS-INSA, 25, avenue des Martyrs, 38042 Grenoble (France)

    2014-03-03T23:59:59.000Z

    Optical emission spectrum of a resonantly (??=?632.8?nm) excited molybdenum disulfide (MoS{sub 2}) is studied at liquid helium temperature. More than 20 peaks in the energy range spanning up to 1400?cm{sup ?1} from the laser line, which are related to multiphonon resonant Raman scattering processes, are observed. The attribution of the observed lines involving basic lattice vibrational modes of MoS{sub 2} and both the longitudinal (LA(M)) and the transverse (TA(M) and/or ZA(M)) acoustic phonons from the vicinity of the high-symmetry M point of the MoS{sub 2} Brillouin zone is proposed.

  3. Identification of phases in the interaction layer between U-Mo-Zr/Al and U-Mo-Zr/Al-Si

    SciTech Connect (OSTI)

    Varela, C.L. Komar; Arico, S.F.; Mirandou, M.; Balart, S.N. [Departamento Materiales, GIDAT, GAEN, CNEA, Avda. Gral Paz 1499, B1650KNA, San Martin (Argentina); Gribaudo, L.M. [Departamento Materiales, GIDAT, GAEN, CNEA, Avda. Gral Paz 1499, B1650KNA, San Martin (Argentina); CONICET, Avda. Rivadavia 1917, C1033AAJ, Buenos Aires (Argentina)

    2008-07-15T23:59:59.000Z

    Out-of-pile diffusion experiments were performed between U-7wt.% Mo-1wt.% Zr and Al or Al A356 (7,1wt.% Si) at 550 deg. C. In this work morphological characterization and phase identification on both interaction layer are presented. They were carried out by the use of different techniques: optical and scanning electron microscopy, X-Ray diffraction and WDS microanalysis. In the interaction layer U-7wt.% Mo-1wt.% Zr/Al, the phases UAl{sub 3}, UAl{sub 4}, Al{sub 20}Mo{sub 2}U and Al{sub 43}Mo{sub 4}U{sub 6} were identified. In the interaction layer U-7wt.% Mo-1wt.% Zr/Al A356, the phases U(Al, Si) with 25at.% Si and Si{sub 5}U{sub 3} were identified. This last phase, with a higher Si concentration, was identified with XRD Synchrotron radiation performed at the National Synchrotron Light Laboratory (LNLS), Campinas, Brasil. (author)

  4. Hydrotreatment of Athabasca bitumen derived gas oil over Ni-Mo, Ni-W, and Co-Mo catalysts

    SciTech Connect (OSTI)

    Diaz-Real, R.A.; Mann, R.S.; Sambi, I.S. (Univ. of Ottawa, Ontario (Canada). Dept. of Chemical Engineering)

    1993-07-01T23:59:59.000Z

    The hydrotreatment of Athabasca bitumen derived heavy gas oil containing 4.08% S and 0.49% N was carried out in a trickle bed reactor over Ni-W, Ni-Mo, and Co-Mo catalysts supported on zeolite-alumina-silica at 623-698 K, LHSV of 1-4, gas flow rate 890 m[sup 3][sub H2]/m[sup 3][sub oil] (5,000 sef/bbl), and pressure of 6.89 MPa. Analyses for viscosity, density, aniline point, ASTM mid boiling point distillation, C/H ratio, and percentage of N and S in the final product were carried out to characterize the product oil. The amounts of N and S removed indicated the hydrodenitrogenation and hydrodesulfurization activity of the catalysts. Results of zeolite-alumina-silica-supported catalysts are compared to those obtained with commercially available Ni-Mo, Ni-W, and Co-Mo on [gamma]-alumina. Ni-Mo supported on zeolite-alumina-silica was most active and could remove as much as 99 % S and 89% N present in the oil at 698 K. The data for HDN and HDS fitted the pseudo first order model. The kinetic model is described in detail.

  5. Structure And Radiation Damage Behavior Of Epitaxial CrxMo1-x...

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

    And Radiation Damage Behavior Of Epitaxial CrxMo1-x Alloy Thin Films On MgO. Structure And Radiation Damage Behavior Of Epitaxial CrxMo1-x Alloy Thin Films On MgO. Abstract:...

  6. Adsorption of Potassium on the MoS2(100) Surface: A First-Principles...

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

    Potassium on the MoS2(100) Surface: A First-Principles Investigation. Adsorption of Potassium on the MoS2(100) Surface: A First-Principles Investigation. Abstract: Periodic density...

  7. High Capacity MoO3 Nanoparticle Li-Ion Battery Anode

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

    energy functional were employed.) 10 AccomplishmentStatus Theoretical changes in Li-ion intercalated -MoO 3 Mo Li O * Four Li inserted in a theoretical nanoparticle. * 9 ps...

  8. Domestic production of medical isotope Mo-99 moves a step closer

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

    Domestic production of medical isotope Mo-99 Domestic production of medical isotope Mo-99 moves a step closer Irradiated uranium fuel has been recycled and reused for molybdenum-99...

  9. St. Louis Airport Site. Annual site environmental report, calendar year 1985. Formerly Utilized Sites Remedial Action Program (FUSRAP). Revision 1

    SciTech Connect (OSTI)

    Not Available

    1986-09-01T23:59:59.000Z

    During 1985, the environmental monitoring program was continued at the St. Louis Airport Site (SLAPS) in St. Louis County, Missouri. The ditches north and south of the site have been designated for cleanup as part of the Formerly Utilized Sites Remedial Action Program (FUSRAP). The monitoring program at the SLAPS measures radon gas concentrations in air; external gamma radiation dose rates; and uranium, thorium, and radium concentrations in surface water, groundwater, and sediment. Potential radiation doses to the public are also calculated. Because the site is not controlled or regulated by the DOE, the DOE Derived Concentration Guides (DCGs) are not applicable to SLAPS, but are included only as a basis for comparison. The DOE DCGs and the DOE radiation protection standard have been revised. (Appendix B). During 1985, annual average radon levels in air at the SLAPS were below the DCG for uncontrolled areas. External gamma monitoring in 1985 showed measured annual gamma dose rates ranging from 3 to 2087 mrem/y, with the highest value occurring in an area known to be contaminated. The calculated maximum dose at the site boundary, assuming limited occupancy, would be 6 mrem/y. Average annual concentrations of /sup 230/Th, /sup 226/Ra, and total uranium in surface waters remained below the DOE DCG. The on-site groundwater measurements showed that average annual concentrations of /sup 230/Th, /sup 226/Ra and total uranium were within the DOE DCGs. Although there are no DCGs for sediments, all concentrations of total uraniu, /sup 230/Th, and /sup 226/Ra were below the FUSRAP Guidelines.

  10. Corrosion report for the U-Mo fuel concept

    SciTech Connect (OSTI)

    Henager, Jr., Charles H. [Pacific Northwest National Laboratory (PNNL), Richland, WA (US); Bennett, Wendy D. [Pacific Northwest National Laboratory (PNNL), Richland, WA (US); Doherty, Ann L. [Pacific Northwest National Laboratory (PNNL), Richland, WA (US); Fuller, E. S. [Pacific Northwest National Laboratory (PNNL), Richland, WA (US); Hardy, John S. [Pacific Northwest National Laboratory (PNNL), Richland, WA (US); Omberg, Ronald P. [Pacific Northwest National Laboratory (PNNL), Richland, WA (US)

    2014-08-28T23:59:59.000Z

    The Fuel Cycle Research and Development (FCRD) program of the Office of Nuclear Energy (NE) has implemented a program to develop a Uranium-Molybdenum (U-Mo) metal fuel for Light Water Reactors (LWR)s. Uranium-Molybdenum fuel has the potential to provide superior performance based on its thermo-physical properties, which includes high thermal conductivity for less stored heat energy. With sufficient development, it may be able to provide the Light Water industry with a melt-resistant accident tolerant fuel with improved safety response. However, the corrosion of this fuel in reactor water environments needs to be further explored and optimized by additional alloying. The Pacific Northwest National Laboratory has been tasked with performing ex-reactor corrosion testing to characterize the performance of U-Mo fuel. This report documents the results of the effort to characterize and develop the U-Mo metal fuel concept for LWRs with regard to corrosion testing. The results of a simple screening test in buffered water at 30°C using surface alloyed U-10Mo is documented and discussed. The screening test was used to guide the selection of several potential alloy improvements that were found and are recommended for further testing in autoclaves to simulate PWR water conditions more closely.

  11. Introduction THE YERINGTON DISTRICT, Nevada, contains porphyry Cu(Mo),

    E-Print Network [OSTI]

    Barton, Mark D.

    55 Introduction THE YERINGTON DISTRICT, Nevada, contains porphyry Cu(Mo), Cu skarn, Fe oxide with the Jurassic Yerington batholith, which serves as either host rock or as source for heat and ma- terials of the Yerington Porphyry Copper District: Magmatic to Nonmagmatic Sources of Hydrothermal Fluids, Their Flow Paths

  12. H2USA | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of Blythe Solar Power Project Groundof|than Ever | DepartmentofH2USA H2USA

  13. The growth and characterization of LiGd?(Mo0?)? single crystals

    E-Print Network [OSTI]

    Reimund, James Allyn

    1981-01-01T23:59:59.000Z

    ' C/second 37 Pyroelectric Current vs. Temperature dT/dt = 30' C/second 180' Domains (Gd (MoO ) ) 37 39 INTRODUCTION This thesis discusses the growth and some single crystalline properties of lithium-gadolinium-molybdate of the type LiGd (Mo...O ) 3 45' This compound is one of the three thus far discovered compounds of the lithium ? gadolinium-molybdate (LGMO) system. In general, this system can be expressed as Li2Mo04. XGd2(Mo04)3, where LiGd3(MoO, )5 4 5 single crystals synthesize when X...

  14. LORRAINE A. DELHORNE, M.S. EMAIL: delhorne@bu.edu

    E-Print Network [OSTI]

    Guenther, Frank

    EDUCATION Ashland College, Ashland, OH B.A. Speech and Hearing Washington University, St. Louis, MO M

  15. IEEE Energy2030 Atlanta, Georgia, USA

    E-Print Network [OSTI]

    Ratnasamy, Sylvia

    an innovative electric power architecture, rooted in lessons learned from the Internet and microgrids, whichIEEE Energy2030 Atlanta, Georgia, USA 17-18 November 2008 An Architecture for Local Energy-disruptive incremental adoption. Such a system, which we term a "LoCal" grid, is controlled by intelligent power switches

  16. Black Shales Adina Paytan, Stanford University, USA

    E-Print Network [OSTI]

    Paytan, Adina

    Tales of Black Shales Adina Paytan, Stanford University, USA Several times during the middle of the Cretaceous period, between 125 and 80 million years ago, organic-carbon-rich black shales were deposited over large areas of the ocean floor. These black shales provide valuable information about past climates

  17. Ocean Thermal Energy Conversion Mostly about USA

    E-Print Network [OSTI]

    Ocean Thermal Energy Conversion History Mostly about USA 1980's to 1990's and bias towards Vega Structures (Plantships) · Bottom-Mounted Structures · Model Basin Tests/ At-Sea Tests · 210 kW OC-OTEC) #12;#12;Claude's Off Rio de Janeiro (1933) · Floating Ice Plant: 2.2 MW OC- OTEC to produce 2000

  18. Ocean Thermal Energy Conversion Mostly about USA

    E-Print Network [OSTI]

    Ocean Thermal Energy Conversion History Mostly about USA 1980's to 1990's and bias towards Vega · Floating Structures (Plantships) · Bottom-Mounted Structures · Model Basin Tests/ At-Sea Tests · 210 kW OC-OTEC: Georges Claude (Open Cycle OTEC) · 1928 Ougree Experiment, France: Factory Water Outflow (33 °C) & Meuse

  19. NEGLIGIBLE CREEP CONDITIONS FOR MOD 9 CR 1 MO STEEL

    SciTech Connect (OSTI)

    Ren, Weiju [ORNL; Riou, Bernard [AREVA Group; Escaravage, Claude [AREVA Group; Swindeman, Robert W [ORNL; Cabrillat, Marie-Th?r?se [CEA Cadarache, St. Paul lex Durance, France; Allais, Lucien [CEA, Saclay, France

    2006-01-01T23:59:59.000Z

    Mod 9 Cr 1 Mo Steel (grade 91) is one of the materials envisaged for the Reactor Pressure Vessel of Very High Temperature Reactors. To avoid the implementation of a surveillance program covering the monitoring of the creep damage throughout the whole life of the reactor, it is recommended to operate the Reactor Pressure Vessel in the negligible creep regime. In this paper, the background of negligible creep criteria available in nuclear Codes is first recalled and their limitations were analyzed. Then, guidance for deriving criteria more appropriate for mod 9 Cr 1 Mo steel is provided. Finally, R&D actions in the U. S. and France to support the new approaches are discussed and recommended.

  20. Dislocations With Edge Components in Nanocrystalline bcc Mo

    SciTech Connect (OSTI)

    G. M. Cheng; W. Z. Xu; W. W. Jian; H. Yuan; M. H. Tsai; Y. T. Zhu; Y. F. Zhang; Paul C. Millett

    2013-07-01T23:59:59.000Z

    We report high-resolution transmission electron microscopy (HRTEM) observation of a high density of dislocations with edge components (approximately 1016 m-2) in nanocrystalline (NC) body-centered cubic (bcc) Mo prepared by high-pressure torsion. We also observed for the first time of the 1/2 <111> and <001> pure edge dislocations in NC Mo. Crystallographic analysis and image simulations reveal that the best way using HRTEM to study dislocations with edge components in bcc systems is to take images along <110> zone axis, from which it is possible to identify 1/2 <111> pure edge dislocations, and edge components of 1/2 <111> and <001> mixed dislocations. The <001> pure edge dislocations can only be identified from <100> zone axis. The high density of dislocations with edge components is believed to play a major role in the reduction of strain rate sensitivity in NC bcc metals and alloys.

  1. Charge and magnetic states of Mn-, Fe-, and Co-doped monolayer MoS{sub 2}

    SciTech Connect (OSTI)

    Lin, Xianqing [State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084 (China); Collaborative Innovation Center of Quantum Matter, Beijing 100084 (China); Department of Applied Physics, Zhejiang University of Technology, Hangzhou 310023 (China); Ni, Jun, E-mail: junni@mail.tsinghua.edu.cn [State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084 (China); Collaborative Innovation Center of Quantum Matter, Beijing 100084 (China)

    2014-07-28T23:59:59.000Z

    First-principles calculations have been performed to investigate the electronic and magnetic properties of monolayer MoS{sub 2} substitutionally doped with Mn, Fe, and Co in possible charge states (q). We find that the Mn, Fe, and Co dopants substituting for a Mo atom in monolayer MoS{sub 2} (Mn@Mo, Fe@Mo, and Co@Mo) are all magnetic in their neutral and charge states except in the highest positive charge states. Mn@Mo, Fe@Mo, and Co@Mo have the same highest negative charge states of q=?2 for chemical potential of electron just below the conduction band minimum, which corresponds to the electron doping. In the q=?2 state, Mn@Mo has a much larger magnetic moment than its neutral state with the antiferromagnetic coupling between the Mn dopant and its neighboring S atoms maintained, while Fe@Mo and Co@Mo have equal or smaller magnetic moments than their neutral states. The possible charge states of Mn@Mo, Fe@Mo, and Co@Mo and the variation of the magnetic moments for different dopants and charge states are due to the change of the occupation and energy of the anti-bonding defect levels in the band gap. The rich magnetic properties of the neutral and charge states suggest possible realization of the substitutionally Mn-, Fe-, and Co-doped monolayer MoS{sub 2} as dilute magnetic semiconductors.

  2. NO. REV. MO. _ ALSEP/LCRU EMC Test Results

    E-Print Network [OSTI]

    Rathbun, Julie A.

    NO. REV. MO. ATM 1050 _ ALSEP/LCRU EMC Test Results PAGE 1 OF 10 DATE 19 August 1971 The results of the ALSEP/LCRU EMC test are reported in this ATM. C~.·--~ s--·~e'Jn~,__')!).Prepared by:__~~~"f--.;;.~-------- Approved by: ~JM.MD. ithian #12;NO. RIV. NO. ATM 1050 ALSEP/LCRU EMC Test Results 2 10PAGE OF Aall

  3. alto ca usa: Topics by E-print Network

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

    of Technology, Pasadena, CA 91109, USA; amainzer@jpl.nasa.gov 2 Infrared Processing, Tucson, AZ 85719, USA 4 Department of Physics and Astronomy, UCLA, P.O. Box 91547, Los...

  4. austin tx usa: Topics by E-print Network

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

    78712, USA b Bureau of Economic Geology, Jackson School of Geology, The University of Texas at Austin, Austin, TX 78713, USA c Department of Mathematics Minkoff, Susan E. 50...

  5. Smeg USA: Order (2011-CE-14/1909)

    Broader source: Energy.gov [DOE]

    DOE ordered Smeg USA, Inc. to pay a $6,000 civil penalty after finding Smeg USA had failed to certify that certain models of dishwashers and refrigerators comply with the applicable energy conservation standards.

  6. DuraLamp USA: Order (2010-CE-0912)

    Broader source: Energy.gov [DOE]

    DOE ordered DuraLamp USA, Inc. to pay a $2,500 civil penalty after finding DuraLamp USA had failed to certify that model PAR 30, an incandescent reflector lamp, complies with the applicable energy conservation standards.

  7. Long-term corrosion of Cr-Mo steels in superheated steam at 482 and 538/sup 0/C. [21/4 Cr-1 Mo; 9 Cr-1 Mo; Sumitomo 9 Cr-2 Mo; Sandvik HT-9

    SciTech Connect (OSTI)

    Griess, J.C.; DeVan, J.H.; Maxwell, W.A.

    1980-01-01T23:59:59.000Z

    The corrosion of several Cr-Mo ferritic steels was investigated in superheated steam at an operating power plant. Tests were conducted at 482 and 538/sup 0/C (900 and 1000/sup 0/F) in a once-through loop for times up to 28,000 h. Chromium concentrations ranged from 2.0 to 11.3%, and the effect of surface preparation on corrosion was investigated. Only one of many specimens showed evidence of exfoliation at 482/sup 0/C, but at 538/sup 0/C exfoliation occurred on at least some of the specimens of most materials; the exceptions were the alloy with the highest chromium content (Sandvik HT-9), one heat of 9 Cr-1 Mo steel with the highest silicon content, and Sumitomo 9 Cr-2 Mo steel, which was in test for only 19,000 h. Parabolic oxidation kinetics adequately described the corrosion process for about the first year, after which corrosion rates were constant and lower than predicted from extrapolation of the initial part of the penetration versus time curves. With chromium concentrations between 2 and 9%, corrosion behavior was independent of chromium content, and corrosion was only slightly less with Sandvik HT-9. Corrosion was nearly independent of surface preparation, but in two cases the presence of mill scale on the surface prior to steam exposure seemed to retard oxidation in steam. 11 figures, 5 tables.

  8. IRRADIATION PERFORMANCE OF U-Mo MONOLITHIC FUEL

    SciTech Connect (OSTI)

    M.K. Meyer; J. Gan; J.-F. Jue; D.D. Keiser; E. Perez; A. Robinson; D.M. Wachs; N. Woolstenhulme; G.L. Hofman; Y.-S. Kim

    2014-04-01T23:59:59.000Z

    High-performance research reactors require fuel that operates at high specific power to high fission density, but at relatively low temperatures. Research reactor fuels are designed for efficient heat rejection, and are composed of assemblies of thin-plates clad in aluminum alloy. The development of low-enriched fuels to replace high-enriched fuels for these reactors requires a substantially increased uranium density in the fuel to offset the decrease in enrichment. Very few fuel phases have been identified that have the required combination of very-high uranium density and stable fuel behavior at high burnup. UMo alloys represent the best known tradeoff in these properties. Testing of aluminum matrix U-Mo aluminum matrix dispersion fuel revealed a pattern of breakaway swelling behavior at intermediate burnup, related to the formation of a molybdenum stabilized high aluminum intermetallic phase that forms during irradiation. In the case of monolithic fuel, this issue was addressed by eliminating, as much as possible, the interfacial area between U-Mo and aluminum. Based on scoping irradiation test data, a fuel plate system composed of solid U-10Mo fuel meat, a zirconium diffusion barrier, and Al6061 cladding was selected for development. Developmental testing of this fuel system indicates that it meets core criteria for fuel qualification, including stable and predictable swelling behavior, mechanical integrity to high burnup, and geometric stability. In addition, the fuel exhibits robust behavior during power-cooling mismatch events under irradiation at high power.

  9. Single Phase Melt Processed Powellite (Ba,Ca) MoO{sub 4} For The Immobilization Of Mo-Rich Nuclear Waste

    SciTech Connect (OSTI)

    Brinkman, Kyle [Savannah River Site (SRS), Aiken, SC (United States); Marra, James [Savannah River Site (SRS), Aiken, SC (United States); Fox, Kevin [Savannah River Site (SRS), Aiken, SC (United States); Reppert, Jason [Savannah River Site (SRS), Aiken, SC (United States); Crum, Jarrod [Paci fic Northwest National Laboratory , Richland, WA (United States); Tang, Ming [Los Alamos National Laboratory , Los Alamos, NM (United States)

    2012-09-17T23:59:59.000Z

    Crystalline and glass composite materials are currently being investigated for the immobilization of combined High Level Waste (HLW) streams resulting from potential commercial fuel reprocessing scenarios. Several of these potential waste streams contain elevated levels of transition metal elements such as molybdenum (Mo). Molybdenum has limited solubility in typical silicate glasses used for nuclear waste immobilization. Under certain chemical and controlled cooling conditions, a powellite (Ba,Ca)MoO{sub 4} crystalline structure can be formed by reaction with alkaline earth elements. In this study, single phase BaMoO{sub 4} and CaMoO{sub 4} were formed from carbonate and oxide precursors demonstrating the viability of Mo incorporation into glass, crystalline or glass composite materials by a melt and crystallization process. X-ray diffraction, photoluminescence, and Raman spectroscopy indicated a long range ordered crystalline structure. In-situ electron irradiation studies indicated that both CaMoO{sub 4} and BaMoO{sub 4} powellite phases exhibit radiation stability up to 1000 years at anticipated doses with a crystalline to amorphous transition observed after 1 X 10{sup 13} Gy. Aqueous durability determined from product consistency tests (PCT) showed low normalized release rates for Ba, Ca, and Mo (<0.05 g/m{sup 2}).

  10. An APFIM and TEM study of Ni{sub 4}Mo precipitation in a commercial Ni-28% Mo-1.4% Fe-0.4% Cr wt. % alloy

    SciTech Connect (OSTI)

    Thomson, R.C.; Brown, N.; Bates, J.S. [Loughborough Univ. (United Kingdom). Inst. of Polymer Technology and Materials Engineering; Russell, K.F.; Miller, M.K. [Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.

    1998-02-01T23:59:59.000Z

    Ni-Mo alloys containing at least 26 wt.% Mo have a negligible corrosion rate in boiling 10% hydrochloric acid and are therefore used in corrosive environments. A series of commercial Ni-Mo alloys has been developed with subtle variations in chemical composition. These alloys usually contain {approximately} 28 wt.% Mo with additions of up to 5% Fe and Cr. A significant amount of research has been performed to understand the microstructure and properties of these alloys, although most of the effort has concentrated on the Ni-Mo binary system. In some alloys with low Fe and Cr contents, a severe embrittlement problem has been observed due to the formation of the Ni{sub 4}Mo (D1{sub a}-ordered) phase within the microstructure. This research focuses on a commercial alloy with nominal composition Ni-28% Mo-1.4% Fe-0.4% Cr-0.1% Mn-0.003 wt.% C. The material supplied was a heat treatment coupon which had been attached to a large vessel during fabrication. Assessment of the chemical analysis of the alloy suggested that detrimental phases could be present or might appear during subsequent repair work. Therefore, it was important to assess the microstructural condition of the vessel, and in particular the kinetics of precipitation of Ni{sub 4}Mo.

  11. High-performance MoS{sub 2} transistors with low-resistance molybdenum contacts

    SciTech Connect (OSTI)

    Kang, Jiahao; Liu, Wei; Banerjee, Kaustav, E-mail: kaustav@ece.ucsb.edu [Department of Electrical and Computer Engineering, University of California, Santa Barbara, California 93106 (United States)

    2014-03-03T23:59:59.000Z

    In this Letter, molybdenum (Mo) is introduced and evaluated as an alternative contact metal to atomically-thin molybdenum disulphide (MoS{sub 2}), and high-performance field-effect transistors are experimentally demonstrated. In order to understand the physical nature of the interface and highlight the role of the various factors contributing to the Mo-MoS{sub 2} contacts, density functional theory (DFT) simulations are employed, which reveal that Mo can form high quality contact interface with monolayer MoS{sub 2} with zero tunnel barrier and zero Schottky barrier under source/drain contact, as well as an ultra-low Schottky barrier (0.1?eV) at source/drain-channel junction due to strong Fermi level pinning. In agreement with the DFT simulations, high mobility, high ON-current, and low contact resistance are experimentally demonstrated on both monolayer and multilayer MoS{sub 2} transistors using Mo contacts. The results obtained not only reveal the advantages of using Mo as a contact metal for MoS{sub 2} but also highlight the fact that the properties of contacts with 2-dimensional materials cannot be intuitively predicted by solely considering work function values and Schottky theory.

  12. version:13may14a The USA & the Global Oil System

    E-Print Network [OSTI]

    O'Donnell, Tom

    ....................................................................................... 4 1.5 Fracking: USA oil & gas revolution

  13. Evaluation of Contraceptive Properties of Cilostazol (A Phosphodiesterase 3A Inhibitor) in Mice

    E-Print Network [OSTI]

    Taiyeb-Ridha, Ahmed 1979-

    2012-12-04T23:59:59.000Z

    Max? FHM, liquid, without phenol red was purchased from Millipore (Billerica, MA, USA). Pregnant mare serum gonadotropin (PMSG), hyaluronidase from bovine testes, and dimethyl sulfoxide (DMSO) were all purchased from Sigma Chemical Co. (St. Louis, MO... billion on October 31st, 2011, and is believed to project to 10.1 or 15.8 billion in 2100 when medium or high projection variants are referenced, respectively (United Nations Population Division 2002 and 2011). This intense population growth threatens...

  14. Simple Molybdenum(IV) Olefin Complexes of the Type Mo(NR)(X)(Y)(olefin)

    E-Print Network [OSTI]

    Marinescu, Smaranda C.

    Exposure of heptane solutions of Mo(NAr)(CHCMe2Ph)(Me2Pyr)(OAr) (1a; Ar = 2,6-diisopropylphenyl), Mo(NAr)(CHCMe3)(Me2Pyr)[OCMe(CF3)2] (1b), and Mo(NAr)(CHCMe2Ph)(Me2Pyr)(OSiPh3) (1c) to one atmosphere of ethylene for 12 h ...

  15. Experimental activities supporting commercial U.S. accelerator production of 99-Mo

    SciTech Connect (OSTI)

    Dale, Gregory E [Los Alamos National Laboratory; Chemerisov, Sergey D [ANL; Vandegrift, George F [ANL

    2010-01-01T23:59:59.000Z

    {sup 99m}Tc, the daughter product of {sup 99}Mo, is the most commonly used radioisotope for nuclear medicine in the U.S. Experiments are being performed at Los Alamos National Laboratory and Argonne National Laboratory to demonstrate production of {sup 99}Mo using accelerators. The {sup 100}Mo({gamma},n){sup 99}Mo reaction in an enriched {sup 100}Mo target is currently under investigation. Three scaled low-power production experiments using a 20-MeV electron linac at Argonne have been performed to date. Two of these experiments used natural Mo targets and produced a total of 613 {mu}C of {sup 99}Mo. The third experiment used an enriched {sup 100}Mo target and produced 10.5 mCi of {sup 99}Mo. Following irradiation the targets were dissolved and the low specific activity solution was processed through an ARSII generator from NorthStar Medical Radioisotopes. Yields of {sup 99m}Tc >95% have been observed.

  16. Conceptual design of a new homogeneous reactor for medical radioisotope Mo-99/Tc-99m production

    SciTech Connect (OSTI)

    Liem, Peng Hong [Nippon Advanced Information Service (NAIS Co., Inc.) Scientific Computational Division, 416 Muramatsu, Tokaimura, Ibaraki (Japan); Tran, Hoai Nam [Chalmers University of Technology, Dept. of Applied Physics, Div. of Nuclear Engineering, SE-412 96 Gothenburg (Sweden); Sembiring, Tagor Malem [National Nuclear Energy Agency (BATAN), Center for Reactor Technology and Nuclear Safety, Kawasan Puspiptek, Serpong, Tangerang Selatan, Banten (Indonesia); Arbie, Bakri [PT MOTAB Technology, Kedoya Elok Plaza Blok DA 12, Jl. Panjang, Kebun Jeruk, Jakarta Barat (Indonesia)

    2014-09-30T23:59:59.000Z

    To partly solve the global and regional shortages of Mo-99 supply, a conceptual design of a nitrate-fuel-solution based homogeneous reactor dedicated for Mo-99/Tc-99m medical radioisotope production is proposed. The modified LEU Cintichem process for Mo-99 extraction which has been licensed and demonstrated commercially for decades by BATAN is taken into account as a key design consideration. The design characteristics and main parameters are identified and the advantageous aspects are shown by comparing with the BATAN's existing Mo-99 supply chain which uses a heterogeneous reactor (RSG GAS multipurpose reactor)

  17. Greenfield Alternative Study LEU-Mo Fuel Fabrication Facility

    SciTech Connect (OSTI)

    Washington Division of URS

    2008-07-01T23:59:59.000Z

    This report provides the initial “first look” of the design of the Greenfield Alternative of the Fuel Fabrication Capability (FFC); a facility to be built at a Greenfield DOE National Laboratory site. The FFC is designed to fabricate LEU-Mo monolithic fuel for the 5 US High Performance Research Reactors (HPRRs). This report provides a pre-conceptual design of the site, facility, process and equipment systems of the FFC; along with a preliminary hazards evaluation, risk assessment as well as the ROM cost and schedule estimate.

  18. Phase transitions in the adsorption system Li/Mo(112)

    E-Print Network [OSTI]

    Fedorus, A.; Kolthoff, D.; Koval, V.; Lyuksyutov, Igor F.; Naumovets, AG; Pfnur, H.

    2000-01-01T23:59:59.000Z

    limit can be quasi-one-dimensional. Such model systems are formed upon submonolayer adsorption on surfaces with strongly an- PRB 620163-1829/2000/62~4!/2852~10!/$15.00 n system Li?Mo?112? ,1,3 A. G. Naumovets,1 and H. Pfnu?r2,* , Prospect Nauki 46... W/Re thermocouple and was con- trolled by a computerized feedback circuit with a resolution of 0.01 K. The source of lithium was constructed and outgassed as PRB 62 PHASE TRANSITIONS IN TH described in Ref. 6. The LEED patterns have been taken...

  19. Recovery of Mo/Si multilayer coated optical substrates

    DOE Patents [OSTI]

    Baker, Sherry L. (Pleasanton, CA); Vernon, Stephen P. (Pleasanton, CA); Stearns, Daniel G. (Los Altos, CA)

    1997-12-16T23:59:59.000Z

    Mo/Si multilayers are removed from superpolished ZERODUR and fused silica substrates with a dry etching process that, under suitable processing conditions, produces negligible change in either the substrate surface figure or surface roughness. The two step dry etching process removes SiO.sub.2 overlayer with a fluroine-containing gas and then moves molybdenum and silicon multilayers with a chlorine-containing gas. Full recovery of the initial normal incidence extreme ultra-violet (EUV) reflectance response has been demonstrated on reprocessed substrates.

  20. Recovery of Mo/Si multilayer coated optical substrates

    DOE Patents [OSTI]

    Baker, S.L.; Vernon, S.P.; Stearns, D.G.

    1997-12-16T23:59:59.000Z

    Mo/Si multilayers are removed from superpolished ZERODUR and fused silica substrates with a dry etching process that, under suitable processing conditions, produces negligible change in either the substrate surface figure or surface roughness. The two step dry etching process removes SiO{sub 2} overlayer with a fluroine-containing gas and then moves molybdenum and silicon multilayers with a chlorine-containing gas. Full recovery of the initial normal incidence extreme ultra-violet (EUV) reflectance response has been demonstrated on reprocessed substrates. 5 figs.

  1. DOE - Office of Legacy Management -- Petrolite Corp - MO 08

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling Corp - CTOregonPetrolite Corp - MO 08 FUSRAP

  2. Geochemical information for sites contaminated with low-level radioactive wastes: II. St. Louis Airport Storage Site

    SciTech Connect (OSTI)

    Seeley, F.G.; Kelmers, A.D.

    1985-01-01T23:59:59.000Z

    The St. Louis Airport Storage Site (SLASS) became radioactively contaminated as a result of wastes that were being stored from operations to recover uranium from pitchblende ores in the 1940s and 1950s. The US Department of Energy is considering various remedial action options for the SLASS under the Formerly Utilized Site Remedial Action Program (FUSRAP). This report describes the results of geochemical investigations, carried out to support the FUSRAP activities and to aid in quantifying various remedial action options. Soil and groundwater samples from the site were characterized, and sorption ratios for uranium and radium and apparent concentration limit values for uranium were measured in soil/groundwater systems by batch contact methodology. The uranium and radium concentrations in soil samples were significantly above background near the old contaminated surface horizon (now at the 0.3/sup -/ to 0.9/sup -/m depth); the maximum values were 1566 ..mu..g/g and 101 pCi/g, respectively. Below about the 6/sup -/m depth, the concentrations appeared to be typical of those naturally present in soils of this area (3.8 +- 1.2 ..mu..g/g and 3.1 +- 0.6 pCi/g). Uranium sorption ratios showed stratigraphic trends but were generally moderate to high (100 to 1000 L/kg). The sorption isotherm suggested an apparent uranium concentration limit of about 200 mg/L. This relatively high solubility can probably be correlated with the carbonate content of the soil/groundwater systems. The lower sorption ratio values obtained from the sorption isotherm may have resulted from changes in the experimental procedure or the groundwater used. The SLASS appears to exhibit generally favorable behavior for the retardation of uranium solubilized from waste in the site. Parametric tests were conducted to estimate the sensitivity of uranium sorption and solubility to the pH and carbonate content of the system.

  3. Identification of single nucleotides in MoS2 nanopores

    E-Print Network [OSTI]

    Jiandong Feng; Ke Liu; Roman D. Bulushev; Sergey Khlybov; Dumitru Dumcenco; Andras Kis; Aleksandra Radenovic

    2015-05-07T23:59:59.000Z

    Ultrathin membranes have drawn much attention due to their unprecedented spatial resolution for DNA nanopore sequencing. However, the high translocation velocity (3000-50000 nt/ms) of DNA molecules moving across such membranes limits their usability. To this end, we have introduced a viscosity gradient system based on room-temperature ionic liquids (RTILs) to control the dynamics of DNA translocation through a nanometer-size pore fabricated in an atomically thin MoS2 membrane. This allows us for the first time to statistically identify all four types of nucleotides with solid state nanopores. Nucleotides are identified according to the current signatures recorded during their transient residence in the narrow orifice of the atomically thin MoS2 nanopore. In this novel architecture that exploits high viscosity of RTIL, we demonstrate single-nucleotide translocation velocity that is an optimal speed (1-50 nt/ms) for DNA sequencing, while keeping the signal to noise ratio (SNR) higher than 10. Our findings pave the way for future low-cost and rapid DNA sequencing using solid-state nanopores.

  4. Characterization of U-Mo Foils for AFIP-7

    SciTech Connect (OSTI)

    Edwards, Danny J.; Ermi, Ruby M.; Schemer-Kohrn, Alan L.; Overman, Nicole R.; Henager, Charles H.; Burkes, Douglas; Senor, David J.

    2012-11-07T23:59:59.000Z

    Twelve AFIP in-process foil samples, fabricated by either Y-12 or LANL, were shipped from LANL to PNNL for potential characterization using optical and scanning electron microscopy techniques. Of these twelve, nine different conditions were examined to one degree or another using both techniques. For this report a complete description of the results are provided for one archive foil from each source of material, and one unirradiated piece of a foil of each source that was irradiated in the Advanced Test Reactor. Additional data from two other LANL conditions are summarized in very brief form in an appendix. The characterization revealed that all four characterized conditions contained a cold worked microstructure to different degrees. The Y-12 foils exhibited a higher degree of cold working compared to the LANL foils, as evidenced by the highly elongated and obscure U-Mo grain structure present in each foil. The longitudinal orientations for both of the Y-12 foils possesses a highly laminar appearance with such a distorted grain structure that it was very difficult to even offer a range of grain sizes. The U-Mo grain structure of the LANL foils, by comparison, consisted of a more easily discernible grain structure with a mix of equiaxed and elongated grains. Both materials have an inhomogenous grain structure in that all of the characterized foils possess abnormally coarse grains.

  5. Supercapacitor behavior of ?-MnMoO{sub 4} nanorods on different electrolytes

    SciTech Connect (OSTI)

    Purushothaman, K.K., E-mail: purushoth_gri@yahoo.co.in [Department of Physics, TRP Engineering College (SRM Group), Irungalur, Trichy, Tamilnadu (India); Cuba, M. [Department of Physics, Gandhigram Rural Institute – Deemed University, Gandhigram, Tamilnadu (India)] [Department of Physics, Gandhigram Rural Institute – Deemed University, Gandhigram, Tamilnadu (India); Muralidharan, G., E-mail: muralg@rediffmail.com [Department of Physics, Gandhigram Rural Institute – Deemed University, Gandhigram, Tamilnadu (India)

    2012-11-15T23:59:59.000Z

    Graphical abstract: SEM image of ?-MnMoO{sub 4} nanorods on FTO substrate. Highlights: ? Synthesis of ?-MnMoO{sub 4} nanorods by spin coating method. ? First study on the effect of electrolyte on the pseudocapacitance behavior. ? ?-MnMoO{sub 4} nanorods exhibit maximum specific capacitance of 998 F/g. ? At higher scan rates p-TSA electrolyte exhibits superior capacitive behavior. -- Abstract: ?-MnMoO{sub 4} nanorods were prepared on conducting glass substrate via sol–gel spin coating method at the optimum doping level. The effect of electrolyte on the pseudocapacitance behavior of the ?-MnMoO{sub 4} nanorods was studied using para toluene sulfonic acid (p-TSA), sulfuric acid (H{sub 2}SO{sub 4}) and hydrochloric acid (HCl) as electrolytes. X-ray diffraction analysis reveals the formation of ?-MnMoO{sub 4} in monoclinic phase. FTIR spectra contain vibrational bands associated with Mo=O, M–O and Mo–O–Mo bonds. SEM image reveals the formation of nanorods. Supercapacitor behavior has been studied using cyclic voltammetry (CV) analysis. ?-MnMoO{sub 4} nanorods exhibit maximum specific capacitance of 998 F/g at a scan rate of 5 mV/s in H{sub 2}SO{sub 4} electrolyte while a specific capacitance of 784 F/g and 530 F/g have been obtained using p-TSA and HCl electrolytes, respectively. At higher scan rates p-TSA electrolyte exhibits superior capacitive behavior than H{sub 2}SO{sub 4}.

