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1

Propylene feedstock: supply and demand  

SciTech Connect

The reasons for the global shortage in propylene in 1981-82 are discussed. The low running rates of ethylene production and refinery operation of which propylene is a byproduct accounts for the reduced propylene supplies. Low prices of the NCL have also shifted incentive from propylene to gas liquids. This situation will continue, with naptha/gas oil becoming the prefered feedstock for ethylene production. The speculative economics for propylene dehydrogenation are not sufficiently attractive for commercialization. But if a country has an internal market for propylene derivatives, production could have a positive influence on the economy. Thailand, Indonesia, Malaysia, and Mexico are suggested as examples.

Steinbaum, C.A.; Pickover, B.H.

1983-04-01T23:59:59.000Z

2

Optimization of Low-Level Controllers and High-Level Polymer Grade Changes  

E-Print Network (OSTI)

are based on Modelica models of both a gas-phase polyethy- lene reactor and the polyethylene plant PE3-gas flows are important. A Modelica library for the plant PE3 at Borealis AB, including three re- actors the Modelica library. Thanks also to Niclas Carlsson and Staffan Haugwitz at Borealis AB for answering numerous

Skogestad, Sigurd

3

Grade  

E-Print Network (OSTI)

OBJECTIVE. The purpose of this study was to correlate the degree of contrast enhancement on dynamic contrast-enhanced T1-weighted MRI and the relative cerebral blood volume (rCBV) values on T2*-weighted MRI in patients with high-grade brain neoplasms. SUBJECTS AND METHODS. Ten patients with biopsy-proven high-grade gliomas underwent dynamic contrast-enhanced MRI using T1-weighted fast spoiled gradient-echo technique (TR/TE, 8.3/1.5) during IV infusion of 0.1 mmol/kg of MR contrast medium. This sequence was followed within 5 minutes by dynamic susceptibility contrast (DSC) imaging (1,500/80) during IV infusion of 0.2 mmol/kg of MR contrast medium. Dynamic contrast-enhanced analysis was performed using the maximum-signal-intensity algorithm, and DSC analysis was performed using the negative enhancement integral program. For each tumor, we performed two comparisons: first, the average dynamic contrast-enhanced and rCBV values within a region of interest drawn around the entire contrast-enhancing tumor on a single image through the center of the lesion and, second, the highest dynamic contrast-enhanced and highest rCBV values within each tumor. Statistical analyses of the first comparison were performed using Pearson’s correlation coefficient, R 2 correlation coefficient, and Spearman’s rank correlation

James M. Provenzale; Gerald York; Marcelo Galvez Moya; Lauren Parks; Michael Choma; Susan Kealey; Patricia Cole; Humaira Serajuddin; J. M. Provenzale

2004-01-01T23:59:59.000Z

4

Oxidation of propylene over copper oxide catalysts  

E-Print Network (OSTI)

to the study of propylene oxidation. Dunlop (17) reported that small quantities of iron compounds substantially enhanced the catalytic activity of chromia-alumina catalysts with respect to propylene oxidation, Woodharn (72) has suggested that under... between 360 C and 430oC the rate of propane oxidation decreases as the teznperature is increased, and the rate of conversion to olefins, especially propylene, becomes progressively greater. Above 430 C the proportion of propane converted to ethylene in...

Billingsley, David Stuart

2012-06-07T23:59:59.000Z

5

Green method to produce propylene oxide  

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

Materials Materials Argonne National Laboratory Center for Nanoscale Materials U.S. Department of Energy Search CNM ... Search Argonne Home > Center for Nanoscale Materials > CNM Home About CNM Research Facilities People For Users Publications News & Highlights News Research Highlights Newsletters CNM Images on Flickr Events Jobs CNM Users Organization Contact Us Other DOE Nanoscale Science Research Centers Green method to produce propylene oxide conversion of propylene to polyene oxide via silver nanoclusters Simulation of propylene to propylene oxide conversion via silver nanoclusters supported on an alumina surface. Propylene oxide is an important chemical whose current industrial production is energy intensive and environmentally unfriendly. Attempts to solve this problem by using catalysts based on bulk silver surfaces with

6

Propylene chlorohydrins: toxicology, metabolism, and environmental fate  

Science Journals Connector (OSTI)

Propylene chlorohydrins is a general term for two isomeric chemicals, 1-chloro-2-propanol (1-CP) and 2-chloro-l-propanol (2-CP). The background information on the molecular structures, synonyms, and chemical a...

Raymond S. H. Yang

1987-01-01T23:59:59.000Z

7

NOVEL FUNCTIONAL ETHYLENE/PROPYLENE ELASTOMERS: SYNTHESIS AND CHARACTERIZATION.  

E-Print Network (OSTI)

??AbstractThis thesis discusses novel chemical approaches to prepare functional ethylene/propylene elastomers. The chemistry involves the preparation of poly(ethylene-co-propylene) reactive intermediate in which the reactive groups… (more)

Kandil, Usama

2005-01-01T23:59:59.000Z

8

Fusion of Isotactic Poly(propylene)  

Science Journals Connector (OSTI)

Fusion of Isotactic Poly(propylene) ... They involve, among others, the accurate determination of the structural regularity of the chain, interpretation of the multiple endothermic peaks that are invariably exhibited during the fusion of this polymer, use of sufficiently high molecular weight samples, and the heating rates. ... Rather, we wish to report a unique feature of the fusion of isotactic poly(propylene) that not only has direct bearing in determining the observed melting temperature Tm of a sample crystallized under given conditions, and thus the extrapolation procedures, but is of importance and significance in itself. ...

Tracy W. Huang; Rufina G. Alamo; Leo Mandelkern

1999-08-25T23:59:59.000Z

9

The catalytic oxidation of propane and propylene with air: total aldehyde production and selectivity at low conversions.  

E-Print Network (OSTI)

~ Ths writer is izntebteg to pr, P G~ ~och Tor his assistance azsi guidance in this work aC to Br~ J+ 9 Kinds Tor his aery. suggestions eel Succor~ a The oxidation cf propane~ propylene and prcya~cregyimm mbetccres ctver a ~ aiucdna ~st in a flew... formation of aldehyde fran pure grade propane The ~ce of Within the range of variables of this investigation and with propylene ~& aldehyde pr~cn was f'ennd to bs independent of" residence Qorrcgations relating aldehyde pressure to ~ and cncygsn pressure...

Looney, Franklin Sittig

2012-06-07T23:59:59.000Z

10

Silicate stabilization studies in propylene glycol  

SciTech Connect

In most North American and many European coolant formulations, the corrosion inhibition of heat-rejecting aluminum surfaces is provided by alkali metal silicates. But, their tendency towards polymerization, leading to gelation and/or precipitation, can reduce the effectiveness of a coolant. This paper presents the results of experiments which illustrate formulation-dependent behavior of inorganic silicate in propylene glycol compositions. Specific examples of the effects of glycol matrix, stabilizer type, and hard water on silicate stabilization are provided.

Schwartz, S.A. [ARCO Chemical Co., Newtown Square, PA (United States)

1999-08-01T23:59:59.000Z

11

Adsorptive separation of propylene-propane mixtures  

SciTech Connect

The separation of propylene-propane mixtures is of great commercial importance and is carried out by fractional distillation. It is claimed to be the most energy-intensive distillation practiced in the United States. The purpose of this paper is to describe experimental work that suggests a practical alternative to distillation for separating the C[sub 3] hydrocarbons: adsorption. As studied, the process involves three adsorptive steps: initial separation with molecular sieves with heavy dilution with an inert gas; separation of propylene and propane separately from the inert gas, using activated carbon; and drying of the product streams with any of several available desiccants. The research information presented here deals with the initial step and includes both equilibrium and kinetic data. Isotherms are provided for propylene and propane adsorbed on three zeolites, activated alumina, silica gel, and coconut-based activated carbon. Breakthrough data are provided for both adsorption and regeneration steps for the zeolites, which were found to be superior to the other adsorbents for breakthrough separations. A flow diagram for the complete proposed process is included.

Jaervelin, H.; Fair, J.R. (Univ. of Texas, Austin, TX (United States))

1993-10-01T23:59:59.000Z

12

New ?-Complexation Adsorbents for Propane?Propylene Separation  

Science Journals Connector (OSTI)

1-4 Some new materials were also reported to adsorb propylene, excluding partially or totally propane. ... Table 2.? Experimental Conditions (Masses of Adsorbent and Flow Rates) for Breakthrough Curves, Stoichiometric Times, and Adsorbed Phase Concentration ... Figure 8 Propylene?propane ratio of the amount adsorbed at 343 K in the different adsorbents. ...

Carlos A. Grande; José D. P. Araujo; Simone Cavenati; Norberto Firpo; Elena Basaldella; Alírio E. Rodrigues

2004-05-26T23:59:59.000Z

13

Carcinogenicity of Industrial Chemicals Propylene Imine and Propane Sultone  

Science Journals Connector (OSTI)

... Range-finding experiments have shown that the maximal tolerated doses of propylene imine and propane sultone, in distilled water, administered by gavage twice a week to 6 week old ... levels, that is, 10 mg/kg for propylene imine, and 28 mg/kg for propane sultone, with groups of twenty-six male and twenty-six female rats at each ...

B. ULLAND; M. FINKELSTEIN; E. K. EISBURGER; J. M. RICE; J. H. WEISBURGER

1971-04-16T23:59:59.000Z

14

Hybrid adsorption-distillation process for separating propane and propylene  

SciTech Connect

The separation of propylene from a propane-propylene mixture by distillation is a energy-intensive process. A hybrid adsorption-distillation system has a great potential in reducing the energy consumption. A significant amount of energy can be saved relative to a process using only distillation, if a typical separation is carried out by distillation up to a propylene concentration of approximately 80% and then continuing the separation of propane from propylene by adsorption. A volumetric adsorption apparatus was designed to obtain the data at high pressures. The pure component data of propane and propylene were obtained on silica gel, molecular sieve 13X, and activated carbon. Although activated carbon has a greater capacity for both propane and propylene than either of the two adsorbents, it was only slightly selective for propylene. Silica gel has the greatest selectivity for propylene, which ranged from 2 to 4. None of the adsorbents was found to be selective for propane. The propane-propylene mixture behaved nonideally on the solid surface as indicated by the negative deviations of activity coefficients. The nonideality of the mixture can be attributed primarily to surface effects rather than to interactions between adsorbate molecules. A binary model has been proposed to predict mole fractions in the adsorbed phase and the total amount adsorbed from the pure component data. The pure component isotherm model of Hines et al. was extended to binary mixtures when the binary model was developed. Excellent agreement was obtained between experimental data and predicted values for mole fractions in the adsorbed phased, the total amount adsorbed, and adsorbed-phase activity coefficients.

Ghosh, T.K.; Lin, Hon-Da; Hines, A.L. (Univ. of Missouri, Columbia, MO (United States))

1993-10-01T23:59:59.000Z

15

Selective adsorption of ethylene over ethane and propylene over...  

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

adsorption of ethylene over ethane and propylene over propane in the metal-organic frameworks M2(dobdc) (M Mg, Mn, Fe, Co, Ni, Zn) Previous Next List Stephen J. Geier, Jarad A....

16

Industry trends indicate need to optimize propylene yield will grow  

SciTech Connect

Most new steam crackers will be based mainly on ethane feed. Therefore, it can be expected that the propylene price will approach the ethylene transfer price, particularly in Europe. Consequently, existing crackers using propane and heavier feedstocks will have to operate at lower severity to optimize the propylene yield. The most convenient way to control the P/E product ratio is the coil outlet temperature. Propylene yield is rather insensitive to hydrocarbon partial pressure (steam dilution and outlet pressure). It is also rather insensitive to the residence time of the cracking process. Operation at low steam dilution will be more economical when operating at low severity. Low-residence-time cracking saves on feed. However, feed savings are less for low severity than for high severity. The new, nontubular pyrolysis processes are no panacea for increasing the propylene yield. In certain cases, revamping to improve the propylene yield may be feasible. Normal paraffins give better ethylene yield than iso-paraffins and naphthenes. However, low-carbon-number iso-paraffins and also certain naphthenes have a very high propylene yield. In Europe, and to a lesser extent in Japan, virgin naphtha feedstocks will be replaced by reformer raffinates, naphthas without heartcut, etc. As more different feedstocks become available, the characterization and evaluation of feedstocks, together with process optimization using sophisticated tools, will become more important.

Mol, A.

1983-05-28T23:59:59.000Z

17

Gas Chromatographic Determination of the Products from the Catalytic Oxidation of Propylene to Acrolein  

Science Journals Connector (OSTI)

......dioxide, propylene, water, acetaldehyde, and...CATHODE AND HYDROGEN GENERATOR Figure 9. Conceptual...dioxide, propylene, water, acetaldehyde, and...been investigated at atmospheric pressure and in a tempera...acetaldehyde, and water. The formation of propional......

L. A. Th. Verhaar; S. P. Lankhuijzen

1970-08-01T23:59:59.000Z

18

ELECTROCHEMICAL STUDIES OF THE FILM FORMATION ON LITHIUM IN PROPYLENE CARBONATE SOLUTIONS UNDER OPEN CIRCUIT CONDITIONS  

E-Print Network (OSTI)

Propylene carbonate (Burdick and Jackson, Muskegon MI 49442; distilled in glass) was distilled in a low-pressure distillation

Geronov, Y.

2014-01-01T23:59:59.000Z

19

Poly(propylene)/Graphene Nanoplatelet Nanocomposites: Melt Rheological Behavior  

E-Print Network (OSTI)

* Introduction Modification of polymers by adding nanofillers as a second range of thermo- plastics, including poly(propylene) (PP),[15­19] polyethyl- ene,[20­22] poly, Z. Guo Integrated Composites Laboratory (ICL), Dan F. Smith Department of Chemical Engineering

Guo, John Zhanhu

20

Extraction of ethanol from water with liquid propylene  

SciTech Connect

To separate EtOH from water by distillation requires 40 to 50 times the minimum Gibbs free energy of mixing. Also, EtOH forms an azeotrope with water, limiting the EtOH purity to 92%. These considerations have prompted investigations of solvent extraction. This paper describes the use of liquid propylene as solvent. The process application is also described. (DLC)

Victor, J.G.

1983-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

Isobutane oxidation in the presence of a soluble propylene glycol/vanadium catalyst  

SciTech Connect

A method is described for oxidizing isobutane with an oxygen-containing material in the presence of an effective amount of a soluble propylene glycol/vanadium catalyst.

Sanderson, J.R.; Marquis, E.T.

1989-01-31T23:59:59.000Z

22

Chemical transformations during rectification of products of hydroformylation of propylene  

SciTech Connect

The occurrence of reactions related to losses of the target products, aldehydes and alcohols, was established in continuous rectification of the products of hydroformylation of propylene. The sections of the zone of primary occurrence of the reactions of aldol condensation, formation of acetals, and esterification of butyl alcohols with butyric acids were determined in the rectification column. It was shown that with increase in temperature in the rectification column still the degree of aldehyde and alcohol conversion in the overall rectification system decreases with respect to aldol condensation and acetal formation, while increasing with respect to alcohol esterification.

Kuz'mina, L.S.; Maiorova, L.V.; Kharisov, M.A.

1988-09-10T23:59:59.000Z

23

Novel adsorption distillation hybrid scheme for propane/propylene separation  

SciTech Connect

A novel adsorption-distillation hybrid scheme is proposed for propane/propylene separation. The suggested scheme has potential for saving up to [approximately]50% energy and [approximately]15-30% in capital costs as compared with current technology. The key concept of the proposed scheme is to separate olefins from alkanes by adsorption and then separate individual olefins and alkanes by simple distillation, thereby eliminating energy intensive and expensive olefin-alkane distillation. A conceptual flow schematic for the proposed hybrid scheme and potential savings are outlined.s

Kumar, R.; Golden, T.C.; White, T.R.; Rokicki, A. (Air Products an Chemicals, Inc., Allentown, PA (United States))

1992-12-01T23:59:59.000Z

24

Construction materials for reaction unit in the liquid-phase synthesis of propylene oxide  

SciTech Connect

The main components of the reaction medium in equipment for the synthesis of propylene oxide by liquid-phase oxidation of gaseous propylene with peracetic acid are propylene, peracetic acid, ethyl acetate, acetic acid, propylene oxide, carbon dioxide, oxygen, methane, and propylene glycol acetates. The operating conditions of the equipment and content of the main components of the medium are shown. Results are given for the investigation of the corrosion behavior of 12Kh18N10T, 10Kh17N13M2T, 08Kh22N6T, and 08Kh21N6M2T steels, AD0 and AD1 aluminum, and VT1-0 titanium. VSt3 carbon steel was tested for comparison.

Zaritskii, V.I.D.

1987-09-01T23:59:59.000Z

25

High-Shear-Rate Behavior of Radial Hydrogenated Styrene-Isoprene and Block Ethylene-Propylene Copolymer  

E-Print Network (OSTI)

High-Shear-Rate Behavior of Radial Hydrogenated Styrene-Isoprene and Block Ethylene additives (an ethylene-propylene block copolymer and a radial hydrogenated styrene-isoprene copolymer-isoprene copolymer and 1.5% for the ethylene-propylene additive, the viscosity was measured over a range of shear

Erickson, David

26

Investigation of Self-Assembly and Micelle Polarity for a Wide Range of Ethylene Oxide-Propylene Oxide-Ethylene  

E-Print Network (OSTI)

Investigation of Self-Assembly and Micelle Polarity for a Wide Range of Ethylene Oxide-Propylene Oxide-Ethylene Oxide Block Copolymers in Water Josias R. Lopes and Watson Loh* Instituto de Qui of 15 EO-PO-EO (EO ) ethylene oxide, PO ) propylene oxide) block copolymers by using three different

Loh, Watson

27

Influence of Ionic Surfactants on the Aggregation of Poly(Ethylene Oxide)-Poly(Propylene Oxide)-Poly(Ethylene Oxide) Block Copolymers Studied by Differential Scanning and  

E-Print Network (OSTI)

Influence of Ionic Surfactants on the Aggregation of Poly(Ethylene Oxide)-Poly(Propylene Oxide)-Poly(Ethylene copolymers of poly(ethylene oxide) and poly(propylene oxide), EOnPOmEOn, and the ionic surfactants sodium the aggregates of all three polymers. Introduction Water-soluble poly(ethylene oxide)-poly(propylene oxide)- poly(ethylene

Loh, Watson

28

Conversion of 1,3-Propylene Glycol on Rutile TiO2(110)  

SciTech Connect

The adsorption of 1,3-propylene glycol (1,3-PG) on partially reduced TiO2(110) and its conversion to products have been studied by a combination of molecular beam dosing and temperature programmed desorption (TPD). When the Ti surface sites are saturated by 1,3-PG, ~80% of the molecules undergo further reactions to yield products that are liberated during the TPD ramp. In contrast to ethylene glycol (EG) and 1,2- propylene glycol (1,2-PG) that yield only alkenes and water at very low coverages (< 0.05 ML), two additional products, HCHO and C2H4, along with propylene (CH3CHCH2) and water are observed for 1,3-PG. Identical TPD line shapes and desorption yields for HCHO and C2H4 suggest that these products result from C-C bond cleavage and are coupled. At higher 1,3-PG coverages (> 0.1 ML), propanal (CH3CH2CHO) and two additional products, 1-propanol (CH3CH2CH2OH) and acrolein (CH2CHCHO), are observed. The desorption of 1-propanol is found to be coupled with the desorption of acrolein, suggesting that these products are formed by the disproportionation of two 1,3-PG molecules. The coverage dependent TPD results further show that propylene formation dominates at low coverages (< 0.3 ML), while the decomposition and disproportionation channels increase rapidly at higher coverages and reach yields comparable to that of propylene at the 1,3-PG saturation coverage of 0.5 ML. The observed surface chemistry clearly shows how the molecular structure of glycols influences their reaction pathways on oxide surfaces.

Chen, Long; Li, Zhenjun; Smith, R. Scott; Kay, Bruce D.; Dohnalek, Zdenek

2014-10-09T23:59:59.000Z

29

Experimental and modeling study of catalytic steam reforming of methane mixture with propylene in a packed bed reactor  

Science Journals Connector (OSTI)

Abstract Producer gas from biomass gasification contains mainly hydrogen, carbon dioxide, carbon monoxide, methane and some other low molecular hydrocarbons like propylene. This paper reports mathematical simulation and experimental study of steam reforming of methane mixture with propylene in a packed bed reactor filled with nickel based catalysts. Due to the high heat input through the reformer tube wall and the endothermic reforming reactions, a two-dimensional pseudo-heterogeneous model that takes into account the diffusion reaction phenomena in gas phase as well as inside the catalyst particles has been used to represent temperature distribution and species concentration within the reactor. Steam reforming of propylene is faster and more selective than methane and it is shown that addition of propylene to the methane steam mixture reduces the conversion of methane. The obtained results play a key role in optimization and design of a commercial reactor.

Parham Sadooghi; Reinhard Rauch

2014-01-01T23:59:59.000Z

30

Thermophysical property predictions of propane, propylene and their mixtures by Benedict-Webb-Rubin type equations of state  

E-Print Network (OSTI)

THERMOPHYSICAL PROPERTY PREDICTIONS OF PROPANE, PROPYLENE AND THEIR MIXTURES BY BENEDICT-WEBB-RUBIN TYPE EQUATIONS OF STATE A Thesis by PRAMOD KUMAR BENGANI 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 December 1990 Major Subject: Chemical Engineering THERMOPHYSICAL PROPERTY PREDICTIONS OF PROPANE, PROPYLENE AND THEIR MIXTURES BY BENEDICT-WEBB-RUBIN TYPE EQUATIONS OF STATE A Thesis...

Bengani, Pramod Kumar

2012-06-07T23:59:59.000Z

31

Production of high-V. I. oils by thermal decomposition of ethylene/propylene copolymer  

SciTech Connect

The process of copolymerization of ethylene with propylene can be readily controlled, so that copolymers with practically any desired composition can be obtained, with a specific alternation of monomer units and with a specific number of lateral branches. This paper examines the preparation of high-V.I. synthetic lube oils by the thermal decomposition of an ethylene/propylene copolymer with a molecular weight of 100,000-1,000,000, containing 40-85% (mole) ethylene, synthesized on ZieglerNatta organometallic systems. It determines the distillation curve, and the physicochemical and service properties of the distillation cuts. It finds that the oils have high viscosity indices, low solid points, and good oxidation resistance and anticorrosion properties. These oils can be used in vehicles and mechanisms operating in the Far North and in the Arctic.

Seidov, N.M.; Abasov, A.I.; Abasova, T.M.; Bairamov, V.A.; Kuliev, R.Sh.; Mustafaev, A.M.

1982-09-01T23:59:59.000Z

32

Electrochemical studies of the film formation on lithium in propylene carbonate solutions under open circuit conditions  

SciTech Connect

The nature of protective surface layers formed on lithium in propylene carbonate solutions of LiClO/sub 4/ and LiAsF/sub 6/ at open circuit has been investigated by electrochemical pulse measurements and other techniques. The results are consistent with the fast formation of a compact thin layer of Li/sub 2/O by reaction with residual water. This layer acts as a solid ionic conductor. Slow corrosion processes produce a thicker porous overlayer.

Geronov, Y.; Schwager, F.; Muller, R.H.

1981-04-01T23:59:59.000Z

33

FILM FORMATION ON LITHIUM IN PROPYLENE CARBONATE SOLUTIONS UNDER OPEN CIRCUIT CONDITIONS  

SciTech Connect

The nature of protective surface layers formed on lithium in propylene carbonate solutions of LiClO{sub 4} and LiAsF{sub 6} at open circuit has been investigated by electrochemical pulse measurements. The results are consistent with the fastformation of a compact thin layer resulting from the reaction with residual water. This layer acts as a solid ionicconductor. Slow corrosion or decomposition processes produce a thicker porous overlayer.

Geronov, Y.; Schwager, F.; Muller, R.H.

1980-06-01T23:59:59.000Z

34

Recovery of propylene glycol from dilute aqueous solutions via reversible reaction with aldehydes  

SciTech Connect

A means is proposed for separating propylene glycol and other compounds bearing multiple hydroxyl groups by reversible chemical reaction. Glycols react with aldehydes in cyclic acetalization reactions to form substituted dioxolanes. Propylene glycol reacts with formaldehyde and acetaldehyde to form 4-methyl-1,3-dioxolane and 2,4-dimethyl-1,3-dioxolane. The reaction is catalyzed homogeneously by strong mineral acids or heterogeneously by cation exchange resins in the acid form. Separation processes utilizing this reaction would include an acetalization step, several distillative separation steps and finally a hydrolysis step in which the reaction is reversed. Both reaction steps must be forced to completion by removing the reaction product simultaneously. The equilibrium and kinetics of the reaction with formaldehyde were studied experimentally in systems catalyzed by Amberlite IR-120 ion exchange resin. A number of solvents were screened for their ability to extract 2,4-dimethyl-1,3-dioxolane from aqueous solution. Aromatic hydrocarbons exhibited the highest distribution into the organic phase. To achieve an effective separation of propylene glycol from aqueous solution by combined reaction with formaldehyde and distillation, formaldehyde would have to be present in excess and would be difficult and costly to separate from the aqueous solution. In reactive distillation using acetaldehyde as a reactant this is not a problem. A large flow of acetaldehyde would be necessary to recover the propylene glycol sufficiently in a distillative process. In a process combining reaction and extraction into an organic solvent this problem is avoided. Process simulation indicates the energy input of such a process is less than half of the energy required in a triple-effect evaporation process. This benefit is offset by higher capital costs and increased complexity in the reaction/extraction process.

Broekhuis, R.R.; Lynn, S.; King, C.J. [Univ. of California, Berkeley, CA (United States). Dept. of Chemical Engineering]|[Lawrence Berkeley Lab., CA (United States)

1993-12-01T23:59:59.000Z

35

The influence of propylene glycol ethers on base diesel properties and emissions from a diesel engine  

Science Journals Connector (OSTI)

Abstract The oxygenated additives propylene glycol methyl ether (PGME), propylene glycol ethyl ether (PGEE), dipropylene glycol methyl ether (DPGME) were studied to determine their influence on both the base diesel fuel properties and the exhaust emissions from a diesel engine (CO, NOx, unburnt hydrocarbons and smoke). For diesel blends with low oxygen content (?4.0 wt.%), the addition of these compounds to base diesel fuel decreases aromatic content, kinematic viscosity, cold filter plugging point and Conradson carbon residue. Also, each compound modifies the distillation curve at temperatures below the corresponding oxygenated compound boiling point, the distillate percentage being increased. The blend cetane number depends on the type of propylene glycol ether added, its molecular weight, and the oxygen content of the fuel. The addition of PGME decreased slightly diesel fuel cetane number, while PGEE and DPGME increased it. Base diesel fuel-propylene glycol ether blends with 1.0 and 2.5 wt.% oxygen contents were used in order to determine the performance of the diesel engine and its emissions at both full and medium loads and different engine speeds (1000, 2500 and 4000 rpm). In general, at full load and in comparison with base diesel fuel, the blends show a slight reduction of oxygen-free specific fuel consumption. CO emissions are reduced appreciably for 2.5 wt.% of oxygen blends, mainly for PGEE and DPGME. \\{NOx\\} emissions are reduced slightly, but not the smoke. Unburnt hydrocarbon emissions decrease at 1000 and 2500 rpm, but not at 4000 rpm. At medium load, the effect of the additives is much less significant, due to the fact that the ratio oxygen from additive/oxygen from air is much lower.

F. Gómez-Cuenca; M. Gómez-Marín; M.B. Folgueras-Díaz

2013-01-01T23:59:59.000Z

36

Recovery of propylene glycol from dilute aqueous solutions via reversible reaction with aldehydes  

SciTech Connect

The recovery of propylene glycol from dilute aqueous solutions via reaction with formaldehyde to form 4-methyl-1,3-dioxolane or with acetaldehyde to form 2,4-dimethyl-1,3-dioxolane was studied experimentally. The equilibrium and kinetics of the reaction with formaldehyde were studied in systems catalyzed by Amberlite IR-120 ion exchange resin. The equilibrium constant ranged from 5.9 to 8.7 in the temperature range from 25 to 85 C, with no obvious trend with respect to temperature. The kinetics was found to be first-order in the concentrations of propylene glycol, formaldehyde, and Amberlite IR-120, with an activation energy of 102 kJ/mol. In the reaction with acetaldehyde, the equilibrium constant decreased from 18.1 at 40 C to 8.5 at 83 C. The kinetics was faster than with formaldehyde. The volatilities of 4-methyl-1,3-dioxolane and 2,4-dimethyl-1,3-dioxolane relative to water were 100 and 33, respectively. Of several solvents screened, aromatic hydrocarbons exhibited the highest distribution of 2,4-dimethyl-1,3-dioxolane from the aqueous into the organic phase. Recovery of propylene glycol by reactive distillation with formaldehyde or acetaldehyde is hampered by unfavorable chemical and phase equilibria. A process combining reaction and extraction into an organic solvent appears to be more attractive and substantially reduces the energy requirement, in comparison with a triple-effect evaporation process.

Broekhuis, R.R.; Lynn, S.; King, C.J. (Lawrence Berkeley Lab., CA (United States))

1994-12-01T23:59:59.000Z

37

CSP Policies & Procedures Process for Grade Appeals  

E-Print Network (OSTI)

CSP Policies & Procedures Process for Grade Appeals Grade Appeals ­ Generally speaking, once grades

Leistikow, Bruce N.

38

ALL GRADE 5 AND GRADE 8 FASTENERS ...  

Office of Environmental Management (EM)

GRADE 8 FASTENERS WITH THE FOLLOWING MANUFACTURERS' HEADMARKS: MARK KS MARK J (CA TW JP YU) (Greater than 12 inch dia) MARK A NF H M MS Hollow Triangle E MARK KS RT FM...

39

Thermodynamic analysis of a transcritical CO2/propylene (R744–R1270) cascade system for cooling and heating applications  

Science Journals Connector (OSTI)

Abstract In this paper natural refrigerant propylene (R1270) has been proposed for transcritical cascade refrigeration system and analyzed. Propylene is used in the low temperature (LT) cycle and carbon dioxide is used in the high temperature (HT) cycle of the cascade transcritical refrigeration system. The proposed transcritical cascade cycle can be used for simultaneous cooling and heating applications. Thermal performance of the cascade cycle is evaluated for different combinations of design and operating variables and optimum performance parameters such as Topt, \\{COPmax\\} and mass flow of propylene and CO2 have been predicted. Design parameters include the evaporator temperature of LT cycle (TE), gas cooler outlet temperature (TC) and cascade heat exchanger temperature difference (DT). The results of the analysis show better thermal performance of CO2–propylene transcritical cycle than subcritical cascade cycle and also better than N2O–CO2 transcritical cycle. A methodology to obtain relevant performance diagrams and regression correlations to serve as a guideline for the design and optimization of transcritical CO2–propylene cascade system has been developed.

Alok Manas Dubey; Suresh Kumar; Ghanshyam Das Agrawal

2014-01-01T23:59:59.000Z

40

Ultrafast Infrared Heating Laser Pulse-Induced Micellization Kinetics of Poly(ethylene oxide)-Poly(propylene oxide)-Poly(ethylene oxide) in  

E-Print Network (OSTI)

Ultrafast Infrared Heating Laser Pulse-Induced Micellization Kinetics of Poly(ethylene oxide)-Poly(propylene oxide)-Poly(ethylene oxide) in Water Xiaodong Ye, Yijie Lu, Shilin Liu,*, Guangzhao Zhang, and Chi Wu-induced micellization of poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) (Pluronic PE10300) triblock

Liu, Shilin

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

Kinetic Modeling of Slurry Propylene Polymerization using rac-Et(Ind)2ZrCl2/MAO  

E-Print Network (OSTI)

by the isospecific metallocene rac-Et(Ind)2ZrCl2/MAO was investigated using a semi-batch reactor. A full factorial using a systematic optimization strategy. The model predicts that the insertion of the first propylene such understanding and affords opportunities for optimization. Thermoplastic industries for polypropylene (PP

42

Using Membrane Reactive Absorption Modeling to Predict Optimum Process Conditions in the Separation of Propane–Propylene Mixtures  

Science Journals Connector (OSTI)

Chilukuri, P.; Rademakers, K.; Nymeijer, K.; Van der Ham, L.; Van Berg, H. D.Propylene/propane separation with a gas/liquid membrane contactor using a silver salt solution Ind. Eng. ... Chilukuri, Pavan; Rademakers, Karlijn; Nymeijer, Kitty; van der Ham, Louis; van den Berg, Henk ...

Marcos Fallanza; Alfredo Ortiz; Daniel Gorri; Inmaculada Ortiz

2013-01-11T23:59:59.000Z

43

Solvation of the Fluorine Containing Anions and Their Lithium Salts in Propylene Carbonate and Dimethoxyethane  

E-Print Network (OSTI)

Electrolyte solutions based on the propylene carbonate (PC)-dimethoxyethane (DME) mixtures are of significant importance and urgency due to emergence of lithium-ion batteries. Solvation and coordination of the lithium cation in these systems have been recently attended in detail. However, analogous information concerning anions (tetrafluoroborate, hexafluorophosphate) is still missed. This work reports PM7-MD simulations (electronic-structure level of description) to include finite-temperature effects on the anion solvation regularities in the PC-DME mixture. The reported result evidences that the anions appear weakly solvated. This observation is linked to the absence of suitable coordination sites in the solvent molecules. In the concentrated electrolyte solutions, both BF4 and PF6 prefer to exist as neutral ion pairs (LiBF4, LiPF6).

Chaban, Vitaly

2015-01-01T23:59:59.000Z

44

A comparison of advanced distillation control techniques for a propylene/propane splitter  

SciTech Connect

A detailed dynamic simulator of a propylene/propane (C{sub 3}) splitter, which was bench-marked against industrial data, has been used to compare dual composition control performance for a diagonal PI controller and several advanced controllers. The advanced controllers considered are DMC, nonlinear process model based control, and artificial neural networks. Each controller was tuned based upon setpoint changes in the overhead production composition using 50% changes in the impurity levels. Overall, there was not a great deal of difference in controller performance based upon the setpoint and disturbance tests. Periodic step changes in feed composition were also used to compare controller performance. In this case, oscillatory variations of the product composition were observed and the variabilities of the DMC and nonlinear process model based controllers were substantially smaller than that of the PI controller. The sensitivity of each controller to the frequency of the periodic step changes in feed composition was also investigated.

Gokhale, V.; Hurowitz, S.; Riggs, J.B. [Texas Tech Univ., Lubbock, TX (United States). Dept. of Chemical Engineering

1995-12-01T23:59:59.000Z

45

Integrated C3 Feedstock and Aggregated Distillation Model for  

E-Print Network (OSTI)

Polypropylene Propane return Reactor effluent Distillation Polymerization FeedTank Propylene (91%) Goal: Select. Refinery Grade (RG) Propane return Distillation Vapor recompression Propylene (91%) ~79% propylene #12 Polypropylene Propane return Reactor effluent Distillation Polymerization Feed Tank Propylene ~79% propylene ~95

Grossmann, Ignacio E.

46

Upgrading Below Grade Spaces  

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

Patrick H. Huelman, Sam Breidenbach, Steve Schirber Patrick H. Huelman, Sam Breidenbach, Steve Schirber NorthernSTAR Building America Partnership Upgrading Below Grade Spaces Residential Energy Efficiency Stakeholder March 1, 2012 Austin, TX * Act 1: Technical Challenges & Opportunities - Pat Huelman, University of Minnesota * Act 2: Assessing Homeowner Priorities & Risks - Sam Breidenbach, TDS Custom Construction * Act 3: An Industry Perspective - Steve Schirber, Cocoon Act 1. Upgrade Below Grade * Basement Remodeling: It Doesn't Get Any Riskier! - Combustion safety - Foundation moisture - Radon (& other soil gases) - Biologicals (mold, dust mites, etc.) - Garage gases (if attached) * And front and center are uncontrolled... - negative pressures in basements (beyond stack)

47

Experimental plant for production of synthetic triplex-polymerized ethylene-propylene rubber  

Science Journals Connector (OSTI)

An experimental plant with an output of 500 kg/day, which is intended for the formulation of process production regimes, and the running times of experimental ... various grades of synthetic triple-polymerized et...

V. I. Peretyatko; V. P. Pogrebtsov; V. A. Shepelin

2010-05-01T23:59:59.000Z

48

Nonlinear process model based control of a propylene sidestream draw column  

SciTech Connect

While sidestream draw columns offer the incentives of reduced capital and operating expenses, they also pose more challenging control problems than ordinary distillation columns. This paper describes the application of nonlinear process model based control (PMBC) for composition control of all product streams for a simulation of a distillation column with a liquid sidestream draw. A tray-to-tray simulator of an industrial propylene/propane column that considers 5-min composition analyzer dead time was used to test the nonlinear PMBC controller for setpoint changes, a feed flow rate change, and feed composition changes. The nonlinear PMBC controller used an approximate model based upon the Smoker equation directly to make control decisions. The nonlinear PMBC controller exhibits excellent control performance for all test cases with a maximum relative deviation of the impurity from setpoint of about 10% for the two product streams. The nonlinear PMBC controller provides significantly improved control performance over a conventional single loop control scheme that is currently in industrial use.

Riggs, J.B. (Dept. of Chemical Engineering, Texas Tech Univ., Lubbock, TX (US))

1990-11-01T23:59:59.000Z

49

Study of the methanol conversion to ethylene and propylene using small pore size zeolites  

SciTech Connect

This project consisted of the study of the kinetics of the reaction of methanol to olefins. A combined selectivity to ethylene and propylene of 90% is readily achieved by selecting a proper set of operating conditions. The investigation encompassed the study of external and internal diffusion, adsorption and reaction. Instantaneous and overall material balances were developed, and a minimization technique was used to calculate the rate of formation of coke, the amount of coke deposition on the catalyst, and the hydrogen to carbon ratio. This procedure allowed the adjustment of several parameters in order to satisfy the material balances. The results were used to calculate the rate constants of the proposed model. The results indicated that the dehydration of methanol was inhibited by the adsorption of methanol. In general low methanol partial pressures, achieved by decreasing the total pressure in the case of pure methanol feeds, or by diluting methanol with water or nitrogen, increased the selectivity toward olefins. All the catalysts studied showed deactivation due to the accumulation of aromatic compounds (coke), which had a hydrogen to carbon ration close to 1.1. The maximum amount of coke that can be deposited on the catalyst was about 0.16 grams coke/gram catalyst. The catalyst was regenerated by burning the coke with air. Residence time distribution experiments using a step input change showed that perfect mixing could be obtained with 200 grams of powder catalyst of 30-100 microns particle size by using flow rates smaller than 5 cc/sec measured at reactor conditions, and impeller speeds higher than 12 rev/sec.

Vera-Castaneda, E.

1985-01-01T23:59:59.000Z

50

Economics of Grade Reduction  

E-Print Network (OSTI)

the following abbreviations are used:* C25 diameter in inches of high pressure cylinder. c= diameter in inches of low pressure cylinder. P= boiler pressure. R}= ratio of mean effective pressure to boiler pressure in low pressure cylinder, taken from Pig. E.... But the only error of moment in such case will be in the es- timated saving in train mileage, for the same degree of efficiency or inefficiency is to be expected after the reduction of grade as before. As the estimated saving per train mile as given...

Neff, Paul J.

1914-02-10T23:59:59.000Z

51

OPTIONS FOR ONLINE GRADE SUBMISSION Web-Based Grade  

E-Print Network (OSTI)

Spring 2014 Phone Support IT Express Computing Services Help Desk (530) 754-HELP (4357) http enter your grades. The Gradebook2 tool allows you to track student assign- ments throughout the quarter completed online grade submission for that particular course. 1 2 3 4 #12;NEED HELP? Fall 2013 Winter 2014

Schladow, S. Geoffrey

52

Adsorption of carbonyl sulfide from liquid hydrocarbons with activated alumina and other adsorbents  

SciTech Connect

Contamination of Liquid hydrocarbon streams with carbonyl sulfide (COS) is not desirable; particularly in propylene. COS may poison the down stream polymerization catalyst. Thus, it is usually required to reduce the COS concentration to an extremely low level, e.g. 1 ppm or less, for polymer grade propylene. Many technologies generally available for sulfur removal, such as scrubbing and distillation are not applicable to the removal of COS from propylene. The former is not suitable for a low level removal. With the boiling point of COS (-50{sup 0}C) very close to that of propylene (-48{sup 0}C) it is difficult to achieve a very efficient separation with distillation. Adsorption technology provides a very energy efficient process in addition to its ability of the low level removal. Adsorbents selected in this study include activated carbon, molecular sieves, zinc oxide and activated alumina. The results show that activated alumina is far superior in both adsorption capacity and rate. An adsorption mechanism with activated alumina is proposed. It is believed that adsorption of COS takes place simultaneously with the hydrolysis of COS on the alumina surface. Adsorption isotherms of COS up to 100 ppm and the effect of moisture content are also addressed in this study.

Liu, P.K.T. (Alcoa Separations Technology Div., Aluminum Co. of America, Warrendale, PA (US))

1988-01-01T23:59:59.000Z

53

Revised November 2012 GRADE SUBMISSION PROCEDURES  

E-Print Network (OSTI)

are required to submit grades via MyUH or LAULIMA for all students by 4pm on the Tuesday following the finalUH. Therefore, for grades entered via LAULIMA, faculty will need to load grade via LAULIMA and then access My to the Grading Deadlines/Procedure Grades for students enrolled in the following courses will be processed

54

Genetics Curriculum for Grade 5  

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

Genetics Curriculum for Grade 5 Genetics Curriculum for Grade 5 Name: Darin W Meyer Age: N/A Location: N/A Country: N/A Date: N/A Question: I am teaching a fifth grade science class and I have a student that is very interested in doing an individual project on genetics. Specifically he is interested in heredity, dominant/recessive genes, cross breeding, DNA, RNA. Any suggestion for projects that he could do? I would be interested in having him do something collaboratively with another student teacher etc so that he has some on-line experience. I would be grateful for any help that anyone could give me. I could also use more sources on info for me to use as I direct his study. This fifth grade student is capable of content in the 9-10 grade range. I do have rats and mice in my room. What about a little breeding program?

55

Effect of phosphorus on novel bifunctional additives for enhancing the production of propylene and removal of SO2 in FCC process  

Science Journals Connector (OSTI)

Magnesium-aluminate spinels were introduced into the matrix of typical propylene additives (ZSM-5 as the active component) to obtain a series of novel bifunctional additives for enhancing the production of propylene and removal of SO2. Their performance as additives to a commercial equilibrium USY FCC catalyst for VGO (vacuum gas oil) cracking and activity in oxidative adsorption of SO2 under similar FCC regenerator conditions were investigated. The bottleneck of the novel bifunctional additives is that the substitution of MgAl2O4 for Kaolin clay in propylene additives causes the migration of Mg2+ into ZSM-5 zeolite, which evidently lowers the activity of ZSM-5 as an FCC additive. However, pretreating MgAl2O4 with phosphoric acid either by extraction or by impregnation method which weakened the interaction between MgAl2O4 and ZSM-5 during the steaming and calcination processes, respectively, was proved to be effective in enhancing the efficiency of ZSM-5 for increasing propylene yield. Concurrently, the unusally high hydrogen transfer activity of MgAl2O4 in VGO cracking, which also contributed to the decrease in ZSM-5 activity, was sharply reduced by P doping. Moreover, the phosphorus modification also promoted the SO2 uptake capacity of bifunctional additives.

Xiaoling Xu; Chunyi Li; Honghong Shan

2011-01-01T23:59:59.000Z

56

ESR lineshape and {sup 1}H spin-lattice relaxation dispersion in propylene glycol solutions of nitroxide radicals – Joint analysis  

SciTech Connect

Electron Spin Resonance (ESR) spectroscopy and Nuclear Magnetic Relaxation Dispersion (NMRD) experiments are reported for propylene glycol solutions of the nitroxide radical: 4-oxo-TEMPO-d{sub 16} containing {sup 15}N and {sup 14}N isotopes. The NMRD experiments refer to {sup 1}H spin-lattice relaxation measurements in a broad frequency range (10 kHz–20 MHz). A joint analysis of the ESR and NMRD data is performed. The ESR lineshapes give access to the nitrogen hyperfine tensor components and the rotational correlation time of the paramagnetic molecule. The NMRD data are interpreted in terms of the theory of paramagnetic relaxation enhancement in solutions of nitroxide radicals, recently presented by Kruk et al. [J. Chem. Phys. 138, 124506 (2013)]. The theory includes the effect of the electron spin relaxation on the {sup 1}H relaxation of the solvent. The {sup 1}H relaxation is caused by dipole-dipole interactions between the electron spin of the radical and the proton spins of the solvent molecules. These interactions are modulated by three dynamic processes: relative translational dynamics of the involved molecules, molecular rotation, and electron spin relaxation. The sensitivity to rotation originates from the non-central positions of the interacting spin in the molecules. The electronic relaxation is assumed to stem from the electron spin–nitrogen spin hyperfine coupling, modulated by rotation of the radical molecule. For the interpretation of the NMRD data, we use the nitrogen hyperfine coupling tensor obtained from ESR and fit the other relevant parameters. The consistency of the unified analysis of ESR and NMRD, evaluated by the agreement between the rotational correlation times obtained from ESR and NMRD, respectively, and the agreement of the translation diffusion coefficients with literature values obtained for pure propylene glycol, is demonstrated to be satisfactory.

