Powered by Deep Web Technologies
Note: This page contains sample records for the topic "grain cxs applied" 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.


1

Dense, finely, grained composite materials  

DOE Patents [OSTI]

Dense, finely grained composite materials comprising one or more ceramic phase or phase and one or more metallic and/or intermetallic phase or phases are produced by combustion synthesis. Spherical ceramic grains are homogeneously dispersed within the matrix. Methods are provided, which include the step of applying mechanical pressure during or immediately after ignition, by which the microstructures in the resulting composites can be controllably selected.

Dunmead, Stephen D. (Davis, CA); Holt, Joseph B. (San Jose, CA); Kingman, Donald D. (Danville, CA); Munir, Zuhair A. (Davis, CA)

1990-01-01T23:59:59.000Z

2

Coupling between grain growth and grain rotation  

Science Journals Connector (OSTI)

Grain boundary motion during grain growth or recrystallization is considered as a diffusion process of atomic movement across the boundary. It can be accompanied by subgrain rotation or nanograin rotation. However grain boundary migration can be achieved also by dislocation motion or creep. The evidence is the power law relationship between driving force and boundary velocity for large driving forces and an activation energy which approaches that of self-diffusion at low driving forces and decreases with increasing driving force. The creep mechanism may or may not involve grain rotation. Experimental evidences and dislocation models are discussed in reference to coupling between boundary migration and grain rotation.

Bhakta B. Rath; M. Winning; J. C. M. Li

2007-01-01T23:59:59.000Z

3

APPLIED PHYSICS APPLIED PHYSICS  

E-Print Network [OSTI]

MSc APPLIED PHYSICS #12;MSc APPLIED PHYSICS This taught Masters course is based on the strong research in Applied Physics in the University's Department of Physics. The department has an impressive photonics and quantum optics, Physics and the Life Sciences, and solid state physics. The knowledge gained

Mottram, Nigel

4

Estimating Corn Grain Yields  

E-Print Network [OSTI]

. Background Moisture stress caused by drought will reduce corn grain yields by dis- rupting kernel development, lowering grade, and impeding grain fill. Kernel development of the corn plant is most affected by drought during early vegeta- tive growth stages... stages of development (V8 and V9) also cause the corn plant to develop fewer kernels and to abort developing pollen tubes and kernels. The result is fewer filled rows and fewer developed kernels within each row of an ear, and an overall reduction...

Blumenthal, Jurg M.; Thompson, Wayne

2009-06-12T23:59:59.000Z

5

Understanding for Grain Marketing  

E-Print Network [OSTI]

Understanding for Grain Marketing Commodity Futures and Options CIS1089 The Authors: L.D. MakusContracts A futures contract is a standard- ized contract that is traded on a futures market exchange. The contract. This bulletin presents some marketing tools to help producers recognize the sources of price risk

O'Laughlin, Jay

6

Grains, Water Introduction  

E-Print Network [OSTI]

Grains, Water & Wet Sand Onno Bokhove Introduction Dry Granular Chute Flows: Cantilever Water Waves: Bores Near the Shore Surf Induced Sand Dynamics Discussion Dry Granular Flows, Water Waves & Surf, Water & Wet Sand Onno Bokhove Introduction Dry Granular Chute Flows: Cantilever Water Waves: Bores Near

Wirosoetisno, Djoko

7

CX-011019: Categorical Exclusion Determination | Department of...  

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

Multiscale Modeling and Experimental Approach to Protect Grain Boundaries in Magnesium... CX(s) Applied: A9 Date: 09112013 Location(s): Washington Offices(s): National...

8

Considerations When Using Grain Contracts  

E-Print Network [OSTI]

Grain contracts can help farmers manage the increasing risks of production and the price volatility of the market. This publication explains grain contracts and how to use them wisely as a risk management tool....

Wisner, Robert; McCorkle, Dean

2000-04-07T23:59:59.000Z

9

Influence of Alloy and Solidification Parameters on Grain Refinement in Aluminum Weld Metal due to Inoculation  

SciTech Connect (OSTI)

The goals are: (1) Establish how much Ti/B grain refiner is need to completely refine aluminum weld metal for different alloys and different welding conditions; (2) Characterize how alloy composition and solidification parameters affect weld metal grain refinement; and (3) Apply relevant theory to understand observed behavior. Conclusions are: (1) additions of Ti/B grain refiner to weld metal in Alloys 1050, 5083, and 6082 resulted in significant grain refinement; (2) grain refinement was more effective in GTAW than LBW, resulting in finer grains at lower Ti content - reason is limited time available for equiaxed grain growth in LBW (inability to occlude columnar grain growth); (3) welding travel speed did not markedly affect grain size within GTAW and LBW clusters; and (4) application of Hunt CET analysis showed experimental G to be on the order of the critical G{sub CET}; G{sub CET} was consistently higher for GTAW than for LBW.

Schempp, Philipp [BAM, Germany; Tang, Z. [BIAS, Germany; Cross, Carl E. [Los Alamos National Laboratory; Seefeld, T. [BIAS, Germany; Pittner, A. [BAM, Germany; Rethmeier, M. [BAM, Germany

2012-06-28T23:59:59.000Z

10

Grain Destruction in Interstellar Shocks  

E-Print Network [OSTI]

Interstellar shock waves can erode and destroy grains present in the shocked gas, primarily as the result of sputtering and grain-grain collisions. Uncertainties in current estimates of sputtering yields are reviewed. Results are presented for the simple case of sputtering of fast grains being stopped in cold gas. An upper limit is derived for sputtering of refractory grains in C-type MHD shocks: shock speeds $v_s \\gtrsim 50 \\kms$ are required for return of more than 30\\% of the silicate to the gas phase. Sputtering can also be important for removing molecular ice mantles from grains in two-fluid MHD shock waves in molecular gas. Recent estimates of refractory grain lifetimes against destruction in shock waves are summarized, and the implications of these short lifetimes are discussed.

B. T. Draine

1995-08-16T23:59:59.000Z

11

Grained composite materials prepared by combustion synthesis under mechanical pressure  

DOE Patents [OSTI]

Dense, finely grained composite materials comprising one or more ceramic phase or phase and one or more metallic and/or intermetallic phase or phases are produced by combustion synthesis. Spherical ceramic grains are homogeneously dispersed within the matrix. Methods are provided, which include the step of applying mechanical pressure during or immediately after ignition, by which the microstructures in the resulting composites can be controllably selected.

Dunmead, Stephen D. (Davis, CA); Holt, Joseph B. (San Jose, CA); Kingman, Donald D. (Danville, CA); Munir, Zuhair A. (Davis, CA)

1990-01-01T23:59:59.000Z

12

Theory of Grain Boundary Diffusion  

Science Journals Connector (OSTI)

The previously proposed dependence of the structure of grain boundaries upon the angle of disorientation of the two grains is used as a basis of a quantitative consideration of diffusion along grain boundaries and in particular of the apparent activation energies. At small angles in the dislocation range the diffusion is controlled by volume diffusion mechanism. At high angles near 45° the model of a uniform grain boundary is applicable. In the intermediate range an array of rod-like areas of distorted lattice leads to low or even negative apparent activation energies. The theory is in good agreement with experiment.

R. Smoluchowski

1952-08-01T23:59:59.000Z

13

Alfvénic waves and alignment of large grains  

Science Journals Connector (OSTI)

The alignment of grains under the influence of the Alfvenic waves is discussed. It is shown that even small deviations from grain uniformity result in the alignment of large (l > 6?10?5 cm) grains. The latter res...

A. Lazarian

1994-06-01T23:59:59.000Z

14

Middle Path Coarse Grain Parallelization  

E-Print Network [OSTI]

Backend OpenMP Fortran OpenMP Backend MPI Fortran MPI Backend ½ �� � BPA RB SB Program Near fine grain layer 3rd layer Near fine grain parallelism in loop body BPA RB SB BPA RB SB BPA RB SB BPA RB SB BPA RB SB BPA RB SB ¾ ¾º½º½ � � Á � � � ¾ Data Dependency Extended Contorol Dependency Conditional Branch

Kasahara, Hironori

15

Grain size dependency in sandbank modeling for the case of uniform sediment  

E-Print Network [OSTI]

Grain size dependency in sandbank modeling for the case of uniform sediment D. Idier,1 H. H. van­dependent parameters on the simulated dynamics of the sandbanks for the case of uniform sediment. The model is applied is the dominant sediment transport mode, the model taking into account the grain size dependencies gives a better

Paris-Sud XI, Université de

16

Applied Science  

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

Applied Science Applied Science Correlation of predicted and measured iron oxidation states in mixed iron oxides H. D. Rosenfeld and W. L. Holstein Development of a quantitative measurement of a diesel spray core using synchrotron x-rays C.F. Powell, Y. Yue, S. Gupta, A. McPherson, R. Poola, and J. Wang Localized phase transformations by x-ray-induced heating R.A. Rosenberg, Q. Ma, W. Farrell, E.D. Crozier, G.J. Soerensen, R.A. Gordon, and D.-T. Jiang Resonant x-ray scattering at the Se edge in ferroelectric liquid crystal materials L. Matkin, H. Gleeson, R. Pindak, P. Mach, C. Huang, G. Srajer, and J. Pollmann Synchrotron-radiation-induced anisotropic wet etching of GaAs Q. Ma, D.C. Mancini, and R.A. Rosenberg Synchrotron-radiation-induced, selective-area deposition of gold on

17

Wave propagation, stress relaxation, and grain-to-grain shearing in saturated, unconsolidated marine sediments  

E-Print Network [OSTI]

Wave propagation, stress relaxation, and grain-to-grain shearing in saturated, unconsolidated in saturated, unconsolidated granular materials, including marine sediments, is developed in this article

Buckingham, Michael

18

Golden Grain Energy LLC | Open Energy Information  

Open Energy Info (EERE)

search Name: Golden Grain Energy LLC Place: Mason City, Iowa Zip: 50401 Product: Ethanol producer. References: Golden Grain Energy LLC1 This article is a stub. You can help...

19

Grain boundary loops in graphene  

Science Journals Connector (OSTI)

Topological defects can affect the physical properties of graphene in unexpected ways. Harnessing their influence may lead to enhanced control of both material strength and electrical properties. Here we present a class of topological defects in graphene composed of a rotating sequence of dislocations that close on themselves, forming grain boundary loops that either conserve the number of atoms in the hexagonal lattice or accommodate vacancy or interstitial reconstruction, while leaving no unsatisfied bonds. One grain boundary loop is observed as a “flower” pattern in scanning tunneling microscopy studies of epitaxial graphene grown on SiC(0001). We show that the flower defect has the lowest energy per dislocation core of any known topological defect in graphene, providing a natural explanation for its growth via the coalescence of mobile dislocations.

Eric Cockayne; Gregory M. Rutter; Nathan P. Guisinger; Jason N. Crain; Phillip N. First; Joseph A. Stroscio

2011-05-12T23:59:59.000Z

20

Charging of Dust Grains in a Plasma  

Science Journals Connector (OSTI)

Charging of micron-sized dust grains in a plasma has been investigated experimentally. Dust grains were dispersed into a fully ionized, steady-state, magnetized plasma column consisting of electrons and K+ ions, both at a temperature of ?0.2 eV. Langmuir probe measurements were used to determine how the negative charge in the plasma is divided between free electrons and dust grains. By varying the ratio d?D between the intergrain spacing and the plasma Debye length, the predicted reduction in the grain charge for the case of "closely packed" grains d?D<1 has been demonstrated experimentally.

A. Barkan; N. D'Angelo; R. L. Merlino

1994-12-05T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

Characterisation of ‘Hadley’ grains by confocal microscopy  

Science Journals Connector (OSTI)

This work forms part of an exploratory study to investigate the use of fluorescent laser scanning confocal microscopy (LSCM) for imaging pores and voids in hardened mortar and concrete. The study has revealed the suitability of the technique for the characterisation of hollow shell (Hadley) hydration grains (these are grains that contain a void within the original boundary of the cement grain). It was found that Hadley grains could be imaged using fluorescent light techniques, subsequent to their impregnation by epoxy resin doped with a fluorescent dye. Prior to this work, it was not clear whether hollow grains were impregnated due to connections with capillary pores, or if they had been impregnated due to connections with damage caused during surface preparation (i.e. micro-cracks or deep surface scratches). However using the 3D LSCM imaging technique it was observed that connections between Hadley grains and hardened cement paste (HCP) capillary pores did exist, in different forms, at depths well below the surface providing ‘conduits’ along which resin was able to flow and impregnate the hollow grains. Other aspects of imaging Hadley grains are also described, such as the sectioning of ‘tips’ of larger grains often taken as separate smaller pores or grains in 2D images.

M.K. Head; H.S. Wong; N.R. Buenfeld

2006-01-01T23:59:59.000Z

22

Two pairing parameters in superconducting grains  

Science Journals Connector (OSTI)

Unlike bulk superconductivity, where one energy scale, the energy gap, characterizes pairing correlations, we show that in small superconducting grains there exist two different such quantities. The first characterizes collective properties of the grain, such as the condensation energy, and the second single-particle properties. To describe these two energy scales, we define two corresponding pairing parameters, and show that although both reduce to the bulk gap for large grains, this occurs at different size scales.

M. Schechter; J. von Delft; Y. Imry; Y. Levinson

2003-02-27T23:59:59.000Z

23

Grain orientations and distribution of  

Science Journals Connector (OSTI)

The local grain orientations and the distribution of Y2Ba4CuUOx (U-2411) phase are measured within melt-textured YBCO samples by means of electron backscatter diffraction (EBSD). In this work, several samples with varying addition (0.1–0.8 wt%) of depleted uranium oxide (DU) were analysed by means of EBSD. The embedded U-2411 particles were found to have sizes around 200 nm, some large particles being present in the samples with a high DU concentration. Combined EBSD and EDX analysis enabled the identification of the Kikuchi patterns of the U-2411 phase, so that a true three-phase EBSD scan (YBCO, Y2BaCuO5 and U-2411) becomes possible.

A Koblischka-Veneva; F Mücklich; M R Koblischka; N Hari Babu; D A Cardwell; M Murakami

2006-01-01T23:59:59.000Z

24

Fatigue Threshold R-Curve Behavior of Grain Bridging Ceramics: Role of Grain Size and Grain-Boundary Adhesion  

E-Print Network [OSTI]

unless they experience environmentally assisted subcritical growth during cyclic loading.7 Fatigue-crack (moist air and dry N2). The fine-grained micro- structure showed higher fatigue thresholds at short crack sizes, while the coarse-grained microstructure demonstrated higher fatigue thresholds at long crack

Kruzic, Jamie

25

Scaling Laws for Convection with Temperature-dependent Viscosity and Grain-damage  

E-Print Network [OSTI]

Numerical experiments of convection with grain-damage are used to develop scaling laws for convective heat flow, mantle velocity, and plate velocity across the stagnant lid and plate-tectonic regimes. Three main cases are presented in order of increasing complexity: a simple case wherein viscosity is only dependent on grainsize, a case where viscosity depends on temperature and grainsize, and finally a case where viscosity is temperature and grainsize sensitive, and the grain-growth (or healing) is also temperature sensitive. In all cases, convection with grain-damage scales differently than Newtonian convection due to the effects of grain-damage. For the fully realistic case, numerical results show stagnant lid convection, fully mobilized convection that resembles the temperature-independent viscosity case, and partially mobile or transitional convection, depending on damage to healing ratio, Rayleigh number, and the activation energies for viscosity and healing. Applying our scaling laws for the fully reali...

Foley, Bradford J

2014-01-01T23:59:59.000Z

26

A new model of composite interstellar dust grains  

E-Print Network [OSTI]

The approach to model composite interstellar dust grains, using the exact solution to the light scattering problem for multi-layered spheres as suggested by Voshchinnikov & Mathis (1999), is further developed. Heterogeneous scatteres are represented by particles with very large number of shells, each including a homogeneous layer per material considered (amorphous carbon, astronomical silicate and vacuum). The applicability of the effective medium theory (EMT) mostly utilized earlier to approximate inhomogeneous interstellar grains is examined on the basis of the new model. It is shown that the EMT rules generally have an accuracy of several percent in the whole range of particle sizes provided the porosity does not exceed about 50%. For larger porosity, the EMT rules give wrong results. Using the model, we reanalyze various basic features of cosmic dust -- interstellar extinction, scattered radiation, infrared radiation, radiation pressure, etc. As an example of the potential of the model, it is applied to reproduce the extinction curves in the directions to $\\zeta$ Oph and $\\sigma$ Sco using subsolar cosmic abundances. We also conclude that metallic iron even in negligible amount ($\\la 1$ % by the volume fraction) is unlikely to form a layer on or inside a grain because of peculiar absorption of radiation by such particles.

N. V. Voshchinnikov; V. B. Il'in; Th. Henning; D. N. Dubkova

2003-03-07T23:59:59.000Z

27

CX-010982: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Mechanisms for Methane Transport and Hydrate Accumulation in Coarse-Grained Sediments CX(s) Applied: A9 Date: 09/13/2013 Location(s): Ohio Offices(s): National Energy Technology Laboratory

28

CX-010983: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Mechanisms for Methane Transport and Hydrate Accumulation in Coarse-Grained Sediments CX(s) Applied: A9 Date: 09/13/2013 Location(s): New York Offices(s): National Energy Technology Laboratory

29

CX-011282: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Mechanisms for Methane Transport and Hydrate Accumulation in Coarse-Grained Sediments CX(s) Applied: A9 Date: 09/26/2013 Location(s): Texas Offices(s): National Energy Technology Laboratory

30

CX-011018: Categorical Exclusion Determination | Department of...  

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

Multiscale Modeling and Experimental Approach to Protect Grain Boundaries in Magnesium... CX(s) Applied: A9, B3.6 Date: 09112013 Location(s): Mississippi Offices(s):...

31

Systems simulation of oil additives to grain at terminal elevators  

E-Print Network [OSTI]

in Missouri and Texas. Several of these elevators are using oil additives on a regular basis. In addition to grain samples, operating data such as equipment capacities, operating hours and volume of grain handled were obtained. The grain samples were... in Missouri and Texas. Several of these elevators are using oil additives on a regular basis. In addition to grain samples, operating data such as equipment capacities, operating hours and volume of grain handled were obtained. The grain samples were...

Goforth, Kerry James

2012-06-07T23:59:59.000Z

32

Advancing Biorefining of Distiller's Grain and Corn Stover Blends...  

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

Advancing Biorefining of Distiller's Grain and Corn Stover Blends Advancing Biorefining of Distiller's Grain and Corn Stover Blends This fact sheet summarizes a U.S. Department of...

33

Band-Gap Engineering of Carbon Nanotubes with Grain Boundaries...  

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

Band-Gap Engineering of Carbon Nanotubes with Grain Boundaries. Band-Gap Engineering of Carbon Nanotubes with Grain Boundaries. Abstract: Structure and electronic properties of...

34

Heartland Grain Fuels LP | Open Energy Information  

Open Energy Info (EERE)

Grain Fuels LP Grain Fuels LP Jump to: navigation, search Name Heartland Grain Fuels LP Place Aberdeen, South Dakota Zip 57401 Sector Bioenergy Product Heartland Grain Fuels is a cooperatively-owned producer of corn-derived ethanol that was acquired by Advanced Bioenergy in November 2006. Coordinates 46.975867°, -123.81598° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":46.975867,"lon":-123.81598,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

35

Large Grain Superconducting RF Cavities at DESY  

SciTech Connect (OSTI)

The DESY R and D program on cavities fabricated from large grain niobium explores the potential of this material for the production of approx. 1000 nine-cell cavities for the European XFEL. The program investigates basic material properties, comparing large grain material to standard sheet niobium, as well as fabrication and preparation aspects. Several single-cell cavities of TESLA shape have been fabricated from large grain niobium. A gradient up to 41 MV/m at Q0 = 1.4{center_dot}1010 (TB = 2K) was measured after electropolishing. The first three large grain nine-cell cavities worldwide have been produced under contract of DESY with ACCEL Instruments Co. The first tests have shown that all three cavities reach an accelerating gradient up to 30 MV/m after BCP (Buffered Chemical Polishing) treatment, what exceeds the XFEL requirements for RF test in the vertical cryostat.

Singer, W.; Brinkmann, A.; Ermakov, A.; Iversen, J.; Kreps, G.; Matheisen, A.; Proch, D.; Reschke, D.; Singer, X.; Spiwek, M.; Wen, H.; Brokmeier, H. G. [DESY, Notkestrasse 85, D-22607 Hamburg (Germany); GKSS, Max-Planck-Strasse, D-21502 Geesthacht (Germany)

2007-08-09T23:59:59.000Z

36

Structural optimization and spiralling of the grain in a pine trunk  

E-Print Network [OSTI]

to sustain extreme wind loads applied from all directions. If a natural design becomes more complex, the wind, and even the gravitational e ect of the moon 7 . 1.1.0.2 Factors that control the spiralling symmetry, compute the stresses, and op- timize the angle of the grains inclination using a failure

Cherkaev, Andrej

37

theoretical and applied fracture  

E-Print Network [OSTI]

theoretical and applied fracture mechanics ELSEVIER Theoretical and Applied Fracture Mechanics 00 and Applied Fracture Mechanics 00 (1995) 000-000 Recently, some European countries developed defect specific. A suitable probabilistic fracture mechanic

Cizelj, Leon

38

Characterization of ultra-fine grained aluminum produced by accumulative back extrusion (ABE)  

SciTech Connect (OSTI)

In the present work, the microstructural evolutions and microhardness of AA1050 subjected to one, two and three passes of accumulative back extrusion (ABE) were investigated. The microstructural evolutions were characterized using transmission electron microscopy. The results revealed that applying three passes of accumulative back extrusion led to significant grain refinement. The initial grain size of 47 {mu}m was refined to the grains of 500 nm after three passes of ABE. Increasing the number of passes resulted in more decrease in grain size, better microstructure homogeneity and increase in the microhardness. The cross-section of ABEed specimen consisted of two different zones: (i) shear deformation zone, and (ii) normal deformation zone. The microhardness measurements indicated that the hardness increased from the initial value of 31 Hv to 67 Hv, verifying the significant microstructural refinement via accumulative back extrusion. - Highlights: Black-Right-Pointing-Pointer A significant grain refinement can be achieved in AA1050, Al alloy by applying ABE. Black-Right-Pointing-Pointer Microstructural homogeneity of ABEed samples increased by increasing the number of ABE cycles. Black-Right-Pointing-Pointer A substantial increase in the hardness, from 31 Hv to 67 Hv, was recorded.

Alihosseini, H., E-mail: hamid.alihossieni@gmail.com [Mechanical Engineering Department, University of Tehran, Tehran (Iran, Islamic Republic of); Materials Science and Engineering Department, Engineering School, Amirkabir University, Tehran (Iran, Islamic Republic of); Faraji, G.; Dizaji, A.F. [Mechanical Engineering Department, University of Tehran, Tehran (Iran, Islamic Republic of); Dehghani, K. [Materials Science and Engineering Department, Engineering School, Amirkabir University, Tehran (Iran, Islamic Republic of)

2012-06-15T23:59:59.000Z

39

Metal precipitation at grain boundaries in silicon: Dependence on grain boundary character and dislocation decoration  

E-Print Network [OSTI]

are combined to determine the dependence of metal silicide precipitate formation on grain boundary character and microstructure in multicrystalline silicon mc-Si . Metal silicide precipitate decoration is observed to increase the local metal silicide precipitate concentrations at various types of grain boundaries, identifying clear

40

Internetwork chromospheric bright grains observed with IRIS  

E-Print Network [OSTI]

The Interface Region Imaging Spectrograph (IRIS) reveals small-scale rapid brightenings in the form of bright grains all over coronal holes and the quiet sun. These bright grains are seen with the IRIS 1330 \\AA, 1400 \\AA\\ and 2796 \\AA\\ slit-jaw filters. We combine coordinated observations with IRIS and from the ground with the Swedish 1-m Solar Telescope (SST) which allows us to have chromospheric (Ca II 8542 \\AA, Ca II H 3968 \\AA, H\\alpha, and Mg II k 2796 \\AA), and transition region (C II 1334 \\AA, Si IV 1402) spectral imaging, and single-wavelength Stokes maps in Fe I 6302 \\AA at high spatial (0.33"), temporal and spectral resolution. We conclude that the IRIS slit-jaw grains are the counterpart of so-called acoustic grains, i.e., resulting from chromospheric acoustic waves in a non-magnetic environment. We compare slit-jaw images with spectra from the IRIS spectrograph. We conclude that the grain intensity in the 2796 \\AA\\ slit-jaw filter comes from both the Mg II k core and wings. The signal in the C II ...

Martínez-Sykora, Juan; Carlsson, Mats; De Pontieu, Bart; Pereira, Tiago M D; Boerner, Paul; Hurlburt, Neal; Kleint, Lucia; Lemen, James; Tarbell, Ted D; Title, Alan; Wuelser, Jean-Pierre; Hansteen, Viggo H; Golub, Leon; McKillop, Sean; Reeves, Kathy K; Saar, Steven; Testa, Paola; Tian, Hui; Jaeggli, Sarah; Kankelborg, Charles

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

Midwest Grain Processors MGP | Open Energy Information  

Open Energy Info (EERE)

Midwest Grain Processors MGP Midwest Grain Processors MGP Jump to: navigation, search Name Midwest Grain Processors (MGP) Place Lakota, Iowa Zip 50451 Product Iowa-based bioethanol producer using corn as feedstock. Coordinates 48.042535°, -98.335979° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":48.042535,"lon":-98.335979,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

42

A coarse-graining approach for molecular simulation that retains the dynamics of the all-atom reference system by implementing hydrodynamic interactions  

SciTech Connect (OSTI)

We report on a new approach for deriving coarse-grained intermolecular forces that retains the frictional contribution that is often discarded by conventional coarse-graining methods. The approach is tested for water and an aqueous glucose solution, and the results from the new implementation for coarse-grained molecular dynamics simulation show remarkable agreement with the dynamics obtained from reference all-atom simulations. The agreement between the structural properties observed in the coarse-grained and all-atom simulations is also preserved. We discuss how this approach may be applied broadly to any existing coarse-graining method where the coarse-grained models are rigorously derived from all-atom reference systems.

Markutsya, Sergiy [Ames Laboratory; Lamm, Monica H [Ames Laboratory

2014-11-07T23:59:59.000Z

43

Growth of Smaller Grain Attached on Larger One: Algorithm to Overcome Unphysical Overlap between Grain  

E-Print Network [OSTI]

As a smaller grain, which is attached on larger one, is growing, it pushes also the larger one and other grains in its surrounding. In a simulation of similar system, repulsive force such as contact force based on linear spring-dashpot model can not accommodate this situation when cell growing rate is faster than simulation time step, since it produces sudden large overlap between grains that makes unphysical result. An algorithm that preserves system linear momentum by introducing additional velocity induced by cell growth is presented in this work. It should be performed in an implicit step. The algorithm has successfully eliminated unphysical overlap.

Acep Purqon; Sparisoma Viridi

2014-11-01T23:59:59.000Z

44

The Grain Milling Oilseed Processing Industry  

E-Print Network [OSTI]

& 10 Prepared by: Sondra Rademacher ­ Business Service Specialist, Mankato, Mn. Garey Ferguson ­ Business Service Specialist, Fairmont, Mn. Sue Wold ­ Business Services Specialist, Faribault, Mn. David-19 Diamond of Advantage for Grain and Oilseed Processing Industry Attachment A Minnesota's Food Manufacturing

Levinson, David M.

45

The Flow of Cohesionless Grains in Fluids  

Science Journals Connector (OSTI)

...magnitude of a certain 'bed load' of grains in transit...tangential stress. The bed load is independent both of...any additional suspended load and of the degree of dispersion...found with experimental data both for wind-blown...the square or the first power of the rate of shear...

1956-01-01T23:59:59.000Z

46

POSITION OPENING APPLIED STATISTICS  

E-Print Network [OSTI]

: Assistant or Associate Professor of Applied Statistics. Employment Beginning: September 16, 2012 DescriptionPOSITION OPENING APPLIED STATISTICS Department of Decision Sciences Charles H. Lundquist College at the University of Oregon is seeking to fill one tenure-track faculty position in Applied Statistics. Rank

Shepp, Larry

47

Conservative and dissipative force field for simulation of coarse-grained alkane molecules: A bottom-up approach  

SciTech Connect (OSTI)

We apply operational procedures available in the literature to the construction of coarse-grained conservative and friction forces for use in dissipative particle dynamics (DPD) simulations. The full procedure rely on a bottom-up approach: large molecular dynamics trajectories of n-pentane and n-decane modeled with an anisotropic united atom model serve as input for the force field generation. As a consequence, the coarse-grained model is expected to reproduce at least semi-quantitatively structural and dynamical properties of the underlying atomistic model. Two different coarse-graining levels are studied, corresponding to five and ten carbon atoms per DPD bead. The influence of the coarse-graining level on the generated force fields contributions, namely, the conservative and the friction part, is discussed. It is shown that the coarse-grained model of n-pentane correctly reproduces self-diffusion and viscosity coefficients of real n-pentane, while the fully coarse-grained model for n-decane at ambient temperature over-predicts diffusion by a factor of 2. However, when the n-pentane coarse-grained model is used as a building block for larger molecule (e.g., n-decane as a two blobs model), a much better agreement with experimental data is obtained, suggesting that the force field constructed is transferable to large macro-molecular systems.

Trément, Sébastien; Rousseau, Bernard, E-mail: bernard.rousseau@u-psud.fr [Laboratoire de Chimie-Physique, UMR 8000 CNRS, Université Paris-Sud, Orsay (France)] [Laboratoire de Chimie-Physique, UMR 8000 CNRS, Université Paris-Sud, Orsay (France); Schnell, Benoît; Petitjean, Laurent; Couty, Marc [Manufacture Française des Pneumatiques MICHELIN, Centre de Ladoux, 23 place des Carmes, 63000 Clermont-Ferrand (France)] [Manufacture Française des Pneumatiques MICHELIN, Centre de Ladoux, 23 place des Carmes, 63000 Clermont-Ferrand (France)

2014-04-07T23:59:59.000Z

48

Applied quantum mechanics 1 Applied Quantum Mechanics  

E-Print Network [OSTI]

that describe the time-dependent state . If can be expressed as a power series in the perturbing potential of a one dimensional har- monic oscillator. At time t = 0 a perturbation is applied where V0-dimensional rectangular potential well for which in the range and elsewhere. It is decided to control the state

Levi, Anthony F. J.

49

Grain Refinement of Permanent Mold Cast Copper Base Alloys  

SciTech Connect (OSTI)

Grain refinement is a well established process for many cast and wrought alloys. The mechanical properties of various alloys could be enhanced by reducing the grain size. Refinement is also known to improve casting characteristics such as fluidity and hot tearing. Grain refinement of copper-base alloys is not widely used, especially in sand casting process. However, in permanent mold casting of copper alloys it is now common to use grain refinement to counteract the problem of severe hot tearing which also improves the pressure tightness of plumbing components. The mechanism of grain refinement in copper-base alloys is not well understood. The issues to be studied include the effect of minor alloy additions on the microstructure, their interaction with the grain refiner, effect of cooling rate, and loss of grain refinement (fading). In this investigation, efforts were made to explore and understand grain refinement of copper alloys, especially in permanent mold casting conditions.

M.Sadayappan; J.P.Thomson; M.Elboujdaini; G.Ping Gu; M. Sahoo

2005-04-01T23:59:59.000Z

50

Increasing the Consumption of Whole Grain Foods in School Meals  

E-Print Network [OSTI]

nutritious meals in their cafeterias, while maintaining customer acceptance of the foods. Whether or not students consume whole grains determines if these foods are served again. Input from participants determined which whole grain were foods tested...

Warren, Cynthia Ann

2011-08-08T23:59:59.000Z

51

Suggestions for Controlling Insects in Farm-Stored Grain.  

E-Print Network [OSTI]

storage structures, or too high temperatures and high grain moisture at binning. Importance of Keeping Insects Out of Stored Grains Grain prices are based on clean, dry, wholesome grain. Anythirig that lowers quality also lowers its price. Insect... tetrachloride odor Ethyhme Yes Poor None Sweet Depresses dibromide Ethylene Yes Poor High Ether Little dichloride odor Chloropicrin Yes Poor None Tear gas Depresses Sulfur dioxide Yes None Irritating Destroys Methyl Yes Excellent None None Depresses...

Hamman, Philip J.

1982-01-01T23:59:59.000Z

52

Analytical Chemistry Applied Mathematics  

E-Print Network [OSTI]

Analytical Chemistry Applied Mathematics Architectural Engineering Architecture Architecture Electricity Markets Environmental Engineering Food Process Engineering Food Safety & Technology Architecture Information Technology & Management Integrated Building Delivery Landscape Architecture Management

Heller, Barbara

53

How To Apply  

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

CSCEEE undergraduate students are encouraged to apply. Required Materials Current Resume Official University Transcript (with spring courses posted andor a copy of Spring...

54

Synthesis of fine-grained TATB  

DOE Patents [OSTI]

A method for producing fine-grained triamino-trinitrobenzene (TATB) powders having improved detonation-spreading performance and hence increased shock sensitivity when compared with that for ultrafine TATB is described. A single-step, sonochemical amination of trichloro-trinitrobenzene using ammonium hydroxide solution in a sealed vessel yields TATB having approximately 6 .mu.m median particle diameter and increased shock sensitivity.

Lee, Kien-Yin (Santa Fe, NM); Kennedy, James E. (Santa Fe, NM)

2003-04-15T23:59:59.000Z

55

RFID BASED GRAIN AND OIL PRODUCTS TRACEABILITY1  

E-Print Network [OSTI]

RFID BASED GRAIN AND OIL PRODUCTS TRACEABILITY1 AND ITS COMPUTER IMPLEMENTATION Haiyan Hu ,*2 the study of the traceability of grain and oil products. Include the study contents, and a system we developed for traceability of grain and oil products, and the demonstration of the study. The system we

Boyer, Edmond

56

ANNIVERSARY REVIEW Grain boundary energy anisotropy: a review  

E-Print Network [OSTI]

grain boundary energy anisot- ropy. Experimental methods for measuring the grain boundary energy. The paper contains a brief survey of historical concepts and grain boundary energy measurements. Next an excess free energy per unit area. This is evident by the fact that during most thermal and chemical

Rohrer, Gregory S.

57

Controlling lipid accumulation in cereal grains  

Science Journals Connector (OSTI)

Plant oils have so far been mostly directed toward food and feed production. Nowadays however, these oils are more and more used as competitive alternatives to mineral hydrocarbon-based products. This increasing demand for vegetable oils has led to a renewed interest in elucidating the metabolism of storage lipids and its regulation in various plant systems. Cereal grains store carbon in the form of starch in a large endosperm and as oil in an embryo of limited size. Complementary studies on kernel development and metabolism have paved the way for breeding or engineering new varieties with higher grain oil content. This could be achieved either by increasing the relative proportion of the oil-rich embryo within the grain, or by enhancing oil synthesis and accumulation in embryonic structures. For instance, diacylglycerol acyltransferase (DGAT) that catalyses the ultimate reaction in the biosynthesis of triacylglycerol appears to be a promising target for increasing oil content in maize embryos. Similarly, over-expression of the maize transcriptional regulators ZmLEAFY COTYLEDON1 and ZmWRINKLED1 efficiently stimulates oil accumulation in the kernels of transgenic lines. Redirecting carbon from starch to oil in the endosperm, though not yet realized, is discussed.

Guillaume Barthole; Loïc Lepiniec; Peter M. Rogowsky; Sébastien Baud

2012-01-01T23:59:59.000Z

58

Process for producing large grain cadmium telluride  

DOE Patents [OSTI]

A process is described for producing a cadmium telluride polycrystalline film having grain sizes greater than about 20 {micro}m. The process comprises providing a substrate upon which cadmium telluride can be deposited and placing that substrate within a vacuum chamber containing a cadmium telluride effusion cell. A polycrystalline film is then deposited on the substrate through the steps of evacuating the vacuum chamber to a pressure of at least 10{sup {minus}6} torr.; heating the effusion cell to a temperature whereat the cell releases stoichiometric amounts of cadmium telluride usable as a molecular beam source for growth of grains on the substrate; heating the substrate to a temperature whereat a stoichiometric film of cadmium telluride can be deposited; and releasing cadmium telluride from the effusion cell for deposition as a film on the substrate. The substrate then is placed in a furnace having an inert gas atmosphere and heated for a sufficient period of time at an annealing temperature whereat cadmium telluride grains on the substrate grow to sizes greater than about 20 {micro}m.

Hasoon, F.S.; Nelson, A.J.

1996-01-16T23:59:59.000Z

59

Applied Energy Programs  

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

Applied Energy Programs Applied Energy Programs Applied Energy Programs Los Alamos is using its world-class scientific capabilities to enhance national energy security by developing energy sources with limited environmental impact and by improving the efficiency and reliability of the energy infrastructure. CONTACT US Acting Program Director Melissa Fox (505) 663-5538 Email Applied Energy Program Office serves as the hub connecting the Laboratory's scientific and technical resources to DOE sponsors, DoD programs, and to industry. The Applied Energy Program Office manages Los Alamos National Laboratory programs funded by the Department of Energy's (DOE's) Offices of Energy Efficiency/Renewable Energy, Electricity Delivery and Energy Reliability, and Fossil Energy. With energy use increasing across the nation and the

60

Indicators of Success When Incorporating Whole Grains into School Meals: HealthierUS School Challenge  

E-Print Network [OSTI]

blend whole grain products compared to those made from 100% whole wheat. Additionally, survey participants reported barriers to whole grain food incorporation which included: product acceptability, whole grain product identification, whole grain product...

Sceets, Christine Elizabeth

2012-10-19T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

AEROSPACE SCIENCES Applied aerodynamics  

E-Print Network [OSTI]

AEROSPACE SCIENCES Applied aerodynamics This year saw significant progress in industry, research labs, and academia in the development of flow-control concepts, novel configuration aerodynamic concepts, and aerodynamic im- provement technologies for enhancing the fuel efficiency and performance

Xu, Kun

62

Applied large eddy simulation  

Science Journals Connector (OSTI)

...2971-2983. doi:10.1098/rsta.2008.0303 . Audio Supplement Audio Supplement Audio files from the Applied large eddy simulation...fidelity. | Whittle Laboratory, Department of Engineering, University of Cambridge, Cambridge CB2 1PZ...

2009-01-01T23:59:59.000Z

63

The effects of grain moisture content and grain temperature on the penetration of hydrogen cyanide  

E-Print Network [OSTI]

as the post fumigation time increased (fig. 12). The greatest rate of 24 Figure 7z Penetration of HCN in interstitial air at concentrations of 5G ppm as effected by moisture and temperature at 4 hours. 17 15 65o Rpo 95' 13 lyon j-57 Figure 8... of the requirements for the degree of MASTER OF SCIENCE (Mionth) 1262 (Year) Mayor Subject ghtdlggllQJLK THE EFFECTS OF GRAIN MOISTURE CONTENT JBD GRAIN TEMPERATURE ON THE PENETRATION OF HYDROGEN CYANIDE A Thesis SIDNEY EDNUND KUNZ Approved as to style...

Kunz, Sidney E

2012-06-07T23:59:59.000Z

64

Coarse grained open system quantum dynamics  

SciTech Connect (OSTI)

We show that the quantum dynamics of a system comprised of a subspace Q coupled to a larger subspace P can be recast as a reduced set of 'coarse grained' ordinary differential equations with constant coefficients. These equations can be solved by a single diagonalization of a general complex matrix. The method makes no assumptions about the strength of the couplings between the Q and the P subspaces, nor is there any limitation on the initial population in P. The utility of the method is demonstrated via computations in three following areas: molecular compounds, photonic materials, and condensed phases.

Thanopulos, Ioannis [Department of Chemistry, University of British Columbia, Vancouver V6T 1Z3 (Canada); Brumer, Paul [Chemical Physics Theory Group, Department of Chemistry, and Center of Quantum Information and Quantum Control, University of Toronto, Toronto, Ontario M5S 3H6 (Canada); Shapiro, Moshe [Department of Chemistry, University of British Columbia, Vancouver V6T 1Z3 (Canada); Department of Chemical Physics, Weizmann Institute, Rehovot 76100 (Israel)

2008-11-21T23:59:59.000Z

65

GRAIN BOUNDARY STRENGTHENING PROPERTIES OF TUNGSTEN ALLOYS  

SciTech Connect (OSTI)

Density functional theory was employed to investigate grain boundary (GB) properties of W alloys. A range of substitutional solutes across the Periodic Table was investigated to understand the behavior of different electronic orbitals in changing the GB cleavage energy in the ?27a[110]{525} GB. A number of transition metals were predicted to enhance the GB cohesion. This includes Ru, Re, Os, Ir, V, Cr, Mn, Fe, Co, Ti, Hf, Ta and Nb. While lanthanides, s and p elements were tended to cause GB embrittlement.

Setyawan, Wahyu; Kurtz, Richard J.

2012-10-10T23:59:59.000Z

66

Grain boundary compositon in NiAl  

SciTech Connect (OSTI)

The high temperature strength and oxidation resistance of many transition metal aluminides makes these intermetallic materials attractive for high temperature applications. However, these aluminides are generally brittle at low temperatures and this restricts their technological applications. However, these aluminides are generally brittle at low temperatures and this restricts their technological applications. It has been demonstrated that the addition of more than 200 ppm of boron to the L1{sub 2}-ordered Ni{sub 3}Al changes the fracture behavior from intergranular to transgranular and increases the ductility. The B2-ordered NiAl nickel aluminide is particularly attractive because of its low density and high melting temperature. This aluminide also fractures intergranularly at room temperature. However, no improvement in ductility is observed with similar boron additions even though the intergranular fracture is suppressed and there is a significant increase in the yield strength. In this paper, the results of an atom probe field ion microscopy investigation of the compositions of the grain boundaries in undoped and boron-doped NiAl are presented. The suitability of the atom probe field ion microscopy technique for the characterization of boundaries has clearly been demonstrated in many previous investigations including the characterization of boron segregation to grain boundaries and other planar features in Ni{sub 3}Al.

Miller, M.K.; Jayaram, R.; Camus, P.P. (Metals and Ceramics Div., Oak Ridge National Lab., Oak Ridge, TN (US))

1992-02-15T23:59:59.000Z

67

Applied Science/Techniques  

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

Applied Science/Techniques Applied Science/Techniques Applied Science/Techniques Print The ALS is an excellent incubator of new scientific techniques and instrumentation. Many of the technical advances that make the ALS a world-class soft x-ray facility are developed at the ALS itself. The optical components in use at the ALS-mirrors and lenses optimized for x-ray wavelengths-require incredibly high-precision surfaces and patterns (often formed through extreme ultraviolet lithography at the ALS) and must undergo rigorous calibration and testing provided by beamlines and equipment from the ALS's Optical Metrology Lab and Berkeley Lab's Center for X-Ray Optics. New and/or continuously improved experimental techniques are also a crucial element of a thriving scientific facility. At the ALS, examples of such "technique" highlights include developments in lensless imaging, soft x-ray tomography, high-throughput protein analysis, and high-power coherent terahertz radiation.

68

Information Science, Computing, Applied Math  

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

Capabilities ISC Applied Math science-innovationassetsimagesicon-science.jpg Information Science, Computing, Applied Math National security depends on science and...

69

Selected Operating Costs for Storage of Sorghum Grain.  

E-Print Network [OSTI]

Selected Operating Costs for Storage Of Sorghum Grain TEXAS A&M UNIVERSITY This is the third of three bulletins reporting the results of a study of sorghum grain storage and handling practices in Texas. The first dealt with marketing and on...-farm storage; the second with com- mercial storage and handling practices. This bulletin reports the results of a study of the costs of com- mercial grain handling practices. Three areas representing a cross section of physical and economic conditions...

Bonnen, C. A. (Clarence Alfred); Cunningham, William C.

1964-01-01T23:59:59.000Z

70

SUSTAINABILITY WHO CAN APPLY  

E-Print Network [OSTI]

FUNDED BY CALL FOR SUSTAINABILITY RESEARCH STUDENT WHO CAN APPLY Undergraduate and graduate Participate in the Global Change & Sustainability Center's Research Symposium; attend workshops with faculty or publish in the U's student-run sustainability publication to be released in May 2014. Are you conducting

71

New Process for Grain Refinement of Aluminum. Final Report  

SciTech Connect (OSTI)

A new method of grain refining aluminum involving in-situ formation of boride nuclei in molten aluminum just prior to casting has been developed in the subject DOE program over the last thirty months by a team consisting of JDC, Inc., Alcoa Technical Center, GRAS, Inc., Touchstone Labs, and GKS Engineering Services. The Manufacturing process to make boron trichloride for grain refining is much simpler than preparing conventional grain refiners, with attendant environmental, capital, and energy savings. The manufacture of boride grain refining nuclei using the fy-Gem process avoids clusters, salt and oxide inclusions that cause quality problems in aluminum today.

Dr. Joseph A. Megy

2000-09-22T23:59:59.000Z

72

General Schema for [001] Tilt Grain Boundaries in Dense Packing...  

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

as showing the frustration of symmetry caused by the incorporation of point defects (vacancies and impurities). This general model for grain boundary structures can, in principle,...

73

Coarse grained description of protein folding  

Science Journals Connector (OSTI)

We consider two- and three-dimensional lattice models of proteins that were characterized previously. We coarse grain their folding dynamics by reducing it to transitions between effective states. We consider two methods of selection of the effective states. The first method is based on the steepest descent mapping of states to underlying local energy minima and the other involves an additional projection to maximally compact conformations. Both methods generate connectivity patterns that allow one to distinguish between the good and bad folders. Connectivity graphs corresponding to the folding funnel have few loops and are thus treelike. The Arrhenius law for the median folding time of a 16-monomer sequence is established and the corresponding barrier is related to easily identifiable kinetic trap states.

Marek Cieplak and Trinh Xuan Hoang

1998-09-01T23:59:59.000Z

74

Applied Science/Techniques  

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

Applied Science/Techniques Print Applied Science/Techniques Print The ALS is an excellent incubator of new scientific techniques and instrumentation. Many of the technical advances that make the ALS a world-class soft x-ray facility are developed at the ALS itself. The optical components in use at the ALS-mirrors and lenses optimized for x-ray wavelengths-require incredibly high-precision surfaces and patterns (often formed through extreme ultraviolet lithography at the ALS) and must undergo rigorous calibration and testing provided by beamlines and equipment from the ALS's Optical Metrology Lab and Berkeley Lab's Center for X-Ray Optics. New and/or continuously improved experimental techniques are also a crucial element of a thriving scientific facility. At the ALS, examples of such "technique" highlights include developments in lensless imaging, soft x-ray tomography, high-throughput protein analysis, and high-power coherent terahertz radiation.

