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


1

" Row: Selected SIC Codes; Column: Energy Sources;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1.2 Number

2

" Row: Selected SIC Codes; Column: Energy Sources;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1.2 Number2.

3

" Row: Selected SIC Codes; Column: Energy Sources;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1.2 Number2.1. Fuel

4

" Row: Selected SIC Codes; Column: Energy Sources;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1.2 Number2.1.

5

" Row: Selected SIC Codes; Column: Energy Sources;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1.2 Number2.1.S4.1.

6

" Row: Selected SIC Codes; Column: Energy Sources;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1.2

7

" Row: Selected SIC Codes; Column: Energy Sources and Shipments;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1.2 Number of21.

8

" Row: Selected SIC Codes; Column: Energy Sources and Shipments;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1.2 Number of21.2.

9

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

10

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/m2 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

11

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

12

Positive affect increases the breadth of attentional selection G. Rowe, J. B. Hirsh, and A. K. Anderson  

E-Print Network [OSTI]

to broaden the scope of attentional filters, reducing their selectivity. The effect of positive mood states) sometimes is referred to as ``weapon focus,'' where attention is narrowed at the expense of encoding

Toronto, University of

13

Row fault detection system  

DOE Patents [OSTI]

An apparatus, program product and method check for nodal faults in a row of nodes by causing each node in the row to concurrently communicate with its adjacent neighbor nodes in the row. The communications are analyzed to determine a presence of a faulty node or connection.

Archer, Charles Jens (Rochester, MN); Pinnow, Kurt Walter (Rochester, MN); Ratterman, Joseph D. (Rochester, MN); Smith, Brian Edward (Rochester, MN)

2012-02-07T23:59:59.000Z

14

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

15

Roswell International Air Center Airport (ROW) Pavement Condition and Analysis  

E-Print Network [OSTI]

Roswell International Air Center Airport (ROW) Pavement Condition and Analysis Submitted to: Jane M ................................................1. Conditions at Roswell International Air Center (ROW) 4 .................................Figure 1. Geographic Location of Roswell International Air Center (ROW) 4 ..............................Table 1

Cal, Mark P.

16

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, Ral 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

17

Stability of tube rows in crossflow. [LMFBR  

SciTech Connect (OSTI)

A mathematical model for the instability of tube rows subjected to crossflow is examined. The theoretical model, based on the fluid-force data for a pitch-to-diameter ratio of 1.33, provides additional insight into the instability phenomenon. Tests are also conducted for three sets of tube rows. The effects of mass ratio, tube pitch, damping, detuning and finned tubes are investigated. Theoretical results and experimental data are in good agreement.

Chen, S.S.; Jendrzejczyk, J.A.

1982-10-01T23:59:59.000Z

18

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

19

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

20

Publications by Timothy Rowe February 25, 2008  

E-Print Network [OSTI]

Digital Library: www.DigiMorph.org High-Resolution X-ray CT Facility: www.ctlab.geo.utexas.edu Vertebrate: Digital Atlas of the Skull. CD-ROM (Second Edition, for Windows and Macintosh platforms), University.0, October 1994. Rowe, T., W. Carlson, and W. Bottorff. 1993. Thrinaxodon: Digital Atlas of the Skull. CD

Yang, Zong-Liang

Note: This page contains sample records for the topic "row selected 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

Effects of various inefficiencies in rowing on shell speed  

E-Print Network [OSTI]

First order predictions were made in determining the effects of various sources of inefficiency in rowing on shell speed. These predictions were then tested using a MATLAB model of the rowing stroke. The model simulates ...

Young, Stephen F., Jr

2009-01-01T23:59:59.000Z

22

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 Universitt 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

23

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

24

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

25

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...

26

CSLB ROW Forms | 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: EnergyBoston Areais3: Crystalline Rock -COPPE Incubator JumpISES-Forms JumpROW

27

Globally Optimal Solutions for Large Single-Row Facility Layout ...  

E-Print Network [OSTI]

May 22, 2006 ... This paper is concerned with the single-row facility layout problem (SRFLP). ...... and ATLAS software used to obtain the computational results.

2006-05-22T23:59:59.000Z

28

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

29

DEMONSTRATION RANK VIA THE SVD AND ROW ECHELON FORM  

E-Print Network [OSTI]

OUTLINES DEMONSTRATION RANK VIA THE SVD AND ROW ECHELON FORM TWO TWISTS AND A TEST NUMERICAL RANK VIA THE SVD AND ROW ECHELON FORM TWO TWISTS AND A TEST NUMERICAL RESULTS CONCLUSIONS GOAL rank construct a basis for the null space. LESLIE FOSTER MATHEMATICS SAN JOSE STATE UNIVERSITY FOSTER

Foster, Leslie

30

Instability characteristics of fluidelastic instability of tube rows in crossflow  

SciTech Connect (OSTI)

An experimental study is reported to investigate the jump phenomenon in critical flow velocities for tube rows with different pitch-to-diameter ratios and the excited and intrinsic instabilities for a tube row with a pitch-to-diameter ratio of 1.75. The experimental data provide additional insights into the instability phenomena of tube arrays in crossflow. 9 refs., 10 figs.

Chen, S.S.; Jendrzejczyk, J.A.

1986-04-01T23:59:59.000Z

31

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...

32

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

33

Health hazard evaluation report HETA 96-0137-2607, Yankee Atomic Electric Company, Rowe, Massachusetts  

SciTech Connect (OSTI)

In response to a request from the Health and Safety Supervisor at the Yankee Nuclear Power Station (SIC-4911), Rowe, Massachusetts, an investigation was begun into ozone (10028156) exposure during plasma arc cutting and welding. Welders had reported chest tightness, dry cough, and throat and bronchial irritation. The nuclear power station was in the process of being decommissioned, and workers were dismantling components using welding and cutting methods. Of the operations observed during the site visit, the highest ozone concentrations were generated during plasma arc cutting, followed by metal inert gas (MIG) welding and arc welding. During plasma arc cutting the average and peak concentrations exceeded the NIOSH ceiling recommended exposure limit of 0.1 part per million. The author concludes that ozone exposure during plasma arc cutting and MIG welding presented a health hazard to welders. The author recommends that improvements be made in the local exhaust ventilation, that nitrogen-dioxide levels be monitored during hot work, and that many exposed workers wear protective clothing, use ultraviolet blocking lotion, and continue the use appropriate shade of eye protection.

Sylvain, D.C.

1996-10-01T23:59:59.000Z

34

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

35

Optimization of row spacing and nitrogen fertilization for cotton  

E-Print Network [OSTI]

rows. One recommendation is to achieve between 247,100 to 395,360 plants per hectare for UNR cotton (BASF Corporation, 1999). In conventional cotton 74,176 to 123,550 plants per hectare has been recommended in California (Hake et al., 1996a... recommendation, not directed toward a particular state, is 247,097 to 395,355 plants ha-1 (BASF, 1999). The 76-cm row spacing plant population means in this study fell within the recommendations for conventional rows, and the 19-cm means were within...

Clawson, Ernest Leslie

2004-09-30T23:59:59.000Z

36

Optimization Online - Simultaneous Column-and-Row Generation ...  

E-Print Network [OSTI]

Nov 14, 2010 ... Abstract: In this paper, we develop a simultaneous column-and-row generation algorithm that could be applied to a general class of large-scale...

Ibrahim Muter

2010-11-14T23:59:59.000Z

37

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

38

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...

39

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:...

40

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

Note: This page contains sample records for the topic "row selected 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

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

42

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.

43

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.

44

Sport Scholarship programme Rowing at Birmingham  

E-Print Network [OSTI]

included Silver at the World Cup in Linz 2007; 5th at the World Cup in Amsterdam 2007; 4th at Lucerne 2007, winning gold in Bled, silver in Munich and bronze in Lucerne. She has already been selected for the women

Heinke, Dietmar

45

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

46

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

47

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

48

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.

49

Row Buffer Locality Aware Caching Policies for Hybrid Memories  

E-Print Network [OSTI]

strengths A hybrid memory system (DRAM-PCM) aims for best of both Problem: How to place data between static energy (no refresh) 6 DRAM PCM CPU MC MC #12;Hybrid Memory Design direction: DRAM as a cache memory devices? 8 DRAM PCM CPU MC MC #12;Outline Background: Hybrid Memory Systems Motivation: Row

50

FINDING ROWS OF PEOPLE IN GROUP IMAGES Andrew C. Gallagher  

E-Print Network [OSTI]

People are among the most popular subjects in photography, and in many social settings, images of groupsFINDING ROWS OF PEOPLE IN GROUP IMAGES Andrew C. Gallagher Carnegie Mellon University Department of people are captured. People often arrange themselves in a very struc- tured manner in these group images

Chen, Tsuhan

51

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

52

RowClone: Fast and Energy-Efficient In-DRAM Bulk Data Copy and Initialization  

E-Print Network [OSTI]

RowClone: Fast and Energy-Efficient In-DRAM Bulk Data Copy and Initialization Processor MemoryChannel Limited bandwidth High energy Carnegie Mellon University Intel Pittsburgh #12;RowClone: Fast and Energy-Efficient University Intel Pittsburgh #12;RowClone: Fast and Energy-Efficient In-DRAM Bulk Data Copy and Initialization

53

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

54

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...

55

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 1072C; a time average, peak temperature of 1182C 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

56

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.

57

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

58

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

59

Installing a Subsurface Drip Irrigation System for Row Crops  

E-Print Network [OSTI]

. The manifold can be placed at the soil surface or buried. B-6151 7/04 Installing a Subsurface Drip Irrigation System for Row Crops Juan Enciso* *Assistant Professor and Extension Agricultural Engineer, The Texas A&M University System. Figure 1. Typical layout... of a drip irrigation system. Main Field block Flushing valve Valve Flushing manifold Water source Supplying manifold Lateral Tape injection The injector consists of a roll that holds the tape and a shank that opens the soil to bury the tape (Figs. 3...

Enciso, Juan

2004-09-07T23:59:59.000Z

60

File:UtilityROW.pdf | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublicIDAPowerPlantSitingConstruction.pdfNotify98.pdf Jump to:Siting.pdf Jump to: navigation, searchUtilityROW.pdf

Note: This page contains sample records for the topic "row selected 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

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.

62

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.

63

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

64

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

65

Simultaneous Column-and-Row Generation for Large-Scale Linear ...  

E-Print Network [OSTI]

Abstract: In this paper, we develop a simultaneous column-and-row generation algorithm ..... The last assumption does also hold because the linking constraint.

Birbil

2012-04-23T23:59:59.000Z

66

Section 4.6 Rank The set of all linear combinations of the row vectors of a matrix A is called the row space of A and  

E-Print Network [OSTI]

Section 4.6 Rank The set of all linear combinations of the row vectors of a matrix A is called # of nonpivot columns of A. DEFINITION The rank of A is the dimension of the column space of A. rank A dim Col A # of pivot columns of A dim Row A . rank A dim Nul A N n # of pivot columns of A # of nonpivot columns

Belykh, Igor

67

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...

68

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.

69

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

Broader source: Energy.gov [DOE]

Breakout Session 3DBuilding 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, POETDSM Advanced Biofuels

70

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

71

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...

72

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...

73

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 m, 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

74

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...

75

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

76

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

77

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

78

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

79

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

80

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

Note: This page contains sample records for the topic "row selected 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

Clamping of Solid Tungsten Components for the Bulk W Divertor Row in JET Precautionary Design for a Brittle Material  

E-Print Network [OSTI]

Clamping of Solid Tungsten Components for the Bulk W Divertor Row in JET Precautionary Design for a Brittle Material

82

Power Handling of the Bulk Tungsten Divertor Row at JET: First Measurements and Comparison to the GTM Thermal Model  

E-Print Network [OSTI]

Power Handling of the Bulk Tungsten Divertor Row at JET: First Measurements and Comparison to the GTM Thermal Model

83

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 13501450 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, 3560 nm for 1350 C, 4080 nm for 1400 C, and 3060 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

84

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

85

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

86

Level: National and Regional Data; Row: Selected NAICS Codes; Column: Energy Sources  

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 Year in Review1,213 136,422 133,4422.49 Next22468August

87

" Row: Industry-Specific Technologies within Selected NAICS Codes;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total Inputs13. Quantity of133.

88

Analysis of conventional and plutonium recycle unit-assemblies for the Yankee (Rowe) PWR  

E-Print Network [OSTI]

An analysis and comparison of Unit Conventional UO2 Fuel-Assemblies and proposed Plutonium Recycle Fuel Assemblies for the Yankee (Rowe) Reactor has been made. The influence of spectral effects, at the watergaps -and ...

Mertens, Paul Gustaaf

1971-01-01T23:59:59.000Z

89

Microsoft Word - CX-Pearl-Keeler_ROW_Marking_10June2013  

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

location of the ROW centerline and monument the centerline with 3.25-inch- diameter aluminum caps set flush with the ground on 0.62-inch- diameter by 18-inch-long rebar. These...

90

E-Print Network 3.0 - alternate row placement Sample Search Results  

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

Andrew E. Caldwell, Andrew B. Kahng and Igor L. Markov Summary: ,abk,imarkovg@cs.ucla.edu Abstract This work focuses on congestion-driven placement of standard cells into rows in...

91

Fact #777: April 29, 2013 For the Second Year in a Row, Survey...  

Energy Savers [EERE]

777: April 29, 2013 For the Second Year in a Row, Survey Respondents Consider Fuel Economy Most Important When Purchasing a Vehicle Fact 777: April 29, 2013 For the Second...

92

Quarter Annulus Simulations of Blade Row Interaction at Several Gaps and Discussion of  

E-Print Network [OSTI]

annulus simulations to investigate the physics involved in the rotor bow shock interaction with a highly loaded upstream blade row and its eect on the compressor. Three dierent axial spacings between the rotor

Cincinnati, University of

93

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

94

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

95

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 }0), and (101{sup }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 }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

96

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

97

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.

98

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

99

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

100

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

Note: This page contains sample records for the topic "row selected 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.


101

Multi-Dimensional Stiffness Characteristics of Double Row Angular Contact Ball Bearings and Their Role in Influencing Vibration Modes.  

E-Print Network [OSTI]

?? A new analytical stiffness model for the double row angular contact ball bearings is proposed since the current methods do not provide stiffness matrix (more)

Gunduz, Aydin

2012-01-01T23:59:59.000Z

102

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 800C and to ~1 dpa in ATR at 1090C. 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 800C, bubble development was too fine to resolve even by high resolution TEM. However, following irradiation at 1090C 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

103

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.

104

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

105

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

106

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 MELCORs 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

107

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

108

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

109

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.

110

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

111

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

112

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, 23 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

113

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

114

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.

115

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

116

Effects of row spacing, seed rate and maturity group on late planted soybean under irrigated and dryland  

E-Print Network [OSTI]

to decrease. This purpose of this study is determine the best planting strategies in regards to row spacing. Edwardsville, KS). Plots with 7.5 and 15 in row spacing were planted with a Great Plains Drill model 3P600, and pest management practices were conducted according to Oklahoma State University recommended practices

Balasundaram, Balabhaskar "Baski"

117

Rows of ATP Synthase Dimers in Native Mitochondrial Inner Membranes Nikolay Buzhynskyy,* Pierre Sens,y  

E-Print Network [OSTI]

Rows of ATP Synthase Dimers in Native Mitochondrial Inner Membranes Nikolay Buzhynskyy,* Pierre Marseille, France ABSTRACT The ATP synthase is a nanometric rotary machine that uses a transmembrane electrochemical gradient to form ATP. The structures of most components of the ATP synthase are known, andtheir

Sens, Pierre

118

Heat transfer from multiple row arrays of low aspect ratio pin fins Seth A. Lawson a,  

E-Print Network [OSTI]

Heat transfer from multiple row arrays of low aspect ratio pin fins Seth A. Lawson a, , Alan A 18 March 2011 Available online 5 May 2011 Keywords: Pin fins Heat transfer augmentation Array to enhance heat transfer. In modern gas turbines, for exam- ple, airfoils are designed with sophisticated

Thole, Karen A.

119

MOVEMENT OF FEMALE WHITE-TAILED DEER: EFFECTS OF CLIMATE AND INTENSIVE ROW-CROP AGRICULTURE  

E-Print Network [OSTI]

1099 MOVEMENT OF FEMALE WHITE-TAILED DEER: EFFECTS OF CLIMATE AND INTENSIVE ROW-CROP AGRICULTURE in intensively (>80%) cultivated areas. From January 2001 to August 2002, we monitored movements of 77 (61 adult of seasonal migration, whereas crop emergence and harvest had minimal effects. Four deer (8%) dispersed a mean

120

SOUTHWEST COTTON HARVEST AID PERFORMANCE AND NARROW ROW OPTIONS Wayne Keeling  

E-Print Network [OSTI]

SOUTHWEST COTTON HARVEST AID PERFORMANCE AND NARROW ROW OPTIONS Wayne Keeling Texas Agricultural Experiment Station Lubbock, TX Abstract Cotton is produced in the Southwest (Texas and Oklahoma) under a wide in rainfall and availability of irrigation, yields may range from 1250 lb/A. Cotton is harvested

Mukhtar, Saqib

Note: This page contains sample records for the topic "row selected 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

High Fidelity Modeling of Blade Row Interaction in a Transonic Compressor  

E-Print Network [OSTI]

the physics involved in the rotor bow shock interaction with a highly loaded upstream blade row and its eect of this additional loss. At close spacing the rotor bow shock was chopped by the wake generator trailing edge spacing the rotor bow shock degenerated into a bow wave before it interacted with the stator trailing edge

Cincinnati, University of

122

Row spacing effects on the canopy light extinction coefficient of upland cotton  

E-Print Network [OSTI]

coefficient (k) in cotton (Gossypium hirsutum). Treatments consisted of four row spacings (0.19-m, 0.38-m, 0.76-m, and 1.00-m) and four plant densities [148, 222, 296, 445 (1998) and 371 (1999) thousand plants ha-1] with each treatment replicated three times...

Steglich, Evelyn Marie

2000-01-01T23:59:59.000Z

123

An Economic Comparison of Conventional and Narrow-Row Cotton Production--Southern Plains of Texas.  

E-Print Network [OSTI]

JUN ~ 3 1977 Texas A&M University June 19' An Economic Comparison of Coventional and Narrow-Row -- Cotton Production-Southern High Plains of Texas The Texas Agricultural Experiment Station, J. E. Miller, Director' The Texas A&M University.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4 Yield Comparisons .......................................... 4 Differences in Inputs Used ............... :................... 6 Fertil izer and Irrigation Inputs . . .......................... 6 Seeding rate...

Young, Kenneth B.; Adams, James R.

1977-01-01T23:59:59.000Z

124

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

125

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...

126

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

127

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 moir pattern is observed by scanning tunneling microscopy, and specific linear dispersion at the K{sup } 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

128

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 Gteborg (Sweden); Bergsten, Tobias [SP Technical Research Institute of Sweden, S-50115 Bors (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), Linkping University, S-58183 Linkping (Sweden)

2014-08-11T23:59:59.000Z

129

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

130

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

131

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

132

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

133

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

134

Effect of plant populations and row spacings on plant and ear characters and grain yield of corn hybrids  

E-Print Network [OSTI]

. Comparison of LAPP means for three hybrids under four population levels. 26 P = PIONEER 3I47 F = FUNK S G 4507 7&000 Tx = TEXAS 40 E 6000 V Q. n cC Tx Tx F 5, 000 F 4, 500 67. 7 IOI. 6 ROW SPACING ( cm ) Fig, 2. Comparison of LAPP means... 4 . Number of days to silk for three hybrids under two row spacings. 18 5. Plant heights, in cm, for three hybrids under four population levels. 20 6. Plant heights, in cm, for three hybrids under two row spacings. 20 7. Ear heights, in cm...

Silapapun, Anek

2012-06-07T23:59:59.000Z

135

Experiment and analysis of instability of tube rows subject to liquid crossflow. [LMFBR  

SciTech Connect (OSTI)

A tube array subjected to crossflow may become unstable by either one or both of the two basic mechanisms: velocity mechanism and displacement mechanism. The significance of these two mechanisms depends on the mass-damping parameter. The velocity mechanism is dominant for tube arrays with a low mass-damping parameter, and the displacement mechanism is dominant for tube arrays with a high mass-damping parameter. This report presents an experimental and analytical investigation of tube rows in liquid crossflow. The main objective is to verify a mathematical model and the transition between the two mechanisms at the intermediate values of mass-damping parameter. Tests of two tube rows are conducted to determine the critical flow velocity as a function of system damping. Experimental and analytical results are found to be in good agreement.

Chen, S.S.; Jendrzejczyk, J.A.

1981-09-01T23:59:59.000Z

136

DisClose: Discovering Colossal Closed Itemsets via a Memory Efficient Compact Row-Tree  

SciTech Connect (OSTI)

Itemset mining has recently focused on discovery of frequent itemsets from high-dimensional datasets with relatively few rows and a larger number of items. With exponentially in-creasing running time as average row length increases, mining such datasets renders most conventional algorithms impracti-cal. Unfortunately, large cardinality closed itemsets are likely to be more informative than small cardinality closed itemsets in this type of dataset. This paper proposes an approach, called DisClose, to extract large cardinality (colossal) closed itemsets from high-dimensional datasets. The approach relies on a memory-efficient Compact Row-Tree data structure to represent itemsets during the search process. The search strategy explores the transposed representation of the dataset. Large cardinality itemsets are enumerated first followed by smaller ones. In addition, we utilize a minimum cardinality threshold to further reduce the search space. Experimental result shows that DisClose can complete the extraction of colossal closed itemsets in the considered dataset, even for low support thresholds. The algorithm immediately discovers closed itemsets without needing to check if each new closed itemset has previously been found.

Zulkurnain, Nurul F.; Keane, John A.; Haglin, David J.

2013-02-01T23:59:59.000Z

137

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?=?4.430.46 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, Universit di Torino, Via P. Giuria 1, I-10125 Torino (Italy)

2014-05-02T23:59:59.000Z

138

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 2124Al10 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 AlSi 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 AlSi 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

139

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

140

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

Note: This page contains sample records for the topic "row selected sic" from the National Library of EnergyBeta (NLEBeta).
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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

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

142

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

143

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

144

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

145

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.