Kruk, D., E-mail: danuta.kruk@matman.uwm.edu.pl [University of Warmia and Mazury in Olsztyn, Faculty of Mathematics and Computer Science, Sloneczna 54, PL-10710 Olsztyn (Poland); Hoffmann, S. K.; Goslar, J.; Lijewski, S. [Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznan (Poland)] [Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznan (Poland); Kubica-Misztal, A.; Korpa?a, A.; Oglodek, I.; Moscicki, J. [Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow (Poland)] [Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow (Poland); Kowalewski, J. [Arrhenius Laboratory, Department of Materials and Environmental Chemistry, Stockholm University, S-106 91 Stockholm (Sweden)] [Arrhenius Laboratory, Department of Materials and Environmental Chemistry, Stockholm University, S-106 91 Stockholm (Sweden); Rössler, E. A. [Universität Bayreuth, Experimentalphysik II, 95440 Bayreuth (Germany)] [Universität Bayreuth, Experimentalphysik II, 95440 Bayreuth (Germany)

2013-12-28T23:59:59.000Z

57

Educational Product Educators Grades 58  

E-Print Network (OSTI)

Educational Product Educators Grades 5­8 WEATHER Investigating the Climate System WEATHER Global Theon, Former Program for your favorite music group!. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Scientist for NASA TRMM Editorial Assistance, Dan Stillman, Science Communications Specialist

Waliser, Duane E.

58

Additive manufacturing of graded dielectrics  

Science Journals Connector (OSTI)

A method for the fabrication of graded dielectrics within a structural composite is presented. This system employs an ultrasonic powder deposition head to print high dielectric powders onto a woven fabric composite substrate. It is shown how this system can integrate 3D variations of dielectric properties at millimeter resolution within a mechanically rugged substrate. To conclude, the system's practical application is demonstrated with experimental results from a graded index lens.

David A Roper; Brandon L Good; Raymond McCauley; Shridhar Yarlagadda; Jared Smith; Austin Good; Peter Pa; Mark S Mirotznik

2014-01-01T23:59:59.000Z

59

“Petroleum Gas Oil?Ethanol” Blends Used as Feeds: Increased Production of Ethylene and Propylene over Catalytic Steam-Cracking (CSC) Hybrid Catalysts. Different Behavior of Methanol in Blends with Petroleum Gas Oil  

Science Journals Connector (OSTI)

“Petroleum Gas Oil?Ethanol” Blends Used as Feeds: Increased Production of Ethylene and Propylene over Catalytic Steam-Cracking (CSC) Hybrid Catalysts. ... Recently developed hybrid catalysts used in the catalytic steam cracking (CSC, formerly called selective deep catalytic cracking or SDCC(1, 2) and also thermal catalytic cracking or TCC(3, 4)) of hydrocarbon heavy feedstocks (naphthas and gas oils) are very efficient in the production of light olefins, particularly ethylene and propylene with a product propylene-to-ethylene ratio close to 1.0. ...

A. Muntasar; R. Le Van Mao; H. T. Yan

2010-03-22T23:59:59.000Z

60

Compressible Solution Properties of Amorphous Polystyrene-block-Polybutadiene, Crystalline Polystyrene-block-Poly(Hydrogenated Polybutadiene) and Their Corresponding Homopolymers: Fluid-Fluid, Fluid-Solid and Fluid-Micelle Phase Transitions in Propane and Propylene  

SciTech Connect

Abstract Polystyrene, polybutadiene, hydrogenated polybutadiene, and styrene diblock copolymers of these homopolymers can form homogenous solutions in compressible solvents, such as propane and propylene, which separate into two bulk phases upon reducing pressure. The cloud and micellization pressures for homopolymer and diblock copolymers are generally found to be higher in propane than in propylene, except for hydrogenated polybutadiene and polystyrene-block-(hydrogenated polybutadiene). Hydrogenated polybutadiene homopolymers and copolymers exhibit relatively pressure-independent crystallization and melting observed in both propane and propylene solutions.

Hong, Kunlun [ORNL; Mays, Jimmy [ORNL; Winoto, Winoto [University of Wyoming, Laramie; Radosz, Maciej [University of Wyoming, Laramie

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

EM Commerical Grade Dedication Class Slides  

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

Grade Dedication Grade Dedication www.em.doe.gov safety performance cleanup closure E M Environmental Management 1 DOE TRAINING DOE TRAINING Commercial Grade Commercial Grade Dedication Dedication Training Training MODULE 1 Overview of CGD Process www.em.doe.gov safety performance cleanup closure E M Environmental Management 2 Course Objectives  Define the terms "commercial grade item" and "commercial grade services" g  Understand the process for commercial grade dedication (CGD)  Describe the bases for implementing each element of the generic process and how they relate to NQA-1 requirements and Electric Power Research Institute requirements and Electric Power Research Institute (EPRI) Guidelines  Describe each element of the process

62

Standard Syllabi and Grading Policy  

E-Print Network (OSTI)

Standard Syllabi and Grading Policy Professor and Executive Vice Dean Phil Phan The Johns Hopkins Is a Syllabus #12;· All the current Carey standard syllabi are listed online http://carey.jhu.edu/standard_syllabi · Carey standard syllabus templates are available online http

von der Heydt, Rüdiger

63

High-capacity trays debottleneck Texas C{sub 3} splitter  

SciTech Connect

In 1992, Chevron Chemical Company placed 325 of UOP`s Enhanced Capacity Multiple Downcomer (ECMD) trays in its large C{sub 3} splitter at Port Arthur, Tex. The capacity of the splitter was increased by 40% /to about 124,000 lb/hr. Many times, engineers are faced with debottlenecking their fractionation trains. High-pressure and heavily liquid-loaded service is of particular interest because of the high capital cost to replace a vessel. This recently patented high-capacity tray enabled Chevron to revamp its fractionation tower, thus avoiding costly tower replacement. At Chevron`s Port Arthur, Tex., plant, the propylene/propane stream first flows through a multiple-bed treatment system to ensure high-purity product. The steam then proceeds to a large propylene/propane fractionation unit that produces hundreds of millions of pounds per year of polymer-grade propylene while utilizing mostly waste heat to keep operating costs low. The paper describes the ECMD trays, their development, commercialization, an design, the Chevron revamp start-up, and operation.

Summers, D.R. [Stone and Webster Engineering Corp., Houston, TX (United States); McGuire, P.J.; Resetarits, M.R. [UOP, Tonawanda, NY (United States); Graves, C.E. [Chevron Chemical Co., Baytown, TX (United States); Harper, S.E. [Chevron Chemical Co., Kingwood, TX (United States); Angelino, S.J. [Angelino (Salvatore J.), Tonawanda, NY (United States)

1995-11-06T23:59:59.000Z

64

COHEN-MACAULAYNESS IN GRADED ALGEBRAS Joseph ...  

E-Print Network (OSTI)

Karen Smith remarked that Sancho de Salas's sequence ((SS) below) could be developed for arbitrary graded rings. More substantially, the observation.

1910-30-30T23:59:59.000Z

65

EM Commerical Grade Dedication Class Slides  

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

PowerPoint presentation used in the EM sponsored commercial grade dedication (CGD) class. This class is designed to provide an understanding of the process for CGD.

66

Dynamics of Propane in Silica Mesopores Formed upon PropyleneHydrogenation over Pt Nanoparticles by Time-Resolved FT-IRSpectroscopy  

SciTech Connect

Propylene hydrogenation over Pt nanoparticles supported onmesoporous silica type SBA-15 was monitored by time-resolved FT-IRspectroscopy at 23 ms resolution using short propylene gas pulses thatjoined a continuous flow of hydrogen in N2 (1 atm total pressure).Experiments were conducted in the temperature range 323-413 K. Propanewas formed within 100 milliseconds or faster. The CH stretching regionrevealed distinct bands for propane molecules emerging inside thenanoscale channels of the silica support. Spectral analysis gave thedistribution of the propane product between support and surrounding gasphase as function of time. Kinetic analysis showed that the escape ofpropane molecules from the channels occurred within hundreds ofmilliseconds (3.1 + 0.4 s-1 at 383 K). A steady state distribution ofpropane between gas phase and mesoporous support is established as theproduct is swept from the catalyst zone by the continuous flow ofhydrogen co-reactant. This is the first direct spectroscopic observationof emerging products of heterogeneous catalysis on nanoporous supportsunder reaction conditions.

Waslylenko, Walter; Frei, Heinz

2007-01-31T23:59:59.000Z

67

Different process schemes for converting light straight run and fluid catalytic cracking naphthas in a FCC unit for maximum propylene production  

Science Journals Connector (OSTI)

Light straight run (LSR) and fluid catalytic cracking (FCCN) naphthas were cracked in a transported bed reactor (MicroDowner) and in a fixed bed reactor (MAT) over a commercial Y zeolite based catalyst, over a commercial ZSM-5 zeolite based additive, and over a mixture of both at selected conditions. Based on the mechanisms through which naphtha hydrocarbons are converted, we evaluated the best alternatives for processing these streams to produce light olefins and/or to reduce olefins content in commercial gasoline. The experimental set-up allowed us to simulate the cracking behaviour of the different naphtha streams in a fluid catalytic cracking (FCC) unit by different processing schemes. Results indicate that LSR only cracks at high severity, yielding large amounts of dry gas. Despite its high olefins content, FCCN practically does not crack when it is fed together with gas oil feed. When cracking FCCN alone at typical gas oil cracking conditions, olefins are transformed preferentially into naphtha-range isoparaffins and aromatics, and when cracking FCCN at high severity, olefins are transformed preferentially into propylene and butylenes. Finally, cracking naphtha in the stripper produces some propylene and increases the aromatics in the remaining gasoline.

Avelino Corma; FranciscoV Melo; Laurent Sauvanaud; F.J Ortega

2004-01-01T23:59:59.000Z

68

Propane/Propylene Exports  

Gasoline and Diesel Fuel Update (EIA)

414 446 389 431 404 457 1973-2014 East Coast (PADD 1) 20 6 15 6 14 24 1981-2014 Midwest (PADD 2) 8 10 9 10 11 9 1981-2014 Gulf Coast (PADD 3) 372 417 352 403 366 411 1981-2014...

69

ASTM A-710 GRADE B High Performance  

E-Print Network (OSTI)

(ASTM A710 Grade B) steel is better than that of any other commercially available weathering steel. Paint on this steel resists degradation much better than on other weathering steels. NUCu steel does-precipitation-hardened, high- performance Grade 70 weathering steel, NUCu 70W (Northwestern University Cu

70

Requirements Flowdown and Graded Approach to QA  

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

Graded Approach Model and Expectation Graded Approach Model and Expectation Page 1 of 18 Office of Environmental Management And Energy Facility Contractors Group Quality Assurance Improvement Project Plan Project Focus Area Task # and Description Deliverable Project Area 1: Requirements Flow Down Task #1.9 - Complete White Paper covering procurement QA process flow diagram Draft White Paper and Amended Flow Diagram Project Area 4: Graded Approach Implementation Task #4.4 - In coordination with Project Focus Area #1, provide an EM expectation for application of the graded approach to procurement. EM Graded Approach Procedure for Procurements Approvals: Yes/No/NA Project Managers: S. Waisley, D. Tuttel Y Executive Committee: D. Chung, J. Yanek, N. Barker,

71

The effect of acid strength on the MTO reaction : Conversion of methanol to hydrocarbons over H-SAPO-34 and high silica Chabazite (H-SSZ-13).  

E-Print Network (OSTI)

??The Methanol-to-Olefins (MTO) process for the production of polymer-grade olefins is a possible step in the upgrading of natural gas. The preferred MTO catalyst is… (more)

Bleken, Francesca

2007-01-01T23:59:59.000Z

72

Upgrading Below-Grade Spaces: Assessing Priorities  

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

Below-Grade Spaces: Below-Grade Spaces: Assessing Priorities Sam Breidenbach [Cold climate bias] Gap-Balancing risk and homeowner expectations * Managing risk and challenges for contractors - Moisture, mold and liability - Durability/Sustainability - Design/build vs. owner's architect - Contract language to reduce liability - Aligning technical details with specific situations - Below grade spaces are business opportunities - Selling and Competition Gap-Balancing risk and homeowner expectations * Homeowner Expectations and Priorities - Focused on "house beautiful" until technical failure occurs - Health related issues - Opportunity to conserve energy - Cost vs. value-"inexpensive additional space" - Expectations not aligned with physical realities.

73

Thermal rectification in quantum graded mass systems  

E-Print Network (OSTI)

We show the existence of thermal rectification in the graded mass quantum chain of harmonic oscillators with self-consistent reservoirs. Our analytical study allows us to identify the ingredients leading to the effect. The presence of rectification in this effective, simple model (representing graded mass materials, systems that may be constructed in practice) indicates that rectification in graded mass quantum systems may be an ubiquitous phenomenon. Moreover, as the classical version of this model does not present rectification, our results show that, here, rectification is a direct result of the quantum statistics.

Emmanuel Pereira

2010-03-01T23:59:59.000Z

74

Conformational and Structural Relaxations of Poly(ethylene oxide) and Poly(propylene oxide) Melts: Molecular Dynamics Study of Spatial Heterogeneity, Cooperativity, and Correlated Forward-Backward Motion  

E-Print Network (OSTI)

Performing molecular dynamics simulations for all-atom models, we characterize the conformational and structural relaxations of poly(ethylene oxide) and poly(propylene oxide) melts. The temperature dependence of these relaxation processes deviates from an Arrhenius law for both polymers. We demonstrate that mode-coupling theory captures some aspects of the glassy slowdown, but it does not enable a complete explanation of the dynamical behavior. When the temperature is decreased, spatially heterogeneous and cooperative translational dynamics are found to become more important for the structural relaxation. Moreover, the transitions between the conformational states cease to obey Poisson statistics. In particular, we show that, at sufficiently low temperatures, correlated forward-backward motion is an important aspect of the conformational relaxation, leading to strongly nonexponential distributions for the waiting times of the dihedrals in the various conformational states

Michael Vogel

2007-10-30T23:59:59.000Z

75

Racial Differences in the Psychometric Properties of Grades: Are the Grades of non-White Students More Variable?  

E-Print Network (OSTI)

investigating race differences in the psychometric properties of college grades. One reason to suspect that the psychometric properties of grades might display subgroup differences is that current theories of racial bias suggest some professors might grade non-White...

Dovalina, Christen L

2014-03-31T23:59:59.000Z

76

Petroleum Products Table 31. Motor Gasoline Prices by Grade...  

Gasoline and Diesel Fuel Update (EIA)

by Grade, Sales Type, PAD District, and State 56 Energy Information Administration Petroleum Marketing Annual 1996 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD...

77

Requirements Flowdown and Graded Approach to QA  

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

This document provides the method for applying a graded approach to procurement activities across Department of Energy (DOE) Environmental Management (EM).  The document is to be used by EM...

78

A continuous ultrasonic scanner for lumber grading  

E-Print Network (OSTI)

The goal of this research was to improve mechanical stress grading technology through more accurate lumber strength and stiffness predictions. Specific objectives are: 1) develop a prototype ultrasonic lumber scanning system to measure localized...

Mayhew, Stephen Allison

2012-06-07T23:59:59.000Z

79

Grading of lumber using stress waves  

E-Print Network (OSTI)

The goal of this research was to develop stress wave grading technology suitable for small lumber mills. Specific goals include: 1) develop an ultrasonic probe configuration to facilitate real-time grain angle and edge knot measurement, 2) determine...

Bethi, Rajeshwar

2012-06-07T23:59:59.000Z

80

Model Investment Grade Audit and Project Proposal  

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

Information and documents for conducting an investment grade audit to evaluate potential measures and presenting a project proposal for a set of bundled measures that deliver savings to pay for the project over the finance term.

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

CSCE3030: Project Grading Sheet (Krishna Kavi)  

E-Print Network (OSTI)

CSCE3030: Project Grading Sheet (Krishna Kavi) Student Name: _____________________________________________ Project Title: _______________________________________________ 1.Problem Difficulty 15% Originality, material from outside of the class new concepts, etc. are used to determine the difficulty of the project 2

Kavi, Krishna

82

CSCE4610: Project Grading Sheet (Krishna Kavi)  

E-Print Network (OSTI)

CSCE4610: Project Grading Sheet (Krishna Kavi) Assumption: A report on one or more commercially available architecture Student Name: _____________________________________________ Project Title. are used to determine the difficulty of the project 2. Project Details 60% Completeness Identification

Kavi, Krishna

83

Procedures and Instructions for Submitting Final Grades  

E-Print Network (OSTI)

Jan 6, 2012 ... ... print-out of the grades you entered on myPurdue; make a new print-out. ... The time limit might be shorter than the one the video mentions. 9.

saerens

2012-01-06T23:59:59.000Z

84

Modeling of Solid Oxide Fuel Cell functionally graded electrodes and a feasibility study of fabrication techniques for functionally graded electrodes.  

E-Print Network (OSTI)

??Currently, Solid Oxide Fuel Cell (SOFC) electrodes have not been explored for optimization of graded electrodes and nonlinear functional grading. In this work, a complete… (more)

Flesner, Reuben

2009-01-01T23:59:59.000Z

85

SEM CR GRADE Intro to Chem Eng 1  

E-Print Network (OSTI)

SEM CR GRADE 4 PHYS 408 Physics 2 First Year Sophomore Year Junior Year Senior Year Fall__ Spring__ Fall__ Spring__ Fall__ Spring__ Fall__ Spring__ SEM CR GRADE 3 CHEM 683 Physical Chemistry 1 SEM CR Discovery 1 Fine Arts SEM CR GRADE 4 Discovery 2 Humanities SEM CR GRADE 4 MATH 644 Statistics for Engineers

Pringle, James "Jamie"

86

E-Print Network 3.0 - alumina-iron functionally graded Sample...  

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

...23 Enter Grades View Grades ... Source: Utah, University of - Energy and Geoscience Institute,...

87

Incomplete_Grade_Contract_10_31.docx | Revised: 10/31/2013 Graduate Incomplete Grade Contract Form  

E-Print Network (OSTI)

Incomplete_Grade_Contract_10_31.docx | Revised: 10/31/2013 Graduate Incomplete Grade Contract Form-2846 | WEB: http://www.grad.usf.edu/ PURPOSE OF INCOMPLETE CONTRACT An Incomplete Grade ("I") is exceptional MISSING ASSIGNMENTS AT THE TIME WHEN THE INCOMPLETE GRADE CONTRACT IS SIGNED. For example, a student may

Meyers, Steven D.

88

Design of maximum density aggregate grading  

Science Journals Connector (OSTI)

An aggregate grading that yields maximum solid density and maximum particle interlock is highly desirable for both bound mixtures, such as asphalt concrete and plain and reinforced concrete, and for unbound mixtures such as those used in base courses. Maximum particle interlock leads to high strength. Whereas minimum voids in a certain material composition is conducive to high strength and low compression. Aggregate grading may be obtained, for instance, from the ASTM, which is based on experience or may be designed according to Lees’ method. In the present work five different types of aggregates were used, each with a variety of chosen grading. It was found that Lees’ method produced the lowest porosity of all types of aggregates as well as for the various employed gradings. Lees’ rational method of aggregate grading, however, is a very lengthy and time-consuming procedure. Therefore, programming of Lees’ method is an essential step to make such an excellent method available to practicing engineers. A program named ‘ratmix’ was developed and has incorporated 58 design graphs of the Lees’ method. ratmix is a comprehensive program for Lees’ rational method; it conducts interpolation for intermediate points within the design graphs as well as between graphs of different properties.

Yahia A Abdel-Jawad; Waddah Salman Abdullah

2002-01-01T23:59:59.000Z

89

A GRADED REPRESENTATION MODEL FOR MACDONALD'S POLYNOMIALS.  

E-Print Network (OSTI)

A GRADED REPRESENTATION MODEL FOR MACDONALD'S POLYNOMIALS. Adriano M. Garsia and Mark Haiman representations in various bi-degrees are given by the Macdonald coefficients Kµ. Assuming one fundamental the conjectures in various special cases. 1 #12;1. Introduction Macdonald in (1, 2) introduced a remarkable new

Haiman, Mark D.

90

A GRADED REPRESENTATION MODEL FOR MACDONALD'S POLYNOMIALS.  

E-Print Network (OSTI)

A GRADED REPRESENTATION MODEL FOR MACDONALD'S POLYNOMIALS. Adriano M. Garsia and Mark Haiman representations in various bi­degrees are given by the Macdonald coefficients K â??¯ . Assuming one fundamental the conjectures in various special cases. 1 #12; 1. Introduction Macdonald in (1, 2) introduced a remarkable new

Haiman, Mark D.

91

Bond Strength of Grade 100 Reinforcing Steel  

E-Print Network (OSTI)

The bond strength of Grade 100 ASTM A 1035 reinforcing steel manufactured by MMFX Technologies Corp. is evaluated with respect to bond strength equations found in ACI 318-05 and ACI 408R-03. Test specimens are fullscale beam-splice specimens tested...

Miller, Shelby

2007-12-14T23:59:59.000Z

92

2008 by Nichole Flynn Grade Earth Science  

E-Print Network (OSTI)

© 2008 by Nichole Flynn 8th Grade Earth Science Ainsworth Middle School, Ainsworth, NE Field trip of these units. 3) Students will have practice at matching samples of rocks or sediment with the correct units. 4 everyone a couple of minutes to prepare to present the answer to the question(s) on their card. (They can

Frank, Tracy D.

93

Synthesis and Characterization of Compositionally Graded Si1...  

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

Compositionally Graded Si1-xGex Layers on Si substrate. Synthesis and Characterization of Compositionally Graded Si1-xGex Layers on Si substrate. Abstract: Thin film of silicon...

94

Driver comprehension of railroad-highway grade crossings  

E-Print Network (OSTI)

Over the past twenty years, over $2 billion has been allocated for the improvement of railroad-highway grade crossings. Many passive crossings have been upgraded with active protection which has decreased the number of collisions at grade crossings...

Messick, Jennifer

1995-01-01T23:59:59.000Z

95

Fun with the Sun - Teacher's Activity Guide for Elementary Grades...  

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

Fun with the Sun - Teacher's Activity Guide for Elementary Grades K-2 Fun with the Sun - Teacher's Activity Guide for Elementary Grades K-2 Below is information about the student...

96

LNG FEM: Graded Meshes on Domains of Polygonal Structures  

E-Print Network (OSTI)

LNG FEM: Graded Meshes on Domains of Polygonal Structures Hengguang Li and Victor Nistor Abstract. We develop LNG FEM, a software package for graded mesh generation and for solving elliptic equations. LNG FEM gen- erates user-specified graded meshes on arbitrary 2D domains with straight edges

Nistor, Victor

97

Commercial Grade Dedication Survey and Training  

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

Office of Environmental Management Office of Environmental Management And Energy Facility Contractors Group Quality Assurance Improvement Project Plan Project Focus Area Task # and Description Deliverable Project Area 3-Commercial Grade Item and Services Dedication 3.1-Complete a survey of selected EM contractors to identify the process and basis for their CGI dedication program including safety classification of items being dedicated for nuclear applications within their facilities Completed Survey Approvals: Yes/No/NA Project Managers: S. Waisley, D. Tuttel Yes Executive Committee: D. Chung, J. Yanek, N. Barker, D. Amerine No EM QA Corporate Board: No Energy Facility Contractors Group EM/EFCOG Quality Assurance Improvement Project Plan Project Focus Area #3 -Commercial Grade Item and Services Dedication Implementation and Nuclear

98

Microsoft Word - Title page grade5.docx  

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

5 5 th grade Author: Angelique Harshman Editors: Beverly Baker, Angelique Harhsman, Rebecca Shankland, and Sue Watts Layout & Design: Claire Roybal of Claire Roybal & Associates Ltd. Pajarito Plateau Field Science Curriculum 5th Grade Lesson 2 Page 30 OVERVIEW OF LESSON In this activity, students will examine how tree parts work together, learn about the importance of snags for wildlife, and survey a wooded area for snags. STUDENT OBJECTIVES * Students will actively learn how all the parts of a tree function. * Students will participate in a scientific study analyzing a wooded area near their school. * Students will discuss the impact human activity can have on the environment. BACKGROUND Trees are truly amazing organisms. They are powered

99

A model for determining shelf life, estimating terminal body composition, yield grade and quality grade of feedlot cattle  

E-Print Network (OSTI)

as to style and content by: F. M. Byers (Chairman of Co m ttee) James McGrann (Member) ~&~& G. T. Schelling (Member) December 1986 ABSRACT A Model for Determining Shelf Life, Estimating Terminal Body Composition, Yield Grade and Quality Grade... of Feedlot Cattle. (December 1985) Richard Jay Perry, B, S. , Texas AlkM University Chairman of Advisory Committee: Dr. F, M. Byers A model for determining shelf life and estimating carcass fat (kg), yield grade and quality grade was developed. Shelf...

Perry, Richard Jay

1985-01-01T23:59:59.000Z

100

Modeling of functionally graded piezoelectric ultrasonic transducers  

Science Journals Connector (OSTI)

The application of functionally graded material (FGM) concept to piezoelectric transducers allows the design of composite transducers without interfaces, due to the continuous change of property values. Thus, large improvements can be achieved, as reduction of stress concentration, increasing of bonding strength, and bandwidth. This work proposes to design and to model FGM piezoelectric transducers and to compare their performance with non-FGM ones. Analytical and finite element (FE) modeling of FGM piezoelectric transducers radiating a plane pressure wave in fluid medium are developed and their results are compared. The ANSYS software is used for the FE modeling. The analytical model is based on FGM-equivalent acoustic transmission-line model, which is implemented using MATLAB software. Two cases are considered: (i) the transducer emits a pressure wave in water and it is composed of a graded piezoceramic disk, and backing and matching layers made of homogeneous materials; (ii) the transducer has no backing and matching layer; in this case, no external load is simulated. Time and frequency pressure responses are obtained through a transient analysis. The material properties are graded along thickness direction. Linear and exponential gradation functions are implemented to illustrate the influence of gradation on the transducer pressure response, electrical impedance, and resonance frequencies.

Wilfredo Montealegre Rubio; Flávio Buiochi; Julio Cezar Adamowski; Emílio Carlos Nelli Silva

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

Miscibility of blends of poly(methyl methacrylate) and oligodiols based on a bisphenol A nucleus and ethylene oxide or propylene oxide branches  

E-Print Network (OSTI)

Cloud-point curves of blends of poly(methyl methacrylate) (PMMA) with a series of oligodiols based on a bisphenol A nucleus and short branches of poly(ethylene oxide) or poly(propylene oxide) (BPA-EO or BPA-PO), and with PEO and PPO oligomers, were obtained using a light transmission device. Experimental results were fitted with the Flory- Huggins model using an interaction parameter depending on both temperature and composition. For PMMA/PEO and PMMA/PPO blends, the miscibility increased when increasing the size of the diol, due to the significant decrease in the entropic and enthalpic terms contributing to the interaction parameter. This reflected the decrease in the selfassociation of solvent molecules and in the contribution of terminal OH groups to the mismatching of solubility parameters. For PMMA/BPA-EO blends, a decrease of the entropic contribution to the interaction parameter when increasing the size of the oligodiol was also found. However, the effect was counterbalanced by the opposite contribution of combinatorial terms leading to cloud-point curves located in approximately the same temperature range. For PMMA/BPA-PO blends, the interaction parameter exhibited a very low value. In this case, the effect of solvent size was much more important on combinatorial terms than on the interaction parameter, leading to an increase in miscibility when decreasing the oligodiol size. For short BPA-PO oligodiols no phase separation was observed. The entropic contribution of the interaction parameter exhibited an inverse relationship with the size of the oligodiols, independent of the nature of the chains bearing the hydroxyls and the type of OH groups (primary or secondary). This indicates that the degree of self-association of solvent molecules through their OH terminal groups, was mainly determined by their relative sizes.

B. Jaffrennou; E. R. Soule; F. Mechin; J. Borrajo; J. P. Pascault; R. J. J. Williams

2013-11-21T23:59:59.000Z

102

Nondestructive Evaluation of Nuclear-Grade Graphite  

SciTech Connect

Nondestructive Evaluation of Nuclear Grade Graphite Dennis C. Kunerth and Timothy R. McJunkin Idaho National Laboratory Idaho Falls, ID, 83415 This paper discusses the nondestructive evaluation of nuclear grade graphite performed at the Idaho National Laboratory. Graphite is a composite material highly dependent on the base material and manufacturing methods. As a result, material variations are expected within individual billets as well billet to billet and lot to lot. Several methods of evaluating the material have been explored. Particular technologies each provide a subset of information about the material. This paper focuses on techniques that are applicable to in-service inspection of nuclear energy plant components. Eddy current examination of the available surfaces provides information on potential near surface structural defects and although limited, ultrasonics can be utilized in conventional volumetric inspection. Material condition (e.g. micro-cracking and porosity induced by radiation and stress) can be derived from backscatter or acousto-ultrasound (AU) methods. Novel approaches utilizing phased array ultrasonics have been attempted to expand the abilities of AU techniques. By combining variable placement of apertures, angle and depth of focus, the techniques provide the potential to obtain parameters at various depths in the material. Initial results of the study and possible procedures for application of the techniques are discussed.

Dennis C. Kunerth; Timothy R. McJunkin

2011-07-01T23:59:59.000Z

103

Multifractal Detrended Fluctuation Analysis Shows Promise For Brain Tumor Grading  

Science Journals Connector (OSTI)

This work proposes a novel non-invasive method for brain tumor grading using magnetic resonance imaging (MRI). Multifractal Detrended Fluctuation Analysis (MFDFA) [1] provides features...

Reza, Syed; Mays, Randall; Iftekharuddin, Khan M

104

Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...  

Annual Energy Outlook 2012 (EIA)

Information Administration Petroleum Marketing Annual 1995 Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding...

105

Table 32. Conventional Motor Gasoline Prices by Grade, Sales...  

Gasoline and Diesel Fuel Update (EIA)

Administration Petroleum Marketing Annual 1995 Table 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding...

106

Table 32. Conventional Motor Gasoline Prices by Grade, Sales...  

Gasoline and Diesel Fuel Update (EIA)

- - - - W W - - - - - - See footnotes at end of table. 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 86 Energy Information...

107

Table 32. Conventional Motor Gasoline Prices by Grade, Sales...  

Gasoline and Diesel Fuel Update (EIA)

AdministrationPetroleum Marketing Annual 1998 Table 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding...

108

Table 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type...  

Annual Energy Outlook 2012 (EIA)

Administration Petroleum Marketing Annual 1995 Table 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding...

109

Table 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type...  

Annual Energy Outlook 2012 (EIA)

- - - - - - - - - - - - See footnotes at end of table. 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 116 Energy Information...

110

Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...  

Gasoline and Diesel Fuel Update (EIA)

Administration Petroleum Marketing Annual 1995 Table 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding...

111

Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...  

Annual Energy Outlook 2012 (EIA)

Information AdministrationPetroleum Marketing Annual 1999 Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding...

112

Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...  

Annual Energy Outlook 2012 (EIA)

Information AdministrationPetroleum Marketing Annual 1998 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per Day) -...

113

Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...  

Gasoline and Diesel Fuel Update (EIA)

Information AdministrationPetroleum Marketing Annual 1998 Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding...

114

Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...  

Annual Energy Outlook 2012 (EIA)

Information Administration Petroleum Marketing Annual 1995 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per Day) -...

115

Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...  

Gasoline and Diesel Fuel Update (EIA)

Information AdministrationPetroleum Marketing Annual 1999 Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State (Thousand Gallons per Day) -...

116

Table 32. Conventional Motor Gasoline Prices by Grade, Sales...  

Gasoline and Diesel Fuel Update (EIA)

- - - - 64.7 64.7 - - - - - - See footnotes at end of table. 32. Conventional Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 86 Energy Information...

117

Imports of Propane/Propylene  

Annual Energy Outlook 2012 (EIA)

123 87 72 74 85 92 2004-2014 East Coast (PADD 1) 19 23 23 32 41 48 1993-2014 Midwest (PADD 2) 92 42 36 25 25 21 1993-2014 Gulf Coast (PADD 3) 0 0 0 0 0 0 1993...

118

Stocks of Propane/Propylene  

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

80,271 80,127 81,053 81,152 79,201 79,416 1993-2014 PADD 1 6,167 6,143 6,218 6,187 6,111 6,061 1993-2014 New England 654 651 646 641 629 612 1993-2014 Central Atlantic 3,684 3,664...

119

Graded Materials for Resistance to Contact Deformation and Damage  

E-Print Network (OSTI)

Graded Materials for Resistance to Contact Deformation and Damage S. Suresh The mechanical response, materials sci- entists increasingly aim to engineer graded materials that are more damage-resistant than of materials with spatial gradients in composition and structure is of considerable interest in disciplines

Suresh, Subra

120

ComputerDerived Nuclear "Grade" and Breast Cancer Prognosis  

E-Print Network (OSTI)

Wolberg 1 Computer­Derived Nuclear "Grade" and Breast Cancer Prognosis William H. Wolberg, M.D., W of nuclear grade are subjective, yet still prognostically important. Now, computer­based analytical techniques can objectively and accurately measure size, shape, and texture features that constitute nuclear

Street, Nick

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

Optimization For Grade Transitions In Polyethylene Solution Polymerization  

E-Print Network (OSTI)

Optimization For Grade Transitions In Polyethylene Solution Polymerization Jun Shi1, Intan Hamdan2 Engineering Carnegie Mellon University 2The Dow Chemical Company #12;Dynamic Optimization Models Grade Transition for LLDPE · Continuous Stirred-Tank Reactor (CSTR) (represents two actual processes) · Assume

Grossmann, Ignacio E.

122

Elasticity solutions for plane anisotropic functionally graded beams  

E-Print Network (OSTI)

Elasticity solutions for plane anisotropic functionally graded beams H.J. Ding a , D.J. Huang a This paper considers the plane stress problem of generally anisotropic beams with elastic compliance of anisotropic functionally graded plane beams, with the integral constants completely determined from boundary

Wang, Ji

123

SEM CR GRADE Intro to Chem Eng 1  

E-Print Network (OSTI)

Physics 2 First Year Sophomore Year Junior Year Senior Year Fall__ Spring__ Fall__ Spring__ Fall__ Spring__ Fall__ Spring__ SEM CR GRADE 3 CHEM 683 Physical Chemistry 1 Continuous line = prerequisite, dashed GRADE 3 CHEM 652A Organic Chemistry 2 Chemical Engineering Department University of New Hampshire

Pringle, James "Jamie"

124

Low-Cost Illumination-Grade LEDs  

SciTech Connect

Solid State Lighting is a cost-effective, energy-conserving technology serving a rapidly expand- ing multi-billion dollar market. This program was designed to accelerate this lighting revolution by reducing the manufacturing cost of Illumination-Grade LEDs. The technical strategy was to investigate growth substrate alternatives to standard planar sapphire, select the most effective and compatible option, and demonstrate a significant increase in Lumen/$ with a marketable LED. The most obvious alternate substrate, silicon, was extensively studied in the first two years of the program. The superior thermal and mechanical properties of Si were expected to improve wavelength uniformity and hence color yield in the manufacture of high-power illumination- grade LEDs. However, improvements in efficiency and epitaxy uniformity on standard c-plane sapphire diminished the advantages of switching to Si. Furthermore, the cost of sapphire decreased significantly and the cost of processing Si devices using our thin film process was higher than expected. We concluded that GaN on Si was a viable technology but not a practical option for Philips Lumileds. Therefore in 2012 and 2013, we sought and received amendments which broadened the scope to include other substrates and extended the time of execution. Proprietary engineered substrates, off-axis (non-c-plane) sapphire, and c-plane patterned sapphire substrates (PSS) were all investigated in the final 18 months of this program. Excellent epitaxy quality was achieved on all three candidates; however we eliminated engineered substrates and non-c-plane sapphire because of their higher combined cost of substrate, device fabrication and packaging. Ultimately, by fabricating a flip-chip (FC) LED based upon c-plane PSS we attained a 42% reduction in LED manufacturing cost relative to our LUXEON Rebel product (Q1-2012). Combined with a flux gain from 85 to 102 Lm, the LUXEON Q delivered a 210% increase in Lm/$ over this time period. The technology was commercialized in our LUXEON Q product in Sept., 2013. Also, the retention of the sapphire increased the robustness of the device, enabling sales of low-cost submount-free chips to lighting manufacturers. Thus, blue LED die sales were initiated in the form of a PSS-FC in February, 2013.

Epler, John

2013-08-31T23:59:59.000Z

125

Refiner Prices of Gasoline, All Grades - Sales to End Users  

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

Product/ Sales Type: Gasoline, All Grades - Sales to End Users (U.S. only) Gasoline, All Grades - Through Retail Outlets Gasoline, All Grades - Other End Users Gasoline, All Grades - Sales for Resale Gasoline, All Grades - DTW (U.S. only) Gasoline, All Grades - Rack (U.S. only) Gasoline, All Grades - Bulk (U.S. only) Regular Gasoline - Sales to End Users (U.S. only) Regular Gasoline - Through Retail Outlets Regular Gasoline - Other End Users Regular Gasoline - Sales for Resale Regular Gasoline - DTW (U.S. only) Regular Gasoline - Rack (U.S. only) Regular Gasoline - Bulk (U.S. only) Midgrade Gasoline - Sales to End Users (U.S. only) Midgrade Gasoline - Through Retail Outlets Midgrade Gasoline - Other End Users Midgrade Gasoline - Sales for Resale Midgrade Gasoline - DTW (U.S. only) Midgrade Gasoline - Rack (U.S. only) Midgrade Gasoline - Bulk (U.S. only) Premium - Sales to End Users (U.S. only) Premium Gasoline - Through Retail Outlets Premium Gasoline - Other End Users Premium Gasoline - Sales for Resale Premium Gasoline - DTW (U.S. only) Premium Gasoline - Rack (U.S. only) Premium Gasoline - Bulk (U.S. only) Period: Monthly Annual

126

Petroleum Products Table 31. Motor Gasoline Prices by Grade...  

Annual Energy Outlook 2012 (EIA)

99.2 - 105.3 See footnotes at end of table. 56 Energy Information AdministrationPetroleum Marketing Annual 2000 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD...

127

Petroleum Products Table 31. Motor Gasoline Prices by Grade...  

Gasoline and Diesel Fuel Update (EIA)

66.6 - 72.3 See footnotes at end of table. 56 Energy Information Administration Petroleum Marketing Annual 1995 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD...

128

Agriculture Education Curriculum Grades 6-12 (BS)  

E-Print Network (OSTI)

Agriculture Education Curriculum Grades 6-12 (BS) Freshman Year English (GER) English 101, 102..................................................... 3 Agricultural Science 209,211..............................3 Animal Science 111...................................................3 Agricultural Business 220................................... 3 Content Electives

Selmic, Sandra

129

Mathematics Assessment Alignment Matrix for Grades 2-12  

E-Print Network (OSTI)

Mathematics Assessment Alignment Matrix for Grades 2-12 California High School Exit Examination, California Standards Tests, Mathematics Diagnostic Testing Program, Entry Level Mathematics Based Effort by Orange County Department of Education, California State University, Fullerton - Mathematics

de Lijser, Peter

130

Predicting and Utilizing the Vehicle's Past and Futuer Road Grade  

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

Predicted road grade may be used to estimate the power required to propel the vehicle through the upcoming terrain so that the engine controller can deliver the necessary power.

131

The homogeneous spectrum of a graded commutative ring  

E-Print Network (OSTI)

Rn is a Z-graded integral domain, if t is a nonzero element of R1, and if H is the multiplicative set of .... ian, then Spec R is Noetherian. Without the assumption in

1910-10-83T23:59:59.000Z

132

TIGHT CLOSURE IN GRADED RINGS Karen E. Smith \\Lambda  

E-Print Network (OSTI)

TIGHT CLOSURE IN GRADED RINGS Karen E. Smith \\Lambda Abstract. This paper facilitates is supported by the U.S. National Science Foundation. Typeset by A M S­T E X 1 #12; 2 KAREN E. SMITH \\Lambda

Smith, Karen E.

133

Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...  

Gasoline and Diesel Fuel Update (EIA)

2,026.7 W W 234.5 161.7 - 396.3 See footnotes at end of table. 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State 262 Energy Information...

134

Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...  

Annual Energy Outlook 2012 (EIA)

70.8 92.7 90.7 81.5 72.8 - 78.0 See footnotes at end of table. 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 146 Energy Information...

135

Table 43. Refiner Motor Gasoline Volumes by Grade, Sales Type...  

Gasoline and Diesel Fuel Update (EIA)

2,222.4 W W 206.4 134.3 - 340.7 See footnotes at end of table. 43. Refiner Motor Gasoline Volumes by Grade, Sales Type, PAD District, and State 262 Energy Information...

136

Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...  

Gasoline and Diesel Fuel Update (EIA)

71.7 92.3 89.9 82.6 72.7 - 78.2 See footnotes at end of table. 34. Reformulated Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 146 Energy Information...

137

Mastery of sixth grade TEKS objectives through integrated learning  

E-Print Network (OSTI)

. Lindner The purpose of this study was to assess learning in sixth grade students? by gain scores in science and mathematics while participating in the integrative curriculum modules developed by the Partnership for Environmental Education... treatment in this study. The alliance of the PEER Program and Texas A&M University has developed a middle school integrated curriculum based on sixth grade mathematics, science, English, reading and social studies TEKS (Texas Essential Knowledge...

Trevino-Anderson, Monika Raquel

2005-02-17T23:59:59.000Z

138

U.S. Dept of Energy’s EECBG-SEP Technical Assistance Program Webcast ESPC Investment Grade Audit  

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

Learn what the investment grade audit is, what to expect from an investment grade audit, how to ensure IGA success.

139

A study of teacher solicitations and student responses during read-alouds with kindergarten, first grade, and second grade students  

E-Print Network (OSTI)

responses as these interactions occur during read-alouds with Kindergarten, first, and second grade students. The significance of this study was to advance the knowledge base of the nature of read-alouds within the context of teacher solicitations...

Garcia, Norma Garza

2009-06-02T23:59:59.000Z

140

UNIFORM GRADING SYMBOLS: GLOSSARY AND GUIDELINES I. The following glossary of uniform grading symbols shall be employed according  

E-Print Network (OSTI)

. Quality points are to be used to calculate the grade point average (GPA) or index. A dash "--" indicates Satisfactory 2.00 C- 1.70 D+ 1.30 D Passing 1.00 D- 0.70 F Failure/Unsuccessful Completion of Course 0.00 P Grade pending. Y Year or longer course of study must continue to completion. - SP Satisfactory progress

Lombardi, John R.

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

Solar-Grade Silicon from Metallurgical-Grade Silicon Via Iodine Chemical Vapor Transport Purification: Preprint  

SciTech Connect

This conference paper describes the atmospheric-pressure in an ''open'' reactor, SiI2 transfers from a hot (>1100C) Si source to a cooler (>750C) Si substrate and decomposes easily via 2SiI2 Si+ SiI4 with up to 5?m/min deposition rate. SiI4 returns to cyclically transport more Si. When the source is metallurgical-grade Si, impurities can be effectively removed by three mechanisms: (1) differing free energies of formation in forming silicon and impurity iodides; (2) distillation; and (3) differing standard free energies of formation during deposition. Distillation has been previously reported. Here, we focused on mechanisms (1) and (3). We made feedstock, analyzed the impurity levels, grew Czochralski single crystals, and evaluated crystal and photovoltaic properties. Cell efficiencies of 9.5% were obtained. Incorporating distillation (step 2) should increase this to a viable level.

Ciszek, T. F.; Wang, T. H.; Page, M. R.; Bauer, R. E.; Landry, M. D.

2002-05-01T23:59:59.000Z

142

Fun with the Sun- Teacher's Activity Guide for Elementary Grades K-2  

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

Outdoor solar activities. Grades: K-4 Subject: Energy Basics , Wind Energy , Energy Efficiency and Conservation

143

Examining the Differences Between Pre-K Through Second Grade Teachers' Perceptions and Third Through Fourth Grade Teachers' Perceptions of Cultural Awareness and Beliefs in One Urban District  

E-Print Network (OSTI)

of Kruskal-Wallis Values of Pre-K through 4th Grade Teachers? Perceptions as Measured by the CABI .................................... 116 4.21 Means and Standard Deviations of Pre-K through 4th Grade, Teachers? Perceptions... of Kruskal-Wallis Values of Pre-K through 4th Grade Teachers? Perceptions as Measured by the CABI .................................... 116 4.21 Means and Standard Deviations of Pre-K through 4th Grade, Teachers? Perceptions...

Plimper, Ouida C.

