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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

On SIC-POVMs in Prime Dimensions  

E-Print Network [OSTI]

The generalized Pauli group and its normalizer, the Clifford group, have a rich mathematical structure which is relevant to the problem of constructing symmetric informationally complete POVMs (SIC-POVMs). To date, almost every known SIC-POVM fiducial vector is an eigenstate of a "canonical" unitary in the Clifford group. I show that every canonical unitary in prime dimensions p > 3 lies in the same conjugacy class of the Clifford group and give a class representative for all such dimensions. It follows that if even one such SIC-POVM fiducial vector is an eigenvector of such a unitary, then all of them are (for a given such dimension). I also conjecture that in all dimensions d, the number of conjugacy classes is bounded above by 3 and depends only on d mod 9, and I support this claim with computer computations in all dimensions < 48.

Steven T. Flammia

2006-10-20T23:59:59.000Z

2

Solute embrittlement of SiC  

SciTech Connect (OSTI)

The energies and stresses associated with the decohesion of ?-SiC in the presence of mobile Pd and Ag impurities are studied from first principles. Density functional theory calculations are parameterized with a generalized cohesive zone model and are analyzed within a thermodynamic framework that accounts for realistic boundary conditions in the presence of mobile impurities. We find that Pd impurities will embrittle SiC when Pd is in equilibrium with metallic Pd precipitates. Our thermodynamic analysis predicts that Pd embrittles SiC by substantially reducing the maximum stress of decohesion as a result of a phase transition between decohering planes involving an influx of Pd atoms. The methods presented in this work can be applied to study the thermodynamics of decohesion of SiC in other aggressive environments containing oxygen and water, for example, and yield environment dependent cohesive zone models for use in continuum approaches to study crack propagation and fracture.

Enrique, Raúl A., E-mail: enriquer@umich.edu [Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48103 (United States); Van der Ven, Anton, E-mail: avdv@engineering.ucsb.edu [Materials Department, University of California, Santa Barbara, California 93106-5050 (United States)

2014-09-21T23:59:59.000Z

3

Wettability of Ti3SiC2 by Ag-Cu and Ag-Cu-Ti O. Dezellus,a*  

E-Print Network [OSTI]

ternary ceramics Mn+1AXn (where M corresponds to an early transition metal, A is an A-group element, and X of metals and ceramic properties [1]. Among these compounds, titanium silicon carbide (Ti3SiC2) has gained, the ternary carbide Ti3SiC2 has gained much attention due to its unique characteristics combining

Boyer, Edmond

4

Technique for mounting SiC fibers for cross-sectional microscopic examination  

SciTech Connect (OSTI)

Silicon carbide (SiC) fibers are commonly used in many composite and other material applications. It is often of interest to examine cross sections of such fibers microscopically, prior to composite manufacturing processes, to ensure diameter consistency. However, SiC fibers are difficult materials to metallographically mount and polish, because the fibers are harder than most epoxy mounting materials. The difference in hardness between the SiC and the mounting epoxy usually causes rounding of the fibers during final polishing. It is also difficult to position a large group of fibers for cross-sectioning, because a group of closely spaced fibers will have poor bonding to the epoxy. The following technique was developed to improve the preparation of cross-sectional samples of SiC fibers. In this study, fibers of SiC plated with electroless nickel were used to demonstrate the technique. The following outline describes the steps that were taken in preparing a cross-sectional specimen of the plated fibers.

Ptasienski, J.J. (Alcoa Technical Center, Alcoa Center, PA (United States))

1994-07-01T23:59:59.000Z

5

Microwave joining of SiC  

SciTech Connect (OSTI)

The purpose of this work is to optimize the properties of SiC-SiC joints made using microwave energy. The current focus is on identification of the most effective joining methods for scale-up to large tube assemblies, including joining using SiC produced in situ from chemical precursors. During FY 1996, a new microwave applicator was designed, fabricated and tested that provides the capability for vacuum baking of the specimens and insulation and for processing under inert environment. This applicator was used to join continuous fiber-reinforced (CFCC) SiC/SiC composites using a polymer precursor to form a SiC interlayer in situ.

Silberglitt, R.; Ahmad, I.; Tian, Y.L. [FM Technologies, Inc., Fairfax, VA (United States)] [and others

1997-04-01T23:59:59.000Z

6

Structural and magnetic properties of irradiated SiC  

SciTech Connect (OSTI)

We present a comprehensive structural characterization of ferromagnetic SiC single crystals induced by Ne ion irradiation. The ferromagnetism has been confirmed by electron spin resonance, and possible transition metal impurities can be excluded to be the origin of the observed ferromagnetism. Using X-ray diffraction and Rutherford backscattering/channeling spectroscopy, we estimate the damage to the crystallinity of SiC, which mutually influences the ferromagnetism in SiC.

Wang, Yutian; Helm, Manfred [Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, P.O. Box 510119, 01314 Dresden (Germany); Technische Universität Dresden, 01062 Dresden (Germany); Chen, Xuliang; Yang, Zhaorong [Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031 (China); Li, Lin [Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, P.O. Box 510119, 01314 Dresden (Germany); Department of Physics and Electronics, School of Science, Beijing University of Chemical Technology, Beijing 100029 (China); Shalimov, Artem; Prucnal, Slawomir; Munnik, Frans; Skorupa, Wolfgang; Zhou, Shengqiang, E-mail: s.zhou@hzdr.de [Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, P.O. Box 510119, 01314 Dresden (Germany); Tong, Wei [High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031 (China)

2014-05-07T23:59:59.000Z

7

SiC Power MOSFET with Improved Gate Dielectric  

SciTech Connect (OSTI)

In this STTR program, Structured Materials Industries (SMI), and Cornell University are developing novel gate oxide technology, as a critical enabler for silicon carbide (SiC) devices. SiC is a wide bandgap semiconductor material, with many unique properties. SiC devices are ideally suited for high-power, highvoltage, high-frequency, high-temperature and radiation resistant applications. The DOE has expressed interest in developing SiC devices for use in extreme environments, in high energy physics applications and in power generation. The development of transistors based on the Metal Oxide Semiconductor Field Effect Transistor (MOSFET) structure will be critical to these applications.

Sbrockey, Nick M; Tompa, Gary S; Spencer, Michael G; Chandrashekhar, Chandra MVS

2010-08-23T23:59:59.000Z

8

Nanocrystalline SiC and Ti3SiC2 Alloys for Reactor Materials: Diffusion of Fission Product Surrogates  

SciTech Connect (OSTI)

MAX phases, such as titanium silicon carbide (Ti3SiC2), have a unique combination of both metallic and ceramic properties, which make them attractive for potential nuclear applications. Ti3SiC2 has been suggested in the literature as a possible fuel cladding material. Prior to the application, it is necessary to investigate diffusivities of fission products in the ternary compound at elevated temperatures. This study attempts to obtain relevant data and make an initial assessment for Ti3SiC2. Ion implantation was used to introduce fission product surrogates (Ag and Cs) and a noble metal (Au) in Ti3SiC2, SiC, and a dual-phase nanocomposite of Ti3SiC2/SiC synthesized at PNNL. Thermal annealing and in-situ Rutherford backscattering spectrometry (RBS) were employed to study the diffusivity of the various implanted species in the materials. In-situ RBS study of Ti3SiC2 implanted with Au ions at various temperatures was also performed. The experimental results indicate that the implanted Ag in SiC is immobile up to the highest temperature (1273 K) applied in this study; in contrast, significant out-diffusion of both Ag and Au in MAX phase Ti3SiC2 occurs during ion implantation at 873 K. Cs in Ti3SiC2 is found to diffuse during post-irradiation annealing at 973 K, and noticeable Cs release from the sample is observed. This study may suggest caution in using Ti3SiC2 as a fuel cladding material for advanced nuclear reactors operating at very high temperatures. Further studies of the related materials are recommended.

Henager, Charles H.; Jiang, Weilin

2014-11-01T23:59:59.000Z

9

Atomic-Level Computer Simulation of SiC: Defect Accumulation...  

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

Atomic-Level Computer Simulation of SiC: Defect Accumulation, Mechanical Properties and Defect Recovery. Atomic-Level Computer Simulation of SiC: Defect Accumulation, Mechanical...

10

Compatibility of SiC and SiC Composites with Molten Lead  

SciTech Connect (OSTI)

The choice of structural material candidates to contain Lead at 1000 C are limited in number. Silicon carbide composites comprise one choice of possible containment materials. Short term screening studies (120 hours) were undertaken to study the behavior of Silicon Carbide, Silicon Nitride, elemental Silicon and various Silicon Carbide fiber composites focusing mainly on melt infiltrated composites. Isothermal experiments at 1000 C utilized graphite fixtures to contain the Lead and material specimens under a low oxygen partial pressure environment. The corrosion weight loss values (grams/cm{sup 2} Hr) obtained for each of the pure materials showed SiC (monolithic CVD or Hexoloy) to have the best materials compatibility with Lead at this temperature. Increased weight loss values were observed for pure Silicon Nitride and elemental Silicon. For the SiC fiber composite samples those prepared using a SiC matrix material performed better than Si{sub 3}N{sub 4} as a matrix material. Composites prepared using a silicon melt infiltration process showed larger corrosion weight loss values due to the solubility of silicon in lead at these temperatures. When excess silicon was removed from these composite samples the corrosion performance for these material improved. These screening studies were used to guide future long term exposure (both isothermal and non-isothermal) experiments and Silicon Carbide composite fabrication work.

H Tunison

2006-03-07T23:59:59.000Z

11

archaea ecology sic: Topics by E-print Network  

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

and analysis of lateral SiC N-emitter SiGe P-base Schottky metal-collector (NPM) HBT on SOI Engineering Websites Summary: on SOI M. Jagadesh Kumar *, C. Linga Reddy...

12

Microwave joining of SiC ceramics and composites  

SciTech Connect (OSTI)

Potential applications of SiC include components for advanced turbine engines, tube assemblies for radiant burners and petrochemical processing and heat exchangers for high efficiency electric power generation systems. Reliable methods for joining SiC are required in order to cost-effectively fabricate components for these applications from commercially available shapes and sizes. This manuscript reports the results of microwave joining experiments performed using two different types of SiC materials. The first were on reaction bonded SiC, and produced joints with fracture toughness equal to or greater than that of the base material over an extended range of joining temperatures. The second were on continuous fiber-reinforced SiC/SiC composite materials, which were successfully joined with a commercial active brazing alloy, as well as by using a polymer precursor.

Ahmad, I.; Silberglitt, R.; Tian, Y.L. [FM Technologies, Inc., Fairfax, VA (United States); Katz, J.D. [Los Alamos National Lab., NM (United States)

1997-04-01T23:59:59.000Z

13

Predicting Static Losses in an Inverter-Leg built with SiC Normally-Off JFETs and SiC diodes  

E-Print Network [OSTI]

Predicting Static Losses in an Inverter-Leg built with SiC Normally-Off JFETs and SiC diodes Xavier details the methodology of a method to calculate static losses in an inverter leg built with SiC Normally model with a constant current. The proposed method is applied to a three phase inverter to evaluate

Paris-Sud XI, Université de

14

Over-Current Protection Scheme for SiC Power MOSFET DC Circuit Breaker  

E-Print Network [OSTI]

V. Radun, “SiC based solid state power controller,” in 23tha solid-state circuit breaker based on SiC power MOSFET withSolid-state DC circuit breakers made of the modern wide bandgap power

Zhang, Yuan; Liang, Yung C.

2015-01-01T23:59:59.000Z

15

Annealing Simulations of Nano-Sized Amorphous Structures in SiC...  

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

Simulations of Nano-Sized Amorphous Structures in SiC. Annealing Simulations of Nano-Sized Amorphous Structures in SiC. Abstract: A two-dimensional model of a nano-sized amorphous...

16

Hollow Core-Shell Structured Porous Si-C Nanocomposites for Li...  

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

Hollow Core-Shell Structured Porous Si-C Nanocomposites for Li-Ion Battery Anodes. Hollow Core-Shell Structured Porous Si-C Nanocomposites for Li-Ion Battery Anodes. Abstract:...

17

Nanocrystalline SiC and Ti3SiC2 Alloys for Reactor Materials: Thermal and Mechanical Properties  

SciTech Connect (OSTI)

SiC-polymers (pure polycarbosilane and polycarbosilane filled with SiC-particles) are being combined with Si and TiC powders to create a new class of polymer-derived ceramics for consideration as advanced nuclear materials in a variety of applications. Compared to pure SiC these materials have increased fracture toughness with only slightly reduced thermal conductivity. Future work with carbon nanotube (CNT) mats will be introduced with the potential to increase the thermal conductivity and the fracture toughness. At present, this report documents the fabrication of a new class of monolithic polymer derived ceramics, SiC + SiC/Ti3SiC2 dual phase materials. The fracture toughness of the dual phase material was measured to be significantly greater than Hexoloy SiC using indentation fracture toughness testing. However, thermal conductivity of the dual phase material was reduced compared to Hexoloy SiC, but was still appreciable, with conductivities in the range of 40 to 60 W/(m K). This report includes synthesis details, optical and scanning electron microscopy images, compositional data, fracture toughness, and thermal conductivity data.

Henager, Charles H.; Alvine, Kyle J.; Roosendaal, Timothy J.; Shin, Yongsoon; Nguyen, Ba Nghiep; Borlaug, Brennan A.; Jiang, Weilin

2014-04-01T23:59:59.000Z

18

Methane Combustion over Pd/ZrO2/SiC, Pd/CeO2/SiC, Pd/Zr0.5Ce0.5O2/SiC Catalysts  

E-Print Network [OSTI]

1 Methane Combustion over Pd/ZrO2/SiC, Pd/CeO2/SiC, Pd/Zr0.5Ce0.5O2/SiC Catalysts Xiaoning Guo a Laboratory of Coal Conversion, Institute of Coal Chemistry, Taiyuan 030001, PR China b GREMI UMR6606 CNRS0.5O2 solid solution) modified Pd/SiC catalysts for methane combustion are studied. XRD and XPS

Paris-Sud XI, Université de

19

Impact of SiC Devices on Hybrid Electric and Plug-in Hybrid Electric Vehicles  

E-Print Network [OSTI]

Impact of SiC Devices on Hybrid Electric and Plug-in Hybrid Electric Vehicles Hui Zhang1 , Leon M -- The application of SiC devices (as battery interface, motor controller, etc.) in a hybrid electric vehicle (HEV, vehicle simulation software). Power loss models of a SiC inverter are incorporated into PSAT powertrain

Tolbert, Leon M.

20

Effects of Silicon Carbide (SiC) Power Devices on HEV PWM Inverter Losses*  

E-Print Network [OSTI]

Effects of Silicon Carbide (SiC) Power Devices on HEV PWM Inverter Losses* Burak Ozpineci1,3 burak and Education Oak Ridge, TN 37831-0117 Abstract-The emergence of silicon carbide- (SiC-) based power, silicon carbide (SiC) with its superior properties compared with Si, is a good candidate to be used

Tolbert, Leon M.

Note: This page contains sample records for the topic "groups 2-digit sic" 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

NUCLEATION PHENOMENON IN SiC PARTICULATE REINFORCED MAGNESIUM COMPOSITE  

E-Print Network [OSTI]

NUCLEATION PHENOMENON IN SiC PARTICULATE REINFORCED MAGNESIUM COMPOSITE Y. Cai, D. Taplin, M.J. Tan performance of matrix metals and alloys. Most magnesium alloy based MMCs are produced via a casting process into the last freezing interdendritic regions. For magnesium based composites, both particle pushing (or capture

Zhou, Wei

22

SIC (MUltiple SIgnal Classification) CSP (Cross-power Spectrum Phase)  

E-Print Network [OSTI]

2ch CSP ( ) 1 MU- SIC (MUltiple SIgnal Classification) CSP (Cross- power Spectrum Phase) [1, 2, 3, 4] [5, 6] [7, 8, 9, 10] [7] CSP CSP [8] [9] CSP [10] Estimation of talker's head orientation based (Kobe univ.) [11] 2ch CSP CSP CSP CSP 2 CSP GCC-PHAT (Generalized Cross- Correlation PHAse Transform

Takiguchi, Tetsuya

23

Impact of SiC Power Electronic Devices for Hybrid Electric Vehicles Leon M. Tolbert1,2  

E-Print Network [OSTI]

02FCC-37 Impact of SiC Power Electronic Devices for Hybrid Electric Vehicles Leon M. Tolbert1 properties of silicon carbide (SiC) power electronic devices compared with silicon (Si) are expected to have characteristics of Si and SiC are used to develop a simulation model for SiC power electronics devices. The main

Tolbert, Leon M.

24

Fractographic investigation of flaws in sintered SiC fiber  

SciTech Connect (OSTI)

The Carborundum Company has developed a continuous process to produce multifilament, polycrystalline SiC fiber tow. The process uses a melt spinning approach to make the green fibers wherein the submicron SiC powder is mixed with polymers and the resulting compound is melt spun and extruded through a spinnerette. After extraction, the green fibers are sintered in a continuous sintering line. The properties of this fiber are given. This paper will describe the use of fractography in directing the fiber developmental efforts, specifically on characterization of strength-limiting defects and their origination. Fractographic analysis is also extended to determining strength of fibers at any gauge length and in identifying artifacts associated with the tensile strength testing technique.

Srinivasan, G.V.; Venkateswaran, V. [Carborundum Company, Niagara Falls, NY (United States)

1996-12-31T23:59:59.000Z

25

Research on microwave joining of SiC  

SciTech Connect (OSTI)

Results: identification of optimum joining temperature range for reaction bonded Si carbide at 1420-1500 C; demonstration that specimens joined within this range have fracture roughness greater than as-received material; and demonstration of ability to use SiC formed in situ from the decomposition of polycarbosilane as a joining aid for sintered Si carbide. In the latter case, the interlayer material was also shown to fill any pores in the joining specimens near the interlayer. Together with the demonstration of leaktight joints between tube sections of reaction bonded and sintered SiC under the previous contract, these results provide the foundation for scaleup to joining of the larger and longer tubes needed for radiant burner and heat exchanger tube assemblies. The formation of SiC in situ is important because maintaining roundness of these large tubes is a technical challenge for the tube manufacturer, so that formation of a leaktight joint may require some degree of gap filling.

Silberglitt, R. [FM Technologies, Inc., Fairfax Station, VA (United States)

1995-07-31T23:59:59.000Z

26

E-Print Network 3.0 - amorphous sic coatings Sample Search Results  

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

Biology and Medicine ; Environmental Sciences and Ecology 9 PRISTINE PRESOLAR SILICON CARBIDE FROM MURCHISON. T. Bernatowicz1 , O. Pravdivtseva1 Summary: %) of the pristine SiC...

27

UPDATE ON SIC-BASED INVERTER TECHNOLOGY Abstract This paper presents a study of Silicon  

E-Print Network [OSTI]

development of power devices is a critical aspect of the power electronic industry along with new topologies temperature SiC based inverters for automotive and power system applications. Research involves work on highUPDATE ON SIC-BASED INVERTER TECHNOLOGY Abstract ­ This paper presents a study of Silicon Carbide

Tolbert, Leon M.

28

Graphene on Carbon-face SiC{0001} Surfaces Formed in a Disilane Environment  

E-Print Network [OSTI]

Graphene on Carbon-face SiC{0001} Surfaces Formed in a Disilane Environment N. Srivastavaa , Guowei-face, graphene, interface structure, low energy electron microscopy, disilane Abstract. The formation of epitaxial graphene on SiC( 1000 ) in a disilane environment is studied. The higher graphitization

Feenstra, Randall

29

Oxidation of SiC cladding under Loss of Coolant Accident (LOCA) conditions in LWRs  

SciTech Connect (OSTI)

An experimental assessment of Silicon Carbide (SiC) cladding oxidation rate in steam under conditions representative of Loss of Coolant Accidents (LOCA) in light water reactors (LWRs) was conducted. SiC oxidation tests were performed with monolithic alpha phase tubular samples in a vertical quartz tube at a steam temperature of 1140 deg. C and steam velocity range of 1 to 10 m/sec, at atmospheric pressure. Linear weight loss of SiC samples due to boundary layer controlled reaction of silica scale (SiO{sub 2} volatilization) was experimentally observed. The weight loss rate increased with increasing steam flow rate. Over the range of test conditions, SiC oxidation rates were shown to be about 3 orders of magnitude lower than the oxidation rates of zircaloy 4. A SiC volatilization correlation for developing laminar flow in a vertical channel is formulated. (authors)

Lee, Y.; Yue, C.; Arnold, R. P.; McKrell, T. J.; Kazimi, M. S. [Dept. of Nuclear Science and Engineering, Massachusetts Inst. of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139-4307 (United States)

2012-07-01T23:59:59.000Z

30

SiC's Potential Impact on the Design of Wind Generation System , Leon M. Tolbert1,2  

E-Print Network [OSTI]

SiC's Potential Impact on the Design of Wind Generation System Hui Zhang1 , Leon M. Tolbert1 National Laboratory Knoxville, TN 37932 Abstract -- The potential impact of SiC devices on a wind temperatures and frequencies. A conclusion is drawn that the SiC converters can improve the wind system

Tolbert, Leon M.

31

Generation and Recombination Carrier Lifetimes in 4H SiC Epitaxial Wafers , M. J. Loboda1)  

E-Print Network [OSTI]

Generation and Recombination Carrier Lifetimes in 4H SiC Epitaxial Wafers G. Chung1) , M. J. Loboda comparative studies of recombination and carrier lifetimes in SiC. For the first time, both generation-wafer structures. The ratio of the generation to recombination lifetime is much different in SiC compared to Si

Schroder, Dieter K.

32

In situ toughened SiC ceramics with Al-B-C additions and oxide-coated SiC platelet/SiC composites  

SciTech Connect (OSTI)

This work aimed at fabrication and characterization of high toughness SiC ceramics through the applications of in situ toughening and SiC platelet reinforcement. The processing-microstructure-property relations of hot pressed SiC with Al, B, and C additions (designated as ABC-SiC) were investigated. Through a liquid phase sintering mechanism, dense SiC was obtained by hot pressing at a temperature as low as 1,700 C with 3 wt% Al, 0.6 wt% B, and 2 wt% C additions. These sintering aids also enhanced the {beta}-to-{alpha} (3C-to-4H) phase transformation, which promoted SiC grains to grow into plate-like shapes. Under optimal processing conditions, the microstructure exhibited high-aspect-ratio plate-shaped grains with a thin (< 1 nm) Al-containing amorphous grain boundary film. The mechanical properties of the toughened SiC and the composites were evaluated in comparison with a commercial Hexoloy SiC under identical test conditions. The C-curve behavior was examined using the strength-indentation load relationship and compared with that directly measured using precracked compact tension specimens. The in situ toughened ABC-SiC exhibited much improved flaw tolerance and a significantly rising R-curve behavior. A steady-state toughness in excess of 9 MPam{sup 1/2} was recorded for the ABC-SiC in comparison to a single valued toughness below 3 MPam{sup 1/2} for the Hexoloy. Toughening in the ABC-SiC was mainly attributed to grain bridging and subsequent pullout of the plate-shaped grains. The high toughness ABC-SiC exhibited a bend strength of 650 MPa with a Weibull modulus of 19; in comparison, the commercial SiC showed a bend strength of 400 MPa with a Weibull modulus of 6. Higher fracture toughness was also achieved by the reinforcement of SiC platelets, encapsulated with alumina, yttria, or silica, in a SiC matrix.

Cao, J. [Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Mineral Engineering; [Lawrence Berkeley National Lab., CA (United States). Materials Sciences Div.

1996-12-01T23:59:59.000Z

33

Vehicle Technologies Office Merit Review 2014: Development of SiC Large Tapered Crystal Growth  

Broader source: Energy.gov [DOE]

Presentation given by NASA at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about development of SiC large tapered crystal...

34

SiC APDs and arrays for UV and solar blind detection  

E-Print Network [OSTI]

We report advancements in APDs and arrays using 4H SiC. Novel structures, array designs and specialized read out integrated circuits have been developed towards the realization of UV and solar-blind detector arrays exhibiting ...

Shaw, Gary A.

35

Cellu-WHAT?-sic: Communicating the Biofuels Message to Local Stakeholders  

Broader source: Energy.gov [DOE]

Breakout Session 3D—Building Market Confidence and Understanding III: Engaging Key Audiences in Bioenergy Cellu-WHAT?-sic: Communicating the Biofuels Message to Local Stakeholders Matt Merritt, Director, Public Relations, POET–DSM Advanced Biofuels

36

Breakthrough in Power Electronics from SiC: May 25, 2004 - May 31, 2005  

SciTech Connect (OSTI)

This report explores the premise that silicon carbide (SiC) devices would reduce substantially the cost of energy of large wind turbines that need power electronics for variable speed generation systems.

Marckx, D. A.

2006-03-01T23:59:59.000Z

37

Stopping power measurements of He ions in Si and SiC by time...  

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

power measurements of He ions in Si and SiC by time-of-flight spectrometry. Abstract: Electronic energy loss is the fundamental mechanism accountable for the response of...

38

E-Print Network 3.0 - advanced polycrystalline sic Sample Search...  

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

MOSFETs Summary: solubility in silicon and Si1-xGex and can form undesirable silicon carbide (SiC) precipitates, degrading... and electrical properties. There has also been very...

39

Pitting Corrosion in CVD SiC at 300?C in Deoxygenated High-Purity Water  

SciTech Connect (OSTI)

SiC is a candidate for nuclear applications at elevated temperatures but has not been fully studied under typical light-water reactor operating conditions, such as moderate temperatures and high pressures. Coupons of high-purity chemical vapor deposited SiC were exposed to deoxygenated, pressurized water at 573K and 100 Bar for up to 4000 hours. Ceramographic examination of the exposed SiC surfaces revealed both embryonic and large, d > 300 µm, pits on the surface. The pits were characterized using scanning electron microscopy for structure and chemistry analysis. Pit densities were also determined by standard counting methods. The chemical analysis revealed that the pits are associated with the formation of silica and subsequent loss of Si, which is expected due to several suggested reactions between SiC and water.

Henager, Charles H.; Schemer-Kohrn, Alan L.; Pitman, Stan G.; Senor, David J.; Geelhood, Ken J.; Painter, Chad L.

2008-08-15T23:59:59.000Z

40

ESS 2012 Peer Review - 15 kV Phase Leg Power Modules with SiC...  

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

1 Click to edit Master title style 15 kV Phase Leg Power Modules with SiC MIDSJT Devices Ranbir Singh and Siddarth Sundaresan GeneSiC Semiconductor Inc. ranbir.singh@genesicsemi.co...

Note: This page contains sample records for the topic "groups 2-digit sic" 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

Synthesis of One-Dimensional SiC Nanostructures from a Glassy Buckypaper  

SciTech Connect (OSTI)

A simple and scalable synthetic strategy was developed for the fabrication of one-dimensional SiC nanostructures - nanorods and nanowires. Thin sheets of single-walled carbon nanotubes (SWNTs) were prepared by vacuum filtration and were washed repeatedly with sodium silicate (Na{sub 2}SiO{sub 3}) solution. The resulting “glassy buckypaper” was heated at 1300 - 1500 °C under Ar/H{sub 2} to allow a solid state reaction between C and Si precursors to form a variety of SiC nanostructures. The morphology and crystal structures of SiC nanorods and nanowires were characterized using scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), energy dispersive xray spectroscopy (EDX), electron diffraction (ED) and x-ray diffraction (XRD) techniques. Furthermore, electrical conductance measurements were performed on SiC nanorods, demonstrating their potential applications in high-temperature sensors and control systems.

Ding, Mengning; Star, Alexander

2013-03-27T23:59:59.000Z

42

Minimizing Test Time through Test FlowOptimization in 3D-SICs.  

E-Print Network [OSTI]

?? 3D stacked ICs (3D-SICs) with multiple dies interconnected by through-silicon-vias(TSVs) are considered as a technology driver and proven to have overwhelming advantagesover traditional ICs… (more)

DASH, ASSMITRA

2013-01-01T23:59:59.000Z

43

The development of chemically vapor deposited mullite coatings for the corrosion protection of SiC  

SciTech Connect (OSTI)

Crystalline mullite coatings have been chemically vapor deposited onto SiC substrates to enhance the corrosion and oxidation resistance of the substrate. Current research has been divided into three distinct areas: (1) Development of the deposition processing conditions for increased control over coating`s growth rate, microstructure, and morphology; (2) Analysis of the coating`s crystal structure and stability; (3) The corrosion resistance of the CVD mullite coating on SiC.

Auger, M.; Hou, P.; Sengupta, A.; Basu, S.; Sarin, V. [Boston Univ., MA (United States)

1998-05-01T23:59:59.000Z

44

Microwave-assisted pyrolysis of SiC and its application to joining  

SciTech Connect (OSTI)

Microwave energy has been used to pyrolyze silicon carbide from commercially available polycarbosilane precursor. The pyrolysis was performed on SiC surfaces having various surface treatments, to identify conditions which improve the wetting and adherence. Grinding and etching of the surfaces in hydrofluoric (HF) acid promotes the bonding of precursor derived ceramic to the SiC ceramic. Finally, the polycarbosilane precursor mixed with fine silicon carbide powder was used as the interlayer material to join silicon carbide specimens.

Ahmad, I.; Silberglitt, R. [FM Technologies, Inc., Fairfax, VA (United States); Shan, T.A. [George Mason Univ., Fairfax, VA (United States)] [and others

1995-07-01T23:59:59.000Z

45

A SiC MOSFET Based Inverter for Wireless Power Transfer Applications  

SciTech Connect (OSTI)

In a wireless power transfer (WPT) system, efficiency of the power conversion stages is crucial so that the WPT technology can compete with the conventional conductive charging systems. Since there are 5 or 6 power conversion stages, each stage needs to be as efficient as possible. SiC inverters are crucial in this case; they can handle high frequency operation and they can operate at relatively higher temperatures resulting in reduces cost and size for the cooling components. This study presents the detailed power module design, development, and fabrication of a SiC inverter. The proposed inverter has been tested at three center frequencies that are considered for the WPT standardization. Performance of the inverter at the same target power transfer level is analyzed along with the other system components. In addition, another SiC inverter has been built in authors laboratory by using the ORNL designed and developed SiC modules. It is shown that the inverter with ORNL packaged SiC modules performs simular to that of the inverter having commercially available SiC modules.

Onar, Omer C [ORNL] [ORNL; Chinthavali, Madhu Sudhan [ORNL] [ORNL; Campbell, Steven L [ORNL] [ORNL; Ning, Puqi [Chinese Academy of Sciences (CAS)] [Chinese Academy of Sciences (CAS); White, Cliff P [ORNL] [ORNL; Miller (JNJ), John M. [JNJ-Miller PLC] [JNJ-Miller PLC

2014-01-01T23:59:59.000Z

46

U.S. Department of Energy Accident Resistant SiC Clad Nuclear Fuel Development  

SciTech Connect (OSTI)

A significant effort is being placed on silicon carbide ceramic matrix composite (SiC CMC) nuclear fuel cladding by Light Water Reactor Sustainability (LWRS) Advanced Light Water Reactor Nuclear Fuels Pathway. The intent of this work is to invest in a high-risk, high-reward technology that can be introduced in a relatively short time. The LWRS goal is to demonstrate successful advanced fuels technology that suitable for commercial development to support nuclear relicensing. Ceramic matrix composites are an established non-nuclear technology that utilizes ceramic fibers embedded in a ceramic matrix. A thin interfacial layer between the fibers and the matrix allows for ductile behavior. The SiC CMC has relatively high strength at high reactor accident temperatures when compared to metallic cladding. SiC also has a very low chemical reactivity and doesn't react exothermically with the reactor cooling water. The radiation behavior of SiC has also been studied extensively as structural fusion system components. The SiC CMC technology is in the early stages of development and will need to mature before confidence in the developed designs can created. The advanced SiC CMC materials do offer the potential for greatly improved safety because of their high temperature strength, chemical stability and reduced hydrogen generation.

George W. Griffith

2011-10-01T23:59:59.000Z

47

Elevated temperature static fatigue of a Nicalon fiber-reinforced SiC composite  

SciTech Connect (OSTI)

Static fatigue tests of a Nicalon fiber-reinforced SiC matrix composite were conducted in four-point bending over a temperature range of 425 to 1,150 C in air at selected stress levels. The composite consisted of a Nicalon cloth with a 0.3 {mu}m graphite interfacial coating and a Forced Chemical Vapor Infiltration (FCVI) SiC matrix composite; samples were tested with or without a final protective SiC seal coat. The results indicated that the fatigue life of the Nicalon-SiC composite decreased with an increase in either applied stresses or test temperatures. However, the composite exhibited a fatigue limit of {approximately} 100 MPa at temperatures < 950 C which decreased to {approximately} 70 MPa at 1,150 C. Both electron microscopy and thermogravimetric studies suggested that the lifetime of the composites was dictated by the oxidation of graphite interfacial layer at temperatures {le} 700 C and by oxidation of graphite coating accompanied by formation of silicate interfacial layer via oxidation of the Nicalon fiber (and the SiC matrix) at temperatures {ge} 950 C. Use of a SiC seal coat effectively retarded the oxidation reactions and increased the lifetime by at least one order of magnitude at 425 C. On the other hand, the SiC seal coat made little (if any) difference in fatigue life at 950 C.

Lin, H.T.; Becher, P.F.; Tortorelli, P.F. [Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.

1994-12-31T23:59:59.000Z

48

Preparation and dielectric properties of SiC nanowires self-sacrificially templated by carbonated bacterial cellulose  

SciTech Connect (OSTI)

Graphical abstract: Display Omitted Highlights: ? A new material – CBC is introduced as a template to prepare SiC nanowires. ? SiC nanowires are synthesized by the infiltration process of reactive vapor Si. ? The highest ?? of ?-SiC nanowires is obtained at 1400 °C. -- Abstract: SiC nanowires were synthesized by the infiltration process of reactive vapor Si in Ar atmosphere at 1350–1450 °C, using carbonated bacterial cellulose (CBC) as carbon template and a reactant. Scanning electron microscopy (SEM), powder X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), and vector network analyzer were employed to characterize the samples. The diameter of the resulting ?-SiC nanowires changes with calcination temperatures, specifically, 35–60 nm for 1350 °C, 40–80 nm for 1400 °C, and 30–60 nm for 1450 °C. The ?-SiC nanowires obtained at 1400 °C possess the highest ?? of complex permittivity.

Wen, Lixia; Ma, Yongjun; Dai, Bo [State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010 (China)] [State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010 (China); Zhou, Yong [Eco-materials and Renewable Energy Research Center (ERERC), School of Physics, National Lab of Solid State Microstructure, ERERC, Nanjing University, Nanjing 210093 (China)] [Eco-materials and Renewable Energy Research Center (ERERC), School of Physics, National Lab of Solid State Microstructure, ERERC, Nanjing University, Nanjing 210093 (China); Liu, Jinsong [State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010 (China)] [State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010 (China); Pei, Chonghua, E-mail: peichonghua@swust.edu.cn [State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010 (China)] [State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010 (China)

2013-02-15T23:59:59.000Z

49

Matrix-grain-bridging contributions to the toughness of SiC composites with alumina-coated SiC platelets  

SciTech Connect (OSTI)

Silicon carbide composites were fabricated through the incorporation of alumina-coated SiC platelets into a SiC matrix. Mechanical properties were evaluated in direct comparison with a commercial Hexoloy SiC. The fracture toughness of the composite, with a fine grained {beta}-SiC matrix, was twice that of the commercial material. The alumina-coating on the platelets provided a weak interface to promote crack deflection and platelet bridging, as well as easing densification of the composites. On the other hand, a three-fold increase in fracture toughness (9.1 MPa {radical}m) of an in situ toughened monolithic SiC was achieved by processing at higher temperatures, promoting the {beta}-to-{alpha} phase transformation and forming a microstructure containing high-aspect-ration plate-shaped grains. Efforts were made to combine the effects of coated-platelets reinforcement and in situ toughening in the matrix. Moderate high toughness (8 MPa {radical}m) was achieved by coupled toughening. The contribution of matrix-grain-bridging, however, was limited by the processing temperature at which the oxide coating was stable.

Cao, J.J.; He, Y.; MoberlyChan, W.J.; De Jonghe, L.C. [Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Mineral Engineering]|[Lawrence Berkeley Lab., CA (United States). Materials Science Div.

