U.S. Department of Energy (DOE) - all webpages (Extended Search)
Attendee List Attendee List Last edited: 2016-04-29 11:34:28
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
DOE and DOD Manufacturing Innovation Topics Workshop REGISTRATION LIST David Alman National Energy Technology Laboratory Everett Anderson Proton OnSite Balu Balachandran Argonne ...
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Attendee List Attendee List ERSUG - Attendees John Allen - NERSC Bas Braams - NYU Jack Byers - LLNL Bruce Curtis - NERSC David Feller - PNL Judith Giarrusso - PPPL Brent Gorda - NERSC Bruce Griffing - NERSC Bill Herrmannsfeldt - SLAC Brian Hingerty - ORNL Barry Howard - NERSC Stephen Jardin - PPPL Morris Jette - NERSC Bruce Kelly - NERSC Rick Kendall - PNL Tom Kitchens - DOE Dale Koelling - DOE Jean-Noel Leboeuf - ORNL Steve Louis - NERSC Maureen McCarthy - PNL Michel McCoy - NERSC William
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
COMPLETE LISTING: DISPOSITION AUTHORITIES FROZEN UNDER THE EPIDEMIOLOGICAL MORATORIUM MARCH 2008 Listed below are all the disposition authorities which are under the moratorium on the destruction of health related records as of March 2008. All records scheduled under these authorities at Department of Energy (DOE) headquarters and field sites should be preserved past their normal retention periods unless an headquarters organization or a field site has obtained permission to remove records
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Attendee List Attendee List June 2004 NUG Meeting Participants Name Phone Email Organization Thursday Friday Benjamin A. Allan 925-294-2453 baallan@ca.sandia.gov Sandia National Laboratories here Harsh Anand 510-486-5575 hanand@lbl.gov LBL grid Michael Banda 510-486-2837 mjbanda@lbl.gov LBNL here David Bernholdt 865-574-3147 bernholdtde@ornl.gov ORNL grid Wes Bethel 510-486-7353 ewbethel@lbl.gov LBNL here here Greg Butler 510-486-8691 gbutler@nersc.gov NERSC here Tina Butler 510-495-2379
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Attendee List Attendee List Participants Registered for NUG Meeting, November 9, 2004 Name Phone Email Organization Number Attending Brandon Allgood 831-212-1802 allgood@physics.ucsc.edu UCSC 1 Matthew Andrews 510-872-7747 mnandrews@lbl.gov NERSC 1 Alan Aspuru-Guzik 510-642-2154 alan@aspuru.com UC Berkeley 1 Michael Banda 510-495-2837 mjbanda@lbl.gov LBNL 1 David Bernholdt 865-574-3147 bernholdtde@ornl.gov ORNL 1 Wes Bethel 510-486-7353 ewbethel@lbl.gov LBNL 1 to 3 Andrew Canning 510-495-2962
U.S. Department of Energy (DOE) - all webpages (Extended Search)
List Trails List Trail-specific access information and rules. It is your responsibility to understand the rules of a particular trail. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z Ancho Canyon Trail Closed Ancho Springs Trail Access: Open to the public Length: 1.78 miles Elevation change: 1027 feet Connecting trails:
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Email Lists Email Lists When you get a NERSC user account, an email alias is created for you of the form username@nersc.gov username@nersc.gov is an email alias that will forward mail to your delivery email address. The NERSC Information Management (NIM) accounting interface will display your delivery address under the Contact Info tab (select My Contact Info from the My Stuff pull-down in the NIM main menu). Please keep your contact information in NIM up-to-date. Announcements of interest to
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Attendee List Attendee List Name Phone Email Monday Tuesday Wednesday Joonhee An 510-495-2990 jman@lbl.gov X X X Alan Aspuru-Guzik 510-652-1671 aspuru@okra.cchem.berkeley.edu X Polly Baker 317-278-8150 baker@ncsa.uiuc.edu X John Bell 510-486-5391 jbbell@lbl.gov X Wes Bethel 510-486-7353 ewbethel@lbl.gov X X Mark Brewer 510-666-0263 mlbrewer@uclink.berkeley.edu X Greg Butler 510-486-8691 gbutler@nersc.gov X X Christopher Cantalupo 510-495-2967 cmc@nersc.gov X Jonathan Carter 510-486-7514
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Attendee List Attendee List Attendees at NERSC: Onsite and Remote participation Tech-X, On-site 29 registered (29 for Oct. 7, 25 for Oct. 8) Name Affiliation Location Days Dinner? Katie Antypas NERSC InPerson Oct. 7-8 Yes Travis Austin Tech-X Corp InPerson Oct. 7 No Jon Bashor LBNL InPerson Oct. 7-8 Yes George Bell Tech-X Corp InPerson Oct. 7-8 No Jeff Broughton NERSC InPerson Oct. 7-8 Yes David Bruhwiler Tech-X Corp InPerson Oct. 7-8 No Eric Bylaska PNNL InPerson Oct. 7-8 Yes Scott Campbell
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
DOE and DOD Manufacturing Innovation Topics Workshop REGISTRATION LIST David Alman National Energy Technology Laboratory Everett Anderson Proton OnSite Balu Balachandran Argonne National Laboratory Suresh Baskaran Pacific Northwest National Laboratory Henry Berns Guild Associates Craig Blue Oak Ridge National Laboratory Brad Bohlmann CCEFP / University of Minnesota Dane Boysen ARPA-E, DOE Megan Brewster Department of Energy/Advanced Manufacturing Office Jasmine Bridges Department of
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Natural Gas Infrastructure R&D and Methane Emissions Mitigation Workshop November 12-13, 2014 PARTICIPANT LIST Brian Anderson West Virginia University James Armstrong Apogee Scientific, Inc. Terry Boss Interstate Natural Gas Association of America Ralph Braccio Booz Allen Hamilton Patrick Brady RedWave Energy, Inc. Megan Brewster U.S. DOE, Advanced Manufacturing Office Joseph Broz SRI International Klaus Brun Southwest Research Institute Dan Carder West Virginia University Mark Carroll Idaho
ARM - Measurement - Hydrometeor size
U.S. Department of Energy (DOE) - all webpages (Extended Search)
size ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Hydrometeor size The size of a hydrometeor, measured directly or derived from other measurements. Categories Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those
Chalasani, P.; Saias, I.; Jha, S.
1996-04-08
As increasingly large volumes of sophisticated options (called derivative securities) are traded in world financial markets, determining a fair price for these options has become an important and difficult computational problem. Many valuation codes use the binomial pricing model, in which the stock price is driven by a random walk. In this model, the value of an n-period option on a stock is the expected time-discounted value of the future cash flow on an n-period stock price path. Path-dependent options are particularly difficult to value since the future cash flow depends on the entire stock price path rather than on just the final stock price. Currently such options are approximately priced by Monte carlo methods with error bounds that hold only with high probability and which are reduced by increasing the number of simulation runs. In this paper the authors show that pricing an arbitrary path-dependent option is {number_sign}-P hard. They show that certain types f path-dependent options can be valued exactly in polynomial time. Asian options are path-dependent options that are particularly hard to price, and for these they design deterministic polynomial-time approximate algorithms. They show that the value of a perpetual American put option (which can be computed in constant time) is in many cases a good approximation to the value of an otherwise identical n-period American put option. In contrast to Monte Carlo methods, the algorithms have guaranteed error bounds that are polynormally small (and in some cases exponentially small) in the maturity n. For the error analysis they derive large-deviation results for random walks that may be of independent interest.
File:OperatingPermitCheckList.pdf | Open Energy Information
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OperatingPermitCheckList.pdf Jump to: navigation, search File File history File usage File:OperatingPermitCheckList.pdf Size of this preview: 463 599 pixels. Other resolution:...
Boyle, Peter; Christ, Norman; Gara, Alan; Kim; ,Changhoan; Mawhinney, Robert; Ohmacht, Martin; Sugavanam, Krishnan
2012-08-28
A list prefetch engine improves a performance of a parallel computing system. The list prefetch engine receives a current cache miss address. The list prefetch engine evaluates whether the current cache miss address is valid. If the current cache miss address is valid, the list prefetch engine compares the current cache miss address and a list address. A list address represents an address in a list. A list describes an arbitrary sequence of prior cache miss addresses. The prefetch engine prefetches data according to the list, if there is a match between the current cache miss address and the list address.
Boyle, Peter; Christ, Norman; Gara, Alan; Kim, Changhoan; Mawhinney, Robert; Ohmacht, Martin; Sugavanam, Krishnan
2014-08-12
A list prefetch engine improves a performance of a parallel computing system. The list prefetch engine receives a current cache miss address. The list prefetch engine evaluates whether the current cache miss address is valid. If the current cache miss address is valid, the list prefetch engine compares the current cache miss address and a list address. A list address represents an address in a list. A list describes an arbitrary sequence of prior cache miss addresses. The prefetch engine prefetches data according to the list, if there is a match between the current cache miss address and the list address.
Bose gases, Bose–Einstein condensation, and the Bogoliubov approximation
Seiringer, Robert
2014-07-15
We review recent progress towards a rigorous understanding of the Bogoliubov approximation for bosonic quantum many-body systems. We focus, in particular, on the excitation spectrum of a Bose gas in the mean-field (Hartree) limit. A list of open problems will be discussed at the end.
Approximate circuits for increased reliability
Hamlet, Jason R.; Mayo, Jackson R.
2015-08-18
Embodiments of the invention describe a Boolean circuit having a voter circuit and a plurality of approximate circuits each based, at least in part, on a reference circuit. The approximate circuits are each to generate one or more output signals based on values of received input signals. The voter circuit is to receive the one or more output signals generated by each of the approximate circuits, and is to output one or more signals corresponding to a majority value of the received signals. At least some of the approximate circuits are to generate an output value different than the reference circuit for one or more input signal values; however, for each possible input signal value, the majority values of the one or more output signals generated by the approximate circuits and received by the voter circuit correspond to output signal result values of the reference circuit.
Approximate circuits for increased reliability
Hamlet, Jason R.; Mayo, Jackson R.
2015-12-22
Embodiments of the invention describe a Boolean circuit having a voter circuit and a plurality of approximate circuits each based, at least in part, on a reference circuit. The approximate circuits are each to generate one or more output signals based on values of received input signals. The voter circuit is to receive the one or more output signals generated by each of the approximate circuits, and is to output one or more signals corresponding to a majority value of the received signals. At least some of the approximate circuits are to generate an output value different than the reference circuit for one or more input signal values; however, for each possible input signal value, the majority values of the one or more output signals generated by the approximate circuits and received by the voter circuit correspond to output signal result values of the reference circuit.
1995-06-01
This document is a master list of acronyms and other abbreviations that are used by or could be useful to, the personnel at Los Alamos National Laboratory. Many specialized and well-known abbreviations are not included in this list.
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Libraries List List of Math Libraries Package Platform Version Module Install Date Date Made Default A Fortran interface to the GNU Scientific Library (GSL) edison 1.0.0 fgsl1.0.0 ...
ARM - Measurement - Aerosol particle size
U.S. Department of Energy (DOE) - all webpages (Extended Search)
particle size ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Aerosol particle size Linear size (e.g. radius or diameter) of an aerosol particle. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for
ARM - Measurement - Cloud droplet size
U.S. Department of Energy (DOE) - all webpages (Extended Search)
droplet size ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Cloud droplet size Linear size (e.g. radius or diameter) of a cloud particle Categories Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for
ARM - Measurement - Particle size distribution
U.S. Department of Energy (DOE) - all webpages (Extended Search)
size distribution ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Particle size distribution The number of particles present in any given volume of air within a specified size range. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available
List mode multichannel analyzer
Archer, Daniel E.; Luke, S. John; Mauger, G. Joseph; Riot, Vincent J.; Knapp, David A.
2007-08-07
A digital list mode multichannel analyzer (MCA) built around a programmable FPGA device for onboard data analysis and on-the-fly modification of system detection/operating parameters, and capable of collecting and processing data in very small time bins (<1 millisecond) when used in histogramming mode, or in list mode as a list mode MCA.
File:Temporary storage plan review check list.pdf | Open Energy...
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Size-Controlled Synthesis of Porphyrinic Metal-Organic Framework...
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Size-Controlled Synthesis of Porphyrinic Metal-Organic Framework and Functionalization for Targeted Photodynamic Therapy Previous Next List Jiang, Juncong; Zhao, Yingbo; and Yaghi, ...
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Hazards Listing Fire Hazards Listing Focusing on fire prevention and protection. Contact Fire Management Officer Manuel J. L'Esperance Emergency Management (505) 667-1692 Email Currently reported fire hazards Below are the currently reported fire hazards. The list is updated each day by the close of business. Current fire hazards Hazard Description Date Submitted Status No hazards currently reported. Legend: R=Resolved, P=Pending, NAR=No Action Required
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Mailing Lists PDSF Mailing Lists pdsf-status@nersc.gov This is voluntary. You have to subscribe to it. This list can be chatty, since major and minor problems are sent to this list. Also multiple status updates will be sent for extended outages. Subscribe: Send email to pdsf-status-request@nersc.gov with subscribe in the subject of the message. Unsubscribe: Send email to pdsf-status-request@nersc.gov with unsubscribe in the subject of the message. pdsf-users@nersc.gov Users are subscribed to
Office of Scientific and Technical Information (OSTI)
http:www.osti.govledp The listing of new equipment available through the LEDP Grant Program. 89341061900001 - DIAPHRAGM GAS COMPRESSOR http:www.osti.govledp...
Computer Experiments for Function Approximations
Chang, A; Izmailov, I; Rizzo, S; Wynter, S; Alexandrov, O; Tong, C
2007-10-15
This research project falls in the domain of response surface methodology, which seeks cost-effective ways to accurately fit an approximate function to experimental data. Modeling and computer simulation are essential tools in modern science and engineering. A computer simulation can be viewed as a function that receives input from a given parameter space and produces an output. Running the simulation repeatedly amounts to an equivalent number of function evaluations, and for complex models, such function evaluations can be very time-consuming. It is then of paramount importance to intelligently choose a relatively small set of sample points in the parameter space at which to evaluate the given function, and then use this information to construct a surrogate function that is close to the original function and takes little time to evaluate. This study was divided into two parts. The first part consisted of comparing four sampling methods and two function approximation methods in terms of efficiency and accuracy for simple test functions. The sampling methods used were Monte Carlo, Quasi-Random LP{sub {tau}}, Maximin Latin Hypercubes, and Orthogonal-Array-Based Latin Hypercubes. The function approximation methods utilized were Multivariate Adaptive Regression Splines (MARS) and Support Vector Machines (SVM). The second part of the study concerned adaptive sampling methods with a focus on creating useful sets of sample points specifically for monotonic functions, functions with a single minimum and functions with a bounded first derivative.
Associative list processing unit
Hemmert, Karl Scott; Underwood, Keith D.
2013-01-29
An associative list processing unit and method comprising employing a plurality of prioritized cell blocks and permitting inserts to occur in a single clock cycle if all of the cell blocks are not full. Also, an associative list processing unit and method comprising employing a plurality of prioritized cell blocks and using a tree of prioritized multiplexers descending from the plurality of cell blocks.
Plasma Physics Approximations in Ares
Managan, R. A.
2015-01-08
Lee & More derived analytic forms for the transport properties of a plasma. Many hydro-codes use their formulae for electrical and thermal conductivity. The coefficients are complex functions of Fermi-Dirac integrals, F_{n}( μ/θ ), the chemical potential, μ or ζ = ln(1+e^{ μ/θ} ), and the temperature, θ = kT. Since these formulae are expensive to compute, rational function approximations were fit to them. Approximations are also used to find the chemical potential, either μ or ζ . The fits use ζ as the independent variable instead of μ/θ . New fits are provided for A^{α} (ζ ),A^{β} (ζ ), ζ, f(ζ ) = (1 + e^{-μ/θ})F_{1/2}(μ/θ), F_{1/2}'/F_{1/2}, F_{c}^{α}, and F_{c}^{β}. In each case the relative error of the fit is minimized since the functions can vary by many orders of magnitude. The new fits are designed to exactly preserve the limiting values in the non-degenerate and highly degenerate limits or as ζ→ 0 or ∞. The original fits due to Lee & More and George Zimmerman are presented for comparison.
Suspect Counterfeit SME List | Department of Energy
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SME List Suspect Counterfeit SME List April 2014 Suspect Counterfeit SME List. PDF icon Suspect Counterfeit SME List - April 2014 More Documents & Publications FAQS Sponsors and ...
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CAMD Cleanroom Chemical List Chemicals on this list are routine use chemicals in the CAMD Cleanroom and are available to users for general use. All others (*) are approved for use in the cleanroom but are not provided by CAMD. You must purchase from your department and store at the facility. If there are any other chemicals that you need to use that are not on this list, contact the Safety Director, Dr. Lorraine Day, day@lsu.edu, 225-578-4616 for approval. Resists Developers *AZ 1505 *AZ 1512
Listing of Defense Nuclear Facilities
Listing of Defense Nuclear Facilities The facilities listed below are considered DOE defense nuclear facilities for purposes of Section 3161. Kansas City Plant Pinellas Plant Mound ...
Linear-scaling implementation of the direct random-phase approximation
Kllay, Mihly
2015-05-28
We report the linear-scaling implementation of the direct random-phase approximation (dRPA) for closed-shell molecular systems. As a bonus, linear-scaling algorithms are also presented for the second-order screened exchange extension of dRPA as well as for the second-order MllerPlesset (MP2) method and its spin-scaled variants. Our approach is based on an incremental scheme which is an extension of our previous local correlation method [Rolik et al., J. Chem. Phys. 139, 094105 (2013)]. The approach extensively uses local natural orbitals to reduce the size of the molecular orbital basis of local correlation domains. In addition, we also demonstrate that using natural auxiliary functions [M. Kllay, J. Chem. Phys. 141, 244113 (2014)], the size of the auxiliary basis of the domains and thus that of the three-center Coulomb integral lists can be reduced by an order of magnitude, which results in significant savings in computation time. The new approach is validated by extensive test calculations for energies and energy differences. Our benchmark calculations also demonstrate that the new method enables dRPA calculations for molecules with more than 1000 atoms and 10?000 basis functions on a single processor.
Associative list processing unit
Hemmert, Karl Scott; Underwood, Keith D
2014-04-01
An associative list processing unit and method comprising employing a plurality of prioritized cell blocks and permitting inserts to occur in a single clock cycle if all of the cell blocks are not full.
Office of Scientific and Technical Information (OSTI)
https://www.osti.gov/ledp/ The listing of new equipment available through the LEDP Grant Program. 89023263010003 - 1600770 - PHOTO EYE SENSOR https://www.osti.gov/ledp/details.jsp?micnum=89023263010003 16 Nov 2016 00:00:00 -0500
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User Surveys NERSC Users Group Help Staff Blogs Request Repository Mailing List Need Help? Out-of-hours Status and Password help Call operations: 1-800-66-NERSC, option 1 or ...
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TeachersTopic List Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Topic List Atmosphere Atmospheric Heat Budget Atmospheric Pressure Composition of the Atmosphere Evolution of the Atmosphere Mesosphere Stratosphere Thermosphere Troposphere Oceans Oceans Sea Surface and Sea Level Weather and
Approximately 10,000 legacy DOE R&D documents added to Information Bridge
Office of Scientific and Technical Information (OSTI)
searchable database | OSTI, US Dept of Energy Office of Scientific and Technical Information Approximately 10,000 legacy DOE R&D documents added to Information Bridge searchable database Back to the OSTI News Listing for 2008 OSTI recently completed a digitization load of legacy technical reports issued during 1991 to 1994. This process added approximately 10,000 documents to the Information Bridge database, bringing the total (1991 to present) to more than 165,000 fully searchable
An approximation technique for jet impingement flow
Najafi, Mahmoud; Fincher, Donald; Rahni, Taeibi; Javadi, KH.; Massah, H.
2015-03-10
The analytical approximate solution of a non-linear jet impingement flow model will be demonstrated. We will show that this is an improvement over the series approximation obtained via the Adomian decomposition method, which is itself, a powerful method for analysing non-linear differential equations. The results of these approximations will be compared to the Runge-Kutta approximation in order to demonstrate their validity.
Approaches to Approved Contractor Lists
Office of Energy Efficiency and Renewable Energy (EERE)
Better Buildings Neighborhood Program Workforce / Business Partners Peer Exchange Call: Approaches to Approved Contractor Lists, Call Slides and Summary, April 25, 2013. This workforce/business partners peer exchange call discussed approaches to approved contractor lists.
IA Experts Listing 2014 | Department of Energy
IA Experts Listing 2014 IA Experts Listing 2014 PDF icon IA Experts Listing January 2014 More Documents & Publications Office of International Affairs Organization Chart PI...
TPA Project Manager's Lists - Hanford Site
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TPA Project Manager's Lists Tri-Party Agreement The Agreement Announcements List of Approved Changes TPA Project Manager's Lists Modifications for Public Comment Data Management...
DOE Radiation Records Contacts List
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DOE radiation records contact list for individuals to obtain records of occupational exposure directly from a DOE site.
Phone List | U.S. DOE Office of Science (SC)
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Phone List SLAC Site Office (SSO) SSO Home About Organization Chart .pdf file (155KB) Phone List Jobs Projects Contract Management NEPA Documents Contact Information SLAC Site Office U.S. Department of Energy Bldg 41, M/S 08A 2575 Sand Hill Road Menlo Park, CA 94025 P: (650) 926-2505 About Phone List Print Text Size: A A A FeedbackShare Page Name Office Phone Other Phone Bazzell, Kevin (650) 926-2513 C: (510) 292-0586 Burke, Patrick (650) 926-8573 C:(510) 459-3184 / BSO: (510) 486-7203 Golan,
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Programming Tools List List of Programming Tools Package Platform Version Module Install Date Date Made Default 7zip genepool 9.20.1 7zip/9.20.1 2013-01-14 2013-01-14 7zip phoebe 9.20.1 7zip/9.20.1 2013-01-14 2013-06-26 ABINIT cori 7.10.4 abinit/7.10.4 2015-09-24 2015-09-24 ABINIT cori 8.0.8 abinit/8.0.8 2016-06-30 2016-06-30 ABINIT edison 7.0.5 abinit/7.0.5 2013-03-12 2013-03-12 ABINIT edison 7.10.2 abinit/7.10.2 2015-01-27 ABINIT edison 7.10.4 abinit/7.10.4 2015-07-31 ABINIT edison 7.4.2
Approximate Bisimulation-Based Reduction of Power System Dynamic Models
Stankovic, AM; Dukic, SD; Saric, AT
2015-05-01
In this paper we propose approximate bisimulation relations and functions for reduction of power system dynamic models in differential- algebraic (descriptor) form. The full-size dynamic model is obtained by linearization of the nonlinear transient stability model. We generalize theoretical results on approximate bisimulation relations and bisimulation functions, originally derived for a class of constrained linear systems, to linear systems in descriptor form. An algorithm for transient stability assessment is proposed and used to determine whether the power system is able to maintain the synchronism after a large disturbance. Two benchmark power systems are used to illustrate the proposed algorithm and to evaluate the applicability of approximate bisimulation relations and bisimulation functions for reduction of the power system dynamic models.
Specimen loading list for the varying temperature experiment
Qualls, A.L.; Sitterson, R.G.
1998-09-01
The varying temperature experiment HFIR-RB-13J has been assembled and inserted in the reactor. Approximately 5300 specimens were cleaned, inspected, matched, and loaded into four specimen holders. A listing of each specimen loaded into the steady temperature holder, its position in the capsule, and the identification of the corresponding specimen loaded into the varying temperature holder is presented in this report.
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Compilers Programming Models Version Control Tools Programming Libraries Performance and Debugging Tools Grid Software and Services NERSC Software Downloads Software Page Template Policies User Surveys NERSC Users Group Help Staff Blogs Request Repository Mailing List Need Help? Out-of-hours Status and Password help Call operations: 1-800-66-NERSC, option 1 or 510-486-6821 Account Support https://nim.nersc.gov accounts@nersc.gov 1-800-66-NERSC, option 2 or 510-486-8612 Consulting and questions
Acquisition Letter Archive Listing
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Letter Archive Listing 1 Acquisition Letter Title 1984-1R Rev. 12/92 Acquisition Letters 1987-3R Rev. 12/87 Prescreening Policies and Procedures 1987-5 09/04/87 Patents and Technical Data 1988-1 05/25/88 Rights in Technical Data Facilities 1990-3R Rev. 11/30/92 Internal Audit 1991-05 08/06/91 Guidance on Implementing DOE Fee Policy 1991-08 10/23/91 Special Considerations - Educational Institutions 1991-3 Undated Subcontractor Representations and Certifications - Coverage canceled by 59 FR 24357
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Compilers Programming Models Version Control Tools Programming Libraries Performance and Debugging Tools Grid Software and Services NERSC Software Downloads Software Page Template Policies User Surveys NERSC Users Group Help Staff Blogs Request Repository Mailing List Need Help? Out-of-hours Status and Password help Call operations: 1-800-66-NERSC, option 1 or 510-486-6821 Account Support https://nim.nersc.gov accounts@nersc.gov 1-800-66-NERSC, option 2 or 510-486-8612 Consulting and questions
Approximate error conjugation gradient minimization methods
Kallman, Jeffrey S
2013-05-21
In one embodiment, a method includes selecting a subset of rays from a set of all rays to use in an error calculation for a constrained conjugate gradient minimization problem, calculating an approximate error using the subset of rays, and calculating a minimum in a conjugate gradient direction based on the approximate error. In another embodiment, a system includes a processor for executing logic, logic for selecting a subset of rays from a set of all rays to use in an error calculation for a constrained conjugate gradient minimization problem, logic for calculating an approximate error using the subset of rays, and logic for calculating a minimum in a conjugate gradient direction based on the approximate error. In other embodiments, computer program products, methods, and systems are described capable of using approximate error in constrained conjugate gradient minimization problems.
1997-07-01
Summaries and order information are presented for approximately 40 reports from DOE-funded research by the National Petroleum Technology Office. Topics include: exploration and drilling; extraction; field demonstrations of enhanced recovery; reservoir characterization; computer software and supporting documentation; and reel tape computer programs.
Directory Listings | Department of Energy
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by organization including their telephone number, routing symbol, location (buildingroom number), and fax number (when available) A listing of Field staff by organization ...
Read the EM Capital Asset Project List, which includes the project's name, site, current critical decision and current total project cost.
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CEO 6 Bowne, Johnny Energy Solutions Sales Director 7 Brandon, Lisa O. CDM Smith Client ... Forum Attendees List March 8, 2016 111 Smith, James Edgewater Technical Associates ...
Sustainable Nanomaterials Workshop - Participants List
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Sustainable Nanomaterials Workshop June 26 th , 2012 - Washington, D.C. Participant List ... of Maine Barry Goodell Department of Sustainable Biomaterials Gopal Goyal International ...
A Survey of Techniques for Approximate Computing
Mittal, Sparsh
2016-03-18
Approximate computing trades off computation quality with the effort expended and as rising performance demands confront with plateauing resource budgets, approximate computing has become, not merely attractive, but even imperative. Here, we present a survey of techniques for approximate computing (AC). We discuss strategies for finding approximable program portions and monitoring output quality, techniques for using AC in different processing units (e.g., CPU, GPU and FPGA), processor components, memory technologies etc., and programming frameworks for AC. Moreover, we classify these techniques based on several key characteristics to emphasize their similarities and differences. Finally, the aim of this paper is tomore » provide insights to researchers into working of AC techniques and inspire more efforts in this area to make AC the mainstream computing approach in future systems.« less
An improved proximity force approximation for electrostatics
Fosco, Cesar D.; Instituto Balseiro, Universidad Nacional de Cuyo, R8402AGP Bariloche ; Lombardo, Fernando C.; IFIBA ; Mazzitelli, Francisco D.
2012-08-15
A quite straightforward approximation for the electrostatic interaction between two perfectly conducting surfaces suggests itself when the distance between them is much smaller than the characteristic lengths associated with their shapes. Indeed, in the so called 'proximity force approximation' the electrostatic force is evaluated by first dividing each surface into a set of small flat patches, and then adding up the forces due two opposite pairs, the contributions of which are approximated as due to pairs of parallel planes. This approximation has been widely and successfully applied in different contexts, ranging from nuclear physics to Casimir effect calculations. We present here an improvement on this approximation, based on a derivative expansion for the electrostatic energy contained between the surfaces. The results obtained could be useful for discussing the geometric dependence of the electrostatic force, and also as a convenient benchmark for numerical analyses of the tip-sample electrostatic interaction in atomic force microscopes. - Highlights: Black-Right-Pointing-Pointer The proximity force approximation (PFA) has been widely used in different areas. Black-Right-Pointing-Pointer The PFA can be improved using a derivative expansion in the shape of the surfaces. Black-Right-Pointing-Pointer We use the improved PFA to compute electrostatic forces between conductors. Black-Right-Pointing-Pointer The results can be used as an analytic benchmark for numerical calculations in AFM. Black-Right-Pointing-Pointer Insight is provided for people who use the PFA to compute nuclear and Casimir forces.
TTO Phone List | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
TTO Phone List TTO Phone List TTO Phone List Revised 04/02/2014 TTO Phone List Revised 04-02-14.docx (23.97 KB) More Documents & Publications Technology Transfer Reporting Form Vehicle Technologies Office Merit Review 2015: High Energy High Power Battery Exceeding PHEV-40 Requirements Technical Standards Managers Contact List
Nearest neighbor rules PAC-approximate feedforward networks
Rao, N.S.V.
1996-05-01
The problem of function estimation using feedforward neural networks based on an indpendently and identically generated sample is addressed. The feedforward networks with a single hidden layer of 1/(1+{epsilon}{sup -{gamma}z}) units and bounded parameters are considered. It is shown that given a sufficiently large sample, a nearest neighbor rule approximates the best neural network such that the expected error is arbitrarily bounded with an arbitrary high probability. Result is extendible to other neural networks where the hidden units satisfy a suitable Lipschitz condition. A result of practical interest is that the problem of computing a neural network that approximates (in the above sense) the best possible one is computationally difficult, whereas a nearest neighbor rule is linear-time computable in terms of the sample size.
PAC learning algorithms for functions approximated by feedforward networks
Rao, N.S.V.; Protopopescu, V.
1996-06-01
The authors present a class of efficient algorithms for PAC learning continuous functions and regressions that are approximated by feedforward networks. The algorithms are applicable to networks with unknown weights located only in the output layer and are obtained by utilizing the potential function methods of Aizerman et al. Conditions relating the sample sizes to the error bounds are derived using martingale-type inequalities. For concreteness, the discussion is presented in terms of neural networks, but the results are applicable to general feedforward networks, in particular to wavelet networks. The algorithms can be directly adapted to concept learning problems.
Lavender, J.C.; Roe, N.A.
1995-04-13
This analysis assigns preliminary safety class (SC) designations to major systems and structures associated with the Multi-Function Waste Tank Facility (MWTF) project in accordance with the Multi-Function QAPP, W-236A (Hall 1994). Also included are SC assignments for those subsystems and major components of the major systems discussed in this document (see Appendices A and B). Component safety classifications have been completed through inspection (using engineering judgement) for simple systems, and through use of logic models (i.e., fault trees) for complicated systems. This analysis is intended to augment the SC systems list supplied in Chapter 9 of the MWTF Preliminary Safety Analysis Report (WHC 1994). Whereas WHC (1994) only addresses select systems, this analysis addresses the SC ramifications of all MWTF systems and structures as identified in the Title 1 design media. This document provides additional analyses of the system safety classifications assignments, and classifies systems not addressed in WHC (1994). This analysis specifically describes the safety functions) that must be performed by each MWTF system.
PHYSICAL INVENTORY LISTING | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
PHYSICAL INVENTORY LISTING PHYSICAL INVENTORY LISTING Form supports nuclear materials control and accountability. PHYSICAL INVENTORY LISTING (15.97 KB) More Documents & Publications DOE/NRC F 742C Material Balance Report DOE F 74
Energy & Manufacturing Workforce Training Topics List - Version...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
& Manufacturing Workforce Training Topics List - Version 1.7 (02.11.14) Energy & Manufacturing Workforce Training Topics List - Version 1.7 (02.11.14) View this searchable list of ...
PMCDP Training Events Listing | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
PMCDP Training Events Listing PMCDP Training Events Listing Calendar listing of all PMCDP Training Events. Advanced Risk Management (FQN 301), SRS May 24, 2016 8:00AM EDT to May ...
Category:Lists for Companies | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
in Buildings Sector List of Companies in Carbon Sector L cont. List of Companies in Efficiency Sector List of Companies in Geothermal Sector List of Companies in Hydrogen...
DOE Employee Concerns Program (ECP) Contact List | Department...
DOE Employee Concerns Program (ECP) Contact List DOE Employee Concerns Program (ECP) Contact List DOE Employee Concerns Program (ECP) Contact List PDF icon ECP Contact List May...
Category:Lists for Incentives | Open Energy Information
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Incentives List of Doors Incentives List of DuctAir sealing Incentives List of Energy Mgmt. SystemsBuilding Controls Incentives List of Equipment Insulation Incentives...
Property Representatives Lists - HQ | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Property Representatives Lists - HQ Property Representatives Lists - HQ These are the current lists of Headquarters Property Representatives. If you have any questions please contact: Ellen Hall, Office of Logistics Operations, (301) 903-2613. Authorized Property Pass Signers List and Accountable Property Representatives List, Effective April 1, 2016 (106.12 KB) More Documents & Publications Directory Listings AU Functional Area Points of Contact by Office Directors Headquarters Facilities
Technology Deployment List | Open Energy Information
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technologiesmatrix.htmlcat OpenEI Keyword(s): EERE tool, Technology Deployment List Language: English References: Technology Deployment List1 Identify emerging-and...
DOE - NNSA/NFO -- Acronyms List
U.S. Department of Energy (DOE) - all webpages (Extended Search)
List of Acronyms NNSANFO Language Options U.S. DOENNSA - Nevada Field Office List of Acronyms used on this website Acronym Definition AEC Atomic Energy Commission AMSI Advanced ...
HUD Multifamily Property Listings Eligible for Weatherization...
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HUD Multifamily Property Listings Eligible for Weatherization Assistance HUD Multifamily Property Listings Eligible for Weatherization Assistance February 23, 2016 - 4:29pm Addthis ...
Category:Lists | Open Energy Information
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pages. Subcategories This category has the following 3 subcategories, out of 3 total. L Lists for Companies 11 pages Lists for Incentive Types 64 pages ...
List of Approved Changes - Hanford Site
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Changes Tri-Party Agreement The Agreement Announcements List of Approved Changes TPA Project Manager's Lists Modifications for Public Comment Data Management MP-14 WIDS...
CNM Scientific Contact List | Argonne National Laboratory
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CNM Scientific Contact List A list of scientific contacts for the Center for Nanoscale Materials PDF icon CNM Scientific Contact sheet 8_16
DOE State Energy Program List of Reporting Metrics, which was produced by the Office of Energy Efficiency and Renewable Energy Weatherization and Intergovernmental Program for SEP and the Energy Efficiency and Conservation Block Grants (EECBG) programs.
Quality Procedure- Approved Suppliers List
This procedure establishes the responsibilities, process, and records for developing and maintaining the Approved Suppliers List (ASL) for EM Headquarters Office of Standards and Quality Assurance in accordance with EM-QA-001, Environmental Management Quality Assurance Program.
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Help Staff Blogs Request Repository Mailing List Need Help? Out-of-hours Status and Password help Call operations: 1-800-66-NERSC, option 1 or 510-486-6821 Account Support ...
Listing of Defense Nuclear Facilities
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Listing of Defense Nuclear Facilities The facilities listed below are considered DOE defense nuclear facilities for purposes of Section 3161. Kansas City Plant Pinellas Plant Mound Facility Fernald Environmental Management Project Site Pantex Plant Rocky Flats Environmental Technology Site, including the Oxnard Facility Savannah River Site Los Alamos National Laboratory Sandia National Laboratory Lawrence Livermore National Laboratory Oak Ridge National Laboratory Nevada Test Site 1 Y-12 Plant
Approximate inverse preconditioners for general sparse matrices
Chow, E.; Saad, Y.
1994-12-31
Preconditioned Krylov subspace methods are often very efficient in solving sparse linear matrices that arise from the discretization of elliptic partial differential equations. However, for general sparse indifinite matrices, the usual ILU preconditioners fail, often because of the fact that the resulting factors L and U give rise to unstable forward and backward sweeps. In such cases, alternative preconditioners based on approximate inverses may be attractive. We are currently developing a number of such preconditioners based on iterating on each column to get the approximate inverse. For this approach to be efficient, the iteration must be done in sparse mode, i.e., we must use sparse-matrix by sparse-vector type operatoins. We will discuss a few options and compare their performance on standard problems from the Harwell-Boeing collection.
Second derivatives for approximate spin projection methods
Thompson, Lee M.; Hratchian, Hrant P.
2015-02-07
The use of broken-symmetry electronic structure methods is required in order to obtain correct behavior of electronically strained open-shell systems, such as transition states, biradicals, and transition metals. This approach often has issues with spin contamination, which can lead to significant errors in predicted energies, geometries, and properties. Approximate projection schemes are able to correct for spin contamination and can often yield improved results. To fully make use of these methods and to carry out exploration of the potential energy surface, it is desirable to develop an efficient second energy derivative theory. In this paper, we formulate the analytical second derivatives for the Yamaguchi approximate projection scheme, building on recent work that has yielded an efficient implementation of the analytical first derivatives.
Microscopic justification of the equal filling approximation
Perez-Martin, Sara; Robledo, L. M.
2008-07-15
The equal filling approximation, a procedure widely used in mean-field calculations to treat the dynamics of odd nuclei in a time-reversal invariant way, is justified as the consequence of a variational principle over an average energy functional. The ideas of statistical quantum mechanics are employed in the justification. As an illustration of the method, the ground and lowest-lying states of some octupole deformed radium isotopes are computed.
