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1

The Monte Carlo Independent Column Approximation Model Intercomparison  

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

The Monte Carlo Independent Column Approximation Model Intercomparison The Monte Carlo Independent Column Approximation Model Intercomparison Project (McMIP) Barker, Howard Meteorological Service of Canada Cole, Jason Meteorological Service of Canada Raisanen, Petri Finnish Meteorological Institute Pincus, Robert NOAA-CIRES Climate Diagnostics Center Morcrette, Jean-Jacques European Centre for Medium-Range Weather Forecasts Li, Jiangnan Canadian Center for Climate Modelling Stephens, Graeme Colorado State University Vaillancourt, Paul Environment Canada Oreopoulos, Lazaros JCET/UMBC and NASA/GSFC Siebesma, Pier KNMI Los, Alexander KNMI Clothiaux, Eugene The Pennsylvania State University Randall, David Colorado State University Iacono, Michael Atmospheric & Environmental Research, Inc. Category: Radiation The Monte Carlo Independent Column Approximation (McICA) method for

2

Tests of Monte Carlo Independent Column Approximation in the ECHAM5  

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

Tests of Monte Carlo Independent Column Approximation in the ECHAM5 Tests of Monte Carlo Independent Column Approximation in the ECHAM5 Atmospheric GCM Raisanen, Petri Finnish Meteoroligical Institute Jarvenoja, Simo Finnish Meteorological Institute Jarvinen, Heikki Finnish Meteorological Institute Category: Modeling The Monte Carlo Independent Column Approximation (McICA) was recently introduced as a new approach for parametrizing broadband radiative fluxes in global climate models (GCMs). The McICA allows a flexible description of unresolved cloud structure, and it is unbiased with respect to the full ICA, but its results contain conditional random errors (i.e., noise). In this work, McICA and a stochastic cloud generator have been implemented to the Max Planck Institute for Meteorology's ECHAM5 atmospheric GCM. The

3

Tests of Monte Carlo Independent Column Approximation With a Mixed-Layer Ocean Model  

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

Tests of Monte Carlo Independent Column Tests of Monte Carlo Independent Column Approximation With a Mixed-Layer Ocean Model Petri Simo Järvenoja Heikki Järvinen Räisänen Finnish Meteorological Institute Figure 1. Root-mean-square sampling errors in local instant- aneous total (LW+SW) net flux at the surface and total radiative heating rate for the 1COL, CLDS, and REF approaches. Global rms values are given at the upper right hand corner of the plots. 1. Introduction The Monte Carlo Independent Column Approximation (McICA) separates the description of unresolved cloud structure from the radiative transfer solver very flexible ! unbiased with respect to ICA ! However, the radiative fluxes and heating rates contain conditional random errors ("McICA noise"). ? The topic of this poster: All previous tests of McICA

4

Adaptive Soil Moisture Profile Filtering for Horizontal Information Propagation in the Independent Column-Based CLM2.0  

Science Conference Proceedings (OSTI)

Data assimilation aims to provide an optimal estimate of the overall system state, not only for an observed state variable or location. However, large-scale land surface models are typically column-based and purely random ensemble perturbation of ...

Gabrille J. M. De Lannoy; Paul R. Houser; Niko E. C. Verhoest; Valentijn R. N. Pauwels

2009-06-01T23:59:59.000Z

5

Distillation Column Flooding Predictor  

SciTech Connect

The Flooding Predictor is a patented advanced control technology proven in research at the Separations Research Program, University of Texas at Austin, to increase distillation column throughput by over 6%, while also increasing energy efficiency by 10%. The research was conducted under a U. S. Department of Energy Cooperative Agreement awarded to George Dzyacky of 2ndpoint, LLC. The Flooding Predictor works by detecting the incipient flood point and controlling the column closer to its actual hydraulic limit than historical practices have allowed. Further, the technology uses existing column instrumentation, meaning no additional refining infrastructure is required. Refiners often push distillation columns to maximize throughput, improve separation, or simply to achieve day-to-day optimization. Attempting to achieve such operating objectives is a tricky undertaking that can result in flooding. Operators and advanced control strategies alike rely on the conventional use of delta-pressure instrumentation to approximate the columns approach to flood. But column delta-pressure is more an inference of the columns approach to flood than it is an actual measurement of it. As a consequence, delta pressure limits are established conservatively in order to operate in a regime where the column is never expected to flood. As a result, there is much left on the table when operating in such a regime, i.e. the capacity difference between controlling the column to an upper delta-pressure limit and controlling it to the actual hydraulic limit. The Flooding Predictor, an innovative pattern recognition technology, controls columns at their actual hydraulic limit, which research shows leads to a throughput increase of over 6%. Controlling closer to the hydraulic limit also permits operation in a sweet spot of increased energy-efficiency. In this region of increased column loading, the Flooding Predictor is able to exploit the benefits of higher liquid/vapor traffic that produce increased contact area and lead to substantial increases in separation efficiency which translates to a 10% increase in energy efficiency on a BTU/bbl basis. The Flooding Predictor operates on the principle that between five to sixty minutes in advance of a flooding event, certain column variables experience an oscillation, a pre-flood pattern. The pattern recognition system of the Flooding Predictor utilizes the mathematical first derivative of certain column variables to identify the columns pre-flood pattern(s). This pattern is a very brief, highly repeatable, simultaneous movement among the derivative values of certain column variables. While all column variables experience negligible random noise generated from the natural frequency of the process, subtle pre-flood patterns are revealed among sub-sets of the derivative values of column variables as the column approaches its hydraulic limit. The sub-set of column variables that comprise the pre-flood pattern is identified empirically through in a two-step process. First, 2ndpoints proprietary off-line analysis tool is used to mine historical data for pre-flood patterns. Second, the column is flood-tested to fine-tune the pattern recognition for commissioning. Then the Flooding Predictor is implemented as closed-loop advanced control strategy on the plants distributed control system (DCS), thus automating control of the column at its hydraulic limit.

George E. Dzyacky

2010-11-23T23:59:59.000Z

6

Self-regenerating column chromatography  

DOE Patents (OSTI)

The present invention provides a process for treating both cations and anions by using a self-regenerating, multi-ionic exchange resin column system which requires no separate regeneration steps. The process involves alternation ion-exchange chromatography for cations and anions in a multi-ionic exchange column packed with a mixture of cation and anion exchange resins. The multi-ionic mixed-charge resin column works as a multifunction column, capable of independently processing either cationic or anionic exchange, or simultaneously processing both cationic and anionic exchanges. The major advantage offered by the alternating multifunction ion exchange process is the self-regeneration of the resins. Applications are to separation of nitrogen and sulfur isotopes.

Park, Woo K.

1994-12-31T23:59:59.000Z

7

Approximate diagonalization  

E-Print Network (OSTI)

Abstract. We describe a new method of computing functions of highly non-normal matrices, by using the concept of approximate diagonalization. We formulate a conjecture about its efficiency, and provide both theoretical and numerical evidence in support of the conjecture. We apply the method to compute arbitrary real powers of highly non-normal matrices. Key words. Jordan matrices, ill-posedness, regularization, fractional powers, functional calculus, spectral theory.

E B Davies

2007-01-01T23:59:59.000Z

8

Simplified distillation column controls  

SciTech Connect

A simple, energy efficient method of controlling single or double distillation columns for the production of ethyl alcohol is described. The control system is based on a material balance scheme centered around a thermostat actuated control valve to regulate reflux rate and product purity. Column bottom's levels are automatically regulated by vented suction lines on the pump inlets. Methods of minimizing control input variations are used including column insulation, stillage-to-beer heat exchanger, and a steam pressure regulator.

Badger, P.; Pile, R.; Lightsey, G.

1984-01-01T23:59:59.000Z

9

Bridge Column Inspection 1  

Science Conference Proceedings (OSTI)

... Concept of an Underwater Bridge Column Inspector RoboCrane. The platform is ballast controlled with a rotary joint and attached sonar sensor. ...

2011-08-25T23:59:59.000Z

10

PULSE COLUMN DESIGN  

SciTech Connect

A stagewise approach was used in a theoretical analysis of pulse columns. In the analysis the column was arbitrarily divided into discrete stages comprising that part of the column between two adjacent perforated plates. The operation of the pulse column was described mathematically using material balance equations, and a design method was derived which used two stage lines and two operating lines, one set for the pulse generator upstroke and one set for the downstroke. Assuming equilibrium contact, the effect of recycle in a pulse column was shown to cause a large decrease in the separation obtained as the pulse frequency was increased. Hold-up studies were made using isoamyl alcohol- water, and methyl isobutyl ketone water. The hold-up per cycle of the dispersed phase for both systems was found to be equal to the interstage flow per cycle of the dispersed phase. Hold-up behavior at high frequencies was different for the two systems. Extraction runs were also made using the system methyl isobutyl ketone - acetic acid-water. The effects of recycle were found to result in a drop in column separation efficiency with increased pulse frequency. It was found to be theoretically possible for a column to operate in a pinched-in region even though this is not apparert from an examination of the superficial flow ratio of the two streams being fed to the column Techniques for sampling interstage flow streams in a colurm operating in the mixer-settler region are described. (J.R.D.)

Burkhart, L.E.; Fahien, R.W.

1958-11-01T23:59:59.000Z

11

Nuclear reactor control column  

DOE Patents (OSTI)

The nuclear reactor control column comprises a column disposed within the nuclear reactor core having a variable cross-section hollow channel and containing balls whose vertical location is determined by the flow of the reactor coolant through the column. The control column is divided into three basic sections wherein each of the sections has a different cross-sectional area. The uppermost section of the control column has the greatest cross-sectional area, the intermediate section of the control column has the smallest cross-sectional area, and the lowermost section of the control column has the intermediate cross-sectional area. In this manner, the area of the uppermost section can be established such that when the reactor coolant is flowing under normal conditions therethrough, the absorber balls will be lifted and suspended in a fluidized bed manner in the upper section. However, when the reactor coolant flow falls below a predetermined value, the absorber balls will fall through the intermediate section and into the lowermost section, thereby reducing the reactivity of the reactor core and shutting down the reactor.

Bachovchin, Dennis M. (Plum Borough, PA)

1982-01-01T23:59:59.000Z

12

Presidents s Column  

E-Print Network (OSTI)

Please allow me to begin my final president's column with a bit of venting. As with any industry organization such as SIPES, the more one becomes involved the more one becomes cognizant of public perception and government involvement as it affects the members of the organization. It can be frustrating to be at the receiving end of constant degradation and unappreciation for the professional sacrifices and financial risks one takes for the betterment of mankind. Explain to me why the independent oil and gas companies are consistently herded into the same corral as "Big Oil. " Why mom-andpop oil and gas companies are subject to the same ridicule Alison and David Eyler with First Lady Laura Bush at the opening of the Bush

David A. Eyler

2006-01-01T23:59:59.000Z

13

Society of Independent Professional Earth Scientists Presidents Column  

E-Print Network (OSTI)

The Boom is on anywhere there is liquids-rich shale on private lands in the continental United States. Much as it was for gas from shale five years ago, there is a frenzy of Marc Maddox activity in oil from shale plays now. For those of us in the oil shale basins, it is a wild ride. For those of us in the gas shale plays the bust has come. Talk of a one-hundred year or more supply of natural gas, along with the continued development of associated gas from oil shale development, has glutted the market and left futures traders with the perception of a long-term oversupply of natural gas. Export facilities are years into the future, so the immediate outlook for natural gas is not encouraging. The oil and gas industry has done what it long promised with natural gas. Our industry has said that given the proper incentive (profit), enough natural resources can be developed domestically to drive prices down for the consumer. Good prices for natural gas drove technological innovation that resulted in the current glut of gas. In this case prices have gone a bit too low, and now drilling has slowed in the Barnett, Haynesville, Marcellus and other plays. The market at work: efficiency in action as capital is redeployed to more profitable ventures. Will shale oil follow this same path? That doesnt seem likely, as the United States has required imports to satisfy its

Name See; How I Became An; Marc D. Maddox

2012-01-01T23:59:59.000Z

14

Small-Column Cesium Ion Exchange Elution Testing of Spherical Resorcinol-Formaldehyde  

Science Conference Proceedings (OSTI)

This report summarizes the work performed to evaluate multiple, cesium loading, and elution cycles for small columns containing SRF resin using a simple, high-level waste (HLW) simulant. Cesium ion exchange loading and elution curves were generated for a nominal 5 M Na, 2.4E-05 M Cs, 0.115 M Al loading solution traced with 134Cs followed by elution with variable HNO3 (0.02, 0.07, 0.15, 0.23, and 0.28 M) containing variable CsNO3 (5.0E-09, 5.0E-08, and 5.0E-07 M) and traced with 137Cs. The ion exchange system consisted of a pump, tubing, process solutions, and a single, small ({approx}15.7 mL) bed of SRF resin with a water-jacketed column for temperature-control. The columns were loaded with approximately 250 bed volumes (BVs) of feed solution at 45 C and at 1.5 to 12 BV per hour (0.15 to 1.2 cm/min). The columns were then eluted with 29+ BVs of HNO3 processed at 25 C and at 1.4 BV/h. The two independent tracers allowed analysis of the on-column cesium interaction between the loading and elution solutions. The objective of these tests was to improve the correlation between the spent resin cesium content and cesium leached out of the resin in subsequent loading cycles (cesium leakage) to help establish acid strength and purity requirements.

Brown, Garrett N.; Russell, Renee L.; Peterson, Reid A.

2011-10-21T23:59:59.000Z

15

Single-Column Modeling  

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

C.J. Somerville and S. F. lacobellis C.J. Somerville and S. F. lacobellis Climate Research Division Scripps Institution of Oceanography University of California, San Diego La Jolla, CA 92093-0224 Our project is centered around a computationally efficient and economical one-dimensional (vertical) model, resembling a single column of a general circulation model (GCM) grid, applied to the experimental site of the Atmospheric Radiation Measurement (ARM) Program. The model contains a full set of modern GCM parameterizations of subgrid physical processes. To force the model, the advective terms in the budget equations are specified observationally from operational numerical weather prediction analyses. These analyses, based on four-dimensional data assimilation techniques, provide dynamically consistent wind fields and horizontal gradients

16

Facility location: distributed approximation  

Science Conference Proceedings (OSTI)

In this paper, we initiate the study of the approximability of the facility location problem in a distributed setting. In particular, we explore a trade-off between the amount of communication and the resulting approximation ratio. We give a distributed ... Keywords: distributed approximation, facility location, linear programming, primal-dual algorithms

Thomas Moscibroda; Rogert Wattenhofer

2005-07-01T23:59:59.000Z

17

Efficient independent component analysis  

E-Print Network (OSTI)

Independent component analysis (ICA) has been widely used for blind source separation in many fields such as brain imaging analysis, signal processing and telecommunication. Many statistical techniques based on M-estimates have been proposed for estimating the mixing matrix. Recently several nonparametric methods have been developed but in-depth analysis on asymptotic efficiency has not been available. We analyze ICA using semiparametric theories and propose a straightforward estimate based on the efficient score function by using B-spline approximations. The estimate is asymptotically efficient under moderate conditions and exhibits better performance than standard ICA methods in a variety of simulations.

Chen, Aiyou

2006-01-01T23:59:59.000Z

18

Two-Column Aerosol Project  

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

Climate Research Facility is conducting the Two-Column Aerosol Project (TCAP) at Cape Cod National Seashore. From July 2012 to June 2013, the ARM Mobile Facility-a portable...

19

TWO-COLUMN FORMATTING GUIDE  

Science Conference Proceedings (OSTI)

This is a guide designed to cover the details of paper preparation to ensure uniformity and continuity for two-column ... printed in black and white. It is best to:.

20

Benzene rectifying column performance optimization  

Science Conference Proceedings (OSTI)

Benzene rectifying column control at the actual petroleum refinery is studied. Certain approaches to increase the performance of precise rectification of benzene and toluene are suggested. An algorithm of evaluating the optimal regulation parameters ...

D. A. Smirnova; V. I. Fedorov; N. V. Lisitsyn

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "independent column approximation" 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

Approximation of Stochastic Process  

E-Print Network (OSTI)

May 8, 2012 ... The approximation of stochastic processes by trees is an important topic in ... process ? is replaced by a finitely valued stochastic scenario...

22

Binary distillation column design using mathematica  

Science Conference Proceedings (OSTI)

The accurate design of distillation columns is a very important topic in chemical industry. In this paper, we describe a Mathematica program for the design of distillation columns for binary mixtures. For simplicity, it is assumed that the columns are ...

Akemi Glvez; Andrs Iglesias

2003-06-01T23:59:59.000Z

23

Optimization Online - Column Generation for Extended Formulations  

E-Print Network (OSTI)

Jul 8, 2011 ... We compare numerically a direct handling of the extended formulation, a standard column generation approach, and the ``column-and-row...

24

delta-Approximable Functions  

Science Conference Proceedings (OSTI)

In this paper we study several notions of approximability of functions in the framework of the BSS model. Denoting with M the function computed by a BSS machine M when its comparisons are against - rather than 0, we study ...

Charles Meyssonnier; Paolo Boldi; Sebastiano Vigna

2000-09-01T23:59:59.000Z

25

An approximation trichotomy for Boolean #CSP  

E-Print Network (OSTI)

We give a trichotomy theorem for the complexity of approximately counting the number of satisfying assignments of a Boolean CSP instance. Such problems are parameterised by a constraint language specifying the relations that may be used in constraints. If every relation in the constraint language is affine then the number of satisfying assignments can be exactly counted in polynomial time. Otherwise, if every relation in the constraint language is in the co-clone IM_2 from Post's lattice, then the problem of counting satisfying assignments is complete with respect to approximation-preserving reductions in the complexity class #RH\\Pi_1. This means that the problem of approximately counting satisfying assignments of such a CSP instance is equivalent in complexity to several other known counting problems, including the problem of approximately counting the number of independent sets in a bipartite graph. For every other fixed constraint language, the problem is complete for #P with respect to approximation-prese...

Dyer, Martin; Jerrum, Mark

2007-01-01T23:59:59.000Z

26

Independent directors in China.  

E-Print Network (OSTI)

??This thesis examines the development of the independent director system in China. The newly introduced independent director system is viewed as a revolutionary change to (more)

Ma, Lijun

2009-01-01T23:59:59.000Z

27

Method for packed column separations and purifications  

DOE Patents (OSTI)

The invention encompasses a method of packing and unpacking a column chamber. A mixture of a fluid and a matrix material are introduced through a column chamber inlet so that the matrix material is packed within a column chamber to form a packed column. The column chamber having the column chamber inlet or first port for receiving the mixture further has an outlet port and an actuator port. The outlet port is partially closed for capturing the matrix material and permitting the fluid to flow therepast by rotating relative one to the other of a rod placed in the actuator port. Further rotation relative one to the other of the rod and the column chamber opens the outlet and permits the matrix material and the fluid to flow therethrough thereby unpacking the matrix material from the column chamber.

Holman, David A. (Richland, WA); Bruckner-Lea, Cynthia J. (Richland, WA); Brockman, Fred J. (Kennewick, WA); Chandler, Darrell P. (Richland, WA)

2006-08-15T23:59:59.000Z

28

Modeling Tropical Precipitation in a Single Column  

Science Conference Proceedings (OSTI)

A modified formulation of the traditional single column model for representing a limited area near the equator is proposed. This formulation can also be considered a two-column model in the limit as the area represented by one of the columns ...

Adam H. Sobel; Christopher S. Bretherton

2000-12-01T23:59:59.000Z

29

On Safe Tractable Approximations of Chance Constrained Linear ...  

E-Print Network (OSTI)

Faculty of Industrial Engineering and Management, Technion Israel Institute of Technology, ... its scenario approximation is the random optimization program min x. { f0(x) : fi(x ..... We generate a training sample of N independent realizations.

30

THE VALVE-ACTUATED PULSE COLUMN DESIGN AND OPERATION  

SciTech Connect

A countercurrent extraction column is described which employs timed solenoid valves and pressurized feeds to provide a pulsing action to disperse the phases. The steps in the pulsing cycle are independent and thus provide greater separation of the operating variables than is possible with conventional pulse columns. The column described is particularly useful as a resesrch tool for the study of extraction mechanism although a larger installation operating on the same principles should be quite workable. The 4-stage-cycle or mixersettler type column operation has an inherent advantage in that the rapid coalescence and redispersion of phases are believed to lead to greater extraction than simple movement of a dispersed phase through a continuous medium. In addition, the sharp pulse provided should produce greater turbulence than the more conventional pulsing arrangement. Some results of operation on the extraction and stripping of uranyl nitrate using tributyl phosphate as a solvent are included. These data correspond to Metal Recovery and Erex type systems. (auth)

Burger, L.L.; Clark, L.H.

1951-12-01T23:59:59.000Z

31

Property:Water Column Location | Open Energy Information  

Open Energy Info (EERE)

Column Location Jump to: navigation, search Property Name Water Column Location Property Type Text Pages using the property "Water Column Location" Showing 1 page using this...

32

INDEPENDENT COST REVIEW (ICR) and INDEPENDENT COST ESTIMATE ...  

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

INDEPENDENT COST REVIEW (ICR) and INDEPENDENT COST ESTIMATE (ICE) Standard Operating Procedures INDEPENDENT COST REVIEW (ICR) and INDEPENDENT COST ESTIMATE (ICE) Standard Operating...

33

An approximation trichotomy for Boolean #CSP  

E-Print Network (OSTI)

We give a trichotomy theorem for the complexity of approximately counting the number of satisfying assignments of a Boolean CSP instance. Such problems are parameterised by a constraint language specifying the relations that may be used in constraints. If every relation in the constraint language is affine then the number of satisfying assignments can be exactly counted in polynomial time. Otherwise, if every relation in the constraint language is in the co-clone IM2 from Posts lattice, then the problem of counting satisfying assignments is complete with respect to approximation-preserving reductions in the complexity class #RH?1. This means that the problem of approximately counting satisfying assignments of such a CSP instance is equivalent in complexity to several other known counting problems, including the problem of approximately counting the number of independent sets in a bipartite graph. For every other fixed constraint language, the problem is complete for #P with respect to approximation-preserving reductions, meaning that there is no fully polynomial randomised approximation scheme for counting satisfying assignments unless NP=RP. 1

Martin Dyer; Leslie Ann Goldberg; Mark Jerrum

2007-01-01T23:59:59.000Z

34

Targeted Technology Transfer to US Independents  

Science Conference Proceedings (OSTI)

The Petroleum Technology Transfer Council (PTTC) was established by domestic crude oil and natural gas producers, working in conjunction with the Independent Petroleum Association of America (IPAA), the U.S. Department of Energy (DOE) and selected universities, in 1994 as a national not-for-profit organization. Its goal is to transfer Exploration and Production (E&P) technology to the domestic upstream petroleum industry, in particular to the small independent operators. PTTC connects producers, technology providers and innovators, academia, and university/industry/government research and development (R&D) groups. From inception PTTC has received federal funding through DOE's oil and natural gas program managed by the National Energy Technology Laboratory (NETL). With higher funding available in its early years, PTTC was able to deliver well more than 100 workshops per year, drawing 6,000 or more attendees per year. Facing the reality of little or no federal funding in the 2006-2007 time frame, PTTC and the American Association of Petroleum Geologists (AAPG) worked together for PTTC to become a subsidiary organization of AAPG. This change brings additional organizational and financial resources to bear for PTTC's benefit. PTTC has now been 'powered by AAPG' for two full fiscal years. There is a clear sense that PTTC has stabilized and is strengthening its regional workshop and national technology transfer programs and is becoming more entrepreneurial in exploring technology transfer opportunities beyond its primary DOE contract. Quantitative accomplishments: PTTC has maintained its unique structure of a national organization working through Regional Lead Organizations (RLOs) to deliver local, affordable workshops. During the contract period PTTC consolidated from 10 to six regions efficiency and alignment with AAPG sections. The number of workshops delivered by its RLOs during the contract period is shown below. Combined attendance over the period was approximately 32,000, 70% of whom were repeat attendees. Participant feedback established that 40% of them said they had applied a technology they learned of through PTTC. Central/Eastern Gulf Univ. of Alabama, LSU Center for Energy Studies 77 Eastern West Virginia University, Illinois Geological Survey, W. Michigan Univ. 99 Midcontinent University of Kansas, University of Tulsa, Okla. Geological Survey (past) 123 Rocky Mountains Colorado School of Mines 147 Texas/SE New Mexico Bureau of Economic Geology, U. of Texas at Austin 85 West Coast Conservation Committee of California O&G Producers, Univ. So. Cal. (past) 54 At the national level HQ went from an office in Houston to a virtual office in the Tulsa, Okla. area with AAPG providing any physical assets required. There are no employees, rather several full time and several part time contractors. Since inception, PTTC has produced quarterly and mailed the 16-page Network News newsletter. It highlights new advances in technology and has a circulation of 19,000. It also produces the Tech Connections Column in The American Oil & Gas Reporter, with a circulation of 13,000. On an approximate three-week frequency, the electronic Email Tech Alert goes out to 9,000 readers. The national staff also maintains a central website with information of national interest and individual sections for each of the six regions. The national organization also provides legal and accounting services, coordinates the RLO activities, exhibits at at least major national and other meetings, supports the volunteer Board as it provides strategic direction, and is working to restore the Producer Advisory Groups to bolster the regional presence. Qualitative Value: Three qualitative factors confirm PTTC's value to the domestic O&G producing industry. First, AAPG was willing to step in and rescue PTTC, believing it was of significant interest to its domestic membership and of potential value internationally. Second, through a period of turmoil and now with participant fees dramatically increased, industry participants 'keep coming back' to wo

E. Lance Cole

2009-09-30T23:59:59.000Z

35

geo column legal.ai  

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

Teapot Dome Teapot Dome Geologic Column Natrona County, Wyoming T 38 & 39 N R 78 W Period Formation L i t h o l o g y T h i c k n e s s D e p t h ( f t ) P r o d u c t i v e Quaternary Alluvium Fox Hills Sandstone Lewis Shale Niobrara Shale Carlisle Shale Mesaverde Group Morrison Mowry Shale Muddy Sandstone Thermopolis Shale Dakota Lakota Goose Egg Tensleep Amsden Madison Undifferentiated Granite Steele Shale Frontier Sundance Chugwater Group Teapot Ss "Pumpkin Buttes shale" Parkman Ss Sussex Ss Shannon Ss 1st Wall Creek 2nd Wall Creek 3rd Wall Creek Upper Lower Crow Mountain Alcova LS Red Peak Outcropping units 195 515 635 1990 2440 3840 3975 4060 4070 4340 4435 4585 4665 4685 5205 5525 5845 6005 6305 7085 3825 3595 3330 3325 3150 3085 2840 2680 0-50 600 100 50 325 470 1355 195 30 290 120 480 160 245 65 240 450 265 230 15 135 85 5 175 80 150 95 270 10 160 320 320 520

36

ORISE: Independent verification  

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

Independent verification Independent verification ORISE techinician performs environmental scanning The Oak Ridge Institute for Science and Education (ORISE) performs independent environmental assessments and verification to determine the effectiveness of radiological cleanup at decontamination and decommissioning (D&D) projects across the United States. Since 1980, ORISE has performed independent verification at more than 500 sites in 42 states and the District of Columbia. As the primary independent verification contractor for all U.S. Department of Energy (DOE) cleanup projects and the only verification contractor for the U.S. Nuclear Regulatory Commission (NRC), we validate that soil, water and structures are within established state and federal release criteria, and can be safely designated for public use.

37

Lagrangean relaxation with clusters and column generation for the manufacturer's pallet loading problem  

Science Conference Proceedings (OSTI)

We consider in this paper a new lagrangean relaxation with clusters for the Manufacturer's Pallet Loading Problem (MPLP). The relaxation is based on the MPLP formulated as a Maximum Independent Set Problem (MISP) and represented in a conflict graph that ... Keywords: Column generation, Lagrangean relaxation, Pallet loading

Glaydston Mattos Ribeiro; Luiz Antonio Nogueira Lorena

2007-09-01T23:59:59.000Z

38

Level: National Data; Row: NAICS Codes; Column: Floorspace and Buildings;  

Gasoline and Diesel Fuel Update (EIA)

9.1 Enclosed Floorspace and Number of Establishment Buildings, 2010; 9.1 Enclosed Floorspace and Number of Establishment Buildings, 2010; Level: National Data; Row: NAICS Codes; Column: Floorspace and Buildings; Unit: Floorspace Square Footage and Building Counts. Approximate Approximate Average Enclosed Floorspace Average Number Number of All Buildings Enclosed Floorspace of All Buildings of Buildings Onsite NAICS Onsite Establishments(b) per Establishment Onsite per Establishment Code(a) Subsector and Industry (million sq ft) (counts) (sq ft) (counts) (counts) Total United States 311 Food 1,115 13,271 107,293.7 32,953 3.1 3112 Grain and Oilseed Milling 126 602 443,178.6 5,207 24.8 311221 Wet Corn Milling 14 59 270,262.7 982 18.3 31131 Sugar Manufacturing

39

Scaled hydrogenic approximation wavefunctions. [Hartree-Fock approximation  

DOE Green Energy (OSTI)

Although widespread use of computer codes for the solution of Schrodinger equations makes available numerical Hartree-Fock model radial wave functions, there remains persistant interest in simple analytic expressions for atomic wave functions. One such frequency favored approach employs hydrogenic functions, suitably scaled, as approximate wave functions. The following note displays typical inaccuracies to be expected from such approximations. 13 references.

Shore, B.W.

1979-09-01T23:59:59.000Z

40

On the Beta Plane Approximation  

Science Conference Proceedings (OSTI)

The beta plane approximation as it is usually derived suffers from the difficulty that it is only valid if the quasi-geostrophic approximation is made. It is not valid for the underlying momentum and continuity equations. The problem in the ...

W. T. M. Verkley

1990-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "independent column approximation" 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

Dynamic Stabilization of Atmospheric Single Column Models  

Science Conference Proceedings (OSTI)

Single column models (SCMs) provide an economical framework for assessing the sensitivity of atmospheric temperature and humidity to natural and imposed perturbations, and also for developing improved representations of diabatic processes in ...

John W. Bergman; Prashant D. Sardeshmukh

2004-03-01T23:59:59.000Z

42

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

E-Print Network (OSTI)

Nov 14, 2010 ... Simultaneous Column-and-Row Generation for Large-Scale Linear Programs with Column-Dependent- ... Entry Last Modified: 05/17/2012.

43

Independent technical review, handbook  

SciTech Connect

Purpose Provide an independent engineering review of the major projects being funded by the Department of Energy, Office of Environmental Restoration and Waste Management. The independent engineering review will address questions of whether the engineering practice is sufficiently developed to a point where a major project can be executed without significant technical problems. The independent review will focus on questions related to: (1) Adequacy of development of the technical base of understanding; (2) Status of development and availability of technology among the various alternatives; (3) Status and availability of the industrial infrastructure to support project design, equipment fabrication, facility construction, and process and program/project operation; (4) Adequacy of the design effort to provide a sound foundation to support execution of project; (5) Ability of the organization to fully integrate the system, and direct, manage, and control the execution of a complex major project.

Not Available

1994-02-01T23:59:59.000Z

44

The Subinertial Mixed Layer Approximation  

Science Conference Proceedings (OSTI)

The density of the mixed layer is approximately uniform in the vertical but has dynamically important horizontal gradients. These nonuniformities in density result in a vertically sheared horizontal pressure gradient. Subinertial motions balance ...

W. R. Young

1994-08-01T23:59:59.000Z

45

The Quasi-Hydrostatic Approximation  

Science Conference Proceedings (OSTI)

Second-order expansion of the aspect ratio gives rise to simple equations with a quasi-hydrostatic approximation that perform far better than the classical hydrostatic system in the simulation of moist convection in a mesoscale model. It also ...

Isidoro Orlanski

1981-03-01T23:59:59.000Z

46

IEAB Independent Analysis Board  

E-Print Network (OSTI)

. On the Lemhi River, water transactions projects stipulated a minimum instream flow. Irrigators maintain be granted to public entities for future beneficial uses or to maintain minimum stream flows or quality­Effectiveness of Improved Irrigation Efficiency and Water Transactions for Instream Flow for Fish1 Independent Economic

47

Independent Oversight Program  

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

Independent Oversight Program Independent Oversight Program Home Office of Security and Cyber Evaluations Office of Safety and Emergency Management Evaluations Guidance Documents › Security and Cyber Evaluations › Safety and Emergency Management Evaluations Reports › Physical Security › Cyber Security › Safety and Emergency Management Evaluations Reports › Prior Environment, Safety and Health Evaluations Reports ›Prior Emergency Management Evaluations Reports Contact Us HSS Logo Welcome to the Independent Oversight Program The Independent Oversight Program is implemented by the Office of Health, Safety and Security's (HSS) Office of Enforcement and Oversight. The mission of this program is to provide DOE line management, Congress, and other stakeholders with an independent evaluation of the effectiveness of DOE policy and line management performance in safety and security, and other critical areas as directed by the Secretary of Energy. The Office of Enforcement and Oversight performs this mission by conducting activity, facility, site, and Department-wide performance-based assessments that are designed to verify that the Department's safeguards and security interests are protected, that the Department can effectively respond to emergencies, and that Departmental employees, the public, and the environment are protected from hazardous operations and materials. These assessments complement line management's responsibility for security and safety program oversight and self-assessments. The outcome of these assessments are reports that provide information and analysis regarding the effectiveness, vulnerabilities, and trends in DOE safety and security programs, and identify issues requiring corrective action as well as recommended areas for improvement.

48

THERMAL MODELING ANALYSIS OF CST MEDIA IN THE SMALL COLUMN ION EXCHANGE PROJECT  

SciTech Connect

Models have been developed to simulate the thermal characteristics of Crystalline Silicotitanate (CST) ion exchange media fully loaded with radioactive cesium in a column configuration and distributed within a waste storage tank. This work was conducted to support the Small Column Ion Exchange (SCIX) program which is focused on processing dissolved, high-sodium salt waste for the removal of specific radionuclides (including Cs-137, Sr-90, and actinides) within a High Level Waste (HLW) storage tank at the Savannah River Site. The SCIX design includes CST columns inserted and supported in the tank top risers for cesium removal. Temperature distributions and maximum temperatures across the column were calculated with a focus on process upset conditions. A two-dimensional computational modeling approach for the in-column ion-exchange domain was taken to include conservative, bounding estimates for key parameters such that the results would provide the maximum centerline temperatures achievable under the design configurations using a feed composition known to promote high cesium loading on CST. One salt processing scenario includes the transport of the loaded (and possibly ground) CST media to the treatment tank floor. Therefore, additional thermal modeling calculations were conducted using a three-dimensional approach to evaluate temperature distributions for the entire in-tank domain including distribution of the spent CST media either as a mound or a flat layer on the tank floor. These calculations included mixtures of CST with HLW sludge or loaded Monosodium Titanate (MST) media used for strontium/actinide sorption. The current full-scale design for the CST column includes one central cooling pipe and four outer cooling tubes. Most calculations assumed that the fluid within the column was stagnant (i.e. no buoyancy-induced flow) for a conservative estimate. A primary objective of these calculations was to estimate temperature distributions across packed CST beds immersed in waste supernate or filled with dry air under various accident scenarios. Accident scenarios evaluated included loss of salt solution flow through the bed (a primary heat transfer mechanism), inadvertent column drainage, and loss of active cooling in the column. The calculation results showed that for a wet CST column with active cooling through one central and four outer tubes and 35 C ambient external air, the peak temperature for the fully-loaded column is about 63 C under the loss of fluid flow accident, which is well below the supernate boiling point. The peak temperature for the naturally-cooled (no active, engineered cooling) wet column is 156 C under fully-loaded conditions, exceeding the 130 C boiling point. Under these conditions, supernate boiling would maintain the column temperature near 130 C until all supernate was vaporized. Without active engineered cooling and assuming a dry column suspended in unventilated air at 35 C, the fully-loaded column is expected to rise to a maximum of about 258 C due to the combined loss-of coolant and column drainage accidents. The modeling results demonstrate that the baseline design using one central and four outer cooling tubes provides a highly efficient cooling mechanism for reducing the maximum column temperature. Results for the in-tank modeling calculations clearly indicate that when realistic heat transfer boundary conditions are imposed on the bottom surface of the tank wall, as much as 450 gallons of ground CST (a volume equivalent to two ion exchange processing cycles) in an ideal hemispherical shape (the most conservative geometry) can be placed in the tank without exceeding the 100 C wall temperature limit. Furthermore, in the case of an evenly-distributed flat layer, the tank wall reaches the temperature limit after the ground CST material reaches a height of approximately 8 inches.

Lee, S.

2010-11-01T23:59:59.000Z

49

Integrated Thermal and Hydraulic Analysis of Distillation Columns  

E-Print Network (OSTI)

This paper outlines the implementation of column thermal and hydraulic analysis in a simulation environment. The methodology is described using a separations example. Column Thermal Analysis has been discussed in the literature extensively. The paper outlines how bringing together the column thermal and hydraulics analysis provides significant additional insights to help screen the options for distillation column revamps.

Samant, K.; Sinclair, I.; Keady, G.

2002-04-01T23:59:59.000Z

50

The Complexity of Approximating Bounded-Degree Boolean #CSP  

E-Print Network (OSTI)

The degree of a CSP instance is the maximum number of times that a variable may appear in the scope of constraints. We consider the approximate counting problem for Boolean CSPs with bounded-degree instances for constraint languages containing the two unary constant relations {0} and {1}. When the maximum degree is at least 25 we obtain a complete classification of the complexity of this problem. It is exactly solvable in polynomial-time if every relation in the constraint language is affine. It is equivalent to the problem of approximately counting independent sets in bipartite graphs if every relation can be expressed as conjunctions of {0}, {1} and binary implication. Otherwise, there is no FPRAS unless NP=RP. For lower degree bounds, additional cases arise in which the complexity is related to the complexity of approximately counting independent sets in hypergraphs.

Dyer, Martin; Jalsenius, Markus; Richerby, David

2009-01-01T23:59:59.000Z

51

Heat pipe transient response approximation.  

SciTech Connect

A simple and concise routine that approximates the response of an alkali metal heat pipe to changes in evaporator heat transfer rate is described. This analytically based routine is compared with data from a cylindrical heat pipe with a crescent-annular wick that undergoes gradual (quasi-steady) transitions through the viscous and condenser boundary heat transfer limits. The sonic heat transfer limit can also be incorporated into this routine for heat pipes with more closely coupled condensers. The advantages and obvious limitations of this approach are discussed. For reference, a source code listing for the approximation appears at the end of this paper.

Reid, R. S. (Robert Stowers)

2001-01-01T23:59:59.000Z

52

Independent Health Studies  

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

Independent Health Studies Independent Health Studies A study of cancer rates within a 15-mile radius of Brookhaven National Laboratory found no relationship between Brookhaven Lab and cancer. Suffolk County Task Force Report (PDF) New York State Department of Health Cancer Registry Report (PDF) Report of the Rhabdomyosarcoma Task Force (PDF) According to a 1998 report by the Suffolk County Environmental Task Force on the Laboratory, "cancer rates of all types of cancers [the task force] studied are not elevated near BNL" for the years 1979-93. Task Force Chair Roger Grimson, a biostatistician and an associate professor at the State University of New York at Stony Brook, concluded in a Newsday article at that time, "There is no link between Brookhaven National Lab and

53

ARM - Field Campaign - Two-Column Aerosol Project (TCAP)  

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

govCampaignsTwo-Column Aerosol Project (TCAP) govCampaignsTwo-Column Aerosol Project (TCAP) Campaign Links TCAP website Related Campaigns Two-Column Aerosol Project (TCAP): Field Evaluation of Real-time Cloud OD Sensor TWST 2013.04.15, Scott, AMF Two-Column Aerosol Project (TCAP): Winter Aerosol Effects on Cloud Formation 2013.02.04, Cziczo, AMF Two-Column Aerosol Project (TCAP): CU GMAX-DOAS Deployment 2012.07.15, Volkamer, AMF Two-Column Aerosol Project (TCAP): Aerosol Light Extinction Measurements 2012.07.15, Dubey, AMF Two-Column Aerosol Project (TCAP): Aerial Campaign 2012.07.07, Berg, AAF Two-Column Aerosol Project (TCAP): Aerodynamic Particle Sizer 2012.07.01, Berg, AMF Two-Column Aerosol Project (TCAP): KASPRR Engineering Tests 2012.07.01, Mead, AMF Two-Column Aerosol Project (TCAP): Airborne HSRL and RSP Measurements

54

Thermal Analysis of LANL Ion Exchange Column  

Science Conference Proceedings (OSTI)

This document reports results from an ion exchange column heat transfer analysis requested by Los Alamos National Laboratory (LANL). The object of the analysis is to demonstrate that the decay heat from the Pu-238 will not cause resin bed temperatures to increase to a level where the resin significantly degrades.

Laurinat, J.E.