146

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

147

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

148

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

149

Data Sharing Report Characterization of Isotope Row Facilities Oak Ridge National Laboratory Oak Ridge TN  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) Oak Ridge Office of Environmental Management (EM-OR) requested that Oak Ridge Associated Universities (ORAU), working under the Oak Ridge Institute for Science and Education (ORISE) contract, provide technical and independent waste management planning support using funds provided by the American Recovery and Reinvestment Act (ARRA). Specifically, DOE EM-OR requested ORAU to plan and implement a survey approach, focused on characterizing the Isotope Row Facilities located at the Oak Ridge National Laboratory (ORNL) for future determination of an appropriate disposition pathway for building debris and systems, should the buildings be demolished. The characterization effort was designed to identify and quantify radiological and chemical contamination associated with building structures and process systems. The Isotope Row Facilities discussed in this report include Bldgs. 3030, 3031, 3032, 3033, 3033A, 3034, 3036, 3093, and 3118, and are located in the northeast quadrant of the main ORNL campus area, between Hillside and Central Avenues. Construction of the isotope production facilities was initiated in the late 1940s, with the exception of Bldgs. 3033A and 3118, which were enclosed in the early 1960s. The Isotope Row facilities were intended for the purpose of light industrial use for the processing, assemblage, and storage of radionuclides used for a variety of applications (ORNL 1952 and ORAU 2013). The Isotope Row Facilities provided laboratory and support services as part of the Isotopes Production and Distribution Program until 1989 when DOE mandated their shutdown (ORNL 1990). These facilities performed diverse research and developmental experiments in support of isotopes production. As a result of the many years of operations, various projects, and final cessation of operations, production was followed by inclusion into the surveillance and maintenance (S&M) project for eventual decontamination and decommissioning (D&D). The process for D&D and final dismantlement of facilities requires that the known contaminants of concern (COCs) be evaluated and quantified and to identify and quantify any additional contaminants in order to satisfy the waste acceptance criteria requirements for the desired disposal pathway. Known facility contaminants include, but are not limited to, asbestos-containing material (ACM), radiological contaminants, and chemical contaminants including polychlorinated biphenyls (PCBs) and metals.

Weaver, Phyllis C

2013-12-12T23:59:59.000Z

150

Effects of plant density and row spacing on the ratooning of sorghum (Sorghum bicolor (L.) Moench)  

E-Print Network [OSTI]

effect on percent of plants surviving 4 weeks after cutting at College Station. . 105 62. 64 65. Effect of row spacing on percent of surviving plants of ATx378 x TAM428 and ATx378 x Tx2536 at College Station, 4 weeks after cutting . . . . 106... TAM428 and ATx378 x Tx2536 4 weeks after cutting . . . . 110 Number of reporductive tillers per unit area in the ratoon at College Station Effect of population on number of reproductive tillers in the ratoon for the combined loca- t. 1ons . 111...

Priwin A., Ricardo A

2012-06-07T23:59:59.000Z

151

Influence of row spacing on performance of short-season cotton genotypes  

E-Print Network [OSTI]

. Hand har- vests were made at 121, 137, and 174 days after planting (DAP) on 1 Mention of commercial products or trade names is for identifica- tion only and does not imply endorsement by the author or Texas A&M University. 15 3-m row sections.../ha. Percentage maturity was determined at 121 ard 137 days after planting. At each date, differences among spacing treatments were non-significant. Genotype differences were significant at both dates; at 121 DAP, the long-season check variety (genotype 10...

Abreu, Jose?

2012-06-07T23:59:59.000Z

152

Spacing of Rows in Corn and Its Effect Upon Grain Yield.  

E-Print Network [OSTI]

, was added as a third distribution. The results for the five-year period are shown in the follnn.ing table. S,PACING ROWS IN CORN AND EFFECT UPON GRAIN YIELD 9 hould be pointed out that the low ~ield from the six-foot spacing I2 mss, undouhteclly, due... comparable. It is noticeable that the grain yield each pear is consistently in favor of the three-foot spacing, as is also the average for the whole period of five years. These results indicate that the actual yield in grain secure:l from the three-foot...

Conner, A. B. (Arthur Benjamin)

1918-01-01T23:59:59.000Z

153

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, Universit de

154

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.

155

Determination of the Number of Tube Rows to Obtain Closure for Volume Averaging Theory Based Model of Fin-and-Tube Heat Exchangers  

E-Print Network [OSTI]

Fig. 3 Journal of Heat Transfer Grid system for 2-row caseDomain and Grid System. Since the fin-and- tube heat

Zhou, Feng; Hansen, Nicholas E; Geb, David J; Catton, Ivan

2011-01-01T23:59:59.000Z

156

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

157

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

158

Core design study of a supercritical light water reactor with double row fuel rods  

SciTech Connect (OSTI)

An equilibrium core for supercritical light water reactor has been designed. A novel type of fuel assembly with dual rows of fuel rods between water rods is chosen and optimized to get more uniform assembly power distributions. Stainless steel is used for fuel rod cladding and structural material. Honeycomb structure filled with thermal isolation is introduced to reduce the usage of stainless steel and to keep moderator temperature below the pseudo critical temperature. Water flow scheme with ascending coolant flow in inner regions is carried out to achieve high outlet temperature. In order to enhance coolant outlet temperature, the radial power distributions needs to be as flat as possible through operation cycle. Fuel loading pattern and control rod pattern are optimized to flatten power distribution at inner regions. Axial fuel enrichment is divided into three parts to control axial power peak, which affects maximum cladding surface temperature. (authors)

Zhao, C.; Wu, H.; Cao, L.; Zheng, Y. [School of Nuclear Science and Technology, Xi'an Jiaotong Univ., No. 28, Xianning West Road, Xi'an, ShannXi, 710049 (China); Yang, J.; Zhang, Y. [China Nuclear Power Technology Research Inst., Yitian Road, ShenZhen, GuangDong, 518026 (China)

2012-07-01T23:59:59.000Z

159

Selection Process  

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

Selection Process Selection Process Fellowships will be awarded based on academic excellence, relevance of candidate's research to the laboratory mission in fundamental nuclear...

160

Seismic waveform classification for automatic detection and improved location of volcanic events Charlotte Rowe and Jonathan MacCarthy, Los Alamos National Laboratory, Los Alamos, New  

E-Print Network [OSTI]

Charlotte Rowe and Jonathan MacCarthy, Los Alamos National Laboratory, Los Alamos, New Mexico, U, Menlo Park, California, U.S.A. Flora Giudicepietro, Osservatorio Vesuviano, Naples, Italy Richard: Dr. Charlotte Rowe EES-11, M.S. D-408 Los Alamos National Laboratory Los Alamos, new Mexico 87545 U

Rowe, Charlotte

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161

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 AlSiC 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 5080 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 575C 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

162

Jeffrey R. Row Environment and Resource Studies, University of Waterloo, Waterloo, Ontario, Canada, N2L 3G1  

E-Print Network [OSTI]

, N2L 3G1 Website: http://jeffrow.ca · Email: jeff.row@me.com · Phone: 1-416-399-3066 1 Education 2006 and population structure of foxsnakes across spatial and temporal scales. 2003-2005 M.Sc. Biology, University (Lampropeltis triangulum). 1997-2001 B.Sc. Environmental Biology, Queen's University, Kingston, Ontario. 2

Row, Jeffrey R.

163

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

164

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

165

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

166

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

167

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

168

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

169

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

170

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

171

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

172

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

173

First principles investigation of the initial stage of H-induced missing-row reconstruction of Pd(110) surface  

SciTech Connect (OSTI)

The pathway of H diffusion that will induce the migration of Pd atom is investigated by employing first principles calculations based on density functional theory to explain the origin of missing-row reconstruction of Pd(110).The calculated activation barrier and the H-induced reconstruction energy reveal that the long bridge-to-tetrahedral configuration is the energetically favored process for the initial stage of reconstruction phenomenon. While the H diffusion triggers the migration of Pd atom, it is the latter process that significantly contributes to the activated missing-row reconstruction of Pd(110). Nonetheless, the strong interaction between the diffusing H and the Pd atoms dictates the occurrence of reconstructed surface.

Padama, Allan Abraham B. [Department of Applied Physics, Osaka University, Suita, Osaka 565-0871 (Japan); Kasai, Hideaki, E-mail: kasai@dyn.ap.eng.osaka-u.ac.jp [Department of Applied Physics, Osaka University, Suita, Osaka 565-0871 (Japan); Center for Atomic and Molecular Technologies, Osaka University, Suita, Osaka 565-0871 (Japan)

2014-06-28T23:59:59.000Z

174

Double row loop-coil configuration for high-speed electrodynamic maglev suspension, guidance, propulsion and guideway directional switching  

DOE Patents [OSTI]

A stabilization and propulsion system are disclosed comprising a series of loop-coils arranged in parallel rows wherein two rows combine to form one of two magnetic rails. Levitation and lateral stability are provided when the induced field in the magnetic rails interacts with the superconducting magnets mounted on the magnetic levitation vehicle. The loop-coils forming the magnetic rails have specified dimensions and a specified number of turns and by constructing differently these specifications, for one rail with respect to the other, the angle of tilt of the vehicle can be controlled during directional switching. Propulsion is provided by the interaction of a traveling magnetic wave associated with the coils forming the rails and the superconducting magnets on the vehicle. 12 figs.

He, J.; Rote, D.M.

1996-05-21T23:59:59.000Z

175

The effects of agricultural land use patterns on pollutant runoff from watersheds: rangeland/pastureland and row cropping  

E-Print Network [OSTI]

M University in partial fu! fillment of the requirements for the degree of MASTER OF AGRICULTURE December 1995 Rangeland Ecology and Management Range Science THE EFFECTS OF AGRICULTURAL LAND USE PATTERNS ON POLLUTANT RUNOFF FROM WATERSHEDS: RANGELAND.../PASTUREI ttND AND ROW CROPPING A PROFESSIONAL PAPER by Andrew A. Jayne IV Approved as to style and content by: Way T. amilton (Committee Chair) Thomas L. Thurow (Member) Robert D. Baker (Member) Robert Whitson (Department Head) December 1995...

Jayne, Andrew A.

1995-01-01T23:59:59.000Z

176

Effect of tillage systems, row configuration-spacing and plant population on soil physical properties, evapotranspiration and dryland sorghum yields  

E-Print Network [OSTI]

University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1981 Major Subject: Soil Science EFFECT OF TILLAGE SYSTEMS, ROW CONFIGURATION-SPACING AND PLANT POPULATION ON SOIL PHYSICAL PROPERTIES& EVAPOTRANSPIRATION... Configuration-Spacing and Plant. Popular. ion on Soil Physical Properties, Evapotranspiration and Dryland Sorghum Yields. (December 1981). Jaime Roel Salinas-Garcfa, B. S. , Universidad Autdnoma de Nuevo Leon, Mexico. Co-Chairmen of Advisory Committee: Dr...

Salinas-Garcia, Jaime Roel

1981-01-01T23:59:59.000Z

177

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

178

Current and future industrial energy service characterizations. Volume III. Energy data on 15 selected states' manufacturing subsector  

SciTech Connect (OSTI)

An examination is made of the current and future energy demands, and uses, and cost to characterize typical applications and resulting services in the US and industrial sectors of 15 selected states. Volume III presents tables containing data on selected states' manufacturing subsector energy consumption, functional uses, and cost in 1974 and 1976. Alabama, California, Illinois, Indiana, Louisiana, Michigan, Missouri, New Jersey, New York, Ohio, Oregon, Pennsylvania, Texas, West Virginia, and Wisconsin were chosen as having the greatest potential for replacing conventional fuel with solar energy. Basic data on the quantities, cost, and types of fuel and electric energy purchased by industr for heat and power were obtained from the 1974 and 1976 Annual Survey of Manufacturers. The specific indutrial energy servic cracteristics developed for each selected state include. 1974 and 1976 manufacturing subsector fuels and electricity consumption by 2-, 3-, and 4-digit SIC and primary fuel (quantity and relative share); 1974 and 1976 manufacturing subsector fuel consumption by 2-, 3-, and 4-digit SIC and primary fuel (quantity and relative share); 1974 and 1976 manufacturing subsector average cost of purchsed fuels and electricity per million Btu by 2-, 3-, and 4-digit SIC and primary fuel (in 1976 dollars); 1974 and 1976 manufacturing subsector fuels and electric energy intensity by 2-, 3-, and 4-digit SIC and primary fuel (in 1976 dollars); manufacturing subsector average annual growth rates of (1) fuels and electricity consumption, (2) fuels and electric energy intensity, and (3) average cost of purchased fuels and electricity (1974 to 1976). Data are compiled on purchased fuels, distillate fuel oil, residual ful oil, coal, coal, and breeze, and natural gas. (MCW)

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

1980-11-01T23:59:59.000Z

179

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)(22)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, Universit de

180

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

Note: This page contains sample records for the topic "row selected 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

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.

182

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

183

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

184

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 m 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

185

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

186

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.

187

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 Rémy 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

188

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

189

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

190

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, Universit de

191

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, Universit de

192

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, Universit de

193

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

194

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 2100C) 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

195

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

196

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

197

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

198

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

199

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

200

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

Note: This page contains sample records for the topic "row selected 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

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

202

Heat transfer from combustion gases to a single row of closely spaced tubes in a swirl crossflow Stirling engine heater  

SciTech Connect (OSTI)

This paper describes an experimental program to determine the heat-transfer characteristics of a combustor and heat-exchange system in a hybrid solar receiver which utilizes a Stirling engine. The system consists of a swirl conbustor with a crossflow heat exchanger composed of a single row of 48 closely spaced curved tubes. In the present study, heat-transfer characteristics of the combustor/heat-exchanger system without a Stirling engine have been studied over a range of operating conditions and output levels using water as the working fluid. Non-dimensional heat-transfer coefficients based on total heat transfer have been obtained and are compared with available literature data. The results show significantly enhanced heat transfer for the present geometry and test conditions. Also, heat transfer along the length of the tubes is found to vary, the effect depending upon test condition.

Bankston, C.P.; Back, L.H.

1982-02-01T23:59:59.000Z

203

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...

204

ROW BY ROW METHODS FOR SEMIDEFINITE PROGRAMMING ...  

E-Print Network [OSTI]

Apr 28, 2009 ... form a positive definite mm matrix M, where m is the number of constraints in ..... partition the vertices of a graph into two sets so that the sum of the ...... were written in C Language MEX-files in MATLAB (Release 7.3.0), and...

2009-04-28T23:59:59.000Z

205

Row by row methods for semidefinite programming  

E-Print Network [OSTI]

Apr 28, 2009 ... ... is supported by the Mathematical Programming Society and by the Optimization Technology Center. Mathematical Programming Society.

Zaiwen Wen

2009-04-28T23:59:59.000Z

206

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 1) surface and electronic structures of a graphene layer on top of the (2 2) reconstruction of the SiC (0001) surface characteristic of graphene. A small graphene-substrate interaction remains in agreement with scanning tunneling

Paris-Sud XI, Universit de

207

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

208

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, Universit de

209

Electronic Stopping Powers For Heavy Ions In SiC And SiO2. | EMSL  

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 Zirconia Nanoparticles as Selective SorbentsEMSL| EMSLStopping Powers

210

ABOUT THE TALK: Has anyone ever put the whole picture of Cannery Row, Monterey, together for you? Don't feel alone if that's the case. ere are few resources easily accessed to get to it all. e PowerPoint archival photographic  

E-Print Network [OSTI]

PowerPoint archival photographic historical presentation by Cannery Row historian Michael Kenneth Hemp: Berkeley born and UC Educated, Michael Kenneth Hemp became Cannery Row's career historian in a scenario Friends at (831) 771-4464 PHOTO BY RALPH W. SCHARDT An evening with Cannery Row Historian Michael Hemp

McPhee-Shaw, Erika

211

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

212

Tree SelectionTree Selection Why is selection important?  

E-Print Network [OSTI]

There are lists from different locations. Utility company Local tree board Native trees #12;Utility Company their list. #12;Tree Selection Style I Process Pick up trees Plant them #12;This could be the result! Is this tree right for this location? #12;Tree Selection Style II Let's try selection method 2. #12;Tree List

213

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

214

Candidate Selection Instrument  

Broader source: Energy.gov [DOE]

The candidate selection instrument is designed to take the guesswork out of selecting candidates for the various career development programs of interest. The instrument is straightforward and...

215

Undergraduate Program Selection Process  

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

Selection Process Undergraduate Program Selection Process Point your career towards Los Alamos Lab: work with the best minds on the planet in an inclusive environment that is rich...

216

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

217

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

218

Report on the deuterium retention in CVD coated W on SiC in support of the Ultramet Companys 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 400C in the Idaho National Laboratorys (INLs) 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 400C 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 400C. This thin W layer (0.0005-inch ~ 13m 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 400C 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

219

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

220

Optical Broadband Angular Selectivity  

E-Print Network [OSTI]

Light selection based purely on the angle of propagation is a long-standing scientific challenge. In angularly selective systems, however, the transmission of light usually also depends on the light frequency. We tailored ...

Shen, Yichen

Note: This page contains sample records for the topic "row selected 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

Graduate Program Selection Process  

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

Selection Process Graduate Program Selection Process Point your career towards Los Alamos Lab: work with the best minds on the planet in an inclusive environment that is rich in...

222

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

223

Photo-ionization of aluminum in a hot cavity for the selective production of exotic species project  

SciTech Connect (OSTI)

SPES (Selective Production of Exotic Species) is an Isotope Separation On-Line (ISOL) based accelerator facility that will be built in the Legnaro-Istituto Nazionale di Fisica Nucleare (INFN) Laboratory (Italy), intended to provide intense neutron-rich radioactive ion beams obtained by proton-induced fission of a uranium carbide (UCx) target. Besides this main target material, silicon carbide (SiC) will be the first to be used to deliver p-rich beams. This target will also validate the functionality of the SPES facility with aluminum beam as result of impinging SiC target with proton beam. In the past, off line studies on laser photoionization of aluminum have been performed in Pavia Spectroscopy Laboratory and in Laboratori Nazionali di Legnaro; a XeCl excimer laser was installed in order to test the laser ionization in the SPES hot cavity. With the new Wien filter installed a better characterization of the ionization process in terms of efficiency was performed and results are discussed.

Scarpa, D., E-mail: Daniele.scarpa@lnl.infn.it; Corradetti, S.; Manzolaro, M.; Vasquez, J.; Calderolla, M.; Rossignoli, M.; Monetti, A.; Andrighetto, A.; Prete, G. [INFN-Laboratori Nazionali di Legnaro, Viale dellUniversit 2, Legnaro (PD) (Italy)] [INFN-Laboratori Nazionali di Legnaro, Viale dellUniversit 2, Legnaro (PD) (Italy); Makhathini, L. [iThemba LABS, Cape Town (South Africa)] [iThemba LABS, Cape Town (South Africa); Tomaselli, A. [Dipartimento di Ingegneria Elettronica, Universit di Pavia, Via Ferrata 1, Pavia (Italy)] [Dipartimento di Ingegneria Elettronica, Universit di Pavia, Via Ferrata 1, Pavia (Italy); Grassi, D. [Dipartimento di Chimica Generale, Universit di Pavia, Via Taramelli 12, Pavia (Italy)] [Dipartimento di Chimica Generale, Universit di Pavia, Via Taramelli 12, Pavia (Italy)

2014-02-15T23:59:59.000Z

224

Thermal performance evaluation of SiC power devices packaging A.GRACIA, S.AZZOPARDI, E.WOIRGARD  

E-Print Network [OSTI]

impedance and the thermal resistance and also finite elements simulations. The correlation between methods. 2 High temperature device packaging concepts The selection of materials for a high temperature package (figure 1) is based on a combination of material properties: conductivity, Coefficient of Thermal

Boyer, Edmond

225

Selective area growth of Bernal bilayer epitaxial graphene on 4H-SiC (0001) substrate by electron-beam irradiation  

SciTech Connect (OSTI)

We report selective area growth of large area homogeneous Bernal stacked bilayer epitaxial graphene (BLEG) on 4H-SiC (0001) substrate by electron-beam irradiation. Sublimation of Si occurs by energetic electron irradiations on SiC surface via breaking of SiC bonds in the localized region, which allows the selective growth of graphene. Raman measurements ensure the formation of homogeneous BLEG with weak compressive strain of ?0.08%. The carrier mobility of large area BLEG is ?5100?cm{sup 2}?V{sup ?1}?s{sup ?1} with a sheet carrier density of 2.2??10{sup 13}?cm{sup ?2}. Current-voltage measurements reveal that BLEG on 4H-SiC forms a Schottky junction with an operation at mA level. Our study reveals that the barrier height at the Schottky junction is low (?0.58?eV) due to the Fermi-level pinning above the Dirac point.

Dharmaraj, P.; Jeganathan, K., E-mail: kjeganathan@yahoo.com [Centre for Nanoscience and Nanotechnology, School of Physics, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu (India); Parthiban, S.; Kwon, J. Y. [School of Integrated Technology and Yonsei Institute of Convergence Technology, Yonsei University, Yeonsu-gu, Incheon 406-840 (Korea, Republic of); Gautam, S.; Chae, K. H. [Advanced Analysis Center, Korea Institute of Science and Technology, Seoul 136-791 (Korea, Republic of); Asokan, K. [Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110 067 (India)

2014-11-03T23:59:59.000Z

226

SOURCE SELECTION INFORMATION -  

Office of Environmental Management (EM)

on Energy and Water Development U.S. House of Representatives The Honorable Lamar Alexander Ranking Member SOURCE SELECTION INFORMATION - SEE FEDERAL ACQUISITION...

227

SOURCE SELECTION INFORMATION -  

Energy Savers [EERE]

on Energy and Water Development U.S. House of Representatives The Honorable Lamar Alexander SOURCE SELECTION INFORMATION - SEE FEDERAL ACQUISITION REGULATION (FAR)...

