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1

Refinement of higher-order logic programs  

Science Conference Proceedings (OSTI)

A refinement calculus provides a method for transforming specifications to executable code, maintaining the correctness of the code with respect to its specification. In this paper we extend the refinement calculus for logic programs to include higher-order ...

Robert Colvin; Ian Hayes; David Hemer; Paul Strooper

2002-09-01T23:59:59.000Z

2

Three faces of US refining: Margins by gasoline customer type  

SciTech Connect

While it is well known that the US gasoline market has become more volatile in recent years, it is less widely appreciated that the deeply structured, term-contract-oriented companies within the refining and marketing sectors are likely to obtain the best profit margins. This issue stratifies refining margins by class of wholesale-gasoline trade. This issue also presents the following: (a) ED refining netback data series for the US Gulf and West Coasts, Rotterdam, and Singapore as of September 8, 1989; and (b) ED fuel price/tax series for countries of the Western Hemisphere, September 1989 edition. 5 figs., 5 tabs.

1989-09-22T23:59:59.000Z

3

Margin turnaround at hand: reprieve for US refiners  

SciTech Connect

After unseasonal US gasoline price deterioration during the summer driving months, a turnaround in rack (unbranded, undelivered wholesale) prices is helping to reverse the downward trend in refining margins on the Gulf Coast. In turn, the improved margins are buoying up light crude oil prices in the US Gulf Coast and strengthening spot-market prices. A graph tracks apparent margins on four important crudes utilized on the US Gulf Coast. August 1984 saw negative margins even for heavy Venezuelan Lagunillas (15/sup 0/ API) and Mexican Maya (22/sup 0/ API), but both were again positive in September. Energy Detente refining netback data for September 1984 are presented for the US Gulf Coast, the US West Coast, Rotterdam, and Singapore. The fuel price/tax series and industrial fuel prices are presented for September 1984 for countries of the Western Hemisphere.

1984-09-26T23:59:59.000Z

4

Marginally outer trapped surfaces in higher dimensions  

E-Print Network (OSTI)

We review the basic setup of Kaluza-Klein theory, namely a 5-dimensional vacuum with a cyclic isometry, which corresponds to Einstein-Maxwell-dilaton theory in 4-dimensional spacetime. We first recall the behaviour of Killing horizons and its generators under bundle lift and projection. We then show that the property of compact surfaces of being (stably) marginally trapped is preserved under lift and projection provided the appropriate ("Pauli-") conformal scaling is used for the spacetime metric. We also discuss and compare recently proven area inequalities for stable axially symmetric 2-dimensional and 3-dimensional marginally outer trapped surfaces.

Tim-Torben Paetz; Walter Simon

2013-02-13T23:59:59.000Z

5

Table 5.22 Refiner Sales Prices and Refiner Margins for ...  

U.S. Energy Information Administration (EIA)

1 Prices are not adjusted for inflation. See "Nominal Dollars" in Glossary. 6 A volume weighted average of the refiner prices to resellers for ...

6

Fewer Steps to Higher Octane Gasoline in Petroleum Refining | U.S. DOE  

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

Fewer Steps to Higher Octane Gasoline in Petroleum Refining Fewer Steps to Higher Octane Gasoline in Petroleum Refining Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) News & Resources Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3081 F: (301) 903-6594 E: sc.bes@science.doe.gov More Information » July 2013 Fewer Steps to Higher Octane Gasoline in Petroleum Refining A novel metal-organic framework (MOF) efficiently separates higher octane components from the low value ones, offering great potential for significant cost reduction in gasoline production. Print Text Size: A A A Subscribe FeedbackShare Page

7

Are Refiners Entering a Golden Age or a Short Cycle?  

Reports and Publications (EIA)

A presentation exploring the factors driving higher prices, margins, and light-heavy price differentials in today's market, and what these observations may imply about future profitability in the refining industry.

Joanne Shore

2007-04-19T23:59:59.000Z

8

Adaptive Mesh Refinement Solution Techniques for the Multigroup SN Transport Equation Using a Higher-Order Discontinuous Finite Element Method  

E-Print Network (OSTI)

In this dissertation, we develop Adaptive Mesh Refinement (AMR) techniques for the steady-state multigroup SN neutron transport equation using a higher-order Discontinuous Galerkin Finite Element Method (DGFEM). We propose two error estimations, a projection-based estimator and a jump-based indicator, both of which are shown to reliably drive the spatial discretization error down using h-type AMR. Algorithms to treat the mesh irregularity resulting from the local refinement are implemented in a matrix-free fashion. The DGFEM spatial discretization scheme employed in this research allows the easy use of adapted meshes and can, therefore, follow the physics tightly by generating group-dependent adapted meshes. Indeed, the spatial discretization error is controlled with AMR for the entire multigroup SNtransport simulation, resulting in group-dependent AMR meshes. The computing efforts, both in memory and CPU-time, are significantly reduced. While the convergence rates obtained using uniform mesh refinement are limited by the singularity index of transport solution (3/2 when the solution is continuous, 1/2 when it is discontinuous), the convergence rates achieved with mesh adaptivity are superior. The accuracy in the AMR solution reaches a level where the solution angular error (or ray effects) are highlighted by the mesh adaptivity process. The superiority of higherorder calculations based on a matrix-free scheme is verified on modern computing architectures. A stable symmetric positive definite Diffusion Synthetic Acceleration (DSA) scheme is devised for the DGFEM-discretized transport equation using a variational argument. The Modified Interior Penalty (MIP) diffusion form used to accelerate the SN transport solves has been obtained directly from the DGFEM variational form of the SN equations. This MIP form is stable and compatible with AMR meshes. Because this MIP form is based on a DGFEM formulation as well, it avoids the costly continuity requirements of continuous finite elements. It has been used as a preconditioner for both the standard source iteration and the GMRes solution technique employed when solving the transport equation. The variational argument used in devising transport acceleration schemes is a powerful tool for obtaining transportconforming diffusion schemes. xuthus, a 2-D AMR transport code implementing these findings, has been developed for unstructured triangular meshes.

Wang, Yaqi

2009-05-01T23:59:59.000Z

9

Higher U.S. Crop Prices Trigger Little Area Expansion so Marginal Land for Biofuel Crops Is Limited  

SciTech Connect

By expanding energy biomass production on marginal lands that are not currently used for crops, food price increases and indirect climate change effects can be mitigated. Studies of the availability of marginal lands for dedicated bioenergy crops have focused on biophysical land traits, ignoring the human role in decisions to convert marginal land to bioenergy crops. Recent history offers insights about farmer willingness to put non-crop land into crop production. The 2006-09 leap in field crop prices and the attendant 64% gain in typical profitability led to only a 2% increase in crop planted area, mostly in the prairie states

Swinton, S.; Babcock, Bruce; James, Laura; Bandaru, Varaprasad

2011-06-12T23:59:59.000Z

10

Refinement of the experimental energy levels of higher {sup 2}D Rydberg states of the lithium atom with very accurate quantum mechanical calculations  

SciTech Connect

Very accurate variational non-relativistic calculations are performed for four higher Rydberg {sup 2}D states (1s{sup 2}nd{sup 1}, n= 8, ..., 11) of the lithium atom ({sup 7}Li). The wave functions of the states are expanded in terms of all-electron explicitly correlated Gaussian functions and finite nuclear mass is used. The exponential parameters of the Gaussians are optimized using the variational method with the aid of the analytical energy gradient determined with respect to those parameters. The results of the calculations allow for refining the experimental energy levels determined with respect to the {sup 2}S 1s{sup 2}2s{sup 1} ground state.

Sharkey, Keeper L. [Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721 (United States); Bubin, Sergiy [Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States); Adamowicz, Ludwik [Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721 (United States); Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States)

2011-05-21T23:59:59.000Z

11

Refining Cups  

Science Conference Proceedings (OSTI)

For use with AOCS Official Method Ca-9a 52. Refining Cups Lab Supplies Lab Supplies Series Methods Refining Cup - 960 mL For use with AOCS Official Method Ca-9a 52. E5323FF88E60507DAA8DE2F0F507CB97 014 1878

12

2004: Sign of the Future for Refiners?  

Reports and Publications (EIA)

A presentation to the NPRA Annual Meeting discussing the major factors that drove petroleum prices, price differentials, and margins in 2004, and what this might mean for refiners as we look towards the future.

Information Center

2005-03-14T23:59:59.000Z

13

Worldwide refining  

Science Conference Proceedings (OSTI)

Data are presented on refining capacity by country and by company within each country. Capacity data are divided into the following processes: vacuum distillation, thermal operations, catalytic cracking, catalytic reforming, catalytic hydrocracking, catalytic hydrorefining, and catalytic hydrotreating. Production capacity is divided into: alkylation/polymerization/dimerization; aromatics/isomerization; lubricants; oxygenates; hydrogen; petroleum coke; and asphalts.

NONE

1995-12-18T23:59:59.000Z

14

Marginal Energy Prices - RECS97 Update  

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

Marginal Energy Prices - RECS97 Update Marginal Energy Prices - RECS97 Update The original estimation of residential marginal energy prices at the individual household level (as reported in the Marginal Energy Prices Report, http://www.eren.doe.gov/buildings/codes_standards/applbrf/pdfs/marginal_ energy_price.pdf) was based on household energy billing data from EIA's 1993 RECS survey. When the 1997 RECS survey data became available, LBNL updated its estimation of residential marginal energy prices at the individual household level using that data. In addition, LBNL incorporated several refinements (as described below) to the marginal price estimation method it had originally developed. Presented below are the: * RECS97-based results. * Refinements to LBNL's marginal price estimation method.

15

Marginal Energy Prices - RECS97 Update  

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

Marginal Energy Prices - RECS97 Update Marginal Energy Prices - RECS97 Update The original estimation of residential marginal energy prices at the individual household level (as reported in the Marginal Energy Prices Report, http://www.eren.doe.gov/buildings/codes_standards/applbrf/pdfs/marginal_ energy_price.pdf) was based on household energy billing data from EIA's 1993 RECS survey. When the 1997 RECS survey data became available, LBNL updated its estimation of residential marginal energy prices at the individual household level using that data. In addition, LBNL incorporated several refinements (as described below) to the marginal price estimation method it had originally developed. Presented below are the: * RECS97-based results. * Refinements to LBNL's marginal price estimation method.

16

Grain Refining Aluminum Alloys  

Science Conference Proceedings (OSTI)

He has had responsibility within Alcoa for optimizing grain refining and alloying ... of grain refinement; Methods of grain refining; Attributes of chemical inoculants ...

17

Refining and Characterization  

Science Conference Proceedings (OSTI)

Mar 13, 2012 ... Solar Cell Silicon: Refining and Characterization .... Silicon PV Wafers: Correlation of Mechanical Properties and Crack Propagation with ...

18

Introducing backward refinement into B  

Science Conference Proceedings (OSTI)

The B Method exploits a direct first-order wp predicate-transformer formulation of downward simulation to generate its proof obligations for a refinement, so B's notion of refinement is restricted to that of forward refinement. Therefore some refinements ...

Steve Dunne

2003-06-01T23:59:59.000Z

19

Biocatalysis in Oil Refining  

SciTech Connect

Biocatalysis in Oil Refining focuses on petroleum refining bioprocesses, establishing a connection between science and technology. The micro organisms and biomolecules examined for biocatalytic purposes for oil refining processes are thoroughly detailed. Terminology used by biologists, chemists and engineers is brought into a common language, aiding the understanding of complex biological-chemical-engineering issues. Problems to be addressed by the future R&D activities and by new technologies are described and summarized in the last chapter.

Borole, Abhijeet P [ORNL; Ramirez-Corredores, M. M. [BP Global Fuels Technology

2007-01-01T23:59:59.000Z

20

U. S. refinery margin update: A late and tenuous reprieve  

SciTech Connect

Just as many refiners viewed margin recovery possibilities in 1991 as lost, a late Summer series of market adjustments has provided some improvement. Wholesale gasoline prices account for most of the modest recovery. This issue features latest trends affecting margins in the two main US refining centers, and offers a new comparison of the two. The issue also presents the following: (1) the ED Refining Netback Data Series for the US Gulf and West Coasts, Rotterdam and Singapore as of August 9, 1991; and (2) the ED Fuel Price/Tax Series for countries of the Western Hemisphere, August 1991 Edition. 7 figs., 5 tabs.

1991-08-21T23:59:59.000Z

Note: This page contains sample records for the topic "higher refining margins" 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

Refining of shale oil  

DOE Green Energy (OSTI)

The refining of shale oil is reviewed to assess the current state-of-the-art, especially as to the avaiability of technology suitable for operation on a commercial scale. Oil shale retorting processes as they affect the quality of the crude shale oil for refining, exploratory research on the character and refining of shale oil, and other published refining background leading to the present status are discussed. The initial refining of shale oil requires the removal of a large concentration of nitrogen, an added step not required for typical petroleum crude oils, and recently published estimates show that the total cost of refining will be high. Specific technoloy is reported by industry to be technically proven and available for commercial-scale refining. Although the refining will be more costly than that of petroleum, the viability of a shale oil industry will also be affected greatly by the technology and costs of producing the crude shale oil, environmental costs, and future price and tax treatment, and these are outside the scope of this study of refining.

Lanning, W.C.

1978-05-01T23:59:59.000Z

22

Volume Refinement Fairing Isosurfaces  

Science Conference Proceedings (OSTI)

We propose an interpolating refinement method for two- and three-dimensional scalar fields defined on hexahedral grids. Iterative fairing of the underlying contours (isosurfaces) provides the function values of new grid points. Our method can be considered ... Keywords: adaptive mesh refinement, isosurfaces, subdivision, variational modeling, volume fairing

Martin Bertram

2004-10-01T23:59:59.000Z

23

Optimal refinement of rule bases  

Science Conference Proceedings (OSTI)

This article presents a formal analysis of the rule refinement selection problem. There is no satisfactory methodical standard for the optimal refinement of rule bases. Current refinement systems select the best overall rule base refinements out of a ... Keywords: Rule base validation, complex gain calculation, conflicting and alternative rule refinements, evaluation of safety-critical knowledge bases, optimal refinement selection, rule refinement classes, subsumption and synergy

Hans-Werner Kelbassa

2004-08-01T23:59:59.000Z

24

7. U.S. Refining Cash Margin Trends: Factors Affecting the Margin ...  

U.S. Energy Information Administration (EIA)

Three refinery types are used to explore the historical ... Natural Gas Annual. Electric Power Cost: ... Operating and maintenance costs vary mainly with refinery ...

25

Are Refiners Entering a Golden Age or a Short Cycle?  

Gasoline and Diesel Fuel Update (EIA)

a Short Cycle? A presentation exploring the factors driving higher prices, margins, and light-heavy price differentials in today's market, and what these observations may imply...

26

Regional Reserve Margins  

Science Conference Proceedings (OSTI)

This report explores the status of reserve margins across the country. Reserve margins represent the margin of excess capacity compared to demand. It is commonly calculated as the fraction of unused capacity during the summer peak. Simple in concept, the numbers can be difficult to calculate because of changes in geographic boundaries between regions, different views of what capacity qualifies to be counted, and changes in estimates of demand. This report provides a comprehensive and consistently calcula...

2009-03-23T23:59:59.000Z

27

REFINING FLUORINATED COMPOUNDS  

DOE Patents (OSTI)

This invention relates to the method of refining a liquid perfluorinated hydrocarbon oil containing fluorocarbons from 12 to 28 carbon atoms per molecule by distilling between 150 deg C and 300 deg C at 10 mm Hg absolute pressure. The perfluorinated oil is washed with a chlorinated lower aliphatic hydrocarbon, which mairtains a separate liquid phase when mixed with the oil. Impurities detrimental to the stability of the oil are extracted by the chlorinated lower aliphatic hydrocarbon. (AEC)

Linch, A.L.

1963-01-01T23:59:59.000Z

28

Zone refining of plutonium metal  

Science Conference Proceedings (OSTI)

The purpose of this study was to investigate zone refining techniques for the purification of plutonium metal. The redistribution of 10 impurity elements from zone melting was examined. Four tantalum boats were loaded with plutonium impurity alloy, placed in a vacuum furnace, heated to 700{degrees}C, and held at temperature for one hour. Ten passes were made with each boat. Metallographic and chemical analyses performed on the plutonium rods showed that, after 10 passes, moderate movement of certain elements were achieved. Molten zone speeds of 1 or 2 inches per hour had no effect on impurity element movement. Likewise, the application of constant or variable power had no effect on impurity movement. The study implies that development of a zone refining process to purify plutonium is feasible. Development of a process will be hampered by two factors: (1) the effect on impurity element redistribution of the oxide layer formed on the exposed surface of the material is not understood, and (2) the tantalum container material is not inert in the presence of plutonium. Cold boat studies are planned, with higher temperature and vacuum levels, to determine the effect on these factors. 5 refs., 1 tab., 5 figs.

NONE

1997-05-01T23:59:59.000Z

29

Developing security protocols by refinement  

Science Conference Proceedings (OSTI)

We propose a development method for security protocols based on stepwise refinement. Our refinement strategy guides the transformation of abstract security goals into protocols that are secure when operating over an insecure channel controlled by a Dolev-Yao-style ... Keywords: entity authentication, formal development, key establishment, security protocols, stepwise refinement

Christoph Sprenger; David Basin

2010-10-01T23:59:59.000Z

30

Renewable Energy Project Refinement Webinar | Department of Energy  

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

Renewable Energy Project Refinement Webinar Renewable Energy Project Refinement Webinar Renewable Energy Project Refinement Webinar May 28, 2014 11:00AM MDT Attendees will become familiar with the three components of project refinement: project financing strategies, off-taker agreements, and vendor selection. Project refinement obstacles, particularly financing, can deter the deployment of renewable energy projects on tribal lands. Attendees will learn about the financial resources and ownership options available-including venture capital and innovative financing-that can help Tribes overcome longstanding barriers and attract higher levels of private investment. Finally, attendees will learn how project refinement can accelerate renewable energy development and, with it, tribal economic and community development. There is no cost to attend the webinar, but

31

Minimally refined biomass fuel  

DOE Patents (OSTI)

A minimally refined fluid composition, suitable as a fuel mixture and derived from biomass material, is comprised of one or more water-soluble carbohydrates such as sucrose, one or more alcohols having less than four carbons, and water. The carbohydrate provides the fuel source; water solubilizes the carbohydrates; and the alcohol aids in the combustion of the carbohydrate and reduces the vicosity of the carbohydrate/water solution. Because less energy is required to obtain the carbohydrate from the raw biomass than alcohol, an overall energy savings is realized compared to fuels employing alcohol as the primary fuel.

Pearson, Richard K. (Pleasanton, CA); Hirschfeld, Tomas B. (Livermore, CA)

1984-01-01T23:59:59.000Z

32

Weekly Refiner Net Production  

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

Refiner Net Production Refiner Net Production (Thousand Barrels per Day) Period: Weekly 4-Week Average Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Product/Region 11/08/13 11/15/13 11/22/13 11/29/13 12/06/13 12/13/13 View History Finished Motor Gasoline 2,168 2,300 2,336 2,359 2,462 2,368 2010-2013 East Coast (PADD 1) 54 53 52 67 71 67 2010-2013 Midwest (PADD 2) 696 745 722 711 798 790 2010-2013 Gulf Coast (PADD 3) 891 916 1,010 1,053 1,011 1,021 2010-2013 Rocky Mountain (PADD 4) 260 248 245 232 279 235 2010-2013 West Coast (PADD 5) 268 338 308 296 302 255 2010-2013 Reformulated 50 49 49 49 48 49 2010-2013 Blended with Ethanol 50 49 49 49 48 49 2010-2013 Other

33

Refines Efficiency Improvement  

Science Conference Proceedings (OSTI)

Refinery processes that convert heavy oils to lighter distillate fuels require heating for distillation, hydrogen addition or carbon rejection (coking). Efficiency is limited by the formation of insoluble carbon-rich coke deposits. Heat exchangers and other refinery units must be shut down for mechanical coke removal, resulting in a significant loss of output and revenue. When a residuum is heated above the temperature at which pyrolysis occurs (340 C, 650 F), there is typically an induction period before coke formation begins (Magaril and Aksenova 1968, Wiehe 1993). To avoid fouling, refiners often stop heating a residuum before coke formation begins, using arbitrary criteria. In many cases, this heating is stopped sooner than need be, resulting in less than maximum product yield. Western Research Institute (WRI) has developed innovative Coking Index concepts (patent pending) which can be used for process control by refiners to heat residua to the threshold, but not beyond the point at which coke formation begins when petroleum residua materials are heated at pyrolysis temperatures (Schabron et al. 2001). The development of this universal predictor solves a long standing problem in petroleum refining. These Coking Indexes have great potential value in improving the efficiency of distillation processes. The Coking Indexes were found to apply to residua in a universal manner, and the theoretical basis for the indexes has been established (Schabron et al. 2001a, 2001b, 2001c). For the first time, a few simple measurements indicates how close undesired coke formation is on the coke formation induction time line. The Coking Indexes can lead to new process controls that can improve refinery distillation efficiency by several percentage points. Petroleum residua consist of an ordered continuum of solvated polar materials usually referred to as asphaltenes dispersed in a lower polarity solvent phase held together by intermediate polarity materials usually referred to as resins. The Coking Indexes focus on the amount of these intermediate polarity species since coke formation begins when these are depleted. Currently the Coking Indexes are determined by either titration or solubility measurements which must be performed in a laboratory. In the current work, various spectral, microscopic, and thermal techniques possibly leading to on-line analysis were explored for measuring the Coking Indexes.

WRI

2002-05-15T23:59:59.000Z

34

Refiner Wholesale Price ...........................  

Gasoline and Diesel Fuel Update (EIA)

Prices (cents per gallon) Prices (cents per gallon) Refiner Wholesale Price ........................... 297 299 302 275 289 290 288 262 275 289 280 257 293 282 276 Gasoline Regular Grade Retail Prices Including Taxes PADD 1 .................................................... 363 366 364 355 361 350 355 331 341 355 347 327 362 349 343 PADD 2 .................................................... 355 366 369 340 350 368 352 318 334 355 346 318 357 347 338 PADD 3 .................................................... 346 353 345 326 339 336 337 307 323 341 329 305 343 330 325 PADD 4 .................................................... 322 374 358 348 323 361 362 326 322 351 348 322 351 344 337 PADD 5 .................................................... 390 413 390 384 382 390 385 355 362 384 379 356 394 378 371 U.S. Average ........................................

35

Carbon Emissions: Petroleum Refining Industry  

U.S. Energy Information Administration (EIA)

Energy-Related Carbon Emissions for the Petroleum and Coal Products Industry, 1994. Petroleum refining is by far the largest component of the petroleum and ...

36

Maintaining plant safety margins  

SciTech Connect

The Final Safety Analysis Report Forms the basis of demonstrating that the plant can operate safely and meet all applicable acceptance criteria. In order to assure that this continues through each operating cycle, the safety analysis is reexamined for each reload core. Operating limits are set for each reload core to assure that safety limits and applicable acceptance criteria are not exceeded for postulated events within the design basis. These operating limits form the basis for plant operation, providing barriers on various measurable parameters. The barriers are refereed to as limiting conditions for operation (LCO). The operating limits, being influenced by many factors, can change significantly from cycle to cycle. In order to be successful in demonstrating safe operation for each reload core (with adequate operating margin), it is necessary to continue to focus on ways to maintain/improve existing safety margins. Existing safety margins are a function of the plant type (boiling water reactor/pressurized water reactor (BWR/PWR)), nuclear system supply (NSSS) vendor, operating license date, core design features, plant design features, licensing history, and analytical methods used in the safety analysis. This paper summarizes the experience at Yankee Atomic Electric Company (YAEC) in its efforts to provide adequate operating margin for the plants that it supports.

Bergeron, P.A.

1989-01-01T23:59:59.000Z

37

Estimating Marginal Residential Energy Prices in the Analysis of Proposed  

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

Marginal Residential Energy Prices in the Analysis of Proposed Marginal Residential Energy Prices in the Analysis of Proposed Appliance Energy Efficiency Standards Title Estimating Marginal Residential Energy Prices in the Analysis of Proposed Appliance Energy Efficiency Standards Publication Type Report LBNL Report Number LBNL-44230 Year of Publication 2000 Authors Chaitkin, Stuart, James E. McMahon, Camilla Dunham Whitehead, Robert D. Van Buskirk, and James D. Lutz Document Number LBNL-44230 Date Published March 1 Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract Use of marginal energy prices, instead of average energy prices, represents a theoretically valuable and challenging refinement to the usual life-cycle cost analysis conducted for proposed appliance energy efficiency standards. LBNL developed a method to estimate marginal residential energy prices using a regression analysis based on a nationally representative sample of actual consumer energy bills. Based on the 1997 Residential Energy Consumption Survey (RECS), national mean marginal electricity prices were estimated to be 2.5% less than average electricity prices in the summer and 10.0% less than average prices in the non-summer months. For natural gas, marginal prices were 4.4% less than average prices in the winter and 15.3% less than average prices in the non-winter months.

38

Resource Adequacy Requirement: Reserve Margin, Contract Cover, and Price Caps  

Science Conference Proceedings (OSTI)

In setting RARs, some state agencies are proposing reserve margins greater than the pre-restructuring levels. But it would be a mistake to reach this conclusion unless other factors are explicitly considered. A simulation indicates that decisions on the reserve margin, the percentage of forward contract cover, and the level of price caps should not be made in isolation. The results support the conjecture that the higher the contract coverage, the less justifiable are high reserve margins or low price caps.

Rochlin, Cliff; Huang, Jeff

2005-09-01T23:59:59.000Z

39

Preservation of probabilistic information flow under refinement  

Science Conference Proceedings (OSTI)

Information flow properties, which describe confidentiality requirements, are not generally preserved under behavior refinement. This article describes a formal framework for refinement relations between nondeterministic probabilistic processes that ... Keywords: CSP, Confidentiality, Information flow property, Information theory, Process calculus, Refinement, Security

Thomas Santen

2008-02-01T23:59:59.000Z

40

Nucleic Acid Standards - Refinement Parameters  

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

Refinement Parameters Refinement Parameters The DNA/RNA topology and parameter files for X-PLOR are shown below. These were tested with DNA structures and with protein-DNA complexes. X-PLOR topology file X-PLOR parameter files: X-PLOR parameter file For the refinement of high resolution structures (< 1.7 Angstroms) the parameter file with distinct bond distances and bond angles for both C2'-endo and C3'-endo conformations should be considered: X-PLOR parameter file for high resolution structures "New Parameters for the Refinement of Nucleic Acid Containing Structures." Gary Parkinson, Jaroslav Vojtechovsky, Lester Clowney, Axel Brunger*, and Helen M. Berman. (1996) Acta Cryst. D 52, 57-64 Rutgers University, Department of Chemistry, Piscataway, NJ 08855-0939; *The Howard Hughes Medical Institute and Departments of Molecular and

Note: This page contains sample records for the topic "higher refining margins" 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

Margins up; consumption down  

SciTech Connect

The results of a survey of dealers in the domestic fuel oil industry are reported. Wholesale prices, reacting to oversupply, decreased as did retail prices; retail prices decreased at a slower rate so profit margins were larger. This trend produced competitive markets as price-cutting became the method for increasing a dealer's share of the profits. Losses to other fuels decreased, when the figures were compared to earlier y; and cash flow was very good for most dealers. In summary, profits per gallon of oil delivered increased, while the consumption of gasoline per customer decreased. 22 tables.

Mantho, M.

1983-09-01T23:59:59.000Z

42

Zone refining of plutonium metal  

Science Conference Proceedings (OSTI)

The zone refining process was applied to Pu metal containing known amounts of impurities. Rod specimens of plutonium metal were melted into and contained in tantalum boats, each of which was passed horizontally through a three-turn, high-frequency coil in such a manner as to cause a narrow molten zone to pass through the Pu metal rod 10 times. The impurity elements Co, Cr, Fe, Ni, Np, U were found to move in the same direction as the molten zone as predicted by binary phase diagrams. The elements Al, Am, and Ga moved in the opposite direction of the molten zone as predicted by binary phase diagrams. As the impurity alloy was zone refined, {delta}-phase plutonium metal crystals were produced. The first few zone refining passes were more effective than each later pass because an oxide layer formed on the rod surface. There was no clear evidence of better impurity movement at the slower zone refining speed. Also, constant or variable coil power appeared to have no effect on impurity movement during a single run (10 passes). This experiment was the first step to developing a zone refining process for plutonium metal.

Blau, M.S.

1994-08-01T23:59:59.000Z

43

Indiana, Illinois, and Kentucky Refining District Percent ...  

U.S. Energy Information Administration (EIA)

Indiana, Illinois, and Kentucky Refining District Percent Utilization of Refinery Operable Capacity (Percent)

44

Electronic structure of superconductivity refined  

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

Electronic structure of superconductivity refined Electronic structure of superconductivity refined Electronic structure of superconductivity refined A team of physicists propose a new model that expands on a little understood aspect of the electronic structure in high-temperature superconductors. July 10, 2008 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials.

45

Carbon Emissions: Petroleum Refining Industry  

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

Petroleum Refining Industry Petroleum Refining Industry Carbon Emissions in the Petroleum Refining Industry The Industry at a Glance, 1994 (SIC Code: 2911) Total Energy-Related Emissions: 79.9 million metric tons of carbon (MMTC) -- Pct. of All Manufacturers: 21.5% -- Nonfuel Emissions: 16.5 MMTC Total First Use of Energy: 6,263 trillion Btu -- Pct. of All Manufacturers: 28.9% Nonfuel Use of Energy Sources: 3,110 trillion Btu (49.7%) -- Naphthas and Other Oils: 1,328 trillion Btu -- Asphalt and Road Oil: 1,224 trillion Btu -- Lubricants: 416 trillion Btu Carbon Intensity: 12.75 MMTC per quadrillion Btu Energy Information Administration, "1994 Manufacturing Energy Consumption Survey", "Monthly Refinery Report" for 1994, and Emissions of Greenhouse Gases in the United States 1998.

46

Analysis of refiners' total barrel costs and revenues from the sale of petroleum products, 1976 to 1979  

SciTech Connect

In this report, the Economic Regulatory Administration has evaluated refiners' costs and revenues from the sale of major petroleum products from July 1976 through December 1979. This report represents a continuing effort to assess No. 2 heating oil prices and margins in that it updates prior middle distillate studies through March 1980. The analysis examines selling prices and costs associated with each major petroleum product category and a combination of petroleum products (total barrel) from a sample of nine refiners. The total barrel approach was adopted to reduce distortions caused by varying methods of allocation of costs among regulated and unregulated products by refiners. This report determines the extent to which increased costs were recovered on controlled products and whether refiners obtained greater cost recoupment on decontrolled products than would have been allowed under continued controls. The principal methods of measurement used to evaluate product pricing levels for the nine refiners surveyed were cost recoupment (Chapter III), gross margins (Chapter IV), and net margins (Chapter V). Gross margins were derived by subtracting average crude oil costs from average product selling prices for individual product categories and the total barrel. Net margins were derived by subtracting average crude oil costs as well as average marketing, manufacturing, and purchased product costs from average selling prices for individual product categories and the total barrel.

1980-11-01T23:59:59.000Z

47

Vacuum State/Refiner/Location  

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

Vacuum Vacuum State/Refiner/Location Barrels per Atmospheric Crude Oil Distillation Capacity Barrels per Operating Idle Operating Idle Downstream Charge Capacity Thermal Cracking Delayed Fluid Coking Visbreaking Other/Gas Calendar Day Stream Day Distillation Coking Oil Table 3. Capacity of Operable Petroleum Refineries by State as of January 1, 2013 (Barrels per Stream Day, Except Where Noted) ......................................................... Alabama 120,100 0 130,000 0 48,000 32,000 0 0 0 Goodway Refining LLC 4,100 0 5,000 0 0 0 0 0 0 ....................................................................................................................................................................................................

48

Are Refiners Entering a Golden Age or a Short Cycle?  

U.S. Energy Information Administration (EIA)

Are Refiners Entering a Golden Age or a Short Cycle? Global Refining Strategies 2007 Barcelona, Spain

49

Method for refining contaminated iridium  

DOE Patents (OSTI)

Contaminated iridium is refined by alloying it with an alloying agent selected from the group consisting of manganese and an alloy of manganese and copper, and then dissolving the alloying agent from the formed alloy to provide a purified iridium powder.

Heshmatpour, Bahman (Waltham, MA); Heestand, Richard L. (Oak Ridge, TN)

1983-01-01T23:59:59.000Z

50

Higher Education  

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

Higher Education Higher Education Explore the multiple dimensions of a career at LANL: work with brilliant minds in an inclusive environment rich in intellectual vitality and...

51

Reformulated Gasoline Market Affected Refiners Differently, 1995  

Reports and Publications (EIA)

This article focuses on the costs of producing RFG as experienced by different types of refiners and on how these refiners fared this past summer, given the prices for RFG at the refinery gate.

John Zyren

1996-01-01T23:59:59.000Z

52

Firing of pulverized solvent refined coal  

DOE Patents (OSTI)

An air-purged burner for the firing of pulverized solvent refined coal is constructed and operated such that the solvent refined coal can be fired without the coking thereof on the burner components. The air-purged burner is designed for the firing of pulverized solvent refined coal in a tangentially fired boiler.

Derbidge, T. Craig (Sunnyvale, CA); Mulholland, James A. (Chapel Hill, NC); Foster, Edward P. (Macungie, PA)

1986-01-01T23:59:59.000Z

53

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

Science Conference Proceedings (OSTI)

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

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

2012-06-28T23:59:59.000Z

54

Utah Kerosene Wholesale/Resale Volume by Refiners (Thousand ...  

U.S. Energy Information Administration (EIA)

Referring Pages: Kerosene Sales for Resale Refiner Sales Volumes; Utah Kerosene Refiner Sales Volumes; Utah Sales for Resale Refiner Sales Volumes of Aviation Fuels ...

55

Table 40. Refiners’ Operable Atmospheric Crude Oil Distillation ...  

U.S. Energy Information Administration (EIA)

Table 40. Refiners’ Operable Atmospheric Crude Oil Distillation Capacity as of January 1, 1997 Refiner Barrels per Calendar Day Refiner Barrels per

56

Iowa Propane Wholesale/Resale Volume by Refiners (Thousand ...  

U.S. Energy Information Administration (EIA)

Referring Pages: Iowa Propane (Consumer Grade) Refiner Sales Volumes; Iowa Sales for Resale Refiner Sales Volumes of Aviation Fuels, Kerosene, ...

57

Alabama Propane Wholesale/Resale Volume by Refiners ...  

U.S. Energy Information Administration (EIA)

Referring Pages: Alabama Propane (Consumer Grade) Refiner Sales Volumes; Alabama Sales for Resale Refiner Sales Volumes of Aviation Fuels, Kerosene, ...

58

Table 5. Refiners' Total Operable Atmospheric Crude Oil ...  

U.S. Energy Information Administration (EIA)

CORPORATION / Refiner / Location Table 5. Refiners' Total Operable Atmospheric Crude Oil Distillation Capacity as of January 1, 2011 Calendar Day

59

Table 5. Refiners' Total Operable Atmospheric Crude Oil ...  

U.S. Energy Information Administration (EIA)

CORPORATION / Refiner / Location Table 5. Refiners' Total Operable Atmospheric Crude Oil Distillation Capacity as of January 1, 2009 Calendar Day

60

Metallurgical Silicon Refining by Transient Directional Solidification  

Science Conference Proceedings (OSTI)

Abstract Scope, Directional solidification is an essential refining step to obtain solar ... The chemical analyses of the ingots show macrosegregation of several ...

Note: This page contains sample records for the topic "higher refining margins" 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

Vacuum Distillation Refining of Crude Tin - Thermodynamics ...  

Science Conference Proceedings (OSTI)

Presentation Title, Vacuum Distillation Refining of Crude Tin - Thermodynamics Analysis and Experiments on the Removal of Arsenic from the Crude Tin.

62

Higher Education  

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

Education » Education » Higher Education Higher Education Explore the multiple dimensions of a career at LANL: work with brilliant minds in an inclusive environment rich in intellectual vitality and opportunities for growth. Contact Education Janelle Vigil-Maestas Community Programs Office (505) 665-4329 Email "The partnership between LANL and regional colleges creates opportunities for students like me to attain challenging and rewarding careers." - Sherry Salas Bachicha Higher Education Resources for Undergraduates, Graduates & Postdocs Opportunities LANL Foundation Scholarships LANL Post Doc Program Programs Certificate in Environmental Monitoring (pdf) Community College Institute (CCI) (pdf) Computer Science and Information Technology Pipeline Program (ADIT/HPC Division) (pdf)

63

Pneumatic conveying of pulverized solvent refined coal  

DOE Patents (OSTI)

A method for pneumatically conveying solvent refined coal to a burner under conditions of dilute phase pneumatic flow so as to prevent saltation of the solvent refined coal in the transport line by maintaining the transport fluid velocity above approximately 95 ft/sec.

Lennon, Dennis R. (Allentown, PA)

1984-11-06T23:59:59.000Z

64

Refined computational models for laminated shells  

Science Conference Proceedings (OSTI)

This paper presents refined computational models for non homogeneous, deep, doubly curved shells. The theory is based on a kinematical approach in which the continuity conditions for displacements and shear stresses at layer interfaces and on the bounding ... Keywords: bending-torsion warping coupling, multilayered shells, piezoelectric laminates, shear-membrane refinements, stress computations, triangular C1-C1/2 finite element

M. Touratier

2002-01-01T23:59:59.000Z

65

North Dakota Refining Capacity Study  

Science Conference Proceedings (OSTI)

According to a 2008 report issued by the United States Geological Survey, North Dakota and Montana have an estimated 3.0 to 4.3 billion barrels of undiscovered, technically recoverable oil in an area known as the Bakken Formation. With the size and remoteness of the discovery, the question became 'can a business case be made for increasing refining capacity in North Dakota?' And, if so what is the impact to existing players in the region. To answer the question, a study committee comprised of leaders in the region's petroleum industry were brought together to define the scope of the study, hire a consulting firm and oversee the study. The study committee met frequently to provide input on the findings and modify the course of the study, as needed. The study concluded that the Petroleum Area Defense District II (PADD II) has an oversupply of gasoline. With that in mind, a niche market, naphtha, was identified. Naphtha is used as a diluent used for pipelining the bitumen (heavy crude) from Canada to crude markets. The study predicted there will continue to be an increase in the demand for naphtha through 2030. The study estimated the optimal configuration for the refinery at 34,000 barrels per day (BPD) producing 15,000 BPD of naphtha and a 52 percent refinery charge for jet and diesel yield. The financial modeling assumed the sponsor of a refinery would invest its own capital to pay for construction costs. With this assumption, the internal rate of return is 9.2 percent which is not sufficient to attract traditional investment given the risk factor of the project. With that in mind, those interested in pursuing this niche market will need to identify incentives to improve the rate of return.

Dennis Hill; Kurt Swenson; Carl Tuura; Jim Simon; Robert Vermette; Gilberto Marcha; Steve Kelly; David Wells; Ed Palmer; Kuo Yu; Tram Nguyen; Juliam Migliavacca

2011-01-05T23:59:59.000Z

66

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

SciTech Connect

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

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

2012-06-28T23:59:59.000Z

67

Refiner details ``best practices`` approach to catalyst selection  

Science Conference Proceedings (OSTI)

Catalysts are critical to hydrocarbon processing in refineries. Refiners spend millions of dollars per year on catalysts. This cost, however, pales in comparison to the impact that catalysts can have. The lost opportunity from not using the right catalyst, or an unscheduled shutdown caused by a catalyst-related problem, can be an order of magnitude higher than the cost of the catalyst itself. Chevron Products Co. has adopted a best practices approach to addressing technical and operational issues in refining. A subset of the best-practices program includes the testing, selection, and monitoring of catalysts for Chevron`s fluid catalytic cracking (FCC), catalytic reforming, and hydroprocessing units. The paper discusses these practices.

Krishna, A.S. [Chevron Products Co., El Segundo, CA (United States); Arndt, J.H. [Chevron Products Co., Richmond, CA (United States); Kuehler, C.W.; Kramer, D.C. [Chevron Research and Technology Co., Richmond, CA (United States)

1996-10-14T23:59:59.000Z

68

Firing of pulverized solvent refined coal  

SciTech Connect

A burner for the firing of pulverized solvent refined coal is constructed and operated such that the solvent refined coal can be fired successfully without any performance limitations and without the coking of the solvent refined coal on the burner components. The burner is provided with a tangential inlet of primary air and pulverized fuel, a vaned diffusion swirler for the mixture of primary air and fuel, a center water-cooled conical diffuser shielding the incoming fuel from the heat radiation from the flame and deflecting the primary air and fuel steam into the secondary air, and a watercooled annulus located between the primary air and secondary air flows.