2010-07-14T23:59:59.000Z

144

Hot Cell Examination of Weapons-Grade MOX Fuel  

SciTech Connect

The U.S. Department of Energy has decided to dispose of a portion of the nation s surplus weapons-grade plutonium by reconstituting it into mixed oxide (MOX) fuel and irradiating it in commercial power reactors. Four lead assemblies were manufactured with weapons-grade MOX and irradiated to a maximum fuel rod burnup of 47.3 MWd/kg. As part of the fuel qualification process, five fuel rods with varying burnups and plutonium contents were selected from one of the assemblies and shipped to Oak Ridge National Laboratory for hot cell examination. This is the first hot cell examination of weapons-grade MOX fuel. The rods have been examined nondestructively with the ADEPT apparatus and are currently being destructively examined. Examinations completed to date include length measurements, visual examination, gamma scanning, profilometry, eddy-current testing, gas measurement and analysis, and optical metallography. Representative results of these examinations are reviewed and found to be consistent with predictions and with prior experience with reactor-grade MOX fuel. The results will be used to support licensing of weapons-grade MOX for batch use in commercial power reactors.

Morris, Robert Noel [ORNL; Bevard, Bruce Balkcom [ORNL; McCoy, Kevin [Areva NP

2010-01-01T23:59:59.000Z

145

Strategies for denaturing the weapons-grade plutonium stockpile  

SciTech Connect

In the next few years, approximately 50 metric tons of weapons-grade plutonium and 150 metric tons of highly-enriched uranium (HEU) may be removed from nuclear weapons in the US and declared excess. These materials represent a significant energy resource that could substantially contribute to our national energy requirements. HEU can be used as fuel in naval reactors, or diluted with depleted uranium for use as fuel in commercial reactors. This paper proposes to use the weapons-grade plutonium as fuel in light water reactors. The first such reactor would demonstrate the dual objectives of producing electrical power and denaturing the plutonium to prevent use in nuclear weapons.

Buckner, M.R.; Parks, P.B.

1992-10-01T23:59:59.000Z

146

Effective Thermal Conductivity of Graded Nanocomposites with Interfacial Thermal  

E-Print Network (OSTI)

.M. Yin", G. H. Paulino", W.G. Buttlar", and L.Z. Sun'' '^Department of Civil and Environmental the effective thermal conductivity distribution in functionally graded materials (FGMs) considering the Kapitza is developed to derive the averaged heat flux field of the particle phase. Then the temperature gradient can

Paulino, Glaucio H.

147

A Production-grade Testbed for Experiment-driven Computer  

E-Print Network (OSTI)

A Production-grade Testbed for Experiment-driven Computer Science on HPC and Clouds http://www.grid and monitoring infrastructure Support for Big Data and Open Science Access high end hardware networks High a free account http://www.grid5000.fr/open-access 1200 nodes (8000 cores) in 10 sites 500+ users per year

Boyer, Edmond

148

Thermally Induced Stresses in Functionally Graded Thick Tubes  

E-Print Network (OSTI)

thermal barrier coating for high temperature applications, a discrete layer of ceramic material is bondedThermally Induced Stresses in Functionally Graded Thick Tubes Senthil S. Vel and Rajeev Baskiyar method to obtain the temperature, displacements and thermal stresses. In addition to the thermal

Vel, Senthil

149

Road Grade Estimation for Look-ahead Vehicle Control  

E-Print Network (OSTI)

to help meet the instantaneous power demand while keeping fuel consumption and environmental impact as low conserve fuel without increasing trip time. The preview road grade information can also be uti- lized when power comsumption scheduling over time can improve total energy efficiency, as explored in Pettersson

Johansson, Karl Henrik

150

Disposition of weapons-grade plutonium in Westinghouse reactors  

E-Print Network (OSTI)

We have studied the feasibility of using weapons-grade plutonium in the form of mixed-oxide (MOX) fuel in existing Westinghouse reactors. We have designed three transition cycles from an all LEU core to a partial MOX core. We found that four...

Alsaed, Abdelhalim Ali

2012-06-07T23:59:59.000Z

151

MAT in Middle Grades Handbook Terms in this Handbook  

E-Print Network (OSTI)

MAT in Middle Grades Handbook Terms in this Handbook: Admissions Advising Bookends Capstone Call: As a practitioners' program, the MAT does not require a master's thesis or a comprehensive exam for graduation. All require a PowerPoint or a physical representation of the simile (tri-fold board, for example). Changing

Duchowski, Andrew T.

152

ORIGINAL ARTICLE Utilization of diets containing graded levels of ethanol  

E-Print Network (OSTI)

ORIGINAL ARTICLE Utilization of diets containing graded levels of ethanol production co in aquaculture diets, containing well-balanced profiles of amino acids, fatty acids, digestible energy, vitamins to manufacture fuel ethanol (Rosentrater and Muthukumarappan, 2006). In 2008, 174 operating ethanol plants

153

SMITH INVARIANTS AND DUAL GRADED GRAPHS ALEXANDER MILLER  

E-Print Network (OSTI)

SMITH INVARIANTS AND DUAL GRADED GRAPHS ALEXANDER MILLER Abstract. The aim of this paper the Smith invariants immediately, as the eigenvalues are completely understood [3, 15]. Furthermore, we. Background 1 1.1. Differential posets 1 1.2. Eigenvalues 3 1.3. Smith invariants 3 2. Conjecture for r

Weinberger, Hans

154

FBC could give new life to low-grade coal  

SciTech Connect

Fluidised-bed combustion is gaining a foothold in the US industrial steam boiler market because of the wide range of coals that can be utilised, including those which are of very low grade. The prospects for using this technology for electricity generation are also considered to be good, and information is given on several demonstration plants which are planned.

Not Available

1984-08-01T23:59:59.000Z

155

Graded Effects of Proteinuria on HDL Structure in Nephrotic Rats  

E-Print Network (OSTI)

Graded Effects of Proteinuria on HDL Structure in Nephrotic Rats Gregory C. Shearer,* John W isolated from rats with massive proteinuria is depleted in apolipoprotein E (apoE). It is unknown at what on apolipoproteins other than apoE. Two models of albuminuria were used in Sprague-Dawley rats: Adriamycin

Hammock, Bruce D.

156

WEAK SUBINTEGRALITY AND INVERTIBLE MODULES IN GRADED RINGS  

E-Print Network (OSTI)

WEAK SUBINTEGRALITY AND INVERTIBLE MODULES IN GRADED RINGSB=A : B=A ! I (A?, B?). Here A? is the divided power algebra associated with A, which is the ring having, then the homomorphism iB=A : B=A ! I (A?, B?) is an isomorphism. A key new observation used in the proof

Roberts, Leslie

157

Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...  

Gasoline and Diesel Fuel Update (EIA)

W W 78.6 W 85.7 81.8 W 69.3 73.8 See footnotes at end of table. 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District and State 176 Energy Information...

158

Table 35. Refiner Motor Gasoline Prices by Grade, Sales Type...  

Gasoline and Diesel Fuel Update (EIA)

W 70.5 78.9 W 76.0 83.6 W 69.2 75.2 See footnotes at end of table. 35. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District and State 176 Energy Information...

159

E-Print Network 3.0 - at grade intersections Sample Search Results  

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

Operations Research Collection: Engineering 6 LIE TORI OF TYPE B2 AND GRADED-SIMPLE JORDAN STRUCTURES COVERED BY A TRIANGLE Summary: LIE TORI OF TYPE B2 AND GRADED-SIMPLE JORDAN...

160

Microsoft Word - 2nd grade PRINT FINAL-katiebeth.docx  

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

2 2 nd grade Author: Kelly Larson Editors: Beverly Baker, Angelique Harshman, Rebecca Shankland, and Sue Watts Layout & Design: Claire Roybal of Claire Roybal & Associates Ltd. Pajarito Plateau Field Science Curriculum 2 nd Grade Lesson 2 Page 7 OVERVIEW OF LESSON In this activity, students will locate and observe an ant trail (a line of ants) without interfering in any way. Next they will test the responses of ants using various experiments. Students will determine how ants communicate based on their observations. All results are recorded on a data sheet and shared in a class discussion. STUDENT OBJECTIVES * Students will observe and record ant interactions. * Students will predict and identify how ants respond to various foods.

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

Upgrading Below Grade Spaces: A Look Inside the Remodeling Industry  

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

Below Grade Spaces: Below Grade Spaces: A Look Inside the Remodeling Industry Steve Schirber Cocoon steve@cocoon-solutions.com How do we insulate a basement? How do we insulate a basement? It all starts with the consumer! What is the Consumer buying and why? What is the Consumer buying and why? 1. Square footage What is the Consumer buying and why? 1. Square footage 2. Finishes What is the Consumer buying and why? 1. Square footage 2. Finishes 3. An experience What is the Consumer buying and why? 1. Square footage 2. Finishes 3. An experience 4. Performance Who does the Consumer buy from and why? Who does the Consumer buy from and why? 1. DIY/Box store Who does the Consumer buy from and why? 1. DIY/Box store 2. Friend/Relative Who does the Consumer buy from

162

Friction and wear behavior of ultra-high molecular weight polyethylene as a function of polymer crystallinity  

E-Print Network (OSTI)

Friction and wear behavior of ultra-high molecular weight polyethylene as a function of polymer-grade ultra-high molecular weight polyethylene (UHMWPE) (GUR 1050 resin) were evaluated as a function replacements; Ultra-high molecular weight polyethylene (UHMWPE); Crystallinity; Friction; Wear 1. Introduction

Lin, Zhiqun

163

Milnor K-theory and the graded representation ring  

E-Print Network (OSTI)

Let F be a field, let G be its absolute Galois group, and let R(G, k) be the representation ring of G over a suitable field k. In this preprint we construct a ring homomorphism from the mod 2 Milnor K-theory k_*(F) to the graded ring gr R(G, k) associated to Grothendieck's \\gamma-filtration. We study this map in particular cases, as well as a related map involving the W-group of F rather than G. The latter is an isomorphism in all cases considered. Naturally this echoes the Milnor conjecture (now a theorem), which states that k_*(F) is isomorphic to the mod 2 cohomology of the absolute Galois group G, and to the graded Witt ring gr W(F). The machinery developed to obtain the above results seems to have independent interest in algebraic topology. We are led to construct an analog of the classical Chern character, which does not involve complex vector bundles and Chern classes but rather real vector bundles and Stiefel-Whitney classes. Thus we show the existence of a ring homomorphism whose source is the graded...

Guillot, Pierre

2011-01-01T23:59:59.000Z

164

Role of Nuclear Grade Graphite in Oxidation in Modular HTGRs  

SciTech Connect

The passively safe High Temperature Gas-cooled Reactor (HTGR) design is one of the primary concepts considered for Generation IV and Small Modular Reactor (SMR) programs. The helium cooled, nuclear grade graphite moderated core achieves extremely high operating temperatures allowing either industrial process heat or electricity generation at high efficiencies. In addition to their neutron moderating properties, nuclear grade graphite core components provide excellent high temperature stability, thermal conductivity, and chemical compatibility with the high temperature nuclear fuel form. Graphite has been continuously used in nuclear reactors since the 1940’s and has performed remarkably well over a wide range of core environments and operating conditions. Graphite moderated, gas-cooled reactor designs have been safely used for research and power production purposes in multiple countries since the inception of nuclear energy development. However, graphite is a carbonaceous material, and this has generated a persistent concern that the graphite components could actually burn during either normal or accident conditions [ , ]. The common assumption is that graphite, since it is ostensibly similar to charcoal and coal, will burn in a similar manner. While charcoal and coal may have the appearance of graphite, the internal microstructure and impurities within these carbonaceous materials are very different. Volatile species and trapped moisture provide a source of oxygen within coal and charcoal allowing them to burn. The fabrication process used to produce nuclear grade graphite eliminates these oxidation enhancing impurities, creating a dense, highly ordered form of carbon possessing high thermal diffusivity and strongly (covalently) bonded atoms.

Willaim Windes; G. Strydom; J. Kane; R. Smith

2014-11-01T23:59:59.000Z

165

Model-based optimization of economical grade changes for the Borealis Borstar® polyethylene plant  

Science Journals Connector (OSTI)

Economical grade changes are considered for a Borealis Borstar® polyethylene plant model, incorporating two slurry-phase reactors, one gas-phase reactor and a recycle area with three distillation columns. The model is constructed in the Modelica language and the JModelica.org platform is used for optimization. The cost function expresses the economical profit during a grade change and is formulated using on-grade intervals for seven polymer quality variables such as melt index, density and reactor split factors. Additionally, incentives to produce polymer with quality variables on grade target values, not only inside grade intervals, are added. Twelve inflows and three purge flows are used as decision variables. Two grade changes are thoroughly reviewed, showing the effect of using a cost function that regards plant economy. Resulting trajectories can be divided into three phases with distinguishing features, and the synchronization of inflows and usage of recycle area off-gas flows are important in the grade changes.

Per-Ola Larsson; Johan Åkesson; Niclas Carlsson; Niklas Andersson

2012-01-01T23:59:59.000Z

166

Graded pitch electromagnetic pump for thin strip metal casting systems  

DOE Patents (OSTI)

A metal strip casing system is provided with an electromagnetic pump which includes a pair of primary blocks having a graded pole pitch, polyphase ac winding and being arranged on opposite sides of a movable heat sink. A nozzle is provided for depositing liquid metal on the heat sink such that the resulting metal strip and heat sink combination is subjected to a longitudinal electromagnetic field which increases in wavelength in the direction of travel of the heat sink, thereby subjecting the metal and heat sink to a longitudinal force having a magnitude which increases in the direction of travel. 4 figs.

Kuznetsov, S.B.

1986-04-01T23:59:59.000Z

167

Correlating the NMR self-diffusion and relaxation measurements with ionic conductivity in polymer electrolytes composed of cross-linked poly(ethylene oxide-propylene oxide) doped with LiN(SO 2 CF 3 ) 2  

Science Journals Connector (OSTI)

A solvent-free solid-polymer electrolyte based on a cross-linked poly(ethylene oxide-propylene oxide) random copolymer doped with LiN(SO 2 CF 3 ) 2 was studied using multinuclear NMR and ionic conductivity. The NMR spin-lattice relaxation times T 1 of the bulk polymer ( 1 H ) the lithium ion ( 7 Li ) and the anion ( 19 F ) were analyzed using single exponential analysis above the glass transition temperatures. Since the temperature dependent 1 H and 7 Li NMR T 1 values had minima the reorientational correlation times were obtained for the segmental motion of the CH 2 CH 2 O/ CH 2 CH ( CH 3 ) O moiety of the bulk polymer and the hopping motion of the lithium ions correlated with the segmental motion. The spin–spin relaxation of the anion signals appeared single exponential with respect to time whereas that of the polymer and the lithium echo signals were at least bi-exponential. Since both the spin-lattice and spin–spin relaxation of the anion indicated a single component the self-diffusion coefficients D were measured using 19 F pulsed-gradient spin-echo (PGSE) NMR measurements. Although the PGSE attenuation data appeared single exponential at each value of the separation between the gradient pulses ? the measured D values had a ? -dependence. Phenomenologically the anion diffuses quicker in a shorter range and the activation energy of the shorter-time diffusion is smaller than that of the longer-time diffusion. The apparent self-diffusion coefficients became smaller for longer ? and approached a constant when ? was longer than 0.05 s. The mean square displacements of the anion were inconsistent with standard diffusion models including “anomalous diffusion” as found for a neutral particle diffusing in a fractal network [i.e. ?r 2 (?)??? ? with ?<1(??2/d w where d w is the random walk fractal dimension)]. The apparent diffusion coefficients of the lithium ions at ?=0.02? s are almost independent of temperature and smaller than the corresponding diffusion coefficients of the anion. Since the activation energy of the anion determined for ? longer than 0.05 s correlates well with those obtained from the ionic conductivity the ion conduction in the solid-polymer medium is driven mainly by fast transfer of the anions.

Kikuko Hayamizu; Yuichi Aihara; William S. Price

2000-01-01T23:59:59.000Z

168

Heavy wall casing in C110 grade for sour service  

SciTech Connect

The recent developments of high pressure and sour wells in the North Sea area have increased the need for high strength H{sub 2}S resistant carbon steels. Steel chemistry and heat treatment solutions have been available to provide products suitable for use in these environments within the constraints of classic well design since the early 90`s but operators are now demanding higher strength and heavier wall products for HPHT wells. Well completion design teams are now specifying from OCTG suppliers C110 grade products in increasingly heavy wall and the challenge facing suppliers is to guarantee product integrity not only of these heavy wall casing but also the associated coupling stocks. This paper was aimed at evaluating the performances of thick walled C110 tubulars (up to 2in) for sour environments. Metallurgical characteristics (microstructure, structure, microhardness), mechanical properties (hardness, tensile, toughness), Sulfide Stress Cracking resistance (smooth tensile, DCB) have been investigated throughout the wall thickness. The C110 proprietary grade proved to be an excellent material for use as Oil Country Tubular Goods (OCTG) in typical North Sea environments with improved assessment of H2S corrosion resistance properties according to both NACE and EFC (European Federation of Corrosion) philosophies.

Linne, C.P.; Blanchard, F.; Puissochet, F. [Vallourec Research Center, Aulnoye Aymeries (France). Corrosion and Metallurgical Dept.; Orlans-Joliet, B.J.; Hamilton, R.S.

1998-12-31T23:59:59.000Z

169

Propane/Propylene Days of Supply  

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

Weekly Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 102414 103114 110714 111414...

170

Additive Manufacturing Methodology and System for Fabrication of Porous Structures with Functionally Graded Properties.  

E-Print Network (OSTI)

??The focus of this dissertation is on the development of an additive manufacturing system and methodology for fabricating structures with functionally graded porous internal properties… (more)

Vlasea, Mihaela

2014-01-01T23:59:59.000Z

171

NQA-1 Requirements for Commercial Grade Item Acceptance: ICONE20-54738  

SciTech Connect

Objectives are: (1) Present the DOE Chemistry and Metallurgy Research Replacement (CMRR) Project Commercial Grade Item (CGI) Dedication Process; and (2) Present CMRR Project CGI Lessons-Learned.

Van Valkenburg, Taunia S. [Los Alamos National Laboratory; Holmes, Richard A. [Los Alamos National Laboratory; Tepley, Daniel J. [Los Alamos National Laboratory; Sandquist, Gary [APPLIED SCIENCE PROFESSIONALS

2012-07-19T23:59:59.000Z

172

Table 14. U.S. Propane (Consumer Grade) Prices by Sales Type  

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

and EIA-782B, "Resellers'Retailers' Monthly Petroleum Product Sales Report." 14. U.S. Propane (Consumer Grade) Prices by Sales Type 28 Energy Information Administration ...

173

December 12, 2013 Webinar - The Use of Graded Approach in Hanford...  

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

Modeling Alaa H. Aly (CHPRCINTERA) & Dibakar Goswami ( Washington State Department of Ecology) Regulatory Basis and Implementation of a Graded Approach to Evaluation of...

174

Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District...  

Annual Energy Outlook 2012 (EIA)

56 Energy Information AdministrationPetroleum Marketing Annual 1999 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding...

175

Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District...  

Annual Energy Outlook 2012 (EIA)

56 Energy Information AdministrationPetroleum Marketing Annual 1998 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding...

176

Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District...  

Gasoline and Diesel Fuel Update (EIA)

Energy Information Administration Petroleum Marketing Annual 1995 Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State (Cents per Gallon Excluding...

177

Table A1. Refiner/Reseller Motor Gasoline Prices by Grade, PAD...  

Annual Energy Outlook 2012 (EIA)

AdministrationPetroleum Marketing Annual 1999 401 Table A1. RefinerReseller Motor Gasoline Prices by Grade, PAD District and State, 1984-Present (Cents per Gallon Excluding...

178

Ro(g)-graded equivariant cohomology theory and sheaves  

E-Print Network (OSTI)

consequence of the latter is that we get a simple model of the Eilenberg-MacLane space K(M;V). Proposition II.18 further identi es the homotopy groups of the G- xed subset of this model space with some RO(G)-graded Bredon cohomology groups of a point... XH ! = HomG-Top(G=H;X); 6 where sends a2XH to fa : G=H!X with fa(gH) = ga. The inverse of sends f2HomG-Top(G=H;X) to f(H). Proof. See [tD87, p. 25, Proposition 3.8]. If (X j 2J) is a collection of G-spaces then the product Q 2J X is again a G...

Yang, Haibo

2009-05-15T23:59:59.000Z

179

Fracture Behavior and Properties of Functionally Graded Fiber-Reinforced Concrete  

E-Print Network (OSTI)

demand placed on the materials used for pavement infrastructure, while the availability of high quality- functional by resistance to mechanical loadings, stresses from thermal or moisture gradients, early graded materials (FGM) have been extensively applied to high performance materials such as graded metals

Paulino, Glaucio H.

180

EXAMINATION REQUIREMENTS FOR CERTIFICATION Early Childhood Education, Birth to Grade 2  

E-Print Network (OSTI)

EXAMINATION REQUIREMENTS FOR CERTIFICATION Early Childhood Education, Birth to Grade 2: 1. Academic Test (ALST) 2. Educating All Students (EAS) 3. CST Literacy Students with Disabilities, Birth to Grade FOR CERTIFICATION Deaf and Hard of Hearing, Pre K-12 1. Liberal Arts and Science Test (LAST) 2. Academic Literacy

Qiu, Weigang

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

LNG FEM: GENERATING GRADED MESHES AND SOLVING ELLIPTIC EQUATIONS ON 2-D DOMAINS OF POLYGONAL STRUCTURES  

E-Print Network (OSTI)

LNG FEM: GENERATING GRADED MESHES AND SOLVING ELLIPTIC EQUATIONS ON 2-D DOMAINS OF POLYGONAL, Minnesota 55455­0436 Phone: 612-624-6066 Fax: 612-626-7370 URL: http://www.ima.umn.edu #12;LNG FEM AND VICTOR NISTOR Abstract. We develop LNG FEM, a software package for graded mesh gen- eration

182

Changing the School Year: The Texas Experience in Moving to a Twelve-Grade Academic Program  

E-Print Network (OSTI)

, two state senators introduced plans to cut the twelfth grade in an effort to alleviate an $829 million budget shortfall. Their reasoning: most twelfth- graders do not take a full load of classes, and students could take their senior year courses...) ...................................................................................................... 39 Figure 3. Plan for student placement ................................................................................ 74 xi LIST OF TABLES Page Table 1. Texas’s Eleven-Grade Plans...

Watlington, Kathryn

2014-07-13T23:59:59.000Z

183

TA Orientation 2004 Activity 15a. How to Grade Student Laboratory Reports  

E-Print Network (OSTI)

student laboratory reports. Please keep in mind the information from Activities 17 & #18a as you go report. 2. Follow closely as we go over the grading of the example student laboratory report. 3. Mark. 2. Mark down any and all comments on the example student laboratory reports as you grade them. 3

Minnesota, University of

184

Securing Offshore Infrastructures Through a Global Alert and Graded Response System  

E-Print Network (OSTI)

1 « SARGOS » Securing Offshore Infrastructures Through a Global Alert and Graded Response System and graded response system to answer the recent but strong need for securing critical civilian offshore of their 2009 global safety program (CSOSG). 1. Introduction Offshore oil installations are critical energy

Paris-Sud XI, Université de

185

Graded Betti numbers of the path ideals of cycles and lines Ali Alilooee Sara Faridi  

E-Print Network (OSTI)

Graded Betti numbers of the path ideals of cycles and lines Ali Alilooee Sara Faridi February 19 above gives partial information on Betti numbers of path ideals. In this paper we use purely combinatorial arguments based on our results in [1] to give an explicit formula for all the graded Betti numbers

Faridi, Sara

186

Plateau Field Test of Diesel Engine Oils with Different Viscosity Grades  

Science Journals Connector (OSTI)

The degradation of SF/CD 0W/30, CD5W/30 and SF/CD 15W/40 general engine oils has been investigated by Plateau field test with STYER 91 trucks. The experimental results have shown that on the Plateau viscosity grade of the oil hardly impacts on its service ... Keywords: Plateau, field test, viscosity grade, oil, diesel engine

Su Bin; Shi Yonggang; Gong Haifeng; Xu Jinlong; Wei Wei; Mei Lin

2011-01-01T23:59:59.000Z

187

THRESHOLDING-BASED SEGMENTATION AND APPLE GRADING BY MACHINE Devrim Unay, and Bernard Gosselin  

E-Print Network (OSTI)

THRESHOLDING-BASED SEGMENTATION AND APPLE GRADING BY MACHINE VISION Devrim Unay, and Bernard.tcts.fpms.ac.be ABSTRACT In this paper, a computer vision based system is introduced to automatically grade apple fruits outperformed others with 89 % recognition. 1. INTRODUCTION Computer vision based quality sorting of apple

Dupont, Stéphane

188

Operational Model for C3 Feedstock Optimization on a  

E-Print Network (OSTI)

Chemical and refinery grade feedstocks with different prices and propylene purities. Best operationOperational Model for C3 Feedstock Optimization on a Polypropylene Production Facility Pablo A Polypropylene production facility Chemical and refinery grade feedstocks with different prices and propylene

Grossmann, Ignacio E.

189

C3 Feedstock Optimization for Multiproduct Polypropylene  

E-Print Network (OSTI)

­ March 12-13,2013 #12;Project Overview Polypropylene production facility Chemical and refinery grade feedstocks with different prices and propylene purities. Best operation will balance production rate facility Chemical and refinery grade feedstocks with different prices and propylene purities. Best

Grossmann, Ignacio E.

190

The effect of different rates and grades of fertilizers upon yield, market grade and headweight of cabbage grown on Brennan fine sandy loam during the 1947 and 1948 season  

E-Print Network (OSTI)

pleats vMeh pro- d?sod bosdsy rogar41?oe of otM nad grade& wore barsootodo All hoods wore voighid iadividaelly ead graded eeeordiag to U. 8, Staaderde of Oredee (vithmt toloraeeoe) oa ehc herooet dates, abrade 1 aad grado 2 vere aerhotoblo grades ead...

Cowley, Walter Raymond

1952-01-01T23:59:59.000Z

191

SC Beta Graded Cavity Design for a Proposed 350 MHZ Linac for Waste Transmutation and Energy Production  

E-Print Network (OSTI)

SC Beta Graded Cavity Design for a Proposed 350 MHZ Linac for Waste Transmutation and Energy Production

Barni, D; Pagani, C; Pierini, P; Visona, S; Gemme, G; Parodi, R

1998-01-01T23:59:59.000Z

192

Grade Assignments for Models Used for Calibration of Gross-Count Gamma-Ray Logging Systems (December 1983)  

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

Grade Assignments for Models Used for Calibration of Gross-Count Gamma-Ray Logging Systems (December 1983)

193

Solar grade silicon: Technology status and industrial trends  

Science Journals Connector (OSTI)

Abstract Crystalline silicon remains (all variants included) the dominant technology to manufacture solar cells. Currently (2012–2013) more than 90% of all solar cells produced are based on this vast group of technologies. The availability, the cost and the quality to the silicon feedstock is therefore a strategic issue of paramount importance for the entire photovoltaic sector. The silicon demand/supply balance has evolved from a situation of shortage with rocketing sales prices, in the years 2005–2008, to currently (2012–2013) an oversupply situation with record low price level for virgin polysilicon. Between these two extreme periods, production capacity has been multiplied by a factor of nearly 10. A better understanding of the prevailing dynamics in the polysilicon/silicon industry is needed in order for all players in the solar cell industry to make proper planning. In light of the past developments as well as the constraints imposed by a sound competition, the present article reviews the market trends for solar grade silicon including capacity, supply, demand and price. Furthermore, the article reviews the competing commercial technologies i.e. Siemens polysilicon, fluidized bed reactor/FBR polysilicon and upgraded metallurgical/UMG silicon and compares them in terms of maturity, improvement potential, product morphology, purity, applications and cost (actual vs. potential).

Gøran Bye; Bruno Ceccaroli

2014-01-01T23:59:59.000Z

194

Beneficiation and hydroretorting of low grade oil shale  

SciTech Connect

A new approach to oil recovery from low grade oil shales has been developed jointly by the Mineral Resources Institute (MRI) of The University of Alabama and the HYCRUDE Corporation. The approach is based on the HYTORT process, which utilized hydrogen gas during the retorting process to enhance oil yields from many types of oil shales. The performance of the HYTORT process is further improved by combining it with MRI's froth flotation process. Taking advantage of differences in the surface properties of the kerogen and the inorganic mineral constituents of the oil shales, the MRI process can reject up to three quarters by weight of relatively kerogen-free inorganic fractions of the oil shale before HYTORT processing. The HYTORT and MRI processes are discussed. Results of tests by each process on oil shales of low to moderate inherent kerogen content are presented. Also discussed are the results of the combined processes on an Indiana New Albany oil shale. By combining the two processes, the raw shale which yielded 12 gallons of oil per ton by Fischer Assay was upgraded by flotation to a product yielding 27 gallons of Fischer Assay oil per ton. HYTORT processing of the beneficiated product recovered 54 gallons of oil per ton, an improvement in oil yield by a factor of 4.5 over the raw shale Fischer Assay.

Tippin, R.B.; Hanna, J.; Janka, J.C.; Rex, R.C. Jr.

1985-02-01T23:59:59.000Z

195

U.S. and Russia Reaffirm Commitment to Disposing of Weapon-Grade Plutonium  

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

Reaffirm Commitment to Disposing of Weapon-Grade Reaffirm Commitment to Disposing of Weapon-Grade Plutonium U.S. and Russia Reaffirm Commitment to Disposing of Weapon-Grade Plutonium July 13, 2006 - 3:05pm Addthis WASHINGTON, DC - U.S. Energy Secretary Samuel W. Bodman and Sergey Kiriyenko, the director of Russia's Federal Atomic Energy Agency, have signed a joint statement reaffirming their commitment to dispose of 34 metric tons of excess weapon-grade plutonium by irradiation in nuclear reactors. "This statement is a clear sign of our mutual commitment to keeping dangerous nuclear material out of the hands of terrorists. We look forward to working together with the Russians to ensure that this important nonproliferation project moves forward in both Russia and the United States," Secretary Bodman said.

196

Radiochemical determination of 237Np in soil samples contaminated with weapon grade plutonium  

Science Journals Connector (OSTI)

The Palomares terrestrial ecosystem (Spain) constitutes a natural laboratory to study transuranics. This scenario is partially contaminated with weapon-grade plutonium since the burnout and fragmentation...237Np ...

M. P. Antón; A. Espinosa; A. Aragón

2006-12-01T23:59:59.000Z

197

Radiochemical determination of 237NP in soil samples contaminated with weapon grade plutonium  

Science Journals Connector (OSTI)

The Palomares terrestrial ecosystem (Spain) constitutes a natural laboratory to study transuranics. This scenario is partially contaminated with weapon-grade plutonium since the burnout and fragmentation...237Np ...

M. P. Antón; A. Espinosa; A. Aragón

2006-01-01T23:59:59.000Z

198

On a class of exact solutions of the equations of motion of a second grade fluid  

Science Journals Connector (OSTI)

By means of Fourier sine transform, the velocity field corresponding to a flow of a suddenly moved flat plate in a second grade fluid is determined. The adequate solution for the Rayleigh-Stokes problem for th...

Prof. Dr. C. Fetec?u; Prof. J. Zierep

2001-01-01T23:59:59.000Z

199

Grades 9-12: Join the BioenergizeME Infographic Challenge!  

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

The Bioenergy Technologies Office (BETO) is hosting the BioenergizeME Infographic Challenge to engage 9th–12th grade students in learning about bioenergy and educating their peers. In this...

200

The creep behaviour of ASTM A437 grade B4B steel for steam turbine applications.  

E-Print Network (OSTI)

??This study is a continuation of a project to characterise ASTM A437 Grade B4B martensitic stainless steel for use In Hitachi Canadian Industries Ltd’s (HCI)… (more)

Hamilton, Andrew Mathias

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

E-Print Network 3.0 - accordion severity grading Sample Search...  

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

without losing their ability to function. Th these findings were... , R&D, Aerospace, LED ISO 9001:2000 Registered www.mlpc.com Carbon nanotubes Field emission grade CNT Source:...

202

Residential Slab-On-Grade Heat Transfer in Hot Humid Climates  

E-Print Network (OSTI)

Heat transfer through an uninsulated slab on grade is calculated using a simple method developed by Kusuda. The seasonal and annual slab loads are graphed as a function of annual average soil temperature, Tm, for a variety of floor system...

Clark, E.; Ascolese, M.; Collins, W.

1989-01-01T23:59:59.000Z

203

Analysis Reveals Impact of Road Grade on Vehicle Energy Use (Fact Sheet)  

SciTech Connect

Findings of study indicate that, on average, road grade could be responsible for 1%-3% of fuel use in light-duty automobiles, with many individual trips impacted by as much as 40%.

Not Available

2014-04-01T23:59:59.000Z

204

The Conversion of Low-Grade Heat into Power Using Supercritical Rankine Cycles.  

E-Print Network (OSTI)

??Low-grade heat sources, here defined as below 300 ºC, are abundantly available as industrial waste heat, solar thermal, and geothermal, to name a few. However,… (more)

Chen, Huijuan

2010-01-01T23:59:59.000Z

205

Testing and Thermodynamic Analysis of Low-Grade Heat Power Generation System Using Organic Rankine Cycle  

Science Journals Connector (OSTI)

Low grade heat power generation system using Organic Rankine Cycle (ORC) was introduced in this work. ... system behaved better in thermodynamic efficiency than stream-Rankine cycle. Numerical thermodynamic model...

Wei Gu; Yiwu Weng; Guangyi Cao

2007-01-01T23:59:59.000Z

206

Fabrication of functionally graded TiC/Ti composites by Laser Engineered Net Shaping  

E-Print Network (OSTI)

engineered net shaping (LENS), with compositions changing from pure Ti to approximately 95 vol% TiC; Microstructure; TiC carbide 1. Introduction Functionally graded materials (FGMs) are a class of advanced

DuPont, John N.

207

An electrochemical system for efficiently harvesting low-grade heat energy  

E-Print Network (OSTI)

Efficient and low-cost thermal energy-harvesting systems are needed to utilize the tremendous low-grade heat sources. Although thermoelectric devices are attractive, its efficiency is limited by the relatively low ...

Lee, Seok Woo

208

Optimization of functionally graded metallic foam insulation under transient heat transfer conditions  

Science Journals Connector (OSTI)

The problem of minimizing the maximum temperature of a structure insulated by a functionally graded metal foam insulation under transient heat conduction is studied. First, the performance of insulation designed ...

H. Zhu; B.V. Sankar; R.T. Haftka…

2004-11-01T23:59:59.000Z

209

Declining Rates of High-Grade Cervical Lesions in Young Women in Connecticut, 2008–2011  

Science Journals Connector (OSTI)

...High-Grade Cervical Lesions in Young Women in Connecticut, 2008-2011 Linda M. Niccolai 1 Pamela...1 Yale School of Public Health and Connecticut Emerging Infections Program, New Haven; and 2 Connecticut Department of Public Health, Hartford...

Linda M. Niccolai; Pamela J. Julian; James I. Meek; Vanessa McBride; James L. Hadler; Lynn E. Sosa

2013-08-01T23:59:59.000Z

210

The efficacy of systematic, explicit literacy instruction in kindergarten and first grade  

E-Print Network (OSTI)

This investigation examined the extent to which teacher implemented systematic, explicit instruction affected the literacy achievement of kindergarten and first grade students. Two cohorts of students in a southwestern United States school district...

Dean, Emily Ocker

2009-05-15T23:59:59.000Z

211

An Evaluation of Early Reading First on Emergent Literacy Skills: Preschool through Middle of First Grade  

E-Print Network (OSTI)

and 129 children in the "practice as usual" contrast group. The longitudinal effect of the ERF intervention on participating students (from pre-kindergarten through the middle of first grade) was investigated via multilevel modeling. Four multilevel models...

Tani-Prado, Sophia

2010-10-12T23:59:59.000Z

212

Study of Thermo-Electro-Mechnical Coupling in Functionally Graded Metal-Ceramic Composites  

E-Print Network (OSTI)

Piezoelectric actuators have been developed in various forms ranging from discrete layered composites to functionally graded composites. These composite actuators are usually made up of differentially poled piezoelectric ceramics. This study...

Doshi, Sukanya 1988-

2012-12-10T23:59:59.000Z

213

Sodium sulfide leaching of low-grade jamesonite concentrate in production of sodium pyroantimoniate  

Science Journals Connector (OSTI)

Sodium sulfide leaching of a low-grade jamesonite concentrate in the production of sodium pyroantimoniate through the air oxidation process and the influencing factors on the leaching rate of antimony were...

Tian-zu Yang PhD; Ming-xi Jiang…

2005-06-01T23:59:59.000Z

214

Assessment of an Industrial Wet Oxidation System for Burning Waste and Low-Grade Fuels  

E-Print Network (OSTI)

"Stone & Webster Engineering Corporation, under Department of Energy sponsorship, is developing a wet oxidation system to generate steam for industrial processes by burning industrial waste materials and low-grade fuels. The program involves...

Bettinger, J.; Koppel, P.; Margulies, A.

215

Retail yields and fabrication times for beef subprimals from two grade groups  

E-Print Network (OSTI)

Davey B. Griffin (Chair of Committee) (Member) _____________________________ _____________________________ Julie F. Harlin Chris L. Skaggs (Member) (Member... (s) for fabrication of Beef Rib, Blade Meat (IMPS #109B) from different USDA quality grade groups..............................................................................................17 2 Least squares means of retail yields...

Voges, Kristin Leigh

2005-02-17T23:59:59.000Z

216

Table A1. Refiner/Reseller Motor Gasoline Prices by Grade, PAD...  

Annual Energy Outlook 2012 (EIA)

78.2 101.8 83.6 87.5 74.7 See footnotes at end of table. A1. RefinerReseller Motor Gasoline Prices by Grade, PAD District, and State, 1984-Present 452 Energy Information...

217

The Ro (S¹)-graded equivariant homotopy of THH(Fp)  

E-Print Network (OSTI)

The main result of this thesis is the computation of ... for ... These RO(S¹)-graded TR-groups are the equivariant homotopy groups naturally associated to the S¹-spectrum THH(Fp), the topological Hochschild S¹-spectrum. ...

Gerhardt, Teena Meredith

2007-01-01T23:59:59.000Z

218

Mathematical misconceptions in graphing and central tendency among sixth grade and undergraduate students  

E-Print Network (OSTI)

of the requirements for the degree of MASTER OF SCIENCE August 2002 Major Subject: Curriculum and Instruction MATHEMATICAL MISCONCEPTIONS IN GRAPHING AND CENTRAL TENDENCY AMONG SIXTH GRADE AND UNDERGRADUATE STUDENTS A Thesis by MARY ELIZABETH HAMMER... lfeldt / Head of De artment) August 2002 Major Subject: Curriculum and Instruction 111 ABSTRACT Mathematical Misconceptions in Graphing and Central Tendency Among Sixth Grade and Undergraduate Students. (August 2002) Mary Elizabeth Hammer, B. A...

Hammer, Mary Elizabeth

2002-01-01T23:59:59.000Z

219

Lax operator algebras and gradings on semi-simple Lie algebras  

E-Print Network (OSTI)

A Lax operator algebra is constructed for an arbitrary semi-simple Lie algebra over $\\mathbb C$ equipped with a $\\mathbb Z$-grading, and arbitrary compact Riemann surface with marked points. In this set-up, a treatment of almost graded structures, and classification of the central extensions of Lax operator algebras are given. A relation to the earlier approach based on the Tyurin parameters is established.

Oleg K. Sheinman

2014-06-19T23:59:59.000Z

220

Measurements of the diffusion coefficient of silver 110-m in a nuclear grade graphite  

E-Print Network (OSTI)

MEASUREMENTS OF TEE DIFFUSION COEFFICIENT OF SILVER 110-m IN A NUCLEAR GRADE. GRAPHITE A Thesis by THAD CALHOUN MCMILLAN, Jr. Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE August 1980 Major Subject: Nuclear Engineering MEASUREMENTS OF THE DIFFUSION COEFFICIENT OF SILVER 110-m IN A NUCLEAR GRADE GRAPHITE A Thesis by THAD CALHOUN MCMILLAN, Jr. Approved as to style and content by: (Chairman...

McMillan, Thad Calhoun

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

A technique for classifying and evaluating railroad-highway grade crossings  

E-Print Network (OSTI)

of the need for improvement in the railroad-highway grade crossing are pointed out. The public user and the rail carrier are delayed by the poor condition found in today's crossings and by the frequent patchwork approach to maintenance. Railroad... cease to be students themselves, and who communicate to others their love of learning. " TABLE OF CONTENTS Introduction Objective Benefits Proposed Research Procedure Progress to the Present Status Distribution of Rail-Highway Grade Crossings...

Newton, Thomas Monroe

1974-01-01T23:59:59.000Z

222

Faculty/Topics Telephone Grade Level Dr. Jean Boal 871-4773  

E-Print Network (OSTI)

Faculty/Topics Telephone Grade Level Dr. Jean Boal 871-4773 Cephalopods 7-12 Dr. Susan Di-3076 Mosquitoes 1-12 Dr. Daniel Yocom 872-3338 Mycorrhizae 7-12 Mushrooms and Fungi 1-6 Dr. Yuan Zhong 871/Topics Telephone Grade Level Dr. Alex DeCaria 871-4739 Lighning 1-12 Thunderstorms and Tornadoes 1-12 Hurricanes

Hardy, Christopher R.

223

Thermoelectric energy converter for generation of electricity from low-grade heat  

DOE Patents (OSTI)

A thermoelectric energy conversion device which includes a plurality of thermoelectric elements is described. A hot liquid is supplied to one side of each element and a cold liquid is supplied to the other side of each element. The thermoelectric generator may be utilized to produce power from low-grade heat sources such as ocean thermal gradients, solar ponds, and low-grade geothermal resources. (WHK)

Jayadev, T.S.; Benson, D.K.

1980-05-27T23:59:59.000Z

224

Potential methods of revising USDA quality and yield grade standards for mature carcass cows  

E-Print Network (OSTI)

POTENTIAL METHODS OF REVISING USDA QUALITY AND YIELD GRADE STANDARDS FOR MATURE CARCASS COWS A Thesis RODNEY ROBERT HODGSON 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 December 1991 Major Subject: Animal Science POTENTIAL METHODS OF REVISING USDA QUALITY AND YIELD GRADE STANDARDS FOR MATURE CARCASS COWS A Thesis RODNEY ROBERT HODGSON Approved as to style and content by: Jeff W...

Hodgson, Rodney Robert

2012-06-07T23:59:59.000Z

225

Functionally Graded Cathodes for Solid Oxide Fuel Cells  

SciTech Connect

This DOE SECA project focused on both experimental and theoretical understanding of oxygen reduction processes in a porous mixed-conducting cathode in a solid oxide fuel cell (SOFC). Elucidation of the detailed oxygen reduction mechanism, especially the rate-limiting step(s), is critical to the development of low-temperature SOFCs (400 C to 700 C) and to cost reduction since much less expensive materials may be used for cell components. However, cell performance at low temperatures is limited primarily by the interfacial polarization resistances, specifically by those associated with oxygen reduction at the cathode, including transport of oxygen gas through the porous cathode, the adsorption of oxygen onto the cathode surface, the reduction and dissociation of the oxygen molecule (O{sub 2}) into the oxygen ion (O{sup 2-}), and the incorporation of the oxygen ion into the electrolyte. In order to most effectively enhance the performance of the cathode at low temperatures, we must understand the mechanism and kinetics of the elementary processes at the interfaces. Under the support of this DOE SECA project, our accomplishments included: (1) Experimental determination of the rate-limiting step in the oxygen reduction mechanism at the cathode using in situ FTIR and Raman spectroscopy, including surface- and tip-enhanced Raman spectroscopy (SERS and TERS). (2) Fabrication and testing of micro-patterned cathodes to compare the relative activity of the TPB to the rest of the cathode surface. (3) Construction of a mathematical model to predict cathode performance based on different geometries and microstructures and analyze the kinetics of oxygen-reduction reactions occurring at charged mixed ionic-electronic conductors (MIECs) using two-dimensional finite volume models with ab initio calculations. (4) Fabrication of cathodes that are graded in composition and microstructure to generate large amounts of active surface area near the cathode/electrolyte interface using a novel combustion chemical vapor deposition (CCVD) technique. (5) Application of advanced quantum chemical calculations to interpret measured spectroscopic information, as well as to guide design of high efficient cathode materials.

YongMan Choi; Meilin Liu

2006-09-30T23:59:59.000Z

226

DELAYED COKING OF SOLVENT EXTRACTED COAL FOR PRODUCTION OF ANODE GRADE COKE: CHARACTERIZATION OF SOLID AND LIQUID PRODUCTS.  

E-Print Network (OSTI)

??This study investigates the feasibility of using high temperature solvent extraction of coal to produce feedstock for the production of anode grade coke through delayed… (more)

Karri, Vamsi

2011-01-01T23:59:59.000Z

227

Evaluation of Cerebral Energy Demand during Graded Hypercapnia and Validation of Optical Blood Flow Measurements against ASL fMRI  

Science Journals Connector (OSTI)

We validate optical cerebral blood flow measurements against functional MRI in a rat model during graded hypercapnia. We test the iso-metabolic assumption and demonstrate an apaprent...