228

Frequency selective infrared sensors  

SciTech Connect (OSTI)

A frequency selective infrared (IR) photodetector having a predetermined frequency band. The exemplary frequency selective photodetector includes: a dielectric IR absorber having a first surface and a second surface substantially parallel to the first surface; an electrode electrically coupled to the first surface of the dielectric IR absorber; and a frequency selective surface plasmonic (FSSP) structure formed on the second surface of the dielectric IR absorber. The FSSP structure is designed to selectively transmit radiation in the predetermined frequency band that is incident on the FSSP structure substantially independent of the angle of incidence of the incident radiation on the FSSP structure.

Davids, Paul; Peters, David W

2014-11-25T23:59:59.000Z

229

Frequency selective infrared sensors  

DOE Patents [OSTI]

A frequency selective infrared (IR) photodetector having a predetermined frequency band. The exemplary frequency selective photodetector includes: a dielectric IR absorber having a first surface and a second surface substantially parallel to the first surface; an electrode electrically coupled to the first surface of the dielectric IR absorber; and a frequency selective surface plasmonic (FSSP) structure formed on the second surface of the dielectric IR absorber. The FSSP structure is designed to selectively transmit radiation in the predetermined frequency band that is incident on the FSSP structure substantially independent of the angle of incidence of the incident radiation on the FSSP structure.

Davids, Paul; Peters, David W

2013-05-28T23:59:59.000Z

230

SELECTING INFORMATION TECHNOLOGY SECURITY  

E-Print Network [OSTI]

be selected and used within the organization's overall program to man age the design, development, and maintenance of its IT security infra structure, and to protect the confiden tiality, integrity objectives and to protect information. Guide to Selecting Information Technology Security Products NIST

231

Selectable fragmentation warhead  

SciTech Connect (OSTI)

This report discusses a selectable fragmentation warhead which is capable of producing a predetermined number of fragments from a metal plate, and accelerating the fragments toward a target. A first explosive located adjacent to the plate is detonated at selected number of points by laser-driven slapper detonators. In one embodiment, a smoother-disk and a second explosive, located adjacent to the first explosive, serve to increase acceleration of the fragments toward a target. The ability to produce a selected number of fragments allows for effective destruction of a chosen target.

Bryan, C.S.; Paisley, D.L.; Montoya, N.I.; Stahl, D.B.

1992-12-31T23:59:59.000Z

232

Solar selective absorption coatings  

DOE Patents [OSTI]

A new class of solar selective absorption coatings are disclosed. These coatings comprise a structured metallic overlayer such that the overlayer has a sub-micron structure designed to efficiently absorb solar radiation, while retaining low thermal emissivity for infrared thermal radiation. A sol-gel layer protects the structured metallic overlayer from mechanical, thermal, and environmental degradation. Processes for producing such solar selective absorption coatings are also disclosed.

Mahoney, Alan R. (Albuquerque, NM); Reed, Scott T. (Albuquerque, NM); Ashley, Carol S. (Albuquerque, NM); Martinez, F. Edward (Horseheads, NY)

2003-10-14T23:59:59.000Z

233

Solar selective absorption coatings  

DOE Patents [OSTI]

A new class of solar selective absorption coatings are disclosed. These coatings comprise a structured metallic overlayer such that the overlayer has a sub-micron structure designed to efficiently absorb solar radiation, while retaining low thermal emissivity for infrared thermal radiation. A sol-gel layer protects the structured metallic overlayer from mechanical, thermal, and environmental degradation. Processes for producing such solar selective absorption coatings are also disclosed.

Mahoney, Alan R. (Albuquerque, NM); Reed, Scott T. (Albuquerque, NM); Ashley, Carol S. (Albuquerque, NM); Martinez, F. Edward (Horseheads, NY)

2004-08-31T23:59:59.000Z

234

Spectrally selective glazings  

SciTech Connect (OSTI)

Spectrally selective glazing is window glass that permits some portions of the solar spectrum to enter a building while blocking others. This high-performance glazing admits as much daylight as possible while preventing transmission of as much solar heat as possible. By controlling solar heat gains in summer, preventing loss of interior heat in winter, and allowing occupants to reduce electric lighting use by making maximum use of daylight, spectrally selective glazing significantly reduces building energy consumption and peak demand. Because new spectrally selective glazings can have a virtually clear appearance, they admit more daylight and permit much brighter, more open views to the outside while still providing the solar control of the dark, reflective energy-efficient glass of the past. This Federal Technology Alert provides detailed information and procedures for Federal energy managers to consider spectrally selective glazings. The principle of spectrally selective glazings is explained. Benefits related to energy efficiency and other architectural criteria are delineated. Guidelines are provided for appropriate application of spectrally selective glazing, and step-by-step instructions are given for estimating energy savings. Case studies are also presented to illustrate actual costs and energy savings. Current manufacturers, technology users, and references for further reading are included for users who have questions not fully addressed here.

NONE

1998-08-01T23:59:59.000Z

235

High Selectivity Oxygen Delignification  

SciTech Connect (OSTI)

Project Objective: The objectives of this project are as follows: (1) Examine the physical and chemical characteristics of a partner mill pre- and post-oxygen delignified pulp and compare them to lab generated oxygen delignified pulps; (2) Apply the chemical selectivity enhancement system to the partner pre-oxygen delignified pulps under mill conditions (with and without any predetermined amounts of carryover) to determine how efficiently viscosity is preserved, how well selectivity is enhanced, if strength is improved, measure any yield differences and/or bleachability differences; and (3) Initiate a mill scale oxygen delignification run using the selectivity enhancement agent, collect the mill data, analyze it, and propose any future plans for implementation.

Lucian A. Lucia

2005-11-15T23:59:59.000Z

236

Selected Topics in Column Generation  

E-Print Network [OSTI]

Dec 2, 2002 ... Page 1. Selected Topics in Column Generation. Marco E. Lbbecke ... is an ever recurring concept in our selected topics. OR/MS Subject...

2002-12-02T23:59:59.000Z

237

Solar selective surfaces  

SciTech Connect (OSTI)

Postformable solar selective coatings are disclosed for use on substrates such as aluminum. The coatings use a finely divided black inherently selective spinel pigment such as Co3O4, CuCr2O4 or CuxCo3-xO4 where X is 0.03 to 0.3 and preferably 0.10 to 0.30. The binders are soluble copolymers of vinylidene fluoride or blends thereof or vinylidene fluoride with a copolymer of methyl methacrylate.

Van Buskirk, O.R.

1982-01-12T23:59:59.000Z

238

Patient radiation dose in prospectively gated axial CT coronary angiography and retrospectively gated helical technique with a 320-detector row CT scanner  

SciTech Connect (OSTI)

Purpose: The aim of this study was to evaluate radiation dose to patients undergoing computed tomography coronary angiography (CTCA) for prospectively gated axial (PGA) technique and retrospectively gated helical (RGH) technique. Methods: Radiation doses were measured for a 320-detector row CT scanner (Toshiba Aquilion ONE) using small sized silicon-photodiode dosimeters, which were implanted at various tissue and organ positions within an anthropomorphic phantom for a standard Japanese adult male. Output signals from photodiode dosimeters were read out on a personal computer, from which organ and effective doses were computed according to guidelines published in the International Commission on Radiological Protection Publication 103. Results: Organs that received high doses were breast, followed by lung, esophagus, and liver. Breast doses obtained with PGA technique and a phase window width of 16% at a simulated heart rate of 60 beats per minute were 13 mGy compared to 53 mGy with RGH technique using electrocardiographically dependent dose modulation at the same phase window width as that in PGA technique. Effective doses obtained in this case were 4.7 and 20 mSv for the PGA and RGH techniques, respectively. Conversion factors of dose length product to the effective dose in PGA and RGH were 0.022 and 0.025 mSv mGy{sup -1} cm{sup -1} with a scan length of 140 mm. Conclusions: CTCA performed with PGA technique provided a substantial effective dose reduction, i.e., 70%-76%, compared to RGH technique using the dose modulation at the same phase windows as those in PGA technique. Though radiation doses in CTCA with RGH technique were the same level as, or some higher than, those in conventional coronary angiography (CCA), the use of PGA technique reduced organ and effective doses to levels less than CCA except for breast dose.

Seguchi, Shigenobu; Aoyama, Takahiko; Koyama, Shuji; Fujii, Keisuke; Yamauchi-Kawaura, Chiyo [Graduate School of Medicine, Nagoya University, Daikominami, Higashi-ku, Nagoya 461-8673 (Japan) and Department of Medical Technology, Nagoya Daini Red Cross Hospital, Myouken-chou, Showa-ku, Nagoya 466-8650 (Japan); Graduate School of Medicine, Nagoya University, Daikominami, Higashi-ku, Nagoya 461-8673 (Japan); Section of Radiological Protection, National Institute of Radiological Sciences, Anagawa, Inage-ku, Chiba 263-8555 (Japan); Graduate School of Medicine, Nagoya University, Daikominami, Higashi-ku, Nagoya 461-8673 (Japan)

2010-11-15T23:59:59.000Z

239

antimony selective media: Topics by E-print Network  

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

file server. Figure 1 shows a screen dump of the brows... Lawrence A. Rowe; Brian C. Smith 1992-01-01 70 Social Media Success Guide Biology and Medicine Websites Summary: % of...

240

Haul truck selection  

SciTech Connect (OSTI)

Haul truck selection involves the consideration of a vast amount of information before the final decision is made. This judgment should not be made simply on the choice of power train, because to go for mechanical or electric drive has always been a case of horses for courses. Some sites are just better suited to electric drive. It could, for instance, be argued that coming out of deep mines with long haul roads is an ideal application for electric drive, but negotiating steep down gradients fully laden would favor mechanical drive. Engine selection on the other hand is easier to define but normally is the direct responsibility of the customer, with the truck manufacturer acting as impartial adviser. Understandably each will offer engines it believes to be well matched to the truck and to the site application requirements. Long term mine planning with careful attention to future equipment requirements is the key to all equipment purchases. This paper discusses the various considerations.

Porter, D.

1993-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "row selected 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

Selecting a PV battery  

SciTech Connect (OSTI)

The primary goal for all photovoltaic systems must be to provide value. Since the total life cycle cost of a system will depend on the type of battery installed, the impact of proper battery selection is considerable. For the designer, selecting an ideal battery can be confusing because he seldom has a reliable frame of reference with which to compare options. This article is an attempt to provide that frame of reference by describing a specific battery design which, for many photovoltaic applications, will represent the best value option. Other battery types can then simply be contrasted to this ''reference battery'' to see if they provide better or worse overall value in any particular application.

Jones, W.

1983-01-01T23:59:59.000Z

242

Bolt Manufacture: Process Selection  

E-Print Network [OSTI]

file · Selective Laser Sintering (SLS) 3 D P i ti· 3-D Printing · Light Engineered Net Shaping (LENS Processes and Systems Prof. J.S. Colton © GIT 2009 20 #12;3D Printing Process (Soligen) ME 6222: Manufacturing Processes and Systems Prof. J.S. Colton © GIT 2009 21 #12;3D Printing Head (Soligen)3D Printing

Colton, Jonathan S.

243

Technology Selection Process  

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 AdministrationcontrollerNanocrystallineForeignTechnology-Selection-Process Sign In About | Careers |

244

Selective ion source  

DOE Patents [OSTI]

A ion source is described wherein selected ions maybe extracted to the exclusion of unwanted ion species of higher ionization potential. Also described is a method of producing selected ions from a compound, such as P{sup +} from PH{sub 3}. The invention comprises a plasma chamber, an electron source, a means for introducing a gas to be ionized by electrons from the electron source, means for limiting electron energy from the electron source to a value between the ionization energy of the selected ion species and the greater ionization energy of an unwanted ion specie, and means for extracting the target ion specie from the plasma chamber. In one embodiment, the electrons are generated in a plasma cathode chamber immediately adjacent to the plasma chamber. A small extractor draws the electrons from the plasma cathode chamber into the relatively positive plasma chamber. The energy of the electrons extracted in this manner is easily controlled. The invention is particularly useful for doping silicon with P{sup +}, As{sup +}, and B{sup +} without the problematic presence of hydrogen, helium, water, or carbon oxide ions. Doped silicon is important for manufacture of semiconductors and semiconductor devices. 6 figs.

Leung, K.N.

1996-05-14T23:59:59.000Z

245

Selective ion source  

DOE Patents [OSTI]

A ion source is described wherein selected ions maybe extracted to the exclusion of unwanted ion species of higher ionization potential. Also described is a method of producing selected ions from a compound, such as P.sup.+ from PH.sub.3. The invention comprises a plasma chamber, an electron source, a means for introducing a gas to be ionized by electrons from the electron source, means for limiting electron energy from the electron source to a value between the ionization energy of the selected ion species and the greater ionization energy of an unwanted ion specie, and means for extracting the target ion specie from the plasma chamber. In one embodiment, the electrons are generated in a plasma cathode chamber immediately adjacent to the plasma chamber. A small extractor draws the electrons from the plasma cathode chamber into the relatively positive plasma chamber. The energy of the electrons extracted in this manner is easily controlled. The invention is particularly useful for doping silicon with P.sup.+, AS.sup.+, and B.sup.+ without the problematic presence of hydrogen, helium, water, or carbon oxide ions. Doped silicon is important for manufacture of semiconductors and semiconductor devices.

Leung, Ka-Ngo (Hercules, CA)

1996-01-01T23:59:59.000Z

246

4.8 Row Space  

E-Print Network [OSTI]

Feb 16, 2007 ... For Problems 2631, find the change-of-basis matrix PB?C from the given basis C to the given basis B of the vector space V . 26. V , B, and C...

PRETEX (Halifax NS) #1 1054 1999 Mar 05 10:59:16

2010-02-12T23:59:59.000Z

247

Katherine Rowe September 29, 2006  

E-Print Network [OSTI]

as a parking/traffic area and to manage stormwater. Components & Function There are several types of porous of open-graded gravel and crushed stone (EPA, Sept. 1999). This base serves as a reservoir for stormwater from moving into the soil bed. Essentially, "porous pavement infiltrates and treats rainwater where

Rosemond, Amy Daum

248

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, SiCLABs new power switches can also be used in wind turbines, railways, and other smart grid applications.

None

2011-12-31T23:59:59.000Z

249

Undergraduate Program Selection Process  

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 Ferromagnetism in Layeredof2014National Nuclear SecuritySalary StructureSelection

250

All Selected Projects  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergy Cooperation |South42.2 (April 2012) 1 Documentation and Approval ofAll Active2.1Selected

251

Microsoft Word - Site Selection  

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 Preliminary Needs Assessment MarchSelection One of the very

252

Graduate Program Selection Process  

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 with Big Sky LearningGet AssistanceCatalytic Sites .GraduateSelection Process

253

Vegetables: Selection, Care, Cooking.  

E-Print Network [OSTI]

and blemishes and decay. For the least waste in paring, select potatoes that are regular in shape and have shallow eyes. Avoid potatoes that show green 1 color on some part of the surface; the green portions taste bitter. One pound of fresh po- , tatoes... aging. daily food guide for Texans, three kinds of Other vegetables include all those that are vegetables-green or yellow, other vegetables not green or yellow, and supply other needed and Irish or sweet potatoes are good nutrition vitamins...

Reasonover, Frances; Mason, Louise; Tribble, Marie; Cox, Maeona

1958-01-01T23:59:59.000Z

254

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

255

Sulfur-Free Selective Pulping  

E-Print Network [OSTI]

A joint research effort is being conducted on ways to produce cost-effective pulping catalysts from lignin. This project addresses improving selectivities and reducing the levels of sulfur chemicals used in pulping. Improved selectivity means...

Dimmel, D. R.; Bozell, J. J.

256

Hydrogen-selective membrane  

DOE Patents [OSTI]

A hydrogen-selective membrane comprises a tubular porous ceramic support having a palladium metal layer deposited on an inside surface of the ceramic support. The thickness of the palladium layer is greater than about 10 {micro}m but typically less than about 20 {micro}m. The hydrogen permeation rate of the membrane is greater than about 1.0 moles/m{sup 2}s at a temperature of greater than about 500 C and a transmembrane pressure difference of about 1,500 kPa. Moreover, the hydrogen-to-nitrogen selectivity is greater than about 600 at a temperature of greater than about 500 C and a transmembrane pressure of about 700 kPa. Hydrogen can be separated from a mixture of gases using the membrane. The method may include the step of heating the mixture of gases to a temperature of greater than about 400 C and less than about 1000 C before the step of flowing the mixture of gases past the membrane. The mixture of gases may include ammonia. The ammonia typically is decomposed to provide nitrogen and hydrogen using a catalyst such as nickel. The catalyst may be placed inside the tubular ceramic support. The mixture of gases may be supplied by an industrial process such as the mixture of exhaust gases from the IGCC process. 9 figs.

Collins, J.P.; Way, J.D.

1995-09-19T23:59:59.000Z

257

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...

258

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

259

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

260

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

Note: This page contains sample records for the topic "row selected 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

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

262

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)

263

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)

264

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

265

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

266

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)

267

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

268

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

269

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

270

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)

271

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

272

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

273

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)

274

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

275

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

276

Program selects proppants  

SciTech Connect (OSTI)

Laboratory-measured proppant flow data must be adjusted prudently to give correct in situ fracture proppant flow capacity data. These in situ data determine the actual performance of the proppant. The well data, fracture geometry, fracture proppant flow capacity, gas price, and proppant cost all determine the selection of an appropriate proppant. For closure stress below 8,000 psi, the choice of either sand or intermediate proppant is affected by all these factors. Thus, intermediate proppant in a well with low closure stress can be more beneficial than sand. A well with closure stress nearing 7,000 psi can use sand and be profitable. Above 8,000 psi closure stress, most experts agree that only intermediate or high strength proppant can be used.

Cheng, M.C.A.

1984-04-30T23:59:59.000Z

277

Multiprocessor switch with selective pairing  

DOE Patents [OSTI]

System, method and computer program product for a multiprocessing system to offer selective pairing of processor cores for increased processing reliability. A selective pairing facility is provided that selectively connects, i.e., pairs, multiple microprocessor or processor cores to provide one highly reliable thread (or thread group). Each paired microprocessor or processor cores that provide one highly reliable thread for high-reliability connect with a system components such as a memory "nest" (or memory hierarchy), an optional system controller, and optional interrupt controller, optional I/O or peripheral devices, etc. The memory nest is attached to a selective pairing facility via a switch or a bus

Gara, Alan; Gschwind, Michael K; Salapura, Valentina

2014-03-11T23:59:59.000Z

278

Clonal Selection based Genetic Algorithm for Workflow Service Selection  

E-Print Network [OSTI]

architecture is the concept that combines this idea, and the basic components making up the so-called "service-oriented service selection of workflows is a very important aspect for service-oriented systems. The selection problem than standard genetic algorithm. I. INTRODUCTION Service-oriented computing is seen as the de

Ludwig, Simone

279

Ex Ante Selection of Disputes for Litigation  

E-Print Network [OSTI]

While selection effects have important implications for empirical studies of the litigation process, existing theories of case selection are incomplete. Existing theories focus on "ex post selection" - selection resulting from choices made...

Drahozal, Christopher R.

2004-01-01T23:59:59.000Z

280

Guidance on site selection for  

E-Print Network [OSTI]

harvestingbrash materialfollowingtimber harvestingto supply biomass for heat and power generation. A numberGuidance on site selection for brash removal Forest Research, May 2009 The Research Agency SELECTION FOR BRASH REMOVAL | Forest Research | May 09 #12;Brash Removal Background Interest is growingin

Note: This page contains sample records for the topic "row selected 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

STANDARD OPERATING PROCEDURES Site Selection  

E-Print Network [OSTI]

IMPROVE STANDARD OPERATING PROCEDURES SOP 126 Site Selection Date Last Modified Modified by: 09 References none #12;SOP 126: Site Selection 3 1.0 PURPOSE AND APPLICABILITY This standard operating procedure field conditions, and for ease of operation and maintenance. IMPROVE aerosol samplers are generally

Fischer, Emily V.

282

Characterizing Commercial Sites Selected for  

E-Print Network [OSTI]

selected for energy efficiency monitoring Prepared by Hawai`i Natural Energy Institute School of Ocean such as solar thermal absorption chillers, building energy management systems, and advanced lighting. The twoCharacterizing Commercial Sites Selected for Energy Efficiency Monitoring This report presents data

283

Enhancing inductive learning with feature selection and example selection  

E-Print Network [OSTI]

independently and as a combined scheme. We propose a sequential search filter approach called Subset selection using Case-based Relevance APproach (SCRAP) for identifying and eliminating irrelevant features. The SCRAP filter addresses the problem of finding a...

Raman, Baranidharan

2003-01-01T23:59:59.000Z

284

Natural Selection and Geology 230  

E-Print Network [OSTI]

for different amino acids, which form proteins. #12;Selection Genotypes and phenotypes can be ranked of features. e.g. all primates have 5 fingers; apes and humans lack a tail; all tetrapods have similar limb

Kammer, Thomas

285

Selecting Fresh Fruits and Vegetables  

E-Print Network [OSTI]

time. Selecting Fresh Fruits and Vegetables Amanda Scott* E-197 9/08 This publication was sponsored by a grant from the Initiative for Future Agriculture Food Systems, a program of the Cooperative State Research, Education, and Extension Service, which...

Scott, Amanda

2008-09-05T23:59:59.000Z

286

Random Selection for Drug Screening  

SciTech Connect (OSTI)

Sampling is the process of choosing some members out of a group or population. Probablity sampling, or random sampling, is the process of selecting members by chance with a known probability of each individual being chosen.

Center for Human Reliability Studies

2007-05-01T23:59:59.000Z

287

Children's Clothes - Size and Selection.  

E-Print Network [OSTI]

Tooe ZTA245.7 8-1303 B873 no ? \\'3J~3L-~=============i1 ? ? ? CHILDREN'S CLOTHES, SIZE AND SELECTION ? ~========================~ Texas Agricultural Extension Service. The Texas A&M University System. Daniel C. pfannstiel, Director.... College Station, Texas ," ? (BIaBk Pa,ge in O'rigjaal Bulletinl ' / I' j '. ":SIZE AND SELECTION Ann Vanderpoorten and Claudia Kerbel* Preschool and school-age children have special...