  6. Absolute Energy USA | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1AMEE Jump to: navigation, search40Georgia:SL JumpAREGAbout(USA)

  7. Norvento USA LLC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRoseConcerns Jumpsource History ViewTexas: EnergyWind PowerUSA LLC Jump

  8. CleanFUEL USA | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovationin UrbanCity ofCityClean Economy Network JumpCleanCleanFUEL USA

  9. Energy Pro USA | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazel Crest,EnergySerranopolis Jump to:EconCompaniesMainEnergy Pro USA Place:

  10. AREA USA LLC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDITCaliforniaWeifangwiki Home Jweers'sAIRMaster+APFED-GoodAPIsAREA USA

  11. Reduced Pressure Electron Beam Welding Evaluation Activities on a Ni-Cr-Mo Alloy for Nuclear Waste Packages

    SciTech Connect (OSTI)

    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

    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.

  12. Fe3O4-LiMo3Se3 Nanoparticle Clusters as Superparamagnetic Nanocompasses

    E-Print Network [OSTI]

    Osterloh, Frank

    -iodopropionic acid treated LiMo3Se3 nanowire bundles with oleic acid-stabilized Fe3O4 nanoparticles of 2.8, 5Fe3O4-LiMo3Se3 Nanoparticle Clusters as Superparamagnetic Nanocompasses Frank E. Osterloh,*, Hiroki A scaleable chemical approach to functional nanoscale analogues of the magnetic compasses in magnetotactic

  13. Hole Selective MoOx Contact for Silicon Solar Cells Corsin Battaglia,,,

    E-Print Network [OSTI]

    Javey, Ali

    Hole Selective MoOx Contact for Silicon Solar Cells Corsin Battaglia,,, Xingtian Yin,,,§, Maxwell Laboratory, Xi'an Jiaotong University, Xi'an, 710049 Shaanxi, People's Republic of China Joint Center/silicon solar cell with a power conversion efficiency of 14.3%. While MoOx is commonly considered

  14. MoIAC Pre-Audit Form Ways to submit this form

    E-Print Network [OSTI]

    Noble, James S.

    information: #12;MoIAC Pre-Audit Form Major Energy Consuming Equipment: Please provide informationMoIAC Pre-Audit Form Ways to submit this form: 1. Fill up the form and fax it to 573-882-2693 Attn: Dr. Bin Wu 2. Print and return this form by mail to: Dr. Bin Wu University of Missouri

  15. Adsorption studies of Mo and V onto ferrihydrite *, L. G. BENNING

    E-Print Network [OSTI]

    Benning, Liane G.

    Adsorption studies of Mo and V onto ferrihydrite L. BRINZA 1, *, L. G. BENNING 1 AND P. J. STATHAM-sorbate experiments, 100% adsorption was observed at pH values below 6 and 8, respectively. Above the point of zero charge (PZC = 7.97) of FHY, the adsorption efficiency for Mo dropped dramatically (20% at pH 8) while V

  16. Stability of Graphene doping with MoO_3 and I_2

    E-Print Network [OSTI]

    D’Arsié, Lorenzo; Esconjauregui, Santiago; Weatherup, Robert; Guo, Yuzheng; Bhardwaj, Sunil; Centeno, Alba; Zurutuza, Amaia; Cepek, Cinzia; Robertson, John

    2014-09-08T23:59:59.000Z

    We dope graphene by evaporation of MoO_3 or by solution-deposition of I_2 and assess the doping stability for its use as transparent electrodes. Electrical measurements show that both dopants increase the graphene sheet conductivity and find that Mo...

  17. Student Financial Aid 11 Jesse Hall University of Missouri Columbia Columbia, MO 65211-1600

    E-Print Network [OSTI]

    Taylor, Jerry

    Student Financial Aid 11 Jesse Hall University of Missouri ­ Columbia Columbia, MO 65211-1600 PHONE;Student Financial Aid 11 Jesse Hall University of Missouri ­ Columbia Columbia, MO 65211-1600 PHONE (573 ________________________________________________________________________________________________________________________ Name of Host Institution (College or University you will be attending or taking additional classes

  18. Ligand Conjugation of Chemically Exfoliated MoS2 Stanley S. Chou,+

    E-Print Network [OSTI]

    Huang, Jiaxing

    Ligand Conjugation of Chemically Exfoliated MoS2 Stanley S. Chou,+ Mrinmoy De,+ Jaemyung Kim,+ Segi and chemical properties. Here, we demonstrate ligand conjugation of chemically exfoliated MoS2 using thiol-nitrilotriacetic acid chelation.13 However, colloidal sur- face modification of water dispersible, chemically exfoliated

  19. Characterization of Single-Walled Carbon Nanotubes (SWNTs) Produced by CO Disproportionation on Co-Mo

    E-Print Network [OSTI]

    Resasco, Daniel

    Characterization of Single-Walled Carbon Nanotubes (SWNTs) Produced by CO Disproportionation on Co Received November 15, 2001. Revised Manuscript Received February 6, 2002 The disproportionation of CO over Co-Mo/SiO2 catalysts with low Co/Mo ratios results in a high selectivity to single-walled carbon

  20. Corrosion Behavior of Solution-Annealed CoCrMo Medical Implant

    E-Print Network [OSTI]

    Shull, Kenneth R.

    ! ! ! Corrosion Behavior of Solution- Annealed CoCrMo Medical Implant Alloys Pooja Panigrahi University June 6, 2011 #12;! ! ""! Corrosion Behavior of Solution-Annealed CoCrMo Medical Implant Alloys and Applied Sciences Northwestern University June 6, 2011 Abstract Corrosion behavior of solution annealed

  1. Double beta decays and solar neutrinos with 100 MOON(Mo Observatory Of Neutrinos)

    E-Print Network [OSTI]

    Washington at Seattle, University of

    nuclear laboratory for spectroscopic studies of neutrinos Neutrinos are key particles for new frontiers) are sensitive and realistic experiments for studying the Majorana nature of the neutrino and the absolute massDouble beta decays and solar neutrinos with 100 Mo ­MOON(Mo Observatory Of Neutrinos)­ May 24, 2005

  2. Posting type Advisory Subject Shifts in Mo-anode XRF element calibration factors

    E-Print Network [OSTI]

    Fischer, Emily V.

    Posting type Advisory Subject Shifts in Mo-anode XRF element calibration factors Module/Species A@crocker.ucdavis.edu Supporting information A molybdenum-anode XRF instrument is used to analyze the heavier elements (Ni, Cu, Zn with lighter deposits were acquired and used in the Mo-anode XRF system. The new calibration foils resulted

  3. Panagiota Daskalopoulos - Columbia University, U.S.A. Worn ...

    E-Print Network [OSTI]

    Panagiota Daskalopoulos - Columbia University, U.S.A.. Worn Stones with Flat Sides - All Time Regularity of the Interface. We study the all time regularity of the

  4. Euro Chef USA: Proposed Penalty (2014-CE-23004)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Euro Chef USA Inc. failed to certify cooking products as compliant with the applicable energy conservation standards.

  5. anaerobic digestion usa: Topics by E-print Network

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

    Mathematical Journal Volume 21(2011), Number 1, 27 Institute for Cyber Security San Antonio, Texas 78249, USA shylmath@hotmail.com Communicated by the Editors 70 FUTURE...

  6. air station usa: Topics by E-print Network

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

    in the USA Biology and Medicine Websites Summary: Parasitoids Air pollutants Heavy metals Metalloids INTRODUCTION Insect parasitoids (insects living parasitoids in...

  7. augusta maine usa: Topics by E-print Network

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

    wetland in Augusta, Georgia, U.S.A. Geosciences Websites Summary: constructed treatment wetland in Augusta, Georgia were used to quantify the size, distribution,...

  8. arbor michigan usa: Topics by E-print Network

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

    linguistic Lewis, Richard 2 Proceedings of the Seventh International Symposium on Cavitation (CAV2009) August 16-20, 2009, Ann Arbor, Michigan, USA Engineering Websites Summary:...

  9. Photo-oxidation method using MoS2 nanocluster materials

    DOE Patents [OSTI]

    Wilcoxon, Jess P. (Albuquerque, NM)

    2001-01-01T23:59:59.000Z

    A method of photo-oxidizing a hydrocarbon compound is provided by dispersing MoS.sub.2 nanoclusters in a solvent containing a hydrocarbon compound contaminant to form a stable solution mixture and irradiating the mixture to photo-oxide the hydrocarbon compound. Hydrocarbon compounds of interest include aromatic hydrocarbon and chlorinated hydrocarbons. MoS.sub.2 nanoclusters with an average diameter less than approximately 10 nanometers are shown to be effective in decomposing potentially toxic aromatic and chlorinated hydrocarbons, such as phenol, pentachlorophenol, chlorinated biphenols, and chloroform, into relatively non-toxic compounds. The irradiation can occur by exposing the MoS.sub.2 nanoclusters and hydrocarbon compound mixture with visible light. The MoS.sub.2 nanoclusters can be introduced to the toxic hydrocarbons as either a MoS.sub.2 solution or deposited on a support material.

  10. Phase transformation of ZnMoO{sub 4} by localized thermal spike

    SciTech Connect (OSTI)

    Agarwal, D. C.; Avasthi, D. K.; Kabiraj, D. [Inter-University Accelerator Center, Aruna Asaf Ali Marg, New Delhi 110067 (India); Varma, S. [Institute of Physics, Sachivalaya Marg, Bhubaneswar 751005 (India); Kremer, Felipe; Ridgway, M. C. [Australian National University, Canberra ACT 0200 (Australia)

    2014-04-28T23:59:59.000Z

    We show that ZnMoO{sub 4} remains in stable phase under thermal annealing up to 1000?°C, whereas it decomposes to ZnO and MoO{sub 3} under transient thermal spike induced by 100?MeV Ag irradiation. The transformation is evidenced by X-ray diffraction (XRD), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). Thin films of ZnMoO{sub 4} were synthesized by thermal evaporation and subsequent annealing in oxygen ambient at 600?°C for 4?h. XRD results show that as the irradiation fluence increases, the peak related to ZnMoO{sub 4} decreases gradually and eventually disappear, whereas peaks related to ZnO grow steadily up to fluence of 3?×?10{sup 12} ions/cm{sup 2} and thereafter remain stable till highest fluence. This indicates that polycrystalline ZnMoO{sub 4} film has transformed to polycrystalline ZnO thin film. The Raman lines related to ZnMoO{sub 4} are observed to have disappeared with increasing irradiation fluence. XPS results show modification in bonding and depletion of Mo from near surface region after the ion irradiation. Cross-sectional transmission electron microscopy result shows the formation of ion track of diameter 12–16?nm. These results demonstrate that ion beam methods provide the means to control phase splitting of ZnMoO{sub 4} to ZnO and MoO{sub 3} within nanometric dimension along the ion track. The observation of phase splitting and Mo loss are explained in the framework of ion beam induced thermal spike formalism.

  11. Water and Methanol Adsorption on MgO(100)/Mo(100) Studied by Electron Spectroscopies and Thermal Programmed Desorption

    E-Print Network [OSTI]

    Goodman, Wayne

    Water and Methanol Adsorption on MgO(100)/Mo(100) Studied by Electron Spectroscopies and Thermal, 2000 The adsorption of methanol (CH3OH) and water (D2O) on the MgO(100)/Mo(100) surface at 100 K has covered MgO(100)/Mo(100) surface. On the other hand, the formation of a methanol multilayer desorption

  12. Influence of Co/Mo Ratio on Synthesis of Single-Walled Carbon Nanotubes from Carbon Monoxide

    E-Print Network [OSTI]

    Maruyama, Shigeo

    Influence of Co/Mo Ratio on Synthesis of Single-Walled Carbon Nanotubes from Carbon Monoxide, Bunkyo-ku, Tokyo 113-8656 Co and Mo are often used as catalysts for the catalytic chemical vapor in synthesizing random, vertical and parallel aligned SWNTs on Co and Mo dip-coated quartz substrates from carbon

  13. Childhood Agricultural Injury Prevention in the U.S.A.

    E-Print Network [OSTI]

    #12;Childhood Agricultural Injury Prevention in the U.S.A. Presentation for the Swedish University of Agricultural Sciences Barbara Lee, PhD National Farm Medicine Center National Children's Center for Rural and Agricultural Health and Safety Marshfield, WI USA October 2011 #12;#12;#12;Outline · Background · Child Ag

  14. Investigation of the optical properties of MoS{sub 2} thin films using spectroscopic ellipsometry

    SciTech Connect (OSTI)

    Yim, Chanyoung; O'Brien, Maria; Winters, Sinéad [School of Chemistry, Trinity College Dublin, Dublin 2 (Ireland); Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2 (Ireland); McEvoy, Niall [Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2 (Ireland); Mirza, Inam; Lunney, James G. [Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2 (Ireland); School of Physics, Trinity College Dublin, Dublin 2 (Ireland); Duesberg, Georg S., E-mail: duesberg@tcd.ie [School of Chemistry, Trinity College Dublin, Dublin 2 (Ireland); Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2 (Ireland); Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, Dublin 2 (Ireland)

    2014-03-10T23:59:59.000Z

    Spectroscopic ellipsometry (SE) characterization of layered transition metal dichalcogenide (TMD) thin films grown by vapor phase sulfurization is reported. By developing an optical dispersion model, the extinction coefficient and refractive index, as well as the thickness of molybdenum disulfide (MoS{sub 2}) films, were extracted. In addition, the optical band gap was obtained from SE and showed a clear dependence on the MoS{sub 2} film thickness, with thinner films having a larger band gap energy. These results are consistent with theory and observations made on MoS{sub 2} flakes prepared by exfoliation, showing the viability of vapor phase derived TMDs for optical applications.

  15. High damage-resistant Mo mirror for high-power TEA CO/sub 2/ laser systems

    SciTech Connect (OSTI)

    Ichikawa, Y.; Yoshida, K.; Tsunawaki, Y.; Yamanaka, M.; Yamanaka, T.; Yamanaka, C.; Okamoto, H.; Matsusue, N.; Kitajima, K.

    1987-09-01T23:59:59.000Z

    A high-purity molybdenum (Mo) mirror was developed by an electron-beam melting method (e.b.m. Mo mirror). For high-power TEA CO/sub 2/ laser, the e.b.m. Mo mirror has two to four times higher surface damage threshold than that of an Au-coated glass mirror and three times longer lifetime than that of a powder metallurgy Mo mirror (p.m. Mo mirror) when laser energy density lower than 60 J/cm/sup 2/ was irradiated with a 0.5-pps repetition rate. It was found that the difference between the e.b.m. Mo mirror and the p.m. Mo mirror at the laser-damage threshold was due to the five surface without voids and the small amount of impurities.

  16. Louis de Branges: Publications

    E-Print Network [OSTI]

    Topics in operator theory: Ernst D. Hellinger memorial volume, volume 48 of Operator Theory: ... 1, 2 (Berkeley, Calif., 1986), pages 25-42, Providence, RI, 1987.

  17. Aboveground test of an advanced Li$_2$MoO$_4$ scintillating bolometer to search for neutrinoless double beta decay of $^{100}$Mo

    E-Print Network [OSTI]

    T. B. Bekker; N. Coron; F. A. Danevich; V. Ya. Degoda; A. Giuliani; V. D. Grigorieva; N. V. Ivannikova; M. Mancuso; P. de Marcillac; I. M. Moroz; C. Nones; E. Olivieri; G. Pessina; D. V. Poda; V. N. Shlegel; V. I. Tretyak; M. Velazquez

    2014-12-17T23:59:59.000Z

    Large lithium molybdate (Li$_2$MoO$_4$) crystal boules were produced by using the low thermal gradient Czochralski growth technique from deeply purified molybdenum. A small sample from one of the boules was preliminary characterized in terms of X-ray-induced and thermally-excited luminescence. A large cylindrical crystalline element (with a size of $\\oslash 40\\times40$ mm) was used to fabricate a scintillating bolometer, which was operated aboveground at $\\sim 15$ mK by using a pulse-tube cryostat housing a high-power dilution refrigerator. The excellent detector performance in terms of energy resolution and $\\alpha$ background suppression along with preliminary positive indications on the radiopurity of this material show the potentiality of Li$_2$MoO$_4$ scintillating bolometers for low-counting experiment to search for neutrinoless double beta decay of $^{100}$Mo.

  18. Aboveground test of an advanced Li$_2$MoO$_4$ scintillating bolometer to search for neutrinoless double beta decay of $^{100}$Mo

    E-Print Network [OSTI]

    Bekker, T B; Danevich, F A; Degoda, V Ya; Giuliani, A; Grigorieva, V D; Ivannikova, N V; Mancuso, M; de Marcillac, P; Moroz, I M; Nones, C; Olivieri, E; Pessina, G; Poda, D V; Shlegel, V N; Tretyak, V I; Velazquez, M

    2014-01-01T23:59:59.000Z

    Large lithium molybdate (Li$_2$MoO$_4$) crystal boules were produced by using the low thermal gradient Czochralski growth technique from deeply purified molybdenum. A small sample from one of the boules was preliminary characterized in terms of X-ray-induced and thermally-excited luminescence. A large cylindrical crystalline element (with a size of $\\oslash 40\\times40$ mm) was used to fabricate a scintillating bolometer, which was operated aboveground at $\\sim 15$ mK by using a pulse-tube cryostat housing a high-power dilution refrigerator. The excellent detector performance in terms of energy resolution and $\\alpha$ background suppression along with preliminary positive indications on the radiopurity of this material show the potentiality of Li$_2$MoO$_4$ scintillating bolometers for low-counting experiment to search for neutrinoless double beta decay of $^{100}$Mo.

  19. Atomistic simulation of the electronic states of adatoms in monolayer MoS{sub 2}

    SciTech Connect (OSTI)

    Chang, Jiwon; Larentis, Stefano; Tutuc, Emanuel; Register, Leonard F.; Banerjee, Sanjay K. [Microelectronics Research Center, The University of Texas at Austin, Austin, Texas 78758 (United States)

    2014-04-07T23:59:59.000Z

    Using an ab initio density functional theory based electronic structure method, we study the effects of adatoms on the electronic properties of monolayer transition metal dichalcogenide Molybdenum-disulfide (MoS{sub 2}). We consider the 1st (Li, Na, K) and 7th (F, Cl, Br) column atoms and metals (Sc, Ti, Ta, Mo, Pd, Pt, Ag, Au). Three high symmetry sites for the adatom on the surface of monolayer MoS{sub 2} are examined as starting points to search for the most energetically stable configuration for each adatom-monolayer MoS{sub 2} system, as well as the type of associated bonding. For the most stable adatom positions, we characterize the emergence of adatom-induced electronic states including any dopant states.

  20. Monolayers of MoS{sub 2} as an oxidation protective nanocoating material

    SciTech Connect (OSTI)

    Sen, H. Sener [UNAM-National Nanotechnology Research Center, Bilkent University, Ankara 06800 (Turkey); Sahin, H.; Peeters, F. M. [Department of Physics, University of Antwerp, 2610 Antwerp (Belgium); Durgun, E., E-mail: durgun@unam.bilkent.edu.tr [UNAM-National Nanotechnology Research Center, Bilkent University, Ankara 06800 (Turkey); Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800 (Turkey)

    2014-08-28T23:59:59.000Z

    First-principle calculations are employed to investigate the interaction of oxygen with ideal and defective MoS{sub 2} monolayers. Our calculations show that while oxygen atoms are strongly bound on top of sulfur atoms, the oxygen molecule only weakly interacts with the surface. The penetration of oxygen atoms and molecules through a defect-free MoS{sub 2} monolayer is prevented by a very high diffusion barrier indicating that MoS{sub 2} can serve as a protective layer for oxidation. The analysis is extended to WS{sub 2} and similar coating characteristics are obtained. Our calculations indicate that ideal and continuous MoS{sub 2} and WS{sub 2} monolayers can improve the oxidation and corrosion-resistance of the covered surface and can be considered as an efficient nanocoating material.

  1. Substrate interactions with suspended and supported monolayer MoS?: Angle-resolved photoemission spectroscopy

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

    Jin, Wencan; Sadowski, Jerzy T.; Yeh, Po-Chun; Zaki, Nader; Zhang, Datong; Liou, Jonathan T.; Dadap, Jerry I.; Herman, Irving P.; Osgood, Jr., Richard M.; Sutter, Peter; et al

    2015-03-01T23:59:59.000Z

    We report the directly measured electronic structure of exfoliated monolayer molybdenum disulfide (MoS?) using micrometer-scale angle-resolved photoemission spectroscopy. Measurements of both suspended and supported monolayer MoS? elucidate the effects of interaction with a substrate. A suggested relaxation of the in-plane lattice constant is found for both suspended and supported monolayer MoS? crystals. For suspended MoS?, a careful investigation of the measured uppermost valence band gives an effective mass at ? and ? of 2.00m? and 0.43m?, respectively. We also measure an increase in the band linewidth from the midpoint of ?? to the vicinity of ? and briefly discuss itsmore »possible origin.« less

  2. Substrate interactions with suspended and supported monolayer MoS?: Angle-resolved photoemission spectroscopy

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

    Jin, Wencan [Columbia Univ., New York, NY (United States); Sadowski, Jerzy T. [Brookhaven National Lab. (BNL), Upton, NY (United States); Yeh, Po-Chun [Columbia Univ., New York, NY (United States); Zaki, Nader [Columbia Univ., New York, NY (United States); Zhang, Datong [Columbia Univ., New York, NY (United States); Liou, Jonathan T. [Columbia Univ., New York, NY (United States); Dadap, Jerry I. [Columbia Univ., New York, NY (United States); Herman, Irving P. [Columbia Univ., New York, NY (United States); Osgood, Jr., Richard M. [Columbia Univ., New York, NY (United States); Sutter, Peter [Brookhaven National Lab. (BNL), Upton, NY (United States); Barinov, Alexey [Elettra Sincrotrone Trieste, Basovizza, Trieste (Italy); Yablonskikh, Mikhail [Elettra Sincrotrone Trieste, Basovizza, Trieste (Italy)

    2015-03-01T23:59:59.000Z

    We report the directly measured electronic structure of exfoliated monolayer molybdenum disulfide (MoS?) using micrometer-scale angle-resolved photoemission spectroscopy. Measurements of both suspended and supported monolayer MoS? elucidate the effects of interaction with a substrate. A suggested relaxation of the in-plane lattice constant is found for both suspended and supported monolayer MoS? crystals. For suspended MoS?, a careful investigation of the measured uppermost valence band gives an effective mass at ? and ? of 2.00m? and 0.43m?, respectively. We also measure an increase in the band linewidth from the midpoint of ?? to the vicinity of ? and briefly discuss its possible origin.

  3. Intrinsic Electronic Transport Properties of High-Quality Monolayer and Bilayer MoS[subscript 2

    E-Print Network [OSTI]

    Baugher, Britton W. H.

    We report electronic transport measurements of devices based on monolayers and bilayers of the transition-metal dichalcogenide MoS[subscript 2]. Through a combination of in situ vacuum annealing and electrostatic gating ...

  4. MO"BIUS ENERGIES FOR KNOTS AND LINKS, SURFACES AND SUBMANIFOLDS

    E-Print Network [OSTI]

    Kusner, Robert B.

    MO"BIUS ENERGIES FOR KNOTS AND LINKS, SURFACES AND SUBMANIFOLDS energies, especially those which are invariant under M"obius transforma- tions of space. We describe computer experiments with such energies, and discuss ways of extending these to energies

  5. Isothermal activation of Mo2O5 ZSM-5 precursors during

    E-Print Network [OSTI]

    Iglesia, Enrique

    Isothermal activation of Mo2O5 21 ­ZSM-5 precursors during methane reactions: effects of reaction to petrochemicals and liquid fuels and chemicals remains a formidable technological challenge.1 Exchanged cations

  6. AB INITIO Modeling of Thermomechanical Properties of Mo-Based Alloys for Fossil Energy Conversion

    SciTech Connect (OSTI)

    Ching, Wai-Yim

    2013-12-31T23:59:59.000Z

    In this final scientific/technical report covering the period of 3.5 years started on July 1, 2011, we report the accomplishments on the study of thermo-mechanical properties of Mo-based intermetallic compounds under NETL support. These include computational method development, physical properties investigation of Mo-based compounds and alloys. The main focus is on the mechanical and thermo mechanical properties at high temperature since these are the most crucial properties for their potential applications. In particular, recent development of applying ab initio molecular dynamic (AIMD) simulations to the T1 (Mo{sub 5}Si{sub 3}) and T2 (Mo{sub 5}SiB{sub 2}) phases are highlighted for alloy design in further improving their properties.

  7. Electronic structure and conductivity of nanocomposite metal (Au,Ag,Cu,Mo)-containing amorphous carbon films

    E-Print Network [OSTI]

    Endrino, Jose L.

    2010-01-01T23:59:59.000Z

    dual-cathode arc deposition (PDC-FCVA) source containingand metal cathodes [2]. The PDC-FCVA system in combinationCu,Mo) incorporation in a-C by PDC-FCVA. The modification of

  8. Combining sedimentological, trace metal (Mn, Mo) and molecular evidence for reconstructing past water-column

    E-Print Network [OSTI]

    Wehrli, Bernhard

    Combining sedimentological, trace metal (Mn, Mo) and molecular evidence for reconstructing past online 22 June 2013 Abstract Here, we present sedimentological, trace metal, and molecular evidence underscores the value of combining sedimentological, geochemical, and microbiological approaches

  9. Enhanced absorption of monolayer MoS{sub 2} with resonant back reflector

    SciTech Connect (OSTI)

    Liu, Jiang-Tao, E-mail: jtliu@semi.ac.cn; Liu, Nian-Hua [Nanoscale Science and Technology Laboratory, Institute for Advanced Study, Nanchang University, Nanchang 330031 (China); Department of Physics, Nanchang University, Nanchang 330031 (China); Wang, Tong-Biao [Department of Physics, Nanchang University, Nanchang 330031 (China); Li, Xiao-Jing [College of Physics and Energy, Fujian Normal University, Fuzhou 350007 (China)

    2014-05-21T23:59:59.000Z

    The optical absorption of monolayer MoS{sub 2} on top of one-dimensional photonic crystal (1DPC) or metal films with spacer layers is theoretically investigated by extracting the permittivity of monolayer MoS{sub 2} from existing experimental results [K. F. Mak et al., Phys. Rev. Lett. 105, 136805 (2010)]. The absorption of graphene with 1DPC across a broad spectral range is substantially enhanced because of the photonic localization at the optical micro-cavity on top of the 1DPC or metal films. The absorption of monolayer MoS{sub 2} can be tuned by varying either the distance between the monolayer MoS{sub 2} and the back reflector or the thickness of the cover layers.

  10. Diffusional Interactions between U-Mo and Zr at 650°C as a Function of Time

    SciTech Connect (OSTI)

    Y. Park; Y. H. Sohn; D. D. Keiser, Jr.

    2015-01-01T23:59:59.000Z

    Development of monolithic U-Mo alloy fuel (typically U-10wt.%Mo) for the Reduced Enrichment for Research and Test Reactors (RERTR) program requires a use of Zr diffusion barrier to eliminate the diffusional interaction between the fuel alloy and Al-alloy cladding. The application of Zr barrier to the U-Mo fuel requires co-rolling process that utilizes a soaking temperature of 650°C, which represents the highest temperature the fuel system is exposed to during both fuel manufacturing and reactor application. Therefore, in this study, development of phase constituents, microstructure and diffusion kinetics of U-10wt.%Mo and Zr was examined using solid-to-solid diffusion couples annealed at 650°C for 240, 480 and 720 hours. Diffusional interactions were analyzed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Within the diffusion zone, a single-phase layer of ß-Zr was observed along with a discontinuous layer of Mo2Zr at the interface between the terminal ?-U(Mo) alloy and ß-Zr. In the vicinity of Mo2Zr phase, islands of ß-U and a-Zr phases were also found. In addition, accicular a-Zr phases were observed within the ?-U(Mo). Growth rate of this diffuaional interaction layer was determined to be 8.76 x 10-15 m2/sec, however with an assumption of certain incubation period. Consistency in these observation along with concentration profiles and diffusion paths are presented and discussed with respect to the diffusion couple that was furnace-cooled, annealed at 700°C in our previous study, and isothermal ternary phase diagram at 700°C.

  11. MoS{sub 2} nanotube exfoliation as new synthesis pathway to molybdenum blue

    SciTech Connect (OSTI)

    Visic, B., E-mail: bojana.visic@ijs.si [Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia); Gunde, M. Klanjsek [National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana (Slovenia)] [National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana (Slovenia); Kovac, J.; Iskra, I. [Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia)] [Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia); Jelenc, J.; Remskar, M. [Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia) [Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia); Centre of Excellence Namaste, Jamova cesta 39, SI-1000 Ljubljana (Slovenia)

    2013-02-15T23:59:59.000Z

    Graphical abstract: . Display Omitted Highlights: ? New synthesis approach to obtaining molybdenum blue via exfoliated MoS{sub 2} nanotubes. ? Material is prone to self assembly and is stable in high vacuum. ? Molecules are as small as 2 nm and their clusters are up to tens of nanometers. ? Change in absorption and oxidation states from the precursor MoS{sub 2}. -- Abstract: Molybdenum blue-type materials are usually obtained by partially reducing Mo{sup VI+} in acidic solutions, while in the presented method it is formed in ethanol solution of exfoliated MoS{sub 2} nanotubes, where the MoS{sub 2} flakes are the preferential location for their growth. Material was investigated by means of scanning electron and atomic force microscopy, showing the structure and self assembly, while also confirming that it is stable in high vacuum with molecules as small as 1.6 nm and the agglomerates of few tens of nanometres. The ultraviolet–visible and photoelectron spectrometry show the change in absorption properties and oxidation states from MoS{sub 2} structure to molybdenum blue, while the presence of sulphur suggests that this is a new type of molybdenum blue material.

  12. High reflectance and low stress Mo2C/Be multilayers

    DOE Patents [OSTI]

    Bajt, Sasa (Livermore, CA); Barbee, Jr., Troy W. (Palo Alto, CA)

    2001-01-01T23:59:59.000Z

    A material for extreme ultraviolet (EUV) multilayers that will reflect at about 11.3 nm, have a high reflectance, low stress, and high thermal and radiation stability. The material consists of alternating layers of Mo.sub.2 C and Be deposited by DC magnetron sputtering on a substrate, such as silicon. In one example a Mo.sub.2 C/Be multilayer gave 65.2% reflectance at 11.25 nm measured at 5 degrees off normal incidence angle, and consisted of 70 bilayers with a deposition period of 5.78 nm, and was deposited at 0.83 mTorr argon (Ar) sputtering pressure, with the first and last layers being Be. The stress of the multilayer is tensile and only +88 MPa, compared to +330 MPa of a Mo/Be multilayers of the same thickness. The Mo.sub.2 C/Be multilayer was capped with carbon which produced an increase in reflectivity of about 7% over a similar multilayer with no carbon capping material, thus raising the reflectivity from 58.3% to over 65%. The multilayers were formed using either Mo.sub.2 C or Be as the first and last layers, and initial testing has shown the formation of beryllium carbide at the interfaces between the layers which both stabilizes and has a smoothing effect, and appear to be smoother than the interfaces in Mo/Be multilayers.

  13. Effects of thermal treatment on the co-rolled U-Mo fuel foils

    SciTech Connect (OSTI)

    Dennis D. Keiser, Jr.; Tammy L. Trowbridge; Cynthia R. Breckenridge; Brady L. Mackowiak; Glenn A. Moore; Barry H. Rabin; Mitchell K. Meyer

    2014-11-01T23:59:59.000Z

    A monolithic fuel type is being developed to convert US high performance research and test reactors such as Advanced Test Reactor (ATR) at Idaho National Laboratory from highly enriched uranium (HEU) to low-enriched uranium (LEU). The interaction between the cladding and the U-Mo fuel meat during fuel fabrication and irradiation is known to have negative impacts on fuel performance, such as mechanical integrity and dimensional stability. In order to eliminate/minimize the direct interaction between cladding and fuel meat, a thin zirconium diffusion barrier was introduced between the cladding and U-Mo fuel meat through a co-rolling process. A complex interface between the zirconium and U-Mo was developed during the co-rolling process. A predictable interface between zirconium and U-Mo is critical to achieve good fuel performance since the interfaces can be the weakest link in the monolithic fuel system. A post co-rolling annealing treatment is expected to create a well-controlled interface between zirconium and U-Mo. A systematic study utilizing post co-rolling annealing treatment has been carried out. Based on microscopy results, the impacts of the annealing treatment on the interface between zirconium and U-Mo will be presented and an optima annealing treatment schedule will be suggested. The effects of the annealing treatment on the fuel performance will also be discussed.

  14. Photoluminescent BaMoO{sub 4} nanopowders prepared by complex polymerization method (CPM)

    SciTech Connect (OSTI)

    Azevedo Marques, Ana Paula de [Laboratorio de Analise Termica e Materiais, Departamento de Quimica, Universidade Federal do Rio Grande do Norte, 59072-970 Natal, RN (Brazil)]. E-mail: apamarques@liec.ufscar.br; Melo, Dulce M.A. de [Laboratorio de Analise Termica e Materiais, Departamento de Quimica, Universidade Federal do Rio Grande do Norte, 59072-970 Natal, RN (Brazil); Paskocimas, Carlos A. [Departamento de Engenharia Mecanica, Universidade Federal do Rio Grande do Norte, 59072-970 Natal, RN (Brazil); Pizani, Paulo S. [Laboratorio de Semicondutores, Departamento de Fisica, Universidade Federal de Sao Carlos, 13565-905 Sao Carlos, SP (Brazil); Joya, Miryam R. [Laboratorio de Semicondutores, Departamento de Fisica, Universidade Federal de Sao Carlos, 13565-905 Sao Carlos, SP (Brazil); Leite, Edson R. [Laboratorio Interdisciplinar de Eletroquimica e Ceramica, CMDMC, Departamento de Quimica, Universidade Federal de Sao Carlos 13565-905, Sao Carlos, SP (Brazil); Longo, Elson [CMDMC, LIEC, Instituto de Quimica, Universidade Estadual Paulista, 14801-907 Araraquara, SP (Brazil)

    2006-03-15T23:59:59.000Z

    The BaMoO{sub 4} nanopowders were prepared by the Complex Polymerization Method (CPM). The structure properties of the BaMoO{sub 4} powders were characterized by FTIR transmittance spectra, X-ray diffraction (XRD), Raman spectra, photoluminescence spectra (PL) and high-resolution scanning electron microscopy (HR-SEM). The XRD, FTIR and Raman data showed that BaMoO{sub 4} at 300 deg. C was disordered. At 400 deg. C and higher temperature, BaMoO{sub 4} crystalline scheelite-type phases could be identified, without the presence of additional phases, according to the XRD, FTIR and Raman data. The calculated average crystallite sizes, calculated by XRD, around 40 nm, showed the tendency to increase with the temperature. The crystallite sizes, obtained by HR-SEM, were around of 40-50 nm. The sample that presented the highest intensity of the red emission band was the one heat treated at 400 deg. C for 2 h, and the sample that displayed the highest intensity of the green emission band was the one heat treated at 700 deg. C for 2 h. The CPM was shown to be a low cost route for the production of BaMoO{sub 4} nanopowders, with the advantages of lower temperature, smaller time and reduced cost. The optical properties observed for BaMoO{sub 4} nanopowders suggested that this material is a highly promising candidate for photoluminescent applications.

  15. Synthesis and characterization of the ((CO)/sub 4/MoS/sub 2/MS/sub 2/)/sup 2 -/ and ((CO)/sub 4/MoS/sub 2/MS/sub 2/Mo(CO)/sub 4/)/sup 2 -/ ions (M = Mo, W): species containing group VI (6) metals in widely separated formal oxidation states

    SciTech Connect (OSTI)

    Rosenhein, L.D.; McDonald, J.W.

    1987-10-07T23:59:59.000Z

    Dinuclear and trinuclear sulfide-bridged complexes of the types (Et/sub 4/N)/sub 2/(MS/sub 4/(Mo(CO)/sub 4/)) and (Et/sub 4/N)/sub 2/(MS/sub 4/(Mo(CO)/sub 4/)/sub 2/) were prepared by the reaction of one or two equivalents of Mo(CO)/sub 4/(C/sub 7/H/sub 8/) (C/sub 7/H/sub 8/ = norbornadiene) with (Et/sub 4/N)/sub 2/(MS/sub 4/) (M = Mo, W) in methyl alcohol. Elemental analyses were consistent with the proposed formulae. Infrared spectra of all four compounds contain strong bands in the carbonyl region and low-energy bands characteristic of terminal and bridging M-S vibrations in linear, polynuclear, and sulfido-bridged species. Electrochemical experimental results support the hypothesis that the di- and trinuclear species contain both M(IV) (M = Mo, W) and Mo(0) oxidation states in the same complex. 33 references, 2 tables.

  16. Food and Drug Administration process validation activities to support 99Mo production at Sandia National Laboratories

    SciTech Connect (OSTI)

    McDonald, M.J.; Bourcier, S.C.; Talley, D.G.

    1997-07-01T23:59:59.000Z

    Prior to 1989 {sup 99}Mo was produced in the US by a single supplier, Cintichem Inc., Tuxedo, NY. Because of problems associated with operating its facility, in 1989 Cintichem elected to decommission the facility rather than incur the costs for repair. The demise of the {sup 99}Mo capability at Cintichem left the US totally reliant upon a single foreign source, Nordion International, located in Ottawa Canada. In 1992 the DOE purchased the Cintichem {sup 99}Mo Production Process and Drug Master File (DMF). In 1994 the DOE funded Sandia National Laboratories (SNL) to produce {sup 99}Mo. Although Cintichem produced {sup 99}Mo and {sup 99m}Tc generators for many years, there was no requirement for process validation which is now required by the Food and Drug Administration (FDA). In addition to the validation requirement, the requirements for current Good manufacturing Practices were codified into law. The purpose of this paper is to describe the process validation being conducted at SNL for the qualification of SNL as a supplier of {sup 99}Mo to US pharmaceutical companies.