1996-05-01T23:59:59.000Z

50

Physics based analytical modelling of silicon carbide (SiC) MESFET considering different ion implantation energy with high temperature annealing.  

E-Print Network [OSTI]

??A Physics based analytical model of ion implanted SiC MESFET has been developed considering the high temperature annealing effects. The diffusion of implanted impurities has… (more)

Yadavalli, Karthik Vishwanath

2015-01-01T23:59:59.000Z

51

Development of a compound for low temperature joining of SiC ceramics and CFCC composites  

SciTech Connect (OSTI)

This investigation was driven by the need for a robust, practical method to join continuous fiber-reinforced ceramic composite (CFCC) materials composed of SiC fibers in a SiC matrix (SiC/SiC). A new filler compound composition resulted from this research which is composed primarily of a silicon-acetylene ceramic precursor polymer blended with fine alloy and elemental powders. Joint formation relies on reaction of the powders with the products of the polymer pyrolysis reaction and the CFCC on continuous heating from room temperature to the curing temperature. The joint can be heated and cured either in an inert or air atmosphere furnace or in air upon heating with a propane torch to a maximum curing temperature of about 1200{degrees}C. This curing temperature is effective for joint formation while preventing degradation of the SiC fibers in the CFCC material and permitting field joining of SiC CFCC parts with an open flame torch. The joining compound demonstrated good wetting and joint filling characteristics. Mechanical property testing revealed a room temperature bend strength of 50 to 100MPa (7 to 14ksi), depending on care in joint preparation. There was a tendency for partial SiC fiber pullout as the crack propagation path wandered in and out of the joint material during fracture, adding toughness. Preliminary mechanical tests of joined samples, after exposure to high temperature (1100{degrees}C) ambient air for 100 hours. indicated excellent retention of strength.

Anderson, I.E.; Ijadi-Maghsoodi, S.; Uenal, O. [Ames Lab., IA (United States)] [and others

1997-11-01T23:59:59.000Z

52

Combustion Group Group members  

E-Print Network [OSTI]

Combustion Group Group members: Thierry Poinsot, Emilien Courtine, Luc Vervisch, Benjamin Farcy 2014 #12;Combustion Group Combustion Physics and Modeling Pollutants, Emissions, and Soot Formation Thermoacoustics and Combustion Dynamics Research focus § Examine mechanisms responsible for flame stabilization

Wang, Wei

53

Identification of dominant scattering mechanism in epitaxial graphene on SiC  

SciTech Connect (OSTI)

A scheme of identification of scattering mechanisms in epitaxial graphene (EG) on SiC substrate is developed and applied to three EG samples grown on SiC (0001), (112{sup Ż}0), and (101{sup Ż}0) substrates. Hall measurements combined with defect detection technique enable us to evaluate the individual contributions to the carrier scatterings by defects and by substrates. It is found that the dominant scatterings can be due to either substrate or defects, dependent on the substrate orientations. The EG on SiC (112{sup Ż}0) exhibits a better control over the two major scattering mechanisms and achieves the highest mobility even with a high carrier concentration, promising for high performance graphene-based electronic devices. The method developed here will shed light on major aspects in governing carrier transport in EG to harness it effectively.

Lin, Jingjing; Guo, Liwei, E-mail: lwguo@iphy.ac.cn, E-mail: chenx29@aphy.iphy.ac.cn; Jia, Yuping; Huang, Jiao; Guo, Yu; Li, Zhilin; Chen, Xiaolong, E-mail: lwguo@iphy.ac.cn, E-mail: chenx29@aphy.iphy.ac.cn [Research and Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190 (China); Yang, Rong; Wu, Shuang; Zhang, Guangyu [Nanoscale Physics and Devices Laboratory, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190 (China)

2014-05-05T23:59:59.000Z

54

Size Effect of SiC Particle on Microstructures and Mechanical Properties of SiCp/Al Composites  

E-Print Network [OSTI]

Cp/Al composites were fabricated using aluminum alloy ZL101 as the matrix material, and SiC particles respectively. The results show that the SiC particles can distribute uniformly in the aluminum matrix using matrix or reinforced materials [1-5]. They are promising materials for aerospace, automotive, thermal

Qin, Qinghua

55

Temperature dependency of MOSFET device characteristics in 4H-and 6H-silicon carbide (SiC)  

E-Print Network [OSTI]

Temperature dependency of MOSFET device characteristics in 4H- and 6H-silicon carbide (SiC) Md was arranged by Prof. A. Iliadis Abstract The advantages of silicon carbide (SiC) over silicon are significant; Silicon carbide; Temperature variation effect 1. Introduction Silicon carbide, a wide bandgap material

Tolbert, Leon M.

56

Thickness monitoring of graphene on SiC using low-energy electron diffraction P. J. Fisher  

E-Print Network [OSTI]

1 Thickness monitoring of graphene on SiC using low-energy electron diffraction P. J. Fisher IBM T of epitaxial graphene on SiC is monitored in-situ using low-energy electron diffraction (LEED). The possibility of using LEED as an in-situ thickness monitor of the graphene is examined. The ratio of primary diffraction

Feenstra, Randall

57

Growth of SiC thin films on graphite for oxidation-protective coating J.-H. Boo,a)  

E-Print Network [OSTI]

, it is necessary to improve its resistance to oxidation. SiC is used as a semiconductor material for high of the SiC layers compared to those grown by thermal MOCVD. The mechanical and oxidation-resistant-2101 00 18204-1 I. INTRODUCTION Graphite, with its advantages of high thermal conductiv- ity, low-thermal

Boo, Jin-Hyo

58

Quasi-Freestanding multilayer graphene films on the carbon face of SiC  

SciTech Connect (OSTI)

The electronic band structure of as-grown and doped graphene grown on the carbon face of SiC is studied by high-resolution angle-resolved photoemission spectroscopy, where we observe both rotations between adjacent layers and AB-stacking. The band structure of quasi-freestanding AB-bilayers is directly compared with bilayer graphene grown on the Si-face of SiC to study the impact of the substrate on the electronic properties of epitaxial graphene. Our results show that the C-face films are nearly freestanding from an electronic point of view, due to the rotations between graphene layers.

Siegel, D. A.; Hwang, C. G.; Fedorov, A. V.; Lanzara, A.

2010-06-30T23:59:59.000Z

59

On He bubbles in neutron irradiated SYLRAMIC type SiC fibers  

SciTech Connect (OSTI)

SylramicTM type SiC fibers, which contain at least 2.3 wt% B, were examined by TEM following neutron irradiation to dose levels of ~7 dpa in HFIR at 800°C and to ~1 dpa in ATR at 1090°C. At these radiation damage dose levels, transmutation of the boron-10 component effectively “dopes” the Sylramic? type fibers with up to 10,000 appm helium. Following irradiation at 800°C, bubble development was too fine to resolve even by high resolution TEM. However, following irradiation at 1090°C helium bubble development was resolvable, but complex. A fine dispersion of 1-nm bubbles was observed within the SiC grains and a coarse, non-uniform distribution of irregular 25-nm bubbles was observed on grain boundaries. In addition, some unusual arrays of planar 2.5-nm thick bubbles were observed in the SiC grains and equiaxed bubbles were observed in the boride precipitate particles contained within the fiber microstructure. Not unexpectedly, helium retention and bubble formation in ?-SiC depends on details of the polycrystalline microstructure as well as the irradiation conditions.

Gelles, David S.; Youngblood, Gerald E.

2006-03-01T23:59:59.000Z

60

A Parametric Device Study for SiC Power Electronics Burak Ozpineci  

E-Print Network [OSTI]

A Parametric Device Study for SiC Power Electronics Burak Ozpineci 1,3 burak@ieee.org Leon M to be used. The circuits people, including power electronics researchers, take the devices as black boxes Typically, power electronics researchers have to choose off-the-shelf power devices with the specifications

Tolbert, Leon M.

Note: This page contains sample records for the topic "groups 2-digit sic" 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

Topology of charge density and elastic properties of Ti3SiC2 polymorphs  

SciTech Connect (OSTI)

Using an all-electron, full potential first-principles method, we have investigated the topology of charge density and elastic properties of the two polymorphs, alpha and beta, of Ti3SiC2. The bonding effect was analyzed based on Bader's quantum theory of ''atoms in molecules'' (AIM). It was found that the Ti-Si bonding effect is significantly weaker in beta than in alpha, giving less stabilizing effect for beta. The Si-C bonds, which are absent in alpha, are formed in beta and provide additional stabilizing effect for beta. In contrast to conventional thinking, there is no direction interaction between Ti atoms in both alpha and beta. The calculated elastic properties are in good agreement with the experimental results, giving the bulk modulus of about 180 GPa and the Poisson's ratio of 0.2. The beta phase is generally softer than the alpha phase. As revealed by the direction dependent Young's modulus, there is only slight elastic anisotropy in Ti3SiC2. For alpha, Young's modulus is minimum in the c direction and maximum in the directions 42o from c. For beta, the maximum lies in the c direction, in part due to the formation of Si-C bonds in this direction.

Yu, Rong; Zhang, Xiao Feng; He, Lian Long; Ye, Heng Qiang

2004-06-24T23:59:59.000Z

62

New Silicon Carbide Schottky-gate Bipolar Mode Field Effect Transistor (SiC SBMFET)  

E-Print Network [OSTI]

New Silicon Carbide Schottky-gate Bipolar Mode Field Effect Transistor (SiC SBMFET) without PN. In this paper, we propose a novel Schottky-gate BMFET (SBMFET) using P- type 4H Silicon-Carbide 13,41, a wide, Silicon Carbide, Field effect transistor, Simulation. I. INTRODUCTION TH E BMFET operates in bipolar mode

Kumar, M. Jagadesh

63

SiC MODIFICATIONS TO MELCOR FOR SEVERE ACCIDENT ANALYSIS APPLICATIONS  

SciTech Connect (OSTI)

The Department of Energy (DOE) Office of Nuclear Energy (NE) Light Water Reactor (LWR) Sustainability Program encompasses strategic research focused on improving reactor core economics and safety margins through the development of an advanced fuel cladding system. The Fuels Pathway within this program focuses on fuel system components outside of the fuel pellet, allowing for alteration of the existing zirconium-based clad system through coatings, addition of ceramic sleeves, or complete replacement (e.g. fully ceramic cladding). The DOE-NE Fuel Cycle Research & Development (FCRD) Advanced Fuels Campaign (AFC) is also conducting research on materials for advanced, accident tolerant fuels and cladding for application in operating LWRs. To aide in this assessment, a silicon carbide (SiC) version of the MELCOR code was developed by substituting SiC in place of Zircaloy in MELCOR’s reactor core oxidation and material property routines. The purpose of this development effort is to provide a numerical capability for estimating the safety advantages of replacing Zr-alloy components in LWRs with SiC components. This modified version of the MELCOR code was applied to the Three Mile Island (TMI-2) plant accident. While the results are considered preliminary, SiC cladding showed a dramatic safety advantage over Zircaloy cladding during this accident.

Brad J. Merrill; Shannon M Bragg-Sitton

2013-09-01T23:59:59.000Z

64

MAGNETOHYDRODYNAMIC AND THERMAL ISSUES OF THE SiCf0SiC FLOW CHANNEL INSERT  

E-Print Network [OSTI]

and heat transfer in the po- loidal channel of the blanket, were studied with numer- ical simulations using, and the effect of SiCf /SiC anisotropy. KEYWORDS: liquid metal blanket, magnetohydrodynamics, heat transfer I modifications, one with no pres- sure equalization openings and one with a pressure equalization slot, have been

Abdou, Mohamed

65

INFLUENCE OF ANISOTROPIC THERMAL CONDUCTIVITY IN THE APPARATUS INSULATION FOR SUBLIMATION GROWTH OF SIC  

E-Print Network [OSTI]

INFLUENCE OF ANISOTROPIC THERMAL CONDUCTIVITY IN THE APPARATUS INSULATION FOR SUBLIMATION GROWTH insulation for sublimation growth of SiC: Numerical investigation of heat transfer J¨urgen Geiser, Olaf Klein). As it is not unusual for the thermal insulation of PVT growth apparatus to possess an anisotropic thermal conductivity

66

Damage production and accumulation in SiC structures in inertial and magnetic fusion systems  

E-Print Network [OSTI]

Damage production and accumulation in SiC structures in inertial and magnetic fusion systems M wall in an IFE system is $10% lower than in an MFE system, while gas production and burnup rates magnetic (MFE) and inertial (IFE) confinement fusion systems. Variations in the geometry, neutron energy

Ghoniem, Nasr M.

67

Emission of terahertz radiation from SiC Jared H. Strait,a  

E-Print Network [OSTI]

for the generation of terahertz radiation. The nonlinear optical properties of various SiC polytypes have been previ the terahertz radiation dependence on the optical pump polarization, the pump angle of incidence, and the pump for terahertz emission. Given its material hard- ness, high optical damage threshold, small optical losses

Afshari, Ehsan

68

Growth and interface phase stability of barium hexaferrite films on SiC(0001)  

SciTech Connect (OSTI)

We have studied interface phase stability of the BaFe{sub 12}O{sub 19} (BaM) thin films grown by molecular beam epitaxy on SiC(0001). The films were epitaxially grown with the following crystallographic relation: BaM(0001) parallel SiC(0001) and BaM(11-20) parallel SiC(11-20). High resolution TEM reveals the existence of two interfacial bands with different structure than BaM. The first band close to SiC is SiO{sub x} while the second has spinel structure and chemically corresponds to Fe{sub 3}O{sub 4}. These findings suggest that at initial growth stages Fe{sub 3}O{sub 4} is more favorable than BaM. Density functional theory modeling of the phase stability of BaM compared to Fe{sub 3}O{sub 4} shows that BaM is only stable at high oxygen partial pressures.

Lazarov, V. K. [Department of Physics, University of York, Heslington, York YO10 5DD (United Kingdom); York JEOL Nanoscience Centre, Heslington, York YO10 5DD (United Kingdom); Hasnip, P. J. [Department of Physics, University of York, Heslington, York YO10 5DD (United Kingdom); Cai, Z.; Ziemer, K. S. [Chemical Engineering Department, Northeastern University, Boston, Massachusetts 02115 (United States); Yoshida, K. [York JEOL Nanoscience Centre, Heslington, York YO10 5DD (United Kingdom)

2011-04-01T23:59:59.000Z

69

The correlation of epitaxial graphene properties and morphology of SiC (0001)  

SciTech Connect (OSTI)

The electronic properties of epitaxial graphene (EG) on SiC (0001) depend sensitively on the surface morphology of SiC substrate. Here, 2–3 layers of graphene were grown on on-axis 6H-SiC with different step densities realized through controlling growth temperature and ambient pressure. We show that epitaxial graphene on SiC (0001) with low step density and straight step edge possesses fewer point defects laying mostly on step edges and higher carrier mobility. A relationship between step density and EG mobility is established. The linear scan of Raman spectra combined with the atomic force microscopy morphology images revealed that the Raman fingerprint peaks are nearly the same on terraces, but shift significantly while cross step edges, suggesting the graphene is not homogeneous in strain and carrier concentration over terraces and step edges of substrates. Thus, control morphology of epitaxial graphene on SiC (0001) is a simple and effective method to pursue optimal route for high quality graphene and will be helpful to prepare wafer sized graphene for device applications.

Guo, Y.; Guo, L. W., E-mail: lwguo@iphy.ac.cn, E-mail: xlchen@iphy.ac.cn; Huang, J.; Jia, Y. P.; Lin, J. J.; Lu, W.; Li, Z. L. [Research and Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Yang, R. [Nanoscale Physics and Devices Laboratory, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Chen, X. L., E-mail: lwguo@iphy.ac.cn, E-mail: xlchen@iphy.ac.cn [Research and Development Center for Functional Crystals, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Collaborative Innovation Center of Quantum Matter, Beijing 100190 (China)

2014-01-28T23:59:59.000Z

70

Environmental effects on creep and stress-rupture properties of advanced SiC fibers  

SciTech Connect (OSTI)

Small diameter polycrystalline SiC fibers are of high technical interest for reinforcement of ceramic matrix composites. These fibers have high room temperature stiffness and strength, and the potential for retaining these properties in oxidizing environments up to 1400{degrees}C. However, with current SiC fibers, it has been observed that the influence of environment on the high temperature creep and rupture behavior of individual fibers can be very complex. For example, Bodet et al. reported better creep resistance of ceramic grade Nicalon fiber in a controlled CO environment than in argon. Yun et al. reported better rupture resistance of Nicalon and Hi-Nicalon in air than in vacuum. Rugg reported better rupture resistance of the Carborundum fiber in nitrogen than in air. In general, in comparison to inert conditions, testing in oxygen can increase or decrease fiber creep resistance, while having similar or opposite effects on rupture resistance. These effects can vary significantly with stress, temperature, and the SiC fiber grain boundary structure, second phase and impurity compositions, stoichiometry, as well as open porosity. As an initial step to better understand these factors, the objectives of this study were (1) to measure the effects of air and argon environments on the creep and rupture behavior of various advanced SiC fibers, (2) to determine whether these effects can be correlated among the fiber types, and (3) to suggest probable sources for these effects based on microstructural mechanisms.

Yun, H.M. [Cleveland State Univ., OH (United States); Goldsby, J.C.; DiCarlo, J.A. [NASA Lewis Research Center, Cleveland, OH (United States)

1995-12-01T23:59:59.000Z

71

Isotopic Ratios of SiC of Type X and Si 3 This appendix contains the isotopic data for 81 presolar SiC grains of type X and six preso  

E-Print Network [OSTI]

for 81 presolar SiC grains of type X and six preso­ lar Si 3 N 4 grains, all found by ion imaging (see C 14 N/ 15 N CN \\Gamma /C \\Gamma 26 Al/ 27 Al KJG6L­103­1 SiC ­420 \\Sigma 4 ­480 \\Sigma 8 40.4 +0:7 \\Gamma0:7 55.3 +3:1 \\Gamma2:8 0.124 \\Delta \\Delta \\Delta KJG6L­105­1 SiC ­277 \\Sigma 11 ­404 \\Sigma 9 289

Nittler, Larry R.

72

Evaluation of sintering effects on SiC incorporated UO2 kernels under Ar and Ar-4%H2 environments  

SciTech Connect (OSTI)

Silicon carbide (SiC) is suggested as an oxygen getter in UO2 kernels used for TRISO particle fuels to lower oxygen potential and prevent kernel migration during irradiation. Scanning electron microscopy and X-ray diffractometry analyses performed on sintered kernels verified that internal gelation process can be used to incorporate SiC in urania fuel kernels. Sintering in either Ar or Ar-4%H2 at 1500 C lowered the SiC content in the UO2 kernels to some extent. Formation of UC was observed as the major chemical phase in the process, while other minor phases such as U3Si2C2, USi2, U3Si2, and UC2 were also identified. UC formation was presumed to be occurred by two reactions. The first was the SiC reaction with its protective SiO2 oxide layer on SiC grains to produce volatile SiO and free carbon that subsequently reacted with UO2 to form UC. The second process was direct UO2 reaction with SiC grains to form SiO, CO, and UC, especially in Ar-4%H2. A slightly higher density and UC content was observed in the sample sintered in Ar-4%H2, but the use of both atmospheres produced kernels with ~95% of theoretical density. It is suggested that incorporating CO in the sintering gas would prevent UC formation and preserve the initial SiC content.

Silva, Chinthaka M [ORNL] [ORNL; Lindemer, Terrence [Harbach Engineering and Solutions] [Harbach Engineering and Solutions; Hunt, Rodney Dale [ORNL] [ORNL; Collins, Jack Lee [ORNL] [ORNL; Terrani, Kurt A [ORNL] [ORNL; Snead, Lance Lewis [ORNL] [ORNL

2013-01-01T23:59:59.000Z

73

Distribution of Pd, Ag & U in the SiC Layer of an Irradiated TRISO Fuel Particle  

SciTech Connect (OSTI)

The distribution of silver, uranium and palladium in the silicon carbide (SiC) layer of an irradiated TRISO fuel particle was studied using samples extracted from the SiC layer using focused ion beam (FIB) techniques. Transmission electron microscopy in conjunction with energy dispersive x-ray spectroscopy was used to identify the presence of the specific elements of interest at grain boundaries, triple junctions and precipitates in the interior of SiC grains. Details on sample fabrication, errors associated with measurements of elemental migration distances and the distances migrated by silver, palladium and uranium in the SiC layer of an irradiated TRISO particle from the AGR-1 program are reported.

Thomas M. Lillo; Isabella J. van Rooyen

2014-08-01T23:59:59.000Z

74

In Situ Generation of Few-Layer Graphene Coatings on SnO2-SiC...  

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

In Situ Generation of Few-Layer Graphene Coatings on SnO2-SiC Core-Shell Nanoparticles for High-Performance Lithium-Ion Storage. In Situ Generation of Few-Layer Graphene Coatings...

75

Electrochemical study of SiC particle occlusion during nickel electrodeposition  

SciTech Connect (OSTI)

Previous, published work conducted by the Bureau of Mines showed that chromium particle occlusion occurs as a result of particle collisions with the cathode surface. Conductive chromium particles within the electric field were also shown to cause a local rise in the cathodic current density on the area immediately adjacent to that particle. In order to research the effect of conductive particles vs. semiconductive particles on the occlusion process, nickel electrodeposition was studied in the presence of SiC particles and compared to previous studies on nickel electrodeposition in the presence and absence of Cr particles. The effect of semiconductive SiC particles on nickel electrodeposition was to catalyze the formation of H[sub ads] as well as Ni[sub ads][sup +] intermediates. Evidence of a H[sub ads] intermediate was obtained by current efficiency studies of Ni electrodeposition as well as X-ray diffraction and hydrogen analyses of the coatings made during electrodeposition.

Watson, S.W. (Bureau of Mines, Albany, OR (United States))

1993-08-01T23:59:59.000Z

76

Fabrication of a single layer graphene by copper intercalation on a SiC(0001) surface  

SciTech Connect (OSTI)

Cu atoms deposited on a zero layer graphene grown on a SiC(0001) substrate, intercalate between the zero layer graphene and the SiC substrate after the thermal annealing above 600?°C, forming a Cu-intercalated single layer graphene. On the Cu-intercalated single layer graphene, a graphene lattice with superstructure due to moiré pattern is observed by scanning tunneling microscopy, and specific linear dispersion at the K{sup Ż} point as well as a characteristic peak in a C{sub 1s} core level spectrum, which is originated from a free-standing graphene, is confirmed by photoemission spectroscopy. The Cu-intercalated single layer graphene is found to be n-doped.

Yagyu, Kazuma; Tochihara, Hiroshi; Tomokage, Hajime; Suzuki, Takayuki [Department of Electronics Engineering and Computer Science, Fukuoka University, Fukuoka 814-0180 (Japan); Tajiri, Takayuki; Kohno, Atsushi [Department of Applied Physics, Fukuoka University, Fukuoka 814-0180 (Japan); Takahashi, Kazutoshi [Synchrotron Light Application Center, Saga University, 1 Honjo, Saga 840-8502 (Japan)

2014-02-03T23:59:59.000Z

77

Tuning carrier density across Dirac point in epitaxial graphene on SiC by corona discharge  

SciTech Connect (OSTI)

We demonstrate reversible carrier density control across the Dirac point (?n???10{sup 13?}cm{sup ?2}) in epitaxial graphene on SiC (SiC/G) via high electrostatic potential gating with ions produced by corona discharge. The method is attractive for applications where graphene with a fixed carrier density is needed, such as quantum metrology, and more generally as a simple method of gating 2DEGs formed at semiconductor interfaces and in topological insulators.

Lartsev, Arseniy; Yager, Tom; Lara-Avila, Samuel, E-mail: samuel.lara@chalmers.se; Kubatkin, Sergey [Department of Microtechnology and Nanoscience, Chalmers University of Technology, S-41296 Göteborg (Sweden); Bergsten, Tobias [SP Technical Research Institute of Sweden, S-50115 Borĺs (Sweden); Tzalenchuk, Alexander [National Physical Laboratory, Teddington TW110LW (United Kingdom); Royal Holloway, University of London, Egham TW20 0EX (United Kingdom); Janssen, T. J. B. M [National Physical Laboratory, Teddington TW110LW (United Kingdom); Yakimova, Rositza [Department of Physics, Chemistry and Biology (IFM), Linköping University, S-58183 Linköping (Sweden)

2014-08-11T23:59:59.000Z

78

Microstructure, strength and toughness of Si3N4-SiC whisker composites  

SciTech Connect (OSTI)

Si3N4-SiC whisker composites were fabricated using several routes (i.e., pressure filtration or CIP) followed by HP or HIP. The fracture strength ranges from 650 MPa to 750 MPa on account of the whiskers orientation. Compared to the Si3N4 matrix, the toughness is increased. A strong R-curve effect can be obtained, suggesting that, to be efficient, the whisker diameter must exceed a critical size. 13 refs.

Champion, E.; Goursat, P.; Besson, J.L.; Madigou, V.; Monthioux, M.; Lespade, P.

1992-10-01T23:59:59.000Z

79

Oxidation of SiC investigated by ellipsometry and Rutherford backscattering spectrometry  

SciTech Connect (OSTI)

Oxidation of SiC was performed in Ar-O{sub 2} mixture of atmospheric pressure at 1100 deg. C and compared with that of Si. The partial pressure of O{sub 2} varied from 100 to 1000 mbar, while the oxidation time ranged from 0.5 to 45 h. The thickness of the oxide films was determined by spectroscopic ellipsometry and Rutherford backscattering spectrometry. The time and the pressure dependence of the oxidation kinetics of SiC are well described by the modified Deal-Grove model. In the diffusion-limited region, even for the faster case, the oxidation kinetics of the C-terminated face of SiC is not clearly limited by oxygen indiffusion, as for pure silicon. To interpret the ellipsometry spectra, two models of possible structure were used. In the case of the one-layer model, for layer thicknesses above 30 nm, the refractive index of the oxide layers is identical to that of thermally oxidized Si, and it increases rapidly with decreasing thickness below about 15 nm. This increase is significantly larger for C-terminated than for Si-terminated faces, and this difference can be explained by a transition layer introduced into the two-layer model. This model contains a pure SiO{sub 2} layer and a transition layer modeled by a mixture of 50 % SiO{sub 2} and 50 % SiC. The transition layer is thicker on the C-terminated surface than on the Si-terminated one. The thickness ratio of the transition layers is slightly larger than the surface roughness ratio on the two different sides determined by atomic force microscopy. The density of the oxide films, which can be determined from the backscattering and spectroscopic ellipsometry spectra, decreases with decreasing thickness below about 30 nm. For thicker films, the density of the oxide is equal to the bulk density of SiO{sub 2}.

Szilagyi, E. [KFKI Research Institute for Particle and Nuclear Physics, P.O. Box 49, H-1525 Budapest (Hungary); Petrik, P.; Lohner, T.; Koos, A. A.; Fried, M.; Battistig, G. [Research Institute for Technical Physics and Materials Science, P.O. Box 49, H-1525 Budapest (Hungary)

2008-07-01T23:59:59.000Z

80

Controlled synthesis and decoupling of monolayer graphene on SiC(0001)  

SciTech Connect (OSTI)

We describe a process for the growth of a single, electronically decoupled graphene layer on SiC(0001). The method involves annealing in disilane to (1) prepare flat, clean substrates, (2) grow a single graphene layer, and (3) electronically decouple the graphene from the substrate. This approach uses a single process gas, at ?Torr pressures, with modest substrate temperatures, thus affecting a drastic simplification over other processes described in the literature.

Oida, S.; Hannon, J. B.; Tromp, R. M. [IBM Research Division, T.J. Watson Research Center, Yorktown Heights, New York 10598 (United States)

2014-04-21T23:59:59.000Z

Note: This page contains sample records for the topic "groups 2-digit sic" 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

Investigation of interlayer materials for the microwave joining of SiC  

SciTech Connect (OSTI)

Microwave joining of ceramics has the potential for increased speed and convenience. Joints have been made in alumina, mullite and silicon nitride with flexure strength approaching, and in some cases exceeding, that of the as received material in a fraction of the time that is customarily required with conventional techniques. This paper describes the initial results of investigations aimed at applying microwave joining to SiC and other carbide ceramics. 8 refs., 5 figs.

Silberglitt, R.; Palaith, D. (Technology Assessment and Transfer, Inc., Annapolis, MD (USA)); Black, W.M.; Sa'adaldin, H.S. (George Mason Univ., Fairfax, VA (USA)); Katz, J.D.; Blake, R.D. (Los Alamos National Lab., NM (USA))

1991-01-01T23:59:59.000Z

82

Creep behavior in SiC whisker-reinforced alumina composite  

SciTech Connect (OSTI)

Grain boundary sliding (often accompanied by cavitation) is a major contributor to compressive and tensile creep deformation in fine-grained aluminas, both with and without whisker-reinforcement. Studies indicate that the creep response of alumina composites reinforced with SiC whiskers can be tailored by controlling the composite microstructure and composition. The addition of SiC whiskers (< 30 vol%) significantly increases the creep resistance of fine-grained (1--2 {mu}m) alumina in air at temperatures of 1,200 and 1,300 C. However, at higher whisker contents (30 and 50 vol%), the creep resistance is degraded due to enhanced surface oxidation reactions accompanied by extensive creep cavitation. Densification aids (i.e., Y{sub 2}O{sub 3}), which facilitate silica glass formation and thus liquid phase densification of the composites, can also result in degradation of creep resistance. On the other hand, increasing the matrix grain size or decreasing the whisker aspect ratio (increased whisker number density) results in raising the creep resistance of the composites. These observations not only explain the variability in the creep response of various SiC whisker-reinforced alumina composites but also indicate factors that can be used to enhance the elevated temperature performance.

Lin, H.T.; Becher, P.F. [Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.

1994-10-01T23:59:59.000Z

83

Abundances of presolar graphite and SiC from supernovae and AGB stars in the Murchison meteorite  

SciTech Connect (OSTI)

Pesolar graphite grains exhibit a range of densities (1.65 – 2.20 g/cm{sup 3}). We investigated abundances of presolar graphite grains formed in supernovae and in asymptotic giant branch (AGB) stars in the four density fractions KE3, KFA1, KFB1 and KFC1 extracted from the Murchison meteorite to probe dust productions in these stellar sources. Seventy-six and 50% of the grains in the low-density fractions KE3 and KFA1, respectively, are supernova grains, while only 7.2% and 0.9% of the grains in the high-density fractions KFB1 and KFC1 have a supernova origin. Grains of AGB star origin are concentrated in the high-density fractions KFB1 and KFC1. From the C isotopic distributions of these fractions and the presence of s-process Kr with {sup 86}Kr/{sup 82}Kr?=?4.43±0.46 in KFC1, we estimate that 76% and 80% of the grains in KFB1 and KFC1, respectively, formed in AGB stars. From the abundance of graphite grains in the Murchison meteorite, 0.88 ppm, the abundances of graphite from supernovae and AGB stars are 0.24 ppm and 0.44 ppm, respectively: the abundances of graphite in supernovae and AGB stars are comparable. In contrast, it has been known that 1% of SiC grains formed in supernovae and 95% formed in AGB stars in meteorites. Since the abundance of SiC grains is 5.85 ppm in the Murchison meteorite, the abundances of SiC from supernovae and AGB stars are 0.063 ppm and 5.6 ppm, respectively: the dominant source of SiC grains is AGB stars. Since SiC grains are harder and likely to survive better in space than graphite grains, the abundance of supernova graphite grains, which is higher than that of supernova SiC grains, indicates that supernovae proficiently produce graphite grains. Graphite grains from AGB stars are, in contrast, less abundant that SiC grains from AGB stars (0.44 ppm vs. 5.6 ppm). It is difficult to derive firm conclusions for graphite and SiC formation in AGB stars due to the difference in susceptibility to grain destruction. Metallicity of the parent AGB stars of graphite grains is much lower than that of SiC grains and the difference in metallicity might also have affected to the difference in the abundances in the Murchison meteorite.

Amari, Sachiko; Zinner, Ernst [McDonnell Center for the Space Sciences and the Physics Department, Washington University, One Brookings Dr., St. Louis, MO 63130 (United States); Gallino, Roberto [Dipartimento di Fisica, Universitŕ di Torino, Via P. Giuria 1, I-10125 Torino (Italy)

2014-05-02T23:59:59.000Z

84

Effect of re-melting on particle distribution and interface formation in SiC reinforced 2124Al matrix composite  

SciTech Connect (OSTI)

The interface between metal matrix and ceramic reinforcement particles plays an important role in improving properties of the metal matrix composites. Hence, it is important to find out the interface structure of composite after re-melting. In the present investigation, the 2124Al matrix with 10 wt.% SiC particle reinforced composite was re-melted at 800 °C and 900 °C for 10 min followed by pouring into a permanent mould. The microstructures reveal that the SiC particles are distributed throughout the Al-matrix. The volume fraction of SiC particles varies from top to bottom of the composite plate and the difference increases with the decrease of re-melting temperature. The interfacial structure of re-melted 2124Al–10 wt.%SiC composite was investigated using scanning electron microscopy, an electron probe micro-analyzer, a scanning transmission electron detector fitted with scanning electron microscopy and an X-ray energy dispersive spectrometer. It is found that a thick layer of reaction product is formed at the interface of composite after re-melting. The experimental results show that the reaction products at the interface are associated with high concentration of Cu, Mg, Si and C. At re-melting temperature, liquid Al reacts with SiC to form Al{sub 4}C{sub 3} and Al–Si eutectic phase or elemental Si at the interface. High concentration of Si at the interface indicates that SiC is dissociated during re-melting. The X-ray energy dispersive spectrometer analyses confirm that Mg- and Cu-enrich phases are formed at the interface region. The Mg is segregated at the interface region and formed MgAl{sub 2}O{sub 4} in the presence of oxygen. The several elements identified at the interface region indicate that different types of interfaces are formed in between Al matrix and SiC particles. The Al–Si eutectic phase is formed around SiC particles during re-melting which restricts the SiC dissolution. - Highlights: • Re-melted composite shows homogeneous particle distribution • Thick reaction products are observed at the interface • Carbide is identified at interface due to SiC dissolution at high temperature • Reaction products are also Si enrich phase • Mg and Cu segregated and formed MgAl{sub 2}O{sub 4}, CuMgAl{sub 2} phase at grain boundary.

Mandal, Durbadal, E-mail: durbadal73@yahoo.co.in [MEF Division, CSIR-National Metallurgical Laboratory, Jamshedpur 831007 (India); Viswanathan, Srinath [Dept of Metallurgical and Materials Engineering, University of Alabama, Tuscaloosa, AL (United States)

2013-12-15T23:59:59.000Z

85

A wide bandgap silicon carbide (SiC) gate driver for high-temperature and high-voltage applications  

SciTech Connect (OSTI)

Limitations of silicon (Si) based power electronic devices can be overcome with Silicon Carbide (SiC) because of its remarkable material properties. SiC is a wide bandgap semiconductor material with larger bandgap, lower leakage currents, higher breakdown electric field, and higher thermal conductivity, which promotes higher switching frequencies for high power applications, higher temperature operation, and results in higher power density devices relative to Si [1]. The proposed work is focused on design of a SiC gate driver to drive a SiC power MOSFET, on a Cree SiC process, with rise/fall times (less than 100 ns) suitable for 500 kHz to 1 MHz switching frequency applications. A process optimized gate driver topology design which is significantly different from generic Si circuit design is proposed. The ultimate goal of the project is to integrate this gate driver into a Toyota Prius plug-in hybrid electric vehicle (PHEV) charger module. The application of this high frequency charger will result in lighter, smaller, cheaper, and a more efficient power electronics system.

Lamichhane, Ranjan [University of Arkansas; Ericson, Milton Nance [ORNL; Frank, Steven Shane [ORNL; BRITTONJr., CHARLES L. [Oak Ridge National Laboratory (ORNL); Marlino, Laura D [ORNL; Mantooth, Alan [University of Arkansas; Francis, Matt [APEI, Inc.; Shepherd, Dr. Paul [University of Arkansas; Glover, Dr. Michael [University of Arkansas; Podar, Mircea [ORNL; Perez, M [University of Arkansas; Mcnutt, Tyler [APEI, Inc.; Whitaker, Mr. Bret [APEI, Inc.; Cole, Mr. Zach [APEI, Inc.