75

Three-dimensional off-lattice Monte Carlo kinetics simulations of interstellar grain chemistry and ice structure  

E-Print Network [OSTI]

The first off-lattice Monte Carlo kinetics model of interstellar dust-grain surface chemistry is presented. The positions of all surface particles are determined explicitly, according to the local potential minima resulting from the pair-wise interactions of contiguous atoms and molecules, rather than by a pre-defined lattice structure. The model is capable of simulating chemical kinetics on any arbitrary dust-grain morphology, as determined by the user-defined positions of each individual dust-grain atom. A simple method is devised for the determination of the most likely diffusion pathways and their associated energy barriers for surface species. The model is applied to a small, idealized dust grain, adopting various gas densities and using a small chemical network. Hydrogen and oxygen atoms accrete onto the grain, to produce H2O, H2, O2 and H2O2. The off-lattice method allows the ice structure to evolve freely; ice mantle porosity is found to be dependent on the gas density, which controls the accretion ra...

Garrod, Robin T

2013-01-01T23:59:59.000Z

76

Charge Transport Anisotropy Due to Grain Boundaries in Directionally  

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

Charge Transport Anisotropy Due to Grain Charge Transport Anisotropy Due to Grain Boundaries in Directionally Crystallized Thin Films of Regio-Regular Poly(3-hexylthiophene) Semicrystalline polymers, such as polythiophenes, hold much promise as active layers in printable electronic devices such as photovoltaic cells, sensors, and thin film transistors. As organic semiconductors approach commercialization, there is a need to better understand the relationship between charge transport and microstructure, in particular, to identify the inherent bottlenecks to charge transport. In semicrystalline and polycrystalline materials, charge transport is most likely dominated by grain-boundary effects, although the exact mechanism is not well understood. Unfortunately, grain boundaries in semicrystalline thin films are difficult to characterize: the grains are too small to allow for measurements across individual grain boundaries (as is often done for polycrystalline films of small molecules) and bulk measurements are complicated by the unknown orientation of polymer chains within the grain. To better understand the effect of chain orientation on grain boundaries, we use anisotropic thin films of poly(3-hexylthiophene) (P3HT) - one of the most well-studied polymeric semiconductors, as a tool to study charge transport.

77

Thursday, March 16, 2006 POSTER SESSION II: PRESOLAR GRAINS  

E-Print Network [OSTI]

and Boron isotope and elemental analyses have been acquired from pristine pre-solar silicon carbide grains chondrites. We determined presolar grain abundance in the ordinary chondrites and discussed alteration] Nanodiamonds are found in carbonaceous chondrites and contain different isotopically anormous noble gases

Rathbun, Julie A.

78

Distribution of Grain Boundary Planes and Misorientations in Magnesium Oxide  

E-Print Network [OSTI]

Distribution of Grain Boundary Planes and Misorientations in Magnesium Oxide D.M. Saylor 1 , A distribution, magnesium oxide. Abstract. We have developed a technique that allows the geometry of polycrystalline magnesium oxide. Using these data, we have specified the distribution of grain boundaries within

Rohrer, Gregory S.

79

Science at the interface : grain boundaries in nanocrystalline metals.  

SciTech Connect (OSTI)

Interfaces are a critical determinant of the full range of materials properties, especially at the nanoscale. Computational and experimental methods developed a comprehensive understanding of nanograin evolution based on a fundamental understanding of internal interfaces in nanocrystalline nickel. It has recently been shown that nanocrystals with a bi-modal grain-size distribution possess a unique combination of high-strength, ductility and wear-resistance. We performed a combined experimental and theoretical investigation of the structure and motion of internal interfaces in nanograined metal and the resulting grain evolution. The properties of grain boundaries are computed for an unprecedented range of boundaries. The presence of roughening transitions in grain boundaries is explored and related to dramatic changes in boundary mobility. Experimental observations show that abnormal grain growth in nanograined materials is unlike conventional scale material in both the level of defects and the formation of unfavored phases. Molecular dynamics simulations address the origins of some of these phenomena.

Rodriguez, Mark Andrew; Follstaedt, David Martin; Knapp, James Arthur; Brewer, Luke N.; Holm, Elizabeth Ann; Foiles, Stephen Martin; Hattar, Khalid M.; Clark, Blythe B.; Olmsted, David L.; Medlin, Douglas L.

2009-09-01T23:59:59.000Z

80

Grain Alignment by Radiation in Dark Clouds and Cores  

E-Print Network [OSTI]

We study alignment of grains by radiative torques. We found steep rise of radiative torque efficiency as grain size increases. This allows larger grains that are known to exist within molecular clouds to be aligned by the attenuated and reddened interstellar radiation field. In particular, we found that, even deep inside giant molecular clouds, e.g. at optical depths corresponding to less than Av of 10 large grains can still be aligned by radiative torque. This means that, contrary to earlier claims, far-infrared/submillimeter polarimetry provides a reliable tool to study magnetic fields of pre-stellar cores. Our results show that the grain size distribution is important for determining the relation between the degree of polarization and intensity.

J. Cho; A. Lazarian

2005-05-28T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

Finite-Size Effects on the Structure of Grain Boundaries  

Science Journals Connector (OSTI)

We present a combined experimental and theoretical analysis of the structure of finite-sized ?3 {112} grain boundaries in Au. High-resolution electron microscopy shows lattice translations at the grain boundary, with the magnitude of the translation varying along the finite-sized grain boundaries. The presence of this structural profile is explained using continuum elasticity theory and first-principles calculations as originating from a competition between elastic energy and the energy cost of forming continuous {111} planes across the boundary. This competition leads to a structural transition between offset-free and nontrivial grain boundary structures at a critical grain boundary size, in agreement with the experiments. We also provide a method to estimate the energy barrier of the ? surface.

E. A. Marquis; J. C. Hamilton; D. L. Medlin; F. Léonard

2004-10-04T23:59:59.000Z

82

Granular Gases of Rod-Shaped Grains in Microgravity  

Science Journals Connector (OSTI)

Granular gases are convenient model systems to investigate the statistical physics of nonequilibrium systems. In the literature, one finds numerous theoretical predictions, but only few experiments. We study a weakly excited dilute gas of rods, confined in a cuboid container in microgravity during a suborbital rocket flight. With respect to a gas of spherical grains at comparable filling fraction, the mean free path is considerably reduced. This guarantees a dominance of grain-grain collisions over grain-wall collisions. No clustering was observed, unlike in similar experiments with spherical grains. Rod positions and orientations were determined and tracked. Translational and rotational velocity distributions are non-Gaussian. Equipartition of kinetic energy between translations and rotations is violated.

K. Harth; U. Kornek; T. Trittel; U. Strachauer; S. Höme; K. Will; R. Stannarius

2013-04-02T23:59:59.000Z

83

Applied ALARA techniques  

SciTech Connect (OSTI)

The presentation focuses on some of the time-proven and new technologies being used to accomplish radiological work. These techniques can be applied at nuclear facilities to reduce radiation doses and protect the environment. The last reactor plants and processing facilities were shutdown and Hanford was given a new mission to put the facilities in a safe condition, decontaminate, and prepare them for decommissioning. The skills that were necessary to operate these facilities were different than the skills needed today to clean up Hanford. Workers were not familiar with many of the tools, equipment, and materials needed to accomplish:the new mission, which includes clean up of contaminated areas in and around all the facilities, recovery of reactor fuel from spent fuel pools, and the removal of millions of gallons of highly radioactive waste from 177 underground tanks. In addition, this work has to be done with a reduced number of workers and a smaller budget. At Hanford, facilities contain a myriad of radioactive isotopes that are 2048 located inside plant systems, underground tanks, and the soil. As cleanup work at Hanford began, it became obvious early that in order to get workers to apply ALARA and use hew tools and equipment to accomplish the radiological work it was necessary to plan the work in advance and get radiological control and/or ALARA committee personnel involved early in the planning process. Emphasis was placed on applying,ALARA techniques to reduce dose, limit contamination spread and minimize the amount of radioactive waste generated. Progress on the cleanup has,b6en steady and Hanford workers have learned to use different types of engineered controls and ALARA techniques to perform radiological work. The purpose of this presentation is to share the lessons learned on how Hanford is accomplishing radiological work.

Waggoner, L.O.

1998-02-05T23:59:59.000Z

84

for Applied Linguistics.  

E-Print Network [OSTI]

per calendar year, promptly at intervals of three months. Each pack is to contain two numbers of the Finite String. The difficulties of the first year of publication of AJCL are responsible for the d'elayed, production of this ~ack, which also contains Volume 11, Number 4 of TFS. ~k would be a rash editor indeed who guaranteed promptness without caveat. The present editbr must warn the subscriber that'the end of the diLf.iculti-es is not yet fixed for a date certa.in. AMERICAN JQURNAL OF COMPL'TATIONAL LINGUISTICS is published by the Center for Applied Linguistics for the Association for Computational Linguistics.

Assistant Nancy Jokovl Ch

85

Taming Density Functional Theory by Coarse-Graining  

E-Print Network [OSTI]

The standard (``fine-grained'') interpretation of quantum density functional theory, in which densities are specified with infinitely-fine spatial resolution, is mathematically unruly. Here, a coarse-grained version of DFT, featuring limited spatial resolution, and its relation to the fine-grained theory in the $L^1\\cap L^3$ formulation of Lieb, is studied, with the object of showing it to be not only mathematically well-behaved, but consonant with the spirit of DFT, practically (computationally) adequate and sufficiently close to the standard interpretation as to accurately reflect its non-pathological properties. The coarse-grained interpretation is shown to be a good model of formal DFT in the sense that: all densities are (ensemble)-V-representable; the intrinsic energy functional $F$ is a continuous function of the density and the representing external potential is the (directional) functional derivative of the intrinsic energy. Also, the representing potential $v[\\rho]$ is quasi-continuous, in that $v[\\rho]\\rho$ is continuous as a function of $\\rho$. The limit of coarse-graining scale going to zero is studied to see if convergence to the non-pathological aspects of the fine-grained theory is adequate to justify regarding coarse-graining as a good approximation. Suitable limiting behaviors or intrinsic energy, densities and representing potentials are found. Intrinsic energy converges monotonically, coarse-grained densities converge uniformly strongly to their low-intrinsic-energy fine-grainings, and $L^{3/2}+L^\\infty$ representability of a density is equivalent to the existence of a convergent sequence of coarse-grained potential/ground-state density pairs.

Paul E. Lammert

2010-08-10T23:59:59.000Z

86

80From Dust Grains to Dust Balls A cosmic dust grain about 0.1mm across captured by a  

E-Print Network [OSTI]

-altitude aircraft. Probably debris from a passing comet Planets are built in several stages. The first Problem 2 ­Answer: The change in the mass, dM, occurs as a quantity of dust grains land on the surface in the interstellar gas, times the speed of the grains landing on the surface. This leads to m x N x V where m

87

Applied Optoelectronics | Open Energy Information  

Open Energy Info (EERE)

Optoelectronics Jump to: navigation, search Name: Applied Optoelectronics Place: Sugar Land, Texas Zip: 77478 Product: Applied Optoelectronics designs, develops, and manufactures...

88

ORISE: Applied health physics projects  

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

Applied health physics projects The Oak Ridge Institute for Science and Education (ORISE) provides applied health physics services to government agencies needing technical support...

89

Irradiation Assisted Grain Boundary Segregation in Steels  

SciTech Connect (OSTI)

The understanding of radiation-induced grain boundary segregation (RIS) has considerably improved over the past decade. New models have been introduced and much effort has been devoted to obtaining comprehensive information on segregation from the literature. Analytical techniques have also improved so that chemical analysis of layers 1 nm thick is almost routine. This invited paper will review the major methods used currently for RIS prediction: namely, Rate Theory, Inverse Kirkendall, and Solute Drag approaches. A summary is made of the available data on phosphorus RIS in reactor pressure vessel (RPV) steels. This will be discussed in the light of the predictions of the various models in an effort to show which models are the most reliable and easy to use for forecasting P segregation behaviour in steels. A consequence of RIS in RPV steels is a radiation induced shift in the ductile to brittle transition temperature (DBTT). It will be shown how it is possible to relate radiation-induced P segregation levels to DBTT shift. Examples of this exercise will be given for RPV steels and for ferritic steels being considered for first wall fusion applications. Cr RIS in high alloy stainless steels and associated irradiation-assisted stress corrosion cracking (IASCC) will be briefly discussed. (authors)

Lu, Zheng; Faulkner, Roy G. [IPTME, Loughborough University, Loughborough, Leics (United Kingdom)

2008-07-01T23:59:59.000Z

90

Effects of Genotype and Environment on the Contents of Betaine, Choline, and Trigonelline in Cereal Grains  

Science Journals Connector (OSTI)

This study examined the environmental and genetic variation in methyl donor contents and compositions of 200 cereal genotypes. ... (25) This study provides an unrivaled database of the detailed composition of grain of wheat and other cereals. ... Agronomic treatments were standard for the individual sites, with 110 kg of N/ha being applied in Poland, 204 kg of N/ha in the United Kingdom, 200 kg of N/ha in France, and 140 kg of N/ha in Hungary and appropriate use of agrochemicals. ...

Delia-Irina Corol; Catherine Ravel; Mariann Raksegi; Zoltan Bedo; Gilles Charmet; Michael H. Beale; Peter R. Shewry; Jane L. Ward

2012-05-05T23:59:59.000Z

91

Using phase information to enhance speckle noise reduction in the ultrasonic NDE of coarse grain materials  

SciTech Connect (OSTI)

Materials with a coarse grain structure are becoming increasingly prevalent in industry due to their resilience to stress and corrosion. These materials are difficult to inspect with ultrasound because reflections from the grains lead to high noise levels which hinder the echoes of interest. Spatially Averaged Sub-Aperture Correlation Imaging (SASACI) is an advanced array beamforming technique that uses the cross-correlation between images from array sub-apertures to generate an image weighting matrix, in order to reduce noise levels. This paper presents a method inspired by SASACI to further improve imaging using phase information to refine focusing and reduce noise. A-scans from adjacent array elements are cross-correlated using both signal amplitude and phase to refine delay laws and minimize phase aberration. The phase-based and amplitude-based corrected images are used as inputs to a two-dimensional cross-correlation algorithm that will output a weighting matrix that can be applied to any conventional image. This approach was validated experimentally using a 5MHz array a coarse grained Inconel 625 step wedge, and compared to the Total Focusing Method (TFM). Initial results have seen SNR improvements of over 20dB compared to TFM, and a resolution that is much higher.

Lardner, Timothy; Gachagan, Anthony [Centre for Ultrasonic Engineering, University of Strathclyde, Glasgow, G1 1XW (United Kingdom); Li, Minghui [School of Engineering, University of Glasgow, Glasgow, G12 8QQ (United Kingdom)

2014-02-18T23:59:59.000Z

92

Manufacturing process to reduce large grain growth in zirconium alloys  

DOE Patents [OSTI]

It is an object of the present invention to provide a procedure for desensitizing zirconium-based alloys to large grain growth (LGG) during thermal treatment above the recrystallization temperature of the alloy. It is a further object of the present invention to provide a method for treating zirconium-based alloys which have been cold-worked in the range of 2 to 8% strain to reduce large grain growth. It is another object of the present invention to provide a method for fabricating a zirconium alloy clad nuclear fuel element wherein the zirconium clad is resistant to large grain growth.

Rosecrans, P.M.

1984-08-01T23:59:59.000Z

93

Kapitza Resistance of the Grain Boundaries in Ceria  

SciTech Connect (OSTI)

Thermal conductivity is one of the key performance metrics of the nuclear fuels. In electrical insulators, such as most ubiquitous nuclear fuel – UO2, thermal transport is due to phonons, or lattice waves. Their propagation is impeded by any lattice defect, such as impurities or vacancies, as well as larger microstructural features: grain boundaries, dislocations and pores/bubbles. Detailed description of the phonons interactions with these features is still lacking. In this work, we elucidate the dependence of the grain boundary thermal resistance, also known as a Kapitza resistance, on the type and misorientation angle of the grain boundary in model system of CeO2.

David Bai; Jian Gan; Aleksandr Chernatynskiy

2014-06-01T23:59:59.000Z

94

Competition among different height genotypes of grain sorghum hybrids  

E-Print Network [OSTI]

of differences from check for Temple (test 3), 45 Summary of differences from check for Temple (test 4). 46 vii LIST OF FIGURES Figures Page Deviations of treatments from the mean yield of grain in pounds per acre for the 3x3 hybrids over- all locations... Deviations of treatments from the mean yield of grain in pounds per acre for the 3x4 hybrids over- all locations 18 Deviations of treatments from the mean yield of grain in pounds per acre for the 4x4 hy'bride over- all locations Deviations of treatments...

Miller, Frederick Robert

2012-06-07T23:59:59.000Z

95

Studies of physical characteristics and animal response to reconstituted sorghum grain  

E-Print Network [OSTI]

date of reconstitution 35 Endosperm cells containing starch granules from dry grain (840X). 51 Endosperm cells containing starch granules from reconstituted grain (840X) 51 Starch granules from reconstituted grain (840X) 52 10 Reconstituted grain... sorghums *re excellent feed for all classes of livestock. They are generally equal to or better than other cereal grains, including corn, in the production of gain. Grain sorghum can fit into feed rations for fatten- ing all classes of livestock, creep...

Florence, Harold Douglas

2012-06-07T23:59:59.000Z

96

Categorical Exclusion Determinations: A9 | Department of Energy  

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

November 20, 2012 November 20, 2012 CX-008578: Categorical Exclusion Determination Arkansas Energy Office State Energy Program 2012 CX(s) Applied: A9, A11 Date: *no date posted* Location(s): Arkansas Offices(s): Golden Field Office November 19, 2012 CX-009544: Categorical Exclusion Determination How Grain Boundaries Affect the Efficiency of Poly-Cadmium Telluride Solar-Cells CX(s) Applied: A9, B3.6 Date: 11/19/2012 Location(s): Illinois Offices(s): Golden Field Office November 16, 2012 CX-009521: Categorical Exclusion Determination Florida-City-Hialeah CX(s) Applied: A9, A11, B5.1 Date: 11/16/2012 Location(s): Florida Offices(s): Energy Efficiency and Renewable Energy November 15, 2012 CX-009522: Categorical Exclusion Determination Nevada-City-North Las Vegas CX(s) Applied: A1, A9, B1.32, B2.5, B5.1

97

Grain-Boundary Physics in Polycrystalline Photovoltaic Materials: Preprint  

SciTech Connect (OSTI)

This paper describes a study of the atomic structure and electronic effects of grain boundaries in polycrystalline photovoltaic materials such as Si, CdTe, CuInSe2, and CuGaSe2.

Yan, Y.; Jiang, C. S.; Wu, X. Z.; Noufi, R.; Wei, S. H.; Al-Jassim, M. M.

2008-05-01T23:59:59.000Z

98

Quantitative grain size evaluation using ultrasonic backscattered echoes  

Science Journals Connector (OSTI)

Grain size characterization using ultrasonicbackscattered signals is an important problem in nondestructive testing of materials. In this paper a heuristic model which relates the statistical characteristics of the measured signal to the mean ultrasonicwavelet and attenuation coefficient in different regions of the sample is investigated. The losses in the backscattered signal are examined using temporal averaging correlation and probability distribution functions of the segmented data. Furthermore homomorphic processing is used in a novel application to estimate the mean ultrasonicwavelet (as it propagates through the sample) and the frequency?dependent attenuation. In the work presented heat?treated stainless steel samples with various grain sizes are examined. The processed experimental results support the feasibility of the grain size evaluation techniques presented here using the backscattered grain signal.

Jafar Saniie; Nihat M. Bilgutay

1986-01-01T23:59:59.000Z

99

Managing Insect and Mite Pests of Texas Small Grains  

E-Print Network [OSTI]

Small grain crops are important for fall and winter livestock grazing. Pests such as small wireworms and cutworms cause significant damage to these crops. Complete information about sampling, economic thresholds, and control of these pests...

Patrick, Carl D.; Knutson, Allen E.

2006-07-05T23:59:59.000Z

100

DECODING THE MESSAGE FROM METEORITIC STARDUST SILICON CARBIDE GRAINS  

SciTech Connect (OSTI)

Micron-sized stardust grains that originated in ancient stars are recovered from meteorites and analyzed using high-resolution mass spectrometry. The most widely studied type of stardust is silicon carbide (SiC). Thousands of these grains have been analyzed with high precision for their Si isotopic composition. Here we show that the distribution of the Si isotopic composition of the vast majority of stardust SiC grains carries the imprints of a spread in the age-metallicity distribution of their parent stars and of a power-law increase of the relative formation efficiency of SiC dust with the metallicity. This result offers a solution for the long-standing problem of silicon in stardust SiC grains, confirms the necessity of coupling chemistry and dynamics in simulations of the chemical evolution of our Galaxy, and constrains the modeling of dust condensation in stellar winds as a function of the metallicity.

Lewis, Karen M.; Lugaro, Maria; Gibson, Brad K.; Pilkington, Kate, E-mail: maria.lugaro@monash.edu, E-mail: karen.michelle.lewis@gmail.com, E-mail: bkgibson@uclan.ac.uk, E-mail: kpilkington@uclan.ac.uk [Monash Centre for Astrophysics (MoCA), Monash University, Clayton VIC 3800 (Australia)

2013-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

Decoding the message from meteoritic stardust silicon carbide grains  

E-Print Network [OSTI]

Micron-sized stardust grains that originated in ancient stars are recovered from meteorites and analysed using high-resolution mass spectrometry. The most widely studied type of stardust is silicon carbide (SiC). Thousands of these grains have been analysed with high precision for their Si isotopic composition. Here we show that the distribution of the Si isotopic composition of the vast majority of stardust SiC grains carry the imprints of a spread in the age-metallicity distribution of their parent stars and of a power-law increase of the relative formation efficiency of SiC dust with the metallicity. This result offers a solution for the long-standing problem of silicon in stardust SiC grains, confirms the necessity of coupling chemistry and dynamics in simulations of the chemical evolution of our Galaxy, and constrains the modelling of dust condensation in stellar winds as function of the metallicity.

Lewis, Karen M; Gibson, Brad K; Pilkington, Kate

2013-01-01T23:59:59.000Z

102

Modelling the wetting and cooking of a single cereal grain  

Science Journals Connector (OSTI)

......compared. Regions where the penetration rate is approximately linear are...compared. Regions where the penetration rate is approximately linear are...grains, compared with moisture penetration rates. 52 M. J. MCGVWNESS ETAL......

M. J. MCGUINNESS; C. P. PLEASE; N. FOWKES; P. MCGOWAN; L. RYDER; D. FORTE

2000-01-01T23:59:59.000Z

103

Grain characteristics and engineering properties of coal ash  

Science Journals Connector (OSTI)

?Ash produced by the coal fired thermal plants is often used as ... the grain characteristics and the engineering properties of coal ash. The results of x-ray diffraction, ... characteristic that may be used for ...

A. Trivedi; V. K. Sud

2002-12-01T23:59:59.000Z

104

The King’s Grain and the Retreat from Liberalization  

Science Journals Connector (OSTI)

Whereas Laverdy used the king’s grain to facilitate the transition from a police to a liberal regime, Terray used it to facilitate the transition from a liberal to a police regime. There are of course other im...

Steven L. Kaplan

1976-01-01T23:59:59.000Z

105

Effect of tensile strain on grain connectivity and flux pinning...  

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

tensile strain on grain connectivity and flux pinning in Bi 2 Sr 2 Ca 2 Cu 3 O x tapes D. C. van der Laan and J. W. Ekin National Institute of Standards and Technology, Boulder,...

106

Multiresolution methods for materials modeling via coarse-graining  

E-Print Network [OSTI]

(cont.) time, while obtaining useful information about the thermodynamic behavior of the system. We show how statistical mechanics can be formulated using the wavelet transform as a coarse-graining technique. For small ...

Ismail, Ahmed E. (Ahmed Emad), 1977-

2005-01-01T23:59:59.000Z

107

Thermal conductivity and specific heat of sorghum grain  

E-Print Network [OSTI]

Formation of Test Canister Ice Jacket ~ Sealing Test Canister in Calorimeter. . 43 44 Testing of Samples. Initial Calorimeter Observations. 49 Insertion of Grain Samples into Calorimeter. . . . 50 Final Test Observations Processing of Data. 54... to Contain the Grain Sample 38 for the Determination of Specific Heat 39 12. Top View of Calorimeter. 40 13. Galvanized Iron Cylinder Used to Form the Ice Jacket Around the Test Canister 42 VIII Figures 14. Clamping Device Used to Hold Test Canister...

Miller, Clinton Frank

2012-06-07T23:59:59.000Z

108

School of Applied Technology School of Applied Technology  

E-Print Network [OSTI]

School of Applied Technology School of Applied Technology Daniel F. and Ada L. Rice Campus Illinois Institute of Technology 201 E. Loop Road Wheaton, IL 60187 630.682.6000 www.iit.edu/applied tech/ Dean and Academic Director, Information Technology and Management Programs: C. Robert Carlson Director of Operations

Heller, Barbara

109

School of Applied Technology School of Applied Technology  

E-Print Network [OSTI]

School of Applied Technology School of Applied Technology Daniel F. and Ada L. Rice Campus Illinois Institute of Technology 201 E. Loop Road Wheaton, IL 60187 630.682.6000 www.iit.edu/applied tech/ Dean Technology and Management Programs: Mazin Safar Director, Marketing & Development: Scott Pfeiffer Director

Heller, Barbara

110

Application of Landau-Lifshitz-Bloch dynamics to grain switching in heat-assisted magnetic recording  

Science Journals Connector (OSTI)

Magnetization dynamics in heat-assisted magnetic recording (HAMR) involves magnetization collapse and re-formation under rapid local temperature excursion in a temporally varying applied magnetic field with temperature likely moving above and below the medium Curie point on nanosecond timescales. Traditional micromagnetic simulation of the writing process in magnetic data storage has been restricted to isothermal processes in which macrospin magnetization dynamics are handled with the well-established Landau-Lifshitz-Gilbert (LLG) algorithm or close variants. Classical LLG treats the magnitude of material magnetization M as fixed (at zero Kelvin) so initial attempts at micromagnetic analysis of HAMR have typically dealt with the effects of temperature variation in HAMR in a somewhat ad hoc manner (e.g. insertion of M(T) A(T) K(T)) and have not been rigorous. A much improved treatment of this problem substitutes the Landau-Lifshitz-Bloch (LLB) algorithm in which thermally driven magnetization variation is treated more correctly in an extended semi-classical Landau-Lifshitz framework Here we study single-grain switching with this method under application of time-varying temperature and H-field. For a typical system setup we map phase diagrams of grain switching probability over the space of important HAMR parameters such as peak temperature elevation applied H-field strength and the synchronization of temperature and field.

Terry W. McDaniel

2012-01-01T23:59:59.000Z

111

Commercial Storage and Handling of Sorghum Grain.  

E-Print Network [OSTI]

percent divided-among storage operators attempt to keep merchandising space TABLE 6. STORAGE SPACE BY SPECIFIED MATERIAL AND TYPE OF STRUCTURE1 Area and con- Storage built prior to 1956 Storage built 1956-60 inclusive 'ruttion material Flat structures...,000 bushels Percent 17.1 81.3 1.6 90.5 9.5 100.0 40.7 58.2 1.1 iomple proportions were applied to total storage capacities by areas to obtain estimates of quantities in the table. ntludes wood, steel and concrete and steel and wood structures...

Brown, Charles W.; Moore, Clarence A.

1963-01-01T23:59:59.000Z

112

GRAIN REFINEMENT OF PERMANENT MOLD CAST COPPER BASE ALLOYS  

SciTech Connect (OSTI)

Grain refinement behavior of copper alloys cast in permanent molds was investigated. This is one of the least studied subjects in copper alloy castings. Grain refinement is not widely practiced for leaded copper alloys cast in sand molds. Aluminum bronzes and high strength yellow brasses, cast in sand and permanent molds, were usually fine grained due to the presence of more than 2% iron. Grain refinement of the most common permanent mold casting alloys, leaded yellow brass and its lead-free replacement EnviroBrass III, is not universally accepted due to the perceived problem of hard spots in finished castings and for the same reason these alloys contain very low amounts of iron. The yellow brasses and Cu-Si alloys are gaining popularity in North America due to their low lead content and amenability for permanent mold casting. These alloys are prone to hot tearing in permanent mold casting. Grain refinement is one of the solutions for reducing this problem. However, to use this technique it is necessary to understand the mechanism of grain refinement and other issues involved in the process. The following issues were studied during this three year project funded by the US Department of Energy and the copper casting industry: (1) Effect of alloying additions on the grain size of Cu-Zn alloys and their interaction with grain refiners; (2) Effect of two grain refining elements, boron and zirconium, on the grain size of four copper alloys, yellow brass, EnviroBrass II, silicon brass and silicon bronze and the duration of their effect (fading); (3) Prediction of grain refinement using cooling curve analysis and use of this method as an on-line quality control tool; (4) Hard spot formation in yellow brass and EnviroBrass due to grain refinement; (5) Corrosion resistance of the grain refined alloys; (6) Transfer the technology to permanent mold casting foundries; It was found that alloying elements such as tin and zinc do not change the grain size of Cu-Zn alloys. Aluminum promoted b phase formation and modified the grain structure from dendritic to equiaxed. Lead or bismuth reduces the size of grains, but not change the morphology of the structure in Cu-Zn alloys. The grain size of the Cu-Zn-alloy can be reduced from 3000 mm to 300 mm after the addition of aluminum and lead. Similar effects were observed in EnviroBrass III after the addition of aluminum and bismuth. Boron refined the structure of yellow brasses in the presence of iron. At least 50 ppm of iron and 3 ppm of boron are necessary to cause grain refinement in these alloys. Precipitation of iron from the melt is identified as the cause of grain refinement. Boron initiates the precipitation of iron which could not be explained at this time. On the other hand zirconium causes some reduction in grain size in all four alloys investigated. The critical limit for the zirconium was found to be around 100 ppm below which not much refinement could be observed. The mechanism of grain refinement in the presence of zirconium could not be explained. Grain refinement by boron and iron can remain over a long period of time, at least for 72 hours of holding or after remelting few times. It is necessary to have the iron and boron contents above the critical limits mentioned earlier. On the other hand, refinement by zirconium is lost quite rapidly, some times within one hour of holding, mostly due to the loss of zirconium, most probably by oxidation, from the melt. In all the cases it is possible to revive the refinement by adding more of the appropriate refining element. Cooling curve analysis (thermal analysis) can be used successfully to predict the grain refinement in yellow brasses. The precipitation of iron in the liquid metal causes the metal to solidify without undercooling. Absence of this reaction, as indicated by the time-temperature (t-T) and its first derivative (dt/dT) curves, proved to be an indicator of refinement. The viability of the technique as an on-line quality control tool was proved in two foundries. The method can also correctly predict the onset of fading. Th

M. SADAYAPPAN, J.P. THOMSON, M.ELBOUJDAINI, G. PING GU, M. SAHOO

2004-04-29T23:59:59.000Z

113

Dust extinction and absorption: the challenge of porous grains  

E-Print Network [OSTI]

In many models of dusty objects in space the grains are assumed to be composite or fluffy. However, the computation of the optical properties of such particles is still a very difficult problem. We analyze how the increase of grain porosity influences basic features of cosmic dust -- interstellar extinction, dust temperature, infrared bands and millimeter opacity. Porous grains can reproduce the flat extinction across the $3 - 8 \\mkm$ wavelength range measured for several lines of sight by {\\it ISO} and {\\it Spitzer}. Porous grains are generally cooler than compact grains. At the same time, the temperature of very porous grains becomes slightly larger in the case of the EMT-Mie calculations in comparison with the results found from the layered-sphere model. The layered-sphere model predicts a broadening of infrared bands and a shift of the peak position to larger wavelengths as porosity grows. In the case of the EMT-Mie model variations of the feature profile are less significant. It is also shown that the millimeter mass absorption coefficients grow as porosity increases with a faster growth occurring for particles with Rayleigh/non-Rayleigh inclusions. As a result, for very porous particles the coefficients given by two models can differ by a factor of about 3. It is found that an increase of porosity leads to an increase of extinction cross sections at some wavelengths and a decrease at others depending on the grain model. However, this behaviour is sufficient to reproduce the extinction curve in the direction of the star $\\sigma$ Sco using current solar abundances. In the case of the star $\\zeta$ Oph our model requires larger amounts of carbon and iron in the dust-phase than is available.

N. V. Voshchinnikov; V. B. Il'in; Th. Henning; D. N. Dubkova

2005-09-11T23:59:59.000Z

114

NFRC Procedures for Applied Films  

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

Applied Films Applied Films Last update: 12/10/2013 07:29 PM NFRC now has a procedure for adding applied films to substrates in Optics5 and importing those applied film constructions into WINDOW5 to be used in a whole product calculation. The information presented below is provided to help simulators with this process. Feel free to contact us at WINDOWHelp@lbl.gov with questions or comments. NFRC Applied Film Procedure Applied Film Procedures (approved by NFRC) (PDF file) Approved Applied Film List (IGDB 33.0) (PDF file) NFRC Laminate Procedure Training Powerpoint with Examples (This Powerpoint presentation was used in the NFRC web based training sessions in December 2006 and January 2007) PowerPoint Presentation (PPT file) PowerPoint Presentation (PDF file) Help and Troubleshooting

115

Measuring the Influence of Grain-Boundary Misorientation on Thermal Groove Geometry in Ceramic Polycrystals  

E-Print Network [OSTI]

Measuring the Influence of Grain-Boundary Misorientation on Thermal Groove Geometry in Ceramic. The width and depth of the thermal grooves formed by these same grain bound- aries were also measured of the grain-boundary misorientation and thermal groove ge- ometry leads to the observation that grain

Rohrer, Gregory S.

116

Z(N) model of grain-boundary wetting  

Science Journals Connector (OSTI)

Even though van der Waals forces should prevent the wetting of a grain boundary by a liquid at the melting temperature, experiment and simulations indicate an instability in grain-boundary structure in the vicinity of this temperature. We study the structure of analogous boundaries in a Z(N) model in which a region of solid with a given orientation is replaced by a spin in that orientation. Different interfacial behaviors are found for different regions of a model parameter which is related to N. For the value appropriate to grain boundaries, our model suggests that boundaries of a sufficiently large angle should be unstable, not to the intrusion of a layer of liquid, however, but to the intrusion of solid of intermediate orientation. Such an intrusion can occur below the melting temperature.

M. Schick and Wei-Heng Shih

1987-04-01T23:59:59.000Z

117

1.8 - Early Solar Nebula Grains – Interplanetary Dust Particles  

Science Journals Connector (OSTI)

Abstract This chapter examines the compositions, mineralogy, sources, and geochemical significance of interplanetary dust particles (IDPs). Despite their micrometer-scale dimensions and nanogram masses, it is now possible, primarily as a result of advances in small particle handling techniques and analytical instrumentation, to examine \\{IDPs\\} at close to atomic-scale resolution. The most widely used instruments for IDP studies are presently the analytical electron microscope, synchrotron facilities, and the ion microprobe. These laboratory analytical techniques are providing fundamental insights about IDP origins, mechanisms of formation, and grain processing phenomena that were important in the early solar system and presolar environments. At the same time, laboratory data from \\{IDPs\\} are being compared with astronomical data from dust in comets, circumstellar disks, and the interstellar medium. The direct comparison of grains in the laboratory with grains in astronomical environments is known as ‘astromineralogy.’

J.P. Bradley

2014-01-01T23:59:59.000Z

118

PROTOPLANETARY DISK STRUCTURE WITH GRAIN EVOLUTION: THE ANDES MODEL  

SciTech Connect (OSTI)

We present a self-consistent model of a protoplanetary disk: 'ANDES' ('AccretioN disk with Dust Evolution and Sedimentation'). ANDES is based on a flexible and extendable modular structure that includes (1) a 1+1D frequency-dependent continuum radiative transfer module, (2) a module to calculate the chemical evolution using an extended gas-grain network with UV/X-ray-driven processes and surface reactions, (3) a module to calculate the gas thermal energy balance, and (4) a 1+1D module that simulates dust grain evolution. For the first time, grain evolution and time-dependent molecular chemistry are included in a protoplanetary disk model. We find that grain growth and sedimentation of large grains onto the disk midplane lead to a dust-depleted atmosphere. Consequently, dust and gas temperatures become higher in the inner disk (R {approx}< 50 AU) and lower in the outer disk (R {approx}> 50 AU), in comparison with the disk model with pristine dust. The response of disk chemical structure to the dust growth and sedimentation is twofold. First, due to higher transparency a partly UV-shielded molecular layer is shifted closer to the dense midplane. Second, the presence of big grains in the disk midplane delays the freeze-out of volatile gas-phase species such as CO there, while in adjacent upper layers the depletion is still effective. Molecular concentrations and thus column densities of many species are enhanced in the disk model with dust evolution, e.g., CO{sub 2}, NH{sub 2}CN, HNO, H{sub 2}O, HCOOH, HCN, and CO. We also show that time-dependent chemistry is important for a proper description of gas thermal balance.

Akimkin, V.; Wiebe, D.; Pavlyuchenkov, Ya. [Institute of Astronomy of the RAS, Pyatnitskaya str. 48, Moscow (Russian Federation)] [Institute of Astronomy of the RAS, Pyatnitskaya str. 48, Moscow (Russian Federation); Zhukovska, S.; Semenov, D.; Henning, Th. [Max-Planck-Institute for Astronomy, Koenigstuhl 17, D-69117 Heidelberg (Germany)] [Max-Planck-Institute for Astronomy, Koenigstuhl 17, D-69117 Heidelberg (Germany); Vasyunin, A. [Department of Chemistry, The University of Virginia, VA (United States)] [Department of Chemistry, The University of Virginia, VA (United States); Birnstiel, T., E-mail: akimkin@inasan.ru, E-mail: dwiebe@inasan.ru, E-mail: pavyar@inasan.ru, E-mail: zhukovska@mpia.de, E-mail: semenov@mpia.de, E-mail: henning@mpia.de, E-mail: anton.vasyunin@gmail.com, E-mail: tbirnstiel@cfa.harvard.edu [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)

2013-03-20T23:59:59.000Z

119

Dry milling properties of selected sorghum grain varieties  

E-Print Network [OSTI]

and methionine, were present in low concentrations in all the varieties tested by Virnpaksha and Sastry (7). There was considerable variation in the ratio of iso-lr ucine to leucine (7, S). The sorghum k. me 1 contains approximately 3. 4-3. 7% ether extract.... The present importance and bright future of grain sorghum. Cereal Sci. Today 4:23. (1959). 7. Virupaksha. T. K. and Sastry, L. V. S. Studies on ihe protein content and anrino acid composition of some varieties of grain sorghum. J. Agr. and Food Chem. 16...

Krishnaprasad, Mittur Nanjappa

2012-06-07T23:59:59.000Z

120

Grain Sorghum By-Product Feeds for Farm Animals.  

E-Print Network [OSTI]

of feeding trials with farm animals from 1945 throug 1951 to determine the nutritional value and feed usage of the$ bv-products. These experiments were supported in part h grants-in-aid and gifts of by-product feeds from the Cor Products Refining Company... by grants-in-aid from the Corn Products Refining Company. GRAIN SORGHUM BY-PRODUCT FEEDS FOR FARM ANIMALS GRAIN SORGHUM 80.5 million bu. I\\ \\I 30.55% total \\ WHEAT 59.6 million bu. 27.16 % total CORN / 64.3 million bu. Figure 3. Ten-year average...

1951-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

Research on Farm Drying and Storage of Sorghum Grain.  

E-Print Network [OSTI]

in the 60-35-5 ratio; ethylene tlichloride, carbon tetrachloride, ethylene dibro- TABLE 1. COMPARISON OF ABOVE GRAIN AND BIN WALL TCMPCRATURES IN VARIOUS TYPES OF BINS AT DIFFER- ENT TIMES DURING THE DAY --- - A- heric temperature, Average temperature.... degrees F' 7 -- bin and time of day August September December Almosp type of 1 - At mosp heric temperature 8:00 a.m. 84 78 53 2:00 p.m. 97 9 1 65 18-foot diameter steel bin. painted aluminum Above grain 8:00 a.m. 85 80 51 2:00 p.m. 103 98 70...

Redlinger, L. M.; Davenport, M. G.; Sorenson Jr., J. W.; Kline, G. L.; Aldred, W. H.

1957-01-01T23:59:59.000Z

122

Is the silicate emission feature only influenced by grain size?  

E-Print Network [OSTI]

The flattening of the 10mu silicate emission feature observed in the spectra of T Tauri and Herbig Ae/Be stars is usually interpreted as an indicator of grain growth. We show in this paper that a similar behaviour of the feature shape occurs when the porosity of composite grains varies. The fluffy aggregates, having inclusions of different sizes, were modeled by multi-layered spheres consisting of amorphous carbon, amorphous silicate and vacuum. It is also found that the inclusion of crystalline silicates in composite porous particles can lead to a shift of the known resonances and production of new ones.

N. V. Voshchinnikov; Th. Henning

2008-03-23T23:59:59.000Z

123

Journal of Applied Ecology 2004  

E-Print Network [OSTI]

Journal of Applied Ecology 2004 41, 922­933 © 2004 British Ecological Society Blackwell Publishing that might guide management decisions. We tested whether ideas from landscape ecology (local vs. landscape-scale, Sacramento River, succession, vegetation Journal of Applied Ecology (2004) 41, 922­933 Introduction More than

Holl, Karen

124

Dust Grain-Size Distributions From MRN to MEM  

E-Print Network [OSTI]

Employing the Maximum Entropy Method algorithm, we fit interstellar extinction measurements which span the wavelength range 0.125-3 micron. We present a uniform set of MEM model fits, all using the same grain materials, optical constants and abundance constraints. In addition, we are taking advantage of improved UV and IR data and better estimates of the gas-to-dust ratio. The model fits cover the entire range of extinction properties that have been seen in the Galaxy and the Magellanic Clouds. The grain models employed for this presentation are the simplistic homogeneous spheres models (i.e., Mathis, Rumpl, & Nordsieck 1977) with two (graphite, silicate) or three (graphite, silicate, amorphous carbon) components. Though such usage is only a first step, the results do provide interesting insight into the use of grain size as a diagnostic of dust environment. We find that the SMC Bar extinction curve cannot be fit using carbon grains alone. This is a challenge to the recent observational result indicating little silicon depletion in the SMC.

Geoffrey C. Clayton; Michael J. Wolff; Ulysses J. Sofia; K. D. Gordon; K. A. Misselt

2003-01-24T23:59:59.000Z

125

FEA Simulations of Magnets with Grain Oriented Steel  

SciTech Connect (OSTI)

One of the potential successors of the Large Hadron Collider is a Muon Col- lider. Muons are short-lived particles, which therefore require fast acceleration. One potential avenue is a very fast cycling cyclotron, where the bending is sup- plied by a combination of fixed-field superconducting magnets and fast ramping normal conducting iron-cored coils. Due to the high ramping rate (around 1 kHz) eddy current and hysteresis losses are a concern. One way to overcome these is by using grain-oriented soft-iron, which promises superior magnetic properties in the direction of the grains. This note summarizes efforts to include the anisotropic material properties of grain-oriented steel in finite element analysis to predict the behaviour of the dipole magnets for this accelerator. It was found that including anisotropic material properties has a detrimental effect on model convergence. During this study it was not possible to include grain oriented steel with an accuracy necessary to study the field quality of a dipole magnet.

Witte H.

2012-08-06T23:59:59.000Z

126

Development of a portable grain mass flow sensor test rig  

Science Journals Connector (OSTI)

A portable grain mass flow sensor test rig was built to measure the accuracy of a mass flow sensor with dual use in the field as well as in the lab. Concurrently, a synchronization method was developed that employs GPS timing data to synchronize the ... Keywords: Mass flow sensor, Test rig, Yield monitor accuracy, Yield monitor error

M. Loghavi; R. Ehsani; R. Reeder

2008-05-01T23:59:59.000Z

127

Optical method for the determination of grain orientation in films  

DOE Patents [OSTI]

A method for the determination of grain orientation in a film sample is provided comprising the steps of measuring a first transient optical response of the film and determining the contribution to the transient optical response arising from a change in the energy distribution of the electrons in the sample, determining the contribution to the transient optical response arising from a propagating strain pulse within the sample, and determining the contribution to the transient optical response arising from a change in sample temperature of the sample. The grain orientation of the sample may be determined using the contributions to the transient optical response arising from the change in the energy distribution of the electrons, the propagating strain pulse, and the change in sample temperature. Additionally, a method for determination of the thickness of a film sample is provided. The grain orientation of the sample is first determined. The grain orientation, together with the velocity of sound and a propagation time of a strain pulse through the sample are then used to determine the thickness of the film sample.

Maris, Humphrey J. (Barrington, RI)

2001-01-01T23:59:59.000Z

128

Thermodynamics of Protein Folding from Coarse-Grained Models' Perspectives  

E-Print Network [OSTI]

8 Thermodynamics of Protein Folding from Coarse-Grained Models' Perspectives Michael Bachmann applications. In this lecture, we focus on the anal- ysis of mesoscopic models for protein folding, aggregation for a more universal description of the notoriously difficult problem of protein fold- ing. In this approach

Janke, Wolfhard

129

On-Farm Storage and Disposal of Sorghum Grain.  

E-Print Network [OSTI]

APRIL 1963 ON-FARM - STORAGE AND DISPOSAL OF SORGHUM GRAIN -- THE AGRICULTURAL AND MECHANICAL COLLEGE OF TEXAS TEXAS AGRICULTURAL EXPERIMENT STATION R. E. PATTERSON. DIRECTOR. COLLEGE ST+TION, TEXAS IN COOPERATION WITH THE U. S. DEPARTMENT... OF AGRICULTURE summary The sorghum storage space. Utilization increases resulted from an increased awareness and acceptance by feeders and millers...

Brown, Charles W.; Moore, Clarence A.

1963-01-01T23:59:59.000Z

130

On the Absorption and Emission Properties of Interstellar Grains  

E-Print Network [OSTI]

Our current understanding of the absorption and emission properties of interstellar grains are reviewed. The constraints placed by the Kramers-Kronig relation on the wavelength-dependence and the maximum allowable quantity of the dust absorption are discussed. Comparisons of the opacities (mass absorption coefficients) derived from interstellar dust models with those directly estimated from observations are presented.

