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1

Ageing and Toughness of a Mn-Ni-Mo PWR Steel  

Science Conference Proceedings (OSTI)

Abstract Scope, Mn-Ni-Mo steels are widely used in the fabrication of pressurisers, steam generators and pressure vessels of pressurised water reactors (PWR).

2

ON THE COMPETITION BETWEEN FERROMAGNETIC AND ANTIFERROMAGNETIC STATES IN Sr2MnMoO6  

E-Print Network (OSTI)

It is argued that the magnetic behavior of Sr2MnMoO6 is determined by the existence of two total energy minima corresponding to the metallic ferromagnetic and insulating antiferromagnetic states, which may be nearly degenerate depending on the magnitude of the breathing distortion. PACS: 71.20.Be; 71.70.Gm; 72.25.Ba; 75.30.Et

I. V. Solovyev

2002-01-01T23:59:59.000Z

3

NE-23,  

Office of Legacy Management (LM)

t:"'. ? - ' t:"'. ? - ' y5 NE-23, wk$& Dr. Joseph A. Warburton Chainnan, Radiological and Toxicological Safety Board University of Nevada System DRI/ASC, P.O. Box 60220 Reno, Nevada 89506 Dear Dr. Warburton: The Department of Energy (DOE), as part of its Formerly Utilized Sites Remedial Action Program (FUSRAP), has reviewed information on the Mackay School of M ines facility at the University of Nevada, Reno, Nevada, to determine whether it contains residual radioactivity traceable to activities conducted on behalf of the Atomic Energy Commission (a predecessor to DOE). A radiological survey indicated that the radiation levels at the involved portion of the facility are at or near background levtrls. Therefore, no remedial action is required, and DGE is eliminating

4

NE-24  

Office of Legacy Management (LM)

VW- VW- 50 "id AU6 3 1983 NE-24 .' . _ : ' : R&D Decontamination Projects Under the Formerly Utilized Sites Remedial Actlon Program (FUSRAP) '_ F .- ,: 'J,.LaGrone, Manager . Oak Ridge Operations Office As a result of the House-Senate Conference Report and the Energy and Water Appropriations Act for FY 1984, and based on the data in the attached reports indicating radioactive contamination in excess of acceptable guidelines, the sites listed in the attachment and their respective vicinity properties (contaminated with radioactive materials from these sites) are being designated as decontamination research and development projects under the FUSRAP. Each site and the associated vicinity properties should be treated as a separate project. The objective of each project is to decontaminate the vicinity properties

5

NE-20  

Office of Legacy Management (LM)

hi v. !&-2:. hi v. !&-2:. /qL lo 1 OCT 2 9 1984 NE-20 -. Authorization for Remedial Action of the Ashland 2 Site, Tonawanda, New York f! Joe LaGrone, Manager Oak Ridge Operations Office Based on the Aerial Radiological Survey (Attachment 1) and a "walk-on" radiologlcal survey (Attachment 2 , excerpted from the ORNL draft report "Ground-Level Investigation of Anomalous Gamma Radiation Levels in the Tonawanda, New York, Area," January 1980), the property identified as Ashland 2 is authorized for remedial action. It should be noted that the attached survey data are for designation purposes only and Bechtel National, Inc. (EM), should conduct appropriate comprehensive characterization surveys to determine the extent and magnitude of the

6

NE Blog Archive  

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

ne/blog-archive 1000 Independence Ave. SWWashington DC ne/blog-archive 1000 Independence Ave. SWWashington DC 20585202-586-5000 en Generation IV International Forum Updates Technology Roadmap and Builds Future Collaboration http://energy.gov/ne/articles/generation-iv-international-forum-updates-technology-roadmap-and-builds-future ne/articles/generation-iv-international-forum-updates-technology-roadmap-and-builds-future" class="title-link">Generation IV International Forum Updates Technology Roadmap and Builds Future Collaboration

7

MiniBooNE  

SciTech Connect

To begin, we examine the relationship between MiniBooNE and the neutrino beam geometry at Fermilab. In Figure 1, a schematic representation is shown of the plan view of the location of MiniBooNE relative to SciBooNE and the NuMI target, where it can be seen that SciBooNE and MiniBooNE share the same beamline and neutrino flux, and therefore share some of the same systematic effects -- A combined analysis between the two experimental groups could yield a superior result compared to segregated individual analysis. MiniBooNE makes an angle of 6.3 degrees with the NuMI beamline, an off-axis measurement if you will, that provides a relatively high yield of electron neutrinos from kaon decay. Furthermore, the proton beam incident on the MiniBooNE target possesses a 53 MHz structure that will be important in timing studies related to the low energy excess. Let's review of the results of the MiniBooNE: As is well known, MiniBooNE, a test of the LSND effect [1], adds experimental inspiration to the possible existence of new phenomena; although two neutrino-family oscillations were shown to be an unlikely candidate to explain the LSND effect, a low energy excess of 3.0 sigma in the neutrino sector at energies between 200 to 475 MeV [2] - an effect that appears to have no counterpart in the antineutrino sector [3], combined with the 3.8 sigma LSND result - at roughly 50 MeV - strains phenomenology for insight. Miniboones continues to run and collect antineutrino data; will combine disappearance analysis with SciBooNE; take data from the NuMI target, an unusual source with a potentially new look at the low energy anomaly; and use beam timing techniques to further constrain phenomenological models. In this paper we will review current topics related to MiniBooNE and other associated experiments and phenomenology.

Stefanski, Ray; /Fermilab

2009-10-01T23:59:59.000Z

8

Eliyahu Ne'eman  

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

Eliyahu Ne'eman Eliyahu Ne'eman Consulting Engineer on Lighting and Daylighting Lawrence Berkeley National Laboratory This speaker was a visiting speaker who delivered a talk or talks on the date(s) shown at the links below. This speaker is not otherwise associated with Lawrence Berkeley National Laboratory, unless specifically identified as a Berkeley Lab staff member. Eliyahu Ne'eman is a leading international expert on lighting and daylighting. He has been involved in education, research and practice for over 40 years while working in Israel, UK, Germany and the US(LBNL). He has worked extensively in the area of occupant response in luminous spaces and he has been leading the CIE Task Group that has revised the CIE Museum Lighting Guide. This Speaker's Seminars Control of Damage to Museum Objects by Optical Radiation

9

Electrochemical Studies of Passive Film Stability on Fe49.7Cr17.7Mn1.9Mo7.4W1.6B15.2C3.8Si2.4 Amorphous Metal in Seawater at 90oCElectrochemical Studies of Passive Film Stability on Fe49.7Cr17.7Mn1.9Mo7.4W1.6B15.2C3.8Si2.4 Amorphous Metal in Seawater at 9  

Science Conference Proceedings (OSTI)

An iron-based amorphous metal, Fe{sub 49.7}Cr{sub 17.7}Mn{sub 1.9}Mo{sub 7.4}W{sub 1.6}B{sub 15.2}C{sub 3.8}Si{sub 2.4} (SAM2X5), with very good corrosion resistance was developed. This material was prepared as a melt-spun ribbon, as well as gas atomized powder and a thermal-spray coating. During electrochemical testing in several environments, including seawater at 90 C, the passive film stability was found to be comparable to that of high-performance nickel-based alloys, and superior to that of stainless steels, based on electrochemical measurements of the passive film breakdown potential and general corrosion rates. This material also performed very well in standard salt fog tests. Chromium (Cr), molybdenum (Mo) and tungsten (W) provided corrosion resistance, and boron (B) enabled glass formation. The high boron content of this particular amorphous metal made it an effective neutron absorber, and suitable for criticality control applications. This material and its parent alloy maintained corrosion resistance up to the glass transition temperature, and remained in the amorphous state during exposure to relatively high neutron doses.

Farmer, J C; Haslam, J; Day, S D; Lian, T; Saw, C K; Hailey, P D; Choi, J S; Rebak, R B; Yang, N; Payer, J H; Perepezko, J H; Hildal, K; Lavernia, E J; Ajdelsztajn, L; Branagan, D J; Buffa, E J; Aprigliano, L F

2007-04-25T23:59:59.000Z

10

Quantification of corrosion resistance of a new-class of criticality control materials: thermal-spray coatings of high-boron iron-based amorphous metals - Fe49.7Cr17.7Mn1.9Mo7.4W1.6B15.2C3.8Si2.4  

Science Conference Proceedings (OSTI)

An iron-based amorphous metal, Fe{sub 49.7}Cr{sub 17.7}Mn{sub 1.9}Mo{sub 7.4}W{sub 1.6}B{sub 15.2}C{sub 3.8}Si{sub 2.4} (SAM2X5), with very good corrosion resistance was developed. This material was produced as a melt-spun ribbon, as well as gas atomized powder and a thermal-spray coating. Chromium (Cr), molybdenum (Mo) and tungsten (W) provided corrosion resistance, and boron (B) enabled glass formation. The high boron content of this particular amorphous metal made it an effective neutron absorber, and suitable for criticality control applications. Earlier studies have shown that ingots and melt-spun ribbons of these materials have good passive film stability in these environments. Thermal spray coatings of these materials have now been produced, and have undergone a variety of corrosion testing, including both atmospheric and long-term immersion testing. The modes and rates of corrosion have been determined in the various environments, and are reported here.

Farmer, J C; Choi, J S; Shaw, C K; Rebak, R; Day, S D; Lian, T; Hailey, P; Payer, J H; Branagan, D J; Aprigliano, L F

2007-03-28T23:59:59.000Z

11

Category:Omaha, NE | Open Energy Information  

Open Energy Info (EERE)

Omaha, NE Omaha, NE Jump to: navigation, search Go Back to PV Economics By Location Media in category "Omaha, NE" The following 16 files are in this category, out of 16 total. SVFullServiceRestaurant Omaha NE Omaha Public Power District.png SVFullServiceRestauran... 63 KB SVHospital Omaha NE Omaha Public Power District.png SVHospital Omaha NE Om... 61 KB SVLargeHotel Omaha NE Omaha Public Power District.png SVLargeHotel Omaha NE ... 61 KB SVLargeOffice Omaha NE Omaha Public Power District.png SVLargeOffice Omaha NE... 63 KB SVMediumOffice Omaha NE Omaha Public Power District.png SVMediumOffice Omaha N... 65 KB SVMidriseApartment Omaha NE Omaha Public Power District.png SVMidriseApartment Oma... 62 KB SVOutPatient Omaha NE Omaha Public Power District.png SVOutPatient Omaha NE ...

12

NE-23 W  

Office of Legacy Management (LM)

>:-1. ,- '"CC3 >:-1. ,- '"CC3 . ' NE-23 .+ W h itm~ l-l& Mr. Victor 3. Canilov, Director Museum of Science and Industry East 57th Street and Lake Shore Drive Chicago, Illinois 60037 Dear kr. Danilov: The Department of Energy (DOE), as part of its Formerly Utilized Sites Remedial Action Program (FUSPSIP), has reviewed information on the Museum cf Science and Industry, Chicago, Illinois, to determine whether it contains residual radioactivity traceable to activities conducted on behalf of the Manhattan Engineer District or the Atomic Energy C o m m ission (predecessors to DOE). A radiological survey indicated that the radiation levels are equal to natural background. Therefore, no remedial action is required, ant DOE is eliminating the Museum of Science and Industry from further

13

Long-Term Corrosion Tests of Prototypical SAM2X5 (Fe49.7Cr17.7Mn1.9Mo7.4W1.6B15.2C3.8Si2.4) Coatings  

Science Conference Proceedings (OSTI)

An iron-based amorphous metal with good corrosion resistance and a high absorption cross-section for thermal neutrons has been developed and is reported here. This amorphous alloy has the approximate formula Fe{sub 49.7}Cr{sub 17.7}Mn{sub 1.9}Mo{sub 7.4}W{sub 1.6}B{sub 15.2}C{sub 3.8}Si{sub 2.4} and is known as SAM2X5. Chromium (Cr), molybdenum (Mo) and tungsten (W) were added to provide corrosion resistance, while boron (B) was added to promote glass formation and the absorption of thermal neutrons. Since this amorphous metal has a higher boron content than conventional borated stainless steels, it provides the nuclear engineer with design advantages for criticality control structures with enhanced safety. While melt-spun ribbons with limited practical applications were initially produced, large quantities (several tons) of gas atomized powder have now been produced on an industrial scale, and applied as thermal-spray coatings on prototypical half-scale spent nuclear fuel containers and neutron-absorbing baskets. These prototypes and other SAM2X5 samples have undergone a variety of corrosion testing, including both salt-fog and long-term immersion testing. The modes and rates of corrosion have been determined in the various environments, and are reported here. While these coatings have less corrosion resistance than melt-spun ribbons and optimized coatings produced in the laboratory, substantial corrosion resistance has been achieved.

Farmer, J C; Choi, J S; Saw, C K; Rebak, R H; Day, S D; Lian, T; Hailey, P D; Payer, J H; Branagan, D J; Aprigliano, L F

2007-05-10T23:59:59.000Z

14

US NE MA Site Consumption  

Gasoline and Diesel Fuel Update (EIA)

NE MA NE MA Site Consumption million Btu $0 $500 $1,000 $1,500 $2,000 $2,500 $3,000 US NE MA Expenditures dollars ALL ENERGY average per household (excl. transportation) 0 2,000 4,000 6,000 8,000 10,000 12,000 US NE MA Site Consumption kilowatthours $0 $250 $500 $750 $1,000 $1,250 $1,500 US NE MA Expenditures dollars ELECTRICITY ONLY average per household * Massachusetts households use 109 million Btu of energy per home, 22% more than the U.S. average. * The higher than average site consumption results in households spending 22% more for energy than the U.S. average. * Less reliance on electricity for heating, as well as cool summers, keeps average site electricity consumption in the state low relative to other parts of the U.S. However, spending on electricity is closer to the national average due to higher

15

US NE MA Site Consumption  

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

NE MA NE MA Site Consumption million Btu $0 $500 $1,000 $1,500 $2,000 $2,500 $3,000 US NE MA Expenditures dollars ALL ENERGY average per household (excl. transportation) 0 2,000 4,000 6,000 8,000 10,000 12,000 US NE MA Site Consumption kilowatthours $0 $250 $500 $750 $1,000 $1,250 $1,500 US NE MA Expenditures dollars ELECTRICITY ONLY average per household * Massachusetts households use 109 million Btu of energy per home, 22% more than the U.S. average. * The higher than average site consumption results in households spending 22% more for energy than the U.S. average. * Less reliance on electricity for heating, as well as cool summers, keeps average site electricity consumption in the state low relative to other parts of the U.S. However, spending on electricity is closer to the national average due to higher

16

CA Mr. Andrew Wallo, III, NE-23  

Office of Legacy Management (LM)

?9OQ, 95.5 L'E&nt Plaza, SW.. W.ashin@.m, D.C. 20024.2174, Tekphone: (202) 488AQOO ?9OQ, 95.5 L'E&nt Plaza, SW.. W.ashin@.m, D.C. 20024.2174, Tekphone: (202) 488AQOO 7117-03.B7.cdy.43 23 September 1987 CA Mr. Andrew Wallo, III, NE-23 Division of Facility & Site Decommissioning Projects U.S. Oepartment of Energy Germantown, Maryland 20545 Dear Mr. Wallo: ELIMINATION RECOMMENDATION -- COLLEGES AND UNIVERSITIES zh/ ! o-01 lM!tl5 ML)!o-05 PI 77!0> The attached elimination recoannendation was prepared in accordance . -1 rlL.0~ with your suggestion during our meeting on 22 September. The recommendation flD.o-02 includes 26 colleges and universities identified~in Enclosure 4 to Aerospace letter subject: Status of Actions - FUSRAP Site List, dated MO.07. 27 May 1987; three institutions (Tufts College, University of Virginia, UCIIOJ and the University of Washington) currently identified on the FUSRAP

17

MoWitt  

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

MoWiTT: Mobile Window Thermal Test Facility The window has come a long way since the days when it was a single pane of glass in a wood frame. Low-emissivity windows were designed...

18

Overview of NE Research Programs  

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

NE Research Programs NE Research Programs Sue Lesica Office of Nuclear Energy U.S. Department of Energy July 31, 2013 2 R&D Budgets FY 2013 FY 2014 Congressional Request House Mark Senate Mark SMR Licensing Technical Support 62,999 70,000 110,000 70,000 Small Modular Reactor R&D 23,958 20,000 20,000 20,000 Next Generation Nuclear Plant 38,720 0 0 0 LWR Sustainability 24,218 21,500 21,500 21,500 Advanced Reactor Concepts 21,178 31,000 45,000 21,000 Reactor Concepts RD&D 108,075 72,500 86,500 62,500 Modeling and Simulation Hub 24,588 24,300 24,300 24,300 Crosscutting Technology Development 17,242 13,901 27,885 25,437 NEAMS 13,646 9,536 National Scientific Users Facility 14,563 14,563 14,563 14,563 Nuclear Energy Enabling Technologies 70,040 62,300 66,748 62,300

19

NE - Nuclear Energy - Energy Conservation Plan  

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

NUCLEAR ENERGY (NE) NUCLEAR ENERGY (NE) ENERGY CONSERVATION PLAN NE has heavily emphasized the use of flexiplace, both regular and situational. Since approximately 56 percent of NE staff use flexiplace, our plan is based on the Forrestal/Germantown (FORS/GTN) office spaces, and flexiplace office space. There are other common sense actions and policies that will be used to improve energy efficiency in the offices at both FORS and GTN. In the FORS/GTN office space: 1. Use flexiplace to the maximum extent possible. Saving an average of 1.5 gallons of gasoline per day per person (e.g., 13 miles per work x 2 = 26 miles, an average of 17 mpg), on a normal workday, NE employees save (56 percent of 145 = 71 times 1.2 days per pay period = 85.2 workdays x 1.5 gals = 127.8 gallons/pay

20

Thermodynamic Assessment of Ce-Mo, Mo-La, Mo-Y, Ce-V, La-V ...  

Science Conference Proceedings (OSTI)

In this work, six binary systems, Ce-Mo, Mo-La, Mo-Y, Ce-V, La-V and V-Y were thermodynamically assessed based on available experimental data in the...

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


21

US WNC MO Site Consumption  

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

WNC MO WNC MO Site Consumption million Btu $0 $500 $1,000 $1,500 $2,000 $2,500 US WNC MO Expenditures dollars ALL ENERGY average per household (excl. transportation) 0 3,000 6,000 9,000 12,000 15,000 US WNC MO Site Consumption kilowatthours $0 $300 $600 $900 $1,200 $1,500 US WNC MO Expenditures dollars ELECTRICITY ONLY average per household * Missouri households consume an average of 100 million Btu per year, 12% more than the U.S. average. * Average household energy costs in Missouri are slightly less than the national average, primarily due to historically lower residential electricity prices in the state. * Missouri homes are typically larger than homes in other states and are more likely to be attached or detached single-family housing units.

22

MoS2  

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

4 4 Myriam Perez De la Rosa1, Gilles Berhault2, Apurva Mehta3, and Russell R. Chianelli1 1University of Texas at El Paso, Materials Research Technology Institute, El Paso, TX 2Institut de Recherches sur la Catalyse, CNRS, Villeurbanne cedex, France 3Stanford Synchrotron Radiation Laboratory, Menlo Park, CA Figure 1: MoS2 layered structure. As the world economy continues to expand the demand for petroleum based fuel increases and the price of these fuels rises. The rising price of fuel has another consequence: refiners tend to purchase cheaper fuels of poorer quality. These poor quality fuels contain increasing amounts of sulfur and other pollutants leading to a decline in air quality worldwide. A recent New York Times article described the major impact a growing Chinese economy

23

Interatomic Coulombic decay following Ne 1s Auger decay in NeAr  

SciTech Connect

Using momentum-resolved electron-ion multicoincidence spectroscopy, we have investigated interatomic Coulombic decay (ICD) in the heteronuclear NeAr dimer following Ne 1s Auger decay. The measured intensity ratio for the three ICD transitions Ne{sup 2+}(2s{sup -1}2p{sup -1} {sup 1}P)Ar to Ne{sup 2+}(2p{sup -2} {sup 1}S)-Ar{sup +}(3p{sup -1}), Ne{sup 2+}(2s{sup -1}2p{sup -1} {sup 1}P)Ar to Ne{sup 2+}(2p{sup -2} {sup 1}D)-Ar{sup +}(3p{sup -1}), and Ne{sup 2+}(2s{sup -1}2p{sup -1} {sup 3}P)Ar to Ne{sup 2+}(2p{sup -2} {sup 3}P)-Ar{sup +}(3p{sup -1}) reasonably agree with predictions. The kinetic energy release distribution for the fragmentation to Ne{sup 2+}(2p{sup -2} {sup 1}D)-Ar{sup +}(3p{sup -1}) after the ICD transition from singlet Ne{sup 2+}(2s{sup -1}2p{sup -1} {sup 1}P)Ar state, which is a mirror image of the kinetic energy distribution of the emitted ICD electrons, suggests that the corresponding ICD rate is roughly two times lower than predicted by ab initio calculations.

Ouchi, T.; Sakai, K.; Fukuzawa, H.; Ueda, K. [Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577 (Japan); Higuchi, I.; Tamenori, Y. [Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198 (Japan); Demekhin, Ph. V.; Chiang, Y.-C.; Stoychev, S. D.; Kuleff, A. I. [Theoretische Chemie, Universitaet Heidelberg, D-69120 Heidelberg (Germany); Mazza, T. [Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577 (Japan); Cimaina and Dipartimento di Fisica, Universita degli Studi di Milano, via Celoria 16, I-20133 Milano (Italy); Schoeffler, M. [Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Nagaya, K.; Yao, M. [Department of Physics, Kyoto University, Kyoto 606-8502 (Japan); Saito, N. [National Institute of Advanced Industrial Science and Technology, National Meteorology Institute of Japan, Tsukuba 305-8568 (Japan)

2011-05-15T23:59:59.000Z

24

NE SARE Arbuscular Mycorrhiza Research following canola  

E-Print Network (OSTI)

NE SARE Arbuscular Mycorrhiza Research Corn grown following canola Corn grown following soybeans The planting of canola, a non-mycorrhizal crop, has been shown to reduce arbuscular mycorrhizal fungi following canola. To address this problem, we intercropped canola with oats, a mycorrhizal crop

Kaye, Jason P.

25

Compaction and Sintering of Mo Powders  

SciTech Connect

To support the development of Mo-99 production by NorthStar Medical Technologies, LLC, Mo metal powders were evaluated for compaction and sintering characteristics as they relate to Mo-100 accelerator target disk fabrication. Powders having a natural isotope distribution and enriched Mo-100 powder were examined. Various powder characteristics are shown to have an effect on both the compaction and sintering behavior. Natural Mo powders could be cold pressed directly to >90% density. All of the powders, including the Mo-100 samples, could be sintered after cold pressing to >90% density. As an example, a compacted Mo-100 disk reached 89.7% density (9.52 g/cm3) after sintering at 1000 C for 1 hr. in flowing Ar/4%H2. Higher sintering temperatures were required for other powder samples. The relationships between processing conditions and the resulting densities of consolidated Mo disks will be presented.

Nunn, Stephen D [ORNL; Kiggans, Jim [ORNL; Bryan, Chris [ORNL

2013-01-01T23:59:59.000Z

26

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

Office of Legacy Management (LM)

Airport - MO 01 Airport - MO 01 FUSRAP Considered Sites St. Louis Airport, MO Alternate Name(s): Airport Site St. Louis Airport Storage Site (SLAPS) Former Robertson Storage Area Robertson Airport MO.01-1 MO.01-2 Location: Brown Road, Robertson, Missouri MO.01-2 Historical Operations: Stored uranium process residues containing uranium, radium, and thorium for the MED and AEC. MO.01-2 MO.01-3 MO.01-4 Eligibility Determination: Eligible MO.01-1 MO.01-7 Radiological Survey(s): Assessment Surveys MO.01-4 MO.01-5 Site Status: Cleanup in progress by U.S. Army Corps of Engineers. MO.01-6 USACE Website Long-term Care Requirements: To be determined upon completion. Also see Documents Related to St. Louis Airport, MO MO.01-1 - DOE Memorandum; Coffman to LaGrone; Subject: Authorization

27

NE Blog Archive | Department of Energy  

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

Blog Archive Blog Archive NE Blog Archive RSS December 31, 2013 GIF Policy Group Meeting in Brussels, Belgium, November 2013 Generation IV International Forum Updates Technology Roadmap and Builds Future Collaboration The Generation IV International Forum (GIF) held its 36th Policy Group (PG) meeting on November 21-22 in Brussels, Belgium. The PG reviewed progress on a number of on-going actions and received progress reports from the GIF Experts Group (EG) and the GIF Senior Industry Advisory Panel (SIAP). December 12, 2013 The basics of small modular reactor technology explained. | Infographic by Sarah Gerrity, Energy Department. Advancing Small Modular Reactors: How We're Supporting Next-Gen Nuclear

28

Microsoft PowerPoint - NE- Milton  

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

University University Program (NEUP) Presentation to Vice Presidents of Research and Development of Historically Black Colleges and Universities Ingrid M. Milton Department of Energy Office of Nuclear Energy July 9, 2009 195725 (2) Overview The Office of Nuclear Energy (NE) is committed to strengthening the Nation's educational programs in nuclear science and engineering. * Established the Nuclear Energy University Program (NEUP). * Award grants and contracts through competitive selection process. NEUP enables universities to maintain and expand their nuclear science curriculum and programs to ensure future availability of technical experts for U.S. nuclear programs. * NEUP is managed by the Center for Advanced Energy Studies (CAES). 2 195725 (3) Nuclear Energy University Program -

29

Effect of supplementation on vitamin A and zinc nutriture of children in northeast (NE) Thailand  

SciTech Connect

Previous surveys of the nutritional status of young children in NE Thailand suggested that they may benefit from vitamin A (VA) and/or zinc (Zn) supplementation. 140 children, with low plasma retinol concentrations were entered in a double-blind study. They were randomized and supplemented with either VA, Zn, VA + Zn or placebo each weekday for 6 mos. All subjects consumed their usual diet that provided adequate protein, less than recommended calories, fat, Zn and VA. Biochemical indices of VA and Zn status increased significantly. The children had adequate VA liver stores as assessed by relative dose response. Zn supplementation resulted in improvement of vision restoration time in dim light using rapid dark adaptometry. VA and Zn synergistically normalized conjunctival epithelium after a 6 mo supplementation. Data suggest that functional improvements of populations with suboptimal VA and Zn nutriture can be accomplished by supplementation with {lt}2 times of RDA of these nutrients.

Udomkesmalee, E.; Dhanamitta, S.; Charoenklatkul, S.; Tantipopipat, S.; Banjong, O.; Rojroongwasinkul, N.; Kramer, T.R.; Smith, J.C. Jr. (Mahidol Univ., Nakhon Pathom (Thailand) USDA, Beltsville, MD (United States))

1991-03-11T23:59:59.000Z

30

ASHRAE 2000 Annual Meeting, June 24-28, 2000, Minneapolis, MN, and published in ASHRAE Transactions, 106(2) 2000.  

E-Print Network (OSTI)

LBNL-44422 Mo-420 ASHRAE 2000 Annual Meeting, June 24-28, 2000, Minneapolis, MN, and published in ASHRAE Transactions, 106(2) 2000. This work was supported by the Assistant Secretary for Energy-factors of predominantly planar, vertical windows has been made by both ASHRAE and NFRC, and as increasing consensus has

31

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

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

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

32

NE Press Releases | Department of Energy  

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

Press Releases Press Releases NE Press Releases RSS December 12, 2013 Energy Department Announces New Investment in Innovative Small Modular Reactor The Energy Department tannounced an award to NuScale Power LLC to support a new project to design, certify and help commercialize innovative small modular reactors in the United States. November 12, 2013 Public Invited to Comment on Draft Environmental Assessment for the Resumption of Transient Testing of Nuclear Fuels and Materials The U.S. Department of Energy invites the public to read and comment on a draft environmental assessment it has prepared for a proposal to resume transient testing of nuclear fuels and materials at either Idaho National Laboratory (INL) or Sandia National Laboratories (SNL). November 4, 2013 Factsheet: Second Meeting of the United States-Japan Bilateral Commission

33

Notices 888 First Street, NE., Washington, DC  

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

11 Federal Register 11 Federal Register / Vol. 76, No. 122 / Friday, June 24, 2011 / Notices 888 First Street, NE., Washington, DC 20426. The filings in the above-referenced proceeding are accessible in the Commission's eLibrary system by clicking on the appropriate link in the above list. They are also available for review in the Commission's Public Reference Room in Washington, DC. There is an eSubscription link on the Web site that enables subscribers to receive e-mail notification when a document is added to a subscribed docket(s). For assistance with any FERC Online service, please e-mail FERCOnlineSupport@ferc.gov or call (866) 208-3676 (toll free). For TTY, call (202) 502-8659. Dated: June 20, 2011. Kimberly D. Bose, Secretary. [FR Doc. 2011-15859 Filed 6-23-11; 8:45 am]

34

Notices 888 First Street NE., Washington, DC  

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

53 Federal Register 53 Federal Register / Vol. 78, No. 56 / Friday, March 22, 2013 / Notices 888 First Street NE., Washington, DC 20426. This filing is accessible on-line at http://www.ferc.gov, using the ''eLibrary'' link and is available for review in the Commission's Public Reference Room in Washington, DC. There is an ''eSubscription'' link on the Web site that enables subscribers to receive email notification when a document is added to a subscribed docket(s). For assistance with any FERC Online service, please email FERCOnlineSupport@ferc.gov, or call (866) 208-3676 (toll free). For TTY, call (202) 502-8659. Comment Date: 5:00 p.m. Eastern Time on April 2, 2013. Dated: March 15, 2013. Kimberly D. Bose, Secretary. [FR Doc. 2013-06602 Filed 3-21-13; 8:45 am] BILLING CODE 6717-01-P

35

Mr. Andrew Wallo, III, NE-23  

Office of Legacy Management (LM)

suite 7900,955 L%l/onr Plaza, S. W., Washingion, D.C. 20024.?174,, Telephone: (202) 488.~ suite 7900,955 L%l/onr Plaza, S. W., Washingion, D.C. 20024.?174,, Telephone: (202) 488.~ Mr. Andrew Wallo, III, NE-23 Division of Facility & Site Decommissioning Projects U.S. Department of Energy Germantown, Maryland 20545 7117~03.87.dy.43 23 September 1987 I j / Dear Mr. Wallo: I ELIMINATION RECOMMENDATION -- COLLEGES AND UN&ITIES I . The attached elimination recommendation was prepared in accordance with your suggestion during our meeting on 22 September!. The recommend includes 26 colleges and universities identified,in Enclosure 4 to Aerospace letter subject: Status of Actions 27 May 1987; three institutions (Tufts and the University of Washington) currently list of sites under consideration; and six institutions tified during a search of Hanford records.

36

M r. Andrew Wallo, III, NE-23  

Office of Legacy Management (LM)

300.955 L*Enfom Plaza, S. Iv.. Washrhington. D.C. 200242174, Tekphonc (202) 300.955 L*Enfom Plaza, S. Iv.. Washrhington. D.C. 200242174, Tekphonc (202) 7117-03.87.cdy.43 23 September 1987 M r. Andrew Wallo, III, NE-23 Division of Facility & Site Deconnnissioning Projects U.S. Department of Energy Germantown, Maryland 20545 Dear M r. Wallo: ELIMINATION RECOMMENDATION -- COLLEGES AND UNIVERSITIES The attached elimination recommendation was prepared in accordi with your suggestion during our meeting on 22 September. The reconu includes 26 colleges and universities identified.in Enclosure 4 to Aerospace letter subject: Status of Actions - FUSRAP Sites List, da: 27 May 1987; three institutions.(Tufts College, University of Virgil and the University of Washington) currently identified'on the FUSFN list of sites under consideration; and six.institutions recently idI

37

Mr. Andrew Wallo, III, NE-23  

Office of Legacy Management (LM)

9% L'Enfam Plaza, S, W.. Warhin@on, D.C. 2002ijl74j Tekphow (202) 488ddO 9% L'Enfam Plaza, S, W.. Warhin@on, D.C. 2002ijl74j Tekphow (202) 488ddO 7117-03.87.cdy.'i3 23 September 1967 ~ s ~ Mr. Andrew Wallo, III, NE-23 Oivision of Facility & Site Decommissioning Projects U.S. Department of Energy Germantown, Maryland 20545 Dear Mr. Wallo: ELIMINATION RECOMMENDATION -- COLLEGES AND IJNIVFRSITIES , The attached elimination reconnnendation was prepar!ad in accordance with your suggestion during our meeting on 22 September! The recommendation includes 26 colleges and universities identified,in Enclosure 4 to Aerospace letter subject: Status of Actions - FUSRAP Site List, dated 27 May 1987; three institutions (Tufts College, University of Virginia, and the University of Washington) currently identified!on ithe FUSRAP list of sites under consideration; and six institutions recently iden-

38

REPLY TO ATTN OF NE-301  

Office of Legacy Management (LM)

N\I&?' d,' g N\I&?' d,' g 4 DATE. fdov 2 5 1980 REPLY TO ATTN OF NE-301 .* - memoraadu SUBJECT Remedial Action for Linde Air Products Plant, Tonawanda, New York TO W. E. Mott, EV In view of the General Counsel's reconsideration of the authority to proceed with remedial action on this site and your determination that remedial action is needed to protect the public health and safety, we will include this site in our program for remedial action. of this memorandum. Oak Ridge is requested to do so by copy I am somewhat surprised at the urgency of remedial action which you implied in your memorandum since your previous memorandum designating this site stated that it has a low priority. The site radiological survey report DOE/EV-005/5 concludes that air and water contamination were below the non-occupational

39

MiniBooNE Oscillation Results 2011  

SciTech Connect

The MiniBooNE neutrino oscillation search experiment at Fermilab has recently updated results from a search for {bar {nu}}{sub {mu}} {yields} {bar {nu}}{sub e} oscillations, using a data sample corresponding to 8.58 x 10{sup 20} protons on target in anti-neutrino mode. This high statistics result represent an increase in statistics of 52% compared to result published in 2010. An excess of 57.7 {+-} 28.5 events is observed in the energy range 200 MeV < E{sub {nu}} < 3000 MeV. The data favor LSND-like {bar {nu}}{sub {mu}} {yields} {bar {nu}}{sub e} oscillations over a background only hypothesis at 91.1% confidence level in the energy range 475 < E{sub {nu}} < 3000 MeV.

Djurcic, Zelimir

2012-01-01T23:59:59.000Z

40

NE-23 List of California Sites NE-23 Hattie Car-well, SAN/NSQA Division  

Office of Legacy Management (LM)

NE-23 NE-23 Hattie Car-well, SAN/NSQA Division Attached for your information is the list of California sites we identified in our search of Manhattdn Engineer District records for the Formerly Utilized Sites Remedial Action Program (FUSRAP). None of the facilities listed qualified"fbr'FUSRAP:'~- The only site in California,that was included in FUSRAP was Gilman Hall on the University of California-Berkeley Campus. All California sites that are in our Surplus Facilities Management Prcgram are under San Francisco Operations and are at the Santa Susana Field Laboratory or the University of California-Davis. If you have questions on any of the sites on the list, please call me at FTS 233-5439. /ct( Andrew Walls III. Desiynation and Certification Manager

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


41

Version 1.0 Lithium hyper ne splitting  

E-Print Network (OSTI)

Version 1.0 Lithium hyper#12;ne splitting Krzysztof Pachucki #3; Institute of Theoretical Physics approach for the calculation of relativistic m#11; 6 corrections to the lithium ground state hyper#12;ne problem. We will concentrate on lithium as the simplest alkali-metal atom, for which several precise

Pachucki, Krzysztof

42

Traffic Flow Measurement: Experiences with NeTraMet  

Science Conference Proceedings (OSTI)

This memo records experiences in implementing and using the Traffic Flow Measurement Architecture and Meter MIB. It discusses the implementation of NeTraMet (a traffic meter) and NeMaC (a combined manager and meter reader), considers the writing of ...

N. Brownlee

1997-03-01T23:59:59.000Z

43

DOE - Office of Legacy Management -- Latty Avenue Site - MO 04  

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

Latty Avenue Site - MO 04 Latty Avenue Site - MO 04 FUSRAP Considered Sites Latty Avenue Site, MO Alternate Name(s): Futura Coatings Futura Chemical Company Facility Hazelwood Interim Storage Site (HISS) Former Cotter Site, Latty Avenue Properties Contemporary Metals Corp. Continental Mining and Milling MO.04-1 MO.04-2 MO.04-5 MO.04-6 MO.06-8 MO.06-11 Location: 9200 Latty Avenue, Hazelwood, Missouri MO.04-1 Historical Operations: Received, stored, and processed uranium residues for the AEC. Storage and processing were licensed by the AEC and NRC and resulted in contamination of uranium and thorium. MO.04-5 MO.04-6 Eligibility Determination: Eligible MO.04-3 MO.04-4 Radiological Survey(s): Assessment Surveys MO.04-2 MO.04-7 MO.04-8 MO.04-9 MO.04-10 MO.04-11 Site Status: Cleanup in progress by U.S. Army Corps of Engineers. MO.04-12

44

Nuclear deformation of {sup 20}Ne from {sup 20}Ne(105 MeV)+{sup 208}Pb scattering  

Science Conference Proceedings (OSTI)

We have measured differential cross section for quasielastic scattering of {sup 20}Ne+{sup 208}Pb at a lab energy of 105 MeV. The data are analyzed by a rotational-model coupled-channels calculation including the 0{sup +} ground state, 2{sup +} and 4{sup +} states of {sup 20}Ne.

Strojek, I.; Czarnacki, W.; Keeley, N. [Department of Nuclear Reaction, The Andrzej Soltan Institute for Nuclear Studies, 00681 Warsaw (Poland); Kisielinski, M.; Piasecki, E.; Rusek, K. [Department of Nuclear Reaction, The Andrzej Soltan Institute for Nuclear Studies, 00681 Warsaw (Poland); Heavy Ion Laboratory, Warsaw University, 02093 Warsaw (Poland); Kliczewski, S.; Siudak, R. [Niewodniczanski Institute of Nuclear Physics PAN, 31342 Cracow (Poland); Kordiasz, A.; Trzcinska, A. [Heavy Ion Laboratory, Warsaw University, 02093 Warsaw (Poland); Koshchiy, E. [V. N. Karazin Kharkiv National University, 61077 Kharkiv (Ukraine); Kowalczyk, M. [Heavy Ion Laboratory, Warsaw University, 02093 Warsaw (Poland); Faculty of Physics, Warsaw University, 00681 Warsaw (Poland); Piorkowska, A.; Stuad, A. [University of Silesia, 40007 Katowice (Poland)

2010-04-26T23:59:59.000Z

45

Li2MnO3-LiMO2 (M=Mn, Co, Ni) Solid Solutions With Surface ...  

Science Conference Proceedings (OSTI)

AISI441 Interconnect-Air Electrode Interfacial Study for Solid Oxide ... Evaluation of a Compliant Silicate-based Sealing Glass for Solid Oxide Fuel Cells.

46

Mr. Andrew Wallo, III, NE-23  

Office of Legacy Management (LM)

300, 955 L'E~~MI Phm.SW.:. Washin@on. LX. 200242174, T~kphonc(202)48ll. 5 300, 955 L'E~~MI Phm.SW.:. Washin@on. LX. 200242174, T~kphonc(202)48ll. 5 7117-03.87.cdy.43 23 September 1987 cA Mr. Andrew Wallo, III, NE-23 Division of Facility & Site Decommissioning Projects U.S. Department of Energy Germantown, Maryland 20545 Dear Mr. Wallo: ELIMINATION RECOMMENDATION -- COLLEGES AND UNIVERSITIES M/).0-05 pl 0.0% The attached elimination recommendation was prepared in accordance ML.05 with your suggestion during our meeting on 22 September. The recommendation flD.o-02 includes 26 colleges and universities identified.in Enclosure 4 to Aerospace letter subject: Status of Actions - FUSRAP Site List, dated NO.03. 27 May 1987; three institutions (Tufts College, University of Virginia, rJc..of and the University of Washington) currently identified on the FUSRAP

47

Pion inelastic scattering from sup 20 Ne  

SciTech Connect

Angular distributions for {sup 20}Ne({pi}{sup {plus minus}}, {pi}{sup {plus minus}}{prime}) were measured on the Energetic Pion Channel and Spectrometer (EPICS) at the Clinton P. Anderson Meson Physics Facility (LAMPF). Data were taken with both {pi}{sup {plus}} and {pi}{sup {minus}} over an angular range of 12{degree} to 90{degree} for T{sub {pi}}=180 MeV and with {pi}{sup +} from 15{degree} to 90{degree} for T{sub {pi}}=120 MeV. The data were analyzed using both the distorted-wave impulse approximation (DWIA) and the coupled-channels impulse approximation (CCIA) with collective transition densities. In addition, microscopic transition densities were used in the DWIA analysis for states in the lowest rotational bands. The transitions to the 6.73-MeV 0{sup +} and several 1{sup {minus}} states, including the states at 5.79 MeV and 8.71 MeV, were studied using several models for the transition density. Strong evidence for the importance of two-step routes in pion inelastic scattering was seen in several angular distributions, including the 5.79-MeV 1{sup {minus}}, the first three 4{sup +} states, and the 8.78-MeV 6{sup +}. 100 refs., 81 figs., 33 tabs.

Burlein, M. (Pennsylvania Univ., Philadelphia, PA (USA). Dept. of Physics)

1989-12-01T23:59:59.000Z

48

Effect of solution hardening on the shape memory effect of Fe-Mn based alloys  

SciTech Connect

Fe-high Mn-Si alloys, which undergo {gamma} (fcc) to {var_epsilon} (hcp) martensitic transformation, exhibit a pronounced shape memory effect. The origin of shape memory effect of these alloys is the reversion of stress-induced {var_epsilon} martensite. A shape change must hence be accomplish3ed by stress-induced martensitic transformation without permanent slip in austenite ({gamma}) in order to obtain a good shape memory effect. It is clear that the intrusion of permanent slip can be suppressed by increasing the strength of austenite and by decreasing the applied stress required for a shape change due to stress-induced martensitic transformation. It has been reported that the addition of the interstitial elements of C and N as well as the substitutional elements of Mo and V increases the 0.2% proof stress of austenite in Fe-high Mn alloys. However, there have been few studies on the effect of these alloying elements on the shape memory effect of Fe-high Mn based alloys. In the present study, it was aimed to improve the shape memory effect of Fe-high Mn based alloys by the strengthening of austenite through solution hardening due to C and Mo.

Tsuzaki, K.; Natsume, Y.; Maki, T. [Kyoto Univ. (Japan). Dept. of Materials Science and Engineering; Tomota, Y. [Ibaraki Univ., Hitachi (Japan)

1995-10-01T23:59:59.000Z

49

Energy for the future with Ris from nuclear power to sustainable energy Ris NatioNal laboRatoRy foR sustaiNable eNeRgy  

E-Print Network (OSTI)

Energy for the future ­ with Risø from nuclear power to sustainable energy Risø NatioNal laboRatoRy foR sustaiNable eNeRgy edited by MoRteN JastRup #12;Energy for the future #12;Energy for the future ­ with Risø from nuclear power to sustainable energy Translated from 'Energi til fremtiden ­ med Risø fra

50

Property:EIA/861/IsoNe | Open Energy Information  

Open Energy Info (EERE)

IsoNe IsoNe Jump to: navigation, search Property Name ISO_NE Property Type Boolean Description Indicates that the organization conducts operations in the New England ISO region [1] References ↑ "EIA Form EIA-861 Final Data File for 2010 - 861 Webfile Layout for 2010.doc" Pages using the property "EIA/861/IsoNe" Showing 25 pages using this property. (previous 25) (next 25) B Bangor Hydro-Electric Co + true + Barton Village, Inc (Utility Company) + true + Bozrah Light & Power Company + true + C Central Maine Power Co + true + Central Vermont Pub Serv Corp + true + CinCap IV, LLC + true + CinCap V LLC + true + Cinergy Capital & Trading, Inc + true + City of Chicopee, Massachusetts (Utility Company) + true + City of Holyoke, Massachusetts (Utility Company) + true +

51

Neutral Current Elastic Interactions in MiniBooNE  

SciTech Connect

Neutral Current Elastic (NCE) interactions in MiniBooNE are discussed. In the neutrino mode MiniBooNE reported: the flux averaged NCE differential cross section as a function of four-momentum transferred squared, an axial mass (M{sub A}) measurement, and a measurement of the strange quark spin content of the nucleon, {Delta}s. In the antineutrino mode we present the background-subtracted data which is compared with the Monte Carlo predictions.

Dharmapalan, Ranjan; /Alabama U.

2011-10-01T23:59:59.000Z

52

Category:Kansas City, MO | Open Energy Information  

Open Energy Info (EERE)

MO MO Jump to: navigation, search Go Back to PV Economics By Location Media in category "Kansas City, MO" The following 16 files are in this category, out of 16 total. SVFullServiceRestaurant Kansas City MO Union Electric Co.png SVFullServiceRestauran... 74 KB SVHospital Kansas City MO Union Electric Co.png SVHospital Kansas City... 66 KB SVLargeHotel Kansas City MO Union Electric Co.png SVLargeHotel Kansas Ci... 66 KB SVLargeOffice Kansas City MO Union Electric Co.png SVLargeOffice Kansas C... 65 KB SVMediumOffice Kansas City MO Union Electric Co.png SVMediumOffice Kansas ... 65 KB SVMidriseApartment Kansas City MO Union Electric Co.png SVMidriseApartment Kan... 74 KB SVOutPatient Kansas City MO Union Electric Co.png SVOutPatient Kansas Ci... 66 KB SVPrimarySchool Kansas City MO Union Electric Co.png

53

Thermophysical Properties of U-10MO Alloy  

Science Conference Proceedings (OSTI)

This report provides an overview of thermophysical properties of unirradiated uranium alloyed with ten weight percent molybdenum (U 10Mo), with particular focus on those material properties needed for modeling of new fuels for HPRRs (High Performance Research Reactors). The report contains both historical data available in the literature on U-10Mo, as well as more recent results conducted by the Global Threat Reduction Initiative fuel development program. The main use of the report is intended as a standard U-10Mo alloy properties reference for reactor models and simulations.

A. M. Phillips; G. S. Mickum; D. E. Burkes

2010-11-01T23:59:59.000Z

54

What is MoWiTT  

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

the net energy flow through two window samples in side-by-side tests using ambient weather conditions. MoWiTT characterizes the net energy flow as a function of time and...

55

D:\NE WEB Sites\NE\nerac\nov2001minutes.wpd  

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

November 5-6, 2001, DoubleTree Hotel, Arlington, Virginia November 5-6, 2001, DoubleTree Hotel, Arlington, Virginia NERAC members present: John Ahearne Robert Long Joseph Comfort Warren F. Miller, Jr. Michael L. Corradini Benjamin F. Montoya Jose Luis Cortez Sekazi Mtingwa Allen Croff Lura Powell James Duderstadt (Chair) Richard Reba Marvin Fertel Joy Rempe Beverly Hartline John Taylor Andrew Klein Charles E. Till Dale Klein (Monday only) Neil Todreas NERAC members absent: Thomas Cochran Allen Sessoms Maureen S. Crandall Daniel C. Sullivan Steve Fetter C. Bruce Tarter Leslie Hartz Ashok Thadani (ad hoc) J. Bennett Johnston Joan Woodard Linda C. Knight Also present: Robert Card, Under Secretary, USDOE Nancy Carder, NERAC Staff Charles Forsberg, Researcher, Oak Ridge National Laboratory Norton Haberman, Senior Technical Advisor, NE, USDOE

56

Mn deposition on Ni{sub 2}MnGa(100)  

Science Conference Proceedings (OSTI)

We report the study of Mn adlayers on a Mn deficient Ni{sub 2}MnGa(100) surface by using low energy electron diffraction (LEED). The spot profile analysis indicates that after 0.2 monolayer (ML) deposition, the LEED spots become very sharp. This pattern indicates the removal of Mn vacancies formed on the surface due to Mn deficiency. But with further growth of Mn layers on this surface, the LEED spots become broad.

