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1

NREL: News - NREL Finds Up to 6-cent per Kilowatt-Hour Extra...  

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

714 NREL Finds Up to 6-cent per Kilowatt-Hour Extra Value with Concentrated Solar Power The greater the penetration of renewables in California, the greater the value of CSP with...

2

Sandia National Laboratories: $0.06 per kilowatt-hour for solar electricity  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0 ResourceAwardsSafeguards andSan$0.06 per kilowatt-hour for solar

3

Extendable pipe crawler  

DOE Patents [OSTI]

A pipe crawler having a front leg assembly and a back leg assembly connected together by two air cylinders, each leg assembly having four extendable legs and a pair of actuators for sliding the extendable legs radially outward to increase the range of the legs when the pipe crawler enters a section of a pipe having a larger diameter. The crawler crawls by "inchworm"-like motion, the front leg assembly and back leg assembly alternately engaging and disengaging the wall of the pipe to hold the pipe crawler as the air cylinders alternately advance the front leg assembly and bring up the rear leg assembly. The pair of actuators of each leg assembly are parallel, adjacent and opposing acting so that each slides two adjacent extendable legs radially outward.

Hapstack, Mark (North Augusta, SC)

1991-01-01T23:59:59.000Z

4

Extendable pipe crawler  

DOE Patents [OSTI]

A pipe crawler is described having a front leg assembly and a back leg assembly connected together by two air cylinders, each leg assembly having four extendable legs and a pair of actuators for sliding the extendable legs radially outward to increase the range of the legs when the pipe crawler enters a section of a pipe having a larger diameter. The crawler crawls by inchworm'-like motion, the front leg assembly and back leg assembly alternately engaging and disengaging the wall of the pipe to hold the pipe crawler as the air cylinders alternately advance the front leg assembly and bring up the rear leg assembly. The pair of actuators of each leg assembly are parallel, adjacent and opposing acting so that each slides two adjacent extendable legs radially outward. 5 figures.

Hapstack, M.

1991-05-28T23:59:59.000Z

5

Extended quantum color coding  

SciTech Connect (OSTI)

The quantum color coding scheme proposed by Korff and Kempe [e-print quant-ph/0405086] is easily extended so that the color coding quantum system is allowed to be entangled with an extra auxiliary quantum system. It is shown that in the extended scheme we need only {approx}2{radical}(N) quantum colors to order N objects in large N limit, whereas {approx}N/e quantum colors are required in the original nonextended version. The maximum success probability has asymptotics expressed by the Tracy-Widom distribution of the largest eigenvalue of a random Gaussian unitary ensemble (GUE) matrix.

Hayashi, A.; Hashimoto, T.; Horibe, M. [Department of Applied Physics, Fukui University, Fukui 910-8507 (Japan)

2005-01-01T23:59:59.000Z

6

Extended Hamilton's principle  

E-Print Network [OSTI]

Hamilton's principle is extended to have compatible initial conditions to the strong form. To use a number of computational and theoretical benefits for dynamical systems, the mixed variational formulation is preferred in the systems other than particle systems. With this formulation and the Rayleigh's dissipation function, we could have all the pertinent initial/boundary conditions for both conservative and non-conservative dynamical system. Based upon the extension framework of Hamilton's principle, the numerical method for representative lumped parameter models is also developed through applying Galerkin's method to time domain with the discussion of its numerical properties and simulation results.

Jinkyu Kim

2012-04-02T23:59:59.000Z

7

ARM - SGP Extended Facility  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUC :ProductsSCM Forcing Data DerivedInstrumentsPolarExtended Facility SGP Related

8

Byron Extended Facility  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareersEnergy,ServicesBurningOperationsBusy WeekByron Extended

9

Understanding and Evaluating Extended Surfaces  

E-Print Network [OSTI]

Extended surfaces are widely used in heat transfer equipment in power and process plants. While various types of extended surfaces are used in the industry, this paper will limit the discussions to the widely used configurations in heat recovery...

Ganapathy, V.

10

Average Price (Cents/kilowatthour) by State by Provider, 1990-2013  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:SeadovCooperativeA2.Reformulated, Average RefinerEnergy923Demand9.40 8.95 8.28 8.52

11

Extender for securing a closure  

DOE Patents [OSTI]

An apparatus for securing a closure such as door or a window that opens and closes by movement relative to a fixed structure such as a wall or a floor. Many embodiments provide a device for relocating a padlock from its normal location where it secures a fastener (such as a hasp) to a location for the padlock that is more accessible for locking and unlocking the padlock. Typically an extender is provided, where the extender has a hook at a first end that is disposed through the eye of the staple of the hasp, and at an opposing second end the extender has an annulus, such as a hole in the extender or a loop or ring affixed to the extender. The shackle of the padlock may be disposed through the annulus and may be disposed through the eye of a second staple to secure the door or window in a closed or open position. Some embodiments employ a rigid sheath to enclose at least a portion of the extender. Typically the rigid sheath has an open state where the hook is exposed outside the sheath and a closed state where the hook is disposed within the sheath.

Thomas, II, Patrick A.

2012-10-02T23:59:59.000Z

12

Lightweight extendable and retractable pole  

DOE Patents [OSTI]

A lightweight extendable and retractable telescopic pole is disclosed comprising a plurality of non-metallic telescoping cylinders with sliding and sealing surfaces between the cylinders, a first plug member on the upper end of the smallest cylinder, and a second plug member on the lower end of the largest cylinder, whereby fluid pressure admitted to the largest cylinder will cause the telescoping cylinders to slide relative to one another causing the pole to extend. An elastomeric member connects the first plug member with one of the intermediate cylinders to urge the cylinders back into a collapsed position when the fluid pressure in the cylinders is vented. Annular elastomer members are provided which seal one cylinder to another when the pole is fully extended and further serve to provide a cushion to prevent damage to the cylinders when the pole is urged back into its retractable position by the elastomeric members and the venting of the pressure. A value mechanism associated with the pole is provided to admit a fluid under pressure to the interior of the telescoping cylinders of the pole while pressurizing a pressure relief port having an opening larger than the inlet port in a closed position whereby removal of the pressure on the relief port will cause the relief port to open to quickly lower the pressure in the interior of the telescoping cylinders to thereby assist in the rapid retraction of the extended pole.

Warren, John L. (Santa Barbara, CA); Brandt, James E. (Santa Barbara, CA)

1994-01-01T23:59:59.000Z

13

Extended range chemical sensing apparatus  

DOE Patents [OSTI]

An apparatus is described for sensing chemicals over extended range of concentrations. In particular, first and second sensors each having separate, but overlapping ranges for sensing concentrations of hydrogen are provided. Preferably, the first sensor is a MOS solid state device wherein the metal electrode or gate is a nickel alloy. The second sensor is a chemiresistor comprising a nickel alloy. 6 figures.

Hughes, R.C.; Schubert, W.K.

1994-01-18T23:59:59.000Z

14

Lightweight extendable and retractable pole  

DOE Patents [OSTI]

A lightweight extendable and retractable telescopic pole is disclosed comprising a plurality of non-metallic telescoping cylinders with sliding and sealing surfaces between the cylinders, a first plug member on the upper end of the smallest cylinder, and a second plug member on the lower end of the largest cylinder, whereby fluid pressure admitted to the largest cylinder will cause the telescoping cylinders to slide relative to one another causing the pole to extend. An elastomeric member connects the first plug member with one of the intermediate cylinders to urge the cylinders back into a collapsed position when the fluid pressure in the cylinders is vented. Annular elastomer members are provided which seal one cylinder to another when the pole is fully extended and further serve to provide a cushion to prevent damage to the cylinders when the pole is urged back into its retractable position by the elastomeric members and the venting of the pressure. A value mechanism associated with the pole is provided to admit a fluid under pressure to the interior of the telescoping cylinders of the pole while pressurizing a pressure relief port having an opening larger than the inlet port in a closed position whereby removal of the pressure on the relief port will cause the relief port to open to quickly lower the pressure in the interior of the telescoping cylinders to thereby assist in the rapid retraction of the extended pole. 18 figs.

Warren, J.L.; Brandt, J.E.

1994-08-02T23:59:59.000Z

15

Extended foundations of stochastic prediction  

E-Print Network [OSTI]

The basic purpose of this work was to suggest universal quantitative description of ergodic system intermediate bifurcation and obligatory conditions of this transition. Conditions for existence of phase state and first order phase transition were introduced in terms of energy balance for system volume unit. Extended Fokker - Plank equation with time dependent diffusion factor was formulated. It turned out that for ergodic system with fixed boundary quantized energy spectrum of phase stable states exists. Obtained results may be applied for prediction of ergodic system behavior. If isolation condition is satisfied, phase spectrum quantization allows selecting proper control parameters for system stabilization. Information about current system coarsened energy allows predicting of future stochastic system behavior on the basis of extended Fokker - Plank model.

Sergey Kamenshchikov

2014-06-28T23:59:59.000Z

16

Conditions for Successful Extended Inflation  

E-Print Network [OSTI]

We investigate, in a model-independent way, the conditions required to obtain a satisfactory model of extended inflation in which inflation is brought to an end by a first-order phase transition. The constraints are that the correct present strength of the gravitational coupling is obtained, that the present theory of gravity is satisfactorily close to general relativity, that the perturbation spectra from inflation are compatible with large scale structure observations and that the bubble spectrum produced at the phase transition doesn't conflict with the observed level of microwave background anisotropies. We demonstrate that these constraints can be summarized in terms of the behaviour in the conformally related Einstein frame, and can be compactly illustrated graphically. We confirm the failure of existing models including the original extended inflation model, and construct models, albeit rather contrived ones, which satisfy all existing constraints.

Anne M Green; Andrew R Liddle

1996-06-10T23:59:59.000Z

17

Pipe crawler with extendable legs  

DOE Patents [OSTI]

A pipe crawler for moving through a pipe in inchworm fashion having front and rear leg assemblies separated by air cylinders to increase and decrease the spacing between assemblies. Each leg of the four legs of an assembly is moved between a wall-engaging, extended position and a retracted position by a separate air cylinder. The air cylinders of the leg assemblies are preferably arranged in pairs of oppositely directed cylinders with no pair lying in the same axial plane as another pair. Therefore, the cylinders can be as long a leg assembly is wide and the crawler can crawl through sections of pipes where the diameter is twice that of other sections. The crawler carries a valving system, a manifold to distribute air supplied by a single umbilical air hose to the various air cylinders in a sequence controlled electrically by a controller. The crawler also utilizes a rolling mechanism, casters in this case, to reduce friction between the crawler and pipe wall thereby further extending the range of the pipe crawler.

Zollinger, William T. (3927 Almon Dr., Martinez, GA 30907)

1992-01-01T23:59:59.000Z

18

Pipe crawler with extendable legs  

DOE Patents [OSTI]

A pipe crawler for moving through a pipe in inchworm fashion having front and rear leg assemblies separated by air cylinders to increase and decrease the spacing between assemblies. Each leg of the four legs of an assembly is moved between a wall-engaging, extended position and a retracted position by a separate air cylinder. The air cylinders of the leg assemblies are preferably arranged in pairs of oppositely directed cylinders with no pair lying in the same axial plane as another pair. Therefore, the cylinders can be as long as a leg assembly is wide and the crawler can crawl through sections of pipes where the diameter is twice that of other sections. The crawler carries a valving system, a manifold to distribute air supplied by a single umbilical air hose to the various air cylinders in a sequence controlled electrically by a controller. The crawler also utilizes a rolling mechanism, casters in this case, to reduce friction between the crawler and pipe wall thereby further extending the range of the pipe crawler. 8 figs.

Zollinger, W.T.

1992-06-16T23:59:59.000Z

19

EXTENDED FORMULATIONS FOR PACKING AND PARTITIONING ...  

E-Print Network [OSTI]

The topic of this paper are extended formulations for these orbitopes, i.e., (sim- ple) linear descriptions of ... Extending over pages 18 to. 27, it hardly leaves (not

2008-06-02T23:59:59.000Z

20

Pair extended coupled cluster doubles  

E-Print Network [OSTI]

The accurate and efficient description of strongly correlated systems remains an important challenge for computational methods. Doubly occupied configuration interaction (DOCI), in which all electrons are paired and no correlations which break these pairs are permitted, can in many cases provide an accurate account of strong correlations, albeit at combinatorial computational cost. Recently, there has been significant interest in a method we refer to as pair coupled cluster doubles (pCCD), a variant of coupled cluster doubles in which the electrons are paired. This is simply because pCCD provides energies nearly identical to those of DOCI, but at mean-field computational cost (disregarding the cost of the two-electron integral transformation). Here, we introduce the more complete pair extended coupled cluster doubles (pECCD) approach which, like pCCD, has mean-field cost and reproduces DOCI energetically. We show that unlike pCCD, pECCD also reproduces the DOCI wave function with high accuracy. Moreoever, pEC...

Henderson, Thomas M; Scuseria, Gustavo E

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Extending the Operating Lives of Materials  

ScienceCinema (OSTI)

Metallurgist Paul Jablonski discusses his role in developing processes that extend the operating temperatures and operating lives of materials used in energy applications.

Paul Jablonski

2010-09-01T23:59:59.000Z

22

Extending the Operating Lives of Materials  

SciTech Connect (OSTI)

Metallurgist Paul Jablonski discusses his role in developing processes that extend the operating temperatures and operating lives of materials used in energy applications.

Paul Jablonski

2010-01-26T23:59:59.000Z

23

Apparatus and methods for a human extender  

DOE Patents [OSTI]

A human extender controller for interface between a human operator and a physical object through a physical plant. The human extender controller uses an inner-feedback loop to increase the equivalent damping of the operating system to stabilize the system when it contacts with the environment and reduces the impact of the environment variation by utilizing a high feedback gain, determined by a root locus sketch. Because the stability of the human extender controller of the present invention is greatly enhanced over that of the prior art, the present invention is able to achieve a force reflection ratio 500 to 1 and capable of handling loads above the two (2) ton range.

Jansen, John F. (Knoxville, TN)

2001-01-01T23:59:59.000Z

24

Limitations of extended reach drilling in deepwater  

E-Print Network [OSTI]

As the worldwide search for hydrocarbons continues into the deepwater of the oceans, drilling extended reach wells have helped to drain the fields in the most cost effective way, thus providing the oil and gas industry the cushion to cope...

Akinfenwa, Akinwunmi Adebayo

2000-01-01T23:59:59.000Z

25

PALC: Extending ALC ABoxes with Probabilities  

E-Print Network [OSTI]

on description logics can be found in [BCM+ 03] and [BKW03]. For many applications it is important to extend on probabilities on terminological axioms, see for example [BKW03, Hei94, KLP97]. Notable exceptions are [Jae94, GL

Jäger, Gerhard

26

Extended emission associated with young HII regions  

E-Print Network [OSTI]

We have used the Australia Telescope Compact Array (ATCA) to make observations of a sample of eight young ultra-compact HII regions, selected on the basis that they have associated class II methanol maser emission. We have made observations sensitive to both compact and extended structures and find both to be present in most sources. The scale of the extended emission in our sample is in general less than that observed towards samples based on IRAS properties, or large single-dish flux densities. Our observations are consistent with a scenario where extended and compact radio continuum emission coexists within HII regions for a significant period of time. We suggest that these observations are consistent with a model where HII evolution takes place within hierarchically structured molecular clouds. This model is the subject of a companion paper (Shabala et al. 2005) and addresses both the association between compact and extended emission and UCHII region lifetime problem.

S. P. Ellingsen; S. S. Shabala; S. E. Kurtz

2004-12-06T23:59:59.000Z

27

Extended emission around GPS radio sources  

E-Print Network [OSTI]

Extended radio emission detected around a sample of GHz Peaked Spectrum (GPS) radio sources is discussed. Evidence for extended emission which is related to the GPS source is found in 6 objects out of 33. Three objects are associated with quasars with core-jet pc-scale morphology, and three are identified with galaxies with symmetric (CSO) radio morphology. We conclude that the core-jet GPS quasars are likely to be beamed objects with a continuous supply of energy from the core to the kpc scale. It is also possible that low surface brightness extended radio emission is present in other GPS quasars but the emission is below our detection limit due to the high redshifts of the objects. On the other hand, the CSO/galaxies with extended large scale emission may be rejuvenated sources where the extended emission is the relic of previous activity. In general, the presence of large scale emission associated with GPS galaxies is uncommon, suggesting that in the context of the recurrent activity model, the time scale between subsequent bursts is in general longer than the radiative lifetime of the radio emission from the earlier activity.