Vanderpoorten, Ann; Kerbel, Claudia

1980-01-01T23:59:59.000Z

288

Selection of Equipment for Farms in the Texas High Plains.  

E-Print Network [OSTI]

,986.00 27,161 .OO 23,986.00 26,55tS' i Wage rate of $3.25 per hour Variable costs 7,400.82 7,886.86 6,729.00 7,219.56 6,271.63 7,059.61 6,27 1.63 7,025 '- Annual costs 10,350.77 11,209.35 9,929.29 10,766.80 9,353.83 10,549.80" 9,353.83" 10,43c' l... 54.8 12 54.8 12 j? ' Lister planter row 4 29.8 4 29.8 4 29.8 4 2; r Chisel ft 11 29.5 11 29.5 13 24.9 13 21 ' Shredder row 2 18.7 2 18.7 2 18.7 2 li' Cultivator row 4 40.6 4 40.6 4 40.6 4 Li . Rotary hoe row 4 11.1 4 11.1 4 11.1 4 11 Knife...

Barrick, W. C.; Osborn, J. E.

1971-01-01T23:59:59.000Z

289

Adverse Selection and Advantageous Selection in Insurance Markets  

E-Print Network [OSTI]

. vi LIST OF TABLES ... viii 1. INTRODUCTION .. 1 2. ADVANTAGEOUS SELECTION OF VOLUNTARY PRIVATE HEALTH INSURANCE IN EUROPE: EVIDENCE FROM SHARE .. 3 2.1 Background and Data... .. 6 2.1.1 Institutional Background .. 6 2.1.2 Data Description .. 7 2.2 Empirical Strategy and Results 9 2.3 Conclusion ... 10 3. MULTIPLE DIMENSIONS...

Wu, Xi

2014-08-08T23:59:59.000Z

290

Materials Selection Considerations for Thermal Process Equipment...  

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

Materials Selection Considerations for Thermal Process Equipment: A BestPractices Process Heating Technical Brief Materials Selection Considerations for Thermal Process Equipment:...

291

Method for discriminative particle selection  

DOE Patents [OSTI]

The invention is a method and means for separating ions or providing an ion beam. The invention generates ions of the isotopes to be separated, and then provides a traveling electric potential hill created by a sequential series of quasi static electric potential hills. By regulating the velocity and potential amplitude of the traveling electric potential hill ionized isotopes are selectively positively or negatively accelerated. Since the ionized isotopes have differing final velocities, the isotopes may be collected separately or used to produce an ion beam of a selected isotope.

Post, Richard F. (Walnut Creek, CA)

1992-01-01T23:59:59.000Z

292

Selecting a new water heater  

SciTech Connect (OSTI)

This fact sheet describes the types of water heaters available (storage water heaters, demand water heaters, heat pump water heaters, tankless coil and indirect water heaters, and solar water heaters). The criteria for selection are discussed. These are capacity, efficiency rating, and cost. A resource list is provided for further information.

NONE

1995-03-01T23:59:59.000Z

293

Selected Program Assisting Master Gardner  

E-Print Network [OSTI]

for health. · Use of coal bed methane-produced water for native and non-native grass establishment with selecting native and non-native grasses that produce forage when irrigated with varying levels of coal bed methane-produced water. Future Research · Variety testing of crops for optimal production. · Weed control

Johnson, Eric E.

294

Preparation of gas selective membranes  

DOE Patents [OSTI]

Gas separation membranes which possess improved characteristics as exemplified by selectivity and flux may be prepared by coating a porous organic polymer support with a solution or emulsion of a plasticizer and an organic polymer, said coating being effected at subatmospheric pressures in order to increase the penetration depth of the coating material.

Kulprathipanja, S.; Kulkarni, S.S.; Funk, E.W.

1988-06-14T23:59:59.000Z

295

Preparation of gas selective membranes  

DOE Patents [OSTI]

Gas separation membranes which possess improved characteristics as exemplified by selectivity and flux may be prepared by coating a porous organic polymer support with a solution or emulsion of a plasticizer and an organic polymer, said coating being effected at subatmospheric pressures in order to increase the penetration depth of the coating material.

Kulprathipanja, Santi (Hoffman Estates, IL); Kulkarni, Sudhir S. (Hoffman Estates, IL); Funk, Edward W. (Highland Park, IL)

1988-01-01T23:59:59.000Z

296

Selecting Landscape Plants: Shade Trees  

E-Print Network [OSTI]

Selecting Landscape Plants: Shade Trees Diane Relf, Extension Specialist, Horticulture, Virginia for any landscape plan. They set the stage for the entire home grounds design. The type used. Many will live and enhance the landscape for 100 or more years if they are given a chance. Because

Liskiewicz, Maciej

297

Random Selection for Drug Screening  

SciTech Connect (OSTI)

Simple random sampling is generally the starting point for a random sampling process. This sampling technique ensures that each individual within a group (population) has an equal chance of being selected. There are a variety of ways to implement random sampling in a practical situation.

Center for Human Reliability Studies

2007-05-01T23:59:59.000Z

298

Selective poly-N-substituted glycine antibiotics  

DOE Patents [OSTI]

Antimicrobial peptoid compounds and related compositions as can be used against bacteria effectively and selectively.

Barron, Annelise E; Czyzewski, Ann M; Dohm, Michelle T; Miller, Tyler M; Zuckermann, Tyler M; Patch, James A; Chongsiriwatana, Nathaniel P

2013-05-21T23:59:59.000Z

299

Selection of windmill and site  

SciTech Connect (OSTI)

There are various types of windmills: horizontal, vertical, shaft, hybrid and others. Their merits and demerits were investigated to provide information for the selection of windmills and their design. Multi-wing types are suited to drive pumps, and propeller types are suited for wind-power generation. Since the wind varies in time with respect to its speed and direction, a windmill of any type should be controlled in rotation speed and/or direction. To realize this, auxiliary blades or other wind speed or direction detectors are combined with controllers of the windmills. Propeller-type and Darrieus-type wind-power generator systems were designed (including adequate power generators, power-transmission mechanisms, towers and foundations). Various factors involved in the selection of the site are given in addition to geographical investigations. 5 references.

Takeuchi, T.

1980-01-01T23:59:59.000Z

300

Select Solar | 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 Ltd Jump to: navigation, search Name: SeadovSedgwick,HawaiiSeldoviaSelect Solar

Note: This page contains sample records for the topic "row selected 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

INDIRECT SELECTION IN POULTRY BREEDING WITH SPECIAL  

E-Print Network [OSTI]

INDIRECT SELECTION IN POULTRY BREEDING WITH SPECIAL REFERENCE TO SINGLE GENES P. M?RAT Laboratoire Josas SUMMARY The interest of indirect selection in poultry breeding is discussed, with special

Paris-Sud XI, Université de

302

Visible Spectrum Incandescent Selective Emitter  

SciTech Connect (OSTI)

The purpose of the work performed was to demonstrate the feasibility of a novel bi-layer selective emitter. Selective emitters are incandescent radiant bodies with emissivities that are substantially larger in a selected part of the radiation spectrum, thereby significantly shifting their radiated spectral distribution from that of a blackbody radiating at the same temperature. The major research objectives involved answering the following questions: (1) What maximum VIS/NIR radiant power and emissivity ratios can be attained at 2650 K? (2) What is the observed emitter body life and how does its performance vary with time? (3) What are the design tradeoffs for a dual heating approach in which both an internally mounted heating coil and electrical resistance self-heating are used? (4) What are the quantitative improvements to be had from utilizing a bi-layer emitter body with a low emissivity inner layer and a partially transmissive outer layer? Two approaches to obtaining selective emissivity were investigated. The first was to utilize large optical scattering within an emitter material with a spectral optical absorption that is much greater within the visible spectrum than that within the NIR. With this approach, an optically thick emitter can radiate almost as if optically thin because essentially, scattering limits the distance below the surface from which significant amounts of internally generated radiation can emerge. The performance of thin emitters was also investigated (for optically thin emitters, spectral emissivity is proportional to spectral absorptivity). These emitters were fabricated from thin mono-layer emitter rods as well as from bi-layer rods with a thin emitter layer mounted on a substrate core. With an initially estimated energy efficiency of almost three times that of standard incandescent bulbs, a number of energy, economic and environmental benefits such as less energy use and cost, reduced CO{sub 2} emissions, and no mercury contamination was initially projected. The work performed provided answers to a number of important questions. The first is that, with the investigated approaches, the maximum sustained emitter efficiencies are about 1.5 times that of a standard incandescent bulb. This was seen to be the case for both thick and thin emitters, and for both mono-layer and bi-layer designs. While observed VIS/NIR ratios represent improvements over standard incandescent bulbs, it does not appear sufficient to overcome higher cost (i.e. up to five times that of the standard bulb) and ensure commercial success. Another result is that high temperatures (i.e. 2650 K) are routinely attainable without platinum electrodes. This is significant for reducing material costs. A novel dual heating arrangement and insulated electrodes were used to attain these temperatures. Another observed characteristic of the emitter was significant grain growth soon after attaining operating temperatures. This is an undesirable characteristic that results in substantially less optical scattering and spectral selectivity, and which significantly limits emitter efficiencies to the values reported. Further work is required to address this problem.

Sonsight Inc.

2004-04-30T23:59:59.000Z

303

Select an Energy-Efficient Centrifugal Pump  

SciTech Connect (OSTI)

BestPractices Program tip sheet discussing pumping system efficiency by selecting an energy-efficient centrifugal pump.

Not Available

2005-10-01T23:59:59.000Z

304

Bifunctional Catalysts for the Selective Catalytic Reduction...  

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

Reduction (DEER) Conference Presentation: Argonne National Laboratory 2004deermarshall.pdf More Documents & Publications Bifunctional Catalysts for the Selective Catalytic...

305

Selected Studies on Avian RNA Viruses  

E-Print Network [OSTI]

SELECTED STUDIES ON AVIAN RNA VIRUSES A Dissertation by ITAMAR DAVI SCHABERT VILLANUEVA 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 May 2010 Major Subject: Veterinary Microbiology Selected Studies on Avian RNA Viruses Copyright 2010 Itamar Davi Schabert Villanueva SELECTED STUDIES ON AVIAN RNA VIRUSES A...

Villanueva, Itamar D.

2010-07-14T23:59:59.000Z

306

MIS-based sensors with hydrogen selectivity  

DOE Patents [OSTI]

The invention provides hydrogen selective metal-insulator-semiconductor sensors which include a layer of hydrogen selective material. The hydrogen selective material can be polyimide layer having a thickness between 200 and 800 nm. Suitable polyimide materials include reaction products of benzophenone tetracarboxylic dianhydride 4,4-oxydianiline m-phenylene diamine and other structurally similar materials.

Li; ,Dongmei (Boulder, CO); Medlin, J. William (Boulder, CO); McDaniel, Anthony H. (Livermore, CA); Bastasz, Robert J. (Livermore, CA)

2008-03-11T23:59:59.000Z

307

Black nickel selective absorber, optimization of parameters  

SciTech Connect (OSTI)

Electroplated black nickel selective absorber is one of the most commercially used element of solar energy systems. Electrodeposition parameters such as time of deposition, pH, current density, electrolyte temperature should be optimized to produce the most efficient selective absorber. The topology of the substrate material is very effective on selectivity and it should also be optimized. In this study, by controlling the conditions of electrodeposition black nickel selective absorbers are produced and their reflectivities are measured. The effects of the electrodeposition parameters together with the topology of the substrate, on the selective properties are investigated.

Akinoglu, B.; Cercioglu, V.; Ecevit, A.

1983-12-01T23:59:59.000Z

308

All row, planar fault detection system  

DOE Patents [OSTI]

An apparatus, program product and method for detecting nodal faults may simultaneously cause designated nodes of a cell to communicate with all nodes adjacent to each of the designated nodes. Furthermore, all nodes along the axes of the designated nodes are made to communicate with their adjacent nodes, and the communications are analyzed to determine if a node or connection is faulty.

Archer, Charles Jens; Pinnow, Kurt Walter; Ratterman, Joseph D; Smith, Brian Edward

2013-07-23T23:59:59.000Z

309

BLM ROW Grant Template | 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 EastMaine: EnergyAustin Energy Place:Guidance Documents Website:Handbook

310

Variable Row Spacing of Irrigated Cotton.  

E-Print Network [OSTI]

-CLAY LOAM Sol L Acala 1517D Stoneville 7A Average 1028 1145 1153 1228 1327 1312 1128 1236 1232 LSD between individual means: 1269 1149 952 1326 1298 1266 1297 1109 .05-88 Ib; .01-1 12 Ib 1 965-SANDY LOAM SOIL' Acala 15170 Stoneville 7A... variety Thin No thin Thin No thin Thin No thin Thin No thin 1 966-SANDY LOAM Sol L 1966CLAY LOAM SOlL 7 1967-SANDY LOAM SOlL 9 1 L--121517C 59.1 47.8 61.8 64.5 71.3 68.3 66.0 76.8 7 '-:~ei(~Ile 7A 44.2 50.0 53.7 59.2 58.6 59.0 69.4 80.9 *:? ~c...

Longenecker, D. E.; Thaxton, E. L. Jr.; Hefner, J. J.; Lyerly, P. J.

1970-01-01T23:59:59.000Z

311

Update rows? | OpenEI Community  

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,Save Energy NowNew Hampshire Address Chase OceanTennesseerows? Home

312

CSLC ROW Forms | 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: EnergyBoston Areais3: Crystalline Rock -COPPE Incubator JumpISES-FormsCSLCForms

313

" Row: End Uses;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End Uses of Fuel3 End43.

314

" Row: End Uses;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End Uses of Fuel3

315

" Row: End Uses;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End Uses of Fuel38 End

316

" Row: End Uses;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End Uses of Fuel38 End7

317

" Row: End Uses;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End Uses of Fuel38 End78

318

" Row: End Uses;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End Uses of Fuel38

319

" Row: End Uses;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End Uses of Fuel388 End

320

" Row: NAICS Codes;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End

Note: This page contains sample records for the topic "row selected 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

" Row: NAICS Codes;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1. Enclosed

322

" Row: NAICS Codes;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1. Enclosed3 Number

323

" Row: NAICS Codes;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1. Enclosed3

324

" Row: NAICS Codes;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1. Enclosed33

325

" Row: NAICS Codes;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1. Enclosed339.1

326

" Row: NAICS Codes;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1. Enclosed339.19.1

327

" Row: NAICS Codes;"  

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, Virginia:FAQ <Information Administration (EIA) 10 MECSPropane PAD2006..........A49. Total2 End2.1.24 Number2468143

328

Gas turbine row #1 steam cooled vane  

DOE Patents [OSTI]

A design for a vane segment having a closed-loop steam cooling system is provided. The vane segment comprises an outer shroud, an inner shroud and an airfoil, each component having a target surface on the inside surface of its walls. A plurality of rectangular waffle structures are provided on the target surface to enhance heat transfer between each component and cooling steam. Channel systems are provided in the shrouds to improve the flow of steam through the shrouds. Insert legs located in cavities in the airfoil are also provided. Each insert leg comprises outer channels located on a perimeter of the leg, each outer channel having an outer wall and impingement holes on the outer wall for producing impingement jets of cooling steam to contact the airfoil's target surface. Each insert leg further comprises a plurality of substantially rectangular-shaped ribs located on the outer wall and a plurality of openings located between outer channels of the leg to minimize cross flow degradation.

Cunha, Frank J. (Longwood, FL)

2000-01-01T23:59:59.000Z

329

Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report 10, July 1, 1995--September 31, 1995  

SciTech Connect (OSTI)

This document is the tenth quarterly technical progress report under Contract No. DE-AC22-92PC92110 {open_quotes}Development of Vanadium-Phosphate Catalysts for Methanol Production by Selective Oxidation of Methane{close_quotes}. Activities focused on testing of additional modified and promoted catalysts and characterization of these materials. Attempts at improving the sensitivity of our GC based analytical systems were also made with some success. Methanol oxidation studies were initiated. These results are reported. Specific accomplishments include: (1) Methane oxidation testing of a suite of catalysts promoted with most of the first row transition metals was completed. Several of these materials produced low, difficult to quantify yields of formaldehyde. (2) Characterization of these materials by XRD and FTIR was performed with the goal of correlating activity and selectivity with catalyst properties. (3) We began to characterize catalysts prepared via modified synthesis methods designed to enhance acidity using TGA measurements of acetonitrile chemisorption and methanol dehydration to dimethyl ether as a test reaction. (4) A catalyst prepared in the presence of naphthalene methanol as a structural disrupter was tested for activity in methane oxidation. It was found that this material produced low yields of formaldehyde which were difficult to quantify. (5) Preparation of catalysts with no Bronsted acid sites. This was accomplished by replacement of exchangeable protons with potassium, and (6) Methanol oxidation studies were initiated to provide an indication of catalyst activity for decomposition of this desired product and as a method of characterizing the catalyst surface.

McCormick, R.L.

1995-12-07T23:59:59.000Z

330

Material selection for electrooptic deflectors  

SciTech Connect (OSTI)

The selection of a material for a practical device is generally guided by a number of criteria, including cost, size, difficulty of fabrication, durability, driver requirements, and system constraints. A quantitative analysis can usually be made for comparison, or a figure of merit can be computed. In the case of materials for electrooptical (EO) devices the choice is often made based on the availability of materials meeting some minimum system requirement. For fast EO deflectors, where a large number of resolvable spots is required, the choice of materials is quite limited. A model of just such a device is proposed; it is based on the resolution of 400 spots and reasonable boundary conditions. The model predicts that to be successful, an EO material must be chosen that has a linear EO coefficient (r/sub 33/) of at least 336 pm/V. A survey was conducted of the EO materials which are generally available. Based on the model and the survey, Czochralski crystal growth of strontium barium niobate (SBN:60) is recommended. Although SBN:60 does not have the largest EO coefficient, it may be the easiest to grow in the required size and optical quality, thus satisfying the availability criterion. It should be borne in mind that many materials may be grown by this technique and there are many new and potential applications for EO materials. 92 refs., 18 figs., 14 tabs.

Not Available

1988-09-01T23:59:59.000Z

331

Selecting Sheep for Wool and Mutton Production.  

E-Print Network [OSTI]

Results I Seleetiu A group of 75 ranchmen with sheep producing wool of similar quality were Lsed to deter. the value of selection. Twenty-eight of these ranchmen practiced selection while 47 did not. Tb practicing selection received 7....7 percent more for their wool than those who did not. A selective breeding program provides several benefits. The sheep become more unifor* appearance and in wool production. This reduces the number of "cuts" when the lambs are deliv and in the number...

Gray, James A.

1965-01-01T23:59:59.000Z

332

Selecting Sheep for Wool and Mutton Production.  

E-Print Network [OSTI]

should be selected carefully for ' completeness of covering, except on the face. Size of the Animal.-The practical sheep- man prefers a big sheep; and, other things being equal, a big sheep produces more wool than a small one. The relative efficiency... Results of a .! .- r r Selection A group of 75 ranchmen with sheep producing wool of similar quality were user1 to determine the value of selection. Twenty-eight of these ranchmen practiced selection while 47 did not. The 28 practicing...

Gray, James A.

1957-01-01T23:59:59.000Z

333

High temperature solar selective coatings  

DOE Patents [OSTI]

Improved solar collectors (40) comprising glass tubing (42) attached to bellows (44) by airtight seals (56) enclose solar absorber tubes (50) inside an annular evacuated space (54. The exterior surfaces of the solar absorber tubes (50) are coated with improved solar selective coatings {48} which provide higher absorbance, lower emittance and resistance to atmospheric oxidation at elevated temperatures. The coatings are multilayered structures comprising solar absorbent layers (26) applied to the meta surface of the absorber tubes (50), typically stainless steel, topped with antireflective Savers (28) comprising at least two layers 30, 32) of refractory metal or metalloid oxides (such as titania and silica) with substantially differing indices of refraction in adjacent layers. Optionally, at least one layer of a noble metal such as platinum can be included between some of the layers. The absorbent layers cars include cermet materials comprising particles of metal compounds is a matrix, which can contain oxides of refractory metals or metalloids such as silicon. Reflective layers within the coating layers can comprise refractory metal silicides and related compounds characterized by the formulas TiSi. Ti.sub.3SiC.sub.2, TiAlSi, TiAN and similar compounds for Zr and Hf. The titania can be characterized by the formulas TiO.sub.2, Ti.sub.3O.sub.5. TiOx or TiO.sub.xN.sub.1-x with x 0 to 1. The silica can be at least one of SiO.sub.2, SiO.sub.2x or SiO.sub.2xN.sub.1-x with x=0 to 1.

Kennedy, Cheryl E

2014-11-25T23:59:59.000Z

334

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

335

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

336

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,

337

Spectral optical properties of selected photosynthetic microalgae producing biofuels  

E-Print Network [OSTI]

Biochemical composition of microalgae from the green algalof Selected Photosynthetic Microalgae Producing Biofuelsof Selected Photosyn- thetic Microalgae Producing Biofuels,

Lee, Euntaek; Heng, Ri-Liang; Pilon, Laurent

2013-01-01T23:59:59.000Z

338

Liquid Biofuels Strategies and Policies in selected  

E-Print Network [OSTI]

June 2011 Liquid Biofuels Strategies and Policies in selected African Countries A review of some of the challenges, activities and policy options for liquid biofuels Prepared for PISCES by Practical Action Biofuels Strategies and Policies in selected African Countries Although this research is funded by DFID

339

Using Selective Withdrawal to Coat Microparticles  

E-Print Network [OSTI]

Using Selective Withdrawal to Coat Microparticles Itai Cohen,1 Hui Li,2 James L. Hougland,2 Milan Mrksich,2 Sidney R. Nagel1 We report a method that uses the process of selective withdrawal of one fluid a tube with its orifice slightly above a water-oil interface. Upon increasing the flow rate

Mrksich, Milan

340

Automated ConstraintBased Nucleotide Sequence Selection  

E-Print Network [OSTI]

Automated Constraint­Based Nucleotide Sequence Selection for DNA Computation Alexander J. Hartemink computational melting temper­ ature primitive to search a ``nucleotide space'' for sequences satisfying a pre that offer the promise of an efficient method for selecting optimal nucleotide sequences in an automated

Gifford, David K.