1999-06-16T23:59:59.000Z

55

Hydrogen Beyond the Classic Approximation  

E-Print Network (OSTI)

The classical nucleus approximation is the most frequently used approach for the resolution of problems in condensed matter physics.However, there are systems in nature where it is necessary to introduce the nuclear degrees of freedom to obtain a correct description of the properties.Examples of this, are the systems with containing hydrogen.In this work, we have studied the resolution of the quantum nuclear problem for the particular case of the water molecule.The Hartree approximation has been used, i.e. we have considered that the nuclei are distinguishable particles.In addition, we have proposed a model to solve the tunneling process, which involves the resolution of the nuclear problem for configurations of the system away from its equilibrium position

Scivetti, I

2003-01-01T23:59:59.000Z

56

INDEPENDENT COST REVIEW (ICR)  

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

COST REVIEW (ICR) COST REVIEW (ICR) and INDEPENDENT COST ESTIMATE (ICE) STANDARD OPERATING PROCEDURES (SOP) Revision 1 DEPARTMENT OF ENERGY (DOE) OFFICE OF ACQUISITION AND PROJECT MANAGEMENT (OAPM) September 2013 SUMMARY OF UPDATES: This revision includes the following significant changes since the December 2011 SOP release: 1. The original SOP discussed how an EIR and an ICE could be executed in tandem, but since we are no longer advocating this approach the ICE process has been completely separated from the EIR process and references to EIRs have been removed. 2. Section 1 adds a reference to Public Law 2055 reflecting that we must now, as a matter of law, perform an ICE at CD-3 for projects with a TPC over $100 million. 3. Section 2 notes that DOE Programs must now pay for ICRs and ICEs and reflects that PARS II must be

57

INDEPENDENT COST REVIEW (ICR)  

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

COST REVIEW (ICR) COST REVIEW (ICR) and INDEPENDENT COST ESTIMATE (ICE) STANDARD OPERATING PROCEDURES (SOP) Revision 1 DEPARTMENT OF ENERGY (DOE) OFFICE OF ACQUISITION AND PROJECT MANAGEMENT (OAPM) September 2013 SUMMARY OF UPDATES: This revision includes the following significant changes since the December 2011 SOP release: 1. The original SOP discussed how an EIR and an ICE could be executed in tandem, but since we are no longer advocating this approach the ICE process has been completely separated from the EIR process and references to EIRs have been removed. 2. Section 1 adds a reference to Public Law 2055 reflecting that we must now, as a matter of law, perform an ICE at CD-3 for projects with a TPC over $100 million. 3. Section 2 notes that DOE Programs must now pay for ICRs and ICEs and reflects that PARS II must be

58

BNL | Two-Column Aerosol Program (TCAP)  

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

Two-Column Aerosol Project (TCAP) Two-Column Aerosol Project (TCAP) There remain many key knowledge gaps despite advances in the scientific understanding of how aerosols and clouds evolve and affect climate. Many climatically important processes depend on particles that undergo continuous changes within a size range spanning a few nanometers to a few microns, and with compositions that consist of a variety of carbonaceous materials, soluble inorganic salts and acids and insoluble mineral dust. Primary particles, which are externally-mixed when emitted, are subject to coagulation and chemical changes associated with the condensation of semi-volatile gases to their surface resulting in a spectrum of compositions or mixing-states with a range of climate-affecting optical and hygroscopic properties. The numerical treatments of aerosol transformation

59

Equivalence of Local Potential Approximations  

E-Print Network (OSTI)

In recent papers it has been noted that the local potential approximation of the Legendre and Wilson-Polchinski flow equations give, within numerical error, identical results for a range of exponents and Wilson-Fisher fixed points in three dimensions, providing a certain ``optimised'' cutoff is used for the Legendre flow equation. Here we point out that this is a consequence of an exact map between the two equations, which is nothing other than the exact reduction of the functional map that exists between the two exact renormalization groups. We note also that the optimised cutoff does not allow a derivative expansion beyond second order.

Tim R. Morris

2005-03-21T23:59:59.000Z

60

Appraisal Process Protocols, Independent Oversight - November...  

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

Appraisal Process Protocols, Independent Oversight - November 2012 Appraisal Process Protocols, Independent Oversight - November 2012 November 2012 Updated Independent Oversight...

Note: This page contains sample records for the topic "independent column approximation" 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

Racing for conditional independence inference  

Science Conference Proceedings (OSTI)

In this article, we consider the computational aspects of deciding whether a conditional independence statement t is implied by a list of conditional independence statements L using the implication related to the method of structural imsets. ...

Remco R. Bouckaert; Milan Studen

2005-07-01T23:59:59.000Z

62

Query execution in column-oriented database systems  

E-Print Network (OSTI)

There are two obvious ways to map a two-dimension relational database table onto a one-dimensional storage interface: store the table row-by-row, or store the table column-by-column. Historically, database system implementations ...

Abadi, Daniel J

2008-01-01T23:59:59.000Z

63

Independent Oversight Program - Guidance Documents  

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

Independent Oversight Home Sub Offices Security Evaluations Cyber Security Evaluations Emergency Management Oversight Environment, Safety and Health Evaluations...

64

Cross flow cyclonic flotation column for coal and minerals beneficiation  

SciTech Connect

An apparatus and process for the separation of coal from pyritic impurities using a modified froth flotation system. The froth flotation column incorporates a helical track about the inner wall of the column in a region intermediate between the top and base of the column. A standard impeller located about the central axis of the column is used to generate a centrifugal force thereby increasing the separation efficiency of coal from the pyritic particles and hydrophillic tailings.

Lai, Ralph W. (Upper St. Clair, PA); Patton, Robert A. (Pittsburgh, PA)

2000-01-01T23:59:59.000Z

65

Cross flow flotation column for coal and minerals beneficiation  

DOE Patents (OSTI)

An apparatus and process are disclosed for the separation of coal from pyritic impurities using a modified froth flotation system. The froth flotation column incorporates a helical track about the inner wall of the column in a region intermediate between the top and base of the column. A standard impeller located about the central axis of the column is used to generate a centrifugal force thereby increasing the separation efficiency of coal from the pyritic particles and hydrophilic tailings.

Lai, Ralph W.; Patton, Robert A.

1997-12-01T23:59:59.000Z

66

INDEPENDENT ELECTRICITY SYSTEM OPERATOR  

E-Print Network (OSTI)

The Board of Directors of the Independent Electricity System Operator (IESO) has adopted this Charter as part of its commitment to high standards of corporate governance in pursuing the objects of the IESO set out in the Electricity Act, 1998. This Charter describes the Boards mandate, accountability and composition, and sets out a specific Code of Conduct for the Board. More detailed information about the IESOs corporate governance is set out in the Governance and Structure By?law and in corporate policies, notably the Terms of Reference for a Director. The activities of the Board and its Committees are formally recorded in minutes of meetings. MANDATE The Board shall manage and supervise the management of the IESOs business and affairs and shall provide insight, input into and oversight of the development of the IESOs strategic direction. More specifically, the Boards mandate includes: periodically reviewing with Management: the strategic environment; the emergence of new risks and opportunities and the implications of such risks and opportunities for the IESOs strategic direction; and the establishment and operation of the IESO?administered markets to promote the purposes of the Electricity Act, 1998 including, without limitation, making market rules and amendments thereto; approving strategic plans that take into account the IESOs major risks and opportunities and overseeing the management of those risks; 2 appointing, monitoring and assessing the performance of the Chief Executive

unknown authors

2009-01-01T23:59:59.000Z

67

Control of binary distillation column using fuzzy PI controllers  

Science Conference Proceedings (OSTI)

In this paper the automatic control of a binary distillation column is described. This control is done with fuzzy logic controllers. After a short explanation of the function and dynamic of a binary distillation column, it's operating and control strategies ... Keywords: binary distillation column, fuzzy inference system, simulation

Shahram Javadi; Jabber Hosseini

2009-08-01T23:59:59.000Z

68

Application for testing control configurations of binary distillation columns  

Science Conference Proceedings (OSTI)

The paper addresses the problem of testing various control configurations for binary distillation columns. Analyzing from plantwide control point of view the place of distillation column within the plant, the result will be the best control configuration. ... Keywords: composition control, distillation columns, dynamic simulations, plantwide control

Sanda Mihalache; Marian Popescu

2007-08-01T23:59:59.000Z

69

DOE Awards WIPP Independent Oversight Contract  

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

Anne Wickham Anne Wickham (513) 246-0463) Dennis Hurtt (505) 234-7327 http://www.wipp.ws U.S. Department of Energy Carlsbad Field Office Waste Isolation Pilot Plant P.O. Box 3090 Carlsbad, New Mexico 88221 DOENews For Immediate Release DOE Awards WIPP Independent Oversight Contract Cincinnati, Ohio, October 7, 2005 - Today the U.S. Department of Energy (DOE) announced the award of the Waste Isolation Pilot Plant (WIPP) Independent Oversight contract to Pecos Management Services, Incorporated (Pecos) of Albuquerque, N.M. The contract is effective October 7, 2005, and contains a one year base with four one-year options. It is valued at approximately $4.5 million over the five-year period. Pecos has teamed with the Institute for Regulatory Science of Columbia, Md., to form the

70

A new post-column reactor-laser induced fluorescence detector for capillary electrophoresis  

Science Conference Proceedings (OSTI)

Capillary zone electrophoresis (CZE), a powerful separation method based on the differential migration of charged species under the influence of an electric field, has been widely used for separations covering from small ions to big biomolecules. Chapter 1 describes the method, then discusses detection of the separated analytes by laser induced fluorescence and by chemical derivatization, and the use of O-phthaldialdehyde (OPA) as a post-column reagent. Chapter 2 describes a post-column reactor which uses two narrow bore capillaries connected coaxially. This reactor differs from other coaxial reactors in terms of capillary dimensions, reagent flow control, ease of construction and most importantly, better limits of detection. The derivatization reagent is electroosmotically driven into the reaction capillary and the reagent flow rate is independently controlled by a high voltage power supply. Amino acids, amines and proteins, derivatized by OPA/2-mercaptoethanol using this post-column reactor coupled with LIF detection, show low attomole mass limits of detection, and for the first time, the authors demonstrate single cell capability with a post-column derivatization scheme. The single cell capability shows that this reactor could find applications in assaying non-fluorescent or electrochemically inactive components in individual biological cells in the future.

Zhang Liling

1996-01-02T23:59:59.000Z

71

An accurate approximation to the average error probability of cooperative diversity in Nakagami-m fading  

Science Conference Proceedings (OSTI)

A new approximation to the average symbol error rate of cooperative diversity is derived for independent and non-identically distributed Nakagami-m fading channels. The new approximation has the same computational complexity as previous lower bounds ... Keywords: Nakagami, cooperative diversity, fading channels, symbol error rate

Norman C. Beaulieu; Yunfei Chen

2010-09-01T23:59:59.000Z

72

Hydrogen isotope exchange in metal hydride columns  

DOE Green Energy (OSTI)

Several metal hydrides were shown to act as chromatographic media for hydrogen isotopes. The procedure was to equilibrate a column of hydride with flowing hydrogen, inject a small quantity of tritium tracer, and observe its elution behavior. Characteristic retention times were found. From these and the extent of widening of the tritium band, the heights equivalent to a theoretical plate could be calculated. Values of around 1 cm were obtained. The following are the metals whose hydrides were studied, together with the temperature ranges in which chromatographic behavior was observed: vanadium, 0 to 70/sup 0/C; zirconium, 500 to 600/sup 0/C; LaNi/sub 5/, -78 to +30/sup 0/C; Mg/sub 2/Ni, 300 to 375/sup 0/C; palladium, 0 to 70/sup 0/C. A dual-temperature isotope separation process based on hydride chromatography was demonstrated. In this, a column was caused to cycle between two temperatures while being supplied with a constant stream of tritium-traced hydrogen. Each half-cycle was continued until ''breakthrough,'' i.e., until the tritium concentration in the effluent was the same as that in the feed. Up to that point, the effluent was enriched or depleted in tritium, by up to 20%.

Wiswall, R; Reilly, J; Bloch, F; Wirsing, E

1977-11-21T23:59:59.000Z

73

Cumulative mass approach for column testing  

Science Conference Proceedings (OSTI)

A cumulative mass approach for laboratory column testing using an analytical solution for miscible transport through soil is presented. The cumulative mass approach differs from the more traditional approach for column testing in that the analysis of the measured data is in terms of mass of solute instead of solute concentration. The potential advantages of the cumulative mass approach are: (1) The influence of increment in effluent sample volume on the measured concentrations is removed from consideration; (2) the effluent sampling procedure is less labor-intensive, and therefore potentially more cost-effective; and (3) the retardation factor and effective porosity can be evaluated directly from plots of the test results. A comparison of analyses of measured data based on the cumulative mass approach with the more traditional concentration-based approach indicates slight differences (less than 3%) in the regressed values of the dispersion coefficient and retardation factor. These differences are attributed to greater scatter in the data for the more traditional approach and to slight errors involved in the traditional approach due to plotting the average, incremental concentrations at the pore volumes of flow corresponding to the middle of the sampling interval.

Shackelford, C.D. [Colorado State Univ., Fort Collins, CO (United States)] [Colorado State Univ., Fort Collins, CO (United States)

1995-10-01T23:59:59.000Z

74

Comparison between a spray column and a sieve tray column operating as liquid-liquid heat exchangers  

DOE Green Energy (OSTI)

The performance of a spray column and a sieve tray column was compared as a liquid-liquid heat exchanger. In carrying out these studies a 15.2 cm (6.0 in.) diameter column, 183 cm (6.0 ft) tall was utilized. The performance of the spray column as a heat exchanger was shown to correlate with the model of Letan-Kehat which has as a basis that the heat transfer is dominated by the wakeshedding characteristics of the drops over much of the column length. This model defines several hydrodynamic zones along the column of which the wake formation zone at the bottom appears to have the most efficient heat transfer. The column was also operated with four perforated plates spaced two column diameters apart in order to take advantage of the wake formation zone heat transfer. The plates induce coalescence of the dispersed phase and reformation of the drops, and thus cause a repetition of the wake formation zone. It is shown that the overall volumetric heat transfer coefficient in a perforated plate column is increased by a minimum of eleven percent over that in a spray column. A hydrodynamic model that predicts the performance of a perforated plate column is suggested.

Keller, A.; Jacobs, H.R.; Boehm, R.F.

1980-12-01T23:59:59.000Z

75

Cometabolic degradation of trichloroethylene in a bubble column bioscrubber  

SciTech Connect

A bubble column bioreactor was used as bioscrubber to carry out a feasibility study for the cometabolic degradation of trichloroethylene (TCE). Phenol was used as cosubstrate and inducer. The bioreactor was operated like a conventional chemostat with regard to the cosubstrate and low dilution rates were used to minimize the liquid outflow. TCE degradation measurements were carried out using superficial gas velocities between 0.47 and 4.07 cm s{sup {minus}1} and TCE gas phase loads between 0.07 and 0.40 mg L{sup {minus}1}. Depending on the superficial gas velocity used, degrees of conversion between 30% and 80% were obtained. A simplified reactor model using plug flow for the gas phase, mixed flow for the liquid phase, and pseudo first order reaction kinetics for the conversion of TCE was established. The model is able to give a reasonable approximation of the experimental data. TCE degradation at the used experimental conditions is mainly limited by reaction rate rather than by mass transfer rate. The model can be used to calculate the reactor value and the biomass concentration for a required conversion.

Hecht, V.; Brebbermann, D.; Bremer, P.; Deckwer, W.D. [Bereich Bioverfahrenstechnik, Braunschweig (Germany). Gesellschaft fuer Biotechnologische Forschung mbH

1995-08-20T23:59:59.000Z

76

Cost/performance comparison between pulse columns and centrifugal contactors designed to process Clinch River Breeder Reactor fuel  

Science Conference Proceedings (OSTI)

A comparison between pulse columns and centrifugal contactors was made to determine which type of equipment was more advantageous for use in the primary decontamination cycle of a remotely operated fuel reprocessing plant. Clinch River Breeder Reactor (CRBR) fuel was chosen as the fuel to be processed in the proposed 1 metric tonne/day reprocessing facility. The pulse columns and centrifugal contactors were compared on a performance and total cost basis. From this comparison, either the pulse columns or the centrifugal contactors will be recommended for use in a fuel reprocessing plant built to reprocess CRBR fuel. The reliability, solvent exposure to radiation, required time to reach steady state, and the total costs were the primary areas of concern for the comparison. The pulse column units were determined to be more reliable than the centrifugal contactors. When a centrifugal contactor motor fails, it can be remotely changed in less than one eight hour shift. Pulse columns expose the solvent to approximately five times as much radiation dose as the centrifugal contactor units; however, the proposed solvent recovery system adequately cleans the solvent for either case. The time required for pulse columns to reach steady state is many times longer than the time required for centrifugal contactors to reach steady state. The cost comparison between the two types of contacting equipment resulted in centrifugal contactors costing 85% of the total cost of pulse columns when the contactors were stacked on three levels in the module. If the centrifugal contactors were all positioned on the top level of a module with the unoccupied volume in the module occupied by other equipment, the centrifugal contactors cost is 66% of the total cost of pulse columns. Based on these results, centrifugal contactors are recommended for use in a remotely operated reprocessing plant built to reprocess CRBR fuel.

Ciucci, J.A. Jr.

1983-12-01T23:59:59.000Z

77

Independent Oversight Appraisal Process Protocols  

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

OFFICE OF ENFORCEMENT AND OVERSIGHT OFFICE OF ENFORCEMENT AND OVERSIGHT INDEPENDENT OVERSIGHT PROGRAM APPRAISAL PROCESS PROTOCOLS November 2012 Office of Health, Safety and Security U.S. Department of Energy Independent Oversight Program Appraisal Process Protocols Preface November 2012 i Preface The Office of Enforcement and Oversight, within the Office of Health, Safety and Security (HSS), is responsible for implementing an Independent Oversight Program for safety and security within the U.S. Department of Energy (DOE) in accordance with DOE Orders 227.1, Independent Oversight Program, and 226.1B, Implementation of Department of Energy Oversight Policy. Effective oversight, including independent oversight, of DOE Federal and contractor operations is an integral element of the

78

Independent Oversight Appraisal Process Protocols  

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

OFFICE OF ENFORCEMENT AND OVERSIGHT OFFICE OF ENFORCEMENT AND OVERSIGHT INDEPENDENT OVERSIGHT PROGRAM APPRAISAL PROCESS PROTOCOLS November 2012 Office of Health, Safety and Security U.S. Department of Energy Independent Oversight Program Appraisal Process Protocols Preface November 2012 i Preface The Office of Enforcement and Oversight, within the Office of Health, Safety and Security (HSS), is responsible for implementing an Independent Oversight Program for safety and security within the U.S. Department of Energy (DOE) in accordance with DOE Orders 227.1, Independent Oversight Program, and 226.1B, Implementation of Department of Energy Oversight Policy. Effective oversight, including independent oversight, of DOE Federal and contractor operations is an integral element of the

79

Saturated PseudoadiabatsA Noniterative Approximation  

Science Conference Proceedings (OSTI)

Two noniterative approximations are presented for saturated pseudoadiabats (also known as moist adiabats). One approximation determines which moist adiabat passes through a point of known pressure and temperature, such as through the lifting ...

Atoossa Bakhshaii; Roland Stull

2013-01-01T23:59:59.000Z

80

Rational Approximation for a Quasilinear Parabolic Equation  

E-Print Network (OSTI)

Approximation theorems, analogous to known results for linear elliptic equations, are obtained for solutions of the heat equation. Via the Cole-Hopf transformation, this gives rise to approximation theorems for a nonlinear parabolic equation, Burgers' equation.

P. M. Gauthier; N. Tarkhanov

2007-09-22T23:59:59.000Z

Note: This page contains sample records for the topic "independent column approximation" 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

Enabling ?-approximate querying in sensor networks  

Science Conference Proceedings (OSTI)

Data approximation is a popular means to support energy-efficient query processing in sensor networks. Conventional data approximation methods require users to specify fixed error bounds a prior to address the trade-off between result accuracy ...

Liu Yu; Jianzhong Li; Hong Gao; Xiaolin Fang

2009-08-01T23:59:59.000Z

82

Approximations: Atomic Ref. Data Elect. Struct. Calculations  

Science Conference Proceedings (OSTI)

... where ? xc (?) is the exchange-correlation energy per particle for the uniform electron gas of density ?. This approximation ...

83

MANUAL FOR USING LATEX TEMPLATE: TMS TWO-COLUMN ...  

Science Conference Proceedings (OSTI)

Title of Publication Edited by. TMS (The Minerals, Metals & Materials Society), Year. MANUAL FOR USING LATEX TEMPLATE: TMS TWO-COLUMN...

84

manual for using latex template: tms two-column proceedings ...  

Science Conference Proceedings (OSTI)

MANUAL FOR USING LATEX TEMPLATE: TMS TWO-COLUMN PROCEEDINGS PUBLICATIONS. TMS. 1. , Jane Doe. 2. , John Doe. 2. 1. TMS (The Minerals...

85

manual for using latex template: tms one-column proceedings ...  

Science Conference Proceedings (OSTI)

TMS ONE-COLUMN PROCEEDINGS PUBLICATIONS. TMS. 1. , Jane Doe. 2. , John Doe. 2. 1. TMS (The Minerals Metals & Materials Society); 184 Thorn Hill...

86

Predicting the products of crude oil distillation columns.  

E-Print Network (OSTI)

??Crude oil distillation systems, consisting of crude oil distillation columns and the associated heat recovery systems, are highly energy intensive. Heat-integrated design of crude oil (more)

Liu, Jing

2012-01-01T23:59:59.000Z

87

Model predictive control of a Kaibel distillation column.  

E-Print Network (OSTI)

?? Model predictive control (MPC) of a Kaibel distillation column is the main focus of this thesis. A model description together with a model extension (more)

Kvernland, Martin Krister

2009-01-01T23:59:59.000Z

88

Sequence independent amplification of DNA  

DOE Patents (OSTI)

The present invention is a rapid sequence-independent amplification procedure (SIA). Even minute amounts of DNA from various sources can be amplified independent of any sequence requirements of the DNA or any a priori knowledge of any sequence characteristics of the DNA to be amplified. This method allows, for example, the sequence independent amplification of microdissected chromosomal material and the reliable construction of high quality fluorescent in situ hybridization (FISH) probes from YACs or from other sources. These probes can be used to localize YACs on metaphase chromosomes but also--with high efficiency--in interphase nuclei. 25 figs.

Bohlander, S.K.

1998-03-24T23:59:59.000Z

89

Sequence independent amplification of DNA  

DOE Patents (OSTI)

The present invention is a rapid sequence-independent amplification procedure (SIA). Even minute amounts of DNA from various sources can be amplified independent of any sequence requirements of the DNA or any a priori knowledge of any sequence characteristics of the DNA to be amplified. This method allows, for example the sequence independent amplification of microdissected chromosomal material and the reliable construction of high quality fluorescent in situ hybridization (FISH) probes from YACs or from other sources. These probes can be used to localize YACs on metaphase chromosomes but also--with high efficiency--in interphase nuclei.

Bohlander, Stefan K. (Chicago, IL)

1998-01-01T23:59:59.000Z

90

Independent Oversight Review, West Valley Demonstration Project...  

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

Independent Oversight Review, West Valley Demonstration Project Transportation - September 2000 Independent Oversight Review, West Valley Demonstration Project Transportation -...

91

HEAT TRANSFER ANALYSIS FOR ION-EXCHANGE COLUMN SYSTEM  

SciTech Connect

Models have been developed to simulate the thermal characteristics of Crystalline Silicotitanate (CST) ion exchange media fully loaded with radioactive cesium in a column configuration and distributed within a waste storage tank. This work was conducted to support the Small Column Ion Exchange (SCIX) program which is focused on processing dissolved, high-sodium salt waste for the removal of specific radionuclides (including Cs-137, Sr-90, and actinides) within a High Level Waste (HLW) storage tank at the Savannah River Site. The SCIX design includes CST columns inserted and supported in the tank top risers for cesium removal. Temperature distributions and maximum temperatures across the column were calculated with a focus on process upset conditions. A two-dimensional computational modeling approach for the in-column ion-exchange domain was taken to include conservative, bounding estimates for key parameters such that the results would provide the maximum centerline temperatures achievable under the design configurations using a feed composition known to promote high cesium loading on CST. The current full-scale design for the CST column includes one central cooling pipe and four outer cooling tubes. Most calculations assumed that the fluid within the column was stagnant (i.e. no buoyancy-induced flow) for a conservative estimate. A primary objective of these calculations was to estimate temperature distributions across packed CST beds immersed in waste supernate or filled with dry air under various accident scenarios. Accident scenarios evaluated included loss of salt solution flow through the bed, inadvertent column drainage, and loss of active cooling in the column. The modeling results demonstrate that the baseline design using one central and four outer cooling tubes provides a highly efficient cooling mechanism for reducing the maximum column temperature.

Lee, S.; King, W.

2011-05-23T23:59:59.000Z

92

Novel techniques for slurry bubble column hydrodynamics  

Science Conference Proceedings (OSTI)

The objective of this cooperative research effort between Washington University, Ohio State University and Exxon Research Engineering Company was to improve the knowledge base for scale-up and operation of slurry bubble column reactors for syngas conversion and other coal conversion processes by increased reliance on experimentally verified hydrodynamic models. During the first year (July 1, 1995--June 30, 1996) of this three year program novel experimental tools (computer aided radioactive particle tracking (CARPT), particle image velocimetry (PIV), heat probe, optical fiber probe and gamma ray tomography) were developed and tuned for measurement of pertinent hydrodynamic quantities, such as velocity field, holdup distribution, heat transfer and bubble size. The accomplishments were delineated in the First Technical Annual Report. The second year (July, 1996--June 30, 1997) was spent on further development and tuning of the novel experimental tools (e.g., development of Monte Carlo calibration for CARPT, optical probe development), building up the hydrodynamic data base using these tools and comparison of the two techniques (PIV and CARPT) for determination of liquid velocities. A phenomenological model for gas and liquid backmixing was also developed. All accomplishments were summarized in the Second Annual Technical Report. During the third and final year of the program (July 1, 1997--June 30, 1998) and during the nine months no cost extension, the high pressure facility was completed and a set of data was taken at high pressure conditions. Both PIV, CT and CARPT were used. More fundamental hydrodynamic modeling was also undertaken and model predictions were compared to data. The accomplishments for this period are summarized in this report.

Dudukovic, M.P.

1999-05-14T23:59:59.000Z

93

PTAS for maximum weight independent set problem with random weights in bounded degree graphs  

E-Print Network (OSTI)

Finding the largest independent set in a graph is a notoriously difficult NP-complete combinatorial optimization problem. Moreover, even for graphs with largest degree 3, no polynomial time approximation algorithm exists ...

Gamarnik, David

94

Quasi-energy-independent solar neutrino transitions  

E-Print Network (OSTI)

Current solar, atmospheric, and reactor neutrino data still allow oscillation scenarios where the squared mass differences are all close to 10^-3 eV^2, rather than being hierarchically separated. For solar neutrinos, this situation (realized in the upper part of the so-called large-mixing angle solution) implies adiabatic transitions which depend weakly on the neutrino energy and on the matter density, as well as on the ``atmospheric'' squared mass difference. In such a regime of ``quasi-energy-independent'' (QEI) transitions, intermediate between the more familiar ``Mikheyev-Smirnov-Wolfenstein'' (MSW) and energy-independent (EI) regimes, we first perform analytical calculations of the solar nu_e survival probability at first order in the matter density, beyond the usual hierarchical approximations. We then provide accurate, generalized expressions for the solar neutrino mixing angles in matter, which reduce to those valid in the MSW, QEI and EI regimes in appropriate limits. Finally, a representative QEI scenario is discussed in some detail.

G. L. Fogli; E. Lisi; A. Palazzo

2001-05-09T23:59:59.000Z

95

Army Energy Security and Independence  

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

ARMY ARMY ENERGY SECURITY AND INDEPENDENCE Leadership Ownership Partnership 19 NOV 2008 Don Juhasz, PE, CEM CHIEF ARMY ENERGY POLICY Army Energy Security - "The Way Ahead" 2 ARMY ENERGY SECURITY AND INDEPENDENCE Leadership Ownership Partnership Energy Costs Driven by Global Situation OIL & GAS LIQUIDS Army Utilities Energy Use * 35% of DoD consumption * 21% of Fed government use * 11% of installations' budget * Commodity Prices increasing 8 - 20% annually Consumption Climbs as new sources decrease Oil production is primarily OCONUS and decreasing Our consumption is out of balance with our Reserves New Sources Dwindling - Forcing our reliance on Unstable governments 3 ARMY ENERGY SECURITY AND INDEPENDENCE Leadership Ownership Partnership Oil Field Forecasts Peak Year Oil Expert

96

Independent Components Of Odour Signals  

E-Print Network (OSTI)

If two independent observations or processes are measured with the same apparatus, the inherent nature of the measuring device will in many cases introduce a dependency between the two recorded processes object to inspection. In this paper a suggestion of how Independent Component Analysis (ICA) can be used to identify such device dependencies and in turn give an estimated reconstruction of the observations without the correlation between signals introduced by the apparatus. The procedure is illustrated with the use of an "electronic nose" used to sample odours from mixtures of alcohol solutions. It is shown that ICA as a novel tool in the analysis of odour signals can extract the independent odour sources and give acceptable estimates of the ratio with which the alcohol solutions were mixed with two different approaches.

Martin Kermit Oliver; Oliver Tomic T

2001-01-01T23:59:59.000Z

97

The Independent Technical Analysis Process  

DOE Green Energy (OSTI)

The Bonneville Power Administration (BPA) contracted with the Pacific Northwest National Laboratory (PNNL) to provide technical analytical support for system-wide fish passage information (BPA Project No. 2006-010-00). The goal of this project was to produce rigorous technical analysis products using independent analysts and anonymous peer reviewers. In the past, regional parties have interacted with a single entity, the Fish Passage Center to access the data, analyses, and coordination related to fish passage. This project provided an independent technical source for non-routine fish passage analyses while allowing routine support functions to be performed by other well-qualified entities.

Duberstein, Corey A.; Ham, Kenneth D.; Dauble, Dennis D.; Johnson, Gary E.

2007-04-13T23:59:59.000Z

98

Improved Error Bounds for the Adiabatic Approximation  

E-Print Network (OSTI)

Since the discovery of adiabatic quantum computing, a need has arisen for rigorously proven bounds for the error in the adiabatic approximation. We present in this paper, a rigorous and elementary derivation of upper and lower bounds on the error incurred from using the adiabatic approximation for quantum systems. Our bounds are often asymptotically tight in the limit of slow evolution for fixed Hamiltonians, and are used to provide sufficient conditions for the application of the adiabatic approximation. We show that our sufficiency criteria exclude the Marzlin--Sanders counterexample from the class of Hamiltonians that obey the adiabatic approximation. Finally, we demonstrate the existence of classes of Hamiltonians that resemble the Marzlin--Sanders counterexample Hamiltonian, but also obey the adiabatic approximation.

Cheung, Donny; Wiebe, Nathan

2011-01-01T23:59:59.000Z

99

Determination of approximate nonlinear self-adjointenss and approximate conservation law  

E-Print Network (OSTI)

Approximate nonlinear self-adjointness is an effective method to construct approximate conservation law of perturbed partial differential equations (PDEs). In this paper, we study the relations between approximate nonlinear self-adjointness of perturbed PDEs and nonlinear self-adjointness of the corresponding unperturbed PDEs, and consequently provide a simple approach to discriminate approximate nonlinear self-adjointness of perturbed PDEs. Moreover, a succinct approximate conservation law formula by virtue of the known conservation law of the unperturbed PDEs is given in an explicit form. As an application, we classify a class of perturbed wave equations to be approximate nonlinear self-adjointness and construct the general approximate conservation laws formulae. The specific examples demonstrate that approximate nonlinear self-adjointness can generate new approximate conservation laws.

Zhi-Yong Zhang

2013-01-19T23:59:59.000Z

100

Beeping a maximal independent set  

Science Conference Proceedings (OSTI)

We consider the problem of computing a maximal independent set (MIS) in an extremely harsh broadcast model that relies only on carrier sensing. The model consists of an anonymous broadcast network in which nodes have no knowledge about the topology of ...

Yehuda Afek; Noga Alon; Ziv Bar-Joseph; Alejandro Cornejo; Bernhard Haeupler; Fabian Kuhn

2011-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "independent column approximation" 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

ARM - Publications: Science Team Meeting Documents: Ensemble Single Column  

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

Ensemble Single Column Modelling (ESCM) in the Tropical Western Pacific Ensemble Single Column Modelling (ESCM) in the Tropical Western Pacific Hume, Timothy Bureau of Meteorology Research Centre Jakob, Christian BMRC Single column models (SCMs) are useful tools for the evaluation of parameterisations of radiative and moist processes used in general circulation models. Most SCM studies to date have concentrated on regions where there is a sufficiently dense observational network to derive the required forcing data, such as the Southern Great Plains. This poster describes an ensemble single column modelling (ESCM) approach, where an ensemble of SCM forcing data sets are derived from numerical weather prediction (NWP) analyses. The technique is applied to SCM runs at the Manus Island and Nauru ARM sites in the Tropical Western Pacific (TWP). It

102

Assessment of Solution Uncertainties in Single-Column Modeling Frameworks  

Science Conference Proceedings (OSTI)

Single-column models (SCMs) have been extensively promoted in recent years as an effective means to develop and test physical parameterizations targeted for more complex three-dimensional climate models. Although there are some clear advantages ...

James J. Hack; John A. Pedretti

2000-01-01T23:59:59.000Z

103

Compression and query execution within column oriented databases  

E-Print Network (OSTI)

Compression is a known technique used by many database management systems ("DBMS") to increase performance[4, 5, 14]. However, not much research has been done in how compression can be used within column oriented architectures. ...

Ferreira, Miguel C. (Miguel Cacela Rosa Lopes Ferreira)

2005-01-01T23:59:59.000Z

104

Dynamic RadiativeConvective Equilibria Using GCM Column Physics  

Science Conference Proceedings (OSTI)

The behavior of a GCM column physics package in a nonrotating, doubly periodic, homogeneous setting with prescribed SSTs is examined. This radiativeconvective framework is proposed as a useful tool for studying some of the interactions between ...

Isaac M. Held; Ming Zhao; Bruce Wyman

2007-01-01T23:59:59.000Z

105

Column generation based heuristic for a helicopter routing problem  

Science Conference Proceedings (OSTI)

This work presents a column generation based heuristic algorithm for the problem of planning the flights of helicopters to attend transport requests among airports in the continent and offshore platforms on the Campos basin for the Brazilian State Oil ...

Lorenza Moreno; Marcus Poggi de Arago; Eduardo Uchoa

2006-05-01T23:59:59.000Z

106

Column Water Vapor Content in Clear and Cloudy Skies  

Science Conference Proceedings (OSTI)

With radiosonde data from 15 Northern Hemisphere stations, surface-to-400-mb column water vapor is computed from daytime soundings for 19881990. On the basis of simultaneous surface visual cloud observations, the data are categorized according ...

Dian J. Gaffen; William P. Elliott

1993-12-01T23:59:59.000Z

107

ARM - Field Campaign - Summer Single Column Model IOP  

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

govCampaignsSummer Single Column Model IOP govCampaignsSummer Single Column Model IOP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Summer Single Column Model IOP 1997.06.18 - 1997.07.18 Lead Scientist : David Randall Data Availability Actual data files for a number of past SCM IOPs are available from the ARM Archive IOP Server Cloud and Radiation Products Derived from Satellite Data Colorado State's Single Column Modeling Home Page For data sets, see below. Summary During the IOP, 1180 sondes were launched, with 4 missing data due to weather related problems and 24 terminating before 10,000 m (10 km). Description The Summer 1997 SCM IOP was scheduled with the SGP97 Campaign. With additional NASA funding, the IOP was extended so that the total IOP covered

108

ARM - Field Campaign - Winter Single Column Model IOP  

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

govCampaignsWinter Single Column Model IOP govCampaignsWinter Single Column Model IOP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Winter Single Column Model IOP 1999.01.19 - 1999.02.08 Lead Scientist : David Randall Data Availability Actual data files for a number of past SCM IOPs are available from the ARM Archive under IOPs/UAV. Cloud and Radiation Products Derived from Satellite Data Colorado State's Single Column Modeling Home Page For data sets, see below. Description A second winter SCM IOP was conducted (1/19 - 2/8/99) to provide additional sampling of winter weather conditions. This was the first SCM IOP where AERIs and ceilometers were installed at the boundary facilities to give retrievals of temperature and moisture to supplement the sounding data. A

109

Polymer state approximations of Schroedinger wave functions  

E-Print Network (OSTI)

It is shown how states of a quantum mechanical particle in the Schroedinger representation can be approximated by states in the so-called polymer representation. The result may shed some light on the semiclassical limit of loop quantum gravity.

Klaus Fredenhagen; Felix Reszewski

2006-06-21T23:59:59.000Z

110

Improved approximations for k-exchange systems  

Science Conference Proceedings (OSTI)

Submodular maximization and set systems play a major role in combinatorial optimization. It is long known that the greedy algorithm provides a 1/(k + 1)-approximation for maximizing a monotone submodular function over a k-system. For the ...

Moran Feldman; Joseph Naor; Roy Schwartz; Justin Ward

2011-09-01T23:59:59.000Z

111

Blind multiuser detection based on kernel approximation  

Science Conference Proceedings (OSTI)

A kernel based multiuser detection (MUD) scheme in code-division multiple-access (CDMA) system is proposed. In this scheme, the support vector (SV) under support vector (SVM) framework is obtained through a kernel sparsity approximation, which regulates ...

Tao Yang; Bo Hu

2006-05-01T23:59:59.000Z

112

Casimir forces beyond the proximity approximation  

E-Print Network (OSTI)

The proximity force approximation (PFA) relates the interaction between closely spaced, smoothly curved objects to the force between parallel plates. Precision experiments on Casimir forces necessitate, and spur research ...

Bimonte, G.

113

Convergence Rates of Approximation by Translates  

E-Print Network (OSTI)

In this paper we consider the problem of approximating a function belonging to some funtion space Φ by a linear comination of n translates of a given function G. Ussing a lemma by Jones (1990) and Barron (1991) we show ...

Girosi, Federico

1992-03-01T23:59:59.000Z

114

Linear source approximation in CASMO5  

Science Conference Proceedings (OSTI)

A Linear Source (LS) approximation has been implemented in the two-dimensional Method of Characteristics (MOC) transport solver in a prototype version of CASMO5. The LS approximation, which relies on the computation of trajectory-based spatial moments over source regions to obtain the linear source expansion coefficients, improves the solution accuracy relative to the 'flat' or constant source approximation. In addition, the LS formulation is capable of treating arbitrarily-shaped source regions and is compatible with standard Coarse-Mesh Finite Difference (CMFD) acceleration. Numerical tests presented in this paper for the C5G7 MOX benchmark show that, for comparable accuracy with respect to the reference solution, the LS approximation can reduce the run time by a factor of four and the memory requirements by a factor often relative to the FS scheme. (authors)

Ferrer, R.; Rhodes, J. [Studsvik Scandpower, Inc., 504 Shoup Ave., Idaho Falls, ID 83402 (United States); Smith, K. [Dept. of Nuclear Science and Engineering, Massachusetts Inst. of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 (United States)

2012-07-01T23:59:59.000Z

115

N-Stream Approximations to Radiative Transfer  

Science Conference Proceedings (OSTI)

Schuster's two-stream approximation is first derived from Chandrasekhar's radiative transfer equation, and then generalized to an arbitrary number of streams. The resulting technique for solving the transfer equation that is similar to the ...

Charles Acquista; Frederick House; James Jafolla

1981-07-01T23:59:59.000Z

116

The Downwind Spread of an Initially Vertical Column of Particles in a Sheared Environment  

Science Conference Proceedings (OSTI)

The effects of particle fallspeeds on the downwind spread of initially vertical columns or curtains are examined in environments with wind shear. Sets of equations describing the column width as a function of time and distance below column top ...

Ronald E. Stewart; John D. Marwitz

1982-08-01T23:59:59.000Z

117

Installation of the Pulse-Plate Column Pilot Plant  

Science Conference Proceedings (OSTI)

There are three primary types of solvent extraction equipment utilized in the nuclear industry for reprocessing of used nuclear fuel; pulse columns, mixer-settlers, and centrifugal contactors. Considerable research and development has been performed at the INL and throughout the DOE complex on the application of centrifugal contactors for used fuel reprocessing and these contactors offer many significant advantages. However, pulse columns have been used extensively in the past in throughout the world for aqueous separations processes and remain the preferred equipment by many commercial entities. Therefore, a pulse-plate column pilot plant has been assembled as part of the Advanced Fuel Cycle Initiative to support experimentation and demonstration of pulse column operation. This will allow the training of personnel in the operation of pulse columns. Also, this capability will provide the equipment to allow for research to be conducted in the operation of pulse columns with advanced solvents and processes developed as part of the fuel cycle research and development being performed in the AFCI program.

Nick R. Mann

2009-07-01T23:59:59.000Z

118

Cuba: Energy, Sustainability and Independence  

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

Cuba: Energy, Sustainability and Independence Cuba: Energy, Sustainability and Independence Speaker(s): Victor Bruno Henriquez Perez Date: May 10, 2001 - 12:00pm Location: b Seminar Host/Point of Contact: Kristina LaCommare Cubasolar (http://www.cubasolar.cu) is Cuba's NGO of over 400 scientists researching and implementing projects in energy efficiency and conservation as well as renewable energy. This year Cubasolar wil receive a Global 500 award from the United Nations Environmental Program for its work in raising energy consciousness in Cuba and other nations of the developing world. Since its founding in 1994, Cubasolar has installed solar panels on over 300 family doctor clinics in rural Cuba and is in the process of installing 1800 panels in rural elementary schools. Cubasolar is also involved in

119

NERSC Calculations Provide Independent Confirmation of Global...  

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

NERSC Calculations Provide Independent Confirmation of Global Land Warming Since 1901 NERSC Calculations Provide Independent Confirmation of Global Land Warming Since 1901...

120

Independent Oversight Inspection of Environment, Safety, and...  

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

Independent Oversight Inspection of Environment, Safety, and Health Programs at the Savannah River Operations Office and Savannah River Site, January 2010 Independent Oversight...

Note: This page contains sample records for the topic "independent column approximation" 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

Independent Activity Report, Pantex - October 2010 | Department...  

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

October 2010 Independent Activity Report, Pantex - October 2010 October 2010 Pantex Plant Orientation Visit The U.S. Department of Energy (DOE) Office of Independent Oversight,...

122

Independent Activity Report, Pantex - December 2010 | Department...  

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

December 2010 Independent Activity Report, Pantex - December 2010 December 2010 Pantex Plant Site Visit The U.S. Department of Energy (DOE) Office of Independent Oversight, within...