C. Stanghellini; C. P. O'Dea; D. Dallacasa; P. Cassaro; S. A. Baum; R. Fanti; C. Fanti

2005-07-21T23:59:59.000Z

28

Extended range radiation dose-rate monitor  

DOE Patents [OSTI]

An extended range dose-rate monitor is provided which utilizes the pulse pileup phenomenon that occurs in conventional counting systems to alter the dynamic response of the system to extend the dose-rate counting range. The current pulses from a solid-state detector generated by radiation events are amplified and shaped prior to applying the pulses to the input of a comparator. The comparator generates one logic pulse for each input pulse which exceeds the comparator reference threshold. These pulses are integrated and applied to a meter calibrated to indicate the measured dose-rate in response to the integrator output. A portion of the output signal from the integrator is fed back to vary the comparator reference threshold in proportion to the output count rate to extend the sensitive dynamic detection range by delaying the asymptotic approach of the integrator output toward full scale as measured by the meter.

Valentine, Kenneth H. (Knoxville, TN)

1988-01-01T23:59:59.000Z

29

Hypothetical Temporal Reasoning with History (Extended Version)  

E-Print Network [OSTI]

a history--encoding based methodology developed by Chomicki for checking dynamic database integrityHypothetical Temporal Reasoning with History Encoding (Extended Version) Marcelo Arenas constraints into a situation­calculus based specification of database updates as proposed by Reiter. By doing

Bertossi, Leopoldo

30

EXTENDING GEOSPATIAL REPOSITORIES WITH GEOSEMANTIC PROXIMITY FUNCTIONALITIES  

E-Print Network [OSTI]

EXTENDING GEOSPATIAL REPOSITORIES WITH GEOSEMANTIC PROXIMITY FUNCTIONALITIES TO FACILITATE THE INTEROPERABILITY OF GEOSPATIAL DATA Jean Brodeur a, b , Yvan Bdard a a Centre for Research in Geomatics, Laval.Bedard@scg.ulaval.ca Commission IV, WG IV/1 KEY WORDS: Geospatial data interoperability, Geospatial repository, Geosemantic

31

Equilibrium Pricing with Positive Externalities (Extended Abstract)  

E-Print Network [OSTI]

a product in the presence of historical externalities? A low introductory price may attract early adoptersEquilibrium Pricing with Positive Externalities (Extended Abstract) Nima Anari1 , Shayan Ehsani1 an item to strategic buyers in the pres- ence of positive historical externalities, where the value

Immorlica, Nicole

32

SF STATE Extended Learning PROFESSIONAL DEVELOPMENT PROGRAM  

E-Print Network [OSTI]

. See www.pmi.org for credential requirements. The current first time pass rate of our students for the PMP Exam is 89%. PMBOK is a registered mark of the Project Management Institute, Inc. The PMI SF State Extended Learning is approved by the Project Management Institute (PMI) as a Registered

33

Semi-Autonomous Intersection Management (Extended Abstract)  

E-Print Network [OSTI]

Semi-Autonomous Intersection Management (Extended Abstract) Tsz-Chiu Au School of Electrical@cs.utexas.edu ABSTRACT Autonomous Intersection Management (AIM) is a reservation-based intersection control protocol. AIM was designed for the time when all, or most, of the vehicles on the road are fully autonomous

Au, Tsz-Chiu

34

EXTENDED PARKING REQUEST COLORADO SCHOOL OF MINES  

E-Print Network [OSTI]

for an extended period of time. Vehicle registration and a valid CSM parking permit must be current and visible: __________________________ Your Permit #: ______________________________ License Plate Number and State of Issue be current and valid thru the expected date of return indicated below * In consideration for being permitted

35

Stone Age Distributed Computing (Extended Abstract)  

E-Print Network [OSTI]

on the first page. Copyrights for components of this work owned by others than ACM must be honored. AbstractingStone Age Distributed Computing (Extended Abstract) Yuval Emek Distributed Computing Group ETH wattenhofer@ethz.ch ABSTRACT A new model that depicts a network of randomized finite state machines operating

36

Extending and implementing RASP Stefania Costantini  

E-Print Network [OSTI]

Extending and implementing RASP Stefania Costantini Universit`a di L'Aquila Stefania Programming), called RASP, standing for ASP with Resources. RASP supports declarative reasoning on production. Finally, we report on raspberry, a prototypical implementation of RASP. This tool consists of a compiler

Formisano, Andrea

37

Column Generation for Extended Formulations - Optimization Online  

E-Print Network [OSTI]

Jul 8, 2011 ... reformulation in order to define a good quality outer approximation of the .... extends to the case where one only has a good reformulation in an ..... by inspection. ..... the formulation is kept under control by way of managing its variables .... ming solution as a hyper-path (associated to a unit flow incoming to

2011-07-08T23:59:59.000Z

38

Small Business Program Extends Hand to Vendors, Entrepreneurs...  

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

Small Business Program Extends Hand to Vendors, Entrepreneurs Throughout Idaho Small Business Program Extends Hand to Vendors, Entrepreneurs Throughout Idaho January 7, 2015 -...

39

DOE Extends Public Comment Period for the Draft Uranium Leasing...  

Office of Environmental Management (EM)

Extends Public Comment Period for the Draft Uranium Leasing Program Programmatic Environmental Impact Statement DOE Extends Public Comment Period for the Draft Uranium Leasing...

40

RFI Deadline Extended and Pre-Solicitation Workshop Announced...  

Office of Environmental Management (EM)

RFI Deadline Extended and Pre-Solicitation Workshop Announced on Fuel Cell Research and Development Needs RFI Deadline Extended and Pre-Solicitation Workshop Announced on Fuel Cell...

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Extending the Temperature Range of Electric Submersible Pumps...  

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

Extending the Temperature Range of Electric Submersible Pumps to 338 C - Hotline IV - High-temperature ESP; 2010 Geothermal Technology Program Peer Review Report Extending the...

42

Fusion Rules for Extended Current Algebras  

E-Print Network [OSTI]

The initial classification of fusion rules have shown that rational conformal field theory is very limited. In this paper we study the fusion rules of extend ed current algebras. Explicit formulas are given for the S matrix and the fusion rules, based on the full splitting of the fixed point fields. We find that in s ome cases sensible fusion rules are obtained, while in others this procedure lea ds to fractional fusion constants.

Ernest Baver; Doron Gepner

1996-01-30T23:59:59.000Z

43

On energy conservation in extended magnetohydrodynamics  

E-Print Network [OSTI]

A systematic study of energy conservation for extended magnetohydrodynamic (MHD) models that include Hall terms and electron inertia is performed. It is observed that commonly used models do not conserve energy in the ideal limit, i.e., when viscosity and resistivity are neglected. In particular, a term in the momentum equation that is often neglected is seen to be needed for conservation of energy.

Kimura, Keiji

2014-01-01T23:59:59.000Z

44

Praxair extending hydrogen pipeline in Southeast Texas  

SciTech Connect (OSTI)

This paper reports that Praxair Inc., an independent corporation created by the spinoff of Union Carbide Corp.'s Linde division, is extending its high purity hydrogen pipeline system from Channelview, Tex., to Port Arthur, Tex. The 70 mile, 10 in. extension begins at a new pressure swing adsorption (PSA) purification unit next to Lyondell Petrochemical Co.'s Channelview plant. The PSA unit will upgrade hydrogen offgas from Lyondell's methanol plant to 99.99% purity hydrogen. The new line, advancing at a rate of about 1 mile/day, will reach its first customer, Star Enterprise's 250,000 b/d Port Arthur refinery, in September.

Not Available

1992-08-24T23:59:59.000Z

45

ESnet Extends 100G Connectivity Across Atlantic  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to UserProduct:DirectivesSAND2015-21271Most FrequentlyESTSCCircuitsExtends

46

Extended Supersymmetry in Gapped and Superconducting Graphene  

E-Print Network [OSTI]

In view of the many quantum field theoretical descriptions of graphene in $2+1$ dimensions, we present another field theoretical feature of graphene, in the presence of defects. Particularly, we shall be interested in gapped graphene in the presence of a domain wall and also for superconducting graphene in the presence of a vortex. As we explicitly demonstrate, the gapped graphene electrons that are localized on the domain wall are associated with four $N=2$ one dimensional supersymmetries, with each pair combining to form an extended $N=4$ supersymmetry with non-trivial topological charges. The case of superconducting graphene is more involved, with the electrons localized on the vortex being associated with $n$ one dimensional supersymmetries, which in turn combine to form an $N=2n$ extended supersymmetry with no-trivial topological charges. As we shall prove, all supersymmetries are unbroken, a feature closely related to the number of the localized fermions and also to the exact form of the associated oper...

Oikonomou, V K

2014-01-01T23:59:59.000Z

47

Extended Supersymmetry in Gapped and Superconducting Graphene  

E-Print Network [OSTI]

In view of the many quantum field theoretical descriptions of graphene in $2+1$ dimensions, we present another field theoretical feature of graphene, in the presence of defects. Particularly, we shall be interested in gapped graphene in the presence of a domain wall and also for superconducting graphene in the presence of a vortex. As we explicitly demonstrate, the gapped graphene electrons that are localized on the domain wall are associated with four $N=2$ one dimensional supersymmetries, with each pair combining to form an extended $N=4$ supersymmetry with non-trivial topological charges. The case of superconducting graphene is more involved, with the electrons localized on the vortex being associated with $n$ one dimensional supersymmetries, which in turn combine to form an $N=2n$ extended supersymmetry with no-trivial topological charges. As we shall prove, all supersymmetries are unbroken, a feature closely related to the number of the localized fermions and also to the exact form of the associated operators. In addition, the corresponding Witten index is invariant under compact and odd perturbations.

V. K. Oikonomou

2014-11-30T23:59:59.000Z

48

Accelerating Cosmologies with Extended Product Spaces  

E-Print Network [OSTI]

Accelerating cosmologies in extra dimensional spaces have been studied. These extra dimensional spaces are products of many spaces. The physical behaviors of accelerating cosmologies are investigated from Einstein's field equation in higher dimensional Friedmann-Robertson-Walker (FRW) universe and superstring/M theory points of view. It is found that if some assumptions of flatness are made for sector of the FRW universe, the remaining sector needs to be hyperbolic. These properties are in parallel with those found in the model of superstring/M theory. The extended product made for the superstring model did not show any more new features other than those already found. A similar accelerating phase of this product space cosmology was found with difference in numerical values of the accelerating period.

Han Siong Ch'ng

2008-10-15T23:59:59.000Z

49

Topological characterization in extended quantum Ising models  

E-Print Network [OSTI]

We show that a class of exactly solvable quantum Ising models, including transverse-field Ising model and anisotropic XY model, can be characterized as the loops in a two-dimensional auxiliary space. The transverse-field Ising model corresponds to a circle and the XY model corresponds to an ellipse, while other models yield a Cardioid, Limacon, Hypocycloid, and Lissajous curves, et al.. It is shown that the variation of the ground state energy density, which is a function of the loop, experiences a non-analytical point when the winding number of the corresponding loop changes. The winding number can serve as a topological quantum number of the quantum phases in the extended quantum Ising model, which sheds some light upon the relation between quantum phase transition and the geometrical order parameter characterizing the phase diagram.

G. Zhang; Z. Song

2015-04-01T23:59:59.000Z

50

Landscape Implications of Extended Higgs Models  

E-Print Network [OSTI]

From several points of view it is strongly suggested that the current universe is unstable and will ultimately decay to one that is exactly supersymmetric (susy). The possibility that atoms and molecules form in this future universe requires that the degenerate electron/selectron mass is non-zero and hence that electroweak symmetry breaking (EWSB) survives the phase transition to exact susy. However, the minimal supersymmetric standard model (MSSM) and several of its extensions have no EWSB in the susy limit. Among the extended higgs models that have been discussed one stands out in this regard. The higgs sector that is revealed at the Large Hadron Collider (LHC) will therefore have implications for the future universe. We also address the question as to whether the transition to the exact susy phase with EWSB is exothermic.

L. Clavelli

2008-09-16T23:59:59.000Z

51

Design of Extended Warranties in Supply Chains under Additive Demand  

E-Print Network [OSTI]

We study the design of extended warranties in a supply chain consisting of a manufacturer and an independent retailer. The manufacturer produces a single product and sells it exclusively through the retailer. The extended ...

Li, Kumpeg; Mallik, Suman; Chhajed, Dilip

2012-01-01T23:59:59.000Z

52

Economic Stimulus Act Extends Renewable Energy Tax Credits |...  

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

Extends Renewable Energy Tax Credits Economic Stimulus Act Extends Renewable Energy Tax Credits February 18, 2009 - 12:22pm Addthis The tax section of the American Recovery and...

53

An Analysis of Two Industrial Assessment Center Extended Assessments  

E-Print Network [OSTI]

The Industrial Assessment Center at Texas A&M University extended assessments by spending about two extra days at each of three manufacturing plants. The extended assessments are characterized by use of sophisticated electronic monitoring equipment...

Farouz, H. E.; Gafford, G. D.; Eggebrecht, J. A.; Heffington, W. M.

54

Curing Cognitive Hiccups: A Defense of The Extended Mind  

E-Print Network [OSTI]

Human cognitive processing, according to the Extended Mind Hypothesis may at times extend into the environment surrounding the organism. Such a view should be contrasted with a nearby, (but much more conservative) view ...

Clark, Andy

2007-01-01T23:59:59.000Z

55

Extending the GHS Weil Descent Attack No Author Given  

E-Print Network [OSTI]

Extending the GHS Weil Descent Attack No Author Given No Institute Given Abstract. In this paper we extend the Weil descent attack due to Gaudry, Hess and Smart (GHS) to a much larger class of elliptic curves. This extended attack applies to elds of composite degree over F2 . The principle behind

Hess, Florian

56

Essays on Extended Service Contracts May 1st, 2008  

E-Print Network [OSTI]

1 Essays on Extended Service Contracts Tao Chen Defense May 1st, 2008 #12;2 Abstract Extended service contracts have been the major profit generator for many consumer electronics retailers of extended service contracts and how the ESC purchase decisions are related to the product purchase decisions

Sadeh, Norman M.

57

Extended Fokker Planck model: properties and solutions  

E-Print Network [OSTI]

In the current paper Fokker Planck model of random walks has been extended to non conservative cases characterized by explicit dependence of diffusion and energy on time. A given generalization allows describing of such non equilibrium processes as Levy flights in a classical differential form without use of fractal PDE. Besides it takes into account mixing properties that are obligatory for a certain class of chaotic systems such as Kolmogorov K system. It was shown that an abnormal transport is a consequence of the equilibrium distortion and not stationary diffusion. The particular case of fixed boundaries was considered. According to the received solutions it was shown that a system structure can resist a weak disturbance in the vicinity of the discrete regimes, defined by a system scale and its nonlinear properties. These regimes correspond to the exponential increase of quasi regular structure fluctuations. Only fast disruption of regime is possible for other states of the system. It leads to an immediate transition to the chaos.

Sergey Kamenshchikov

2014-01-20T23:59:59.000Z

58

Extended Fractal Fits to Riemann Zeros  

E-Print Network [OSTI]

We extend to the first 300 Riemann zeros, the form of analysis reported by us in arXiv:math-ph/0606005, in which the largest study had involved the first 75 zeros. Again, we model the nonsmooth fluctuating part of the Wu-Sprung potential, which reproduces the Riemann zeros, by the alternating-sign sine series fractal of Berry and Lewis A(x,g). Setting the fractal dimension equal to 3/2. we estimate the frequency parameter (g), plus an overall scaling parameter (s) introduced. We search for that pair of parameters (g,s) which minimizes the least-squares fit of the lowest 300 eigenvalues -- obtained by solving the one-dimensional stationary (non-fractal) Schrodinger equation with the trial potential (smooth plus nonsmooth parts) -- to the first 300 Riemann zeros. We randomly sample values within the rectangle 0 fractal supplementation. Some limited improvement is again found. There are two (primary and secondary) quite distinct subdomains, in which the values giving improvements in fit are concentrated.

Paul B. Slater

2007-05-21T23:59:59.000Z

59

Extended silicate dust emission in PG QSOs  

E-Print Network [OSTI]

This paper addresses the origin of the silicate emission observed in PG QSOs, based on observations with the Spitzer Space Telescope. Scenarios based on the unified model suggest that silicate emission in AGN arises mainly from the illuminated faces of the clouds in the torus at temperatures near sublimation. However, detections of silicate emission in Type 2 QSOs, and the estimated cool dust temperatures, argue for a more extended emission region.To investigate this issue we present the mid-infrared spectra of 23 QSOs. These spectra, and especially the silicate emission features at ~10 and ~18 mu can be fitted using dusty narrow line region (NLR) models and a combination of black bodies. The bolometric luminosities of the QSOs allow us to derive the radial distances and covering factors for the silicate-emitting dust. The inferred radii are 100-200 times larger than the dust sublimation radius, much larger than the expected dimensions of the inner torus. Our QSO mid-IR spectra are consistent with the bulk of the silicate dust emission arising from the dust in the innermost parts of the NLR.