Microsoft PowerPoint - ARM2007LetterSize.ppt
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Remote sensing microphysical retrieval and cloud microphysics parameterizations rely on a knowledge of the shape of cloud drop size distributions (DSD). These are often approximated by Gamma, lognormal, or, more specifically by Khrgian-Mazin, Marshall-Palmer type distributions. We ask the question which functional form approximates best the drop size distributions in drizzling stratocumulus? Specifically, we evaluate the accuracy of lognormal and Gamma-type distributions in approximating higher
Photoelectron spectroscopy and the dipole approximation
Hemmers, O.; Hansen, D.L.; Wang, H.
1997-04-01
Photoelectron spectroscopy is a powerful technique because it directly probes, via the measurement of photoelectron kinetic energies, orbital and band structure in valence and core levels in a wide variety of samples. The technique becomes even more powerful when it is performed in an angle-resolved mode, where photoelectrons are distinguished not only by their kinetic energy, but by their direction of emission as well. Determining the probability of electron ejection as a function of angle probes the different quantum-mechanical channels available to a photoemission process, because it is sensitive to phase differences among the channels. As a result, angle-resolved photoemission has been used successfully for many years to provide stringent tests of the understanding of basic physical processes underlying gas-phase and solid-state interactions with radiation. One mainstay in the application of angle-resolved photoelectron spectroscopy is the well-known electric-dipole approximation for photon interactions. In this simplification, all higher-order terms, such as those due to electric-quadrupole and magnetic-dipole interactions, are neglected. As the photon energy increases, however, effects beyond the dipole approximation become important. To best determine the range of validity of the dipole approximation, photoemission measurements on a simple atomic system, neon, where extra-atomic effects cannot play a role, were performed at BL 8.0. The measurements show that deviations from {open_quotes}dipole{close_quotes} expectations in angle-resolved valence photoemission are observable for photon energies down to at least 0.25 keV, and are quite significant at energies around 1 keV. From these results, it is clear that non-dipole angular-distribution effects may need to be considered in any application of angle-resolved photoelectron spectroscopy that uses x-ray photons of energies as low as a few hundred eV.
Relativistic Random Phase Approximation At Finite Temperature
Niu, Y. F.; Paar, N.; Vretenar, D.; Meng, J.
2009-08-26
The fully self-consistent finite temperature relativistic random phase approximation (FTRRPA) has been established in the single-nucleon basis of the temperature dependent Dirac-Hartree model (FTDH) based on effective Lagrangian with density dependent meson-nucleon couplings. Illustrative calculations in the FTRRPA framework show the evolution of multipole responses of {sup 132}Sn with temperature. With increased temperature, in both monopole and dipole strength distributions additional transitions appear in the low energy region due to the new opened particle-particle and hole-hole transition channels.
Semiclassical approximation to supersymmetric quantum gravity
Kiefer, Claus; Lueck, Tobias; Moniz, Paulo
2005-08-15
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.
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Job Size Charts Hopper Job Size Charts Fractional Jobs The following charts show the fraction of hours used on Hopper in each of five job-core-size bins: 2014 Usage by Job Size Chart 2013 2012 2011 Large Jobs The following charts show the fraction of hours used on Hopper by jobs using greater than 16,384 cores: 2014 2013 2012 Usage by Job Size Chart 2011 Last edited: 2016-05-02 09:20:42
Magnetic reconnection under anisotropic magnetohydrodynamic approximation
Hirabayashi, K.; Hoshino, M.
2013-11-15
We study the formation of slow-mode shocks in collisionless magnetic reconnection by using one- and two-dimensional collisionless MHD codes based on the double adiabatic approximation and the Landau closure model. We bridge the gap between the Petschek-type MHD reconnection model accompanied by a pair of slow shocks and the observational evidence of the rare occasion of in-situ slow shock observations. Our results showed that once magnetic reconnection takes place, a firehose-sense (p{sub ?}>p{sub ?}) pressure anisotropy arises in the downstream region, and the generated slow shocks are quite weak comparing with those in an isotropic MHD. In spite of the weakness of the shocks, however, the resultant reconnection rate is 10%30% higher than that in an isotropic case. This result implies that the slow shock does not necessarily play an important role in the energy conversion in the reconnection system and is consistent with the satellite observation in the Earth's magnetosphere.
Approximate Model for Turbulent Stagnation Point Flow.
Dechant, Lawrence
2016-01-01
Here we derive an approximate turbulent self-similar model for a class of favorable pressure gradient wedge-like flows, focusing on the stagnation point limit. While the self-similar model provides a useful gross flow field estimate this approach must be combined with a near wall model is to determine skin friction and by Reynolds analogy the heat transfer coefficient. The combined approach is developed in detail for the stagnation point flow problem where turbulent skin friction and Nusselt number results are obtained. Comparison to the classical Van Driest (1958) result suggests overall reasonable agreement. Though the model is only valid near the stagnation region of cylinders and spheres it nonetheless provides a reasonable model for overall cylinder and sphere heat transfer. The enhancement effect of free stream turbulence upon the laminar flow is used to derive a similar expression which is valid for turbulent flow. Examination of free stream enhanced laminar flow suggests that the rather than enhancement of a laminar flow behavior free stream disturbance results in early transition to turbulent stagnation point behavior. Excellent agreement is shown between enhanced laminar flow and turbulent flow behavior for high levels, e.g. 5% of free stream turbulence. Finally the blunt body turbulent stagnation results are shown to provide realistic heat transfer results for turbulent jet impingement problems.
Technical Standards Managers Contact List | Department of Energy
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Technical Standards Managers Contact List Technical Standards Managers Contact List May 2016 Contact list for Technical Standards Managers in DOE, Field offices and National ...
2015 SSL TECHNOLOGY DEVELOPMENT WORKSHOP Attendee List | Department of
Energy Attendee List 2015 SSL TECHNOLOGY DEVELOPMENT WORKSHOP Attendee List 2015 DOE SSL Technology Development Workshop Attendee List.pdf (244.77 KB
ORISE Contract, SECTION J - List of Documents, Exhibits, and...
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PART III LIST OF DOCUMENTS, EXHIBITS, AND OTHER ATTACHMENTS SECTION J - LIST OF ATTACHMENTS J.1 LIST OF DOCUMENTS, EXHIBITS, AND OTHER ATTACHMENTS (MAY 1997)......
2014 DOE Project Management Workshop Attendees List | Department...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
DOE Project Management Workshop Attendees List 2014 DOE Project Management Workshop Attendees List PDF icon 2014 PM Workshop Attendees ListName & Office.pdf More Documents &...
Fire Safety Committee Membership List | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Fire Safety Committee Membership List Fire Safety Committee Membership List List of members representing DOE, NNSA and Contractors on the Fire Safety Committee. PDF icon Fire ...
DOE Qualified List of Energy Service Companies
Office of Energy Efficiency and Renewable Energy (EERE)
Document contains the latest list of U.S. Department of Energy (DOE) qualified energy service companies (ESCOs).
Critical Materials Workshop Final Participant List
Office of Energy Efficiency and Renewable Energy (EERE)
List of participants who attended the Critical Materials Workshop held on April 3, 2012 in Arlington, VA
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Reports » Edison Job Size Charts Edison Job Size Charts Fraction of Hours Used per Job Size Note: Interactive charts with current and past Cori and Edison data are now available on MyNERSC This chart shows the fraction of hours used on Edison in each of 5 job-core-size bins. 2015 Usage by Job Size Chart 2014 Fraction of Hours Used by Big Jobs This chart shows the fraction of hours used on Edison by jobs using 16,384 or more cores. 2015 Usage by Job Size Chart 2014 Last edited: 2016-04-21
Bond selective chemistry beyond the adiabatic approximation
Butler, L.J.
1993-12-01
One of the most important challenges in chemistry is to develop predictive ability for the branching between energetically allowed chemical reaction pathways. Such predictive capability, coupled with a fundamental understanding of the important molecular interactions, is essential to the development and utilization of new fuels and the design of efficient combustion processes. Existing transition state and exact quantum theories successfully predict the branching between available product channels for systems in which each reaction coordinate can be adequately described by different paths along a single adiabatic potential energy surface. In particular, unimolecular dissociation following thermal, infrared multiphoton, or overtone excitation in the ground state yields a branching between energetically allowed product channels which can be successfully predicted by the application of statistical theories, i.e. the weakest bond breaks. (The predictions are particularly good for competing reactions in which when there is no saddle point along the reaction coordinates, as in simple bond fission reactions.) The predicted lack of bond selectivity results from the assumption of rapid internal vibrational energy redistribution and the implicit use of a single adiabatic Born-Oppenheimer potential energy surface for the reaction. However, the adiabatic approximation is not valid for the reaction of a wide variety of energetic materials and organic fuels; coupling between the electronic states of the reacting species play a a key role in determining the selectivity of the chemical reactions induced. The work described below investigated the central role played by coupling between electronic states in polyatomic molecules in determining the selective branching between energetically allowed fragmentation pathways in two key systems.
Microsoft Word - BPD Priority List
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Priority Data Fields for the Building Performance Database (Updated 2014-12) Below is list of data fields ranked as the the priority fields in data collection for the purposes of BPD. These field names use the the Building Energy Data Exchange Specification 1.0 terms in order to clearly communicate the content of the fields and to facilitate easier data transfer. These fields have been determined to provide enough information to compare building energy performance. Mandatory fields are
Equipment Listing | The Ames Laboratory
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Equipment Listing Crystal Preparation and Characterization Resistance Heated Bridgman Crystal Growth Systems Back-Reflection Laue X-ray System Electro-Discharge Machining High and Low speed Diamond Saws Arc Zone Melting Crystal Growth System Lapping Fixtures for Precise Orientation of Crystals (0.1Â°) Physical Properties Measurement Facilities - Hardness Testing Vickers and Rockwell Hardness Testing Brinell Hardness Instrument Wilson Tukon Micro Hardness Tester Forming and Characterization
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listing NEPA CATEGORICAL EXCLUSIONS - 9/2016 TO PRESENT All Archives ARRA Date Title Recipient Name Location DOE/NETL Sponsors N 11/15/2016 Optimization of Advanced Steels for Cyclic Operation through an Integration of Material Testing, Modeling and Novel Component Test Validation Prime: Electric Power Research Institute (EPRI) Sub: Structural Integrity Associates Huntersville, NC FE/TDIC/Coal/Enabling Technologies & Partnerships N 11/15/2016 REE Identification and Characterization of Coal
List of Authors and Contributors
U.S. Department of Energy (DOE) - all webpages (Extended Search)
C L S C O N C E P T U A L D E S I G N R E P O R T List of Authors and Contributors J. Arthur, Stanford Synchrotron Radiation Laboratory, Stanford, CA, USA P. Anfinrud, National Institutes of Health, Bethesda, MD, USA P. Audebert, Laboratoire pour l'Utilisation des Lasers, Paris, France K. Bane, Stanford Linear Accelerator Center, Stanford, CA, USA I. Ben-Zvi, Brookhaven National Laboratory, Upton, NY, USA V. Bharadwaj, Stanford Linear Accelerator Center, Stanford, CA, USA R. Bionta, Lawrence
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1993-11-01
In September 1989, a Memorandum of Agreement among DOE offices regarding the environmental management of DOE facilities was signed by appropriate Assistant Secretaries and Directors. This Memorandum of Agreement established the criteria for EM line responsibility. It stated that EM would be responsible for all DOE facilities, operations, or sites (1) that have been assigned to DOE for environmental restoration and serve or will serve no future production need; (2) that are used for the storage, treatment, or disposal of hazardous, radioactive, and mixed hazardous waste materials that have been properly characterized, packaged, and labelled, but are not used for production; (3) that have been formally transferred to EM by another DOE office for the purpose of environmental restoration and the eventual return to service as a DOE production facility; or (4) that are used exclusively for long-term storage of DOE waste material and are not actively used for production, with the exception of facilities, operations, or sites under the direction of the DOE Office of Civilian Radioactive Waste Management. As part of the implementation of the Memorandum of Agreement, Field Offices within DOE submitted their listings of facilities, systems, operation, and sites for which EM would have line responsibility. It is intended that EM facility listings will be revised on a yearly basis so that managers at all levels will have a valid reference for the planning, programming, budgeting and execution of EM activities.
Acquisition Letter Archive listing | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Archive listing Acquisition Letter Archive listing TO RECEIVE A COPY OF AN ARCHIVED ACQUISITION LETTER (AL), PLEASE USE THE PDF FILE BELOW TO SEARCH FOR THE AL NAME/NUMBER AND SEND IT IN TO DOE_OAPMPOLICY@HQ.DOE.GOV. Acquisition Letter Archive listing.pdf (86.37 KB) More Documents & Publications Microsoft Word - LibraryofPriorRulemakings.doc Acquisition Letters Remaining in Effect Policy Flash Archive Search File
Completed Sites Listing | Department of Energy
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Cleanup Sites » Completed Sites » Completed Sites Listing Completed Sites Listing As of fiscal year 2012, EM (and its predecessor organization UMTRA) completed cleanup and closed 91 sites in 24 states. Completed Sites Listing (37.4 KB) More Documents & Publications EM's Cleanup Mission: 16 Sites in 11 States Remaining EA-1406: Final Environmental Assessment Electronic Docket Room (e-Docket Room) Active Sites Active Sites Additional Information Completed Sites
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Training & Tutorials Software Policies User Surveys NERSC Users Group Help Staff Blogs Request Repository Mailing List Need Help? Out-of-hours Status and Password help Call ...
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... Gordon H. Matthews General Engineer Bonneville Power Administration PO Box 3621 Portland OR 97208 United States 503-230-3275 Registration Contact List: Electricity Transmission ...
DOE Qualified List of ESCOs Application Forms
Applications for the U.S. Department of Energy (DOE) Qualified List of Energy Service Companies (ESCOs) are accepted throughout the year.
Teaming Partner List for BENEFIT FOA Released
The Building Technologies Office (BTO) is compiling a Teaming Partner List to facilitate the formation of new project teams for the anticipated Buildings Energy Efficiency Frontiers &...
Final Participant List | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
List of the participants in the 2005 Workshop on Manufacturing for the Hydrogen Economy PDF icon mfgwkshpparticpicants.pdf More Documents & Publications Roadmap on Manufacturing ...
PowerSaver Approved Lenders List
This document describes the 2014 approved PowerSaver lender list with contact information for the various states across the United States.
National Nuclear Security Administration Supplemental Listing...
National Nuclear Security Administration (NNSA)
National Nuclear Security Administration Supplemental Listing of Directives Affecting Nuclear Safety Requirements Last Updated 062014 U.S. DEPARTMENT OF ENERGY National Nuclear ...
Laboratory Equipment Donation Program - Equipment List
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Equipment List Already know the item control number? Submit Reset Item Control Number Equipment Name Date Entered Condition Picture 89022961820152 75164 VACUUM CONDENSER 07272016 ...
List of Hydrogen Incentives | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
Incentives Jump to: navigation, search The following contains the list of 61 Hydrogen Incentives. CSV (rows 1 - 61) Incentive Incentive Type Place Applicable Sector Eligible...
HUD Updated Supplemental Lists - February 18, 2016 | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Updated Supplemental Lists - February 18, 2016 HUD Updated Supplemental Lists - February 18, 2016 HUD Updated Supplemental Lists - February 18, 2016 Updated_supplemental_lists_1Q_2Q_ 2-18-16.xlsx (23.23 KB) More Documents & Publications updated_supplemental_lists_1n-2n-3m_07-06-2012.xlsx updated_supplemental_lists_1m-2m-3l-04-05-2012.xlsx updated_supplemental_lists_1p_2p_3o_04302013.xlsx
Carreras, B. A.; Physics Department, College of Natural Science and Mathematics and Geophysical Institute, University of Alaska, Fairbanks, Alaska 99775; Physics Department, Universidad Carlos III de Madrid, Madrid ; Newman, D. E.; Dobson, Ian
2014-06-15
Failures of the complex infrastructures society depends on having enormous human and economic cost that poses the question: Are there ways to optimize these systems to reduce the risks of failure? A dynamic model of one such system, the power transmission grid, is used to investigate the risk from failure as a function of the system size. It is found that there appears to be optimal sizes for such networks where the risk of failure is balanced by the benefit given by the size.
Record Liaison Officers (RLO) Distribution List | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Record Liaison Officers (RLO) Distribution List Record Liaison Officers (RLO) Distribution List Distribution List of Record Liaison Officers Record Liaison Officers (RLO) Distribution List (50.56 KB) More Documents & Publications Property Representatives Lists - HQ DOE F 243.3 AU Functional Area Points of Contact by Office Directors
DOE Integrated Safety Management Champions List | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Integrated Safety Management Champions List DOE Integrated Safety Management Champions List List of DOE Integrated Safety Management Champions: May 27, 2016 List of DOE Integrated Safety Management Champions: May 2016 (135.41 KB) More Documents & Publications FTCP Members FAQS Sponsors and Recognized Experts Fire Safety Committee Membership List
A Multithreaded Algorithm for Network Alignment Via Approximate...
Office of Scientific and Technical Information (OSTI)
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. ...
Charge-conjugation symmetric complete impulse approximation for...
Office of Scientific and Technical Information (OSTI)
from the spectator quark (referred to as the relativistic impulse approximation). In this study we also include the contributions from the poles of the quark which interacts with ...
ANALOG QUANTUM NEURON FOR FUNCTIONS APPROXIMATION A. EZHOV; A...
Office of Scientific and Technical Information (OSTI)
FOR FUNCTIONS APPROXIMATION A. EZHOV; A. KHROMOV; G. BERMAN 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; IMPLEMENTATION; NERVE CELLS; WAVEGUIDES We describe a system able...
How to Solve Schroedinger Problems by Approximating the Potential Function
Ledoux, Veerle; Van Daele, Marnix
2010-09-30
We give a survey over the efforts in the direction of solving the Schroedinger equation by using piecewise approximations of the potential function. Two types of approximating potentials have been considered in the literature, that is piecewise constant and piecewise linear functions. For polynomials of higher degree the approximating problem is not so easy to integrate analytically. This obstacle can be circumvented by using a perturbative approach to construct the solution of the approximating problem, leading to the so-called piecewise perturbation methods (PPM). We discuss the construction of a PPM in its most convenient form for applications and show that different PPM versions (CPM,LPM) are in fact equivalent.
Quasiparticle random-phase approximation with interactions from...
Office of Scientific and Technical Information (OSTI)
Quasiparticle random-phase approximation with interactions from the Similarity Renormalization Group Citation Details In-Document Search Title: Quasiparticle random-phase ...
PART III -LIST OF DOCUMENTS, EXHIBITS, AND OTHER ATTACHMENTS
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J-1-1 SECTION J Attachment J-1 LIST OF APPLICABLE FEDERAL LAW & REGULATIONS - LIST A The ... Omission of any applicable law or regulation from List A does not affect the obligation of ...
Technology Forum Map and List of Awardees' Posters and Exhibits...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Technology Forum Map and List of Awardees' Posters and Exhibits Technology Forum Map and List of Awardees' Posters and Exhibits Technology Forum map and list of exhibits.pdf More...
Oil and Gas Field Code Master List - Energy Information Administration
Energy Information Administration (EIA) (indexed site)
Oil and Gas Field Code Master List With Data for 2015 | Release Date: February 24, 2016 | ... Comprehensive listing of U.S. oil and gas field names. Oil and Gas Field Code Master List ...
Properties of the Boltzmann equation in the classical approximation
Epelbaum, Thomas; Gelis, François; Tanji, Naoto; Wu, Bin
2014-12-30
We examine the Boltzmann equation with elastic point-like scalar interactions in two different versions of the the classical approximation. Although solving numerically the Boltzmann equation with the unapproximated collision term poses no problem, this allows one to study the effect of the ultraviolet cutoff in these approximations. This cutoff dependence in the classical approximations of the Boltzmann equation is closely related to the non-renormalizability of the classical statistical approximation of the underlying quantum field theory. The kinetic theory setup that we consider here allows one to study in a much simpler way the dependence on the ultraviolet cutoff, since one has also access to the non-approximated result for comparison.
Properties of the Boltzmann equation in the classical approximation
Epelbaum, Thomas; Gelis, François; Tanji, Naoto; Wu, Bin
2014-12-30
We examine the Boltzmann equation with elastic point-like scalar interactions in two different versions of the the classical approximation. Although solving numerically the Boltzmann equation with the unapproximated collision term poses no problem, this allows one to study the effect of the ultraviolet cutoff in these approximations. This cutoff dependence in the classical approximations of the Boltzmann equation is closely related to the non-renormalizability of the classical statistical approximation of the underlying quantum field theory. The kinetic theory setup that we consider here allows one to study in a much simpler way the dependence on the ultraviolet cutoff, since onemore » has also access to the non-approximated result for comparison.« less
Properties of the Boltzmann equation in the classical approximation
Tanji, Naoto; Epelbaum, Thomas; Gelis, Francois; Wu, Bin
2014-12-30
We study the Boltzmann equation with elastic point-like scalar interactions in two different versions of the the classical approximation. Although solving numerically the Boltzmann equation with the unapproximated collision term poses no problem, this allows one to study the effect of the ultraviolet cutoff in these approximations. This cutoff dependence in the classical approximations of the Boltzmann equation is closely related to the non-renormalizability of the classical statistical approximation of the underlying quantum field theory. The kinetic theory setup that we consider here allows one to study in a much simpler way the dependence on the ultraviolet cutoff, since one has also access to the non-approximated result for comparison.
DOE Privacy Program Contact Listing as of September 21, 2010...
Energy.gov [DOE] (indexed site)
DOE Privacy Program Contact Listing as of September 21, 2010 DOE Privacy Program Contact Listing as of September 21, 2010 More Documents & Publications Privacy Act Officers Contact...
List of Solar Pool Heating Incentives | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
List of Solar Pool Heating Incentives Jump to: navigation, search The following contains the list of 117 Solar Pool Heating Incentives. CSV (rows 1 - 117) Incentive Incentive Type...
List of Solar Thermal Process Heat Incentives | Open Energy Informatio...
OpenEI (Open Energy Information) [EERE & EIA]
List of Solar Thermal Process Heat Incentives Jump to: navigation, search The following contains the list of 211 Solar Thermal Process Heat Incentives. CSV (rows 1 - 211) Incentive...
Staff Listing - Office of Regulation and International Engagement...
Office of Environmental Management (EM)
Staff Listing - Office of Regulation and International Engagement Staff Listing - Office of Regulation and International Engagement Office of Regulation and International ...
Public Meeting Attendee List: Sustainable Design Standards for...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Public Meeting Attendee List: Sustainable Design Standards for Federal Buildings Public Meeting Attendee List: Sustainable Design Standards for Federal Buildings This document is ...
Higher-degree linear approximations of nonlinear systems
Karahan, S.
1989-01-01
In this dissertation, the author develops a new method for obtaining higher degree linear approximations of nonlinear control systems. The standard approach in the analysis and synthesis of nonlinear systems is a first order approximation by a linear model. This is usually performed by obtaining a series expansion of the system at some nominal operating point and retaining only the first degree terms in the series. The accuracy of this approximation depends on how far the system moves away from the normal point, and on the relative magnitudes of the higher degree terms in the series expansion. The approximation is achieved by finding an appropriate nonlinear coordinate transformation-feedback pair to perform the higher degree linearization. With the proposed method, one can improve the accuracy of the approximation up to arbitrarily higher degrees, provided certain solvability conditions are satisfied. The Hunt-Su linearizability theorem makes these conditions precise. This approach is similar to Poincare's Normal Form Theorem in formulation, but different in its solution method. After some mathematical background the author derives a set of equations (called the Homological Equations). A solution to this system of linear equations is equivalent to the solution to the problem of approximate linearization. However, it is generally not possible to solve the system of equations exactly. He outlines a method for systematically finding approximate solutions to these equations using singular value decomposition, while minimizing an error with respect to some defined norm.
LERF Key People Contact List | Jefferson Lab
U.S. Department of Energy (DOE) - all webpages (Extended Search)
LERF Key People Contact List Program Management: Dr. Stephen Benson LERF Hall Leader felman@jlab.org 757-269-5026 (fax: 757-269-5519) 12000 Jefferson Avenue, Suite 19 Newport News, ...
Capital Asset Project List-June.xls
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
... by DOE Order 413.3B, Program and Project Management for the Acquisition of Capital Assets. ... Start of Operations or Project Completion Capital Asset Project List 6102016 1 of 1
Capital Asset Project List.xls
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
... by DOE Order 413.3B, Program and Project Management for the Acquisition of Capital Assets. ... Start of Operations or Project Completion Capital Asset Project List 4112016 1 of 1
Event Attendee List (Knoxville July 2012)
Office of Energy Efficiency and Renewable Energy (EERE)
Download the list of event attendees at the NNSA/DOE Small Business Summit in Knoxville, Tennessee, from the file below. For more information about the event and downloads of the presentations,...
EECBG SEP Attachment 1 - Process metric list
EECBG 10-07BSEP 10-006A Attachment 1: Process Metrics List Metric Area Metric Primary or ... Solar energy systems installed Number of solar energy systems installed Total capacity of ...
Firearms Modifications List- June 13, 2012
This document contains the currently-approved protective force "Firearms Modification List" referred to in Department of Energy Order 473.3, Protection Program Operations. This supersedes any previous versions of this document
Summer of Applied Geophysical Experience Reading List
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Geophysical Experience Reading List Summer of Applied Geophysical Experience Reading List A National Science Foundation Research Experiences for Undergraduates program Contacts Institute Director Reinhard Friedel-Los Alamos SAGE Co-Director W. Scott Baldridge-Los Alamos SAGE Co-Director Larry Braile-Purdue University Professional Staff Assistant Georgia Sanchez (505) 665-0855 Keller, R., Khan, M. A., Morgan, P., et al., 1991, A Comparative Study of the Rio Grande and Kenya rifts, Tectonophys.,
ARM - Firearm Training and Authorization List
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AlaskaFirearm Training and Authorization List NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts Firearm Training and Authorization List As of November 5, 2007 Name Affiliation Firearms Safety Training (FST 100) Firearms Safety Training Refresher (FST 100R) Standard First Aid Training (MED 102) Heartsaver CPR
Improved approximate formulas for flux from cylindrical and rectangular sources
Wallace, O.J.; Bokharee, S.A.
1993-03-01
This report provides two new approximate formulas for the flux at detector points outside the radial and axial extensions of a homogeneous cylindrical source and improved approximate formulas for the flux at points opposite rectangular surface sources. These formulas extend the range of geometries for which analytic approximations may be used by shield design engineers to make rapid scoping studies and check more extensive calculations for reasonableness. These formulas can be used to support skeptical, independent evaluations and are also valuable teaching tools for introducing shield designers to complex shield analyses.
Communication: Improved pair approximations in local coupled-cluster methods
Schwilk, Max; Werner, Hans-Joachim; Usvyat, Denis
2015-03-28
In local coupled cluster treatments the electron pairs can be classified according to the magnitude of their energy contributions or distances into strong, close, weak, and distant pairs. Different approximations are introduced for the latter three classes. In this communication, an improved simplified treatment of close and weak pairs is proposed, which is based on long-range cancellations of individually slowly decaying contributions in the amplitude equations. Benchmark calculations for correlation, reaction, and activation energies demonstrate that these approximations work extremely well, while pair approximations based on local second-order Møller-Plesset theory can lead to errors that are 1-2 orders of magnitude larger.
Aerosol mobility size spectrometer
Wang, Jian; Kulkarni, Pramod
2007-11-20
A device for measuring aerosol size distribution within a sample containing aerosol particles. The device generally includes a spectrometer housing defining an interior chamber and a camera for recording aerosol size streams exiting the chamber. The housing includes an inlet for introducing a flow medium into the chamber in a flow direction, an aerosol injection port adjacent the inlet for introducing a charged aerosol sample into the chamber, a separation section for applying an electric field to the aerosol sample across the flow direction and an outlet opposite the inlet. In the separation section, the aerosol sample becomes entrained in the flow medium and the aerosol particles within the aerosol sample are separated by size into a plurality of aerosol flow streams under the influence of the electric field. The camera is disposed adjacent the housing outlet for optically detecting a relative position of at least one aerosol flow stream exiting the outlet and for optically detecting the number of aerosol particles within the at least one aerosol flow stream.
Summary of Time Period-Based and Other Approximation Methods...
U.S. Department of Energy (DOE) - all webpages (Extended Search)
... updates previous work that describes time period-based and other approximation methods for estimating the capacity value of wind power and extends it to include solar power 1, 2. ...
Exact and approximate Kohn-Sham potentials in ensemble density...
Office of Scientific and Technical Information (OSTI)
Title: Exact and approximate Kohn-Sham potentials in ensemble density-functional theory Authors: Yang, Zeng-hui ; Trail, John R. ; Pribram-Jones, Aurora ; Burke, Kieron ; Needs, ...
Second post-Newtonian approximation of Einstein-aether theory
Xie Yi; Huang Tianyi
2008-06-15
In this paper, second post-Newtonian approximation of Einstein-aether theory is obtained by Chandrasekhar's approach. Five parametrized post-Newtonian parameters in first post-Newtonian approximation are presented after a time transformation and they are identical with previous works, in which {gamma}=1, {beta}=1, and two preferred-frame parameters remain. Meanwhile, in second post-Newtonian approximation, a parameter, which represents third order nonlinearity for gravity, is zero--the same as in general relativity. For an application for future deep space laser ranging missions, we reduce the metric coefficients for light propagation in a case of N point masses as a simplified model of the Solar System. The resulting light deflection angle in second post-Newtonian approximation poses another constraint on the Einstein-aether theory.
Integral approximations to classical diffusion and smoothed particle hydrodynamics
Du, Qiang; Lehoucq, R. B.; Tartakovsky, A. M.
2014-12-31
The contribution of the paper is the approximation of a classical diffusion operator by an integral equation with a volume constraint. A particular focus is on classical diffusion problems associated with Neumann boundary conditions. By exploiting this approximation, we can also approximate other quantities such as the flux out of a domain. Our analysis of the model equation on the continuum level is closely related to the recent work on nonlocal diffusion and peridynamic mechanics. In particular, we elucidate the role of a volumetric constraint as an approximation to a classical Neumann boundary condition in the presence of physical boundary.more » The volume-constrained integral equation then provides the basis for accurate and robust discretization methods. As a result, an immediate application is to the understanding and improvement of the Smoothed Particle Hydrodynamics (SPH) method.« less
Berkel, M. van; Hogeweij, G. M. D.; Tamura, N.; Ida, K.; Zwart, H. J.; Inagaki, S.; Baar, M. R. de
2014-11-15
In this paper, a number of new explicit approximations are introduced to estimate the perturbative diffusivity (χ), convectivity (V), and damping (τ) in a cylindrical geometry. For this purpose, the harmonic components of heat waves induced by localized deposition of modulated power are used. The approximations are based upon the heat equation in a semi-infinite cylindrical domain. The approximations are based upon continued fractions, asymptotic expansions, and multiple harmonics. The relative error for the different derived approximations is presented for different values of frequency, transport coefficients, and dimensionless radius. Moreover, it is shown how combinations of different explicit formulas can yield good approximations over a wide parameter space for different cases, such as no convection and damping, only damping, and both convection and damping. This paper is the second part (Part II) of a series of three papers. In Part I, the semi-infinite slab approximations have been treated. In Part III, cylindrical approximations are treated for heat waves traveling towards the center of the plasma.
Summation by Parts Finite Difference Approximations for Seismic...
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Country of Publication: United States Language: English Subject: 97 MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE Word Cloud More Like This Full Text preview image File size N...
CITSS Configurable Item List: COTS Software | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Configurable Item List: COTS Software CITSS Configurable Item List: COTS Software CITSS Configurable Item List: COTS Software CITSS Configurable Item List: COTS Software (44.56 KB) More Documents & Publications CITSS Project Plan CITSS Project Plan Software Configuration Management Plan
Technology Forum Map and List of Awardees' Posters and Exhibits |
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Department of Energy Technology Forum Map and List of Awardees' Posters and Exhibits Technology Forum Map and List of Awardees' Posters and Exhibits Technology Forum map and list of exhibits.pdf (600.73 KB) More Documents & Publications 2014 SunShot Summit Awardee Poster List Download the Final Agenda 2014 SunShot Initiative Peer Review Report
Privacy Act Officers Contact List | Department of Energy
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Privacy Act Officers Contact List Privacy Act Officers Contact List Privacy_Contact_Listing_08.2016.docx (22.38 KB) More Documents & Publications Technical Standards Managers Contact List DOE-TSL-2-2002 Diversity Employment and Recruitment Sources
Berkel, M. van; Zwart, H. J.; Tamura, N.; Ida, K.; Hogeweij, G. M. D.; Inagaki, S.; Baar, M. R. de
2014-11-15
In this paper, a number of new approximations are introduced to estimate the perturbative diffusivity (χ), convectivity (V), and damping (τ) in cylindrical geometry. For this purpose, the harmonic components of heat waves induced by localized deposition of modulated power are used. The approximations are based on semi-infinite slab approximations of the heat equation. The main result is the approximation of χ under the influence of V and τ based on the phase of two harmonics making the estimate less sensitive to calibration errors. To understand why the slab approximations can estimate χ well in cylindrical geometry, the relationships between heat transport models in slab and cylindrical geometry are studied. In addition, the relationship between amplitude and phase with respect to their derivatives, used to estimate χ, is discussed. The results are presented in terms of the relative error for the different derived approximations for different values of frequency, transport coefficients, and dimensionless radius. The approximations show a significant region in which χ, V, and τ can be estimated well, but also regions in which the error is large. Also, it is shown that some compensation is necessary to estimate V and τ in a cylindrical geometry. On the other hand, errors resulting from the simplified assumptions are also discussed showing that estimating realistic values for V and τ based on infinite domains will be difficult in practice. This paper is the first part (Part I) of a series of three papers. In Part II and Part III, cylindrical approximations based directly on semi-infinite cylindrical domain (outward propagating heat pulses) and inward propagating heat pulses in a cylindrical domain, respectively, will be treated.
Variational principles with Pad approximants for tearing mode analysis
Cole, Andrew J.; Finn, John M.
2014-03-15
Tearing modes occur in several distinct physical regimes, and it is often important to compute the inner layer response for these modes with various effects. There is a need for an approximate and efficient method of solving the inner layer equations in all these regimes. In this paper, we introduce a method of solving the inner layer equations based on using a variational principle with Pad approximants. For all the regimes considered, the main layer equations to be solved are inhomogeneous, and Pad approximants give a convenient and efficient method of satisfying the correct asymptotic behavior at the edge of the layer. Results using this variational principlePad approximant method in three of these regimes is presented. These regimes are the constant-? resistive-inertial (RI) regime, the constant-? viscoresistive regime, and the non-constant-? inviscid tearing regime. The last regime includes the constant-? RI regime and the inertial regime. The results show that reasonable accuracy can be obtained very efficiently with Pad approximants having a small number of parameters.
Massive neutrinos in cosmology: Analytic solutions and fluid approximation
Shoji, Masatoshi; Komatsu, Eiichiro
2010-06-15
We study the evolution of linear density fluctuations of free-streaming massive neutrinos at redshift of z<1000, with an explicit justification on the use of a fluid approximation. We solve the collisionless Boltzmann equation in an Einstein de-Sitter (EdS) universe, truncating the Boltzmann hierarchy at l{sub max}=1 and 2, and compare the resulting density contrast of neutrinos {delta}{sub {nu}}{sup fluid} with that of the exact solutions of the Boltzmann equation that we derive in this paper. Roughly speaking, the fluid approximation is accurate if neutrinos were already nonrelativistic when the neutrino density fluctuation of a given wave number entered the horizon. We find that the fluid approximation is accurate at subpercent levels for massive neutrinos with m{sub {nu}>}0.05 eV at the scale of k < or approx. 1.0h Mpc{sup -1} and redshift of z<100. This result validates the use of the fluid approximation, at least for the most massive species of neutrinos suggested by the neutrino oscillation experiments. We also find that the density contrast calculated from fluid equations (i.e., continuity and Euler equations) becomes a better approximation at a lower redshift, and the accuracy can be further improved by including an anisotropic stress term in the Euler equation. The anisotropic stress term effectively increases the pressure term by a factor of 9/5.
EECBG SEP Attachment 1 - Process metric list | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
SEP Attachment 1 - Process metric list EECBG SEP Attachment 1 - Process metric list Reporting Guidance Process Metric List eecbg_10_07b_sep__10_006a_attachment1_process_metric_list.pdf (93.56 KB) More Documents & Publications EECBG 10-07C/SEP 10-006B Attachment 1: Process Metrics List EECBG Program Notice 10-07A DOE Recovery Act Reporting Requirements for the State Energy Program
Systems Analysis Workshop List of Attendees | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
List of Attendees Systems Analysis Workshop List of Attendees List of Attendees from DOE Systems Analysis Workshop held in Washington, D.C. July 28-29, 2004 to discuss and define role of systems analysis in DOE Hydrogen Program. saw_attendee_list.pdf (142.41 KB) More Documents & Publications Systems Analysis Workshop Agenda 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure Final List of Attendees DOE and FreedomCAR and Fuel Partnership Analysis Workshop
Foiles, Stephen Martin
2011-10-01
The predictions of binary collision approximation (BCA) and molecular dynamics (MD) simulations of displacement cascades in GaAs are compared. There are three issues addressed in this work. The first is the optimal choice of the effective displacement threshold to use in the BCA calculations to obtain the best agreement with MD results. Second, the spatial correlations of point defects are compared. This is related to the level of clustering that occurs for different types of radiation. Finally, the size and structure of amorphous zones seen in the MD simulations is summarized. BCA simulations are not able to predict the formation of amorphous material.
Fokker-Planck approximation of monoenergetic transport processes
Boergers, C.; Larsen, E.W.
1994-12-31
For transport problems with highly forward-peaked scattering, the transport equation is often approximated by the Fokker-Planck equation or, if large-angle scattering is deemed sufficiently important, by the Boltzmann-Fokker-Planck equation. In this paper, we state a simple, necessary, and sufficient condition for the validity of the simpler Fokker-Planck approximation for monoenergetic particle transport. We also show that for screened Rutherford scattering, the Fokker-Planck approximation is only marginally valid and is inaccurate unless the scattering is extremely forward peaked. (The same is true for more sophisticated models of elastic scattering of charged particles. In this paper, we restrict ourselves to screened Rutherford scattering for simplicity). More details on the results presented here will be given in forthcoming publications.