Aigen Li

2005-03-25T23:59:59.000Z

131

Elements of Dry-Grind Corn-Processing Streams 113 Applied Biochemistry and Biotechnology Vol. 134, 2006  

E-Print Network [OSTI]

is produced from corn by either wet-milling or dry-grind processing. In wet milling, several coproducts. Samples of corn, ground corn, beer, wet grains, syrup, and DDGS were obtained from nine dry-grind plantsElements of Dry-Grind Corn-Processing Streams 113 Applied Biochemistry and Biotechnology Vol. 134

132

Structure, chemistry, and stress corrosion cracking of grain boundaries in alloys 600 and 690  

SciTech Connect (OSTI)

The microstructure in six commercial batches of alloys 600 and 690 has been investigated using scanning electron microscopy (SEM), analytical transmission electron microscopy (ATEM), atom probe field ion microscopy (APFIM), and secondary ion mass spectroscopy (SIMS). The materials were also tested with respect to their resistance to intergranular stress corrosion cracking (IGSCC) in high-purity water at 365 C. Applied microanalytical techniques allowed direct measurement of carbon concentration in the matrix together with determination of grain boundary microstructure and microchemistry in all material conditions. The distribution of oxygen near a crack in material tested with respect to IGSCC was also investigated. The role of carbon and chromium and intergranular precipitates on IGSCC is discussed.

Stiller, K. [Chalmers Univ. of Technology, Goeteborg (Sweden). Dept. of Physics; Nilsson, J.O. [AB Sandvik Steel, Sandviken (Sweden); Norring, K. [Studsvik Material AB, Nykoeping (Sweden)

1996-02-01T23:59:59.000Z

133

Experimental determination of strain partitioning among individual grains in the bulk of an aluminium multicrystal  

SciTech Connect (OSTI)

A recently developed marker-based technique for mapping of the displacement gradient tensor and the strain throughout the bulk of optically opaque specimens is presented and applied to an aluminium alloy multicrystal. Through investigations at 4%, 10% and 14% axial strains, the internal strain field is observed to be non-homogenous with the observed patterns present throughout the range of strains investigated. The morphology of the strain field is visualized with a resolution better than 50{mu}m and variations are tentatively associated with the grain structure as recorded by EBSD. Future applications of the technique in combination with other 3-dimensional approaches are discussed with respect to comparison with Finite Element modelling approaches.

Haldrup, K. [Metal Structures in 4D, Materials Research Department, Riso National Laboratory/ DTU, Frederiksborgvej 399, 4000, Roskilde Denmark (Denmark)], E-mail: kristoffer.haldrup@risoe.dk; Beckmann, F. [GKSS-Research Center Geesthacht, 21502 Geesthacht (Germany); Nielsen, S.F. [Materials Research Department, Riso National Laboratory/ DTU, Frederiksborgvej 399, 4000, Roskilde Denmark (Denmark); Wert, J.A. [Metal Structures in 4D, Materials Research Department, Riso National Laboratory/ DTU, Frederiksborgvej 399, 4000, Roskilde Denmark (Denmark); Materials Research Department, Riso National Laboratory/ DTU, Frederiksborgvej 399, 4000, Roskilde Denmark (Denmark)

2008-07-15T23:59:59.000Z

134

Virtual ultrasound sources for inspecting nuclear components of coarse-grained structure  

SciTech Connect (OSTI)

This work describes an ultrasonic inspection procedure designed for verifying coarse-grained structure materials, which are commonly used on nuclear reactors. In this case, conventional phased array techniques cannot be used due to attenuating characteristics and backscattered noise from microstructures inside the material. Thus, synthetic aperture ultrasonic imaging (SAFT) is used for this approach in contact conditions. In order to increase energy transferred to the medium, synthetic transmit aperture is formed by several elements which generate a diverging wavefront equivalent to a virtual ultrasound source behind the transducer. On the other hand, the phase coherence technique has been applied to reduce more structural noise and improve the image quality. The beamforming process has been implemented over a GPU platform to reduce computing time.

Brizuela, J. [Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires (Argentina); Katchadjian, P.; Desimone, C.; Garcia, A. [INEND-UAENDE, Comisión Nacional de Energía Atómica, Buenos Aires (Argentina)

2014-02-18T23:59:59.000Z

135

Influence of Aluminum Content on Grain Refinement and Strength of AZ31 Magnesium GTA Weld Metal  

SciTech Connect (OSTI)

The goal is to characterize the effect of Al content on AZ31 weld metal, the grain size and strength, and examine role of Al on grain refinement. The approach is to systematically vary the aluminum content of AZ31 weld metal, Measure average grain size in weld metal, and Measure cross-weld tensile properties and hardness. Conclusions are that: (1) increased Al content in AZ31 weld metal results in grain refinement Reason: higher undercooling during solidification; (2) weld metal grain refinement resulted in increased strength & hardness Reason: grain boundary strengthening; and (3) weld metal strength can be raised to wrought base metal levels.

Babu, N. Kishore [Singapore Institute of Manufacturing Technology; Cross, Carl E. [Los Alamos National Laboratory

2012-06-28T23:59:59.000Z

136

Applied Sedimentology | Open Energy Information  

Open Energy Info (EERE)

Sedimentology Jump to: navigation, search OpenEI Reference LibraryAdd to library Book: Applied Sedimentology Author R.C. Salley Published Academic Press, 2000 DOI Not Provided...

137

temperature heat pumps applied to  

E-Print Network [OSTI]

Very high- temperature heat pumps applied to energy efficiency in industry Application June 21th 2012 Energy efficiency : A contribution to environmental protection Kyoto Copenhage Emission, plastics Partnership : EDF R&D Bil

Oak Ridge National Laboratory

138

IIT SCHOOL OF APPLIED TECHNOLOGY  

E-Print Network [OSTI]

INDUSTRIAL TECHNOLOGY AND MANAGEMENT IIT SCHOOL OF APPLIED TECHNOLOGY PREPARING SKILLED INDIVIDUALS, INDUSTRIAL FACILITIES, SUPPLY CHAIN MANAGEMENT, SUSTAINABILITY AND MANUFACTURING TECHNOLOGY. #12;BE ONE to assess, implement, and utilize current technologies, and to learn how to manage industrial operations

Heller, Barbara

139

National High Magnetic Field Laboratory - Applied Superconductivity...  

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

the coupling between the gaps, and whether this produces new properties when quantized field lines move along grain boundaries or when MgB2 is exposed to microwave radiation. The...

140

Roughening of the interface between grains and liquid matrix in sintered TaC-20Ni  

Science Journals Connector (OSTI)

The grains in TaC-20 wt pct Ni alloy prepared by liquidphase sintering at 1480°C have orthorhombic shapes with flat {100} faces and sharp edges. These grains show abnormal growth. When sintered at 2020°C, the gra...

Young Kyu Cho; Duk Yong Yoon; Jung Hoon Choi…

2005-09-01T23:59:59.000Z

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


141

Abundances of presolar silicon carbide grains in primitive meteorites determined by NanoSIMS  

E-Print Network [OSTI]

Abundances of presolar silicon carbide grains in primitive meteorites determined by NanoSIMS Jemma carbide (SiC) grains estimated from their noble gas components show significant variations in even

Nittler, Larry R.

142

Modeling Elasto-Plastic Behavior of Polycrystalline Grain Structure of Steels at Mesoscopic Level  

E-Print Network [OSTI]

Modeling Elasto-Plastic Behavior of Polycrystalline Grain Structure of Steels at Mesoscopic Level. The constitutive model of crystal grains utilizes anisotropic elasticity and crystal plasticity. Commercially be considered macroscopically homogeneous. Elastic and rate independent plastic deformation modes are considered

Cizelj, Leon

143

Stagewise Dilute-Acid Pretreatment and Enzyme Hydrolysis of Distillers’ Grains and Corn Fiber  

Science Journals Connector (OSTI)

Distillers’ grains and corn fiber are the coproducts of the corn dry grind and wet milling industries, respectively. Availability of distillers’ grains and corn fiber at the ethanol plant and their ... three-stag...

Hossein Noureddini; Jongwon Byun; Ta-Jen Yu

2009-11-01T23:59:59.000Z

144

High-strain-rate nanoindentation behavior of fine-grained magnesium alloys  

E-Print Network [OSTI]

The effects of temperature and alloying elements on deformation in the high-strain-rate regime were investigated by testing fine-grained magnesium alloys with an average grain size of 2 ? 3 ?m by a nanoindentation technique. ...

Somekawa, Hidetoshi

145

Low-Cycle Fatigue of Ultra-Fine-Grained Cryomilled 5083 Aluminum Alloy  

E-Print Network [OSTI]

of an Ultra-Fine Grained Aluminum Alloy, Poster Session,Grained Cryomilled 5083 Aluminum Alloy J.L. WALLEY, E.J.consistent with other MA aluminum alloys and is attributed

Walley, J. L.; Lavernia, E. J.; Gibeling, J. C.

2009-01-01T23:59:59.000Z

146

CX-011566: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Mechanical Behavior of Uranium Oxide (UO2) at Sub-grain Length Scales: Quantification of Elastic, Plastic and Creep Properties via Microscale Testing CX(s) Applied: B3.6 Date: 11/18/2013 Location(s): Arizona Offices(s): Idaho Operations Office

147

Availability of selected amino acids in sorghum grain and corn determined in ileocecal cannulated finishing pigs  

E-Print Network [OSTI]

trials to determine the availability of selected amino acids in corn and sorghum grain when measured at the distal ileum and in the feces. The cereal diets were based on grains representative of commercial production in Texas. Each pig received both... the corn and sorghum grain diets alternatively during two consecutive 18 day periods. A purified, non-protein diet was used to determine the endogenous amino acids in the ileal digests and feces. The apparent availability of amino acids from both grains...

Easter, Robert Arnold

2012-06-07T23:59:59.000Z

148

Grain boundary microstructure, chemistry, and IGSCC in Alloy 600 and Alloy 690  

SciTech Connect (OSTI)

The resistance to intergranular stress corrosion cracking of six different Alloy 600 and Alloy 690 steam generator tubes has been investigated. The composition of the materials at grain boundaries has been investigated using analytical transmission electron microscopy and atom probe field ion microscopy techniques. The depletion of chromium at the grain boundaries has been related to the type of grain boundary precipitates. Segregation of carbon and boron to the grain boundaries has been observed and quantified.

Norring, K. [Studsvik AB, Nykoeping (Sweden); Stiller, K. [Chalmers Univ. of Technology, Goeteborg (Sweden); Nilsson, J.O. [AB Sandvik Steel, Sandviken (Sweden)

1992-12-31T23:59:59.000Z

149

Prececal, postileal and total tract starch digestion in ponies fed corn, oats, barley or sorghum grain  

E-Print Network [OSTI]

Barley Oats Corn Sorghum Sorghum Barley Oats Corn Whole grains were purchased from a local commercial supplier. All grains were elevator run. Prior to ration formulation grains were coarsely cracked in an automatic roller mill..., chromium and starch by the same procedures except 5 ml of wet sample was used for each analy- For determination of amylase content and viscosity, grains were pulverized in a laboratory Udy mill through a 1 mm screen. An alkaline hydroylsate was prepared...

Arnold, Fairfax Ferguson

2012-06-07T23:59:59.000Z

150

Core, Grain-Size, and Porosity Data from the Boise Hydrogeophysical Research Site  

E-Print Network [OSTI]

.6. Grain-Size Analysis Data Sheets From Outcrops and Quarries........................66 7.7. Well Master

Barrash, Warren

151

Current transport along grain boundaries in d-wave superconductors.  

SciTech Connect (OSTI)

The use of a classic phase retrieval algorithm has been previously used to determine the local critical current J{sub c}(x) along the length of grain boundary Josephson junctions that can be characterized using a standard s-wave model. The phase retrieval approach has been modified for use with d-wave dominated superconductors to allow for negative local currents along the boundary. In general solutions to the 1-D phase problem are not unique, however in the present work special constraints are employed experimentally to ensure uniqueness. The various current distribution solutions and their possible uniqueness are explored. The solutions are consistent with most existing d-wave Josephson junction boundary models and can be used to understand the basic current distribution along 45 degree YaBa{sub 2}Cu{sub 3}O{sub 7-x} grain boundary junctions as well as providing a means for mapping the location of self-generated flux cores.

Carmody, M.; Marks, L. D.; Merkle, K. L.; Materials Science Division; Northwestern Univ.

2002-05-01T23:59:59.000Z

152

Grain boundary characterization in an X750 alloy  

SciTech Connect (OSTI)

Grain boundary chemistry in an X750 Ni alloy was analyzed by atom probe tomography in an effort to clarify the possible roles of elemental segregation and carbide presence on the stress corrosion cracking behavior of Ni alloys. Two types of cracks are observed: straight cracks along twin boundaries and wavy cracks at general boundaries. It was found that carbides (M23C6 and TiC) are present at both twin and general boundaries, with comparable B and P segregation for all types of grain boundaries. Twin boundaries intercept ?’ precipitates while the general boundaries wave around the ?’ and carbide precipitates. Near a crack tip, oxidation takes place on the periphery of carbide precipitate.

Kevin Fisher; Sebastien Teysseyre; Emmanuelle Marquis

2012-11-01T23:59:59.000Z

153

[Grain boundary and interface kinetics during ion irradiation  

SciTech Connect (OSTI)

Proposed here is renewed support of a research program focused on interface motion and phase transformation during ion irradiation, with emphasis on elemental semiconductors. Broadly speaking, the aims of this program are to explore defect kinetics in amorphous and crystalline semiconductors, and to relate defect dynamics to interface motion and phase transformations. Over the last three years, we initiated a program under DOE support to explore crystallization and amorphization of elemental semiconductors under irradiation. This research has enabled new insights about the nature of defects in amorphous semiconductors and about microstructural evolution in the early stages of crystallization. In addition, we have demonstrated almost arbitrary control over the relative rates of crystal nucleation and crystal growth in silicon. As a result, the impinged grain microstructure of thin (100 nm) polycrystalline films crystallized under irradiation can be controlled with grain sizes ranging from a few nanometers to several micrometers, which may have interesting technological implications.

Atwater, H.A.

1991-12-31T23:59:59.000Z

154

(Grain boundary and interface kinetics during ion irradiation)  

SciTech Connect (OSTI)

Proposed here is renewed support of a research program focused on interface motion and phase transformation during ion irradiation, with emphasis on elemental semiconductors. Broadly speaking, the aims of this program are to explore defect kinetics in amorphous and crystalline semiconductors, and to relate defect dynamics to interface motion and phase transformations. Over the last three years, we initiated a program under DOE support to explore crystallization and amorphization of elemental semiconductors under irradiation. This research has enabled new insights about the nature of defects in amorphous semiconductors and about microstructural evolution in the early stages of crystallization. In addition, we have demonstrated almost arbitrary control over the relative rates of crystal nucleation and crystal growth in silicon. As a result, the impinged grain microstructure of thin (100 nm) polycrystalline films crystallized under irradiation can be controlled with grain sizes ranging from a few nanometers to several micrometers, which may have interesting technological implications.

Atwater, H.A.

1991-01-01T23:59:59.000Z

155

Collisional effects on nonlinear ion drag force for small grains  

SciTech Connect (OSTI)

The ion drag force arising from plasma flow past an embedded spherical grain is calculated self-consistently and non-linearly using particle in cell codes, accounting for ion-neutral collisions. Using ion velocity distribution appropriate for ion drift driven by a force field gives wake potential and force greatly different from a shifted Maxwellian distribution, regardless of collisionality. The low-collisionality forces are shown to be consistent with estimates based upon cross-sections for scattering in a Yukawa (shielded) grain field, but only if non-linear shielding length is used. Finite collisionality initially enhances the drag force, but only by up to a factor of 2. Larger collisionality eventually reduces the drag force. In the collisional regime, the drift distribution gives larger drag than the shift distribution even at velocities where their collisionless drags are equal. Comprehensive practical analytic formulas for force that fit the calculations are provided.

Hutchinson, I. H.; Haakonsen, C. B. [Plasma Science and Fusion Center and Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)] [Plasma Science and Fusion Center and Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2013-08-15T23:59:59.000Z

156

Kinetically determined shapes of grain boundaries in CVD graphene  

E-Print Network [OSTI]

Predicting the shape of grain boundaries is essential to control results of the growth of large graphene crystals. A global energy minimum search predicting the most stable final structure contradicts experimental observations. Here we present Monte Carlo simulation of kinetic formation of grain boundaries (GB) in graphene during collision of two growing graphene flakes. Analysis of the resulting GBs for the full range of misorientation angles $\\alpha$ allowed us to identify a hidden (from post facto analysis such as microscopy) degree of freedom - the edge misorientation angle $\\beta$. Edge misorientation characterizes initial structure rather than final structure and therefore provides more information about growth conditions. Use of $\\beta$ enabled us to explain disagreements between the experimental observations and theoretical work. Finally, we report an analysis of an interesting special case of zero-tilt GBs for which structure is determined by two variables describing the relative shift of initial isl...

Bets, Ksenia V; Yakobson, Boris I

2014-01-01T23:59:59.000Z

157

Performance of Large grain and Single Crystal Niobium Cavities  

SciTech Connect (OSTI)

We have fabricated and tested several single and one multi-cell cavity made from large grain niobium of four different ingots. Two cavities at a frequency of ~ 2.2 GHz were made from single crystal sheets. Large grain material was used for four single cell cavities of the HG â and OC shapes, a 7-cell cavity of the HG â shape â all resonating at 1500 MHz â and an ILC_LL single cell cavity at 1300 MHz. We began to explore also different chemical polishing baths such as a 1:1:1 and a 1:1:2 buffered solution and explored the change of cavity performance as a function of material removal. The results from these preliminary investigations are reported in this contribution.

Kneisel, Peter; Ciovati, Gianluigi; Sekutowicz, Jacek

2006-07-01T23:59:59.000Z

158

Structural Dependence of Grain Boundary Resistivity in Copper Nanowires  

SciTech Connect (OSTI)

We report the direct measurement of individual grain boundary (GB) resistances and the critical role of GB structure in the increased resistivity in copper nanowires. By measuring both intra- and inter-grain resistance with a four-probe scanning tunneling microscope, large resistance jumps are revealed owing to successive scattering across high-angle random GBs, while the resistance changes at twin and other coincidence boundaries are negligibly small. The impurity distributions in the nanowires are characterized in correlating to the microstructures. The resistance of high symmetry coincidence GBs and the impurity contributions are then calculated using a first-principle method which confirms that the coincidence GBs have orders of magnitude smaller resistance than the high-angle random GBs.

Evans III, Boyd Mccutchen [ORNL; Kenik, Edward A [ORNL; Kim, Tae Hwan [ORNL; Kulkarni, Nagraj S [ORNL; Li, An-Ping [ORNL; Meyer III, Harry M [ORNL; Nicholson, Don M [ORNL; Radhakrishnan, Bala [ORNL; Zhang, Xiaoguang [ORNL

2011-01-01T23:59:59.000Z

159

BNL | Accelerators for Applied Research  

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

Accelerators for Applied Research Accelerators for Applied Research Brookhaven National Lab operates several accelerator facilities dedicated to applied research. These facilities directly address questions and concerns on a tremendous range of fields, including medical imaging, cancer therapy, computation, and space exploration. Leading scientists lend their expertise to these accelerators and offer crucial assistant to collaborating researchers, pushing the limits of science and technology. Interested in gaining access to these facilities for research? See the contact number listed for each facility. RHIC tunnel Brookhaven Linac Isotope Producer The Brookhaven Linac Isoptope Producer (BLIP)-positioned at the forefront of research into radioisotopes used in cancer treatment and diagnosis-produces commercially unavailable radioisotopes for use by the

160

Intergranular degradation assessment via random grain boundary network analysis  

DOE Patents [OSTI]

A method is disclosed for determining the resistance of polycrystalline materials to intergranular degradation or failure (IGDF), by analyzing the random grain boundary network connectivity (RGBNC) microstructure. Analysis of the disruption of the RGBNC microstructure may be assess the effectiveness of materials processing in increasing IGDF resistance. Comparison of the RGBNC microstructures of materials exposed to extreme operating conditions to unexposed materials may be used to diagnose and predict possible onset of material failure due to

Kumar, Mukul (San Ramon, CA); Schwartz, Adam J. (Pleasanton, CA); King, Wayne E. (San Ramon, CA)

2002-01-01T23:59:59.000Z

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


161

Ground Versus Unground Grain for Lactating Dairy Cows.  

E-Print Network [OSTI]

LIBRARY, A & hf COLLEGE, CAMPUS. TEXAS AGRICULTURAL EXPERIMENT STATION A. B. CONNER, DIFkECTOR COLLE~E STATION, BRAZOS COUNTY, TEXAS BULLETIN NO. 530 SEPTEMBER, 193 6 DIVISION OF DAIRY HUSBANDRY Ground Versus Unground Grain far Lactating... of the Agricultural and nlechanical College of Texas. 6 BULLETIN NO. 530, TEXAS AGRICULTURAL EXPERIMENT STATION was utilized." Cave and Fitch (2) found that as high as 90 per cent of the seeds in sargo silage passed through the cow unmasticated. The results...

Darnell, A. L. (Albert Laurie); Copeland, O. C. (Orlin Cephas)

1936-01-01T23:59:59.000Z

162

Grain Sorghums Versus Corn for Fattening Lambs : Third Experiment.  

E-Print Network [OSTI]

t J. BKAfCT, CAMPUS, TEXAS AGRICULTURAL EXPERIMENT STATION AGRICULTURAL AND MECHANICAL COLLEGE OF TEXAS W. B. BIZZELL, President BULLETIN NO. 306 FEBRUARY, 1923 DIVISION OF ANIMAL INDUSTRY GRAIN SORGHUMS VERSUS CORN FOR FATTENING LAMBS...~ON Ezecutioe Assisfant CRARLES GOR~YCKI Technical Assistant M P. HOLLEMAN JL., Assistanf Chief Clerk R.'N. BURROWS, 'M. A.. Research Librarian VETERINARY SCIENCE *M FRANCIS D. V. M Chief H.. SCHMIDT,' D. V. ~.."~eterinarian V. J. BRAUNER, D. V. M...

Jones, J. M. (Joseph McKinley); Dickson, R. E.

1923-01-01T23:59:59.000Z

163

Statistics of turbulence via polarimetry: alignment of grains and atoms  

E-Print Network [OSTI]

Most astrophysical fluids are turbulent and magnetized. Fluctuations of polarization provide a promising way to study astrophysical magnetic turbulence. We discuss polarization that arises from grains and atoms aligned in respect to magnetic field, describe the processes of alignment, explain when the alignment reflects the direction of magnetic field. We show that temporal fluctuations of interplanetary magnetic field can be studied using aligned sodium atoms.

A. Lazarian; Huirong Yan

2005-05-29T23:59:59.000Z

164

Subcritical Creep Compaction of Quartz Sand at Diagenetic Conditions: Effects of Water and Grain Size  

E-Print Network [OSTI]

1 Subcritical Creep Compaction of Quartz Sand at Diagenetic Conditions: Effects of Water and Grain growth. Creep rates are explained by subcritical crack growth, as governed by water-silicate reactions through subcritical cracking and grain rearrangement of medium- grained, porous, wet quartz sands can

Chester, Frederick M.

165

Energy and Greenhouse Gas Profiles of Polyhydroxybutyrates Derived from Corn Grain: A Life Cycle Perspective  

Science Journals Connector (OSTI)

Energy and Greenhouse Gas Profiles of Polyhydroxybutyrates Derived from Corn Grain: A Life Cycle Perspective ... Polyhydroxybutyrates derived from corn grain could reduced nonrenewable energy consumption and greenhouse gas emissions compared to petroleum-based polymer. ... Cradle-to-gate environmental performance of PHB derived from corn grain is evaluated through life cycle assessment (LCA), particularly nonrenewable energy consumption and greenhouse gas emissions. ...

Seungdo Kim; Bruce E. Dale

2008-09-18T23:59:59.000Z

166

The Use of Conditioned Air for Maintaining Quality of Stored Sorghum Grain.  

E-Print Network [OSTI]

.- ...... '. .................................... 21 .............................................. Design Method No: 3 21 Effects of Conditioned-air Storage on Grain Quality ........................................................... II! Insect Control...,~ of controlled storage environments for bulk yain are discussed. The initial vapor pressure of tile moisture in the grain and the partial pressure of !lie vapor in the conditioned air circulating through llle grain mass were found to be very important tl...

Person, Nat K. Jr.; Sorenson, J. W. Jr.; McCune, W. E.; Hobgood, Price

1967-01-01T23:59:59.000Z

167

The equilibrium crystal shape of strontium titanate and its relationship to the grain boundary plane distribution  

E-Print Network [OSTI]

The equilibrium crystal shape of strontium titanate and its relationship to the grain boundary system, strontium titanate, is compared with the grain boundary plane dis- tribution (GBPD) as a function of temperature. Strontium titanate has a pronounced surface energy anisotropy and a grain growth anomaly

Rohrer, Gregory S.

168

Grain refinement and texture development of cast bi90sb10 alloy via severe plastic deformation  

E-Print Network [OSTI]

recrystallization and causes the development of a bimodal microstructure consisting of fine grains (5-30 micron) and coarse grains (50-300 micron). ECAE processing of homogenizied Bi-Sb alloy causes grain refinement and produces a more uniform microstructure...

Im, Jae-taek

2009-05-15T23:59:59.000Z

169

Probabilistic fatigue life prediction model for alloys with defects: applied to A206  

SciTech Connect (OSTI)

Presented here is a model for the prediction of fatigue life based on the statistical distribution of pores, intermetallic particles and grains. This has been applied to a cast Al alloy A206, before and after friction stir processing (FSP). The model computes the probability to initiate a small crack based on the probability of finding combinations of defects and grains on the surface. The crack initiation and propagation life of small cracks due to these defect and grain combinations are computed and summed to obtain the total fatigue life. The defect and grain combinations are ranked according to total fatigue life and the failure probability computed. Bending fatigue experiments were carried out on A206 before and after FSP. FSP eliminated the porosity, broke down the particles and refined the microstructure. The model predicted the fatigue life of A206 before and after FSP well. The cumulative probability distribution vs. fatigue life was fitted to a three parameter Weibull distribution function. The scatter reduced after FSP and the threshold of fatigue life increased. The potential improvement in the fatigue life of A206 for a microstructure consisting of a finer distribution of particle sizes after FSP was predicted using the model.

Kapoor, Rajeev; Sree Hari Rao, V.; Mishra, Rajiv S.; Baumann, John A.; Grant, Glenn J.

2011-05-31T23:59:59.000Z

170

The case for applied astronomy  

Science Journals Connector (OSTI)

......research-article Features The case for applied astronomy Martin Elvis Martin Elvis is an astronomer...Elvis looks at our golden age of astronomy and gives his personal view of what the future may hold for space and astronomy research, as that golden age hits......

Martin Elvis

2014-02-01T23:59:59.000Z

171

apply skills & experience build skills  

E-Print Network [OSTI]

senior apply skills & experience junior build skills sophomore research & execute freshman explore options1 2 3 4 s u p p o r t4-year career action plan parent about the center for career development Remind your student that it is never too soon or too late to seek an internship or summer job. build

Alvarez, Pedro J.

172

Applying Science to Everyday Life  

Science Journals Connector (OSTI)

Applying Science to Everyday Life ... Basic science ideas and their application appear regularly in people’s daily lives. ... It should be the goal of chemistry educators and other teachers of science to provide their students (and others when given the opportunity) with an appreciation of some basic principles. ...

Norbert J. Pienta

2014-11-11T23:59:59.000Z

173

Journal of Applied Ecology 2004  

E-Print Network [OSTI]

herbivores provide goods and income to rural communities, have major impacts on land use and habitats-Bianchet REVIEW The management of wild large herbivores to meet economic, conservation and environmental is applied to their management across the globe. To be effective, however, management has to be science

Festa-Bianchet, Marco

174

APPLIED THERMAL ENGINEERING Manuscript Draft  

E-Print Network [OSTI]

the heat pump from the grid during the two hours of electrical peak power · Design of a new heat exchangerAPPLIED THERMAL ENGINEERING Manuscript Draft TITLE: Experimental assessment of a PCM to air heat This paper presents a heat exchanger prototype containing PCM material designed to provide a 1kW heating

Paris-Sud XI, Université de

175

Applied Sustainability Political Science 319  

E-Print Network [OSTI]

1 Applied Sustainability Political Science 319 College of Charleston Spring 2013 Day/Time: TH 1 Address: fisherb@cofc.edu Office: 284 King Street, #206 (Office of Sustainability) Office Hours: by appt sustainability. It will focus on the development of semester-long sustainability projects, from conception

Young, Paul Thomas

176

Profitable Grain Sorghum Production in the Rolling Plains.  

E-Print Network [OSTI]

and move the treated soil into the row. Do not apply either of these herbicides preplant to preemergence. Herbicides to apply postemerge, over the top of sorghum, include atrazine, bentazon (Basagran?), bromoxynil (Bromanil ME 4?), dicamba (Banvel...

Alexander, U.U.; Coffman, Cloyce G.; Boring, Emory P. III; McCoy, Norman; Weaver, Dave

1987-01-01T23:59:59.000Z

177

Trace, isotopic analysis of micron-sized grains -- Mo, Zr analysis of stardust (SiC and graphite grains).  

SciTech Connect (OSTI)

Secondary Neutral Mass Spectrometry using resonant laser ionization can provide for both high useful yields and high discrimination while maintaining high lateral and depth resolutions. An example of the power of the method is measurement of the isotopic composition of Mo and Zr in 1-5 {micro}m presolar SiC and graphite grains isolated from the Murchison CM2 meteorite for the first time. These grains have survived the formation of the Solar System and isotopic analysis reveals a record of the stellar nucleosynthesis present during their formation. Mo and Zr, though present at less than 10 ppm in some grains, are particularly useful in that among their isotopes are members that can only be formed by distinct nucleosynthetic processes known as s-, p-, and r-process. Successful isotopic analysis of these elements requires both high selectivity (since these are trace elements) and high efficiency (since the total number of atoms available are limited). Resonant Ionization Spectroscopy is particularly useful and flexible in this application. While the sensitivity of this t.edmique has often been reported in the past, we focus hereon the very low noise properties of the technique. We further demonstrate the efficacy of noise removal by two complimentary methods. First we use the resonant nature of the signal to subtract background signal. Second we demonstrate that by choosing the appropriate resonance scheme background can often be dramatically reduced.

Pellin, M. J.; Nicolussi, G. K.

1998-02-19T23:59:59.000Z

178

Grain boundary structure and solute segregation in titanium-doped sapphire bicrystals  

SciTech Connect (OSTI)

Solute segregation to ceramic grain boundaries governs material processing and microstructure evolution, and can strongly influence material properties critical to engineering performance. Understanding the evolution and implications of grain boundary chemistry is a vital component in the greater effort to engineer ceramics with controlled microstructures. This study examines solute segregation to engineered grain boundaries in titanium-doped sapphire (Al2O3) bicrystals, and explores relationships between grain boundary structure and chemistry at the nanometer scale using spectroscopic and imaging techniques in the transmission electron microscope (TEM). Results demonstrate dramatic changes in solute segregation stemming from small fluctuations in grain boundary plane and structure. Titanium and silicon solute species exhibit strong tendencies to segregate to non-basal and basal grain boundary planes, respectively. Evidence suggests that grain boundary faceting occurs in low-angle twis t boundaries to accommodate nonequilibrium solute segregation related to slow specimen cooling rates, while faceting of tilt grain boundaries often occurs to expose special planes of the coincidence site lattice (CSL). Moreover, quantitative analysis of grain boundary chemistry indicates preferential segregation of charged defects to grain boundary dislocations. These results offer direct proof that static dislocations in ionic materials can assume a net charge, and emphasize the importance of interactions between charged point, line, and planar defects in ionic materials. Efforts to understand grain boundary chemistry in terms of space charge theory, elastic misfit and nonequilibrium segregation are discussed for the Al2O3 system.

Taylor, Seth T.

2002-05-17T23:59:59.000Z

179

Roadmap: Technical and Applied Studies -Computer Technology Applied Computer Security and Forensics Technology -Bachelor of Technical and Applied Studies  

E-Print Network [OSTI]

Roadmap: Technical and Applied Studies - Computer Technology Applied Computer Security (2.000) grade. #12;Roadmap: Technical and Applied Studies - Computer Technology Applied Computer and Forensics Technology - Bachelor of Technical and Applied Studies RE-BTAS-TAS-CTAC Regional College Catalog

Khan, Javed I.

180

Nevada applied ecology group publications  

SciTech Connect (OSTI)

Since January 1972, the Nevada Applied Ecology Information Center (NAEIC), Information Research and Analysis Section, Health and Safety Research Division, Oak Ridge National Laboratory, has provided technical information support to the Nevada Applied Ecology Group (NAEG) relevant to the behavior of specific radionuclides, primarily plutonium and americium, in the environment, with special emphasis on pathways to man. This bibliography represents a summary of the biomedical and environmental studies conducted by the NAEG and its contractors. The bibliography focuses on research sponsored by the NAEG. Subject areas of the publications include cover studies of soil, vegetation, animals, microorganisms, resuspension, and meteorology. All references in this publication are stored in a computerized form that is readily available for searches upon request to NAEG and it contractors. 558 refs.

Chilton, B.D.; Pfuderer, H.A.; Cox, T.L. (Oak Ridge National Lab., TN (USA))

1989-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

Modelling the optical properties of composite and porous interstellar grains  

E-Print Network [OSTI]

There are indications that interstellar and interplanetary dust grains have an inhomogeneous and fluffy structure. We investigate different methods to describe light scattering by such composite particles. Both a model of layered particles and discrete dipole calculations for particles with Rayleigh and non-Rayleigh inclusions are used. The calculations demonstrate that porosity is a key parameter for determining light scattering. We find that the optical properties of the layered particles depend on the number and position of layers if the number of layers is small ($\\la 15$). For a larger number of layers the scattering characteristics become independent of the layer sequence. The optical properties of particles with inclusions depend on the size of inclusions provided the porosity is large. The scattering characteristics of very porous particles with inclusions of different sizes are found to be close to those of multi-layered spheres. We compare the results of these calculations with the predictions of the effective medium theories (EMT) which are often used in astronomy as a tool to calculate the optical properties of composite particles. The results of our analysis show that the internal structure of grains (layers versus inclusions) only slightly affects the optics of particles provided the porosity does not exceed 50%. It is also demonstrated that in this case the optical properties of composite grains calculated with EMT agree with the results of the exact method for layered particles. For larger porosity, the standard EMT rules (i.e., Garnett and Bruggeman rules) give reliable results for particles with Rayleigh inclusions only.

N. V. Voshchinnikov; V. B. Il'in; Th. Henning

2004-09-19T23:59:59.000Z

182

Low temperature production of large-grain polycrystalline semiconductors  

DOE Patents [OSTI]

An oxide or nitride layer is provided on an amorphous semiconductor layer prior to performing metal-induced crystallization of the semiconductor layer. The oxide or nitride layer facilitates conversion of the amorphous material into large grain polycrystalline material. Hence, a native silicon dioxide layer provided on hydrogenated amorphous silicon (a-Si:H), followed by deposited Al permits induced crystallization at temperatures far below the solid phase crystallization temperature of a-Si. Solar cells and thin film transistors can be prepared using this method.

Naseem, Hameed A. (Fayetteville, AR); Albarghouti, Marwan (Loudonville, NY)

2007-04-10T23:59:59.000Z

183

Factors influencing carbohydrate utilization in steers fed processed sorghum grain  

E-Print Network [OSTI]

1!rfluencing Carbohydrate Utilization in Steers Fed Processed Sor, hum Grain (January 1970) John [[syne McNeill, B, S, , Texas 7!yz[ University Directed by: Dr. G, D, Potter Rxperiments wer conducted to determine differences in the chemical a... . Thos&i &late po Lnt cu t 1 ncreasl cl rurainal digcstibilities of s Icmi -f la!ccd and -ecoi&s tii u ' ed grat rs aiid relatively more curb ohyclra Les eni cring th" 1 cw. r trac t 1 n s ' c ers receiving r'n y-ground anrl m ter oni sod rat b...

McNeill, John W

2012-06-07T23:59:59.000Z

184

Atomistic processes of grain boundary motion and annihilation in graphene  

SciTech Connect (OSTI)

The motion and annihilation of a grain boundary (GB) in graphene are investigated by tight-binding molecular dynamics (TBMD) simulation and ab initio local density approximation total energy calculation. A meandering structure of the GB is found to be energetically more favorable than other structures, in good agreement with experiment. It is observed in the TBMD simulation that evaporation of carbon dimers and sequential Stone?Wales transformations of carbon bonds lead to rapid motion and annihilation of the GB. The dimer erection and evaporation are found to proceed by formation of an adatom due to bond breaking. These results shed interesting light on the fabrication of high-quality graphene.

Lee, Gun-Do; Yoon, Euijoon; Wang, Cai-Zhuang; Ho, Kai-Ming

2013-03-19T23:59:59.000Z

185

Economic Considerations in Storing Grain Sorghum in Central Texas.  

E-Print Network [OSTI]

month for sale from storage on the average) was slightly more than the cost of storage for the 7-month period on grain that did not require artificial drying for safe storage. When drying was necessary, the total cost slightly exceeded the average... price increase. However, the CCC locm-price support program tends to "iron-out" the seasonal increases in price on which returns to storage depend in a "free" market operation. With the present price support program, most producers are interested...

Moore, Clarence A.

1958-01-01T23:59:59.000Z

186

Emergy analysis of grain production systems on large-scale farms in the North China Plain based on LCA  

Science Journals Connector (OSTI)

Abstract Traditionally, primary grain production systems in China have been on a small scale and are associated with high costs and low labor productivity. Therefore, the substitution of small-scale farming with large-scale farming has been discussed in recent years. The North China Plain (NCP) is one of the primary grain production areas in China, and the winter wheat–summer maize double-cropping system dominates the region. Emergy evaluation based on life cycle assessment (LCA) was introduced in a farm case study to explore the ecological and economic effects of the wheat–maize double-cropping system on large-scale grain production compared with small-scale production. The results indicated that the emergy efficiency of maize production on the large-scale farm was 67.4–88.5% higher than that of common maize production systems, and the emergy efficiency of wheat production in the same farm decreased by 23.5–43.0% compared to other wheat production systems. The emergy sustainability index (ESI) of the double-cropping system was 64.0–84.5% lower than that reported by household farms. This is caused by large-scale farming requiring enormous emergy inputs from irrigation, fertilizers, and labor at the pre-sowing and growth stages of wheat production. Nevertheless, the scenario analysis results showed that the emergy efficiency and ESI of wheat production could be improved by 14.7–59.1% and 18.2–123.3%, respectively, using appropriate water, nutrient, and agronomic management measures. We found that the emergy efficiency of wheat production in this large-scale farm was 41.5% higher than in household farms in the same area if comprehensive improvement measures were applied. In conclusion, the ESI value of the double-cropping system in the NCP needs to be modified to increase the emergy efficiency of large-scale grain production farms. If this is accomplished, the large-scale farming pattern may be applicable for grain production in the NCP.

Xiaolong Wang; Yuanquan Chen; Peng Sui; Wangsheng Gao; Feng Qin; Jiansheng Zhang; Xia Wu

2014-01-01T23:59:59.000Z

187

The Mg isotope composition of presolar silicate grains from red giant stars  

Science Journals Connector (OSTI)

Abstract We report O and Mg isotope compositions of presolar silicate grains which likely formed around asymptotic giant branch stars. Our grains represent the most abundant Mg-rich presolar grain group and their Mg isotope composition provides thus far missing information about the contribution of isotopically anomalous presolar dust to the Mg isotope inventory of the early Solar System. Presolar silicate grains were identified in situ, using the NanoSIMS, in the matrix of the ungrouped carbonaceous chondrite Acfer 094. O isotope compositions suggest that the presolar grains of the present study formed in the stellar winds of low mass (M ? ?2.2 × Msolar) red giant or asymptotic giant branch stars of close-to-solar metallicity and thus belong to the most abundant presolar silicate grain group. In order to minimise matrix contributions during spatially poorly resolved Mg isotope analyses (spatial resolution comparable to average grain size), meteorite matrix in the presolar grains’ vicinity was removed using a focussed Ga ion beam. To monitor accuracy, we prepared and analysed O-isotopically regular (Solar System) matrix grains the same way as the presolar grains. The 25Mg/24Mg ratios of all seven successfully analysed presolar silicate grains are identical to that of the Solar System at the precision of our measurements. The 26Mg/24Mg ratios of five grains are also solar but two grains have significant positive anomalies in 26Mg/24Mg. On average, however, 25Mg/24Mg and 26Mg/24Mg ratios are higher than solar by a few %. All grain compositions are consistent with Galactic chemical evolution and, possibly, isotope fractionation caused by interstellar or Solar System processing (sputtering and/or recondensation). The grain with the strongest enrichment in 26Mg relative to 25Mg (?25Mg = 34 ± 25‰, ?26Mg = 127 ± 25‰; where ?xMg = 1000 × [(xMg/24Mg)grain/(xMg/24Mg)meteorite matrix) ? 1] with x = 25 or 26; the reported uncertainty corresponds to 1 ?), probably incorporated 26Al during grain condensation. Our and previously reported Mg isotope data on presolar oxide and silicate grains indicate that the isotopically anomalous O-rich dust component of the Solar System’s parent molecular cloud was heterogeneous with respect to Mg isotope compositions and probably had a higher 26Mg/24Mg ratio on average than that of the present-day Solar System.

János Kodolányi; Peter Hoppe; Elmar Gröner; Christoph Pauly; Frank Mücklich

2014-01-01T23:59:59.000Z

188

Master of Science in Applied Educational Psychology  

E-Print Network [OSTI]

Master of Science in Applied Educational Psychology Distance Education Program A 36-credit hour distance education Selected Courses in Applied Educational Psychology Courses offered via distance education for the Applied Educational Psychology program are taught by faculty with esteemed national

Tennessee, University of

189

Assistant Professor Position In Applied Social Psychology  

E-Print Network [OSTI]

Assistant Professor Position In Applied Social Psychology Applied Social Psychology Program Department of Psychology Colorado State University Job Description and Qualifications The Department of Psychology at Colorado State University invites applications for one tenure- track position in Applied Social

190

Applying Quantum Principles to Psychology  

E-Print Network [OSTI]

This article starts out with a detailed example illustrating the utility of applying quantum probability to psychology. Then it describes several alternative mathematical methods for mapping fundamental quantum concepts (such as state preparation, measurement, state evolution) to fundamental psychological concepts (such as stimulus, response, information processing). For state preparation, we consider both pure states and densities with mixtures. For measurement, we consider projective measurements and positive operator valued measurements. The advantages and disadvantages of each method with respect to applications in psychology are discussed.

Jerome R Busemeyer; Zheng Wang; Andrei Khrennikov; Irina Basieva

2014-05-25T23:59:59.000Z

191

Environmental Site Characterization and Remediation at Former Grain Storage  

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

Applied Geosciences and Environmental Management (AGEM) Program Applied Geosciences and Environmental Management (AGEM) Program The EVS Applied Geosciences and Environmental Management (AGEM) program improves methods for characterizing and restoring environmental sites contaminated with carbon tetrachloride. For decades, the EVS Applied Geosciences and Environmental Management program has been improving methods for characterizing and restoring environmental sites contaminated with carbon tetrachloride. A key to our streamlined site characterization process is extensive use of cone penetrometer technology, with customized sampling and drilling tools, to minimize intrusiveness and the amount of hazardous waste generated. We have also improved analytical methods so that we can rapidly detect lower concentrations of contaminants and have developed methods for integrating

192

Weatherization and Intergovernmental Program: Apply for Weatherization  

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

Apply Apply for Weatherization Assistance to someone by E-mail Share Weatherization and Intergovernmental Program: Apply for Weatherization Assistance on Facebook Tweet about Weatherization and Intergovernmental Program: Apply for Weatherization Assistance on Twitter Bookmark Weatherization and Intergovernmental Program: Apply for Weatherization Assistance on Google Bookmark Weatherization and Intergovernmental Program: Apply for Weatherization Assistance on Delicious Rank Weatherization and Intergovernmental Program: Apply for Weatherization Assistance on Digg Find More places to share Weatherization and Intergovernmental Program: Apply for Weatherization Assistance on AddThis.com... Plans, Implementation, & Results Weatherization Assistance Program Weatherization Services

193

Grain and Grain-Boundary Critical Currents in Coated Conductors with Non-Correlating YBa2Cu3O7 and Substrate Grain-Boundary Networks  

SciTech Connect (OSTI)

The superconducting grain-boundary (GB) network of coated conductors (CCs) is usually assumed to be a replica of the substrate network. In this letter, we analyze IBAD and RABITS CCs, where such replica either do or do not exist. We have analyzed the effect of GB overgrowth on the critical currents by quantifying the average superconducting grain size and determining the intragrain and grain-boundary critical current densities, J{sub c}{sup G} and J{sub c}{sup GB}. We have employed a recently developed inductive methodology enabling the simultaneous determination of these three parameters. We show that the percolative J{sub c}{sup GB} may be reduced by 50% if the GB networks do not correlate, while J{sub c}{sup G} and the grain pinning properties appear unaffected.

Palau, A. [ICMAB, Barcelona, Spain; Puig, T. [ICMAB, Barcelona, Spain; Obradors, X. [ICMAB, Barcelona, Spain; Feenstra, Roeland [ORNL; Gapud, Albert Agcaoili [ORNL; Specht, Eliot D [ORNL; Feldmann, D. M. [University of Wisconsin, Madison; Holesinger, T. G. [Los Alamos National Laboratory (LANL)

2006-01-01T23:59:59.000Z

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 2100°C) on the strength and grain size of unirradiated coated particles. This work was further expanded to include possible relationships between the grain size and strength values. The comparative results of two strength measurement techniques and grain size measured by the Lineal intercept method are included. Preliminary grain boundary characterization results determined by electron backscatter diffraction (EBSD) are included. These results are also important for future fission product transport studies, as grain boundary diffusion is identified as a possible mechanism by which 110mAg, one of the fission activation products, might be released through intact SiC layers. Temperature is a parameter known to influence the grain size of SiC and therefore it is important to investigate the effect of high temperature annealing on the SiC grain size. Recommendations and future work will also be briefly discussed.