M. Schweitzer; B. Groves; H. Netzer; D. Lutz; E. Sturm; A. Contursi; R. Genzel; L. J. Tacconi; S. Veilleux; D. -C. Kim; D. Rupke; A. J. Baker

2008-01-30T23:59:59.000Z

60

Uranium Leasing Program Draft PEIS Public Comment Period Extended...  

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

Uranium Leasing Program Draft PEIS Public Comment Period Extended to May 31, 2013 Draft ULPEIS comment extension community notification041813 (3).pdf More Documents & Publications...

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Multi-unit Auctions with Unknown Supply [Extended Abstract  

E-Print Network [OSTI]

Multi-unit Auctions with Unknown Supply [Extended Abstract] Mohammad Mahdian Microsoft Research Redmond, WA, USA mahdian@microsoft.com Amin Saberi Stanford University Stanford, CA, USA saberi

Saberi, Amin

62

Clinton Extends Moratorium on Nuclear Weapons Testing | National...  

National Nuclear Security Administration (NNSA)

Clinton Extends Moratorium on Nuclear Weapons Testing | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile...

63

Upper crustal faulting in an obliquely extending orogen, structural...  

Open Energy Info (EERE)

eastern California Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Upper crustal faulting in an obliquely extending orogen,...

64

Energy Department And University of California Extend Management...  

National Nuclear Security Administration (NNSA)

Apply for Our Jobs Our Jobs Working at NNSA Blog Home Media Room Press Releases Energy Department And University of California Extend ... Energy Department And University of...

65

Extending the Temperature Range of Electric Submersible Pumps...  

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

0 4.4.5 Extending the Temperature Range of Electric Submersible Pumps to 338 C - Hotline IV - High-temperature ESP Presentation Number: 019 Investigator: Dhruva, Brindesh...

66

Upper crustal structure of an obliquely extending orogen, central...  

Open Energy Info (EERE)

search OpenEI Reference LibraryAdd to library Conference Proceedings: Upper crustal structure of an obliquely extending orogen, central Coso Range, eastern California...

67

Extending Greenland temperature records into the late eighteenth century  

E-Print Network [OSTI]

Extending Greenland temperature records into the late eighteenth century B. M. Vinther,1 K. K records for Greenland reach back to the late nineteenth century at a few sites. Combining early record back to the year 1784. The new extended Greenland temperature record is 9% incomplete. There are

Feigon, Brooke

68

Extending wordnets by learning from multiple resources Benot Sagot+  

E-Print Network [OSTI]

Extending wordnets by learning from multiple resources Benoît Sagot+ , Darja Fiser* + Alpage, INRIA In this paper we present an automatic, language-independent approach to extend an existing wordnet by recycling existing freely available bilingual resources, such as machine-readable dictionaries and on

Paris-Sud XI, Université de

69

ATLAS Muon TGC Trigger Electronics TTC signal distribution Extended URD  

E-Print Network [OSTI]

ATLAS Muon TGC Trigger Electronics TTC signal distribution Extended URD Version 0 June 2000 1 a TTCrx chip which receives signals distributed by the ATLAS central TTC system. The SPP then extracts to the LVDS level, and #12;ATLAS Muon TGC Trigger Electronics TTC signal distribution Extended URD Version 0

Fukunaga, Chikara

70

Compositions of Extended Top-down Tree Transducers  

E-Print Network [OSTI]

initil stte q suh tht q@tA n e rewritten to uF st is shown in PH tht synhronized tree sustitution grmmrsCompositions of Extended Top-down Tree Transducers Andreas Maletti£;1 International Computer of transformations computed by linear extended top-down tree trans- ducers with regular look-ahead is not closed

Reyle, Uwe

71

Effect of different extenders and storage temperatures on sperm viability  

E-Print Network [OSTI]

a split-sample technique, in four different extenders: one for milk (Mi), one for sodium citrate (Na better than both the sodium citrate- and the milk-based extender did when liquid ram semen was stored up to ram spermatozoa and impair fertility [36], fresh diluted and cooled ram semen might be an alternative

Zaragoza, Universidad de

72

Refining and Extending the Business Model with Information Technology: Dell Computer Corporation  

E-Print Network [OSTI]

REFINING ANDEXTENDING THE REFINING AND EXTENDING THE BUSINESS MODELfinal version 5-99.doc REFINING AND EXTENDING THE BUSINESS

Kraemer, Kenneth L; Dedrick, Jason; Yamashiro, Sandra

1999-01-01T23:59:59.000Z

73

Extending and Condensing the Brazos River Basin Water Availability Model  

E-Print Network [OSTI]

of Texas. This report documents an investigation that consisted of developing, testing, and applying procedures for (1) extending WAM hydrology datasets to cover a longer period-of-analysis and (2) condensing WAM water right datasets to focus on a...

Wurbs, Ralph; Kim, T.

74

New Development of Self-Interaction Corrected DFT for Extended...  

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

DFT-SIC calculation can be carried out efficiently even for extended systems. Using this new development the formation energies of defects in 3C-SiC were calculated and compared...

75

Accelerating the development of complex products in extended enterprises  

E-Print Network [OSTI]

This thesis examines strategies to accelerate product development in a large commercial aerospace program structured as an extended enterprise where first and second tier suppliers perform most of the detailed product ...

Dawson, Benjamin Alan

2011-01-01T23:59:59.000Z

76

On the Hardness of Optimal Auctions (Extended Abstract)  

E-Print Network [OSTI]

On the Hardness of Optimal Auctions (Extended Abstract) Amir Ronen #3; Amin Saberi y Abstract We Berkeley. Email: saberi@cc.gatech.edu. problem which is perhaps the most basic in optimal auction design

Saberi, Amin

77

Time Dependent Density Functional Theory Application to Extended Systems  

E-Print Network [OSTI]

Time Dependent Density Functional Theory Application to Extended Systems Francesco Sottile Facility (ETSF) Donostia, 25 July 2007 Time Dependent Density Functional Theory Francesco Sottile #12 Density Functional Theory Francesco Sottile #12;Linear Periodic systems ALDA The Quest for the Holy

Botti, Silvana

78

Accuracy of Reduced and Extended Thin-Wire Kernels  

SciTech Connect (OSTI)

Some results are presented comparing the accuracy of the reduced thin-wire kernel and an extended kernel with exact integration of the 1/R term of the Green's function and results are shown for simple wire structures.

Burke, G J

2008-11-24T23:59:59.000Z

79

Zerocash: Decentralized Anonymous Payments from Bitcoin (extended version)  

E-Print Network [OSTI]

Zerocash: Decentralized Anonymous Payments from Bitcoin (extended version) Eli Ben Bitcoin is the first digital currency to see widespread adoption. Although payments are conducted between pseudonyms, Bitcoin cannot offer strong privacy guarantees: payment transactions are recorded in a public

80

The Omniscient Garbage Collector: a Resource Analysis Framework (extended abstract)  

E-Print Network [OSTI]

The Omniscient Garbage Collector: a Resource Analysis Framework (extended abstract) Aurlien point of view, we develop the omniscient garbage collector (OGC), which decides precisely when the resource index requires an omniscient garbage collector, a NP-complete problem tightly connected

Paris-Sud XI, Universit de

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Microsoft Word - DOE News Release - Public Comment Period Extended...  

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

Period on Proposed Cleanup Plans Extended 60 Days On Oct. 31, 2014 the U.S. Department of Energy (DOE) released two formal Proposed Plans for the decontamination and...

82

Managing Aging Effects on Dry Cask Storage Systems for Extended...  

Office of Environmental Management (EM)

Managing Aging Effects on Dry Cask Storage Systems for Extended Long Term Storage and Transportation of Used Fuel Rev0 Managing Aging Effects on Dry Cask Storage Systems for...

83

EXTENDING CHARACTERS FROM HALL SUBGROUPS GUNTER MALLE AND GABRIEL NAVARRO  

E-Print Network [OSTI]

EXTENDING CHARACTERS FROM HALL SUBGROUPS GUNTER MALLE AND GABRIEL NAVARRO Abstract. Suppose that G AND GABRIEL NAVARRO Lemma 2.1. Suppose that G is -separable and let H be a Hall -subgroup of G. Let L G

Malle, Gunter

84

Generalized covariation and extended Fukushima decompositions for Banach valued processes.  

E-Print Network [OSTI]

Generalized covariation and extended Fukushima decompositions for Banach valued processes corresponding results when B = C([-, 0]) and X = X(·). This will consitute a significant Fukushima decomposition random variables, Malliavin calculus, Generalized Fukushima decomposition. LUISS Guido Carli - Libera

Paris-Sud XI, Université de

85

Kick circulation analysis for extended reach and horizontal wells  

E-Print Network [OSTI]

KICK CIRCULATION ANALYSIS FOR EXTENDED-REACH AND HORIZONTAL WELLS A Thesis by MAXIMILIAN M. LONG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 2004 Major Subject: Petroleum Engineering KICK CIRCULATION ANALYSIS FOR EXTENDED-REACH AND HORIZONTAL WELLS A Thesis by MAXIMILIAN M. LONG Submitted...

Long, Maximilian Mark

2005-02-17T23:59:59.000Z

86

Extended cage adjustable speed electric motors and drive packages  

DOE Patents [OSTI]

The rotor cage of a motor is extended, a second stator is coupled to this extended rotor cage, and the windings have the same number of poles. The motor torque and speed can be controlled by either injecting energy into or extracting energy out from the rotor cage. The motor produces less harmonics than existing doubly-fed motors. Consequently, a new type of low cost, high efficiency drive is produced. 12 figs.

Hsu, J.S.

1999-03-23T23:59:59.000Z

87

Yang-Mills coupling and cosmological duality of extended objects  

E-Print Network [OSTI]

YANG ? MILLS COUPLING AND COSMOLOGICAL DUALITY OF EXTENDED OB JECTS A Thesis by JAN CHRISTOPH PLEFKA Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE December 1992 Major Subject: Physics YANG ? MILLS COUPLING AND COSMOLOGICAL DUALITY OF EXTENDED OBJECTS A Thesis by JAN CHRISTOPH PLEFKA Approved as to style and content by: Micha, el J. D (Chair of Committee) tephen A. Fulling (Member...

Plefka, Jan Christoph

1992-01-01T23:59:59.000Z

88

A subliminal manipulation of the Extended Parallel Process Model  

E-Print Network [OSTI]

the context of skin cancer. The goals of this study were to (1) assess the effects of subliminal embeds as fear appeals (2) within the framework of the Extended Parallel Process Model, the EPPM (Witte, 1992a). While this study demonstrated that subliminal... go unnoticed by individuals (Dixon, 1981). To extend the inquiry into subliminal message processing, this project places embedded pictures (a form of subliminal research) in the context of skin cancer This thesis uses the style of mm ni ' n...

Stephenson, Michael Taylor

1993-01-01T23:59:59.000Z

89

Extended cage adjustable speed electric motors and drive packages  

DOE Patents [OSTI]

The rotor cage of a motor is extended, a second stator is coupled to this extended rotor cage, and the windings have the same number of poles. The motor torque and speed can be controlled by either injecting energy into or extracting energy out from the rotor cage. The motor produces less harmonics than existing doubly-fed motors. Consequently, a new type of low cost, high efficiency drive is produced.

Hsu, John S. (Oak Ridge, TN)

1999-01-01T23:59:59.000Z

90

Extended Emission of Short Gamma-Ray Bursts  

E-Print Network [OSTI]

Preliminary results of our analysis on the extended emission of short/medium duration GRBs observed with Swift/BAT are presented. The Bayesian blocks algorithm is used to analyze the burst durations and the temporal structure of the lightcurves in different energy bands. We show here the results of three bursts (GRBs 050724, 061006 and 070714B) that have a prominent soft extended emission component in our sample. The extended emission of these bursts is a continuous, flickering-liked component, lasting $\\sim 100$ seconds post the GRB trigger at 15-25 keV bands. Without considering this component, the three bursts are classified as short GRBs, with $T_{90}=2\\sim 3$ seconds. GRB 060614 has an emission component similar to the extended emission, but this component has pulse-liked structure, possibly indicating that this emission component is different from that observed in GRBs 050724, 061006, and 070714B. Further analysis on the spectral evolution behavior of the extended emission component is on going.

Lin Lin; En-Wei Liang; Bin-Bin Zhang; Shuang Nan Zhang

2008-09-10T23:59:59.000Z

91

Initial conditions for anisotropic extended-type inflationary universes  

SciTech Connect (OSTI)

Recently, extended-type inflationary universe models have been proposed as an appealing approach for solving most of the cosmological puzzles'' that, in contrast with previous models, do not require a fine-tuning'' for the microphysical parameters present in the effective potential. These scenarios rest on a Brans-Dicke-type theory, where a nonminimal coupling of the form {ital f}({ital cphi}){ital R} is assumed, and it may or may not include a potential for the Brans-Dicke field. In its classical description, different extended inflationary universe scenarios are described, where anisotropy is taken into account. By using the Hartle-Hawking and the Vilenkin boundary conditions for the wave function of the Universe, the probability distributions for the initial states of these extended models in the case of a small anisotropy are determined and discussed.

del Campo, S. (Instituto de Fisica, Universidad Catolica de Valparaiso, Avenida Brasil 2950, Valparaiso (Chile))

1992-05-15T23:59:59.000Z

92

Generalized Extended Lagrangian Born-Oppenheimer Molecular Dynamics  

E-Print Network [OSTI]

Extended Lagrangian Born-Oppenheimer molecular dynamics based on Kohn-Sham density functional theory is generalized in the limit of vanishing self-consistent field optimization prior to the force evaluations. The equations of motion are derived directly from the extended Lagrangian under the condition of an adiabatic separation between the nuclear and the electronic degrees of freedom. We show how this separation is automatically fulfilled and system independent. The generalized equations of motion require only one diagonalization per time step and are applicable to a broader range of materials with improved accuracy and stability compared to previous formulations.

Niklasson, Anders M N

2014-01-01T23:59:59.000Z

93

Reverse Time Migration for Extended Obstacles: Electromagnetic Waves  

E-Print Network [OSTI]

We propose a new single frequency reverse time migration (RTM) algorithm for imaging extended targets using electromagnetic waves. The imaging functional is defined as the imaginary part of the cross-correlation of the Green function for Helmholtz equation and the back-propagated electromagnetic field. The resolution of our RTM method for both penetrable and non-penetrable extended targets is studied by virtue of Helmholtz-Kirchhoff identity for the time-harmonic Maxwell equation. The analysis implies that our imaging functional is always positive and thus may have better stability properties. Numerical examples are provided to demonstrate the powerful imaging quality and confirm our theoretical results.

Junqing Chen; Zhiming Chen; Guanghui Huang

2014-06-10T23:59:59.000Z

94

Solid low level waste forms and extended storage  

SciTech Connect (OSTI)

This paper presents regulatory, technical, and economic aspects of selecting solid waste forms for the extended on-site storage of power plant low level wastes (LLW) in the United States. The author explains current uncertainties and disposal site shortages, defines power plant waste types, addresses regulatory requirements for disposal, discusses basic waste form storage considerations, outlines possible strategies for the management of individual waste types, and offers methodological steps for selecting a waste form for extended storage. Broader issues closely associated with waste form selection are also presented.

Kohout, R. [R. Kohout & Associates, Ltd., Toronto, Ontario (Canada)

1995-11-01T23:59:59.000Z

95

AN EXTENDED CLASS OF NONLINEAR CONJUGATE GRADIENT METHODS \\Lambda  

E-Print Network [OSTI]

AN EXTENDED CLASS OF NONLINEAR CONJUGATE GRADIENT METHODS \\Lambda Y. H. Dai and Y. Yuan State Key 100080, P. R. China. Email: dyh,yyx@lsec.cc.ac.cn Abstract Conjugate gradient methods are very important be analyzed uniformly, conjugate gradient methods are often analyzed individually. Recently, Dai and Yuan

Yuan, Ya-xiang

96

Design of a Extended Kalman Filter for UAV Localization  

E-Print Network [OSTI]

Design of a Extended Kalman Filter for UAV Localization Guoqiang Mao§, Sam Drake and Brian D. O Limited, Canberra, Australia Abstract Unmanned aerial vehicles (UAVs) are increasingly used in military and scientific research. Some miniaturized UAVs rely entirely on the global positioning system (GPS

Mao, Guoqiang

97

Extending the Cell SPE with Energy Efficient Branch Prediction  

E-Print Network [OSTI]

Extending the Cell SPE with Energy Efficient Branch Prediction Martijn Briejer1 , Cor Meenderinck1 , and Ben Juurlink2 1 Delft University of Technology, Delft, the Netherlands cor@ce.et.tudelft.nl 2 Technische Universit¨at Berlin, Berlin, Germany juurlink@cs.tu-berlin.de Abstract. Energy-efficient dynamic

Kuzmanov, Georgi

98

Does increasing model stratospheric resolution improve extended range forecast skill?  