Lennon, Dennis R. (Allentown, PA); Snedden, Richard B. (McKeesport, PA); Foster, Edward P. (Macungie, PA); Bellas, George T. (Library, PA)

1990-05-15T23:59:59.000Z

69

Marginal Energy Prices- RECS97 Update  

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

An updated estimation of residential marginal energy prices at the individual house level using the 1997 RECS survey data

70

2011 Short Course Basics of Edible Oil Processing and Refining  

Science Conference Proceedings (OSTI)

Basics of Edible Oil Processing and Refining held at the 102nd AOCS Annual Meeting and Expo. 2011 Short Course Basics of Edible Oil Processing and Refining Basics of Edible Oil Processing and Refining Short Course Saturday April 30,

71

2013 Short Course Fundamentals of Edible Oil Processing and Refining  

Science Conference Proceedings (OSTI)

Fundamentals of Edible Oil Processing and Refining Short Course held at the 104th AOCS Annual Meeting and Expo. 2013 Short Course Fundamentals of Edible Oil Processing and Refining Fundamentals of Edible Oil Processing and Refining S

72

2010 Short Course Basics of Edible Oil Processing and Refining  

Science Conference Proceedings (OSTI)

Basics of Edible Oil Processing and Refining Short Course held at the 101st AOCS Annual Meeting and Expo. 2010 Short Course Basics of Edible Oil Processing and Refining Basics of Edible Oil Processing and Refining Short Course Saturday, M

73

Valero Refining Company - NJ | Open Energy Information  

Open Energy Info (EERE)

Valero Refining Company - NJ Valero Refining Company - NJ Jump to: navigation, search Name Valero Refining Company - NJ Place New Jersey Utility Id 56325 Utility Location Yes Ownership R Operates Generating Plant Yes Activity Retail Marketing Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png No rate schedules available. Average Rates Industrial: $0.0652/kWh References ↑ "EIA Form EIA-861 Final Data File for 2010 - File1_a" Retrieved from "http://en.openei.org/w/index.php?title=Valero_Refining_Company_-_NJ&oldid=411921" Categories: EIA Utility Companies and Aliases

74

U.S. Refining Capacity Utilization  

Reports and Publications (EIA)

This article briefly reviews recent trends in domestic refining capacity utilization and examines in detail the differences in reported crude oil distillation capacities and utilization rates among different classes of refineries.

Tancred Lidderdale

1995-10-01T23:59:59.000Z

75

Genealogy Of Major U.S. Refiners  

Reports and Publications (EIA)

A summary presentation iof mergers and acquisitions by U.S. major oil companies (including the U.S. affiliates of foreign major oil companies). The presentation focuses on petroleum refining over the last several years through late 2009.

Neal Davis

2009-12-02T23:59:59.000Z

76

Genealogy of major U.S. refiners  

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

of major U.S. refiners of major U.S. refiners 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 Amoco SOHIO BP ARCO Mapco Williams Clark Refining 1/89 12/98 4/00 3/98 Orion Diamond Shamrock Ultramar k 12/96 7/03 Ultramar Diamond Shamrock (UDS) Total North America UDS 9/97 Valero Salomon (Basis) Valero Williams BP BP b BP-Husky Refining LLC (jv) Husky Huntway 5/97 6/01 9/05 Valero Premcor g Valero Valero Valero 12/01 7/94 e 12/98 f Carlyle Group y Coastal 3/03 d 12/88 a 6/01 o Sun Company Sunoco v 7/07 i 4/08 c 5/04 h Pacific Refining (jv) 12/88 r El Paso 1/04 w 10/98 m 6/00 n 9/89 t 8/94 u See notes, footnotes, and source notes below. PBF Energy 6/10 p 12/10 q 3/11 x 10/11 j 9/00 l 1/01 s Genealogy of major U.S. refiners (continued) 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013

77

U.S. Crude Oil Imported Acquisition Cost by Refiners ...  

U.S. Energy Information Administration (EIA)

Release Date: 1/2/2014: Next Release Date: 2/3/2014: Referring Pages: Refiner Acquisition Cost of Imported Crude Oil ; U.S. Refiner Acquisition Cost ...

78

Practical Guide to Vegetable Oil ProcessingChapter 4 Refining  

Science Conference Proceedings (OSTI)

Practical Guide to Vegetable Oil Processing Chapter 4 Refining Processing eChapters Processing Press Downloadable pdf of Chapter 4 Refining from the book ...

79

Vermont Propane Retail Sales by Refiners (Thousand Gallons per Day)  

U.S. Energy Information Administration (EIA)

Referring Pages: Propane (Consumer Grade) Sales to End Users Refiner Sales Volumes; Vermont Propane (Consumer Grade) Refiner Sales Volumes; Vermont Sales to End Users ...

80

Idaho Kerosene-Type Jet Fuel Retail Sales by Refiners ...  

U.S. Energy Information Administration (EIA)

Referring Pages: Idaho Kerosene-Type Jet Fuel Refiner Sales Volumes; Idaho Sales to End Users Refiner Sales Volumes of Aviation Fuels, Kerosene, ...

Note: This page contains sample records for the topic "higher refining margins" 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

Idaho Kerosene Wholesale/Resale Volume by Refiners (Thousand ...  

U.S. Energy Information Administration (EIA)

Referring Pages: Idaho Kerosene Refiner Sales Volumes; Idaho Sales for Resale Refiner Sales Volumes of Aviation Fuels, Kerosene, Propane, No.1 and No. ...

82

Marginal Lands: Concept, Assessment and Management  

SciTech Connect

Marginal lands have received wide attention for their potential to improve food security and support bioenergy production. However, environmental, ecosystem service, and sustainability concerns have been widely raised over the use of marginal land. Knowledge of the extent, location, and quality of marginal lands as well as their assessment and management are limited and diverse. This paper provides a review of the historical development of marginal concept, its application and assessment. Limitations and priority research needs of marginal land assessment and management were discussed.

Kang, Shujiang [ORNL; Post, Wilfred M [ORNL; West, Tristram O. [Joint Global Change Research Institute, PNNL; Bandaru, Vara Prasad [ORNL; Izaurralde, Dr. R. Cesar [Pacific Northwest National Laboratory (PNNL); Wang, Dali [ORNL; Nichols, Dr Jeff A [ORNL

2013-01-01T23:59:59.000Z

83

Higher Yields Can Be Achieved  

Gasoline and Diesel Fuel Update (EIA)

8 8 Notes: While the current forecast is showing higher distillate production than last year, there is room for yet more volume through refiners switching to higher yields than those being forecast. This will only happen if economic incentives evolve to encourage this change. Current high spreads indicate those incentives may occur. This graph shows the distillate yield pattern over the last few years. Generally yields rise in the fall to build stocks for winter distillate use. On average, the yield increase during the fourth quarter is about 2% higher than the yield average of the lowest yield months of June, July and August. (Recognize that a 1% change in yield is about a 150 MB/D change in distillate production, which is about 4% of winter demand.) During the fall of 1996, the winter season began with very low

84

Changing World Product Markets and Potential Refining Capacity ...  

U.S. Energy Information Administration (EIA)

Changing World Product Markets and Potential Refining Capacity Increases. NPRA Annual Meeting March 2006

85

Minnesota, Wisconsin, North and South Dakota Refining District ...  

U.S. Energy Information Administration (EIA)

Minnesota, Wisconsin, North and South Dakota Refining District Percent Utilization of Refinery Operable Capacity (Percent)

86

Refining District New Mexico Gross Inputs to Atmospheric Crude Oil ...  

U.S. Energy Information Administration (EIA)

Refining District New Mexico Gross Inputs to Atmospheric Crude Oil Distillation Units (Thousand Barrels per Day)

87

Texas Inland Refining District Operable Crude Oil Distillation ...  

U.S. Energy Information Administration (EIA)

Texas Inland Refining District Operable Crude Oil Distillation Capacity (Thousand Barrels per Calendar Day)

88

East Coast Refining District Operable Crude Oil Distillation ...  

U.S. Energy Information Administration (EIA)

East Coast Refining District Operable Crude Oil Distillation Capacity (Thousand Barrels per Calendar Day)

89

Parallel Cell Projection Rendering of Adaptive Mesh Refinement Data  

Science Conference Proceedings (OSTI)

Adaptive Mesh Refinement (AMR) is a technique used in numerical simulations to automatically refine (or de-refine) certain regions of the physical domain in a finite difference calculation. AMR data consists of nested hierarchies of data grids. As AMR ... Keywords: volume rendering, adaptive mesh refinement, load balancing, multi-grid methods, parallel rendering, visualization

Gunther H. Weber; Martin Ohler; Oliver Kreylos; John M. Shalf; E. Wes Bethel; Bernd Hamann; Gerik Scheuermann

2003-10-01T23:59:59.000Z

90

Refining District Minnesota-Wisconsin-North Dakota-South ...  

U.S. Energy Information Administration (EIA)

Refining District Minnesota-Wisconsin-North Dakota-South Dakota Refinery Yield of Petroleum Coke (Percent)

91

Hydrogen Piping Experience in Chevron Refining  

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

Piping Piping Experience in Chevron Refining Ned Niccolls Materials Engineer Chevron Energy Technology Company Hydrogen Pipeline Working Group Workshop August 30-31, 2005 Outline 2 Overall perspectives from long term use of hydrogen piping in refining. Piping specifications and practices. The (few) problem areas. Related industry work: American Petroleum Institute corrosion and materials work on high temperature hydrogen attack. Overall Perspectives 3 Few problems with hydrogen piping operating at ambient to at least 800F and pressures up to at least 3000psia as long as we stay within well- defined limits H2S contamination presents many more problems, beyond the scope of this talk We will note a couple of specific vulnerabilities Refining tracks materials performance in

92

Norwegian Silicon Refining AS | Open Energy Information  

Open Energy Info (EERE)

Refining AS Refining AS Jump to: navigation, search Name Norwegian Silicon Refining AS Place Oslo, Norway Zip 214 Product Oslo-based company with an upgraded metallurgical silicon (UMG) production process called the Stubergh method. Coordinates 59.91228°, 10.74998° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":59.91228,"lon":10.74998,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

93

1995 Reformulated Gasoline Market Affected Refiners Differently  

Gasoline and Diesel Fuel Update (EIA)

5 Reformulated Gasoline Market Affected 5 Reformulated Gasoline Market Affected Refiners Differently by John Zyren, Charles Dale and Charles Riner Introduction The United States has completed its first summer driving season using reformulated gasoline (RFG). Motorists noticed price increases at the retail level, resulting from the increased cost to produce and deliver the product, as well as from the tight sup- ply/demand balance during the summer. This arti- cle focuses on the costs of producing RFG as experienced by different types of refiners and on how these refiners fared this past summer, given the prices for RFG at the refinery gate. RFG Regulatory Requirements The use of RFG is a result of the Clean Air Act Amendments of 1990 (CAAA). The CAAA cover a wide range of programs aimed at improving air qual-

94

Minimally refined biomass fuels: an economic shortcut  

DOE Green Energy (OSTI)

An economic shortcut can be realized if the sugars from which ethanol is made are utilized directly as concentrated aqueous solutions for fuels rather than by further refining them through fermentation and distillation steps. Simple evaporation of carbohydrate solutions from sugar cane or sweet sorghum, or from hydrolysis of starch or cellulose content of many plants yield potential liquid fuels of energy contents (on a volume basis) comparable to highly refined liquid fuels like methanol and ethanol. The potential utilization of such minimally refined biomass derived fuels is discussed and the burning of sucrose-ethanol-water solutions in a small modified domestic burner is demonstrated. Other potential uses of sugar solutions or emulsion and microemulsions in fuel oils for use in diesel or turbine engines are proposed and discussed.

Pearson, R.K.; Hirschfeld, T.B.

1980-07-01T23:59:59.000Z

95

Refiners around the world must cope with changing markets, environmental regulations  

Science Conference Proceedings (OSTI)

Oil consumption is expected to grow slowly into the next century, middle distillates are expected to be the fastest growing major products, and the quality of the typical crude fed to refineries will continue to deteriorate. Those are key challenges facing refiners around the world. Changing product specifications - from lead-free gasoline in Europe to new lube oils for tomorrow's engines - will also continue to demand more of refinery processes and equipment. Through it all, refiners will be faced with changing crude and products markets that will constantly test their ability to achieve a reasonable margin. The problems associated with excess capacity have not been completely solved; there is still considerable rationalization of worldwide capacity to be done. Success will depend in large part on the development and proper application of new technology, and the imaginative use of sophisticated operating techniques.

Nunn, J.A.

1987-05-11T23:59:59.000Z

96

Marginal Energy Price Report - July 1999  

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

J:\marginal\FinalDraftReport7-29-99.wpd J:\marginal\FinalDraftReport7-29-99.wpd DRAFT Marginal Energy Prices Report July 1999 U.S. Department of Energy Assistant Secretary, Energy Efficiency & Renewable Energy Office of Codes and Standards Washington, DC 20585 ii J:\marginal\FinalDraftReport7-29-99.wpd This document was prepared for the Department of Energy by staff members of the Lawrence Berkeley National Laboratory (LBNL) iii J:\marginal\FinalDraftReport7-29-99.wpd MARGINAL ENERGY PRICES Final Report Page Outline i Executive Summary 1 I. Background 2 II. Methods 4 III. Analysis and Results - Commercial 6 IV. Analysis and Results - Residential 12 V. Residential Heating Oil and Propane 19 VI. Taxes 22 Appendices Appendix 1. Tariffs Used in the Commercial Analysis 26

97

Marginal Energy Price Report - July 1999  

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

J:\marginal\FinalDraftReport7-29-99.wpd J:\marginal\FinalDraftReport7-29-99.wpd DRAFT Marginal Energy Prices Report July 1999 U.S. Department of Energy Assistant Secretary, Energy Efficiency & Renewable Energy Office of Codes and Standards Washington, DC 20585 ii J:\marginal\FinalDraftReport7-29-99.wpd This document was prepared for the Department of Energy by staff members of the Lawrence Berkeley National Laboratory (LBNL) iii J:\marginal\FinalDraftReport7-29-99.wpd MARGINAL ENERGY PRICES Final Report Page Outline i Executive Summary 1 I. Background 2 II. Methods 4 III. Analysis and Results - Commercial 6 IV. Analysis and Results - Residential 12 V. Residential Heating Oil and Propane 19 VI. Taxes 22 Appendices Appendix 1. Tariffs Used in the Commercial Analysis 26

98

Diverse Engagement: Drawing in the Margins  

E-Print Network (OSTI)

that challenges the dominant theories and paradigms or research that involves marginalised communities. Or, the margin could simply mean a place to doodle to get the creative juices flowing. Whatever the meaning of the margin, each of the papers demonstrates... IN THE MARGINS, Proceedings of the Interdisciplinary Graduate Conference, Cambridge University, UK (28-29, June 2010) ISBN 978-0-9566139-1-2 © University of Cambridge, Graduate Development Programme. 10 Indeed all the essays contained in the volume...

French, Matthew; Jackson, Simon; Jokisuu, Elina

2010-06-28T23:59:59.000Z

99

A Cluster Refinement Algorithm for Motif Discovery  

Science Conference Proceedings (OSTI)

Finding Transcription Factor Binding Sites, i.e., motif discovery, is crucial for understanding the gene regulatory relationship. Motifs are weakly conserved and motif discovery is an NP-hard problem. We propose a new approach called Cluster Refinement ... Keywords: Transcription factor binding site, motif discovery.

Gang Li; Tak-Ming Chan; Kwong-Sak Leung; Kin-Hong Lee

2010-10-01T23:59:59.000Z

100

Arnold Schwarzenegger REFINING ESTIMATES OF WATER-  

E-Print Network (OSTI)

of magnitude of waterrelated energy use do not consider energy that is produced as a byproduct of water supply decrease in a dry year. The amount of water delivered or hydropower produced depends on a number Arnold Schwarzenegger Governor REFINING ESTIMATES OF WATER- RELATED ENERGY USE IN CALIFORNIA

Note: This page contains sample records for the topic "higher refining margins" 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

SEARCH NAVIGATE REFINE PERSONALIZE SAVE SEARCH OPERATORS  

E-Print Network (OSTI)

SEARCH NAVIGATE REFINE PERSONALIZE SAVE SEARCH OPERATORS Search using AND, OR, NOT, and SAME (same sentence) to create logical search state- ments. Nest search operators inside parentheses. Search exact Web of Science® Quick Reference Card Search over 9,200 journals from over 45 different languages

Russell, Lynn

102

Ontology-based automatic query refinement  

Science Conference Proceedings (OSTI)

The effectiveness of user query plays a vital role in retrieving highly relevant documents in keyword-based search engine. Because of the lack of domain knowledge, users tend to post very short queries, which do not express their information need ... Keywords: automatic query refinement, document retrieval, information retrieval, keywords, ontology, query expansion, retrieval relevancy, search engines, semantic search, user queries

S. Sendhilkumar; G. S. Mahalakshmi; S. N. Rajasekar

2009-07-01T23:59:59.000Z

103

Deriving Efficient Cache Coherence Protocols Through Refinement  

Science Conference Proceedings (OSTI)

We address the problem of developing efficient cache coherence protocols for use in distributed systems implementing distributed shared memory (DSM) using message passing. A serious drawback of traditional approaches to this problem is that the users ... Keywords: DSM protocols, communication protocols, refinement

Ratan Nalumasu; Ganesh Gopalakrishnan

2002-01-01T23:59:59.000Z

104

Hydrocarbon Processing`s refining processes `96  

Science Conference Proceedings (OSTI)

The paper compiles information on the following refining processes: alkylation, benzene reduction, benzene saturation, catalytic cracking, catalytic reforming, coking, crude distillation, deasphalting, deep catalytic cracking, electrical desalting, ethers, fluid catalytic cracking, hydrocracking, hydrogenation, hydrotreating, isomerization, resid catalytic cracking, treating, and visbreaking. The application, products, a description of the process, yield, economics, installation, and licensor are given for each entry.

NONE

1996-11-01T23:59:59.000Z

105

Development of miscella refining process for cottonseed oil-isopropyl alcohol system: laboratory-scale evaluations  

E-Print Network (OSTI)

A technologically feasible cottonseed oil-isopropyl alcohol (IPA) miscella refining process was developed to produce high quality cottonseed oil. Individual steps necessary to refine cottonseed oil-IPA miscella were determined and improved. These were: 1) homogenization of the cottonseed oil-IPA miscella with caustic solution; 2) centrifugation; 3) separation of miscella layers; 4) desolventization, 5) water washing and drying; and 6) bleaching. In neutralization, the miscella was mixed with 20 Be' caustic solution (50% excess) by using a Sonolator for 15 times. The refined oils from both the bottom and top layers were water washed using 12.5% and 20% (w/w) hot water, respectively. The water washing efficiently recovered the oil from the top layer miscella and reduced the soap and phosphorus content. The water washed and dried oils from the bottom and top layers were treated with 0.5% and 4% (w/w) acid activated bleaching clay, respectively. Good quality refined and bleached oil was obtained. However, the quality of the bleached oil produced from bottom layer was better than that from the top layer. Comparative experiments with both IPA and hexane systems showed that the new refining process developed in this study could produce a higher quality refined oil from the cottonseed oil-IPA miscella than from the cottonseed oil-hexane miscella.

Chau, Chi-Fai

1994-01-01T23:59:59.000Z

106

Circulation and Exchange in Choked Marginal Seas  

Science Conference Proceedings (OSTI)

A theory for the exchange between a rotating, buoyancy-forced marginal sea and an ocean is developed and tested numerically. Cooling over the marginal sea leads to sinking and sets up a two-layer exchange flow, with a warm surface layer entering ...

Larry J. Pratt; Michael A. Spall

2008-12-01T23:59:59.000Z

107

Gasification, polygeneration capture interest of refiners  

SciTech Connect

Integrated gasification combined cycle (IGCC) plants are moving into the mainstream of international refining. Such plants can turn refinery dregs into the whitest of all products--sparkling electricity--plus hydrogen and synthesis gas. Hydrogen is an indispensable element for cleaning up and improving modern fuels, while syngas is the feedstock for important finished petrochemicals and intermediaries. The status and potential of gasification technologies and projects were covered in a 3 day conference early in October in San Francisco. What made this conference different from others on the subject in the past was recognition that oil and natural gas producers and the international refining industry are becoming major power producers without government subsidies. Such projects can pass the scrutiny of lenders and the test of commerciality. They are not targeted simply for electricity, but also for production of hydrogen, steam, and petrochemical feedstock. The process objective for projects now far exceeds simple cogeneration. It`s now trigeneration, even polygeneration.

Aalund, L.R.

1996-12-09T23:59:59.000Z

108

Global refining industry preparing for future  

Science Conference Proceedings (OSTI)

About 2.1 million b/sd of crude distillation capacity is now under construction or considered likely to be built, more than 80% of which is concentrated in Asia and the Middle East. An overview of global refining centers will illustrate technological trends and the emergence of developing economies, particularly those in the Asia/Pacific region. About 50% of the refineries in the US and Western Europe have capacities greater than 200,000 b/d. Figure 1 lists the capacities and relative conversion capabilities of the world refining centers. The paper discusses bottoms conversion, regulations, investment, grassroots plans, and refinery capacities in the US, Western Europe, Eastern Europe/FSU, Middle East, Asia/Pacific region, and South America/Caribbean.

Martin, T.W. [Stone and Webster Engineering Corp., Houston, TX (United States)

1995-04-10T23:59:59.000Z

109

Parabolic refined invariants and Macdonald polynomials  

E-Print Network (OSTI)

A string theoretic derivation is given for the conjecture of Hausel, Letellier, and Rodriguez-Villegas on the cohomology of character varieties with marked points. Their formula is identified with a refined BPS expansion in the stable pair theory of a local root stack, generalizing previous work of the first two authors in collaboration with G. Pan. Haiman's geometric construction for Macdonald polynomials is shown to emerge naturally in this context via geometric engineering. In particular this yields a new conjectural relation between Macdonald polynomials and refined local orbifold curve counting invariants. The string theoretic approach also leads to a new spectral cover construction for parabolic Higgs bundles in terms of holomorphic symplectic orbifolds.

Wu-yen Chuang; Duiliu-Emanuel Diaconescu; Ron Donagi; Tony Pantev

2013-11-14T23:59:59.000Z

110

Genealogy of major U.S. refiners - Energy Information Administration  

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

See full Genealogy of Major U.S. Refiners Previous Release Genealogy of Major U.S. Refiners Genealogy of Major U.S. Refiners Release date: September 18, 2013 figre 1. World energy consumption, 1990-2040. The structure of the U.S. petroleum refining industry has changed substantially over the past several years. In the diagram the companies shown on the right side are presently active in U.S. refining. The transactions over the past 25 years that created these companies also are shown. The transactions included here may be as little as a single refinery, or as much as all the refining assets of the parties to the transaction. Transactions that include less than all refining assets are indicated by vertical dotted lines while vertical solid lines indicate that all refining assets are included. Additionally,

111

Definition: Capacity Benefit Margin | Open Energy Information  

Open Energy Info (EERE)

Benefit Margin Benefit Margin Jump to: navigation, search Dictionary.png Capacity Benefit Margin The amount of firm transmission transfer capability preserved by the transmission provider for Load- Serving Entities (LSEs), whose loads are located on that Transmission Service Provider's system, to enable access by the LSEs to generation from interconnected systems to meet generation reliability requirements. Preservation of CBM for an LSE allows that entity to reduce its installed generating capacity below that which may otherwise have been necessary without interconnections to meet its generation reliability requirements. The transmission transfer capability preserved as CBM is intended to be used by the LSE only in times of emergency generation deficiencies.[1] Related Terms

112

Washington Refiner Gasoline Prices by Grade and Sales Type  

U.S. Energy Information Administration (EIA)

Refiner Gasoline Prices by Grade and Sales Type (Dollars per Gallon Excluding Taxes) ... History; Gasoline, All Grades : Through Retail Outlets: ...

113

North Carolina Refiner Gasoline Prices by Grade and Sales Type  

U.S. Energy Information Administration (EIA)

Refiner Gasoline Prices by Grade and Sales Type (Dollars per Gallon Excluding Taxes) Area: ... History; Gasoline, All Grades : Through Retail ...

114

Refining District Minnesota-Wisconsin-North Dakota-South Dakota ...  

U.S. Energy Information Administration (EIA)

Refining District Minnesota-Wisconsin-North Dakota-South Dakota Gas Plant Production of Propane and Propylene (Thousand Barrels)

115

Refining District Minnesota-Wisconsin-North Dakota-South Dakota ...  

U.S. Energy Information Administration (EIA)

Refining District Minnesota-Wisconsin-North Dakota-South Dakota Pentanes Plus Stocks at Natural Gas Processing Plants (Thousand Barrels)

116

Energy Efficiency Improvement in the Petroleum Refining Industry  

E-Print Network (OSTI)

Chemical Manufacturing and Petroleum Refining Industries.Saving Opportunities for Petroleum Refineries. An ENERGYAdministration (EIA), 2002. Petroleum Supply Annual 2001,

Worrell, Ernst; Galitsky, Christina

2005-01-01T23:59:59.000Z

117

Electron Beam Cold Hearth Refinement Processing of Inconel Alloy ...  

Science Conference Proceedings (OSTI)

ELECTRON BEAM COLD HEARTH REFINEMENT PROCESSING OF. INCONEL" ALLOY 718 AND NIMONIC* ALLOY PK50. S. Patel+,. 1-C. Elliott+,.

118

P-12: Refinement of Primary and Eutectic Silicon Particles in ...  

Science Conference Proceedings (OSTI)

Evolution of ESR Technology and Equipment for Long Hollow Ingots Manufacture ... Phosphorus Partitioning During EAF Refining of DRI Based Steel.

119

Table 5. Refiners' Total Operable Atmospheric Crude Oil ...  

U.S. Energy Information Administration (EIA)

LYONDELL CHEMICAL CO b Houston Refining LP..... Houston, Texas...270,200 TOTAL SA Total Petrochemicals Inc ...

120

Refining District Oklahoma-Kansas-Missouri Refinery and ...  

U.S. Energy Information Administration (EIA)

Refining District Oklahoma-Kansas-Missouri Refinery and Blender Net Input of Fuel Ethanol (Thousand Barrels per Day)

Note: This page contains sample records for the topic "higher refining margins" 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

Refining District Oklahoma-Kansas-Missouri Ethane-Ethylene ...  

U.S. Energy Information Administration (EIA)

Refining District Oklahoma-Kansas-Missouri Ethane-Ethylene Stocks at Natural Gas Processing Plants (Thousand Barrels)

122

Action Refinement from a Logical Point of View  

Science Conference Proceedings (OSTI)

Action refinement provides a mechanism to design a complex reactive system hierarchically. This paper is devoted to action refinement from a logical point of view, and to combining the hierarchical implementation of a complex system with the hierarchical ... Keywords: action refinement, modal logics, reactive systems, specification, verification

Mila E. Majster-Cederbaum; Naijun Zhan; Harald Fecher

2002-01-01T23:59:59.000Z

123

On the quantification of safety margins  

E-Print Network (OSTI)

The nuclear industry has relied on the concept of Defense in Depth (DID) and traditional safety margins to deal with the uncertainties associated with the design and operation of nuclear facilities. These concepts were ...

Pagani, Lorenzo P

2004-01-01T23:59:59.000Z

124

Marginal Energy Price Report- July 1999  

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

Estimated Consumer Marginal Energy Prices for the Commercial and Residental Sectors for use in the Life-Cycle Cost Analyses for four of the High-Priority Appliance Rulemakings

125

Soil Moisture Impacts on Convective Margins  

Science Conference Proceedings (OSTI)

An idealized prototype for the location of the margins of tropical land region convection zones is extended to incorporate the effects of soil moisture and associated evaporation. The effect of evaporation, integrated over the inflow trajectory ...

Benjamin R. Lintner; J. David Neelin

2009-08-01T23:59:59.000Z

126

The potential impact of proposed hazardous air pollutant legislation on the US refining industry. Final report, Task 9  

SciTech Connect

The Administration has recently submitted a Clean Air Act Bill to Congress which would significantly modify the regulatory treatment of industrial hazardous air pollutants (air toxics). The adverse economic impacts of this legislation on the petroleum refining industry could be substantial. Depending on how EPA interprets the legislative language, the capital costs of compliance for the proposed bill could range from $1.3 to $15.0 billion. At the upper end of the range, costs of this order of magnitude would be over 2.5 times larger than the combined estimated cost of EPAs gasoline volatility (RVP) regulations and the proposed diesel sulfur content regulations. Potential compliance costs could be as much as $0.40 per barrel processed for large, complex refineries and as much as $0.50 per barrel for some small, simple refineries. For perspective, total refining costs, including a normal return on investment, are $4--5 per barrel. Because foreign refineries supplying the US will not be affected by the US air toxics regulations, US refineries may not be able to raise prices sufficiently to recover their compliance costs. For this reason, the air toxic legislation may put US refineries at an economic disadvantage relative to foreign competitors. Even under the best petroleum product market conditions, costs of $0.40 to $0.50 per barrel processed could reduce US Gulf refiner cash operating margins by as much as 29 percent. Under less favorable market conditions, such as the mid-80`s when refiners were losing money, the hazardous air pollutant regulations could greatly increase US refiner operating losses and potentially lead to closure of some marginal refineries.

Not Available

1989-11-01T23:59:59.000Z

127

The basins on the Argentine continental margin  

Science Conference Proceedings (OSTI)

After the stabilization of the central Gondwana Craton, orogenic belts were accreted, as a result of convergence events and an extensive passive margin developed in southwestern Gondwana. Thermal subsidence in Parana, Karoo-Ventania basins and the Late Paleozoic-Early Mesozoic rifts, were modified by the Gondwana breakup and the South Atlantic opening. Early Paleozoic marine transgressions deposited the Table Mountain Group in Ventania. In southwestern Patagonia foreland clastics were deposited. Magmatic arcs and marine units indicate a tectonic trough was formed, alternating with continental sequences, over Late Paleozoic metamorphics and intrusives, resulting from plastered terrains along the Gondwana margin. In Patagonia, Permo-Carboniferous continental and glacio marine clastics infill the basins, while in Ventania, paralic sequences, grade from neritic to continental to the northeast, extending beneath the continental margin. The Triassic-Jurassic rift basins progressed onto regional widespread acid lavas and were infilled by lagoonal organic-rich sequences. Early drift phase built basins transverse to the margin, with fluvio-lacustrine sequences: Salado, Colorado, Valdes-Rawson, San Julian and North Malvinas intracratonic basins, which underwent transtensional faulting. Post-Oxfordian to Neocomian brackish sequences, onlapped the conjugate basins during the margin`s drift, with petroleum systems, as in Austral and Malvinas. In the Valanginian, basic extrusions commenced to form on the continental border, heralding the oceanic phase. Due to thermal subsidence, offlaping sediments prograded onto the remaining half-grabens. Several petroleum systems, proven and hypothetical, are identified in this region.

Urien, C.M. [Buenos Aires Technological Institute Petroleum School, Buenos Aires (Argentina)

1996-08-01T23:59:59.000Z

128

Joint Center for Housing Studies Harvard University Refinance and the Accumulation of Home Equity Wealth  

E-Print Network (OSTI)

may be quoted without explicit permission provided that full credit, including © notice, is given to the source. Any opinions expressed are those of the authors and not those of Freddie Mac, the Joint Center for Housing Studies of Harvard University, or of any of the persons or organizations providing support to the Joint Center for Housing Spending financed by home equity extraction helps smooth household consumption and bolster the economy in economic downturns, but may reduce wealth accumulation. We use American Housing Survey (AHS) data to provide cross-sectional, longitudinal and cohort group analysis of the accumulation of home equity, the change in aggregate leverage, and the likelihood of mortgage refinance for the period of 1985 to 2001. We find that homeowners who are African-American or lower income tend to have less home equity and higher aggregate leverage than others, and they are less likely to take advantage of refinance during our sample period; over 30 years, the failure to refinance to a lower interest rate reduces aggregate wealth by $22 billion for each group. Further, the decision to refinance is a rational response to changes in market conditions, as the likelihood of refinance is positively tied to interest rate reduction and home value increase. 1

Frank E. Nothaft; Yan Chang; Frank E. Nothaft; Deputy Chief; Economist Freddie; Mac Yan Chang

2004-01-01T23:59:59.000Z

129

Ladle Refining Furnaces for the Steel Industry  

Science Conference Proceedings (OSTI)

There has been a tremendous interest in the use of ladle refining furnaces in the last few years. Several units have been or are being constructed in the United States and most steel companies are seriously considering installing them. The purpose of this report is to inform the member companies of EPRI of the development and operations of ladle furnaces and to assist steel companies in determining if ladle furnaces fit their goals and which particular unit would be best for their operation. In this repo...

1990-01-31T23:59:59.000Z

130

Estimating Marginal Residential Energy Prices in the Analysis...  

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

Marginal Residential Energy Prices in the Analysis of Proposed Appliance Energy Efficiency Standards Title Estimating Marginal Residential Energy Prices in the Analysis of Proposed...

131

Adaptive Mesh Refinement for Characteristic Grids  

E-Print Network (OSTI)

I consider techniques for Berger-Oliger adaptive mesh refinement (AMR) when numerically solving partial differential equations with wave-like solutions, using characteristic (double-null) grids. Such AMR algorithms are naturally recursive, and the best-known past Berger-Oliger characteristic AMR algorithm, that of Pretorius & Lehner (J. Comp. Phys. 198 (2004), 10), recurses on individual "diamond" characteristic grid cells. This leads to the use of fine-grained memory management, with individual grid cells kept in 2-dimensional linked lists at each refinement level. This complicates the implementation and adds overhead in both space and time. Here I describe a Berger-Oliger characteristic AMR algorithm which instead recurses on null \\emph{slices}. This algorithm is very similar to the usual Cauchy Berger-Oliger algorithm, and uses relatively coarse-grained memory management, allowing entire null slices to be stored in contiguous arrays in memory. The algorithm is very efficient in both space and time. I describe discretizations yielding both 2nd and 4th order global accuracy. My code implementing the algorithm described here is included in the electronic supplementary materials accompanying this paper, and is freely available to other researchers under the terms of the GNU general public license.

Jonathan Thornburg

2009-08-31T23:59:59.000Z

132

A generic theorem prover of CSP refinement  

E-Print Network (OSTI)

Abstract. We describe a new tool called Csp-Prover which is an interactive theorem prover dedicated to refinement proofs within the process algebra Csp. It aims specifically at proofs for infinite state systems, which may also involve infinite non-determinism. Semantically, Csp-Prover supports both the theory of complete metric spaces as well as the theory of complete partial orders. Both these theories are implemented for infinite product spaces. Technically, Csp-Prover is based on the theorem prover Isabelle. It provides a deep encoding of Csp. The tool’s architecture follows a generic approach which makes it easy to adapt it for various Csp models besides those studied here: the stable failures model F and the traces model T. 1

Yoshinao Isobe; Markus Roggenbach

2005-01-01T23:59:59.000Z

133

Visualization of Scalar Adaptive Mesh Refinement Data  

SciTech Connect

Adaptive Mesh Refinement (AMR) is a highly effective computation method for simulations that span a large range of spatiotemporal scales, such as astrophysical simulations, which must accommodate ranges from interstellar to sub-planetary. Most mainstream visualization tools still lack support for AMR grids as a first class data type and AMR code teams use custom built applications for AMR visualization. The Department of Energy's (DOE's) Science Discovery through Advanced Computing (SciDAC) Visualization and Analytics Center for Enabling Technologies (VACET) is currently working on extending VisIt, which is an open source visualization tool that accommodates AMR as a first-class data type. These efforts will bridge the gap between general-purpose visualization applications and highly specialized AMR visual analysis applications. Here, we give an overview of the state of the art in AMR scalar data visualization research.

VACET; Weber, Gunther; Weber, Gunther H.; Beckner, Vince E.; Childs, Hank; Ligocki, Terry J.; Miller, Mark C.; Van Straalen, Brian; Bethel, E. Wes

2007-12-06T23:59:59.000Z

134

Visualization Tools for Adaptive Mesh Refinement Data  

SciTech Connect

Adaptive Mesh Refinement (AMR) is a highly effective method for simulations that span a large range of spatiotemporal scales, such as astrophysical simulations that must accommodate ranges from interstellar to sub-planetary. Most mainstream visualization tools still lack support for AMR as a first class data type and AMR code teams use custom built applications for AMR visualization. The Department of Energy's (DOE's) Science Discovery through Advanced Computing (SciDAC) Visualization and Analytics Center for Enabling Technologies (VACET) is currently working on extending VisIt, which is an open source visualization tool that accommodates AMR as a first-class data type. These efforts will bridge the gap between general-purpose visualization applications and highly specialized AMR visual analysis applications. Here, we give an overview of the state of the art in AMR visualization research and tools and describe how VisIt currently handles AMR data.

Weber, Gunther H.; Beckner, Vincent E.; Childs, Hank; Ligocki,Terry J.; Miller, Mark C.; Van Straalen, Brian; Bethel, E. Wes

2007-05-09T23:59:59.000Z

135

Large margin mixture of AR models for time series classification  

Science Conference Proceedings (OSTI)

In this paper, we propose the large margin autoregressive (LMAR) model for classification of time series patterns. The parameters of the generative AR models for different classes are estimated using the margin of the boundaries of AR models as the optimization ... Keywords: Generative and discriminative hybrid models, Large margin autoregressive model, Large margin mixture autoregressive model, Outlier detection, Rejection option, Time series classification

B. Venkataramana Kini; C. Chandra Sekhar

2013-01-01T23:59:59.000Z

136

A CSP Account of Event-B Refinement  

E-Print Network (OSTI)

Event-B provides a flexible framework for stepwise system development via refinement. The framework supports steps for (a) refining events (one-by-one), (b) splitting events (one-by-many), and (c) introducing new events. In each of the steps events can moreover possibly be anticipated or convergent. All such steps are accompanied with precise proof obligations. Still, it remains unclear what the exact relationship - in terms of a behaviour-oriented semantics - between an Event-B machine and its refinement is. In this paper, we give a CSP account of Event-B refinement, with a treatment for the first time of splitting events and of anticipated events. To this end, we define a CSP semantics for Event-B and show how the different forms of Event-B refinement can be captured as CSP refinement.

Schneider, Steve; Wehrheim, Heike; 10.4204/EPTCS.55.9

2011-01-01T23:59:59.000Z

137

Renewable Energy Financial Instruments Guidance Tool (REFINe) | Open Energy  

Open Energy Info (EERE)

Renewable Energy Financial Instruments Guidance Tool (REFINe) Renewable Energy Financial Instruments Guidance Tool (REFINe) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Renewable Energy Financial Instruments Guidance Tool (REFINe) Focus Area: Renewable Energy Topics: Policy Impacts Website: web.worldbank.org/WBSITE/EXTERNAL/TOPICS/EXTENERGY2/0,,contentMDK:2298 Equivalent URI: cleanenergysolutions.org/content/renewable-energy-financial-instrument Language: English Policies: "Deployment Programs,Financial Incentives" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. DeploymentPrograms: Training & Education Renewable Energy Financial Instruments Guidance Tool (REFINe) aims to assist policy in identifying appropriate financial instruments to scale-up

138

High Temperature Oxidation Behavior of Grain-refined Inconel 617 ...  

Science Conference Proceedings (OSTI)

The Cr-depleted zone of grain-refined alloy was thicker than that of the ... Intergranular Thermal Residual Strain in Rolled and Texture-free ?-Uranium.

139

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

Annual Energy Outlook 2012 (EIA)

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

140

Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales...  

Annual Energy Outlook 2012 (EIA)

250 Energy Information AdministrationPetroleum Marketing Annual 1999 Table 44. Refiner Motor Gasoline Volumes by Formulation, Sales Type, PAD District, and State (Thousand Gallons...

Note: This page contains sample records for the topic "higher refining margins" 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

Table 31. Refiner Motor Gasoline Prices by Grade, Sales Type ...  

U.S. Energy Information Administration (EIA)

U.S. Energy Information Administration/Petroleum Marketing Monthly February 2012 76 Table 31. Refiner Motor Gasoline Prices by Grade, Sales Type, PAD District, and State

142

WPSR provides comprehensive crude oil and refined products ...  

U.S. Energy Information Administration (EIA)

EIA's Weekly Petroleum Status Report (WPSR) is the most comprehensive weekly data available for U.S. crude oil and refined petroleum product balances.

143

Refiner Prices of Gasoline, All Grades - Sales for Resale  

U.S. Energy Information Administration (EIA)

Refiner Gasoline Prices by Grade and Sales Type ... Download Series History: Definitions, Sources & Notes: ... Alabama: 2.759: 2.740: 2.731: ...

144

Massachusetts Refiner Gasoline Prices by Grade and Sales Type  

U.S. Energy Information Administration (EIA)

Refiner Gasoline Prices by Grade and Sales Type (Dollars per Gallon Excluding Taxes) Area: ... History; Gasoline, All Grades : Through Retail Outlets: ...