Nayak, J.; Rai, Abhishek; D'Souza, S. W.; Maniraj, M.; Barman, S. R. [UGC-DAE Consortium for Scientific Research, Khandwa Road, Indore, 452001, M.P. (India)

2012-06-05T23:59:59.000Z

57

Category:Minneapolis, MN | Open Energy Information  

Open Energy Info (EERE)

MN MN Jump to: navigation, search Go Back to PV Economics By Location Media in category "Minneapolis, MN" The following 16 files are in this category, out of 16 total. SVFullServiceRestaurant Minneapolis MN Northern States Power Co (Minnesota) Excel Energy.png SVFullServiceRestauran... 89 KB SVHospital Minneapolis MN Northern States Power Co (Minnesota) Excel Energy.png SVHospital Minneapolis... 85 KB SVLargeHotel Minneapolis MN Northern States Power Co (Minnesota) Excel Energy.png SVLargeHotel Minneapol... 85 KB SVLargeOffice Minneapolis MN Northern States Power Co (Minnesota) Excel Energy.png SVLargeOffice Minneapo... 82 KB SVMediumOffice Minneapolis MN Northern States Power Co (Minnesota) Excel Energy.png SVMediumOffice Minneap... 83 KB SVMidriseApartment Minneapolis MN Northern States Power Co (Minnesota) Excel Energy.png

58

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

Office of Legacy Management (LM)

Petrolite Corp - MO 08 Petrolite Corp - MO 08 FUSRAP Considered Sites Site: PETROLITE CORP (MO.08) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: St. Louis , Missouri MO.08-1 Evaluation Year: 1987 MO.08-4 Site Operations: Research involving test quantities of radioactive materials. MO.08-2 Site Disposition: Eliminated - Licensed - Potential for contamination remote MO.08-3 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium Flouride & Thorium Oxide MO.08-2 Radiological Survey(s): None Indicated Site Status: Eliminated from further consideration under FUSRAP Also see Documents Related to PETROLITE CORP MO.08-1 - Summary Paper; Title: License History for Petrolite Corporation, St. Louis (MO.8); dated 07/16/93; with three attachments (3

59

An Audiomagnetotelluric Survey Over The Chaves Geothermal Field (Ne  

Open Energy Info (EERE)

Page Page Edit History Facebook icon Twitter icon » An Audiomagnetotelluric Survey Over The Chaves Geothermal Field (Ne Portugal) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Audiomagnetotelluric Survey Over The Chaves Geothermal Field (Ne Portugal) Details Activities (0) Areas (0) Regions (0) Abstract: In an attempt to define the resistivity model of the Chaves geothermal field in NE Portugal, a detailed survey with scalar audiomagnetotelluric measurements was performed. The soundings were made in the frequency range from 2300 to 4.1 Hz. Electrical resistivity models were derived from the application of 1-D inversion, 2-D trial and error modeling and 2-D inversion procedures. The resistivities inside the geothermal field are low, reaching not more than 30 Ωm and increasing up to 60-150 Ωm

60

Municipal Energy Agency of NE | Open Energy Information  

Open Energy Info (EERE)

Municipal Energy Agency of NE Municipal Energy Agency of NE Jump to: navigation, search Name Municipal Energy Agency of NE Place Nebraska Utility Id 21352 Utility Location Yes Ownership P NERC Location MRO NERC MRO Yes NERC SPP Yes NERC WECC Yes RTO SPP Yes ISO MISO Yes Operates Generating Plant Yes Activity Generation Yes Activity Buying Transmission Yes Activity Wholesale Marketing Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png No rate schedules available. Average Rates No Rates Available References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a" Retrieved from

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


61

19Ne levels studied with the 18F(d,n)19Ne*(18F+p) reaction  

Science Conference Proceedings (OSTI)

A good understanding of the level structure of 19Ne around the proton threshold is critical to estimating the destruction of long-lived 18F in novae. Here we report the properties of levels in 19Ne in the excitation energy range of 6.9 Ex 8.4 MeV studied via the proton-transfer 18F(d, n)Ne reaction at the Holifield Radioactive Ion Beam Facility. The populated 19Ne levels decay by breakup into p + 18F and + 15O particles. The results presented in this manuscript are those of levels that are simultaneously observed from the breakup into both channels. An s-wave state is observed at 1468 keV above the proton threshold, which is a potential candidate for a predicted broad J = 1/2+ state. The proton and partial widths are deduced to be p = 228 50 keV and = 130 30 keV for this state.

Adekola, A. S. [Ohio University, Athens; Brune, C. R. [Ohio University; Bardayan, Daniel W [ORNL; Blackmon, Jeffery C [Louisiana State University; Chae, K. Y. [University of Tennessee, Knoxville (UTK); Cizewski, J. A. [Rutgers University; Jones, K. L. [University of Tennessee, Knoxville (UTK); Kozub, R. L. [Tennessee Technological University; Massey, T. [Ohio University; Nesaraja, Caroline D [ORNL; Pain, Steven D [ORNL; ShrinerJr., J. F. [Tennessee Technological University; Smith, Michael Scott [ORNL; Thomas, J. S. [Rutgers University

2012-01-01T23:59:59.000Z

62

Accelerator Production Options for 99MO  

SciTech Connect

Shortages of {sup 99}Mo, the most commonly used diagnostic medical isotope, have caused great concern and have prompted numerous suggestions for alternate production methods. A wide variety of accelerator-based approaches have been suggested. In this paper we survey and compare the various accelerator-based approaches.

Bertsche, Kirk; /SLAC

2010-08-25T23:59:59.000Z

63

Mo Type Phase in Long-Term Aged INCONEL Alloy  

Science Conference Proceedings (OSTI)

FORMATION OF A PtzMo TYPE PHASE IN LONG-TERM AGED lNCONEL@ ALLOY 686. Michael G. ... formation of a low-temperature iutermetallic Pt*Mo type .

64

MoWiTT: The Mobile Window Thermal Test Facility  

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

Airflow schematic MoWiTT: The Mobile Window Thermal Test Facility In the MoWiTT facility, efficient window-and-frame systems are measured to understand the flow of energy through...

65

File:EIA-Williston-NE-Gas.pdf | Open Energy Information  

Open Energy Info (EERE)

Williston-NE-Gas.pdf Williston-NE-Gas.pdf Jump to: navigation, search File File history File usage Williston Basin, Northeast Part By 2001 Gas Reserve Class Size of this preview: 776 × 600 pixels. Full resolution ‎(6,600 × 5,100 pixels, file size: 5.95 MB, MIME type: application/pdf) Description Williston Basin, Northeast Part By 2001 Gas Reserve Class Sources Energy Information Administration Authors Samuel H. Limerick; Lucy Luo; Gary Long; David F. Morehouse; Jack Perrin; Robert F. King Related Technologies Oil, Natural Gas Creation Date 2005-09-01 Extent Regional Countries United States UN Region Northern America States Montana, North Dakota, South Dakota File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment

66

MiniBooNE "Windows on the Universe"  

Science Conference Proceedings (OSTI)

Progress in the last few decades has left neutrino physics with several vexing issues. Among them are the following questions: (1) Why are lepton mixing angles so different from those in the quark sector? (2) What is the most probable range of the reactor mixing angle? (3) Is the atmospheric mixing angle maximal? (4) What is the number of fermion generations? These are some of the issues that neutrino science hopes to study; this article will explore these questions as part of a more general scientific landscape, and will discuss the part MiniBooNE might play in this exploration. We discuss the current state of measurements taken by MiniBooNE, and emphasize the uniqueness of neutrino oscillations as an important probe into the 'Windows on the Universe.'

Stefanski, Ray; /Fermilab

2010-12-09T23:59:59.000Z

67

Overview of DOE-NE Proliferation and Terrorism Risk Assessment  

SciTech Connect

Research objectives are: (1) Develop technologies and other solutions that can improve the reliability, sustain the safety, and extend the life of current reactors; (2) Develop improvements in the affordability of new reactors to enable nuclear energy; (3) Develop Sustainable Nuclear Fuel Cycles; and (4) Understand and minimize the risks of nuclear proliferation and terrorism. The goal is to enable the use of risk information to inform NE R&D program planning. The PTRA program supports DOE-NE's goal of using risk information to inform R&D program planning. The FY12 PTRA program is focused on terrorism risk. The program includes a mix of innovative methods that support the general practice of risk assessments, and selected applications.

Sadasivan, Pratap [Los Alamos National Laboratory

2012-08-24T23:59:59.000Z

68

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

Science Conference Proceedings (OSTI)

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.

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

69

Ne IX emission-line ratios in solar active regions  

Science Conference Proceedings (OSTI)

Emission-line ratios for Ne IX are derived and compared with observational data for solar active regions obtained with the SOLEX B spectrometer on the P78-1 satellite. Excellent agreement is obtained, providing support for the atomic data adopted in the calculations and resolving discrepancies between existing theoretical calculations and solar data. The calculated R-ratio for the low-density limit agrees well with the SOLEX observations. 47 references.

Keenan, F.P.; Mccann, S.M.; Kingston, A.E.; Mckenzie, D.L.

1987-07-01T23:59:59.000Z

70

Neutrino and Antineutrino Cross sections at MiniBooNE  

SciTech Connect

The MiniBooNE experiment has reported a number of high statistics neutrino and anti-neutrino cross sections -among which are the charged current quasi-elastic (CCQE) and neutral current elastic (NCE) neutrino scattering on mineral oil (CH2). Recently a study of the neutrino contamination of the anti-neutrino beam has concluded and the analysis of the anti-neutrino CCQE and NCE scattering is ongoing.

Dharmapalan, Ranjan; /Alabama U.

2011-10-01T23:59:59.000Z

71

Missouri Department of National Resources Energy Center Mo DNR | Open  

Open Energy Info (EERE)

Department of National Resources Energy Center Mo DNR Department of National Resources Energy Center Mo DNR Jump to: navigation, search Name Missouri Department of National Resources Energy Center (Mo DNR) Place Jefferson City, Missouri Zip 65102 Product Mo DNR manages the Energy Revolving Fund which assists public organisations in Missouri in financing energy efficient projects for their facilities. References Missouri Department of National Resources Energy Center (Mo DNR)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Missouri Department of National Resources Energy Center (Mo DNR) is a company located in Jefferson City, Missouri . References ↑ "Missouri Department of National Resources Energy Center (Mo

72

Vanishing N=20 Shell Gap: Study of Excited States in {sup 27,28}Ne  

Science Conference Proceedings (OSTI)

This Letter reports on the {sup 1}H({sup 28}Ne,{sup 28}Ne) and {sup 1}H({sup 28}Ne,{sup 27}Ne) reactions studied at intermediate energy using a liquid hydrogen target. From the cross section populating the first 2{sup +} excited state of {sup 28}Ne, and using the previously determined B(E2) value, the neutron quadrupole transition matrix element has been calculated to be M{sub n}=13.8{+-}3.7 fm{sup 2}. In the neutron knockout reaction, two low-lying excited states were populated in {sup 27}Ne. Only one of them can be interpreted by the sd shell model while the additional state may intrude from the fp shell. These experimental observations are consistent with the presence of fp shell configurations at low excitation energy in {sup 27,28}Ne nuclei caused by a vanishing N=20 shell gap at Z=10.

Dombradi, Zs.; Fueloep, Zs. [Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, Debrecen, H-4001 (Hungary); Elekes, Z. [Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, Debrecen, H-4001 (Hungary); Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Saito, A.; Baba, H.; Demichi, K.; Gomi, T.; Hasegawa, H.; Kanno, S.; Kawai, S.; Kurita, K.; Matsuyama, Y.; Sakai, H.K.; Takeshita, E.; Togano, Y.; Yamada, K. [Rikkyo University, 3 Nishi-Ikebukuro, Toshima, Tokyo 171 (Japan); Aoi, N.; Ishihara, M.; Kishida, T.; Kubo, T. [Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)] (and others)

2006-05-12T23:59:59.000Z

73

Microsoft Word - Mn.doc  

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

5 5 Structural Determination of Marine Bacteriogenic Manganese Oxides John R. Bargar, Samuel M. Webb (Stanford Synchrotron Radiation Laboratory), and Bradley M. Tebo (Oregon Health and Science University) Bacterial oxidation of Mn(II) impacts the global geochemical cycling of carbon, nitrogen, sulfur, nutrients, and contaminants in the environment. Manganese is abundant in the biosphere (~10 14 Kg of suspended and dissolved manganese in the oceans) and is second only to iron in relative terrestrial abun- dance of transition metals. Manganese is an important nutrient in the marine water column and is fundamentally required for photosynthesis. The acquisition of manganese by organisms and the biogeochemistry of manganese in the oceans is therefore an

74

DOE - Office of Legacy Management -- United Nuclear Corp - MO 0-03  

Office of Legacy Management (LM)

United Nuclear Corp - MO 0-03 United Nuclear Corp - MO 0-03 FUSRAP Considered Sites Site: UNITED NUCLEAR CORP. (MO.0-03) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: Mallinckrodt Chemical Works Mallinckrodt Nuclear Corporation MO.0-03-1 MO.0-03-2 Location: Hematite , Missouri MO.0-03-1 Evaluation Year: Circa 1987 MO.0-03-3 Site Operations: Commercial fuel fabrication operation. Licensed to reclaim unirradiated enriched uranium from scrap generated in fuel fabrication and fuel material preparation. MO.0-03-1 MO.0-03-2 MO.0-03-3 MO.0-03-4 Site Disposition: Eliminated - NRC licensed - Commercial operations MO.0-03-3 MO.0-03-5 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium MO.0-03-3 Radiological Survey(s): None Indicated

75

DOE - Office of Legacy Management -- Elk River Reactor - MN 01  

Office of Legacy Management (LM)

Elk River Reactor - MN 01 FUSRAP Considered Sites Site: Elk River Reactor (MN.01 ) Eliminated from consideration under FUSRAP - Reactor was dismantled and decommissioned by 1974...

76

MoNDian Dark Matter, Entropic Gravity, and Infinite Statistics  

E-Print Network (OSTI)

We propose the concept of MoNDian dark matter which behaves like cold dark matter at cluster and cosmic scales but emulates modified Newtonian dynamics at the galactic scale. The connection between global physics and local galactic dynamics is implemented via entropic gravity. We also give an alternative formulation of MoNDian dark matter by using an effective gravitational Born-Infeld theory. In the latter approach, we show that the quanta of MoNDian dark matter obey infinite statistics.

Y. Jack Ng

2012-12-27T23:59:59.000Z

77

2013 Annual DOE-NE Materials Research Coordination Meeting | Department of  

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

2013 Annual DOE-NE Materials Research Coordination Meeting 2013 Annual DOE-NE Materials Research Coordination Meeting 2013 Annual DOE-NE Materials Research Coordination Meeting The Reactor Materials element of the Nuclear Energy Enabling Technologies (NEET) program conducted its FY 2013 coordination meeting as a series of four web-conferences to act as a forum for the nuclear materials research community. The purpose of this meeting was to report on current and planned nuclear materials research, identify new areas of collaboration and promote greater coordination among the various Office of Nuclear Energy (NE) programs. Currently, materials research is performed in several NE programs, including NE Advanced Modeling and Simulation (NEAMS), Fuel Cycle Research and Development (FCRD), Advanced Reactor Technologies

78

2013 Annual DOE-NE Materials Research Coordination Meeting | Department of  

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

2013 Annual DOE-NE Materials Research Coordination Meeting 2013 Annual DOE-NE Materials Research Coordination Meeting 2013 Annual DOE-NE Materials Research Coordination Meeting The Reactor Materials element of the Nuclear Energy Enabling Technologies (NEET) program conducted its FY 2013 coordination meeting as a series of four web-conferences to act as a forum for the nuclear materials research community. The purpose of this meeting was to report on current and planned nuclear materials research, identify new areas of collaboration and promote greater coordination among the various Office of Nuclear Energy (NE) programs. Currently, materials research is performed in several NE programs, including NE Advanced Modeling and Simulation (NEAMS), Fuel Cycle Research and Development (FCRD), Advanced Reactor Technologies

79

R-Process in Collapsing O/Ne/Mg Cores  

E-Print Network (OSTI)

Several circumstantial arguments point to the formation of the third r-process peak at A about 190, near platinum, in stars of mass of about 8-10 solar masses: 1) The delayed production of europium with respect to iron imposes a time scale that restricts the progenitor stars to less than about 10 solar masses; 2) the r-process demands a dominant robust mechanism at least for barium and above, since the relative abundance pattern of those r-process elements in low-metallicity stars is consistent with the solar pattern; 3) stars of about 8-10 solar masses produce nearly identical degenerate O/Ne/Mg cores that collapse due to electron capture; and 4) the resulting low-mass cores may produce both an r-process in a prompt explosion and a subsequent r-process in a neutrino driven wind. The prompt explosion of an O/Ne/Mg core yields low entropy and low electron fraction, and hence may produce a reasonable r-process peak at A about 190 as well as all of the r-process elements with Z greater than 56. The possible diff...

Wheeler, J C; Hillebrandt, W; Cowan, John J.; Hillebrandt, Wolfgang

1997-01-01T23:59:59.000Z

80

R-Process in Collapsing O/Ne/Mg Cores  

E-Print Network (OSTI)

Several circumstantial arguments point to the formation of the third r-process peak at A about 190, near platinum, in stars of mass of about 8-10 solar masses: 1) The delayed production of europium with respect to iron imposes a time scale that restricts the progenitor stars to less than about 10 solar masses; 2) the r-process demands a dominant robust mechanism at least for barium and above, since the relative abundance pattern of those r-process elements in low-metallicity stars is consistent with the solar pattern; 3) stars of about 8-10 solar masses produce nearly identical degenerate O/Ne/Mg cores that collapse due to electron capture; and 4) the resulting low-mass cores may produce both an r-process in a prompt explosion and a subsequent r-process in a neutrino driven wind. The prompt explosion of an O/Ne/Mg core yields low entropy and low electron fraction, and hence may produce a reasonable r-process peak at A about 190 as well as all of the r-process elements with Z greater than 56. The possible differences in the neutrino-driven wind and associated r-process due to the low-mass neutron stars expected in this mass range are also discussed.

J. Craig Wheeler; John J. Cowan; Wolfgang Hillebrandt

1997-11-22T23:59:59.000Z

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


81

Microstructure Characterization and Processing of U-Mo Alloy Fuels ...  

Science Conference Proceedings (OSTI)

molybdenum (Mo) fuels have been identified as a potential replacement for highly enriched uranium (HEU) dispersion fuels in high performance research...

82

Interdiffusion between Zr Diffusion Barrier and U-Mo Alloy  

Science Conference Proceedings (OSTI)

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.

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

2012-12-01T23:59:59.000Z

83

Balancing the Properties of Structural Mo-Borosilicide Alloys for ...  

Science Conference Proceedings (OSTI)

Symposium, Advanced Protective Coatings for Refractory Metals and Alloys. Presentation Title, Balancing the Properties of Structural Mo-Borosilicide Alloys for...

84

A Case Study For Geothermal Exploration In The Ne German Basin...  

Open Energy Info (EERE)

icon Twitter icon A Case Study For Geothermal Exploration In The Ne German Basin- Integrated Interpretation Of Seismic Tomography, Litho-Stratigraphy, Salt Tectonics, And...

85

Participants: William Naughton, COHMED Bill Sherman, NE HLRW Task Force  

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

conference call May 27, 1998 conference call May 27, 1998 Participants: William Naughton, COHMED Bill Sherman, NE HLRW Task Force Bob Fronczak, AAR Mike Butler, UETC Ray English, DOE-NR George Ruberg, UETC Kevin Blackwell, FRA Markus Popa, DOE-RW Sandy Covi, UP The Rail Topic Group is currently in a transitional mode, moving simultaneously toward closure of the two rail information matrices, Comparison of CVSA Recommended National Procedures and Out-Of-Service Criteria for the Enhanced Safety Inspection of Commercial Highway Vehicles Transporting Transuranics, Spent Nuclear Fuel, and High Level Waste to Rail Inspection Standards, and Rail and Highway Regulations Relative to the Transportation of Radioactive Materials and their Applicability to States, Tribes, Shippers, and Carriers, (both

86

PNM Resources 2401 Aztec NE, MS-Z100  

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

PNM Resources PNM Resources 2401 Aztec NE, MS-Z100 Albuquerque, NM 87107 505-241-2025 Fax 505 241-2384 PNMResources.com October 29, 2013 Mr. Christopher Lawrence Office of Electricity Delivery and Energy Reliability (OE-20) U.S. Department of Energy 1000 Independence Avenue, SW Washington, DC 20585 Submitted electronically via email to: Christopher.Lawrence@hq.doe.gov Dear Mr. Lawrence: Subject: Department of Energy (DOE)- Improving Performance of Federal Permitting and Review of Infrastructure Projects, Request for Information, 78 Fed. Reg. 53436 (Aug. 29, 2013) PNM Resources (PNMR) is an energy holding company with 2012 consolidated operating revenues of $1.3 billion. Through its regulated utilities, PNM and TNMP, PNMR serves electricity to more than 739,000 homes and businesses in New

87

CA M r. Andrew Wallo, III. NE-23  

Office of Legacy Management (LM)

i5W 95.5 L' i5W 95.5 L' E&nt plom. S. W.:. Washingr on. D.C. ZOOX2i74, Tekphm: (202) 488-6OGb 7II7-03.87.cdy.43 23 September 1987. Ii CA M r. Andrew Wallo, III. NE-23 Division of Facility & Site Decommissioning Projects U.S. Department of Energy Germantown, Maryland 20545 Dear M r. Wallo: ELIMINATION RECOMMENDATION -- COLLEGES AND UNIVERSITIES pqq.0' 05 PI ;p.03- The attached elimination recommendation was prepared in accordance ,I ML.05 with your suggestion during our meeting on 22 September. The recommendation flO.O-02 includes 26 colleges and universities identified in Enclosure 4 to Aerospace letter subject: Status of Actions - FUSRAP Site List, dated 27 May 1987; three institutions (Tufts College, University of Virginia, and the University of Washington) currently identified on the FUSRAP

88

Idaho National Laboratory DOE-NE's National Nuclear Capability-  

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

4-2023 4-2023 Idaho National Laboratory DOE-NE's National Nuclear Capability- Developing and Maintaining the INL Infrastructure TEN-YEAR SITE PLAN DOE/ID-11474 Final June 2012 Sustainable INL continues to exceed DOE goals for reduction in the use of petroleum fuels - running its entire bus fleet on biodiesel while converting 75% of its light-duty fleet to E85 fuel. The Energy Systems Laboratory (ESL), slated for completion this year, will be a state-of-the-art laboratory with high-bay lab space where leading bioenergy feedstock processing, advanced battery testing, and hybrid energy systems integration research will be conducted. The Advanced Test Reactor is the world's most advanced nuclear research capability - crucial to (1) the ongoing development of safe, efficient

89

NE-24 Unlverslty of Chicayo Remedial Action Plan  

Office of Legacy Management (LM)

(YJ 4 tlsj .?I2 (YJ 4 tlsj .?I2 416 17 1983 NE-24 Unlverslty of Chicayo Remedial Action Plan 22&d 7 IA +-- E. I.. Keller, Director Technical Services Division Oak Ridge Operations Ufflce In response to your memorandum dated July 29, 1983, the Field Task Proposal/Agreement (FTP/A) received frw Aryonne National Laboratory (ANL) appears to be satisfactory, and this office concurs in the use of ANL to provide the decontamination effort as noted in the FTP/A. The final decontaminatton report should Include the data needed for certiff- cation of the cleanup and any contamination left In place, e.g., sewer lines should be so documented in the permanent records of the University as well as the certification documents and reports. The remedial action to be conducted appears to be clearly InsIgnifIcant from an environmental

90

Microsoft PowerPoint - NEAC Battelle NE Capabilities 062408.ppt  

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

R&D Facility Requirements NEAC Meeting Progress Report June 24, 2008 2 Facilitization of U.S. Nuclear R&D Infrastructure Three-step study process: * First, ASNE requested Battelle Memorial Institute to develop Industry- and-University-supported list of capabilities and facilities necessary to conduct a comprehensive nuclear R&D program. (Draft, June 12, 2008) * Second, INL, using input from all DOE and other sources, will determine current facilities and their condition and availability to support next 20 years of nuclear R&D. (Draft, June 30, 2008) * Third, recommendations will be made on priorities and on existing facilities to be maintained/preserved or otherwise supported by NE regardless of location or ownership. (Executive Team Meeting, July 1, 2008)

91

The DA{Phi}NE beam position monitors  

SciTech Connect

The beam diagnostics network of DA{Phi}NE, the Frascati {Phi}-factory, includes more than 110 beam position monitors divided between button monitors and striplines. The shape of the vacuum chamber changes along the accelerator implying several different geometries for these monitors. Moreover, in the two interaction regions of the collider where the electron and positron beams pass into the same chamber, a six-button configuration has been used. A bench calibration of each family of BPMs and striplines is being performed. A polynomial correction function has been derived by fitting the calibration results. An analytical-numerical analysis of the buttons` geometry has been done in order to compare the experimental with the theoretical results. {copyright} {ital 1997 American Institute of Physics.}

Ghigo, A.; Sannibale, F.; Serio, M.; Vaccarezza, C. [INFN Laboratori Nazionali di Frascati-00044 Frascati (Roma)-Italy

1997-01-01T23:59:59.000Z

92

Charged-Current Interaction Measurements in MiniBooNE  

SciTech Connect

Neutrino oscillation is the only known phenomenon for physics beyond the standard model. To investigate this phenomenon, the understanding of low energy neutrino scattering (200NE finds that a simple Fermi gas model, with appropriate adjustments, accurately characterizes the CCQE events on carbon. The extracted parameters include an effective axial mass, MA=1.23 {+-} 0.20 GeV, and a Pauli-blocking parameter, kappa = 1.019 {+-} 0.011.

Katori, Teppei; /Indiana U.

2007-09-01T23:59:59.000Z

93

EG&G SURVEY REPORT NE-F-003  

Office of Legacy Management (LM)

EBJG EBJG -ENERGY MEASUREMENTS GROUP EG&G SURVEY REPORT NE-F-003 FEBRUARY 1983 NJT& THE REMOTE SENSING lRtlORlllORY OF THE UNITED STATES DEPARTMENT OF ENERGY AN AERIAL RADIOLOGICAL SURVEY OF AN AREA SURROUNDING THE FORMER M IDDLESEX SAMPLING PLANT IN M IDDLESEX, N E W JERSEY DATE OF SURVEY: M A Y 1978 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or

94

Observations on the oxidation of Mn-modified Ni-base Haynes 230 alloy under SOFC exposure conditions  

Science Conference Proceedings (OSTI)

The commercial Ni-base Haynes 230 alloy (Ni-Cr-Mo-W-Mn) was modified with two increased levels of Mn (1 and 2 wt per cent) and evaluated for its oxidation resistance under simulated SOFC interconnect exposure conditions. Oxidation rate, oxide morphology, oxide conductivity and thermal expansion were measured and compared with commercial Haynes 230. It was observed that additions of higher levels of Mn to the bulk alloy facilitated the formation of a bi-layered oxide scale that was comprised of an outer M3O4 (M=Mn, Cr, Ni) spinel-rich layer at the oxide gas interface over a Cr2O3-rich sub-layer at the metal oxide interface. The modified alloys showed higher oxidation rates and the formation of thicker oxide scales compared to the base alloy. The formation of a spinel-rich top layer improved the scale conductivity, especially during the early stages of the oxidation, but the higher scale growth rate resulted in an increase in the area-specific electrical resistance over time. Due to their face-centered cubic crystal structure, both commercial and modified alloys demonstrated a coefficient of thermal expansion that was higher than that of typical anode-supported and electrolyte-supported SOFCs.

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

2005-07-01T23:59:59.000Z

95

IMPROVEMENT OF CdMnTe DETECTOR PERFORMANCE BY MnTe PURIFICATION  

Science Conference Proceedings (OSTI)

Residual impurities in manganese (Mn) are a big obstacle to obtaining high-performance CdMnTe (CMT) X-ray and gamma-ray detectors. Generally, the zone-refining method is an effective way to improve the material's purity. In this work, we purified the MnTe compounds combining the zone-refining method with molten Te, which has a very high solubility for most impurities. We confirmed the improved purity of the material by glow-discharge mass spectrometry (GDMS). We also found that CMT crystals from a multiply-refined MnTe source, grown by the vertical Bridgman method, yielded better performing detectors.

Kim, K.H.; Bolotnikov, A.E.; Camarda, G.S.; Tappero, R.; Hossain, A.; Cui, Y.; Yang, G.; Gul, R.; and James, R.B.

2011-04-25T23:59:59.000Z

96

Co-Mo Electric Cooperative - Residential Energy Efficiency Rebate Program |  

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

Co-Mo Electric Cooperative - Residential Energy Efficiency Rebate Co-Mo Electric Cooperative - Residential Energy Efficiency Rebate Program Co-Mo Electric Cooperative - Residential Energy Efficiency Rebate Program < Back Eligibility Commercial Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heat Pumps Appliances & Electronics Water Heating Cooling Maximum Rebate Geothermal Heat Pumps: 10 ton maximum for Residential, 50 ton maximum for Commercial Program Info State Missouri Program Type Utility Rebate Program Rebate Amount Room AC: $50 Water Heater: $50 Air Source Heat Pumps: $150 per ton Dual Fuel Air Source Heat Pumps: $300 per ton Geothermal Heat Pumps (Closed Loop): up to $850 per ton Geothermal Heat Pumps (Open Loop or Replacement): $150 per ton Provider Co-Mo Electric Cooperative Co-Mo Electric Cooperative provides rebates to residential and commercial

97

Microsoft Word - Poster Abstract_2010_MO-SCI.doc  

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

* * Presenter High-Temperature Viscous Sealing Glasses for Solid Oxide Fuel Cells Cheol-Woon Kim * , Cindy L. Schwartz, Joe Szabo, Kevin S. Barr, and Ted E. Day MO-SCI Corporation, Rolla, MO 65401 * ckim@mo-sci.com; (573) 364-2338 Richard K. Brow ** and Zhongzhi Tang Department of Materials Science and Engineering and the Graduate Center for Materials Research, Missouri University of Science and Technology, Rolla, MO 65409-1170 ** brow@mst.edu; (573) 341-6812 MO-SCI Corporation and the Missouri University of Science and Technology successfully identified and tested several glass compositions that could be used as viscous seals for Solid Oxide Fuel Cells (SOFCs) through a SBIR Phase I project (DE-SC0002491). The glasses possess desirable viscosity characteristics- that is, they have softening points in the temperature range

98

Solid Solution Phases in Olivine-Type LiMnPO4/MnP4System  

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

Solid Solution Phases in Olivine-Type LiMnPO4MnP4System Title Solid Solution Phases in Olivine-Type LiMnPO4MnP4System Publication Type Journal Article Year of Publication 2009...

99

DOE - Office of Legacy Management -- Rogers Iron Works Co - MO 10  

Office of Legacy Management (LM)

Rogers Iron Works Co - MO 10 Rogers Iron Works Co - MO 10 FUSRAP Considered Sites Site: ROGERS IRON WORKS CO. (MO.10 ) Elimination from consideration under FUSRAP Designated Name: Not Designated Alternate Name: Rogers Iron Co. MO.10-1 Location: Joplin , Missouri MO.10-1 Evaluation Year: 1990 MO.10-2 MO.10-3 Site Operations: Tested C-liner crushing methods. MO.10-1 Site Disposition: Eliminated - Potential for contamination considered remote based on limited quantities of material handled MO.10-3 MO.10-4 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium (Trace Amounts) MO.10-2 Radiological Survey(s): None Indicated Site Status: Elimination from consideration under FUSRAP Also see Documents Related to ROGERS IRON WORKS CO. MO.10-1 - National Lead Company of Ohio Analytical Data Sheet 9908;

100

MattssonMoVacPrague2009.ppt  

National Nuclear Security Administration (NNSA)

Thomas R Mattsson Thomas R Mattsson Sandia National Laboratories Albuquerque, NM, USA Nils Sandberg -- KTH, Stockholm Richard Armiento -- Univ. Bayreuth, Germany Ann Mattsson -- Sandia National Laboratories Self-diffusion in Mo using the AM05 density functional Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. Joint U.S. Russia Conference on Advances in Materials Science Prague, Czech Republic Aug 31-Sept 3, 2009 SAND 2009-2197 C, 2009-3883 C, 2009-4713 C, and 2002-1323 P Vacancy mediated diffusion is the main mechanism for mass transport in solids *Vacancies are important for *Self-diffusion *Defect migration *Radiation damage/ swelling

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


101

Mo Year Report Period: EIA ID NUMBER:  

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

Version No: 2013.01 Mo Year Report Period: EIA ID NUMBER: http://www.eia.gov/survey/form/eia_14/instructions.pdf Mailing Address: Secure File Transfer option available at: (e.g., PO Box, RR) https://signon.eia.doe.gov/upload/noticeoog.jsp Electronic Transmission: The PC Electronic Zip Code - Data Reporting Option (PEDRO) is available. If interested in software, call (202) 586-9659. Email form to: OOG.SURVEYS@eia.doe.gov - - - - Fax form to: (202) 586-9772 Mail form to: Oil & Gas Survey Email address: U.S. Department of Energy Ben Franklin Station PO Box 279 Washington, DC 20044-0279 Questions? Call toll free: 1-800-638-8812 PADD 4 Type of Report (Check One ): (Thousands of dollars) (Thousands of barrels) PADD 2 PADD 3 PAD DISTRICT (a) Revision to Report:

102

EA-1909: South Table Wind Project, Kimball County, NE | Department of  

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

09: South Table Wind Project, Kimball County, NE 09: South Table Wind Project, Kimball County, NE EA-1909: South Table Wind Project, Kimball County, NE Summary DOE's Western Area Power Administration is preparing this EA to evaluate the environmental impacts of interconnecting the proposed South Table Wind Project, which would generate approximately 60 megawatts from about 40 turbines, to Western's existing Archer-Sidney 115-kV Transmission Line in Kimball County, Nebraska. Public Comment Opportunities None available at this time. Documents Available for Download August 28, 2012 EA-1909: Finding of No Significant Impact South Table Wind Project, Kimball County, NE July 16, 2012 EA-1909: Final Environmental Assessment South Table Wind Project, Kimball County, NE February 29, 2012 EA-1909: Draft Environmental Assessment

103

The MiniBooNE detector technical design report  

SciTech Connect

The MiniBooNE experiment [1] is motivated by the LSND observation, [2] which has been interpreted as {nu}{sub {mu}} {yields} {nu}{sub e} oscillations, and by the atmospheric neutrino deficit, [3,4,5] which may be ascribed to {nu}{sub {mu}} oscillations into another type of neutrino. MiniBooNE is a single-detector experiment designed to: obtain {approx} 1000 {nu}{sub {mu}} {yields} {nu}{sub e} events if the LSND signal is due to {nu}{sub {mu}} {yields} {nu}{sub e} oscillations, establishing the oscillation signal at the > 5{sigma} level as shown in Fig. 1.1; extend the search for {nu}{sub {mu}} {yields} {nu}{sub e} oscillations significantly beyond what has been studied previously if no signal is observed; search for {nu}{sub {mu}} disappearance to address the atmospheric neutrino deficit with a signal that is a suppression of the rate of {nu}{sub {mu}}C {yields} {mu}N events from the expected 600,000 per year; measure the oscillation parameters as shown in Fig. 1.2 if oscillations are observed; and test CP conservation in the lepton sector if oscillations are observed by running with separate {nu}{sub {mu}} and {bar {nu}}{sub {mu}} beams. The detector will consist of a spherical tank 6.1 m (20 feet) in radius, as shown in Fig. 1.3, that stands in a 45-foot diameter cylindrical vault. An inner tank structure at 5.75 m radius will support 1280 8-inch phototubes (10% coverage) pointed inward and optically isolated from the outer region of the tank. The tank will be filled with 807 t of mineral oil, resulting in a 445 t fiducial volume. The outer tank volume will serve as a veto shield for identifying particles both entering and leaving the detector with 240 phototubes mounted on the tank wall. Above the detector tank will be an electronics enclosure that houses the fast electronics and data acquisition system and a utilities enclosure that houses the plumbing, overflow tank, and calibration laser. The detector will be located {approx} 550 m from the Booster neutrino source. The neutrino beam, produced using 8 GeV protons from the Booster at FNAL, will consist of a target within a focusing system, followed by a {approx}50 m long pion decay volume. The low energy, high intensity and 1 {micro}s time-structure of a neutrino beam produced from the Booster beam are ideal for this experiment. We assume that the Booster can reliably deliver protons for a typical run which is two-thirds of a calendar year. The sensitivities discussed above assume the experiment receives 5 x 10{sup 20} protons per year. This Booster experiment is compatible with the Fermilab collider and MI programs. The Booster must run at 7.5 Hz to accommodate the MiniBooNE and collider programs simultaneously. The current schedule calls for data-taking to begin by the end of calendar year 2001.

I. Stancu et al.

2003-04-18T23:59:59.000Z

104

MN Office of Energy Security | Open Energy Information  

Open Energy Info (EERE)

MN Office of Energy Security MN Office of Energy Security Jump to: navigation, search Name MN Office of Energy Security Place St. Paul, MN Website http://www.mnofficeofenergysec References MN Office of Energy Security[1] Information About Partnership with NREL Partnership with NREL Yes Partnership Type Test & Evaluation Partner Partnering Center within NREL Electricity Resources & Building Systems Integration LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! MN Office of Energy Security is a company located in St. Paul, MN. References ↑ "MN Office of Energy Security" Retrieved from "http://en.openei.org/w/index.php?title=MN_Office_of_Energy_Security&oldid=379158" Categories: Clean Energy Organizations Companies Organizations

105

DOE - Office of Legacy Management -- Spencer Chemical Co - MO 0-01  

Office of Legacy Management (LM)

MO 0-01 MO 0-01 FUSRAP Considered Sites Site: SPENCER CHEMICAL CO. (MO.0-01) Eliminated from further consideration under FUSRAP - an AEC licensed operation Designated Name: Not Designated Alternate Name: Jayhawk Works MO.0-01-1 Location: Joplin , Missouri MO.0-01-1 Evaluation Year: 1985 MO.0-01-2 Site Operations: Processed enriched uranium (UF-6) and scrap to produce primarily uranium dioxide (UO-2) under AEC licenses. MO.0-01-3 MO.0-01-4 Site Disposition: Eliminated - No Authority MO.0-01-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Normal and Enriched Uranium, Thorium MO.0-01-6 Radiological Survey(s): Yes MO.0-01-5 Site Status: Eliminated from further consideration under FUSRAP - an AEC licensed operation Also see Documents Related to SPENCER CHEMICAL CO.

106

DOE - Office of Legacy Management -- Tyson Valley Powder Farm - MO 11  

Office of Legacy Management (LM)

Tyson Valley Powder Farm - MO 11 Tyson Valley Powder Farm - MO 11 FUSRAP Considered Sites Site: TYSON VALLEY POWDER FARM (MO.11) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: St. Louis County , Missouri MO.11-1 Evaluation Year: 1987 MO.11-2 Site Operations: Storage of C-Special material (residue from production of uranium metal). MO.11-1 MO.11-2 MO.11-3 Site Disposition: Eliminated - Referred to Army Corps of Engineers MO.11-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium MO.11-3 Radiological Survey(s): None Indicated Site Status: Eliminated from further consideration under FUSRAP Also see Documents Related to TYSON VALLEY POWDER FARM MO.11-1 - Letter; Dickenson to Duff; Subject: Granted continued use

107

CA CAIOlf Mr. Andrew Wallo. III, NE-23  

Office of Legacy Management (LM)

kire 7900. 955 L*E,,fa,u PLUG S. W.. Washin@ on. D.C. 20024-2174, Tekphme: (202) 488-6000 kire 7900. 955 L*E,,fa,u PLUG S. W.. Washin@ on. D.C. 20024-2174, Tekphme: (202) 488-6000 7117-03.87.cdy.43 23 September 1987 CA CAIOlf Mr. Andrew Wallo. III, NE-23 Division of Facility & Site Decommissioning Projects U.S. Department of Energy Germantown, Maryland 20545 CT.05 FL .0-o/ lti.Ob id.Or Dear Mr. Wallo: In/. O-01 flA.05 ELIMINATION RECOMMENDATION -- COLLEGES AND UNIVERSITIES Mbj.o-03 I4 v.o+ The attached elimination recommendation was prepared in accordance ML.o= with your suggestion during our meeting on 22 September. The recommendation nO.O-02 includes 26 colleges and universities identified.in Enclosure 4 to Aerospace letter subject: Status of Actions - FUSRAP Site List, dated N0.63' 27 May 1987; three institutions (Tufts College, University of Virginia, kfC900

108

Composition-structure-property-performance relationship inMn-substituted LiMn2O4  

DOE Green Energy (OSTI)

The spinel LiMn{sub 2}O{sub 4} has been extensively studied as a positive electrode active material in lithium rechargeable batteries. Partial substitution of Mn by another metal has also been the subject of recent study in an effort to improve the cycling performance. In general, the literature has shown that Mn substitution results in improved cycling stability at the expense of capacity (1,2). Resistance to the formation of tetragonal phase upon lithiation of the starting spinel (via a higher nominal Mn oxidation state in the substituted spinel) has been suggested as a mechanism for the improved performance. The degree of substitution is an important factor to optimize in order to minimize capacity loss and costs. The spectroscopic investigations on LiMn{sub 2}O{sub 4} described in the previous paper (LixMn2O4) confirmed that the cooperative Jahn-Teller effect (CJTE) from the [Mn{sup 3+}O{sub 6}] octahedra is the mechanism for the cubic to tetragonal phase transformation. The driving force for the CJTE is based upon the electronic structure, therefore changes in electronic structure should lead to changes in the phase behavior. The fact that the LiMn{sub 1.5}Ni{sub 0.5}O{sub 4} does not form tetragonal phase upon discharging (FUJI3, MUCK?), unlike the 100% Mn{sup 4+} spinel Li{sub 4}Mn{sub 5}O{sub 12} (THAC5), led to the hypothesis that an increased degree of covalency as a source for the behavior. An increased covalence would remove the driving force for the transformation, the increased electronic stability achieved in tetragonally-distorted [Mn{sup 3+}O{sub 6}] octahedra, due to a change in electron density and widening of the Mn 3d bands. The STH field is dependent upon the amount of unpaired spin density transferred between the magnetic (transition-metal) and diamagnetic ions through an intermittent oxygen ion, attributable to overlap and electron transfer effects. Therefore, the magnitude of the STH coupling constant reflects the degree of covalency (GESC, HUAN). In the case of LiMn{sub 2-y}Me{sub y}O{sub 4}, the STH coupling constant characterizes the amount of unpaired spin density transferred to the Li{sup +} from the Mn, Co, or Ni. Similarly, the La/Lb ratio of the Mn L-XES is sensitive to the amount of electron density at the Mn site as a higher ratio indicates that the Mn 3d{sub 5/2} level is more populated (GRUS1). An investigation into the effects of Mn-substitution on the electronic structure along with the ramifications to the phase behavior upon changing lithium content was carried out. To accomplish this, a set of LiMn{sub 2-y}Me{sub y}O{sub 4} with Me = Li, Co, or Ni over a range of y were synthesized, characterized, and subjected to changes in lithium content by various techniques.

Horne, Craig R.; Richardson, Thomas J.; Gee, B.; Tucker, Mike; Grush, Melissa M.; Bergmann, Uwe; Striebel, Kathryn A.; Cramer, StephenP.; Reimer, Jeffrey A.; Cairns, Elton J.

2001-03-09T23:59:59.000Z

109

{sup 17}O({alpha},{gamma}){sup 21}Ne and {sup 17}O({alpha},n){sup 20}Ne for the weak s process  

Science Conference Proceedings (OSTI)

The ratio of the reaction rates of the competing channels {sup 17}O({alpha}{gamma}){sup 21}Ne and {sup 17}O({alpha},n){sup 20}Ne determines the efficiency of {sup 16}O as a neutron poison in the s process in low metallicity rotating stars. It has a large impact on the element production, either producing elements to the mass range of A=90 in case of a significant poisoning effect or extending the mass range up to the region of A=150 if the {gamma} channel is of negligible strength. We present an improved study of the reaction {sup 17}O({alpha},n){sup 20}Ne, including an independent measurement of the {sup 17}O({alpha},n{sub 1}){sup 20}Ne channel. A simultaneous R-Matrix fit to both the n{sub 0} and the n{sub 1} channels has been performed. New reaction rates, including recent data on the {sup 17}O({alpha},{gamma}){sup 21}Ne reaction, have been calculated and used as input for stellar network calculations and their impact on the s process in rotating massive stars is discussed.

Best, A.; Goerres, J.; Beard, M.; Couder, M.; Boer, R. de; Falahat, S.; Gueray, R. T.; Kontos, A.; Kratz, K.-L.; LeBlanc, P. J.; Li, Q.; O'Brien, S.; Oezkan, N.; Pignatari, M.; Sonnabend, K.; Talwar, R.; Tan, W.; Uberseder, E.; Wiescher, M. [Department of Physics, University of Notre Dame, Notre Dame, IN 46556 (United States); Department of Physics, University of Notre Dame, Notre Dame, IN 46556 (United States) and Department for Biogeochemistry, Max-Planck-Institute for Chemistry, 55020 Mainz (Germany); Department of Physics, Kacaeli University, Umuttepe 41380, Kocaeli (Turkey); Department of Physics, University of Notre Dame, Notre Dame, IN 46556 (United States); Department for Biogeochemistry, Max-Planck-Institute for Chemistry, 55020 Mainz (Germany); Department of Physics, University of Notre Dame, Notre Dame, IN 46556 (United States); Department of Physics, Kacaeli University, Umuttepe 41380, Kocaeli (Turkey); Department of Physics, University of Basel, Basel 4056 (Switzerland); Institute for Applied Physics, Goethe-University Frankfurt, 60325 Frankfurt (Germany); Department of Physics, University of Notre Dame, Notre Dame, IN 46556 (United States)

2012-11-20T23:59:59.000Z

110

Level-resolved R-matrix calculations for the electron-impact excitation of Ne{sup 3+} and Ne{sup 6+}  

SciTech Connect

Large-scale R-matrix calculations are carried out for the electron-impact excitation of Ne{sup 3+} and Ne{sup 6+}. For Ne{sup 3+}, a 581-LSJ-level R-matrix intermediate coupling frame transformation calculation is made for excitations up to the n=4 shell. For some transitions, large effective collision strength differences are found with current 23-jKJ-level Breit-Pauli R-matrix and earlier 22-LSJ-level R-matrix jj omega (JAJOM) calculations. For Ne{sup 6+}, a 171-jKJ-level Breit-Pauli R-matrix calculation is made for excitations up to the n=5 shell. For some transitions, large effective collision strength differences are found with current 46-jKJ-level Breit-Pauli R-matrix and earlier 46-LSJ-level R-matrix JAJOM calculations. Together with existing R-matrix calculations for other ion stages, high-quality excitation data are now available for astrophysical and laboratory plasma modeling along the entire Ne isonuclear sequence.

Ludlow, J. A.; Lee, T. G.; Ballance, C. P.; Loch, S. D.; Pindzola, M. S. [Department of Physics, Auburn University, Auburn, Alabama 36849 (United States)

2011-08-15T23:59:59.000Z

111

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

Science Conference Proceedings (OSTI)

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

112

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

DOE Patents (OSTI)

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

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

2012-11-27T23:59:59.000Z

113

Future design mindful of the MoRAS  

Science Conference Proceedings (OSTI)

As human-computer interaction (HCI) expands its scope, the proper context for the design of information technology (IT) is increasingly an interconnected mosaic of responsive adaptive systems (MoRAS) including people's heads, organizations, communities, ...

George W. Furnas

2000-09-01T23:59:59.000Z

114

Developments in realistic design for aperiodic Mo/Si multilayermirrors  

Science Conference Proceedings (OSTI)

Aperiodic multilayers have been designed for various applications, using numeric algorithms and analytical solutions, for many years with varying levels of success. This work developed a more realistic model for simulating aperiodic Mo/Si multilayers to be used in these algorithms by including the formation of MoSi{sub 2}. Using a genetic computer code we were able to optimize a 45{sup o} multilayer for a large bandpass reflection multilayer that gave good agreement with the model.

Aquila, A.L.; Salmassi, F.; Dollar, F.; Liu, Y.; Gullikson, E.M.

2006-04-05T23:59:59.000Z

115

A new material, Li2Mn2(MoO4)3 for Li-ion batteries: Synthesis and ...  

Science Conference Proceedings (OSTI)

Abstract Scope, The demand for electrically operated devices has led to a variety of ... Co-Production of Pure Hydrogen and Electricity from Coal Syngas via the...

116

Category:International Falls, MN | Open Energy Information  

Open Energy Info (EERE)

MN MN Jump to: navigation, search Go Back to PV Economics By Location Media in category "International Falls, MN" The following 16 files are in this category, out of 16 total. SVFullServiceRestaurant International Falls MN Northern States Power Co (Minnesota) Excel Energy.png SVFullServiceRestauran... 88 KB SVHospital International Falls MN Northern States Power Co (Minnesota) Excel Energy.png SVHospital Internation... 84 KB SVLargeHotel International Falls MN Northern States Power Co (Minnesota) Excel Energy.png SVLargeHotel Internati... 85 KB SVLargeOffice International Falls MN Northern States Power Co (Minnesota) Excel Energy.png SVLargeOffice Internat... 83 KB SVMediumOffice International Falls MN Northern States Power Co (Minnesota) Excel Energy.png

117

A Case Study For Geothermal Exploration In The Ne German Basin- Integrated  

Open Energy Info (EERE)

Geothermal Exploration In The Ne German Basin- Integrated Geothermal Exploration In The Ne German Basin- Integrated Interpretation Of Seismic Tomography, Litho-Stratigraphy, Salt Tectonics, And Thermal Structure Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: A Case Study For Geothermal Exploration In The Ne German Basin- Integrated Interpretation Of Seismic Tomography, Litho-Stratigraphy, Salt Tectonics, And Thermal Structure Details Activities (0) Areas (0) Regions (0) Abstract: Unavailable Author(s): K. Bauer, I. Moeck, B. Norden, A. Schulze, M. H. Weber Published: Publisher Unknown, 2009 Document Number: Unavailable DOI: Unavailable Retrieved from "http://en.openei.org/w/index.php?title=A_Case_Study_For_Geothermal_Exploration_In_The_Ne_German_Basin-_Integrated_Interpretation_Of_Seismic_Tomography,_Litho-Stratigraphy,_Salt_Tectonics,_And_Thermal_Structure&oldid=390106"

118

EcoCAR: The NeXt Challenge | Department of Energy  

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

EcoCAR: The NeXt Challenge EcoCAR: The NeXt Challenge EcoCAR: The NeXt Challenge May 18, 2010 - 7:30am Addthis While most college students' experience with vehicles goes no further than the beater they picked up for a few thousand dollars, students participating in the EcoCAR: The NeXT Challenge competition get to experience the cutting-edge of driving technology. The competition, which was established by the U.S. Department of Energy and General Motors, is a three year advanced vehicle engineering contest. Yesterday, May 17, was the first day of their Year 2 judging sessions. In EcoCAR, students from 16 universities across North America are competing against each other to build the most environmentally sustainable and practical vehicle. This year's teams have adopted a number of advanced

119

Magnetoelastic Coupling in NiMnGa Ferromagnetic Shape ...  

Science Conference Proceedings (OSTI)

... Magnetoelastic Coupling in NiMnGa Ferromagnetic Shape Memory Alloys. Peng Zhao (Dept. of Materials Science and ...

120

First Principles Calculation for Magnetic Properties of Mn Alloys  

Science Conference Proceedings (OSTI)

The results indicate that the ? of MnAl and MnAlGe are extremely small because of ... Alloy Design and Powder Processing of Mn-Al Based Materials for Rare Earth ... Device Arrays Using Self-limiting Low-energy Glow-discharge Processing.