Note: This page contains sample records for the topic "row selected 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

Automated Constraint-Based Nucleotide Sequence Selection  

E-Print Network [OSTI]

Automated Constraint-Based Nucleotide Sequence Selection for DNA Computation Alexander J. Hartemink computational melting temperature primitive to search a "nucleotide space" for sequences satisfying a pre that offer the promise of an efficient method for selecting optimal nucleotide sequences in an automated

Gifford, David K.

342

NEW ENERGETIC SELECTION PRINCIPLE IN DIFFERENTIAL EVOLUTION  

E-Print Network [OSTI]

NEW ENERGETIC SELECTION PRINCIPLE IN DIFFERENTIAL EVOLUTION Vitaliy Feoktistov Centre de Recherche and convergence. In this paper we introduce a new principle of Energetic Selection. It consists in both decreasing the population size and the computation efforts according to an energetic barrier function which depends

Boyer, Edmond

343

Selective purge for hydrogenation reactor recycle loop  

SciTech Connect (OSTI)

Processes and apparatus for providing improved contaminant removal and hydrogen recovery in hydrogenation reactors, particularly in refineries and petrochemical plants. The improved contaminant removal is achieved by selective purging, by passing gases in the hydrogenation reactor recycle loop or purge stream across membranes selective in favor of the contaminant over hydrogen.

Baker, Richard W. (Palo Alto, CA); Lokhandwala, Kaaeid A. (Union City, CA)

2001-01-01T23:59:59.000Z

344

Symbolic Test Selection Based on Approximate Analysis  

E-Print Network [OSTI]

Symbolic Test Selection Based on Approximate Analysis Bertrand Jeannet, Thierry J´eron, Vlad Rusu}@irisa.fr Abstract. This paper addresses the problem of generating symbolic test cases for testing the conformance. The challenge we consider is the selection of test cases according to a test purpose, which is here a set

Paris-Sud XI, Université de

345

Myths with Facts: SEX-SELECTIVE ABORTION  

E-Print Network [OSTI]

Replacing Myths with Facts: SEX-SELECTIVE ABORTION LAWS IN THE UNITED STATES I N T E R N A T I O N rights violations and to develop practical solutions to those problems using interdisciplinary, San Francisco. #12;Replacing Myths with Facts: SEX-SELECTIVE ABORTION LAWS IN THE UNITED STATES JUNE

Butler, Laurie J.

346

Combining ability of selected maize (Zea mays L.) lines under diverse environmental conditions  

E-Print Network [OSTI]

long, with a row-to-row spacing of 1 m and a plant-to-plant distance of 0. 20 m. A diallel analysis was performed to determine the GCA and SCA and estimate their interactions with the environment. The combined analysis of combining ability showed... interaction with the environment. For days to silk, both GCA and SCA were stable across environments. For plant height, seed weight, grain yield, and test weight, only GCA interacted with the environment. Two inbreds (Va99 and Tx706) were the most...

Celicard, Zonkeng Guepi

1991-01-01T23:59:59.000Z

347

Process for selecting engineering tools : applied to selecting a SysML tool.  

SciTech Connect (OSTI)

Process for Selecting Engineering Tools outlines the process and tools used to select a SysML (Systems Modeling Language) tool. The process is general in nature and users could use the process to select most engineering tools and software applications.

De Spain, Mark J.; Post, Debra S. (Sandia National Laboratories, Livermore, CA); Taylor, Jeffrey L.; De Jong, Kent

2011-02-01T23:59:59.000Z

348

Hybrid Zones and Sexual Selection 503 HYBRID ZONES AND SEXUAL SELECTION: INSIGHTS FROM  

E-Print Network [OSTI]

Hybrid Zones and Sexual Selection 503 HYBRID ZONES AND SEXUAL SELECTION: INSIGHTS FROM THE AWASH BABOON HYBRID ZONE (Papio hamadryas anubis x P. h. hamadryas) Thore J. Bergman and Jacinta C. Beehner, have focused on the impact of sexual selection on populations of naturally occurring hybrid animals

349

Selective catalyst reduction light-off strategy  

DOE Patents [OSTI]

An emissions control system includes a temperature determination module and an emissions control module. The temperature determination module determines a first temperature of a heater element of a diesel particulate filter (DPF) assembly in an exhaust system and determines a second temperature of a catalyst of the DPF assembly. The emissions control module selectively activates the heater element, selectively initiates a predefined combustion process in an engine based upon the first temperature, and selectively starts a reductant injection process based upon the second temperature.

Gonze, Eugene V [Pinckney, MI

2011-10-18T23:59:59.000Z

350

Forage Bermudagrass: Selection, Establishment and Management  

E-Print Network [OSTI]

. This publication offers information on selecting the most suitable variety of bermudagrass; preparing the land; planting seed, sprigs, stolons, or tops; renovating bermudagrass fields; and managing and harvesting the crop....

Stichler, Charles; Bade, David H.

2003-04-04T23:59:59.000Z

351

Variable Selection for Ultra High Dimensional Data  

E-Print Network [OSTI]

of the proposed approach have been made with the penalized likelihood approaches, such as Lasso, elastic net, SIS and ISIS. The numerical results show that the proposed approach generally outperforms the penalized likelihood approaches. The models selected...

Song, Qifan

2014-05-29T23:59:59.000Z

352

Finding Fingerprints of Selection in Poplar Genomes  

SciTech Connect (OSTI)

Jerry Tuskan of Oak Ridge National Laboratory and the DOE JGI talks about poplar trees as models for selective adaptation to an environment. This video complements a study published ahead online August 24, 2014 in Nature Genetics.

Tuskan, Gerald

2014-10-02T23:59:59.000Z

353

System architecture analysis and selection under uncertainty  

E-Print Network [OSTI]

A system architecture analysis and selection methodology is presented that builds on the Multidisciplinary Analysis and Optimization framework. It addresses a need and opportunity to extend the MAO techniques to include a ...

Smaling, Rudolf M

2005-01-01T23:59:59.000Z

354

Material and processes selection in conceptual design  

E-Print Network [OSTI]

Materials and manufacturing processes are an integral part of the design of a product. The need to combine materials and manufacturing processes selection during the early stages of the design has previously been realized. The work that generally...

Krishnakumar, Karthikeyan

2005-02-17T23:59:59.000Z

355

DOE Secretary Steven Chu has selected the  

E-Print Network [OSTI]

the Bulletin DOE Secretary Steven Chu has selected the staff of the RHIC/ ATLAS Computing Facility of the ear- ly universe by collid- ing heavy ions such as gold -- and the ATLAS experiment, located

Johnson, Peter D.

356

Deep Borehole Disposal Research: Demonstration Site Selection...  

Office of Environmental Management (EM)

Site Selection Guidelines, Borehole Seals Design, and RD&D Needs The U.S. Department of Energy has been investigating deep borehole disposal as one alternative for the disposal...

357

Selective irradiation of the vascular endothelium  

E-Print Network [OSTI]

We developed a unique methodology to selectively irradiate the vascular endothelium in vivo to better understand the role of vascular damage in causing normal tissue radiation side-effects.The relationship between vascular ...

Schuller, Bradley W

2007-01-01T23:59:59.000Z

358

Selecting Fractionators for Product Composition Control  

E-Print Network [OSTI]

are presented for selecting those fractionators where installations of product composition control systems will result in energy savings. Suggestions are included for a preliminary screening of all fractionators and for detailed evaluation of the promising...

Griffin, D. E.; Anderson, J. E.

1979-01-01T23:59:59.000Z

359

Finding Fingerprints of Selection in Poplar Genomes  

ScienceCinema (OSTI)

Jerry Tuskan of Oak Ridge National Laboratory and the DOE JGI talks about poplar trees as models for selective adaptation to an environment. This video complements a study published ahead online August 24, 2014 in Nature Genetics.

Tuskan, Gerald

2014-10-28T23:59:59.000Z

360

Selected problems in turbulence theory and modeling  

E-Print Network [OSTI]

Three different topics of turbulence research that cover modeling, theory and model computation categories are selected and studied in depth. In the first topic, "velocity gradient dynamics in turbulence" (modeling), the Lagrangian linear diffusion...

Jeong, Eun-Hwan

2004-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "row selected 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

Tool developing of MRR strategy selection  

E-Print Network [OSTI]

. . . 18 7 A Framework for Selecting Strategies for MRR of Rigid Pavements . 25 Decision Process for Selecting MRR Strategies . . . . . 26 9 Traffic Volumes ? Construction Time Tolerance Chart. . . . 31 10 Work Zone User Cost Components . 11 Free... transfer is directly related to the assessment of remaining life and life extension of the pavement. In characterizing structural conditions of pavements, the following types of field information regarding the existing pavement structure is necessary (8...

Liu, Juanyu

2001-01-01T23:59:59.000Z

362

Desorption of hexachlorobiphenyl from selected particulate matter  

E-Print Network [OSTI]

DESORPTION OF HEXACHLOROBIPHENYL FROM SELECTED PARTICULATE MATTER A Thesis by REAGAN CARTWRIGHT RORS CHACH Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 1989 Major Subject: Civil Engineering DESORPTION OF HEXACHLOROBIPHENYL FROM SELECTED PARTICULATE MATTER A Thesis by REAGAN C. RORSCHACH Approved as to style and content by: Robin L. Autenrieth (Chair of Committee...

Rorschach, Reagan Cartwright

1989-01-01T23:59:59.000Z

363

Optical selection and collection of DNA fragments  

DOE Patents [OSTI]

Optical selection and collection of DNA fragments. The present invention includes the optical selection and collection of large (>.mu.g) quantities of clonable, chromosome-specific DNA from a sample of chromosomes. Chromosome selection is based on selective, irreversible photoinactivation of unwanted chromosomal DNA. Although more general procedures may be envisioned, the invention is demonstrated by processing chromosomes in a conventional flow cytometry apparatus, but where no droplets are generated. All chromosomes in the sample are first stained with at least one fluorescent analytic dye and bonded to a photochemically active species which can render chromosomal DNA unclonable if activated. After passing through analyzing light beam(s), unwanted chromosomes are irradiated using light which is absorbed by the photochemically active species, thereby causing photoinactivation. As desired chromosomes pass this photoinactivation point, the inactivating light source is deflected by an optical modulator; hence, desired chromosomes are not photoinactivated and remain clonable. The selection and photoinactivation processes take place on a microsecond timescale. By eliminating droplet formation, chromosome selection rates 50 times greater than those possible with conventional chromosome sorters may be obtained. Thus, usable quantities of clonable DNA from any source thereof may be collected.

Roslaniec, Mary C. (Los Alamos, NM); Martin, John C. (Los Alamos, NM); Jett, James H. (Los Alamos, NM); Cram, L. Scott (Los Alamos, NM)

1998-01-01T23:59:59.000Z

364

A SOLAR TEST COLLECTOR FOR EVALUATION OF BOTH SELECTIVE AND NON-SELECTIVE ABSORBERS  

E-Print Network [OSTI]

SECTION A SOLAR TEST COLLECTOR FOR EVALUTATION OF BOTHStandards for Testing Solar Collectors and Thermal StorageSelective Coating Applied to Collector Design, Proceedings

Lampert, Carl M.

2011-01-01T23:59:59.000Z

365

Hierarchical multi-touch selection techniques for collaborative geospatial analysis  

E-Print Network [OSTI]

Hierarchical multi-touch selection techniques for collaborative geospatial analysis Thomas and military use. Keywords: Multi-touch, hierarchical selection, geospatial analysis, GIS, collaborative selection of complex regions-of-interest within a hierarchical geospatial environment, as well as methods

Wartell, Zachary

366

ORIGINAL PAPER Selection, trans-species polymorphism, and locus identification  

E-Print Network [OSTI]

ORIGINAL PAPER Selection, trans-species polymorphism, and locus identification of major amphibian populations. Keywords Amphibia . Beta chain . Gene walking . Lithobates . Positive selection balancing selection Electronic supplementary material The online version of this article (doi:10.1007/s00251

Zamudio, Kelly R.

367

Toxicities of selected substances to freshwater biota  

SciTech Connect (OSTI)

The amount of data available concerning the toxicity of various substances to freshwater biota is so large that it is difficult to use in a practical situation, such as environmental impact assessment. In this document, summary tables are presented showing acute and/or chronic toxicity of selected substances for various groups of aquatic biota. Each entry is referenced to its original source so that details concerning experimental conditions may be consulted. In addition, general information concerning factors modifying toxicity, synergisms, evidence of bioaccumulation, and water quality standards and criteria for the selected substances is given. The final table is a general toxicity table designed to provide an easily accessible and general indication of toxicity of selected substances in aquatic systems.

Hohreiter, D.W.

1980-05-01T23:59:59.000Z

368

Selection of a Wear-Resistant Tractor Drivetrain Material: Success...  

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

Selection of a Wear-Resistant Tractor Drivetrain Material: Success stories at the High Temperature Materials Laboratory (HTML) User Program Selection of a Wear-Resistant Tractor...

369

Baer selected to join Washington Academy of Sciences | EMSL  

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

selected to join Washington Academy of Sciences Baer selected to join Washington Academy of Sciences Released: July 21, 2014 He is being honored for outstanding scientific...

370

Energy Savings Performance Contracting (ESPC)- How to Select...  

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

How to Select an Energy Service Company (ESCO) Energy Savings Performance Contracting (ESPC)- How to Select an Energy Service Company (ESCO) Provides a one page summary on key...

371

Energy Department Selects 11 Tribal Communities to Deploy Energy...  

Energy Savers [EERE]

Selects 11 Tribal Communities to Deploy Energy Efficiency and Renewable Energy Technologies Energy Department Selects 11 Tribal Communities to Deploy Energy Efficiency and...

372

High-Temperatuer Solar Selective Coating Development for Power...  

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

High-Temperatuer Solar Selective Coating Development for Power Tower Receivers High-Temperatuer Solar Selective Coating Development for Power Tower Receivers This presentation was...

373

Materials Down Select Decisions Made Within DOE's Chemical Hydrogen...  

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

Materials Down Select Decisions Made Within DOE's Chemical Hydrogen Storage Center of Excellence Materials Down Select Decisions Made Within DOE's Chemical Hydrogen Storage Center...

374

DOE Announces Award Selections for Academic-Industry Collaboration...  

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

DOE Announces Award Selections for Academic-Industry Collaboration - Synchrophasor Engineering Education Program DOE Announces Award Selections for Academic-Industry Collaboration...

375

Review of Selected Elements of Emergency Management at the Oak...  

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

OVERSIGHT REVIEW OF SELECTED ELEMENTS OF EMERGENCY MANAGEMENT AT THE OAK RIDGE NATIONAL LABORATORY July 2011 i INDEPENDENT OVERSIGHT REVIEW OF SELECTED ELEMENTS OF EMERGENCY...

376

Fact #861 February 23, 2015 Idle Fuel Consumption for Selected...  

Energy Savers [EERE]

1 February 23, 2015 Idle Fuel Consumption for Selected Gasoline and Diesel Vehicles Fact 861 February 23, 2015 Idle Fuel Consumption for Selected Gasoline and Diesel Vehicles...

377

DOE Office of Nuclear Energy Transportation Planning, Route Selection...  

Office of Environmental Management (EM)

DOE Office of Nuclear Energy Transportation Planning, Route Selection, and Rail Issues DOE Office of Nuclear Energy Transportation Planning, Route Selection, and Rail Issues...

378

Vehicle Technologies Office: Past Funding Opportunities and Selections...  

Energy Savers [EERE]

Past Funding Opportunities and Selections Vehicle Technologies Office: Past Funding Opportunities and Selections The U.S. Department of Energy's (DOE) Vehicle Technologies Office...

379

Project Profile: High-Temperature Solar Selective Coating Development...  

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

Solar Selective Coating Development for Power Tower Receivers Project Profile: High-Temperature Solar Selective Coating Development for Power Tower Receivers Sandia National...

380

SciTech Connect: Gametic selection as an evolutionary force:...  

Office of Scientific and Technical Information (OSTI)

Gametic selection as an evolutionary force: the maintenance of lethal polymorphisms in wild populations of Mus musculus Citation Details In-Document Search Title: Gametic selection...

Note: This page contains sample records for the topic "row selected 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

Recovery Act Selections for Smart Grid Investment Grant Awards...  

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

Recovery Act Selections for Smart Grid Investment Grant Awards- By Category Updated July 2010 Recovery Act Selections for Smart Grid Investment Grant Awards- By Category Updated...

382

Recovery Act Selections for Smart Grid Investment Grant Awards...  

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

Category Updated November 2011 Recovery Act Selections for Smart Grid Investment Grant Awards - By Category Updated November 2011 List of selections for the Smart Grid Investment...

383

Recovery Act Selections for Smart Grid Investment Grant Awards...  

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

State - Updated November 2011 Recovery Act Selections for Smart Grid Investment Grant Awards - By State - Updated November 2011 List of selections for the Smart Grid Investment...

384

Recovery Act Selections for Smart Grid Invesment Grant Awards...  

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

Recovery Act Selections for Smart Grid Invesment Grant Awards- By Category Updated July 2010 Recovery Act Selections for Smart Grid Invesment Grant Awards- By Category Updated July...

385

Los Alamos laser selected for 2020 Mars mission  

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

Los Alamos laser selected for 2020 Mars mission Los Alamos laser selected for 2020 Mars mission SuperCam builds upon the successful capabilities demonstrated aboard the Curiosity...

386

Laser Control of Desorption Through Selective Surface Excitation...  

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

Control of Desorption Through Selective Surface Excitation. Laser Control of Desorption Through Selective Surface Excitation. Abstract: We review recent developments in controlling...

387

Virginia Tech Selected to Continue Development of Innovative...  

Office of Environmental Management (EM)

Virginia Tech Selected to Continue Development of Innovative Building Automation System Virginia Tech Selected to Continue Development of Innovative Building Automation System...

388

Beam geometry selection using sequential beam addition  

SciTech Connect (OSTI)

Purpose: The selection of optimal beam geometry has been of interest since the inception of conformal radiotherapy. The authors report on sequential beam addition, a simple beam geometry selection method, for intensity modulated radiation therapy. Methods: The sequential beam addition algorithm (SBA) requires definition of an objective function (score) and a set of candidate beam geometries (pool). In the first iteration, the optimal score is determined for each beam in the pool and the beam with the best score selected. In the next iteration, the optimal score is calculated for each beam remaining in the pool combined with the beam selected in the first iteration, and the best scoring beam is selected. The process is repeated until the desired number of beams is reached. The authors selected three treatment sites, breast, lung, and brain, and determined beam arrangements for up to 11 beams from a pool comprised of 25 equiangular transverse beams. For the brain, arrangements were additionally selected from a pool of 22 noncoplanar beams. Scores were determined for geometries comprised equiangular transverse beams (EQA), as well as two tangential beams for the breast case. Results: In all cases, SBA resulted in scores superior to EQA. The breast case had the strongest dependence on beam geometry, for which only the 7-beam EQA geometry had a score better than the two tangential beams, whereas all SBA geometries with more than two beams were superior. In the lung case, EQA and SBA scores monotonically improved with increasing number of beams; however, SBA required fewer beams to achieve scores equivalent to EQA. For the brain case, SBA with a coplanar pool was equivalent to EQA, while the noncoplanar pool resulted in slightly better scores; however, the dose-volume histograms demonstrated that the differences were not clinically significant. Conclusions: For situations in which beam geometry has a significant effect on the objective function, SBA can identify arrangements equivalent to equiangular geometries but using fewer beams. Furthermore, SBA provides the value of the objective function as the number of beams is increased, allowing the planner to select the minimal beam number that achieves the clinical goals. The method is simple to implement and could readily be incorporated into an existing optimization system.

Popple, Richard A., E-mail: rpopple@uabmc.edu; Brezovich, Ivan A.; Fiveash, John B. [Department of Radiation Oncology, The University of Alabama at Birmingham, 1720 2nd Avenue South, Birmingham, Alabama 35294 (United States)] [Department of Radiation Oncology, The University of Alabama at Birmingham, 1720 2nd Avenue South, Birmingham, Alabama 35294 (United States)

2014-05-15T23:59:59.000Z

389

Integrability implies pattern selection in interface dynamics  

E-Print Network [OSTI]

The unsteady motion of a finite assembly of bubbles in a Hele-Shaw cell is analyzed when surface tension effects are neglected. It is shown that steady configurations where the bubbles move twice as fast as the background fluid are generally selected by the dynamics, regardless of the number and initial shapes of the bubbles. The selection mechanism is traced back to the integrable nature of the Hele-Shaw dynamics with zero surface tension. The case of a periodic array of bubbles is also briefly considered, and here it is found that no particular bubble velocity is favoured by the dynamics.

Vasconcelos, Giovani L

2015-01-01T23:59:59.000Z

390

Selective Sorbents For Purification Of Hydrocarbons  

DOE Patents [OSTI]

A method for removing thiophene and thiophene compounds from liquid fuel includes contacting the liquid fuel with an adsorbent which preferentially adsorbs the thiophene and thiophene compounds. The adsorption takes place at a selected temperature and pressure, thereby producing a non-adsorbed component and a thiophene/thiophene compound-rich adsorbed component. The adsorbent includes either a metal or a metal ion that is adapted to form p-complexation bonds with the thiophene and/or thiophene compounds, and the preferential adsorption occurs by p-complexation. A further method includes selective removal of aromatic compounds from a mixture of aromatic and aliphatic compounds.

Yang, Ralph T. (Ann Arbor, MI); Yang, Frances H. (Ann Arbor, MI); Takahashi, Akira (Yoko-Machi, JP); Hernandez-Maldonado, Arturo J. (Ann Arbor, MI)

2006-04-18T23:59:59.000Z

391

Selective sorbents for purification of hydrocarbons  

DOE Patents [OSTI]

A method for removing thiophene and thiophene compounds from liquid fuel includes contacting the liquid fuel with an adsorbent which preferentially adsorbs the thiophene and thiophene compounds. The adsorption takes place at a selected temperature and pressure, thereby producing a non-adsorbed component and a thiophene/thiophene compound-rich adsorbed component. The adsorbent includes either a metal or a metal cation that is adapted to form .pi.-complexation bonds with the thiophene and/or thiophene compounds, and the preferential adsorption occurs by .pi.-complexation. A further method includes selective removal of aromatic compounds from a mixture of aromatic and aliphatic compounds.