Tank waste remediation system risk management list
Collard, L.B.
1995-10-31
The Tank Waste Remedation System (TWRS) Risk Management List and it`s subset of critical risks, the Critical Risk Management List, provide a tool to senior RL and WHC management (Level-1 and -2) to manage programmatic risks that may significantly impact the TWRS program. The programmatic risks include cost, schedule, and performance risks. Performance risk includes technical risk, supportability risk (such as maintainability and availability), and external risk (i.e., beyond program control, for example, changes in regulations). The risk information includes a description, its impacts, as evaluation of the likelihood, consequences and risk value, possible mitigating actions, and responsible RL and WHC managers. The issues that typically form the basis for the risks are presented in a separate table and the affected functions are provided on the management lists.
On the approximation of crack shapes found during inservice inspection
Bhate, S.R.; Chawla, D.S.; Kushwaha, H.S.
1997-04-01
This paper addresses the characterization of axial internal flaw found during inservice inspection of a pipe. J-integral distribution for various flaw shapes is obtained using line spring finite, element method. The peak J-value and its distribution across the crack is found to be characteristic feature of each shape. The triangular shape yields peak J-value away from the center, the point of depth. The elliptic approximation results in large overestimate of J-value for unsymmetric flaws. Triangular approximation is recommended for such flaws so that further service can be obtained from the component.
Trigonometric Pade approximants for functions with regularly decreasing Fourier coefficients
Labych, Yuliya A; Starovoitov, Alexander P [Gomel State University, Gomel (Belarus)
2009-08-31
Sufficient conditions describing the regular decrease of the coefficients of a Fourier series f(x)=a{sub 0}/2 + {sigma} a{sub n} cos kx are found which ensure that the trigonometric Pade approximants {pi}{sup t}{sub n,m}(x;f) converge to the function f in the uniform norm at a rate which coincides asymptotically with the highest possible one. The results obtained are applied to problems dealing with finding sharp constants for rational approximations. Bibliography: 31 titles.
Laboratory Equipment Donation Program - OPMO Address List
Office of Scientific and Technical Information (OSTI)
OPMO Listing OPMO contact information is listed below. Please refer to your "LEDP Grantee Application Result" e-mail for the name of the OPMO who approved your application. Ernest J. Baier Western Area Power Administration OPMO-DOE/WAPA 1800 S. Rio Grande Ave. Montrose, Colorado 81401 970-240-6248 Baier@wapa.gov Bickler@wapa.gov John Bargo (Authorized) National Energy Technology Laboratory U.S. Department of Energy P.O. Box 880, 3610 Collins Ferry Rd. Morgantown, WV 26507-0880
On the mathematical treatment of the Born-Oppenheimer approximation
Jecko, Thierry
2014-05-15
Motivated by the paper by Sutcliffe and Woolley [“On the quantum theory of molecules,” J. Chem. Phys. 137, 22A544 (2012)], we present the main ideas used by mathematicians to show the accuracy of the Born-Oppenheimer approximation for molecules. Based on mathematical works on this approximation for molecular bound states, in scattering theory, in resonance theory, and for short time evolution, we give an overview of some rigorous results obtained up to now. We also point out the main difficulties mathematicians are trying to overcome and speculate on further developments. The mathematical approach does not fit exactly to the common use of the approximation in Physics and Chemistry. We criticize the latter and comment on the differences, contributing in this way to the discussion on the Born-Oppenheimer approximation initiated by Sutcliffe and Woolley. The paper neither contains mathematical statements nor proofs. Instead, we try to make accessible mathematically rigourous results on the subject to researchers in Quantum Chemistry or Physics.
Hyperspherical Sparse Approximation Techniques for High-Dimensional Discontinuity Detection
Zhang, Guannan; Webster, Clayton G.; Gunzburger, Max; Burkardt, John
2016-08-04
This work proposes a hyperspherical sparse approximation framework for detecting jump discontinuities in functions in high-dimensional spaces. The need for a novel approach results from the theoretical and computational inefficiencies of well-known approaches, such as adaptive sparse grids, for discontinuity detection. Our approach constructs the hyperspherical coordinate representation of the discontinuity surface of a function. Then sparse approximations of the transformed function are built in the hyperspherical coordinate system, with values at each point estimated by solving a one-dimensional discontinuity detection problem. Due to the smoothness of the hypersurface, the new technique can identify jump discontinuities with significantly reduced computationalmore » cost, compared to existing methods. Several approaches are used to approximate the transformed discontinuity surface in the hyperspherical system, including adaptive sparse grid and radial basis function interpolation, discrete least squares projection, and compressed sensing approximation. Moreover, hierarchical acceleration techniques are also incorporated to further reduce the overall complexity. In conclusion, rigorous complexity analyses of the new methods are provided, as are several numerical examples that illustrate the effectiveness of our approach.« less
Approximations of very weak solutions to boundary-value problems.
Berggren, Martin Olof
2003-03-01
Standard weak solutions to the Poisson problem on a bounded domain have square-integrable derivatives, which limits the admissible regularity of inhomogeneous data. The concept of solution may be further weakened in order to define solutions when data is rough, such as for inhomogeneous Dirichlet data that is only square-integrable over the boundary. Such very weak solutions satisfy a nonstandard variational form (u, v) = G(v). A Galerkin approximation combined with an approximation of the right-hand side G defines a finite-element approximation of the very weak solution. Applying conforming linear elements leads to a discrete solution equivalent to the text-book finite-element solution to the Poisson problem in which the boundary data is approximated by L{sub 2}-projections. The L{sub 2} convergence rate of the discrete solution is O(h{sub s}) for some s {element_of} (0,1/2) that depends on the shape of the domain, asserting a polygonal (two-dimensional) or polyhedral (three-dimensional) domain without slits and (only) square-integrable boundary data.
Thermal effects and sudden decay approximation in the curvaton scenario
Kitajima, Naoya; Takesako, Tomohiro; Yokoyama, Shuichiro; Langlois, David; Takahashi, Tomo E-mail: langlois@apc.univ-paris7.fr E-mail: takesako@icrr.u-tokyo.ac.jp
2014-10-01
We study the impact of a temperature-dependent curvaton decay rate on the primordial curvature perturbation generated in the curvaton scenario. Using the familiar sudden decay approximation, we obtain an analytical expression for the curvature perturbation after the decay of the curvaton. We then investigate numerically the evolution of the background and of the perturbations during the decay. We first show that the instantaneous transfer coefficient, related to the curvaton energy fraction at the decay, can be extended into a more general parameter, which depends on the net transfer of the curvaton energy into radiation energy or, equivalently, on the total entropy ratio after the complete curvaton decay. We then compute the curvature perturbation and compare this result with the sudden decay approximation prediction.
Data approximation using a blending type spline construction
Dalmo, Rune; Bratlie, Jostein
2014-11-18
Generalized expo-rational B-splines (GERBS) is a blending type spline construction where local functions at each knot are blended together by C{sup k}-smooth basis functions. One way of approximating discrete regular data using GERBS is by partitioning the data set into subsets and fit a local function to each subset. Partitioning and fitting strategies can be devised such that important or interesting data points are interpolated in order to preserve certain features. We present a method for fitting discrete data using a tensor product GERBS construction. The method is based on detection of feature points using differential geometry. Derivatives, which are necessary for feature point detection and used to construct local surface patches, are approximated from the discrete data using finite differences.
Doorway states in the random-phase approximation
De Pace, A.; Molinari, A.; Weidenmüller, H.A.
2014-12-15
By coupling a doorway state to a sea of random background states, we develop the theory of doorway states in the framework of the random-phase approximation (RPA). Because of the symmetry of the RPA equations, that theory is radically different from the standard description of doorway states in the shell model. We derive the Pastur equation in the limit of large matrix dimension and show that the results agree with those of matrix diagonalization in large spaces. The complexity of the Pastur equation does not allow for an analytical approach that would approximately describe the doorway state. Our numerical results display unexpected features: The coupling of the doorway state with states of opposite energy leads to strong mutual attraction.
Crossing contours in the interacting boson approximation (IBA) symmetry triangle
McCutchan, E. A.; Casten, R. F.
2006-11-15
Constant contours of basic observables are discussed in the context of the interacting boson approximation (IBA) symmetry triangle. Contours that exhibit orthogonal crossing within the triangle are presented as a method for determining a set of parameter values for a particular nucleus and trajectories for isotopic chains. A set of contours that highlights a class of nuclei that are outside the two-parameter IBA-1 Hamitonian space is also presented.
The Monte Carlo Independent Column Approximation Model Intercomparison
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Project (McMIP) 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
COMPLEXITY & APPROXIMABILITY OF QUANTIFIED & STOCHASTIC CONSTRAINT SATISFACTION PROBLEMS
H. B. HUNT; M. V. MARATHE; R. E. STEARNS
2001-06-01
Let D be an arbitrary (not necessarily finite) nonempty set, let C be a finite set of constant symbols denoting arbitrary elements of D, and let S and T be an arbitrary finite set of finite-arity relations on D. We denote the problem of determining the satisfiability of finite conjunctions of relations in S applied to variables (to variables and symbols in C) by SAT(S) (by SATc(S).) Here, we study simultaneously the complexity of decision, counting, maximization and approximate maximization problems, for unquantified, quantified and stochastically quantified formulas. We present simple yet general techniques to characterize simultaneously, the complexity or efficient approximability of a number of versions/variants of the problems SAT(S), Q-SAT(S), S-SAT(S),MAX-Q-SAT(S) etc., for many different such D,C,S,T. These versions/variants include decision, counting, maximization and approximate maximization problems, for unquantified, quantified and stochastically quantified formulas. Our unified approach is based on the following two basic concepts: (i) strongly-local replacements/reductions and (ii) relational/algebraic representability. Some of the results extend the earlier results in [Pa85,LMP99,CF+93,CF+94] Our techniques and results reported here also provide significant steps towards obtaining dichotomy theorems, for a number of the problems above, including the problems MAX-Q-SAT(S), and MAX-S-SAT(S). The discovery of such dichotomy theorems, for unquantified formulas, has received significant recent attention in the literature [CF+93, CF+94, Cr95, KSW97]. Keywords: NP-hardness; Approximation Algorithms; PSPACE-hardness; Quantified and Stochastic Constraint Satisfaction Problems.
Aggelen, Helen van; Department of Chemistry, Duke University, Durham, North Carolina 27708 ; Yang, Yang; Yang, Weitao
2014-05-14
Despite their unmatched success for many applications, commonly used local, semi-local, and hybrid density functionals still face challenges when it comes to describing long-range interactions, static correlation, and electron delocalization. Density functionals of both the occupied and virtual orbitals are able to address these problems. The particle-hole (ph-) Random Phase Approximation (RPA), a functional of occupied and virtual orbitals, has recently known a revival within the density functional theory community. Following up on an idea introduced in our recent communication [H. van Aggelen, Y. Yang, and W. Yang, Phys. Rev. A 88, 030501 (2013)], we formulate more general adiabatic connections for the correlation energy in terms of pairing matrix fluctuations described by the particle-particle (pp-) propagator. With numerical examples of the pp-RPA, the lowest-order approximation to the pp-propagator, we illustrate the potential of density functional approximations based on pairing matrix fluctuations. The pp-RPA is size-extensive, self-interaction free, fully anti-symmetric, describes the strong static correlation limit in H{sub 2}, and eliminates delocalization errors in H{sub 2}{sup +} and other single-bond systems. It gives surprisingly good non-bonded interaction energies competitive with the ph-RPA with the correct R{sup ?6} asymptotic decay as a function of the separation R, which we argue is mainly attributable to its correct second-order energy term. While the pp-RPA tends to underestimate absolute correlation energies, it gives good relative energies: much better atomization energies than the ph-RPA, as it has no tendency to underbind, and reaction energies of similar quality. The adiabatic connection in terms of pairing matrix fluctuation paves the way for promising new density functional approximations.
PART III LIST OF DOCUMENTS, EXHIBITS, AND OTHER ATTACHMENTS
National Nuclear Security Administration (NNSA)
Page 130 PART III - LIST OF DOCUMENTS, EXHIBITS, AND OTHER ATTACHMENTS SECTION J LIST OF APPENDICES - TABLE OF CONTENTS Appendix A Statement of Work Appendix B Award Fee Plan ...
Part III - List of Documents, Exhibits, and Other Attachments
National Nuclear Security Administration (NNSA)
Updated 93015 to Mod 0588 Contract No. DE-AC04-94AL85000 Modification No. M202 Section J - Page 1 Part III - List of Documents, Exhibits, and Other Attachments Section J LIST OF ...
List of Solar Thermal Electric Incentives | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
List of Solar Thermal Electric Incentives Jump to: navigation, search The following contains the list of 562 Solar Thermal Electric Incentives. CSV (rows 1-500) CSV (rows 501-562)...
List of Topics for Interagency Performance & Risk Assessment...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
& Risk Assessment Community of Practice (P&RA CoP) Discussion List of Topics for Interagency Performance & Risk Assessment Community of Practice (P&RA CoP) Discussion List of ...
RFI Released to Compile Teaming Partner List for Upcoming BENEFIT...
RFI Released to Compile Teaming Partner List for Upcoming BENEFIT FOA RFI Released to Compile Teaming Partner List for Upcoming BENEFIT FOA September 29, 2015 - 10:43am Addthis...
Utah Sensitive Species List Webpage | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
Species List Webpage Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Utah Sensitive Species List Webpage Abstract Provides access to Utah Sensitive...
CCC Federal License and Permit List | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
CCC Federal License and Permit List Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: CCC Federal License and Permit ListLegal Abstract...
E85 UL Listed Equipment | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
E85 UL Listed Equipment E85 UL Listed Equipment This PDF demonstrates the Underwriters Laboratorys (ULs) approval of the E85 Pump and its implications. It provides background ...
Public Meeting Attendee List: Sustainable Design Standards for Federal
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Buildings | Department of Energy Attendee List: Sustainable Design Standards for Federal Buildings Public Meeting Attendee List: Sustainable Design Standards for Federal Buildings This document is an attendee list for the public meeting to discuss sustainable design standards for Federal buildings held on July 28, 2010. Download the public meeting attendee list. (43.68 KB) More Documents & Publications Directory of Potential Stakeholders for DOE Actions under NEPA (DOE, 2016) Diversity
2016 National Cleanup Workshop Registrant List | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
National Cleanup Workshop Registrant List 2016 National Cleanup Workshop Registrant List Attendees to the 2016 National Cleanup Workshop held on Sept. 14-15, 2016, at the Hilton Alexandria Mark Center in Alexandria, Va. 2016 National Cleanup Workshop Registrant List (407.59 KB) More Documents & Publications Welcome - Opening Remarks 2015 U.S. Department of Energy National Cleanup Workshop Registration List Agenda for the 2016 National Cleanup Workshop
Announcing the "Top 10" List of Green Utility Leaders
Find out if your utility made the National Renewable Energy Laboratory's list of top green power programs.
SECTION L -ATTACHMENT B - LISTING OF KEY PERSONNEL
National Nuclear Security Administration (NNSA)
B, Page 1 SECTION L ATTACHMENT B LISTING OF KEY PERSONNEL TITLE NAME Note: Addremove extra rows if needed...
DOE Employee Concerns Program Contact List | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
DOE Employee Concerns Program Contact List DOE Employee Concerns Program Contact List March 21 2016 Employee Concerns Program contact list/information for DOE HQ, field offices and program offices. DOE Employee Concerns Program Contact List (86.76 KB) More Documents & Publications One Year Anniversary, Office of the Ombudsman WBA-15-0001 - In the Matter of Robert J. Schumacher The Role of Ombudsmen in Dispute Resolution
Transportation and Stationary Power Integration Workshop Attendees List |
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Department of Energy Attendees List Transportation and Stationary Power Integration Workshop Attendees List List of attendees for the Transportation and Stationary Power Integration Workshop tspi_attendees.pdf (84.9 KB) More Documents & Publications Transportation and Stationary Power Integration: Workshop Proceedings DOE Fuel Cell Pre-Solicitation Workshop Participants 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure Final List of Attendees
BLM Lists 2011 Priority Renewable Energy Projects | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Lists 2011 Priority Renewable Energy Projects BLM Lists 2011 Priority Renewable Energy Projects March 23, 2011 - 1:54pm Addthis The Bureau of Land Management (BLM) announced on March 8 its 2011 list of 19 priority projects for developing onshore renewable energy on national public lands. The priority list includes nine solar projects, five wind projects, and five geothermal projects throughout the western United States. The solar projects-eight in California and one in Arizona-have a potential
Advanced Biofuels Industry Roundtable - List of Participants | Department
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
of Energy Biofuels Industry Roundtable - List of Participants Advanced Biofuels Industry Roundtable - List of Participants List of Participants from the May 18 Advanced Biofuels Industry Roundtable industry_roundtable_participants.pdf (254.26 KB) More Documents & Publications Biomass 2012 Agenda Bioenergy 2015 Agenda Bioenergy 2015 Speaker Biographies
Comment Listing Response to Draft REEE Solicitation FINAL | Department of
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Energy Comment Listing Response to Draft REEE Solicitation FINAL Comment Listing Response to Draft REEE Solicitation FINAL Comment ListingResponse_REEE Solicitation_final.pdf (566.28 KB) More Documents & Publications Draft Advanced Fossil Energy Projects Solicitation Public Comments Draft Advanced Nuclear Energy Solicitation Public Meeting Presentation DOE-LPO_Email-Update_001_Through_11
CompleteProject List.doc | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
CompleteProject List.doc� CompleteProject List.doc� CompleteProject List.doc� (9.47 KB) More Documents & Publications Tribal Energy Program February 2012 Award Project Descriptions CX-008525: Categorical Exclusion Determination 2010 Program Review Meeting
Symbiosis Conference Speaker and Attendee List | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Conference Speaker and Attendee List Symbiosis Conference Speaker and Attendee List This list outlines the session topics, speakers, and attendees for the Bioenergy Technologies Office's Symbiosis Conference. symbiosis_conference_speaker_agenda.pdf (719.78 KB) More Documents & Publications Symbiosis Biofeedstock Conference: Expanding Commercialization of Mutualistic Microbes to Increase Feedstock Production Symbiosis Conference: Expanding Commercialization of Mutualistic Microbes to Increase
Pore size distribution and accessible pore size distribution...
Office of Scientific and Technical Information (OSTI)
both rank and type (expressed as either hydrogen or vitrinite content) in the size range ... Subject: 01 COAL, LIGNITE, AND PEAT; 03 NATURAL GAS; 08 HYDROGEN; AMBIENT TEMPERATURE; ...
Monticello National Priorities List (NPL) Sites
Office of Legacy Management (LM)
National Priorities List (NPL) Sites Federal Facilities Agreement (FFA) Quarterly Report: January 1 -March 31, 2009 Department of Energy Legacy Management (DOE LM) Site Manager: Jalena Dayvault This repott summarizes current project status and activities implemented during January through March 2009, and prqvides a schedule of planned near term activities for the Monticello Mill Tailings Site (MMTS) and the Monticello Vicinity Properties (MVP) NPL sites. This repmt also includes disposal cell
EECBG SEP Attachment 1 - Process metric list
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
10-07B/SEP 10-006A Attachment 1: Process Metrics List Metric Area Metric Primary or Optional Metric Item(s) to Report On 1. Building Retrofits 1a. Buildings retrofitted, by sector Number of buildings retrofitted Square footage of buildings retrofitted 1b. Energy management systems installed, by sector Number of energy management systems installed Square footage of buildings under management 1c. Building roofs retrofitted, by sector Number of building roofs retrofitted Square footage of building
Symbiosis Conference Speaker and Attendee List
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Speaker and Attendees List | Symbiosis Conference | Department of Energy Hosted Conference Cornell University | Ithaca, NY | June 20-21, 2013 Page 1 of 7 Introduction: Cyd E. Hamilton, AAAS Fellow, Department of Energy (DOE) (10 min) Title: Symbiosis Conference Introduction Summary: Motivation for conference, deliverable from conference, introduction to plenary speakers. Plenary Speaker: John Ferrell, DOE, Bioenergy Technology Office (30 min) Title: The Future of Bioenergy Feedstock
COMPLEXITY&APPROXIMABILITY OF QUANTIFIED&STOCHASTIC CONSTRAINT SATISFACTION PROBLEMS
Hunt, H. B.; Marathe, M. V.; Stearns, R. E.
2001-01-01
Let D be an arbitrary (not necessarily finite) nonempty set, let C be a finite set of constant symbols denoting arbitrary elements of D, and let S and T be an arbitrary finite set of finite-arity relations on D. We denote the problem of determining the satisfiability of finite conjunctions of relations in S applied to variables (to variables and symbols in C) by SAT(S) (by SATc(S).) Here, we study simultaneously the complexity of decision, counting, maximization and approximate maximization problems, for unquantified, quantified and stochastically quantified formulas. We present simple yet general techniques to characterize simultaneously, the complexity or efficient approximability of a number of versions/variants of the problems SAT(S), Q-SAT(S), S-SAT(S),MAX-Q-SAT(S) etc., for many different such D,C ,S, T. These versions/variants include decision, counting, maximization and approximate maximization problems, for unquantified, quantified and stochastically quantified formulas. Our unified approach is based on the following two basic concepts: (i) strongly-local replacements/reductions and (ii) relational/algebraic represent ability. Some of the results extend the earlier results in [Pa85,LMP99,CF+93,CF+94O]u r techniques and results reported here also provide significant steps towards obtaining dichotomy theorems, for a number of the problems above, including the problems MAX-&-SAT( S), and MAX-S-SAT(S). The discovery of such dichotomy theorems, for unquantified formulas, has received significant recent attention in the literature [CF+93,CF+94,Cr95,KSW97
Exploring the Random Phase Approximately for materials chemistry and physics
Ruzsinsky, Adrienn
2015-03-23
This proposal focuses on improved accuracy for the delicate energy differences of interest in materials chemistry with the fully nonlocal random phase approximation (RPA) in a density functional context. Could RPA or RPA-like approaches become standard methods of first-principles electronic-structure calculation for atoms, molecules, solids, surfaces, and nano-structures? Direct RPA includes the full exact exchange energy and a nonlocal correlation energy from the occupied and unoccupied Kohn-Sham orbitals and orbital energies, with an approximate but universal description of long-range van der Waals attraction. RPA also improves upon simple pair-wise interaction potentials or vdW density functional theory. This improvement is essential to capture accurate energy differences in metals and different phases of semiconductors. The applications in this proposal are challenges for the simpler approximations of Kohn-Sham density functional theory, which are part of the current “standard model” for quantum chemistry and condensed matter physics. Within this project we already applied RPA on different structural phase transitions on semiconductors, metals and molecules. Although RPA predicts accurate structural parameters, RPA has proven not equally accurate in all kinds of structural phase transitions. Therefore a correction to RPA can be necessary in many cases. We are currently implementing and testing a nonempirical, spatially nonlocal, frequency-dependent model for the exchange-correlation kernel in the adiabatic-connection fluctuation-dissipation context. This kernel predicts a nearly-exact correlation energy for the electron gas of uniform density. If RPA or RPA-like approaches prove to be reliably accurate, then expected increases in computer power may make them standard in the electronic-structure calculations of the future.
A multilevel approximate projections for incompressible flow calculations
Howell, L.H.
1994-12-31
An adaptive-mesh projection algorithm for unsteady, variable-density, incompressible flow at high Reynolds number has been developed in the Applied Mathematics Group at LLNL. A grid-based refinement scheme combines the theoretical efficiencies of adaptive methods with the computational advantages of uniform grids, while a second-order Godunov method provides a robust and accurate treatment of advection in the presence of discontinuities without excessive dissipation. This paper focuses on the work of the present author concerning the approximate projection itself, which involves the numerical inversion of the operator {del} {center_dot} (1/{rho}){del} on various subsets of the adaptive grid hierarchy.
Multigroup Free-atom Doppler-broadening Approximation. Experiment
Gray, Mark Girard
2015-11-06
The multigroup energy Doppler-broadening approximation agrees with continuous energy Dopplerbroadening generally to within ten percent for the total cross sections of ^{1}H,^{ 56}Fe, and ^{235}U at 250 lanl. Although this is probably not good enough for broadening from room temperature through the entire temperature range in production use, it is better than any interpolation scheme between temperatures proposed to date, and may be good enough for extrapolation from high temperatures. The method deserves further study since additional improvements are possible.
Compton scattering from positronium and validity of the impulse approximation
Kaliman, Z.; Pisk, K.; Pratt, R. H.
2011-05-15
The cross sections for Compton scattering from positronium are calculated in the range from 1 to 100 keV incident photon energy. The calculations are based on the A{sup 2} term of the photon-electron or photon-positron interaction. Unlike in hydrogen, the scattering occurs from two centers and the interference effect plays an important role for energies below 8 keV. Because of the interference, the criterion for validity of the impulse approximation for positronium is more restrictive compared to that for hydrogen.
Structural physical approximations of unphysical maps and generalized quantum measurements
Fiurasek, Jaromir
2002-11-01
We investigate properties of the structural physical approximation (SPA) of the partial transposition map recently introduced by Horodecki and Ekert [Phys. Rev. Lett. 89, 127902 (2002)]. We focus on the case of two-qubit states and show that in this case the map has the structure of a generalized quantum measurement followed by the preparation of a suitable output state. We also introduce SPA for a map that transforms two copies of density matrix of a single qubit onto a square of that matrix. We prove that also this map is essentially a generalized quantum measurement.
A multiscale two-point flux-approximation method
Myner, Olav Lie, Knut-Andreas
2014-10-15
A large number of multiscale finite-volume methods have been developed over the past decade to compute conservative approximations to multiphase flow problems in heterogeneous porous media. In particular, several iterative and algebraic multiscale frameworks that seek to reduce the fine-scale residual towards machine precision have been presented. Common for all such methods is that they rely on a compatible primaldual coarse partition, which makes it challenging to extend them to stratigraphic and unstructured grids. Herein, we propose a general idea for how one can formulate multiscale finite-volume methods using only a primal coarse partition. To this end, we use two key ingredients that are computed numerically: (i) elementary functions that correspond to flow solutions used in transmissibility upscaling, and (ii) partition-of-unity functions used to combine elementary functions into basis functions. We exemplify the idea by deriving a multiscale two-point flux-approximation (MsTPFA) method, which is robust with regards to strong heterogeneities in the permeability field and can easily handle general grids with unstructured fine- and coarse-scale connections. The method can easily be adapted to arbitrary levels of coarsening, and can be used both as a standalone solver and as a preconditioner. Several numerical experiments are presented to demonstrate that the MsTPFA method can be used to solve elliptic pressure problems on a wide variety of geological models in a robust and efficient manner.
ARM - Measurement - Hydrometeor Size Distribution
U.S. Department of Energy (DOE) - all webpages (Extended Search)
of hydrometeors observed in a given size range. Categories Atmospheric State, Cloud Properties Instruments The above measurement is considered scientifically relevant for the...
Glitter-Sized Solar Photovoltaics
Office of Energy Efficiency and Renewable Energy (EERE)
Featured in this photograph are tiny glitter-sized photovoltaic cells, developed by Sandia National Laboratories scientists, that could revolutionize the way solar energy is collected and used....
MULTI-SCALE MODELING AND APPROXIMATION ASSISTED OPTIMIZATION OF BARE TUBE HEAT EXCHANGERS
Bacellar, Daniel; Ling, Jiazhen; Aute, Vikrant; Radermacher, Reinhard; Abdelaziz, Omar
2014-01-01
Air-to-refrigerant heat exchangers are very common in air-conditioning, heat pump and refrigeration applications. In these heat exchangers, there is a great benefit in terms of size, weight, refrigerant charge and heat transfer coefficient, by moving from conventional channel sizes (~ 9mm) to smaller channel sizes (< 5mm). This work investigates new designs for air-to-refrigerant heat exchangers with tube outer diameter ranging from 0.5 to 2.0mm. The goal of this research is to develop and optimize the design of these heat exchangers and compare their performance with existing state of the art designs. The air-side performance of various tube bundle configurations are analyzed using a Parallel Parameterized CFD (PPCFD) technique. PPCFD allows for fast-parametric CFD analyses of various geometries with topology change. Approximation techniques drastically reduce the number of CFD evaluations required during optimization. Maximum Entropy Design method is used for sampling and Kriging method is used for metamodeling. Metamodels are developed for the air-side heat transfer coefficients and pressure drop as a function of tube-bundle dimensions and air velocity. The metamodels are then integrated with an air-to-refrigerant heat exchanger design code. This integration allows a multi-scale analysis of air-side performance heat exchangers including air-to-refrigerant heat transfer and phase change. Overall optimization is carried out using a multi-objective genetic algorithm. The optimal designs found can exhibit 50 percent size reduction, 75 percent decrease in air side pressure drop and doubled air heat transfer coefficients compared to a high performance compact micro channel heat exchanger with same capacity and flow rates.
A lock-free priority queue design based on multi-dimensional linked lists
Dechev, Damian; Zhang, Deli
2015-04-03
The throughput of concurrent priority queues is pivotal to multiprocessor applications such as discrete event simulation, best-first search and task scheduling. Existing lock-free priority queues are mostly based on skiplists, which probabilistically create shortcuts in an ordered list for fast insertion of elements. The use of skiplists eliminates the need of global rebalancing in balanced search trees and ensures logarithmic sequential search time on average, but the worst-case performance is linear with respect to the input size. In this paper, we propose a quiescently consistent lock-free priority queue based on a multi-dimensional list that guarantees worst-case search time of O(logN)more » for key universe of size N. The novel multi-dimensional list (MDList) is composed of nodes that contain multiple links to child nodes arranged by their dimensionality. The insertion operation works by first injectively mapping the scalar key to a high-dimensional vector, then uniquely locating the target position by using the vector as coordinates. Nodes in MDList are ordered by their coordinate prefixes and the ordering property of the data structure is readily maintained during insertion without rebalancing nor randomization. Furthermore, in our experimental evaluation using a micro-benchmark, our priority queue achieves an average of 50% speedup over the state of the art approaches under high concurrency.« less
A lock-free priority queue design based on multi-dimensional linked lists
Dechev, Damian; Zhang, Deli
2015-04-03
The throughput of concurrent priority queues is pivotal to multiprocessor applications such as discrete event simulation, best-first search and task scheduling. Existing lock-free priority queues are mostly based on skiplists, which probabilistically create shortcuts in an ordered list for fast insertion of elements. The use of skiplists eliminates the need of global rebalancing in balanced search trees and ensures logarithmic sequential search time on average, but the worst-case performance is linear with respect to the input size. In this paper, we propose a quiescently consistent lock-free priority queue based on a multi-dimensional list that guarantees worst-case search time of O(logN) for key universe of size N. The novel multi-dimensional list (MDList) is composed of nodes that contain multiple links to child nodes arranged by their dimensionality. The insertion operation works by first injectively mapping the scalar key to a high-dimensional vector, then uniquely locating the target position by using the vector as coordinates. Nodes in MDList are ordered by their coordinate prefixes and the ordering property of the data structure is readily maintained during insertion without rebalancing nor randomization. Furthermore, in our experimental evaluation using a micro-benchmark, our priority queue achieves an average of 50% speedup over the state of the art approaches under high concurrency.
Approximate Weighted Matching On Emerging Manycore and Multithreaded Architectures
Halappanavar, Mahantesh; Feo, John T.; Villa, Oreste; Tumeo, Antonino; Pothen, Alex
2012-11-30
Graph matching is a prototypical combinatorial problem with many applications in computer science and scientific computing, but algorithms for computing optimal matchings are challenging to parallelize. Approximate matching algorithms provide an alternate route for parallelization, and in many contexts compute near-optimal matchings for large-scale graphs. We present sharedmemory parallel implementations for computing half-approximate weighted matching on state-of-the-art multicore (Intel Nehalem and AMD Magny-Cours), manycore (Nvidia Tesla and Nvidia Fermi) and massively multithreaded (Cray XMT) platforms. We provide two implementations: the first implementation uses shared work queues, and is suited to all these platforms; the second implementation is based on dataflow principles, and exploits the architectural features of the Cray XMT. Using a carefully chosen dataset that exhibits characteristics from a wide range of real-world applications, we show scalable performance across different platforms. In particular, for one instance of the input, an R-MAT graph (RMAT-G), we show speedups of: about 32 on 48 cores of an AMD Magny-Cours; 7 on 8 cores of Intel Nehalem; 3 on Nvidia Tesla and 10 on Nvidia Fermi relative to one core of Intel Nehalem; and 60 on 128 processors of Cray XMT. We demonstrate good weak and strong scaling for graphs with up to a billion edges using up to 12, 800 threads. Given the breadth of this work, we focus on simplicity and portability of software rather than excessive fine-tuning for each platform. To the best of our knowledge, this is the first such large-scale study of the half-approximate weighted matching problem on shared-memory platforms. Driven by the critical enabling role of combinatorial algorithms such as matching in scientific computing and the emergence of informatics applications, there is a growing demand to support irregular computations on current and future computing platforms. In this context, we evaluate the capability
Bonatsos, Dennis; Karampagia, S.; Casten, R. F.
2011-05-15
Using a contraction of the SU(3) algebra to the algebra of the rigid rotator in the large-boson-number limit of the interacting boson approximation (IBA) model, a line is found inside the symmetry triangle of the IBA, along which the SU(3) symmetry is preserved. The line extends from the SU(3) vertex to near the critical line of the first-order shape/phase transition separating the spherical and prolate deformed phases, and it lies within the Alhassid-Whelan arc of regularity, the unique valley of regularity connecting the SU(3) and U(5) vertices in the midst of chaotic regions. In addition to providing an explanation for the existence of the arc of regularity, the present line represents an example of an analytically determined approximate symmetry in the interior of the symmetry triangle of the IBA. The method is applicable to algebraic models possessing subalgebras amenable to contraction. This condition is equivalent to algebras in which the equilibrium ground state and its rotational band become energetically isolated from intrinsic excitations, as typified by deformed solutions to the IBA for large numbers of valence nucleons.
Surface wake in the random-phase approximation
Garcia de Abajo, F.J. ); Echenique, P.M. )
1993-11-01
The scalar-electric-potential distribution set up by an ion traveling in the vicinity of a plane solid-vacuum interface, that is, the surface-wake potential, is investigated with the specular-reflection model to describe the response of the surface and with the random-phase approximation for the dielectric function of the bulk material. This permits us to address the study of the low-velocity surface wake: the static potential is found to have a dip at the position of the ion; that dip is shifted towards the direction opposite to the velocity vector for velocities smaller than the threshold of creation of plasmons ([approx]1.3[ital v][sub [ital F
Above-threshold ionization beyond the dipole approximation
Klaiber, Michael; Hatsagortsyan, Karen Z.; Keitel, Christoph H.
2005-03-01
A generalization of the analytical theory of above-threshold ionization in the single active electron approximation is developed while taking into account leading non-dipole and relativistic corrections in the starting Hamiltonian. Special interest is placed on the high energy part of the photoelectron spectrum which consists of a plateau and a characteristic cutoff. It is shown that the correction due to the magnetic component of the laser field gives rise to a decrease of the plateau height, an increase of the maximal cutoff energy, and a drift of the emitted electrons in propagation direction of the laser field. Furthermore, the influence of the relativistic mass shift may become non-neglible by reducing the cutoff energy significantly. Spin effects or the Zitterbewegung play a comparably minor role in the investigated parameter regime of suboptical frequencies and high but not ultra-high laser intensities.
Mixed series in ultraspherical polynomials and their approximation properties
Sharapudinov, I I
2003-04-30
New (mixed) series in ultraspherical polynomials P{sub n}{sup {alpha}}{sup ,{alpha}}(x) are introduced. The basic difference between a mixed series in the polynomials P{sub n}{sup {alpha}}{sup ,{alpha}}(x) and a Fourier series in the same polynomials is as follows: a mixed series contains terms of the form (2{sup r}f{sub r,k}{sup {alpha}})/(k+2{alpha}){sup [r]}) P{sub k+r}{sup {alpha}}{sup -r,{alpha}}{sup -r}(x), where 1{<=}r is an integer and f{sub r,k}{sup {alpha}} is the kth Fourier coefficient of the derivative f{sup (r)}(x) with respect to the ultraspherical polynomials P{sub k}{sup {alpha}}{sup ,{alpha}}(x). It is shown that the partial sums Y{sub n+2r}{sup {alpha}}(f,x) of a mixed series in the polynomial P{sub k}{sup {alpha}}{sup ,{alpha}}(x) contrast favourably with Fourier sums S{sub n}{sup {alpha}}(f,x) in the same polynomials as regards their approximation properties in classes of differentiable and analytic functions, and also in classes of functions of variable smoothness. In particular, the Y{sub n+2r}{sup {alpha}}(f,x) can be used for the simultaneous approximation of a function f(x) and its derivatives of orders up to (r- 1), whereas the S{sub n}{sup {alpha}}(f,x) are not suitable for this purpose.
Listed waste determination report. Environmental characterization
Not Available
1993-06-01
On September 23, 1988, the US Environmental Protection Agency (EPA) published a notice clarifying interim status requirements for the management of radioactive mixed waste thereby subjecting the Idaho National Engineering Laboratory (INEL) and other applicable Department of Energy (DOE) sites to regulation under the Resource Conservation and Recovery Act (RCRA). Therefore, the DOE was required to submit a Part A Permit application for each treatment, storage, and disposal (TSD) unit within the INEL, defining the waste codes and processes to be regulated under RCRA. The September 1990 revised Part A Permit application, that was approved by the State of Idaho identified 101 potential acute and toxic hazardous waste codes (F-, P-, and U- listed wastes according to 40 CFR 261.31 and 40 CFR 261.33) for some TSD units at the Idaho Chemical Processing Plant. Most of these waste were assumed to have been introduced into the High-level Liquid Waste TSD units via laboratory drains connected to the Process Equipment Waste (PEW) evaporator (PEW system). At that time, a detailed and systematic evaluation of hazardous chemical use and disposal practices had not been conducted to determine if F-, P-, or Unlisted waste had been disposed to the PEW system. The purpose of this investigation was to perform a systematic and detailed evaluation of the use and disposal of the 101 F-, P-, and Unlisted chemicals found in the approved September 1990 Part A Permit application. This investigation was aimed at determining which listed wastes, as defined in 40 CFR 261.31 (F-listed) and 261.33 (P & Unlisted) were discharged to the PEW system. Results of this investigation will be used to support revisions to the RCRA Part A Permit application.