145

Refining District Minnesota-Wisconsin-North Dakota-South Dakota ...  

U.S. Energy Information Administration (EIA)

Refining District Minnesota-Wisconsin-North Dakota-South Dakota Gas Plant Production of Natural Gas Liquids and Liquid Refinery Gases (Thousand Barrels)

146

Refining District Oklahoma-Kansas-Missouri Natural Gas Liquids ...  

U.S. Energy Information Administration (EIA)

Refining District Oklahoma-Kansas-Missouri Natural Gas Liquids and Liquid Refinery Gases Stocks at Natural Gas Processing Plants (Thousand Barrels)

147

Production, Refining and Recycling of Rare Earth Metals  

Science Conference Proceedings (OSTI)

This symposium is targeting on overview of the current state of the art for production, refining and recycling of the rare earth metals. In addition the symposium is ...

148

Rising challenges for the petroleum refiners in managing corrosion ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2014 TMS Annual Meeting & Exhibition. Symposium , Materials Aspects of Corrosion and Fouling in Oil Refining and Exploration.

149

Refiners react to changes in the pipeline infrastructure  

SciTech Connect

Petroleum pipelines have long been a critical component in the distribution of crude and refined products in the U.S. Pipelines are typically the most cost efficient mode of transportation for reasonably consistent flow rates. For obvious reasons, inland refineries and consumers are much more dependent on petroleum pipelines to provide supplies of crude and refined products than refineries and consumers located on the coasts. Significant changes in U.S. distribution patterns for crude and refined products are reshaping the pipeline infrastructure and presenting challenges and opportunities for domestic refiners. These changes are discussed.

Giles, K.A. [Barnes and Click Inc., Dallas, TX (United States)

1997-06-01T23:59:59.000Z

150

Electron Beam Cold Hearth Refining of Investment Casting ...  

Science Conference Proceedings (OSTI)

Electron Beam Cold Hearth Refining of Investment Casting Superalloys in a Large Production EB Furnace. Janine C. Borofka. Axe1 Johnson Metals, Inc.

151

CATALYTIC CONVERSION OF SOLVENT REFINED COAL TO LIQUID PRODUCTS  

E-Print Network (OSTI)

and Friedman, S. ,"Conversion of Anthraxylon - Kinetics ofiv- LBL 116807 CATALYTIC CONVERSION OF SOLVENT REFINED COALand Mechanisms of Coal Conversion to Clean Fuel,iI pre-

Tanner, K.I.

2010-01-01T23:59:59.000Z

152

Effect of Sonotrode Design on Simultaneous Grain Refinement and ...  

Science Conference Proceedings (OSTI)

P-18: Phosphorus Partitioning During EAF Refining of DRI Based Steel ... P-8: Evolution of ESR Technology and Equipment for Long Hollow Ingots Manufacture.

153

Massachusetts Propane Wholesale/Resale Volume by Refiners ...  

U.S. Energy Information Administration (EIA)

Massachusetts Propane Wholesale/Resale Volume by Refiners (Thousand Gallons per Day) Decade Year-0 Year-1 Year-2 Year-3 ... No.1 and No. 2 ...

154

Copper Refining Electrolyte Purification by the Use of Molecular ...  

Science Conference Proceedings (OSTI)

Presentation Title, Copper Refining Electrolyte Purification by the Use of Molecular ... An Experimental Study of Chemical Oxygen Demand Removal from the ...

155

Neutral Oil Loss During Alkali Refining - ResearchGate  

U.S. Energy Information Administration (EIA)

Neutral Oil Loss During Alkali Refining. Albert J. Dijkstra. Journal of Oil & Fat Industries (Impact ... Experiments with cotton oil and soybean o ...

156

Studies on Refining Cobalt Salt Solution by Extraction ...  

Science Conference Proceedings (OSTI)

Cobalt sulfate solution was refined by PC88A levextrel Resins which produced from HPD-100 type of ethylene benzene -divinylbenzene porous adsorption resin  ...

157

Table 40. Refiners' Total Operable Atmospheric Crude Oil ...  

U.S. Energy Information Administration (EIA)

Table 40. Refiners' Total Operable Atmospheric Crude Oil Distillation Capacity as of January 1, 2005 Companies with Capacity Over 100,000 bbl/cd

158

Table 5. Refiners' Total Operable Atmospheric Crude Oil ...  

U.S. Energy Information Administration (EIA)

Table 5. Refiners' Total Operable Atmospheric Crude Oil Distillation Capacity as of January 1, 2006 Companies with Capacity Over 100,000 bbl/cd

159

Refining District Minnesota-Wisconsin-North Dakota-South Dakota ...  

U.S. Energy Information Administration (EIA)

Refining District Minnesota-Wisconsin-North Dakota-South Dakota Gas Plant Production of Propane and Propylene (Thousand Barrels per Day)

160

RISK-INFORMED SAFETY MARGIN CHARACTERIZATION  

Science Conference Proceedings (OSTI)

The concept of safety margins has served as a fundamental principle in the design and operation of commercial nuclear power plants (NPPs). Defined as the minimum distance between a system’s “loading” and its “capacity”, plant design and operation is predicated on ensuring an adequate safety margin for safety-significant parameters (e.g., fuel cladding temperature, containment pressure, etc.) is provided over the spectrum of anticipated plant operating, transient and accident conditions. To meet the anticipated challenges associated with extending the operational lifetimes of the current fleet of operating NPPs, the United States Department of Energy (USDOE), the Idaho National Laboratory (INL) and the Electric Power Research Institute (EPRI) have developed a collaboration to conduct coordinated research to identify and address the technological challenges and opportunities that likely would affect the safe and economic operation of the existing NPP fleet over the postulated long-term time horizons. In this paper we describe a framework for developing and implementing a Risk-Informed Safety Margin Characterization (RISMC) approach to evaluate and manage changes in plant safety margins over long time horizons.

Nam Dinh; Ronaldo Szilard

2009-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "higher refining margins" 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

Heat Exchanger Thermal Performance Margin Guidelines  

Science Conference Proceedings (OSTI)

This report provides utility engineers with guidance on how to identify the thermal performance margin that is available in a given heat exchanger by comparing the thermal performance requirement at design limiting conditions to the thermal performance capability of the heat exchanger under those same conditions.

2005-11-30T23:59:59.000Z

162

Improving Ariadne's Bundle by Following Multiple Threads in Abstraction Refinement  

Science Conference Proceedings (OSTI)

The authors propose a scalable abstraction-refinement method for model checking invariant properties on large sequential circuits, which is based on fine-grain abstraction and simultaneous analysis of all abstract counterexamples of the shortest length. ... Keywords: Abstraction refinement, binary decision diagram (BDD), formal verification, model checking, satisfiability (SAT)

Chao Wang; Bing Li; HoonSang Jin; G. D. Hachtel; F. Somenzi

2006-11-01T23:59:59.000Z

163

Green Vegetable Oil ProcessingChapter 9 Physical Refining  

Science Conference Proceedings (OSTI)

Green Vegetable Oil Processing Chapter 9 Physical Refining Processing eChapters Processing 7E84B6524348AB59C4DF2B6D388E2582 AOCS Press Downloadable pdf of Chapter 9 Physical Refining from the book ...

164

Refining and End Use Study of Coal Liquids  

SciTech Connect

This report summarizes revisions to the design basis for the linear programing refining model that is being used in the Refining and End Use Study of Coal Liquids. This revision primarily reflects the addition of data for the upgrading of direct coal liquids.

None

1997-10-01T23:59:59.000Z

165

Augmenting Counterexample-Guided Abstraction Refinement with Proof Templates  

Science Conference Proceedings (OSTI)

Existing software model checkers based on predicate abstraction and refinement typically perform poorly at verifying the absence of buffer overflows, with analyses depending on the sizes of the arrays checked. We observe that many of these analyses can ... Keywords: safety verification, counterexample-guided abstraction refinement, proof templates, software model checkers, predicate abstraction, buffer overflows verification, array traversal idioms, PtYasm, Verisec suite

T. E. Hart; K. Ku; A. Gurfinkel; M. Chechik; D. Lie

2008-09-01T23:59:59.000Z

166

Hierarchical Partitioning Techniques for Structured Adaptive Mesh Refinement Applications  

Science Conference Proceedings (OSTI)

This paper presents the design and preliminary evaluation of hierarchical partitioning and load-balancing techniques for distributed structured adaptive mesh refinement (SAMR) applications. The overall goal of these techniques is to enable the load distribution ... Keywords: distributed computing, dynamic load balancing, hierarchical partitioning algorithm, structured adaptive mesh refinement

Xiaolin Li; Manish Parashar

2004-06-01T23:59:59.000Z

167

Steel refining with an electrochemical cell  

DOE Patents (OSTI)

Apparatus is described for processing a metallic fluid containing iron oxide, container for a molten metal including an electrically conductive refractory disposed for contact with the molten metal which contains iron oxide, an electrolyte in the form of a basic slag on top of the molten metal, an electrode in the container in contact with the slag electrically separated from the refractory, and means for establishing a voltage across the refractory and the electrode to reduce iron oxide to iron at the surface of the refractory in contact with the iron oxide containing fluid. A process is disclosed for refining an iron product containing not more than about 10% by weight oxygen and not more than about 10% by weight sulfur, comprising providing an electrolyte of a slag containing one or more of calcium oxide, magnesium oxide, silica or alumina, providing a cathode of the iron product in contact with the electrolyte, providing an anode in contact with the electrolyte electrically separated from the cathode, and operating an electrochemical cell formed by the anode, the cathode and the electrolyte to separate oxygen or sulfur present in the iron product therefrom. 2 figs.

Blander, M.; Cook, G.M.

1988-05-17T23:59:59.000Z

168

Marginally trapped surfaces in spaces of oriented geodesics  

E-Print Network (OSTI)

We investigate the geometric properties of marginally trapped surfaces (surfaces which have null mean curvature vector) in the spaces of oriented geodesics of Euclidean 3-space and hyperbolic 3-space, endowed with their canonical neutral Kaehler structures. We prove that every rank one surface in these four manifolds is marginally trapped. In the Euclidean case we show that Lagrangian rotationally symmetric sections are marginally trapped and construct an explicit family of marginally trapped Lagrangian tori. In the hyperbolic case we explore the relationship between marginally trapped and Weingarten surfaces, and construct examples of marginally trapped surfaces with various properties.

Brendan Guilfoyle; Nikos Georgiou

2013-05-28T23:59:59.000Z

169

Ocean Margins Programs, Phase I research summaries  

Science Conference Proceedings (OSTI)

During FY 1992, the DOE restructured its regional coastal-ocean programs into a new Ocean Margins Program (OMP), to: Quantify the ecological and biogeochemical processes and mechanisms that affect the cycling, flux, and storage of carbon and other biogenic elements at the land/ocean interface; Define ocean-margin sources and sinks in global biogeochemical cycles, and; Determine whether continental shelves are quantitatively significant in removing carbon dioxide from the atmosphere and isolating it via burial in sediments or export to the interior ocean. Currently, the DOE Ocean Margins Program supports more than 70 principal and co-principal investigators, spanning more than 30 academic institutions. Research funded by the OMP amounted to about $6.9M in FY 1994. This document is a collection of abstracts summarizing the component projects of Phase I of the OMP. This phase included both research and technology development, and comprised projects of both two and three years duration. The attached abstracts describe the goals, methods, measurement scales, strengths and limitations, and status of each project, and level of support. Keywords are provided to index the various projects. The names, addresses, affiliations, and major areas of expertise of the investigators are provided in appendices.

Verity, P. [ed.

1994-08-01T23:59:59.000Z

170

REFINING AND END USE STUDY OF COAL LIQUIDS  

Science Conference Proceedings (OSTI)

Two direct coal liquids were evaluated by linear programming analysis to determine their value as petroleum refinery feedstock. The first liquid, DL1, was produced from bitiuminous coal using the Hydrocarbon Technologies, Inc.(HTI) two-stage hydrogenation process in Proof of Concept Run No.1, POC-1. The second liquid, DL2,was produced from sub-bituminous coal using a three-stage HTI process in Proof of Concept Run No. 2, POC-2; the third stage being a severe hydrogenation process. A linear programming (LP) model was developed which simulates a generic 150,000 barrel per day refinery in the Midwest U.S. Data from upgrading tests conducted on the coal liquids and related petroleum fractions in the pilot plant testing phase of the Refining and End Use Study was inputed into the model. The coal liquids were compared against a generic petroleum crude feedstock. under two scenarios. In the first scenario, it was assumed that the refinery capacity and product slate/volumes were fixed. The coal liquids would be used to replace a portion of the generic crude. The LP results showed that the DL1 material had essentially the same value as the generic crude. Due to its higher quality, the DL2 material had a value of approximately 0.60 $/barrel higher than the petroleum crude. In the second scenario, it was assumed that a market opportunity exists to increase production by one-third. This requires a refinery expansion. The feedstock for this scenario could be either 100% petroleum crude or a combination of petroleum crude and the direct coal liquids. Linear programming analysis showed that the capital cost of the refinery expansion was significantly less when coal liquids are utilized. In addition, the pilot plant testing showed that both of the direct coal liquids demonstrated superior catalytic cracking and naphtha reforming yields. Depending on the coal liquid flow rate, the value of the DL1 material was 2.5-4.0 $/barrel greater than the base petroleum crude, while the DL2 material was 3.0-4.0 /barrel higher than the crude. Co-processing the coal liquids with lower quality, less expensive petroleum crudes that have higher sulfur, resid and metals contents was also examined. The coal liquids have higher values under this scenario, but the values are dependent on the prices of the alternative crudes.

NONE

1998-08-12T23:59:59.000Z

171

Financial News for Major Energy Companies, July - September 2004  

Gasoline and Diesel Fuel Update (EIA)

primarily because of higher crude oil prices, higher foreign production of crude oil, higher refining margins, and higher refinery throughput. Overall, the petroleum line...

172

Are Refiners Entering a Golden Age or a Short Cycle?  

U.S. Energy Information Administration (EIA)

... the industry has recently seen an increase in margins and price differentials. However views vary as to the sustainability of this profitability upswing.

173

Table 24. Refining Industry Energy Consumption  

Gasoline and Diesel Fuel Update (EIA)

- Corrections to Tables 24 to 32 - Corrections to Tables 24 to 32 Table 24. Refining Industry Energy Consumption 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2002- 2025 Carbon Dioxide Emissions 4/ (million metric tons) 190.4 185.7 188.0 191.3 207.3 215.6 220.0 222.8 225.1 226.3 228.0 230.7 234.1 237.5 238.5 239.4 239.4 238.6 240.6 240.5 242.2 244.2 245.9 246.3 246.6 1.2% Table 25. Food Industry Energy Consumption 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2002- 2025 Carbon Dioxide Emissions 3/ (million metric tons) 87.8 89.4 87.5 87.8 89.2 90.2 90.9 91.4 92.2 93.5 94.5 95.7 96.7 97.7 98.6 99.6 100.8 101.9 102.9 104.1 105.4 107.0 108.7 110.3 112.1 1.0% Table 26. Paper Industry Energy Consumption 2001 2002 2003 2004 2005 2006 2007

174

Hydroprocessing of solvent-refined coal: catalyst-screening results  

SciTech Connect

This report presents the results of screening four catalysts for hydroprocessing a 50 wt% mixture of SRC-I in a prehydrogenated creosote oil using a continuous flow unit. All catalysts employed were nickel-molybdates with varying properties. Reaction conditions were 2000 psi, 8 SCFH of hydrogen, volume hourly space velocity of 0.6 to 1.0 cc of SRC-I/hr/cc of catalyst, and 48 hours at 750/sup 0/F followed by 72 hours at 780/sup 0/F. The results indicate that the Shell 324 catalyst is best for hydrogenation of the feedstock but only marginally better than CB 81-44 for denitrogenation. The CB 81-44 catalyst may be slightly better than Shell 324 for the conversion of the +850/sup 0/F fraction of the feedstock. Desulfurization was uniformly high for all catalysts. Catalysts with a bimodal pore size distribution (i.e., SMR7-6137(1)) appear to be better for denitrogenation than unimodal catalysts (i.e., SMR7-6137(4)) containing the same metals loading. Unimodal catalysts (i.e., Shell 324) with higher metals loadings are comparable to bimodal catalysts (i.e., CB 81-44) containing less metals. The results indicate that pore size distribution and metals loading are important parameters for high activity. Catalysts with a unimodal pore volume distribution are capable of being restored to their original state, while bimodal ones experience a loss in surface area and pore volume and an increase in pellet density. This is attributed to the more efficient use of the interior surface area of the catalyst, which results in higher accumulation of coke and metals. Since coke can be removed via controlled oxidation, the irreversible loss is due to the higher concentrations of metals in the catalyst.

Stiegel, G.J.; Tischer, R.E.; Polinski, L.M.

1982-03-01T23:59:59.000Z

175

Changing System Interfaces Consistently: a New Refinement Strategy for CSP B  

E-Print Network (OSTI)

Changing System Interfaces Consistently: a New Refinement Strategy for CSP B Steve Schneider refinement in the context of CSP B. Our motivation to include this notion of refinement within the CSP B to change the events of a CSP process and the B machines when refining a system. Notions of refinement based

Doran, Simon J.

176

Integrated process for the solvent refining of coal  

SciTech Connect

A process is set forth for the integrated liquefaction of coal by the catalytic solvent refining of a feed coal in a first stage to liquid and solid products and the catalytic hydrogenation of the solid product in a second stage to produce additional liquid product. A fresh inexpensive, throw-away catalyst is utilized in the second stage hydrogenation of the solid product and this catalyst is recovered and recycled for catalyst duty in the solvent refining stage without any activation steps performed on the used catalyst prior to its use in the solvent refining of feed coal.

Garg, Diwakar (Macungie, PA)

1983-01-01T23:59:59.000Z

177

,"Weekly Refiner Net Production"  

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

Refiner Net Production" Refiner Net Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Weekly Refiner Net Production",21,"Weekly","12/13/2013","6/4/2010" ,"Release Date:","12/18/2013" ,"Next Release Date:","12/27/2013" ,"Excel File Name:","pet_pnp_wprodr_s1_w.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_pnp_wprodr_s1_w.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov" ,,"(202) 586-8800",,,"12/18/2013 10:39:21 AM"

178

Energy savings in petroleum refining using absorption heat pumping  

SciTech Connect

There is now a new and highly economic technology available for saving energy in petroleum refineries. This technology--absorption heat pumping--is gaining rapid acceptance overseas, but to date is relatively unknown and untried in the U.S. Packaged units now can be supplied in virtually any capacity rating desired. These units are economical, with paybacks typically in less than two years, and are highly reliable compared to heat pumps incorporating large rotating members. This paper provides an overview of how an absorption heat pump (AHP) works, the different configurations possible, and how they can be applied to fractional distillation in a petroleum refinery. A detailed example flowsheet and economic estimate are presented for a specific petroleum refinery application--modernization of the energy intensive alkylation unit--which is of interest currently. A stand-alone isobutane splitter is compared to a mechanically heat pumped alternative and an absorption heat pumped alternative. In general, the AHP requires less than half the capital investment of the next best alternative and provides numerous important intangible benefits as well. The AHP will show even larger margins of advantage on columns involving higher temperature differentials between top and bottom (temperature ''lifts'').

Davidson, W.F.; Campagne, W.V.L.

1985-03-01T23:59:59.000Z

179

2012 Short Course Edible Oils Refining Update: From the Fundamentals to New Technologies  

Science Conference Proceedings (OSTI)

Edible Oils Refining Update: From the Fundamentals to New Technologies held at the 103rd AOCS Annual Meeting and Expo. 2012 Short Course Edible Oils Refining Update: From the Fundamentals to New Technologies Edible Oils Refining Update: From the Fund

180

Developing Refined Products Storage in the Strategic Petroleum Reserve |  

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

Refined Products Storage in the Strategic Petroleum Refined Products Storage in the Strategic Petroleum Reserve Developing Refined Products Storage in the Strategic Petroleum Reserve May 12, 2009 - 3:14pm Addthis Statement of David F. Johnson, Deputy Assistant Secretary for Petroleum Reserves before the Committee on Energy and Natural Resources, United States Senate. Mr. Chairman and members of the Committee, I am pleased to be here today to discuss the issue of developing refined products storage in the Strategic Petroleum Reserve. As you know, the SPR was established by Congress through passage of the Energy Policy and Conservation Act in 1975 in response to the Arab oil embargoes. The primary policy of the U.S. petroleum stockpiling program has been to store crude oil. The SPR has served to protect our Nation from crude oil supply interruptions for over three

Note: This page contains sample records for the topic "higher refining margins" 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

Secretary Bodman Tours Refinery and Calls for More Domestic Refining  

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

Tours Refinery and Calls for More Domestic Tours Refinery and Calls for More Domestic Refining Capacity Secretary Bodman Tours Refinery and Calls for More Domestic Refining Capacity May 18, 2006 - 10:43am Addthis Highlights President Bush's Four-Point Plan to Combat High Energy Prices PORT ARTHUR, TX - Secretary of Energy Samuel W. Bodman today renewed the call for expanded oil refining capacity in the United States and discussed additional steps the Department of Energy (DOE) is taking to prepare for the upcoming hurricane season. Secretary Bodman made the statements after touring the Motiva Refinery in Port Arthur, Texas. "We need a more robust energy sector; and one way to do that is to strengthen and expand our domestic oil refining capacity. We're hopeful that Motiva will continue to work to expand their capacity to 600,000

182

Evaluation of Electron-Beam Cold Hearth Refining (EBCHR) of ...  

Science Conference Proceedings (OSTI)

EVALUATION OF ELECTRON-BEAM COLD HEARTH REFINING (EBCHR) OF. VIRGIN AND REVERT IN738LC. P.N. Quested*, M. McLean* and M.R. Winstonet.

183

Polygons in Buildings and their Refined Side Lengths  

E-Print Network (OSTI)

1999. [Bro] K. Brown, Buildings, Springer, 1989. [BuBI] D.AMS, 2001. [D] M. Davis, Buildings are CAT(0), in “Geometryat Springerlink.com POLYGONS IN BUILDINGS AND THEIR REFINED

Kapovich, Michael; Leeb, Bernhard; Millson, John J.

2009-01-01T23:59:59.000Z

184

California Total Gasoline Retail Sales by Refiners (Thousand ...  

U.S. Energy Information Administration (EIA)

California Total Gasoline Retail Sales by Refiners (Thousand Gallons per Day) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9; 1990's ...

185

California Propane Wholesale/Resale Volume by Refiners (Thousand ...  

U.S. Energy Information Administration (EIA)

California Propane Wholesale/Resale Volume by Refiners (Thousand Gallons per Day) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9; 1980's:

186

,"U.S. Refiner Acquisition Cost of Crude Oil"  

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

Acquisition Cost of Crude Oil" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Refiner...

187

Tennessee Propane Wholesale/Resale Volume by Refiners ...  

U.S. Energy Information Administration (EIA)

Tennessee Propane Wholesale/Resale Volume by Refiners (Thousand Gallons per Day) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 ... No.1 and No. 2 ...

188

NETL: Oil & Natural Gas Projects 00516 North Dakota Refining...  

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

the North Dakota Refining Capacity study is to assess the feasibility of increasing the oil refinery capacity in North Dakota, and, if possible, determine the scale of such an...

189

Evaluation of Cold Hearth Refined Inconel Alloy 718  

Science Conference Proceedings (OSTI)

refining of superalloys. This ha8 been identified as possibly the be8t way of ... thie material involving chemical and microetructural, as we11 as cl8anliness and.

190

CATALYTIC CONVERSION OF SOLVENT REFINED COAL TO LIQUID PRODUCTS  

E-Print Network (OSTI)

I. Solvent Refined Coal II. Catalysts III. Purpose andSondreal, E.A. , "Viscosity of Coal Liquids - The Effect ofAnthraxylon - Kinetics of Coal Hydrogenation," Ind. and Eng.

Tanner, K.I.

2010-01-01T23:59:59.000Z

191

Data refinement in a market research applications' data production process  

Science Conference Proceedings (OSTI)

In this contribution, we will show how empirically collected field data for a market research application are refined in a stepwise manner and enriched into end-user market reports and charts. The collected data are treated by selections, transformations, ...

Thomas Ruf; Thomas Kirsche

2005-01-01T23:59:59.000Z

192

Query reformulation and refinement using NLP-based sentence clustering  

Science Conference Proceedings (OSTI)

We have developed an interactive query refinement tool that helps users search a knowledge base for solutions to problems with electronic equipment. The system is targeted towards non-technical users, who are often unable to formulate precise problem ...

Frédéric Roulland; Aaron Kaplan; Stefania Castellani; Claude Roux; Antonietta Grasso; Karin Pettersson; Jacki O'Neill

2007-04-01T23:59:59.000Z

193

MODIS Cloud-Top Property Refinements for Collection 6  

Science Conference Proceedings (OSTI)

This paper summarizes the Collection-6 refinements in the Moderate Resolution Imaging Spectroradiometer (MODIS) operational cloud-top properties algorithm. The focus is on calibration improvements and on cloud macrophysical properties including ...

Bryan A. Baum; W. Paul Menzel; Richard A. Frey; David C. Tobin; Robert E. Holz; Steve A. Ackerman; Andrew K. Heidinger; Ping Yang

2012-06-01T23:59:59.000Z

194

Basics of Edible Oil Processing and Refining Short Course  

Science Conference Proceedings (OSTI)

Organizer: Dr. Sefa Koseoglu, Filtration and Membrane World LLC, USA. This is a must for engineers, chemists, and any other technicians who want to get a good understanding of edible oil refining/processing. ...

195

Michigan Total Gasoline Retail Sales by Refiners (Thousand Gallons ...  

U.S. Energy Information Administration (EIA)

Michigan Total Gasoline Retail Sales by Refiners (Thousand Gallons per Day) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9; 1990's: 3,004.6:

196

South Dakota Gasoline Midgrade Bulk Sales (Volume) by Refiners ...  

U.S. Energy Information Administration (EIA)

South Dakota Gasoline Midgrade Bulk Sales (Volume) by Refiners (Thousand Gallons per Day) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9;

197

Characterizing entanglement with global and marginal entropic measures  

SciTech Connect

We qualify the entanglement of arbitrary mixed states of bipartite quantum systems by comparing global and marginal mixednesses quantified by different entropic measures. For systems of two qubits we discriminate the class of maximally entangled states with fixed marginal mixednesses, and determine an analytical upper bound relating the entanglement of formation to the marginal linear entropies. This result partially generalizes to mixed states the quantification of entanglement with marginal mixednesses holding for pure states. We identify a class of entangled states that, for fixed marginals, are globally more mixed than product states when measured by the linear entropy. Such states cannot be discriminated by the majorization criterion.

Adesso, Gerardo; Illuminati, Fabrizio; De Siena, Silvio [Dipartimento di Fisica 'E. R. Caianiello', Universita di Salerno, INFM UdR di Salerno, INFN Sezione di Napoli, Gruppo Collegato di Salerno, 84081 Baronissi, SA (Italy)

2003-12-01T23:59:59.000Z

198

Hierarchical Marginal Land Assessment for Land Use Planning  

SciTech Connect

Marginal land provides an alternative potential for food and bioenergy production in the face of limited land resources; however, effective assessment of marginal lands is not well addressed. Concerns over environmental risks, ecosystem services and sustainability for marginal land have been widely raised. The objective of this study was to develop a hierarchical marginal land assessment framework for land use planning and management. We first identified major land functions linking production, environment, ecosystem services and economics, and then classified land resources into four categories of marginal land using suitability and limitations associated with major management goals, including physically marginal land, biologically marginal land, environmental-ecological marginal land, and economically marginal land. We tested this assessment framework in south-western Michigan, USA. Our results indicated that this marginal land assessment framework can be potentially feasible on land use planning for food and bioenergy production, and balancing multiple goals of land use management. We also compared our results with marginal land assessment from the Conservation Reserve Program (CRP) and land capability classes (LCC) that are used in the US. The hierarchical assessment framework has advantages of quantitatively reflecting land functions and multiple concerns. This provides a foundation upon which focused studies can be identified in order to improve the assessment framework by quantifying high-resolution land functions associated with environment and ecosystem services as well as their criteria are needed to improve the assessment framework.

Kang, Shujiang [ORNL; Post, Wilfred M [ORNL; Wang, Dali [ORNL; Nichols, Dr Jeff A [ORNL; Bandaru, Vara Prasad [ORNL

2013-01-01T23:59:59.000Z

199

Former Corporation/Refiner Total Atmospheric Crude Oil Distillation Capacity  

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

Former Corporation/Refiner Former Corporation/Refiner Total Atmospheric Crude Oil Distillation Capacity (bbl/cd) New Corporation/Refiner Date of Sale Table 12. Refinery Sales During 2012 Antelope Refining LLC Garco Energy LLC 3/12 Douglas, WY 3,800 Delta Air Lines/Monroe Energy LLC ConocoPhillips Company 4/12 Trainer, PA 185,000 Phillips 66 Company ConocoPhillips Company 5/12 Belle Chasse, LA 252,000 Billings, MT 59,000 Ferndale, WA 101,000 Linden, NJ 238,000 Ponca City, OK 198,400 Rodeo, CA 120,200 Sweeny, TX 247,000 Westlake, LA 239,400 Wilmington, CA 139,000 Nustar Asphalt LLC (50% Nustar Energy LP and 50% Lindsay Goldberg LLC) Nustar Energy LP/Nustar Asphalt Refining LLC 9/12 Paulsboro, NJ 70,000 Savannah, GA 28,000 Carlyle Group/Philadelphia Energy Solutions Refining and Marketing LLC Sunoco Inc./Sunoco Inc. R&M

200

Risk Informed Safety Margin Characterization (RISMC) Advanced Test Reactor  

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

Risk Informed Safety Margin Characterization (RISMC) Advanced Test Risk Informed Safety Margin Characterization (RISMC) Advanced Test Reactor Demonstration Case Study Risk Informed Safety Margin Characterization (RISMC) Advanced Test Reactor Demonstration Case Study Safety is central to the design, licensing, operation, and economics of Nuclear Power Plants (NPPs). Consequently, the ability to better characterize and quantify safety margin holds the key to improved decision making about light water reactor design, operation, and plant life extension. A systematic approach to characterization of safety margins and the subsequent margins management options represents a vital input to the licensee and regulatory analysis and decision making that will be involved. The purpose of the Risk Informed Safety Margin Characterization (RISMC)

Note: This page contains sample records for the topic "higher refining margins" 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

Regional differences for cost of crude oil to refiners widened in ...  

U.S. Energy Information Administration (EIA)

The cost of crude oil to refiners varies across regions based on the different types of crude oil available to refiners and transportation bottlenecks in that region.

202

Arkansas Kerosene-Type Jet Fuel Retail Sales by Refiners (Thousand ...  

U.S. Energy Information Administration (EIA)

Referring Pages: Arkansas Kerosene-Type Jet Fuel Refiner Sales Volumes; Arkansas Sales to End Users Refiner Sales Volumes of Aviation Fuels, Kerosene, Propane, No.1 ...

203

MARGINAL EXPENSE OIL WELL WIRELESS SURVEILLANCE MEOWS  

SciTech Connect

A marginal expense oil well wireless surveillance system to monitor system performance and production from rod-pumped wells in real time from wells operated by Vaquero Energy in the Edison Field, Main Area of Kern County in California has been successfully designed and field tested. The surveillance system includes a proprietary flow sensor, a programmable transmitting unit, a base receiver and receiving antenna, and a base station computer equipped with software to interpret the data. First, the system design is presented. Second, field data obtained from three wells is shown. Results of the study show that an effective, cost competitive, real-time wireless surveillance system can be introduced to oil fields across the United States and the world.

Mason M. Medizade; John R. Ridgely; Donald G. Nelson

2004-11-01T23:59:59.000Z

204

ECN GHG Marginal Abatement Cost curves (NAMAC) | Open Energy Information  

Open Energy Info (EERE)

ECN GHG Marginal Abatement Cost curves (NAMAC) ECN GHG Marginal Abatement Cost curves (NAMAC) Jump to: navigation, search Tool Summary Name: ECN GHG Marginal Abatement Cost curves for the Non-Annex I region (NAMAC) Agency/Company /Organization: Energy Research Centre of the Netherlands Sector: Energy, Land Topics: Resource assessment, Pathways analysis, Background analysis Website: www.ecn.nl/docs/library/report/2006/e06060.pdf References: GHG Marginal Abatement Cost curves for the Non-Annex I region[1] GHG Marginal Abatement Cost curves for the Non-Annex I region (NAMAC) (1999-present) ECN has developed a Marginal Abatement Cost curve containing detailed information on mitigation technologies and abatement costs in developing countries. * The MAC was first developed for the Dutch Ministry of Foreign

205

Intrusion Margins and Associated Fractures | Open Energy Information  

Open Energy Info (EERE)

Intrusion Margins and Associated Fractures Intrusion Margins and Associated Fractures Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Intrusion Margins and Associated Fractures Dictionary.png Intrusion Margins and Associated Fractures: No definition has been provided for this term. Add a Definition Controlling Structures List of controlling structures typically associated with geothermal systems: Major Normal Fault Termination of a Major Normal Fault Stepover or Relay Ramp in Normal Fault Zones Apex or Salient of Normal Fault Fault Intersection Accommodation Zone Displacement Transfer Zone Pull-Apart in Strike-Slip Fault Zone Intrusion Margins and Associated Fractures Stratigraphic Boundaries Fissure Swarms Caldera Rim Margins Lithologically Controlled Fractures caused by igneous activity creates permeability, allowing water

206

Refining Crude Oil - Energy Explained, Your Guide To Understanding Energy -  

Gasoline and Diesel Fuel Update (EIA)

Oil and Petroleum Products > Refining Crude Oil Oil and Petroleum Products > Refining Crude Oil Energy Explained - Home What Is Energy? Forms of Energy Sources of Energy Laws of Energy Units and Calculators Energy Conversion Calculators British Thermal Units (Btu) Degree-Days U.S. Energy Facts State and U.S. Territory Data Use of Energy In Industry For Transportation In Homes In Commercial Buildings Efficiency and Conservation Energy and the Environment Greenhouse Gases Effect on the Climate Where Emissions Come From Outlook for Future Emissions Recycling and Energy Nonrenewable Sources Oil and Petroleum Products Refining Crude Oil Where Our Oil Comes From Imports and Exports Offshore Oil and Gas Use of Oil Prices and Outlook Oil and the Environment Gasoline Where Our Gasoline Comes From Use of Gasoline Prices and Outlook

207

Refinement and Verification of Real-Time Systems  

E-Print Network (OSTI)

This paper discusses highly general mechanisms for specifying the refinement of a real-time system as a collection of lower level parallel components that preserve the timing and functional requirements of the upper level specification. These mechanisms are discussed in the context of ASTRAL, which is a formal specification language for real-time systems. Refinement is accomplished by mapping all of the elements of an upper level specification into lower level elements that may be split among several parallel components. In addition, actions that can occur in the upper level are mapped to actions of components operating at the lower level. This allows several types of implementation strategies to be specified in a natural way, while the price for generality (in terms of complexity) is paid only when necessary. The refinement mechanisms are first illustrated using a simple digital circuit; then, through a highly complex phone system; finally, design guidelines gleaned from these specifications are presented.

Kolano, Paul Z; Kemmerer, Richard A; Mandrioli, Dino

2010-01-01T23:59:59.000Z

208

Algebraic specification and program development by stepwise refinement (Extended Abstract)  

E-Print Network (OSTI)

. Various formalizations of the concept of "refinement step" as used in the formal development of programs from algebraic specifications are presented and compared. 1 Introduction Algebraic specification aims to provide a formal basis to support the systematic development of correct programs from specifications by means of verified refinement steps. Obviously, a central piece of the puzzle is how best to formalize concepts like "specification", "program" and "refinement step". Answers are required that are simple, elegant and general and which enjoy useful properties, while at the same time taking proper account of the needs of practice. Here I will concentrate on the last of these concepts, but first I need to deal with the other two. For "program", I take the usual approach of algebraic specification whereby programs are modelled as many-sorted algebras consisting of a collection of sets of data values together with functions over those sets. This level of abstraction is commens...

Donald Sannella

1999-01-01T23:59:59.000Z

209

The US petroleum refining industry in the 1980's  

SciTech Connect

As part of the EIA program on petroleum, The US Petroleum Refining Industry in the 1980's, presents a historical analysis of the changes that took place in the US petroleum refining industry during the 1980's. It is intended to be of interest to analysts in the petroleum industry, state and federal government officials, Congress, and the general public. The report consists of six chapters and four appendices. Included is a detailed description of the major events and factors that affected the domestic refining industry during this period. Some of the changes that took place in the 1980's are the result of events that started in the 1970's. The impact of these events on US refinery configuration, operations, economics, and company ownership are examined. 23 figs., 11 tabs.

Not Available

1990-10-11T23:59:59.000Z

210

Marginal, Erodible Land Retirement Policy (Minnesota) | Department of  

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

Marginal, Erodible Land Retirement Policy (Minnesota) Marginal, Erodible Land Retirement Policy (Minnesota) Marginal, Erodible Land Retirement Policy (Minnesota) < Back Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Residential Installer/Contractor Rural Electric Cooperative Tribal Government Low-Income Residential Schools Retail Supplier Institutional Multi-Family Residential Systems Integrator Fuel Distributor Nonprofit General Public/Consumer Transportation Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Minnesota Program Type Environmental Regulations It is state policy to encourage the retirement of marginal, highly erodible

211

Marginal Abatement Cost Tool (MACTool) | Open Energy Information  

Open Energy Info (EERE)

Marginal Abatement Cost Tool (MACTool) Marginal Abatement Cost Tool (MACTool) Jump to: navigation, search Tool Summary Name: Marginal Abatement Cost Tool (MACTool) Agency/Company /Organization: World Bank Climate Smart Planning Platform Sector: Climate, Energy Topics: Analysis Tools User Interface: Spreadsheet Complexity/Ease of Use: Simple Website: climatesmartplanning.org/node/33 Cost: Free Related Tools Global Relationship Assessment to Protect the Environment (GRAPE) Global Trade and Analysis Project (GTAP) Model MIT Emissions Prediction and Policy Analysis (EPPA) Model ... further results Find Another Tool FIND DEVELOPMENT IMPACTS ASSESSMENT TOOLS A spreadsheet tool for building marginal abatement cost curves, and for calculating break-even carbon prices. Supports comparison of costs and

212

A "joint+marginal" approach to parametric polynomial optimization  

E-Print Network (OSTI)

Jan 13, 2010 ... A "joint+marginal" approach to parametric polynomial optimization. Jean B. Lasserre(lasserre ***at*** laas.fr). Abstract: Given a compact ...

213

Drivers of gross margins in UK retail electricity.  

E-Print Network (OSTI)

?? This thesis aims at explaining why the UK residential electricity (retail) market enjoys high gross margins in comparison to Vattenfall’s markets in for example… (more)

Törnqvist, Dan

2007-01-01T23:59:59.000Z

214

National oil companies' presence to hike US refining competition  

Science Conference Proceedings (OSTI)

This paper reports that the downstream segment of the U.S. petroleum business is virtually certain to become more competitive because of the growing presence of national oil companies in the country's refining industry. That's a forecast by New York investment firm Kidder Peabody. It cites a plan by Mexico's Petroleos Mexicanos (Pemex) to form a joint venture with Shell Oil Co. covering Shell's 225,000 b/d Deer Park, Tex., refinery as the latest example of national oil companies' movement into U.S. refining.

Not Available

1992-09-21T23:59:59.000Z

215

Grain Refinement in TiC-Ni3Al Composites  

DOE Green Energy (OSTI)

The Cooperative Research and Development Agreement (CRADA) was to develop composites of TiC-Ni{sub 3}Al with refined grain microstructures for application in diesel engine fuel injection devices. Grain refinement is important for improved wear resistance and high strength for the applications of interest. Attrition milling effectively reduces the initial particle size and leads to a reduction of the final grain size. However, an increase in the oxygen content occurs concomitantly with the grinding operation and decreased densification of the compacts occurs during sintering.

Tiegs, T.N.