Yang, Ralph T.; Yang, Frances H.; Takahashi, Akira; Hernandez-Maldonado, Arturo J.

2006-05-30T23:59:59.000Z

392

Selective sorbents for purification of hydrocarbons  

DOE Patents [OSTI]

A method for removing thiophene and thiophene compounds from liquid fuel includes contacting the liquid fuel with an adsorbent which preferentially adsorbs the thiophene and thiophene compounds. The adsorption takes place at a selected temperature and pressure, thereby producing a non-adsorbed component and a thiophene/thiophene compound-rich adsorbed component. The adsorbent includes either a metal or a metal cation that is adapted to form .pi.-complexation bonds with the thiophene and/or thiophene compounds, and the preferential adsorption occurs by .pi.-complexation. A further method includes selective removal of aromatic compounds from a mixture of aromatic and aliphatic compounds.

Yang, Ralph T.; Hernandez-Maldonado, Arturo J.; Yang, Frances H.; Takahashi, Akira

2006-08-22T23:59:59.000Z

393

Selective sorbents for purification of hydrocartons  

DOE Patents [OSTI]

A method for removing thiophene and thiophene compounds from liquid fuel includes contacting the liquid fuel with an adsorbent which preferentially adsorbs the thiophene and thiophene compounds. The adsorption takes place at a selected temperature and pressure, thereby producing a non-adsorbed component and a thiophene/thiophene compound-rich adsorbed component. The adsorbent includes either a metal or a metal ion that is adapted to form .pi.-complexation bonds with the thiophene and/or thiophene compounds, and the preferential adsorption occurs by .pi.-complexation. A further method includes selective removal of aromatic compounds from a mixture of aromatic and aliphatic compounds.

Yang, Ralph T.; Yang, Frances H.; Takahashi, Akira; Hermandez-Maldonado, Arturo J.

2006-12-12T23:59:59.000Z

394

Color selective photodetector and methods of making  

DOE Patents [OSTI]

A photoelectric device, such as a photodetector, can include a semiconductor nanowire electrostatically associated with a J-aggregate. The J-aggregate can facilitate absorption of a desired wavelength of light, and the semiconductor nanowire can facilitate charge transport. The color of light detected by the device can be chosen by selecting a J-aggregate with a corresponding peak absorption wavelength.

Walker, Brian J.; Dorn, August; Bulovic, Vladimir; Bawendi, Moungi G.

2013-03-19T23:59:59.000Z

395

Selected Intellectual Property Issues in Standardization  

E-Print Network [OSTI]

Selected Intellectual Property Issues in Standardization Martin B.H. Weiss Michael B. Spring of a standard: development, where the content of the standard is created; distribution, where documentation on the standard is shared with the vendor and user community; and implementation, where products and processes

Spring, Michael B.

396

Selection to the Kansas Supreme Court  

E-Print Network [OSTI]

. This process for selecting justices to the Kansas Supreme Court is described by the organized bar as a "merit," rather than political, process. Other observers, however, emphasize that the process has a political side as well. This paper surveys debate about...

Ware, Stephen J.

2008-01-01T23:59:59.000Z

397

Selection of Processes for Welding Steel Rails  

E-Print Network [OSTI]

...._ _) Selection of Processes for Welding Steel Rails by N.S. Tsai* and T.W. Eagar* ABSTRACT 421 The advantages and limitations ofseveral conventional and prospective rail welding processes are reviewed with emphasis on the heat input rate, on joint preparation, on post weld grinding and on resultant metallurgical

Eagar, Thomas W.

398

SELECTED BIBLIOGRAPHY ON APPLICATIONS OF ELECTRICTY  

E-Print Network [OSTI]

for administrative or legislative action. It is issued in limited quantities for the official use of Federal, State or cooperating Agencies and in processed form for economy and to avoid delay in publication. S7801 #12;United, Director SELECTED BIBLIOGRAPHY ON THE APPLICATIONS OF ELECTRICITY IN FISHERY SCIENCE by Vernon C. Applegate

399

Robust Critical Node Selection by Benders Decomposition  

E-Print Network [OSTI]

critical node selection problem, we define the following decision variables ..... method to generate Pareto-optimal cuts thus achieving very good speed-ups compared to ... Barabsi-Albert graphs generated using the Barabsi graph generator (Dreier, 2006). ...... Computers & Operations Research, 38(12):1766 1774, 2011.

2014-01-28T23:59:59.000Z

400

Ligand iron catalysts for selective hydrogenation  

DOE Patents [OSTI]

Disclosed are iron ligand catalysts for selective hydrogenation of aldehydes, ketones and imines. A catalyst such as dicarbonyl iron hydride hydroxycyclopentadiene) complex uses the OH on the five member ring and hydrogen linked to the iron to facilitate hydrogenation reactions, particularly in the presence of hydrogen gas.

Casey, Charles P. (Madison, WI); Guan, Hairong (Cincinnati, OH)

2010-11-16T23:59:59.000Z

Note: This page contains sample records for the topic "row selected 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

Convex Principal Feature Selection Mahdokht Masaeli1  

E-Print Network [OSTI]

Advertising Sciences, Yahoo! Labs, Silicon Valley, CA, USA 3 Computer Aided Diagnosis and Therapy, Siemens Medical Solutions, USA {masaeli.m, yan.y, cui.yi}@neu.edu, glenn.fung@siemens.com, jdy transformation is achieved. However, true feature selection may not be achieved as non-sparse coefficients may

Dy, Jennifer G.

402

Glucose sensing molecules having selected fluorescent properties  

DOE Patents [OSTI]

An analyte sensing fluorescent molecule that employs intramolecular electron transfer is designed to exhibit selected fluorescent properties in the presence of analytes such as saccharides. The selected fluorescent properties include excitation wavelength, emission wavelength, fluorescence lifetime, quantum yield, photostability, solubility, and temperature or pH sensitivity. The compound comprises an aryl or a substituted phenyl boronic acid that acts as a substrate recognition component, a fluorescence switch component, and a fluorophore. The fluorophore and switch component are selected such that the value of the free energy for electron transfer is less than about 3.0 kcal mol.sup.-1. Fluorescent compounds are described that are excited at wavelengths greater than 400 nm and emit at wavelengths greater than 450 nm, which is advantageous for optical transmission through skin. The fluorophore is typically selected from transition metal-ligand complexes and thiazine, oxazine, oxazone, or oxazine-one as well as anthracene compounds. The fluorescent compound can be immobilized in a glucose permeable biocompatible polymer matrix that is implantable below the skin.

Satcher Jr., Joe H.; Lane, Stephen M.; Darrow, Christopher B.; Cary, Douglas R.; Tran, Joe Anh

2004-01-27T23:59:59.000Z

403

Isotope separation by selective photodissociation of glyoxal  

DOE Patents [OSTI]

Dissociation products, mainly formaldehyde and carbon monoxide, enriched in a desired isotope of carbon, oxygen, or hydrogen are obtained by the selective photodissociation of glyoxal wherein glyoxal is subjected to electromagnetic radiation of a predetermined wavelength such that photon absorption excites and induces dissociation of only those molecules of glyoxal containing the desired isotope.

Marling, John B. (Pleasanton, CA)

1976-01-01T23:59:59.000Z

404

Cost Efficient Datacenter Selection for Cloud Services  

E-Print Network [OSTI]

Cost Efficient Datacenter Selection for Cloud Services Hong Xu, Baochun Li henryxu, bli and performance. They need an effective way to direct the user requests to a suitable datacenter, in a cost efficient manner. Previ- ous work focused mostly on the electricity cost of datacenters. The approaches

Li, Baochun

405

ONLINE OPTIMIZATION AND SELECTION OF MEASUREMENTS  

E-Print Network [OSTI]

117 Chapter 7 ON­LINE OPTIMIZATION AND SELECTION OF MEASUREMENTS This is the last of three chapters that discuss optimal operation of a general heat exchanger network. A method that combines the use of steady state optimization and decentralized feedback control is proposed. A general steady state model

Skogestad, Sigurd

406

Selective flotation of inorganic sulfides from coal  

DOE Patents [OSTI]

Pyritic sulfur is removed from coal or other carbonaceous material through the use of humic acid as a coal flotation depressant. Following the removal of coarse pyrite, the carbonaceous material is blended with humic acid, a pyrite flotation collector and a frothing agent within a flotation cell to selectively float pyritic sulfur leaving clean coal as an underflow. 1 fig., 2 tabs.

Miller, K.J.; Wen, Wu-Wey

1988-05-31T23:59:59.000Z

407

Selective flotation of inorganic sulfides from coal  

DOE Patents [OSTI]

Pyritic sulfur is removed from coal or other carbonaceous material through the use of humic acid as a coal flotation depressant. Following the removal of coarse pyrite, the carbonaceous material is blended with humic acid, a pyrite flotation collector and a frothing agent within a flotation cell to selectively float pyritic sulfur leaving clean coal as an underflow.

Miller, Kenneth J. (Floreffe, PA); Wen, Wu-Wey (Murrysville, PA)

1989-01-01T23:59:59.000Z

408

Small Scale Poultry Production Breed Selection  

E-Print Network [OSTI]

Small Scale Poultry Production Breed Selection Cindy Sanders, Ph.D. ­ UF/IFAS Alachua County Extension #12;`Alternative' Poultry Production · Pastured Poultry ­ Access to pasture daily ­ Options include: open-bottomed pen moved daily, day-range, chicken tractor. · Free Range Poultry ­ Demonstrated

Jawitz, James W.

409

Device Selection by a Personal Proxy Agent  

E-Print Network [OSTI]

Device Selection by a Personal Proxy Agent N. Hadibi, K. El-khatib, Eric Z. Zhang, Ken Chan, G. v user to access communication devices currently present in his Personal Area Network (PAN) Performs PreferencesDevice Capability An example Scenario: Connecting Alice and Bob w/o a Personal Proxy Internet Home

von Bochmann, Gregor

410

Characterization of Commercial Sites Selected for  

E-Print Network [OSTI]

Energy Institute School of Ocean and Earth Science and Technology University of Hawai`i January 2014 #12Characterization of Commercial Sites Selected for Energy Efficiency Monitoring Prepared for the U.S. Department of Energy Office of Electricity Delivery and Energy Reliability Under Cooperative Agreement No. DE

411

Original article Parallel selection of ethanol  

E-Print Network [OSTI]

Original article Parallel selection of ethanol and acetic-acid tolerance in Drosophila melanogaster significantly with latitude (0.036 ! 0.004 for 1° latitude; genetic divergence FST = 0.25). Patterns of ethanol of latitudinal ethanol tolerance (10 to 15%) and acetic-acid tolerance (3.7 to 13.2%) were observed in adult

Paris-Sud XI, Université de

412

Engineering development of selective agglomeration. Final report  

SciTech Connect (OSTI)

This report presents the findings of the project entitled ``Engineering Development of Selective Agglomeration.`` The purpose is to develop selective agglomeration technology to a commercially acceptable level by 1993. Engineering development included bench-scale process development, component development adaptation or modification of existing unit operations, proof-of-concept (POC) module design, fabrication, testing, data evaluation, and conceptual design of a commercial facility. The information obtained during POC operation resulted in a technical and economic design base sufficient to support construction and operation of a commercial plant. Throughout this project performance targets for the engineering development of selective agglomeration process were to achieve 85% or greater Btu recovery at 85% or greater pyritic sulfur rejection (PSR). Additional objectives included producing a final clean-coal product with an ash content of 6% or less which is suitable for conventional coal handling systems. The selective agglomeration process, as applied to coal cleaning, is based on differences in the surface chemistry of coal and its associated impurities. Coal particles are hydrophobic (i.e., repel water) while the majority of its impurities are hydrophilic (i.e., stabilized in water). During selective agglomeration, a liquid (the agglomerant) that is immiscible with water is introduced into a coal-water slurry and agitated to disperse it in the slurry, thereby allowing it to come into contact with all particles in the slurry. The coal particles, due to their hydrophobic nature, are attracted to the agglomerant phase. The hydrophilic mineral impurities remain in the water phase. Continued agitation of the agglomerant-coated coal particles causes them to coalesce to form agglomerates. Once the agglomerates are formed, they are separated from the mineral matter-bearing aqueous phase by subsequent processing steps.

Not Available

1993-04-01T23:59:59.000Z

413

Random selection as a confidence building tool  

SciTech Connect (OSTI)

Any verification measurement performed on potentially classified nuclear material must satisfy two seemingly contradictory constraints. First and foremost, no classified information can be released. At the same time, the monitoring party must have confidence in the veracity of the measurement. The first concern can be addressed by performing the measurements within the host facility using instruments under the host's control. Because the data output in this measurement scenario is also under host control, it is difficult for the monitoring party to have confidence in that data. One technique for addressing this difficulty is random selection. The concept of random selection can be thought of as four steps: (1) The host presents several 'identical' copies of a component or system to the monitor. (2) One (or more) of these copies is randomly chosen by the monitors for use in the measurement system. (3) Similarly, one or more is randomly chosen to be validated further at a later date in a monitor-controlled facility. (4) Because the two components or systems are identical, validation of the 'validation copy' is equivalent to validation of the measurement system. This procedure sounds straightforward, but effective application may be quite difficult. Although random selection is often viewed as a panacea for confidence building, the amount of confidence generated depends on the monitor's continuity of knowledge for both validation and measurement systems. In this presentation, we will discuss the random selection technique, as well as where and how this technique might be applied to generate maximum confidence. In addition, we will discuss the role of modular measurement-system design in facilitating random selection and describe a simple modular measurement system incorporating six small {sup 3}He neutron detectors and a single high-purity germanium gamma detector.

Macarthur, Duncan W [Los Alamos National Laboratory; Hauck, Danielle [Los Alamos National Laboratory; Langner, Diana [Los Alamos National Laboratory; Thron, Jonathan [Los Alamos National Laboratory; Smith, Morag [Los Alamos National Laboratory; Williams, Richard [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

414

Review and selection of unsaturated flow models  

SciTech Connect (OSTI)

Since the 1960`s, ground-water flow models have been used for analysis of water resources problems. In the 1970`s, emphasis began to shift to analysis of waste management problems. This shift in emphasis was largely brought about by site selection activities for geologic repositories for disposal of high-level radioactive wastes. Model development during the 1970`s and well into the 1980`s focused primarily on saturated ground-water flow because geologic repositories in salt, basalt, granite, shale, and tuff were envisioned to be below the water table. Selection of the unsaturated zone at Yucca Mountain, Nevada, for potential disposal of waste began to shift model development toward unsaturated flow models. Under the US Department of Energy (DOE), the Civilian Radioactive Waste Management System Management and Operating Contractor (CRWMS M&O) has the responsibility to review, evaluate, and document existing computer models; to conduct performance assessments; and to develop performance assessment models, where necessary. This document describes the CRWMS M&O approach to model review and evaluation (Chapter 2), and the requirements for unsaturated flow models which are the bases for selection from among the current models (Chapter 3). Chapter 4 identifies existing models, and their characteristics. Through a detailed examination of characteristics, Chapter 5 presents the selection of models for testing. Chapter 6 discusses the testing and verification of selected models. Chapters 7 and 8 give conclusions and make recommendations, respectively. Chapter 9 records the major references for each of the models reviewed. Appendix A, a collection of technical reviews for each model, contains a more complete list of references. Finally, Appendix B characterizes the problems used for model testing.

Reeves, M.; Baker, N.A.; Duguid, J.O. [INTERA, Inc., Las Vegas, NV (United States)

1994-04-04T23:59:59.000Z

415

Hybridization and Selective Release of DNA Microarrays  

SciTech Connect (OSTI)

DNA microarrays contain sequence specific probes arrayed in distinct spots numbering from 10,000 to over 1,000,000, depending on the platform. This tremendous degree of multiplexing gives microarrays great potential for environmental background sampling, broad-spectrum clinical monitoring, and continuous biological threat detection. In practice, their use in these applications is not common due to limited information content, long processing times, and high cost. The work focused on characterizing the phenomena of microarray hybridization and selective release that will allow these limitations to be addressed. This will revolutionize the ways that microarrays can be used for LLNL's Global Security missions. The goals of this project were two-fold: automated faster hybridizations and selective release of hybridized features. The first study area involves hybridization kinetics and mass-transfer effects. the standard hybridization protocol uses an overnight incubation to achieve the best possible signal for any sample type, as well as for convenience in manual processing. There is potential to significantly shorten this time based on better understanding and control of the rate-limiting processes and knowledge of the progress of the hybridization. In the hybridization work, a custom microarray flow cell was used to manipulate the chemical and thermal environment of the array and autonomously image the changes over time during hybridization. The second study area is selective release. Microarrays easily generate hybridization patterns and signatures, but there is still an unmet need for methodologies enabling rapid and selective analysis of these patterns and signatures. Detailed analysis of individual spots by subsequent sequencing could potentially yield significant information for rapidly mutating and emerging (or deliberately engineered) pathogens. In the selective release work, optical energy deposition with coherent light quickly provides the thermal energy to single spots to release hybridized DNA. This work leverages LLNL expertise in optics, microfluids, and bioinformatics.

Beer, N R; Baker, B; Piggott, T; Maberry, S; Hara, C M; DeOtte, J; Benett, W; Mukerjee, E; Dzenitis, J; Wheeler, E K

2011-11-29T23:59:59.000Z

416

ORIGINAL PAPER Rapid Selection Response for Contextual Fear Conditioning  

E-Print Network [OSTI]

conditioning. Keywords Fear conditioning Á Albino Á Tyrosinase (tyr) Á Selection Á QTL Á Gene expression

Gilad, Yoav

417

Selection of 3013 Containers for Field Surveillance  

SciTech Connect (OSTI)

This report revises and combines three earlier reports dealing with the binning, statistical sampling, and sample selection of 3013 containers for field surveillance. It includes changes to the binning specification resulting from completion of the Savannah River Site packaging campaign and new information from the shelf-life program and field surveillance activities. The revised bin assignments result in changes to the random sample specification. These changes are necessary to meet the statistical requirements of the surveillance program. This report will be reviewed regularly and revised as needed. Section 1 of this report summarizes the results of an extensive effort to assign all of the current and projected 3013 containers in the Department of Energy (DOE) inventory to one of three bins (Innocuous, Pressure and Corrosion, or Pressure) based on potential failure mechanisms. Grouping containers into bins provides a framework to make a statistical selection of individual containers from the entire population for destructive and nondestructive field surveillance. The binning process consisted of three main steps. First, the packaged containers were binned using information in the Integrated Surveillance Program database and a decision tree. The second task was to assign those containers that could not be binned using the decision tree to a specific bin using container-by-container engineering review. The final task was to evaluate containers not yet packaged and assign them to bins using process knowledge. The technical basis for the decisions made during the binning process is included in Section 1. A composite decision tree and a summary table show all of the containers projected to be in the DOE inventory at the conclusion of packaging at all sites. Decision trees that provide an overview of the binning process and logic are included for each site. Section 2 of this report describes the approach to the statistical selection of containers for surveillance and consists of a revision of the earlier statistical sampling report. The requirement of 99.9% probability of observing at least one of the worst 5% (99.9/5%) of the containers with a potential for degradation is used to determine the number of containers in the random sample for the Pressure and Corrosion and the Pressure bins. Sampling requirements for the Innocuous bin are not based on the 99.9/5% requirement; rather, they are based on evaluating the assumption of no significant degradation of, or variability between, containers relative to corrosion or pressure generation within the Innocuous bin population as valid. Section 3 of this report focuses on the actual selection of 3013 containers for surveillance. Surveillance containers are identified by the year that the surveillance should be performed. In addition to the randomly selected containers, containers were selected from the entire population, based on engineering judgment for each of these years. The judgmental sampling targets containers with the greatest potential for gas generation and/or corrosion. The factors used for judgmental sample selection are documented in this section. A more detailed discussion of the FY 2005 sample selection process is contained in the previous FY 2005 sample selection report.

Larry Peppers, Elizabeth Kelly, James McClard, Gary Friday, Theodore Venetz, and Jerry Stakebade

2007-01-01T23:59:59.000Z

418

R163B -Eye movements and time-based selection Running head: EYE MOVEMENTS AND TIME-BASED SELECTION  

E-Print Network [OSTI]

R163B - Eye movements and time-based selection Running head: EYE MOVEMENTS AND TIME-BASED SELECTION Eye movements and time-based selection: Where do the eyes go in preview search? Derrick G. Watson.g.watson@warwick.ac.uk 1 #12;R163B - Eye movements and time-based selection Abstract In visual search tasks, presenting one

Inglis, Matthew

419

Fluidized bed selective pyrolysis of coal  

DOE Patents [OSTI]

The present invention discloses a process for the pyrolysis of coal which comprises the effective utilization of two zonal inclined fluidized beds, where said zones can be selectively controlled as to temperature and heating rate. The first zonal inclined fluidized bed serves as a dryer for crushed coal and additionally is controlled to selectively pyrolyze said coal producing substantially carbon dioxide for recycle use. The second zonal inclined fluidized bed further pyrolyses the coal to gaseous, liquid and char products under controlled temperature and heating rate zones designed to economically integrate the product mix. The gas and liquid products are recovered from the gaseous effluent stream while the char which remains can be further treated or utilized in a subsequent process step. 9 figs.

Shang, J.Y.; Cha, C.Y.; Merriam, N.W.

1992-12-15T23:59:59.000Z

420

Selective spectroscopic methods for water analysis  

SciTech Connect (OSTI)

This dissertation explores in large part the development of a few types of spectroscopic methods in the analysis of water. Methods for the determination of some of the most important properties of water like pH, metal ion content, and chemical oxygen demand are investigated in detail. This report contains a general introduction to the subject and the conclusions. Four chapters and an appendix have been processed separately. They are: chromogenic and fluorogenic crown ether compounds for the selective extraction and determination of Hg(II); selective determination of cadmium in water using a chromogenic crown ether in a mixed micellar solution; reduction of chloride interference in chemical oxygen demand determination without using mercury salts; structural orientation patterns for a series of anthraquinone sulfonates adsorbed at an aminophenol thiolate monolayer chemisorbed at gold; and the role of chemically modified surfaces in the construction of miniaturized analytical instrumentation.