E-Print Network [OSTI]

Does increasing model stratospheric resolution improve extended range forecast skill? Greg Roff,1 forecast skill at high Southern latitudes is explored. Ensemble forecasts are made for two model configurations that differ only in vertical resolution above 100 hPa. An ensemble of twelve 30day forecasts

99

On the Minimum Load Coloring Problem --Extended Abtract--  

E-Print Network [OSTI]

# such that the maximum load, l # := max{r# , b #}, is minimized. In the following we shall skip the term ``maximumOn the Minimum Load Coloring Problem --Extended Abtract-- Nitin Ahuja 1 , Andreas Baltz 2 Abstract. Given a graph G = (V, E) with n vertices, m edges and maximum vertex degree #, the load

Doerr, Benjamin

100

CREATIVE CONCEPTUAL DESIGN: EXTENDING THE SCOPE BY INFUSED DESIGN  

E-Print Network [OSTI]

1 CREATIVE CONCEPTUAL DESIGN: EXTENDING THE SCOPE BY INFUSED DESIGN Offer Shai School of Mechanical infused design that guarantees generating design solutions by transforming systems and methods from remote. This process is partially supported by a computer tool. We describe the method of infused design and illustrate

Shai, Offer

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Critical phenomena of asymmetric nuclear matter in the extended  

E-Print Network [OSTI]

Critical phenomena of asymmetric nuclear matter in the extended Zimanyi-Moszkowski model K nuclear matter produced by heavy-ion reactions is isospin asymmetric. Although the critical exponents. Miyazaki Abstract We have studied the liquid-gas phase transition of warm asymmetric nuclear matter

102

On the algebraization of valuation semantics (extended abstract)  

E-Print Network [OSTI]

On the algebraization of valuation semantics (extended abstract) Carlos Caleiro Ricardo Gon-Tarski method. Nevertheless, many interesting logics fall out of the scope of this approach. It is the case to , that represents the valuation map. Moreover, the two-sorted signature 2 will have the operations of on sort

Lisboa, Universidade Tcnica de

103

System/370 Extended Architecture: Facilities for Virtual Machines  

E-Print Network [OSTI]

p. H. Gum System/370 Extended Architecture: Facilities for Virtual Machines This paper describes the evolution of facilities for virtual machines on IBM System/370 computers, and presents the elements of a new architectural facility designed for the virtual-machine environment. Assists that have been added to various

Yang, Junfeng

104

US Biofuels Baseline and impact of extending the  

E-Print Network [OSTI]

June 2011 US Biofuels Baseline and impact of extending the $0.45 ethanol blenders baseline projections for agricultural and biofuel markets.1 That baseline assumed current biofuel policy for cellulosic biofuels was assumed to expire at the end of 2012. This report compares a slightly modified

Noble, James S.

105

EXTENDING UFDS TO PIDS WITHOUT ADDING UNITS KEITH A. KEARNES  

E-Print Network [OSTI]

EXTENDING UFDS TO PIDS WITHOUT ADDING UNITS KEITH A. KEARNES ABSTRACT. If U is a UFD, then there is a PID P containing U that has the same unit group as U. Moreover, P can be taken so that its field there is a PID P such that (i) P is a proper subring of the real numbers, (ii) P properly contains the ring

Kearnes, Keith A.

106

Extending ballistic graphene FET lumped element models to diffusive devices  

E-Print Network [OSTI]

Extending ballistic graphene FET lumped element models to diffusive devices G Vincenzi1,2 , G graphene field effect device model is presented. The model is based on the "Top-of-the-barrier" approach which is usually valid only for ballistic graphene nanotransistors. Proper modifications are introduced

Paris-Sud XI, Universit de

107

Browser Interfaces and Extended Validation SSL Certificates: An Empirical Study  

E-Print Network [OSTI]

Browser Interfaces and Extended Validation SSL Certificates: An Empirical Study Robert Biddle provided by SSL certificates and browser interfaces in the face of var- ious attacks. As one response, basic SSL server certificates are being demoted to second-class status in conjunction

Van Oorschot, Paul

108

Merging DBMs E#ciently --Extended Abstract Alexandre David 1  

E-Print Network [OSTI]

Merging DBMs E#ciently -- Extended Abstract Alexandre David 1 Department of Computer Science to reduce the number of DBMs in federations by merging them. Federations are unions of DBMs and are used to represent non­convex zones. Inclusion checking between DBMs is a limited technique to reduce the size

David, Alexandre

109

Merging DBMs Efficiently Extended Abstract Alexandre David1  

E-Print Network [OSTI]

Merging DBMs Efficiently ­ Extended Abstract Alexandre David1 Department of Computer Science algorithms to reduce the number of DBMs in federations by merging them. Federations are unions of DBMs and are used to represent non-convex zones. Inclusion checking between DBMs is a limited technique to reduce

David, Alexandre

110

Western Michigan University -Extended University Programs How to Get Started  

E-Print Network [OSTI]

Western Michigan University - Extended University Programs How to Get Started Interested in takingThe first toWestern Michigan University, Office of Admissions,1903W. Michigan Ave,Kalamazoo,MI 49008Western Michigan University,Office of Admissions,1903W.Michigan Ave, Kalamazoo,MI 49008-5211;the other

de Doncker, Elise

111

ATLAS Muon TGC Trigger Electronics Slave Board ASIC Extended URD  

E-Print Network [OSTI]

ATLAS Muon TGC Trigger Electronics Slave Board ASIC Extended URD Version 0 June 2000 1 Slave Board position of a MATRIX while one from the pivot plane specifies one of the raw. Thus the #12;ATLAS Muon TGC at the highest r is selected from each section giving three hits per an SB chip for the wire triplet. #12;ATLAS

Fukunaga, Chikara

112

Prediction Games in Infinitely Rich Worlds [Extended Abstract  

E-Print Network [OSTI]

Prediction Games in Infinitely Rich Worlds [Extended Abstract] Omid Madani madani prediction games may make this massive learning possible. In this paper, we describe prediction games potential of prediction games is in pointing to ways of achieving powerful large-scale learning without

Madani, Omid

113

Extending Mobile Computer Battery Life through Energy-Aware Adaptation  

E-Print Network [OSTI]

Extending Mobile Computer Battery Life through Energy-Aware Adaptation Jason Flinn CMU-CS-01 entity. #12;Keywords: Energy-aware adaptation, application-aware adaptation, power manage- ment, mobile and applications, must also contribute to energy conservation. This dissertation puts forth the claim that energy-aware

114

Extending Mobile Computer Battery Life through EnergyAware Adaptation  

E-Print Network [OSTI]

Extending Mobile Computer Battery Life through EnergyAware Adaptation Jason Flinn CMUCS01 entity. #12; Keywords: Energyaware adaptation, applicationaware adaptation, power manage ment, mobile and applications, must also contribute to energy conservation. This dissertation puts forth the claim that energyaware

Flinn, Jason

115

Cyber Security via Minority Games with Epistatic Signaling (Extended Abstract)  

E-Print Network [OSTI]

Cyber Security via Minority Games with Epistatic Signaling (Extended Abstract) W. Casey, L. Metcalf occurs when deceptions are employed in order to breach the security of the system, thus making the entire profiles (e.g., the distribution of players employing various kinds of vulnerability and threat predictions

Mishra, Bud

116

Voice Quality Evaluation for Wireless Transmission with ROHC (extended version  

E-Print Network [OSTI]

(reduction in header and total packet size), the voice quality, and the delay jitter. Importantly, we employ1 Voice Quality Evaluation for Wireless Transmission with ROHC (extended version and software code encoded voice with ROHC over a wireless link. We first present a tutorial on voice quality evaluation. We

Reisslein, Martin

117

New Blind Signatures Equivalent to Factorization (Extended Abstract)  

E-Print Network [OSTI]

New Blind Signatures Equivalent to Factorization (Extended Abstract) David Pointcheval Jacques Stern Abstract In this paper, we present new blind signature schemes based on the factorization problem. They are the first blind sig- nature schemes proved secure relatively to factorization. By security, we mean

Pointcheval, David

118

Optimal Fractal Coding is NP-Hard1 (Extended Abstract)  

E-Print Network [OSTI]

Optimal Fractal Coding is NP-Hard1 (Extended Abstract) Matthias Ruhl, Hannes Hartenstein Institut f,hartenst@informatik.uni-freiburg.de Abstract In fractal compression a signal is encoded by the parameters of a contractive trans- formation whose fixed point (attractor) is an approximation of the original data. Thus fractal coding can

Reiterer, Harald

119

Extended Response to Weir and Smith Sven E. Wilson  

E-Print Network [OSTI]

Extended Response to Weir and Smith Sven E. Wilson Brigham Young University Benjamin L. Howell University Phone: (801) 422-9018 Email: sven@byu.edu #12;2 Abstract Evidence provided by Weir and Smith and a variety of regression models (including that of Weir and Smith). In particular, our pooled regression

Martinez, Tony R.

120

Extending a characterization of majorization to infinite dimensions  

E-Print Network [OSTI]

We consider recent work linking majorization and trumping, two partial orders that have proven useful with respect to the entanglement transformation problem in quantum information, with general Dirichlet polynomials, Mellin transforms, and completely monotone sequences. We extend a basic majorization result to the more physically realistic infinite-dimensional setting through the use of generalized Dirichlet series and Riemann-Stieltjes integrals.

Rajesh Pereira; Sarah Plosker

2014-05-12T23:59:59.000Z

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Optimal Storage Policies with Wind Forecast Uncertainties [Extended Abstract  

E-Print Network [OSTI]

Optimal Storage Policies with Wind Forecast Uncertainties [Extended Abstract] Nicolas Gast EPFL, IC/LCA2 1015 Lausanne Switzerland nicolas.gast@epfl.ch Dan-Cristian Tomozei EPFL, IC/LCA2 1015 Lausanne Switzerland dan-cristian.tomozei@epfl.ch Jean-Yves Le Boudec EPFL, IC/LCA2 1015 Lausanne Switzerland jean

Dalang, Robert C.

122

Evaluation of the Technical Basis for Extended Dry Storage and  

E-Print Network [OSTI]

-- Executive Summary U.S. Nuclear Waste Technical Review Board December 2010 #12;U.S.U.S. Nuclear Waste Technical Review Board Authors This report was prepared for the U.S. Nuclear Waste Technical Review Board.NWTRB.GOV ii #12;Extended Dry Storage and Transportation of Used Nuclear Fuel U.S. Nuclear Waste Technical

123

The Description Logic ALCN HR+ Extended with Concrete Domains  

E-Print Network [OSTI]

The Description Logic ALCN HR+ Extended with Concrete Domains: A Practically Motivated Approach, role hierarchies, transitively closed roles, generalized concept inclusions, and concrete domains. As in other languages based on concrete domains (e.g. ALC(D)) a so-called ex- istential predicate restriction

Moeller, Ralf

124

The Description Logic ALCNHR + Extended with Concrete Domains  

E-Print Network [OSTI]

The Description Logic ALCNHR + Extended with Concrete Domains: A Practically Motivated Approach restrictions, role hierarchies, transitively closed roles, generalized concept inclusions, and concrete domains. As in other languages based on concrete domains (e.g. ALC(D)) a so­called ex­ istential predicate restriction

Haarslev, Volker

125

Extending Plan Inference Techniques to Recognize Intentions in Information Graphics  

E-Print Network [OSTI]

Extending Plan Inference Techniques to Recognize Intentions in Information Graphics Stephanie Elzer information graphics. Our work is part of a larger project to de- velop an interactive natural language system graphics. 1 Introduction The amount of information available electronically has increased dramatically over

Carberry, Sandra

126

EXTENDING THE DEFINITION OF ENTROPY TO NONEQUILIBRIUM STEADY STATES.  

E-Print Network [OSTI]

## of #. Our definition is based on energy exchanged, uses the microscopic dynamics of the system, and agreesEXTENDING THE DEFINITION OF ENTROPY TO NONEQUILIBRIUM STEADY STATES. by David Ruelle* Abstract. We forces # and maintained at fixed kinetic energy (Hoover­Evans isokinetic thermostat). We assume

127

Extending the analysis of the FlipIt game  

E-Print Network [OSTI]

In this thesis, we extend the game theoretical analysis of the FlipIt game. The game was first articulated and analyzed by Marten van Dijk, Ari Juels, Alina Oprea and Ronald L. Rivest. FlipIt (or otherwise The Game of ...

Rossides, Michalis

2013-01-01T23:59:59.000Z

128

Extending and implementing RASP Andrea Formisano and Davide Petturiti  

E-Print Network [OSTI]

Extending and implementing RASP Andrea Formisano and Davide Petturiti Universit`a di Perugia implementation of RASP has been realized. The tool, named raspberry, consists in a compiler that, given a ground RASP program, produces a pure ASP encoding suitable to be processed by commonly available ASP

Formisano, Andrea

129

Security Policy Testing via Automated Program Code Generation (Extended Abstract)  

E-Print Network [OSTI]

-language-specific coverage crite- ria [5, 6] and test generation algorithms [4, 5]. One limitation of these previous testingSecurity Policy Testing via Automated Program Code Generation (Extended Abstract) Ting Yu North's sophisticated access control policies. Similar to quality assurance of software systems, testing techniques [4

Xie, Tao

130

ECG Fiducial Points Extraction by Extended Kalman Filtering  

E-Print Network [OSTI]

ECG Fiducial Points Extraction by Extended Kalman Filtering Mahsa Akhbari, Mohammad B. Shamsollahi and Christian Jutten Abstract--Most of the clinically useful information in Electro- cardiogram (ECG) signal can be obtained from the intervals, amplitudes and wave shapes (morphologies). The automatic detection of ECG

Paris-Sud XI, Université de

131

E-Print Network 3.0 - arm extended observations Sample Search...  

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

Tadakuma and Robert D. Howe Summary: . Telemanipulation is typically performed using the robot arm's end effecter, but whole-arm manipulation can extend... , this can extend to...

132

Refining and Extending the Business Model with Information Technology: Dell Computer Corporation  

E-Print Network [OSTI]

of Dells Direct Business Model Fuels Fifteenth ConsecutiveAND EXTENDING THE REFINING AND EXTENDING THE BUSINESS MODELBUSINESS MODEL CENTER FOR RESEARCH ON INFORMATION TECHNOLOGY

Kraemer, Kenneth L; Dedrick, Jason; Yamashiro, Sandra

1999-01-01T23:59:59.000Z

133

Extended fluid models: Pressure tensor effects and equilibria  

SciTech Connect (OSTI)

We consider the use of extended fluid models as a viable alternative to computationally demanding kinetic simulations in order to manage the global large scale evolution of a collisionless plasma while accounting for the main effects that come into play when spatial micro-scales of the order of the ion inertial scale d{sub i} and of the thermal ion Larmor radius ?{sub i} are formed. We present an extended two-fluid model that retains finite Larmor radius (FLR) corrections to the ion pressure tensor while electron inertia terms and heat fluxes are neglected. Within this model we calculate analytic FLR plasma equilibria in the presence of a shear flow and elucidate the role of the magnetic field asymmetry. Using a Hybrid Vlasov code, we show that these analytic equilibria offer a significant improvement with respect to conventional magnetohydrodynamic shear-flow equilibria when initializing kinetic simulations.