123

Product-state Approximations to Quantum Ground States  

E-Print Network (OSTI)

The local Hamiltonian problem consists of estimating the ground-state energy (given by the minimum eigenvalue) of a local quantum Hamiltonian. First, we show the existence of a good product-state approximation for the ground-state energy of 2-local Hamiltonians with one or more of the following properties: (1) high degree, (2) small expansion, or (3) a ground state with sublinear entanglement with respect to some partition into small pieces. The approximation based on degree is a surprising difference between quantum Hamiltonians and classical CSPs (constraint satisfaction problems), since in the classical setting, higher degree is usually associated with harder CSPs. The approximation based on low entanglement, in turn, was previously known only in the regime where the entanglement was close to zero. Since the existence of a low-energy product state can be checked in NP, the result implies that any Hamiltonian used for a quantum PCP theorem should have: (1) constant degree, (2) constant expansion, (3) a "volume law" for entanglement with respect to any partition into small parts. Second, we show that in several cases, good product-state approximations not only exist, but can be found in polynomial time: (1) 2-local Hamiltonians on any planar graph, solving an open problem of Bansal, Bravyi, and Terhal, (2) dense k-local Hamiltonians for any constant k, solving an open problem of Gharibian and Kempe, and (3) 2-local Hamiltonians on graphs with low threshold rank, via a quantum generalization of a recent result of Barak, Raghavendra and Steurer. Our work introduces two new tools which may be of independent interest. First, we prove a new quantum version of the de Finetti theorem which does not require the usual assumption of symmetry. Second, we describe a way to analyze the application of the Lasserre/Parrilo SDP hierarchy to local quantum Hamiltonians.

Fernando G. S. L. Brando; Aram W. Harrow

2013-09-30T23:59:59.000Z

124

Approximate forward-backward algorithm for a switching linear Gaussian model  

Science Conference Proceedings (OSTI)

A hidden Markov model with two hidden layers is considered. The bottom layer is a Markov chain and given this the variables in the second hidden layer are assumed conditionally independent and Gaussian distributed. The observation process is Gaussian ... Keywords: Approximation, Forward-backward algorithm, Hidden Markov model, Metropolis-Hastings algorithm, Seismic inversion

Hugo Hammer; Hkon Tjelmeland

2011-01-01T23:59:59.000Z

125

Approximate posterior distributions for convolutional two-level hidden Markov models  

Science Conference Proceedings (OSTI)

A convolutional two-level hidden Markov model is defined and evaluated. The bottom level contains an unobserved categorical Markov chain, and given the variables in this level the middle level contains unobserved conditionally independent Gaussian variables. ... Keywords: Approximation, Convolution, Forward-backward algorithm, Hidden Markov model, Seismic inversion

Kjartan Rimstad; Henning Omre

2013-02-01T23:59:59.000Z

126

A conjugate-gradient based approach for approximate solutions of ...  

E-Print Network (OSTI)

column generation approach for optimization of so called step-and-shoot .... The goal of radiation therapy is to generate a dose distribution with high dose...

127

COSMOLOGICAL POST-NEWTONIAN APPROXIMATION COMPARED WITH PERTURBATION THEORY  

Science Conference Proceedings (OSTI)

We compare the cosmological first-order post-Newtonian (1PN) approximation with the relativistic cosmological linear perturbation theory in a zero-pressure medium with the cosmological constant. We compare equations and solutions in several different gauge conditions available in both methods. In the PN method we have perturbation equations for density, velocity, and gravitational potential independently of the gauge condition to 1PN order. However, correspondences with these 1PN equations are available only in certain gauge conditions in the perturbation theory. Equations of perturbed velocity and the perturbed gravitational potential in the zero-shear gauge exactly coincide with the Newtonian equations, which remain valid even to 1PN order (the same is true for perturbed velocity identified in the comoving gauge), and equations of perturbed density in the zero-shear gauge and the uniform-expansion gauge coincide to 1PN order. We identify other correspondences available in different gauge conditions of the perturbation theory.

Noh, Hyerim [Korea Astronomy and Space Science Institute, Daejon 305-348 (Korea, Republic of); Hwang, Jai-chan [Department of Astronomy and Atmospheric Sciences, Kyungpook National University, Daegu 702-701 (Korea, Republic of)

2012-10-01T23:59:59.000Z

128

On the Accuracy of the MINC approximation  

DOE Green Energy (OSTI)

The method of ''multiple interacting continua'' is based on the assumption that changes in thermodynamic conditions of rock matrix blocks are primarily controlled by the distance from the nearest fracture. The accuracy of this assumption was evaluated for regularly shaped (cubic and rectangular) rock blocks with uniform initial conditions, which are subjected to a step change in boundary conditions on the surface. Our results show that pressures (or temperatures) predicted from the MINC approximation may deviate from the exact solutions by as much as 10 to 15% at certain points within the blocks. However, when fluid (or heat) flow rates are integrated over the entire block surface, MINC-approximation and exact solution agree to better than 1%. This indicates that the MINC approximation can accurately represent transient inter-porosity flow in fractured porous media, provided that matrix blocks are indeed subjected to nearly uniform boundary conditions at all times.

Lai, C.H.; Pruess, K.; Bodvarsson, G.S.

1986-02-01T23:59:59.000Z

129

Clubbed Binomial Approximation for the Lightbulb Process  

E-Print Network (OSTI)

;2 Larry Goldstein and Aihua Xia Some fundamental properties of Wn, the number of light bulbs on at the end bulbs selected uniformly and independent of the past have their status changed from off to on, or vice versa. With Wn the number of bulbs on at the terminal time n and Cn a suitable clubbed binomial

Goldstein, Larry

130

The Complexity of Approximating Bounded-Degree Boolean #CSP (Extended Abstract)  

E-Print Network (OSTI)

The degree of a CSP instance is the maximum number of times that a variable may appear in the scope of constraints. We consider the approximate counting problem for Boolean CSPs with bounded-degree instances, for constraint languages containing the two unary constant relations {0} and {1}. When the maximum degree is at least 25 we obtain a complete classification of the complexity of this problem. It is exactly solvable in polynomial-time if every relation in the constraint language is affine. It is equivalent to the problem of approximately counting independent sets in bipartite graphs if every relation can be expressed as conjunctions of {0}, {1} and binary implication. Otherwise, there is no FPRAS unless NP=RP. For lower degree bounds, additional cases arise in which the complexity is related to the complexity of approximately counting independent sets in hypergraphs.

Dyer, Martin E; Jalsenius, Markus; Richerby, David

2010-01-01T23:59:59.000Z

131

The Exact Renormalisation Group and Approximate Solutions  

E-Print Network (OSTI)

We investigate the structure of Polchinski's formulation of the flow equations for the continuum Wilson effective action. Reinterpretations in terms of I.R. cutoff greens functions are given. A promising non-perturbative approximation scheme is derived by carefully taking the sharp cutoff limit and expanding in `irrelevancy' of operators. We illustrate with two simple models of four dimensional $\\lambda \\varphi^4$ theory: the cactus approximation, and a model incorporating the first irrelevant correction to the renormalized coupling. The qualitative and quantitative behaviour give confidence in a fuller use of this method for obtaining accurate results.

Tim R. Morris

1993-08-12T23:59:59.000Z

132

Model predictive control of a Kaibel distillation column  

E-Print Network (OSTI)

A Kaibel distillation column separates a feed into four products with significant lower energy consumption than a conventional sequence of binary columns. Optimal operation and control of such systems is an important task in order to obtain the potential energy savings. A laboratory column has been built at NTNU, Department of Chemical Engineering. At the time of the diploma work the laboratory column has unfortunately not been available for MPC experiments. In practical operation a control structure based on temperature measurements is chosen for the given case. This structure gives a four-by-four multivariable system. The candidate shall base his work on a model developed by Jens Strandberg. Tasks: 1. Describe the model and extend it to include an efficiency parameter describing insufficient mixing at stages 2. Describe a general linear MPC approach for the system 3. Analyze sensitivity of model errors 4. Evaluate alternative MPC approaches 5. Implement the MPC in MATLAB and illustrate the performance by simulations 6. Prepare a setup for connecting the MPC to the actual laboratory column

Martin Krister Kvernland; Supervisor Ole; Morten Aamo; Co-supervisor Ivar Halvorsen; Sigurd Skogestad Ikp; Jim Morrison Vii

2009-01-01T23:59:59.000Z

133

Testing approximations beyond the proton-neutron quasiparticle random phase approximation  

Science Conference Proceedings (OSTI)

In this work we analyze the validity of recently proposed extensions of the Quasiparticle Random Phase Approximation (QRPA). Particularly, we focus our attention on the Fully Renormalized QRPA (FRQRPA). We found that the results of this approximation do not differ from the results of the QRPA. This finding is supported by a detailed comparison between both formalisms, their assumptions and approximations, in the context of realistic calculations.

Civitarese, O.; Mariano, A. [Department of Physics. University of La Plata, C. C. 67 1900 La Plata (Argentina); Hirsch, J. G. [Instituto de Ciencias Nucleares, UNAM, A. P. 70-543, 04510 Mexico City, D. F. (Mexico); Reboiro, M. [Department of Physics. University of La Plata, C. C. 67 1900 La Plata (Argentina); Faculty of Engineering, University of Lomas de Zamora, Km 2 (1836) Lavallol (Argentina)

2007-08-15T23:59:59.000Z

134

Symbolic Test Selection Based on Approximate Analysis  

E-Print Network (OSTI)

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

Paris-Sud XI, Université de

135

Approximations to the Distributed Activation Energy Model  

E-Print Network (OSTI)

Approximations to the Distributed Activation Energy Model for Pyrolysis C.P. Please, 1 M.J. Mc, then resubmitted after minor revisions in September 2002. Abstract The Distributed Activation Energy Model (DAEM effective method for estimating kinetic parameters and the distribution of activation energies. Comparison

McGuinness, Mark

136

Complete Orders, Categories and Lattices of Approximations  

Science Conference Proceedings (OSTI)

The present article deals with the problem whether and how the bilattice orderings of knowledge ⩽$_k$ and truth ⩽$_t$ might enrich the theory of rough sets. Passing to the chief idea of the paper, we develop a bilattice-theoretic generalisation ... Keywords: *-autonomous category, Chu construction, Nelson lattice, approximation, bilattice, complete partial order, rough set

Marcin Wolski

2006-09-01T23:59:59.000Z

137

UNIFORM SEMICLASSICAL APPROXIMATION IN QUANTUM STATISTICAL MECHANICS.  

SciTech Connect

We present a simple method to deal with caustics in the semiclassical approximation to the partition function of a one-dimensional quantum system. The procedure, which makes use of complex trajectories, is applied to the quartic double-well potential.

De Carvalho, C.A.A.; Cavalcanit, R.M.; Fraga, E.S.; Joras, S.E.

2000-10-23T23:59:59.000Z

138

Nonlinear piecewise polynomial approximation: Theory and Algorithms  

E-Print Network (OSTI)

algorithms for compression and quick rendering of Digital Terrain Elevation Data (DTED) maps and implement by these and further theoretical results, we develop e?cient practical algorithms for compression and quick rendering linear approximation 23 2.3. Slim B-spaces 32 2.4. Skinny B-spaces 42 2.5. Fat B-spaces: The link

Karaivanov, Borislav

139

Nonlinear piecewise polynomial approximation: Theory and Algorithms  

E-Print Network (OSTI)

algorithms for compression and quick rendering of Digital Terrain Elevation Data (DTED) maps and implement results, we develop efficient practical algorithms for compression and quick rendering of Digital Terrain approximation 23 2.3. Slim B-spaces 32 2.4. Skinny B-spaces 42 2.5. Fat B-spaces: The link to Besov spaces 46 2

Karaivanov, Borislav

140

Real-time creased approximate subdivision surfaces  

Science Conference Proceedings (OSTI)

We present an extension of recently developed Loop and Schaefer's approximation of Catmull-Clark surfaces (ACC) for surfaces with creases and corners which are essential for most applications. We discuss the integration of ACC into Valve's Source game ... Keywords: GPU tessellation, geometric modeling, hardware rendering, subdivision surfaces, video games

Denis Kovacs; Jason Mitchell; Shanon Drone; Denis Zorin

2009-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "independent column approximation" 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

Single Column Model Simulations of Cloud Sensitivity to Forcing  

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

Single-Column Model Simulations Single-Column Model Simulations of Cloud Sensitivity to Forcing A. D. Del Genio National Aeronautics and Space Administration Goddard Institute for Space Studies New York, New York A. B. Wolf National Aeronautics and Space Administration SGT, Inc., Goddard Institute for Space Studies New York, New York Introduction The Atmospheric Radiation Measurement (ARM) Program single-column modeling (SCM) framework has to date used several fairly brief intensive observing periods (IOPs) to evaluate the performance of climate model parameterizations. With only a few weather events in each IOP, it is difficult to separate errors associated with the instantaneous dynamical forcing from errors in parameterization. It is also impossible to determine whether model errors are systematic and climatically significant. This

142

the Fractional Flotation of Flotation Column Particles Opportunity  

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

Enhancing Selectivity and Recovery in Enhancing Selectivity and Recovery in the Fractional Flotation of Flotation Column Particles Opportunity Although research is currently inactive on the patented technology "Method for Enhancing Selectivity and Recovery in the Fractional Flotation of Flotation Column Particles," the technology is available for licensing from the U.S. Department of Energy's National Energy Technology Laboratory (NETL). Disclosed in this patent is a method of particle separation from a feed stream comprised of particles of varying hydrophobicity by injecting the feed stream directly into the froth zone of a vertical flotation column in the presence of a counter-current reflux stream. The current invention allows the height of the feed stream injection and the reflux ratio to be

143

ARM - Field Campaign - Summer 1994 Single Column Model IOP  

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

govCampaignsSummer 1994 Single Column Model IOP govCampaignsSummer 1994 Single Column Model IOP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Summer 1994 Single Column Model IOP 1994.07.01 - 1994.07.31 Lead Scientist : David Randall Data Availability Data Plots from Colorado State University Data Plots from Livermore National Laboratory Actual data files for a number of past SCM IOPs are available from the ARM Archive. For data sets, see below. Description These seasonal SCM IOPs are conducted at the Southern Great Plains to enhance the frequency of observations for SCM uses, particularly vertical soundings of temperature, water vapor, and winds. The SCM IOPs are conducted for a period of 21 days. During that time, radiosondes are launched at the Central Facility and the four boundary facilities eight

144

ARM - Field Campaign - Winter 1994 Single Column Model IOP  

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

govCampaignsWinter 1994 Single Column Model IOP govCampaignsWinter 1994 Single Column Model IOP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Winter 1994 Single Column Model IOP 1994.01.01 - 1994.01.31 Lead Scientist : David Randall Data Availability Data Plots from Colorado State University Data Plots from Livermore National Laboratory Actual data files for a number of past SCM IOPs are available from the ARM Archive. For data sets, see below. Description These seasonal SCM IOPs are conducted at the Southern Great Plains to enhance the frequency of observations for SCM uses, particularly vertical soundings of temperature, water vapor, and winds. The SCM IOPs are conducted for a period of 21 days. During that time, radiosondes are launched at the Central Facility and the four boundary facilities eight

145

ARM - Field Campaign - Fall 1995 Single Column Model IOP  

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

Single Column Model IOP Single Column Model IOP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Fall 1995 Single Column Model IOP 1995.09.01 - 1995.10.31 Lead Scientist : David Randall Data Availability Data Plots from Colorado State University Data Plots from Livermore National Laboratory Actual data files for a number of past SCM IOPs are available from the ARM Archive. For data sets, see below. Description These seasonal SCM IOPs are conducted at the Southern Great Plains to enhance the frequency of observations for SCM uses, particularly vertical soundings of temperature, water vapor, and winds. The SCM IOPs are conducted for a period of 21 days. During that time, radiosondes are launched at the Central Facility and the four boundary facilities eight

146

ENGINEERING DEVELOPMENT OF SLURRY BUBBLE COLUMN REACTOR (SBCR)TECHNOLOGY  

SciTech Connect

The major technical objectives of this program are threefold: (1) to develop the design tools and a fundamental understanding of the fluid dynamics of a slurry bubble column 0reactor to maximize reactor productivity, (2) to develop the mathematical reactor design models and gain an understanding of the hydrodynamic fundamentals under industrially relevant process conditions, and (3) to develop an understanding of the hydrodynamics and their interaction with the chemistries occurring in the bubble column reactor. Successful completion of these objectives will permit more efficient usage of the reactor column and tighter design criteria, increase overall reactor efficiency, and ensure a design that leads to stable reactor behavior when scaling up to large diameter reactors.

Bernard A. Toseland, Ph.D

2000-06-01T23:59:59.000Z

147

ENGINEERING DEVELOPMENT OF SLURRY BUBBLE COLUMN REACTOR (SBCR) TECHNOLOGY  

SciTech Connect

The major technical objectives of this program are threefold: (1) to develop the design tools and a fundamental understanding of the fluid dynamics of a slurry bubble column reactor to maximize reactor productivity, (2) to develop the mathematical reactor design models and gain an understanding of the hydrodynamic fundamentals under industrially relevant process conditions, and (3) to develop an understanding of the hydrodynamics and their interaction with the chemistries occurring in the bubble column reactor. Successful completion of these objectives will permit more efficient usage of the reactor column and tighter design criteria, increase overall reactor efficiency, and ensure a design that leads to stable reactor behavior when scaling up to large diameter reactors.

Bernard A. Toseland, Ph.D.

1999-01-01T23:59:59.000Z

148

An instrument for the measurement and determination of chemical pulse column parameters  

DOE Patents (OSTI)

This invention pertains to an instrument for monitoring and measuring pneumatic driving force pulse parameters applied to chemical separation pulse columns obtains real time pulse frequency and root mean square amplitude values, calculates column inch values and compares these values against preset limits to alert column operators to the variations of pulse column operational parameters beyond desired limits. 2 figs.

Marchant, N.J.; Morgan, J.P.

1988-08-31T23:59:59.000Z

149

Approximate gauge symmetry of composite vector bosons  

SciTech Connect

It can be shown in a solvable field theory model that the couplings of the composite vector bosons made of a fermion pair approach the gauge couplings in the limit of strong binding. Although this phenomenon may appear accidental and special to the vector bosons made of a fermion pair, we extend it to the case of bosons being constituents and find that the same phenomenon occurs in a more intriguing way. The functional formalism not only facilitates computation but also provides us with a better insight into the generating mechanism of approximate gauge symmetry, in particular, how the strong binding and global current conservation conspire to generate such an approximate symmetry. Remarks are made on its possible relevance or irrelevance to electroweak and higher symmetries.

Suzuki, Mahiko [Lawrence Berkeley National Laboratory and Department of Physics, University of California, Berkeley, California 94720 (United States)

2010-08-15T23:59:59.000Z

150

Approximate gauge symemtry of composite vector bosons  

SciTech Connect

It can be shown in a solvable field theory model that the couplings of the composite vector mesons made of a fermion pair approach the gauge couplings in the limit of strong binding. Although this phenomenon may appear accidental and special to the vector bosons made of a fermion pair, we extend it to the case of bosons being constituents and find that the same phenomenon occurs in more an intriguing way. The functional formalism not only facilitates computation but also provides us with a better insight into the generating mechanism of approximate gauge symmetry, in particular, how the strong binding and global current conservation conspire to generate such an approximate symmetry. Remarks are made on its possible relevance or irrelevance to electroweak and higher symmetries.

Suzuki, Mahiko

2010-06-01T23:59:59.000Z

151

Approximating stochastic volatility by recombinant trees  

E-Print Network (OSTI)

A general method to construct recombinant tree approximations for stochastic volatility models is developed and applied to the Heston model for stock price dynamics. In this application, the resulting approximation is a four tuple Markov process. The ?first two components are related to the stock and volatility processes and take values in a two dimensional Binomial tree. The other two components of the Markov process are the increments of random walks with simple values in {-1; +1}. The resulting effi?cient option pricing equations are numerically implemented for general American and European options including the standard put and calls, barrier, lookback and Asian type pay-o?ffs. The weak and extended weak convergence are also proved.

Akyildirim, Erdinc; Soner, H Mete

2012-01-01T23:59:59.000Z

152

Dictionary Approximation For Matching Pursuit Video Coding  

E-Print Network (OSTI)

Previously, we demonstrated an efficient video codec based on overcomplete signal decomposition using matching pursuits. Dictionary design is an important issue for this system, and others have shown alternate dictionaries which lead to either coding efficiency improvements or reduced encoder complexity. In this work, we introduce for the first time a design methodology which incorporates both coding efficiency and complexity in a systematic way. The key to our new method is an algorithm which takes an arbitrary 2-D dictionary and generates approximations of the dictionary which have fast 2-stage implementations. By varying the quality of the approximation, we can explore a systematic tradeoff between the coding efficiency and complexity of the matching pursuit video encoder. As a practical result, we show cases where complexity is reduced by a factor of 500 to 1000 in exchange for small coding efficiency losses of around 0.1 dB PSNR. 1. INTRODUCTION Most video codecs in use today ar...

Ralph Neff; Avideh Zakhor

2000-01-01T23:59:59.000Z

153

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

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

1. Fuel Consumption, 1998;" 1. Fuel Consumption, 1998;" " Level: National Data; " " Row: Selected SIC Codes; Column: Energy Sources;" " Unit: Physical Units or Btu." " "," "," ",," "," "," "," "," "," "," "," ",," " " "," ",,,,,,,,"Coke" " "," "," ","Net","Residual","Distillate","Natural Gas(d)","LPG and","Coal","and Breeze"," ","RSE" "SIC"," ","Total","Electricity(b)","Fuel Oil","Fuel Oil(c)","(billion","NGL(e)","(million","(million","Other(f)","Row"

154

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

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

S5.1. Selected Byproducts in Fuel Consumption, 1998;" S5.1. Selected Byproducts in Fuel Consumption, 1998;" " Level: National Data; " " Row: Selected SIC Codes; Column: Energy Sources;" " Unit: Trillion Btu." " "," "," "," "," "," "," "," ","Waste"," ",," " " "," "," ","Blast"," "," ","Pulping Liquor"," ","Oils/Tars","RSE" "SIC"," "," ","Furnace/Coke"," ","Petroleum","or","Wood Chips,","and Waste","Row"

155

" Row: NAICS Codes; Column: Energy Sources;"  

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

2. Fuel Consumption, 1998;" 2. Fuel Consumption, 1998;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Trillion Btu." " "," "," ",," "," "," "," "," "," "," "," ",," " " "," ",,,,,,,,,,"RSE" "NAICS"," "," ","Net","Residual","Distillate",,"LPG and",,"Coke"," ","Row" "Code(a)","Subsector and Industry","Total","Electricity(b)","Fuel Oil","Fuel Oil(c)","Natural Gas(d)","NGL(e)","Coal","and Breeze","Other(f)","Factors"

156

" Row: NAICS Codes; Column: Energy Sources;"  

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

2 Fuel Consumption, 2010;" 2 Fuel Consumption, 2010;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Trillion Btu." " "," "," ",," "," "," "," "," "," "," " " "," " "NAICS"," "," ","Net","Residual","Distillate",,"LPG and",,"Coke"," " "Code(a)","Subsector and Industry","Total","Electricity(b)","Fuel Oil","Fuel Oil(c)","Natural Gas(d)","NGL(e)","Coal","and Breeze","Other(f)"

157

" Row: NAICS Codes; Column: Energy Sources;"  

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

1 Offsite-Produced Fuel Consumption, 2002;" 1 Offsite-Produced Fuel Consumption, 2002;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Physical Units or Btu." " "," "," ",," "," "," "," "," "," "," "," ",," " " "," ",,,,,,,,"Coke" " "," "," ",,"Residual","Distillate","Natural","LPG and","Coal","and Breeze"," ","RSE" "NAICS"," ","Total","Electricity(b)","Fuel Oil","Fuel Oil(c)","Gas(d)","NGL(e)","(million","(million","Other(f)","Row"

158

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

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

2. Fuel Consumption, 1998;" 2. Fuel Consumption, 1998;" " Level: National Data; " " Row: Selected SIC Codes; Column: Energy Sources;" " Unit: Trillion Btu." " "," "," ",," "," "," "," "," "," "," "," ",," " " "," ",,,,,,,,,,"RSE" "SIC"," "," ","Net","Residual","Distillate",,"LPG and",,"Coke"," ","Row" "Code(a)","Major Group and Industry","Total","Electricity(b)","Fuel Oil","Fuel Oil(c)","Natural Gas(d)","NGL(e)","Coal","and Breeze","Other(f)","Factors"

159

" Row: NAICS Codes; Column: Energy Sources;"  

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

2 Fuel Consumption, 2002;" 2 Fuel Consumption, 2002;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Trillion Btu." " "," "," ",," "," "," "," "," "," "," "," ",," " " "," ",,,,,,,,,,"RSE" "NAICS"," "," ","Net","Residual","Distillate","Natural","LPG and",,"Coke"," ","Row" "Code(a)","Subsector and Industry","Total","Electricity(b)","Fuel Oil","Fuel Oil(c)","Gas(d)","NGL(e)","Coal","and Breeze","Other(f)","Factors"

160

" Row: NAICS Codes; Column: Energy Sources;"  

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

1 Fuel Consumption, 2002;" 1 Fuel Consumption, 2002;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Physical Units or Btu." " "," "," ",," "," "," "," "," "," "," "," ",," " " "," ",,,,,,,,"Coke" " "," "," ","Net","Residual","Distillate","Natural","LPG and","Coal","and Breeze"," ","RSE" "NAICS"," ","Total","Electricity(b)","Fuel Oil","Fuel Oil(c)","Gas(d)","NGL(e)","(million","(million","Other(f)","Row"

Note: This page contains sample records for the topic "independent column approximation" 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

" Row: NAICS Codes; Column: Electricity Components;"  

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

1 Electricity: Components of Net Demand, 2002;" 1 Electricity: Components of Net Demand, 2002;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Electricity Components;" " Unit: Million Kilowatthours." " "," ",,,,,," " " "," ",,,"Total ","Sales and","Net Demand","RSE" "NAICS"," ",,"Transfers ","Onsite","Transfers","for","Row" "Code(a)","Subsector and Industry","Purchases"," In(b)","Generation(c)","Offsite","Electricity(d)","Factors" ,,"Total United States"

162

" Row: NAICS Codes; Column: Energy Sources;"  

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

1 Fuel Consumption, 2010;" 1 Fuel Consumption, 2010;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Physical Units or Btu." " "," "," ",," "," "," "," "," "," "," " " "," ",,,,,,,,"Coke" " "," "," ","Net","Residual","Distillate","Natural Gas(d)","LPG and","Coal","and Breeze"," " "NAICS"," ","Total","Electricity(b)","Fuel Oil","Fuel Oil(c)","(billion","NGL(e)","(million","(million","Other(f)"

163

" Row: NAICS Codes; Column: Energy Sources;"  

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

6 Quantity of Purchased Energy Sources, 2010;" 6 Quantity of Purchased Energy Sources, 2010;" " Level: National and Regional Data;" " Row: NAICS Codes; Column: Energy Sources;" " Unit: Physical Units or Btu." " "," "," ",," "," "," "," "," "," "," " " "," ",,,,,,,,"Coke" " "," "," ",,"Residual","Distillate","Natural Gas(c)","LPG and","Coal","and Breeze"," " "NAICS"," ","Total","Electricity","Fuel Oil","Fuel Oil(b)","(billion","NGL(d)","(million","(million","Other(e)"

164

Thermal Analysis for Ion-Exchange Column System  

Science Conference Proceedings (OSTI)

Models have been developed to simulate the thermal characteristics of crystalline silicotitanate ion exchange media fully loaded with radioactive cesium either in a column configuration or distributed within a waste storage tank. This work was conducted to support the design and operation of a waste treatment process focused on treating dissolved, high-sodium salt waste solutions for the removal of specific radionuclides. The ion exchange column will be installed inside a high level waste storage tank at the Savannah River Site. After cesium loading, the ion exchange media may be transferred to the waste tank floor for interim storage. Models were used to predict temperature profiles in these areas of the system where the cesium-loaded media is expected to lead to localized regions of elevated temperature due to radiolytic decay. Normal operating conditions and accident scenarios (including loss of solution flow, inadvertent drainage, and loss of active cooling) were evaluated for the ion exchange column using bounding conditions to establish the design safety basis. The modeling results demonstrate that the baseline design using one central and four outer cooling tubes provides a highly efficient cooling mechanism for reducing the maximum column temperature. In-tank modeling results revealed that an idealized hemispherical mound shape leads to the highest tank floor temperatures. In contrast, even large volumes of CST distributed in a flat layer with a cylindrical shape do not result in significant floor heating.

Lee, S.

2012-12-20T23:59:59.000Z

165

2005 ASHRAE. 109 Groundwater heat pump systems using standing column  

E-Print Network (OSTI)

©2005 ASHRAE. 109 ABSTRACT Groundwater heat pump systems using standing column wells Carl D. Orio Carl N. Johnson, PhD, PE Simon J. Rees, PhD Member ASHRAE Member ASHRAE Member ASHRAE A. Chiasson, PhD, PE Zheng Deng, PhD Jeffrey D. Spitler, PhD, PE Member ASHRAE Student Member ASHRAE Fellow

166

" Row: NAICS Codes; Column: Electricity Components;"  

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

1. Electricity: Components of Net Demand, 1998;" 1. Electricity: Components of Net Demand, 1998;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Electricity Components;" " Unit: Million Kilowatthours." " "," ",,,,,," " " "," ",,,,"Sales and","Net Demand","RSE" "NAICS"," ",,,"Total Onsite","Transfers","for","Row" "Code(a)","Subsector and Industry","Purchases","Transfers In(b)","Generation(c)","Offsite","Electricity(d)","Factors" ,,"Total United States"

167

" Row: NAICS Codes; Column: Energy Sources;"  

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

1 Offsite-Produced Fuel Consumption, 2006;" 1 Offsite-Produced Fuel Consumption, 2006;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Physical Units or Btu." " "," "," ",,,," "," "," ",," "," "," "," "," " " "," ",,,,,,,,,,,"Coke" " "," "," ",,,,"Residual","Distillate","Natural Gas(d)",,"LPG and","Coal","and Breeze"," " "NAICS"," ","Total",,"Electricity(b)",,"Fuel Oil","Fuel Oil(c)","(billion",,"NGL(e)","(million","(million","Other(f)"

168

" Row: NAICS Codes; Column: Energy Sources;"  

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

1. Fuel Consumption, 1998;" 1. Fuel Consumption, 1998;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Physical Units or Btu." " "," "," ",," "," "," "," "," "," "," "," ",," " " "," ",,,,,,,,"Coke" " "," "," ","Net","Residual","Distillate","Natural Gas(d)","LPG and","Coal","and Breeze"," ","RSE" "NAICS"," ","Total","Electricity(b)","Fuel Oil","Fuel Oil(c)","(billion","NGL(e)","(million","(million","Other(f)","Row"

169

Independent Oversight Review, Los Alamos National Laboratory...  

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

Laboratory Chemistry and Metallurgy Research Facility - January 2012 Independent Oversight Review, Los Alamos National Laboratory Chemistry and Metallurgy Research Facility -...

170

Independent Mineral Processing Project Technical Due Diligence  

Science Conference Proceedings (OSTI)

Presentation Title, Independent Mineral Processing Project Technical Due Diligence ... CRIMM Energy-saving Magnetic Separation Equipment and Industrial...

171

Small Wind Independent Testing (Fact Sheet)  

DOE Green Energy (OSTI)

This fact sheet describes the Small Wind Independent Testing at the NWTC and the Regional Test Centers project.

Not Available

2010-09-01T23:59:59.000Z

172

Lessons Learned from Independent Verification Activities | Department...  

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

control after the property has been demonstrated to meet the Department's stringent radiation protection requirements. Lessons Learned from Independent Verification...

173

Independent Activity Report, Sandia National Laboratories - September...  

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

September 2012 Independent Activity Report, Sandia National Laboratories - September 2012 September 2012 Operational Awareness Oversight of Sandia National Laboratories HIAR...

174

Heat transfer investigations in a slurry bubble column  

SciTech Connect

Slurry bubble columns, for use in Fisher-Tropsch synthesis, have been investigated. Two bubble columns (0.108 and 0.305 m internal diameter) were set up and experiments were conducted to determine gas holdup and heat transfer coefficients. These columns were equipped with either single heat transfer probes of different diameters, or bundles of five-, seven- or thirty-seven tubes. The experiments were conducted for two- and three-phase systems; employing for gas phase: air and nitrogen, liquid phase: water and Therminol-66, and solid phase: red iron oxide (1.02, 1.70 and 2.38 {mu}m), glass beads (50.0, 90.0, 119.0 and 143.3 {mu}m), silica sand (65 {mu}), and magnetite (28.0, 35.7, 46.0, 58.0, 69.0, 90.5, 115.5, and 137.5 {mu}m). The column temperature was varied between 298--523 K, gas velocity between 0--40 cm/s, and solids concentration between 0--50 weight percent. The holdup and heat transfer data as a function of operating and system parameters were employed to assess the available correlations and semitheoretical models, and to develop new correlations. Information concerning the design and scale-up of larger units is presented. Specific research work that need to be undertaken to understand the phenomena of heat transfer and gas holdup is outlined so that efficient gas conversion and catalyst usage may be accomplished in slurry bubble columns. 130 refs., 177 figs., 54 tabs.

Saxena, S.C.; Rao, N.S.; Vadivel, R.; Shrivastav, S.; Saxena, A.C.; Patel, B.B.; Thimmapuram, P.R.; Kagzi, M.Y.; Khan, I.A.; Verma, A.K.

1991-02-01T23:59:59.000Z

175

Shear viscosity in the postquasistatic approximation  

Science Conference Proceedings (OSTI)

We apply the postquasistatic approximation, an iterative method for the evolution of self-gravitating spheres of matter, to study the evolution of anisotropic nonadiabatic radiating and dissipative distributions in general relativity. Dissipation is described by viscosity and free-streaming radiation, assuming an equation of state to model anisotropy induced by the shear viscosity. We match the interior solution, in noncomoving coordinates, with the Vaidya exterior solution. Two simple models are presented, based on the Schwarzschild and Tolman VI solutions, in the nonadiabatic and adiabatic limit. In both cases, the eventual collapse or expansion of the distribution is mainly controlled by the anisotropy induced by the viscosity.

Peralta, C.; Rosales, L.; Rodriguez-Mueller, B.; Barreto, W. [Deutscher Wetterdienst, Frankfurter Str. 135, 63067 Offenbach (Germany); Laboratorio de Fisica Computacional, Universidad Experimental Politecnica 'Antonio Jose de Sucre', Puerto Ordaz (Venezuela, Bolivarian Republic of); Computational Science Research Center, College of Sciences, San Diego State University, San Diego, California (United States); Centro de Fisica Fundamental, Facultad de Ciencias, Universidad de Los Andes, Merida (Venezuela, Bolivarian Republic of)

2010-05-15T23:59:59.000Z

176

Stabilizing control of parallel AC-DC power transmission systems by approximate switching curve  

SciTech Connect

A method to improve the transient stability of bulk power transmission system is presented. The method stabilizes the control of parallel ac-dc transmission systems using an approximate switching curve. The optimal switching curve is approximated by a power series and the resulting switching curve is determined independent of type and duration of faults that occur to the system. In addition, coefficients of the switching curve can be calculated on a off-line basis which allows use of simple on-line algebraic calculations in emergency conditions.

Ichiyanagi, K.; Kobayashi, H.; Kakehu, H.

1980-01-01T23:59:59.000Z

177

Microsoft Word - NTS Final Vol 2 two column.doc  

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

EMERGENCY MANAGEMENT INSPECTION OF THE NEVADA TEST SITE Volume II September 21, 2004 i INDEPENDENT OVERSIGHT EMERGENCY MANAGEMENT INSPECTION OF THE NEVADA TEST SITE Volume II Table...

178

Analytic approximate radiation effects due to Bremsstrahlung  

SciTech Connect

The purpose of this note is to provide analytic approximate expressions that can provide quick estimates of the various effects of the Bremsstrahlung radiation produced relatively low energy electrons, such as the dumping of the beam into the beam stop at the ERL or field emission in superconducting cavities. The purpose of this work is not to replace a dependable calculation or, better yet, a measurement under real conditions, but to provide a quick but approximate estimate for guidance purposes only. These effects include dose to personnel, ozone generation in the air volume exposed to the radiation, hydrogen generation in the beam dump water cooling system and radiation damage to near-by magnets. These expressions can be used for other purposes, but one should note that the electron beam energy range is limited. In these calculations the good range is from about 0.5 MeV to 10 MeV. To help in the application of this note, calculations are presented as a worked out example for the beam dump of the R&D Energy Recovery Linac.

Ben-Zvi I.

2012-02-01T23:59:59.000Z

179

Using solvent extraction to process nitrate anion exchange column effluents  

SciTech Connect

Octyl(phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide (CMPO), a new organophosphorous extractant, and a new centrifugal mixer-settler both recently developed at Argonne were evaluated for their potential use in the recovery of actinides from nitrate anion exchange column effluents. The performance of the extractant was evaluated by measuring the extraction coefficient values as a function of acid and salt concentration. Additional performance parameters include extraction coefficient behavior as a function of the total metal concentration in the organic phase, and comparison of different stripping and organic scrubbing techniques. A simulated effluent stream was used to evaluate the performance of the centrifugal mixer-settlers by comparing experimental and calculated interstage concentration profiles. Both the CMPO extractant and the centrifugal mixer-settlers have potential for processing nitrate column effluents, particularly if the stripping behavior can be improved. Details of the proposed process are presented in the flowsheet and contactor design analyses.

Yarbro, S.L.

1987-10-01T23:59:59.000Z

180

Tritium Isotope Separation Using Adsorption-Distillation Column  

Science Conference Proceedings (OSTI)

In order to miniaturize the height of a distillation tower for the detritiation of waste water from fusion reactors, two experiments were conducted: (1) liquid frontal chromatography of tritium water eluting through an adsorption column and (2) water distillation using a column packed with adsorbent particles. The height of the distillation tower depends on the height equivalent to a theoretical plate, HETP, and the equilibrium isotope separation factor, {alpha}{sub H-T}{sup equi}. The adsorption action improved not only HETP but also {alpha}{sub H-T}{sup equi}. Since the adsorption-distillation method proposed here can shorten the tower height with keeping advantages of the distillation, it may bring an excellent way for miniaturizing the distillation tower to detritiate a large amount of waste water from fusion reactors.

Fukada, Satoshi [Kyushu University (Japan)

2005-07-15T23:59:59.000Z

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181

Method of recovering adsorbed liquid compounds from molecular sieve columns  

DOE Patents (OSTI)

Molecularly adsorbed volatile liquid compounds are recovered from molecular sieve adsorbent columns by directionally applying microwave energy to the bed of the adsorbent to produce a mixed liquid-gas effluent. The gas portion of the effluent generates pressure within the bed to promote the discharge of the effluent from the column bottoms. Preferably the discharged liquid-gas effluent is collected in two to three separate fractions, the second or intermediate fraction having a substantially higher concentration of the desorbed compound than the first or third fractions. The desorption does not need to be assisted by passing a carrier gas through the bed or by applying reduced pressure to the outlet from the bed.