  17. Mechanistic study of methanol synthesis from CO? and H? on a modified model Mo?S? cluster

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

    Liu, Cheng [Yangzhou Univ., Yangzhou, Jiangsu (China); Liu, Ping [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2015-02-06T23:59:59.000Z

    We report the methanol synthesis from CO? and H? on metal (M = K, Ti, Co, Rh, Ni, and Cu)-modified model Mo?S? catalyst using density functional theory (DFT). The results show that the catalytic behavior of a Mo?S? cluster is changed significantly due to the modifiers, via the electron transfer from M to Mo?S? and therefore the reduction of the Mo cation (ligand effect) and the direct participation of M in the reaction (ensemble effect) to promote some elementary steps. With the most positively charged modifier, the ligand effect in the case of K-Mo?S? is the most obvious among the systems studied; however it cannot compete with the ensemble effect, which plays a dominate role in determining activity via the electrostatic attraction in particular to stabilize the CHxOy species adsorbed at the Mo sites of Mo?S?. In comparison, the ligand effect is weaker and the ensemble effect is more important when the other modifiers are used. In addition, the modifiers also vary the optimal reaction pathway for methanol synthesis on Mo?S?, ranging from the reverse water-gas shift (RWGS) + CO hydrogenation as that of Mo?S? to the formate pathway. Finally, K is able to accelerate the methanol synthesis on Mo?S? the most; while the promotion by Rh is relatively small. Using the modifiers like Ti, Co, Ni, and Cu, the activity of Mo?S? is decreased instead. The relative stability between *HCOO and *HOCO is identified as a descriptor to capture the variation in mechanism and scales well with the estimated activity. Our study not only provides better understanding of the reaction mechanism and actives on the modified Mo?S?, but also predicts some possible candidates, which can be used a promoter to facilitate the CH?OH synthesis on Mo sulfides.

  18. Mechanistic study of methanol synthesis from CO? and H? on a modified model Mo?S? cluster

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

    Liu, Cheng; Liu, Ping

    2015-02-06T23:59:59.000Z

    We report the methanol synthesis from CO? and H? on metal (M = K, Ti, Co, Rh, Ni, and Cu)-modified model Mo?S? catalyst using density functional theory (DFT). The results show that the catalytic behavior of a Mo?S? cluster is changed significantly due to the modifiers, via the electron transfer from M to Mo?S? and therefore the reduction of the Mo cation (ligand effect) and the direct participation of M in the reaction (ensemble effect) to promote some elementary steps. With the most positively charged modifier, the ligand effect in the case of K-Mo?S? is the most obvious among themore »systems studied; however it cannot compete with the ensemble effect, which plays a dominate role in determining activity via the electrostatic attraction in particular to stabilize the CHxOy species adsorbed at the Mo sites of Mo?S?. In comparison, the ligand effect is weaker and the ensemble effect is more important when the other modifiers are used. In addition, the modifiers also vary the optimal reaction pathway for methanol synthesis on Mo?S?, ranging from the reverse water-gas shift (RWGS) + CO hydrogenation as that of Mo?S? to the formate pathway. Finally, K is able to accelerate the methanol synthesis on Mo?S? the most; while the promotion by Rh is relatively small. Using the modifiers like Ti, Co, Ni, and Cu, the activity of Mo?S? is decreased instead. The relative stability between *HCOO and *HOCO is identified as a descriptor to capture the variation in mechanism and scales well with the estimated activity. Our study not only provides better understanding of the reaction mechanism and actives on the modified Mo?S?, but also predicts some possible candidates, which can be used a promoter to facilitate the CH?OH synthesis on Mo sulfides.« less

  19. 2005 ASME Pressure Vessels and Piping Conference Denver, Colorado, USA

    E-Print Network [OSTI]

    Özer, Mutlu

    1 DRAFT 2005 ASME Pressure Vessels and Piping Conference Denver, Colorado, USA July 17-21, 2005 subjected to lateral earthquake loads. The results are verified with different codes (e.g. Eurocode8, API

  20. Chevron U.S.A. Inc.- 14-119-LNG

    Broader source: Energy.gov [DOE]

    The Office of Fossil Energy gives notice of receipt of an Application filed August 27, 2014 by Chevron U.S.A. Inc. (Chevron), requesting blanket authorization to export liquefied natural gas (LNG)...

  1. DuraLamp USA: Proposed Penalty (2010-CE-0912)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that DuraLamp USA, Inc. failed to certify a variety of general service fluorescent lamps as compliant with the applicable energy conservation standards.

  2. Smeg USA: Proposed Penalty (2011-CE-14/1909)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Smeg USA, Inc. failed to certify a variety of dishwashers and refrigerators as compliant with the applicable energy conservation standards.

  3. De'Longhi USA: Order (2010-CE-2114)

    Broader source: Energy.gov [DOE]

    DOE issued an Order after entering into a Compromise Agreement with De'Longhi USA, Inc. to resolve a case involving the failure to certify that a variety of dehumidifiers comply with the applicable energy conservation standards.

  4. De'Longhi USA: Proposed Penalty (2010-CE-2114)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that De'Longhi USA, Inc. failed to certify a variety of dehumidifiers as compliant with the applicable energy conservation standards.

  5. atlanta georgia usa: Topics by E-print Network

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

    values SECURING AMERICA'S FUTURE 12;0 1Georgia Tech Research Institute Annual Report Bennett, Gisele 9 School of Biology Atlanta, Georgia 30332-0230 USA Biology and Medicine...

  6. Designing Sustainability at BMW Group: The Designworks/USA Experience

    E-Print Network [OSTI]

    McElhaney, Kellie A; Toffel, Michael W.; Hill, Natalie

    2002-01-01T23:59:59.000Z

    SUSTAINABILITY MANAGEMENT: FROM BMW GROUP TO DESIGNWORKS/USAGuido Prick and Chris Bangle of BMW Group. In addition, weDesigning Sustainability at BMW Group: The Designworks/USA

  7. Fish mercury distribution in Massachusetts, USA lakes

    SciTech Connect (OSTI)

    Rose, J.; Hutcheson, M.S.; West, C.R.; Pancorbo, O.; Hulme, K.; Cooperman, A.; DeCesare, G.; Isaac, R.; Screpetis, A.

    1999-07-01T23:59:59.000Z

    The sediment, water, and three species of fish from 24 of Massachusetts' (relatively) least-impacted water bodies were sampled to determine the patterns of variation in edible tissue mercury concentrations and the relationships of these patterns to characteristics of the water, sediment, and water bodies (lake, wetland, and watershed areas). Sampling was apportioned among three different ecological subregions and among lakes of differing trophic status. The authors sought to partition the variance to discover if these broadly defined concepts are suitable predictors of mercury levels in fish. Average muscle mercury concentrations were 0.15 mg/kg wet weight in the bottom-feeding brown bullheads (Ameriurus nebulosus); 0.31 mg/kg in the omnivorous yellow perch (Perca flavescens); and 0.39 mg/kg in the predaceous largemouth bass (Micropterus salmoides). Statistically significant differences in fish mercury concentrations between ecological subregions in Massachusetts, USA, existed only in yellow perch. The productivity level of the lakes (as deduced from Carlson's Trophic Status Index) was not a strong predictor of tissue mercury concentrations in any species. pH was a highly (inversely) correlated environmental variable with yellow perch and brown bullhead tissue mercury. Largemouth bass tissue mercury concentrations were most highly correlated with the weight of the fish (+), lake size (+), and source area sizes (+). Properties of individual lakes appear more important for determining fish tissue mercury concentrations than do small-scale ecoregional differences. Species that show major mercury variation with size or trophic level may not be good choices for use in evaluating the importance of environmental variables.

  8. Enriched Zn$^{100}$MoO$_4$ scintillating bolometers to search for $0 ? 2?$ decay of $^{100}$Mo with the LUMINEU experiment

    E-Print Network [OSTI]

    A. S. Barabash; D. M. Chernyak; F. A. Danevich; A. Giuliani; I. M. Ivanov; E. P. Makarov; M. Mancuso; S. Marnieros; S. G. Nasonov; C. Nones; E. Olivieri; G. Pessina; D. V. Poda; V. N. Shlegel; M. Tenconi; V. I. Tretyak; Ya. V. Vasiliev; M. Velazquez; V. N. Zhdankov

    2014-07-05T23:59:59.000Z

    The LUMINEU project aims at performing a demonstrator underground experiment searching for the neutrinoless double beta decay of the isotope $^{100}$Mo embedded in zinc molybdate (ZnMoO$_4$) scintillating bolometers. In this context, a zinc molybdate crystal boule enriched in $^{100}$Mo to 99.5\\% with a mass of 171 g was grown for the first time by the low-thermal-gradient Czochralski technique. The production cycle provided a high yield (the crystal boule mass was 84\\% of initial charge) and an acceptable level -- around 4\\% -- of irrecoverable losses of the costy enriched material. Two crystals of 59 g and 63 g, obtained from the enriched boule, were tested aboveground at milli-Kelvin temperature as scintillating bolometers. They showed a high detection performance, equivalent to that of previously developed natural ZnMoO$_4$ detectors. These results pave the way to future sensitive searches based on the LUMINEU technology, capable to approach and explore the inverted hierarchy region of the neutrino mass pattern.

  9. MOBILE HIGHWAY INVENTORY AND MEASUREMENT SYSTEM Norbert H. Maerz, University of Missouri-Rolla, 1006 Kingshighway, Rolla MO, 65409-0660, USA. Tel

    E-Print Network [OSTI]

    Maerz, Norbert H.

    Surveyor® : MOBILE HIGHWAY INVENTORY AND MEASUREMENT SYSTEM Norbert H. Maerz, University classified inventories annotated with object dimensions, object position relative to the road, and global collection, Highway measurements, Instrumented vehicle, Highway inventory management, Infrastructure

  10. AUTOMATED REAL TIME PAVEMENT MARKING RETROREFLECTIVITY MEASUREMENTS Norbert H. Maerz, University of Missouri-Rolla, 1006 Kingshighway, Rolla MO, 65409-0660, USA. Tel: (573) 341-

    E-Print Network [OSTI]

    Maerz, Norbert H.

    LASERLUX® : AUTOMATED REAL TIME PAVEMENT MARKING RETROREFLECTIVITY MEASUREMENTS Norbert H. Maerz retroreflectometer is being used to measure the retroreflectivity of pavement lane markings. This vehicle-mounted retroreflectometer provides the measurements needed for proper highway pavement marking management. Quick, simple

  11. Control of absorption of monolayer MoS$_{2}$ thin-film transistor in one-dimensional defective photonic crystal

    E-Print Network [OSTI]

    Yang, Fang-Fang; Xiao, Wen-bo; Liu, Jiang-Tao; Liu, Nian-Hua

    2014-01-01T23:59:59.000Z

    The light absorption and transmission of monolayer MoS$_{2}$ in a one-dimensional defective photonic crystal (d-1DPC) is theoretically investigated. The study shows that the strong interference effect decreases photon density in particular areas of the microcavity. The d-1DPC can reduce light absorption of monolayer MoS$_{2}$ and enhance light transmission. The impact of monolayer MoS$_{2}$ light absorption on the localization effect of photon is investigated when monolayer MoS$_{2}$ and the organic light-emitting diode are located in the same microcavity. However, monolayer MoS$_{2}$ does not reduce the localization effect of light by regulating the position of monolayer MoS$_{2}$ in the microcavity.

  12. Effects of rhenium alloying on the microstructures and mechanical properties of directionally solidified NiAl-Mo eutectic alloy

    SciTech Connect (OSTI)

    Misra, A.; Wu, Z.L.; Gibala, R. [Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Materials Science and Engineering

    1997-12-31T23:59:59.000Z

    Low ductility of the reinforcing bcc metal phase at room temperature and weak interfaces can limit the intrinsic toughness and ductility of NiAl-bcc metal eutectic composites. The potential of rhenium (Re) addition, which is known to solid solution soften and lower the ductile-to-brittle transition temperature of various bcc metals, to enhance the ductility and toughness of a directionally solidified NiAl-9 at.% Mo eutectic alloy was investigated. Re partitioned to the bcc metal phase and formed a substitutional solid solution. The interface morphology was changed from a faceted to a non-faceted one. Re alloying caused softening of the Mo fibers, and as a result NiAl-Mo(Re) alloys were softer in compression and flexure and had {approximately}20% higher fracture toughness values as compared to the transverse orientation toughness of NiAl-9Mo alloy. The toughness of the NiAl-Mo(Re) alloys was lower than the longitudinal orientation toughness of the NiAl-9Mo alloy due to the poor alignment of the Mo(Re) phase with the growth direction. The toughening mechanisms have been evaluated and schemes for processing NiAl-Mo(Re) alloys for higher toughness in the longitudinal orientation are suggested. The role of the residual interstitial impurities and partitioning of Ni and Al to Mo fibers on the mechanical properties are highlighted.

  13. Method for the production of {sup 99m}Tc compositions from {sup 99}Mo-containing materials

    DOE Patents [OSTI]

    Bennett, R.G.; Christian, J.D.; Grover, S.B.; Petti, D.A.; Terry, W.K.; Yoon, W.Y.

    1998-09-01T23:59:59.000Z

    An improved method is described for producing {sup 99m}Tc compositions from {sup 99}Mo compounds. {sup 100}Mo metal or {sup 100}MoO{sub 3} is irradiated with photons in a particle (electron) accelerator to ultimately produce {sup 99}MoO{sub 3}. This composition is then heated in a reaction chamber to form a pool of molten {sup 99}MoO{sub 3} with an optimum depth of 0.5--5 mm. A gaseous mixture thereafter evolves from the molten {sup 99}MoO{sub 3} which contains vaporized {sup 99}MoO{sub 3}, vaporized {sup 99m}TcO{sub 3}, and vaporized {sup 99m}TcO{sub 2}. This mixture is then combined with an oxidizing gas (O{sub 2(g)}) to generate a gaseous stream containing vaporized {sup 99m}Tc{sub 2}O{sub 7} and vaporized {sup 99}MoO{sub 3}. Next, the gaseous stream is cooled in a primary condensation stage in the reaction chamber to remove vaporized {sup 99}MoO{sub 3}. Cooling is undertaken at a specially-controlled rate to achieve maximum separation efficiency. The gaseous stream is then cooled in a sequential secondary condensation stage to convert vaporized {sup 99m}Tc{sub 2}O{sub 7} into a condensed {sup 99m}Tc-containing reaction product which is collected. 1 fig.

  14. Method for the production of .sup.99m Tc compositions from .sup.99 Mo-containing materials

    DOE Patents [OSTI]

    Bennett, Ralph G. (Idaho Falls, ID); Christian, Jerry D. (Idaho Falls, ID); Grover, S. Blaine (Idaho Falls, ID); Petti, David A. (Idaho Falls, ID); Terry, William K. (Idaho Falls, ID); Yoon, Woo Y. (Idaho Falls, ID)

    1998-01-01T23:59:59.000Z

    An improved method for producing .sup.99m Tc compositions from .sup.99 Mo compounds. .sup.100 Mo metal or .sup.100 MoO.sub.3 is irradiated with photons in a particle (electron) accelerator to ultimately produce .sup.99 MoO.sub.3. This composition is then heated in a reaction chamber to form a pool of molten .sup.99 MoO.sub.3 with an optimum depth of 0.5-5 mm. A gaseous mixture thereafter evolves from the molten .sup.99 MoO.sub.3 which contains vaporized .sup.99 MoO.sub.3, vaporized .sup.99m TcO.sub.3, and vaporized .sup.99m TcO.sub.2. This mixture is then combined with an oxidizing gas (O.sub.2(g)) to generate a gaseous stream containing vaporized .sup.99m Tc.sub.2 O.sub.7 and vaporized .sup.99 MoO.sub.3. Next, the gaseous stream is cooled in a primary condensation stage in the reaction chamber to remove vaporized .sup.99 MoO.sub.3. Cooling is undertaken at a specially-controlled rate to achieve maximum separation efficiency. The gaseous stream is then cooled in a sequential secondary condensation stage to convert vaporized .sup.99m Tc.sub.2 O.sub.7 into a condensed .sup.99m Tc-containing reaction product which is collected.

  15. An in situ x-ray spectroscopic study of Mo?{sup +} speciation in supercritical aqueous solutions

    SciTech Connect (OSTI)

    Yan, Hao [Missouri State University, Springfield, MO (United States); Mayanovic, Robert A. [Missouri State University, Springfield, MO (United States); Anderson, Alan J. [St. Francis Xavier Univ., Antigonish, NS (Canada); Meredith, Peter R. [St. Francis Xavier Univ., Antigonish, NS (Canada)

    2011-09-01T23:59:59.000Z

    In situ XRF and Mo K-edge XAS measurements were made on the ID20-B beam line at the APS on MoO? in 1 M H?O? aqueous solution, at temperatures between 400 and 600 °C. The samples were analyzed using a modified Bassett-type hydrothermal diamond anvil cell. Our XRF measurements show that MoO? is highly soluble in the supercritical H?O? aqueous fluid. Analysis of XAS spectra shows that the Mo?{sup +} ion exhibits consistent speciation in the H?O? aqueous solution at temperatures ranging from 400 to 600 °C.

  16. Mechanical properties of MoS2/graphene heterostructures Jin-Wu Jiang and Harold S. Park

    E-Print Network [OSTI]

    of the heterostructure is considerably smaller than the MoS2 due to lateral buckling of the outer graphene layers owning

  17. Elementary Steps of Syngas Reactions on Mo2C(001): Adsorption Thermochemistry and Bond Dissociation

    SciTech Connect (OSTI)

    Medford, Andrew

    2012-02-16T23:59:59.000Z

    Density functional theory (DFT) and ab initio thermodynamics are applied in order to investigate the most stable surface and subsurface terminations of Mo{sub 2}C(001) as a function of chemical potential and in the presence of syngas. The Mo-terminated (001) surface is then used as a model surface to evaluate the thermochemistry and energetic barriers for key elementary steps in syngas reactions. Adsorption energy scaling relations and Broensted-Evans-Polanyi relationships are established and used to place Mo{sub 2}C into the context of transition metal surfaces. The results indicate that the surface termination is a complex function of reaction conditions and kinetics. It is predicted that the surface will be covered by either C{sub 2}H{sub 2} or O depending on conditions. Comparisons to transition metals indicate that the Mo-terminated Mo{sub 2}C(001) surface exhibits carbon reactivity similar to transition metals such as Ru and Ir, but is significantly more reactive towards oxygen.

  18. TEM Characterization of High Burn-up Microstructure of U-7Mo Alloy

    SciTech Connect (OSTI)

    Jian Gan; Brandon Miller; Dennis Keiser; Adam Robinson; James Madden; Pavel Medvedev; Daniel Wachs

    2014-04-01T23:59:59.000Z

    As an essential part of global nuclear non-proliferation effort, the RERTR program is developing low enriched U-Mo fuels (< 20% U-235) for use in research and test reactors that currently employ highly enriched uranium fuels. One type of fuel being developed is a dispersion fuel plate comprised of U-7Mo particles dispersed in Al alloy matrix. Recent TEM characterizations of the ATR irradiated U-7Mo dispersion fuel plates include the samples with a local fission densities of 4.5, 5.2, 5.6 and 6.3 E+21 fissions/cm3 and irradiation temperatures of 101-136?C. The development of the irradiated microstructure of the U-7Mo fuel particles consists of fission gas bubble superlattice, large gas bubbles, solid fission product precipitates and their association to the large gas bubbles, grain subdivision to tens or hundreds of nanometer size, collapse of bubble superlattice, and amorphisation. This presentation will describe the observed microstructures specifically focusing on the U-7Mo fuel particles. The impact of the observed microstructure on the fuel performance and the comparison of the relevant features with that of the high burn-up UO2 fuels will be discussed.

  19. Beta. -MoO sub 3 produced from a novel freeze drying route

    SciTech Connect (OSTI)

    Parise, J.B. (State Univ. of New York, Stony Brook (United States)); McCarron, E.M. III (E.I. Dupont de Nemours and Co., Inc., Wilmington, DE (United States)); Von Dreele, R.; Goldstone, J.A. (Los Alamos National Lab., NM (United States))

    1991-07-01T23:59:59.000Z

    Powdered samples of {beta}-MoO{sub 3} have been produced by the gentle heat treatment of freeze-dried molybdic acid at 350{degree}C for 1 hr. The samples, yellow-green in appearance, contained varying amounts of the thermodynamically stable {alpha}-MoO{sub 3}, depending upon the time and temperature of heat treatment. Neutron diffraction data were collected at 300 K. all peaks, not attributable to {alpha}-MoO{sub 3}, were indexed on the basis of a monoclinic cell, P2{sub 1}/c, {alpha} = 7.1228(7), b = 5.3660(6), c = 5.5665(6), {beta} = 92.01(1){degree}, V = 212.62(6){angstrom}{sup 3}. The structure, which is related to ReO{sub 3}, contains two crystallographically independent octahedra. Both show evidence of disorder at the Mo and O sites. Two distinct orientations of a short mo-O distance, suggestive of the type of molybdenyl bond observed in both the {alpha} and {beta}{prime}-forms, are primarily responsible for the observed disordering.

  20. Oxidation and creep behavior of Mo*5*Si*3* based materials

    SciTech Connect (OSTI)

    Meyer, M.

    1995-06-19T23:59:59.000Z

    Mo{sub 5}Si{sub 3} shows promise as a high temperature creep resistant material. The high temperature oxidation resistance of Mo{sub 5}Si{sub 3} has been found to be poor, however, limiting its use in oxidizing atmospheres. Undoped Mo{sub 5}Si{sub 3} exhibits mass loss in the temperature range 800{degrees}-1200{degrees}C due to volatilization of molybdenum oxide, indicating that the silica scale does not provide a passivating layer. The addition of boron results in protective scale formation and parabolic oxidation kinetics in the temperature range of 1050{degrees}-1300{degrees}C. The oxidation rate of Mo{sub 5}Si{sub 3} was decreased by 5 orders of magnitude at 1200{degrees}C by doping with less than two weight percent boron. Boron doping eliminates catastrophic {open_quote}pest{close_quote} oxidation at 800{degrees}C. The mechanism for improved oxidation resistance of boron doped Mo{sub 5}Si{sub 3} is due to scale modification by boron.

  1. Liquid generation during sintering of Fe-3.5%Mo powder compacts with elemental boron additions

    SciTech Connect (OSTI)

    Sarasola, M.; Gomez-Acebo, T.; Castro, F

    2004-09-06T23:59:59.000Z

    The mechanisms for liquid generation and the microstructural development during sintering of a Fe-3.5Mo-0.3B alloy were studied. Interrupted sintering experiments followed by water quenching from specific temperatures within the sintering cycle have been carried out. The influence of Mo, both, on the final microstructure and on the behaviour of boron prior to, during and after the formation of the liquid phase, was studied through observation of the quenched samples under LOM and SEM. The study shows that prior to the formation of the liquid phase, boron diffuses into the metallic particles forming inter and intragranular precipitates of the (Fe,Mo){sub 2}B type. At higher temperatures a continuous Fe/Mo/B liquid phase, with excellent wetting characteristics, is formed thus leading to near fully dense materials. The generation of the liquid is based on a eutectic reaction involving the mixed (Fe,Mo){sub 2}B borides previously formed. The development of the microstructure after liquid formation is described.

  2. Atomistic full-band simulations of monolayer MoS{sub 2} transistors

    SciTech Connect (OSTI)

    Chang, Jiwon; Register, Leonard F.; Banerjee, Sanjay K. [Microelectronics Research Center, The University of Texas at Austin, Austin, Texas 78758 (United States)] [Microelectronics Research Center, The University of Texas at Austin, Austin, Texas 78758 (United States)

    2013-11-25T23:59:59.000Z

    We study the transport properties of deeply scaled monolayer MoS{sub 2} n-channel metal-oxide-semiconductor field effect transistors (MOSFETs), using full-band ballistic quantum transport simulations, with an atomistic tight-binding Hamiltonian obtained from density functional theory. Our simulations suggest that monolayer MoS{sub 2} MOSFETs can provide near-ideal subthreshold slope, suppression of drain-induced barrier lowering, and gate-induced drain leakage. However, these full-band simulations exhibit limited transconductance. These ballistic simulations also exhibit negative differential resistance (NDR) in the output characteristics associated with the narrow width in energy of the lowest conduction band, but this NDR may be substantially reduced or eliminated by scattering in MoS{sub 2}.

  3. Highly conducting SrMoO{sub 3} thin films for microwave applications

    SciTech Connect (OSTI)

    Radetinac, Aldin, E-mail: aldin@oxide.tu-darmstadt.de; Mani, Arzhang; Ziegler, Jürgen; Alff, Lambert; Komissinskiy, Philipp, E-mail: komissinskiy@oxide.tu-darmstadt.de [Institute of Materials Science, TU Darmstadt, Alarich-Weiss-Str. 2, 64287 Darmstadt (Germany); Melnyk, Sergiy; Nikfalazar, Mohammad; Zheng, Yuliang; Jakoby, Rolf [Institute for Microwave Engineering and Photonics, TU Darmstadt, Merckstraße 25, 64283 Darmstadt (Germany)

    2014-09-15T23:59:59.000Z

    We have measured the microwave resistance of highly conducting perovskite oxide SrMoO{sub 3} thin film coplanar waveguides. The epitaxial SrMoO{sub 3} thin films were grown by pulsed laser deposition and showed low mosaicity and smooth surfaces with a root mean square roughness below 0.3?nm. Layer-by-layer growth could be achieved for film thicknesses up to 400?nm as monitored by reflection high-energy electron diffraction and confirmed by X-ray diffraction. We obtained a constant microwave resistivity of 29???·cm between 0.1 and 20?GHz by refining the frequency dependence of the transmission coefficients. Our result shows that SrMoO{sub 3} is a viable candidate as a highly conducting electrode material for all-oxide microwave electronic devices.

  4. Time exposure performance of Mo-Au Gibbsian segregating alloys for extreme ultraviolet collector optics

    SciTech Connect (OSTI)

    Qiu Huatan; Srivastava, Shailendra N.; Thompson, Keith C.; Neumann, Martin J.; Ruzic, David N

    2008-05-01T23:59:59.000Z

    Successful implementation of extreme ultraviolet (EUV) lithography depends on research and progress toward minimizing collector optics degradation from intense plasma erosion and debris deposition. Thus studying the surface degradation process and implementing innovative methods, which could enhance the surface chemistry causing the mirrors to suffer less damage, is crucial for this technology development. A Mo-Au Gibbsian segregation (GS) alloy is deposited on Si using a dc dual-magnetron cosputtering system and the damage is investigated as a result of time dependent exposure in an EUV source. A thin Au segregating layer is maintained through segregation during exposure, even though overall erosion in the Mo-Au sample is taking place in the bulk. The reflective material, Mo, underneath the segregating layer is protected by this sacrificial layer, which is lost due to preferential sputtering. In addition to theoretical work, experimental results are presented on the effectiveness of the GS alloys to be used as potential EUV collector optics material.

  5. Neutrino-nucleus scattering of {sup 95,97}Mo and {sup 116}Cd

    SciTech Connect (OSTI)

    Ydrefors, E. [Royal Institute of Technology (KTH), Alba Nova University Center, SE-10691 Stockholm, Sweden and Department of Physics, P.O. Box 35 (YFL), FI-40014 University of Jyväskylä (Finland); Almosly, W.; Suhonen, J. [Department of Physics, P.O. Box 35 (YFL), FI-40014 University of Jyväskylä (Finland)

    2013-12-30T23:59:59.000Z

    Accurate knowledge about the nuclear responses to supernova neutrinos for relevant nuclear targets is important both for neutrino detection and for astrophysical applications. In this paper we discuss the cross sections for the charged-current neutrino-nucleus scatterings off {sup 95,97}Mo and {sup 116}Cd. The microscopic quasiparticle-phonon model is adopted for the odd-even nuclei {sup 95,97}Mo. In the case of {sup 116}Cd we present cross sections both for the Bonn one-boson-exchange potential and self-consistent calculations based on modern Skyrme interactions.

  6. Characterization of metal contacts for two-dimensional MoS{sub 2} nanoflakes

    SciTech Connect (OSTI)

    Walia, Sumeet, E-mail: madhu.bhaskaran@rmit.edu.au, E-mail: kourosh.kalantar@rmit.edu.au, E-mail: sumeet.walia@rmit.edu.au; Balendhran, Sivacarendran; Sriram, Sharath; Bhaskaran, Madhu, E-mail: madhu.bhaskaran@rmit.edu.au, E-mail: kourosh.kalantar@rmit.edu.au, E-mail: sumeet.walia@rmit.edu.au [Functional Materials and Microsystems Research Group, RMIT University, Melbourne, Victoria 3000 (Australia) [Functional Materials and Microsystems Research Group, RMIT University, Melbourne, Victoria 3000 (Australia); School of Electrical and Computer Engineering, RMIT University, Melbourne, Victoria 3000 (Australia); Wang, Yichao; Ab Kadir, Rosmalini; Sabirin Zoolfakar, Ahmad; Atkin, Paul; Zhen Ou, Jian; Kalantar-zadeh, Kourosh, E-mail: madhu.bhaskaran@rmit.edu.au, E-mail: kourosh.kalantar@rmit.edu.au, E-mail: sumeet.walia@rmit.edu.au [School of Electrical and Computer Engineering, RMIT University, Melbourne, Victoria 3000 (Australia)] [School of Electrical and Computer Engineering, RMIT University, Melbourne, Victoria 3000 (Australia)

    2013-12-02T23:59:59.000Z

    While layered materials are increasingly investigated for their potential in nanoelectronics, their functionality and efficiency depend on charge injection into the materials via metallic contacts. This work explores the characteristics of different metals (aluminium, tungsten, gold, and platinum) deposited on to nanostructured thin films made of two-dimensional (2D) MoS{sub 2} flakes. Metals are chosen based on their work functions relative to the electron affinity of MoS{sub 2}. It is observed, and analytically verified that lower work functions of the contact metals lead to smaller Schottky barrier heights and consequently higher charge carrier injection through the contacts.

  7. Evolution of level density step structures from 56,57-Fe to 96,97-Mo

    E-Print Network [OSTI]

    A. Schiller; E. Tavukcu; L. A. Bernstein; P. E. Garrett; M. Guttormsen; M. Hjorth-Jensen; C. W. Johnson; G. E. Mitchell; J. Rekstad; S. Siem; A. Voinov; W. Younes

    2003-02-24T23:59:59.000Z

    Level densities have been extracted from primary gamma spectra for 56,57-Fe and 96,97-Mo nuclei using (3-He,alpha gamma) and (3-He,3-He') reactions on 57-Fe and 97-Mo targets. The level density curves reveal step structures above the pairing gap due to the breaking of nucleon Cooper pairs. The location of the step structures in energy and their shapes arise from the interplay between single-particle energies and seniority-conserving and seniority-non-conserving interactions.

  8. Background radioactivity of construction materials, raw substance and ready-made CaMoO4 crystals

    E-Print Network [OSTI]

    Busanov, O A; Gavriljuk, Yu M; Gezhaev, A M; Kazalov, V V; Kornoukhov, V N; Kuzminov, V V; Moseev, P S; Panasenko, S I; Ratkevich, S S; Yakimenko, S P

    2013-01-01T23:59:59.000Z

    The results of measurements of natural radioactive isotopes content in different source materials of natural and enriched composition used for CaMoO4 scintillation crystal growing are presented. The crystals are to be used in the experiment to search for double neutrinoless betas-decay of Mo-100.

  9. Pseudo-elastic deformation behavior in a Ti/Mo-based alloy , M. Aindow a,*, S.P. Alpay a

    E-Print Network [OSTI]

    Alpay, S. Pamir

    , and are increasingly finding applications in aerospace, oil well systems and automotive parts [1]. Alloys in the metaPseudo-elastic deformation behavior in a Ti/Mo-based alloy T. Zhou a , M. Aindow a,*, S.P. Alpay 2003 Abstract It is shown that the pseudo-elastic response in a series of Ti­Mo­V­Nb­Al alloys with 8

  10. Solar Energy Materials & Solar Cells 58 (1999) 199}208 The behaviour of Na implanted into Mo thin "lms

    E-Print Network [OSTI]

    Rockett, Angus

    Solar Energy Materials & Solar Cells 58 (1999) 199}208 The behaviour of Na implanted into Mo thin, As ngstro( m Solar Center, P.O. Box 534, SE-751 21 Uppsala, Sweden Department of Materials Science Mo thin "lms used as back contacts for Cu(In,Ga)Se solar cells. The samples were analysed

  11. Ultra-thin Titanium Oxide Films on Accession #s 00936, 00937,00938 Mo(112), Measured by XPS Technique: XPS

    E-Print Network [OSTI]

    Goodman, Wayne

    Ultra-thin Titanium Oxide Films on Accession #s 00936, 00937,00938 Mo(112), Measured by XPS preparation methods were employed to grow a well-ordered ultra-thin titanium oxide film on Mo(J (2), The tirst: photoemission; titanium oxide; tllin film PACS: 81.15.Gh. 79,60.Dp SPECIMEN DESCRIPTION (Accession #00936) Host

  12. Giant Two-Photon Absorption Coefficient and Frequency Up-Converted Luminescence in Monolayer MoS2

    E-Print Network [OSTI]

    Li, Yuanxin; Zhang, Saifeng; Zhang, Xiaoyan; Feng, Yanyan; Wang, Kangpeng; Zhang, Long; Wang, Jun

    2015-01-01T23:59:59.000Z

    Strong two-photon absorption (TPA) in monolayer MoS2 is demonstrated in contrast to saturable absorption (SA) in multilayer MoS2 under the excitation of femtosecond laser pulses in the near infrared region. MoS2 in the forms of monolayer single crystal and multilayer triangular islands are grown on either quartz or SiO2/Si by employing the seeding method through chemistry vapor deposition. The nonlinear transmission measurements reveal that monolayer MoS2 possesses a giant nonsaturation TPA coefficient, larger than that of conventional semiconductors. As a result of TPA, two-photon pumped frequency up-converted luminescence is observed directly in the monolayer MoS2. For the multilayer MoS2, the SA response is demonstrated with the ratio of the excited-state absorption cross section to ground-state cross section of 0.18. In addition, the laser damage threshold of the monolayer MoS2 is 97 GW/cm2, larger than that of the multilayer MoS2 of 78 GW/cm2.

  13. High blue-near ultraviolet photodiode response of vertically stacked graphene-MoS{sub 2}-metal heterostructures

    SciTech Connect (OSTI)

    Wi, Sungjin; Chen, Mikai; Nam, Hongsuk; Liu, Amy C.; Meyhofer, Edgar; Liang, Xiaogan, E-mail: xiaoganl@umich.edu [Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States)

    2014-06-09T23:59:59.000Z

    We present a study on the photodiode response of vertically stacked graphene/MoS{sub 2}/metal heterostructures in which MoS{sub 2} layers are doped with various plasma species. In comparison with undoped heterostructures, such doped ones exhibit significantly improved quantum efficiencies in both photovoltaic and photoconductive modes. This indicates that plasma-doping-induced built-in potentials play an important role in photocurrent generation. As compared to indium-tin-oxide/ MoS{sub 2}/metal structures, the presented graphene/MoS{sub 2}/metal heterostructures exhibit greatly enhanced quantum efficiencies in the blue-near ultraviolet region, which is attributed to the low density of recombination centers at graphene/MoS{sub 2} heterojunctions. This work advances the knowledge for making photo-response devices based on layered materials.

  14. Single-layer MoS{sub 2} roughness and sliding friction quenching by interaction with atomically flat substrates

    SciTech Connect (OSTI)

    Quereda, J. [Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, Madrid E-28049 (Spain); Castellanos-Gomez, A. [Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft (Netherlands); Agraït, N. [Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, Madrid E-28049 (Spain); Instituto Madrileño de Estudios Avanzados en Nanociencia, IMDEA-Nanociencia, E-28049 Madrid (Spain); Instituto de Ciencia de Materiales Nicolás Cabrera, Campus de Cantoblanco, E-28049 Madrid (Spain); Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid (Spain); Rubio-Bollinger, G., E-mail: gabino.rubio@uam.es [Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, Madrid E-28049 (Spain); Instituto de Ciencia de Materiales Nicolás Cabrera, Campus de Cantoblanco, E-28049 Madrid (Spain); Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid (Spain)

    2014-08-04T23:59:59.000Z

    We experimentally study the surface roughness and the lateral friction force in single-layer MoS{sub 2} crystals deposited on different substrates: SiO{sub 2}, mica, and hexagonal boron nitride (h-BN). Roughness and sliding friction measurements are performed by atomic force microscopy. We find a strong dependence of the MoS{sub 2} roughness on the underlying substrate material, being h-BN the substrate which better preserves the flatness of the MoS{sub 2} crystal. The lateral friction also lowers as the roughness decreases, and attains its lowest value for MoS{sub 2} flakes on h-BN substrates. However, it is still higher than for the surface of a bulk MoS{sub 2} crystal, which we attribute to the deformation of the flake due to competing tip-to-flake and flake-to-substrate interactions.