DPC List - DOE Directives, Delegations, and Requirements
U.S. Department of Energy (DOE) - all webpages (Extended Search)
DPC List by Patricia Greeson Headquarters Field/ Operations Offices Contractors DPC Email address Telephone AR Adam Goldstein adam.goldstein@hq.doe.gov 202-287-1061 AU Cecelia Kenney cecelia.kenney@hq.doe.gov 202-586-4399 CF John Wall john.wall@hq.doe.gov 202-586-5728 CI Daniel Woomer daniel.woomer@hq.doe.gov 202-586-9886 CTA/CNS Bud Danielson bud.danielson@em.doe.gov 301-903-2954 EA (Enterprise Assessment) Sharon Edge-Harley sharon.edge-harley@hq.doe.gov 202-586-9275 ED Teresa Watts
LNG fleet increases in size and capabilities
Linser, H.J. Jr.; Drudy, M.J.; Endrizzi, F.; Urbanelli, A.A.
1997-06-02
The LNG fleet as of early 1997 consisted of 99 vessels with total cargo capacity of 10.7 million cu m, equivalent to approximately 4.5 million tons. One of the newest additions to the fleet, the 137,000-cu m tanker Al Zubarah, is five times the size of the original commercial vessel Methane Princess. Al Zubarah`s first loading of more than 60,000 tons occurred in December 1996 for deliver to Japanese buyers from the newly commissioned Qatargas LNG plant at Ras Laffan. That size cargo contains enough clean-burning energy to heat 60,000 homes in Japan for 1 month. Measuring nearly 1,000 ft long, the tanker is among the largest in the industry fleet and joined 70 other vessels of more than 100,000 cu m. Most LNG tankers built since 1975 have been larger-capacity vessels. The paper discusses LNG shipping requirements, containment systems, vessel design, propulsion, construction, operations and maintenance, and the future for larger vessels.
Quasichemical analysis of the cluster-pair approximation for the thermodynamics of proton hydration
Pollard, Travis; Beck, Thomas L.
2014-06-14
A theoretical analysis of the cluster-pair approximation (CPA) is presented based on the quasichemical theory of solutions. The sought single-ion hydration free energy of the proton includes an interfacial potential contribution by definition. It is shown, however, that the CPA involves an extra-thermodynamic assumption that does not guarantee uniform convergence to a bulk free energy value with increasing cluster size. A numerical test of the CPA is performed using the classical polarizable AMOEBA force field and supporting quantum chemical calculations. The enthalpy and free energy differences are computed for the kosmotropic Na{sup +}/F{sup −} ion pair in water clusters of size n = 5, 25, 105. Additional calculations are performed for the chaotropic Rb{sup +}/I{sup −} ion pair. A small shift in the proton hydration free energy and a larger shift in the hydration enthalpy, relative to the CPA values, are predicted based on the n = 105 simulations. The shifts arise from a combination of sequential hydration and interfacial potential effects. The AMOEBA and quantum chemical results suggest an electrochemical surface potential of water in the range −0.4 to −0.5 V. The physical content of single-ion free energies and implications for ion-water force field development are also discussed.
Zeroth-order regular approximation approach to molecular parity violation
Berger, Robert; Langermann, Norbert; Wuellen, Christoph van
2005-04-01
We present an ab initio (quasirelativistic) two-component approach to the computation of molecular parity-violating effects which is based on the zeroth-order regular approximation (ZORA). As a first application, we compute the parity-violating energy differences between various P and M conformations of C{sub 2}-symmetric molecules belonging to the series H{sub 2}X{sub 2} with X=O, S, Se, Te, Po. The results are compared to previously reported (relativistic) four-component Dirac-Hartree-Fock-Coulomb (DHFC) data. Relative deviations between ZORA and DHFC values are well below 2% for diselane and the heavier homologs whereas somewhat larger relative deviations are observed for the lighter homologs. The larger deviations for lighter systems are attributed to the (nonlocal) exchange terms coupling large and small components, which have been neglected in the present ZORA implementation. For heavier systems these play a minor role, which explains the good performance of the ZORA approach. An excellent performance, even for lighter systems, is expected for a related density-functional-theory-based ZORA because then the exchange terms coupling large and small components are absent.
Method for sizing hollow microspheres
Farnum, E.H.; Fries, R.J.
1975-10-29
Hollow Microspheres may be effectively sized by placing them beneath a screen stack completely immersed in an ultrasonic bath containing a liquid having a density at which the microspheres float and ultrasonically agitating the bath.
Hanford Advisory Board and Committee Lists - Hanford Site
U.S. Department of Energy (DOE) - all webpages (Extended Search)
HAB and Committee Lists Hanford Advisory Board Convening Report SSAB Guidance Memorandum of Understanding Membership Nomination and Appointment Process Operating Ground Rules Calendars Advice and Responses Full Board Meeting Information Committee Meeting Information Outgoing Board Correspondence Key Board Products and Special Reports HAB Annual Report HAB and Committee Lists Points of Contact Related Links Hanford Advisory Board and Committee Lists Email Email Page | Print Print Page | Text
List of Major Information Systems,National Nuclear Security Administration
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
ADaPT Networked: | Department of Energy List of Major Information Systems,National Nuclear Security Administration ADaPT Networked: List of Major Information Systems,National Nuclear Security Administration ADaPT Networked: List of Major Information Systems, Defense Line of Business National Nuclear Security Administration ADaPT Networked: Develops and deploys emerging information networking technology to production processes in support of the U.S. nuclear weapons stockpile. National Nuclear
PART III -LIST OF DOCUMENTS, EXHIBITS, AND OTHER ATTACHMENTS
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Occupational Medical Services at Hanford J-2-1 Section J Attachment J-2 LIST OF APPLICABLE DOE DIRECTIVES - LIST B The DOE Directives listed below contain requirements relevant to the scope of work under this contract. In most cases, the requirements applicable to the Contractor are contained in the Contractor Requirement Document attached to the DOE directive. These directives are applicable, in whole or in part, in accordance with Section I Clause entitled "DEAR 970.5204-2 LAWS,
PART III LIST OF DOCUMENTS, EXHIBITS, AND OTHER ATTACHMENTS
National Nuclear Security Administration (NNSA)
Page 130 PART III - LIST OF DOCUMENTS, EXHIBITS, AND OTHER ATTACHMENTS SECTION J LIST OF APPENDICES - TABLE OF CONTENTS Appendix A Statement of Work Appendix B Award Fee Plan Appendix C Transition Plan Appendix D Sensitive Foreign Nations Control Appendix E Performance Guarantee Agreement(s) Appendix F List of Applicable Directives Appendix G Personnel Appendix Appendix H Key Personnel Appendix I Small Business Subcontracting Plan Appendix J Diversity Plan Guidance Appendix K Program Management
"List of Covered Electric Utilities" under the Public Utility...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
PDF icon "List of Covered Electric Utilities" under the Public Utility Regulatory Policies ... Public Utility Regulatory Policies Act of 1978 (PURPA) as Applicable to the Energy Policy ...
Jefferson Lab's Newest Cluster Makes Top500 List of Fastest
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Supercomputers | Jefferson Lab Newest Cluster Makes Top500 List of Fastest Supercomputers Jefferson Lab's Newest Cluster Makes Top500 List of Fastest Supercomputers NEWPORT NEWS, VA, November 16, 2016 - For the third time in its history, Thomas Jefferson National Accelerator Facility is home to one of the world's 500 fastest supercomputers. The SciPhi-XVI supercomputer was just listed as a TOP500 Supercomputer Site on November 14, placing 397th on the 48th edition of the list of the world's
Bio Yankuang Hong Kong Listed | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
Yankuang Hong Kong Listed Place: China Product: Joint Venture for the manufacturing, marketing, deployment and participation in the operation of at least 1,300 of Biosphere...
Notice of Availability of a Preliminary List of Standby Power...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
and Testing Guidelines, Federal Register, 66 FR 67517, December 31, 2001 Notice of Availability of a Preliminary List of Standby Power Products and Testing Guidelines, Federal ...
Listing of DOE/FE Authorizations Issued in 2013 | Department...
Listing of DOEFE Authorizations Issued in 2013 The following chart contains all Orders issued by the Office of Natural Gas Regulatory Activities in 2013 thru December 19. The ...
Listing of Defense Nuclear Facilities | Department of Energy
Energy.gov [DOE] (indexed site)
Attachment 1 - Listing of Defense Nuclear Facilities (55.77 KB) More Documents & Publications Draft Policy and Planning Guidance for Community Transition Activities Workforce ...
LEDSGP/contacts/AFOLU List Serve | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
LEDSGPcontactsAFOLU List Serve < LEDSGP Jump to: navigation, search LEDS AFOLU Working Group @ Global Environment Centre, 2nd Floor, Wisma Hing, 78, Jalan SS272, 47300 Petaling...
LEDS Collaboration in Action Workshop Attendee List | Open Energy...
OpenEI (Open Energy Information) [EERE & EIA]
LEDS Collaboration in Action Workshop Attendee List (Redirected from LEDS Collaboration in Action Workshop Participating Countries) Jump to: navigation, search Low Emission...
Part III - List of Documents, Exhibits, and Other Attachments
National Nuclear Security Administration (NNSA)
... Dynamac will provide comprehensive environmental investigation, regulatory compliance, ... HUBZone SB, SDB, and WOSB source lists, guides, and other data for soliciting ...
ORIS: the Oak Ridge Imaging System program listings. [Nuclear...
Office of Scientific and Technical Information (OSTI)
program listings. Nuclear medicine imaging with rectilinear scanner and gamma camera Citation Details In-Document Search Title: ORIS: the Oak Ridge Imaging System program...
ORIS: the Oak Ridge Imaging System program listings. [Nuclear...
Office of Scientific and Technical Information (OSTI)
program listings. Nuclear medicine imaging with rectilinear scanner and gamma camera Bell, P. R.; Dougherty, J. M. 62 RADIOLOGY AND NUCLEAR MEDICINE; 46 INSTRUMENTATION RELATED...
List of Passive Solar Space Heat Incentives | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
Solar Space Heat Incentives Jump to: navigation, search The following contains the list of 282 Passive Solar Space Heat Incentives. CSV (rows 1 - 282) Incentive Incentive Type...
DOE Fuel Cell Pre-Solicitiation Workshop Participants List |...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Participants List for DOE Fuel Cell Pre-Solicitiation Workshop - Sheraton Denver West Hotel, 360 Union Boulevard, Lakewood, CO - March 16-17, 2010 fuelcellpre-solicitationpartici...
DOE Fuel Cell Pre-Solicitiation Workshop Participants List
Office of Energy Efficiency and Renewable Energy (EERE)
Participants List for DOE Fuel Cell Pre-Solicitiation Workshop - Sheraton Denver West Hotel, 360 Union Boulevard, Lakewood, CO - March 16-17, 2010
California Endangered Species Act Species List | Open Energy...
OpenEI (Open Energy Information) [EERE & EIA]
California Endangered Species Act Species List Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: California Endangered Species Act...
Sequoia ranked third in TOP500 list | National Nuclear Security...
National Nuclear Security Administration (NNSA)
according to the industry-standard Top500 list. Sequoia, which recently completed its transition to classified computing in support of NNSA's Stockpile Stewardship Program,...
"List of Covered Electric Utilities" under the Public Utility...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
6 Revised "List of Covered Electric Utilities" under the Public Utility Regulatory Policies Act of 1978 (PURPA) - 2006 Revised Under Title I of the Public Utility Regulatory...
New Mexico Air Operating Permit List of Trivial Activities |...
OpenEI (Open Energy Information) [EERE & EIA]
Operating Permit List of Trivial Activities Author New Mexico Environment Department - Air Quality Bureau Published New Mexico Environment Department - Air Quality Bureau, 2008...
List of Publications from the Energy for Development and Poverty...
OpenEI (Open Energy Information) [EERE & EIA]
Publications from the Energy for Development and Poverty Reduction Website Jump to: navigation, search Tool Summary LAUNCH TOOL Name: List of Publications from the Energy for...
"List of Covered Electric Utilities" under the Public Utility...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
"List of Covered Electric Utilities" under the Public Utility Regulatory Policies Act of 1978 (PURPA) - 2009 Under Title I, Sec. 102(c) of the Public Utility Regulatory Policies ...
Battery and Electric Drive Awardee List from American Recovery...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Awardee List from American Recovery and Reinvestment Act funding Battery and Electric ... and their components and to expand battery recycling capacity 500 million in grants ...
EV Everywhere Grand Challenge- Battery Workshop attendees list
Attendance list for the EV Everywhere Grand Challenge: Battery Workshop on July 26, 2012 held at the Doubletree O'Hare, Chicago, IL.
Oregon State Endangered Species List | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
to library Web Site: Oregon State Endangered Species List Author Oregon Department of Fish and Wildlife Published State of Oregon, Date Not Provided DOI Not Provided Check for...
Washington State Species of Concern Lists | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
Web Site: Washington State Species of Concern Lists Author Washington Department of Fish & Wildlife Published State of Washington, Date Not Provided DOI Not Provided Check for...
BLM - Western BLM Bird Species of Conservation Concern List ...
OpenEI (Open Energy Information) [EERE & EIA]
BLM - Western BLM Bird Species of Conservation Concern List Jump to: navigation, search OpenEI Reference LibraryAdd to library PermittingRegulatory Guidance - Checklist: BLM -...
Part VII: Section J - List of Documents, Exhibits, and Other...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
III SECTION J LIST OF DOCUMENTS, EXHIBITS, AND OTHER ATTACHMENTS TABLE OF CONTENTS ......... 55 Attachment J Performance Evaluation And Measurement Plan ...
Headmark List of Suspect Counterfeit Fasteners 1992 | Department...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
PDF icon Headmark List of Suspect Counterfeit Fasteners 1992 More Documents & Publications SuspectCounterfeit Items Awareness Training Manual National Historic Preservation Act ...
NNSA Computers Lead Global List | National Nuclear Security Administra...
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Computers Lead Global List | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering...
SECTION L -ATTACHMENT B - LISTING OF KEY PERSONNEL
National Nuclear Security Administration (NNSA)
B, Page 1 SECTION L ATTACHMENT B LISTING OF KEY PERSONNEL TITLE NAME [Note: Add/remove extra rows if needed]
combined_supplemental_hud_multifamily_weatherization_list_3-2...
Energy.gov [DOE] (indexed site)
lihtc.xls More Documents & Publications list2eligiblemultifamilybuildings10-cfr-440-22b4ii.xls rdmfhlowandverylow.xls hudlist-1...
Laser Incident Lessons Learned and Action List (Technical Report...
Office of Scientific and Technical Information (OSTI)
Laser Incident Lessons Learned and Action List Citation Details In-Document Search Title: ... output into two work areas in which qualified operators conduct research experiments. ...
Laser Incident Lessons Learned and Action List (Technical Report...
Office of Scientific and Technical Information (OSTI)
Title: Laser Incident Lessons Learned and Action List You are accessing a document from ... output into two work areas in which qualified operators conduct research experiments. ...
Markov Jump Processes Approximating a Non-Symmetric Generalized Diffusion
Limic, Nedzad
2011-08-15
Consider a non-symmetric generalized diffusion X( Dot-Operator ) in Double-Struck-Capital-R {sup d} determined by the differential operator A(x) = -{Sigma}{sub ij} {partial_derivative}{sub i}a{sub ij}(x){partial_derivative}{sub j} + {Sigma}{sub i} b{sub i}(x){partial_derivative}{sub i}. In this paper the diffusion process is approximated by Markov jump processes X{sub n}( Dot-Operator ), in homogeneous and isotropic grids G{sub n} Subset-Of Double-Struck-Capital-R {sup d}, which converge in distribution in the Skorokhod space D([0,{infinity}), Double-Struck-Capital-R {sup d}) to the diffusion X( Dot-Operator ). The generators of X{sub n}( Dot-Operator ) are constructed explicitly. Due to the homogeneity and isotropy of grids, the proposed method for d{>=}3 can be applied to processes for which the diffusion tensor {l_brace}a{sub ij}(x){r_brace}{sub 11}{sup dd} fulfills an additional condition. The proposed construction offers a simple method for simulation of sample paths of non-symmetric generalized diffusion. Simulations are carried out in terms of jump processes X{sub n}( Dot-Operator ). For piece-wise constant functions a{sub ij} on Double-Struck-Capital-R {sup d} and piece-wise continuous functions a{sub ij} on Double-Struck-Capital-R {sup 2} the construction and principal algorithm are described enabling an easy implementation into a computer code.
UMTRA project list of reportable occurrences
Not Available
1994-04-01
This UMTRA Project List of Reportable occurrences is provided to facilitate efficient categorization of reportable occurrences. These guidelines have been established in compliance with DOE minimum reporting requirements under DOE Order 5000.3B. Occurrences are arranged into nine groups relating to US Department of Energy (DOE) Uranium Mill Tailings Remedial Action (UMTRA) Project operations for active sites. These nine groupings are provided for reference to determined whether an occurrence meets reporting requirement criteria in accordance with the minimum reporting requirements. Event groups and significance categories that cannot or will not occur, and that do not apply to UMTRA Project operations, are omitted. Occurrence categorization shall be as follows: Group 1. Facility Condition; Group 2. Environmental; Group 3. Personnel Safety; Group 4. Personnel Radiation Protection; Group 5. Safeguards and Security; Group 6. Transportation; Group 7. Value Basis Reporting; Group 8. Facility Status; and Group 9. Cross-Category Items.
Property List for RO Code '37', EDI
U.S. Department of Energy (DOE) - all webpages (Extended Search)
8/12 Property List for RO Code '37', EDI 1 Total Property Cost BARCODE DESCRIPTION MFR. MODEL_NO SN COST BLDG ROOM 0000001264 15HP AIR COMPRESSOR CHAMPION 15WTS55A WTS-A4358 $12,000.00 OFF ROCKS 0000001262 15HP AIR COMPRESSOR CHAMPION 15WTS55A WTS-A4786 $20,000.00 OFF ROCKS 0000001265 15HP COMPRESSOR CHAMPION 15WTS55A WTS-A-4133 $12,000.00 OFF ROCKS 0000001261 50HP COMPRESSOR (OIL KOBELCO KNWAO/B-H 02H0338 $50,000.00 OFF ROCKS 0199329 ANALYZER POWER QUALI DRANETZ TECH IN 658 NA020C034 $14,445.66
Upcoming H2USA Workshop: Hydrogen Fueling Station Component Listings
H2USA will host an online workshop about hydrogen fueling station component listings on April 22 from 2 to 3:30 p.m. Eastern Daylight Time. This workshop will focus on the need for components for hydrogen fueling stations to be listed by Nationally Recognized Testing Laboratories (NRTLs).
DOE employee listed among area’s rising leaders
Office of Energy Efficiency and Renewable Energy (EERE)
Earlier this year, the Greater Knoxville Business Journal compiled a list of East Tennessee’s top rising business and community leaders under the age of 40. The 2014 listing featured Heather Cloar, a contacting officer with the Energy Department in Oak Ridge.
Computerized Instrumented Residential Audit (CIRA) source listings
Not Available
1983-04-01
CIRA is a set of computer programs to predict the energy consumption of small buildings. It can also provide an optimized list of improvements which reduce energy use. A 30 page booklet (Pub-425 Revised) explaining CIRA inputs, outputs, and calculation methods is available at no cost through the Technical Information Department, Lawrence Berkeley Laboratory, University of California, Berkeley, CA 94720. It includes an order form for disk copies of the program and for the CIRA Reference Manual. The source code in BASIC contained in this document is provided to help a user adapt the program to a particular application, or to see details of the calculation algorithms. (The engineering basis of the algorithms may be found in the CIRA Reference Manual). The programs are written in Microsoft BASIC-80, and for the version of CIRA normally distributed they are compiled on the Microsoft BASIC-80 compiler version 5.30. They are designed to run with the CP/M operating system, version 2.2.
Master equipment list -- Phase 1. Revision 1
Jech, J.B.
1995-04-28
The purpose of this document is to define the system requirements for the Master Equipment List (MEL) Phase 1 project. The intended audience for this document includes Data Automation Engineering (DAE), Configuration Management Improvement and Control Engineering (CMI and CE), Data Administration Council (DAC), and Tank Waste Remedial System (TWRS) personnel. The intent of Phase 1 is to develop a user-friendly system to support the immediate needs of the TWRS labeling program. Phase 1 will provide CMI and CE the ability to administrate, distribute, and maintain key information generated by the labeling program. CMI and CE is assigning new Equipment Identification Numbers (EINs) to selected equipment in Tank Farms per the TWRS Data Standard ``Tank Farm Equipment Identification Number``. The MEL Phase 1 system will be a multi-user system available through the HLAN network. It will provide basic functions such as view, query, and report, edit, data entry, password access control, administration and change control. The scope of Phase 1 data will encompass all Tank Farm Equipment identified by the labeling program. The data will consist of fields from the labeling program`s working database, relational key references and pointers, safety class information, and field verification data.
Ramakrishnan, Raghunathan; Rauhut, Guntram
2015-04-21
Semi-quartic force fields (QFF) rely on a Taylor-expansion of the multi-dimensional Born-Oppenheimer potential energy surface (PES) and are frequently used within the calculation of anharmonic vibrational frequencies based on 2nd order vibrational perturbation theory (VPT2). As such they are usually determined by differentiation of the electronic energy with respect to the nuclear coordinates. Alternatively, potential energy surfaces can be expanded in terms of multi-mode expansions, which typically do not require any derivative techniques. The computational effort to retrieve QFF from size-reduced multi-mode expansions has been studied and has been compared with standard Taylor-expansions. As multi-mode expansions allow for the convenient introduction of subtle approximations, these will be discussed in some detail. In addition, a preliminary study about the applicability of a generalized Duschinsky transformation to QFFs is provided. This transformation allows for the efficient evaluation of VPT2 frequencies of isotopologues from the PES of the parent compound and thus avoids the recalculation of PESs in different axes systems.
Discrete Dipole Approximation for Low-Energy Photoelectron Emission from NaCl Nanoparticles
Berg, Matthew J.; Wilson, Kevin R.; Sorensen, Chris; Chakrabarti, Amit; Ahmed, Musahid
2011-09-22
This work presents a model for the photoemission of electrons from sodium chloride nanoparticles 50-500 nm in size, illuminated by vacuum ultraviolet light with energy ranging from 9.4-10.9 eV. The discrete dipole approximation is used to calculate the electromagnetic field inside the particles, from which the two-dimensional angular distribution of emitted electrons is simulated. The emission is found to favor the particle?s geometrically illuminated side, and this asymmetry is compared to previous measurements performed at the Lawrence Berkeley National Laboratory. By modeling the nanoparticles as spheres, the Berkeley group is able to semi-quantitatively account for the observed asymmetry. Here however, the particles are modeled as cubes, which is closer to their actual shape, and the interaction of an emitted electron with the particle surface is also considered. The end result shows that the emission asymmetry for these low-energy electrons is more sensitive to the particle-surface interaction than to the specific particle shape, i.e., a sphere or cube.
Ewert, D.P.; Almond, S.W.; Blerhaus, W.M. II )
1991-05-01
Successful remedial cementing has historically been difficult in wells with large-interval, multizone, gravel-packed completions. The reason is the inability of conventional oilfield cements to penetrate gravel packs adequately. Small-particle-size cement (SPSC) was developed to penetrate gravel packs and to provide the zonal isolation required. This paper details the laboratory work, job design, and field implementation of this new cement.
Strategy Guideline: HVAC Equipment Sizing
Burdick, A.
2012-02-01
The heating, ventilation, and air conditioning (HVAC) system is arguably the most complex system installed in a house and is a substantial component of the total house energy use. A right-sized HVAC system will provide the desired occupant comfort and will run efficiently. This Strategy Guideline discusses the information needed to initially select the equipment for a properly designed HVAC system. Right-sizing of an HVAC system involves the selection of equipment and the design of the air distribution system to meet the accurate predicted heating and cooling loads of the house. Right-sizing the HVAC system begins with an accurate understanding of the heating and cooling loads on a space; however, a full HVAC design involves more than just the load estimate calculation - the load calculation is the first step of the iterative HVAC design procedure. This guide describes the equipment selection of a split system air conditioner and furnace for an example house in Chicago, IL as well as a heat pump system for an example house in Orlando, Florida. The required heating and cooling load information for the two example houses was developed in the Department of Energy Building America Strategy Guideline: Accurate Heating and Cooling Load Calculations.
DOE-STD-1104-2014 Master Acronym List | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Master Acronym List DOE-STD-1104-2014 Master Acronym List February 4, 2015 DOE-STD-1104 Master Acronyms List. This document provides a Master Acronyms List of terms used in DOE-STD-1104. DOE-STD-1104-2014 Master Acronym List (38.47 KB) More Documents & Publications DOE-STD-1104-2014 Training Master Acronym List for DOE-STD-3009-2014 Requirements Crosswalk of DOE-STD-1104-2014
Creating a word list for technical and clerical personnel
Hammond, J S
1988-05-01
The Savannah River Plant and Laboratory employ more than 16,000 people. When the separate Publications Divisions of the Plant and Laboratory were combined it was determined that a single source of information for using terms was needed, and that the source would take the form of a word list. The Word List was issued to more than 5000 employees onsite. In addition, the Word List is being added to the site computer network as a reference document and as an online spelling checker where more than 2000 employees will have access to it through their personal computers.
DOE TRANSCOM Technical Support Services DE-EM0002903 SECTION J - LIST OF ATTACHMENTS
U.S. Department of Energy (DOE) - all webpages (Extended Search)
4 GOVERNMENT FURNISHED PROPERTY AND INFORMATION LIST * Government Furnished Property and Information List is subject to change prior to period of performance.
WPN 11-9: Updated Guidance on Eligible Multifamily Property Listings...
9: Updated Guidance on Eligible Multifamily Property Listings for Use in the Weatherization Assistance Program WPN 11-9: Updated Guidance on Eligible Multifamily Property Listings...
Widget:EiJoinList | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
EiJoinList Jump to: navigation, search Description This widget creates a join form on a page. Visitors can fill in the short form and the request will be sent to openei.orgapp...
List of Solar Energy Incentives | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
Incentives Jump to: navigation, search The following contains the list of 1794 Solar Energy Incentives. CSV (rows 1-500) CSV (rows 501-1000) CSV (rows 1001-1500) CSV (rows...
List of Solar Space Heat Incentives | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
Heat Incentives Jump to: navigation, search The following contains the list of 512 Solar Space Heat Incentives. CSV (rows 1-500) CSV (rows 501-512) Incentive Incentive Type...
List of Water Heaters Incentives | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
Heaters Incentives Jump to: navigation, search The following contains the list of 975 Water Heaters Incentives. CSV (rows 1-500) CSV (rows 501-975) Incentive Incentive Type Place...
List of Companies in Biofuels Sector | Open Energy Information
OpenEI (Open Energy Information) [EERE & EIA]
List of Companies in Biofuels Sector Jump to: navigation, search BiomassImage.JPG Companies in the Biofuels sector: Add a Company Download CSV (rows 1-256) Map of Biofuels...
Title 40 CFR 261 Identification and Listing of Hazardous Waste...
OpenEI (Open Energy Information) [EERE & EIA]
1 Identification and Listing of Hazardous Waste Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- Federal RegulationFederal Regulation: Title 40...
EV Everywhere Grand Challenge - Battery Workshop attendees list...
Energy.gov [DOE] (indexed site)
Attendance list for the EV Everywhere Grand Challenge: Battery Workshop on July 26, 2012 held at the Doubletree OHare, Chicago, IL. companiesinattendanceb.pdf (149.45 KB) More ...
Capital Asset Project List_rev1.xls
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
... by DOE Order 413.3B, Program and Project Management for the Acquisition of Capital Assets. ... Start of Operations or Project Completion Capital Asset Project List 1152016 1 of 1
OpenEI API listing | OpenEI Community
OpenEI (Open Energy Information) [EERE & EIA]
strategy conversation just this week, and we spoke somewhat indirectly about a list of energy APIs on OpenEI. We have the Energy Hackathon Resource page, but I want to draw energy...
Approximate models for the ion-kinetic regime in inertial-confinement-fusion capsule implosions
Hoffman, Nelson M.; Zimmerman, George B.; Molvig, Kim; Rinderknecht, Hans G.; Rosenberg, Michael J.; Albright, B. J.; Simakov, Andrei N.; Sio, Hong; Zylstra, Alex B.; Johnson, Maria Gatu; et al
2015-05-19
“Reduced” (i.e., simplified or approximate) ion-kinetic (RIK) models in radiation-hydrodynamic simulations permit a useful description of inertial-confinement-fusion (ICF) implosions where kinetic deviations from hydrodynamic behavior are important. For implosions in or near the kinetic regime (i.e., when ion mean free paths are comparable to the capsule size), simulations using a RIK model give a detailed picture of the time- and space-dependent structure of imploding capsules, allow an assessment of the relative importance of various kinetic processes during the implosion, enable explanations of past and current observations, and permit predictions of the results of future experiments. The RIK simulation method describedmore » here uses moment-based reduced kinetic models for transport of mass, momentum, and energy by long-mean-free-path ions, a model for the decrease of fusion reactivity owing to the associated modification of the ion distribution function, and a model of hydrodynamic turbulent mixing. The transport models are based on local gradient-diffusion approximations for the transport of moments of the ion distribution functions, with coefficients to impose flux limiting or account for transport modification. After calibration against a reference set of ICF implosions spanning the hydrodynamic-to-kinetic transition, the method has useful, quantifiable predictive ability over a broad range of capsule parameter space. Calibrated RIK simulations show that an important contributor to ion species separation in ICF capsule implosions is the preferential flux of longer-mean-free-path species out of the fuel and into the shell, leaving the fuel relatively enriched in species with shorter mean free paths. Also, the transport of ion thermal energy is enhanced in the kinetic regime, causing the fuel region to have a more uniform, lower ion temperature, extending over a larger volume, than implied by clean simulations. We expect that the success of our simple
Approximate models for the ion-kinetic regime in inertial-confinement-fusion capsule implosions
Hoffman, Nelson M.; Zimmerman, George B.; Molvig, Kim; Rinderknecht, Hans G.; Rosenberg, Michael J.; Albright, B. J.; Simakov, Andrei N.; Sio, Hong; Zylstra, Alex B.; Johnson, Maria Gatu; Séguin, Fredrick H.; Frenje, Johan A.; Li, C. K.; Petrasso, Richard D.; Higdon, David M.; Srinivasan, Gowri; Glebov, Vladimir Yu.; Stoeckl, Christian; Seka, Wolf; Sangster, T. Craig
2015-05-19
“Reduced” (i.e., simplified or approximate) ion-kinetic (RIK) models in radiation-hydrodynamic simulations permit a useful description of inertial-confinement-fusion (ICF) implosions where kinetic deviations from hydrodynamic behavior are important. For implosions in or near the kinetic regime (i.e., when ion mean free paths are comparable to the capsule size), simulations using a RIK model give a detailed picture of the time- and space-dependent structure of imploding capsules, allow an assessment of the relative importance of various kinetic processes during the implosion, enable explanations of past and current observations, and permit predictions of the results of future experiments. The RIK simulation method described here uses moment-based reduced kinetic models for transport of mass, momentum, and energy by long-mean-free-path ions, a model for the decrease of fusion reactivity owing to the associated modification of the ion distribution function, and a model of hydrodynamic turbulent mixing. The transport models are based on local gradient-diffusion approximations for the transport of moments of the ion distribution functions, with coefficients to impose flux limiting or account for transport modification. After calibration against a reference set of ICF implosions spanning the hydrodynamic-to-kinetic transition, the method has useful, quantifiable predictive ability over a broad range of capsule parameter space. Calibrated RIK simulations show that an important contributor to ion species separation in ICF capsule implosions is the preferential flux of longer-mean-free-path species out of the fuel and into the shell, leaving the fuel relatively enriched in species with shorter mean free paths. Also, the transport of ion thermal energy is enhanced in the kinetic regime, causing the fuel region to have a more uniform, lower ion temperature, extending over a larger volume, than implied by clean simulations. We expect that the success of our simple approach
Wind Career Map: Resource List | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Career Map: Resource List Wind Career Map: Resource List The following resources were used in the development of the Wind Career Map, associated job profile information, or are potential resources for interested Wind Career Map viewers. Competencies for Careers in Renewable Energy Together with the Department of Labor, the Office of Energy Efficiency and Renewable Energy developed a comprehensive Renewable Energy Competency Model that includes wind energy job skills and knowledge as one of
Certification and Listing Process and Procedures Workshop | Department of
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Energy Certification and Listing Process and Procedures Workshop Certification and Listing Process and Procedures Workshop Slides from the U.S. Department of Energy Hydrogen Component and System Qualification Workshop held November 4, 2010 in Livermore, CA. csqw_mahnken.pdf (246.25 KB) More Documents & Publications Component and System Qualification Workshop Proceedings CSA International Certification Discussion Hydrogen Technology Workshop U.S. Department of Energy Onboard Storage Tank
Fuel Cell Product Certification/Listing Lessons Learned | Department of
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Energy Product Certification/Listing Lessons Learned Fuel Cell Product Certification/Listing Lessons Learned Slides from the U.S. Department of Energy Hydrogen Component and System Qualification Workshop held November 4, 2010 in Livermore, CA. csqw_radley.pdf (832.63 KB) More Documents & Publications Component and System Qualification Workshop Proceedings The Fuel Cell Mobile Light Project - A DOE Market Transformation Activity CSA International Certification Discussion Hydrogen
POLICY GUIDANCE MEMORANDUM #13 Reemployment Priority List Selections |
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Department of Energy 3 Reemployment Priority List Selections POLICY GUIDANCE MEMORANDUM #13 Reemployment Priority List Selections The Department's RPL is designed to provide priority consideration to employees who have lost their jobs through reduction in force, or who have fully recovered from a compensable injury after more than 1 year. Employees may only receive priority consideration for positions that they are well-qualified for and that are in the local commuting area from which
Teaming Partner List Available for the Innovative Composites Institute FOA
Office of Energy Efficiency and Renewable Energy (EERE)
AMO is compiling a Teaming Partner List to facilitate the formation of new project teams for the Funding Opportunity Announcement (FOA) for the Advanced Composites Manufacturing Innovation Institute. This opportunity is focused on low-cost, energy efficient manufacturing and recycling of advanced fiber-reinforced polymer composites. See the FOA for instructions on how to be added to the Teaming Partner List. Slides and a transcript of an informational webinar on the FOA are now available.
Medication List - September 14, 2010 | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Medication List - September 14, 2010 Medication List - September 14, 2010 September 14, 2010 This scale is created to provide a guide for the physician determination of ability to work for HRP certified persons with certain conditions and while taking certain medications. This scale is created to provide a guide for the physician determination of ability to work for HRP certified persons with certain conditions and while taking certain medications. This is meant to be a reference to induce some
HUD Multifamily Property Listings Eligible for Weatherization Assistance |
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Department of Energy HUD Multifamily Property Listings Eligible for Weatherization Assistance HUD Multifamily Property Listings Eligible for Weatherization Assistance February 23, 2016 - 4:29pm Addthis Housing and Urban Development (HUD) multifamily properties eligible for weatherization assistance. On January 25, 2010, the Department of Energy (DOE) implemented rule 71-CFR-3847 for its Weatherization Assistance Program (WAP). Under the rule, if a public housing, assisted multi-family or Low
Top 500 List Recognizes Fastest Supercomputers | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
00 List Recognizes Fastest Supercomputers Top 500 List Recognizes Fastest Supercomputers June 30, 2014 - 5:25pm Addthis Titan 1 of 4 Titan Oak Ridge National Laboratory's Titan has a theoretical peak performance of more than 27 petaflops, or more than 27 quadrillion calculations per second. This enables researchers across the scientific arena, from materials to climate change to astrophysics, to acquire unparalleled accuracy in their simulations and achieve research breakthroughs more rapidly
Oil and gas field code master list, 1993
Not Available
1993-12-16
This document contains data collected through October 1993 and provides standardized field name spellings and codes for all identified oil and/or gas fields in the United States. Other Federal and State government agencies, as well as industry, use the EIA Oil and Gas Field Code Master List as the standard for field identification. A machine-readable version of the Oil and Gas Field Code Master List is available from the National Technical Information Service.
Weatherization Memorandum 016: Multifamily Housing - HUD Lists | Department
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
of Energy Memorandum 016: Multifamily Housing - HUD Lists Weatherization Memorandum 016: Multifamily Housing - HUD Lists Effective: May 31, 2016 This memorandum serves to transmit updated information to the WAP network on current buildings identified by the U.S. Department of Housing and Urban Development (HUD) and published by the U.S. Department of Energy (DOE) that meet certain income eligibility requirements and may meet other WAP requirements without the need for further evaluation or
U.S. Department of Energy (DOE) - all webpages (Extended Search)
space, get 33%-50% power savings Implemented These Ideas in Crayon System Crayon Software Architecture Cairo is a standard, widely-used graphics API Firefox, Graphviz, Poppler, ......
Using the depth-velocity-size diagram to interpret equilibrium bed configurations in river flows
Southard, J.B. (Massachusetts Institute of Technology, Cambridge, MA (USA))
1990-05-01
Data from flume studies that report equilibrium bed configuration as well as water temperature, flow depth, flow velocity, and sediment size were used to develop the best approximation to the relationships among the various bed phases (ripples, dunes, lower regime plane bed, upper regime plane bed, and antidunes) in a three-axis graph (depth-velocity-size diagram) with dimensionless measures of mean flow depth, mean flow velocity, and sediment size along the axis. Relationships are shown in a series of depth-velocity and velocity-size sections through the diagram. Boundaries between bed-phase stability fields are drawn as surfaces that minimize, misplacement of data points. A large subset of the data, for which reliable values of bed shear stress are reported, was also used to represent the stability relationships in a graph of dimensionless boundary shear stress against dimensionless sediment size, but with results less useful for fluvial flow interpretation. The diagram covers about one order of magnitude in flow depth. To be useful for river flows, the diagram must be extrapolated in flow depth by about one more order of magnitude, but this is not a serious problem for approximate work. The depth-velocity-size diagram permits prediction of equilibrium bed configuration in river flows when the approximate flow depth and mean flow velocity are known. Because the diagram is essentially dimensionless, the effect of water temperature (via the fluid viscosity) on the bed configuration is easily accounted for by use of the diagram.