Vaidya, B.

1997-06-24T23:59:59.000Z

Note: This page contains sample records for the topic "row selected 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.


421

Selected papers for global `95 concerning plutonium  

SciTech Connect (OSTI)

This report contains selected papers from the Global `95 Conference ``Evaluation of Emerging Nuclear Fuel Cycle Systems,`` held in Versailles, Sept. 11-14, 1995. The 11 papers in Part I are from ``Benefits and Risks of Reprocessing`` sessions. The 7 papers in Part II are some of the more interesting poster papers that relate to the use of Pu for power generation. Finally, the 3 papers are on the topic of management and disposition of Pu from retired nuclear weapons.

Sutcliffe, W.G. [ed.

1996-06-14T23:59:59.000Z

422

Guiding Architects in Selecting Architectural Evolution Alternatives  

SciTech Connect (OSTI)

Although there exist methods and tools to support architecture evolution, the derivation and evaluation of alternative evolution paths are realized manually. In this paper, we introduce an approach, where architecture specification is converted to a graph representation. Based on this representation, we automatically generate possible evolution paths, evalute quality attributes for different architecture configurations, and optimize the selection of a particular path accordingly. We illustrate our approach by modeling the software architecture evolution of a crisis management system.

Ciraci, Selim; Sozer, Hasan; Aksit, Mehmet

2011-09-09T23:59:59.000Z

423

Trace fossil assemblages in selected shelf sandstones  

E-Print Network [OSTI]

Harris. Thank you, good luck in the future, and may God bless you all. vi TABLE OF CONTENTS INTRODUCTION Background Objectives Methods . TRACE FOSSIL IDENTIFICATION IN CORES Introduction Description of Selected Trace Fossils TRACE FOSSILS..., the trace foss11 distributions agreed with those of the ichnofacies described by Seilacher (1978) and with the known environmental distributions compiled by Chamberlain (1978), but many trace fossils have widespread occurrences that limit...

Locke, Kathleen Ann

1983-01-01T23:59:59.000Z

424

Ion exchange selectivity of a perfluorosulfonate ionomer  

E-Print Network [OSTI]

of Advisory Committee: Dr. C. R. Martin The ion exchange selectivity of Nafion was evaluated. Two separate series of homologous cations were separated. A series of viologens, methyl, benzyl, and heptyl, were sepa- rated by utilizing tetramethyl ammonium... which demonstrated X m the ionic exchange characteristic of the system. Comparison of the elution volumes of methyl viologen on ODS (1. 80 ml) and on Nafion coated ODS (9. 50 ml) also indicates the ionic characteristic of the Nafion column...

Wilkerson, James Edward

1983-01-01T23:59:59.000Z

425

Speed selection for coupled wave equations  

E-Print Network [OSTI]

We discuss models for coupled wave equations describing interacting fields, focusing on the speed of travelling wave solutions. In particular, we propose a general mechanism for selecting and tuning the speed of the corresponding (multi-component) travelling wave solutions under certain physical conditions. A number of physical models (molecular chains, coupled Josephson junctions, propagation of kinks in chains of adsorbed atoms and domain walls) are considered as examples.

Mariano Cadoni; Giuseppe Gaeta

2015-01-13T23:59:59.000Z

426

Chilling injury in selected cucumber cultivars  

E-Print Network [OSTI]

in the post-harvest handling of cucumber (Cucumis sativis L. ) fruit. A seri es of experiments was performed to investigate the relative chilling sensitivity of several cucumber varieties. An initial experiment was used to select for sensitive and tolerant... varieties. Fruit treated 0 at 2 C were evaluated for water-soaking of internal tissue (WS), a subjective index of chilling injury (CI), and ethylene evolution was measured after a post-treatment warming period. Variety and duration of chilling were...

Kent, Matthew Wayne

1988-01-01T23:59:59.000Z

427

NGNP Graphite Selection and Acquisition Strategy  

SciTech Connect (OSTI)

The nuclear graphite (H-451) previously used in the United States for High-Temperature Reactors (HTRs) is no longer available. New graphites have been developed and are considered suitable candidates for the Next-Generation Nuclear Plant (NGNP). A complete properties database for these new, available, candidate grades of graphite must be developed to support the design and licensing of NGNP core components. Data are required for the physical, mechanical (including radiation-induced creep), and oxidation properties of graphites. Moreover, the data must be statistically sound and take account of in-billet, between billets, and lot-to-lot variations of properties. These data are needed to support the ongoing development1 of the risk-derived American Society of Mechanical Engineers (ASME) graphite design code (a consensus code being prepared under the jurisdiction of the ASME by gas-cooled reactor and NGNP stakeholders including the vendors). The earlier Fort St. Vrain design of High-Temperature Reactor (HTRs) used deterministic performance models for H-451, while the NGNP will use new graphite grades and risk-derived (probabilistic) performance models and design codes, such as that being developed by the ASME. A radiation effects database must be developed for the currently available graphite materials, and this requires a substantial graphite irradiation program. The graphite Technology Development Plan (TDP)2 describes the data needed and the experiments planned to acquire these data in a timely fashion to support NGNP design, construction, and licensing. The strategy for the selection of appropriate grades of graphite for the NGNP is discussed here. The final selection of graphite grades depends upon the chosen reactor type and vendor because the reactor type (pebble bed or prismatic block) has a major influence on the graphite chosen by the designer. However, the time required to obtain the needed irradiation data for the selected NGNP graphite is sufficiently long that a preliminary selection was necessary in 2005. A further downselect was made in 2006, reducing the number of candidate graphites to two, with two reserve grades. Since then additional information has been obtained from potential NGNP vendors and graphite manufacturers. Therefore, the NGNP graphite selection strategy has been reassessed. New recommendations, and the rationale for these recommendations, are reported and discussed here.

Burchell, T.; Bratton, R.; Windes, W.

2007-09-30T23:59:59.000Z

428

The response of selected diverse sorghums to latitudinal environment variations in Texas  

E-Print Network [OSTI]

, and distance between rows during the growing season at six locations in Texas, 1975. 18 4, Mean solar radiation during stages of growth of grain sorghum at six locations in Texas, 1950-1972. . . . . . . . . . . 21 5. Variations of daylength at different... locations in Texas throughout growing season. 21 6. Average temperatures (maximum, minimum, mean and x ? 60) during stages of growth of grain sorghum at six locations in Texas, 1975. 23 7. Mean and coefficient of variation of yield and plant...

Mena, Hector Armando

1976-01-01T23:59:59.000Z

429

Survival of selected pine seed sources with different seedling treatments on droughty sites in East Texas  

E-Print Network [OSTI]

zantle af the mycorrhizal association creates a zmchanical or physical barrier to certain root pathogens (Marx 1971). Moreover mycorrhizal fungi any also help by directly reducing certain soil pathogens causing damping off and root rot (Tinus and Mc... (Thames 1963). This is because the rows of stcmata are f~ apart (van Buijtenen et al. 1975). The ~ of stcmata per needle and per square millimeter of surface area are significantly less on ~ngs fran the Lest pines than on seedlings frcm wetter sites 29...

Echols, Ralph James

1984-01-01T23:59:59.000Z

430

Bond selective chemistry beyond the adiabatic approximation  

SciTech Connect (OSTI)

One of the most important challenges in chemistry is to develop predictive ability for the branching between energetically allowed chemical reaction pathways. Such predictive capability, coupled with a fundamental understanding of the important molecular interactions, is essential to the development and utilization of new fuels and the design of efficient combustion processes. Existing transition state and exact quantum theories successfully predict the branching between available product channels for systems in which each reaction coordinate can be adequately described by different paths along a single adiabatic potential energy surface. In particular, unimolecular dissociation following thermal, infrared multiphoton, or overtone excitation in the ground state yields a branching between energetically allowed product channels which can be successfully predicted by the application of statistical theories, i.e. the weakest bond breaks. (The predictions are particularly good for competing reactions in which when there is no saddle point along the reaction coordinates, as in simple bond fission reactions.) The predicted lack of bond selectivity results from the assumption of rapid internal vibrational energy redistribution and the implicit use of a single adiabatic Born-Oppenheimer potential energy surface for the reaction. However, the adiabatic approximation is not valid for the reaction of a wide variety of energetic materials and organic fuels; coupling between the electronic states of the reacting species play a a key role in determining the selectivity of the chemical reactions induced. The work described below investigated the central role played by coupling between electronic states in polyatomic molecules in determining the selective branching between energetically allowed fragmentation pathways in two key systems.

Butler, L.J. [Univ. of Chicago, IL (United States)

1993-12-01T23:59:59.000Z

431

Cornsweet surfaces for selective contrast enhancement  

E-Print Network [OSTI]

35 40 Our Method Trentacoste et al. a. Counts per participant b. Post-hoc ordering Figure 16: Per-participant results. The left bar charts show how often the two methods were selected by each participant, while the right plot shows group- ings... artefacts, the magnitude of the low-pass image, and therefore the Cornsweet profiles, can be adjusted to fit the given image. While such editing is suffi- cient for single images, it is not suitable for automatic applica- tions and mass editing of image...

Lieng, Henrik; Pouli, Tania; Reinhard, Erik; Kosinka, Ji?; Dodgson, Neil A.

2014-04-16T23:59:59.000Z

432

Selected problems in automobile dealership accounting  

E-Print Network [OSTI]

OhONO JCNh$1$ ~ ~ ~ ~ ~ ~ ~ a ~ ~ ~ oe Al lIIe 005lOFILl WOLOk' 0 SSXSRN 8hNCo ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ so SELECTED PROHLENS IN AUTONOSILE DEALERSHIP ACCOJNTIl& CHAPTER I INTRODUCTION In many respeots the automobile dealer is the proto type... of the 1ndependent small bus1ness man. Pew autoaobile dealers operate on a oapital of less than $2$, 000, and in many small towns, the leading automobile healer is the largest in4ependent business msn. Yet few dealerships go beyond the range of a small...

Simmons, Douglas Lee

1957-01-01T23:59:59.000Z

433

Corrosion reference for geothermal downhole materials selection  

SciTech Connect (OSTI)

Geothermal downhole conditions that may affect the performance and reliability of selected materials and components used in the drilling, completion, logging, and production of geothermal wells are reviewed. The results of specific research and development efforts aimed at improvement of materials and components for downhole contact with the hostile physicochemical conditions of the geothermal reservoir are discussed. Materials and components covered are tubular goods, stainless steels and non-ferrous metals for high-temperature downhole service, cements for high-temperature geothermal wells, high-temperature elastomers, drilling and completion tools, logging tools, and downhole pumps. (MHR)

Ellis, P.F. II, Smith, C.C.; Keeney, R.C.; Kirk, D.K.; Conover, M.F.

1983-03-01T23:59:59.000Z

434

Project specific selection of decommissioning techniques  

SciTech Connect (OSTI)

Three decommissioning projects with quite different contamination characteristics were terminated with the requested result of freely released rooms for dismantled buildings under supervision of the responsible authorities. The examples show that control areas with different kinds of contamination and different equipment can be decommissioned with reasonable effort. The specific selection of decontamination methods and measurement techniques optimizes the performance of the project and lowers the amount of primary and secondary active waste. The careful planning of radiation protection measures ensures the safe work within the foreseen time schedule.

Christ, B.G.; Wehner, E.L. [NUKEM GmbH, Alzenau (Germany). Nuclear Technology Div.

1993-12-31T23:59:59.000Z

435

Three small businesses selected for environmental work  

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 ConchasPassiveSubmittedStatus TomAboutManusScienceThe43068G. ThundatSmall businesses selected

436

Molecular Selectivity of Brown Carbon Chromophores. | EMSL  

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 ProgramModification and Application ofofMolecularSelectivity of

437

Source Selection Guide | 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 Career Scientists' Research |RegulationRenewable Energy (EERE)SmartRemarksonSunShot fundsJuneOnSelection

438

High School Co-op Program Selection Process  

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

Selection Process High School Co-op Program Selection Process Point your career towards Los Alamos Lab: work with the best minds on the planet in an inclusive environment that is...

439

High-Temperature Solar Selective Coating Development for Power...  

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

High-Temperature Solar Selective Coating Development for Power Tower Receivers - FY13 Q2 High-Temperature Solar Selective Coating Development for Power Tower Receivers - FY13 Q2...

440

High-Temperature Solar Selective Coating Development for Power...  

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

High-Temperature Solar Selective Coating Development for Power Tower Receivers - FY13 Q1 High-Temperature Solar Selective Coating Development for Power Tower Receivers - FY13 Q1...

Note: This page contains sample records for the topic "row selected 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

An open source software selection process and a case study  

E-Print Network [OSTI]

In this study, I design an empirical open source software selection process, which reuses some ideas from Commercial Off-the-Shelf selection methods and addresses the characteristics of the open source software. Basically, it consists of three basic...

He, Guobin

2009-06-02T23:59:59.000Z

442

Phase selectively soluble polymer supports to facilitate homogeneous catalysis  

E-Print Network [OSTI]

Soluble polymers that have phase selective solubility are useful in synthesis because they simplify purification and separation. Such selectively soluble polymers simplify catalyst, reagent, and product recovery and enable the use of Green chemistry...

Ortiz-Acosta, Denisse

2009-05-15T23:59:59.000Z

443

Student Semi-Finalist Teams Selected to Help Advance Geothermal...  

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

Student Semi-Finalist Teams Selected to Help Advance Geothermal Energy Student Semi-Finalist Teams Selected to Help Advance Geothermal Energy May 1, 2013 - 1:40pm Addthis The U.S....

444

Learning-Derived Cost Evolution in Materials Selection  

E-Print Network [OSTI]

Materials selection is a complex, but important, problem for manufacturing firms. Poor material choices can negatively affect the firm's market share or profits. In the face of this complexity, most selection methods make ...

Montalbo, Trisha M., 1980-

2010-01-01T23:59:59.000Z

445

Energy Department Opens Competition to Select Student Teams for...  

Office of Environmental Management (EM)

Opens Competition to Select Student Teams for Solar Decathlon 2015 Energy Department Opens Competition to Select Student Teams for Solar Decathlon 2015 November 1, 2013 - 3:17pm...

446

Efficient Stepwise Selection in Decomposable Models Amol Deshpande  

E-Print Network [OSTI]

for model selection and parameter estimation are being developed by researchers in these areas [PPL97, Hin99

Jordan, Michael I.

447

Efficient Stepwise Selection in Decomposable Models Amol Deshpande \\Lambda  

E-Print Network [OSTI]

for model selection and parameter estimation are being developed by researchers in these areas [PPL97, Hin99

Garofalakis, Minos

448

acid induces selective: Topics by E-print Network  

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

complementarity and entanglement. Utilizing the phase selective manipulations with enviroment, it is demonstrated how the complementarity particularly induces a preservation...

449

On-Site Wastewater Treatment Systems: Selecting and Permitting (Spanish)  

E-Print Network [OSTI]

This publication explains how to select and obtain a permit for an on-site wastewater treatment system in Texas....

Lesikar, Bruce J.

2005-04-30T23:59:59.000Z

450

Feature selection in high dimensional regression problems for genomics  

E-Print Network [OSTI]

Feature selection in high dimensional regression problems for genomics Julie Hamon1,2,3 , Clarisse, France julien.jacques@lifl.fr Abstract. In the context of genomic selection in animal breeding and "closed to real" datasets. Keywords: Feature selection, combinatorial optimization, regression, genomic. 1

Paris-Sud XI, Université de

451

Selective Electroless Nickel Plating of Particle Arrays on Polyelectrolyte Multilayers  

E-Print Network [OSTI]

Selective Electroless Nickel Plating of Particle Arrays on Polyelectrolyte Multilayers Ilsoon Lee Received June 30, 2003. Revised Manuscript Received September 25, 2003 Selective electroless nickel plating, it was demonstrated that selective electroless nickel plating on complex 3-D microstructures with submicron resolution

Lee, Ilsoon

452

Original article Selection for acrolein tolerance in Drosophila  

E-Print Network [OSTI]

Original article Selection for acrolein tolerance in Drosophila melanogaster L.M. Sierra' M the tolerance of D. melanogaster to the toxic action of acrolein, was carried out. At both temperatures between the lines selected at 17 °C and 24 °C were found. toxic tolerance - acrolein - selection

Paris-Sud XI, Université de

453

Environment-contingent sexual selection in a colour polymorphic fish  

E-Print Network [OSTI]

Environment-contingent sexual selection in a colour polymorphic fish Suzanne M. Gray1,*, Lawrence M environment can influence sexual selection on colourful male secondary traits such that selective advantage is environment contingent. Using a small fish endemic to Sulawesi, Indonesia (Telmatherina sarasinorum) that has

Dill, Lawrence M.

454

Random Selection with an Adversarial Majority Ronen Gradwohl  

E-Print Network [OSTI]

the problem of random selection, where p players follow a protocol to jointly select a random element to jointly make a random choice from a universe of size n. They follow some protocol, and if all parties play selection is a very useful building block for distributed algorithms and cryptographic protocols, because

Zuckerman, David

455

Fault detection and diagnosis capabilities of test sequence selection  

E-Print Network [OSTI]

Review Fault detection and diagnosis capabilities of test sequence selection methods based on the FSM model T Ramalingam*, Anindya Dast and K ThuIasiraman* Different test sequence selection methods resolution in diagnosing the fault. The test sequence selection methods are then compared based on the length

Thulsiraman, Krishnaiyan

456

Selective thermal and photooxidation of hydrocarbons in zeolites by oxygen  

DOE Patents [OSTI]

A process is described for selective thermal oxidation or photooxidation of hydrocarbons adsorbed onto zeolite matrices. A highly selective thermal oxidation and photooxidation of unsubstituted or alkyl substituted alkanes, alkenes, aromatics and cycloalkyls in solvent free zeolites under dark thermal conditions or under irradiation with visible light. The process oxidizes hydrocarbons almost completely selectively without substantial production of byproducts. 19 figs.

Frei, H.; Blatter, F.; Sun, H.

1999-06-22T23:59:59.000Z

457

Sex Selection and Gender Balance Department of Economics  

E-Print Network [OSTI]

sex ratios, and the problem of "missing women" (Sen, 1990), a problem that was already noted-killer".1 Modern medicine has aggravated the problem by facilitating selection for boys. The development possible, permitting sex selective abortion. Sex selective abortion is illegal in China and India

Bandyopadhyay, Antar

458

Selective thermal and photooxidation of hydrocarbons in zeolites by oxygen  

DOE Patents [OSTI]

A process for selective thermal oxidation or photooxidation of hydrocarbons adsorbed onto zeolite matrices. A highly selective thermal oxidation and photooxidation of unsubstituted or alkyl substituted alkanes, alkenes, aromatics and cycloalkyls in solvent free zeolites under dark thermal conditions or under irradiation with visible light. The process oxidizes hydrocarbons almost completely selectively without substantial production of byproducts.

Frei, Heinz (Berkeley, CA); Blatter, Fritz (Basel, CH); Sun, Hai (Saint Charles, MO)

1999-01-01T23:59:59.000Z

459

Selective thermal oxidation of hydrocarbons in zeolites by oxygen  

DOE Patents [OSTI]

A process for selective thermal oxidation of hydrocarbons adsorbed onto zeolite matrices. A highly selective thermal oxidation of unsubstituted or alkyl substituted alkanes, alkenes, aromatics and cycloalkyls is carried out in solvent free zeolites under dark thermal conditions. The process oxidizes hydrocarbons almost completely selectively without substantial production of byproducts.

Frei, Heinz (Berkeley, CA); Blatter, Fritz (Basel, CH); Sun, Hai (Saint Charles, MO)

2000-01-01T23:59:59.000Z

460

Selective thermal and photooxidation of hydrocarbons in zeolites by oxygen  

DOE Patents [OSTI]

A process for a combined selective thermal oxidation and photooxidation of hydrocarbons adsorbed onto zeolite matrices. A highly combined selective thermal oxidation and photooxidation of unsubstituted or alkyl substituted alkanes, alkenes, aromatics and cycloalkyls in solvent free zeolites under dark thermal conditions or under irradiation with visible light. The process oxidizes hydrocarbons almost completely selectively without substantial production of byproducts.

Frei, Heinz (Berkeley, CA); Blatter, Fritz (Basel, CH); Sun, Hai (Saint Charles, MO)

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "row selected 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

Vacuum Selection on the String Landscape  

E-Print Network [OSTI]

I examine some non-anthropic approaches to the string landscape. These approaches are based on finding the initial conditions of the universe using the wavefunction of the multiverse to select the most probable vacuum out of this landscape. All approaches tackled so far seems to have their own problems and there is no clear cut alternative to anthropic reasoning. I suggest that finding the initial conditions may be irrelevant since all possible vacua on the landscape are possible initial state conditions and eternal inflation could generate all the other vacua. We are now left to reason out why we are observing the small value of the cosmological constant (CC). I address this issue in the contest of noncritical string theory in which all values of the cosmological constant on the landscape are departures from critical equilibrium state.

Edward Tetteh-Lartey

2007-05-08T23:59:59.000Z

462

Uranium Metal Analysis via Selective Dissolution  

SciTech Connect (OSTI)

Uranium metal, which is present in sludge held in the Hanford Site K West Basin, can create hazardous hydrogen atmospheres during sludge handling, immobilization, or subsequent transport and storage operations by its oxidation/corrosion in water. A thorough knowledge of the uranium metal concentration in sludge therefore is essential to successful sludge management and waste process design. The goal of this work was to establish a rapid routine analytical method to determine uranium metal concentrations as low as 0.03 wt% in sludge even in the presence of up to 1000-fold higher total uranium concentrations (i.e., up to 30 wt% and more uranium) for samples to be taken during the upcoming sludge characterization campaign and in future analyses for sludge handling and processing. This report describes the experiments and results obtained in developing the selective dissolution technique to determine uranium metal concentration in K Basin sludge.