Carp, Stefan; Franceschini, Maria A; Boas, David A; Kim, Young R

228

Solar Grade Silicon from Agricultural By-products  

SciTech Connect

In this project, Mayaterials developed a low cost, low energy and low temperature method of purifying rice hull ash to high purity (5-6Ns) and converting it by carbothermal reduction to solar grade quality silicon (Sipv) using a self-designed and built electric arc furnace (EAF). Outside evaluation of our process by an independent engineering firm confirms that our technology greatly lowers estimated operating expenses (OPEX) to $5/kg and capital expenses (CAPEX) to $24/kg for Sipv production, which is well below best-in-class plants using a Siemens process approach (OPEX of 14/kg and CAPEX of $87/kg, respectively). The primary limiting factor in the widespread use of photovoltaic (PV) cells is the high cost of manufacturing, compared to more traditional sources to reach 6 g Sipv/watt (with averages closer to 8+g/watt). In 2008, the spot price of Sipv rose to $450/kg. While prices have since dropped to a more reasonable $25/kg; this low price level is not sustainable, meaning the longer-term price will likely return to $35/kg. The 6-8 g Si/watt implies that the Sipv used in a module will cost $0.21-0.28/watt for the best producers (45% of the cost of a traditional solar panel), a major improvement from the cost/wafer driven by the $50/kg Si costs of early 2011, but still a major hindrance in fulfilling DOE goal of lowering the cost of solar energy below $1/watt. The solar cell industry has grown by 40% yearly for the past eight years, increasing the demand for Sipv. As such, future solar silicon price spikes are expected in the next few years. Although industry has invested billions of dollars to meet this ever-increasing demand, the technology to produce Sipv remains largely unchanged requiring the energy intensive, and chlorine dependent Siemens process or variations thereof. While huge improvements have been made, current state-of-the-art industrial plant still use 65 kWh/kg of silicon purified. Our technology offers a key distinction to other technologies as it starts one step upstream from all other Sipv production efforts. Our process starts by producing high purity SiO2/C feedstocks from which Sipv can be produced in a single, chlorine free, final EAF step. Specifically, our unique technology, and the resultant SiO2/C product can serve as high purity feedstocks to existing metallurgical silicon (Simet) producers, allowing them to generate Sipv with existing US manufacturing infrastructure, reducing the overall capital and commissioning schedule. Our low energy, low CAPEX and OPEX process purifies the silica and carbon present in rice hull ash (RHA) at low temperatures (< 200C) to produce high purity (5-6 Ns) feedstock for production of Sipv using furnaces similar to those used to produce Simet. During the course of this project we partnered with Wadham Energy LP (Wadham), who burns 220k ton of rice hulls (RH)/yr generating 200 GWh of electricity/yr and >30k ton/yr RHA. The power generation step produces much more energy (42 kWh/kg of final silicon produced) than required to purify the RHA (5 kWh/kg of Sipv, compared to 65 kWh/kg noted above. Biogenic silica offers three very important foundations for producing high purity silicon. First, wastes from silica accumulating plants, such as rice, corn, many grasses, algae and grains, contain very reactive, amorphous silica from which impurities are easily removed. Second, plants take up only a limited set of, and minimal quantities of the heavy metals present in nature, meaning fewer minerals must be removed. Third, biomass combustion generates a product with intrinsic residual carbon, mixed at nanometer length scales with the SiO2. RHA is 80-90 wt% high surface area (20 m2/g), amorphous SiO2 with some simple mineral content mixed intimately with 5-15 wt% carbon. The mineral content is easily removed by low cost, acid washes using Mayaterials IP, leading to purified rice hull ash (RHAclean) at up to 6N purity. This highly reactive silica is partially extracted from RHAclean at 200 C in an environmentally benign process to adjust SiO2:C ratios to those needed in EA

Richard M. Laine

2012-08-20T23:59:59.000Z

229

Beaubien Elementary's 8th Grade Math Club Visits Argonne | Argonne National  

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

Beaubien Elementary's 8th Grade Math Club Visits Argonne Beaubien Elementary's 8th Grade Math Club Visits Argonne May 31, 2012 Tweet EmailPrint A math club is a great way to inspire children and make math come alive, but connecting a passion for math to an exciting career can be a challenge. So Chicago Public School teacher Jason Major got a field trip idea for his eighth-grade math club. On May 18, the math club of Jean Baptiste Beaubien Elementary School in northwest Chicago visited Argonne National Laboratory, the Lemont-based U.S. Department of Energy lab, and met with scientists who explained how important math is in solving some of the world's greatest challenges. The eighth graders also explored Argonne's visualization lab, a cavernous room filled with high-tech tiled and 3D display systems that provide

230

Make the Grade -- and Save -- with ENERGY STAR® | Department of Energy  

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

Make the Grade -- and Save -- with ENERGY STAR® Make the Grade -- and Save -- with ENERGY STAR® Make the Grade -- and Save -- with ENERGY STAR® September 27, 2012 - 1:58pm Addthis If you need to replace your electronics, consider getting an ENERGY STAR product for dramatic energy savings -- as much as 90 percent savings for some products. If you need to replace your electronics, consider getting an ENERGY STAR product for dramatic energy savings -- as much as 90 percent savings for some products. Lynn Meyer Presidential Management Fellow, Office of Energy Efficiency and Renewable Energy Shop for ENERGY STAR Electronics Computers Imaging equipment (copiers, printers, fax machines, scanners) Monitors and other displays Most students have been back in school for more than a month, and many parents and students finished their back-to-school shopping awhile ago.

231

Make the Grade -- and Save -- with ENERGY STAR® | Department of Energy  

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

Make the Grade -- and Save -- with ENERGY STAR® Make the Grade -- and Save -- with ENERGY STAR® Make the Grade -- and Save -- with ENERGY STAR® September 27, 2012 - 1:58pm Addthis If you need to replace your electronics, consider getting an ENERGY STAR product for dramatic energy savings -- as much as 90 percent savings for some products. If you need to replace your electronics, consider getting an ENERGY STAR product for dramatic energy savings -- as much as 90 percent savings for some products. Lynn Meyer Presidential Management Fellow, Office of Energy Efficiency and Renewable Energy Shop for ENERGY STAR Electronics Computers Imaging equipment (copiers, printers, fax machines, scanners) Monitors and other displays Most students have been back in school for more than a month, and many parents and students finished their back-to-school shopping awhile ago.

232

Advances and challenges in ORC systems modeling for low grade thermal energy recovery  

Science Journals Connector (OSTI)

Abstract Low-grade thermal energy recovery has attained a renewed relevance, driven by the desire to improve system efficiency and reduce the carbon footprint of power generation. Various technologies have been suggested to exploit low-temperature thermal energy sources, otherwise difficult to access using conventional power generation systems. In this paper, the authors review the most recent advances and challenges for the exploitation of low grade thermal energy resources, with particular emphasis on ORC systems, based on information gathered from the technical literature. An outline of the issues related to ORC system modeling is also presented, and some guidelines drawn to develop an effective and powerful simulation tool. As a summary conclusion of the revised models, a simulation tool of an ORC system suitable for the exploitation of low grade thermal energy is introduced.

Davide Ziviani; Asfaw Beyene; Mauro Venturini

2014-01-01T23:59:59.000Z

233

Searching For An Electrical-Grade Geothermal Resource In Northern Arizona  

Open Energy Info (EERE)

Searching For An Electrical-Grade Geothermal Resource In Northern Arizona Searching For An Electrical-Grade Geothermal Resource In Northern Arizona To Help Geopower The West Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Searching For An Electrical-Grade Geothermal Resource In Northern Arizona To Help Geopower The West Details Activities (1) Areas (1) Regions (0) Abstract: The U.S Department of Energy's "Geopowering the West" initiative seeks to double the number of states (currently 4) that generate geothermal electric power over the next few years. Some states, like New Mexico and Oregon, have plentiful and conspicuous geothermal manifestations, and are thus likely to further DOE'S goal relatively easily. Other states, including Arizona, demonstrate less geothemal potential, but nevertheless

234

The Effect of Cleaning on the Grade, Staple and Price of Cotton.  

E-Print Network (OSTI)

The Effect of Cleaning on the Grade, Staple and Price of Cotton MARY ANNA GRIMES Department of Rural Home Research LIS??AT?Y A. & M. COLLEGE OF TD(AS [Blank Page in Original Bulletin] Digest The removal of all foreign matter from ginned... cotton should raise the grade, qualifying it for a higher price. The extent of the changes produced by cleaning with a Shirley analyzer was determined for 132 cottons representing 31 varieties and strains, 5 locations and 4 methods of harvesting. Two...

Grimes, Mary Anna

1950-01-01T23:59:59.000Z

235

Neutronics and safety characteristics of a 100% MOX fueled PWR using weapons grade plutonium  

SciTech Connect

Preliminary neutronics and safety studies, pertaining to the feasibility of using 100% weapons grade mixed-oxide (MOX) fuel in an advanced PWR Westinghouse design are presented in this paper. The preliminary results include information on boron concentration, power distribution, reactivity coefficients and xenon and control rode worth for the initial and the equilibrium cycle. Important safety issues related to rod ejection and steam line break accidents and shutdown margin requirements are also discussed. No significant change from the commercial design is needed to denature weapons-grade plutonium under the current safety and licensing criteria.

Biswas, D.; Rathbun, R.; Lee, Si Young [Westinghouse Savannah River Co., Aiken, SC (United States); Rosenthal, P. [Westinghouse Electric Corp., Pittsburgh, PA (United States)

1993-12-31T23:59:59.000Z

236

Cotton Leaf Grade as Influenced by Harvest Aid Regimes and Cultivar Characteristics  

E-Print Network (OSTI)

harvest aid regimes over three years at the TAES Research Farm in Burleson County, 2010-2012. zKruskal-Wallis test indicated the cotton leaf grade was not influenced by the defoliation level in any year (P = 0.05). All trendlines were found to be non...-significant. .................................................... 27 Figure 2. Leaf grade of cotton as impacted by percent leaf defoliation of different harvest aid regimes over three years located in Colorado County in 2010 and 2012, and Matagorda County in 2011. zKruskal-Wallis test indicated the cotton leaf...

Eder, Zachary Phillip

2013-08-09T23:59:59.000Z

237

All Economics minor requirements must be taken for a letter grade with a minimum grade of C-. The Economics major consists of (1) the Core, (2) History/Theory/Thought, and (3) Economics  

E-Print Network (OSTI)

All Economics minor requirements must be taken for a letter grade with a minimum grade of C-. The Economics major consists of (1) the Core, (2) History/Theory/Thought, and (3) Economics Electives. Minimum Minor Hours: 18 1. ECONOMICS CORE: All Economics minors must complete these courses. HISTORY

238

PSYCHOLOGY MAJOR -EFFECTIVE FALL 2012 Core Requirements MUST earn a grade C or better in each  

E-Print Network (OSTI)

PSYCHOLOGY MAJOR - EFFECTIVE FALL 2012 Core Requirements ­ MUST earn a grade C or better in each Areas of Study: Area 1: Basic Psychological Processes ­ Choose TWO courses Course Title Units Completed Motivation PSY 494 Cognitive Psychology PSY 496 Cognitive Science: Models of Human Psychology PSY 498

239

Surface Acoustic Waves in an Infinite Plate of Functionally Graded Materials  

E-Print Network (OSTI)

and thermal constants, to improve certain functions like thermal resistance and local strength in variousSurface Acoustic Waves in an Infinite Plate of Functionally Graded Materials Ji Wang, Lehui Zhou, and Jianke Du Piezoelectric Device Laboratory, Mechanics and Materials Science Research Center, School

Wang, Ji

240

A NOVEL TECHNIQUE TO GENERATE SHARP CRACKS IN METALLIC/CERAMIC FUNCTIONALLY GRADED  

E-Print Network (OSTI)

materials with high fracture toughness and elevated temperature resistance. Ideally, the ceramic side of the FGM provides thermal and corrosion resistance while the metallic side gives the necessary strengthA NOVEL TECHNIQUE TO GENERATE SHARP CRACKS IN METALLIC/CERAMIC FUNCTIONALLY GRADED MATERIALS

Paulino, Glaucio H.

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

Dense Layered Molybdenum DisilicideSilicon Carbide Functionally Graded Composites Formed by Field-Activated Synthesis  

E-Print Network (OSTI)

thermal cracking during formation of the layered functionally graded materials. I. Introduction was the development of thermal barrier materials for use in the United States­Japan National Space Plane.1 FGMs have ceramic that exhibits excel- lent high-temperature oxidation resistance. Above 800°C, in air, MoSi2 forms

Paulino, Glaucio H.

242

Seismic Rayleigh waves on an exponentially graded, orthotropic half-space  

Science Journals Connector (OSTI)

...made of orthotropic shales if alpha0 and another...wave propagation in an anisotropic, inhomogeneous Earth...than in the homogeneous shales, and it is less localized...isotropic half-space. An anisotropic material belongs to...Exponentially graded orthotropic shales: variations with the...

2007-01-01T23:59:59.000Z

243

indirect study, coal was oxidatively de-graded with sodium dichromate and the  

E-Print Network (OSTI)

Cleaning Technology (Noyes Data Corporation, Park Ridge, N.J., 1981). 10. Z. Hussain, E. Umbach, D. Aindirect study, coal was oxidatively de- graded with sodium dichromate and the esterified products- vestigators concluded (17, p. 380) that "thiophene derivatives must be indige- nous to coal." The direct XANES

Howat, Ian M.

244

CATEGORIES OF JORDAN STRUCTURES AND GRADED LIE D. M. CAVENY AND O. N. SMIRNOV  

E-Print Network (OSTI)

CATEGORIES OF JORDAN STRUCTURES AND GRADED LIE ALGEBRAS D. M. CAVENY AND O. N. SMIRNOV Abstract to the category of Jordan pairs via a functorial modification of the TKK construction. For instance, we prove that L = L-1 L0 L1 can be constructed from a Jordan pair if and only if L0 = [L-1, L1] and the second

245

Flow and heat transfer of a third grade fluid past an exponentially stretching sheet with  

E-Print Network (OSTI)

Flow and heat transfer of a third grade fluid past an exponentially stretching sheet with partial-Newtonian boundary layer flow and heat transfer over an exponentially stretch- ing sheet with partial slip boundary. The heat transfer analysis has been carried out for two heating processes, namely (i) with prescribed sur

Paris-Sud XI, Université de

246

Color grading of beef fat by using computer vision and support vector machine  

Science Journals Connector (OSTI)

Machine vision and support vector machine (SVM) were used to determine color scores of beef fat. One hundred and twenty-three of beef rib eye steaks were selected to sensory evaluation and image processing. After fat color score was assigned to each ... Keywords: Beef fat, Color grading, Image processing, SVM

K. Chen; X. Sun; Ch. Qin; X. Tang

2010-01-01T23:59:59.000Z

247

Dielectric properties of MgO-doped compositionally graded multilayer barium strontium titanate films  

E-Print Network (OSTI)

Dielectric properties of MgO-doped compositionally graded multilayer barium strontium titanate shifters and filters operat- ing in the microwave regime.1­4 Ferroelectrics FEs such as barium strontium in monolithic BST films especially with low strontium content, although the addition of MgO causes a reduction

Alpay, S. Pamir

248

Microwave dielectric properties of graded barium strontium titanate films M. W. Cole,1,a  

E-Print Network (OSTI)

Microwave dielectric properties of graded barium strontium titanate films M. W. Cole,1,a C. V strontium titanate BaxSr1-xTiO3 or BST multilayers 5 mol % MgO doped and undoped were prepared via metallo, delay lines, filters, and phase shifters for steerable antennas.1­3 Barium strontium titanate BaxSr1-x

Alpay, S. Pamir

249

Dielectric tunability of graded barium strontium titanate multilayers: Effect of thermal strains  

E-Print Network (OSTI)

Dielectric tunability of graded barium strontium titanate multilayers: Effect of thermal strains M TEC of a multilayered barium strontium titanate Ba1-ySryTiO3 BST ferroelectric heterostructure such as barium strontium titanate Ba1-ySryTiO3 BST have emerged as leading candidates for such applications due

Alpay, S. Pamir

250

A New Cost-Benefit Methodology for Highway-Railway Grade Crossing Safety  

E-Print Network (OSTI)

visible at the time of the crash) ­ Injury and Fatality cost; ­ Highway vehicle damage; ­ Rail prior to impact and was not injured. Engineer advised after striking vehicle fumes from the radiatorA New Cost-Benefit Methodology for Highway-Railway Grade Crossing Safety Programs GLX-2014 Ali

Illinois at Urbana-Champaign, University of

251

Graded multiplicities in the Macdonald kernel, Part I John R. Stembridge  

E-Print Network (OSTI)

Graded multiplicities in the Macdonald kernel, Part I John R. Stembridge Department of Mathematics notation B. Motivation C. Outline 2. Degenerate Macdonald polynomials A. The decomposition matrix B G has a Macdonald kernel associated to it. This kernel is a bigraded virtual G-character depending

Stembridge, John

252

PERGAMON Carbon 39 (2001) 369373 Effect of carbon fiber grade on the electrical behavior of  

E-Print Network (OSTI)

PERGAMON Carbon 39 (2001) 369­373 Effect of carbon fiber grade on the electrical behavior of carbon 2000 Abstract Electrical conduction in cement reinforced by short carbon fibers below the percolation is decreased by increasing the fiber crystallinity, but is increased by using intercalated fibers. The carbon

Chung, Deborah D.L.

253

E-Print Network 3.0 - aisi 409m grade Sample Search Results  

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

based grades... , Coatings 0 10,000 20,000 30,000 40,000 50,000 60,000 AISI D2 + CVD TiC Carmo + Nitr + PVD CrN AISI D2... Vanadis 4E AISI D2 + PVD AlTiN AISI M2 AISI M4 ......

254

Seismic Rayleigh waves on an exponentially graded, orthotropic half-space  

Science Journals Connector (OSTI)

...Society 8 February 2007 research-article Seismic Rayleigh waves on an exponentially graded...Efforts at modelling the propagation of seismic waves in half-spaces with continuously...inhomogeneous media|Rayleigh waves|seismic anisotropy|seismic modelling|surface...

2007-01-01T23:59:59.000Z

255

Dyadic Collaborative Problem Solving on Engineering Tasks in a First Grade submitted by  

E-Print Network (OSTI)

is important, the creativity to develop a tool for teaching engineering, and the persistence to lobby for itsDyadic Collaborative Problem Solving on Engineering Tasks in a First Grade Classroom A thesis, Ed.D. #12;ii Abstract Current research in engineering education often focuses on students in high

256

Grading of Vegetative Cuttings Using Computer Vision Sanjiv Singh & Mike Montemerlo  

E-Print Network (OSTI)

that are propagated in large quantities Subjected to a controlled regimen of lighting and nutrition, the cuttings take results in improper lighting of some of the cuttings and can lead to stunted growth. More importantly grading is prone to error. A greenhouse that ships millions of flowering plants a year, finds it difficult

Singh, Sanjiv

257

Neural predictors of individual differences in response to math tutoring in primary-grade school children  

Science Journals Connector (OSTI)

...why some children in primary-grade school gain more from remedial one-to-one tutoring than others. In conclusion, our study provides strong evidence that individual differences...Schumacher EH Goebel R D’Esposito M ( 2008 ) Functional MRI investigation of verbal selection mechanisms in lateral prefrontal cortex...

Kaustubh Supekar; Anna G. Swigart; Caitlin Tenison; Dietsje D. Jolles; Miriam Rosenberg-Lee; Lynn Fuchs; Vinod Menon

2013-01-01T23:59:59.000Z

258

Beating the maximum cooling limit with graded thermoelectric materials Zhixi Bian and Ali Shakouria  

E-Print Network (OSTI)

.1063/1.2396895 The maximum cooling temperature is one of the perfor- mance parameters for a thermoelectric module. ExcludingBeating the maximum cooling limit with graded thermoelectric materials Zhixi Bian and Ali Shakouria cooling of a single element thermoelectric material cannot be improved by changing its geometry.3

259

Just in Time Webinars: Session 1 – Managing Your Investment-Grade Audit  

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

This webinar discusses how to manage an investment-grade audit (IGA) by establishing roles and responsibilities of interdependent team members to achieve a high quality IGA, and using the synergy of contracting and technical team interaction to scope your project requirements and guide proposal development.

260

ARTIFICIAL NEURAL NETWORK-BASED SEGMENTATION AND APPLE GRADING BY MACHINE VISION  

E-Print Network (OSTI)

ARTIFICIAL NEURAL NETWORK-BASED SEGMENTATION AND APPLE GRADING BY MACHINE VISION Devrim Unay In this paper, a computer vision based system is introduced to automatically sort apple fruits. An artificial. INTRODUCTION Computer vision based quality sorting of apple fruits is nec- essary for increasing the speed

Dupont, Stéphane

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

An Effective Dispersant for Oil Spills Based on Food-Grade Amphiphiles  

E-Print Network (OSTI)

examined the ability of food-grade amphiphiles to disperse (emulsify) crude oil in seawater. Our studies to coalescence for a much longer time. The smaller size and stability of crude oil droplets are believed-4 In the case of a large oil spill such as the Deepwater Horizon event in the Gulf of Mexico in 2010, over 2

Rubloff, Gary W.

262

Low-Grade Coals: A Review of Some Prospective Upgrading Technologies  

Science Journals Connector (OSTI)

These are commonly lignites or sub-bituminous coals. ... The earliest upgrading of high-moisture lignite involved drying and manufacturing of briquettes. ... It can therefore be concluded that, because reserves for low-grade coals are quite plentiful, it is important to intensify efforts that will make these coals usable in an acceptable manner in terms of energy efficiency and environmental protection. ...

Hassan Katalambula; Rajender Gupta

2009-06-15T23:59:59.000Z

263

Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District...  

Gasoline and Diesel Fuel Update (EIA)

68.6 62.0 70.7 92.7 90.7 81.5 72.8 - 78.0 See footnotes at end of table. 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 56 Energy Information...

264

Table 31. Motor Gasoline Prices by Grade, Sales Type, PAD District...  

Gasoline and Diesel Fuel Update (EIA)

68.9 62.6 71.6 92.3 89.9 82.6 72.7 - 78.2 See footnotes at end of table. 31. Motor Gasoline Prices by Grade, Sales Type, PAD District, and State 56 Energy Information...

265

Effects on milk protein yield of graded levels of lysine infused into the duodenum of dairy cows fed diets  

E-Print Network (OSTI)

Effects on milk protein yield of graded levels of lysine infused into the duodenum of dairy cows). In order to determine ly- sine requirements, graded levels of lysine (0, 15, 30, 45 g/d) were infused period (2 wk) they received a duo- denal infusion of one dose of lysine + 11 g of methionine and enough

Paris-Sud XI, Université de

266

Journal of Crystal Growth 287 (2006) 402407 Transition metals in photovoltaic-grade ingot-cast multicrystalline  

E-Print Network (OSTI)

Journal of Crystal Growth 287 (2006) 402­407 Transition metals in photovoltaic-grade ingot silicon (mc-Si) ingot casting for cost-effective solar cell wafer production. Highly sensitive to the invited talk ``Transition metals in photovoltaic-grade multicrystalline silicon'' by A.A. Istratov, T

267

The versatility of graded acoustic measures in classification of predation threats by the tufted titmouse Baeolophus bicolor  

E-Print Network (OSTI)

The versatility of graded acoustic measures in classification of predation threats by the tufted titmouse Baeolophus bicolor: exploring a mixed framework for threat communication Kathryn E. Sieving-based' alarms encode graded or ranked threat-levels by varying the production patterns of the same call types

Sieving, Kathryn E.

268

Positron emission tomography-based boron neutron capture therapy using boronophenylalanine for high-grade gliomas: part I.  

Science Journals Connector (OSTI)

...for high-grade gliomas: part I Determination of tumor boron-10 (10B) levels is required for accurate neutron dosimetry...high-grade gliomas: part I. | Determination of tumor boron-10 (10B) levels is required for accurate neutron dosimetry...

Y Imahori; S Ueda; Y Ohmori; K Sakae; T Kusuki; T Kobayashi; M Takagaki; K Ono; T Ido; R Fujii

1998-08-01T23:59:59.000Z

269

Ductile fracture toughness of modified A 302 Grade B Plate materials, data analysis. Volume 1  

SciTech Connect

The goal of this work was to develop ductile fracture toughness data in the form of J-R curves for modified A302 grade B plate materials typical of those used in reactor pressure vessels. A previous experimental study on one heat of A302 grade B plate showed decreasing J-R curves with increased specimen thickness. This characteristic has not been observed in tests made on recent production materials of A533 grade B and A508 class 2 pressure vessel steels. It was unknown if the departure from norm for the material was a generic characteristic for all heats of A302 grade B steels or unique to that particular plate. Seven heats of modified A302 grade B steel and one heat of vintage A533 grade B steel were tested for chemical content, tensile properties, Charpy transition temperature curves, drop-weight nil-ductility transition (NDT) temperature, and J-R curves. Tensile tests were made in the three principal orientations and at four temperatures, ranging from room temperature to 550F. Charpy V-notch transition temperature curves were obtained in longitudinal, transverse, and short transverse orientations. J-R curves were made using four specimen sizes (1/2T, 1T, 2T, and 4T). The fracture mechanics-based evaluation method covered three test orientations and three test temperatures (80, 400, and 550F). However, the coverage of these variables was contingent upon the amount of material provided. Drop-weight NDT temperature was determined for the T-L orientation only. None of the heats of modified A302 grade B showed size effects of any consequence on the J-R curve behavior. Crack orientation effects were present, but none were severe enough to be reported as atypical. A test temperature increase from 180 to 550F produced the usual loss in J-R curve fracture toughness. Generic J-R curves and curve fits were generated to represent each heat of material. This volume deals with the evaluation of data and the discussion of technical findings. 8 refs., 18 figs., 8 tabs.

McCabe, D.E.; Manneschmidt, E.T.; Swain, R.L.

1997-01-01T23:59:59.000Z

270

DOE-STD-1153-2002; A Graded Approach for Evaluating Radiation Doses to Aquatic and Terrestrial Biota  

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

2 2 DETAILED GUIDANCE MODULE 2: DETAILED GUIDANCE DOE-STD-1153-2002 INTENTIONALLY BLANK DOE-STD-1153-2002 M2-1 1 The Graded Approach, Ecological Risk Assessment, and Guidance on Their Implementation in Evaluating Radiation Doses to Biota The graded approach was made available to DOE field and program elements and to external users for a trial use period beginning in July 2000 as an interim version of this technical standard. The purpose of the trial period was to give users an opportunity to become familiar with and implement the graded approach at their sites, and to have an opportunity to provide suggestions and lessons learned to the BDAC regarding any refinements and associated guidance that needed to be incorporated into the graded approach prior to finalizing the technical standard. During this trial period the graded approach received strong interest and requests from

271

Operational Model forOperational Model forOperational Model forOperational Model for C3 Feedstock Optimization on aC3 Feedstock Optimization on app  

E-Print Network (OSTI)

Optimization on aC3 Feedstock Optimization on app Polypropylene Production FacilityPolypropylene Production for Advanced Process Decision-making Enterprise-Wide Optimization (EWO) Meeting ­ March 13-14, 2012 #12;Project ~95% propylene Refinery PolypropylenePropylene (91%) Grade (RG) Reactor effluent Distillation ~79

Grossmann, Ignacio E.

272

High quality metamorphic graded buffers with lattice-constants intermediate to GaAs an InP for device applications  

E-Print Network (OSTI)

We have investigated the use of a continuous, linear grading scheme for compositionally-graded metamorphic InxGal-As buffers on GaAs, which can be used as virtual substrates for optical emitters operating at wavelengths > ...

Lee, Kenneth Eng Kian

2009-01-01T23:59:59.000Z

273

Replaces DOE F 3530.1 5. HOW LONG IN PRESENT POSITION GRADE  

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

50.2 50.2 (07-95) Replaces DOE F 3530.1 5. HOW LONG IN PRESENT POSITION GRADE 6. DATE NEXT REGULAR STEP INCREASE IS DUE: 7. LIST ANY AWARDS OR QUALITY INCREASES RECEIVED IN LAST 5 YEARS (Date and kind of award) ATTACH A COMPLETED SF-52, "REQUEST FOR PERSONNEL ACTION," AND A COPY OF THE EMPLOYEE'S CURRENT RATING OF RECORD AS DOCUMENTATION THAT PERFORMANCE HAS MET ALL THE REQUIREMENTS FOR AN OUTSTANDING RATING. NAME AND TITLE OF NOMINATING OFFICIAL (Employee's immediate supervisor) 1. NAME OF NOMINEE 3. ORGANIZATION LOCATION OF POSITION 2. POSITION TITLE, GRADE AND STEP 4. RECOMMENDATION COVERS SERVICE FROM (DATE): TO: SIGNATURE DATE NAME AND TITLE OF REVIEWING OFFICIAL (If required by organization)

274

Forming high efficiency silicon solar cells using density-graded anti-reflection surfaces  

DOE Patents (OSTI)

A method (50) is provided for processing a graded-density AR silicon surface (14) to provide effective surface passivation. The method (50) includes positioning a substrate or wafer (12) with a silicon surface (14) in a reaction or processing chamber (42). The silicon surface (14) has been processed (52) to be an AR surface with a density gradient or region of black silicon. The method (50) continues with heating (54) the chamber (42) to a high temperature for both doping and surface passivation. The method (50) includes forming (58), with a dopant-containing precursor in contact with the silicon surface (14) of the substrate (12), an emitter junction (16) proximate to the silicon surface (14) by doping the substrate (12). The method (50) further includes, while the chamber is maintained at the high or raised temperature, forming (62) a passivation layer (19) on the graded-density silicon anti-reflection surface (14).

Yuan, Hao-Chih; Branz, Howard M.; Page, Matthew R.

2014-09-09T23:59:59.000Z

275

On the motion of a second grade fluid due to longitudinal and torsional oscillations of a cylinder: A numerical study  

SciTech Connect

Unsteady problems involving the second grade fluids have received considerable attention in recent years. The present study is an attempt to look at the motion of an oscillating rod in a second grade fluid. Specifically, we solve numerically for the flow of a second grade fluid surrounding a solid cylindrical rod that is suddenly set into longitudinal and torsional motion. The equations are made dimensionless. The results are presented for the shear stresses at the wall, related to the drag force; these are physical quantities of interest, especially in oil-drilling applications.

Massoudi, Mehrdad; Tran, P.X.

2008-09-15T23:59:59.000Z

276

presentee pour obtenir le grade de Docteur de l'Ecole Nationale Superieure Des Telecommunications  

E-Print Network (OSTI)

Th`ese pr´esent´ee pour obtenir le grade de Docteur de l'Ecole Nationale Sup´erieure Des T´el´ecommunications Institut National des T´el´ecommunications (INT) Evry - France #12;Dissertation presented in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY of Ecole Nationale Sup´erieure Des T´el´ecommunications

Paris-Sud XI, Université de

277

COOPERATIVE ACTIVITIES IN A SECOND GRADE CLASSROOM: DO GIRLS COOPERATE BETTER?  

E-Print Network (OSTI)

. What does it mean to say that girls are more "cooperative'?" In an early explication of this part of the different cultures model, Lever ( 1976)made a distinction between play and games. Play Was defined as a COOperative interaction that had no specitic...••.•'- ..... »: - ...•~ ......': "'-I.~ -... ..-J __-. -.,.A... ....... '.:", .&..... _ ~. l j I I COOPERATIVE ACTIVITIES IN A SECOND GRADE CLASSROOM: DO GIRLS COOPERATE BETTER?* Nancy Gilliland Steven Grineski Amy Middleton Moorhead State...

Gilliland, Nancy

1996-04-01T23:59:59.000Z

278

Method for making graded I-III-VI.sub.2 semiconductors and solar cell obtained thereby  

DOE Patents (OSTI)

Improved cell photovoltaic conversion efficiencies are obtained by the simultaneous elemental reactive evaporation process of Mickelsen and Chen for making semiconductors by closer control of the evaporation rates and substrate temperature during formation of the near contact, bulk, and near junction regions of a graded I-III-VI.sub.2, thin film, semiconductor, such as CuInSe.sub.2 /(Zn,Cd)S or another I-III-VI.sub.2 /II-VI heterojunction.

Devaney, Walter E. (Seattle, WA)

1987-08-04T23:59:59.000Z

279

PFP Public Automatic Exchange (PAX) Commercial Grade Item (CGI) Critical Characteristics  

SciTech Connect

This document specifies the critical characteristics for Commercial Grade Items (CGI) procured for use within the safety envelope of PFP's PAX system as required by HNF-PRO-268 and HNF-PRO-1819. These are the minimum specifications that the equipment must meet in order to properly perform its safety function. There may be several manufacturers or models that meet the critical characteristics for any one item.

WHITE, W.F.

2000-04-04T23:59:59.000Z

280

Broadly defining lasing wavelengths in single bandgap-graded semiconductor nanowires  

E-Print Network (OSTI)

optoelectronic devices. KEYWORDS: Cadmium sulfide selenide, bandgap-graded nanowire, lasing, defining wavelength, mode selectivity Semiconductor NW lasers have recently attracted a great deal of interest, since they have large numbers of potential... applications in future photonic and optoelectronic devices.1-5 To push NW lasers closer to practical applications, some important challenges, for instance, wavelength variability, must be addressed. To date, a number of binary semiconductor NW lasers...

Yang, Zongyin; Wang, Delong; Meng, Chao; Wu, Zhemin; Wang, Yong; Ma, Yaoguang; Dai, Lun; Liu, Xiaowei; Hasan, Tawfique; Liu, Xu; Yang, Qing

2014-05-05T23:59:59.000Z

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

Nutritional evaluation of tortillas and chips form quality protein maize and food grade maize  

E-Print Network (OSTI)

: Lo W. (Chairman of m' . . r'i J orman . So . aug (mes)ber J Karen Kubena (member ) . C. A. n (H ad of Depar ment) May 1985 ABSTRACT Nutritional Evaluation of Tortillas and Chips From Quality Protein Maize and Food Grade Maize. (May 1985... processing steps include cooking the maize in lime water, steeping (nixtamal ), washing, grinding (mass ), forming the mass into tortilla shape and then baking (Martinez-Herrera and Lachance, 1979). Optimization of the cooking procedure for making maize...

Sproule, Anastasia Marie

1985-01-01T23:59:59.000Z

282

On the 3D steady flow of a second grade fluid past an obstacle  

E-Print Network (OSTI)

We study steady flow of a second grade fluid past an obstacle in three space dimensions. We prove existence of solution in weighted Lebesgue spaces with anisotropic weights and thus existence of the wake region behind the obstacle. We use properties of the fundamental Oseen tensor together with results achieved in \\cite{Koch} and properties of solutions to steady transport equation to get up to arbitrarily small $\\ep$ the same decay as the Oseen fundamental solution.

Pawe? Konieczny; Ond?ej Kreml

2010-10-29T23:59:59.000Z

283

Method and apparatus for determination of mechanical properties of functionally-graded materials  

DOE Patents (OSTI)

Techniques for the determination of mechanical properties of homogenous or functionally-graded materials from indentation testing are presented. The technique is applicable to indentation on the nano-scale through the macro-scale including the geological scale. The technique involves creating a predictive load/depth relationship for a sample, providing an experimental load/depth relationship, comparing the experimental data to the predictive data, and determining a physical characteristic from the comparison.

Giannakopoulos, Antonios E. (Somerville, MA); Suresh, Subra (Wellesley, MA)

1999-01-01T23:59:59.000Z

284

Inelastic Thermal Neutron Scattering Cross Sections for Reactor-grade Graphite  

Science Journals Connector (OSTI)

Abstract Current calculations of the inelastic thermal neutron scattering cross sections of graphite are based on representing the material using ideal single crystal models. However, the density of reactor-grade graphite is usually in the range of 1.5 g/cm3 to approximately 1.8 g/cm3, while ideal graphite is characterized by a density of nearly 2.25 g/cm3. This difference in density is manifested as a significant fraction of porosity in the structure of reactor-grade graphite. To account for the porosity effect on the cross sections, classical molecular dynamics (MD) techniques were employed to simulate graphite structures with porosity concentrations of 10% and 30%, which are taken to be representative of reactor-grade graphite. The phonon density of states for the porous systems were generated as the power spectrum of the MD velocity autocorrelation functions. The analysis revealed that for porous graphite the phonon density of states exhibit a rise in the lower frequency region that is relevant to neutron thermalization. Using the generated phonon density of states, the inelastic thermal neutron scattering cross sections were calculated using the NJOY code system. While marked discrepancies exist between measurements and calculations based on ideal graphite models, favorable agreement is found between the calculations based on the porous graphite models and measured data.

A.I. Hawari; V.H. Gillete

2014-01-01T23:59:59.000Z

285

Solvent eects on the charge storage ability in polypyrrole T.F. Otero, I. Cantero, H. Grande  

E-Print Network (OSTI)

(Jansen) was distilled under vacuum before use. Methanol (Lab Scan, HPLC grade), ethanol ab- solute (Panreac, for analysis), propylene carbonate (Merck, >99% content), water (obtained from Milli Q Reagent

Otero, Toribio Fernández

286

Selection Process for Third and Fourth Grade African American Gifted and Talented: A Case Study in One Urban School District  

E-Print Network (OSTI)

The purpose of this study was to examine teacher perceptions of third and fourth grade African American students who might be selected for the gifted and talented program. It is the first study concerning teachers’ perceptions of African American...

Brazile, Ruth Delories

2011-10-21T23:59:59.000Z

287

Application of Geothermal Energy to Mineral Processing: Cyanide Heap-Leaching of Low-Grade Gold Ore  

Science Journals Connector (OSTI)

The advent of cyanide heap-leaching for low-grade gold and silver ores has resulted in an unprecedented increase in the output of mines throughout the world. This simple and economical process entails open-pit mi...

Thomas Flynn; Dennis Trexler…

1995-01-01T23:59:59.000Z

288

Electron Beam Source Molecular Beam Epitaxy of AlxGal?xAs Graded Band Gap Device Structures  

Science Journals Connector (OSTI)

A new method has been developed for the growth of graded band-gap AlxGal?xAs alloys by molecular beam epitaxy which is based upon electron. beam evaporation of the Group III elements ... . The large dynamic respo...

R. J. Malik; A. F. J. Levi; B. F. Levine…

1989-01-01T23:59:59.000Z

289

Graded zooming  

DOE Patents (OSTI)

A system for increasing the resolution in the far field resolution of video or still frame images, while maintaining full coverage in the near field. The system includes a camera connected to a computer. The computer applies a specific zooming scale factor to each of line of pixels and continuously increases the scale factor of the line of pixels from the bottom to the top to capture the scene in the near field, yet maintain resolution in the scene in the far field.

Coffland, Douglas R. (Livermore, CA)

2006-04-25T23:59:59.000Z

290

Some genetic and environmental (sic) factors affecting weaning weight and weaning of grade in Angus cattle in South Texas  

E-Print Network (OSTI)

SOME GENETIC AND ENVIROMENTAL FACTORS AFFECTING WEANING WEIGHT AND WEANING OF GRADE IN ANGUS CATTLE IN SOUTH TEXAS A Thesis by Paige Allan Stasney Submitted to the Graduate College of the Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE December 1971 Major Subject: Animal Science SOME GENETIC AND ENVIROMENTAL FACTORS AFFECTING WEANING WEIGHT AND WEANING OF GRADE IN ANGUS CATTLE IN SOUTH TEXAS A Thesis by Paige Allan Stasney Approved...

Stasney, Paige Allan

2012-06-07T23:59:59.000Z

291

Role of yield grade and carcass weight on the cutability of lamb carcasses at multiple trim levels and fabrication styles  

E-Print Network (OSTI)

ROLE OF YIELD GRADE AND CARCASS WEIGHT ON THE CUTABILITY OF LAMB CARCASSES AT MULTIPLE TRIM LEVELS AND FABRICATION STYLES A Thesis by RANDAL PAL GARRETT Submitted to the Office of Graduate Studies of Texas ARM University in partial... PAL GARRETT Approved as to syle and content by: . R. Cross (Co-Chairman of Committee) effrey W. Savell (Co-Chairman of Committee) John D. Williams (Member) G. C. Smith (Head of Department) December 1988 Role of Yield Grade and Carcass Weight...

Garrett, Randal Pal

1988-01-01T23:59:59.000Z

292

Feasibility study for combining cooling and high grade energy production in a solar greenhouse  

Science Journals Connector (OSTI)

Throughout the world greenhouse horticulture is expanding and intensifying. The expansion is driven by the much higher production levels that are achieved in greenhouses compared to open fields. This provides increased income for farmers and a positive effect on rural development. Intensification is driven by the demand for better control of the production process resulting in higher yield but, more importantly, higher product quality. As a result products can meet the standards of the fast expanding consumer market for high quality fresh products, driven by the booming new economies. However greenhouse horticulture also faces major problems. In northern countries, with cold winter climates, greenhouses have to be heated for optimal growing conditions so energy supply is an important issue. In the southern countries with the combination of high global radiation and high outdoor temperatures during summer, cooling of greenhouses is needed during this period. Solutions for energy supply in winter and cooling in summer can be combined applying seasonal storage of excess solar energy and exploiting this for heating in winter. The advantage of this system is cheaper cooling, and energy savings of about 35% compared to heating by furnace. The disadvantage is that the excess solar energy is converted to low grade thermal energy which is stored at a temperature level of about 18 °C. This can only be exploited for heating in winter by a heat pump, driven by high grade energy such as electricity. Here, the feasibility of a novel approach is investigated of a greenhouse design combining cooling with energy supply in such a way that excess solar energy is directly converted to high grade electric energy. A prototype greenhouse according to this design is under construction. In a following paper the experimental results of this prototype greenhouse will be presented.

P.J. Sonneveld; G.L.A.M. Swinkels; G.P.A. Bot; G. Flamand

2010-01-01T23:59:59.000Z

293

Characterization of ferroresonant modes in HV substation with CB grading capacitors  

Science Journals Connector (OSTI)

This paper reports a ferroresonant experience involving inductive voltage transformers (VT's) in a 400 kV substation equipped with circuit breaker grading capacitors. Field measurements are presented and compared with ATP/EMTP simulation results, showing very good agreement. A parametric analysis has been performed to investigate the effect of the substation capacitance on the occurrence of ferroresonance. Fundamental frequency and sub-harmonic ferroresonant modes have been identified and compiled in a bifurcation diagram. The methodology presented can be used to create risk maps of avoidable switching operations or substation configurations.

M. Val Escudero; I. Dudurych; M.A. Redfern

2007-01-01T23:59:59.000Z

294

Methods of Ginning in Relation to the Grade and Staple of Cotton.  

E-Print Network (OSTI)

, Texas, to determine the effect which different speeds of saws, densities of breast-roll, and the use of the standard air-line cleaner have on the grade and staple of cotton of varying lengths. The results of these experiments show, in general, that a... saw speed of 760 revolutions per minute, used together with the loose breast-roll and the standard air-line cleaner, provide the most favorable conditions for ginning cotton on the air- blast type of gin used. The use of the standard air...

Killough, D. T. (David Thornton); McNess, George Thomas

1930-01-01T23:59:59.000Z

295

presentee pour obtenir le grade de Docteur de l'Ecole Polytechnique  

E-Print Network (OSTI)

´ehension de l'endommagement ductile, est examin´ee tant d'un point de vue num´erique que th´eorique, dans leTH`ESE pr´esent´ee pour obtenir le grade de Docteur de l'´Ecole Polytechnique Sp´ecialit´e : M´ecanique et Mat´eriaux par Fran¸cois Willot Contribution `a l'´etude th´eorique de la localisation plastique

Boyer, Edmond

296

A REAL TIME COAL CONTENT ORE GRADE (C2OG) SENSOR  

SciTech Connect

This tenth quarterly technical report discusses the progress made on a machine vision technique for ore grading based on hyperspectral imaging. A graduate student at Montana Tech has successfully defended her thesis related to this project. Arrangements with Stillwater Mining Company to deploy a machine vision system in their core room have been completed. Designs for they system that will be installed next quarter have been drawn and parts are being machined. Presentations on the spectral imaging system developed during this effort have been made to Stillwater Mining Company and at a remote sensing symposium at Montana State University.

Rand Swanson

2004-01-23T23:59:59.000Z

297

BLENDING PROBLEM A refinery blends four petroleum components into three grades of  

E-Print Network (OSTI)

BLENDING PROBLEM A refinery blends four petroleum components into three grades of gasoline/day $/barrel #1 5,000 $9.00 #2 2,400 7.00 #3 4,000 12.00 #4 1,500 6.00 Blending formulas and selling price 4,000 x4R + x4P + x4L 1,500 #12;blending: (1) x1R / (x1R + x2R + x3R + x4R) .40 or x1R .40(x1R

Shier, Douglas R.