Burkholder, Harvey R. (Ames, IA); Fanslow, Glenn E. (Ames, IA)

1983-01-01T23:59:59.000Z

182

" Row: NAICS Codes; Column: Energy Sources;"  

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

3.4 Number of Establishments by Fuel Consumption, 2006;" 3.4 Number of Establishments by Fuel Consumption, 2006;" " Level: National Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Establishment Counts." " "," "," ",," "," "," "," "," "," "," ",," " " "," ","Any" "NAICS"," ","Energy","Net","Residual","Distillate",,"LPG and",,"Coke"," " "Code(a)","Subsector and Industry","Source(b)","Electricity(c)","Fuel Oil","Fuel Oil(d)","Natural Gas(e)","NGL(f)","Coal","and Breeze","Other(g)"

183

" Row: NAICS Codes; Column: Electricity Components;"  

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

1.1 Electricity: Components of Net Demand, 2010;" 1.1 Electricity: Components of Net Demand, 2010;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Electricity Components;" " Unit: Million Kilowatthours." " "," " " "," ",,,"Total ","Sales and","Net Demand" "NAICS"," ",,"Transfers ","Onsite","Transfers","for" "Code(a)","Subsector and Industry","Purchases","In(b)","Generation(c)","Offsite","Electricity(d)" ,,"Total United States" 311,"Food",75652,21,5666,347,80993

184

" Row: NAICS Codes; Column: Energy Sources;"  

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

2 Offsite-Produced Fuel Consumption, 2002;" 2 Offsite-Produced Fuel Consumption, 2002;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Trillion Btu." " "," "," ",," "," "," "," "," "," "," "," ",," " " "," ",,,,,,,,,,"RSE" "NAICS"," "," ",,"Residual","Distillate","Natural","LPG and",,"Coke"," ","Row" "Code(a)","Subsector and Industry","Total","Electricity(b)","Fuel Oil","Fuel Oil(c)","Gas(d)","NGL(e)","Coal","and Breeze","Other(f)","Factors"

185

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

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

1. Nonfuel (Feedstock) Use of Combustible Energy, 1998;" 1. Nonfuel (Feedstock) Use of Combustible Energy, 1998;" " Level: National Data; " " Row: Selected SIC Codes; Column: Energy Sources;" " Unit: Physical Units or Btu." " "," "," "," "," "," "," "," "," "," "," ",," " " "," ",,,,,,,"Coke" " "," "," ","Residual","Distillate","Natural Gas(c)","LPG and","Coal","and Breeze"," ","RSE" "SIC"," ","Total","Fuel Oil","Fuel Oil(b)","(billion","NGL(d)","(million","(million","Other(e)","Row"

186

" Column: Energy-Consumption Ratios;"  

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

3 Consumption Ratios of Fuel, 2006;" 3 Consumption Ratios of Fuel, 2006;" " Level: National Data; " " Row: Values of Shipments within NAICS Codes;" " Column: Energy-Consumption Ratios;" " Unit: Varies." ,,,,"Consumption" ,,,"Consumption","per Dollar" ,,"Consumption","per Dollar","of Value" "NAICS",,"per Employee","of Value Added","of Shipments" "Code(a)","Economic Characteristic(b)","(million Btu)","(thousand Btu)","(thousand Btu)" ,,"Total United States" " 311 - 339","ALL MANUFACTURING INDUSTRIES"

187

" Row: NAICS Codes; Column: Energy Sources;"  

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

4 Number of Establishments by Offsite-Produced Fuel Consumption, 2002;" 4 Number of Establishments by Offsite-Produced Fuel Consumption, 2002;" " Level: National Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Establishment Counts." " "," "," ",," "," "," "," "," "," "," "," ",," " " "," ","Any",,,,,,,,,"RSE" "NAICS"," ","Energy",,"Residual","Distillate","Natural","LPG and",,"Coke"," ","Row" "Code(a)","Subsector and Industry","Source(b)","Electricity(c)","Fuel Oil","Fuel Oil(d)","Gas(e)","NGL(f)","Coal","and Breeze","Other(g)","Factors"

188

" Column: Energy-Consumption Ratios;"  

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

3 Consumption Ratios of Fuel, 2002;" 3 Consumption Ratios of Fuel, 2002;" " Level: National Data; " " Row: Values of Shipments within NAICS Codes;" " Column: Energy-Consumption Ratios;" " Unit: Varies." " "," ",,,"Consumption"," " " "," ",,"Consumption","per Dollar" " "," ","Consumption","per Dollar","of Value","RSE" "NAICS",,"per Employee","of Value Added","of Shipments","Row" "Code(a)","Economic Characteristic(b)","(million Btu)","(thousand Btu)","(thousand Btu)","Factors"

189

" Row: NAICS Codes; Column: Energy Sources;"  

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

4 Number of Establishments by Fuel Consumption, 2002;" 4 Number of Establishments by Fuel Consumption, 2002;" " Level: National Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Establishment Counts." " "," "," ",," "," "," "," "," "," "," "," ",," " " "," ","Any",,,,,,,,,"RSE" "NAICS"," ","Energy","Net","Residual","Distillate","Natural","LPG and",,"Coke"," ","Row" "Code(a)","Subsector and Industry","Source(b)","Electricity(c)","Fuel Oil","Fuel Oil(d)","Gas(e)","NGL(f)","Coal","and Breeze","Other(g)","Factors"

190

" Row: NAICS Codes; Column: Energy Sources;"  

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

2.4 Number of Establishments by Nonfuel (Feedstock) Use of Combustible Energy, 2006;" 2.4 Number of Establishments by Nonfuel (Feedstock) Use of Combustible Energy, 2006;" " Level: National Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Establishment Counts." " "," "," "," "," "," "," "," "," "," ",," " " "," ","Any Combustible" "NAICS"," ","Energy","Residual","Distillate",,"LPG and",,"Coke"," " "Code(a)","Subsector and Industry","Source(b)","Fuel Oil","Fuel Oil(c)","Natural Gas(d)","NGL(e)","Coal","and Breeze","Other(f)"

191

" Row: NAICS Codes; Column: Electricity Components;"  

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

1.1 Electricity: Components of Net Demand, 2006;" 1.1 Electricity: Components of Net Demand, 2006;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Electricity Components;" " Unit: Million Kilowatthours." " "," " " "," ",,,"Total ","Sales and","Net Demand" "NAICS"," ",,"Transfers ","Onsite","Transfers","for" "Code(a)","Subsector and Industry","Purchases","In(b)","Generation(c)","Offsite","Electricity(d)" ,,"Total United States" 311,"Food",73242,309,4563,111,78003

192

" Row: NAICS Codes; Column: Energy Sources;"  

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

6 Quantity of Purchased Energy Sources, 2002;" 6 Quantity of Purchased Energy Sources, 2002;" " Level: National and Regional Data;" " Row: NAICS Codes; Column: Energy Sources;" " Unit: Physical Units or Btu." " "," "," ",," "," "," "," "," "," "," "," ",," " " "," ",,,,,,,,"Coke" " "," "," ",,"Residual","Distillate","Natural","LPG and","Coal","and Breeze"," ","RSE" "NAICS"," ","Total","Electricity","Fuel Oil","Fuel Oil(b)"," Gas(c)","NGL(d)","(million","(million ","Other(e)","Row"

193

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

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

2. Nonfuel (Feedstock) Use of Combustible Energy, 1998;" 2. Nonfuel (Feedstock) Use of Combustible Energy, 1998;" " Level: National Data; " " Row: Selected SIC Codes; Column: Energy Sources;" " Unit: Trillion Btu." " "," "," "," "," "," "," "," "," "," "," ",," " " "," ",,,,,,,,,"RSE" "SIC"," "," ","Residual","Distillate",,"LPG and",,"Coke"," ","Row" "Code(a)","Major Group and Industry","Total","Fuel Oil","Fuel Oil(b)","Natural Gas(c)","NGL(d)","Coal","and Breeze","Other(e)","Factors"

194

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

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

S4.1. Offsite-Produced Fuel Consumption, 1998;" S4.1. Offsite-Produced Fuel Consumption, 1998;" " Level: National Data; " " Row: Selected SIC Codes; Column: Energy Sources;" " Unit: Physical Units or Btu." " "," "," ",," "," "," "," "," "," "," "," ",," " " "," ",,,,,,,,"Coke" " "," "," ",,"Residual","Distillate","Natural Gas(d)","LPG and","Coal","and Breeze"," ","RSE" "SIC"," ","Total","Electricity(b)","Fuel Oil","Fuel Oil(c)","(billion","NGL(e)","(million","(million","Other(f)","Row"

195

EXPERIMENTAL ION EXCHANGE COLUMN WITH SUPERLIG 639 AND SIMULANT FORMULATION  

SciTech Connect

SuperLig639 ion exchange resin was tested as a retrieval mechanism for pertechnetate, through decontamination of a perrhenate spiked 5M Simple Average Na{sup +} Mass Based Simulant. Testing included batch contacts and a three-column ion exchange campaign. A decontamination of perrhenate exceeding 99% from the liquid feed was demonstrated. Analysis of the first formulation of a SBS/WESP simulant found unexpectedly low concentrations of soluble aluminum. Follow-on work will complete the formulation.

Morse, Megan; Nash, C.

2013-08-26T23:59:59.000Z

196

Semiclassical approximation to supersymmetric quantum gravity  

SciTech Connect

We develop a semiclassical approximation scheme for the constraint equations of supersymmetric canonical quantum gravity. This is achieved by a Born-Oppenheimer type of expansion, in analogy to the case of the usual Wheeler-DeWitt equation. The formalism is only consistent if the states at each order depend on the gravitino field. We recover at consecutive orders the Hamilton-Jacobi equation, the functional Schroedinger equation, and quantum gravitational correction terms to this Schroedinger equation. In particular, the following consequences are found: (i) the Hamilton-Jacobi equation and therefore the background spacetime must involve the gravitino, (ii) a (many-fingered) local time parameter has to be present on super Riem {sigma} (the space of all possible tetrad and gravitino fields) (iii) quantum supersymmetric gravitational corrections affect the evolution of the very early Universe. The physical meaning of these equations and results, in particular, the similarities to and differences from the pure bosonic case, are discussed.

Kiefer, Claus; Lueck, Tobias; Moniz, Paulo [Institut fuer Theoretische Physik, Universitaet zu Koeln, Zuelpicher Strasse 77, 50937 Cologne (Germany); Astronomy Unit, School of Mathematical Sciences, Queen Mary College, University of London, Mile End Road, London E1 4NS (United Kingdom)

2005-08-15T23:59:59.000Z

197

Generic sequential sampling for metamodel approximations  

SciTech Connect

Metamodels approximate complex multivariate data sets from simulations and experiments. These data sets often are not based on an explicitly defined function. The resulting metamodel represents a complex system's behavior for subsequent analysis or optimization. Often an exhaustive data search to obtain the data for the metalnodel is impossible, so an intelligent sampling strategy is necessary. While inultiple approaches have been advocated, the majority of these approaches were developed in support of a particular class of metamodel, known as a Kriging. A more generic, cotninonsense approach to this problem allows sequential sampling techniques to be applied to other types of metamodeis. This research compares recent search techniques for Kriging inetamodels with a generic, inulti-criteria approach combined with a new type of B-spline metamodel. This B-spline metamodel is competitive with prior results obtained with a Kriging metamodel. Furthermore, the results of this research highlight several important features necessary for these techniques to be extended to more complex domains.

Turner, C. J. (Cameron J.); Campbell, M. I. (Matthew I.)

2003-01-01T23:59:59.000Z

198

Heat flow in the postquasistatic approximation  

Science Conference Proceedings (OSTI)

We apply the postquasistatic approximation to study the evolution of spherically symmetric fluid distributions undergoing dissipation in the form of radial heat flow. For a model that corresponds to an incompressible fluid departing from the static equilibrium, it is not possible to go far from the initial state after the emission of a small amount of energy. Initially collapsing distributions of matter are not permitted. Emission of energy can be considered as a mechanism to avoid the collapse. If the distribution collapses initially and emits one hundredth of the initial mass only the outermost layers evolve. For a model that corresponds to a highly compressed Fermi gas, only the outermost shell can evolve with a shorter hydrodynamic time scale.

Rodriguez-Mueller, B. [Computational Science Research Center, College of Sciences, San Diego State University, San Diego, California (United States); Peralta, C. [Deutscher Wetterdienst, Frankfurter Strasse 135, 63067 Offenbach (Germany); School of Physics, University of Melbourne, Parkville, VIC 3010 (Australia); Barreto, W. [Centro de Fisica Fundamental, Facultad de Ciencias, Universidad de Los Andes, Merida (Venezuela, Bolivarian Republic of); Rosales, L. [Laboratorio de Fisica Computacional, Universidad Experimental Politecnica, 'Antonio Jose de Sucre', Puerto Ordaz (Venezuela, Bolivarian Republic of)

2010-08-15T23:59:59.000Z

199

Engineered Barrier Systems Thermal-Hydraulic-Chemical Column Test Report  

SciTech Connect

The Engineered Barrier System (EBS) Thermal-Hydraulic-Chemical (THC) Column Tests provide data needed for model validation. The EBS Degradation, Flow, and Transport Process Modeling Report (PMR) will be based on supporting models for in-drift THC coupled processes, and the in-drift physical and chemical environment. These models describe the complex chemical interaction of EBS materials, including granular materials, with the thermal and hydrologic conditions that will be present in the repository emplacement drifts. Of particular interest are the coupled processes that result in mineral and salt dissolution/precipitation in the EBS environment. Test data are needed for thermal, hydrologic, and geochemical model validation and to support selection of introduced materials (CRWMS M&O 1999c). These column tests evaluated granular crushed tuff as potential invert ballast or backfill material, under accelerated thermal and hydrologic environments. The objectives of the THC column testing are to: (1) Characterize THC coupled processes that could affect performance of EBS components, particularly the magnitude of permeability reduction (increases or decreases), the nature of minerals produced, and chemical fractionation (i.e., concentrative separation of salts and minerals due to boiling-point elevation). (2) Generate data for validating THC predictive models that will support the EBS Degradation, Flow, and Transport PMR, Rev. 01.

W.E. Lowry

2001-12-13T23:59:59.000Z

200

Independent Oversight Inspection, Argonne National Laboratory - East,  

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

Independent Oversight Inspection, Argonne National Laboratory - Independent Oversight Inspection, Argonne National Laboratory - East, Summary Report - May 2002 Independent Oversight Inspection, Argonne National Laboratory - East, Summary Report - May 2002 May 2002 Inspection of Environment, Safety, and Health and Emergency Management at the Argonne National Laboratory - East The Secretary of Energy's Office of Independent Oversight and Performance Assurance (OA) conducted an inspection of environment, safety, and health (ES&H) programs and emergency management programs at the Department of Energy's (DOE) Argonne National Laboratory (ANL) in April and May 2002. The inspection was performed as a joint effort by the OA Office of Environment, Safety and Health Evaluations and the Office of Emergency Management Oversight.

Note: This page contains sample records for the topic "independent column approximation" 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

Independent Oversight Review, Lawrence Livermore National Laboratory -  

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

Lawrence Livermore National Lawrence Livermore National Laboratory - September 2011 Independent Oversight Review, Lawrence Livermore National Laboratory - September 2011 September 2011 Review of Integrated Safety Management System Effectiveness at Lawrence Livermore National Laboratory The purpose of this review was to assess the effectiveness of the integrated safety management system (ISMS) established and implemented by Lawrence Livermore National Laboratory (LLNL). Independent Oversight Review, Lawrence Livermore National Laboratory - September 2011 More Documents & Publications Independent Oversight Inspection of Environment, Safety, and Health Management at the Lawrence Livermore National Laboratory, Technical Appendices, Volume II, December 2004 Independent Oversight Inspection, Lawrence Livermore National Laboratory,

202

Independent Oversight Review, West Valley Demonstration Project  

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

Independent Oversight Review, West Valley Demonstration Project Independent Oversight Review, West Valley Demonstration Project Transportation - September 2000 Independent Oversight Review, West Valley Demonstration Project Transportation - September 2000 September 2000 Transportation Emergency Management Review of the West Valley Demonstration Project (WVDP) and National Transportation Program (NTP)/Transportation Compliance Evaluation/Assistance Program (TCEAP) The U.S. Department of Energy (DOE) Office of Emergency Management Oversight, within the Secretary of Energy's Office of Independent Oversight and Performance Assurance, conducted a transportation emergency management review of the West Valley Demonstration Project (WVDP) and National Transportation Program (NTP)/Transportation Compliance Evaluation/Assistance Program (TCEAP) in September 2000.

203

Independent Oversight Review, Advanced Mixed Waste Treatment...  

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

Review, Advanced Mixed Waste Treatment Project - April 2013 Independent Oversight Review, Advanced Mixed Waste Treatment Project - April 2013 April 2013 Review of Radiation...

204

Midwest Independent Transmission System Operator | Open Energy...  

Open Energy Info (EERE)

Name Midwest Independent Transmission System Operator Place Carmel, IN References SGIC1 No information has been entered for this organization. Add Organization This article is a...

205

Material Independent Design of Photoluminescent Systems Based ...  

Energy Storage Advanced Materials Material Independent Design of Photoluminescent Systems Based on Alignment of Polar Molecules in Charged Surface Oak Ridge ...

206

Financial News for Independent Energy Companies  

U.S. Energy Information Administration (EIA)

Financial News for Independent Energy Companies, First Quarter 2010 1 FINANCIAL NEWS FOR ... reported a large increase in income in the first quarter of 2010 ...

207

Independent Oversight Inspection, Idaho National Laboratory ...  

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

of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), inspected the emergency management program at DOE's Idaho Operations...

208

Independent Oversight Review, Idaho National Laboratory - September...  

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

Evaluations within the U.S. Department of Energy (DOE) Office of Health, Safety and Security (HSS) performed an initial independent assessment of the Battelle Energy...

209

Independent Oversight Assessment , Idaho National Laboratory...  

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

of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), performed an assessment of environmental monitoring and surveillance at...

210

Bell Independent Power Corporation | Open Energy Information  

Open Energy Info (EERE)

search Name Bell Independent Power Corporation Place Pittsford, New York Sector Biofuels, Biomass, Services Product BIP provides engineering, financial and feasibility...

211

Independent Oversight Inspection, Argonne National Laboratory...  

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

Inspection, Argonne National Laboratory - East, Summary Report - May 2002 Independent Oversight Inspection, Argonne National Laboratory - East, Summary Report - May 2002 May 2002...

212

Independent Oversight Inspection, Argonne National Laboratory...  

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

Inspection, Argonne National Laboratory, Volume 1 - May 2005 Independent Oversight Inspection, Argonne National Laboratory, Volume 1 - May 2005 May 2005 Inspection of Environment,...

213

Independent Oversight Review of Integrated Safety Management...  

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

Enforcement and Oversight Independent Oversight Review of Integrated Safety Management System Effectiveness at the Livermore Site Office October 2011 Office of Safety and Emergency...

214

Independent Activity Report, Hanford Waste Treatment Plant -...  

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

Independent Activity Report, Hanford Waste Treatment Plant - February 2011 February 2011 Hanford Waste Treatment Plant Construction Quality Assurance Review ARPT-WTP-2011-002...

215

Independent Activity Report, Lawrence Livermore National Laboratory...  

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

February 2013 Independent Activity Report, Lawrence Livermore National Laboratory - February 2013 February 2013 Lawrence Livermore National Laboratory Operational Drill at the B332...

216

Supplemnental Volume - Independent Oversight Assessment of the...  

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

Security HSS i Independent Oversight Assessment of Safety Culture and Management of Nuclear Safety Concerns at the Hanford Site Waste Treatment and Immobilization Plant...

217

External Independent Review (EIR) Standard Operating Procedure...  

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

Standard Operating Procedure (SOP) External Independent Review (EIR) Standard Operating Procedure (SOP) EIR SOP.pdf More Documents & Publications ICR-ICE Standard Operating...

218

Small Business Independent Market Research Program | National...  

National Nuclear Security Administration (NNSA)

Jobs Our Jobs Working at NNSA Blog Small Business Independent Market Research Program Home > About Us > Our Operations > Acquisition and Project Management > Small Business >...

219

Northern Maine Independent System Administrator (Maine)  

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

The Northern Maine Independent System Administrator (NMISA) is a non-profit entity responsible for the administration of the northern Maine transmission system and electric power markets in...

220

Independent Activity Report, Lawrence Livermore National Laboratory...  

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

October 2012 Lawrence Livermore National Laboratory Site Lead Planning Activities HIAR LLNL-2012-10-23 The purpose of this Office of Health, Safety and Security (HSS) Independent...

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


221

Independent Oversight Inspection, Sandia National Laboratories...  

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

Sandia National Laboratories, Volume 1 - May 2005 Independent Oversight Inspection, Sandia National Laboratories, Volume 1 - May 2005 May 2005 Inspection of Environment, Safety,...

222

Independent Oversight Inspection, Sandia National Laboratories...  

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

9 Independent Oversight Inspection, Sandia National Laboratories - May 2009 May 2009 Inspection of Emergency Management at the Sandia Site Office and Sandia National Laboratories...

223

Independent Activity Report, Sandia National Laboratories - January...  

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

January 2012 Independent Activity Report, Sandia National Laboratories - January 2012 January 2012 Sandia National Laboratories Orientation Visit HIAR-SNL-2012-01-04 The U.S....

224

Independent Oversight Assessment , Idaho National Laboratory...  

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

Assessment , Idaho National Laboratory Site - May 2010 Independent Oversight Assessment , Idaho National Laboratory Site - May 2010 May 2010 Environmental Monitoring at the Idaho...

225

Independent Oversight Inspection, Idaho National Laboratory ...  

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

June 2005 Independent Oversight Inspection, Idaho National Laboratory - June 2005 June 2005 Inspection of Environment, Safety, and Health Programs at the Idaho National Laboratory...

226

Independent Oversight Assessment of Environmental Monitoring...  

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

Assessment of Environmental Monitoring at the Idaho National Laboratory Site May 2010 Office of Independent Oversight Office of Health, Safety and Security Office of Health, Safety...

227

Independent Oversight Inspection, Idaho National Laboratory ...  

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

Inspection, Idaho National Laboratory - August 2007 Independent Oversight Inspection, Idaho National Laboratory - August 2007 August 2007 Inspection of Environment, Safety, and...

228

Independent Oversight Review, Los Alamos National Laboratory...  

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

March 2012 Independent Oversight Review, Los Alamos National Laboratory - March 2012 March 2012 Review of the Los Alamos National Laboratory Nuclear Facility Configuration...

229

Independent Activity Report, West Valley Demonstration Project...  

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

West Valley Demonstration Project - July 2012 Independent Activity Report, New Brunswick Laboratory - November 2011 Orientation Visit to the Paducah Gaseous Diffusion Plant,...

230

A new warmstarting strategy for the primal-dual column generation ...  

E-Print Network (OSTI)

June 22, 2012. Keywords: interior point methods, warmstarting, column generation, linear programming, cutting stock problem. Abstract. This paper presents a...

231

Report on Qiagen Columns with Precipitation versus Packed Bed Technology for Trace Amounts of DNA  

SciTech Connect

The assured limit of detection (LOD), where 100% of the PCR assays are successful, for the Qiagen spin column is dramatically improved when combined with an ethanol precipitation step of the eluted sample. A detailed SOP for the ethanol precipitation was delivered as a separate report. A key finding in the precipitation work was to incubate the ethanol precipitation at -20{sup o}C overnight when concentrating low copy number samples. Combining this modified ethanol precipitation with the Qiagen spin columns, the limit of assured detection was improved by 1-2 orders of magnitude, for the aliquot and assay variables used. The lower limit of detection (defined as when at least 1 assay of 1 aliquot was positive) was only improved by approximately 1 order of magnitude. The packed bed process has the potential of a 20-fold improvement in the limit of detection compared to Qiagen plus precipitation, based on a mass balance analysis for the entire DNA concentration and purification processes. Figure ES1 shows a mass balance for all the DNA processing steps. The packed bed process minimizes losses from elution, precipitation, and pipetting (aliquoting and transferring). Figure ES1 assumes that 100 copies of DNA serve as the input sample. Efficiencies for each step have been estimated based on our experiences or a worst case scenario (for example, a 50% loss was assumed for pipetting). Table ES1 summarizes the number of copies that are the input template for PCR assuming 100 copies of DNA are processed through the three options detailed in Figure ES1.Theoretically a 20-fold increase in the number of starting copies in the PCR reaction is gained when the DNA is concentrated, purified and then amplified directly on the surface of the beads in the packed bed.

Wheeler, E K; Erler, A M; Seiler, A

2008-02-05T23:59:59.000Z

232

Comonotonic approximations for optimal portfolio selection problems  

E-Print Network (OSTI)

We investigate multiperiod portfolio selection problems in a Black & Scholes type market where a basket of 1 riskfree and m risky securities are traded continuously. We look for the optimal allocation of wealth within the class of constant mix portfolios. First, we consider the portfolio selection problem of a decision maker who invests money at predetermined points in time in order to obtain a target capital at the end of the time period under consideration. A second problem concerns a decision maker who invests some amount of money (the initial wealth or provision) in order to be able to fullfil a series of future consumptions or payment obligations. Several optimality criteria and their interpretation within Yaaris dual theory of choice under risk are presented. For both selection problems, we propose accurate approximations based on the concept of comonotonicity, as studied in Dhaene, Denuit, Goovaerts, Kaas & Vyncke (2002 a,b). Our analytical approach avoids simulation, and hence reduces the computing effort drastically. 1

J. Dhaene; S. Vanduffel; M. J. Goovaerts; R. Kaas; D. Vyncke

2005-01-01T23:59:59.000Z

233

Estimation of seismic-induced demands on column splices with a neural network model  

Science Conference Proceedings (OSTI)

The current seismic design specification (AISC 341-05) requires that column splices in moment frames, when not made using complete joint penetration (CJP) welds, be designed to develop the flexural strength of the smaller connected column and the shear ... Keywords: Column splice, Neural network, Seismic design, Steel moment frame

Bulent Akbas; Jay Shen; Thomas A. Sabol

2011-12-01T23:59:59.000Z

234

Independent Communication and Outreach Stakeholder Satisfaction Survey  

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

2 2 Prepared for U.S. Department of Energy Office of Legacy Management December 2012 Independent Communication and Outreach Stakeholder Satisfaction Survey Independent Communication and Outreach Stakeholder Satisfaction Survey December 2012 Table of Contents List of Figures ............................................................................................................................................. iii List of Tables .............................................................................................................................................. iii Executive Summary .................................................................................................................................... v 1. Introduction............................................................................................................................................ 1

235

Independent Specific Administrative Controls Review, Richland Operations  

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

Independent Specific Administrative Controls Review, Richland Independent Specific Administrative Controls Review, Richland Operations Office - December 2010 Independent Specific Administrative Controls Review, Richland Operations Office - December 2010 December 2010 Specific Administrative Controls Review with the Office of Environmental Management at DOE-Richland Operations Office The U.S. Department of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security, participated in the Office of Environmental Management Office of Standards and Quality Assurance, EM-23, review of Specific Administrative Controls (SAC) at the Hanford Site. The EM-23 review included selected programs at the Hanford Site that are under the auspices of the DOE Richland Operations Office. Independent Specific Administrative Controls Review, Richland Operations

236

Independent Natural Resources Inc | Open Energy Information  

Open Energy Info (EERE)

Natural Resources Inc Natural Resources Inc Jump to: navigation, search Name Independent Natural Resources Inc Place Eden Prairie, Minnesota Zip 55344 Product Designer of a wave converter system. Has patented the SEADOG Pump which uses buoyancy to convert ave energy to mechanical energy. References Independent Natural Resources Inc[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This company is listed in the Marine and Hydrokinetic Technology Database. This article is a stub. You can help OpenEI by expanding it. Independent Natural Resources Inc is a company located in Eden Prairie, Minnesota . References ↑ "Independent Natural Resources Inc" Retrieved from "http://en.openei.org/w/index.php?title=Independent_Natural_Resources_Inc&oldid=678906"

237

Independent Oversight Special Review, Headquarters - August 2008 |  

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

Independent Oversight Special Review, Headquarters - August 2008 Independent Oversight Special Review, Headquarters - August 2008 Independent Oversight Special Review, Headquarters - August 2008 August 2008 Review of Construction Safety and Health Programs This special review of construction safety was performed by the Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), to provide feedback to DOE line management and contractors on the effectiveness of line organizations at DOE sites in implementing construction safety requirements. This special review is based on data collected over the past three years (covering the timeframe from late 2005 to early 2008) during scheduled inspections performed by Independent Oversight's Office of Environment, Safety and Health Evaluations, at the

238

Lessons Learned from Independent Verification Activities  

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

Demonstration Demonstration Oak Ridge Institute for Science and Education - Independent Verification Lessons Learned IV - performed at nine DOE sites from 2004 to 2008 Page 1 of 2 Oak Ridge Institute for Science and Education Multiple Sites Lessons Learned from Independent Verification Activities Challenge The Department of Energy clears property from radiological control after the property has been demonstrated to meet the Department's stringent radiation protection requirements. Radiological surveys are used to demonstrate compliance with the requirements. Independent verification (IV) activities are conducted by an independent third party as a quality check on radiological surveys procedures and practices. The Oak Ridge Institute for Science and Education (ORISE) performs independent verification for the Department. In this lessons learned report, ORISE summarizes their

239

Independent Oversight Inspection, Pacific Northwest National Laboratory -  

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

Independent Oversight Inspection, Pacific Northwest National Independent Oversight Inspection, Pacific Northwest National Laboratory - December 2003 Independent Oversight Inspection, Pacific Northwest National Laboratory - December 2003 December 2003 Inspection of Environment, Safety, and Health Management at the Pacific Northwest National Laboratory The Secretary of Energy's Office of Independent Oversight and Performance Assurance (OA) conducted an inspection of environment, safety, and health (ES&H) at the U.S. Department of Energy (DOE) Pacific Northwest National Laboratory (PNNL) during November and December 2003. The inspection was performed by the OA Office of Environment, Safety and Health Evaluations. Overall, implementation of ISM at PNNL has improved noticeably since the 1998 DOE Headquarters independent oversight evaluation. This improvement is

240

THE COLUMN DENSITY VARIANCE-M{sub s} RELATIONSHIP  

SciTech Connect

Although there is a wealth of column density tracers for both the molecular and diffuse interstellar medium, there are few observational studies investigating the relationship between the density variance ({sigma}{sup 2}) and the sonic Mach number (M{sub s}). This is in part due to the fact that the {sigma}{sup 2}-M{sub s} relationship is derived, via MHD simulations, for the three-dimensional (3D) density variance only, which is not a direct observable. We investigate the utility of a 2D column density {sigma}{sub {Sigma}/{Sigma}0}{sup 2}-M{sub s} relationship using solenoidally driven isothermal MHD simulations and find that the best fit follows closely the form of the 3D density {sigma}{sub {rho}/{rho}0}{sup 2}-M{sub s} trend but includes a scaling parameter A such that {sigma}{sub ln({Sigma}/{Sigma}o)} = A x ln(1+b{sup 2} M{sub s}{sup 2}), where A = 0.11 and b = 1/3. This relation is consistent with the observational data reported for the Taurus and IC 5146 molecular clouds with b = 0.5 and A = 0.16, and b = 0.5 and A = 0.12, respectively. These results open up the possibility of using the 2D column density values of {sigma}{sup 2} for investigations of the relation between the sonic Mach number and the probability distribution function (PDF) variance in addition to existing PDF sonic Mach number relations.

Burkhart, Blakesley; Lazarian, A. [Astronomy Department, University of Wisconsin, Madison, 475 N. Charter St., WI 53706 (United States)

2012-08-10T23:59:59.000Z

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


241

" Row: NAICS Codes; Column: Energy Sources;"  

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

1 Fuel Consumption, 2006;" 1 Fuel Consumption, 2006;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Physical Units or Btu." ,,,,,,,,,,,,"Coke" ,,,,"Net",,"Residual","Distillate","Natural Gas(d)",,"LPG and","Coal","and Breeze" "NAICS",,"Total",,"Electricity(b)",,"Fuel Oil","Fuel Oil(c)","(billion",,"NGL(e)","(million","(million","Other(f)" "Code(a)","Subsector and Industry","(trillion Btu)",,"(million kWh)",,"(million bbl)","(million bbl)","cu ft)",,"(million bbl)","short tons)","short tons)","(trillion Btu)"

242

" Row: NAICS Codes; Column: Energy Sources;"  

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

2 Fuel Consumption, 2006;" 2 Fuel Consumption, 2006;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Trillion Btu." "NAICS",,,,"Net",,"Residual","Distillate",,,"LPG and",,,"Coke" "Code(a)","Subsector and Industry","Total",,"Electricity(b)",,"Fuel Oil","Fuel Oil(c)","Natural Gas(d)",,"NGL(e)",,"Coal","and Breeze","Other(f)" ,,"Total United States" 311,"Food",1186,,251,,26,16,635,,3,,147,1,107 3112," Grain and Oilseed Milling",317,,53,,2,1,118,,"*",,114,0,30

243

" Row: NAICS Codes; Column: Energy Sources;"  

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

1 Offsite-Produced Fuel Consumption, 2010;" 1 Offsite-Produced Fuel Consumption, 2010;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Physical Units or Btu." ,,,,,,,,,"Coke" ,,,,"Residual","Distillate","Natural Gas(d)","LPG and","Coal","and Breeze" "NAICS",,"Total","Electricity(b)","Fuel Oil","Fuel Oil(c)","(billion","NGL(e)","(million","(million","Other(f)" "Code(a)","Subsector and Industry","(trillion Btu)","(million kWh)","(million bbl)","(million bbl)","cu ft)","(million bbl)","short tons)","short tons)","(trillion Btu)"

244

" Row: NAICS Codes; Column: Energy Sources;"  

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

2 Offsite-Produced Fuel Consumption, 2010;" 2 Offsite-Produced Fuel Consumption, 2010;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Trillion Btu." "NAICS",,,,"Residual","Distillate",,"LPG and",,"Coke" "Code(a)","Subsector and Industry","Total","Electricity(b)","Fuel Oil","Fuel Oil(c)","Natural Gas(d)","NGL(e)","Coal","and Breeze","Other(f)" ,,"Total United States" 311,"Food",1113,258,12,22,579,5,182,2,54 3112," Grain and Oilseed Milling",346,57,"*",1,121,"*",126,0,41

245

" Row: NAICS Codes; Column: Energy Sources;"  

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

2 Offsite-Produced Fuel Consumption, 2006;" 2 Offsite-Produced Fuel Consumption, 2006;" " Level: National and Regional Data; " " Row: NAICS Codes; Column: Energy Sources;" " Unit: Trillion Btu." "NAICS",,,,,,"Residual","Distillate",,,"LPG and",,,"Coke" "Code(a)","Subsector and Industry","Total",,"Electricity(b)",,"Fuel Oil","Fuel Oil(c)","Natural Gas(d)",,"NGL(e)",,"Coal","and Breeze","Other(f)" ,,"Total United States" 311,"Food",1124,,251,,26,16,635,,3,,147,1,45 3112," Grain and Oilseed Milling",316,,53,,2,1,118,,"*",,114,0,28

246

Basic design and hydrodynamic analysis of three-column TLP and comparison with ISSC TLP  

E-Print Network (OSTI)

Three-column TLP is a new design variation of the common four-column TLP. The objective of this study is to find the hydrodynamic feasibility of the three-column TLP. This accomplished by comparing the three-column design to the ISSC TLP. The ISSC TLP is chosen as the parent TLP and the column diameter, distance between column centers, water depth, environment and pontoon dimensions are kept the same for the ISSC TLP. The initial design shows a satisfactory hydrodynamic characteristic set for the three-column. A detailed coupled analysis of the platform is done using Higher Order Boundary Element Application (HOBEM). The wave excitation forces, responses and average drift forces are computed for wave heading 0 degree and 30 degree. A non-linear quasi-static study is done for the tendons. The three-column design is compared with the four-column design and the comparison shows the two are hydrodynamically similar. Three-column TLP can be considered as a viable alternative for four-column TLP.

Sebastian, Abhilash

2000-01-01T23:59:59.000Z

247

AN ORIFICE PLATE PULSE COLUMN FOR LIQUID-LIQUID EXTRACTION (thesis)  

SciTech Connect

A study was made of the performance of an orifice plate pulse column which is essentially a spray column containing internal constrictions in the form of orifices. The chemical system studied was acetic acid-waterhexone, and the variables considered were pulse frequency, throughput, phase continuity, and direction of solute transfer. For comparison purposes, several runs were made with a conventional spray column. Curves are presented showing the effect of the column variables on the column efficiency (HTU). The trends observed are explained as being due principally to the competing effects of the area for mass transfer and back-mixing. Photographs of a typical column section show qualitatively the effect of the important column variables. (auth)

O' Brien, D.C.

1954-08-23T23:59:59.000Z

248

Independent Activity Report, Lawrence Livermore National Laboratory -  

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

October 2012 October 2012 Independent Activity Report, Lawrence Livermore National Laboratory - October 2012 October 2012 Lawrence Livermore National Laboratory Site Lead Planning Activities [HIAR LLNL-2012-10-23] The purpose of this Office of Health, Safety and Security (HSS) Independent Oversight activity was to maintain site operational awareness of key nuclear safety performance areas, monitor ongoing site oversight and planning activities for Lawrence Livermore National Laboratory (LLNL) nuclear facilities, and identify and initiate coordination of future HSS oversight activities at the site, including planned HSS targeted reviews planned for Fiscal Year (FY) 2013. Independent Activity Report, Lawrence Livermore National Laboratory - October 2012 More Documents & Publications

249

Independent Oversight Inspection, Brookhaven National Laboratory - November  

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

November 2007 November 2007 Independent Oversight Inspection, Brookhaven National Laboratory - November 2007 November 2007 Inspection of Environment, Safety, and Health Programs at the Brookhaven National Laboratory The U.S. Department of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), inspected environment, safety, and health (ES&H) programs at the DOE Brookhaven Site Office (BHSO) and Brookhaven National Laboratory (BNL) during August and September 2007. The ES&H inspection was performed by Independent Oversight's Office of Environment, Safety and Health Evaluations. BHSO has established mechanisms to gather performance data and provide feedback to laboratory management, which is resulting in improvements

250

Independent Oversight Inspection, Lawrence Livermore National Laboratory -  

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

Inspection, Lawrence Livermore National Inspection, Lawrence Livermore National Laboratory - May 2007 Independent Oversight Inspection, Lawrence Livermore National Laboratory - May 2007 May 2007 Inspection of Environment, Safety, and Health Programs at the Lawrence Livermore National Laboratory The U.S. Department of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), conducted an inspection of environment, safety, and health (ES&H) programs at the DOE Lawrence Livermore National Laboratory (LLNL) during January and February 2007. The inspection was performed by Independent Oversight's Office of Environment, Safety and Health Evaluations. LSO's oversight has matured, and operational awareness and assessments have improved in gathering data and identifying deficiencies. LSO

251

Independent Activity Report, Lawrence Livermore National Laboratory -  

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

Activity Report, Lawrence Livermore National Laboratory Activity Report, Lawrence Livermore National Laboratory - October 2012 Independent Activity Report, Lawrence Livermore National Laboratory - October 2012 October 2012 Lawrence Livermore National Laboratory Site Lead Planning Activities [HIAR LLNL-2012-10-23] The purpose of this Office of Health, Safety and Security (HSS) Independent Oversight activity was to maintain site operational awareness of key nuclear safety performance areas, monitor ongoing site oversight and planning activities for Lawrence Livermore National Laboratory (LLNL) nuclear facilities, and identify and initiate coordination of future HSS oversight activities at the site, including planned HSS targeted reviews planned for Fiscal Year (FY) 2013. Independent Activity Report, Lawrence Livermore National Laboratory -

252

Independent Oversight Inspection, Lawrence Berkeley National Laboratory -  

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

Berkeley National Berkeley National Laboratory - April 2009 Independent Oversight Inspection, Lawrence Berkeley National Laboratory - April 2009 April 2009 Inspection of Environment, Safety, and Health Programs at the Lawrence Berkeley National Laboratory The U.S. Department of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), inspected environment, safety, and health (ES&H) programs at the DOE Lawrence Berkeley National Laboratory (LBNL) during January through February 2009. The inspection was performed by the Office of Independent Oversight's Office of Environment, Safety and Health Evaluations. The contractor assurance system has been improved and is identifying deficiencies and improving LBNL ES&H processes and performance. LBNL has

253

Independent Oversight Inspection, Brookhaven National Laboratory -  

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

September 2008 September 2008 Independent Oversight Inspection, Brookhaven National Laboratory - September 2008 September 2008 Inspection of Emergency Management at the Brookhaven Site Office and Brookhaven National Laboratory The U.S. Department of Energy (DOE) Office of Independent Oversight inspected the emergency management program at DOE's Brookhaven National Laboratory (BNL) in June/July 2008. The inspection was performed by Independent Oversight's Office of Emergency Management Oversight (HS-63). This 2008 inspection found that hazardous material inventories remain low, and the program has been significantly improved by the issuance of a hazards survey, EPHAs, and revised emergency plan, as well as other upgraded program plans and procedures. Additionally, the EOC is better

254

The Two-Column Aerosol Project (TCAP) Science Plan  

Science Conference Proceedings (OSTI)

The Two-Column Aerosol Project (TCAP) field campaign will provide a detailed set of observations with which to (1) perform radiative and cloud condensation nuclei (CCN) closure studies, (2) evaluate a new retrieval algorithm for aerosol optical depth (AOD) in the presence of clouds using passive remote sensing, (3) extend a previously developed technique to investigate aerosol indirect effects, and (4) evaluate the performance of a detailed regional-scale model and a more parameterized global-scale model in simulating particle activation and AOD associated with the aging of anthropogenic aerosols. To meet these science objectives, the Atmospheric Radiation Measurement (ARM) Climate Research Facility will deploy the ARM Mobile Facility (AMF) and the Mobile Aerosol Observing System (MAOS) on Cape Cod, Massachusetts, for a 12-month period starting in the summer of 2012 in order to quantify aerosol properties, radiation, and cloud characteristics at a location subject to both clear and cloudy conditions, and clean and polluted conditions. These observations will be supplemented by two aircraft intensive observation periods (IOPs), one in the summer and a second in the winter. Each IOP will deploy one, and possibly two, aircraft depending on available resources. The first aircraft will be equipped with a suite of in situ instrumentation to provide measurements of aerosol optical properties, particle composition and direct-beam irradiance. The second aircraft will fly directly over the first and use a multi-wavelength high spectral resolution lidar (HSRL) and scanning polarimeter to provide continuous optical and cloud properties in the column below.

Berkowitz, CM; Berg, LK; Cziczo, DJ; Flynn, CJ; Kassianov, EI; Fast, JD; Rasch, PJ; Shilling, JE; Zaveri, RA; Zelenyuk, A; Ferrare, RA; Hostetler, CA; Cairns, B; Russell, PB; Ervens, B

2011-07-27T23:59:59.000Z

255

Small Business Independent Market Research Program | National...  

National Nuclear Security Administration (NNSA)

as well as all other information pertinent to the needs of the NNSA program. Each market research effort is independent and its timeline is driven by the program needs. If no...

256

Independent Oversight Inspection, Idaho National Laboratory ...  

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

of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), inspected environment, safety, and health (ES&H) programs at the DOE Idaho...

257

A Class of Semi-Lagrangian Approximations for Fluids  

Science Conference Proceedings (OSTI)

This paper discusses a class of finite-difference approximations to the evolution equations of fluid dynamics. These approximations derive from elementary properties of differential forms. Values of a fluid variable ? at any two points of a space-...

Piotr K. Smolarkiewicz; Janusz A. Pudykiewicz

1992-11-01T23:59:59.000Z

258

Weak Pressure Gradient Approximation and Its Analytical Solutions  

Science Conference Proceedings (OSTI)

A weak pressure gradient (WPG) approximation is introduced for parameterizing supradomain-scale (SDS) dynamics, and this method is compared to the relaxed form of the weak temperature gradient (WTG) approximation in the context of 3D, linearized, ...

David M. Romps

2012-09-01T23:59:59.000Z

259

Four-Stream Isosector Approximation for Solar Radiative Transfer  

Science Conference Proceedings (OSTI)

For radiative transfer in a thin atmosphere, an analytical four-stream isosector approximation for solar radiative transfer is presented. This approximation method is based on the assumption of four spherical sectors of isotropic intensities. ...

J. Li; J. S. Dobbie

1998-02-01T23:59:59.000Z

260

Dynamic Enthalpy, Conservative Temperature, and the Seawater Boussinesq Approximation  

Science Conference Proceedings (OSTI)

A new seawater Boussinesq system is introduced, and it is shown that this approximation to the equations of motion of a compressible binary solution has an energy conservation law that is a consistent approximation to the Bernoulli equation of ...

William R. Young

2010-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "independent column approximation" 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

Table A3. Approximate Heat Content of Petroleum Consumption and ...  