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


121

The comparison of sulfide CoMo/?-Al2O3 and NiMo/?-Al2O3 catalysts in methyl palmitate and methyl heptanoate hydrodeoxygenation  

Science Conference Proceedings (OSTI)

The hydrodeoxygenation of methyl palmitate and methyl heptanoate as the model compounds of bio-oil in the presence of sulfided CoMo/?-Al2O3 and NiMo/?-Al2O3 catalysts was studied at the temperature ... Keywords: CoMoS/?-Al2O3, NiMoS/?-Al2O3, biofuels, hydrodeoxygenation, methyl heptanoate, methyl palmitate

Irina V. Deliy; Evgenia N. Vlasova; Alexey L. Nuzhdin; Galina A. Bukhtiyarova

2011-12-01T23:59:59.000Z

122

Synthesis, characterization and electrochemmistry of lithium battery electrodes : xLi{sub 2}MnO{sub 3}{center_dot}(1-x)LiMn{sub 0.333}Ni{sub 0.333}Co{sub 0.333}O{sub2} (0{le}x{le}0.7).  

Science Conference Proceedings (OSTI)

Lithium- and manganese-rich layered electrode materials, represented by the general formula xLi{sub 2}MnO{sub 3} {center_dot} (1-x)LiMO{sub 2} in which M is Mn, Ni, and Co, are of interest for both high-power and high-capacity lithium ion cells. In this paper, the synthesis, structural and electrochemical characterization of xLi{sub 2}MnO{sub 3} {center_dot} (1-x)LiMn{sub 0.333}Ni{sub 0.333}Co{sub 0.333}O{sub 2} electrodes over a wide compositional range (0 {le} x {le} 0.7) is explored. Changes that occur to the compositional, structural, and electrochemical properties of the electrodes as a function of x and the importance of using a relatively high manganese content and a high charging potential (>4.4 V) to generate high capacity (>200 mAh/g) electrodes are highlighted. Particular attention is given to the electrode composition 0.3Li{sub 2}MnO{sub 3} {center_dot} 0.7LiMn{sub 0.333}Ni{sub 0.333}Co{sub 0.333}O{sub 2} (x = 0.3) which, if completely delithiated during charge, yields Mn{sub 0.533}Ni{sub 0.233}Co{sub 0.233}O{sub 2}, in which the manganese ions are tetravalent and, when fully discharged, LiMn{sub 0.533}Ni{sub 0.233}Co{sub 0.233}O{sub 2}, in which the average manganese oxidation state (3.44) is marginally below that expected for a potentially damaging Jahn-Teller distortion (3.5). Acid treatment of 0.3Li{sub 2}MnO{sub 3} {center_dot} 0.7LiMn{sub 0.333}Ni{sub 0.333}Co{sub 0.333}O{sub 2} composite electrode structures with 0.1 M HNO{sub 3} chemically activates the Li{sub 2}MnO{sub 3} component and essentially eliminates the first cycle capacity loss but damages electrochemical behavior, consistent with earlier reports for Li{sub 2}MnO{sub 3}-stabilized electrodes. Differences between electrochemical and chemical activation of the Li{sub 2}MnO{sub 3} component are discussed. Electrochemical charge/discharge profiles and cyclic voltammogram data suggest that small spinel-like regions, generated in cycled manganese-rich electrodes, serve to stabilize the electrodes, particularly at low lithium loadings (high potentials). The study emphasizes that, for high values of x, a relatively small LiMO{sub 2} concentration stabilizes a layered Li{sub 2}MnO{sub 3} electrode to reversible lithium insertion and extraction when charged to a high potential.

Johnson, C. S.; Li, N.; Lefief, C.; Vaughey, J. T.; Thackeray, M. M.; Chemical Sciences and Engineering Division

2008-01-01T23:59:59.000Z

123

Electrochemical Performances of LiMnPO4 Synthesized from Non-Stoichiometric Li/Mn Ratio  

Science Conference Proceedings (OSTI)

In this paper we report the influences of the initial lithium content on the structural, electrochemical and magnetic properties of nonstoichiometric LixMnPO4 (0.5?x?1.2) nano-particles. It has been revealed Mn2P2O7 is the main impurity when Li1.0. The different functions of Mn2P2O7 and Li3PO4 impurities in the non-stoichiometric compounds have been investigated systematically. At a slow rate of C/50 the reversible capacity of both Li0.5MnPO4 and Li0.8MnPO4 increases with cycling indicating a gradual activation of more sites to accommodate a reversible diffusion of Li+ ions which may be related to the interaction between Mn2P2O7 and LiMnPO4 nanoparticles. Among all the different compositions, Li1.1MnPO4 exhibits the most stable cycling ability probably due to the existence of a trace amount of Li3PO4 impurity which functions as a solid state electrolyte on the surface. The magnetic properties and X-ray absorption spectroscopy (XAS) of MnPO4?H2O precursor, pure and carbon coated LiMnPO4 and all the other non-stoichiometric LixMnPO4 are also investigated to identify the key steps to prepare a high performance LiMnPO4.

Xiao, Jie; Chernova, Natalya; Upreti, Shailesh; Chen, Xilin; Li, Zheng; Deng, Zhiqun; Choi, Daiwon; Xu, Wu; Nie, Zimin; Graff, Gordon L.; Liu, Jun; Whittingham, M. S.; Zhang, Jiguang

2011-09-12T23:59:59.000Z

124

MoWiTT:Mobile Window Thermal Test Facility  

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

0 0 MoWiTT: Mobile Window Thermal Test Facility The window has come a long way since the days when it was a single pane of glass in a wood frame. Low-emissivity windows were designed to help buildings retain some of the energy that would have leaked out of less efficient windows. Designing efficient window-and-frame systems requires accurate measurement of the flow of energy through windows in realistic conditions, a capability provided by the Mobile Window Thermal Test facility. Consisting of a pair of outdoor, room-sized calorimeters, MoWiTT measures the net energy flow through two window samples in side-by-side tests using ambient weather conditions. MoWiTT characterizes the net energy flow as a function of time and measures the temperatures, solar fluxes, and

125

Co-Mo Electric Coop Inc | Open Energy Information  

Open Energy Info (EERE)

Mo Electric Coop Inc Mo Electric Coop Inc Jump to: navigation, search Name Co-Mo Electric Coop Inc Place Missouri Utility Id 4063 Utility Location Yes Ownership C NERC Location SERC NERC MRO Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Commercial Multi-Phase Commercial Commercial Single-Phase Over 200 Amps Commercial Commercial Single-Phase Up To 200 Amps Commercial Industrial Industrial Outdoor Lighting HPS 100 W Lighting Outdoor Lighting HPS 150 W Lighting Outdoor Lighting HPS 400 W Lighting Residential Multi-Phase Residential Residential Single-Phase Over 200 Amps Residential

126

DOE - Office of Legacy Management -- Medart Co - MO 09  

Office of Legacy Management (LM)

Medart Co - MO 09 Medart Co - MO 09 FUSRAP Considered Sites Site: MEDART CO. (MO.09 ) Eliminated from consideration under FUSRAP - Facility believed to be torn down and the original site built over Designated Name: Not Designated Alternate Name: None Location: 180 Potomoc Street , St. Louis , Missouri MA.09-4 Evaluation Year: Circa 1990 MA.09-3 Site Operations: Conducted test machining operations on uranium bar stock during the early 1950s. MA.09-2 Site Disposition: Eliminated - Potential for contamination considered remote due limited duration of operations and to site reconstruction MA.09-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium Metal (test quantities) MA.09-3 Radiological Survey(s): Health and safety monitoring during operations MA.09-3

127

U-Mo Plate Blister Anneal Interim Report  

SciTech Connect

Blister thresholds in fuel elements have been a longstanding performance parameter for fuel elements of all types. This behavior has yet to be fully defined for the RERTR U-Mo fuel types. Blister anneal studies that began in 2007 have been expanded to include plates from more recent RERTR experiments. Preliminary data presented in this report encompasses the early generations of the U-Mo fuel systems and the most recent but still developing fuel system. Included is an overview of relevant dispersion fuel systems for the purposes of comparison.

Francine J. Rice; Daniel M. Wachs; Adam B. Robinson; Dennis D. Keiser Jr.; Jan-Fong Jue; Danielle M. Perez; Ross Finlay

2010-10-01T23:59:59.000Z

128

Low-temperature magnetization of (Ga,Mn) As semiconductors  

E-Print Network (OSTI)

We report on a comprehensive study of the ferromagnetic moment per Mn atom in (Ga,Mn)As ferromagnetic semiconductors. Theoretical discussion is based on microscopic calculations and on an effective model of Mn local moments antiferromagnetically coupled to valence band hole spins. The validity of the effective model over the range of doping studied is assessed by comparing with microscopic tight-binding/coherent-potential approximation calculations. Using the virtual crystal k center dot p model for hole states, we evaluate the zero-temperature mean-field contributions to the magnetization from the hole kinetic and exchange energies, and magnetization suppression due to quantum fluctuations of Mn moment orientations around their mean-field ground state values. Experimental low-temperature ferromagnetic moments per Mn are obtained by superconducting quantum interference device and x-ray magnetic circular dichroism measurements in a series of (Ga,Mn)As semiconductors with nominal Mn doping ranging from similar to 2 to 8%. Hall measurements in as-grown and annealed samples are used to estimate the number of uncompensated substitutional Mn moments. Based on our comparison between experiment and theory we conclude that all these Mn moments in high quality (Ga,Mn)As materials have nearly parallel ground state alignment.

Jungwirth, T.; Masek, J.; Wang, KY; Edmonds, KW; Sawicki, M.; Polini, M.; Sinova, Jairo; MacDonald, AH; Campion, RP; Zhao, LX; Farley, NRS; Johal, TK; van der Laan, G.; Foxon, CT; Gallagher, BL.

2006-01-01T23:59:59.000Z

129

Towards a study of the {sup 22}Ne(p,{gamma}){sup 23}Na reaction at LUNA  

SciTech Connect

The {sup 22}Ne(p,{gamma}){sup 23}Na reaction is a part of the hydrogen burning NeNa cycle. In second-generation stars hydrogen burning may proceed via this cycle. The rate of the {sup 22}Ne(p,{gamma}){sup 23}Na reaction depends on the strength of several resonances in the energy range of the LUNA 400 kV accelerator which have never been observed in direct experiments. A related study is under preparation at LUNA.

Cavanna, Francesca; Depalo, Rosanna; Menzel, Marie-Luise [Dipartimento di fisica, Universita di Genova, and INFN Sezione di Genova, Genova (Italy); Dipartimento di fisica, Universita di Padova, and INFN Sezione di Padova, Padova (Italy); Helmholtz Zentrum Dresden-Rossendorf, Dresden (Germany); Collaboration: LUNA Collaboration

2012-11-20T23:59:59.000Z

130

Analysis of ISO NE Balancing Requirements: Uncertainty-based Secure Ranges for ISO New England Dynamic Inerchange Adjustments  

SciTech Connect

The document describes detailed uncertainty quantification (UQ) methodology developed by PNNL to estimate secure ranges of potential dynamic intra-hour interchange adjustments in the ISO-NE system and provides description of the dynamic interchange adjustment (DINA) tool developed under the same contract. The overall system ramping up and down capability, spinning reserve requirements, interchange schedules, load variations and uncertainties from various sources that are relevant to the ISO-NE system are incorporated into the methodology and the tool. The DINA tool has been tested by PNNL and ISO-NE staff engineers using ISO-NE data.

Etingov, Pavel V.; Makarov, Yuri V.; Wu, Di; Hou, Zhangshuan; Sun, Yannan; Maslennikov, S.; Luo, X.; Zheng, T.; George, S.; Knowland, T.; Litvinov, E.; Weaver, S.; Sanchez, E.

2013-01-31T23:59:59.000Z

131

DOE-NE Light Water Reactor Sustainability Program and EPRI Long-Term  

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

DOE-NE Light Water Reactor Sustainability Program and EPRI DOE-NE Light Water Reactor Sustainability Program and EPRI Long-Term Operations Program - Joint Research and Development Plan DOE-NE Light Water Reactor Sustainability Program and EPRI Long-Term Operations Program - Joint Research and Development Plan Nuclear power has contributed almost 20% of the total amount of electricity generated in the United States over the past two decades. High capacity factors and low operating costs make nuclear power plants (NPPs) some of the most economical power generators available. Further, nuclear power remains the single largest contributor (nearly 70%) of non-greenhouse gas-emitting electric power generation in the United States. Even when major refurbishments are performed to extend operating life, these plants continue to represent cost-effective, low-carbon assets to the nation's

132

DOE-NE Light Water Reactor Sustainability Program and EPRI Long-Term  

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

DOE-NE Light Water Reactor Sustainability Program and EPRI DOE-NE Light Water Reactor Sustainability Program and EPRI Long-Term Operations Program - Joint Research and Development Plan DOE-NE Light Water Reactor Sustainability Program and EPRI Long-Term Operations Program - Joint Research and Development Plan Nuclear power has contributed almost 20% of the total amount of electricity generated in the United States over the past two decades. High capacity factors and low operating costs make nuclear power plants (NPPs) some of the most economical power generators available. Further, nuclear power remains the single largest contributor (nearly 70%) of non-greenhouse gas-emitting electric power generation in the United States. Even when major refurbishments are performed to extend operating life, these plants continue to represent cost-effective, low-carbon assets to the nation's

133

ARM - Field Campaign - 1996 NARSTO Northeast Field Study (NARSTO-NE)  

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

6 NARSTO Northeast Field Study (NARSTO-NE) 6 NARSTO Northeast Field Study (NARSTO-NE) Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : 1996 NARSTO Northeast Field Study (NARSTO-NE) 1996.07.01 - 1996.07.28 Lead Scientist : Larry Kleinman For data sets, see below. Description The DOE G-1 aircraft was deployed in the New York City metropolitan area as part of the North American Research Strategy for Tropospheric Ozone-Northeast effort to determine the causes of elevated ozone levels in the northeastern United States. Measurements of ozone, ozone precursors, and other photochemically active trace gases were made upwind and downwind of New York City with the objective of characterizing the ozone formation process and its dependence on ambient levels of NOx and volatile organic

134

Microsoft PowerPoint - Freeze.NE PA Overview_052511.ppt  

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

Used Fuel Disposition Campaign Used Fuel Disposition Campaign Summary of DOE-NE PA Modeling for Storage and Disposal of Used Nuclear Fuel (UNF), High-Level Radioactive Waste (HLW), and Low-Level Waste (LLW) Geoff Freeze Sandia National Laboratories PA Community of Practice Technical Exchange May 25-26, 2011 Print Close Used Fuel Disposition 2 DOE-Nuclear Energy (NE) - PA Modeling Activities NE Advanced Modeling and Simulation (NEAMS) Waste Integrated Performance and Safety Codes (Waste IPSC) Used Fuel Disposition (UFD) Generic Performance Assessment Model (GPAM) *** Initial modeling focus in both campaigns in on UNF/HLW disposal Print Close Used Fuel Disposition 3  UFD GPAM  Short time horizon (2-3 yrs) - Simplified generic system models (i.e., PA-fidelity using GoldSim) - Current computing capabilities

135

Skåne County, Sweden: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Skåne County, Sweden: Energy Resources Skåne County, Sweden: Energy Resources Jump to: navigation, search Name Skåne County, Sweden Equivalent URI DBpedia GeoNames ID 3337385 Coordinates 55.98333°, 13.5° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":55.98333,"lon":13.5,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

136

Charged-Current Neutral Pion production at SciBooNE  

SciTech Connect

SciBooNE, located in the Booster Neutrino Beam at Fermilab, collected data from June 2007 to August 2008 to accurately measure muon neutrino and anti-neutrino cross sections on carbon below 1 GeV neutrino energy. SciBooNE is studying charged current interactions. Among them, neutral pion production interactions will be the focus of this poster. The experimental signature of neutrino-induced neutral pion production is constituted by two electromagnetic cascades initiated by the conversion of the {pi}{sup 0} decay photons, with an additional muon in the final state for CC processes. In this poster, I will present how we reconstruct and select charged-current muon neutrino interactions producing {pi}{sup 0}'s in SciBooNE.

Catala-Perez, J.; /Valencia U., IFIC

2009-10-01T23:59:59.000Z

137

First Direct Measurement of the {sup 17}F(p,{gamma}){sup 18}Ne Cross Section  

SciTech Connect

The rate of the {sup 17}F(p,{gamma}){sup 18}Ne reaction is important in various astrophysical events. A previous {sup 17}F(p,p){sup 17}F measurement identified a 3{sup +} state providing the strongest resonance contribution, but the resonance strength was unknown. We have directly measured the {sup 17}F(p,{gamma}){sup 18}Ne reaction using a mixed beam of {sup 17}F and {sup 17}O at ORNL. The resonance strength for the 3{sup +} resonance in {sup 18}Ne was found to be {omega}{gamma}=33{+-}14(stat){+-}17(syst) meV, corresponding to a {gamma} width of {gamma}{sub {gamma}}=56{+-}24(stat){+-}30(syst) meV. An upper limit on the direct capture of S(E){<=}65 keV b was determined at an energy of 800 keV.

Chipps, K. A.; Greife, U. [Colorado School of Mines, Golden, Colorado 80401 (United States); Bardayan, D. W.; Smith, M. S. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States); Blackmon, J. C. [Louisiana State University, Baton Rouge, Louisiana 70803 (United States); Chae, K. Y.; Moazen, B. H.; Pittman, S. T. [University of Tennessee, Knoxville, Tennessee 37996 (United States); Hatarik, R.; Peters, W. A. [Rutgers University, New Brunswick, New Jersey 08901 (United States); Kozub, R. L.; Shriner, J. F. Jr. [Tennessee Technological University, Cookeville, Tennessee 38505 (United States); Matei, C. [Oak Ridge Associated Universities, Oak Ridge, Tennessee 37830 (United States); Nesaraja, C. D.; Pain, S. D. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States); University of Tennessee, Knoxville, Tennessee 37996 (United States)

2009-04-17T23:59:59.000Z

138

ProMoVer: modular verification of temporal safety properties  

Science Conference Proceedings (OSTI)

This paper describes ProMoVer, a tool for fully automated procedure-modular verification of Java programs equipped with method-local and global assertions that specify safety properties of sequences of method invocations. Modularity at the procedure-level ...

Siavash Soleimanifard; Dilian Gurov; Marieke Huisman

2011-11-01T23:59:59.000Z

139

¿Cómo funcionan los Híbridos?  

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

¿Cómo funcionan los Híbridos? ¿Cómo funcionan los Híbridos? Diagrama de los componentes de un híbrido completo, incluyen (1) un motor de combustión interna (2) un motor eléctrico, (3) un generador, (4) una aparato de cambio de motor, and (5) una batería de gran capacidad. en inglés Flash Animation: ¿Cómo funcionan los Híbridos? (Requiere versión Flash 6.0 o superior) HTML Version: ¿Cómo funcionan los Híbridos? Los vehículos Híbridos-eléctricos (VHEs) combinan las ventajas de los motores de gasolina con los motores eléctricos y se pueden configurar para diferentes objetivos, como mejorar el ahorro de combustible, aumentar su fuerza, o proveer fuerza adicional para el uso del sistema eléctrico o los componentes electrónicos. Algunas de las tecnologías avanzadas que usan los híbridos típicamente

140

Large-Scale Synthesis of MoS2/ Polymer Derived Ceramic ...  

Science Conference Proceedings (OSTI)

Applications of MoS2 as lithium ion battery anode material are also being explored. Here, we demonstrate exfoliation of MoS2 into single and few layers.

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


141

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

NLE Websites -- All DOE Office Websites (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...

142

Elevated Temperature Compression Testing of the U-10 wt% Mo Alloy  

Science Conference Proceedings (OSTI)

Abstract Scope, In order to satisfy non-proliferation treaties the metallic U-10 wt% Mo (U-10Mo) alloy in low enrichments is under development to replace highly...

143

N NE EX XT T G GE EN NE ER RA AT TI IO ON N S SA AF FE EG  

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

NE NE EX XT T G GE EN NE ER RA AT TI IO ON N S SA AF FE EG GU UA AR RD DS S I IN NI IT TI IA AT TI IV VE E ( (N NG GS SI I) ) O OP PP PO OR RT TU UN NI IT TI IE ES S F FO OR R S ST TU UD DE EN NT TS S A AN ND D Y YO OU UN NG G P PR RO OF FE ES SS SI IO ON NA AL LS S I IN NT TE ER RE ES ST TE ED D I IN N S SA AF FE EG GU UA AR RD DS S/ /N NO ON NP PR RO OL LI IF FE ER RA AT TI IO ON N The Next Generation Safeguards Initiative (NGSI) was launched by the National Nuclear Security Administration (NNSA) in FY 2008 to develop the policies, concepts, technologies, expertise, and infrastructure necessary to strengthen and sustain the international safeguards system as it evolves to meet new challenges over the next 25 years. NGSI's Human Capital Development subprogram 1 aims to revitalize and expand the international safeguards human capital base in the United States by attracting, educating, training, and retaining

144

MiniBooNE as related to Windows on the Universe  

SciTech Connect

The measurement of absolute neutrino and anti-neutrino cross-sections, the observation of a 'low energy anomaly' in the neutrino sector, the constraints placed on the LSND effect by a non-observation of neutrino oscillations, the search for neutrino and anti-neutrino appearance, and for the possible existence of new heavy particles makes MiniBooNE a major contributor to the current view of the Universe. This paper addresses specific model constraints set by the MiniBooNE data, and explores expectations for further remaining analysis of the data.

Stefanski, Ray; /Fermilab

2009-12-01T23:59:59.000Z

145

Electrochemical Performance of LiFeMnPO4  

Science Conference Proceedings (OSTI)

Symposium, Energy Storage: Materials, Systems, and Applications. Presentation Title, Electrochemical Performance of LiFeMnPO4: A Comparison of Synthesis...

146

,"Warroad, MN Natural Gas Pipeline Exports to Canada (Million...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Warroad, MN Natural Gas Pipeline Exports to Canada (Million Cubic Feet)",1,"Annual",2003 ,"Release Date:","172014"...

147

,"Warroad, MN Natural Gas Pipeline Imports From Canada (MMcf...  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Warroad, MN Natural Gas Pipeline Imports From Canada (MMcf)",1,"Annual",2012 ,"Release Date:","172014" ,"Next...

148

,"International Falls, MN Natural Gas Pipeline Imports From Canada...  

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

International Falls, MN Natural Gas Pipeline Imports From Canada (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of...

149

,"Noyes, MN Natural Gas Pipeline Imports From Canada (MMcf)"  

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

Of Series","Frequency","Latest Data for" ,"Data 1","Noyes, MN Natural Gas Pipeline Imports From Canada (MMcf)",1,"Annual",2012 ,"Release Date:","172014" ,"Next...

150

Microstructural Characterization of Fe-Mn-C Ternary Alloy under ...  

Science Conference Proceedings (OSTI)

Mercury Oxidation and Capture over SCR Catalysts in Simulated Coal Combustion Flue Gas Microstructural Characterization of Fe-Mn-C Ternary Alloy under...

151

Characterization of Mn-Co Electrodeposition for SOFC Interconnect ...  

Science Conference Proceedings (OSTI)

Presentation Title, Characterization of Mn-Co Electrodeposition for SOFC Interconnect Applications by QCM. Author(s), Junwei Wu, Ayyakkannu Manivannan,...

152

Electrodeposited Mn-Co Alloy Coating For SOFC Interconnects  

Science Conference Proceedings (OSTI)

Presentation Title, Electrodeposited Mn-Co Alloy Coating For SOFC Interconnects. Author(s), Heather McCrabb, Tim Hall, Junwei Wu, Hui Zhang, Xingbo Liu,...

153

Microstructure and Coercivity of Nitrided Mn-Sn Based Alloy  

Science Conference Proceedings (OSTI)

Alloy Design and Powder Processing of Mn-Al Based Materials for Rare Earth ... Enhancement of the Refrigerant Capacity in Partially Crystallized Gd-Fe-Al-B...

154

Ni(II) Sorption on Biogenic Mn-Oxides with Varying Mn  

E-Print Network (OSTI)

Lightsource (SSRL), Menlo Park, CA. EXAFS spectra from Ni(II) organic standards were collected in transmission-3 at SSRL. This method is described in detail in Zhu et al. (6). Results Sorption Isotherms and Dissolved Mn,anationaluserfacilityoperatedbyStanfordUniversity on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences. The SSRL Structural Molecular

Sparks, Donald L.

155

50,000-Watt AM Stations IA | MB | MI | MN | NE | ND | ON | SD | WI | Station News | Owners | TV Captures | Links  

E-Print Network (OSTI)

2) and the concentration of 65Cu2+ estimated by the speciation model WHAM (1.0 (28)), we could]e^ equals zero and that [65 Cu2+ ] was constant (i.e., nominal [65 Cu2+ ] ) 5.2-µg L-1). That is, WHAM the speciation model WHAM (28) assuming that the lake water has a pH near 8 (30), a dissolved organic carbon

Allen, Gale

156

A generic network interface architecture for a networked processor array (NePA)  

Science Conference Proceedings (OSTI)

Recently Network-on-Chip (NoC) technique has been proposed as a promising solution for on-chip interconnection network. However, different interface specification of integrated components raises a considerable difficulty for adopting NoC techniques. ... Keywords: interconnection network, multiprocessor systemon-chip (MPSoC), network interface, network-on-chip (NoC), networked processor array (NePA)

Seung Eun Lee; Jun Ho Bahn; Yoon Seok Yang; Nader Bagherzadeh

2008-02-01T23:59:59.000Z

157

THERMALIZATION OF THE ION KINETIC ENERGY IN A Ne GAS PUFF PINCH MODEL*  

E-Print Network (OSTI)

THERMALIZATION OF THE ION KINETIC ENERGY IN A Ne GAS PUFF PINCH MODEL* J. L. Giuliani, J. W Department of Energy/NNSA, Washington DC USA Full understanding of the dynamics, population kinetics, and energy budget of a K-shell radiating Z-pinch remains a challenging problem in high energy density plasma

158

Km3NeT, a Deep Sea Challenge for Neutrino Astronomy  

Science Conference Proceedings (OSTI)

The groups presently pursuing neutrino telescope projects in the Mediterranean Sea; ANTARES, NEMO, and NESTOR, have formed the new KM3NeT consortium to study the construction of a cubic kilometre-scale neutrino telescope for the Northern hemisphere. ...

Ciro Bigongiari

2007-10-01T23:59:59.000Z

159

36 SEPTEMBER | 2012 WiNd TURbiNE CAPACiTY  

E-Print Network (OSTI)

36 SEPTEMBER | 2012 WiNd TURbiNE CAPACiTY FRONTiER FROM SCAdA ThE WORld hAS SEEN A significant contributor to this growth. The wind turbine generated energy depends on the wind potential and the turbine of wind turbines. Supervi- sory control and data acquisition (SCADA) systems record wind turbine

Kusiak, Andrew

160

Charged current single pion cross section measurement at MiniBooNE  

SciTech Connect

We present MiniBooNE's preliminary {nu}{sub {mu}} CC1{pi}{sup +} cross section measurement, calculated using the ratio of CC1{pi}{sup +} to CCQE events. We find the inclusive CC1{pi}{sup +} measurement to be below the nuance [1] and NEUGEN [2] expectations.

Wascko, M.O.; /Louisiana State U.

2006-02-01T23:59:59.000Z

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


161

Nonuniformity of CBF response to NE-or ANG II-induced hypertension in rabbits  

SciTech Connect

The regional response of brain vasculature to moderate hypertension was investigated using two hypertensive drugs, norepinephrine (NE) and angiotensin II (ANG II), infused intravenously at low concentrations (increase in blood pressure 15-40 mmHg). Regional cerebral blood flow (rCBF) was measured in unanesthetized and anesthetized rabbits using the (/sup 14/C)ethanol saturation technique. (1) In both groups of animals, NE and ANG II induced regional differences in the flow changes as compared with controls, confirming a regional (or segmental) heterogeneity in the regulatory mechanisms to hypertension. (2) The responses to identical rises in blood pressure (BP) in most of the structures analyzed depended on the drug used. In the unanesthetized rabbits, the increase in vascular resistance induced by NE was greater than that induced by ANG II. (3) With the two drugs, there was no correlation between the flow changes in any of the structures considered and either the BP increase or the BP level in unanesthetized animals. However, these flow changes were correlated with the BP increase in anesthetized animals, although differences between the effects of NE and ANG II were again observed. This study suggests that cerebrovascular regulatory mechanisms in hypertension are probably more complex than a simple myogenic reaction. Their heterogeneity and their dependence both on the cause of hypertension and on the presence of anesthetics suggest the intervention of an integrating pathway.

Reynier-Rebuffel, A.M.; Aubineau, P.; Issertial, O.; Seylaz, J.

1987-07-01T23:59:59.000Z

162

NE-Rank: A Novel Graph-Based Keyphrase Extraction in Twitter  

Science Conference Proceedings (OSTI)

The massive growth of the micro-blogging service Twitter has shed the light on the challenging problem of summarizing a collection of large number of tweets. This paper attempts to extract topical key phrases that would represent topics in tweets. Due ... Keywords: Keyphrase Extraction, Graph-based Ranking, Hashtag, Twitter, PageRank, TextRank, NE-Rank

Abdelghani Bellaachia; Mohammed Al-Dhelaan

2012-12-01T23:59:59.000Z

163

Zwischenbericht zum DFG-Forschungsvorhaben NE 902/2-1 SCHR 570/6-1  

E-Print Network (OSTI)

.3 Anwendungsperspektiven. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4 Arbeits- und Ergebnisbericht 10 4.3 Wissenschaftliche Mitarbeiter/in Dipl.-Ing. Vera Ebbing Besch¨aftigungszeitraum: seit 1. Oktober 2006 1.4 Fachgebiet;Zwischenbericht zum DFG-Forschungsvorhaben NE 902/2-1 SCHR 570/6-1 10 4 Arbeits- und Ergebnisbericht Basierend auf

Neff, Patrizio

164

On the Reaction Mechanism of Acetaldehyde Decomposition on Mo(110)  

Science Conference Proceedings (OSTI)

The strong Mo-O bond strength provides promising reactivity of Mo-based catalysts for the deoxygenation of biomass-derived oxygenates. Combining the novel dimer saddle point searching method with periodic spin-polarized density functional theory calculations, we investigated the reaction pathways of a acetaldehyde decomposition on the clean Mo(110) surface. Two reaction pathways were identified, a selective deoxygenation and a nonselective fragmentation pathways. We found that acetaldehyde preferentially adsorbs at the pseudo 3-fold hollow site in the ?2(C,O) configuration on Mo(110). Among four possible bond (?-C-H, ?-C-H, C-O and C-C) cleavages, the initial decomposition of the adsorbed acetaldehyde produces either ethylidene via the C-O bond scission or acetyl via the ?-C-H bond scission while the C-C and the ?-C-H bond cleavages of acetaldehyde leading to the formation of methyl (and formyl) and formylmethyl are unlikely. Further dehydrogenations of ethylidene into either ethylidyne or vinyl are competing and very facile with low activation barriers of 0.24 and 0.31 eV, respectively. Concurrently, the formed acetyl would deoxygenate into ethylidyne via the C-O cleavage rather than breaking the C-C or the C-H bonds. The selective deoxygenation of acetaldehyde forming ethylene is inhibited by relatively weaker hydrogenation capability of the Mo(110) surface. Instead, the nonselective pathway via vinyl and vinylidene dehydrogenations to ethynyl as the final hydrocarbon fragment is kinetically favorable. On the other hand, the strong interaction between ethylene and the Mo(110) surface also leads to ethylene decomposition instead of desorption into the gas phase. This work was financially supported by the National Advanced Biofuels Consortium (NABC). Computing time was granted by a user project (emsl42292) at the Molecular Science Computing Facility in the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL). This work was financially supported by the National Advanced Biofuels Consortium (NABC). Computing time was granted by a user project (emsl42292) at the Molecular Science Computing Facility in the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL). The EMSL is a U.S. Department of Energy (DOE) national scientific user facility located at Pacific Northwest National Laboratory (PNNL) and supported by the DOE Office of Biological and Environmental Research. Pacific Northwest National Laboratory is operated by Battelle for the U.S. Department of Energy.

Mei, Donghai; Karim, Ayman M.; Wang, Yong

2012-02-16T23:59:59.000Z

165

High-Resolution Structure of the Photosynthetic Mn4Ca Catalyst from X-ray Spectroscopy  

E-Print Network (OSTI)

the Photosynthetic Mn 4 Ca Catalyst from X-ray Spectroscopystructure of the Mn 4 Ca catalyst at high-resolution whichthe structure of Mn 4 Ca catalyst as it cycles through the

Yano, Junko

2008-01-01T23:59:59.000Z

166

MN471018, Work Planning and Control Manual  

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

18, Work Planning and Control Manual 18, Work Planning and Control Manual Sponsor: Michael W. Hazen, 4000 Issue Date: January 3, 2007 Revision Date: June 1, 2009 This document is no longer a CPR. This document implements the requirements of Corporate procedure ESH100.1.WPC.1, Plan and Control Work. IMPORTANT NOTICE: A printed copy of this document may not be the document currently in effect. The official version is the online version located on the Sandia Restricted Network (SRN) MN471018 - WORK PLANNING AND CONTROL MANUAL Subject Matter Expert: Brad Elkin; CA Counterpart: Aden Jackson MN471018 Revision Date: June 1, 2009; Replaces Document: October 28, 2008 Implementation Notice: The requirements outlined in this document must be incorporated into approved comprehensive organizational procedures on or before June 30, 2009. New work planned and conducted after June 30, 2009 shall be performed in accordance with this document. Ongoing work, conducted under an existing, current, and approved PHS and TWD (if required), is authorized until the expiration of the applicable PHS, TWD, or June 30, 2010.

167

Graphitization in C and C-Mo Steels  

Science Conference Proceedings (OSTI)

Following the recent carbon (C) and carbon-molybdenum (C-Mo) steel graphitization experience reported by several Electric Power Research Institute (EPRI) members, it became apparent that the industry could benefit from better predictive guidance to prioritize component inspections and examinations for graphitization. This research effort collected and analyzed the additional experience gained since the last EPRI project on the subject and focused on developing suitably conservative time-temperature predi...

2010-12-23T23:59:59.000Z

168

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

SciTech Connect

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}).

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

169

Electronic structure and magnetism in BaMn2As2 and BaMn2Sb2  

Science Conference Proceedings (OSTI)

We study the properties of ThCr{sub 2}Si{sub 2} structure BaMn{sub 2}As{sub 2} and BaMn{sub 2}Sb{sub 2} using density functional calculations of the electronic and magnetic properties as well as experimental measurements on single crystal samples of BaMn{sub 2}As{sub 2}. These materials are local moment magnets with moderate band gap antiferromagnetic semiconducting ground states. The electronic structures show substantial Mn-pnictogen hybridization, which stabilizes an intermediate spin configuration for the nominally d{sup 5} Mn. The results are discussed in the context of possible thermoelectric applications and the relationship with the corresponding iron/cobalt/nickel compounds Ba(Fe,Co,Ni){sub 2}As{sub 2}.

An, Jiming [ORNL; Safa-Sefat, Athena [ORNL; Singh, David J [ORNL; Du, Mao-Hua [ORNL

2009-01-01T23:59:59.000Z

170

Searches for New Physics at MiniBooNE: Sterile Neutrinos and Mixing Freedom  

SciTech Connect

The MiniBooNE experiment was designed to perform a search for {nu}{sub {mu}} {yields} {nu}{sub e} oscillations in a region of {Delta}m{sup 2} and sin{sup 2} 2{theta} very different from that allowed by standard, three-neutrino oscillations, as determined by solar and atmospheric neutrino experiments. This search was motivated by the LSND experimental observation of an excess of {bar {nu}}{sub e} events in a {bar {nu}}{sub {mu}} beam which was found compatible with two-neutrino oscillations at {Delta}m{sup 2} {approx} 1 eV{sup 2} and sin{sup 2} 2{theta} < 1%. If confirmed, such oscillation signature could be attributed to the existence of a light, mostly-sterile neutrino, containing small admixtures of weak neutrino eigenstates. In addition to a search for {nu}{sub {mu}} {yields} {nu}{sub e} oscillations, MiniBooNE has also performed a search for {bar {nu}}{sub {mu}} {yields} {bar {nu}}{sub e} oscillations, which provides a test of the LSND two-neutrino oscillation interpretation that is independent of CP or CPT violation assumptions. This dissertation presents the MiniBooNE {nu}{sub {mu}} {yields} {nu}{sub e} and {bar {nu}}{sub {mu}} {yields} {bar {nu}}{sub e} analyses and results, with emphasis on the latter. While the neutrino search excludes the two-neutrino oscillation interpretation of LSND at 98% C.L., the antineutrino search shows an excess of events which is in agreement with the two-neutrino {bar {nu}}{sub {mu}} {yields} {bar {nu}}{sub e} oscillation interpretation of LSND, and excludes the no oscillations hypothesis at 96% C.L. Even though the neutrino and antineutrino oscillation results from MiniBooNE disagree under the single sterile neutrino oscillation hypothesis, a simple extension to the model to include additional sterile neutrino states and the possibility of CP violation allows for differences between neutrino and antineutrino oscillation signatures. In view of that, the viability of oscillation models with one or two sterile neutrinos is investigated in global fits to MiniBooNE and LSND data, with and without constraints from other oscillation experiments with similar sensitivities to those models. A general search for new physics scenarios which would lead to effective non-unitarity of the standard 3 x 3 neutrino mixing matrix, or mixing freedom, is also performed using neutrino and antineutrino data available from MiniBooNE.

Karagiorgi, Georgia S.; /MIT

2010-07-01T23:59:59.000Z

171

Strategic Plan for Nuclear Energy -- Knowledge Base for Advanced Modeling and Simulation (NE-KAMS)  

SciTech Connect

The Nuclear Energy Computational Fluid Dynamics Advanced Modeling and Simulation (NE-CAMS) system is being developed at the Idaho National Laboratory (INL) in collaboration with Bettis Laboratory, Sandia National Laboratory (SNL), Argonne National Laboratory (ANL), Utah State University (USU), and other interested parties with the objective of developing and implementing a comprehensive and readily accessible data and information management system for computational fluid dynamics (CFD) verification and validation (V&V) in support of nuclear energy systems design and safety analysis. The two key objectives of the NE-CAMS effort are to identify, collect, assess, store and maintain high resolution and high quality experimental data and related expert knowledge (metadata) for use in CFD V&V assessments specific to the nuclear energy field and to establish a working relationship with the U.S. Nuclear Regulatory Commission (NRC) to develop a CFD V&V database, including benchmark cases, that addresses and supports the associated NRC regulations and policies on the use of CFD analysis. In particular, the NE-CAMS system will support the Department of Energy Office of Nuclear Energy Advanced Modeling and Simulation (NEAMS) Program, which aims to develop and deploy advanced modeling and simulation methods and computational tools for reliable numerical simulation of nuclear reactor systems for design and safety analysis. Primary NE-CAMS Elements There are four primary elements of the NE-CAMS knowledge base designed to support computer modeling and simulation in the nuclear energy arena as listed below. Element 1. The database will contain experimental data that can be used for CFD validation that is relevant to nuclear reactor and plant processes, particularly those important to the nuclear industry and the NRC. Element 2. Qualification standards for data evaluation and classification will be incorporated and applied such that validation data sets will result in well-defined, well-characterized data. Element 3. Standards will be established for the design and operation of experiments for the generation of new validation data sets that are to be submitted to NE-CAMS that addresses the completeness and characterization of the dataset. Element 4. Standards will be developed for performing verification and validation (V&V) to establish confidence levels in CFD analyses of nuclear reactor processes; such processes will be acceptable and recognized by both CFD experts and the NRC.

Kimberlyn C. Mousseau

2011-10-01T23:59:59.000Z

172

Fracture and fatigue properties of Mo-Mo{sub 3}Si-Mo{sub 5}SiB{sub 2} refractory intermetallic alloys at ambient to elevated temperatures (25-1300 degrees Centigrade)  

Science Conference Proceedings (OSTI)

The need for structural materials with high-temperature strength and oxidation resistance coupled with adequate lower-temperature toughness for potential use at temperatures above {approx} 1000 degrees C has remained a persistent challenge in materials science. In this work, one promising class of intermetallic alloys is examined, namely boron-containing molybdenum silicides, with compositions in the range Mo (bal), 12-17 at. percentSi, 8.5 at. percentB, processed using both ingot (I/M) and powder (P/M) metallurgy methods. Specifically, the oxidation (''pesting''), fracture toughness and fatigue-crack propagation resistance of four such alloys, which consisted of {approx}21 to 38 vol. percent a-Mo phase in an intermetallic matrix of Mo3Si and Mo5SiB2 (T2), were characterized at temperatures between 25 degrees and 1300 degrees C. The boron additions were found to confer superior ''pest'' resistance (at 400 degrees to 900 degrees C) as compared to unmodified molybdenum silicides, such as Mo5Si3. Moreover , although the fracture and fatigue properties of the finer-scale P/M alloys were only marginally better than those of MoSi2, for the I/M processed microstructures with coarse distributions of the a-Mo phase, fracture toughness properties were far superior, rising from values above 7 MPa sqrt m at ambient temperatures to almost 12 MPa sqrt m at 1300 degrees C.

Choe, Heeman; Schneibel, J.H.; Ritchie, R.O.

2002-08-01T23:59:59.000Z

173

Ronald E. Gill (NE), Scoville, ID - Level I Curtis Roth (EM), Idaho  

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

E. Gill (NE), E. Gill (NE), Scoville, ID - Level I Curtis Roth (EM), Idaho Falls, ID - Level I Jared T. Howerton (NNSA), Oak Ridge, TN - Level I Richard L. Person (NNSA), DOE HQ - Level I Phillip (Tony) A. Polk (EM), Aiken, SC (Savannah River) - Level IV Jane Powell-Dolan (LM), Cincinnati, OH - Level I Eric M. Thompson (NNSA), Oak Ridge, TN - Level II Congratulations to our newly certified FPDs! The Certification Review Board (CRB or 'the Board') convened on Friday, Sep- tember 24 to review certifi- cation candidates and dis- cuss several topics. The Department of Energy (DOE) met the FY2010 tar- gets for the Root Cause Analysis, Corrective Action Plan metrics 7 and 8, as fol- lows: DOE surpassed the target for Metric #7 (95% of pro-

174

DOE-NE-STD-1004-92; Root Cause Analysis Guidance Document  

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

NE-STD-1004-92 NE-STD-1004-92 DOE GUIDELINE ROOT CAUSE ANALYSIS GUIDANCE DOCUMENT February 1992 U.S. Department of Energy Office of Nuclear Energy Office of Nuclear Safety Policy and Standards Washington, D.C. 20585 ii ABSTRACT DOE Order 5000.3A, "Occurrence Reporting and Processing of Operations Information," investigation and reporting of occurrences (including the performance of root cause analysis) requires the and the selection, implementation, and follow-up of corrective actions. The level of effort expended should be based on the significance attached to the occurrence. Most off-normal occurrences need only a scaled- down effort while most emergency occurrences should be investigated using one or more of the formal analytical models. A discussion of methodologies, instructions, and worksheets in this document guides

175

File:USDA-CE-Production-GIFmaps-NE.pdf | Open Energy Information  

Open Energy Info (EERE)

NE.pdf NE.pdf Jump to: navigation, search File File history File usage Nebraska Ethanol Plant Locations Size of this preview: 776 × 600 pixels. Full resolution ‎(1,650 × 1,275 pixels, file size: 278 KB, MIME type: application/pdf) Description Nebraska Ethanol Plant Locations Sources United States Department of Agriculture Related Technologies Biomass, Biofuels, Ethanol Creation Date 2010-01-19 Extent State Countries United States UN Region Northern America States Nebraska External links http://www.nass.usda.gov/Charts_and_Maps/Ethanol_Plants/ File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 16:18, 27 December 2010 Thumbnail for version as of 16:18, 27 December 2010 1,650 × 1,275 (278 KB) MapBot (Talk | contribs) Automated bot upload

176

ANL/NE-13/9 SHARP Assembly-Scale Multiphysics Demonstration  

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

NE-13/9 NE-13/9 SHARP Assembly-Scale Multiphysics Demonstration Simulations Mathematics and Computation Division & Nuclear Engineering Division About Argonne National Laboratory Argonne is a U.S. Department of Energy laboratory managed by UChicago Argonne, LLC under contract DE-AC02-06CH11357. The Laboratory's main facility is outside Chicago, at 9700 South Cass Avenue, Argonne, Illinois 60439. For information about Argonne and its pioneering science and technology programs, see www.anl.gov. Availability of This Report This report is available, at no cost, at http://www.osti.gov/bridge. It is also available on paper to the U.S. Department of Energy and its contractors, for a processing fee, from: U.S. Department of Energy Office of Scientific and Technical Information

177

Neutron Transfer Studied with a Radioactive beam of 24Ne, using TIARA at SPIRAL  

E-Print Network (OSTI)

A general experimental technique for high resolution studies of nucleon transfer reactions using radioactive beams is briefly described, together with the first new physics results that have been obtained with the new TIARA array. These first results from TIARA are for the reaction 24Ne(d,p)25Ne, studied in inverse kinematics with a pure radioactive beam of 100,000 pps from the SPIRAL facility at GANIL. The reaction probes the energies of neutron orbitals relevant to very neutron rich nuclei in this mass region and the results highlight the emergence of the N=16 magic number for neutrons and the associated disappearance of the N=20 neutron magic number for the very neutron rich neon isotopes.

W. N. Catford; C. N. Timis; R. C. Lemmon; M. Labiche; N. A. Orr; L. Caballero; R. Chapman; M. Chartier; M. Rejmund; H. Savajols; for the TIARA Collaboration

2009-12-20T23:59:59.000Z

178

NE-23 Disposal of Offsite-Generated Defense Radioactive Waste, Ventron  

Office of Legacy Management (LM)

pi/L +3 pi/L +3 *3L 52. NE-23 Disposal of Offsite-Generated Defense Radioactive Waste, Ventron FUSRAP Site Jill E. Lytle, DP-12 NE-23 The Office of Remedial Action and Waste Technology has received a request from the Technical Services Division, DOE-Oak Ridge Operations Office, for a determination of the appropriate disposal location for the material which will result from remedial action of the Ventron site in Beverly, Massachusetts. The Ventron site was used from 1942 to 1948 under contract to the ME0 and AEC for converting uranium oxide to uranium metal powder, as well as later operations involving recovery of uranium from scrap uranium and turnings from the fuel fabrication plant at Hanford, Washington. Full-scale remedial action, anticipated to result in approximately 5,000

179

Study of intergranular embrittlement in Fe-12Mn alloys  

Science Conference Proceedings (OSTI)

A high resolution scanning Auger microscopic study has been performed on the intergranular fracture surfaces of Fe-12Mn steels in the as-austenitized condition. Fracture mode below the ductile-brittle transition temperature was intergranular whenever the alloy was quenched from the austenite field. The intergranular fracture surface failed to reveal any consistent segregation of P, S, As, O, or N. The occasional appearance of S or O on the fracture surface was found to be due to a low density precipitation of MnS and MnO/sub 2/ along the prior austenite boundaries. An AES study with Ar/sup +/ ion-sputtering showed no evidence of manganese enrichment along the prior austenite boundaries, but a slight segregation of carbon which does not appear to be implicated in the tendency toward intergranular fracture. Addition of 0.002% B with a 1000/sup 0/C/1h/WQ treatment yielded a high Charpy impact energy at liquid nitrogen temperature, preventing the intergranular fracture. High resolution AES studies showed that 3 at. % B on the prior austenite grain boundaries is most effective in increasing the grain boundary cohesive strength in an Fe-12Mn alloy. Trace additions of Mg, Zr, or V had negligible effects on the intergranular embrittlement. A 450/sup 0/C temper of the boron-modified alloys was found to cause tempered martensite embrittlement, leading to intergranular fracture. The embrittling treatment of the Fe-12Mn alloys with and without boron additions raised the ductile-brittle transition by 150/sup 0/C. This tempered martensite embrittlement was found to be due to the Mn enrichment of the fracture surface to 32 at. % Mn in the boron-modified alloy and 38 at. % Mn in the unmodified alloy. The Mn-enriched region along the prior austenite grain boundaries upon further tempering is believed to cause nucleation of austenite and to change the chemistry of the intergranular fracture surfaces. 61 figures.

Lee, H.J.

1982-06-01T23:59:59.000Z

180

Constraints on electromagnetic properties of sterile neutrinos from MiniBooNE results  

E-Print Network (OSTI)

Among the class of models with small mixing angles between sterile and active neutrinos, we place constraints on the effective muon-to-sterile neutrino magnetic and electric dipole transition moments from the combined MiniBooNE results for the sterile neutrino mass range of $10\\;\\mathrm{MeV}distribution as a function of polar angle. However, good agreement with the anomalous event distribution in reconstructed energy can be achieved for some values of magnetic and electric moments.

Alexander Radionov

2013-03-19T23:59:59.000Z

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


181

A combined muon-neutrino and electron-neutrino oscillation search at MiniBooNE  

SciTech Connect

MiniBooNE seeks to corroborate or refute the unconfirmed oscillation result from the LSND experiment. If correct, the result implies that a new kind of massive neutrino, with no weak interactions, participates in neutrino oscillations. MiniBooNE searches for {nu}{sub {mu}} {yields} {nu}{sub e} oscillations with the Fermi National Accelerator Laboratory 8 GeV beam line, which produces a {nu}{sub {mu}} beam with an average energy of {approx} 0.8 GeV and an intrinsic {nu}{sub e} content of 0.4%. The neutrino detector is a 6.1 m radius sphere filled with CH{sub 2}, viewed by 1540 photo-multiplier tubes, and located 541 m downstream from the source. This work focuses on the estimation of systematic errors associated with the neutrino flux and neutrino interaction cross section predictions, and in particular, on constraining these uncertainties using in-situ MiniBooNE {nu}{sub {mu}} charged current quasielastic (CCQE) scattering data. A data set with {approx} 100,000 events is identified, with 91% CCQE purity. This data set is used to measure several parameters of the CCQE cross section: the axial mass, the Fermi momentum, the binding energy, and the functional dependence of the axial form factor on four-momentum transfer squared. Constraints on the {nu}{sub {mu}} and {nu}{sub e} fluxes are derived using the {nu}{sub {mu}} CCQE data set. A Monte Carlo study of a combined {nu}{sub {mu}} disappearance and {nu}{sub e} appearance oscillation fit is presented, which improves the {nu}{sub {mu}} {yields} {nu}{sub e} oscillation sensitivity of MiniBooNE with respect to a {nu}{sub e} appearance-only fit by 1.2-1.5{sigma}, depending on the value of {Delta}m{sup 2}.