  15. ORIGINAL PAPER Geochemical Evolution of Great Salt Lake, Utah, USA

    E-Print Network [OSTI]

    , USA, is the largest saline lake in North America, and its brines are some of the most concentrated and mirabilite, have periodically modified lake-brine chemistry through density stratifi- cation in the north. These and other conditions have created brine differentiation, mixing, and fractional

  16. POLYGENETIC TOPOGRAPHY OF THE CASCADE RANGE, WASHINGTON STATE, USA

    E-Print Network [OSTI]

    -relief topography, 2) post-Miocene surface uplift of the range superimposed on pre-existing high-relief topographyPOLYGENETIC TOPOGRAPHY OF THE CASCADE RANGE, WASHINGTON STATE, USA SARA GRAN MITCHELL Range of Washington State by analyzing the topography, geology, and exhumation patterns across the range

  17. Hydrology and Geostatistics of a Vermont, USA Kettlehole Peatland

    E-Print Network [OSTI]

    Vermont, University of

    Hydrology and Geostatistics of a Vermont, USA Kettlehole Peatland Paula J. Mousera,*, W. Cully to hydrologic changes is imperative for successful conservation and remediation efforts. We studied a 1.25-ha Vermont kettlehole bog for one year (September 2001­October 2002) to identify hydrologic controls

  18. Npad ze zabijacky zskal UK lkask patent v USA

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Nápad ze zabijacky získal UK lékaský patent v USA Compiled 24.6.2014 16:28:18 by Document Globe ® 1 Americký patent na tepelný výmník pro rovnomrné chlazení a ohívání krve pi mimotlním obhu získal tým patent funguje? U soucasných pístroj pro náhradu funkce ledvin se zamezuje srázení krve v kapilárách

  19. GREEN ENERGY AND ELECTRIC VEHICLES. BMW GROUP TECHNOLOGYOFFICE USA.

    E-Print Network [OSTI]

    California at Davis, University of

    can still guarantee where my power's coming from." "The perfect model is buy an electric car, putGREEN ENERGY AND ELECTRIC VEHICLES. BMW GROUP TECHNOLOGYOFFICE USA. LT-Z-Z, OCTOBER 2012 #12;GREEN E, LT-Z-Z,OCT 2012 Page 2 BACKGROUND. Markets for green energy and electric vehicles can accelerate

  20. University of Tennessee, USA Pacific Northwest National Laboratory,

    E-Print Network [OSTI]

    Wang, Zhong L.

    energy conversion for sustainably powering of portable electronics. Nano Lett, 2012, 12: 6339­6346 10 Zhu Georgia Institute of Technology and Emory University, USA Royal Institute of Technology, Sweden-nanowire hybrid structure for energy scavenging. Nature, 2008, 451: 809­813 4 Xu S, Qin Y, Xu C, Wei YG, Yang RS

  1. September 6th , 2008, Kimmel Center, New York, USA.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    MFCA'08 September 6th , 2008, Kimmel Center, New York, USA. http://www.inria.fr/sophia/asclepios/events/MFCA Anatomy (MFCA) workshop is to foster the interactions between the mathematical community around shapes the very successful first edition of this workshop in 2006 (see http://www.inria.fr/sophia/asclepios/events/MFCA

  2. Press release For Immediate Release Seattle, USA. June 6, 2008

    E-Print Network [OSTI]

    and the high prices for wood pellets in Europe. The rapid expansion in global trade of biomass is likelyPress release ­ For Immediate Release Seattle, USA. June 6, 2008 Global trade of woody biomass has almost doubled in five years With the increasing demand for woody biomass, global trade of particularly

  3. BBA Electives: M&O Comparison Compiled 11/11/09

    E-Print Network [OSTI]

    Michigan, University of

    University ­ Marriott Organizational Development and Change Teams and Work Groups Human Resource Management Compensation Management Labor Relations and Conflict Management Staffing Organizations Motivation and Work MIT1 BBA Electives: M&O Comparison Compiled 11/11/09 University of Michigan ­ Ross School Management

  4. EIS-0475: Disposition of the Bannister Federal Complex, Kansas City, MO

    Broader source: Energy.gov [DOE]

    NNSA/DOE announces its intent to prepare an EIS for the disposition of the Bannister Federal Complex, Kansas City, MO. NNSA previously decided in a separate NEPA review (EA-1592) to relocate its operations from the Bannister Federal Complex to a newly constructed industrial campus eight miles from the current location.

  5. MoDPepInt: An interactive webserver for prediction of modular domain-peptide interactions

    E-Print Network [OSTI]

    Brendel, Volker

    MoDPepInt: An interactive webserver for prediction of modular domain-peptide interactions-Supervised Prediction of SH2-Peptide Interactions from Imbalanced High-Throughput Data PLoS One, 8(5), pp. e62732, 2013-peptide interaction prediction with an application to human SH3 domains Bioinformatics, 29(13), pp. i335-i343, 2013

  6. On the Higher-Order MoM-PO Electromagnetic Modeling of Vehicles

    E-Print Network [OSTI]

    Notaros, Branislav M.

    vehicles (cars, airplanes, helicopters, spacecraft, etc.). From the electromagnetic point of view and accurate higher-order, large-domain hybrid computational technique based on the method of moments (Mo the efficiency and accuracy of the hybrid higher-order computational technique and its advantages over

  7. Enriched Zn$^{100}$MoO$_4$ scintillating bolometers to search for $0 \

    E-Print Network [OSTI]

    Barabash, A S; Danevich, F A; Giuliani, A; Ivanov, I M; Makarov, E P; Mancuso, M; Marnieros, S; Nasonov, S G; Nones, C; Olivieri, E; Pessina, G; Poda, D V; Shlegel, V N; Tenconi, M; Tretyak, V I; Vasiliev, Ya V; Velazquez, M; Zhdankov, V N

    2014-01-01T23:59:59.000Z

    The LUMINEU project aims at performing a demonstrator underground experiment searching for the neutrinoless double beta decay of the isotope $^{100}$Mo embedded in zinc molybdate (ZnMoO$_4$) scintillating bolometers. In this context, a zinc molybdate crystal boule enriched in $^{100}$Mo to 99.5\\% with a mass of 171 g was grown for the first time by the low-thermal-gradient Czochralski technique. The production cycle provided a high yield (the crystal boule mass was 84\\% of initial charge) and an acceptable level -- around 4\\% -- of irrecoverable losses of the costy enriched material. Two crystals of 59 g and 63 g, obtained from the enriched boule, were tested aboveground at milli-Kelvin temperature as scintillating bolometers. They showed a high detection performance, equivalent to that of previously developed natural ZnMoO$_4$ detectors. These results pave the way to future sensitive searches based on the LUMINEU technology, capable to approach and explore the inverted hierarchy region of the neutrino mass p...

  8. Molecular Adsorption to LiMo3Se3 Nanowire Film Chemiresistors

    E-Print Network [OSTI]

    Chiang, Shirley

    Molecular Adsorption to LiMo3Se3 Nanowire Film Chemiresistors Xiubin Qi, Frank E. Osterloh,*, S. A that the temporal and steady-state resistance changes of the films depend on the time following the adsorption and on the number of molecules that adsorb to the nanowire films at a given pressure. The adsorption ability

  9. Investigation of Double Beta Decay of 100Mo to Excited States of 100Ru

    SciTech Connect (OSTI)

    A. J. Caffrey; The NEMO-3 Collaboration

    2014-05-01T23:59:59.000Z

    Double beta decay of 100Mo to the excited states of daughter nuclei has been studied using a 600 cm3 low-background HPGe detector and an external source consisting of 2588 g of 97.5% enriched metallic 100Mo, which was formerly inside the NEMO-3 detector and used for the NEMO-3 measurements of 100Mo. The half-life for the two-neutrino double beta decay of 100Mo to the excited View the MathML source state in 100Ru is measured to be T1/2=[7.5±0.6(stat)±0.6(syst)]·1020 yr. For other (0?+2?) transitions to the View the MathML source, View the MathML source, View the MathML source, View the MathML source and View the MathML source levels in 100Ru, limits are obtained at the level of ~(0.25–1.1)·1022 yr.

  10. Magnetic cluster excitations in the antiferromagnetic phase of a-MnMoO4 

    E-Print Network [OSTI]

    Ochsenbein, Stefan T; Chaboussant, Gregory; Sieber, Andreas; Gudel, Hans U; Janssen, Stefan; Furrer, Albert; Attfield, J. Paul

    2003-01-01T23:59:59.000Z

    The tetramer-based compound a-MnMoO4 exhibits four prominent peaks in the inelastic neutron scattering (INS) spectrum between 0.5 and 2.0 meV below 10 K. They are assigned to magnetic excitations of the (Mn2+)4 rhombus ...

  11. Irradiation Performance of U-Mo Alloy Based ‘Monolithic’ Plate-Type Fuel – Design Selection

    SciTech Connect (OSTI)

    A. B. Robinson; G. S. Chang; D. D. Keiser, Jr.; D. M. Wachs; D. L. Porter

    2009-08-01T23:59:59.000Z

    A down-selection process has been applied to the U-Mo fuel alloy based monolithic plate fuel design, supported by irradiation testing of small fuel plates containing various design parameters. The irradiation testing provided data on fuel performance issues such as swelling, fuel-cladding interaction (interdiffusion), blister formation at elevated temperatures, and fuel/cladding bond quality and effectiveness. U-10Mo (wt%) was selected as the fuel alloy of choice, accepting a somewhat lower uranium density for the benefits of phase stability. U-7Mo could be used, with a barrier, where the trade-off for uranium density is critical to nuclear performance. A zirconium foil barrier between fuel and cladding was chosen to provide a predictable, well-bonded, fuel-cladding interface, allowing little or no fuel-cladding interaction. The fuel plate testing conducted to inform this selection was based on the use of U-10Mo foils fabricated by hot co-rolling with a Zr foil. The foils were subsequently bonded to Al-6061 cladding by hot isostatic pressing or friction stir bonding.

  12. Lithium Intercalation in Graphene/MoS2 Composites: First-Principles Insights

    E-Print Network [OSTI]

    Shao, Xiji; Pang, Rui; Shi, Xingqiang

    2015-01-01T23:59:59.000Z

    As a storage material for Li-ion batteries, graphene/molybdenum disulfide (Gr/MoS2) composites have been intensively studied in experiments. But the relevant theoretical works from first-principles are lacking. In the current work, van-der-Waals-corrected density functional theory calculations are performed to investigate the interaction of Li in Gr/MoS2 composites. Three interesting features are revealed for the intercalated Gr/Li(n)/MoS2 composites (n = 1 to 9). One is the reason for large Li storage capacity of Gr/MoS2: due to the binding energies per Li atom increase with the increasing number of intercalated Li atoms. Secondly, the band gap opening of Gr is found, and the band gap is enlarged with the increasing number of intercalated Li atoms, up to 160 meV with nine Li; hence these results suggest an efficient way to tune the band gap of graphene. Thirdly, the Dirac cone of Gr always preserve for different number of ionic bonded Li atoms.

  13. This is MoFo. Scientific/Technical Patent Analysts/Agents

    E-Print Network [OSTI]

    Straight, Aaron

    This is MoFo. Scientific/Technical Patent Analysts/Agents (Los Angeles, CA; McLean, VA; Palo Alto level patent analysts/agents for our Los Angeles, Palo Alto, San Diego and San Francisco offices of business strategies. Patent analysts/agents participate in domestic and foreign patent prosecution

  14. Safety Analysis Using Coloured Petri Nets Seung Mo Cho, Hyoung Seok Hong, and Sung Deok Cha

    E-Print Network [OSTI]

    as an example. 1. Introduction Software control in safety-critical systems such as aerospace, military, nuclearSafety Analysis Using Coloured Petri Nets Seung Mo Cho, Hyoung Seok Hong, and Sung Deok Cha Department of Computer Science Korea Advanced Institute of Science and Technology (KAIST) 373-1, Kusong

  15. A Network Model and Computational Approach Mo Supply Chain for Nuclear Medicine

    E-Print Network [OSTI]

    Nagurney, Anna

    A Network Model and Computational Approach for the 99 Mo Supply Chain for Nuclear Medicine Ladimer S. Nagurney1 and Anna Nagurney2 1Department of Electrical and Computer Engineering University University of Massachusetts - Amherst, Massachusetts 01003 Fall 2011 Joint Meeting Of The New England

  16. ZnMoO4: a promising bolometer for neutrinoless double beta decay searches

    E-Print Network [OSTI]

    J. W. Beeman; F. Bellini; S. Capelli; L. Cardani; N. Casali; I. Dafinei; S. Di Domizio; F. Ferroni; E. N. Galashov; L. Gironi; F. Orio; L. Pattavina; G. Pessina; G. Piperno; S. Pirro; V. N. Shlegel; Ya. V. Vasilyev; C. Tomei; M. Vignati

    2012-02-01T23:59:59.000Z

    We investigate the performances of two ZnMoO4 scintillating crystals operated as bolometers, in view of a next generation experiment to search the neutrinoless double beta decay of Mo-100. We present the results of the alpha vs beta/gamma discrimination, obtained through the scintillation light as well as through the study of the shape of the thermal signal alone. The discrimination capability obtained at the 2615 keV line of Tl-208 is 8 sigma, using the heat-light scatter plot, while it exceeds 20 sigma using the shape of the thermal pulse alone. The achieved FWHM energy resolution ranges from 2.4 keV (at 238 keV) to 5.7 keV (at 2615 keV). The internal radioactive contaminations of the ZnMoO4 crystals were evaluated through a 407 hours background measurement. The obtained limit is < 32 microBq/kg for Th-228 and Ra-226. These values were used for a Monte Carlo simulation aimed at evaluating the achievable background level of a possible, future array of enriched ZnMoO4 crystals.

  17. Interlayer growth in Mo/B{sub 4}C multilayered structures upon thermal annealing

    SciTech Connect (OSTI)

    Nyabero, S. L.; Kruijs, R. W. E. van de; Yakshin, A. E.; Zoethout, E.; Bosgra, J.; Loch, R. A. [FOM Dutch Institute for Fundamental Energy Research (DIFFER), P.O. Box 1207, 3430 BE Nieuwegein (Netherlands); Blanckenhagen, G. von [Carl Zeiss SMT GmbH, Rudolf-Eber-Strasse 2, 73447 Oberkochen (Germany); Bijkerk, F. [FOM Dutch Institute for Fundamental Energy Research (DIFFER), P.O. Box 1207, 3430 BE Nieuwegein (Netherlands); MESA Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede (Netherlands)

    2013-04-14T23:59:59.000Z

    Both multilayer period thickness expansion and compaction were observed in Mo/B{sub 4}C multilayers upon annealing, and the physical causes for this were explored in detail. Using in situ time-dependent grazing incidence X-ray reflectometry, period changes down to picometer-scale were resolved. It was shown that the changes depend on the thickness of the B{sub 4}C layers, annealing temperature, and annealing time. Although strong stress relaxation during annealing was observed, it was excluded as a cause for period expansion. Auger electron spectroscopy and wide angle X-ray diffraction measurements revealed the growth of interlayers, with associated period changes influenced by the supply of B and C atoms to the growing compound interlayers. For multilayers with a Mo thickness of 3 nm, two regimes were recognized, depending on the deposited B{sub 4}C thickness: in multilayers with B{sub 4}C {<=} 1.5 nm, the supply of additional Mo into the already formed MoB{sub x}C{sub y} interlayer was dominant and led to densification, resulting in period compaction. For multilayers with B{sub 4}C {>=} 2 nm, the B and C enrichment of interlayers formed low density compounds and yielded period expansion.

  18. TURBO EQUALIZATIONWITH AN UNKNOWN CHANNEL SeongwookSong', Andrew C. Singer2,Koeng-MoSun?

    E-Print Network [OSTI]

    Singer, Andrew C

    TURBO EQUALIZATIONWITH AN UNKNOWN CHANNEL SeongwookSong', Andrew C. Singer2,Koeng-MoSun? l t 2Univ the method of turbo equalization originally de- veloped by Douillard, et al. [3]. In its original form, turbo and without training data. The resultingjoint channeland data estimator is shown to outperform standard turbo

  19. TheElectronMicroscopyCore(EMC) UniversityofMissouriColumbia,MO65211

    E-Print Network [OSTI]

    Noble, James S.

    TheElectronMicroscopyCore(EMC) UniversityofMissouriColumbia,MO65211 The. The EMC houses two field emission SEM's, a Hitachi cold-field SEM (S-4700) and a FEI thermal FE SEM imaging and chemical analysis from their SEM/EDS systems. AdditionalSupportby: FormoreInformationortoregistergoto:http://www.emc

  20. RobeRt & LauRie bean taishoff inciting a MoRe incLusive

    E-Print Network [OSTI]

    McConnell, Terry

    RobeRt & LauRie bean taishoff inciting a MoRe incLusive coLLege caMpus syRacuse univeRsity scho. Thanks to her expertise--and the generosity of Robert Taishoff '86 and Laurie Bean Taishoff '84--the

  1. Incremental Development for Automotive Software in AutoMoDe Andreas Bauer1

    E-Print Network [OSTI]

    Braun, Peter

    Incremental Development for Automotive Software in AutoMoDe Andreas Bauer1 Jan Romberg1 Bernhard Validas AG 3 ETAS GmbH 4 PMSF IT Consulting 5 Robert Bosch GmbH Abstract Automotive software development. To facilitate the design and evolution of heterogeneous automotive software, suitable views for each level

  2. acid-assisted phosphine catalysis: Topics by E-print Network

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

    Washington University School of Medicine, 660 S. Euclid Avenue, St. Louis, MO 63110 Marshall, Garland R. 37 Catalytic Hydrogenolysis of Biphenylene with Platinum, Palladium,...

  3. METAL FOILS FOR DIRECT APPLICATION OF ABSORBER COATINGS ON SOLAR COLLECTORS

    E-Print Network [OSTI]

    Lampert, Carl M.

    2011-01-01T23:59:59.000Z

    for Depositing Solar Collector Coatings". Proceedings of theSymposium on Coatings for Solar Collectors, . Louis,'MO,OF ABSORBER COATINGS ON SOLAR COLLECTORS Carl M. Lampert

  4. METAL FOILS FOR DIRECT APPLICATION OF ABSORBER COATINGS ON SOLAR COLLECTORS

    E-Print Network [OSTI]

    Lampert, Carl M.

    2011-01-01T23:59:59.000Z

    of the AES Coatings for Solar Collectors Symposium. Atlanta.Sputtering for Depositing Solar Collector Coatings".Symposium on Coatings for Solar Collectors, . Louis,'MO,

  5. Interaction Layer Characteristics in U-xMo Dispersion/Monolithic Fuels

    SciTech Connect (OSTI)

    D. L. Porter

    2010-11-01T23:59:59.000Z

    Published data concerning the interaction layer (IL) formed between U-xMo fuel alloy and aluminum (Al)-based matrix or cladding materials was reviewed, including the effects of silicon (Si) content in the matrix/cladding, molybdenum (Mo) content in the fuel, pre irradiation thermal treatments, irradiation, and test temperature. The review revealed that tests conducted in the laboratory produce results different from those conducted in an irradiation environment. However, the laboratory testing relates well to thermal treatments performed prior to irradiation and helps in understanding the effects that these pre irradiation treatments have on in reactor performance. A pre-formed, Si-enriched IL seems to be important in delaying the onset of rapid growth of fission gas bubbles at low irradaiiation temperatures. Several other conclusions can be drawn: 1. An IL with phases akin to UAl3 is desired for optimum fuel performance, but at low temperatures, and especially in an irradiation atmosphere, the desired (Al+Si)/(U+Mo) ratio of three is difficult to produce. When the fuel operating temperature is low, it is important to create a pre-irradiation IL, enriched in Si. This pre-formed IL is relatively stable, performs well in terms of swelling resistance, and prevents rapid IL growth during irradiation. 2. At higher operating temperatures (>150–170°C), IL formation in reactor may not be so dependent on pre-irradiation IL formation, especially at high burnup; a pre-fabricated IL seems to be less stable at high burnup and high operating temperature. Moreover, the (Al+SI)/(U+Mo) ratio of three occurs more often at higher temperature. For these two reasons, it is important at high operating temperature to also have a matrix with significant Si content to create an IL in reactor with the right characteristics. 3. Out-of-reactor testing seems to indicate that Si in the matrix material is required in some concentration (2%, 5%, ?) to provide for a thin, Si-enriched IL formed before irradiation of a fuel plate. It ensures that the IL contains beneficial phases, or prevents formation of some known to promote poor fuel performance. Significant progress has been made in determining the desired characteristics of the IL. 4. The use of a fuel with stable gamma phase appears to allow more predictable performance regarding both a beneficial pre-irradiation layer, and the fuel performance (low swelling) to high burnup. Destabilization of the gamma phase may create problems with IL breakaway growth. 5. A theory whereby prevention of the U6Mo4Al43 complex phase in interaction layers formed during fabrication may be a key to good irradiation performance. Si additions to the matrix allow for solubility of Mo in the desirable (U,Mo)(Al,Si)3 or perhaps (U,Mo)(Al,Si)4 phase, helping to prevent formation of the complex phase. Keeping alloy Mo content as low as possible may also help so long as decomposition does not occur in fabrication, forcing Mo into the interaction layer. This theory may explain a number of apparent anomalies observed in testing results. 6. More work is needed in order to prescribe the conditions to best produce a beneficial IL. Another necessity is a better understanding of any correlation between beneficial characteristics of the pre-fabricated IL and the irradiation conditions to which it will be subjected.

  6. First-principles study of the interfacial adhesion between SiO2 and MoSi2 D. E. Jiang1 and Emily A. Carter2

    E-Print Network [OSTI]

    Carter, Emily A.

    the energy efficiency and per- formance of gas turbine engines requires structural materials able to operate on MoSi2, a potential high-temperature coating material for metals. This silica scale protects MoSi2 the potential of MoSi2 as a high-temperature structural material and coating. DOI: 10.1103/PhysRevB.72

  7. The carburization of transition metal molybdates (MxMoO?, M= Cu, Ni or Co) and the generation of highly active metal/carbide catalysts for CO? hydrogenation

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

    Rodriguez, Jose A.; Xu, Wenqian; Ramirez, Pedro J.; Stachiola, Dario; Brito, Joaquin L.

    2015-05-06T23:59:59.000Z

    A new approach has been tested for the preparation of metal/Mo?C catalysts using mixed-metal oxide molybdates as precursors. Synchrotron-based in situ time-resolved X-ray diffraction was used to study the reduction and carburization processes of Cu?(MoO?)?(OH)?, a-NiMoO? and CoMoO?•nH?O by thermal treatment under mixtures of hydrogen and methane. In all cases, the final product was ?-Mo?C and a metal phase (Cu, Ni, or Co), but the transition sequence varied with the different metals, and it could be related to the reduction potential of the Cu²?, Ni²? and Co²? cations inside each molybdate. The synthesized Cu/Mo?C, Ni/Mo?C and Co/Mo?C catalysts were highlymore »active for the hydrogenation of CO?. The metal/Mo?C systems exhibited large variations in the selectivity towards methanol, methane and CnH?n?? (n > 2) hydrocarbons depending on the nature of the supported metal and its ability to cleave C-O bonds. Cu/Mo?C displayed a high selectivity for CO and methanol production. Ni/Mo?C and Co/Mo?C were the most active catalysts for the activation and full decomposition of CO?, showing high selectivity for the production of methane (Ni case) and CnH?n?? (n > 2) hydrocarbons (Co case).« less

  8. METALS AND MATERIALS International, Vol. 13, No. 6 (2007), pp. 463~468 Comparative Study on Mechanical Properties of MoSiN Multilayer Films

    E-Print Network [OSTI]

    Boo, Jin-Hyo

    2007-01-01T23:59:59.000Z

    -grown MoSiN thin films, argon and nitrogen plasmas ignited by RF and pulse DC under vacuum conditions were) and Ti-covered Si(100) substrates, as well as silicon nitride substrates. Titanium and its alloy have of a MoSi2 source in the presence of nitrogen plasma and MoSiN films have shown good thermal stability

  9. The carburization of transition metal molybdates (MxMoO?, M= Cu, Ni or Co) and the generation of highly active metal/carbide catalysts for CO? hydrogenation

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

    Rodriguez, Jose A. [Brookhaven National Lab. (BNL), Upton, NY (United States); Xu, Wenqian [Brookhaven National Lab. (BNL), Upton, NY (United States); Ramirez, Pedro J. [Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. Central De Venezuela, Caracas (Venesuela); Stachiola, Dario [Brookhaven National Lab. (BNL), Upton, NY (United States); Brito, Joaquin L. [Inst. Venezolano de Investigaciones Cientificas, Caracas (Venezuela)

    2015-05-06T23:59:59.000Z

    A new approach has been tested for the preparation of metal/Mo?C catalysts using mixed-metal oxide molybdates as precursors. Synchrotron-based in situ time-resolved X-ray diffraction was used to study the reduction and carburization processes of Cu?(MoO?)?(OH)?, a-NiMoO? and CoMoO?•nH?O by thermal treatment under mixtures of hydrogen and methane. In all cases, the final product was ?-Mo?C and a metal phase (Cu, Ni, or Co), but the transition sequence varied with the different metals, and it could be related to the reduction potential of the Cu²?, Ni²? and Co²? cations inside each molybdate. The synthesized Cu/Mo?C, Ni/Mo?C and Co/Mo?C catalysts were highly active for the hydrogenation of CO?. The metal/Mo?C systems exhibited large variations in the selectivity towards methanol, methane and CnH?n?? (n > 2) hydrocarbons depending on the nature of the supported metal and its ability to cleave C-O bonds. Cu/Mo?C displayed a high selectivity for CO and methanol production. Ni/Mo?C and Co/Mo?C were the most active catalysts for the activation and full decomposition of CO?, showing high selectivity for the production of methane (Ni case) and CnH?n?? (n > 2) hydrocarbons (Co case).

  10. Processing, Microstructure and Creep Behavior of Mo-Si-B-Based Intermetallic Alloys for Very High Temperature Structural Applications

    SciTech Connect (OSTI)

    Vijay Vasudevan

    2008-03-31T23:59:59.000Z

    This research project is concerned with developing a fundamental understanding of the effects of processing and microstructure on the creep behavior of refractory intermetallic alloys based on the Mo-Si-B system. In the first part of this project, the compression creep behavior of a Mo-8.9Si-7.71B (in at.%) alloy, at 1100 and 1200 C was studied, whereas in the second part of the project, the constant strain rate compression behavior at 1200, 1300 and 1400 C of a nominally Mo-20Si-10B (in at.%) alloy, processed such as to yield five different {alpha}-Mo volume fractions ranging from 5 to 46%, was studied. In order to determine the deformation and damage mechanisms and rationalize the creep/high temperature deformation data and parameters, the microstructure of both undeformed and deformed samples was characterized in detail using x-ray diffraction, scanning electron microscopy (SEM) with back scattered electron imaging (BSE) and energy dispersive x-ray spectroscopy (EDS), electron back scattered diffraction (EBSD)/orientation electron microscopy in the SEM and transmission electron microscopy (TEM). The microstructure of both alloys was three-phase, being composed of {alpha}-Mo, Mo{sub 3}Si and T2-Mo{sub 5}SiB{sub 2} phases. The values of stress exponents and activation energies, and their dependence on microstructure were determined. The data suggested the operation of both dislocation as well as diffusional mechanisms, depending on alloy, test temperature, stress level and microstructure. Microstructural observations of post-crept/deformed samples indicated the presence of many voids in the {alpha}-Mo grains and few cracks in the intermetallic particles and along their interfaces with the {alpha}-Mo matrix. TEM observations revealed the presence of recrystallized {alpha}-Mo grains and sub-grain boundaries composed of dislocation arrays within the grains (in Mo-8.9Si-7.71B) or fine sub-grains with a high density of b = 1/2<111> dislocations (in Mo-20Si-10B), which are consistent with the values of the respective stress exponents and activation energies that were obtained and provide confirmatory evidence for the operation of diffusional (former alloy) or dislocation (latter alloy) creep mechanisms. In contrast, the intermetallic phases contained very few dislocations, but many cracks. The relative contributions of the {alpha}-Mo and the intermetallic particles to the overall deformation process, including their individual and collective dependence on temperature and strain rate are discussed in light of the present results and those from previous reports.

  11. Modeling of Interaction Layer Growth Between U-Mo Particles and an Al Matrix

    SciTech Connect (OSTI)

    Yeon Soo Kim; G. L. Hofman; Ho Jin Ryu; Jong Man Park; A. B. Robinson; D. M. Wachs

    2013-12-01T23:59:59.000Z

    Interaction layer growth between U-Mo alloy fuel particles and Al in a dispersion fuel is a concern due to the volume expansion and other unfavorable irradiation behavior of the interaction product. To reduce interaction layer (IL) growth, a small amount of Si is added to the Al. As a result, IL growth is affected by the Si content in the Al matrix. In order to predict IL growth during fabrication and irradiation, empirical models were developed. For IL growth prediction during fabrication and any follow-on heating process before irradiation, out-of-pile heating test data were used to develop kinetic correlations. Two out-of-pile correlations, one for the pure Al matrix and the other for the Al matrix with Si addition, respectively, were developed, which are Arrhenius equations that include temperature and time. For IL growth predictions during irradiation, the out-of-pile correlations were modified to include a fission-rate term to consider fission enhanced diffusion, and multiplication factors to incorporate the Si addition effect and the effect of the Mo content. The in-pile correlation is applicable for a pure Al matrix and an Al matrix with the Si content up to 8 wt%, for fuel temperatures up to 200 degrees C, and for Mo content in the range of 6 – 10wt%. In order to cover these ranges, in-pile data were included in modeling from various tests, such as the US RERTR-4, -5, -6, -7 and -9 tests and Korea’s KOMO-4 test, that were designed to systematically examine the effects of the fission rate, temperature, Si content in Al matrix, and Mo content in U-Mo particles. A model converting the IL thickness to the IL volume fraction in the meat was also developed.

  12. Novel Processing of mo-si-b Intermetallics for improved efficiency of power systems

    SciTech Connect (OSTI)

    M.J. Kramer; O. Degirmen; A.J. Thom; M. Akinc

    2004-09-30T23:59:59.000Z

    Multiphase composite alloys based on the Mo-Si-B system are candidate materials for ultra-high temperature applications. In non load-bearing applications such as thermal barrier coatings or heat exchangers in fossil fuel burners, these materials may be ideally suited. Alloys based on the Mo{sub 5}Si{sub 3}B{sub x} phase (Tl phase) possess excellent oxidation resistance to at least 1600 C in synthetic air atmospheres. However, the ability of Tl-based alloys to resist aggressive combustion environments has not yet been determined. The present work seeks to investigate the resistance of these Mo-Si-B alloys to simulated combustion atmospheres. Material was pre-alloyed by combustion synthesis, and samples for testing were prepared by classic powder metallurgical processing techniques. Precursor material synthesized by self-heating-synthesis was sintered to densities exceeding 98% in an argon atmosphere at 1800 C. The approximate phase assemblage of the material was 57% Tl, 29% MoB, 14% MoSi{sub 2} (wt%). The alloy was oxidized from 1000-1100 C in flowing air containing water vapor at 18 Torr. At 1000 C the material achieved a steady state mass loss, and at 1100 C the material undergoes a steady state mass gain. The oxidation rate of these alloys in this temperature regime was accelerated by the presence of water vapor compared to oxidation in dry air. The results of microstructural analysis of the tested alloys will be discussed. Techniques and preliminary results for fabricating near-net-shaped parts will also be presented.

  13. Bear Head LNG Corporation and Bear Head LNG (USA), LLC - FE Dkt...

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

    Bear Head LNG Corporation and Bear Head LNG (USA), LLC - FE Dkt. No. - 15-33-LNG Bear Head LNG Corporation and Bear Head LNG (USA), LLC - FE Dkt. No. - 15-33-LNG The Office of...

  14. SEMI-ANNUAL REPORTS FOR GASFIN DEVELOPMENT USA, LLC - FE DKT...

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

    GASFIN DEVELOPMENT USA, LLC - FE DKT. NO. 13-06-LNG - ORDER 3253 SEMI-ANNUAL REPORTS FOR GASFIN DEVELOPMENT USA, LLC - FE DKT. NO. 13-06-LNG - ORDER 3253 April 2013 October 2013...

  15. SEMI-ANNUAL REPORTS FOR PIERIDAE ENERGY (USA), LTD - DKT. NO...

    Office of Environmental Management (EM)

    PIERIDAE ENERGY (USA), LTD - DKT. NO. 14-179-LNG - ORDER 3639 SEMI-ANNUAL REPORTS FOR PIERIDAE ENERGY (USA), LTD - DKT. NO. 14-179-LNG - ORDER 3639 No Reports Received More...

  16. Eni USA Gas Marketing LLC- FE Dkt. No.- 15-13-LNG

    Broader source: Energy.gov [DOE]

    The Office of Fossil Energy gives notice of receipt of an Application filed January 21, 2015 by Eni USA Gas Marketing LLC (ENI USA Gas Marketing), requesting blanket authorization to export...

  17. Alternative community states maintained by fire in the Klamath Mountains, USA

    E-Print Network [OSTI]

    Moritz, Max A.

    and Policy, 84 Fourth Street, Ashland, OR 97520, USA Summary 1. The earliest examples of alternative of Biology, Southern Oregon Univer- sity, Ashland, OR, USA. Journal of Ecology 2010, 98, 96­105 doi: 10

  18. FUJIFILM Hunt Chemicals U.S.A. Achieves Compressed Air System...

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

    FUJIFILM Hunt Chemicals U.S.A. Achieves Compressed Air System Energy-Reduction Goals with a Three-Phased Strategy FUJIFILM Hunt Chemicals U.S.A. Achieves Compressed Air System...

  19. U.S. Department of Energy Awards a Contract to USA Repository...

    Energy Savers [EERE]

    a Contract to USA Repository Services for Management and Operating Contractor Support for the Yucca Mountain Project U.S. Department of Energy Awards a Contract to USA Repository...

  20. Advanced Li-Ion Polymer Battery Cell Manufacturing Plant in USA...

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

    Li-Ion Polymer Battery Cell Manufacturing Plant in USA Advanced Li-Ion Polymer Battery Cell Manufacturing Plant in USA 2012 DOE Hydrogen and Fuel Cells Program and Vehicle...

  1. Girl Scouts USA CEO visits ORNL to discuss STEM programs | ornl...

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

    -4165 Girl Scouts USA CEO visits ORNL to discuss STEM programs Anna Maria Chavez, middle, CEO of the Girl Scouts USA, visits the Center for Computational Sciences Jan. 30 with two...

  2. Where does all the data come from? Geoffrey Fox (Indiana University, USA), Tony Hey (Microsoft Research, USA) and Anne Trefethen

    E-Print Network [OSTI]

    Research, USA) and Anne Trefethen (Oxford University, UK) 1. Introduction The data deluge [1] is all around of the field with many petabytes of data derived from advanced instruments. The deluge and its impact focus on some examples of the scientific data deluge. We anticipate that some of the tools, techniques

  3. MoS{sub 2}@ZnO nano-heterojunctions with enhanced photocatalysis and field emission properties

    SciTech Connect (OSTI)

    Tan, Ying-Hua; Yu, Ke, E-mail: yk5188@263.net; Li, Jin-Zhu; Fu, Hao; Zhu, Zi-Qiang [Key Laboratory of Polar Materials and Devices (Ministry of Education of China), Department of Electronic Engineering, East China Normal University, Shanghai 200241 (China)

    2014-08-14T23:59:59.000Z

    The molybdenum disulfide (MoS{sub 2})@ZnO nano-heterojunctions were successfully fabricated through a facile three-step synthetic process: prefabrication of the ZnO nanoparticles, the synthesis of MoS{sub 2} nanoflowers, and the fabrication of MoS{sub 2}@ZnO heterojunctions, in which ZnO nanoparticles were uniformly self-assembled on the MoS{sub 2} nanoflowers by utilizing polyethyleneimine as a binding agent. The photocatalytic activities of the composite samples were evaluated by monitoring the photodegradation of methylene blue (MB). Compared with pure MoS{sub 2} nanoflowers, the composites show higher adsorption capability in dark and better photocatalytic efficiency due to the increased specific surface area and improved electron-hole pair separation. After irradiation for 100?min, the remaining MB in solution is about 7.3%. Moreover, the MoS{sub 2}@ZnO heterojunctions possess enhanced field emission properties with lower turn-on field of 3.08?V ?m{sup ?1}and lower threshold field of 6.9?V ?m{sup ?1} relative to pure MoS{sub 2} with turn-on field of 3.65?V ?m{sup ?1} and threshold field of 9.03?V ?m{sup ?1}.

  4. Chemical interaction of B{sub 4}C, B, and C with Mo/Si layered structures

    SciTech Connect (OSTI)

    Rooij-Lohmann, V. I. T. A. de; Veldhuizen, L. W.; Zoethout, E.; Yakshin, A. E.; Kruijs, R. W. E. van de [FOM Institute for Plasma Physics Rijnhuizen, P.O. Box 1207, 3430 BE Nieuwegein (Netherlands); Thijsse, B. J. [Department of Materials Science and Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft (Netherlands); Gorgoi, M.; Schaefers, F. [Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH, BESSY II, Albert-Einstein Strasse 15, 12489 Berlin (Germany); Bijkerk, F. [FOM Institute for Plasma Physics Rijnhuizen, P.O. Box 1207, 3430 BE Nieuwegein (Netherlands); MESA Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede (Netherlands)

    2010-11-15T23:59:59.000Z

    To enhance the thermal stability, B{sub 4}C diffusion barrier layers are often added to Mo/Si multilayer structures for extreme ultraviolet optics. Knowledge about the chemical interaction between B{sub 4}C and Mo or Si, however is largely lacking. Therefore, the chemical processes during annealing up to 600 deg. C of a Mo/B{sub 4}C/Si layered structure have been investigated in situ with hard x-ray photoelectron spectroscopy and ex situ with depth profiling x-ray photoelectron spectroscopy. Mo/B/Si and Mo/C/Si structures have also been analyzed as reference systems. The chemical processes in these systems have been identified, with two stages being distinguished. In the first stage, B and C diffuse and react predominantly with Mo. MoSi{sub x} forms in the second stage. If the diffusion barrier consists of C or B{sub 4}C, a compound forms that is stable up to the maximum probed temperature and annealing time. We suggest that the diffusion barrier function of B{sub 4}C interlayers as reported in literature can be caused by the stability of the formed compound, rather than by the stability of B{sub 4}C itself.

  5. International Electric Propulsion Conference, The George Washington University, USA October 6 10, 2013

    E-Print Network [OSTI]

    Walker, Mitchell

    1 The 33rd International Electric Propulsion Conference, The George Washington University, USA Electric Propulsion Conference, The George Washington University · Washington, D.C. · USA October 6 ­ 10.t.yim@nasa.gov. #12;2 The 33rd International Electric Propulsion Conference, The George Washington University, USA

  6. The 33st International Electric Propulsion Conference, The George Washington University, USA October 6 10, 2013

    E-Print Network [OSTI]

    Walker, Mitchell

    The 33st International Electric Propulsion Conference, The George Washington University, USA, 30332, USA Abstract: Accurate measurement of ion charge flux in the plume of spacecraft electric.walker@ae.gatech.edu #12;The 33st International Electric Propulsion Conference, The George Washington University, USA

  7. Epitaxial growth of few-layer MoS2(0001) on FeS2{100}

    E-Print Network [OSTI]

    Liu, T.; Temprano, I.; King, D. A.; Driver, S. M.; Jenkins, S. J.