2014-01-01T23:59:59.000Z

86

Thermomechanical Performance of Si-Ti-C-O and Sintered SiC Fiber-Bonded Ceramics at High Temperatures  

SciTech Connect (OSTI)

The stress-temperature-lifetime response of Si-Ti-C-O fiber-bonded ceramic (Tyrannohex ) and sintered SiC fiber-bonded ceramic (SA-Tyrannohex ) materials were investigated in air from 500 to 1150 C and 500 to 1400 C, respectively. The apparent threshold stress of Si-Ti-C-O fiber-bonded ceramic was about 175 MPa in the 500-1150 C temperature range. When the applied stress of the sintered SiC fiber-bonded ceramic was below an apparent threshold stress (e.g., ~225MPa) for tests conducted 1150 C, no failures were observed for lifetimes up to 1000h. In the case of sintered SiC fiber-bonded ceramic, at the temperature of 1300 C, the apparent threshold stress decreased to 175 MPa. The decrease in strength seemed to be caused by grain growth which was confirmed from the SEM fractography. Both fiber-bonded ceramics exhibited much higher durability than a commercial SiC/SiC composite at temperatures above 500 C. In addition, results suggested that the sintered SiC fiber-bonded ceramic (SA-Tyrannohex) is more stable than a Hi-Nicalon/MI SiC composite with BN/SiC fiber coating at temperatures above 1300 C.

Matsunaga, Tadashi [ORNL; Lin, Hua-Tay [ORNL; Singh, Mrityunjay [NASA-Glenn Research Center, Cleveland; Kajii, Shinji [Ube Industries, Ltd.; Matsunaga, Kenji [Ube Industries, Ltd.; Ishikawa, Toshihiro [Ube Industries, Ltd.

2011-01-01T23:59:59.000Z

87

Lifetime Response of a Hi-Nicalon Fiber-Reinforced Melt-Infiltrated SiC Matrix Composites  

SciTech Connect (OSTI)

Lifetime studies in four-point flexure were performed on a Hi-NicalonTM fiber-reinforced SiC matrix composite over a temperature range of 700 degrees to 1150 degrees C in air. The composite consisted of ~40 vol. % Hi-NicalonTM fiber (8-harness weave) with a 0.5 Mu-m BN fiber coating and a melt-infiltration SiC matrix wand was tested with as-machined surfaces. Lifetime results indicated that the composite exhibited a stress-dependent lifetime at stress levels above an apparent fatigue limit, similar to the trend observed in CG-NicalonTM fiber reinforced CVI SiC matrix composites. At less than or equal to 950 degrees C, the lifetimes of Hi-Nicalon/MI SiC composites decreased with increasing applied stress level and test temperature. However, the lifetimes were extended as test temperature increased from 950 degees to 1150 degrees C as a result of surface crack sealing due to glass formation by the oxidation of Mi SiC matrix. The lifetime governing processes were, in general, attributed to the progressive oxidation of BN fiber coating and formation of glassy phase, which formed a strong bond between fiber and matrix, resulting in embrittlement of the composite with time.

Becher, P.F.; Lin, H.T.; Singh, M.

1999-04-25T23:59:59.000Z

88

Step-edge-induced resistance anisotropy in quasi-free-standing bilayer chemical vapor deposition graphene on SiC  

SciTech Connect (OSTI)

The transport properties of quasi-free-standing (QFS) bilayer graphene on SiC depend on a range of scattering mechanisms. Most of them are isotropic in nature. However, the SiC substrate morphology marked by a distinctive pattern of the terraces gives rise to an anisotropy in graphene's sheet resistance, which may be considered an additional scattering mechanism. At a technological level, the growth-preceding in situ etching of the SiC surface promotes step bunching which results in macro steps ?10?nm in height. In this report, we study the qualitative and quantitative effects of SiC steps edges on the resistance of epitaxial graphene grown by chemical vapor deposition. We experimentally determine the value of step edge resistivity in hydrogen-intercalated QFS-bilayer graphene to be ?190???m for step height h{sub S}?=?10?nm and provide proof that it cannot originate from mechanical deformation of graphene but is likely to arise from lowered carrier concentration in the step area. Our results are confronted with the previously reported values of the step edge resistivity in monolayer graphene over SiC atomic steps. In our analysis, we focus on large-scale, statistical properties to foster the scalable technology of industrial graphene for electronics and sensor applications.

Ciuk, Tymoteusz [Institute of Electronic Materials Technology, Wolczynska 133, 01-919 Warsaw (Poland); Institute of Microelectronics and Optoelectronics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw (Poland); Cakmakyapan, Semih; Ozbay, Ekmel [Department of Electrical and Electronics Engineering, Department of Physics, Nanotechnology Research Center, Bilkent University, 06800 Bilkent, Ankara (Turkey); Caban, Piotr; Grodecki, Kacper; Pasternak, Iwona; Strupinski, Wlodek, E-mail: wlodek.strupinski@itme.edu.pl [Institute of Electronic Materials Technology, Wolczynska 133, 01-919 Warsaw (Poland); Krajewska, Aleksandra [Institute of Electronic Materials Technology, Wolczynska 133, 01-919 Warsaw (Poland); Institute of Optoelectronics, Military University of Technology, Gen. S. Kaliskiego 2, 00-908 Warsaw (Poland); Szmidt, Jan [Institute of Microelectronics and Optoelectronics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw (Poland)

2014-09-28T23:59:59.000Z

89

Active & passive oxidation of dense SiC & Al?O? composites  

E-Print Network [OSTI]

that the initial rate of oxidation is dependent on the surface reaction between SiC and oxygen till a su6icient thickness of Si02 was formed to produce a diffusion - controlled mechanism. The rate determining step in the passive oxidation was the diffusion... of oxidation. Passive oxidation (in air and oxygen) resulted in a gain in weight, which was determined to be higher for higher partial pressures of oxygen, and led to the formation of an aluminosilicate layer on the surface of the specimen. The composition...

Malhotra, Rohit

1991-01-01T23:59:59.000Z

90

Characterization Of Superconducting Samples With SIC System For Thin Film Developments: Status And Recent Results  

SciTech Connect (OSTI)

Within any thin film development program directed towards SRF accelerating structures, there is a need for an RF characterization device that can provide information about RF properties of small samples. The current installation of the RF characterization device at Jefferson Lab is Surface Impedance Characterization (SIC) system. The data acquisition environment for the system has recently been improved to allow for automated measurement, and the system has been routinely used for characterization of bulk Nb, films of Nb on Cu, MgB{sub 2}, NbTiN, Nb{sub 3}Sn films, etc. We present some of the recent results that illustrate present capabilities and limitations of the system.

Phillips, H. Lawrence [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Reece, Charles E. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Valente-Feliciano, Anne-Marie [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Xiao, Binping [Brookhaven National Lab, Upton, NY (United States); Eremeev, Grigory V. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

2014-02-01T23:59:59.000Z

91

912 IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, VOL. 47, NO. 2, MARCH/APRIL 2011 Impact of SiC Devices on Hybrid Electric and  

E-Print Network [OSTI]

; in particular, the size of the battery bank can be reduced for optimum design. Index Terms--Efficiency, hybrid (SiC) devices as battery interface, motor controller, etc., in a hybrid electric vehicle (HEV]­[5]. The application of SiC devices (as battery interface, motor controller, etc.) in a HEV has merit because

Tolbert, Leon M.

92

Formation of a Buffer Layer for Graphene on C-face SiC{0001} Guowei He, N. Srivastava, and R. M. Feenstra  

E-Print Network [OSTI]

1 Formation of a Buffer Layer for Graphene on C-face SiC{0001} Guowei He, N. Srivastava, and R. M. Feenstra Dept. Physics, Carnegie Mellon University, Pittsburgh, PA 15213 Abstract Graphene films prepared a graphene-like "buffer layer" that forms between the graphene and the SiC, similar to that observed on Si

Feenstra, Randall

93

Characterization and photoluminescence of Co-doped SiC films  

SciTech Connect (OSTI)

Co-doped SiC films are fabricated on Si (100) substrates by radio frequency magnetron sputtering, and the crystal structure, composition, element valences, local structure, and photoluminescence of the films are studied. Crystal structure analysis identifies the film structure as 3C-SiC and shows that the Co dopant atoms form CoSi secondary phase compounds in the films. The composition and element valence analysis show that the Co dopant atoms substituting for C sites in the SiC lattice exist in the form of Co{sup 2+} ions, and that C clusters are present in the films, which increase in amount with increasing Co dopant concentration. The analysis of local structure reveals that Co clusters, CoO and Co{sub 3}O{sub 4}, are not present in the films, and CoSi secondary phase compounds exist. All of the films show a violet photoluminescence peak located at 413 nm, which becomes stronger with increased Co dopant concentration and annealing temperature, and is found to originate from the C clusters.

Sun, Xianke [School of Material Science and Engineering, Tianjin University, Tianjin 300072, China and Tianjin Key Laboratory for Photoelectric Materials and Devices, Tianjin 300384 (China)] [School of Material Science and Engineering, Tianjin University, Tianjin 300072, China and Tianjin Key Laboratory for Photoelectric Materials and Devices, Tianjin 300384 (China); Jin, Xin; Wang, Shiqi; Liu, Huarui; Sun, Peng; An, Yukai [Tianjin Key Laboratory for Photoelectric Materials and Devices, Tianjin University of Technology, Tianjin 300384, China and School of Material Science and Engineering, Tianjin University of Technology, Tianjin 300384 (China)] [Tianjin Key Laboratory for Photoelectric Materials and Devices, Tianjin University of Technology, Tianjin 300384, China and School of Material Science and Engineering, Tianjin University of Technology, Tianjin 300384 (China); Guo, Ruisong [School of Material Science and Engineering, Tianjin University, Tianjin 300072 (China)] [School of Material Science and Engineering, Tianjin University, Tianjin 300072 (China); Liu, Jiwen [School of Material Science and Engineering, Tianjin University of Technology, Tianjin 300384, China, Tianjin Key Laboratory for Photoelectric Materials and Devices, Tianjin University of Technology, Tianjin 300384, China, and School of Material Science and Engineering, Tianjin University, Tianjin 300072 (China)] [School of Material Science and Engineering, Tianjin University of Technology, Tianjin 300384, China, Tianjin Key Laboratory for Photoelectric Materials and Devices, Tianjin University of Technology, Tianjin 300384, China, and School of Material Science and Engineering, Tianjin University, Tianjin 300072 (China)

2013-11-15T23:59:59.000Z

94

Power Loss Estimation in SiC Power BJTs Cheng, Chen, SATIE, France, cheng.chen@satie.ens-cachan.fr  

E-Print Network [OSTI]

Power Loss Estimation in SiC Power BJTs Cheng, Chen, SATIE, France, cheng, in the first step, presents the electrical and calorimetric power loss measurement [6]. A comparative study with a Tektronix TCP0030 probe (120MHz). Fig. 1. Circuit diagram of the test setup. 3. Power loss measurement

Paris-Sud XI, Université de

95

Growth of crystalline X-Sic on Si at reduced temperatures by chemical vapor deposition from `silacycllobutane  

E-Print Network [OSTI]

, and TPS resulted in single crystal layer" on Si ( 111) only up to a thickness of 2000 h;. Highly orientedGrowth of crystalline X-Sic on Si at reduced temperatures by chemical vapor deposition from grown by SCB at a temperature of 800 "C. The progress of SiC/Si heterojunction devices has been C3HsSiH2

Steckl, Andrew J.

96

Group X  

SciTech Connect (OSTI)

This project is currently under contract for research through the Department of Homeland Security until 2011. The group I was responsible for studying has to remain confidential so as not to affect the current project. All dates, reference links and authors, and other distinguishing characteristics of the original group have been removed from this report. All references to the name of this group or the individual splinter groups has been changed to 'Group X'. I have been collecting texts from a variety of sources intended for the use of recruiting and radicalizing members for Group X splinter groups for the purpose of researching the motivation and intent of leaders of those groups and their influence over the likelihood of group radicalization. This work included visiting many Group X websites to find information on splinter group leaders and finding their statements to new and old members. This proved difficult because the splinter groups of Group X are united in beliefs, but differ in public opinion. They are eager to tear each other down, prove their superiority, and yet remain anonymous. After a few weeks of intense searching, a list of eight recruiting texts and eight radicalizing texts from a variety of Group X leaders were compiled.

Fields, Susannah

2007-08-16T23:59:59.000Z

97

CARBON STARS WITH INFRARED SPECTRA IN GROUP P OF THE IRAS/LRS DATABASE  

SciTech Connect (OSTI)

Sources with infrared spectra in Group P of the IRAS/LRS database all show polycyclic aromatic hydrocarbon features. They are often planetary nebulae, H II regions, reflection/dark nebulae, Wolf-Rayet stars, or external galaxies. However, we noted that some carbon stars are also included in this group. We searched for and investigated all infrared spectra in Group P of the IRAS/LRS database. Finally, we found 11 previously known carbon stars and identified 8 new candidate carbon stars in Group P. Infrared spectra of these stars may present the 11.2 {mu}m SiC emission features indicative of their carbon-rich properties.

Chen, P. S. [National Astronomical Observatories/Yunnan Observatory and Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011 (China); Yang, X. H., E-mail: chenps@ynao.ac.cn, E-mail: yangxh@cqu.edu.cn [Department of Physics, Chongqing University, Chongqing 400044 (China)

2012-10-01T23:59:59.000Z

98

The oxidation behavior of SiC sintered with Al-B-C and improved oxidation resistance via heat treatments  

SciTech Connect (OSTI)

The oxidation behavior of high strength and high toughness SiC, sintered with Al, B, and C (ABC-SiC), was examined. Kinetic data were acquired and the parabolic rate constant for oxidation was determined and compared with literature data on various SiC materials. The role of secondary phases on the oxide morphology was explored. ABC-SiC was compared to commercially available SiC, Hexoloy, and SiC sintered with 10% yttrium aluminum garnet (YAG). Two-step sintering (pre-coarsening) was employed with holds for 48 hours at 600--1,600 C, prior to the typical hot-pressing conditions of 1,900 C for 1 hour, to change the chemistry and reduce the number of bubbles in the silica scale. The effects on the oxide thickness and integrity was examined as a function of the precoarsening heat treatment temperature. Additionally, the hot-pressed ABC-SiC was subjected to heat treatments (anneals) at 1,800 C for 1 hour in nitrogen, Ar, and vacuum environments, and the effects on subsequent oxidation were evaluated. The Ar and vacuum heat treatments dramatically improved the oxidation resistance of ABC-SiC. Finally, reoxidation experiments were performed to try to alter the surface chemistry of the SiC to improve the oxidation resistance. The four-point bend strengths and two-parameter Weibull plots of the most successful heat treatments were compared with the standard ABC-SiC to ensure that significant degradation did not result from altering the processing of the material.

Sixta, M. [Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Mineral Engineering]|[Lawrence Berkeley National Lab., CA (United States). Materials Science Div.

1997-12-01T23:59:59.000Z

99

Vickers microindentation toughness of a sintered SiC in the median-crack regime  

SciTech Connect (OSTI)

The Vickers microindentation method for the determination of the fracture toughness of ceramics was investigated in the median crack regime for a sintered alpha SiC. The results are compared with fracture toughness measurements by conventional fracture mechanics technique and also with the reported indentation toughness for the low-load Palmqvist crack regime. Indentation toughnesses in the median crack regime vary widely depending on the choice of the specific equation which is applied. The indentation toughnesses are also load (crack length) dependent. A decreasing R-curve trend results, in contradiction to the flat R-curve that has been observed with conventional fracture mechanics techniques. It is concluded that the Vickers microindentation method is not a reliable technique for the determination of the fracture toughness of ceramics in the median crack regime.

Ghosh, Asish; Kobayashi, A.S. (Washington Univ., Seattle, WA (United States). Coll. of Engineering); Li, Zhuang (Argonne National Lab., IL (United States)); Henager, C.H. Jr. (Pacific Northwest Lab., Richland, WA (United States)); Bradt, R.C. (Nevada Univ., Reno, NV (United States). Mackay School of Mines)

1991-01-01T23:59:59.000Z

100

Effect of heat treatment on microstructure and interface of SiC particle reinforced 2124 Al matrix composite  

SciTech Connect (OSTI)

The microstructure and interface between metal matrix and ceramic reinforcement of a composite play an important role in improving its properties. In the present investigation, the interface and intermetallic compound present in the samples were characterized to understand structural stability at an elevated temperature. Aluminum based 2124 alloy with 10 wt.% silicon carbide (SiC) particle reinforced composite was prepared through vortex method and the solid ingot was deformed by hot rolling for better particle distribution. Heat treatment of the composite was carried out at 575 °C with varying holding time from 1 to 48 h followed by water quenching. In this study, the microstructure and interface of the SiC particle reinforced Al based composites have been studied using optical microscopy, scanning electron microscopy (SEM) coupled with energy dispersive X-ray spectroscopy (EDS), electron probe micro-analyzer (EPMA) associated with wavelength dispersive spectroscopy (WDS) and transmission electron microscopy (TEM) to identify the precipitate and intermetallic phases that are formed during heat treatment. The SiC particles are uniformly distributed in the aluminum matrix. The microstructure analyses of Al–SiC composite after heat treatment reveal that a wide range of dispersed phases are formed at grain boundary and surrounding the SiC particles. The energy dispersive X-ray spectroscopy and wavelength dispersive spectroscopy analyses confirm that finely dispersed phases are CuAl{sub 2} and CuMgAl{sub 2} intermetallic and large spherical phases are Fe{sub 2}SiAl{sub 8} or Al{sub 15}(Fe,Mn){sub 3}Si. It is also observed that a continuous layer enriched with Cu and Mg of thickness 50–80 nm is formed at the interface in between Al and SiC particles. EDS analysis also confirms that Cu and Mg are segregated at the interface of the composite while no carbide is identified at the interface. - Highlights: • The composite was successfully heat treated at 575°C for 1-48 hrs. • A layer of 50-75 nm is formed at interface after heat treatment. • No Carbide formation and SiC dissolution is observed at this temperature. • MgAl{sub 2}O{sub 4}, CuMgAl{sub 2} phases are segregated at interface of Al-SiC composite. • Mg and Cu are also segregated at near to the grain boundary.

Mandal, Durbadal, E-mail: durbadal73@yahoo.co.in [MEF Division, CSIR-National Metallurgical Laboratory, Jamshedpur 831007 (India); Viswanathan, Srinath [Dept of Metallurgical and Materials Engineering, University of Alabama, Tuscaloosa, AL (United States)

2013-11-15T23:59:59.000Z

Note: This page contains sample records for the topic "groups 2-digit sic" from the National Library of EnergyBeta (NLEBeta).
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101

Corrosion of SiC and oxide-composite ceramics by a simulated steam-reformer atmosphere  

SciTech Connect (OSTI)

To achieve higher process efficiency by using pressurized reactants and/or heat transfer fluids, the US DOE is promoting development of high-pressure heat exchanger systems under cost-sharing agreements with industrial contractors. The steam reformer would contain more than 600 tubes. Because the combination of high temperature and pressure differential of 12.7 kg/cm{sup 2} (180 psig) across the tube wall is too severe for metallic tubes, ceramic materials are being considered for reformer tubes. Their use is expected to increase the efficiency of steam reformers by about 19%. At ORNL, four SiC ceramics, a SiC-TiB{sub 2} composite, a Si{sub 3}N{sub 4}-bonded SiC ceramic, and two alumina-matrix composites were selected as candidate materials for heat exchanger/steam-reformer tubes. These commercially available materials were exposed to a simulated steam-reformer atmosphere for up to 2000 h at 1260{degrees}C to assess their corrosion behavior and the effect of the exposure on their flexure strength (in air) at 20 and 1260{degrees}C. The approximate partial pressures of the constituents of the gas mixture at 1 atm total pressure were 0.54 H{sub 2}, 0.13 CO, 0.03 CO{sub 2}m 0.004 CH{sub 4}, and 0.30 H{sub 2}O. All but one material had net weight gains during the exposure test. The flexure strengths of the SiC and Si{sub 3}N{sub 4} ceramics and the SiC-TiB{sub 2} composite at 20 and 1260{degrees}C were not changed significantly by corrosion. The strengths of the alumina-matrix composites were decreased by corrosion; however, the strength of one of these (reinforced with SiC whiskers) was still higher than that of any other material after 500 h. The other alumina composite (containing SiC particles) exhibited the largest strength decrease of any material. The strength retention of the SiC ceramics and the SiC-TiB{sub 2} composite and the strength loss of the composites were associated with surface layers caused by corrosion. 12 refs., 12 figs., 4 tabs.

Federer, J.I.; Kim, H.E.; Moorhead, A.J.

1991-09-01T23:59:59.000Z

102

Automata groups  

E-Print Network [OSTI]

-presentation. We also find the L-presentation for several other groups generated by three-state automata, and we describe the defining relations in the Grigorchuk groups G_w. In case when the sequence w is almost periodic these relations provide an L...

Muntyan, Yevgen

2010-01-16T23:59:59.000Z

103

Electrodeposited composite coating of Ni-W-P with nano-sized rod- and spherical-shaped SiC particles  

SciTech Connect (OSTI)

In this research, Ni-W-P-SiC nanocomposite coatings are electrodeposited from the plating solution containing suspension of nano-sized spherical- and rod-shaped SiC particles. The influence of SiC particle charge, applied current density, surfactant addition and the particle shape on the SiC incorporation rate has been studied. The phase structure, microhardness and wear resistance of Ni-W-P-SiC nanocomposite coatings were evaluated using X-ray diffraction (XRD), microhardness tester and wear test apparatus. The surface morphology of the produced coatings and worn surfaces has been investigated using scanning electron microscope (SEM). Additionally, the composite coating exhibited higher hardness and wear resistance than the pure Ni-W-P alloy. Regardless the particle shape, the mechanical characteristics of composite coatings are improved with increasing of SiC wt.% into the matrix. The corrosion behavior of the produced coatings was studied using anodic polarization measurements. The nanocomposite coating incorporating SiC rods exhibited higher mechanical and corrosion performance compared with deposits with spherical SiC nano-particles.

Aal, A. Abdel [Central Metallurgical R and D Institute (CMRDI), P.O. Box 87, Hellwan, Cairo (Egypt)], E-mail: foralsayed@gmail.com; El-Sheikh, S.M.; Ahmed, Y.M.Z. [Central Metallurgical R and D Institute (CMRDI), P.O. Box 87, Hellwan, Cairo (Egypt)

2009-01-08T23:59:59.000Z

104

Spectrally enhancing near-field radiative heat transfer by exciting magnetic polariton in SiC gratings  

E-Print Network [OSTI]

In the present work, we theoretically demonstrate, for the first time, that near field radiative transport between 1D periodic grating microstructures separated by subwavelength vacuum gaps can be significantly enhanced by exciting magnetic resonance or polariton. Fluctuational electrodynamics that incorporates scattering matrix theory with rigorous coupled wave analysis is employed to exactly calculate the near field radiative heat flux between two SiC gratings. Besides the well known coupled surface phonon polaritons (SPhP), an additional spectral radiative heat flux peak, which is due to magnetic polariton, is found within the phonon absorption band of SiC. The mechanisms, behaviors and interplays between magnetic polariton, coupled SPhP, single interface SPhP, and Wood's anomaly in the near field radiative transport are elucidated in detail. The findings will open up a new way to control near field radiative heat transfer by magnetic resonance with micro or nanostructured metamaterials.

Yang, Yue

2015-01-01T23:59:59.000Z

105

Interface defects in SiC power MOSFETs - An electrically detected magnetic resonance study based on spin dependent recombination  

SciTech Connect (OSTI)

This study presents electrically detected magnetic resonance (EDMR) measurements on a silicon carbide (SiC) MOSFET having the structure of a double-diffused silicon MOSFET (DMOS). The resonance pattern of a SiC DMOS was measured by monitoring the change of the recombination current between the source/body and the drain. The amplitude of the response has a maximum when the device is biased in depletion due to the equal concentrations of electrons and holes at the interface resulting in the most efficient recombination. The measured anisotropic g-tensor has axial symmetry with g{sub ?} = 2.0051(4) (B ? c-axis), and g{sub ?} = 2.0029(4) (B? c-axis) and the pattern shows several hyperfine (HF) peaks. We tentatively identify the observed defect as a silicon vacancy located directly at the interface.

Gruber, Gernot [KAI GmbH, Europastrasse 8, 9500 Villach, Austria and Graz University of Technology - Institute of Solid State Physics, Petersgasse 16, 8020 Graz (Austria); Hadley, Peter [Graz University of Technology - Institute of Solid State Physics, Petersgasse 16, 8020 Graz (Austria); Koch, Markus [Graz University of Technology - Institute of Experimental Physics, Petersgasse 16, 8020 Graz (Austria); Peters, Dethard [Infineon Technologies, Schottkystrasse 10, 91058 Erlangen (Germany); Aichinger, Thomas [Infineon Technologies, Siemensstrasse 2, 9500 Villach (Australia)

2014-02-21T23:59:59.000Z

106

A TEM quantitative evaluation of strengthening in an Mg-RE alloy reinforced with SiC  

SciTech Connect (OSTI)

Magnesium alloys containing rare earth elements are known to have high specific strength, good creep and corrosion resistance up to 523 K. The addition of SiC ceramic particles strengthens the metal matrix composite resulting in better wear and creep resistance while maintaining good machinability. The role of the reinforcement particles in enhancing strength can be quantitatively evaluated using transmission electron microscopy (TEM). This paper presents a quantitative evaluation of the different strengthening contributions, determined through TEM inspections, in an SiC Mg-RE composite alloy containing yttrium, neodymium, gadolinium and dysprosium. Compression tests at temperatures ranging between 290 and 573 K were carried out. The microstructure strengthening mechanism was studied for all the compression conditions. Strengthening was compared to the mechanical results and the way the different contributions were combined is also discussed and justified. - Research Highlights: {yields} TEM yield strengthening terms evaluation on a Mg-RE SiC alloy. {yields} The evaluation has been extended to different compression temperature conditions. {yields} Linear and Quadratic sum has been proposed and validated. {yields} Hall-Petch was found to be the most prominent strengthening contributions.

Cabibbo, Marcello, E-mail: m.cabibbo@univpm.it; Spigarelli, Stefano

2011-10-15T23:59:59.000Z

107

Hydrogen intercalation of single and multiple layer graphene synthesized on Si-terminated SiC(0001) surface  

SciTech Connect (OSTI)

Ab initio density functional theory simulations were used to investigate the influence of hydrogen intercalation on the electronic properties of single and multiple graphene layers deposited on the SiC(0001) surface (Si-face). It is shown that single carbon layer, known as a buffer layer, covalently bound to the SiC substrate, is liberated after hydrogen intercalation, showing characteristic Dirac cones in the band structure. This is in agreement with the results of angle resolved photoelectron spectroscopy measurements of hydrogen intercalation of SiC-graphene samples. In contrast to that hydrogen intercalation has limited impact on the multiple sheet graphene, deposited on Si-terminated SiC surface. The covalently bound buffer layer is liberated attaining its graphene like structure and dispersion relation typical for multilayer graphene. Nevertheless, before and after intercalation, the four layer graphene preserved the following dispersion relations in the vicinity of K point: linear for (AAAA) stacking, direct parabolic for Bernal (ABAB) stacking and “wizard hat” parabolic for rhombohedral (ABCA) stacking.

So?tys, Jakub; Piechota, Jacek; Ptasinska, Maria [Interdisciplinary Centre for Mathematical and Computational Modelling, University of Warsaw, Pawi?skiego 5a, 02-106 Warsaw (Poland); Krukowski, Stanis?aw, E-mail: stach@unipress.waw.pl [Interdisciplinary Centre for Mathematical and Computational Modelling, University of Warsaw, Pawi?skiego 5a, 02-106 Warsaw (Poland); Institute of High Pressure Physics, Polish Academy of Sciences, Soko?owska 29/37, 01-142 Warsaw (Poland)

2014-08-28T23:59:59.000Z

108

Damage Profiles and Ion Distribution in Pt-irradiated SiC  

SciTech Connect (OSTI)

Single crystalline 6H-SiC samples were irradiated at 150 K with 2 MeV Pt ions. The local volume swelling was determined by electron energy loss spectroscopy (EELS), and a nearly sigmoidal dependence on irradiation dose is observed. The disorder profiles and ion distribution were determined by Rutherford backscattering spectrometry (RBS), transmission electron microscopy, and secondary ion mass spectrometry. Since the volume swelling reaches 12% over the damage region at high ion fluence, the effect of lattice expansion is considered and corrected for in the analysis of RBS spectra to obtain depth profiles. Projectile and damage profiles are estimated by SRIM (Stopping and Range of Ions in Matter).When compared with the measured profiles, the SRIM code predictions of ion distribution and the damage profiles are underestimated due to significant overestimation of the electronic stopping power for the slow heavy Pt ions. By utilizing the reciprocity method, which is based on the invariance of the inelastic energy loss in ion-solid collisions against interchange of projectile and target atom, a much lower electronic stopping power is deduced. A simple approach, based on reducing the density of SiC target in SRIM simulation, is proposed to compensate the overestimated SRIM electronic stopping power values, which results in improved agreement between predicted and measured damage profiles and ion ranges.

Xue, Haizhou; Zhang, Yanwen; Zhu, Zihua; Zhang, Weiming; Bae, In-Tae; Weber, William J.

2012-09-01T23:59:59.000Z

109

Irradiation of SiC Clad Fuel Rods in the HFIR  

SciTech Connect (OSTI)

During 2009 and- 2010, new test capability for the High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory (ORNL) was developed that allows testing of advanced nuclear fuels and cladding under prototypic light-water-reactor (LWR) operating conditions (i.e., cladding and fuel temperatures, fuel average linear heat generation rates, and cladding fluence). For the initial experiments for this test program, ORNL teamed with commercial fuel/cladding vendors who have developed an advanced composite-wound SiC cladding material for possible use in LWRs. The first experiment, containing SiC-clad UN fuel, was inserted in HFIR in June 2010, and the second experiment, containing SiC-clad UO2 fuel, was inserted in October 2010. Two capsules (one containing UN fuel and the other UO2) were withdrawn from their respective assemblies in November 2011 at an estimated fuel burnup of approximately 10 GWd/MTHM; and two capsules (one containing UN fuel and the other UO2) were withdrawn from their respective assemblies in February 2013 at an estimated fuel burnup of approximately 20 GWd/MTHM. These capsules are currently awaiting PIE. This paper will describe the experiment, as-run operating conditions for these capsules, and current PIE plans and status.

Ott, Larry J [ORNL] [ORNL; Bell, Gary L [ORNL] [ORNL; Ellis, Ronald James [ORNL] [ORNL; McDuffee, Joel Lee [ORNL] [ORNL; Morris, Robert Noel [ORNL] [ORNL

2013-01-01T23:59:59.000Z

110

Stress-temperature-lifetime response of nicalon fiber-reinforced SiC composites in air  

SciTech Connect (OSTI)

Time-to-failure tests were conducted in four-point flexure and in air as a function of stress levels and temperatures to study the lifetime response of various Nicalon fiber-reinforced SiC (designated as Nic/SiC) composites with a graphitic interfacial coating. The results indicated that all of the Nic/SiC composites exhibit a similar stress-dependent failure at applied stress greater than a threshold value. In this case, the lifetimes of the composites increased with decrease in both stress level and test temperature. The lifetime of the composites appeared to be relatively insensitive to the thickness of graphitic interface layer and was enhanced somewhat by the addition of oxidation inhibitors. Electron microscopy and oxidation studies indicated that the life of the Nic/SiC composites was governed by the oxidation of the graphitic interfaces and the on of glass(es) in composites due to the oxidation of the fiber and matrix, inhibitor phases.

Lin, Hua-Tay; Becher, P.F.

1996-02-01T23:59:59.000Z

111

Application of organosilicon pre-sic polymer technology to optimize rapid prototyping of ceramic components  

SciTech Connect (OSTI)

Developments of applications of advanced ceramics e.g., SiC, Si{sub 3}N{sub 4}, CMCs need to be on a faster track than what the current processing technologies can afford. Rapid reduction in time to market of new and complex products can be achieved by using Rapid Prototyping and Manufacturing Technologies (RP&M) e.g., 3D-printing, selective laser sintering, stereolithography etc. These technologies will help advanced ceramics meet the performance challenges at an affordable price with reliable manufacturing technologies. The key variables of the RP&M technologies for ceramics are the nature of the polymer carrier and/or the binder, and the powder. Selection and/or the production of a proper class of polymer carrier/binder, understanding their impact on the processing of ceramics such as polymer-powder interaction, speed of hardening the green body in a controlled manner, ability to retain shape during forming and consolidation, delivering desirable properties at the end, are crucial to develop the low cost, high quality ceramic products. Organosilicon pre-SiC polymer technology route to advanced ceramics is currently being commercialized by Dow Corning. Methods to use this class of polymer as a processing aid in developing potentially better RP&M technologies to make better ceramics have been proposed in this work.

Saha, C.K.; Zank, G. [Dow Corning Corporation, Midland, MI (United States); Ghosh, A. [Philips Display Components Co., Ann Arbor, MI (United States)

1995-12-01T23:59:59.000Z

112

Strain-engineered band parameters of graphene-like SiC monolayer  

SciTech Connect (OSTI)

Using full-potential density functional theory (DFT) calculations we show that the band gap and effective masses of charge carriers in SiC monolayer (ML-SiC) in graphene-like two-dimensional honeycomb structure are tunable by strain engineering. ML-SiC was found to preserve its flat 2D graphene-like structure under compressive strain up to 7%. A transition from indirect-to-direct gap-phase is predicted to occur for a strain value lying within the interval (1.11 %, 1.76%). In both gap-phases band gap decreases with increasing strain, although the rate of decrease is different in the two gap-phases. Effective mass of electrons show a non-linearly decreasing trend with increasing tensile strain in the direct gap-phase. The strain-sensitive properties of ML-SiC, may find applications in future strain-sensors, nanoelectromechanical systems (NEMS) and nano-optomechanical systems (NOMS) and other nano-devices.

Behera, Harihar, E-mail: harihar@theglocaluniversity.in [School of Technology, The Glocal University, Mirzapur Pole, Dist.-Saharanpur, U.P.-247001, India and Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai-400076 (India); Mukhopadhyay, Gautam, E-mail: gmukh@phy.iitb.ac.in [Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai-400076 (India)

2014-10-06T23:59:59.000Z

113

Creep performance of candidate SiC and Si{sub 3}N{sub 4} materials for land-based, gas turbine engine components  

SciTech Connect (OSTI)

Tensile creep-rupture of a commercial gas pressure sintered Si3N4 and a sintered SiC is examined at 1038, 1150, and 1350 C. These 2 ceramics are candidates for nozzles and combustor tiles that are to be retrofitted in land-based gas turbine engines, and there is interest in their high temperature performance over service times {ge} 10,000 h (14 months). For this long lifetime, a static tensile stress of 300 MPa at 1038/1150 C and 125 Mpa at 1350 C cannot be exceeded for Si3N4; for SiC, the corresponding numbers are 300 Mpa at 1038 C, 250 MPa at 1150 C, and 180 MPa at 1350 C. Creep-stress exponents for Si3N4 are 33, 17, and 8 for 1038, 1150, 1350 C; fatigue- stress exponents are equivalent to creep exponents, suggesting that the fatigue mechanism causing fracture is related to the creep mechanism. Little success was obtained in producing failure in SiC after several decades of time through exposure to appropriate tensile stress; if failure did not occur on loading, then the SiC specimens most often did not creep-rupture. Creep-stress exponents for the SiC were determined to be 57, 27, and 11 for 1038, 1150, and 1350 C. For SiC, the fatigue-stress exponents did not correlate as well with creep-stress exponents. Failures that occurred in the SiC were a result of slow crack growth that initiated from the surface.

Wereszczak, A.A.; Kirkland, T.P.