Delegard, Calvin H.; Sinkov, Sergey I.; Schmidt, Andrew J.; Chenault, Jeffrey W.

2008-09-10T23:59:59.000Z

463

Selection of non-adsorbing alkali components  

SciTech Connect (OSTI)

This project consists of three phases of laboratory experimental study. In phase I (screening), eight candidate materials, 304SS (serves as a base material for comparison), Hastelloy C-276, Hastelloy X, Haynes No. 188, Allonized 304SS, Pt-coated 304SS, and ceramic-coated 304SS, will be subjected to atmospheric TGA study under the simulated PFBC (oxidizing) environment with and without alkali vapor doping. Each candidate material will be evaluated for its resistance toward alkali-vapor capture. In addition, a post-test metallographic characterization of the sample will be performed to obtain a better understanding of the alkali capture mechanism and material behavior. The material(s) with little or no alkali-vapor adsorption will be selected as the promising material(s) for the Phase II study. In Phase II, the promising material(s) will be further tested in the TGA under elevated pressure to simulate the PFBC environment (in terms of temperature, pressure, and gas composition). The effect of pressure on the extent of alkali-vapor adsorption will be evaluated, and the test samples will be metallographically characterized. The most promising candidate material(s) will be identified and recommended for further tesfing in the actual PFBC environment. In Phase III, four materials will be selected from the eight candidate materials screened in the PFBC environment and will be evaluated for their alkali-vapor capture by atmospheric TGA under the coal gasification fuel gas (reducing) environment. The tested samples will also be metallographically characterized. The most promising material(s) will be identified and recommended for further testing in the actual coal gasification environment.

Lee, S.H.D.; Natesan, K.; Swift, W.M.

1992-01-01T23:59:59.000Z

464

Selection of non-adsorbing alkali components  

SciTech Connect (OSTI)

This project consists of three phases of laboratory experimental study. In phase I (screening), eight candidate materials, 304SS (serves as a base material for comparison), Hastelloy C-276, Hastelloy X, Haynes No. 188, Allonized 304SS, Pt-coated 304SS, and ceramic-coated 304SS, will be subjected to atmospheric TGA study under the simulated PFBC (oxidizing) environment with and without alkali vapor doping. Each candidate material will be evaluated for its resistance toward alkali-vapor capture. In addition, a post-test metallographic characterization of the sample will be performed to obtain a better understanding of the alkali capture mechanism and material behavior. The material(s) with little or no alkali-vapor adsorption will be selected as the promising material(s) for the Phase II study. In Phase II, the promising material(s) will be further tested in the TGA under elevated pressure to simulate the PFBC environment (in terms of temperature, pressure, and gas composition). The effect of pressure on the extent of alkali-vapor adsorption will be evaluated, and the test samples will be metallographically characterized. The most promising candidate material(s) will be identified and recommended for further tesfing in the actual PFBC environment. In Phase III, four materials will be selected from the eight candidate materials screened in the PFBC environment and will be evaluated for their alkali-vapor capture by atmospheric TGA under the coal gasification fuel gas (reducing) environment. The tested samples will also be metallographically characterized. The most promising material(s) will be identified and recommended for further testing in the actual coal gasification environment.

Lee, S.H.D.; Natesan, K.; Swift, W.M.

1992-11-01T23:59:59.000Z

465

Molecular Selectivity of Brown Carbon Chromophores  

SciTech Connect (OSTI)

Complementary methods of high-resolution mass spectrometry and micro-spectroscopy were utilized for molecular analysis of secondary organic aerosol (SOA) generated from ozonolysis of two structural monoterpene isomers: D-limonene (LSOA) and a-pinene (PSOA). Laboratory simulated aging of LSOA and PSOA, through conversion of carbonyls into imines mediated by NH3 vapors in humid air, resulted in selective browning of the LSOA sample, while the PSOA sample remained white. Comparative analysis of the reaction products in the aged LSOA and PSOA samples provided insights into chemistry relevant to formation of brown carbon chromophores. A significant fraction of carbonyl-imine conversion products with identical molecular formulas were detected in both samples. This reflects the high level of similarity in the molecular composition of these two closely related SOA materials. Several highly conjugated products were detected exclusively in the brown LSOA sample and were identified as potential chromophores responsible for the observed color change. The majority of the unique products in the aged LSOA sample with the highest number of double bonds contain two nitrogen atoms. We conclude that chromophores characteristic of the carbonyl- imine chemistry in LSOA are highly conjugated oligomers of secondary imines (Schiff bases) present at relatively low concentrations. Formation of this type of conjugated compounds in PSOA is hindered by the structural rigidity of the a-pinene oxidation products. Our results suggest that the overall light-absorbing properties of SOA may be determined by trace amounts of strong brown carbon chromophores.

Laskin, Julia; Laskin, Alexander; Nizkorodov, Sergey; Roach, Patrick J.; Eckert, Peter A.; Gilles, Mary K.; Wang, Bingbing; Lee, Hyun Ji; Hu, Qichi

2014-09-18T23:59:59.000Z

466

Coal production expansion: a selected bibliography  

SciTech Connect (OSTI)

The expeditious and economic transport of coal from producing regions to consuming regions is essential to any policy designed to increase the use of coal as an energy source. Obtaining an optimal coal transportation system, including terminal facilities, is significant in providing US coal to its users in the United States and abroad. Rail, barge, truck, slurry pipeline, and ship are the modes used to move coal from the producer to the user. Transportation costs represent a large percentage of the delivered price. This bibliography includes 138 selected citations on coal export, transport, and production. The references are to reports from the Department of Energy and its contractors, reports from other government or private organizations, and journal articles, books, conference papers, and monographs from US originators. These citations and hundreds of additional citations on this subject are available for on-line searching and retrieval from the Technical Information Center's Energy Data Base using the DOE/RECON interactive system. Approximately 50,000 citations on coal and coal products are a part of this data base. Current additions to data base on this subject are announced monthly in Fossil Energy Update. DOE-sponsored work is also announced in Energy Research Abstracts. The citations in this publication are arranged in broad subject categories as shown in the table of contents. Five indexes are provided: Corporate, Author, Subject, Contract Number, and Report Number. Included as an appendix are some tables and figures from Energy Information Administration reports covering coal production and disposition.

Grissom, M.C. (ed.)

1980-07-01T23:59:59.000Z

467

Selection of fluids for tritium pumping systems  

SciTech Connect (OSTI)

The degradation characteristics of three types of vacuum pump fluids, polyphenyl ethers, perfluoropolyethers and hydrocarbon oils were reviewed. Fluid selection proved to be a critical factor in the long-term performance of tritium pumping systems and subsequent tritium recovery operations. Thermal degradation and tritium radiolysis of pump fluids produce contaminants which can damage equipment and interfere with tritium recovery operations. General characteristics of these fluids are as follows: polyphenyl ether has outstanding radiation resistance, is very stable under normal diffusion pump conditions, but breaks down in the presence of oxygen at anticipated operating temperatures. Perfluoropolyether fluids are very stable and do not react chemically with most gases. Thermal and mechanical degradation products are inert, but the radiolysis products are very corrosive. Most of the degradation products of hydrogen oils are volatile and the principal radiolysis product is methane. Our studies show that polyphenyl ethers and hydrocarbon oils are the preferred fluids for use in tritium pumping systems. No corrosive materials are formed and most of the degradation products can be removed with suitable filter systems.

Chastagner, P

1984-02-01T23:59:59.000Z

468

E-Print Network 3.0 - aptamers selectively enter Sample Search...  

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

selectively enter Search Powered by Explorit Topic List Advanced Search Sample search results for: aptamers selectively enter Page: << < 1 2 3 4 5 > >> 1 Analysis of Selection...

469

Information Gain Based Dimensionality Selection for Classifying Text Documents  

SciTech Connect (OSTI)

Selecting the optimal dimensions for various knowledge extraction applications is an essential component of data mining. Dimensionality selection techniques are utilized in classification applications to increase the classification accuracy and reduce the computational complexity. In text classification, where the dimensionality of the dataset is extremely high, dimensionality selection is even more important. This paper presents a novel, genetic algorithm based methodology, for dimensionality selection in text mining applications that utilizes information gain. The presented methodology uses information gain of each dimension to change the mutation probability of chromosomes dynamically. Since the information gain is calculated a priori, the computational complexity is not affected. The presented method was tested on a specific text classification problem and compared with conventional genetic algorithm based dimensionality selection. The results show an improvement of 3% in the true positives and 1.6% in the true negatives over conventional dimensionality selection methods.

Dumidu Wijayasekara; Milos Manic; Miles McQueen

2013-06-01T23:59:59.000Z

470

Molecular sieve sensors for selective detection at the nanogram level  

DOE Patents [OSTI]

The invention relates to a selective chemical sensor for selective detection of chemical entities even at the nanogram level. The invention further relates to methods of using the sensor. The sensor comprises: (a) a piezoelectric substrate capable of detecting mass changes resulting from adsorption of material thereon; and (b) a coating applied to the substrate, which selectively sorbs chemical entities of a size smaller than a preselected magnitude.

Bein, Thomas (Albuquerque, NM); Brown, Kelly D. (Albuquerque, NM); Frye, Gregory C. (Albuquerque, NM); Brinker, Charles J. (Albuquerque, NM)

1992-01-01T23:59:59.000Z

471

Evaluation of six cycles of reciprocal recurrent selection in maize  

E-Print Network [OSTI]

. The progress obtained was measured by the yield nf selections x composites and frequency di. stributions of higher yieldin- elec- tions. Variability was estimated by the standard deviatson, co- efficient of variation, and range of the . elections... ? composites yield trials. Coefficients of inbreeding were also calculated for each composite at th. . beginning of every cycle, Results indicated t?. at reciprocal recurrent selection improved the frequency of higher yielding selections in the Ferguson...

Llorente, Carlos Fernando

1970-01-01T23:59:59.000Z

472

A Guide to Insulation Selection for Industrial Applications  

E-Print Network [OSTI]

of new insulations on th mar ket, it is important that the insulation selection process be upgraded. Insulation peci fications need to be reviewed in terms of new products and installation techniques. Also, the specific application or end use should... be critically analyzed to determine whic~ pro f ducts are best suited for that application. INSULATION MATERIAL SELECTION The selection and specification of insulation materials can be broken down int two I separate but interrelated activities. The first...

Harrison, M. R.

1979-01-01T23:59:59.000Z

473

Supercritical Fluid Immersion Deposition: A New Process for Selective...  

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

property of immersion deposition, enables the SFID technique to selectively deposit metal films in small features. SFID may also provide a new method to fabricate palladium...

474

Selective Removal of Lanthanides from Natural Waters, Acidic...  

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

Removal of Lanthanides from Natural Waters, Acidic Streams and Dialysate. Selective Removal of Lanthanides from Natural Waters, Acidic Streams and Dialysate. Abstract: The...

475

Optimal Technology Selection and Operation of Microgrids in Commercial Buildings  

E-Print Network [OSTI]

L ABORATORY Optimal Technology Selection and Operation ofEnvironmental Energy Technologies Division 15 January 2007for Electric Reliability Technology Solutions with funding

Marnay, Chris; Venkataramanan, Giri; Stadler, Michael; Siddiqui, Afzal; Firestone, Ryan; Chandran, Bala

2008-01-01T23:59:59.000Z

476

Characterization of ion selective membranes for application in reverse  

E-Print Network [OSTI]

Characterization of ion selective membranes for application in reverse electrodialysis systems I would have imagined when I started. i #12;Abstract Reverse electrodialysis (RED) is a renewable

Kjelstrup, Signe

477

Selective Capture of Cesium and Thallium from Natural Waters...  

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

Capture of Cesium and Thallium from Natural Waters and Simulated Wastes with Copper Ferrocyanide Functionalized Selective Capture of Cesium and Thallium from Natural Waters and...

478

High-Temperature Solar Selective Coating Development for Power...  

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

are low risk Goal: Develop solar selective coatings for next- generation concentrated solar power towers that exhibit high absorptance with low thermal emittance, that can...

479

Table 22. Domestic Crude Oil First Purchase Prices for Selected...  

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

Form EIA-182, "Domestic Crude Oil First Purchase Report." 22. Domestic Crude Oil First Purchase Prices for Selected Crude Streams 44 Energy Information Administration...

480

DOE Selects Contractor for California Energy Technology Engineering...  

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

California Energy Technology Engineering Center Cleanup DOE Selects Contractor for California Energy Technology Engineering Center Cleanup June 26, 2014 - 12:00pm Addthis Media...

Note: This page contains sample records for the topic "row selected 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

Prices by Sales Type, PAD District, and Selected States  

Gasoline and Diesel Fuel Update (EIA)

District, and Selected States b (Cents per Gallon Excluding Taxes) - Continued Geographic Area Month Sales to End Users Sales for Resale Residential Consumers Commercial...

482

Selective Catalytic Reduction and Exhaust Gas Recirculation Systems...  

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

Reduction and Exhaust Gas Recirculation Systems Optimization Selective Catalytic Reduction and Exhaust Gas Recirculation Systems Optimization A patented EGR-SCR approach was shown...

483

Selective aerobic oxidation of hydrocarbons over supported gold catalysts.  

E-Print Network [OSTI]

??The selective oxidation of hydrocarbons is of vital importance for the production of valuable chemicals from crude oil and natural gas resources. Unfortunately, when using (more)

Hereijgers, B.P.C.

2011-01-01T23:59:59.000Z

484

Use Remote Sensing Data (selected visible and infrared spectrums...  

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

Use Remote Sensing Data (selected visible and infrared spectrums) to locate high temperature ground anomalies in Colorado. Confirm heat flow potential with on-site surveys to drill...

485

Crown Ethers in Graphene Bring Strong, Selective Binding | ornl...  

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

Materials Characterization Crown Ethers in Graphene Bring Strong, Selective Binding November 14, 2014 Schematic showing a graphene sheet containing an array of ideal crown ethers....

486

High-Temperatuer Solar Selective Coating Development for Power...  

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

Evaluate refractory metal compounds * Develop surface modification techniques to enhance solar selectivity * Incorporate cost and durability into LCOE-like metric that can compare...

487

Competitive Subcontract Selection in Utility Energy Service Contracts  

Broader source: Energy.gov [DOE]

Presentation covers subcontract selections in utility energy service contracts and is given at the Spring 2011 Federal Utility Partnership Working Group (FUPWG) meeting.

488

Selective reduction of NOx in oxygen rich environments with plasma...  

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

reduction of NOx in oxygen rich environments with plasma-assisted catalysis: Catalyst development and mechanistic studies Selective reduction of NOx in oxygen rich environments...

489

assays high selectivity: Topics by E-print Network  

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

Analysis Afshari, Ehsan 104 Stresa, Italy, 25-27 April 2007 SELECTION OF HIGH STRENGTH ENCAPSULANT FOR MEMS DEVICES Physics Websites Summary: devices during high pressure...

490

Method for isotope enrichment of mercury-196 by selective photoionization  

DOE Patents [OSTI]

A method is provided for selectively photoionizing .sup.196 Hg atoms in a vapor utilizing a three or four-step photoionization process.

Paisner, Jeffrey A. (San Ramon, CA); Crane, John K. (Pleasanton, CA)

1988-01-01T23:59:59.000Z

491

Biofuel Feedstock Assessment For Selected Countries  

SciTech Connect (OSTI)

Findings from biofuel feedstock production assessments and projections of future supply are presented and discussed. The report aims to improve capabilities to assess the degree to which imported biofuel could contribute to meeting future U.S. targets to reduce dependence on imported oil. The study scope was focused to meet time and resource requirements. A screening process identified Argentina, Brazil, Canada, China, Colombia, India, Mexico, and the Caribbean Basin Initiative (CBI) region for initial analysis, given their likely role in future feedstock supply relevant to U.S. markets. Supply curves for selected feedstocks in these countries are projected for 2012, 2017 and 2027. The supply functions, along with calculations to reflect estimated supplies available for export and/or biofuel production, were provided to DOE for use in a broader energy market allocation study. Potential cellulosic supplies from crop and forestry residues and perennials were also estimated for 2017 and 2027. The analysis identified capacity to potentially double or triple feedstock production by 2017 in some cases. A majority of supply growth is derived from increasing the area cultivated (especially sugarcane in Brazil). This is supplemented by improving yields and farming practices. Most future supplies of corn and wheat are projected to be allocated to food and feed. Larger shares of future supplies of sugarcane, soybean and palm oil production will be available for export or biofuel. National policies are catalyzing investments in biofuel industries to meet targets for fuel blending that generally fall in the 5-10% range. Social and environmental concerns associated with rapid expansion of feedstock production are considered. If the 2017 projected feedstock supply calculated as 'available' for export or biofuel were converted to fuel, it would represent the equivalent of about 38 billion gallons of gasoline. Sugarcane and bagasse dominate the available supply, representing 64% of the total. Among the nations studied, Brazil is the source of about two-thirds of available supplies, followed distantly by Argentina (12%), India and the CBI region.

Kline, Keith L [ORNL; Oladosu, Gbadebo A [ORNL; Wolfe, Amy K [ORNL; Perlack, Robert D [ORNL; Dale, Virginia H [ORNL

2008-02-01T23:59:59.000Z

492

Biofuel Feedstock Assessment for Selected Countries  

SciTech Connect (OSTI)

Findings from biofuel feedstock production assessments and projections of future supply are presented and discussed. The report aims to improve capabilities to assess the degree to which imported biofuel could contribute to meeting future U.S. targets to reduce dependence on imported oil. The study scope was focused to meet time and resource requirements. A screening process identified Argentina, Brazil, Canada, China, Colombia, India, Mexico, and the Caribbean Basin Initiative (CBI) region for initial analysis, given their likely role in future feedstock supply relevant to U.S. markets. Supply curves for selected feedstocks in these countries are projected for 2012, 2017 and 2027. The supply functions, along with calculations to reflect estimated supplies available for export and/or biofuel production, were provided to DOE for use in a broader energy market allocation study. Potential cellulosic supplies from crop and forestry residues and perennials were also estimated for 2017 and 2027. The analysis identified capacity to potentially double or triple feedstock production by 2017 in some cases. A majority of supply growth is derived from increasing the area cultivated (especially sugarcane in Brazil). This is supplemented by improving yields and farming practices. Most future supplies of corn and wheat are projected to be allocated to food and feed. Larger shares of future supplies of sugarcane, soybean and palm oil production will be available for export or biofuel. National policies are catalyzing investments in biofuel industries to meet targets for fuel blending that generally fall in the 5-10% range. Social and environmental concerns associated with rapid expansion of feedstock production are considered. If the 2017 projected feedstock supply calculated as available for export or biofuel were converted to fuel, it would represent the equivalent of about 38 billion gallons of gasoline. Sugarcane and bagasse dominate the available supply, representing 64% of the total. Among the nations studied, Brazil is the source of about two-thirds of available supplies, followed distantly by Argentina (12%), India and the CBI region.

Kline, K.L.; Oladosu, G.A.; Wolfe, A.K.; Perlack, R.D.; Dale, V.H.

2008-02-18T23:59:59.000Z

493

"Table 11. Fuel Economy, Selected Survey Years (Miles Per Gallon)"  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National and Regional Data; Row: NAICS Codes; Column: Energy SourcesWyoming" "Item","Value","Rank" "Primary Energy

494

Sustainable Material Selection of Toxic Chemicals in Design and Manufacturing From Human Health Impact Perspective  

E-Print Network [OSTI]

in material selection processes for sustainable design andselection process for developing a sustainable materialintegrated sustainable material selection process of toxic

Yuan, Chris; Dornfeld, David

2009-01-01T23:59:59.000Z

495

Selective compensation of voltage harmonics in grid-connected microgrids  

E-Print Network [OSTI]

1 Selective compensation of voltage harmonics in grid-connected microgrids Mehdi Savaghebia , Juan is proposed for selective compensation of main voltage harmonics in a grid- connected microgrid. The aim level. Keywords Distributed Generator (DG); microgrid; grid-connected; voltage harmonics compensation. 1

Vasquez, Juan Carlos

496

Molecular Squares as Molecular Sieves: Size-Selective Transport Through  

E-Print Network [OSTI]

Molecular Squares as Molecular Sieves: Size-Selective Transport Through Porous-Membrane squaresº: cyclic structures typically featuring metal-ion cor- ners and difunctional bridging ligands processes: size-selective molecular transport from a guest-containing solution to one initially free

497

SELECTIVITY OF TOWED-NET SAMPLERS RICHARD A. BARKLEY'  

E-Print Network [OSTI]

SELECTIVITY OF TOWED-NET SAMPLERS RICHARD A. BARKLEY' ABSTRACf The ideal sampler for plankton theoretical analysis of one aspect of selectivity, avoidance of towed-net samplers. The theory is evaluated against three sets of paired samples obtained by different nets at different speeds to provide absolute

498

Designed amyloid fibers as materials for selective carbon dioxide capture  

E-Print Network [OSTI]

Designed amyloid fibers as materials for selective carbon dioxide capture Dan Lia,b,c,1 , Hiroyasu demonstrate that amyloids, self-assembling protein fibers, are effective for selective carbon dioxide capture. Solid-state NMR proves that amyloid fibers containing alkylamine groups reversibly bind carbon dioxide

499

Random Selection with an Adversarial Majority # Ronen Gradwohl +  

E-Print Network [OSTI]

We consider the problem of random selection, where p players follow a protocol to jointly select; 1 Introduction Suppose p players wish to jointly make a random choice from a universe of size n block for distributed algorithms and cryptographic protocols, because it allows one to first design

Vadhan, Salil

500

Continental Breakfast $10 Selection of Assorted Bottled Fruit Juices  

E-Print Network [OSTI]

#12;Continental Breakfast $10 Selection of Assorted Bottled Fruit Juices Seasonal Sliced Fresh Fruit Assortment of Freshly Baked Pastries Fresh Brewed Starbucks Coffee, Decaffeinated & Assorted Tazo Teas The American Breakfast Buffet $16 (Minimum of 15 guests) Selection of Assorted Bottled Fruit

Massachusetts at Lowell, University of