298

Laser Cladding of Ni-WC Layers with Graded WC Content  

Science Journals Connector (OSTI)

Abstract Coating techniques using powder as added material can be adapted for the manufacture of composition gradients if a mixing unit is included in the powder feed system. As for the laser cladding technology, FGM can be obtained if mixing parameters are changed along the process. This work deals with the development of NiCrBSi layers with WC graded composition. The purpose is to obtain longitudinal compositional gradients within distances of millimeters along a laser scan. To accomplish this task, the capabilities and time delays in the feeding system are identified and analyzed. Preliminar tests on single cladding beads show results in reasonable agreement with expectations.

J.M. Amado; J. Montero; M.J. Tobar; A. Yáñez

2014-01-01T23:59:59.000Z

299

Graded approach for initiating event selection in a facility hazard analysis  

SciTech Connect

This paper describes a methodology for selecting initiating events or event scenarios for the hazard analysis of a new Department of Energy (DOE) facility at the Nevada Test Site for nuclear explosive operations called the Device Assembly Facility (DAF). The selection process is a very important first step in conducting the hazard analysis for the facility, which in turn may feed into a quantitative risk analysis. A comprehensive risk analysis is dependent on the identification and inclusion of a complete set of initiating events in the analysis model. A systematic and logical method of grading or screening all the potential initiating events satisfies the needs for completeness within the bounds of efficiency and practicality. By applying the graded approach to the selection of the initiating events, the task and hazard analysis was able to focus its attention on only those events having the potential to develop into credible accident scenarios. Resources were concentrated into the understanding of those scenarios, and assuring that adequate positive measures are in place to control the risk associated with them.

Majumdar, K.; Altenbach, T.

1998-04-01T23:59:59.000Z

300

In-situ Phase transformation study in fine grained heat affected zone of Grade 91 steels  

SciTech Connect

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

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

ENHANCING CORONAL STRUCTURES WITH THE FOURIER NORMALIZING-RADIAL-GRADED FILTER  

SciTech Connect

Images of the corona have a high dynamic range which is excellent for quantitative photometric analysis. To understand the processes governing the solar corona, it is essential to have information about the absolute brightness as well as the underlying structure. However, due to the steep radial gradient of brightness in the images, and to the fact that structures closer to the solar disk have higher contrast than structures further from the disk, human vision cannot view the intricate structure of the corona in such images. The recently developed normalizing-radial-graded filter (NRGF) is an effective way for revealing the coronal structure. In this work, we present a more adaptive filter inspired by the NRGF, which we call the Fourier normalizing-radial-graded filter (FNRGF). It approximates the local average and the local standard deviation by a finite Fourier series. This method enables the enhancement of finer details, especially in regions of lower contrast. We also show how the influence of additive noise is reduced by a modification to the FNRGF. To illustrate the power of the method, the FNRGF is applied to images of emission from coronal forbidden lines observed during the 2010 July 11 total solar eclipse. It is also successfully applied to space-based observations of the low corona in the extreme ultraviolet and to white light coronagraph observations, thus demonstrating the validity of the FNRGF as a new tool that will help the interpretation of the information embedded in most types of coronal images.

Druckmuellerova, Hana [Institute of Mathematics, Faculty of Mechanical Engineering, Brno University of Technology, Technicka 2, 616 69 Brno (Czech Republic); Morgan, Huw; Habbal, Shadia R., E-mail: ydruck00@stud.fme.vutbr.cz, E-mail: hmorgan@ifa.hawaii.edu, E-mail: shadia@ifa.hawaii.edu [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96 822 (United States)

2011-08-20T23:59:59.000Z

302

AP Theory III: Cone-like Graded SUSY, Dynamic Dark Energy and the YM Millenium Problem  

E-Print Network (OSTI)

Artin Presentation Theory, (AP Theory), is a new, direct infusion, via pure braid theory, of discrete group theory, (i.e., symmetry in its purest form), into the theory of {\\it smooth} 4-manifolds, (i.e.,$(3+1)$-Quantum Gravity in its purest topological form), thus exhibiting the most basic, rigorous, universal, model-free intrinsic {\\it gauge-gravity} duality in a non-infinitesimal, cone-like graded, as holographic as possible, model-independent, non-perturbative, background-independent, parameter-free manner. {\\it In AP Theory even smooth topology change becomes gauge-theoretic, setting the stage for a rigorous smooth topological $(3+1)$-QFT of Dynamic Dark Energy.} In this theory, the rigid $\\infty$ of the dimension of classical Hilbert space is substituted by the dynamic $\\infty$ of the $\\infty$ generation at each stage of a cone-like graded subgroup of topology-changing transitions/interactions. As a corollary, the Cosmological Constant problem and the YM Millenium Mass Gap problem, two of the most perpl...

Winkelnkemper, H E

2010-01-01T23:59:59.000Z

303

Exfoliation of Graphite Oxide in Propylene Carbonate and Thermal  

E-Print Network (OSTI)

disper- sions in organic solvents is also highly desir- able and may further broaden the scope organic solvents by diluting the colloidal suspension of RG-O platelets in DMF/H2O (9:1) with solvents as a "green" route to suspensions of RG-O.23 Direct thermal treatment at elevated tem- peratures provides

304

Zinc-catalyzed copolymerization of carbon dioxide and propylene oxide  

E-Print Network (OSTI)

dioxide has recently been paid attention in the field of extraction, separation, and reaction medium, its aptitude for both a reaction solvent and a reactant was examined in zinc glutarate-catalyzed reactions. As a result, it was proved that supercritical...

Katsurao, Takumi

1994-01-01T23:59:59.000Z

305

The catalytic oxidation of propylene: investigation of catalyst activity.  

E-Print Network (OSTI)

- thur oxidation resulted in the formation oi' dioxymsthylperoxides acetalde- hydes formic aoids carbon monoxide, carbon dioxide~ hydrogen and water, &t temperatures above 500 degrees Centigrade the polymer1sation of eth- ylene became significant... that water vapor exerted a catalytio effeot on the oxidation of ethylene, while carbon dioxide showed no aooelerating effeot. Davis (ll) observed that water vapor possessed a oatalytio ei'- feet on ths oxidation of olefins. Thompson and Hinshslwood (SS...

Woodham, John Frank

1953-01-01T23:59:59.000Z

306

AN INVESTIGATION OF THE DEGRADATION OF PROPYLENE CARBONATE BY CHLORINE  

E-Print Network (OSTI)

water and then thoroughly dried before use. chamber.. During electrolysis,electrolysis using This leads us to suspect that the extent of degradation is a strong function of the amount of water

Yu, Suen-Man G.

2012-01-01T23:59:59.000Z

307

Regional Production Economics for Ethylene and Propylene Derivatives  

E-Print Network (OSTI)

~og~dms to develop domestic petrochemical capaci ty. [n those ~egions wi th abundant. low cost feedstocks. the competltive advantage ~eems obvious. However. other regions such a~ South korea "nd Taiwan. have equally aggressive p~ograms. This pape~ quantifies... from the 12th National Industrial Energy Technology Conference, Houston, TX, June 19-20, 1990 TABLE 1 40B9 REGIONAL FEEDSTOCK PRICES (US DOLLARS PER "EYRIC TON) BRAZIL NESTERN CANADA CHINA INDONESIA JAPAN SAUDI ARABIA SOUTH KOREA TAl NAN US...

McCormack, G.; Pavone, T.

308

NETL: NETL Announces 2011 Triple E Seminar for Teachers Grades K-6  

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

Educational Initiatives Triple E Seminars NETL Announces 2011 Triple E Seminar for Teachers Grades K-6 The National Energy Technology Laboratory (NETL) and the Spectroscopy Society of Pittsburgh (SSP) are pleased to announce the nineteenth Triple "E" Seminar on Thursday, January 20th & Friday, January 21st, 2011. The seminar will be held at NETL and is offered free of charge to all participants. The seminar proceedings, science enrichment materials, and refreshments will be provided. Seminar attendees will receive Act 48 credits. Please fill out the registration form [PDF-100KB] electronically and email it to: christy.pecyna@ib.netl.doe.gov. The deadline for receipt of all registration forms is January 10, 2011. Space is limited and seminar participants are selected on a first-come, first served basis so please register promptly. All accepted participants will receive a confirmation email of their registration along with an agenda and directions.

309

Standard test methods for chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade boron carbide  

E-Print Network (OSTI)

1.1 These test methods cover procedures for the chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade boron carbide powder and pellets to determine compliance with specifications. 1.2 The analytical procedures appear in the following order: Sections Total Carbon by Combustion and Gravimetry 7-17 Total Boron by Titrimetry 18-28 Isotopic Composition by Mass Spectrometry 29-38 Chloride and Fluoride Separation by Pyrohydrolysis 39-45 Chloride by Constant-Current Coulometry 46-54 Fluoride by Ion-Selective Electrode 55-63 Water by Constant-Voltage Coulometry 64-72 Impurities by Spectrochemical Analysis 73-81 Soluble Boron by Titrimetry 82-95 Soluble Carbon by a Manometric Measurement 96-105 Metallic Impurities by a Direct Reader Spectrometric Method 106-114

American Society for Testing and Materials. Philadelphia

2004-01-01T23:59:59.000Z

310

Modeling the role of bacteria in leaching of low-grade ores  

SciTech Connect

A robustious structural model is developed to describe the role of bacteria in the leaching process of low-grade ores under conditions controlled by intraparticle diffusion. The main impetus behind developing this model is to provide an insight into such systems, together with a suitable framework for interpreting experimental data. The model is derived in detail with respect to reaction chemistry and the role of bacteria in catalyzing these reactions, specifically the synergism of chemistry, physics and biology in determining the overall behavior of the system. The model is used to simulate the atmospheric oxidation of iron disulfide contained in porous solids in the presence of Thiobacillus ferrooxidans (T. ferrooxidans). The experimental data are predicted well by the model, which demonstrates its applicability and supports the view that the rate of intraparticle diffusion is the controlling mechanism for this system.

Batarseh, K.I.; Stiller, A.H. (West Virginia Univ., Morgantown, WV (United States). Dept. of Chemical Engineering)

1994-10-01T23:59:59.000Z

311

Changes to the TN Middle Grades Science Curriculum According to NGSS  

E-Print Network (OSTI)

The Framework for K-12 Science Education (July 2011) developed by the National Resource Council (NRC) draws on current scientific research and the ways students learn science effectively. This laid the foundation for Next Generation Science Standards (NGSS) released in Spring 2013. Tennessee was one of the 26 lead state partners to provide leadership to the standards writing team and to provide guidance as states deliberate on the adoption and implementation of the NGSS. We propose that the transition from current State science standards to NGSS demonstrates a extensive consensus on what all students should know and be able to do at specific K-12 grade levels and what topics can be postponed or excluded on the premise of developmental readiness. In order to facilitate this work, one of the STEM Fellows, Larry Bowman (author), created a series of 18 posters showing correlations between the current Tennessee Science Education standards (Huffman, 2009) and NGSS (Achieve, 2013). This article specifically addresse...

Bowman,, Larry L

2014-01-01T23:59:59.000Z

312

Extrusion of Aluminum Tubes with Axially Graded Wall Thickness and Mechanical Characterization  

Science Journals Connector (OSTI)

Abstract In this study the indirect extrusion of seamless aluminum tubes with variable wall thickness was investigated. Therefore, an axially moveable stepped mandrel was applied. Investigations revealed that wall thickness transitions can either be graded over the tube length or very sharp. The microstructures in thin-walled and thick-walled tube sections were investigated. The local variation of the extrusion ratio and with that the tube wall thickness, product velocity and product temperature during the process lead to significantly different local microstructures at TB=400 °C. At TB=500 °C the microstructure was homogeneously recrystallized with similar grain size in all different tube sections. Furthermore, the mechanical tube properties were characterized by three point bending tests.

M. Negendank; S. Müller; W. Reimers

2014-01-01T23:59:59.000Z

313

Low-grade geothermal energy conversion by organic Rankine cycle turbine generator  

SciTech Connect

This paper reports results of a demonstration project which helped determine the feasibility of converting low-grade thermal energy in 49/sup 0/C water into electrical energy via an organic Rankine cycle 2500 watt (electrical) turbine-generator. The geothermal source which supplied the water is located in a rural Alaskan village. The primary reasons an organic Rankine cycle turbine-generator was investigated as a possible source of electric power in rural Alaska are: high cost of operating diesel-electric units and their poor long-term reliability when high-quality maintenance is unavailable; and the extremely high level of long-term reliability reportedly attained by commercially available organic Rankine cycle turbines. The important contribution made by this project is data provided on the thermal and electrical operating characteristics of an experimental organic Rankine cycle turbine-generator operating at a uniquely low vaporizer temperature.

Zarling, J.P.; Aspnes, J.D.

1983-08-01T23:59:59.000Z

314

Functional reliability analysis of Safety Grade Decay Heat Removal System of Indian 500 MWe PFBR  

Science Journals Connector (OSTI)

Passive systems are increasingly deployed in nuclear industry with an objective of increasing reliability and safety of operations with reduced cost. Methods for assessing the reliability of thermal–hydraulic passive systems, that is systems with moving working fluid, address the issues in natural buoyancy-driven flow that could result in a failure to meet the design safety limits under accident scenarios. This is referred as design functional reliability. This paper presents the results of functional reliability analysis carried out for the passive Safety Grade Decay Heat Removal System (SGDHRS) of Indian Prototype Fast Breeder Reactor (PFBR). The analysis is carried out based on the overall approach reported in the Reliability Methods for Passive System (RMPS, European Commission) project. Functional failure probability is calculated using Monte-Carlo method and also with method of moments.

T. Sajith Mathews; M. Ramakrishnan; U. Parthasarathy; A. John Arul; C. Senthil Kumar

2008-01-01T23:59:59.000Z

315

Mechanical Characteristics of Submerged Arc Weldment in API Gas Pipeline Steel of Grade X65  

SciTech Connect

The mechanical properties of submerged arc weldment (SAW) in gas transportation pipeline steel of grade API X65 (65 ksi yield strength) were investigated. This steel is produced by thermo mechanical control rolled (TMC), and is largely used in Iran gas piping systems and networks. The results from laboratory study on three different regions; i.e. base metal (BM), fusion zone (FZ) and heat affected zone (HAZ) were used to compare weldment mechanical characteristics with those specified by API 5L (revision 2004) standard code. Different laboratory experiments were conducted on test specimens taken from 48 inch outside diameter and 14.3 mm wall thickness gas pipeline. The test results showed a gradient of microstructure and Vickers hardness data from the centerline of FZ towards the unaffected MB. Similarly, lower Charpy absorbed energy (compared to BM) was observed in the FZ impact specimens. Despite this, the API specifications were fulfilled in three tested zones, ensuring pipeline structural integrity under working conditions.

Hashemi, S. H. [Department of Mechanical Engineering, University of Birjand, POBOX 97175-376, Birjand (Iran, Islamic Republic of); Mohammadyani, D. [Materials and Energy Research Center (MERC) POBOX 14155-4777, Tehran (Iran, Islamic Republic of)

2011-01-17T23:59:59.000Z

316

Boundary layer flow and heat transfer analysis of a second-grade fluid  

SciTech Connect

Boundary layer flow and heat transfer analysis of a homogeneous, incompressible, non-Newtonian fluid of grade two at a stagnation point is presented. The flow is assumed to be steady and laminar. A power-law representation is assumed for the velocity distribution and wall temperature variation. The governing equations are solved using an iterative central difference approximation method in a non-uniform grid domain. This analysis show the effect of non-Newtonian nature of the fluid and the effect of suction/injection on the velocity profile. The effect of non-Newtonian nature of the fluid on the heat transfer coefficient at the wall for different values of Prandtl number and wall-temperature variation is also presented. (VC)

Massoudi, M. [USDOE Pittsburgh Energy Technology Center, PA (United States); Ramezan, M. [Burns and Roe Services Corp., Pittsburgh, PA (United States)

1992-04-01T23:59:59.000Z

317

AP Theory III: Cone-like Graded SUSY, Dynamic Dark Energy and the YM Millenium Problem  

E-Print Network (OSTI)

Artin Presentation Theory, (AP Theory), is a new, direct infusion, via pure braid theory, of discrete group theory, (i.e., symmetry in its purest form), into the theory of {\\it smooth} 4-manifolds, (i.e.,$(3+1)$-Quantum Gravity in its purest topological form), thus exhibiting the most basic, rigorous, universal, model-free intrinsic {\\it gauge-gravity} duality in a non-infinitesimal, cone-like graded, as holographic as possible, model-independent, non-perturbative, background-independent, parameter-free manner. {\\it In AP Theory even smooth topology change becomes gauge-theoretic, setting the stage for a rigorous smooth topological $(3+1)$-QFT of Dynamic Dark Energy.} In this theory, the rigid $\\infty$ of the dimension of classical Hilbert space is substituted by the dynamic $\\infty$ of the $\\infty$ generation at each stage of a cone-like graded subgroup of topology-changing transitions/interactions. As a corollary, the Cosmological Constant problem and the YM Millenium Mass Gap problem, two of the most perplexing main problems of modern physics, become rigorously, intimately mathematically related, by having the same qualitative {\\it dynamical} roots. Ultimately our main point is meta-mathematical, as far as modern physics is concerned: due to the discrete group-theoretic conceptual simplicity of the theory, with its group-theoretic 'Planckian membrane/discreteness' starting point, {\\it the fact that it is not just a mere mathematical model,} and all its properties above, any other {\\it mathematically rigorous} approach has to built on AP Theory and be topologically absorbed and enveloped by it.

H. E. Winkelnkemper

2010-03-26T23:59:59.000Z

318

Low-grade coals: a review of some prospective upgrading technologies  

SciTech Connect

There is a growing need of using low-grade coals because of higher quest for power generation. In the present carbon-constrained environment, there is a need of upgrading these coals in terms of moisture, ash, and/or other trace elements. The current paper reviews technologies used mainly categorized as drying for reducing moisture and cleaning the coal for reducing mineral content of coal and related harmful constituents, such as sulfur and mercury. The earliest upgrading of high-moisture lignite involved drying and manufacturing of briquettes. Drying technologies consist of both evaporative and non-evaporative (dewatering) types. The conventional coal cleaning used density separation in water medium. However, with water being a very important resource, conservation of water is pushing toward the development of dry cleaning of coal. There are also highly advanced coal-cleaning technologies that produce ultra-clean coals and produce coals with less than 0.1% of ash. The paper discusses some of the promising upgrading technologies aimed at improving these coals in terms of their moisture, ash, and other pollutant components. It also attempts to present the current status of the technologies in terms of development toward commercialization and highlights on problems encountered. It is obvious that still the upgrading goal has not been realized adequately. It can therefore be concluded that, because reserves for low-grade coals are quite plentiful, it is important to intensify efforts that will make these coals usable in an acceptable manner in terms of energy efficiency and environmental protection. 68 refs., 7 figs.

Hassan Katalambula; Rajender Gupta [University of Alberta, Edmonton, AB (Canada). Department of Chemical and Materials Engineering

2009-07-15T23:59:59.000Z

319

Reliability analysis of safety grade decay heat removal system of Indian prototype fast breeder reactor  

Science Journals Connector (OSTI)

The 500 MW Indian pool type Prototype Fast Breeder Reactor (PFBR), is provided with two independent and diverse Decay Heat Removal (DHR) systems viz., Operating Grade Decay Heat Removal System (OGDHRS) and Safety Grade Decay Heat Removal System (SGDHRS). OGDHRS utilizes the secondary sodium loops and Steam–Water System with special decay heat removal condensers for DHR function. The unreliability of this system is of the order of 0.1–0.01. The safety requirements of the present generation of fast reactors are very high, and specifically for DHR function the failure frequency should be less than ?1E-7/ry. Therefore, a passive SGDHR system using four completely independent thermo-siphon loops in natural convection mode is provided to ensure adequate core cooling for all Design Basis Events. The very high reliability requirement for DHR function is achieved mainly with the help of SGDHRS. This paper presents the reliability analysis of SGDHR system. Analysis is performed by Fault Tree method using ‘CRAFT’ software developed at Indira Gandhi Centre for Atomic Research. This software has special features for compact representation and CCF analysis of high redundancy safety systems encountered in nuclear reactors. Common Cause Failures (CCF) are evaluated by ? factor method. The reliability target for SGDHRS arrived from DHR reliability requirement and the ultimate number of demands per year (7/y) on SGDHRS is that the failure frequency should be ?1.4E-8/de. Since it is found from the analysis that the unreliability of SGDHRS with identical loops is 5.2E-6/de and dominated by leak rates of components like AHX, DHX and sodium dump and isolation valves, options with diversity measures in important components were studied. The failure probability of SGDHRS for a design consisting of 2 types of diverse loops (Diverse AHX, DHX and sodium dump and isolation valves) is 2.1E-8/de, which practically meets the reliability requirement.

A. John Arul; C. Senthil Kumar; S. Athmalingam; Om Pal Singh; K. Suryaprakasa Rao

2006-01-01T23:59:59.000Z

320

Importance of the Return Air Opening to Degree of Turbulence in a I-Grade Clean Operating Room  

E-Print Network (OSTI)

In this paper, a high Reynold K-etwo equation model has been used. The range of return air openings that can be used has been induced by numerical simulation to influence the return air opening and degree of turbulence in an I-Grade clean operating...

Cheng, S.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

Novel Parameter Predicting Grade 2 Rectal Bleeding After Iodine-125 Prostate Brachytherapy Combined With External Beam Radiation Therapy  

SciTech Connect

Purpose: To propose a novel parameter predicting rectal bleeding on the basis of generalized equivalent uniform doses (gEUD) after {sup 125}I prostate brachytherapy combined with external beam radiation therapy and to assess the predictive value of this parameter. Methods and Materials: To account for differences among radiation treatment modalities and fractionation schedules, rectal dose–volume histograms (DVHs) of 369 patients with localized prostate cancer undergoing combined therapy retrieved from corresponding treatment planning systems were converted to equivalent dose-based DVHs. The gEUDs for the rectum were calculated from these converted DVHs. The total gEUD (gEUD{sub sum}) was determined by a summation of the brachytherapy and external-beam radiation therapy components. Results: Thirty-eight patients (10.3%) developed grade 2+ rectal bleeding. The grade 2+ rectal bleeding rate increased as the gEUD{sub sum} increased: 2.0% (2 of 102 patients) for <70 Gy, 10.3% (15 of 145 patients) for 70-80 Gy, 15.8% (12 of 76 patients) for 80-90 Gy, and 19.6% (9 of 46 patients) for >90 Gy (P=.002). Multivariate analysis identified age (P=.024) and gEUD{sub sum} (P=.000) as risk factors for grade 2+ rectal bleeding. Conclusions: Our results demonstrate gEUD to be a potential predictive factor for grade 2+ late rectal bleeding after combined therapy for prostate cancer.

Shiraishi, Yutaka, E-mail: shiraishi@rad.med.keio.ac.jp [Department of Radiology, Keio University School of Medicine, Tokyo (Japan); Hanada, Takashi; Ohashi, Toshio [Department of Radiology, Keio University School of Medicine, Tokyo (Japan); Yorozu, Atsunori; Toya, Kazuhito [Department of Radiology, National Hospital Organization Tokyo Medical Center, Tokyo (Japan); Saito, Shiro [Department of Urology, National Hospital Organization Tokyo Medical Center, Tokyo (Japan); Shigematsu, Naoyuki [Department of Radiology, Keio University School of Medicine, Tokyo (Japan)

2013-09-01T23:59:59.000Z

322

Materials Science and Engineering A252 (1998) 117132 Optimization of 316 stainless steel/alumina functionally graded  

E-Print Network (OSTI)

. Introduction Due to differences of thermal and mechanical prop- erties in ceramics and metals, residual stresses develop in regions near the ceramic/metal interfaces during fabrication and under thermal/alumina functionally graded material for reduction of damage induced by thermal residual stresses M. Grujicic *, H

Grujicic, Mica

323

Effective thermal conductivity of two-phase functionally graded particulate H. M. Yin, G. H. Paulino,a  

E-Print Network (OSTI)

, a continuous trade-off of fracture toughness and high thermal conductivity of metals is made with ceramic of the ceramic portions of FGMs. The effective thermal properties in the gradation direction are es- sentialEffective thermal conductivity of two-phase functionally graded particulate composites H. M. Yin, G

Paulino, Glaucio H.

324

Eigen-vibrations of Plates made of Functionally Graded H. Altenbach1 and V. A. Eremeyev2  

E-Print Network (OSTI)

or ceramic matrix with hollow par- ticles called microballoons (see, e.g., Gupta and Ricci (2006); El Hadek Functionally graded materials (FGM) are composite materials where the composi- tion or the microstructure of a ceramic material) and the tough metallic base material increases in most cases the life time

Boyer, Edmond

325

Evaluation of an On-Line Ash Analysis System for Low-Grade and Inhomogeneous Greek Lignite  

Science Journals Connector (OSTI)

The possibility of using commercial on-line analysis systems for monitoring the ash content of low-grade lignites was investigated by carrying out numerous bench- and pilot-scale trials in the mines of Public Power Corporation SA, Greece. ... The remaining lignite reserves that are suitable for electricity generation are 3.2 billion tonnes (as of 12/31/2005). ...

Konstantinos V. Kavouridis; Francis F. Pavloudakis

2007-06-07T23:59:59.000Z

326

Analysis of out-of-plane displacement and stress eld in a piezocomposite plate with functionally graded microstructure  

E-Print Network (OSTI)

a piezoelectric actuator where the electrical resistivity was graded through the plate thickness leading theory (CLT) to account for piezoelectric coupling terms under applied electric ®eld was developed. CLT±Euler bending. Zhou and Tiersten (1994) used a variational method of elementary ¯exure and extension

Taya, Minoru

327

Department of Industrial Engineering Spring 2010 Materials Handling for Oilseed Press and Requirements for Pressing Food Grade Oil  

E-Print Network (OSTI)

and Requirements for Pressing Food Grade Oil Overview Penn State Farm Operations has an expeller press for producing meal and oil from various seeds. The oil from the press is currently being used as biodiesel that needed to be replaced every two hours. The oil is worth two dollars per gallon as fuel, but if it can

Demirel, Melik C.

328

A Critical Examination of Texas Mathematics Achievement in Grades Three through Eight by Mathematical Objective across Race/Ethnicity, Gender, and Socioeconomic Status  

E-Print Network (OSTI)

A CRITICAL EXAMINATION OF TEXAS MATHEMATICS ACHIEVEMENT IN GRADES THREE THROUGH EIGHT BY MATHEMATICAL OBJECTIVE ACROSS RACE/ETHNICITY, GENDER, AND SOCIOECONOMIC STATUS A Dissertation by BRANDON LEROY FOX Submitted... Examination of Texas Mathematics Achievement in Grades Three through Eight by Mathematical Objective across Race/Ethnicity, Gender, and Socioeconomic Status Copyright 2011 Brandon Leroy Fox A CRITICAL EXAMINATION OF TEXAS MATHEMATICS ACHIEVEMENT...

Fox, Brandon

2012-02-14T23:59:59.000Z

329

A Publication of the Haskins Literacy Initiative Volume 1, Number 1 Summer 2007 ore than half of 4th graders in Connecticut read below grade level,  

E-Print Network (OSTI)

of 4th graders in Connecticut read below grade level, whatever their race, means or gender, and economically. In Connecticut, forecasts for future prison construction are based on Grade 3 reading failure is being delivered in a growing number of schools in Connecticut--with promising results. Understanding how

330

Assessment and reduction of proliferation risk of reactor-grade plutonium regarding construction of ‘fizzle bombs’ by terrorists  

Science Journals Connector (OSTI)

Abstract The approximately 23.7 wt% 240Pu in reactor-grade plutonium denatures the 239Pu to the extent that it cannot fuel high yield nuclear weapons. 240Pu has a high spontaneous fission rate, which increases the spontaneous neutron flux within the fuel. When such a nuclear weapon is triggered, these neutrons cause the nuclear fission chain reaction to pre-detonate which blows the imploding fuel shell apart before the designed level of compression and reactivity could be attained, thereby greatly reducing the average energy yield of such “fizzle” bombs. Therefore reactor-grade plutonium is normally viewed as highly proliferation resistant. In this article the literature on the proliferation resistance of reactor-grade plutonium and on the mechanism and effect of fizzle bombs is reviewed in order to test this view. It is shown that even very low yield fizzle bombs, exploded in urban areas, would still cause serious blast damage as well as radioactive contamination. Combined with the high levels of induced terror, fizzle bombs might thus be attractive psychological weapons for terrorists. Therefore reactor-grade plutonium may not be sufficiently proliferation resistant against nuclear terrorism. However, denaturisation with more than 9% 238Pu produces high levels of decay heat which will melt or explode the high explosives around uncooled implosion type weapons, rendering them useless. Unfortunately, reactor-grade Pu contains only 2.7% 238Pu and is thus not sufficiently proliferation resistant in this respect. It is also shown that the associated neptunium poses a substantial proliferation risk. In the present study strong improvement of the proliferation resistance was demonstrated by simulation of incineration of reactor-grade plutonium in the 400 MWth Pebble Bed Modular Reactor Demonstration Power Plant. Results for modified fuel cycles, aimed at transmutating 237Np to 238Pu are also reported. However, these modifications increased the disloaded heavy metal mass, thereby substantially increasing the radiotoxicity of the spent fuel. Therefore this intervention is not recommended. 237NP should thus rather be incinerated it in fast reactors, light-water reactors or CANDU reactors.

Dawid E. Serfontein; Eben J. Mulder; Frederik Reitsma

2014-01-01T23:59:59.000Z

331

Precipitation of impurities in 9-32-0 grade fluid fertilizers  

SciTech Connect

For several years TVA has been studying production of 9-32-0 ammonium polyphosphate suspension produced from ammoniated merchant-grade wet-process orthophosphoric acid. Suspensions containing polyphosphate have an advantage over those that contain only orthophosphate in that they can be stored satisfactorily at much lower temperature. However, the introduction of polyphosphate (pyrophosphate anion) complicates the precipitation of impurities and has yielded inconsistent storage characteristics in 9-32-0 fluid fertilizers. Fluorine also has been shown to affect suspension fertilizer properties. The viscosity of 13-38-0 orthophosphate suspension fertilizers is affected by the atomic ratios F:(Al + Fe + Mg). Addition of fluorine prevents sludges and precipitates in ammonium polyphosphate fertilizer solutions - the proper amount of fluorine is related to the amount of each of the metallic impurities present and also to the fraction of the phosphate present as pyrophosphate. Incorporation of polyphosphate or fluorine or both has been shown to have positive effects on ammoniated wet-process phosphoric acid (WPPA), but they do not report the solubility relationships of the cation impurities (Fe, Al, Mg, and Ca) with respect to the anion constituents (PO/sub 4/, P/sub 2/O/sub 7/, and F). Therefore, a factorial study was developed to determine the solubility relationships of the precipitated metal impurities encountered in 9-32-0 fluid fertilizers. 10 refs., 1 fig., 20 tabs.

Dillard, E.F.; Scheib, R.M.; Greenwell, B.E.

1986-01-01T23:59:59.000Z

332

Performance evaluation of an Organic Rankine Cycle (ORC) for power applications from low grade heat sources  

Science Journals Connector (OSTI)

Abstract In this paper the performance of an Organic Rankine Cycle (ORC) module, which was designed and built for a specific power application, is experimentally characterized. The ORC tested satisfies the main specifications for an efficient power system, highlighting a volumetric expander with large built-in volume ratio. For tests development, a monitored test bench has been used and adapted to the planned test procedure, which consisted of varying the thermal power input for different condensing conditions. Thereby, 10 steady state points are achieved and analyzed according to thermal power input, gross and net electrical powers, electrical cycle efficiencies and expander effectiveness. The results show that the ORC performances are improved for higher thermal oil temperatures, capturing more thermal power, producing more electricity and achieving better cycle efficiencies. The maximum gross electrical efficiency obtained is 12.32%, for a heat source temperature about 155 °C and a direct dissipation to the ambient. Moreover, the expander reaches an electrical isentropic effectiveness about 65% for an optimum pressure ratio around 7, being a suitable system for power applications from low grade heat sources.

Bernardo Peris; Joaquín Navarro-Esbrí; Francisco Molés; Roberto Collado; Adrián Mota-Babiloni

2014-01-01T23:59:59.000Z

333

Optimization of Micro Metal Injection Molding By Using Grey Relational Grade  

SciTech Connect

Micro metal injection molding ({mu}MIM) which is a variant of MIM process is a promising method towards near net-shape of metallic micro components of complex geometry. In this paper, {mu}MIM is applied to produce 316L stainless steel micro components. Due to highly stringent characteristic of {mu}MIM properties, the study has been emphasized on optimization of process parameter where Taguchi method associated with Grey Relational Analysis (GRA) will be implemented as it represents novel approach towards investigation of multiple performance characteristics. Basic idea of GRA is to find a grey relational grade (GRG) which can be used for the optimization conversion from multi objectives case which are density and strength to a single objective case. After considering the form 'the larger the better', results show that the injection time(D) is the most significant followed by injection pressure(A), holding time(E), mold temperature(C) and injection temperature(B). Analysis of variance (ANOVA) is also employed to strengthen the significant of each parameter involved in this study.

Ibrahim, M. H. I. [Dept. Of Mechanical Engineering, Universiti Tun Hussein Onn Malaysia (UTHM), 86400 Parit Raja, Batu Pahat, Johor (Malaysia); Precision Process Research Group, Dept. of Mechanical and Materials Engineering, Faculty of Engineering, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor (Malaysia); Muhamad, N.; Sulong, A. B.; Nor, N. H. M.; Harun, M. R.; Murtadhahadi [Precision Process Research Group, Dept. of Mechanical and Materials Engineering, Faculty of Engineering, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor (Malaysia); Jamaludin, K. R. [UTM Razak School of Engineering and Advanced Technology, UTM International Campus, 54100 Jalan Semarak, Kuala Lumpur (Malaysia)

2011-01-17T23:59:59.000Z

334

450 mm dual frequency capacitively coupled plasma sources: Conventional, graded, and segmented electrodes  

SciTech Connect

Wafer diameters for microelectronics fabrication will soon transition from 300 to 450 mm at a time when excitation frequencies for capacitively coupled plasmas (CCPs) are increasing to 200 MHz or higher. Already for 300 mm tools, there is evidence that wave behavior (i.e., propagation, constructive, and destructive interference) affects the uniformity of processing. The increase in diameter to 450 mm is likely to exacerbate these effects, perhaps requiring nontraditional tool designs. This is particularly important in dual frequency (DF) CCP tools in which there are potential interactions between frequencies. In this paper, results from a two-dimensional computational investigation of Ar plasma properties in a 450 mm DF-CCP reactor, incorporating a full-wave solution of Maxwell's equations, are discussed. As in 300 mm DF-CCP reactors, the electron density collapses toward the center of the reactor with increasing high frequency (HF), however, with more pronounced finite wavelength effects. Graded conductivity electrodes with multilayer of dielectrics are computationally demonstrated as a possible means to suppress wave effects thereby increasing plasma uniformity. Segmentation of the HF electrode also improves the plasma uniformity by making the electrical distance between the feeds and the sheath edges as uniform as possible.

Yang Yang [Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011 (United States); Kushner, Mark J. [Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, Michigan 48109-2122 (United States)

2010-12-01T23:59:59.000Z

335

Commercial utilization of weapon grade plutonium as TRISO fuel in conventional CANDU reactors  

Science Journals Connector (OSTI)

Large quantities of weapon grade (WG) plutonium have been accumulated in the nuclear warheads. Plutonium and heavy water moderator can give a good combination with respect to neutron economy. TRISO type fuel can withstand very high fuel burn up levels. The paper investigates the prospects of utilization of TRISO fuel made of WG-plutonium in CANDU reactors. Three different fuel compositions have been investigated: (1): 90% ThC + 10% PuC, (2): 70% ThC + 30% PuC and (3): 50% ThC + 50% PuC. The temporal variation of the criticality k? and the burn-up values of the reactor have been calculated by full power operation up to 17 years. Calculated startup criticalities for these fuel modes are k?,0 = 1.6403, 1.7228 and 1.7662, respectively. Attainable burn up values and reactor operation times without new fuel charge will be 94 700, 265 000 and 425 000 MW.D/MT and along with continuous operation periods of ?3.5, 10 and 17 years, respectively, for the corresponding modes. These high burn ups would reduce fuel fabrication costs and nuclear waste mass for final disposal per unit energy drastically.

Sümer ?ahin; Hac? Mehmet ?ahin; Adem Ac?r

2012-01-01T23:59:59.000Z

336

Three-Dimensional Reconstruction and Microstructure Modeling of Porosity-Graded Cathode Using Focused Ion Beam and Homogenization Techniques  

SciTech Connect

In this study, microstructure of a porosity-graded lanthanum strontium manganite (LSM) cathode of solid oxide fuel cells (SOFCs) has been characterized using focused ion beam (FIB) and scanning electron microscopy(SEM) combined with image processing. Two-point correlation functions of the two-dimensional (2D) images taken along the direction of porosity gradient are used to reconstruct a three-dimensional (3D) microstructure. The effective elastic modulus of the two-phase porosity-graded cathode is predicted using strong contrast (SC) and composite inclusion (CI) homogenization techniques. The effectiveness of the two methods in predicting the effective elastic properties of the porositygraded LSM cathode is investigated in comparison with the results obtained from the finite element model (FEM).

Hamedani, Amani; Baniassadi, Majid; Sheidaei, A.; Pourboghrat, F.; Remond, Y.; Khaleel, Mohammad A.; Garmestani, Hamid

2014-02-28T23:59:59.000Z

337

Middle grades in-service teachers pedagogical content knowledge of student internal representation of equivalent fractions and algebraic expressions  

E-Print Network (OSTI)

of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2008 Major Subject: Curriculum and Instruction MIDDLE GRADES IN-SERVICE TEACHERS PEDAGOGICAL CONTENT KNOWLEDGE... of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Gerald Kulm Committee Members, Dianne Goldsby Jon Denton Christine Stanley Head of Department, Dennie Smith December 2008 Major Subject: Curriculum and Instruction iii ABSTRACT...

Woodard, Leslie Dorise

2009-05-15T23:59:59.000Z

338

Studies on the production of ultra-clean coal by alkali-acid leaching of low-grade coals  

SciTech Connect

The use of low-grade coal in thermal power stations is leading to environmental pollution due to the generation of large amounts of fly ash, bottom ash, and CO{sub 2} besides other pollutants. It is therefore important to clean the coal before using it in thermal power stations, steel plants, or cement industries etc. Physical beneficiation of coal results in only limited cleaning of coal. The increasing environmental pollution problems from the use of coal have led to the development of clean coal technologies. In fact, the clean use of coal requires the cleaning of coal to ultra low ash contents, keeping environmental norms and problems in view and the ever-growing need to increase the efficiency of coal-based power generation. Therefore this requires the adaptation of chemical cleaning techniques for cleaning the coal to obtain ultra clean coal having ultra low ash contents. Presently the reaction conditions for chemical demineralization of low-grade coal using 20% aq NaOH treatment followed by 10% H{sub 2}SO{sub 4} leaching under reflux conditions have been optimized. In order to reduce the concentration of alkali and acid used in this process of chemical demineralization of low-grade coals, stepwise, i.e., three step process of chemical demineralization of coal using 1% or 5% aq NaOH treatment followed by 1% or 5% H{sub 2}SO{sub 4} leaching has been developed, which has shown good results in demineralization of low-grade coals. In order to conserve energy, the alkali-acid leaching of coal was also carried out at room temperature, which gave good results.

Nabeel, A.; Khan, T.A.; Sharma, D.K. [Jamia Millia Islamia, New Delhi (India). Dept. of Chemistry

2009-07-01T23:59:59.000Z

339

The Development of Listening and Reading Comprehension Screening Measures to Inform Instructional Decisions for End-of-Second-Grade Students  

E-Print Network (OSTI)

Approved by: Chair of Committee, R. Malatesha Joshi Committee Members, G. Reid Lyon Erin McTigue Dennie L. Smith Bruce Thompson Head of Department, Dennie L. Smith May 2011 Major Subject: Curriculum and Instruction iii ABSTRACT... The Development of Listening and Reading Comprehension Screening Measures to Inform Instructional Decisions for End-of-Second-Grade Students. (May 2011) Suzanne Huff Carreker, B.A., Hood College; M.S., Texas A&M University Chair of Advisory Committee: Dr. R...

Carreker, Suzanne 1954-

2012-07-11T23:59:59.000Z

340

Exploring pulse shaping for Z using graded-density impactors on gas guns (final report for LDRD project 79879).  

SciTech Connect

While isentropic compression experiment (ICE) techniques have proved useful in deducing the high-pressure compressibility of a wide range of materials, they have encountered difficulties where large-volume phase transitions exist. The present study sought to apply graded-density impactor methods for producing isentropic loading to planar impact experiments to selected such problems. Cerium was chosen due to its 20% compression between 0.7 and 1.0 GPa. A model was constructed based on limited earlier dynamic data, and applied to the design of a suite of experiments. A capability for handling this material was installed. Two experiments were executed using shock/reload techniques with available samples, loading initially to near the gamma-alpha transition, then reloading. As well, two graded-density impactor experiments were conducted with alumina. A method for interpreting ICE data was developed and validated; this uses a wavelet construction for the ramp wave and includes corrections for the ''diffraction'' of wavelets by releases or reloads reflected from the sample/window interface. Alternate methods for constructing graded-density impactors are discussed.

Furnish, Michael David; Reinhart, William Dodd; Anderson, William W. (Los Alamos National Laboratory, Los Alamos, NM); Vogler, Tracy John; Hixson, Rob (Los Alamos National Laboratory, Los Alamos, NM); Kipp, Marlin E.

2005-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

Development of Functionally Graded Materials for Manufacturing Tools and Dies and Industrial Processing Equipment  

SciTech Connect

Hot forming processes such as forging, die casting and glass forming require tooling that is subjected to high temperatures during the manufacturing of components. Current tooling is adversely affected by prolonged exposure at high temperatures. Initial studies were conducted to determine the root cause of tool failures in a number of applications. Results show that tool failures vary and depend on the operating environment under which they are used. Major root cause failures include (1) thermal softening, (2) fatigue and (3) tool erosion, all of which are affected by process boundary conditions such as lubrication, cooling, process speed, etc. While thermal management is a key to addressing tooling failures, it was clear that new tooling materials with superior high temperature strength could provide improved manufacturing efficiencies. These efficiencies are based on the use of functionally graded materials (FGM), a new subset of hybrid tools with customizable properties that can be fabricated using advanced powder metallurgy manufacturing technologies. Modeling studies of the various hot forming processes helped identify the effect of key variables such as stress, temperature and cooling rate and aid in the selection of tooling materials for specific applications. To address the problem of high temperature strength, several advanced powder metallurgy nickel and cobalt based alloys were selected for evaluation. These materials were manufactured into tooling using two relatively new consolidation processes. One process involved laser powder deposition (LPD) and the second involved a solid state dynamic powder consolidation (SSDPC) process. These processes made possible functionally graded materials (FGM) that resulted in shaped tooling that was monolithic, bi-metallic or substrate coated. Manufacturing of tooling with these processes was determined to be robust and consistent for a variety of materials. Prototype and production testing of FGM tooling showed the benefits of the nickel and cobalt based powder metallurgy alloys in a number of applications evaluated. Improvements in tool life ranged from three (3) to twenty (20) or more times than currently used tooling. Improvements were most dramatic where tool softening and deformation were the major cause of tool failures in hot/warm forging applications. Significant improvement was also noted in erosion of aluminum die casting tooling. Cost and energy savings can be realized as a result of increased tooling life, increased productivity and a reduction in scrap because of improved dimensional controls. Although LPD and SSDPC tooling usually have higher acquisition costs, net tooling costs per component produced drops dramatically with superior tool performance. Less energy is used to manufacture the tooling because fewer tools are required and less recycling of used tools are needed for the hot forming process. Energy is saved during the component manufacturing cycle because more parts can be produced in shorter periods of time. Energy is also saved by minimizing heating furnace idling time because of less downtime for tooling changes.

Lherbier, Louis, W.; Novotnak, David, J.; Herling, Darrell, R.; Sears, James, W.