Cerri, S. S. [Physics Department E. Fermi, University of Pisa and CNISM, Largo B. Pontecorvo 3, 56127 Pisa (Italy) [Physics Department E. Fermi, University of Pisa and CNISM, Largo B. Pontecorvo 3, 56127 Pisa (Italy); Max-Planck-Institut fr Plasmaphysik, EURATOM association, Boltzmannstr. 2, D-85748 Garching (Germany); Henri, P. [Physics Department E. Fermi, University of Pisa and CNISM, Largo B. Pontecorvo 3, 56127 Pisa (Italy) [Physics Department E. Fermi, University of Pisa and CNISM, Largo B. Pontecorvo 3, 56127 Pisa (Italy); Universit de Nice Sophia Antipolis, CNRS, Observatoire de la Cte d'Azur, BP 4229 06304, Nice Cedex 4 (France); Califano, F.; Pegoraro, F. [Physics Department E. Fermi, University of Pisa and CNISM, Largo B. Pontecorvo 3, 56127 Pisa (Italy)] [Physics Department E. Fermi, University of Pisa and CNISM, Largo B. Pontecorvo 3, 56127 Pisa (Italy); Del Sarto, D. [Institut Jean Lamour, UMR 7198 CNRS Universit de Lorraine, BP 239 F-54506 Vandoeuvre les Nancy (France)] [Institut Jean Lamour, UMR 7198 CNRS Universit de Lorraine, BP 239 F-54506 Vandoeuvre les Nancy (France); Faganello, M. [International Institute for Fusion Science/PIIM, UMR 7345 CNRS Aix-Marseille University, Marseille (France)] [International Institute for Fusion Science/PIIM, UMR 7345 CNRS Aix-Marseille University, Marseille (France)

2013-11-15T23:59:59.000Z

134

Superconducting Cosmic Strings and One Dimensional Extended Supersymmetric Algebras  

E-Print Network [OSTI]

In this article we study in detail the supersymmetric structures that underlie the system of fermionic zero modes around a superconducting cosmic string. Particularly, we extend the analysis existing in the literature on the one dimensional $N=2$ supersymmetry and we find multiple $N=2$, $d=1$ supersymmetries. In addition, compact perturbations of the Witten index of the system are performed and we find to which physical situations these perturbations correspond. More importantly, we demonstrate that there exists a much more rich supersymmetric structure underlying the system of fermions with $N_f$ flavors and these are $N$-extended supersymmetric structures with non-trivial topological charges, with "$N$" depending on the fermion flavors.

V. K. Oikonomou

2014-04-30T23:59:59.000Z

135

Estimating Power System Dynamic States Using Extended Kalman Filter  

SciTech Connect (OSTI)

AbstractThe state estimation tools which are currently deployed in power system control rooms are based on a steady state assumption. As a result, the suite of operational tools that rely on state estimation results as inputs do not have dynamic information available and their accuracy is compromised. This paper investigates the application of Extended Kalman Filtering techniques for estimating dynamic states in the state estimation process. The new formulated dynamic state estimation includes true system dynamics reflected in differential equations, not like previously proposed dynamic state estimation which only considers the time-variant snapshots based on steady state modeling. This new dynamic state estimation using Extended Kalman Filter has been successfully tested on a multi-machine system. Sensitivity studies with respect to noise levels, sampling rates, model errors, and parameter errors are presented as well to illustrate the robust performance of the developed dynamic state estimation process.

Huang, Zhenyu; Schneider, Kevin P.; Nieplocha, Jaroslaw; Zhou, Ning

2014-10-31T23:59:59.000Z

136

Wave Speed in the Macroscopic Extended Model for Ultrarelativistic Gases  

E-Print Network [OSTI]

An exact macroscopic extended model for ultrarelativistic gases, with an arbitrary number of moments, is present in the literature. Here we exploit equations determining wave speeds for that model. We find interesting results; for example, the whole system for their determination can be divided into independent subsystems and some, but not all, wave speeds are expressed by rational numbers. Moreover, the extraordinary property that these wave speeds for the macroscopic model are the same of those in the kinetic model, is proved.

F. Borghero; F. Demontis; S. Pennisi

2010-12-07T23:59:59.000Z

137

Black holes in Born-Infeld extended new massive gravity  

SciTech Connect (OSTI)

In this paper we find different types of black holes for the Born-Infeld extended new massive gravity. Our solutions include (un)charged warped (anti-)de Sitter black holes for four and six derivative expanded action. We also look at the black holes in unexpanded Born-Infeld action. In each case we calculate the entropy, angular momentum and mass of the black holes. We also find the central charges for the conformal field theory duals.

Ghodsi, Ahmad; Yekta, Davood Mahdavian [Department of Physics, Ferdowsi University of Mashhad, P.O. Box 1436, Mashhad (Iran, Islamic Republic of)

2011-05-15T23:59:59.000Z

138

E-Port Plus E-Legacy Extender  

E-Print Network [OSTI]

Latitude D/Dock Latitude D/Port Latitude E-Port Plus Latitude E-Port Latitude E-Legacy Extender VGA X X X X S-Video X X Composite Video DVI X X 2 X Display Port 2 X Serial X X X X Parallel X X X X PS Adapter 90W 130W 130W Modular Bay X PCI Slot X Monitor Stand Port X X 160GB HDD Network USB Dimension (Hx

Fiebig, Peter

139

Development of an extended-service coolant filter  

SciTech Connect (OSTI)

An extended-service engine coolant filter has been developed, using conventional supplemental coolant additive (SCA) technology. This has been achieved by the use of a proprietary polymer coating, which delays the release of active engine coolant chemistry. Initial field data show a gradual release pattern for introducing SCA chemistry into the coolant, with complete release typically occurring in the range of 70,000 to 140,000 miles (112,651--225,302 km).

Mitchell, W.A. [BetzDearborn, Crystal Lake, IL (United States). Venture Activities Group; Hudgens, R.D. [Fleetguard/Nelson Inc., Cookeville, TN (United States)

1999-08-01T23:59:59.000Z

140

EXTENDED Ly{alpha} EMISSION AROUND STAR-FORMING GALAXIES  

SciTech Connect (OSTI)

Ly{alpha} photons that escape the interstellar medium of star-forming galaxies may be resonantly scattered by neutral hydrogen atoms in the circumgalactic and intergalactic media, thereby increasing the angular extent of the galaxy's Ly{alpha} emission. We present predictions of this extended, low surface brightness Ly{alpha} emission based on radiative transfer modeling in a cosmological reionization simulation. The extended emission can be detected from stacked narrowband images of Ly{alpha} emitters (LAEs) or of Lyman break galaxies (LBGs). Its average surface brightness profile has a central cusp, then flattens to an approximate plateau beginning at an inner characteristic scale below {approx}0.2 Mpc (comoving), then steepens again beyond an outer characteristic scale of {approx}1 Mpc. The inner scale marks the transition from scattered light of the central source to emission from clustered sources, while the outer scale marks the spatial extent of scattered emission from these clustered sources. Both scales tend to increase with halo mass, UV luminosity, and observed Ly{alpha} luminosity. The extended emission predicted by our simulation is already within reach of deep narrowband photometry using large ground-based telescopes. Such observations would test radiative transfer models of emission from LAEs and LBGs, and they would open a new window on the circumgalactic environment of high-redshift star-forming galaxies.

Zheng Zheng [Yale Center For Astronomy and Astrophysics, Yale University, New Haven, CT 06520 (United States); Cen Renyue [Department of Astrophysical Sciences, Princeton University, Peyton Hall, Ivy Lane, Princeton, NJ 08544 (United States); Weinberg, David [Department of Astronomy, Ohio State University, Columbus, OH 43210 (United States); Trac, Hy [Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213 (United States); Miralda-Escude, Jordi, E-mail: zheng.zheng@yale.edu [Institucio Catalana de Recerca i Estudis Avancats, Barcelona (Spain)

2011-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Extended supernova shock breakout signals from inflated stellar envelopes  

E-Print Network [OSTI]

Stars close to the Eddington luminosity can have large low-density inflated envelopes. We show that the rise times of shock breakout signals from supernovae can be extended significantly if supernova progenitors have an inflated stellar envelope. If the shock breakout occurs in such inflated envelopes, the shock breakout signals diffuse in them, and their rise time can be significantly extended. Then, the rise times of the shock breakout signals are dominated by the diffusion time in the inflated envelope rather than the light-crossing time of the progenitors. We show that our inflated Wolf-Rayet star models whose radii are of the order of the solar radius can have shock breakout signals which are longer than ~100 sec. The existence of inflated envelopes in Wolf-Rayet supernova progenitors may be related to the mysterious long shock breakout signal observed in Type Ib SN 2008D. Extended shock breakout signals may provide evidence for the existence of inflated stellar envelopes and can be used to constrain the...

Moriya, Takashi J; Langer, Norbert

2015-01-01T23:59:59.000Z

142

Extending the useful life of industrial steam turbines  

SciTech Connect (OSTI)

This paper reports that technology, uprating, and steam-path degradation reversal can extend the life and boost the efficiency of aging turbines. With the advent of modern machine tool technology, plus extensive R and D efforts, designers could apply improved bucket designs like the laminar flow design. Today's technology is represented by the Schlict design, which minimizes flow separations and boundary layer losses. Schlict buckets can be retrofitted in most designs as long as the diaphragm is also replaced. Adoption of steam-path design advance developed for new units and degradation reversal are the two areas of greatest opportunity in efficiency improvement of aging steam turbine-generators.

O'Connor, M.F.; Timmerman, D.C. (GE Power Generation, Schenectady, NY (US))

1990-05-01T23:59:59.000Z

143

Unified universe history through phantom extended Chaplygin gas  

E-Print Network [OSTI]

We investigate the universe evolution from inflation to late-time acceleration in a unified way, using a two-component fluid constituted from extended Chaplygin gas alongside a phantom scalar field. We extract solutions for the various cosmological eras, focusing on the behavior of the scale factor, the various density parameters and the equation-of-state parameter. Furthermore, we extract and discuss bouncing solutions. Finally, we examine the perturbations of the model, ensuring about their stability and extracting the predictions for the tensor-to-scalar ratio.

Pourhassan, B

2015-01-01T23:59:59.000Z

144

Two methods extend the operating range of ESP's  

SciTech Connect (OSTI)

This paper reports variable-speed devices (VSD's) and surface choking, two methods for extending the operating range of electrical submersible pumps (ESP's). With this additional operational flexibility, the ESP can be used in wells with rapidly changing productivity and in wells where the productivity has not been thoroughly tested. Before designing and installing an ESP, it is desirable to have tested the well and have knowledge of the well's current (and expected) productivity index (PI) or inflow performance (IPR). This can be done by a portable well-test unit using an ESP or another type of artificial lift device, perhaps installed previously on the well.

Lea, J.F. (Amoco Production Co., Tulsa, OK (USA))

1989-11-27T23:59:59.000Z

145

A linear accelerator couch attachment for extended SSD treatments  

SciTech Connect (OSTI)

An attachment to an existing linear accelerator couch is described that extends the range of SSD's at which patients can be treated. This couch attachment, which is mounted on castors for ease of mobility, is attached to and locks into the rail of the accelerator couch such that the axis of the new device is normal to the existing couch. All motions of this assembly are then under the ocntrol of the existing couch. The overall size of the couch attachment is 215 cm x 90 cm, sufficiently large to treat all cleinically used fields.

Biggs, P.J.; Leong, J.C.

1983-04-01T23:59:59.000Z

146

Extended Coherence Time with Atom-Number Squeezed Sources  

E-Print Network [OSTI]

Coherence properties of Bose-Einstein condensates offer the potential for improved interferometric phase contrast. However, decoherence effects due to the mean-field interaction shorten the coherence time, thus limiting potential sensitivity. In this work, we demonstrate increased coherence times with number squeezed states in an optical lattice using the decay of Bloch oscillations to probe the coherence time. We extend coherence times by a factor of 2 over those expected with coherent state BEC interferometry. We observe quantitative agreement with theory both for the degree of initial number squeezing as well as for prolonged coherence times.

Wei Li; Ari K. Tuchman; Hui-Chun Chien; Mark A. Kasevich

2006-09-02T23:59:59.000Z

147

Reverse Time Migration for Extended Obstacles: Acoustic Waves  

E-Print Network [OSTI]

We consider the resolution of the single frequency reverse time migration (RTM) method for extended targets without the assumption of the validation of geometric optics approximation. The resolution analysis, which applies in both penetrable and non-penetrable obstacles with sound soft or impedance boundary condition on the boundary of the obstacle, implies that the imaginary part of the cross-correlation imaging functional is always positive and thus may have better stability properties. Numerical experiments are included to illustrate the powerful imaging quality and to confirm our resolution results.

Junqing Chen; Zhiming Chen; Guanghui Huang

2014-06-10T23:59:59.000Z

148

CMS Data Processing Workflows during an Extended Cosmic Ray Run  

SciTech Connect (OSTI)

The CMS Collaboration conducted a month-long data taking exercise, the Cosmic Run At Four Tesla, during October-November 2008, with the goal of commissioning the experiment for extended operation. With all installed detector systems participating, CMS recorded 270 million cosmic ray events with the solenoid at a magnetic field strength of 3.8 T. This paper describes the data flow from the detector through the various online and offline computing systems, as well as the workflows used for recording the data, for aligning and calibrating the detector, and for analysis of the data.

Not Available

2009-11-01T23:59:59.000Z

149

An Extendible Reconfigurable Robot Based on Hot Melt Adhesives  

E-Print Network [OSTI]

(25mm 30mm) that is heated and cooled to form or break bonds with the HMA in contact with the connection surface. A Peltier element (Cente- nary Materials, TEC1-01703, 15mm 15mm, 3.9W) is used for thermo-electric cooling and two resistors (Vishay, PR... bounds of self-reconfiguration with our robotic (a) melting cavity HMA stick nozzle servo motor (b) connection surface peltier element power resisitor (c) Fig. 3 The robot base is extended with a structure from wood blocks combined with an HMA tool (a...

Brodbeck, Luzius; Iida, Fumiya

2015-01-01T23:59:59.000Z

150

Distributed Dynamic State Estimation with Extended Kalman Filter  

SciTech Connect (OSTI)

Increasing complexity associated with large-scale renewable resources and novel smart-grid technologies necessitates real-time monitoring and control. Our previous work applied the extended Kalman filter (EKF) with the use of phasor measurement data (PMU) for dynamic state estimation. However, high computation complexity creates significant challenges for real-time applications. In this paper, the problem of distributed dynamic state estimation is investigated. One domain decomposition method is proposed to utilize decentralized computing resources. The performance of distributed dynamic state estimation is tested on a 16-machine, 68-bus test system.

Du, Pengwei; Huang, Zhenyu; Sun, Yannan; Diao, Ruisheng; Kalsi, Karanjit; Anderson, Kevin K.; Li, Yulan; Lee, Barry

2011-08-04T23:59:59.000Z

151

Radiation transport modeling using extended quadrature method of moments  

SciTech Connect (OSTI)

The radiative transfer equation describes the propagation of radiation through a material medium. While it provides a highly accurate description of the radiation field, the large phase space on which the equation is defined makes it numerically challenging. As a consequence, significant effort has gone into the development of accurate approximation methods. Recently, an extended quadrature method of moments (EQMOM) has been developed to solve univariate population balance equations, which also have a large phase space and thus face similar computational challenges. The distinct advantage of the EQMOM approach over other moment methods is that it generates moment equations that are consistent with a positive phase space density and has a moment inversion algorithm that is fast and efficient. The goal of the current paper is to present the EQMOM method in the context of radiation transport, to discuss advantages and disadvantages, and to demonstrate its performance on a set of standard one-dimensional benchmark problems that encompass optically thin, thick, and transition regimes. Special attention is given in the implementation to the issue of realizabilitythat is, consistency with a positive phase space density. Numerical results in one dimension are promising and lay the foundation for extending the same framework to multiple dimensions.

Vikas, V., E-mail: vvikas@iastate.edu [Department of Aerospace Engineering, 2271 Howe Hall, Iowa State University, Ames, IA 50011 (United States); Hauck, C.D., E-mail: hauckc@ornl.gov [Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831 (United States); Wang, Z.J., E-mail: zjw@ku.edu [Department of Aerospace Engineering, 2120 Learned Hall, University of Kansas, Lawrence, KS 66045 (United States); Fox, R.O., E-mail: rofox@iastate.edu [Department of Chemical and Biological Engineering, 2114 Sweeney Hall, Iowa State University, Ames, IA 50011 (United States)

2013-08-01T23:59:59.000Z

152

Supersymmetric descendants of self-adjointly extended quantum mechanical Hamiltonians  

SciTech Connect (OSTI)

We consider the descendants of self-adjointly extended Hamiltonians in supersymmetric quantum mechanics on a half-line, on an interval, and on a punctured line or interval. While there is a 4-parameter family of self-adjointly extended Hamiltonians on a punctured line, only a 3-parameter sub-family has supersymmetric descendants that are themselves self-adjoint. We also address the self-adjointness of an operator related to the supercharge, and point out that only a sub-class of its most general self-adjoint extensions is physical. Besides a general characterization of self-adjoint extensions and their supersymmetric descendants, we explicitly consider concrete examples, including a particle in a box with general boundary conditions, with and without an additional point interaction. We also discuss bulk-boundary resonances and their manifestation in the supersymmetric descendant. -- Highlights: Self-adjoint extension theory and contact interactions. Application of self-adjoint extensions to supersymmetry. Contact interactions in finite volume with Robin boundary condition.