1996-03-01T23:59:59.000Z

114

FORMATION OF SiC GRAINS IN PULSATION-ENHANCED DUST-DRIVEN WIND AROUND CARBON-RICH ASYMPTOTIC GIANT BRANCH STARS  

SciTech Connect (OSTI)

We investigate the formation of silicon carbide (SiC) grains in the framework of dust-driven wind around pulsating carbon-rich asymptotic giant branch (C-rich AGB) stars to reveal not only the amount but also the size distribution. Two cases are considered for the nucleation process: one is the local thermal equilibrium (LTE) case where the vibration temperature of SiC clusters T{sub v} is equal to the gas temperature as usual, and another is the non-LTE case in which T{sub v} is assumed to be the same as the temperature of small SiC grains. The results of the hydrodynamical calculations for a model with stellar parameters of mass M{sub *} = 1.0 M{sub Sun }, luminosity L{sub *} = 10{sup 4} L{sub Sun }, effective temperature T{sub eff} = 2600 K, C/O ratio = 1.4, and pulsation period P = 650 days show the following: in the LTE case, SiC grains condense in accelerated outflowing gas after the formation of carbon grains, and the resulting averaged mass ratio of SiC to carbon grains of {approx}10{sup -8} is too small to reproduce the value of 0.01-0.3, which is inferred from the radiative transfer models. On the other hand, in the non-LTE case, the formation region of the SiC grains is more internal and/or almost identical to that of the carbon grains due to the so-called inverse greenhouse effect. The mass ratio of SiC to carbon grains averaged at the outer boundary ranges from 0.098 to 0.23 for the sticking probability {alpha}{sub s} = 0.1-1.0. The size distributions with the peak at {approx}0.2-0.3 {mu}m in radius cover the range of size derived from the analysis of the presolar SiC grains. Thus, the difference between the temperatures of the small cluster and gas plays a crucial role in the formation process of SiC grains around C-rich AGB stars, and this aspect should be explored for the formation process of dust grains in astrophysical environments.

Yasuda, Yuki; Kozasa, Takashi, E-mail: yuki@antares-a.sci.hokudai.ac.jp [Department of Natural History Sciences, Faculty of Science, Hokkaido University, Sapporo 060-0810 (Japan)

2012-02-01T23:59:59.000Z

115

Low-temperature, site selective graphitization of SiC via ion implantation and pulsed laser annealing  

SciTech Connect (OSTI)

A technique is presented to selectively graphitize regions of SiC by ion implantation and pulsed laser annealing (PLA). Nanoscale features are patterned over large areas by multi-ion beam lithography and subsequently converted to few-layer graphene via PLA in air. Graphitization occurs only where ions have been implanted and without elevating the temperature of the surrounding substrate. Samples were characterized using Raman spectroscopy, ion scattering/channeling, SEM, and AFM, from which the degree of graphitization was determined to vary with implantation species, damage and dose, laser fluence, and pulsing. Contrasting growth regimes and graphitization mechanisms during PLA are discussed.

Lemaitre, Maxime G. [Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32601 (United States); Tongay, Sefaattin [Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32601 (United States); Department of Physics, University of Florida, Gainesville, Florida 32601 (United States); Department of Materials Science and Engineering, University of California, Berkeley, California 94720 (United States); Nanoscience Institute for Medical and Engineering Technology, University of Florida, Gainesville, Florida 32601 (United States); Wang, Xiaotie [Department of Chemical Engineering, University of Florida, Gainesville, Florida 32601 (United States); Venkatachalam, Dinesh K.; Elliman, Robert G. [Department of Electronic Materials Engineering, Australian National University, Canberra, ACT 0200 (Australia); Fridmann, Joel [Nanoscience Institute for Medical and Engineering Technology, University of Florida, Gainesville, Florida 32601 (United States); Raith USA, Incorporated, Ronkonkoma, New York 11779 (United States); Gila, Brent P.; Appleton, Bill R. [Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32601 (United States); Nanoscience Institute for Medical and Engineering Technology, University of Florida, Gainesville, Florida 32601 (United States); Hebard, Arthur F. [Department of Physics, University of Florida, Gainesville, Florida 32601 (United States); Ren, Fan [Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32601 (United States); Department of Chemical Engineering, University of Florida, Gainesville, Florida 32601 (United States)

2012-05-07T23:59:59.000Z

116

Investigation of the Distribution of Fission Products Silver, Palladium and Cadmium in Neutron Irradiated SIC using a Cs Corrected HRTEM  

SciTech Connect (OSTI)

Electron microscopy examinations of selected coated particles from the first advanced gas reactor experiment (AGR-1) at Idaho National Laboratory (INL) provided important information on fission product distribution and chemical composition. Furthermore, recent research using STEM analysis led to the discovery of Ag at SiC grain boundaries and triple junctions. As these Ag precipitates were nano-sized, high resolution transmission electron microscopy (HRTEM) examination was used to provide more information at the atomic level. This paper describes some of the first HRTEM results obtained by examining a particle from Compact 4-1-1, which was irradiated to an average burnup of 19.26% fissions per initial metal atom (FIMA), a time average, volume-averaged temperature of 1072°C; a time average, peak temperature of 1182°C and an average fast fluence of 4.13 x 1021 n/cm2. Based on gamma analysis, it is estimated that this particle may have released as much as 10% of its available Ag-110m inventory during irradiation. The HRTEM investigation focused on Ag, Pd, Cd and U due to the interest in Ag transport mechanisms and possible correlation with Pd, Ag and U previously found. Additionally, Compact 4-1-1 contains fuel particles fabricated with a different fuel carrier gas composition and lower deposition temperatures for the SiC layer relative to the Baseline fabrication conditions, which are expected to reduce the concentration of SiC defects resulting from uranium dispersion. Pd, Ag, and Cd were found to co-exist in some of the SiC grain boundaries and triple junctions whilst U was found to be present in the micron-sized precipitates as well as separately in selected areas at grain boundaries. This study confirmed the presence of Pd both at inter- and intragranular positions; in the latter case specifically at stacking faults. Small Pd nodules were observed at a distance of about 6.5 micron from the inner PyC/SiC interface.

I. J. van Rooyen; E. Olivier; J. H Neethlin

2014-10-01T23:59:59.000Z

117

arXiv:1102.3798v1[cond-mat.mes-hall]18Feb2011 Graphene on the carbon face of SiC: electronic structure modification by hydrogen  

E-Print Network [OSTI]

arXiv:1102.3798v1[cond-mat.mes-hall]18Feb2011 Graphene on the carbon face of SiC: electronic that the first C layer on the SiC(0001)(2×2)C surface already exhibits graphene- like electronic structure transfer mechanism. Here, we study the effects of interface mod- ifications on the graphene layer using

Paris-Sud XI, Université de

118

Smoothing single-crystalline SiC surfaces by reactive ion etching using pure NF{sub 3} and NF{sub 3}/Ar mixture gas plasmas  

SciTech Connect (OSTI)

In pure NF{sub 3} plasma, the etching rates of four kinds of single-crystalline SiC wafer etched at NF{sub 3} pressure of 2?Pa were the highest and it decreased with an increase in NF{sub 3} pressure. On the other hand, they increased with an increase in radio frequency (RF) power and were the highest at RF power of 200?W. A smooth surface was obtained on the single-crystalline 4H-SiC after reactive ion etching at NF{sub 3}/Ar gas pressure of 2?Pa and addition of Ar to NF{sub 3} plasma increased the smoothness of SiC surface. Scanning electron microscopy observation revealed that the number of pillars decreased with an increase in the Ar-concentration in the NF{sub 3}/Ar mixture gas. The roughness factor (R{sub a}) values were decreased from 51.5?nm to 25.5?nm for the As-cut SiC, from 0.25?nm to 0.20?nm for the Epi-SiC, from 5.0?nm to 0.7?nm for the Si-face mirror-polished SiC, and from 0.20?nm to 0.16?nm for the C-face mirror-polished SiC by adding 60% Ar to the NF{sub 3} gas. Both the R{sub a} values of the Epi- and the C-face mirror-polished wafer surfaces etched using the NF{sub 3}/Ar (40:60) plasma were similar to that treated with mirror polishing, so-called the Catalyst-Referred Etching (CARE) method, with which the lowest roughness of surface was obtained among the chemical mirror polishing methods. Etching duration for smoothing the single-crystalline SiC surface using its treatment was one third of that with the CARE method.

Tasaka, Akimasa, E-mail: aki-tasaka-load@yahoo.co.jp [Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, 1-3 Miyako-dani, Tatara, Kyotanabe, Kyoto 610-0321, Japan and Department of Applied Chemistry, Graduate School of Engineering, Doshisha University, 1-3 Miyako-dani, Tatara, Kyotanabe, Kyoto 610-0321 (Japan); Kotaka, Yuki [Department of Applied Chemistry, Graduate School of Engineering, Doshisha University, 1-3 Miyako-dani, Tatara, Kyotanabe, Kyoto 610-0321 (Japan); Oda, Atsushi; Saito, Morihiro [Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, 1-3 Miyako-dani, Tatara, Kyotanabe, Kyoto 610-0321 (Japan); Tojo, Tetsuro [Toyo Tanso Co, Ltd., 5-7-2 Takeshima, Nishi yodogawa-ku, Osaka 555-0011 (Japan); Inaba, Minoru [Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, 1-3 Miyako-dani, Tatara, Kyotanabe, Kyoto 610-0321, Japan and Department of Applied Chemistry, Graduate School of Science and Engineering, Doshisha University, 1-3 Miyako-dani, Tatara, Kyotanabe, Kyoto 610-0321 (Japan)

2014-09-01T23:59:59.000Z

119

A 10-kW SiC Inverter with A Novel Printed Metal Power Module With Integrated Cooling Using Additive Manufacturing  

SciTech Connect (OSTI)

With efforts to reduce the cost, size, and thermal management systems for the power electronics drivetrain in hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs), wide band gap semiconductors including silicon carbide (SiC) have been identified as possibly being a partial solution. This paper focuses on the development of a 10-kW all SiC inverter using a high power density, integrated printed metal power module with integrated cooling using additive manufacturing techniques. This is the first ever heat sink printed for a power electronics application. About 50% of the inverter was built using additive manufacturing techniques.

Chinthavali, Madhu Sudhan [ORNL; Ayers, Curtis William [ORNL; Campbell, Steven L [ORNL; Wiles, Randy H [ORNL; Ozpineci, Burak [ORNL

2014-01-01T23:59:59.000Z

120

TUNGSTEN ISOTOPIC COMPOSITIONS IN STARDUST SiC GRAINS FROM THE MURCHISON METEORITE: CONSTRAINTS ON THE s-PROCESS IN THE Hf-Ta-W-Re-Os REGION  

SciTech Connect (OSTI)

We report the first tungsten isotopic measurements in stardust silicon carbide (SiC) grains recovered from the Murchison carbonaceous chondrite. The isotopes {sup 182,183,184,186}W and {sup 179,180}Hf were measured on both an aggregate (KJB fraction) and single stardust SiC grains (LS+LU fraction) believed to have condensed in the outflows of low-mass carbon-rich asymptotic giant branch (AGB) stars with close-to-solar metallicity. The SiC aggregate shows small deviations from terrestrial (= solar) composition in the {sup 182}W/{sup 184}W and {sup 183}W/{sup 184}W ratios, with deficits in {sup 182}W and {sup 183}W with respect to {sup 184}W. The {sup 186}W/{sup 184}W ratio, however, shows no apparent deviation from the solar value. Tungsten isotopic measurements in single mainstream stardust SiC grains revealed lower than solar {sup 182}W/{sup 184}W, {sup 183}W/{sup 184}W, and {sup 186}W/{sup 184}W ratios. We have compared the SiC data with theoretical predictions of the evolution of W isotopic ratios in the envelopes of AGB stars. These ratios are affected by the slow neutron-capture process and match the SiC data regarding their {sup 182}W/{sup 184}W, {sup 183}W/{sup 184}W, and {sup 179}Hf/{sup 180}Hf isotopic compositions, although a small adjustment in the s-process production of {sup 183}W is needed in order to have a better agreement between the SiC data and model predictions. The models cannot explain the {sup 186}W/{sup 184}W ratios observed in the SiC grains, even when the current {sup 185}W neutron-capture cross section is increased by a factor of two. Further study is required to better assess how model uncertainties (e.g., the formation of the {sup 13}C neutron source, the mass-loss law, the modeling of the third dredge-up, and the efficiency of the {sup 22}Ne neutron source) may affect current s-process predictions.

Avila, Janaina N.; Ireland, Trevor R.; Holden, Peter [Research School of Earth Sciences, Australian National University, Canberra, ACT 0200 (Australia); Lugaro, Maria; Buntain, Joelene [Centre for Stellar and Planetary Astrophysics, Monash University, Clayton, VIC 3800 (Australia); Gyngard, Frank; Zinner, Ernst; Amari, Sachiko [Laboratory for Space Sciences and the Department of Physics, Washington University, One Brookings Drive, St. Louis, MO 63130 (United States); Cristallo, Sergio [Departamento de Fisica Teorica y del Cosmos, Universidad de Granada, Granada 18071 (Spain); Karakas, Amanda, E-mail: janaina.avila@anu.edu.au [Mount Stromlo Observatory, Australian National University, Weston Creek, ACT 2611 (Australia)

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "groups 2-digit sic" 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

Morphological Analysis of Zirconium Nuclear Fuel Retaining Rods Braided with SiC: Quality Assurance and Defect Identification  

SciTech Connect (OSTI)

In the after-Fukushima world, the stability of materials under extreme conditions is an important issue for the safety of nuclear reactors. Among the methods explored currently to improve zircaloys’ thermal stability in off-normal conditions, using a protective coat of the SiC filaments is considered because silicon carbide is well known for its remarkable chemical inertness at high temperatures. A typical SiC fiber contains ~50,000 individual filaments of 5 – 10 µm in diameter. In this paper, an effort was made to develop and apply mathematical morphology to the process of automatic defect identification in Zircaloy-4 rods braided with the protective layer of the silicon carbide filament. However, the issues of the braiding quality have to be addressed to ensure its full protective potential. We present the original mathematical morphology algorithms that allow solving this problem of quality assurance successfully. In nuclear industry, such algorithms are used for the first time, and could be easily generalized to the case of automated continuous monitoring for defect identification in the future.

Michael V Glazoff; Robert Hiromoto; Akira Tokuhiro

2014-08-01T23:59:59.000Z

122

Discontinuous phase formation and selective attack of SiC materials exposed to low oxygen partial pressure environments  

SciTech Connect (OSTI)

Three SiC materials were exposed to gas mixtures containing N{sub 2}, H{sub 2}, and CO at 1000-1300C, 1-740 torr for a few to 1000 h. Kinetic and thermodynamic studies indicate that CO is the predominant oxidizing species. A variety of corrosion processes were observed, including surface and internal pit formation, needle growth, grain boundary attack, and attack of impurities and surrounding material. In the case of a siliconized SiC, impurities such as Ca, Al, and Fe diffused rapidly through the Si matrix forming complex calcium aluminosilicates on the surface, leaving behind internal voids. Evaluation of the mechanical properties, including fractography, revealed a variety of degradative phenomena. Efforts to identify causes of pit formation suggested that the overall process was complex. Pits formed during attack of grain boundaries and regions containing transition metal impurities. Studies of single crystals showed preferential attack near impurities and crystalline defects, indicating that damaged crystals or certain crystal orientations in the polycrystalline materials are susceptible to attack. In addition, under some conditions where pit formation was observed, the strength of certain materials increased apparently due to flaw healing. It is suggested that flaws can heal in the absence of mechanical stress due to their high surface energy. However, second phases observed within partially healed surface cracks suggest impurities also contribute to the flaw healing processes.

Butt, D.P. [Los Alamos National Lab., NM (United States); Tressler, R.E.; Spear, K.E. [Pennsylvania State Univ., University Park, PA (United States). Dept. of Materials Science and Engineering

1993-09-01T23:59:59.000Z

123

Substrate doping effects on Raman spectrum of epitaxial graphene on SiC R. Yang, Q. S. Huang, X. L. Chen, G. Y. Zhang,a  

E-Print Network [OSTI]

, the adsorption is unstable and the doping also includes the contribution from the SiC substrate. Thus, it is very reactor. The growth environment was pumped to a base pres- sure of 2 10-5 Pa under an Ar flow protection. After a preliminary heating at 1050 °C for 30 min to remove the native oxide, the substrate

Wang, Wei Hua

124

978-1-4244-2800-7/09/$25.00 2009 IEEE ICIEA 2009 Efficiency of SiC JFET-Based Inverters  

E-Print Network [OSTI]

978-1-4244-2800-7/09/$25.00 ©2009 IEEE ICIEA 2009 Efficiency of SiC JFET-Based Inverters Hui Zhang-phase full-bridge inverter power loss models based on experimental data are established and used to estimate inverter efficiency. The impact of load power, temperature, and switching frequency on inverter efficiency

Tolbert, Leon M.

125

SiC Vertical JFET Pure Diode-Less Inverter Leg Rmy Ouaida1,2, Xavier Fonteneau1, Fabien Dubois1, Dominique Bergogne1, Florent Morel1  

E-Print Network [OSTI]

SiC Vertical JFET Pure Diode-Less Inverter Leg RĂ©my Ouaida1,2, Xavier Fonteneau1, Fabien Dubois1 in an inverter leg without any internal or external diode. The JFET is characterized to show the reverse conduction capability while the gate-to-source voltage is lower than the threshold voltage. An inverter leg

Paris-Sud XI, Université de

126

High efficiency battery converter with SiC devices for residential PV Cam Pham, Remus Teodorescu, Tamas Kerekes and Laszlo Mathe  

E-Print Network [OSTI]

High efficiency battery converter with SiC devices for residential PV systems Cam Pham, Remus, where the generated energy price is relatively high. Smart PV systems with internal battery storage launched a financial support program for residential PV systems with battery storage [2]. Furthermore

Teodorescu, Remus

127

2D-simulation and analysis of lateral SiC N-emitter SiGe P-base Schottky metal-collector (NPM) HBT on SOI  

E-Print Network [OSTI]

2D-simulation and analysis of lateral SiC N-emitter SiGe P-base Schottky metal-collector (NPM) HBT metal-collector NPM HBT on SOI. The proposed lateral NPM HBT performance has been evaluated in detail silicon NPM BJT structures. Based on our simu- lation results, it is observed that while both the lateral

Kumar, M. Jagadesh

128

hal-00131838,version1-19Feb2007 Electron states of mono-and bilayer graphene on SiC probed by STM  

E-Print Network [OSTI]

hal-00131838,version1-19Feb2007 Electron states of mono- and bilayer graphene on SiC probed by STM to mono- and bilayer graphene capping a C-rich interface. At low temperature, both terraces show ( 3 × 3 close to the Fermi level. We conclude that the metallic states of the first graphene layer are almost

Paris-Sud XI, Université de

129

hal-00130698,version1-13Feb2007 Electronic structure of epitaxial graphene layers on SiC: effect of the substrate.  

E-Print Network [OSTI]

hal-00130698,version1-13Feb2007 Electronic structure of epitaxial graphene layers on SiC: effect integer quantum Hall effects expected for isolated graphene sheets. This is the case eventhough the layer-substrate epitaxy of these films implies a strong interface bond that should induce perturbations in the graphene

Paris-Sud XI, Université de

130

Ripples in epitaxial graphene on the Si-terminated SiC (0001) surface F.Varchon, P.Mallet, J.-Y.Veuillen, and L.Magaud  

E-Print Network [OSTI]

Ripples in epitaxial graphene on the Si-terminated SiC (0001) surface F.Varchon, P.Mallet, J) Interaction with a substrate can modify the graphene honeycomb lattice and thus alter its out- standing properties. This could be particularly true for epitaxial graphene where the carbon layers are grown from

Paris-Sud XI, Université de

131

DIFFERENCES BETWEEN SOLID-STATE REACTION OF PT THIN FILM DEPOSITED ON C-AND ON SI-FACE OF 6H-SIC  

E-Print Network [OSTI]

weight, and superior chemical stability. The interface between metal and silicon carbide is of great influences the load transfer between the metal matrix and the silicon carbide reinforcement and affects [1]. SiC is also used in fiber-reinforced metal-matrix composites because of its high strength, light

Shalish, Ilan

132

On Techniques to Characterize and Correlate Grain Size, Grain Boundary Orientation and the Strength of the SiC Layer of TRISO Coated Particles: A Preliminary Study  

SciTech Connect (OSTI)

The mechanical properties of the silicon carbide (SiC) layer of the TRi-ISOtropic (TRISO) coated particle (CP) for high temperature gas reactors (HTGR) are performance parameters that have not yet been standardized by the international HTR community. Presented in this paper are the results of characterizing coated particles to reveal the effect of annealing temperature (1000 to 2100°C) on the strength and grain size of unirradiated coated particles. This work was further expanded to include possible relationships between the grain size and strength values. The comparative results of two strength measurement techniques and grain size measured by the Lineal intercept method are included. Preliminary grain boundary characterization results determined by electron backscatter diffraction (EBSD) are included. These results are also important for future fission product transport studies, as grain boundary diffusion is identified as a possible mechanism by which 110mAg, one of the fission activation products, might be released through intact SiC layers. Temperature is a parameter known to influence the grain size of SiC and therefore it is important to investigate the effect of high temperature annealing on the SiC grain size. Recommendations and future work will also be briefly discussed.

I.J.van Rooyen; J.L. Dunzik Gougar; T. Trowbridge; Philip M van Rooyen

2012-10-01T23:59:59.000Z

133

Formation of Epitaxial Graphene on SiC(0001) using Vacuum or Argon Environments Luxmi, N. Srivastava, and R. M. Feenstra  

E-Print Network [OSTI]

1 Formation of Epitaxial Graphene on SiC(0001) using Vacuum or Argon Environments Luxmi, N. Fisher IBM T. J. Watson Research Center, Yorktown Heights, NY 10598 Abstract The formation of graphene microscopy, and scanning tunneling microscopy/spectroscopy. The graphene forms due to preferential

Feenstra, Randall

134

Comparison of Graphene Formation on C-face and Si-face SiC {0001} Surfaces Luxmi, N. Srivastava, Guowei He, and R. M. Feenstra  

E-Print Network [OSTI]

1 Comparison of Graphene Formation on C-face and Si-face SiC {0001} Surfaces Luxmi, N. Srivastava of graphene formed on the ( 1000 ) surface (the C-face) and the (0001) surface (the Si-face) of Si) and low-energy electron microscopy (LEEM). The graphene forms due to preferential sublimation of Si from

Feenstra, Randall

135

High-Temperature Die-Attaches for SiC Power Devices Amandine MASSON1, Cyril BUTTAY1, Herve MOREL1, Christophe RAYNAUD1,  

E-Print Network [OSTI]

of the solder joint degrade. The ratio between the melting temperature (Tm) and the operating temperature (To electronic systems which will be installed in hot areas. SiC power devices can operate at high temperature operating temperature range. Furthermore, the reliability of the attach is directly linked to its operating

Paris-Sud XI, Université de

136

IEEE TRANSACTIONS ON ELECTRON DEVICES, VOL. 53, NO. 9, SEPTEMBER 2006 2407 SiGe HBT Without Selectively Implanted Collector (SIC)  

E-Print Network [OSTI]

Selectively Implanted Collector (SIC) Exhibiting fmax = 310 GHz and BVCEO = 2 V Jae-Sung Rieh, Marwan Khater peak fmax of 310 GHz at the collector-current density of 7 mA/µm2 and BVCEO of 2 V, are reported behind the speed enhancement has been the continuous vertical scaling of the device structure. Collector

Rieh, Jae-Sung

137

Interfacial studies of refractory glass-ceramic matrix/advanced SiC fiber-reinforced composites. Annual report, 1 Feb 91-1 Feb 92  

SciTech Connect (OSTI)

The main objective of this program is to characterize the chemistry and structure of new advanced small diameter silicon based fibers and how these factors influence the nature of the fiber/matrix interface in refractory glass-ceramic matrix composites. It is the nature of this interface that then determines to a great degree the composite thermal, environmental, and mechanical properties. The fibers under investigation during the second year of this program included the new experimental polymer derived crystalline SiC fibers from Dow Corning Corp., the Si-N-C-O 'Black' fibers from Textron Specialty Materials, as well as the new low oxygen radiation cured Nicalon SiC type fibers from Nippon Carbon Co. Since the availability of all of these fibers was extremely limited, emphasis was placed on the mechanical, chemical, and microstructural characterization of the fibers through tensile testing, SEM of fiber fracture characteristics, scanning Auger depth profiling of fiber surfaces, and TEM of fiber thin sections, as well as their fracture behavior, bonding characteristics, and interfacial compatibility with various glass-ceramic matrix materials. Results of these analyses are discussed. Crystalline SiC fibers, Textron 'Black' fibers, low oxygen Nicalon fibers, SiC fiber/glass-ceramic matrix interfaces, TEM fiber analyses.

Brennan, J.J.

1992-04-30T23:59:59.000Z

138

EUROPIUM s-PROCESS SIGNATURE AT CLOSE-TO-SOLAR METALLICITY IN STARDUST SiC GRAINS FROM ASYMPTOTIC GIANT BRANCH STARS  

SciTech Connect (OSTI)

Individual mainstream stardust silicon carbide (SiC) grains and a SiC-enriched bulk sample from the Murchison carbonaceous meteorite have been analyzed by the Sensitive High Resolution Ion Microprobe-Reverse Geometry for Eu isotopes. The mainstream grains are believed to have condensed in the outflows of {approx}1.5-3 M{sub Sun} carbon-rich asymptotic giant branch (AGB) stars with close-to-solar metallicity. The {sup 151}Eu fractions [fr({sup 151}Eu) = {sup 151}Eu/({sup 151}Eu+{sup 153}Eu)] derived from our measurements are compared with previous astronomical observations of carbon-enhanced metal-poor stars enriched in elements made by slow neutron captures (the s-process). Despite the difference in metallicity between the parent stars of the grains and the metal-poor stars, the fr({sup 151}Eu) values derived from our measurements agree well with fr({sup 151}Eu) values derived from astronomical observations. We have also compared the SiC data with theoretical predictions of the evolution of Eu isotopic ratios in the envelope of AGB stars. Because of the low Eu abundances in the SiC grains, the fr({sup 151}Eu) values derived from our measurements show large uncertainties, in most cases being larger than the difference between solar and predicted fr({sup 151}Eu) values. The SiC aggregate yields a fr({sup 151}Eu) value within the range observed in the single grains and provides a more precise result (fr({sup 151}Eu) = 0.54 {+-} 0.03, 95% conf.), but is approximately 12% higher than current s-process predictions. The AGB models can match the SiC data if we use an improved formalism to evaluate the contribution of excited nuclear states in the calculation of the {sup 151}Sm(n, {gamma}) stellar reaction rate.

Avila, Janaina N.; Ireland, Trevor R.; Holden, Peter [Research School of Earth Sciences, Australian National University, Canberra ACT 0200 (Australia); Lugaro, Maria [Monash Centre for Astrophysics, Monash University, Clayton, VIC 3800 (Australia); Gyngard, Frank; Zinner, Ernst [Laboratory for Space Sciences and the Department of Physics, Washington University, One Brookings Drive, St. Louis, MO 63130 (United States); Cristallo, Sergio [Osservatorio Astronomico di Collurania, INAF, via Maggini snc, Teramo I-64100 (Italy); Rauscher, Thomas, E-mail: janaina.avila@anu.edu.au [Centre for Astrophysics Research, School of Physics, Astronomy, and Mathematics, University of Hertfordshire, Hatfield AL10 9AB (United Kingdom)

2013-05-01T23:59:59.000Z

139

SiC MOSFET Based Single Phase Active Boost Rectifier with Power Factor Correction for Wireless Power Transfer Applications  

SciTech Connect (OSTI)

Wireless Power Transfer (WPT) technology is a novel research area in the charging technology that bridges the utility and the automotive industries. There are various solutions that are currently being evaluated by several research teams to find the most efficient way to manage the power flow from the grid to the vehicle energy storage system. There are different control parameters that can be utilized to compensate for the change in the impedance due to variable parameters such as battery state-of-charge, coupling factor, and coil misalignment. This paper presents the implementation of an active front-end rectifier on the grid side for power factor control and voltage boost capability for load power regulation. The proposed SiC MOSFET based single phase active front end rectifier with PFC resulted in >97% efficiency at 137mm air-gap and >95% efficiency at 160mm air-gap.

Onar, Omer C [ORNL] [ORNL; Tang, Lixin [ORNL] [ORNL; Chinthavali, Madhu Sudhan [ORNL] [ORNL; Campbell, Steven L [ORNL] [ORNL; Miller (JNJ), John M. [JNJ-Miller PLC] [JNJ-Miller PLC

2014-01-01T23:59:59.000Z

140

Structural alterations in SiC as a result of Cr/sup +/ and N/sup +/ implantation  

SciTech Connect (OSTI)

Ion scattering and channeling techniques were used to study production of disorder and randomization of SiC by implantation of Cr/sup +/ and N/sup +/ at doses of up to 3 x 10/sup 16/ /cm/sup 2/ for Cr/sup +/ and 8 x 10/sup 16/ /cm/sup 2/ for N/sup +/. Experiments were designed so that the calculated damage energy profiles would be well matched for the two ion species. The results were compared for the degree of effectiveness of Cr/sup +/ and N/sup +/ in producing disorder. At higher doses, Cr/sup +/ was much more effective than N/sup +/ for a given damage energy using the same calculational method for Cr/sup +/ as for N/sup +/. In correlated studies of swelling, both species had about the same effectiveness in producing swelling.

Williams, J.M.; McHargue, C.J.; Appleton, B.R.

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "groups 2-digit sic" 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

Vehicle Technologies Office Merit Review 2014: Advanced Low-Cost SiC and GaN Wide Bandgap Inverters for Under-the-Hood Electric Vehicle Traction Drives  

Broader source: Energy.gov [DOE]

Presentation given by APEI Inc. at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about Advanced low-cost SIC and GaN wide...

142

arXiv:0902.1638v1[cond-mat.mtrl-sci]10Feb2009 Graphene on the C-terminated SiC (000 1) surface: An ab initio F.Varchon,1  

E-Print Network [OSTI]

arXiv:0902.1638v1[cond-mat.mtrl-sci]10Feb2009 Graphene on the C-terminated SiC (000 Ż1) surface and electronic structures of a graphene layer on top of the (2 × 2) reconstruction of the SiC (000Ż1) surface characteristic of graphene. A small graphene-substrate interaction remains in agreement with scanning tunneling

Paris-Sud XI, Université de

143

Development of a 10 kW High Temperature High Power Density Three-Phase AC-DC-AC SiC Converter  

SciTech Connect (OSTI)

This paper presents the development and experimental performance of a 10 kW, all SiC, 250 C junction temperature high-power-density three-phase ac-dc-ac converter. The electromagnetic interference filter, thermal system, high temperature package, and gate drive design are discussed in detail. Finally, tests confirming the feasibility and validating the theoretical basis of the prototype converter system are described.

Ning, Puqi [ORNL

2012-01-01T23:59:59.000Z

144

Formation of nanosized hills on Ti3SiC2 oxide layer irradiated with swift heavy ions J.C. Nappa,  

E-Print Network [OSTI]

of the Gas-cooled Fast Reactor. Among the studied carbides, Ti3SiC2 has the advantage of combining, 28.41.Bm, 81.65.Mq, 68.37.Ps, 68.37.Og, 79.60.-i 1. Introduction The Gas-cooled Fast Reactor (GFR Forum (GIF) [1]. Because of working conditions planned for this reactor ­ high helium pressure, and high

Paris-Sud XI, Université de

145

Micromechanisms of creep-fatigue crack growth in a silicide-matrix composite with SiC particles  

SciTech Connect (OSTI)

An experimental study has been conducted to examine the cyclic fatigue crack growth characteristics in 1,200 C air of a MoSi[sub 2]-50 mol% WSi[sub 2] alloy in the unreinforced condition and with 30 vol% SiC particles. For comparison purposes, crack growth experiments under sustained loads were also carried out in the silicide-matrix composite. Particular attention is devoted to developing an understanding of the micromechanism of subcritical crack growth by recourse to optical and electron microscopy, including transmission electron microscopy of crack-tip damage. The results indicate that enhanced viscous flow of glass films along interfaces and grain boundaries imparts pronounced levels of subcritical crack growth in the composite material; the composite exhibits a higher fatigue fracture threshold and a more extended range of stable fracture than the unreinforced alloy. The effects of glass phase in influencing fatigue crack growth in the silicide-based material are compared to the influence of in situ-formed and preexisting glass films on high-temperature cyclic fatigue crack growth in ceramics and ceramic composites. The paper concludes with a comparison of present results with the high-temperature damage tolerance of a variety of intermetallic alloys and ceramic materials.

Ramamurty, U.; Kim, A.S.; Suresh, S. (Brown Univ., Providence, RI (United States)); Petrovic, J.J. (Los Alamos National Lab., NM (United States))

1993-08-01T23:59:59.000Z

146

Selmer groups as flat cohomology groups  

E-Print Network [OSTI]

Given a prime number p, Bloch and Kato showed how the p Selmer group of an abelian variety A over a number field K is determined by the p-adic Tate module. In general, the pm1-Selmer group Selpmn A need not be determined ...

?esnavi?ius, K?stutis

2014-01-01T23:59:59.000Z

147

1. Tsubono Group 1 1 Tsubono Group  

E-Print Network [OSTI]

optical fiber ­ Test of the law of gravitation at extremely small distance references [1] Y. Aso, M. Ando1. Tsubono Group 1 1 Tsubono Group Research Subjects: Experimental Relativity, Gravitational Wave Physics, Laser Inter- ferometer Member: Kimio TSUBONO and Masaki ANDO The detection of gravitational waves

Ejiri, Shinji

148

QEP WORKING GROUP CHARGES Assessment Working Group  

E-Print Network [OSTI]

and a framework that details timelines, leadership, resource allocation, and an assessment plan that is clearlyQEP WORKING GROUP CHARGES Assessment Working Group The topic of the QEP should fit should be supported by a thorough understanding of the institutional context and by assessment data

Liu, Paul

149

Student Groups Student Group Description Short Description  

E-Print Network [OSTI]

Student Groups Student Group Description Short Description AHR Scholar-Architecture Scholar ART Honors - Architecture Honors H04 Honors - Allied Medical Prof Honors H05 Honors - Arts & Sciences Honors H14 Honors - Envir&Natural Resources Honors H15 Honors - Food, Agr, & Envir Sci Honors H16 Honors

150

Ceramic Technology Project database: September 1990 summary report. [SiC, SiN, whisker-reinforced SiN, ZrO-toughened aluminas, zirconias, joints  

SciTech Connect (OSTI)

Data generated within the Ceramic Technology Project (CTP) represent a valuable resource for both research and industry. The CTP database was created to provide easy access to this information in electronic and hardcopy forms by using a computerized database and by issuing periodic hardcopy reports on the database contents. This report is the sixth in a series of semiannual database summaries and covers recent additions to the database, including joined brazed specimen test data. It covers 1 SiC, 34 SiN, 10 whisker-reinforced SiN, 2 zirconia-toughened aluminas, 8 zirconias, and 34 joints.

Keyes, B.L.P.

1992-06-01T23:59:59.000Z

151

TEC Working Group Topic Groups Archives Communications Meeting...  

Office of Environmental Management (EM)

TEC Working Group Topic Groups Archives Communications Conference Call Summaries TEC Meeting Summaries - January 1997 TEC Working Group Topic Groups Tribal Conference Call...

152

Pending Jobs by Group  

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

Pending Jobs by Group Pending Jobs by Group Daily Graph: Weekly Graph: Monthly Graph: Yearly Graph: 2 Year Graph: Last edited: 2011-04-05 14:00:14...

153

Long Term by Group  

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

Running Jobs by Group Running Jobs by Group Daily Graph: Weekly Graph: Monthly Graph: Yearly Graph: 2 Year Graph: Last edited: 2011-04-05 13:59:48...

154

Interagency Sustainability Working Group  

Broader source: Energy.gov [DOE]

The Interagency Sustainability Working Group (ISWG) is the coordinating body for sustainable buildings in the federal government.

155

Hydrogen Analysis Group  

SciTech Connect (OSTI)

NREL factsheet that describes the general activites of the Hydrogen Analysis Group within NREL's Hydrogen Technologies and Systems Center.

Not Available

2008-03-01T23:59:59.000Z

156

Rapid silicon outdiffusion from SiC substrates during molecular-beam epitaxial growth of AlGaN/GaN/AlN transistor structures  

SciTech Connect (OSTI)

AlGaN/GaN/AlN transistor structures were grown onto SiC substrates by molecular-beam epitaxy. Under aluminum-rich growth conditions for the AlN nucleation layer, undesirable n-type conduction is observed near the GaN/AlN interface for even thick (>1000 A) AlN layers. Silicon is identified as the unwanted dopant from secondary-ion mass spectroscopy measurements. Atomic force microscopy surface maps reveal free aluminum metal on AlN surfaces grown under modest aluminum-rich conditions. It is proposed that rapid silicon migration is caused by molten aluminum reacting with the SiC substrate resulting in dissolved silicon that rapidly migrates through the growing AlN layer. This behavior is significantly reduced using a growth flux ratio of aluminum to reactive nitrogen close to unity. The resulting buffer leakage current of the GaN high electron mobility transistor structure is reduced by more than four orders of magnitude.