U.S. Energy Information Administration (EIA)

Table A3. Approximate Heat Content of Petroleum Consumption and Biofuels Production, 1949-2011 (Million Btu per Barrel)

262

COMPUTATIONAL AND EXPERIMENTAL MODELING OF SLURRY BUBBLE COLUMN REACTORS  

Science Conference Proceedings (OSTI)

The objective of this study was to develop a predictive experimentally verified computational fluid dynamics (CFD) model for gas-liquid-solid flow. A three dimensional transient computer code for the coupled Navier-Stokes equations for each phase was developed and is appended in this report. The principal input into the model is the viscosity of the particulate phase which was determined from a measurement of the random kinetic energy of the 800 micron glass beads and a Brookfield viscometer. The details are presented in the attached paper titled ''CFD Simulation of Flow and Turbulence in a Slurry Bubble Column''. This phase of the work is in press in a referred journal (AIChE Journal, 2002) and was presented at the Fourth International Conference on Multiphase Flow (ICMF 2001) in New Orleans, May 27-June 1, 2001 (Paper No. 909). The computed time averaged particle velocities and concentrations agree with Particle Image Velocimetry (PIV) measurements of velocities and concentrations, obtained using a combination of gamma-ray and X-ray densitometers, in a slurry bubble column, operated in the bubbly-coalesced fluidization regime with continuous flow of water. Both the experiment and the simulation show a down-flow of particles in the center of the column and up-flow near the walls and nearly uniform particle concentration. Normal and shear Reynolds stresses were constructed from the computed instantaneous particle velocities. The PIV measurement and the simulation produced instantaneous particle velocities. The PIV measurement and the simulation produced similar nearly flat horizontal profiles of turbulent kinetic energy of particles. To better understand turbulence we studied fluidization in a liquid-solid bed. This work was also presented at the Fourth International Conference on Multiphase Flow (ICMF 2001, Paper No. 910). To understand turbulence in risers, measurements were done in the IIT riser with 530 micron glass beads using a PIV technique. This report summarizes the measurements and simulations completed so far. This work will continue under the sponsorship of the National Science Foundation and Dow Corning Corporation. This phase of the work is part of the DOE/Industry/University Multiphase Fluid Dynamics Research Consortium. Optimization of the LaPorte pilot plant reactor was attempted by rearranging the heat exchangers. The paper accepted for presentation at the Sixth World Congress of Chemical Engineering, Melbourne, Australia, September 23-27, 2001 is a part of this report.

Paul C.K. Lam; Isaac K. Gamwo; Dimitri Gidaspow

2002-05-01T23:59:59.000Z

263

Small Column Ion Exchange Design and Safety Strategy  

SciTech Connect

Small Column Ion Exchange (SCIX) is a transformational technology originally developed by the Department of Energy (DOE) Environmental Management (EM-30) office and is now being deployed at the Savannah River Site (SRS) to significantly increase overall salt processing capacity and accelerate the Liquid Waste System life-cycle. The process combines strontium and actinide removal using Monosodium Titanate (MST), Rotary Microfiltration, and cesium removal using Crystalline Silicotitanate (CST, specifically UOP IONSIV{reg_sign}IE-911 ion exchanger) to create a low level waste stream to be disposed in grout and a high level waste stream to be vitrified. The process also includes preparation of the streams for disposal, e.g., grinding of the loaded CST material. These waste processing components are technically mature and flowsheet integration studies are being performed including glass formulations studies, application specific thermal modeling, and mixing studies. The deployment program includes design and fabrication of the Rotary Microfilter (RMF) assembly, ion-exchange columns (IXCs), and grinder module, utilizing an integrated system safety design approach. The design concept is to install the process inside an existing waste tank, Tank 41H. The process consists of a feed pump with a set of four RMFs, two IXCs, a media grinder, three Submersible Mixer Pumps (SMPs), and all supporting infrastructure including media receipt and preparation facilities. The design addresses MST mixing to achieve the required strontium and actinide removal and to prevent future retrieval problems. CST achieves very high cesium loadings (up to 1,100 curies per gallon (Ci/gal) bed volume). The design addresses the hazards associated with this material including heat management (in column and in-tank), as detailed in the thermal modeling. The CST must be size reduced for compatibility with downstream processes. The design addresses material transport into and out of the grinder and includes provisions for equipment maintenance including remote handling. The design includes a robust set of nuclear safety controls compliant with DOE Standard (STD)-1189, Integration of Safety into the Design Process. The controls cover explosions, spills, boiling, aerosolization, and criticality. Natural Phenomena Hazards (NPH) including seismic event, tornado/high wind, and wildland fire are considered. In addition, the SCIX process equipment was evaluated for impact to existing facility safety equipment including the waste tank itself. SCIX is an innovative program which leverages DOE's technology development capabilities to provide a basis for a successful field deployment.

Huff, T.; Rios-Armstrong, M.; Edwards, R.; Herman, D.

2011-02-07T23:59:59.000Z

264

Weighted trapezoidal approximation-preserving cores of a fuzzy number  

Science Conference Proceedings (OSTI)

Recently, various researchers have proved that approximations of fuzzy numbers may fail to be fuzzy numbers. In this contribution, we suggest a new weighted trapezoidal approximation of an arbitrary fuzzy number, which preserves its cores. We prove that ... Keywords: Core of fuzzy number, Fuzzy numbers, Trapezoidal fuzzy numbers, Weighted approximation

S. Abbasbandy; T. Hajjari

2010-05-01T23:59:59.000Z

265

Curvilinear parabolic approximation for surface wave transformation with wavecurrent interaction  

E-Print Network (OSTI)

Curvilinear parabolic approximation for surface wave transformation with wave­current interaction not be an appropriate method for the purpose of simplifying the curvilinear parabolic approximation of the vector form of the wave­current equation given by Kirby [Higher-order approximations in the parabolic equation method

Kirby, James T.

266

A millikelvin scanning tunneling microscope with two independent scanning systems  

E-Print Network (OSTI)

We describe the design, construction and operation of a scanning tunneling microscope (STM) with two tips that can independently acquire simultaneous scans of a sample. The STM is mounted on a dilution refrigerator and the setup includes vibration isolation, rf-filtered wiring, an ultra high vacuum (UHV) sample preparation chamber and sample transfer mechanism. We present images and spectroscopy taken with superconducting Nb tips with the refrigerator at 35 mK that indicate that the effective temperature of our tips/sample is approximately 184 mK, corresponding to an energy resolution of 16 $\\mu$eV. Atomic resolution topographic images of an Au(100) surface taken with the inner and outer tips were found to have root mean square roughness of 1.75 $\\pm$ 0.01 pm and 3.55 $\\pm$ 0.03 pm respectively.

Roychowdhury, A; Anderson, J R; Lobb, C J; Wellstood, F C; Dreyer, M

2013-01-01T23:59:59.000Z

267

Level: National Data; Row: NAICS Codes; Column: Energy Sources;  

Gasoline and Diesel Fuel Update (EIA)

Next MECS will be fielded in 2015 Table 3.4 Number of Establishments by Fuel Consumption, 2010; Level: National Data; Row: NAICS Codes; Column: Energy Sources; Unit: Establishment Counts. Any NAICS Energy Net Residual Distillate LPG and Coke Code(a) Subsector and Industry Source(b) Electricity(c) Fuel Oil Fuel Oil(d) Natural Gas(e) NGL(f) Coal and Breeze Other(g) Total United States 311 Food 13,269 13,265 144 2,416 10,373 4,039 64 7 1,538 3112 Grain and Oilseed Milling 602 602 9 204 489 268 30 0 140 311221 Wet Corn Milling 59 59 W 28 50 36 15 0 29 31131 Sugar Manufacturing 73 73 3 36 67 12 W 7 14 3114 Fruit and Vegetable Preserving and Specialty Foods 987 987 17 207 839 503 W 0 210 3115 Dairy Products 998 998 12 217 908

268

Microsoft Word - NTS Final Vol 2 two column.doc  

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

EMERGENCY MANAGEMENT INSPECTION EMERGENCY MANAGEMENT INSPECTION OF THE NEVADA TEST SITE Volume II September 21, 2004 i INDEPENDENT OVERSIGHT EMERGENCY MANAGEMENT INSPECTION OF THE NEVADA TEST SITE Volume II Table of Contents Acronyms.....................................................................................................................................................iii 1.0 Introduction ........................................................................................................................................... 1 2.0 Results ................................................................................................................................................... 2 3.0 Conclusions............................................................................................................................................

269

COMPUTATIONAL AND EXPERIMENTAL MODELING OF SLURRY BUBBLE COLUMN REACTORS  

SciTech Connect

The objective if this study was to develop a predictive experimentally verified computational fluid dynamics (CFD) model for gas-liquid-solid flow. A three dimensional transient computer code for the coupled Navier-Stokes equations for each phase was developed. The principal input into the model is the viscosity of the particulate phase which was determined from a measurement of the random kinetic energy of the 800 micron glass beads and a Brookfield viscometer. The computed time averaged particle velocities and concentrations agree with PIV measurements of velocities and concentrations, obtained using a combination of gamma-ray and X-ray densitometers, in a slurry bubble column, operated in the bubbly-coalesced fluidization regime with continuous flow of water. Both the experiment and the simulation show a down-flow of particles in the center of the column and up-flow near the walls and nearly uniform particle concentration. Normal and shear Reynolds stresses were constructed from the computed instantaneous particle velocities. The PIV measurement and the simulation produced instantaneous particle velocities. The PIV measurement and the simulation produced similar nearly flat horizontal profiles of turbulent kinetic energy of particles. This phase of the work was presented at the Chemical Reaction Engineering VIII: Computational Fluid Dynamics, August 6-11, 2000 in Quebec City, Canada. To understand turbulence in risers, measurements were done in the IIT riser with 530 micron glass beads using a PIV technique. The results together with simulations will be presented at the annual meeting of AIChE in November 2000.

Paul Lam; Dimitri Gidaspow

2000-09-01T23:59:59.000Z

270

Independent Oversight Inspection, Hanford Site - September 2006 |  

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

Hanford Site - September 2006 Hanford Site - September 2006 Independent Oversight Inspection, Hanford Site - September 2006 September 2006 Inspection of Environment, Safety, and Health and Emergency Management Programs at the Hanford Site Waste Stabilization and Disposition Project The U.S. Department of Energy (DOE) Office of Independent Oversight, within the Office of Security and Safety Performance Assurance, conducted an inspection of environment, safety, and health (ES&H) programs at the DOE Hanford Site Waste Stabilization and Disposition Project (WSD) during August and September 2006. The inspection was performed by Independent Oversight's Office of Environment, Safety and Health Evaluations. EM senior managers demonstrated that they clearly understand their safety management roles and responsibilities, and are engaged in making safety

271

Independent Oversight Inspection, Stanford Linear Accelerator Center -  

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

Stanford Linear Accelerator Stanford Linear Accelerator Center - January 2007 Independent Oversight Inspection, Stanford Linear Accelerator Center - January 2007 January 2007 Inspection of Environment, Safety, and Health Programs at the Stanford Linear Accelerator Center The U.S. Department of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security, conducted an inspection of environment, safety, and health (ES&H) programs at the DOE Stanford Linear Accelerator Center (SLAC) during October and November 2006. The inspection was performed by Independent Oversight's Office of Environment, Safety and Health Evaluations. Since the 2004 Type A electrical accident, SSO and SLAC have made improvements in many aspects of ES&H programs. However, the deficiencies in

272

Independent Oversight Inspection, Lawrence Livermore National Laboratory -  

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

Lawrence Livermore National Lawrence Livermore National Laboratory - February 2009 Independent Oversight Inspection, Lawrence Livermore National Laboratory - February 2009 February 2009 Inspection of Emergency Management at the Livermore Site Office and Lawrence Livermore National Laboratory The U.S. Department of Energy (DOE) Office of Independent Oversight inspected the emergency management program at DOE's Lawrence Livermore National Laboratory (LLNL) in October/November 2008. The inspection was performed by Independent Oversight's Office of Emergency Management Oversight. This 2008 inspection found that overall, the LLNL emergency management program is, with a few exceptions, well defined and better implemented in most areas than observed during previous inspections, but some implementation weaknesses remain that diminish the ability of the program

273

Independent Oversight Review, Lawrence Livermore National Laboratory -  

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

Lawrence Livermore National Lawrence Livermore National Laboratory - September 2013 Independent Oversight Review, Lawrence Livermore National Laboratory - September 2013 September 2013 Review of the Fire Protection Program at Lawrence Livermore National Laboratory This report documents the results of an independent oversight review of the fire protection program at the Lawrence Livermore National Laboratory. The review was performed June 10-21, 2013, by the U.S. Department of Energy's (DOE) Office of Safety and Emergency Management Evaluations, which is within the DOE Office of Health, Safety and Security. The review was one part of a targeted assessment of fire protection at nuclear facilities across the DOE complex, including National Nuclear Security Administration sites. The purpose of the Independent Oversight targeted assessment was to

274

Independent Oversight Review, Lawrence Livermore National Laboratory -  

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

Lawrence Livermore National Lawrence Livermore National Laboratory - September 2013 Independent Oversight Review, Lawrence Livermore National Laboratory - September 2013 September 2013 Review of the Fire Protection Program at Lawrence Livermore National Laboratory This report documents the results of an independent oversight review of the fire protection program at the Lawrence Livermore National Laboratory. The review was performed June 10-21, 2013, by the U.S. Department of Energy's (DOE) Office of Safety and Emergency Management Evaluations, which is within the DOE Office of Health, Safety and Security. The review was one part of a targeted assessment of fire protection at nuclear facilities across the DOE complex, including National Nuclear Security Administration sites. The purpose of the Independent Oversight targeted assessment was to

275

Independent Oversight Inspection, Thomas Jefferson National Accelerator  

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

Thomas Jefferson National Thomas Jefferson National Accelerator Facility - August 2008 Independent Oversight Inspection, Thomas Jefferson National Accelerator Facility - August 2008 August 2008 Inspection of Environment, Safety and Health Programs at the Thomas Jefferson National Accelerator Facility The U.S. Department of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), inspected environment, safety, and health (ES&H) programs at the DOE Thomas Jefferson Site Office (TJSO) and the Thomas Jefferson National Accelerator Facility (TJNAF) during May through July 2008. The ES&H inspection was performed by Independent Oversight's Office of Environment, Safety and Health Evaluations. In coordination with TJSO, TJNAF has taken a number of actions to develop a

276

Low-frequency plasma conductivity in the average-atom approximation  

E-Print Network (OSTI)

Low-frequency properties of a plasma are examined within the average-atom approximation, which presumes that scattering of a conducting electron on each atom takes place independently of other atoms. The relaxation time tau distinguishes a high-frequency region omega tau > 1, where the single-atom approximation is applicable explicitly, from extreme low frequencies omega tau 1, reproducing the Ziman formula in the static limit, results based on the Kubo-Greenwood formula for high frequencies, and satisfying the conductivity sum-rule precisely. The correspondence between physical processes leading to the conventional Ohm's law and the infrared properties of QED is discussed. The suggested average-atom approach to frequency-dependent conductivity is illustrated by numerical calculations for the an aluminum plasma in the temperature range 2--10 eV.

Kuchiev, M Yu

2008-01-01T23:59:59.000Z

277

Approximate Integrals of rf-driven Particle Motion in Magnetic Field  

DOE Green Energy (OSTI)

For a particle moving in nonuniform magnetic field under the action of an rf wave, ponderomotive effects result from rf-driven oscillations nonlinearly coupled with Larmor rotation. Using Lagrangian and Hamiltonian formalism, we show how, despite this coupling, two independent integrals of the particle motion are approximately conserved. Those are the magnetic moment of free Larmor rotation and the quasi-energy of the guiding center motion parallel to the magnetic field. Under the assumption of non-resonant interaction of the particle with the rf field, these integrals represent adiabatic invariants of the particle motion.

I.Y. Dodin; N.J. Fisch

2004-04-26T23:59:59.000Z

278

Independent Oversight Targeted Review, Sandia National Laboratories -  

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

Targeted Review, Sandia National Laboratories Targeted Review, Sandia National Laboratories - November 2013 Independent Oversight Targeted Review, Sandia National Laboratories - November 2013 December 2013 Targeted Review of Activity-Level Implementation of Radiological Controls at Sandia National Laboratories This report documents the results of an independent oversight targeted review of radiological protection program activity-level implementation for Sandia National Laboratories (SNL), Technical Area V facilities. SNL is managed by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, under contract to the Department of Energy (DOE) and is overseen by the National Nuclear Security Administration and its Sandia Field Office. This targeted review was performed at SNL September 23-27,

279

Independent Oversight Evaluation, Office of Secure Transportation -  

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

Evaluation, Office of Secure Transportation - Evaluation, Office of Secure Transportation - February 2004 Independent Oversight Evaluation, Office of Secure Transportation - February 2004 February 2004 Evaluation of the Office of Secure Transportation Emergency Management Program The Secretary of Energy's Office of Independent Oversight and Performance Assurance (OA) conducted an inspection of emergency management programs at the National Nuclear Security Administration's (NNSA) Office of Secure Transportation (OST) in October 2003. Inspection activities included the observation of the OST annual emergency exercise and reviews of selected emergency management program elements. The exercise demonstrated that the OST emergency response organization could effectively provide for prompt event categorization, DOE and NNSA

280

Independent Oversight Inspection, Portsmouth Gaseous Diffusion Plant -  

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

Portsmouth Gaseous Diffusion Portsmouth Gaseous Diffusion Plant - November 2006 Independent Oversight Inspection, Portsmouth Gaseous Diffusion Plant - November 2006 November 2006 Inspection of Emergency Management at the Portsmouth Gaseous Diffusion Plant The Secretary of Energy's Office of Independent Oversight, within the Office of Security and Safety Performance Assurance, conducted an inspection of the emergency management program at the Portsmouth Gaseous Diffusion Plant (PORTS) in August and September 2006. The coordination of emergency plans and procedures among USEC and DOE contractor organizations has successfully integrated the emergency management programs into a single cohesive program for the PORTS site. Other strengths include accurate hazards surveys that identify applicable

Note: This page contains sample records for the topic "independent column approximation" 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

Independent Statistics & Analysis Drilling Productivity Report  

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

Independent Statistics & Analysis Independent Statistics & Analysis Drilling Productivity Report The six regions analyzed in this report accounted for nearly 90% of domestic oil production growth and virtually all domestic natural gas production growth during 2011-12. December 2013 For key tight oil and shale gas regions U.S. Energy Information Administration Contents Year-over-year summary 2 Bakken 3 Eagle Ford 4 Haynesville 5 Marcellus 6 Niobrara 7 Permian 8 Explanatory notes 9 Sources 10 Bakken Marcellus Niobrara Haynesville Eagle Ford Permian U. S. Energy Information Administration | Drilling Productivity Report 0 400 800 1,200 1,600 2,000 Bakken Eagle Ford Haynesville

282

Independent Activity Report, Washington River Protection Solutions -  

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

Washington River Protection Solutions Washington River Protection Solutions - September 2010 Independent Activity Report, Washington River Protection Solutions - September 2010 September 2010 Participation in the Washington River Protection Solutions, LLC Integrated Safety Management System Annual Review The U.S. Department of Energy, Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), participated in the review of the Washington River Protection Solutions, LLC Integrated Safety Management System Annual Review for 2010. The review was conducted during the period of August 23 to September 2, 2010, and focused on six functional areas: corrective action management, work planning and control, radiological protection, environmental protection, emergency preparedness, and

283

Small Column Ion Exchange at Savannah River Site Technology Readiness Assessment Report  

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

Small Column Ion Exchange Technology at Small Column Ion Exchange Technology at Savannah River Site U.S. Department of Energy Office of Environmental Management Office of Technology Innovation and Development Technology Readiness Assessment Report November 2011 U.S. DOE-EM Office of Technology Innovation and Development November 11, 2011 Small Column Ion Exchange Program Technology Readiness Assessment Page 2 of 112 This page intentionally left blank November 11, 2011 U.S. DOE-EM Office of Technology Innovation and Development Small Column Ion Exchange Program Technology Readiness Assessment Page 3 of 112 APPROVALS ________________________ _ Harry D. Harmon Date

284

Modeling of FRP-jacketed RC columns subject to combined axial and lateral loads  

E-Print Network (OSTI)

Prisms Strengthened Using Carbon Fiber Reinforced PolymerStrengthening Effects with Carbon Fiber Sheet for ConcreteColumns with Continuous Carbon Fiber Jackets: Volume II,

Lee, Chung-Sheng

2006-01-01T23:59:59.000Z

285

Insitu expanding foam based carbon/epoxy sandwich jackets for column retrofit  

E-Print Network (OSTI)

RC Columns with Continuous Carbon Fiber Jackets, Journal ofC. Pantelides, J. Gergely, Carbon Fiber Reinforced Polymerand processing type (i.e. carbon fiber reinforced epoxy with

Danyeur, Alicia

2008-01-01T23:59:59.000Z

286

A new warmstarting strategy for the primal-dual column generation ...  

E-Print Network (OSTI)

Jun 24, 2012 ... Abstract: This paper presents a new warmstarting technique in the context of a primal-dual column generation method applied to solve a...

287

Development of a Fuzzy Logic Controller for a Distillation Column using Rockwell Software.  

E-Print Network (OSTI)

??In this thesis, an alternative control method based on Fuzzy Inference System (FIS) is proposed to keep the product composition of a distillation column constant. (more)

Nizami, Muhammad

2011-01-01T23:59:59.000Z

288

Instrumentation and Equipment for Three Independent Research Labs  

SciTech Connect

Completed in 2011, Albright's new Science Center includes three independent student and faculty research labs in Biology, Chemistry/Biochemistry, and Physics (separate from teaching labs). Providing independent research facilities, they eliminate disruptions in classrooms and teaching labs, encourage and accommodate increased student interest, and stimulate advanced research. The DOE grant of $369,943 enabled Albright to equip these advanced labs for 21st century science research, with much instrumentation shared among departments. The specialty labs will enable Albright to expand its student-faculty research program to meet growing interest, help attract superior science students, maximize faculty expertise, and continue exceeding its already high rates of acceptance for students applying for postgraduate education or pharmaceutical research positions. Biology instrumentation/equipment supports coursework and independent and collaborative research by students and faculty. The digital shaker, CO{sub 2} and water bath incubators (for controlled cell growth), balance, and micropipettes support cellular biology research in the advanced cell biology course and student-faculty research into heavy metal induction of heat shock proteins in cultured mammalian cells and the development of PCR markers from different populations of the native tree, Franklinia. The gravity convection oven and lyophilizer support research into physical and chemical analysis of floodplain sediments used in assessment of riparian restoration efforts. The Bio-Rad thermocycler permits fast and accurate DNA amplification as part of research into genetic diversity in small mammal populations and how those populations are affected by land-use practices and environmental management. The Millipore water deionizing system and glassware washer provide general support of the independent research lab and ensure quality control of coursework and interdisciplinary research at the intersection of biology, chemistry, and toxicology. Grant purchases support faculty and students working in the areas of plant cellular biology, landscape ecology and wildlife management, wetland restoration, and ecotoxicology of aquatic invertebrates. Chemistry/BioChemistry instrumentation supports a wide range of research and teaching needs. The Dell quad core Xeon processors and Gaussian 09 support computational research efforts of two of our faculty. The computational work of one of these groups is part of close collaboration with one organic chemist and provides support info for the synthetic work of this professor and his students. Computational chemistry studies were also introduced into the physical chemistry laboratory course for junior chemistry concentrators. The AKTA plus system and superdex columns, Thermoscientific Sorvall RC-6 plus superspeed centrifuge, Nanodrop spectrometer, Eppendorf microfuge, Homogenizer and Pipetman pipetters were incorporated into a research project involving purification and characterization of a construct of beta 2-microglobulin by one of our biochemists. The vacuum system (glove box, stand, and pump) makes a significant contribution to the research of our inorganic chemist, the newest department member, working on research projects with four students. The glove box provides the means to carry out their synthetic work in an oxygenless atmosphere. Supporting basic research pursued by faculty and students, the remaining items (refrigerator/freezer units for flammable storage, freezer, refrigerated water bath, rotary evaporator system, vacuum oven, analytical and top-loading balances) were distributed between our biochemistry and chemistry research labs. The Nanodrop spectrometer, Sorvall centrifuge, and rotary evaporator system are used in several junior/senior lab courses in both biochemistry and chemistry. To date, 14 undergraduate research students have been involved in projects using the new instrumentation and equipment provided by this grant. Physics equipment acquired is radically transforming Albright research and teaching capabilities. The tw

Darlene Roth

2012-03-29T23:59:59.000Z

289

DUST EXTINCTION BIAS IN THE COLUMN DENSITY DISTRIBUTION OF GAMMA-RAY BURSTS: HIGH COLUMN DENSITY, LOW-REDSHIFT GRBs ARE MORE HEAVILY OBSCURED  

SciTech Connect

The afterglows of gamma-ray bursts (GRBs) have more soft-X-ray absorption than expected from the foreground gas column in the Galaxy. While the redshift of the absorption can in general not be constrained from current X-ray observations, it has been assumed that the absorption is due to metals in the host galaxy of the GRB. The large sample of X-ray afterglows and redshifts now available allows the construction of statistically meaningful distributions of the metal column densities. We construct such a sample and show, as found in previous studies, that the typical absorbing column density (N{sub H{sub X}}) increases substantially with redshift, with few high column density objects found at low-to-moderate redshifts. We show, however, that when highly extinguished bursts are included in the sample, using redshifts from their host galaxies, high column density sources are also found at low-to-moderate redshift. We infer from individual objects in the sample and from observations of blazars that the increase in column density with redshift is unlikely to be related to metals in the intergalactic medium or intervening absorbers. Instead we show that the origin of the apparent increase with redshift is primarily due to dust extinction bias: GRBs with high X-ray absorption column densities found at z {approx}< 4 typically have very high dust extinction column densities, while those found at the highest redshifts do not. It is unclear how such a strongly evolving N{sub H{sub X}}/A{sub V} ratio would arise, and based on current data, remains a puzzle.

Watson, Darach [Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen O (Denmark); Jakobsson, Pall, E-mail: darach@dark-cosmology.dk, E-mail: pja@raunvis.hi.is [Centre for Astrophysics and Cosmology, Science Institute, University of Iceland, Dunhaga 5, IS-107 Reykjavik (Iceland)

2012-08-01T23:59:59.000Z

290

Independent component analysis for document restoration  

Science Conference Proceedings (OSTI)

We propose a novel approach to restoring digital document images, with the aim of improving text legibility and OCR performance. These are often compromised by the presence of artifacts in the background, derived from many kinds of degradations, such ... Keywords: Blind source separation, Degraded documents, Independent component analysis, Palimpsest restoration- Bleed-through cancellation

Anna Tonazzini; Luigi Bedini; Emanuele Salerno

2004-03-01T23:59:59.000Z

291

Molecular Cell Independence of Repressive Histone Marks  

E-Print Network (OSTI)

Molecular Cell Article Independence of Repressive Histone Marks and Chromatin Compaction during Children, Toronto, ON M5G 1X8, Canada 7MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, UK 8Cancer, Belgium 17Present address: Department of Biochemistry and Molecular Biology, Peking University, Health

Babu, M. Madan

292

Independence of vectors in codes over rings  

Science Conference Proceedings (OSTI)

We study codes over Frobenius rings. We describe Frobenius rings via an isomorphism to the product of local Frobenius rings and use this decomposition to describe an analog of linear independence. Special attention is given to codes over principal ideal ... Keywords: Chinese Remainder Theorem, Codes over rings, Frobenius rings, Primary 94B05, Principal ideal rings, Secondary 13A99

Steven T. Dougherty; Hongwei Liu

2009-04-01T23:59:59.000Z

293

Independent arrays or independent time courses for gene expression time series data analysis  

Science Conference Proceedings (OSTI)

In this paper we apply three different independent component analysis (ICA) methods, including spatial ICA (sICA), temporal ICA (tICA), and spatiotemporal ICA (stICA), to gene expression time series data and compare their performance in clustering genes ... Keywords: DNA microarray, Gene expression data, Independent component analysis, Principal component analysis

Sookjeong Kim; Jong Kyoung Kim; Seungjin Choi

2008-06-01T23:59:59.000Z

294

An Approximation Algorithm for Computing a Parsimonious ... - CECM  

E-Print Network (OSTI)

Due to the large number of species in the real data set ? 6808 fungal gene trees from 23 species ? we applied only our approximation algorithm. We observed.

295

Hardness and Approximation Results for LpBall Constrained ...  

E-Print Network (OSTI)

Oct 31, 2012... a fundamental research issue is to determine their approximability. ...... R. Saigal, and L. Vandenberghe, editors, Handbook of Semidefinite...

296

Finding approximately rank-one submatrices with the nuclear norm ...  

E-Print Network (OSTI)

Nov 8, 2010 ... Abstract: We propose a convex optimization formulation with the nuclear norm and $\\ell_1$-norm to find a large approximately rank-one...

297

Polynomial time algorithms to approximate mixed volumes within a ...  

E-Print Network (OSTI)

Apr 11, 2007 ... ellipsoid method and a randomized poly-time time algorithm for the approximation of the volume of a convex set. ? gurvits@lanl.gov.

298

Table A3. Approximate Heat Content of Petroleum Consumption and ...  

U.S. Energy Information Administration (EIA)

U.S. Energy Information Administration / Annual Energy Review 2011 323 Table A3. Approximate Heat Content of Petroleum Consumption and Biofuels Production, Selected ...

299

Table A3. Approximate Heat Content of Petroleum Consumption and ...  

U.S. Energy Information Administration (EIA)

Table A3. Approximate Heat Content of Petroleum Consumption and Biofuels Production, 1949-2011 (Million Btu per Barrel) Year: Total Petroleum 1 ...

300

Level: National Data; Row: NAICS Codes; Column: Energy Sources  

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

3.4 Number of Establishments by Fuel Consumption, 2006; 3.4 Number of Establishments by Fuel Consumption, 2006; Level: National Data; Row: NAICS Codes; Column: Energy Sources Unit: Establishment Counts. Any NAICS Energy Net Residual Distillate LPG and Coke Code(a) Subsector and Industry Source(b) Electricity(c) Fuel Oil Fuel Oil(d) Natural Gas(e) NGL(f) Coal and Breeze Other(g) Total United States 311 Food 14,128 14,113 326 1,462 11,395 2,920 67 13 1,240 3112 Grain and Oilseed Milling 580 580 15 174 445 269 35 0 148 311221 Wet Corn Milling 47 47 W 17 44 19 18 0 18 31131 Sugar Manufacturing 78 78 11 43 61 35 26 13 45 3114 Fruit and Vegetable Preserving and Specialty Food 1,125 1,125 13 112 961 325 W 0 127 3115 Dairy Product 1,044 1,044 25 88 941 147 W 0 104 3116 Animal Slaughtering and Processing

Note: This page contains sample records for the topic "independent column approximation" 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

Level: National Data; Row: NAICS Codes; Column: Energy Sources;  

Gasoline and Diesel Fuel Update (EIA)

4.4 Number of Establishments by Offsite-Produced Fuel Consumption, 2010; 4.4 Number of Establishments by Offsite-Produced Fuel Consumption, 2010; Level: National Data; Row: NAICS Codes; Column: Energy Sources; Unit: Establishment Counts. Any NAICS Energy Residual Distillate LPG and Coke Code(a) Subsector and Industry Source(b) Electricity(c) Fuel Oil Fuel Oil(d) Natural Gas(e) NGL(f) Coal and Breeze Other(g) Total United States 311 Food 13,269 13,265 144 2,413 10,373 4,039 64 W 1,496 3112 Grain and Oilseed Milling 602 602 9 201 489 268 30 0 137 311221 Wet Corn Milling 59 59 W 26 50 36 15 0 28 31131 Sugar Manufacturing 73 73 3 36 67 12 11 W 11 3114 Fruit and Vegetable Preserving and Specialty Foods 987 987 17 207 839 503 W 0 207 3115 Dairy Products 998 998 12 217 908 161 W 0 79 3116 Animal Slaughtering and Processing

302

Experimental characterization of slurry bubble-column reactor hydrodynamics  

DOE Green Energy (OSTI)

Sandia`s program to develop, implement, and apply diagnostics for hydrodynamic characterization of slurry bubble column reactors (SBCRs) at industrially relevant conditions is discussed. Gas liquid flow experiments are performed on an industrial scale. Gamma densitometry tomography (GDT) is applied to measure radial variations in gas holdup at one axial location. Differential pressure (DP) measurements are used to calculate volume averaged gas holdups along the axis of the vessel. The holdups obtained from DP show negligible axial variation for water but significant variations for oil, suggesting that the air water flow is fully developed (minimal flow variations in the axial direction) but that the air oil flow is still developing at the GDT measurement location. The GDT and DP gas holdup results are in good agreement for the air water flow but not for the air oil flow. Strong flow variations in the axial direction may be impacting the accuracy of one or both of these techniques. DP measurements are also acquired at high sampling frequencies (250 Hz) and are interpreted using statistical analyses to determine the physical mechanism producing each frequency component in the flow. This approach did not yield the information needed to determine the flow regime in these experiments. As a first step toward three phase material distribution measurements, electrical impedance tomography (EIT) and GDT are applied to a liquid solid flow to measure solids holdup. Good agreement is observed between both techniques and known values.

Shollenberger, K.A.; Torczynski, J.R.; Jackson, N.B.; O`Hern, T.J.

1997-09-01T23:59:59.000Z

303

Column Studies of Anaerobic Carbon Tetrachloride Biotransformation with Hanford Aquifer Material  

E-Print Network (OSTI)

on CT transformations in Hanford soil. This work assessed the potential for in situ CT biotransColumn Studies of Anaerobic Carbon Tetrachloride Biotransformation with Hanford Aquifer Material a column reactor system containing Hanford Aquifer material in order to assess the potential of in situ

Semprini, Lewis

304

THE POWER SUPPLY SYSTEM FOR THE ACCELERATING COLUMN OF THE 2 MEV ELECTRON COOLER FOR COSY  

E-Print Network (OSTI)

filter, and various power supplies for these elements. The cascade transformer is to provide a requiredTHE POWER SUPPLY SYSTEM FOR THE ACCELERATING COLUMN OF THE 2 MEV ELECTRON COOLER FOR COSY D a high-energy electron beam. The power supply for the accelerating column of the electron cooling system

Kozak, Victor R.

305

Optimal Allocation of Heat Exchanger Inventory in a Serial Type Diabatic Distillation Column  

E-Print Network (OSTI)

Optimal Allocation of Heat Exchanger Inventory in a Serial Type Diabatic Distillation Column Edward the column . We have previously shown (Jimenez et al. 2003) that optimaloperation of serial heat exchangers total heat exchanger area in different trays and calculate the optimal allocation of a given heat

Salamon, Peter

306

Flexural buckling load prediction of aluminium alloy columns using soft computing techniques  

Science Conference Proceedings (OSTI)

This paper presents the application of soft computing techniques for strength prediction of heat-treated extruded aluminium alloy columns failing by flexural buckling. Neural networks (NN) and genetic programming (GP) are presented as soft computing ... Keywords: Aluminium alloy columns, Flexural buckling, Genetic programming, Neural networks, Soft computing

Abdulkadir Cevik; Nihat Atmaca; Talha Ekmekyapar; Ibrahim H. Guzelbey

2009-04-01T23:59:59.000Z

307

Control of absorption columns in the bioethanol process: Influence of measurement uncertainties  

Science Conference Proceedings (OSTI)

The alcohol lost by evaporation during the bioethanol fermentation process may be collected and recovered using an absorption column. This equipment is also used in the carbonic gas treatment, a by-product from the sugar cane fermentation. In the present ... Keywords: Absorption column, Artificial neural network control, Bioethanol, Concentration measurement uncertainty, Fermentation

Eduardo Eyng; Ana M. F. Fileti

2010-03-01T23:59:59.000Z

308

Brief paper: Self-tuning regulator applied to a binary distillation column  

Science Conference Proceedings (OSTI)

Utilization of a self-tuning regulator (STR) for control of top product composition of a binary distillation column has been investigated. Results from simulation studies and experimental evaluation of the STR on a pilot scale column are compared with ... Keywords: Adaptive control, chemical variables control, computer control, control engineering computer applications, petro-chemical control, self-adjusting systems, stochastic control

V. A. Sastry; D. E. Seborg; R. K. Wood

1977-07-01T23:59:59.000Z

309

Approximating the traffic grooming problem in tree and star networks  

Science Conference Proceedings (OSTI)

We consider the problem of grooming paths in all-optical networks with tree topology so as to minimize the switching cost, measured by the total number of used ADMs. We first present efficient approximation algorithms with approximation factor of 2 ln ... Keywords: add-drop multiplexer (ADM), optical networks, traffic grooming, tree networks, wavelength division multiplexing (WDM)

Michele Flammini; Gianpiero Monaco; Luca Moscardelli; Mordechai Shalom; Shmuel Zaks

2006-06-01T23:59:59.000Z

310

On the progressive iteration approximation property and alternative iterations  

Science Conference Proceedings (OSTI)

This note revisits the progressive iteration approximation property and some recent modifications from the point of view of iterative methods for solving linear systems. In particular we show the connection with the classical Richardson iteration and ... Keywords: GMRES, Interpolation, Iterative methods, Progressive iteration approximation

J. M. Carnicer; J. Delgado; J. M. Pea

2011-12-01T23:59:59.000Z

311

A constrained binary knapsack approximation for shortest path network interdiction  

Science Conference Proceedings (OSTI)

A modified shortest path network interdiction model is approximated in this work by a constrained binary knapsack which uses aggregated arc maximum flow as the objective function coefficient. In the modified shortest path network interdiction problem, ... Keywords: Approximation techniques, Homeland security, Integer programming, Network interdiction

Justin Yates; Kavitha Lakshmanan

2011-11-01T23:59:59.000Z

312

On-line Approximate String Matching in Natural Language  

Science Conference Proceedings (OSTI)

We consider approximate pattern matching in natural language text. We use the words of the text as the alphabet, instead of the characters as in traditional string matching approaches. Hence our pattern consists of a sequence of words. From the algorithmic ... Keywords: Approximate string matching, filtering, natural language processing, phrase matching, word alphabet

Kimmo Fredriksson

2006-09-01T23:59:59.000Z

313

Quantile approximations in auto-regressive portfolio models  

Science Conference Proceedings (OSTI)

This paper develops an analytical approximation for the distribution function of a terminal value of a periodic series of buy-and-hold investments placed over a fixed time horizon for the case when log-returns of assets follow a p-th order vector auto-regressive ... Keywords: Multi-period portfolio return, Taylor conditioned approximation, Vector auto-regressive returns

Ale Ah?an; Igor Masten; Sao Polanec; Mihael Perman

2011-02-01T23:59:59.000Z

314

Error estimates for the numerical approximation of Neumann control problems  

Science Conference Proceedings (OSTI)

We continue the discussion of error estimates for the numerical analysis of Neumann boundary control problems we started in Casas et al. (Comput. Optim. Appl. 31:193-219, 2005). In that paper piecewise constant functions were used to approximate the ... Keywords: boundary control, error estimates, numerical approximation, semilinear elliptic equation

Eduardo Casas; Mariano Mateos

2008-04-01T23:59:59.000Z

315

Reasoning with rough description logics: An approximate concepts approach  

Science Conference Proceedings (OSTI)

The current research progress and the existing problems of uncertain or imprecise knowledge representation and reasoning in description logics are analyzed in this paper. Approximate concepts are introduced to description logics based on rough set theory, ... Keywords: Approximate concepts, Concepts, Description logics, Rough description logics, Rough set theory

Yuncheng Jiang; Ju Wang; Suqin Tang; Bao Xiao

2009-02-01T23:59:59.000Z

316

Neural Acceleration for General-Purpose Approximate Programs  

Science Conference Proceedings (OSTI)

This paper describes a learning-based approach to the acceleration of approximate programs. We describe the \\emph{Parrot transformation}, a program transformation that selects and trains a neural network to mimic a region of imperative code. After the ... Keywords: Approximate Computing, Neural Networks, Accelerator, Neural Processing Unit, NPU

Hadi Esmaeilzadeh; Adrian Sampson; Luis Ceze; Doug Burger

2012-12-01T23:59:59.000Z

317

Approximating Selective Sweeps by Richard Durrett and Jason Schweinsberg  

E-Print Network (OSTI)

Approximating Selective Sweeps by Richard Durrett and Jason Schweinsberg Dept. of Math, Cornell U of selective sweeps on genealogies. However, most subsequent work has simplified their approach by assuming that the impact of a selective sweep can be accurately approximated by a random partition created by a stick

Durrett, Richard

318

An approximation algorithm for convex multi-objective programming problems  

Science Conference Proceedings (OSTI)

In multi-objective convex optimization it is necessary to compute an infinite set of nondominated points. We propose a method for approximating the nondominated set of a multi-objective nonlinear programming problem, where the objective functions and ... Keywords: ?-nondominated point, Approximation algorithm, Convex optimization, Multi-objective optimization

Matthias Ehrgott; Lizhen Shao; Anita Schbel

2011-07-01T23:59:59.000Z

319

Thermodynamic Consistency of the Anelastic Approximation for a Moist Atmosphere  

Science Conference Proceedings (OSTI)

The primary goal of this paper is to validate the use of the anelastic approximation for fluids with a complex equation of state such as moist air or seawater. The anelastic approximation is based on a leading-order expansion of the equations of ...

Olivier Pauluis

2008-08-01T23:59:59.000Z

320

Small scale ethanol production demonstration: comparison of packed versus plate rectifying column  

DOE Green Energy (OSTI)

The Johnson Environmental and Energy Center with assistance from the Madison County Farm Bureau Association received a grant in 1980 from the US Department of Energy to design, fabricate, and evaluate a small scale continuous ethanol plant. In 1981, the Center received a second DOE grant to compare the economics of replacing the plate rectifying column in the initial unit with a packed rectifying column. The results of the study indicate that the distillation unit with the packed rectifying column is capable of producing 14 gallons per hour of 170 proof ethanol. The energy ratio for distillation was a positive 2:1. Cost of the packed column was considerably less than the plate column. 1 reference, 19 figures, 9 tables.