THE STICKINESS OF MICROMETER-SIZED WATER-ICE PARTICLES
Gundlach, B.; Blum, J.
2015-01-01
Water ice is one of the most abundant materials in dense molecular clouds and in the outer reaches of protoplanetary disks. In contrast to other materials (e.g., silicates), water ice is assumed to be stickier due to its higher specific surface energy, leading to faster or more efficient growth in mutual collisions. However, experiments investigating the stickiness of water ice have been scarce, particularly in the astrophysically relevant micrometer-sized region and at low temperatures. In this work, we present an experimental setup to grow aggregates composed of ?m-sized water-ice particles, which we used to measure the sticking and erosion thresholds of the ice particles at different temperatures between 114 K and 260 K. We show with our experiments that for low temperatures (below ?210 K), ?m-sized water-ice particles stick below a threshold velocity of 9.6 m s{sup 1}, which is approximately 10times higher than the sticking threshold of ?m-sized silica particles. Furthermore, erosion of the grown ice aggregates is observed for velocities above 15.3 m s{sup 1}. A comparison of the experimentally derived sticking threshold with model predictions is performed to determine important material properties of water ice, i.e., the specific surface energy and the viscous relaxation time. Our experimental results indicate that the presence of water ice in the outer reaches of protoplanetary disks can enhance the growth of planetesimals by direct sticking of particles.
Nodal approximations of varying order by energy group for solving the diffusion equation
Broda, J.T.
1992-02-01
The neutron flux across the nuclear reactor core is of interest to reactor designers and others. The diffusion equation, an integro-differential equation in space and energy, is commonly used to determine the flux level. However, the solution of a simplified version of this equation when automated is very time consuming. Since the flux level changes with time, in general, this calculation must be made repeatedly. Therefore solution techniques that speed the calculation while maintaining accuracy are desirable. One factor that contributes to the solution time is the spatial flux shape approximation used. It is common practice to use the same order flux shape approximation in each energy group even though this method may not be the most efficient. The one-dimensional, two-energy group diffusion equation was solved, for the node average flux and core k-effective, using two sets of spatial shape approximations for each of three reactor types. A fourth-order approximation in both energy groups forms the first set of approximations used. The second set used combines a second-order approximation with a fourth-order approximation in energy group two. Comparison of the results from the two approximation sets show that the use of a different order spatial flux shape approximation results in considerable loss in accuracy for the pressurized water reactor modeled. However, the loss in accuracy is small for the heavy water and graphite reactors modeled. The use of different order approximations in each energy group produces mixed results. Further investigation into the accuracy and computing time is required before any quantitative advantage of the use of the second-order approximation in energy group one and the fourth-order approximation in energy group two can be determined.
A simple approximation for the current-voltage characteristics of high-power, relativistic diodes
Ekdahl, Carl
2016-06-01
A simple approximation for the current-voltage characteristics of a relativistic electron diode is presented. The approximation is accurate from non-relativistic through relativistic electron energies. Although it is empirically developed, it has many of the fundamental properties of the exact diode solutions. Lastly, the approximation is simple enough to be remembered and worked on almost any pocket calculator, so it has proven to be quite useful on the laboratory floor.
Not Available
1993-04-01
The United States Department of Energy (DOE) has declared that all Hanford plutonium production- and operations-related information generated between 1944 and 1972 is declassified. Any documents found and deemed useful for meeting Hanford Environmental Dose Reconstruction (HEDR) objectives may be declassified with or without deletions in accordance with DOE guidance by Authorized Derivative Declassifiers. The September 1992, letter report, Declassifications Requested by the Technical Steering Panel of Hanford Documents Produced 1944--1960, (PNWD-2024 HEDR UC-707), provides an important milestone toward achieving a complete listing of documents that may be useful to the HEDR Project. The attached listing of approximately 7,000 currently classified Hanford-originated documents relative to Hanford Production Facilities Operations between 1961 and 1972 fulfills TSP Directive 89-3. This list does not include such titles as the Irradiation Processing Department, Chemical Processing Department, and Hanford Laboratory Operations monthly reports generated after 1960 which have been previously declassified with minor deletions and made publicly available. Also Kaiser Engineers Hanford (KEH) Document Control determined that no KEH documents generated between January 1, 1961 and December 31, 1972 are currently classified. Titles which address work for others have not been included because Hanford Site contractors currently having custodial responsibility for these documents do not have the authority to determine whether other than their own staff have on file an appropriate need-to-know. Furthermore, these documents do not normally contain information relative to Hanford Site operations.
Lattice QCD Thermodynamics : 10k analysis with 1k thermalziation and block size of 500.
Soltz, R; Vranas, P; Gupta, R
2007-05-10
This is a re-analysis of the Lattice QCD Thermodynamics p4rhcm new beta analysis (UCRL-TR-230742) with approximately 10k trajectories per beta point, rerun with thermalization cut at 1000, and a block size of 500. Some diagnostic text has been omitted to reduce the number of pages.
Oil and gas field code master list 1997
1998-02-01
The Oil and Gas Field Code Master List 1997 is the sixteenth annual listing of all identified oil and gas fields in the US. It is updated with field information collected through October 1997. The purpose of this publication is to provide unique, standardized codes for identification of domestic fields. Use of these field codes fosters consistency of field identification by government and industry. As a result of their widespread adoption they have in effect become a national standard. The use of field names and codes listed in this publication is required on survey forms and other reports regarding field-specific data collected by EIA. There are 58,366 field records in this year`s FCML, 437 more than last year. The FCML includes: field records for each State and county in which a field resides; field records for each offshore area block in the Gulf of Mexico in which a field resides; field records for each alias field name (definition of alias is listed); fields crossing State boundaries that may be assigned different names by the respective State naming authorities. This report also contains an Invalid Field Record List of 4 records that have been removed from the FCML since last year`s report. These records were found to be either technically incorrect or to represent field names which were never recognized by State naming authorities.
updated_supplemental_lists_1p_2p_3o_04302013.xlsx | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
p_2p_3o_04302013.xlsx updated_supplemental_lists_1p_2p_3o_04302013.xlsx updated_supplemental_lists_1p_2p_3o_04302013.xlsx (22.13 KB) More Documents & Publications updated_supplemental_lists_1n-2n-3m_07-06-2012.xlsx updated_supplemental_lists_1m-2m-3l-04-05-2012.xlsx updated_supplemental_lists_1j-2j-3i_12-22
Reduce Pumping Costs through Optimum Pipe Sizing
Not Available
2005-10-01
BestPractices Program tip sheet discussing pumping system efficiency by reducing pumping costs through optimum pipe sizing.
Oil and Gas Field Code Master List 1990
Not Available
1991-01-04
This is the ninth annual edition of the Energy Information Administration's (EIA) Oil and Gas Field Code Master List. It reflects data collected through October 1990 and provides standardized field name spellings and codes for all identified oil and/or gas fields in the United States. There are 54,963 field records in this year's Oil and Gas Field Code Master List (FCML). This amounts to 467 more than in last year's report. As it is maintained by EIA, the Master List includes: Field records for each state and county in which a field resides; field records for each offshore area block in the Gulf of Mexico in which a field resides;field records for each alias field name; fields crossing state boundaries that may be assigned different names by the respective state naming authorities.
Wu, H.; Wang, R.; Liu, Y.; Zhao, E. , P.O. Box 8730, Beijing Physics Department, Suzhou University, Suzhou Institute of High Energy Physics, Academia Sinica, Beijing Institute of Theoretical Physics, Academia Sinica, Beijing )
1992-04-01
The double-charge-exchange (DCX) reaction with Ca isotopes as targets is studied by employing the interacting-boson approximation (IBA). A comparison between the IBA and the shell-model results shows that IBA is a good approximation of the shell model in describing the DCX reactions.
Oil and gas field code master list 1994
Not Available
1995-01-01
This is the thirteenth annual edition of the Energy Information Administration`s (EIA) Oil and Gas Field Code Master List. It reflects data collected through October 1994 and provides standardized field name spellings and codes for all identified oil and/or gas fields in the United States. The master field name spellings and codes are to be used by respondents when filing the following Department of Energy (DOE) forms: Form EIA-23, {open_quotes}Annual Survey of Domestic Oil and Gas Reserves,{close_quotes} filed by oil and gas well operators (field codes are required from larger operators only); Forms FERC 8 and EIA-191, {open_quotes}Underground Gas Storage Report,{close_quotes} filed by natural gas producers and distributors who operate underground natural gas storage facilities. Other Federal and State government agencies, as well as industry, use the EIA Oil and Gas Field Code Master List as the standard for field identification. A machine-readable version of the Oil and Gas Field Code Master List is available from the National Technical Information Service, 5285 Port Royal Road, Springfield, Virginia 22161, (703) 487-4650. In order for the Master List to be useful, it must be accurate and remain current. To accomplish this, EIA constantly reviews and revises this list. The EIA welcomes all comments, corrections, and additions to the Master List. All such information should be given to the EIA Field Code Coordinator at (214) 953-1858. EIA gratefully acknowledges the assistance provides by numerous State organizations and trade associations in verifying the existence of fields and their official nomenclature.
Born-Oppenheimer approximation for open quantum systems within the quantum trajectory approach
Huang, X. L.; Wu, S. L.; Wang, L. C.; Yi, X. X.
2010-05-15
Using the quantum trajectory approach, we extend the Born-Oppenheimer (BO) approximation from closed to open quantum systems, where the open quantum system is described by a master equation in Lindblad form. The BO approximation is defined and the validity condition is derived. We find that the dissipation in fast variables improves the BO approximation, unlike the dissipation in slow variables. A detailed comparison is presented between this extension and our previous approximation based on the effective Hamiltonian approach [X. L. Huang and X. X. Yi, Phys. Rev. A 80, 032108 (2009)]. Several additional features and advantages are analyzed, which show that the two approximations are complementary to each other. Two examples are described to illustrate our method.
Momentum and energy approximations for elementary squeeze-film damper flows
Crandall, S.H.; El-shafei, A.
1993-09-01
To provide understanding of the effects of inertia on squeeze-film damper performance, two elementary flow patterns are studied. These elementary flows each depend on a single generalized motion coordinate whereas general planar motions of a damper are described by two independent generalized coordinates. Momentum and energy approximations for the elementary flows are compared with exact solutions. It is shown that the energy approximation, not previously applied to squeeze films, is superior to the momentum approximation in that at low Reynolds number the energy approximations agree with the exact solutions to first order in the Reynolds number whereas there are 20 percent errors in the first-order terms of the momentum approximations. 17 refs.
Part III - List of Documents, Exhibits, and Other Attachments
National Nuclear Security Administration (NNSA)
Updated 9/30/15 to Mod 0588 Contract No. DE-AC04-94AL85000 Modification No. M202 Section J - Page 1 Part III - List of Documents, Exhibits, and Other Attachments Section J LIST OF ATTACHMENTS Document Appendix A - Personnel Appendix (Revised RAs 1-12 and Mods M0541, M0558) Appendix B - Statement of Work (Revised M244, M264) Appendix C - Special Bank Account Agreement (Revised M248, M271, M461, M497, M508) Appendix D - Key Personnel (Revised M216, M224, M227, M229, M233, M252, M257, M272, M275,
DOE technical standards list: Department of Energy standards index
1997-06-01
This technical standards list (TSL) was prepared for use by personnel involved in the selection and use of US DOE technical standards and other government and non-government standards. This TSL provides listings of current DOE technical standards, non-government standards that have been adopted by DOE, other government documents in which DOE has a recorded interest, and cancelled DOE technical standards. Standards are indexed by type in the appendices to this document. Definitions of and general guidance for the use of standards are also provided.
Hazards of explosives dusts: Particle size effects
Cashdollar, K L; Hertzberg, M; Green, G M
1992-02-01
At the request of the Department of Energy, the Bureau of Mines has investigated the hazards of military explosives dispersed as dust clouds in a 20-L test chamber. In this report, the effect of particle size for HMX, HNS, RDX, TATB, and TNT explosives dusts is studied in detail. The explosibility data for these dusts are also compared to those for pure fuel dusts. The data show that all of the sizes of the explosives dusts that were studied were capable of sustaining explosions as dust clouds dispersed in air. The finest sizes (<10 [mu]m) of explosives dusts were less reactive than the intermediate sizes (20 to 60 [mu]m); this is opposite to the particle size effect observed previously for the pure fuel dusts. At the largest sizes studied, the explosives dusts become somewhat less reactive as dispersed dust clouds. The six sizes of the HMX dust were also studied as dust clouds dispersed in nitrogen.
Convergence properties of polynomial chaos approximations for L2 random variables.
Field, Richard V., Jr. (.,; .); Grigoriu, Mircea (Cornell University, Ithaca, NY)
2007-03-01
Polynomial chaos (PC) representations for non-Gaussian random variables are infinite series of Hermite polynomials of standard Gaussian random variables with deterministic coefficients. For calculations, the PC representations are truncated, creating what are herein referred to as PC approximations. We study some convergence properties of PC approximations for L{sub 2} random variables. The well-known property of mean-square convergence is reviewed. Mathematical proof is then provided to show that higher-order moments (i.e., greater than two) of PC approximations may or may not converge as the number of terms retained in the series, denoted by n, grows large. In particular, it is shown that the third absolute moment of the PC approximation for a lognormal random variable does converge, while moments of order four and higher of PC approximations for uniform random variables do not converge. It has been previously demonstrated through numerical study that this lack of convergence in the higher-order moments can have a profound effect on the rate of convergence of the tails of the distribution of the PC approximation. As a result, reliability estimates based on PC approximations can exhibit large errors, even when n is large. The purpose of this report is not to criticize the use of polynomial chaos for probabilistic analysis but, rather, to motivate the need for further study of the efficacy of the method.
EM Makes Progress on GAO High-Risk List
WASHINGTON, D.C. – The U.S. Government Accountability Office (GAO) has removed EM capital asset projects of $750 million or less from its high-risk list because of the nuclear cleanup program’s progress in completing that work.
Computerized Instrumented Residential Audit, version 1. 0: source listings
Not Available
1982-06-01
CIRA is a set of computer programs to predict the energy consumption of small buildings. It can also provide an optimized list of improvements which reduce energy use. The source code in BASIC is provided to help a user adapt the program to a particular application, or to see details of the calculation algorithms. (LEW)
Implementation plan for HANDI 2000 TWRS master equipment list
BENNION, S.I.
1999-03-25
This document presents the implementation plan for an additional deliverable of the HANDI 2000 Project. The PassPort Equipment Data module processes include those portions of the COTS PassPort system required to support tracking and management of the Master Equipment List for Lockheed Martin Hanford Company (LMHC) and custom software created to work with the COTS products.
First and second order approximations to stage numbers in multicomponent enrichment cascades
Scopatz, A.
2013-07-01
This paper describes closed form, Taylor series approximations to the number product stages in a multicomponent enrichment cascade. Such closed form approximations are required when a symbolic, rather than a numeric, algorithm is used to compute the optimal cascade state. Both first and second order approximations were implemented. The first order solution was found to be grossly incorrect, having the wrong functional form over the entire domain. On the other hand, the second order solution shows excellent agreement with the 'true' solution over the domain of interest. An implementation of the symbolic, second order solver is available in the free and open source PyNE library. (authors)
Automatic generation of stop word lists for information retrieval and analysis
Rose, Stuart J
2013-01-08
Methods and systems for automatically generating lists of stop words for information retrieval and analysis. Generation of the stop words can include providing a corpus of documents and a plurality of keywords. From the corpus of documents, a term list of all terms is constructed and both a keyword adjacency frequency and a keyword frequency are determined. If a ratio of the keyword adjacency frequency to the keyword frequency for a particular term on the term list is less than a predetermined value, then that term is excluded from the term list. The resulting term list is truncated based on predetermined criteria to form a stop word list.
Oil and Gas field code master list 1995
1995-12-01
This is the fourteenth annual edition of the Energy Information Administration`s (EIA) Oil and Gas Field Code Master List. It reflects data collected through October 1995 and provides standardized field name spellings and codes for all identified oil and/or gas fields in the US. The Field Code Index, a listing of all field names and the States in which they occur, ordered by field code, has been removed from this year`s publications to reduce printing and postage costs. Complete copies (including the Field Code Index) will be available on the EIA CD-ROM and the EIA World-Wide Web Site. Future editions of the complete Master List will be available on CD-ROM and other electronic media. There are 57,400 field records in this year`s Oil and Gas Field Code Master List. As it is maintained by EIA, the Master List includes the following: field records for each State and county in which a field resides; field records for each offshore area block in the Gulf of Mexico in which a field resides; field records for each alias field name (see definition of alias below); and fields crossing State boundaries that may be assigned different names by the respective State naming authorities. Taking into consideration the double-counting of fields under such circumstances, EIA identifies 46,312 distinct fields in the US as of October 1995. This count includes fields that no longer produce oil or gas, and 383 fields used in whole or in part for oil or gas Storage. 11 figs., 6 tabs.
Insight into organic reactions from the direct random phase approximation and its corrections
Ruzsinszky, Adrienn; Zhang, Igor Ying; Scheffler, Matthias
2015-10-14
The performance of the random phase approximation (RPA) and beyond-RPA approximations for the treatment of electron correlation is benchmarked on three different molecular test sets. The test sets are chosen to represent three typical sources of error which can contribute to the failure of most density functional approximations in chemical reactions. The first test set (atomization and n-homodesmotic reactions) offers a gradually increasing balance of error from the chemical environment. The second test set (Diels-Alder reaction cycloaddition = DARC) reflects more the effect of weak dispersion interactions in chemical reactions. Finally, the third test set (self-interaction error 11 = SIE11) represents reactions which are exposed to noticeable self-interaction errors. This work seeks to answer whether any one of the many-body approximations considered here successfully addresses all these challenges.
Zhang, Hou-Dao; Yan, YiJing
2015-12-07
The issue of efficient hierarchy truncation is related to many approximate theories. In this paper, we revisit this issue from both the numerical efficiency and quantum mechanics prescription invariance aspects. The latter requires that the truncation approximation made in Schrödinger picture, such as the quantum master equations and their self–consistent–Born–approximation improvements, should be transferable to their Heisenberg–picture correspondences, without further approximations. We address this issue with the dissipaton equation of motion (DEOM), which is a unique theory for the dynamics of not only reduced systems but also hybrid bath environments. We also highlight the DEOM theory is not only about how its dynamical variables evolve in time, but also the underlying dissipaton algebra. We demonstrate this unique feature of DEOM with model systems and report some intriguing nonlinear Fano interferences characteristics that are experimentally measurable.
Far-Field Approximation in the Generalized Geometry Holdup (GGH) Model
Oberer, R. B.; Gunn, C. A.; Chiang, L.G.
2006-09-07
Quantitative gamma spectrometry measurements of uranium frequently require corrections for attenuation by an equipment or container layer and by the uranium bearing material itself. It is common to correct for attenuation using the ''far-field approximation''. Under this approximation, the minimum thickness of equipment or material is used for the correction rather than an average thickness over the detector field-of-view. In reality this aspect of the far-field approximation is really a narrow field-of-view approximation. The price of this simplification is the introduction of a bias. This bias will be investigated in this paper. In addition, there is a distance dependence of the radial response of a detector. This dependence will also be investigated.
Horowitz, Jordan M.
2015-07-28
The stochastic thermodynamics of a dilute, well-stirred mixture of chemically reacting species is built on the stochastic trajectories of reaction events obtained from the chemical master equation. However, when the molecular populations are large, the discrete chemical master equation can be approximated with a continuous diffusion process, like the chemical Langevin equation or low noise approximation. In this paper, we investigate to what extent these diffusion approximations inherit the stochastic thermodynamics of the chemical master equation. We find that a stochastic-thermodynamic description is only valid at a detailed-balanced, equilibrium steady state. Away from equilibrium, where there is no consistent stochastic thermodynamics, we show that one can still use the diffusive solutions to approximate the underlying thermodynamics of the chemical master equation.
ARM - Measurement - Aerosol particle size distribution
U.S. Department of Energy (DOE) - all webpages (Extended Search)
particle size distribution ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Aerosol particle size distribution The number of aerosol particles present in any given volume of air within a specificied size range Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a
ARM - Measurement - Cloud particle size distribution
U.S. Department of Energy (DOE) - all webpages (Extended Search)
size distribution ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Cloud particle size distribution The number of cloud particles present in any given volume of air within a specified size range, including liquid and ice. Categories Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each
Tests of Monte Carlo Independent Column Approximation in the ECHAM5
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Atmospheric GCM 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
" Electricity Generation by Employment Size Categories...
Energy Information Administration (EIA) (indexed site)
Total Consumption of Offsite-Produced Energy for Heat, Power, and" " Electricity Generation by Employment Size Categories, Industry Group, and" " Selected Industries, 1991" " ...
Particle size distribution instrument. Topical report 13
Okhuysen, W.; Gassaway, J.D.
1995-04-01
The development of an instrument to measure the concentration of particles in gas is described in this report. An in situ instrument was designed and constructed which sizes individual particles and counts the number of occurrences for several size classes. Although this instrument was designed to detect the size distribution of slag and seed particles generated at an experimental coal-fired magnetohydrodynamic power facility, it can be used as a nonintrusive diagnostic tool for other hostile industrial processes involving the formation and growth of particulates. Two of the techniques developed are extensions of the widely used crossed beam velocimeter, providing simultaneous measurement of the size distribution and velocity of articles.
Investigation of thermochemical biorefinery sizing and environmental...
Office of Scientific and Technical Information (OSTI)
Investigation of thermochemical biorefinery sizing and environmental sustainability impacts for conventional supply system and distributed pre-processing supply system designs...
Pusa, M.; Leppaenen, J.
2012-07-01
The Chebyshev Rational Approximation Method (CRAM) has been recently introduced by the authors for solving the burnup equations with excellent results. This method has been shown to be capable of simultaneously solving an entire burnup system with thousands of nuclides both accurately and efficiently. The method was prompted by an analysis of the spectral properties of burnup matrices and it can be characterized as the best rational approximation on the negative real axis. The coefficients of the rational approximation are fixed and have been reported for various approximation orders. In addition to these coefficients, implementing the method only requires a linear solver. This paper describes an efficient method for solving the linear systems associated with the CRAM approximation. The introduced direct method is based on sparse Gaussian elimination where the sparsity pattern of the resulting upper triangular matrix is determined before the numerical elimination phase. The stability of the proposed Gaussian elimination method is discussed based on considering the numerical properties of burnup matrices. Suitable algorithms are presented for computing the symbolic factorization and numerical elimination in order to facilitate the implementation of CRAM and its adoption into routine use. The accuracy and efficiency of the described technique are demonstrated by computing the CRAM approximations for a large test case with over 1600 nuclides. (authors)
Strengthening of metallic alloys with nanometer-size oxide dispersions
Flinn, J.E.; Kelly, T.F.
1999-06-01
Austenitic stainless steels and nickel-base alloys containing, by wt. %, 0.1 to 3.0% V, 0.01 to 0.08% C, 0.01 to 0.5% N, 0.05% max. each of Al and Ti, and 0.005 to 0.10% O, are strengthened and ductility retained by atomization of a metal melt under cover of an inert gas with added oxygen to form approximately 8 nanometer-size hollow oxides within the alloy grains and, when the alloy is aged, strengthened by precipitation of carbides and nitrides nucleated by the hollow oxides. Added strengthening is achieved by nitrogen solid solution strengthening and by the effect of solid oxides precipitated along and pinning grain boundaries to provide temperature-stabilization and refinement of the alloy grains. 20 figs.
Strengthening of metallic alloys with nanometer-size oxide dispersions
Flinn, John E. (Idaho Falls, ID); Kelly, Thomas F. (Madison, WI)
1999-01-01
Austenitic stainless steels and nickel-base alloys containing, by wt. %, 0.1 to 3.0% V, 0.01 to 0.08% C, 0.01 to 0.5% N, 0.05% max. each of Al and Ti, and 0.005 to 0.10% O, are strengthened and ductility retained by atomization of a metal melt under cover of an inert gas with added oxygen to form approximately 8 nanometer-size hollow oxides within the alloy grains and, when the alloy is aged, strengthened by precipitation of carbides and nitrides nucleated by the hollow oxides. Added strengthening is achieved by nitrogen solid solution strengthening and by the effect of solid oxides precipitated along and pinning grain boundaries to provide temperature-stabilization and refinement of the alloy grains.
DOE Refers Two ENERGY STAR Models to EPA for Potential De-Listing...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Two ENERGY STAR Models to EPA for Potential De-Listing DOE Refers Two ENERGY STAR Models to EPA for Potential De-Listing January 11, 2012 - 11:00am Addthis U.S. Department of...
Participant List for the 2010-2025 Scenario Analysis for Hydrogen...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Participant List for the 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure Meeting on January 31, 2007 Participant List for the 2010-2025 Scenario ...
DOE Refers Four ENERGY STAR Models to EPA for Potential De-Listing...
Office of Environmental Management (EM)
Refers Four ENERGY STAR Models to EPA for Potential De-Listing DOE Refers Four ENERGY STAR Models to EPA for Potential De-Listing June 27, 2012 - 3:07pm Addthis U.S. Department of ...
DE-EM-0001971 WIPP M&O J-15 PART III - LIST OF DOCUMENTS, EXHIBITS...
U.S. Department of Energy (DOE) - all webpages (Extended Search)
15 PART III - LIST OF DOCUMENTS, EXHIBITS AND OTHER ATTACHMENTS SECTION J ATTACHMENT D: ... WIPP M&O J-16 PART III - LIST OF DOCUMENTS, EXHIBITS AND OTHER ATTACHMENTS SECTION ...
DOE O 205.1B Reference List | Department of Energy
Office of Environmental Management (EM)
DOE O 205.1B Reference List Includes a list of sources cited in the directive and additional information sources to assist in implementing DOE Order 205.1B, Cyber Security Program. ...
Attendees list from the U.S. Department of Energy's High Throughput...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Attendees list from the U.S. Department of Energy's High Throughput Screening of Hydrogen Storage Materials Workshop on June 26, 2007 Attendees list from the U.S. Department of ...
hud_list-1_07-01-11.xls | Department of Energy
Energy.gov [DOE] (indexed site)
list-107-01-11.xls More Documents & Publications hudlist-107-01-11.xls list2eligiblemultifamilybuildings10-cfr-440-22b4ii.xls rdmfhlowandverylow...
2015 U.S. Department of Energy National Cleanup Workshop Registration List
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
| Department of Energy U.S. Department of Energy National Cleanup Workshop Registration List 2015 U.S. Department of Energy National Cleanup Workshop Registration List List of registered attendees to the 2015 U.S. Department of Energy National Cleanup Workshop. 2015 U.S. Department of Energy National Cleanup Workshop Registration List (88.07 KB) More Documents & Publications Agenda for the 2016 National Cleanup Workshop Welcome - Opening Remarks 2016 National Cleanup Workshop Registrant
Geothermal publications list for Geopowering the West States
2004-12-01
A list of geothermal publications is provided for each of the states under the ''GeoPowering the West'' program. They are provided to assist the various states in developing their geothermal resources for direct-use and electric power applications. Each state publication list includes the following: (1) General papers on various direct-uses and electric power generation available from the Geo-Heat Center either by mail or on-line at: http://geoheat.oit.edu. (2) General Geo-Heat Center Quarterly Bulletin articles related to various geothermal uses--also available either by mail or on-line; (3) Publications from other web sites such as: Geothermal-Biz.com; NREL, EGI, GEO and others ; and (4) Geothermal Resources Council citations, which are available from their web site: www.geothermal.org.
DOE technical standards list: Department of Energy standards index
1999-05-01
This Department of Energy (DOE) technical standards list (TSL) has been prepared by the Office of Nuclear Safety Policy and Standards (EH-31) on the basis of currently available technical information. Periodic updates of this TSL will be issued as additional information is received on standardization documents being issued, adopted, or canceled by DOE. This document was prepared for use by personnel involved in the selection and use of DOE technical standards and other Government and non-Government standards. This TSL provides listings of current DOE technical standards, non-Government standards that have been adopted by DOE, other standards-related documents in which DOE has a recorded interest, and canceled DOE technical standards. Information on new DOE technical standards projects, technical standards released for coordination, recently published DOE technical standards, and activities of non-Government standards bodies that may be of interest to DOE is published monthly in Standards Actions.
Attachment 2 List of Major Information Systems
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
1 - List of Major Information Systems Defense Line of Business National Nuclear Security Administration ADaPT Networked: Develops and deploys emerging information networking technology to production processes in support of the U.S. nuclear weapons stockpile. National Nuclear Security Administration ADaPT Network Infrastructure: Develops and deploys emerging information networking technology to production processes in support of the U.S. nuclear weapons stockpile. Advanced Simulation and
309 Facility deactivation and decommisioning Criteria Completion Check Lists
Cornwell, B.C.
1996-02-01
To facilitate and track completion of the 309 Facility turnover criteria completion an Applicability Matrix and Criteria Completion Check Lists were prepared. The applicability matrix documents the required turnover criteria for a given area in the facility or scope of work. The applicable criteria is selected for 16 different areas. For each area a completion checklist is provided to document completion of a requirement by WHC and the Environmental Restoration Contractor.
APPENDIXN DE-NA0000622 LIST OF APPLICABLE DIRECTIVES
National Nuclear Security Administration (NNSA)
SECTION .I APPENDIXN DE-NA0000622 LIST OF APPLICABLE DIRECTIVES 09/17/2014 Directive Directive Title 10 CFR 824, Current Rule Procedural Rules for the Assessment of Civil Penalties for Classified Information Security Violations 1 O CFR 830 - Current Rule Nuclear Safety Management 1 O CFR 851 - Current Rule Worker Safety and Health Program ANSI B30.11 Monorails and Underhung Hoists ANSI N323A Radiation Protection Instrumentation Test and Calibration Portable Survey Instrumentation, 1997 ANSI
Draft SPD Supplemental EIS Master Reference List | National Nuclear
National Nuclear Security Administration (NNSA)
Security Administration | (NNSA) Draft SPD Supplemental EIS Master Reference List References for Chapters 1 - 5 References for Appendix A References for Appendix B References for Appendix C References for Appendix D References for Appendix E References for Appendix F References for Appendix G References for Appendix H References for Appendix I References for Appendix J References for Summary Learn More SPD SEIS References for Appendix E SPD SEIS References for Appendix F SPD SEIS References
National Nuclear Security Administration Supplemental Listing of Directives
National Nuclear Security Administration (NNSA)
National Nuclear Security Administration Supplemental Listing of Directives Affecting Nuclear Safety Requirements Last Updated 06/2014 U.S. DEPARTMENT OF ENERGY National Nuclear Security Administration Office of the Chief of Defense Nuclear Safety AVAILABLE ONLINE AT: http://hq.na.gov link to NNSA Policies/Supplemental Directives Updated 6/10/14 This Page Intentionally Blank. Concurrence on Exemptions or Exceptions Page 1 ADDITIONAL DIRECTIVES (LATEST VERSION) REQUIRING CENTRAL TECHNICAL
A Prescription for List-Mode Data Processing Conventions
Beddingfield, David H.; Swinhoe, Martyn Thomas; Huszti, Jozsef; Newell, Matthew R.
2015-10-08
There are a variety of algorithmic approaches available to process list-mode pulse streams to produce multiplicity histograms for subsequent analysis. In the development of the INCC v6.0 code to include the processing of this data format, we have noted inconsistencies in the “processed time” between the various approaches. The processed time, tp, is the time interval over which the recorded pulses are analyzed to construct multiplicity histograms. This is the time interval that is used to convert measured counts into count rates. The observed inconsistencies in tp impact the reported count rate information and the determination of the error-values associated with the derived singles, doubles, and triples counting rates. This issue is particularly important in low count-rate environments. In this report we will present a prescription for the processing of list-mode counting data that produces values that are both correct and consistent with traditional shift-register technologies. It is our objective to define conventions for list mode data processing to ensure that the results are physically valid and numerically aligned with the results from shift-register electronics.
Stewart, M.; Lepadatu, S.; McCartney, L. N.; Cain, M. G.; Wright, L.; Crain, J.; Newns, D. M.; Martyna, G. J.
2015-02-01
The determination of the piezoelectric coefficient of thin films using interferometry is hindered by bending contributions. Using finite element analysis (FEA) simulations, we show that the Lefki and Dormans approximations using either single or double-beam measurements cannot be used with finite top electrode sizes. We introduce a novel method for characterising piezoelectric thin films which uses a differential measurement over the discontinuity at the electrode edge as an internal reference, thereby eliminating bending contributions. This step height is shown to be electrode size and boundary condition independent. An analytical expression is derived which gives good agreement with FEA predictions of the step height.
Energy loss straggling in collisions of fast finite-size ions with atoms
Makarov, D. N. Matveev, V. I.
2013-03-15
The influence of ion size on straggling of energy losses by fast partially stripped ions is studied using the nonperturbative approach based on the eikonal approximation. It is shown that such a consideration of collisions of ions with complex atoms can lead to considerable corrections in calculating root-mean-square straggling of energy losses by fast ions compared to the results obtained for point ions. The root-mean-square straggling of energy losses are calculated for bromide and iodine ions in collisions with copper, silver, and aluminum atoms. It is shown that allowance for the size of the electron 'coat' of an ion noticeably improves the agreement with experimental data.
Brett, Tobias Galla, Tobias
2014-03-28
We present a heuristic derivation of Gaussian approximations for stochastic chemical reaction systems with distributed delay. In particular, we derive the corresponding chemical Langevin equation. Due to the non-Markovian character of the underlying dynamics, these equations are integro-differential equations, and the noise in the Gaussian approximation is coloured. Following on from the chemical Langevin equation, a further reduction leads to the linear-noise approximation. We apply the formalism to a delay variant of the celebrated Brusselator model, and show how it can be used to characterise noise-driven quasi-cycles, as well as noise-triggered spiking. We find surprisingly intricate dependence of the typical frequency of quasi-cycles on the delay period.
Jin, Jinshuang; Li, Jun; Liu, Yu; Li, Xin-Qi; Yan, YiJing
2014-06-28
Beyond the second-order Born approximation, we propose an improved master equation approach to quantum transport under self-consistent Born approximation. The basic idea is to replace the free Green's function in the tunneling self-energy diagram by an effective reduced propagator under the Born approximation. This simple modification has remarkable consequences. It not only recovers the exact results for quantum transport through noninteracting systems under arbitrary voltages, but also predicts the challenging nonequilibrium Kondo effect. Compared to the nonequilibrium Green's function technique that formulates the calculation of specific correlation functions, the master equation approach contains richer dynamical information to allow more efficient studies for such as the shot noise and full counting statistics.
Simulating higher-dimensional geometries in GADRAS using approximate one-dimensional solutions.
Thoreson, Gregory G.; Mitchell, Dean James; Harding, Lee T.
2013-02-01
The Gamma Detector Response and Analysis Software (GADRAS) software package is capable of simulating the radiation transport physics for one-dimensional models. Spherical shells are naturally one-dimensional, and have been the focus of development and benchmarking. However, some objects are not spherical in shape, such as cylinders and boxes. These are not one-dimensional. Simulating the radiation transport in two or three dimensions is unattractive because of the extra computation time required. To maintain computational efficiency, higher-dimensional geometries require approximations to simulate them in one-dimension. This report summarizes the theory behind these approximations, tests the theory against other simulations, and compares the results to experimental data. Based on the results, it is recommended that GADRAS users always attempt to approximate reality using spherical shells. However, if fissile material is present, it is imperative that the shape of the one-dimensional model matches the fissile material, including the use of slab and cylinder geometry.
Relativistic equation of state at subnuclear densities in the Thomas-Fermi approximation
Zhang, Z. W.; Shen, H., E-mail: shennankai@gmail.com [School of Physics, Nankai University, Tianjin 300071 (China)
2014-06-20
We study the non-uniform nuclear matter using the self-consistent Thomas-Fermi approximation with a relativistic mean-field model. The non-uniform matter is assumed to be composed of a lattice of heavy nuclei surrounded by dripped nucleons. At each temperature T, proton fraction Y{sub p} , and baryon mass density ? {sub B}, we determine the thermodynamically favored state by minimizing the free energy with respect to the radius of the Wigner-Seitz cell, while the nucleon distribution in the cell can be determined self-consistently in the Thomas-Fermi approximation. A detailed comparison is made between the present results and previous calculations in the Thomas-Fermi approximation with a parameterized nucleon distribution that has been adopted in the widely used Shen equation of state.
On the approximations of the distribution function of fusion alpha particles
Bilato, R. Brambilla, M.; Poli, E.
2014-10-15
The solution of the drift-kinetic equation for fusion-born alpha particles is derived in the limit of dominant parallel streaming, and it is related to the usual slowing-down distribution function. The typical approximations of the fast tail of fusion-born alpha particles are briefly compared and discussed. In particular, approximating the distribution function of fast-alpha particles with an “equivalent” Maxwellian is inaccurate to describe absorption of radio-frequency waves in the ion-cyclotron range of frequencies.
Approximate local magnetic-to-electric surface operators for time-harmonic Maxwell's equations
El Bouajaji, M.
2014-12-15
The aim of this paper is to propose new local and accurate approximate magnetic-to-electric surface boundary operators for the three-dimensional time-harmonic Maxwell's equations. After their construction where their accuracy is improved through a regularization process, a localization of these operators and a full finite element approximation is introduced. Next, their numerical efficiency and accuracy is investigated in detail for different scatterers when these operators are used in the extreme situation of On-Surface Radiation Conditions methods.