    2014-11-13T23:59:59.000Z

    ) or self-assembled monolayers have already shown promise in delivering high quality graphene.8 Few-layer MoS2 is most commonly obtained by top-down methods such as lithium intercalation, micro mechanical exfoliation, or liquid-phase exfoliation.2 Attempts... trilayers may be terminated by complete S layers, leading to S–Fe–S–S–Mo–S layering; in this scenario, the epitaxy is driven simply by van der Waals interactions between the layers. In principle, sourcing the S atoms in the MoS2 layer from the bulk FeS2...

  8. Photoresponse properties of large-area MoS{sub 2} atomic layer synthesized by vapor phase deposition

    SciTech Connect (OSTI)

    Luo, Siwei; Qi, Xiang, E-mail: xqi@xtu.edu.cn, E-mail: jxzhong@xtu.edu.cn; Ren, Long; Hao, Guolin; Fan, Yinping; Liu, Yundan; Han, Weijia; Zang, Chen; Li, Jun; Zhong, Jianxin, E-mail: xqi@xtu.edu.cn, E-mail: jxzhong@xtu.edu.cn [Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, People's Republic of China Laboratory for Quantum Engineering and Micro-Nano Energy Technology, and Faculty of Materials and Optoelectronic Physics, Xiangtan University, Hunan 411105 (China)

    2014-10-28T23:59:59.000Z

    Photoresponse properties of a large area MoS{sub 2} atomic layer synthesized by vapor phase deposition method without any catalyst are studied. Scanning electron microscopy, atomic force microscopy, Raman spectrum, and photoluminescence spectrum characterizations confirm that the two-dimensional microstructures of MoS{sub 2} atomic layer are of high quality. Photoelectrical results indicate that the as-prepared MoS{sub 2} devices have an excellent sensitivity and a good reproducibility as a photodetector, which is proposed to be ascribed to the potential-assisted charge separation mechanism.

  9. Structure of Co-Mo/UPSILON-Al/sub 7/O/sub 3/ catalysts and relationship to HDS and hydrogenation activity. [Hydrodesulfurization (HDS)

    SciTech Connect (OSTI)

    Bennet, B.A. (Imperial Coll., London, England); Chadwick, D.; Jawahery, A.R.; Breysse, M.; Vrinat, M.

    1982-09-01T23:59:59.000Z

    From Mossbauer spectroscopy studies of catalysts of typical industrial compositions and activity measurements it was shown that catalysts containing the ''Co-Mo-S'' phase have relatively higher hydrodesulfurization (HDS) activities. It was also found that the use of Co in the first impregnation step favored the formation of Co/sub 9/S/sub 8/ (in addition to Co in alumina), while the reverse impregnation order produced mainly the ''Co-Mo-S'' phase. Avoiding Co/sub 3/O/sub 4/ formation in the oxide precursor was important for the formation of the ''Co-Mo-S'' phase and this was achieved by the impregnation of Mo before Co. There was also evidence that when Co was used in the second impregnation step, there was significant Mo, Co interaction. This interaction my produce a CoMo surface phase which is disordered and well dispersed and sulfides to the ''Co-Mo-S'' phase. (JMT)

  10. AMoRE: Collaboration for searches for the neutrinoless double-beta decay of the isotope of {sup 100}Mo with the aid of {sup 40}Ca{sup 100}MoO{sub 4} as a cryogenic scintillation detector

    SciTech Connect (OSTI)

    Khanbekov, N. D., E-mail: xanbekov@gmail.com [Institute of Theoretical and Experimental Physics (Russian Federation)

    2013-09-15T23:59:59.000Z

    The AMoRE (Advanced Mo based Rare process Experiment) Collaboration is planning to employ {sup 40}Ca{sup 100}MoO{sub 4} single crystals as a cryogenic Scintillation detector for studying the neutrinoless double-beta decay of the isotope {sup 100}Mo. A simultaneous readout of phonon and scintillation signals is performed in order to suppress the intrinsic background. The planned sensitivity of the experiment that would employ 100 kg of {sup 40}Ca{sup 100}MoO{sub 4} over five years of data accumulation would be T{sub 1/2}{sup 0{nu}} = 3 Multiplication-Sign 10{sup 26} yr, which corresponds to values of the effective Majorana neutrino mass in the range of Left-Pointing-Angle-Bracket m{sub {nu}} Right-Pointing-Angle-Bracket {approx} 0.02-0.06 eV.

  11. Hydrocarbon Seeps of the Mesozoic Great Valley Group Forearc Strata and Franciscan Complex, Northern and Central California, U.S.A.

    E-Print Network [OSTI]

    Keenan, Kristin Euphrat

    2010-01-01T23:59:59.000Z

    Washington State, USA. Sedimentology Peckmann, J. , C. T. S.Washington State, USA. Sedimentology Peckmann, J. , J. L.

  12. Brittle Fracture in a 50Mo-50Re alloy in static tensile testing

    SciTech Connect (OSTI)

    Xu, Jianhui [University of Kentucky, Lexington; Kenik, Edward A [ORNL; Zhai, Tongguang [University of Kentucky, Lexington

    2008-01-01T23:59:59.000Z

    Tensile tests were conducted on 50Mo-50Re alloys, in fully-recrystallized and recovery heat-treated conditions respectively, at a very low strain rate of 10-6 s-1 and room temperature in air. It was found that both these alloys exhibited predominantly cleavage fracture with significant intergranular secondary cracking, compared to the predominantly ductile fracture found in the alloys at a higher strain rate. Cracks were often initiated at grain boundary triple junctions at the low strain rate. Electron back scatter diffraction (EBSD) measurements revealed significantly high misorientation gradients at grain boundaries, especially in the vicinity of some grain boundary triple junctions in the deformed alloys. Transmission electron microscopic (TEM) results verified the existence of significant misorientation taking place at grain boundaries in these alloys. Stress-assisted dynamic embrittlement, possibly due to trace interstitials, was the possible cause for the occurrence of brittle fracture in the 50Mo-50Re alloys at the low strain rate.

  13. Spectroscopy of Double-Beta and Inverse-Beta Decays from 100Mo for Neutrinos

    E-Print Network [OSTI]

    H. Ejiri; J. Engel; R. Hazama; P. Krastev; N. Kudomi; R. G. H. Robertson

    2000-05-15T23:59:59.000Z

    Spectroscopic studies of two beta-rays from 100Mo are shown to be of potential interest for investigating both the Majorana neutrino mass by neutrinoless double beta-decay and low energy solar neutrino's by inverse beta-decay. With a multi-ton 100Mo detector, coincidence studies of correlated beta-beta from neutrinoless double beta-decay, together with the large Q value, permit identification of the neutrino-mass term with a sensitivity of ~ 0.03 eV. Correlation studies of the inverse beta and the successive beta-decay of 100Tc, together with the large capture rates for low energy solar neutrino's, make it possible to detect in realtime individual low energy solar neutrino in the same detector.

  14. Air damping of atomically thin MoS{sub 2} nanomechanical resonators

    SciTech Connect (OSTI)

    Lee, Jaesung; Wang, Zenghui; Feng, Philip X.-L., E-mail: philip.feng@case.edu [Department of Electrical Engineering and Computer Science, Case School of Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106 (United States); He, Keliang; Shan, Jie [Department of Physics, College of Arts and Sciences, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106 (United States)

    2014-07-14T23:59:59.000Z

    We report on experimental measurement of air damping effects in high frequency nanomembrane resonators made of atomically thin molybdenum disulfide (MoS{sub 2}) drumhead structures. Circular MoS{sub 2} nanomembranes with thickness of monolayer, few-layer, and multi-layer up to ?70?nm (?100 layers) exhibit intriguing pressure dependence of resonance characteristics. In completely covered drumheads, where there is no immediate equilibrium between the drum cavity and environment, resonance frequencies and quality (Q) factors strongly depend on environmental pressure due to bulging of the nanomembranes. In incompletely covered drumheads, strong frequency shifts due to compressing-cavity stiffening occur above ?200?Torr. The pressure-dependent Q factors are limited by free molecule flow (FMF) damping, and all the mono-, bi-, and tri-layer devices exhibit lower FMF damping than thicker, conventional devices do.

  15. Improved performance of U-Mo dispersion fuel by Si addition in Al matrix.

    SciTech Connect (OSTI)

    Kim, Y S; Hofman, G L [Nuclear Engineering Division

    2011-06-01T23:59:59.000Z

    The purpose of this report is to collect in one publication and fit together work fragments presented in many conferences in the multi-year time span starting 2002 to the present dealing with the problem of large pore formation in U-Mo/Al dispersion fuel plates first observed in 2002. Hence, this report summarizes the excerpts from papers and reports on how we interpreted the relevant results from out-of-pile and in-pile tests and how this problem was dealt with. This report also provides a refined view to explain in detail and in a quantitative manner the underlying mechanism of the role of silicon in improving the irradiation performance of U-Mo/Al.

  16. Oxidation Behavior and Chlorination Treatment to Improve Oxidation Resistance of Nb-Mo-Si-B Alloys

    SciTech Connect (OSTI)

    Vikas Behrani

    2004-12-19T23:59:59.000Z

    This thesis is written in an alternate format. The thesis is composed of a general introduction, two original manuscripts, and a general conclusion. References cited within each chapter are given at the end of each chapter. The general introduction starts with the driving force behind this research, and gives an overview of previous work on boron doped molybdenum silicides, Nb/Nb{sub 5}Si{sub 3} composites, boron modified niobium silicides and molybdenum niobium silicides. Chapter 2 focuses on the oxidation behavior of Nb-Mo-Si-B alloys. Chapter 3 contains studies on a novel chlorination technique to improve the oxidation resistance of Nb-Mo-Si-B alloys. Chapter 4 summarizes the important results in this study.

  17. Fission induced swelling and creep of U–Mo alloy fuel

    SciTech Connect (OSTI)

    Yeon Soo Kim; G. L. Hofman; J. S. Cheon; A. B. Robinson; D. M. Wachs

    2013-06-01T23:59:59.000Z

    Tapering of U–Mo alloy fuel at the end of plates is attributed to lateral mass transfer by fission induced creep, by which fuel mass is relocated away from the fuel end region where fission product induced fuel swelling is in fact the highest. This mechanism permits U–Mo fuel to achieve high burnup by effectively relieving stresses at the fuel end region, where peak stresses are otherwise expected because peak fission product induced fuel swelling occurs there. ABAQUS FEA was employed to examine whether the observed phenomenon can be simulated using physical–mechanical data available in the literature. The simulation results obtained for several plates with different fuel fabrication and loading scheme showed that the measured data were able to be simulated with a reasonable creep rate coefficient. The obtained creep rate constant lies between values for pure uranium and MOX, and is greater than all other ceramic uranium fuels.

  18. Induced codeposition. 1: An experimental investigation of Ni-Mo alloys

    SciTech Connect (OSTI)

    Podlaha, E.J.; Landolt, D. [Ecole Polytechnique Federale de Lausanne (Switzerland)

    1996-03-01T23:59:59.000Z

    The electrodeposition of nickel-molybdenum alloys was studied on rotating cylinder electrodes. The current density, electrode rotation rate, electrolyte temperature, and species concentrations were shown to influence alloy composition. The mass-transport limiting species were identified for different operating conditions and electrolyte compositions in order to study the rate-limiting steps of induced codeposition. If the concentration of nickel in the electrolyte was much larger than that of molybdate the molybdenum content in the alloy increased with rotation rate. On the other hand, if the concentration of molybdate in the electrolyte was larger than that of nickel the alloy composition was found to be independent of rotation rate. These results were applied to the deposition of compositionally modulated Ni-Mo alloys exhibiting larger periodic variations in Mo concentration than hitherto reported.

  19. Phase transitions in K-doped MoO{sub 2}

    SciTech Connect (OSTI)

    Alves, L. M. S., E-mail: leandro-fisico@hotmail.com; Lima, B. S. de; Santos, C. A. M. dos [Departamento de Engenharia de Materiais, Escola de Engenharia de Lorena-USP, Lorena, São Paulo 12602-810 (Brazil); Rebello, A.; Masunaga, S. H.; Neumeier, J. J. [Department of Physics, Montana State University, P.O. Box 173840, Bozeman, Montana 59717-3840 (United States); Leão, J. B. [NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Dr. MS 6102, Gaithersburg, Maryland 20899-6102 (United States)

    2014-05-28T23:59:59.000Z

    K{sub 0.05}MoO{sub 2} has been studied by x-ray and neutron diffractometry, electrical resistivity, magnetization, heat capacity, and thermal expansion measurements. The compound displays two phase transitions, a first-order phase transition near room temperature and a second-order transition near 54?K. Below the transition at 54?K, a weak magnetic anomaly is observed and the electrical resistivity is well described by a power-law temperature dependence with exponent near 0.5. The phase transitions in the K-doped MoO{sub 2} compound have been discussed for the first time using neutron diffraction, high resolution thermal expansion, and heat capacity measurements as a function of temperature.

  20. LEXICAL DECISION IN A PHONOLOGICALLY SHALLOW ORTHOGRAPHY* G Lukatela+, Do Popadic+, P. Ognjenovic+, and Mo To Turvey++

    E-Print Network [OSTI]

    +, and Mo To Turvey++ Abstracto The Serbo-Croatian language is written in two alphabets, Roman and Cyrillic shallow writing systems of Serbo-Croatian, lex ical decision proceeds with reference to the phonology

  1. Performance of ZnMoO4 crystal as cryogenic scintillating bolometer to search for double beta decay of molybdenum

    E-Print Network [OSTI]

    L. Gironi; C. Arnaboldi; J. W. Beeman; O. Cremonesi; F. A. Danevich; V. Ya. Degoda; L. I. Ivleva; L. L. Nagornaya; M. Pavan; G. Pessina; S. Pirro; V. I. Tretyak; I. A. Tupitsyna

    2010-10-01T23:59:59.000Z

    Zinc molybdate (ZnMoO4) single crystals were grown for the first time by the Czochralski method and their luminescence was measured under X ray excitation in the temperature range 85-400 K. Properties of ZnMoO4 crystal as cryogenic low temperature scintillator were checked for the first time. Radioactive contamination of the ZnMoO4 crystal was estimated as <0.3 mBq/kg (228-Th) and 8 mBq/kg (226-Ra). Thanks to the simultaneous measurement of the scintillation light and the phonon signal, the alpha particles can be discriminated from the gamma/beta interactions, making this compound extremely promising for the search of neutrinoless Double Beta Decay of 100-Mo. We also report on the ability to discriminate the alpha-induced background without the light measurement, thanks to a different shape of the thermal signal that characterizes gamma/beta and alpha particle interactions.

  2. High yield production of inorganic graphene-like materials (MoS?, WS?, BN) through liquid exfoliation testing key parameters

    E-Print Network [OSTI]

    Pu, Fei, S.B. Massachusetts Institute of Technology

    2012-01-01T23:59:59.000Z

    Inorganic graphene-like materials such as molybdenum disulfide (MoS?), tungsten sulfide (WS?), and boron nitride (BN) are known to have electronic properties. When exfoliated into layers and casted onto carbon nanofilms, ...

  3. Two photon absorption and its saturation of WS2 and MoS2 monolayer and few-layer films

    E-Print Network [OSTI]

    Zhang, Saifeng; McEvoy, Niall; O'Brien, Maria; Winters, Sinéad; Berner, Nina C; Yim, Chanyoung; Zhang, Xiaoyan; Chen, Zhanghai; Zhang, Long; Duesberg, Georg S; Wang, Jun

    2015-01-01T23:59:59.000Z

    The optical nonlinearity of WS2, MoS2 monolayer and few-layer films was investigated using the Z-scan technique with femtosecond pulses from the visible to the near infrared. The dependence of nonlinear absorption of the WS2 and MoS2 films on layer number and excitation wavelength was studied systematically. WS2 with 1~3 layers exhibits a giant two-photon absorption (TPA) coefficient. Saturation of TPA for WS2 with 1~3 layers and MoS2 with 25~27 layers was observed. The giant nonlinearity of WS2 and MoS2 is attributed to two dimensional confinement, a giant exciton effect and the band edge resonance of TPA.

  4. Quantitative Prediction of Surface Segregation in Bimetallic Pt-MAlloy Nanoparticles (M=Ni, Re, Mo)

    SciTech Connect (OSTI)

    Wang, Guofeng; Van Hove, Michel A.; Ross, Phil N.; Baskes,Michael I.

    2005-06-20T23:59:59.000Z

    This review addresses the issue of surface segregation inbimetallic alloy nanoparticles, which are relevant to heterogeneouscatalysis, in particular for electro-catalysts of fuel cells. We describeand discuss a theoretical approach to predicting surface segregation insuch nanoparticles by using the Modified Embedded Atom Method and MonteCarlo simulations. In this manner it is possible to systematicallyexplore the behavior of such nanoparticles as a function of componentmetals, composition, and particle size, among other variables. We choseto compare Pt75Ni25, Pt75Re25, and Pt80Mo20 alloys as example systems forthis discussion, due to the importance of Pt in catalytic processes andits high-cost. It is assumed that the equilibrium nanoparticles of thesealloys have a cubo-octahedral shape, the face-centered cubic lattice, andsizes ranging from 2.5 nm to 5.0 nm. By investigating the segregation ofPt atoms to the surfaces of the nanoparticles, we draw the followingconclusions from our simulations at T= 600 K. (1) Pt75Ni25 nanoparticlesform a surface-sandwich structure in which the Pt atoms are stronglyenriched in the outermost and third layers while the Ni atoms areenriched in the second layer. In particular, a nearly pure Pt outermostsurface layer can be achieved in those nanoparticles. (2) EquilibriumPt75Re25 nanoparticles adopt a core-shell structure: a nearly pure Ptshell surrounding a more uniform Pt-Re core. (3) In Pt80Mo20nanoparticles, the facets are fully occupied by Pt atoms, the Mo atomsonly appear at the edges and vertices, and the Pt and Mo atoms arrangethemselves in an alternating sequence along the edges and vertices. Oursimulations quantitatively agree with previous experimental andtheoretical results for the extended surfaces of Pt-Ni, Pt-Re, and Pt-Moalloys. We further discuss the reasons for the different types of surfacesegregation found in the different alloys, and some of theirimplications.

  5. Co-Rolled U10Mo/Zirconium-Barrier-Layer Monolithic Fuel Foil Fabrication Process

    SciTech Connect (OSTI)

    G. A. Moore; M. C. Marshall

    2010-01-01T23:59:59.000Z

    Integral to the current UMo fuel foil processing scheme being developed at Idaho National Laboratory (INL) is the incorporation of a zirconium barrier layer for the purpose of controlling UMo-Al interdiffusion at the fuel-meat/cladding interface. A hot “co-rolling” process is employed to establish a ~25-µm-thick zirconium barrier layer on each face of the ~0.3-mm-thick U10Mo fuel foil.

  6. An internship with San Tomas hunting camp Freeport-McMoRan, Inc. 

    E-Print Network [OSTI]

    Huggins, J. Grant

    1986-01-01T23:59:59.000Z

    An Internship with San Tomas Hunting Camp Freeport~NoRan, Inc. : A PRCFESSIQRAL PAPER by J. Grant Huggine Submitted to the College of Agriculture of Texas AN University in Rmrtial fulfillment of the requirements for the degree of NASTER GF... AGRICULTURE December 1986 Najor Subject: Wildlife Science Department of Wildife and Fisheries Sciences An Internship with San Tomas Hunting Camp Fr eeport-McMoRan, Inc. by J. Grant Huggins Approved as to style and content by: Wallace G. Klussmann...

  7. Continuing investigations for technology assessment of /sup 99/Mo production from LEU (low enriched Uranium) targets

    SciTech Connect (OSTI)

    Vandergrift, G.F.; Kwok, J.D.; Marshall, S.L.; Vissers, D.R.; Matos, J.E.

    1987-01-01T23:59:59.000Z

    Currently much of the world's supply of /sup 99m/Tc for medical purposes is produced from /sup 99/Mo derived from the fissioning of high enriched uranium (HEU). The need for /sup 99m/Tc is continuing to grow, especially in developing countries, where needs and national priorities call for internal production of /sup 99/Mo. This paper presents the results of our continuing studies on the effects of substituting low enriched Uranium (LEU) for HEU in targets for the production of fission product /sup 99/Mo. Improvements in the electrodeposition of thin films of uranium metal are reported. These improvements continue to increase the appeal for the substitution of LEU metal for HEU oxide films in cylindrical targets. The process is effective for targets fabricated from stainless steel or hastaloy. A cost estimate for setting up the necessary equipment to electrodeposit uranium metal on cylindrical targets is reported. Further investigations on the effect of LEU substitution on processing of these targets are also reported. Substitution of uranium silicides for the uranium-aluminum alloy or uranium aluminide dispersed fuel used in other current target designs will allow the substitution of LEU for HEU in these targets with equivalent /sup 99/Mo-yield per target and no change in target geometries. However, this substitution will require modifications in current processing steps due to (1) the insolubility of uranium silicides in alkaline solutions and (2) the presence of significant quantities of silicate in solution. Results to date suggest that both concerns can be handled and that substitution of LEU for HEU can be achieved.

  8. AutoMoDe - Model-Based Development of Automotive Software

    E-Print Network [OSTI]

    Ziegenbein, Dirk; Freund, Ulrich; Bauer, Andreas; Romberg, Jan; Schatz, Bernhard

    2011-01-01T23:59:59.000Z

    This paper describes first results from the AutoMoDe (Automotive Model-Based Development) project. The overall goal of the project is to develop an integrated methodology for model-based development of automotive control software, based on problem-specific design notations with an explicit formal foundation. Based on the existing AutoFOCUS framework, a tool prototype is being developed in order to illustrate and validate the key elements of our approach.

  9. Mo-Al{sub 2}O{sub 3} cermet research and development

    SciTech Connect (OSTI)

    Glass, S.J.; Monroe, S.L.; Stephens, J.J.; Moore, R.H. [and others

    1997-08-01T23:59:59.000Z

    This report describes the results to date of a program that was initiated to predict and measure residual stresses in Mo-Al{sub 2}O{sub 3} cermet-containing components and to develop new materials and processes that would lead to the reduction or elimination of the thermal mismatch stresses. The period of performance includes work performed CY95-97. Excessive thermal mismatch stresses had produced cracking in some cermet-containing neutron tube components. This cracking could lead to a loss of hermeticity or decreased tube reliability. Stress predictions were conducted using finite element models of the various components, along with the thermal coefficient of expansion (CTE), Young`s modulus, and strength properties. A significant portion of the program focused on the property measurements for the existing cermet materials, processing conditions, and the measurement technique. The effects of differences in the properties on the predicted residual stresses were calculated for existing designs. Several potential approaches were evaluated for reducing the residual stresses and cracking in cermet-containing parts including reducing the Mo content of the cermet, substituting a ternary alloy with a better CTE match with alumina, and substituting Nb for Mo. Processing modifications were also investigated for minimizing warpage that occurs during sintering due to differential sintering. These modifications include changing the pressing of the 94ND2 alumina and changing to a 96% alumina powder from AlSiMag.

  10. Effect of heat treatment on the mechanical properties of modified 9Cr-1Mo steel

    SciTech Connect (OSTI)

    Sultan F. Alsagabi; Triratna Shrestha; Indrajit Charit; Gabriel P. Potirniche; Michael V. Glazoff

    2014-09-01T23:59:59.000Z

    The modified 9Cr-1Mo steel (Grade 91) is a material of choice in fossil-fuel-fired power plants with increased efficiency, service life, and reduction in emission of greenhouse gases. It is also considered a prospective material for the Next Generation Nuclear Power Plant for application in reactor pressure vessels at temperatures up to 650°C. In this paper, heat treatment of the modified 9Cr-1Mo steel was studied by normalizing and tempering the steel at various temperatures and times, with the ultimate goal of improving its creep resistance and optimizing material hardness. The microstructural evolution of the heat treated steels was correlated with the differential scanning calorimetric results. Optical microscopy, scanning and transmission electron microscopy in conjunction with microhardness profiles and calorimetric plots were used to understand the evolution of microstructure including precipitate structures in modified 9Cr-1Mo steel and relate it to the mechanical behavior of the steel. Thermo- CalcTM calculations were used to support experimental work and provide guidance in terms of the precipitate stability and microstructural evolution. Furthermore, the carbon isopleth and temperature dependencies of the volume fraction of different precipitates were constructed. The predicted and experimentally observed results were found to be in good agreement.

  11. Evolution of collectivity along the N=Z line: The {sup 84}Mo nucleus

    SciTech Connect (OSTI)

    Bucurescu, D.; Ur, C.A.; Marginean, N.; Ionescu-Bujor, M.; Iordachescu, A.; Petrache, C.M. [Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest (Romania)] [Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest (Romania); Ur, C.A; Bazzacco, D.; Lunardi, S.; Petrache, C.M.; Brandolini, F.; Falconi, G.; Lenzi, S.M.; Venturelli, R. [Dipartimento di Fisica dellUniversita and INFN, Sezione di Padova, Padova (Italy)] [Dipartimento di Fisica dellUniversita and INFN, Sezione di Padova, Padova (Italy); Napoli, D.R.; de Angelis, G.; Gadea, A.; Foltescu, D.; Farnea, E.; Podolyak, Zs.; De Poli, M. [INFN, Laboratori Nazionali di Legnaro, Legnaro (Italy)] [INFN, Laboratori Nazionali di Legnaro, Legnaro (Italy); Rao, M.N. [Universidade de Sao Paolo, Sao Paolo, Brasil (Brazil)] [Universidade de Sao Paolo, Sao Paolo, Brasil (Brazil)

    1997-11-01T23:59:59.000Z

    The reaction {sup 58}Ni({sup 28}Si,2n{gamma}) at 90 MeV incident energy has been used to populate the N=Z nucleus {sup 84}Mo. The GASP array was used together with the ISIS Silicon ball, which allowed a subtraction of the charged particle channels in the {gamma}-{gamma} coincidences. The only known transition 2{sub 1}{sup +}{r_arrow}0{sub 1}{sup +} of 443.8 keV in {sup 84}Mo has been found in coincidence with a {gamma} ray of 673.5{plus_minus}0.4 keV which was assigned as the second (4{sub 1}{sup +}{r_arrow}2{sub 1}{sup +}) yrast transition. The behavior of the resulting yrast line indicates that {sup 84}Mo is a transitional nucleus. The correlation between the excitation energies of the 2{sub 1}{sup +} and 4{sub 1}{sup +} levels of the N=Z nuclei reveals a systematic deviation from the average behavior defined by all collective even-even nuclei. {copyright} {ital 1997} {ital The American Physical Society}

  12. Superconducting and structural properties of {delta}-MoC{sub 0.681} cubic molybdenum carbide phase

    SciTech Connect (OSTI)

    Sathish, C.I. [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan) [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan); Superconducting Properties Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Guo, Yanfeng, E-mail: GUO.Yanfeng@nims.go.jp [Superconducting Properties Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)] [Superconducting Properties Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Wang, Xia [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan) [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan); Superconducting Properties Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Tsujimoto, Yoshihiro [International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)] [International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Li, Jun [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan) [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan); Superconducting Properties Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Zhang, Shoubao [International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)] [International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Matsushita, Yoshitaka [Synchrotron X-ray Station at SPring-8, National Institute for Materials Science, 1-1-1 Kouto, Sayo-cho, Hyogo 679-5148 (Japan)] [Synchrotron X-ray Station at SPring-8, National Institute for Materials Science, 1-1-1 Kouto, Sayo-cho, Hyogo 679-5148 (Japan); Shi, Youguo; Tian, Huanfang; Yang, Huaixin; Li, Jianqi [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)] [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Yamaura, Kazunari, E-mail: YAMAURA.Kazunari@nims.go.jp [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan) [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan); Superconducting Properties Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)

    2012-12-15T23:59:59.000Z

    The superconducting and lattice properties of {delta}-MoC{sub 0.681} were studied by electromagnetic measurements, synchrotron X-ray diffraction, neutron diffraction, and electron diffraction. The superconducting properties (T{sub c}=12 K) of {delta}-MoC{sub 0.681} were well characterized by a weak coupling model. The carbon vacancies present in the host cubic structure were found to be robust, although the material was synthesized from stoichiometric carbon and Mo powder under a high-pressure of 6 GPa. A thermodynamically-stable structure with ordered vacancies did not account for the robust features of {delta}-MoC{sub 0.681} since the vacancies are unlikely to be ordered in long range in the host structure. A model based on inherent phonon instability theoretically predicted for a stoichiometric MoC phase might be responsible for the robust features of {delta}-MoC{sub 0.681}. - Graphical Abstract: The cubic molybdenum carbide shows an excellent superconductivity with robust carbon vacancies. Inherent phonon instability theoretically predicted for a stoichiometric MoC phase might be responsible for the vacancies rather than a thermodynamically-stable structure with vacancies ordering. Highlights: Black-Right-Pointing-Pointer The 12 K superconductivity is well characterized by a weakly coupling model. Black-Right-Pointing-Pointer Carbon vacancies are robust and disordered in the cubic host structure. Black-Right-Pointing-Pointer Inherent phonon instability might be responsible for the robust carbon vacancies in {delta}-MoC{sub 0.681}.

  13. Low-frequency 1/f noise in MoS{sub 2} transistors: Relative contributions of the channel and contacts

    SciTech Connect (OSTI)

    Renteria, J.; Jiang, C. [Nano-Device Laboratory, Department of Electrical Engineering, Bourns College of Engineering, University of California – Riverside, Riverside, California 92521 (United States); Samnakay, R. [Materials Science and Engineering Program, Bourns College of Engineering, University of California – Riverside, Riverside, California 92521 (United States); Rumyantsev, S. L. [Department of Electrical, Computer, and Systems Engineering, Center for Integrated Electronics, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States); Ioffe Physical-Technical Institute, St. Petersburg 194021 (Russian Federation); Goli, P.; Balandin, A. A., E-mail: balandin@ee.ucr.edu [Nano-Device Laboratory, Department of Electrical Engineering, Bourns College of Engineering, University of California – Riverside, Riverside, California 92521 (United States); Materials Science and Engineering Program, Bourns College of Engineering, University of California – Riverside, Riverside, California 92521 (United States); Shur, M. S. [Department of Electrical, Computer, and Systems Engineering, Center for Integrated Electronics, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States)

    2014-04-14T23:59:59.000Z

    We report on the results of the low-frequency (1/f, where f is frequency) noise measurements in MoS{sub 2} field-effect transistors revealing the relative contributions of the MoS{sub 2} channel and Ti/Au contacts to the overall noise level. The investigation of the 1/f noise was performed for both as fabricated and aged transistors. It was established that the McWhorter model of the carrier number fluctuations describes well the 1/f noise in MoS{sub 2} transistors, in contrast to what is observed in graphene devices. The trap densities extracted from the 1/f noise data for MoS{sub 2} transistors, are 2?×?10{sup 19}?eV{sup ?1}cm{sup ?3} and 2.5?×?10{sup 20}?eV{sup ?1}cm{sup ?3} for the as fabricated and aged devices, respectively. It was found that the increase in the noise level of the aged MoS{sub 2} transistors is due to the channel rather than the contact degradation. The obtained results are important for the proposed electronic applications of MoS{sub 2} and other van der Waals materials.

  14. Integrated Microfluidic Bioprocessors for Infectious Disease Detection

    E-Print Network [OSTI]

    Thaitrong, Numrin

    2010-01-01T23:59:59.000Z

    MO) and 0.0006% w/v riboflavin (Sigma Aldrich, St Louis MO)Invitrogen), 0.0006 % riboflavin (w/v) and 0.125 % TEMED (v/

  15. Proceedings of the ASME 2009 International Mechanical Engineering Congress & Exposition November 13-19, Lake Buena Vista, Florida, USA

    E-Print Network [OSTI]

    Attinger, Daniel

    University Department of Mechanical Engineering New York, NY, USA Lubomir Smilenov Columbia University Center

  16. A practical grinding-assisted dry synthesis of nanocrystalline NiMoO{sub 4} polymorphs for oxidative dehydrogenation of propane

    SciTech Connect (OSTI)

    Chen Miao, E-mail: chenmiao@sinochem.com [Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433 (China); Zhejiang Chemical Industry Research Institute, Hangzhou 310023 (China); Wu Jialing; Liu Yongmei [Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433 (China); Cao Yong, E-mail: yongcao@fudan.edu.cn [Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433 (China); Guo Li [Zhejiang Chemical Industry Research Institute, Hangzhou 310023 (China); He Heyong; Fan Kangnian [Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433 (China)

    2011-12-15T23:59:59.000Z

    A practical two-stage reactive grinding-assisted pathway waste-free and cost-effective for the synthesis of NiMoO{sub 4} has been successfully developed. It was demonstrated that proper design in synthetic strategy for grinding plays a crucial role in determining the ultimate polymorph of NiMoO{sub 4}. Specifically, direct grinding (DG) of MoO{sub 3} and NiO rendered {alpha}-NiMoO{sub 4} after annealing, whereas sequential grinding (SG) of the two independently pre-ground oxides followed by annealing generated {beta}-NiMoO{sub 4} solid solution. Characterizations in terms of Raman and X-ray diffraction suggest the creation of {beta}-NiMoO{sub 4} precursor in the latter alternative is the key aspect for the formation of {beta}-NiMoO{sub 4}. The DG-derived {alpha}-NiMoO{sub 4} tested by oxidative dehydrogenation of propane exhibited superior activity in contrast to its analog synthesized via conventional coprecipitation. It is suggested that the favorable chemical composition facilely obtained via grinding in contrast to that by coprecipitation was essential for achieving a more selective production of propylene. - Graphical Abstract: Grinding-assisted synthesis of NiMoO{sub 4} offers higher and more reproducible activities in contrast to coprecipitation for oxidative dehydrogenation of propane, and both {alpha}- and {beta}-NiMoO{sub 4} can be synthesized. Highlights: Black-Right-Pointing-Pointer NiMoO{sub 4} was prepared through grinding-assisted pathway. Black-Right-Pointing-Pointer Direct/sequential grinding rendered {alpha}-, {beta}-NiMoO{sub 4}, respectively. Black-Right-Pointing-Pointer Grinding-derived {alpha}-NiMoO{sub 4} showed high and reproducible activity for oxidative dehydrogenation of propane.

  17. Transmission electron microscopy of RSP Fe/Cr/Mn/Mo/C alloy. [Fe-3 wt % Cr-2 wt % Mn-0. 5 wt % Mo, -0. 3 wt % C

    SciTech Connect (OSTI)

    Rayment, J.J.; Thomas, G.

    1982-03-01T23:59:59.000Z

    Rapid solidification processing (RSP) has been carried out on an Fe/Cr/Mn/Mo/C alloy using both electron-beam melting and piston-and-anvil techniques. Preliminary TEM results show RSP produces a refined duplex microstructure of ferrite and martensite, with a typical ferrite grain size of 0.50 - 3.0 microns. This RSP microstructure is significantly different from that observed in the conventionally austenitized and quenched alloys - a lath martensitic microstructure with thin films of retained interlath austenite. The morphological change produced by RSP is accompanied by an increase in hardness from 48R/sub c/ to 61R/sub c/ (approx. 480 to 720 VHN). It is intended to use electron-beam specimens to examine the potential beneficial effect of RSP upon sliding wear resistance and, by careful TEM studies, it will be possible to characterize the microstructure and its role in the hardness and wear behavior of the RSP alloy.

  18. Recent Photovoltaic Performance Data in the USA (Presentation)

    SciTech Connect (OSTI)

    Jordan, D.

    2014-03-01T23:59:59.000Z

    This paper presents performance data from nearly 50,000 Photovoltaic systems totaling 1.7 Gigawatts installed capacity in the USA from 2009 to 2012. 90% of the systems performed to within 10% or better of expected performance. Only 2-4% of the data indicate issues significantly affecting the system performance. Special causes of underperformance and their impacts are delineated by reliability category. Delays and interconnections dominate project-related issues particularly in the first year, but total less than 0.5% of all systems. Hardware-related issues are dominated by inverter problems totaling less than 0.4% and underperforming modules to less than 0.1%.

  19. File:INL-geothermal-west-usa.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump to: navigation,SizeEthiopiametstak.pdf Jump to:nv.pdf Jump100west-usa.pdf

  20. LES' URENCO-USA Facility | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas » MethaneJohnsonKristina Pflanz About UsT8LES' URENCO-USA

  1. USA Science and Engineering Festival: Inspiring and Educating the Clean

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your DensityEnergy U.S.-China Electric Vehicle and BatteryUS-EU-Japan Working Group on CriticalJapanUSA

  2. Effects of Potassium Doping on CO Hydrogenation Over MoS2 Catalysts: A First-Principles Investigation

    SciTech Connect (OSTI)

    Andersen, Amity; Kathmann, Shawn M.; Lilga, Michael A.; Albrecht, Karl O.; Hallen, Richard T.; Mei, Donghai

    2014-07-01T23:59:59.000Z

    Periodic density functional theory calculations were performed to explore the effects of doping potassium (K) on the reactivity of CO hydrogenation to mixed higher alcohols over MoS2 catalysts. We found that the doped K species over the model MoS2(100) catalyst surface acts as a unique site for CO adsorption where either the K-C or the K-O bonding is allowed. The charge transfer from the K 4s electron to the conduction band of the MoS2(100) surface slightly enhances CO adsorption at the edge Mo sites. Due to the large electropositive nature, the presence of the surface K species, however, will hinder the dissociative adsorption of hydrogen. As a result, the doping K species drive CO hydrogenation selectivity toward the C2+ alcohols instead of hydrocarbons by increasing CO and decreasing hydrogen coverages on the MoS2 catalysts. To further elucidate the effect of doping K on the shifting of the selectivity toward CO hydrogenation, we calculated several key reaction steps leading to the H2CCO precursor formation, i.e., CO hydrogenation, the C-O bond scission and the C-C coupling (CH2+CO). The C-C coupling step is favorable for both the Mo and S edges. However, the undoped S edge has an overall more thermodynamically favorable reaction profile up to C-O scission compared with the Mo edge. This work was funded by a CRADA project (No. PNNL/297) with Range Fuels. The research was performed using EMSL, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. The work involving the results analysis and mansucript writing was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences & Biosciences.