2001-01-30T23:59:59.000Z

216

Bounds for the sum of dependent risks having overlapping marginals  

Science Conference Proceedings (OSTI)

We describe several analytical and numerical procedures to obtain bounds on the distribution function of a sum of n dependent risks having fixed overlapping marginals. As an application, we produce bounds on quantile-based risk measures for portfolios ... Keywords: 60E05, 60E15, Copula functions, Dependent risks, Fréchet bounds, Mass transportation theory, Overlapping marginals, Value-at-Risk

Paul Embrechts; Giovanni Puccetti

2010-01-01T23:59:59.000Z

217

A linear combination of classifiers via rank margin maximization  

Science Conference Proceedings (OSTI)

The method we present aims at building a weighted linear combination of already trained dichotomizers, where the weights are determined to maximize the minimum rank margin of the resulting ranking system. This is particularly suited for real applications ... Keywords: combination of classifiers, margin, ranking

Claudio Marrocco; Paolo Simeone; Francesco Tortorella

2010-08-01T23:59:59.000Z

218

Assessment of Biomass Resources from Marginal Lands in APEC Economies  

DOE Green Energy (OSTI)

The goal of this study is to examine the marginal lands in Asia-Pacific Economic Cooperation (APEC) economies and evaluate their biomass productivity potential. Twelve categories of marginal lands are identified using the Global Agro-Ecological Zones system of the United Nations Food and Agriculture Organization.

Milbrandt, A.; Overend, R. P.

2009-08-01T23:59:59.000Z

219

A risk-informed approach to safety margins analysis  

SciTech Connect

The Risk Informed Safety Margins Characterization (RISMC) Pathway is a systematic approach developed to characterize and quantify safety margins of nuclear power plant structures, systems and components. The model has been tested on the Advanced Test Reactor (ATR) at Idaho National Lab.

Curtis Smith; Diego Mandelli

2013-07-01T23:59:59.000Z

220

Testing for Refinement in CSP Ana Cavalcanti1  

E-Print Network (OSTI)

Testing for Refinement in CSP Ana Cavalcanti1 and Marie-Claude Gaudel2 1 University of York Abstract. CSP is a well-established formalism for modelling and verifi- cation of concurrent reactive work on algebraic reasoning and model checking. Testing techniques based on CSP models, however, have

Paris-Sud XI, Université de

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221

Department of Computing Stepwise Refinement in Event-B||CSP  

E-Print Network (OSTI)

in Event-B||CSP Part 1: Safety Steve Schneider, Helen Treharne and Heike Wehrheim March 12th 2011 #12;Stepwise Refinement in Event-B CSP Part 1: Safety Steve Schneider1 Helen Treharne1 Heike Wehrheim2 1, 2011 Contents 1 Introduction 3 2 CSP 3 2.1 Notation

Doran, Simon J.

222

GRAIN REFINEMENT OF CAST URANIUM BY HEAT TREATMENT  

SciTech Connect

The thermal cycling, irradiation behavior, and fabrication characteristics of U are strongly dependent upon grain size; a smaller grain size yields the better properties. Grain refinement of cast U may be accomplished either by hot working in the high alpha temperature range or by heat treatment; refinement by the latter method was the object of this investigation. The variables studied were time, temperature, specimen size, multiple quenching, and alphaannealing after quenching. The results of the investigation have led to the following conclusions, within the scope of the experimental conditions. The grain size of cast U may be appreciably refined by beta-quenching. Time and temperature in the beta phase are not significant in determining the final alpha grain size. Multiple beta-quenches (two to four times) produce better grain size refinement than a single quench. Alpha-annealing after beta-quenching causes recrystallization, but does not greatly affect the grain size. Gamma-quenching is not recommended as a practical heat treatment. (auth)

Powell, G.W.; Klein, J.L.; Krashes, D.

1957-07-01T23:59:59.000Z

223

Development via refinement in probabilistic b: foundation and case study  

Science Conference Proceedings (OSTI)

In earlier work, we introduced probability to the B by providing a probabilistic choice substitution and by extending B's semantics to incorporate its meaning [8]. This, a first step, allowed probabilistic programs to be written and ... Keywords: B, generalised substitutions, probability, program correctness, randomised algorithms, refinement, weakest preconditions

Thai Son Hoang; Zhendong Jin; Ken Robinson; Annabelle McIver; Carroll Morgan

2005-04-01T23:59:59.000Z

224

Process for electroslag refining of uranium and uranium alloys  

DOE Patents (OSTI)

A process is described for electroslag refining of uranium and uranium alloys wherein molten uranium and uranium alloys are melted in a molten layer of a fluoride slag containing up to about 8 weight percent calcium metal. The calcium metal reduces oxides in the uranium and uranium alloys to provide them with an oxygen content of less than 100 parts per million. (auth)

Lewis, P.S. Jr.; Agee, W.A.; Bullock, J.S. IV; Condon, J.B.

1975-07-22T23:59:59.000Z

225

Feature-oriented refinement of models, metamodels and model transformations  

Science Conference Proceedings (OSTI)

Done well, the blend of Model Driven Development (MDD) and Software Product Lines (SPL) offers a promising approach, mixing abstraction from MDD and variability from SPL. Although Model Driven Product Lines have flourished recently, the focus so far ... Keywords: AHEAD, XAK, metamodels, model transformations, modeling, models, refinements

Salvador Trujillo; Ander Zubizarreta; Xabier Mendialdua; Josune de Sosa

2009-10-01T23:59:59.000Z

226

Energy Efficiency Improvement in the Petroleum RefiningIndustry  

Science Conference Proceedings (OSTI)

Information has proven to be an important barrier inindustrial energy efficiency improvement. Voluntary government programsaim to assist industry to improve energy efficiency by supplyinginformation on opportunities. ENERGY STAR(R) supports the development ofstrong strategic corporate energy management programs, by providingenergy management information tools and strategies. This paper summarizesENERGY STAR research conducted to develop an Energy Guide for thePetroleum Refining industry. Petroleum refining in the United States isthe largest in the world, providing inputs to virtually every economicsector, including the transport sector and the chemical industry.Refineries spend typically 50 percent of the cash operating costs (e.g.,excluding capital costs and depreciation) on energy, making energy amajor cost factor and also an important opportunity for cost reduction.The petroleum refining industry consumes about 3.1 Quads of primaryenergy, making it the single largest industrial energy user in the UnitedStates. Typically, refineries can economically improve energy efficiencyby 20 percent. The findings suggest that given available resources andtechnology, there are substantial opportunities to reduce energyconsumption cost-effectively in the petroleum refining industry whilemaintaining the quality of the products manufactured.

Worrell, Ernst; Galitsky, Christina

2005-05-01T23:59:59.000Z

227

Refining image annotation using contextual relations between words  

Science Conference Proceedings (OSTI)

In this paper, we present a probabilistic approach to refine image annotations by incorporating semantic relations between annotation words. Our approach firstly predicts a candidate set of annotation words with confidence scores. This is achieved by ... Keywords: image annotation, normalized Google distance, semantic relation

Yong Wang; Shaogang Gong

2007-07-01T23:59:59.000Z

228

Effects of Multiple Reductions on Grain Refinement During Hot ...  

Science Conference Proceedings (OSTI)

of as-cast alloy 718, a research program was initiated at the ... process design criteria for grain size refinement during primary breakdown of alloy. 718 ingot via ..... however, can and does occur during the dwell time after each strain ..... statistically ..... (1981). D. K. Matlock and D. A. Burford,. "An Experimental. Correlation.

229

High precision trace element and organic constituent analysis of oil shale and solvent-refined coal materials  

DOE Green Energy (OSTI)

The application of a number of sensitive and precise methods for the determination of trace elements, heavy element species and organic compounds in materials from an oil shale research retort process and from a solvent-refined coal pilot plant operation are discussed. The methods were chosen both for their sensitivity, and also for their relative freedom from interference effects. Coal liquids contain much higher concentrations of aromatic compounds, including polynuclear aromatic hydrocarbons (PNA's). A larger relative fraction of the pna's in shale oil are alkyl substituted. Coal liquids are also considerably higher in phenols (28 percent) than is shale oil (2 percent). N-heterocyclics are present in higher concentration (greater than 8 percent) in shale oil due to the high nitrogen content of the raw shale. Hydroaromatics are common in coal liquids but negligible in shale oil. Inorganic elements and speciation measurements indicate significant amounts of the toxic heavy elements Hg, As, Zn, and Se in effluent oil water and gas streams. In addition, the process water contains significant Co, Br, Sb, and U. Raw oil shale is highly enriched in Se, As and Sb and somewhat enriched in U, Pb, Cs, Hg and Zn. Solvent-refined coal liquids were found to be relatively low in most trace elements. The majority of trace elements are concentrated by the process into the mineral residue. Only Br and Hg are not depleted in solvent-refined coal. Other trace elements still remaining in significant amounts are U, Ta, Cr, and Zn.

Fruchter, J.S.; Petersen, M.R.; Laul, J.C.; Ryan, P.W.

1976-11-01T23:59:59.000Z

230

Risk Informed Safety Margin Characterization (RISMC) Advanced Test Reactor  

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

(RISMC) Advanced Test (RISMC) Advanced Test Reactor Demonstration Case Study Risk Informed Safety Margin Characterization (RISMC) Advanced Test Reactor Demonstration Case Study Safety is central to the design, licensing, operation, and economics of Nuclear Power Plants (NPPs). Consequently, the ability to better characterize and quantify safety margin holds the key to improved decision making about light water reactor design, operation, and plant life extension. A systematic approach to characterization of safety margins and the subsequent margins management options represents a vital input to the licensee and regulatory analysis and decision making that will be involved. The purpose of the Risk Informed Safety Margin Characterization (RISMC) Pathway research and development (R&D) is to support plant decisions for

231

Risk Informed Safety Margin Characterization Case Study: Selection of  

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

Case Study: Selection Case Study: Selection of Electrical Equipment To Be Subjected to Environmental Qualification Risk Informed Safety Margin Characterization Case Study: Selection of Electrical Equipment To Be Subjected to Environmental Qualification Reference 1 discussed key elements of the process for developing a margins-based "safety case" to support safe and efficient operation for an extended period. The present report documents (in Appendix A) a case study, carrying out key steps of the Reference 1 process, using an actual plant Probabilistic Risk Assessment (PRA) model. In general, the margins-based safety case helps the decision-maker manage plant margins most effectively. It tells the plant decision-maker such things as what margin is present (at the plant level, at the functional

232

Higher powers in gravitation  

SciTech Connect

We consider the Friedmann-Robertson-Walker cosmologies of theories of gravity that generalize the Einstein-Hilbert action by replacing the Ricci scalar R with some function f(R). The general asymptotic behavior of these cosmologies is found, at both early and late times, and the effects of adding higher and lower powers of R to the Einstein-Hilbert action is investigated. The assumption that the highest powers of R should dominate the Universe's early history, and that the lowest powers should dominate its future is found to be inaccurate. The behavior of the general solution is complicated, and while it can be the case that single powers of R dominate the dynamics at late times, it can be either the higher or lower powers that do so. It is also shown that it is often the lowest powers of R that dominate at early times, when approach to a bounce or a Tolman solution are generic possibilities. Various examples are considered, and both vacuum and perfect fluid solutions are investigated.

Clifton, Timothy [Department of Astrophysics, University of Oxford, Oxford, OX1 3RH (United Kingdom)

2008-10-15T23:59:59.000Z

233

Atlantic Basin Refining Dynamics from U.S. Perspective  

Gasoline and Diesel Fuel Update (EIA)

“This presentation focuses on the current refining situation in the Atlantic Basin, “This presentation focuses on the current refining situation in the Atlantic Basin, Page 1 including some discussion on how we got here, and on drivers that will influence the next 5 years. I will focus on three topics today that are critical to the petroleum product dynamics of Page 2 the Atlantic Basin over the next several years. The first is product demand growth - something that has been affected both by the recession and legislation. Next I will cover the supply situation for gasoline and distillates in the Atlantic Basin, since Europe and the U.S. are closely entwined in these markets. Last, we will visit the outlook for those drivers affecting profitability - an area of large uncertainty. I will begin today with a short discussion of important underlying long-term trends in U.S.

234

Post-refinement multiscale method for pin power reconstruction  

SciTech Connect

The ability to accurately predict local pin powers in nuclear reactors is necessary to understand the mechanisms that cause fuel pin failure during steady state and transient operation. In the research presented here, methods are developed to improve the local solution using high order methods with boundary conditions from a low order global solution. Several different core configurations were tested to determine the improvement in the local pin powers compared to the standard techniques based on diffusion theory and pin power reconstruction (PPR). The post-refinement multiscale methods use the global solution to determine boundary conditions for the local solution. The local solution is solved using either a fixed boundary source or an albedo boundary condition; this solution is 'post-refinement' and thus has no impact on the global solution. (authors)

Collins, B.; Seker, V.; Downar, T. [Dept. of Nuclear Engineering and Radiological Sciences, Univ. of Michigan, 2355 Bonisteel Blvd., Ann Arbor, MI 48109 (United States); Xu, Y. [Argonne National Laboratory (United States)

2012-07-01T23:59:59.000Z

235

Changing Trends in the Refining Industry (released in AEO2006)  

Reports and Publications (EIA)

There have been some major changes in the U.S. refining industry recently, prompted in part by a significant decline in the quality of imported crude oil and by increasing restrictions on the quality of finished products. As a result, high-quality crudes, such as the WTI crude that serves as a benchmark for oil futures on the New York Mercantile Exchange (NYMEX), have been trading at record premiums to the OPEC Basket price.

Information Center

2006-02-01T23:59:59.000Z

236

REFINING AND END USE STUDY OF COAL LIQUIDS  

DOE Green Energy (OSTI)

This document summarizes all of the work conducted as part of the Refining and End Use Study of Coal Liquids. There were several distinct objectives set, as the study developed over time: (1) Demonstration of a Refinery Accepting Coal Liquids; (2) Emissions Screening of Indirect Diesel; (3) Biomass Gasification F-T Modeling; and (4) Updated Gas to Liquids (GTL) Baseline Design/Economic Study.

Unknown

2002-01-01T23:59:59.000Z

237

Superior refining performance beyond 2000 -- Breaking traditional paradigms  

SciTech Connect

Over the last 5 years, refining companies have not performed well financially, generating returns below the cost of capital. Environmental regulations have caused the industry to invest significant amounts of capital, and while new regulations will cause the shutdown of between 500 thousand and 1.2 million barrels per day of capacity, the industry structure will remain poor and financial returns for the average player will likely be volatile, cyclical, and below the cost of capital. Based on this industry outlook, refining companies seeking superior performance will have to break the traditional paradigms and adopt world-class practices used in other industries. Changes required to significantly improve financial returns will include shifts in business strategy to accommodate growth, and development of nontraditional services, as well as initiates to dramatically reshape cost structure and improve profitability. Making the changes to become a superior performer in the refining business will require a clear vision and strong leadership at multiple levels in the organization. The transformation will also require changes in company culture and incentive plans that encourage managers to act as owners. In addition, superior performers will push accountability for results to low levels in the organization. Given the herd mentality of the oil industry, superior performers must take decisive, preemptive action to generate a substantial, competitive advantage.

Tassel, B. van [McKinsey and Co., Inc., Houston, TX (United States)

1995-09-01T23:59:59.000Z

238

U. S. refiners move into another challenging technical era  

Science Conference Proceedings (OSTI)

With the transition to unleaded gasoline scarcely behind us, another new era is dawning for the U.S. refiner. No one yet knows the exact configuration of the refinery of the future and no two refineries are likely to adapt in exactly the same way. What is certain, however, is that by the year 2000, refineries will be more technologically advanced, their products will be more environmentally acceptable, and their operators will be more highly trained. The typical U.S. refinery in the year 2000 will be located at an existing refinery site because economic and environmental considerations will make it impossible to build new grassroots capacity. As a result of the Clean Air act, the refinery of tomorrow will produce cleaner fuels The entire U.S. gasoline pool will likely be reformulated. Most of the diesel fuel pool will consist of ultralow-sulfur product. And jet fuel-which is experiencing rapid demand growth-will be an increasingly important product. Many existing refining process will remain in use, but they will be more efficient and more technologically advanced. Energy efficiency will be a primary concern, as refiners seek to combat ever-increasing crude oil costs and refinery operating expenses. The refinery of the future also will be much more environmentally acceptable. The article is a closer look at the refinery of the future.

Hall, J.R. (Ashland Oil Inc., Ashland, KY (US))

1991-10-21T23:59:59.000Z

239

Decontamination of steel by melt refining: A literature review  

SciTech Connect

It has been reported that a large amount of metal waste is produced annually by nuclear fuel processing and nuclear power plants. These metal wastes are contaminated with radioactive elements, such as uranium and plutonium. Current Department of Energy guidelines require retrievable storage of all metallic wastes containing transuranic elements above a certain level. Because of high cost, it is important to develop an effective decontamination and volume reduction method for low level contaminated metals. It has been shown by some investigators that a melt refining technique can be used for the processing of the contaminated metal wastes. In this process, contaminated metal is melted wit a suitable flux. The radioactive elements are oxidized and transferred to a slag phase. In order to develop a commercial process it is important to have information on the thermodynamics and kinetics of the removal. Therefore, a literature search was carried out to evaluate the available information on the decontamination uranium and transuranic-contaminated plain steel, copper and stainless steel by melt a refining technique. Emphasis was given to the thermodynamics and kinetics of the removal. Data published in the literature indicate that it is possible to reduce the concentration of radioactive elements to a very low level by the melt refining method. 20 refs.

Ozturk, B.; Fruehan, R.J. [Carnegie-Mellon Univ., Pittsburgh, PA (United States)

1994-12-31T23:59:59.000Z

240

Science Taking Higher  

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

4, 1997 4, 1997 Number 7 f Science Taking Higher Profile in Capital continued on page 8 INSIDE 2 Computers and Accelerators 4 Inventions 6 Sloan Digital Sky Survey upon the Clinton Administration and the 105th Congress to increase the nation's investment in scientific research and education. This awareness of science issues emanating from the nation's capital has heartened many of those toiling in the country's laboratories and universities; however, researchers interviewed for this article also said they are closely observing how the rhetoric translates into increased funding as the appropriations process plays out. "I see these [initiatives] as demonstrations of the underlying support of basic science in the community and in Congress," said Jeffrey Photo courtesy

Note: This page contains sample records for the topic "higher refining margins" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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241

Assessment of Biomass Resources from Marginal Lands in APEC Countries |  

Open Energy Info (EERE)

from Marginal Lands in APEC Countries from Marginal Lands in APEC Countries Jump to: navigation, search Logo: Assessment of Biomass Resources from Marginal Lands in APEC Countries Name Assessment of Biomass Resources from Marginal Lands in APEC Countries Agency/Company /Organization National Renewable Energy Laboratory Sector Energy Focus Area Biomass Topics Resource assessment Resource Type Dataset, Maps, Publications Website http://www.biofuels.apec.org/p Country Australia, Brunei, Canada, Chile, China, Indonesia, Japan, South Korea, Malaysia, Mexico, New Zealand, Papua New Guinea, Peru, Philippines, Russia, Chinese Taipei, Thailand, United States, Vietnam Australia and New Zealand, South-Eastern Asia, Northern America, South America, Eastern Asia, South-Eastern Asia, Eastern Asia, Eastern Asia, South-Eastern Asia, Central America, Australia and New Zealand, Melanesia, South America, South-Eastern Asia, Eastern Europe, , South-Eastern Asia, Northern America, South-Eastern Asia

242

Marginal Sea Overflows and the Upper Ocean Interaction  

Science Conference Proceedings (OSTI)

Marginal sea overflows and the overlying upper ocean are coupled in the vertical by two distinct mechanisms—by an interfacial mass flux from the upper ocean to the overflow layer that accompanies entrainment and by a divergent eddy flux ...

Shinichiro Kida; Jiayan Yang; James F. Price

2009-02-01T23:59:59.000Z

243

2011 Short CourseNew Technologies in Oilseed Extraction and Edible Oil Refining  

Science Conference Proceedings (OSTI)

New Technologies in Oilseed Extraction and Edible Oil Refining ShortCourse held at the 102nd AOCS Annual Meeting and Expo. 2011 Short CourseNew Technologies in Oilseed Extraction and Edible Oil Refining New Technologies in Oilseed Extraction

244

2010 Short Course New Technologies in Oilseed Extraction and Edible Oil Refining  

Science Conference Proceedings (OSTI)

New Technologies in Oilseed Extraction and Edible Oil Refining Short Course held at the 101st AOCS Annual Meeting and Expo. 2010 Short Course New Technologies in Oilseed Extraction and Edible Oil Refining New Technologies in Oilseed Extraction and

245

Hydrogen and Fuel Cells - Refining the Message Initiating a National Dialogue and Educational Agenda  

E-Print Network (OSTI)

Hydrogen and Fuel Cells – Refining the Message Initiating aApril 1, 2005 Hydrogen and Fuel Cells – Refining the Message2002, "Fuel Choices for Fuel Cell Vehicles: Well-to-Wheels

Eggert, Anthony; Kurani, Kenneth S; Turrentine, Tom; Ogden, Joan M; Sperling, Dan; Winston, Emily

2005-01-01T23:59:59.000Z

246

Electricity Prices in a Competitive Environment: Marginal Cost Pricing  

Reports and Publications (EIA)

Presents the results of an analysis that focuses on two questions: (1) How are prices for competitive generation services likely to differ from regulated prices if competitive prices are based on marginal costs rather than regulated cost-of-service pricing? (2) What impacts will the competitive pricing of generation services (based on marginal costs) have on electricity consumption patterns, production costs, and the financial integrity of electricity suppliers?

Information Center

1997-08-01T23:59:59.000Z

247

Weekly U.S. Refiner and Blender Adjusted Net Production of ...  

U.S. Energy Information Administration (EIA)

Weekly U.S. Refiner and Blender Adjusted Net Production of Finished Motor Gasoline (Thousand Barrels per Day)

248

Weekly U.S. Refiner, Blender, and Gas Plant Net Production of ...  

U.S. Energy Information Administration (EIA)

Weekly U.S. Refiner, Blender, and Gas Plant Net Production of Propane and Propylene (Thousand Barrels per Day)

249

Effects of Feed Quality and Product Specification Changes on Refined Product Supply  

Reports and Publications (EIA)

The presentation explores the implications that future feedstock changes and product specification changes may have on refined product supply.

Information Center

2003-03-01T23:59:59.000Z

250

Long-run marginal costs lower than average costs  

SciTech Connect

The thesis of this article is that the long-run marginal costs of electricity are not always greater than the present average costs, as is often assumed. As long as short-run costs decrease with new plant additions, the long-run marginal cost is less than long-run average cost. When average costs increase with new additions, long-run marginal costs are greater than long-run average costs. The long-run marginal costs of a particular utility may be less than, equal to, or greater than its long-run average costs - even with inflation present. The way to determine which condition holds for a given utility is to estimate costs under various combinations of assumptions: probable load growth, zero load growth, and load growth greater than expected; and changes in load factor with attendant costs. Utilities that can demonstrate long-run marginal costs lower than long-run average costs should be encouraged to build plant and increase load, for the resulting productivity gains and slowing of inflation. Utilities that face long-run marginal costs greater than long-run average costs should discourage growth in sales through any available means.

Hunter, S.R.

1980-01-03T23:59:59.000Z

251

High precision trace element and organic constituent analysis of oil shale and solvent-refined coal materials  

DOE Green Energy (OSTI)

Broad spectrum inorganic and organic analytical techniques provide the best approach for the initial characterization of the complex samples encountered in working with new energy technologies such as oil shale retorting and solvent refining of coal. In complex samples, analyses are facilitated by techniques, such as neutron activation and x-ray fluorescence, that are relatively insensitive to matrix effects. A comparative organic constituent analysis of the crude shale oil and coal liquid samples analyzed in this study showed that the coal liquids contained higher concentrations of aromatic compounds including polynuclear aromatic hydrocarbons. The coal liquids were considerably richer in phenols than was the shale oil. N-heterocyclics were present in higher concentration in shale oil due to the high nitrogen content of the raw shale. Hydroaromatics were found to be common in coal liquids but negligible in this shale oil. Measurable amounts of the heavy elements Hg, As, Zn, and Se were found in effluent streams from oil shale retorting. The process water also contained significant Co, Br, Sb, and U. The raw oil shale was enriched in Se, As and Sb and somewhat enriched in U, Pb, Cs, Hg, and Zn. Solvent-refined coal liquids were found to be relatively low in most trace elements. Most were concentrated in the mineral residue. Only Br was not depleted in solvent-refined coal. Other trace elements remaining in significant amounts were U, Ta, Cr and Zn. We have not yet measured the trace elements and gaseous and particulate samples from the solvent-refined coal plant. 10 tables.

Fruchter, J.S.; Laul, J.C.; Petersen, M.R.; Ryan, P.W.

1977-03-01T23:59:59.000Z

252

Refinement and verification of concurrent systems specified in ObjectZ and CSP  

E-Print Network (OSTI)

Refinement and verification of concurrent systems specified in Object­Z and CSP Graeme Smith­Z and CSP. A common semantic basis for the two languages enables a unified method of refinement to be used, based upon CSP refinement. To enable state­based techniques to be used for the Object­Z components

Smith, Graeme

253

A performance study of data layout techniques for improving data locality in refinement-based pathfinding  

Science Conference Proceedings (OSTI)

The widening gap between processor speed and memory latency increases the importance of crafting data structures and algorithms to exploit temporal and spatial locality. Refinement-based pathfinding algorithms, such as Classic Refinement (CR), find quality ... Keywords: Cache-conscious algorithms, classical refinement, pathfinding

Robert Niewiadomski; José Nelson Amaral; Robert C. Holte

2004-12-01T23:59:59.000Z

254

Retrenching the Purse: The Balance Enquiry Quandary, and Generalised and (1,1) Forward Refinements  

Science Conference Proceedings (OSTI)

Some of the success stories of model based refinement are recalled, as well as some of the annoyances that arise when refinement is deployed in the engineering of large systems. The way that retrenchment attempts to alleviate such inconveniences is briefly ... Keywords: Atomicity, Mondex Purse, Refinement, Retrenchment, Verification

Richard Banach; Czeslaw Jeske; Michael Poppleton; Susan Stepney

2007-01-01T23:59:59.000Z

255

Retrenching the Purse: The Balance Enquiry Quandary, and Generalised and (1,1) Forward Refinements  

Science Conference Proceedings (OSTI)

Some of the success stories of model based refinement are recalled, as well as some of the annoyances that arise when refinement is deployed in the engineering of large systems. The way that retrenchment attempts to alleviate such inconveniences is briefly ... Keywords: Atomicity, Mondex Purse, Refinement, Retrenchment, Verification

Richard Banach; Czeslaw Jeske; Michael Poppleton; Susan Stepney

2007-05-01T23:59:59.000Z

256

Marginal Abatement Costs and Marginal Welfare Costs for Greenhouse Gas Emissions Reductions: Results from the EPPA Model  

E-Print Network (OSTI)

Marginal abatement cost (MAC) curves, relationships between tons of emissions abated and the CO2 (or GHG) price, have been widely used as pedagogic devices to illustrate simple economic concepts such as the benefits of ...

Morris, Jennifer

257

Do Americans Consume Too Little Natural Gas? An Empirical Test of Marginal Cost Pricing  

E-Print Network (OSTI)

implemented at relatively low cost. References [1] Averch,Departures from Marginal Cost Pricing,” American EconomicCoase, R.H. , “The Marginal Cost Controversy. ” Economica,

Davis, Lucas; Muehlegger, Erich

2009-01-01T23:59:59.000Z

258

Cogeneration handbook for the petroleum refining industry. [Contains glossary  

SciTech Connect

The decision of whether to cogenerate involves several considerations, including technical, economic, environmental, legal, and regulatory issues. Each of these issues is addressed separately in this handbook. In addition, a chapter is included on preparing a three-phase work statement, which is needed to guide the design of a cogeneration system. In addition, an annotated bibliography and a glossary of terminology are provided. Appendix A provides an energy-use profile of the petroleum refining industry. Appendices B through O provide specific information that will be called out in subsequent chapters.

Fassbender, L.L.; Garrett-Price, B.A.; Moore, N.L.; Fassbender, A.G.; Eakin, D.E.; Gorges, H.A.

1984-03-01T23:59:59.000Z

259

Block-structured adaptive mesh refinement - theory, implementation and application  

SciTech Connect

Structured adaptive mesh refinement (SAMR) techniques can enable cutting-edge simulations of problems governed by conservation laws. Focusing on the strictly hyperbolic case, these notes explain all algorithmic and mathematical details of a technically relevant implementation tailored for distributed memory computers. An overview of the background of commonly used finite volume discretizations for gas dynamics is included and typical benchmarks to quantify accuracy and performance of the dynamically adaptive code are discussed. Large-scale simulations of shock-induced realistic combustion in non-Cartesian geometry and shock-driven fluid-structure interaction with fully coupled dynamic boundary motion demonstrate the applicability of the discussed techniques for complex scenarios.

Deiterding, Ralf [ORNL

2011-01-01T23:59:59.000Z

260

Minimally refined biomass fuel. [carbohydrate-water-alcohol mixture  

DOE Patents (OSTI)

A minimally refined fluid composition, suitable as a fuel mixture and derived from biomass material, is comprised of one or more water-soluble carbohydrates such as sucrose, one or more alcohols having less than four carbons, and water. The carbohydrate provides the fuel source; water-solubilizes the carbohydrate; and the alcohol aids in the combustion of the carbohydrate and reduces the viscosity of the carbohydrate/water solution. Because less energy is required to obtain the carbohydrate from the raw biomass than alcohol, an overall energy savings is realized compared to fuels employing alcohol as the primary fuel.

Pearson, R.K.; Hirschfeld, T.B.

1981-03-26T23:59:59.000Z

Note: This page contains sample records for the topic "higher refining margins" 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

Bethe roots and refined enumeration of alternating-sign matrices  

E-Print Network (OSTI)

The properties of the most probable ground state candidate for the XXZ spin chain with the anisotropy parameter equal to -1/2 and an odd number of sites is considered. Some linear combinations of the components of the considered state, divided by the maximal component, coincide with the elementary symmetric polynomials in the corresponding Bethe roots. It is proved that those polynomials are equal to the numbers providing the refined enumeration of the alternating-sign matrices of order M+1 divided by the total number of the alternating-sign matrices of order M, for the chain of length 2M+1.

A. V. Razumov; Yu. G. Stroganov

2006-05-01T23:59:59.000Z

262

Tectonic evolution of the southwestern Black Sea margin, offshore Turkey  

E-Print Network (OSTI)

The southwestern margin of the Black Sea was under the influence of a regional extensional tectonic regime behind an island arc during Late Cretaceous time. During this period, andesitic submarine volcanics covered the margin which was connected to the Srednogorie intra-arc zone in Bulgaria. Following back-arc extension, the whole margin was affected by a compressional tectonic regime during Paleocene-early Eocene time. Under this regime, a series of thrust faults formed, which were connected to the Stara Planina and the Fore-Balkan overthrust system, offshore Bulgaria. In the middle Eocene, the regional compressional regime gave way to an extensional phase which caused block faulting in the basement and triggered rapid subsidence on the outer shelf along these block faults. As a result, a transgressive period began across the region. In the south of the study area, a small basin formed and became isolated from the outer shelf behind a marginal rise which is bordered by several margin faults from the south and the north. The middle Eocene transgression reached its maximum during early Oligocene by covering the most of the land areas in the south. A regression in Late Oligocene deposited shallow marine sediments on the margin. During early to middle Mocene time, a delta system was formed by sediments that by-passed through a narrow corridor in the marginal rise and that were derived from the Srednogorie Zone. During early stages in the development of the North Anatolian Fault system and its probable northern strand in the Thrace Basin at the end of the middle Miocene, the southern and southeastern parts of the margin were left subaerially exposed. Late Miocene deposition was characterized by a long erosional period along the margin. Fluvial and shallow marine deposits of Pliocene age were deposited over the eroded Miocene unit during a sea-level rise. A sea-level fall in late Pliocene time formed a deep incised valley system on the shelf. A transgressive period during Quaternary time filled this valley system, and formed the present day Turkish Black Sea coast.

Can, Emrah

1996-01-01T23:59:59.000Z

263

Process Refinements - Reporting of Public Use of Diesel Fuel  

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

Based on FHWA's reassessment of the reporting and attribution process and on the GAO study, several specific issues were identified. These issues were published in a Federal Register notice for public response.3 Sixteen States provided comments on the issues provided in the Federal Register. Two additional issues were also raised by commenters. The comments may be found at http://dmses.dot.gov; search for docket number FHWA-2000-7635. All of the issues are discussed below. Certain process refinements are required to address these issues; these changes are explained in the following sections. Based on FHWA's reassessment of the reporting and attribution process and on the GAO study, several specific issues were identified. These issues were published in a Federal Register notice for public response.3 Sixteen States provided comments on the issues provided in the Federal Register. Two additional issues were also raised by commenters. The comments may be found at http://dmses.dot.gov; search for docket number FHWA-2000-7635. All of the issues are discussed below. Certain process refinements are required to address these issues; these changes are explained in the following sections. Some of the issues concern the data reported by the States. Because of differences in State laws, States collect different types of data. Chapter 2 of A Guide to Reporting Highway Statistics4 provides instructions for completing Forms FHWA-551M and FHWA-556.

264

Metal decontamination for waste minimization using liquid metal refining technology  

Science Conference Proceedings (OSTI)

The current Department of Energy Mixed Waste Treatment Project flowsheet indicates that no conventional technology, other than surface decontamination, exists for metal processing. Current Department of Energy guidelines require retrievable storage of all metallic wastes containing transuranic elements above a certain concentration. This project is in support of the National Mixed Low Level Waste Treatment Program. Because of the high cost of disposal, it is important to develop an effective decontamination and volume reduction method for low-level contaminated metals. It is important to be able to decontaminate complex shapes where surfaces are hidden or inaccessible to surface decontamination processes and destruction of organic contamination. These goals can be achieved by adapting commercial metal refining processes to handle radioactive and organic contaminated metal. The radioactive components are concentrated in the slag, which is subsequently vitrified; hazardous organics are destroyed by the intense heat of the bath. The metal, after having been melted and purified, could be recycled for use within the DOE complex. In this project, we evaluated current state-of-the-art technologies for metal refining, with special reference to the removal of radioactive contaminants and the destruction of hazardous organics. This evaluation was based on literature reports, industrial experience, plant visits, thermodynamic calculations, and engineering aspects of the various processes. The key issues addressed included radioactive partitioning between the metal and slag phases, minimization of secondary wastes, operability of the process subject to widely varying feed chemistry, and the ability to seal the candidate process to prevent the release of hazardous species.

Joyce, E.L. Jr.; Lally, B. [Los Alamos National Lab., NM (United States); Ozturk, B.; Fruehan, R.J. [Carnegie-Mellon Univ., Pittsburgh, PA (United States). Dept. of Materials Science and Engineering

1993-09-01T23:59:59.000Z

265

Learning from marginalized users: reciprocity in HCI4D  

Science Conference Proceedings (OSTI)

Users in the developing world continue to appropriate information and communication technologies (ICTs) in pioneering ways resulting in innovations such as M-Pesa, the popular mobile money transfer system developed in Kenya. M-Pesa's success demonstrates ... Keywords: design and innovation, hci4d, marginalized users

Susan P. Wyche; Elisa Oreglia; Morgan G. Ames; Christopher Hoadley; Aditya Johri; Phoebe Sengers; Charles Steinfield

2012-02-01T23:59:59.000Z

266

Sustainable bioenergy production from marginal lands in the US Midwest  

SciTech Connect

Long-term measurements of global warming impact coupled with spatially explicit modeling suggests that both climate benefits and the production potential of cellulosic crops grown on marginal lands of the US North Central region are substantial but will be insufficient to meet long-term biofuel needs.

Gelfand, Ilya; Sahajpal, Ritvik; Zhang, Xuesong; Izaurralde, Roberto C.; Gross, Katherine L.; Robertson, G. P.

2013-01-24T23:59:59.000Z

267

Building a "Margin of Safety" Into Renewable Energy  

E-Print Network (OSTI)

Building a "Margin of Safety" Into Renewable Energy Procurements: A Review of Experience January 2006 CEC-300-2006-004 #12;ABSTRACT In implementing state renewables portfolio standards, utility purchasers and electricity regulators must confront the reality that signed renewable energy contracts

268

Generation of Topographic Waves over the Continental Margin  

Science Conference Proceedings (OSTI)

Numerical experiments were carried out to simulate the generation of topographic waves by a Gulf Stream ring over the continental margin in a stratified ocean on an f-plane. The study was aimed at understanding the combined effect of density ...

Ping-Tung Shaw; S. Divakar

1991-07-01T23:59:59.000Z

269

Introduction to the Marginal Value Approach for Fossil Asset Management  

Science Conference Proceedings (OSTI)

As power markets become competitive, utilities will benefit from closely monitoring their fossil-fleet investment and deployment decisions. Adopting a marginal value approach for analyzing fossil asset management (FAM) decisions gives utilities a framework for systematically quantifying the corporate-level value of utility decisions.

1995-04-12T23:59:59.000Z

270

Modelling Heterogeneous Dispersion in Marginal Models for Longitudinal Proportional Data  

E-Print Network (OSTI)

the fitted curves for the pattern of dispersion profile over time across three different gas concentrationModelling Heterogeneous Dispersion in Marginal Models for Longitudinal Proportional Data Peter X proportional data assumes a constant dispersion para- meter. This assumption of dispersion homogeneity

Song, Peter X.

271

Wave-Induced Drift Force in the Marginal Ice Zone  

Science Conference Proceedings (OSTI)

Wind waves are commonly ignored when modeling the ice motion in the marginal ice zone. In order to estimate the importance of the wave forcing, an expression for the second-order wave-induced drift force on a floe exposed to a full directional ...

Diane Masson

1991-01-01T23:59:59.000Z

272

Feature Extraction Based on Maximum Nearest Subspace Margin Criterion  

Science Conference Proceedings (OSTI)

Based on the classification rule of sparse representation-based classification (SRC) and linear regression classification (LRC), we propose the maximum nearest subspace margin criterion for feature extraction. The proposed method can be seen as a preprocessing ... Keywords: Dimensionality reduction, Face recognition, Feature extraction, Finger knuckle print recognition, Linear regression classification

Yi Chen; Zhenzhen Li; Zhong Jin

2013-06-01T23:59:59.000Z

273

Higher Education Tuition Assistance And  

E-Print Network (OSTI)

of Tables 1. Summary Statistics for W.Va. Public Higher Education Graduates Receiving PROMISE and HEGP .................................................................................................1 Summary Data For PROMISE Scholarship And West Virginia Higher Education Grant Recipients................................................................................................................13 Appendix I: Detailed Description Of Employment Data .........................................14

Mohaghegh, Shahab

274

Environmental Regulations and Changes in Petroleum Refining Operations  

Gasoline and Diesel Fuel Update (EIA)

Environmental Regulations and Environmental Regulations and Changes in Petroleum Refining Operations By Tancred C.M. Lidderdale Contents * Introduction * Motor Gasoline Summer Volatility (RVP) Regulations o Table 1. Summer Volatility Regulations for Motor Gasoline o Table 2. Refinery Inputs and Production of Normal Butane o Figure 1. Refinery Inputs and Production of Normal Butane o Table 3. Price Relationship Between Normal Butane and Motor Gasoline o Table 4. Market Price Premium for Low Vapor Pressure (RVP) Gasoline * Oxygenate Content of Motor Gasoline o Figure 2. Oxygenate Content of Motor Gasoline o Table 5. Oxygenated and Conventional Motor Gasoline Price Relationship o Table 6. Reformulated and Conventional Motor Gasoline Price Relationship o Figure 3. Price Differences Between RFG or MTBE and Conventional Gasoline

275

Abelianization of BPS Quivers and the Refined Higgs Index  

E-Print Network (OSTI)

We count Higgs "phase" BPS states of general non-Abelian quiver, possibly with loops, by mapping the problem to its Abelian, or toric, counterpart and imposing Weyl invariance later. Precise Higgs index computation is particularly important for quivers with superpotentials; the Coulomb "phase" index is recently shown to miss important BPS states, dubbed intrinsic Higgs states or quiver invariants. We demonstrate how the refined Higgs index is naturally decomposed to a sum over partitions of the charge. We conjecture, and show in simple cases, that this decomposition expresses the Higgs index as a sum over a set of partition-induced Abelian quivers of the same total charge but generically of smaller rank. Unlike the previous approach inspired by a similar decomposition of the Coulomb index, our formulae compute the quiver invariants directly, and thus offer a self-complete routine for counting BPS states.

Seung-Joo Lee; Zhao-Long Wang; Piljin Yi

2013-10-04T23:59:59.000Z

276

Fuel and oxygen addition for metal smelting or refining process  

DOE Patents (OSTI)

A furnace for smelting iron ore and/or refining molten iron is equipped with an overhead pneumatic lance, through which a center stream of particulate coal is ejected at high velocity into a slag layer. An annular stream of nitrogen or argon enshrouds the coal stream. Oxygen is simultaneously ejected in an annular stream encircling the inert gas stream. The interposition of the inert gas stream between the coal and oxygen streams prevents the volatile matter in the coal from combusting before it reaches the slag layer. Heat of combustion is thus more efficiently delivered to the slag, where it is needed to sustain the desired reactions occurring there. A second stream of lower velocity oxygen can be delivered through an outermost annulus to react with carbon monoxide gas rising from slag layer, thereby adding still more heat to the furnace. 7 figs.