Liu, Fang; Lin, Lin; Vigil-Fowler, Derek; Lischner, Johannes; Kemper, Alexander F.; Sharifzadeh, Sahar; Jornada, Felipe H. da; Deslippe, Jack; Yang, Chao; and others
2015-04-01
We present a numerical integration scheme for evaluating the convolution of a Green's function with a screened Coulomb potential on the real axis in the GW approximation of the self energy. Our scheme takes the zero broadening limit in Green's function first, replaces the numerator of the integrand with a piecewise polynomial approximation, and performs principal value integration on subintervals analytically. We give the error bound of our numerical integration scheme and show by numerical examples that it is more reliable and accurate than the standard quadrature rules such as the composite trapezoidal rule. We also discuss the benefit of using different self energy expressions to perform the numerical convolution at different frequencies.
Energy & Manufacturing Workforce Training Topics List - Version 1.7
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
(02.11.14) | Department of Energy & Manufacturing Workforce Training Topics List - Version 1.7 (02.11.14) Energy & Manufacturing Workforce Training Topics List - Version 1.7 (02.11.14) View this searchable list of the training programs in the areas of energy and/or manufacturing. Information provided in this list includes: the subjects being taught, grantee, project title, and state. In some cases the list also shows the certificates provided by the courses. Energy and Manufacturing
Ultrasonic Phased Array Technique for Accurate Flaw Sizing in Dissimilar Metal Welds
Jonathan D Buttram
2005-03-11
Described is a manual,portable non-destructive technique to determine the through wall height of cracks present in dissimilar metal welds used in the primary coolling systems of pressure water and boiler light water reactors. Current manual methods found in industry have proven not to exhibit the sizing accuracy required by ASME inspection requirement. The technique described demonstrated an accuracy approximately three times that required to ASME Section XI, Appendix 8 qualification.
Sizing of DNA fragments by flow cytometry
Johnson, M.E.; Goodwin, P.M.; Ambrose, W.P.; Martin, J.C.; Marrone, B.L.; Jett, J.H.; Keller, R.A.
1993-02-01
Individual, stained DNA fragments were sized using a modified flow cytometer with high sensitivity fluorescence detection. The fluorescent intercalating dye ethidium homodimer was used to stain stoichiometrically lambda phage DNA and a Kpn I digest of lambda DNA. Stained, individual fragments of DNA were passed through a low average power, focused, mode-locked laser beam, and the fluorescence from each fragment was collected and quantified. Time-gated detection was used to discriminate against Raman scattering from the water solvent. The fluorescence burst from each fragment was related directly to its length, thus providing a means to size small quantities of kilobase lengths of DNA quickly. Improvements of several orders of magnitude in analysis time and sample size over current gel electrophoresis techniques were realized. Fragments of 17.1,29.9, and 48.5 thousand base pairs were well resolved, and were sized in 164 seconds. Less than one pg of DNA was required for analysis. We have demonstrated sizing of individual, stained DNA fragments with resolution approaching that of gel electrophoresis for moderately large fragments, but with significant reductions in the analysis time and the amount of sample required. Furthermore, system response is linear with DNA fragment length, in contrast to the logarithmic response in gel electrophoresis. There exists the potential to perform this sizing using relatively simple instrumentation, i.e. a continuous wave laser of low power and current mode detection.
Sizing of DNA fragments by flow cytometry
Johnson, M.E.; Goodwin, P.M.; Ambrose, W.P.; Martin, J.C.; Marrone, B.L.; Jett, J.H.; Keller, R.A.
1993-01-01
Individual, stained DNA fragments were sized using a modified flow cytometer with high sensitivity fluorescence detection. The fluorescent intercalating dye ethidium homodimer was used to stain stoichiometrically lambda phage DNA and a Kpn I digest of lambda DNA. Stained, individual fragments of DNA were passed through a low average power, focused, mode-locked laser beam, and the fluorescence from each fragment was collected and quantified. Time-gated detection was used to discriminate against Raman scattering from the water solvent. The fluorescence burst from each fragment was related directly to its length, thus providing a means to size small quantities of kilobase lengths of DNA quickly. Improvements of several orders of magnitude in analysis time and sample size over current gel electrophoresis techniques were realized. Fragments of 17.1,29.9, and 48.5 thousand base pairs were well resolved, and were sized in 164 seconds. Less than one pg of DNA was required for analysis. We have demonstrated sizing of individual, stained DNA fragments with resolution approaching that of gel electrophoresis for moderately large fragments, but with significant reductions in the analysis time and the amount of sample required. Furthermore, system response is linear with DNA fragment length, in contrast to the logarithmic response in gel electrophoresis. There exists the potential to perform this sizing using relatively simple instrumentation, i.e. a continuous wave laser of low power and current mode detection.
Mardirossian, Narbe; Head-Gordon, Martin
2015-02-21
A meta-generalized gradient approximation density functional paired with the VV10 nonlocal correlation functional is presented. The functional form is selected from more than 10{sup 10} choices carved out of a functional space of almost 10{sup 40} possibilities. Raw data come from training a vast number of candidate functional forms on a comprehensive training set of 1095 data points and testing the resulting fits on a comprehensive primary test set of 1153 data points. Functional forms are ranked based on their ability to reproduce the data in both the training and primary test sets with minimum empiricism, and filtered based on a set of physical constraints and an often-overlooked condition of satisfactory numerical precision with medium-sized integration grids. The resulting optimal functional form has 4 linear exchange parameters, 4 linear same-spin correlation parameters, and 4 linear opposite-spin correlation parameters, for a total of 12 fitted parameters. The final density functional, B97M-V, is further assessed on a secondary test set of 212 data points, applied to several large systems including the coronene dimer and water clusters, tested for the accurate prediction of intramolecular and intermolecular geometries, verified to have a readily attainable basis set limit, and checked for grid sensitivity. Compared to existing density functionals, B97M-V is remarkably accurate for non-bonded interactions and very satisfactory for thermochemical quantities such as atomization energies, but inherits the demonstrable limitations of existing local density functionals for barrier heights.
Hydrogen atom excitation in intense attosecond laser field: Gauge dependence of dipole approximation
Aldarmaa, Ch. E-mail: l-xemee@yahoo.com; Khenmedekh, L. E-mail: l-xemee@yahoo.com; Lkhagva, O.
2014-03-24
It is assumed that, the atomic excitations probability can be calculated using first order perturbation theory and dipole approximations. The validity of the dipole approximations had been examined by comparing the results with the results obtained by exact calculations within the first order perturbation theory[2]. Figure 1 shows the time dependence of the transition probability in the dipole approximation. From these plots it is obvious that, the probabilities obtained in the length gauge are higher than that in the velocity gauge, in the interaction period (??/2
A New 2D-Transport, 1D-Diffusion Approximation of the Boltzmann Transport equation
Larsen, Edward
2013-06-17
The work performed in this project consisted of the derivation, implementation, and testing of a new, computationally advantageous approximation to the 3D Boltz- mann transport equation. The solution of the Boltzmann equation is the neutron flux in nuclear reactor cores and shields, but solving this equation is difficult and costly. The new “2D/1D” approximation takes advantage of a special geometric feature of typical 3D reactors to approximate the neutron transport physics in a specific (ax- ial) direction, but not in the other two (radial) directions. The resulting equation is much less expensive to solve computationally, and its solutions are expected to be sufficiently accurate for many practical problems. In this project we formulated the new equation, discretized it using standard methods, developed a stable itera- tion scheme for solving the equation, implemented the new numerical scheme in the MPACT code, and tested the method on several realistic problems. All the hoped- for features of this new approximation were seen. For large, difficult problems, the resulting 2D/1D solution is highly accurate, and is calculated about 100 times faster than a 3D discrete ordinates simulation.
Smith, Kyle K. G.; Poulsen, Jens Aage Nyman, Gunnar; Rossky, Peter J.
2015-06-28
We develop two classes of quasi-classical dynamics that are shown to conserve the initial quantum ensemble when used in combination with the Feynman-Kleinert approximation of the density operator. These dynamics are used to improve the Feynman-Kleinert implementation of the classical Wigner approximation for the evaluation of quantum time correlation functions known as Feynman-Kleinert linearized path-integral. As shown, both classes of dynamics are able to recover the exact classical and high temperature limits of the quantum time correlation function, while a subset is able to recover the exact harmonic limit. A comparison of the approximate quantum time correlation functions obtained from both classes of dynamics is made with the exact results for the challenging model problems of the quartic and double-well potentials. It is found that these dynamics provide a great improvement over the classical Wigner approximation, in which purely classical dynamics are used. In a special case, our first method becomes identical to centroid molecular dynamics.
Weber, J. W.; Bol, A. A. [Department of Applied Physics, Eindhoven University of Technology, Den Dolech 2, P.O. Box 513, 5600 MB Eindhoven (Netherlands); Sanden, M. C. M. van de [Department of Applied Physics, Eindhoven University of Technology, Den Dolech 2, P.O. Box 513, 5600 MB Eindhoven (Netherlands); Dutch Institute for Fundamental Energy Research (DIFFER), Nieuwegein (Netherlands)
2014-07-07
This work presents an improved thin film approximation to extract the optical conductivity from infrared transmittance in a simple yet accurate way. This approximation takes into account the incoherent reflections from the backside of the substrate. These reflections are shown to have a significant effect on the extracted optical conductivity and hence on derived parameters as carrier mobility and density. By excluding the backside reflections, the error for these parameters for typical chemical vapor deposited (CVD) graphene on a silicon substrate can be as high as 17% and 45% for the carrier mobility and density, respectively. For the mid- and near-infrared, the approximation can be simplified such that the real part of the optical conductivity is extracted without the need for a parameterization of the optical conductivity. This direct extraction is shown for Fourier transform infrared (FTIR) transmittance measurements of CVD graphene on silicon in the photon energy range of 3707000?cm{sup ?1}. From the real part of the optical conductivity, the carrier density, mobility, and number of graphene layers are determined but also residue, originating from the graphene transfer, is detected. FTIR transmittance analyzed with the improved thin film approximation is shown to be a non-invasive, easy, and accurate measurement and analysis method for assessing the quality of graphene and can be used for other 2-D materials.
Zhou, Zhennan
2014-09-01
In this paper, we approximate the semi-classical Schrdinger equation in the presence of electromagnetic field by the Hagedorn wave packets approach. By operator splitting, the Hamiltonian is divided into the modified part and the residual part. The modified Hamiltonian, which is the main new idea of this paper, is chosen by the fact that Hagedorn wave packets are localized both in space and momentum so that a crucial correction term is added to the truncated Hamiltonian, and is treated by evolving the parameters associated with the Hagedorn wave packets. The residual part is treated by a Galerkin approximation. We prove that, with the modified Hamiltonian only, the Hagedorn wave packets dynamics give the asymptotic solution with error O(?{sup 1/2}), where ? is the scaled Planck constant. We also prove that, the Galerkin approximation for the residual Hamiltonian can reduce the approximation error to O(?{sup k/2}), where k depends on the number of Hagedorn wave packets added to the dynamics. This approach is easy to implement, and can be naturally extended to the multidimensional cases. Unlike the high order Gaussian beam method, in which the non-constant cut-off function is necessary and some extra error is introduced, the Hagedorn wave packets approach gives a practical way to improve accuracy even when ? is not very small.
Investigations of initiation spot size effects
Clarke, Steven A; Akinci, Adrian A; Leichty, Gary; Schaffer, Timothy; Murphy, Michael J; Munger, Alan; Thomas, Keith A
2010-01-01
As explosive components become smaller, a greater understanding of the effect of initiation spot size on detonation becomes increasingly critical. A series of tests of the effect of initiation spot size will be described. A series of DOI (direct optical initiation) detonators with initiation spots sizes from {approx}50 um to 1000um have been tested to determine laser parameters for threshold firing of low density PETN pressings. Results will be compared with theoretical predictions. Outputs of the initiation source (DOI ablation) have been characterized by a suite of diagnostics including PDV and schlieren imaging. Outputs of complete detonators have been characterized using PDV, streak, and/or schlieren imaging. At present, we have not found the expected change in the threshold energy to spot size relationship for DOI type detonators found in similar earlier for projectiles, slappers and EBWs. New detonators designs (Type C) are currently being tested that will allow the determination of the threshold for spot sizes from 250 um to 105um, where we hope to see change in the threshold vs. spot size relationship. Also, one test of an extremely small diameter spot size (50um) has resulted in preliminary NoGo only results even at energy densities as much as 8 times the energy density of the threshold results presented here. This gives preliminary evidence that 50um spot may be beyond the critical initiation diameter. The constant threshold energy to spot size relationship in the data to date does however still give some insight into the initiation mechanism of DOI detonators. If the DOI initiation mechanism were a 1D mechanism similar to a slapper or a flyer impact, the expected inflection point in the graph would have been between 300um and 500um diameter spot size, within the range of the data presented here. The lack of that inflection point indicates that the DOI initiation mechanism is more likely a 2D mechanism similar to a sphere or rod projectile. We expect to
Size-dependent error of the density functional theory ionization potential in vacuum and solution
Sosa Vazquez, Xochitl A.; Isborn, Christine M.
2015-12-22
Density functional theory is often the method of choice for modeling the energetics of large molecules and including explicit solvation effects. It is preferable to use a method that treats systems of different sizes and with different amounts of explicit solvent on equal footing. However, recent work suggests that approximate density functional theory has a size-dependent error in the computation of the ionization potential. We here investigate the lack of size-intensivity of the ionization potential computed with approximate density functionals in vacuum and solution. We show that local and semi-local approximations to exchange do not yield a constant ionization potentialmore » for an increasing number of identical isolated molecules in vacuum. Instead, as the number of molecules increases, the total energy required to ionize the system decreases. Rather surprisingly, we find that this is still the case in solution, whether using a polarizable continuum model or with explicit solvent that breaks the degeneracy of each solute, and we find that explicit solvent in the calculation can exacerbate the size-dependent delocalization error. We demonstrate that increasing the amount of exact exchange changes the character of the polarization of the solvent molecules; for small amounts of exact exchange the solvent molecules contribute a fraction of their electron density to the ionized electron, but for larger amounts of exact exchange they properly polarize in response to the cationic solute. As a result, in vacuum and explicit solvent, the ionization potential can be made size-intensive by optimally tuning a long-range corrected hybrid functional.« less
Size-dependent error of the density functional theory ionization potential in vacuum and solution
Sosa Vazquez, Xochitl A.; Isborn, Christine M.
2015-12-28
Density functional theory is often the method of choice for modeling the energetics of large molecules and including explicit solvation effects. It is preferable to use a method that treats systems of different sizes and with different amounts of explicit solvent on equal footing. However, recent work suggests that approximate density functional theory has a size-dependent error in the computation of the ionization potential. We here investigate the lack of size-intensivity of the ionization potential computed with approximate density functionals in vacuum and solution. We show that local and semi-local approximations to exchange do not yield a constant ionization potential for an increasing number of identical isolated molecules in vacuum. Instead, as the number of molecules increases, the total energy required to ionize the system decreases. Rather surprisingly, we find that this is still the case in solution, whether using a polarizable continuum model or with explicit solvent that breaks the degeneracy of each solute, and we find that explicit solvent in the calculation can exacerbate the size-dependent delocalization error. We demonstrate that increasing the amount of exact exchange changes the character of the polarization of the solvent molecules; for small amounts of exact exchange the solvent molecules contribute a fraction of their electron density to the ionized electron, but for larger amounts of exact exchange they properly polarize in response to the cationic solute. In vacuum and explicit solvent, the ionization potential can be made size-intensive by optimally tuning a long-range corrected hybrid functional.
Size-dependent error of the density functional theory ionization potential in vacuum and solution
Sosa Vazquez, Xochitl A.; Isborn, Christine M.
2015-12-22
Density functional theory is often the method of choice for modeling the energetics of large molecules and including explicit solvation effects. It is preferable to use a method that treats systems of different sizes and with different amounts of explicit solvent on equal footing. However, recent work suggests that approximate density functional theory has a size-dependent error in the computation of the ionization potential. We here investigate the lack of size-intensivity of the ionization potential computed with approximate density functionals in vacuum and solution. We show that local and semi-local approximations to exchange do not yield a constant ionization potential for an increasing number of identical isolated molecules in vacuum. Instead, as the number of molecules increases, the total energy required to ionize the system decreases. Rather surprisingly, we find that this is still the case in solution, whether using a polarizable continuum model or with explicit solvent that breaks the degeneracy of each solute, and we find that explicit solvent in the calculation can exacerbate the size-dependent delocalization error. We demonstrate that increasing the amount of exact exchange changes the character of the polarization of the solvent molecules; for small amounts of exact exchange the solvent molecules contribute a fraction of their electron density to the ionized electron, but for larger amounts of exact exchange they properly polarize in response to the cationic solute. As a result, in vacuum and explicit solvent, the ionization potential can be made size-intensive by optimally tuning a long-range corrected hybrid functional.
Approximate simulation of CO[sub 2] and H[sub 2]S absorption into aqueous alkanolamines
Glasscock, D.A.; Rochelle, G.T. . Dept. of Chemical Engineering)
1993-08-01
Rigorous and approximate methods are compared for the simulation of CO[sub 2] absorption into aqueous alkanolamine mixtures of methyldiethanolamine and diethanolamine. In addition, data for the mixtures containing monoethanolamine and the simultaneous absorption of CO[sub 2] and H[sub 2]S are presented. For the rigorous approach, the simplified eddy diffusivity theory is used to simulate the liquid-phase hydrodynamic characteristics. The approximation methods examined are the pseudo-first-order approximation, the interpolation approximation of Wellek et al. (1978), the algebraic combined flux (ACFLUX) approximation and the modified combined flux (MCFLUX) approximation. The latter approximation utilizes the reaction zone concept to determine the kinetic preference of the absorbing gas at the gas-liquid interface. Under the range of conditions studied, the MCFLUX approximation predicts very accurately the CO[sub 2] and H[sub 2]S flux rates in mixed amine systems, as compared with the rigorous solution of the differential equations.
Abreu, L. M.; Malbouisson, J. M. C.; Malbouisson, A. P. C.
2011-01-15
We investigate finite-size effects on the phase structure of chiral and difermion condensates at finite temperature and density in the framework of the two-dimensional large-N Nambu-Jona-Lasinio model. We take into account size-dependent effects by making use of zeta-function and compactification methods. The thermodynamic potential and the gap equations for the chiral and difermion condensed phases are then derived in the mean-field approximation. Size-dependent critical lines separating the different phases are obtained considering antiperiodic boundary conditions for the spatial coordinate.
Heidrich-Meisner, Fabian; Martins, G. B.; Al Hassanieh, Khaled A; Feiguin, A. E.; Dagotto, Elbio R
2008-01-01
The study of interacting nanostructures such as quantum dots is a playground for several novel numerical approaches. Recently developed methods such as the time-dependent density matrix renormalization approach or the embedded-cluster approximation rely on the numerical solution of clusters of finite-size. For the interpretation of numerical results, it is important to understand finite-size and boundary effects. Here, we study spin fluctuations and spin spin correlations of two dots coupled in a T-shape geometry. Depending on odd even effects, quite different results emerge from clusters that do not differ much in size. r 2007 Elsevier B.V. All rights reserved.
check list for those with one abnormal BeLPT
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
CHECK LIST FOR THOSE WHO HAVE HAD, OR WHO IN THE FUTURE HAVE, ONE ABNORMAL BeLPT _____ Fill out the EE-1 and EE-3 and include a copy of any abnormal BeLPT results that you have; review the EE-7 form. _____ Make a copy of the completed forms (one to keep for yourself). _____ Take the original copy of your forms (or mail them) to your nearest EEOICPA Resource Center. If you have already filed these forms, please do not fill them out again, just skip to the next item, below. _____ After you are
Part III - List of Documents, Exhibits, and Other Attachments
National Nuclear Security Administration (NNSA)
15 Page 2 of 2 Prime Contract Section J, Appendix G, List of Applicable Directives, is modified as follows: The following Directives are added: NUMBER DATE TITLE DOE O 458.1 Change 3 01/15/13 Radiation Protection of the Public and the Environment DOE O 470.5 06/02/14 Insider Threat DOE O 475.2B 10/03/14 Identifying Classified Information NNSA SD 1027 Change Notice 1 05/13/14 Guidance of Using Release Fraction and Modern Dosimetric Information Consistently with DOE STD 1027-92 The following
Part III - List of Documents, Exhibits, and Other Attachments
National Nuclear Security Administration (NNSA)
25 Page 2 of 2 Prime Contract Section J, Appendix G, List of Applicable Directives, is modified as follows: The following Directives are added: NUMBER DATE TITLE NNSA SD 452.2 11/17/14 Nuclear Explosive Safety Evaluation Processes DOE O 452.1E 01/26/15 Nuclear Explosive and Weapon Surety Program DOE O 452.2E 01/26/15 Nuclear Explosive Safety DOE O 474.2 Change 3 05/15/15 Nuclear Material Control and Accountability The following Directives are deleted: NUMBER DATE TITLE DOE M 452.2-2 04/14/09
Attachment P Listing of SWMUs and AOCs
Office of Environmental Management (EM)
LISTING OF SWMUS AND AOCS Los Alamos National Laboratory Hazardous Waste Permit February2014 Table K-1 SWMUs and AOCs Requiring Corrective Action Attachment K Page 2 Los Alamos National Laboratory Hazardous Waste Permit February 2014 Table K-1 SWMUs and AOCs Requiring Corrective Action SWMU/AOC Unit # Unit Type TA-0 SWMU 00-001 Sediment traps in Mortandad Canyon SWMU 00-011(a) Former Mortar impact area SWMU 00-011(c) Mortar impact area SWMU 00-011(d) Mortar impact area SWMU 00-011(e) Mortar
Hanford Site Chronic Beryllium Disease Prevention Program (CBDPP) Contact List
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Chronic Beryllium Disease Prevention Program (CBDPP) Contact List Page 1 of 2 Updated 8/30/16 Primary and Alternate Membership Organization Primary Office Number Cell Number Alternate Office Number Cell Number BAG Fisher, Mark N/A 539-5588 Artzer, Josh 376-2463 430-5062 CHPRC/HAMTC Sherman, Larry 376-6436 438-2171 Spier, Tracy 373-1993 440-9118 CHPRC Bean, Tonya 376-6503 (303) 709-3047 Robinson, Roby Seydel, Scott 699-9307 373-4860 699-9307 430-0184 CWB&CTC Park, Rick 372-9941 492-6589
DOE technical standards list. Department of Energy standards index
1995-08-01
This document was prepared for use by personnel involved in the selection and use of DOE technical standards and other Government and non-Government standards. This TSL provides listing of current DOE technical standards, non-Government standards that have been adopted by DOE, other Government documents in which DOE has a recorded interest, and canceled DOE technical standards. Information on new DOE technical standards projects, technical standards released for coordination, recently published DOE technical standards, and activities of non-Government standards bodies that may be of interest to DOE is published monthly in Standards Actions.
THE SDSS-III APOGEE SPECTRAL LINE LIST FOR H-BAND SPECTROSCOPY
Shetrone, M.; Bizyaev, D.; Chojnowski, D.; Lawler, J. E.; Prieto, C. Allende; Zamora, O.; García-Hernández, D. A.; Souto, D.; Smith, V. V.; Cunha, K.; Holtzman, J.; Pérez, A. E. García; Sobeck, J.; Majewski, S.; Mészáros, Sz.; Koesterke, L.; Zasowski, G.
2015-12-15
We present the H-band spectral line lists adopted by the Apache Point Observatory Galactic Evolution Experiment (APOGEE). The APOGEE line lists comprise astrophysical, theoretical, and laboratory sources from the literature, as well as newly evaluated astrophysical oscillator strengths and damping parameters. We discuss the construction of the APOGEE line list, which is one of the critical inputs for the APOGEE Stellar Parameters and Chemical Abundances Pipeline, and present three different versions that have been used at various stages of the project. The methodology for the newly calculated astrophysical line lists is reviewed. The largest of these three line lists contains 134,457 molecular and atomic transitions. In addition to the format adopted to store the data, the line lists are available in MOOG, Synspec, and Turbospectrum formats. The limitations of the line lists along with guidance for its use on different spectral types are discussed. We also present a list of H-band spectral features that are either poorly represented or completely missing in our line list. This list is based on the average of a large number of spectral fit residuals for APOGEE observations spanning a wide range of stellar parameters.
DE-SOL-0002555 WIPP Solicitation J-33 PART III - LIST OF DOCUMENTS, EXHIBITS AND OTHER ATTACHMENTS
U.S. Department of Energy (DOE) - all webpages (Extended Search)
3 PART III - LIST OF DOCUMENTS, EXHIBITS AND OTHER ATTACHMENTS SECTION J ATTACHMENT H: RESERVED
ORSSAB Recommends DOE Remove Uncontaminated Areas of the Oak Ridge Reservation from the National Priorities List.
Neutrons measure phase behavior in pores at Angstrom size
Bardoel, Agatha A; Melnichenko, Yuri B
2012-01-01
Researchers have measured the phase behavior of green house gases in pores at the Angstrom-level, using small angle neutron scattering (SANS) at the Oak Ridge National Laboratory's High Flux Isotope Reactor. Yuri Melnichenko, an instrument scientist on the General Purpose Small Angle Neutron Scattering (GP SANS) Diffractometer at ORNL's High Flux Isotope Reactor, his postdoctoral associate Lilin He and collaborators Nidia Gallego and Cristian Contescu from the Material Sciences Division (ORNL) were engaged in the work. They were studying nanoporous carbons to assess their attractiveness as storage media for hydrogen, with a view to potential use for on-board hydrogen storage for transportation applications. Nanoporous carbons can also serve as electrode material for supercapacitors and batteries. The researchers successfully determined that the most efficiently condensing pore size in a carbon nanoporous material for hydrogen storage is less than one nanometer. In a paper recently published by the Journal of the American Chemical Society, the collaborators used small angle neutron scattering to study how hydrogen condenses in small pores at ambient temperature. They discovered that the surface-molecule interactions create internal pressures in pores that may exceed the external gas pressure by a factor of up to 50. 'This is an exciting result,' Melnichenko said, 'as you achieve extreme densification in pores 'for free', i.e. without spending any energy. These results can be used to guide the development of new carbon adsorbents tailored to maximize hydrogen storage capacities.' Another important factor that defines the adsorption capacity of sub-nanometer pores is their shape. In order to get accurate structural information and maximize sorption capacity, it is important that pores are small and of approximately uniform size. In collaboration with Drexel University's Yury Gogotsi who supplied the samples, Melnichenko and his collaborators used the GP SANS
Litvinova, E.; Ring, P.; Tselyaev, V.; Langanke, K.
2009-05-15
Theoretical studies of low-lying dipole strength in even-even spherical nuclei within the relativistic quasiparticle time blocking approximation (RQTBA) are presented. The RQTBA developed recently as an extension of the self-consistent relativistic quasiparticle random-phase approximation (RQRPA) enables one to investigate the effects of the coupling of two-quasiparticle excitations to collective vibrations within a fully consistent calculation scheme based on covariant energy density functional theory. Dipole spectra of even-even {sup 130}Sn-{sup 140}Sn and {sup 68}Ni-{sup 78}Ni isotopes calculated within both RQRPA and RQTBA show two well-separated collective structures: the higher lying giant dipole resonance and the lower lying pygmy dipole resonance, which can be identified by the different behavior of the transition densities of states in these regions.
Darby, John L.
2007-03-01
LinguisticBelief is a Java computer code that evaluates combinations of linguistic variables using an approximate reasoning rule base. Each variable is comprised of fuzzy sets, and a rule base describes the reasoning on combinations of variables fuzzy sets. Uncertainty is considered and propagated through the rule base using the belief/plausibility measure. The mathematics of fuzzy sets, approximate reasoning, and belief/ plausibility are complex. Without an automated tool, this complexity precludes their application to all but the simplest of problems. LinguisticBelief automates the use of these techniques, allowing complex problems to be evaluated easily. LinguisticBelief can be used free of charge on any Windows XP machine. This report documents the use and structure of the LinguisticBelief code, and the deployment package for installation client machines.
Zhang, D.S.; Wei, G.W.; Kouri, D.J.; Hoffman, D.K.
1997-03-01
The distributed approximating functional method is applied to the solution of the Fokker{endash}Planck equations. The present approach is limited to the standard eigenfunction expansion method. Three typical examples, a Lorentz Fokker{endash}Planck equation, a bistable diffusion model and a Henon{endash}Heiles two-dimensional anharmonic resonating system, are considered in the present numerical testing. All results are in excellent agreement with those of established methods in the field. It is found that the distributed approximating functional method yields the accuracy of a spectral method but with a local method{close_quote}s simplicity and flexibility for the eigenvalue problems arising from the Fokker{endash}Planck equations. {copyright} {ital 1997 American Institute of Physics.}
Generalized Fokker-Planck Approximations of Particle Transport with Highly Forward-Peaked Scattering
Leakeas, Christopher L.; Larsen, Edward W.
2001-03-15
The Fokker-Planck equation is often used to approximate the description of particle transport processes with highly forward-peaked scattering. Pomraning has shown that if the physical scattering kernel is sufficiently dominated by small-angle scattering, then the Fokker-Planck equation is an asymptotic approximation to the linear Boltzmann equation. However, most physically-meaningful scattering kernels contain a sufficient amount of large-angle scattering that the asymptotic criterion is not met. Thus, in many physical problems, solutions of the Fokker-Planck equation are substantially in error. In this paper, Pomraning's asymptotic results are generalized and a new generalized Fokker-Planck (GFP) theory that robustly incorporates large-angle scattering is developed. Numerical experiments demonstrate that the resulting GFP equations are much more accurate than the standard Fokker-Planck equation.
Study of multiband disordered systems using the typical medium dynamical cluster approximation
Zhang, Yi; Terletska, Hanna; Moore, C.; Ekuma, Chinedu; Tam, Ka-Ming; Berlijn, Tom; Ku, Wei; Moreno, Juana; Jarrell, Mark
2015-11-06
We generalize the typical medium dynamical cluster approximation to multiband disordered systems. Using our extended formalism, we perform a systematic study of the nonlocal correlation effects induced by disorder on the density of states and the mobility edge of the three-dimensional two-band Anderson model. We include interband and intraband hopping and an intraband disorder potential. Our results are consistent with those obtained by the transfer matrix and the kernel polynomial methods. We also apply the method to K_{x}Fe_{2-y}Se_{2} with Fe vacancies. Despite the strong vacancy disorder and anisotropy, we find the material is not an Anderson insulator. Moreover our results demonstrate the application of the typical medium dynamical cluster approximation method to study Anderson localization in real materials.
Two-component hybrid time-dependent density functional theory within the Tamm-Dancoff approximation
Khn, Michael; Weigend, Florian
2015-01-21
We report the implementation of a two-component variant of time-dependent density functional theory (TDDFT) for hybrid functionals that accounts for spin-orbit effects within the Tamm-Dancoff approximation (TDA) for closed-shell systems. The influence of the admixture of Hartree-Fock exchange on excitation energies is investigated for several atoms and diatomic molecules by comparison to numbers for pure density functionals obtained previously [M. Khn and F. Weigend, J. Chem. Theory Comput. 9, 5341 (2013)]. It is further related to changes upon switching to the local density approximation or using the full TDDFT formalism instead of TDA. Efficiency is demonstrated for a comparably large system, Ir(ppy){sub 3} (61 atoms, 1501 basis functions, lowest 10 excited states), which is a prototype molecule for organic light-emitting diodes, due to its spin-forbidden triplet-singlet transition.
Study of multiband disordered systems using the typical medium dynamical cluster approximation
Zhang, Yi; Terletska, Hanna; Moore, C.; Ekuma, Chinedu; Tam, Ka-Ming; Berlijn, Tom; Ku, Wei; Moreno, Juana; Jarrell, Mark
2015-11-06
We generalize the typical medium dynamical cluster approximation to multiband disordered systems. Using our extended formalism, we perform a systematic study of the nonlocal correlation effects induced by disorder on the density of states and the mobility edge of the three-dimensional two-band Anderson model. We include interband and intraband hopping and an intraband disorder potential. Our results are consistent with those obtained by the transfer matrix and the kernel polynomial methods. We also apply the method to KxFe2-ySe2 with Fe vacancies. Despite the strong vacancy disorder and anisotropy, we find the material is not an Anderson insulator. Moreover our resultsmore » demonstrate the application of the typical medium dynamical cluster approximation method to study Anderson localization in real materials.« less
Double-hybrid density-functional theory with meta-generalized-gradient approximations
Souvi, Sidi M. O. Sharkas, Kamal; Toulouse, Julien; CNRS, UMR 7616, Laboratoire de Chimie Thorique, F-75005 Paris
2014-02-28
We extend the previously proposed one-parameter double-hybrid density-functional theory [K. Sharkas, J. Toulouse, and A. Savin, J. Chem. Phys. 134, 064113 (2011)] to meta-generalized-gradient-approximation (meta-GGA) exchange-correlation density functionals. We construct several variants of one-parameter double-hybrid approximations using the Tao-Perdew-Staroverov-Scuseria (TPSS) meta-GGA functional and test them on test sets of atomization energies and reaction barrier heights. The most accurate variant uses the uniform coordinate scaling of the density and of the kinetic energy density in the correlation functional, and improves over both standard Kohn-Sham TPSS and second-order Mller-Plesset calculations.
Size separation of analytes using monomeric surfactants
Yeung, Edward S.; Wei, Wei
2005-04-12
A sieving medium for use in the separation of analytes in a sample containing at least one such analyte comprises a monomeric non-ionic surfactant of the of the general formula, B-A, wherein A is a hydrophilic moiety and B is a hydrophobic moiety, present in a solvent at a concentration forming a self-assembled micelle configuration under selected conditions and having an aggregation number providing an equivalent weight capable of effecting the size separation of the sample solution so as to resolve a target analyte(s) in a solution containing the same, the size separation taking place in a chromatography or electrophoresis separation system.
Dvirny, A. I.; Slyn'ko, V. I. E-mail: vitstab@ukr.net
2014-06-01
Inverse theorems to Lyapunov's direct method are established for quasihomogeneous systems of differential equations with impulsive action. Conditions for the existence of Lyapunov functions satisfying typical bounds for quasihomogeneous functions are obtained. Using these results, we establish conditions for an equilibrium of a nonlinear system with impulsive action to be stable, using the properties of a quasihomogeneous approximation to the system. The results are illustrated by an example of a large-scale system with homogeneous subsystems. Bibliography: 30 titles. (paper)
Abdelaziz, Omar; Shrestha, Som S
2014-01-01
Refrigerants are the life-blood of vapor compression systems that are widely used in Heating, Ventilation, Air-Conditioning, and Refrigeration (HVAC&R) applications. The HVAC&R community is currently transitioning from main-stream refrigerants that have high Global Warming Potential (GWP) to alternative lower-GWP refrigerants. During this transition, it is important to account for the life cycle climate performance of alternative refrigerants since their performance will be different than that of higher-GWP refrigerants. This requires the evaluation of the system performance with the new refrigerants. Unfortunately, it is extremely difficult to predict the realistic performance of new alternative refrigerants without experimental validation. One of the main challenges in this regard is modeling the compressor performance with high fidelity due to the complex interaction of operating parameters, geometry, boundary conditions, and fluid properties. High fidelity compressor models are computationally expensive and require significant pre-processing to evaluate the performance of alternative refrigerants. This paper presents a new approach to modeling compressor performance when alternative refrigerants are used. The new modeling concept relies on using existing compressor performance to create an approximate model that captures the dependence of compressor performance on key operating parameters and fluid properties. The model can be built using a myriad of approximation techniques. This paper focuses on Kriging-based techniques to develop higher fidelity approximate compressor models. Baseline and at least one alternative refrigerant performance data are used to build the model. The model accuracy was evaluated by comparing the model results with compressor performance data using other refrigerants. Preliminary results show that the approximate model can predict the compressor mass flow rate and power consumption within 5%.
Density-functional errors in ionization potential with increasing system size
Whittleton, Sarah R.; Sosa Vazquez, Xochitl A.; Isborn, Christine M.; Johnson, Erin R.
2015-05-14
This work investigates the effects of molecular size on the accuracy of density-functional ionization potentials for a set of 28 hydrocarbons, including series of alkanes, alkenes, and oligoacenes. As the system size increases, delocalization error introduces a systematic underestimation of the ionization potential, which is rationalized by considering the fractional-charge behavior of the electronic energies. The computation of the ionization potential with many density-functional approximations is not size-extensive due to excessive delocalization of the incipient positive charge. While inclusion of exact exchange reduces the observed errors, system-specific tuning of long-range corrected functionals does not generally improve accuracy. These results emphasize that good performance of a functional for small molecules is not necessarily transferable to larger systems.
Accuracy considerations for Chebyshev rational approximation method (CRAM) in Burnup calculations
Pusa, M.
2013-07-01
The burnup equations can in principle be solved by computing the exponential of the burnup matrix. However, due to the difficult numerical characteristics of burnup matrices, the problem is extremely stiff and the matrix exponential solution has previously been considered infeasible for an entire burnup system containing over a thousand nuclides. It was recently discovered by the author that the eigenvalues of burnup matrices are generally located near the negative real axis, which prompted introducing the Chebyshev rational approximation method (CRAM) for solving the burnup equations. CRAM can be characterized as the best rational approximation on the negative real axis and it has been shown to be capable of simultaneously solving an entire burnup system both accurately and efficiently. In this paper, the accuracy of CRAM is further studied in the context of burnup equations. The approximation error is analyzed based on the eigenvalue decomposition of the burnup matrix. It is deduced that the relative accuracy of CRAM may be compromised if a nuclide concentration diminishes significantly during the considered time step. Numerical results are presented for two test cases, the first one representing a small burnup system with 36 nuclides and the second one a full a decay system with 1531 nuclides. (authors)
Harsij, Zeynab Mirza, Behrouz
2014-12-15
A helicity entangled tripartite state is considered in which the degree of entanglement is preserved in non-inertial frames. It is shown that Quantum Entanglement remains observer independent. As another measure of quantum correlation, Quantum Discord has been investigated. It is explicitly shown that acceleration has no effect on the degree of quantum correlation for the bipartite and tripartite helicity entangled states. Geometric Quantum Discord as a HilbertSchmidt distance is computed for helicity entangled states. It is shown that living in non-inertial frames does not make any influence on this distance, either. In addition, the analysis has been extended beyond single mode approximation to show that acceleration does not have any impact on the quantum features in the limit beyond the single mode. As an interesting result, while the density matrix depends on the right and left Unruh modes, the Negativity as a measure of Quantum Entanglement remains constant. Also, Quantum Discord does not change beyond single mode approximation. - Highlights: The helicity entangled states here are observer independent in non-inertial frames. It is explicitly shown that Quantum Discord for these states is observer independent. Geometric Quantum Discord is also not affected by acceleration increase. Extending to beyond single mode does not change the degree of entanglement. Beyond single mode approximation the degree of Quantum Discord is also preserved.