  3. Service Description Unit Rate in $ Invoice Description Database Administration (1 to 600 MB) MB/Month 0.550 DATABASE 1-600 MB/MO

    E-Print Network [OSTI]

    Service Description Unit Rate in $ Invoice Description Database Administration (1 to 600 MB) MB/Month 0.550 DATABASE 1-600 MB/MO Database Administration (601 to 950 MB) MB/Month 0.290 DATABASE 601-950 MB/MO Database Administration (951 to 3,000 MB) MB/Month 0.200 DATABASE 951-3,000 MB/MO Database

  4. Service Description Unit Rate in $ Invoice Description Database Administration (1 to 600 MB) MB/Month 0.500 DATABASE 1-600 MB/MO

    E-Print Network [OSTI]

    Service Description Unit Rate in $ Invoice Description Database Administration (1 to 600 MB) MB/Month 0.500 DATABASE 1-600 MB/MO Database Administration (601 to 950 MB) MB/Month 0.265 DATABASE 601-950 MB/MO Database Administration (951 to 3,000 MB) MB/Month 0.175 DATABASE 951-3,000 MB/MO Database

  5. OMAE2014 June 8-13, 2014, San Francisco, California, USA OMAE2014...

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

    Offshore and Arctic Engineering OMAE2014 June 8-13, 2014, San Francisco, California, USA OMAE2014-24175 Hydrodynamic Module Coupling in the Offshore Wind Energy Simulation...

  6. Martensitic transformation behaviors of rapidly solidified Ti–Ni–Mo powders

    SciTech Connect (OSTI)

    Kim, Yeon-wook, E-mail: ywk@kmu.ac.kr [Department of Advanced Materials, Keimyung University, 1000 Shindang-dong, Dalseo-gu, Daegu 704-701 (Korea, Republic of)] [Department of Advanced Materials, Keimyung University, 1000 Shindang-dong, Dalseo-gu, Daegu 704-701 (Korea, Republic of)

    2012-10-15T23:59:59.000Z

    For the fabrication of bulk near-net-shape shape memory alloys and porous metallic biomaterials, consolidation of Ti–Ni–Mo alloy powders is more useful than that of elemental powders of Ti, Ni and Mo. Ti{sub 50}Ni{sub 49.9}Mo{sub 0.1} shape memory alloy powders were prepared by gas atomization, and transformation temperatures and microstructures of those powders were investigated as a function of powder size. XRD analysis showed that the B2–R–B19 martensitic transformation occurred in powders smaller than 150 ?m. According to DSC analysis of the as-atomized powders, the B2–R transformation temperature (T{sub R}) of the 25–50 ?m powders was 18.4 °C. The T{sub R} decreased with increasing powder size, however, the difference in T{sub R} between 25–50 ?m powders and 100–150 ?m powders is only 1 °C. Evaluation of powder microstructures was based on SEM examination of the surface and the polished and etched powder cross sections and the typical images of the rapidly solidified powders showed cellular morphology. Porous cylindrical foams of 10 mm diameter and 1.5 mm length were fabricated by spark plasma sintering (SPS) at 800 °C and 5 MPa. Finally these porous TiNi alloy samples are heat-treated for 1 h at 850 °C, and then quenched in ice water. The bulk samples have 23% porosity and 4.6 g/cm{sup 3} density and their T{sub R} is 17.8 °C.

  7. COMBATING THE PURPLE BOTANICAL PLAGUE: EVALUATION OF COLLETOTRICHUM GLOEOSPORIOIDES F. SP. MICONIAE FOR BIOLOGICAL CONTROL OF MICONIA CALVESCENS IN MO’OREA, FRENCH POLYNESIA

    E-Print Network [OSTI]

    Chen, Irene Y

    2009-01-01T23:59:59.000Z

    gloeosporioides, elevation, endophyte community, Mo’orea,occur upon contact: the endophyte fungus outcompeted theelevation gradient having 25 endophyte competition plates.

  8. Beta-decay properties of Zr and Mo neutron-rich isotopes

    E-Print Network [OSTI]

    P. Sarriguren; J. Pereira

    2010-06-08T23:59:59.000Z

    Gamow-Teller strength distributions, beta-decay half-lives, and beta-delayed neutron emission are investigated in neutron-rich Zr and Mo isotopes within a deformed quasiparticle random-phase approximation. The approach is based on a self-consistent Skyrme Hartree-Fock mean field with pairing correlations and residual separable particle-hole and particle-particle forces. Comparison with recent measurements of half-lives stresses the important role that nuclear deformation plays in the description of beta-decay properties in this mass region.

  9. Electronic structure of CdMoO{sub 4} using Compton scattering technique

    SciTech Connect (OSTI)

    Sharma, Khushboo, E-mail: khushboo.phy@gmail.com; Ahuja, B. L. [Department of Physics, University College of Science, M.L. Sukhadia University, Udaipur-313001 (India); Sahariya, Jagrati [Department of Physics, Manipal University, Jaipur-303007 (India)

    2014-04-24T23:59:59.000Z

    The first ever Compton profile of polycrystalline CdMoO{sub 4} has been measured using {sup 137}Cs spectrometer. The results are compared with theoretical Compton profiles deduced from free atom and linear combination of atomic orbitals (LCAO) methods. We have also computed the energy bands using density functional theory (DFT) within LCAO. The computed bands confirm the semiconducting behaviour of this compound. It is seen that the DFT theoretical profile (with local density approximation) gives a better agreement with the experimental Compton data than free atom Compton profile.

  10. FULL SIZE U-10MO MONOLITHIC FUEL FOIL AND FUEL PLATE FABRICATION-TECHNOLOGY DEVELOPMENT

    SciTech Connect (OSTI)

    G. A. Moore; J-F Jue; B. H. Rabin; M. J. Nilles

    2010-03-01T23:59:59.000Z

    Full-size U10Mo foils are being developed for use in high density LEU monolithic fuel plates. The application of a zirconium barrier layer too the foil is applied using a hot co-rolling process. Aluminum clad fuel plates are fabricated using Hot Isostatic Pressing (HIP) or a Friction Bonding (FB) process. An overview is provided of ongoing technology development activities, including: the co-rolling process, foil shearing/slitting and polishing, cladding bonding processes, plate forming, plate-assembly swaging, and fuel plate characterization. Characterization techniques being employed include, Ultrasonic Testing (UT), radiography, and microscopy.

  11. DOE - Office of Legacy Management -- United Nuclear Corp - MO 0-03

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling Corp -K LeDowntownUnited Nuclear Corp - MO 0-03

  12. File:USDA-CE-Production-GIFmaps-MO.pdf | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump to:ar-80m.pdf Jump to:Originalfaq.pdfFinal.pdf JumpIN.pdfMO.pdf Jump to:

  13. Single-crystal structure of vanadium-doped La{sub 2}Mo{sub 2}O{sub 9}

    SciTech Connect (OSTI)

    Alekseeva, O. A., E-mail: olalex@ns.crys.ras.ru; Antipin, A. M. [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)] [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation); Gagor, A.; Pietraszko, A. [Polish Academy of Sciences, Trzebiatowski Institute of Low Temperature and Structure Research (Poland)] [Polish Academy of Sciences, Trzebiatowski Institute of Low Temperature and Structure Research (Poland); Novikova, N. E.; Sorokina, N. I. [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)] [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation); Kharitonova, E. P.; Voronkova, V. I. [Moscow State University (Russian Federation)] [Moscow State University (Russian Federation)

    2013-11-15T23:59:59.000Z

    A high-precision X-ray diffraction study of single crystals of two compositions-La{sub 2}Mo{sub 1.78}V{sub 0.22}O{sub 8.89} and La{sub 2}Mo{sub 1.64}V{sub 0.36}O{sub 8.82}-was performed. In the vanadium-doped compounds, as in the structure of the metastable {beta}{sub ms} phase of pure La{sub 2}Mo{sub 2}O{sub 9}, the La and Mo atoms and one of the three oxygen atoms are displaced from the threefold axis, on which they are located in the high-temperature {beta} phase. The structure contains two partially occupied oxygen sites. It was shown that molybdenum atoms are partially replaced by vanadium atoms, which are not involved in the disordering, are located on the threefold axis, and are shifted toward one of the oxygen atoms. This is consistent with the temperature-induced changes in the structure of La{sub 2}Mo{sub 2}O{sub 9} and the changes in the properties of these crystals caused by the introduction of vanadium atoms into the structure.

  14. MO: ZL

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling7111AWell:F E ,"^ I ThisS11220Grand

  15. PP-108 APS San Louis

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently Asked QuestionsDepartmentGas and OilGeothermal andof Fuels P -1 1 1 1 1 1 1

  16. *Department of Neurological Surgery, Oregon Health & Science University, Portland, Oregon, USA Department of Molecular Biosciences, UC Davis School of Veterinary Medicine, Davis, California, USA

    E-Print Network [OSTI]

    Hammock, Bruce D.

    blood flow, modulation of neuronal pain processing in the brainstem, control of neurohormone release*Department of Neurological Surgery, Oregon Health & Science University, Portland, Oregon, USA acid that critically influence neuronal and vascu- lar function and disease, primarily via potent

  17. /sup 238/PuO/sub 2//Mo-50 wt% Re compatibility at 800 and 1000/sup 0/C

    SciTech Connect (OSTI)

    Schaeffer, D.R.; Teaney, P.E.

    1980-07-18T23:59:59.000Z

    The compatibility of Mo-50 wt % Re with /sup 238/PuO/sub 2/ was investigated after heat treatments of up to 720 days at 800/sup 0/C and 180 days at 1000/sup 0/C. At 800/sup 0/C, a 1-..mu..m thick, continuous layer of molybdenum oxide resulted. At 1000/sup 0/C, the oxide reaction product contained some plutonium and did not appear continuous. At 1000/sup 0/C, a layer of intermetallic formed at the Mo-Re edge, beneath the oxide layer, creating a barrier between the Mo-50 wt % Re and the /sup 238/PuO/sub 2/. The intermetallic layer was promoted by the iron impurity in the /sup 238/PuO/sub 2/.

  18. LASER TRIGGERED GAS SWITCHES UTILIZING BEAM TRANSPORT THROUGH 1 MO-cm DEIONIZED WATER.

    SciTech Connect (OSTI)

    Woodworth, Joseph Ray; Lehr, Jane [Sandia National Laboratories, Albuquerque, NM; Blickem, James R.; Wallace, Zachariah R.; Anaya, Victor Jr; Corley, John P; Lott, John; Hodge, Keith; Zameroski, Nathan D. [Sandia National Laboratories, Albuquerque, NM

    2005-11-01T23:59:59.000Z

    We report on the successful attempts to trigger high voltage pressurized gas switches by utilizing beam transport through 1 MO-cm deionized water. The wavelength of the laser radiation was 532 nm. We have investigated Nd: YAG laser triggering of a 6 MV, SF6 insulated gas switch for a range of laser and switch parameters. Laser wavelength of 532 nm with nominal pulse lengths of 10 ns full width half maximum (FWHM) were used to trigger the switch. The laser beam was transported through 67 cm-long cell of 1 MO-cm deionized water constructed with anti reflection UV grade fused silica windows. The laser beam was then focused to form a breakdown arc in the gas between switch electrodes. Less than 10 ns jitter in the operation of the switch was obtained for laser pulse energies of between 80-110 mJ. Breakdown arcs more than 35 mm-long were produced by using a 70 cm focusing optic.

  19. Shape controlled synthesis of CaMoO{sub 4} thin films and their photoluminescence property

    SciTech Connect (OSTI)

    Marques, Ana Paula de Azevedo [Laboratorio Interdisciplinar de Eletroquimica e Ceramica, Departamento de Quimica, Centro Multidisciplinar de Desenvolvimento de Materiais Ceramicos, Universidade Federal de Sao Carlos, C. Postal 676, 13565-905 Sao Carlos, SP (Brazil)], E-mail: apamarques@liec.ufscar.br; Longo, Valeria M. [Laboratorio Interdisciplinar de Eletroquimica e Ceramica, Departamento de Quimica, Centro Multidisciplinar de Desenvolvimento de Materiais Ceramicos, Universidade Federal de Sao Carlos, C. Postal 676, 13565-905 Sao Carlos, SP (Brazil); Melo, Dulce M.A. de [Laboratorio de Analise Termica e Materiais, Departamento de Quimica, Universidade Federal do Rio Grande do Norte, 59072-970 Natal, RN (Brazil); Pizani, Paulo S. [Laboratorio de Semicondutores, Departamento de Fisica, Universidade Federal de Sao Carlos, C. Postal 676, 13565-905 Sao Carlos, SP (Brazil); Leite, Edson R. [Laboratorio Interdisciplinar de Eletroquimica e Ceramica, Departamento de Quimica, Centro Multidisciplinar de Desenvolvimento de Materiais Ceramicos, Universidade Federal de Sao Carlos, C. Postal 676, 13565-905 Sao Carlos, SP (Brazil); Varela, Jose Arana [CMDMC, LIEC, Instituto de Quimica, Universidade Estadual Paulista, 14801-907 Araraquara, SP (Brazil); Longo, Elson [Laboratorio Interdisciplinar de Eletroquimica e Ceramica, Departamento de Quimica, Centro Multidisciplinar de Desenvolvimento de Materiais Ceramicos, Universidade Federal de Sao Carlos, C. Postal 676, 13565-905 Sao Carlos, SP (Brazil); CMDMC, LIEC, Instituto de Quimica, Universidade Estadual Paulista, 14801-907 Araraquara, SP (Brazil)

    2008-05-15T23:59:59.000Z

    CaMoO{sub 4} (CMO) disordered and ordered thin films were prepared by the complex polymerization method (CPM). The films were annealed at different temperatures and time in a conventional resistive furnace (RF) and in a microwave (MW) oven. The microstructure and surface morphology of the structure were monitored by atomic force microscopy (AFM) and high-resolution scanning electron microscopy (HRSEM). Order and disorder were characterized by X-ray diffraction (XRD) and optical reflectance. A strong photoluminescence (PL) emission was observed in the disordered thin films and was attributed to complex cluster vacancies. The experimental results were compared with density functional and Hartree-Fock calculations. - Graphical abstract: CaMoO{sub 4} thin films were prepared by the complex polymerization method (CPM). The films were annealed at different temperatures and time in a conventional resistive furnace and in a microwave oven. A strong photoluminescence emission was observed in the disordered thin films and was attributed to complex cluster vacancies. The experimental results were confirmed by high level first principle calculations.

  20. On the bonding nature of electron states for the Fe-Mo double perovskite

    SciTech Connect (OSTI)

    Carvajal, E.; Cruz-Irisson, M. [ESIME-Culhuacán, Instituto Politécnico Nacional, Av. Santa Ana 1000, C.P. 04430, México, D.F. (Mexico); Oviedo-Roa, R. [Programa de Investigación en Ingeniería Molecular, Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas Norte 152, C.P. 07730, México, D.F. (Mexico); Navarro, O. [Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, A.P. 70-360, 04510, México, D.F. (Mexico)

    2014-05-15T23:59:59.000Z

    The electronic transport as well as the effect of an external magnetic field has been investigated on manganese-based materials, spinels and perovskites. Potential applications of double perovskites go from magnetic sensors to electrodes in solid-oxide fuel cells; besides the practical interests, it is known that small changes in composition modify radically the physical properties of double perovskites. We have studied the Sr{sub 2}FeMoO{sub 6} double perovskite compound (SFMO) using first-principles density functional theory. The calculations were done within the generalized gradient approximation (GGA) scheme with the Perdew-Burke-Ernzerhof (PBE) functional. We have made a detailed analysis of each electronic state and the charge density maps around the Fermi level. For the electronic properties of SFMO it was used a primitive cell, for which we found the characteristic half-metallic behavior density of states composed by e{sub g} and t{sub 2g} electrons from Fe and Mo atoms. Those peaks were tagged as bonding or antibonding around the Fermi level at both, valence and conduction bands.

  1. Transparent Conducting ZnO Thin Films Doped with Al and Mo

    SciTech Connect (OSTI)

    Duenow, J.; Gessert, T.; Wood, D.; Young, D.; Coutts, T.

    2007-01-01T23:59:59.000Z

    Transparent conducting oxide (TCO) thin films are a vital part of photovoltaic cells, flat-panel displays, and electrochromic windows. ZnO-based TCOs, due to the relative abundance of Zn, may reduce production costs compared to those of the prevalent TCO In2O3:Sn (ITO). Undoped ZnO, ZnO:Al (0.5, 1, and 2 wt.% Al2O3), and ZnO:Mo (2 wt.%) films were deposited by RF magnetron sputtering. Controlled incorporation of H2 in the Ar sputtering ambient increased mobility of undoped ZnO by a factor of ~20 to 48 cm2V-1s-1. H2 also appears to catalyze ionization of dopants. This enabled lightly doped ZnO:Al to provide comparable conductivity to the standard 2 wt.%-doped ZnO:Al while demonstrating reduced infrared absorption. Mo was found to be an n-type dopant of ZnO, though material properties did not match those of ZnO:Al. Scattering mechanisms were investigated using temperature-dependent Hall measurements and the method of four coefficients. This abstract is subject to government rights.

  2. Rapid Traffic Information Dissemination Using Named Data Los Angeles, CA, USA

    E-Print Network [OSTI]

    California at Los Angeles, University of

    Rapid Traffic Information Dissemination Using Named Data Lucas Wang UCLA Los Angeles, CA, USA lucas@us.toyota-itc.com Lixia Zhang UCLA Los Angeles, CA, USA lixia@cs.ucla.edu ABSTRACT This paper applies the Named Data traffic information dissemination application based on the data naming design from our previ- ous work

  3. Honda Research Institute USA, Inc. http://www.honda-ri.com

    E-Print Network [OSTI]

    Thrun, Sebastian

    Honda Research Institute USA, Inc. http://www.honda-ri.com Call For 2006 Summer Interns The computer science research section of Honda Research Institute USA (HRI-US), located in Mountain View internship will produce working concepts as well as publications, under close collaboration with Honda

  4. EUTROPHICATION A J Gold, University of Rhode Island, Kingston, RI, USA

    E-Print Network [OSTI]

    Gold, Art

    EUTROPHICATION A J Gold, University of Rhode Island, Kingston, RI, USA J T Sims, University of Delaware, Newark, DE, USA Ã? 2005, Elsevier Ltd. All Rights Reserved. Introduction Eutrophication describes in nutrient inputs. Phosphorus (P) and nitrogen (N) are the nutrients that drive most eutrophication processes

  5. Ecological Modelling 187 (2005) 140178 Eutrophication model for Lake Washington (USA)

    E-Print Network [OSTI]

    Arhonditsis, George B.

    Ecological Modelling 187 (2005) 140­178 Eutrophication model for Lake Washington (USA) Part I eutrophication model that has been developed to simulate plankton dynamics in Lake Washington, USA. Because loading scenarios. © 2005 Elsevier B.V. All rights reserved. Keywords: Eutrophication; Lake Washington

  6. Controls on the regional-scale salinization of the Ogallala aquifer, Southern High Plains, Texas, USA

    E-Print Network [OSTI]

    Banner, Jay L.

    of Kentucky, Lexington, KY 40506-0053, USA b Department of Geological Sciences, The University of TexasControls on the regional-scale salinization of the Ogallala aquifer, Southern High Plains, Texas, USA Sunil Mehtaa, *, Alan E. Fryara , Jay L. Bannerb a Department of Geological Sciences, University

  7. Shapes of Knotted Cyclic Polymers Eric J. Rawdon, University of St. Thomas, Saint Paul, MN, USA

    E-Print Network [OSTI]

    Bigelow, Stephen

    Shapes of Knotted Cyclic Polymers Eric J. Rawdon, University of St. Thomas, Saint Paul, MN, USA, USA Momentary configurations of long polymers at thermal equilibrium usually deviate from spherical of asphericity (or prolateness) that describe these momentary ellipsoidal shapes of a polymer are determined

  8. Biogeography, ecoregions, and geomorphology affect fish species composition in streams of eastern Oklahoma, USA

    E-Print Network [OSTI]

    Marston, Richard A.

    Oklahoma, USA Daniel C. Dauwalter & Dale K. Splinter & William L. Fisher & Richard A. Marston Received: 8 and stream habitat, influenced fish species composition (presence­absence) in eastern Oklahoma, USA relative ecoregions in eastern Oklahoma. Partial canonical correspondence analyses (pCCAs) and variance partitioning

  9. Long-term directional changes in upland Quercus forests throughout Oklahoma, USA

    E-Print Network [OSTI]

    Palmer, Michael W.

    Long-term directional changes in upland Quercus forests throughout Oklahoma, USA Ryan D. De? Location: Oklahoma, USA. Methods: We re-sampled 30 forest stands originally sampled in the 1950s across; Juniperus virginiana; mesophication; Oak; Oklahoma; Quercus marilandica; Quercus stellata; Species

  10. The 33st International Electric Propulsion Conference, The George Washington University, USA October 6 10, 2013

    E-Print Network [OSTI]

    King, Lyon B.

    The 33st International Electric Propulsion Conference, The George Washington University, USA with FerroTec EFH-1 in a non- uniform magnetic field IEPC-2013-319 Presented at the 33rd International Electric Propulsion Conference, The George Washington University · Washington, D.C. · USA October 6 ­ 10

  11. The fate and transport of nitrate in shallow groundwater in northwestern Mississippi, USA

    E-Print Network [OSTI]

    modeling . USA Introduction Nitrate is the primary form of dissolved nitrogen in natural waters (MuellerThe fate and transport of nitrate in shallow groundwater in northwestern Mississippi, USA Heather L. Welch & Christopher T. Green & Richard H. Coupe Abstract Agricultural contamination of groundwater

  12. MoO3 as combined hole injection layer and tapered spacer in combinatorial multicolor microcavity organic light emitting diodes

    SciTech Connect (OSTI)

    Liu, R.; Xu, Chun; Biswas, Rana; Shinar, Joseph; Shinar, Ruth

    2011-09-01T23:59:59.000Z

    Multicolor microcavity ({mu}C) organic light-emitting diode (OLED) arrays were fabricated simply by controlling the hole injection and spacer MoO{sub 3} layer thickness. The normal emission was tunable from {approx}490 to 640 nm and can be further expanded. A compact, integrated spectrometer with two-dimensional combinatorial arrays of {mu}C OLEDs was realized. The MoO{sub 3} yields more efficient and stable devices, revealing a new breakdown mechanism. The pixel current density reaches {approx}4 A/cm{sup 2} and a maximal normal brightness {approx}140 000 Cd/m{sup 2}, which improves photoluminescence-based sensing and absorption measurements.

  13. Thermoelectric properties of M{sub 2}Mo{sub 6}Se{sub 6} (M =Tl,In)

    SciTech Connect (OSTI)

    Verebelyi, D.T.; Payne, J.E.; Tessema, G.X.; Mengistu, E.

    1997-07-01T23:59:59.000Z

    The authors have measured the thermal conductivity of Tl{sub 2}Mo{sub 6}Se{sub 6}, a quasi-one dimensional conductor which belongs to the family of M{sub 2}Mo{sub 6}X{sub 6} linear chain compounds. Using these results and the measurements of the Seebeck coefficient and the electrical conductivity the authors estimate the dimensionless figure of merit to be of the order of 0.08. This result suggest that this compound and other related compounds are good potential TE.

  14. Semiconductor electrodes; XLV: photoelectrochemistry of n- and p-Type MoTe/sub 2/ in aqueous solutions

    SciTech Connect (OSTI)

    Abruna, H.D.; Bard, A.J.; Hope, G.A.

    1982-10-01T23:59:59.000Z

    MoTe/sub 2/ (n- and p-type) electrodes have been characterized in terms of the energetic location of the valence and conduction bands, their voltammetric behavior, and their potential utility in photoelectrochemical cells. They show behavior that is qualitatively similar to the other layered semiconductors in terms of the sensitivity of their properties to growth conditions and surface imperfections. PEC cells based on n-MoTe/sub 2/ with I/sup -//I/sub 2/ as a redox couple were constructed. These reached monochromatic light (He/Ne laser) to electrical conversion efficiencies of over 8%.

  15. Y{sub 2}MoSe{sub 3}O{sub 12} and Y{sub 2}MoTe{sub 3}O{sub 12}: Solid-state synthesis, structure determination, and characterization of two new quaternary mixed metal oxides containing asymmetric coordination environment

    SciTech Connect (OSTI)

    Bang, Seong-eun; Pan, Zhi; Kim, Yeong Hun; Lee, Dong Woo; Ok, Kang Min, E-mail: kmok@cau.ac.kr

    2013-12-15T23:59:59.000Z

    Two new quaternary yttrium molybdenum selenium/tellurium oxides, Y{sub 2}MoSe{sub 3}O{sub 12} and Y{sub 2}MoTe{sub 3}O{sub 12} have been prepared by standard solid-state reactions using Y{sub 2}O{sub 3}, MoO{sub 3}, and SeO{sub 2} (or TeO{sub 2}) as reagents. Single-crystal X-ray diffraction was used to determine the crystal structures of the reported materials. Although both of the materials contain second-order Jahn–Teller (SOJT) distortive cations and are stoichiometrically similar, they reveal different structural features: while Y{sub 2}MoSe{sub 3}O{sub 12} shows a three-dimensional framework consisting of YO{sub 8}, MoO{sub 6}, and SeO{sub 3} groups, Y{sub 2}MoTe{sub 3}O{sub 12} exhibits a layered structure composed of YO{sub 8}, MoO{sub 4}, TeO{sub 3}, and TeO{sub 4} polyhedra. With the Mo{sup 6+} cations in Y{sub 2}MoSe{sub 3}O{sub 12}, a C{sub 3}-type intraoctahedral distortion toward a face is observed, in which the direction of the out-of-center distortion for Mo{sup 6+} is away from the oxide ligand linked to a Se{sup 4+} cation. The Se{sup 4+} and Te{sup 4+} cations in both materials are in asymmetric coordination environment attributed to the lone pairs. Elemental analyses, infrared spectroscopy, thermal analyses, intraoctahedral distortions, and dipole moment calculations for the compounds are also presented. - Graphical abstract: Y{sub 2}MoSe{sub 3}O{sub 12} reveals a three-dimensional framework consisting of YO{sub 8}, MoO{sub 6}, and SeO{sub 3} polyhedra, whereas Y{sub 2}MoTe{sub 3}O{sub 12} exhibits a layered structure composed of YO{sub 8}, MoO{sub 4}, TeO{sub 3}, and TeO{sub 4} groups. - Highlights: • Two new selenite and tellurite (Y{sub 2}MoQ{sub 3}O{sub 12}; Q=Se and Te) are synthesized. • Y{sub 2}MoQ{sub 3}O{sub 12} contain second-order Jahn–Teller distortive cations in asymmetric environments. • The intra-octahedral distortion of the Mo{sup 6+} is influenced by the Se{sup 4+}.

  16. Guidelines and Procedures for Motion Picture/Video/Film or Photography of and on the campus of the University of Missouri, Columbia MO.

    E-Print Network [OSTI]

    Taylor, Jerry

    of the University of Missouri, Columbia MO. The University of Missouri-Columbia, which houses the state of Missouri University of Missouri 311 Jesse Hall Columbia MO 65211-1240 Fax: 573.884.5446 The completed application producers, directors and their crew wish to use University property to produce films, television shows

  17. Controlled, Defect-Guided, Metal-Nanoparticle Incorporation onto MoS2 via Chemical and Microwave Routes: Electrical, Thermal, and

    E-Print Network [OSTI]

    Berry, Vikas

    show that MoS2 can be applied effectively in sensing,6,7 energy harvesting,8 and photoelectronicControlled, Defect-Guided, Metal-Nanoparticle Incorporation onto MoS2 via Chemical and Microwave via both diffusion limited aggregation and instantaneous reaction arresting (using microwaves

  18. Preparation and structural study from neutron diffraction data of Pr{sub 5}Mo{sub 3}O{sub 16}

    SciTech Connect (OSTI)

    Martinez-Lope, M.J. [Instituto de Ciencia de Materiales de Madrid, C.S.I.C., Cantoblanco, E-28049 Madrid, Spain. (Spain); Alonso, J.A., E-mail: ja.alonso@icmm.csic.e [Instituto de Ciencia de Materiales de Madrid, C.S.I.C., Cantoblanco, E-28049 Madrid, Spain. (Spain); Sheptyakov, D.; Pomjakushin, V. [Laboratory for Neutron Scattering, Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland)

    2010-12-15T23:59:59.000Z

    The title compound has been prepared as polycrystalline powder by thermal treatments of mixtures of Pr{sub 6}O{sub 11} and MoO{sub 2} in air. In the literature, an oxide with a composition Pr{sub 2}MoO{sub 6} has been formerly described to present interesting catalytic properties, but its true stoichiometry and crystal structure are reported here for the first time. It is cubic, isostructural with CdTm{sub 4}Mo{sub 3}O{sub 16} (space group Pn-3n, Z=8), with a=11.0897(1) A. The structure contains MoO{sub 4} tetrahedral units, with Mo-O distances of 1.788(2) A, fully long-range ordered with PrO{sub 8} polyhedra; in fact it can be considered as a superstructure of fluorite (M{sub 8}O{sub 16}), containing 32 MO{sub 2} fluorite formulae per unit cell, with a lattice parameter related to that of cubic fluorite (a{sub f}=5.5 A) as a{approx}2a{sub f}. A bond valence study indicates that Mo exhibits a mixed oxidation state between 5+ and 6+ (perhaps accounting for the excellent catalytic properties). One kind of Pr atoms is trivalent whereas the second presents a mixed Pr{sup 3+}-Pr{sup 4+} oxidation state. The similarity of the XRD pattern with that published for Ce{sub 2}MoO{sub 6} suggests that this compound also belongs to the same structural type, with an actual stoichiometry Ce{sub 5}Mo{sub 3}O{sub 16}. -- Graphical Abstract: Formerly formulated as Pr{sub 2}MoO{sub 6}, the title compound is a cubic superstructure of fluorite (a=11.0897(1) A, space group Pn-3n) due to the long-range ordering of PrO{sub 8} scalenohedra and MoO{sub 4} tetrahedral units, showing noticeable shifts of the oxygen positions in order to provide a tetrahedral coordination for Mo ions. A mixed valence Mo{sup 5+}-Mo{sup 6+} is identified, which could account for the excellent catalytic properties of this material. Display Omitted

  19. Wideband saturable absorption in few-layer molybdenum diselenide (MoSe2) for Q-switching Yb-, Er- and Tm-doped fiber lasers

    E-Print Network [OSTI]

    Woodward, R I; Runcorn, T H; Hu, G; Torrisi, F; Kelleher, E J R; Hasan, T

    2015-01-01T23:59:59.000Z

    We fabricate a free-standing molybdenum diselenide (MoSe2) saturable absorber by embedding liquid-phase exfoliated few-layer MoSe2 flakes into a polymer film. The MoSe2-polymer composite is used to Q-switch fiber lasers based on ytterbium (Yb), erbium (Er) and thulium (Tm) gain fiber, producing trains of microsecond-duration pulses with kilohertz repetition rates at 1060 nm, 1566 nm and 1924 nm, respectively. Such operating wavelengths correspond to sub-bandgap saturable absorption in MoSe2, which is explained in the context of edge-states, building upon studies of other semiconducting transition metal dichalcogenide (TMD)-based saturable absorbers. Our work adds few-layer MoSe2 to the growing catalog of TMDs with remarkable optical properties, which offer new opportunities for photonic devices.

  20. Toward epitaxially grown two-dimensional crystal hetero-structures: Single and double MoS{sub 2}/graphene hetero-structures by chemical vapor depositions

    SciTech Connect (OSTI)

    Lin, Meng-Yu [Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan (China); Research Center for Applied Sciences, Academia Sinica, Nankang, Taipei, Taiwan (China); Chang, Chung-En [Department of Photonics, National Chiao-Tung University, Hsinchu, Taiwan (China); Wang, Cheng-Hung [Institute of Display, National Chiao-Tung University, Hsinchu, Taiwan (China); Su, Chen-Fung; Chen, Chi [Research Center for Applied Sciences, Academia Sinica, Nankang, Taipei, Taiwan (China); Lee, Si-Chen [Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan (China); Lin, Shih-Yen, E-mail: shihyen@gate.sinica.edu.tw [Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan (China); Research Center for Applied Sciences, Academia Sinica, Nankang, Taipei, Taiwan (China); Department of Photonics, National Chiao-Tung University, Hsinchu, Taiwan (China)

    2014-08-18T23:59:59.000Z

    Uniform large-size MoS{sub 2}/graphene hetero-structures fabricated directly on sapphire substrates are demonstrated with layer-number controllability by chemical vapor deposition (CVD). The cross-sectional high-resolution transmission electron microscopy (HRTEM) images provide the direct evidences of layer numbers of MoS{sub 2}/graphene hetero-structures. Photo-excited electron induced Fermi level shift of the graphene channel are observed on the single MoS{sub 2}/graphene hetero-structure transistors. Furthermore, double hetero-structures of graphene/MoS{sub 2}/graphene are achieved by CVD fabrication of graphene layers on top of the MoS{sub 2}, as confirmed by the cross-sectional HRTEM. These results have paved the possibility of epitaxially grown multi-hetero-structures for practical applications.

  1. G. A. Edgar, Department of Matheamtics, The Ohio State University, Columbus, OH, USA (email: edgar@math.ohiostate.edu)

    E-Print Network [OSTI]

    Edgar, Gerald

    G. A. Edgar, Department of Matheamtics, The Ohio State University, Columbus, OH, USA (e­mail: edgar

  2. Volume 177, number 2 CHEMICAL PHYSICS LETTERS 15 February 1991 Cu titration of tilted CO on a MO( 110) surface

    E-Print Network [OSTI]

    Goodman, Wayne

    to the surface normal. Upon subsequent deposition of = 0.9 ML Cu at 95 Kfollowed by heating, infrared, in a weakening of the C-O bond [ l-41. The tilted CO can either dissociate into atomic C and 0 upon heating to z) surface. In this Letter, we present the results of studies on tilted CO on MO( 110) using infrared

  3. Trade Liberalization in South East Europe: Review of conformity of 23 FTAs with the MoU

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Trade Liberalization in South East Europe: Review of conformity of 23 FTAs with the MoU Patrick A1 of South East Europe (SEE) agreed to conclude bilateral Free Trade Agreements (FTAs) in order to develop their mutual trade and promote economic integration in the region. This approach implied

  4. Concept Feasibility Report for Using Co-Extrusion to Bond Metals to Complex Shapes of U-10Mo

    SciTech Connect (OSTI)

    Lavender, Curt A.; Paxton, Dean M.; Smith, Mark T.; Soulami, Ayoub; Joshi, Vineet V.; Burkes, Douglas

    2013-12-30T23:59:59.000Z

    In support of the Convert Program of the U.S. Department of Energy’s National Nuclear Security Administration (DOE/NNSA) Global Threat Reduction Initiative (GTRI), Pacific Northwest National Laboratory (PNNL) has been investigating manufacturing processes for the uranium-10% molybdenum (U-10Mo) alloy plate fuel for the U.S. high-performance research reactors (USHPRR). This report documents the results of PNNL’s efforts to develop the extrusion process for this concept. The approach to the development of a co-extruded complex-shaped fuel has been described and an extrusion of DU-10Mo was made. The initial findings suggest that given the extrusion forces required for processing U-10Mo, the co-extrusion process can meet the production demands of the USHPRR fuel and may be a viable production method. The development activity is in the early stages and has just begun to identify technical challenges to address details such as dimensional tolerances and shape control. New extrusion dies and roll groove profiles have been developed and will be assessed by extrusion and rolling of U-10Mo during the next fiscal year. Progress on the development and demonstration of the co-extrusion process for flat and shaped fuel is reported in this document

  5. Prediction of U-Mo dispersion nuclear fuels with Al-Si alloy using artificial neural network

    SciTech Connect (OSTI)

    Susmikanti, Mike, E-mail: mike@batan.go.id [Center for Development of Nuclear Informatics, National Nuclear Energy Agency, PUSPIPTEK, Tangerang (Indonesia); Sulistyo, Jos, E-mail: soj@batan.go.id [Center for Nuclear Facilities Engineering, National Nuclear Energy Agency, PUSPIPTEK, Tangerang (Indonesia)

    2014-09-30T23:59:59.000Z

    Dispersion nuclear fuels, consisting of U-Mo particles dispersed in an Al-Si matrix, are being developed as fuel for research reactors. The equilibrium relationship for a mixture component can be expressed in the phase diagram. It is important to analyze whether a mixture component is in equilibrium phase or another phase. The purpose of this research it is needed to built the model of the phase diagram, so the mixture component is in the stable or melting condition. Artificial neural network (ANN) is a modeling tool for processes involving multivariable non-linear relationships. The objective of the present work is to develop code based on artificial neural network models of system equilibrium relationship of U-Mo in Al-Si matrix. This model can be used for prediction of type of resulting mixture, and whether the point is on the equilibrium phase or in another phase region. The equilibrium model data for prediction and modeling generated from experimentally data. The artificial neural network with resilient backpropagation method was chosen to predict the dispersion of nuclear fuels U-Mo in Al-Si matrix. This developed code was built with some function in MATLAB. For simulations using ANN, the Levenberg-Marquardt method was also used for optimization. The artificial neural network is able to predict the equilibrium phase or in the phase region. The develop code based on artificial neural network models was built, for analyze equilibrium relationship of U-Mo in Al-Si matrix.

  6. The photocatalysis of Bi{sub 2}MoO{sub 6} under the irradiation of blue LED

    SciTech Connect (OSTI)

    Sun, Yuanyuan; Wang, Wenzhong, E-mail: wzwang@mail.sic.ac.cn; Zhang, Ling; Sun, Songmei

    2013-10-15T23:59:59.000Z

    Graphical abstract: - Highlights: • ·OH trap and hole sink were involved to investigate the active radicals. • Holes play a more important role in the degradation of RhB. • The ·OH were related to the decomposition of phenol. • The ·O{sub 2}-played a leading role in the photodegradation of phenol. • Blue LED is competitive and promising alternative for the future application. - Abstract: Bi{sub 2}MoO{sub 6} has been reported as a promising photocatalyst in wastewater treatment. The active radicals generated over the Bi{sub 2}MoO{sub 6} during the photocatalytic process were thought to be hydroxyl radical (·OH) but have not been proved. Herein, Bi{sub 2}MoO{sub 6} with nanoplate like morphology was synthesized and its photocatalytic performances in the degradation of rhodamine B (RhB) and phenol as colored and colorless model pollutants respectively were evaluated under the irradiation of blue light emitting diode (LED). The tert-butyl alcohol (TBA) as a ·OH trap and ethylene diamine tetraacetic acid (EDTA) as a hole sink were involved to investigate the main active groups that are generated on Bi{sub 2}MoO{sub 6} and function during the photodegradation of RhB and phenol. In addition, it is a competitive and promising alternative plan to use blue LED as light source for the future practical application in environmental remediation.