Schlichting, M.R.

1994-11-22T23:59:59.000Z

277

The uses of the refined matrix model recursion  

Science Conference Proceedings (OSTI)

We study matrix models in the {beta}-ensemble by building on the refined recursion relation proposed by Chekhov and Eynard. We present explicit results for the first {beta}-deformed corrections in the one-cut and the two-cut cases, as well as two applications to supersymmetric gauge theories: the calculation of superpotentials in N=1 gauge theories, and the calculation of vevs of surface operators in superconformal N=2 theories and their Liouville duals. Finally, we study the {beta}-deformation of the Chern-Simons matrix model. Our results indicate that this model does not provide an appropriate description of the {Omega}-deformed topological string on the resolved conifold, and therefore that the {beta}-deformation might provide a different generalization of topological string theory in toric Calabi-Yau backgrounds.

Brini, Andrea; Marino, Marcos; Stevan, Sebastien [Departement de Physique Theorique et Section de Mathematiques, Universite de Geneve, Geneve CH-1211 (Switzerland)

2011-05-15T23:59:59.000Z

278

Marginal Recurrence Requiring Salvage Radiotherapy After Stereotactic Body Radiotherapy for Spinal Metastases  

Science Conference Proceedings (OSTI)

Introduction: We sought to quantify and identify risk factors associated with margin recurrence (MR) requiring salvage radiotherapy after stereotactic body radiation therapy (SBRT) for spinal metastases. Methods: We retrospectively reviewed patients with spinal metastases who were treated with single-fraction SBRT between 2006 and 2009. Gross tumor was contoured, along with either the entire associated vertebral body(ies) or the posterior elements, and included in the planning target volume. No additional margins were used. MR was defined as recurrent tumor within one vertebral level above or below the treated lesion that required salvage radiotherapy. Only patients who presented for 3-month post-SBRT follow-up were included in the analysis. Fine and Gray competing risk regression models were generated to identify variables associated with higher risks of MR. MR was plotted using cumulative incidence analysis. Results: SBRT was delivered to 208 lesions in 149 patients. Median follow-up was 8.6 months, and median survival was 12.8 months. The median prescribed dose was 14 Gy (10-16 Gy). MR occurred in 26 (12.5%) treated lesions, at a median time of 7.7 months after SBRT. Patients with paraspinal disease at the time of SBRT (20.8% vs. 7.6% of patients; p = 0.02), and those treated with <16 Gy (16.3% vs. 6.3% of patients, p = 0.14) had higher rates of MR. Both variables were associated with significantly higher risk of MR on multivariate analysis. Conclusion: SBRT for spinal metastases results in a low overall rate of MR. The presence of paraspinal disease at the time of SBRT and a dose of <16 Gy were associated with higher risks of MR.

Koyfman, Shlomo A.; Djemil, Toufik [Department of Radiation Oncology, Cleveland Clinic, Cleveland, Ohio (United States); Burdick, Michael J. [Department of Radiation Oncology, Tulane Medical Center, New Orleans, Louisiana (United States); Woody, Neil; Balagamwala, Ehsan H.; Reddy, Chandana A. [Department of Radiation Oncology, Cleveland Clinic, Cleveland, Ohio (United States); Angelov, Lilyana [Department of Neurosurgery, Cleveland Clinic, Cleveland, Ohio (United States); Suh, John H. [Department of Radiation Oncology, Cleveland Clinic, Cleveland, Ohio (United States); Chao, Samuel T., E-mail: chaos@ccf.org [Department of Radiation Oncology, Cleveland Clinic, Cleveland, Ohio (United States)

2012-05-01T23:59:59.000Z

279

Table 6. U.S. Refiner Motor Gasoline Prices by Grade and Sales ...  

U.S. Energy Information Administration (EIA)

17 U.S. Energy Information Administration/Petroleum Marketing Monthly February 2012 Table 6. U.S. Refiner Motor Gasoline Prices by Grade and Sales Type

280

Real-time Imaging of the Grain Refinement Process of Aluminum ...  

Science Conference Proceedings (OSTI)

K2: Microstructural Development of Plutonium Alloys via Cooling Curve Analysis · K3: Preparation of High Purity Tellurium by Zone Refining Process.

Note: This page contains sample records for the topic "higher refining margins" 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

Engine spray combustion modeling using unified spray model with dynamic mesh refinement.  

E-Print Network (OSTI)

??The primary objective of this study is to improve the spray and combustion modeling of internal combustion engines using dynamic mesh refinement. The first part… (more)

Kolakaluri, Ravi

2009-01-01T23:59:59.000Z

282

Table 3a. Imported Refiner Acquisition Cost of Crude Oil, Projected...  

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

a. Imported Refiner Acquisition Cost of Crude Oil, Projected vs. Actual" "Projected Price in Constant Dollars" " (constant dollars per barrel in ""dollar year"" specific to each...

283

Table 6. U.S. Refiner Motor Gasoline Prices by Grade and ...  

U.S. Energy Information Administration (EIA)

17 U.S. Energy Information Administration/Petroleum Marketing Monthly December 2013 Table 6. U.S. Refiner Motor Gasoline Prices by Grade and Sales ...

284

Energy efficiency in the South Africa crude oil refining industry drivers, barriers and opportunities.  

E-Print Network (OSTI)

??Includes abstract. This study has explored a range of barriers, drivers and opportunities to improving energy performance in the South African crude oil refining industry,… (more)

Bergh, Caitlin.

2012-01-01T23:59:59.000Z

285

Regional differences for cost of crude oil to refiners widened in ...  

U.S. Energy Information Administration (EIA)

Glossary For Teachers. Energy Explained. ... Source: U.S. Energy Information Administration, Petroleum Marketing Monthly, Refiner Acquisition Cost of Crude Oil.

286

Table A2. Refiner/Reseller Prices of Aviation Fuels, Propane...  

Annual Energy Outlook 2012 (EIA)

Marketing Annual 1995 467 Table A2. RefinerReseller Prices of Aviation Fuels, Propane, and Kerosene, by PAD District, 1983-Present (Cents per Gallon Excluding Taxes) -...

287

Table A2. Refiner/Reseller Prices of Aviation Fuels, Propane...  

Gasoline and Diesel Fuel Update (EIA)

Marketing Annual 1999 421 Table A2. RefinerReseller Prices of Aviation Fuels, Propane, and Kerosene, by PAD District, 1983-Present (Cents per Gallon Excluding Taxes) -...

288

Table 47. Refiner Residual Fuel Oil and No. 4 Fuel Volumes by...  

Gasoline and Diesel Fuel Update (EIA)

Information Administration Petroleum Marketing Annual 1996 Table 47. Refiner Residual Fuel Oil and No. 4 Fuel Volumes by PAD District (Thousand Gallons per Day) - Continued...

289

Table 47. Refiner Residual Fuel Oil and No. 4 Fuel Volumes by...  

Gasoline and Diesel Fuel Update (EIA)

Information AdministrationPetroleum Marketing Annual 1999 Table 47. Refiner Residual Fuel Oil and No. 4 Fuel Volumes by PAD District (Thousand Gallons per Day) - Continued...

290

HIGHER EDUCATION AND DEVELOPMENT The Evolving Role of Higher Education  

E-Print Network (OSTI)

Higher, especially university level, education has a distinctly important role in the education system and in the knowledge acquisition system in general. However, the deteriorating state of higher education in Arab countries, particularly in quality, has become one of the hallmarks of underdevelopment by contemporary criteria. If such deterioration were to continue, it is feared that higher education would become a mechanism for perpetuating the backwardness of Arab countries in the 21 st century.

Nader Fergany

2000-01-01T23:59:59.000Z

291

Breast Conservation Therapy: The Influence of Molecular Subtype and Margins  

SciTech Connect

Purpose: To evaluate treatment results and prognostic factors, especially margin status and molecular subtype, in early-stage breast cancer patients treated with breast conservation therapy (BCT). Methods and Materials: The records of 1,058 Stage I or II breast cancer patients treated with BCT (surgical excision plus radiotherapy) at Duke University Medical Center, Durham, North Carolina, from 1985-2005 were retrospectively reviewed. Conventional receptor analyses were used as surrogate markers for molecular subtype classification (luminal A, luminal B, Her2 positive, and basal like). Actuarial estimates of overall survival (OS), cause-specific survival (CSS), failure-free survival, and locoregional control (LRC) were computed by use of Kaplan-Meier plots. We analyzed prognostic variables for significance using Cox proportional hazards univariate and multivariate analysis. The study was approved by the Duke University Medical Center Institutional Review Board. Results: The median age of the patients was 56 years (range, 18-89 years). Of the patients, 80% had T1 disease and 66% N0 disease pathologically. With a median follow-up of 9.8 years, an in-breast recurrence developed in 53 patients and 10 patients had nodal failure. For all patients, the 10-year CSS rate was 94%; LRC rate, 94%; and failure-free survival rate, 88%. Luminal A patients had a CSS rate of 95% and LRC rate of 99%. Basal-type patients appeared to do worse, with regard to both CSS rate (74%) and LRC rate (76%), but the numbers were small and the difference was not statistically significant. LRC rates of patients with negative margins (widely negative, close, and extent of margin not known) were virtually identical (93%, 96%, and 94%, respectively). Those with positive margins appeared to fare slightly worse based on LRC rate (88%), but again, the numbers were small and the difference was not statistically significant. Conclusions: BCT remains the treatment of choice for early-stage breast cancer patients irrespective of molecular subtype. Negative margins of excision are desirable, but the width of the negative margin does not influence outcome.

Demirci, Senem, E-mail: senem.demirci@ege.edu.tr [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States); Department of Radiation Oncology, Ege University Faculty of Medicine, Izmir (Turkey); Broadwater, Gloria [Department of Biostatistics and Bioinformatics, Duke Cancer Institute, Durham, NC (United States); Cancer and Leukemia Group B Statistical Center, Duke Cancer Institute, Durham, NC (United States); Marks, Lawrence B. [Department of Radiation Oncology, University of North Carolina School of Medicine, Chapel Hill, NC (United States); Clough, Robert; Prosnitz, Leonard R. [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States)

2012-07-01T23:59:59.000Z

292

Comparative Omics-Driven Genome Annotation Refinement: Application across Yersiniae  

SciTech Connect

Genome sequencing continues to be a rapidly evolving technology, yet most downstream aspects of genome annotation pipelines remain relatively stable or are even being abandoned. To date, the perceived value of manual curation for genome annotations is not offset by the real cost and time associated with the process. In order to balance the large number of sequences generated, the annotation process is now performed almost exclusively in an automated fashion for most genome sequencing projects. One possible way to reduce errors inherent to automated computational annotations is to apply data from 'omics' measurements (i.e. transcriptional and proteomic) to the un-annotated genome with a proteogenomic-based approach. This approach does require additional experimental and bioinformatics methods to include omics technologies; however, the approach is readily automatable and can benefit from rapid developments occurring in those research domains as well. The annotation process can be improved by experimental validation of transcription and translation and aid in the discovery of annotation errors. Here the concept of annotation refinement has been extended to include a comparative assessment of genomes across closely related species, as is becoming common in sequencing efforts. Transcriptomic and proteomic data derived from three highly similar pathogenic Yersiniae (Y. pestis CO92, Y. pestis pestoides F, and Y. pseudotuberculosis PB1/+) was used to demonstrate a comprehensive comparative omic-based annotation methodology. Peptide and oligo measurements experimentally validated the expression of nearly 40% of each strain's predicted proteome and revealed the identification of 28 novel and 68 previously incorrect protein-coding sequences (e.g., observed frameshifts, extended start sites, and translated pseudogenes) within the three current Yersinia genome annotations. Gene loss is presumed to play a major role in Y. pestis acquiring its niche as a virulent pathogen, thus the discovery of many translated pseudogenes underscores a need for functional analyses to investigate hypotheses related to divergence. Refinements included the discovery of a seemingly essential ribosomal protein, several virulence-associated factors, and a transcriptional regulator, among other proteins, most of which are annotated as hypothetical, that were missed during annotation.

Rutledge, Alexandra C.; Jones, Marcus B.; Chauhan, Sadhana; Purvine, Samuel O.; Sanford, James; Monroe, Matthew E.; Brewer, Heather M.; Payne, Samuel H.; Ansong, Charles; Frank, Bryan C.; Smith, Richard D.; Peterson, Scott; Motin, Vladimir L.; Adkins, Joshua N.

2012-03-27T23:59:59.000Z

293

Victorian Queer: Marginality and Money in Nineteenth-Century Literature  

E-Print Network (OSTI)

This dissertation examines how Victorians used the word “queer” as associated with senses of “counterfeit” and “eccentricity” in selected Victorian novels. The word was popularly used, by Victorian writers of both genders and in various and diverse circumstances, to mean the unfamiliar, the unconventional, the incomprehensible, and the non-normal. Unlike the contemporary uses of the word, which are oriented toward a relatively particular meaning, the non-normal sexual, Victorian uses of the word had been fluid, unstable, and indeterminate, yet referring to or associating with the non-normal aspects in things and people. Knowing how the Victorians used the word helps us to understand that a concept of marginality can be extended to the extent of tolerating Otherness in marginalized positions and minority identities. Victorian novels including Mary Elizabeth Braddon’s Aurora Floyd (1863), Wilkie Collins’s Hide and Seek (1854), and Charlotte Brontë’s Jane Eyre (1847) demonstrate how the word “queer” is indeterminately used and also represent how queer marginality is appreciated or rejected, and tolerated or discriminated against. As queerness is defined as the status of counterfeitabilty, a counterpart of authenticity, queer subjects are described to provoke a feeling of repulsion and tend to be criminalized or pathologized. On the other hand, as queerness is defined as the status of eccentricity, queer subjects are sympathized and defended in the narrative. Manifestations of eccentricities in queer subjects are occasionally reprimanded, but admired for queer subjects’ uncommon or distinguished individuality. Victorian novels demonstrate that queer marginality can be employed as a self-fashioning identity or social status for any non-normal individual to deal with social pressure of conformity.

Choi, Jung Sun

2013-05-01T23:59:59.000Z

294

Bayesian learning for a class of priors with prescribed marginals  

Science Conference Proceedings (OSTI)

We discuss three learning rules for generalized Bayesian updating of an imprecise probability: (a modified version of) the generalized Bayes' rule, the maximum likelihood update rule (after Gilboa and Schmeidler) and a newly developed hybrid rule. We ... Keywords: Generalized Bayes rule, 62A01, 62F15, 62F35, 68T37, 86A04, Bayesian updating, Imprecise probability, Maximum likelihood update, Modeling expert opinions, Prescribed marginals, Probability of ruin, Robust Bayesian approach, Unknown correlation structure

Hermann Held; Thomas Augustin; Elmar Kriegler

2008-09-01T23:59:59.000Z

295

Optimization of Electric Energy Consumption in Marginal California Oilfields  

Science Conference Proceedings (OSTI)

This report documents a pilot study of electricity consumption in California oilfields that found significant potential for reducing costs through energy efficiency improvements. It offers suggestions for reducing electricity consumption that, if implemented, could result in a system-wide demand reduction and reduce the need for additional generation and power infrastructure capacity. Moreover, reducing oilfield energy costs would reduce the overall cost of oil production, helping marginal wells remain a...

2003-01-17T23:59:59.000Z

296

Quantification Of Margins And Uncertainties: A Bayesian Approach (full Paper)  

SciTech Connect

Quantification of Margins and Uncertainties (QMU) is 'a formalism for dealing with the reliability of complex technical systems, and the confidence which can be placed in estimates of that reliability.' (Eardleyet al, 2005). In this paper, we show how QMU may be interpreted in the framework of Bayesian statistical inference, using a probabilistic network. The Bayesian approach clarifies the probabilistic underpinnings of the formalism, and shows how the formalism can be used for deciSion-making.

Wallstrom, Timothy C [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

297

Weighted order statistic classifiers with large rank-order margin.  

Science Conference Proceedings (OSTI)

We describe how Stack Filters and Weighted Order Statistic function classes can be used for classification problems. This leads to a new design criteria for linear classifiers when inputs are binary-valued and weights are positive . We present a rank-based measure of margin that can be directly optimized as a standard linear program and investigate its effect on generalization error with experiment. Our approach can robustly combine large numbers of base hypothesis and easily implement known priors through regularization.

Porter, R. B. (Reid B.); Hush, D. R. (Donald R.); Theiler, J. P. (James P.); Gokhale, M. (Maya)

2003-01-01T23:59:59.000Z

298

FDR3 --A Modern Refinement Checker for CSP Thomas Gibson-Robinson, Philip Armstrong,  

E-Print Network (OSTI)

FDR3 -- A Modern Refinement Checker for CSP Thomas Gibson-Robinson, Philip Armstrong, Alexandre.roscoe}@cs.ox.ac.uk Abstract. FDR3 is a complete rewrite of the CSP refinement checker FDR2, incorporating a significant number describe the new algorithm that FDR3 uses to construct its in- ternal representation of CSP processes

Oxford, University of

299

To appear in EPTCS. A CSP account of Event-B refinement  

E-Print Network (OSTI)

To appear in EPTCS. A CSP account of Event-B refinement Steve Schneider Department of Computing a CSP account of Event-B refinement, with a treatment for the first time of splitting events and of anticipated events. To this end, we define a CSP seman- tics for Event-B and show how the different forms

Doran, Simon J.

300

Aspects of Western Refining, Inc.'s Proposed Acquisition of Giant Industries, Inc.  

Reports and Publications (EIA)

Presentation of company-level, non-proprietary data and relevant aggregate data for U.S. refinery capacity and gasoline marketing of Western Refining and Giant Industries to inform discussions of Western Refining Inc.'s proposed acquisition of Giant Industries Inc. for a total of $1.5 billion, which was announced August 28, 2006.

Neal Davis

2006-09-12T23:59:59.000Z

Note: This page contains sample records for the topic "higher refining margins" 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

A refinement-based compositional reasoning framework for pipelined machine verification  

Science Conference Proceedings (OSTI)

We present a refinement-based compositional framework for showing that pipelined machines satisfy the same safety and liveness properties as their non-pipelined specifications. Our framework consists of a set of convenient, easily applicable, and complete ... Keywords: compositional reasoning, pipelined machine verification, refinement

Panagiotis Manolios; Sudarshan K. Srinivasan

2008-04-01T23:59:59.000Z

302

Performance characteristics of an adaptive mesh refinement calculation on scalar and vector platforms  

Science Conference Proceedings (OSTI)

Adaptive mesh refinement (AMR) is a powerful technique that reduces the resources necessary to solve otherwise intractable problems in computational science. The AMR strategy solves the problem on a relatively coarse grid, and dynamically refines it ... Keywords: IBM power3 and power4, SGI, altix, cray X1E, high end computing, hyperCLaw framework, integrated performance monitoring

Michael Welcome; Charles Rendleman; Leonid Oliker; Rupak Biswas

2006-05-01T23:59:59.000Z

303

Public, agencies key players in L. A. refiner's program  

Science Conference Proceedings (OSTI)

In the middle of the world's largest gasoline market, and what is considered the most hostile environment toward refiners, Mobil Oil Corp. runs a lean, efficient, 130,000 b/d refinery. The refinery processes 13--14[degree] API San Joaquin crude oil, converting roughly 85% to gasoline, jet fuel, and diesel fuel. It also makes low-sulfur coke. Located in the Los angeles suburb of Torrance, California, the refinery is literally across the street from residential neighborhoods of medium to high-priced houses. In addition to meeting strict local, state, and federal regulations, the refinery has to make sure its neighbors are satisfied with its operations. To meet this need, the refinery operates a 24-hr hotline that community residents can call to ask questions and voice concerns. The paper discusses agency interaction, department structure, air pollutants, air permits, reporting requirements, the clean air incentives program, NO[sub x] sources, SO[sub x] sources, particulates, fugitive emissions, CO, HF, waste water, groundwater, storm water, soil treatments, and reformulation rules for diesel fuels.

Rhodes, A.K.

1994-05-30T23:59:59.000Z

304

Refinement and Formalization of SemiFormal Use Case Descriptions  

E-Print Network (OSTI)

Behavioral models of computer systems are required for their synthesis, for verification and validation. The system behavior is usually described in requirements specifications. However, most specifications are provided in natural language or in a semi-formal way. Incompleteness and ambiguity inhibit their successful exploitation by tools. In this paper an approach for stepwise refinement and formalization of natural-language or semiformal descriptions is presented. Based on the structure of Use Case descriptions, the formalization of behavioral information is reached by a stepwise transformation of an input text to structured sentences with a well-defined syntax by performing linguistic analyses. The terms of the text are replaced by references to other items, i.e. of the glossary. By providing a tool-supported text output with hypertext-like navigation facilities, a verification of the result by the human experts is provided. The resulting behavioral description is suitable for a derivation of dynamic models, e.g. message-sequence charts and state diagrams.

Matthias Riebisch; Michael Hübner

2004-01-01T23:59:59.000Z

305

WHAT GOOD IS WEALTH WITHOUT HEALTH? THE EFFECT OF HEALTH ON THE MARGINAL UTILITY OF CONSUMPTION  

E-Print Network (OSTI)

We estimate how the marginal utility of consumption varies with health. To do so, we develop a simple model in which the impact of health on the marginal utility of consumption can be estimated from data on permanent income, ...

Finkelstein, Amy

306

Mechanisms for Precipitation Variability of the Eastern Brazil/SACZ Convective Margin  

Science Conference Proceedings (OSTI)

The present study examines the mechanisms for the connection between the precipitation variability in eastern Brazil and the South Atlantic convergence zone (SACZ) convective margin (eastern Brazil/SACZ convective margin) and the variability of ...

H.-Y. Ma; X. Ji; J. D. Neelin; C. R. Mechoso

2011-07-01T23:59:59.000Z

307

Program on Technology Innovation: Advanced Nuclear Technology--Component Margins and Monitoring Database  

Science Conference Proceedings (OSTI)

The Advanced Nuclear Technology Margins and Monitoring Database, available to EPRI members, documents a consensus of experts on issues relating to equipment design margins and monitoring recommendations for large capital, balance-of-plant (BOP) components important to power production.

2008-04-21T23:59:59.000Z

308

HIGH-RESOLUTION SIMULATIONS OF CONVECTION PRECEDING IGNITION IN TYPE Ia SUPERNOVAE USING ADAPTIVE MESH REFINEMENT  

E-Print Network (OSTI)

We extend our previous three-dimensional, full-star simulations of the final hours of convection preceding ignition in Type Ia supernovae to higher resolution using the adaptive mesh refinement capability of our low Mach number code, MAESTRO. We report the statistics of the ignition of the first flame at an effective 4.34 km resolution and general flow field properties at an effective 2.17 km resolution. We find that off-center ignition is likely, with radius of 50 km most favored and a likely range of 40–75 km. This is consistent with our previous coarser (8.68 km resolution) simulations, implying that we have achieved sufficient resolution in our determination of likely ignition radii. The dynamics of the last few hot spots preceding ignition suggest that a multiple ignition scenario is not likely. With improved resolution, we can more clearly see the general flow pattern in the convective region, characterized by a strong outward plume with a lower speed recirculation. We show that the convective core is turbulent with a Kolmogorov spectrum and has a lower turbulent intensity and larger integral length scale than previously thought (on the order of 16 km s?1 and 200 km, respectively), and we discuss the potential consequences for the first flames. Key words: convection – hydrodynamics – methods: numerical – nuclear reactions, nucleosynthesis, abundances – supernovae: general – white dwarfs Online-only material: color figures 1.

A. Nonaka; A. J. Aspden; M. Zingale; A. S. Almgren; J. B. Bell; S. E. Woosley

2012-01-01T23:59:59.000Z

309

West Virginia Higher Education Graduate  

E-Print Network (OSTI)

1. Work Participation And Annualized Wages Of West Virginia Public Higher Education Graduates From This report analyzes the West Virginia industry of employment (and wages) of graduates from state public .................................................................................................1 Results By Industry And Summary Degree

Mohaghegh, Shahab

310

Photodegradation of mutagens in solvent-refined coal liquids  

SciTech Connect

The purpose of this investigation was to evaluate any changes in the chemical composition and microbial mutagenicities of two representative solvent-refined coal (SRC) liquids as a function of exposure time to sunlight and air. This information was desired to assess potential health hazards arising from ground spills of these liquids during production, transport and use. Results of microbial mutagenicity assays using Salmonella typhimurium TA98, conducted after exposure, showed that the mutagenicities of both an SRC-II fuel oil blend and an SRC-I process solvent decreased continuously with exposure time to air and that the decrease was accelerated by simultaneous exposure to simulated sunlight. The liquids were exposed as thin layers supported on surfaces of glass, paper, clay or aluminum; but the type of support had little effect on the results. The contrast between these results and the reported increases of mutagenesis in organisms exposed simultaneously to coal liquids and near-ultraviolet light suggested that short-lived mutagenic intermediates, e.g., organic free radicals, were formed in the liquids during exposure to light. The highest activities of microbial mutagenicity in the SRC liquids were found in fractions rich in amino polycyclic aromatic hydrocarbons (amino PAH). After a 36-hour exposure of the fuel oil blend to air in the dark, the mutagenicity of its amine-rich fraction was reduced by 65%; whereas a 36-hour exposure in the light reduced the mutagenicity of this fraction by 92%. Similar rates of reduction in mutagenicity were achieved in exposures of the process solvent. The mutagenicities of other chemical fractions remained low during exposure.

Kalkwarf, D.R.; Stewart, D.L.; Pelroy, R.A.; Weimer, W.C.

1984-04-01T23:59:59.000Z

311

RAM: a Relativistic Adaptive Mesh Refinement Hydrodynamics Code  

SciTech Connect

The authors have developed a new computer code, RAM, to solve the conservative equations of special relativistic hydrodynamics (SRHD) using adaptive mesh refinement (AMR) on parallel computers. They have implemented a characteristic-wise, finite difference, weighted essentially non-oscillatory (WENO) scheme using the full characteristic decomposition of the SRHD equations to achieve fifth-order accuracy in space. For time integration they use the method of lines with a third-order total variation diminishing (TVD) Runge-Kutta scheme. They have also implemented fourth and fifth order Runge-Kutta time integration schemes for comparison. The implementation of AMR and parallelization is based on the FLASH code. RAM is modular and includes the capability to easily swap hydrodynamics solvers, reconstruction methods and physics modules. In addition to WENO they have implemented a finite volume module with the piecewise parabolic method (PPM) for reconstruction and the modified Marquina approximate Riemann solver to work with TVD Runge-Kutta time integration. They examine the difficulty of accurately simulating shear flows in numerical relativistic hydrodynamics codes. They show that under-resolved simulations of simple test problems with transverse velocity components produce incorrect results and demonstrate the ability of RAM to correctly solve these problems. RAM has been tested in one, two and three dimensions and in Cartesian, cylindrical and spherical coordinates. they have demonstrated fifth-order accuracy for WENO in one and two dimensions and performed detailed comparison with other schemes for which they show significantly lower convergence rates. Extensive testing is presented demonstrating the ability of RAM to address challenging open questions in relativistic astrophysics.

Zhang, Wei-Qun; /KIPAC, Menlo Park; MacFadyen, Andrew I.; /Princeton, Inst. Advanced Study

2005-06-06T23:59:59.000Z

312

A New Fuzzy Support Vector Machine Based on the Weighted Margin  

Science Conference Proceedings (OSTI)

The ideas from fuzzy neural networks and support vector machine (SVM) are incorporated to make SVM classifiers perform better. The influence of the samples with high uncertainty can be decreased by employing the fuzzy membership to weigh the margin of ... Keywords: fuzzy neural networks, fuzzy pattern recognition, margin, maximal margin algorithm, support vector machines

Qing Tao; Jue Wang

2004-11-01T23:59:59.000Z

313

A study on transformation of self-similar processes with arbitrary marginal distributions  

Science Conference Proceedings (OSTI)

Stochastic discrete-event simulation studies of communication networks often require a mechanism to transform self-similar processes with normal marginal distributions into self-similar processes with arbitrary marginal distributions. The problem of ... Keywords: arbitrary marginal distribution, autocorrelation function, inverse cumulative distribution function, self-similar process, stochastic simulation

Hae-Duck J. Jeong; Jong-Suk R. Lee

2006-09-01T23:59:59.000Z

314

Solvent refined coal (SRC) process. Quarterly technical progress report, January 1980-March 1980. [In process streams  

DOE Green Energy (OSTI)

This report summarizes the progress of the Solvent Refined Coal (SRC) project at the SRC Pilot Plant in Fort Lewis, Wahsington, and the Process Development Unit (P-99) in Harmarville, Pennsylvania. After the remaining runs of the slurry preheater survey test program were completed January 14, the Fort Lewis Pilot Plant was shut down to inspect Slurry Preheater B and to insulate the coil for future testing at higher rates of heat flux. Radiographic inspection of the coil showed that the welds at the pressure taps and the immersion thermowells did not meet design specifications. Slurry Preheater A was used during the first 12 days of February while weld repairs and modifications to Slurry Preheater B were completed. Two attempts to complete a material balance run on Powhatan No. 6 Mine coal were attempted but neither was successful. Slurry Preheater B was in service the remainder of the quarter. The start of a series of runs at higher heat flux was delayed because of plugging in both the slurry and the hydrogen flow metering systems. Three baseline runs and three slurry runs of the high heat flux program were completed before the plant was shut down March 12 for repair of the Inert Gas Unit. Attempts to complete a fourth slurry run at high heat flux were unsuccessful because of problems with the coal feed handling and the vortex mix systems. Process Development Unit (P-99) completed three of the four runs designed to study the effect of dissolver L/D ratio. The fourth was under way at the end of the period. SRC yield correlations have been developed that include coal properties as independent variables. A preliminary ranking of coals according to their reactivity in PDU P-99 has been made. Techniques for studying coking phenomenona are now in place.

Not Available

1981-01-01T23:59:59.000Z

315

Voronoi, Delaunay, and Block-Structured Mesh Refinement for Solution of the Shallow-Water Equations on the Sphere  

Science Conference Proceedings (OSTI)

Alternative meshes of the sphere and adaptive mesh refinement could be immensely beneficial for weather and climate forecasts, but it is not clear how mesh refinement should be achieved. A finite-volume model that solves the shallow-water ...

Hilary Weller; Henry G. Weller; Aimé Fournier

2009-12-01T23:59:59.000Z

316

,"U.S. Aviation Gasoline Refiner Sales Volumes"  

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

Aviation Gasoline Refiner Sales Volumes" Aviation Gasoline Refiner Sales Volumes" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Aviation Gasoline Refiner Sales Volumes",2,"Monthly","9/2013","1/15/1983" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_cons_refoth_c_nus_eppv_mgalpd_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_cons_refoth_c_nus_eppv_mgalpd_m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

317

,"Aviation Gasoline Sales to End Users Refiner Sales Volumes"  

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

Aviation Gasoline Sales to End Users Refiner Sales Volumes" Aviation Gasoline Sales to End Users Refiner Sales Volumes" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Aviation Gasoline Sales to End Users Refiner Sales Volumes",60,"Monthly","9/2013","1/15/1983" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_cons_refoth_a_eppv_vtr_mgalpd_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_cons_refoth_a_eppv_vtr_mgalpd_m.htm" ,"Source:","Energy Information Administration"

318

,"U.S. Sales to End Users, Total Refiner Motor Gasoline Sales Volumes"  

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

Users, Total Refiner Motor Gasoline Sales Volumes" Users, Total Refiner Motor Gasoline Sales Volumes" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Products for Refiner Gasoline Volumes",1,"Monthly","9/2013","1/15/1983" ,"Data 2","by Grade",3,"Monthly","9/2013","1/15/1983" ,"Data 3","by Formulation",3,"Monthly","9/2013","1/15/1994" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_cons_refmg_d_nus_vtr_mgalpd_m.xls"

319

,"U.S. Residual Fuel Oil Refiner Sales Volumes"  

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

Refiner Sales Volumes" Refiner Sales Volumes" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Residual Fuel Oil Refiner Sales Volumes",2,"Monthly","9/2013","1/15/1983" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_cons_refres_c_nus_eppr_mgalpd_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_cons_refres_c_nus_eppr_mgalpd_m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

320

,"U.S. Motor Gasoline Refiner Sales Volumes"  

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

Refiner Sales Volumes" Refiner Sales Volumes" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Motor Gasoline Refiner Sales Volumes",6,"Monthly","9/2013","1/15/1983" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_cons_refmg_c_nus_epm0_mgalpd_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_cons_refmg_c_nus_epm0_mgalpd_m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

Note: This page contains sample records for the topic "higher refining margins" 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

Complex higher order derivative theories  

SciTech Connect

In this work is considered a complex scalar field theory with higher order derivative terms and interactions. A procedure is developed to quantize consistently this system avoiding the presence of negative norm states. In order to achieve this goal the original real scalar high order field theory is extended to a complex space attaching a complex total derivative to the theory. Next, by imposing reality conditions the complex theory is mapped to a pair of interacting real scalar field theories without the presence of higher derivative terms.

Margalli, Carlos A.; Vergara, J. David [Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Apartado Postal 70-543, Mexico 04510 DF (Mexico)

2012-08-24T23:59:59.000Z

322

Economic impact of the European Union Emission Trading Scheme : evidence from the refining sector  

E-Print Network (OSTI)

I study the economic impact of the European Union Emission Trading Scheme (EU ETS) on the refining industry in Europe. I contrast previous ex-ante studies with the lessons from a series of interviews I conducted with ...

Lacombe, Romain H

2008-01-01T23:59:59.000Z

323

Enzo-P / Cello: scalable adaptive mesh refinement for astrophysics and cosmology  

Science Conference Proceedings (OSTI)

Cello is a highly-scalable object-oriented adaptive mesh refinement (AMR) framework currently under development. While Cello is expected to be usable within multiple scientific problem domains, we specifically target specialized requirements of astrophysics ...

James Bordner; Michael L. Norman

2012-07-01T23:59:59.000Z

324

Healthful LipidsChapter 3 Production, Processing and Refining of Oils  

Science Conference Proceedings (OSTI)

Healthful Lipids Chapter 3 Production, Processing and Refining of Oils Health Nutrition Biochemistry eChapters Health - Nutrition - Biochemistry AOCS Press Downloadable pdf of Chapter 3 Production, Processing an

325

An Assessment of carbon reduction technology opportunities in the petroleum refining industry.  

Science Conference Proceedings (OSTI)

The refining industry is a major source of CO{sub 2} emissions in the industrial sector and therefore in the future can expect to face increasing pressures to reduce emission levels. The energy used in refining is impacted by market dictates, crude quality, and environmental regulations. While the industry is technologically advanced and relatively efficient opportunities nevertheless exist to reduce energy usage and CO{sub 2} emissions. The opportunities will vary from refinery to refinery and will necessarily have to be economically viable and compatible with each refiner's strategic plans. Recognizing the many factors involved, a target of 15-20% reduction in CO{sub 2} emissions from the refining sector does not appear to be unreasonable, assuming a favorable investment climate.

Petrick, M.

1998-09-14T23:59:59.000Z

326

Fats and Oils Handbook (Nahrungsfette und Öle)Chapter 7 Refining  

Science Conference Proceedings (OSTI)

Fats and Oils Handbook (Nahrungsfette und Öle) Chapter 7 Refining Food Science Health Nutrition Biochemistry eChapters Food Science & Technology Health - Nutrition - Biochemistry Press Downloadable pdf of Chap

327

Process for solvent refining of coal using a denitrogenated and dephenolated solvent  

DOE Green Energy (OSTI)

A process is disclosed for the solvent refining of non-anthracitic coal at elevated temperatures and pressure in a hydrogen atmosphere using a hydrocarbon solvent which before being recycled in the solvent refining process is subjected to chemical treatment to extract substantially all nitrogenous and phenolic constituents from the solvent so as to improve the conversion of coal and the production of oil in the solvent refining process. The solvent refining process can be either thermal or catalytic. The extraction of nitrogenous compounds can be performed by acid contact such as hydrogen chloride or fluoride treatment, while phenolic extraction can be performed by caustic contact or contact with a mixture of silica and alumina.

Garg, Diwakar (Macungie, PA); Givens, Edwin N. (Bethlehem, PA); Schweighardt, Frank K. (Allentown, PA)

1984-01-01T23:59:59.000Z

328

Table 3b. Imported Refiner Acquisition Cost of Crude Oil, Projected...  

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

b. Imported Refiner Acquisition Cost of Crude Oil, Projected vs. Actual" "Projected Price in Nominal Dollars" " (nominal dollars per barrel)" ,1993,1994,1995,1996,1997,1998,1999,20...

329

Indiana No. 2 Fuel Oil Wholesale/Resale Volume by Refiners ...  

U.S. Energy Information Administration (EIA)

Indiana No. 2 Fuel Oil Wholesale/Resale Volume by Refiners (Thousand Gallons per Day) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 ... No.1 and ...

330

A Refined Gomory-Chvátal Closure for Polytopes in the Unit Cube  

E-Print Network (OSTI)

Mar 23, 2012 ... A Refined Gomory-Chvátal Closure for Polytopes in the Unit Cube. Juliane Dunkel(juliane ***at*** mit.edu) Andreas S. Schulz(schulz ***at*** ...

331

Performance Profiles Table Browser: T-28. U.S. Petroleum Refining ...  

U.S. Energy Information Administration (EIA)

Biofuels: Ethanol & Biodiesel ... Less: Cost of Raw Materials Input To Refining. 170,591 227,622 301,165 343,689 357,559 494,471 309,878 Net ...

332

Table A2. Refiner/Reseller Prices of Aviation Fuels, Propane...  

Gasoline and Diesel Fuel Update (EIA)

- W 73.5 See footnotes at end of table. A2. RefinerReseller Prices of Aviation Fuels, Propane, and Kerosene, by PAD District, 1983-Present Energy Information Administration ...

333

Error Characteristics of Two Grid Refinement Approaches in Aquaplanet Simulations: MPAS-A and WRF  

Science Conference Proceedings (OSTI)

This study compares the error characteristics associated with two grid refinement approaches including global variable resolution and nesting for high-resolution regional climate modeling. The global variable-resolution model, Model for Prediction ...

Samson Hagos; Ruby Leung; Sara A. Rauscher; Todd Ringler

2013-09-01T23:59:59.000Z

334

EASURING IMPROVEMENT IN THE ENERGY PERFORMANCE OF THE U.S. CORN REFINING INDUSTRY  

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

| P | P a g e MEASURING IMPROVEMENT IN THE ENERGY PERFORMANCE OF THE U.S. CORN REFINING INDUSTRY SPONSORED BY THE U.S. ENVIRONMENTAL PROTECTION AGENCY AS PART OF THE ENERGY STAR® PROGRAM GALE A. BOYD AND CHRISTIAN DELGADO DUKE UNIVERSITY DEPARTMENT OF ECONOMICS BOX 90097, DURHAM, NC 27708 JULY 10, 2012 2 | P a g e MEASURING IMPROVEMENT IN THE ENERGY PERFORMANCE OF THE U.S. CORN REFINING INDUSTRY CONTENTS Figures .................................................................................................................................................................................................................. 3 Tables ................................................................................................................................................................................................................... 3

335

Refine your search Select options from the menu on the left hand  

E-Print Network (OSTI)

://psu.summon.serialssolutions.comhttp://psu.summon.serialssolutions.com F I N A L LY : RESEARCH AS EASYAS 1-2-3 #12;1 Enter search term into search box. 2 Refine results relevant articles were published in that year. Include or Exclude subject terms from your searchRefine your search Select options from the menu on the left hand side of the results screen

Yener, Aylin

336

Refining Event Extraction Through Cross-document Inference  

E-Print Network (OSTI)

We apply the hypothesis of “One Sense Per Discourse ” (Yarowsky, 1995) to information extraction (IE), and extend the scope of “discourse” from one single document to a cluster of topically-related documents. We employ a similar approach to propagate consistent event arguments across sentences and documents. Combining global evidence from related documents with local decisions, we design a simple scheme to conduct cross-document inference for improving the ACE event extraction task 1. Without using any additional labeled data this new approach obtained 7.6% higher F-Measure in trigger labeling and 6% higher F-Measure in argument labeling over a state-of-the-art IE system which extracts events independently for each sentence. 1

Heng Ji; Ralph Grishman

2008-01-01T23:59:59.000Z

337

Microsoft PowerPoint - genealogy of major US refiners (00 to 09).ppt  

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

Of Major U.S. Refiners Of Major U.S. Refiners 2001 2004 2005 2006 2000 2002 Diamond Shamrock Ultramar j 6/01 12/01 9/97 12/96 Total North America Valero Salomon (Basis) Huntway Valero Valero Ultramar Diamond Shamrock (UDS) UDS 5/97 Notes, footnotes, and source notes are at the bottom of these figures. 2003 Clark Refining g 9/05 Valero Valero 3/98 Mapco Williams Williams Companies d 3/03 d Premcor h 1/89 4/00 12/98 BP America BP Amoco ARCO BP America SOHIO BP America b Sun Company Sunoco r 1/04 o El Paso 1/01 Pacific Refining (jv) Coastal Orion Valero 7/03 6/01 o El Paso 12/88 n 2007 2008 2009 BP-Husky Refining LLC (jv) Husky 7/07 i 4/08 c 10/98 l 8/94 q 9/89 p 12/88 a 7/94 e 12/98 f 6/00 m 9/00 k 5/04 g Holly 6/03 s 6/09 t 12/09 u Holly Genealogy Of Major U.S. Refiners (continued) 2001 2004 2005 2006 2000 2002 2003 2007 2008 2009 1/98 USX (Marathon) 10/98 y Ashland Marathon Lyondell

338

Resource allocation using quantification of margins and uncertainty.  