Hoke, W.E.; Torabi, A.; Mosca, J.J.; Hallock, R.B.; Kennedy, T.D. [Raytheon RF Components, 362 Lowell Street, Andover, Massachusetts 01810 (United States)

2005-10-15T23:59:59.000Z

157

Effects of pressure, temperature, and hydrogen during graphene growth on SiC(0001) using propane-hydrogen chemical vapor deposition  

SciTech Connect (OSTI)

Graphene growth from a propane flow in a hydrogen environment (propane-hydrogen chemical vapor deposition (CVD)) on SiC differentiates from other growth methods in that it offers the possibility to obtain various graphene structures on the Si-face depending on growth conditions. The different structures include the (6{radical}3 Multiplication-Sign 6{radical}3)-R30 Degree-Sign reconstruction of the graphene/SiC interface, which is commonly observed on the Si-face, but also the rotational disorder which is generally observed on the C-face. In this work, growth mechanisms leading to the formation of the different structures are studied and discussed. For that purpose, we have grown graphene on SiC(0001) (Si-face) using propane-hydrogen CVD at various pressure and temperature and studied these samples extensively by means of low energy electron diffraction and atomic force microscopy. Pressure and temperature conditions leading to the formation of the different structures are identified and plotted in a pressure-temperature diagram. This diagram, together with other characterizations (X-ray photoemission and scanning tunneling microscopy), is the basis of further discussions on the carbon supply mechanisms and on the kinetics effects. The entire work underlines the important role of hydrogen during growth and its effects on the final graphene structure.

Michon, A.; Vezian, S.; Roudon, E.; Lefebvre, D.; Portail, M. [CNRS-CRHEA, Rue Bernard Gregory, 06560 Valbonne (France)] [CNRS-CRHEA, Rue Bernard Gregory, 06560 Valbonne (France); Zielinski, M.; Chassagne, T. [NOVASiC, Savoie Technolac, Arche Bat 4, BP267, 73375 Le Bourget du Lac (France)] [NOVASiC, Savoie Technolac, Arche Bat 4, BP267, 73375 Le Bourget du Lac (France)

2013-05-28T23:59:59.000Z

158

Grouped exposed metal heaters  

DOE Patents [OSTI]

A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.

Vinegar, Harold J. (Bellaire, TX); Coit, William George (Bellaire, TX); Griffin, Peter Terry (Brixham, GB); Hamilton, Paul Taylor (Houston, TX); Hsu, Chia-Fu (Granada Hills, CA); Mason, Stanley Leroy (Allen, TX); Samuel, Allan James (Kular Lumpar, MY); Watkins, Ronnie Wade (Cypress, TX)

2010-11-09T23:59:59.000Z

159

Grouped exposed metal heaters  

DOE Patents [OSTI]

A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.

Vinegar, Harold J. (Bellaire, TX); Coit, William George (Bellaire, TX); Griffin, Peter Terry (Brixham, GB); Hamilton, Paul Taylor (Houston, TX); Hsu, Chia-Fu (Granada Hills, CA); Mason, Stanley Leroy (Allen, TX); Samuel, Allan James (Kular Lumpar, ML); Watkins, Ronnie Wade (Cypress, TX)

2012-07-31T23:59:59.000Z

160

GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5 GROUP 6 ANDERSON, JENNIFER AYENI, MARY ABATE BESSOMO, ANNA BARRETT, CIAN ADAMS, NICOLE BARTON, MICHAEL  

E-Print Network [OSTI]

GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5 GROUP 6 ANDERSON, JENNIFER AYENI, MARY ABATE BESSOMO, ANNA ANDERSON FITZSIMONS, DENISEBINCHY, SUSAN CARLEY, JESSE CONWAY, AILBHE BROOKE, HENRY CONLAN, DEIRDRE, CAOIMHE HESKIN, CLODAGH MC GOVERN, MARIE-CLAIREMURRAY, AINE GROGAN, CLARE GERARD, ALLISON MC QUAID, RACHEL

O'Mahony, Donal E.

Note: This page contains sample records for the topic "groups 2-digit sic" 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

A Second Poincare' Group  

E-Print Network [OSTI]

Solutions of the sourceless Einstein's equation with weak and strong cosmological constants are discussed by using In\\"on\\"u-Wigner contractions of the de Sitter groups and spaces. The more usual case corresponds to a weak cosmological-constant limit, in which the de Sitter groups are contracted to the Poincar\\'e group, and the de Sitter spaces are reduced to the Minkowski space. In the strong cosmological-constant limit, however, the de Sitter groups are contracted to another group which has the same abstract Lie algebra of the Poincar\\'e group, and the de Sitter spaces are reduced to a 4-dimensional cone-space of infinite scalar curvature, but vanishing Riemann and Ricci curvature tensors. In such space, the special conformal transformations act transitively, and the equivalence between inertial frames is that of special relativity.

R. Aldrovandi; J. G. Pereira

1998-09-21T23:59:59.000Z

162

Report on the deuterium retention in CVD coated W on SiC in support of the Ultramet Company’s Small Business Innovation Research (SBIR) project: SOW DE-FG02-07ER84941  

SciTech Connect (OSTI)

A tungsten (W) coated (0.0005-inch thickness) silicon carbide (SiC) (1.0-inch diameter and 0.19-inch thickness) sample was exposed to a divertor relevant high-flux (~1022 m-2s-1) deuterium plasma at 200 and 400°C in the Idaho National Laboratory’s (INL’s) Tritium Plasma Experiment (TPE), and the total deuterium retention was subsequently measured via the thermal desorption spectroscopy (TDS) method. The deuterium retentions were 6.4x1019 m-2 and 1.7x1020 m-2, for 200 and 400°C exposure, respectively. The Tritium Migration Analysis Program (TMAP) was used to analyze the measured TDS spectrum to investigate the deuterium behavior in the W coated SiC, and the results indicated that most of the deuterium was trapped in the W coated layer even at 400°C. This thin W layer (0.0005-inch ~ 13µm thickness) prevented deuterium ions from bombarding directly into the SiC substrate, minimizing erosion of SiC and damage creation via ion bombardment. The shift in the D desorption peak in the TDS spectra from 200 C to 400°C can be attributed to D migration to the bulk material. This unexpectedly low deuterium retention and short migration might be due to the porous nature of the tungsten coating, which can decrease the solution concentration of deuterium atoms.

Masashi Shimada

2012-06-01T23:59:59.000Z

163

A. Bag, W. Zhou, D. Taplin and E. S. Dwarakadasa, Fatigue Behaviour of AZ91D Magnesium Alloy and its Composite Reinforced with SiC, in Magnesium Technology 2000, eds. H. I. Kaplan, J. N. Hryn  

E-Print Network [OSTI]

A. Bag, W. Zhou, D. Taplin and E. S. Dwarakadasa, Fatigue Behaviour of AZ91D Magnesium Alloy and its Composite Reinforced with SiC, in Magnesium Technology 2000, eds. H. I. Kaplan, J. N. Hryn and B. B. Clow, Nashville, Tennessee, Mar. 2000, pp. 345-348. FATIGUE BEHAVIOUR OF AZ91D MAGNESIUM ALLOY

Zhou, Wei

164

Tribal Topic Group Summary  

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

Caucus created a mission statement and resolution: - All Tribes with cultural ties to Yucca Mountain should be invited to join TEC - Ongoing funds to support Tribal Topic Group...

165

Trails Working Group  

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

in December 2003, includes representatives from local citizen hiking groups, Los Alamos County, Forest Service, Park Service, Los Alamos National Laboratory and the NNSA...

166

Hydrogen Technologies Group  

SciTech Connect (OSTI)

The Hydrogen Technologies Group at the National Renewable Energy Laboratory advances the Hydrogen Technologies and Systems Center's mission by researching a variety of hydrogen technologies.

Not Available

2008-03-01T23:59:59.000Z

167

Mechanical Engineering & Thermal Group  

E-Print Network [OSTI]

Mechanical Engineering & Thermal Group The Mechanical Engineering (ME) & Thermal Group at LASP has, and ground- based mechanical systems. Instrument Design Building on decades of design experience that has evolved with the complexity of instrument design demands, LASP mechanical engineers develop advanced

Mojzsis, Stephen J.

168

Group Accident Insurance Certificate  

E-Print Network [OSTI]

Group Accident Insurance Certificate Regents of the University of New Mexico #12;#12;Life Insurance Company GROUP ACCIDENT CERTIFICATE THIS CERTIFICATE PROVIDES LIMITED COVERAGE. PLEASE READ YOUR. THIS CERTIFICATE IS ISSUED UNDER AN ACCIDENT ONLY POLICY. IT DOES NOT PAY BENEFITS FOR LOSS CAUSED BY SICKNESS. GA

New Mexico, University of

169

Fermilab | Employee Advisory Group | Focus Group Report  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibility ofSmall15.000 Rev.Group Members Sabina Aponte,

170

The influence of fiber/matrix interface on the mechanical behavior of Nicalon SiC fiber reinforced glass-ceramic composites  

SciTech Connect (OSTI)

Mechanical properties of unidirectional Nicalon SiC fiber reinforced Ca aluminosilicate (CAS/SiC) and Mg aluminosilicate (MAS/SiC) glass-ceramic composites were investigated by tensile testing and nondestructive laser-ultrasound technique. The Ba-stuffed MAS was either undoped or doped with 5% borosilicate glass. Degradation of elastic stiffness constant C{sub 11} in transverse direction due to interface damage was monitored in situ by measuring the laser- generated ultrasound wave velocity. The three composite materials show different characteristics of macroscopic deformation behavior, which is correlated strongly to interface degradation. A stronger reduction trend of the elastic constant C{sub 11} is associated with a larger degree of inelastic deformation. The fracture surfaces also reveal the close relation between fiber pullout length and interfacial characteristics. Interfaces of these composites were studied by TEM; their influence on inhibiting and deflecting matrix cracks is discussed.

Liu, Y.M.; Mitchell, T.E. [Los Alamos National Lab., NM (United States); Wadley, H.N.G. [Virginia Univ., Charlottesville, VA (United States). Dept. of Materials Science and Engineering

1996-11-01T23:59:59.000Z

171

Electric Vehicle Research Group  

E-Print Network [OSTI]

.................................................................................9 From diesel to electric: a new era in personnel transport for underground coal minesElectric Vehicle Research Group Annual Report 2012 #12;Table of Contents Executive Summary................................................................................8 C2-25 Electric Vehicle Drivetrain

Liley, David

172

Finite group symmetry breaking  

E-Print Network [OSTI]

Finite group symmetry is commonplace in Physics, in particular through crystallographic groups occurring in condensed matter physics -- but also through the inversions (C,P,T and their combinations) occurring in high energy physics and field theory. The breaking of finite groups symmetry has thus been thoroughly studied, and general approaches exist to investigate it. In Landau theory, the state of a system is described by a finite dimensional variable (the {\\it order parameter}), and physical states correspond to minima of a potential, invariant under a group. In this article we describe the basics of symmetry breaking analysis for systems described by a symmetric polynomial; in particular we discuss generic symmetry breakings, i.e. those determined by the symmetry properties themselves and independent on the details of the polynomial describing a concrete system. We also discuss how the plethora of invariant polynomials can be to some extent reduced by means of changes of coordinates, i.e. how one can reduce to consider certain types of polynomials with no loss of generality. Finally, we will give some indications on extension of this theory, i.e. on how one deals with symmetry breakings for more general groups and/or more general physical systems.

G. Gaeta

2005-10-02T23:59:59.000Z

173

Illinois Wind Workers Group  

SciTech Connect (OSTI)

The Illinois Wind Working Group (IWWG) was founded in 2006 with about 15 members. It has grown to over 200 members today representing all aspects of the wind industry across the State of Illinois. In 2008, the IWWG developed a strategic plan to give direction to the group and its activities. The strategic plan identifies ways to address critical market barriers to the further penetration of wind. The key to addressing these market barriers is public education and outreach. Since Illinois has a restructured electricity market, utilities no longer have a strong control over the addition of new capacity within the state. Instead, market acceptance depends on willing landowners to lease land and willing county officials to site wind farms. Many times these groups are uninformed about the benefits of wind energy and unfamiliar with the process. Therefore, many of the project objectives focus on conferences, forum, databases and research that will allow these stakeholders to make well-educated decisions.

David G. Loomis

2012-05-28T23:59:59.000Z

174

Upgraded Coal Interest Group  

SciTech Connect (OSTI)

The Upgraded Coal Interest Group (UCIG) is an EPRI 'users group' that focuses on clean, low-cost options for coal-based power generation. The UCIG covers topics that involve (1) pre-combustion processes, (2) co-firing systems and fuels, and (3) reburn using coal-derived or biomass-derived fuels. The UCIG mission is to preserve and expand the economic use of coal for energy. By reducing the fuel costs and environmental impacts of coal-fired power generation, existing units become more cost effective and thus new units utilizing advanced combustion technologies are more likely to be coal-fired.

Evan Hughes

2009-01-08T23:59:59.000Z

175

Bell, group and tangle  

SciTech Connect (OSTI)

The 'Bell' of the title refers to bipartite Bell states, and their extensions to, for example, tripartite systems. The 'Group' of the title is the Braid Group in its various representations; while 'Tangle' refers to the property of entanglement which is present in both of these scenarios. The objective of this note is to explore the relation between Quantum Entanglement and Topological Links, and to show that the use of the language of entanglement in both cases is more than one of linguistic analogy.

Solomon, A. I., E-mail: a.i.solomon@open.ac.u [Open University, Department of Physics (United Kingdom)

2010-03-15T23:59:59.000Z

176

Magnetism Theory Group / POSTECH Magnetism Theory Group / POSTECH  

E-Print Network [OSTI]

Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH J.H . Park et al. #12;'s of FeinCsm e tal The chargeandorbitalordering geom etryin YB a C o 2 O 5 S. K. Kwon etal .Magnetism Theory

Min, Byung Il

177

TEC Working Group Topic Groups Rail Key Documents Radiation Monitoring...  

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

Radiation Monitoring Subgroup TEC Working Group Topic Groups Rail Key Documents Radiation Monitoring Subgroup Radiation Monitoring Subgroup Draft Work Plan - February 4, 2008 More...

178

TEC Working Group Topic Groups Rail Conference Call Summaries...  

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

Radiation Monitoring Subgroup TEC Working Group Topic Groups Rail Conference Call Summaries Radiation Monitoring Subgroup Radiation Monitoring Subgroup October 11, 2007 More...

179

KKG Group Paraffin Removal  

SciTech Connect (OSTI)

The Rocky Mountain Oilfield Testing Center (RMOTC) has recently completed a test of a paraffin removal system developed by the KKG Group utilizing the technology of two Russian scientists, Gennady Katzyn and Boris Koggi. The system consisting of chemical ''sticks'' that generate heat in-situ to melt the paraffin deposits in oilfield tubing. The melted paraffin is then brought to the surface utilizing the naturally flowing energy of the well.

Schulte, Ralph

2001-12-01T23:59:59.000Z

180

Personality and group interaction  

E-Print Network [OSTI]

that "prize Chips will be awarded equally to each person in the group based on the total number of blocks still standing in the tower at the end of the 15 seconds". b) In the contrient condition, subjects were told that "Prize Chips will be awarded only... to the individual with the most blocks still standing in the tower at the end of the 15 seconds. If there are any ties in terms of the number blocks on the tower and there is no clear winner, then no prize chips will be distributed". 6. Only one tower may...

Hair, Elizabeth Catherine

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "groups 2-digit sic" 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

ALS Communications Group  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience4AJ01) (See95TI07)Operations During theALSSafetyCommunications Group

182

High Temperature Membrane Working Group  

Broader source: Energy.gov [DOE]

This presentation provides an overview of the High Temperature Membrane Working Group Meeting in May 2007.

183

Digital Technology Group Computer Laboratory  

E-Print Network [OSTI]

Digital Technology Group 1/20 Computer Laboratory Digital Technology Group Computer Laboratory William R Carson Building on the presentation by Francisco Monteiro Matlab #12;Digital Technology Group 2/20 Computer Laboratory Digital Technology Group Computer Laboratory The product: MATLAB® - The Language

Cambridge, University of

184

Working Group Report: Sensors  

SciTech Connect (OSTI)

Sensors play a key role in detecting both charged particles and photons for all three frontiers in Particle Physics. The signals from an individual sensor that can be used include ionization deposited, phonons created, or light emitted from excitations of the material. The individual sensors are then typically arrayed for detection of individual particles or groups of particles. Mounting of new, ever higher performance experiments, often depend on advances in sensors in a range of performance characteristics. These performance metrics can include position resolution for passing particles, time resolution on particles impacting the sensor, and overall rate capabilities. In addition the feasible detector area and cost frequently provides a limit to what can be built and therefore is often another area where improvements are important. Finally, radiation tolerance is becoming a requirement in a broad array of devices. We present a status report on a broad category of sensors, including challenges for the future and work in progress to solve those challenges.

Artuso, M.; et al.,

2013-10-18T23:59:59.000Z

185

Expanded Pending Jobs by Group  

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

Expanded Pending Jobs by Group Expanded Pending Jobs by Group Daily Graph: Weekly Graph: Monthly Graph: Yearly Graph: 2 Year Graph: Last edited: 2011-04-05 14:00:25...

186

Data Management Group Annual Report  

E-Print Network [OSTI]

Data Management Group Annual Report 2001 prepared by: Data Management Group Joint Program..............................................................................2 Text Based Data Retrieval System `drs' ..........................................................2 Internet Browser Data Retrieval System (iDRS)..............................................3 Complex Data

Toronto, University of

187

Data Management Group Annual Report  

E-Print Network [OSTI]

Data Management Group Annual Report 1999 prepared by: Data Management Group Joint Program................................................................. 1 INFORMATION PROCESSING ............................................. 2 Text Based Data Retrieval System `drs' ........................ 2 Internet Browser Data Retrieval System (iDRS) ............ 3

Toronto, University of

188

Data Management Group Annual Report  

E-Print Network [OSTI]

iv Data Management Group Annual Report 2003 City of Hamilton City of Toronto GO Transit Regional of York Toronto Transit Commission The Data Management Group is a research program located ........................................................................................................ 3 Text-based Data Retrieval System `drs

Toronto, University of

189

INTERNATIONAL SPACE EXPLORATION COORDINATION GROUP  

E-Print Network [OSTI]

space exploration infrastructure standards facilitating interoperability through an international with relevant existing international working groups/ organisations. · Preparation and Organization of a WS1 INTERNATIONAL SPACE EXPLORATION COORDINATION GROUP WORKPLAN Update following 3rd ISECG Meeting

190

Fermilab Steering Group Report  

SciTech Connect (OSTI)

The Fermilab Steering Group has developed a plan to keep U.S. accelerator-based particle physics on the pathway to discovery, both at the Terascale with the LHC and the ILC and in the domain of neutrinos and precision physics with a high-intensity accelerator. The plan puts discovering Terascale physics with the LHC and the ILC as Fermilab's highest priority. While supporting ILC development, the plan creates opportunities for exciting science at the intensity frontier. If the ILC remains near the Global Design Effort's technically driven timeline, Fermilab would continue neutrino science with the NOVA experiment, using the NuMI (Neutrinos at the Main Injector) proton plan, scheduled to begin operating in 2011. If ILC construction must wait somewhat longer, Fermilab's plan proposes SNuMI, an upgrade of NuMI to create a more powerful neutrino beam. If the ILC start is postponed significantly, a central feature of the proposed Fermilab plan calls for building an intense proton facility, Project X, consisting of a linear accelerator with the currently planned characteristics of the ILC combined with Fermilab's existing Recycler Ring and the Main Injector accelerator. The major component of Project X is the linac. Cryomodules, radio-frequency distribution, cryogenics and instrumentation for the linac are the same as or similar to those used in the ILC at a scale of about one percent of a full ILC linac. Project X's intense proton beams would open a path to discovery in neutrino science and in precision physics with charged leptons and quarks. World-leading experiments would allow physicists to address key questions of the Quantum Universe: How did the universe come to be? Are there undiscovered principles of nature: new symmetries, new physical laws? Do all the particles and forces become one? What happened to the antimatter? Building Project X's ILC-like linac would offer substantial support for ILC development by accelerating the industrialization of ILC components in the U.S. and creating an engineering opportunity for ILC cost reductions. It offers an early and tangible application for ILC R&D in superconducting technology, attracting participation from accelerator scientists worldwide and driving forward the technology for still higher-energy accelerators of the future, such as a muon collider. To prepare for a future decision, the Fermilab Steering Group recommends that the laboratory seek R&D support for Project X, in order to produce an overall design of Project X and to spur the R&D and industrialization of ILC linac components needed for Project X. Advice from the High Energy Physics Advisory Panel will guide any future decision to upgrade the Fermilab accelerator complex, taking into account developments affecting the ILC schedule and the continuing evaluation of scientific priorities for U.S. particle physics. Fermilab should also work toward increased resources for longer-term future accelerators such as a muon collider, aiming at higher energies than the ILC would provide.

Beier, Eugene; /Pennsylvania U.; Butler, Joel; /Fermilab; Dawson, Sally; /Brookhaven; Edwards, Helen; /Fermilab; Himel, Thomas; /SLAC; Holmes, Stephen; /Fermilab; Kim, Young-Kee; /Fermilab /Chicago U.; Lankford, Andrew; /UC, Irvine; McGinnis, David; /Fermilab; Nagaitsev, Sergei; /Fermilab; Raubenheimer, Tor; /SLAC /Fermilab

2007-01-01T23:59:59.000Z

191

Data Management Group Annual Report  

E-Print Network [OSTI]

Data Management Group Annual Report 2004 City of Hamilton City of Toronto GO Transit Regional of York Toronto Transit Commission The Data Management Group is a research program located of the funding partners: Ministry of Transportation, Ontario #12;SUMMARY The Data Management Group (DMG

Toronto, University of

192

Data Management Group Annual Report  

E-Print Network [OSTI]

Data Management Group Annual Report 1997 #12;Data Management Group Annual Report 1997 A co-operative project that is jointly funded by members of the Toronto Area Transportation Planning Data Collection: (416) 978-3941 #12;Data Management Group 1997 Annual Report Table of Contents 1 INTRODUCTION

Toronto, University of

193

Data Management Group Annual Report  

E-Print Network [OSTI]

Data Management Group Annual Report 2000 prepared by: Data Management Group Joint Program the operation of the EMME/2 simu- lation package on the Data Management Group's computer system. During the year computing resource at the DMG. A major challenge in 2000 was to maintain this service while operating out

Toronto, University of

194

Water Resources Working Group Report  

E-Print Network [OSTI]

Water Resources Working Group Report This report provided content for the Wisconsin Initiative in February 2011. #12;Water Resources Working Group Wisconsin Initiative on Climate Change Impacts October 2010 #12;Water Resources Working Group Members ­ WICCI Tim Asplund (Co-Chair) - Wisconsin Department

Sheridan, Jennifer

195

Correlation properties of loose groups  

SciTech Connect (OSTI)

The two-point spatial correlation function for loose groups of galaxies is computed, using the recently compiled catalog of groups in the southern hemisphere. It is found that the correlation function for groups has a similar slope to that of galaxies but with a smaller amplitude, confirming an earlier result obtained from a similar analysis of the CfA group catalog. This implies that groups of galaxies are more randomly distributed than galaxies, which may be consistent with the predictions of Kashlinsky (1987) for a gravitational clustering scenario for the formation of large-scale structures. 21 refs.

Maia, M.A.G.; Da Costa, L.N. (Observatorio Nacional do Brasil, Rio de Janeiro (Brazil))

1990-02-01T23:59:59.000Z

196

TEC Working Group Topic Groups Rail Conference Call Summaries...  

Office of Environmental Management (EM)

September 11, 1998 Meeting June 22, 1998 Meeting May 27, 1998 Meeting November 3, 1997 Meeting September 18, 1997 Meeting More Documents & Publications TEC Working Group...

197

Health-hazard evaluation report HETA 87-392-2099, Loral Systems Group, Akron, Ohio  

SciTech Connect (OSTI)

In response to a request from the International Union, United Automobile, Aerospace and Agricultural Implement Workers of America (UAW), an evaluation was undertaken of possible health hazards at the Loral Systems Group (SIC-3728) located in Akron, Ohio. Concern was voiced about possible asbestos (1332214) exposure. The company produces wheels and brakes for civilian and military aircraft and currently employs about 1560 persons at the Akron facility. At the time of the study there were about 2300 living retirees. The precise number who had worked in one of the four areas of particular interest was unkown. Of the 166 persons found eligible for inclusion in the health hazard evaluation (15 or more years of potential asbestos exposure in at least one of the four identified programs and still residing in Ohio), 129 participated in a medical evaluation consisting of a chest x-ray, pulmonary function test, and completion of a questionnaire to detail medical and prior work histories. Abnormal pulmonary function results were noted in 39 of these individuals of whom 30 demonstrated an obstructive pattern, three a restrictive pattern, and six both an obstructive and restrictive component. Nonsmoking participants were more likely to report chronic cough, chronic phlegm, and chronic bronchitis than comparisons.

Not Available

1991-02-01T23:59:59.000Z

198

On The Harmonic Oscillator Group  

E-Print Network [OSTI]

We discuss the maximum kinematical invariance group of the quantum harmonic oscillator from a view point of the Ermakov-type system. A six parameter family of the square integrable oscillator wave functions, which seems cannot be obtained by the standard separation of variables, is presented as an example. The invariance group of generalized driven harmonic oscillator is shown to be isomorphic to the corresponding Schroedinger group of the free particle.

Raquel M. Lopez; Sergei K. Suslov; Jose M. Vega-Guzman

2011-12-04T23:59:59.000Z

199

Neil 65 Group Picture Neil 65 Group Picture  

E-Print Network [OSTI]

Neil 65 Group Picture Neil 65 Group Picture December 14, 2003 Row 1: Tom Dowling, Nolan Mc-Marie Belcastro, Chris Stephens, Rajneesh Hegde Row 2: Paul Wollan, Bruce Richter, Mike Plummer, Xiaoya Zha, Dan Bannai, Mike Albertson, Joan Hutchinson, Matt Devos, Tom Zaslovsky, Mark Ellingham, Sandra Kingan, James

Mohar, Bojan

200

Safarevic's Theorem on Solvable Groups as Galois Groups  

E-Print Network [OSTI]

extension Kjk with Galois group G(Kjk) ¸ = G. Ÿ SafareviŸc proved this result in 1954. The intricate proof ) are embedable into G. Then there exists a Galois extension Kjk with Galois group isomorphic to G, which

Note: This page contains sample records for the topic "groups 2-digit sic" 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

New Switches for Utility-Scale Inverters: First In-Class Demonstration of a Completely New Type of SiC Bipolar Switch (15kV-20kV) for Utility-Scale Inverters  

SciTech Connect (OSTI)

Solar ADEPT Project: The SiCLAB is developing a new power switch for utility-scale PV inverters that would improve the performance and significantly reduce the size, weight, and energy loss of PV systems. A power switch controls the electrical energy flowing through an inverter, which takes the electrical current from a PV solar panel and converts it into the type and amount of electricity that is compatible with the electric grid. SiCLAB is using silicon carbide (SiC) semiconductors in its new power switches, which are more efficient than the silicon semiconductors used to conduct electricity in most conventional power switches today. Switches with SiC semiconductors can operate at much higher temperatures, as well as higher voltage and power levels than silicon switches. SiC-based power switches are also smaller than those made with silicon alone, so they result in much smaller and lighter electrical devices. In addition to their use in utility-scale PV inverters, SiCLAB’s new power switches can also be used in wind turbines, railways, and other smart grid applications.

None

2011-12-31T23:59:59.000Z

202

Transportation External Coordination Working Group:  

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

External Coordination Working Group: Background and Process Judith Holm National Transportation Program Albuquerque, New Mexico April 21, 2004 TEC History * DOE's Office of...

203

Interagency Sustainability Working Group Members  

Broader source: Energy.gov [DOE]

Chaired by the Federal Energy Management Program, the Interagency Sustainability Working Group is composed of representatives from every major Federal agency.

204

Infrared Thermography (IRT) Working Group  

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

Infrared Thermography (IRT) Working Group Sco McWilliams U.S. Photovoltaic Manufacturing Consor;um (PVMC) Infrared Thermography Infrared Thermography (IRT) has been demonstrated...

205

Lorentz Group in Ray Optics  

E-Print Network [OSTI]

It has been almost one hundred years since Einstein formulated his special theory of relativity in 1905. He showed that the basic space-time symmetry is dictated by the Lorentz group. It is shown that this group of Lorentz transformations is not only applicable to special relativity, but also constitutes the scientific language for optical sciences. It is noted that coherent and squeezed states of light are representations of the Lorentz group. The Lorentz group is also the basic underlying language for classical ray optics, including polarization optics, interferometers, the Poincare\\'e sphere, one-lens optics, multi-lens optics, laser cavities, as well multilayer optics.

S. Baskal; E. Georgieva; Y. S. Kim; M. E. Noz

2004-01-18T23:59:59.000Z

206

A NEW APPROACH TO JOINING SIC/SIC COMPOSITES  

SciTech Connect (OSTI)

A new approach to joining SiC-based ceramics is described and evaluated for Fusion Energy systems. The joining method is based on pre-ceramic polymers filled with reactive and inert filler powders and is similar to other approaches that use such materials. This approach differs in the particular polymer system and in the details of the processing. A principal advantage of this approach relative to other, similar approaches is that the polymer system is easily handled in ambient air and can be processed in air. This makes the joining process simple and field repairable. The joining compound is a liquid that can be painted, sprayed, or applied by dip coating.

Henager, Charles H.

2004-06-30T23:59:59.000Z

207

Research documentation per participating group  

E-Print Network [OSTI]

Research documentation per participating group #12;2. RESEARCH DOCUMENTATION OF THE GROUP SYSTEM Management Hybrid trucks StDy Steen, R. v.d. (PhD 3) FEM Tyre Modelling StDy 5.4 Mechanical Design Bedem, Ir

Franssen, Michael

208

Federal Utility Partnership Working Group  

Broader source: Energy.gov [DOE]

The Federal Utility Partnership Working Group (FUPWG) establishes partnerships and facilitates communications among Federal agencies, utilities, and energy service companies. The group develops strategies to implement cost-effective energy efficiency and water conservation projects through utility incentive programs at Federal sites.

209

SiC Power Module  

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

energy from renewable sources (i.e., solar arrays or wind generators), and provide power for a wide variety of electronics and electronic systems (DC power supplies and...

210

EI Summary of SIC 20  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623 4623and2,81920,523 21,5947,603

211

EI Summary of SIC 22  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623 4623and2,81920,523 21,5947,603Textiles

212

EI Summary of SIC 23  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623 4623and2,81920,523

213

EI Summary of SIC 24  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623 4623and2,81920,523Lumber (24) All

214

EI Summary of SIC 25  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623 4623and2,81920,523Lumber (24)

215

EI Summary of SIC 26  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623 4623and2,81920,523Lumber (24)Paper (26)

216

EI Summary of SIC 27  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623 4623and2,81920,523Lumber (24)Paper

217

EI Summary of SIC 28  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623 4623and2,81920,523Lumber

218

EI Summary of SIC 29  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623 4623and2,81920,523LumberRefineries (29)

219

EI Summary of SIC 30  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623 4623and2,81920,523LumberRefineries

220

EI Summary of SIC 32  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623

Note: This page contains sample records for the topic "groups 2-digit sic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

EI Summary of SIC 33  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623Primary Metals (33) All (20-39) Food

222

EI Summary of SIC 34  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623Primary Metals (33) All (20-39)

223

EI Summary of SIC 35  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623Primary Metals (33) All (20-39)Machinery

224

EI Summary of SIC 36  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623Primary Metals (33) All

225

EI Summary of SIC 38  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623Primary Metals (33) AllInstruments (38)

226

EI Summary of SIC 39  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623Primary Metals (33) AllInstruments

227

SiC Power Module  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmitted forHighlightsSeminars SeminarsO'LearyGlobalMarketSi Wu d3p754

228

Groups  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power BasicsGermany: Energy ResourcesNewsInformation

229

Sustainability Community Special Interest Group  

E-Print Network [OSTI]

Sustainability Community Special Interest Group Meeting, CHI 2012 Eli Blevis, Yue Pan, & David: Weather Effects #12;Discussion Catalyst: Social Sustainability #12;Discussion Catalyst: Barriers & Brick Catalyst: Education #12;Discussion Catalyst: Cultural Factors #12;Discussion Catalyst: Finding Our Way #12

Blevis, Eli

230

Ayrshire Red Squirrel Group Squirrelpox  

E-Print Network [OSTI]

Ayrshire Red Squirrel Group SSG Report 1st March 2012 Squirrelpox Sero-positive grey squirrels. Concerns are also rising that there may be outbreaks of pox in red squirrel populations which have gone

231

Midwest Hydro Users Group Meeting  

Broader source: Energy.gov [DOE]

The Midwest Hydro Users Group will be holding their annual Fall meeting on November 12th and 13th in Wausau, Wisconsin.  An Owners-only meeting on the afternoon of the 12th followed by a full...

232

Galois Groups of Schubert Problems  

E-Print Network [OSTI]

GALOIS GROUPS OF SCHUBERT PROBLEMS A Dissertation by ABRAHAM MARTIN DEL CAMPO SANCHEZ Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY... August 2012 Major Subject: Mathematics GALOIS GROUPS OF SCHUBERT PROBLEMS A Dissertation by ABRAHAM MARTIN DEL CAMPO SANCHEZ Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

Martin Del Campo Sanchez, Abraham

2012-10-19T23:59:59.000Z

233

LLNL Chemical Kinetics Modeling Group  

SciTech Connect (OSTI)

The LLNL chemical kinetics modeling group has been responsible for much progress in the development of chemical kinetic models for practical fuels. The group began its work in the early 1970s, developing chemical kinetic models for methane, ethane, ethanol and halogenated inhibitors. Most recently, it has been developing chemical kinetic models for large n-alkanes, cycloalkanes, hexenes, and large methyl esters. These component models are needed to represent gasoline, diesel, jet, and oil-sand-derived fuels.

Pitz, W J; Westbrook, C K; Mehl, M; Herbinet, O; Curran, H J; Silke, E J

2008-09-24T23:59:59.000Z

234

Networks Spanish project COPABIB Group Murcia Group Polit. Valencia Group La Laguna Computation in heterogeneous-hierarchical  

E-Print Network [OSTI]

Networks Spanish project COPABIB Group Murcia Group Polit. Valencia Group La Laguna Computation in heterogeneous-hierarchical environments Project COPABIB: Univ. Alicante, Castell´on, La Laguna, Murcia COPABIB Group Murcia Group Polit. Valencia Group La Laguna Contents 1 Networks 2 Spanish project COPABIB 3

Giménez, Domingo

235

Introduction Abstract reflection groups and abstract buildings  

E-Print Network [OSTI]

Introduction Abstract reflection groups and abstract buildings Their geometric realizations Compactly supported cohomology L2 -cohomology Cohomology of Coxeter groups and buildings Mike Davis (work groups and buildings #12;Introduction Abstract reflection groups and abstract buildings Their geometric

Vogtmann, Karen

236

CFCC working group meeting: Proceedings  

SciTech Connect (OSTI)

This report is a compilation of the vugraphs presented at this meeting. Presentations covered are: CFCC Working Group; Overview of study on applications for advanced ceramics in industries for the future; Design codes and data bases: The CFCC program and its involvement in ASTM, ISO, ASME, and military handbook 17 activities; CFCC Working Group meeting (McDermott Technology); CFCC Working Group meeting (Textron); CFCC program for DMO materials; Developments in PIP-derived CFCCs; Toughened Silcomp (SiC-Si) composites for gas turbine engine applications; CFCC program for CVI materials; Self-lubricating CFCCs for diesel engine applications; Overview of the CFCC program`s supporting technologies task; Life prediction methodologies for CFCC components; Environmental testing of CFCCs in combustion gas environments; High-temperature particle filtration ORNL/DCC CRADA; HSCT CMC combustor; and Case study -- CFCC shroud for industrial gas turbines.