Explicit solutions of the radiative transport equation in the P{sub 3} approximation
Liemert, André Kienle, Alwin
2014-11-01
Purpose: Explicit solutions of the monoenergetic radiative transport equation in the P{sub 3} approximation have been derived which can be evaluated with nearly the same computational effort as needed for solving the standard diffusion equation (DE). In detail, the authors considered the important case of a semi-infinite medium which is illuminated by a collimated beam of light. Methods: A combination of the classic spherical harmonics method and the recently developed method of rotated reference frames is used for solving the P{sub 3} equations in closed form. Results: The derived solutions are illustrated and compared to exact solutions of the radiative transport equation obtained via the Monte Carlo (MC) method as well as with other approximated analytical solutions. It is shown that for the considered cases which are relevant for biomedical optics applications, the P{sub 3} approximation is close to the exact solution of the radiative transport equation. Conclusions: The authors derived exact analytical solutions of the P{sub 3} equations under consideration of boundary conditions for defining a semi-infinite medium. The good agreement to Monte Carlo simulations in the investigated domains, for example, in the steady-state and time domains, as well as the short evaluation time needed suggests that the derived equations can replace the often applied solutions of the diffusion equation for the homogeneous semi-infinite medium.
Kraisler, Eli; Kronik, Leeor
2014-05-14
The fundamental gap is a central quantity in the electronic structure of matter. Unfortunately, the fundamental gap is not generally equal to the Kohn-Sham gap of density functional theory (DFT), even in principle. The two gaps differ precisely by the derivative discontinuity, namely, an abrupt change in slope of the exchange-correlation energy as a function of electron number, expected across an integer-electron point. Popular approximate functionals are thought to be devoid of a derivative discontinuity, strongly compromising their performance for prediction of spectroscopic properties. Here we show that, in fact, all exchange-correlation functionals possess a derivative discontinuity, which arises naturally from the application of ensemble considerations within DFT, without any empiricism. This derivative discontinuity can be expressed in closed form using only quantities obtained in the course of a standard DFT calculation of the neutral system. For small, finite systems, addition of this derivative discontinuity indeed results in a greatly improved prediction for the fundamental gap, even when based on the most simple approximate exchange-correlation density functional the local density approximation (LDA). For solids, the same scheme is exact in principle, but when applied to LDA it results in a vanishing derivative discontinuity correction. This failure is shown to be directly related to the failure of LDA in predicting fundamental gaps from total energy differences in extended systems.
Liang, Faming; Cheng, Yichen; Lin, Guang
2014-06-13
Simulated annealing has been widely used in the solution of optimization problems. As known by many researchers, the global optima cannot be guaranteed to be located by simulated annealing unless a logarithmic cooling schedule is used. However, the logarithmic cooling schedule is so slow that no one can afford to have such a long CPU time. This paper proposes a new stochastic optimization algorithm, the so-called simulated stochastic approximation annealing algorithm, which is a combination of simulated annealing and the stochastic approximation Monte Carlo algorithm. Under the framework of stochastic approximation Markov chain Monte Carlo, it is shown that the new algorithm can work with a cooling schedule in which the temperature can decrease much faster than in the logarithmic cooling schedule, e.g., a square-root cooling schedule, while guaranteeing the global optima to be reached when the temperature tends to zero. The new algorithm has been tested on a few benchmark optimization problems, including feed-forward neural network training and protein-folding. The numerical results indicate that the new algorithm can significantly outperform simulated annealing and other competitors.
Reeves, Daniel B. Weaver, John B.
2015-06-21
Magnetic nanoparticles are promising tools for a host of therapeutic and diagnostic medical applications. The dynamics of rotating magnetic nanoparticles in applied magnetic fields depend strongly on the type and strength of the field applied. There are two possible rotation mechanisms and the decision for the dominant mechanism is often made by comparing the equilibrium relaxation times. This is a problem when particles are driven with high-amplitude fields because they are not necessarily at equilibrium at all. Instead, it is more appropriate to consider the “characteristic timescales” that arise in various applied fields. Approximate forms for the characteristic time of Brownian particle rotations do exist and we show agreement between several analytical and phenomenological-fit models to simulated data from a stochastic Langevin equation approach. We also compare several approximate models with solutions of the Fokker-Planck equation to determine their range of validity for general fields and relaxation times. The effective field model is an excellent approximation, while the linear response solution is only useful for very low fields and frequencies for realistic Brownian particle rotations.
Strategic Petroleum Reserve: Analysis of size options
Not Available
1990-02-01
This report presents the results of the deliberations of the interagency group formed to study the costs and benefits of expanding the size of the SPR. The study concentrated on severe oil supply disruptions involving sharp reductions in world oil production that were 2 to 4 times larger than the largest 1970s interruption. The disruption sizes and estimated probability of occurrence of these scenarios were supplied by the CIA. The most critical part of the CIA's analysis was the assessment of likelihood of these cases occurring. The CIA approached the likelihood problem by combining an examination of past oil supply disruptions with qualitative analysis of important oil market and regional trends. The study group then used statistical techniques and probability distributions to synthesize the historical data with CIA evaluations of as yet unobserved events. The SPR size study assumed direct purchases of SPR oil and did not assume the use of alternative financing mechanisms. Members of the working group with foreign policy and national security responsibilities provided an in-depth review of strategic considerations affecting SPR size. A number of prior studies, some classified, have addressed the strategic importance and insurance value of the SPR to the US and its allies. The results of these studies have also been incorporated in the current effort. 10 refs., 5 figs.
Attendees list from the U.S. Department of Energy's High Throughput
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Screening of Hydrogen Storage Materials Workshop on June 26, 2007 | Department of Energy Attendees list from the U.S. Department of Energy's High Throughput Screening of Hydrogen Storage Materials Workshop on June 26, 2007 Attendees list from the U.S. Department of Energy's High Throughput Screening of Hydrogen Storage Materials Workshop on June 26, 2007 Attendees list from the U.S. Department of Energy's Hydrogen Storage Meeting held June 26, 2007 in Bethesda, Maryland. ht_attendees.pdf
2014 SunShot Summit Awardee Poster List | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
2014 SunShot Summit Awardee Poster List 2014 SunShot Summit Awardee Poster List Download an Excel spreadsheet of the names and locations of all SunShot awardee posters in the Technology Forum at the 2014 SunShot Grand Challenge Summit and Peer Review. summit_2014_awardee_posters.xlsx (34.72 KB) More Documents & Publications Technology Forum Map and List of Awardees' Posters and Exhibits Download the Final Agenda SunShot Solar Projects Download
BETO Partner Makes the 2016 CNBC Disruptor Companies List | Department of
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Energy Partner Makes the 2016 CNBC Disruptor Companies List BETO Partner Makes the 2016 CNBC Disruptor Companies List August 23, 2016 - 3:16pm Addthis Carbon recycling company LanzaTech is ranked #13 on CNBC's fourth annual Disruptor 50 list, which recognizes forward-thinking start-up companies whose innovations are revolutionizing the business landscape. LanzaTech produces fuels and chemicals from industrial waste gases-capturing the gases before they are emitted into the atmosphere as
Participant List for the 2010-2025 Scenario Analysis for Hydrogen Fuel Cell
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Vehicles and Infrastructure Meeting on January 31, 2007 | Department of Energy Participant List for the 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure Meeting on January 31, 2007 Participant List for the 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure Meeting on January 31, 2007 This list describes the participants at the 2010-2025 Scenario Analysis for Hydrogen Fuel Cell Vehicles and Infrastructure meeting on January 31, 2007.
EECBG 10-07C/SEP 10-006B Attachment 1: Process Metrics List |
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Department of Energy 10-07C/SEP 10-006B Attachment 1: Process Metrics List EECBG 10-07C/SEP 10-006B Attachment 1: Process Metrics List eecbg_sep_reporting_guidance_attachment_06242011.pdf (56.65 KB) More Documents & Publications EECBG SEP Attachment 1 - Process metric list EECBG Program Notice 10-07A DOE Recovery Act Reporting Requirements for the State Energy Program
Building America List of FY14 by Technology Type | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
List of FY14 by Technology Type Building America List of FY14 by Technology Type This table lists U.S. Department of Energy Building America projects for FY14 by technology type. building_america_fy14projects_technology.pdf (235.46 KB) More Documents & Publications Building America FY14 Research Projects by Research Team Building America FY14 Projects by Building
DE-SOL-0002555 WIPP Solicitation J-23 PART III - LIST OF DOCUMENTS...
U.S. Department of Energy (DOE) - all webpages (Extended Search)
OTHER ATTACHMENTS SECTION J ATTACHMENT F: GUIDANCE FOR PREPARATION OF DIVERSITY PLAN DE-SOL-0002555 WIPP Solicitation J-24 PART III - LIST OF DOCUMENTS, EXHIBITS AND OTHER...
List 1: Eligible Multifamily Buildings 10-CFR-440.22(b)(4)(i) | Department
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
of Energy 1: Eligible Multifamily Buildings 10-CFR-440.22(b)(4)(i) List 1: Eligible Multifamily Buildings 10-CFR-440.22(b)(4)(i) HUD list of multifamily housing units eligible for weatherization that have three or more years remaining on HUD housing contracts. As of December 2014. List 1 consists of three sub-lists: Public Housing - 100% of buildings in the identified properties meet the necessary qualifications Public Housing - Only specified buildings in the identified properties meet the
List 2: Eligible Multifamily Buildings 10-CFR-440.22(b)(4)(ii) | Department
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
of Energy 2: Eligible Multifamily Buildings 10-CFR-440.22(b)(4)(ii) List 2: Eligible Multifamily Buildings 10-CFR-440.22(b)(4)(ii) List 2: Eligible Multifamily Buildings 10-CFR-440.22(b)(4)(ii) HUD list of multifamily housing units eligible for weatherization that have less than three years remaining on HUD housing contracts. As of December 2014. List 2 - multifamily contract_expires_less than 3 yrs 2015 final.xlsx (430.5 KB) More Documents & Publications
Science.gov Mobile makes a second Top Ten list | OSTI, US Dept of Energy
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Office of Scientific and Technical Information Mobile makes a second Top Ten list Back to the OSTI News Listing for 2012 The Science.gov Mobile application has made another Top Ten list. In mid-June the application was named to InformationWeek's Ten Handy Mobile Apps From Uncle Sam and then one week later to the Top Ten in Best Federal Apps by Government Computer News (GCN). The Science.gov Mobile application is the only interagency app to make both lists. The Administration recently issued
RFI Released to Compile Teaming Partner List for Upcoming BENEFIT FOA
Energy Efficiency and Renewable Energy (EERE) is compiling a Teaming Partner List to facilitate the formation of new project teams for the anticipated Buildings Energy Efficiency Frontiers &...
Question of the Week: What Energy-Saving Improvements are on Your To-Do List?
For most people, improving the efficiency of their home is a process. So tell us what energy-saving improvements are on your to-do list?
U.S. Department of Energy (DOE) - all webpages (Extended Search)
J-6-1 ATTACHMENT J.6 LIST OF APPLICABLE DOE DIRECTIVES AND CONTRACTOR REQUIREMENTS DOCUMENTS (LIST B) The following is a list of applicable DOE Directives and Orders appended to this Contract as prescribed in Section I, Clause I.3. This list is not all inclusive. Document Number Title CRD O 150.1 Continuity Programs CRD O 205.1b, Chg.3 DOE Cyber Program CRD O 206.1 DOE Privacy Program CRD O 243.1B, Admin. Chg 1. Records Management Program CRD O 414.1D, Admin Chg 1. Quality Assurance CRD O
Copy of FINAL SG Demo Project List 11 13 09-External.xls | Department...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
of FINAL SG Demo Project List 11 13 09-External.xls More Documents & Publications Smart Grid Regional and Energy Storage Demonstration Projects: Awards Energy Storage Activities...
Sensor Acquisition for Water Utilities: A Survey and Technology List
Alai, M; Glascoe, L; Love, A; Johnson, M; Einfeld, W
2005-03-07
agencies and private companies with the aim of facilitating a water sensor technology acquisition procedure. We provide a survey of previous sensor studies with regard to the use of Early Warning Systems (EWS) including earlier surveys, testing programs, and response studies. In the project we extend this earlier work by developing a list of important sensor specifications that are then used to help assemble a sensor selection criteria. A list of sensor technologies with their specifications is appended to this document. This list will assist the second goal of the project which is a recommendation of candidate technologies for laboratory and field testing.
Shu, Yu-Chen, E-mail: ycshu@mail.ncku.edu.tw [Department of Mathematics, National Cheng Kung University, Tainan 701, Taiwan (China); Mathematics Division, National Center for Theoretical Sciences (South), Tainan 701, Taiwan (China); Chern, I-Liang, E-mail: chern@math.ntu.edu.tw [Department of Applied Mathematics, National Chiao Tung University, Hsin Chu 300, Taiwan (China); Department of Mathematics, National Taiwan University, Taipei 106, Taiwan (China); Mathematics Division, National Center for Theoretical Sciences (Taipei Office), Taipei 106, Taiwan (China); Chang, Chien C., E-mail: mechang@iam.ntu.edu.tw [Institute of Applied Mechanics, National Taiwan University, Taipei 106, Taiwan (China); Department of Mathematics, National Taiwan University, Taipei 106, Taiwan (China)
2014-10-15
Most elliptic interface solvers become complicated for complex interface problems at those exceptional points where there are not enough neighboring interior points for high order interpolation. Such complication increases especially in three dimensions. Usually, the solvers are thus reduced to low order accuracy. In this paper, we classify these exceptional points and propose two recipes to maintain order of accuracy there, aiming at improving the previous coupling interface method [26]. Yet the idea is also applicable to other interface solvers. The main idea is to have at least first order approximations for second order derivatives at those exceptional points. Recipe 1 is to use the finite difference approximation for the second order derivatives at a nearby interior grid point, whenever this is possible. Recipe 2 is to flip domain signatures and introduce a ghost state so that a second-order method can be applied. This ghost state is a smooth extension of the solution at the exceptional point from the other side of the interface. The original state is recovered by a post-processing using nearby states and jump conditions. The choice of recipes is determined by a classification scheme of the exceptional points. The method renders the solution and its gradient uniformly second-order accurate in the entire computed domain. Numerical examples are provided to illustrate the second order accuracy of the presently proposed method in approximating the gradients of the original states for some complex interfaces which we had tested previous in two and three dimensions, and a real molecule ( (1D63)) which is double-helix shape and composed of hundreds of atoms.
DYNAMICAL SPIN SUSCEPTIBILITY IN THE TD-LDA AND QSGW APPROXIMATIONS
SCHILFGAARDE, MARK VAN; KOTANI, TAKAO
2012-10-15
Abstract. This project was aimed at building the transverse dynamical spin susceptibility with the TD-LDA and the recently-developed Quasparticle Self-Consisent Approximations, which determines an optimum quasiparticle picture in a self-consistent manner within the GW approximation. Our main results were published into two papers, (J. Phys. Cond. Matt. 20, 95214 (2008), and Phys. Rev. B83, 060404(R) (2011). In the first paper we present spin wave dispersions for MnO, NiO, and #11;-MnAs based on quasiparticle self-consistent GW approximation (QSGW). For MnO and NiO, QSGW results are in rather good agreement with experiments, in contrast to the LDA and LDA+U descriptions. For #11;-MnAs, we find a collinear ferromagnetic ground state in QSGW, while this phase is unstable in the LDA. In the second, we apply TD-LDA to the CaFeAs2 â?? the first attempt the first ab initio calculation of dynamical susceptibililty in a system with complex electronic structure Magnetic excitations in the striped phase of CaFe2As2 are studied as a function of local moment amplitude. We find a new kind of excitation: sharp resonances of Stoner-like (itinerant) excitations at energies comparable to the N?´eel temperature, originating largely from a narrow band of Fe d states near the Fermi level, and coexisting with more conventional (localized) spin waves. Both kinds of excitations can show multiple branches, highlighting the inadequacy of a description based on a localized spin model.
LAYOUT AND SIZING OF ESF ALCOVES AND REFUGE CHAMBERS
John Beesley and Romeo S. Jurani
1995-08-25
The purpose of this analysis is to establish size requirements and approximate locations of Exploratory Studies Facility (ESF) test and operations alcoves, including refuge chambers during construction of the Topopah Spring (TS) loop. Preliminary conceptual layouts for non-deferred test alcoves will be developed to examine construction feasibility based on current test plans and available equipment. The final location and configuration layout for alcoves will be developed when in-situ rock conditions can be visually determined. This will be after the TBM has excavated beyond the alcove location and the rock has been exposed. The analysis will examine the need for construction of walkways and electrical alcoves in the ramps and main drift. Niches that may be required to accommodate conveyor booster drives and alignments are not included in this analysis. The analysis will develop design criteria for refuge chambers to meet MSHA requirements and will examine the strategic location of refuge chambers based on their potential use in various ESF fire scenarios. This document supersedes DI:BABE00000-01717-0200-00003 Rev 01, ''TS North Ramp Alcove and Stubout Location Analysis'' in its entirety (Reference 5-6).
Sizing wind/photovoltaic hybrids for households in inner Mongolia
Barley, C.D.; Lew, D.J.; Flowers, L.T.
1997-12-31
Approximately 140,000 wind turbines currently provide electricity to about one-third of the non-grid-connected households in Inner Mongolia. However, these households often suffer from a lack of power during the low-wind summer months. This report describes an analysis of hybrid wind/photovoltaic (PV) systems for such households. The sizing of the major components is based on a subjective trade-off between the cost of the system and the percent unmet load, as determined by the Hybrid2 software in conjunction with a simplified time-series model. Actual resource data (wind speed and solar radiation) from the region are processed so as to best represent the scenarios of interest. Small wind turbines of both Chinese and U.S. manufacture are considered in the designs. The results indicate that combinations of wind and PV are more cost-effective than either one alone, and that the relative amount of PV in the design increases as the acceptable unmet load decreases and as the average wind speed decreases.
Parallel FE Approximation of the Even/Odd Parity Form of the Linear Boltzmann Equation
Drumm, Clifton R.; Lorenz, Jens
1999-07-21
A novel solution method has been developed to solve the linear Boltzmann equation on an unstructured triangular mesh. Instead of tackling the first-order form of the equation, this approach is based on the even/odd-parity form in conjunction with the conventional mdtigroup discrete-ordinates approximation. The finite element method is used to treat the spatial dependence. The solution method is unique in that the space-direction dependence is solved simultaneously, eliminating the need for the conventional inner iterations, and the method is well suited for massively parallel computers.
An approximate framework for quantum transport calculation with model order reduction
Chen, Quan; Li, Jun; Yam, Chiyung; Zhang, Yu; Wong, Ngai; Chen, Guanhua
2015-04-01
A new approximate computational framework is proposed for computing the non-equilibrium charge density in the context of the non-equilibrium Green's function (NEGF) method for quantum mechanical transport problems. The framework consists of a new formulation, called the X-formulation, for single-energy density calculation based on the solution of sparse linear systems, and a projection-based nonlinear model order reduction (MOR) approach to address the large number of energy points required for large applied biases. The advantages of the new methods are confirmed by numerical experiments.
p-barp-Annihilation processes in the tree approximation of SU(3) chiral effective theory
Tarasov, V. E.; Kudryavtsev, A. E. Romanov, A. I.; Weinberg, V. M.
2012-12-15
The p-barp-annihilation reactions p-barp {yields} {eta}{eta} {eta} and p-barp {yields} {eta}KK-bar at rest are considered in the tree approximation in the framework of SU(3) chiral effective theory at leading order. The calculated branchings are compared with the data. The results for neutral ({eta}{eta}{eta}, K{sup 0}K-bar{sup 0}{sub {eta}}) and charged (K{sup +}K{sup -}{sub {eta}}) channels are essentially different.
The extraordinary wave excitation in microwave gas breakdown in the adiabatic approximation
Ghorbanalilu, M.; Shokri, B.
2008-09-15
Making use of the electron distribution function formed in the interaction of high-frequency microwave (MW) pulsed fields with a rarefied neutral gas [M. Ghorbanalilu, Phys. Plasmas. 13, 102110 (2006)], the dielectric permittivity tensor of the produced plasma is derived under the condition that the ions are cold and nonmagnetized. According to the adiabatic approximation and using the dielectric permittivity tensor elements the dispersion relations for ordinary and extraordinary excited waves are found. The numerical solution of the dispersion relation shows that the extraordinary modes are unstable in such a nonequilibrium system. These modes are generated in a wide range of wavelengths by tuning the MW field amplitude and magnetic field strength.
Kuang, Y.R. )
1991-08-01
A theoretical method to calculate the {ital K}-shell electron-capture cross section in asymmetric collisions is developed. The correlation effect between the active and the passive electrons and the screening effect in the wave function of the active electron are all considered. Under the Oppenheimer-Brinkman-Kramers approximation, an analytical expression for the total capture cross section is obtained. The calculated results for H{sup +}--carbon, nitrogen, oxygen, neon, argon and He{sup 2+}-neon collisions, at the intermediate-energy region, show very good agreement with available experimental findings. A comparison with other theoretical results is given.
Simplified approach to interacting boson approximation-2 calculations using Hamiltonian invariants
Chou, W.-T.; Zamfir, N. V.; Clark University, Worcester, Massachusetts 01610; National Institute of Physics and Nuclear Engineering, Bucharest, ; Casten, R. F.
2000-07-01
A systematic study of predictions of the interacting boson approximation (IBA)-2 model leads to the identification of two parameter invariants such that calculations with the same values of the invariants yield results that are identical in certain cases and show close similarities under a wider set of conditions. The invariants validate a much-used form of the IBA-2 Hamiltonian and provide a systematic method to simplify IBA-2 calculations by choosing a truncated Hamiltonian with the same invariant values as more general Hamiltonians. (c) 2000 The American Physical Society.
Barrios, Dolores; Lopez, Guillermo L; Martinez-Finkelshtein, A; Torrano, Emilio
1999-04-30
The approximability of the resolvent of an operator induced by a band matrix by the resolvents of its finite-dimensional sections is studied. For bounded perturbations of self-adjoint matrices a positive result is obtained. The convergence domain of the sequence of resolvents can be described in this case in terms of matrices involved in the representation. This result is applied to tridiagonal complex matrices to establish conditions for the convergence of Chebyshev continued fractions on sets in the complex domain. In the particular case of compact perturbations this result is improved and a connection between the poles of the limit function and the eigenvalues of the tridiagonal matrix is established.
Molecular Solid EOS based on Quasi-Harmonic Oscillator approximation for phonons
Menikoff, Ralph
2014-09-02
A complete equation of state (EOS) for a molecular solid is derived utilizing a Helmholtz free energy. Assuming that the solid is nonconducting, phonon excitations dominate the specific heat. Phonons are approximated as independent quasi-harmonic oscillators with vibrational frequencies depending on the specific volume. The model is suitable for calibrating an EOS based on isothermal compression data and infrared/Raman spectroscopy data from high pressure measurements utilizing a diamond anvil cell. In contrast to a Mie-Gr ̈uneisen EOS developed for an atomic solid, the specific heat and Gr ̈uneisen coefficient depend on both density and temperature.
Proton-Nucleus Scattering Approximations and Implications for LHC Crystal Collimation
Noble, Robert; ,
2010-06-07
In particle accelerators, scattered protons with energies close to the incident particles may travel considerable distances with the beam before impacting on accelerator components downstream. To analyze such problems, angular deflection and energy loss of scattered particles are the main quantities to be simulated since these lead to changes in the beam's phase space distribution and particle loss. Simple approximations for nuclear scattering processes causing limited energy loss to high-energy protons traversing matter are developed which are suitable for rapid estimates and reduced-description Monte Carlo simulations. The implications for proton loss in the Large Hadron Collider due to nuclear scattering on collimation crystals are discussed.
Spatiotemporal reconstruction of list-mode PET data
Nichols, Thomas E.; Qi, Jinyi; Asma, Evren; Leahy, Richard M.
2002-03-01
We describe a method for computing a continuous time estimate of tracer density using list-mode positron emission tomography data. The rate function in each voxel is modeled as an inhomogeneous Poisson process whose rate function can be represented using a cubic B-spline basis. The rate functions are estimated by maximizing the likelihood of the arrival times of detected photon pairs over the control vertices of the spline, modified by quadratic spatial and temporal smoothness penalties and a penalty term to enforce nonnegativity. Randoms rate functions are estimated by assuming independence between the spatial and temporal randoms distributions. Similarly, scatter rate functions are estimated by assuming spatiotemporal independence and that the temporal distribution of the scatter is proportional to the temporal distribution of the trues. A quantitative evaluation was performed using simulated data and the method is also demonstrated in a human study using 11C-raclopride.
Explanation of Publication List V7[1][1][2]
U.S. Department of Energy (DOE) - all webpages (Extended Search)
MI-648497 *This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. Explanation o f L ist o f NIF & P S D irectorate R elated P ublications The list c ontains only r efereed j ournal a rticles t hat h ave a t l east o ne a uthor w ho i s a N IF & P S D irectorate T eam M ember. T eam M embers i nclude D irectorate s taff p lus collaborators who a re o n a l ist m aintained by the NIF User Office.
Calibration of optical particle-size analyzer
Pechin, William H.; Thacker, Louis H.; Turner, Lloyd J.
1979-01-01
This invention relates to a system for the calibration of an optical particle-size analyzer of the light-intercepting type for spherical particles, wherein a rotary wheel or disc is provided with radially-extending wires of differing diameters, each wire corresponding to a particular equivalent spherical particle diameter. These wires are passed at an appropriate frequency between the light source and the light detector of the analyzer. The reduction of light as received at the detector is a measure of the size of the wire, and the electronic signal may then be adjusted to provide the desired signal for corresponding spherical particles. This calibrator may be operated at any time without interrupting other processing.
Biomass Engineering: Size reduction, drying and densification
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
2 Biomass Engineering: Size reduction, drying and densification March 25th, 2015 This presentation does not contain any proprietary, confidential, or otherwise restricted information Technology Review Area: Feedstock Supply and Logistics Jaya Shankar Tumuluru (PI) Research Team: Neal Yancey, Craig C Conner, Tyler Westover, Richard McCulloch, Kara Cafferty, and Mitch Plummer Organization: Biofuels and Renewable Energy Technology, Idaho National Laboratory DOE Bioenergy Technologies Office (BETO)
Quantum size effects in classical hadrodynamics
Nix, J.R.
1994-03-01
The author discusses future directions in the development of classical hydrodynamics for extended nucleons, corresponding to nucleons of finite size interacting with massive meson fields. This new theory provides a natural covariant microscopic approach to relativistic nucleus-nucleus collisions that includes automatically spacetime nonlocality and retardation, nonequilibrium phenomena, interactions among all nucleons, and particle production. The present version of the theory includes only the neutral scalar ({sigma}) and neutral vector ({omega}) meson fields. In the future, additional isovector pseudoscalar ({pi}{sup +}, {pi}{sup {minus}}, {pi}{sup 0}), isovector vector ({rho}{sup +}, {rho}{sup {minus}}, {rho}{sup 0}), and neutral pseudoscalar ({eta}) meson fields should be incorporated. Quantum size effects should be included in the equations of motion by use of the spreading function of Moniz and Sharp, which generates an effective nucleon mass density smeared out over a Compton wavelength. However, unlike the situation in electrodynamics, the Compton wavelength of the nucleon is small compared to its radius, so that effects due to the intrinsic size of the nucleon dominate.
Toloczko, M.B.; Garner, F.A.; Eiholzer, C.R.
1998-03-01
Three ferritic alloys were irradiated in two fast reactors to doses of 50 dpa or more at temperatures near 400 C. One martensitic alloy, HT9, was irradiated in both the FFTF and PFR reactors. PFR is the Prototype Fast Reactor in Dourneay, Scotland, and FFTF is the Fast Flux Test Facility in Richland, WA. D57 is a developmental alloy that was irradiated in PFR only, and MA957 is a Y{sub 2}O{sub 3} dispersion-hardened ferritic alloy that was irradiated only in FFTF. These alloys exhibited little or no void swelling at {approximately}400 C. Depending on the alloy starting condition, these steels develop a variety of non-creep strains early in the irradiation that are associated with phase changes. Each of these alloys creeps at a rate that is significantly lower than that of austenitic steels irradiated in the same experiments. The creep compliance for ferritic alloys in general appears to be {approximately}0.5 {times} 10{sup {minus}6} MPa{sup {minus}1} dpa{sup {minus}1}, independent of both composition and starting state. The addition of Y{sub 2}O{sub 3} as a dispersoid does not appear to change the creep behavior.
On the Validity of Certain Approximations Used in the Modeling of Nuclear EMP
Farmer, William A.; Cohen, Bruce I.; Eng, Chester D.
2016-04-01
The legacy codes developed for the modeling of EMP, multiple scattering of Compton electrons has typically been modeled by the obliquity factor. A recent publication has examined this approximation in the context of the generated Compton current [W. A. Farmer and A. Friedman, IEEE Trans. Nucl. Sc. 62, 1695 (2015)]. Here, this previous analysis is extended to include the generation of the electromagnetic fields. Obliquity factor predictions are compared with Monte-Carlo models. In using a Monte-Carlo description of scattering, two distributions of scattering angles are considered: Gaussian and a Gaussian with a single-scattering tail. Additionally, legacy codes also neglect themore » radial derivative of the backward-traveling wave for computational efficiency. The neglect of this derivative improperly treats the backward-traveling wave. Moreover, these approximations are examined in the context of a high-altitude burst, and it is shown that in comparison to more complete models, the discrepancy between field amplitudes is roughly two to three percent and between rise-times, 10%. Finally, it is concluded that the biggest factor in determining the rise time of the signal is not the dynamics of the Compton current, but is instead the conductivity.« less
Raghunathan, Shesha; Brun, Todd A.; Goan, Hsi-Sheng
2010-11-15
A promising technique for measuring single electron spins is magnetic resonance force microscopy (MRFM), in which a microcantilever with a permanent magnetic tip is resonantly driven by a single oscillating spin. The most effective experimental technique is the oscillating cantilever-driven adiabatic reversals (OSCAR) protocol, in which the signal takes the form of a frequency shift. If the quality factor of the cantilever is high enough, this signal will be amplified over time to the point where it can be detected by optical or other techniques. An important requirement, however, is that this measurement process occurs on a time scale that is short compared to any noise which disturbs the orientation of the measured spin. We describe a model of spin noise for the MRFM system and show how this noise is transformed to become time dependent in going to the usual rotating frame. We simplify the description of the cantilever-spin system by approximating the cantilever wave function as a Gaussian wave packet and show that the resulting approximation closely matches the full quantum behavior. We then examine the problem of detecting the signal for a cantilever with thermal noise and spin with spin noise, deriving a condition for this to be a useful measurement.
Thermally-assisted-occupation density functional theory with generalized-gradient approximations
Chai, Jeng-Da
2014-05-14
We extend the recently proposed thermally-assisted-occupation density functional theory (TAO-DFT) [J.-D. Chai, J. Chem. Phys. 136, 154104 (2012)] to generalized-gradient approximation (GGA) exchange-correlation density functionals. Relative to our previous TAO-LDA (i.e., the local density approximation to TAO-DFT), the resulting TAO-GGAs are significantly superior for a wide range of applications, such as thermochemistry, kinetics, and reaction energies. For noncovalent interactions, TAO-GGAs with empirical dispersion corrections are shown to yield excellent performance. Due to their computational efficiency for systems with strong static correlation effects, TAO-LDA and TAO-GGAs are applied to study the electronic properties (e.g., the singlet-triplet energy gaps, vertical ionization potentials, vertical electron affinities, fundamental gaps, and symmetrized von Neumann entropy) of acenes with different number of linearly fused benzene rings (up to 100), which is very challenging for conventional electronic structure methods. The ground states of acenes are shown to be singlets for all the chain lengths studied here. With the increase of acene length, the singlet-triplet energy gaps, vertical ionization potentials, and fundamental gaps decrease monotonically, while the vertical electron affinities and symmetrized von Neumann entropy (i.e., a measure of polyradical character) increase monotonically.
Approximation of functions of variable smoothness by Fourier-Legendre sums
Sharapudinov, I I
2000-06-30
Assume that 0<{mu}{<=}1, and let r{>=}1 be an integer. Let {delta}={l_brace}a{sub 1},...,a{sub l}{r_brace}, where the a{sub i} are points in the interval (-1,1). The classes S{sup r}H{sup {mu}}{sub {delta}} and S{sup r}H{sup {mu}}{sub {delta}}(B) are introduced. These consist of functions with absolutely continuous (r-1)th derivative on [-1,1] such that their rth and (r+1)th derivatives satisfy certain conditions outside the set {delta}. It is proved that for 0<{mu}<1 the Fourier-Legendre sums realize the best approximation in the classes S{sup r}H{sup {mu}}{sub {delta}}(B). Using the Fourier-Legendre expansions, polynomials Y{sub n+2r} of order n+2r are constructed that possess the following property: for 0<{mu}<1 the {nu}th derivative of the polynomial Y{sub n+2r} approximates f{sup ({nu})}(x) (f element of S{sup r}H{sup {mu}}{sub {delta}}) on [-1,1] to within O(n{sup {nu}}{sup +1-r-{mu}}), and the accuracy is of order O(n{sup {nu}}{sup -r-{mu}}) outside {delta}.
Jouvet, Guillaume
2015-04-15
In this paper, a multilayer generalisation of the Shallow Shelf Approximation (SSA) is considered. In this recent hybrid ice flow model, the ice thickness is divided into thin layers, which can spread out, contract and slide over each other in such a way that the velocity profile is layer-wise constant. Like the SSA (1-layer model), the multilayer model can be reformulated as a minimisation problem. However, unlike the SSA, the functional to be minimised involves a new penalisation term for the interlayer jumps of the velocity, which represents the vertical shear stresses induced by interlayer sliding. Taking advantage of this reformulation, numerical solvers developed for the SSA can be naturally extended layer-wise or column-wise. Numerical results show that the column-wise extension of a Newton multigrid solver proves to be robust in the sense that its convergence is barely influenced by the number of layers and the type of ice flow. In addition, the multilayer formulation appears to be naturally better conditioned than the one of the first-order approximation to face the anisotropic conditions of the sliding-dominant ice flow of ISMIP-HOM experiments.
Exact and approximate fermion Green`s functions in QED and QCD
Fried, H.M. [Physics Department, Brown University, Providence, Rhode Island 02912 (United States)] [Physics Department, Brown University, Providence, Rhode Island 02912 (United States); Gabellini, Y. [Institut Non-Lineaire de Nice, 1361, Route des Lucioles, 06560 Valbonne (France)] [Institut Non-Lineaire de Nice, 1361, Route des Lucioles, 06560 Valbonne (France); McKellar, B.H.J. [School of Physics, University of Melbourne, Parkville, Victoria, 3052 (Australia)] [School of Physics, University of Melbourne, Parkville, Victoria, 3052 (Australia)
1995-06-15
That special variant of the Fradkin representation, previously defined for scalar Green`s functions {ital G}{sub {ital c}}({ital x},{ital y}{vert_bar}{ital A}) in an arbitrary potential {ital A}({ital z}), is here extended to the case of vector interactions and spinor Green`s functions of QED and QCD. An exact representation is given which may again be approximated by a finite number {ital N} of quadratures, with the order of magnitude of the errors generated specified in advance, and decreasing with increasing {ital N}. A feature appears for both exact and approximate {ital G}{sub {ital c}}[{ital A}]: the possibility of chaotic behavior of a function central to the representation, which in turn generates chaotic behavior in {ital G}{sub {ital c}}[{ital A}] for certain {ital A}({ital z}). An example is given to show how the general criterion specified here works for a known case of ``quantum chaos,`` in a potential theory context of first quantization. When the full, nonperturbative, radiative corrections of quantum field theory are included, such chaotic effects are removed.
Nikiforov, Alexander; Gamez, Jose A.; Thiel, Walter; Huix-Rotllant, Miquel; Filatov, Michael
2014-09-28
Quantum-chemical computational methods are benchmarked for their ability to describe conical intersections in a series of organic molecules and models of biological chromophores. Reference results for the geometries, relative energies, and branching planes of conical intersections are obtained using ab initio multireference configuration interaction with single and double excitations (MRCISD). They are compared with the results from more approximate methods, namely, the state-interaction state-averaged restricted ensemble-referenced Kohn-Sham method, spin-flip time-dependent density functional theory, and a semiempirical MRCISD approach using an orthogonalization-corrected model. It is demonstrated that these approximate methods reproduce the ab initio reference data very well, with root-mean-square deviations in the optimized geometries of the order of 0.1 or less and with reasonable agreement in the computed relative energies. A detailed analysis of the branching plane vectors shows that all currently applied methods yield similar nuclear displacements for escaping the strong non-adiabatic coupling region near the conical intersections. Our comparisons support the use of the tested quantum-chemical methods for modeling the photochemistry of large organic and biological systems.
Sizing a New Water Heater | Department of Energy
Heat & Cool Water Heating Sizing a New Water Heater Sizing a New Water Heater Is your water heater the right size for you house? | Photo credit ENERGY STAR Is your water ...