Monroe, Jocelyn R.; /Columbia U.

2006-07-01T23:59:59.000Z

182

The Sound Emission Board of the KM3NeT Acoustic Positioning System  

E-Print Network (OSTI)

We describe the sound emission board proposed for installation in the acoustic positioning system of the future KM3NeT underwater neutrino telescope. The KM3NeT European consortium aims to build a multi-cubic kilometre underwater neutrino telescope in the deep Mediterranean Sea. In this kind of telescope the mechanical structures holding the optical sensors, which detect the Cherenkov radiation produced by muons emanating from neutrino interactions, are not completely rigid and can move up to dozens of meters in undersea currents. Knowledge of the position of the optical sensors to an accuracy of about 10 cm is needed for adequate muon track reconstruction. A positioning system based on the acoustic triangulation of sound transit time differences between fixed seabed emitters and receiving hydrophones attached to the kilometre-scale vertical flexible structures carrying the optical sensors is being developed. In this paper, we describe the sound emission board developed in the framework of KM3NeT project, whi...

Llorens, C D; Sogorb, T; Bou--Cabo, M; Martnez-Mora, J A; Larosa, G; Adrin-Martnez, S

2012-01-01T23:59:59.000Z

183

Collapse and expansion in the bright-rimmed cloud SFO 11NE  

E-Print Network (OSTI)

We report the results of a search for the double-peaked blue-skewed infall signature in the bright-rimmed cloud core SFO 11NE SMM1. Observations of the optically thick HCO$^{+}$ and optically thin H$^{13}$CO$^{+}$ J=3--2 lines reveal that there is indeed a characteristic double-peaked line profile, but skewed to the red rather than the blue. Modelling of the dust continuum emission and line profiles show that the motions within SFO 11NE SMM1 are consistent with a collapsing central core surrounded by an expanding outer envelope. We show that the collapse is occurring at a similar rate to that expected onto a single solar-mass protostar and is unlikely to represent the large-scale collapse of gas onto the infrared cluster seen at the heart of SFO 11NE SMM1. The outer envelope is expanding at a much greater rate than that expected for a photoevaporated flow from the cloud surface. The modelled expansion is consistent with the bulk cloud re-expansion phase predicted by radiative-driven implosion models of cometary clouds.

M. A Thompson; G. J. White

2004-02-24T23:59:59.000Z

184

The Role of Manganese Dioxide (MnO2) Deposition in Microbiologically Influenced Corrosion  

Science Conference Proceedings (OSTI)

This report documents the role of manganese dioxide (MnO2) in microbiologically influenced corrosion.

2004-12-20T23:59:59.000Z

185

Statistical pairing fluctuation and phase transition in $^{94}Mo$  

E-Print Network (OSTI)

In the framework of BCS model, we have applied the isothermal probability distribution to take into account the statistical fluctuations in calculation of thermodynamical properties of nuclei. The energy and the heat capacity are calculated in $^{94}Mo$ nucleus using the mean gap parameter. The results are compared with the values obtained based on the most probable values, experimental data as well as some other theoretical models. We have shown that heat capacity versus temperature behaves smoothly instead of singular behaviour predicted by the standard BCS model. Also a smooth peak in heat capacity is observed which is a signature of transition from normal to super fluid phase.

Z. Kargar; V. Dehghani

2013-07-16T23:59:59.000Z

186

Statistical pairing fluctuation and phase transition in $^{94}Mo$  

E-Print Network (OSTI)

In the framework of BCS model, we have applied the isothermal probability distribution to take into account the statistical fluctuations in calculation of thermodynamical properties of nuclei. The energy and the heat capacity are calculated in $^{94}Mo$ nucleus using the mean gap parameter. The results are compared with the values obtained based on the most probable values, experimental data as well as some other theoretical models. We have shown that heat capacity versus temperature behaves smoothly instead of singular behaviour predicted by the standard BCS model. Also a smooth peak in heat capacity is observed which is a signature of transition from normal to super fluid phase.

Kargar, Z

2013-01-01T23:59:59.000Z

187

Greenfield Alternative Study LEU-Mo Fuel Fabrication Facility  

Science Conference Proceedings (OSTI)

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.

Washington Division of URS

2008-07-01T23:59:59.000Z

188

Upper critical field of Mo-Ni heterostructures  

SciTech Connect

Upper critical field and its anisotropy have been measured on two very short wavelength Mo-Ni heterostructures of different degrees of perfection, lambda = 13.8A (disordered structure) and lambda = 16.6A (layered structure). In both cases the parallel critical field has an unexpected temperature dependence, a large and temperature dependent anisotropy, and over 60% enhancement over the Clogston-Chandrasekhar limit. Data are fit to the Werthamer-Helfand-Hohenberg theory and the spin-orbit scattering times are found to be 1.79 x 10 T s and 2 x 10 T s, respectively.

Uher, C.; Watson, W.J.; Cohn, J.L.; Schuller, I.K.

1985-12-01T23:59:59.000Z

189

Benthic biological and biogeochemical patterns and processes across an oxygen minimum zone (Pakistan margin, NE Arabian Sea)  

E-Print Network (OSTI)

(Pakistan margin, NE Arabian Sea) Gregory L. Cowie a,?, Lisa A. Levin b a The Sir John Murray Laboratories), and organic matter (OM) availability on benthic communities and processes across the Pakistan Margin

Levin, Lisa

190

Strategic Plan for Nuclear Energy -- Knowledge Base for Advanced Modeling and Simulation (NE-KAMS)  

SciTech Connect

NE-KAMS knowledge base will assist computational analysts, physics model developers, experimentalists, nuclear reactor designers, and federal regulators by: (1) Establishing accepted standards, requirements and best practices for V&V and UQ of computational models and simulations, (2) Establishing accepted standards and procedures for qualifying and classifying experimental and numerical benchmark data, (3) Providing readily accessible databases for nuclear energy related experimental and numerical benchmark data that can be used in V&V assessments and computational methods development, (4) Providing a searchable knowledge base of information, documents and data on V&V and UQ, and (5) Providing web-enabled applications, tools and utilities for V&V and UQ activities, data assessment and processing, and information and data searches. From its inception, NE-KAMS will directly support nuclear energy research, development and demonstration programs within the U.S. Department of Energy (DOE), including the Consortium for Advanced Simulation of Light Water Reactors (CASL), the Nuclear Energy Advanced Modeling and Simulation (NEAMS), the Light Water Reactor Sustainability (LWRS), the Small Modular Reactors (SMR), and the Next Generation Nuclear Power Plant (NGNP) programs. These programs all involve computational modeling and simulation (M&S) of nuclear reactor systems, components and processes, and it is envisioned that NE-KAMS will help to coordinate and facilitate collaboration and sharing of resources and expertise for V&V and UQ across these programs. In addition, from the outset, NE-KAMS will support the use of computational M&S in the nuclear industry by developing guidelines and recommended practices aimed at quantifying the uncertainty and assessing the applicability of existing analysis models and methods. The NE-KAMS effort will initially focus on supporting the use of computational fluid dynamics (CFD) and thermal hydraulics (T/H) analysis for M&S of nuclear reactor systems, components and processes, and will later expand to include materials, fuel system performance and other areas of M&S as time and funding allow.

Rich Johnson; Kimberlyn C. Mousseau; Hyung Lee

2011-09-01T23:59:59.000Z

191

C:\\ANNUAL\\VENTCHAP.V8\\NGA.VP  

Gasoline and Diesel Fuel Update (EIA)

4 NJ WY AK AL CA AR CO CT DE FL GA HI ID KS IL IN IA IA KY LA ME MI MA MD MN MS MT MO NE ND OH NV NM NY NH NC OK OR PA RI SC SD TN TX UT VT WA WV WI AZ VA DC 0.00-1.99 2.00-2.99...

192

C:\\ANNUAL\\VENTCHAP.V8\\NGAla1109.vp  

Gasoline and Diesel Fuel Update (EIA)

0 NJ WY AK AL CA AR CO CT DE FL GA HI ID KS IL IN IA IA KY LA ME MI MA MD MN MS MT MO NE ND OH NV NM NY NH NC OK OR PA RI SC SD TN TX UT VT WA WV WI AZ VA DC Sources: Energy...

193

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

Gasoline and Diesel Fuel Update (EIA)

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

194

NGA98fin5.vp  

Annual Energy Outlook 2012 (EIA)

NJ WY AK AL CA AR CO CT DE FL GA HI ID KS IL IN IA IA KY LA ME MI MA MD MN MS MT MO NE ND OH NV NM NY NH NC OK OR PA RI SC SD TN TX UT VT WA WV WI AZ VA DC 0.00-1.99 2.00-2.99...

195

U.S. Energy Information Administration | Annual Energy Outlook...  

Annual Energy Outlook 2012 (EIA)

3 Regional maps Figure F6. Coal supply regions WA ID OR CA NV UT TX OK AR MO LA MS AL GA FL TN SC NC KY VA WV WY CO SD ND MI MN WI IL IN OH MD PA NJ DE CT MA NH VT NY ME RI MT NE...

196

Studying the Effect of Carbon on DU-Mo Foil Fabrication for the ...  

Science Conference Proceedings (OSTI)

In support of this program, efforts are ongoing to develop and validate a monolithic depleted uranium molybdenum (DU-Mo) foil fabrication process adaptable for...

197

Surface Structures of Cubo-octahedral Pt-Mo Catalyst Nanoparticles from Monte Carlo Simulations  

E-Print Network (OSTI)

of Cubo-octahedral Pt-Mo Catalyst Nanoparticles from Montefuel cells, new electrode catalysts that have less preciousto designing Pt bimetallic catalysts is knowledge of the

Wang, Guofeng; Van Hove, M.A.; Ross, P.N.; Baskes, M.I.

2005-01-01T23:59:59.000Z

198

Pressure Water Leaching Molybdenum and Nickel from Mo-Ni ore of ...  

Science Conference Proceedings (OSTI)

Presentation Title, Pressure Water Leaching Molybdenum and Nickel from Mo-Ni ore of Black Shale without Reagent. Author(s), Zhigan Deng. On-Site Speaker...

199

Disorder effects in half-metallic Sr 2 FeMoO 6 single crystals  

Science Conference Proceedings (OSTI)

Double perovskites such as Sr 2 FeMoO 6 (SFMO) have been predicted to be half-metallic (100% spin polarized). However

Raghava P. Panguluri; Sheng Xu; Yutaka Moritomo; I. V. Solovyev; B. Nadgorny

2009-01-01T23:59:59.000Z

200

Synthesis of molybdenum disulfide (MoS{sub 2}) for lithium ion battery applications  

Science Conference Proceedings (OSTI)

This paper reports the use of a rheological phase reaction method for preparing MoS{sub 2} nanoflakes. The characterization by powder X-ray diffraction indicated that MoS{sub 2} had been formed. High resolution electron microscopy observation revealed that the as-prepared MoS{sub 2} nanoflakes had started to curve and partly form MoS{sub 2} nanotubes. The lithium intercalation/de-intercalation behavior of as-prepared MoS{sub 2} nanoflake electrode was also investigated. It was found that the MoS{sub 2} nanoflake electrode exhibited higher specific capacity, with very high cycling stability, compared to MoS{sub 2} nanoparticle electrode. The possible reasons for the high electrochemical performance of the nanoflakes electrodes are also discussed. The outstanding electrochemical properties of MoS{sub 2} nanoflakes obtained by this method make it possible for MoS{sub 2} to be used as a promising anode material.

Feng Chuanqi [Key Laboratory for Synthesis and Applications of Organic Functional Molecules, Hubei University, Wuhan 430062 (China); Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2522 (Australia); Ma Jun; Li Hua [Key Laboratory for Synthesis and Applications of Organic Functional Molecules, Hubei University, Wuhan 430062 (China); Zeng Rong [Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2522 (Australia); Guo Zaiping, E-mail: zguo@uow.edu.au [School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, NSW 2522 (Australia); Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2522 (Australia); ARC Centre of Excellence for Electromaterials Science, University of Wollongong, NSW 2522 (Australia); Liu Huakun [Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2522 (Australia); ARC Centre of Excellence for Electromaterials Science, University of Wollongong, NSW 2522 (Australia)

2009-09-15T23:59:59.000Z

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


201

Utilization of Recycled MoO3 and Mill Scale for Synthesis of High ...  

Science Conference Proceedings (OSTI)

... by ammonia gas neutralization method and reduced by hydrogen to produce a high ... Molybdenum and Nickel from Mo-Ni ore of Black Shale without Reagent.

202

New limit on the neutrinoless double beta decay of /sup 100/Mo  

SciTech Connect

A search for the neutrinoless double beta decay of /sup 100/Mo was conducted using thin Mo films and solid state Si detectors. The experiment has collected 3500 hours of data operating underground in a deep silver mine (3290 M.W.E.). Only one event was found to be consistent with neutrinoless double beta decay. Using this one event, a limit of greater than or equal to 1 x 10/sup 22/ years (1 sigma) is set on the /sup 100/Mo half-life. This is approximately five times larger than the best previous /sup 100/Mo limit.

Krivicich, J.M.

1988-03-01T23:59:59.000Z

203

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

Science Conference Proceedings (OSTI)

{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.

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

2010-01-01T23:59:59.000Z

204

DOE - Office of Legacy Management -- Twin Cities Ammunition - MN 0-01  

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

Twin Cities Ammunition - MN 0-01 Twin Cities Ammunition - MN 0-01 FUSRAP Considered Sites Site: TWIN CITIES AMMUNITION (MN.0-01) Eliminated from further consideration under FUSRAP - Referred to DOD Designated Name: Not Designated Alternate Name: None Location: New Brighton , Minnesota MN.0-01-1 Evaluation Year: 1987 MN.0-01-2 Site Operations: Site was formerly licensed under 10CFR 70 by the NRC. MN.0-01-1 MN.0-01-2 Site Disposition: Eliminated - No Authority - Referred to DOD MN.0-01-1 Radioactive Materials Handled: None Indicated Primary Radioactive Materials Handled: None Radiological Survey(s): None Indicated Site Status: Eliminated from further consideration under FUSRAP - Referred to DOD MN.0-01-2 Also see Documents Related to TWIN CITIES AMMUNITION MN.0-01-1 - DOE Letter; Mott to Spence; Listings of Military

205

Astrophysically Important 19Ne States Studied with the 2H(18F,alpha+15O)n Reaction  

Science Conference Proceedings (OSTI)

The nuclear structure of {sup 19}Ne near the proton threshold is of interest for understanding the rates of proton-induced reactions on {sup 18}F in novae. Analogues for several states in the mirror nucleus {sup 19}F have not yet been identified in {sup 19}Ne indicating the level structure of {sup 19}Ne in this region is incomplete. The {sup 18}F(d;n){sup 19}Ne and {sup 18}F(d,p){sup 19}F reactions have been measured simultaneously at E{sub c.m.} = 14.9 MeV. The experiments were performed at the Holifield Radioactive Ion Beam Facility (HRIBF) of Oak Ridge National Laboratory (ORNL) by bombarding a 720-mg/cm{sub 2} CD{sub 2} target with a radioactive {sup 18}F beam. The {sup 19}Ne states of interest near the proton threshold decay by breakup into a and {sup 15}O particles. These decay products were detected in coincidence with position-sensitive E-{Delta}E silicon telescopes. The {alpha} and {sup 15}N particles from the break up of the mirror nucleus {sup 19}F were also measured with these detectors. Particle identification, coincidence, and Q-value requirements enable us to distinguish the reaction of interest from other reactions. The reconstruction of relative energy of the detected particles reveals the excited states of {sup 19}Ne and {sup 19}F which are populated. The neutron (proton) angular distributions for states in {sup 19}Ne ({sup 19}F) were extracted using momentum conservation. The observed states in {sup 19}Ne and {sup 19}F will be presented.

Adekola, Aderemi S [ORNL; Bardayan, Daniel W [ORNL; Blackmon, Jeff C [ORNL; Brune, C. [Ohio University; Chae, K. Y. [University of Tennessee, Knoxville (UTK); Champagne, A. E. [University of North Carolina, Chapel Hill; Domizioli, Carlo P [ORNL; Greife, U. [Colorado School of Mines, Golden; Heinen, Z. [Ohio University; Hornish, M. [Ohio University; Johnson, Micah [ORNL; Jones, K. L. [University of Tennessee, Knoxville (UTK); Kapler, R. [University of Tennessee, Knoxville (UTK); Livesay, Jake [ORNL; Ma, Zhanwen [ORNL; Massey, T. [Ohio University; Moazen, Brian [University of Tennessee, Knoxville (UTK); Nesaraja, Caroline D [ORNL; Pain, Steven D [ORNL; ShrinerJr., J. F. [Tennessee Technological University; Thomas, J. S. [Rutgers University; Smith, Nathan A [ORNL; Smith, Michael Scott [ORNL; Visser, D. W. [University of North Carolina, Chapel Hill; Voinov, A. [Ohio University

2009-01-01T23:59:59.000Z

206

Effects of Mn Doping on the Dielectric Properties of Nnanostructured ...  

Science Conference Proceedings (OSTI)

In order to further improve the insulation resistance, manganese (Mn) was introduced (0.005 at%-1.0 at%) into the TiO2 system by a powder coating process...

207

International Falls, MN Natural Gas Pipeline Imports From Canada...  

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

per Thousand Cubic Feet) International Falls, MN Natural Gas Pipeline Imports From Canada (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

208

International Falls, MN Natural Gas Pipeline Imports From Canada...  

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

Million Cubic Feet) International Falls, MN Natural Gas Pipeline Imports From Canada (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

209

NE-23  

Office of Legacy Management (LM)

s,' s,' Whidd Pk. Yilljam West West Orange Tennis Club, Inc. 200 Pleasant Valley Way West Orange, New Jersey 07052 Dear Mr. West: The Department of Energy (DOE), as part of its Formerly Utilized Sites Remedial Action Program (FUSRAP), has reviewed information on Vitro Laboratories, formerly located on what is now property of the West Orange Tennis Club, to determine whether it contains residual radioactivity traceable to activities conducted on behalf of the Atomic Energy Commission (a predecessor to DOE). A radiological survey indicated that the radiation levels and radionuclide concentrations are at or near natural background levels. Therefore, no remedial action is required, and DOE is eliminating the former Vitro site from further consideration under FL&RAP.

210

NE-24  

Office of Legacy Management (LM)

the Bureau of Hines Site at Albany, Oregon, for Remedial the Bureau of Hines Site at Albany, Oregon, for Remedial Action Under the Formerly Utilized Sites Remedial Action Program I L@ _I' J.-La&one, Manager Oak Ridge Operations Office Based on the data in the attached draft reports, it has been determined that the subject site is contaminated with residual radioactive material ' as a result of Manhattan Engineer District/Atomic Energy Commission operations P * at this site. The contamination is in excess of the acceptable guidelines and warrants some form of remedial action under the Fornlerly Utilized Sites Reriledial Action Program. It should be noted that the attached reports are draft reports and although subject to change, the changes expected will not effect the designation of the site; therefore, the reports are Suitable for -

211

Diluted magnetic semiconductor effects in Mn-implanted silicon carbide  

Science Conference Proceedings (OSTI)

Light transmission and Faraday rotation spectra measured at the temperature of 2 K were compared for silicon carbide single crystals of 4H polytype (4H-SiC), implanted with 3.8 x 10{sup 16} cm{sup -2} of Mn ions at the beam energy of 190 keV, and a control 4H-SiC single crystal sample, which was not implanted. Mn ion implantation led to the creation of a Mn-doped surface layer with the average Mn concentration of 10{sup 21} cm{sup -3} and a thickness of approximately 0.2 {mu}m. Transmission of light through the implanted crystal changed only slightly in comparison with the control sample, which however, corresponded to a relatively strong attenuation in the implanted layer. This was interpreted as a result of scattering, which emerges in the surface layer due to optical nonuniformities, created by the high energy ion irradiation. The presence of a thin Mn-ion-containing surface layer led, despite its small thickness, to noticeable changes in the sample Faraday rotation spectra. The estimated values of the Verdet constant for this layer were about three orders of magnitude larger and of opposite sign compared to the Verdet constant values of the undoped sample. Magnetic field dependencies of the Faraday rotation contribution from the implanted layer were found to be saturating functions, which points to a proportionality of the Faraday rotation to the magnetization of the paramagnetic Mn ion subsystem. Based on these findings we conclude that the Mn-implanted SiC layer exhibits magneto-optical properties typical of a diluted magnetic semiconductor. At the same time, no ferromagnetic ordering was observed in the studied (Si, Mn)C sample.

Komarov, A. V.; Ryabchenko, S. M. [Institute of Physics of the National Academy of Sciences of Ukraine, 46 Nauki Ave., Kiev 03028 (Ukraine); Los, A. V. [ISS Ltd., Semiconductors and Circuits Lab, 15 Bozhenko Street, Kiev 03680 (Ukraine); Freescale Semiconductor Ukraine LLC., 15 Bozhenko Street, Kiev 03680 (Ukraine); Romanenko, S. M. [ISS Ltd., Semiconductors and Circuits Lab, 15 Bozhenko Street, Kiev 03680 (Ukraine)

2011-04-15T23:59:59.000Z

212

mo funcionan las Células de Combustible  

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

mo funcionan las Células de Combustible Cómo funcionan las Células de Combustible Diagrama: Como funciona un MPE de combustible de célula. 1. El combustible de hidrógeno es canalizado a través de un campo de placas de flujo para el ánodo al otro lado de la pila de combustible, mientras que el oxígeno del aire se canaliza hacia el cátodo del otro lado de la celda. 2. En el ánodo, un catalizador de platino hace que el hidrógeno se divida en iones positivos de hidrógeno (protones) y electrones de carga negativa. 3. La Membrana de Electrolito Polimérico (MPE) sólo permite que los iones de carga positiva pasen a través de ella hacia el cátodo. Los electrones de carga negativa deben viajar a lo largo de un circuito externo hacia el cátodo, creando una corriente eléctrica. 4. En el cátodo, los electrones y los iones positivos de hidrógeno se combinan con el oxígeno para formar agua, que fluye fuera de la célula.

213

Characterization of U-Mo Foils for AFIP-7  

SciTech Connect

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.

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

214

Development of FeNiMoB thin film materials for microfabricated magnetoelastic sensors  

Science Conference Proceedings (OSTI)

Metglas{sup TM} 2826MB foils of 25-30 {mu}m thickness with the composition of Fe{sub 40}Ni{sub 38}Mo{sub 4}B{sub 18} have been used for magnetoelastic sensors in various applications over many years. This work is directed at the investigation of {approx}3 {mu}m thick iron-nickel-molybdenum-boron (FeNiMoB) thin films that are intended for integrated microsystems. The films are deposited on Si substrate by co-sputtering of iron-nickel (FeNi), molybdenum (Mo), and boron (B) targets. The results show that dopants of Mo and B can significantly change the microstructure and magnetic properties of FeNi materials. When FeNi is doped with only Mo its crystal structure changes from polycrystalline to amorphous with the increase of dopant concentration; the transition point is found at about 10 at. % of Mo content. A significant change in anisotropic magnetic properties of FeNi is also observed as the Mo dopant level increases. The coercivity of FeNi films doped with Mo decreases to a value less than one third of the value without dopant. Doping the FeNi with B together with Mo considerably decreases the value of coercivity and the out-of-plane magnetic anisotropy properties, and it also greatly changes the microstructure of the material. In addition, doping B to FeNiMo remarkably reduces the remanence of the material. The film material that is fabricated using an optimized process is magnetically as soft as amorphous Metglas{sup TM} 2826MB with a coercivity of less than 40 Am{sup -1}. The findings of this study provide us a better understanding of the effects of the compositions and microstructure of FeNiMoB thin film materials on their magnetic properties.

Liang Cai; Gooneratne, Chinthaka; Cha, Dongkyu; Chen Long; Kosel, Jurgen [Computer Electrical and Mathematical Sciences and Engineering, King Abdullah University of Science and Technology, 4700 KAUST, Thuwal 23955 (Saudi Arabia); Gianchandani, Yogesh [Department of Electrical Engineering and Computer Science, 1301 Beal Ave., University of Michigan, Ann Arbor, Michigan 48109 (United States)

2012-12-01T23:59:59.000Z

215

Electrodeposition and characterization of nanocrystalline Ni-Mo catalysts for hydrogen production  

Science Conference Proceedings (OSTI)

Ni-Mo nanocrystalline deposits (7-43 nm) with a nodular morphology were prepared by electrodeposition using direct current from citrate-ammonia solutions. They exhibited a single Ni-Mo solid solution phase. The size of the nodules increased as electroplating ...

J. Halim; R. Abdel-Karim; S. El-Raghy; M. Nabil; A. Waheed

2012-01-01T23:59:59.000Z

216

1 Summary: NE cod FSP survey 2003-08 The trawler Abbie Lee was  

E-Print Network (OSTI)

chartered in October/November 2008 to carry out the sixth in a series of FSP surveys of cod and other gadoids off the NE coast of England. Surveys since 2005 have utilised tows spread out over the survey area, with additional tows in defined areas with coarser seabed types (hard ground) where cod abundance is expected to be greatest. As in previous FSP surveys, cod were most abundant on or near the hard ground, whereas haddock were mainly on the softer seabed sediments offshore. Whiting distribution showed no clear relationship with seabed type. 6 5

Jos De Oliveira; Guy Pasco; Mike Armstrong; Peter Randall; Cefas Lowestoft

2009-01-01T23:59:59.000Z

217

Horn Operational Experience in K2K, MiniBooNE, NuMI and CNGS  

E-Print Network (OSTI)

This paper gives an overview of the operation and experience gained in the running of magnetic horns in conventional neutrino beam lines (K2K, MiniBooNE, NuMI and CNGS) over the last decade. Increasing beam power puts higher demands on horn conductors but even more on their hydraulic and electrical systems, while the horn environment itself becomes more hostile due to radiation. Experience shows that designing horns for remote handling and testing them extensively without beam become prerequisites for successful future neutrino beam lines.

Pardons, A

2008-01-01T23:59:59.000Z

218

Temperature Effects on the Perturber Induced Shift of Dopant Ionization Energies in He and Ne  

SciTech Connect

In this Letter, temperature effects on the perturber induced shift {Delta}{sub D}({rho}{sub P}) [{rho}{sub P} {equivalent_to} perturber number density] of the dopant ionization energy in the repulsive gases Ne and He are investigated at low to medium perturber densities (i.e., {rho}{sub P} {<=} 6.0 x 10{sup 21} cm{sup -3}). We show that these effects arise form changes in the ensemble averaged dopant/perturber polarization energy rather than from changes in the energy of the quasi-free electron.

C Evans; Y Lushtak; X Shi; L Li; G Findley

2011-12-31T23:59:59.000Z

219

DOE-NE Proliferation and Terrorism Risk Assessment: FY12 Plans Update  

SciTech Connect

This presentation provides background information on FY12 plans for the DOE Office of Nuclear Energy Proliferation and Terrorism Risk Assessment program. Program plans, organization, and individual project elements are described. Research objectives are: (1) Develop technologies and other solutions that can improve the reliability, sustain the safety, and extend the life of current reactors; (2) Develop improvements in the affordability of new reactors to enable nuclear energy; (3) Develop Sustainable Nuclear Fuel Cycles; and (4) Understand and minimize the risks of nuclear proliferation and terrorism - Goal is to enable the use of risk information to inform NE R&D program planning.

Sadasivan, Pratap [Los Alamos National Laboratory

2012-06-21T23:59:59.000Z

220

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

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

Domestic production of medical isotope Mo-99 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 (Mo-99) production, with virtually no losses in Mo-99 yields or uranium recovery. May 13, 2013 From left, Los Alamos scientists Roy Copping, Sean Reilly, and Daniel Rios. Copping examines the Buchi Multivapor P-12 Evaporator, and Reilly and Rios are at the Agilent Technologies Cary 60 UV-Vis Spectrometer. From left, Los Alamos scientists Sean Reilly, Roy Copping, and Daniel Rios. Sean is looking at the Buchi Multivapor P-12 Evaporator, and Roy and Daniel are at the Agilent Technologies Cary 60 UV-Vis Spectrometer. Contact Nancy Ambrosiano Communications Office (505) 667-0471

Note: This page contains sample records for the topic "mn mo ne" from the National Library of EnergyBeta (NLEBeta).
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221

Development of LEU targets for {sup 99}Mo production and their chemical processing status 1993  

SciTech Connect

Most of the world`s supply of {sup 99m}{Tc} for medical purposes is currently produced from {sup 99}Mo derived from the fastening of high enriched uranium (HEU). Substitution of low enriched uranium (LEU) silicide fuel for the HEU alloy and aluminide fuels used in current target designs will allow equivalent {sup 99}Mo yields with little change in target geometries. Substitution of uranium metal for uranium oxide films in other target designs will also allow the substitution of LEU for HEU. In 1993, DOE renewed funding that was terminated in 1990 for development of LEU targets for {sup 99}Mo production. During the past year, our efforts were to (1) renew contact with {sup 99}Mo producers, (2) define the means to test our process for recovering {sup 99}Mo from irradiated LEU-silicide targets, and (3) begin to test our process on spent LEU-silicide miniplates stored at ANL from past fuel development studies.

Vandegrift, G.F.; Hutter, J.C.; Srinivasan, B.; Matos, J.E.; Snelgrove, J.L.

1993-10-01T23:59:59.000Z

222

Exfoliated MoS2 Nanocomposite as an Anode Material for Lithium Ion Batteries  

DOE Green Energy (OSTI)

Nanocomposites of molybdenum disulfide (MoS2) and poly(ethylene oxide) (PEO) were prepared by the exfoliation/absorption method that involved the hydrolysis of lithiated MoS2 in an aqueous solution of PEO. The absorption and subsequent interaction of PEO on the colloidal MoS2 formed a nanocomposite which restacked into layered secondary particles. X-ray diffraction and high resolution TEM indicated that highly disordered nanocomposites were produced when the Lix(PEO)yMoS2 stoichiometry was limited to y < 1. An improvement of greater than 5x in capacity accompanied by high cycle stability and efficiency was observed for the disordered nanocomposites providing a novel approach to utilize low-cost MoS2 and similar materials for a high capacity energy storage system.

Xiao, Jie; Choi, Daiwon; Cosimbescu, Lelia; Koech, Phillip K.; Liu, Jun; Lemmon, John P.

2010-05-04T23:59:59.000Z

223

Structural evolution in crystalline MoO{sub 3} nanoparticles with tunable size  

SciTech Connect

In this study MoO{sub 3} nanoparticles were prepared in porous Vycor glass by impregnation-decomposition cycles (IDC) with molybdenum(VI) 2-ethylhexanoate. X-ray diffraction data show that the nanoparticles are crystalline and are in the orthorhombic {alpha}-MoO{sub 3} phase. Raman spectroscopy data also indicate the formation of this phase. The profiles in the Raman spectra changed with the number of IDC, indicating a structural evolution of the MoO{sub 3} nanoparticles. The IDC methodology promoted a linear mass increase and allowed tuning the nanoparticle size. Analysis of HRTEM images revealed that for 3, 5 and 7 IDC, the MoO{sub 3} nanoparticle average diameters are 3.2, 3.6 and 4.2 nm. Diffuse reflectance spectroscopy indicates a consistent red shift in the band gap from 3.35 to 3.29 eV as the size increases from 3.2 to 4.2 nm. This observed red shift in the band gap of the MoO{sub 3} nanoparticles is presumably due to quantum confinement effects. - Graphical abstract: Modification of profile Raman spectra for crystalline MoO{sub 3} nanoparticles in function of the particle size. Highlights: Black-Right-Pointing-Pointer Structural evolution of the MoO{sub 3} nanoparticles as a function of the crystallite size. Black-Right-Pointing-Pointer Tunable optical properties by controlling the MoO{sub 3} nanoparticle size. Black-Right-Pointing-Pointer The impregnation-decomposition methodology allowed tuning the nanoparticle size. Black-Right-Pointing-Pointer The red shift in the band gap of the MoO{sub 3} nanoparticles is due to quantum size effect. Black-Right-Pointing-Pointer The short-distance order in MoO{sub 3} nanoparticle is function to area/volume ratio.

Barros Santos, Elias de; Aparecido Sigoli, Fernando [Functional Materials Laboratory, Institute of Chemistry, University of Campinas, UNICAMP, PO Box 6154, Zip Code 13083-970 Campinas, SP (Brazil); Odone Mazali, Italo, E-mail: mazali@iqm.unicamp.br [Functional Materials Laboratory, Institute of Chemistry, University of Campinas, UNICAMP, PO Box 6154, Zip Code 13083-970 Campinas, SP (Brazil)

2012-06-15T23:59:59.000Z

224

Mo-99/Tc-99m Separation: An Assessment of Technical Options  

Science Conference Proceedings (OSTI)

Several strategies for the effective separation of 99mTc from 99Mo have been developed and validated. Due to the success of column chromatographic separation using acidic alumina coupled with high specific activity fission 99Mo (F 99Mo) for production of 99Mo/99mTc generators, however, most technologies until recently have generated little interest. The reduced availability of F 99Mo and consequently the shortage of 99Mo/99mTc column generators in the recent past have resurrected interest in the production of 99Mo as well as 99mTc by alternate routes. Most of these alternative production processes require separation techniques capable of providing clinical grade 99mTc from low specific activity 99Mo or irradiated Mo targets. For this reason there has been renewed interest in alternate separation routes. This paper reviews the reported separation technologies which include column chromatography, solvent extraction, sublimation and gel systems that have been traditionally used for the fabrication of 99Mo/99mTc generator systems. The comparative advantage, disadvantage, and technical challenges toward adapting the emerging requirements are discussed. New developments such as solid-phase column extraction, electrochemical separation, extraction chromatography, supported liquid membrane (SLM) and thermochromatographic techniques are also being evaluated for their potential application in the changed scenario of providing 99mTc from alternate routes. Based on the analysis provided in this review, it appears that some proven separation technologies can be quickly resurrected for the separation of clinical grade 99mTc from macroscopic levels of reactor or cyclotron irradiated molybdenum targets. Furthermore, emerging technologies can be developed further to respond to the expected changing modes of 99mTc production.

Dash, A [Bhabha Atomic Research Centre, Mumbai, India; Pillai, M R A [Bhabha Atomic Research Centre, Mumbai, India; Knapp Jr, Russ F [ORNL

2013-01-01T23:59:59.000Z

225

Mo-containing tetrahedral amorphous carbon deposited by dual filtered cathodic vacuum arc with selective pulsed bias voltage  

E-Print Network (OSTI)

only. Fig.2 (a) Electrical resistivity of ta-C:Mo films as aC plasma pulses; (b) Electrical resistivity of the ta-C:MoIt found that the electrical resistivity decreases with an

Pasaja, Nitisak; Sansongsiri, Sakon; Anders, Andre; Vilaithong, Thiraphat; Intasiri, Sawate

2006-01-01T23:59:59.000Z

226

The oxidation of Ba dosed Mo(100) surfaces with O/sub 2/ at moderately high temperatures  

DOE Green Energy (OSTI)

The oxidation of Mo(100) and Ba-covered Mo(100) by O/sub 2/ have been examined at moderately high temperature (700 to 1400/sup 0/K) using x-ray photoelectron spectroscopy. Results indicate that the Ba or BaO overlayer retards but does not prevent oxidation of the underlying Mo surface. The high temperature surface chemistry of the O/Ba/Mo surface is described. 11 refs., 3 figs.

Rogers, J.W. Jr.; Blair, D.S.; Paffett, M.T.

1987-01-01T23:59:59.000Z

227

Helioseismic Constraints on the Solar Ne/O Ratio and Heavy Element Abundances  

E-Print Network (OSTI)

We examine the constraints imposed by helioseismic data on the solar heavy element abundances. In prior work we argued that the measured depth of the surface convection zone R_CZ and the surface helium abundance Y_surf were good metallicity indicators which placed separable constraints on light metals (CNONe) and the heavier species with good relative meteoritic abundances. The resulting interiors-based abundance scale was higher than some published studies based on 3D model atmospheres at a highly significant level. In this paper we explore the usage of the solar sound speed in the radiative interior as an additional diagnostic, and find that it is sensitive to changes in the Ne/O ratio even for models constructed to have the same R_CZ and Y_surf. Three distinct helioseismic tests (opacity in the radiative core, ionization in the convection zone, and the core mean molecular weight) yield consistent results. Our preferred O, Ne and Fe abundances are 8.86 +/-0.04, 8.15 +/-0.17 and 7.50 +/-0.05 respectively. Th...

Delahaye, F; Pinsonneault, L; Zeippen, C J

2010-01-01T23:59:59.000Z

228

Light charged particle emission from hot $^{32}$S$^{*}$ formed in $^{20}$Ne + $^{12}$C reaction  

E-Print Network (OSTI)

Inclusive energy distributions for light charged particles ($p, d, t$ and $\\alpha$) have been measured in the $^{20}$Ne (158, 170, 180, 200 MeV) + $^{12}$C reactions in the angular range 10$^{o}$ -- 50$^{o}$. Exclusive light charged particle energy distribution measurements were also done for the same system at 158 MeV bombarding energy by in-plane light charged particle -- fragment coincidence. Pre-equilibrium components have been separated out from proton energy spectra using moving source model considering two sources. The data have been compared with the predictions of the statistical model code CASCADE. It has been observed that significant deformation effects were needed to be introduced in the compound nucleus in order to explain the shape of the evaporated $d, t$ energy spectra. For protons, evaporated energy spectra were rather insensitive to nuclear deformation, though angular distributions could not be explained without deformation. Decay sequence of the hot $^{32}$S nucleus has been investigated through exclusive light charged particle measurements using the $^{20}$Ne (158 MeV) + $^{12}$C reaction. Information on the sequential decay chain has been extracted through comparison of the experimental data with the predictions of the statistical model. It is observed from the present analysis that exclusive light charged particle data may be used as a powerful tool to probe the decay sequence of hot light compound systems.

Aparajita Dey; S. Bhattacharya; C. Bhattacharya; K. Banerjee; T. K. Rana; S. Kundu; S. R. Banerjee; S. Mukhopadhyay; D. Gupta; R. Saha

2008-07-01T23:59:59.000Z

229

Characterization of nonthermal Ne-N{sub 2} mixture radio frequency discharge  

Science Conference Proceedings (OSTI)

This paper deals with optical emission spectroscopic studies of low pressure (p=0.1{yields}0.5 mbar) Ne-N{sub 2} capacitively coupled radio frequency (rf) plasma that can be used for plasma nitriding, etc. It reports the methods to calculate the electron temperature (T{sub e}) in nonthermal plasmas. Since, the selected Ne I lines, used to calculate electron temperature, are found in corona balance; therefore, it allows us to use modified Boltzmann technique to calculate electron temperature. Langmuir probe is also used to calculate electron temperature and electron energy distribution functions (EEDFs). The measurements are worked out for different discharge parameters like neon percentage, filling pressure and RF power. It is found that electron temperature increases with the increase in neon percentage and decreases with the increase in pressure, whereas excitation temperature (T{sub exc}) increases with power, neon percentage, and decreases with pressure. It is also observed that electron temperature measured by Langmuir probe technique is slightly greater than the one measured via modified Boltzmann plot method. The tails of the EEDFs gain height and extend toward the higher energy with the increase in neon percentage in the mixture.

Rehman, N. U.; Zakaullah, M. [Department of Physics, Quaid-i-Azam University, 45320 Islamabad (Pakistan); Khan, F. U. [Department of Physics, Gomal University, 29050 D.I. Khan (Pakistan); Naseer, S. [Department of Physics, Peshawar University, 25120 Peshawar (Pakistan)

2008-12-15T23:59:59.000Z

230

Radiative rates and electron impact excitation rate coefficients for Ne-like selenium, Se XXV  

Science Conference Proceedings (OSTI)

In this article we report calculations of energy levels, radiative rates, electron impact collision strengths, and effective collision strengths for transitions among the 241 fine-structure levels arising from 2l{sup 8} and 2l{sup 7}n{sup '}l{sup '} (n{sup '{241 levels. The effective collision strengths are reported for all 28920 transitions among the 241 levels over a wide temperature range up to 10 keV. To assess the reliability and accuracy of the present collisional data, we have performed a 27-state close-coupling calculation, employing the Dirac R-matrix theory. The results from the close-coupling calculation and the independent-process calculation for the identical target states are found to be in good agreement. - Highlights: {yields} Radiative and collisional atomic data are presented for the lowest 241 fine-structure levels in Ne-like Se. {yields} Calculations are performed using the FAC package. {yields} Resonances enhance significantly a large amount of transitions. {yields} Radiative damping effects are significant for many transitions. {yields} Close-coupling effects are small in Ne-like Se.

Wang, K.; Chen, C.Y., E-mail: chychen@fudan.edu.cn; Huang, M.; Wang, Y.S.; Zou, Y.M.

2011-07-15T23:59:59.000Z

231

Photoionization-pumped, Ne II, x-ray laser studies project. Final report  

SciTech Connect

The energetics of this pumping scheme are shown. Short-pulse (50 to 100 ps) laser irradiation of an appropriate x-ray flashlamp medium generates broad-band emission in the range of 300 to 800 eV which preferentially photoionizes Ne to the /sup 2/S state of Ne II creating an inversion at approximately 27 eV. Although this approach does not depend on precise spectral overlap between the x-ray pump radiation and the medium to be pumped, it does require that the x-ray medium remain un-ionized prior to photoionization by the soft x-ray emission. Well-controlled focus conditions are required to ensure that the x-ray medium is not subjected to electron or x-ray preheat prior to irradiation by the soft x-ray source. The magnitude of the population inversion is predicted to be critically dependent upon rapid photoionization of the two states; therefore, ultra-short pulse irradiation of the laser flashlamps is required.

Richardson, M.C.; Hagelstein, P.L.; Eckart, M.J.; Forsyth, J.M.; Gerrassimenko, M.; Soures, J.M.

1984-01-01T23:59:59.000Z

232

Studies on a novel secondary battery: MH/MnO{sub 2} rechargeable battery. 2: Characteristics of the MnO{sub 2} cathode  

SciTech Connect

The characteristics of the MnO{sub 2} cathode of a MH/MnO{sub 2} battery have been studied by cyclic voltammetry, x-ray diffraction, and potentiostatic techniques. It was found that the addition of Ni(OH){sub 2} to the MnO{sub 2} can prevent overcharge of the MnO{sub 2} and decrease the imbalance of the charge/discharge states of the positive and negative electrodes, raise the working voltage of the MH/MnO{sub 2} cell, and prevent the formation of Mn{sub 3}O{sub 4}, thereby improving the rechargeability of the MnO{sub 2} electrode. The discharge mechanism is also discussed.

Xia, X.; Guo, Z. [Xinjiang Univ., Urumqi, Xinjiang (China). Dept. of Chemistry

1997-08-01T23:59:59.000Z

233

Molecular beam epitaxy growth of exchange-biased PtMn/NiFe bilayers with a spontaneously ordered PtMn layer  

Science Conference Proceedings (OSTI)

We report the direct epitaxial growth of equiatomic ordered antiferromagnetic PtMn layers by molecular beam epitaxy. Such layers are used in giant magnetoresistance spin valve sensors as the antiferromagnetic pinning layer. Structural characterization and phase identification confirmed the spontaneous formation of the chemically ordered face-centered-tetragonal (L1{sub 0}) phase of PtMn with about 87.4% ordering. Based on the antiferromagnetic PtMn layer, we prepared exchange-biased PtMn/NiFe bilayers with various PtMn thicknesses. The exchange anisotropy field of the bilayer with NiFe grown on PtMn stabilizes at about 50 Oe beyond a PtMn thickness of 15 nm. Although the exchange anisotropy field is small compared to that of the polycrystalline system, the antiferromagnetic domain structure is stable over repetitive external magnetic field cycling and no training effect is observed.

Choi, Y. S.; Petford-Long, A. K.; Ward, R. C. C.; Fan, R.; Goff, J. P.; Hase, T. P. A. [Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH (United Kingdom); Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU (United Kingdom); Department of Physics, University of Liverpool, Liverpool L69 7ZE (United Kingdom); Department of Physics, University of Durham, Durham DH1 3LE (United Kingdom)

2006-04-15T23:59:59.000Z

234

MN471004, Electrical Safety Manual Sponsor: Michael W. Hazen, 4000  

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

MN471004, Electrical Safety Manual MN471004, Electrical Safety Manual Sponsor: Michael W. Hazen, 4000 Revision Date: June 9, 2011 Replaces Document Dated: September 4, 2007 This document is no longer a CPR. This document implements the requirements of Corporate Procedure ESH100.2.ELC.1, Manage Electrical Hazards. IMPORTANT NOTICE: A printed copy of this document may not be the document currently in effect. The official version is the online version located on the Sandia Restricted Network (SRN). Subject Matter Experts: Marc Williams and David Paoletta MN471004, Issue S Revision Date: June 9, 2011; Replaces Document Dated: April 29, 2008 Review Date: August 29, 2007 Administrative Changes: February 5, 2008, June 28, 2010, July 28, 2010, May 26, 2011, June 9, 2011, November 28, 2011, February 1, 2012

235

Electrochemically Induced High Capacity Displacement Reaction of PEO/MoS2/Graphene Nanocomposites with Lithium  

SciTech Connect

MoS2/PEO/graphene composite is successfully prepared and the discharge mechanism of MoS2 as an anode material for Li-ion batteries has been investigated systematically in this work. The simultaneous formation of Li2S and Mo at deep discharge depth has been shown for the first time. The deposition of Mo metal with Li residing on the defects after the first discharge increases the intrinsic electronic conductivity of the electrode leading to a superior cycling stability for over 185 cycles. After the first discharge the amorphous Mo matrix allows a large amount of Li+ ions to repeatedly deposit and being oxidized during cycling while the transition between Li2S and S contribute to the capacity above 2.0 V. The interactions between as-formed Mo and S prevents the dissolution of the intermediate polysulfide thus providing clues to immobilize the soluble species in a Li-S battery. Excellent rate performances are achieved in this MoS2/PEO/graphene composite indicating a fast diffusion path of Li+ ions existing not only in the bulk material but also in the interface between the electrode and the electrolyte.

Xiao, Jie; Wang, Xaojian; Yang, Xiao-Qing; Xun, Shidi; Liu, Gao; Koech, Phillip K.; Liu, Jun; Lemmon, John P.

2011-08-09T23:59:59.000Z

236

Systematics of magnetic dipole strength in the stable even-mass Mo isotopes  

SciTech Connect

The nuclides {sup 92}Mo, {sup 98}Mo, and {sup 100}Mo have been studied in photon-scattering experiments by using bremsstrahlung produced at an electron energy of 6 MeV at the ELBE accelerator of the Forschungszentrum Rossendorf and at electron energies from 3.2 to 3.8 MeV at the Dynamitron accelerator at the University of Stuttgart. Six dipole transitions in {sup 98}Mo and 19 in {sup 100}Mo were observed for the first time in the energy range from 2 to 4 MeV. The experimental results are compared with predictions of the shell model and with predictions of the quasiparticle random-phase approximation (QRPA) in a deformed basis. The latter show significant contributions of isovector-orbital and isovector-spin vibrations. The change of the magnetic dipole strength in the isotopic chain of the even-mass isotopes from {sup 92}Mo to {sup 100}Mo is discussed. The calculations within the QRPA are extrapolated to the particle-separation energies to estimate the possible influence of M1 strength on the stability of the nuclides against photodissociation in cosmic scenarios.

Rusev, G. [Institut fuer Kern- und Hadronenphysik, Forschungszentrum Rossendorf, D-01314 Dresden (Germany); Institute for Nuclear Research and Nuclear Energy, BAS, BG-1784 Sofia (Bulgaria); Schwengner, R.; Doenau, F.; Erhard, M.; Grosse, E.; Junghans, A.R.; Kaeubler, L.; Kosev, K.; Mallion, S.; Schilling, K.D.; Wagner, A. [Institut fuer Kern- und Hadronenphysik, Forschungszentrum Rossendorf, D-01314 Dresden (Germany); Frauendorf, S. [Institut fuer Kern- und Hadronenphysik, Forschungszentrum Rossendorf, D-01314 Dresden (Germany); Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States); Kostov, L.K. [Institute for Nuclear Research and Nuclear Energy, BAS, BG-1784 Sofia (Bulgaria); Garrel, H. von; Kneissl, U.; Kohstall, C.; Kreutz, M.; Pitz, H.H.; Scheck, M.; Stedile, F. [Institut fuer Strahlenphysik, Universitaet Stuttgart, D-70569 Stuttgart (Germany)] (and others)

2006-04-15T23:59:59.000Z

237

Surface Structures of Cubo-octahedral Pt-Mo Catalyst Nanoparticles from Monte Carlo Simulations  

DOE Green Energy (OSTI)

The surface structures of cubo-octahedral Pt-Mo nanoparticles have been investigated using the Monte Carlo method and modified embedded atom method potentials that we developed for Pt-Mo alloys. The cubo-octahedral Pt-Mo nanoparticles are constructed with disordered fcc configurations, with sizes from 2.5 to 5.0 nm, and with Pt concentrations from 60 to 90 at. percent. The equilibrium Pt-Mo nanoparticle configurations were generated through Monte Carlo simulations allowing both atomic displacements and element exchanges at 600 K. We predict that the Pt atoms weakly segregate to the surfaces of such nanoparticles. The Pt concentrations in the surface are calculated to be 5 to 14 at. percent higher than the Pt concentrations of the nanoparticles. Moreover, the Pt atoms preferentially segregate to the facet sites of the surface, while the Pt and Mo atoms tend to alternate along the edges and vertices of these nanoparticles. We found that decreasing the size or increasing the Pt concentration leads to higher Pt concentrations but fewer Pt-Mo pairs in the Pt-Mo nanoparticle surfaces.