NONE

1997-12-31T23:59:59.000Z

237

Task Group 9 Update (Presentation)  

SciTech Connect (OSTI)

This presentation is a brief update of IEC TC82 QA Task Force, Group 9. Presented is an outline of the recently submitted New Work Item Proposal (NWIP) for a Comparative Thermal Cycling Test for CPV Modules to Differentiate Thermal Fatigue Durability.

Bosco, N.

2014-04-01T23:59:59.000Z

238

Data Management Group Annual Report  

E-Print Network [OSTI]

of Civil Engineering, Uni- versity of Toronto Data Management Groups Web Site http Susanna Choy, B.A.Sc. (Industrial Engineering), M.Eng. (Civil Engineering) Uni- versity of Toronto, P.Eng. Reuben Briggs, B.A.Sc. (Civil Engineering), M.A.Sc. (Civil Engineering) Univer- sity of Toronto, P

Toronto, University of

239

Systems Biology Group Decision Making  

E-Print Network [OSTI]

entities (e.g., molecular, cellular, organism, ecological) #12;OHIO STATE T . H . E UNIVERSITY Systems/analysis of perception, attention, choice, learning, optimality,... #12;OHIO STATE T . H . E UNIVERSITY Group decision making, evolution and ecology Current work: Modeling/analysis of coordinated motion, foraging, choice

240

Geodesic spaces : momentum Groups : symmetry  

E-Print Network [OSTI]

Geodesic spaces : momentum :: Groups : symmetry Vaughan Pratt Stanford University BLAST 2010 a · b denoting b rotated 90 degrees about a. End of reprise. 3. This talk; Geodesic spaces At FMCS. as points evenly spaced along a geodesic , right distributivity expresses a symmetry of about an arbitrary

Pratt, Vaughan

Note: This page contains sample records for the topic "groups 2-digit sic" 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

Policy Groups Winfried E. Kuhnhauser  

E-Print Network [OSTI]

1 Policy Groups Winfried E. Kuhnhauser GMD National Research Center For Information Technology D: Systems that support a multitude of independent security domains in which an individual security policy domains consti- tutes a major problem. While security policies are capable of controlling the applications

KĂĽhnhauser, Winfried

242

Energy Systems Group Annual Report  

E-Print Network [OSTI]

and attracted over 230 attendees. The chairman of the Texas Railroad Commission, Mack Wallace was the keynote speaker and Ralph Lewis, formerly Vice President of Gulf Oil Company, was the luncheon speaker. There were twenty-four technical papers, four tutorial...-eight papers, four tutorial seminars and three discussion groups. Dr. Arthur Rosenfield, program leader at Lawrence Berkeley Laboratory, was the first luncheon speaker and Dr. Albert Bartlett from the University of Colorado was the seond luncheon speaker...

Anand, N. K.; Caton, J.; Heffington, W. M.; O'Neal, D. L.; Somasundaram, S.; Turner, W. D.

1986-01-01T23:59:59.000Z

243

Pollutant Assessments Group Procedures Manual  

SciTech Connect (OSTI)

This procedures manual combines the existing procedures for radiological and chemical assessment of hazardous wastes used by the Pollutant Assessments Group at the time of manuscript completion (October 1, 1990). These procedures will be revised in an ongoing process to incorporate new developments in hazardous waste assessment technology and changes in administrative policy and support procedures. Format inconsistencies will be corrected in subsequent revisions of individual procedures.

Chavarria, D.E.; Davidson, J.R.; Espegren, M.L.; Kearl, P.M.; Knott, R.R.; Pierce, G.A.; Retolaza, C.D.; Smuin, D.R.; Wilson, M.J.; Witt, D.A. (Oak Ridge National Lab., TN (USA)); Conklin, N.G.; Egidi, P.V.; Ertel, D.B.; Foster, D.S.; Krall, B.J.; Meredith, R.L.; Rice, J.A.; Roemer, E.K. (Oak Ridge Associated Universities, Inc., TN (USA))

1991-02-01T23:59:59.000Z

244

Ostwind Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy ResourcesLoading map...(UtilityCounty,Orleans County, Vermont: EnergyThis articleOslo,Ostwind Group Jump

245

Copisa Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentratingRenewable Solutions LLC Jump to:Information New YorkGeothermalCoorsCopisa Group

246

Ralos Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, search RAPIDColoradosource HistoryRaft River0422° LoadingRalos Group Jump

247

Anel Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORT Americium/Curium VitrificationAltensol Jump to:AmbientAWEAAnel Group

248

PROGRAMME GROUP RESEARCH UPDATE: Biodiversity indicators &  

E-Print Network [OSTI]

1 PROGRAMME GROUP RESEARCH UPDATE: Biodiversity indicators & knowledge management programme group Introduction Duncan Ray The programme group Biodiversity Indicators and Knowledge Management (BIKM) was established by the merger of the Biodiversity Indicators & Evaluation Programme and the Decision Support

249

Fermilab | Employee Advisory Group | Employee Advisory Group Members  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibility ofSmall15.000 Rev.Group Members Sabina Aponte, PPD

250

TEC Working Group Topic Groups | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of Energy StrainClient update resolve008 HighDepartmentTopic Groups TEC

251

Nick Wright Named Advanced Technologies Group Lead  

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

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

252

NERSC seeks Computational Systems Group Lead  

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

seeks Computational Systems Group Lead NERSC seeks Computational Systems Group Lead January 6, 2011 by Katie Antypas Note: This position is now closed. The Computational Systems...

253

Communications and Media Relations Group  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User Group and UserofProtein structureAnalysisDOE-IDCommunications and

254

Noribachi Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy ResourcesLoading map...(Utility Company) Jump to:City) JumpOpenJV JumpTectonicNoribachi Group Jump to:

255

ESV Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37. It is classified as ASHRAEDuvalJusticeEPS Corp JumpESV Group Jump to:

256

Velankani Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov PtyInformation UCOpen EnergyVelankani Group Jump to: navigation, search Name:

257

ASD Groups | Advanced Photon Source  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAre the Effects of GlobalASCR User Facilities UserASD Groups

258

Angeleno Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300Algoil JumpAltergyExperiments | OpenTheInformationAngeleno Group Jump to:

259

Arakaki Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300AlgoilEnergy Information theDevelopment Co. Place:Aquilla,Arakaki Group

260

David Turner! User Services Group  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phasesData Files Data Files 1 EIA BestDavidNERSC FileUser Services Group

Note: This page contains sample records for the topic "groups 2-digit sic" 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

Tecate Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-gTaguspark Jump to: navigation, searchTecate Group Jump to: navigation,

262

Verdeo Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 South Place: Salt Lake City, Utah Zip:ScaleVegetationVerdeo Group Jump to:

263

Noble Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's HeatMexico: EnergyMithunCenterInformationNexxus(CTIChateaugay WindInGroup

264

APS ASD Diagnostics Group Homepage  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience4AJ01) (See95TI07)Operations2AP-XPS Measures MIEC5Diagnostics Group

265

Richway Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia Blue RidgeUniversity of California,Richmond is aRichway Group

266

Enerbio Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37. It is classifiedProject)EnerVault Corporation Jump to:Enerbio Group Jump

267

Selective-area room temperature visible photoluminescence from SiC/Si heterostructures  

E-Print Network [OSTI]

shown8 to produce monocrystalline thin films, while minimizing the high temperature exposure. The Sic mismatch, heteroepitaxial growth of Sic films on Si has been achieved by several groups?-' In addition, SicSi. For example, polycrystalline Sic deposited on Si after it is rendered porous has been utilized9

Steckl, Andrew J.

268

Johnson Research Group University of New Hampshire  

E-Print Network [OSTI]

group at Boston University. http://sites.bu.edu/porcogrp/ #12;Microwave Flash Pyrolysis: Making Reactive

New Hampshire, University of

269

Exascale Hardware Architectures Working Group  

SciTech Connect (OSTI)

The ASC Exascale Hardware Architecture working group is challenged to provide input on the following areas impacting the future use and usability of potential exascale computer systems: processor, memory, and interconnect architectures, as well as the power and resilience of these systems. Going forward, there are many challenging issues that will need to be addressed. First, power constraints in processor technologies will lead to steady increases in parallelism within a socket. Additionally, all cores may not be fully independent nor fully general purpose. Second, there is a clear trend toward less balanced machines, in terms of compute capability compared to memory and interconnect performance. In order to mitigate the memory issues, memory technologies will introduce 3D stacking, eventually moving on-socket and likely on-die, providing greatly increased bandwidth but unfortunately also likely providing smaller memory capacity per core. Off-socket memory, possibly in the form of non-volatile memory, will create a complex memory hierarchy. Third, communication energy will dominate the energy required to compute, such that interconnect power and bandwidth will have a significant impact. All of the above changes are driven by the need for greatly increased energy efficiency, as current technology will prove unsuitable for exascale, due to unsustainable power requirements of such a system. These changes will have the most significant impact on programming models and algorithms, but they will be felt across all layers of the machine. There is clear need to engage all ASC working groups in planning for how to deal with technological changes of this magnitude. The primary function of the Hardware Architecture Working Group is to facilitate codesign with hardware vendors to ensure future exascale platforms are capable of efficiently supporting the ASC applications, which in turn need to meet the mission needs of the NNSA Stockpile Stewardship Program. This issue is relatively immediate, as there is only a small window of opportunity to influence hardware design for 2018 machines. Given the short timeline a firm co-design methodology with vendors is of prime importance.

Hemmert, S; Ang, J; Chiang, P; Carnes, B; Doerfler, D; Leininger, M; Dosanjh, S; Fields, P; Koch, K; Laros, J; Noe, J; Quinn, T; Torrellas, J; Vetter, J; Wampler, C; White, A

2011-03-15T23:59:59.000Z

270

Renormalization group aspects of graphene  

E-Print Network [OSTI]

Graphene is a two dimensional crystal of carbon atoms with fascinating electronic and morphological properties. The low energy excitations of the neutral, clean system are described by a massless Dirac Hamiltonian in (2+1) dimensions which also captures the main electronic and transport properties. A renormalization group analysis sheds light on the success of the free model: due to the special form of the Fermi surface which reduces to two single points in momentum space, short range interactions are irrelevant and only gauge interactions like long range Coulomb or effective disorder can play a role in the low energy physics. We review these features and discuss briefly other aspects related to disorder and to the bilayer material along the same lines.

Maria A. H. Vozmediano

2010-10-25T23:59:59.000Z

271

Properties of Group Five and Group Seven transactinium elements  

SciTech Connect (OSTI)

The detection and positive identification of the short-lived, low cross section isotopes used in the chemical studies of the heaviest elements are usually accomplished by measuring their alpha-decay, thus the nuclear properties of the heaviest elements must be examined simultaneously with their chemical properties. The isotopes 224 Pa and 266,267 Bh have been studied extensively as an integral part of the investigation of the heaviest members of the groups five and seven of the periodic table. The half-life of 224 Pa was determined to be 855 plus/minus19 ms by measuring its alpha-decay using our rotating wheel, solid state detector system at the Lawrence Berkeley National Laboratory 88-Inch Cyclotron. Protactinium was produced by bombardment of a bismuth target. New neutron rich isotopes, 267 Bh and 266 Bh, were produced in bombardments of a 249 Bk target and their decay was observed using the rotating wheel system. The 266 Bh that was produced decays with a half-life of approximately 1 s by emission of alpha particles with an average energy of 9.25 plus/minus 0.03 MeV. 267 Bh was observed to decay with a 17 s half-life by emission of alpha-particles with an average energy of 8.83 plus/minus 0.03 MeV. The chemical behavior of hafnium, Ha (element 105) was investigated using the fast on-line continuous liquid extraction and detection system SISAK-LISSY. Hafnium was not observed in this experiment following transport and extraction. Protactinium was used as on-line test of the apparatus to determine the experimental efficiency of the entire system. Unfortunately, the amount of protactinium observed after the extraction, compared to the amount produced, was extremely small, only 2.5%. The extraction of the protactinium isotope indicated the efficiency of the apparatus was too low to observe the extraction of hafnium. The chemical behavior of oxychloride compounds of bohrium was investigated by isothermal gas adsorption chromatography in a quartz column at 180, 150, and 75 C. It was found to be less volatile than the corresponding compounds of the lighter group seven homologues, rhenium and technetium, which had been measured previously with the same apparatus. Assuming the bohrium compound to be BhO3Cl, the evaluated standard adsorption enthalpy, and delta-Hads, of BhO3Cl on the quartz surface was calculated from Monte Carlo fits to the volatility data to be -75 kJ/mol. The adsorption enthalpies for TcO3Cl and ReO3Cl are -51 and -61 kJ/mol respectively.

Wilk, Philip A.

2001-05-01T23:59:59.000Z

272

Abstract Error Groups Via Jones Unitary Braid Group Representations at q=i  

E-Print Network [OSTI]

In this paper, we classify a type of abstract groups by the central products of dihedral groups and quaternion groups. We recognize them as abstract error groups which are often not isomorphic to the Pauli groups in the literature. We show the corresponding nice error bases equivalent to the Pauli error bases modulo phase factors. The extension of these abstract groups by the symmetric group are finite images of the Jones unitary representations (or modulo a phase factor) of the braid group at q=i or r=4. We hope this work can finally lead to new families of quantum error correction codes via the representation theory of the braid group.

Yong Zhang

2009-02-02T23:59:59.000Z

273

Contributory Group Key Agreement Protocols, Revisited for Mobile Ad-Hoc Groups  

E-Print Network [OSTI]

Contributory Group Key Agreement Protocols, Revisited for Mobile Ad-Hoc Groups Mark Manulis Horst of various group-oriented applications for mo- bile ad-hoc groups requires a group secret shared between all- and wide-area wired networks, can also be used in ad-hoc sce- narios because of the similar security

Manulis, Mark

274

MACDONALD FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS  

E-Print Network [OSTI]

MACDONALD FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS TOSHIAKI SHOJI Department version of the above Hall-Littlewood functions, as a generalization of Macdonald functions associated to symmetric groups. A generalization of Macdonald operators is also constructed, and we characterize

Shoj, Toshiaki

275

Program Building Committee's Central Planning Group.  

E-Print Network [OSTI]

Tooe ZTA245.7 8873 Y)O./3~ The Texas A&M (stem r ultural ~ion ~ervrce Damet C Plannstlel. Director College Stallon Program Building Committee's CENTRAL PLANNING GROUP 8-1344 Authors: Burl B. Richardson , Extension Program Specialist... and Mary G. Marshall, Extension Program Specialist Program -Building Committee's CENTRAL PLANNING GROUP This leaflet describes the role of the central planning group in the program development process_ The central planning group is the highest...

Richardson, Burl B.; Marshall, Mary G.

1982-01-01T23:59:59.000Z

276

Agenda: High Temperature Membrane Working Group Meeting  

Broader source: Energy.gov [DOE]

Agenda for the High Temperature Membrane Working Group (HTMWG) meeting on May 18, 2009, in Arlington, Virginia

277

Group Study Room Policy and Reservation Form  

E-Print Network [OSTI]

to the Group Study Reservation Form. Fill out the web form and click "Send" to submit the request. A confirming

Reynolds, Albert C.

278

Factor groups, semidirect product and quantum chemistry  

E-Print Network [OSTI]

In this paper we prove some general theorems about representations of finite groups arising from the inner semidirect product of groups. We show how these results can be used for standard applications of group theory in quantum chemistry through the orthogonality relations for the characters of irreducible representations. In this context, conditions for transitions between energy levels, projection operators and basis functions were determined. This approach applies to composite systems and it is illustrated by the dihedral group related to glycolate oxidase enzyme.

Marco A. S. Trindade

2014-02-14T23:59:59.000Z

279

UCIME Group Meeting January 18, 2001  

E-Print Network [OSTI]

a presentation of SCOPE to the Flowers Growers Association in Carpinteria to a very interested and lively group

Clarke, Keith

280

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS  

E-Print Network [OSTI]

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS TOSHIAKI SHOJI Department of Mathematics Science University of Tokyo Noda, Chiba 278­8510, Japan Abstract. Green functions of classical groups this, we define Green functions associated to complex reflection groups G(e, 1, n), and study

Shoj, Toshiaki

Note: This page contains sample records for the topic "groups 2-digit sic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Advisor Resourcesi Advisor-Group Dynamic  

E-Print Network [OSTI]

Advisor Resourcesi Advisor- Group Dynamic A Mutually Beneficial Relationship Exists Between an Organization and its Advisor An advisor provides the group with: · A "sounding board", someone with whom or perspective · Easy access to campus connections The group provides the advisor with: · A unique opportunity

Sherrill, David

282

Group Blind Digital Signatures: Theory and Applications  

E-Print Network [OSTI]

Group Blind Digital Signatures: Theory and Applications by Zul kar Amin Ramzan Submitted Committee on Graduate Students #12;Group Blind Digital Signatures: Theory and Applications by Zul kar Amin Blind Digital Signature. This construct combines the already existing notions of a Group Digital

Goldwasser, Shafi

283

Group Blind Digital Signatures: Theory and Applications  

E-Print Network [OSTI]

Group Blind Digital Signatures: Theory and Applications by Zulfikar Amin Ramzan Submitted by . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Arthur C. Smith Chairman, Departmental Committee on Graduate Students #12; Group Blind Digital Signatures cryptographic construct called a Group Blind Digital Signature. This construct combines the already existing

Goldwasser, Shafi

284

Computer Graphics Group Leif KobbeltAACHEN  

E-Print Network [OSTI]

Computer Graphics Group Leif KobbeltAACHEN Computer Graphics Leif Kobbelt Computer Graphics Group Leif KobbeltAACHEN Public Perception of CG · Games · Movies Computer Graphics Group Leif KobbeltAACHEN Computer Graphics Research · fundamental algorithms & data structures - continuous & discrete mathematics

Kobbelt, Leif

285

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

E-Print Network [OSTI]

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

Boonstra, Rudy

286

Utility Variable Generation Integration Group Fall O&M User Group...  

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

O&M User Group Meeting Utility Variable Generation Integration Group Fall O&M User Group Meeting October 1, 2014 7:00AM CDT to October 2, 2014 3:00PM CDT The Utility Variable...

287

INVERTIBLE AND NILPOTENT ELEMENTS IN THE GROUP ALGEBRA OF A UNIQUE PRODUCT GROUP  

E-Print Network [OSTI]

INVERTIBLE AND NILPOTENT ELEMENTS IN THE GROUP ALGEBRA OF A UNIQUE PRODUCT GROUP ERHARD NEHER Abstract. We describe the nilpotent and invertible elements in group alge- bras k[G] for k a commutative. A fundamental problem in the theory of group algebras is to determine their units = invertible elements

Neher, Erhard

288

Population Biology Graduate Group Bylaws of the Population Biology Graduate Group  

E-Print Network [OSTI]

Population Biology Graduate Group Bylaws of the Population Biology Graduate Group Amended and Approved: February 1, 1994 I. Definition of the Graduate Group in Population Biology The purpose of this graduate group is to bring together faculty and graduate students interested in population biology

Wainwright, Peter C.

289

Health Research Groups 2013 Research Group Leaders and Co-leaders are in Bold font  

E-Print Network [OSTI]

Therapy/Medicine Gerdts, Volker Western College of Veterinary Medicine/VIDO #12;Health Research Groups

Saskatchewan, University of

290

Automatic identification of abstract online groups  

DOE Patents [OSTI]

Online abstract groups, in which members aren't explicitly connected, can be automatically identified by computer-implemented methods. The methods involve harvesting records from social media and extracting content-based and structure-based features from each record. Each record includes a social-media posting and is associated with one or more entities. Each feature is stored on a data storage device and includes a computer-readable representation of an attribute of one or more records. The methods further involve grouping records into record groups according to the features of each record. Further still the methods involve calculating an n-dimensional surface representing each record group and defining an outlier as a record having feature-based distances measured from every n-dimensional surface that exceed a threshold value. Each of the n-dimensional surfaces is described by a footprint that characterizes the respective record group as an online abstract group.

Engel, David W; Gregory, Michelle L; Bell, Eric B; Cowell, Andrew J; Piatt, Andrew W

2014-04-15T23:59:59.000Z

291

USD Catalysis Group for Alternative Energy  

SciTech Connect (OSTI)

The South Dakota Catalysis Group (SDCG) is a collaborative project with mission to develop advanced catalysts for energy conversion with two primary goals: (1) develop photocatalytic systems in which polyfunctionalized TiO2 are the basis for hydrogen/oxygen synthesis from water and sunlight (solar fuels group), (2) develop new materials for hydrogen utilization in fuel cells (fuel cell group). In tandem, these technologies complete a closed chemical cycle with zero emissions.

James D. Hoefelmeyer, Ranjit Koodali, Grigoriy Sereda, Dan Engebretson, Hao Fong, Jan Puszynski, Rajesh Shende, Phil Ahrenkiel

2012-03-13T23:59:59.000Z

292

Transportation Protocols Working Group First Conference Call...  

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

Call March 1, 1999 Conference Call Summary The first conference call of the Transportation External Coordination Working Group (TECWG) DOE Transportation Protocols Working...

293

Group 3: Humidity, Temperature, and Voltage (Presentation)  

SciTech Connect (OSTI)

Group 3 is chartered to develop accelerated stress tests that can be used as comparative predictors of module lifetime versus stresses associated with humidity, temperature and voltage.

Wohlgemuth, J.

2013-05-01T23:59:59.000Z

294

The Spin Holonomy Group In General Relativity  

E-Print Network [OSTI]

It has recently been shown by Goldberg et al that the holonomy group of the chiral spin-connection is preserved under time evolution in vacuum general relativity. Here, the underlying reason for the time-independence of the holonomy group is traced to the self-duality of the curvature 2-form for an Einstein space. This observation reveals that the holonomy group is time-independent not only in vacuum, but also in the presence of a cosmological constant. It also shows that once matter is coupled to gravity, the "conservation of holonomy" is lost. When the fundamental group of space is non-trivial, the holonomy group need not be connected. For each homotopy class of loops, the holonomies comprise a coset of the full holonomy group modulo its connected component. These cosets are also time-independent. All possible holonomy groups that can arise are classified, and examples are given of connections with these holonomy groups. The classification of local and global solutions with given holonomy groups is discussed.

Ted Jacobson; Joseph D. Romano

1992-07-23T23:59:59.000Z

295

Federal Utility Partnership Working Group Utility Partners  

Broader source: Energy.gov [DOE]

Federal Utility Partnership Working Group (FUPWG) utility partners are eager to work closely with Federal agencies to help achieve energy management goals.

296

Federal Utility Partnership Working Group Participants | Department...  

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

in the Federal Utility Partnership Working Group or engaged in a utility energy service contract project. General Services Administration National Aeronautics and Space...

297

Clark Energy Group ESCO Qualification Sheet  

Broader source: Energy.gov [DOE]

Document outlines the energy service company (ESCO) qualifications for Clark Energy Group in relation to the U.S. Department of Energy's (DOEs) energy savings performance contracts (ESPC).

298

Federal Utility Partnership Working Group Participants  

Broader source: Energy.gov [DOE]

The following Federal agencies have participated in the Federal Utility Partnership Working Group or engaged in a utility energy service contract project.

299

Distributed Energy Systems Integration Group (Fact Sheet)  

SciTech Connect (OSTI)

Factsheet developed to describe the activites of the Distributed Energy Systems Integration Group within NREL's Electricity, Resources, and Buildings Systems Integration center.

Not Available

2009-10-01T23:59:59.000Z

300

Convolution type operators on locally compact groups  

E-Print Network [OSTI]

Shtein--~erg, Convolution Type Operators on Locally Compact Groups [in Russian],. Manuscript Deposited in the All-Union Institute of Scientific and Technical ...

Note: This page contains sample records for the topic "groups 2-digit sic" 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

Plenia Locatel Group: Globalizing from Venezuela  

E-Print Network [OSTI]

In 2009 the founders and top executives of Plenia Locatel Group, a retail business in Venezuela specializing in health care products and services, were planning a global

Gibson, Cyrus

2009-05-01T23:59:59.000Z

302

. . . . . 85 . . . . . International Deep Drawing Research Group  

E-Print Network [OSTI]

. . . . . 85 . . . . . International Deep Drawing Research Group IDDRG 2009 International 20899-855 USA e-mail: mark.iadicola@nist.gov, Web page: www

303

Institut Eurecom1 Institut Eurecom research is partially supported by its industrial members: BMW Group Research & Technology BMW Group  

E-Print Network [OSTI]

: BMW Group Research & Technology ­ BMW Group Company, Bouygues Telecom, Cisco Systems, France Telecom

Gesbert, David

304

RENEWABLE ENERGY GROUPS COVET FUSION'S BUDGET  

E-Print Network [OSTI]

RENEWABLE ENERGY GROUPS COVET FUSION'S BUDGET A group called the Energy Efficiency Education-effective and environmentally sound energy- efficiency and renewable energy programs." Rep. Philip R. Sharp (D-IN) and chair the resolution, H. Con. Res. 188). Sharp said "For too long, cost-effectiveefficiencyand renewable energy

305

Fusion Technology Working Group Presented by  

E-Print Network [OSTI]

Snowmass Fusion Technology Working Group Summary Presented by M. Abdou, S. Milora Snowmass July 23, 1999 #12;Technology Working Group Subgroup # 1 Subgroup # 2 Solid Walls Ulrickson / Mattas Liquid Walls / Ying Chamber Technology Abdou / Ulrickson Heating/CD/Fueling Swain / Temkin Magnets Schultz / Woolley

Abdou, Mohamed

306

1Nanomaterials for Energy Group Byungwoo Park  

E-Print Network [OSTI]

(2011). Advantages of Quantum-Dot-Sensitized Solar Cells #12;8Nanomaterials for Energy Group://bp.snu.ac.kr Cutting-Edge Nanomaterials for Energy: Solar Cell · Li+ Battery #12;2Nanomaterials for Energy Group Fuel Cell Solar Panel Portable Devices Solar Cell Phosphor Li+ Battery #12;4Nanomaterials for Energy

Cho, Jaephil

307

Group 3: Humidity, Temperature and Voltage (Presentation)  

SciTech Connect (OSTI)

This is a summary of the work of Group 3 of the International PV QA Task Force. Group 3 is chartered to develop accelerated stress tests that can be used as comparative predictors of module lifetime versus stresses associated with humidity, temperature and voltage.

Wohlgemuth, J.

2013-09-01T23:59:59.000Z

308

GSD Student Forum Student Group Spending Guidelines  

E-Print Network [OSTI]

GSD Student Forum Student Group Spending Guidelines September 2010 Questions regarding this document should be directed to the Student Forum Treasurer Purpose: This document serves to establish for GSD student groups guidelines on appropriate expenditures when using funding provided by Student Forum

309

Active Learning of Group-Structured Environments  

E-Print Network [OSTI]

Active Learning of Group-Structured Environments G´abor Bart´ok, Csaba Szepesv´ari , Sandra Zilles with their environment. We investigate learning environments that have a group structure. We introduce a learning model an environment from partial information is far from trivial. However, positive results for special subclasses

Szepesvari, Csaba

310

University of Paderborn Software Engineering Group  

E-Print Network [OSTI]

University of Paderborn Software Engineering Group 1 Subversion Configuration with Eclipse Softwaretechnikpraktikum 2006 #12;University of Paderborn Software Engineering Group 2 Installing SubclipseInstalling Subclipse Find and install new feature Use the Subclipse update site #12;University of Paderborn Software

Kindler, Ekkart

311

Telecommunication Networks Group Technische Universitt Berlin  

E-Print Network [OSTI]

Telecommunication Networks Group What can you do with MiXiM Supports energy consumption by ported Energy- Framework Energy consumption Focus on lower layers (Layer 1 + 2) #12;TKN Telecommunication Networks Group Outline) with energy consumption support Different channel-effects: LogNormalShadowing, SimplePathloss and Rayleigh

Wichmann, Felix

312

BREAST CANCER GROUP WOMEN'S HEALTH INTERDISCIPLINARY  

E-Print Network [OSTI]

BREAST CANCER GROUP May 2009 WOMEN'S HEALTH INTERDISCIPLINARY RESEARCH CENTER [WHIRC] #12;2 Table: Breast Cancer Research and Treatment 4 Basic/Translational Research Carcinogenesis and Signaling Group 5R) Signaling in Breast Cancer 6 NF-B Family of Transcription Factors in Breast Cancer 7 Transgenic Mouse

Spence, Harlan Ernest

313

Identifying Risk Groups Associated with Colorectal Cancer  

E-Print Network [OSTI]

Identifying Risk Groups Associated with Colorectal Cancer Jie Chen1 , Hongxing He1 , Huidong Jin1 of identifying and describing risk groups for colorectal cancer (CRC) from population based administrative health are applied to the colorectal cancer patients' profiles in contrast to background pa- tients' profiles

Jin, Huidong "Warren"

314

Permutation groups, minimal degrees and quantum computing  

E-Print Network [OSTI]

We study permutation groups of given minimal degree without the classical primitivity assumption. We provide sharp upper bounds on the order of a permutation group of minimal degree m and on the number of its elements of any given support. These results contribute to the foundations of a non-commutative coding theory. A main application of our results concerns the Hidden Subgroup Problem for the symmetric group in Quantum Computing. We completely characterize the hidden subgroups of the symmetric group that can be distinguished from identity with weak Quantum Fourier Sampling, showing these are exactly the subgroups with bounded minimal degree. This implies that the weak standard method for the symmetric group has no advantage whatsoever over classical exhaustive search.

Julia Kempe; Laszlo Pyber; Aner Shalev

2006-07-28T23:59:59.000Z

315

On perfect order subsets in finite groups  

E-Print Network [OSTI]

If $G$ is a finite group and $x\\in G$ then the set of all elements of $G$ having the same order as $x$ is called {\\em an order subset of $G$ determined by $x$} (see [2]). We say that $G$ is a {\\em group with perfect order subsets} or briefly, $G$ is a {\\em $POS$-group} if the number of elements in each order subset of $G$ is a divisor of $|G|$. In this paper we prove that for any $n\\geq 4$, the symmetric group $S_n$ is not $POS$-group. This gives the positive answer to one of two questions rising from Conjecture 5.2 in [3].

Tuan, Nguyen Trong

2010-01-01T23:59:59.000Z

316

Quantum Mechanics associated with a Finite Group  

E-Print Network [OSTI]

I describe, in the simplified context of finite groups and their representations, a mathematical model for a physical system that contains both its quantum and classical aspects. The physically observable system is associated with the space containing elements fxf for f an element in the regular representation of a given finite group G. The Hermitian portion of fxf is the Wigner distribution of f whose convolution with a test function leads to a mathematical description of the quantum measurement process. Starting with the Jacobi group that is formed from the semidirect product of the Heisenberg group with its automorphism group SL(2,F{N}) for N an odd prime number I show that the classical phase space is the first order term in a series of subspaces of the Hermitian portion of fxf that are stable under SL(2,F{N}). I define a derivative that is analogous to a pseudodifferential operator to enable a treatment that parallels the continuum case. I give a new derivation of the Schrodinger-Weil representation of the Jacobi group. Keywords: quantum mechanics, finite group, metaplectic. PACS: 03.65.Fd; 02.10.De; 03.65.Ta.

Robert W. Johnson

2006-04-20T23:59:59.000Z

317

Representations of the groups of order 64  

E-Print Network [OSTI]

-seven groups of order 64 are divided into twenty-seven families, . The families are denoted by 0, i = 1 2, . . . , 27. 1 Definition 2. 9. Two groups belong to the same ~famil if they are isoclinic. Definition 2. 10. The groups of lowest order in a family.... Then Z (G) = C 0( C and G/Z (G) = 16 I'2 al. As in the previous example G/2 (G) consists of the following cosets: g ' = (1, 2, 3, 4) g ' = (5678) 16' = (61, 62, 63, 64) 15 The following table was calculated using a representative ele- ment from...

Hansen, Roger Finn

1967-01-01T23:59:59.000Z

318

Hunton Group core workshop and field trip  

SciTech Connect (OSTI)

The Late Ordovician-Silurian-Devonian Hunton Group is a moderately thick sequence of shallow-marine carbonates deposited on the south edge of the North American craton. This rock unit is a major target for petroleum exploration and reservoir development in the southern Midcontinent. The workshop described here was held to display cores, outcrop samples, and other reservoir-characterization studies of the Hunton Group and equivalent strata throughout the region. A field trip was organized to complement the workshop by allowing examination of excellent outcrops of the Hunton Group of the Arbuckle Mountains.

Johnson, K.S. [ed.

1993-12-31T23:59:59.000Z

319

Group action in topos quantum physics  

SciTech Connect (OSTI)

Topos theory has been suggested first by Isham and Butterfield, and then by Isham and Doering, as an alternative mathematical structure within which to formulate physical theories. In particular, it has been used to reformulate standard quantum mechanics in such a way that a novel type of logic is used to represent propositions. In this paper, we extend this formulation to include the notion of a group and group transformation in such a way that we overcome the problem of twisted presheaves. In order to implement this we need to change the type of topos involved, so as to render the notion of continuity of the group action meaningful.

Flori, C. [Perimeter Institute for Theoretical Physics, 31 Caroline Street N, Waterloo, Ontario N2L 2Y5 (Canada)] [Perimeter Institute for Theoretical Physics, 31 Caroline Street N, Waterloo, Ontario N2L 2Y5 (Canada)

2013-03-15T23:59:59.000Z

320

Spinning Fluids: A Group Theoretical Approach  

E-Print Network [OSTI]

We extend the Lagrangian formulation of relativistic non-abelian fluids in group theory language. We propose a Mathisson-Papapetrou equation for spinning fluids in terms of the reduction limit of de Sitter group. The equation we find correctly boils down to the one for non-spinning fluids. We study the application of our results for an FRW cosmological background for fluids with no vorticity and for dusts in the vicinity of a Kerr black hole. We also explore two alternative approaches based on a group theoretical formulation of particles dynamics.

Dario Capasso; Debajyoti Sarkar

2014-04-07T23:59:59.000Z

Note: This page contains sample records for the topic "groups 2-digit sic" 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

D-branes on group manifolds and fusion rings  

E-Print Network [OSTI]

In this paper we compute the charge group for symmetry preserving D-branes on group manifolds for all simple, simply-connected, connected compact Lie groups G.

P. Bouwknegt; P. Dawson; D. Ridout

2002-10-31T23:59:59.000Z

322

Energy Lawyers and Contracting Officers Group Special Session...  

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

Group Special Session Energy Lawyers and Contracting Officers Group Special Session Presentation covers the Energy Lawyers and Contracting Officers Group Special Session at the...

323

Organizing Your 4-H Project Group  

E-Print Network [OSTI]

Project work allows 4-H volunteer leaders to teach and young people to learn new skills and gain new knowledge. Each project group should be organized in cooperation with the club's organizational leader. Use this guide when planning your first...

Howard, Jeff W.

2005-05-10T23:59:59.000Z

324

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS  

E-Print Network [OSTI]

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS University of Tokyo Noda, Chiba 278-8510, Japan Abstract. Green functions called symbols. Generali* *zing this, we define Green functions associated to complex reflection

Shoj, Toshiaki

325

MACDONALD FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS  

E-Print Network [OSTI]

MACDONALD FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS. A generalization of Macdonald o* *perators is also constructed, and we characterize such functions by making use of * *Macdonald operators, assuming a certain conjecture

Shoj, Toshiaki

326

Group Care of Children and Adolescents  

E-Print Network [OSTI]

This literature review sought the answers to three questions regarding group care for children and adolescents: Question 1: Is there empirical literature that supports the "best practices" idea that family foster care ...

Barfield, Sharon T.; Petr, Chris

2002-02-01T23:59:59.000Z

327

Safety Monitor Joint Working Group (JWG) Tour  

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

the Joint Working Group of the U.S.-Japan Coordinating Committee of Fusion Energy on Safety in Inter-Institutional Collaborations (U.S.-Japan Safety Monitoring Program) Meeting...

328

Energy Management Working Group: Accelerating Energy Management  

E-Print Network [OSTI]

Countries participating in the Global Superior Energy Performance (GSEP) Energy Management Working Group (EMWG) are leveraging their resources and taking collective action to strengthen national and international efforts to facilitate the adoption...

Scheihing, P.

2014-01-01T23:59:59.000Z

329

Enforcement Letter, Parsons Infrastructure & Technology Group...  