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

2012-10-01T23:59:59.000Z

195

Applied Materials | Open Energy Information  

Open Energy Info (EERE)

Materials Materials Jump to: navigation, search Name Applied Materials Address 3050 Bowers Avenue Place Santa Clara, California Zip 95054 Sector Solar Stock Symbol AMAT Website http://www.appliedmaterials.co Coordinates 37.3775749°, -121.9794416° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.3775749,"lon":-121.9794416,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

196

In vitro activity of sorghum non-tannin polyphenols against grain molding and weathering fungi  

E-Print Network [OSTI]

-maturity attack by fungi is termed grain molding. Post-matur1ty infestat1on 1s referred to as grain weather1ng. Weather- ing has a number of negat1ve consequences for the grain (Glueck et al 1978). Yield is diminished, handling and storage propert1es are al... storage can be a most serious problem. In parts of Texas, grain can be harvested in summer 1f 1t is planted 1n late February or early March. However, if the plant1ng is delayed or 1f there is a limited amount of soil moisture, maturity can be delayed...

Leungchaikul, Patcharin

2012-06-07T23:59:59.000Z

197

Cooperator: Bryan Vail Tillage: No-till Soil type: Hollister silt loam Management: Grain only  

E-Print Network [OSTI]

Fungicide: 10.5 oz/ac Quilt Xcel + 1% v/v COC on 19 April 2013 Grain Yield Freeze inj. Test Weight Source

Balasundaram, Balabhaskar "Baski"

198

Trains, Grains, and Grizzly Bears: Reducing Wildlife Mortality on Railway Tracks in Banff National Park  

E-Print Network [OSTI]

will need to be taken as defective cars are repaired and asbottom of grain cars that are defective, worn or not closed

Pissot, Jim

2007-01-01T23:59:59.000Z

199

Direct Free Energy Minimization Methods: Application to Grain Boundaries [and Discussion  

Science Journals Connector (OSTI)

16 November 1992 research-article Direct Free Energy Minimization Methods: Application to Grain Boundaries [and Discussion] A. P. Sutton P. A. Mulheran A. M. Stoneham A critical...

1992-01-01T23:59:59.000Z

200

Effect of Grain Size on Uranium(VI) Surface Complexation Kinetics...  

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

the contribution of variable grain sizes to uranium adsorptiondesorption in a sediment collected from the US DOE Hanford site. The sediment was wet-sieved into four size...

Note: This page contains sample records for the topic "grain cxs applied" 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

SPOILAGE OF WET DISTILLERS GRAINS PLUS SOLUBLES WHEN STORED IN A BUNKER.  

E-Print Network [OSTI]

??Five studies evaluated the impact of spoilage of wet distillers grains plus solubles (WDGS) on nutrient composition, nutrient losses, and cattle performance. Exp. 1 and… (more)

Harding, Jana L

2012-01-01T23:59:59.000Z

202

EFFECT OF GRAIN SIZE ON THE ACOUSTIC EMISSION GENERATED DURING PLASTIC DEFORMATION OF ALUMINUM  

E-Print Network [OSTI]

PLASTIC DEFORMATION OF ALUMINUM LAWRENCE BERKELEY LABORATORYDURING PLASTIC DEFORMATION OF ALUMINUM J. Baram Materialsof polycrystalline aluminum, of different grain sizes and at

Baram, J.

2013-01-01T23:59:59.000Z

203

Some rockmagnetic parameters for natural goethite, pyrrhotite and fine-grained hematite.  

E-Print Network [OSTI]

??The increasing importance of sediments for paleomagnetic research prompted a study of rockmagnetic parameters of natural goethite, pyrrhotite and hematite. Grain-size dependent behaviour of such… (more)

Dekkers, M.J.

1988-01-01T23:59:59.000Z

204

Categorical Exclusion Determinations: B5.1 | Department of Energy  

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

17, 2010 17, 2010 CX-004835: Categorical Exclusion Determination Electric Vehicle Charging Stations City of Mill Creek CX(s) Applied: B5.1 Date: 12/17/2010 Location(s): Mill Creek, Washington Office(s): Energy Efficiency and Renewable Energy, Golden Field Office December 17, 2010 CX-004791: Categorical Exclusion Determination Hydroelectric Facility Improvement Project? Automated Intake Cleaning Equipment and Materials Management CX(s) Applied: B5.1 Date: 12/17/2010 Location(s): North Little Rock, Arkansas Office(s): Energy Efficiency and Renewable Energy, Golden Field Office December 17, 2010 CX-004756: Categorical Exclusion Determination Arkansas Renewable Technology Rebate Fund - Holden-Connor Seed and Grain CX(s) Applied: A1, B5.1 Date: 12/17/2010 Location(s): Newport, Arkansas

205

Band-Gap Engineering of Carbon Nanotubes with Grain Boundaries  

SciTech Connect (OSTI)

Structure and electronic properties of carbon nanotubes (CNTs) with grain boundaries (GBs) are investigated using density-functional calculations, where the GBs parallel and perpendicular to the tube axis are considered. Simulation results show that the GBs have a great effect on the electronic properties of the CNTs. For the GBs along the tube axis, the CNTs are narrow or zero band gap (<0.16 eV) materials, independent of the misorientation angle and diameter. For the GBs perpendicular to the tube axis, localized electronic states appear within the GBs regions, leading to a larger band gap of up to 0.6 eV. It is convenient to transport and localize the electrons and holes by engineering the GBs. These findings are of great significance for developing carbon-based nanomaterials and electronic devices.

Wang, Zhiguo; Zhou, Yungang; Zhang, Yanwen; Gao, Fei

2012-01-26T23:59:59.000Z

206

Band-Gap Engineering of Carbon Nanotubes with Grain Boundaries  

SciTech Connect (OSTI)

Structure and electronic properties of carbon nanotubes (CNTs) with grain boundaries (GBs) are investigated using density-functional calculations, where the GBs parallel and perpendicular to the tube axis are considered. Simulation results show that the GBs have a great effect on the electronic properties of the CNTs. For the GBs along the tube axis, the CNTs are narrow or zero band gap (<0.16 eV) materials, independent of the misoritentaion angle and diameter. For the GBs perpendicular to the tube axis, localized electronic states appear within the GBs regions, leading to a larger band gap of up to 0.6 eV. It is convenient to transport and localize the electrons and holes by engineering the GBs. These findings are of great significance for developing carbon-based nanomaterials and electronic devices.

Wang, Zhiguo [Department of Applied Physics, University of Electronic Science and Technology of China; Zhou, Yungang [Department of Applied Physics, University of Electronic Science and Technology of China; Zhang, Yanwen [ORNL; Gao, Fei [ORNL

2011-01-01T23:59:59.000Z

207

AB INITIO STUDY OF GRAIN BOUNDARY PROPERTIES OF TUNGSTEN ALLOYS  

SciTech Connect (OSTI)

Density functional theory was employed to investigate the grain boundary (GB) property of W-TM alloys (TM: fifth and sixth row transition metals). GB strengthening was found for Hf, Ta, Nb, Ru, Re, Os and Ir for 27{l_brace}525{r_brace} and to a lesser degree for 11{l_brace}323{r_brace}. Lower valence solutes strengthen the GB at certain substitutional sites, while higher valence elements enforce it at other positions. For 3{l_brace}112{r_brace}, the alloys exhibit reduced cleavage energies. Hence, allowing with TMs increases the GB cohesion more effectively for large-angle GBs whose cleavage energy is, in general, inherently lower than the low-angle ones. Electron density analysis elucidates the mechanism of charge addition or depletion of the GB bonding region upon TM substitution at various positions leading to stronger or weaker intergranular cohesion, respectively.

Setyawan, Wahyu; Kurtz, Richard J.

2012-04-17T23:59:59.000Z

208

Coarse grained NN potential with Chiral Two Pion Exchange  

E-Print Network [OSTI]

We determine the chiral constants of the Nucleon-Nucleon Two Pion Exchange potential deduced from Chiral Perturbation Theory. By using a coarse grained representation of the short distance interactions with 30 parameters, the Partial Wave Analysis fit gives chi^2/dof = 1.1 to a mutually consistent set of 6713 data previously built from all published proton-proton and neutron proton scattering data from 1950 till 2013 with LAB energy below 350 MeV. We obtain (c1, c3, c4)=(-0.41+- 1.08,-4.66+- 0.60, 4.31+- 0.17)/GeV with an almost 100% anti-correlation between c1 and c3. We also provide the errors in the short distance parameters and propagate them to the deuteron properties and low partial waves phase shifts.

R. Navarro Perez; J. E. Amaro; E. Ruiz Arriola

2014-02-10T23:59:59.000Z

209

The growth mechanism of grain boundary carbide in Alloy 690  

SciTech Connect (OSTI)

The growth mechanism of grain boundary M{sub 23}C{sub 6} carbides in nickel base Alloy 690 after aging at 715 °C was investigated by high resolution transmission electron microscopy. The grain boundary carbides have coherent orientation relationship with only one side of the matrix. The incoherent phase interface between M{sub 23}C{sub 6} and matrix was curved, and did not lie on any specific crystal plane. The M{sub 23}C{sub 6} carbide transforms from the matrix phase directly at the incoherent interface. The flat coherent phase interface generally lies on low index crystal planes, such as (011) and (111) planes. The M{sub 23}C{sub 6} carbide transforms from a transition phase found at curved coherent phase interface. The transition phase has a complex hexagonal crystal structure, and has coherent orientation relationship with matrix and M{sub 23}C{sub 6}: (111){sub matrix}//(0001){sub transition}//(111){sub carbide}, <112{sup ¯}>{sub matrix}//<21{sup ¯}10>{sub transition}//<112{sup ¯}>{sub carbide}. The crystal lattice constants of transition phase are c{sub transition}=?(3)×a{sub matrix} and a{sub transition}=?(6)/2×a{sub matrix}. Based on the experimental results, the growth mechanism of M{sub 23}C{sub 6} and the formation mechanism of transition phase are discussed. - Highlights: • A transition phase was observed at the coherent interfaces of M{sub 23}C{sub 6} and matrix. • The transition phase has hexagonal structure, and is coherent with matrix and M{sub 23}C{sub 6}. • The M{sub 23}C{sub 6} transforms from the matrix directly at the incoherent phase interface.

Li, Hui, E-mail: huili@shu.edu.cn [Key Laboratory for Microstructures, Shanghai University, Shanghai 200444 (China); Institute of Materials, Shanghai University, Shanghai 200072 (China); Xia, Shuang; Zhou, Bangxin [Institute of Materials, Shanghai University, Shanghai 200072 (China); Peng, Jianchao [Key Laboratory for Microstructures, Shanghai University, Shanghai 200444 (China)

2013-07-15T23:59:59.000Z

210

Control of Y2BaCuO5 particle formation in bulk, single grain Y–Ba–Cu–O  

Science Journals Connector (OSTI)

The trapped field of undoped, bulk, single grain Y–Ba–Cu–O (YBCO) fabricated by top seeded melt growth (TSMG) has been measured to investigate the field generating potential of this material. Bulk samples were prepared from precursor powders that incorporated Y2O3 of particle size 20–50 nm, rather than Y2BaCuO5 (Y-211), which is used more commonly, in order to introduce nano-Y-211 inclusions in the superconducting YBa2Cu3Oy (Y-123) matrix. Relatively small bulk samples of diameter 20 mm processed from this precursor are observed to trap a peak magnetic flux density of nearly 0.8 T at 77 K. This is the first time that such a trapped field of this magnitude has been observed in undoped YBCO (i.e. in the absence of chemical additions). The increase in trapped field is accompanied by an associated enhancement in Jc by up to a factor of five over the applied magnetic field up to 4 T at 77 K compared to standard single grain YBCO fabricated from precursor powders that contain the Y-211 phase.

W K Yeoh; S K Pathak; Y-H Shi; A R Dennis; D A Cardwell; N Hari Babu; K Iida; M Strasik

2009-01-01T23:59:59.000Z

211

Effect of lift force on the aerodynamics of dust grains in the protoplanetary disk  

E-Print Network [OSTI]

We newly introduce lift force into the aerodynamics of dust grains in the protoplanetary disk. Although many authors have so far investigated the effects of the drag force, gravitational force and electric force on the dust grains, the lift force has never been considered as a force exerted on the dust grains in the gas disk. If the grains are spinning and moving in the fluid, then the lift force is exerted on them. We show in this paper that the dust grains can be continuously spinning due to the frequent collisions so that the lift force continues to be exerted on them, which is valid in a certain parameter space where the grain size is larger than ~ 1 m and where the distance from the central star is larger than 1 AU for the minimum mass solar nebula. In addition, we estimate the effects of the force on the grain motion and obtain the result that the mean relative velocity between the grains due to the lift force is comparable to the gas velocity in the Kepler rotational frame when the Stokes number and li...

Yamaguchi, Masaki S

2014-01-01T23:59:59.000Z

212

Spatial grain size sorting in eolian ripples and estimation of wind conditions on planetary surfaces  

E-Print Network [OSTI]

measurements from White Sands National Monument, New Mexico, show that such coarse-grained ripples form by the different transport modes of coarse- and fine-grain fractions. On the basis of our field study, and simple) Thermal Emission Spectrom- eter (TES), which was interpreted to reflect iron precipita- tion in surficial

Grotzinger, John P.

213

An Analysis of Grain Production Decline During the Early Transition in Ukraine: Bayesian Inference  

E-Print Network [OSTI]

An Analysis of Grain Production Decline During the Early Transition in Ukraine: Bayesian Inference in production. Identifying the reasons for the decline in agricultural output in countries like Ukraine of the decline in grain production in early transition Ukraine. Much of the literature devoted to the analyses

214

Magnetically affected texture and microstructure evolution during grain growth in Zirconium  

E-Print Network [OSTI]

Magnetically affected texture and microstructure evolution during grain growth in Zirconium Dmitri.bozzolo@mines-paristech.fr Keywords: Grain growth, Magnetic annealing, Zirconium, Magnetic anisotropy. Abstract. The effect of a magnetic field on texture and microstructure development in cold rolled (80%) commercially pure zirconium

Boyer, Edmond

215

Recombination Efficiency of Molecular Hydrogen on Interstellar Grains-II A Numerical Study  

E-Print Network [OSTI]

A knowledge of the recombination time on the grain surfaces has been a major obstacle in deciding the production rate of molecular hydrogen and other molecules in the interstellar medium. We present a numerical study to compute this time for molecular hydrogen for various cloud and grain parameters. We also find the time dependence, particularly when a grain is freshly injected into the system. Apart from the fact that the recombination times seem to be functions of the grain parameters such as the activation barrier energy, temperature etc, our result also shows the dependence on the number of sites in the grain $S$ and the effective accretion rate per site $a_s$ of atomic hydrogen. Simply put, the average time that a pair of atomic hydrogens will take to produce one molecular hydrogen depends on how heavily the grain is already populated by atomic and molecular hydrogens and how fast the hopping and desorption times are. We show that if we write the average recombination time as $T_r \\sim S^\\alpha/A_H$, where, $A_H$ is the hopping rate, then $\\alpha$ could be much greater than 1 for all astrophysically relevant accretion rates. Thus the average formation rate of $H_2$ is also dependent on the grain parameters, temperature and the accretion rate. We believe that our result will affect the overall rate of the formation of complex molecules such as methanol which require successive hydrogenation on the grain surfaces in the interstellar medium.

Sandip Kumar Chakrabarti; Ankan Das; Kinsuk Acharyya; Sonali Chakrabarti

2008-06-28T23:59:59.000Z

216

Grain-boundary engineering markedly reduces susceptibility to intergranular hydrogen embrittlement in metallic materials  

E-Print Network [OSTI]

Grain-boundary engineering markedly reduces susceptibility to intergranular hydrogen embrittlement to intergranular embrittlement in the presence of hydrogen is examined. Using thermomechanical processing-induced intergranular embrittlement to the higher fraction of special grain boundaries, where the degree of hydrogen

Ritchie, Robert

217

Modeling the interface area aspect ratio of carbide grains in WCCo composites  

E-Print Network [OSTI]

Modeling the interface area aspect ratio of carbide grains in WC­Co composites Xiaokun Yuan a Keywords: Cemented carbide Electron backscattered diffraction Interface area aspect ratio Five parameter analysis The average interface area aspect ratios of carbide grains in WC­Co composites are measured from

Rohrer, Gregory S.

218

SIGNATURES OF THE s-PROCESS IN PRESOLAR SILICON CARBIDE GRAINS: BARIUM THROUGH HAFNIUM  

E-Print Network [OSTI]

SIGNATURES OF THE s-PROCESS IN PRESOLAR SILICON CARBIDE GRAINS: BARIUM THROUGH HAFNIUM Qing-Zhu Yin have been determined in a silicon carbide­rich sample of the Murchison carbonaceous chondrite, using carbide, silicon nitride, and various refractory oxides (e.g., Zinner 1998). Grains of silicon carbide (Si

Lee, Cin-Ty Aeolus

219

Accepted Manuscript Abundances of presolar silicon carbide grains in primitive meteorites deter-  

E-Print Network [OSTI]

Accepted Manuscript Abundances of presolar silicon carbide grains in primitive meteorites deter.R., Alexander, C.M., Orthous-Daunay, o-R., Franchi, I.A., Hoppe, P., Abundances of presolar silicon carbide of presolar silicon carbide grains in primitive meteorites determined by NanoSIMS Jemma Davidsona,1,* , Henner

Nittler, Larry R.

220

Simulation of grain-boundary diffusion creep: analysis of some new numerical techniques  

Science Journals Connector (OSTI)

...If two of the grain boundaries are parallel, the position midway between the two parallel bound- aries and lying on the third...grain boundaries (or, if they are par- allel, at the point midway between the points on each new boundary corresponding to the...

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

The equilibrium crystal shape of strontium titanate and its relationship to the grain boundary plane distribution  

E-Print Network [OSTI]

1 The equilibrium crystal shape of strontium titanate and its relationship to the grain crystal shape (ECS) of a model system, strontium titanate, is compared with the grain boundary plane distribution (GBPD) as a function of temperature. Strontium titanate has a pronounced surface energy anisotropy

Rohrer, Gregory S.

222

Murchison presolar carbon grains of different density fractions: A Raman spectroscopic perspective  

E-Print Network [OSTI]

for inorganic sp2 -bonded carbon. Based on their D/G intensity ratios, those grains were grouped.1), "glassy carbon" (D/G > 1.1), and "unusual sp2 -bonded graphitic car- bon" (with extremely intense 2ndMurchison presolar carbon grains of different density fractions: A Raman spectroscopic perspective

223

Quantifying the relative importance of flow regulation and grain size regulation of suspended sediment transport and  

E-Print Network [OSTI]

sediment transport and tracking changes in grain size of bed sediment David M. Rubin U.S. Geological Survey changes in sediment transport, it is essential to know whether transport is regulated mainly by changes in flow or by changes in grain size of sediment on the bed. In flows where changes in suspended sediment

224

Result Demonstration Report Pigweed Control in Grain Sorghum Using Peak. 1996 to 1999  

E-Print Network [OSTI]

74 78 Peak + Methylated Oil 0.75 oz + 1 pt 78 88 93 1) WAT = Weeks after treatment application. #12Result Demonstration Report Pigweed Control in Grain Sorghum Using Peak. 1996 to 1999 Brent Bean Summary Studies were conducted from 1996 to 1999 to evaluate pigweed control in grain sorghum using Peak

Mukhtar, Saqib

225

Nanoparticle-induced twist-grain boundary phase Maja Trcek,1  

E-Print Network [OSTI]

Nanoparticle-induced twist-grain boundary phase Maja Trcek,1 George Cordoyiannis,1, 2, Vassilios optical microscopy it is demonstrated that surface- functionalized spherical CdSSe nanoparticles induce a twist-grain boundary phase when dispersed in a chiral liquid crystal. These nanoparticles can

226

Comparing calculated and measured grain boundary energies in nickel Gregory S. Rohrer a  

E-Print Network [OSTI]

Comparing calculated and measured grain boundary energies in nickel Gregory S. Rohrer a , Elizabeth measured and computed grain boundary energies. While the overall correlation between experimental Laboratories (SNL) [23] have utilized new, high-throughput methods to measure energy for large ensembles

Rohrer, Gregory S.

227

On the relationship between grain boundary sliding and intragranular slip during superplastic deformation  

SciTech Connect (OSTI)

This paper examines grain boundary sliding under the conditions of plastic strain incompatibility that is the most frequent case in polycrystalline materials. Two components of grain boundary sliding: dependent and independent on intragranular slip are distinguished. Theoretical estimate of a ratio between slip induced sliding and intragranular slip is obtained. It is concluded that slip and sliding are rather independent than interrelated processes.

Sheikh-Ali, A.D.; Szpunar, J.A.; Garmestani, H.

2000-07-01T23:59:59.000Z

228

2006. The number of grains will be limited (~100 interstellar and ~1000 cometary  

E-Print Network [OSTI]

, those grains that are true interstellar dust grains among IDPs that may have been processed in the solar Darwin, the origin of species was "the mystery of mysteries" (1). If so, then the Neotropical (Central and South American) forests, which harbor more plant species than the tropics of Asia and Africa com- bined

Binford, Michael W.

229

Mapping solute excesses and curvature of grain boundaries | ornl.gov  

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

Materials Under Extreme Materials Under Extreme Mapping solute excesses and curvature of grain boundaries November 21, 2013 2-D Cr and W Gibbsian interfacial excess maps and variations of the curvature over the grain boundary. The TiO++ map indicates the positions of the nanoclusters which correspond to the black regions in the curvature map. A novel characterization method has been developed that enables complete characteriza-tions of grain boundaries by atom probe tomography (APT) in terms of the orientation relationship of the adjacent grains, local variations of the habit plane, surface curvature, and the solute excesses over the surface of a grain boundary. The achieved 1 nm x 1 nm spatial resolution leads to an understanding of the mechanisms that lend certain materials, such as nanostruc-tured

230

2D and 3D simulations of damage in 5-grain copper gas gun samples  

SciTech Connect (OSTI)

2D and 3D Hydrocode simulations were done of a gas gun damage experiment involving a 5 grain sample with a polycrystalline flyer with a velocity of about 140 m/s. The simulations were done with the Flag hydrocode and involved explicit meshing of the 5 grains with a single crystal plasticity model and a pressure based damage model. The calculated fields were compared with two cross sections from the recovered sample. The sample exhibited grain boundary cracks at high angle and tilt grain boundaries in the sample but not at a sigma 3 twin boundary. However, the calculation showed large gradients in stress and strain at only the twin boundary, contrary to expectation. This indicates that the twin boundary is quite strong to resist the predicted high gradients and that the calculation needs the addition of a grain boundary fracture mode. The 2D and 3D simulations were compared.

Tonks, Davis L [Los Alamos National Laboratory; Cerreta, Ellen K [Los Alamos National Laboratory; Dennis - Koller, Darcie [Los Alamos National Laboratory; Escobedo - Diaz, Juan P [Los Alamos National Laboratory; Trujillo, Carl P [Los Alamos National Laboratory; Luo, Shengian [Los Alamos National Laboratory; Bingert, John F [Los Alamos National Laboratory

2010-12-16T23:59:59.000Z

231

How to Apply for the ENERGY STAR®  

Broader source: Energy.gov [DOE]

Join us to learn about applying for ENERGY STAR Certification in Portfolio Manager. Understand the value of the ENERGY STAR certification, see the step-by-step process of applying, and gain tips to...

232

Roadmap: Technical and Applied Studies Computer Technology Applied Computer Security and Forensics Technology  

E-Print Network [OSTI]

Roadmap: Technical and Applied Studies ­ Computer Technology Applied Computer Security-division credit hours #12;Roadmap: Technical and Applied Studies ­ Computer Technology Applied Computer Security and Forensics Technology ­ Bachelor of Technical and Applied Studies [RE-BTAS-TAS-CTAC] Regional College Catalog

Sheridan, Scott

233

Master of Science in Applied Educational Psychology  

E-Print Network [OSTI]

Master of Science in Applied Educational Psychology Distance Education Program A 36-credit hour settings. Selected Courses in Applied Educational Psychology Courses offered via distance education for the Applied Educational Psychology program are taught by faculty with esteemed national and international

Tennessee, University of

234

SYLLABUS--GEOGRAPHY (GEOG)-455 APPLIED CLIMATOLOGY  

E-Print Network [OSTI]

SYLLABUS--GEOGRAPHY (GEOG)-455 APPLIED CLIMATOLOGY Spring 2006 Time: T-R 12:30-1:45 p.m. (BOL B95-455-001-lec@uwm.edu Textbooks: Thompson-Perry, Applied Climatology: principles and practice, (1997, graduate students will prepare a 10 page (2500 word minimum) paper on a project using applied climatology

Saldin, Dilano

235

Department of Applied Physics Introductory Handbook  

E-Print Network [OSTI]

Department of Applied Physics Introductory Handbook Version 2009-05-29 #12;2 Phone: +46 (0) 8 5537 8102 www.aphys.kth.se Visiting address Roslagstullsbacken 21 Delivery address KTH Applied Physics AlbaNova University Center Roslagsvägen 30B 114 19 Stockholm Postal address KTH Applied Physics AlbaNova University

Haviland, David

236

Secondary recrystallization in non-sag W filament wires -- On the possible role of relative grain boundary character distribution  

SciTech Connect (OSTI)

Non-Sag tungsten (W) wire is indispensable for the lighting industry. For the necessary creep resistance, large elongated grains are considered as the desired microstructure. These large grains are obtained by primary and secondary recrystallization. In the present study an effort has been made to characterize and to understand the origin of such large elongated grains. In secondary recrystallization, often called abnormal grain growth, a few of the grains grow massive. The mechanisms of normal and abnormal grain growth are essentially the same, involving high angle boundary migration and driven by the reduction of surface energy. The abnormal grain growth can be visualized as a growth advantage for a few of the grains or growth disadvantage for the majority. Such an advantage/disadvantage may be caused by (1) differences in grain size and/or (2) differences in grain boundary character distribution (GBCD). In other words, a grain may grow massive if it has large size and/or possibilities of more favorable (i.e., of higher mobility) grain boundaries with the matrix grains.

Samajdar, I. [IIT Bombay (India). Dept. of Metallurgical Engineering and Materials Science] [IIT Bombay (India). Dept. of Metallurgical Engineering and Materials Science; Verlinden, B. [Katholieke Univ. Leuven, Heverlee (Belgium)] [Katholieke Univ. Leuven, Heverlee (Belgium); Watte, P. [Philips Lighting NV, Turnhout (Belgium)] [Philips Lighting NV, Turnhout (Belgium); Mertens, F. [Philips Lighting, Maarheeze (Netherlands)] [Philips Lighting, Maarheeze (Netherlands)

1999-05-07T23:59:59.000Z

237

Synergism between creep ductility and grain boundary bubbles  

Science Journals Connector (OSTI)

The marked decrease in creep ductility that can be caused by internal pressure in grain boundary pores is modelled to treat the interaction between boundary diffusion, power law creep, and bubble pressure. The application to 2.25 Cr?1 Mo steel in high pressure hydrogen is treated numerically using a computer program since here the internal methane pressure in pores is known, and kinetic data exists. Reasonable agreement is obtained between the predictions and the observed loss in ductility in the presence of 21 \\{MPa\\} of hydrogen. With methane pressurized bubbles, the model suggests intergranular fracture is powerlaw creep limited at essentially all temperatures and stresses. Thus one predicts the hydrogen attack resistance in service to be strongly influenced by the creep strength of the alloy. In the absence of hydrogen (methane), intergranular fracture should be limited by diffusion creep and thus much more sensitive to pore density and boundary diffusion rate than strength. Possible application to recent high temperature steamline failures in welded pipe and to helium effects in nuclear reactor materials are also indicated.

P. Shewmon

1987-01-01T23:59:59.000Z

238

Thermodynamics of Protein Folding from Coarse-Grained Models' Perspectives  

E-Print Network [OSTI]

Folding and aggregation of proteins, the interaction between proteins and membranes, as well as the adsorption of organic soft matter to inorganic solid substrates belong to the most interesting challenges in understanding structure and function of complex macromolecules. This is reasoned by the interdisciplinary character of the associated questions ranging from the molecular origin of the loss of biological functionality as, for example, in Alzheimer's disease to the development of organic circuits for biosensory applications. In this lecture, we focus on the analysis of mesoscopic models for protein folding, aggregation, and hybrid systems of soft and solid condensed matter. The simplicity of the coarse-grained models allows for a more universal description of the notoriously difficult problem of protein folding. In this approach, classifications of structure formation processes with respect to the conformational pseudophases are possible. This is similar in aggregation and adsorption processes, where the individual folding propensity is influenced by external forces. The main problem in studies of conformational transitions is that the sequences of amino acids proteins are built up of are necessarily of finite length and, therefore, a thermodynamic limit does not exist. Thus, structural transitions are not phase transitions in the strict thermodynamic sense and the analysis of pseudouniversal aspects is intricate, as apparently small-system effects accompany all conformational transitions and cannot be neglected.

Michael Bachmann; Wolfhard Janke

2007-10-25T23:59:59.000Z

239

Structural Dependence of Grain Boundary Resistance in Copper Nanowires  

SciTech Connect (OSTI)

The current choice of the interconnect metal in integrated circuits is copper due to its higher electrical conductivity and improved electromigration reliability in comparison with aluminum. However, with reducing feature sizes, the resistance of copper interconnects (lines) increases dramatically. Greater resistance will result in higher energy use, more heat generation, more failure due to electromigration, and slower switching speeds. To keep pace with the projected planar transistor density, the first challenge is to identify the dominant factors that contribute to the high interconnect resistance. Here we directly measure individual grain boundary (GB) resistances in copper nanowires with a one-to-one correspondence to the GB structure. The specific resistivities of particular GBs are measured using four-probe scanning tunneling microscopy (STM) to establish a direct link between GB structure and the resistance. High-angle random GBs contribute to a specific resistivity of about 25 10-12 cm2 for each boundary, while coincidence boundaries are significantly less-resistive than random boundaries. Thus, replacing random boundaries with coincidence ones would be a route to suppress the GB impact to the resistivity of polycrystalline conductors. Acknowledgement: The research was supported by the Division of Scientific User Facilities, U. S. Department of Energy.

Kim, Tae Hwan [ORNL; Zhang, Xiaoguang [ORNL; Nicholson, Don M [ORNL; Radhakrishnan, Bala [ORNL; Radhakrishnan, Balasubramaniam [ORNL; Evans III, Boyd Mccutchen [ORNL; Kulkarni, Nagraj S [ORNL; Kenik, Edward A [ORNL; Meyer III, Harry M [ORNL; Li, An-Ping [ORNL

2011-01-01T23:59:59.000Z

240

The relationship between grain weight and alpha-amylase in winter wheat: varietal comparison from UK field experiments  

Science Journals Connector (OSTI)

In recent years there has been considerable interest in grain size as an important yield component in cereals. In general, larger grain size is seen as a desirable trait, which potentially improves both yield ...

A. D. Farrell; P. S. Kettlewell

2009-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

The mineralogy and chemistry of fine-grained sediments, Morphou Bay, CyprusHydrology and Earth System Sciences, 6(5), 819831 (2002) EGS The mineralogy and chemistry of fine-grained sediments,  

E-Print Network [OSTI]

819 The mineralogy and chemistry of fine-grained sediments, Morphou Bay, CyprusHydrology and Earth System Sciences, 6(5), 819­831 (2002) © EGS The mineralogy and chemistry of fine-grained sediments of marine sediments at Morphou Bay, north-west Cyprus, are presented to characterise fine-grained sediment

Paris-Sud XI, Université de

242

EVOLUTION OF COATED GRAINS IN SPIRAL SHOCKS OF SELF-GRAVITATING PROTOPLANETARY DISKS  

SciTech Connect (OSTI)

We investigate the evolution of grains composed of an ice shell surrounding an olivine core as they pass through a spiral shock in a protoplanetary disk. We use published three-dimensional radiation-hydrodynamics simulations of massive self-gravitating protoplanetary disks to extract the thermodynamics of spiral shocks in the region between 10 and 20 AU from the central star. As the density wave passes, it heats the grains, causing them to lose their ice shell and resulting in a lowering of the grain opacity. In addition, since grains of different sizes will have slightly different temperatures, there will be a migration of ice from hotter grains to cooler ones. The rate of migration depends on the temperature of the background gas, so a grain distribution that is effectively stable for low temperatures can undergo an irreversible change in opacity if the gas is temporarily heated to above {approx}150 K. We find that the opacity can drop more and at a significantly faster rate throughout the spiral shocks relative to the prediction of the standard dust grain model adopted in hydrodynamical calculations of protoplanetary disks. This would lead to faster gas cooling within spiral arms. We discuss the implications of our results on the susceptibility of disks to fragment into sub-stellar objects at distances of a few tens of astronomical units.

Podolak, M. [Department of Geophysics and Planetary Science, Tel Aviv University, Tel Aviv 69978 (Israel); Mayer, L. [Institute for Theoretical Physics, University of Zurich, 8057 Zurich (Switzerland); Quinn, T. [Department of Astronomy, University of Washington, Seattle, WA 98195 (United States)

2011-06-10T23:59:59.000Z

243

The effect of grain size distribution on H$_2$ formation rate in the interstellar medium  

E-Print Network [OSTI]

The formation of molecular hydrogen in the interstellar medium takes place on the surfaces of dust grains. Hydrogen molecules play a role in gas-phase reactions that produce other molecules, some of which serve as coolants during gravitational collapse and star formation. Thus, the evaluation of the roduction rate of hydrogen molecules and its dependence on the physical conditions in the cloud are of great importance. Interstellar dust grains exhibit a broad size distribution in which the small grains capture most of the surface area. Recent studies have shown that the production efficiency strongly depends on the grain composition and temperature as well as on its size. In this paper we present a formula which provides the total production rate of H$_2$ per unit volume in the cloud, taking into account the grain composition and temperature as well as the grain size distribution. The formula agrees very well with the master equation results. It shows that for a physically relevant range of grain temperatures, the production rate of H$_2$ is significantly enhanced due to their broad size distribution.

Azi Lipshtat; Ofer Biham

2005-08-01T23:59:59.000Z

244

Linking Grain Boundary Structure and Composition to Intergranular Stress Corrosion Cracking of Austenitic Stainless Steels  

SciTech Connect (OSTI)

Grain boundary structure and composition is assessed in austenitic stainless steels along with its influence on intergranular stress corrosion cracking (IGSCC) in high-temperature water. Brief examples are presented illustrating effects of grain boundary character and segregation on behavior in specific light-water-reactor environments. Although grain boundary engineering can produce an increased fraction of special boundaries in austenitic stainless alloys, practical benefits depend on the boundary orientation distribution. It is critical to recognize that only coherent sigma 3s appear to be resistant to SCC and the behavior of other low sigma boundaries is uncertain. Grain boundary composition can have a dominant effect on IGSCC under certain conditions, but altered interfacial chemistry is not required for cracking. In high-potential oxidizing environments, IGSCC susceptibility is a direct function of the boundary Cr concentration. Non-equilibrium thermal segregation of Cr and Mo is often present in millannealed stainless steels and may influence cracking susceptibility. This initial grain boundary composition alters subsequent radiation-induced segregation and delays irradiation-assisted SCC susceptibility to higher doses. Other alloying elements and impurities in 300-series stainless steels have been seen to enrich grain boundaries, but few have any significant impact on IGSCC susceptibility. One exception is Si that strongly segregates during irradiation. recent results suggest that Si may accelerate crack propagation in both low- and high-potential water environments. Critical research is still needed to isolate individual grain boundary characteristics and quantitatively link to IGSCC.

Bruemmer, Stephen M.

2004-08-10T23:59:59.000Z

245

A Unified Monte Carlo Treatment of Gas-Grain Chemistry for Large Reaction Networks. II. A Multiphase Gas-surface-layered Bulk Model  

Science Journals Connector (OSTI)

The observed gas-phase molecular inventory of hot cores is believed to be significantly impacted by the products of chemistry in interstellar ices. In this study, we report the construction of a full macroscopic Monte Carlo model of both the gas-phase chemistry and the chemistry occurring in the icy mantles of interstellar grains. Our model treats icy grain mantles in a layer-by-layer manner, which incorporates laboratory data on ice desorption correctly. The ice treatment includes a distinction between a reactive ice surface and an inert bulk. The treatment also distinguishes between zeroth- and first-order desorption, and includes the entrapment of volatile species in more refractory ice mantles. We apply the model to the investigation of the chemistry in hot cores, in which a thick ice mantle built up during the previous cold phase of protostellar evolution undergoes surface reactions and is eventually evaporated. For the first time, the impact of a detailed multilayer approach to grain mantle formation on the warm-up chemistry is explored. The use of a multilayer ice structure has a mixed impact on the abundances of organic species formed during the warm-up phase. For example, the abundance of gaseous HCOOCH3 is lower in the multilayer model than in previous grain models that do not distinguish between layers (so-called two phase models). Other gaseous organic species formed in the warm-up phase are affected slightly. Finally, we find that the entrapment of volatile species in water ice can explain the two-jump behavior of H2CO previously found in observations of protostars.

A. I. Vasyunin; Eric Herbst

2013-01-01T23:59:59.000Z

246

Friction coefficients of sorghum grain on steel, teflon, and concrete surfaces  

E-Print Network [OSTI]

Friction Coefficients of Sorghum Grain on a Hot-rolled, 1010 Steel Surface at the Indicated Moisture Content and Time of Exposure to a 70oF and 80 Per Cent Relative Humidity Environment. . . 42 3 . Average Friction Coefficients of Sorghum Grain on a... at the Indicated Moisture Content and Time of Exposure to a 70 F and 55 Per Cent Relative Humidity Environment. 1 0. 5 20. Friction Data of Sorghum Grain on a I/16-inch Thick Teflon Sheet at the Indicated Moisture Content and Time of Exposure to a 70 F and 80...

Hossain, Quazi A

2012-06-07T23:59:59.000Z

247

Crystallographic Characteristics of Grain Boundaries in Dense Yttria-Stabilized Zirconia  

SciTech Connect (OSTI)

Grain-boundary plane, misorientation angle, grain size, and grain-boundary energy distributions were quantified using electron backscatter diffraction data for dense polycrystalline yttria-stabilized zirconia, to understand interfacial crystallography in solid oxide fuel cells. Tape-cast samples were sintered at 14501C for 4 h and annealed for at least 100 h between 8001C and 16501C. Distributions obtained from both three-dimensional (3D) reconstructions and stereological analyses of 2D sections demonstrated that the (100) boundary planes {(111)} have relative areas larger {smaller} than expected in a random distribution, and that the boundary plane distribution is inversely correlated to the boundary energy distribution.

Lam Helmick; Shen J. Dillon; Kirk Gerdes; Randall Gemmen; Gregory S. Rohrer; Sridhar Seetharaman; Paul A. Salvador

2010-04-01T23:59:59.000Z

248

A comparison of silage and grain yields of four corn hybrids at three locations in Texas  

E-Print Network [OSTI]

of variance of lodging percentage at College Stationi Silage yields grain yield snd lodging percentage of four corn 5. 6. hybrids and three spacingsi CoU. ege Station, Analysis of variance of silage yields at Temple Analysis of variance of grain yields... difference in yields of grain at 12~ 18 snd 24-inch spac- ings ~ Singleton et al. (Q) oaution that a good silage hybrid must not oniy produce well but should also stand up in summer storms. They point out that corn must be ereot at harvest time in order...

Spears, Ben Riley

2012-06-07T23:59:59.000Z

249

Evaluating chemical and physical properties of grain dust for use in an explosion hazard indicator  

E-Print Network [OSTI]

0, um P 30. 0 40. 0 50. 0 FIG. l Hlnimum explosive concentration as a function of particle diameter and distance between particles, the highest levels measured at transfer points. From studies at Texas AFM University, Parnell and 8arton (1979... ) found dust levels in wheat and grain sorghum from a terminal elevator vary from 1000 to 5000 grams of dust less than 100 um per metric ton of grain (2 to 10 pounds per ton). Levels of dust in grain sorghum samples collected by Parnell (1981...

Plemons, Dorothy Sue

2012-06-07T23:59:59.000Z

250

Large grains in the disk of CQ Tau  

E-Print Network [OSTI]

We present 7mm observations of the dusty disk surrounding the 10 Myr old 1.5 Msun pre-main-sequence star CQ Tauri obtained at the Very Large Array with 0.8 arcsecond resolution and 0.1 mJy rms sensitivity. These observations resolve the 7mm emission in approximately the north-south direction, confirming previous results obtained with lower resolution. We use a two-layer flared disk model to interpret the observed fluxes from 7mm to 1.3mm together with the resolved 7mm structure. We find that the disk radius is constrained to the range 100 to 300 AU, depending on the steepness of the disk surface density distribution. The power law index of the dust opacity coefficient, beta, is constrained to be 0.5 to 0.7. Since the models indicate that the disk is optically thin at millimeter wavelengths for radii greater than 8 AU, the contribution of an optically thick region to the emission is less than 10%. This implies that high optical depth or complex disk geometry cannot be the cause of the observed shallow millimeter spectral index. Instead, the new analysis supports the earlier suggestion that dust particles in the disk have grown to sizes as large as a few centimeters. The dust in the CQ Tauri system appears to be evolved much like that in the TW Hydra system, a well-studied pre-main-sequence star of similar age and lower mass. The survival of gas-rich disks with incomplete grain evolution at such old ages deserves further investigations.

L. Testi; A. Natta; D. S. Shepherd; D. J. Wilner

2003-03-18T23:59:59.000Z

251

Applied Math and Statistics: Applied Math Minor Curriculum Chart: 2013-2014  

E-Print Network [OSTI]

Applied Math and Statistics: Applied Math Minor Curriculum Chart: 2013-2014 http://matlab-training.soe.ucsc.edu/ PROBABILITY THEORY OR AMS 131 Introduction to Probability Theory CE 107 Mathematical Methods of Systems by the department. #12;Applied Math and Statistics: Applied Math Minor Curriculum Chart: 2013-2014 http

Stuart, Josh

252

Postdoctoral Position in Applied Mathematics Seminar for Applied Mathematics of ETH Zurich  

E-Print Network [OSTI]

Postdoctoral Position in Applied Mathematics Seminar for Applied Mathematics of ETH Z¨urich The Seminar for Applied Mathematics (SAM) of ETH Z¨urich offers a post- doctoral position in applied a competitive salary according to the standards of ETH Z¨urich as well as the opportunity to work

Feichtinger, Hans Georg

253

PhD Position in Applied Mathematics Seminar for Applied Mathematics of ETH Zurich  

E-Print Network [OSTI]

PhD Position in Applied Mathematics Seminar for Applied Mathematics of ETH Z¨urich The Seminar for Applied Mathematics (SAM) of ETH Z¨urich offers a PhD position in applied mathematics. The main research teaching load. The successful candidate will receive a competitive salary according to the standards of ETH

Feichtinger, Hans Georg

254

Land application of thin stillage from a grain sorghum feedstock  

E-Print Network [OSTI]

that the dried solids had to be re- moved, raked, or incorporated into the soil before the next application. They suggested application cycles be- tween 7 and 14 days so that adequate drying could occur. Chemical Processes Adsorption and precipitation... and Sommers (23) used long incubation procedures ( 16 weeks) to find the mineralization of nitrogen in twenty-four sewage sl udges applied to the soil. They compared the leaching procedures used during incubation by Stanford and Smith (31) and Griffin...

Jenkins, Joseph Wendell

1985-01-01T23:59:59.000Z

255

Applied Intellectual Capital AIC | Open Energy Information  

Open Energy Info (EERE)

Zip: 94501-1010 Product: Applied Intellectual Capital (AIC) was founded in 1999 to fund technology development in clean energy, clean water and sustainable resources. References:...

256

Corrections APPLIED PHYSICAL SCIENCES, BIOPHYSICS AND  

E-Print Network [OSTI]

Corrections APPLIED PHYSICAL SCIENCES, BIOPHYSICS AND COMPUTATIONAL BIOLOGY Correction gene, MyHC-IIb, which is thought under most circumstances not to be expressed. The physiological

Spudich, James A.

257

Applied Films Corporation | Open Energy Information  

Open Energy Info (EERE)

Name: Applied Films Corporation Place: Longmont, Colorado Zip: 80504 Sector: Services, Solar Product: Provider of thin film deposition equipment and services, particularly to...

258

Energy and resource conservation in the grain corn cultivation on irrigated lands  

Science Journals Connector (OSTI)

The possibility of increasing the efficiency of grain maize (corn) cultivation is shown in the comparative study of two cultivation technologies of this culture: the traditional and the proposed one—based on...

P. I. Kuznetsov; A. E. Novikov

2013-09-01T23:59:59.000Z

259

Faceting and Roughening of the Asymmetric Twin Grain Boundaries in Zinc  

Science Journals Connector (OSTI)

Faceting of grain boundaries (GBs) or surfaces can be considered as a phase transition when the original surface or GB dissociates onto flat segments whose energy is less than that of original surface or GB. Z...

B.B. Straumal; V.G. Sursaeva; S.A. Polyakov

2001-11-01T23:59:59.000Z

260

27.03.20071 Grain size distributions of fault rocks: a comparison between experimentally and3  

E-Print Network [OSTI]

Exploration, Japan Agency for Marine-Earth Science and Technology11 3173-25 Showa-machi, Kanazawa-ku, Yokohama; further displacement of fragments causes further comminution by wear and attrition.56 Cracked grains have

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "grain cxs applied" 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

Degradation of Phytates in Distillers’ Grains and Corn Gluten Feed by Aspergillus niger Phytase  

Science Journals Connector (OSTI)

Distillers’ dried grains with solubles (DDGS) and corn gluten feed (CGF) are major coproducts of ethanol production from corn dry grind and wet milling facilities, respectively. These coproducts contain important...

H. Noureddini; J. Dang

2009-10-01T23:59:59.000Z

262

Fatty acid compositions of lipids from corn and grain sorghum kernels  

Science Journals Connector (OSTI)

Characteristics and fatty acid compositions of the lipid components of the main fractions (germ, starch, gluten, and fiber) obtained in the wet milling of corn and grain sorghum kernels have been determined.

A. R. Baldwin; M. S. Sniegowski

1951-01-01T23:59:59.000Z

263

Tissue-specific localization of aspartic proteinase in developing and germinating barley grains  

Science Journals Connector (OSTI)

Resting seeds of several plant species, including barley grains, have been reported to contain aspartic proteinase (EC 3.4.23) activity. Here, the expression of the Hordeum vulgare L. aspartic proteinase (HvAP) w...

Kirsi Törmäkangas; Jukka Kervinen; Anne Östman; Teemu Teeri

1994-11-01T23:59:59.000Z

264

Allocation procedure in ethanol production system from corn grain i. system expansion  

Science Journals Connector (OSTI)

We investigated the system expansion approach to net energy analysis for ethanol production from domestic corn grain. Production systems included in this study are ethanol production from corn dry milling and cor...