Wang, Guofeng; Van Hove, M.A.; Ross, P.N.; Baskes, M.I.

2005-03-31T23:59:59.000Z

238

Magnetic properties of a metal-organic antiferromagnet Mn,,hfipbb...py,,H2O...0.5  

E-Print Network (OSTI)

crystallographically independent Mn atoms Mn1 and Mn2 exist in this structure, and an alternate connection ­MnMnMn are discovered. Here we report the synthesis, structure, and magnetic properties of a metal-organic coordination 0.195, 0.5 mmol , py 2 ml , and H2O 5 ml was sealed in a Teflon-lined acid digestion bomb and heated

Li, Jing

239

Rechargeable Zn-MnO sub 2 alkaline batteries  

SciTech Connect

In this paper progress in the development of rechargeable alkaline zinc-manganese dioxide cells is described. The advantages and limitations of the system are evaluated. Laboratory tests run on commercial primary alkaline cells as well as model simulations of a bipolar MnO{sub 2} electrode show that the rechargeable alkaline battery may be able to compete with lead-acid, nickel-cadmium, and secondary lithium cells for low- to moderate-rate applications. However, because of this poor performance at high rates and low temperatures, the alkaline MnO{sub 2} battery is not suitable for present automotive starting applications.

Wruck, W.J.; Reichman, B.; Bullock, K.R.; Kao, W.H. (Corporate Applied Research, Johnson Controls, Inc., Milwaukee, WI (US))

1991-12-01T23:59:59.000Z

240

Thermal Instability of Olivine-type LiMnPO4 Cathodes  

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

Thermal Instability of Olivine-type LiMnPO4 Cathodes Title Thermal Instability of Olivine-type LiMnPO4 Cathodes Publication Type Journal Article Year of Publication 2010 Authors...

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


241

Electrodeposited Al-Mn Alloys with Microcrystalline, Nanocrystalline, Amorphous and Nano-quasicrystalline Structures  

E-Print Network (OSTI)

AlMn alloys with Mn content ranging from 0 to 15.8 at.% are prepared by electrodeposition from an ionic liquid at room temperature, and exhibit a remarkably broad range of structures. The alloys are characterized through ...

Ruan, Shiyun

242

Disentangling the Mn moments on different sublattices in the half-metallic ferrimagnet Mn3?xCoxGa  

SciTech Connect

Ferrimagnetic Mn{sub 3-x}Co{sub x}Ga compounds have been investigated by magnetic circular dichroism in x-ray absorption (XMCD). Compounds with x > 0.5 crystallize in the CuHg{sub 2}Ti structure. A tetragonal distortion of the cubic structure occurs for x {le} 0.5. For the cubic phase, magnetometry reveals a linearly increasing magnetization of 2x Bohr magnetons per formula unit obeying the generalized Slater-Pauling rule. XMCD confirms the ferrimagnetic character with Mn atoms occupying two different sublattices with antiparallel spin orientation and different degrees of spin localization and identifies the region 0.6 < x {le} 0.8 as most promising for a high spin polarization at the Fermi level. Individual Mn moments on inequivalent sites are compared to theoretical predictions.

Klaer, P.; Jenkins, C.A.; Alijani, V.; Winterlik, J.; Balke, B.; Felser, C.; Elmers, H.J.

2011-05-03T23:59:59.000Z

243

Measurement of the nu(mu)-CCQE cross-section in the SciBooNE experiment  

SciTech Connect

SciBooNE is a neutrino and anti-neutrino cross-section experiment at Fermilab, USA. The SciBooNE experiment is summarized and two independent CCQE analyses are described. For one of the analyses, an absolute {nu}{sub {mu}}-CCQE cross section in the neutrino energy region (0.6-1.6) GeV is shown and the technique developed for such a purpose is also explained. The total cross section measured over this energy range agrees well with expectations, based on the NEUT event generator and using a value of 1.21 GeV for the CCQE axial mass.

Alcaraz-Aunion, Jose Luis; /Barcelona, IFAE; Walding, Joseph; /Imperial Coll., London

2009-09-01T23:59:59.000Z

244

New Results from MiniBooNE Charged-Current Quasi-Elastic Anti-Neutrino Data  

SciTech Connect

MiniBooNE anti-neutrino charged-current quasi-elastic (CCQE) data is compared to model predictions. The main background of neutrino-induced events is examined first, where three independent techniques are employed. Results indicate the neutrino flux is consistent with a uniform reduction of {approx}20% relative to the largely uncertain prediction. After background subtraction, the Q{sup 2} shape of {bar v}{sub {mu}} CCQE events is consistent with the model parameter MA = 1.35 GeV determined from MiniBooNE v{sub {mu}} CCQE data, while the normalization is {approx} 20% high compared to the same prediction.

Grange, Joseph

2011-07-01T23:59:59.000Z

245

Reactor physics calculations for {sup 99}Mo production at the Annular Core Research Reactor  

SciTech Connect

The isotope {sup 99}Mo would be produced at Sandia using ACRR and the collocated Hot Cell Facility. {sup 99}Mo would be produced by irradiating targets coated with {sup 235}U in the form of highly enriched U{sub 3}O{sub 8}; after 7 days, the target would be removed and the isotope extracted using the Cintichem process. The Monte Carlo neutronics computer code MCNP was used to determine the optimum configuration for production, using various fractions of the US demand. Although ACRR operates at a low power level, the US demand for {sup 99}Mo can be easily met using a reasonable number of targets.

Parma, E.J.

1995-07-01T23:59:59.000Z

246

Assessment of the Diffusive Gradients in Thin-films (DGT) technique to assess the plant availability of Mn in soils.  

E-Print Network (OSTI)

predicts copper availability to plants. EnvironmentalAttempts to assess Mn availability have been impeded due towill influence the Mn availability. Often flooding of soils

Mundus, Simon; Husted, Sren; Lombi, Enzo

2009-01-01T23:59:59.000Z

247

Control of magnetic properties of MnBi and MnBiCu thin films by Kr{sup +} ion irradiation  

SciTech Connect

Mn{sub 52}Bi{sub 48} (15 nm) and Mn{sub 54}Bi{sub 24}Cu{sub 21} (15 nm) thin films were prepared by the magnetron sputtering and vacuum annealing at 350 deg. C, and the variations of their structures and magnetic properties with 30 keV Kr{sup +} ion irradiation were studied. The MnBi and MnBiCu films exhibited saturation magnetizations M{sub s} of 180 emu/cc and 210 emu/cc, the coercivities H{sub c} of 10 kOe and 3.4 kOe, respectively. The M{sub s} and H{sub c} of the MnBi abruptly vanished by the irradiation of ion dose at 3 x 10{sup 14} ions/cm{sup 2}, while those of the MnBiCu film gradually decreased with increasing the ion dose and became zero at 5 x 10{sup 13} ions/cm{sup 2}. The different trend on the ion irradiation between MnBi and MnBiCu films is understood by the surface structure of the film, i.e., the MnBi has convex islands on its surface, which protect the underneath NiAs-type MnBi from the irradiation, while the MnBiCu has rather flat surface, and its crystal structure was uniformly modified by the irradiation. From the surface flatness and the uniformity of the MnBiCu film, as well as the low annealing temperature of 350 deg. C, it was concluded that the MnBiCu film is one of the attractive materials for high-density ion irradiation bit patterned media.

Xu Qianqian; Kanbara, Ryutarou; Kato, Takeshi; Iwata, Satoshi [Department of Quantum Engineering, Nagoya University Furo-cho, Chikusa-ku, Nagoya, 464-8603 (Japan); Tsunashima, Shigeru [Department of Research, Nagoya Industrial Science Research Institute, 1-13 Yotsuya-dori, Chikusa-ku, Nagoya 460-0819 (Japan)

2012-04-01T23:59:59.000Z

248

Markus Popa, DOE (OCRWM) Bill Sherman, NE HLRW Task Force Robert Holden, NCAI  

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

Minutes Monday, November 3rd 2:00-3:00 p.m. (EST) Minutes Monday, November 3rd 2:00-3:00 p.m. (EST) Participants included: Markus Popa, DOE (OCRWM) Bill Sherman, NE HLRW Task Force Robert Holden, NCAI Mike Butler, UETC Bob Fronczak, AAR Kevin Blackwell, FRA Mike Butler (UETC) greeted participants and informed the group of previous notification by Robert Light (Mescalero Apache Tribe), Robert Centracco (FRA), and Mike Calhoun (FRA) that they would be unable to join the call. Mr. Butler began the call with a brief update on the status of Matrix 1, now entitled "Summary of Rail and Highway Regulations and their Applicability to States, Tribes, Shippers, and Carriers." He informed the group that he had completed an initial draft of the matrix, but that he was making substantial revisions to it and therefore he had not distributed it to the entire group for

249

Laser Rock Drilling on the History Channel - The NE Multimedia Collection  

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

Departments > System Technologies & Diagnostics > Videos Departments > System Technologies & Diagnostics > Videos Laser Oil & Gas Well Drilling: Laser Rock Drilling on the History Channel Argonne's Laser Applications Lab and researcher Claude Reed (NE) appeared in the History Channel program "Modern Marvels: Drilling" (May 10, 2006). "Modern Marvels" relates the ingenuity, invention and imagination behind everyday items, technological breakthroughs and man-made wonders. :: Please wait until video loads completely :: Argonne Experts Dr. Claude B. Reed is one of the Experts featured in the Argonne Experts Guide. The video is in mp4 format. Closed Captioning Transcript Live Closed captioning of the video is not available; however -as an alternative- we provide a transcript of the audio portion of this video as a separate web page.

250

First direct measurement of resonance strengths in {sup 17}O({alpha},{gamma}){sup 21}Ne  

SciTech Connect

The reaction {sup 17}O({alpha},{gamma}){sup 21}Ne has been measured by in-beam {gamma} spectroscopy for the first time in the energy range E{sub {alpha}=}750-1650 keV using highly enriched anodized Ta{sub 2}({sup 17}O){sub 5} targets. Resonances were found at E{sub {alpha}=} 1002, 1386, and 1619 keV. Their strengths and primary {gamma}-ray branchings are given. The new results exclude the low reaction rate of Descouvemont and support the rate of Caughlan and Fowler. Implications for the neutron poisoning efficiency of {sup 16}O in the weak s-process are discussed.

Best, A.; Goerres, J.; Couder, M.; Boer, R. de; Falahat, S.; Kontos, A.; LeBlanc, P. J.; Li, Q.; O'Brien, S.; Sonnabend, K.; Talwar, R.; Uberseder, E.; Wiescher, M. [Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)

2011-05-15T23:59:59.000Z

251

KM3NeT:a large underwater neutrino telescope in the Mediterranean Sea  

E-Print Network (OSTI)

High energy neutrinos produced in astrophysical processes will allow for a new way of studying the universe. In order to detect the expected flux of high energy neutrinos from specific astrophysical sources, neutrino telescopes of a scale of a km^3 of water will be needed. A Northern Hemisphere detector is being proposed to be sited in a deep area of the Mediterranean Sea. This detector will provide complimentary sky coverage to the IceCube detector being built at the South Pole. The three neutrino telescope projects in the Mediterranean (ANTARES, NEMO and NESTOR) are partners in an effort to design, and build such a km^3 size neutrino telescope, the KM3NeT. The EU is funding a 3-year Design Study; the status of the Design Study is presented and some technical issues are discussed.

P. A. Rapidis; for the KM3NeT consortium

2008-03-17T23:59:59.000Z

252

K-SHELL PHOTOIONIZATION AND PHOTOABSORPTION OF Ne, Mg, Si, S, Ar, AND Ca  

Science Conference Proceedings (OSTI)

We present extensive computations of photoabsorption and photoionization cross sections across the K-edge of Ne, Mg, Si, S, Ar, and Ca ions with less than 11 electrons. The calculations are performed using the Breit-Pauli R-matrix method and include the effects of radiative and Auger damping by means of an optical potential. The wave functions are constructed from single-electron orbital bases obtained using a Thomas-Fermi-Dirac statistical model potential. Configuration interaction is considered among all fine-structure levels within the n = 2 complex. The damping processes affect the resonances converging to the K thresholds causing them to display symmetric profiles of constant width that smear the otherwise sharp edge at the photoionization thresholds.

Witthoeft, M. C.; Kallman, T. R. [NASA Goddard Space Flight Center, Code 662, Greenbelt, MD 20771 (United States); Bautista, M. A. [Department of Physics, Virginia Polytechnic and State University, Blacksburg, VA 24061 (United States); Mendoza, C. [Centro de Fisica, Instituto Venezolano de Investigaciones CientIficas (IVIC), Caracas 1020A (Venezuela, Bolivarian Republic of); Palmeri, P.; Quinet, P. [Astrophysique et Spectroscopie, Universite de Mons-Hainaut, B-7000 Mons (Belgium)], E-mail: bautista@vt.edu

2009-05-15T23:59:59.000Z

253

NE-24 R&D Decontamination Projects Under the Formerly Utilized Sites Remedial  

Office of Legacy Management (LM)

" _ ,' ,:.' : " _ ,' ,:.' : NE-24 R&D Decontamination Projects Under the Formerly Utilized Sites Remedial Action Program (FUSRAP) '. * * ,~~'.'J.' L.aGrone, Manager Oak Ridge Operations O fffce As a result of the House-Senate Conference Report and the Energy and W a ter Appropriations Act for FY 1984, and based on the data in the attached reports indicating radioactive contamination In excess of acceptable guidelines, the sites listed In the attachment and their respectfve vicinity properties (contaminated with radioactive materials from these sites) are being designated as decontamination research and development projects under the FUSRAP. Each site and the associated vicinity properties should be treated as a separate project. . . -_ The objectjve of each project is to decontaminate the vicinity properties

254

NE-23 Elimination of the Chupadera Mesa and Los Alamos County Industrial Waste  

Office of Legacy Management (LM)

AM? 2 2 1986 AM? 2 2 1986 NE-23 Elimination of the Chupadera Mesa and Los Alamos County Industrial Waste Line Sites from Further Consideration for FUSRAP Inclusion Carlos E. Garcia, Director Environmental Safety and Health Division Albuquerque Operations Office The enclosed material is being provided to you to document the final actions taken under the Department's Formerly Utilized Sites Remedial Action Program (FUSRAP) for the Chupadera Mesa area and the Los Alamos County Industrial Waste Lines, New Mexico. Copies of designation/ elimination reviews for each of the sites are enclosed for your records. We have determined that neither site warrants inclusion in the remedial action program. Primary sources of data for this determination were two survey reports prepared through your Division, LA-10256-MS, "Radiological

255

Distribution of water extractable heavy metals (Cd, Co, Mn and Mo) in the topsoil of Osijek-Baranja County (Eastern Croatia)  

E-Print Network (OSTI)

Agronomy no. 9, Madison, Wisconsin, USA: p 199-224 Nelson,Agronomy no. 9, Madison, Wisconsin, USA: p 539- APPENDIX 1.

Ivezic, Vladimir; Alms, sgeir R.; Loncaric, Zdenko; Singh, Bal Ram

2009-01-01T23:59:59.000Z

256

Thermoelectric figure of merit of LSCoO-Mn perovskites  

Science Conference Proceedings (OSTI)

Oxide ceramics with nominal composition of La"0"."8Sr"0"."2Co"1"-"xMn"xO"3(0= Keywords: 72.20.Pa, 84.60.Bk, 84.60.Rb, 85.80.Fi, LSCoO compounds, Thermoelectric figure of merit, Thermoelectric materials

J. E. Rodrguez; D. Cadavid; L. C. Moreno

2008-11-01T23:59:59.000Z

257

Forming 6061 Al HIP-Clad DU10Mo Monolithic Fuel Plates  

Science Conference Proceedings (OSTI)

Small scale trials with multi-layer 6061 Al HIP-clad DU10Mo (depleted uranium), co-rolled with Zr, have been performed. Important results include springback...

258

Solution-reactor-produced Mo-99 using activated carbon to remore I-131  

SciTech Connect

The production of {sup 99}Mo in a solution reactor was explored. Activated charcoal was used to filter the {sup 131}I contaminant from an irradiated fuel solution. Gamma spectroscopy confirmed that the activated carbon trapped a significant amount of {sup 131}I, as well as notable amounts of {sup 133}Xe, {sup 105}Rb, and {sup 140}Ba; the carbon trapped a diminutive amount of {sup 99}Mo. The results promote the idea of solution-reactor-produced {sup 99}Mo. Solution reactors are favorable both energetically and environmentally. A solution reactor could provide enough {sup 99}Mo/{sup 99m}Te to support both the current and future radiopharmaceutical needs of the U.S.

Kitten, S.; Cappiello, C.

1998-06-01T23:59:59.000Z

259

NTT DoCoMo's competition strategy (before and) after the introduction of the flat rate  

E-Print Network (OSTI)

NTT DoCoMo, which was spun off from NTT in 1992, grew rapidly by increasing the number of subscribers and successfully implementing a new data communication, i-mode. However, when a competitor introduced a flat rate for ...

Yajima, Masaaki

2008-01-01T23:59:59.000Z

260

Production of Mixed Alcohols from Bio-syngas over Mo-based Catalyst  

Science Conference Proceedings (OSTI)

A series of Mo-based catalysts prepared by sol-gel method using citric acid as complexant were successfully applied in the high efficient production of mixed alcohols from bio-syngas

Song-bai Qiu; Wei-wei Huang; Yong Xu; Lu Liu; Quan-xin Li

2011-01-01T23:59:59.000Z

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


261

The Thermodynamics of Titanium Formation in 95CrMo Steel  

Science Conference Proceedings (OSTI)

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

262

Electrochemical properties of sputter-deposited MoO{sub 3} films in lithium microbatteries  

Science Conference Proceedings (OSTI)

Molybdenum oxide (MoO{sub 3}) films were prepared by magnetron sputtering using an Mo target. The films were sputtered in the reactive atmosphere of an argon-oxygen gas mixture under various substrate temperatures, T{sub s}, and oxygen partial pressures, p(O{sub 2}). The effects of the growth conditions on the microstructure were examined using reflection high-energy electron diffraction and x-ray photoelectron spectroscopy. The analyses indicate that stoichiometric and polycrystalline MoO{sub 3} films were obtained at T{sub s} = 445 Degree-Sign C and p(O{sub 2}) = 61%. The applicability of the sputtered MoO{sub 3} films for lithium microbattery application has been demonstrated. The discharge-charge profiles, the kinetics of lithium intercalation process in the film, and the cycling behavior have been investigated in detail to understand the effect of microstructure on the electrochemical performance.

Ramana, C. V.; Atuchin, V. V.; Groult, H.; Julien, C. M. [Department of Mechanical Engineering, University of Texas at El Paso, El Paso, Texas 79968 (United States); Institute of Semiconductor Physics, SB RAS, Novosibirsk, 630090 (Russian Federation); Physicochimie des Electrolytes, Colloiedes et Systemes Analytiques (PECSA), Universite Pierre et Marie Curie-Paris 6, UMR 7195, 4 place Jussieu, 75005 Paris (France)

2012-07-15T23:59:59.000Z

263

Clarification of enhanced ferromagnetism in Be-codoped InMnP fabricated using Mn/InP:Be bilayers grown by molecular beam epitaxy  

Science Conference Proceedings (OSTI)

The p-type InMnP:Be epilayers were prepared by the sequential growth of Mn/InP:Be bilayers using molecular-beam-epitaxy and the subsequent in-situ annealing at 200-300 deg. C. In triple-axis x-ray diffraction patterns, the samples revealed a shoulder peak indicative of intrinsic InMnP. The ferromagnetic transition in InMnP:Be was observed to occur at the elevated temperature of {approx}140 K, and the ferromagnetic spin-domains clearly appeared in magnetic force microscopy images. The improved ferromagnetic properties are attributed to the increased p-d hybridation due to high p-type conductivity of InMnP:Be (p {approx} 10{sup 20 }cm{sup -3}). The results suggest that enhanced ferromagnetism can be effectively obtained from Be-codoped InMnP.

Shon, Yoon; Lee, Sejoon; Taek Yoon, Im; Jeon, H. C.; Lee, D. J.; Kang, T. W. [Quantum-functional Semiconductor Research Center, Dongguk University-Seoul, Seoul 100-715 (Korea, Republic of); Song, J. D. [Center for Spintronics Research, Korea Institute of Science and Technology, Seoul 136-791 (Korea, Republic of); Yoon, Chong S. [Department of Materials Science and Engineering, Hanyang University, Seoul 133-791 (Korea, Republic of); Kim, D. Y. [Department of Semiconductor Science, Dongguk University-Seoul, Seoul 100-715 (Korea, Republic of); Park, C. S. [School of Electrical Engineering, Korea University, Anam-dong, Seongbuk-gu, Seoul 136-713 (Korea, Republic of)

2011-11-07T23:59:59.000Z

264

U-EXTRACTION--IMPROVEMENTS IN ELIMINATION OF Mo BY USE OF FERRIC ION  

DOE Patents (OSTI)

An improved solvent extraction process is described whereby U may be extracted by a water immiscible organic solvent from an aqueous solution of uranyl nitrate. It has been found that Mo in the presence of phosphate ions appears to form a complex with the phosphate which extracts along with the U. This extraction of Mo may be suppressed by providing ferric ion in the solution prior to the extraction step. The ferric ion is preferably provided in the form of ferric nitrate.

Clark, H.M.; Duffey, D.

1958-06-10T23:59:59.000Z

265

BP Studentship* in the Department of Earth Sciences of the University of Oxford Tectonic evolution of the Parnaiba cratonic basin, NE Brazil  

E-Print Network (OSTI)

of the Parnaiba cratonic basin, NE Brazil Supervisors: Prof. A. B. Watts and Dr. M. Daly (BP) * Subject to funding structure and petroleum play. The focus will be on the Parnaiba basin in NE Brazil, one of the world in Brazil and the UK, will involve the acquisition of seismic reflection and refraction profile data along

266

Using MiniBooNE neutral current elastic cross section results to constrain 3+1 sterile neutrino models  

E-Print Network (OSTI)

The MiniBooNE Neutral Current Elastic (NCEL) cross section results are used to extract limits in the $\\Delta m^{2}-\\sin^{2}\\vartheta_{\\mu s}$ plane for a 3+1 sterile neutrino model with a mass splitting $0.1 \\leq \\Delta m^{2} \\leq 10.0$ eV$^{2}$. GENIE is used with a cross section model close to the one employed by MiniBooNE to make event rate predictions using simulations on the MiniBooNE target material CH$_{2}$. The axial mass is a free parameter in all fits. Sterile modifications to the flux and changes to the cross section in the simulation relate the two and allow limits to be set on sterile neutrino mixing using cross section results. The large axial mass problem makes it necessary for experiments to perform their own axial mass fits, but a prior fit to the same dataset could mask a sterile oscillation signal. Results are given with and without a penalty term on the axial mass from a prior fit. We find that a simultaneous fit to the axial mass and the sterile neutrino parameters favours very high axial mass values. The general problems that the current uncertainty on charged-current quasi-elastic (CCQE) cross sections at MiniBooNE energies pose for sterile neutrino measurements are discussed.

Callum Wilkinson; Susan Cartwright; Lee Thompson

2013-09-04T23:59:59.000Z

267

Measurements of nuclear $?$-ray line emission in interactions of protons and $?$ particles with N, O, Ne and Si  

E-Print Network (OSTI)

$\\gamma$-ray production cross sections have been measured in proton irradiations of N, Ne and Si and $\\alpha$-particle irradiations of N and Ne. In the same experiment we extracted also line shapes for strong $\\gamma$-ray lines of $^{16}$O produced in proton and $\\alpha$-particle irradiations of O. For the measurements gas targets were used for N, O and Ne and a thick foil was used for Si. All targets were of natural isotopic composition. Beams in the energy range up to 26 MeV for protons and 39 MeV for $\\alpha$-particles have been delivered by the IPN-Orsay tandem accelerator. The $\\gamma$ rays have been detected with four HP-Ge detectors in the angular range 30$^{\\circ}$ to 135$^{\\circ}$. We extracted 36 cross section excitation functions for proton reactions and 14 for $\\alpha$-particle reactions. For the majority of the excitation functions no other data exist to our knowledge. Where comparison with existing data was possible usually a very good agreement was found. It is shown that these data are very interesting for constraining nuclear reaction models. In particular the agreement of cross section calculations in the nuclear reaction code TALYS with the measured data could be improved by adjusting the coupling schemes of collective levels in the target nuclei $^{14}$N, $^{20,22}$Ne and $^{28}$Si. The importance of these results for the modeling of nuclear $\\gamma$-ray line emission in astrophysical sites is discussed.

H. Benhabiles-Mezhoud; J. Kiener; J. -P. Thibaud; V. Tatischeff; I. Deloncle; A. Coc; J. Duprat; C. Hamadache; A. Lefebvre-Schuhl; J. -C. Dalouzy; F. De Grancey; F. De Oliveira; F. Dayras; N. De Srville; M. -G. Pellegriti; L. Lamia; S. Ouichaoui

2010-11-11T23:59:59.000Z

268

First Direct Measurement of the 17F(p,gamma)18Ne Cross Section  

SciTech Connect

The rate of the 17F(p,gamma)18Ne reaction is of significant importance in astrophysical events like novae and x-ray bursts. A previous 17F(p,p)17F measurement identified the 3+ state in 18Ne predicted to dominate the rate above 0.2 GK at a center of mass energy of 599.8 keV, but the resonance strength for proton capture was unknown. We have directly measured the 17F(p,gamma)18Ne reaction with the Daresbury Recoil Separator, using a mixed beam of radioactive 17F and stable 17O from the HRIBF at ORNL. The resonance strength for the 599.8 keV resonance in 18Ne was found to be = 33 14(stat) 17(sys) meV, corresponding to a width of = 56 24(stat) 30(sys) meV. Additionally, an upper limit on the direct capture S factor of S(E) < 65 keV b was determined at an intermediate energy of 800 keV.

Chipps, K. [Colorado School of Mines, Golden; Bardayan, Daniel W [ORNL; Blackmon, Jeff C [ORNL; Chae, K. Y. [University of Tennessee, Knoxville (UTK); Greife, U. [Colorado School of Mines, Golden; Hatarik, Robert [Rutgers University; Kozub, R. L. [Tennessee Technological University; Matei, Catalin [Oak Ridge Associated Universities (ORAU); Moazen, Brian [University of Tennessee, Knoxville (UTK); Nesaraja, Caroline D [ORNL; Pain, Steven D [ORNL; Peters, W. A. [Rutgers University; Pittman, S. T. [University of Tennessee, Knoxville (UTK); ShrinerJr., J. F. [Tennessee Technological University; Smith, Michael Scott [ORNL

2008-01-01T23:59:59.000Z

269

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

SciTech Connect

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.

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

270

Solution-reactor-produced-{sup 99}Mo using activated carbon to remove {sup 131}I  

SciTech Connect

This research explores the idea of producing {sup 99}Mo in a solution reactor. The Solution High Energy Burst Assembly (SHEBA), located at the Los Alamos Critical Assembly Facility, was used to facilitate this study. The goal of this study was to build on work previously completed and to investigate a possible mode of radioactive contaminant removal prior to a {sup 99}Mo extraction process. Prior experiments, performed using SHEBA and a single-step sorption process, showed a significant amount of {sup 131}I present along with the {sup 99}Mo on the alumina that was used to isolate the {sup 99}Mo. A high concentration of {sup 131}I and/or other contaminants present in a sample prohibits the Food and Drug Administration from approving an extraction of that nature for radiopharmaceutical use. However, if it were possible to remove the {sup 131}I and other contaminants prior to a {sup 99}Mo extraction, a simple column extraction process might be feasible. Activated charcoal was used to try to filter the {sup 131}I contaminant from an irradiated fuel solution. Gamma spectroscopy confirmed that the activated carbon trapped a significant amount of the {sup 131}I, as well as notable amounts of {sup 133}Xe, {sup 105}Rb, and {sup 140}Ba. Most importantly, the carbon traps a diminutive amount of {sup 99}Mo.

Kitten, S.; Cappiello, C. [Los Alamos National Lab., NM (United States)

1998-09-01T23:59:59.000Z

271

The Mn effect on magnetic structure of FeMn-B amorphous metals , D.M.C. Nicholson2  

E-Print Network (OSTI)

usually less than 1mm in thickness, because fast cooling rate is (~ 106 °K/sec) required for retaining] for a historical summary on the discovery of bulk amorphous metals.) They have been proposed for a range in transformers and electrical motors. Lately, high Mn content, Fe-based bulk amorphous metals have been

Widom, Michael

272

Substrate recovery of Mo-Si multilayer coated optics  

Science Conference Proceedings (OSTI)

Imaging optics in a soft x-ray projection lithography (SXPL) system must meet stringent requirements to achieve high throughput and diffraction limited performance. Errors in the surface figure must be kept to less than {approximately}1 nm and the rms surface roughness must be less than 0.1 nm. The ML coatings must provide high reflectivity (> 60%) at wavelengths in the vicinity of 13 nm. The reflectivity bandpasses of the optics must be aligned within 0.05 nm. Each coating must be uniform across the surface of the optic to within 0.5%. These specifications challenge the limits of the current capabilities in optics fabrication and ML deposition. Consequently a set of qualified SXPL imaging optics is expected to be expensive, costing in the range of 100--250 k$. If the lifetime of the imaging optics is short, the replacement cost could significantly impact the economic competitiveness of the technology. The most likely failure modes for the imaging optics are mechanisms that degrade the ML coatings, but which leave the substrates intact. A potentially low cost solution for salvaging the imaging optics could be to strip the damaged ML coating to recover the substrate and then deposit a new coating. In this paper the authors report on the use of reactive ion etching (RIE) to remove Mo-Si ML coatings from precision optical substrates. The goal of this work was to characterize the etching process both in the ML film and at the substrate, and to determine the effects of the etching on the surface figure and finish of the substrate.

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

1993-06-01T23:59:59.000Z

273

Plutonium Oxidation and Subsequent Reduction by Mn (IV) Minerals  

Science Conference Proceedings (OSTI)

Plutonium sorbed to rock tuff was preferentially associated with manganese oxides. On tuff and synthetic pyrolusite (Mn{sup IV}O{sub 2}), Pu(IV) or Pu(V) was initially oxidized, but over time Pu(IV) became the predominant oxidation state of sorbed Pu. Reduction of Pu(V/VI), even on non-oxidizing surfaces, is proposed to result from a lower Gibbs free energy of the hydrolyzed Pu(IV) surface species versus that of the Pu(V) or Pu(VI) surface species. This work suggests that despite initial oxidation of sorbed Pu by oxidizing surfaces to more soluble forms, the less mobile form of Pu, Pu(IV), will dominate Pu solid phase speciation during long term geologic storage. The safe design of a radioactive waste or spent nuclear fuel geologic repository requires a risk assessment of radionuclides that may potentially be released into the surrounding environment. Geochemical knowledge of the radionuclide and the surrounding environment is required for predicting subsurface fate and transport. Although difficult even in simple systems, this task grows increasingly complicated for constituents, like Pu, that exhibit complex environmental chemistries. The environmental behavior of Pu can be influenced by complexation, precipitation, adsorption, colloid formation, and oxidation/reduction (redox) reactions (1-3). To predict the environmental mobility of Pu, the most important of these factors is Pu oxidation state. This is because Pu(IV) is generally 2 to 3 orders of magnitude less mobile than Pu(V) in most environments (4). Further complicating matters, Pu commonly exists simultaneously in several oxidation states (5, 6). Choppin (7) reported Pu may exist as Pu(IV), Pu(V), or Pu(VI) oxic natural groundwaters. It is generally accepted that plutonium associated with suspended particulate matter is predominantly Pu(IV) (8-10), whereas Pu in the aqueous phase is predominantly Pu(V) (2, 11-13). The influence of the character of Mn-containing minerals expected to be found in subsurface repository environments on Pu oxidation state distributions has been the subject of much recent research. Kenney-Kennicutt and Morse (14), Duff et al. (15), and Morgenstern and Choppin (16) observed oxidation of Pu facilitated by Mn(IV)-bearing minerals. Conversely, Shaughnessy et al. (17) used X-ray Absorption near-edge spectroscopy (XANES) to show reduction of Pu(VI) by hausmannite (Mn{sup II}Mn{sub 2}{sup III}O{sub 4}) and manganite ({gamma}-Mn{sup III}OOH) and Kersting et al., (18) observed reduction of Pu(VI) by pyrolusite (Mn{sup IV}O{sub 2}). In this paper, we attempt to reconcile the apparently conflicting datasets by showing that Mn-bearing minerals can indeed oxidize Pu, however, if the oxidized species remains on the solid phase, the oxidation step competes with the formation of Pu(IV) that becomes the predominant solid phase Pu species with time. The experimental approach we took was to conduct longer term (approximately two years later) oxidation state analyses on the Pu sorbed to Yucca Mountain tuff (initial analysis reported by Duff et al., (15)) and measure the time-dependant changes in the oxidation state distribution of Pu in the presence of the Mn mineral pyrolusite.

KAPLAN, DANIEL

2005-09-13T23:59:59.000Z

274

G3: Tribological Properties of MoS2-Ti Coated Steel in Vacuum and ...  

Science Conference Proceedings (OSTI)

B7: Synthesis and Electrical Properties of K2NiF4-Type (Ca2-xLnx)MnO4 (Ln=Nd and Sm) B8: Monitoring Oxygen Diffusion in Gd-Doped Ceria by Null...

275

Demonstration Assessment of LED Roadway Lighting: NE Cully Boulevard Portland, OR  

Science Conference Proceedings (OSTI)

A new roadway lighting demonstration project was initiated in late 2010, which was planned in conjunction with other upgrades to NE Cully Boulevard, a residential collector road in the northeast area of Portland, OR. With the NE Cully Boulevard project, the Portland Bureau of Transportation hoped to demonstrate different light source technologies and different luminaires side-by-side. This report documents the initial performance of six different newly installed luminaires, including three LED products, one induction product, one ceramic metal halide product, and one high-pressure sodium (HPS) product that represented the baseline solution. It includes reported, calculated, and measured performance; evaluates the economic feasibility of each of the alternative luminaires; and documents user feedback collected from a group of local Illuminating Engineering Society (IES) members that toured the site. This report does not contain any long-term performance evaluations or laboratory measurements of luminaire performance. Although not all of the installed products performed equally, the alternative luminaires generally offered higher efficacy, more appropriate luminous intensity distributions, and favorable color quality when compared to the baseline HPS luminaire. However, some products did not provide sufficient illumination to all areasvehicular drive lanes, bicycle lanes, and sidewalksor would likely fail to meet design criteria over the life of the installation due to expected depreciation in lumen output. While the overall performance of the alternative luminaires was generally better than the baseline HPS luminaire, cost remains a significant barrier to widespread adoption. Based on the cost of the small quantity of luminaires purchased for this demonstration, the shortest calculated payback period for one of the alternative luminaire types was 17.3 years. The luminaire prices were notably higher than typical prices for currently available luminaires purchased in larger quantities. At prices that are more typical, the payback would be less than 10 years. In addition to the demonstration luminaires, a networked control system was installed for additional evaluation and demonstration purposes. The capability of control system to measure luminaire input power was explored in this study. A more exhaustive demonstration and evaluation of the control system will be the subject of future GATEWAY report(s).

Royer, Michael P.; Poplawski, Michael E.; Tuenge, Jason R.

2012-06-29T23:59:59.000Z

276

MCNPX-CINDER'90 Simulation of Photonuclear Mo-99 Production Experiments  

SciTech Connect

The MCNPX and CINDER'90 codes were used to support design of experiments investigating Mo-99 production with a 20-MeV electron beam. Bremsstrahlung photons produced by the electron beam interacting with the target drive the desired Mo-100({gamma},n)Mo-99 reaction, as well as many undesired reactions important to accurate prediction of radiation hazards. MCNPX is a radiation transport code and CINDER'90 is a transmutation code. They are routinely used together for accelerator activation calculations. Low energy neutron fluxes and production rates for nonneutron and high energy neutron induced reactions computed using MCNPX are inputs to CINDER'90. CINDER'90 presently has only a neutron reaction cross section library up to 25 MeV and normally the other reaction rates come from MCNPX physics models. For this work MCNPX photon flux tallies modified by energy response functions prepared from evaluated photonuclear cross section data were used to tally the reaction rates for CINDER'90 input. The cross section evaluations do not provide isomer to ground state yield ratios so a spin based approximation was used. Post irradiation dose rates were calculated using MCNPX with CINDER'90 produced decay photon spectra. The sensitivity of radionuclide activities and dose rates to beam parameters including energy, position, and profile, as well as underlying isomer assumptions, was investigated. Three experimental production targets were irradiated, two natural Mo and one Mo-100 enriched. Natural Mo foils upstream of the targets were used to analyze beam position and profile by exposing Gafchromic film to the foils after each irradiation. Activation and dose rate calculations were rerun after the experiments using measured beam parameters for comparison with measured Mo-99 activities and dose rates.

Kelsey, Charles T. IV [Los Alamos National Laboratory; Chemerizov, Sergey D. [Argonne National Laboratory; Dale, Gregory E. [Los Alamos National Laboratory; Harvey, James T. [NorthStar Medical Radioisotopes; Tkac, Peter [Argonne National Laboratory; Vandegrift, George R III [Argonne National Laboratory

2011-01-01T23:59:59.000Z

277

Electrodeposited Mn-Co Alloy Coating For SOFC Interconnects  

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

Electrodeposited Electrodeposited Mn-Co Alloy Coating For SOFC Interconnects H. McCrabb * , T. Hall * , J. Wu # , H. Zhang # , X. Liu # , E.J. Taylor * * Faraday Technology Inc., 315 Huls Dr., Clayton, OH 45315, USA # West Virginia University, Dept. of Mechanical and Aerospace Eng.ESB, Morgantown, WV, 26506, USA Overall Objective Overall Objective Principal Investigator: Heather McCrabb, Company Name: Faraday Technology, Inc., Address: 315 Huls Drive, Clayton, OH 45315, Phone: 937-836-7749, E-mail: heathermccrabb@faradaytechnology.com, Company website: faradaytechnology.com Previous Work at WVU Results Develop an inexpensive manufacturing process for depositing (Mn,Co) 3 O 4 spinel coatings onto SOFC interconnects. Introduction The decrease in the SOFC operating temperatures from 1000°C to between 650 and 850°C has enabled the use of chromia-forming ferritic stainless steels as interconnects

278

Charge transport properties of CdMnTe radiation detectors  

Science Conference Proceedings (OSTI)

Growth, fabrication and characterization of indium-doped cadmium manganese telluride (CdMnTe)radiation detectors have been described. Alpha-particle spectroscopy measurements and time resolved current transient measurements have yielded an average charge collection efficiency approaching 100 %. Spatially resolved charge collection efficiency maps have been produced for a range of detector bias voltages. Inhomogeneities in the charge transport of the CdMnTe crystals have been associated with chains of tellurium inclusions within the detector bulk. Further, it has been shown that the role of tellurium inclusions in degrading chargecollection is reduced with increasing values of bias voltage. The electron transit time was determined from time of flight measurements. From the dependence of drift velocity on applied electric field the electron mobility was found to be n = (718 55) cm2/Vs at room temperature.

Kim K.; Rafiel, R.; Boardman, M.; Reinhard, I.; Sarbutt, A.; Watt, G.; Watt, C.; Uxa, S.; Prokopovich, D.A.; Belas, E.; Bolotnikov, A.E.; James, R.B.

2012-04-11T23:59:59.000Z

279

High-Resolution Mn EXAFS of the Oxygen-Evolving Complex inPhotosystem II: Structural Implications for the Mn4Ca Cluster  

DOE Green Energy (OSTI)

The biological generation of oxygen by the oxygen-evolving complex in photosystem II (PS II) is one of natures most important reactions. The recent X-ray crystal structures, while limited by resolutions of 3.2 to 3.5 A, have located the electron density associated with the Mn4Ca complex within the multi-protein PS II complex. Detailed structures critically depend on input from spectroscopic techniques such as EXAFS and EPR/ENDOR, as the XRD resolution does not allow for accurate determination of the position of Mn/Ca or the bridging and terminal ligand atoms. The number and distances of Mn-Mn/Ca/ligand interactions determined from EXAFS provide important constraints for the structure of the Mn cluster. Here we present data from a high-resolution EXAFS method using a novel multi-crystal monochromator that show three short Mn-Mn distances between 2.7 and 2.8 A and hence the presence of three di-mu-oxobridged units in the Mn4Ca cluster. This result imposes clear limitations on the proposed structures based on spectroscopic and diffraction data and provides input for refining such structures.

Yano, Junko; Pushkar, Yulia; Glatzel, Pieter; Lewis, Azul; Sauer,Kenneth; Messinger, Johannes; Bergmann, Uwe; Yachandra, Vittal

2005-09-06T23:59:59.000Z

280

Particle decay branching ratios for states of astrophysical importance in 19Ne  

E-Print Network (OSTI)

We have measured proton and alpha-particle branching ratios of excited states in 19Ne formed using the 19F(3He,t) reaction at a beam energy of 25 MeV. These ratios have a large impact on the astrophysical reaction rates of 15O(alpha,gamma), 18F(p,gamma) and 18F(p,alpha), which are of interest in understanding energy generation in x-ray bursts and in interpreting anticipated gamma-ray observations of novae. We detect decay protons and alpha-particles using a silicon detector array in coincidence with tritons measured in the focal plane detector of our Enge split-pole spectrograph. The silicon array consists of five strip detectors of the type used in the Louvain-Edinburgh Detector Array, subtending angles from 130 degrees to 165 degrees with approximately 14% lab efficiency. The correlation angular distributions give additional confidence in some prior spin-parity assignments that were based on gamma branchings. We measure Gamma_p/Gamma=0.387+-0.016 for the 665 keV proton resonance, which agrees well with the direct measurement of Bardayan et al.

D. W. Visser; J. A. Caggiano; R. Lewis; W. B. Handler; A. Parikh; P. D. Parker

2003-08-08T23:59:59.000Z

Note: This page contains sample records for the topic "mn mo ne" from the National Library of EnergyBeta (NLEBeta).
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281

Color transparency after the NE18 and E665 experiments: Outllok and perspectives at CEBAF  

E-Print Network (OSTI)

CEBAF is a high-luminocity factory of virtual photons with variable virtuality $Q^{2}$ and transverse size. This makes CEBAF, in particular after the energy upgrade to (8-12)GeV, an ideal facility for uncovering new phenomena, and opening new windows, at the interface of the perturbative and nonperturbative QCD. We discuss color transparency as the case for a broad program on electroproduction of vector mesons $\\rho^{0},\\,\\omega^{0},\\,\\phi^{0}$ and their radial excitations $\\rho',\\,\\omega',\\,\\phi'$ at CEBAF. We also comment on the second generation of experiments on color transparency in $^{4}He(e,e'p)$ scattering, which are also feasible at CEBAF. In 1994, we can make more reliable projections into future because our understanding of the onset of color transparency has greatly been augmented by two experiments completed in 1993:\\\\ i) no effect of CT was seen in the SLAC NE18 experiment on $A(e,e'p)$ scattering at virtualities of the exchanged photon $Q^{2} \\lsim 7$ GeV$^{2}$, \\\\ ii) strong signal of CT was observed in the FNAL E665 experiment on exclusive $\\rho^{0}$- meson production in deep inelastic scattering in the same range of $Q^{2}$. \\\\ We discuss the impact of these observations on the CEBAF experimental program. We argue they both are good news, both were anticipated theoretically, and both rule in the correct QCD mechanism of the onset of CT.

J. Nemchik; N. N. Nikolaev; B. G. Zakharov

1994-06-06T23:59:59.000Z

282

An intensity-modulated dual-wavelength He-Ne laser for remote sensing of methane  

SciTech Connect

The differential absorption laser radar for methane sensing detects a leakage of methane gas by emitting into the atmosphere the light of a wavelength absorbable by methane, receiving the light returning after being reflected or scattered on a road or wall surface, etc., and measuring the light intensity lost during the travel. This methane detection system is highly practicable as it makes an instantaneous remote detection possible. The authors have developed a new He-Ne laser that could be used as the light source for the above system. This device emits a two-wavelength laser beam (one wavelength absorbable by methane and the other not absorbable by methane but used for referential purposes) from a single plasma tube, and there is no possibility of the axes of the two-wavelength component deviating from each other. Further, using this laser, they have developed a vehicle-mounted type differential absorption laser radar system which has successfully detected low density methane leakage while the vehicle was moving.

Ueki, T.; Tanaka, H.; Uehara, K.

1988-01-01T23:59:59.000Z

283

Fine structure collision strengths and line ratios for [Ne V] in infrared and optical sources  

E-Print Network (OSTI)

Improved collisions strengths for the mid-infrared and optical transitions in Ne V are presented. Breit-Pauli R-Matrix calculations for electron impact excitation are carried out with fully resolved near-threshold resonances at very low energies. In particular, the fine structure lines at 14 micron and 24 micron due to transitions among the ground state levels 1s^22s^22p^3 (^3P_{0,1,2}), and the optical/near-UV lines at 2973, 3346 and 3426 Angstrom transitions among the ^3P_{0,1,2}, ^1D_2, ^1S_0 levels are described. Maxwellian averaged collision strengths are tabulated for all forbidden transistion within the ground configuration. Significant differences are found in the low temperature range Te < 10000 K for both the FIR and the opitcal transitions compared to previous results. An analysis of the 14/24 line ratio in low-energy-density (LED) plasma conditions reveals considerable variation; the effective rate coefficient may be dominated by the very low-energy behaviour rather than the maxwellian averaged...

Dance, Michael; Nahar, Sultana N; Pradhan, Anil K

2013-01-01T23:59:59.000Z

284

Controlling the nonlinear intracavity dynamics of large He-Ne laser gyroscopes  

E-Print Network (OSTI)

A model based on Lamb's theory of gas lasers is applied to a He-Ne ring laser gyroscope in order to estimate and remove the laser dynamics contribution from the rotation measurements. The intensities of the counter-propagating laser beams exiting one cavity mirror are continuously observed together with a monitor of the laser population inversion. These observables, once properly calibrated with a dedicated procedure, allow us to estimate cold cavity and active medium parameters driving the main part of the nonlinearities of the system. The parameters identification and noise subtraction procedure has been verified by means of a Monte Carlo study of the system, and experimentally tested on the G-Pisa ring laser oriented with the normal to the ring plane almost parallel to the Earth rotation axis. In this configuration the Earth rotation-rate provides the maximum Sagnac effect while the contribution of the orientation error is reduced at minimum. After the subtraction of laser dynamics by a Kalman filter, the ...

Cuccato, Davide; Belfi, Jacopo; Beverini, Nicol; Ortolan, Antonello; Di Virgilio, Angela

2013-01-01T23:59:59.000Z

285

A Measurement of the Neutrino Neutral Current Pi0 Cross Section at MiniBooNE  

SciTech Connect

The MiniBooNE neutrino beam and detector at Fermilab are used to study the production of neutral current {pi}{sup 0} events. The cross sections for neutrino interactions with mineral oil (CH{sub 2}) are reported for resonantly produced and coherently produced single {pi}{sup 0} events. We measure a resonant single {pi}{sup 0} cross section of {sigma}({nu}{sub {mu}} N {pi}{sup 0}) = (0.0129 {+-} 0.0011(stat.) {+-} 0.0043(syst.)) x 10{sup -36} cm{sup 2}/CH{sub 2} at a mean neutrino energy of 1.26 GeV. We measure a coherent single {pi}{sup 0} cross section of {sigma}({nu}{sub {mu}} A {yields} {nu}{sub {mu}} A {pi}{sup 0}) = (0.00077 {+-} 0.00016 (stat.) {+-} 0.00036 (syst.)) x 10{sup -36} cm{sup 2}/CH{sub 2} at mean neutrino energy 1.12 GeV.

Raaf, Jennifer Lynne; /Cincinnati U.

2005-05-01T23:59:59.000Z

286

FeAl and Mo-Si-B Intermetallic Coatings Prepared by Thermal Spraying  

SciTech Connect

FeAl and Mo-Si-B intermetallic coatings for elevated temperature environmental resistance were prepared using high-velocity oxy-fuel (HVOF) and air plasma spray (APS) techniques. For both coating types, the effect of coating parameters (spray particle velocity and temperature) on the microstructure and physical properties of the coatings was assessed. Fe-24Al (wt.%) coatings were prepared using HVOF thermal spraying at spray particle velocities varying from 540 m/s to 700 m/s. Mo-13.4Si-2.6B coatings were prepared using APS at particle velocities of 180 and 350 m/s. Residual stresses in the HVOF FeAl coatings were compressive, while stresses in the APS Mo-Si-B coatings were tensile. In both cases, residual stresses became more compressive with increasing spray particle velocity due to increased peening imparted by the spray particles. The hardness and elastic moduli of FeAl coatings also increased with increasing particle velocity, again due to an increased peening effect. For Mo-Si-B coatings, plasma spraying at 180 m/s resulted in significant oxidation of the spray particles and conversion of the T1 phase into amorphous silica and {alpha}-Mo. The T1 phase was retained after spraying at 350 m/s.

Totemeier, T.C.; Wright, R.N.; Swank, W.D.

2003-04-22T23:59:59.000Z

287

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

SciTech Connect

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.

Medford, Andrew

2012-02-16T23:59:59.000Z

288

van der Waals Epitaxy of MoS2 Layers Using Graphene As Growth Templates  

SciTech Connect

We present a method for synthesizing MoS{sub 2}/Graphene hybrid heterostructures with a growth template of graphene-covered Cu foil. Compared to other recent reports, a much lower growth temperature of 400 C is required for this procedure. The chemical vapor deposition of MoS{sub 2} on the graphene surface gives rise to single crystalline hexagonal flakes with a typical lateral size ranging from several hundred nanometers to several micrometers. The precursor (ammonium thiomolybdate) together with solvent was transported to graphene surface by a carrier gas at room temperature, which was then followed by post annealing. At an elevated temperature, the precursor self-assembles to form MoS{sub 2} flakes epitaxially on the graphene surface via thermal decomposition. With higher amount of precursor delivered onto the graphene surface, a continuous MoS{sub 2} film on graphene can be obtained. This simple chemical vapor deposition method provides a unique approach for the synthesis of graphene heterostructures and surface functionalization of graphene. The synthesized two-dimensional MoS{sub 2}/Graphene hybrids possess great potential toward the development of new optical and electronic devices as well as a wide variety of newly synthesizable compounds for catalysts.