Al-Hashimi, M.H., E-mail: hashimi@itp.unibe.ch [Albert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, Bern University, Sidlerstrasse 5, CH-3012 Bern (Switzerland); Salman, M., E-mail: msalman@qu.edu.qa [Department of Mathematics, Statistics, and Physics, Qatar University, Al Tarfa, Doha 2713 (Qatar); Shalaby, A., E-mail: amshalab@qu.edu.qa [Department of Mathematics, Statistics, and Physics, Qatar University, Al Tarfa, Doha 2713 (Qatar); Physics Department, Faculty of Science, Mansoura University (Egypt); Wiese, U.-J., E-mail: wiese@itp.unibe.ch [Albert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, Bern University, Sidlerstrasse 5, CH-3012 Bern (Switzerland); Center for Theoretical Physics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA (United States)

2013-10-15T23:59:59.000Z

153

The Dynamically Extended Mind -- A Minimal Modeling Case Study  

E-Print Network [OSTI]

The extended mind hypothesis has stimulated much interest in cognitive science. However, its core claim, i.e. that the process of cognition can extend beyond the brain via the body and into the environment, has been heavily criticized. A prominent critique of this claim holds that when some part of the world is coupled to a cognitive system this does not necessarily entail that the part is also constitutive of that cognitive system. This critique is known as the "coupling-constitution fallacy". In this paper we respond to this reductionist challenge by using an evolutionary robotics approach to create a minimal model of two acoustically coupled agents. We demonstrate how the interaction process as a whole has properties that cannot be reduced to the contributions of the isolated agents. We also show that the neural dynamics of the coupled agents has formal properties that are inherently impossible for those neural networks in isolation. By keeping the complexity of the model to an absolute minimum, we are able to illustrate how the coupling-constitution fallacy is in fact based on an inadequate understanding of the constitutive role of nonlinear interactions in dynamical systems theory.

Tom Froese; Carlos Gershenson; David A. Rosenblueth

2013-05-08T23:59:59.000Z

154

EXTENDING NUCLEAR ENERGY TO NON-ELECTRICAL APPLICATIONS  

SciTech Connect (OSTI)

Electricity represents less than half of all energy consumed in the United States and globally. Although a few commercial nuclear power plants world-wide provide energy to non-electrical applications such as district heating and water desalination, nuclear energy has been largely relegated to base-load electricity production. A new generation of smaller-sized nuclear power plants offers significant promise for extending nuclear energy to many non-electrical applications. The NuScale small modular reactor design is especially well suited for these non-traditional customers due to its small unit size, very robust reactor protection features and a highly flexible and scalable plant design. A series of technical and economic evaluation studies have been conducted to assess the practicality of using a NuScale plant to provide electricity and heat to a variety of non-electrical applications, including water desalination, oil refining, and hydrogen production. The studies serve to highlight the unique design features of the NuScale plant for these applications and provide encouraging conclusions regarding the technical and economic viability of extending clean nuclear energy to a broad range of non-electrical energy consumers.

R. Boardman; M. McKellar; D. Ingersoll; Z. Houghton; , R. Bromm; C. Desportes

2014-09-01T23:59:59.000Z

155

Extending dry storage of spent LWR fuel for 100 years.  

SciTech Connect (OSTI)

Because of delays in closing the back end of the fuel cycle in the U.S., there is a need to extend dry inert storage of spent fuel beyond its originally anticipated 20-year duration. Many of the methodologies developed to support initial licensing for 20-year storage should be able to support the longer storage periods envisioned. This paper evaluates the applicability of existing information and methodologies to support dry storage up to 100 years. The thrust of the analysis is the potential behavior of the spent fuel. In the USA, the criteria for dry storage of LWR spent fuel are delineated in 10 CFR 72 [1]. The criteria fall into four general categories: maintain subcriticality, prevent the release of radioactive material above acceptable limits, ensure that radiation rates and doses do not exceed acceptable levels, and maintain retrievability of the stored radioactive material. These criteria need to be considered for normal, off-normal, and postulated accident conditions. The initial safety analysis report submitted for licensing evaluated the fuel's ability to meet the requirements for 20 years. It is not the intent to repeat these calculations, but to look at expected behavior over the additional 80 years, during which the temperatures and radiation fields are lower. During the first 20 years, the properties of the components may change because of elevated temperatures, presence of moisture, effects of radiation, etc. During normal storage in an inert atmosphere, there is potential for the cladding mechanical properties to change due to annealing or interaction with cask materials. The emissivity of the cladding could also change due to storage conditions. If there is air leakage into the cask, additional degradation could occur through oxidation in breached rods, which could lead to additional fission gas release and enlargement of cladding breaches. Air in-leakage could also affect cover gas conductivity, cladding oxidation, emissivity changes, and excessive creep and mechanical property changes. Postulated accident scenarios would be the same for 20-year or 100-year storage, because they are mostly governed by operational or outside events, and not by the cask or fuel. Analyses of accident scenarios during extended dry storage could be impacted by fuel and cask changes that would result from the extended period of storage. Overall, the results of this work indicate that, based on fuel behavior, spent fuel at burnups below {approximately}45 GWd/MTU can be dry stored for 100 years. Long-term storage of higher burnup fuel or fuels with newer cladding will require the determination of temperature limits based on evaluation of stress-driven degradation mechanisms of the cladding.

Einziger, R. E.

1998-12-16T23:59:59.000Z

156

Model Calibration of Exciter and PSS Using Extended Kalman Filter  

SciTech Connect (OSTI)

Power system modeling and controls continue to become more complex with the advent of smart grid technologies and large-scale deployment of renewable energy resources. As demonstrated in recent studies, inaccurate system models could lead to large-scale blackouts, thereby motivating the need for model calibration. Current methods of model calibration rely on manual tuning based on engineering experience, are time consuming and could yield inaccurate parameter estimates. In this paper, the Extended Kalman Filter (EKF) is used as a tool to calibrate exciter and Power System Stabilizer (PSS) models of a particular type of machine in the Western Electricity Coordinating Council (WECC). The EKF-based parameter estimation is a recursive prediction-correction process which uses the mismatch between simulation and measurement to adjust the model parameters at every time step. Numerical simulations using actual field test data demonstrate the effectiveness of the proposed approach in calibrating the parameters.

Kalsi, Karanjit; Du, Pengwei; Huang, Zhenyu

2012-07-26T23:59:59.000Z

157

Extending dualities to trialities deepens the foundations of dynamics  

E-Print Network [OSTI]

Dualities are often supposed to be foundational, but they may come into conflict with background independence, because a hidden fixed structures is needed to define the duality transformation. This conflict can be eliminated by extending a duality to a triality. This renders that fixed structure dynamical, while unifying it with the dual variables. To illustrate this, we study matrix models with a cubic action, and show how breaking its natural triality symmetry by imposing different compactifications yields particle mechanics, string theory and Chern-Simons theory. These result from compactifying, respectively, one, two and three dimensions. This may explain the origin of Born's duality between position and momenta operators in quantum theory, as well as some of the the dualities of string theory.

Smolin, Lee

2015-01-01T23:59:59.000Z

158

On extended sign-changeable interactions in the dark sector  

E-Print Network [OSTI]

We extend the cosmological couplings proposed in Sun et al. and Wei, where they suggested interactions with change of signs along the cosmological evolution. Our extension liberates the changes of sign of the interaction from the deceleration parameter and from the relation of energy densities of the dark sector and considers the presence of non interactive matter. In three cases we obtain the general solutions and the results obtained in models fitted with Hubble's function and SNe Ia data, are analyzed regarding the problem of the cosmological coincidence, the problem of the crisis of the cosmological age and the magnitude of the energy density of dark energy at early universe. Also we graphically study the range of variation of, the actual dark matter density parameter, the effective equation of state of the dark energy and the redshift of transition to the accelerated regimen, generated by variations at order $1\\sigma$ in the coupling parameters.

Mnica Forte

2014-09-23T23:59:59.000Z

159

Deformations of Quantum Symmetric Algebras Extended by Groups  

E-Print Network [OSTI]

algebra S(V ). Let G be a group acting linearly on V . If the action of G on V extends to all of Sq(V ), then the smash product algebra Sq(V )#G is obtained by using Sq(V ) kG as a vector space but with a new multiplication given by (a#g)(b#h) = a g...(b) # gh for all a; b 2 Sq(V ); g; h 2 G: For further details, see De nition II.29 and Example II.31. Graded Hecke algebras, also known as Drinfeld Hecke algebras [9], can be viewed as deformations of S(V )#G of type (T (V )#G) = (wiwj wjwi X g2G...

Shakalli Tang, Jeanette

2012-07-16T23:59:59.000Z

160

Improved Maximum Entropy Analysis with an Extended Search Space  

E-Print Network [OSTI]

The standard implementation of the Maximum Entropy Method (MEM) follows Bryan and deploys a Singular Value Decomposition (SVD) to limit the dimensionality of the underlying solution space apriori. Here we present arguments based on the shape of the SVD basis functions and numerical evidence from a mock data analysis, which show that the correct Bayesian solution is not in general recovered with this approach. As a remedy we propose to extend the search basis systematically, which will eventually recover the full solution space and the correct solution. In order to adequately approach problems where an exponentially damped kernel is used, we provide an open-source implementation, using the C/C++ language that utilizes high precision arithmetic adjustable at run-time. The LBFGS algorithm is included in the code in order to attack problems without the need to resort to a particular search space restriction.

Alexander Rothkopf

2013-01-07T23:59:59.000Z

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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161

THE EXPANSION OF ACTIVE REGIONS INTO THE EXTENDED SOLAR CORONA  

SciTech Connect (OSTI)

Advanced image processing of Large Angle and Spectrometric Coronagraph Experiment (LASCO) C2 observations reveals the expansion of the active region closed field into the extended corona. The nested closed-loop systems are large, with an apparent latitudinal extent of 50 Degree-Sign , and expanding to heights of at least 12 R{sub Sun }. The expansion speeds are {approx}10 km s{sup -1} in the AIA/SDO field of view, below {approx}20 km s{sup -1} at 2.3 R{sub Sun }, and accelerate linearly to {approx}60 km s{sup -1} at 5 R{sub Sun }. They appear with a frequency of one every {approx}3 hr over a time period of around three days. They are not coronal mass ejections (CMEs) since their gradual expansion is continuous and steady. They are also faint, with an upper limit of 3% of the brightness of background streamers. Extreme ultraviolet images reveal continuous birth and expansion of hot, bright loops from a new active region at the base of the system. The LASCO images show that the loops span a radial fan-like system of streamers, suggesting that they are not propagating within the main coronal streamer structure. The expanding loops brighten at low heights a few hours prior to a CME eruption, and the expansion process is temporarily halted as the closed field system is swept away. Closed magnetic structures from some active regions are not isolated from the extended corona and solar wind, but can expand to large heights in the form of quiescent expanding loops.

Morgan, Huw; Jeska, Lauren; Leonard, Drew, E-mail: hmorgan@aber.ac.uk [Sefydliad Mathemateg a Ffiseg, Prifysgol Aberystwyth, Ceredigion SY23 3BZ (United Kingdom)

2013-06-01T23:59:59.000Z

162

Extending the cereus group genomics to putative food-borne pathogens of different toxicity  

E-Print Network [OSTI]

Extending the cereus group genomics to putative food- borneGoltsman, et al Author(s) Division Genomics Extending thecereus group genomics to putative food-borne pathogens of

2008-01-01T23:59:59.000Z

163

Question of the Week: How Do You Feel About the Extended Daylight...  

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

Feel About the Extended Daylight Saving Time? Question of the Week: How Do You Feel About the Extended Daylight Saving Time? March 12, 2009 - 6:00am Addthis Have you been drinking...

164

Estimation of the Dynamic States of Synchronous Machines Using an Extended Particle Filter  

SciTech Connect (OSTI)

In this paper, an extended particle filter (PF) is proposed to estimate the dynamic states of a synchronous machine using phasor measurement unit (PMU) data. A PF propagates the mean and covariance of states via Monte Carlo simulation, is easy to implement, and can be directly applied to a non-linear system with non-Gaussian noise. The extended PF modifies a basic PF to improve robustness. Using Monte Carlo simulations with practical noise and model uncertainty considerations, the extended PFs performance is evaluated and compared with the basic PF and an extended Kalman filter (EKF). The extended PF results showed high accuracy and robustness against measurement and model noise.

Zhou, Ning; Meng, Da; Lu, Shuai

2013-11-11T23:59:59.000Z

165

Extended and Revised Analysis of Singly Ionized Tin: Sn II  

E-Print Network [OSTI]

The electronic structure of singly ionized tin (SnII) is partly a one-electron and partly a three-electron system with ground configuration 5s25p. The excited configurations are of the type 5s2nl in the one-electron part, and 5s5p2, 5p3 and 5s5pnl (nl = 6s, 5d) in the three-electron system with quartet and doublet levels. The spectrum analyzed in this work was recorded on a 3 m normal incidence vacuum spectrograph of the Antigonish laboratory (Canada) in the wavelength region 300 - 2080 {\\AA} using a triggered spark source. The existing interpretation of the one-electron level system was confirmed in this paper, while the 2S1/2 level of the 5s5p2 configuration has been revised. The analysis has been extended to include new configurations 5p3, 5s5p5d and 5s5p6s with the aid of superposition-of-configurations Hartree-Fock calculations with relativistic corrections. The ionization potential obtained from the ng series was found to be 118023.7(5) 1/cm (14.63307(6) eV). We give a complete set of critically evaluat...

Haris, K; Tauheed, A

2013-01-01T23:59:59.000Z

166

On MOND, extended gravity and non-geodesic motion  

E-Print Network [OSTI]

Starting from the origin of Einstein general relativity (GR) the request of Mach on the theory's structure has been the core of the foundational debate. That problem is strictly connected with the nature of the mass-energy equivalence. It is well known that this is exactly the key point that Einstein used to realize a metric theory of gravitation having an unequalled beauty and elegance. On the other hand, the current requirements of particle physics and the open questions within extended gravity theories request a better understanding of Equivalence Principle (EP). The MOND theory by Milgrom proposes a modify of Newtonian dynamics and a variation of the ratio m_{i}/m_{g}, to be tested, at least, within the solar system. In this paper we attack this important issue from the general point of view of a weak modification of GR which considers a direct coupling between the Ricci curvature scalar and the matter Lagrangian. It is shown that a non geodesic ratio m_{i}/m_{g} can be fixed and that Milgrom acceleration is retrieved at low energies.

Elmo Benedetto; Ignazio Licata; Christian Corda

2014-11-04T23:59:59.000Z

167

The Photophysics of the Carrier of Extended Red Emission  

E-Print Network [OSTI]

Interstellar dust contains a component which reveals its presence by emitting a broad, unstructured band of light in the 540 to 950 nm wavelength range, referred to as Extended Red Emission (ERE). The presence of interstellar dust and ultraviolet photons are two necessary conditions for ERE to occur. This is the basis for suggestions which attribute ERE to an interstellar dust component capable of photoluminescence. In this study, we have collected all published ERE observations with absolute-calibrated spectra for interstellar environments, where the density of ultraviolet photons can be estimated reliably. In each case, we determined the band-integrated ERE intensity, the wavelength of peak emission in the ERE band, and the efficiency with which absorbed ultraviolet photons are contributing to the ERE. The data show that radiation is not only driving the ERE, as expected for a photoluminescence process, but is modifying the ERE carrier as manifested by a systematic increase in the ERE band's peak wavelength and a general decrease in the photon conversion efficiency with increasing densities of the prevailing exciting radiation. The overall spectral characteristics of the ERE and the observed high quantum efficiency of the ERE process are currently best matched by the recently proposed silicon nanoparticle (SNP) model. Using the experimentally established fact that ionization of semiconductor nanoparticles quenches their photoluminescence, we proceeded to test the SNP model by developing a quantitative model for the excitation and ionization equilibrium of SNPs under interstellar conditions for a wide range of radiation field densities.

Tracy L. Smith; Adolf N. Witt

2001-09-26T23:59:59.000Z

168

On canonical transformations of gravitational variables in extended phase space  

E-Print Network [OSTI]

Last years a certain attention was attracted to the statement that Hamiltonian formulations of General Relativity, in which different parametrizations of gravitational variables were used, may not be related by a canonical transformation. The example was given by the Hamiltonian formulation of Dirac and that of Arnowitt - Deser - Misner. It might witness for non-equivalence of these formulations and the original (Lagrangian) formulation of General Relativity. The problem is believed to be of importance since many authors make use of various representations of gravitational field as a starting point in searching a way to reconcile the theory of gravity with quantum principles. It can be shown that the mentioned above conclusion about non-equivalence of different Hamiltonian formulations is based on the consideration of canonical transformations in phase space of physical degrees of freedom only, while the transformations also involve gauge degrees of freedom. We shall give a clear proof that Hamiltonian formulations corresponding to different parametrizations of gravitational variables are related by canonical transformations in extended phase space embracing gauge degrees of freedom on an equal footing with physical ones. It will be demonstrated for the full gravitational theory in a wide enough class of parametrizations and gauge conditions.