Seungdo Kim; Bruce E. Dale

2002-07-01T23:59:59.000Z

265

Nondestructive method and apparatus for imaging grains in curved surfaces of polycrystalline articles  

DOE Patents [OSTI]

A nondestructive method, and associated apparatus, are provided for determining the grain flow of the grains in a convex curved, textured polycrystalline surface. The convex, curved surface of a polycrystalline article is aligned in a horizontal x-ray diffractometer and a monochromatic, converging x-ray beam is directed onto the curved surface of the polycrystalline article so that the converging x-ray beam is diffracted by crystallographic planes of the grains in the polycrystalline article. The diffracted x-ray beam is caused to pass through a set of horizontal, parallel slits to limit the height of the beam and thereafter. The linear intensity of the diffracted x-ray is measured, using a linear position sensitive proportional counter, as a function of position in a direction orthogonal to the counter so as to generate two dimensional data. An image of the grains in the curved surface of the polycrystalline article is provided based on the two-dimensional data.

Carpenter, Donald A. (Lenior City, TN)

1995-01-01T23:59:59.000Z

266

Density and Energy Distribution of Interface States in the Grain Boundaries of Polysilicon Nanowire  

Science Journals Connector (OSTI)

Wafer-scale fabrication of semiconductor nanowire devices is readily facilitated by lithography-based top-down fabrication of polysilicon nanowire (P-SiNW) arrays. However, free carrier trapping at the grain boundaries of polycrystalline materials ...

Iddo Amit; Danny Englander; Dror Horvitz; Yaniv Sasson; Yossi Rosenwaks

2014-10-09T23:59:59.000Z

267

Genetic analysis and QTL mapping for grain chalkiness characteristics of brown rice (Oryza sativa L.)  

Science Journals Connector (OSTI)

Grain chalkiness is one of the important appearance qualities in rice marketing. But it is a complex trait, controlled by polygenes and easily influenced by the environment. Genetic analysis and QTL detection ...

Yang Qin; Suk-Man Kim; Jae-Keun Sohn

2009-04-01T23:59:59.000Z

268

Nano-scale strengthening from grains, subgrains, and particles in Fe-based alloys  

E-Print Network [OSTI]

x ULTRAFINE GRAINED MATERIALS Nano-scale strengthening fromSpringerlink.com Abstract Nano-scale strengthening has beenless than 20 h), develop nano-scale subgrains [15]. These

Lesuer, D. R.; Syn, C. K.; Sherby, O. D.

2010-01-01T23:59:59.000Z

269

Influence of the grain size on deleterious phase precipitation in superduplex stainless steel UNS S32750  

SciTech Connect (OSTI)

In the present work, the effect of grain size on deleterious phase precipitation in a superduplex stainless steel was investigated. The materials studied were heat treated isothermally at 800 deg. C, 850 deg. C and 900 deg. C for times up to 120 min. Hardness tests, light optical microscopy, scanning electron microscopy and X-ray diffraction were carried out to detect sigma and other harmful precipitate phases. The ferritic and austenitic grain sizes in the solution treated condition of the two steels analyzed were measured by electron backscattered diffraction (EBSD). Cyclic polarization corrosion tests were performed to evaluate the effect of grain size on the corrosion resistance. The results presented show that the precipitation of deleterious phases such as {chi}, {sigma} and {gamma}{sub 2}, which can occur during welding and forming operations, is retarded by grain growth.

Pardal, J.M. [Universidade Federal Fluminense, Departamento de Engenharia Mecanica, Rua Passo da Patria, 156-CEP 24210-240, Niteroi/Brazil (Brazil); Tavares, S.S.M. [Universidade Federal Fluminense, Departamento de Engenharia Mecanica, Rua Passo da Patria, 156-CEP 24210-240, Niteroi/Brazil (Brazil)], E-mail: ssmtavares@terra.com.br; Fonseca, M. Cindra; Souza, J.A. de; Corte, R.R.A. [Universidade Federal Fluminense, Departamento de Engenharia Mecanica, Rua Passo da Patria, 156-CEP 24210-240, Niteroi/Brazil (Brazil); Abreu, H.F.G. de [Universidade Federal do Ceara, Departamento de Engenharia Metalugica e de Materiais, Campus do Pici Bl. 702, Fortaleza, CE, CEP 60.455-760 (Brazil)

2009-03-15T23:59:59.000Z

270

Grain sorghum, reconstituted in whole and in ground forms, in finishing rations for beef cattle  

E-Print Network [OSTI]

grain. Baberlandt (1890), cited by Overbeek (1966), recognized that the aleurone layer is a gland which secretes the hydrolytic enzyme (alpha-amylase)responsible for liquifying the reserve starch. The presence of the embryo is required before... grain. Baberlandt (1890), cited by Overbeek (1966), recognized that the aleurone layer is a gland which secretes the hydrolytic enzyme (alpha-amylase)responsible for liquifying the reserve starch. The presence of the embryo is required before...

Penic, Peter

2012-06-07T23:59:59.000Z

271

The feeding value of water and acetic acid reconstituted sorghum grain for lactating dairy cows  

E-Print Network [OSTI]

THE FEEDING VALUE OF WATER AND ACETIC ACID RECONSTITUTED SORGHUM GRAIN FOR LACTATING DAIRY COWS A Thesis by DAVID HEINIE BADE Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE May 1972 Major Subject: Animal Nutrition THE FEEDING VALUE OF WATER AND ACETIC ACID RECONSTITUTED SORGHUM GRAIN FOR LACTATING DAIRY COWS A Thesis by DAVID HEINIE BADE Approved as to style and content by: C ' man o Committee...

Bade, David Heinie

2012-06-07T23:59:59.000Z

272

Multiscale modeling approach for calculating grain-boundary energies from first principles  

Science Journals Connector (OSTI)

A multiscale modeling approach is proposed for calculating energies of tilt-grain boundaries in covalent materials from first principles over an entire misorientation range for given tilt axes. The method uses energies from density-functional calculations for a few key structures as input into a disclination structural-units model. This approach is demonstrated by calculating energies of ?001?-symmetrical tilt-grain boundaries in diamond.

O. A. Shenderova; D. W. Brenner; A. A. Nazarov; A. E. Romanov; L. H. Yang

1998-02-01T23:59:59.000Z

273

Trickle irrigation of grain sorghum with water of different electrolyte concentrations  

E-Print Network [OSTI]

TRICKLE IRRIGATION OF GRAIN SORGHUM WITH WATER OF DIFFERENT ELECTROLYTE CONCENTRATIONS A Thesis by WILLIAM JOHN SEIFERT, JR. Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE May 1973 Major Subject: Agricultural Engineering TRICKLE IRRIGATION OF GRAIN SORGHUM WITH WATER OF DIFFERENT ELECTROLYTE CONCENTRATIONS A Thesis by WILLIAM JOHN SEIFERT& JR. Approved as to sty1e and content by: airman of Commi...

Seifert, William John

2012-06-07T23:59:59.000Z

274

Performance and carcass characteristics of cattle fed excrement reconstituted grain sorghum  

E-Print Network [OSTI]

. Tempevatuve Moistuze leveZ. Eeeding Value of Heconstituted Grain Sorghum Ammoniated Hics Hulls. Cattle Waste Hecpcling . OBJECTIVES. MATERIALS AND METHODS Grain Processing Eeeding 2tiaL I. Feeding Ttial II . Digestion Trial. Pavticle Sise. Statisti... 32 CHEMICAL COMPOSITION OF PREMIX AND AMMONIATED RICE HULLS USED IN TRIAL I . . . . . . . . . . . . . . . . . 33 CHEMICAL COMPOSITION OF FEED MIXTURES USED IN TRIAL I 34 FEED CONSUMPTION OF STEERS PRESENTED BY TREATMENT AND TIME INTERVALS...

Pinkerton, Bruce Willis

1976-01-01T23:59:59.000Z

275

Shapes and surface textures of quartz sand grains from glacial deposits: effects of source and transport  

E-Print Network [OSTI]

for the degree MASTER OF SCIENCE December 1987 Major Subject: Geology SHAPES AND SURFACE TERTURES OF QUARTZ SAND GRAINS FROM GLACIAL DEPOSITS: EFFECTS OF SOURCE AND TRANSPORT A Thesis by CHRISTINE RITTER Approved as to style and content by; James zzullo... (Chairman of Committee) Thomas T. Tieh (Member) Louis E. Garrison (Member) Gail M. Ashley (Member) ohn H. Spa (He d of Department) December 1987 ABSTRACT Shapes and Surface Textures of Quartz Sand Grains From Glacial Deposits: Effects of Source...

Ritter, Christine

2012-06-07T23:59:59.000Z

276

Nutritional value of sorghum grain after treatment with water and enzymes  

E-Print Network [OSTI]

. It appears that a breaking down oi the proteins and starch molecules of the ground grain by Protease and Amylase, respectively, into smaller molecules offered a better material for an anaerobic fermentation which might have caused the reduction... of the methionine and 45. 75/ of the cystine in the grain. It appears that a breaking down of the proteins and starch molecules by Protease and Amylase, respectively, into smaller molecules offered a better material for an anaerobic fermentation which might have...

Silva, Paulo Carlos

2012-06-07T23:59:59.000Z

277

The export responsiveness of the Argentine grain export marketing system: a constant market share analysis  

E-Print Network [OSTI]

THE EXPORT RESPONSIVENESS OF THE ARGENTINE GRAIN EXPORT MARKET NG SYSTEM: A CONSTANT MARKET SHARE ANALYSIS A Thesis by SCOTT ALAN MILLIMET Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE May 1982 Ma) or Subject: Agricultural Economics THE EXPORT RESPONSIVENESS OF THE ARGENTINE GRAIN EXPORT MARKETING SYSTEM: A CONSTANT MARKET SHARE ANALYSIS A Thesis by SCOTT ALAN MILLIMET Approved as to style...

Millimet, Scott Alan

1982-01-01T23:59:59.000Z

278

HINTS FOR NEUTRINO-PROCESS BORON IN PRESOLAR SILICON CARBIDE GRAINS FROM SUPERNOVAE  

SciTech Connect (OSTI)

We have studied more than 1000 presolar silicon carbide (SiC) grains from the Murchison CM2 chondrite for C- and Si-isotopic compositions. Twelve SiC X grains, characterized by strong enrichments in {sup 28}Si and believed to originate from Type II Supernovae (SNeII), were also measured for Li- and B-isotopic compositions. None of these grains show resolvable isotope anomalies in Li or B. For the seven X grains without Li and B contributions from nearby or attached SiC grains of distinct origins we find on average {sup 7}Li/{sup 6}Li = 11.83 {+-} 0.29 (solar system: 12.06) and {sup 11}B/{sup 10}B = 4.68 {+-} 0.31 (solar system: 4.03). The average {sup 7}Li/{sup 6}Li is compatible with the solar system ratio and the lithium in the X grains is likely largely dominated by contaminating Li of laboratory or meteoritic origin. Also, most of the boron in X grains appears to be contamination but the small {sup 11}B excess of {approx}16%, significant at the 2{sigma} level, can be considered a hint for the presence of boron produced by the neutrino process in the parent SNeII. Despite this finding, a quantitative comparison of the B isotope and abundance data of X grains with model predictions reveals deficiencies in our current understanding of the details of B production in SNeII as well as on B chemistry and condensation in SNII ejecta.

Fujiya, Wataru [Department of Earth and Planetary Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan); Hoppe, Peter; Ott, Ulrich, E-mail: fujiya@eps.s.u-tokyo.ac.jp [Max Planck Institute for Chemistry, J.-J.-Becher-Weg 27, 55128 Mainz (Germany)

2011-03-20T23:59:59.000Z

279

Enrichment of Fe and Ni at metal and oxide grain boundaries in corroded Zircaloy-2  

Science Journals Connector (OSTI)

Atom probe tomography has been used to study for the first time the metal–oxide interface region in Zircaloy-2. Segregation of Fe and Ni to both deformation-induced sub-grain boundaries in the metal and planar features in the oxide has been found. Apparently, the oxide inherits the chemistry of the sub-grain boundaries as the material oxidizes, which may have implications for the waterside corrosion kinetics of the alloy.

G. Sundell; M. Thuvander; H.-O. Andrén

2012-01-01T23:59:59.000Z

280

Roadmap: Technical and Applied Studies Fraud Examination  

E-Print Network [OSTI]

Roadmap: Technical and Applied Studies ­ Fraud Examination ­ Bachelor of Technical and Applied of Fraud Examination 3 C COMT 36318 Survey of Information Security, Internet Fraud and Computer Forensics to Fraud Examination 3 C JUS 22100 Basic Interviewing 3 C Major Requirement 3 C See note 2 on page 2

Sheridan, Scott

Note: This page contains sample records for the topic "grain cxs applied" 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

GRANT APPLICATION I am applying for a  

E-Print Network [OSTI]

GRANT APPLICATION I am applying for a: Faculty Research Travel Grant ($2,000 Maximum) The funds University Guidelines. Partnership Grant ($2,000 Maximum) The funds must be applied to costs directly related to travel (airfare, accommodation, and meals). This grant is not intended for general costs

282

UNL Core for Applied Genomics and Ecology  

E-Print Network [OSTI]

UNL Core for Applied Genomics and Ecology Bioinformatics training Roche 454 GS-FLX Registration, Microbiomes, Variant Analysis, Whole Genomes, Transcriptomes Data Analysis and Statistics CAGE database and employer. University of Nebraska-Lincoln*Core for Applied Genomics and Ecology* 323 Filley Hall *Lincoln

Farritor, Shane

283

Observation of thermally etched grain boundaries with the FIB/TEM technique  

SciTech Connect (OSTI)

Thermal etching is a method which is able to reveal and characterize grain boundaries, twins or dislocation structures and determine parameters such as grain boundary energies, surface diffusivities or study phase transformations in steels, intermetallics or ceramic materials. This method relies on the preferential transfer of matter away from grain boundaries on a polished sample during heating at high temperatures in an inert/vacuum atmosphere. The evaporation/diffusion of atoms at high temperatures results in the formation of grooves at the intersections of the planes of grain/twin boundaries with the polished surface. This work describes how the combined use of Focussed Ion Beam and Transmission Electron Microscopy can be used to characterize not only the grooves and their profile with the surface, but also the grain boundary line below the groove, this method being complementary to the commonly used scanning probe techniques. - Highlights: • Thermally etched low-carbon steel samples have been characterized by FIB/TEM • Grain boundary (GB) lines below the groove have been characterized in this way • Absence of ghost traces and large ? angle suggests that GB are not stationary but mobile • Observations correlate well with previous works and Mullins' investigations [22].

Palizdar, Y., E-mail: y.palizdar@merc.ac.ir [Nanotechnology and advanced materials department, Materials and energy research centre (MERC), Karaj (Iran, Islamic Republic of); San Martin, D. [MATERALIA group, Department of Physical Metallurgy, (CENIM-CSIC), Centro Nacional de Investigaciones Metalúrgicas Av. Gregorio del Amo 8, 28040 Madrid (Spain); Ward, M.; Cochrane, R.C.; Brydson, R.; Scott, A.J. [Institute for Materials Research, SPEME, University of Leeds, Leeds LS2 9JT (United Kingdom)

2013-10-15T23:59:59.000Z

284

Heavy Element Abundances in Presolar Silicon Carbide Grains from Low-Metallicity AGB Stars  

E-Print Network [OSTI]

Primitive meteorites contain small amounts of presolar minerals that formed in the winds of evolved stars or in the ejecta of stellar explosions. Silicon carbide is the best studied presolar mineral. Based on its isotopic compositions it was divided into distinct populations that have different origins: Most abundant are the mainstream grains which are believed to come from 1.5-3 Msun AGB stars of roughly solar metallicitiy. The rare Y and Z grains are likely to come from 1.5-3 Msun AGB stars as well, but with subsolar metallicities (0.3-0.5x solar). Here we report on C and Si isotope and trace element (Zr, Ba) studies of individual, submicrometer-sized SiC grains. The most striking results are: (1) Zr and Ba concentrations are higher in Y and Z grains than in mainstream grains, with enrichments relative to Si and solar of up to 70x (Zr) and 170x (Ba), respectively. (2) For the Y and Z grains there is a positive correlation between Ba concentrations and amount of s-process Si. This correlation is well explain...

Hoppe, P; Vollmer, C; Groener, E; Heck, P R; Gallino, R; Amari, S; 10.1071/AS08033

2009-01-01T23:59:59.000Z

285

Applied Materials Inc AMAT | Open Energy Information  

Open Energy Info (EERE)

Inc AMAT Inc AMAT Jump to: navigation, search Name Applied Materials Inc (AMAT) Place Santa Clara, California Zip 95052-8039 Sector Solar Product US-based manufacturer of equipment used in solar (silicon, thin-film, BIPV), semiconductor, and LCD markets. References Applied Materials Inc (AMAT)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Applied Materials Inc (AMAT) is a company located in Santa Clara, California . References ↑ "Applied Materials Inc (AMAT)" Retrieved from "http://en.openei.org/w/index.php?title=Applied_Materials_Inc_AMAT&oldid=342244" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes

286

Applied Materials Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Wind Turbine Wind Turbine Jump to: navigation, search Name Applied Materials Wind Turbine Facility Applied Materials Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Applied Materials Developer Applied Materials Energy Purchaser Applied Materials Location Gloucester MA Coordinates 42.62895426°, -70.65153122° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.62895426,"lon":-70.65153122,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

287

How to Apply??? Students wishing to apply for a position in the  

E-Print Network [OSTI]

as grounds maintenance and landscaping responsibilities. Work Schedule: The workHow to Apply??? Students wishing to apply for a position in the landscape your application package to: Cranbrook Educational Community Landscape Horticulture

288

PROPERTIES OF NEWLY FORMED DUST GRAINS IN THE LUMINOUS TYPE IIn SUPERNOVA 2010jl  

SciTech Connect (OSTI)

Supernovae (SNe) have been proposed to be the main production sites of dust grains in the universe. However, our knowledge of their importance to dust production is limited by observationally poor constraints on the nature and amount of dust particles produced by individual SNe. In this paper, we present a spectrum covering optical through near-Infrared (NIR) light of the luminous Type IIn supernova 2010jl around one and a half years after the explosion. This unique data set reveals multiple signatures of newly formed dust particles. The NIR portion of the spectrum provides a rare example where thermal emission from newly formed hot dust grains is clearly detected. We determine the main population of the dust species to be carbon grains at a temperature of ?1350-1450 K at this epoch. The mass of the dust grains is derived to be ?(7.5-8.5) × 10{sup –4} M{sub ?}. Hydrogen emission lines show wavelength-dependent absorption, which provides a good estimate of the typical size of the newly formed dust grains (?< 0.1 ?m, and most likely ?< 0.01 ?m). We believe the dust grains were formed in a dense cooling shell as a result of a strong SN-circumstellar media (CSM) interaction. The dust grains occupy ?10% of the emitting volume, suggesting an inhomogeneous, clumpy structure. The average CSM density must be ?> 3 × 10{sup 7} cm{sup –3}, corresponding to a mass loss rate of ?> 0.02 M{sub ?} yr{sup –1} (for a mass loss wind velocity of ?100 km s{sup –1}). This strongly supports a scenario in which SN 2010jl and probably other luminous SNe IIn are powered by strong interactions within very dense CSM, perhaps created by Luminous-Blue-Variable-like eruptions within the last century before the explosion.

Maeda, K.; Nozawa, T.; Folatelli, G.; Moriya, T. J.; Nomoto, K.; Bersten, M.; Quimby, R. [Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583 (Japan); Sahu, D. K.; Anupama, G. C. [Indian Institute of Astrophysics, Koramangala, Bangalore 560 034 (India); Minowa, Y.; Pyo, T.-S. [Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohoku Place, Hilo, HI 96720 (United States); Motohara, K.; Kitagawa, Y. [Institute of Astronomy, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015 (Japan); Ueno, I.; Kawabata, K. S.; Yamanaka, M. [Hiroshima Astrophysical Science Center, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526 (Japan); Kozasa, T. [Department of Cosmosciences, Graduate School of Science, Hokkaido University, Sapporo 060-0810 (Japan); Iye, M., E-mail: keiichi.maeda@ipmu.jp [National Astronomical Observatory, Mitaka, Tokyo (Japan)

2013-10-10T23:59:59.000Z

289

A coarse-grained, ``realistic'' model for Protein Folding  

E-Print Network [OSTI]

A phenomenological model hamiltonian to describe the folding of a protein with any given sequence is proposed. The protein is thought of as a collection of pieces of helices; as a consequence its configuration space increases with the number of secondary structure elements rather than with the number of residues. The hamiltonian presents both local (i.e. single helix, accounting for the stiffness of the chain) and non local (interactions between hydrophobically-charged helices) terms, and is expected to provide a first tool for studying the folding of real proteins. The partition function for a simplified, but by no means trivial, version of the model is calculated almost completely in an analytical way. The latter simplified model is also applied to the study of a synthetic protein, and some preliminary results are shown.

Pierpaolo Bruscolini

1997-07-24T23:59:59.000Z

290

Vehicle Technologies Office: Applied Battery Research  

Broader source: Energy.gov [DOE]

Applied battery research addresses the barriers facing the lithium-ion systems that are closest to meeting the technical energy and power requirements for hybrid electric vehicle (HEV) and electric...

291

Applied Field Research Initiative Deep Vadose Zone  

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

Applied Field Research Initiative Applied Field Research Initiative Deep Vadose Zone Located on the Hanford Site in Richland, Washington, the Deep Vadose Zone Applied Field Research Initiative (DVZ AFRI) was established to protect water resources by addressing the challenge of preventing contamination in the deep vadose zone from reaching groundwater. Led by the Pacific Northwest National Laboratory, the Initiative is a collaborative effort that leverages Department of Energy (DOE) investments in basic science and applied research and the work of site contractors to address the complex deep vadose zone contamination challenges. Challenge Many vadose zone environments within the DOE complex consist of complex stratified layers of unconsolidated and water-unsaturated sediments that are, in many places, con-

292

Roadmap: Applied Engineering Applied Engineering and Technology Management Bachelor of Science  

E-Print Network [OSTI]

Roadmap: Applied Engineering ­ Applied Engineering and Technology Management ­ Bachelor of Science [AT-BS-AENG-AETM] College of Applied Engineering, Sustainability and Technology Catalog Year: 2013­2014 Page 1 of 2 | Last Updated: 28-Feb-13/JS This roadmap is a recommended semester-by-semester plan

Sheridan, Scott

293

Roadmap: Applied Engineering Applied Engineering and Technology Management Bachelor of Science  

E-Print Network [OSTI]

Roadmap: Applied Engineering ­ Applied Engineering and Technology Management ­ Bachelor of Science [AT-BS-AENG-AETM] College of Applied Engineering, Sustainability and Technology Catalog Year: 2012­2013 Page 1 of 2 | Last Updated: 21-May-12/JS This roadmap is a recommended semester-by-semester plan

Sheridan, Scott

294

Roadmap: Technical and Applied Studies -Computer Technology General -Bachelor of Technical and Applied Studies  

E-Print Network [OSTI]

Roadmap: Technical and Applied Studies - Computer Technology General - Bachelor of Technical;Roadmap: Technical and Applied Studies - Computer Technology General - Bachelor of Technical and Applied-Mar-14/JSK This roadmap is a recommended semester-by-semester plan of study for this major. However

Khan, Javed I.

295

Corrosion and ion release behavior of ultra-fine grained bulk pure copper fabricated by ECAP in Hanks solution as potential biomaterial for contraception  

E-Print Network [OSTI]

Corrosion and ion release behavior of ultra-fine grained bulk pure copper fabricated by ECAP-fine grained copper ECAP Corrosion behavior Ion release Ultra-fine grained (UFG) bulk pure copper has been revealed that the corrosion current of UFG copper ishigherthan that of the coarse grained copper

Zheng, Yufeng

296

I/O Router Placement and Fine-Grained Routing on Titan to Support Spider II  

SciTech Connect (OSTI)

The Oak Ridge Leadership Computing Facility (OLCF) introduced the concept of Fine-Grained Routing in 2008 to improve I/O performance between the Jaguar supercomputer and Spider, OLCF s center-wide Lustre file system. Fine-grained routing organizes I/O paths to minimize congestion. Jaguar has since been upgraded to Titan, providing more than a ten-fold improvement in peak performance. To support the center s increased computational capacity and I/O demand, the Spider file system has been replaced with Spider II. Building on the lessons learned from Spider, an improved method for placing LNET routers was developed and implemented for Spider II. The fine-grained routing scripts and configuration have been updated to provide additional optimizations and better match the system setup. This paper presents a brief history of fine-grained routing at OLCF, an introduction to the architectures of Titan and Spider II, methods for placing routers in Titan, and details about the fine-grained routing configuration.

Ezell, Matthew A [ORNL] [ORNL; Dillow, David [None] [None; Oral, H Sarp [ORNL] [ORNL; Wang, Feiyi [ORNL] [ORNL; Tiwari, Devesh [ORNL] [ORNL; Maxwell, Don E [ORNL] [ORNL; Leverman, Dustin B [ORNL] [ORNL; Hill, Jason J [ORNL] [ORNL

2014-01-01T23:59:59.000Z

297

Evidence for Radiogenic Sulfur-32 in Type AB Presolar Silicon Carbide Grains?  

E-Print Network [OSTI]

We report C, Si, and S isotope measurements on 34 presolar silicon carbide grains of Type AB, characterized by 12C/13C < 10. Nitrogen, Mg-Al-, and Ca-Ti-isotopic compositions were measured on a subset of these grains. Three grains show large 32S excesses, a signature that has been previously observed for grains from supernovae (SNe). Enrichments in 32S may be due to contributions from the Si/S zone and the result of S molecule chemistry in still unmixed SN ejecta or due to incorporation of radioactive 32Si from C-rich explosive He shell ejecta. However, a SN origin remains unlikely for the three AB grains considered here, because of missing evidence for 44Ti, relatively low 26Al/27Al ratios (a few times 10-3), and radiogenic 32S along with low 12C/13C ratios. Instead, we show that born-again asymptotic giant branch (AGB) stars that have undergone a very-late thermal pulse (VLTP), known to have low 12C/13C ratios and enhanced abundances of the light s-process elements, can produce 32Si, which makes such sta...

Fujiya, Wataru; Zinner, Ernst; Pignatari, Marco; Herwig, Falk

2013-01-01T23:59:59.000Z

298

Modeling of grain growth behavior of S34MnV steel at elevated temperatures  

Science Journals Connector (OSTI)

S34MnV steel is widely used as a fundamental material in manufacturing crankshaft in diesel engine. However due to amount of addition of Manganese element in the steel coarse grain and mixed grain are commonly observed after long time heating during the forging passes in industrial practice which may seriously reduce the impact toughness of the material. In current study based on the observed microstructure of S34MnV steel at different temperatures and heating times an empirical model has been established which reflects the relationship between the final grain size and the initial grain size as well as heating temperature and holding time. This model has been validated by a scaled sample and we further represented a successful industrial application of this model to simulate the grain size distribution and evolution during a large crankthrow heating and forging process which evidences its practical and promising perspective of our model with an aim of widely promoting the mechanical properties heavy marine components.

Yiyi Li

2013-01-01T23:59:59.000Z

299

Spatially Resolved Mapping of Electrical Conductivity around Individual Domain (Grain) Boundaries in Graphene  

SciTech Connect (OSTI)

Graphene films can now be produced on the scale of up to meters. However, all large-scale graphene films contain topological defects that can significantly affect the characteristic transport behaviors of graphene. Here, we spatially map the structures and electronic transport near specific domain and grain boundaries in graphene, and evaluate effects of different types of defect on the electronic conductivity in epitaxial graphene grown on SiC and CVD graphene on Cu subsequently transferred to a SiO2 substrate. We use a combined approach with a multi-probe scanning tunneling potentiometry to investigate both structures and transport at individual grain boundaries and domain boundaries that are defined by coalesced grains, surface steps, and changes in layer thickness. It is found that the substrate step on SiC presents a significant potential barrier for electron transport of epitaxial graphene due to the reduced charge transport from the substrate at the step edges, monolayer-bilayer boundaries exhibit a high resistivity that can change depending on directions of the current across the boundary, and the resistivity of grain boundaries changes with the transition width of the disordered region between two adjacent grains in graphene. The detailed understanding of graphene defects will provide the feedback for controlled engineering of defects in large-scale graphene films.

Li, An-Ping [ORNL; Clark, Kendal W [ORNL; Zhang, Xiaoguang [ORNL; Vlassiouk, Ivan V [ORNL; He, Guowei [Carnegie Mellon University (CMU); Feenstra, Randall [Carnegie Mellon University (CMU)

2013-01-01T23:59:59.000Z

300

Deep Spitzer spectroscopy of the `Flying Saucer' edge-on disk: Large grains beyond 50 AU  

E-Print Network [OSTI]

We present deep Spitzer-IRS low-resolution (lambda/Delta lambda ~ 100) 5-35 micron spectroscopy of the edge-on disk ``the Flying Saucer'' (2MASS J16281370-2431391) in the Ophiuchus molecular cloud. The spectral energy distribution exhibits the characteristic two-peak shape predicted for a circumstellar disk viewed very close to edge-on. The short-wavelength peak is entirely due to photons scattered off the surface of the disk, while the long-wavelength peak is due to thermal emission from the disk itself. The Spitzer spectrum represents the first spectroscopic detection of scattered light out to 15 micron from a bona-fide, isolated edge-on disk around a T Tauri star. The depth and the wavelength of the mid-infrared "valley" of the SED give direct constraints on the size distribution of large grains in the disk. Using a 2D continuum radiative transfer model, we find that a significant amount of 5-10 micron-sized grains is required in the surface layers of the disk at radii of 50-300 AU. The detection of relatively large grains in the upper layers implies that vertical mixing is effective, since grain growth models predict the grains would otherwise settle deep in the disk on short time scales. Additionally, we tentatively detect the 9.66 micron S(3) line of H2 and the 11.2 micron emission feature due to PAHs.

Klaus M. Pontoppidan; Karl R. Stapelfeldt; Geoffrey A. Blake; Ewine F. van Dishoeck; Cornelis P. Dullemond

2007-02-14T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

Binding of He{sub n}V clusters to ?-Fe grain boundaries  

SciTech Connect (OSTI)

The objective of this research is to explore the formation/binding energetics and length scales associated with the interaction between He{sub n}V clusters and grain boundaries in bcc ?-Fe. In this work, we calculated formation/binding energies for 1–8 He atoms in a monovacancy at all potential grain boundary (GB) sites within 15?Å of the ten grain boundaries selected (122106 simulations total). The present results provide detailed information about the interaction energies and length scales of 1–8 He atoms with grain boundaries for the structures examined. A number of interesting new findings emerge from the present study. First, the ?3(112) “twin” GB has significantly lower binding energies for all He{sub n}V clusters than all other boundaries in this study. For all grain boundary sites, the effect of the local environment surrounding each site on the He{sub n}V formation and binding energies decreases with an increasing number of He atoms in the He{sub n}V cluster. Based on the calculated dataset, we formulated a model to capture the evolution of the formation and binding energy of He{sub n}V clusters as a function of distance from the GB center, utilizing only constants related to the maximum binding energy and the length scale.

Tschopp, M. A., E-mail: mark.a.tschopp.civ@mail.mil [U.S. Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005 (United States); Gao, F. [Pacific Northwest National Laboratory, Richland, Washington 99352 (United States); Solanki, K. N. [Arizona State University, Tempe, Arizona 85287 (United States)

2014-06-21T23:59:59.000Z

302

Charging of dust grains in a nonequilibrium plasma of a stratified glow discharge  

SciTech Connect (OSTI)

A theoretical model is presented that describes the charging of dust grains in the positive plasma column of a stratified glow dc discharge in argon. A one-dimensional self-consistent model is used to obtain axial profiles of the electric field, as well as the electron energy distribution function along the axis of the discharge tube. Radial profiles of the electric field are determined in the ambipolar diffusion approximation. It is assumed that, in the radial direction, the electron distribution function depends only on the total electron energy. Two-dimensional distributions of the discharge plasma parameters are calculated and used to determine the potential and charge of a test dust grain at a certain point within the discharge and the electrostatic forces acting on it. It is shown that the grain charge distribution depends strongly on the nonequilibrium electron distribution function and on the nonuniform distribution of the electric field in a stratified glow discharge. A discussion is presented on the suspension of dust grains, the separation of grains by size in the discharge striations, and a possible mechanism for the onset of vortex dust motion at the edge of a dust cloud.

Sukhinin, G. I.; Fedoseev, A. V. [Russian Academy of Sciences, Kutateladze Institute of Thermophysics, Siberian Branch (Russian Federation)

2007-12-15T23:59:59.000Z

303

Ge surface-energy-driven secondary grain growth via two-step annealing  

Science Journals Connector (OSTI)

Abstract A two-step annealing method with a low thermal budget is proposed for advanced surface-energy-driven secondary grain growth of Ge films without any agglomeration. In the first-step annealing, the normal grain growth from as-deposited poly-crystalline Ge films was induced to make the grain size equivalent to the film thickness at 800 °C. After the subsequent second-step annealing at 900 °C, the much larger secondary grains were obtained than those by single-step annealing at 900 °C. The possible explanation regarding the final microstructure of the two-step annealed film is proposed. The two-step annealing was able to form the microstructure of Ge thin film with very large-grained matrix without any agglomeration, resulting in higher carrier mobility. Therefore, the proposed two-step annealing is believed to be a promising process applicable for channel formation processes in the next-generation Ge thin film transistors for 3D integrated circuits and vertical NAND flash memories.

Sangsoo Lee; Yong-Hoon Son; Yongjo Park; Kihyun Hwang; Yoo Gyun Shin; Euijoon Yoon

2014-01-01T23:59:59.000Z

304

On vapor shielding of dust grains of iron, molybdenum, and tungsten in fusion plasmas  

SciTech Connect (OSTI)

The shielding effects of ablation cloud around a small dust grain composed of iron, molybdenum, or tungsten in fusion plasmas are considered. These include collisional dissipation of momentum flux of impinging plasma ions, heat transfer by secondary plasma created due to electron impact ionization of the ablated atoms, and radiative plasma power losses in the ablation cloud. The maximum radius, which limits applicability of existing dust-plasma interaction models neglecting the cloud shielding effects, for dust grains of the considered high-Z metals is calculated as function of plasma parameters. The thermal bifurcation triggered by thermionic electron emission from dust grains, observed for some of the considered materials, is analyzed. The results are compared with previous calculations for dust composed of low-Z fusion related materials, i.e., lithium, beryllium, and carbon.

Brown, B. T.; Smirnov, R. D., E-mail: rsmirnov@ucsd.edu; Krasheninnikov, S. I. [Department of Mechanical and Aerospace Engineering, University of California, San Diego, 9500 Gilman Dr., La Jolla, California 92093-0411 (United States)] [Department of Mechanical and Aerospace Engineering, University of California, San Diego, 9500 Gilman Dr., La Jolla, California 92093-0411 (United States)

2014-02-15T23:59:59.000Z

305

MARMOT simulations of Xe segregation to grain boundaries in UO2  

SciTech Connect (OSTI)

Diffusion of Xe and U in UO{sub 2} is controlled by vacancy mechanisms and under irradiation the formation of mobile vacancy clusters is important. We derive continuum thermodynamic and diffusion models for Xe and U in UO{sub 2} based on the vacancy and cluster diffusion mechanisms established from recent density functional theory (DFT) calculations. Segregation of defects to grain boundaries in UO{sub 2} is described by combining the diffusion model with models of the interaction between Xe atoms and vacancies with grain boundaries derived from separate atomistic calculations. The diffusion and segregation models are implemented in the MOOSE/MARMOT (MBM) finite element (FEM) framework and we simulate Xe redistribution for a few simple microstructures. In this report we focus on segregation to grain boundaries. The U or vacancy diffusion model as well as the coupled diffusion of vacancies and Xe have also been implemented, but results are not included in this report.

Andersson, Anders D. [Los Alamos National Laboratory; Tonks, Michael [Idaho National Laboratory; Casillas, Luis [Los Alamos National Laboratory; Millett, Paul [Idaho National Laboratory; Vyas, Shyam [Los Alamos National Laboratory; Uberuaga, Blas P. [Los Alamos National Laboratory; Nerikar, Pankaj [IBM

2012-06-20T23:59:59.000Z

306

Process of Equiaxed Grains of RE-Al Alloy under Slope Vibration  

SciTech Connect (OSTI)

A new technique using slope vibration casting process during heating and isothermal holding period to prepare Al-7Si-2RE alloy has been studied. The small, near-spherical and non-dendritic microstructure with the semi-solid processing requirements has been obtained. Experiments show that the cooling method, pouring process and the convection of melt caused by slope vibration had significant effects on the formation of near-spherical primary gains. The water-cooled copper mold casting with slope vibration at the temperature near liquidus can obtain Al-7Si-2RE alloy with small homogeneous equiaxed grains, the average grain diameter is 48.3 mum, and the average grain roundness is 1.92.

Xie Shikun; Yi Rongxi; Pan Xiaoliang; Zheng Xiaoqiu; Guo Xiuyan [School of Engineering, Jinggangshan University, Ji'an, 343009 (China)

2010-06-15T23:59:59.000Z

307

Applied Process Engineering Laboratory | Open Energy Information  

Open Energy Info (EERE)

Applied Process Engineering Laboratory Applied Process Engineering Laboratory Name Applied Process Engineering Laboratory Address 350 Hills Street, Suite #101 Place Richland, Washington Zip 99354 Region Pacific Northwest Area Coordinates 46.3389754°, -119.2716263° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":46.3389754,"lon":-119.2716263,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

308

Modeling International Relationships in Applied General Equilibrium  

Open Energy Info (EERE)

Modeling International Relationships in Applied General Equilibrium Modeling International Relationships in Applied General Equilibrium (MIRAGE) Jump to: navigation, search LEDSGP green logo.png FIND MORE DIA TOOLS This tool is part of the Development Impacts Assessment (DIA) Toolkit from the LEDS Global Partnership. Tool Summary LAUNCH TOOL Name: Modeling International Relationships in Applied General Equilibrium (MIRAGE) Agency/Company /Organization: International Food Policy Research Institute, Centre d'Etudes Prospectives et d'Informations Internationales (CEPII) Focus Area: Economic Development Topics: Co-benefits assessment, - Macroeconomic Resource Type: Software/modeling tools User Interface: Desktop Application Complexity/Ease of Use: Moderate Website: www.ifpri.org/book-5076/ourwork/program/mirage-model RelatedTo: Global Trade Analysis Project (GTAP) Data Base

309

How to Apply | Department of Energy  

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

How to Apply How to Apply How to Apply Awards are made through a formal process that has changed dramatically since 2011. So let us walk you through it step by step. "Innovation pays." - John Kao, Innovation Nation Submit a Letter of Intent On October 28, 2013, the U.S. Department of Energy (DOE) announced on the DOE SBIR website a preview version of the technical topics for which it will later accept funding applications. These topics will be found on the DOE's Funding Opportunity Announcements page. The EE SBIR page lists those topics that are cleantech (specific to EERE). We also recommend that you sign up for the EE-SBIR and DOE-SBIR mailing lists. The EE SBIR mailing list signup is at https://public.govdelivery.com/accounts/USEERE/subscriber/new?topic_id=USEERE_442.

310

Applied Field Research Initiative Attenuation Based Remedies  

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

PA00133 - March 2011 PA00133 - March 2011 Applied Field Research Initiative Attenuation Based Remedies in the Subsurface Located at the Savannah River Site in Aiken, South Carolina, the Attenuation-Based Remedies in the Subsurface Applied Field Research Initiative (ABRS AFRI) was established to develop the tools, approaches and technologies that will be required to address the technical challenges associated characteriza- tion, remediation and long-term monitoring of recalcitrant compounds in the subsurface at Department of Energy (DOE) Environmental Management (EM) sites. The ABRS AFRI site provides a unique setting for researchers in both applied and basic science fields. A wealth of subsurface data is available to support research activities and remedial decision making.

311

Applied Ventures LLC | Open Energy Information  

Open Energy Info (EERE)

Applied Ventures LLC Applied Ventures LLC Name Applied Ventures LLC Address 3050 Bowers Avenue Place Santa Clara, California Zip 95054 Region Southern CA Area Product Venture capital. Number of employees 1-10 Phone number (408) 727-5555 Website http://www.appliedventures.com Coordinates 37.37751°, -121.978721° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.37751,"lon":-121.978721,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

312

Computer Modeling of Transport of Oxidizing Species in Grain Boundaries during Zirconium Corrosion  

SciTech Connect (OSTI)

Zirconium (Zr) based alloys are widely used as the cladding materials in light-water reactors. The water-side corrosion of these alloys degrades their structural integrity and poses serious safety concerns. During the Zr corrosion process, a thin Zr oxide (ZrO2) layer forms on the alloy surface and serves as a barrier layer for further corrosion. The majority of the oxide has the monoclinic phase. At the transition region between the oxide and the metal, the oxide contains a thin layer of stabilized tetragonal phase. It is found that the texture of the tetragonal layer determines the protectiveness of the oxide for corrosion. The transport of oxidizing species, such as anion defects, cation defects, and electron through the tetragonal oxide layer could be the rate limiting step of the corrosion. The defect diffusion can be affected by the growing stresses and microstructures such as grain boundaries and dislocations. In this work molecular dynamics simulations are used to investigate the anion and cation diffusion in bulk and at grain boundaries in tetragonal ZrO2. The results show that defect diffusion at grain boundaries is complex and the behavior strongly depends on the grain boundary type. For most of the grain boundaries studied the defect diffusion are much slower than in the bulk, implying that grain boundaries may not be fast defect transport paths during corrosion. The connection between the modeling results and published experimental work will also be discussed. This work is funded by the Laboratory Directed Research and Development (LDRD) program at Idaho National Laboratory.

Xian-Ming Bai; Yongfeng Zhang; Michael R. Tonks

2014-06-01T23:59:59.000Z

313

Large-grain polycrystalline silicon films with low intragranular defect density by low-temperature solid-phase crystallization  

E-Print Network [OSTI]

a grain size as large as 3.0 m deposited by disilane gas.3 TFTs made with channel lengths smaller than

Duffy, Thomas S.

314

Scientific Image Gallery from the Applied Superconductivity Center at the National High Magnetic Field Laboratory  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The Applied Superconductivity Center (ASC) is nested with the National High Magnetic Field Laboratory. Originally located at the University of Wisconsin, ASC transferred to NHMFL or Magnet Lab in 2003. ASC investigates both low and high-temperature materials. Focus areas include grain boundaries; coated conductors, BSCCO, and a new superconductor known as MgB2. The ASC Image Gallery provides graphs with text descriptions and single images with captions. The single images are organized into collections under scientific titles, such as MgB2 mentioned above. Click on the Videos link to see two 3D videos and be sure to check out the link to image collections at other organizations performing superconductivity research.

315

Growth, grain yield, and water use efficiency of rain-fed spring hybrid millet (Setaria italica) in plastic-mulched and unmulched fields  

Science Journals Connector (OSTI)

Abstract In order to analyze the effect of plastic mulching on water use efficiency of spring hybrid millet (Setaria italica), field experiments were conducted during the 2012 growing season, at an experimental station located in a semi-arid region of North China. Four treatments were applied: (i) plastic mulching of ridges and furrow sowing (T1), (ii) ridges and furrows without plastic mulch (T0), (iii) flat soil with plastic mulch (A1), and (iv) flat soil with no plastic mulch (A0) (control). Dynamics of soil moisture and soil temperature, together with crop growth, were monitored continuously in both mulched and unmulched fields. Changes in water consumption, soil temperature, and plant growth and development were analyzed. Results indicated that plastic mulching produced a 2–5-day advance in emergence of each growth stage. Soil temperature at 0–15 cm depth increased by 1.25 °C and 0.84 °C under mulched treatments A1 and T1, respectively, while soil water content at a depth of 0–10 cm increased by 1.42% and 1.29% in the same treatments. Leaf area index and plant height were also significantly higher in plastic-mulched treatments, except in later growth stages. Because plastic mulching improved tiller and ear numbers significantly, grain yield increased by 13.25% and 6.64%, in Al and T1 treatments, respectively. Water use efficiency at yield levels of plastic-mulched A1 and T1 plots was 24.44% and 3.6% higher than in unmulched flat and furrowed plots, respectively. Plastic mulching significantly reduced water consumption, retained soil water content, and increased soil temperature, to promote spring hybrid millet germination, and increased tiller numbers, and consequently, aboveground dry matter; it eventually significantly improved grain yield and water use efficiency. Plastic film mulching produced greater grain yield, water use efficiency, and benefits when used in flat planting patterns.

Baodi Dong; Mengyu Liu; Jingwei Jiang; Changhai Shi; Xiaoming Wang; Yunzhou Qiao; Yueyan Liu; Zhihai Zhao; Dongxiao li; Fuyan Si

2014-01-01T23:59:59.000Z

316

Digestion and rumen volatile fatty acid production by heifers fed reconstituted sorghum grain  

E-Print Network [OSTI]

ce oE M. STER OF SCIENCE January 1969 major Sub dace: Anbmal Science DIGESTION AND RlRCEN VOLATILE FATTY ACE) PRODUCTION BY REIZERS . "~ RECONSTITUTED SCRCEWI GRAIN A Tbests EDUARDO J. FA'is'I XM Approved as to s /le and oontent by...) Appendix 'cable Page Analyses of Variance of Volatile Patty Acids in liicrnno~es/Ill& liliter of Bmaen PluM Analyses of Variance of Nolo Percent Volatile Patty Acids in Ruraen gamples A9 CHAPTER I INTRODUCTION Sorghum grain i. s the principal...

Pantin, Eduardo Jose

1969-01-01T23:59:59.000Z

317

Microstructure and mechanical behavior of neutron irradiated ultrafine grained ferritic steel  

SciTech Connect (OSTI)

Neutron irradiation effects on ultra-fine grain (UFG) low carbon steel prepared by equal channel angular pressing (ECAP) has been examined. Counterpart samples with conventional grain (CG) sizes have been irradiated alongside with the UFG ones for comparison. Samples were irradiated in the Advanced Test Reactor (ATR) at Idaho National Laboratory (INL) to 1.24 dpa. Atom probe tomography revealed manganese, silicon-enriched clusters in both ECAP and CG steel after neutron irradiation. X-ray quantitative analysis showed that dislocation density in CG increased after irradiation. However, no significant change was observed in UFG steel revealing better radiation tolerance.