Shi, Yumeng [Massachusetts Institute of Technology (MIT); Zhou, Wu [Vanderbilt University; Lu, Ang-Yu [Academia Sinica, Hefei, China; Fang, Wenjing [Massachusetts Institute of Technology (MIT); Lee, Yi-Hsien [Massachusetts Institute of Technology (MIT); Hsu, Allen Long [Massachusetts Institute of Technology (MIT); Kim, Soo Min [Massachusetts Institute of Technology (MIT); Kim, Ki Kang [Massachusetts Institute of Technology (MIT); Yang, Hui Ying [Singapore University of Technology and Design; Liang, Lain-Jong [Academia Sinica, Hefei, China; Idrobo Tapia, Juan C [ORNL; Kong, Jing [Massachusetts Institute of Technology (MIT)

2012-01-01T23:59:59.000Z

289

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

DOE Patents (OSTI)

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.

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

1998-09-01T23:59:59.000Z

290

Structural and magnetic properties of MnAs nanoclusters formed by Mn ion implantation in GaAs  

SciTech Connect

Ferromagnetic (FM) nanostructures embedded in semiconductors are of fundamental interest since their physical properties could be used in new devices such as memories, sensors or spintronics. In this work, we present results obtained on the synthesis and characterization of nanosized MnAs ferromagnets buried in GaAs. These nanocrystals are formed either by single Mn implantation or Mn + As co-implantation at room temperature into GaAs wafers at 141 and 180 keV respectively. Two doses, 1 x 10{sup 16} and 2 x 10{sup 16} ions {center_dot} cm{sup -2} for each impurity, are tested. Pieces of the wafers are then annealed by RTA or classical furnace annealing at various temperatures under N{sub 2} atmosphere for increasing times. HRTEM and diffraction analysis show that under such conditions MnAs precipitates form with a regular hexagonal structure, the 3m orientation-relationship of precipitates with respect to the matrix offers the most energetically stable configuration. Size distributions are systematically extracted from statistical analysis of ''2 beam'' TEM images. The precipitate mean diameters of nanocrystals populations range from 9 to 13 nm depending on the annealing conditions. Magnetization measurements by SQUID magnetometry on the same samples reveal a progressive transition from a superparamagnetic behavior at room temperature to an FM one at 2K, reflecting a distribution of blocking temperature, due to distribution of size and to dipolar interactions. Curie temperatures in the range of 360K were measured.

Serres, A.; Benassayag, G.; Respaud, M.; Armand, C.; Pesant, J.C.; Mari, A.; Liliental-Weber, Z.; Claverie, A.

2002-08-01T23:59:59.000Z

291

High Level Requirements for the Nuclear Energy -- Knowledge Base for Advanced Modeling and Simulation (NE-KAMS)  

Science Conference Proceedings (OSTI)

The US Department of Energy, Office of Nuclear Energy (DOE-NE), has been tasked with the important mission of ensuring that nuclear energy remains a compelling and viable energy source in the U.S. The motivations behind this mission include cost-effectively meeting the expected increases in the power needs of the country, reducing carbon emissions and reducing dependence on foreign energy sources. In the near term, to ensure that nuclear power remains a key element of U.S. energy strategy and portfolio, the DOE-NE will be working with the nuclear industry to support safe and efficient operations of existing nuclear power plants. In the long term, to meet the increasing energy needs of the U.S., the DOE-NE will be investing in research and development (R&D) and working in concert with the nuclear industry to build and deploy new, safer and more efficient nuclear power plants. The safe and efficient operations of existing nuclear power plants and designing, licensing and deploying new reactor designs, however, will require focused R&D programs as well as the extensive use and leveraging of advanced modeling and simulation (M&S). M&S will play a key role in ensuring safe and efficient operations of existing and new nuclear reactors. The DOE-NE has been actively developing and promoting the use of advanced M&S in reactor design and analysis through its R&D programs, e.g., the Nuclear Energy Advanced Modeling and Simulation (NEAMS) and Consortium for Advanced Simulation of Light Water Reactors (CASL) programs. Also, nuclear reactor vendors are already using CFD and CSM, for design, analysis, and licensing. However, these M&S tools cannot be used with confidence for nuclear reactor applications unless accompanied and supported by verification and validation (V&V) and uncertainty quantification (UQ) processes and procedures which provide quantitative measures of uncertainty for specific applications. The Nuclear Energy Knowledge base for Advanced Modeling and Simulation (NE-KAMS) is being developed at the Idaho National Laboratory in conjunction with Bettis Laboratory, Sandia National Laboratories, Argonne National Laboratory, Utah State University and others with the objective of establishing a comprehensive and web-accessible knowledge base that will provide technical services and resources for V&V and UQ of M&S in nuclear energy sciences and engineering. The knowledge base will serve as an important resource for technical exchange and collaboration that will enable credible and reliable computational models and simulations for application to nuclear reactor design, analysis and licensing. NE-KAMS will serve as a valuable resource for the nuclear industry, academia, the national laboratories, the U.S. Nuclear Regulatory Commission (NRC) and the public and will help ensure the safe, economical and reliable operation of existing and future nuclear reactors. From its inception, NE-KAMS will directly support nuclear energy research, development and demonstration programs within the U.S. Department of Energy (DOE), including the CASL, NEAMS, Light Water Reactor Sustainability (LWRS), Small Modular Reactors (SMR), and Next Generation Nuclear Power Plant (NGNP) programs. These programs all involve M&S of nuclear reactor systems, components and processes, and it is envisioned that NE-KAMS will help to coordinate and facilitate collaboration and sharing of resources and expertise for V&V and UQ across these programs.

Rich Johnson; Hyung Lee; Kimberlyn C. Mousseau

2011-09-01T23:59:59.000Z

292

The Search for Meterorites with Complex Exposure Histories Amoung Ordinary Chondrites with Low 3HE/21NE Ratios  

DOE Green Energy (OSTI)

In calculating cosmic-ray exposure ages of meteorites it is generally assumed that the meteoroids were expelled from a shielded position within their parent body and then experienced a single stage exposure before colliding with Earth. The combination of noble gas and radionuclide measurements in several large meteorites, such as Jilin and Bur Ghelaui, have revealed complex exposure histories: i.e. an initial exposure on the surface of an asteroid (or within meter-sized meteoroid), followed by a second exposure as a smaller object. In fact, orbital dynamics calculations predicted that at least 30% of the meteorites arriving on Earth experienced two- or multiple-stage exposure histories [1]. More recently, after the recognition that the Yarkovsky effect plays an important role in delivering meteorites from the asteroid belt to Earth-crossing orbits, it was confirmed that complex exposure histories should be common [2]. Nevertheless, despite the ability to measure a wide range of radionuclides with accelerator mass spectrometry (AMS), only a few meteorites with complex exposure histories have been identified [e.g. 3,4]. The question is whether the relatively paucity of complex exposure histories is real or have we simply overlooked complex-exposure histories. In this work we focus on meteorites with low {sup 3}He/{sup 21}Ne ratios, since it is known that most meteorites with complex exposure histories have relatively low {sup 3}He/{sup 21}Ne ratios, i.e. the {sup 3}He/{sup 21}Ne ratio is below the ''Bern-line''. Several hypotheses have been suggested for these low {sup 3}He/{sup 21}Ne ratios, including solar heating in low-perihelion orbits, shock-related diffusion of He during the collision that ejected the meteoroid, or an artifact of high shielding conditions [4]. The first two hypotheses seem to be supported by low radiogenic {sup 4}He concentrations in samples with low {sup 3}He, whereas Monte Carlo calculations have shown that some of the low {sup 3}He/{sup 21}Ne ratios may be due to high shielding conditions in objects with radii > 1m [5]. To elucidate these issues, we selected 15 samples with known noble gas concentrations [6] for radionuclide studies and obtained aliquots of the samples adjacent to those measured for noble gases. The specific goal is the identification of complex exposure histories among samples having low {sup 3}He/{sup 21}Ne ratios. All samples have {sup 3}He deficiencies of >20% relative to the ''Bern-line'' (Table 1). Most of the selected samples also have low {sup 22}Ne/{sup 21}Ne ratios ({le}1.1), indicative of high shielding during most of their cosmic-ray exposure (Table 1), whereas one sample (Suizhou) was selected because of its relatively low {sup 81}Kr concentration [7]. In addition, we selected QUE 93021, for which initial radionuclide results suggested a short exposure age. Here we present cosmogenic {sup 10}Be, {sup 26}Al and {sup 36}Cl in stone and metal fractions for the 16 ordinary chondrites listed in Table 1.

Welton, K C; Nishiizumi, K; Caffee, M W

2001-04-30T23:59:59.000Z

293

Effect of a high electric field on the conductivity of MnGa{sub 2}S{sub 4}, MnIn{sub 2}S{sub 4}, and MnGaInS{sub 4} single crystals  

Science Conference Proceedings (OSTI)

The results of studying the effect of a high electric field on the conductivity of MnGa{sub 2}S{sub 4}, MnIn{sub 2}S{sub 4}, and MnGaInS{sub 4} single crystals are reported. The activation energy is determined in high and low electric fields. It is established that the decrease in the activation energy with increasing the external voltage is associated with decreasing the depth of the potential well, in which the electron is located.

Niftiev, N. N. [Azerbaijan State Pedagogical University (Azerbaijan); Tagiev, O. B. [National Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan)

2009-09-15T23:59:59.000Z

294

A measurement of the neutral current neutrino-nucleon elastic cross section at MiniBooNE  

SciTech Connect

The neutral current neutrino-nucleon elastic interaction {nu} N {yields} {nu} N is a fundamental process of the weak interaction ideally suited for characterizing the structure of the nucleon neutral weak current. This process comprises {approx}18% of neutrino events in the neutrino oscillation experiment, MiniBooNE, ranking it as the experiment's third largest process. Using {approx}10% of MiniBooNE's available neutrino data, a sample of these events were identified and analyzed to determine the differential cross section as a function of the momentum transfer of the interaction, Q{sup 2}. This is the first measurement of a differential cross section with MiniBooNE data. From this analysis, a value for the nucleon axial mass M{sub A} was extracted to be 1.34 {+-} 0.25 GeV consistent with previous measurements. The integrated cross section for the Q{sup 2} range 0.189 {yields} 1.13 GeV{sup 2} was calculated to be (8.8 {+-} 0.6(stat) {+-} 0.2(syst)) x 10{sup -40} cm{sup 2}.

Cox, David Christopher; /Indiana U.

2008-02-01T23:59:59.000Z

295

EA-1947: Transfer of the Kansas City Plant, Kansas City, MO | Department of  

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

EA-1947: Transfer of the Kansas City Plant, Kansas City, MO EA-1947: Transfer of the Kansas City Plant, Kansas City, MO EA-1947: Transfer of the Kansas City Plant, Kansas City, MO SUMMARY This EA evaluates potential environmental impacts of a proposal to transfer the NNSA's KCP property either in whole or in part. This includes considering the No Action Alternative, where NNSA relocates operations from the KCP and maintains ownership of its property; and the Proposed Action Alternative, where NNSA transfers the KCP property for mixed use (industrial, warehouse, commercial, office). Under the proposed action, the EA addresses the potential direct, indirect, and cumulative impacts of using the KCP property for uses consistent with current zoning. NNSA also analyzes the potential environmental impacts of partial and/or complete

296

DOE - Office of Legacy Management -- Weldon Spring Chemical Co - MO 03  

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

Weldon Spring Chemical Co - MO 03 Weldon Spring Chemical Co - MO 03 FUSRAP Considered Sites Site: Weldon Spring Chemical Co. (MO.03) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site Disposition: Radioactive Materials Handled: Primary Radioactive Materials Handled: Radiological Survey(s): Site Status: Also see Weldon Spring, Missouri, Site Documents Related to Weldon Spring Chemical Co. Summary of Work Session - Focus Area: Monitoring and Maintenance. Summary of Weldon Spring Long-Term Stewardship Plan Public Workshop. Summary of Work Session - Focus Area: Communication and Public Involvement. Land Use and Institutional Controls and Homeland SecurityFocus Area Work SessionWeldon Spring SiteInterpretive CenterDecember 5, 20022 Agenda7:00 p.m.Welcome, Pam Thompson, Manager, Weldon SpringObjective of

297

EA-1947: Transfer of the Kansas City Plant, Kansas City, MO | Department of  

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

EA-1947: Transfer of the Kansas City Plant, Kansas City, MO EA-1947: Transfer of the Kansas City Plant, Kansas City, MO EA-1947: Transfer of the Kansas City Plant, Kansas City, MO SUMMARY This EA evaluates potential environmental impacts of a proposal to transfer the NNSA's KCP property either in whole or in part. This includes considering the No Action Alternative, where NNSA relocates operations from the KCP and maintains ownership of its property; and the Proposed Action Alternative, where NNSA transfers the KCP property for mixed use (industrial, warehouse, commercial, office). Under the proposed action, the EA addresses the potential direct, indirect, and cumulative impacts of using the KCP property for uses consistent with current zoning. NNSA also analyzes the potential environmental impacts of partial and/or complete

298

Progress in chemical processing of LEU targets for {sup 99}Mo production -- 1997  

SciTech Connect

Presented here are recent experimental results of the continuing development activities associated with converting current processes for producing fission-product {sup 99}Mo from targets using high-enriched uranium (HEU) to low-enriched uranium (LEU). Studies were focused in four areas: (1) measuring the chemical behavior of iodine, rhodium, and silver in the LEU-modified Cintichem process, (2) performing experiments and calculations to assess the suitability of zinc fission barriers for LEU metal foil targets, (3) developing an actinide separations method for measuring alpha contamination of the purified {sup 99}Mo product, and (4) developing a cooperation with Sandia National Laboratories and Los Alamos National Laboratory that will lead to approval by the US Federal Drug Administration for production of {sup 99}Mo from LEU targets. Experimental results continue to show the technical feasibility of converting current HEU processes to LEU.

Vandegrift, G.F.; Conner, C.; Sedlet, J.; Wygmans, D.G. [Argonne National Lab., IL (United States); Wu, D. [Univ. of Illinois, Urbana, IL (United States); Iskander, F.; Landsberger, S. [Univ. of Texas, Austin, TX (United States)

1997-10-01T23:59:59.000Z

299

The development of uranium foil farication technology utilizing twin roll method for Mo-99 irradiation target  

E-Print Network (OSTI)

MDS Nordion in Canada, occupying about 75% of global supply of Mo-99 isotope, has provided the irradiation target of Mo-99 using the rod-type UAl sub x alloys with HEU(High Enrichment Uranium). ANL (Argonne National Laboratory) through co-operation with BATAN in Indonesia, leading RERTR (Reduced Enrichment for Research and Test Reactors) program substantially for nuclear non-proliferation, has designed and fabricated the annular cylinder of uranium targets, and successfully performed irradiation test, in order to develop the fabrication technology of fission Mo-99 using LEU(Low Enrichment Uranium). As the uranium foils could be fabricated in laboratory scale, not in commercialized scale by hot rolling method due to significant problems in foil quality, productivity and economic efficiency, attention has shifted to the development of new technology. Under these circumstances, the invention of uranium foil fabrication technology utilizing twin-roll casting method in KAERI is found to be able to fabricate LEU or...

Kim, C K; Park, H D

2002-01-01T23:59:59.000Z

300

An experimental investigation of double beta decay of /sup 100/Mo  

SciTech Connect

New limits on half-lives for several double beta decay modes of /sup 100/Mo were obtained with a novel experimental system which included thin source films interleaved with a coaxial array of windowless silicon detectors. Segmentation and timing information allowed backgrounds originating in the films to be studied in some detail. Dummy films containing /sup 96/Mo were used to assess remaining backgrounds. With 0.1 mole years of /sup 100/Mo data collected, the lower half-life limits at 90% confidence were 2.7 /times/ 10/sup 18/ years for decay via the two-neutrino mode, 5.2 /times/10/sup 19/ years for decay with the emission of a Majoron, and 1.6 /times/ 10/sup 20/ years and 2.2 /times/ 10/sup 21/ years for neutrinoless 0/sup +/ ..-->.. 2/sup +/ and 0/sup +/ ..-->.. 0/sup +/ transitions, respectively. 50 refs., 38 figs., 11 tabs.

Dougherty, B.L.

1988-11-17T23:59:59.000Z

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


301

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

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

EIS-0475: Disposition of the Bannister Federal Complex, Kansas EIS-0475: Disposition of the Bannister Federal Complex, Kansas City, MO EIS-0475: Disposition of the Bannister Federal Complex, Kansas City, MO Summary 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. NOTE: On November 30, 2012, DOE announced the cancellation of this EIS and its intent to prepare an Environmental Assessment (EA-1947). Public Comment Opportunities None available at this time. Documents Available for Download November 30, 2012 EA-1947: Notice of Intent to Prepare an Environmental Assessment and

302

Time resolved magneto-optical studies of ferromagnetic InMnSb films  

SciTech Connect

We report time resolved magneto-optical measurements in InMnSb ferromagnetic films with 2% and 2.8% Mn contents grown by low temperature molecular beam epitaxy. In order to probe a possible interaction between the spins of photoexcited carriers and the Mn ions, we measured spin dynamics before and after aligning the Mn ions by applying an external magnetic field at temperatures above and below the samples' Curie temperatures. We observed no significant temperature or magnetic field dependence in the relaxation times and attribute the observed dynamics entirely to the relaxation of photoexcited electrons in the conduction band where the s-d coupling with the localized Mn ions is significantly weaker compared to the p-d exchange coupling. We observed several differences in the optical response of our InMnSb samples which could have been influenced mainly by the samples' growth conditions.

Frazier, M.; Kini, R. N.; Nontapot, K.; Khodaparast, G. A. [Department of Physics, Virginia Tech, Blacksburg, Virginia 24061 (United States); Wojtowicz, T. [Institute of Physics, Polish Academy of Sciences 02-668 Warsaw (Poland); Liu, X.; Furdyna, J. K. [Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)

2008-02-11T23:59:59.000Z

303

Investigation of structure, magnetic, and transport properties of Mn-doped SiC films  

SciTech Connect

Mn-doped SiC films were fabricated by radio frequency magnetron sputtering technique. The structure, composition, and magnetic and transport properties of the films were investigated. The results show the films have the 3C-SiC crystal structure and the doped Mn atoms in the form of Mn{sup 2+} ions substitute for C sites in SiC lattice. All the films are ferromagnetic at 300 K, and the ferromagnetism in films arises from the doped Mn atoms and some extended defects. In addition, the saturation magnetization increases with the Mn-doped concentration increasing. The Mn doping does not change the semiconductor characteristics of the SiC films.

Sun Xianke [School of Material Science and Engineering, Tianjin University, Tianjin 300172 (China); Tianjin Key Laboratory for Photoelectric Materials and Devices, Tianjin University of Technology, Tianjin 300384 (China); Guo Ruisong [School of Material Science and Engineering, Tianjin University, Tianjin 300172 (China); An Yukai [Tianjin Key Laboratory for Photoelectric Materials and Devices, Tianjin University of Technology, Tianjin 300384 (China); School of Material Science and Engineering, Tianjin University of Technology, Tianjin 300384 (China); Liu Jiwen [School of Material Science and Engineering, Tianjin University, Tianjin 300172 (China); Tianjin Key Laboratory for Photoelectric Materials and Devices, Tianjin University of Technology, Tianjin 300384 (China); School of Material Science and Engineering, Tianjin University of Technology, Tianjin 300384 (China)

2013-07-15T23:59:59.000Z

304

Ga{sub 1-x}Mn{sub x}N epitaxial films with high magnetization  

Science Conference Proceedings (OSTI)

We report on the fabrication of pseudomorphic wurtzite Ga{sub 1-x}Mn{sub x}N grown on GaN with Mn concentrations up to 10% using molecular beam epitaxy. According to Rutherford backscattering, the Mn ions are mainly at the Ga-substitutional positions, and they are homogeneously distributed according to depth-resolved Auger-electron spectroscopy and secondary-ion mass-spectroscopy measurements. A random Mn distribution is indicated by transmission electron microscopy, and no Mn-rich clusters are present for optimized growth conditions. A linear increase of the c-lattice parameter with increasing Mn concentration is found using x-ray diffraction. The ferromagnetic behavior is confirmed by superconducting quantum-interference measurements showing saturation magnetizations of up to 150 emu/cm{sup 3}.

Kunert, G.; Kruse, C.; Figge, S.; Hommel, D. [Semiconductor Epitaxy, Institute of Solid State Physics, University of Bremen, D-28359 Bremen (Germany); Dobkowska, S.; Jakiela, R.; Stefanowicz, W.; Sawicki, M. [Institute of Physics, Polish Academy of Science, PL-02-668 Warszawa (Poland); Li, Tian; Bonanni, A. [Institute for Semiconductor and Solid State Physics, Johannes Kepler University Linz, A 4040 Linz (Austria); Reuther, H.; Grenzer, J.; Borany, J. von [Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden (Germany); Dietl, T. [Institute of Physics, Polish Academy of Science, PL-02-668 Warszawa (Poland); Institute of Theoretical Physics, Faculty of Physics, University of Warsaw, PL-00-681 Warszawa (Poland)

2012-07-09T23:59:59.000Z

305

Electronic Structure and Oxidation State Changes in the Mn (4) Ca Cluster of Photosystem II  

Science Conference Proceedings (OSTI)

Oxygen-evolving complex (Mn{sub 4}Ca cluster) of Photosystem II cycles through five intermediate states (S{sub i}-states, i = 0-4) before a molecule of dioxygen is released. During the S-state transitions, electrons are extracted from the OEC, either from Mn or alternatively from a Mn ligand. The oxidation state of Mn is widely accepted as Mn{sub 4}(III{sub 2},IV{sub 2}) and Mn{sub 4}(III,IV{sub 3}) for S{sub 1} and S{sub 2} states, while it is still controversial for the S{sub 0} and S{sub 3} states. We used resonant inelastic X-ray scattering (RIXS) to study the electronic structure of Mn{sub 4}Ca complex in the OEC. The RIXS data yield two-dimensional plots that provide a significant advantage by obtaining both K-edge pre-edge and L-edge-like spectra (metal spin state) simultaneously. We have collected data from PSII samples in the each of the S-states and compared them with data from various inorganic Mn complexes. The spectral changes in the Mn 1s2p{sub 3/2} RIXS spectra between the S-states were compared to those of the oxides of Mn and coordination complexes. The results indicate strong covalency for the electronic configuration in the OEC, and we conclude that the electron is transferred from a strongly delocalized orbital, compared to those in Mn oxides or coordination complexes. The magnitude for the S{sub 0} to S{sub 1}, and S{sub 1} to S{sub 2} transitions is twice as large as that during the S{sub 2} to S{sub 3} transition, indicating that the electron for this transition is extracted from a highly delocalized orbital with little change in charge density at the Mn atoms.

Yano, J.; Pushkar, Y.; Messinger, J.; Bergmann, U.; Glatzel, P.; Yachandra, V.K.; /SLAC

2012-08-17T23:59:59.000Z

306

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

SciTech Connect

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

Sikka, V. K.

1982-04-01T23:59:59.000Z

307

Determination of the {sup 22}Ne{sub nucl}/{sup 4}He{sub rad} ratio in natural uranium-rich fluorite by mass spectrometry  

Science Conference Proceedings (OSTI)

A determination by noble gas mass spectrometry of {sup 22}Ne production through the combined reactions {sup 19}F({alpha},n){sup 22}Na({beta}{sup +}){sup 22}Ne and {sup 19}F({alpha},p){sup 22}Ne on natural calcium fluoride is made for the first time. Six samples of U-rich fluorite from a fluorspar deposit in Mexico were used to determine the {sup 22}Ne{sub nucl}/{sup 4}He{sub rad} ratio generated by the spontaneous decay of U during the last 32 Ma. The obtained ratio (1.33 {+-} 0.11) x10{sup -5} (95% confidence), is compared to other experimental data on natural uranium oxides and theoretical values.

Sole, Jesus; Pi, Teresa [Instituto de Geologia, Universidad Nacional Autonoma de Mexico, Cd. Universitaria, Coyoacan, 04510 Mexico D.F. (Mexico)

2006-10-15T23:59:59.000Z

308

Distinct local electronic structure and magnetism for Mn in amorphous Si and Ge  

SciTech Connect

Transition metals such as Mn generally have large local moments in covalent semiconductors due to their partially filled d shells. However, Mn magnetization in group-IV semiconductors is more complicated than often recognized. Here we report a striking crossover from a quenched Mn moment (<0.1 {mu}{sub B}) in amorphous Si (a-Si) to a large distinct local Mn moment ({ge}3{mu}{sub B}) in amorphous Ge (a-Ge) over a wide range of Mn concentrations (0.005-0.20). Corresponding differences are observed in d-shell electronic structure and the sign of the Hall effect. Density-functional-theory calculations show distinct local structures, consistent with different atomic density measured for a-Si and a-Ge, respectively, and the Mn coordination number N{sub c} is found to be the key factor. Despite the amorphous structure, Mn in a-Si is in a relatively well-defined high coordination interstitial type site with broadened d bands, low moment, and electron (n-type) carriers, while Mn in a-Ge is in a low coordination substitutional type site with large local moment and holes (p-type) carriers. Moreover, the correlation between N{sub c} and the magnitude of the local moment is essentially independent of the matrix; the local Mn moments approach zero when N{sub c} > 7 for both a-Si and a-Ge.

Zeng, Li; Cao, J. X.; Helgren, E.; Karel, J.; Arenholz, E.; Ouyang, Lu; Smith, David J.; Wu, R. Q.; Hellman, F.

2010-06-01T23:59:59.000Z

309

Ion-exchanged MnO2 nanoparticles as cathodes of lithium ion ...  

Science Conference Proceedings (OSTI)

Presentation Title, Ion-exchanged MnO2 nanoparticles as cathodes of lithium ion batteries at elevated temperatures. Author(s), Dawei Liu, Jasper Wright, Wei...

310

Investigation of Structural Stability of Monolayer MnO 2 Sheet under ...  

Science Conference Proceedings (OSTI)

Presentation Title, Investigation of Structural Stability of Monolayer MnO2 Sheet under Electron Beam Irradiation. Author(s), Yong Wang, Chenghua Sun, Jin Zou ...

311

Optimization of Na 0.44 MnO 2 Cathode Material - Programmaster.org  

Science Conference Proceedings (OSTI)

Symposium, Energy Storage: Materials, Systems, and Applications. Presentation Title, Optimization of Na0.44MnO2 Cathode Material for Use in Aqueous...

312

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

E-Print Network (OSTI)

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

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

2009-01-01T23:59:59.000Z

313

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

E-Print Network (OSTI)

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

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

2009-04-29T23:59:59.000Z

314

F-8: Modeling of Mn-Ni-Si-Cu Precipitation in Reactor Pressure ...  

Science Conference Proceedings (OSTI)

Presentation Title, F-8: Modeling of Mn-Ni-Si-Cu Precipitation in Reactor .... Steels 316 and Comparison with the Rate Theory Model of a Multicomponent System.

315

Soft X-ray Spectroscopy of C60/Copper Phthalocyanine/MoO3 Interfaces: Role of Reduced MoO3 on Energetic Band Alignment and Improved Performance  

Science Conference Proceedings (OSTI)

The interfacial electronic structure of C{sub 60}/copper phthalocyanine (CuPc)/molybdenum trioxide (MoO{sub 3}) thin films grown in situ on indium tin oxide (ITO) substrates has been studied using synchrotron radiation-excited photoelectron spectroscopy in an attempt to understand the influence of oxide interlayers on the performance of small molecule organic photovoltaic devices. The MoO{sub 3} layer on ITO is found to significantly increase the work function of the substrate and induces large interface dipoles and band bending at the CuPc/MoO{sub 3} interface. The large band bending confirms the formation of an internal potential that assists hole extraction from the CuPc layer to the electrode. The electronic structure of the MoO{sub 3} layer on ITO was also examined using various soft X-ray spectroscopies to probe the conductive nature of the MoO{sub 3} thin film.

S Cho; L Piper; A DeMasi; A Preston; K Smith; K Chauhan; R Hatton; T Jones

2011-12-31T23:59:59.000Z

316

Effect of Mo Back Contact on Na Out-Diffusion and Device Performance of Mo/Cu(In,Ga)Se2/CdS/ZnO Solar Cells: Preprint  

DOE Green Energy (OSTI)

This conference paper describes the molybdenum thin films that were deposited on soda lime glass (SLG) substrates using direct-current planar magnetron sputtering, with a sputtering power density of 1.2 W/cm2. The working gas (Ar) pressure was varied from 0.6 to 16 mtorr to induce changes in the Mo films' morphology and microstructure. Thin films of Cu(In,Ga)Se2 (CIGS) were deposited on the Mo-coated glass using the 3-stage co-evaporation process. The morphology of both the Mo-coated SLG and the CIGS thin films grown on it was examined using high-resolution scanning electron microscopy. Na was depth profiled in the Mo and CIGS films by secondary ion mass spectrometry. The device performance was evaluated under standard conditions of 1000 W/m2 and 25 C. Optimum device performance is found for an intermediate Mo sputtering pressure.

Al-Thani, H. A.; Hasoon, F. S.; Young, M.; Asher, S.; Alleman, J. L.; Al-Jassim, M. M.; Williamson, D. L.

2002-05-01T23:59:59.000Z

317

Semesterplan WS 2012/13 Chemie (VL) fr Zahnmediziner (1. FS) Stand. 02.10.2012 Mo 22. Okt.  

E-Print Network (OSTI)

Semesterplan WS 2012/13 Chemie (VL) für Zahnmediziner (1. FS) Stand. 02.10.2012 Mo 22. Okt;Semesterplan WS 2012/13 Chemie (VL) für Zahnmediziner (1. FS) Stand. 02.10.2012 Mo 17. Dez. 10.15 11

Gollisch, Tim

318

Small non-polar complexes exhibiting significant piezoelectric properties: Solvothermal synthesis and crystal structures of MO{sub 5}V(tren){center_dot}H{sub 2}O (M=Mo and W; tren=tris(2-aminoethyl)amine)  

SciTech Connect

The two isostructural complexes MO{sub 5}V(tren){center_dot}H{sub 2}O (M=Mo (1) and W (2)) were synthesized under solvothermal conditions at pH Almost-Equal-To 12 crystallizing in the non-centrosymmetric space group P2{sub 1}2{sub 1}2{sub 1}. The structures are constructed by a distorted tetrahedral [MO{sub 4}]{sup 2-} anion bound via one shared oxygen atom to a severely distorted [V{sup IV}N{sub 4}O]{sup 2+} complex completing the octahedral coordination around the V centre. The two O atoms in the VN{sub 4}O{sub 2} octahedron are in cis position. The two compounds represent rare examples where the [MO{sub 4}]{sup 2-} anion is acting as a ligand. Both compounds exhibit a piezoelectric effect which is more pronounced for M=Mo. The samples are further characterized with IR and UV/Vis spectroscopy and thermal analysis. - Graphical abstract: The complexes [(V(tren)O)(MO4)]{center_dot}H2O (M = Mo, W; tren = tris(2-aminoethyl)amine)) composed of vertex-linked [MO4]{sup 2-} tetrahedron and [VN4O6]{sup 2+}octahedron. Highlights: Black-Right-Pointing-Pointer [MO{sub 4}]{sup 2-} tetrahedron (M=Mo, W) acting as ligand. Black-Right-Pointing-Pointer Jahn-Teller and steric distortion of the [VN{sub 4}O{sub 2}]{sup 2+} octahedron. Black-Right-Pointing-Pointer Non-centrosymmetric complexes exhibiting pronounced piezoelectric effect.

Rasmussen, M.; Naether, C. [Institut fuer Anorganische Chemie, Christian-Albrechts-Universitaet Kiel, Max-Eyth-Str. 2, D-24118 Kiel (Germany)] [Institut fuer Anorganische Chemie, Christian-Albrechts-Universitaet Kiel, Max-Eyth-Str. 2, D-24118 Kiel (Germany); Bismayer, U. [Mineralogisch-Petrographisches Institut, Universitaet Hamburg, Grindelallee 48 20146 Hamburg (Germany)] [Mineralogisch-Petrographisches Institut, Universitaet Hamburg, Grindelallee 48 20146 Hamburg (Germany); Bensch, W., E-mail: wbensch@ac.uni-kiel.de [Institut fuer Anorganische Chemie, Christian-Albrechts-Universitaet Kiel, Max-Eyth-Str. 2, D-24118 Kiel (Germany)

2012-11-15T23:59:59.000Z

319

Giant tunneling magnetoresistance in Co{sub 2}MnSi/Al-O/Co{sub 2}MnSi magnetic tunnel junctions  

SciTech Connect

Magnetic tunnel junctions (MTJs) with a stacking structure of Co{sub 2}MnSi/Al-O/Co{sub 2}MnSi were fabricated using magnetron sputtering system. Fabricated MTJ exhibited an extremely large tunneling magnetoresistance (TMR) ratio of 570% at low temperature, which is the highest TMR ratio reported to date for an amorphous Al-O tunneling barrier. The observed dependence of tunneling conductance on bias voltage clearly reveals the half-metallic energy gap of Co{sub 2}MnSi. The origins of large temperature dependence of TMR ratio were discussed on the basis of the present results.

Sakuraba, Y.; Hattori, M.; Oogane, M.; Ando, Y.; Kato, H.; Sakuma, A.; Miyazaki, T.; Kubota, H. [Department of Applied Physics, Graduate School of Engineering, Tohoku University, Aoba-yama 6-6-05, Aramaki, Aoba-ku, Sendai 980-8579 (Japan); Nanoelectronics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba 305-8568 (Japan)

2006-05-08T23:59:59.000Z

320

Large energy absorption in Ni-Mn-Ga/polymer composites  

SciTech Connect

Ferromagnetic shape memory alloys can respond to a magnetic field or applied stress by the motion of twin boundaries and hence they show large hysteresis or energy loss. Ni-Mn-Ga particles made by spark erosion have been dispersed and oriented in a polymer matrix to form pseudo 3:1 composites which are studied under applied stress. Loss ratios have been determined from the stress-strain data. The loss ratios of the composites range from 63% to 67% compared to only about 17% for the pure, unfilled polymer samples.

Feuchtwanger, Jorge; Richard, Marc L.; Tang, Yun J.; Berkowitz, Ami E.; O'Handley, Robert C.; Allen, Samuel M. [Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); University of California, San Diego, La Joya, California 92093 (United States); Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2005-05-15T23:59:59.000Z

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


321

High-field superconductivity in some bcc Ti-Mo and Nb-Zr alloys  

Science Conference Proceedings (OSTI)

Zero electrical resistance at unusually high magnetic field strengths has been observed in the bcc alloys Ti-16 a/o (atomic percent) Mo, Nb-12 a/o Zr, and Nb-25 a/o Zr. The maximum highfield zero-resistance current density, Jc, in these ...

R. R. Hake; T. G. Berlincourt; D. H. Leslie

1962-01-01T23:59:59.000Z

322

MoCha-pi, an exogenous coordination calculus based on mobile channels  

Science Conference Proceedings (OSTI)

In this paper we present MoCha-?, an exogenous coordination calculus that is based on mobile channels. A mobile channel is a coordination primitive that allows anonymous point-to-point communication between processes. Our calculus is an extension ... Keywords: calculus, coordination, distributed mobile channels

Juan Guillen-Scholten; Farhad Arbab; Frank de Boer; Marcello Bonsangue

2005-03-01T23:59:59.000Z

323

The MoLE project: an international experiment about mobile learning environment  

Science Conference Proceedings (OSTI)

This paper aims to present an international project, called the MoLE Project, which provided learning resources and tools for personnel in disaster or emergency situations. Thus, it illustrates the interpenetration of e-Learning and field workers with ... Keywords: education, mobile technologies, system evaluation

Marie-Hlne Ferrer, Jacob Hodges, Nathalie Bonnardel

2013-08-01T23:59:59.000Z

324

MoSi2 and Other Silicides as High Temperature Structural Materials  

Science Conference Proceedings (OSTI)

... R.W. Stusrud, R.A. MacKay,. D.L. Anton, T. Khan, R.D. Kissinger, D.L. Klarstmm ..... 'I. 3 10-S d. 5. Q. H. 3 10= g. 5. E a. E m-7. 'E 5, .- z. 10-8 '. 5 c:3si MoSi2. //II.

325

Spectroscopy of low energy solar neutrinos by MOON -Mo Observatory Of Neutrinos-  

E-Print Network (OSTI)

Spectroscopy of low energy solar neutrinos by MOON -Mo Observatory Of Neutrinos- R. Hazamaa , P Be solar 's. The present status of MOON for the low energy solar experiment is briefly discussed the pp solar flux with good accuracy. 1. INTRODUCTION Realtime studies of the high-energy component of 8

Washington at Seattle, University of

326

To appear in the ACM SIGGRAPH conference proceedings Jeong-Mo Hong  

E-Print Network (OSTI)

To appear in the ACM SIGGRAPH conference proceedings ? ??? ????? Ð? ? Jeong-Mo Hong£ Korea of viscosity influences the shape of air bubbles in water. In this paper, we extend previous fluid simulation

Frey, Pascal

327

Aqueous Phase Glycerol Reforming by PtMo Bimetallic Nano-Particle Catalyst: Product Selectivity and Structural Characterization  

Science Conference Proceedings (OSTI)

A carbon supported PtMo aqueous phase reforming catalyst for producing hydrogen from glycerol was characterized by analysis of the reaction products and pathway, TEM, XPS and XAS spectroscopy. Operando X-ray absorption spectroscopy (XAS) indicates the catalyst consists of bimetallic nano-particles with a Pt rich core and a Mo rich surface. XAS of adsorbed CO indicates that approximately 25% of the surface atoms are Pt. X-ray photoelectron spectroscopy indicates that there is unreduced and partially reduced Mo oxide (MoO{sub 3} and MoO{sub 2}), and Pt-rich PtMo bimetallic nano-particles. The average size measured by transmission electron microscopy of the fresh PtMo nano-particles is about 2 nm, which increases in size to 5 nm after 30 days of glycerol reforming at 31 bar and 503 K. The catalyst structure differs from the most energetically stable structure predicted by density functional theory (DFT) calculations for metallic Pt and Mo atoms. However, DFT indicates that for nano-particles composed of metallic Pt and Mo oxide, the Mo oxide is at the particle surface. Subsequent reduction would lead to the experimentally observed structure. The aqueous phase reforming reaction products and intermediates are consistent with both C-C and C-OH bond cleavage to generate H{sub 2}/CO{sub 2} or the side product CH{sub 4}. While the H{sub 2} selectivity at low conversion is about 75%, cleavage of C-OH bonds leads to liquid products with saturated carbon atoms. At high conversions (to gas), these will produced additional CH{sub 4} reducing the H{sub 2} yield and selectivity.

Stach E. A.; Dietrich, P.J.; Lobo-Lapidus, R.J.; Wu, T.; Sumer, A.; Akatay, M.C.; Fingland, B.R.; Guo, N.; Dumesic, J.A.; Marshall, C.L.; Jellinek, J.; Delgass, W.N.; Ribeiro, F.H.; Miller, J.T.

2012-03-01T23:59:59.000Z

328

Specific DNA cleavage mediated by [SalenMn(III)][sup +  

Science Conference Proceedings (OSTI)

The combination of [SalenMn(III)][sup +] and a terminal oxidant affords efficient and specific cleavage of right-handed double-helical DNA in regions rich in A:T base pairs. Metal complexes of the tetradentate chelating ligands Salen (Salen = N,N[prime]-ethylenebis(salicylideneaminato)) have been part of the inorganic chemistry literature for several decades. The cationic manganese(III) complex [SalenMn(III)][sup +] (1) is an efficient catalyst for the epoxidation of olefins with terminal oxidants such as iodosylbenzene. 1 also catalyzes oxidative C-H bond activation. The flat, crescent shape of 1, its aromatic and cationic nature, and its ability to catalyze hydrocarbon oxidation are features shared in whole or in part by metal complexes which bind to DNA and cleave it via oxidative processes. These similarities prompted the authors to evaluate the DNA-cleaving properties of 1, and they now report that 1 mediates specific cleavage of right-handed double-helical DNA in a reaction requiring a terminal oxidant. 20 refs., 3 figs., 1 tab.

Gravert, D.J.; Griffin, J.H. (Stanford Univ., CA (United States))

1993-02-12T23:59:59.000Z

329

Microstructural Analysis of Irradiated U-Mo Fuel Plates: Recent Results  

Science Conference Proceedings (OSTI)

Microstructural characterization of irradiated dispersion and monolithic RERTR fuel plates using scanning electron microscopy (SEM) is being performed in the Electron Microscopy Laboratory at the Idaho National Laboratory. The SEM analysis of samples from U-Mo dispersion fuel plates focuses primarily on the behavior of the Si that has been added to the Al matrix to improve the irradiation performance of the fuel plate and on the overall behavior of fission gases (e.g., Xe and Kr) that develop as bubbles in the fuel microstructure. For monolithic fuel plates, microstructural features of interest, include those found in the U-Mo foil and at the U-Mo/Zr and Zr/6061 Al cladding interfaces. For both dispersion and monolithic fuel plates, samples have been produced using an SEM equipped with a Focused Ion Beam (FIB). These samples are of very high quality and can be used to uncover some very unique microstructural features that are typically not observed when characterizing samples produced using more conventional techniques. Overall, for the dispersion fuel plates with matrices that contained Si, narrower fuel/matrix interaction layers are typically observed compared to the fuel plates with pure Al matrix, and for the monolithic fuel plates microstructural features have been observed in the U-10Mo foil that are similar to what have been observed in the fuel particles found in U-Mo dispersion fuels. Most recently, more prototypic monolithic fuel samples have been characterized and this paper describes the microstructures that have been observed in these samples.

D. D. Keiser, Jr.; J. Jue; B. D. Miller; J. Gan; A. B. Robinson; P. V. Medvedev

2012-03-01T23:59:59.000Z

330

Dietary resveratrol administration increases MnSOD expression and activity in mouse brain  

E-Print Network (OSTI)

SOD protein level (140%) and activity (75%). The increase in MnSOD was not due to a substantial proliferationDietary resveratrol administration increases MnSOD expression and activity in mouse brain Ellen L oxidative stress. In vitro studies have shown an increase in antioxidant enzyme activities following

Stuart, Jeffrey A.

331

Synthesis and Characterization of MnO2-Based Mixed Oxides as Supercapacitors  

E-Print Network (OSTI)

Synthesis and Characterization of MnO2-Based Mixed Oxides as Supercapacitors Hansung Kim. Available electronically January 28, 2003. The development of a high-power-density supercapacitor made to develop supercapacitors based on non-noble oxides.13 Hydrous manganese oxide (a-MnO2 · nH2O

Popov, Branko N.

332

Element-specific study of the temperature dependent magnetization of Co-Mn-Sb thin films  

SciTech Connect

Magnetron sputtered thin Co-Mn-Sb films were investigated with respect to their element-specific magnetic properties. Stoichiometric Co{sub 1}Mn{sub 1}Sb{sub 1} crystallized in the C1{sub b} structure has been predicted to be half-metallic and is therefore of interest for spintronics applications. It should show a characteristic antiferromagnetic coupling of the Mn and Co magnetic moments and a transition temperature T{sub C} of about 480K. Although the observed transition temperature of our 20nm thick Co{sub 32.4}Mn{sub 33.7}Sb{sub 33.8}, Co{sub 37.7}Mn{sub 34.1}Sb{sub 28.2} and Co{sub 43.2}Mn{sub 32.6}Sb{sub 24.2} films is in quite good agreement with the expected value, we found a ferromagnetic coupling of the Mn and Co magnetic moments which indicates that the films do not crystallize in the C1{sub b} structure and are probably not fully spin-polarized. The ratio of the Co and Mn moments does not change up to the transition temperature and the temperature dependence of the magnetic moments can be well described by the mean field theory.

Schmalhorst, J.; Ebke, D.; Meinert, M.; Thomas, A.; Reiss, G.; Arenholz, E.

2008-09-30T23:59:59.000Z

333

Cation Effects on the Layer Structure of Biogenic Mn-Oxides  

E-Print Network (OSTI)

Radiation Lightsource (SSRL). Wet sample slurries were placed in an aluminum sample cell with Lexan windows-bs (Samuel Webb, SSRL). Two Mn-oxide references, triclinic birnessite (TcBir) and -MnO2 were synthesized and Environmental and Quality (ISEQ) Graduate Fellowship. M.Z. also thanks Dr. Samuel Webb at SSRL for his help

Sparks, Donald L.

334

[Characterization of lignin and Mn peroxidases from Phanerochaete chrysosporium]. Progress report  

DOE Green Energy (OSTI)

Lignin peroxidases were investigated with respect to enzyme kinetics and NMR spectroscopy of the heme domain. MN peroxidases were studied with respect to the role of oxalate in enzyme activity, the NMR spectroscopy of the heme domain. Gene expression of both lignin and MN peroxidases were examined as well as expression of site-directed mutants aimed at scale up production of these enzymes.

Not Available

1992-12-31T23:59:59.000Z

335

Electric-Field Modulation of Curie Temperature in (Ga, Mn)As Field-Effect Transistor Structures with Varying Channel Thickness and Mn Compositions  

SciTech Connect

We have investigated the change of T{sub C} of ferromagnetic semiconductor (Ga, Mn)As by changing hole concentration p. The field effect transistor structure was utilized to change p. The relation T{sub C}propor top{sup 0.2} is obtained for three samples, despite the difference of their Mn composition and thickness, indicating that the relation holds over 2 decades of p.

Nishitani, Y.; Endo, M. [Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577 (Japan); Chiba, D. [Semiconductor Spintronics Project, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Sanban-cho 5, Chiyoda-ku, Tokyo 102-0075 (Japan); Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577 (Japan); Matsukura, F.; Ohno, H. [Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577 (Japan); Semiconductor Spintronics Project, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Sanban-cho 5, Chiyoda-ku, Tokyo 102-0075 (Japan)

2010-01-04T23:59:59.000Z

336

Estudo das propriedades termomecnicas da liga cu 78,3% - al 9,8% mn 11,9%.  

E-Print Network (OSTI)

??The alloys Cu 78,3% - Al 9,8% - Mn 11,9 and 77.5% Cu - Al 9.8% - Mn 11,9% -% Nb 0.5 - 0.3% Ni (more)

Rafael Evaristo Calute

2012-01-01T23:59:59.000Z

337

Measurement of the reaction O-17(?,n)Ne-20 and its impact on the s process in massive stars  

E-Print Network (OSTI)

The ratio between the rates of the reactions O-17(\\alpha,n)Ne-20 and O-17(\\alpha,\\gamma)Ne-21 determines whether O-16 is an efficient neutron poison for the s process in massive stars, or if most of the neutrons captured by O-16(n,\\gamma) are recycled into the stellar environment. This ratio is of particular relevance to constrain the s process yields of fast rotating massive stars at low metallicity. Recent results on the (\\alpha,\\gamma) channel have made it necessary to measure the (\\alpha,n) reaction more precisely and investigate the effect of the new data on s process nucleosynthesis in massive stars. We present a new measurement of the O-17(\\alpha, n) reaction using a moderating neutron detector. In addition, the (\\alpha, n_1) channel has been measured independently by observation of the characteristic 1633 keV \\gamma-transition in Ne-20. The reaction cross section was determined with a simultaneous R-matrix fit to both channels. (\\alpha,n) and (\\alpha, \\gamma) resonance strengths of states lying below the covered energy range were estimated using their known properties from the literature. A new O-17(\\alpha,n) reaction rate was deduced for the temperature range 0.1 GK to 10 GK. It was found that in He burning conditions the (\\alpha,\\gamma) channel is strong enough to compete with the neutron channel. This leads to a less efficient neutron recycling compared to a previous suggestion of a very weak (\\alpha,\\gamma) channel. S process calculations using our rates confirm that massive rotating stars do play a significant role in the production of elements up to Sr, but they strongly reduce the s process contribution to heavier elements.

A. Best; M. Beard; J. Grres; M. Couder; R. deBoer; S. Falahat; R. T. Gray; A. Kontos; K. -L. Kratz; P. J. LeBlanc; Q. Li; S. O'Brien; N. zkan; M. Pignatari; K. Sonnabend; R. Talwar; W. Tan; E. Uberseder; M. Wiescher

2013-04-23T23:59:59.000Z

338

Scanning tunneling microscopy reveals LiMnAs is a room temperature anti-ferromagnetic semiconductor  

SciTech Connect

We performed scanning tunneling microscopy and spectroscopy on a LiMnAs(001) thin film epitaxially grown on an InAs(001) substrate by molecular beam epitaxy. While the in situ cleavage exposed only the InAs(110) non-polar planes, the cleavage continued into the LiMnAs thin layer across several facets. We combined both topography and current mappings to confirm that the facets correspond to LiMnAs. By spectroscopy we show that LiMnAs has a band gap. The band gap evidenced in this study, combined with the known Neel temperature well above room temperature, confirms that LiMnAs is a promising candidate for exploring the concepts of high temperature semiconductor spintronics based on antiferromagnets.