SciTech Connect

There is an increasing need to assess the performance of high consequence systems using a modeling and simulation based approach. Central to this approach are the need to quantify the uncertainties present in the system and to compare the system response to an expected performance measure. At Sandia National Laboratories, this process is referred to as quantification of margins and uncertainties or QMU. Depending on the outcome of the assessment, there might be a need to increase the confidence in the predicted response of a system model; thus a need to understand where resources need to be allocated to increase this confidence. This paper examines the problem of resource allocation done within the context of QMU. An optimization based approach to solving the resource allocation is considered and sources of aleatoric and epistemic uncertainty are included in the calculations.

Mahadevan, Sankaran (Vanderbilt University, Nashville, TN); Urbina, Angel; Paez, Thomas Lee (Thomas Paez Consulting, Durango, CO)

2010-03-01T23:59:59.000Z

339

Generic Planning Target Margin for Rectal Cancer Treatment Setup Variation  

SciTech Connect

Purpose: To calculate the generic planning target margin (GPTM) for patients receiving radiation therapy (RT) for rectal cancer placed in a prone position with a customized cradle for small-bowel exclusion. Methods and Materials: A total of 25 consecutive rectal cancer patients were treated for 25 or 28 fractions in a prone position using a cradle to maximize small bowel exclusion. Treatment planning computed tomography (CT) scans were used to create orthogonally digitally reconstructed radiographs (DRRs) for portal image registration, which were compared with daily portal images from an electronic portal-imaging device (EPID). Translation values needed to align the DRRs and EPIDs were recorded for the superior to inferior (SI), right to left (RL), and anterior to posterior (AP) directions, and used to calculate the GPTM using the four-parameter model. Age, weight, and body mass index were tested compared with the setup variation using a Pearson correlation and a t test for significance. Gender versus setup variation was compared with a t test. Results: A total of 1,723 EPID images were reviewed. The GPTM was 10 mm superior, 8 mm inferior, 7 mm RL and 10 mm AP. Age and gender were unrelated to setup variation. Weight was significantly associated with systematic AP variation (p < 0.05). BMI was significantly associated with systematic SI (p < 0.05) and AP (p < 0.01) variation and random RL variation (p < 0.05). Conclusions: The GPTM for rectal cancer is asymmetric with a maximum of 10 mm in the superior, anterior and posterior dimensions. Body mass index may effect setup variation. Research using advanced treatment planning should include these margins in the planning target volume definition.

Robertson, John M. [Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, MI (United States)], E-mail: jrobertson@beaumont.edu; Campbell, Jonathon P.; Yan Di [Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, MI (United States)

2009-08-01T23:59:59.000Z

340

RE-IMAGINING CALIFORNIA HIGHER EDUCATION  

E-Print Network (OSTI)

Re-Imagining California Higher Education * October 2010 Johnfamed Master Plan for Higher Education, arguably the singlethe future of a system of higher education in the annals of

John Aubrey Douglass

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "higher refining margins" 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

Essays on the Economics of Higher Education  

E-Print Network (OSTI)

3 Does Higher Education Cause Political Participation? 3.1on enrolling into higher education and college. Using 2measures of higher education on the instrument . . . . . .

SOLIS VIVALLOS, ALEX

2012-01-01T23:59:59.000Z

342

Class, Race, and Higher Education in America  

E-Print Network (OSTI)

many more questions for higher education, but at the leastthey overcome. But higher education in America has already1989), Review of Higher Education Policy In California,

Trow, Martin

2006-01-01T23:59:59.000Z

343

WHAT FUTURE FOR UK HIGHER EDUCATION?  

E-Print Network (OSTI)

2009) “Students ask if higher education is really worth itrising social costs of higher education are not matched bystandards? ” Times Higher Education 17 July. Alderman, G.

Roger Brown

2010-01-01T23:59:59.000Z

344

Seismic margin review of the Maine Yankee Atomic Power Station: Summary report  

SciTech Connect

This Summary Report is the first of three volumes for the Seismic Margin Review of the Maine Yankee Atomic Power Station. Volume 2 is the Systems Analysis of the first trial seismic margin review. Volume 3 documents the results of the fragility screening for the review. The three volumes demonstrate how the seismic margin review guidance (NUREG/CR-4482) of the Nuclear Regulatory Commission (NRC) Seismic Design Margins Program can be applied. The overall objectives of the trial review are to assess the seismic margins of a particular pressurized water reactor, and to test the adequacy of this review approach, quantification techniques, and guidelines for performing the review. Results from the trial review will be used to revise the seismic margin methodology and guidelines so that the NRC and industry can readily apply them to assess the inherent quantitative seismic capacity of nuclear power plants.

Prassinos, P.G.; Murray, R.C.; Cummings, G.E.

1987-03-01T23:59:59.000Z

345

Seismic margin review of the Maine Yankee Atomic Power Station: Fragility analysis  

SciTech Connect

This Fragility Analysis is the third of three volumes for the Seismic Margin Review of the Maine Yankee Atomic Power Station. Volume 1 is the Summary Report of the first trial seismic margin review. Volume 2, Systems Analysis, documents the results of the systems screening for the review. The three volumes are part of the Seismic Margins Program initiated in 1984 by the Nuclear Regulatory Commission (NRC) to quantify seismic margins at nuclear power plants. The overall objectives of the trial review are to assess the seismic margins of a particular pressurized water reactor, and to test the adequacy of this review approach, quantification techniques, and guidelines for performing the review. Results from the trial review will be used to revise the seismic margin methodology and guidelines so that the NRC and industry can readily apply them to assess the inherent quantitative seismic capacity of nuclear power plants.

Ravindra, M. K.; Hardy, G. S.; Hashimoto, P. S.; Griffin, M. J.

1987-03-01T23:59:59.000Z

346

Marginal Annotation in Medieval Romance Manuscripts: Understanding the Contemporary Reception of the Genre.  

E-Print Network (OSTI)

?? The extra-textual apparatus of a manuscript is an important aspect of the presentation and organization of the text itself. Marginal annotation is a vital… (more)

Eddy, Nicole

2012-01-01T23:59:59.000Z

347

Do Americans Consume Too Little Natural Gas? An Empirical Test of Marginal Cost Pricing  

E-Print Network (OSTI)

to maximize the total number of customers and thus the totalon the total number of customers, and the “marginal customercharacterized by a large number of customers, each consuming

Davis, Lucas; Muehlegger, Erich

2009-01-01T23:59:59.000Z

348

Does Marginal Price Matter? A Regression Discontinuity Approach to Estimating Water Demand  

E-Print Network (OSTI)

Does Marginal Price Matter? A Regression DiscontinuityCCF discontinuity, though, does not correspond to any waterin the RD analysis. A consumer does not know her exact water

Nataraj, Shanthi; Hanemann, W. Michael

2008-01-01T23:59:59.000Z

349

Treatment of Passive Component Reliability in Risk-Informed Safety Margin Characterization FY 2010 Report  

Science Conference Proceedings (OSTI)

The Risk-Informed Safety Margin Characterization (RISMC) pathway is a set of activities defined under the U.S. Department of Energy (DOE) Light Water Reactor Sustainability Program. The overarching objective of RISMC is to support plant life-extension decision-making by providing a state-of-knowledge characterization of safety margins in key systems, structures, and components (SSCs). A technical challenge at the core of this effort is to establish the conceptual and technical feasibility of analyzing safety margin in a risk-informed way, which, unlike conventionally defined deterministic margin analysis, is founded on probabilistic characterizations of SSC performance.

Robert W Youngblood

2010-09-01T23:59:59.000Z

350

International higher education: Models, conditions and issues  

E-Print Network (OSTI)

The PASCN Discussion Paper Series constitutes studies that are preliminary and subject to further revisions and review. They are being circulated in a limited number of copies only for purposes of soliciting comments and suggestions for further refinements. The views and opinions expressed are those of the author(s) and do not necessarily reflect those of the Network. Not for quotation without permission from the author(s).PASCN P HILIPPINE

Allan B. Bernardo; S Tudy; C Enter; N Etwork; Allan B. Bernardo; De La

2003-01-01T23:59:59.000Z

351

Need for refining capacity creates opportunities for producers in Middle East  

SciTech Connect

Oil industry interest in refining has revived in the past few years in response to rising oil consumption. The trend creates opportunities, for countries in the Middle East, which do not own refining assets nearly in proportion to their crude oil reserved. By closing this gap between reserves and refining capacity, the countries can ease some of the instability now characteristic of the oil market. Some major oil producing countries have begun to move downstream. During the 1980s, Venezuela, Kuwait, Saudi Arabia, Libya, and other members of the Organization of Petroleum Exporting Countries acquired refining assets through direct total purchase or joint ventures. Nevertheless, the oil industry remains largely unintegrated, with the Middle East holding two thirds of worldwide oil reserves but only a small share downstream. As worldwide refining capacity swings from a period of surplus toward one in which the need for new capacity will be built. The paper discusses background of the situation, shrinking surplus, investment requirements, sources of capital, and shipping concerns.

Ali, M.S.S. (Bahrain National Oil Co., Awali (Bahrain))

1994-07-11T23:59:59.000Z

352

Impact of Higher Vanadium Levels on Smelter Operations  

Science Conference Proceedings (OSTI)

This was driven by crude oil changes at a refinery supplying one of the primary ... Changes in Global Refining and Its Impact on Anode Quality Petroleum Coke.

353

Seismic Safety Margins Research Program. Phase I, final report - overview  

SciTech Connect

The Seismic Safety Margins Research Program (SSMRP) is a multiyear, multiphase program whose overall objective is to develop improved methods for seismic safety assessments of nuclear power plants, using a probabilistic computational procedure. The program is being carried out at the Lawrence Livermore National Laboratory and is sponsored by the US Nuclear Regulatory Commission, Office of Nuclear Regulatory Research. Phase I of the SSMRP was successfully completed in January 1981: A probabilistic computational procedure for the seismic risk assessment of nuclear power plants has been developed and demonstrated. The methodology is implemented by three computer programs: HAZARD, which assesses the seismic hazard at a given site, SMACS, which computes in-structure and subsystem seismic responses, and SEISIM, which calculates system failure probabilities and radioactive release probabilities, given (1) the response results of SMACS, (2) a set of event trees, (3) a family of fault trees, (4) a set of structural and component fragility descriptions, and (5) a curve describing the local seismic hazard. The practicality of this methodology was demonstrated by computing preliminary release probabilities for Unit 1 of the Zion Nuclear Power Plant north of Chicago, Illinois. Studies have begun aimed at quantifying the sources of uncertainty in these computations. Numerous side studies were undertaken to examine modeling alternatives, sources of error, and available analysis techniques. Extensive sets of data were amassed and evaluated as part of projects to establish seismic input parameters and to produce the fragility curves. 66 refs., 29 figs., 10 tabs.

Smith, P.D.; Dong, R.G.; Bernreuter, D.L.; Bohn, M.P.; Chuang, T.Y.; Cummings, G.E.; Johnson, J.J.; Mensing, R.W.; Wells, J.E.

1981-03-06T23:59:59.000Z

354

,"Conventional Gasoline Sales to End Users, Total Refiner Sales Volumes"  

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

Conventional Gasoline Sales to End Users, Total Refiner Sales Volumes" Conventional Gasoline Sales to End Users, Total Refiner Sales Volumes" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Conventional Gasoline Sales to End Users, Total Refiner Sales Volumes",60,"Monthly","9/2013","1/15/1994" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_cons_refmg_a_epm0u_vtr_mgalpd_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_cons_refmg_a_epm0u_vtr_mgalpd_m.htm" ,"Source:","Energy Information Administration"

355

,"U.S. Reformulated Gasoline Refiner Sales Volumes"  

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

Reformulated Gasoline Refiner Sales Volumes" Reformulated Gasoline Refiner Sales Volumes" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Reformulated Gasoline Refiner Sales Volumes",6,"Monthly","9/2013","1/15/1994" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_cons_refmg_c_nus_epm0r_mgalpd_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_cons_refmg_c_nus_epm0r_mgalpd_m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

356

DOE - Office of Legacy Management -- National Smelting and Refining Co - OH  

Office of Legacy Management (LM)

Smelting and Refining Co - Smelting and Refining Co - OH 20 FUSRAP Considered Sites Site: NATIONAL SMELTING & REFINING CO. (OH.20) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: 6800 Grand Avenue , Cleveland , Ohio OH.20-1 Evaluation Year: 1993 OH.20-2 Site Operations: No indication of other test operations using very limited quantities of slag material. OH.20-1 Site Disposition: Eliminated - Potential for contamination considered remote based upon limited scope of activities at the site OH.20-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium - No Indication of Anything But Trace Amounts Handled OH.20-1 Radiological Survey(s): None Indicated Site Status: Eliminated from consideration under FUSRAP

357

,"No. 2 Distillate Sales to End Users Refiner Sales Volumes"  

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

Sales to End Users Refiner Sales Volumes" Sales to End Users Refiner Sales Volumes" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","No. 2 Distillate Sales to End Users Refiner Sales Volumes",60,"Monthly","9/2013","1/15/1983" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_cons_refoth_a_epd2_vtr_mgalpd_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_cons_refoth_a_epd2_vtr_mgalpd_m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

358

The Impact of Environmental Compliance Costs on U.S. Refining Profitability  

Gasoline and Diesel Fuel Update (EIA)

The Impact of Environmental Compliance Costs on U.S. Refining Profitability October 1997 Energy Information Administration Office of Energy Markets and End Use U.S. Department of Energy Washington, DC 20585 This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the Department of Energy. The information contained herein should not be construed as advocating or reflecting any policy position of the Department of Energy or any other organization. Energy Information Administration/The Impact of Environmental Compliance Costs on U.S. Refining Profitability ii Contacts The Impact of Environmental Compliance Costs on U.S. Refining Profitability was prepared in the Office of Energy Markets and End Use of the Energy Information Administration, U.S. Department of Energy under the general direction of W. Calvin

359

Overview of Eulerian Methods and Block Adaptive Mesh Refinement Techniques at Sandia  

National Nuclear Security Administration (NNSA)

Crawford, D.A. et al. 1 Crawford, D.A. et al. 1 Overview of Eulerian Methods and Block Adaptive Mesh Refinement Techniques at Sandia D. A. Crawford* and D. M. Hensinger* * Sandia National Laboratories, Albuquerque, New Mexico, USA. Multi-material shock-physics Eulerian codes have undergone several generations of refinement in as many decades at Sandia. The widely used code, CTH, can trace its lineage to the one- and two-dimensional codes CHARTD and CSQ. An adaptive mesh refinement (AMR) strategy has been implemented in CTH, providing improved performance and memory utilization and evidence of improved scaling for large problems. The ALE (Arbitrary Lagrangian Eulerian) code ALEGRA combines the multi- material shock physics capabilities found in CTH with a finite element

360

Preliminary data summary for the used-oil reclamation and re-refining industry  

Science Conference Proceedings (OSTI)

The summaries contain data about industrial facilities in various industries discharging pollutants in their wastewaters and considers whether the EPA should pursue regulations to control such discharges. The summaries were prepared in order to allow EPA to respond to the mandate of Section 304(m) of the Clean Water Act. Summaries for categories already subject to rulemaking were developed for comparison purposes. The report is part of the process by which EPA is considering what management standards may be appropriate for the recycling of used oil, in response to the requirements mandated by these Acts. The study has attempted to characterize and profile the Oil Reclaimer/Re-Refining Industry. The goals of this preliminary effort were to: conduct a literature review, perform an industry profile, site visit re-refiners, screen sample re-refiners, and develop a Preliminary Data Summary.

Troy, K.

1989-09-01T23:59:59.000Z

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


361

New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear Plants |  

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

New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear Plants New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear Plants January 31, 2012 - 2:09pm Addthis The Electric Power Research Institute (EPRI), the U.S. Department of Energy (DOE), and the U.S. Nuclear Regulatory Commission (NRC) released a new seismic study today that will help U.S. nuclear facilities in the central and eastern United States reassess seismic hazards. The Central and Eastern United States Seismic Source Characterization for Nuclear Facilities model and report is the culmination of a four-year effort among the participating organizations and replaces previous seismic source models used by industry and government since the late 1980s. The NRC is requesting U.S. nuclear power plants to reevaluate seismic

362

,"U.S. Conventional, Average Refiner Gasoline Prices"  

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

Conventional, Average Refiner Gasoline Prices" Conventional, Average Refiner Gasoline Prices" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Conventional, Average Refiner Gasoline Prices",6,"Monthly","9/2013","1/15/1994" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_pri_refmg2_c_nus_epm0u_dpgal_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_pri_refmg2_c_nus_epm0u_dpgal_m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

363

,"U.S. Reformulated, Average Refiner Gasoline Prices"  

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

Reformulated, Average Refiner Gasoline Prices" Reformulated, Average Refiner Gasoline Prices" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Reformulated, Average Refiner Gasoline Prices",6,"Monthly","9/2013","1/15/1994" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_pri_refmg2_c_nus_epm0r_dpgal_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_pri_refmg2_c_nus_epm0r_dpgal_m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

364

,"Motor Gasoline Sales to End Users, Total Refiner Sales Volumes"  

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

Users, Total Refiner Sales Volumes" Users, Total Refiner Sales Volumes" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Motor Gasoline Sales to End Users, Total Refiner Sales Volumes",60,"Monthly","9/2013","1/15/1983" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_cons_refmg_a_epm0_vtr_mgalpd_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_cons_refmg_a_epm0_vtr_mgalpd_m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

365

New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear Plants |  

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

New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear Plants New Seismic Model Will Refine Hazard Analysis at U.S. Nuclear Plants January 31, 2012 - 2:09pm Addthis The Electric Power Research Institute (EPRI), the U.S. Department of Energy (DOE), and the U.S. Nuclear Regulatory Commission (NRC) released a new seismic study today that will help U.S. nuclear facilities in the central and eastern United States reassess seismic hazards. The Central and Eastern United States Seismic Source Characterization for Nuclear Facilities model and report is the culmination of a four-year effort among the participating organizations and replaces previous seismic source models used by industry and government since the late 1980s. The NRC is requesting U.S. nuclear power plants to reevaluate seismic

366

,"Residual Fuel Oil Sales to End Users Refiner Sales Volumes"  

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

Sales to End Users Refiner Sales Volumes" Sales to End Users Refiner Sales Volumes" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Residual Fuel Oil Sales to End Users Refiner Sales Volumes",9,"Monthly","9/2013","1/15/1983" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_cons_refres_a_eppr_vtr_mgalpd_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_cons_refres_a_eppr_vtr_mgalpd_m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

367

,"Kerosene-Type Jet Fuel Sales to End Users Refiner Sales Volumes"  

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

Kerosene-Type Jet Fuel Sales to End Users Refiner Sales Volumes" Kerosene-Type Jet Fuel Sales to End Users Refiner Sales Volumes" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Kerosene-Type Jet Fuel Sales to End Users Refiner Sales Volumes",60,"Monthly","9/2013","1/15/1983" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_cons_refoth_a_epjk_vtr_mgalpd_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_cons_refoth_a_epjk_vtr_mgalpd_m.htm" ,"Source:","Energy Information Administration"

368

,"U.S. Conventional Gasoline Refiner Sales Volumes"  

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

Conventional Gasoline Refiner Sales Volumes" Conventional Gasoline Refiner Sales Volumes" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Conventional Gasoline Refiner Sales Volumes",6,"Monthly","9/2013","1/15/1994" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_cons_refmg_c_nus_epm0u_mgalpd_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_cons_refmg_c_nus_epm0u_mgalpd_m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

369

,"No. 2 Diesel Fuel Sales to End Users Refiner Sales Volumes"  

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

Sales to End Users Refiner Sales Volumes" Sales to End Users Refiner Sales Volumes" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","No. 2 Diesel Fuel Sales to End Users Refiner Sales Volumes",60,"Monthly","9/2013","1/15/1994" ,"Release Date:","12/2/2013" ,"Next Release Date:","1/2/2014" ,"Excel File Name:","pet_cons_refoth_a_epd2d_vtr_mgalpd_m.xls" ,"Available from Web Page:","http://www.eia.gov/dnav/pet/pet_cons_refoth_a_epd2d_vtr_mgalpd_m.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.gov"

370

A Parallel Ocean Model With Adaptive Mesh Refinement Capability For Global Ocean Prediction  

DOE Green Energy (OSTI)

An ocean model with adaptive mesh refinement (AMR) capability is presented for simulating ocean circulation on decade time scales. The model closely resembles the LLNL ocean general circulation model with some components incorporated from other well known ocean models when appropriate. Spatial components are discretized using finite differences on a staggered grid where tracer and pressure variables are defined at cell centers and velocities at cell vertices (B-grid). Horizontal motion is modeled explicitly with leapfrog and Euler forward-backward time integration, and vertical motion is modeled semi-implicitly. New AMR strategies are presented for horizontal refinement on a B-grid, leapfrog time integration, and time integration of coupled systems with unequal time steps. These AMR capabilities are added to the LLNL software package SAMRAI (Structured Adaptive Mesh Refinement Application Infrastructure) and validated with standard benchmark tests. The ocean model is built on top of the amended SAMRAI library. The resulting model has the capability to dynamically increase resolution in localized areas of the domain. Limited basin tests are conducted using various refinement criteria and produce convergence trends in the model solution as refinement is increased. Carbon sequestration simulations are performed on decade time scales in domains the size of the North Atlantic and the global ocean. A suggestion is given for refinement criteria in such simulations. AMR predicts maximum pH changes and increases in CO{sub 2} concentration near the injection sites that are virtually unattainable with a uniform high resolution due to extremely long run times. Fine scale details near the injection sites are achieved by AMR with shorter run times than the finest uniform resolution tested despite the need for enhanced parallel performance. The North Atlantic simulations show a reduction in passive tracer errors when AMR is applied instead of a uniform coarse resolution. No dramatic or persistent signs of error growth in the passive tracer outgassing or the ocean circulation are observed to result from AMR.

Herrnstein, A

2005-09-08T23:59:59.000Z

371

Refiners look at H sub 2 SO sub 4 alkylation and catalytic reforming  

Science Conference Proceedings (OSTI)

Sulfuric acid alkylation and catalytic reforming drew many questions at the most recent National Petroleum Refiners Association (NPRA) question and answer session on refining and petrochemical technology. At this annual meeting, presubmitted questions are answered by a panel of experts. For more information on the meeting's format, see OGJ, Mar. 16, p. 37. This third and final article in the series of excerpts from the 1991 NPRA Q and A Session examines such pertinent alkylation topics as tertiary amyl methyl ether (TAME) raffinate processing and unit operation during acid runaway. Also discussed are skewed platinum/rhenium reforming catalyst and how catalyst life affects reformate aromatics levels.

Not Available

1992-04-27T23:59:59.000Z

372

Large scale continuous visual event recognition using max-margin Hough transformation framework  

Science Conference Proceedings (OSTI)

In this paper we propose a novel method for continuous visual event recognition (CVER) on a large scale video dataset using max-margin Hough transformation framework. Due to high scalability, diverse real environmental state and wide scene variability ... Keywords: Continuous visual event, Event detection, Large scale, Max-margin Hough transform

Bhaskar Chakraborty, Jordi Gonzílez, F. Xavier Roca

2013-10-01T23:59:59.000Z

373

Marginal Hilbert Spectrum Based on EMD Reconstruction and its Application in Fault Diagnosis of Cooling Tower  

Science Conference Proceedings (OSTI)

HHT (Hilbert-Huang Transform) is one kind of adaptive signal processing method and it is suitable for processing nonlinear and non-stationary signal. Amplitude-frequency characteristics of signal are accurately demonstrated through marginal Hilbert spectrum ... Keywords: Vibration signal, marginal Hilbert spectrum, Reconstruction filter, Fault diagnosis, Cooling tower

He Dhengyun, Yi Ding

2013-01-01T23:59:59.000Z

374

Faunal responses to oxygen gradients on the Pakistan margin: A comparison of foraminiferans, macrofauna and megafauna  

E-Print Network (OSTI)

Faunal responses to oxygen gradients on the Pakistan margin: A comparison of foraminiferans Oxygen minimum zone Benthos Arabian Sea Biodiversity Deep sea a b s t r a c t The Pakistan Margin where oxygen levels were lowest. The rarity of larger animals between 300 and 700 m on the Pakistan

Levin, Lisa

375

Estimating the marginal cost of reducing global fossil fuel CO[sub 2] emissions  

Science Conference Proceedings (OSTI)

This paper estimates the marginal, total, and average cost and effectiveness of carbon taxes applied either by the Organization for Economic Cooperation and Development (OECD) members alone, or as part of a global cooperative strategy, to reduce potential future emissions and their direct implications for employment in the US coal industry. Two sets of cases are examined, one set in which OECD members acts alone, and another set in which the world acts in concert. In each case set taxes are examined which achieve four alternative levels of emissions reduction: halve the rate of emissions growth, no emissions growth, 20[percent] reduction from 1988 levels, and 50[percent] reduction from 1988 levels. For the global cooperation case, carbon tax rates of [dollar sign]32, [dollar sign]113, [dollar sign]161, and [dollar sign]517 per metric ton of carbon (mtC) were needed in the year 2025 to achieve the objectives. Total costs were respectively [dollar sign]40, [dollar sign]178, [dollar sign]253, and [dollar sign]848 billions of 1990 US dollars per year in the year 2025. Average costs were [dollar sign]32, [dollar sign]55, [dollar sign]59, and [dollar sign]135 per mtC. Costs were significantly higher in the cases in which the OECD members states acted alone. OECD member states, acting alone, could not reduce global emissions by 50[percent] or 20[percent] relative to 1988, given reference case assumptions regarding developing and recently planned nations economic growth.

Edmonds, J.; Barns, D.W.; McDonald, S. (Pacific Northwest Lab., Washington, DC (United States))

1992-01-01T23:59:59.000Z

376

Development of a hybrid margin angle controller for HVDC continuous operation  

SciTech Connect

The objective of this paper is to present a new hybrid margin angle control method for HVDC continuous operation under AC system fault conditions. For stable continuous operation of HVDC systems, the margin angle controller must be designed to maintain the necessary margin angle to avoid commutation failures. The proposed method uses the open loop margin angle controller (MAC) as the basic controller, and adds output from the closed loop MAC to correct the control angle. A fast voltage detection algorithm is used for open loop control, and margin angle reference correction using harmonics detection for closed loop control are also developed. The combination of open and closed loop control provides quick responses when faults occur with stable and speedy recovery after fault clearance. The effectiveness of the developed controller is confirmed through EMTP digital simulations and also with the experiments using an analogue simulator.

Sato, M. [Kansai Electric Power Co., Osaka (Japan); Yamaji, K. [Shikoku Electric Power Co., Takamatsu (Japan); Sekita, M. [Electric Power Development Co., Tokyo (Japan); Amano, M.; Nishimura, M.; Konishi, H.; Oomori, T. [Hitachi, Ltd. (Japan)

1996-11-01T23:59:59.000Z

377

Human Health Risk Assessment for Petroleum Refining Industry of the Remaining Air Toxics after MACT I Emissions Reductions.  

E-Print Network (OSTI)

??Inhalation risks on human health for hazardous air pollutants emitted from MACT I petroleum refining industry were determined using EPA HEM-3 Program. Methodology included compiling… (more)

Roa, Nadia C.

2008-01-01T23:59:59.000Z

378

Current Transformations in Norwegian Higher Education  

E-Print Network (OSTI)

from Thatcher's higher education reforms in the early 1980'Idea and American Higher Education: 1850 to the 1960 MasterIN NORWEGIAN HIGHER EDUCATION 1 March 2002 Kim Gunnar

Helsvig, Kim Gunnar

2002-01-01T23:59:59.000Z

379

REFINEMENT OF THE NEPHELINE DISCRIMINATOR: RESULTS OF A PHASE II STUDY  

SciTech Connect

Twenty five glass compositions were selected for a Phase II study to assess the potential for reducing the conservatism in the nepheline discriminator. The glass compositions were restricted to regions that fell within the validation ranges of the DWPF PCCS models. In addition, the liquidus temperature model was used to restrict the glass compositions so that they could all be melted at the same temperature. The nepheline discriminator was used to force the glass compositions into regions where nepheline formation was predicted to occur. The glasses were fabricated in the laboratory and characterized for crystallization and chemical durability after both quenching and slow cooling. Chemical analysis showed that the fabricated glasses met the target compositions. Nepheline was identified in one of the quenched glasses and several of the CCC glasses. There was no clear relationship between the types of crystallization that occurred in a particular glass and its location on the Al{sub 2}O{sub 3}-Na{sub 2}O-SiO{sub 2} ternary diagram. A partitioning algorithm was used to identify trends in crystallization behavior based on glass composition. Generally, for the CCC glasses MnO influenced the crystallization of spinels and B{sub 2}O{sub 3} and SiO{sub 2} influenced the crystallization of nepheline. Measured durability responses varied from acceptable to unacceptable depending on the glass composition and type and extent of crystallization that occurred. It was not possible to identify any linear effects of composition on chemical durability performance for this set of study glasses. The results were not sufficient to recommend modification of the current nepheline discriminator at this time. It is recommended that the next series of experiments continue to focus not only on compositional regions where the PCCS models are considered applicable (i.e., the model validation ranges), but also be restricted to compositional regions where acceptable glasses are predicted to be produced but are disallowed by the current nepheline discriminator. This may help identify a path for gaining access to glass compositions that are limited by only the nepheline constraint. Dependencies on cooling rates should also be evaluated. A better understanding of these regions, as well as the impacts of B{sub 2}O{sub 3} and CaO on nepheline crystallization, may allow for relaxation or refinement of the nepheline constraint and subsequently allow for higher Al{sub 2}O{sub 3} concentrations.

Fox, K; Tommy Edwards, T

2008-11-21T23:59:59.000Z

380

A dynamic mesh refinement technique for Lattice Boltzmann simulations on octree-like grids  

Science Conference Proceedings (OSTI)

In this contribution, we present our new adaptive Lattice Boltzmann implementation within the Peano framework, with special focus on nanoscale particle transport problems. With the continuum hypothesis not holding anymore on these small scales, new physical ... Keywords: Adaptive Cartesian grids, Brownian, Dynamic grid refinement, Fluctuations, Lattice Boltzmann, Multiscale, Particle transport

Philipp Neumann; Tobias Neckel

2013-02-01T23:59:59.000Z

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


381

Table 7. U.S. Refiner Motor Gasoline Volumes by Grade and Sales...  

Annual Energy Outlook 2012 (EIA)

33.9 215.8 9.7 10.0 12.1 16.3 0.0 28.4 See footnotes at end of table. 7. U.S. Refiner Motor Gasoline Volumes by Grade and Sales Type 14 Energy Information Administration ...

382

Table 7. U.S. Refiner Motor Gasoline Volumes by Grade and Sales...  

Annual Energy Outlook 2012 (EIA)

35.2 213.6 9.5 9.8 12.9 16.6 NA 29.5 See footnotes at end of table. 7. U.S. Refiner Motor Gasoline Volumes by Grade and Sales Type 14 Energy Information Administration ...

383

Table 6. U.S. Refiner Motor Gasoline Prices by Grade and Sales...  

Annual Energy Outlook 2012 (EIA)

61.5 67.3 89.8 89.5 82.2 69.4 71.1 74.9 See footnotes at end of table. 6. U.S. Refiner Motor Gasoline Prices by Grade and Sales Type 12 Energy Information Administration ...

384

Table 6. U.S. Refiner Motor Gasoline Prices by Grade and Sales...  

Annual Energy Outlook 2012 (EIA)

62.2 68.5 90.1 89.6 82.4 70.9 NA 75.9 See footnotes at end of table. 6. U.S. Refiner Motor Gasoline Prices by Grade and Sales Type 12 Energy Information Administration ...

385

Formal validation of automated policy refinement in the management of network security systems  

Science Conference Proceedings (OSTI)

Policy hierarchies and automated policy refinement are powerful approaches to simplify administration of security services in complex network environments. A crucial issue for the practical use of these approaches is to ensure the validity of the policy ... Keywords: Formal validation, Model-based management, Network security, Policy based management, Security policies

João Porto de Albuquerque; Heiko Krumm; Paulo Lício de Geus

2010-04-01T23:59:59.000Z

386

Refining Abstract Machine Specifications of the Steam Boiler Control to Well Documented  

E-Print Network (OSTI)

Refining Abstract Machine Specifications of the Steam Boiler Control to Well Documented Executable the steam boiler control specification problem to il­ lustrate how the evolving algebra approach and Specification, in June 1995, to control the Karlsruhe steam boiler simulator satisfactorily. The abstract

Börger, Egon

387

Refining Phylogenetic Trees Given Additional Data: An Algorithm Based on Parsimony  

Science Conference Proceedings (OSTI)

Given a set X of taxa, a phylogenetic X-tree T that is only partially resolved, and a collection of characters on X, we consider the problem of finding a resolution (refinement) of T that minimizes the parsimony score of the given characters. Previous ... Keywords: Combinatorial algorithms, Life and Medical Sciences

Taoyang Wu; Vincent Moulton; Mike Steel

2009-01-01T23:59:59.000Z

388

Refinement of weed risk assessments for biofuels using Camelina sativa as a model species  

E-Print Network (OSTI)

Refinement of weed risk assessments for biofuels using Camelina sativa as a model species Philip B and Environmental Sciences, Montana State University, PO Box 173120, Bozeman, MT 59717-3120, USA Summary 1. Biofuel. However, concerns have been raised on the invasiveness of biofuel feedstocks. Estimating invasion

Peterson, Robert K. D.

389

Further Studies of Mesh Refinement: Are Shock-Free Airfoils Truly Shock Free?  

E-Print Network (OSTI)

Further Studies of Mesh Refinement: Are Shock-Free Airfoils Truly Shock Free? Antony Jameson with a hodograph method to be shock-free at M = 0.750 and Cl = 0.629. However, computational fluid dynamics results show a double-shock pattern appear at this design point as the resolution of the grid is enhanced

Stanford University

390

Use of geothermal heat for sugar refining. Final report, October 1, 1976--May 31, 1977  

DOE Green Energy (OSTI)

The economic and technical feasibility of applying low grade geothermal heat (less than 300/sup 0/F) in the beet sugar refining industry for both new factory construction and retrofit conversion of existing factories was assessed. The representative Holly Sugar factory at Brawley, California, was utilized as a baseline primarily because of its centralized location with respect to the known and partially developed geothermal anomalies at Brawley, East Mesa, and Heber. Nominal values for the key parameters of the sugar refining process and typical values for the geothermal fluid parameters representative of geothermal resources in areas of existing or potential future sugar factories were defined, promising points of application were identified, and conceptual designs synthesized for introducing the geothermal heat into the process. The design approaches were then quantified with capital, operating and maintenance costs, and comparative economic evaluations were made with other fuels projected to 1995. In parallel with the detailed study of process conversion to geothermal heat, the existing pattern and potential growth of the sugar refining industry was assessed to estimate the potential market for new factory construction at suitable areas, as well as the potential for retrofit conversion of existing factories. The environmental impact of other geothermal application concepts was also assessed, and expected technological or industry/government policy changes which might affect the potential for conversion to geothermal heat were identified and evaluated. Emphasis was placed on achieving results that would stimulate commercial utilization of geothermal heat for beet sugar refining and related processes.

Pearson, R.O.

1977-05-01T23:59:59.000Z

391

Rocky Mountain area petroleum product availability with reduced PADD IV refining capacity  

Science Conference Proceedings (OSTI)

Studies of Rocky Mountain area petroleum product availability with reduced refining capacity in Petroleum Administration for Defense IV (PADD IV, part of the Rocky Mountain area) have been performed with the Oak Ridge National Laboratory Refinery Yield Model, a linear program which has been updated to blend gasolines to satisfy constraints on emissions of nitrogen oxides and winter toxic air pollutants. The studies do not predict refinery closures in PADD IV. Rather, the reduced refining capacities provide an analytical framework for probing the flexibility of petroleum refining and distribution for winter demand conditions in the year 2000. Industry analysts have estimated that, for worst case scenarios, 20 to 35 percent of PADD IV refining capacity could be shut-down as a result of clean air and energy tax legislation. Given these industry projections, the study scenarios provide the following conclusions: The Rocky Mountain area petroleum system would have the capability to satisfy winter product demand with PADD IV refinery capacity shut-downs in the middle of the range of industry projections, but not in the high end of the range of projections. PADD IV crude oil production can be maintained by re-routing crude released from PADD IV refinery demands to satisfy increased crude oil demands in PADDs II (Midwest), III (Gulf Coast), and Washington. Clean Air Act product quality regulations generally do not increase the difficulty of satisfying emissions reduction constraints in the scenarios.

Hadder, G.R.; Chin, S.M.

1994-02-01T23:59:59.000Z

392

Evaluation of ASD Systems for Electric Arc Furnace and Argon Oxygen Decarburization Refiner Baghouse Fans  

Science Conference Proceedings (OSTI)

An adjustable speed drive (ASD) offers opportunities to operate dust collection fans in a more energy efficient manner. This report focuses on the system requirements and provides a method for successfully applying ASDs to dust extraction baghouse systems in a steel melting and refining application in order to realize full energy savings and operational improvements.

1998-01-23T23:59:59.000Z

393

Environmental Regulations and Changes in Petroleum Refining Operations (Released in the STEO June 1998)  

Reports and Publications (EIA)

Changes in domestic refining operations are identified and related to the summer Reid vapor pressure (RVP) restrictions and oxygenate blending requirements. This analysis uses published EIA survey data and linear regression equations from the Short-Term Integrated Forecasting System (STIFS). The STIFS model is used for producing forecasts appearing in the Short-Term Energy Outlook.

Information Center

1998-06-01T23:59:59.000Z

394

Simulation and Optimization of the Stabilizer Tower Operation at Catalytic Reforming of Esfahan Oil Refining Company  

Science Conference Proceedings (OSTI)

Production of gasoline with low RVP specifications have made the operators of the catalytic reforming unit of Esfahan Oil refining company in Iran to apply new operating conditions. RVP is an abbreviation for Reid Vapor Pressure which is the vapor pressure ... Keywords: RVP, platformate, initial boiling point, catalytic reforming, distillation curve

Ali Izadyar; Bahram Hashemi Shahraki; Ahmad Shariati

2010-01-01T23:59:59.000Z

395

Nyquist-Shannon sampling theorem applied to refinements of the atomic pair distribution function  

Science Conference Proceedings (OSTI)

We have systematically studied the optimal real-space sampling of atomic pair distribution (PDF) data by comparing refinement results from oversampled and resampled data. Based on nickel and a complex perovskite system, we show that not only is the optimal sampling bounded by the Nyquist interval described by the Nyquist-Shannon (NS) sampling theorem as expected, but near this sampling interval, the data points in the PDF are minimally correlated, which results in more reliable uncertainty estimates in the modeling. Surprisingly, we find that PDF refinements quickly become unstable for data on coarser grids. Although the Nyquist-Shannon sampling theorem is well known, it has not been applied to PDF refinements, despite the growing popularity of the PDF method and its adoption in a growing number of communities. Here, we give explicit expressions for the application of NS sampling theorem to the PDF case, and establish through modeling that it is working in practice, which lays the groundwork for this to become more widely adopted. This has implications for the speed and complexity of possible refinements that can be carried out many times faster than currently with no loss of information, and it establishes a theoretically sound limit on the amount of information contained in the PDF that will prevent over-parametrization during modeling.

Farrow, Christopher L.; Shaw, Margaret; Kim, Hyunjeong; Juhás, Pavol; Billinge, Simon J.L. (NIAIST); (Columbia); (Princeton)

2011-12-07T23:59:59.000Z

396

Computation of Hierarchical Transition Systems to Document Refined Event-B Models  

E-Print Network (OSTI)

the specification. More recently, some participants of the POS�7 project have proposed to used GénéSyst to manage from the abstract representa- tion, while substates are introduced to precise some refined behavioursBuffer > 0. Moreover, the use of hier- archy allows to structure the diagram by choosing initial- substates

Paris-Sud XI, Université de

397

Table 46. Refiner No. 2 Distillate, Diesel Fuel, and Fuel Oil...  