Adcock, II, L E; Eley, M H; Schroer, B J

1982-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "independent column approximation" 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

Independent Oversight Inspection, Brookhaven National Laboratory - April  

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

Brookhaven National Laboratory - Brookhaven National Laboratory - April 2004 Independent Oversight Inspection, Brookhaven National Laboratory - April 2004 April 2004 Inspection of Emergency Management at the Brookhaven National Laboratory The Secretary of Energy's Office of Independent Oversight and Performance Assurance (OA), within the newly created Office of Security and Safety Performance Assurance, conducted an inspection of the emergency management program at the U.S. Department of Energy (DOE) Brookhaven National Laboratory (BNL) in March 2004. The inspection was performed by the OA Office of Emergency Management Oversight. A number of positive attributes were identified during this review. Most significant is the aggressive program for reducing hazardous material inventories, minimizing hazardous waste, and evaluating chemical use to

322

Independence, Minnesota: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Independence, Minnesota: Energy Resources Independence, Minnesota: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 45.0252407°, -93.7074634° 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":45.0252407,"lon":-93.7074634,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

323

Independent Oversight Inspection, Lawrence Livermore National Laboratory,  

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

Inspection, Lawrence Livermore National Inspection, Lawrence Livermore National Laboratory, Volume I - December 2004 Independent Oversight Inspection, Lawrence Livermore National Laboratory, Volume I - December 2004 December 2004 Inspection of Environment, Safety, and Health Management at the Lawrence Livermore National Laboratory The U.S. Department of Energy (DOE) Office of Independent Oversight and Performance Assurance (OA), within the Office of Security and Safety Performance Assurance (SSA), conducted an inspection of environment, safety, and health (ES&H) at the DOE Lawrence Livermore National Laboratory (LLNL) during October and November 2004. The inspection was performed by the OA Office of Environment, Safety and Health Evaluations. LSO and LLNL have established ISM systems that are conceptually sound but

324

Independent Oversight Inspection, Sandia National Laboratories, Summary  

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

Laboratories, Laboratories, Summary Report - February 2003 Independent Oversight Inspection, Sandia National Laboratories, Summary Report - February 2003 February 2003 Inspection of Environment, Safety, and Health and Emergency Management at the Sandia National Laboratories The Secretary of Energy's Office of Independent Oversight and Performance Assurance (OA) conducted an inspection of environment, safety, and health (ES&H) and emergency management programs at the U.S. Department of Energy's (DOE) Sandia National Laboratories - New Mexico (SNL/NM) site in January-February 2003. The inspection was performed as a joint effort by the OA Office of Environment, Safety and Health Evaluations and the Office of Emergency Management Oversight. As discussed throughout this report, the SNL/NM ISM program has improved,

325

Independent Oversight Inspection, Sandia National Laboratories, Summary  

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

Sandia National Laboratories, Sandia National Laboratories, Summary Report - February 2003 Independent Oversight Inspection, Sandia National Laboratories, Summary Report - February 2003 February 2003 Inspection of Environment, Safety, and Health and Emergency Management at the Sandia National Laboratories The Secretary of Energy's Office of Independent Oversight and Performance Assurance (OA) conducted an inspection of environment, safety, and health (ES&H) and emergency management programs at the U.S. Department of Energy's (DOE) Sandia National Laboratories - New Mexico (SNL/NM) site in January-February 2003. The inspection was performed as a joint effort by the OA Office of Environment, Safety and Health Evaluations and the Office of Emergency Management Oversight. As discussed throughout this report, the SNL/NM ISM program has improved,

326

Independent Oversight Review, Pacific Northwest National Laboratory -  

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

Pacific Northwest National Laboratory Pacific Northwest National Laboratory - October 2012 Independent Oversight Review, Pacific Northwest National Laboratory - October 2012 October 2012 Review of the Department of Energy Office of Science Assessment of the Pacific Northwest National Laboratory Radiochemical Processing Laboratory Criticality Alarm System The Office of Enforcement and Oversight (Independent Oversight), within the U.S. Department of Energy (DOE) Office of Health, Safety and Security (HSS), conducted a shadow assessment of the Office of Science (SC) review of the Pacific Northwest National Laboratory (PNNL) Radiochemical Processing Laboratory (RPL) Criticality Alarm System (CAS). SC's Pacific Northwest Site Office (PNSO) coordinated the SC review. The SC assessment focused on the operability of the CAS at the PNNL RPL

327

Independent Oversight Inspection, Lawrence Livermore National Laboratory -  

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

Lawrence Livermore National Lawrence Livermore National Laboratory - June 2005 Independent Oversight Inspection, Lawrence Livermore National Laboratory - June 2005 June 2005 Inspection of Emergency Management at the Livermore Site Office and Lawrence Livermore National Laboratory The Secretary of Energy's Office of Independent Oversight and Performance Assurance (OA), within the Office of Security and Safety Performance Assurance, conducted an inspection of the emergency management program at the U.S. Department of Energy (DOE) Lawrence Livermore National Laboratory (LLNL) site in June 2005. The inspection was performed by the OA Office of Emergency Management Oversight. This 2005 OA inspection determined that LLNL has completed program development work or has established an appropriate framework for nearly all

328

Definition: Independent Power Producer | Open Energy Information  

Open Energy Info (EERE)

Producer Producer Jump to: navigation, search Dictionary.png Independent Power Producer Any entity that owns or operates an electricity generating facility that is not included in an electric utility's rate base. This term includes, but is not limited to, cogenerators and small power producers and all other nonutility electricity producers, such as exempt wholesale generators, who sell electricity.[1] View on Wikipedia Wikipedia Definition An Independent Power Producer is an entity, which is not a public utility, but which owns facilities to generate electric power for sale to utilities and end users. NUGs may be privately held facilities, corporations, cooperatives such as rural solar or wind energy producers, and non-energy industrial concerns capable of feeding excess energy into

329

Independent Activity Report, Lawrence Livermore National Laboratory -  

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

February 2013 February 2013 Independent Activity Report, Lawrence Livermore National Laboratory - February 2013 February 2013 Lawrence Livermore National Laboratory Operational Drill at the B332 Plutonium Facility [HIAR LLNL-2013-02-27] The Livermore Site Office (LSO) and Lawrence Livermore National Security, LLC (LLNS) requested personnel from the U.S. Department of Energy (DOE) Office of Safety and Emergency Management Evaluations (HS-45) to observe an operational drill at the Plutonium Facility in Building 332 (B332). LSO and LLNS desired HS-45's participation to help determine the maturity of the operational drill program by providing independent expertise in the matter at a time when HS-45 personnel were already on site conducting an emergency management review. LLNS administered this operational drill using the DOE guidance for

330

Independent Oversight Review, Pacific Northwest National Laboratory -  

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

Pacific Northwest National Laboratory Pacific Northwest National Laboratory - September 2013 Independent Oversight Review, Pacific Northwest National Laboratory - September 2013 September 2013 Review of the Fire Protection Program at Pacific Northwest National Laboratory and the Fire Suppression System at the Radiochemical Processing Laboratory. This report documents the results of an independent oversight review of the fire protection program at the Pacific Northwest National Laboratory (PNNL) and the fire suppression system at the Radiochemical Processing Laboratory. The review was performed March 18-29, 2013, by the U.S. Department of Energy's (DOE) Office of Safety and Emergency Management Evaluations, which is within the DOE Office of Health, Safety and Security. The review was performed as one part of an ongoing targeted

331

Independent Oversight Review, Lawrence Livermore National Laboratory -  

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

Review, Lawrence Livermore National Review, Lawrence Livermore National Laboratory - December 2009 Independent Oversight Review, Lawrence Livermore National Laboratory - December 2009 December 2009 Review of Nuclear Safety at the Lawrence Livermore National Laboratory The U.S. Department of Energy (DOE), Office of Health, Safety and Security (HSS), performed a review of nuclear safety programs at the DOE Lawrence Livermore National Laboratory (LLNL) from October through November 2009. The review was performed by the HSS Office of Independent Oversight's Office of Environment, Safety and Health (ES&H) Evaluations. LLNL has made significant progress in establishing and implementing comprehensive programs to effectively manage nuclear safety. LLNL has devoted considerable management attention and resources to enhance nuclear

332

Independent Oversight Focused Program Review, Argonne National  

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

Focused Program Review, Argonne National Focused Program Review, Argonne National Laboratory-West - May 2001 Independent Oversight Focused Program Review, Argonne National Laboratory-West - May 2001 May 2001 Focused Program Review at Argonne National Laboratory-West The U.S. Department of Energy (DOE) Office of Emergency Management Oversight, within the Secretary of Energy's Office of Independent Oversight and Performance Assurance, conducted a focused review of the emergency management program at Argonne National Laboratory-West (ANL-W) in May 2001. There were two primary objectives for this review: to evaluate the extent to which the emergency planning hazards assessment (EPHA) document serves as an effective foundation for the ANL-W emergency management program, and to determine whether the necessary interfaces have been established among

333

Independent Oversight Review, Portsmouth Gaseous Diffusion Plant -  

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

Portsmouth Gaseous Diffusion Plant Portsmouth Gaseous Diffusion Plant - November 2013 Independent Oversight Review, Portsmouth Gaseous Diffusion Plant - November 2013 November 5, 2013 Review of Preparedness for Severe Natural Phenomena Events at the Portsmouth Gaseous Diffusion Plant This report documents the results of an independent oversight review of the preparedness of the DOE Portsmouth/Paducah Project Office, contractors at the DOE Portsmouth Gaseous Diffusion Plant, and selected non-leased facilities to respond to a severe natural phenomena event (NPE). The review was conducted in July and August 2013 by the U.S. Department of Energy's (DOE) Office of Safety and Emergency Management Evaluations, which is within the DOE Office of Health, Safety and Security (HSS). The HSS Office of Safety and Emergency Management Evaluations performed this

334

Federal Energy Management Program: Energy Independence & Security Act  

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

Energy Energy Independence & Security Act to someone by E-mail Share Federal Energy Management Program: Energy Independence & Security Act on Facebook Tweet about Federal Energy Management Program: Energy Independence & Security Act on Twitter Bookmark Federal Energy Management Program: Energy Independence & Security Act on Google Bookmark Federal Energy Management Program: Energy Independence & Security Act on Delicious Rank Federal Energy Management Program: Energy Independence & Security Act on Digg Find More places to share Federal Energy Management Program: Energy Independence & Security Act on AddThis.com... Requirements by Subject Requirements by Regulation National Energy Conservation Policy Act Executive Order 13514 Energy Independence & Security Act

335

Two Independent Assessments Find the Department of Energy's Yucca...  

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

Independent Assessments Find the Department of Energy's Yucca Mountain Project is on Track Two Independent Assessments Find the Department of Energy's Yucca Mountain Project is on...

336

Independent Oversight Inspection of Emergency Management at the...  

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

of Energy October 2002 Volume II INDEPENDENT OVERSIGHT INSPECTION OF EMERGENCY MANAGEMENT AT THE NEVADA TEST SITE VOLUME II October 2002 i INDEPENDENT OVERSIGHT INSPECTION OF...

337

Independent Oversight Inspection of Emergency Management at the...  

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

of Energy July 2002 Volume II INDEPENDENT OVERSIGHT INSPECTION OF EMERGENCY MANAGEMENT AT THE LAWRENCE LIVERMORE NATIONAL LABORATORY Volume II July 2002 i INDEPENDENT...

338

PPC Worley and Independence Biofuels JV | Open Energy Information  

Open Energy Info (EERE)

PPC Worley and Independence Biofuels JV Jump to: navigation, search Name PPC, Worley and Independence Biofuels JV Place Pennsylvania Sector Biofuels Product JV between PPC, Worley...

339

Independent technical review of the Pinellas Plant  

Science Conference Proceedings (OSTI)

This report documents an Independent Technical Review (ITR) of facilities, organizations, plans, activities and various other elements required to successfully transition the Pinellas Plant from Defense Program (DP) funded operation to either community developed reuse or safe deactivation leading to decontamination and decommissioning (D&D). The review was conducted at the request of the Department of Energy (DOE) Deputy Assistant Secretary for Facility Transition and Management (EM-60) and is a consensus of the nine member ITR Team.

Not Available

1994-07-01T23:59:59.000Z

340

3-Dimensional Flow Modeling of a Proposed Hanford Waste Treatment Plant Ion-Exchange Column Design  

DOE Green Energy (OSTI)

Historically, it has been assumed that the inlet and outlet low activity waste plenums would be designed such that a nearly uniform velocity profile would be maintained at every axial cross-section (i.e., providing nearly 100 percent use of the resin bed). With this proposed design, we see a LAW outlet distributor that results in significant non-axial velocity gradients in the bottom regions of the bed with the potential to reduce the effectiveness'' of the overall resin bed. The magnitude of this efficiency reduction depends upon how far up-gradient of the LAW outlet these non-axial velocities persist and to what extent a ''dead-zone'' is established beneath the LAW outlet. This can impact loading and elution performance of the ion-exchange facility. Currently, no experimental studies are planned. The primary objective of this work was, through modeling, to assess the fluid dynamic impact on ''effective'' resin volume of the full-scale column based on its normal operation using a recently proposed LAW outlet distributor. The analysis effort was limited to 3-D flow only analyses (i.e., no follow on transport analyses) with 3-D particle tracking to approximate the impact that a nonaxial velocity profile would have on bed ''effectiveness''. Additional analyses were performed to estimate under nominal operating conditions the thermal temperature rise across a loaded resin bed and within its particles. Hydrogen bubble formation is not considered in the heat transfer analysis or in the determination of minimum flowrate. All modeling objectives were met.

ALEMAN, SEBASTIAN

2002-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "independent column approximation" 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

Energy Independence and Security Act of 2007  

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

Aug 31 2005 13:29 Jan 10, 2008 Aug 31 2005 13:29 Jan 10, 2008 Jkt 069139 PO 00140 Frm 00001 Fmt 6579 Sfmt 6579 E:\PUBLAW\PUBL140.110 APPS06 PsN: PUBL140 dkrause on GSDDPC29 with PUBLIC LAWS PUBLIC LAW 110-140-DEC. 19, 2007 ENERGY INDEPENDENCE AND SECURITY ACT OF 2007 VerDate Aug 31 2005 13:29 Jan 10, 2008 Jkt 069139 PO 00140 Frm 00002 Fmt 6580 Sfmt 6582 E:\PUBLAW\PUBL140.110 APPS06 PsN: PUBL140 dkrause on GSDDPC29 with PUBLIC LAWS 121 STAT. 1492 PUBLIC LAW 110-140-DEC. 19, 2007 Dec. 19, 2007 [H.R. 6] Energy Independence and Security Act of 2007. 42 USC 17001 note. Public Law 110-140 110th Congress An Act To move the United States toward greater energy independence and security, to increase the production of clean renewable fuels, to protect consumers, to increase the efficiency of products, buildings, and vehicles, to promote research on and

342

Approximate Coulomb distortion effects in (e,e'p) reactions  

E-Print Network (OSTI)

In this paper we apply a well-tested approximation of electron Coulomb distortion effects to the exclusive reaction (e,e'p) in the quasielastic region. We compare the approximate treatment of Coulomb distortion effects to the exact distorted wave Born approximation evaluated by means of partial wave analysis to gauge the quality of our approximate treatment. We show that the approximate M\\"oller potential has a plane-wave-like structure and hence permits the separation of the cross section into five terms which depend on bilinear products of transforms of the transition four current elements. These transforms reduce to Fourier transforms when Coulomb distortion is not present, but become modified with the inclusion of Coulomb distortion. We investigate the application of the approximate formalism to a model of 208Pb(e,e'p) using Dirac-Hartree single particle wave functions for the ground state and relativistic optical model wave functions for the continuum proton. We show that it is still possible to extract, albeit with some approximation, the various structure functions from the experimentally measured data even for heavy nuclei.

K. S. Kim; L. E. Wright

2005-03-30T23:59:59.000Z

343

Independent technical review of the Mound Plant  

SciTech Connect

This report documents an Independent Technical Review (ITR) of the facilities, organizations, plans, and activities required to transition particular elements of the Mound Plant from Defense Program (DP) funded operation as appropriate either to community developed reuse or safe deactivation leading to decontamination and decommissioning (D&D). The review was conducted at the request of the Dr. Willis Bixby, Deputy Assistant Secretary, U.S. Department of Energy EM-60, Office of Facility Transition and Management and is a consensus of the nine member ITR Team. Information for the review was drawn from documents provided to the ITR Team by the Miamisburg Area Office (MB) of the DOE, EG&G, the City of Miamisburg, and others; and from presentations, discussions, interviews, and facility inspections at the Mound Plant during the weeks of March 14 and March 28, 1994. During the week of April 25, 1994, the ITR Team met at Los Alamos, New Mexico to develop consensus recommendations. A presentation of the core recommendations was made at the Mound Plant on May 5, 1994. This is an independent assessment of information available to, and used by, the Mound Plant personnel. Repetition of the information is not meant to imply discovery by the ITR Team. Team members, however, acting as independent reviewers, frequently assess the information from a perspective that differs significantly from that of the Mound Plant personnel. The report is based on information obtained and conditions observed during the March 1994 review interval. The ITR process and normal site work often initiate rapid, beneficial changes in understanding and organization immediately following the review. These changes frequently alter conditions observed during the review, but the report does not address changes subsequent to the review interval.

1994-06-01T23:59:59.000Z

344

ROTARY FILTER FINES TESTING FOR SMALL COLUMN ION EXCHANGE  

SciTech Connect

SRNL was requested to quantify the amount of 'fines passage' through the 0.5 micron membranes currently used for the rotary microfilter (RMF). Testing was also completed to determine if there is any additional benefit to utilizing a 0.1 micron filter to reduce the amount of fines that could pass through the filter. Quantifying of the amount of fines that passed through the two sets of membranes that were tested was accomplished by analyzing the filtrate by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) for titanium. Even with preparations to isolate the titanium, all samples returned results of less than the instrument's detection limit of 0.184 mg/L. Test results show that the 0.5 micron filters produced a significantly higher flux while showing a negligible difference in filtrate clarity measured by turbidity. The first targeted deployment of the RMF is with the Small Column Ion Exchange (SCIX) at the Savannah River Site (SRS). SCIX uses crystalline silicotitanate (CST) to sorb cesium to decontaminate a clarified salt solution. The passage of fine particles through the filter membranes in sufficient quantities has the potential to impact the downstream facilities. To determine the amount of fines passage, a contract was established with SpinTek Filtration to operate a 3-disk pilot scale unit with prototypic filter disk and various feeds and two different filter disk membranes. SpinTek evaluated a set of the baseline 0.5 micron filter disks as well as a set of 0.1 micron filter disks to determine the amount of fine particles that would pass the membrane and to determine the flux each set produced. The membrane on both disk sets is manufactured by the Pall Corporation (PMM 050). Each set of disks was run with three feed combinations: prototypically ground CST, CST plus monosodium titanate (MST), and CST, MST, plus Sludge Batch 6 (SB6) simulant. Throughout the testing, samples of the filtrate were collected, measured for turbidity, and sent back to SRNL for analysis to quantify the amount of fines that passed through the membrane. It should be noted that even though ground CST was tested, it will be transferred to the Defense Waste Processing Facility (DWPF) feed tank and is not expected to require filtration.

Herman, D.

2011-08-03T23:59:59.000Z

345

Model Independent Bounds on Kinetic Mixing  

SciTech Connect

New Abelian vector bosons can kinetically mix with the hypercharge gauge boson of the Standard Model. This letter computes the model independent limits on vector bosons with masses from 1 GeV to 1 TeV. The limits arise from the numerous e{sup +}e{sup -} experiments that have been performed in this energy range and bound the kinetic mixing by {epsilon} {approx}< 0.03 for most of the mass range studied, regardless of any additional interactions that the new vector boson may have.

Hook, Anson; Izaguirre, Eder; Wacker, Jay G.; /SLAC

2011-08-22T23:59:59.000Z

346

WKBJ Approximation of the Stability of a Frontal Mean State  

Science Conference Proceedings (OSTI)

The baroclinic instability of a frontal mean state is investigated using the WKBJ approximation. The results are compared with numerical calculations performed on the same mean state. Excellent agreement (within 5%) is found for jets whose half-...

Petros Ioannou; Richard S. Lindzen

1990-12-01T23:59:59.000Z

347

An empirical comparison of some approximate methods for graph coloring  

Science Conference Proceedings (OSTI)

The Graph Coloring Problem (GCP) is a classical NP-complete problem for which several approximate solution algorithms have been proposed: Brelaz algorithm, simulated annealing (SA), ant colony optimization (ACO). This paper reports empirical results ... Keywords: graph coloring, gravitational swarm

Israel Rebollo-Ruiz; Manuel Graa

2012-03-01T23:59:59.000Z

348

Linear Baroclinic instability with the Geostrophic Momentum Approximation  

Science Conference Proceedings (OSTI)

The linear Eady model of baroclinic instability with the geostrophic momentum (GM) approximation is solved analytically in physical space and shown to be identical to linear three-dimensional semigeostrophic theory. Both the growth rates and the ...

Peter R. Bannon

1989-02-01T23:59:59.000Z

349

Potential Vorticity Conservation, Hydrostatic Adjustment, and the Anelastic Approximation  

Science Conference Proceedings (OSTI)

An examination of the anelastic equations of Lipps and Hemler shows that the approximation requires the temperature and potential temperature scale heights of the base state are large compared to the pressure and density scale heights. As a ...

Peter R. Bannon

1995-06-01T23:59:59.000Z

350

Approximate dynamic programming with applications in multi-agent systems  

E-Print Network (OSTI)

This thesis presents the development and implementation of approximate dynamic programming methods used to manage multi-agent systems. The purpose of this thesis is to develop an architectural framework and theoretical ...

Valenti, Mario J. (Mario James), 1976-

2007-01-01T23:59:59.000Z

351

Testing and Comparing the Modified Anomalous Diffraction Approximation  

Science Conference Proceedings (OSTI)

The modified anomalous diffraction approximation (MADA) is used to predict absorption and extinction in water and ice clouds, but it does not predict the scattering phase function or asymmetry parameter g. In conjunction with g parameterizations, ...

David L. Mitchell; Anthony J. Baran; W. P. Arnott; C. Schmitt

2006-11-01T23:59:59.000Z

352

Approximate translation : media, narrative, and experience in urban design  

E-Print Network (OSTI)

Approximate translation is developed as a design process through which the place-embedded history of an urban environment can be understood, allowing for better design and intervention in that urban environment. Generally, ...

Crisman, Jonathan

2013-01-01T23:59:59.000Z

353

The Approximating Hamiltonian Method for the Imperfect Boson Gas  

E-Print Network (OSTI)

The pressure for the Imperfect (Mean Field) Boson gas can be derived in several ways. The aim of the present note is to provide a new method based on the Approximating Hamiltonian argument which is extremely simple and very general.

Joseph V. Pule; Valentin A. Zagrebnov

2004-05-14T23:59:59.000Z

354

Approximate expressions for polar gap electric field of pulsars  

E-Print Network (OSTI)

We derive easy-to-handle approximations for the polar gap electric field due to inertial frame dragging as derived by Harding & Muslimov 1998. A simple formula valid for polar gap height comparable to the polar cap radius is presented.

J. Dyks; B. Rudak

2000-06-19T23:59:59.000Z

355

Approximate query answering in unstructured peer-to-peer databases.  

E-Print Network (OSTI)

??Peer-to-peer networks are considered the new generation of distributed databases, termed peer-to-peer databases. With very large size, open architecture, and extreme dynamism and autonomy, approximate (more)

Banaei-Kashani, Farnoush

2007-01-01T23:59:59.000Z

356

On the Median Volume Diameter Approximation for Droplet Collision Efficiency  

Science Conference Proceedings (OSTI)

In this note, we examine a shortcut for calculating the overall collision efficiency of a droplet spectrum, known as the median volume diameter (mvd) approximation. By calculating the overall collision efficiency of a circular cylinder for a ...

Karen J. Finstad; Edward P. Lozowski; Lasse Makkonen

1988-12-01T23:59:59.000Z

357

A Free-Algebraic Solution for the Planar Approximation  

E-Print Network (OSTI)

An explicit solution for the generating functional of n-point functions in the planar approximation is given in terms of two sets of free-algebraic annihilation and creation operators.

O. Haan

2004-08-11T23:59:59.000Z

358

Relativistic plasma dispersion functions: Series, integrals, and approximations  

SciTech Connect

A number of results are presented involving the plasma dispersion functions appropriate to waves in weakly relativistic, magnetized, thermal plasmas. These results include generating functions, series, integral forms and interrelations, and several useful approximations.

Robinson, P.A.

1987-05-01T23:59:59.000Z

359

Statistical theory of Langmuir turbulence. [Direct interaction approximation  

SciTech Connect

A statistical theory of Langmuir turbulence is developed by applying a generalization of the direction interaction approximation (DIA) of Kraichnan to the Zakharov equations describing Langmuir turbulence. 7 references.

DuBois, D.F.; Rose, H.A.; Goldman, M.V.

1979-01-01T23:59:59.000Z

360

A Practical Approximation to Optimal Four-Dimensional Objective Analysis  

Science Conference Proceedings (OSTI)

An iterative four-dimensional objective analysis scheme is described. The method is derived by approximating a variational algorithm which should give an optimal four-dimensional analysis The complete set of operationally available observations, ...

Andrew C. Lorenc

1988-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "independent column approximation" 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

A discrete BGK approximation for strongly degenerate parabolic problems  

E-Print Network (OSTI)

A discrete BGK approximation for strongly degenerate parabolic problems with boundary conditions F strongly degenerate hyperbolic--parabolic equations with initial boundary condition. We prove a priori -- strongly degenerate parabolic equations -- singular perturbation problems -- BGK models 1 Introduction

362

Approximation algorithms for stochastic scheduling on unrelated machines  

E-Print Network (OSTI)

Motivated by problems in distributed computing, this thesis presents the first nontrivial polynomial time approximation algorithms for an important class of machine scheduling problems. We study the family of preemptive ...

Scott, Jacob (Jacob Healy)

2008-01-01T23:59:59.000Z

363

Numerical Tests of the Weak Pressure Gradient Approximation  

Science Conference Proceedings (OSTI)

Cloud-resolving simulations of convection over a surface temperature hot spot are used to evaluate the weak pressure gradient (WPG) and weak temperature gradient (WTG) approximations. The premise of the relaxed form of WTGthat vertical velocity ...

David M. Romps

2012-09-01T23:59:59.000Z

364

Approximating the traffic grooming problem in tree and star networks  

Science Conference Proceedings (OSTI)

We consider the problem of grooming paths in all-optical networks with tree topology so as to minimize the switching cost, measured by the total number of used ADMs. We first present efficient approximation algorithms with approximation factor of 2ln(@d@?g)+o(ln(@d@?g)) ... Keywords: Add-drop multiplexer (ADM), Optical networks, Traffic grooming, Tree networks, Wavelength division multiplexing (WDM)

Michele Flammini; Gianpiero Monaco; Luca Moscardelli; Mordechai Shalom; Shmuel Zaks

2008-07-01T23:59:59.000Z

365

Indexing methods for approximate dictionary searching: Comparative analysis  

Science Conference Proceedings (OSTI)

The primary goal of this article is to survey state-of-the-art indexing methods for approximate dictionary searching. To improve understanding of the field, we introduce a taxonomy that classifies all methods into direct methods and sequence-based filtering ... Keywords: k-errata tree, q-gram, q-sample, Damerau-Levenshtein distance, Levenshtein distance, NR-grep, agrep, approximate searching, frequency distance, frequency vector trie, metric trees, neighborhood generation, trie

Leonid Boytsov

2011-05-01T23:59:59.000Z

366

Non-Destructive Examination Independent Review  

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

webcast Webcast Waiver Contacts Home webcast Webcast Waiver Contacts Home The Department of Energy is hosting a Non-Destructive Examination Independent Review in Atlanta, GA The Independent Review of Non-Destructive Examination Techniques and Methods for Application to High Level Waste Tank Storage will be conducted to evaluate recent developments in NDE equipment and how they might be applied to the unique conditions of high-level waste tanks. This review will provide a forum for experts from academia and industry to provide recommendations for cost effective NDE of both the tank steel and concrete materials. Participation in the Review is open to anyone interested in NDE techniques for waste tanks, including interested participants from industry and vendors, who will be invited to make presentations of recent improvements to equipment. The Review will also present a platform for discussion of the underlying philosophy of the use of NDE in an in-service inspection program. The use of statistical methods to evaluate the accuracy and disposition the results will also be discussed. From this, recommendations will be made for the NDE inspection program.

367

Radiography Facility - Building 239 Independent Validation Review  

SciTech Connect

The purpose of this task was to perform an Independent Validation Review to evaluate the successful implementation and effectiveness of Safety Basis controls, including new and revised controls, to support the implementation of a new DSA/TSR for B239. This task addresses Milestone 2 of FY10 PEP 7.6.6. As the first IVR ever conducted on a LLNL nuclear facility, it was designated a pilot project. The review follows the outline developed for Milestone 1 of the PEP, which is based on the DOE Draft Guide for Performance of Independent Verification Review of Safety Basis Controls. A formal Safety Basis procedure will be developed later, based on the lessons learned with this pilot project. Note, this review is termed a ''Validation'' in order to be consistent with the PEP definition and address issues historically raised about verification mechanisms at LLNL. Validation is intended to confirm that implementing mechanisms realistically establish the ability of TSR LCO, administrative control or safety management program to accomplish its intended safety function and that the controls are being implemented. This effort should not, however, be confused with a compliance assessment against all relevant DOE requirements and national standards. Nor is it used as a vehicle to question the derivation of controls already approved by LSO unless a given TSR statement simply cannot be implemented as stated.

Altenbach, T J; Beaulieu, R A; Watson, J F; Wong, H J

2010-02-02T23:59:59.000Z

368

Nonlinear Extraction of Independent Components of Natural Images Using Radial Gaussianization  

E-Print Network (OSTI)

We consider the problem of efficiently encoding a signal by transforming it to a new representation whose components are statistically independent. A widely studied linear solution, known as independent component analysis (ICA), exists for the case when the signal is generated as a linear transformation of independent nongaussian sources. Here, we examine a complementary case, in which the source is nongaussian and elliptically symmetric. In this case, no invertible linear transform suffices to decompose the signal into independent components, but we show that a simple nonlinear transformation, which we call radial gaussianization (RG), is able to remove all dependencies. We then examine this methodology in the context of natural image statistics. We first show that distributions of spatially proximal bandpass filter responses are better described as elliptical than as linearly transformed independent sources. Consistent with this, we demonstrate that the reduction in dependency achieved by applying RG to either nearby pairs or blocks of bandpass filter responses is significantly greater than that achieved by ICA. Finally, we show that the RG transformation may be closely approximated by divisive normalization, which has been used to model the nonlinear response properties of visual neurons.

Siwei Lyu; Eero P. Simoncelli

2009-01-01T23:59:59.000Z

369

Design of Slurry Bubble Column Reactors: Novel Technique for Optimum Catalyst Size Selection  

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

Slurry Bubble Column Reactors: Novel Technique Slurry Bubble Column Reactors: Novel Technique for Optimum Catalyst Size Selection Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking licensing partners interested in implementing United States Patent Number 7,619,011 entitled "Design of Slurry Bubble Column Reactors: Novel Technique for Optimum Catalyst Size Selection." Disclosed in this patent is a method to determine the optimum catalyst particle size for application in a fluidized bed reactor, such as a slurry bubble column reactor (SBCR), to convert synthesis gas into liquid fuels. The reactor can be gas-solid, liquid- solid, or gas-liquid-solid. The method considers the complete granular temperature balance based on the kinetic theory of

370

Small Column Ion Exchange Technology at Savannah River Site | Department of  

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

Small Column Ion Exchange Technology at Savannah River Site Small Column Ion Exchange Technology at Savannah River Site Small Column Ion Exchange Technology at Savannah River Site The Small Column Ion Exchange (SCIX) system being developed for deployment at the Savannah River Site (SRS) is a supplementary salt waste processing technology that, if implemented, will augment the baseline Salt Waste Processing Facility (SWPF) capability. An opportunity exists to shorten the SRS radioactive waste system lifecycle by 6 years, and significantly reduce life cycle costs, by accelerating salt processing to earlier completion, simultaneous with sludge vitrification. As described in the Enhanced Tank Waste Strategy, which is part of the Department of Energy (DOE) Office of Environmental Management (EM) Roadmap - EM Journey to Excellence,

371

Engineering development of slurry bubble column reactor (SBCR) technology. Quarterly report, January 1--March 31, 1996  

DOE Green Energy (OSTI)

The major technical objectives of this program are threefold: (1) to develop the design tools and a fundamental understanding of the fluid dynamics of a slurry bubble column reactor to maximize reactor productivity; (2) to develop the mathematical reactor design models and gain an understanding of the hydrodynamic fundamentals under industrially relevant process conditions; and (3) to develop an understanding of the hydrodynamics and their interaction with the chemistries occurring in the bubble column reactor. Successful completion of these objectives will permit more efficient usage of the reactor column and tighter design criteria, increase overall reactor efficiency, and ensure a design that leads to stable reactor behavior when scaling up to large diameter reactors. The main part of this report describes tracer studies of slurry bubble column hydrodynamics during methanol synthesis.

Toseland, B.A.; Tischer, R.E.

1997-12-31T23:59:59.000Z

372

A method for evaluating bias in global measurements of CO2 total columns from space  

E-Print Network (OSTI)

on North American carbon dioxide exchange: CarbonTracker,over Kitt Peak. I Carbon dioxide and methane from 1979 toD. , and Daube, B. : Carbon dioxide column abundances at the

Wunch, D.

2013-01-01T23:59:59.000Z

373

About Us Nanotechnology News Columns Products Directories Career Center My Account Google Search  

E-Print Network (OSTI)

About Us Nanotechnology News Columns Products Directories Career Center My Account Google Search. Bookmark: The latest news from around the world, FREE Subscribe Ads by Google Teleportation Nanotechnology.fluigent.com Ads by Google Nanotechnology Now - Press Release

Leigh, David A.

374

Usefulness of Single Column Model Diagnosis through Short-Term Predictions  

Science Conference Proceedings (OSTI)

Single column models (SCMs) provide an economical framework for developing and diagnosing representations of diabatic processes in weather and climate models. Their economy is achieved at the price of ignoring interactions with the circulation ...

John W. Bergman; Prashant D. Sardeshmukh

2003-11-01T23:59:59.000Z

375

Test of a Convective Wake Parameterization in the Single-Column Version of CCM3  

Science Conference Proceedings (OSTI)

A convective wake parameterization incorporated into the single-column (SCM) version of the NCAR Community Climate Model CCM3 is tested using observational data from 12 squall line cases to determine whether it can successfully reproduce ...

John J. Rozbicki; George S. Young; Liying Qian

1999-06-01T23:59:59.000Z

376

The Long-Term Coupling between Column Ozone and Tropopause Properties  

Science Conference Proceedings (OSTI)

The observational data of the vertical temperature distribution and column ozone, obtained from 10 main stations in the Northern Hemisphere, are analyzed in order to explore the tropopause variations in conjunction with the dynamical variability ...

Costas Varotsos; Costas Cartalis; Andrew Vlamakis; Chris Tzanis; Iphigenia Keramitsoglou

2004-10-01T23:59:59.000Z

377

Inexpensive Near-IR Sun Photometer for Measuring Total Column Water Vapor  

Science Conference Proceedings (OSTI)

An inexpensive two-channel near-IR sun photometer for measuring total atmospheric column water vapor (precipitable water) has been developed for use by the Global Learning and Observations to Benefit the Environment (GLOBE) environmental science ...

David R. Brooks; Forrest M. Mims III; Richard Roettger

2007-07-01T23:59:59.000Z

378

A Technique for Deriving Column-integrated Water Content Using VAS Split-Window Data  

Science Conference Proceedings (OSTI)

An algorithm is examined that uses Visible?Infrared Spin Scan Radiometer (VISSR) Atmospheric Sounder (VAS) 11- and 12-m (split-window) data to derive column-integrated water content (IWC) at mesoscale resolution. The algorithm is physically ...

Anthony R. Guillory; Gary J. Jedlovec; Henry E. Fuelberg

1993-07-01T23:59:59.000Z

379

Soft Sensing Based on LS-SVM and Its Application to a Distillation Column  

Science Conference Proceedings (OSTI)

Dry point of aviation kerosene in the atmospheric distillation column is a very important process value for quality controlling. But unfortunately few on-line hardware sensors are available to this value or such sensors are difficult to maintain. This ...

Yafen Li; Qi Li; Huijuan Wang; Ningsheng Ma

2006-10-01T23:59:59.000Z

380

Independence Biofuels Inc | Open Energy Information  

Open Energy Info (EERE)

Biofuels Inc Biofuels Inc Jump to: navigation, search Name Independence Biofuels Inc Place Middletown, Pennsylvania Zip 17057 Sector Renewable Energy, Vehicles Product Provides clean, renewable energy for diesel vehicles and home and commercial heating oil systems. Coordinates 39.033545°, -78.272579° 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":39.033545,"lon":-78.272579,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "independent column approximation" 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

California Independent System Operator | Open Energy Information  

Open Energy Info (EERE)

Operator Operator Jump to: navigation, search 200px Name California Independent System Operator Address California ISO P.O. Box 639014 Place Folsom, California Zip 95763-9014 Sector Services Phone number 916-351-4400 Website http://www.caiso.com Coordinates 38.68°, -121.18° 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":38.68,"lon":-121.18,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

382

Independent Energy Corporation | Open Energy Information  

Open Energy Info (EERE)

Corporation Corporation Jump to: navigation, search Name Independent Energy Corporation Place Colton, California Zip 92324 Sector Hydro, Hydrogen Product Generator planning to develop build large-scale modular Hydrogen production units. Coordinates 46.568005°, -117.129269° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":46.568005,"lon":-117.129269,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

383

Independent Energy Solutions | Open Energy Information  

Open Energy Info (EERE)

Solutions Solutions Jump to: navigation, search Name Independent Energy Solutions Address 1090 Joshua Way Place Vista, California Zip 92081 Sector Solar Product Renewable energy development, engineering and construction firm Website http://www.indenergysolutions. Coordinates 33.148298°, -117.230822° 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":33.148298,"lon":-117.230822,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

384

Independent Activity Report, Pacific Northwest National Laboratory -  

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

Pacific Northwest National Laboratory Pacific Northwest National Laboratory - January 2012 Independent Activity Report, Pacific Northwest National Laboratory - January 2012 January 2012 Pacific Northwest National Laboratory Orientation Visit [HIAR-PNNL-2012-01-11] The U.S. Department of Energy (DOE) Office of Enforcement and Oversight, within the Office of Health, Safety and Security (HSS), conducted an orientation visit for the HSS site lead at the Pacific Northwest National Laboratory (PNNL) and the Pacific Northwest Site Office (PNSO), Richland, WA, on January 11, 2012. The purpose of the visit was to discuss the nuclear safety oversight strategy, describe the site lead program, increase HSS personnel's operational awareness of the Lab's activities at the Radiochemical Processing Laboratory (RPL), and identify specific activities

385

Independence Test for High Dimensional Random Vectors  

E-Print Network (OSTI)

This paper proposes a new mutual independence test for a large number of high dimensional random vectors. The test statistic is based on the characteristic function of the empirical spectral distribution of the sample covariance matrix. The asymptotic distributions of the test statistic under the null and local alternative hypotheses are established as dimensionality and the sample size of the data are comparable. We apply this test to examine multiple MA(1) and AR(1) models, panel data models with some spatial cross-sectional structures. In addition, in a flexible applied fashion, the proposed test can capture some dependent but uncorrelated structures, for example, nonlinear MA(1) models, multiple ARCH(1) models and vandermonde matrices. Simulation results are provided for detecting these dependent structures. An empirical study of dependence between closed stock prices of several companies from New York Stock Exchange (NYSE) demonstrates that the feature of cross--sectional dependence is popular in stock m...

Pan, G M; Yang, Y; Guo, M

2012-01-01T23:59:59.000Z

386

Independent to start gas flow in Moldova  

Science Conference Proceedings (OSTI)

A small independent operator hopes to start gas production this year in the eastern European republic of Moldova, which imports all oil and gas, mainly from Russia. Redeco Ltd. LLC, Oklahoma City, is seeking commercial customers in the town of Baimaclia for gas from a planned 5 km sales pipeline from nearby Victorovca field. The company is affiliated with Redexco ltd., Calgary, and Costilla Energy Inc., Midland, Tex. Redeco`s Victorovca 302 workover well in Cantemir County flowed 500 Mcfd of gas in December from 1,976--86 ft in the Miocene Sarmat formation. The well is in the eastern Carpathian basin. Most wells in Victorovca field are 30--45 years old, but Redeco believes it could economically redrill the field. Victorovca field extends about 12 km east-west and 4 km north-south.

NONE

1997-02-03T23:59:59.000Z

387

Independent Activity Report, Sandia National Laboratories - March 2013 |  

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

Sandia National Laboratories - March Sandia National Laboratories - March 2013 Independent Activity Report, Sandia National Laboratories - March 2013 March 2013 Operational Awareness Oversight of Sandia National Laboratories [HIAR SNL-2013-03-18] The purpose of this Office of Health, Safety and Security (HSS) Independent Oversight activity was to perform an operational awareness site visit to Sandia National Laboratories (SNL) to discuss Annular Core Research Reactor (ACRR) issues and improvement plan. SNL management also briefed Independent Oversight on engineered safety implementation. Independent Activity Report, Sandia National Laboratories - March 2013 More Documents & Publications Independent Activity Report, Sandia National Laboratories - April 2012 Independent Oversight Targeted Review, Sandia National Laboratories -

388

Independent Activity Report, Sandia National Laboratories - March 2013 |  

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

March March 2013 Independent Activity Report, Sandia National Laboratories - March 2013 March 2013 Operational Awareness Oversight of Sandia National Laboratories [HIAR SNL-2013-03-18] The purpose of this Office of Health, Safety and Security (HSS) Independent Oversight activity was to perform an operational awareness site visit to Sandia National Laboratories (SNL) to discuss Annular Core Research Reactor (ACRR) issues and improvement plan. SNL management also briefed Independent Oversight on engineered safety implementation. Independent Activity Report, Sandia National Laboratories - March 2013 More Documents & Publications Independent Activity Report, Sandia National Laboratories - April 2012 Independent Oversight Targeted Review, Sandia National Laboratories -

389

Discrete Variational Calculus for B-spline Approximated Curves  

E-Print Network (OSTI)

We study variational problems for curves approximated by B-spline curves. We show that, one can obtain discrete Euler-Lagrange equations, for the data describing the approximated curves. Our main application is to the curve completion problem in 2D and 3D. In this case, the aim is to find various aesthetically pleasing solutions as opposed to a solution of a physical problem. The Lagrangians of interest are invariant under the special Euclidean group action for which B-spline approximated curves are well suited. Smooth Lagrangians with special Euclidean symmetries involve curvature, torsion, and arc length. Expressions in these, in the original coordinates, are highly complex. We show that, by contrast, relatively simple discrete Lagrangians offer excellent results for the curve completion problem. The methods we develop for the discrete curve completion problem are general and can be used to solve other discrete variational problems for B-spline curves.