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

13, 2009 Issued to Parsons Infrastructure & Technology Group, Inc., related to a Form Wood Timber Fire at the Salt Waste Processing Facility at the Savannah River Site On July...

330

Inserting Group Variables into Fluid Mechanics  

E-Print Network [OSTI]

A fluid, like a quark-gluon plasma, may possess degrees of freedom indexed by a group variable, which retains its identity even in the fluid/continuum description. Conventional Eulerian fluid mechanics is extended to encompass this possibility.

R. Jackiw

2004-10-28T23:59:59.000Z

331

New Albany shale group of Illinois  

SciTech Connect (OSTI)

The Illinois basin's New Albany shale group consists of nine formations, with the brownish-black laminated shales being the predominant lithology in southeastern Illinois and nearby parts of Kentucky where the group reaches its maximum thickness of 460 ft. A second depositional center lies in west-central Illinois and southeastern Iowa, where the group is about 300 ft thick and the predominant lithology is bioturbated olive-gray to greenish-gray shale. A northeast-trending area of thin strata (mostly interfingering gray and black shales) separates these two depocenters. The distribution and types of lithofacies in the New Albany suggest that the shale was deposited across a shelf-slope-basin transition in a marine, stratified anoxic basin. The record of depositional events in the shale group could serve as a baseline for interpreting the history of tectonically more complex sequences such as the Appalachian basin's Devonian shales.

Cluff, R.M.; Reinbold, M.L.; Lineback, J.A.

1981-01-01T23:59:59.000Z

332

QUASI-REPRESENTATIONS OF SURFACE GROUPS 1 ...  

E-Print Network [OSTI]

C?-algebra. 1. Introduction. Let G be a discrete countable group. In [3,4] the ... conjecture, a unital finite dimensional representation ?: C?(G) ? Mr(C) induces ...

2012-07-13T23:59:59.000Z

333

W Boson Mass Working Group Report  

SciTech Connect (OSTI)

The W boson mass working group discussed the current status of the W boson mass measurement and the prospects for improving on LEP and Tevatron measurements at the LHC.

Kilgore, W.; Kilgore, W.

2010-06-14T23:59:59.000Z

334

Department of Physics High Energy Physics Group  

E-Print Network [OSTI]

Department of Physics High Energy Physics Group Electrical Engineer (Job ref: 0004) The High Energy and experience. A job description and an application form can be obtained from http

335

Utility Variable Generation Integration Group Fall Technical...  

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

Technical Workshop Utility Variable Generation Integration Group Fall Technical Workshop October 15, 2014 9:00AM CDT to October 17, 2014 3:00PM CDT The Utility Variable Generation...

336

Bradbury Science Museum -Scavenger Hunt Group Names-___________________________  

E-Print Network [OSTI]

Bradbury Science Museum - Scavenger Hunt Group Names- ___________________________ Try to find all of these things somewhere in the museum. a satellite: What does a satellite do? Soma Cube: How many small cubes

337

Extreme inequalities for infinite group problems  

E-Print Network [OSTI]

Apr 3, 2006 ... In this paper we derive new properties of extreme inequalities for infinite group ... (f,f(r)) is called extreme if it cannot be written as a convex ...

2006-04-03T23:59:59.000Z

338

Environmental Research Group 2014 Fall Seminar Series  

E-Print Network [OSTI]

Environmental Research Group 2014 Fall Seminar Series October 24, 2014 Gregg 320, 12:00 ­ 1 of five hours, the city of Boston would have sustained even more damage from Hurricane Sandy than New York

339

RISK ASSESSMENT TECHNICAL EXPERT WORKING GROUP  

Broader source: Energy.gov [DOE]

The Risk Assessment Technical Expert Working Group (RWG) is established to assist the Department of Energy (DOE) with the appropriate and effective use of quantitative risk assessment in nuclear...

340

Splitting automorphisms of free Burnside groups  

SciTech Connect (OSTI)

It is proved that, if the order of a splitting automorphism of odd period n{>=}1003 of a free Burnside group B(m,n) is a prime, then the automorphism is inner. This implies, for every prime n{>=}1009, an affirmative answer to the question on the coincidence of the splitting automorphisms of period n of the group B(m,n) with the inner automorphisms (this question was posed in the 'Kourovka Notebook' in 1990). Bibliography: 17 titles.

Atabekyan, Varuzhan S [Yerevan State University, Yerevan (Armenia)] [Yerevan State University, Yerevan (Armenia)

2013-02-28T23:59:59.000Z

Note: This page contains sample records for the topic "groups 2-digit sic" 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

1 Finite Groups 1.1 Generalities  

E-Print Network [OSTI]

1 Finite Groups 1.1 Generalities Let V be a vector space over C , and let GL(V ) denote the group that (#26;; V ) is indecomposable is there is no expression V = W 1 #8;W 2 such that #26;(g)(W i ) #18; W i (#26; #3; ; V #3; ) de#12;ned as #26; #3; (v #3; )(v) = v #3; (#26;(g 1 )(v)). It will be convenient

Sohoni, Milind

342

Hamilton's Turns for the Lorentz Group  

E-Print Network [OSTI]

Hamilton in the course of his studies on quaternions came up with an elegant geometric picture for the group SU(2). In this picture the group elements are represented by ``turns'', which are equivalence classes of directed great circle arcs on the unit sphere $S^2$, in such a manner that the rule for composition of group elements takes the form of the familiar parallelogram law for the Euclidean translation group. It is only recently that this construction has been generalized to the simplest noncompact group $SU(1,1) = Sp(2, R) = SL(2,R)$, the double cover of SO(2,1). The present work develops a theory of turns for $SL(2,C)$, the double and universal cover of SO(3,1) and $SO(3,C)$, rendering a geometric representation in the spirit of Hamilton available for all low dimensional semisimple Lie groups of interest in physics. The geometric construction is illustrated through application to polar decomposition, and to the composition of Lorentz boosts and the resulting Wigner or Thomas rotation.

R. Simon; S. Chaturvedi; V. Srinivasan; N. Mukunda

2006-01-10T23:59:59.000Z

343

A market-power based model of business groups  

E-Print Network [OSTI]

complicated. In our model, business groups not only sellof Indian groups. 3. A Model of Business Groups We willa market-power based model of business groups. This We

Feenstra, Robert C; Huang, D S; Hamilton, G G

2003-01-01T23:59:59.000Z

344

Good-Bye, SIC - Hello, NAICS  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia,(Million Barrels) Crude Oil Reserves in Nonproducing Reservoirs U.S.WyomingExpansion 5Wellhead99.6Year Jan6 441

345

EI Summary of All Manufacturing SIC  

Gasoline and Diesel Fuel Update (EIA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines About U.S.30Natural Gas Glossary529 633 622 56623 4623and2,81920,523 21,5947,603 4,109All

346

Sandia National Laboratories: SiC  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErikGroundbreaking Work onClimateSemiconductorShaheen-Portman BillSiC Sandia,

347

Blackout 2003: Electric System Working Group Technical Conference...  

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

Electric System Working Group Technical Conference - Comments and Recommendations Blackout 2003: Electric System Working Group Technical Conference - Comments and Recommendations...

348

Federal Utility Partnership Working Group Overview (FUPWG) (Fact Sheet)  

SciTech Connect (OSTI)

Fact sheet overview of the Federal Utility Partnership Working Group (FUPWG), including group objectives, activities, and services.

Not Available

2009-07-01T23:59:59.000Z

349

Spent Fuel Working Group Report. Volume 1  

SciTech Connect (OSTI)

The Department of Energy is storing large amounts of spent nuclear fuel and other reactor irradiated nuclear materials (herein referred to as RINM). In the past, the Department reprocessed RINM to recover plutonium, tritium, and other isotopes. However, the Department has ceased or is phasing out reprocessing operations. As a consequence, Department facilities designed, constructed, and operated to store RINM for relatively short periods of time now store RINM, pending decisions on the disposition of these materials. The extended use of the facilities, combined with their known degradation and that of their stored materials, has led to uncertainties about safety. To ensure that extended storage is safe (i.e., that protection exists for workers, the public, and the environment), the conditions of these storage facilities had to be assessed. The compelling need for such an assessment led to the Secretary`s initiative on spent fuel, which is the subject of this report. This report comprises three volumes: Volume I; Summary Results of the Spent Fuel Working Group Evaluation; Volume II, Working Group Assessment Team Reports and Protocol; Volume III; Operating Contractor Site Team Reports. This volume presents the overall results of the Working Group`s Evaluation. The group assessed 66 facilities spread across 11 sites. It identified: (1) facilities that should be considered for priority attention. (2) programmatic issues to be considered in decision making about interim storage plans and (3) specific vulnerabilities for some of these facilities.

O`Toole, T.

1993-11-01T23:59:59.000Z

350

Planning a site investigation using analogous groups  

SciTech Connect (OSTI)

A limited field investigation (LFI) has been designed for the 200-UP-2 Operable Unit within the 200 Areas of the US Department of Energy (DOE) Hanford Site in Washington state using the concept of analogous groups. The LFI is part of a RCRA facility investigation (RFI) corrective measures study (CMS) being conducted in this operable unit. The concept emphasizes that characterization activities can be reduced by identifying select sites (analogous sites) for characterization that represents a group of sites (analogous groups). This concept is particularly applicable to operable units that contain several waste management units that are similar in design, disposal history, and geology. Application of this concept reduced the number of waste management units initially undergoing characterization by more than two-thirds. The work plan is presently in the approval cycle with the field characterization phase expected to begin August 1993.

Pak, P.M. [USDOE Richland Operations Office, WA (United States); Galgoul, M.J.; Wittreich, C.D. [Westinghouse Hanford Co., Richland, WA (United States)

1993-09-01T23:59:59.000Z

351

On the internet grouping for reliable multicasting  

E-Print Network [OSTI]

Experiment to measure the delay between Cat6 and Praline Experiment to measure the delay between Cat6 and Pecan . Experiment to measure the delay between Cat6 and Tam2000 Experiment to measure the delay between Cat6 and Sparc46 . Experiment to measure... the delay between Cat6 and Dasher 40 41 41 42 42 44 FIG bJRE Page 20 Experiment to measure the delay between Cat6 ancl Sparc48 Vxperiment to measure the delay between Cat6 and Sparc49 45 21 The group after applying our grouping algorithm...

Ghanem, Mohamed M.

1996-01-01T23:59:59.000Z

352

Dual Superconductivity in G2 group  

E-Print Network [OSTI]

We investigate the dual superconductivity mechanism in the exceptional group $G_2$. This is a centerless group (no 't Hooft flux vortices are allowed) and we check for the presence of a magnetic monopole condensate in the confined phase by measuring on the lattice a disorder parameter related to the vacuum expectation value of an operator carrying magnetic charge. The behaviour of the disorder parameter is consistent with the dual superconductor picture. A first step of an analysis on the thermodynamical properties of the theory is conducted by mean of this operator.

G. Cossu; M. D'Elia; A. Di Giacomo; B. Lucini; C. Pica

2006-09-28T23:59:59.000Z

353

Fermilab | Employee Advisory Group | Questions & Answers  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibility ofSmall15.000 Rev.Group Members Sabina Aponte,Group

354

Information Geometry and the Renormalization Group  

E-Print Network [OSTI]

Information theoretic geometry near critical points in classical and quantum systems is well understood for exactly solvable systems. Here we show that real space renormalization group equations can be used to construct the information metric and its associated quantities near criticality, even for systems that cannot be exactly solved. We study this metric in various cases and establish its scaling properties in several generic examples. Scaling relations on the parameter manifold involving scalar quantities are studied, and scaling exponents are identified. The meaning of the scalar curvature and the invariant geodesic distance in information geometry is established and substantiated from a renormalization group perspective.

Reevu Maity; Subhash Mahapatra; Tapobrata Sarkar

2015-03-13T23:59:59.000Z

355

Solar Trailer Group EGDSN 297 D  

E-Print Network [OSTI]

Solar Trailer Group EGDSN 297 D Project Recap The objective of the Solar Trailer team was to design and implement a solar PV system for the ToolMaster Trailer HAZ-16 that is used by the Center for Sustainability was constructed. Finally in an all night effort to complete the project the racking and solar panels were

Demirel, Melik C.

356

DYNAMIC INTERACTION FACTORS FOR FLOATING PILE GROUPS  

E-Print Network [OSTI]

-numerical formulation for two ideal- ized soil profiles (a homogeneous half-space and a half-space with modulus pro interaction factors for static deformation analysis of pile groups. INTRODUCTION Under static working loads) the sharing among individual piles of the load applied at the pile cap is generally uneven, with the corner

Entekhabi, Dara

357

Group theory of monopoles Laurel S. H.  

E-Print Network [OSTI]

Z (1) q: electric charge g: magnetic charge Existence of magnetic monopoles would imply charge group is H = rotations about the axis = SO(2) = U(1) Generators of G are Ta for a = 1, 2, 3. Generator of H is aTa/v Associate the U(1) symmetry with electromagnetism. Electric charge is then Q = e v a

California at Santa Cruz, University of

358

ELECTRONICS 2007 by Taylor & Francis Group, LLC  

E-Print Network [OSTI]

Parkway NW, Suite 300 Boca Raton, FL 33487-2742 © 2007 by Taylor & Francis Group, LLC CRC PressEdwardLyshevski was born in Kiev, Ukraine. He received his M.S. (1980) and Ph.D. (1987) degrees from Kie

359

NEC Corporation Volkswagen Group of America  

E-Print Network [OSTI]

Dentsu-Aegis Network Ltd. Digital Garage Hisense Co. Ltd. Jaguar Land Rover LG Electronics, Inc Alexander W. Dreyfoos, Jr. Informatix, Inc. The LEGO Group Dorothy Lemelson LG Electronics, Inc. Master. Panasonic Corporation RECRUIT Samsung Electronics Co., Ltd. SingTel TCL Multimedia Toshiba Corporation

360

1Nanomaterials for Energy Group Byungwoo Park  

E-Print Network [OSTI]

(2011). Advantages of Quantum-Dot-Sensitized Solar Cells #12;7Nanomaterials for Energy Group://bp.snu.ac.kr Cutting-Edge Nanomaterials for Energy: Solar Cell Nanophosphor Li+ Battery #12;2Nanomaterials for Energy for Energy Fuel Cell Li+ Battery Solar Panel Portable Devices Solar Cell White LED PDP Phosphor #12

Cho, Jaephil

Note: This page contains sample records for the topic "groups 2-digit sic" 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

Contractions of Lie algebras and algebraic groups  

E-Print Network [OSTI]

Degenerations, contractions and deformations of various algebraic structures play an important role in mathematics and physics. There are many different definitions and special cases of these notions. We try to give a general definition which unifies these notions and shows the connections among them. Here we focus on contractions of Lie algebras and algebraic groups.

Dietrich Burde

2007-03-23T23:59:59.000Z

362

Project/Research Opportunities Integrated Optoelectronics Group  

E-Print Network [OSTI]

Project/Research Opportunities Integrated Optoelectronics Group Department of Electrical-effective functional photonic/optoelectronic devices/circuits are at high demands now-a-days for applications-on-insulator (SOI) substrate has been established to be an attractive platform for a photonic/optoelectronic

Das, Bijoy Krishna

363

PASSION FOR WOOD THE DLH GROUP 2006  

E-Print Network [OSTI]

countries on 5 continents · 19 timber merchant companies in Denmark, 10 of which have do-it-yourself stores Division consists of 19 timber merchant companies in Denmark, just over half of which have an adjacent doPASSION FOR WOOD THE DLH GROUP 2006 #12;54% 21% 25% ONE OF THE WORLD'S MAJOR TIMBER WHOLESALERS

364

Information Security Group IY5512 Computer Security  

E-Print Network [OSTI]

for process that controls interactions between users and resources. · Access control system implements Information Security Group Agenda · Access control basics · ACLs and capabilities · Information flow policies· Information flow policies · Bell-LaPadula Model · Role-Based Access Control · Resources 3 Information Security

Mitchell, Chris

365

ROSAT Observations of Compact Groups of Galaxies  

E-Print Network [OSTI]

A search for X-ray emission from compact groups revealed detection from 8 out of the 12 HCG images extracted from the ROSAT public archive. For two of them the X-ray emission originates from galaxies in the group. On the contrary, three groups show an extended emission clearly caused by hot intracluster gas. A Raymond-Smith hot plasma model provides an excellent fit to the X-ray spectra. The estimated temperatures are distributed in a quite narrow range (from 0.73 to 0.92 keV) and are consistent, within the errors, with 0.9 keV. The luminosity ranging from 0.75 to $5.1\\cdot10^{42}$erg s$^{-1}$. The most relevant result is the low metal abundance surely detected in two of them and likely in a third that characterizes the hot gas cloud responsible for the X-ray emission. The data concerning the remaining 3 detected compact groups are not sufficient to discriminate with certainty between diffuse and/or point-like X-ray emission. However the results of the spectral analysis point to the presence of a hot gas again with low metal abundance.

P. Saracco; P. Ciliegi

1994-12-15T23:59:59.000Z

366

Discriminating Groups of Organisms Richard E. Strauss  

E-Print Network [OSTI]

the multivariate character space, in the presence of correlations among variables. And multivariate analysis function analy- sis or canonical variate analysis), Mahalanobis distance, and multivariate analysis a number of things about them. Can we discriminate the groups based on morphometric traits? If so, how well

Strauss, Richard E.

367

Integrable magnetic geodesic flows on Lie groups  

E-Print Network [OSTI]

Right-invariant geodesic flows on manifolds of Lie groups associated with 2-cocycles of corresponding Lie algebras are discussed. Algebra of integrals of motion for magnetic geodesic flows is considered and necessary and sufficient condition of integrability in quadratures is formulated. Canonic forms for 2-cocycles of all 4-dimensional Lie algebras are given and integrable cases among them are separated.

Alexey A. Magazev; Igor V. Shirokov; Yuriy Y. Yurevich

2011-11-03T23:59:59.000Z

368

Information Visualization Graduate Project (Group Project)  

E-Print Network [OSTI]

Information Visualization Fall 2011 Graduate Project (Group Project) (100 points total) Handed out:59PM Research Article due by online submission on Sunday, December 11, 2011, 11:59PM Project Demo due last week of classes The idea of the project is to take the knowledge and background that you

Rusu, Adrian

369

DOE Hydrogen Pipeline Working Group Workshop  

E-Print Network [OSTI]

DOE Hydrogen Pipeline Working Group Workshop August 31, 2005 Augusta, Georgia #12;Hydrogen Pipeline Experience Presented By: LeRoy H. Remp Lead Project Manager Pipeline Projects #12;ppt00 3 Hydrogen Pipeline Pipeline Photos #12;ppt00 8 Pipeline Photos #12;ppt00 9 Overview of North American Air Products Hydrogen P

370

Forrest M. Hoffman Computational Earth Sciences Group  

E-Print Network [OSTI]

Forrest M. Hoffman Computational Earth Sciences Group Oak Ridge National Laboratory (ORNL) Oak Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee (November 1993­present). Scientific Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee (July 1992­ November 1993

Hoffman, Forrest M.

371

Sudoplatov S. V. ON GENERIC GROUP TRIGONOMETRIES  

E-Print Network [OSTI]

­447. 6. Sudoplatov S. V. On type identifications in trigonometrical theories // Materials of InternatSudoplatov S. V. ON GENERIC GROUP TRIGONOMETRIES The positive solution of known problem projective closure (the construction is defined in [5, theorem 8]); 2) an amalgamation (type identification

Sudoplatov, Sergey Vladimirovich

372

January 11, 2007 Chicago ATLAS Group  

E-Print Network [OSTI]

for sLHC US ATLAS Tier 2 / 3 computing facility Joint with Indiana University Remote monitoringJ. Pilcher January 11, 2007 Chicago ATLAS Group #12;January 11, 2008 J. Pilcher2 Introduction Very exciting time for the LHC program and ATLAS First collisions later this year ATLAS will be ready Chicago

373

Statistical Sciences Group, Los Alamos National Laboratory,  

E-Print Network [OSTI]

Luke Bornn CCS-6, Statistical Sciences Group, Los Alamos National Laboratory, MS F600, Los Alamos, NM 87545 Charles R. Farrar1 e-mail: farrar@lanl.gov Gyuhae Park Kevin Farinholt The Engineering Institute, Los Alamos National Laboratory, MS T006, Los Alamos, NM 87545 Structural Health Monitoring

Wolfe, Patrick J.

374

Military Munitions Waste Working Group report  

SciTech Connect (OSTI)

This report presents the findings of the Military Munitions Waste Working Group in its effort to achieve the goals directed under the Federal Advisory Committee to Develop On-Site Innovative Technologies (DOIT Committee) for environmental restoration and waste management. The Military Munitions Waste Working Group identified the following seven areas of concern associated with the ordnance (energetics) waste stream: unexploded ordnance; stockpiled; disposed -- at known locations, i.e., disposal pits; discharged -- impact areas, unknown disposal sites; contaminated media; chemical sureties/weapons; biological weapons; munitions production; depleted uranium; and rocket motor and fuel disposal (open burn/open detonation). Because of time constraints, the Military Munitions Waste Working Group has focused on unexploded ordnance and contaminated media with the understanding that remaining waste streams will be considered as time permits. Contents of this report are as follows: executive summary; introduction; Military Munitions Waste Working Group charter; description of priority waste stream problems; shortcomings of existing approaches, processes and technologies; innovative approaches, processes and technologies, work force planning, training, and education issues relative to technology development and cleanup; criteria used to identify and screen potential demonstration projects; list of potential candidate demonstration projects for the DOIT committee decision/recommendation and appendices.

Not Available

1993-11-30T23:59:59.000Z

375

Optimal Pair Matching With Two Control Groups  

E-Print Network [OSTI]

Professor, Center for Statistical Sciences, Brown University, Providence, RI 02912 (E-mail: bolu@stat.brown covariate (Campbell 1969; Rosenbaum 1987, 2002a, sec. 8; Meyer 1995; Shadish, Cook, and Campbell 2002). Campbell argued that one should select two control groups to systematically vary an unobserved covariate

Rosenbaum, Paul R.

376

NIFES Consulting Group COMMERCIAL IN CONFIDENCE  

E-Print Network [OSTI]

An energy audit has been carried out at Hollings Campus ­ Manchester Metropolitan University. This report: UKE1520 MMU Hollings Energy Audit/SE/Rel 1 Date: December 2008 NIFES Consulting Group, NIFES House.3 Brief Description of the Site 6 1.4 Acknowledgement 7 2.0 ENERGY AUDIT 8 2.1 Site Configuration 8 2

377

Hydrogen Storage Workshop Advanced Concepts Working Group  

E-Print Network [OSTI]

/ Current Status · Aerogels are the scaffold; template with organic functional groups; physisorption, acid benign ­ Inexpensive #12;Self-Assembled Nanocomposites ­ R&D Needs 1. Studying silica aerogels 2. Modifying aerogels 3. Theoretical Modeling - various chemical structures / materials 4. Functionalization

378

PHYSICS PROBLEM SOLVING COOPERATIVE LEARNING GROUPS  

E-Print Network [OSTI]

PHYSICS PROBLEM SOLVING IN COOPERATIVE LEARNING GROUPS A THESIS SUBMITTED TO THE FACULTY OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY December, 1995 #12;PHYSICS PROBLEM SOLVING IN COOPERATIVE Planck Institute, graciously agreed to my videotaping of his Physics 1041 and 1042 students. When I

Minnesota, University of

379

Radiation Protection Group Annual Report 2003  

E-Print Network [OSTI]

The RP Annual Report summarises the activities carried out by CERN’s Radiation Protection Group in the year 2003. It includes contribution from the EN section of the TIS/IE Group on environmental monitoring. Chapter 1 reports on the measurements and estimations of the impact on the environment and public exposure due to the Organisation’s activities. Chapter 2 provides the results of the monitoring of CERN’s staff, users and contractors to occupational exposure. Chapter 3 deals with operational radiation protection around the accelerators and in the experimental areas. Chapter 4 reports on RP design studies for the LHC and CNGS projects. Chapter 5 addresses the various services provided by the RP Group to other Groups and Divisions at CERN, which include managing radioactive waste, high-level dosimetry, lending radioactive test sources and shipping radioactive materials. Chapter 6 describes activities other than the routine and service tasks, i.e. development work in the field of instrumentation and res...

Silari, M

2004-01-01T23:59:59.000Z

380

Quasi Multiplication and K-groups  

E-Print Network [OSTI]

We give a negative answer to the question raised by Mart Abel about whether his proposed definition of K0 and K1 groups in terms of quasi multiplication is indeed equivalent to the established ones in algebraic K-theory....

Lee, Tsiu-Kwen; Sheu, Albert Jeu-Liang

2013-02-28T23:59:59.000Z

Note: This page contains sample records for the topic "groups 2-digit sic" 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

ABB Group April 14, 2009 | Slide 1  

E-Print Network [OSTI]

behaviour of light #12;© ABB Group April 14, 2009 | Slide 5 Early influences ­ science fiction books Frank science book I became interested in energy released by nuclear fusion reactions Nuclear fusion takes place emission No meltdown No radioactive waste Masters thesis supervisor: Klaus-Dieter Zastrow (Germany) #12

Basse, Nils Plesner

382

Frank Breust, Governmental Affairs,BMW Group  

E-Print Network [OSTI]

Frank Breust, Governmental Affairs,BMW Group 11/07/2013 THE FUTURE OF ELECTRIC MOBILITY­ HOWTO MAKE A STRATEGY INVOLVING BOTH EVOLUTION AND REVOLUTION. #12;MINI E AND BMW ActiveE SERVE AS KEY LEARNING PROJECTS FOR BMW i. MINI E (2009-2012) BMW ActiveE (2011-2014) 16 million kilometers ~600vehicles 18 million

California at Davis, University of

383

MAGNIFICATION BY GALAXY GROUP DARK MATTER HALOS  

SciTech Connect (OSTI)

We report on the detection of gravitational lensing magnification by a population of galaxy groups, at a significance level of 4.9{sigma}. Using X-ray-selected groups in the COSMOS 1.64 deg{sup 2} field, and high-redshift Lyman break galaxies as sources, we measure a lensing-induced angular cross-correlation between the samples. After satisfying consistency checks that demonstrate we have indeed detected a magnification signal, and are not suffering from contamination by physical overlap of samples, we proceed to implement an optimally weighted cross-correlation function to further boost the signal to noise of the measurement. Interpreting this optimally weighted measurement allows us to study properties of the lensing groups. We model the full distribution of group masses using a composite-halo approach, considering both the singular isothermal sphere and Navarro-Frenk-White profiles, and find our best-fit values to be consistent with those recovered using the weak-lensing shear technique. We argue that future weak-lensing studies will need to incorporate magnification along with shear, both to reduce residual systematics and to make full use of all available source information, in an effort to maximize scientific yield of the observations.

Ford, Jes; Hildebrandt, Hendrik; Van Waerbeke, Ludovic [Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1 (Canada); Leauthaud, Alexie; Tanaka, Masayuki [Institute for the Physics and Mathematics of the Universe, University of Tokyo, Chiba 277-8582 (Japan); Capak, Peter [NASA Spitzer Science Center, California Institute of Technology, 220-6 Caltech, 1200 East California Boulevard, Pasadena, CA 91125 (United States); Finoguenov, Alexis [Max-Planck-Institut fuer Extraterrestrische Physik, Giessenbachstrasse 1, D-85748 Garching (Germany); George, Matthew R. [Department of Astronomy, University of California, Berkeley, CA 94720 (United States); Rhodes, Jason [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States)

2012-08-01T23:59:59.000Z

384

UCIME Group Meeting March 9, 2001  

E-Print Network [OSTI]

a briefing on the coupled modeling system to a joint meeting of the Cities of Carpinteria, Montecito and Santa Barbara (7:00pm, a public meeting at Carpinteria City Hall) and finally for two different groups, specifically nutrient loading on streams and to the ocean. The study area will be the Carpinteria Creek

Clarke, Keith

385

UCIME Group Meeting April 13, 2001  

E-Print Network [OSTI]

for public review. § He continues to build data layers for the Carpinteria Creek Watershed, which is the test on Carpinteria Creek. § Earlier today, Tim organized a Watershed Support Group (www.bren.ucsb.edu/wsg) Brown Bag or no growth what so ever. § He continues to sample creeks in the Carpinteria area as well as work

Clarke, Keith

386

Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl  

E-Print Network [OSTI]

Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl 865-946-1475 865-946-1236 Center for Transportation Analysis News Oak Ridge National to members of the Kentucky Transportation Cabinet and the Kentucky Transportation Center. The purpose

387

Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl  

E-Print Network [OSTI]

Transportation Planning & Decision Science Group Transportation Systems Research Group Diane Davidson Keith Kahl 865-946-1475 865-946-1236 Center for Transportation Analysis News Oak Ridge National, during the Chairman's Luncheon at the 92nd Annual Transportation Research Board (TRB) Meeting

388

Mentorship Groups Groups are sorted by approximate area. Mentors are in bold, and apprentice students are  

E-Print Network [OSTI]

Mentorship Groups Groups are sorted by approximate area. Mentors are in bold, and apprentice-ok Choi (CSP, Undergraduate Mentor) · Mitch Hill (Apprentice, 5 weeks, Undergraduate Mentee) · Bradly Stadie (YSP) · Peter Hansen (Intermediate) · Ben Riffer-Reinert (Apprentice, 8 weeks) Analysis: Shawn

May, J. Peter

389

AN H I SURVEY OF SIX LOCAL GROUP ANALOGS. II. H I PROPERTIES OF GROUP GALAXIES  

SciTech Connect (OSTI)

We have conducted an H I 21 cm emission-line survey of six loose groups of galaxies chosen to be analogs to the Local Group. The survey was conducted using the Parkes multibeam instrument and the Australia Telescope Compact Array (ATCA) over a {approx}1 Mpc{sup 2} area and covering the full depth of each group, with an M{sub HI} sensitivity of {approx}7 Multiplication-Sign 10{sup 5} M{sub Sun }. Our survey detected 110 sources, 61 of which are associated with the six groups. All of these sources were confirmed with ATCA observations or were previously cataloged by HIPASS. The sources all have optical counterparts and properties consistent with dwarf irregular or late-type spiral galaxies. We present here the H I properties of the groups and their galaxies. We derive an H I mass function (HIMF) for the groups that is consistent with being flatter than the equivalent field HIMF. We also derive a circular velocity distribution function, tracing the luminous dark matter halos in the groups, that is consistent with those of the Local Group and HIPASS galaxies, both of which are shallower than that of clusters or predictions from cold dark matter models of galaxy formation.

Pisano, D. J. [Department of Physics, West Virginia University, P.O. Box 6315, Morgantown, WV 26506 (United States); Barnes, David G.; Kilborn, Virginia A. [Centre for Astrophysics and Supercomputing, Swinburne University, Hawthorn, Victoria 3122 (Australia); Staveley-Smith, Lister [International Centre for Radio Astronomy Research, M468, University of Western Australia, Crawley, WA 6009 (Australia); Gibson, Brad K. [Jeremiah Horrocks Institute, University of Central Lancashire, Preston PR1 2HE (United Kingdom); Freeman, Ken C., E-mail: djpisano@mail.wvu.edu, E-mail: David.G.Barnes@gmail.com, E-mail: vkilborn@astro.swin.edu.au, E-mail: Lister.Staveley-Smith@icrar.org, E-mail: brad.k.gibson@gmail.com, E-mail: kcf@mso.anu.edu.au [RSAA, Mount Stromlo Observatory, Cotter Road, Weston, ACT 2611 (Australia)

2011-12-01T23:59:59.000Z

390

Current and future industrial energy service characterizations. Volume II. Energy data on the US manufacturing subsector  

SciTech Connect (OSTI)

In order to characterize industrial energy service, current energy demand, its end uses, and cost of typical energy applications and resultant services in the industrial sector were examined and a projection of state industrial energy demands and prices to 1990 was developed. Volume II presents in Section 2 data on the US manufacturing subsector energy demand, intensity, growth rates, and cost for 1971, 1974, and 1976. These energy data are disaggregated not only by fuel type but also by user classifications, including the 2-digit SIC industry groups, 3-digit subgroups, and 4-digit SIC individual industries. These data characterize typical energy applications and the resultant services in this subsector. The quantities of fuel and electric energy purchased by the US manufacturing subsector were converted to British thermal units and reported in billions of Btu. The conversion factors are presented in Table 4-1 of Volume I. To facilitate the descriptive analysis, all energy cost and intensity data were expressed in constant 1976 dollars. The specific US industrial energy service characteristics developed and used in the descriptive analysis are presented in Volume I. Section 3 presents the computer program used to produce the tabulated data.

Krawiec, F.; Thomas, T.; Jackson, F.; Limaye, D.R.; Isser, S.; Karnofsky, K.; Davis, T.D.

1980-10-01T23:59:59.000Z

391

Chemical vapor deposition of group IIIB metals  

DOE Patents [OSTI]

Coatings of Group IIIB metals and compounds thereof are formed by chemical vapor deposition, in which a heat decomposable organometallic compound of the formula given in the patent where M is a Group IIIB metal, such as lanthanum or yttrium and R is a lower alkyl or alkenyl radical containing from 2 to about 6 carbon atoms, with a heated substrate which is above the decomposition temperature of the organometallic compound. The pure metal is obtained when the compound of the formula 1 is the sole heat decomposable compound present and deposition is carried out under nonoxidizing conditions. Intermetallic compounds such as lanthanum telluride can be deposited from a lanthanum compound of formula 1 and a heat decomposable tellurium compound under nonoxidizing conditions.

Erbil, A.

1989-11-21T23:59:59.000Z

392

Summary of the Physics Opportunities Working Group  

SciTech Connect (OSTI)

The Physics Opportunities Working Group was convened with the rather general mandate to explore physic opportunities that may arise as new accelerator technologies and facilities come into play. Five topics were considered during the workshop: QED at critical field strength, novel positron sources, crystal accelerators, suppression of beamstrahlung, and muon colliders. Of particular interest was the sense that a high energy muon collider might be technically feasible and certainly deserves serious study.

Chen, Pisin [Stanford Linear Accelerator Center, Menlo Park, CA (United States); McDonald, K.T. [Princeton Univ., NJ (United States). Joseph Henry Labs.

1992-12-01T23:59:59.000Z

393

Group 3: Humidity, Temperature, and Voltage  

Broader source: Energy.gov [DOE]

This PowerPoint presentation, focused on humidity, temperature and voltage testing, was originally presented by John Wohlgemuth at the NREL 2013 PV Module Reliability Workshop on Feb. 26-27, 2013 in Denver, CO. It summarizes the activities of a working group chartered to develop accelerated stress tests that can be used as comparative predictors of module life versus stresses associated with humidity, temperature and voltage.

394

Cosmological Constant Problems and Renormalization Group  

E-Print Network [OSTI]

The Cosmological Constant Problem emerges when Quantum Field Theory is applied to the gravitational theory, due to the enormous magnitude of the induced energy of the vacuum. The unique known solution of this problem involves an extremely precise fine-tuning of the vacuum counterpart. We review a few of the existing approaches to this problem based on the account of the quantum (loop) effects and pay special attention to the ones involving the renormalization group.

Ilya L. Shapiro; Joan Sola

2007-01-05T23:59:59.000Z

395

Focus group discussions of daylighting practices  

SciTech Connect (OSTI)

This research was sponsored by the US Department of Energy (DOE) Office of Buildings and Community systems and conducted by Pacific Northwest Laboratory (PNL) as part of an ongoing effort to enhance the commercial use of federally developed technologies. One such technology is the use of daylighting practices in the design of nonresidential buildings. This document is a report of the findings from meetings of focus groups conducted to gain insight into building designers' perceptions and attitudes about daylighting systems.

Roberson, B.F.; Harkreader, S.A.

1988-11-01T23:59:59.000Z

396

NIFES Consulting Group COMMERCIAL IN CONFIDENCE  

E-Print Network [OSTI]

.murphy@nifes.co.uk Ref: UKE1520 Manchester Metropolitan University Energy Audit/SE/PM/ Rel 1 Date: May 2008 #12;NIFES 1.3 Brief Description of the Site 6 1.4 Acknowledgement 7 2.0 ENERGY AUDIT 8 2.1 Site Configuration MANAGEMENT MATRIX #12;3 NIFES Consulting Group EXECUTIVE SUMMARY An energy audit has been carried out

397

Nonlinear Transformation Group of CAR Fermion Algebra  

E-Print Network [OSTI]

Based on our previous work on the recursive fermion system in the Cuntz algebra, it is shown that a nonlinear transformation group of the CAR fermion algebra is induced from a $U(2^p)$ action on the Cuntz algebra ${\\cal O}_{2^p}$ with an arbitrary positive integer $p$. In general, these nonlinear transformations are expressed in terms of finite polynomials in generators. Some Bogoliubov transformations are involved as special cases.