T. P. Shestakova

2010-07-19T23:59:59.000Z

169

1-pin blanket mockup: Results of the extended test campaign  

SciTech Connect (OSTI)

Following a preliminary test campaign (200 thermal cycles) on a solid breeder blanket mockup, an extended test campaign (about 1000 thermal cycles) has been carried out by ENEA. The duration of the test campaign represents a significant fraction of the blanket module lifetime in the ITER device. In particular, these out-of-pile experiments have been performed in order to test (both functional and endurance testing) the thermal-hydraulic and thermo-mechanical performance of a water cooled breeder-in-tube blanket mockup (1-PIN) using Li{sub 2}ZrO{sub 3} pebbles as a breeder material. The test campaign has been completed and the resulting data concerning thermal and thermal-hydraulic parameters have been elaborated and analyzed by means of a comparison with theoretical predictions based on a proper thermal-hydraulic model. The post test examination of the pebbles is in progress in order to investigate the thermo-mechanical behavior of the breeder material under cycling. The paper deals with the first part of the results. 6 refs., 11 figs., 1 tab.

Ferrari, M.; Talarico, C. [EURATOM-ENEA, Frascati (Italy); Furrer, M.; Simbolotti, G. [ENEA, S. Maria in Galeria (Italy)

1996-12-31T23:59:59.000Z

170

A Phenomenological Model for the Extended Zone Above AGB Stars  

E-Print Network [OSTI]

I suggest the existence of an extended zone above the surface of asymptotic giant branch (AGB), as well as similar stars experiencing high mass loss rates. In addition to the escaping wind, in this zone there are parcels of gas that do not reach the escape velocity. These parcels of dense gas rise slowly and then fall back. The wind and bound gas exist simultaneously to distances of ~100AU. I term this region the effervescent zone. In this phenomenological study I find that the density of the bound material in the effervescent zone falls as ~r^{-5/2}, not much faster than the wind density. The main motivation to propose the effervescent model is to allow wide binary companions to influence the morphology of the descendant planetary nebulae (PN) by accreting mass from the effervescent zone. Accretion from the effervescent zone is more efficient than accretion from the wind in forming an accretion disk around the companion. The companion might then blow two jets that will shape the descendant PN.

Noam Soker

2008-02-14T23:59:59.000Z

171

Extending Sensor Calibration Intervals in Nuclear Power Plants  

SciTech Connect (OSTI)

Currently in the USA, sensor recalibration is required at every refueling outage, and it has emerged as a critical path item for shortening outage duration. International application of calibration monitoring, such as at the Sizewell B plant in UK, has shown that sensors may operate for eight years, or longer, within calibration tolerances. Online monitoring can be employed to identify those sensors which require calibration, allowing for calibration of only those sensors which need it. The US NRC accepted the general concept of online monitoring for sensor calibration monitoring in 2000, but no plants have been granted the necessary license amendment to apply it. This project addresses key issues in advanced recalibration methodologies and provides the science base to enable adoption of best practices for applying online monitoring, resulting in a public domain standardized methodology for sensor calibration interval extension. Research to develop this methodology will focus on three key areas: (1) quantification of uncertainty in modeling techniques used for calibration monitoring, with a particular focus on non-redundant sensor models; (2) accurate determination of acceptance criteria and quantification of the effect of acceptance criteria variability on system performance; and (3) the use of virtual sensor estimates to replace identified faulty sensors to extend operation to the next convenient maintenance opportunity.

Coble, Jamie B.; Meyer, Ryan M.; Ramuhalli, Pradeep; Bond, Leonard J.; Shumaker, Brent; Hashemian, Hash

2012-11-15T23:59:59.000Z

172

Statefinder hierarchy exploration of the extended Ricci dark energy  

E-Print Network [OSTI]

We apply the statefinder hierarchy plus the fractional growth parameter to explore the extended Ricci dark energy (ERDE) model, in which there are two independent coefficients $\\alpha$ and $\\beta$. By adjusting them, we plot evolution trajectories of some typical parameters, including Hubble expansion rate $E$, deceleration parameter $q$, the third and fourth order hierarchy $S_3^{(1)}$ and $S_4^{(1)}$ and fractional growth parameter $\\epsilon$, respectively, as well as several combinations of them. For the case of variable $\\alpha$ and constant $\\beta$, in the low-redshift region the evolution trajectories of $E$ are in high degeneracy and that of $q$ separate somewhat. However, the $\\Lambda$CDM model is confounded with ERDE in both of these two cases. $S_3^{(1)}$ and $S_4^{(1)}$, especially the former, perform much better. They can differentiate well only varieties of cases within ERDE except $\\Lambda$CDM in the low-redshift region. For high-redshift region, combinations $\\{S_n^{(1)},\\epsilon\\}$ can break t...

Yu, Fei; Zhang, Jing-Fei; Zhang, Xin

2015-01-01T23:59:59.000Z

173

Extending the lifetime of fuel cell based hybrid systems  

E-Print Network [OSTI]

Fuel cells are clean power sources that have much higher energy densities and lifetimes compared to batteries. However, fuel cells have limited load following capabilities and cannot be efficiently utilized if used in isolation. In this work, we consider a hybrid system where a fuel cell based hybrid power source is used to provide power to a DVFS processor. The hybrid power source consists of a room temperature fuel cell operating as the primary power source and a Li-ion battery (that has good load following capability) operating as the secondary source. Our goal is to develop polices to extend the lifetime of the fuel cell based hybrid system. First, we develop a charge based optimization framework which minimizes the charge loss of the hybrid system (and not the energy consumption of the DVFS processor). Next, we propose a new algorithm to minimize the charge loss by judiciously scaling the load current. We compare the performance of this algorithm with one that has been optimized for energy, and demonstrate its superiority. Finally, we evaluate the performance of the hybrid system under different system configurations and show how to determine the best combination of fuel cell size and battery capacity for a given embedded application.

Jianli Zhuo; Chaitali Chakrabarti; Naehyuck Chang; Sarma Vrudhula

2006-01-01T23:59:59.000Z

174

Criterion based Two Dimensional Protein Folding Using Extended GA  

E-Print Network [OSTI]

Abstract In the dynamite field of biological and protein research, the protein fold recognition for long pattern protein sequences is a great confrontation for many years. With that consideration, this paper contributes to the protein folding research field and presents a novel procedure for mapping appropriate protein structure to its correct 2D fold by a concrete model using swarm intelligence. Moreover, the model incorporates Extended Genetic Algorithm (EGA) with concealed Markov model (CMM) for effectively folding the protein sequences that are having long chain lengths. The protein sequences are preprocessed, classified and then, analyzed with some parameters (criterion) such as fitness, similarity and sequence gaps for optimal formation of protein structures. Fitness correlation is evaluated for the determination of bonding strength of molecules, thereby involves in efficient fold recognition task. Experimental results have shown that the proposed method is more adept in 2D protein folding and outperforms the existing algorithms. Index Terms classification, CMM, criterion analysis, EGA, protein folding, sequence gaps I.

T. Kalai Chelvi; P. Rangarajan

175

Improved Maximum Entropy Method with an Extended Search Space  

E-Print Network [OSTI]

We report on an improvement to the implementation of the Maximum Entropy Method (MEM). It amounts to departing from the search space obtained through a singular value decomposition (SVD) of the Kernel. Based on the shape of the SVD basis functions we argue that the MEM spectrum for given $N_\\tau$ data-points $D(\\tau)$ and prior information $m(\\omega)$ does not in general lie in this $N_\\tau$ dimensional singular subspace. Systematically extending the search basis will eventually recover the full search space and the correct extremum. We illustrate this idea through a mock data analysis inspired by actual lattice spectra, to show where our improvement becomes essential for the success of the MEM. To remedy the shortcomings of Bryan's SVD prescription we propose to use the real Fourier basis, which consists of trigonometric functions. Not only does our approach lead to more stable numerical behavior, as the SVD is not required for the determination of the basis functions, but also the resolution of the MEM becomes independent from the position of the reconstructed peaks.

Alexander Rothkopf

2012-08-25T23:59:59.000Z

176

Modeling Cyber Conflicts Using an Extended Petri Net Formalism  

SciTech Connect (OSTI)

When threatened by automated attacks, critical systems that require human-controlled responses have difficulty making optimal responses and adapting protections in real- time and may therefore be overwhelmed. Consequently, experts have called for the development of automatic real-time reaction capabilities. However, a technical gap exists in the modeling and analysis of cyber conflicts to automatically understand the repercussions of responses. There is a need for modeling cyber assets that accounts for concurrent behavior, incomplete information, and payoff functions. Furthermore, we address this need by extending the Petri net formalism to allow real-time cyber conflicts to be modeled in a way that is expressive and concise. This formalism includes transitions controlled by players as well as firing rates attached to transitions. This allows us to model both player actions and factors that are beyond the control of players in real-time. We show that our formalism is able to represent situational aware- ness, concurrent actions, incomplete information and objective functions. These factors make it well-suited to modeling cyber conflicts in a way that allows for useful analysis. MITRE has compiled the Common Attack Pattern Enumera- tion and Classification (CAPEC), an extensive list of cyber attacks at various levels of abstraction. CAPEC includes factors such as attack prerequisites, possible countermeasures, and attack goals. These elements are vital to understanding cyber attacks and to generating the corresponding real-time responses. We demonstrate that the formalism can be used to extract precise models of cyber attacks from CAPEC. Several case studies show that our Petri net formalism is more expressive than other models, such as attack graphs, for modeling cyber conflicts and that it is amenable to exploring cyber strategies.

Zakrzewska, Anita N [ORNL; Ferragut, Erik M [ORNL

2011-01-01T23:59:59.000Z

177

Extending the frontiers of mass spectrometric instrumentation and methods  

SciTech Connect (OSTI)

The focus of this dissertation is two-fold: developing novel analysis methods using mass spectrometry and the implementation and characterization of a novel ion mobility mass spectrometry instrumentation. The novel mass spectrometry combines ion trap for ion/ion reactions coupled to an ion mobility cell. The long term goal of this instrumentation is to use ion/ion reactions to probe the structure of gas phase biomolecule ions. The three ion source - ion trap - ion mobility - qTOF mass spectrometer (IT - IM - TOF MS) instrument is described. The analysis of the degradation products in coal (Chapter 2) and the imaging plant metabolites (Appendix III) fall under the methods development category. These projects use existing commercial instrumentation (JEOL AccuTOF MS and Thermo Finnigan LCQ IT, respectively) for the mass analysis of the degraded coal products and the plant metabolites, respectively. The coal degradation paper discusses the use of the DART ion source for fast and easy sample analysis. The sample preparation consisted of a simple 50 fold dilution of the soluble coal products in water and placing the liquid in front of the heated gas stream. This is the first time the DART ion source has been used for analysis of coal. Steven Raders under the guidance of John Verkade came up with the coal degradation projects. Raders performed the coal degradation reactions, worked up the products, and sent them to me. Gregg Schieffer developed the method and wrote the paper demonstrating the use of the DART ion source for the fast and easy sample analysis. The plant metabolite imaging project extends the use of colloidal graphite as a sample coating for atmospheric pressure LDI. DC Perdian and I closely worked together to make this project work. Perdian focused on building the LDI setup whereas Schieffer focused on the MSn analysis of the metabolites. Both Perdian and I took the data featured in the paper. Perdian was the primary writer of the paper and used it as a chapter in his dissertation. Perdian and Schieffer worked together to address the revisions and publish it in Rapid Communications in Mass Spectrometry Journal.

Schieffer, Gregg

2010-12-15T23:59:59.000Z

178

Dark energy and extending the geodesic equations of motion: connecting the galactic and cosmological length scales  

E-Print Network [OSTI]

z RESEARCH ARTICLE Dark energy and extending the geodesicof motion using the Dark Energy length scale was proposed.observations. Keywords Dark energy Galactic density pro?le

Speliotopoulos, A. D.

2010-01-01T23:59:59.000Z

179

Dark energy and extending the geodesic equations of motion: its construction and experimental constraints  

E-Print Network [OSTI]

3 RESEARCH ARTICLE Dark energy and extending the geodesicWith the discovery of Dark Energy, DE , there is now aextension is set. Keywords Dark energy Geodesic equations

Speliotopoulos, Achilles D.

2010-01-01T23:59:59.000Z

180

E-Print Network 3.0 - applying extended producer Sample Search...  

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

Search Sample search results for: applying extended producer Page: << < 1 2 3 4 5 > >> 1 Learning Organizational Roles in a Heterogeneous Multiagent System Summary: on a steam...

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Physical Modeling of Transient Enhanced Diusion and Dopant Deactivation via Extended Defect Evolution  

E-Print Network [OSTI]

Physical Modeling of Transient Enhanced Diusion and Dopant Deactivation via Extended Defect requires the use of well-founded physical models for these aggregation processes. We have developed

Dunham, Scott

182

General Relativistic Shock Waves that Extend the Oppenheimer-Snyder Model  

E-Print Network [OSTI]

General Relativistic Shock Waves that Extend the Oppenheimer-Snyder Model JOELOEL SMOLLERMOLLER. These shock waves extend the celebrated Oppenheimer-Snyder result to the case of non-zero pressure. Our shock of a Friedmann- Robertson-Walker metric (a cosmological model for the expanding universe) to an Oppenheimer

Temple, Blake

183

Retirees with 10 or more years of service Extended Health Care Group Number 909903  

E-Print Network [OSTI]

Retirees with 10 or more years of service Extended Health Care Group Number 909903 #12: - . ! Extended Health Care (EHC) Please refer to the Table of Contents to help you locate the appropriate section" or "your" in this booklet. Pacific Blue Cross, the registered trade-name of PBC Health Benefits Society

184

Borehole Miner - Extendible Nozzle Development for Radioactive Waste Dislodging and Retrieval from Underground Storage Tanks  

SciTech Connect (OSTI)

This report summarizes development of borehole-miner extendible-nozzle water-jetting technology for dislodging and retrieving salt cake, sludge} and supernate to remediate underground storage tanks full of radioactive waste. The extendible-nozzle development was based on commercial borehole-miner technology.

CW Enderlin; DG Alberts; JA Bamberger; M White

1998-09-25T23:59:59.000Z

185

Development of an extender protocol to enhance the viability of frozen-thawed bovine spermatozoa  

E-Print Network [OSTI]

will be egg yolk-citrate (EC), egg yolk-tris (IMV), and skim milk (milk). In experiment 1, an ejaculate from each bull was partially extended and cooled to 4 ºC for either 2 or 4 hr and then allowed to equilibrate with the glycerolated extender for 2, 4, or 6...

Griffin, Erin Michelle

2006-04-12T23:59:59.000Z

186

West Virginia University Faculty Position/Coordinator of Extended Campus MSW Program  

E-Print Network [OSTI]

West Virginia University Faculty Position/Coordinator of Extended Campus MSW Program The West to coordinate its extended campus MSW program offered in Wheeling, West Virginia. The position is full the mission of the School of Social Work with particular emphasis on the needs of northern West Virginia

Azevedo, Ricardo

187

Efficient generation of extended plasma waveguides with the axicon ignitor-heater scheme  

E-Print Network [OSTI]

. The plasma col- umn was produced by using an axicon to focus a long laser pulse into a line focusEfficient generation of extended plasma waveguides with the axicon ignitor-heater scheme Y.-F. Xiao for generating extended plasma waveguides is developed by using the axicon lens in conjunction with the ignitor

188

Neutron star moment-of-inertia in the extended Zimanyi-Moszkowski model  

E-Print Network [OSTI]

Neutron star moment-of-inertia in the extended Zimanyi-Moszkowski model K. Miyazaki E-mail: miyazakiro@rio.odn.ne.jp Abstract We revisit the extended Zimanyi-Moszkowski (EZM) model of dense neutron observations of neutron stars (NSs) in RX J1856-3754 [2] and EXO 0748-676 [3] favor a sti¤ EOS. We are however

189

On energy conservation in extended magnetohydrodynamics Keiji Kimura and P. J. Morrison  

E-Print Network [OSTI]

On energy conservation in extended magnetohydrodynamics Keiji Kimura and P. J. Morrison Citation.1063/1.3587080 Exact energy conservation laws for full and truncated nonlinear gyrokinetic equations Phys. Plasmas 17://scitation.aip.org/termsconditions. Downloaded to IP: 199.92.165.139 On: Fri, 01 Aug 2014 13:41:41 #12;On energy conservation in extended

Morrison, Philip J.,

190

Hybrid MHD-Gyrokinetic codes: extended models, new implementations and forthcoming applications  

E-Print Network [OSTI]

P2.13 Hybrid MHD-Gyrokinetic codes: extended models, new implementations and forthcoming Alfven waves and energetic particles and their mutual interaction in toroidal devices. HMGC extended to include new physics. In this paper we will present the first simulations of an electron

Vlad, Gregorio

191

Confidentiality-Preserving Data Publishing for Credulous Users by Extended Abduction  

E-Print Network [OSTI]

Publishing private data on external servers incurs the problem of how to avoid unwanted disclosure of confidential data. We study a problem of confidentiality in extended disjunctive logic programs and show how it can be solved by extended abduction. In particular, we analyze how credulous non-monotonic reasoning affects confidentiality.