  7. Characterization of Gas Metal Arc Welding welds obtained with new high Cr-Mo ferritic stainless steel filler wires

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Characterization of Gas Metal Arc Welding welds obtained with new high Cr-Mo ferritic stainless Several compositions of metal cored filler wire were manufactured to define the best welding conditions for homogeneous welding, by Gas Metal Arc Welding (GMAW) process, of a modified AISI 444 ferritic stainless steel

  8. Highly Reversible Li-Ion Intercalating MoP2 Nanoparticle Cluster Anode for Lithium Rechargeable Batteries

    E-Print Network [OSTI]

    Cho, Jaephil

    Highly Reversible Li-Ion Intercalating MoP2 Nanoparticle Cluster Anode for Lithium Rechargeable nanoparticle clusters have quite reversible lithium-ion insertion and extraction, showing the first discharge lithium reactions, i MPn LixMPn simple Li-ion interca- lation and ii MPn M LixM + LixP alloying followed

  9. Development and validation of capabilities to measure thermal properties of layered monolithic U-Mo alloy plate-type fuel

    SciTech Connect (OSTI)

    Burkes, Douglas; Casella, Andrew M.; Buck, Edgar C.; Casella, Amanda J.; Edwards, Matthew K.; MacFarlan, Paul J.; Pool, Karl N.; Smith, Frances N.; Steen, Franciska H.

    2014-07-19T23:59:59.000Z

    The uranium-molybdenum (U-Mo) alloy in a monolithic form has been proposed as one fuel design capable of converting some of the world’s highest power research reactors from the use of high enriched uranium (HEU) to low enriched uranium (LEU). One aspect of the fuel development and qualification process is to demonstrate appropriate understanding of thermal conductivity behavior of the fuel system as a function of temperature and expected irradiation conditions. The purpose of this paper is to verify and validate the functionality of equipment methods installed in hot cells for eventual measurements on irradiated uranium-molybdenum (U-Mo) monolithic fuel specimens, procedures to operate the equipment, and models to extract the desired thermal properties. The results presented here demonstrate the adequacy of the equipment, procedures and models that have been developed for this purpose based on measurements conducted on surrogate depleted uranium-molybdenum (DU-Mo) alloy samples containing a zirconium diffusion barrier and clad in aluminum alloy 6061 (AA6061). The results are in excellent agreement with thermal property data reported in the literature for similar U-Mo alloys as a function of temperature.

  10. Synergistic effects of MoDTC and ZDTP on frictional behaviour of tribofilms at the nanometer scale

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    conditions in automotive engines, lubricating oils contain several additives, among which there are detergent ways resulting either in synergies or in adverse effects affecting the oil performance regarding anti1 Synergistic effects of MoDTC and ZDTP on frictional behaviour of tribofilms at the nanometer

  11. Effect of Mo substitution by W on impact property of heat affected zone in duplex stainless steels

    SciTech Connect (OSTI)

    Huh, M.J.; Kim, S.B.; Paik, K.W.; Kim, Y.G. [Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of). Dept. of Materials Science and Engineering] [Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of). Dept. of Materials Science and Engineering

    1997-04-01T23:59:59.000Z

    The duplex stainless steels are characterized by two phase structures composed of a mixture of austenite and ferrite phases. They offer high toughness, good weldability, satisfactory corrosion protection, excellent stress corrosion cracking resistance and high strength. Because of these characteristics, these steels have been widely used in various applications such as oil, gas, and chemical industries. Duplex stainless steels generally have suffered embrittlement when exposed at elevated temperature, i.e. above 300 C. To avoid this embrittlement, conventional duplex stainless steels are subject to solution treatment followed by water quenching in the final stage of production or fabrication, which limits the size of products. Kim et al. have recently reported that embrittlement can be greatly reduced by the partial or full replacement of Mo by W in 22Cr-base duplex stainless steels. For the processing of duplex stainless steel, fusion welding is a major fabrication method for corrosion resistant applications. Therefore the welding behavior of these materials has to be fully defined. The purpose of this study is to investigate the effect of Mo substitution by W on the impact property of simulated heat affected zones in 22Cr duplex stainless steels. Structural transformation associated with Mo substitution by W in HAZ has been also investigated on W-containing alloys and conventional 3% Mo duplex stainless steel.

  12. Effect of Composition on the Formation of Sigma during Single-Pass Welding of Mo-Bearing Stainless Steels

    E-Print Network [OSTI]

    DuPont, John N.

    by extending the solidification temperature range. Conversely, duplex and ferritic stainless steels, the advent of super-duplex stainless steels[8,12,17] with increased addi-bearing stainless steel compositions ranging from 0 to 10 wt pct Mo and over a broad range of Ni and Cr contents

  13. Synthesis of MoS? nano-petal forest supported on carbon nanotubes for enhanced field emission performance

    SciTech Connect (OSTI)

    Murawala, Aditya P.; Loh, Tamie A. J.; Chua, Daniel H. C., E-mail: msechcd@nus.edu.sg [Department of Materials Science and Engineering, National University of Singapore, Singapore 117576 (Singapore)

    2014-09-21T23:59:59.000Z

    We report the fabrication of a three-dimensional forest of highly crystalline two-dimensional (2D) molybdenum disulfide (MoS?) nano-petals encapsulating vertically aligned carbon nanotubes (CNT) in a core-shell configuration. Growth was conducted via magnetron sputtering at room temperature and it was found that the nano-petal morphology was formed only when a critical threshold in sputter deposition time was reached. Below this threshold, an amorphous tubular structure composed of mainly molybdenum oxides dominates instead. The presence of the MoS? nano-petals was shown to impart photoluminescence to the CNTs, in addition to significantly enhancing their electron emission properties, where the turn-on field was lowered from 2.50 V?m?¹ for pristine CNTs to 0.80 V?m?¹ for MoS?-CNT heterostructures fabricated at 30 min sputter deposition time. Photoluminescence was detected at wavelengths of approximately 684 nm and 615 nm, with the band at 684 nm gradually blue-shifting as sputter time was increased. These results demonstrate that it is possible to synthesize 2D MoS? layers without the need for chemical routes and high growth temperatures.

  14. tinyMoBot: A Platform for Mobile Sensor Networks Torsten Stremlau, Christoph Weyer, and Volker Turau

    E-Print Network [OSTI]

    Turau, Volker

    tinyMoBot: A Platform for Mobile Sensor Networks Torsten Stremlau, Christoph Weyer, and Volker or the whole network consist of mobile sen- sor nodes. Currently, no common platform is available. This paper are able to communicate with static nodes. Since a general mobile sensor network platform is not available

  15. Human Cathelicidin LL-37 Resistance and Increased Daptomycin MIC in Methicillin-Resistant Staphylococcus aureus Strain USA600 (ST45)

    E-Print Network [OSTI]

    Nizet, Victor

    of Medicine, Detroit, Michigan, USAb Bacteremia caused by methicillin-resistant Staphylococcus aureus (MRSA) USA600 has been associated with increased patient mortality. We found that USA600 MRSA exhibited-USA600 MRSA. Virulent health care-associated MRSA strains may coevolve innate host defense peptide

  16. Photodisintegration studies on p-nuclei: The case of Mo and Sm isotopes

    E-Print Network [OSTI]

    C. Nair; A. R. Junghans; M. Erhard; D. Bemmerer; R. Beyer; P. Crespo; E. Grosse; M. Fauth; K. Kosev; G. Rusev; K. D. Schilling; R. Schwengner; A. Wagner

    2007-10-26T23:59:59.000Z

    In explosive stellar environments like supernovae, the temperatures are high enough for the production of heavy neutron-deficient nuclei, the socalled p-nuclei. Up to now, the knowledge of the reaction rates of p-nuclei is based on theoretical parameterizations using statistical model calculations. At the bremsstrahlung facility of the superconducting electron accelerator ELBE of FZ Dresden-Rossendorf, we aim to measure the photodisintegration rates of heavy nuclei experimentally. Photoactivation measurements on the astrophysically relevant p-nuclei 92Mo and 144Sm have been performed with bremsstrahlung end-point energies from 10.0 to 16.5 MeV. First experiments on the short-lived decays following the reaction 144Sm(gamma,n) are carried out using a pneumatic delivery system for rapid transport of activated samples. The activation yields are compared with calculations using cross sections from recent Hauser-Feshbach models.

  17. Thermodynamic modeling and experimental validation of the Fe-Al-Ni-Cr-Mo alloy system

    SciTech Connect (OSTI)

    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

    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.

  18. Intense femtosecond photoexcitation of bulk and monolayer MoS{sub 2}

    SciTech Connect (OSTI)

    Paradisanos, I.; Fotakis, C. [Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology-Hellas (FORTH), Heraklion 71003 (Greece); Physics Department, University of Crete, Heraklion 71003 (Greece); Kymakis, E. [Center of Materials Technology and Photonics and Electrical Engineering Department, Technological Educational Institute (TEI) of Crete, Heraklion 71003 (Greece); Kioseoglou, G. [Materials Science and Technology Department, University of Crete, Heraklion 71003 (Greece); Stratakis, E., E-mail: stratak@iesl.forth.gr [Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology-Hellas (FORTH), Heraklion 71003 (Greece); Materials Science and Technology Department, University of Crete, Heraklion 71003 (Greece)

    2014-07-28T23:59:59.000Z

    The effect of femtosecond laser irradiation on bulk and single-layer MoS{sub 2} on silicon oxide is studied. Optical, field emission scanning electron microscopy and Raman microscopy were used to quantify the damage. The intensity of A{sub 1g} and E{sub 2g}{sup 1} vibrational modes was recorded as a function of the number of irradiation pulses. The observed behavior was attributed to laser-induced bond breaking and subsequent atoms removal due to electronic excitations. The single-pulse optical damage threshold was determined for the monolayer and bulk under 800?nm and 1030?nm pulsed laser irradiation, and the role of two-photon versus one photon absorption effects is discussed.

  19. Indirect-direct band gap transition through electric tuning in bilayer MoS{sub 2}

    SciTech Connect (OSTI)

    Zhang, Z. Y.; Si, M. S., E-mail: sims@lzu.edu.cn; Wang, Y. H.; Gao, X. P. [Key laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730 000 (China)] [Key laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou 730 000 (China); Sung, Dongchul; Hong, Suklyun [Graphene Research Institute, Sejong University, Seoul 143 747 (Korea, Republic of)] [Graphene Research Institute, Sejong University, Seoul 143 747 (Korea, Republic of); He, Junjie [Department of Physics, Xiangtan University, Hunan 411 105 (China)] [Department of Physics, Xiangtan University, Hunan 411 105 (China)

    2014-05-07T23:59:59.000Z

    We investigate the electronic properties of bilayer MoS{sub 2} exposed to an external electric field by using first-principles calculations. It is found that a larger interlayer distance, referring to that by standard density functional theory (DFT) with respect to that by DFT with empirical dispersion corrections, makes indirect-direct band gap transition possible by electric control. We show that external electric field effectively manipulates the valence band contrast between the K- and ?-valleys by forming built-in electric dipole fields, which realizes an indirect-direct transition before a semiconductor-metal transition happens. Our results provide a novel efficient access to tune the electronic properties of two-dimensional layered materials.

  20. Irradiation effects on base metal and welds of 9Cr-1Mo (EM10) martensitic steel

    SciTech Connect (OSTI)

    Alamo, A.; Seran, J.L.; Rabouille, O.; Brachet, J.C.; Maillard, A.; Touron, H.; Royer, J. [CEA Saclay, Gif-sur-Yvette (France)

    1996-12-31T23:59:59.000Z

    9Cr martensitic steels are being developed for core components (wrapper tubes) of fast breeder reactors as well as for fusion reactor structures. Here, the effects of fast neutron irradiation on the mechanical behavior of base metal and welds of 9Cr-1Mo (EM10) martensitic steel have been studied. Two types of weldments have been produced by TIG and electron beam techniques. Half of samples have been post-weld heat treated to produce a stress-relieved structure. The irradiation has been conducted in the Phenix reactor to doses of 63--65 dpa in the temperature range 450--459 C. The characterization of the welds, before and after irradiation, includes metallographic observations, hardness measurements, tensile and Charpy tests. It is shown that the mechanical properties of the welds after irradiation are in general similar to the characteristics obtained on the base metal, which is little affected by neutron irradiation.

  1. Microstructural Characterization of Irradiated U-7Mo/Al-5Si Dispersion to High Fission Density

    SciTech Connect (OSTI)

    J. Gan; B. D. Miller; D. D. Keiser, Jr.; A. B. Robinson; J. W. Madden; P. G. Medvedev; D. M. Wachs

    2014-11-01T23:59:59.000Z

    The fuel development program for research and test reactors calls for improved knowledge on the effect of microstructure on fuel performance in reactors. This work summarizes the recent TEM microstructural characterization of an irradiated U-7Mo/Al-5Si dispersion fuel plate (R3R050) irradiated in the Advanced Test Reactor (ATR) at Idaho National Laboratory to 5.2×1021 fissions/cm3. While a large fraction of the fuel grains is decorated with large bubbles, there is no evidence showing interlinking of these large bubbles at the specified fission density. The attachment of solid fission product precipitates to the bubbles is likely the result of fission product diffusion into these bubbles. The process of fission gas bubble superlattice collapse appears through bubble coalescence. The results are compared with the previous TEM work of the dispersion fuels irradiated to lower fission density from the same fuel plate.

  2. Small-scale Specimen Testing of Monolithic U-Mo Fuel Foils

    SciTech Connect (OSTI)

    Ramprashad Prabhakaran; Douglas E. Burkes; James I. Cole; Indrajit Charit; Daniel M. Wachs

    2008-10-01T23:59:59.000Z

    The objective of this investigation is to develop a shear punch testing (SPT) procedure and standardize it to evaluate the mechanical properties of irradiated fuels in a hot-cell so that the tensile behavior can be predicted using small volumes of material and at greatly reduced irradiation costs. This is highly important in the development of low-enriched uranium fuels for nuclear research and test reactors. The load-displacement data obtained using SPT can be interpreted in terms of and correlated with uniaxial mechanical properties. In order to establish a correlation between SPT and tensile data, sub-size tensile and microhardness testing were performed on U-Mo alloys. In addition, efforts are ongoing to understand the effect of test parameters (such as specimen thickness, surface finish, punch-die clearance, crosshead velocity and carbon content) on the measured mechanical properties, in order to rationalize the technique, prior to employing it on a material of unknown strength.

  3. Heat treated 9 Cr-1 Mo steel material for high temperature application

    DOE Patents [OSTI]

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

    2012-08-21T23:59:59.000Z

    The invention relates to a composition and heat treatment for 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 novel combination of composition and heat treatment produces a heat treated material containing both large primary titanium carbides and small secondary titanium carbides. The primary titanium carbides contribute to creep strength while the secondary titanium carbides act to maintain a higher level of chromium in the finished steel for increased oxidation resistance, and strengthen the steel by impeding the movement of dislocations through the crystal structure. The heat treated material provides improved performance at comparable cost to commonly used high-temperature steels such as ASTM P91 and ASTM P92, and requires heat treatment consisting solely of austenization, rapid cooling, tempering, and final cooling, avoiding the need for any hot-working in the austenite temperature range.

  4. Waste Processing To Support {sup 99}Mo Production at Sandia National Laboratories

    SciTech Connect (OSTI)

    Longley, Susan; Carson, Susan; McDonald, Marion

    1997-06-01T23:59:59.000Z

    As part of the Isotope Production Program at Sandia National Laboratories New Mexico (SNL/NM), procedures are being finalized for the production of {sup 99}Mo from the irradiation of {sup 235}U-coated stainless steel targets at the Technical Area (TA) V reactor and hot cell facilities. Methods have been identified and tested for the management of the non-product (waste) material as the final step in the production process. These methods were developed utilizing the waste material from a series of cold and hot tests, beginning with depleted uranium powder and culminating with a test involving an irradiated {sup 235}U target with an initial fission product inventory of approximately 18,000 Ci at the end of the irradiation cycle.

  5. Induced codeposition. 2: A mathematical model describing the electrodeposition of Ni-Mo alloys

    SciTech Connect (OSTI)

    Podlaha, E.J.; Landolt, D. [Ecole Polytechnique Federale de Lausanne (Switzerland)

    1996-03-01T23:59:59.000Z

    A steady-state mathematical model was developed to predict the behavior of the induced codeposition of Ni-Mo alloys in the kinetic and mass-transport controlled regions on rotating cylinder electrodes. The kinetic regions were characterized by a simple Tafel expression. A Nernst boundary layer representation described the mass transfer of ions through a diffusion layer. The governing features of the induced codeposition mechanism included soluble nickel acting as a catalyst to the molybdenum deposition and the generation of an absorbed intermediate species on the electrode surface. The resulting alloy composition was simulated for two electrolytes over a wide range of current densities and electrode rotation rates. The model predictions agreed with the observed trends in the experimental data.

  6. Development of an energy-use estimation methodology for the revised Navy Manual MO-303

    SciTech Connect (OSTI)

    Richman, E.E.; Keller, J.M.; Wood, A.G.; Dittmer, A.L.

    1995-01-01T23:59:59.000Z

    The U.S. Navy commissioned Pacific Northwest Laboratory (PNL) to revise and/or update the Navy Utilities Targets Manual, NAVFAC MO-303 (U.S. Navy 1972b). The purpose of the project was to produce a current, applicable, and easy-to-use version of the manual for use by energy and facility engineers and staff at all Navy Public Works Centers (PWCs), Public Works Departments (PWDs), Engineering Field Divisions (EFDs), and other related organizations. The revision of the MO-303 manual involved developing a methodology for estimating energy consumption in buildings and ships. This methodology can account for, and equitably allocate, energy consumption within Navy installations. The analyses used to develop this methodology included developing end-use intensities (EUIs) from a vast collection of Navy base metering and billing data. A statistical analysis of the metering data, weather data, and building energy-use characteristics was used to develop appropriate EUI values for use at all Navy bases. A complete Navy base energy reconciliation process was also created for use in allocating all known energy consumption. Initial attempts to use total Navy base consumption values did not produce usable results. A parallel effort using individual building consumption data provided an estimating method that incorporated weather effects. This method produced a set of building EUI values and weather adjustments for use in estimating building energy use. A method of reconciling total site energy consumption was developed based on a {open_quotes}zero-sum{close_quotes} principle. This method provides a way to account for all energy use and apportion part or all of it to buildings and other energy uses when actual consumption is not known. The entire text of the manual was also revised to present a more easily read understood and usable document.

  7. NUMERICAL SIMULATION FOR MECHANICAL BEHAVIOR OF U10MO MONOLITHIC MINIPLATES FOR RESEARCH AND TEST REACTORS

    SciTech Connect (OSTI)

    Hakan Ozaltun & Herman Shen

    2011-11-01T23:59:59.000Z

    This article presents assessment of the mechanical behavior of U-10wt% Mo (U10Mo) alloy based monolithic fuel plates subject to irradiation. Monolithic, plate-type fuel is a new fuel form being developed for research and test reactors to achieve higher uranium densities within the reactor core to allow the use of low-enriched uranium fuel in high-performance reactors. Identification of the stress/strain characteristics is important for understanding the in-reactor performance of these plate-type fuels. For this work, three distinct cases were considered: (1) fabrication induced residual stresses (2) thermal cycling of fabricated plates; and finally (3) transient mechanical behavior under actual operating conditions. Because the temperatures approach the melting temperature of the cladding during the fabrication and thermal cycling, high temperature material properties were incorporated to improve the accuracy. Once residual stress fields due to fabrication process were identified, solution was used as initial state for the subsequent simulations. For thermal cycling simulation, elasto-plastic material model with thermal creep was constructed and residual stresses caused by the fabrication process were included. For in-service simulation, coupled fluid-thermal-structural interaction was considered. First, temperature field on the plates was calculated and this field was used to compute the thermal stresses. For time dependent mechanical behavior, thermal creep of cladding, volumetric swelling and fission induced creep of the fuel foil were considered. The analysis showed that the stresses evolve very rapidly in the reactor. While swelling of the foil increases the stress of the foil, irradiation induced creep causes stress relaxation.

  8. Experimental and Theoretical EPR Study of Jahn?Teller-Active [HIPTN[subscript 3]N]MoL Complexes (L = N[subscript 2], CO, NH[subscript 3])

    E-Print Network [OSTI]

    McNaughton, Rebecca L.

    The trigonally symmetric Mo(III) coordination compounds [HIPTN[subscript 3]N]MoL (L = N[subscript 2], CO, NH[subscript 3]; [HIPTN3N]Mo = [(3,5-(2,4,6-i-Pr[subscript 3]C[subscript 6]H[subscript 2])[subscript 2]C[subscript ...

  9. M5Si3(M=Ti, Nb, Mo) Based Transition-Metal Silicides for High Temperature Applications

    SciTech Connect (OSTI)

    Zhihong Tang

    2007-12-01T23:59:59.000Z

    Transition metal silicides are being considered for future engine turbine components at temperatures up to 1600 C. Although significant improvement in high temperature strength, room temperature fracture toughness has been realized in the past decade, further improvement in oxidation resistance is needed. Oxidation mechanism of Ti{sub 5}Si{sub 3}-based alloys was investigated. Oxidation behavior of Ti{sub 5}Si{sub 3}-based alloy strongly depends on the atmosphere. Presence of Nitrogen alters the oxidation behavior of Ti{sub 5}Si{sub 3} by nucleation and growth of nitride subscale. Ti{sub 5}Si{sub 3.2} and Ti{sub 5}Si{sub 3}C{sub 0.5} alloys exhibited an excellent oxidation resistance in nitrogen bearing atmosphere due to limited dissolution of nitrogen and increased Si/Ti activity ratio. MoSi{sub 2} coating developed by pack cementation to protect Mo-based Mo-Si-B composites was found to be effective up to 1500 C. Shifting coating composition to T1+T2+Mo{sub 3}Si region showed the possibility to extend the coating lifetime above 1500 C by more than ten times via formation of slow growing Mo{sub 3}Si or T2 interlayer without sacrificing the oxidation resistance of the coating. The phase equilibria in the Nb-rich portion of Nb-B system has been evaluated experimentally using metallographic analysis and differential thermal analyzer (DTA). It was shown that Nb{sub ss} (solid solution) and NbB are the only two primary phases in the 0-40 at.% B composition range, and the eutectic reaction L {leftrightarrow} Nb{sub SS} + NbB was determined to occur at 2104 {+-} 5 C by DTA.

  10. The Need for Next Generation of Radiochemists in the USA

    SciTech Connect (OSTI)

    Mansour Akbarzadeh; Steven Bakhtiar; Patricia Paviet-Hartmann

    2011-06-01T23:59:59.000Z

    In 2009, the nuclear industry employed approximately 120,000 people. Nearly 38 percent of the nuclear industry force will be eligible to retire within the next five years. To maintain the current work force, the industry will need to hire approximately 25,000 more workers by 2015.1 The federal government will also need nuclear workers in the future in its laboratories, the military and government programs. There is a need not only for the entire nuclear community to work with the academia to recruit and train students in a standardized way for employment at nuclear facilities. Several strategies are taking place in the USA, as an example, an initiative developed at the Idaho National Laboratory (INL) is the Institute of Nuclear Science and Technology (INEST) with four Centers of Research and Education (COREs) selected to address some of the most challenging issues facing nuclear energy today: (1) Fuels and Materials, (2) Space Nuclear Research, (3) Fuel Cycle, and (4) Safety and Licensing. Another example is the development of a radiochemistry program at two universities: the University of Nevada Las Vegas (UNLV) and Washington State University (WSU) to attract the next generation work force. This paper will solely focus on the next generation of radiochemists needed in the US and will give examples illustrating the needs as well as the current activities in the academia and in the national laboratories to fulfill national needs.

  11. 11th International Symposium on Unmanned Untethered Submersible Technology (UUST99) August 22-25, 1999, New England Center, Durham, New Hampshire, USA

    E-Print Network [OSTI]

    Whitcomb, Louis L.

    of Underwater Vehicles Louis L. Whitcomb, Dana R. Yoerger, and Hanumant Singh Abstract This paper first reviews for reliable three- dimensional position sensing for underwater vehicles. Ta- ble 1 summarizes the sensors most11th International Symposium on Unmanned Untethered Submersible Technology (UUST99) August 22

  12. Development of cryogenic low background detector based on enriched zinc molybdate crystal scintillators to search for neutrinoless double beta decay of $^{100}$Mo

    E-Print Network [OSTI]

    Chernyak, Dmitry

    2015-01-01T23:59:59.000Z

    ZnMoO$_4$ scintillators with a mass of $\\sim$ 0.3 kg, as well as Zn$^{100}$MoO$_4$ crystals enriched in the isotope $^{100}$Mo were produced for the first time by using the low-thermal-gradient Czochralski technique. The optical and luminescent properties of the produced crystals were studied to estimate the progress in crystal growth quality. The low-temperature tests with a 313 g ZnMoO$_4$ and two enriched Zn$^{100}$MoO$_4$ crystals were performed aboveground in the Centre de Sciences Nucl\\'eaires et de Sciences de la Mati\\`ere. The low background measurements with a three ZnMoO$_4$ and two enriched detectors installed in the EDELWEISS set-up at the Laboratoire Souterrain de Modane were carried out. To optimize the light collection in ZnMoO$_4$ scintillating bolometers, we have simulated the collection of scintillation photons in a detector module for different geometries by Monte Carlo method using the GEANT4 package. Response to the 2$\

  13. Method for generating a crystalline .sup.99 MoO.sub.3 product and the isolation .sup.99m Tc compositions therefrom

    DOE Patents [OSTI]

    Bennett, Ralph G. (Idaho Falls, ID); Christian, Jerry D. (Idaho Falls, ID); Kirkham, Robert J. (Blackfoot, ID); Tranter, Troy J. (Idaho Falls, ID)

    1998-01-01T23:59:59.000Z

    An improved method for producing .sup.99m Tc compositions. .sup.100 Mo metal is irradiated with photons in a particle (electron) accelerator to produce .sup.99 Mo metal which is dissolved in a solvent. A solvated .sup.99 Mo product is then dried to generate a supply of .sup.99 MoO.sub.3 crystals. The crystals are thereafter heated at a temperature which will sublimate the crystals and form a gaseous mixture containing vaporized .sup.99m TcO.sub.3 and vaporized .sup.99m TcO.sub.2 but will not cause the production of vaporized .sup.99 MoO.sub.3. The mixture is then combined with an oxidizing gas to generate a gaseous stream containing vaporized .sup.99m Tc.sub.2 O.sub.7. Next, the gaseous stream is cooled to a temperature sufficient to convert the vaporized .sup.99m Tc.sub.2 O.sub.7 into a condensed .sup.99m Tc-containing product. The product has high purity levels resulting from the use of reduced temperature conditions and ultrafine crystalline .sup.99 MoO.sub.3 starting materials with segregated .sup.99m Tc compositions therein which avoid the production of vaporized .sup.99 MoO.sub.3 contaminants.

  14. Method for generating a crystalline {sup 99}MoO{sub 3} product and the isolation {sup 99m}Tc compositions therefrom

    DOE Patents [OSTI]

    Bennett, R.G.; Christian, J.D.; Kirkham, R.J.; Tranter, T.J.

    1998-09-01T23:59:59.000Z

    An improved method is described for producing {sup 99m}Tc compositions. {sup 100}Mo metal is irradiated with photons in a particle (electron) accelerator to produce {sup 99}Mo metal which is dissolved in a solvent. A solvated {sup 99}Mo product is then dried to generate a supply of {sup 99}MoO{sub 3} crystals. The crystals are thereafter heated at a temperature which will sublimate the crystals and form a gaseous mixture containing vaporized {sup 99m}TcO{sub 3} and vaporized {sup 99m}TcO{sub 2} but will not cause the production of vaporized {sup 99}MoO{sub 3}. The mixture is then combined with an oxidizing gas to generate a gaseous stream containing vaporized {sup 99m}Tc{sub 2}O{sub 7}. Next, the gaseous stream is cooled to a temperature sufficient to convert the vaporized {sup 99m}Tc{sub 2}O{sub 7} into a condensed {sup 99m}Tc-containing product. The product has high purity levels resulting from the use of reduced temperature conditions and ultrafine crystalline {sup 99}MoO{sub 3} starting materials with segregated {sup 99m}Tc compositions therein which avoid the production of vaporized {sup 99}MoO{sub 3} contaminants. 1 fig.

  15. Synthesis, crystal structure, and structural conversion of Ni molybdate hydrate NiMoO{sub 4}.nH{sub 2}O

    SciTech Connect (OSTI)

    Eda, Kazuo, E-mail: eda@kobe-u.ac.j [Department of Chemistry, Graduate School of Science, Kobe University, Nada-ku, Kobe 657-8501 (Japan); Kato, Yasuyuki; Ohshiro, Yu; Sugitani, Takamitu [Department of Chemistry, Graduate School of Science, Kobe University, Nada-ku, Kobe 657-8501 (Japan); Whittingham, M. Stanley [Institute for Materials Research, State University of New York at Binghamton, Binghamton, NY 13902-6000 (United States)

    2010-06-15T23:59:59.000Z

    The synthesis and crystal structure of NiMoO{sub 4}.nH{sub 2}O were investigated. The hydrate crystallized in the triclinic system with space group P-1, Z=4 with unit cell parameters of a=6.7791(2) A, b=6.8900(2) A, c=9.2486(2) A, {alpha}=76.681(2){sup o}, {beta}=83.960(2){sup o}, {gamma}=74.218(2){sup o}. Its ideal chemical composition was NiMoO{sub 4}.3/4H{sub 2}O rather than NiMoO{sub 4}.1H{sub 2}O. Under hydrothermal conditions the hydrate turned directly into {alpha}-NiMoO{sub 4} above 483 K, giving nanorods thinner than the crystallites of the mother hydrate. On the other hand, it turned into Anderson type of polyoxomolybdate via a solid-solution process in a molybdate solution at room temperature. - Graphical abstract: NiMoO{sub 4}.nH{sub 2}O crystallized in the triclinic system with space group P-1, and its ideal chemical composition was NiMoO{sub 4}.3/4H{sub 2}O rather than NiMoO{sub 4}.1H{sub 2}O.

  16. *Correspondence address. Fermilab, MS 122 E 871, Batavia, IL 60510, USA. Fax: 16308403867.

    E-Print Network [OSTI]

    Fermilab Experiment E871

    #Department of Physics, University of Virginia, Charlottesville, VA 22901, USA Received 28 March 2000 Inc., 1161 Homestead Ln., Chanhassen, MN 55317. # Exabyte Corp., 1685 38th St., Boulder, CO 80301

  17. ASME 2008 Summer Heat transfer Conference August 10-14, 2008, Jacksonville, FL., USA

    E-Print Network [OSTI]

    Bahrami, Majid

    ASME 2008 Summer Heat transfer Conference August 10-14, 2008, Jacksonville, FL., USA HT2008, University of Victoria Victoria, BC , V8W 2Y2, Canada ABSTRACT Accurate information on the temperature eld

  18. STATE-OF-THE-ART: FLY ASH, SILICA FUME AND SLAG UTILIZATION IN USA

    E-Print Network [OSTI]

    Wisconsin-Milwaukee, University of

    improvement, land reclamations, slurried flowable ash, water pollution control, etc. The medium technology Backfill. 1.0 Introduction At the present time, coal fired electric power plants in the USA produce

  19. Pieridae Energy (USA) Ltd. FE Dkt. No. 14-179-LNG

    Broader source: Energy.gov [DOE]

    The Office of Fossil Energy gives notice of receipt of an application filed on October 24, 2014, by Pieridae Energy (USA) Ltd (Pieridae) requesting long-term, multi-contract authority as further...

  20. EnergyGauge USA: A Residential Building Energy Simulation Design Tool 

    E-Print Network [OSTI]

    Fairey, P.; Vieira, R. K.; Parker, D. S.; Hanson, B.; Broman, P. A.; Grant, J. B.; Fuehrlein, B.; Gu, L.

    2002-01-01T23:59:59.000Z

    The Florida Solar Energy Center (FSEC) has developed new software (EnergyGauge USA) which allows simple calculation and rating of energy use of residential buildings around the United States. In the past, most residential analysis and rating...

  1. Overview of Station Analysis Tools Developed in Support of H2USA

    Broader source: Energy.gov [DOE]

    Access the recording and download presentation slides from the Fuel Cell Technologies Office webinar "Overview of Station Analysis Tools Developed in Support of H2USA" held on May 12, 2015.

  2. A Map Of Geothermal Potential For The Great Basin, Usa- Recognition...

    Open Energy Info (EERE)

    Potential For The Great Basin, Usa- Recognition Of Multiple Geothermal Environments Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: A Map Of...

  3. Global Economic Effects of USA Biofuel Policy and the Potential Contribution from Advanced Biofuels

    SciTech Connect (OSTI)

    Gbadebo Oladosu; Keith Kline; Paul Leiby; Rocio Uria-Martinez; Maggie Davis; Mark Downing; Laurence Eaton

    2012-01-01T23:59:59.000Z

    This study evaluates the global economic effects of the USA renewable fuel standards (RFS2), and the potential contribution from advanced biofuels. Our simulation results imply that these mandates lead to an increase of 0.21 percent in the global gross domestic product (GDP) in 2022, including an increase of 0.8 percent in the USA and 0.02 percent in the rest of the world (ROW); relative to our baseline, no-RFS scenario. The incremental contributions to GDP from advanced biofuels in 2022 are estimated at 0.41 percent and 0.04 percent in the USA and ROW, respectively. Although production costs of advanced biofuels are higher than for conventional biofuels in our model, their economic benefits result from reductions in oil use, and their smaller impacts on food markets compared with conventional biofuels. Thus, the USA advanced biofuels targets are expected to have positive economic benefits.

  4. Environmental Toxicology and Chemistry, Vol. 25, No. 2, pp. 458469, 2006 Printed in the USA

    E-Print Network [OSTI]

    Strauss, Richard E.

    the Anaconda Smelter Superfund Site, Anaconda, Montana, USA, to determine their exposure to five metal inhabiting sites contaminated by mine or smelter waste. Spe- cies with ubiquitous distributions and abundant

  5. Diversity of Low Chill Peaches (Prunus persica) from Asia, Brazil, Europe and the USA 

    E-Print Network [OSTI]

    Anderson, Natalie A.

    2011-08-08T23:59:59.000Z

    One hundred fifty-five peach (Prunus persica) cultivars, from Asia, Brazil, Europe, and the USA, were examined using eleven Simple Sequence Repeats (SSRs) to study the genetic relationships among low chill as compared to high chill peach germplasm...

  6. Proc. Natl. Acad. Sci. USA Vol. 94, pp. 60076012, June 1997

    E-Print Network [OSTI]

    Hammock, Bruce D.

    Proc. Natl. Acad. Sci. USA Vol. 94, pp. 6007­6012, June 1997 Applied Physical Sciences Disruption Communicated by William S. Bowers, University of Arizona, Tucson, AZ, April 7, 1997 (received for review

  7. Technology and Innovation, Vol. 13, pp. 175199, 2011 1949-8241/11 $90.00 + .00 Printed in the USA. All rights reserved. DOI: 10.3727/194982411X13085939956625

    E-Print Network [OSTI]

    Hubbard, Susan

    , Los Alamos, NM, USA §Pacific Northwest National Laboratory, Richland, WA, USA ¶Savannah River National, Washington, DC, USA Lawrence Berkeley National Laboratory, Berkeley, CA, USA Los Alamos National Laboratory Laboratory, Aiken, SC, USA #U.S. Department of Energy, Carlsbad, NM, USA The US Department Energy (DOE

  8. Results of U-xMo (x=7, 10, 12 wt.%) Alloy versus Al-6061 Cladding Diffusion Couple Experiments Performed at 500, 550 and 600 Degrees C

    SciTech Connect (OSTI)

    Emmanuel Perez; Dennis D. Keiser, Jr.; Yongho Sohn

    2013-04-01T23:59:59.000Z

    The Reduced Enrichment for Research and Test Reactors (RERTR) program has been developing low enrichment fuel systems encased in Al 6061 for use in research and test reactors. U–Mo alloys in contact with Al and Al alloys can undergo diffusional interactions that can result in the development of interdiffusion zones with complex fine-grained microstructures composed of multiple phases. A monolithic fuel currently being developed by the RERTR program has local regions where the U–Mo fuel plate is in contact with the Al 6061 cladding and, as a result, the program finds information about interdiffusion zone development at high temperatures of interest. In this study, the microstructural development of diffusion couples consisting of U-7wt.%Mo, U-10wt.%Mo, and U-12wt.%Mo vs. Al 6061 (or 6061 aluminum) cladding, annealed at 500, 550, 600 degrees C for 1, 5, 20, 24, or 132 hours, was analyzed by backscatter electron microscopy and x-ray energy dispersive spectroscopy on a scanning electron microscope. Concentration profiles were determined by standardized wavelength dispersive spectroscopy and standardless x-ray energy dispersive spectroscopy. The results of this work shows that the presence of surface layers at the U–Mo/Al 6061 interface can dramatically impact the overall interdiffusion behavior in terms of rate of interaction and uniformity of the developed interdiffusion zones. It further reveals that relatively uniform interaction layers with higher Si concentrations can develop in U–Mo/Al 6061 couples annealed at shorter times and that longer times at temperature result in the development of more non-uniform interaction layers with more areas that are enriched in Al. At longer annealing times and relatively high temperatures, U–Mo/Al 6061 couples can exhibit more interaction compared to U–Mo/pure Al couples. The minor alloying constituents in Al 6061 cladding can result in the development of many complex phases in the interaction layer of U–Mo/Al–6061 cladding couples, and some phases in the interdiffusion zones of U–Mo/Al–6061 cladding couples are likely similar to those observed for U–Mo/pure Al couples.

  9. Non-powered Dams: An untapped source of renewable electricity in the USA

    SciTech Connect (OSTI)

    Hadjerioua, Boualem [ORNL; Kao, Shih-Chieh [ORNL; Wei, Yaxing [ORNL; Battey, Hoyt [Department of Energy; Smith, Brennan T [ORNL

    2012-01-01T23:59:59.000Z

    Hydropower has been a source of clean, renewable electricity in the USA for more than 100 years. Today, approximately 2500 US dams provide 78 GW of conventional and 22 GW of pumped-storage hydropower. In contrast, another approximately 80 000 dams in the USA do not include hydraulic turbine equipment and provide non-energy related services, such as flood control, water supply, navigation, and recreation.