Mitsuo Abe; Katsunori Kawamura

2001-10-01T23:59:59.000Z

398

Computer Networking Group | Stanford Synchrotron Radiation Lightsource  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User Group andCompositional Variation The Computationalof

399

Verdi Energy Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov PtyInformation UCOpen EnergyVelankani Group Jump

400

Macro-Industrial Working Group 2  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia,(Million Barrels) Crude Oil Reserves in Nonproducing Reservoirs Year2 Macro-Industrial Working Group Macroeconomic

Note: This page contains sample records for the topic "groups 2-digit sic" 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

Macro-Industrial Working Group: meeting 1  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia,(Million Barrels) Crude Oil Reserves in Nonproducing Reservoirs Year2 Macro-Industrial Working Group MacroeconomicJuly

402

Macro-Industrial Working Group: meeting 1  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia,(Million Barrels) Crude Oil Reserves in Nonproducing Reservoirs Year2 Macro-Industrial Working Group MacroeconomicJuly4

403

Macro-Industrial Working Group: meeting 1  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia,(Million Barrels) Crude Oil Reserves in Nonproducing Reservoirs Year2 Macro-Industrial Working Group

404

LBNL China Energy Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Powerstories on climateJuno Beach, Florida:KenyonKosciusko CountyGroup Name

405

Conservation Services Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentratingRenewable Solutions LLC Jump to: navigation,AreaHighInformationConservationGroup

406

Microfield Group Inc | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 -Energieprojekte GmbH Jump to:Michigan: Energy ResourcesMicrofield Group Inc Jump

407

Aurantia SA Aurantia Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCT BiomassArnprior,Aurantia SA Aurantia Group Jump to: navigation,

408

Green Power Group Ltd | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio: EnergyGrasslands RenewableGreatwood,GreenFalls,Group Ltd Sector:

409

Exceptional groups, symmetric spaces and applications  

SciTech Connect (OSTI)

In this article we provide a detailed description of a technique to obtain a simple parameterization for different exceptional Lie groups, such as G{sub 2}, F{sub 4} and E{sub 6}, based on their fibration structure. For the compact case, we construct a realization which is a generalization of the Euler angles for SU(2), while for the non compact version of G{sub 2(2)}/SO(4) we compute the Iwasawa decomposition. This allows us to obtain not only an explicit expression for the Haar measure on the group manifold, but also for the cosets G{sub 2}/SO(4), G{sub 2}/SU(3), F{sub 4}/Spin(9), E{sub 6}/F{sub 4} and G{sub 2(2)}/SO(4) that we used to find the concrete realization of the general element of the group. Moreover, as a by-product, in the simplest case of G{sub 2}/SO(4), we have been able to compute an Einstein metric and the vielbein. The relevance of these results in physics is discussed.

Cerchiai, Bianca L.; Cacciatori, Sergio L.

2009-03-31T23:59:59.000Z

410

Galaxy groups in the 2dFGRS: the luminous content of the groups  

E-Print Network [OSTI]

The 2dFGRS Percolation-Inferred Galaxy Group (2PIGG) catalogue of ~29000 objects is used to study the luminous content of galaxy systems of various sizes. Mock galaxy catalogues constructed from cosmological simulations are used to gauge the accuracy with which intrinsic group properties can be recovered. A Schechter function is found to be a reasonable fit to the galaxy luminosity functions in groups of different mass in the real data. The characteristic luminosity L* is larger for more massive groups. However, the mock data show that the shape of the recovered luminosity function is expected to differ from the true shape, and this must be allowed for when interpreting the data. The variation of halo mass-to-light ratio with group size is studied in both these wavebands. A robust trend of increasing M/L with increasing group luminosity is found in the 2PIGG data. From groups with L_bj=10^{10}Lsol to those 100 times more luminous, the typical bj-band M/L increases by a factor of 5, whereas the rf-band M/L grows by a factor of 3.5. These trends agree well with the simulations, which also predict a minimum M/L on a scale corresponding to the Local Group. Our data indicate that if such a minimum exists, then it must occur at L<~10^{10}Lsol, below the range accurately probed by the 2PIGG catalogue. According to the mock data, the bj M/Ls of the largest groups are expected to be approximately 1.1 times the global value. Assuming that this correction applies to the real data yields an estimate of Omega_m=0.26+/-0.03 (statistical).

V. R. Eke; C. S. Frenk; C. M. Baugh; S. Cole; P. Norberg; J. A. Peacock; I. K. Baldry; J. Bland-Hawthorn; T. Bridges; R. Cannon; M. Colless; C. Collins; W. Couch; G. Dalton; R. De Propris; S. P. Driver; G. Efstathiou; R. S. Ellis; K. Glazebrook; C. Jackson; O. Lahav; I. Lewis; S. Lumsden; S. Maddox; D. Madgwick; B. A. Peterson; W. Sutherland; K. Taylor

2004-02-26T23:59:59.000Z

411

Almost Free Abelian Groups We say that an abelian group is is 1-free if every countable subgroup is  

E-Print Network [OSTI]

Almost Free Abelian Groups We say that an abelian group is is 1-free if every countable subgroup is free. We describe the construction of abelian groups of size 1 that are 1-free but not free. Throughout this note all groups are abelian. Throughout we use the basic fact that a subgroup of a free abelian group

Marker, David

412

Guide to Space groups There are only 230 ways (space groups) to describe how identical objects can be  

E-Print Network [OSTI]

Guide to Space groups There are only 230 ways (space groups) to describe how identical objects can but it gets better than that! If your structure contains a chrial center then any space group that has a mirror or an inversion operation can be rejected. Of the 230 space groups only 74 space groups

Meagher, Mary

413

Technology adaptation and boundary management in bona fide virtual groups.  

E-Print Network [OSTI]

In this research project composed of multiple case studies, I focused on how bona fide virtual groups appropriated multiple media to facilitate group boundary construction and boundary management, which are preconditions of group identity formation...

Zhang, Huiyan

2006-04-12T23:59:59.000Z

414

Designing Sustainability at BMW Group: The Designworks/USA Experience  

E-Print Network [OSTI]

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

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

2002-01-01T23:59:59.000Z

415

DOE Transportation Protocols Topic Group Conference Call Summary...  

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

Conference Call Summary May 13, 1999 The Transportation External Coordination Working Group (TECWG) Protocols Topic Group held a conference call on May 13, 1999, to discuss the...

416

Hydrogen Pipeline Working Group Workshop: Code for Hydrogen Pipelines...  

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

Working Group Workshop: Code for Hydrogen Pipelines Hydrogen Pipeline Working Group Workshop: Code for Hydrogen Pipelines Code for Hydrogen Piping and Pipelines. B31 Hydrogen...

417

Hydrgoen Storage Systems Analysis Working Group Meeting Summary...  

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

Analysis Working Group Meeting Summary Report Summary report from the May 17, 2007 Hydrogen Storage Systems Analysis Working Group Meeting ssawgmaysummary.pdf More...

418

attending group sessions: Topics by E-print Network  

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

333 Proceedings of the Fourth PHANTOM Users Group Workshop MIT - DSpace Summary: This Report contains the proceedings of the Fourth Phantom Users Group Workshop contains 17...

419

New Polymer Architectures for Imidazole Solvating groups, Anion...  

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

New Polymer Architectures for Imidazole Solvating groups, Anion Mobility and Flexibility New Polymer Architectures for Imidazole Solvating groups, Anion Mobility and Flexibility...

420

June 1998Program Description Windows and Daylighting Group  

E-Print Network [OSTI]

June 1998Program Description THERM 2.0 Windows and Daylighting Group Building Technologies, and Dariush Arasteh Windows and Daylighting Group Building Technologies Department Environmental Energy

Note: This page contains sample records for the topic "groups 2-digit sic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

State Grid and Shenzhen Energy Group Biomass Engineering Technology...  

Open Energy Info (EERE)

Energy Group Biomass Engineering Technology Research Centre Jump to: navigation, search Name: State Grid and Shenzhen Energy Group Biomass Engineering Technology Research Centre...

422

Infrared Thermography (IRT) Working Group | Department of Energy  

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

Infrared Thermography (IRT) Working Group Infrared Thermography (IRT) Working Group Presented at the PV Module Reliability Workshop, February 26 - 27 2013, Golden, Colorado...

423

Effects of Oxygen-Containing Functional Groups on Supercapacitor...  

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

Oxygen-Containing Functional Groups on Supercapacitor Performance. Effects of Oxygen-Containing Functional Groups on Supercapacitor Performance. Abstract: Molecular dynamics (MD)...

424

Building America Zero Energy Ready Home Case Study: Imery Group...  

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

Imery Group, Proud Green Home, Serenbe GA Building America Zero Energy Ready Home Case Study: Imery Group, Proud Green Home, Serenbe GA Case study describing the first...

425

Methodology for Carbon Accounting of Grouped Mosaic and Landscape...  

Open Energy Info (EERE)

Grouped Mosaic and Landscape-scale REDD Projects Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Methodology for Carbon Accounting of Grouped Mosaic and Landscape-scale...

426

China Solar Energy Ltd Tianpu Xianxing Group aka Beijing Universal...  

Open Energy Info (EERE)

China Solar Energy Ltd Tianpu Xianxing Group aka Beijing Universal Antecedence Jump to: navigation, search Name: China Solar Energy Ltd (Tianpu Xianxing Group, aka Beijing...

427

UNICOR Renewable Energy Group Solar Program and Service Offerings...  

Office of Environmental Management (EM)

UNICOR Renewable Energy Group Solar Program and Service Offerings UNICOR Renewable Energy Group Solar Program and Service Offerings Presentation-for the Federal Utility Partnership...

428

Energy Systems Group ESCO Qualification Sheet | Department of...  

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

Energy Systems Group ESCO Qualification Sheet Energy Systems Group ESCO Qualification Sheet Document outlines the energy service company (ESCO) qualifications for Energy Systems...

429

The Global Health Group 50 Beale Street, Suite 1200  

E-Print Network [OSTI]

The Global Health Group 50 Beale Street, Suite 1200 San Francisco, CA 94105, USA tel: 415 Global Health Group Offices, 50 Beale Street, San Francisco, CA. Contact

Klein, Ophir

430

Derogation displayed amongst student degree groups: effects of self-esteem, threat, identification and target group  

E-Print Network [OSTI]

Previous studies investigating the role of self-esteem as a predictor and outcome of intergroup behaviour have failed to employ the most apt measure of self-esteem and much work is based around minimal groups and game ...

Childs, Jessica, E

2008-06-27T23:59:59.000Z

431

"The Island Sanctuaries Group: Date and Significance."  

E-Print Network [OSTI]

in the contcrmporary tombs at Sellopoulo (e.g., Fig. l6), Archanes, and KalyviaT. Fz,q. 15 CN{S V 441, imprcssion i)g. 16 H\\{ 1865 lrom Sellopoulo 1'. 1, impression. The Spectaclc-Eye Group must have bccn produccd before Knossos fcll, say ca. 1400 B.C. The smooth... this srollp a name The Eleeant Tu'ins from Kca. Both arc of translucent limestone, ancl each carries an exceptionallr' dclicate animal, a cow perhaps on one, a deer on the other. The thinness of thc lcgs, thc restrained use of dots f^' inintq e.r'q ,nd p17711...

Younger, John G.

1981-01-01T23:59:59.000Z

432

Representations of groups of order 16  

E-Print Network [OSTI]

, the linear transformat'ion A is equal to kE where E is the identity transformation of Hom(U, U). We now apply I. emma 2. 5 to obtain a significant re- sult for the representations of Abelian groups. Theorem 2. 1. Every irreducible representation of a.... & 1 k i ' i It follows that p cannot divide all the ni since c is not divisible by p. Let g E 6 belong to some conjugacy class of n denote by elements such that p does not divi, de n and g N(g), the normalizer of g in G. Since 5(g) is a sub...

McCarthy, Edmond Robert

1966-01-01T23:59:59.000Z

433

APEC experts` group on clean coal technology  

SciTech Connect (OSTI)

The proceedings of the Asia-Pacific Economic Cooperation (APEC) Expert`s Group on Clean Coal Technology`s Technical Seminar held in Jakarta, Indonesia, from October 10-13, 1994 are presented. A total of 28 papers were presented at the seminar. These papers addressed issues of relevance to APEC member economies associated with the application of clean coal technologies (CCTs) and created a forum where information and ideas about CCTs and their application in the Asia-Pacific Region could be exchanged. A separate abstract was prepared for each paper for inclusion in the Energy Science and Technology Database.

NONE

1994-12-31T23:59:59.000Z

434

Durability Working Group | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: TopEnergy DOEDealingVehicle1 Closing the Circle:Durability Working Group

435

Linuo Group Co Ltd | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 - 429Lacey,(Monaster And Coolbaugh, 2007)is 109.Lindley, New York:Linked.Linuo Group

436

Breakout Group Instructions | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: Top Five EEREDepartmentFebruary 4, 2014BiogasBoilerplateBradDepartment ofGroup

437

United Energy Group PLC | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpenWende NewSowitec do Brasil EnergiaSurPVTipAboutUSEnergy Group PLC

438

Alpine Energy Group LLC | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpenWende NewSowitecAWSAgri-Energy Focus AreaValleyEnergy Group LLC

439

Photoelectrochemical Working Group | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Careerlumens_placard-green.epsEnergy1.pdfMarket | DepartmentPhotoelectrochemical Working Group meets

440

PROKON Entrepreneurial Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpenWende New Energy CoFirstNovos SistemasPROKON Entrepreneurial Group

Note: This page contains sample records for the topic "groups 2-digit sic" 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

MiniBooNE Pion Group  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment SurfacesResource Program PreliminaryA3,0 Alabama -AntineutrinoPion Group

442

Blue Sky Group Inc | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: Energy ResourcesJersey:formBlue Energy Address: Box 29068Asheville,Group Inc

443

LBNL China Energy Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Powerstories on climateJuno Beach, Florida:KenyonKosciusko CountyGroup NameLBNL

444

CIM Group Inc | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarreis a city in ChittendenPartners LLC Jump to:CouncilCIM Group

445

Natural Resource Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's HeatMexico: EnergyMithunCenter Jump to: navigation, search Logo: NaturalGroup

446

Richard Gerber! NERSC! User Services Group Lead  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0 Resource Program September 2010 BRichardGroup Lead Debugging and

447

Fermilab | Employee Advisory Group | Value Statement  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibility ofSmall15.000 Rev.Group Members Sabina

448

Strategic Initiatives Work Group | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomenthe House Committee on Energy andDepartmentDepartment ofTheStevenWork Group,

449

Interagency Working Groups | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in3.pdfEnergy Health andofIan KalinResearch, Development,CoP) Charter |Working Groups

450

Pattern Energy Group LP | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth'sOklahoma/GeothermalOrange County isParadise, Nevada: Energy6Communities |Group

451

Biodiesel Investment Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarre Biomass FacilityOregon:GreatBioGold FuelsTradingGroup

452

Wind Capital Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 South Place:ReferenceEdit JumpWill County, Illinois: NameGroup Place: St.

453

Industry Group Learns About Light Source Opportunities  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching.348ASSEMBLY [ICO]Industry Group Learns About Light

454

PulteGroup | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration JumpSanyalTempWellheadWahkiakum County Place:PulteGroup Jump to:

455

Delta Energy Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 No revision has beenFinancial IncentiveEnergy Group Jump to:

456

Excess Group Ltd | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSan Leandro,Law andEnergyEvogy Inc JumpChinaExcess Group

457

Gaviota Energy Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpen EnergyBoard" form. To createResearch Groups Jump to:Gaviota

458

Jinlong Industrial Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 - 429 Throttled (botOpen6 Climate ZoneJerome is aJinlong Industrial Group Jump to:

459

The Marc Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectric Coop, Inc Place:InnovationFunds-Business GuideRoundtableTheMarc Group

460

Affordable Solar Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWaterBrasil JumpAerowatt Energies Jump to: navigation,Solar Group Jump

Note: This page contains sample records for the topic "groups 2-digit sic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Zhengji Zhao! NERSC User Services Group!  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste andAnniversary, part 2Zenoss, Version 2.1.3SurfaceZhemingGroup! !

462

Clean Energy Group Virginia | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin:EnergyWisconsin: Energy Resources JumpSouth Dakota:Clean AirGroup Virginia Jump

463

Climate Knowledge Brokers Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin:EnergyWisconsin: Energy ResourcesInformation is 045.Update JumpGroup

464

Sun Energy Group LLC | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty LtdSteen, Minnesota:36052°, -97.6114217° LoadingEnergy Group LLC Place: New

465

Sunwatt Group India | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty LtdSteen, Minnesota:36052°,Sunfield,Farms BiomassSunwatt Group India Jump to:

466

The Sustainable Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty LtdSteen,Ltd Jump Jump to:InformationThe PotomacInc Jump to:ConsortiumGroup

467

Elemental Power Group LLC | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37. It is classifiedProject) | Open EnergyEnergyElectronVaultTexas)Power Group

468

Sandia National Laboratories: Group Achievement Award  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLS Exhibit at ExploraGlobal SandiaVermont andGroup Achievement

469

Impax Group Plc | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:PhotonHolyNameInformationsource HistoryEnergyImpax Group Plc

470

Pyramidal Ownership in Ecuadorian Business Groups  

E-Print Network [OSTI]

OF PHILOSOPHY Approved by: Chair of Committee, Steven Wiggins Committee Members, Li Gan Steven Puller Laszlo Tihanyi Head of Department, Larry Oliver May 2009 Major Subject: Economics iii ABSTRACT Pyramidal Ownership in Ecuadorian Business Groups. (May 2009) Mar... as an economist but also, and mostly, in my formation as a person. I also recognize the helpful advice of all the members of my committee, Prof. Li Gan, Prof. Steve Puller and Prof. Laszlo Tihanyi. I appreciate the continuous support and trust of my sponsors...

Granda Kuffo, Maria L.

2010-01-16T23:59:59.000Z

471

Star Formation Histories in the Local Group  

E-Print Network [OSTI]

Deep color magnitude diagrams extending to the main sequence provide the most direct measure of the detailed star formation history in a stellar population. With large investments of observing time, HST can obtain such data for populations out to 1 Mpc, but its field of view is extremely small in comparison to the size of Local Group galaxies. This limitation severely constrains our understanding of galaxy formation. For example, the largest galaxy in the Local Group, Andromeda, offers an ideal laboratory for studying the formation of large spiral galaxies, but the galaxy shows substructure on a variety of scales, presumably due to its violent merger history. Within its remaining lifetime, HST can only sample a few sight-lines through this complex galaxy. In contrast, a wide field imager could provide a map of Andromeda's halo, outer disk, and tidal streams, revealing the spatially-dependent star formation history in each structure. The same data would enable many secondary studies, such as the age variation in Andromeda's globular cluster system, gigantic samples of variable stars, and microlensing tracers of the galaxy's dark matter distribution.

Thomas M. Brown

2004-07-09T23:59:59.000Z

472

Hampton University professor to become group leader at Jefferson...  

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

virginiabusiness.comindex.phpcompaniesarticlehampton-university-professor-to-become-group-leader-at-jeffe... Submitted: Tuesday, May 8...

473

Cryptanalysing the Critical Group: Efficiently Solving Biggs's Discrete Logarithm Problem  

E-Print Network [OSTI]

Cryptanalysing the Critical Group: Efficiently Solving Biggs's Discrete Logarithm Problem Simon R Kingdom s.blackburn@rhul.ac.uk November 7, 2008 Abstract Biggs has recently proposed the critical group that the discrete log problem can be efficiently solved in Biggs's groups. Thus this class of groups is not suitable

474

Small World Properties of Facebook Group Networks Presented to the  

E-Print Network [OSTI]

Small World Properties of Facebook Group Networks A Thesis Presented to the Department of Facebook Group Networks Jason Wohlgemuth, M.A. University of Nebraska, 2012 Advisor: Dora Matache, Ph. That is, we analyze networks, the vertices being Facebook groups sharing a common word in the group name

Matache, Dora

475

Molten-Salt-Based Growth of Group III Nitrides  

DOE Patents [OSTI]

A method for growing Group III nitride materials using a molten halide salt as a solvent to solubilize the Group-III ions and nitride ions that react to form the Group III nitride material. The concentration of at least one of the nitride ion or Group III cation is determined by electrochemical generation of the ions.

Waldrip, Karen E. (Albuquerque, NM); Tsao, Jeffrey Y. (Albuquerque, NM); Kerley, Thomas M. (Albuquerque, NM)

2008-10-14T23:59:59.000Z

476

Federal Utility Partnership Working Group Seminar: Washington Update  

Broader source: Energy.gov [DOE]

Presentation covers the Federal Utility Partnership Working Group Seminar: Washington Update on May 22, 2013.

477

Sign elements in symmetric groups Jrn B. Olsson  

E-Print Network [OSTI]

;Introduction Work in progress Question by G. Navarro about characters in symmetric groups, related to a paper characters · The Isaacs-Navarro question · Sign elements/classes in finite groups and their relation groups · Answering the Isaacs-Navarro question · A general result about sign classes in symmetric groups

Takahashi, Ryo

478

Working Group Report: Lattice Field Theory  

SciTech Connect (OSTI)

This is the report of the Computing Frontier working group on Lattice Field Theory prepared for the proceedings of the 2013 Community Summer Study ("Snowmass"). We present the future computing needs and plans of the U.S. lattice gauge theory community and argue that continued support of the U.S. (and worldwide) lattice-QCD effort is essential to fully capitalize on the enormous investment in the high-energy physics experimental program. We first summarize the dramatic progress of numerical lattice-QCD simulations in the past decade, with some emphasis on calculations carried out under the auspices of the U.S. Lattice-QCD Collaboration, and describe a broad program of lattice-QCD calculations that will be relevant for future experiments at the intensity and energy frontiers. We then present details of the computational hardware and software resources needed to undertake these calculations.

Blum, T.; et al.,

2013-10-22T23:59:59.000Z

479

Prime power subgroups in certain periodic groups  

E-Print Network [OSTI]

if and only if for each x e A, x = a . . . a n 3, 0 Qgtdutgk 2. 7. The set n ts t~nle sndsnt id nd enid t if al . ~ ~ a e I impl1es ai I for eaoh 1 @~~1 2. 8. The set S is a ~ f' or A if end only if S is independent and 5 generates A. LggNA 2. Q.... If S w NS& then '(NS&Sj w l Snd [NT:Tj e l. TheXefOre T S NT e NS w S, oontrary to S $ T. Thex'efore S must be propexly oontained in NS COROLLARY p, 7. Tf Q is a p-group, S a px'opex subgroup of' Q, and 1f $0xNS1 is 1'inite, then there ex1sts...

Armendariz, Efraim Pacillas

1962-01-01T23:59:59.000Z

480

"The Mycenae-Vapheio Lion Group"  

E-Print Network [OSTI]

) 34r-qz P.P. Betancourr, ,,The pol1.p Workshop: A Sqlistic Group from LM Ib," AIA 77 g97 j1 333-J4i B.L. I3enson, "Observations on M1'cenaean Vasc-paint- ers," AIA 65 (r96r) 337-47; F. Stubbings, ',Some Ml.cenaean Arhsts," BSA 46 (r95r) t68-77. r... the margins to fiIl spaces. :. (Fig. 3) Karo 394. Dagger in niello. Ob- verse: a lion attacks a small herd of five sazelles. He fells one towrrd the hilt while the others flee in e flying gallop down the blade. Three gazelles are in- tent on escaping, but one...

Younger, John G.

1978-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "groups 2-digit sic" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Representations of the groups of order 24  

E-Print Network [OSTI]

'y 0 1 0 0 0 1 z z 1 0 0 x m g22 ~ ( x, y-x, z) -1 1 0 y = y-x 0 0 1 z z a( 1, -1, 0) 0 1 0 1 0 0 0 0 1 x y z z g3 (y? ) 24 1 -1 0 0 -1 0 0 0 1 z z g24- (x-X -V g. O 2W ~RI 3 g3 JR I a' i6 L t 5 y Jt 9 l3 Figure 3. Six... in the representation tables are the exponents of m in k cos kn/12 + i sin k&/12. CAYLEY TABLE FOR GROUP NUHBER 2 3 10 ll 3 11 12 1 2 12 10 7 8 9 10 11 12 4 5 8 9 7 lj 12 10 5 6 9 7 8 12 10 ll 6 4 10 jl 12 7 11 12 10 8 12 10...

Strange, John Billy

1967-01-01T23:59:59.000Z

482

LBL RUNAROUND 3.00km (1.865mi) September 13, 1985 page 1 Place Time Name Group Group  

E-Print Network [OSTI]

LBL RUNAROUND 3.00km (1.865mi) September 13, 1985 page 1 Place Time Name Group Group Place 1 10 course record #12;LBL RUNAROUND 3.00km (1.865mi) September 13, 1985 page 2 Place Time Name Group Group-49 19 100 14:03.5 Joshua W. Burton mi) September 13, 1985 page 3

483

LBL RUNAROUND 3.00 km (1.865 mi) September 19, 1986 page 1 Place Time Name Group Group  

E-Print Network [OSTI]

LBL RUNAROUND 3.00 km (1.865 mi) September 19, 1986 page 1 Place Time Name Group Group Place 1 10 12:53.1 Alan Comnes mi) September 19, 1986 page 2.00 km (1.865 mi) September 19, 1986 page 3 Place Time Name Group Group Place 109 14:30.9 Lutgard

484

Author / Computing, 2000, Vol. 0, Issue 0, 1-2 Digital Storytelling in Africa  

E-Print Network [OSTI]

Author / Computing, 2000, Vol. 0, Issue 0, 1-2 1 Digital Storytelling in Africa Gary Marsden1) , llda Ladeira1) , Thomas Reitmaier1) , Nicola J Bidwell2) Edwin Blake 1) 1) Department of Computer

Blake, Edwin

485

Preservation Planning for Digital Information: Final Report of the HVC2 Digital Preservation Task Force  

E-Print Network [OSTI]

on Storage at the PADI site, http://www.nla.gov.au/padi/topics/10.html. 9 through either transformation or emulation processes; and display rendered objects to the user. These services work in conjunction with Indexing and Search Services. Status..., http://www.nla.gov.au/padi/topics/18.html) Architectural Framework ? Identification / Authentication / Authorization o There are no specific ?best practices? regarding I/A/A for digital preservation per se. The primary requirements...

Fyffe, Richard; Ludwig, Deborah; Roach, Mary; Schulte, Becky; Warner, Beth Forrest

2004-11-11T23:59:59.000Z

486

Presentations by the Nizkorodov group members -1 Presentations by the Nizkorodov Group Students and Postdoctoral Researchers  

E-Print Network [OSTI]

the group his/her name is shown in green · If the presenting author is a postdoctoral researcher fromUCI International Workshop, January 2014, Laguna Beach, California, USA H.J. Lee, P. Aiona, A. Laskin, J. Laskin, S dissolved in cloud and fog waters 41. 2012 AirUCI International Workshop, January 2012, Laguna Beach

Nizkorodov, Sergey

487

Steam Generator Group Project. Annual report, 1982  

SciTech Connect (OSTI)

The Steam Generator Group Project (SGGP) is an NRC program joined by additional sponsors. The SGGP utilizes a steam generator removed from service at a nuclear plant (Surry 2) as a vehicle for research on a variety of safety and reliability issues. This report is an annual summary of progress of the program for 1982. Information is presented on the Steam Generator Examination Facility (SGEF), especially designed and constructed for this research. Loading of the generator into the SGEF is then discussed. The report then presents radiological field mapping results and personnel exposure monitoring. This is followed by information on field reduction achieved by channel head decontaminations. The report then presents results of a secondary side examination through shell penetrations placed prior to transport, confirming no change in generator condition due to transport. Decontamination of the channel head is discussed followed by plans for eddy current testing and removal of the plugs placed during service. Results of a preliminary profilometry examination are then provided.

Clark, R.A.; Lewis, M.

1984-02-01T23:59:59.000Z

488

Electrodeposition of binary iron-group alloys  

SciTech Connect (OSTI)

Thin films of NiCo and CoFe have been galvanostatically electroplated onto a platinum rotating disk electrode from simple sulfate baths containing 0.5M of the more noble metal sulfate and 0.1M of the less noble metal sulfate. The experimental results are compared to those of previous studies of NiFe codeposition in order to study the anomalous codeposition behavior of the binary iron-group alloys. Comparison of the electrodeposition results indicates that codeposition of these binary alloys is not totally analogous. It was found that codeposition of NiCo and NiFe show more mass-transfer effects than does CoFe deposition within the range of current densities studied. A model of anomalous codeposition put forth previously for NiFe was applied to the electrodeposition of NiCo and CoFe to determine the extensibility of the model, which assumes metal mono hydroxides, MOH{sup +}, are the important charge-transfer species. This model was unable to characterize fully either NiCo or CoFe electrodeposition. However, with minor changes to the hydrolysis constants used in the model, the model predictions were found to agree with the data for CoFe codeposition and greatly, improve the fit for the NiCo results.

Sasaki, K.Y.; Talbot, J.B. [Univ. of California, San Diego, La Jolla, CA (United States)

1995-03-01T23:59:59.000Z

489

Renormalization Group Analysis of Supersymmetric Particle Interactions  

SciTech Connect (OSTI)

We reexamine the renormalization group equations (RGEs) for the dimensionless and dimensionful parameters of the Minimal Supersymmetric Standard Model (MSSM), incorporating 1-loop thresholds. The inclusion of these thresholds necessarily results in splitting between dimen-sionless couplings which are equal at the tree level. Assuming that the SUSY-breaking mechanism does not introduce new intergenerationalcouplings, we present the most general form for high-scale, soft-SUSY-breaking (SSB) parameters. With this as our boundary condition, we consider illustrative examples of numerical solutions to the RGEs. In a supersymmetric grand unified theory with the scale of SUSY scalars split from that of gauginos and higgsinos, we find that the gaugino mass unification relation may be violated to the order of 10%. Further, we consider the rate for the flavor violating decay of the lightest stop to charm plus neutralino. We find that using the complete RGE solution as opposed to the commonly used 'single-step' integration of the RGEs can qualitatively change the picture of event-topologies from top-squark pair production, or from gluino production if gluino to stop plus top is the dominant gluino decay mode.

Box, Andrew D. [Department of Physics and Astronomy, University of Oklahoma, Norman, OK 73019 (United States)

2010-02-10T23:59:59.000Z

490

T2 working group summary report  

SciTech Connect (OSTI)

The T2 Working Group has reviewed and discussed the issues and challenges of a wide range of magnet technologies: superconducting magnets using NbTi, Nb{sub 3}Sn and HTS conductor with fields ranging from 2-15 T and permanent magnets up to 4 T. The development time of these technologies varies significantly, but all are considered viable, providing an unprecedented variety of choice that can be determined by a balance of cost and application requirements. One of the most significant advances since Snowmass '96 is the increased development and utilization of Nb{sub 3}Sn. All of the current US magnet programs (BNL, FNAL, LBNL, and Texas A and M) have programs using Nb{sub 3}Sn. There are also active programs in HTS development at BNL and LBNL. A DOE/HEP sponsored program to increase the performance and reduce the cost of Nb{sub 3}Sn is in its second year. The program has already made significant advances. The current funding for this program is $500k/year and an increase to $2M has been proposed for FY02.

S. Caspi et al.

2002-11-19T23:59:59.000Z

491

APEC experts` group on clean coal technology  

SciTech Connect (OSTI)

These proceedings are the result of a Technical Seminar of the APEC Experts Group on Clean Coal Technology, held in Thailand, September 6-10, 1993. The National Energy Policy Council of Thailand requested the seminar in response to growing public, government and private sector environmental concerns related to increased use of lignite for electricity generation in Thailand. The core of the seminar was a two-day series of 25 technical papers contained in these proceedings. The goals were: (1) to inform government officials and electric utility managers on the range of CCTs, their commercial status, environmental performance, and suitability for various types of coal, including lignite; and (2) to hold a public seminar to inform the public about the same issues set in the context of energy policy concerns that were articulated by the National Energy Policy Council. Sixty people participated in the technical seminar held in Chiang Mai, and approximately 170 people attended the public seminar in Bangkok, Thailand. All papers have been abstracted and indexed separately for inclusion in the Energy Science and Technology Database.

NONE

1993-12-31T23:59:59.000Z

492

WIPP Recertification - An Environmental Evaluation Group Perspective  

SciTech Connect (OSTI)

The Waste Isolation Pilot Plant (WIPP), a repository for defense transuranic (TRU) waste, was built and is operated by the U.S. Department of Energy (DOE). The WIPP Land Withdrawal Act (LWA) required initial certification of compliance of the WIPP by the U.S. Environmental Protection Agency (EPA). In addition, a recertification decision is required by the LWA every five years, dated from the initial receipt of TRU waste. The first TRU waste shipment arrived at the WIPP on March 26, 1999, and therefore the first recertification application is due from DOE to EPA by March 25, 2004. The Environmental Evaluation Group (EEG) provides technical oversight of the WIPP project on behalf of the State of New Mexico. The EEG considers the first recertification as a precedent setting event. Therefore, the EEG began the identification of recertification issues immediately following the initial certification decision. These issues have evolved since that time, based on discussions with the DOE and EEG's understanding of DOE's ongoing research. Performance assessment is required by the EPA certification and its results are needed to determine whether the facility remains in compliance at the time of the recertification application. The DOE must submit periodic change reports to the EPA which summarize activities and conditions that differ from the compliance application. Also, the EPA may request additional information from the DOE that may pertain to continued compliance. These changes and new information must be considered for recertification performance assessment.

Allen, L. E.; Silva, M. K.

2003-02-25T23:59:59.000Z

493

Interest Group Survival: Shared Interests Versus Competition for Resources  

E-Print Network [OSTI]

Population ecology theory on interest group populations is examined to determine the implications for group membership levels in the states. Using the assumptions of the competitive exclusion principle, it is hypothesized ...

Haider-Markel, Donald P.

1997-08-01T23:59:59.000Z

494

Explaining cohesion, fragmentation, and control in insurgent groups  

E-Print Network [OSTI]

The internal unity and discipline of insurgent groups helps us understand the military effectiveness of armed groups, patterns of violence against civilians, and the ability of insurgent organizations to negotiate and ...

Staniland, Paul Stephen

2010-01-01T23:59:59.000Z

495

Group Recommender Systems: New Perspectives in the Social Web  

E-Print Network [OSTI]

, the explosive growth of online communities, their increasing activ- ity and collected data, lift boundaries a movie or TV show to watch by a particular group of people (a couple, a family, a group of friends

Cantador, Iván

496

Improving Conifer Timber Steering Group Wednesday 24th  

E-Print Network [OSTI]

construction timber markets. 2. Opening Discussion On arrival at the Best Western Park Hotel, Falkirk the group Conifer Timber Quality steering group web page link http://fcnotes/fr/INFD- 6KYGHS which went live on 19th

497

2014-07-08 Issuance: ASRAC Manufactured Housing Working Group...  

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

7-08 Issuance: ASRAC Manufactured Housing Working Group; Notice of Membership 2014-07-08 Issuance: ASRAC Manufactured Housing Working Group; Notice of Membership This document is a...

498

2014-07-08 Issuance: ASRAC Regional Enforcement Working Group...  

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

7-08 Issuance: ASRAC Regional Enforcement Working Group; Notice of Membership 2014-07-08 Issuance: ASRAC Regional Enforcement Working Group; Notice of Membership This document is a...

499

aapm task group: Topics by E-print Network  

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

High North 2000-01-01 4 Submission to the Prime Minister's Task Group on Emissions Trading in response to the Task Group's Issues Paper of February 2007 Environmental...

500

Comparative Dynamics of Leucine Methyl Groups in FMOC-Leucine...  

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

Dynamics of Leucine Methyl Groups in FMOC-Leucine and in a ProteinHydrophobic Core Probed by Solid-State Deuteron Comparative Dynamics of Leucine Methyl Groups in FMOC-Leucine and...