Characterization of the homogeneous tissue mixture approximation in breast imaging dosimetry
Sechopoulos, Ioannis; Bliznakova, Kristina; Qin Xulei; Fei Baowei; Feng, Steve Si Jia
2012-08-15
Purpose: To compare the estimate of normalized glandular dose in mammography and breast CT imaging obtained using the actual glandular tissue distribution in the breast to that obtained using the homogeneous tissue mixture approximation. Methods: Twenty volumetric images of patient breasts were acquired with a dedicated breast CT prototype system and the voxels in the breast CT images were automatically classified into skin, adipose, and glandular tissue. The breasts in the classified images underwent simulated mechanical compression to mimic the conditions present during mammographic acquisition. The compressed thickness for each breast was set to that achieved during each patient's last screening cranio-caudal (CC) acquisition. The volumetric glandular density of each breast was computed using both the compressed and uncompressed classified images, and additional images were created in which all voxels representing adipose and glandular tissue were replaced by a homogeneous mixture of these two tissues in a proportion corresponding to each breast's volumetric glandular density. All four breast images (compressed and uncompressed; heterogeneous and homogeneous tissue) were input into Monte Carlo simulations to estimate the normalized glandular dose during mammography (compressed breasts) and dedicated breast CT (uncompressed breasts). For the mammography simulations the x-ray spectra used was that used during each patient's last screening CC acquisition. For the breast CT simulations, two x-ray spectra were used, corresponding to the x-ray spectra with the lowest and highest energies currently being used in dedicated breast CT prototype systems under clinical investigation. The resulting normalized glandular dose for the heterogeneous and homogeneous versions of each breast for each modality was compared. Results: For mammography, the normalized glandular dose based on the homogeneous tissue approximation was, on average, 27% higher than that estimated using the
Size and concentration measurements of particles produced in commercial chromium plating processes
Bonin, M.P.; Flower, W.L.; Renzi, R.F.; Peng, L.W.
1995-11-01
Optical measurements of particle size and concentration were made at the chromium plating tank and exhaust system at a commercial hexavalent chromium plating facility. Particles were examined at three locations in the exhaust system: (1) directly at the hexavalent chromium plating bath surface, (2) at the exit of a cyclone separator located in the exhaust system approximately three to four meters downstream of the bath, and (3) in the exhaust stack, downstream of the induced draft fan and all abatement devices. Particle diameters at the bath surface ranged from 0.3 to 25 {mu}m. Downstream of the cyclone exit and mesh pad filters, particle top sizes were approximately 5 and 0.7 mm, respectively. On a mass basis, the collection efficiency of all abatement devices was 99.997%. Assuming that droplets in the flow consist primarily of water and chromium, correcting the total particle mass flow against water content gives a chromium emission rate of 64,000 {mu}g/hr, which compares favorably with a value of 77,000 {mu}g/hr measured with EPA methods. This initial agreement, which should be validated through additional measurements over a broad range of flow conditions, raises the possibility of continuous monitoring for chromium metal emissions using particle size/mass as a surrogate. 6 refs., 7 figs.
1995-08-01
This document provides a listing of Guidance Documents from the RCRA/CERCLA Division for August 1995. Documents are listed under the following categories: RCRA Guidance Manuals; RCRA Information Briefs; CERCLA Guidance Manuals; CERCLA Regulatory Bulletins; RCRA/CERCLA Guidance Manuals; TSCA Guidance Manuals; TSCA Information Briefs; and, Cross Cut Manuals.
Listing of awardee names: Active awards as of October 5, 1994
Not Available
1994-10-05
This is a listing of awarded active contracts for all US DOE facilities and projects. The information contained in the list includes the awardee name and division responsible for the work, BIN, completion date, a one line description of the work, the vendor ID, city, state, congressional district, the value of the contract and the amount of funds expended to date.
Real-Time Simultaneous Measurements of Size, Density, and Composition...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Simultaneous Measurements of Size, Density, and Composition of Single Ultrafine Diesel Tailpipe Particles Real-Time Simultaneous Measurements of Size, Density, and Composition of ...
Overview of Detailed Chemical Speciation and Particle Sizing...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Detailed Chemical Speciation and Particle Sizing for Diesel Exhaust, Both Real Time and Filter Based Measurements Overview of Detailed Chemical Speciation and Particle Sizing for ...
Sandia Energy - Self-Regulated Fabrication of Size-Controlled...
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Self-Regulated Fabrication of Size-Controlled Quantum Nanostructures Home Highlights - Energy Research Self-Regulated Fabrication of Size-Controlled Quantum Nanostructures Previous...
CBEI: Coordinating RTUs in Small and Medium Sized Commercial...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Coordinating RTUs in Small and Medium Sized Commercial Buildings - 2015 Peer Review CBEI: Coordinating RTUs in Small and Medium Sized Commercial Buildings - 2015 Peer Review ...
Sandia Energy - Enhanced Nanoparticle Size Control by Extending...
U.S. Department of Energy (DOE) - all webpages (Extended Search)
Enhanced Nanoparticle Size Control by Extending LaMer's Mechanism Home Office of Science Enhanced Nanoparticle Size Control by Extending LaMer's Mechanism Previous Next Enhanced...
Development of Model Filtration Media for Investigating Size...
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Model Filtration Media for Investigating Size-Dependent Filtration Efficiency Development of Model Filtration Media for Investigating Size-Dependent Filtration Efficiency A novel ...
AVTA: Full-Size Electric Vehicle Specifications and Test Procedures...
Full-Size Electric Vehicle Specifications and Test Procedures AVTA: Full-Size Electric Vehicle Specifications and Test Procedures EV America Test Specifications (97.12 KB) ...
Finite-size effects of hysteretic dynamics in multilayer graphene...
Office of Scientific and Technical Information (OSTI)
Publisher's Accepted Manuscript: Finite-size effects of hysteretic dynamics in multilayer graphene on a ferroelectric Prev Next Title: Finite-size effects of hysteretic ...
Magnetic agglomeration method for size control in the synthesis...
Office of Scientific and Technical Information (OSTI)
Magnetic agglomeration method for size control in the synthesis of magnetic nanoparticles Title: Magnetic agglomeration method for size control in the synthesis of magnetic ...
Chen, P. H.; Avchachov, K.; Nordlund, K.; Pussi, K.
2013-06-21
Due to the peculiar nature of the atomic order in quasicrystals, examining phase transitions in this class of materials is of particular interest. Energetic particle irradiation can provide a way to modify the structure locally in a quasicrystal. To examine irradiation-induced phase transitions in quasicrystals on the atomic scale, we have carried out molecular dynamics simulations of collision cascades in CaCd{sub 6} quasicrystal cubic approximant with energies up to 10 keV at 0 and 300 K. The results show that the threshold energies depend surprisingly strongly on the local coordination environments. The energy dependence of stable defect formation exhibits a power-law dependence on cascade energy, and surviving defects are dominated by Cd interstitials and vacancies. Only a modest effect of temperature is observed on defect survival, while irradiation temperature increases lead to a slight increase in the average size of both vacancy clusters and interstitial clusters.
Zuehlsdorff, T. J. Payne, M. C.; Hine, N. D. M.; Haynes, P. D.
2015-11-28
We present a solution of the full time-dependent density-functional theory (TDDFT) eigenvalue equation in the linear response formalism exhibiting a linear-scaling computational complexity with system size, without relying on the simplifying Tamm-Dancoff approximation (TDA). The implementation relies on representing the occupied and unoccupied subspaces with two different sets of in situ optimised localised functions, yielding a very compact and efficient representation of the transition density matrix of the excitation with the accuracy associated with a systematic basis set. The TDDFT eigenvalue equation is solved using a preconditioned conjugate gradient algorithm that is very memory-efficient. The algorithm is validated on a small test molecule and a good agreement with results obtained from standard quantum chemistry packages is found, with the preconditioner yielding a significant improvement in convergence rates. The method developed in this work is then used to reproduce experimental results of the absorption spectrum of bacteriochlorophyll in an organic solvent, where it is demonstrated that the TDA fails to reproduce the main features of the low energy spectrum, while the full TDDFT equation yields results in good qualitative agreement with experimental data. Furthermore, the need for explicitly including parts of the solvent into the TDDFT calculations is highlighted, making the treatment of large system sizes necessary that are well within reach of the capabilities of the algorithm introduced here. Finally, the linear-scaling properties of the algorithm are demonstrated by computing the lowest excitation energy of bacteriochlorophyll in solution. The largest systems considered in this work are of the same order of magnitude as a variety of widely studied pigment-protein complexes, opening up the possibility of studying their properties without having to resort to any semiclassical approximations to parts of the protein environment.
Rayleigh approximation to ground state of the Bose and Coulomb glasses
Ryan, S. D.; Mityushev, V.; Vinokur, V. M.; Berlyand, L.
2015-01-16
Glasses are rigid systems in which competing interactions prevent simultaneous minimization of local energies. This leads to frustration and highly degenerate ground states the nature and properties of which are still far from being thoroughly understood. We report an analytical approach based on the method of functional equations that allows us to construct the Rayleigh approximation to the ground state of a two-dimensional (2D) random Coulomb system with logarithmic interactions. We realize a model for 2D Coulomb glass as a cylindrical type II superconductor containing randomly located columnar defects (CD) which trap superconducting vortices induced by applied magnetic field. Ourmore » findings break ground for analytical studies of glassy systems, marking an important step towards understanding their properties.« less
Ou, Qi; Fatehi, Shervin; Alguire, Ethan; Subotnik, Joseph E.; Shao, Yihan
2014-07-14
Working within the Tamm-Dancoff approximation, we calculate the derivative couplings between time-dependent density-functional theory excited states by assuming that the Kohn-Sham superposition of singly excited determinants represents a true electronic wavefunction. All Pulay terms are included in our derivative coupling expression. The reasonability of our approach can be established by noting that, for closely separated electronic states in the infinite basis limit, our final expression agrees exactly with the Chernyak-Mukamel expression (with transition densities from response theory). Finally, we also validate our approach empirically by analyzing the behavior of the derivative couplings around the T{sub 1}/T{sub 2} conical intersection of benzaldehyde.
Li, Xinya; Deng, Z. Daniel; USA, Richland Washington; Sun, Yannan; USA, Richland Washington; Martinez, Jayson J.; USA, Richland Washington; Fu, Tao; USA, Richland Washington; McMichael, Geoffrey A.; et al
2014-11-27
Better understanding of fish behavior is vital for recovery of many endangered species including salmon. The Juvenile Salmon Acoustic Telemetry System (JSATS) was developed to observe the out-migratory behavior of juvenile salmonids tagged by surgical implantation of acoustic micro-transmitters and to estimate the survival when passing through dams on the Snake and Columbia Rivers. A robust three-dimensional solver was needed to accurately and efficiently estimate the time sequence of locations of fish tagged with JSATS acoustic transmitters, to describe in sufficient detail the information needed to assess the function of dam-passage design alternatives. An approximate maximum likelihood solver was developedmore » using measurements of time difference of arrival from all hydrophones in receiving arrays on which a transmission was detected. Field experiments demonstrated that the developed solver performed significantly better in tracking efficiency and accuracy than other solvers described in the literature.« less
Pinto, Sérgio Alexandre; Stadler, Alfred; Gross, Franz
2009-05-01
We present the first calculations of the electromagnetic form factors of ^{3}He and ^{3}H within the framework of the Covariant Spectator Theory (CST). This first exploratory study concentrates on the sensitivity of the form factors to the strength of the scalar meson-nucleon off-shell coupling, known from previous studies to have a strong influence on the three-body binding energy. Results presented here were obtained using the complete impulse approximation (CIA), which includes contributions of relativistic origin that appear as two-body corrections in a non-relativistic framework, such as "Z-graphs," but omits other two and three-body currents. Finally, we compare our results to non-relativistic calculations augmented by relativistic corrections of O(v/c)^{2}.
Pinto, Sergio Alexandre; Stadler, Alfred; Gross, Franz
2009-05-15
We present the first calculations of the electromagnetic form factors of {sup 3}He and {sup 3}H within the framework of the Covariant Spectator Theory (CST). This first exploratory study concentrates on the sensitivity of the form factors to the strength of the scalar meson-nucleon off-shell coupling, known from previous studies to have a strong influence on the three-body binding energy. Results presented here were obtained using the complete impulse approximation (CIA), which includes contributions of relativistic origin that appear as two-body corrections in a nonrelativistic framework, such as 'Z-graphs', but omits other two and three-body currents. We compare our results to nonrelativistic calculations augmented by relativistic corrections of O(v/c){sup 2}.
Alexandre Pinto, SÂ ergio; Stadler, Alfred; Gross, Franz
2009-01-01
We present the first calculations of the electromagnetic form factors of 3He and 3H within the framework of the Covariant Spectator Theory (CST). This first exploratory study concentrates on the sensitivity of the form factors to the strength of the scalar meson-nucleon off-shell coupling, known from previous studies to have a strong influence on the three-body binding energy. Results presented here were obtained using the complete impulse approximation (CIA), which includes contributions of relativistic origin that appear as two-body corrections in a non-relativistic framework, such as ?Z-graphs?, but omits other two and three-body currents. We compare our results to non-relativistic calculations augmented by relativistic corrections of O(v/c)2.
Li, Xinya; Deng, Z. Daniel; USA, Richland Washington; Sun, Yannan; USA, Richland Washington; Martinez, Jayson J.; USA, Richland Washington; Fu, Tao; USA, Richland Washington; McMichael, Geoffrey A.; USA, Richland Washington; Carlson, Thomas J.; USA, Richland Washington
2014-11-27
Better understanding of fish behavior is vital for recovery of many endangered species including salmon. The Juvenile Salmon Acoustic Telemetry System (JSATS) was developed to observe the out-migratory behavior of juvenile salmonids tagged by surgical implantation of acoustic micro-transmitters and to estimate the survival when passing through dams on the Snake and Columbia Rivers. A robust three-dimensional solver was needed to accurately and efficiently estimate the time sequence of locations of fish tagged with JSATS acoustic transmitters, to describe in sufficient detail the information needed to assess the function of dam-passage design alternatives. An approximate maximum likelihood solver was developed using measurements of time difference of arrival from all hydrophones in receiving arrays on which a transmission was detected. Field experiments demonstrated that the developed solver performed significantly better in tracking efficiency and accuracy than other solvers described in the literature.
Korotkevich, Alexander O.; Lushnikov, Pavel M.; Rose, Harvey A.
2015-01-15
We developed a linear theory of backward stimulated Brillouin scatter (BSBS) of a spatially and temporally random laser beam relevant for laser fusion. Our analysis reveals a new collective regime of BSBS (CBSBS). Its intensity threshold is controlled by diffraction, once cT{sub c} exceeds a laser speckle length, with T{sub c} the laser coherence time. The BSBS spatial gain rate is approximately the sum of that due to CBSBS, and a part which is independent of diffraction and varies linearly with T{sub c}. The CBSBS spatial gain rate may be reduced significantly by the temporal bandwidth of KrF-based laser systems compared to the bandwidth currently available to temporally smoothed glass-based laser systems.
Pulse profiles from spinning neutron stars in the Hartle-Thorne approximation
Psaltis, Dimitrios; Özel, Feryal E-mail: fozel@email.arizone.edu
2014-09-10
We present a new numerical algorithm for the calculation of pulse profiles from spinning neutron stars in the Hartle-Thorne approximation. Our approach allows us to formally take into account the effects of Doppler shifts and aberration, of frame dragging, as well as of the oblateness of the stellar surface and of its quadrupole moment. We confirm an earlier result that neglecting the oblateness of the neutron-star surface leads to ≅ 5%-30% errors in the calculated profiles and further show that neglecting the quadrupole moment of its spacetime leads to ≅ 1%-5% errors at a spin frequency of ≅ 600 Hz. We discuss the implications of our results for the measurements of neutron-star masses and radii with upcoming X-ray missions, such as NASA's NICER and ESA's LOFT.
Kee, E.
1997-01-01
Analysis and measurement experience with fuel assemblies having incomplete control rod insertion at burnups of approximately 40 GWD/MTU is presented. Control rod motion dynamics and simplified structural analyses are presented and compared to measurement data. Fuel assembly growth measurements taken with the plant Refueling Machine Z-Tape are described and presented. Bow measurements (including plug gauging) are described and potential improvements are suggested. The measurements described and analysis performed show that sufficient guide tube bow (either from creep or yield buckling) is present in some high burnup assemblies to stop the control rods before they reach their full limit of travel. Recommendations are made that, if implemented, could improve cost performance related to testing and analysis activities.
Nishikawa, Takeshi
2014-07-15
Most conventional atomic models in a plasma do not treat the effect of the plasma on the free-electron state density. Using a nearest neighbor approximation, the state densities in hydrogenic plasmas for both bound and free electrons were evaluated and the effect of the plasma on the atomic model (especially for the state density of the free electron) was studied. The model evaluates the electron-state densities using the potential distribution formed by the superposition of the Coulomb potentials of two ions. The potential from one ion perturbs the electronic state density on the other. Using this new model, one can evaluate the free-state density without making any ad-hoc assumptions. The resulting contours of the average ionization degree, given as a function of the plasma temperature and density, are shifted slightly to lower temperatures because of the effect of the increasing free-state density.
Sergio Alexandre Pinto, Alfred Stadler, Franz Gross
2009-05-01
We present the first calculations of the electromagnetic form factors of 3He and 3H within the framework of the Covariant Spectator Theory (CST). This first exploratory study concentrates on the sensitivity of the form factors to the strength of the scalar meson-nucleon off-shell coupling, known from previous studies to have a strong influence on the three-body binding energy. Results presented here were obtained using the complete impulse approximation (CIA), which includes contributions of relativistic origin that appear as two-body corrections in a non-relativistic framework, such as #28;Z-graphs#29;, but omits other two and three-body currents. We compare our results to non-relativistic calculations augmented by relativistic corrections of O(v/c)2.
Rayleigh approximation to ground state of the Bose and Coulomb glasses
Ryan, S. D.; Mityushev, V.; Vinokur, V. M.; Berlyand, L.
2015-01-16
Glasses are rigid systems in which competing interactions prevent simultaneous minimization of local energies. This leads to frustration and highly degenerate ground states the nature and properties of which are still far from being thoroughly understood. We report an analytical approach based on the method of functional equations that allows us to construct the Rayleigh approximation to the ground state of a two-dimensional (2D) random Coulomb system with logarithmic interactions. We realize a model for 2D Coulomb glass as a cylindrical type II superconductor containing randomly located columnar defects (CD) which trap superconducting vortices induced by applied magnetic field. Our findings break ground for analytical studies of glassy systems, marking an important step towards understanding their properties.
Low-energy parameters of neutron-neutron interaction in the effective-range approximation
Babenko, V. A.; Petrov, N. M. [National Academy of Sciences of Ukraine, Bogolyubov Institute for Theoretical Physics (Ukraine)
2013-06-15
The effect of the mass difference between the charged and neutral pions on the low-energy parameters of nucleon-nucleon interaction in the {sup 1}S{sub 0} state is studied in the effective-range approximation. On the basis of experimental values of the singlet parameters of neutron-proton scattering and the experimental value of the virtual-state energy for the neutron-neutron systemin the {sup 1}S{sub 0} state, the following values were obtained for the neutron-neutron scattering length and effective range: a{sub nn} = -16.59(117) fm and r{sub nn} = 2.83(11) fm. The calculated values agree well with present-day experimental results.
Wide size range fast integrated mobility spectrometer
Wang, Jian
2013-10-29
A mobility spectrometer to measure a nanometer particle size distribution is disclosed. The mobility spectrometer includes a conduit and a detector. The conduit is configured to receive and provide fluid communication of a fluid stream having a charged nanometer particle mixture. The conduit includes a separator section configured to generate an electrical field of two dimensions transverse to a dimension associated with the flow of the charged nanometer particle mixture through the separator section to spatially separate charged nanometer particles of the charged nanometer particle mixture in said two dimensions. The detector is disposed downstream of the conduit to detect concentration and position of the spatially-separated nanometer particles.
Glass bead size and morphology characteristics in support of Crystal Mist field experiments
Einfeld, W.
1995-03-01
One of the tasks of the Lethality Group within US Army Space and Strategic Defense Command (USASSDC) is the development of a capability to simulate various missile intercept scenarios using computer codes. Currently under development within USASSDC and its various contractor organizations is a group of codes collected under a master code called PEGEM for Post Event Ground Effects Model. Among the various components of the code are modules which are used to predict atmospheric dispersion and transport of particles or droplets following release at the altitude specified in the missile intercept scenario. The atmospheric transport code takes into account various source term data from the intercept such as: initial cloud size; droplet or particle size distribution; and, total mass of agent released. An ongoing USASSDC experimental program termed Crystal Mist involved release of precision glass beads under various altitude and meteorological conditions to assist in validation and refinement of various codes that are components of PEGEM used to predict particle atmospheric transport and diffusion following a missile intercept. Here, soda-lime glass beads used in the Crystal Mist series of atmospheric transport and diffusion tests were characterized by scanning electron microscopy and automated image processing routines in order to fully define their size distributions and morphology. Four bead size classifications ranging from a median count diameter of 45 to 200 micrometers were found to be approximately spherical and to fall within the supplier`s sizing specifications. Log-normal functions fit to the measured size distributions resulted in geometric standard deviations ranging from 1.08 to 1.12, thereby fulfilling the field trial requirements for a relatively narrow bead size distribution.
Quantum Theory of (H,H{Sub 2}) Scattering: Approximate Treatments of Reactive Scattering
Tang, K. T.; Karplus, M.
1970-10-01
A quantum mechanical study is made of reactive scattering in the (H, H{sub 2}) system. The problem is formulated in terms of a form of the distorted-wave Born approximation (DWBA) suitable for collisions in which all particles have finite mass. For certain incident energies, differential and total cross sections, as well as other attributes of the reactive collisions, (e.g. reaction configuration), are determined. Two limiting models in the DWBA formulation are compared; in one, the molecule is unperturbed by the incoming atom and in the other, the molecule adiabatically follows the incoming atom. For thermal incident energies and semi-empirical interaction potential employed, the adiabatic model seems to be more appropriate. Since the DWBA method is too complicated for a general study of the (H, H{sub 2}) reaction, a much simpler approximation method, the “linear model” is developed. This model is very different in concept from treatments in which the three atoms are constrained to move on a line throughout the collision. The present model includes the full three-dimensional aspect of the collision and it is only the evaluation of the transition matrix element itself that is simplified. It is found that the linear model, when appropriately normalized, gives results in good agreement with that of the DWBA method. By application of this model, the energy dependence, rotational state of dependence and other properties of the total and differential reactions cross sections are determined. These results of the quantum mechanical treatment are compared with the classical calculation for the same potential surface. The most important result is that, in agreement with the classical treatment, the differential cross sections are strongly backward peaked at low energies and shifts in the forward direction as the energy increases. Finally, the implications of the present calculations for a theory of chemical kinetics are discussed.
Safety equipment list for the light duty utility arm system
Barnes, G.A.
1998-03-02
The initial issue (Revision 0) of this Safety Equipment List (SEL) for the Light Duty Utility Arm (LDUA) requires an explanation for both its existence and its being what it is. All LDUA documentation leading up to creation of this SEL, and the SEL itself, is predicated on the LDUA only being approved for use in waste tanks designated as Facility Group 3, i.e., it is not approved for use in Facility Group 1 or 2 waste tanks. Facility Group 3 tanks are those in which a spontaneous or induced hydrogen gas release would be small, localized, and would not exceed 25% of the LFL when mixed with the remaining air volume in the dome space; exceeding these parameters is considered unlikely. Thus, from a NFPA flammable gas environment perspective the waste tank interior is not classified as a hazardous location. Furthermore, a hazards identification and evaluation (HNF-SD-WM-HIE-010, REV 0) performed for the LDUA system concluded that the consequences of actual LDUA system postulated accidents in Flammable Gas Facility Group 3 waste tanks would have either NO IMPACT or LOW IMPACT on the offsite public and onsite worker. Therefore, from a flammable gas perspective, there is not a rationale for classifying any of SSCs associated with the LDUA as either Safety Class (SC) or Safety Significant (SS) SSCs, which, by default, categorizes them as General Service (GS) SSCs. It follows then, based on current PHMC procedures (HNF-PRO-704 and HNF-IP-0842, Vol IV, Section 5.2) for SEL creation and content, and from a flammable gas perspective, that an SEL is NOT REQ@D HOWEVER!!! There is both a precedent and a prudency to capture all SSCS, which although GS, contribute to a Defense-In-Depth (DID) approach to the design and use of equipment in potentially flammable gas environments. This Revision 0 of the LDUA SEL has been created to capture these SSCs and they are designated as GS-DID in this document. The specific reasons for doing this are listed.
Jakeman, J. D.; Wildey, T.
2015-01-01
In this paper we present an algorithm for adaptive sparse grid approximations of quantities of interest computed from discretized partial differential equations. We use adjoint-based a posteriori error estimates of the interpolation error in the sparse grid to enhance the sparse grid approximation and to drive adaptivity. We show that utilizing these error estimates provides significantly more accurate functional values for random samples of the sparse grid approximation. We also demonstrate that alternative refinement strategies based upon a posteriori error estimates can lead to further increases in accuracy in the approximation over traditional hierarchical surplus based strategies. Throughout this papermore » we also provide and test a framework for balancing the physical discretization error with the stochastic interpolation error of the enhanced sparse grid approximation.« less
Jakeman, J.D. Wildey, T.
2015-01-01
In this paper we present an algorithm for adaptive sparse grid approximations of quantities of interest computed from discretized partial differential equations. We use adjoint-based a posteriori error estimates of the physical discretization error and the interpolation error in the sparse grid to enhance the sparse grid approximation and to drive adaptivity of the sparse grid. Utilizing these error estimates provides significantly more accurate functional values for random samples of the sparse grid approximation. We also demonstrate that alternative refinement strategies based upon a posteriori error estimates can lead to further increases in accuracy in the approximation over traditional hierarchical surplus based strategies. Throughout this paper we also provide and test a framework for balancing the physical discretization error with the stochastic interpolation error of the enhanced sparse grid approximation.
Right-Sizing Laboratory Equipment Loads
Frenze, David; Greenberg, Steve; Mathew, Paul; Sartor, Dale; Starr, William
2005-11-29
Laboratory equipment such as autoclaves, glass washers, refrigerators, and computers account for a significant portion of the energy use in laboratories. However, because of the general lack of measured equipment load data for laboratories, designers often use estimates based on 'nameplate' rated data, or design assumptions from prior projects. Consequently, peak equipment loads are frequently overestimated. This results in oversized HVAC systems, increased initial construction costs, and increased energy use due to inefficiencies at low part-load operation. This best-practice guide first presents the problem of over-sizing in typical practice, and then describes how best-practice strategies obtain better estimates of equipment loads and right-size HVAC systems, saving initial construction costs as well as life-cycle energy costs. This guide is one in a series created by the Laboratories for the 21st Century ('Labs21') program, a joint program of the U.S. Environmental Protection Agency and U.S. Department of Energy. Geared towards architects, engineers, and facilities managers, these guides provide information about technologies and practices to use in designing, constructing, and operating safe, sustainable, high-performance laboratories.
Parameterizing Size Distribution in Ice Clouds
DeSlover, Daniel; Mitchell, David L.
2009-09-25
PARAMETERIZING SIZE DISTRIBUTIONS IN ICE CLOUDS David L. Mitchell and Daniel H. DeSlover ABSTRACT An outstanding problem that contributes considerable uncertainty to Global Climate Model (GCM) predictions of future climate is the characterization of ice particle sizes in cirrus clouds. Recent parameterizations of ice cloud effective diameter differ by a factor of three, which, for overcast conditions, often translate to changes in outgoing longwave radiation (OLR) of 55 W m-2 or more. Much of this uncertainty in cirrus particle sizes is related to the problem of ice particle shattering during in situ sampling of the ice particle size distribution (PSD). Ice particles often shatter into many smaller ice fragments upon collision with the rim of the probe inlet tube. These small ice artifacts are counted as real ice crystals, resulting in anomalously high concentrations of small ice crystals (D < 100 m) and underestimates of the mean and effective size of the PSD. Half of the cirrus cloud optical depth calculated from these in situ measurements can be due to this shattering phenomenon. Another challenge is the determination of ice and liquid water amounts in mixed phase clouds. Mixed phase clouds in the Arctic contain mostly liquid water, and the presence of ice is important for determining their lifecycle. Colder high clouds between -20 and -36 oC may also be mixed phase but in this case their condensate is mostly ice with low levels of liquid water. Rather than affecting their lifecycle, the presence of liquid dramatically affects the cloud optical properties, which affects cloud-climate feedback processes in GCMs. This project has made advancements in solving both of these problems. Regarding the first problem, PSD in ice clouds are uncertain due to the inability to reliably measure the concentrations of the smallest crystals (D < 100 m), known as the small mode. Rather than using in situ probe measurements aboard aircraft, we employed a treatment of ice cloud
Finite size effects in the static structure factor of dusty plasmas
Davletov, A. E. Yerimbetova, L. T.; Mukhametkarimov, Ye. S.; Ospanova, A. K.
2014-07-15
Based on the previously developed pseudopotential model of the dust particles interaction, which takes into account both the finite size and screening effects, the equilibrium distribution functions are investigated in a broad range of plasma parameters. The treatment stems entirely from the renormalization theory of plasma particles interactions which leads to the so-called generalized Poisson-Boltzmann equation. In particular, an analytical expression for the static structure factor of the dust particles is proposed and its non-monotonic behavior in the hyper-netted chain approximation is found in a specified domain of plasma parameters to indicate the formation of short- or even long-range order in the system.
Offshore Lubricants Market Size | OpenEI Community
OpenEI (Open Energy Information) [EERE & EIA]
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Coal Fired Power Generation Market Size | OpenEI Community
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Sizing a New Water Heater | Department of Energy
Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)
Sizing a New Water Heater Sizing a New Water Heater Is your water heater the right size for you house? | Photo credit ENERGY STARÂ® Is your water heater the right size for you house? | Photo credit ENERGY STAR® A properly sized water heater will meet your household's hot water needs while operating more efficiently. Therefore, before purchasing a water heater, make sure it's the correct size. Here you'll find information about how to size these systems: Tankless or demand-type water heaters
Office of Energy Efficiency and Renewable Energy (EERE)
List of Topics for Interagency Performance & Risk Assessment Community of Practice (P&RA CoP) Discussion
New program sizes pressure-relief drums
Durand, A.A.; Osorio, R.A.; Suarez, R.H.
1996-05-06
In accordance with API Recommended Practice 521, a new procedure has been developed for the design of relief drums. The calculation method determines by convergence the most economical length-to-diameter ratio for gas-liquid separation vessels. Drum sizing is based on the separation of a two-phase stream, taking into account the special condition of intermittent flow. Design parameters such as settling velocity and residence time also must be calculated to determine an optimum design. A new program based on a programmable algorithm can be converted from basic language to any other computer language to facilitate vessel-design computations. The program quickly and efficiently computes design values for relief systems used in refineries and petrochemical plants.
Shoosing the appropriate size wind turbine
Lynette, R.
1996-12-31
Within the past several years, wind turbines rated at 400 kW and higher have been introduced into the market, and some manufacturers are developing machines rated at 750 - 1,000+ kW. This raises the question: What is the appropriate size for utility-grade wind turbines today? The answer depends upon the site where the machines will be used and the local conditions. The issues discussed in the paper are: (1) Site-Related (a) Visual, noise, erosion, television interference, interference with aviation (b) Siting efficiency (2) Logistics (a) Adequacy of roads and bridges to accept large vehicles (b) Availability and cost of cranes for erection and maintenance (c) Capability of local repair/overhauls (3) Cost Effectiveness (a) Capital costs (1) Wind Turbine (2) Infrastructure costs (b) Maintenance costs (4) Technical/Financial Risk. 1 fig., 1 tab.
Zhang, Y.; Easter, R. C.; Ghan, S. J.; Abdul-Razzak, H.
2002-11-07
We use a 1-D version of a climate-aerosol-chemistry model with both modal and sectional aerosol size representations to evaluate the impact of aerosol size representation on modeling aerosol-cloud interactions in shallow stratiform clouds observed during the 2nd Aerosol Characterization Experiment. Both the modal (with prognostic aerosol number and mass or prognostic aerosol number, surface area and mass, referred to as the Modal-NM and Modal-NSM) and the sectional approaches (with 12 and 36 sections) predict total number and mass for interstitial and activated particles that are generally within several percent of references from a high resolution 108-section approach. The modal approachmore » with prognostic aerosol mass but diagnostic number (referred to as the Modal-M) cannot accurately predict the total particle number and surface areas, with deviations from the references ranging from 7-161%. The particle size distributions are sensitive to size representations, with normalized absolute differences of up to 12% and 37% for the 36- and 12-section approaches, and 30%, 39%, and 179% for the Modal-NSM, Modal-NM, and Modal-M, respectively. For the Modal-NSM and Modal-NM, differences from the references are primarily due to the inherent assumptions and limitations of the modal approach. In particular, they cannot resolve the abrupt size transition between the interstitial and activated aerosol fractions. For the 12- and 36-section approaches, differences are largely due to limitations of the parameterized activation for non-log-normal size distributions, plus the coarse resolution for the 12-section case. Differences are larger both with higher aerosol (i.e., less complete activation) and higher SO2 concentrations (i.e., greater modification of the initial aerosol distribution).« less
Radioactive waste management integrated data base: a bibliography. [Approximately 1100 references
Johnson, C.A.; Garland, P.A.
1980-09-01
The purpose of this indexed bibliography is to organize and collect the literature references on waste generation and treatment, characteristics, inventories, and costs. The references were captured into a searchable information file, and the information file was sorted, indexed, and printed for this bibliography. A completion of approximately 1100 references to nuclear waste management, the first of a series, is completed. Each reference is categorized by waste origin (commercial, defense, institutional, and foreign) and by subject area: (1) high-level wastes, (2) low-level wastes, (3) TRU wastes, (4) airborne wastes, (5) remedial action (formerly utilized sites, surplus facilities, and mill tailings), (6) isolation, (7) transportation, (8) spent fuel, (9) fuel cycle centers, and (10) a general category that covers nonspecific wastes. Five indexes are provided to assist the user in locating documents of interest: author, author affiliation (corporate authority), subject category, keyword, and permuted title. Machine (computer) searches of these indexes can be made specifying multiple constraints if so desired. This bibliography will be periodically updated as new information becomes available. In addition to being used in searches for specific data, the information file can also be used for resource document collection, names and addresses of contacts, and identification of potential sources of data.
Regional Economic Accounting (REAcct). A software tool for rapidly approximating economic impacts
Ehlen, Mark Andrew; Vargas, Vanessa N.; Loose, Verne William; Starks, Shirley J.; Ellebracht, Lory A.
2011-07-01
This paper describes the Regional Economic Accounting (REAcct) analysis tool that has been in use for the last 5 years to rapidly estimate approximate economic impacts for disruptions due to natural or manmade events. It is based on and derived from the well-known and extensively documented input-output modeling technique initially presented by Leontief and more recently further developed by numerous contributors. REAcct provides county-level economic impact estimates in terms of gross domestic product (GDP) and employment for any area in the United States. The process for using REAcct incorporates geospatial computational tools and site-specific economic data, permitting the identification of geographic impact zones that allow differential magnitude and duration estimates to be specified for regions affected by a simulated or actual event. Using these data as input to REAcct, the number of employees for 39 directly affected economic sectors (including 37 industry production sectors and 2 government sectors) are calculated and aggregated to provide direct impact estimates. Indirect estimates are then calculated using Regional Input-Output Modeling System (RIMS II) multipliers. The interdependent relationships between critical infrastructures, industries, and markets are captured by the relationships embedded in the inputoutput modeling structure.
Cosmic histories of star formation and reionization: an analysis with a power-law approximation
Yu, Yun-Wei; Cheng, K.S.; Chu, M.C.; Yeung, S. E-mail: hrspksc@hku.hk E-mail: terryys@gmail.com
2012-07-01
With a simple power-law approximation of high-redshift (?>3.5) star formation history, i.e., ?-dot {sub *}(z)?[(1+z)/4.5]{sup ??}, we investigate the reionization of intergalactic medium (IGM) and the consequent Thomson scattering optical depth for cosmic microwave background (CMB) photons. A constraint on the evolution index ? is derived from the CMB optical depth measured by the Wilkinson Microwave Anisotropy Probe (WMAP) experiment, which reads ? ? 2.18 lg N{sub ?}?3.89, where the free parameter N{sub ?} is the number of the escaped ionizing ultraviolet photons per baryon. At the same time, the redshift z{sub f} at which the IGM is fully ionized can also be expressed as a function of ? as well as N{sub ?}. By further taking into account the implication of the Gunn-Peterson trough observations to quasars for the full reionization redshift, i.e., 6?
Prioritizing the purchase of spare parts using an approximate reasoning models.
Eisenhawer, S. W.; Bott, T. F.; Jackson, J. W.
2001-01-01
The complexity of a spare parts prioritization model should be consonant with the amount and quality of data available to populate it. When production processes are new and the reliability database is sparse and represents primarily expert knowledge, an approximate reasoning (AR) based model is appropriate. AR models are designed to emulate the inferential processes used by experts in making judgments. We have designed and tested such a model for the planned component production process for nuclear weapons at Los Alamos National Laboratory. The model successfully represents the experts knowledge concerning the frequency and consequences of a part failure. The use of linguistic variables provides an adaptable format for eliciting this knowledge and providing a consistent brisis for valuing the effect on production of different parts. Ranking the parts for inclusion in a spare parts inventory is a straightforward transformation of the AR output. The basis for this ranking is directly traceable to the elicitation results. AR-based models are well-suited to prioritization problems with these characteristics.
Hussain, Ibrar; Qadir, Asghar; Mahomed, F. M.
2009-06-15
Since gravitational wave spacetimes are time-varying vacuum solutions of Einstein's field equations, there is no unambiguous means to define their energy content. However, Weber and Wheeler had demonstrated that they do impart energy to test particles. There have been various proposals to define the energy content, but they have not met with great success. Here we propose a definition using 'slightly broken' Noether symmetries. We check whether this definition is physically acceptable. The procedure adopted is to appeal to 'approximate symmetries' as defined in Lie analysis and use them in the limit of the exact symmetry holding. A problem is noted with the use of the proposal for plane-fronted gravitational waves. To attain a better understanding of the implications of this proposal we also use an artificially constructed time-varying nonvacuum metric and evaluate its Weyl and stress-energy tensors so as to obtain the gravitational and matter components separately and compare them with the energy content obtained by our proposal. The procedure is also used for cylindrical gravitational wave solutions. The usefulness of the definition is demonstrated by the fact that it leads to a result on whether gravitational waves suffer self-damping.