Annual Energy Outlook 2012 (EIA)

342.8 W W 123.0 412.7 W 839.2 135.0 1,251.9 See footnotes at end of table. 46. Refiner No. 2 Distillate, Diesel Fuel, and Fuel Oil Volumes by PAD District and State Energy...

398

Table 47. Refiner Residual Fuel Oil and No. 4 Fuel Volumes by...  

Gasoline and Diesel Fuel Update (EIA)

2,393.2 702.7 3,804.5 3,037.5 W 134.0 See footnotes at end of table. 47. Refiner Residual Fuel Oil and No. 4 Fuel Volumes by PAD District 352 Energy Information Administration ...

399

Table 46. Refiner No. 2 Distillate, Diesel Fuel, and Fuel Oil...  

Gasoline and Diesel Fuel Update (EIA)

116.7 W W W W 379.0 W 1,039.3 132.9 1,418.3 See footnotes at end of table. 46. Refiner No. 2 Distillate, Diesel Fuel, and Fuel Oil Volumes by PAD District and State Energy...

400

Visualization of Time-Dependent Remote Adaptive Mesh Refinement Data Ralf Kaehler  

E-Print Network (OSTI)

addressed the problem of visualizing remote, time- dependent data defined on AMR grids. In order to handle as the network is fast enough and local resources are capable of handling the data, we believe that using remoteVisualization of Time-Dependent Remote Adaptive Mesh Refinement Data Ralf Kaehler Zuse

Andrzejak, Artur

Note: This page contains sample records for the topic "higher refining margins" 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

How Responsive is Higher Education? The Linkages between Higher Education and the Labor Market  

E-Print Network (OSTI)

establishment (at the higher education level). Our analysisEconomic Value of Higher Education in Developed Economies: AWeiss. 2008. “From Higher Education to Work: Patterns of

Bardhan, Ashok Deo; Hicks, Daniel; Jaffee, Dwight M.

2010-01-01T23:59:59.000Z

402

Effect of post-implant edema on prostate brachytherapy treatment margins  

SciTech Connect

Purpose: To determine if postimplant prostate brachytherapy treatment margins calculated on Day 0 differ substantially from those calculated on Day 30. Methods: Thirty patients with 1997 American Joint Commission on Cancer clinical stage T1-T2 prostatic carcinoma underwent prostate brachytherapy with I-125 prescribed to 144 Gy. Treatment planning methods included using loose seeds in a modified peripheral loading pattern and treatment margins (TMs) of 5-8 mm. Postimplant plain radiographs, computed tomography scans, and magnetic resonance scans were obtained 1-4 hours after implantation (Day 0). A second set of imaging studies was obtained at 30 days after implantation (Day 30) and similarly analyzed. Treatment margins were measured as the radial distance in millimeters from the prostate edge to the 100% isodose line. The TMs were measured and tabulated at 90{sup o} intervals around the prostate periphery at 0.6-cm intervals. Each direction was averaged to obtain the mean anterior, posterior, left, and right margins. Results: The mean overall TM increased from 2.6 mm ({+-}2.3) on Day 0 to 3.5 mm ({+-}2.4) on Day 30. The mean anterior margin increased from 1.2 mm on Day 0 to 1.8 mm on Day 30. The posterior margin increased from 1.2 mm on Day 0 to 2.8 mm on Day 30. The lateral treatment margins increased most over time, with mean right treatment margin increasing from 3.9 mm on Day 0 to 4.7 mm on Day 30. Conclusion: Treatment margins appear to be durable in the postimplant period, with a clinically insignificant increase from Day 0 to Day 30.

Reed, Daniel R. [Radiation Oncology, Arizona Oncology Services, Phoenix, AZ (United States); Department of Radiation Oncology, Puget Sound Health Care System, Department of Veterans Affairs, Seattle, WA (United States); Department of Radiation Oncology, University of Washington, Seattle, WA (United States); Wallner, Kent [Department of Radiation Oncology, Puget Sound Health Care System, Department of Veterans Affairs, Seattle, WA (United States); Department of Radiation Oncology, University of Washington, Seattle, WA (United States); Radiation Oncology, Group Health Cooperative, Seattle, WA (United States); Ford, Eric [Department of Radiation Oncology, University of Washington, Seattle, WA (United States); Mueller, Amy [Department of Radiation Oncology, Puget Sound Health Care System, Department of Veterans Affairs, Seattle, WA (United States); Merrick, Gregory [Schiffler Cancer Center, Wheeling, WV (United States); Maki, Jeffrey [Department of Diagnostic Radiology, Puget Sound Health Care System, Department of Veterans Affairs, Seattle, WA (United States); Sutlief, Steven [Department of Radiation Oncology, Puget Sound Health Care System, Department of Veterans Affairs, Seattle, WA (United States); Department of Radiation Oncology, University of Washington, Seattle, WA (United States); Butler, Wayne [Schiffler Cancer Center, Wheeling, WV (United States)

2005-12-01T23:59:59.000Z

403

REFINEMENT OF THE NEPHELINE DISCRIMINATOR: RESULTS OF A PHASE I STUDY  

SciTech Connect

The performance of a glass used for immobilization of high-level nuclear waste (HLW) is generally quantified by its resistance to chemical degradation, or durability. The durability of a HLW glass is dependent on its composition. If crystalline phases form within a glass during cooling, the composition of the residual glass network is altered, therefore affecting the durability of the glass. Crystallization of nepheline (NaAlSiO{sub 4}) has been shown to adversely impact the durability of HLW glasses since it removes glass forming species (in this case, Al and Si) from the glass network. The propensity for nepheline crystallization in a HLW glass increases with increasing concentrations of Al{sub 2}O{sub 3} and Na{sub 2}O in the glass. Nepheline crystallization is therefore of concern for processing of HLW at the Defense Waste Processing Facility (DWPF) since the sludge waste streams at the Savannah River Site (SRS) can contain high concentrations of Al{sub 2}O{sub 3} and Na{sub 2}O. Currently, a 'nepheline discriminator' is included as a process control constraint at the DWPF. The nepheline discriminator relates the concentrations of SiO{sub 2}, Na{sub 2}O and Al{sub 2}O{sub 3} (as weight percentages in glass) to a critical value of 0.62. The discriminator defines a boundary line on the SiO{sub 2}-Na{sub 2}O-Al{sub 2}O{sub 3} ternary diagram above which (or toward the SiO{sub 2} corner of the ternary) nepheline is not predicted to crystallize in the glass upon quenching or slow cooling. The current equation uses only the concentrations of the SiO{sub 2}, Na{sub 2}O and Al{sub 2}O{sub 3} components in the glass in predicting whether or not nepheline is likely to crystallize. However, several other components have been shown to impact the propensity for nepheline crystallization, including B{sub 2}O{sub 3} and CaO among others. Therefore, the potential exists to further refine the nepheline discriminator to include these components. In addition, recently studied HLW glasses with relatively high Al{sub 2}O{sub 3} compositions of 25 wt % or greater and nepheline discriminator values well below 0.62 have been shown to be free of nepheline crystallization upon quenching and slow cooling. Thus, the current nepheline discriminator equation also appears to be conservative for some HLW glass compositions. Refining the nepheline discriminator to include other important components and to reduce conservatism may provide access to high Al{sub 2}O{sub 3} concentration glass compositions for the DWPF, which could in turn allow access to higher waste loadings, decreased washing and improved waste throughput. The objective of this study was to develop and characterize a series of HLW glass compositions based on a projected composition of Sludge Batch 5 (SB5), the next sludge batch to be processed in the DWPF. The selected glass compositions all had nepheline discriminator values below the current limit of 0.62. They cover a range of locations on the SiO{sub 2}-Na{sub 2}O-Al{sub 2}O{sub 3} diagram. They also include varying amounts of B{sub 2}O{sub 3} and CaO to support an evaluation of the impact of these components on the propensity for nepheline crystallization. The results described in this report confirm that some conservatism exists in the current nepheline discriminator. Several glass compositions, particularly compositions that target higher Al{sub 2}O{sub 3} concentrations, were shown to be very durable (i.e., PCT responses that were more than an order of magnitude better than that of the Environmental Assessment benchmark glass) while their nepheline discriminator values were well below the current nepheline discriminator limit of 0.62. Increased concentrations of B{sub 2}O{sub 3} and increased concentrations of CaO were shown to improve durability responses and suppress the formation of nepheline. This provides incentive to revise the nepheline discriminator to reduce some of this conservatism and incorporate the influence of B{sub 2}O{sub 3}. The revised nepheline discriminator could potentially change from a constant line on

Fox, K; James Newell, J; Tommy Edwards, T; David Best, D; Irene Reamer, I; Phyllis Workman, P

2008-02-13T23:59:59.000Z

404

REFINEMENT OF THE NEPHELINE DISCRIMINATOR: RESULTS OF A PHASE I STUDY  

Science Conference Proceedings (OSTI)

The performance of a glass used for immobilization of high-level nuclear waste (HLW) is generally quantified by its resistance to chemical degradation, or durability. The durability of a HLW glass is dependent on its composition. If crystalline phases form within a glass during cooling, the composition of the residual glass network is altered, therefore affecting the durability of the glass. Crystallization of nepheline (NaAlSiO{sub 4}) has been shown to adversely impact the durability of HLW glasses since it removes glass forming species (in this case, Al and Si) from the glass network. The propensity for nepheline crystallization in a HLW glass increases with increasing concentrations of Al{sub 2}O{sub 3} and Na{sub 2}O in the glass. Nepheline crystallization is therefore of concern for processing of HLW at the Defense Waste Processing Facility (DWPF) since the sludge waste streams at the Savannah River Site (SRS) can contain high concentrations of Al{sub 2}O{sub 3} and Na{sub 2}O. Currently, a 'nepheline discriminator' is included as a process control constraint at the DWPF. The nepheline discriminator relates the concentrations of SiO{sub 2}, Na{sub 2}O and Al{sub 2}O{sub 3} (as weight percentages in glass) to a critical value of 0.62. The discriminator defines a boundary line on the SiO{sub 2}-Na{sub 2}O-Al{sub 2}O{sub 3} ternary diagram above which (or toward the SiO{sub 2} corner of the ternary) nepheline is not predicted to crystallize in the glass upon quenching or slow cooling. The current equation uses only the concentrations of the SiO{sub 2}, Na{sub 2}O and Al{sub 2}O{sub 3} components in the glass in predicting whether or not nepheline is likely to crystallize. However, several other components have been shown to impact the propensity for nepheline crystallization, including B{sub 2}O{sub 3} and CaO among others. Therefore, the potential exists to further refine the nepheline discriminator to include these components. In addition, recently studied HLW glasses with relatively high Al{sub 2}O{sub 3} compositions of 25 wt % or greater and nepheline discriminator values well below 0.62 have been shown to be free of nepheline crystallization upon quenching and slow cooling. Thus, the current nepheline discriminator equation also appears to be conservative for some HLW glass compositions. Refining the nepheline discriminator to include other important components and to reduce conservatism may provide access to high Al{sub 2}O{sub 3} concentration glass compositions for the DWPF, which could in turn allow access to higher waste loadings, decreased washing and improved waste throughput. The objective of this study was to develop and characterize a series of HLW glass compositions based on a projected composition of Sludge Batch 5 (SB5), the next sludge batch to be processed in the DWPF. The selected glass compositions all had nepheline discriminator values below the current limit of 0.62. They cover a range of locations on the SiO{sub 2}-Na{sub 2}O-Al{sub 2}O{sub 3} diagram. They also include varying amounts of B{sub 2}O{sub 3} and CaO to support an evaluation of the impact of these components on the propensity for nepheline crystallization. The results described in this report confirm that some conservatism exists in the current nepheline discriminator. Several glass compositions, particularly compositions that target higher Al{sub 2}O{sub 3} concentrations, were shown to be very durable (i.e., PCT responses that were more than an order of magnitude better than that of the Environmental Assessment benchmark glass) while their nepheline discriminator values were well below the current nepheline discriminator limit of 0.62. Increased concentrations of B{sub 2}O{sub 3} and increased concentrations of CaO were shown to improve durability responses and suppress the formation of nepheline. This provides incentive to revise the nepheline discriminator to reduce some of this conservatism and incorporate the influence of B{sub 2}O{sub 3}. The revised nepheline discriminator could potentially change from a constant line on

Fox, K; James Newell, J; Tommy Edwards, T; David Best, D; Irene Reamer, I; Phyllis Workman, P

2008-02-13T23:59:59.000Z

405

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

E-Print Network (OSTI)

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

Levin, Lisa

406

Bayesian inference through encompassing priors and importance sampling for a class of marginal models for categorical data  

E-Print Network (OSTI)

We develop a Bayesian approach for selecting the model which is the most supported by the data within a class of marginal models for categorical variables formulated through equality and/or inequality constraints on generalised logits (local, global, continuation or reverse continuation), generalised log-odds ratios and similar higher-order interactions. For each constrained model, the prior distribution of the model parameters is formulated following the encompassing prior approach. Then, model selection is performed by using Bayes factors which are estimated by an importance sampling method. The approach is illustrated through three applications involving some datasets, which also include explanatory variables. In connection with one of these examples, a sensitivity analysis to the prior specification is also considered.

Bartolucci, Francesco; Farcomeni, Alessio

2012-01-01T23:59:59.000Z

407

Oxygen and organic matter thresholds for benthic faunal activity on the Pakistan margin oxygen minimum zone (7001100 m)  

E-Print Network (OSTI)

Oxygen and organic matter thresholds for benthic faunal activity on the Pakistan margin oxygen) on the bathyal Pakistan margin, where sediments grade from fully laminated sediment at 700 m (0.12 mL LÃ?1 O2 [5 m matter to generate abrupt faunal transitions on the Pakistan margin. & 2008 Elsevier Ltd. All rights

Levin, Lisa

408

Worldwide refining  

Science Conference Proceedings (OSTI)

The paper presents compiled data on operating refineries worldwide by country and by company within these countries. Data are presented on charge capacity for the following processes: vacuum distillation, thermal operations, catalytic cracking, catalytic reforming, cat-hydrocracking, cat hydrorefining, and cat hydrotreating. Data are also presented on the production capacity for the following products: alkylates and polymers, aromatics and isomers, lubricating oils, asphalt, hydrogen, and coke.

Bell, L.

1993-12-20T23:59:59.000Z

409

Worldwide refining  

Science Conference Proceedings (OSTI)

The paper consists of several tables compiling data on refinery capacities by country, by state, and by company. The capacity data are given by process as well as by final product. Processes include vacuum distillation, thermal operations, catalytic cracking, catalytic reforming, catalytic hydrocracking, catalytic hydrorefining, and catalytic hydrotreating. Products include alkylates, polymers, and dimers; aromatics and isomers; oxygenates; hydrogen; asphalts; and coke.

Williamson, M.

1994-12-19T23:59:59.000Z

410

A Physical Model For The Origin Of Volcanism Of The Tyrrhenian Margin- The  

Open Energy Info (EERE)

Model For The Origin Of Volcanism Of The Tyrrhenian Margin- The Model For The Origin Of Volcanism Of The Tyrrhenian Margin- The Case Of Neapolitan Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Physical Model For The Origin Of Volcanism Of The Tyrrhenian Margin- The Case Of Neapolitan Area Details Activities (0) Areas (0) Regions (0) Abstract: The onset of volcanism in the Neapolitan area and the tensile tectonics of the Tyrrhenian margin of the Apennine chain have been related to the opening of the Tyrrhenian Basin, which may have resulted in horizontal asthenosphere flows giving rise, in turn, to crustal distension, local mantle upwellings and ensuing volcanism. Geological and structural data were taken into consideration: the existence of a shallow crust-mantle discontinuity in the Neapolitan area, the onset of volcanism in a

411

An Inverse Method for Tracking Ice Motion in the Marginal Ice Zone Using Sequential Satellite Images  

Science Conference Proceedings (OSTI)

A new method for tracking ice motion and estimating ocean surface currents from sequential satellite images is presented. It is particularly suited for the marginal ice zone. A simple ice advection model, driven by wind and surface currents, is ...

Mark Buehner; Keith R. Thompson; Ingrid Peterson

1997-12-01T23:59:59.000Z

412

Quasi-Geostrophic Topographically Generated Mean Flow over the Continental Margin  

Science Conference Proceedings (OSTI)

Observations of oppositely directed, monthly mean alongshore currents and wind stress over the continental margin off the Pacific coast of North America motivate the theoretical examination of mean flow generation by topographic lee-wave drag. We ...

Roger M. Samelson; J. S. Allen

1987-11-01T23:59:59.000Z

413

A Comparison of Radiation Budgets in the Fram Strait Summer Marginal Ice Zone  

Science Conference Proceedings (OSTI)

Measurements of surface radiation fluxes and meteorological conditions collected in the Fram Strait during the summer 1984 Marginal Ice Zone Experiment (MIZEX) are presented and analyzed. These data were combined with calculations from a ...

Jennifer A. Francis; Thomas P. Ackerman; Kristina B. Katsaros; Richard J. Lind; Kenneth L. Davidson

1991-02-01T23:59:59.000Z

414

Quantifying the margin sharpness of lesions on radiological images for content-based image retrieval  

Science Conference Proceedings (OSTI)

Purpose: To develop a method to quantify the margin sharpness of lesions on CT and to evaluate it in simulations and CT scans of liver and lung lesions. Methods: The authors computed two attributes of margin sharpness: the intensity difference between a lesion and its surroundings, and the sharpness of the intensity transition across the lesion boundary. These two attributes were extracted from sigmoid curves fitted along lines automatically drawn orthogonal to the lesion margin. The authors then represented the margin characteristics for each lesion by a feature vector containing histograms of these parameters. The authors created 100 simulated CT scans of lesions over a range of intensity difference and margin sharpness, and used the concordance correlation between the known parameter and the corresponding computed feature as a measure of performance. The authors also evaluated their method in 79 liver lesions (44 patients: 23 M, 21 F, mean age 61) and 58 lung nodules (57 patients: 24 M, 33 F, mean age 66). The methodology presented takes into consideration the boundary of the liver and lung during feature extraction in clinical images to ensure that the margin feature do not get contaminated by anatomy other than the normal organ surrounding the lesions. For evaluation in these clinical images, the authors created subjective independent reference standards for pairwise margin sharpness similarity in the liver and lung cohorts, and compared rank orderings of similarity used using our sharpness feature to that expected from the reference standards using mean normalized discounted cumulative gain (NDCG) over all query images. In addition, the authors compared their proposed feature with two existing techniques for lesion margin characterization using the simulated and clinical datasets. The authors also evaluated the robustness of their features against variations in delineation of the lesion margin by simulating five types of deformations of the lesion margin. Equivalence across deformations was assessed using Schuirmann's paired two one-sided tests. Results: In simulated images, the concordance correlation between measured gradient and actual gradient was 0.994. The mean (s.d.) and standard deviation NDCG score for the retrieval of K images, K = 5, 10, and 15, were 84% (8%), 85% (7%), and 85% (7%) for CT images containing liver lesions, and 82% (7%), 84% (6%), and 85% (4%) for CT images containing lung nodules, respectively. The authors' proposed method outperformed the two existing margin characterization methods in average NDCG scores over all K, by 1.5% and 3% in datasets containing liver lesion, and 4.5% and 5% in datasets containing lung nodules. Equivalence testing showed that the authors' feature is more robust across all margin deformations (p < 0.05) than the two existing methods for margin sharpness characterization in both simulated and clinical datasets. Conclusions: The authors have described a new image feature to quantify the margin sharpness of lesions. It has strong correlation with known margin sharpness in simulated images and in clinical CT images containing liver lesions and lung nodules. This image feature has excellent performance for retrieving images with similar margin characteristics, suggesting potential utility, in conjunction with other lesion features, for content-based image retrieval applications.

Xu Jiajing; Napel, Sandy; Greenspan, Hayit; Beaulieu, Christopher F.; Agrawal, Neeraj; Rubin, Daniel [Department of Electrical Engineering, Stanford University, Stanford, California 94305 (United States); Department of Radiology, Stanford University, Stanford, California 94305 (United States); Department of Biomedical Engineering, Tel Aviv University, Tel Aviv 69978 (Israel); Department of Radiology, Stanford University, Stanford, California 94305 (United States); Department of Computer Science, Stanford University, Stanford, California 94305 (United States); Department of Radiology, Stanford University, Stanford, California 94305 (United States)

2012-09-15T23:59:59.000Z

415

Storytelling on the margins : a theoretical framework for imagining a fashion innovation center in Tuscany  

E-Print Network (OSTI)

The importance of the margin has long been deemed important in creative processes. At both the level of the individual and the level of the city, research shows that creativity tends to flourish on the philosophical and ...

Mills, Alexa (Alexa Timeaus)

2008-01-01T23:59:59.000Z

416

A Quadratic Loss Multi-Class SVM for which a Radius-Margin Bound Applies  

Science Conference Proceedings (OSTI)

To set the values of the hyperparameters of a support vector machine (SVM), the method of choice is cross-validation. Several upper bounds on the leave-one-out error of the pattern recognition SVM have been derived. One of the most popular is the radius-margin ... Keywords: leave-one-out cross-validation error, model selection, multi-class SVMs, radius-margin bounds

Yann Guermeur; Emmanuel Monfrini

2011-01-01T23:59:59.000Z

417

The Fundamentals of Locational Marginal Pricing (LMP): Examples of Pricing Outcomes on the PJM System  

Science Conference Proceedings (OSTI)

As power industry restructuring continues, more and more industry participants will be exposed to financial uncertainties created by locational marginal pricing. These uncertainties differ from those experienced under traditional regulation as well as from the resource adequacy-related price spikes experienced in the Midwest in 1998 and in the West during 2000-2001. Instead, locational marginal pricing systems create uncertainty in the cost of transporting power from resources to loads. This report will ...

2003-12-15T23:59:59.000Z

418

Higher Power Energy LLC | Open Energy Information  

Open Energy Info (EERE)

Higher Power Energy LLC Higher Power Energy LLC Jump to: navigation, search Name Higher Power Energy, LLC Place Flower Mound, Texas Zip 78028 Sector Renewable Energy, Wind energy Product Higher Power Energy is focused on the development and management of renewable wind energy across North America. References Higher Power Energy, LLC[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Higher Power Energy, LLC is a company located in Flower Mound, Texas . References ↑ "Higher Power Energy, LLC" Retrieved from "http://en.openei.org/w/index.php?title=Higher_Power_Energy_LLC&oldid=346535" Categories: Clean Energy Organizations Companies Organizations Stubs What links here

419

An Enhanced In-Vessel Core Catcher for Improving In-Vessel Retention Margins  

SciTech Connect

In-vessel retention (IVR) of core melt that may relocate to the lower head of a reactor vessel is a key severe accident management strategy adopted by some operating nuclear power plants and proposed for several advanced light water reactors. A U.S.-Korean International Nuclear Energy Research Initiative project has been initiated to explore design enhancements that could increase the margin for IVR for advanced reactors with higher power levels [up to 1500 MW(electric)]. As part of this effort, an enhanced in-vessel core catcher is being designed and evaluated. To reduce cost and simplify manufacture and installation, this new core catcher design consists of several interlocking sections that are machined to fit together when inserted into the lower head. If needed, the core catcher can be manufactured with holes to accommodate lower head penetrations. Each section of the core catcher consists of two material layers with an option to add a third layer (if deemed necessary). The first is a base material that has the capability to support and contain the mass of core materials that may relocate during a severe accident; the second is an oxide coating on top of the base material, which resists interactions with high-temperature core materials; and the third is an optional coating on the bottom side of the base material to protect it from oxidation during the lifetime of the reactor. This paper summarizes results from the invessel core catcher design and evaluation efforts, focusing on recently obtained results from materials interaction tests and prototypic testing activities.

Joy L. Rempe

2005-11-01T23:59:59.000Z

420

Development of an Enhanced Core Catcher for Improving In-Vessel Retention Margins  

Science Conference Proceedings (OSTI)

In-vessel retention (IVR) of core melt that may relocate to the lower head of a reactor vessel is a key severe accident management strategy adopted by some operating nuclear power plants and proposed for several advanced light water reactors. A U.S.-Korean International Nuclear Energy Research Initiative project has been initiated to explore design enhancements that could increase the margin for IVR for advanced reactors with higher power levels [up to 1500 MW(electric)]. As part of this effort, an enhanced in-vessel core catcher is being designed and evaluated. To reduce cost and simplify manufacture and installation, this new core catcher design consists of several interlocking sections that are machined to fit together when inserted into the lower head. If needed, the core catcher can be manufactured with holes to accommodate lower head penetrations. Each section of the core catcher consists of two material layers with an option to add a third layer (if deemed necessary). The first is a base material that has the capability to support and contain the mass of core materials that may relocate during a severe accident; the second is an oxide coating on top of the base material, which resists interactions with high-temperature core materials; and the third is an optional coating on the bottom side of the base material to protect it from oxidation during the lifetime of the reactor. This paper summarizes results from the in-vessel core catcher design and evaluation efforts, focusing on recently obtained results from materials interaction tests and prototypic testing activities.

Rempe, J.L. [Idaho National Engineering and Environmental Laboratory (United States); Condie, K.G. [Idaho National Engineering and Environmental Laboratory (United States); Knudson, D.L. [Idaho National Engineering and Environmental Laboratory (United States); Suh, K.Y. [Seoul National University (Korea, Republic of); Cheung, F.B. [The Pennsylvania State University (United States); Kim, S.B. [Korea Atomic Energy Research Institute (Korea, Republic of)

2005-11-15T23:59:59.000Z

Note: This page contains sample records for the topic "higher refining margins" 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

Feedstocks with Reduced Acetylation for Higher Product ...  

Biomass and Biofuels Feedstocks with Reduced Acetylation for Higher Product Yields and Improved Properties Lawrence Berkeley National Laboratory.

422

Higher order invariants, cohomology, and automorphic forms  

E-Print Network (OSTI)

A general structure theorem on higher order invariants is proven. For an arithmetic group, the structure of the corresponding Hecke module is determined. It is shown that the module does not contain any irreducible submodule. This explains the fact that L-functions of higher order forms have no Euler-product. Higher order cohomology is introduced, classical results of Borel are generalized and a higher order version of Borel's conjecture is stated.

Deitmar, Anton

2008-01-01T23:59:59.000Z

423

The effects of air pollution regulations on the US refining industry. Task 3  

SciTech Connect

Numerous air pollution regulations affecting petroleum refineries recently have been promulgated, have been proposed, or are under consideration at the federal, state, and local level. As shown in Figure ES-1, all of these environmental regulations are intended to take effect over the relatively short time period from 1989 through 1995. In the aggregate these regulatory activities have significant implications for the US refining industry and the Nation, including: Major investment requirements; changes in industry profitability; potential closure of some refineries; and potential changes in crude oil or product import dependence. At issue is whether the cumulative effect of these regulations could so adversely affect the US refining industry that US national security would be affected. In addition to the regulations outlined in Figure ES-1, President Bush recently presented a major new plan to improve the nation`s air quality. The aspects of the President`s plan that could strongly affect US refineries are summarized below.

Not Available

1989-06-01T23:59:59.000Z

424

Adaptive Multiresolution or Adaptive Mesh Refinement? A Case Study for 2D Euler Equations  

SciTech Connect

We present adaptive multiresolution (MR) computations of the two-dimensional compressible Euler equations for a classical Riemann problem. The results are then compared with respect to accuracy and computational efficiency, in terms of CPU time and memory requirements, with the corresponding finite volume scheme on a regular grid. For the same test-case, we also perform computations using adaptive mesh refinement (AMR) imposing similar accuracy requirements. The results thus obtained are compared in terms of computational overhead and compression of the computational grid, using in addition either local or global time stepping strategies. We preliminarily conclude that the multiresolution techniques yield improved memory compression and gain in CPU time with respect to the adaptive mesh refinement method.

Deiterding, Ralf [ORNL; Domingues, Margarete O. [Laboratorio Associado de Computacao e Matematica Aplicada (LAC), Sao Paulo; Gomes, Sonia M. [Universidade Estadual de Campinas, Sao Paulo; Roussel, Olivier [Universite d'Aix-Marseille; Schneider, Kai [Universite d'Aix-Marseille

2009-01-01T23:59:59.000Z

425

T.: A Financial Management Consultation Expert System with Constraint Satisfaction and Knowledge Refinement. The Third  

E-Print Network (OSTI)

This paper describes an expert system that integrates different sorts of expertise for financial management consultation: the quantitative-qualitative financial indices, their relationship equations and the enterprise management policies represented by knowledge production rules. The innovative idea is that it incorporates the Constraint Satisfaction Paradigm (CSP) and the Best-first Search (BFS) techniques to guide the task, whichevaluates the financial 'health ' condition of a company in a routine way, mirroring the processes of a certified public accountant, in order to determine which management policies are the best to be applied. The expert system performs a set of numerical simulations that incorporate the aspects of Knowledge Refinement and Qualitative Simulation under company cases, applying series of refinement strategies for the parameters of the financial knowledge base and the heuristic searching control functions. The integrated inference engine performance and efficiency with the heuristic functions selected to enforce the convergence of the problem solvers combined are depicted. Topics: AI applications, Learning and knowledge acquisition.

Pedro García del Valle y Durán; Takahira Yamaguchi

1994-01-01T23:59:59.000Z

426

A case study: Residue reduction at Deer Park Refining Limited Partnership  

SciTech Connect

With input from Shell Synthetic Fuels Inc. (SSFI), Deer Park Refining Limited Partnership (DPRLP) analyzed options for managing the bottom of the barrel to extinction, with an objective of high return on investment. DPRLP is a joint venture of PEMEX and Shell Oil Company. This Gulf Coast refiner processes 227M BBL/D of heavy, high sulfur crude. This paper discusses the process options considered, their advantages and disadvantages, and the option selected as well as the options still open. Recent modernization projects at DPRLP are now on stream with high yield of clean products.There remains one by-product, petroleum coke, which presents opportunity as a low cost feed for one or more process options yielding attractive products. The Shell Coke (or Coal) Gasification Process is one of the options now being considered.

Geehan, D.M. [Shell Synthetic Fuels Inc., Houston, TX (United States)

1996-12-01T23:59:59.000Z

427

Reductions in Northeast Refining Activity: Potential Implications for Petroleum Product Markets  

Gasoline and Diesel Fuel Update (EIA)

Reductions in Northeast Reductions in Northeast Refining Activity: Potential Implications for Petroleum Product Markets December 2011 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Reductions in Northeast Refining Activity: Potential Implications for Petroleum Product Markets i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the U.S. Department of Energy

428

Table 1A","Refiner Acquisition Cost of Crude Oil by PAD District (Domestic  

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

A","Refiner Acquisition Cost of Crude Oil by PAD District (Domestic)" A","Refiner Acquisition Cost of Crude Oil by PAD District (Domestic)" ,"(Dollars per Barrel)" ,,," "," " ,,,"Previous ","Final" "Frequency","Date","Area","Price","Price","Difference" "Annual",2010,"PAD District 2",78.7,78.85,0.15 ,,"PAD District 4",73.65,73.56,-0.09 ,,"U.S.",77.96,78.01,0.05 ,2011,"PAD District 3",103.19,103.24,0.05 ,,"PAD District 2",96.82,96.81,-0.01 ,,"PAD District 4",89.36,89.34,-0.02 ,,"U.S.",100.74,100.71,-0.03 ,,"PAD District 5",103.85,103.83,-0.02 "Month","application/vnd.ms-excel","PAD District 4",73.68,72.66,-1.02

429

Designing ontologies for higher level fusion  

Science Conference Proceedings (OSTI)

The purpose of higher level fusion is to produce contextual understanding of the states of the environment and prediction of their impact in relation to specific goals of decision makers. One of the main challenges of designing higher level fusion processes ... Keywords: Basic formal ontology (BFO), Higher level fusion, Mereotopology, Ontology, Postdisaster environment, Relations

Eric G. Little; Galina L. Rogova

2009-01-01T23:59:59.000Z

430

Higher-order symbolic execution via contracts  

Science Conference Proceedings (OSTI)

We present a new approach to automated reasoning about higher-order programs by extending symbolic execution to use behavioral contracts as symbolic values, thus enabling symbolic approximation of higher-order behavior. Our approach is based on the idea ... Keywords: higher-order contracts, reduction semantics, symbolic execution

Sam Tobin-Hochstadt; David Van Horn

2012-11-01T23:59:59.000Z

431

Application of a catalyst deactivation model for hydrotreating solvent refined coal feedstocks  

SciTech Connect

A simple kinetic model, including a first-order catalyst deactivation rate, is applied to upgrading of coal-derived feedstocks prepared from two solvent refined coal fractions. A catalyst deactivation mechanism is proposed which involves the adsorption and surface reaction of coke precursors on catalytic active sites. The effect of feedstock composition, temperature, and pressure on kinetic parameters, and in particular, the catalyst deactivation rate, is determined.

Nalltham, R.V.; Curtis, C.W.; Guin, J.A.; Tarrer, A.R.

1983-10-01T23:59:59.000Z

432

Application of a catalyst deactivation model for hydrotreating solvent refined coal feedstocks  

SciTech Connect

A simple kinetic model, including a first-order catalyst deactivation rate, is applied to upgrading of coal-derived feedstocks prepared from two solvent refined coal fractions. A catalyst deactivation mechanism is proposed which involves the adsorption and surface reaction of coke precursors on catalytic active sites. The effect of feedstock composition, temperature and pressure on kinetic parameters, and in particular the catalyst deactivation rate, is determined.

Nalitham, R.V.

1983-10-01T23:59:59.000Z

433

An adaptive grid refinement strategy for the simulation of negative streamers  

Science Conference Proceedings (OSTI)

The evolution of negative streamers during electric breakdown of a non-attaching gas can be described by a two-fluid model for electrons and positive ions. It consists of continuity equations for the charged particles including drift, diffusion and reaction ... Keywords: 52.25.Aj, 52.35.Mw, 52.65.Kj, 52.80.Mj, Adaptive grid refinements, Elliptic-parabolic system, Finite volumes, Negative streamers, Pulled front

C. Montijn; W. Hundsdorfer; U. Ebert

2006-12-01T23:59:59.000Z

434

Refining structures against reflection rank: An alternative metric for electron crystallography.  

E-Print Network (OSTI)

1Refining structures against reflection rank: An alternative metric for electron crystallography. Alexander S. Eggeman and Paul A. Midgley * Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge, CB2 3QZ... it contains a combination of heavy, medium and light atoms and has a sufficiently complex structure to give a wide range of diffraction intensities and a highly non-monotonic variation of intensity with increasing scattering angle. The material occupies...

Eggeman, Alexander; Migley, Paul

435

Risk Informed Safety Margin Characterization Case Study: Selection of Electrical Equipment To Be Subjected to Environmental Qualification  

SciTech Connect

In general, the margins-based safety case helps the decision-maker manage plant margins most effectively. It tells the plant decision-maker such things as what margin is present (at the plant level, at the functional level, at the barrier level, at the component level), and where margin is thin or perhaps just degrading. If the plant is safe, it tells the decision-maker why the plant is safe and where margin needs to be maintained, and perhaps where the plant can afford to relax.

D. Blanchard; R. Youngblood

2012-04-01T23:59:59.000Z

436

Risk Informed Safety Margin Characterization Case Study: Selection of Electrical Equipment To Be Subjected to Environmental Qualification  

SciTech Connect

In general, the margins-based safety case helps the decision-maker manage plant margins most effectively. It tells the plant decision-maker such things as what margin is present (at the plant level, at the functional level, at the barrier level, at the component level), and where margin is thin or perhaps just degrading. If the plant is safe, it tells the decision-maker why the plant is safe and where margin needs to be maintained, and perhaps where the plant can afford to relax.

R. Youngblood; D. Blanchard

2011-09-01T23:59:59.000Z

437

Generalized structure of higher order nonclassicality  

E-Print Network (OSTI)

A generalized notion of higher order nonclassicality (in terms of higher order moments) is introduced. Under this generalized framework of higher order nonclassicality, conditions of higher order squeezing and higher order subpoissonian photon statistics are derived. A simpler form of the Hong-Mandel higher order squeezing criterion is derived under this framework by using an operator ordering theorem introduced by us in [J. Phys. A. 33 (2000) 5607]. It is also generalized for multi-photon Bose operators of Brandt and Greenberg. Similarly, condition for higher order subpoissonian photon statistics is derived by normal ordering of higher powers of number operator. Further, with the help of simple density matrices, it is shown that the higher order antibunching (HOA) and higher order subpoissonian photon statistics (HOSPS) are not the manifestation of the same phenomenon and consequently it is incorrect to use the condition of HOA as a test of HOSPS. It is also shown that the HOA and HOSPS may exist even in absence of the corresponding lower order phenomenon. Binomial state, nonlinear first order excited squeezed state (NLESS) and nonlinear vacuum squeezed state (NLVSS) are used as examples of quantum state and it is shown that these states may show higher order nonclssical characteristics. It is observed that the Binomial state which is always antibunched, is not always higher order squeezed and NLVSS which shows higher order squeezing does not show HOSPS and HOA. The opposite is observed in NLESS and consequently it is established that the HOSPS and HOS are two independent signatures of higher order nonclassicality

Amit Verma; Anirban Pathak

2009-01-21T23:59:59.000Z

438

Higher Spin Black Holes from CFT  

E-Print Network (OSTI)

Higher spin gravity in three dimensions has explicit black holes solutions, carrying higher spin charge. We compute the free energy of a charged black hole from the holographic dual, a 2d CFT with extended conformal symmetry, and find exact agreement with the bulk thermodynamics. In the CFT, higher spin corrections to the free energy can be calculated at high temperature from correlation functions of W-algebra currents.

Gaberdiel, Matthias R; Jin, Kewang

2012-01-01T23:59:59.000Z

439

Higher Spin Black Holes from CFT  

E-Print Network (OSTI)

Higher spin gravity in three dimensions has explicit black holes solutions, carrying higher spin charge. We compute the free energy of a charged black hole from the holographic dual, a 2d CFT with extended conformal symmetry, and find exact agreement with the bulk thermodynamics. In the CFT, higher spin corrections to the free energy can be calculated at high temperature from correlation functions of W-algebra currents.

Matthias R. Gaberdiel; Thomas Hartman; Kewang Jin

2012-02-29T23:59:59.000Z

440

DOE Connects with Higher Education Community  

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

EDUconnections is a year old project, and through it we celebrate our university partners, spotlighting a different higher education institution every month.

Note: This page contains sample records for the topic "higher refining margins" 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

FCT Education: Competitions for Higher Education Students  

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

& Educators Grades 5-12 Higher Education Energy Education Links Careers in Hydrogen & Fuel Cells Quick Links Hydrogen Production Hydrogen Delivery Hydrogen Storage Fuel Cells...

442

Comparing crowd-based, game-based, and machine-based approaches in initial query and query refinement tasks  

Science Conference Proceedings (OSTI)

Human computation techniques have demonstrated their ability to accomplish portions of tasks that machine-based techniques find difficult. Query refinement is a task that may benefit from human involvement. We conduct an experiment that evaluates the ...

Christopher G. Harris; Padmini Srinivasan

2013-03-01T23:59:59.000Z

443

Palm Oil: Production, Processing, Uses, and CharacterizationChapter 12 Palm Oil and Palm Kernel Oil Refining and Fractionation Technology  

Science Conference Proceedings (OSTI)

Palm Oil: Production, Processing, Uses, and Characterization Chapter 12 Palm Oil and Palm Kernel Oil Refining and Fractionation Technology Food Science Health Nutrition Biochemistry Processing eChapters Food Science & Technology Health

444

Practical Handbook of Soybean Processing and UtilizationChapter 26 Cost Estimates for Soybean Processing and Soybean Oil Refining  

Science Conference Proceedings (OSTI)

Practical Handbook of Soybean Processing and Utilization Chapter 26 Cost Estimates for Soybean Processing and Soybean Oil Refining Processing eChapters Processing AOCS Press Downloadable pdf of Chapter 26 Cost Est

445

A Direct Method for Constructing Refined Regions in Unstructured Conforming Triangular–Hexagonal Computational Grids: Application to OLAM  

Science Conference Proceedings (OSTI)

A scheme is presented for constructing refined regions of 2D unstructured computational meshes composed of triangular cells. The method preserves the conforming property of the original unrefined mesh and does not produce hanging nodes. The ...

Robert L. Walko; Roni Avissar

2011-12-01T23:59:59.000Z

446

Progressive Refinement: A Strategy for the Calibration by Collateral Data of Short-Period Satellite Rainfall Estimates  

Science Conference Proceedings (OSTI)

The progressive refinement approach is a strategy for generating new shorter-term (less than 10 days) satellite rainfall estimation algorithms from structural combinations of an easy-to-calibrate algorithm generating longer- term rainfall totals ...