2009-03-23T23:59:59.000Z

342

U.S. Refiner Gasoline Prices by Grade and Sales Type  

Gasoline and Diesel Fuel Update (EIA)

2007 2008 2009 2010 2011 2012 View 2007 2008 2009 2010 2011 2012 View History Gasoline, All Grades Sales to End Users (Average) 2.345 2.775 1.888 2.301 3.050 3.154 1978-2012 Through Retail Outlets 2.349 2.778 1.892 2.306 3.058 3.168 1978-2012 Other End Users 2.159 2.636 1.779 2.174 2.858 2.916 1978-2012 Sales for Resale (Average) 2.182 2.586 1.767 2.165 2.867 2.929 1978-2012 DTW 2.311 2.726 1.899 2.293 2.990 3.117 1994-2012 Rack 2.180 2.572 1.761 2.162 2.864 2.916 1994-2012 Bulk 2.080 2.532 1.675 2.078 2.769 2.861 1994-2012 Regular Gasoline Sales to End Users (Average) 2.315 2.748 1.856 2.270 3.021 3.118 1983-2012 Through Retail Outlets 2.318 2.752 1.860 2.275 3.028 3.132 1983-2012 Other End Users 2.140 2.611 1.762 2.159 2.843 2.895 1983-2012

343

Longitudinal Investigation of Adaptive Functioning Following Conformal Irradiation for Pediatric Craniopharyngioma and Low-Grade Glioma  

SciTech Connect

Purpose: Children treated for brain tumors with conformal radiation therapy experience preserved cognitive outcomes. Early evidence suggests that adaptive functions or independent-living skills may be spared. This longitudinal investigation prospectively examined intellectual and adaptive functioning during the first 5 years following irradiation for childhood craniopharyngioma and low-grade glioma (LGG). The effect of visual impairment on adaptive outcomes was investigated. Methods and Materials: Children with craniopharyngioma (n=62) and LGG (n=77) were treated using conformal or intensity modulated radiation therapy. The median age was 8.05 years (3.21-17.64 years) and 8.09 years (2.20-19.27 years), respectively. Serial cognitive evaluations including measures of intelligence quotient (IQ) and the Vineland Adaptive Behavior Scales (VABS) were conducted at preirradiation baseline, 6 months after treatment, and annually through 5 years. Five hundred eighty-eight evaluations were completed during the follow-up period. Results: Baseline assessment revealed no deficits in IQ and VABS indices for children with craniopharyngioma, with significant (P<.05) longitudinal decline in VABS Communication and Socialization indices. Clinical factors associated with more rapid decline included females and preirradiation chemotherapy (interferon). The only change in VABS Daily Living Skills correlated with IQ change (r=0.34; P=.01) in children with craniopharyngioma. Children with LGG performed below population norms (P<.05) at baseline on VABS Communication, Daily Living Indices, and the Adaptive Behavior Composite, with significant (P<.05) longitudinal decline limited to VABS Communication. Older age at irradiation was a protective factor against longitudinal decline. Severe visual impairment did not independently correlate with poorer adaptive outcomes for either tumor group. Conclusions: There was relative sparing of postirradiation functional outcomes over time in this sample. Baseline differences in functional abilities before the initiation of irradiation suggested that other factors influence functional outcomes above and beyond the effects of irradiation.

Netson, Kelli L. [Department of Psychiatry and Behavioral Sciences, Kansas University School of Medicine—Wichita, Kansas (United States)] [Department of Psychiatry and Behavioral Sciences, Kansas University School of Medicine—Wichita, Kansas (United States); Conklin, Heather M. [Department of Psychology, St Jude Children's Research Hospital, Memphis, Tennessee (United States)] [Department of Psychology, St Jude Children's Research Hospital, Memphis, Tennessee (United States); Wu, Shengjie; Xiong, Xiaoping [Department of Biostatistics, St Jude Children's Research Hospital, Memphis, Tennessee (United States)] [Department of Biostatistics, St Jude Children's Research Hospital, Memphis, Tennessee (United States); Merchant, Thomas E., E-mail: thomas.merchant@stjude.org [Division of Radiation Oncology, St Jude Children's Research Hospital, Memphis, Tennessee (United States)

2013-04-01T23:59:59.000Z

344

Method for forming an in-situ oil shale retort in differing grades of oil shale  

SciTech Connect

An in-situ oil shale retort is formed in a subterranean formation containing oil shale. The formation comprises at least one region of relatively richer oil shale and another region of relatively leaner oil shale. According to one embodiment, formation is excavated from within a retort site for forming at least one void extending horizontally across the retort site, leaving a portion of unfragmented formation including the regions of richer and leaner oil shale adjacent such a void space. A first array of vertical blast holes are drilled in the regions of richer and leaner oil shale, and a second array of blast holes are drilled at least in the region of richer oil shale. Explosive charges are placed in portions of the blast holes in the first and second arrays which extend into the richer oil shale, and separate explosive charges are placed in portions of the blast holes in the first array which extend into the leaner oil shale. This provides an array with a smaller scaled depth of burial (sdob) and closer spacing distance between explosive charges in the richer oil shale than the sdob and spacing distance of the array of explosive charges in the leaner oil shale. The explosive charges are detonated for explosively expanding the regions of richer and leaner oil shale toward the horizontal void for forming a fragmented mass of particles. Upon detonation of the explosive, greater explosive energy is provided collectively by the explosive charges in the richer oil shale, compared with the explosive energy produced by the explosive charges in the leaner oil shale, resulting in comparable fragmentation in both grades of oil shale.

Ricketts, T.E.

1984-04-24T23:59:59.000Z

345

Effect of graded hypoxia on retention of technetium-99m-nitroheterocycle in perfused rat heart  

SciTech Connect

The purpose of this investigation was to determine the effects of graded hypoxia on the retention of a {sup 99m}Tc-labeled nitroimidazole. Rat hearts were perfused retrogradely with Krebs-Henseleit buffer at 37{degrees}C and paced at 5 Hz. After a 20-min stabilization period, coronary flow was maintained at 8 ml/min/g wet wt and the hearts were perfused with media equilibrated with gas mixtures containing 5% CO{sub 2} and various levels of O{sub 2}, from 544 to 29 Torr. Technetium-99m-O(PnAO-1-(2-nitroimidazole)), BMS-181321, was infused for 20 min into a side port of the aortic cannula. Perfusion continued for an additional 40 min to allow for compound clearance. Each decrease of perfusate PO{sub 2} brought about an increase in the retention of BMS-181321, resulting in a good correlation between its retention and perfusate PO{sub 2} (r=0.97). Myocardial oxygen consumption was independent of oxygen delivery when the perfusate oxygen pressure was greater than 350 Torr. Below this value, oxygen consumption declined markedly as influent PO{sub 2}. A good correlation was obtained between retention of the nitroheterocycle and the cytosolic lactate/pyruvate ratio (r=0.98). When glucose was omitted from the perfusate (PO{sub 2}=27 Torr), retention of the nitroheterocycle was increased by about 25% as compared to hearts perfused in the presence of this substrate. These results indicate that myocardial retention of BMS-181321 is coupled to the level of tissue oxygenation and that hypoxic retention may be affected by substrate input. 24 refs., 3 figs., 1 tab.

Rumsey, W.L.; Patel, B.; Linder, K.E. [Bristol-Myers Squibb Pharmaceutical Research Inst., Princeton, NJ (United States)

1995-04-01T23:59:59.000Z

346

Strain-Based Design Methodology of Large Diameter Grade X80 Linepipe  

SciTech Connect

Continuous growth in energy demand is driving oil and natural gas production to areas that are often located far from major markets where the terrain is prone to earthquakes, landslides, and other types of ground motion. Transmission pipelines that cross this type of terrain can experience large longitudinal strains and plastic circumferential elongation as the pipeline experiences alignment changes resulting from differential ground movement. Such displacements can potentially impact pipeline safety by adversely affecting structural capacity and leak tight integrity of the linepipe steel. Planning for new long-distance transmission pipelines usually involves consideration of higher strength linepipe steels because their use allows pipeline operators to reduce the overall cost of pipeline construction and increase pipeline throughput by increasing the operating pressure. The design trend for new pipelines in areas prone to ground movement has evolved over the last 10 years from a stress-based design approach to a strain-based design (SBD) approach to further realize the cost benefits from using higher strength linepipe steels. This report presents an overview of SBD for pipelines subjected to large longitudinal strain and high internal pressure with emphasis on the tensile strain capacity of high-strength microalloyed linepipe steel. The technical basis for this report involved engineering analysis and examination of the mechanical behavior of Grade X80 linepipe steel in both the longitudinal and circumferential directions. Testing was conducted to assess effects on material processing including as-rolled, expanded, and heat treatment processing intended to simulate coating application. Elastic-plastic and low-cycle fatigue analyses were also performed with varying internal pressures. Proposed SBD models discussed in this report are based on classical plasticity theory and account for material anisotropy, triaxial strain, and microstructural damage effects developed from test data. The results are intended to enhance SBD and analysis methods for producing safe and cost effective pipelines capable of accommodating large plastic strains in seismically active arctic areas.

Lower, Mark D. [ORNL] [ORNL

2014-04-01T23:59:59.000Z

347

Carbon dioxide removal and capture for landfill gas up-grading  

Science Journals Connector (OSTI)

Within the frame of an EC financially supported project - LIFE05 ENV/IT/000874 GHERL (Greenhouse Effect Reduction from Landfill)–a pilot plant was set up in order to demonstrate the feasibility of applying chemical absorption to remove carbon dioxide from landfill gas. After proper upgrading - basically removal of carbon dioxide, hydrogen sulphide, ammonia and other trace gas compound–the gas might be fed into the distribution grid for natural gas or used as vehicle fuel, replacing a fossil fuel thus saving natural resources and carbon dioxide emissions. Several experiences in Europe have been carried out concerning the landfill gas - and biogas from anaerobic digestion - quality up-grading through CO2 removal, but in all of them carbon dioxide was vented to the atmosphere after separation, without any direct benefit in terms of greenhouse gases reduction. With respect to those previous experiences, in this work the attention was focused on CO2 removal from landfill gas with an effective capture process, capable of removing carbon dioxide from atmosphere, through a globally carbon negative process. In particular, processes capable of producing final solid products were investigated, with the aim of obtaining as output solid compounds which can be either used in the chemical industry or disposed off. The adopted absorption process is based on using aqueous solutions of potassium hydroxide, with the final aim of producing potassium carbonate. Potassium carbonate is a product which has several applications in the chemical industry if obtained with adequate quality. It can be sold as a pulverised solid, or in aqueous solution. Several tests were carried out at the pilot plant, which was located at a landfill site, in order to feed it with a fraction of the on-site collected landfill gas. The results of the experimental campaign are reported, explained and commented in the paper. Also a discussion on economic issues is presented.

Lidia Lombardia; Andrea Corti; Ennio Carnevale; Renato Baciocchi; Daniela Zingaretti

2011-01-01T23:59:59.000Z

348

Change in Pattern of Relapse After Antiangiogenic Therapy in High-Grade Glioma  

SciTech Connect

Purpose: Local recurrence is the dominant pattern of relapse in high-grade glioma (HGG) after conventional therapy. The recent use of antiangiogenic therapy has shown impressive radiologic and clinical responses in adult HGG. The preclinical data suggesting increased invasiveness after angiogenic blockade have necessitated a detailed analysis of the pattern of recurrence after therapy. Methods and Materials: A total of 162 consecutive patients with HGG, either newly diagnosed (n = 58) or with recurrent disease (n = 104) underwent therapy with bevacizumab at 10 mg/kg every 2 weeks and conventional chemotherapy with or without involved field radiotherapy until disease progression. The pattern of recurrence and interval to progression were the primary aims of the present study. Diffuse invasive recurrence (DIR) was defined as the involvement of multiple lobes with or without crossing the midline. Results: At a median follow-up of 7 months (range, 1-37), 105 patients had recurrence, and 79 patients ultimately developed DIR. The interval to progression was similar in the DIR and local recurrence groups (6.5 and 6.3 months, p = .296). The hazard risk of DIR increased exponentially with time and was similar in those with newly diagnosed and recurrent HGG (R{sup 2} = 0.957). The duration of bevacizumab therapy increased the interval to recurrence (p < .0001) and improved overall survival (p < .0001). However, the pattern of relapse did not affect overall survival (p = .253). Conclusion: Along with an increase in median progression-free survival, bevacizumab therapy increased the risk of DIR in HGG patients. The risk of increased invasion with prolonged angiogenic blockade should be addressed in future clinical trials.

Narayana, Ashwatha, E-mail: ashwatha.narayana@nyumc.org [Department of Radiation Oncology, New York University Langone Medical Center, New York, NY (United States); Department of Neurosurgery, New York University Langone Medical Center, New York, NY (United States); Kunnakkat, Saroj D. [Department of Radiation Oncology, New York University Langone Medical Center, New York, NY (United States); Medabalmi, Praveen [Department of Biostatistics, New York University Langone Medical Center, New York, NY (United States); Golfinos, John; Parker, Erik [Department of Neurosurgery, New York University Langone Medical Center, New York, NY (United States); Knopp, Edmond [Department of Radiology, New York University Langone Medical Center, New York, NY (United States); Zagzag, David [Department of Pathology, New York University Langone Medical Center, New York, NY (United States); Eagan, Patricia [Department of Neuro-Oncology, New York University Langone Medical Center, New York, NY (United States); Atlantic Health System, Overlook Hospital, Summit, NJ (United States); Gruber, Deborah [Department of Neuro-Oncology, New York University Langone Medical Center, New York, NY (United States); Gruber, Michael L. [Department of Neurosurgery, New York University Langone Medical Center, New York, NY (United States); Department of Neuro-Oncology, New York University Langone Medical Center, New York, NY (United States); Atlantic Health System, Overlook Hospital, Summit, NJ (United States)

2012-01-01T23:59:59.000Z

349

General Assembly Meeting: October 6th, 2013 Keywords: Labor/USLAC and Sun Services, divestment from fossil fuels, grading mode changes,  

E-Print Network (OSTI)

fossil fuels, grading mode changes, winter session ("JTerm"). Agenda: Opening of the Meeting: Meeting. Claire Marshall: there are health codes that prevent students from cleaning up toilets and other areas

Royer, Dana

350

Organic Solar Cells with Graded Exciton-dissociation Interfaces.................................................................................................................EN.1 Luminescent Solar Concentrators for Energy-harvesting in Displays ........  

E-Print Network (OSTI)

Energy Organic Solar Cells with Graded Exciton-dissociation Interfaces.................................................................................................................EN.1 Luminescent Solar Concentrators for Energy-harvesting in Displays ...................................................................................EN.3 Nano-engineered Organic Solar-energy-harvesting System

Reif, Rafael

351

Subcellular distribution of cholesterol within muscle and adipose tissues of beef longissimus steaks as influenced by cooking, quality grade and fat trim level  

E-Print Network (OSTI)

SUBCELLULAR DISTRIBUTION OF CHOLESTEROL WITHIN MUSCLE AND ADIPOSE TISSUES OF BEEF LONGISSIMUS STEAKS AS INFLUENCED BY COOKING, QUALITY GRADE AND FAT TRIM LEVEL A Thesis by LISA MARIE HOELSCHER Submitted to the Graduate College of Texas ASM... AS INFLUENCED BY COOKING, QUALITY GRADE AND FAT TRIM LEVEL A Thesis by LISA MARIE HOELSCHER Approved as to style and content by: f Savell (Chair of Committee) Barbara O' Brien (Member) Karen Kubena (Member) Gary C. Smith (Head of Department) August...

Hoelscher, Lisa Marie

2012-06-07T23:59:59.000Z

352

A cross validation of a statistical method of predicting Chemistry 101 grades for entering freshmen at the Agricultural and Mechanical College of Texas  

E-Print Network (OSTI)

21 IV PREDICTION OF CHEMISTRY 101 GRADES AT THE AGRICULTURAL AND MECHANICAL COLLEGE OF TEXAS . 24 The Basic Division study Data . T echnique Results. . . . . . ~ . 24 24 , 25 PROCEDURE FOR THE CROSS VALIDATION . 29 Data ~ Sampl e.... . . , . . . , . . . , . . . . , , 41 Multiple correlations and regression equations. . . 47 VII. A COMPARISON OF THE TWO STUDIES ATTEMPTING PREDICTION OF CHEMISTRY 101 GRADES 53 T echnique . . . . . . . * Zero-order correlations Means of the variables ~ ~ ~ ~ ~ ~ Multiple...

Kallus, Daniel Jaroslav

1957-01-01T23:59:59.000Z

353

The effect of graded doses of corticosteroids on regional body calcium in the cebus monkey: an analysis with in vivo neutron activation  

E-Print Network (OSTI)

of Utrecht Chairman of Advisory Committee: Dr. Leon H. Russell I Eight adult Cebus ~a ella/Cebus albifrons were studied to determine the effects of an 11-week graded dosage treatment with cortisone acetate followed by a 5-week treatment... of Utrecht Chairman of Advisory Committee: Dr. Leon H. Russell I Eight adult Cebus ~a ella/Cebus albifrons were studied to determine the effects of an 11-week graded dosage treatment with cortisone acetate followed by a 5-week treatment...

Loeffler, Scott Howard

2012-06-07T23:59:59.000Z

354

The Development and Production of a Functionally Graded Composite for Pb-Bi Service  

SciTech Connect

A material that resists lead-bismuth eutectic (LBE) attack and retains its strength at 700ï?°C would be an enabling technology for LBE-cooled reactors. No single alloy currently exists that can economically meet the required performance criteria of high strength and corrosion resistance. A Functionally Graded Composite (FGC) was developed with layers engineered to perform these functions. F91 was chosen as the structural layer of the composite for its strength and radiation resistance. Fe-12Cr-2Si, an alloy developed from previous work in the Fe-Cr-Si system, was chosen as the corrosion-resistant cladding layer because of its chemical similarity to F91 and its superior corrosion resistance in both oxidizing and reducing environments. Fe-12Cr-2Si experienced minimal corrosion due to its self-passivation in oxidizing and reducing environments. Extrapolated corrosion rates are below one micron per year at 700ï?°C. Corrosion of F91 was faster, but predictable and manageable. Diffusion studies showed that 17 microns of the cladding layer will be diffusionally diluted during the three year life of fuel cladding. 33 microns must be accounted for during the sixty year life of coolant piping. 5 cm coolant piping and 6.35 mm fuel cladding preforms were produced on a commercial scale by weld-overlaying Fe-12Cr-2Si onto F91 billets and co-extruding them. An ASME certified weld was performed followed by the prescribed quench-and-tempering heat treatment for F91. A minimal heat affected zone was observed, demonstrating field weldability. Finally, corrosion tests were performed on the fabricated FGC at 700ï?°C after completely breaching the cladding in a small area to induce galvanic corrosion at the interface. None was observed. This FGC has significant impacts on LBE reactor design. The increases in outlet temperature and coolant velocity allow a large increase in power density, leading to either a smaller core for the same power rating or more power output for the same size core. This FGC represents an enabling technology for LBE cooled fast reactors.

Ballinger, Ronald G

2011-08-01T23:59:59.000Z

355

More insights into band gap graded a-SiGe:H solar cells by experimental and simulated data  

SciTech Connect

An experimental and numerical study of a-SiGe:H based solar cells with band gap graded i-layer in the shape of a V is presented. The variation of the location of the band gap minimum has strong influence on the solar cell performance. Comparisons of experimental and simulated data of the dark IV-behavior, IV-curves under illumination and the quantum efficiency allow insights into the transport and recombination behavior within the solar cell. The simulations reveal that the position as well as the charge state of the defects determine the device characteristics.

Zimmer, J.; Stiebig, H.; Foelsch, J.; Finger, F.; Eickhoff, T.; Wagner, H.

1997-07-01T23:59:59.000Z

356

Effects of a holistic rapid-learning system on the success rate of third grade at risk math students  

E-Print Network (OSTI)

of the requirements for the degree of MASTER OF SCIENCE Nay 1990 Najor Subject: Curriculum and Instruction EFFECTS OF A HOLISTIC' RAPID-LEARNING STSTEM ON THE SUCCESS RATE OF THIRD GRADE AT RISK MATH STUDENTS A Thesis by SUSAN MARI E BAUMANN Approved... AND RECONNENDATIONS 29 29 33 34 35 Introduction. Discussion. Conclusions Recommendations REFERENCES 35 35 39 40 41 VITA 45 LIST OF TABLES Table Page Summary of the population Used in Both Groups. 17 The Scaled Scores from TEAMS and NAT 6 for Both...

Baumann, Susan Marie

1990-01-01T23:59:59.000Z

357

Nanoscale Graphene Disk: A Natural Functionally Graded Material --The Thermal Conductivity of Nanoscale Graphene Disk by Molecular Dynamics Simulation  

E-Print Network (OSTI)

In this letter, we investigate numerically (by non-equilibrium molecular dynamics) and analytically the thermal conductivity of nanoscale graphene disks (NGDs), and discussed the possibility to realize FGM with only one material, NGDs. We found that the NGD has a graded thermal conductivity and can be used as FGM in a large temperature range. Moreover, we show the dependent of NGDs' thermal conductivity on radius and temperature. Our study may inspire experimentalists to develop NGD based FGMs and help heat removal of hot spots on chips by graphene.

Yang, Nuo; Ma, Dengke; Lu, Tingyu; Li, Baowen

2014-01-01T23:59:59.000Z

358

Piezoelectricity above the Curie temperature? Combining flexoelectricity and functional grading to enable high-temperature electromechanical coupling  

SciTech Connect

Most technologically relevant ferroelectrics typically lose piezoelectricity above the Curie temperature. This limits their use to relatively low temperatures. In this Letter, exploiting a combination of flexoelectricity and simple functional grading, we propose a strategy for high-temperature electromechanical coupling in a standard thin film configuration. We use continuum modeling to quantitatively demonstrate the possibility of achieving apparent piezoelectric materials with large and temperature-stable electromechanical coupling across a wide temperature range that extends significantly above the Curie temperature. With Barium and Strontium Titanate, as example materials, a significant electromechanical coupling that is potentially temperature-stable up to 900?°C is possible.

Mbarki, R. [Department of Mechanical Engineering, University of Houston, Houston, Texas 77204 (United States); Baccam, N. [Department of Mathematics, Southwestern University, Georgetown, Texas 78626 (United States); Dayal, Kaushik [Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States); Sharma, P. [Department of Mechanical Engineering and Department of Physics, University of Houston, Houston, Texas 77204 (United States)

2014-03-24T23:59:59.000Z

359

Graded index and randomly oriented core-shell silicon nanowires with broadband and wide angle antireflection for photovoltaic cell applications  

E-Print Network (OSTI)

Antireflection with broadband and wide angle properties is important for a wide range of applications on photovoltaic cells and display. The SiOx shell layer provides a natural antireflection from air to the Si core absorption layer. In this work, we have demonstrated the random core-shell silicon nanowires with both broadband (from 400nm to 900nm) and wide angle (from normal incidence to 60\\degree) antireflection characteristics within AM1.5 solar spectrum. The graded index structure from the randomly oriented core-shell (Air/SiOx/Si) nanowires may provide a potential avenue to realize a broadband and wide angle antireflection layer.

Pignalosa, P; Qiao, L; Tseng, M; Yi, Yasha

2011-01-01T23:59:59.000Z

360

Development of a four-grade and four-segment electrodialysis setup for desalination of polymer-flooding produced water  

Science Journals Connector (OSTI)

An electrodialysis (ED) setup with an 11 m3/h water treatment scale was designed based on a small experimental device. The setup adopts four-grade and four-segment (four-GS) reversal electrodialysis (EDR) technology to desalinate polymer-flooding produced water (PFPW). The removal rate of total dissolved solids (TDS) with different flow rates was measured with different grades and segments. The operating performance of this setup was determined to meet design standards. The maximum treatment capacity and the optimal operation conditions of the tested setup were studied. The design standards were met only by adopting a four-GS ED setup. The maximal capacity of the four-GS ED setup for treating PFPW was 5 m3/h. The optimal operating condition and results were at an operating electric current of 86 A, 62.5% production rate of diluted treated PFPW, 0.89 kW?h/m3 energy consumption, and 78.7% TDS removal rate. Under optimal conditions, the treated PFPW has two beneficial uses. First, the diluted treated PFPW is feasible for preparing polymer solutions. Second, the concentrated treated PFPW is feasible for replacing the original PFPW as the injecting water in the water-flooding process for high permeability layers.

Jing Guolin; Xing Lijie; Liu Yang; Du Wenting; Han Chunjie

2010-01-01T23:59:59.000Z

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361

Cognitive function after radiotherapy for supratentorial low-grade glioma: A North Central Cancer Treatment Group prospective study  

SciTech Connect

Purpose: To evaluate the effects of cranial radiotherapy (RT) on cognitive function in patients with supratentorial low-grade glioma. Methods and Materials: Twenty adult patients with supratentorial low-grade glioma were treated with 50.4 Gy (10 patients) or 64.8 Gy (10 patients) localized RT. The patients then were evaluated with an extensive battery of psychometric tests at baseline (before RT) and at approximately 18-month intervals for as long as 5 years after completing RT. To allow patients to serve as their own controls, cognitive performance was evaluated as change in scores over time. All patients underwent at least two evaluations. Results: Baseline test scores were below average compared with age-specific norms. At the second evaluation, the groups' mean test scores were higher than their initial performances on all psychometric measures, although the improvement was not statistically significant. No changes in cognitive performance were seen during the evaluation period when test scores were analyzed by age, treatment, tumor location, tumor type, or extent of resection. Conclusions: Cognitive function was stable after RT in these patients evaluated prospectively during 3 years of follow-up. Slight improvements in some cognitive areas are consistent with practice effects attributable to increased familiarity with test procedures and content.

Laack, Nadia N. [Division of Radiation Oncology, Mayo Clinic, Rochester, MN (United States); Brown, Paul D. [Division of Radiation Oncology, Mayo Clinic, Rochester, MN (United States)]. E-mail: brown.paul@mayo.edu; Ivnik, Robert J. [Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN (United States); Furth, Alfred F. M.S. [Cancer Center Statistics, Mayo Clinic, Rochester, MN (United States); Ballman, Karla V. [Division of Biostatistics, Mayo Clinic, Rochester, MN (United States); Hammack, Julie E. [Department of Neurology, Mayo Clinic, Rochester, MN (United States); Arusell, Robert M. [Roger Maris Cancer Center, Fargo, ND (United States); Shaw, Edward G. [Wake Forest University School of Medicine, Winston-Salem, NC (United States); Buckner, Jan C. [Division of Medical Oncology, Mayo Clinic, Rochester, MN (United States)

2005-11-15T23:59:59.000Z

362

Evaluation of an on-line ash analysis system for low-grade and inhomogeneous Greek lignite  

SciTech Connect

The possibility of using commercial on-line analysis systems for monitoring the ash content of low-grade lignites was investigated by carrying out numerous bench- and pilot-scale trials in the mines of Public Power Corporation SA, Greece. Pilot-scale trials were based on a dual-energy {gamma}-ray transmission analyzer, which was installed on the conveyor belt that transports lignite from the pit to the bunker of Kardia mine, Ptolemais. According to the obtained results, the accuracy of the on-line measurements was not adequate and did not allow lignite quality monitoring in real time. The deterioration of the on-line measurements' accuracy, compared to previous applications in other mining sites, was related to the intense variation of the lignite ash content and ash composition, which distorted the calibration of the analyzer. The latter is based on certain assumptions regarding the average atomic number of the organic and mineral matter contained in the lignite. Further experimental work is needed to investigate solutions for successful implementation of this method to low-grade lignites that exhibit large variation in ash content and composition. 17 refs., 15 figs., 7 tabs.

Konstantinos V. Kavouridis; Francis F. Pavloudakis [Public Power Corporation SA, Athens (Greece). General Division of Mines

2007-08-15T23:59:59.000Z

363

A Detailed Approach To Low-Grade Geothermal Resources In The Appalachian Basin Of New York And Pennsylvania: Heterogeneities Within The Geologic Model And Their Effect On Geothermal Resource Assessment .  

E-Print Network (OSTI)

??The potential to utilize widespread low -grade geothermal resources of the Northeastern U.S. for thermal direct use and combined heat and power applications can be… (more)

Shope, Elaina

2012-01-01T23:59:59.000Z

364

Online instruction about integration of science and mathematics with middle-grades teachers: Four years in and aiming for sustainability  

Science Journals Connector (OSTI)

Abstract The purpose of this article is to illustrate the model used to develop an online graduate program called iSMART (Integration of Science and Mathematics and Reflective Teaching) and discuss the changes made in the program over the past 4 years. Starting in 2009 as its preparation year, iSMART is a unique project aimed to provide an online master's program for middle-grade science and mathematics teachers in Texas and is currently working with its 4th cohort of teachers. The authors identify the necessary infrastructure and provide examples for others to consider as they take on similar challenges in developing sustainable online programs with practicing science and mathematics teachers.

Jennifer Chauvot; Mimi Miyoung Lee

2015-01-01T23:59:59.000Z

365

Standard test methods for chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of nuclear-grade uranyl nitrate solutions  

E-Print Network (OSTI)

1.1 These test methods cover procedures for the chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of nuclear-grade uranyl nitrate solution to determine compliance with specifications. 1.2 The analytical procedures appear in the following order: Sections Determination of Uranium 7 Specific Gravity by Pycnometry 15-20 Free Acid by Oxalate Complexation 21-27 Determination of Thorium 28 Determination of Chromium 29 Determination of Molybdenum 30 Halogens Separation by Steam Distillation 31-35 Fluoride by Specific Ion Electrode 36-42 Halogen Distillate Analysis: Chloride, Bromide, and Iodide by Amperometric Microtitrimetry 43 Determination of Chloride and Bromide 44 Determination of Sulfur by X-Ray Fluorescence 45 Sulfate Sulfur by (Photometric) Turbidimetry 46 Phosphorus by the Molybdenum Blue (Photometric) Method 54-61 Silicon by the Molybdenum Blue (Photometric) Method 62-69 Carbon by Persulfate Oxidation-Acid Titrimetry 70 Conversion to U3O8 71-74 Boron by ...

American Society for Testing and Materials. Philadelphia

1999-01-01T23:59:59.000Z

366

Standard test methods for chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of nuclear-grade plutonium nitrate solutions  

E-Print Network (OSTI)

1.1 These test methods cover procedures for the chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of nuclear-grade plutonium nitrate solutions to determine compliance with specifications. 1.2 The analytical procedures appear in the following order: Sections Plutonium by Controlled-Potential Coulometry Plutonium by Amperometric Titration with Iron(II) Plutonium by Diode Array Spectrophotometry Free Acid by Titration in an Oxalate Solution 8 to 15 Free Acid by Iodate Precipitation-Potentiometric Titration Test Method 16 to 22 Uranium by Arsenazo I Spectrophotometric Test Method 23 to 33 Thorium by Thorin Spectrophotometric Test Method 34 to 42 Iron by 1,10-Phenanthroline Spectrophotometric Test Method 43 to 50 Impurities by ICP-AES Chloride by Thiocyanate Spectrophotometric Test Method 51 to 58 Fluoride by Distillation-Spectrophotometric Test Method 59 to 66 Sulfate by Barium Sulfate Turbidimetric Test Method 67 to 74 Isotopic Composition by Mass Spectrom...

American Society for Testing and Materials. Philadelphia

2010-01-01T23:59:59.000Z

367

Standard test methods for chemical and mass spectrometric analysis of nuclear-grade gadolinium oxide (Gd2O3) powder  

E-Print Network (OSTI)

1.1 These test methods cover procedures for the chemical and mass spectrometric analysis of nuclear-grade gadolinium oxide powders to determine compliance with specifications. 1.2 The analytical procedures appear in the following order: Sections Carbon by Direct CombustionThermal Conductivity C1408 Test Method for Carbon (Total) in Uranium Oxide Powders and Pellets By Direct Combustion-Infrared Detection Method Total Chlorine and Fluorine by Pyrohydrolysis Ion Selective Electrode C1502 Test Method for Determination of Total Chlorine and Fluorine in Uranium Dioxide and Gadolinium Oxide Loss of Weight on Ignition 7-13 Sulfur by CombustionIodometric Titration Impurity Elements by a Spark-Source Mass Spectrographic C761 Test Methods for Chemical, Mass Spectrometric, Spectrochemical,Nuclear, and Radiochemical Analysis of Uranium Hexafluoride C1287 Test Method for Determination of Impurities In Uranium Dioxide By Inductively Coupled Plasma Mass Spectrometry Gadolinium Content in Gadolinium Oxid...

American Society for Testing and Materials. Philadelphia

2006-01-01T23:59:59.000Z

368

DOE-STD-1153-2002; A Graded Approach for Evaluating Radiation Doses to Aquatic and Terrestrial Biota  

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

1153-2002 1153-2002 July 2002 DOE STANDARD A GRADED APPROACH FOR EVALUATING RADIATION DOSES TO AQUATIC AND TERRESTRIAL BIOTA U.S. Department of Energy AREA ENVR Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. This document has been reproduced from the best available copy. Available to DOE and DOE contractors from ES&H Technical Information Services, U.S. Department of Energy, (800) 473-4375, fax: (301) 903-9823. Available to the public from the U.S. Department of Commerce, Technology Administration, National Technical Information Service, Springfield, VA 22161; (703) 605-6000. DOE-STD-1153-2002 iii Foreword 1. Department of Energy (DOE) activities may expose populations of plants and animals to radioactive materials in environmental media, or to radioactive materials released in waste streams. This DOE voluntary

369

Combined strengthening of multi-phase and graded interface in laser additive manufactured TiC/Inconel 718 composites  

Science Journals Connector (OSTI)

Laser metal deposition (LMD) additive manufacturing of TiC particle reinforced Inconel 718 composite parts was performed. The influence of laser energy density (LED) on densification, microstructures and wear behaviour of LMD-processed composites was studied. It showed that using a LED of 280?J?mm?3 produced ~5% porosity in LMD-processed composites, caused by the aggregation of reinforcing particles. A further increase in LED above 350?J?mm?3 yielded near-full densification. Two categories of reinforcing phases, i.e. the substoichiometric TiCx particles and the in situ (Ti,M)C (M?=?Mo, Nb and Cr) carbide having 7?10?at% Nb and Mo contents, were formed in the matrix of LMD-processed composites. The TiCx reinforcing particles changed from an irregular poly-angular shape to a smoothened and refined structure as the LED increased. An increase in LED resulted in a larger amount of phase formation and an enhanced degree of crystal growth of the in situ (Ti,M)C reinforcement. The interfacial graded layer with thickness of 0.2?1.2??m, which was identified as (Ti,M)C (M?=?Mo, Nb and Cr) carbide with 5?6?at% Mo and Nb contents, was tailored between the TiCx particles and the matrix. At an optimal LED of 420?J?mm?3, a considerably low coefficient of friction of 0.38 and resultant low wear rate of 1.8???10?4?mm3?N?1?m?1 were obtained in sliding tests, due to the combined strengthening of the interfacial graded layer and the multiple reinforcing phases. The wear resistance decreased at an excessive LED because of the coarsening of reinforcement crystals and the decrease in microstructural uniformity of composites.

Dongdong Gu; Chen Hong; Qingbo Jia; Donghua Dai; Andres Gasser; Andreas Weisheit; Ingomar Kelbassa; Minlin Zhong; Reinhart Poprawe

2014-01-01T23:59:59.000Z

370

Patterns of Failure After Concurrent Bevacizumab and Hypofractionated Stereotactic Radiation Therapy for Recurrent High-Grade Glioma  

SciTech Connect

Purpose: Concurrent bevacizumab with hypofractionated stereotactic radiation therapy (HSRT) is safe and effective for the treatment of recurrent high-grade gliomas (HGG). The objective of this study was to characterize the patterns of failure after this treatment regimen. Methods and Materials: Twenty-four patients with recurrent enhancing HGG were previously treated on an institutional review board-approved protocol of concurrent bevacizumab and reirradiation. Patients received 30 Gy in 5 fractions to the recurrent tumor with HSRT. Brain magnetic resonance imaging (MRI) was performed every 2 cycles, and bevacizumab was continued until clinical or radiographic tumor progression according to the criteria of Macdonald et al. MRI at the time of progression was fused to the HSRT treatment plan, and the location of recurrence was classified on the basis of volume within the 95% isodose line. Outcomes based on patient characteristics, tumor grade, recurrence pattern, and best response to treatment were analyzed by the Kaplan-Meier method. Results: Twenty-two patients experienced either clinical or radiographic progression. Recurrent tumor was enhancing in 15 (71.4%) and nonenhancing in 6 (28.6%) patients. Eleven patients (52.4%) had recurrence within the radiation field, 5 patients (23.8%) had marginal recurrence, and 5 patients had recurrence outside the radiation field. Pattern of enhancement and location of failure did not correlate with overall survival or progression-free survival. Radiographic response was the only variable to significantly correlate with progression-free survival. Conclusions: Despite the promising initial response seen with the addition of HSRT to bevacizumab as salvage treatment for recurrent HGG, approximately half of patients ultimately still experience failure within the radiation field. The rate of local failure with the addition of HSRT seems to be lower than that seen with bevacizumab alone in the salvage setting. Our data underscore the radioresistance of HGG and the need for better salvage treatments.

Shapiro, Lauren Q. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Beal, Kathryn, E-mail: bealk@mskcc.org [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Goenka, Anuj [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Karimi, Sasan [Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Iwamoto, Fabio M. [Department of Neurology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Neurology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Yamada, Yoshiya [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Zhang, Zhigang [Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Lassman, Andrew B.; Abrey, Lauren E. [Department of Neurology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Neurology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Gutin, Philip H. [Department of Neurosurgery, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Neurosurgery, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)

2013-03-01T23:59:59.000Z

371

Collect Available Creep-Fatigue Data and Study Existing Creep-Fatigue Evaluation Procedures for Grade 91 and Hastelloy XR  

SciTech Connect

This report describes the results of investigation on Task 5 of DOE/ASME Materials Project based on a contract between ASME Standards Technology, LLC (ASME ST-LLC) and Japan Atomic Energy Agency (JAEA). Task 5 is to collect available creep-fatigue data and study existing creep-fatigue evaluation procedures for Grade 91 steel and Hastelloy XR. Part I of this report is devoted to Grade 91 steel. Existing creep-fatigue data were collected (Appendix A) and analyzed from the viewpoints of establishing a creep-fatigue procedure for VHTR design. A fair amount of creep-fatigue data has been obtained and creep-fatigue phenomena have been clarified to develop design standards mainly for fast breeder reactors. Following this, existing creep-fatigue procedures were studied and it was clarified that the creep-fatigue evaluation procedure of the ASME-NH has a lot of conservatisms and they were analyzed in detail from the viewpoints of the evaluation of creep damage of material. Based on the above studies, suggestions to improve the ASME-NH procedure along with necessary research and development items were presented. Part II of this report is devoted to Hastelloy XR. Existing creep-fatigue data used for development of the high temperature structural design guideline for High Temperature Gas-cooled Reactor (HTGR) were collected. Creep-fatigue evaluation procedure in the design guideline and its application to design of the intermediate heat exchanger (IHX) for High Temperature Engineering Test Reactor (HTTR) was described. Finally, some necessary research and development items in relation to creep-fatigue evaluation for Gen IV and VHTR reactors were presented.

Tai Asayama; Yukio Tachibana

2007-09-30T23:59:59.000Z

372

Review of Commercial Grade Dedication Plans for the Safety Instrumented System at the Savannah River Site Waste Solidification Building Project, August 2011  

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

Review of Review of Commercial Grade Dedication Plans for the Safety Instrumented System at the Savannah River Site Waste Solidification Building Project May 2011 August 2011 Office of Safety and Emergency Management Evaluations Office of Health, Safety and Security U.S. Department of Energy i Table of Contents 1.0 Purpose ................................................................................................................................................... 1 2.0 Scope ...................................................................................................................................................... 1 3.0 Background ............................................................................................................................................ 2

373

Review of Commercial Grade Dedication Plans for the Safety Instrumented System at the Savannah River Site Waste Solidification Building Project, August 2011  

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

Review of Review of Commercial Grade Dedication Plans for the Safety Instrumented System at the Savannah River Site Waste Solidification Building Project May 2011 August 2011 Office of Safety and Emergency Management Evaluations Office of Health, Safety and Security U.S. Department of Energy i Table of Contents 1.0 Purpose ................................................................................................................................................... 1 2.0 Scope ...................................................................................................................................................... 1 3.0 Background ............................................................................................................................................ 2

374

Carrier and light trapping in graded quantum-well laser structures G. Aichmayr, M. D. Martin, H. van der Meulen, C. Pascual, L. Vin~a,a)  

E-Print Network (OSTI)

efficiency for these samples has been reported recently in Ref. 7 The conduction band energy pro- files, and that the trapping efficiency is enhanced by increasing the graded confining potential. © 2000 American Institute together with the energy and width of the laser emission. The overall magnitude of the confining potential

Viña, Luis

375

Finding limits in MATLAB 1 If this MATLAB excercise is being counted in your grade, then please record your answers to all the  

E-Print Network (OSTI)

Finding limits in MATLAB 1 If this MATLAB excercise is being counted in your grade, then please will learn how to use MATLAB to find limits of functions. All the limits we will calculate in this exercise. Curiously enough, MATLAB's way of finding limits eliminates some of the surprises that its way

Mohlenkamp, Martin J.

376

Notes for Presentations on Electricity for 3rd Grade The kits provided by the state for electricity do not, at all, explain anything about the  

E-Print Network (OSTI)

does wall­plug electricity come from? Use coil moving in magnet and hand­cranked generators (pass' styrofoam popcorn, styrofoam footstool; hand­cranked electric generators; mas­ sive coil­in­magnet generatorNotes for Presentations on Electricity for 3rd Grade Ray Frey The kits provided by the state

Frey, Raymond E.

377

Evaluation of weapons-grade mixed oxide fuel performance in U.S. Light Water Reactors using COMETHE 4D release 23 computer code  

E-Print Network (OSTI)

The COMETHE 4D Release 23 computer code was used to evaluate the thermal, chemical and mechanical performance of weapons-grade MOX fuel irradiated under U.S. light water reactor typical conditions. Comparisons were made to and UO? fuels exhibited...

Bellanger, Philippe

2012-06-07T23:59:59.000Z

378

Evaluation of the Cobas TaqMan MTB Test for the Detection of Mycobacterium tuberculosis Complex According to Acid-Fast Bacilli Smear Grades in Respiratory Specimens  

Science Journals Connector (OSTI)

...research-article Evaluation of the Cobas TaqMan MTB Test for the Detection of Mycobacterium tuberculosis...the performance of the Cobas TaqMan MTB Test (Roche Diagnostics, Basel, Switzerland...smear grades. The sensitivity of this test in smear-positive specimens was 95...

Hee Jae Huh; Won-Jung Koh; Dong Joon Song; Chang-Seok Ki; Nam Yong Lee

2014-11-26T23:59:59.000Z

379

Determinants of Human Papillomavirus Load among Women with Histological Cervical Intraepithelial Neoplasia 3: Dominant Impact of Surrounding Low-Grade Lesions  

Science Journals Connector (OSTI)

...analysis compared HPV load for different grades of...because we could not assess load stratified by the number...in Table 1 ). We used data from the poststudy review...thin-layer slides and viral load because of missing values...For improved statistical power, we combined the rare...

Mark E. Sherman; Sophia S. Wang; Cosette M. Wheeler; Laurie Rich; Patti E. Gravitt; Robert Tarone; and Mark Schiffman

2003-10-01T23:59:59.000Z

380

A.Y. Kim and E.A. Fitzgerald, MRS Symposia Proceedings 510 (1998) Page 1 ENGINEERING DISLOCATION DYNAMICS IN Inx(AlyGa1-y)1-xP GRADED BUFFERS  

E-Print Network (OSTI)

= 0.34 graded buffers with TDD = 5Ã?106 cm-2 and roughness = 15 nm and a simple optimization has optimization and the incorporation of aluminum for x > 0.20 to keep the graded buffer completely transparent reactor was used with trim

Note: This page contains sample records for the topic "grade propylene polymer-grade" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


381

Catalytic oxidation of propylene with air at temperatures near 500° FCatalytic oxidation of propylene with air at temperatures near 500°F?  

E-Print Network (OSTI)

(9 ), propane was relatively difficult to oxidise. Using an arbitrary scale where the ease of oxidation of pentane equals 1 , the following values were reported} ethane, 0 .0 0 1 1; propane, 0 .1 ; butane, 0 .5 ; hexane, 7 .5 * *hs numbers refer.... They reported a 15 percent conversion to acrolein and a U peroent conversion to carbon dioxide. This was the lowest temperature at which the oxidation was reported to have been accomplished, and it appeared that the work of the present thesis in the region...

Dunlop, Donald Dunwody

1953-01-01T23:59:59.000Z

382

Thermodynamic performance analysis of a combined power cycle using low grade heat source and LNG cold energy  

Science Journals Connector (OSTI)

Abstract Thermodynamic analysis of a combined cycle using a low grade heat source and LNG cold energy was carried out. The combined cycle consisted of an ammonia–water Rankine cycle with and without regeneration and a LNG Rankine cycle. A parametric study was conducted to examine the effects of the key parameters, such as ammonia mass fraction, turbine inlet pressure, condensation temperature. The effects of the ammonia mass fraction on the temperature distributions of the hot and cold streams in heat exchangers were also investigated. The characteristic diagram of the exergy efficiency and heat transfer capability was proposed to consider the system performance and expenditure of the heat exchangers simultaneously. The simulation showed that the system performance is influenced significantly by the parameters with the ammonia mass fraction having largest effect. The net work output of the ammonia–water cycle may have a peak value or increase monotonically with increasing ammonia mass fraction, which depends on turbine inlet pressure or condensation temperature. The exergy efficiency may decrease or increase or have a peak value with turbine inlet pressure depending on the ammonia mass fraction.