Zhao, Jun

2010-01-01T23:59:59.000Z

390

Efficient algorithm for approximating one-dimensional ground states  

Science Conference Proceedings (OSTI)

The density-matrix renormalization-group method is very effective at finding ground states of one-dimensional (1D) quantum systems in practice, but it is a heuristic method, and there is no known proof for when it works. In this article we describe an efficient classical algorithm which provably finds a good approximation of the ground state of 1D systems under well-defined conditions. More precisely, our algorithm finds a matrix product state of bond dimension D whose energy approximates the minimal energy such states can achieve. The running time is exponential in D, and so the algorithm can be considered tractable even for D, which is logarithmic in the size of the chain. The result also implies trivially that the ground state of any local commuting Hamiltonian in 1D can be approximated efficiently; we improve this to an exact algorithm.

Aharonov, Dorit; Arad, Itai; Irani, Sandy [School of Computer Science and Engineering, Hebrew University, Jerusalem (Israel); School of Computer Science, Tel-Aviv University, Tel-Aviv (Israel); Computer Science Department, University of California, Irvine, California (United States)

2010-07-15T23:59:59.000Z

391

GRID INDEPENDENT FUEL CELL OPERATED SMART HOME  

SciTech Connect

A fuel cell power plant, which utilizes a smart energy management and control (SEMaC) system, supplying the power need of laboratory based ''home'' has been purchased and installed. The ''home'' consists of two rooms, each approximately 250 sq. ft. Every appliance and power outlet is under the control of a host computer, running the SEMaC software package. It is possible to override the computer, in the event that an appliance or power outage is required. Detailed analysis and simulation of the fuel cell operated smart home has been performed. Two journal papers has been accepted for publication and another journal paper is under review. Three theses have been completed and three additional theses are in progress.

Dr. Mohammad S. Alam

2003-12-07T23:59:59.000Z

392

GRID INDEPENDENT FUEL CELL OPERATED SMART HOME  

DOE Green Energy (OSTI)

A fuel cell power plant, which utilizes a smart energy management and control (SEMaC) system, supplying the power need of laboratory based ''home'' has been purchased and installed. The ''home'' consists of two rooms, each approximately 250 sq. ft. Every appliance and power outlet is under the control of a host computer, running the SEMaC software package. It is possible to override the computer, in the event that an appliance or power outage is required. Detailed analysis and simulation of the fuel cell operated smart home has been performed. Two journal papers has been accepted for publication and another journal paper is under review. Three theses have been completed and three additional theses are in progress.

Dr. Mohammad S. Alam

2003-12-07T23:59:59.000Z

393

Approximations for radiative cooling and heating in the solar chromosphere  

E-Print Network (OSTI)

Context. The radiative energy balance in the solar chromosphere is dominated by strong spectral lines that are formed out of LTE. It is computationally prohibitive to solve the full equations of radiative transfer and statistical equilibrium in 3D time dependent MHD simulations. Aims. To find simple recipes to compute the radiative energy balance in the dominant lines under solar chromospheric conditions. Methods. We use detailed calculations in time-dependent and 2D MHD snapshots to derive empirical formulae for the radiative cooling and heating. Results. The radiative cooling in neutral hydrogen lines and the Lyman continuum, the H and K and intrared triplet lines of singly ionized calcium and the h and k lines of singly ionized magnesium can be written as a product of an optically thin emission (dependent on temperature), an escape probability (dependent on column mass) and an ionization fraction (dependent on temperature). In the cool pockets of the chromosphere the same transitions contribute to the heat...

Carlsson, Mats

2012-01-01T23:59:59.000Z

394

Moment matching approximation of Asian basket option prices  

Science Conference Proceedings (OSTI)

In this paper we propose some moment matching pricing methods for European-style discrete arithmetic Asian basket options in a Black & Scholes framework. We generalize the approach of [M. Curran, Valuing Asian and portfolio by conditioning on the geometric ... Keywords: 60J65, 91B28, Asian basket option, Log-extended-skew-normal, Moment matching, Sum of non-independent random variables

Griselda Deelstra; Ibrahima Diallo; Michle Vanmaele

2010-06-01T23:59:59.000Z

395

approximately 200 megawatts (MWs) of power from TCEP, making  

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

approximately 200 megawatts (MWs) of power from TCEP, making approximately 200 megawatts (MWs) of power from TCEP, making it the first U.S. purchase by a utility of low-carbon power from a commercial-scale, coal-based power plant with carbon capture. The 400-MW TCEP plant is a first-of-its-kind integrated gasification combined cycle (IGCC) poly-generation facility capable of capturing 90 percent of the carbon dioxide (CO 2 ) it produces. The $2.4-billion plant was a third round selection under DOE's Clean Coal Power Initiative

396

Efficient classical simulation of the approximate quantum Fourier transform  

E-Print Network (OSTI)

We present a method for classically simulating quantum circuits based on the tensor contraction model of Markov and Shi (quant-ph/0511069). Using this method we are able to classically simulate the approximate quantum Fourier transform in polynomial time. Moreover, our approach allows us to formulate a condition for the composability of simulable quantum circuits. We use this condition to show that any circuit composed of a constant number of approximate quantum Fourier transform circuits and log-depth circuits with limited interaction range can also be efficiently simulated.

Nadav Yoran; Anthony J. Short

2006-11-23T23:59:59.000Z

397

Are there approximate relations among transverse momentum dependent distribution functions?  

SciTech Connect

Certain {\\sl exact} relations among transverse momentum dependent parton distribution functions due to QCD equations of motion turn into {\\sl approximate} ones upon the neglect of pure twist-3 terms. On the basis of available data from HERMES we test the practical usefulness of one such ``Wandzura-Wilczek-type approximation'', namely of that connecting $h_{1L}^{\\perp(1)a}(x)$ to $h_L^a(x)$, and discuss how it can be further tested by future CLAS and COMPASS data.

Harutyun AVAKIAN; Anatoli Efremov; Klaus Goeke; Andreas Metz; Peter Schweitzer; Tobias Teckentrup

2007-10-11T23:59:59.000Z

398

On k-jet field approximations of geodesic deviation equations  

E-Print Network (OSTI)

Let M be a smooth manifold and S a spray defined on the convex cone C of the tangent bundle TM. It is proved that the only non-trivial k-jet approximation of the exact geodesic deviation equation of S, linear on the deviation functions and invariant under arbitrary local coordinate transformations corresponds to the Jacobi equation. However, if linearity in the deviation functions is not required, there are differential equations whose solutions admit k-jet approximations and are invariant under arbitrary coordinate transformations. As an example of higher order geodesic deviation equations we study the first and second order jet geodesic deviation equations for a Finsler spray.

Torrom, Ricardo Gallego

2013-01-01T23:59:59.000Z

399

QueryLines: approximate query for visual browsing  

E-Print Network (OSTI)

We introduce approximate query techniques for searching and analyzing two-dimensional data sets such as line or scatter plots. Our techniques allow users to explore a dataset by defining QueryLines: soft constraints and preferences for selecting and sorting a subset of the data. By using both preferences and soft constraints for query composition, we allow greater flexibility and expressiveness than previous visual query systems. When the user over-constrains a query, for example, a system using approximate techniques can display near missesto enable users to quickly and continuously refine queries.

Kathy Ryall; Neal Lesh; Hiroaki Miyashita; Shigeru Makino; Tom Lanning; Tom Lanning; Darren Leigh; Darren Leigh

2005-01-01T23:59:59.000Z

400

Properties of derivative expansion approximations to the renormalization group  

E-Print Network (OSTI)

Approximation only by derivative (or more generally momentum) expansions, combined with reparametrization invariance, turns the continuous renormalization group for quantum field theory into a set of partial differential equations which at fixed points become non-linear eigenvalue equations for the anomalous scaling dimension $\\eta$. We review how these equations provide a powerful and robust means of discovering and approximating non-perturbative continuum limits. Gauge fields are briefly discussed. Particular emphasis is placed on the r\\^ole of reparametrization invariance, and the convergence of the derivative expansion is addressed.

Tim R. Morris

1996-10-02T23:59:59.000Z

Note: This page contains sample records for the topic "independent column approximation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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401

1  

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

Representing Sub-Grid Scale Cloud Variability with Monte- Carlo Independent Column Approximation and RRTMG in the National Center for Atmospheric Research Community Atmosphere...

402

Integrated AMP-PAN, TRUEX, and SREX Flowsheet Test to Remove Cesium, Surrogate Actinide Elements, and Strontium from INEEL Tank Waste Using Sorbent Columns and Centrifugal Contactors  

Science Conference Proceedings (OSTI)

Three unit operations for the removal of selected fission products, actinides, and RCRA metals (mercury and lead) have been successfully integrated and tested for extended run times with simulated INEEL acidic tank waste. The unit operations were ion exchange for Cs removal, followed by TRUEX solvent extraction for Eu (actinide surrogate), Hg, and Re (Tc surrogate) removal, and subsequent SREX solvent extraction for Sr and Pb removal. Approximately 45 L of simulated INTEC tank waste was first processed through three ion exchange columns in series for selective Cs removal. The columns were packed with a composite ammonium molybdophosphate-polyacrylonitrile (AMP-PAN) sorbent. The experimental breakthrough data were in excellent agreement with modeling predictions based on data obtained with much smaller columns. The third column (220 cm3) was used for polishing and Cs removal after breakthrough of the up-stream columns. The Cs removal was >99.83% in the ion exchange system without interference from other species. Most of the effluent from the ion exchange (IX) system was immediately processed through a TRUEX solvent extraction flowsheet to remove europium (americium surrogate), mercury and rhenium (technetium surrogate) from the simulated waste. The TRUEX flowsheet test was performed utilizing 23 stages of 3.3-cm centrifugal contactors. Greater than 99.999% of the Eu, 96.3% of the Hg, and 56% of the Re were extracted from the simulated feed and recovered in the strip and wash streams. Over the course of the test, there was no detectable build-up of any components in the TRUEX solvent. The raffinate from the TRUEX test was stored and subsequently processed several weeks later through a SREX solvent extraction flowsheet to remove strontium, lead, and Re (Tc surrogate) from the simulated waste. The SREX flowsheet test was performed using the same centrifugal contactors used in the TRUEX test after reconfiguration and the addition of three stages. Approximately 99.9% of the Sr, >99.89% of the Pb, and >96.4% of the Re were extracted from the aqueous feed to the SREX flowsheet and recovered in the strip and wash sections. Approximately 41 L of simulated tank waste (based on the volume processed through the TRUEX flowsheet) was processed through the integrated flowsheet and resulted in 175 L of liquid high activity waste (HAW) and 219.6 L of liquid low activity waste (LAW). The HAW fraction would be evaporated, dried and subsequently vitrified for final disposal. Based on current baseline assumptions, including a maximum phosphate loading of 2.5 wt. % in the HAW glass, the flowsheet tested would result in the production 0.195 kg of glass per L of tank waste processed. The LAW fraction would be solidified (via evaporation and denitration) and subsequently grouted. The current baseline assumptions for grouting the LAW stream indicate 0.37 kg of grout would be produced per L of tank waste treated. Under these assumptions, treating the current inventory of {approximately}5 E+6 L (5,000 m3) of tank waste would result in 375 m3 of HAW glass and 1,135 m3 of LAW Class A performance grout. The HAW glass volume could be significantly decreased by suitable TRUEX flowsheet modifications.

Herbst, R.S.; Law, J.D.; Todd, T.A.; Wood, D.J.; Garn, T.G.; Wade, E.L.

2000-01-31T23:59:59.000Z

403

TARGETED TECHNOLOGY TRANSFER TO US INDEPENDENTS  

SciTech Connect

The Petroleum Technology Transfer Council (PTTC) continued pursuing its mission of assisting U.S. independent oil and gas producers with timely, informed technology decisions during Fiscal Year 2004 (FY04). PTTC has active grassroots programs through its 10 Regional Lead Organizations (RLOs) and 2 satellite offices. They bring research and academia to the table via their association with geological surveys and engineering departments. The regional directors interact with independent oil and gas producers through technology workshops, resource centers, websites, newsletters, technical publications and other cooperative outreach efforts. PTTC's Headquarters (HQ) staff receives direction from a National Board of Directors predominantly comprised of American natural gas and oil producers to plan and manage the overall technology transfer program. PTTC HQ implements a comprehensive communications program by interconnecting the talents of the National Board, 10 Regional Producer Advisory Groups (PAG) and the RLOs with industry across the U.S. PTTC effectively combines federal funding through the Department of Energy's (DOE) Office of Fossil Energy, namely the Strategic Center for Natural Gas and Oil with state and industry contributions to share application of upstream technologies. Ultimately, these efforts factor in to provide a safe, secure and reliable energy supply for American consumers. This integrated resource base, combined with industry volunteers guiding PTTC's activities and the dedication of national and regional staff, are achieving notable results regarding domestic production figures. PTTC is increasingly recognized as a critical resource for information and access to technologies by providing direct contact with research, development and demonstration (RD&D) results. A key to the program is demonstrating proven technologies that can be applied broadly and rapidly. This technical progress report summarizes PTTC's accomplishments during FY04. Activities remained at high levels. Board and staff interaction has defined strategic thrusts to further outreach. Networking, involvement in technical activities and an active exhibit schedule are increasing PTTC's sphere of influence with both producers and the service sector. PTTC's reputation for unbiased bottom line information stimulates cooperative ventures with other organizations. Efforts to build the contact database and a growing E-mail Technology Alert service are expanding PTTC's audience.

Donald F. Duttlinger; E. Lance Cole

2005-01-01T23:59:59.000Z

404

Iowa Office of Energy Independence | Open Energy Information  

Open Energy Info (EERE)

Iowa Office of Energy Independence Iowa Office of Energy Independence Jump to: navigation, search Name Iowa Office of Energy Independence Place Des Moines, Iowa Zip IA 50319 Product In 2007, Governor Culver and the Iowa State Legislature created the Office of Energy Independence and the Iowa Power Fund to accelerate Iowaâ€(tm)s leadership in energy for the 21st Century. References Iowa Office of Energy Independence[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Iowa Office of Energy Independence is a company located in Des Moines, Iowa . References ↑ "Iowa Office of Energy Independence" Retrieved from "http://en.openei.org/w/index.php?title=Iowa_Office_of_Energy_Independence&oldid=347104

405

Independent transmission company (ITC) and markets for transmission  

E-Print Network (OSTI)

Independent Abstract-- transmission company (ITC) and markets for transmission Yong T. Yoon Marija a fundamental structure for the transmission provider (TP) composed of the independent transmission company (ITC out the associated functions including managing transmission congestion. At the minimum

Ilic, Marija D.

406

DOE O 227.1, Independent Oversight Program  

Directives, Delegations, and Requirements

The order prescribes the requirements and responsibilities for the DOE Independent Oversight Program. Cancels DOE O 470.2B.

2011-08-30T23:59:59.000Z

407

Best Approximation in the Mean by Analytic and Harmonic Functions  

E-Print Network (OSTI)

* *ng the annihilator Ann (Hp) in Lq(T, d`)as Hq0= {f 2 Hq : f(0) = 0}, q = __p__pt-u1rns* * out is organized as follows. In Section 2we prove the exi* *stence of best approximations and characterize them

McCarthy, John E.

408

Asymptotic Approximations to the Distributed Activation Energy Model  

E-Print Network (OSTI)

Asymptotic Approximations to the Distributed Activation Energy Model M.J.McGuinness1 , E. Donskoi2 by a continuum distribution in activation energy of individual re- actions. An individual reaction is characterised by a pre-exponential coefficient and an activation energy. The distribution, usually Gaussian

McGuinness, Mark

409

Choosing an Approximation to the Equation of Radiative Transfer  

Science Conference Proceedings (OSTI)

We examine the accuracy of the PL, approximation to the equation of radiative transfer in the presence of scattering/absorbing clouds of various optical thicknesses. We find that very accurate net fluxes can be obtained with the P1, (two-stream) ...

James A. Fillmore; Alan H. Karp

1980-08-01T23:59:59.000Z

410

Hierarchical Structure for function approximation using radial basis function  

Science Conference Proceedings (OSTI)

The hierarchial network proposed (Multi-RBFNN), is composed of complete Radial Basis Function Neural Networks (RBFNNs) that are in charge of a reduced set of input variables with the property of which every Sub-RBFNN can take charge of a set of input ... Keywords: function approximation, hierarchical architectures, input variable selection, radial bases functions

A. Awad; H. Pomares; I. Rojas; L. J. Herrera; A. Guillen; O. Valenzuela

2005-12-01T23:59:59.000Z

411

Uniqueness and Approximated Computation of Optimal Incomplete Transportation Plans  

E-Print Network (OSTI)

Uniqueness and Approximated Computation of Optimal Incomplete Transportation Plans P. C. ´Alvarez Transportation, where a part of the mass could be not necessarily transported. Since optimal transportation plans consistency result. As a remarkable and unexpected additional result, with important implications for future

Cuesta, Juan Antonio

412

On the Approximability of Reachability Preserving Network Orientations  

E-Print Network (OSTI)

On the Approximability of Reachability Preserving Network Orientations Michael Elberfeld Institute@post.tau.ac.il Abstract We introduce a graph orientation problem arising in the study of biological networks. Given an undirected graph and a list of ordered source-target vertex pairs, the goal is to orient the graph

Sharan, Roded

413

Matrix Approximation and Projective Clustering via Iterative Sampling  

E-Print Network (OSTI)

We present two new results for the problem of approximating a given real m by n matrix A by a rank-k matrix D, where k < min{m, n}, so as to minimize ||A-D||_F^2. It is known that bysampling O(k/eps) rows of the matrix, ...

Rademacher, Luis

2005-03-29T23:59:59.000Z

414

APPROXIMATE DYNAMIC PROGRAMMING METHODS FOR COOPERATIVE UAV SEARCH  

E-Print Network (OSTI)

APPROXIMATE DYNAMIC PROGRAMMING METHODS FOR COOPERATIVE UAV SEARCH Matthew Flint Emmanuel 01801 matt.flint@baesystems.com Dept. of Electrical and Computer Engineering and Computer Science by the authors of this paper e.g. (Flint et al., 2003b), (Flint et al., 2003a), (Flint et al., 2004); and others

Fernandez, Emmanuel

415

Gluon Condensate in Pion Superfluid beyond Mean Field Approximation  

E-Print Network (OSTI)

We study gluon condensate in a pion superfluid, through calculating the equation of state of the system in the Nambu-Jona-Lasinio model. While in mean field approximation the growing pion condensate leads to an increasing gluon condensate, meson fluctuations reduce the gluon condensate and the broken scalar symmetry can be smoothly restored at finite isospin density.

Yin Jiang; Pengfei Zhuang

2010-12-10T23:59:59.000Z

416

Elastic approximation for a solar parabolic February 29, 2012  

E-Print Network (OSTI)

Elastic approximation for a solar parabolic trough February 29, 2012 Gang Xiao (University of Nice, France) Abstract For the production of the reective surface of a solar parabolic trough concentrator energy solutions. Introduction A parabolic trough [8] is a concentrating solar thermal energy collector

Paris-Sud XI, Université de

417

Weak lensing and the Dyer-Roeder approximation  

E-Print Network (OSTI)

The distance-redshift relation plays an important role in cosmology. In the standard approach to cosmology it is assumed that this relation is the same as in the homogeneous universe. As the real universe is not homogeneous there are several methods to calculate the correction. The weak lensing approximation and the Dyer-Roeder relation are one of them. This paper establishes a link between these two approximations. It is shown that if the universe is homogeneous with only small, vanishing after averaging, density fluctuations along the line of sight, then the distance correction is negligible. It is also shown that a vanishing 3D average of density fluctuations does not imply that the mean of density fluctuations along the line of sight is zero. In this case, even within the linear approximation, the distance correction is not negligible. The modified version of the Dyer-Roeder relation is presented and it is shown that this modified relation is consistent with the correction obtained within the weak lensing approximation. The correction to the distance for a source at z ~ 2 is of order of a few percent. Thus, with an increasing precision of cosmological observations an accurate estimation of the distance is essential. Otherwise errors due to miscalculation the distance can become a major source of systematics.

Krzysztof Bolejko

2010-11-17T23:59:59.000Z

418

Absorption Approximation with Scattering Effect for Infrared Radiation  

Science Conference Proceedings (OSTI)

A scheme that can handle cloud infrared scattering based on the absorption approximation is developed. In a two-stream mode, the new scheme produces more accurate results than those from the modified two-stream discrete ordinate method. For low ...

J. Li; Qiang Fu

2000-09-01T23:59:59.000Z

419

The "True" Column Density Distribution in Star-Forming Molecular Clouds  

E-Print Network (OSTI)

We use the COMPLETE Survey's observations of the Perseus star-forming region to assess and intercompare three methods for measuring column density in molecular clouds: extinction mapping (NIR); thermal emission mapping (FIR); and mapping the intensity of CO isotopologues. The structures shown by all three tracers are morphologically similar, but important differences exist. Dust-based measures give similar, log-normal, distributions for the full Perseus region, once careful calibration corrections are made. We also compare dust- and gas-based column density distributions for physically-meaningful sub-regions of Perseus, and we find significant variations in the distributions for those regions. Even though we have used 12CO data to estimate excitation temperatures, and we have corrected for opacity, the 13CO maps seem unable to give column distributions that consistently resemble those from dust measures. We have edited out the effects of the shell around the B-star HD 278942. In that shell's interior and in the parts where it overlaps the molecular cloud, there appears to be a dearth of 13CO, likely due either to 13CO not yet having had time to form in this young structure, and/or destruction of 13CO in the molecular cloud. We conclude that the use of either dust or gas measures of column density without extreme attention to calibration and artifacts is more perilous than even experts might normally admit. And, the use of 13CO to trace total column density in detail, even after proper calibration, is unavoidably limited in utility due to threshold, depletion, and opacity effects. If one's main aim is to map column density, then dust extinction seems the best probe. Linear fits amongst column density tracers are given, quantifying the inherent uncertainties in using one tracer (when compared with others). [abridged

Alyssa A. Goodman; Jaime E. Pineda; Scott L. Schnee

2008-06-20T23:59:59.000Z

420

Independent Component Analysis for Document Restoration  

E-Print Network (OSTI)

We propose a novel approach to restoring digital document images, with the aim of improving text legibility and OCR performance. These are often compromised by the presence of artifacts in the background, derived from many kinds of degradations, such as spots, underwritings, and show-through or bleed-through e#ects. So far, background removal techniques have been based on local, adaptive filters and morphological--structural operators to cope with frequent low-contrast situations. For the specific problem of bleed-through/show-through, most work has been based on the comparison between the front and back pages. This, however, requires a preliminary registration of the two images. Our approach is based on viewing the problem as one of separating overlapped texts and then reformulating it as a blind source separation problem, approached through independent component analysis techniques. These methods have the advantage that no models are required for the background. In addition, we use the spectral components of the image at di#erent bands, so that there is no need for registration. Examples of bleed-through cancellation and recovery of underwriting from palimpsests are provided.

Anna Tonazzini; Luigi Bedini; Emanuele Salerno

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "independent column approximation" 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

Independent System Operators and Biomass Power  

DOE Green Energy (OSTI)

Since the Federal Energy Regulatory Commission issued its landmark open access transmission rule in 1996, the idea of creating and establishing independent system operators (ISOs) has gained momentum. ISOs may help combine individual utility transmission systems into more regional transmission networks, which ultimately will allow biomass companies to transmit power over longer distances while paying a single transmission rate. To the extent that ISOs are combined or operated with power exchanges, however, biomass companies will likely face even more competitive market pressures. Few operators have experience with ISOs and power exchanges, but preliminary results show that short-term electricity market prices are probably too low for most biomass companies to compete against. Without policy measures, biomass companies may have to pursue strategic opportunities with short-term, spot-market sales; direct bilateral sales to customers; alternative power exchanges; and perhaps a ''green'' pow er market and sales to ancillary service markets. In addition, prices will likely be more volatile in a restructured market so biomass generators should be selling during those times.

Porter, K. L.

1999-03-25T23:59:59.000Z

422

An application of distributed approximating functional-wavelets to reactive scattering  

SciTech Connect

A newly developed distributed approximating functional (DAF)-wavelet, the Dirichlet{endash}Gabor DAF-wavelet (DGDW), is applied in a calculation of the state-to-state reaction probabilities for the three-dimensional (3-D) (J=0)H+H{sub 2} reaction, using the time-independent wave-packet reactant-product decoupling (TIWRPD) method. The DGDWs are reconstructed from a rigorous mathematical sampling theorem, and are shown to be DAF-wavelet generalizations of both the sine discrete variable representation (sinc-DVR) and the Fourier distributed approximating functionals (DAFs). An important feature of the generalized sinc-DVR representation is that the grid points are distributed at equally spaced intervals and the kinetic energy matrix has a banded, Toeplitz structure. Test calculations show that, in accordance with mathematical sampling theory, the DAF-windowed sinc-DVR converges much more rapidly and to higher accuracy with bandwidth, 2W+1. The results of the H+H{sub 2} calculation are in very close agreement with the results of previous TIWRPD calculations, demonstrating that the DGDW representation is an accurate and efficient representation for use in FFT wave-packet propagation methods, and that, more generally, the theory of wavelets and related techniques have great potential for the study of molecular dynamics. {copyright} {ital 1998 American Institute of Physics.}

Wei, G.W.; Althorpe, S.C.; Kouri, D.J. [Department of Chemistry and Department of Physics, University of Houston, Houston, Texas77204-5641 (United States); Hoffman, D.K. [Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa50011 (United States)

1998-05-01T23:59:59.000Z

423

FINAL REPORT (DE-FG02-97ER62338): Single-column modeling, GCM parameterizations, and ARM data  

SciTech Connect

Our overall goal is the development of new and improved parameterizations of cloud-radiation effects and related processes, using ARM data at all three ARM sites, and the implementation and testing of these parameterizations in global models. To test recently developed prognostic parameterizations based on detailed cloud microphysics, we have compared SCM (single-column model) output with ARM observations at the SGP, NSA and TWP sites. We focus on the predicted cloud amounts and on a suite of radiative quantities strongly dependent on clouds, such as downwelling surface shortwave radiation. Our results demonstrate the superiority of parameterizations based on comprehensive treatments of cloud microphysics and cloud-radiative interactions. At the SGP and NSA sites, the SCM results simulate the ARM measurements well and are demonstrably more realistic than typical parameterizations found in conventional operational forecasting models. At the TWP site, the model performance depends strongly on details of the scheme, and the results of our diagnostic tests suggest ways to develop improved parameterizations better suited to simulating cloud-radiation interactions in the tropics generally. These advances have made it possible to take the next step and build on this progress, by incorporating our parameterization schemes in state-of-the-art three-dimensional atmospheric models, and diagnosing and evaluating the results using independent data. Because the improved cloud-radiation results have been obtained largely via implementing detailed and physically comprehensive cloud microphysics, we anticipate that improved predictions of hydrologic cycle components, and hence of precipitation, may also be achievable.

Richard C. J. Somerville

2009-02-27T23:59:59.000Z

424

When is the two-level approximation untenable in issues of Decoherence?  

E-Print Network (OSTI)

We examine the conditions in favor and necessity of a realistic multileveled description of a decohering quantum system. Under these conditions approximate techniques to simplify a multileveled system by its first two levels is unreliable and a realistic multilevel description in the formulation of decoherence is unavoidable. In this regard, our first crucial observation is that, the validity of the two level approximation of a multileveled system is not controlled purely by {\\it sufficiently low temperatures}. We demonstrate using three different environmental spectral models that the type of system-environment coupling and the environmental spectrum have a dominant role over the temperature. Particularly, zero temperature quantum fluctuations induced by the Caldeira-Leggett type linear coordinate coupling can be influential in a wide energy range in the systems allowed transitions. The second crucial observation against the validity of the two level approximation is that the decoherence times being among the system's short time scales are found to be dominated not by the resonant but {\\it non-resonant} processes. We demonstrate this in three stages. Firstly, our zero temperature numerical calculations reveal that, the calculated decoherence rates including relaxation, dephasing and leakage phenomena show, a linear dependence on the spectral area for all spectral models used, independent from the spectral shape within a large environmental spectral range compared to the quantum system's energies. Secondly, within the same range, the decoherence times only have a marginal dependence on the translations of the entire frequency spectrum. Finally, the same decoherence rates show strong dependence on the number of coupled levels by the system-environment coupling.

Kerim Savran; Tugrul Hakioglu; Emine Mese

2004-06-22T23:59:59.000Z

425

AN EXPLANATION FOR THE DIFFERENT X-RAY TO OPTICAL COLUMN DENSITIES IN THE ENVIRONMENTS OF GAMMA RAY BURSTS: A PROGENITOR EMBEDDED IN A DENSE MEDIUM  

Science Conference Proceedings (OSTI)

We study the {approx}> 10 ratios in the X-ray to optical column densities inferred from afterglow spectra of gamma ray bursts (GRBs) due to gas surrounding their progenitors. We present time-evolving photoionization calculations for these afterglows and explore different conditions of their environment. We find that homogenous models of the environment (constant density) predict X-ray columns similar to those found in the optical spectra, with the bulk of the opacity being produced by neutral material at large distances from the burst. This result is independent of gas density or metallicity. Only models assuming a progenitor immersed in a dense ({approx}10{sup 2-4} cm{sup -3}) cloud of gas (with radius {approx}10 pc), with a strong, declining gradient of density for the surrounding interstellar medium (ISM) are able to account for the large X-ray to optical column density ratios. However, to avoid an unphysical correlation between the size of this cloud and the size of the ionization front produced by the GRB, the models also require that the circumburst medium is already ionized prior to the burst. The inferred cloud masses are {approx}< 10{sup 6} M{sub Sun }, even if low metallicities in the medium are assumed (Z {approx} 0.1 Z{sub Sun }). These cloud properties are consistent with those found in giant molecular clouds and our results support a scenario in which the progenitors reside within intense star formation regions of galaxies. Finally, we show that modeling over large samples of GRB afterglows may offer strong constraints on the range of properties in these clouds, and the host galaxy ISM.

Krongold, Yair [Instituto de Astronomia, Universidad Nacional Autonoma de Mexico, Apartado Postal 70-264, 04510 Mexico DF (Mexico); Prochaska, J. Xavier, E-mail: xavier@ucolick.org [Department of Astronomy and Astrophysics, UCO/Lick Observatory, University of California, 1156 High Street, Santa Cruz, CA 95064 (United States)

2013-09-10T23:59:59.000Z

426

Fine-grained efficient resource allocation using approximated combinatorial auctions: A parallel greedy winner approximation for large-scale problems  

Science Conference Proceedings (OSTI)

Combinatorial auctions, one of the most popular market mechanisms, have a huge effect on electronic markets and political strategies. Combinatorial auctions provide suitable mechanisms for efficient allocation of resources to self-interested attendees. ... Keywords: approximation, combinatorial auction, multi-agent system, optimization, resource allocation

Naoki Fukuta; Takayuki Ito

2009-01-01T23:59:59.000Z

427

COMPUTATIONAL AND EXPERIMENTAL MODELING OF THREE-PHASE SLURRY-BUBBLE COLUMN REACTOR  

SciTech Connect

Considerable progress has been achieved in understanding three-phase reactors from the point of view of kinetic theory. In a paper in press for publication in Chemical Engineering Science (Wu and Gidaspow, 1999) we have obtained a complete numerical solution of bubble column reactors. In view of the complexity of the simulation a better understanding of the processes using simplified analytical solutions is required. Such analytical solutions are presented in the attached paper, Large Scale Oscillations or Gravity Waves in Risers and Bubbling Beds. This paper presents analytical solutions for bubbling frequencies and standing wave flow patterns. The flow patterns in operating slurry bubble column reactors are not optimum. They involve upflow in the center and downflow at the walls. It may be possible to control flow patterns by proper redistribution of heat exchangers in slurry bubble column reactors. We also believe that the catalyst size in operating slurry bubble column reactors is not optimum. To obtain an optimum size we are following up on the observation of George Cody of Exxon who reported a maximum granular temperature (random particle kinetic energy) for a particle size of 90 microns. The attached paper, Turbulence of Particles in a CFB and Slurry Bubble Columns Using Kinetic Theory, supports George Cody's observations. However, our explanation for the existence of the maximum in granular temperature differs from that proposed by George Cody. Further computer simulations and experiments involving measurements of granular temperature are needed to obtain a sound theoretical explanation for the possible existence of an optimum catalyst size.

Isaac K. Gamwo; Dimitri Gidaspow

1999-09-01T23:59:59.000Z

428

Midwest Independent System Operator (Multiple States) | Department of  

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

Independent System Operator (Multiple States) Independent System Operator (Multiple States) Midwest Independent System Operator (Multiple States) < Back Eligibility Developer Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Montana Program Type Interconnection Provider Midwest Independent System Operator Midwest Independent Transmission System Operator (MISO) is a Regional Transmission Organization, which administers wholesale electricity markets in all or parts of 11 U.S. states and the Canadian province of Manitoba. MISO administers electricity transmission grids across the Midwest and into Canada, and provides tools, transmission planning strategies, and integration for utilities in those markets.

429

Independent Activity Report, Richland Operations Office - April 2013 |  

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

3 3 Independent Activity Report, Richland Operations Office - April 2013 April 2013 Operational Awareness of a Department of Energy Richland Operations Office Fire Protection Surveillance [HIAR-RL-2013-04-08] The U.S. Department of Energy (DOE) Office of Enforcement and Oversight, within the Office of Health, Safety and Security (HSS), performed an onsite operational awareness review of a DOE Richland Operations Office (DOE-RL) fire protection surveillance. Independent Activity Report, Richland Operations Office - April 2013 More Documents & Publications Independent Activity Report, Richland Operations Office - April 2011 Independent Activity Report, Hanford Sludge Treatment Project - February 2012 Independent Activity Report, Richland Operations Office - June 201

430

Independent Oversight Review, Lawrence Livermore National Laboratory - July  

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

Independent Oversight Review, Lawrence Livermore National Independent Oversight Review, Lawrence Livermore National Laboratory - July 2013 Independent Oversight Review, Lawrence Livermore National Laboratory - July 2013 July 2013 Review of Preparedness for Severe Natural Phenomena Events at the Lawrence Livermore National Laboratory The Office of Enforcement and Oversight (Independent Oversight), within the Office of Health, Safety and Security (HSS), conducted an independent review of the National Nuclear Security Administration (NNSA) Livermore Field Office (LFO) and Lawrence Livermore National Laboratory (LLNL) Site 200 preparedness for severe natural phenomena events (NPEs). The HSS Office of Safety and Emergency Management Evaluations performed this review to evaluate the processes for identifying emergency response capabilities and

431

Independent Activity Report, Hanford Sludge Treatment Project - February  

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

Sludge Treatment Project - Sludge Treatment Project - February 2012 Independent Activity Report, Hanford Sludge Treatment Project - February 2012 February 2012 Hanford Sludge Treatment Project Operational Awareness Review [HIAR-RL-2012-02-27] The U.S. Department of Energy's (DOE) Office of Enforcement and Oversight, within the Office of Health, Safety and Security (HSS), performed operational awareness reviews of the Sludge Treatment Project (STP), Engineered Container Retrieval and Transfer System (ECRTS) during site visits. Independent Activity Report, Hanford Sludge Treatment Project - February 2012 More Documents & Publications Independent Activity Report, Richland Operations Office - June 2011 Independent Activity Report, Richland Operations Office - April 2011 Independent Activity Report, Richland Operations Office - August 2011

432

Independent Activity Report, Richland Operations Office - June 2011 |  

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

June 2011 June 2011 Independent Activity Report, Richland Operations Office - June 2011 June 2011 Hanford Cold Vacuum Drying Facility, Multi-Canister Overpack, Operational Proficiency Demonstration [HIAR-RL-2011-06-22] The U.S. Department of Energy's (DOE) Office of Enforcement and Oversight, within the Office of Health, Safety and Security (HSS), performed an operational awareness review of the Cold Vacuum Drying Facility, Multi-Canister Overpack, Operational Proficiency Demonstration. Independent Activity Report, Richland Operations Office - June 2011 More Documents & Publications Independent Oversight Review, Hanford K Basin and Cold Vacuum Drying Facility - August 2012 Independent Activity Report, Hanford Sludge Treatment Project - February 2012 Independent Activity Report, Richland Operations Office - June

433

Independent Activity Report, Portsmouth Gaseous Diffusion Plant - July 2011  

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

Activity Report, Portsmouth Gaseous Diffusion Plant - Activity Report, Portsmouth Gaseous Diffusion Plant - July 2011 Independent Activity Report, Portsmouth Gaseous Diffusion Plant - July 2011 July 2011 Orientation Visit to the Portsmouth Gaseous Diffusion Plant [HIAR-PAD-2011-07-27] The purpose of the visit was to discuss the nuclear safety oversight strategy, describe the site lead program, increase HSS personnel's operational awareness of the site's activities, and to determine how HSS can carry out its independent oversight and mission support responsibilities. Independent Activity Report, Portsmouth Gaseous Diffusion Plant - July 2011 More Documents & Publications Independent Activity Report, Portsmouth Gaseous Diffusion Plant - August 2011 Independent Activity Report, Argonne National Laboratory - August 2011

434

Independent Oversight Review, Waste Treatment and Immobilization Plant -  

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

Treatment and Immobilization Treatment and Immobilization Plant - November 2011 Independent Oversight Review, Waste Treatment and Immobilization Plant - November 2011 November 2011 Review of the Hanford Site Waste Treatment and Immobilization Plant Project Construction Quality The Office of Enforcement and Oversight (Independent Oversight) within the Office of Health, Safety and Security conducted an independent review of selected aspects of construction quality at the Hanford Waste Treatment and Immobilization Plant Project (WTP). The independent oversight review, which was performed September 12-15, 2011, was the latest in a series of ongoing quarterly assessments of construction quality at the WTP construction site. Independent Oversight Review, Waste Treatment and Immobilization Plant -

435

Independent Activity Report, New Brunswick Laboratory - July 2012 |  

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

July 2012 July 2012 Independent Activity Report, New Brunswick Laboratory - July 2012 July 2012 Operational Awareness Oversight of the New Brunswick Laboratory [HIAR NBL-2012-07-20] The purpose of this Office of Health, Safety and Security (HSS) activity was to independently review the closed corrective actions from the Office of Science, Chicago Office (CH) implementation verification review (IVR) report for the New Brunswick Laboratory (NBL), which addressed vault and vault work room safety basis controls and was completed in April 2012. Independent Activity Report, New Brunswick Laboratory - July 2012 More Documents & Publications Independent Activity Report, Argonne National Laboratory - July 2012 Independent Activity Report, New Brunswick Laboratory - November 2011

436

Independent Oversight Review, Oak Ridge Office of Environmental Management  

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

Independent Oversight Review, Oak Ridge Office of Environmental Independent Oversight Review, Oak Ridge Office of Environmental Management - February 2012 Independent Oversight Review, Oak Ridge Office of Environmental Management - February 2012 February 2012 Review of the Implementation Verification Review Processes at the Oak Ridge Office of Environmental Management for Building 3019 This report documents the independent review of implementation verification review (IVR) processes at the Oak Ridge Office of Environmental Management (ORO-EM) conducted by the Office of Enforcement and Oversight (Independent Oversight) within the Office of Health, Safety and Security (HSS). The review involved evaluation of established IVR processes and implementation of the newly revised documented safety analysis (DSA) and technical safety

437

Independent Oversight Review, Waste Treatment and Immobilization Plant -  

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

October 2012 October 2012 Independent Oversight Review, Waste Treatment and Immobilization Plant - October 2012 October 2012 Review of the Hanford Site Waste Treatment and Immobilization Plant Construction Quality The U. S. Department of Energy (DOE) Office of Enforcement and Oversight (Independent Oversight), within the Office of Health, Safety and Security, conducted an independent review of selected aspects of construction quality at the Hanford Site Waste Treatment and Immobilization Plant (WTP). The review, which was performed August 6-10, 2012, was the latest in a series of ongoing quarterly assessments of construction quality performed by Independent Oversight at the WTP construction site. Independent Oversight Review, Waste Treatment and Immobilization Plant -

438

Independent Oversight Review, Waste Treatment and Immobilization Plant -  

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

March 2013 March 2013 Independent Oversight Review, Waste Treatment and Immobilization Plant - March 2013 March 2013 Review of the Hanford Site Waste Treatment and Immobilization Plant Construction Quality The U.S. Department of Energy (DOE) Office of Enforcement and Oversight (Independent Oversight), within the Office of Health, Safety and Security, conducted an independent review of selected aspects of construction quality at the Hanford Site Waste Treatment and Immobilization Plant (WTP). The review, which was performed November 26-30, 2012, was the latest in a series of ongoing quarterly assessments of construction quality performed by Independent Oversight at the WTP construction site. Independent Oversight Review, Waste Treatment and Immobilization Plant - March 2013

439

Independent Activity Report, Savannah River Operation - June 2010 |  

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

Savannah River Operation - June 2010 Savannah River Operation - June 2010 Independent Activity Report, Savannah River Operation - June 2010 June 2010 Savannah River Operations Office Self-Assessment of the Technical Qualification Program The U.S. Department of Energy (DOE), Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), participated in the DOE Savannah River Operations Office (DOE-SR) self-assessment of the Technical Qualification Program (TQP). Independent Activity Report, Savannah River Operation - June 2010 More Documents & Publications Independent Oversight Review, Savannah River Operations Office - July 2013 Independent Activity Report, Savannah River Remediation - July 2010 2011 Annual Workforce Analysis and Staffing Plan Report - Savannah River

440

Federal Energy Management Program: Energy Independence and Security Act,  

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

Energy Energy Independence and Security Act, Section 432: Federal Facility Management and Benchmarking Requirements to someone by E-mail Share Federal Energy Management Program: Energy Independence and Security Act, Section 432: Federal Facility Management and Benchmarking Requirements on Facebook Tweet about Federal Energy Management Program: Energy Independence and Security Act, Section 432: Federal Facility Management and Benchmarking Requirements on Twitter Bookmark Federal Energy Management Program: Energy Independence and Security Act, Section 432: Federal Facility Management and Benchmarking Requirements on Google Bookmark Federal Energy Management Program: Energy Independence and Security Act, Section 432: Federal Facility Management and Benchmarking Requirements on Delicious

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441

Independent Activity Report, Richland Operations Office - June 2011 |  

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

June 2011 June 2011 Independent Activity Report, Richland Operations Office - June 2011 June 2011 Hanford Cold Vacuum Drying Facility, Multi-Canister Overpack, Operational Proficiency Demonstration [HIAR-RL-2011-06-22] The U.S. Department of Energy's (DOE) Office of Enforcement and Oversight, within the Office of Health, Safety and Security (HSS), performed an operational awareness review of the Cold Vacuum Drying Facility, Multi-Canister Overpack, Operational Proficiency Demonstration. Independent Activity Report, Richland Operations Office - June 2011 More Documents & Publications Independent Oversight Review, Hanford K Basin and Cold Vacuum Drying Facility - August 2012 Independent Activity Report, Richland Operations Office - January 2011 Independent Activity Report, Richland Operations Office - June 2011

442

Quantum Calisthenics: Gaussians, The Path Integral and Guided Numerical Approximations  

SciTech Connect

It is apparent to anyone who thinks about it that, to a large degree, the basic concepts of Newtonian physics are quite intuitive, but quantum mechanics is not. My purpose in this talk is to introduce you to a new, much more intuitive way to understand how quantum mechanics works. I begin with an incredibly easy way to derive the time evolution of a Gaussian wave-packet for the case free and harmonic motion without any need to know the eigenstates of the Hamiltonian. This discussion is completely analytic and I will later use it to relate the solution for the behavior of the Gaussian packet to the Feynman path-integral and stationary phase approximation. It will be clear that using the information about the evolution of the Gaussian in this way goes far beyond what the stationary phase approximation tells us. Next, I introduce the concept of the bucket brigade approach to dealing with problems that cannot be handled totally analytically. This approach combines the intuition obtained in the initial discussion, as well as the intuition obtained from the path-integral, with simple numerical tools. My goal is to show that, for any specific process, there is a simple Hilbert space interpretation of the stationary phase approximation. I will then argue that, from the point of view of numerical approximations, the trajectory obtained from my generalization of the stationary phase approximation specifies that subspace of the full Hilbert space that is needed to compute the time evolution of the particular state under the full Hamiltonian. The prescription I will give is totally non-perturbative and we will see, by the grace of Maple animations computed for the case of the anharmonic oscillator Hamiltonian, that this approach allows surprisingly accurate computations to be performed with very little work. I think of this approach to the path-integral as defining what I call a guided numerical approximation scheme. After the discussion of the anharmonic oscillator I will turn to tunneling problems and show that the instanton can also be though of in the same way. I will do this for the classic problem of a double well potential in the extreme limit when the splitting between the two lowest levels is extremely small and the tunneling rate from one well to another is also very small.