Wijnheijmer, A. P.; Koenraad, P. M. [COBRA Inter-University Research Institute, Department of Applied Physics, Eindhoven University of Technology, P. O. Box 513, NL-5600 MB Eindhoven (Netherlands); Marti, X. [Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 3, 121 16 Prague 2 (Czech Republic); Institute of Physics ASCR, v.v.i., Cukrovarnicka 10, 162 53 Prague 6 (Czech Republic); Holy, V. [Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 3, 121 16 Prague 2 (Czech Republic); Cukr, M.; Novak, V. [Institute of Physics ASCR, v.v.i., Cukrovarnicka 10, 162 53 Prague 6 (Czech Republic); Jungwirth, T. [Institute of Physics ASCR, v.v.i., Cukrovarnicka 10, 162 53 Prague 6 (Czech Republic); School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD (United Kingdom)

2012-03-12T23:59:59.000Z

339

Improvement of Thermal Stability of Li-Ion Batteries by Polymer Coating of LiMn2O4  

E-Print Network (OSTI)

lithium-ion battery by arresting the Mn + dissolution, thereby increasing the battery stability. Key Words: Lithium Battery, Cathode,

Stroeve, Pieter; Vidu, Ruxandra

2004-01-01T23:59:59.000Z

340

Unprecedented {sup 1}/{sub {infinity}}[{beta}-Mo{sub 8}O{sub 26}]{sup 4-} polymeric chains and four novel organic-inorganic hybrids based on Mo-POMs and azaheterocycles templates  

Science Conference Proceedings (OSTI)

Abstrct: Four novel organic-inorganic hybrid materials based on Mo-POMs and organic templates, namely [DEB] [{beta}-Mo{sub 8}O{sub 26}] [NH{sub 4}]{sub 2} (1), [BMIM] [{beta}-Mo{sub 8}O{sub 26}]{sub 0.5}{center_dot}H{sub 2}O (2), [BMIM] [1D-Mo{sub 8}O{sub 26}]{sub 0.5} (3) and {l_brace}3D-[Cu(DIE){sub 2}] [1D-Mo{sub 8}O{sub 26}]{sub 0.5}{r_brace}{sub {infinity}} (4) [DEB= 1,1 Prime -diethyl-4,4 Prime -bipyridinium, BMIM=1,1 Prime -bis(1-methylimidazolium)methylene, DIE=1,2-diimidazoloethane] have been hydrothermally synthesized and characterized by elemental analyses, IR spectroscopy, thermal gravimetric analysis(TGA) and single-crystal X-ray diffraction. Both compounds 1 and 2 are POMs-based supramolecular compounds consisted of independent [{beta}-Mo{sub 8}O{sub 26}]{sup 4-} anions and [DEB]{sup 2+} or [BMIM]{sup 2+} organic cations. Compound 3 is the first external template example of Mo-POMs-based supramolecular network incorporated with novel {sup 1}/{sub {infinity}}[{beta}-Mo{sub 8}O{sub 26}]{sup 4-} polymeric chains. Compound 4 is a rare supramolecular structure that contains octamolybdate {sup 1}/{sub {infinity}}[{beta}-Mo{sub 8}O{sub 26}]{sup 4-} polymeric chains interconnected via DIE ligands to form a 3D net. Moreover, it was indicated that these polyacid compounds had definite catalytic activities on the probe reaction of acetaldehyde oxidation to acetic acid with H{sub 2}O{sub 2}. - Graphical abstract: Four novel organic templated polyoxometalates comprising of 0D, 1D and 3D supramolecular frameworks together with the catalytic activities on the acetaldehyde oxidation to acetic acid were reported. Highlights: Using cation templated self-assembly four novel polyoxometalates were prepared. Compounds 1 and 2 consisted of independent [{beta}-Mo{sub 8}O{sub 26}]{sup 4-} anions and organic cations. Compound 3 is the first external template-assisted POMs with {sup 1}/{sub {infinity}}[{beta}-Mo{sub 8}O{sub 26}]{sup 4-} chain. Compound 4 is a rare 3D net containing {sup 1}/{sub {infinity}}[{beta}-Mo{sub 8}O{sub 26}]{sup 4-} 1D chain and DIE ligands. These compounds had definite catalytic activities on the acetaldehyde oxidation.

Du Haijuan; Zunzhe Shu [College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001 (China); Niu Yunyin, E-mail: niuyy@zzu.edu.cn [College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001 (China); Song Lisha; Zhu Yu [College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001 (China)

2012-06-15T23:59:59.000Z

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


341

Manganese trends in a sample of thin and thick disk stars. The origin of Mn  

E-Print Network (OSTI)

CONTEXT: Manganese is an iron-peak element and although the nucleosynthesis path that leads to its formation is fairly well understood, it remains unclear which objects, SN II and/or SN Ia, that contribute the majority of Mn to the interstellar medium. It also remains unclear to which extent the supernovae Mn yields depend on the metallicity of the progenitor star or not. AIMS: By using a well studied and well defined sample of 95 dwarf stars we aim at further constraining the formation site(s) of Mn. METHODS: We derive Mn abundances through spectral synthesis of four Mn I lines at 539.4, 549.2, 601.3, and 601.6 nm. Stellar parameters and data for oxygen are taken from Bensby et al. (2003, 2004, 2005). RESULTS: When comparing our Mn abundances with O abundances for the same stars we find that the abundance trends in the stars with kinematics of the thick disk can be explained by metallicity dependent yields from SN II. We go on and combine our data for dwarf stars in the disks with data for dwarf and giant stars in the metal-poor thick disk and halo from the literature. We find that dwarf and giant stars show the same trends, which indicates that neither non-LTE nor evolutionary effects are a major concern for Mn. Furthermore, the [Mn/O] vs [O/H] trend in the halo is flat. CONCLUSIONS: We conclude that the simplest interpretation of our data is that Mn is most likely produced in SN II and that the Mn yields for such SNae must be metallicity dependent. Contribution from SN Ia in the metal-rich thin disk can not, however, be excluded.

S. Feltzing; M. Fohlman; T. Bensby

2007-03-19T23:59:59.000Z

342

Microstructural Characterization of U-7Mo/Al-Si Alloy Matrix Dispersion Fuel Plates Fabricated at 500C  

Science Conference Proceedings (OSTI)

The starting microstructure of a dispersion fuel plate will impact the overall performance of the plate during irradiation. To improve the understanding of the as-fabricated microstructures of UMo dispersion fuel plates, particularly the interaction layers that can form between the fuel particles and the matrix, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analyses have been performed on samples from depleted U7Mo (U7Mo) dispersion fuel plates with either Al2 wt.% Si(Al2Si) or AA4043 alloy matrix. It was observed that in the thick interaction layers, U(Al, Si)3 and U6Mo4Al43 were present, and in the thin interaction layers, (U, Mo) (Al, Si)3, U(Al, Si)4, U3Si3Al2, U3Si5, and possibly USi-type phases were observed. The U3Si3Al2 phase contained some Mo. Based on the results of this investigation, the time that a dispersion fuel plate is exposed to a relatively high temperature during fabrication will impact the nature of the interaction layers around the fuel particles. Uniformly thin, Si-rich layers will develop around the U7Mo particles for shorter exposure times, and thicker, Si-depleted layers will develop for the longer exposure times.

Dennis D. Keiser, Jr.; Jan-Fong Jue; Bo Yao; Emmanuel Perez; Yongho Sohn; Curtis R. Clark

2011-05-01T23:59:59.000Z

343

Low temperature hydrothermally synthesized nanocrystalline orthorhombic LiMnO2 cathode material for lithium-ion cells  

Science Conference Proceedings (OSTI)

Nanocrystalline orthorhombic LiMnO2 particles with an average particle size of about 35 nm in diameter were successfully synthesized by a hydrothermal process at 160-180 C from trimanganese tetroxide (Mn3O4) prepared ... Keywords: hydrothermal process, lithium ion battery, nanocrystalline, orthorhombic LiMnO2, solvothermal process

Mengqiang Wu; Ai Chen; Rongqing Xu; Yue Li

2003-05-01T23:59:59.000Z

344

A rational self-sacrificing template route to LiMn2O4nanotubes and nanowires  

Science Conference Proceedings (OSTI)

Single-crystalline LiMn2O4 nanotubes and nanowires have been synthesized via a low-temperature molten salt synthesis method, using the prepared ?-MnO2 nanotubes and ?-MnO2 nanowires as the precursors ...

Baojun Yang; Xinsong Yuan; Duoli Chai

2011-01-01T23:59:59.000Z

345

Microsoft Word - figure_8.doc  

Gasoline and Diesel Fuel Update (EIA)

T I D O R W Y ND SD C A N V U T CO NE KS A Z NM OK TX MN WI MI IA I L IN OH MO AR M S AL GA T N KY FL SC NC WV MD DE VA PA NJ NY CT RI MA VT NH ME LA HI A K J a p a n Mexico M e x...

346

Measuring the speed of light using beating longitudinal modes in an open-cavity HeNe laser  

E-Print Network (OSTI)

We describe an undergraduate laboratory that combines an accurate measurement of the speed of light, a fundamental investigation of a basic laser system, and a nontrivial use of statistical analysis. Students grapple with the existence of longitudinal modes in a laser cavity as they change the cavity length of an adjustable-cavity HeNe laser and tune the cavity to produce lasing in the TEM$_{00}$ mode. For appropriate laser cavity lengths, the laser gain curve of a HeNe laser allows simultaneous operation of multiple longitudinal modes. The difference frequency between the modes is measured using a self-heterodyne detection with a diode photodetector and a radio frequency spectrum analyzer. Asymmetric effects due to frequency pushing and frequency pulling, as well as transverse modes, are minimized by simultaneously monitoring and adjusting the mode structure as viewed with a Fabry-Perot interferometer. The frequency spacing of longitudinal modes is proportional to the inverse of the cavity length with a prop...

D'Orazio, Daniel J; Schultz, Justin T; Sidor, Daniel; Best, Micheal; Goodfellow, Kenneth; Scholten, Robert E; White, James D; 10.1119/1.3299281

2010-01-01T23:59:59.000Z

347

A Measurement of the muon neutrino charged current quasielastic interaction and a test of Lorentz violation with the MiniBooNE experiment  

SciTech Connect

The Mini-Booster neutrino experiment (MiniBooNE) at Fermi National Accelerator Laboratory (Fermilab) is designed to search for {nu}{sub {mu}} {yields} {nu}{sub e} appearance neutrino oscillations. Muon neutrino charged-current quasi-elastic (CCQE) interactions ({nu}{sub {mu}} + n {yields} {mu} + p) make up roughly 40% of our data sample, and it is used to constrain the background and cross sections for the oscillation analysis. Using high-statistics MiniBooNE CCQE data, the muon-neutrino CCQE cross section is measured. The nuclear model is tuned precisely using the MiniBooNE data. The measured total cross section is {sigma} = (1.058 {+-} 0.003 (stat) {+-} 0.111 (syst)) x 10{sup -38} cm{sup 2} at the MiniBooNE muon neutrino beam energy (700-800 MeV). {nu}{sub e} appearance candidate data is also used to search for Lorentz violation. Lorentz symmetry is one of the most fundamental symmetries in modern physics. Neutrino oscillations offer a new method to test it. We found that the MiniBooNE result is not well-described using Lorentz violation, however further investigation is required for a more conclusive result.

Katori, Teppei; /Indiana U.

2008-12-01T23:59:59.000Z

348

The Uncertainties in the 22Ne + alpha-capture Reaction Rates and the Production of the Heavy Magnesium Isotopes in Asymptotic Giant Branch Stars of Intermediate Mass  

E-Print Network (OSTI)

We present new rates for the 22Ne(alpha, n)25Mg and 22Ne(alpha,gamma)26Mg reactions, with uncertainties that have been considerably reduced compared to previous estimates, and we study how these new rates affect the production of the heavy magnesium isotopes in models of intermediate mass Asymptotic Giant Branch (AGB) stars of different initial compositions. All the models have deep third dredge-up, hot bottom burning and mass loss. Calculations have been performed using the two most commonly used estimates of the 22Ne + alpha rates as well as the new recommended rates, and with combinations of their upper and lower limits. The main result of the present study is that with the new rates, uncertainties on the production of isotopes from Mg to P coming from the 22Ne + alpha-capture rates have been considerably reduced. We have therefore removed one of the important sources of uncertainty to effect models of AGB stars. We have studied the effects of varying the mass-loss rate on nucleosynthesis and discuss other uncertainties related to the physics employed in the computation of stellar structure, such as the modeling of convection, the inclusion of a partial mixing zone and the definition of convective borders. These uncertainties are found to be much larger than those coming from 22Ne + alpha-capture rates, when using our new estimates. Much effort is needed to improve the situation for AGB models.

A. Karakas; M. Lugaro; M. Wiescher; J. Goerres; C. Ugalde

2006-01-27T23:59:59.000Z

349

Recrystallization behavior of a supersaturated Al Mn alloy  

SciTech Connect

The effect of concurrent precipitation on recrystallization behavior during the isothermal annealing of a supersaturated and deformed Al-Mn alloy was investigated. It is found that concurrent precipitation strongly affects the recrystallization behavior of this alloy. At low temperatures, concurrent precipitation retards recrystallization and results in large flat grains. The size of recrystallized grains decreases significantly with increasing temperature. The kinetics of recrystallization was determined by measurements of hardness. The JMAK exponent decreases from 3.0 to 0.8 as the annealing temperature increases from 371 C to 427 C. The activation energy for recrystallization of the alloy is about 456 kJ/mol. Concurrent precipitation enhances the activation energy for recrystallization of aluminum alloys.

Radhakrishnan, Balasubramaniam [ORNL; Liu, W C [Yanshan University

2010-01-01T23:59:59.000Z

350

Metalloantibiotic Mn(II)-bacitracin complex mimicking manganese superoxide dismutase  

SciTech Connect

Superoxide dismutase (SOD) activities of various metallobacitracin complexes were evaluated using the riboflavin-methionine-nitro blue tetrazolium assay. The radical scavenging activity of various metallobacitracin complexes was shown to be higher than those of the negative controls, e.g., free transition metal ions and metal-free bacitracin. The SOD activity of the complex was found to be in the order of Mn(II) > Cu(II) > Co(II) > Ni(II). Furthermore, the effect of bacitracin and their complexation to metals on various microorganisms was assessed by antibiotic susceptibility testing. Moreover, molecular modeling and quantum chemical calculation of the metallobacitracin complex was performed to evaluate the correlation of electrostatic charge of transition metal ions on the SOD activity.

Piacham, Theeraphon [Department of Clinical Microbiology, Faculty of Medical Technology, Mahidol University, Bangkok 10700 (Thailand); Pure and Applied Biochemistry, Chemical Center, Lund University, P.O. Box 124, 22100 Lund (Sweden); Isarankura-Na-Ayudhya, Chartchalerm [Department of Clinical Microbiology, Faculty of Medical Technology, Mahidol University, Bangkok 10700 (Thailand); Nantasenamat, Chanin [Department of Clinical Microbiology, Faculty of Medical Technology, Mahidol University, Bangkok 10700 (Thailand); Yainoy, Sakda [Department of Clinical Microbiology, Faculty of Medical Technology, Mahidol University, Bangkok 10700 (Thailand); Ye Lei [Pure and Applied Biochemistry, Chemical Center, Lund University, P.O. Box 124, 22100 Lund (Sweden); Buelow, Leif [Pure and Applied Biochemistry, Chemical Center, Lund University, P.O. Box 124, 22100 Lund (Sweden); Prachayasittikul, Virapong [Department of Clinical Microbiology, Faculty of Medical Technology, Mahidol University, Bangkok 10700 (Thailand)]. E-mail: mtvpr@mucc.mahidol.ac.th

2006-03-24T23:59:59.000Z

351

9432 Alamo Ct NE, Blaine, MN 55449 (612) 625-0519(O) (505) 270-0316(C) dagao2008@gmail.com http://www-users.cs.umn.edu/dagao  

E-Print Network (OSTI)

and developed the test suite for the Culgi multiscale modeling software using Tcl/Tk and C++ #12;Idaho National

Minnesota, University of

352

File:USDA-CE-Production-GIFmaps-MO.pdf | Open Energy Information  

Open Energy Info (EERE)

MO.pdf MO.pdf Jump to: navigation, search File File history File usage Missouri Ethanol Plant Locations Size of this preview: 776 × 600 pixels. Full resolution ‎(1,650 × 1,275 pixels, file size: 377 KB, MIME type: application/pdf) Description Missouri Ethanol Plant Locations Sources United States Department of Agriculture Related Technologies Biomass, Biofuels, Ethanol Creation Date 2010-01-19 Extent State Countries United States UN Region Northern America States Missouri External links http://www.nass.usda.gov/Charts_and_Maps/Ethanol_Plants/ File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 16:16, 27 December 2010 Thumbnail for version as of 16:16, 27 December 2010 1,650 × 1,275 (377 KB) MapBot (Talk | contribs) Automated bot upload

353

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

SciTech Connect

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.

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

2011-06-01T23:59:59.000Z

354

Mo-6%Nb single crystal alloy creep strength demonstration for long life thermionic power systems  

DOE Green Energy (OSTI)

Experimental results of one- and two-dimensional creep testing for single crystal Mo-6%Nb alloy are presented. Three 1-D specimens were creep-tested for up to 3000 hours at 1873 to 1973 K and 5 to 15 MPa. One 2-D specimen tube was creep-tested for 2000 hours at 1873 K/15MPa. Results confirm the high creep strength of Mo-6%Nb for long life (10 to 15 year) TFE emitter application in thermionic space nuclear power systems. After the initial transition stage (about 1000 hours), quasi-steady state 1-D and 2-D creep rates were within 20% of each other suggesting little significant effect of anisotropy. More data points will be needed to define the Sherby-Dom parameters with statistical accuracy. {copyright} 1995 {ital American} {ital Institute} {ital of} {ital Physics}

Rhee, H.S.; Zheng, C.; Kent Koester, J. [Space Power, Inc., 621 River Oaks Parkway, San Jose, California 95134 (United States); Yastrebkov, A.; Nikolaev, Y.; Gontar, A. [Scientific Industrial Association Lutch, Podolsk, Moscow Region (Russian Federation)

1995-01-20T23:59:59.000Z

355

Interfacial studies of a thin-film Li2Mn4O9 electrode  

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

Interfacial studies of a thin-film Li2Mn4O9 electrode Interfacial studies of a thin-film Li2Mn4O9 electrode Title Interfacial studies of a thin-film Li2Mn4O9 electrode Publication Type Journal Article Year of Publication 1999 Authors Kostecki, Robert, Fanping Kong, Yoshiaki Matsuo, and Frank R. McLarnon Journal Electrochimica Acta Volume 45 Pagination 225-233 Keywords interfacial films, manganese oxide electrode Abstract A thin-film spinel Li2Mn4O9 electrode was prepared by spin coating onto a Pt substrate. Spectroscopic ellipsometry, X-ray diffraction and current-sensing atomic force microscopy (CSAFM) were used to characterize interfacial processes and film formation at this electrode in the presence of 1.0 M LiPF6, EC:DMC (1:1 by volume) electrolyte. Prolonged exposure of the film to the electrolyte at ambient temperature resulted in spontaneous decomposition of the spinel to λ-MnO2 without disruption of the original structure. The surface of the resulting λ-MnO2 film exhibited no significant change in morphology, however a thin passive electrode surface layer was detected by the CSAFM probe. This electrode surface layer exhibited insulating properties and most likely contained Li2O, a by-product of Li2Mn4O9 decomposition.

356

Ferromagnetism in Mn-Implanted Epitaxially Grown Ge on Si(100)  

SciTech Connect

We have studied ferromagnetism of Mn-implanted epitaxial Ge films on silicon. The Ge films were grown by ultrahigh vacuum chemical vapor deposition using a mixture of germane (GeH{sub 4}) and methylgermane (CH{sub 3}GeH{sub 3}) gases with a carbon concentration of less than 1 at. %, and observed surface rms roughness of 0.5 nm, as measured by atomic force microscopy. Manganese ions were implanted in epitaxial Ge films grown on Si (100) wafers to an effective concentration of 16, 12, 6, and 2 at. %. Superconducting quantum interference device measurements showed that only the three highest Mn concentration samples are ferromagnetic, while the fourth sample, with [Mn] = 2 at. %, is paramagnetic. X-ray absorption spectroscopy and x-ray magnetic circular dichroism measurements indicate that localized Mn moments are ferromagnetically coupled below the Curie temperature. Isothermal annealing of Mn-implanted Ge films with [Mn] = 16 at. % at 300 C for up to 1200 s decreases the magnetization but does not change the Curie temperature, suggesting that the amount of the magnetic phase slowly decreases with time at this anneal temperature. Furthermore, transmission electron microscopy and synchrotron grazing incidence x-ray diffraction experiments show that the Mn-implanted region is amorphous, and we believe that it is this phase that is responsible for the ferromagnetism. This is supported by our observation that high-temperature annealing leads to recrystallization and transformation of the material into a paramagnetic phase.

Guchhait, S.; Jamil, M.; Ohldag, H.; Mehta, A.; Arenholz, E.; Lian, G.; Li Fatou, A.; Ferrer, D. A.; Markert, J. T.; Colombo, L.; Banerjee, S. K.

2011-01-05T23:59:59.000Z

357

Energy Transfer Dynamics and Dopant Luminescence in Mn-Doped CdS/ZnS Core/Shell Nanocrystals  

E-Print Network (OSTI)

Mn-doped II-VI semiconductor nanocrystals exhibit bright dopant photoluminescence that has potential usefulness for light emitting devices, temperature sensing, and biological imaging. The bright luminescence comes from the 4T1?6A1 transition of the Mn2+ d electrons after the exciton-dopant energy transfer, which reroutes the exciton relaxation through trapping processes. The driving force of the energy transfer is the strong exchange coupling between the exciton and Mn2+ due to the confinement of exciton in the nanocrystal. The exciton-Mn spatial overlap affecting the exchange coupling strength is an important parameter that varies the energy transfer rate and the quantum yield of Mn luminescence. In this dissertation, this correlation is studied in radial doping location-controlled Mn-doped CdS/ZnS nanocrystals. Energy transfer rate was found decreasing when increasing the doping radius in the nanocrystals at the same core size and shell thickness and when increasing the size of the nanocrystals at a fixed doping radius. In addition to the exciton-Mn energy transfer discussed above, two consecutive exciton-Mn energy transfers can also occur if multiple excitons are generated before the relaxation of Mn (lifetime ~10^-4 - 10^-2 s). The consecutive exciton-Mn energy transfer can further excite the Mn2+ d electrons high in conduction band and results in the quenching of Mn luminescence. The highly excited electrons show higher photocatalytic efficiency than the electrons in undoped nanocrystals. Finally, the effect of local lattice strain on the local vibrational frequency and local thermal expansion was observed via the temperature-dependent Mn luminescence spectral linewidth and peak position in Mn-doped CdS/ZnS nanocrystals. The local lattice strain on the Mn2+ ions is varied using the large core/shell lattice mismatch (~7%) that creates a gradient of lattice strain at various radial locations. When doping the Mn2+ closer to the core/shell interface, the stronger lattice strain softens the vibrational frequency coupled to the 4T1?6A1 transition of Mn2+ (Mn luminescence) by ~50%. In addition, the lattice strain also increases the anharmonicity, resulting in larger local thermal expansion observed from the nearly an order larger thermal shift of the Mn luminescence compared to the Mn-doped ZnS nanocrystals without the core/shell lattice mismatch.

Chen, Hsiang-Yun

2012-12-01T23:59:59.000Z

358

Continuing investigations for technology assessment of /sup 99/Mo production from LEU (low enriched Uranium) targets  

SciTech Connect

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.

Vandergrift, G.F.; Kwok, J.D.; Marshall, S.L.; Vissers, D.R.; Matos, J.E.

1987-01-01T23:59:59.000Z

359

Production and Characterization of Atomized U-Mo Powder by the Rotating Electrode Process  

SciTech Connect

In order to produce feedstock fuel powder for irradiation testing, the Idaho National Laboratory has produced a rotating electrode type atomizer to fabricate uranium-molybdenum alloy fuel. Operating with the appropriate parameters, this laboratory-scale atomizer produces fuel in the desired size range for the RERTR dispersion experiments. Analysis of the powder shows a homogenous, rapidly solidified microstructure with fine equiaxed grains. This powder has been used to produce irradiation experiments to further test adjusted matrix U-Mo dispersion fuel.

C.R. Clark; B.R. Muntifering; J.F. Jue

2007-09-01T23:59:59.000Z

360

High strength Sn-Mo-Nb-Zr alloy tubes and method of making same  

DOE Patents (OSTI)

Tubes for use in nuclear reactors fabricated from a quaternary alloy comprising 2.5-4.0 wt% Sn, 0.5-1.5 wt% Mo, 0.5-1.5 wt% Nb, balance essentially Zr. The tubes are fabricated by a process of hot extrusion, heat treatment, cold working to size and age hardening, so as to produce a microstructure comprising elongated .alpha. grains with an acicular transformed .beta. grain boundary phase.

Cheadle, Brian A. (Deep River, CA)

1977-01-01T23:59:59.000Z

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


361

Electrical tuning of valley magnetic moment through symmetry control in bilayer MoS2  

SciTech Connect

Crystal symmetry governs the nature of electronic Bloch states. For example, in the presence of time-reversal symmetry, the orbital magnetic moment and Berry curvature of the Bloch states must vanish unless inversion symmetry is broken1. In certain two-dimensional electron systems such as bilayer graphene, the intrinsic inversion symmetry can be broken simply by applying a perpendicular electric field2,3. In principle, this offers the possibility of switching on/off and continuously tuning the magnetic moment and Berry curvature near the Dirac valleys by reversible electrical control4,5. Here we investigate this possibility using polarization-resolved photoluminescence of bilayer MoS2, which has the same symmetry as bilayer graphene but has a bandgap in the visible spectrum6,7 allowing direct optical probing5,8 12. We find that in bilayer MoS2 the circularly polarized photoluminescence can be continuously tuned from 15% to 15% as a function of gate voltage, whereas in structurally non-centrosymmetric monolayer MoS2 the photoluminescence polarization is gate independent. The observations are well explained as resulting from the continuous variation of orbital magnetic moments between positive and negative values through symmetry control.

Wu, Sanfeng [University of Washington, Seattle; Ross, Jason [University of Washington, Seattle; Liu, G. B. [University of Hong Kong, The; Aivazian, Grant [University of Washington, Seattle; Jones, Aaron [University of Washington, Seattle; Fei, Zaiyao [University of Washington, Dept Phys, Seattle, WA; Zhu, Wenguang [University of Tennessee, Knoxville (UTK); Xiao, Di [ORNL; Yao, Wang [University of Hong Kong, The; Cobden, David [University of Washington, Dept Phys, Seattle, WA; Xu, Xiaodong [University of Washington

2013-01-01T23:59:59.000Z

362

Ni6Cr5MoO18: A compensated half metal predicted from first-principles  

Science Conference Proceedings (OSTI)

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

Jing Wang; Ningning Zu; Zhijian Wu

2013-01-01T23:59:59.000Z

363

Ni spin switching induced by magnetic frustration in FeMn/Ni/Cu(001)  

SciTech Connect

Epitaxially grown FeMn/Ni/Cu(001) films are investigated by Photoemission Electron Microscopy and Magneto-Optic Kerr Effect. We find that as the FeMn overlayer changes from paramagnetic to antiferromagnetic state, it could switch the ferromagnetic Ni spin direction from out-of-plane to in-plane direction of the film. This phenomenon reveals a new mechanism of creating magnetic anisotropy and is attributed to the out-of-plane spin frustration at the FeMn-Ni interface.

Wu, J.; Choi, J.; Scholl, A.; Doran, A.; Arenholz, E.; Hwang, Chanyong; Qiu, Z. Q.

2009-03-08T23:59:59.000Z

364

Quantum Anomalous Hall Effect in Hg_1-yMn_yTe Quantum Wells  

SciTech Connect

The quantum Hall effect is usually observed when the two-dimensional electron gas is subjected to an external magnetic field, so that their quantum states form Landau levels. In this work we predict that a new phenomenon, the quantum anomalous Hall effect, can be realized in Hg{sub 1-y}Mn{sub y}Te quantum wells, without the external magnetic field and the associated Landau levels. This effect arises purely from the spin polarization of the Mn atoms, and the quantized Hall conductance is predicted for a range of quantum well thickness and the concentration of the Mn atoms. This effect enables dissipationless charge current in spintronics devices.

Liu, Chao-Xing; /Tsinghua U., Beijing /Stanford U., Phys. Dept.; Qi, Xiao-Liang; /Stanford U., Phys. Dept.; Dai, Xi; Fang, Zhong; /Beijing, Inst. Phys.; Zhang, Shou-Cheng; /Stanford U., Phys. Dept.

2010-03-19T23:59:59.000Z

365

Demonstration of molecular beam epitaxy and a semiconducting band structure for I-Mn-V compounds  

SciTech Connect

Our ab initio theory calculations predict a semiconducting band structure of I-Mn-V compounds. We demonstrate on LiMnAs that high-quality materials with group-I alkali metals in the crystal structure can be grown by molecular beam epitaxy. Optical measurements on the LiMnAs epilayers are consistent with the theoretical electronic structure. Our calculations also reproduce earlier reports of high antiferromagnetic ordering temperature and predict large, spin-orbit-coupling-induced magnetic anisotropy effects. We propose a strategy for employing antiferromagnetic semiconductors in high-temperature semiconductor spintronics.

Jungwirth, T. [Institute of Physics ASCR, v.v.i., Cukrovarnicka 10, 162 53 Praha 6 (Czech Republic); School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD (United Kingdom); Novak, V.; Cukr, M.; Zemek, J. [Institute of Physics ASCR, v.v.i., Cukrovarnicka 10, 162 53 Praha 6 (Czech Republic); Marti, X.; Horodyska, P.; Nemec, P.; Holy, V. [Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 3, 121 16 Prague 2 (Czech Republic); Maca, F.; Shick, A. B.; Masek, J.; Kuzel, P. [Institute of Physics ASCR, v.v.i., Na Slovance 2, 182 21 Praha 8 (Czech Republic); Nemec, I. [Faculty of Science, Charles University in Prague, Hlavova 2030, 128 40 Prague 2 (Czech Republic); Gallagher, B. L.; Campion, R. P.; Foxon, C. T. [School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD (United Kingdom); Wunderlich, J. [Institute of Physics ASCR, v.v.i., Cukrovarnicka 10, 162 53 Praha 6 (Czech Republic); Hitachi Cambridge Laboratory, Cambridge CB3 0HE (United Kingdom)

2011-01-15T23:59:59.000Z

366

Electrical properties of a-C:Mo films produced by dual-cathode filtered cathodic arc plasma deposition  

SciTech Connect

Molybdenum-containing amorphous carbon (a-C:Mo) thin films were prepared using a dual-cathode filtered cathodic arc plasma source with a molybdenum and a carbon (graphite) cathode. The Mo content in the films was controlled by varying the deposition pulse ratio of Mo and C. Film sheet resistance was measured in situ at process temperature, which was close to room temperature, as well as ex situ as a function of temperature (300-515 K) in ambient air. Film resistivity and electrical activation energy were derived for different Mo and C ratios and substrate bias. Film thickness was in the range 8-28 nm. Film resistivity varied from 3.55x10-4 Omega m to 2.27x10-6 Omega m when the Mo/C pulse ratio was increased from 0.05 to 0.4, with no substrate bias applied. With carbon-selective bias, the film resistivity was in the range of 4.59x10-2 and 4.05 Omega m at a Mo/C pulse ratio of 0.05. The electrical activation energy decreased from 3.80x10-2 to 3.36x10-4 eV when the Mo/C pulse ratio was increased in the absence of bias, and from 0.19 to 0.14 eV for carbon-selective bias conditions. The resistivity of the film shifts systematically with the amounts of Mo and upon application of substrate bias voltage. The intensity ratio of the Raman D-peak and G-peak (ID/IG) correlated with the pre-exponential factor (sigma 0) which included charge carrier density and density of states.

Sansongsiri, Sakon; Anders, Andre; Yodsombat, Banchob

2008-01-20T23:59:59.000Z

367

Anomalous Stoichiometry Layered Structure and Magnetic Ordering of the Prussian Blue Analog [NEt4]2MnII3(CN)8  

Science Conference Proceedings (OSTI)

Atypical of Prussian blue structured materials, Mn{sup II} and [NEt{sub 4}]CN react to form [NEt{sub 4}]{sub 2}Mn{sub 3}(CN){sub 8} possessing layers of octahedral [Mn{sup II}(CN){sub 6}]{sup 4-} bonded to two high-spin tetrahedral Mn{sup II} sites.

J Her; P Stephens; C Kareis; J Moore; J Miller

2011-12-31T23:59:59.000Z

368

Direct Total Cross Section Measurement of the 16O(?,?)20Ne Reaction at Ec.m. = 2.26 MeV  

Science Conference Proceedings (OSTI)

In stellar helium burning, (16)O represents the endpoint of the helium-burning sequence due to the low rate of (16)O(alpha,gamma)(20)Ne. We present a new direct measurement of the total capture reaction rate of (16)O(alpha,gamma)(20)Ne at E(c.m.) = 2.26MeV employing the DRAGON recoil separator. For the first time, the total S factor and its contributing direct capture transitions could be determined in one experiment.

Hager, Ulrike; Brown, James R.; Buchmann, Lothar R.; Carmona-Gallardo, Mariano; Erikson, Luke E.; Fallis, Jennifer S.; Greife, Uwe; Hutcheon, Dave; Ottewell, Dave; Ruiz, Chris; Sjue, Sky; Vockenhuber, Cristof

2011-08-23T23:59:59.000Z

369

TEM Characterization of U-7Mo/Al-2Si Dispersion Fuel Irradiated to Intermediate and High Fission Densities  

SciTech Connect

This paper will discuss the results of TEM analysis that was performed on two samples taken from the low flux and high flux sides of the fuel plate with U-7Mo fuel particles dispersed in U-2Si matrix. The corresponding local fission density of the fuel particles and the peak fuel plate centerline temperature between the low flux and high flux samples are 3.32 x 10{sup 27} f/m{sup 3} and 90 C, and 6.31 x 10{sup 27} f/m{sup 3} and 120 C, respectively. The results of this work showed the presence of a bubble superlattice within the U-7Mo grains that accommodated fission gases (e.g., Xe). The presence of this structure helps the U-7Mo exhibit a stable swelling behavior during irradiation. The Si-rich interaction layers that develop around the fuel particles at the U-7Mo/matrix interface during fuel plate fabrication and irradiation become amorphous during irradiation. The change in bubble distribution at the high fission density suggests that the bubble superlattice is stable as the U-7Mo matrix remains crystalline. It appears that there is a threshold Si content in the fuel particle above which the U-Mo turns to amorphous under irradiation. The threshold Si content is approximately 8 at.% and 4 at.% for low flux and high flux condition, respectively.

J. Gan; D.D. Keiser, Jr.; B.D. Miller; A.B. Robinson; J-F. Jue; P.G. Medvedev; D.M. Wachs

2012-05-01T23:59:59.000Z

370

REP&V TO ATTNJF: NE-23 SUWECC Commercial Facilities Used by National Lead Company of Ohio in Support  

Office of Legacy Management (LM)

REP&V TO REP&V TO ATTNJF: NE-23 SUWECC Commercial Facilities Used by National Lead Company of Ohio in Support 'of FMPC Operations TO: Robert E. Lynch Procuresnent and CorXracts Division, AD-42 Oak Ridge Operations Office The Division of Facility and Site Decormnissioning Projects (DFSP) is responsible for managing the Department's Formerly Utilized Sites Remedial Action Program (FUSRAP). The purposes of FUSRAP are (1) to identify facilities formerly operated for or by the Manhattan Engineer District (NED) and Atomic Energy Commission (AEC) which may have been radioactively contaminated as a result of these operations, (2) to determine if the facilities require remedial action, and (3) where DOE has authority, to conduct the remedial action. Authority for remedial action under FUSRAP is

371

REP&V TO ATTNOF: NE-23 SUBJECT: Commercial Facilities Used by National Lead Company of Ohio in Support  

Office of Legacy Management (LM)

x:Y" x:Y" . .' 3023 I\ \ 'a' '. Unita? -&&s Coverament , ,Q,.l. ),&, ,(>.. Department of Energy riGmorandum / d6a 2/. $3 DATE: JL(L 2 8 ;;$5 co. /3 .-J/ co,/3 REP&V TO ATTNOF: NE-23 SUBJECT: Commercial Facilities Used by National Lead Company of Ohio in Support of FMPC Operations TO: Robert E. Lynch Procuremnent and Contracts Division, AD-42 Oak Ridge Operations Office The Division of Facility and Site Decommissioning Projects (DFSD) is responsible for managing the Department's Formerly Utilized Sites Remedial Action Program (FuSRAP). The purposes of FUSRAP are (1) to identify facilities formerly operated for or by the Manhattan Engineer District (NED) and Atomic Energy Commission (AEC) which may have been radioactively contaminated as a result of these operations, (2) to determine if the

372

35 COFibE, Series A. U. S. ATOXIC ENERGY CCMMISSION r'C Cj NE# YORK OPERATIONS OFFICE  

Office of Legacy Management (LM)

COFibE, Series A. COFibE, Series A. - U. S. ATOXIC ENERGY CCMMISSION r'C Cj NE# YORK OPERATIONS OFFICE HEkLTH AND SAFETY DIVISION (Merril Eicsnbud, Dirsator) MONTHLY REPORT OF FIELD ACTIVITIES (This report%v,rs%~~~nth period) Indusorial Ii~iene Branoh m a . . 0 . . c . . . o W. B. Harris, Chief Radiation Branch . y y e 0e . e . e . . . . e . . . Hanson Blatz, Chief Fi:e and Accident Branch D e a o o . . . ..s . . B. J. Kehoe, Chief Medical Advioer, Dr. J. A. Quiglsy Siometrician, Dr. A. E. Brandt TABLF OF COEpTmS PRODUCTION COWTRACTORS ._ Feed Nabrlals Production Centor '$iiddlcsexSampling Plnnt Harshaw ChuoicalCompa~ Wlin&rodt Chen!icrl Works tie. Ontario Storage Area b Vit*o Mnufacturing CompaW B4ikhem Steel F'lrnt - IpcknuMnr Clifton Roducts CompvIy Drush Bcx@.Uun~ Company - Luckcy

373

100- The Effect of Mn and Pr Co-Doping on Electrical Properties of ...  

Science Conference Proceedings (OSTI)

144- The Role of Mn Content on Microstructure and Phases of High Alloyed White Cast Irons 145- The Synergy of XRD and XRF in a Shale and Slate Analysis.

374

Characterization of LiNi?.?Mn?.?O? Thin Film Cathode Prepared by Pulsed Laser Deposition  

E-Print Network (OSTI)

LiNi?.?Mn?.?O? thin films have been grown by pulsed laser deposition (PLD) on stainless steel (SS) substrates. The crystallinity and structure of thin films were investigated by X-ray diffraction (XRD). Microstructure and ...

Xia, Hui

375

D11: Thermodynamic and Electrochemical Properties of the Mg-Mn ...  

Science Conference Proceedings (OSTI)

B7: Synthesis and Electrical Properties of K2NiF4-Type (Ca2-xLnx)MnO4 (Ln=Nd and Sm) B8: Monitoring Oxygen Diffusion in Gd-Doped Ceria by Null...

376

Mn solid solutions in self-assembled Ge/Si (001) quantum dot heterostructures  

SciTech Connect

Heteroepitaxial Ge{sub 0.98}Mn{sub 0.02} quantum dots (QDs) on Si (001) were grown by molecular beam epitaxy. The standard Ge wetting layer-hut-dome-superdome sequence was observed, with no indicators of second phase formation in the surface morphology. We show that Mn forms a dilute solid solution in the Ge quantum dot layer, and a significant fraction of the Mn partitions into a sparse array of buried, Mn-enriched silicide precipitates directly underneath a fraction of the Ge superdomes. The magnetic response from the ultra-thin film indicates the absence of robust room temperature ferromagnetism, perhaps due to anomalous intermixing of Si into the Ge quantum dots.

Kassim, J.; Nolph, C.; Reinke, P.; Floro, J. [Department of Materials Science and Engineering, University of Virginia, Charlottesville, Virginia 22904 (United States); Jamet, M. [Institut Nanosciences et Cryogenie/SP2M, CEA-UJF, F-38054 Grenoble (France)

2012-12-10T23:59:59.000Z

377

Synthesis, characterization, and microwave-absorbing properties of polypyrrole/MnFe2O4 nanocomposite  

Science Conference Proceedings (OSTI)

Conductive polypyrrole (PPy)-manganese ferrite (MnFe2O4) nanocomposites with core-shell structure were synthesized by in situ polymerization in the presence of dodecyl benzene sulfonic acid (DBSA) as the surfactant and dopant and ...

Seyed Hossein Hosseini; Ahmad Asadnia

2012-01-01T23:59:59.000Z

378

Aliovalent titanium substitution in layered mixed Li Ni-Mn-Co oxides for lithium battery applications  

Science Conference Proceedings (OSTI)

Improved electrochemical characteristics are observed for Li[Ni1/3Co1/3-yMyMn1/3]O2 cathode materials when M=Ti and ycapacity.

Kam, Kinson; Doeff, Marca M.

2010-12-01T23:59:59.000Z

379

Electrophysical properties of semimagnetic solid solutions Hg 1?x Mn x Te  

Science Conference Proceedings (OSTI)

A comprehensive study of the electrophysical properties of the semimagnetic ternary solid solution Hg 1?x Mn x Te an alternative material to Hg 1?x Cd x Te is reported. The charge-carrier scattering

I. M. Nesmelova; V. N. Ryzhkov; M. I. Ibragimova; V. Yu. PetukhovKazan Physicotechnical Institute, Kazan Research Center of the Russian Academy of Sciences, Kazan?420029, Russia

2004-01-01T23:59:59.000Z

380

Spin current switching and spin-filtering effects in Mn-doped boron nitride nanoribbons  

Science Conference Proceedings (OSTI)

The spin transport properties are investigated by means of the first principle approach for boron nitride nanoribbons with one or two substitutional Mn impurities, connected to graphene electrodes. The spin current polarization is evaluated using the ...

G. A. Nemnes

2012-01-01T23:59:59.000Z

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


381

Mn Monolayer Modified Rh for Syngas-to-Ethanol Conversion: A First-Principles Study  

SciTech Connect

Rh is unique in its ability to convert syngas to ethanol with the help of promoters. We performed systematic first-principles computations to examine the catalytic performance of pure and Mn modified Rh(100) surfaces for ethanol formation from syngas. CO dissociation on the surface as well as CO insertion between the chemisorbed CH{sub 3} and the surface are the two key steps. The CO dissociation barrier on the Mn monolayer modified Rh(100) surface is remarkably lowered by {approx}1.5 eV compared to that on Rh(100). Moreover, the reaction barrier of CO insertion into the chemisorbed CH{sub 3} group on the Mn monolayer modified Rh(100) surface is 0.34 eV lower than that of methane formation. Thus the present work provides new mechanistic insight into the role of Mn promoters in improving Rh's selectivity to convert syngas to ethanol.

Li, Fengyu [University of Puerto Rico; Jiang, Deen [ORNL; Zeng, X.C. [University of Nebraska, Lincoln; Chen, Zhongfang [University of Puerto Rico

2012-01-01T23:59:59.000Z

382

Southwest MN IPM STUFF All the pestilence that's fit to print  

E-Print Network (OSTI)

and soybeans during hot dry weather. Twospotted spider mites are favored by high temperatures and drought Southwest Research and Outreach Center 23669 130th Street Lamberton, MN 56152 Phone: 507.752.5066 Cell: 507

Amin, S. Massoud

383

Southwest MN IPM STUFF All the pestilence that's fit to print  

E-Print Network (OSTI)

started to show up. This could be a bad year for this disease. Cool wet spring and hot, dry late seasons Research and Outreach Center 23669 130th Street Lamberton, MN 56152 Phone: 507.752.5066 Cell: 507

Amin, S. Massoud

384

Formation of nano-crystalline todorokite from biogenic Mn Xiong Han Feng a,1  

E-Print Network (OSTI)

Formation of nano-crystalline todorokite from biogenic Mn oxides Xiong Han Feng a,1 , Mengqiang Zhu oxides in the environment. Additionally this method may be a viable biosynthesis route for porous, nano

Sparks, Donald L.

385

Mkha' 'gro dbang mo'i rnam that, the biography of the gter ston ma bde chen chos kyi dbang mo (1868-1927?)  

E-Print Network (OSTI)

, for example, A 'dzom 'Brug pa 'Gro 'dul dPa' bo rDo rje (1842-1924), a famous rdzogs chen master and treasure revealer (see Namkhai 1986, p. 153), who bestowed upon her a long life empowerment when she was 26 (1893); see dBang mo'i rnam thar, p. 824, passim... , Kvrne and Nagano eds., 2003, p. 323), gCod, A khrid (see Kvrne and Rikey, 1996), Phur pa (see Bon Kanjur, op.cit., pp. 295-297), rDzogs chen Yang rtse Klong chen (Sherab Wangyal, TBMC, New Delhi, 1973), Khro bo rGyud drug gSang ba bSen thub (see Bon...

Rossi, Donatella

2008-01-01T23:59:59.000Z

386

Using the X-FEL to photo-pump X-ray laser transitions in He-like Ne  

SciTech Connect

Nearly four decades ago H-like and He-like resonantly photo-pumped laser schemes were proposed for producing X-ray lasers. However, demonstrating these schemes in the laboratory has proved to be elusive because of the difficulty of finding a strong resonant pump line. With the advent of the X-ray free electron laser (X-FEL) at the SLAC Linac Coherent Light Source (LCLS) we now have a tunable X-ray laser source that can be used to replace the pump line in previously proposed laser schemes and allow researchers to study the physics and feasibility of resonantly photo-pumped laser schemes. In this paper we use the X-FEL at 1174 eV to photo-pump the singly excited 1s2p state of He-like Ne to the doubly excited 2p3p state and model gain on the 2p3p-2p2s transition at 175 eV and the 2p3p-1s3p transition at 1017 eV. One motivation for studying this scheme is to explore possible quenching of the gain due to strong non-linear coupling effects from the intense X-FEL beam We compare this scheme with photo-pumping the He-like Ne ground state to the 1s3p singly excited state followed by lasing on the 3p-2s and 3d-2p transitions at 158 and 151 eV. Experiments are being planned at LCLS to study these laser processes and coherent quantum effects.

Nilsen, J; Rohringer, N

2011-08-30T23:59:59.000Z

387

A practical grinding-assisted dry synthesis of nanocrystalline NiMoO{sub 4} polymorphs for oxidative dehydrogenation of propane  

Science Conference Proceedings (OSTI)

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.

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

388

Building of a Novel Mn12 Single Molecule Magnet by Assembly of Anisotropic  

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

Building of a Novel Mn12 Single Building of a Novel Mn12 Single Molecule Magnet by Assembly of Anisotropic Triangles Building of a Novel Mn12 Single Molecule Magnet by Assembly of Anisotropic Triangles Print Wednesday, 06 July 2011 12:58 Assembly of triangular {MnIII3(O)(salox)3}+ fragments mediated by azido ligands, results in the dodecanuclear [Mn12O4(salox)12(N3)4(MeOH)4(H2O)2] complex with S = 8 ground state and SMM response. After the discovery of the Single-Molecule-Magnet (SMM) behaviour of [Mn6(O)2(salox)6(R-COO)2] (salox = salicylaldoxime, R = Me, Ph) complexes in 2004,1 the chemistry of this family of [Mn6] clusters has been studied in depth: the systematic change of the carboxylato ligands, the study of substitutedR-saloxH2 related ligands,2 the effect of variation of the oxidation state,3 the response under pressure4 or the one-dimensional assembly of [Mn6] units into chains of clusters5 with Single-Chain-Magnet behaviour in some cases,5c,d turn this system into one of the best known in the SMM field. One of the main goals of this work, developed by Brechin et al. has been to modulate the value of the ground spin level, reaching the maximum possible spin S = 12 by means of the adequate choice of methyl or ethyl substituted salicylaldoximes and the understanding of the structural features that control the coupling inside the triangles. Article Link (PDF)

389

NEUTRON DIFFRACTION STUDY OF A NON-STOICHIOMETRIC Ni-Mn-Ga MSM ALLOY  

SciTech Connect

The structure and chemical order of a Heusler alloy of non-stoichiometric composition Ni-Mn-Ga were studied using constant-wavelength (1.538 ) neutron diffraction at 363K and the diffraction pattern was refined using the FullProf software. At this temperature the structure is austenite (cubic) with Fm-3m space group and lattice constant of a = 5.83913(4) [ ]. The chemical order is of critical importance in these alloys, as Mn becomes antiferromagnetic when the atoms are closer than the radius of the 3d shell. In the studied alloy the refinement of the site occupancy showed that the 4b (Ga site) contained as much as 22% Mn; that significantly alters the distances between the Mn atoms in the crystal and, as a result, also the exchange energy between some of the Mn atoms. Based on the refinement, the composition was determined to be Ni1.91Mn1.29Ga0.8

Ari-Gur, Pnina [Western Michigan University; Garlea, Vasile O [ORNL

2013-01-01T23:59:59.000Z

390

MO: ZL  

Office of Legacy Management (LM)

Tonawanda, New York," May 1978 (DOEEV-00056). 2. "Radiological Survey of the Ashland Oil Co. (Former Waist Property), Tonewanda, Kew York," May 1978 (DOEEV-00054). 3....

391

Mo Zhou  

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

and regional government on appliance standard achievement; evaluate the social impact of appliance labeling program; and analysis of appliance price trend and learning rate to...

392

Stability and Lifetime of K-CoMoSx Mixed Alcohol Catalysts  

SciTech Connect

Researchers have studied sulfide-type catalysts for the production of mixed alcohols from synthesis gas for several decades. Despite many advances in the art, these processes are not yet commercial, due in large part to mediocre economics and the added risk associated with uncertainty in catalyst lifetime. This talk will outline some recent studies in the lifetime and stability of K-CoMoSx-type mixed alcohol catalysts. Specifically, studies of long term operation (> 3000h), sulfiding agents, simulated methanol recycle, and morphology (probed via XRD and XPS) will be discussed, with the conclusion that these materials are likely to exhibit acceptable lifetimes in continuous operation.

Hensley, J. E.; Ruddy, D.; Schaidle, J.; Ferrell, J.; Thibodeaux, J.

2013-01-01T23:59:59.000Z

393

FULL SIZE U-10MO MONOLITHIC FUEL FOIL AND FUEL PLATE FABRICATION-TECHNOLOGY DEVELOPMENT  

Science Conference Proceedings (OSTI)

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.