Kyoung Hoon Kim; Kyung Chun Kim

2014-01-01T23:59:59.000Z

383

Constant Load SCC Initiation Response of Alloy 22 (UNS N06022), Titanium Grade 7 and Stainless Steels at 105C  

SciTech Connect

This paper provides an update on research addressing the effects of material condition and applied stress on stress corrosion cracking (SCC) in waste package and drip shield materials for the Yucca Mountain Project. Time-to-failure experiments are being performed on smooth bar tensile specimens in a hot, concentrated, mixed-salt solution chosen to simulate concentrated Yucca Mountain water. The effects of applied stress, welding, surface finish, shot peening, cold work, crevicing, and aging treatment are being investigated for Alloy 22 (UNS N06022). Aging treatments were designed to produce topologically close-packed phases (TCP) and long-range ordering (LRO) and are under investigation as worse-case scenarios for possible microstructures in Alloy 22 (UNS N06022). Titanium Grade 7 and 3 16NG stainless steel are included in the matrix, as they are identified for drip shield and waste package components, respectively. Sensitized 304SS specimens are included in the test matrix to provide benchmark data. This research complements high-resolution crack-growth-rate experiments currently being performed in a parallel research project.

L.M. Young; G.M. Catlin; P.L. Andresen; G.M. Gordon

2002-10-10T23:59:59.000Z

384

Broadband antireflection and absorption enhancement of ultrathin silicon solar microcells enabled with density-graded surface nanostructures  

SciTech Connect

Density-graded surface nanostructures are implemented on ultrathin silicon solar microcells by silver-nanoparticle-catalyzed wet chemical etching to enable near-zero surface reflection over a broad wavelength range of incident solar spectrum as well as non-zeroth order diffraction and light trapping for longer wavelength photons, thereby achieving augmented photon absorption for ultrathin silicon microcells in a simple, cost-effective manner. The increase of absorbed photon flux through the “black silicon (b-Si)” surface translates directly into the corresponding enhancement of photovoltaic performance, where 5.7-?m b-Si microcells with the rational design of device configuration exhibit improved energy conversion efficiency by 148% and 50% with and without a diffuse backside reflector, respectively, compared to devices from the bare silicon without b-Si implementation. Systematic studies on nanostructured morphology, optical and electrical properties of b-Si microcells, together with semi-empirical numerical modeling of photon absorption, provide key aspects of underlying materials science and physics.

Chan, Lesley; Kang, Dongseok; Lee, Sung-Min; Li, Weigu; Hunter, Hajirah [Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90089 (United States); Yoon, Jongseung, E-mail: js.yoon@usc.edu [Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90089 (United States); Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089 (United States)

2014-06-02T23:59:59.000Z

385

PHASE ANALYSES OF URANIUM-BEARING MINERALS FROM THE HIGH GRADE ORE, NOPAL I, PENA BLANCA, MEXICO  

SciTech Connect

The Nopal I uranium deposit is located in the Pena Blanca district, approximately 40 miles north of Chihuahua City, Mexico. The deposit was formed by hydrothermal processes within the fracture zone of welded silicic volcanic tuff. The ages of volcanic formations are between 35 to 44 m.y. and there was secondary silicification of most of the formations. After the formation of at least part of the uranium deposit, the ore body was uplifted above the water table and is presently exposed at the surface. Detailed petrographic characterization, electron microprobe backscatter electron (BSE) imagery, and selected x-ray maps for the samples from Nopal I high-grade ore document different uranium phases in the ore. There are at least two stages of uranium precipitation. A small amount of uraninite is encapsulated in silica. Hexavalent uranium may also have been a primary precipitant. The uranium phases were precipitated along cleavages of feldspars, and along fractures in the tuff. Energy dispersive spectrometer data and x-ray maps suggest that the major uranium phases are uranophane and weeksite. Substitutions of Ca and K occur in both phases, implying that conditions were variable during the mineralization/alteration process, and that compositions of the original minerals have a major influence on later stage alteration. Continued study is needed to fully characterize uranium behavior in these semi-arid to arid conditions.

M. Ren; P. Goodell; A. Kelts; E.Y. Anthony; M. Fayek; C. Fan; C. Beshears

2005-07-11T23:59:59.000Z

386

Investigation of corrosion of commercial grade AISI 316L stainless steel liner plates in desalination plant conditions  

SciTech Connect

The corrosion of AISI Type 316L stainless steel (316L SS) liner plates in the flash chambers of a multistage flash (MSF) desalination plant, located on the Arabian Gulf coast was investigated. The 316L SS liner plates developed severe corrosion within six years of operation. This study was conducted to develop an understanding of the mode and causes of corrosion of the liner plates, and to determine the effect of heat treatment (annealing or heat effect during welding) and temperature of salt solution on corrosion of the liner plates. Specimens of the liner plates were studied in as-received (AR) condition and after being heat treated (HT) at 900 C in air and air-cooled to room temperature. Electrochemical techniques were used to measure the corrosion of the specimens. Scanning electron microscope (SEM) installed with energy dispersive (ED) X-ray diffraction capability was used for identification of compositional and structural changes in the specimens during heat treatment and corrosion. The results showed that: (1) Commercial grade 316L SS is susceptible to pitting, crevice and grain boundary corrosion under the operating conditions in the desalination plant. The heat-affected-zone (HAZ) had larger grains and corroded more severely than other parts of the liner plates. (2) The liner plates had randomly distributed inclusions containing Ti, Cr, Mo, Mn, and S in the structure. (3) Measurement of the corrosion rate. (4) Metallographic investigation of the AR and HT samples.

Saricimen, H.; Jarrah, N.R.; Allam, I.M. [King Fahd Univ. of Petroleum and Minerals, Dhahran (Saudi Arabia). Research Inst.

1994-12-31T23:59:59.000Z

387

Standard test method for determination of impurities in nuclear grade uranium compounds by inductively coupled plasma mass spectrometry  

E-Print Network (OSTI)

1.1 This test method covers the determination of 67 elements in uranium dioxide samples and nuclear grade uranium compounds and solutions without matrix separation by inductively coupled plasma mass spectrometry (ICP-MS). The elements are listed in Table 1. These elements can also be determined in uranyl nitrate hexahydrate (UNH), uranium hexafluoride (UF6), triuranium octoxide (U3O8) and uranium trioxide (UO3) if these compounds are treated and converted to the same uranium concentration solution. 1.2 The elements boron, sodium, silicon, phosphorus, potassium, calcium and iron can be determined using different techniques. The analyst's instrumentation will determine which procedure is chosen for the analysis. 1.3 The test method for technetium-99 is given in Annex A1. 1.4 The values stated in SI units are to be regarded as standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish ...

American Society for Testing and Materials. Philadelphia

2010-01-01T23:59:59.000Z

388

Standard specification for uranium oxides with a 235U content of less than 5 % for dissolution prior to conversion to nuclear-grade uranium dioxide  

E-Print Network (OSTI)

1.1 This specification covers uranium oxides, including processed byproducts or scrap material (powder, pellets, or pieces), that are intended for dissolution into uranyl nitrate solution meeting the requirements of Specification C788 prior to conversion into nuclear grade UO2 powder with a 235U content of less than 5 %. This specification defines the impurity and uranium isotope limits for such urania powders that are to be dissolved prior to processing to nuclear grade UO2 as defined in Specification C753. 1.2 This specification provides the nuclear industry with a general standard for such uranium oxide powders. It recognizes the diversity of conversion processes and the processes to which such powders are subsequently to be subjected (for instance, by solvent extraction). It is therefore anticipated that it may be necessary to include supplementary specification limits by agreement between the buyer and seller. 1.3 The scope of this specification does not comprehensively cover all provisions for prevent...

American Society for Testing and Materials. Philadelphia

2005-01-01T23:59:59.000Z

389

Characterization and response of newly developed high-grade glioma cultures to the tyrosine kinase inhibitors, erlotinib, gefitinib and imatinib  

SciTech Connect

High-grade gliomas (HGG), are the most common aggressive brain tumours in adults. Inhibitors targeting growth factor signalling pathways in glioma have shown a low clinical response rate. To accurately evaluate response to targeted therapies further in vitro studies are necessary. Growth factor pathway expression using epidermal growth factor receptor (EGFR), mutant EGFR (EGFRvIII), platelet derived growth factor receptor (PDGFR), C-Kit and C-Abl together with phosphatase and tensin homolog (PTEN) expression and downstream activation of AKT and phosphorylated ribosomal protein S6 (P70S6K) was analysed in 26 primary glioma cultures treated with the tyrosine kinase inhibitors (TKIs) erlotinib, gefitinib and imatinib. Response to TKIs was assessed using 50% inhibitory concentrations (IC{sub 50}). Response for each culture was compared with the EGFR/PDGFR immunocytochemical pathway profile using hierarchical cluster analysis (HCA) and principal component analysis (PCA). Erlotinib response was not strongly associated with high expression of the growth factor pathway components. PTEN expression did not correlate with response to any of the three TKIs. Increased EGFR expression was associated with gefitinib response; increased PDGFR-{alpha} expression was associated with imatinib response. The results of this in vitro study suggest gefitinib and imatinib may have therapeutic potential in HGG tumours with a corresponding growth factor receptor expression profile. -- Highlights: Black-Right-Pointing-Pointer Non-responders had low EGFR expression, high PDGFR-{beta}, and a low proliferation rate. Black-Right-Pointing-Pointer PTEN is not indicative of response to a TKI. Black-Right-Pointing-Pointer Erlotinib response was not associated with expression of the proteins examined. Black-Right-Pointing-Pointer Imatinib-response correlated with expression of PDGFR-{alpha}. Black-Right-Pointing-Pointer Gefitinib response correlated with increased expression of EGFR.

Kinsella, Paula, E-mail: paula.kinsella@dcu.ie [National Institute for Cellular Biotechnology, Dublin City University, Dublin 9 (Ireland)] [National Institute for Cellular Biotechnology, Dublin City University, Dublin 9 (Ireland); Howley, Rachel, E-mail: rhowley@rcsi.ie [Department of Neuropathology, Beaumont Hospital, Dublin 9 (Ireland)] [Department of Neuropathology, Beaumont Hospital, Dublin 9 (Ireland); Doolan, Padraig, E-mail: padraig.doolan@dcu.ie [National Institute for Cellular Biotechnology, Dublin City University, Dublin 9 (Ireland)] [National Institute for Cellular Biotechnology, Dublin City University, Dublin 9 (Ireland); Clarke, Colin, E-mail: colin.clarke@dcu.ie [National Institute for Cellular Biotechnology, Dublin City University, Dublin 9 (Ireland)] [National Institute for Cellular Biotechnology, Dublin City University, Dublin 9 (Ireland); Madden, Stephen F., E-mail: maddens@dcu.ie [National Institute for Cellular Biotechnology, Dublin City University, Dublin 9 (Ireland); Clynes, Martin, E-mail: Martin.Clynes@dcu.ie [National Institute for Cellular Biotechnology, Dublin City University, Dublin 9 (Ireland)] [National Institute for Cellular Biotechnology, Dublin City University, Dublin 9 (Ireland); Farrell, Michael, E-mail: michaelfarrell@beaumont.ie [Department of Neuropathology, Beaumont Hospital, Dublin 9 (Ireland)] [Department of Neuropathology, Beaumont Hospital, Dublin 9 (Ireland); Amberger-Murphy, Verena, E-mail: Verena.Murphy@icorg.ie [National Institute for Cellular Biotechnology, Dublin City University, Dublin 9 (Ireland) [National Institute for Cellular Biotechnology, Dublin City University, Dublin 9 (Ireland); All Ireland Co-operative, Oncology Research Group, 60 Fitzwilliam Square, Dublin 2 (Ireland)

2012-03-10T23:59:59.000Z

390

Validity of the Graded Prognostic Assessment-Derived Index to Predict Brain-Metastatic Patients' Survival After Gamma Knife Radiosurgery  

SciTech Connect

Purpose: To appraise whether the graded prognostic assessment (GPA)-derived index is valid for selecting patients with brain metastases for Gamma Knife (GK) radiosurgery. Methods and Materials: A total of 56 consecutive patients in recursive partioning analysis (RPA) Class I (n = 19, 34%) and II (n = 37, 66%) formed the basis of this retrospective study. Their mean age was of 57 years with mean Karnofsky performance score of 77. Primary cancers stemmed mainly from the lungs (59%). A total of 45 patients (80%) harbored multiple tumors. The mean clinical follow-up period was 9 months. Results: Kaplan-Meier analysis demonstrated that the overall median survival time (MST) for the whole series was 11.5 months: 16.5 vs. 6.5 months for RPA class I and II (p = 0.017). Multivariate Cox analysis revealed that female patients and a pre-GK good functional state were favorable prognostic factors. The favorable MST was in patients with a GPA score of 3 to 4 (17 months) followed by a GPA score of 2 to 2.5 (11 months) and GPA score 0 to 1.5 (6.5 months), but without statistical differences (p = 0.413) in between. A modified index (MGPA) is proposed with gender as a cofactor, then there existed a distinct survival differences (p = 0.028) between patients with an MGPA score of 3.5 to 5 (15 months) and with an MGPA score of 0 to 3 (7 months). In addition, the original GPA index failed to imply the difference of MST in patients with lung origin. Conclusions: The GPA-derived index is not applicable to our set of patients for comparing their survival after GK radiosurgery. The gender of the patients is a suggested cofactor to further refine the greater prognostic accuracy of the GPA index.

Chiou, Shang-Ming, E-mail: tsmchiou@pchome.com.t [Gamma Knife Center, Department of Neurosurgery, China Medical University Hospital, Taichung, Taiwan (China)

2010-11-15T23:59:59.000Z

391

Uncertainty evaluation of reliability of safety grade decay heat removal system of Indian prototype fast breeder reactor  

Science Journals Connector (OSTI)

Abstract Deterministic and probabilistic safety assessment of nuclear power reactor technology is very important in assuring that the design is robust and safety systems perform as per requirement. The parameters required as input data for such analysis have uncertainties associated with them. Their impact is to be assessed on the results obtained for such analyses and it affects the overall decision making process. Safety Grade Decay Heat Removal System (SGDHRS) is one of the safety systems in fast breeder reactors and itremoves decay heat after reactor shutdown. It is a critical safety system; hence failure frequency for SGDHR is targeted to be less than 1.0 × 10?7 per reactor year. By bringing diversity in some of the components of SGDHRS, such as sodium-to-sodium decay heat exchanger (DHX), sodium to air heat exchanger (AHX) and valves, one can achieve the targeted low failure frequency of SGDHRS. We perform uncertainty analysis of the reliability of such SGDHRS here. Uncertainty in failure rate (of components of SGDHRS) is assumed to follow the log-normal distribution with error factor of three. Monte Carlo method of sampling is used in MATLAB environment. Results are obtained in terms of mean, median and standard deviation values of failure frequency. Percentile and confidence interval analysis of mean values are also obtained. These provide 95 and 98 percentile and confidence interval values of 98%, 99% and 99.8%. It is found that error factor of failure frequency of SGDHRS is found to be less than 3 in all the cases except the one in which DHX, AHX and Valves are designed with diversity in design. It is to be noted here that error factor of all input parameters distribution is taken as 3.

H.L. Kumawat; Om Pal Singh; Prabhat Munshi

2013-01-01T23:59:59.000Z

392

Mechanics of graded wrinkling  

E-Print Network (OSTI)

The properties of a surface depend on the inherent material and the surface topography. Nature uses surface texture as a means to impact different surface behavior such as cleanliness, adhesion control, drag reduction, ...

Raayai Ardakani, Shabnam

2013-01-01T23:59:59.000Z

393

Commercial Grade Dedication Guidance  

Office of Environmental Management (EM)

operating system identifier Vendor name, operating system version, service packs or patch identifiers that are needed for the computer program to be executed. This critical...

394

Grade level: General Public  

E-Print Network (OSTI)

) -- to the discovery of her "birthday star" that led her to become an astronomer and build her own mountain on the Moon, future missions to Mars, Hubble Space Telescope studies of Jupiter, and the glorious rings frames in this show. The glare of city streetlights washes out the faint stars ... Earth and Space

Mathis, Wayne N.

395

Marketing eggs on grade  

E-Print Network (OSTI)

(cain and Piercer ggz ~, , page 194 20 Million Dozen 10 Jan. Feb, Mar, Apr, May June July Aug, Sept, Oct, Nov, Dec, Figure 2 ~ Monthly Distribution of Egg Production in the United States, (Sources Merrill Lynch, Pierce, Fenner~ and Scene, Eggs, pd...(cain and Piercer ggz ~, , page 194 20 Million Dozen 10 Jan. Feb, Mar, Apr, May June July Aug, Sept, Oct, Nov, Dec, Figure 2 ~ Monthly Distribution of Egg Production in the United States, (Sources Merrill Lynch, Pierce, Fenner~ and Scene, Eggs, pd...

Wischkaemper, Theodore Frederick Paul

2012-06-07T23:59:59.000Z

396

DEVELOPMENT OF AN EMAT IN-LINE INSPECTION SYSTEM FOR DETECTION, DISCRIMINATION, AND GRADING OF STRESS CORROSION CRACKING IN PIPELINES  

SciTech Connect

This report describes prototypes, measurements, and results for a project to develop a prototype pipeline in-line inspection (ILI) tool that uses electromagnetic acoustic transducers (EMATs) to detect and grade stress corrosion cracking (SCC). The introduction briefly provides motivation and describes SCC, gives some background on EMATs and guided ultrasonic waves, and reviews promising results of a previous project using EMATs for SCC. The experimental section then describes lab measurement techniques and equipment, the lab mouse and prototypes for a mule, and scan measurements made on SCC. The mouse was a moveable and compact EMAT setup. The prototypes were even more compact circuits intended to be pulled or used in an ILI tool. The purpose of the measurements was to determine the best modes, transduction, and processing to use, to characterize the transducers, and to prove EMATs and mule components could produce useful results. Next, the results section summarizes the measurements and describes the mouse scans, processing, prototype circuit operating parameters, and performance for SH0 scans. Results are given in terms of specifications--like SNR, power, insertion loss--and parametric curves--such as signal amplitude versus magnetic bias or standoff, reflection or transmission coefficients versus crack depth. Initially, lab results indicated magnetostrictive transducers using both SH0 and SV1 modes would be worthwhile to pursue in a practical ILI system. However, work with mule components showed that SV1 would be too dispersive, so SV1 was abandoned. The results showed that reflection measurements, when normalized by the direct arrival are sensitive to and correlated with SCC. This was not true for transmission measurements. Processing yields a high data reduction, almost 60 to 1, and permits A and C scan display techniques and software already in use for pipeline inspection. An analysis of actual SH0 scan results for SCC of known dimensions showed that length and depth could be determined for deep enough cracks. Defect shadow and short length effects were apparent but may be taken into account. The SH0 scan was done with the mule prototype circuits and permanent magnet EMATs. These gave good enough results that this hardware and the processing techniques are very encouraging for use in a practical ILI tool.

Jeff Aron; Jeff Jia; Bruce Vance; Wen Chang; Raymond Pohler; Jon Gore; Stuart Eaton; Adrian Bowles; Tim Jarman

2005-02-01T23:59:59.000Z

397

Establishment of a laboratory mix-design method for open-graded friction courses using sulfur-extended asphalt (SEA) binders  

E-Print Network (OSTI)

which varied from dense asphaltic concrete to porous surface courses. The con- clusions included the following: l. The durabil1ty of porous fr1ction courses was very dependent on the type of binder used. 2. The sections with 200 pen bitumen gave...ESTABLISHMENT OF A LABORATORY MIX-DESIGN METHOD FOR OPEN-GRADED FRICTION COURSES USING SULFUR-EXTENDED ASPHALT (SEA) BINDERS A Thesis by KEE-KWONG HO Submitted to the Graduate College of Texas A&M University in partial fulfillment...

Ho, Kee-Kwong

1981-01-01T23:59:59.000Z

398

Systematic Classroom Observation of the Quality of Teacher Behaviors and Student Engagement in Ethnically Diverse Pre-Kindergarten Through Second-Grade Classrooms  

E-Print Network (OSTI)

ABSTRACT Systematic Classroom Observation of the Quality of Teacher Behaviors and Student Engagement in Ethnically Diverse Pre-Kindergarten Through Second-Grade Classrooms. (May 2011) Beverly Lynn Alford, B.S., Texas A&M University; M.Ed., University... findings showed that: (a) students taught by teachers rated as having a higher developmentally appropriate instructional practices (DAIP) score were more likely to be on-task and less likely to be off-task; (b) students taught by teachers with a higher...

Alford, Beverly Lynn

2012-07-16T23:59:59.000Z

399

Analysis of Third- and Fifth-Grade Spelling Errors on the Test of Written Spelling-4: Do Error Types Indicate Levels of Linguistic Knowledge?  

E-Print Network (OSTI)

pronounceable patterns and were able to show that children in grades kindergarten through second were able to pick out non-words that looked more like real words based on their orthographic patterns. For example, fubb looks more like a real word than ffub.... Cassar and Treiman (1997) tested students’ knowledge of double letters and found that as early as kindergarten, children were able to use conventional rules of letter position. They identified non-words as being closer to “real words” when the double...

Conway, Barbara Tenney

2012-10-19T23:59:59.000Z

400

Gain uniformity of InP/InGaAsP/InGaAs avalanche photodiodes with separate absorption, grading, and multiplication regions  

SciTech Connect

We report on the spatial uniformity of the gain M of InP/ InGaAsP/InGaAs avalanche photodiodes with separate absorption, grading, and multiplication regions (SAGM-APD's). Typically, these APD's exhibit less than 10 percent variation in the gain (for M less than or equal to 10) over the entire photosensitive area. The small nonuniformity which is observed shows a one-to-one correspondence with inhomogeneities in the epitaxial layers of the SAGM-APD structure. We also observe a reduction in the effective photosensitive diameter with increasing bias voltage.

Holden, W.S.; Campbell, J.C.; Dental, A.G.

1985-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

Frequency response of InP/InGaAsP/InGaAs avalanche photodiodes with separate absorption ''grading'' and multiplication regions  

SciTech Connect

We have measured the frequency response of InP/ InGaAsP/InGaAs photodiodes with separate absorption, ''grading,'' and multiplication regions (SAGM-APD's) for a wide range (2 less than or equal to M/sub 0/ less than or equal to 35) of dc gains. The results are explained in terms of a theoretical model which incorporates the transit time of carriers through the depletion region, the RC time constant, the accumulation of holes at the valence band discontinuity of the heterojunction interfaces, and the gainbandwidth limit.

Campbell, J.C.; Dentai, A.G.; Holden, W.S.; Qua, G.J.

1985-11-01T23:59:59.000Z

402

Oxidation of propylene in the presence of catalysts containing copper compounds  

E-Print Network (OSTI)

of the very significant effect of temperature on catalytic activity, it seems appar? ent that energy transfer sometimes can be of extreme impor? tance, particularly in cases involving highly exothermic reactionso In these cases, failure to remove energy... of control of temperature that exothermic reactions produce? Catalyst behavior has been shown to depend upon many factors other than the chemical nature of the catalytically active agent? Factors such as surface area, crystalling structure, the physical...

Woodham, John Frank

1959-01-01T23:59:59.000Z

403

Recovery of propylene glycol from dilute aqueous solutions by reversible chemical complexation with organoboronates  

SciTech Connect

Extractants consisting of an ion-pair of Aliquat 336 with phenylboronate or 3-nitrophenylboronate were prepared in various diluents (2-ethylhexanol, toluene, o-xylene or diisobutylketone). In batch experiments propyleneglycol (1,2-PD) was effectively extracted even at low concentrations. Heterogeneous complexation constants {beta}{sub 11} calculated at 25 C were 45-120 (mol/1){sup {minus}1} in 2-ethylhexanol, 34.8 (mol/l){sup {minus}1} in toluene, 37.6 (mol/l){sup {minus}1} in o-xylene and 14.4 (mol/l){sup {minus}1} in diisobutylketone. In 2-ethythexanol, there was no significant effect of extractant concentration on the complexation constant. Equilibrium water concentration in the extractants was 8-12 wt %, decreasing with 1,2-PD uptake. Nearly all extractant/diluent systems exhibited overloading (more than stoichiometric uptake of 1,2-PD). Evidence for aggregation of the ion-pair extractant in organic phase was found from water solubilization studies (molar solubilization ratios up to 10) and {sup 1}H NMR spectroscopy studies. Solubilization of 1,2-PD within hydrophilic aggregate interiors may explain the observed overloading. The complexation constant decreased with increasing temperature, but not enough to make back extraction after a temperature change attractive. Back extraction may be achieved after acidification with carbon dioxide to convert the organoboronate anion to the corresponding organoboronic acid. Up to 80% of the extracted 1,2-PD was backextracted in a batch extraction using C0{sub 2}. The extractant could then be regenerated by stripping carbon dioxide from solution at temperatures exceeding 110 C. However, at these temperatures the extractant appears to undergo a transformation in which color changes and extraction capacity is reduced to about 60% of original value.

Broekhuis, R.R.; Lynn, S.; King, C.J.

1995-05-01T23:59:59.000Z

404

Gas Chromatographic Determination of the Products from the Catalytic Oxidation of Propylene to Acrolein  

Science Journals Connector (OSTI)

......chromatograph: (1) The palladium cathode is the source and means of controlling...volume connected between the cathode and the column and with a single...comparison with that of the more active standard support materials probably used in the experiments......

L. A. Th. Verhaar; S. P. Lankhuijzen

1970-08-01T23:59:59.000Z

405

Ex Situ Solvent-Assisted Preparation of Magnetic Poly(propylene) Nanocomposites  

E-Print Network (OSTI)

inthepastfewyearsfortheirdiverseapplicationsincluding as sensors,[1­4] for biomedical drug delivery,[5] environ- mental remediation,[6 catalysts can be easily deactivated by the presence of Lewis bases or water.[31] In addition, the post facile engineering alternative. PNCs prepared by such a method are usually produced by the dispersion

Guo, John Zhanhu

406

Microwave Enhanced Direct Cracking of Hydrocarbon Feedstock for Energy Efficient Production of Ethylene and Propylene.  

SciTech Connect

This project demonstrated microwave cracking of ethane with good product conversion and ethylene selectivity, with a short residence time ({approx}0.001 sec). The laboratory scale equipment was designed and built, along with concept designs for larger scale implementation. The system was operated below atmospheric pressures, in the range of 15-55 torr, with argon as a carrier gas. The measured products included hydrogen, methane, acetylene, and ethylene. The results followed similar trends to those predicted by the modeling software SPYRO{reg_sign}, with the exception that the microwave appeared to produce slightly lower amounts of ethylene and methane, although enhanced analytical analysis should reduce the difference. Continued testing will be required to verify these results and quantify the energy consumption of microwave vs. conventional. The microwave cracking process is an attractive option due to the possibility of selectively heating the reaction volume rather than the reactor walls, which may allow novel reactor designs that result in more efficient production of ethylene. Supplemental studies are needed to continue the laboratory testing and refine processing parameters.

Shulman, Holly; Fall, Morgana; Wagner, Eric; Bowlin, Ricardo

2012-02-13T23:59:59.000Z

407

Propylene/Propane Separation with a Gas/Liquid Membrane Contactor Using a Silver Salt Solution  

Science Journals Connector (OSTI)

Pavan Chilukuri ,† Karlijn Rademakers ,† Kitty Nymeijer ,‡ Louis van der Ham ,† and Henk van den Berg *† ...

Pavan Chilukuri; Karlijn Rademakers; Kitty Nymeijer; Louis van der Ham; Henk van den Berg

2007-08-30T23:59:59.000Z

408

ELECTROCHEMICAL STUDIES OF THE FILM FORMATION ON LITHIUM IN PROPYLENE CARBONATE SOLUTIONS UNDER OPEN CIRCUIT CONDITIONS  

E-Print Network (OSTI)

lxlo- 10 Figure Captions Fig. 1 Tafel plots at constant filmbetween film thickness Y and Tafel slope b. (XBL8012-13349) Fig. 3 Tafel plots, log i vs E, in different

Geronov, Y.

2014-01-01T23:59:59.000Z

409

ELECTROCHEMICAL STUDIES OF THE FILM FORMATION ON LITHIUM IN PROPYLENE CARBONATE SOLUTIONS UNDER OPEN CIRCUIT CONDITIONS  

E-Print Network (OSTI)

Experimental and Theoretical Tafel Slopes y A bexp mVL iC10 4 + 0.1% H 0. Fig. 7 Tafel plots, log i vs E, for: A-dealing with the dual Tafel behavior of Li in PC solutions

Geronov, Y.

2014-01-01T23:59:59.000Z

410

ELECTROCHEMICAL STUDIES OF THE FILM FORMATION ON LITHIUM IN PROPYLENE CARBONATE SOLUTIONS UNDER OPEN CIRCUIT CONDITIONS  

E-Print Network (OSTI)

Experimental and Theoretical Tafel Slopes y bexp btheor. =between film thickness Y and Tafel slope b. (XBL8012- Fig. 4 - Tafel plots, log i vs. E, in different

Geronov, Y.

2014-01-01T23:59:59.000Z

411

FILM FORMATION ON LITHIUM IN PROPYLENE CARBONATE SOLUTIONS UNDER OPEN CIRCUIT CONDITIONS  

E-Print Network (OSTI)

Experimental and Theoretical Tafel Slopes Y b exp b theor. Aorder to lOllS with the dual Tafel behavior of their ion offilm thickness, and a Tafel- like polarization dependence is

Geronov, Y.

2011-01-01T23:59:59.000Z

412

Comparison of Water Scrubbing and Propylene Carbonate Absorption for Biogas Upgrading Process  

Science Journals Connector (OSTI)

(11) After removal of CO2 and other impurities, the final product, biomethane, typically containing 97–99% CH4 and 1–3% CO2, can be used as an alternative for natural gas. ... Ryckebosch, E.; Drouillon, M.; Veruaeren, H.Techniques for transformation of biogas to biomethane Biomass Bioenergy 2011, 35, 1633– 1645 ... Techniques for transformation of biogas to biomethane ...

Hong Nie; Hao Jiang; Daowen Chong; Quangui Wu; Chunming Xu; Hongjun Zhou

2013-05-13T23:59:59.000Z

413

R.E.A.C.T. - Renewable Energy Activities - Choices for Tomorrow - Teacher's Activity Guide for Middle Level Grades 6-8  

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

E.A.C.T. E.A.C.T. Renewable Energy Activities - Choices for Tomorrow Teacher's Activity Guide for Middle Level Grades 6-8 National Renewable Energy Laboratory Education Programs 1617 Cole Blvd. Golden, Colorado 80401 Tel: (303) 275-3044 Home page: http://www.nrel.gov ACKNOWLEDGMENTS The Education Office at NREL would like to thank Dr. James Schreck, Professor of Chemistry and Biochemistry, University of Northern Colorado, for his commitment and hard work in the development of this activity booklet. His expertise was invaluable in producing a final product that attempts to be "user friendly." It is the goal of the Education Office to make these kits accessible, easy to use, and fun. We want your students to gain, not only an understanding of renewable and nonrenewable energy resources, but a

414

Utilization of Cs{sup 137} to generate a radiation barrier for weapons grade plutonium immobilized in borosilicate glass canisters. Revision 1  

SciTech Connect

One of the ways recommended by a recent National Academy of Sciences study to dispose of excess weapons-grade plutonium is to encapsulate the plutonium in a glass in combination with high-level radioactive wastes (HLW) to generate an intense radiation dose rate field. The objective is to render the plutonium as difficult to access as the plutonium contained in existing US commercial spent light-water reactor (LWR) fuel until it can be disposed of in a permanent geological repository. A radiation dose rate from a sealed canister of 1,000 rem/h (10 Sv/h) at 1 meter for at least 30 years after fabrication was assumed in this paper to be a radiation dose comparable to spent LWR fuel. This can be achieved by encapsulating the plutonium in a borosilicate glass with an adequate amount of a single fission product in the HLWS, namely radioactive Cs{sup 137}. One hundred thousand curies of Cs{sup 137} will generate a dose rate of 1,000 rem/h (10 Sv/h) at 1 meter for at least 30 years when imbedded into canisters of the size proposed for the Savannah River Site`s vitrified high-level wastes. The United States has a current inventory of 54 MCi of CS{sup 137} that has been separated from defense HLWs and is in sealed capsules. This single curie inventory is sufficient to spike 50 metric tons of excess weapons-grade plutonium if plutonium can be loaded at 5.5 wt% in glass, or 540 canisters. Additional CS{sup 137} inventories exist in the United States` HLWs from past reprocessing operations, should additional curies be required. Using only one fission product, CS{sup 137}, rather than the multiple chemical elements and compounds in HLWs to generate a high radiation dose rate from a glass canister greatly simplifies the processing engineering retirement for encapsulating plutonium in a borosilicate glass.

Jardine, L.J.; Armantrout, G.A.; Collins, L.F.

1995-01-01T23:59:59.000Z

415

Separation Processes, Second Edition  

E-Print Network (OSTI)

X-k The existing propylene-propane distillation facilitiesdesigns for propylene-propane distillation and for methanol-product. In a distillation, propylene is the most volatile

King, C. Judson

1980-01-01T23:59:59.000Z

416

Oxygen-Free Propane Oxidative Dehydrogenation Over Vanadium Oxide Catalysts: Reactivity and Kinetic Modelling.  

E-Print Network (OSTI)

??Propane conversion to propylene has been the subject of intensive researches. This is due to the increasing demand for propylene. Current propylene production processes suffer… (more)

Al-Ghamdi, Sameer Ali

2013-01-01T23:59:59.000Z

417

Standard test methods for chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade aluminum oxide and aluminum oxide-boron carbide composite pellets  

E-Print Network (OSTI)

1.1 These test methods cover procedures for the chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade aluminum oxide and aluminum oxide-boron carbide composite pellets to determine compliance with specifications. 1.2 The analytical procedures appear in the following order: Sections Boron by Titrimetry 7 to 13 Separation of Boron for Mass Spectrometry 14 to 19 Isotopic Composition by Mass Spectrometry 20 to 23 Separation of Halides by Pyrohydrolysis 24 to 27 Fluoride by Ion-Selective Electrode 28 to 30 Chloride, Bromide, and Iodide by Amperometric Microtitrimetry 31 to 33 Trace Elements by Emission Spectroscopy 34 to 46 1.3 The values stated in SI units are to be regarded as the standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (F...

American Society for Testing and Materials. Philadelphia

1994-01-01T23:59:59.000Z

418

Standard test method for analysis of isotopic composition of uranium in nuclear-grade fuel material by quadrupole inductively coupled plasma-mass spectrometry  

E-Print Network (OSTI)

1.1 This test method is applicable to the determination of the isotopic composition of uranium (U) in nuclear-grade fuel material. The following isotopic weight percentages are determined using a quadrupole inductively coupled plasma-mass spectrometer (Q-ICP-MS): 233U, 234U, 235U, 236U, and 238U. The analysis can be performed on various material matrices after acid dissolution and sample dilution into water or dilute nitric (HNO3) acid. These materials include: fuel product, uranium oxide, uranium oxide alloys, uranyl nitrate (UNH) crystals, and solutions. The sample preparation discussed in this test method focuses on fuel product material but may be used for uranium oxide or a uranium oxide alloy. Other preparation techniques may be used and some references are given. Purification of the uranium by anion-exchange extraction is not required for this test method, as it is required by other test methods such as radiochemistry and thermal ionization mass spectroscopy (TIMS). This test method is also described i...

American Society for Testing and Materials. Philadelphia

2000-01-01T23:59:59.000Z

419

Innovations in the Assay of Un-Segregated Multi-Isotopic Grade TRU Waste Boxes with SuperHENC and FRAM Technology  

SciTech Connect

The Super High Efficiency Neutron Coincidence Counter (SuperHENC) was originally developed by BIL Solutions Inc., Los Alamos National Laboratory (LANL) and Rocky Flats Environmental Technology Site (RFETS) for assay of transuranic (TRU) waste in Standard Waste Boxes (SWB) at Rocky Flats. This mobile system was a key component in the shipment of over 4,000 SWBs to the Waste Isolation Pilot Plant (WIPP) in Carlsbad, New Mexico. The system was WIPP certified in 2001 and operated at the site for four years. The success of this system, a passive neutron coincidence counter combined with high resolution gamma spectroscopy, led to the order of two new units, delivered to Hanford in 2004. Several new challenges were faced at Hanford: For example, the original RFETS system was calibrated for segregated waste streams such that metals, plastics, wet combustibles and dry combustibles were separated by 'Item Description Codes' prior to assay. Furthermore, the RFETS mission of handling only weapons grade plutonium, enabled the original SuperHENC to benefit from the use of known Pu isotopics. Operations at Hanford, as with most other DOE sites, generate un-segregated waste streams, with a wide diversity of Pu isotopics. Consequently, the new SuperHENCs are required to deal with new technical challenges. The neutron system's software and calibration methodology have been modified to encompass these new requirements. In addition, PC-FRAM software has been added to the gamma system, providing a robust isotopic measurement capability. Finally a new software package has been developed that integrates the neutron and gamma data to provide a final assay results and analysis report. The new system's performance has been rigorously tested and validated against WIPP quality requirements. These modifications, together with the mobile platform, make the new SuperHENC far more versatile in handling diverse waste streams and allow for rapid redeployment around the DOE complex. (authors)

Simpson, A. P.; Barber, S. [BIL Solutions Inc., 4001 Office Court Drive no 800, Santa Fe, NM 87507 (United States); Abdurrahman, N. M. [Fluor Hanford, PO Box 1000, Mail Stop T4-52, Richland, WA 99352 (United States)

2006-07-01T23:59:59.000Z

420

Educational Product Educators Grades 58  

E-Print Network (OSTI)

Program Scientist for NASA TRMM Editorial Assistance, Dan Stillman, Science Communications Specialist of the series"Investigating the Climate System."The series includes five modules: Clouds, Energy, Precipitation,Weather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Student Weather Intern Training Activities . . . . . . . . . . . . . . . . . . . . 4 Activity One

Waliser, Duane E.

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

Propane (Consumer Grade) Prices - Industrial  

Gasoline and Diesel Fuel Update (EIA)

23 1.706 1.880 - - - 1994-2013 East Coast (PADD 1) 2.216 1.686 1.945 - - - 1994-2013 New England (PADD 1A) 2.355 1.765 1.954 - - - 1994-2013 Central Atlantic (PADD 1B) 2.321 1.760...

422

Mentos Lesson Grades 4 -8  

E-Print Network (OSTI)

Diet Coke Mentos x 2 tablet Balloons Beakers Tarp Container for water Note: Experiment is best the balloon is gas. The balloon example will be used as an analogy for the vessel containing Diet Coke. To prove that gas is in the Diet Coke; we will shake a bottle of Diet Coke and loosen the top allowing

423

Graded Security Protection (GSP) Policy  

Directives, Delegations, and Requirements

This Order is classified as (Secret // RD // NOFORN) and will not be available on the Directives portal. For distribution, contact Gary White, 301-903-6874, email: gary.whitejr@hq.doe.gov. Cancels DOE O 470.3A. Certified 5-10-11.

2008-08-12T23:59:59.000Z

424

Towards carrier grade linux platforms  

Science Journals Connector (OSTI)

Traditionally, communications and data service networks were built on proprietary platforms that had to meet very specific availability, reliability, performance, and service response time requirements. Today, communications service providers are challenged ...

Ibrahim Haddad

2004-06-01T23:59:59.000Z

425

Energy grades and economic growth  

SciTech Connect

In 1709 William Darby invented the coking process that led to the use of coal in eighteenth century England. From an economic standpoint, one could say that this event more than any other ushered in the industrial revolution with its dependence on coal and steel produced with coal. However, from an engineering perspective, there is another cause of the industrial revolution that is more subtle-the physical makeup of the energy resources available to England. According to Simon Kuznets, an economic epoch, i.e., a period of time defined by rapid population increase for a given region, {open_quotes}is determined and shaped by the application and ramification of an {open_quote}epochal{close_quote} innovation{close_quotes}, in other words, new significant technologies.

Reynolds, D.B.

1994-12-31T23:59:59.000Z

426

Synthesis of Pt?Pd Core?Shell Nanostructures by Atomic Layer Deposition: Application in Propane Oxidative Dehydrogenation to Propylene  

SciTech Connect

Atomic layer deposition (ALD) was employed to synthesize supported Pt?Pd bimetallic particles in the 1 to 2 nm range. The metal loading and composition of the supported Pt?Pd nanoparticles were controlled by varying the deposition temperature and by applying ALD metal oxide coatings to modify the support surface chemistry. Highresolution scanning transmission electron microscopy images showed monodispersed Pt?Pd nanoparticles on ALD Al2O3 - and TiO2 -modi?ed SiO2 gel. X-ray absorption spectroscopy revealed that the bimetallic nanoparticles have a stable Pt-core, Pd-shell nanostructure. Density functional theory calculations revealed that the most stable surface con?guration for the Pt? Pd alloys in an H2 environment has a Pt-core, Pd-shell nanostructure. In comparison to their monometallic counterparts, the small Pt?Pd bimetallic core?shell nanoparticles exhibited higher activity in propane oxidative dehydrogenation as compared to their physical mixture.

Lei, Y.; Liu, Bin; Lu, Junling; Lobo-Lapidus, Rodrigo J.; Wu, Tianpin; Feng, Hao; Xia, Xiaoxing; Mane, Anil U.; Libera, Joseph A.; Greeley, Jeffrey P.; Miller, Jeffrey T.; Elam, J. W.

2012-08-20T23:59:59.000Z

427

Performance improvement of phenyl acetate as propylene carbonate-based electrolyte additive for lithium ion battery by fluorine-substituting  

Science Journals Connector (OSTI)

Abstract Phenyl acetate (PA) is more stable and much cheaper than vinylene carbonate (VC), a commercial electrolyte additive for graphite anode of lithium ion battery, but its performance needs to be improved. In this paper, we report a new additive, 4-fluorophenyl acetate (4-FPA), which results from the fluorine-substituting of PA. The properties of the formed solid electrolyte interphase (SEI) by 4-FPA are investigated comparatively with PA by molecular energy level calculation, cyclic voltammetry, charge–discharge test, scanning electron microscopy, energy dispersive X-ray spectroscopy, and Fourier transform infrared spectroscopy. It is found that the SEI formed by 4-FPA is more protective than PA, resulting in the improved cyclic stability of lithium ion battery: the capacity retention of LiFePO4/graphite cell after 90 cycles is 92% for 4-FPA but only 84% for PA. The fluorine in 4-FPA makes it more reducible than PA and the fluorine-containing reduction products of 4-FPA are incorporated into the SEI, which contributes to the improved performance.

Bin Li; Yaqiong Wang; Haibin Lin; Xianshu Wang; Mengqing Xu; Yating Wang; Lidan Xing; Weishan Li

2014-01-01T23:59:59.000Z

428

*At least one of these courses must be at the 3000-4000 level. NOTES: A grade of "C" or better in gate courses (indicated in italicized type) is required for enrollment in upper division courses offered by the Department of Industrial and  

E-Print Network (OSTI)

*At least one of these courses must be at the 3000-4000 level. NOTES: A grade of "C" or better to Manufacturing (AREA VII) 3 ______ ______ MATH 1220 Calculus I (or Math 1700) (Prof. 4) 4 16 SEMESTER II - SPRING ______ ______ CHEM 1100 General Chemistry I (AREA VI) 3 ______ ______ CHEM 1110 General Chemistry I Lab (AREA VI) 1

de Doncker, Elise

429

*At least one of these courses must be at the 3000-4000 level. NOTES: A grade of "C" or better in gate courses (indicated in italicized type) as well as a 2.3 GPA at WMU are required for enrollment in upper division courses offered by the  

E-Print Network (OSTI)

*At least one of these courses must be at the 3000-4000 level. NOTES: A grade of "C" or better to Manufacturing (AREA VII) 3 ______ ______ MATH 1180 Precalculus Mathematics (Prof. 3) 4 ______ ______ AREA VIII Health and Well-Being 2 15 SEMESTER II - SPRING ______ ______ CHEM 1100 General Chemistry I (AREA VI) 3

de Doncker, Elise

430

'Civil' nuclear programme – serving the dual objectives of retaining the state's hegemony on citizens' basic energy needs and assuring supply of weapon grade ingredients: a case study on India  

Science Journals Connector (OSTI)

Political leaders of ambitious emerging economies of India and China, where the state has not yet reached the maturity stage, prefer nuclear power to other alternative energy sources, as it serves the dual purpose of retaining the state's hegemony on citizens' basic energy needs and assures supply of weapon grade ingredients. In contrast to North America and most of Western Europe, where growth of nuclear power has levelled out for many years, the 'greatest growth in nuclear generation' in the near future is expected in China, Japan, South Korea and India. It would be naive to believe that the political establishments are not aware of the negative consequences of nuclear power. The question may then arise as to why have the emerging economies of India, China, Brazil, etc., aligned themselves with the nuclear establishment without fully exploiting other alternative energy sources? Taking India as a case, this paper analyses secondary data and findings of various previous studies to explore an answer to this question.