  10. 13 OctOber 2013 Mission Bay Conference Center, San Francisco, USA

    E-Print Network [OSTI]

    Kaski, Samuel

    1­3 OctOber 2013 Mission Bay Conference Center, San Francisco, USA www.beyond-the-genome.com Beyond the Genome 2013 #12;2 1­3 OctOber 2013 Mission Bay Conference Center, San Francisco, USA www.beyond-the-genome.com Beyond the Genome 2013 Exhibition and sponsorship Nick Moss BioMed Central T: +44 (0)20 3192 2723 E: nick

  11. Cobalt-doped Bi{sub 26}Mo{sub 10}O{sub 69}: Crystal structure and conductivity

    SciTech Connect (OSTI)

    Mikhailovskaya, Z.A., E-mail: zozoikina@mail.ru [Ural Federal University, Lenin Ave. 51, 620000 Ekaterinburg (Russian Federation); Buyanova, E.S. [Ural Federal University, Lenin Ave. 51, 620000 Ekaterinburg (Russian Federation); Petrova, S.A. [Institute of Metallurgy, Ural Branch of the Russian Academy of Sciences, 101 Amundsen Str., 620016 Ekaterinburg (Russian Federation); Morozova, M.V.; Zhukovskiy, V.M. [Ural Federal University, Lenin Ave. 51, 620000 Ekaterinburg (Russian Federation); Zakharov, R.G. [Institute of Metallurgy, Ural Branch of the Russian Academy of Sciences, 101 Amundsen Str., 620016 Ekaterinburg (Russian Federation); Tarakina, N.V. [Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, 91 Pervomayskaya Str., 620990 Ekaterinburg (Russian Federation); Experimentelle Physik III, Physikalisches Institut and Wilhelm Conrad Röntgen—Research Centre for Complex Material Systems, Universität Würzburg, Am Hubland, D-97074 Würzburg (Germany); Berger, I.F. [Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, 91 Pervomayskaya Str., 620990 Ekaterinburg (Russian Federation)

    2013-08-15T23:59:59.000Z

    A series of cobalt-doped bismuth molybdates were synthesized and investigated using X-ray powder diffraction, transmission electron microscopy and impedance spectroscopy. The ranges of solid solution were determined. Two new compounds, Bi{sub 1?x}Co{sub x}[Bi{sub 12}O{sub 14}]Mo{sub 5}O{sub 34.5±?} (x=0.2) and Bi[Bi{sub 12}O{sub 14}]Mo{sub 5?y}Co{sub y}O{sub 34.5±?} (y=0.2), which crystallise in monoclinic unit cells have been examined in detail by diffraction methods. Impedance spectroscopy measurements show that the studied materials are good ionic conductors with conductivity values about 5×10{sup ?3} S×cm{sup ?1} at 973 K and 1.7×10{sup ?4} S×cm{sup ?1} at 623 K, which are similar to conductivity values of yttrium substituted zirconia and (YSZ) gadolinium doped ceria (CGO). - Graphical abstract: Measured and calculated diffraction spectra for Bi{sub 12.8}Co{sub 0.2}Mo{sub 5}O{sub 34±?} and projection of the Bi{sub 12.8}Co{sub 0.2}Mo{sub 5}O{sub 34±?} crystal structure onto the ac plane. Highlights: • The limit of the Bi{sub 1?x}Co{sub x}[Bi{sub 12}O{sub 14}]Mo{sub 5}O{sub 34.5±?} homogeneity range is equal to x=0.2. • The limit of the Bi[Bi{sub 12}O{sub 14}]Mo{sub 5?y}Co{sub y}O{sub 34.5±?} homogeneity range is equal to y=0.2. • Solid solutions have monoclinic symmetry. No phase transition is observed. • The conductivity at 700° for y=0.2 solid solutions is equal to ?lg ?, S×cm{sup ?1}=2.23. • The conductivity at 350° for y=0.2 solid solutions is equal to ?lg ?, S×cm{sup ?1}=3.74.

  12. High-efficiency superconducting nanowire single-photon detectors fabricated from MoSi thin-films

    E-Print Network [OSTI]

    Verma, V B; Bussières, F; Horansky, R D; Dyer, S D; Lita, A E; Vayshenker, I; Marsili, F; Shaw, M D; Zbinden, H; Mirin, R P; Nam, S W

    2015-01-01T23:59:59.000Z

    We demonstrate high-efficiency superconducting nanowire single-photon detectors (SNSPDs) fabricated from MoSi thin-films. We measure a maximum system detection efficiency (SDE) of 87 +- 0.5 % at 1542 nm at a temperature of 0.7 K, with a jitter of 76 ps, maximum count rate approaching 10 MHz, and polarization dependence as low as 3.4 +- 0.7 % The SDE curves show saturation of the internal efficiency similar to WSi-based SNSPDs at temperatures as high as 2.3 K. We show that at similar cryogenic temperatures, MoSi SNSPDs achieve efficiencies comparable to WSi-based SNSPDs with nearly a factor of two reduction in jitter.

  13. Calculation of Design Parameters for an Equilibrium LEU Core in the NBSR using a U7Mo Dispersion Fuel

    SciTech Connect (OSTI)

    Hanson A. L.; Diamond D.

    2014-06-30T23:59:59.000Z

    A plan is being developed for the conversion of the NIST research reactor (NBSR) from high-enriched uranium (HEU) fuel to low-enriched uranium (LEU) fuel. The LEU fuel may be a monolithic foil (LEUm) of U10Mo (10% molybdenum by weight in an alloy with uranium) or a dispersion of U7Mo in aluminum (LEUd). A previous report provided neutronic calculations for the LEUm fuel and this report presents the neutronics parameters for the LEUd fuel. The neutronics parameters for the LEUd fuel are compared to those previously obtained for the present HEU fuel and the proposed LEUm fuel. The results show no significant differences between the LEUm and the LEUd other than the LEUd fuel requires slightly less uranium than the LEUm fuel due to less molybdenum being present. The calculations include kinetics parameters, reactivity coefficients, reactivity worths of control elements and abnormal configurations, and power distributions under normal operation and with misloaded fuel elements.

  14. Continuous ultra-thin MoS{sub 2} films grown by low-temperature physical vapor deposition

    SciTech Connect (OSTI)

    Muratore, C. [Department of Chemical and Materials Engineering, University of Dayton, Dayton, Ohio 45469 (United States); Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433 (United States); Hu, J. J.; Bultman, J. E.; Jespersen, M. L. [Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433 (United States); University of Dayton Research Institute, Dayton, Ohio 45469 (United States); Wang, B.; Haque, M. A. [Department of Mechanical and Nuclear Engineering, Pennsylvania State University, College Park, Pennsylvania 16802 (United States); Shamberger, P. J.; McConney, M. E.; Naguy, R. D.; Voevodin, A. A. [Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433 (United States)

    2014-06-30T23:59:59.000Z

    Uniform growth of pristine two dimensional (2D) materials over large areas at lower temperatures without sacrifice of their unique physical properties is a critical pre-requisite for seamless integration of next-generation van der Waals heterostructures into functional devices. This Letter describes a vapor phase growth technique for precisely controlled synthesis of continuous, uniform molecular layers of MoS{sub 2} on silicon dioxide and highly oriented pyrolitic graphite substrates of over several square centimeters at 350?°C. Synthesis of few-layer MoS{sub 2} in this ultra-high vacuum physical vapor deposition process yields materials with key optical and electronic properties identical to exfoliated layers. The films are composed of nano-scale domains with strong chemical binding between domain boundaries, allowing lift-off from the substrate and electronic transport measurements from contacts with separation on the order of centimeters.

  15. Feasibility study Part I - Thermal hydraulic analysis of LEU target for {sup 99}Mo production in Tajoura reactor

    SciTech Connect (OSTI)

    Bsebsu, F.M.; Abotweirat, F. [Reactor Department, Renewable Energies and Water Desalination Research Cente, P.O. Box 30878 Tajoura, Tripoli (Libyan Arab Jamahiriya)], E-mail: Bsebso@yahoo.com, E-mail: abutweirat@yahoo.com; Elwaer, S. [Radiochemistry Department, Renewable Energies and Water Desalination Research Cente, P.O. Box 30878 Tajoura, Tripoli (Libyan Arab Jamahiriya)], E-mail: samiwer@yahoo.com

    2008-07-15T23:59:59.000Z

    The Renewable Energies and Water Desalination Research Center (REWDRC), Libya, will implement the technology for {sup 99}Mo isotope production using LEU foil target, to obtain new revenue streams for the Tajoura nuclear research reactor and desiring to serve the Libyan hospitals by providing the medical radioisotopes. Design information is presented for LEU target with irradiation device and irradiation Beryllium (Be) unit in the Tajoura reactor core. Calculated results for the reactor core with LEU target at different level of power are presented for steady state and several reactivity induced accident situations. This paper will present the steady state thermal hydraulic design and transient analysis of Tajoura reactor was loaded with LEU foil target for {sup 99}Mo production. The results of these calculations show that the reactor with LEU target during the several cases of transient are in safe and no problems will occur. (author)

  16. Fano resonance and spectrally modified photoluminescence enhancement in monolayer MoS2 integrated with plasmonic nanoantenna array

    E-Print Network [OSTI]

    Lee, Bumsu; Han, Gang Hee; Ee, Ho-Seok; Naylor, Carl H; Liu, Wenjing; Johnson, A T Charlie; Agarwal, Ritesh

    2015-01-01T23:59:59.000Z

    The manipulation of light-matter interactions in two-dimensional atomically thin crystals is critical for obtaining new optoelectronic functionalities in these strongly confined materials. Here, by integrating chemically grown monolayers of MoS2 with a silver-bowtie nanoantenna array supporting narrow surface-lattice plasmonic resonances, a unique two-dimensional optical system has been achieved. The enhanced exciton-plasmon coupling enables profound changes in the emission and excitation processes leading to spectrally tunable, large photoluminescence enhancement as well as surface-enhanced Raman scattering at room temperature. Furthermore, at low temperatures, due to the decreased damping of MoS2 excitons interacting with the plasmonic resonances of the bowtie array, stronger exciton-plasmon coupling is achieved resulting in a Fano lineshape in the reflection spectrum. The Fano lineshape, which is due to the interference between the pathways involving the excitation of the exciton and plasmon, can be tuned ...

  17. Excitons in a mirror: Formation of “optical bilayers” using MoS{sub 2} monolayers on gold substrates

    SciTech Connect (OSTI)

    Mertens, Jan; Baumberg, Jeremy J., E-mail: jjb12@cam.ac.uk [Nanophotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE (United Kingdom); Shi, Yumeng; Yang, Hui Ying, E-mail: yanghuiying@sutd.edu.sg [Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore 138682 (Singapore); Molina-Sánchez, Alejandro; Wirtz, Ludger [Physics and Materials Science Research Unit, University of Luxembourg, L-1511 Luxembourg (Luxembourg)

    2014-05-12T23:59:59.000Z

    We report coupling of excitons in monolayers of molybdenum disulphide to their mirror image in an underlying gold substrate. Excitons at the direct band gap are little affected by the substrate whereas strongly bound C-excitons associated with a van-Hove singularity change drastically. On quartz substrates only one C-exciton is visible (in the blue) but on gold substrates a strong red-shifted extra resonance in the green is seen. Exciton coupling to its image leads to formation of a “mirror biexciton” with enhanced binding energy. Estimates of this energy shift in an emitter-gold system match experiments well. The absorption spectrum of MoS{sub 2} on gold thus resembles a bilayer of MoS{sub 2} which has been created by optical coupling. Additional top-mirrors produce an “optical bulk.”.

  18. High temperature oxidation and NaCl-induced accelerated corrosion of hot-dip aluminized 9Cr-1Mo and 310 stainless steel 

    E-Print Network [OSTI]

    Tsaur, Charng-Cheng

    2005-02-17T23:59:59.000Z

    The behaviors of high temperature corrosion on hot-dip aluminized on 9Cr-1Mo and 310 stainless steels when catalyzed by NaCl and cyclic heating environment were studied experimentally. The corrosion behavior and morphological ...

  19. The Influence of Casting Conditions on the Microstructure of As-Cast U-10Mo Alloys: Characterization of the Casting Process Baseline

    SciTech Connect (OSTI)

    Nyberg, Eric A.; Joshi, Vineet V.; Lavender, Curt A.; Paxton, Dean M.; Burkes, Douglas

    2013-12-13T23:59:59.000Z

    Sections of eight plate castings of uranium alloyed with 10 wt% molybdenum (U-10Mo) were sent from Y-12 to the Pacific Northwest National Laboratory (PNNL) for microstructural characterization. This report summarizes the results from this study.

  20. SEM Characterization of the High Burn-up Microstructure of U-7Mo Alloy

    SciTech Connect (OSTI)

    Dennis D. Keiser, Jr.; Jan-Fong Jue; Jian Gan; Brandon Miller; Adam Robinson; Pavel Medvedev; James Madden; Dan Wachs; M. Teague

    2014-04-01T23:59:59.000Z

    During irradiation, the microstructure of U-7Mo evolves until at a fission density near 5x1021 f/cm3 a high-burnup microstructure exists that is very different than what was observed at lower fission densities. This microstructure is dominated by randomly distributed, relatively large, homogeneous fission gas bubbles. The bubble superlattice has collapsed in many microstructural regions, and the fuel grain sizes, in many areas, become sub-micron in diameter with both amorphous fuel and crystalline fuel present. Solid fission product precipitates can be found inside the fission gas bubbles. To generate more information about the characteristics of the high-fission density microstructure, three samples irradiated in the RERTR-7 experiment have been characterized using a scanning electron microscope equipped with a focused ion beam. The FIB was used to generate samples for SEM imaging and to perform 3D reconstruction of the microstructure, which can be used to look for evidence of possible fission gas bubble interlinkage.

  1. Search for neutrinoless double-beta decay of Mo 100 with the NEMO-3 detector

    SciTech Connect (OSTI)

    John D. Baker; A. J. Caffrey

    2014-06-01T23:59:59.000Z

    We report the results of a search for the neutrinoless double-ß decay (0?ßß ) of Mo 100 , using the NEMO-3 detector to reconstruct the full topology of the final state events. With an exposure of 34.7??kg·y , no evidence for the 0?ßß signal has been found, yielding a limit for the light Majorana neutrino mass mechanism of T 1/2 (0?ßß)>1.1×10 24 years (90% C.L.) once both statistical and systematic uncertainties are taken into account. Depending on the nuclear matrix elements this corresponds to an upper limit on the Majorana effective neutrino mass of ?m ? ?<0.3–0.9??eV (90% C.L.). Constraints on other lepton number violating mechanisms of 0?ßß decays are also given. Searching for high-energy double electron events in all suitable sources of the detector, no event in the energy region [3.2–10] MeV is observed for an exposure of 47??kg·y .

  2. Nonlinear Raman Shift Induced by Exciton-to-Trion Transformation in Suspended Trilayer MoS2

    E-Print Network [OSTI]

    Taghinejad, Hossein; Tarasov, Alexey; Tsai, Meng-Yen; Hosseinnia, Amir H; Campbell, Philip M; Eftekhar, Ali A; Vogel, Eric M; Adibi, Ali

    2015-01-01T23:59:59.000Z

    Layered two-dimensional (2D) semiconductors such as molybdenum disulfide (MoS2) have recently attracted remarkable attention because of their unique physical properties. Here, we use photoluminescence (PL) and Raman spectroscopy to study the formation of the so- called trions in a synthesized freestanding trilayer MoS2. A trion is a charged quasi-particle formed by adding one electron or hole to a neutral exciton (a bound electron-hole pair). We demonstrate accurate control over the transformation of excitons to trions by tuning the power of the optical pump (laser). Increasing the power of the excitation laser beyond a certain threshold (~ 4 mW) allows modulation of trion-to-exciton PL intensity ratio as well as the spectral linewidth of both trions and excitons. Via a systematic and complementary Raman analysis we disclose a strong coupling between laser induced exciton-to-trion transformation and the characteristic phononic vibrations of MoS2. The onset of such an optical transformation corresponds to the ...

  3. Investigation of (110)Mo, (110)W monocrystals and Nb polycrystal implanted by oxygen ions and used as TEC electrodes

    SciTech Connect (OSTI)

    Tsakadze, L.M.

    1995-12-31T23:59:59.000Z

    In an effort to improve efficiency of a thermionic energy converter (TEC), converting thermal power into electric power, there were investigated collectors made of (110)Mo and (110)W monocrystals, and Nb polycrystal, all being implanted by oxygen ions with fluence of 1*10{sup 18} cm{sup {minus}2}. For emitters there were used (110)Mo and (110)W monocrystals, and Nb polycrystal implanted by oxygen ions, respectively. The performance of TEC with implanted electrode material is compared with this of TEC having electrodes of non-implanted materials. It is demonstrated that for emitter temperature range of 1,473 to 1,873 K employment of (110)Mo and (110)W monocrystals, implanted by oxygen ions, for TEC collector allows to increase the specific output power of a converter approximately by a factor of 1.6, and employment of implanted Nb for electrodes -- to increase this value approximately by a factor of 3, as compared with non-implanted electrode materials. The upgraded performance of TEC with implanted electrode materials is caused by the increase of minimum values of the collector working function by {approximately}0.15--0.2 eV as compared with non-implanted collectors, as well as by improvement of emitter emissive and adsorption properties due to oxygen supply from collectors at operating temperatures.

  4. Reconfigurable p-n junction diodes and the photovoltaic effect in exfoliated MoS{sub 2} films

    SciTech Connect (OSTI)

    Sutar, Surajit; Agnihotri, Pratik; Comfort, Everett; Ung Lee, Ji, E-mail: jlee1@albany.edu [The College of Nanoscale Science and Engineering (CNSE), SUNY at Albany, Albany, New York 12203 (United States); Taniguchi, T.; Watanabe, K. [National Institute of Materials Science, 1-2-1 Sengen, Tsukuba-city, Ibaraki 305-0047 (Japan)

    2014-03-24T23:59:59.000Z

    Realizing basic semiconductor devices such as p-n junctions are necessary for developing thin-film and optoelectronic technologies in emerging planar materials such as MoS{sub 2}. In this work, electrostatic doping by buried gates is used to study the electronic and optoelectronic properties of p-n junctions in exfoliated MoS{sub 2} flakes. Creating a controllable doping gradient across the device leads to the observation of the photovoltaic effect in monolayer and bilayer MoS{sub 2} flakes. For thicker flakes, strong ambipolar conduction enables realization of fully reconfigurable p-n junction diodes with rectifying current-voltage characteristics, and diode ideality factors as low as 1.6. The spectral response of the photovoltaic effect shows signatures of the predicted band gap transitions. For the first excitonic transition, a shift of >4{sub kB}T is observed between monolayer and bulk devices, indicating a thickness-dependence of the excitonic coulomb interaction.

  5. Electronic structure of the 4d transition metal carbides: Dispersed fluorescence spectroscopy of MoC, RuC, and PdC

    E-Print Network [OSTI]

    Morse, Michael D.

    C, RuC, and PdC Ryan S. DaBell,a) Raymond G. Meyer,b) and Michael D. Morsec) Department of Chemistry fluorescence studies of the diatomic molecules MoC, RuC, and PdC are reported. New states identified in Mo are observed by dispersed fluorescence in PdC. The ground state is found to be ... 2 4 12 2 , 1

  6. BAYESIAN RESIDUAL ANALYSIS FOR BINARY RESPONSE

    E-Print Network [OSTI]

    Albert, James H.

    of Mathematics and Statistics Bowling Green State University, Bowling Green, 43403 USA Siddhartha Chib Olin School of Business Washington University, St. Louis 63130 USA March, 1994 Summary In a binary response

  7. Effect of point and grain boundary defects on the mechanical behavior of monolayer MoS{sub 2} under tension via atomistic simulations

    SciTech Connect (OSTI)

    Dang, Khanh Q. [Department of Mechanical Engineering, University of Arkansas, Fayetteville, Arkansas 72701 (United States); Spearot, Douglas E., E-mail: dspearot@uark.edu [Department of Mechanical Engineering, University of Arkansas, Fayetteville, Arkansas 72701 (United States); Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701 (United States)

    2014-07-07T23:59:59.000Z

    Atomistic simulation is used to study the structure and energy of defects in monolayer MoS{sub 2} and the role of defects on the mechanical properties of monolayer MoS{sub 2}. First, energy minimization is used to study the structure and energy of monosulfur vacancies positioned within the bottom S layer of the MoS{sub 2} lattice, and 60° symmetric tilt grain boundaries along the zigzag and armchair directions, with comparison to experimental observations and density functional theory calculations. Second, molecular dynamics simulations are used to subject suspended defect-containing MoS{sub 2} membranes to a state of multiaxial tension. A phase transformation is observed in the defect-containing membranes, similar to prior work in the literature. For monolayer MoS{sub 2} membranes with point defects, groups of monosulfur vacancies promote stress-concentration points, allowing failure to initiate away from the center of the membrane. For monolayer MoS{sub 2} membranes with grain boundaries, failure initiates at the grain boundary and it is found that the breaking force for the membrane is independent of grain boundary energy.

  8. Hydrothermal synthesis and luminescent properties of NaLa(MoO{sub 4}){sub 2}:Dy{sup 3+} phosphor

    SciTech Connect (OSTI)

    Li Linlin; Zi Wenwen; Li Guanghuan; Lan Shi; Ji Guijuan [College of Chemistry, Jilin University, Changchun 130026 (China); Gan Shucai, E-mail: gansc@jlu.edu.cn [College of Chemistry, Jilin University, Changchun 130026 (China); Zou Haifeng [College of Chemistry, Jilin University, Changchun 130026 (China); Xu Xuechun [College of Earth Sciences, Jilin University, Changchun 130026 (China)

    2012-07-15T23:59:59.000Z

    Pompon-like NaLa(MoO{sub 4}){sub 2}:Dy{sup 3+} phosphors have been successfully prepared via a hydrothermal method using ammonia as pH value regulator. The hydrothermal process was carried out under aqueous condition without the use of any organic solvent, surfactant, and catalyst. The experimental results demonstrate that the obtained NaLa(MoO{sub 4}){sub 2}:Dy{sup 3+} phosphor powders are single-phase scheelite structure with tetragonal symmetry. Moreover, the phosphor under the excitation of 390 and 456 nm exhibited blue emission (486 nm) and yellow emission (574 nm), corresponding to the {sup 4}F{sub 9/2}{yields}{sup 6}H{sub 15/2} transition and {sup 4}F{sub 9/2}{yields}{sup 6}H{sub 13/2} transition of Dy{sup 3+} ions, respectively. In addition, the yellow-to-blue emission intensity ratio (Y/B) can be changed with the doped concentration of Dy{sup 3+} ions. All chromaticity coordinates of the obtained NaLa(MoO{sub 4}){sub 2}:Dy{sup 3+} phosphors are located in the white-light region. The results indicate that this kind of phosphor may has potential applications in the fields of near UV-excited and blue-excited white LEDs. - Graphical abstract: It can be seen from the SEM images that a pompon-like shape was obtained with an average diameter of about 1 {mu}m, and it is composed of many nanoflakes. Highlights: Black-Right-Pointing-Pointer Pompon-like NaLa(MoO{sub 4}){sub 2}:Dy{sup 3+} phosphors have been successfully prepared via a hydrothermal method. Black-Right-Pointing-Pointer Blue emission at 486 nm and yellow emission at 574 nm were obtained from the samples. Black-Right-Pointing-Pointer The yellow-to-blue emission intensity ratio (Y/B) can be changed with the doped concentration of Dy{sup 3+} ions. Black-Right-Pointing-Pointer NaLa(MoO{sub 4}){sub 2}:Dy{sup 3+} can be efficiently excited by the blue light and the near ultraviolet light.

  9. The effect of product formulation and homogenization on the physical properties of the milk-fat globule and acid milk gels

    E-Print Network [OSTI]

    Materon, Liliana

    2000-01-01T23:59:59.000Z

    . Polyoxyethylene sorbitan monolaurate (Sigma Chemical Co, St Louis, MO) or sorbitan monostearate (Sigma Chemical Co, St Louis, MO) were added at 0 5'lo w/w to two of the samples containing the blend of proteins The polyoxyethylene sorbitan monolaurate (Tween 20... was separated from the homogenized samples by centifugation at 10, 500 x g for 30 minutes at 20'C aAer addition of 28. 6 g of pure grade sucrose (Sigma Chemical Co, St Louis, MO) per 100 grams of sample to increase the difference in the density between...

  10. Laser welding and post weld treatment of modified 9Cr-1MoVNb steel.

    SciTech Connect (OSTI)

    Xu, Z. (Nuclear Engineering Division)

    2012-04-03T23:59:59.000Z

    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.

  11. Technical assumption for Mo-99 production in the MARIA reactor. Feasibility study

    SciTech Connect (OSTI)

    Jaroszewicz, J.; Pytel, K.; Dabkowski, L.; Krzysztoszek, G. [Institute of Atomic Energy, 05-400 Otwock-Swierk (Poland)

    2008-07-15T23:59:59.000Z

    The main objective of U-235 irradiation is to obtain the Tc-99m isotope which is widely used in the domain of medical diagnostics. The decisive factor determining its availability, despite its short life time, is a reaction of radioactive decay of Mo-99 into Tc- 99m. One of the possible sources of molybdenum can be achieved in course of the U-235 fission reaction. The paper presents activities and the calculations results obtained upon the feasibility study on irradiation of U-235 targets for production of molybdenum in the MARIA reactor. The activities including technical assumption were focused on performing calculation for modelling of the target and irradiation device as well as adequate equipment and tools for processing in reactor. It has been assumed that the basic component of fuel charge is an aluminium cladded plate with dimensions of 40x230x1.45 containing 4.7 g U-235. The presumed mode of the heat removal generated in the fuel charge of the reactor primary cooling circuit influences the construction of installation to be used for irradiation and the technological instrumentation. The outer channel construction for irradiation has to be identical as the standard fuel channel construction of the MARIA reactor. It enables to use the existing slab and reactor mounting sockets for the fastening of the molybdenum channel as well as the cooling water delivery system. The measurement of water temperature cooling a fuel charge and control of water flow rate in the channel can also be carried out be means of the standard instrumentation of the reactor. (author)

  12. Application of U10Mo Fuel for Space Fission Power Applications - White Paper

    SciTech Connect (OSTI)

    James Werner

    2014-07-01T23:59:59.000Z

    A novel reactor design has been proposed for space applications to provide hundreds of watts to one or two kilowatts of electrical power. The reactor concept proposed uses the alloy U10Mo (uranium with 10 weight percent molybdenum) as the fuel. This fuel was selected for its high uranium density, high thermal conductivity, and excellent neutronic characteristics for this application. The core is surrounded by a BeO reflector. Heat is carried from the reactor by liquid metal heat pipes. A shadow shield of LiH tungsten is also utilized to reduce the neutron and gamma radiation dose to the rest of the spacecraft. This design represents a best effort at minimizing the complexity of the fission system and reducing the mass of the system. The compact nature of the block UMo core and BeO radial reflector allows the reactor diameter to be as small as practical while still meeting the neutronic and thermal power demands. This directly results in a reduced shield mass since the reactor diameter dictates the footprint of the radiation shield. The use of heat pipes offers a straightforward primary heat transport approach using proven liquid-metal heat pipe technology. Further, the elimination of a liquid core coolant system heat transport components, both at the reactor side and radiator side, contributes to reducing the total part-count and lowering system mass. The proposed reactor is using a fuel that is being developed by DOE, but there are significant differences in the fuels enrichment, operating conditions and the physical shape of the fuel itself. This paper attempts to highlight some of the basic consideration and needs that would be expected to be met in developing this fuel and qualifying it for use.

  13. Nano-Scale Fission Product Phases in an Irradiated U-7Mo Alloy Nuclear Fuel

    SciTech Connect (OSTI)

    Dennis Keiser, Jr.; Brandon Miller; James Madden; Jan-Fong Jue; Jian Gan

    2014-09-01T23:59:59.000Z

    Irradiated nuclear fuel is a very difficult material to characterize. Due to the large radiation fields associated with these materials, they are hard to handle and typically have to be contained in large hot cells. Even the equipment used for performing characterization is housed in hot cells or shielded glove boxes. The result is not only a limitation in the techniques that can be employed for characterization, but also a limitation in the size of features that can be resolved The most standard characterization techniques include light optical metallography (WM), scanning electron microscopy (SEM), and electron probe microanalysis (EPMA). These techniques are applied to samples that are typically prepared using grinding and polishing approaches that will always generate some mechanical damage on the sample surface. As a result, when performing SEM analysis, for example, the analysis is limited by the quality of the sample surface that can be prepared. However, a new approach for characterizing irradiated nuclear fuel has recently been developed at the Idaho National Laboratory (INL) in Idaho Falls, Idaho. It allows for a dramatic improvement in the quality of characterization that can be performed when using an instrument like an SEM. This new approach uses a dual-beam scanning microscope, where one of the beams isa focused ion beam (FIB), which can be used to generate specimens of irradiated fuel (-10µm x 10µm) for microstructural characterization, and the other beam is the electron beam of an SEM. One significant benefit of this approach is that the specimen surface being characterized has received much less damage (and smearing) than is caused by the more traditional approaches, which enables the imaging of nanometer­ sized microstructural features in the SEM. The process details are for an irradiated low-enriched uranium (LEU) U-Mo alloy fuel Another type of irradiated fuel that has been characterized using this technique is a mixed oxide fuel.

  14. Prediction of strong adhesion at the MoSi2/Fe interface D.E. Jiang a

    E-Print Network [OSTI]

    Carter, Emily A.

    -1569, USA b Department of Mechanical and Aerospace Engineering and Program in Applied and Computational vessels and tub- ing, gas and oil pipelines, and gun barrels. The alloying of steel can improve its Cr coating (melting point 1857 °C) is used to protect gun tubes (which are made of low alloy steels

  15. Syntheses, structures, and properties of Ag{sub 4}(Mo{sub 2}O{sub 5})(SeO{sub 4}){sub 2}(SeO{sub 3}) and Ag{sub 2}(MoO{sub 3}){sub 3}SeO{sub 3}

    SciTech Connect (OSTI)

    Ling Jie [Department of Chemistry and Biochemistry, 179 Chemistry Building, Auburn University, Auburn, AL 36849 (United States); Albrecht-Schmitt, Thomas E. [Department of Chemistry and Biochemistry, 179 Chemistry Building, Auburn University, Auburn, AL 36849 (United States)], E-mail: albreth@auburn.edu

    2007-05-15T23:59:59.000Z

    Ag{sub 4}(Mo{sub 2}O{sub 5})(SeO{sub 4}){sub 2}(SeO{sub 3}) has been synthesized by reacting AgNO{sub 3}, MoO{sub 3}, and selenic acid under mild hydrothermal conditions. The structure of this compound consists of cis-MoO{sub 2} {sup 2+} molybdenyl units that are bridged to neighboring molybdenyl moieties by selenate anions and by a bridging oxo anion. These dimeric units are joined by selenite anions to yield zigzag one-dimensional chains that extended down the c-axis. Individual chains are polar with the C {sub 2} distortion of the Mo(VI) octahedra aligning on one side of each chain. However, the overall structure is centrosymmetric because neighboring chains have opposite alignment of the C {sub 2} distortion. Upon heating Ag{sub 4}(Mo{sub 2}O{sub 5})(SeO{sub 4}){sub 2}(SeO{sub 3}) looses SeO{sub 2} in two distinct steps to yield Ag{sub 2}MoO{sub 4}. Crystallographic data: (193 K; MoK{alpha}, {lambda}=0.71073 A): orthorhombic, space group Pbcm, a=5.6557(3), b=15.8904(7), c=15.7938(7) A, V=1419.41(12), Z=4, R(F)=2.72% for 121 parameters with 1829 reflections with I>2{sigma}(I). Ag{sub 2}(MoO{sub 3}){sub 3}SeO{sub 3} was synthesized by reacting AgNO{sub 3} with MoO{sub 3}, SeO{sub 2}, and HF under hydrothermal conditions. The structure of Ag{sub 2}(MoO{sub 3}){sub 3}SeO{sub 3} consists of three crystallographically unique Mo(VI) centers that are in 2+2+2 coordination environments with two long, two intermediate, and two short bonds. These MoO{sub 6} units are connected to form a molybdenyl ribbon that extends along the c-axis. These ribbons are further connected together through tridentate selenite anions to form two-dimensional layers in the [bc] plane. Crystallographic data: (193 K; MoK{alpha}, {lambda}=0.71073 A): monoclinic, space group P2{sub 1} /n, a=7.7034(5), b=11.1485(8), c=12.7500(9) A, {beta}=105.018(1) V=1002.7(2), Z=4, R(F)=3.45% for 164 parameters with 2454 reflections with I>2{sigma}(I). Ag{sub 2}(MoO{sub 3}){sub 3}SeO{sub 3} decomposes to Ag{sub 2}Mo{sub 3}O{sub 10} on heating above 550 deg. C. - Graphical abstract: A view of the one-dimensional [(Mo{sub 2}O{sub 5})(SeO{sub 4}){sub 2}(SeO{sub 3})]{sup 4-} chains that extend down the c-axis in the structure of Ag{sub 4}(Mo{sub 2}O{sub 5})(SeO{sub 4}){sub 2}(SeO{sub 3})

  16. JOURNAL DE PHYSIQUE Colloque C2, supplment au n 3, Tome 40, mars 1979, page C2-267 Fe MOSSBAUER STUDIES IN FeCoCr04 AND Fe2 Mo04 CUBIC SPINELS*

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    MOSSBAUER STUDIES IN FeCoCr04 AND Fe2 Mo04 CUBIC SPINELS* M.P. Guptat, S.M.Kanetkartt, S.K. Datettt, ACoCrOi, et FezMoOii, ont été déterminées à l'aide de la spectroscopie Mossbauer et la diffraction des rayons spi- nels, FeCoCrOi, and FeaMoOi, have been determined using Mossbauer and X-ray diffraction

  17. Progress and status of the IAEA coordinated research project: production of Mo-99 using LEU fission or neutron activation

    SciTech Connect (OSTI)

    Goldman, Ira N.; Adelfang, Pablo [Division of Nuclear Fuel Cycle and Waste Technology, International Atomic Energy Agency, Wagramer Strasse 5, P.O. Box 100, A-1400 Vienna (Austria)], E-mail: I.Goldman@iaea.org, E-mail: P.Adelfang@iaea.org; Ramamoorthy, Natesan [Division of Physical and Chemical Sciences, International Atomic Energy Agency, Wagramer Strasse 5, P.O. Box 100, A-1400 Vienna (Austria)], E-mail: N.Ramamoorthy@iaea.org

    2008-07-15T23:59:59.000Z

    Since late 2004, the IAEA has developed and implemented a Coordinated Research Project (CRP) to assist countries interested in initiating indigenous, small-scale production of Mo-99 to meet local nuclear medicine requirements. The objective of the CRP is to provide interested countries with access to non-proprietary technologies and methods to produce Mo-99 using LEU foil or LEU mini-plate targets, or for the utilization of n,gamma neutron activation, e.g. through the use of gel generators. The project has made further progress since the RERTR 2006 meeting, with a Technical Workshop on Operational Aspects of Mo99 Production held 28-30 November 2006 in Vienna and the Second Research Coordination Meeting held in Bucharest, Romania 16-20 April 2007. The paper describes activities carried out as noted above, and as well as the provision of LEU foils to a number of participants, and the progress by a number of groups in preparing for LEU target assembly and disassembly, irradiation, chemical processing, and waste management. The participants' progress in particular on thermal hydraulics computations required for using LEU targets is notable, as also the progress in gel generator plant operations in India and Kazakhstan. Poland has joined as a new research agreement holder and an application by Egypt to be a contract holder is undergoing internal review in the IAEA and is expected to be approved. The IAEA has also participated in several open meetings of the U.S. National Academy of Sciences Study on Producing Medical Radioisotopes without HEU, which will also be discussed in the paper. (author)

  18. Prediction and Monitoring Systems of Creep-Fracture Behavior of 9Cr-1Mo Steels for Teactor Pressure Vessels

    SciTech Connect (OSTI)

    Potirniche, Gabriel; Barlow, Fred D.; Charit, Indrajit; Rink, Karl

    2013-11-26T23:59:59.000Z

    A recent workshop on next-generation nuclear plant (NGNP) topics underscored the need for research studies on the creep fracture behavior of two materials under consideration for reactor pressure vessel (RPV) applications: 9Cr-1Mo and SA-5XX steels. This research project will provide a fundamental understanding of creep fracture behavior of modified 9Cr-1Mo steel welds for through modeling and experimentation and will recommend a design for an RPV structural health monitoring system. Following are the specific objectives of this research project: • Characterize metallurgical degradation in welded modified 9Cr-1Mo steel resulting from aging processes and creep service conditions. • Perform creep tests and characterize the mechanisms of creep fracture process. • Quantify how the microstructure degradation controls the creep strength of welded steel specimens. • Perform finite element (FE) simulations using polycrystal plasticity to understand how grain texture affects the creep fracture properties of welds. • Develop a microstructure-based creep fracture model to estimate RPVs service life . • Manufacture small, prototypic, cylindrical pressure vessels, subject them to degradation by aging, and measure their leak rates. • Simulate damage evolution in creep specimens by FE analyses. • Develop a model that correlates gas leak rates from welded pressure vessels with the amount of microstructural damage. • Perform large-scale FE simulations with a realistic microstructure to evaluate RPV performance at elevated temperatures and creep strength. • Develop a fracture model for the structural integrity of RPVs subjected to creep loads. • Develop a plan for a non-destructive structural health monitoring technique and damage detection device for RPVs.

  19. FREE ELECTRON LASERS AND HIGH-ENERGY ELECTRON COOLING* Vladimir N. Litvinenko, BNL, Upton, Long Island, NY, USA#

    E-Print Network [OSTI]

    two orders-of-magnitude. Two techniques offering the potential to cool high- energy hadron beamsFREE ELECTRON LASERS AND HIGH-ENERGY ELECTRON COOLING* Vladimir N. Litvinenko, BNL, Upton, Long Island, NY, USA# Yaroslav S. Derbenev, TJNAF, Newport News, VA, USA) Abstract Cooling intense high

  20. Proceedings of ASME 2010 4th International Conference on Energy Sustainability May 17-22, 2010 Phoenix, Arizona, USA

    E-Print Network [OSTI]

    Agogino, Alice M.

    1 Proceedings of ASME 2010 4th International Conference on Energy Sustainability ES2010 May 17 International Conference on Energy Sustainability ES2010 May 17-22, 2010, Phoenix, Arizona, USA ES2010- 0 #12-22, 2010 Phoenix, Arizona, USA ES2010-90190 CO-DESIGN OF ENERGY-EFFICIENT HOUSING WITH THE PINOLEVILLE