T. J. Bellerby; E. C. Barrett

1993-08-01T23:59:59.000Z

447

Refinements to SSiB with an Emphasis on Snow Physics: Evaluation and Validation Using GSWP and Valdai Data  

Science Conference Proceedings (OSTI)

Refinements to the snow-physics scheme of the Simplified Simple Biosphere Model (SSiB) are described and evaluated. The upgrades include a partial redesign of the conceptual architecture of snowpack to better simulate the diurnal temperature of ...

David M. Mocko; Y. C. Sud

2001-11-01T23:59:59.000Z

448

Steam System Opportunity Assessment for the Pulp and Paper, Chemical Manufacturing, and Petroleum Refining Industries: Main Report  

Science Conference Proceedings (OSTI)

This report assesses steam generation and use in the pulp and paper, chemical, and petroleum refining industries, and estimates the potential for energy savings from implementation of steam system performance and efficiency improvements.

Not Available

2002-10-01T23:59:59.000Z

449

Using Marginal Lands for Biofuels | U.S. DOE Office of Science (SC)  

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

Using Marginal Lands for Biofuels Using Marginal Lands for Biofuels Biological and Environmental Research (BER) BER Home About Research Facilities Science Highlights Searchable Archive of BER Highlights External link Benefits of BER Funding Opportunities Biological & Environmental Research Advisory Committee (BERAC) News & Resources Contact Information Biological and Environmental Research U.S. Department of Energy SC-23/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3251 F: (301) 903-5051 E: sc.ber@science.doe.gov More Information » January 2013 Using Marginal Lands for Biofuels Assessment shows Midwest could support biomass production while benefiting climate. Print Text Size: A A A Subscribe FeedbackShare Page Click to enlarge photo. Enlarge Photo Image courtesy of Macmillan Publishers Ltd: Gelfand, I., et al.

450

Pilot Application of Risk Informed Safety Margins to Support Nuclear Plant Long-Term Operation Decisions: Impacts on Safety Margins of Extended Power Uprates for BWR Station Blackout Events  

Science Conference Proceedings (OSTI)

The risk-informed safety margin characterization (RISMC) framework is a technically robust approach that could be used to analyze nuclear power plant (NPP) safety margins for issues of significance to NPP safety. This report describes application of the RISMC framework to analysis of the impacts of an extended power uprate (EPU) to a boiling water reactor (BWR) station blackout (SBO) event, with emphasis on changes in safety margins due to elevated power levels. The analysis focused on probabilistic ...

2013-08-27T23:59:59.000Z

451

NETL: Oil & Natural Gas Projects 00516 North Dakota Refining Capacity Study  

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

North Dakota Refining Capacity Study North Dakota Refining Capacity Study DE-FE0000516 Goal The objective of the North Dakota Refining Capacity study is to assess the feasibility of increasing the oil refinery capacity in North Dakota, and, if possible, determine the scale of such an expansion, the slate of refined product(s) that would produce the most economic benefit, and the preferred ownership model, i.e., private, public or private-public. Performer North Dakota Association of Rural Electric Cooperatives (NDAREC) Corval Group, partnered with Purvin & Gertz and Mustang Engineering Background The genesis of this study came from an April 2008 report issued by the U.S. Geological Survey (USGS) asserting that North Dakota and Montana have an estimated 3.0 to 4.3 billion barrels of undiscovered, technically recoverable oil in an area known as the Bakken Formation. This assessment shows a 25-fold increase in the amount of recoverable oil compared to the USGS 1995 estimate of 151 million barrels of oil. The Bakken Formation estimate is larger than all other current USGS oil assessments of the lower 48 states and is the largest "continuous" oil accumulation ever assessed by the USGS. The new report points out that the new geologic models applied to the Bakken Formation, advances in drilling and production technologies, and recent oil discoveries have resulted in these substantially larger technically recoverable oil volumes. About 105 million barrels of oil were produced from the Bakken Formation by the end of 2007. In 2008, the formation produced another 27.2 million barrels of oil, which represented 43% of the state’s annual oil production of some 62.3 million barrels. Even though oil prices have dropped significantly in recent months, it appears that oil production from this formation will continue strong for decades to come. Most recently, a major production find has occurred in the Three Forks formation underlying the Bakken. This find is still undergoing significant testing, but early evidence suggests it represents another significant recoverable pool of oil in western North Dakota.

452

Introduction to Energy Savings in Process Heating for the Corn Refining  

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

Savings in Process Heating for the Corn Savings in Process Heating for the Corn Refining Industry Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In This Section Campaigns Commercial building design Communications resources Energy management guidance Financial resources Portfolio Manager Products and purchasing Recognition Research and reports Service and product provider (SPP) resources

453

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

E-Print Network (OSTI)

The purpose of this work was to study learn about grain refinement mechanisms and texture development in cast n-type Bi90Sb10 alloy caused by severe plastic deformation. The practical objective is to produce a fine grained and textured microstructure in Bi90Sb10 alloy with enhanced thermoelectric performance and mechanical strength. In the study, twelve millimeter diameter cast bars of Bi90Sb10 alloy were encapsulated in square cross section aluminum 6061 alloy containers. The composite bars were equal channel angular (ECAE) extruded through a 90 degree angle die at high homologous temperature. Various extrusion conditions were studied including punch speed (0.1, 0.3 and 0.6 in/min), extrusion temperature (220, 235 and 250oC), number of extrusion passes (1, 2 and 4), route (A, BC and C), and exit channel area reduction ratio (half and quarter area of inlet channel). The affect of an intermediate long term heat treatment (for 100 hours at 250oC under 10-3 torr vacuum) was explored. Processed materials were characterized by optical microscopy, x-ray diffraction, energy dispersive spectroscopy, wavelength dispersive spectroscopy and scanning electron microscopy. Texture was analyzed using the {006} reflection plane to identify the orientation of the basal poles in processed materials. The cast grains were irregularly shaped, had a grain size of hundreds-of-microns to millimeters, and showed inhomogeneous chemical composition. Severe plastic deformation refines the cast grains through dynamic recrystallization and causes the development of a bimodal microstructure consisting of fine grains (5-30 micron) and coarse grains (50-300 micron). ECAE processing of homogenizied Bi-Sb alloy causes grain refinement and produces a more uniform microstructure. Texture results show that ECAE route C processing gives a similar or slightly stronger texture than ECAE route A processing. In both cases, the basal-plane poles become aligned with the shear direction. Reduction area exit channel extrusion is more effective for both grain refinement and texture enhancement than simple ECAE processing.

Im, Jae-taek

2007-05-01T23:59:59.000Z

454

Quantification of the Variability of Diaphragm Motion and Implications for Treatment Margin Construction  

Science Conference Proceedings (OSTI)

Purpose: To quantify the variability of diaphragm motion during free-breathing radiotherapy of lung patients and its effect on treatment margins to account for geometric uncertainties. Methods and Materials: Thirty-three lung cancer patients were analyzed. Each patient had 5-19 cone-beam scans acquired during different treatment fractions. The craniocaudal position of the diaphragm dome on the same side as the tumor was tracked over 2 min in the projection images, because it is both easily visible and a suitable surrogate to study the variability of the tumor motion and its impact on treatment margins. Intra-acquisition, inter-acquisition, and inter-patient variability of the respiratory cycles were quantified separately, as were the probability density functions (PDFs) of the diaphragm position over each cycle, each acquisition, and each patient. Asymmetric margins were simulated using each patient PDF and compared to symmetric margins computed from a margin recipe. Results: The peak-to-peak amplitude variability (1 SD) was 3.3 mm, 2.4 mm, and 6.1 mm for the intra-acquisition, inter-acquisition, and inter-patient variability, respectively. The average PDF of each cycle was similar to the sin{sup 4} function but the PDF of each acquisition was closer to a skew-normal distribution because of the motion variability. Despite large interfraction baseline variability, the PDF of each patient was generally asymmetric with a longer end-inhale tail because the end-exhale position was more stable than the end-inhale position. The asymmetry of the PDF required asymmetric margins around the time-averaged position to account for the position uncertainty but the average difference was 1.0 mm (range, 0.0-4.4 mm) for a sharp penumbra and an idealized online setup correction protocol. Conclusion: The respiratory motion is more irregular during the fractions than between the fractions. The PDF of the respiratory motion is asymmetrically distributed. Both the intra-acquisition variability and the PDF asymmetry have a limited impact on dose distributions and inferred margins. The use of a margin recipe to account for respiratory motion with an estimate of the average motion amplitude was adequate in almost all patients.

Rit, Simon; Herk, Marcel van; Zijp, Lambert [Department of Radiation Oncology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam (Netherlands); Sonke, Jan-Jakob, E-mail: j.sonke@nki.nl [Department of Radiation Oncology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam (Netherlands)

2012-03-01T23:59:59.000Z

455

Light Water Reactor Sustainability Program Risk Informed Safety Margin Characterization (RISMC) Advanced Test Reactor Demonstration Case Study  

SciTech Connect

Safety is central to the design, licensing, operation, and economics of Nuclear Power Plants (NPPs). Consequently, the ability to better characterize and quantify safety margin holds the key to improved decision making about LWR design, operation, and plant life extension. A systematic approach to characterization of safety margins and the subsequent margins management options represents a vital input to the licensee and regulatory analysis and decision making that will be involved. The purpose of the RISMC Pathway R&D is to support plant decisions for risk-informed margins management with the aim to improve economics, reliability, and sustain safety of current NPPs. Goals of the RISMC Pathway are twofold: (1) Develop and demonstrate a risk-assessment method coupled to safety margin quantification that can be used by NPP decision makers as part of their margin recovery strategies. (2) Create an advanced “RISMC toolkit” that enables more accurate representation of NPP safety margin. This report describes the RISMC methodology demonstration where the Advanced Test Reactor (ATR) was used as a test-bed for purposes of determining safety margins. As part of the demonstration, we describe how both the thermal-hydraulics and probabilistic safety calculations are integrated and used to quantify margin management strategies.

Curtis Smith; David Schwieder; Cherie Phelan; Anh Bui; Paul Bayless

2012-08-01T23:59:59.000Z

456

Late Quaternary Geochronology and Recent Faulting Along the Eastern Margin of the Shukash Basin, Central Cascade Range, Oregon.  

E-Print Network (OSTI)

??Part I: Seismic Stratigraphy Transecting the Eastern Margin of the Shukash Basin, Central Cascade Range, Oregon The Shukash Basin is a sediment filled-trough that lies… (more)

Lyon, Edward W., Jr.

2001-01-01T23:59:59.000Z

457

Investigation on the Benefits of Safety Margin Improvement in CANDU Nuclear Power Plant Using an FPGA-based Shutdown System.  

E-Print Network (OSTI)

??The relationship between response time and safety margin of CANadian Deuterium Uranium (CANDU) nuclear power plant (NPP) is investigated in this thesis. Implementation of safety… (more)

She, Jingke

2012-01-01T23:59:59.000Z

458

Table 3b. Imported Refiner Acquisition Cost of Crude Oil, Projected vs. Actual  

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

b. Imported Refiner Acquisition Cost of Crude Oil, Projected vs. Actual b. Imported Refiner Acquisition Cost of Crude Oil, Projected vs. Actual Projected Price in Nominal Dollars (nominal dollars per barrel) 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 AEO 1994 17.06 17.21 18.24 19.43 20.64 22.12 23.76 25.52 27.51 29.67 31.86 34.00 36.05 38.36 40.78 43.29 45.88 48.37 AEO 1995 15.24 17.27 18.23 19.26 20.39 21.59 22.97 24.33 25.79 27.27 28.82 30.38 32.14 33.89 35.85 37.97 40.28 AEO 1996 17.16 17.74 18.59 19.72 20.97 22.34 23.81 25.26 26.72 28.22 29.87 31.51 33.13 34.82 36.61 38.48 40.48

459

Table 3a. Imported Refiner Acquisition Cost of Crude Oil, Projected vs. Actual  

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

a. Imported Refiner Acquisition Cost of Crude Oil, Projected vs. Actual a. Imported Refiner Acquisition Cost of Crude Oil, Projected vs. Actual Projected Price in Constant Dollars (constant dollars per barrel in "dollar year" specific to each AEO) AEO Dollar Year 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 AEO 1994 1992 16.69 16.43 16.99 17.66 18.28 19.06 19.89 20.72 21.65 22.61 23.51 24.29 24.90 25.60 26.30 27.00 27.64 28.16 AEO 1995 1993 14.90 16.41 16.90 17.45 18.00 18.53 19.13 19.65 20.16 20.63 21.08 21.50 21.98 22.44 22.94 23.50 24.12 AEO 1996 1994 16.81 16.98 17.37 17.98 18.61 19.27 19.92 20.47 20.97 21.41 21.86 22.25 22.61 22.97 23.34 23.70 24.08

460

Solvent Refined Coal (SRC) process. Quarterly technical progress report, January 1979-March 1979  

Science Conference Proceedings (OSTI)

This report summarizes the progress of the Solvent Refined Coal (SRC) Project by the Pittsburg and Midway Coal Mining Co. for the Department of Energy for the period January 1, 1979 to March 31, 1979. Activities included the operation and modification of the Solvent Refined Coal Pilot Plant at Fort Lewis, Washington; the Process Development Unit P-99 at Harmarville, Pennsylvania; and research at Merriam Laboratory in Merriam, Kansas. The Pilot Plant processed Powhatan No. 5 Coal in the SRC-II mode of operation studying the effect of coal particle size and system temperature on coal slurry blending and the effect of carbon monoxide concentration in the reaction feed gas on process yields. January and February were spent completing installation of a fourth High Pressure Separator on Process Development Unit P-99 to better simulate operating conditions for the proposed Demonstration Plant. During March, one run was completed at P-99 feeding Pittsburgh Seam Coal from the Powhatan No. 5 Mine. Merriam investigations included a study of the effect of iron containing additives on SRC-I operation, the addition of carbon monoxide to the feed gas, utilization of a hydrogenated solvent (Cresap process solvent) in the SRC-I mode under both normal and short residence time operating conditions, and development of a simulated distillation technique to determine the entire boiling range distribution of product oils.

Not Available

1980-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "higher refining margins" 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

Analyzing the oil refining industry in developing countries: A comparative study of China and India  

SciTech Connect

The oil refining industry is a critical link in the energy chain in many developing and industrialized countries, transforming crude oil into transport fuels (gasoline, jet fuel, and diesel), residual fuel oil (widely used as a fuel in industry and the electric power sector), and other products such as kerosine, frequently for lighting an cooking usages. Three to four decades ago, the demand for oil products in most developing countries was centered to a few large cities; thus, few refineries were built in these regions. But because of the astonishing economic growth in many developing nations, demand for oil products has increased rapidly. As a result, the refining industry has expanded rapidly in such countries, even in cases were there is no domestic crude oil production. Oil product demand and refinery expansion in Asian developing countries in particular have experienced significant growth. Between 1976 and 1993, oil product demand and refinery capacity in that region (excluding Japan) increased annually an average of 5.2 percent and 4.3 percent, respectively, whereas the comparable figures for the world as a whole remained virtually unchanged during the same period. The substantial gains in Asia`s crude oil production in the 1970s is believed to have facilitated this refinery expansion.

Tang, F.C.

1994-12-31T23:59:59.000Z

462

Performance Characteristics of an Adaptive Mesh RefinementCalculation on Scalar and Vector Platforms  

SciTech Connect

Adaptive mesh refinement (AMR) is a powerful technique thatreduces the resources necessary to solve otherwise in-tractable problemsin computational science. The AMR strategy solves the problem on arelatively coarse grid, and dynamically refines it in regions requiringhigher resolution. However, AMR codes tend to be far more complicatedthan their uniform grid counterparts due to the software infrastructurenecessary to dynamically manage the hierarchical grid framework. Despitethis complexity, it is generally believed that future multi-scaleapplications will increasingly rely on adaptive methods to study problemsat unprecedented scale and resolution. Recently, a new generation ofparallel-vector architectures have become available that promise toachieve extremely high sustained performance for a wide range ofapplications, and are the foundation of many leadership-class computingsystems worldwide. It is therefore imperative to understand the tradeoffsbetween conventional scalar and parallel-vector platforms for solvingAMR-based calculations. In this paper, we examine the HyperCLaw AMRframework to compare and contrast performance on the Cray X1E, IBM Power3and Power5, and SGI Altix. To the best of our knowledge, this is thefirst work that investigates and characterizes the performance of an AMRcalculation on modern parallel-vector systems.

Welcome, Michael; Rendleman, Charles; Oliker, Leonid; Biswas, Rupak

2006-01-31T23:59:59.000Z

463

Dynamic Adaptive Multimesh Refinement for Coupled Physics Equations Applicable to Nuclear Engineering  

E-Print Network (OSTI)

The processes studied by nuclear engineers generally include coupled physics phenomena (Thermal-Hydraulics, Neutronics, Material Mechanics, etc.) and modeling such multiphysics processes numerically can be computationally intensive. A way to reduce the computational burden is to use spatial meshes that are optimally suited for a specific solution; such meshes are obtained through a process known as Adaptive Mesh Refinement (AMR). AMR can be especially useful for modeling multiphysics phenomena by allowing each solution component to be computed on an independent mesh (Multimesh AMR). Using AMR on time dependent problems requires the spatial mesh to change in time as the solution changes in time. Current algorithms presented in the literature address this concern by adapting the spatial mesh at every time step, which can be inefficient. This Thesis proposes an algorithm for saving computational resources by using a spatially adapted mesh for multiple time steps, and only adapting the spatial mesh when the solution has changed significantly. This Thesis explores the mechanisms used to determine when and where to spatially adapt for time dependent, coupled physics problems. The algorithm is implemented using the Deal.ii fiinite element library [1, 2], in 2D and 3D, and is tested on a coupled neutronics and heat conduction problem in 2D. The algorithm is shown to perform better than a uniformly refined static mesh and, in some cases, a mesh that is spatially adapted at every time step.

Dugan, Kevin

2013-08-01T23:59:59.000Z

464

Decontamination of metals by melt refining/slagging: First year progress report  

SciTech Connect

As the number of nuclear installations undergoing decontamination and decommissioning (D&D) increases, current radioactive waste storage space is consumed and establishment of new waste storage areas becomes increasingly difficult. The problem of handling and storing radioactive scrap metal (RSM) gains increasing importance in the DOE Environmental Restoration and Waste Management Program. To alleviate present and future waste storage problems, Westinghouse Idaho Nuclear Company (WINCO) is managing a program for the recycling of RSM for beneficial use within the DOE complex. As part of that effort, Montana Tech has been awarded a contract to help optimize melting and refining technologies for the recycling of stainless steel RSM. The scope of the Montana Tech program includes a literature survey, a decontaminating slag design study, small scale melting studies to determine optimum slag compositions for removal of radioactive contaminant surrogates, analysis of preferred melting techniques, and coordination of pilot scale melting demonstrations (100-500 lbs) to be conducted at selected commercial facilities. This program will identify methods that can be used to recycle stainless steel RSM which will be used to fabricate high and low level waste canisters for the Idaho Waste Immobilization Facility. This report summarizes the results of an extensive literature review and the first year`s progress on slag design, small-scale melt refining of surrogate-containing stainless steel (presently only a three month effort), and pilot-scale preparation of surrogate master ingots.

Mizia, R.E. [ed.; Worcester, S.A.; Twidwell, L.G.; Paolini, D.J.; Weldon, T.A.

1994-03-01T23:59:59.000Z

465

Projected refined product balances in key Latin American countries: A preliminary examination  

SciTech Connect

Over the years, the East-West Center (EWC) has developed considerable expertise in refinery modeling, especially in the area of forecasting product balances for countries, given planned capacity changes, changes in product demand, changes in crude slates, and changes in product specifications. This expertise has been applied on an ongoing basis to the major refiners in the Middle East and the Asia-Pacific region, along with the US West Coast as region in its own right. Refinery modeling in these three areas has been ongoing for nearly 15 years at the Center, and the tools and information sources are now well developed. To date, the EWC has not applied these tools to Latin America. Although research on Latin America has been an ongoing area of concern at the Center in recent years, the information gathered to date is still not of the level of detail nor quality available for other areas. The modeling efforts undertaken in this report are of a ``baseline`` nature, designed to outline the major issues, attempt a first cut at emerging product balances, and, above all, to elicit commentary from those directly involved in the oil industry in the key countries modeled. Our experience in other regions has shown that it takes a few years dialogue with refiners and government planner in individual countries to develop a reliable database, as well as the insights into operational constraints and practices that make accurate modeling possible. This report is no more than a first step down the road.

1996-06-01T23:59:59.000Z

466

Class, Race, and Higher Education in America  

E-Print Network (OSTI)

Century New England, St. Martin's Press, New York Fay, J.S.Higher Education in America Martin Trow Goldman School ofH.M. Laslett and Seymour Martin Lipset, eds (1974). provided

Trow, Martin

2006-01-01T23:59:59.000Z

467

Modelling higher-order dual nondeterminacy  

Science Conference Proceedings (OSTI)

We investigate models for programming and specifying in which higher-order functions and nondeterminacy (both demonic and angelic) coexist. The models are built using predicate transformers, binary multirelations, state transformers, and free lattices ...

Joseph M. Morris; Malcolm Tyrrell

2008-07-01T23:59:59.000Z

468

From Higher Education To Work In West  

E-Print Network (OSTI)

1. Work Participation And Average Annualized Wages Of Graduates From West Virginia Public Higher .................................................................................................1 Results By Year And Residency ........................................................................................22 Appendix I: Detailed Description Of Employment Data .........................................29

Mohaghegh, Shahab

469

Firm Size And Higher Education Graduate  

E-Print Network (OSTI)

of Tables 1. West Virginia Public Higher Education Graduate Work Participation By Area Of Concentration .................................................................................................1 Employment And Annualized Wages By West Virginia Firm Employment Size.....................................................18 Appendix I: Detailed Description Of Employment Data .........................................19

Mohaghegh, Shahab

470

From Higher Education To Work In West  

E-Print Network (OSTI)

1. Number Of Graduates By Area Of Concentration And Degree From W.Va. Public Higher Education .................................................................................................1 Results By Year, Experience, Residency, And Degree............................................4.....................................................34 Appendix I: Detailed Description Of Employment Data .........................................36

Mohaghegh, Shahab

471

Rotating Black Holes in Higher Dimensions  

E-Print Network (OSTI)

The properties of higher-dimensional black holes can differ significantly from those of black holes in four dimensions, since neither the uniqueness theorem, nor the staticity theorem or the topological censorship theorem generalize to higher dimensions. We first discuss black holes of Einstein-Maxwell theory and Einstein-Maxwell-Chern-Simons theory with spherical horizon topology. Here new types of stationary black holes are encountered. We then discuss nonuniform black strings and present evidence for a horizon topology changing transition.

Burkhard Kleihaus; Jutta Kunz; Francisco Navarro-Lerida

2007-10-11T23:59:59.000Z

472

Dynamical Criterion for a Marginally Unstable, Quasi-linear Behavior in a Two-Layer Model  

Science Conference Proceedings (OSTI)

A two-layer quasi-geostrophic flow forced by meridional variations in heating can be in regimes ranging from radiative equilibrium to forced geostrophic turbulence. Between these extremes is a regime where the time-mean (zonal) flow is marginally ...

W. Ebisuzaki

1988-06-01T23:59:59.000Z

473

Proceedings of the Combustion Institute, Volume 28, 2000/pp. 757763 EXPERIMENTAL DETERMINATION OF THE STABILITY MARGIN  

E-Print Network (OSTI)

757 Proceedings of the Combustion Institute, Volume 28, 2000/pp. 757­763 EXPERIMENTAL DETERMINATION the response of the combustion process heat release to driven flow oscillations and the response determine the stability margin of combustors. Such an approach would enable combustion engi- neers

Lieuwen, Timothy C.

474

100,000 Years of African monsoon variability recorded in sediments of the Nile margin  

E-Print Network (OSTI)

100,000 Years of African monsoon variability recorded in sediments of the Nile margin Marie Revel a constitutes a first continuous high resolution record of the East African monsoon regime intensity over of the African monsoon over Ethiopia, the Nabtian period from 14 to 8 ka cal BP and the Saharan period from 98

Demouchy, Sylvie

475

Seismic Margin Assessment of the Edwin I. Hatch Nuclear Plant, Unit 1  

Science Conference Proceedings (OSTI)

A seismic margin assessment of the Georgia Power Company Edwin I. Hatch, unit 1 nuclear power plant showed the practicality of an EPRI methodology for assessing the ability of nuclear plants to withstand large earthquakes. The assessment, performed by the utility, established that the plant can withstand an earthquake at least twice the magnitude for which it was designed.

1991-08-01T23:59:59.000Z

476

Wilson cycles, tectonic inheritance, and rifting of the North American Gulf of Mexico continental margin  

E-Print Network (OSTI)

Wilson cycles, tectonic inheritance, and rifting of the North American Gulf of Mexico continental during opening of the Gulf of Mexico. Unlike the Atlantic margins, where Wilson cycles were first recognized, breakup in the Gulf of Mexico did not initially focus within the orogen, but was instead

Huerta, Audrey D.

477

Modified Halocline Water over the Laptev Sea Continental Margin: Historical Data Analysis  

Science Conference Proceedings (OSTI)

Historical hydrographic data (1940s–2010) show a distinct cross-slope difference of the lower halocline water (LHW) over the Laptev Sea continental margins. Over the slope, the LHW is on average warmer and saltier by 0.2°C and 0.5 psu, ...

Igor A. Dmitrenko; Sergey A. Kirillov; Vladimir V. Ivanov; Bert Rudels; Nuno Serra; Nikolay V. Koldunov

2012-08-01T23:59:59.000Z

478

Seismic Margin Assessment of the Catawba Nuclear Station, Volume 1: Main Report  

Science Conference Proceedings (OSTI)

A seismic margin assessment of the Duke Power Company Catawba unit 2 nuclear station showed the practicality of an EPRI-developed methodology for demonstrating the ability of nuclear plants to withstand earthquakes beyond design basis. The assessment established that the Catawba station would survive earthquake loads up to twice its design basis.

1989-05-12T23:59:59.000Z

479

Learning by extrapolation from marginal to full-multivariate probability distributions: decreasingly naive Bayesian classification  

Science Conference Proceedings (OSTI)

Averaged n-Dependence Estimators (AnDE) is an approach to probabilistic classification learning that learns by extrapolation from marginal to full-multivariate probability distributions. It utilizes a single parameter that transforms ... Keywords: Averaged one-dependence estimators, Bayesian learning, Classification learning, Ensemble learning, Feating, Learning without model selection, Naive Bayes, Probabilistic learning, Semi-naive Bayesian learning

Geoffrey I. Webb; Janice R. Boughton; Fei Zheng; Kai Ming Ting; Houssam Salem

2012-02-01T23:59:59.000Z

480

Anomalous subsidence on the rifted volcanic margin of Pakistan: No influence from Deccan plume  

E-Print Network (OSTI)

Anomalous subsidence on the rifted volcanic margin of Pakistan: No influence from Deccan plume, Clifton, Karachi 75600, Pakistan A B S T R A C TA R T I C L E I N F O Article history: Received 28 October

Clift, Peter

Note: This page contains sample records for the topic "higher refining margins" from the National Library of EnergyBeta (NLEBeta).
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481

Sidescan Sonar Imagery of the Winter Marginal Ice Zone Obtained from an AUV  

Science Conference Proceedings (OSTI)

The first Arctic under-ice sidescan sonar imagery from an autonomous underwater vehicle (AUV) has been obtained in the winter marginal ice zone of the East Greenland Current at 73°00?N, 11°47?W, using a Maridan Martin 150 vehicle operated from R/...

P. Wadhams; J. P. Wilkinson; A. Kaletzky

2004-09-01T23:59:59.000Z

482

Margin-based over-sampling method for learning from imbalanced datasets  

Science Conference Proceedings (OSTI)

Learning from imbalanced datasets has drawn more and more attentions from both theoretical and practical aspects. Oversampling is a popular and simple method for imbalanced learning. In this paper, we show that there is an inherently potential risk associated ... Keywords: generalization, imbalance learning, large margin theory, over-fitting, over-sampling

Xiannian Fan; Ke Tang; Thomas Weise

2011-05-01T23:59:59.000Z

483

A higher limit approach to homology theories.  

E-Print Network (OSTI)

A lot of well-known functors such as group homology, cyclic homology of algebras can be described as limits of certain simply defined functors over categories of presentations. In this paper, we develop technique for the description of the higher limits over categories of presentations and show that certain homological functors can be described in this way. In particular, we give a description of Hochschild homology and the derived functors of tensor, symmetric and exterior powers in the sense of Dold and Puppe as higher limits.

Sergei O. Ivanov; Roman Mikhailov

484

QSO hosts and companions at higher redshifts  

E-Print Network (OSTI)

This review presents the current state of work on QSO hosts and companions at redshifts above 1. This includes the properties of QSO host galaxies, such as size, scale length, and luminosity, and morphology, as they appear to change with redshift and radio activity. This leads to a view of how the properties of galaxies that host QSOs change with cosmic time. I also review studies of the galaxy companions to QSOs at higher redshifts, and studies of the emission line gas in and around higher redshift QSOs. These topics should see great progress in the next decade.

J. B. Hutchings

2001-07-09T23:59:59.000Z

485

The Impact of Environmental Compliance Costs on U.S. Refining Profitability 1995-2001  

Gasoline and Diesel Fuel Update (EIA)

Impact of Environmental Impact of Environmental Compliance Costs on U.S. Refining Profitability 1995-2001 May 2003 Energy Information Administration Office of Energy Markets and End Use U.S. Department of Energy Washington, D.C. 20585 This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the Department of Energy. The information contained herein should not be construed as advocating or reflecting any policy position of the Department of Energy or any other organization. Contacts This report was prepared in the Office of Energy Markets and End Use of the Energy Information Administration (EIA), U.S. Department of Energy, under the general direction of W. Calvin Kilgore. The project was directed by Mark E. Rodekohr, Director

486

Federal/Industry Development of Energy-Conserving Technologies for the Chemical and Petroleum Refining Industries  

E-Print Network (OSTI)

Argonne National Laboratory has started a program to identify future RD&D projects that (i) promise cost-effective savings of scarce fuels in the chemical and petroleum refining industries, (ii) are not likely to be pursued by industry alone. This program, sponsored by the Office of Industrial Programs of DOE, defines technology needs from an industry viewpoint, so that recommended projects will complement industry's efforts and result in technologies for which there are clearly identifiable markets. The search for RD&D projects is currently focusing in the following technology categories: (i) reduction of fouling in cooling water systems, (ii) alternatives to conventional distillation and separation, (iii) low level waste heat recovery, (iv) advanced concepts in furnaces and boilers, (v) coal utilization, and (vi) advanced concepts in conversion and processing. The future direction of the program will continue to be dictated largely by industry needs.

Alston, T. G.; Humphrey, J. L.

1981-01-01T23:59:59.000Z

487

Acute toxicity of selected crude and refined shale oil derived and petroleum-derived substances  

DOE Green Energy (OSTI)

General information was obtained on the toxicity of selected samples of crude Paraho shale oil and some of its derivatives, some crude petroleums, and 3 refined petroleum products. Five tests were used to determine the acute toxicity of these substances: acute lethality in mice following oral or intraperitoneal administration of a single dose; acute dermal toxicity of a single dose in rats; delayed-type allergic contact hypersensitivity in guinea pigs; primary eye irritation and primary skin irritation of a single dose in rabbits. Histopathologic changes induced in mice following intraperitoneal injection of a single large dose of crude shale oil and two of its hydrotreated derivatives were examined. Studies also have been initiated to examine the tumor inducing potential of selected samples. The test system used was the mouse lung adenoma bioassay. The present report describes our findings and shows that all compounds tested have very low or no acute toxic effects in laboratory animals.

Smith, L.H.; Haschek, W.M.; Witschi, H.

1980-01-01T23:59:59.000Z

488

Lance for fuel and oxygen injection into smelting or refining furnace  

DOE Patents (OSTI)

A furnace for smelting iron ore and/or refining molten iron is equipped with an overhead pneumatic lance, through which a center stream of particulate coal is ejected at high velocity into a slag layer. An annular stream of nitrogen or argon enshrouds the coal stream. Oxygen is simultaneously ejected in an annular stream encircling the inert gas stream. The interposition of the inert gas stream between the coal and oxygen streams prevents the volatile matter in the coal from combusting before it reaches the slag layer. Heat of combustion is thus more efficiently delivered to the slag, where it is needed to sustain the desired reactions occurring there. A second stream of lower velocity oxygen can be delivered through an outermost annulus to react with carbon monoxide gas rising from slag layer, thereby adding still more heat to the furnace. 7 figures.

Schlichting, M.R.

1994-12-20T23:59:59.000Z

489

Development of a performance-based industrial energy efficiency indicator for corn refining plants.  

Science Conference Proceedings (OSTI)

Organizations that implement strategic energy management programs have the potential to achieve sustained energy savings if the programs are carried out properly. A key opportunity for achieving energy savings that plant managers can take is to determine an appropriate level of energy performance by comparing their plant's performance with that of similar plants in the same industry. Manufacturing facilities can set energy efficiency targets by using performance-based indicators. The U.S. Environmental Protection Agency (EPA), through its ENERGY STAR{reg_sign} program, has been developing plant energy performance indicators (EPIs) to encourage a variety of U.S. industries to use energy more efficiently. This report describes work with the corn refining industry to provide a plant-level indicator of energy efficiency for facilities that produce a variety of products--including corn starch, corn oil, animal feed, corn sweeteners, and ethanol--for the paper, food, beverage, and other industries in the United States. Consideration is given to the role that performance-based indicators play in motivating change; the steps needed to develop indicators, including interacting with an industry to secure adequate data for an indicator; and the actual application and use of an indicator when complete. How indicators are employed in the EPA's efforts to encourage industries to voluntarily improve their use of energy is discussed as well. The report describes the data and statistical methods used to construct the EPI for corn refining plants. Individual equations are presented, as are the instructions for using them in an associated Excel spreadsheet.

Boyd, G. A.; Decision and Information Sciences; USEPA

2006-07-31T23:59:59.000Z

490

General quantum key distribution in higher dimension  

E-Print Network (OSTI)

We study a general quantum key distribution protocol in higher dimension. In this protocol, quantum states in arbitrary g+1 (1?g?d) out of all d+1 mutually unbiased bases in a d-dimensional system can be used for the key ...

Shi, Han-Duo

491

Higher Order Differential Attack of Camellia (II)  

Science Conference Proceedings (OSTI)

Camellia is a 128-bit block cipher, proposed by NTT and Mitsubishi in 2000. It has been shown that 10 round variant without FL function under a 256-bit secret key is attackable by Higher Order Differential Attack and even if FL function is included, ...

Yasuo Hatano; Hiroki Sekine; Toshinobu Kaneko

2002-08-01T23:59:59.000Z

492

Complexity of the higher order matching  

Science Conference Proceedings (OSTI)

We use the standard encoding of Boolean values in simply typed lambda calculus to develop a method of translating SAT problems for various logics into higher order matching. We obtain this way already known NP-hardness bounds for the order two and three ...

Tomasz Wierzbicki

1999-07-01T23:59:59.000Z

493

Look-ahead voltage and load margin contingency selection functions for large-scale power systems  

SciTech Connect

Given the current operating condition (obtained from the real-time data), the near-term load demand at each bus (obtained from short-term load forecast), and the generation dispatch (say, based on economic dispatch), the authors present in this paper a load margin measure (MW and/or MVAR) to assess the system`s ability to withstand the forecasted load and generation variations. The authors also present a method to predict near-term system voltage profiles. The proposed look-ahead measure and the proposed voltage prediction are then applied to contingency selections for the near-term power system in terms of load margins to collapse and of the bus voltage magnitudes. They evaluate the proposed load-ahead measure and the voltage profile prediction on several power systems including a 1169-bus power system with 53 contingencies with promising results.

Chiang, H.D.; Wang, C.S.; Flueck, A.J. [Cornell Univ., Ithaca, NY (United States). School of Electrical Engineering

1997-02-01T23:59:59.000Z

494

Transient analyses and thermal-hydraulic safety margins for the Greek Research Reactor (GRRI)  

Science Conference Proceedings (OSTI)

Various core configurations for the Greek research reactor (GRR1) have been considered in assessing the safety issues of adding a beryllium reflector to the existing water reflected HEU core and the transition from HEU to an all LEU core. The assessment has included both steady-state and transient analyses of safety margins and limits. A small all fresh Be reflected HEU core with a rather large nuclear peaking factor can still be operated safely, and thus adding a Be reflector to the larger depleted HEU core should not pose a problem. The transition mixed core with 50% LEU elements has larger void and Doppler coefficients than the HEU reference core and gives a lower peak clad temperature under transient conditions. The transition cores should give ever increasing margins to plate melting and fission product release as LEU elements are added to the core.

Woodruff, W.L.; Deen, J.R. [Argonne National Lab., IL (United States); Papastergiou, C. [National Centre for Scientific Research Demokritos, Athens (Greece)

1995-02-01T23:59:59.000Z

495

Workshop on Program for Elimination of Requirements Marginal to Safety: Proceedings  

SciTech Connect

These are the proceedings of the Public Workshop on the US Nuclear Regulatory Commission`s Program for Elimination of Requirements Marginal to Safety. The workshop was held at the Holiday Inn, Bethesda, on April 27 and 28, 1993. The purpose of the workshop was to provide an opportunity for public and industry input to the program. The workshop addressed the institutionalization of the program to review regulations with the purpose of eliminating those that are marginal. The objective is to avoid the dilution of safety efforts. One session was devoted to discussion of the framework for a performance-based regulatory approach. In addition, panelists and attendees discussed scope, schedules and status of specific regulatory items: containment leakage testing requirements, fire protection requirements, requirements for environmental qualification of electrical equipment, requests for information under 10CFR50.54(f), requirements for combustible gas control systems, and quality assurance requirements.

Dey, M. [Nuclear Regulatory Commission, Washington, DC (United States). Div. of Safety Issue Resolution; Arsenault, F.; Patterson, M.; Gaal, M. [SCIENTECH, Inc., Rockville, MD (United States)

1993-09-01T23:59:59.000Z

496

A Methodology for Assessment of Nuclear Power Plant Seismic Margin (Revision 1)  

Science Conference Proceedings (OSTI)

EPRI's seismic margin methodology enables utility engineers to quantify a nuclear power plant's ability to withstand an earthquake greater than design and still safely shut down for at least 72 hours. This cost-effective, practical methodology uses generic screening of systems and component seismic ruggedness and does not require probabilistic calculations. The revision adds depth, detail, and more complete procedures to the original report but does not change the basic method.

1991-08-01T23:59:59.000Z

497

Levy process-driven mean-reverting electricity price model: the marginal distribution analysis  

Science Conference Proceedings (OSTI)

We propose a class of stochastic mean-reverting models for electricity prices with Levy process-driven Ornstein-Uhlenbeck (OU) processes being the building blocks. We first fit marginal distributions of power price series to two special classes of distributions ... Keywords: Correlation structure, Electricity market signals, Electricity option pricing, Heavy-tail, Levy process, Ornstein-Uhlenbeck type process, Risk management, Unbalanced-tail

Shi-Jie Deng; Wenjiang Jiang

2005-10-01T23:59:59.000Z

498

Evaluation of Risk Informed Safety Margin Characterization for Applicability to Significance Determination Process Evaluations  

Science Conference Proceedings (OSTI)

This report describes an industry application of the risk-informed safety margin characterization (RISMC) framework to the analysis of a plant event previously subjected to a significance determination process (SDP) evaluation. Within the nuclear regulatory system in the United States, the SDP uses risk insights, where appropriate, to help inspectors and regulatory staff determine the safety or security significance of inspection findings identified within the seven cornerstones of safety at ...

2013-12-16T23:59:59.000Z

499

Technical Framework for Management of Safety Margins—Loss of Main Feedwater Pilot Application  

Science Conference Proceedings (OSTI)

This report presents the results of a trial application to assess safety margins using a risk informed approach. The trial application focused on a pressurized water reactor (PWR) loss of feedwater (LOFW) event with failure of auxiliary feedwater (AFW), for which feed and bleed cooling would be required to prevent core damage. For this trial application the main parameters which impact core damage for the scenario were identified and distributions were constructed to represent the uncertainties associate...

2011-11-23T23:59:59.000Z

500

Margins for an in-plant piping system under dynamic loading  

Science Conference Proceedings (OSTI)

The objective of this study is to verify that piping designed according to current practice does indeed have a large margin against failure and to quantify the excess capacity for piping and dynamic pipe supports on the basis of data obtained in a series of high-level seismic experiments (designated SHAM) on an in-plant piping system at the HDR (Heissdampfreaktor) Test Facility in Germany. 4 refs., 6 tabs.

Kot, C.A.; Srinivasan, M.G.; Hsieh, B.J.

1991-01-01T23:59:59.000Z