Ahmad Alsabbagh; Apu Sarkar; Brandon Miller; Jatuporn Burns; Leah Squires; Douglas Porter; James I. Cole; K. L. Murty

2014-10-01T23:59:59.000Z

318

Variability of Grain Arsenic Concentration and Speciation in Rice (Oryza sativa L.)  

E-Print Network [OSTI]

study was to evaluate a set of diverse rice cultivars, including both indica and japonica subspecies, for total grain-As (TGAs) and As-species concentrations in 2004, 2005, and 2007, on a native (moderate As-concentration) paddy soil and an adjacent...) and As-species concentrations, and their relationships with plant growth parameters, e.g., heading date, plant height, and yield were assessed. The cultivars exhibited a considerable range in both TGAs and grain-As species concentrations. In 2004...

Pillai, Tushara Raghvan

2011-02-22T23:59:59.000Z

319

Grain sorghum response to different flooding periods at the early boot stage  

E-Print Network [OSTI]

GRAIN SORGHUM RESPONSE TO DIFFERENT FLOODING PERIODS AT THE EARLY BOOT STAGE A Thesis by OSCAR ZOLEZZI DEL RIO Submitted to the Graduate College of Texas A)M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE May 1976 Major Subject: Agricultural Engineering GRAIN SORGHUM RESPONSE TO DIFFERENT FLOODING PERIODS AT THE EARLY BOOT STAGE A Thesis by OSCAR 2OLE22I DEL RIO Approved as to style and content by: airman o ommzttee Hea o Departme t e er...

Zolezzi del Rio, Oscar

2012-06-07T23:59:59.000Z

320

Port of Houston Intermodal Grain Transfer System and Market Area, 1976 - 1977.  

E-Print Network [OSTI]

. vessels loaded during the study period carried an aver- age of 730,685 bushels. PORT OF HOUSTON: INTERMODAL GRAIN TRANSFER SYSTEM AND MARKET A Stephen W. Fuller a1 Approximately 20 percent of the U.S. farm sector's income comes from agricultural... exports, and up to two- thirds of this revenue is generated from the sales of grains and soybeans (5). In view of producer dependency on foreign markets and the critical importance of the balance-of-payments situation, means of improving...

Fuller, Stephen W.; Paggi, Mechel S.

1978-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

Effect of a "major" dwarfing gene on grain yield and other agronomic traits in oat  

E-Print Network [OSTI]

EFFECT OF A "MAJOR" DWARFING GENE ON GRAIN YIELD AND OTHER AGRONOMIC TRAITS IN OAT A Thesis by JULIANO LUIZ DE ALMEIDA Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE August 1994 Major Subject: Plant Breeding EFFECT OF A "MAJOR" DWARFING GENE ON GRAIN YIELD AND OTHER AGRONOMIC TRAITS IN OAT A Thesis by JULIANO LUIZ DE ALMEIDA Submitted to Texas A&M University in partial fulfillment...

Almeida, Juliano Luiz de

2012-06-07T23:59:59.000Z

322

Meta-analysis in applied ecology  

Science Journals Connector (OSTI)

...varied with time, not space, suggesting that local...across species, sites, space and time. Applied ecologists...August 2009). An initial library of more than 500 analyses...pointers from medicine and public health. Conserv. Biol...effects across species, space and time, but exploring...

2010-01-01T23:59:59.000Z

323

APPLIED MATHEMATICS & COMPUTATIONAL SCI. (AS) {AMCS}  

E-Print Network [OSTI]

APPLIED MATHEMATICS & COMPUTATIONAL SCI. (AS) {AMCS} 510. (MATH410) Complex Analysis. 520. (MATH420. (MATH432) Game Theory. 567. (BE 567) Mathematical and Computational Modeling of Biological Systems. (M) Prerequisite(s): BE 324 and BE 350. This is an introductory course in mathematical biology. The emphasis

Carpick, Robert W.

324

Uniform insulation applied-B ion diode  

DOE Patents [OSTI]

An applied-B field extraction ion diode has uniform insulation over an anode surface for increased efficiency. When the uniform insulation is accomplished with anode coils, and a charge-exchange foil is properly placed, the ions may be focused at a point on the z axis.

Seidel, David B. (Albuquerque, NM); Slutz, Stephen A. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

325

Applying Knowledge Management techniques for building corporate  

E-Print Network [OSTI]

Applying Knowledge Management techniques for building corporate memories Ian Watson AI-CBR Computer-based reasoning and knowledge management... www.ai-cbr.org ...coincidentally I've just written a book about this... ...plug the book!!! www.ai-cbr.org Outline · Talk about ­ Knowledge ­ Knowledge management ­ Why CBR

Watson, Ian

326

Applying Quantitative Marketing Techniques to the Internet  

E-Print Network [OSTI]

. Blattberg and Deighton [1991] laid out a good framework for Internet marketing in their articleApplying Quantitative Marketing Techniques to the Internet by Alan L. Montgomery Carnegie Mellon with clickstream data. I illustrate these four modeling techniques and discuss their potential for solving Internet

Faloutsos, Christos

327

Faculty of Engineering Bachelor of Applied Science  

E-Print Network [OSTI]

and Environmental Engineering; Electrical Engineering; Industrial Engineering and Mechanical, Automotive & MaterialsFaculty of Engineering Bachelor of Applied Science in Engineering The demands on professional engineers around the world are increasing in terms of what they must address: our society must confront

328

Applying Global Optimization in Structural Engineering  

E-Print Network [OSTI]

structure Dynamic loading Challenges "Dwarfing visitors, the 70-foot-tall Corliss steam engine powered steam engine in the world. Of engines like the Corliss, William Dean Howells wrote, 'In these thingsApplying Global Optimization in Structural Engineering Dr. George F. Corliss Electrical

329

NONLOCAL COMPUTATIONAL METHODS APPLIED TO COMPOSITE STRUCTURES  

E-Print Network [OSTI]

to model the degradation of organic or ceramic matrix composites structures (OMC or CMC) even under simple description of heterogeneous materia ls like organic or ceramic matrix composites. New sophisticatedNONLOCAL COMPUTATIONAL METHODS APPLIED TO COMPOSITE STRUCTURES N. GERMAIN1, F. FEYEL1 and J. BESSON

Boyer, Edmond

330

Building on a Base: Applying Physics Education  

E-Print Network [OSTI]

Building on a Base: Applying Physics Education Research to Physics Teaching S.J. Pollock CU Boulder Concept Inventory (FCI) R. Hake, "...A six-thousand-student survey..." AJP 66, 64-74 (`98). = post. Pre R. App. Pre R. Care. Pre Math Pre Effort Pre Skept. Pre Overall Post Indep. Post Coher. Post Conc

Colorado at Boulder, University of

331

APPLYING THE ZACHMAN FRAMEWORK DIMENSIONS TO SUPPORT  

E-Print Network [OSTI]

APPLYING THE ZACHMAN FRAMEWORK DIMENSIONS TO SUPPORT BUSINESS PROCESS MODELING Pedro Sousa123.caetano, jose.tribolet}@inov.pt Business process models assist business and information technology managers with disparate blueprints for the same process and no formal procedures to sort out their relevance. In fact

332

Does Bertrand's rule apply to macronutrients?  

Science Journals Connector (OSTI)

...gastrointestinal system. In Handbook of physiology. Section 13 comparative...Christensen2001Optimal diet theory: when does it work, and when and why does it fail?. Anim. Behav. 61...Nutr. Soc. 60, 145-156. Does Bertrand's rule apply to macronutrients...

2005-01-01T23:59:59.000Z

333

Study on grain boundary character and strain distribution of intergranular cracking in the CGHAZ of T23 steel  

SciTech Connect (OSTI)

Intergranular reheat cracking in the coarse-grained heat-affected zone of T23 steel was produced by strain to fracture tests on a Gleeble 3500 thermal–mechanical simulator. Then the grain boundary character, as well as the strain distribution after reheat crack propagation, was studied by electron backscatter diffraction technique. The results showed that incoherent ?3 boundaries were seldom found on the prior austenite grain boundaries. Therefore, only the type of random high-angle boundaries played a crucial role in the intergranular cracking. Microstructurally cavities and small cracks were preferentially initiated from high-angle grain boundaries. Low-angle grain boundaries and high-angle ones with misorientation angles less than 15° were more resistant to the cracking. More importantly, the fraction of high-angle grain boundaries increased with the plastic strain induced by both temperature gradient and stress in the coarse-grained heat-affected zone, which contributed to the crack initiation and propagation. Furthermore, the strain distributions in the vicinity of cavities and cracks revealed the accommodation processes of plastic deformation during stress relaxation. It also reflected the strength differences between grain interior and grain boundary at different heat-treated temperatures, which had a large influence on the cracking mechanism. - Highlights: • The coincidence site lattice boundaries play little role in the reheat cracking. • Cavity and crack occur at high-angle grain boundaries rather than low-angle ones. • The strain leads low-angle grain boundaries to transform to high-angle ones. • Strain distribution differs for cavity and crack zones at different temperatures.

Jin, Y.J.; Lu, H., E-mail: shweld@sjtu.edu.cn; Yu, C.; Xu, J.J.

2013-10-15T23:59:59.000Z

334

We are not equally negative: fine-grained labeling for multimedia event detection  

Science Journals Connector (OSTI)

Multimedia event detection (MED) is an effective technique for video indexing and retrieval. Current classifier training for MED treats the negative videos equally. However, many negative videos may resemble the positive videos in different degrees. ... Keywords: attribute representation, attribute selection, fine-grained labeling, multi-source attributes, multimedia event detection (MED)

Zhigang Ma; Yi Yang; Zhongwen Xu; Nicu Sebe; Alexander G. Hauptmann

2013-10-01T23:59:59.000Z

335

Neutron diffraction study of the contribution of grain contacts to nonlinear stress-strain behavior  

E-Print Network [OSTI]

Neutron diffraction study of the contribution of grain contacts to nonlinear stress-strain behavior performed simultaneous neutron diffraction and quasi-static loading experiments on a selection of rocks to experimentally isolate the response of these contact regions. Neutron diffraction measures strain in the lattice

336

Grooving of a grain boundary by evaporationcondensation below the roughening transition  

E-Print Network [OSTI]

Grooving of a grain boundary by evaporation­condensation below the roughening transition H. A for the case that the evolution occurs below the thermodynamic roughening transition by evaporation to the classical results valid above the thermodynamic roughening temperature. In addition, the approximate

Margetis, Dionisios

337

Microstructure of Josephson junctions: Effect on supercurrent transport in YBCO grain boundary and barrier layer junctions  

SciTech Connect (OSTI)

The electric transport of high-temperature superconductors, such as YBa{sub 2}Cu{sub 3}O{sub 7{minus}x} (YBCO), can be strongly restricted by the presence of high-angle grain boundaries (GB). This weak-link behavior is governed by the macroscopic GB geometry and the microscopic grain boundary structure and composition at the atomic level. Whereas grain boundaries present a considerable impediment to high current applications of high T{sub c} materials, there is considerable commercial interest in exploiting the weak-link-nature of grain boundaries for the design of microelectronic devices, such as superconducting quantum interference devices (SQUIDs). The Josephson junctions which form the basis of this technology can also be formed by introducing artificial barriers into the superconductor. The authors have examined both types of Josephson junctions by EM techniques in an effort to understand the connection between microstructure/chemistry and electrical transport properties. This knowledge is a valuable resource for the design and production of improved devices.

Merkle, K.L.; Huang, Y.

1998-01-01T23:59:59.000Z

338

Equal-channel angular pressing of commercial aluminum alloys: Grain refinement, thermal stability and tensile properties  

SciTech Connect (OSTI)

Using equal-channel angular (ECA) pressing at room temperature, the grain sizes of six different commercial aluminum-based alloys (1100, 2024, 3004, 5083, 6061, and 7075) were reduced to within the submicrometer range. These grains were reasonably stable up to annealing temperatures of {approximately} 200 C and the submicrometer grains were retained in the 2024 and 7075 alloys to annealing temperatures of 300 C. Tensile testing after ECA pressing through a single pass, equivalent to the introduction of a strain of {approximately}1, showed there is a significant increase in the values of the 0.2 pct proof stress and the ultimate tensile stress (UTS) for each alloy with a corresponding reduction in the elongations to failure. It is demonstrated that the magnitudes of these stresses scale with the square rot of the Mg content in each alloy. Similar values for the proof stresses and the UTS were attained at the same equivalent strains in samples subjected to cold rolling, but the elongations to failure were higher after ECA pressing to equivalent strains >1 because of the introduction of a very small grain size. Detailed results for the 1100 and 3004 alloys show good agreement with the standard Hall-Petch relationship.

Horita, Zenji; Fujinami, Takayoshi; Nemoto, Minoru; Langdon, T.G.

2000-03-01T23:59:59.000Z

339

Heavy Element Abundances in Presolar Silicon Carbide Grains from Low-Metallicity AGB Stars  

E-Print Network [OSTI]

Heavy Element Abundances in Presolar Silicon Carbide Grains from Low-Metallicity AGB Stars Peter explosions. Silicon carbide is the best studied presolar mineral. Based on its isotopic compositions the identified presolar minerals are diamond, silicon carbide (SiC), graphite, silicon nitride (Si3N4), corundum

340

The 2007/08 Iowa Grain and Biofuel Flow Study: A Survey Report  

E-Print Network [OSTI]

by the expanding production of biofuels, the linkage between the agricultural and energy markets is evolvingThe 2007/08 Iowa Grain and Biofuel Flow Study: A Survey Report Tun-Hsiang (Edward) Yu and Chad Hart: www.card.iastate.edu. Permission is granted to excerpt or quote this information with appropriate

Grissino-Mayer, Henri D.

Note: This page contains sample records for the topic "grain cxs applied" 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

CHP and CHPsim: A Language and Simulator for Fine-Grain Distributed Computation  

E-Print Network [OSTI]

1 CHP and CHPsim: A Language and Simulator for Fine-Grain Distributed Computation Alain J. Martin Abstract--This paper describes a complete and stable version of CHP and the simulator CHPsim. CHP partial versions of the language are already widely used, but CHP has never been presented as a complete

Martin, Alain

342

Dust grains and the structure of steady C-type magnetohydrodynamic shock waves in molecular clouds  

Science Journals Connector (OSTI)

......primarily through the emission of radiation in molecular rotational and vibrational...cosmic ray ionization and recombination occuring in the gas phase or on grain surfaces...demonstrated that the shocks could be formed `naturally' and were stable (Wu 1990). An examination......

Mark Wardle

1998-08-01T23:59:59.000Z

343

Micromechanics of Hydrate Dissociation in Marine Sediments by Grain-Scale Simulations  

E-Print Network [OSTI]

SPE 114223 Micromechanics of Hydrate Dissociation in Marine Sediments by Grain-Scale Simulations dissociation on the strength of hydrate-bearing sediments. Dissociation of gas-hydrates in marine sediments pressure increase, this process reduces the stiffness of the sediments, which may fracture or be flu

Patzek, Tadeusz W.

344

Determination of Fumonisins in Milled Corn Grains Using HPLC-MS  

Science Journals Connector (OSTI)

......No. 1126/2007 (for milling fractions of maize with...m1,400 g/kg and for milling fractions of maize with...of Fumonisins in Milled Corn Grains Using HPLCMS Vlastimil...because the aerosol was wet and caused discharges...samples of grounded maize corn. The mycotoxin content......

Vlastimil Dohnal; Alena Jezková; Ivana Polisenská; Kamil Kuca

2010-09-01T23:59:59.000Z

345

Feeding Value of Wet Sorghum Distillers Grains for Growing and Finishing Beef Cattle  

E-Print Network [OSTI]

production in the southern High Plains. Wet distillers grains represent a unique feed ingredient for cattle feedlots in the southern High Plains that possesses novel chemical and physical attributes, compared in the southern High Plains are needed to allow cattle feeders to ac- curately assess the economic implications

346

Grain refinement of cast niobium via equal channel angular extrusion/annealing  

E-Print Network [OSTI]

???????????????????????????????... 4 II LITERATURE REVIEW?????????????????????????.......... 6 A. Niobium Properties and Applications????????????????????? 6 B. Niobium Based Type II Superconductors?????????????????.......... 6 1. Bronze Method.... Average Grain Diameter and Standard Deviation of Panoramic Calculations?????? 148 1 CHAPTER I INTRODUCTION A. Motivation Type II superconductors typically come in the form of composite wires consisting...

Bryant, Don O.

2007-04-25T23:59:59.000Z

347

Crystallography of Interfaces and Grain Size Distributions in Sr-Doped LaMnO3  

E-Print Network [OSTI]

Crystallography of Interfaces and Grain Size Distributions in Sr-Doped LaMnO3 Qinyuan Liu,§ Sudip systems are similar. I. Introduction HIGH-TEMPERATURE solid oxide fuel cells (SOFCs) offer highly efficient, clean, direct conversion of chemical to electrical energy.1 SOFC performance is dictated

Rohrer, Gregory S.

348

Grain orientation measurement of passivated aluminum interconnectsby x-ray micro diffraction  

SciTech Connect (OSTI)

The crystallographic orientations of individual grains in apassivated aluminum interconnect line of 0.7-mu m width were investigatedby using an incidentwhite x-ray microbeam at the Advanced Light Source,Berkeley National Laboratory. Intergrain orientation mapping was obtainedwith about 0.05o sensitivity by the micro Laue diffractiontechnique.

Chang, Chang-Hwan; Valek, B.C.; Padmore,H.A.; MacDowell, A.A.; Celestre, R.; Marieb, T.; Bravman, J.C.; Koo, Y.M.; Patel, J.R.

1999-07-01T23:59:59.000Z

349

Fine-Grain Access Control for Securing Shared Resources in Computational Grids*  

E-Print Network [OSTI]

Fine-Grain Access Control for Securing Shared Resources in Computational Grids* Abstract, grid environments, grid security, Unix accessmodel. providing an active enforcement of the security. Introduction Grid environments of the future will require an abil- ity to provide a secure execution

Lee, Ruby B.

350

Coarse-grained versus atomistic simulations: realistic interaction free energies for real proteins  

Science Journals Connector (OSTI)

......simulated, the number of water molecules in that volume...GROMACS simulation engine (Pool et al., 2012) that...the stable complexes (Pool and Bolhuis, 2010...Guharoy M , Chakrabarti P. Conservation and relative importance...Coarse-grained molecular models of water: a review. Mol. Simul......

Ali May; René Pool; Erik van Dijk; Jochem Bijlard; Sanne Abeln; Jaap Heringa; K. Anton Feenstra

2014-02-01T23:59:59.000Z

351

THE IMPORTANCE OF THE GAS-GRAIN INTERACTION T. J. Millar  

E-Print Network [OSTI]

of interstellar grains can be described by a power-law: n(a)da / a 3:5 da and combining the op- tical properties atoms and taking up 10% of the total car- bon budget. These molecules, called polycyclic aromatic of water, but con- tain substantial components of methanol, ca

Millar, Tom

352

Fine-grained pitch processing of music and speech in congenital amusia  

E-Print Network [OSTI]

Fine-grained pitch processing of music and speech in congenital amusia Barbara Tillmanna) CNRS, UMR is a lifelong disorder of music processing that has been ascribed to impaired pitch perception and memory. The present study tested a large group of amusics (n ¼ 17) and pro- vided evidence that their pitch deficit

353

Spatially Resolved Mapping of Electrical Conductivity across Individual Domain (Grain) Boundaries in Graphene  

E-Print Network [OSTI]

in Graphene Kendal W. Clark,1 X.-G. Zhang,1 Ivan V. Vlassiouk,2 Guowei He,3 Randall M. Feenstra,3 and An, USA * Corresponding author: apli@ornl.gov Abstract All large-scale graphene films contain extended topological defects dividing graphene into domains or grains. Here, we spatially map electronic transport near

Feenstra, Randall

354

Carbide/nitride grain refined rare earth-iron-boron permanent magnet and method of making  

DOE Patents [OSTI]

A method of making a permanent magnet is disclosed wherein (1) a melt is formed having a base alloy composition comprising RE, Fe and/or Co, and B (where RE is one or more rare earth elements) and (2) TR (where TR is a transition metal selected from at least one of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, and Al) and at least one of C and N are provided in the base alloy composition melt in substantially stoichiometric amounts to form a thermodynamically stable compound (e.g. TR carbide, nitride or carbonitride). The melt is rapidly solidified in a manner to form particulates having a substantially amorphous (metallic glass) structure and a dispersion of primary TRC, TRN and/or TRC/N precipitates. The amorphous particulates are heated above the crystallization temperature of the base alloy composition to nucleate and grow a hard magnetic phase to an optimum grain size and to form secondary TRC, TRN and/or TRC/N precipitates dispersed at grain boundaries. The crystallized particulates are consolidated at an elevated temperature to form a shape. During elevated temperature consolidation, the primary and secondary precipitates act to pin the grain boundaries and minimize deleterious grain growth that is harmful to magnetic properties. 33 figs.

McCallum, R.W.; Branagan, D.J.

1996-01-23T23:59:59.000Z

355

Identification of characteristic protein folding channels in a coarse-grained hydrophobic-polar peptide model  

E-Print Network [OSTI]

Identification of characteristic protein folding channels in a coarse-grained hydrophobic of protein folding is one of the major challenges of modern interdisciplinary science. Proteins are linear simulations of protein folding are difficult, mainly for two reasons. Firstly, the folding process is so slow

Bachmann, Michael

356

Effects of Grain Morphology and Impurities on the Infrared Spectra of Silicon Carbide Particles  

E-Print Network [OSTI]

In this paper we demonstrate that distinguishing between the polytypes of silicon carbide by means of infrared features in small-grain spectra is impossible. Therefore, the infrared spectra of carbon stars, unfortunately, do not provide a means for drawing comparisons between the crystal structures of grains condensed in these environments and found in meteorites. This is proven first by comparing theoretical band profiles calculated for ellipsoidal particles, which show clearly a strong dependence on the axis ratio of the ellipsoids but negligible differences for the two most common polytypes. Second, spectra measured on submicron particle samples in the laboratory do not show any obvious correlation of band position or shape to the polytype. However, we demonstrate by measurements on SiC whiskers that grain shape is able to determine the spectrum completely. A further strong systematic influence on the band profile can be exerted by plasmon-phonon coupling due to conductivity of the SiC material. The latter fact probably is responsible for the confusion in the astronomical literature about spectral properties of SiC grains. We show that, although the conductivity seems to be a common property of many SiC laboratory samples, it is, however, independent of the polytype.

H. Mutschke; Th. Henning; D. Clément; A. C. Andersen

2001-11-15T23:59:59.000Z

357

Multiple scattering of polarized radiation by non-spherical grains: first results  

E-Print Network [OSTI]

We present the first numerical radiative transfer simulation of multiple light scattering in dust configurations containing aligned non-spherical (spheroidal) dust grains. Such models are especially important if one wants to explain the circular polarization of light, observed in a variety of astronomical objects. The radiative transfer problem is solved on the basis of the Monte Carlo method. Test simulations, confirming the correct numerical implementation of the scattering mechanism, are presented. As a first application, we investigate the linear and circular polarization of light coming from a spherical circumstellar shell. This shell contains perfectly aligned prolate or oblate spheroidal grains. The most remarkable features of the simulated linear polarization maps are so-called polarization null points where the reversal of polarization occurs. They appear in the case when the grain alignment axis is perpendicular to the line of sight. The maps of circular polarization have a sector-like structure with maxima at the ends of lines inclined to the grain alignment axis by $\\pm 45\\degr$.

S. Wolf; N. V. Voshchinnikov; Th. Henning

2002-01-31T23:59:59.000Z

358

Estimating quality factor and mean grain size of sediments from high-resolution marine seismic data  

E-Print Network [OSTI]

30 m of unconsolidated marine sediments. Our spectral-ratio technique does not require assumptions-resolution seismic-reflection data, and shows how such estimates can be related to mean grain sizes of unconsolidated for intrinsic atten- uation in saturated, unconsolidated marine sediments. Biot-Stoll Biot, 1956a, 1956b; Stoll

National Oceanography Centre Southampton

359

Root Morphological and Physiological Bases to Understand Genotypic Control of Mineral Acquisition in Rice Grains  

E-Print Network [OSTI]

available to plants. The objective of this study was to identify if a representative Malaysian genotype showed a root-localized acid-tolerance mechanism which thus enabled it to efficiently mine Mo under acidic conditions. 3. Root traits of high grain...

Chittoori, Ratnaprabha 1982-

2012-11-28T23:59:59.000Z

360

Characterization of grain boundary conductivity of spin-sprayed ferrites using scanning microwave microscope  

SciTech Connect (OSTI)

Grain boundary electrical conductivity of ferrite materials has been characterized using scanning microwave microscope. Structural, electrical, and magnetic properties of Fe{sub 3}O{sub 4} spin-sprayed thin films onto glass substrates for different length of growth times were investigated using a scanning microwave microscope, an atomic force microscope, a four-point probe measurement, and a made in house transmission line based magnetic permeameter. The real part of the magnetic permeability shows almost constant between 10 and 300?MHz. As the Fe{sub 3}O{sub 4} film thickness increases, the grain size becomes larger, leading to a higher DC conductivity. However, the loss in the Fe{sub 3}O{sub 4} films at high frequency does not increase correspondingly. By measuring the reflection coefficient s{sub 11} from the scanning microwave microscope, it turns out that the grain boundaries of the Fe{sub 3}O{sub 4} films exhibit higher electric conductivity than the grains, which contributes loss at radio frequencies. This result will provide guidance for further improvement of low loss ferrite materials for high frequency applications.

Myers, J.; Nicodemus, T.; Zhuang, Y., E-mail: yan.zhuang@wright.edu [Department of Electrical Engineering, Wright State University, Dayton, Ohio 45435 (United States); Watanabe, T.; Matsushita, N. [Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama (Japan); Yamaguchi, M. [Department of Electrical Engineering, Tohoku University, Sendai 980-8579 (Japan)

2014-05-07T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

EFFECT OF VISCOUS GRAIN BRIDGING ON CYCLIC FATIGUE-CRACK GROWTH IN MONOLITHIC CERAMICS  

E-Print Network [OSTI]

, toughness, creep, and subcritical crack growth [1± 10]. Under quasi-static loading, subcritical crack growthEFFECT OF VISCOUS GRAIN BRIDGING ON CYCLIC FATIGUE-CRACK GROWTH IN MONOLITHIC CERAMICS AT ELEVATED allow for consistent crack-growth monitoring in these materials at high temperatures, and even

Ritchie, Robert

362

Fine-Grained Dynamic Voltage and Frequency Scaling for Precise Energy and Performance  

E-Print Network [OSTI]

Monitoring Unit (PMU) ! Proposed Fine-grained DVFS Policy ! Experimental Results ! Conclusion #12;2 Energy (memory work) " T = Tonchip + Toffchip ! Tonchip : varies with the CPU frequency " Stalls due to data Monitoring Unit (PMU) ! PMU on the XScale processor chip can report up to 20 different dynamic events during

Pedram, Massoud

363

Spatially selective single-grain silicon films induced by hydrogen plasma seeding  

E-Print Network [OSTI]

Spatially selective single-grain silicon films induced by hydrogen plasma seeding Xiang-Zheng Boa) Department of Electrical Engineering, Center for Photonics and Optoelectronic Materials, Princeton University, Princeton, New Jersey 08544 Nan Yao Princeton Materials Institute, Princeton University, Princeton, New

364

Atomic Di usion from a Material Surface into a Grain Boundary  

E-Print Network [OSTI]

was #12;rst reduced to an eigen- value problem with a 1-d-integro-di#11;erential operator from the surface of a material into a semi-in#12;nite grain boundary orthogonal to the surface in a strip and then to a Riemann-Hilbert boundary- value problem for an open contour that admits solution

Bath, University of

365

Roadmap: Technical and Applied Studies -Computer Technology Networking -Bachelor of Technical and Applied Studies  

E-Print Network [OSTI]

Roadmap: Technical and Applied Studies - Computer Technology Networking - Bachelor of Technical-May-14/JSK This roadmap is a recommended semester-by-semester plan of study for this major. However or individualized specialization selected in consultation with an advisor. #12;Roadmap: Technical and Applied

Khan, Javed I.

366

B.S. Applied Physics Program B.S. in Applied Physics  

E-Print Network [OSTI]

B.S. Applied Physics Program B.S. in Applied Physics Department(s) Physics and Astronomy College and magnetism 3. understanding of thermodynamics 4. understanding of modern physics 5. ability to perform modern laboratory experiments 6. ability to perform an independent physics research project 7. ability

Hemmers, Oliver

367

Correlation Between Grain and Grain-Boundary Critical Current Densities in ex situ Coated Conductors with Variable YBa2Cu3O7- ? Layer Thickness  

SciTech Connect (OSTI)

The dependence of the percolative critical current density at low magnetic fields on YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} (YBCO) layer thickness is studied by comparing grain, J{sub c}{sup G}, and grain-boundary, J{sub c}{sup GB}, critical current densities for a series of ex situ processed YBCO films on a RABiTS template. Both critical current densities decrease as a function of thickness and the values of J{sub c}{sup G} and J{sub c}{sup GB} show a clear correlation which suggests the existence of an interaction between Abrikosov-Josephson vortices on the grain boundaries and Abrikosov vortices in the bulk of the grains. This opens the possibility to improve J{sub c}{sup GB} by optimizing the pinning capabilities of the grains.

Palau, A. [ICMAB, Barcelona, Spain; Puig, T. [ICMAB, Barcelona, Spain; Obradors, X. [ICMAB, Barcelona, Spain; Feenstra, Roeland [ORNL; Gapud, Albert Agcaoili [ORNL

2006-01-01T23:59:59.000Z

368

Grain Growth Behavior, Tensile Impact Ductility, and Weldability of Cerium-Doped Iridium Alloys  

SciTech Connect (OSTI)

An iridium alloy doped with small amounts of cerium and thorium is being developed as a potential replacement for the iridium-based DOP-26 alloy (doped with thorium only) that is currently used by the National Aeronautics and Space Administration (NASA) for cladding and post-impact containment of the radioactive fuel in radioisotope thermoelectric generator (RTG) heat sources which provide electric power for interplanetary spacecraft. This report summarizes results of studies conducted to date under the Iridium Alloy Characterization and Development subtask of the Radioisotope Power System Materials Production and Technology Program to characterize the properties of the iridium-based alloy (designated as DOP-40) containing both cerium and thorium. Included within this report are data on grain growth of sheet material in vacuum and low-pressure oxygen environments, grain growth in vacuum of the clad vent set cup material, weldability, and the effect of grain size and test temperature on tensile properties. Where applicable, data for the DOP-26 alloy are included for comparison. Both grain size and grain-boundary cohesion affect the ductility of iridium alloys. In this study it was found that cerium and thorium, when added together, refine grain size more effectively than when thorium is added by itself (especially at high temperatures). In addition, the effect of cerium additions on grain-boundary cohesion is similar to that of thorium. Mechanical testing at both low ({approx} 10{sup -3}s{sup -1}) and high ({approx} 10{sup -3}s{sup -1}) strain rates showed that the Ce/Th-doped alloys have tensile ductilities that are as good or better than the DOP-26 alloy. The general conclusion from these studies is that cerium can be used to replace some of the radioactive thorium currently used in DOP-26 while maintaining or improving its metallurgical properties. The current DOP-26 alloy meets all requirements for cladding the radioactive fuel in the RTG heat source, but the new DOP-40 alloy could serve as a back-up alloy to be used if the costs of refining, handling, and transporting DOP-26 become prohibitively high.

McKamey, C.G.

2002-05-28T23:59:59.000Z

369

Silicon carbide grains of type C provide evidence for the production of the unstable isotope $^{32}$Si in supernovae  

E-Print Network [OSTI]

Carbon-rich grains are observed to condense in the ejecta of recent core-collapse supernovae, within a year after the explosion. Silicon carbide grains of type X are C-rich grains with isotpic signatures of explosive supernova nucleosynthesis have been found in primitive meteorites. Much rarer silicon carbide grains of type C are a special sub-group of SiC grains from supernovae. They show peculiar abundance signatures for Si and S, isotopically heavy Si and isotopically light S, which appear to to be in disagreement with model predictions. We propose that C grains are formed mostly from C-rich stellar material exposed to lower SN shock temperatures than the more common type X grains. In this scenario, extreme $^{32}$S enrichments observed in C grains may be explained by the presence of short-lived $^{32}$Si ($\\tau$$_{1/2}$ = 153 years) in the ejecta, produced by neutron capture processes starting from the stable Si isotopes. No mixing from deeper Si-rich material and/or fractionation of Si from S due to mole...

Pignatari, M; Bertolli, M G; Trappitsch, R; Hoppe, P; Rauscher, T; Fryer, C; Herwig, F; Hirschi, R; Timmes, F X; Thielemann, F -K

2013-01-01T23:59:59.000Z

370

Temperature dependence of magnetic behaviour in very fine grained, spark plasma sintered NiCuZn Ferrites  

E-Print Network [OSTI]

with wide bandwidth up to 30MHz. In this paper the frequency range of 100 kHz to 5 MHz is investigated the magnetization processes taking place in these nano grained materials, in the frequency interval of 100kHz to 5Temperature dependence of magnetic behaviour in very fine grained, spark plasma sintered Ni

Boyer, Edmond

371

Effect of sediment pulse grain size on sediment transport rates and bed mobility in gravel bed rivers  

E-Print Network [OSTI]

Effect of sediment pulse grain size on sediment transport rates and bed mobility in gravel bed] Sediment supply to gravel bed river channels often takes the form of episodic sediment pulses, and there is considerable interest in introducing sediment pulses in stream restorations to alter bed surface grain size

Venditti, Jeremy G.

372

Effect of microstructure, grain size, and rare earth doping on the electrorheological performance of nanosized particle materials  

E-Print Network [OSTI]

and grain sizes were prepared by doping TiO2 or ZrO2 with rare earth (RE) elements, and by changingEffect of microstructure, grain size, and rare earth doping on the electrorheological performance-Hua Zhang,c Shu-Mei Chen,d Rui-Li Huange and Song Gaoa a State Key Laboratory of Rare Earth Materials

Gao, Song

373

Fundamental & Applied Bioenergy | Clean Energy | ORNL  

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

Bioenergy Bioenergy SHARE Fundamental and Applied Bioenergy Steven Brown (left) and Shihui Yang have developed a microbial strain with an improved ability to convert wood products to biofuel as part of research within the DOE BioEnergy Science Center.Source: ORNL News article ORNL researchers are investigating the biological mechanisms underlying production of biofuels so that those mechanisms can be improved and used to develop a new generation of efficient bioenergy strategies that will reduce U.S. dependence on foreign oil and help curb carbon emissions. Fundamental and applied bioenergy research at ORNL includes studies conducted within the BioEnergy Science Center and the following research areas: Bioconversion Science and Technology Plant-Microbe Interfaces

374

Apply for Beam Time | Advanced Photon Source  

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

Apply for Beam Time Apply for Beam Time NEXT PROPOSAL DEADLINE: March 7, 2014 @ 11:59 PM (Chicago time) Submit Proposal » SEE ALSO: Calendar: deadlines, run & review dates Help Page: frequently asked questions, tips for success, common errors, blank forms, instructions Review Criteria Sectors Directory: check CAT websites for info about managed beam time The Run 2014-2 proposal submission deadline is 11:59 p.m. (Chicago time) March 7, 2014. The system will open to accept proposals beginning December 20, 2013. NEW USERS: to avoid delays and to make the most of your time on site, read Become a User. You must register as a user and receive a badge number before submitting a proposal. About the Beam Time Request Process All beam time at the APS must be requested each cycle through the web-based

375

Title Page Applied and Environmental Microbiology 1  

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

Applied and Environmental Microbiology 1 Applied and Environmental Microbiology 1 2 Title Natural Competence in Thermoanaerobacter and Thermoanaerobacterium Species 3 Running Title Thermonanerobacter Natural Competence 4 5 Authors and Affiliations 6 A. Joe Shaw 1,2 , David A. Hogsett 1 , Lee R. Lynd 1,2,3 * 7 1 Mascoma Corporation, Lebanon, NH 03766 8 2 Thayer School of Engineering, Dartmouth College, Hanover, NH 03755 9 3 Department of Biological Sciences, Dartmouth College, Hanover, NH 03755 10 11 Corresponding Author 12 Lee R. Lynd 13 Thayer School of Engineering, Dartmouth College, Hanover, NH 03755 14 Phone: 603.646.2231 15 Email: lee.lynd@dartmouth.edu 16 17 18 19 20 21 22 23 Copyright © 2010, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved.

376

Slip Line Field Applied To Deep Drawing  

Science Journals Connector (OSTI)

Slip Line Field is a numerical method applied for modelling plane?strain processes. This method has been successfully checked properly for sheet drawing. Flange deformation in deep drawing is considered without change in thickness. A drawing mechanical test has been developed in order to reproduce the flange stresses state in sheet strips with the rolling direction selected. The fundamentals of this test and some experimental results obtained from it have been presented previously in different Congresses. In this work an algorithm based on SLF has been implemented and theoretical results evaluated for different conditions. The algorithm have been applied to a mild DDQ steel and to a DDQ AISI 304 stainless steel. Theoretical and experimental results are compared. A good concordance in them has been found out under some conditions. One of the most important aspects is that it must not be considered tensile material properties but a modified behavior under multiaxial conditions.

V. Miguel; J. Benet; J. Coello; A. Calatayud; A. Martínez

2007-01-01T23:59:59.000Z

377

CURVED WALLS: GRAIN GROWTH, SETTLING, AND COMPOSITION PATTERNS IN T TAURI DISK DUST SUBLIMATION FRONTS  

SciTech Connect (OSTI)

The dust sublimation walls of disks around T Tauri stars represent a directly observable cross-section through the disk atmosphere and midplane. Their emission properties can probe the grain size distribution and composition of the innermost regions of the disk, where terrestrial planets form. Here we calculate the inner dust sublimation wall properties for four classical T Tauri stars with a narrow range of spectral types and inclination angles and a wide range of mass accretion rates to determine the extent to which the walls are radially curved. Best fits to the near- and mid-IR excesses are found for curved, two-layer walls in which the lower layer contains larger, hotter, amorphous pyroxene grains with Mg/(Mg+Fe) = 0.6 and the upper layer contains submicron, cooler, mixed amorphous olivine and forsterite grains. As the mass accretion rates decrease from 10{sup –8} to 10{sup –10} M{sub ?} yr{sup –1}, the maximum grain size in the lower layer decreases from ?3 to 0.5 ?m. We attribute this to a decrease in fragmentation and turbulent support for micron-sized grains with decreasing viscous heating. The atmosphere of these disks is depleted of dust with dust-gas mass ratios 1 × 10{sup –4} of the interstellar medium (ISM) value, while the midplane is enhanced to eight times the ISM value. For all accretion rates, the wall contributes at least half of the flux in the optically thin 10 ?m silicate feature. Finally, we find evidence for an iron gradient in the disk, suggestive of that found in our solar system.

McClure, M. K.; Calvet, N.; Hartmann, L.; Ingleby, L. [Department of Astronomy, The University of Michigan, 500 Church Street, 830 Dennison Building., Ann Arbor, MI 48109 (United States); D'Alessio, P. [Centro de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México, 58089 Morelia, Michoacán (Mexico); Espaillat, C. [Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Sargent, B. [Center for Imaging Science and Laboratory for Multiwavelength Astrophysics, Rochester Institute of Technology, 54 Lomb Memorial Drive, Rochester, NY 14623 (United States); Watson, D. M. [Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627 (United States); Hernández, J., E-mail: melisma@umich.edu, E-mail: ncalvet@umich.edu, E-mail: lhartm@umich.edu, E-mail: lingleby@umich.edu, E-mail: p.dalessio@astrosmo.unam.mx, E-mail: cespaillat@cfa.harvard.edu, E-mail: baspci@rit.edu, E-mail: dmw@pas.rochester.edu, E-mail: hernandj@cida.ve [Centro de Investigaciones de Astronomía (CIDA), Mérida 5101-A (Venezuela, Bolivarian Republic of)

2013-10-01T23:59:59.000Z

378

Apply process integration to waste minimization  

SciTech Connect (OSTI)

This article presents a systematic method for identifying process modifications to minimize waste generation. It is based on the hierarchical decision procedure, which provides a framework for identifying process improvement options and evaluating heat and mass integration opportunities. The article deals specifically with an adaptation of the hierarchical decision approach for use in pollution abatement applications. The article also illustrates the use of the technique by applying it to the fluid catalytic cracking unit at Amoco Oil Co.'s Yorktown, VA, refinery.

Rossiter, A.P.; Spriggs, H.D. (Linnhoff March, Inc., Leesburg, VA (United States)); Klee, H. Jr. (Amoco Corp., Chicago, IL (United States))

1993-01-01T23:59:59.000Z

379

Applying Calibration to Improve Uncertainty Assessment  

E-Print Network [OSTI]

. INTRODUCTION AND BACKGROUND 1.1 Introduction The oil and gas industry is full of uncertainty. In addition to significant subsurface uncertainty and uncertainty in oil and gas prices, there are other risks, e.g., political, that contribute to uncertainty... that is commonly applied in other industries for assessing forecasts and was initially developed to assess weather forecasts (Brier, 1950). Lichtenstein and Fischhoff (1977) summarized the background for the 3 Brier score and its components. The Brier score...

Fondren, Mark Edward

2013-08-02T23:59:59.000Z

380

Fluid Bed Combustion Applied to Industrial Waste  

E-Print Network [OSTI]

of its relatively recent application to coal fired steam production, fluid beds have been uti lized in industry for over 60 years. Beginning in Germany in the twenties for coal gasification, the technology was applied to catalytic cracking of heavy... system cost), use of minimum excess air required, and maintaining the min"imum reactor temperature neces sary to sustain combustion. For superautogenous fuels, where incineration. only is desired, minimum capital cost is achieved by using direct bed...

Mullen, J. F.; Sneyd, R. J.

Note: This page contains sample records for the topic "grain cxs applied" 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

Applied Studies and Technology (AS&T) | Department of Energy  

Energy Savers [EERE]

Applied Studies and Technology (AS&T) Applied Studies and Technology (AS&T) Applied Studies and Technology (AS&T) DOE established the Environmental Sciences Laboratory (ESL) in...

382

Applied Environmental Microbiology | VIMSS - Virtual Institute for  

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

Collection of Soil Samples Collection of Soil Samples Identification of Natural Stressors Profiling of Microbial Population Field and Simulated Conceptual Model Facilities The Applied Environmental Microbiology (AEM) Core is the source of environmental data and samples that determine the stressors that will be studied, pro-vides the environments for growing the organisms to be tested, simulates stressed environments, and verifies the conceptual models to determine how these stress regulatory pathways control the biogeochemistry of contaminated sites. The specific goals of the AEM Core are to: Survey and map DOE sites contaminated by metals and radionuclides using chemical and molecular/ microbiological parameters to determine major microbial populations and potential stressors for Desulfovibrio vulgaris,

383

Determining when NEPA applies to nonfederal activities  

SciTech Connect (OSTI)

More than a quarter century after enactment of the National Environmental Policy Act (NEPA), unresolved questions still persist regarding its applicability to state and private actions. This is particularly true when such projects are undertaken to support the needs of a federal agency. Proposed below is a paradigm for determining when NEPA applies to state or privately conducted, but federally influenced or inspired, actions. The paradigm employs a set of five sequential tests for determining if a state or privately conducted action is subject to the requirements of NEPA.

Eccleston, C.H., Westinghouse Hanford

1996-07-03T23:59:59.000Z

384

6.728 Applied Quantum and Statistical Physics, Fall 2002  

E-Print Network [OSTI]

Elementary quantum mechanics and statistical physics. Introduces applied quantum physics. Emphasizes experimental basis for quantum mechanics. Applies Schrodinger's equation to the free particle, tunneling, the harmonic ...

Bulovic, Vladimir, 1970-

385

Remediation of Mercury and Industrial Contaminants Applied Field...  

Office of Environmental Management (EM)

Remediation of Mercury and Industrial Contaminants Applied Field Research Initiative (RoMIC-AFRI) Remediation of Mercury and Industrial Contaminants Applied Field Research...

386

Apply: Building Energy Efficiency Frontiers and Incubator Technologies...  

Energy Savers [EERE]

Apply: Building Energy Efficiency Frontiers and Incubator Technologies (BENEFIT) - 2014 (DE-FOA-0001027) Apply: Building Energy Efficiency Frontiers and Incubator Technologies...

387

Applying Risk Communication to the Transportation of Radioactive...  

Office of Environmental Management (EM)

Applying Risk Communication to the Transportation of Radioactive Materials Applying Risk Communication to the Transportation of Radioactive Materials Participants should expect to...

388

Rational Catalyst Design Applied to Development of Advanced Oxidation...  

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

Catalyst Design Applied to Development of Advanced Oxidation Catalysts for Diesel Emission Control Rational Catalyst Design Applied to Development of Advanced Oxidation...

389

Applying Climate Information for Adaptation Decision-Making:...  

Open Energy Info (EERE)

Applying Climate Information for Adaptation Decision-Making: A Guidance and Resource Document Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Applying Climate...

390

Grand Challenge for Basic and Applied Research in Hydrogen Storage...  

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

Grand Challenge for Basic and Applied Research in Hydrogen Storage Grand Challenge for Basic and Applied Research in Hydrogen Storage Presentation from the Hydrogen Storage...

391

'Grand Challenge' for Basic and Applied Research in Hydrogen...  

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

'Grand Challenge' for Basic and Applied Research in Hydrogen Storage Solicitation 'Grand Challenge' for Basic and Applied Research in Hydrogen Storage Solicitation DOE is issuing a...

392

Grand Challenge for Basic and Applied Research in Hydrogen Storage...  

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

Grand Challenge for Basic and Applied Research in Hydrogen Storage: Statement of Objectives Grand Challenge for Basic and Applied Research in Hydrogen Storage: Statement of...

393

James Webb Space Telescope: PM Lessons Applied - Eric Smith,...  

Energy Savers [EERE]

James Webb Space Telescope: PM Lessons Applied - Eric Smith, Deputy Program Director, NASA James Webb Space Telescope: PM Lessons Applied - Eric Smith, Deputy Program Director,...

394

Energy Department Announces Up to $14 Million for Applying Landscape...  

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

Up to 14 Million for Applying Landscape Design to Cellulosic Bioenergy Energy Department Announces Up to 14 Million for Applying Landscape Design to Cellulosic Bioenergy October...

395

Optical Diagnostics and Modeling Tools Applied to Diesel HCCI...  

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

Optical Diagnostics and Modeling Tools Applied to Diesel HCCI Optical Diagnostics and Modeling Tools Applied to Diesel HCCI 2002 DEER Conference Presentation: Caterpillar Engine...