Weinstein, Marvin; /SLAC

2009-02-12T23:59:59.000Z

443

Independent Activity Report, Richland Operations Office - June 2011 |  

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

Independent Activity Report, Richland Operations Office - June 2011 Independent Activity Report, Richland Operations Office - June 2011 Independent Activity Report, Richland Operations Office - June 2011 June 2011 Hanford Sludge Treatment Project Review [HIAR-RL-2011-06-17] The U.S. Department of Energy's (DOE) Office of Enforcement and Oversight, within the Office of Health, Safety and Security (HSS), performed operational awareness reviews of the Sludge Treatment Project (STP), Engineered Container Retrieval and Transfer System (ECRTS) during site visits. Independent Activity Report, Richland Operations Office - June 2011 More Documents & Publications Independent Activity Report, Richland Operations Office - April 2011 Independent Activity Report, Hanford Sludge Treatment Project - February 2012 Independent Activity Report, Richland Operations Office - August 2011

444

Independent Activity Report, Hanford - May 2010 | Department of Energy  

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

Independent Activity Report, Hanford - May 2010 Independent Activity Report, Hanford - May 2010 Independent Activity Report, Hanford - May 2010 May 2010 Hanford Waste Encapsulation Storage Facility Meetings The U.S. Department of Energy Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), conducted various meetings with Department of Energy, Richland Operations Office (DOE-RL) managers/staff responsible for WESF during the period May 17-19, 2010. The purpose of the visit was to ascertain ways in which HSS would be able to carry out its independent oversight responsibilities with respect to WESF in a method that encourages collaboration with DOE-RL. Independent Activity Report, Hanford - May 2010 More Documents & Publications Independent Activity Report, Hanford - May 2010

445

Independent Oversight, Nevada National Security Site - March 2012 |  

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

Independent Oversight, Nevada National Security Site - March 2012 Independent Oversight, Nevada National Security Site - March 2012 Independent Oversight, Nevada National Security Site - March 2012 March 2012 Review of the Nevada National Security Site Implementation Verification Review Processes This report documents the independent review of implementation verification review (IVR) processes at the Nevada National Security Site (NNSS) conducted by the Office of Enforcement and Oversight (Independent Oversight), which is within the Office of Health, Safety and Security (HSS). The review was performed by the HSS Office of Safety and Emergency Management Evaluations from February 6 to 15, 2012. Independent Oversight, Nevada National Security Site - March 2012 More Documents & Publications Independent Oversight Review, Y-12 National Security Complex - June 2012

446

projects are valued at approximately $67 million (including $15 million  

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

projects are valued at approximately $67 million (including $15 million projects are valued at approximately $67 million (including $15 million in non-Federal cost sharing) over four years. The overall goal of the research is to develop carbon dioxide (CO 2 ) capture and separation technologies that can achieve at least 90 percent CO 2 removal at no more than a 35 percent increase in the cost of electricity. The projects, managed by FE's National Energy Technology Laboratory (NETL), include: (1) Linde, LLC, which will use a post-combustion capture technology incorporating BASF's novel amine-based process at a 1-megawatt electric (MWe) equivalent slipstream pilot plant at the National Carbon Capture Center (NCCC) (DOE contribution: $15 million); (2) Neumann Systems Group, Inc., which will design, construct, and test a patented NeuStreamTM absorber at the Colorado

447

A Multithreaded Algorithm for Network Alignment Via Approximate Matching  

SciTech Connect

Network alignment is an optimization problem to find the best one-to-one map between the vertices of a pair of graphs that overlaps in as many edges as possible. It is a relaxation of the graph isomorphism problem and is closely related to the subgraph isomorphism problem. The best current approaches are entirely heuristic, and are iterative in nature. They generate real-valued heuristic approximations that must be rounded to find integer solutions. This rounding requires solving a bipartite maximum weight matching problem at each step in order to avoid missing high quality solutions. We investigate substituting a parallel, half-approximation for maximum weight matching instead of an exact computation. Our experiments show that the resulting difference in solution quality is negligible. We demonstrate almost a 20-fold speedup using 40 threads on an 8 processor Intel Xeon E7-8870 system (from 10 minutes to 36 seconds).

Khan, Arif; Gleich, David F.; Pothen, Alex; Halappanavar, Mahantesh

2012-11-16T23:59:59.000Z

448

Boussinesq approximation of the Cahn-Hilliard-Navier-Stokes equations  

E-Print Network (OSTI)

We study the interactions between the thermodynamic transition and hydrodynamic flows which would characterise a thermo- and hydro-dynamic evolution of a binary mixture in a dissolution/nucleation process. The primary attention is given to the slow dissolution dynamics. The Cahn-Hilliard approach is used to model the behaviour of evolving and diffusing interfaces. An important peculiarity of the full Cahn-Hilliard-Navier-Stokes equations is the use of the full continuity equation required even for a binary mixture of incompressible liquids, firstly, due to dependence of mixture density on concentration and, secondly, due to strong concentration gradients at liquids' interfaces. Using the multiple-scale method we separate the physical processes occurring on different time scales and, ultimately, provide a strict derivation of the Boussinesq approximation for the Cahn-Hilliard-Navier-Stokes equations. This approximation forms a universal theoretical model that can be further employed for a thermo/hydro-dynamic ...

Vorobev, Anatoliy

2010-01-01T23:59:59.000Z

449

A family of algorithms for approximate Bayesian inference  

E-Print Network (OSTI)

One of the major obstacles to using Bayesian methods for pattern recognition has been its computational expense. This thesis presents an approximation technique that can perform Bayesian inference faster and more accurately than previously possible. This method, "Expectation Propagation," unifies and generalizes two previous techniques: assumeddensity filtering, an extension of the Kalman filter, and loopy belief propagation, an extension of belief propagation in Bayesian networks. The unification shows how both of these algorithms can be viewed as approximating the true posterior distribution with a simpler distribution, which is close in the sense of KL-divergence. Expectation Propagation exploits the best of both algorithms: the generality of assumed-density filtering and the accuracy of loopy belief propagation. Loopy belief propagation, because it propagates exact belief states, is useful for limited types of belief networks, such as purely discrete networks. Expectation Propagati...

Rosalind Picard; Thomas P. Minka; Thomas P Minka

2001-01-01T23:59:59.000Z

450

Integrated AMP-PAN, TRUEX, and SREX Flowsheet Test to Remove Cesium, Surrogate Actinide Elements, and Strontium from INEEL Tank Waste Using Sorbent Columns and Centrifugal Contactors  

Science Conference Proceedings (OSTI)

Three unit operations for the removal of selected fission products, actinides, and RCRA metals (mercury and lead) have been successfully integrated and tested for extended run times with simulated INEEL acidic tank waste. The unit operations were ion exchange for Cs removal, followed by TRUEX solvent extraction for Eu (actinide surrogate), Hg, and Re (Tc surrogate) removal, and subsequent SREX solvent extraction for Sr and Pb removal. Approximately 45 L of simulated INTEC tank waste was first processed through three ion exchange columns in series for selective Cs removal. The columns were packed with a composite ammonium molybdophosphate-polyacrylonitrile (AMP-PAN) sorbent. The experimental breakthrough data were in excellent agreement with modeling predictions based on data obtained with much smaller columns. The third column (220 cm3) was used for polishing and Cs removal after breakthrough of the up-stream columns. The Cs removal was >99.83% in the ion exchange system without interference from other species. Most of the effluent from the ion exchange (IX) system was immediately processed through a TRUEX solvent extraction flowsheet to remove europium (americium surrogate), mercury and rhenium (technetium surrogate) from the simulated waste. The TRUEX flowsheet test was performed utilizing 23 stages of 3.3-cm centrifugal contactors. Greater than 99.999% of the Eu, 96.3% of the Hg, and 56% of the Re were extracted from the simulated feed and recovered in the strip and wash streams. Over the course of the test, there was no detectable build-up of any components in the TRUEX solvent. The raffinate from the TRUEX test was stored and subsequently processed several weeks later through a SREX solvent extraction flowsheet to remove strontium, lead, and Re (Tc surrogate) from the simulated waste. The SREX flowsheet test was performed using the same centrifugal contactors used in the TRUEX test after reconfiguration and the addition of three stages. Approximately 99.9% of the Sr, >99.89% of the Pb, and >96.4% of the Re were extracted from the aqueous feed to the SREX flowsheet and recovered in the strip and wash sections. Approximately 41 L of simulated tank waste (based on the volume processed through the TRUEX flowsheet) was processed through the integrated flowsheet and resulted in 175 L of liquid high activity waste (HAW) and 219.6 L of liquid low activity waste (LAW). The HAW fraction would be evaporated, dried and subsequently vitrified for final disposal. Based on current baseline assumptions, including a maximum phosphate loading of 2.5 wt. % in the HAW glass, the flowsheet tested would result in the production 0.195 kg of glass per L of tank waste processed. The LAW fraction would be solidified (via evaporation and denitration) and subsequently grouted. The current baseline assumptions for grouting the LAW stream indicate 0.37 kg of grout would be produced per L of tank waste treated. Under these assumptions, treating the current inventory of ~5E+6 L (5,000 m3) of tank waste would result in 375 m3 of HAW glass and 1,135 m3 of LAW Class A performance grout. The HAW glass volume could be significantly decreased by suitable TRUEX flowsheet modifications.

Herbst, Ronald Scott; Law, Jack Douglas; Todd, Terry Allen; Wood, D. J.; Garn, Troy Gerry; Wade, Earlen Lawrence

2000-02-01T23:59:59.000Z

451

Beyond the Quantum Adiabatic Approximation: Adiabatic Perturbation Theory  

E-Print Network (OSTI)

We introduce a perturbative approach to solving the time dependent Schroedinger equation, named adiabatic perturbation theory (APT), whose zeroth order term is the quantum adiabatic approximation. The small parameter in the power series expansion of the time-dependent wave function is the inverse of the time it takes to drive the system's Hamiltonian from the initial to its final form. We review other standard perturbative and non-perturbative ways of going beyond the adiabatic approximation, extending and finding exact relations among them, and also compare the efficiency of those methods against the APT. Most importantly, we determine APT corrections to the Berry phase by use of the Aharonov-Anandan geometric phase. We then solve several time dependent problems allowing us to illustrate that the APT is the only perturbative method that gives the right corrections to the adiabatic approximation. Finally, we propose an experiment to measure the APT corrections to the Berry phase and show, for a particular spin-1/2 problem, that to first order in APT the geometric phase should be two and a half times the (adiabatic) Berry phase.

Gustavo Rigolin; Gerardo Ortiz; Victor Hugo Ponce

2008-07-09T23:59:59.000Z

452

Local Linear Convergence of Approximate Projections onto Regularized Sets  

E-Print Network (OSTI)

The numerical properties of algorithms for finding the intersection of sets depend to some extent on the regularity of the sets, but even more importantly on the regularity of the intersection. The alternating projection algorithm of von Neumann has been shown to converge locally at a linear rate dependent on the regularity modulus of the intersection. In many applications, however, the sets in question come from inexact measurements that are matched to idealized models. It is unlikely that any such problems in applications will enjoy metrically regular intersection, let alone set intersection. We explore a regularization strategy that generates an intersection with the desired regularity properties. The regularization, however, can lead to a significant increase in computational complexity. In a further refinement, we investigate and prove linear convergence of an approximate alternating projection algorithm. The analysis provides a regularization strategy that fits naturally with many ill-posed inverse problems, and a mathematically sound stopping criterion for extrapolated, approximate algorithms. The theory is demonstrated on the phase retrieval problem with experimental data. The conventional early termination applied in practice to unregularized, consistent problems in diffraction imaging can be justified fully in the framework of this analysis providing, for the first time, proof of convergence of alternating approximate projections for finite dimensional, consistent phase retrieval problems.

D. Russell Luke

2011-08-10T23:59:59.000Z

453

Approximate Controllability for Linear Stochastic Differential Equations in Infinite Dimensions  

SciTech Connect

The objective of the paper is to investigate the approximate controllability property of a linear stochastic control system with values in a separable real Hilbert space. In a first step we prove the existence and uniqueness for the solution of the dual linear backward stochastic differential equation. This equation has the particularity that in addition to an unbounded operator acting on the Y-component of the solution there is still another one acting on the Z-component. With the help of this dual equation we then deduce the duality between approximate controllability and observability. Finally, under the assumption that the unbounded operator acting on the state process of the forward equation is an infinitesimal generator of an exponentially stable semigroup, we show that the generalized Hautus test provides a necessary condition for the approximate controllability. The paper generalizes former results by Buckdahn, Quincampoix and Tessitore (Stochastic Partial Differential Equations and Applications, Series of Lecture Notes in Pure and Appl. Math., vol. 245, pp. 253-260, Chapman and Hall, London, 2006) and Goreac (Applied Analysis and Differential Equations, pp. 153-164, World Scientific, Singapore, 2007) from the finite dimensional to the infinite dimensional case.

Goreac, D. [Universite Paris-Est, LAMA, UMR 8050 (France)], E-mail: dan.goreac@univ-mlv.fr

2009-08-15T23:59:59.000Z

454

One ARM, Two Columns and a Whole Lot of Aerosols | Department of Energy  

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

ARM, Two Columns and a Whole Lot of Aerosols ARM, Two Columns and a Whole Lot of Aerosols One ARM, Two Columns and a Whole Lot of Aerosols July 25, 2012 - 5:49pm Addthis This observatory is part of an air particles research initiative at Cape Cod National Seashore in Massachusetts, and includes dozens of sophisticated instruments that take continuous ground-based measurements of clouds, aerosols, and other atmospheric properties. | Photo courtesy of the ARM Climate Research Facility. This observatory is part of an air particles research initiative at Cape Cod National Seashore in Massachusetts, and includes dozens of sophisticated instruments that take continuous ground-based measurements of clouds, aerosols, and other atmospheric properties. | Photo courtesy of the ARM Climate Research Facility.

455

An Experimental Verification, with Krypton, of the Theory of the Thermal Diffusion Column for Multicomponent Systems  

SciTech Connect

The extended form of the Jones and Furry theory, which describes the behavior of a multicomponent heavy isotopic gas in a Clusius-Dickel thermal diffusion column, is tested. Experimental and theoretical values of the thermal diffusion column transport equation coefficients Hsub{ik},Ksub{c}, and Ksub{d}, are determined for krypton, a heavy isotopic gas with six isotopes. The experiments are carried out in a column of the hotwire type, at three wire temperatures: Tsub{H}=350 degrees C, 500 degrees C and 800 degrees C. Good agreement is found between the theoretical and experimental values of the coefficients. Seven of nine of the experimentally determined values of the coefficients agree within +- 10% with the corressponding theoretical values. The remaining two experimental values agree within +- 20% with the corresponding theoretical values.

Roos, W. J.

1967-12-01T23:59:59.000Z

456

First Commissioning of a Cryogenic Distillation Column for Low Radioactivity Underground Argon  

E-Print Network (OSTI)

We report on the performance and commissioning of a cryogenic distillation column for low radioactivity underground argon at Fermi National Accelerator Laboratory. The distillation column is designed to accept a mixture of argon, helium, and nitrogen and return pure argon with a nitrogen contamination less than 10 ppm. In the first commissioning, we were able to run the distillation column in a continuous mode and produce argon that is 99.9% pure. After running in a batch mode, the argon purity was increased to 99.95%, with 500 ppm of nitrogen remaining. The efficiency of collecting the argon from the gas mixture was between 70% and 81%, at an argon production rate of 0.84-0.98 kg/day.

H. O. Back; T. Alexander; A. Alton; C. Condon; E. de Haas; C. Galbiati; A. Goretti; T. Hohmann; An. Ianni; C. Kendziora; B. Loer; D. Montanari; P. Mosteiro; S. Pordes

2012-04-26T23:59:59.000Z

457

FY05 Targeted Technology Transfer to US Independents  

Science Conference Proceedings (OSTI)

Petroleum Technology Transfer Council (PTTC) was established by domestic crude oil and natural gas producers in 1994 as a national not-for-profit organization to address the increasingly urgent need to improve the technology-transfer process in the U.S. upstream petroleum industry. PTTC's technology-transfer programs enhance U.S. national security. PTTC administers the only nation-wide, comprehensive program dedicated to maximizing America's supplies of domestic oil and gas. PTTC conducts grassroots programs through 10 Regional Lead Organizations (RLOs) and two satellite offices, leveraging their preexisting connections with industry. This organizational structure helps bring researchers and academia to the table. Nationally and regionally, volunteers within a National Board and Regional Producer Advisory Groups guide efforts. The National Board meets three times per year, an important function being approving the annual plans and budgets developed by the regions and Headquarters (HQ). Between Board meetings, an active Management and Budget Committee guide HQ activity. PTTC itself undergoes a thorough financial audit each year. The PTTC's HQ staff plans and manages all aspects of the PTTC program, conducts nation-wide technology-transfer activities, and implements a comprehensive communications program. Networking, involvement in technical activities, and an active exhibit schedule are increasing PTTC's sphere of influence with both producers and the oilfield service sector. Circulation for ''PTTC Network News'', the quarterly newsletter, has risen to nearly 17,500. About 7,500 people receive an email Technology Alert on an approximate three-week frequency. Case studies in the ''Petroleum Technology Digest in World Oil'' appear monthly, as do ''Tech Connections'' columns in ''The American Oil and Gas Reporter''. As part of its oversight responsibility for the regions, the PTTC from the start has captured and reported data that document the myriad ways its programs impact industry. Of 119 workshops in FY05 where repeat attendance was reported, 59 percent of attendees on average had attended a PTTC event previously, indicating that a majority felt they were receiving enough value to come back. It also is encouraging that, after 11 years, PTTC events continue to attract new people. The form used at workshops to get participants feedback asks for a ''yes'' or ''no'' response to the question: ''Have you used any new technologies based on knowledge gained through PTTC?'' With data now available from 611 workshops, 41 percent of respondents said, ''yes'', confirming that people are applying the information they receive at PTTC workshops. PTTC in FY04 asked RLO directors, oilfield service companies and producers in 11 areas with significant technological barriers to adding new reserves to estimate the ''PTTC Impact Factor''--that is, the percentage of the total reserves added in their areas that logically could be attributed to PTTC's efforts. Of the estimated 1,266 million barrels of oil equivalent (BOE) added in the 11 areas, participants estimated that roughly 88 million BOE had been added as a result of PTTC's techtransfer efforts. PTTC's 10 regions are the primary delivery mechanism for technology transfer. Attendance at PTTC regional activities set a record in FY05, with 8,900 individuals attending 154 workshops, lunch-and-learn events, or student training and internships. When appropriate, regional workshops incorporate R&D findings from DOE-funded projects. This year HQ began a ''Microhole Technology Integration'' Initiative with DOE to more clearly present their microhole program to producers. Often events are held cooperatively with other national organizations, regional producer associations and professional society groups. This practice leverages outreach and engenders future cooperation. Of the more than 61,000 individuals PTTC has attracted to its events since its inception, more than 15,000 have attended in the past two years. Eight-eight percent of PTTC event attendees during FY05 were from industry. The numb

Donald F. Duttlinger; E. Lance Cole

2005-11-01T23:59:59.000Z

458

MSN YYYYMM Value Column Order Description Unit FFPRBUS Total Fossil Fuels Production Quadrillion Btu  

Gasoline and Diesel Fuel Update (EIA)

MSN YYYYMM Value Column Order Description Unit MSN YYYYMM Value Column Order Description Unit FFPRBUS Total Fossil Fuels Production Quadrillion Btu FFPRBUS Total Fossil Fuels Production Quadrillion Btu FFPRBUS Total Fossil Fuels Production Quadrillion Btu FFPRBUS Total Fossil Fuels Production Quadrillion Btu FFPRBUS Total Fossil Fuels Production Quadrillion Btu FFPRBUS Total Fossil Fuels Production Quadrillion Btu FFPRBUS Total Fossil Fuels Production Quadrillion Btu FFPRBUS Total Fossil Fuels Production Quadrillion Btu FFPRBUS Total Fossil Fuels Production Quadrillion Btu FFPRBUS Total Fossil Fuels Production Quadrillion Btu FFPRBUS Total Fossil Fuels Production Quadrillion Btu FFPRBUS Total Fossil Fuels Production Quadrillion Btu FFPRBUS Total Fossil Fuels Production Quadrillion Btu FFPRBUS Total Fossil Fuels Production Quadrillion Btu

459

Anthropogenic NO2 in the Atmosphere: Estimates of the Column Content and Radiative Forcing  

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

Anthropogenic NO Anthropogenic NO 2 in the Atmosphere: Estimates of the Column Content and Radiative Forcing A. N. Rublev Institution of Molecular Physics Russian Research Center Kurchatov Institute Moscow, Russia N Chubarova Meteorological Observatory of Moscow State University Moscow, Russia G. Gorchakov Obukhov Institute of Atmospheric Physics Russian Academy of Sciences Moscow, Russia Introduction The work summarizes the different methodical aspects, firstly, the use of atmosphere optical depths presented in Aerosol Robotic Network (AERONET) data for NO 2 column retrievals, and, secondly, its radiative forcing calculated as difference between integral solar fluxes absorbed in the atmosphere with and without NO 2 under given air mass or the sun zenith angle.

460

Gas generation and bubble formation model for crystalline silicotitanate ion exchange columns  

SciTech Connect

The authors developed a transient model to describe the process of gas generation due to radiolysis and bubble formation in crystalline silicotitanate (CST) ion exchange (IX) columns using the Aspen Custom Modeler (ACM) software package. The model calculates gas concentrations and onset of bubble formation for large CST IX columns. The calculations include cesium loading as a function of time, gas generation as a function of cesium loading, and bubble formation as a function of gas solubility. This report summarizes the model development and predictions.

Hang, T.

2000-07-19T23:59:59.000Z

Note: This page contains sample records for the topic "independent column approximation" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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461

Advanced quasi-steady state approximation for chemical kinetics  

E-Print Network (OSTI)

Computational feasibility of turbulent reacting flows hinges on the reduction of large chemical kinetics systems to smaller more manageable reaction sets. Recently, several sophisticated reduction techniques have been developed but they continue to be computationally prohibitive for practical three-dimensional unsteady computations. For such applications, the classical quasi-steady state assumption (QSSA), despite serious shortcomings, continues to be popular due to its conceptual clarity and computational simplicity. Starting from invariant manifold description, we develop an advanced quasi-steady state assumption which (i) is independent of the choice of the retained (slow) species; (ii) possesses much improved physical and mathematical characteristics; and (iii) can be specialized for any objective function.

Girimaji, Sharath

2011-01-01T23:59:59.000Z

462

Two-Phase Hydraulics State Identification using linear and non-linear time series analysis: Distillation Column Flooding Sensor.  

E-Print Network (OSTI)

??A novel sensor to detect and predict hydraulic flooding in the distillation column was developed in this research. High speed (1000 Hz) differential pressure data (more)

Patel, Alok Maheshbhai

2007-01-01T23:59:59.000Z

463

Energy Independence and Security Act, Section 432: Federal Facility  

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

Facility Reporting » Energy Independence and Facility Reporting » Energy Independence and Security Act, Section 432: Federal Facility Management and Benchmarking Requirements Energy Independence and Security Act, Section 432: Federal Facility Management and Benchmarking Requirements October 8, 2013 - 2:02pm Addthis Section 432 of the Energy Independence and Security Act of 2007 requires agencies to report Federal facility energy and water use. Section 432 of the Energy Independence and Security Act of 2007 requires agencies to report Federal facility energy and water use. The Federal Energy Management Program (FEMP) is responsible for tracking Federal agency progress toward meeting Section 432 of the Energy Independence and Security Act (EISA) of 2007 for Federal facility energy and water management and benchmarking.

464

Independent Oversight Review, DOE Nuclear Facilities - May 2013 |  

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

Review, DOE Nuclear Facilities - May 2013 Review, DOE Nuclear Facilities - May 2013 Independent Oversight Review, DOE Nuclear Facilities - May 2013 May 2013 Lessons Learned from Targeted Reviews of Implementation Verification Review Processes at Department of Energy Nuclear Facilities This report summarizes and analyzes the results of independent reviews of IVR and associated processes at eight DOE sites conducted by Independent Oversight from August 2011 to September 2012. The purpose of the Independent Oversight review was to evaluate the processes and methods used for verifying the implementation of safety basis hazard controls and periodically re-verifying that the controls remain in place. Independent Oversight Review, DOE Nuclear Facilities - May 2013 More Documents & Publications Independent Oversight Review, Hanford Site CH2M Hill Plateau Remediation

465

Resources for an Energy Independence Pledge | Department of Energy  

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

Resources for an Energy Independence Pledge Resources for an Energy Independence Pledge Resources for an Energy Independence Pledge July 12, 2013 - 1:41pm Addthis Maintaining your air conditioner is just one way to fulfill an energy independence pledge this summer. | Photo courtesy of ©iStockphoto/firemanYU Maintaining your air conditioner is just one way to fulfill an energy independence pledge this summer. | Photo courtesy of ©iStockphoto/firemanYU Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy How can I participate? Read up on these ways to save energy this summer and make a pledge for energy independence. The Fourth of July reminds me of hot summer days with the air conditioning on, barbecues with friends, and fireworks - not the most energy efficient

466

Resources for an Energy Independence Pledge | Department of Energy  

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

Resources for an Energy Independence Pledge Resources for an Energy Independence Pledge Resources for an Energy Independence Pledge July 12, 2013 - 1:41pm Addthis Maintaining your air conditioner is just one way to fulfill an energy independence pledge this summer. | Photo courtesy of ©iStockphoto/firemanYU Maintaining your air conditioner is just one way to fulfill an energy independence pledge this summer. | Photo courtesy of ©iStockphoto/firemanYU Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy How can I participate? Read up on these ways to save energy this summer and make a pledge for energy independence. The Fourth of July reminds me of hot summer days with the air conditioning on, barbecues with friends, and fireworks - not the most energy efficient

467

Independent Oversight Review, Idaho National Laboratory - July 2012 |  

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

Independent Oversight Review, Idaho National Laboratory - July 2012 Independent Oversight Review, Idaho National Laboratory - July 2012 Independent Oversight Review, Idaho National Laboratory - July 2012 July 2012 Review of Site Preparedness for Severe Natural Phenomena Events at the Idaho National Laboratory The Office of Enforcement and Oversight (Independent Oversight), within the Office of Health, Safety and Security (HSS), conducted an independent review of the Department of Energy (DOE) Idaho National Laboratory (INL) preparedness for severe natural phenomena events. The HSS Office of Safety and Emergency Management Evaluations performed this review to evaluate the processes for identifying emergency response capabilities and maintaining them in a state of readiness in case of a severe natural phenomena event. Independent Oversight Review, Idaho National Laboratory - July 2012

468

DOE Hydrogen and Fuel Cells Program: Independent Peer Reviews  

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

Hydrogen Production Hydrogen Production Hydrogen Delivery Hydrogen Storage Hydrogen Manufacturing Fuel Cells Applications/Technology Validation Safety Codes and Standards Education Basic Research Systems Analysis Systems Integration Independent Reviews Macro-System Model U.S. Department of Energy Search help Home > Systems Integration > Independent Peer Reviews Printable Version Independent Peer Reviews DOE's Systems Integrator convenes independent technical reviews to gauge progress toward meeting specific technical targets and to provide technical information necessary for key decisions. These independent reviews are important to the program: They provide an unbiased understanding of the status of the program's technical targets based on the input of independent technical experts. This understanding is critical to program decision-making, budget

469

Independent Activity Report, CH2M Hill Plateau Remediation Company -  

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

Independent Activity Report, CH2M Hill Plateau Remediation Company Independent Activity Report, CH2M Hill Plateau Remediation Company - January 2011 Independent Activity Report, CH2M Hill Plateau Remediation Company - January 2011 January 2011 Review of the CH2M Hill Plateau Remediation Company Unreviewed Safety Question Procedure [ARPT-RL-2011-003] The U.S. Department of Energy Office of Independent Oversight, within the Office of Health, Safety and Security, during a site visit from January 10-14, 2011, presented the results of a technical review of the CH2M Hill Plateau Remediation Company (PRC) Unreviewed Safety Question (USQ) Procedure. Independent Activity Report, CH2M Hill Plateau Remediation Company - January 2011 More Documents & Publications CX-009415: Categorical Exclusion Determination Independent Activity Report, Richland Operations Office - January 2011

470

Two Independent Assessments Find the Department of Energy's Yucca Mountain  

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

Two Independent Assessments Find the Department of Energy's Yucca Two Independent Assessments Find the Department of Energy's Yucca Mountain Project is on Track Two Independent Assessments Find the Department of Energy's Yucca Mountain Project is on Track December 13, 2007 - 4:44pm Addthis WASHINGTON, DC - The U.S. Department of Energy (DOE) Director of the Office of Civilian Radioactive Waste Management (OCRWM) today released two independent assessments addressing areas critical to the overall success of the Yucca Mountain repository program. These assessments, which include an independent review of the OCRWM Quality Assurance (QA) Program and an independent review of its engineering processes and procedures, have concluded that the Yucca Mountain Project's current QA and engineering processes and procedures are consistent with standard nuclear industry

471

Independent Oversight Inspection, Pantex Plant - June 2009 | Department of  

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

Independent Oversight Inspection, Pantex Plant - June 2009 Independent Oversight Inspection, Pantex Plant - June 2009 Independent Oversight Inspection, Pantex Plant - June 2009 June 2009 Inspection of Environment, Safety, and Health Programs at the Pantex Plant The U.S. Department of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security, inspected environment, safety, and health (ES&H) programs at the DOE Pantex Plant during March through April 2009. The inspection was performed by the Office of Independent Oversight's Office of Environment, Safety and Health Evaluations. Throughout this Independent Oversight inspection, B&W Pantex management, supervisors, and workers demonstrated their commitment to performing work safely, and management has shown an understanding of many of the areas

472

Energy Independence and Security Act, Section 432: Federal Facility  

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

Energy Independence and Security Act, Section 432: Federal Facility Energy Independence and Security Act, Section 432: Federal Facility Management and Benchmarking Requirements Energy Independence and Security Act, Section 432: Federal Facility Management and Benchmarking Requirements October 8, 2013 - 2:02pm Addthis Section 432 of the Energy Independence and Security Act of 2007 requires agencies to report Federal facility energy and water use. Section 432 of the Energy Independence and Security Act of 2007 requires agencies to report Federal facility energy and water use. The Federal Energy Management Program (FEMP) is responsible for tracking Federal agency progress toward meeting Section 432 of the Energy Independence and Security Act (EISA) of 2007 for Federal facility energy and water management and benchmarking. The EISA 432 Compliance Tracking System (EISA 432 CTS) tracks agency

473

Independent Activity Report, Savannah River Site - July 2010 | Department  

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

Independent Activity Report, Savannah River Site - July 2010 Independent Activity Report, Savannah River Site - July 2010 Independent Activity Report, Savannah River Site - July 2010 July 2010 Savannah River Site Salt Waste Processing Facility Construction Project Review A Department of Energy Construction Project Review (CPR) of the Salt Waste Processing Facility (SWPF) project was conducted on July 19-22, 2010, at the request of the Principal Deputy Secretary, Office of Environmental Management (EM-2). The purpose of the review was to assess the cost, schedule, and technical progress against the approved Performance Baseline. Independent Activity Report, Savannah River Site - July 2010 More Documents & Publications Independent Activity Report, Savannah River Site - September 2010 Independent Activity Report, Savannah River Site - May 2010

474

Two Independent Assessments Find the Department of Energy's Yucca Mountain  

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

Independent Assessments Find the Department of Energy's Yucca Independent Assessments Find the Department of Energy's Yucca Mountain Project is on Track Two Independent Assessments Find the Department of Energy's Yucca Mountain Project is on Track December 13, 2007 - 4:44pm Addthis WASHINGTON, DC - The U.S. Department of Energy (DOE) Director of the Office of Civilian Radioactive Waste Management (OCRWM) today released two independent assessments addressing areas critical to the overall success of the Yucca Mountain repository program. These assessments, which include an independent review of the OCRWM Quality Assurance (QA) Program and an independent review of its engineering processes and procedures, have concluded that the Yucca Mountain Project's current QA and engineering processes and procedures are consistent with standard nuclear industry

475

Independent Activity Report, Pantex Site - March 2011 | Department of  

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

March 2011 March 2011 Independent Activity Report, Pantex Site - March 2011 March 2011 CDNS Biennial Review of the Pantex Site [ARPT-PTX-2011-001] The U.S. Department of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), visited the Department of Energy Pantex Site Office (PXSO) and the Pantex Plant in Amarillo, Texas, from February 28 - March 8, 2011. The purpose of the visit was to participate in the biennial review of PXSO by the Office of the Chief of Defense Nuclear Safety (CDNS). Independent Activity Report, Pantex Site - March 2011 More Documents & Publications Independent Activity Report, Pantex Site - January 2011 Independent Activity Report, Pantex Plant - October 2011 Independent Activity Report, Pantex - December

476

Analytical Approximation for 2-D Nonlinear Periodic Deep Water Waves  

E-Print Network (OSTI)

A recently developed method has been extended to a nonlocal equation arising in steady water wave propagation in two dimensions. We obtain analyic approximation of steady water wave solution in two dimensions with rigorous error bounds for a set of parameter values that correspond to heights slightly smaller than the critical. The wave shapes are shown to be analytic. The method presented in quite general and does not assume smallness of wave height or steepness and can be readily extended to other interfacial problems involving Laplace's equation.

Saleh Tanveer

2013-09-20T23:59:59.000Z

477

Approximating RR Lyrae light curves using cubic polynomials  

E-Print Network (OSTI)

In this paper, we use cubic polynomials to approximate RR Lyrae light curves and apply the method to HST data of RR Lyraes in the halo of M31. We compare our method to the standard method of Fourier decomposition and find that the method of cubic polynomials eliminates virtually all ringing effects and does so with significantly fewer parameters than the Fourier technique. Further, for RRc stars the parameters in the fit are all physical. Our study also reveals a number of additional periodicites in this data not found previously: we find 23 RRc stars, 29 RRab stars and 3 multiperiodic stars.

Reyner, Steven; Ngeow, C; Morgan, C

2010-01-01T23:59:59.000Z

478

Independent Oversight Review, Hanford Tank Farms - December 2012 |  

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

December 2012 December 2012 Independent Oversight Review, Hanford Tank Farms - December 2012 December 2012 Review of the Hanford Tank Farms Radiological Controls Activity-Level Implementation This report documents an independent review by the Office of Enforcement and Oversight (Independent Oversight) within the Office of Health, Safety and Security (HSS) of radiological protection program (RPP) activity-level implementation at the Hanford Tank Farms. The review was performed by the HSS Office of Safety and Emergency Management Evaluations. The purpose of this Independent Oversight targeted review effort is to evaluate the flowdown of occupational radiation protection requirements, as expressed in facility RPPs, to work planning, control, and execution processes, such as

479

Independent Specific Administrative Controls Review, Office of River  

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

Office of Office of River Protection - December 2010 Independent Specific Administrative Controls Review, Office of River Protection - December 2010 December 2010 Specific Administrative Controls Review with the Office of Environmental Management at the Office of River Protection The U.S. Department of Energy Office of Independent Oversight, within the Office of Health, Safety and Security, participated in an Office of Environmental Management Office of Standards and Quality Assurance, EM-23, review of Specific Administrative Controls (SAC). The EM-23 review included selected Office of River Protection programs at the Hanford Site. Independent Specific Administrative Controls Review, Office of River Protection - December 2010 More Documents & Publications Independent Specific Administrative Controls Review, Richland Operations

480

Independent Oversight Review, Savannah River Site - September 2011 |  

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

Savannah River Site - September 2011 Savannah River Site - September 2011 Independent Oversight Review, Savannah River Site - September 2011 September 2011 Review of the Implementation Verification Review Processes at the Savannah River Site Environmental Management Nuclear Facilities The Office of Enforcement and Oversight (Independent Oversight) within the Office of Health, Safety and Security (HSS), conducted an independent review of the Implementation Verification Review (IVR) Processes at Savannah River Site Environmental Management Nuclear Facilities. The overall objective of the Independent Oversight IVR review process includes verification that contractors and site offices have developed and implemented appropriate methods for performing IVRs (including direction for scheduling and conducting IVR activities) and measurement of the

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


481

Independent Oversight Inspection, Savannah River Site - February 2006 |  

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

February February 2006 Independent Oversight Inspection, Savannah River Site - February 2006 February 2006 Inspection of Emergency Management at the Savannah River Site The U.S. Department of Energy (DOE) Office of Independent Oversight conducted an inspection of environment, safety, and health and emergency management programs at the DOE Savannah River Site (SRS) in January and February 2006. The inspection was performed as a joint effort by Independent Oversight's Office of Environment, Safety and Health Evaluations and Office of Emergency Management Oversight. This 2006 Independent Oversight inspection found that nearly all of the WSRC weaknesses from the 2004 inspection have been addressed. Actions included implementing a comprehensive hazardous material screening process,

482

Independent Oversight Review, Nevada National Security - May 2013 |  

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

National Security - May 2013 National Security - May 2013 Independent Oversight Review, Nevada National Security - May 2013 May 2013 Review of the Nevada National Security Site Criticality Safety Program Corrective Action Plan Closure The U.S. Department of Energy (DOE) Office of Enforcement and Oversight (Independent Oversight), within the Office of Health, Safety and Security, conducted an independent review of the National Nuclear Security Administration (NNSA) Nevada Field Office (NFO) and National Security Technologies, LLC (NSTec) concurrent assessments to confirm the level of compliance with the closure actions of the NSTec corrective action plan (CAP) for nuclear criticality safety. Independent Oversight Review, Nevada National Security - May 2013 More Documents & Publications

483

Independent Oversight, Nevada National Security Site - March 2012 |  

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

Oversight, Nevada National Security Site - March 2012 Oversight, Nevada National Security Site - March 2012 Independent Oversight, Nevada National Security Site - March 2012 March 2012 Review of the Nevada National Security Site Implementation Verification Review Processes This report documents the independent review of implementation verification review (IVR) processes at the Nevada National Security Site (NNSS) conducted by the Office of Enforcement and Oversight (Independent Oversight), which is within the Office of Health, Safety and Security (HSS). The review was performed by the HSS Office of Safety and Emergency Management Evaluations from February 6 to 15, 2012. Independent Oversight, Nevada National Security Site - March 2012 More Documents & Publications CRAD, Implementation Verification Review - July 20, 2011

484

NETL: 2010 - Independent Peer Reviews of NETL Technology Programs  

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

- Independent Peer Reviews of NETL Technology Programs Advanced Integrated Gasification Combined Cycle (AIGCC) Peer Review Advanced Integrated Gasification Combined Cycle (AIGCC)...

485

Independent Oversight Inspection of Emergency Management at the...  

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

of Energy February 2003 Volume II INDEPENDENT OVERSIGHT INSPECTION OF EMERGENCY MANAGEMENT AT THE SANDIA NATIONAL LABORATORIES - NEW MEXICO Volume II February 2003 i...

486

New York Independent System Operator, Smart Grid RFI: Addressing...  

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

Register, the New York Independent System Operator, Inc. (NYISO) offers the attached white paper entitled Envisioning a Smarter Grid for New York Consumers. New York...

487

Independent Restaurant Employee Job Satisfaction in College Towns.  

E-Print Network (OSTI)

??The current study begins to close a gap in the restaurant industry literature that fails to recognize the independently operated restaurants as a viable resource (more)

Dupnock, Lisa M.

2011-01-01T23:59:59.000Z

488

Fast Local Search for the Maximum Independent Set Problem  

E-Print Network (OSTI)

Jan 29, 2008 ... Fast Local Search for the Maximum Independent Set Problem. Diogo V. Andrade (diogo ***at*** google.com) Mauricio G. C. Resende (mgcr...