Dipankar Dey

2010-01-01T23:59:59.000Z

431

Facilitated transport membrane hybrid systems for olefin purification  

SciTech Connect

A new membrane system has been developed by BP for refinery and chemical plant olefin purification and recovery. This facilitated transport system, coupled with distillation, offers lower capital and operating costs than conventional distillation alone. Initial results on lab scale hollow fiber devices indicate membrane flux ranging from 8.75 {times} 10{sup {minus}6} to 8 {times} 10{sup {minus}5} m{sup 3}/m{sup 2}/sec (2.5 to 23 scfd/ft{sub 2}) and selectivities from 150 to 300. Pilot plant experiments on propylene/propane and ethylene purge gas recovery over three to six months duration show membrane stability and product purity of 98.5% or greater using refinery grade propylene feed. Hybrid system optimization data for membranes and distillation indicate that using a side draw from the distillation tower provides advantages in terms of membrane area, purity of feed to the membrane, and low per-pass recovery coupled with high overall propylene recovery. Membrane performance data under various conditions are also presented. In addition to performance data, economic evaluation and energy savings are discussed.

Davis, J.C.; Valus, R.J.; Eshraghi, R.; Velikoff, A.E. [BP Research, Cleveland, OH (United States)

1993-01-01T23:59:59.000Z

432

Field demonstration of aviation turbine fuel MIL-T-83133C, grade JP-8 (NATO code F-34) at Fort Bliss, TX. Interim report 1 Feb 89-31 Jul 90  

SciTech Connect

A JP-8 fuel demonstration was initiated at Ft. Bliss, TX, to demonstrate the impact of using aviation turbine fuel MIL-T-83133C, grade JP-8 in all military diesel fuel-consuming ground vehicles and equipment. Three major organizations, one ordnance battalion and two activities with a total of 2807 vehicles/equipment (V/E), were identified as participants in the demonstration program, which is authorized to continue through 30 September 1991. No fuel storage tank or V/E fuel cells were drained and flushed prior to introduction of JP-8 fuel. This procedure resulted in a commingling of JP-8 fuel with existing diesel fuel. As of 31 July 1990 approximately 4,700,000 gallons of JP-8 fuel had been dispensed to user units at Ft. Bliss and at Ft. Irwin National Training Center (NTC) in California. Three areas of concern arose from the beginning of the program: (1) plugging of fuel filters, (2) loss of power, and (3) overheating. The use of JP-8 fuel did not cause or exacerbate any V/E fuel filter plugging. Where power loss was apparent, generally it was commensurate with the difference in heating values between JP-8 and diesel fuel. The V/E at Ft. Bliss operated satisfactorily with the JP-8 fuel with no alterations, mechanical or otherwise, having to be made to any engines or fuel systems. There were no major differences in fuel procurement costs, V/E fuel consumption, AOAP-directed oil changes, and fuel-wetted component replacements.

Butler, W.E.; Alvarez, R.A.; Yost, D.M.; Westbrook, S.R.; Buckingham, J.P.

1990-12-01T23:59:59.000Z

433

Grading scheme / Labs and assignments Course syllabus  

E-Print Network (OSTI)

or 301: Fundamentals of Engineering Economic Evaluation ­ STAT 235: Fundamentals of Probability Description: Fundamentals of economic evaluation. Cost estimation, commodity price modelling and revenue, Canadian Mining Taxation; (c) Price Waterhouse, Toronto, Ontario. ­ Rudenno V,The Mining Valuation Handbook

Boisvert, Jeff

434

Retail Prices for Gasoline, All Grades  

Annual Energy Outlook 2012 (EIA)

8 2.907 2.864 2.767 2.643 2.496 1993-2014 East Coast (PADD1) 3.022 2.968 2.935 2.853 2.753 2.641 1993-2014 New England (PADD 1A) 3.107 3.058 3.038 2.950 2.845 2.732 1993-2014...

435

OIMB GK12 CURRICULUM Grade 60 minutes  

E-Print Network (OSTI)

, and how adaptation influences survival. 5.4 Engineering Design: Engineering design is a process or using science principles to make modifications in the world to meet human needs and aspirations. 5.4D.1 Using a deep-sea mapping process. Materials: ! shoe boxes (plastic or cardboard), one for each pair of students

436

CKRSEF Awards 2014 grade Category Awards  

E-Print Network (OSTI)

Elementary 2nd Sarah Wiseman Liberty Elementary 3rd Raymond Saatman Veterans Park Elementary BehavioralRosa St. Leo Andrew Lewis Liberty Micah Sablan Hayden Sts. Peter & Paul Clay Callahan Sts. Peter & Paul International Sustainable World Project Award Derris Stanland Lexington Christian Middle Sch

Cooper, Robin L.

437

GUIDE TO GRADING SYSTEM UNDERGRADUATE PROGRAMMES  

E-Print Network (OSTI)

and English comprising the following courses: PCE 1001, PCE 1002 and PCE 1003. Note (iii) A student who wishes

Petriu, Emil M.

438

OIMB GK12 Curriculum grade 60 minutes  

E-Print Network (OSTI)

! Learn how baleen whales feed Concepts: ! Cetaceans are a group of marine mammals including whales streamlined bodies, reduced hair, and a tail adapted as a fluke for propulsion. They also have fused bones

439

Diplomarbeit Zur Erlangung des akademischen Grades eines  

E-Print Network (OSTI)

applications. Massive parallel environments with at least 107 virtual processes can be simulated. In comparison Simulation of Advanced Large-Scale HPC Architectures Eingereicht am Fachbereich 1 Ingenieurwissenschaften I of programming design. Therefore co-development of hard- and software is needed. The question is: how to test

Engelmann, Christian

440

Propane (Consumer Grade) Prices - Commercial/Institutional  

Gasoline and Diesel Fuel Update (EIA)

150 1.698 1.873 - - - 1994-2013 East Coast (PADD 1) 2.186 1.731 2.006 - - - 1994-2013 New England (PADD 1A) 2.095 1.689 1.952 - - - 1994-2013 Central Atlantic (PADD 1B) 2.244 1.811...

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

Management of Low-Grade Glioma  

E-Print Network (OSTI)

extent of resection (EOR) was signif- icantly associatedpatients with at least 90% EOR was 97%, whereas it was 76%those with less than 90% EOR [35•]. In 170 patients treated

Pouratian, Nader; Schiff, David

2010-01-01T23:59:59.000Z

442

Classroom Materials for Grades 5-12  

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

Below are resources to help teachers introduce students to the new and exciting world of hydrogen and fuel cells. While these technologies are complex, the principles behind them can be understood by middle school and high school science students. In fact, hydrogen and fuel cell concepts can be used to complement science lessons already taught in the classroom.

443

Life Under Rocks Grade Level: First  

E-Print Network (OSTI)

. Procedure: Find a small and large rock (rock should be on a solid surface and not sunk in sand or muck

444

OIMB GK12 CURRICULUM Grade 45 minutes  

E-Print Network (OSTI)

/litter ! Seasoning- plant debris ! Vegetable oil- motor oil ! Water- precipitation ! Food coloring- chemical) ! Food coloring (1 drop per group) #12;OIMB GK12 CURRICULUM ! Water (1 cup per group) ! Small plastic cups to hold paper and plastic pieces, seasoning, oil and water (4 per group) Lesson plan: 1. Ask what

445

prsente par pour obtenir le grade de  

E-Print Network (OSTI)

. . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.1 L'origine extra-terrestre . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.2 Les

Paris-Sud XI, Université de

446

OIMB GK12 CURRICULUM Grade 60 minutes  

E-Print Network (OSTI)

of archipelagos Concepts: ! The earth is made up of a rocky crust overlying a hot, molten mantle which surrounds and therefore does not move. ! Have two students hold the tinfoil so that it is a flat layer. Have the third

447

Grades 5-12 | Department of Energy  

Energy Savers (EERE)

to help teachers introduce students to the new and exciting world of hydrogen and fuel cells. While these technologies are complex, the principles behind them can be...

448

Commercial Grade Dedication Guidance | Department of Energy  

Office of Environmental Management (EM)

was not manufactured, developed, or performed under a qualified American Society of Mechanical Engineers (ASME) NQA-1 Quality Assurance program. This Guide also provides guidance...

449

OIMB GK12 CURRICULUM Grade 45 minutes  

E-Print Network (OSTI)

cycle is sometimes solid, sometimes liquid and sometimes a gas. ! Water spends a longer amount of time Wet) ! Label and picture for each station: Clouds, Plants, Animals, Rivers, Oceans, Lakes, Ground at each station: Clouds, Plants, Animals, Rivers, Oceans, Lakes, Ground water, Soil, Glaciers (show

450

Thermodynamics of Gaseous Hydrocarbons: Ethane, Ethylene, Propane, Propylene, n?Butane, Isobutane, 1?Butene, Cis and Trans 2?Butenes, Isobutene, and Neopentane (Tetramethylmethane)  

Science Journals Connector (OSTI)

It is pointed out that the assumption of completely free internal rotation in the simpler hydrocarbon molecules is probably responsible for the discrepancies between the results of previous statistical mechanical calculations and the experimental data. Using the formulas and tables of the preceding paper calculations are presented which show that for reasonable values of rotation restricting potentials complete agreement can be obtained with all experimental results. The uncertainty as to the exact height and shape of these potential barriers together with the possible errors in estimated vibration frequencies make highly precise calculations of thermodynamic functions out of the question at present. Nevertheless the general agreement with experiment indicates that the potentials and frequencies selected must be approximately correct. These molecular structure data together with the available values of heats of combustion and hydrogenation are then employed in calculations which yield thermodynamic constants and the free energy of formation as a function of the temperature in the range from 300 to 1500°K. The various calculations have been made for all of the hydrocarbons listed in the title.

Kenneth S. Pitzer

1937-01-01T23:59:59.000Z

451

The catalytic oxidation of propylene: investigation of the effects of composition on activities of Fe?O?, K?O promoted chromia-alumina catalysts  

E-Print Network (OSTI)

with silver ox!r}e. -'thylenc oxi 'e and car}&en dioxide were the piochzcts. T'ne oitinum temperature ?as found to bc n the vicinity of 260 to 270 degrees Centi};rude for a neiz catalyst. It i&as found that a ?dgh air-eth?ilens ratio i~s most favorable... with silver ox!r}e. -'thylenc oxi 'e and car}&en dioxide were the piochzcts. T'ne oitinum temperature ?as found to bc n the vicinity of 260 to 270 degrees Centi};rude for a neiz catalyst. It i&as found that a ?dgh air-eth?ilens ratio i~s most favorable...

Perkins, Thomas Keeble

2012-06-07T23:59:59.000Z

452

Dynamics of Propane in Silica Mesopores Formed upon Propylene Hydrogenation over Pt Nanoparticles by Time-Resolved FT-IR Spectroscopy  

E-Print Network (OSTI)

state distribution of propane between gas and mesopore phaseWavenumber (cm ) B Gas Phase Propane 2968 cm k 1 = 3.1 ± 0.4slices showing the gas phase propane component at 216, 648,

Waslylenko, Walter; Frei, Heinz

2008-01-01T23:59:59.000Z

453

Study of the action of ammonia on phosphorus trifluoride. Density study of the two components system propylene-etylene in the liquid state.  

E-Print Network (OSTI)

??Part I: Ammonia can react with phosphorus trifluoride only at low temperature, (-78°c.), to produce ammonium fluoride and phosphotriamide, P (NH2)3. This last compound is… (more)

Brais, Roger.

1942-01-01T23:59:59.000Z

454

Electrochemical cell studies on fluorinated natural graphite in propylene carbonate electrolyte with difluoromethyl acetate (MFA) additive for low temperature lithium battery application  

Science Journals Connector (OSTI)

Electrochemical cell performances of fluorinated natural graphite (abbreviated as FNG) electrode material was studied by using 1M of LiClO4? EC: DEC: PC (1: 1: 1 v%) electrolyte solution with and without 0·15% v/...

R. Chandrasekaran; M. Koh; Y. Ozhawa; H. Aoyoma…

2009-05-01T23:59:59.000Z

455

Surface performance grading and grade selection process for surface treatment binders  

E-Print Network (OSTI)

Surface treatments have been used by many government agencies as part of their maintenance and rehabilitation programs to improve surface quality and extend the service life of pavements. Traditional specifications for asphalt binders failed...

Barcena Mendoza, Roberto

2012-06-07T23:59:59.000Z

456

Surface performance grading and grade selection process for surface treatment binders.  

E-Print Network (OSTI)

??Surface treatments have been used by many government agencies as part of their maintenance and rehabilitation programs to improve surface quality and extend the service… (more)

Barcena Mendoza, Roberto

2012-01-01T23:59:59.000Z

457

Impact of Tumor Grade on Prognosis in Pancreatic Cancer: Should We Include Grade in AJCC Staging?  

E-Print Network (OSTI)

elds. Using extent of disease (EOD) data ?elds, we were ablepatients (94.4%) using the EOD codes. In the SEER database,

2010-01-01T23:59:59.000Z

458

U.S. Crude Oil and Petroleum Products Stocks by Type  

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

Product: Crude Oil and Petroleum Products Crude Oil All Oils (Excluding Crude Oil) Pentanes Plus Liquefied Petroleum Gases Ethane/Ethylene Ethylene Propane/Propylene Propylene (Nonfuel Use) Normal Butane/Butylene Refinery Grade Butane Isobutane/Butylene Other Hydrocarbons Oxygenates (excluding Fuel Ethanol) MTBE Other Oxygenates Renewables (including Fuel Ethanol) Fuel Ethanol Renewable Diesel Fuel Other Renewable Fuels Unfinished Oils Unfinished Oils, Naphthas & Lighter Unfinished Oils, Kerosene & Light Gas Unfinished Oils, Heavy Gas Oils Residuum Motor Gasoline Blending Comp. (MGBC) MGBC - Reformulated MGBC - Reformulated, RBOB MGBC - Reformulated, RBOB w/ Alcohol MGBC - Reformulated, RBOB w/ Ether MGBC - Reformulated, GTAB MGBC - Conventional MGBC - Conventional, CBOB MGBC - Conventional, GTAB MGBC - Conventional Other Aviation Gasoline Blending Comp. Finished Motor Gasoline Reformulated Gasoline Reformulated Gasoline Blended w/ Fuel Ethanol Reformulated Gasoline, Other Conventional Gasoline Conventional Gasoline Blended Fuel Ethanol Conventional Gasoline Blended Fuel Ethanol, Ed55 and Lower Conventional Other Gasoline Finished Aviation Gasoline Kerosene-Type Jet Fuel Kerosene Distillate Fuel Oil Distillate F.O., 15 ppm Sulfur and under Distillate F.O., Greater than 15 to 500 ppm Sulfur Distillate F.O., Greater 500 ppm Sulfur Residual Fuel Oil Residual F.O., than 1.00% Sulfur Petrochemical Feedstocks Naphtha for Petro. Feedstock Use Other Oils for Petro. Feedstock Use Special Naphthas Lubricants Waxes Petroleum Coke Asphalt and Road Oil Miscellaneous Products

459

CX-004348: Categorical Exclusion Determination | Department of Energy  

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

8: Categorical Exclusion Determination 8: Categorical Exclusion Determination CX-004348: Categorical Exclusion Determination State Energy Program Residential Ground Source Heat Pump Installations (6) CX(s) Applied: B5.1 Date: 10/27/2010 Location(s): Prior Lake, Minnesota Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Minnesota State Energy Program funding. Every project under this determination is less than or equal to 11 tons. All projects listed are vertical , closed loop ground source heat pump systems. The exchange fluid for these projects is a mixture potable water and food-grade propylene glycol. The Minnesota ground source heat pump rebate program requires contractors 10 be licensed and/or bonded as applicable under state or local requirements. All electrical work must be performed by a licensed

460

Propane (Consumer Grade) Prices - Sales to End Users  

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

Sales Type: Sales to End Users, Average Residential Commercial/Institutional Industrial Through Retail Outlets Petro-Chemical Other End Users Sales for Resale Period: Monthly Annual Sales Type: Sales to End Users, Average Residential Commercial/Institutional Industrial Through Retail Outlets Petro-Chemical Other End Users Sales for Resale Period: Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Sales Type Area Apr-13 May-13 Jun-13 Jul-13 Aug-13 Sep-13 View History U.S. - - - - - - 1993-2013 East Coast (PADD 1) - - - - - - 1993-2013 New England (PADD 1A) - - - - - - 1993-2013 Central Atlantic (PADD 1B) - - - - - - 1993-2013 Lower Atlantic (PADD 1C) - - - - - - 1993-2013 Midwest (PADD 2) - - - - - - 1993-2013 Gulf Coast (PADD 3) - - - - - - 1993-2013 Rocky Mountain (PADD 4)

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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

Table 34. Reformulated Motor Gasoline Prices by Grade, Sales Type,  

Gasoline and Diesel Fuel Update (EIA)

84.5 84.5 84.3 77.3 74.4 72.2 75.5 93.4 93.0 82.9 78.3 W 81.7 February ............................. 84.3 84.0 77.5 71.6 71.6 74.6 93.3 92.9 83.1 75.4 81.2 81.0 March .................................. 82.7 82.5 77.8 70.5 71.8 74.1 91.7 91.3 83.3 74.2 W 80.7 April .................................... 82.8 82.6 79.3 68.6 68.2 73.7 91.9 91.5 84.4 72.5 W 80.9 May ..................................... 82.3 81.6 77.5 68.2 63.8 71.9 91.5 90.8 83.2 72.3 W 79.9 June .................................... 80.3 79.4 75.0 63.9 58.9 68.5 89.9 89.0 80.9 68.7 W 77.2 July ..................................... 78.8 78.0 73.0 64.8 59.0 67.9 88.3 87.5 79.0 69.2 W 75.8 August ................................ 85.0 84.5 80.6 74.0 70.7 76.5 94.5 93.9 86.5 78.3 W 83.9 September .......................... 88.1 87.2 83.6 71.9 71.2 77.2 97.6 96.7 89.4 75.8 W

462

Table 34. Reformulated Motor Gasoline Prices by Grade, Sales Type,  

Gasoline and Diesel Fuel Update (EIA)

73.0 73.0 72.5 68.2 57.5 55.3 62.2 82.0 81.4 74.0 61.5 W 70.2 February ............................. 67.2 66.8 62.0 54.9 53.1 57.9 76.8 76.4 67.7 58.9 W 65.0 March .................................. 62.7 62.4 57.3 52.2 49.7 54.3 72.2 71.9 63.2 56.0 W 61.0 April .................................... 65.2 65.0 59.8 55.6 53.9 57.3 74.1 73.9 65.6 59.7 W 63.8 May ..................................... 69.7 69.3 65.1 58.0 53.8 60.7 78.8 78.4 70.9 62.1 W 68.2 June .................................... 68.6 68.0 63.7 54.5 48.4 57.8 77.8 77.3 69.8 58.9 W 66.3 July ..................................... 66.9 66.4 61.6 51.8 47.6 55.5 76.6 76.1 68.0 56.2 W 64.1 August ................................ 65.0 64.4 59.4 48.1 45.2 52.8 75.1 74.5 65.7 52.4 W 61.4 September .......................... 63.4 63.0 58.4 49.1 46.1 52.8 73.4 73.0 64.6 53.1 W

463

Table 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type,  

Gasoline and Diesel Fuel Update (EIA)

91.0 91.0 91.0 80.1 77.2 - 78.5 100.2 100.0 84.9 80.2 - 82.6 February ............................. 93.1 92.9 83.8 77.7 - 80.4 101.1 100.8 88.1 80.2 - 84.1 March .................................. 91.7 91.5 85.2 75.1 - 79.8 96.8 96.8 90.1 NA - 84.4 April .................................... 88.3 88.1 79.3 69.6 - NA 94.0 93.9 83.7 70.7 - NA May ..................................... 89.4 89.3 81.7 75.8 - 78.1 95.8 95.7 88.0 76.9 - 81.6 June .................................... 88.5 88.4 79.4 71.7 - 74.6 95.5 95.5 84.5 72.9 - 77.2 July ..................................... 86.2 86.1 75.4 71.2 - 72.8 93.0 93.0 81.2 72.8 - 75.9 August ................................ 89.3 89.2 79.6 77.7 - 78.4 96.6 96.5 85.0 79.2 - 81.3 September .......................... 91.3 91.0 84.4 74.8 - 78.3 97.9 97.7 88.2 77.7 - 81.5 October

464

Table 34. Reformulated Motor Gasoline Prices by Grade, Sales Type,  

Gasoline and Diesel Fuel Update (EIA)

59.5 59.5 58.9 54.4 42.1 37.1 46.8 70.2 69.7 61.7 46.4 - 56.9 February ............................. 57.3 56.7 52.7 40.6 39.2 45.9 68.2 67.7 60.2 44.8 W 55.3 March .................................. 64.5 64.4 60.1 52.3 48.6 55.3 74.2 73.8 67.6 55.6 W 63.8 April .................................... 82.3 81.6 79.9 62.3 57.2 69.6 92.4 91.6 84.9 65.4 W 78.7 May ..................................... 79.8 78.9 76.3 59.2 54.0 66.0 90.6 89.9 82.9 63.9 W 76.6 June .................................... 74.7 74.6 71.0 61.1 58.0 64.9 85.2 84.8 77.6 64.9 W 73.4 July ..................................... 79.4 79.3 75.9 69.7 66.3 71.9 89.3 88.9 81.9 72.6 NA 78.7 August ................................ 86.5 86.0 82.9 73.3 73.5 77.7 96.4 95.7 88.9 76.6 W 84.8 September .......................... 86.9 86.3 82.0 73.5 70.5 76.9 96.3 95.6 88.7 77.5 W

465

Refiner Prices of Gasoline, All Grades - Through Retail Outlets  

Gasoline and Diesel Fuel Update (EIA)

2007 2008 2009 2010 2011 2012 View 2007 2008 2009 2010 2011 2012 View History U.S. 2.349 2.778 1.892 2.306 3.058 3.168 1978-2012 East Coast (PADD 1) 2.303 2.788 1.871 2.291 3.054 3.172 1983-2012 New England (PADD 1A) 2.333 2.805 1.934 2.346 3.109 W 1983-2012 Connecticut W W W 2.340 W W 1983-2012 Maine W W W W W W 1983-2012 Massachusetts 2.335 2.809 1.935 2.350 3.120 W 1983-2012 New Hampshire 2.342 2.845 1.948 2.373 3.060 W 1983-2012 Rhode Island 2.297 2.703 1.890 2.292 W W 1983-2012 Vermont - - - - - - 1983-2012 Central Atlantic (PADD 1B) 2.320 2.820 1.906 2.328 3.094 3.204 1983-2012 Delaware 2.282 2.730 W W W W 1983-2012 District of Columbia - - - - - - 1983-2012 Maryland - - - - - - 1983-2012 New Jersey 2.348 2.852 W 2.368 3.159 W 1983-2012

466

Table 32. Conventional Motor Gasoline Prices by Grade, Sales Type,  

Gasoline and Diesel Fuel Update (EIA)

83.6 83.6 83.3 77.1 71.3 66.2 71.8 91.6 91.1 82.2 75.5 - 78.4 February ............................. 82.1 81.8 74.8 68.6 64.3 69.3 90.3 89.8 80.0 72.5 - 75.7 March .................................. 79.9 79.7 72.6 66.3 62.6 67.2 88.1 87.8 78.3 70.3 W 73.5 April .................................... 79.0 78.8 72.4 65.2 60.7 66.3 87.3 87.0 77.8 69.3 - 72.7 May ..................................... 79.6 79.5 73.0 67.5 61.8 67.9 87.5 87.2 78.4 70.7 - 73.8 June .................................... 78.9 78.7 70.9 63.9 59.0 65.0 86.8 86.5 76.6 67.2 - 71.0 July ..................................... 77.3 77.2 69.7 63.8 57.6 64.3 85.4 85.1 75.7 67.3 - 70.6 August ................................ 82.1 81.9 75.4 71.0 63.7 70.9 89.9 89.6 81.0 74.8 - 77.3 September .......................... 80.9 80.7 73.3 66.3 60.8 67.1 89.1 88.6 79.2 69.9 -

467

Table 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type,  

Gasoline and Diesel Fuel Update (EIA)

6 6 68.7 60.7 56.0 64.5 85.1 84.6 73.7 64.3 - 70.0 February ............................. 76.3 76.1 67.3 62.9 55.2 65.1 84.6 83.9 70.0 65.5 - 68.2 March .................................. 78.1 77.9 72.0 65.0 W 68.5 84.1 83.8 75.1 66.1 - 70.1 April .................................... 82.6 82.5 76.1 67.9 - 71.4 89.7 89.6 80.0 69.7 - 73.8 May ..................................... 87.9 87.9 79.9 71.8 - 75.1 94.3 94.2 84.6 73.5 - 77.7 June .................................... 90.2 90.2 80.0 66.5 - 72.0 96.4 96.3 84.0 68.7 - 75.0 July ..................................... 86.3 86.4 77.3 62.6 - 68.5 92.5 92.5 78.3 63.9 - 69.6 August ................................ 82.8 82.8 76.3 63.7 - 68.7 87.9 87.8 77.6 65.3 - 69.8 September .......................... 82.4 81.9 73.9 66.4 NA 69.4 NA NA 75.7 68.9 - 72.4 October ...............................

468

Table 33. Oxygenated Motor Gasoline Prices by Grade, Sales Type,  

Gasoline and Diesel Fuel Update (EIA)

7 7 69.7 61.6 W 65.5 84.2 83.9 75.4 65.0 - 71.8 February ............................. 78.1 77.6 71.3 64.5 - 68.0 85.6 85.1 77.4 67.6 - 73.8 March .................................. 83.3 83.0 79.0 72.2 W 75.7 89.7 89.4 85.1 74.4 - 81.1 April .................................... 92.1 91.9 86.0 76.1 - 79.5 100.6 100.1 93.3 77.6 - 84.9 May ..................................... 96.8 96.4 92.4 76.5 - 81.5 105.4 104.6 99.0 77.5 - 86.2 June .................................... 95.6 95.3 NA 76.7 - 81.6 103.7 103.2 98.0 77.5 - 85.8 July ..................................... 93.8 93.5 NA 75.3 - 80.2 101.5 101.1 96.1 76.2 - 84.7 August ................................ 95.2 95.0 NA 78.5 - 82.7 102.2 102.0 NA 80.0 - 86.7 September .......................... 97.1 96.7 88.1 79.7 - 82.9 104.7 104.4 93.7 82.0 - 87.4 October

469

Table 32. Conventional Motor Gasoline Prices by Grade, Sales Type,  

Gasoline and Diesel Fuel Update (EIA)

51.0 51.0 50.8 45.0 38.1 33.0 39.1 59.9 59.7 51.9 42.3 - 46.1 February ............................. 49.4 49.3 43.4 36.3 32.8 37.6 58.6 58.4 50.4 40.4 - 44.3 March .................................. 57.2 57.1 52.4 46.9 39.7 47.1 65.7 65.5 58.6 50.5 - 53.7 April .................................... 68.1 68.0 64.2 56.7 47.2 56.2 76.5 76.2 69.8 60.5 - 63.9 May ..................................... 68.9 68.8 63.6 56.3 48.2 56.1 77.4 77.0 69.4 60.0 - 63.4 June .................................... 68.2 68.2 63.7 56.3 48.6 56.7 76.5 76.3 69.1 59.8 - 63.2 July ..................................... 73.6 73.6 69.8 63.6 55.3 63.8 81.8 81.6 75.0 67.2 - 70.0 August ................................ 78.7 78.7 74.6 68.4 62.5 69.0 87.5 87.2 79.9 72.0 - 74.9 September .......................... 82.1 81.9 77.5 71.5 64.7 71.9 90.9 90.5 83.1 75.3 -

470

Table 32. Conventional Motor Gasoline Prices by Grade, Sales Type,  

Gasoline and Diesel Fuel Update (EIA)

9.0 9.0 68.8 61.7 55.1 51.1 56.0 77.1 76.6 66.9 59.4 - 62.6 February ............................. 69.6 69.4 63.4 56.3 52.0 57.4 77.6 77.2 68.9 60.4 - 64.3 March .................................. 75.3 75.1 69.2 63.6 57.7 64.3 83.2 82.8 74.6 67.5 W 70.8 April .................................... 83.2 83.0 77.3 71.5 64.3 71.6 91.1 90.7 82.5 75.8 - 78.9 May ..................................... 86.2 85.9 79.2 71.7 65.6 72.6 94.1 93.6 84.2 75.8 - 79.5 June .................................... 83.7 83.4 75.2 66.6 59.9 67.4 91.6 90.9 80.2 69.5 - 74.2 July ..................................... 81.8 81.5 74.0 66.6 60.0 67.3 89.6 89.1 79.2 70.2 - 74.2 August ................................ 80.3 80.2 73.1 66.2 60.0 66.9 88.0 87.6 78.4 69.8 W 73.5 September .......................... 80.6 80.5 73.7 67.2 60.4 67.8 88.3 87.9 78.8 70.9 -

471

Table 32. Conventional Motor Gasoline Prices by Grade, Sales Type,  

Gasoline and Diesel Fuel Update (EIA)

66.1 66.1 65.8 58.4 51.1 49.2 52.4 74.6 74.2 64.6 55.6 - 59.1 February ............................. 63.3 63.2 56.3 50.1 47.4 51.0 72.0 71.6 62.1 54.1 - 57.3 March .................................. 61.3 61.2 54.2 47.9 45.4 48.9 69.9 69.5 60.0 51.9 - 55.0 April .................................... 62.6 62.5 56.3 51.1 47.1 51.5 71.0 70.7 61.8 55.1 - 57.7 May ..................................... 65.3 65.2 58.8 53.8 48.4 53.9 73.5 73.1 64.3 57.6 - 60.3 June .................................... 64.6 64.4 57.4 51.2 46.2 51.7 73.2 72.6 63.2 54.9 W 58.2 July ..................................... 63.4 63.2 56.0 49.8 45.1 50.5 72.2 71.7 62.2 53.4 - 56.9 August ................................ 60.5 60.3 52.9 45.0 41.0 46.3 69.6 69.2 59.2 48.8 - 53.0 September .......................... 59.2 59.1 52.8 45.8 40.8 46.7 68.2 67.9 58.8 49.7 -

472

Table 34. Reformulated Motor Gasoline Prices by Grade, Sales Type,  

Gasoline and Diesel Fuel Update (EIA)

2.2 2.2 71.6 66.6 60.0 56.1 63.1 81.2 80.6 71.7 64.6 - 69.7 February ............................. 72.7 72.2 67.3 60.3 56.4 63.3 81.5 80.9 72.7 64.8 - 70.4 March .................................. 77.0 76.6 71.7 66.0 64.7 68.7 85.9 85.3 77.7 70.0 - 75.5 April .................................... 87.8 87.6 82.8 76.2 76.2 79.5 96.1 95.6 88.4 80.5 - 86.2 May ..................................... 94.1 93.7 89.0 76.6 74.5 82.0 103.1 102.3 93.9 80.5 - 90.1 June .................................... 91.6 91.0 86.1 70.6 67.0 77.6 100.7 99.7 91.6 74.8 - 86.7 July ..................................... 87.8 87.6 83.0 70.8 68.0 76.3 96.9 96.3 88.3 74.9 - 84.3 August ................................ 84.0 83.8 78.3 68.9 65.0 72.8 93.1 92.5 83.5 73.3 W 80.6 September .......................... 82.1 82.0 76.0 69.6 66.1 72.2 91.0 90.6 81.2 73.7 W

473

Table 32. Conventional Motor Gasoline Prices by Grade, Sales Type,  

Gasoline and Diesel Fuel Update (EIA)

7.2 7.2 66.8 59.8 52.5 48.2 53.6 75.7 75.1 65.4 57.1 W 60.9 February ............................. 67.0 66.6 60.6 53.5 49.6 54.8 75.4 74.9 66.1 58.1 NA 61.8 March .................................. 67.9 67.6 61.1 54.5 50.4 55.7 75.8 75.3 66.5 58.3 NA 62.2 April .................................... 73.1 72.8 66.9 62.3 56.4 62.6 80.8 80.4 72.4 66.7 W 69.3 May ..................................... 79.0 78.6 72.1 67.7 62.0 68.0 87.2 86.6 77.4 72.5 NA 74.8 June .................................... 79.2 78.6 70.3 62.4 58.5 63.9 87.6 86.8 75.9 66.8 NA 71.0 July ..................................... 75.6 75.0 66.0 56.4 52.9 58.5 83.8 83.0 71.4 60.2 NA 65.5 August ................................ 73.0 72.6 64.8 57.0 51.8 58.3 81.0 80.5 69.8 60.8 NA 64.9 September .......................... 72.0 71.8 64.8 57.7 52.3 58.7 79.8 79.5 69.6

474

Management of super-grade plutonium in spent nuclear fuel  

SciTech Connect

This paper examines the security and safeguards implications of potential management options for DOE's sodium-bonded blanket fuel from the EBR-II and the Fermi-1 fast reactors. The EBR-II fuel appears to be unsuitable for the packaging alternative because of DOE's current safeguards requirements for plutonium. Emerging DOE requirements, National Academy of Sciences recommendations, draft waste acceptance requirements for Yucca Mountain and IAEA requirements for similar fuel also emphasize the importance of safeguards in spent fuel management. Electrometallurgical treatment would be acceptable for both fuel types. Meeting the known requirements for safeguards and security could potentially add more than $200M in cost to the packaging option for the EBR-II fuel.

McFarlane, H. F.; Benedict, R. W.

2000-03-20T23:59:59.000Z

475

Reduction of Weapon Grade Plutonium Inventories in a Thorium Burner  

Science Journals Connector (OSTI)

Fusion-Fission Hybrids and Transmutation / Proceedings of the Fifteenth International Conference on Emerging Nuclear Energy Systems

Sümer Sahin; Haci Mehmet Sahin; Adem Acir

476

Method for producing functionally graded nanocrystalline layer on metal surface  

DOE Patents (OSTI)

An improved process for the creation or formation of nanocrystalline layers on substrates' surfaces is provided. The process involves "prescuffing" the surface of a substrate such as a metal by allowing friction to occur on the surface by a load-bearing entity making rubbing contact and moving along and on the substrate's surface. The "prescuffing" action is terminated when the coefficient of friction between the surface and the noise is rising significantly. Often, the significant rise in the coefficient of friction is signaled by a change in pitch of the scuffing action sound emanating from the buffeted surface. The "prescuffing" gives rise to a harder and smoother surface which withstands better any inadequate lubrication that may take place when the "prescuffed" surface is contacted by other surfaces.

Ajayi, Oyelayo O. (Oswego, IL); Hershberger, Jeffrey G. (Berwyn, IL)

2010-03-23T23:59:59.000Z

477

Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...  

Annual Energy Outlook 2012 (EIA)

... 62.2 61.7 57.6 46.2 43.3 50.8 72.8 72.3 64.2 50.3 W 59.7 December ... 59.8 59.2 55.2 41.0 37.5 46.8 70.5 70.0 62.2 45.5 W...

478

Table 34. Reformulated Motor Gasoline Prices by Grade, Sales...  

Annual Energy Outlook 2012 (EIA)

... 86.2 85.7 80.5 74.4 68.6 75.9 95.2 94.7 86.9 78.5 W 84.2 December ... 88.4 87.8 82.4 74.9 71.5 77.6 97.7 97.1 88.8 79.1 W...

479

A new CT grading system for hip osteoarthritis  

E-Print Network (OSTI)

protocol and methodology and were then free to examine test cases over the next few weeks. A second meeting followed this familiarisation period to cover any questions on methodology. The first interpretation run was performed in a randomised order? #28... , and Doherty M. Radiographic patterns and associations of osteoarthritis of the hip. Ann Rheum Dis 1992;51(10):1111-6. 23. Solomon L, Schnitzler CM, and Browett JP. Osteoarthritis of the hip: the patient behind the disease. Ann Rheum Dis 1982...

Turmezei, T. D.; Fotiadou, A.; Lomas, D. J.; Hopper, M. A.; Poole, K. E. S.

2014-03-15T23:59:59.000Z

480

Production of battery grade materials via an oxalate method  

DOE Patents (OSTI)

An active electrode material for electrochemical devices such as lithium ion batteries includes a lithium transition metal oxide which is free of sodium and sulfur contaminants. The lithium transition metal oxide is prepared by calcining a mixture of a lithium precursor and a transition metal oxalate. Electrochemical devices use such active electrodes.

Belharouak, Ilias; Amine, Khalil

2014-04-29T23:59:59.000Z

Note: This page contains sample records for the topic "grade propylene polymer-grade" 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
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481

Analysis of Surplus Weapons-Grade Plutonium Disposition Options...  

National Nuclear Security Administration (NNSA)

Related News DOENNSA Participates in Large-Scale CTBT On-Site Inspection Exercise in Jordan Charles E. Messick receives the Administrator's Gold Award NNSA highlights 'swords to...

482

High grade uranium resources in the United States : an overview  

E-Print Network (OSTI)

A time analysis of uranium exploration, production and known reserves in the United States is employed to reveal industry trends. The

Graves, Richard E.

1974-01-01T23:59:59.000Z

483

Commercial-Grade, Scalable Support and Training Services Platform...  

Energy Savers (EERE)

a platform composed of standardized systems and processes that leverage automation and web-based resources in order to deliver services at a low cost. Several support tasks will...

484

UT EID# __________ Student ID #: __________ AY: 20____ -20____ School: ____________________________ Grade: ________________  

E-Print Network (OSTI)

: ___________________________________________ _________________________________________________________ CITY STATE ZIP Home Phone: ___________________ Cell#: __________________ Student Email _________________ ______________ ___________ __________ Parent(1)/Guardian Address Home Phone # Work Phone # Primary Language _________________ ______________ ___________ __________ Parent(2)/Guardian Address Home Phone # Work Phone # Primary Language In case of an emergency, contact

Texas at Austin, University of

485

DOE's Bioenergy Technologies Office Supports Military-Grade Biofuels  

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

Our Bioenergy Technologies Office (BETO) is helping the U.S. military increase the nation’s #energy security, reduce greenhouse gas emissions, and create jobs in #America by advancing renewable biofuels.

486

Universit d'Orlans prsente pour obtenir le grade de  

E-Print Network (OSTI)

, qui a initié ce projet de thèse, m'a fait découvrir la modélisation et m'a apporté ses conseils en, qui a assuré la suite de la direction de ma thèse, a été très disponible malgré la distance et m'a participé à ma thèse : Françoise et Dominique qui m'ont apporté de nombreux coups de main de secrétariat

Boyer, Edmond

487

Prsente pour obtenir le grade de DOCTEUR EN SCIENCES  

E-Print Network (OSTI)

............................................... 22 II.B.2.d. Activation de Keap1-Nrf2 par l'H2O2 et le NO de la famille CNC-bZip Nrf2 et Bach2 Directeur de thèse : Michel TOLEDANO Présentée à Saclay le 22 D. Hayes Examinateur M. Jean-François Jeannin Rapporteur M. Simon Saule Examinateur, Président du

Paris-Sud XI, Université de

488

Investment-Grade Audit Kickoff Meeting With ESCO - Sample Agenda...  

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

Assessment Review FOR Federal ESPCs Guide to Government Witnessing and Review of Measurement and Verification Activities FEMP Best Practices and Lessons Learned for...

489

Oil Shale: A Huge Resource of Low-Grade Fuel  

Science Journals Connector (OSTI)

...barrel of oil. With coal, only about 0...the technology for coal liquefaction were...shale would require mining, transporting...same condition as Appalachia. There is no doubt...cornered for surface coal mining. One would think...

William D. Metz

1974-06-21T23:59:59.000Z

490

OIMB GK12 CURRICULUM Grade 30-45 minutes  

E-Print Network (OSTI)

and a carapace. Materials Hermit crab/crustacean transparency, projection or drawing : Live hermit crabs (1 per student) Plastic containers to hold groups of hermit crabs Hermit crab diagram in and out of shell have joints in our legs? Etc. 3. Have the students make up their own important rules for handling live

491

OIMB GK12 CURRICULUM Grade 45-60 minutes  

E-Print Network (OSTI)

two factors that are used to measure biodiversity Concepts: ! Ecosystem engineers are organisms an increase of biodiversity where they are growing. ! Biodiversity is a measure of species richness per student group ! Tweezers (optional), one or more per student group ! Guide books on local marine

492

School Conditions Will Continue to Earn Failing Grades  

E-Print Network (OSTI)

the conditions audit at the Washington State Elementary School, three concerns were identified as targets for possible retrofit work. Ventilation for both the gym and large multipurpose community room was controlled by timers set for periods of occupancy... the conditions audit at the Washington State Elementary School, three concerns were identified as targets for possible retrofit work. Ventilation for both the gym and large multipurpose community room was controlled by timers set for periods of occupancy...

Sonne, J. K.; Vieira, R. K.; Cummings, J. B.

2006-01-01T23:59:59.000Z

493

Short communication Compositional control of continuously graded anode functional layer  

E-Print Network (OSTI)

May 2012 Available online 17 May 2012 Keywords: Solid oxide fuel cell Anode Spray deposition Compositional gradation SOFC a b s t r a c t In this work, solid oxide fuel cells (SOFC's) are fabricated improvements in solid oxide fuel cell performance have come about through various strategies. Materials

Mukhopadhyay, Sharmila M.

494

EA-1962: Analysis for Below Grade Suspect Transuranic (TRU) Waste...  

Energy Savers (EERE)

of waste type and determination of a final disposal path. Per DOE Order 435.1, Change 1, Radioactive Waste Management, and its associated guide, legacy waste at Los Alamos...

495

UNIVERSITE PARIS-EST pour obtenir le grade de  

E-Print Network (OSTI)

;Abstract This research aims at developing and validating a numerical model for the study of blast wave Injuries caused by blast waves . . . . . . . . . . . . . . 3 Two examples : the AZF factory Parabolic Equation (NPE) model as a basis. The model is then extended to handle various features of sound

Paris-Sud XI, Université de

496

Delay impacts of light rail transit grade crossings  

E-Print Network (OSTI)

with the cross i n g control operating independently of the other parts of the signal system. The LRT vehicles recei ve unconditional priority at a 1 1 times. The LRT system in this anal ysi s was depicted as operating on semi -exclusive right-of-way. Median... . 25 Figure 9. Isolated Crossing-Effect of Crossing Clearance Time . 26 Figure 10. Isolated Crossing-Effect of Roadway Cross-Section . . . 28 Figure 11. Isolated Crossing-Delay per Vehicle vs. Crossing Volume-to-Capacity Ratio-Scatter Plot . 30...

Cline, James Curtiss

2012-06-07T23:59:59.000Z

497

Use Low-Grade Waste Steam to Power Absorption Chillers  

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

This tip sheet on waste steam to power absorption chillers provides how-to advice for improving steam systems using low-cost, proven practices and technologies.

498

Human Papillomavirus Genotypes in Cervical Intraepithelial Neoplasia Grade 3  

Science Journals Connector (OSTI)

...respectively; P = 0.0003, Kruskal-Wallis). Conclusions: HPV16-positive...with nonparametric ANOVA and Kruskal-Wallis test. Because the numbers of...respectively; P = 0.0003, Kruskal-Wallis). HPV16-positive CIN3 was...

Philip E. Castle; Mark Schiffman; Cosette M. Wheeler; Nicolas Wentzensen; Patti E. Gravitt

2010-07-01T23:59:59.000Z

499

EXTRUSION OF BASO4 MEDICAL-GRADE THERMOPLASTIC POLYURETHANE  

E-Print Network (OSTI)

converted into pellets of TPU in a twin screw extruder. The twin screw extruder was a Leistritz fully using the same twin screw extruder. The die of the extruder was a rod die with a diameter of 2.5 mm of Technology, Hoboken, NJ * Chemistry Department Koc University, Istanbul, Turkey Abstract Extrudability of 20

500

Functionally Graded Cathodes for Solid Oxide Fuel Cells  

SciTech Connect

One primary suspected cause of long-term performance degradation of solid oxide fuels (SOFCs) is the accumulation of chromium (Cr) species at or near the cathode/electrolyte interface due to reactive Cr molecules originating from Cr-containing components (such as the interconnect) in fuel cell stacks. To date, considerable efforts have been devoted to the characterization of cathodes exposed to Cr sources; however, little progress has been made because a detailed understanding of the chemistry and electrochemistry relevant to the Cr-poisoning processes is still lacking. This project applied multiple characterization methods - including various Raman spectroscopic techniques and various electrochemical performance measurement techniques - to elucidate and quantify the effect of Cr-related electrochemical degradation at the cathode/electrolyte interface. Using Raman microspectroscopy the identity and location of Cr contaminants (SrCrO{sub 4}, (Mn/Cr){sub 3}O{sub 4} spinel) have been observed in situ on an LSM cathode. These Cr contaminants were shown to form chemically (in the absence of current flowing through the cell) at temperatures as low as 625 C. While SrCrO{sub 4} and (Mn/Cr){sub 3}O{sub 4} spinel must preferentially form on LSM, since the LSM supplies the Sr and Mn cations necessary for these compounds, LSM was also shown to be an active site for the deposition of Ag{sub 2}CrO{sub 4} for samples that also contained silver. In contrast, Pt and YSZ do not appear to be active for formation of Cr-containing phases. The work presented here supports the theory that Cr contamination is predominantly chemically-driven and that in order to minimize the effect, cathode materials should be chosen that are free of cations/elements that could preferentially react with chromium, including silver, strontium, and manganese.

Harry Abernathy; Meilin Liu

2006-12-31T23:59:59.000Z