396

The Applied Mathematics for Power Systems (AMPS)  

SciTech Connect (OSTI)

Increased deployment of new technologies, e.g., renewable generation and electric vehicles, is rapidly transforming electrical power networks by crossing previously distinct spatiotemporal scales and invalidating many traditional approaches for designing, analyzing, and operating power grids. This trend is expected to accelerate over the coming years, bringing the disruptive challenge of complexity, but also opportunities to deliver unprecedented efficiency and reliability. Our Applied Mathematics for Power Systems (AMPS) Center will discover, enable, and solve emerging mathematics challenges arising in power systems and, more generally, in complex engineered networks. We will develop foundational applied mathematics resulting in rigorous algorithms and simulation toolboxes for modern and future engineered networks. The AMPS Center deconstruction/reconstruction approach 'deconstructs' complex networks into sub-problems within non-separable spatiotemporal scales, a missing step in 20th century modeling of engineered networks. These sub-problems are addressed within the appropriate AMPS foundational pillar - complex systems, control theory, and optimization theory - and merged or 'reconstructed' at their boundaries into more general mathematical descriptions of complex engineered networks where important new questions are formulated and attacked. These two steps, iterated multiple times, will bridge the growing chasm between the legacy power grid and its future as a complex engineered network.

Chertkov, Michael [Los Alamos National Laboratory

2012-07-24T23:59:59.000Z

397

Entropy viscosity method applied to Euler equations  

SciTech Connect (OSTI)

The entropy viscosity method [4] has been successfully applied to hyperbolic systems of equations such as Burgers equation and Euler equations. The method consists in adding dissipative terms to the governing equations, where a viscosity coefficient modulates the amount of dissipation. The entropy viscosity method has been applied to the 1-D Euler equations with variable area using a continuous finite element discretization in the MOOSE framework and our results show that it has the ability to efficiently smooth out oscillations and accurately resolve shocks. Two equations of state are considered: Ideal Gas and Stiffened Gas Equations Of State. Results are provided for a second-order time implicit schemes (BDF2). Some typical Riemann problems are run with the entropy viscosity method to demonstrate some of its features. Then, a 1-D convergent-divergent nozzle is considered with open boundary conditions. The correct steady-state is reached for the liquid and gas phases with a time implicit scheme. The entropy viscosity method correctly behaves in every problem run. For each test problem, results are shown for both equations of state considered here. (authors)

Delchini, M. O.; Ragusa, J. C. [Nuclear Engineering Department, Texas A and M University, 3133 TAMU, College Station, TX 77843-3133 (United States); Berry, R. A. [Idaho National Laboratory, P.O. Box 1625, Idaho Falls, ID 83415-3840 (United States)

2013-07-01T23:59:59.000Z

398

Nontoxic chemical process for in situ permeability enhancement and accelerated decontamination of fine-grain subsurface sediments  

DOE Patents [OSTI]

The remediation of heterogeneous subsurfaces is extremely time consuming and expensive with current and developing technologies. Although such technologies can adequately remove contaminants in the high hydraulic conductivity, coarse-grained sediments, they cannot access the contaminated low hydraulic conductivity fine-grained sediments. The slow bleed of contaminants from the fine-grained sediments is the primary reason why subsurface remediation is so time-consuming and expensive. This invention addresses the problem of remediating contaminated fine-grained sediments. It is intended that, in the future, a heterogeneous site be treated by a hybrid process that first remediates the high hydraulic conductivity, coarse-grained sediments, to be followed by the process, described in this invention, to treat the contaminated low hydraulic conductivity fine-grained sediments. The invention uses cationic flocculents and organic solvents to collapse the swelling negative double layer surrounding water saturated clay particles, causing a flocculated, cracked clay structure. The modification of the clay fabric in fine-grained sediments dramatically increases the hydraulic conductivity of previously very tight clays many orders of magnitude.

Kansa, Edward J. (Livermore, CA); Wijesinghe, Ananda M. (Tracy, CA); Viani, Brian E. (Oakland, CA)

1997-01-01T23:59:59.000Z

399

The effects of aeration time for various airflow rates on the properties of the effluent air from grain aerated in storage  

E-Print Network [OSTI]

Specific Enthalpy of Interstice Air in Relation to Aeration Time when Cooling a Mass of Grain in Storage. . . . . . . 28 Specific Enthalpy of Interstice Air in Relation to Aeration Time when Cooling a Mass of Grain in Storage. . . . . . . 29 Specific... Enthalpy of Interstice Air in Relation to Aeration Time when Cooling a Mass of Grain in Storage. . . . . . . 30 17 Specific Enthalpy of Interstice Air in Relation to Aeration Time when Cooling a Mass of Grain in Storage. . . . . . . 31 18. Cooling Time...

Miller, John Allen

1965-01-01T23:59:59.000Z

400

Argonne CNM News: STM of individual grains in CVD-grown graphene  

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

STM of individual grains in CVD-grown graphene STM of individual grains in CVD-grown graphene SEM of 3d supercrystals The first scanning tunneling microscopy (STM) images of graphene synthesized on copper foil. (b-d) show atomic-resolution images at various locations of the large graphene domain shown in (a). NMAT June 2011 Users from Purdue University, working collaboratively with staff in the Electronic & Magnetic Materials & Devices Group, studied CVD-grown graphene on polycrystalline copper foil for the first time at the atomic-scale. The ultrahigh vacuum scanning tunneling microscopy (UHV-STM) findings performed at the Center for Nanoscale Materials (CNM) will help to guide the optimization of synthesis towards defect-free graphene. The focus of this study was to investigate the quality of the films and

Note: This page contains sample records for the topic "grain cxs applied" 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

Modeling sequence-specific polymers using anisotropic coarse-grained sites allows quantitative comparison with experiment  

E-Print Network [OSTI]

Certain sequences of peptoid polymers (synthetic analogs of peptides) assemble into bilayer nanosheets via a nonequilibrium assembly pathway of adsorption, compression, and collapse at an air-water interface. As with other large-scale dynamic processes in biology and materials science, understanding the details of this supramolecular assembly process requires a modeling approach that captures behavior on a wide range of length and time scales, from those on which individual sidechains fluctuate to those on which assemblies of polymers evolve. Here we demonstrate that a new coarse-grained modeling approach is accurate and computationally efficient enough to do so. Our approach uses only a minimal number of coarse-grained sites, but retains independently fluctuating orientational degrees of freedom for each site. These orientational degrees of freedom allow us to accurately parameterize both bonded and nonbonded interactions, and to generate all-atom configurations with sufficient accuracy to perform atomic sca...

Haxton, Thomas K; Zuckermann, Ronald N; Whitelam, Stephen

2014-01-01T23:59:59.000Z

402

Evaluating sealed storage of high moisture sorghum grain for a beef finishing program  

E-Print Network [OSTI]

Bedaced coNan and rice, . cro. ge has resulted in a search for crops of hip& ecoiiomic return. har;w corsages h. =ve bean pi". uted to grain sor, -hum and, h ve proluced nigh yields. T%s, problem of, attkising this sorghum grain has sparked 4 grominp...~:fora ~ainee rn aver -j. ?s. of 2. l6 pounIls ~sr Dog, rhile thnie fel, ~nle ~in ~ in& 2. . 'I6 . ". our8O-~er 8:g. . i hi~her i -i . , Qsgres'o'f finish pgihishnr aellin, , price ve"s ohtcinel an 'ths steers fe4 tho' prounIi gs, g, ', Ponos statee. that enr...

Cross, Julian Frederick

2012-06-07T23:59:59.000Z

403

Direct observation of resistive heating at graphene wrinkles and grain boundaries  

SciTech Connect (OSTI)

We directly measure the nanometer-scale temperature rise at wrinkles and grain boundaries (GBs) in functioning graphene devices by scanning Joule expansion microscopy with 50 nm spatial and 0.2K temperature resolution. We observe a small temperature increase at select wrinkles and a large (100 K) temperature increase at GBs between coalesced hexagonal grains. Comparisons of measurements with device simulations estimate the GB resistivity (8 150 X lm) among the lowest reported for graphene grown by chemical vapor deposition. An analytical model is developed, showing that GBs can experience highly localized resistive heating and temperature rise, most likely affecting the reliability of graphene devices. Our studies provide an unprecedented view of thermal effects surrounding nanoscale defects in nanomaterials such as graphene.

Grosse, Kyle L. [University of Illinois Urbana-Champaign; Dorgan, Vincent E. [University of Illinois at Urbana-Champaign, Urbana-Champaign; Estrada, David [University of Illinois at Urbana-Champaign, Urbana-Champaign; Wood, Joshua D. [University of Illinois at Urbana-Champaign, Urbana-Champaign; Vlassiouk, Ivan V [ORNL; Eres, Gyula [ORNL; Lyding, Joseph W [University of Illinois at Urbana-Champaign, Urbana-Champaign; King, William P. [University of Illinois at Urbana-Champaign, Urbana-Champaign; Pop, Eric [Stanford University

2014-01-01T23:59:59.000Z

404

Stochastic thermodynamics of fluctuating density fields: Non-equilibrium free energy differences under coarse-graining  

SciTech Connect (OSTI)

We discuss the stochastic thermodynamics of systems that are described by a time-dependent density field, for example, simple liquids and colloidal suspensions. For a time-dependent change of external parameters, we show that the Jarzynski relation connecting work with the change of free energy holds if the time evolution of the density follows the Kawasaki-Dean equation. Specifically, we study the work distributions for the compression and expansion of a two-dimensional colloidal model suspension implementing a practical coarse-graining scheme of the microscopic particle positions. We demonstrate that even if coarse-grained dynamics and density functional do not match, the fluctuation relations for the work still hold albeit for a different, apparent, change of free energy.

Leonard, T.; Lander, B.; Seifert, U. [II. Institut für Theoretische Physik, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart (Germany)] [II. Institut für Theoretische Physik, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart (Germany); Speck, T. [Institut für Theoretische Physik II, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf (Germany)] [Institut für Theoretische Physik II, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf (Germany)

2013-11-28T23:59:59.000Z

405

Grain-scale thermoelastic stresses and spatiotemporal temperature gradients on airless bodies, implications for rock breakdown  

E-Print Network [OSTI]

Thermomechanical processes such as fatigue and shock have been suggested to cause and contribute to rock breakdown on Earth, and on other planetary bodies, particularly airless bodies in the inner solar system. In this study, we modeled grain-scale stresses induced by diurnal temperature variations on simple microstructures made of pyroxene and plagioclase on various solar system bodies. We found that a heterogeneous microstructure on the Moon experiences peak tensile stresses on the order of 100 MPa. The stresses induced are controlled by the coefficient of thermal expansion and Young's modulus of the mineral constituents, and the average stress within the microstructure is determined by relative volume of each mineral. Amplification of stresses occurs at surface-parallel boundaries between adjacent mineral grains and at the tips of pore spaces. We also found that microscopic spatial and temporal surface temperature gradients do not correlate with high stresses, making them inappropriate proxies for investig...

Molaro, Jamie L; Langer, Steve A

2015-01-01T23:59:59.000Z

406

Ultrasonic Sound Field Mapping Through Coarse Grained Cast Austenitic Stainless Steel Components  

SciTech Connect (OSTI)

The Pacific Northwest National Laboratory (PNNL) has been involved with nondestructive examination (NDE) of coarse-grained cast austenitic stainless steel (CASS) components for over 30 years. More recent work has focused on mapping the ultrasonic sound fields generated by low-frequency phased array probes that are typically used for the evaluation of CASS materials for flaw detection and characterization. The casting process results in the formation of large grained material microstructures that are nonhomogeneous and anisotropic. The propagation of ultrasonic energy for examination of these materials results in scattering, partitioning and redirection of these sound fields. The work reported here provides an assessment of sound field formation in these materials and provides recommendations on ultrasonic inspection parameters for flaw detection in CASS components.

Crawford, Susan L.; Prowant, Matthew S.; Cinson, Anthony D.; Larche, Michael R.; Diaz, Aaron A.

2014-08-01T23:59:59.000Z

407

Upper Mission Canyon coated-grain producing facies in Williston basin  

SciTech Connect (OSTI)

The upper Mission Canyon formation, along the northeastern flank of the Williston basin, is a regressive carbonate and evaporite sequence, which has been informally divided into log-defined intervals. Oil production locally occurs at the transition from anhydrite to carbonate for each of the regressive intervals. These carbonate shoreline reservoirs are limestones dominated by coated grains. Porosity is intergranular and vuggy, and production from these reservoirs locally exceeds 400,000 bbl of oil/well. Upper Mission Canyon beds are also productive in island-shoal reservoirs, which developed basinward of of shorelines. These limestone reservoirs are also dominated by coated grains and porosity is intergranular and vuggy. Oil production from these reservoirs is variable, but wells within the Sherwood field along the US-Canadian border have produced over 2.0 MMbbl of oil/well.

Hendricks, M.L. (Hendricks and Associates, Inc., Denver, CO (USA))

1989-08-01T23:59:59.000Z

408

The storing of sorghum grain in the Coastal Bend area of Texas  

E-Print Network [OSTI]

ZgghgggODIS the famccrtaneo ?f o?rghnn gr?Las in Sr?as agrkenltccro has green etead5. + daring the past ice? dosages. Se ear?ago has ice?ressed fbcc? 3cdg3cMO ia 1930 to &ygfdy000 aaron in 1930+~ The yrineiicaL ress?n fer this in?roose oas 4he de... these data fco the 19d9-1950 season. The data obtained in 1950 1951 parallels the first year~a results. 50 Germination vas very loe at the tine the 1949 1950 season grain was stored. Ii mes noted earlier that most of that grain ?as dried in a oasaeroial...

Davenport, Marc Glover

1957-01-01T23:59:59.000Z

409

And so can plants with high starch contents. [Cereal grains conversion to ethanol  

SciTech Connect (OSTI)

Researchers at Miles Laboratories are looking into the hydrolysis of starch using two enzymes - alpha-amylase and glucoamylase, as high concentrations of starch like those found in cereal grains can be converted into ethanol by way of sugars. It is estimated that to produce 1 gallon of ethanol requires about 56 lb of corn and with 85% fermentation efficiency, the enzyme cost per gallon of ethanol would be 6-7 cents.

Not Available

1980-09-08T23:59:59.000Z

410

Role of stress-assisted martensite in the design of strong ultrafine-grained duplex steels  

E-Print Network [OSTI]

stress- assisted process that enhances transformation-induced plasticity in ultrafine-grained austenite. This metallurgical principle was validated experimentally by using a combination of transmission Kikuchi diffraction mapping, transmission electron... intrusion applications or hole-expanded components in the automotive industry [1]. Moreover, some of the medium manganese steels require prolonged heat treatments so as to ensure solute partitioning in order to stabilise the austenite [16, 17], making...

Yen, Hung-Wei; Ooi, Steve Woei; Eizadjou, Mehdi; Breen, Andrew; Huang, Ching-Yuan; Bhadeshia, H. K. D. H.; Ringer, Simon P.

2014-10-03T23:59:59.000Z

411

The relationship between grain yield and waxy endosperm in Sorghum bicolor (Linn.) Moench  

E-Print Network [OSTI]

OF FIGURES FIGURE 1 Histogram of B-line genotypes classed by mean grain yield (kg/ha-1). Entries are color-coded based on endosperm type. A. College Station, 1998. B. College Station, 1999. C. College Station, 2000. D. Lubbock, 1998. E.... Lubbock, 1999.??????????....??..???????..42 2 Histogram of B-line genotypes classed by genotype mean plant height (cm). Entries are color-coded based on endosperm type. A. College Station, 1998. B. College Station, 1999. C. College Station, 2000...

Aydin, Selahattin

2005-08-29T23:59:59.000Z

412

Effects of resistant grain sorghum hybrids on the biology of the sorghum midge, Contarinia sorghicola (Coquillett)  

E-Print Network [OSTI]

in the cages. For the susceptible hybrids, only one midge was introduced into each cage . The re- sistant hybrids had four infestation levels: 1, 5, 10, and 20 midges per panicle. Each infestation level was randomly assigned to three plants in each plot...EFFECTS OF RESISTANT GRAIN SORGHUM HYBRIDS ON THE BIOLOGY OF THE SORGHUM MIDGE, CONTARINIA SORGHICOLA (COQUILLETT) A Thesis by KEN DAVID MELTON Submitted to the Graduate College of Texas A&M University in partial fulfillment...

Melton, Ken David

2012-06-07T23:59:59.000Z

413

Forage and grain production of four F? barley hybrids and their inbred parents  

E-Print Network [OSTI]

, in 1963-64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ~ ~ ~ . ~ " 4 4 Grain yield of barley parent varieties and F1 hybrids grown at College Station, Texas, 1963-64. 18 5 Number of spikes per square foot for barley parent varieties...' the other parent, so that the hybrid has s, more favorable combdnation than ei. ther one of the parents. Dickson (5) indicated that with extensive development of parental lines, it should be possible to incorporate other factors, such as disease...

Van Dijk, Albert Heinrich

2012-06-07T23:59:59.000Z

414

Advances in Host Plant and Rhizobium Genomics to Enhance Symbiotic Nitrogen Fixation in Grain Legumes  

Science Journals Connector (OSTI)

Abstract Legumes form symbiotic relationship with root-nodule, rhizobia. The nitrogen (N2) fixed by legumes is a renewable source and of great importance to agriculture. Symbiotic nitrogen fixation (SNF) is constrained by multiple stresses and alleviating them would improve SNF contribution to agroecosystems. Genetic differences in adaptation tolerance to various stresses are known in both host plant and rhizobium. The discovery and use of promiscuous germplasm in soybean led to the release of high-yielding cultivars in Africa. High N2-fixing soybean cultivars are commercially grown in Australia and some countries in Africa and South America and those of pea in Russia. SNF is a complex trait, governed by multigenes with varying effects. Few major quantitative trait loci (QTL) and candidate genes underlying QTL are reported in grain and model legumes. Nodulating genes in model legumes are cloned and orthologs determined in grain legumes. Single nucleotide polymorphism (SNP) markers from nodulation genes are available in common bean and soybean. Genomes of chickpea, pigeonpea, and soybean; and genomes of several rhizobium species are decoded. Expression studies revealed few genes associated with SNF in model and grain legumes. Advances in host plant and rhizobium genomics are helping identify DNA markers to aid breeding of legume cultivars with high symbiotic efficiency. A paradigm shift is needed by breeding programs to simultaneously improve host plant and rhizobium to harness the strength of positive symbiotic interactions in cultivar development. Computation models based on metabolic reconstruction pathways are providing greater insights to explore genotype–phenotype relationships in SNF. Models to simulate the response of N2 fixation to a range of environmental variables and crop growth are assisting researchers to quantify SNF for efficient and sustainable agricultural production systems. Such knowledge helps identifying bottlenecks in specific legume–rhizobia systems that could be overcome by legume breeding to enhance SNF. This review discusses the recent developments to improve SNF and productivity of grain legumes.

Sangam L. Dwivedi; Kanwar L. Sahrawat; Hari D. Upadhyaya; Alessio Mengoni; Marco Galardini; Marco Bazzicalupo; Emanuele G. Biondi; Mariangela Hungria; Glaciela Kaschuk; Matthew W. Blair; Rodomiro Ortiz

415

Evaluation of potential food applications of dried distillers spent grain (DSG). Final research report  

SciTech Connect (OSTI)

Results from experimental test bakes indicate that dried distillers spent grain (DSG) can be used to replace up to 15% of the flour for the production of an acceptable variety bread, provided that the DSG is processed under optimum conditions for a satisfactory flavor and color development. The raw materials used for the mash bill may also affect the taste of the finished product. (MHR)

Not Available

1981-02-06T23:59:59.000Z

416

THE EFFECT OF INTERSTITIAL N ON GRAIN BOUNDARY COHESIVE STRENGTH IN Fe  

SciTech Connect (OSTI)

Increased nitrogen levels have been correlated with decreased ductility and elevated ductile-to-brittle transition temperature in pressure vessel steels [1]. However, the exact role played by nitrogen in the embrittlement of steels remains unclear. Miller and Burke have reported atom probe ion microscopy findings from neutron-irradiated low-alloy pressure vessel steel showing the presence of a 1 to 2 ruonolayer thick film of Mo, N, and C at prior austenitic grain boundaries (GB's) [2], suggesting a role for nitrogen as an intergranular embrittler. It is of interest for the development of mitigation strategies whether nitrogen must combine with other impurities to form nitride precipitates in order to exert an embrittling effect. Briant et al [1] have associated the embrittling effect of N in steels exclusively with intergranular nitride formation. This association suggests that high nitrogen levels may be acceptable if nitride precipitation at grain boundaries is suppressed. To address whether precipitate formation is indeed essential to the N embrittlement process in pressure vessel steel, a computational study was undertaken to ascertain whether the presence of interstitial nitrogen alone could embrittle an Fe GB. If so, nitrogen in any form must be kept completely away from the grain boundaries, if not out of the material altogether. The effect of interstitial N on the cohesion of an Fe {Sigma}3[110](111) grain boundary (GB) was investigated by ab-initio electronic structure calculations to reveal that free interstitial N produces a large strengthening energy, reduces the magnetic moments of the GB Fe atoms and is embrittling at the GB's.

Miyoung, Kim, Geller, Clint B., Freeman, A.F.

2003-09-22T23:59:59.000Z

417

Identification of Characteristic Protein Folding Channels in a Coarse-Grained Hydrophobic-Polar Peptide Model  

E-Print Network [OSTI]

Folding channels and free-energy landscapes of hydrophobic-polar heteropolymers are discussed on the basis of a minimalistic off-lattice coarse-grained model. We investigate how rearrangements of hydrophobic and polar monomers in a heteropolymer sequence lead to completely different folding behaviors. Studying three exemplified sequences with the same content of hydrophobic and polar residues, we can reproduce within this simple model two-state folding, folding through intermediates, as well as metastability.

Stefan Schnabel; Michael Bachmann; Wolfhard Janke

2007-10-25T23:59:59.000Z

418

Harvesting Grain with the Combined Harvester-Thresher in Northwest Texas.  

E-Print Network [OSTI]

OF PUBLIC ROADS. UNITED STATES DEPARTMENT OF AGRICULTURE Harvesting Grain with the Combined Harvester- Thresher in Northwest Texas AGRICULTURAL AND MECHANICAL COLLEGE OF TEXAS T. 0. WALTON, President ' STATION ADMINISTRATION: *H. YOUNGRLOOD, M. S... in 1926 shows that the cost of harvesting is lowered, the amount of labor required is reduced, and the period of harvesting and threshing is short- ened by use of the combine. The cost of harvesting and threshing with the combine ranged from $1...

Smith, H. P. (Harris Pearson); Spilman, Robert F.

1928-01-01T23:59:59.000Z

419

Evaluation of whole plant grain sorghum silage processing methods and lasalocid sodium levels on stocker calf performance and rumen fermentation  

E-Print Network [OSTI]

from . 78 to 1. 02 kg daily or 29/. . Feed efficiency was improved by 14/. . 12 It then becomes evident that the grain within the sorghum grain silage must be subjected to some processing method if satisfactory utilization is to be expected.... 83 85. 24 . 52 2. 14 . 09 4. 10 1. 66 Acid detergent fiber, Fecal pH 38. 95 38. 39 6. 85 7. 02 40. 10 1. 49 6. 97 . 05 a, b Different superscripts in same line are different (P&. 05) 52 TABLE 10. EFFECT OF WHOLE PLANT GRAIN SORGHUM SILAGE...

Gutierrez Garza, Gerardo

1980-01-01T23:59:59.000Z

420

Coarse-grained spin density-functional theory: infinite-volume limit via the hyperfinite  

E-Print Network [OSTI]

Coarse-grained spin density functional theory (SDFT) is a version of SDFT which works with number/spin densities specified to a limited resolution --- averages over cells of a regular spatial partition --- and external potentials constant on the cells. This coarse-grained setting facilitates a rigorous investigation of the mathematical foundations which goes well beyond what is currently possible in the conventional formualation. Problems of existence, uniqueness and regularity of representing potentials in the coarse-grained SDFT setting are here studied using techniques of (Robinsonian) nonstandard analysis. Every density which is nowhere spin-saturated is V-representable, and the set of representing potentials is the functional derivative, in an appropriate generalized sense, of the Lieb interal energy functional. Quasi-continuity and closure properties of the set-valued representing potentials map are also established. The extent of possible non-uniqueness is similar to that found in non-rigorous studies of the conventional theory, namely non-uniqueness can occur for states of collinear magnetization which are eigenstates of $S_z$.

Paul E. Lammert

2015-02-09T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

Mechanical behaviour and microstructural characterizations of ultrafine grained Zircaloy-2 processed by cryorolling  

Science Journals Connector (OSTI)

Abstract The mechanical properties and microstructural characteristics of ultrafine grained Zircaloy-2 processed by cryorolling (CR) were investigated in the present work. The solutionised Zircaloy-2 was rolled at liquid nitrogen temperature (77 K) with different thickness reductions (25–85%). The dislocation density ??? in the cryorolled Zircaloy-2 increases with increasing true strain due to the suppression of dynamic recovery. EBSD analysis of CR Zircaloy-2 revealed initial strain hardening, which has occurred due to activation of { 10 1 ¯ 2 } ? 1 ¯ 011 ? tensile and { 11 2 ¯ 2 } ? 1 ¯ 1 ¯ 23 ? compressive twins during deformation of samples up to 50% strain. The prismatic and basal slips were activated during subsequent deformation. The fraction of low angle boundaries has increased with increasing true strain up to 50% thickness reduction but the fraction of high angle grain boundaries has increased for CR85% alloy. The CR 85% alloy showed hardness and yield strength values of 282 HV and 891 MPa, respectively. The annealed CR 85% alloy showed higher ductility (9.5% and 11.2% in rolling and transverse direction, respectively) as compared to CR 85% alloy. The annealed Zircaloy-2 showed heterogeneous microstructure consisting of ultrafine grains and nanograins.

Sunkulp Goel; Nachiket Keskar; R. Jayaganthan; I.V. Singh; D. Srivastava; G.K. Dey; N. Saibaba

2014-01-01T23:59:59.000Z

422

Mechanical and microstructural characterizations of ultrafine grained Zircaloy-2 produced by room temperature rolling  

Science Journals Connector (OSTI)

Abstract The effect of deformation strain at room temperature on the microstructural and mechanical properties of Zircaloy-2 was investigated in the present work. The sample was initially heat treated at 800 °C in argon environment and quenched in mercury prior to rolling. The deformed alloys were characterized by using EBSD and TEM. It reveals the misorientation of incidental grain boundaries (IDBs) due to large plastic strain induced in the sample. The recovery of deformed alloy upon annealing leads to the formation of ultrafine and nanostructured grains in the alloy. The hardness achieved after 85% room temperature rolling (RTR) is found to be 269 HV, while the tensile strength is 679 MPa and 697 MPa in the rolling and transverse direction, respectively. The improvement in strength is due to generation of high dislocation density and ultrafine grains in the deformed alloy with 85% thickness reduction, during rolling. The deformed alloy subjected to annealing at 400 °C for 30 min sample shows increase in ductility (6% and 7.2%) in rolling and transverse direction, respectively, due to the annihilation of dislocations as evident from the TEM study.

Sunkulp Goel; R. Jayaganthan; I.V. Singh; D. Srivastava; G.K. Dey; N. Saibaba

2014-01-01T23:59:59.000Z

423

Applied Energy Management | Open Energy Information  

Open Energy Info (EERE)

Management Management Jump to: navigation, search Name Applied Energy Management Place Huntersville, North Carolina Zip 28078 Sector Efficiency, Renewable Energy Product North Carolina-based, energy efficiency and renewable energy service and construction company. Coordinates 35.409853°, -80.842716° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.409853,"lon":-80.842716,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

424

How to Apply for ENERGY STAR® Certification  

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

ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü "How To" Series How to Apply for ENERGY STAR ® Certification Commercial buildings that earn EPA's ENERGY STAR certification perform in the top 25 percent of similar buildings nationwide, as verified by a Licensed Professional (a Professional Engineer or a Registered Architect). ENERGY STAR certified buildings use an average of 35 percent less energy and are responsible for 35 percent fewer greenhouse gas emissions than average buildings. To qualify for the ENERGY STAR, a property must achieve an ENERGY STAR score of 75 or higher on EPA's 1 - 100 scale, which compares a property's energy performance to

425

Nonextensive statistical dynamics applied to wall turbulence  

E-Print Network [OSTI]

We apply a formalism of nonextensive statistical mechanics to experimental wall turbulence data, for the first time to our knowledge. Wind tunnel data for velocity differences a streamwise distance $r$ apart are compared to the prediction from theory as developed by Beck. The simplest theory, in which all free parameters are removed, is found to reproduce statistics for the wall-normal velocity component remarkably well, even for $r$ well beyond the corresponding integral scale, while the corresponding description of the streamwise velocity fluctuations is reasonable at separations below the integral scale. A least-squares 2-parameter fit is performed, and the dependence of the optimum parameter values on wall separation and $r$ is analysed. Both parameters are found to be approximately independent of wall-separation in the logarithmic sub-layer.

Simen Å Ellingsen; Per-Åge Krogstad

2014-02-10T23:59:59.000Z

426

Apply reliability centered maintenance to sealless pumps  

SciTech Connect (OSTI)

This paper reports on reliability centered maintenance (RCM) which is considered a crucial part of future reliability engineering. RCM determines the maintenance requirements of plants and equipment in their operating context. The RCM method has been applied to the management of critical sealless pumps in fire/toxic risk services, typical of the petrochemical industry. The method provides advantages from a detailed study of any critical engineering system. RCM is a team exercise and fosters team spirit in the plant environment. The maintenance strategy that evolves is based on team decisions and relies on maximizing the inherent reliability built into the equipment. RCM recommends design upgrades where this inherent reliability is being questioned. Sealless pumps of canned motor design are used as main reactor charge pumps in PVC plants. These pumps handle fresh vinyl chloride monomer (VCM), which is both carcinogenic and flammable.

Pradhan, S. (Exxon Chemicals Canada, Ontario (Canada))

1993-01-01T23:59:59.000Z

427

Pipeline rehabilitation using field applied tape systems  

SciTech Connect (OSTI)

Bare steel pipelines were first installed years before the turn of the century. Pipeline operators soon realized the lie of bare steel could be greatly enhanced by applying coatings. Thus began ``pipeline rehabilitation.`` Many of the older pipelines were exposed, evaluated, coated and returned to service. This procedure has reached new heights in recent years as coated pipelines of the twentieth century, having lived past their original design life, are now subject to coating failure. Many operator companies with pipelines thirty years or older are faced with ``replace or recondition.`` Considering the emphasis on cost restraints and environmental issues, replacing an existing pipeline is often not the best decision. Rehabilitation is a preferred solution for many operators.

Reeves, C.R. [Tapecoat Co., Evanston, IL (United States)

1998-12-31T23:59:59.000Z

428

ASC/Nursing Engineering and Applied Science September 2010  

E-Print Network [OSTI]

ASC/Nursing Engineering and Applied Science September 2010 5 11 6 6 7 8 Residence Days Residence First date to apply to graduate for Spring 2011 (tentative) First date to apply to graduate for Spring April Exam Period 22 25 Extended Program Spring Term begins Last date to apply to graduate for Spring

Offin, Dan

429

Peridynamics as a rigorous coarse-graining of atomistics for multiscale materials design.  

SciTech Connect (OSTI)

This report summarizes activities undertaken during FY08-FY10 for the LDRD Peridynamics as a Rigorous Coarse-Graining of Atomistics for Multiscale Materials Design. The goal of our project was to develop a coarse-graining of finite temperature molecular dynamics (MD) that successfully transitions from statistical mechanics to continuum mechanics. The goal of our project is to develop a coarse-graining of finite temperature molecular dynamics (MD) that successfully transitions from statistical mechanics to continuum mechanics. Our coarse-graining overcomes the intrinsic limitation of coupling atomistics with classical continuum mechanics via the FEM (finite element method), SPH (smoothed particle hydrodynamics), or MPM (material point method); namely, that classical continuum mechanics assumes a local force interaction that is incompatible with the nonlocal force model of atomistic methods. Therefore FEM, SPH, and MPM inherit this limitation. This seemingly innocuous dichotomy has far reaching consequences; for example, classical continuum mechanics cannot resolve the short wavelength behavior associated with atomistics. Other consequences include spurious forces, invalid phonon dispersion relationships, and irreconcilable descriptions/treatments of temperature. We propose a statistically based coarse-graining of atomistics via peridynamics and so develop a first of a kind mesoscopic capability to enable consistent, thermodynamically sound, atomistic-to-continuum (AtC) multiscale material simulation. Peridynamics (PD) is a microcontinuum theory that assumes nonlocal forces for describing long-range material interaction. The force interactions occurring at finite distances are naturally accounted for in PD. Moreover, PDs nonlocal force model is entirely consistent with those used by atomistics methods, in stark contrast to classical continuum mechanics. Hence, PD can be employed for mesoscopic phenomena that are beyond the realms of classical continuum mechanics and atomistic simulations, e.g., molecular dynamics and density functional theory (DFT). The latter two atomistic techniques are handicapped by the onerous length and time scales associated with simulating mesoscopic materials. Simulating such mesoscopic materials is likely to require, and greatly benefit from multiscale simulations coupling DFT, MD, PD, and explicit transient dynamic finite element methods FEM (e.g., Presto). The proposed work fills the gap needed to enable multiscale materials simulations.

Lehoucq, Richard B.; Aidun, John Bahram; Silling, Stewart Andrew; Sears, Mark P.; Kamm, James R.; Parks, Michael L.

2010-09-01T23:59:59.000Z

430

Ultra-fine grained bulk CP-Ti processed by multi-pass ECAP at warm deformation region  

Science Journals Connector (OSTI)

Abstract In order to refine the grain size of commercially pure titanium (CP-Ti) to a submicrometer scale, equal channel angular pressing (ECAP) was attempted at a temperature range of 200–300 °C. The experiments revealed that, 250 °C was the minimum temperature at which ten passes of ECAP could be performed in a 105° die without the cracking of billets. An ultrafine-grained (UFG) microstructure with a mean grain size of 183 nm was achieved after 10 passes. The processed CP-Ti displayed high tensile strength of 892 MPa and high elongation to failure of 20.5%. The enhancement in mechanical properties is explained in terms of grain refinement and dislocation density increasing. The high ductility of UFG pure Ti with the absence of strain hardening behavior is attributed to its enhanced strain rate sensitivity.

K. Hajizadeh; B. Eghbali; K. Topolski; K.J. Kurzydlowski

2014-01-01T23:59:59.000Z

431

Submitted to ApJ Letters, June 29, 2005 Are Presolar Silicon Carbide Grains from Novae Actually from Supernovae?  

E-Print Network [OSTI]

Submitted to ApJ Letters, June 29, 2005 Are Presolar Silicon Carbide Grains from Novae Actually stellar nucleosynthesis and mixing. The best-studied presolar phase, silicon carbide (SiC), exhibits

Nittler, Larry R.

432

Multipass comminution process to produce precision wood particles of uniform size and shape with disrupted grain structure from wood chips  

DOE Patents [OSTI]

A process of comminution of wood chips (C) having a grain direction to produce a mixture of wood particles (P), wherein the wood chips are characterized by an average length dimension (L.sub.C) as measured substantially parallel to the grain, an average width dimension (W.sub.C) as measured normal to L.sub.C and aligned cross grain, and an average height dimension (H.sub.C) as measured normal to W.sub.C and L.sub.C, and wherein the comminution process comprises the step of feeding the wood chips in a direction of travel substantially randomly to the grain direction one or more times through a counter rotating pair of intermeshing arrays of cutting discs (D) arrayed axially perpendicular to the direction of wood chip travel.

Dooley, James H; Lanning, David N

2014-05-27T23:59:59.000Z

433

Fine-grained sedimentation on the Chenier Plain Coast and inner continental shelf, northern Gulf of Mexico  

E-Print Network [OSTI]

This thesis examines the evolution of a mud-dominated coastal sedimentary system on multiple time scales. Fine-grained systems exhibit different properties and behavior from sandy coasts, and have received relatively little ...

Draut, Amy Elizabeth

2003-01-01T23:59:59.000Z

434

Carrier mobility measurement across a single grain boundary in polycrystalline silicon using an organic gate thin-film transistor  

Science Journals Connector (OSTI)

In this study we developed a measurement method for field-effect-carrier mobility across a single grain boundary in polycrystalline Si (poly Si) used for solar cell production by using an organic gate field-effect transistor(FET). To prevent precipitation and the diffusion of impurities affecting the electronic characteristics of the grain boundary all the processing temperatures during FET fabrication were held below 150?°C. From the grain boundary the field-effect mobility was measured at around 21.4 cm2/Vs at 297?K and the temperature dependence of the field-effect mobility suggested the presence of a potential barrier of 0.22?eV at the boundary. The technique presented here is applicable for the monitoring of carrier conduction characteristics at the grain boundary in poly Si used for the production of solar cells.

Masaki Hashimoto; Kensaku Kanomata; Katsuaki Momiyama; Shigeru Kubota; Fumihiko Hirose

2012-01-01T23:59:59.000Z

435

Carrier mobility measurement across a single grain boundary in polycrystalline silicon using an organic gate thin-film transistor  

SciTech Connect (OSTI)

In this study, we developed a measurement method for field-effect-carrier mobility across a single grain boundary in polycrystalline Si (poly Si) used for solar cell production by using an organic gate field-effect transistor (FET). To prevent precipitation and the diffusion of impurities affecting the electronic characteristics of the grain boundary, all the processing temperatures during FET fabrication were held below 150 deg. C. From the grain boundary, the field-effect mobility was measured at around 21.4 cm{sup 2}/Vs at 297 K, and the temperature dependence of the field-effect mobility suggested the presence of a potential barrier of 0.22 eV at the boundary. The technique presented here is applicable for the monitoring of carrier conduction characteristics at the grain boundary in poly Si used for the production of solar cells.

Hashimoto, Masaki; Kanomata, Kensaku; Momiyama, Katsuaki; Kubota, Shigeru; Hirose, Fumihiko

2012-01-09T23:59:59.000Z

436

Preferential mode of gas invasion in sediments : grain-scale model of coupled multiphase fluid flow and sediment mechanics  

E-Print Network [OSTI]

We present a discrete element model for simulating, at the grain scale, gas migration in brine-saturated deformable media. We rigorously account for the presence of two fluids in the pore space by incorporating forces on ...

Jain, Antone Kumar

2009-01-01T23:59:59.000Z

437

Profits and Losses from On-farm Drying and Storage of Grain Sorghum in Central Texas and the Coastal Bend.  

E-Print Network [OSTI]

Bulletin 887 On-Farm Drainam' . 'N @ and Storage. of storage of grain sorghuni in the Coastal Bend area was 34 cents per hundred- weight and 30 cents per...

Hildreth, R. J.; Moore, C. A.

1958-01-01T23:59:59.000Z

438

The effectiveness of five scheduled applications of insecticides to grain sorghum for control of the sorghum midge, Contarinia sorghicola (Coq.)  

E-Print Network [OSTI]

THE EFFECTIVE?SS OF FIVE SCHEDULED APPLICATIONS OF INSECTICIDES TO GRAIN SORGHUM FOR CONTROL OF THE SORGHUll MIDGF, CONTARINIA SORGHICOLA (COQ. ) A Thesis by Chandler J. '~lhitten Submitted. to the Graduate Colleg. of the Texas RI University... sorghum plots treated at five spray schedules with each of seven insect'cides. . . . . . . . . . . . . . . . . $1 2. . . . . A comparison of insecticide effectiveness for control of the sorghum midge on grain sorghum at each of five treatment schedules...

Whitten, Chandler James

1968-01-01T23:59:59.000Z

439

Grain refinement using equal channel angular extrusion in bulk sections of copper 101 and aluminum alloys 3003 and 6061  

E-Print Network [OSTI]

GRAIN REFINEMENT USING EQUAL CHANNEL ANGULAR EXTRUSION IN BULK SECTIONS OF COPPER 101 AND ALUMINUM ALLOYS 3003 AND 6061 A Thesis by STEPHANE FERRASSE Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1995 Major Subject: Mechanical Engineering GRAIN REFINEMENT USING EQUAL CHANNEL ANGULAR EXTRUSION IN BULK SECTIONS OF COPPER 101 AND ALUMINUM ALLOYS 3003 AND 6061 A Thesis by STEPHANE FERRASSE...

Ferrasse, Stephane

1995-01-01T23:59:59.000Z

440

Variation in grain shape and surface textures of fine guartz sands in the South Texas Eolian Sand Sheet  

E-Print Network [OSTI]

VARIATION IN GRAIN SHAPE AND SURFACE TEXTURES OF FINE QUARTZ SANDS IN THE SOUTH TEXAS EOLIAN SAND SHEET A Thesis by DONALD RALPH SIMS JR. Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... Texas Eolian Sand Sheet (August, 1984) Donald Ralph Sims, Jr. , B. S. , Stockton State College Chairman of Advisory Committee: Dr. James N. Mazzullo Fourier grain shape analysis was conducted on fine sands of the South Texas Eolian Sand Sheet (STESS...

Sims, Donald Ralph

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

A preliminary study on potential indicators of technical efficiency in a grain export marketing system: the Argentine case  

E-Print Network [OSTI]

of performance of the system. Actual measures of technical efficiency are not utilized due to data constraints, but some potential indicators of technical effi- ciency in the system are examined. 'The grain marketing system of Argentina is the case under in... and helped me in many ways. TABLE OF CONTENTS Page INTRODUCTION Background and Literature Review . Objectives Description of the Argentine Grain Sector ARGENTINA'S ECONOMIC AND AGRICULTURAL POLICY: AN HISTORICAL PERSPECTIVE UP TO THE PRESENT 3 13...

Wilson, Shasi Cheryl Ruth

2012-06-07T23:59:59.000Z

442

The influence of different concentrations of various salts on the germination and early seedling growth of a grain sorghum cultivar  

E-Print Network [OSTI]

THE INFLUENCE OF DIFFERENT CONCENTRATIONS OF VARIOUS SALTS ON THE GERMINATION AND EARLY SEEDLING GROWTH OF A GRAIN SORGHUM CULTIVAR A Thesis by JOSE RAMON NUNEZ Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE December 1977 Major Subject: Plant Physiology THE INFLUENCE OF DIFFERENT CONCENTRATIONS OF VARIOUS SALTS ON THE GERMINATION AND EARLY SEEDLING GROWTH OF A GRAIN SORGHUM CULTIVAR A Thesis by JOSE RAMON...

Nunez, Jose Ramon

2012-06-07T23:59:59.000Z

443

The effect of four methods of processing sorghum grain on the energy and protein digestibility in growing swine  

E-Print Network [OSTI]

Feed Company and Elanco Products Co. , Phoenix, Arizona. Hastings, W. H. , G. D. Miller and G, M. Ward. 1962. Processing sorghum grains. Trans. Am. Soc. Agr. Engr. 5:96. Hintz, H. F. and W. N. Garrett. 1967. Steam pressure processing and pelleting... grain have been widely demonstrated for several years in the cattle feeding industry. Several workers (Garrett, 1965; Hale, 1965; and Husted, et aI. , 1968) have consistently shown improved daily gains, feed efficiencies and energy digestibility...

Brzozowski, Glenn Ray

1971-01-01T23:59:59.000Z

444

Innovation in practice: Philips Applied Technologies  

Science Journals Connector (OSTI)

Different business environments within Philips demand different innovation approaches. In a high-tech business-to-business environment with demanding lead customers, innovation is driven by customer intimacy. In a fast-moving business-to-consumer environment, a combination of consumer marketing intelligence and technology is required, captured in a clear process to meet the critical time-to-market requirements. Innovation outside the existing business scope of the regular Philips divisions is handled separately. The role of Philips Applied Technologies (Apptech) is described, including competencies and processes. The central questions addressed in this paper are: 'Which innovation models are being used by Philips?' and 'What is the role of Apptech in the innovation processes and how does Apptech effectuate its role?' An open approach is evolving wherein innovation is performed in international networks of partners in new markets and with complementary skills. Assuming the task of integrator in such a network, entrepreneurs and lead customers complete the current technical and process-oriented capabilities of Apptech.

John Van Den Elst; Ronald Tol; Ruud Smits

2006-01-01T23:59:59.000Z

445

40Ar/39Ar dating of microgram feldspar grains from the paired feldspathic achondrites GRA 06128 and 06129  

Science Journals Connector (OSTI)

Abstract 40Ar/39Ar ages of single feldspar grains from the paired meteorites Graves Nunatak 06128 (GRA8; 8 grains) and 06129 (GRA9; 26 grains) are presented. Plateau ages (?70% of the 39Ar released) ranged from 4000 to 4600 Ma with an average 1-? uncertainty of ±90 Ma. The most precise ages obtained were 4267 ± 17 Ma for a grain from GRA8 and 4437 ± 19 Ma and 4321 ± 18 Ma for two grains from GRA9. Isotope correlation diagrams yield less precise ages ranging from 3800 to 5200 Ma with an average 1-? uncertainty of 250 Ma; they indicate a negligible trapped component. Plateau ages, integrated total fusion ages, and isochron ages are internally concordant at the 95% confidence level. The distribution of the plateau ages for GRA9 is bimodal with peaks at 4400 and 4300 Ma. In contrast, the plateau age distribution for GRA8 peaks at about 4260 Ma with broad wings extending toward younger and older ages. To explain the distributions of grain ages we prefer a scenario that includes a major post-formation event about 4400 Ma ago and a later melt intrusion event that heated GRA8 more than some parts of GRA9.

Fara N. Lindsay; Gregory F. Herzog; Jisun Park; Jeremy S. Delaney; Brent D. Turrin; Carl C. Swisher III

2014-01-01T23:59:59.000Z

446

Microstructure of tricalcium silicate and Portland cement systems at middle periods of hydration-development of Hadley grains  

Science Journals Connector (OSTI)

The development of the microstructure of C3S paste and a Portland cement paste was studied between 7 and 24 h by means of backscattered electrons in a field-emission SEM. The course of hydration was measured by isothermal calorimetry. While the abundant occurrence of Hadley grains (hollow-shells) in Portland cement systems is well documented from a number of SEM and other microscopy studies, some earlier reports have noted that Hadley grains do not form in C3S or alite paste alone. This report shows evidence of Hadley grains in C3S paste, and follows their development from middle to late hydration stages. At around 10 h the microstructure with respect to Hadley grains were seen to develop in a very similar manner in C3S and cement. In both systems, a narrow gap often developed between the receding anhydrous cores and layer of reaction product enveloping the cores. By 1 day, Hadley grains had continued to develop only in the cement paste, where they became a prominent feature. Only small ‘hollowed-out’ hydration shells were observed in the C3S paste by 1 day. These were presumably reminiscences of the small gapped Hadley grains seen at the earlier hydration stages.