G. A. Moore; J-F Jue; B. H. Rabin; M. J. Nilles

2010-03-01T23:59:59.000Z

394

Beta-decay properties of Zr and Mo neutron-rich isotopes  

E-Print Network (OSTI)

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.

Sarriguren, P

2010-01-01T23:59:59.000Z

395

Effects of laser irradiation on the self-assembly of MnAs nanoparticles in a GaAs matrix  

SciTech Connect

We investigate the effects of laser irradiation on the self-assembly of MnAs nanoparticles during solid-phase decomposition in a GaAs matrix. It is found that laser irradiation suppresses the growth of MnAs nanoparticles from small to large size, and that the median diameter D{sub 1} in the size distribution of small MnAs nanoparticles depends on the incident photon energy E following D{sub 1} {approx} E{sup -1/5}. We explain this behavior by the desorption of Mn atoms on the MnAs nanoparticle surface due to resonant optical absorption, in which incident photons excite intersubband electronic transitions between the quantized energy levels in the MnAs nanoparticles.

Hai, Pham Nam; Nomura, Wataru [Department of Electrical Engineering and Information Systems, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Yatsui, Takashi; Ohtsu, Motoichi; Tanaka, Masaaki [Department of Electrical Engineering and Information Systems, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Nanophotonics Research Center, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)

2012-11-05T23:59:59.000Z

396

Magnetic field-induced phase transformation and variant reorientation in Ni2MnGa and NiMnCoIn magnetic shape memory alloys  

E-Print Network (OSTI)

The purpose of this work is to reveal the governing mechanisms responsible for the magnetic field-induced i) martensite reorientation in Ni2MnGa single crystals, ii) stress-assisted phase transformation in Ni2MnGa single crystals and iii) phase transformation in NiMnCoIn alloys. The ultimate goal of utilizing these mechanisms is to increase the actuation stress levels in magnetic shape memory alloys (MSMAs). Extensive experimental work on magneto-thermo-mechanical (MTM) characterization of these materials enabled us to i) better understand the ways to increase the actuation stress and strain and decrease the required magnetic field for actuation in MSMAs, ii) determine the effects of main MTM parameters on reversible magnetic field induced phase transformation, such as magnetocrystalline anisotropy energy (MAE), Zeeman energy (ZE), stress hysteresis, thermal hysteresis, critical stress for the stress induced phase transformation and crystal orientation, iii) find out the feasibility of employing polycrystal MSMAs, and iv) formulate a thermodynamical framework to capture the energetics of magnetic field-induced phase transformations in MSMAs. Magnetic shape memory properties of Ni2MnGa single crystals were characterized by monitoring magnetic field-induced strain (MFIS) as a function of compressive stress and stress-induced strain as a function of magnetic field. It is revealed that the selection of the operating temperature with respect to martensite start and Curie temperatures is critical in optimizing actuator performance. The actuation stress of 5 MPa and work output of 157 kJm?3 are obtained by the field-induced variant reorientation in NiMnGa alloys. Reversible and one-way stress-assisted field-induced phase transformations are observed in Ni2MnGa single crystals under low field magnitudes (transformation and shape memory characteristics of NiMnCoIn single crystals are also studied. Reversible field-induced phase transformation is observed only under high magnetic fields (>4T). Necessary magnetic and mechanical conditions, and materials design and selection guidelines are proposed to search for field-induced phase transformation in other ferromagnetic materials that undergo thermoelastic martensitic phase transformation.

Karaca, Haluk Ersin

2007-08-01T23:59:59.000Z

397

Properties of Ga{sub 1-x}Mn{sub x}As with high x (>0.1)  

SciTech Connect

We have investigated the magnetic and the crystalline properties of a set of Ga{sub 1-x}Mn{sub x}As layers with high nominal Mn compositions (x=0.101-0.198). Magnetization measurements and combined channeling Rutherford backscattering (c-RBS) and particle induced x-ray emission (c-PIXE) measurements have been performed to determine the effective Mn composition x{sub eff} and the fraction of Mn atoms at various lattice sites. Here, x{sub eff} determined from magnetization measurements, which increases with increasing x, is consistent with the results determined from c-RBS-PIXE measurements.

Chiba, D. [Semiconductor Spintronics Project, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Sendai 980-0023 (Japan); Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577 (Japan); Yu, K. M.; Walukiewicz, W. [Electronic Materials Program, Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94549 (United States); Nishitani, Y. [Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577 (Japan); Matsukura, F.; Ohno, H. [Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577 (Japan); Semiconductor Spintronics Project, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Sendai 980-0023 (Japan)

2008-04-01T23:59:59.000Z

398

Mn-Stabilized Zirconia: From Imitation Diamonds to a New Potential High-T{sub C} Ferromagnetic Spintronics Material  

SciTech Connect

From the basis of ab initio electronic structure calculations which include the effects of thermally excited magnetic fluctuations, we predict Mn-stabilized cubic zirconia to be ferromagnetic above 500 K. We find this material, which is well known both as an imitation diamond and as a catalyst, to be half-metallic with the majority and minority spin Mn impurity states lying in zirconia's wide gap. The Mn concentration can exceed 40%. The high-T{sub C} ferromagnetism is robust to oxygen vacancy defects and to how the Mn impurities are distributed on the Zr fcc sublattice. We propose this ceramic as a promising future spintronics material.

Ostanin, S. [Max-Planck-Institut fuer Mikrostrukturphysik, Weinberg 2, D-06120 Halle (Saale) (Germany); Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom); Ernst, A.; Sandratskii, L. M.; Bruno, P. [Max-Planck-Institut fuer Mikrostrukturphysik, Weinberg 2, D-06120 Halle (Saale) (Germany); Daene, M.; Hergert, W.; Mertig, I. [Martin-Luther-Universitaet Halle-Wittenberg, Fachbereich Physik, D-06099 Halle (Germany); Hughes, I. D.; Staunton, J. B. [Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom); Kudrnovsky, J. [Max-Planck-Institut fuer Mikrostrukturphysik, Weinberg 2, D-06120 Halle (Saale) (Germany); Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, CZ-18221 Prague 8 (Czech Republic)

2007-01-05T23:59:59.000Z

399

Magnetic order near 270 K in mineral and synthetic Mn 2 FeSbO 6 ilmenite  

Science Conference Proceedings (OSTI)

The structural and magnetic properties of Mn 2 FeSbO 6 single-crystalline mineral and ceramic samples synthesized under thermobaric treatment have been investigated

R. Mathieu; S. A. Ivanov; G. V. Bazuev; M. Hudl; P. Lazor; I. V. Solovyev; P. Nordblad

2011-01-01T23:59:59.000Z

400

Flexible Zn2SnO4/MnO2 Core/Shell Nanocable-Carbon Microfiber ...  

Science Conference Proceedings (OSTI)

Presentation Title, Flexible Zn2SnO4/MnO2 Core/Shell Nanocable-Carbon Microfiber Hybrid Composites for High-Performance Supercapacitor Electrodes.

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


401

Properties of DU-10wt%Mo Alloys Subjected to Various Post-Rolling Heat Treatments  

Science Conference Proceedings (OSTI)

Mechanical properties of depleted uranium-molybdenum (U-Mo) alloys subjected to different post-processing treatments have been obtained using microhardness, quasi-static tensile tests, and scanning electron microscopy failure analysis. U-Mo alloy foils are currently under investigation for potential fuel conversion of high power research reactors to low enriched uranium fuel. Although mechanical properties take on a secondary effect during irradiation, an understanding of the alloy behavior during fabrication and the effects of irradiation on the integrity of the fuel is essential. In general, the microhardness was insensitive to annealing temperature but decreased with annealing duration. Yield strength, Youngs modulus and ultimate tensile strength improved with both increasing annealing temperature and duration. The failure mode was also insensitive to annealing conditions, but was significantly controlled by the impurity concentration of the alloy, especially carbon. Values obtained from literature are also provided with reasonable agreement based on extrapolation of annealing duration, even though processing conditions and applications were quite different in some instances.

Douglas E. Burkes; Ramprashad Prabhakaran; Thomas Hartmann; Jan-Fong Jue; Francine J. Rice

2010-06-01T23:59:59.000Z

402

Development and processing of LEU targets for {sup 99}Mo production  

SciTech Connect

Most of the world`s supply of {sup 99m}Tc for medical purposes is currently produced from the decay of {sup 99}Mo derived from the fissioning of high-enriched uranium (HEU). Substantial progress has been made in developing targets and chemical processes for producing {sup 99}Mo using low-enriched uranium (LEU). Target development has been focused on a uranium-metal foil target as a replacement for the coated-UO{sub 2} Cintichem-type target. Although the first designs were not successful because of ion mixing-induced bonding of the uranium foil to the target tubes, recent irradiations of modified targets have proven successful. Only minor modifications of the Cintichem chemical process are required for the uranium-metal foil targets. A demonstration using prototypically irradiated targets is anticipated in February 1997. Progress has also been made in basic dissolution of both uranium-metal foil and aluminum-clad U{sub 3}Si{sub 2} dispersion fuel targets.

Snelgrove, J.L.; Vandegrift, G.F.; Hofman, G.L.

1997-04-01T23:59:59.000Z

403

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

SciTech Connect

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

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

1984-01-01T23:59:59.000Z

404

Experimental study of the electric dipole strength in the even Mo nuclei and its deformation dependence  

E-Print Network (OSTI)

Two methods based on bremsstrahlung were applied to the stable even Mo isotopes for the experimental determination of the photon strength function covering the high excitation energy range above 4 MeV with its increasing level density. Photon scattering was used up to the neutron separation energies Sn and data up to the maximum of the isovector giant resonance(GDR) were obtained by photo-activation. After a proper correction for multi-step processes the observed quasi-continuous spectra of scattered photons show a remarkably good match to the photon strengths derived from nuclear photo effect data obtained previously by neutron detection and corrected in absolute scale using the new activation results. The combined data form an excellent basis to derive a shape dependence of the E1 strength in the even Mo isotopes with increasing deviation from the N = 50 neutron shell, i.e. with the impact of quadrupole deformation and triaxiality. The wide energy coverage of the data allows for a stringent assessment of the dipole sum-rule, and a test of a novel parameterization developed previously which is based upon. This parameterization for the electric dipole strength function in nuclei with A>80 deviates significantly from prescriptions generally used previously. In astrophysical network calculations it may help to quantify the role the p-process plays in the cosmic nucleosynthesis. It also has impact on the accurate analysis of neutron capture data of importance for future nuclear energy systems and waste transmutation.

M. Erhard; A. R. Junghans; C. Nair; R. Schwengner; R. Beyer; J. Klug; K. Kosev; A. Wagner; E. Grosse

2010-01-21T23:59:59.000Z

405

Thermal shock behavior of alumina/MoSi2 plasma sprayed laminated composites  

Science Conference Proceedings (OSTI)

Alumina (Al{sub 2}O{sub 3}) is very susceptible to thermal shock, which leads to strength degradation. By reinforcing Al{sub 2}O{sub 3} with molybdenum disilicide (MoSi{sub 2}) layers, the tolerance to damage caused by thermal shock can be improved. The thermal shock resistance of plasma sprayed Al{sub 2}O{sub 3}/MoSi{sub 2} laminated composites were investigated. Three laminate microstructures having different layer thickness were fabricated by atmospheric plasma spraying while maintaining a 50/50-volume fraction. Quenching experiments done on 4-point bend bars showed a gradual decrease in the strength as the change in temperature ({Delta}T) increased. Thermal shock resistant parameters (R{prime} and R-quadruple prime) provided a representative numerical value of the thermal shock resistance for the laminated composites. The corresponding material properties for the different microstructures were determined experimentally in order to calculate the R{prime} and R quadruple prime values. The intermediate layered composite showed the highest R-quadruple prime va1ue at 1061 {micro}m, while the thin layered composite had the highest R{prime} value at 474 W/m.

Castro, R. G. (Richard G.); Petrovic, J. J.; Vaidya, R. U. (Rajendra U.); Mendoza, D. (Daniel)

2001-01-01T23:59:59.000Z

406

/sup 238/PuO/sub 2//Mo-50 wt% Re compatibility at 800 and 1000/sup 0/C  

DOE Green Energy (OSTI)

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/.

Schaeffer, D.R.; Teaney, P.E.

1980-07-18T23:59:59.000Z

407

Novel Solar Energy Conversion Materials by Design of Mn(II) Oxides  

Science Conference Proceedings (OSTI)

Solar energy conversion materials need to fulfill simultaneously a number of requirements in regard of their band-structure, optical properties, carrier transport, and doping. Despite their desirable chemical properties, e.g., for photo-electrocatalysis, transition-metal oxides usually do not have desirable semiconducting properties. Instead, oxides with open cation d-shells are typically Mott or charge-transfer insulators with notoriously poor transport properties, resulting from large effective electron/hole masses or from carrier self-trapping. Based on the notion that the electronic structure features (p-d interaction) supporting the p-type conductivity in d10 oxides like Cu2O and CuAlO2 occurs in a similar fashion also in the d5 (high-spin) oxides, we recently studied theoretically the band-structure and transport properties of the prototypical binary d5 oxides MnO and Fe2O3 [PRB 85, 201202(R)]. We found that MnO tends to self-trap holes by forming Mn+III, whereas Fe2O3 self-traps electrons by forming Fe+II. However, the self-trapping of holes is suppressed by when Mn is tetrahedrally coordinated, which suggests specific routes to design novel solar conversion materials by considering ternary Mn(II) oxides or oxide alloys. We are presenting theory, synthesis, and initial characterization for these novel energy materials.

Lany, S.; Peng, H.; Ndione, P.; Zakutayev, A.; Ginley, D. S.

2013-01-01T23:59:59.000Z

408

Carbon/lambda-MnO{sub 2} composites for supercapacitor electrodes  

Science Conference Proceedings (OSTI)

In the present work a composite of carbon with lambda-MnO{sub 2} have been synthesized by a simple two-step route. In the first step, to obtain LiMn{sub 2}O{sub 4}/carbon material, mesoporous activated carbon was impregnated with the solution of precursor metal salts and heated subsequently. As-prepared materials were acid treated which resulted in the formation of lambda-MnO{sub 2}/carbon. Physical properties, structure and specific surface area of electrode materials were studied by TEM, X-ray diffraction and nitrogen sorption measurements. Voltammetry cycling, galvanostatic charge/discharge and impedance spectroscopy measurements performed in two- and three-electrode cells have been applied in order to measure electrochemical parameters. TEM images confirmed well dispersed lambda-MnO{sub 2} particles on the surface of carbon material. The carbon in the composite plays an important role as the surface area enhancing component and a support of pseudocapacitive material. Furthermore, the through-connected porosity serves as a continuous pathway for electrolyte transport. A synergetic effect of the porous carbon framework and of the redox properties of the lambda-MnO{sub 2} is at the origin of improvement of specific capacitance values which has been observed for composites after delithiation. - Comparison of capacitance characteristics for initial carbon and synthesised composites for CB in 1 mol L{sup -1} Na{sub 2}SO{sub 4} solution.

Malak-Polaczyk, A., E-mail: agnieszka-malak@wp.p [Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Piotrowo 3, 60-695 Poznan (Poland); Institut de Sciences des Materiaux de Mulhouse, CNRS LRC 7228, 15 Rue Starcky, 68057 Mulhouse (France); Matei-Ghimbeu, C.; Vix-Guterl, C. [Institut de Sciences des Materiaux de Mulhouse, CNRS LRC 7228, 15 Rue Starcky, 68057 Mulhouse (France); Frackowiak, E. [Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Piotrowo 3, 60-695 Poznan (Poland)

2010-04-15T23:59:59.000Z

409

High-Resolution Structure of the Photosynthetic Mn4Ca Catalyst from X-ray Spectroscopy  

Science Conference Proceedings (OSTI)

The application of high-resolution X-ray spectroscopy methods to study the photosynthetic water oxidizing complex, which contains a unique hetero-nuclear catalytic Mn4Ca cluster, are described. Issues of X-ray damage especially at the metal sites in the Mn4Ca cluster are discussed. The structure of the Mn4Ca catalyst at high-resolution which has so far eluded attempts of determination by X-ray diffraction, EXAFS and other spectroscopic techniques has been addressed using polarized EXAFS techniques applied to oriented PS II membrane preparations and PS II single crystals. A review of how the resolution of traditional EXAFS techniques can be improved, using methods such as range-extended EXAFS is presented, and the changes that occur in the structure of the cluster as it advances through the catalytic cycle are described. X-ray absorption and emission techniques (XANES and K? emission) have been used earlier to determine the oxidation states of the Mn4Ca cluster, and in this report we review the use of X-ray resonant Raman spectroscopy to understand the electronic structure of the Mn4Ca cluster as it cycles through the intermediate S-states.

Yachandra, Vittal; Yano, Junko; Kern, Jan; Pushkar, Yulia; Sauer, Kenneth; Glatzel, Pieter; Bergmann, Uwe; Messinger, Johannes; Zouni, Athina; Yachandra, Vittal K.

2007-08-01T23:59:59.000Z

410

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

Science Conference Proceedings (OSTI)

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

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

2006-09-01T23:59:59.000Z

411

PETROPHYSICAL INVESTIGATION OF THE SECONDARY RECOVERY POTENTIAL IN THE CHERRY CANYON FORMATION NE LEA FIELD LEA COUNTY, NEW MEXICO  

Science Conference Proceedings (OSTI)

Read and Stevens has proposed the evaluation of the waterflood potential from the Cherry Canyon formation in the NE Lea Field in lea County, New Mexico. Much of the development in this area is approaching primary recovery limitations; additional recovery of remaining oil reserves by waterflood needs to be evaluated. The Cherry Canyon formation is composed of fine grained sandstone, containing clay material which results in high water saturation, and also has the tendency to swell and reduce reservoir permeability--the ability of fluid to flow through the rock pores and fractures. There are also abundant organic materials that interfere with obtaining reliable well logs. These complications have limited oil in place calculations and identification of net pay zones, presenting a challenge to the planned waterflood. Core analysis of the Cherry Canyon should improve the understanding of existing well logs and possibly indicate secondary recovery measures, such as waterflood, to enhance field recovery. Lacking truly representative core to provide accurate analyses, Read and Stevens will obtain and preserve fresh core. The consulting firm of T. Scott Hickman and Associates will then collaborate on special core analyses and obtain additional well logs for a more detailed analysis of reservoir properties. The log interpretation will be compared to the core analysis results, and the entire collected data set will be used to assess the potential and economic viability of successfully waterflooding the identified oil zones. Successful results from the project will improve accuracy of log interpretation and establish a methodology for evaluating secondary recovery by waterflood.

T. Scott Hickman

2002-06-01T23:59:59.000Z

412

MoO3 as combined hole injection layer and tapered spacer in combinatorial multicolor microcavity organic light emitting diodes  

SciTech Connect

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.

Liu, R.; Xu, Chun; Biswas, Rana; Shinar, Joseph; Shinar, Ruth

2011-09-01T23:59:59.000Z

413

Low-spin structure of {sup 96}Mo studied with the (n,n{sup '}{gamma}) reaction  

Science Conference Proceedings (OSTI)

Extensive studies of the low-spin excited states in {sub 42}{sup 96}Mo{sub 54} with the (n,n{sup '}{gamma}) reaction have clarified the level scheme below 3.7 MeV excitation energy and determined detailed information about {sup 96}Mo, including lifetimes from the Doppler-shift attenuation method, branching ratios, and multipole mixing ratios. Also, B(E2) and B(M1) values were determined for many transitions, multiphonon states were identified, and several low-spin states were characterized in terms of collective, mixed-symmetry states.

Lesher, S. R.; Yates, S. W. [Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055 (United States); Department of Physics, University of Richmond, Richmond, Virginia 23173 (United States); McKay, C. J.; Bandyopadhyay, D.; Boukharouba, N.; Fransen, C.; Orce, J. N.; McEllistrem, M. T. [Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055 (United States); Mynk, M. [Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506-0055 (United States)

2007-03-15T23:59:59.000Z

414

Xcel Energy - Solar*Rewards Program and MN Made PV Rebate Program |  

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

Xcel Energy - Solar*Rewards Program and MN Made PV Rebate Program Xcel Energy - Solar*Rewards Program and MN Made PV Rebate Program Xcel Energy - Solar*Rewards Program and MN Made PV Rebate Program < Back Eligibility Commercial Local Government Nonprofit Residential Savings Category Solar Buying & Making Electricity Maximum Rebate $90,000 (as determined by the incentive level and maximum system size) Program Info Start Date 03/01/2010 State Minnesota Program Type Utility Rebate Program Rebate Amount REC Rebate Program 2010-2012:$2.25/W DC REC Rebate Program 2013:$1.50/W DC Minnesota Made Bonus 2010-2012:Up to an additional $2.75/W DC (paired with REC Rebate) Provider Xcel Energy '''''Note: All 2012 funding for the Solar*Rewards program and Minnesota Made Bonus has been reserved as of July 11, 2012. On October 1, 2012, the

415

In-situ spectro-microscopy on organic films: Mn-Phthalocyanine on Ag(100)  

SciTech Connect

Metal phthalocyanines are attracting significant attention, owing to their potential for applications in chemical sensors, solar cells and organic magnets. As the electronic properties of molecular films are determined by their crystallinity and molecular packing, the optimization of film quality is important for improving the performance of organic devices. Here, we present the results of in situ low-energy electron microscopy / photoemission electron microscopy (LEEM/PEEM) studies of incorporation-limited growth [1] of manganese-phthalocyanine (MnPc) on Ag(100) surfaces. MnPc thin films were grown on both, bulk Ag(100) surface and thin Ag(100)/Fe(100) films, where substrate spin-polarized electronic states can be modified through tuning the thickness of the Ag film [2]. We also discuss the electronic structure and magnetic ordering in MnPc thin films, investigated by angle- and spin-resolved photoemission spectroscopy.

Al-Mahboob A.; Vescovo, E.; Sadowski, J.T.

2013-08-18T23:59:59.000Z

416

Magnetism, chemical spots, and stratification in the HgMn star phi Phoenicis  

E-Print Network (OSTI)

Mercury-manganese (HgMn) stars have been considered as non-magnetic and non-variable chemically peculiar (CP) stars for a long time. However, recent discoveries of the variability in spectral line profiles suggested an inhomogeneous surface distribution of chemical elements in some HgMn stars. From the studies of other CP stars it is known that magnetic field plays a key role in the formation of surface spots. All attempts to find magnetic fields in HgMn stars yielded negative results. In this study, we investigate a possible presence of the magnetic field in phi Phe (HD 11753) and reconstruct surface distribution of chemical elements that show variability in spectral lines. We also test a hypothesis that magnetic field is concentrated in chemical spots and look into the possibility that some chemical elements are stratified with depth in the stellar atmosphere.

Makaganiuk, V; Piskunov, N; Jeffers, S V; Johns-Krull, C M; Keller, C U; Rodenhuis, M; Snik, F; Stempels, H C; Valenti, J A

2011-01-01T23:59:59.000Z

417

Growth and Magnetic Properties of Mn-doped Germanium near the Kinetic Solubility Limit  

Science Conference Proceedings (OSTI)

Growth of high-quality dilute magnetic semiconductor (DMS) material is often compromised by the low solubility of magnetic dopants, leading to formation of precipitates. Here, we explore the feasibility of growing precipitate-free Mn-doped Ge at doping levels near the kinetic solubility limit. Ge:Mn DMS films were grown at low temperature so as to minimize precipitate formation. Meanwhile, epitaxial quality was maintained by employing a very low growth rate. The magnetic properties of these lightly doped films exhibit both interesting contrasts and similarities with those of heavily-doped DMS reported in the literature, indicating that the substitutional Mn contents are very similar. Films grown at 95 degree C are free of intermetallic precipitates, offering useful opportunities for studying the fundamentals of carrier mediated exchange and metal insulator transitions without complications arising from precipitate formation.

Ozer, Mustafa M [University of Tennessee, Knoxville (UTK); Thompson, James R [ORNL; Weitering, Harm H [ORNL

2012-01-01T23:59:59.000Z

418

Microwave-assisted fast vapor-phase transport synthesis of MnAPO-5 molecular sieves  

Science Conference Proceedings (OSTI)

MnAPO-5 was prepared by a microwave-assisted vapor-phase transport method at 180 deg. C in short times. The products were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectra, UV-vis spectroscopic measurement, NH{sub 3}-temperature-programmed desorption and esterification reaction. It was found that dry gels prepared with aluminum isopropoxide, phosphoric acid and manganese acetate could be transferred to MnAPO-5 in the vapors of triethylamine and water by the microwave-assisted vapor-phase transport method at 180 deg. C for less than 30 min. The crystallization time was greatly reduced by the microwave heating compared with the conventional heating. The resulting MnAPO-5 exhibited much smaller particle sizes, higher surface areas and slightly higher catalytic activity in the esterification of acetic acid and butyl alcohol than those prepared by the conventional vapor-phase transport method and hydrothermal synthesis.

Shao Hui [State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009 (China); Department of Chemical Engineering, Jiangsu Polytechnic University, Changzhou 213016 (China); Yao Jianfeng; Ke Xuebin [State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009 (China); Zhang Lixiong [State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009 (China)], E-mail: lixiongzhang@yahoo.com; Xu Nanping [State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009 (China)

2009-04-02T23:59:59.000Z

419

The eects of CO2, CO and H2 co-reactants on methane reactions catalyzed by Mo/H-ZSM-5  

E-Print Network (OSTI)

partial oxidation and autothermal or steam reforming is currently practiced [1±4]. Catalytic pyrolysisThe eects of CO2, CO and H2 co-reactants on methane reactions catalyzed by Mo/H-ZSM-5 Zheng Liu-reactants; methane reactions; Mo/H-ZSM-5 catalyst. 1. Introduction The direct conversion of natural gas

Iglesia, Enrique

420

Effects of Cr-Mo Infiltration Source Structure on the Thickness of Alloy Layer by Double Glow Plasma Surface Metallurgy Technology  

Science Conference Proceedings (OSTI)

To strengthen the growth characteristics of layer on Q235 steel, a new source structure of Cr-Mo infiltration was proposed by plasma surface metallurgy technology. Comparative experiments were carried out on source polar of scrubbing brush structure ... Keywords: Surface alloying, Cr-Mo infiltrated, Plasma surface metallurgy technology, Thickness of layer

Jinyong Xu; Jingchun Zhang; Yajuan Liu; Cheng Gao

2010-03-01T23:59:59.000Z

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


421

Neutron and X-ray diffraction studies on the high temperature phase of Mn{sub 3}(VO{sub 4}){sub 2}, the new isostructural compound NaMn{sub 4}(VO{sub 4}){sub 3} and their mixed crystals Na{sub x}Mn{sub 4.5-x/2}(VO{sub 4}){sub 3} (0{<=}x{<=}1)  

SciTech Connect

This paper presents a detailed structure analysis (combined Rietveld analysis of X-ray and neutron powder diffraction data as well as quantum mechanical calculations) of the high temperature phase of Mn{sub 3}(VO{sub 4}){sub 2} (space group I4 Macron 2d). Special attention is directed to the analysis of the local coordination around Mn{sup 2+} ions or vacancies within a stella quadrangula configuration of anions. Furthermore, the new compound NaMn{sub 4}(VO{sub 4}){sub 3} is described as well as a range of mixed crystals between NaMn{sub 4}(VO{sub 4}){sub 3} and Mn{sub 3}(VO{sub 4}){sub 2} (described by the formula Na{sub x}Mn{sub 4.5-x/2}(VO{sub 4}){sub 3}, 0{<=}x{<=}1) which were synthesized by a solid state route. All compounds were shown to be isostructural to the high temperature phase Mn{sub 3}(VO{sub 4}){sub 2}. - Graphical abstract: The crystal structure of the new compound NaMn{sub 4}(VO{sub 4}){sub 3}. Highlights: Black-Right-Pointing-Pointer We present neutron and X-ray diffraction studies on high temperature-Mn{sub 3}(VO{sub 4}){sub 2}. Black-Right-Pointing-Pointer Structural details of partly filled stellae quadrangulae positions are discussed. Black-Right-Pointing-Pointer Refined structural parameters and theoretical calculations are compared. Black-Right-Pointing-Pointer We investigate the mixed crystal system Mn{sub 3}(VO{sub 4}){sub 2}-NaMn{sub 4}(VO{sub 4}){sub 3}.

Clemens, Oliver [Universitaet des Saarlandes, Institut fuer Anorganische und Analytische Chemie und Radiochemie, Am Markt, Zeile 5, 66125 Saarbruecken (Germany)] [Universitaet des Saarlandes, Institut fuer Anorganische und Analytische Chemie und Radiochemie, Am Markt, Zeile 5, 66125 Saarbruecken (Germany); Haberkorn, Robert [Universitaet des Saarlandes, Anorganische Festkoerperchemie, Am Markt, Zeile 3, 66125 Saarbruecken (Germany)] [Universitaet des Saarlandes, Anorganische Festkoerperchemie, Am Markt, Zeile 3, 66125 Saarbruecken (Germany); Springborg, Michael [Universitaet des Saarlandes, Physikalische und Theoretische Chemie, Campus B2 2, 66123 Saarbruecken (Germany)] [Universitaet des Saarlandes, Physikalische und Theoretische Chemie, Campus B2 2, 66123 Saarbruecken (Germany); Beck, Horst Philipp, E-mail: hp.beck@mx.uni-saarland.de [Universitaet des Saarlandes, Institut fuer Anorganische und Analytische Chemie und Radiochemie, Am Markt, Zeile 5, 66125 Saarbruecken (Germany)

2012-10-15T23:59:59.000Z

422

Stoichiometric growth of high Curie temperature heavily alloyed GaMnAs  

SciTech Connect

Heavily alloyed, 100 nm Ga{sub 1-x}Mn{sub x}As (x>0.1) films are obtained via low-temperature molecular beam epitaxy by utilizing a combinatorial technique which allows systematic control of excess arsenic during growth. Reproducible electronic, magnetic, and structural properties are optimized in a narrow range of stoichiometric growth conditions. In contrast to a prediction of the Zener model of hole-mediated ferromagnetism, the Curie temperature of the stoichiometric material is independent of x (for x>0.1), while substitutional Mn content is proportional to x within a large window of growth conditions.

Mack, S.; Myers, R. C.; Heron, J. T.; Gossard, A. C.; Awschalom, D. D. [Center for Spintronics and Quantum Computation, University of California, Santa Barbara, California 93106 (United States)

2008-05-12T23:59:59.000Z

423

Ultrafast Enhancement of Ferromagnetism via Photoexcited Holes inGaMnAs  

SciTech Connect

We report on the observation of ultrafast photo-enhanced ferromagnetism in GaMnAs. It is manifested as a transient magnetization increase on a 100-ps time scale, after an initial sub-ps demagnetization. The dynamic magnetization enhancement exhibits a maximum below the Curie temperature {Tc} and dominates the demagnetization component when approaching {Tc}. We attribute the observed ultrafast collective ordering to the p-d exchange interaction between photoexcited holes and Mn spins, leading to a correlation-induced peak around 20K and a transient increase in {Tc}.

Wang, J.; Cotoros, I.; Dani, K.M.; Liu, X.; Furdyna, J.K.; Chemla, D.S.

2007-02-17T23:59:59.000Z

424

Relaxation of photoinduced spins and carriers in ferromagnetic InMnSb films  

SciTech Connect

The authors report time resolved measurements and control of photoinduced spin and carrier relaxations in InMnSb ferromagnetic films with 2% Mn content (grown by low-temperature molecular beam epitaxy) using femtosecond laser pulses, and compare them to analogous measurements on InBeSb and InSb films. In this work, magneto-optical Kerr effect and standard pump-probe techniques provided a direct measure of the photoexcited spin and carrier lifetimes, respectively. They observe decrease in relaxations times in the high laser fluence regime and an absence of temperature dependence of the relaxation times.

Nontapot, K.; Kini, R. N.; Gifford, A.; Merritt, T. R.; Khodaparast, G. A.; Wojtowicz, T.; Liu, X.; Furdyna, J. K. [Department of Physics, Virginia Tech, Blacksburg, Virginia 24061 (United States); Institute of Physics, Polish Academy of Sciences, 02-668 Warsaw (Poland); Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)

2007-04-02T23:59:59.000Z

425

Fabrication of (Mn,Co)3O4 Surface Coatings onto Alloy Substrates  

DOE Green Energy (OSTI)

Ferritic stainless steels are promising candidates for IT-SOFC interconnect applications due to their low cost and resistance to oxidation at SOFC operating temperatures. However, several challenges remain, including long term electrical conductivity and surface stability under interconnect exposure conditions and chromia scale evaporation. One means of extending interconnect lifetime and improving performance is to apply a protective coating, such as (Mn,Co)3O4 spinel, to the cathode side of the interconnect. These coatings have proven effective in reducing scale growth kinetics and Cr volatility. This report describes several procedures developed at PNNL for fabricating (Mn,Co)3O4 spinel coatings onto ferritic stainless steels.

Yang, Zhenguo; Xia, Guanguang; Li, Xiaohong S.; Singh, Prabhakar; Stevenson, Jeffry W.

2007-04-30T23:59:59.000Z

426

Preparation and structural study from neutron diffraction data of Pr{sub 5}Mo{sub 3}O{sub 16}  

SciTech Connect

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

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

427

Multisegmented Au-MnO2/Carbon Nanotube Hybrid Coaxial Arrays for High-Power Supercapacitor Applications  

E-Print Network (OSTI)

Multisegmented Au-MnO2/Carbon Nanotube Hybrid Coaxial Arrays for High-Power SupercapacitorVised Manuscript ReceiVed: NoVember 4, 2009 The present work reports on synthesis and supercapacitor applications hybrid coaxial arrays are efficient electrodes for supercapacitor applications. Au-segmented MnO2/CNT

Ajayan, Pulickel M.

428

Measurements of nuclear $\\gamma$-ray line emission in interactions of protons and $\\alpha$ particles with N, O, Ne and Si  

E-Print Network (OSTI)

$\\gamma$-ray production cross sections have been measured in proton irradiations of N, Ne and Si and $\\alpha$-particle irradiations of N and Ne. In the same experiment we extracted also line shapes for strong $\\gamma$-ray lines of $^{16}$O produced in proton and $\\alpha$-particle irradiations of O. For the measurements gas targets were used for N, O and Ne and a thick foil was used for Si. All targets were of natural isotopic composition. Beams in the energy range up to 26 MeV for protons and 39 MeV for $\\alpha$-particles have been delivered by the IPN-Orsay tandem accelerator. The $\\gamma$ rays have been detected with four HP-Ge detectors in the angular range 30$^{\\circ}$ to 135$^{\\circ}$. We extracted 36 cross section excitation functions for proton reactions and 14 for $\\alpha$-particle reactions. For the majority of the excitation functions no other data exist to our knowledge. Where comparison with existing data was possible usually a very good agreement was found. It is shown that these data are very in...

Benhabiles-Mezhoud, H; Thibaud, J -P; Tatischeff, V; Deloncle, I; Coc, A; Duprat, J; Hamadache, C; Lefebvre-Schuhl, A; Dalouzy, J -C; De Grancey, F; De Oliveira, F; Dayras, F; De Srville, N; Pellegriti, M -G; Lamia, L; Ouichaoui, S

2010-01-01T23:59:59.000Z

429

THE INFLUENCE OF UNCERTAINTIES IN THE {sup 15}O({alpha}, {gamma}){sup 19}Ne REACTION RATE ON MODELS OF TYPE I X-RAY BURSTS  

SciTech Connect

We present a Monte Carlo calculation of the astrophysical rate of the {sup 15}O({alpha}, {gamma}){sup 19}Ne reaction based on an evaluation of published experimental data. By considering the likelihood distributions of individual resonance parameters derived from measurements, estimates of upper and lower limits on the reaction rate at the 99.73% confidence level are derived in addition to the recommended, median value. These three reaction rates are used as input for three separate calculations of Type I X-ray bursts (XRBs) using spherically symmetric, hydrodynamic simulations of an accreting neutron star. In this way the influence of the {sup 15}O({alpha}, {gamma}){sup 19}Ne reaction rate on the peak luminosity, recurrence time, and associated nucleosynthesis in models of Type I XRBs is studied. Contrary to previous findings, no substantial effect on any of these quantities is observed in a sequence of four bursts when varying the reaction rate between its lower and upper limits. Rather, the differences in these quantities are comparable to the burst-to-burst variations with a fixed reaction rate, indicating that uncertainties in the {sup 15}O({alpha}, {gamma}){sup 19}Ne reaction rate do not strongly affect the predictions of this Type I XRB model.

Davids, Barry [TRIUMF, Vancouver, BC V6T 2A3 (Canada); Cyburt, Richard H. [Joint Institute for Nuclear Astrophysics and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI (United States); Jose, Jordi [Departament de Fisica i Enginyeria Nuclear, Universitat Politecnica de Catalunya and Institut d'Estudis Espacials de Catalunya, Barcelona (Spain); Mythili, Subramanian [Physics Department, George Mason University, Fairfax, VA (United States)

2011-07-01T23:59:59.000Z

430

Toluene 4-Monooxygenase and its Complex with Effector Protein T4moD  

Science Conference Proceedings (OSTI)

Toluene 4-monooxygenase (T4MO) is a multiprotein diiron enzyme complex that catalyzes the regiospecific oxidation of toluene to p-cresol. Catalytic function requires the presence of a small protein, called the effector protein. Effector protein exerts substantial control on the diiron hydroxylase catalytic cycle through protein-protein interactions. High-resolution crystal structures of the stoichometric hydroxylase and effector protein complex described here reveal how protein-protein interactions and reduction of the diiron center produce an active site configuration poised for reaction with O{sub 2}. Further information from crystal structures of mutated isoforms of the hydroxylase and a peroxo adduct is combined with catalytic results to give a fuller picture of the geometry of the enzyme-substrate complex used for the high fidelity oxidation of hydrocarbon substrates.

Bailey, Lucas J.; Fox, Brian G. (UW)

2012-10-16T23:59:59.000Z

431

Structure and composition of clean and hydrogen covered MoRe surfaces  

DOE Green Energy (OSTI)

The clean and hydrogen covered (100) and (110) faces of Mo{sub 0.75}Re{sub 0.23} alloy single crystals show 1x1 structures. By means of LEED structure analyses we have determined the interlayer distances as well as the layer concentrations down to the sixth layer. While the clean (110) surface turns out to be nearly bulklike terminated, the clean (100) face is found to exhibit both an extended oscillatory layer relaxation and composition profile. Hydrogen adsorption at low temperatures does not alter the composition profile and removes the small remaining relaxation for the (110) surface. In case of the (100) face a substancial reduction of the relaxation is observed for the outermost layer distances as well, while deeper layer relaxations are preserved indicating a strong coupling off relaxation and composition profiles. Hydrogen is found to adsorb in quasi-threefold coordinated sites for the (110) and bridge sites for the (100) face.

Hammer, L.; Meyer, S.; Rath, C. [and others

1995-04-01T23:59:59.000Z

432

Small-scale Specimen Testing of Monolithic U-Mo Fuel Foils  

SciTech Connect

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.

Ramprashad Prabhakaran; Douglas E. Burkes; James I. Cole; Indrajit Charit; Daniel M. Wachs

2008-10-01T23:59:59.000Z

433

Development and processing of LEU targets for {sup 99}Mo production  

SciTech Connect

Substituting LEU for HEU in targets for producing fission-product {sup 99}Mo requires changes in target design and chemical processing. We have made significant progress in developing targets and chemical processes for this purpose. Target development was concentrated on a U- metal foil target as a replacement for the coated-UO{sub 2} Cintichem- type target. Although the first designs were not successful because of ion mixing-induced bonding of the U foil to the target tubes, recent irradiations of modified targets have proven successful. It was shown that only minor modifications of the Cintichem chemical process are required for the U-metal foil targets. A demonstration using prototypically irradiated targets is anticipated by the end of 1996. Progress was also made in basic dissolution of both U-metal foil and Al-clad U{sub 3}Si{sub 2} dispersion fuel targets, and work in this area is also continuing.

Snelgrove, J.L.; Vandergrift, G.F.; Hofman, G.L.

1997-02-01T23:59:59.000Z

434

Synthesis and optical properties of MoS{sub 2} nanoclusters  

DOE Green Energy (OSTI)

Highly crystalline nanoclusters of MoS{sub 2} were synthesized and their optical absorption and photoluminescence spectra were investigated. Key results include: (1) strong quantum confinement effects with decreasing size; (2) preservation of the quasiparticle (or excitonic) nature of the optical response for clusters down to {approximately} 2.5 nm in size which are only two unit cells thick; (3) demonstration that 3-D confinement produces energy shifts which are over an order of magnitude larger than those due to 1-D confinement; (4) observation of large increases in the spin-orbit splittings at the top of the valence band at the K and M points of the Brillouin zone with decreasing cluster size; and (5) observation of photoluminescence due to both direct and surface recombination. Application is to photocatalysts for solar fuel production and detoxification of chemical waste.

Wilcoxon, J.P.; Newcomer, P.P.; Samara, G.A.

1996-12-01T23:59:59.000Z

435

Nuclear Sturcture Along the Neutron Dripline: MoNa-LISA and the dinueutron system  

Science Conference Proceedings (OSTI)

Nuclei with extreme neutron-to-proton ratios were found to present different structures from what was known for the stable ones. With the current facilities we can now study nuclei that lie even beyond the neutron drip line. At the National Superconducting Cyclotron Laboratory at Michigan State University we use the MoNA/Sweeper setup to perform such studies of neutron unbound nuclei. In a typical experiment, a radioactive beam is employed to produce the nucleus of interest. This unbound nucleus immediately decays into a neutron and a remaining charged fragment, both of which are detected and used to reconstruct the original nucleus and study its properties. In this Colloquium, new exciting findings from recent experiments will be presented. These include the first observation of a dineutron decay from 16Be, the exploration of the south shore of the Island of Inversion and the first evidence of the decay of the troubling nucleus 26O.

Spyou, Artemis [Michigan State Univeristy

2012-09-05T23:59:59.000Z

436

Thermodynamic modeling and experimental validation of the Fe-Al-Ni-Cr-Mo alloy system  

SciTech Connect

NiAl-type precipitate-strengthened ferritic steels have been known as potential materials for the steam turbine applications. In this study, thermodynamic descriptions of the B2-NiAl type nano-scaled precipitates and body-centered-cubic (BCC) Fe matrix phase for four alloys based on the Fe-Al-Ni-Cr-Mo system were developed as a function of the alloy composition at the aging temperature. The calculated phase structure, composition, and volume fraction were validated by the experimental investigations using synchrotron X-ray diffraction and atom probe tomography. With the ability to accurately predict the key microstructural features related to the mechanical properties in a given alloy system, the established thermodynamic model in the current study may significantly accelerate the alloy design process of the NiAl-strengthened ferritic steels.

Teng, Zhenke [ORNL; Zhang, F [CompuTherm LLC, Madison, WI; Miller, Michael K [ORNL; Liu, Chain T [Hong Kong Polytechnic University; Huang, Shenyan [ORNL; Chou, Y.T. [Multi-Phase Services Inc., Knoxville; Tien, R [Multi-Phase Services Inc., Knoxville; Chang, Y A [ORNL; Liaw, Peter K [University of Tennessee, Knoxville (UTK)

2012-01-01T23:59:59.000Z

437

Microstructural characterization of as-cast biocompatible Co-Cr-Mo alloys  

SciTech Connect

The microstructure of a cobalt-base alloy (Co-Cr-Mo) obtained by the investment casting process was studied. This alloy complies with the ASTM F75 standard and is widely used in the manufacturing of orthopedic implants because of its high strength, good corrosion resistance and excellent biocompatibility properties. This work focuses on the resulting microstructures arising from samples poured under industrial environment conditions, of three different Co-Cr-Mo alloys. For this purpose, we used: 1) an alloy built up from commercial purity constituents, 2) a remelted alloy and 3) a certified alloy for comparison. The characterization of the samples was achieved by using optical microscopy (OM) with a colorant etchant to identify the present phases and scanning electron microscopy (SE-SEM) and energy dispersion spectrometry (EDS) techniques for a better identification. In general the as-cast microstructure is a Co-fcc dendritic matrix with the presence of a secondary phase, such as the M{sub 23}C{sub 6} carbides precipitated at grain boundaries and interdendritic zones. These precipitates are the main strengthening mechanism in this type of alloys. Other minority phases were also reported and their presence could be linked to the cooling rate and the manufacturing process variables and environment. - Research Highlights: {yields}The solidification microstructure of an ASTM-F75 type alloy were studied. {yields}The alloys were poured under an industrial environment. {yields}Carbides and sigma phase identified by color metallography and scanning microscopy (SEM and EDS). {yields}Two carbide morphologies were detected 'blocky type' and 'pearlite type'. {yields}Minority phases were also detected.

Giacchi, J.V., E-mail: jgiacchi@exa.unicen.edu.ar [Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Av. Rivadavia 1917, C1033AAJ Buenos Aires (Argentina); Instituto de Fisica de Materiales Tandil (IFIMAT-FCE-CICPBA) Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399 B7000GHG Tandil (Argentina); Morando, C.N.; Fornaro, O. [Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Av. Rivadavia 1917, C1033AAJ Buenos Aires (Argentina); Instituto de Fisica de Materiales Tandil (IFIMAT-FCE-CICPBA) Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399 B7000GHG Tandil (Argentina); Palacio, H.A. [Comision de Investigaciones Cientificas de la Provincia de Buenos Aires (CICPBA), Calle 526 e/10 y 11 B1096APP La Plata (Argentina); Instituto de Fisica de Materiales Tandil (IFIMAT-FCE-CICPBA) Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399 B7000GHG Tandil (Argentina)

2011-01-15T23:59:59.000Z

438

NUMERICAL SIMULATION FOR MECHANICAL BEHAVIOR OF U10MO MONOLITHIC MINIPLATES FOR RESEARCH AND TEST REACTORS  

Science Conference Proceedings (OSTI)

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.

Hakan Ozaltun & Herman Shen

2011-11-01T23:59:59.000Z

439

Development of an energy-use estimation methodology for the revised Navy Manual MO-303  

SciTech Connect

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.

Richman, E.E.; Keller, J.M.; Wood, A.G.; Dittmer, A.L.

1995-01-01T23:59:59.000Z

440

Gd/sub 2/ (MoO/sub 4/)/sub 3/ longitudinal electrooptic modulator at 6328 A  

SciTech Connect

A Gd/sub 2/(MoO/sub 4/)/sub 3/ light modulator operating at low frequencies, from 100 Hz up to 1 MHz, is examined. Experimental results concerning the thermal behavior and stability, frequency response, and linearity performance characteristics of the system are presented. Advantages and disadvantages of the modulator are discussed.

Theophanous, N.G.

1976-08-01T23:59:59.000Z

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


441

Characterization and Hydrodesulfurization Activity of CoMo Catalysts Supported on Boron-Doped Sol-Gel Alumina  

E-Print Network (OSTI)

desulfurization character of the CoMo catalysts supported on the B- Al2O3 supports, because high hydrogenation, the catalysts were kept in a closed vessel during two hours for aging, and then dried overnight in an oven.29 in the HDS of Kuwait gas oil [14], heavy Kuwait residue oil [15], and Kuwait crude oil [25]. They correlated

Paris-Sud XI, Université de

442

Characterization of the Microstructure of Irradiated U-Mo Dispersion Fuel with a Matrix that Contains Si  

SciTech Connect

RERTR U-Mo dispersion fuel plates are being developed for application in research reactors throughout the world. Of particular interest is the irradiation performance of U-Mo dispersion fuels with Si added to the Al matrix. Si is added to improve the performance of U-Mo dispersion fuels. Microstructural examinations have been performed on fuel plates with Al-2Si matrix after irradiation to around 50% LEU burnup. Si-rich layers were observed in many areas around the various U-7Mo fuel particles. In one local area of one of the samples, where the Si-rich layer had developed into a layer devoid of Si, relatively large fission gas bubbles were observed in the interaction phase. There may be a connection between the growth of these bubbles and the amount of Si present in the interaction layer. Overall, it was found that having Si-rich layers around the fuel particles after fuel plate fabrication positively impacted the overall performance of the fuel plate.

D. D. Keiser, Jr.; A. B. Robinson; J. F. Jue; P. Medvedev; M. R. Finlay

2009-03-01T23:59:59.000Z

443

Determining the Specificity of Terms based on Information Theoretic Pum-Mo Ryu and Key-Sun Choi  

E-Print Network (OSTI)

Determining the Specificity of Terms based on Information Theoretic Measures Pum-Mo Ryu and Key@world.kaist.ac.kr, kschoi@world.kaist.ac.kr Abstract This paper introduces new specificity determining methods for terms based on information theoretic measures. The specificity of terms represents the quantity of domain

444

Growth of single-crystal {alpha}-MnO{sub 2} nanorods on multi-walled carbon nanotubes  

Science Conference Proceedings (OSTI)

Single-crystal {alpha}-MnO{sub 2} nanorods were grown on multi-walled carbon nanotubes (MWNTs) in H{sub 2}SO{sub 4} aqueous solution. The morphology and microstructure of the composites were examined by transmission electron microscopy, high-resolution transmission electron microscopy (HRTEM), X-ray diffractometry and energy dispersive spectroscopy (EDS). The results show that {alpha}-MnO{sub 2} single-crystal nanorods with a mean diameter of 15 nm were densely grown on the surface of MWNTs. Those MWNTs/MnO{sub 2} composites were used as an electrode material for supercapacitors, and it was found that the supercapacitor performance using MWNTs/MnO{sub 2} composites was improved largely compared to that using pure MWNTs and {alpha}-MnO{sub 2} nanorod mechanically mixed with MWNTs.

Chen Yong [Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016 (China); Key Laboratory of Tropic Biological Resources, MOE, Hainan University, 58 Renmin Road, Haikou 570228 (China); Liu Chenguang; Liu Chang [Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016 (China); Lu Gaoqing [ARC Centre for Functional Nanomaterials, Australian Institute of Bioengineering and Nanotechnology, University of Queensland, QLD 4072 (Australia); Cheng Huiming [Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016 (China)], E-mail: cheng@imr.ac.cn

2007-11-06T23:59:59.000Z