K.O. Kjellsen; B. Lagerblad

2007-01-01T23:59:59.000Z

447

Microstructure of tricalcium silicate and Portland cement systems at middle periods of hydration-development of Hadley grains  

SciTech Connect (OSTI)

The development of the microstructure of C{sub 3}S paste and a Portland cement paste was studied between 7 and 24 h by means of backscattered electrons in a field-emission SEM. The course of hydration was measured by isothermal calorimetry. While the abundant occurrence of Hadley grains (hollow-shells) in Portland cement systems is well documented from a number of SEM and other microscopy studies, some earlier reports have noted that Hadley grains do not form in C{sub 3}S or alite paste alone. This report shows evidence of Hadley grains in C{sub 3}S paste, and follows their development from middle to late hydration stages. At around 10 h the microstructure with respect to Hadley grains were seen to develop in a very similar manner in C{sub 3}S and cement. In both systems, a narrow gap often developed between the receding anhydrous cores and layer of reaction product enveloping the cores. By 1 day, Hadley grains had continued to develop only in the cement paste, where they became a prominent feature. Only small 'hollowed-out' hydration shells were observed in the C{sub 3}S paste by 1 day. These were presumably reminiscences of the small gapped Hadley grains seen at the earlier hydration stages.

Kjellsen, K.O. [Norcem A.S, Heidelberg Cement Group, N-3950 Brevik (Norway)]. E-mail: knut.kjellsen@norcem.no; Lagerblad, B. [Swedish Cement and Concrete Research Institute, S-100 44 Stockholm (Sweden)

2007-01-15T23:59:59.000Z

448

Page not found | Department of Energy  

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

61 - 7870 of 28,905 results. 61 - 7870 of 28,905 results. Download CX-004756: Categorical Exclusion Determination Arkansas Renewable Technology Rebate Fund - Holden-Connor Seed and Grain CX(s) Applied: A1, B5.1 Date: 12/17/2010 Location(s): Newport, Arkansas Office(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-004756-categorical-exclusion-determination Download CX-004753: Categorical Exclusion Determination State Energy Program: Training CX(s) Applied: A1, A9, B5.1 Date: 12/16/2010 Location(s): Maine Office(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-004753-categorical-exclusion-determination Download CX-004688: Categorical Exclusion Determination

449

Categorical Exclusion Determinations: Ohio | Department of Energy  

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

Ohio Ohio Categorical Exclusion Determinations: Ohio Location Categorical Exclusion Determinations issued for actions in Ohio. DOCUMENTS AVAILABLE FOR DOWNLOAD September 16, 2013 CX-010959: Categorical Exclusion Determination Chemical Looping Gasification for Hydrogen Enhanced Syngas Production with In-Situ Carbon Dioxide (CO2) Capture CX(s) Applied: B3.6 Date: 09/16/2013 Location(s): Ohio Offices(s): National Energy Technology Laboratory September 16, 2013 CX-010958: Categorical Exclusion Determination Bench Scale Development and Test of Aerogel Sorbent for Carbon Dioxide (CO2) Capture CX(s) Applied: B3.6 Date: 09/16/2013 Location(s): Ohio Offices(s): National Energy Technology Laboratory September 13, 2013 CX-010982: Categorical Exclusion Determination Mechanisms for Methane Transport and Hydrate Accumulation in Coarse-Grained

450

Categorical Exclusion Determinations: Mississippi | Department of Energy  

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

Mississippi Mississippi Categorical Exclusion Determinations: Mississippi Location Categorical Exclusion Determinations issued for actions in Mississippi. DOCUMENTS AVAILABLE FOR DOWNLOAD September 11, 2013 CX-011018: Categorical Exclusion Determination A Systematic Multiscale Modeling and Experimental Approach to Protect Grain Boundaries in Magnesium... CX(s) Applied: A9, B3.6 Date: 09/11/2013 Location(s): Mississippi Offices(s): National Energy Technology Laboratory June 24, 2013 CX-010511: Categorical Exclusion Determination Mississippi State University Sustainable Energy Research Center CX(s) Applied: A9, B3.6 Date: 06/24/2013 Location(s): Mississippi Offices(s): Golden Field Office October 18, 2012 CX-009463: Categorical Exclusion Determination Temporal Characterization of Hydrates System Dynamics Beneath Seafloor

451

Isotopic 32S/33S ratio as a diagnostic of presolar grains from novae  

E-Print Network [OSTI]

Measurements of sulphur isotopes in presolar grains can help to identify the astrophysical sites in which these grains were formed. A more precise thermonuclear rate of the 33S(p,gamma)34Cl reaction is required, however, to assess the diagnostic ability of sulphur isotopic ratios. We have studied the 33S(3He,d)34Cl proton-transfer reaction at 25 MeV using a high-resolution quadrupole-dipole-dipole-dipole magnetic spectrograph. Deuteron spectra were measured at ten scattering angles between 10 and 55 degrees. Twenty-four levels in 34Cl over Ex = 4.6 - 5.9 MeV were observed, including three levels for the first time. Proton spectroscopic factors were extracted for the first time for levels above the 33S+p threshold, spanning the energy range required for calculations of the thermonuclear 33S(p,gamma)34Cl rate in classical nova explosions. We have determined a new 33S(p,gamma)34Cl rate using a Monte Carlo method and have performed new hydrodynamic nova simulations to determine the impact on nova nucleosynthesis of remaining nuclear physics uncertainties in the reaction rate. We find that these uncertainties lead to a factor of less than 5 variation in the 33S(p,gamma)34Cl rate over typical nova peak temperatures, and variation in the ejected nova yields of S--Ca isotopes by less than 20%. In particular, the predicted 32S/33S ratio is 110 - 130 for the nova model considered, compared to 110 - 440 with previous rate uncertainties. As recent type II supernova models predict ratios of 130 - 200, the 32S/33S ratio may be used to distinguish between grains of nova and supernova origin.

A. Parikh; K. Wimmer; T. Faestermann; R. Hertenberger; J. Jose; H. -F. Wirth; C. Hinke; R. Krucken; D. Seiler; K. Steiger; K. Straub

2014-09-01T23:59:59.000Z

452

Determination of Grain Boundary Charging in Cu(In,Ga)Se2 Thin Films: Preprint  

SciTech Connect (OSTI)

Surface potential mapping of Cu(In,Ga)Se2 (CIGS) thin films using scanning Kelvin probe force microscopy (SKPFM) aims to understand the minority-carrier recombination at the grain boundaries (GBs) of this polycrystalline material by examining GB charging, which has resulted in a number of publications. However, the reported results are highly inconsistent. In this paper, we report on the potential mapping by measuring wide-bandgap or high-Ga-content films and by using a complementary atomic force microscopy-based electrical technique of scanning capacitance microscopy (SCM). The results demonstrate consistent, positively charged GBs on our high-quality films with minimal surface defects/charges. The potential image taken on a low-quality film with a 1.2-eV bandgap shows significantly degraded potential contrast on the GBs and degraded potential uniformity on grain surfaces, resulting from the surface defects/charges of the low-quality film. In contrast, the potential image on an improved high-quality film with the same wide bandgap shows significantly improved GB potential contrast and surface potential uniformity, indicating that the effect of surface defects is critical when examining GB charging using surface potential data. In addition, we discuss the effect of the SKPFM setup on the validity of potential measurement, to exclude possible artifacts due to improper SKPFM setups. The SKPFM results were corroborated by using SCM measurements on the films with a CdS buffer layer. The SCM image shows clear GB contrast, indicating different electrical impedance on the GB from the grain surface. Further, we found that the GB contrast disappeared when the CdS window layer was deposited after the CIGS film was exposed extensively to ambient, which was caused by the creation of CIGS surface defects by the ambient exposure.

Jiang, C. S.; Contreras, M. A.; Repins, I.; Moutinho, H. R.; Noufi, R.; Al-Jassim, M. M.

2012-06-01T23:59:59.000Z

453

A new modified-rate approach for gas-grain chemical simulations  

E-Print Network [OSTI]

Understanding grain-surface processes is crucial to interpreting the chemistry of the ISM. However, accurate surface chemistry models are computationally expensive and are difficult to integrate with gas-phase simulations. A new modified-rate method for solving grain-surface chemical systems is presented. Its purpose is accurately to model highly complex systems that can otherwise only be treated using the sometimes inadequate rate-equation approach. In contrast to previous rate-modification techniques, the functional form of the surface production rates was modified, and not simply the rate coefficient. This form is appropriate to the extreme "small-grain" limit, and can be verified using an analytical master-equation approach. Various further modifications were made to this basic form, to account for competition between processes, to improve estimates of surface occupation probabilities, and to allow a switch-over to the normal rate equations where these are applicable. The new method was tested against systems solved previously using exact techniques. Even the simplest method is quite accurate, and a great improvement over rate equations. Further modifications allow the master-equation results to be reproduced exactly for the methanol-producing system, within computational accuracy. Small discrepancies arise when non-zero activation energies are assumed for the methanol system, which result from complex reaction-competition processes that cannot be resolved easily without using exact methods. Inaccuracies in computed abundances are never greater than a few tens of percent, and typically of the order of one percent, in the most complex systems tested. Implementation of the method in simple networks, including hydrogen-only systems, is trivial, whilst the results are highly accurate.

R. T. Garrod

2008-09-17T23:59:59.000Z

454

Thermophilic Anaerobic Digestion to Increase the Net Energy Balance of Corn Grain Ethanol  

Science Journals Connector (OSTI)

Thermophilic Anaerobic Digestion to Increase the Net Energy Balance of Corn Grain Ethanol ... However, the calculation did not include the energetic costs to physically replace the evaporator with the integrated digester system (this will be a relatively small fraction of the energy input because the percentage of energy input per unit of ethanol energy output for construction of the entire conventional dry mill is 0.2% (4)); the improved quality in animal feed (DDG vs DDGS); nor the available waste heat from circumventing thin stillage evaporation. ...

Matthew T. Agler; Marcelo L. Garcia; Eric S. Lee; Martha Schlicher; Largus T. Angenent

2008-08-05T23:59:59.000Z

455

A comparison of silage and grain yields of four corn hybrids at three locations in Texas  

E-Print Network [OSTI]

corn }~bride and 3 spacings~ Teapleo ~b14 Tease Tesas 28 Texas 26 . hybrid I'. san . 05 level ul*. iu, Ve3 V. 4 Q ~ 2 8. 6 gal ~ 7 57o 5 5 q. 6 57. 1 43+4 54. 4 4. 3 89, 2 87. 1 x4. 3 88e7 92+4 n. s. 2 12 inches 18 inches 24... of variance of grain yields at Tyler. Source of variation Degrees of freedom sums of uares Nean uares Total Spacings (5) Replications (k) Error A Varieties (V) carp. vs. Texas hybrids Texas 26 vs. Texas 28 a 30 Texas 28 vs, Texas 30 V x 5...

Martelino, Rafael Agcaoili

2012-06-07T23:59:59.000Z

456

Characterization of Grain-Specific Peptide Markers for the Detection of Gluten by Mass Spectrometry  

Science Journals Connector (OSTI)

Katherine L. Fiedler , Sara C. McGrath , John H. Callahan , and Mark M. Ross * ... Gluten from wheat (Sigma), three single-grain flours, and seven commercial flours were obtained for this study: Duster wheat (hard red winter), King Arthur wheat (hard red), NIST standard reference material 1567a wheat (blend of hard red spring and hard red winter), Bob’s Red Mill (BRM) wheat (hard red spring), Post90 barley, BRM barley, Wheeler rye, BRM dark rye, BRM oat, and BRM GF oat. ...

Katherine L. Fiedler; Sara C. McGrath; John H. Callahan; Mark M. Ross

2014-05-27T23:59:59.000Z

457

Development of flaw accept/reject criteria for solid propellant rocket grains  

E-Print Network [OSTI]

OF SCIENCE May 1976 Major Subjects Aerospace Engineering DEVELOPMENT OF FLAW ACCEPT/REJECT CRITERIA FOR SOLID PROPELLANT ROCKET GRAINS A Thesis by JAMES JEROME ROTTER Approved as to style and content bys Head o Depar men Mem er Mem er May 1976 4... crack, ) Mathematically, dU & ~dAa dA dA where& U = internal strain energy A = area of one surface of the crack 10 ~ = s pec if ic surface energy density More recent advances in fracture mechanics have resulted from a detailed examination...

Rotter, James Jerome

2012-06-07T23:59:59.000Z

458

Seasonal Price Change and Costs of Storing Grain Sorghum in the Coastal Bend.  

E-Print Network [OSTI]

or to store it in commercial I elevators for later sale. During the harvest months of -- June and July, the grain sorghum price in the Coastal E Bend usually is similar to the average Texas price, with the June price slightly above and the July price... slightly below the State price. After July the Coastal Bend " prices move away from, and above, the average Texas price. If price later in the season moves above the har- vest price by an amount that more than covers the farmer's storage costs, he...

Whitney, Howard S.; Moore, Clarence A.

1957-01-01T23:59:59.000Z

459

International trade in grains and cotton: a market share-Markov chain analysis  

E-Print Network [OSTI]

entropy measure is a measure of the concentration level between the various areas of the world . All the countries of the world (1 50) were allocated into geographic areas which were determined to be: North and Centra1 America, South America, Europe.... In particular, confirmation of the rise of Europe as a major exporting area and the decline in the number of developing countries in the export market was found. The results ob- tained from the import data show that grain sorghum was the only commodity (of...

Seelig, Leonard Robert

2012-06-07T23:59:59.000Z

460

The effect of the time of inoculation with Maize Dwarf Mosaic Virus on grain sorghum  

E-Print Network [OSTI]

the effect of the time of inoculation with Maize Dwarf Mosaic Virus on some agronomic charac- teristics of a tolerant and a susceptible grain sorghum hybrid. A completely randomized block design with three replications was util- ized, Mass inoculation.... The magn ?. 'tu. :e of the effects of tl e viru' was dependent tl. e particular hybz. id and the time of inoculation. As expected, the toLerant hybrid was affected to s. esser degree than the susceptible hybrid. Tn general, the earlier in the growth...

Batte, Robert Dan

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

The Plant Variety Protection Act: Information for Texas Small Grain Producers  

E-Print Network [OSTI]

also are protected by Title V of the Federal Seed Act. Under Title V, sales of non-certified seed of Title V pro- tected varieties are illegal. Can a protected variety be legally sold or bought as Variety Not Stated (VNS) wheat seed? No. The PVPA... to plant their own holdings (land they own, rent or lease) or, if planting plans changes, sell this amount of saved seed to neighbors. All seed sales must com- ply with state laws, including Title V. Information for Texas Small Grain Producers ? 1994...

Brown, Steve; Morgan, Gaylon

2005-01-26T23:59:59.000Z

462

Gas-Mediated Impact Dynamics in Fine-Grained Granular Materials  

E-Print Network [OSTI]

Non-cohesive granular media exhibit complex responses to sudden impact that often differ from those of ordinary solids and liquids. We investigate how this response is mediated by the presence of interstitial gas between the grains. Using high-speed x-ray radiography we track the motion of a steel sphere through the interior of a bed of fine, loose granular material. We find a crossover from nearly incompressible, fluid-like behavior at atmospheric pressure to a highly compressible, dissipative response once most of the gas is evacuated. We discuss these results in light of recent proposals for the drag force in granular media.

John R. Royer; Eric I. Corwin; Peter J. Eng; Heinrich M. Jaeger

2007-07-17T23:59:59.000Z

463

Effect of different methods of processing grain sorghum on feedlot performance and carcass characteristics of lambs  

E-Print Network [OSTI]

of the test and various carcass characteristics determined. Lambs fed steam-flaked grain were sign1ficantly below the other groups in dressing percent and were generally lower in conformation, quality, and leg conformation. They were also sign1f1cantly...- finely ground shelled corn, steam cooked at about 250 F for 30 min, then rolled into ribbons and dried; crumbled - same as flaked except flakes pelleted then rolled to get crumbles. The average increases in efficiency for lambs over the control were 8...

Skrivanek, Joseph John

1976-01-01T23:59:59.000Z

464

E-Print Network 3.0 - applied clay mineralogy Sample Search Results  

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

3. Thin... from Utah, United States) were used to evaluate the effect of mineralogy on permeability. The choice... of three different types of sandstones that differ in grain...

465

Roadmap: Applied Engineering Manufacturing Systems Bachelor of Science  

E-Print Network [OSTI]

Roadmap: Applied Engineering ­ Manufacturing Systems ­ Bachelor of Science [AT 15000 Introduction to Human Communication 3 Fulfills Kent Core Additional Kent Core Requirement 3 See #12;Roadmap: Applied Engineering ­ Manufacturing Systems ­ Bachelor of Science [AT

Sheridan, Scott

466

DOE - Office of Legacy Management -- Case School of Applied Science...  

Office of Legacy Management (LM)

Case School of Applied Science Ohio State University - OH 0-01 FUSRAP Considered Sites Site: Case School of Applied Science, Ohio State University (OH.0-01 ) Eliminated from...

467

Applied Science and Technology Task Order Fiscal Year 2008 Year...  

Energy Savers [EERE]

8 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2008 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2008 Year-End...

468

Applied Science and Technology Task Order Fiscal Year 2009 Year...  

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

9 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2009 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2009 Year-End...

469

Applied Science and Technology Task Order Fiscal Year 2010 Year...  

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

0 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2010 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2010 Year-End...

470

Applied Science and Technology Task Order Fiscal Year 2011 Year...  

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

1 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2011 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2011 Year-End...

471

Research Blogs as a Tool for Applied Biodiversity Sciences  

E-Print Network [OSTI]

The Applied Biodiversity Sciences Perspectives Series is a student-directed collection of contributions from graduate student and faculty members of the integrative, NSF-IGERT Applied Biodiversity Sciences (ABS) program at Texas A&M University...

Petriello, Michael A

2014-10-07T23:59:59.000Z

472

The Faculty of Engineering and Applied Science Response to  

E-Print Network [OSTI]

: ................................................................................................12 Chemical Engineering/Engineering Chemistry ProgramsThe Faculty of Engineering and Applied Science Response to: Where Next? Toward a University Plan April 15, 2010 Revised October 27, 2010 #12;i Faculty of Engineering and Applied Science: Create

Linder, Tamás

473

X-Ray Photoelectron Spectroscopy (XPS) Applied to Soot & What...  

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

Photoelectron Spectroscopy (XPS) Applied to Soot & What It Can Do for You X-Ray Photoelectron Spectroscopy (XPS) Applied to Soot & What It Can Do for You Presentation given at DEER...

474

Roadmap: Applied Engineering Computer Engineering Technology -Bachelor of Science  

E-Print Network [OSTI]

Roadmap: Applied Engineering ­ Computer Engineering Technology - Bachelor of Science [AT Kent Core Summary on page 2 #12;Roadmap: Applied Engineering ­ Computer Engineering Technology-BS-AENG-CET] College of Applied Engineering, Sustainability and Technology Catalog Year: 2013-2014 Page 1 of 2 | Last

Khan, Javed I.

475

Roadmap: Applied Engineering Mechanical Engineering Technology Bachelor of Science  

E-Print Network [OSTI]

Roadmap: Applied Engineering ­ Mechanical Engineering Technology ­ Bachelor of Science [AT #12;Roadmap: Applied Engineering ­ Mechanical Engineering Technology ­ Bachelor of Science [AT-BS-AENG-MERT] College of Applied Engineering, Sustainability and Technology Catalog Year: 2013-2014 Page 1 of 2 | Last

Sheridan, Scott

476

MACHINE LEARNING AND MAPPING ALGORITHMS APPLIED TO PROTEOMICS PROBLEMS  

E-Print Network [OSTI]

MACHINE LEARNING AND MAPPING ALGORITHMS APPLIED TO PROTEOMICS PROBLEMS By William Shane Sanders;MACHINE LEARNING AND MAPPING ALGORITHMS APPLIED TO PROTEOMICS PROBLEMS By William Shane Sanders Approved Title of Study: MACHINE LEARNING AND MAPPING ALGORITHMS APPLIED TO PROTEOMICS PROBLEMS Pages in Study

Ray, David

477

Modeling sequence-specific polymers using anisotropic coarse-grained sites allows quantitative comparison with experiment  

E-Print Network [OSTI]

Certain sequences of peptoid polymers (synthetic analogs of peptides) assemble into bilayer nanosheets via a nonequilibrium assembly pathway of adsorption, compression, and collapse at an air-water interface. As with other large-scale dynamic processes in biology and materials science, understanding the details of this supramolecular assembly process requires a modeling approach that captures behavior on a wide range of length and time scales, from those on which individual sidechains fluctuate to those on which assemblies of polymers evolve. Here we demonstrate that a new coarse-grained modeling approach is accurate and computationally efficient enough to do so. Our approach uses only a minimal number of coarse-grained sites, but retains independently fluctuating orientational degrees of freedom for each site. These orientational degrees of freedom allow us to accurately parameterize both bonded and nonbonded interactions, and to generate all-atom configurations with sufficient accuracy to perform atomic scattering calculations and to interface with all-atom simulations. We have used this approach to reproduce all available experimental X-ray scattering spectra (for stacked nanosheets, and for peptoids adsorbed at air-water interfaces and in solution), in order to resolve the microscopic, real-space structures responsible for these Fourier-space features. By interfacing with all-atom simulations, we have also laid the foundations for future multiscale simulations of sequence-specific polymers that communicate in both directions across scales.

Thomas K. Haxton; Ranjan V. Mannige; Ronald N. Zuckermann; Stephen Whitelam

2014-09-30T23:59:59.000Z

478

Analytical modeling of elastic-plastic wave behavior near grain boundaries in crystalline materials  

SciTech Connect (OSTI)

It is well known that changes in material properties across an interface will produce differences in the behavior of reflected and transmitted waves. This is seen frequently in planar impact experiments, and to a lesser extent, oblique impacts. In anisotropic elastic materials, wave behavior as a function of direction is usually accomplished with the aid of velocity surfaces, a graphical method for predicting wave scattering configurations. They have expanded this method to account for inelastic deformation due to crystal plasticity. The set of derived equations could not be put into a characteristic form, but instead led to an implicit problem. to overcome this difficulty an algorithm was developed to search the parameters space defined by a wave normal vector, particle velocity vector, and a wave speed. A solution was said to exist when a set from this parameter space satisfied the governing vector equation. Using this technique they can predict the anisotropic elastic-plastic velocity surfaces and grain boundary scattering configuration for crystalline materials undergoing deformation by slip. Specifically, they have calculated the configuration of scattered elastic-plastic waves in anisotropic NiAl for an incident compressional wave propagating along a <111> direction and contacting a 45 degree inclined grain boundary and found that large amplitude transmitted waves exist owing to the fact that the wave surface geometry forces it to propagate near the zero Schmid factor direction <100>.

Loomis, Eric [Los Alamos National Laboratory; Greenfield, Scott [Los Alamos National Laboratory; Luo, Shengnian [Los Alamos National Laboratory; Swift, Damian [LLNL; Peralta, Pedro [ASU

2009-01-01T23:59:59.000Z

479

In-situ Phase transformation study in fine grained heat affected zone of Grade 91 steels  

SciTech Connect (OSTI)

Creep strength-enhanced ferritic (CSEF) steels such as the 9 Cr steel [ASTM A387 Grade 91] are widely used as tubing and piping in the new generation of fossil fired power plants. Microstructures in the fine-grained heat affected zone (FGHAZ) may significantly reduce creep strength leading Type IV failures. Current research suggest that reducing pre-weld tempering temperature from 760 C (HTT) to 650 C (LTT) has the potential to double the creep life of these welds. To understand this improvement, time-resolved X-ray diffraction (TRXRD) measurement with synchrotron radiation was used to characterize the microstructure evolution during fine grained heat-affected zone (HAZ) thermal cycling of grade 91 steel. The measurements showed both M23C6 (M=Fe, Cr) and MX (M=Nb, V; X=C,N) are present in the sample after the HTT condition. Near equilibrium fraction of M23C6 was measured in high temperature tempering condition (HTT, 760 C). However, the amount of M23C6 in LTT condition was very low since the diffraction peaks are close to the background. During simulated FGHAZ thermal cycling, the M23C6 partially dissolved in HTT sample. Interestingly, MX did not dissolve in both LTT and HTT samples. Hypothesis for correlation of M23C6 carbide distribution and pre-mature creep failure in FGHAZ will be made.

Babu, Sudarsanam Suresh [Ohio State University; Yamamoto, Yukinori [ORNL; Santella, Michael L [ORNL; Yu, Xinghua [ORNL; Komizo, Prof. Y [Osaka University; Terasaki, Prof. H [Osaka University

2014-01-01T23:59:59.000Z

480

Coarse-grained model for the interconversion between different crystalline cellulose allomorphs  

SciTech Connect (OSTI)

We present the results of Langevin dynamics simulations on a coarse grained model for crystalline cellulose. In particular, we analyze two different cellulose crystalline forms: cellulose I (the natural form of cellulose) and cellulose IIII (obtained after cellulose I is treated with anhydrous liquid ammonia). Cellulose IIII has been the focus of wide interest in the field of cellulosic biofuels as it can be efficiently hydrolyzed to glucose (its enzymatic degradation rates are up to 5 fold higher than those of cellulose I ). In turn, glucose can eventually be fermented into fuels. The coarse-grained model presented in this study is based on a simplified geometry and on an effective potential mimicking the changes in both intracrystalline hydrogen bonds and stacking interactions during the transition from cellulose I to cellulose IIII. The model accurately reproduces both structural and thermomechanical properties of cellulose I and IIII. The work presented herein describes the structural transition from cellulose I to cellulose IIII as driven by the change in the equilibrium state of two degrees of freedom in the cellulose chains. The structural transition from cellulose I to cellulose IIII is essentially reduced to a search for optimal spatial arrangement of the cellulose chains.

Langan, Paul [ORNL

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "grain cxs applied" 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

Deep Spitzer spectroscopy of the `Flying Saucer' edge-on disk: Large grains beyond 50 AU  

E-Print Network [OSTI]

We present deep Spitzer-IRS low-resolution (lambda/Delta lambda ~ 100) 5-35 micron spectroscopy of the edge-on disk ``the Flying Saucer'' (2MASS J16281370-2431391) in the Ophiuchus molecular cloud. The spectral energy distribution exhibits the characteristic two-peak shape predicted for a circumstellar disk viewed very close to edge-on. The short-wavelength peak is entirely due to photons scattered off the surface of the disk, while the long-wavelength peak is due to thermal emission from the disk itself. The Spitzer spectrum represents the first spectroscopic detection of scattered light out to 15 micron from a bona-fide, isolated edge-on disk around a T Tauri star. The depth and the wavelength of the mid-infrared "valley" of the SED give direct constraints on the size distribution of large grains in the disk. Using a 2D continuum radiative transfer model, we find that a significant amount of 5-10 micron-sized grains is required in the surface layers of the disk at radii of 50-300 AU. The detection of relati...

Pontoppidan, K M; Blake, G A; Van Dishoeck, E F; Dullemond, C P; Pontoppidan, Klaus M.; Stapelfeldt, Karl R.; Blake, Geoffrey A.; Dishoeck, Ewine F. van; Dullemond, Cornelis P.

2007-01-01T23:59:59.000Z

482

Grain boundary defects initiation at the outer surface of dissimilar welds: Corrosion mechanism studies  

SciTech Connect (OSTI)

Dissimilar welds located on the primary coolant system of the French PWR plants exhibit grain boundary defects in the true austenitic zones of the first buttering layer. If grain boundaries reach the interface, they can extend to the martensitic band. Those defects are filled with compact oxides. In addition, the ferritic base metal presents some pits along the interface. Nowadays, three mechanisms are proposed to explain the initiation of those defects: stress corrosion cracking, intergranular corrosion and high temperature intergranular oxidation. This paper is dealing with the study of the mechanisms involved in the corrosion phenomenon. Intergranular corrosion tests performed on different materials show that only the first buttering layer, even with some {delta} ferrite, is sensitized. The results of stress corrosion cracking tests in water solutions show that intergranular cracking is possible on a bulk material representative of the first buttering layer. It is unlikely on actual dissimilar welds where the ferritic base metal protects the first austenitic layer by galvanic coupling. Therefore, the stress corrosion cracking assumption cannot explain the initiation of the defects in aqueous environment. The results of the investigations and of the corrosion studies led to the conclusion that the atmosphere could be the only possible aggressive environment. This conclusion is based on natural atmospheric exposure and accelerated corrosion tests carried out with SO{sub 2} additions in controlled atmosphere. They both induce a severe intergranular corrosion on true sensitized austenitic materials.

Bouvier, O. De; Yrieix, B. [Electricite De France, Moret Sur Loing (France). Research and Development Division

1995-12-31T23:59:59.000Z

483

Rapid formation of large dust grains in the luminous supernova SN 2010jl  

E-Print Network [OSTI]

The origin of dust in galaxies is still a mystery. The majority of the refractory elements are produced in supernova explosions but it is unclear how and where dust grains condense and grow, and how they avoid destruction in the harsh environments of star-forming galaxies. The recent detection of 0.1-0.5 solar masses of dust in nearby supernova remnants suggests in situ dust formation, while other observations reveal very little dust in supernovae the first few years after explosion. Observations of the bright SN 2010jl have been interpreted as pre-existing dust, dust formation or no dust at all. Here we report the rapid (40-240 days) formation of dust in its dense circumstellar medium. The wavelength dependent extinction of this dust reveals the presence of very large (> 1 micron) grains, which are resistant to destructive processes. At later times (500-900 days), the near-IR thermal emission shows an accelerated growth in dust mass, marking the transition of the supernova from a circumstellar- to an ejecta-...

Gall, Christa; Watson, Darach; Dwek, Eli; Maund, Justyn R; Fox, Ori; Leloudas, Giorgos; Malesani, Daniele; Day-Jones, Avril C

2014-01-01T23:59:59.000Z

484

Uptake of 137Cs by Leafy Vegetables and Grains from Calcareous Soils  

SciTech Connect (OSTI)

Cesium-137 was deposited on Bikini Island at Bikini Atoll in 1954 as a result of nuclear testing and has been transported and cycled in the ecosystem ever since. Atoll soils are of marine origin and are almost pure CaCO{sub 3} with high concentrations of organic matter in the top 40 cm. Data from previous experiments with mature fruit trees show very high transfer factors (TF's), [Bq g{sup -1} plant/ Bq g{sup -1} soil, both in dry weight] into fruits from atoll calcareous soil. These TF's are much higher than reported for continental, silica-based soils. In this report TF's for 5 types of leafy vegetable crops and 2 types of grain crops are provided for use in predictive dose assessments and for comparison with other data from other investigators working with other types of soil in the IAEA CRP ''The Classification of Soil Systems on the Basis of Transfer Factors of Radionuclides from Soil to Reference Plants''. Transfer factors for plants grown on calcareous soil are again very high relative to clay-containing soils and range from 23 to 39 for grain crops and 21 to 113 for leafy vegetables. Results from these experiments, in this unique, high pH, high organic content, low potassium (K) soil, provide a boundary condition for models relating soil properties to TF.

Robison, W; Hamilton, T; Conrado, C; Kehl, S

2004-04-19T23:59:59.000Z

485

A New Determination of the Binding Energy of Atomic Oxygen on Dust Grain Surfaces: Experimental Results and Simulations  

E-Print Network [OSTI]

The energy to desorb atomic oxygen from an interstellar dust grain surface, $E_{\\rm des}$, is an important controlling parameter in gas-grain models; its value impacts the temperature range over which oxygen resides on a dust grain. However, no prior measurement has been done of the desorption energy. We report the first direct measurement of $E_{\\rm des}$ for atomic oxygen from dust grain analogs. The values of $E_{\\rm des}$ are $1660\\pm 60$~K and $1850\\pm 90$~K for porous amorphous water ice and for a bare amorphous silicate film, respectively, or about twice the value previously adopted in simulations of the chemical evolution of a cloud. We use the new values to study oxygen chemistry as a function of depth in a molecular cloud. For $n=10^4$ cm$^{-3}$ and $G_0$=10$^2$ ($G_0$=1 is the average local interstellar radiation field), the main result of the adoption of the higher oxygen binding energy is that H$_2$O can form on grains at lower visual extinction $A_{\\rm V}$, closer to the cloud surface. A higher ...

He, Jiao; Hopkins, Tyler; Vidali, Gianfranco; Kaufman, Michael J

2015-01-01T23:59:59.000Z

486

Irradiation-assisted stress corrosion cracking of materials from commercial BWRs: Role of grain-boundary microchemistry  

SciTech Connect (OSTI)

Constant-extension-rate tensile tests and grain-boundary analysis by Auger electron spectroscopy which were conducted on high- and commercial-purity (HP and CP) Type 304 stainless steel (SS) specimens from irradiated boiling-water reactor (BWR) components to determine susceptibility to irradiation-assisted stress corrosion cracking (IASCC) and to identify the mechanisms of intergranular failure. The susceptibility of HP neutron absorber tubes to intergranular stress corrosion cracking (IGSCC) was higher than that of CP absorber tubes or CP control blade sheath. Contrary to previous beliefs, susceptibility to intergranular fracture could not be correlated with radiation-induced segregation of impurities such as Si, P, C, N, or S, but a correlation was obtained with grain-boundary Cr concentration, indicating a role for Cr depletion that promotes IASCC. Detailed analysis of grain-boundary chemistry was conducted on neutron absorber tubes that were fabricated from two similar heats of HP Type 304 SS of virtually identical bulk chemical composition but exhibiting a significant difference in susceptibility to IGSCC for similar fluence. Grain-boundary concentrations of Cr, Ni, Si, P, S, and C in the crack-resistant and susceptible HP heats were virtually identical. However, grain boundaries of the cracking-resistant material contained less N and more B and Li (transmutation product from B) than those of the crack-susceptible material, indicating beneficial effects of low N and high B contents.

Chung, H.M.; Ruther, W.E.; Sanecki, J.E.; Hins, A.G.; Kassner, T.F.

1993-12-01T23:59:59.000Z

487

Applying Innovation System Concept in Agricultural Research for  

Open Energy Info (EERE)

Applying Innovation System Concept in Agricultural Research for Applying Innovation System Concept in Agricultural Research for Development: A learning module Jump to: navigation, search Tool Summary Name: Applying Innovation System Concept in Agricultural Research for Development: A learning module Agency/Company /Organization: International Livestock Research Institute Sector: Land Focus Area: Agriculture Topics: Policies/deployment programs Resource Type: Training materials Website: mahider.ilri.org/bitstream/10568/167/1/Innovation_System_Agric_LM.pdf Applying Innovation System Concept in Agricultural Research for Development: A learning module Screenshot References: Applying Innovation System Concept in Agricultural Research for Development: A learning module[1] Preface "Sustained agricultural growth requires, among others, increased

488

Vehicle Technologies Office: Lightweight Materials Long-Term Applied  

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

Long-Term Applied Research: Magnesium and Carbon Fiber to someone by E-mail Long-Term Applied Research: Magnesium and Carbon Fiber to someone by E-mail Share Vehicle Technologies Office: Lightweight Materials Long-Term Applied Research: Magnesium and Carbon Fiber on Facebook Tweet about Vehicle Technologies Office: Lightweight Materials Long-Term Applied Research: Magnesium and Carbon Fiber on Twitter Bookmark Vehicle Technologies Office: Lightweight Materials Long-Term Applied Research: Magnesium and Carbon Fiber on Google Bookmark Vehicle Technologies Office: Lightweight Materials Long-Term Applied Research: Magnesium and Carbon Fiber on Delicious Rank Vehicle Technologies Office: Lightweight Materials Long-Term Applied Research: Magnesium and Carbon Fiber on Digg Find More places to share Vehicle Technologies Office: Lightweight

489

Study of grain boundary segregation using the Auger electron emission technique. Annual Technical Progress Report January 1, 1979-December 31, 1979  

SciTech Connect (OSTI)

The influence of grain boundary chemical composition on hydrogen embrittlement was investigated. Auger electron spectroscopy was employed to determine the grain boundary compositions of nickel-copper alloys containing various concentrations of phosphorus and subjected to various thermal treatments. Phosphorus segregates to grain boundaries during slow cooling, accompanied by reduced concentrations of grain boundary copper. Tensile tests were conducted in air and following cathodic charging with hydrogen. All samples tested in air exhibited a completely ductile fracture; ductility was insensitive to grain boundary composition. Fractures of hydrogen-charged samples were brittle and intergranular; elongation to fracture increased significantly with increasing concentration of grain boundary phosphorus. The influence of phosphorus segregation on embrittlement by hydrogen or by mercury (reported previously) is analyzed in terms of additive and interactive mechanisms. A mechanism based on reduced embrittler concentration at the site of bond rupture due to improved atomic packing is proposed and found to be consistent with the experimental results of this and other investigations.

Stein, D. F.; Heldt, L. A.; Funkenbusch, A. W.

1980-01-01T23:59:59.000Z

490

Comminution process to produce engineered wood particles of uniform size and shape with disrupted grain structure from veneer  

DOE Patents [OSTI]

Comminution process of wood veneer to produce wood particles, by feeding wood veneer in a direction of travel substantially normal to grain through a counter rotating pair of intermeshing arrays of cutting discs arrayed axially perpendicular to the direction of veneer travel, wherein the cutting discs have a uniform thickness (Td), to produce wood particles characterized by a length dimension (L) substantially equal to the Td and aligned substantially parallel to grain, a width dimension (W) normal to L and aligned cross grain, and a height dimension (H) substantially equal to the veneer thickness (Tv) and aligned normal to W and L, wherein the W.times.H dimensions define a pair of substantially parallel end surfaces with end checking between crosscut fibers.

Dooley, James H; Lanning, David N

2013-07-30T23:59:59.000Z

491

Study of the interaction of solutes with ?5 (013) tilt grain boundaries in iron using density-functional theory  

SciTech Connect (OSTI)

Substitutional alloying elements significantly affect the recrystallization and austenite-ferrite phase transformation rates in steels. The atomistic mechanisms of their interaction with the interfaces are still largely unexplored. Using density functional theory, we determine the segregation energies between commonly used alloying elements and the ?5 (013) tilt grain boundary in bcc iron. We find a strong solute-grain boundary interaction for Nb, Mo, and Ti that is consistent with experimental observations of the effects of these alloying elements on delaying recrystallization and the austenite-to-ferrite transformation in low-carbon steels. In addition, we compute the solute-solute interactions as a function of solute pair distance in the grain boundary, which suggest co-segregation for these large solutes at intermediate distances in striking contrast to the bulk.

Jin, Hao; Militzer, Matthias [Centre for Metallurgical Process Engineering, The University of British Columbia, Vancouver, British Columbia V6T 1Z4 (Canada); Elfimov, Ilya [Quantum Matter Institute, The University of British Columbia, Vancouver, British Columbia V6T 1Z4 (Canada)

2014-03-07T23:59:59.000Z

492

Atomically flat La-silicate/Si interface using tungsten carbide gate electrode with nano-sized grain  

SciTech Connect (OSTI)

Interface properties of La-silicate gate dielectrics on Si substrates with W or nano-sized grain W{sub 2}C gate electrodes have been investigated. A low interface state density of 2.5?×?10{sup 11}?cm{sup ?2}/eV has been achieved with W{sub 2}C gate electrodes, which is one third of those with W gate electrode. An interface roughness of 0.33?nm with spatial frequency comparable to the grain size of W gate electrode has been observed. Besides, an atomically flat interface of 0.12?nm has been obtained with W{sub 2}C gate electrode. The origin of flat interface may be attributed to the elimination of inhomogeneous stress by grains in metal electrode.

Tuokedaerhan, K.; Natori, K.; Iwai, H. [Frontier Research Center, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503 (Japan); Kakushima, K., E-mail: kakushima@ep.titech.ac.jp; Kataoka, Y.; Nishiyama, A.; Sugii, N.; Wakabayashi, H.; Tsutsui, K. [Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502 (Japan)

2014-01-13T23:59:59.000Z

493

Two-stage sintering inhibits abnormal grain growth during beta to alpha transformation in SiC  

SciTech Connect (OSTI)

Free sintering of SiC with Al, B, and C additions in two successive stages, first under nitrogen and then under argon, produced a near full-density ceramic with equiaxed grain structure. The beta to alpha transformation proceeded to completion; however, the grain shape remained equiaxed due to the action of nitrogen present during the first stage of sintering. It is found that the beta to alpha transformation is necessary but not sufficient for producing the microstructure of interlocking plates found in high-toughness SiC.

Kueck, Aaron M.; De Jonghe, Lutgard C.

2007-09-17T23:59:59.000Z

494

On the Second Law of Thermodynamics: The Significance of Coarse-Graining and the Role of Decoherence  

E-Print Network [OSTI]

We take up the question why the initial entropy in the universe was small, in the context of evolution of the entropy of a classical system. We note that coarse-graining is a an important aspect of entropy evaluation which can reverse the direction of the increase in entropy, i.e., the direction of thermodynamic arrow of time. Then we investigate the role of decoherence in the selection of coarse-graining and explain how to compute entropy for a decohered classical system. Finally, we argue that the requirement of low initial entropy imposes constraints on the decoherence process.

Noorbala, Mahdiyar

2014-01-01T23:59:59.000Z

495

Soil and Mold Influences on Fe and Zn Concentrations of Sorghum Grain in Mali, West Africa  

E-Print Network [OSTI]

+ from soil and DTPA similarly complexes these labile forms. Several recent studies involving crops other than sorghum have shown that the concentration of Fe and Zn in the grain does not always consistently reflect DTPA- extractable Fe and Zn...) 22.6 (18.4) 6.60 (3.99) 2.16 (1.20) 15-30 5.96 (0.54) 0.13 (0.13) 0.69 (0.15) 533 (89.9) -- 5.43 (1.44) 0.95 (0.55) Tiguere Field 1 0-15 6.24 (0.58) -- 1.33 (0.08) 590 (54.6) 12.8 (5.7) 7.75 (4.28) 2.78 (1.77) 15-30 5.61 (0...

Verbree, Cheryl

2012-10-19T23:59:59.000Z

496

Formation of molecular hydrogen on analogues of interstellar dust grains: experiments and modelling  

E-Print Network [OSTI]

Molecular hydrogen has an important role in the early stages of star formation as well as in the production of many other molecules that have been detected in the interstellar medium. In this review we show that it is now possible to study the formation of molecular hydrogen in simulated astrophysical environments. Since the formation of molecular hydrogen is believed to take place on dust grains, we show that surface science techniques such as thermal desorption and time-of-flight can be used to measure the recombination efficiency, the kinetics of reaction and the dynamics of desorption. The analysis of the experimental results using rate equations gives useful insight on the mechanisms of reaction and yields values of parameters that are used in theoretical models of interstellar cloud chemistry.

Gianfranco Vidali; Joe Roser; Giulio Manico; Valerio Pirronello; Hagai B. Perets; Ofer Biham

2005-04-25T23:59:59.000Z

497

Nutritional value of weather damaged sorghum grain for lactating dairy cattle  

E-Print Network [OSTI]

pri!duc in~ abi 1 lty of dairy c """i&, oy s&l on 1' . & nt 1 OL rou&~ha& es and other b&&- pT'Gduc ts u!&eit f ot hi&icon con -uiipt ion with cereal grains a!id other i! ei& t & age feedstuff s . . . u it ah' e for hLjmQI'j coil. !umpt '. o, I...a &i? ass, hay, f if' i c cow ppes ?. -, o "?jhum, s&&eet co?a+ceo, pe;ans, a Imond:;, sr&&. :i3. n?to i I'? ll&: i' ?s?wo3ruits, opr'?pi ppcr, cjiili pow&jer, and wir c ha;&& ?teen resorted to 3e contaminated (~a& . I:& i d i'-;. ;. I& pr...

Brian, Ronald Craig

2012-06-07T23:59:59.000Z

498

Manufacture and properties of continuous grain flow crankshafts for locomotive and power generation diesel engines  

SciTech Connect (OSTI)

The bulk of the large crankshaft production volume is associated with the medium speed diesel engine market. These engines have seen intense development to obtain higher power outputs without change in the physical size of the crankshaft and at the same time there has been continuing pressure to reduce costs. Fatigue and bearing normal wear are the major technical hurdles that threaten the crankshaft life, and measures for dealing with these issues are described. Continuous grain flow (CGF) crankshafts are responsible for the continued integrity of these enhanced power output engines and the production of these crankshafts is described. Comparisons are made with the older slab forging crankshaft production method. The demand for the medium speed diesel engine and its natural gas derivative is strong and supports an aggressive engine building industry serving locomotive, marine and power generation markets. This demand in turn relies on practical national standards that serve the needs of the engine builder, material supplier and the end user.

Antos, D.J.; Nisbett, E.G. [National Forge Co., Irvine, PA (United States)

1997-12-31T23:59:59.000Z

499

Coarse-grained entropy and causal holographic information in AdS/CFT  

E-Print Network [OSTI]

We propose bulk duals for certain coarse-grained entropies of boundary regions. The `one-point entropy' is defined in the conformal field theory by maximizing the entropy in a domain of dependence while fixing the one-point functions. We conjecture that this is dual to the area of the edge of the region causally accessible to the domain of dependence (i.e. the `causal holographic information' of Hubeny and Rangamani). The `future one-point entropy' is defined by generalizing this conjecture to future domains of dependence and their corresponding bulk regions. We show that the future one-point entropy obeys a nontrivial second law. If our conjecture is true, this answers the question "What is the field theory dual of Hawking's area theorem?"

William R. Kelly; Aron C. Wall

2014-04-01T23:59:59.000Z

500

A study of the nutritive value of sorghum grain with rats  

E-Print Network [OSTI]

S!'!?V &IH 7!'E RIITHI. Tip'T. . ' l?ATITE OP H')HGiiU~i& CHAIR I97TII HATS A Thesis by CAR OLEE KATI1RyiN DOHH Saba ittcd I. o the Graduate Coll ge of A&, II Dnivers! ty in p::rtiel fulfl11!ten of th? requires; nts for. the dInbr "e i f...'' suf P ' " cairn Hl iii 'flin ici 0", ai 0 lit(tain oi gb ' i ': ' il c'. aI !! od ! n on l Tprcvi" a' ''. i ii I!ie rilg:' . c ii 1! y I he & C'r Of Ilc ii !i &num i'irui il bri" I l:I i C':? file performance of rats fed the sorghum grain basal diet...

Dohm, Carolee Kathryn

2012-06-07T23:59:59.000Z