Inoue, Katsumi; Wiese, Lena

2011-01-01T23:59:59.000Z

192

A dusty plasma device for producing extended, steady state, magnetized, dusty plasma columns  

E-Print Network [OSTI]

A dusty plasma device for producing extended, steady state, magnetized, dusty plasma columns Wenjun with an existing Q machine, to produce extended, steady state, magnetized plasma columns. The dusty plasma device (DPD) is to be used for the investigation of waves in dusty plasmas and of other plasma/dust aspects

Merlino, Robert L.

193

The Singular-Value Decomposition in the Extended Max Algebra* Bart De Schutter+ and Bart De Moor*  

E-Print Network [OSTI]

numbers and the extended max algebra to define the sing&r-value decomposition of a matrix in the extendedThe Singular-Value Decomposition in the Extended Max Algebra* Bart De Schutter+ and Bart De Moor ABSTRACT First we establish a connection between the field of the real numbers and the extended max algebra

194

Damage Modeling and Life Extending Control of a Boiler-Turbine System1  

E-Print Network [OSTI]

Damage Modeling and Life Extending Control of a Boiler-Turbine System1 Donglin Li Tongwen Chen2 hierarchical LEC structure and apply it to a typ- ical boiler system. There are two damage models

Marquez, Horacio J.

195

Extending the hierarchical systems knowledge representation framework : interfacing with geographic information systems  

E-Print Network [OSTI]

This thesis presents the design and implementation of a geographic information systems framework in which engineering systems can be created and analyzed. This framework extends the hierarchical systems knowledge representation ...

Phillips, Reesa Brooke

2008-01-01T23:59:59.000Z

196

Applications of a new theory extending continuum mechanics to the nanoscale  

E-Print Network [OSTI]

In this dissertation, we present the Slattery-Oh-Fu theory extending continuum mechanics to the nanoscale and its applications. We begin with an analysis of supercritical adsorption of argon, krypton, and methane on Graphon before we fully develop...

Fu, Kaibin

2005-11-01T23:59:59.000Z

197

Axial Ratio of Edge-On Spiral Galaxies as a Test For Extended Bright Radio Halos  

E-Print Network [OSTI]

We use surface brightness contour maps of nearby edge-on spiral galaxies to determine whether extended bright radio halos are common. In particular, we test a recent model of the spatial structure of the diffuse radio continuum by Subrahmanyan and Cowsik which posits that a substantial fraction of the observed high-latitude surface brightness originates from an extended Galactic halo of uniform emissivity. Measurements of the axial ratio of emission contours within a sample of normal spiral galaxies at 1500 MHz and below show no evidence for such a bright, extended radio halo. Either the Galaxy is atypical compared to nearby quiescent spirals or the bulk of the observed high-latitude emission does not originate from this type of extended halo.

Singal, J; Jones, E; Dunlap, H

2015-01-01T23:59:59.000Z

198

Slaying the chimera: a complementarity approach to the extended mind thesis  

E-Print Network [OSTI]

Much of the literature directed at the Extended Mind Thesis (EMT) has revolved around parity issues, focussing on the problem of how to individuate the functional roles and on the relevance of these roles for the production ...

Farina, Mirko

2012-02-08T23:59:59.000Z

199

Methodologies to assess potential lifetime limits for extended burnup nuclear fuel  

E-Print Network [OSTI]

predict no increased propensity for cladding failure due to PCI induced SCC at extended burnups. The other model predicts a significant probability of cladding failure occurring for a control rod ejection event at extended burnups. Generally, rod... 9 Forcing functions for the Control Rod Ejection at full power transient 168 10 Transient event cladding hoop stress calculations. . 182 11 Model results for cladding failure. . . . 185 LIST OF FIGURES Figure Page 1 High buinup total data...

De Vore, Curtis Vincent

1986-01-01T23:59:59.000Z

200

ATLAS Muon TGCTrigger Electronics Hi-pT ASIC Extended URD  

E-Print Network [OSTI]

ATLAS Muon TGCTrigger Electronics Hi-pT ASIC Extended URD Version 0 June,2000 1 Hi-pT ASIC Design-Packard G-link protocol. #12;ATLAS Muon TGCTrigger Electronics Hi-pT ASIC Extended URD Version 0 June,2000 2 Position for r position Strip one channel: 1bit Hit on/off + 4 bit position for position #12;ATLAS Muon

Fukunaga, Chikara

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Design and analysis of an Extended Kalman Filter based navigator for an autonomous underwater vehicle  

E-Print Network [OSTI]

DESIGN AND ANALYSIS OF AN EXTENDED KALMAN FILTER BASED NAVIGATOR FOR AN AUTONOMOUS UNDERWATER VEHICLE A Thesis by BRADLEY EUGENE JUST Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1994 Major Subject: Mechanical Engineering DESIGN AND ANALYSIS OF AN EXTENDED KALMAN FILTER BASED NAVIGATOR FOR AN AUTONOMOUS UNDERWATER VEHICLE A Thesis by BRADLEY EUGENE JUST Submitted to Texas A...

Just, Bradley Eugene

1994-01-01T23:59:59.000Z

202

Impact of Extended Daylight Saving Time on National Energy Consumption Report to Congress  

SciTech Connect (OSTI)

The Energy Policy Act of 2005 (Pub. L. No. 109-58; EPAct 2005) amended the Uniform Time Act of 1966 (Pub. L. No. 89-387) to increase the portion of the year that is subject to Daylight Saving Time. (15 U.S.C. 260a note) EPAct 2005 extended the duration of Daylight Saving Time in the spring by changing its start date from the first Sunday in April to the second Sunday in March, and in the fall by changing its end date from the last Sunday in October to the first Sunday in November. (15 U.S.C. 260a note) EPAct 2005 also called for the Department of Energy to evaluate the impact of Extended Daylight Saving Time on energy consumption in the United States and to submit a report to Congress. (15 U.S.C. 260a note) This report presents the results of impacts of Extended Daylight Saving Time on the national energy consumption in the United States. The key findings are: (1) The total electricity savings of Extended Daylight Saving Time were about 1.3 Tera Watt-hour (TWh). This corresponds to 0.5 percent per each day of Extended Daylight Saving Time, or 0.03 percent of electricity consumption over the year. In reference, the total 2007 electricity consumption in the United States was 3,900 TWh. (2) In terms of national primary energy consumption, the electricity savings translate to a reduction of 17 Trillion Btu (TBtu) over the spring and fall Extended Daylight Saving Time periods, or roughly 0.02 percent of total U.S. energy consumption during 2007 of 101,000 TBtu. (3) During Extended Daylight Saving Time, electricity savings generally occurred over a three- to five-hour period in the evening with small increases in usage during the early-morning hours. On a daily percentage basis, electricity savings were slightly greater during the March (spring) extension of Extended Daylight Saving Time than the November (fall) extension. On a regional basis, some southern portions of the United States exhibited slightly smaller impacts of Extended Daylight Saving Time on energy savings compared to the northern regions, a result possibly due to a small, offsetting increase in household air conditioning usage. (4) Changes in national traffic volume and motor gasoline consumption for passenger vehicles in 2007 were determined to be statistically insignificant and therefore, could not be attributed to Extended Daylight Saving Time.

Belzer, D. B.; Hadley, S. W.; Chin, S-M.

2008-10-01T23:59:59.000Z

203

ON THE USE OF EXTENDED X-RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY TO DETERMINE THE BONDING CONFIGURATIONS OF  

E-Print Network [OSTI]

ON THE USE OF EXTENDED X-RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY TO DETERMINE THE BONDING Rights Reserved #12;ON THE USE OF EXTENDED X-RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY TO DETERMINE

Sparks, Donald L.

204

2014-09-24 Issuance: Energy Conservation Program for Manufactured Housing; Notice to Extend Term and Public Meetings  

Broader source: Energy.gov [DOE]

This document is the Energy Conservation Program for Manufactured Housing; Notice to Extend Term and Public Meetings.

205

Impacts of the extended-weight coal haul road system. Final research report, December 1995  

SciTech Connect (OSTI)

The Extended-Weight Coal Haul Road System, created by the Kentucky Legislature in 1986, consists of all roads which carry over 50,000 tons of coal in a calendar year. Trucks hauling coal on this system are authorized to exceed normal weight limits through the payment of an annual decal fee. A research study was initiated in July of 1992 to analyze the impacts of the extended-weight system. Analyses in this report are based on the following: historical data on coal production and transportation: data from coal decal applications; interviews of legislators, transportation officials, coal company representatives, and coal trucking representatives; newspaper articles; vehicle classification data; analyses of pavement costs; pavement rideability data; and accident data. Primary conclusions include; (1) The extended-weight system has apparently been somewhat successful in accomplishing the objective of enhancing the competitiveness and economic viability of the Kentucky coal industry; (2) Overall accident rates did not increase as a result of implementation of the extended-weight system, but the fatal accident injury rates were significantly higher on the extended-weight system and for trucks operating with the coal decal; (3) Advance-warning flashers have been evaluated and recommended as a means of reducing intersection accidents involving heavy/coal trucks; (4) The coal-decal fee structure results in a net annual loss in Road Fund revenue of approximately $2 million; (5) Forty percent of revenue from decal fees are allocated to counties even though county-maintained roads comprise only eight percent of the extended-weight system; (6) Heavier weights of coal-decal trucks add approximately $9 million annually to the pavement overlay costs; (7) Road users throughout the state are subsidizing the movement of Kentucky coal by participating in the cost of maintaining and improving the highway system; and (8) Possibly reflecting the increased funding of extended-weight roads.

Pigman, J.; Crabtree, J.; Agent, K.; Graves, C.; Deacon, J.

1995-12-01T23:59:59.000Z

206

Quick extended x-ray absorption fine structure instrument with millisecond time scale, optimized for in situ applications  

E-Print Network [OSTI]

Quick extended x-ray absorption fine structure instrument with millisecond time scale, optimized of quick extended x-ray absorption fine structure QEXAFS and quick x-ray absorption near edge structure- tion spectroscopy XAS was developed in energy dispersive and quick extended x-ray absorption fine

Sparks, Donald L.

207

Integrable Boundary Conditions and W-Extended Fusion in the Logarithmic Minimal Models LM(1,p)  

E-Print Network [OSTI]

We consider the logarithmic minimal models LM(1,p) as `rational' logarithmic conformal field theories with extended W symmetry. To make contact with the extended picture starting from the lattice, we identify 4p-2 boundary conditions as specific limits of integrable boundary conditions of the underlying Yang-Baxter integrable lattice models. Specifically, we identify 2p integrable boundary conditions to match the 2p known irreducible W-representations. These 2p extended representations naturally decompose into infinite sums of the irreducible Virasoro representations (r,s). A further 2p-2 reducible yet indecomposable W-representations of rank 2 are generated by fusion and these decompose as infinite sums of indecomposable rank-2 Virasoro representations. The fusion rules in the extended picture are deduced from the known fusion rules for the Virasoro representations of LM(1,p) and are found to be in agreement with previous works. The closure of the fusion algebra on a finite number of representations in the extended picture is remarkable confirmation of the consistency of the lattice approach.

Paul A. Pearce; Jorgen Rasmussen; Philippe Ruelle

2008-03-06T23:59:59.000Z

208

Search for relationship between duration of the extended solar cycles and amplitude of sunspot cycle  

E-Print Network [OSTI]

Duration of the extended solar cycles is taken into the consideration. The beginning of cycles is counted from the moment of polarity reversal of large-scale magnetic field in high latitudes, occurring in the sunspot cycle n till the minimum of the cycle n+2. The connection between cycle duration and its amplitude is established. Duration of the "latent" period of evolution of extended cycle between reversals and a minimum of the current sunspot cycle is entered. It is shown, that the latent period of cycles evolution is connected with the next sunspot cycle amplitude and can be used for the prognosis of a level and time of a sunspot maximum. The 24-th activity cycle prognosis is done. Long-term behavior of extended cycle's lengths is considered.

A. G. Tlatov

2007-03-27T23:59:59.000Z

209

Search for relationship between duration of the extended solar cycles and amplitude of sunspot cycle  

E-Print Network [OSTI]

Duration of the extended solar cycles is taken into the consideration. The beginning of cycles is counted from the moment of polarity reversal of large-scale magnetic field in high latitudes, occurring in the sunspot cycle n till the minimum of the cycle n+2. The connection between cycle duration and its amplitude is established. Duration of the "latent" period of evolution of extended cycle between reversals and a minimum of the current sunspot cycle is entered. It is shown, that the latent period of cycles evolution is connected with the next sunspot cycle amplitude and can be used for the prognosis of a level and time of a sunspot maximum. The 24-th activity cycle prognosis is done. Long-term behavior of extended cycle's lengths is considered.

Tlatov, A G

2007-01-01T23:59:59.000Z

210

Dynamic Analysis of Wind Turbine Planetary Gears Using an Extended Harmonic Balance Approach: Preprint  

SciTech Connect (OSTI)

The dynamics of wind turbine planetary gears with gravity effects are investigated using an extended harmonic balance method that extends established harmonic balance formulations to include simultaneous internal and external excitations. The extended harmonic balance method with arc-length continuation and Floquet theory is applied to a lumped-parameter planetary gear model including gravity, fluctuating mesh stiffness, bearing clearance, and nonlinear tooth contact to obtain the planetary gear dynamic response. The calculated responses compare well with time domain integrated mathematical models and experimental results. Gravity is a fundamental vibration source in wind turbine planetary gears and plays an important role in system dynamics, causing hardening effects induced by tooth wedging and bearing-raceway contacts. Bearing clearance significantly reduces the lowest resonant frequencies of translational modes. Gravity and bearing clearance together lowers the speed at which tooth wedging occurs lower than the resonant frequency.

Guo, Y.; Keller, J.; Parker, R. G.

2012-06-01T23:59:59.000Z

211

Impacts of the extended-weight coal haul road system (interim report). Research report  

SciTech Connect (OSTI)

The Extended-Weight Coal Haul Road System, created by Kentucky`s Legislature in 1986, consists of all roads which carry over 50,000 tons of coal in a calendar year. Trucks hauling coal on this system are authorized to exceed normal weight limits through the payment of an annual decal fee. A research study was initiated in July of 1992 to analyze the impacts of the extended-weight system. This interim report prepared after one year of a three-year study, describes the analyses performed thus far and presents preliminary findings, recommendations, and a discussion of future work. Analyses in this report are based on: historical data on coal production and transportation; data from coal decal applications; interviews of legislators, transportation officials, coal company representatives, and coal trucking representatives: newspaper articles; vehicle classification data; a pavement cost analysis; and accident data. Preliminary conclusions include: (1) The extended-weight system has apparently been somewhat successful in accomplishing the primary objectives: to enhance the competitiveness and economic viability of Kentucky`s coal industry and to eliminate the perceived need for cal haulers to violate the law in order to be competitive; (2) Overall accident rates are no higher on the extended-weight system than on other comparable routes, but the fatal accident rate is significantly higher on the extended-weight system; (3) The coal-decal fee structure results in a net annual loss in Road Fund revenue of approximately $2 million; (4) Forty percent of the revenue from decal sales is allocated to the counties, although less than ten percent of the extended-weight system in county-maintained; (5) The heavier weights of coal-decal trucks add approximately $9 million annually to pavement overlay costs and increase other highway costs. (6) Road users throughout the state are subsidizing the movement of Kentucky coal by underwriting the increased costs.

Crabtree, J.D.; Pigman, J.G.; Deacon, J.A.; Agent, K.R.

1993-10-01T23:59:59.000Z

212

Extended Hamilton-Lagrange formalism and its application to Feynman's path integral for relativistic quantum physics  

E-Print Network [OSTI]

We present a consistent and comprehensive treatise on the foundations of the extended Hamilton-Lagrange formalism--where the dynamical system is parameterized along a general system evolution parameter $s$, and the time $t$ is treated as a dependent variable $t(s)$ on equal footing with all other configuration space variables $q^{i}(s)$. In the action principle, the conventional classical action $L dt$ is then replaced by the generalized action $L_{1}ds$, with $L$ and $L_{1}$ denoting the conventional and the extended Lagrangian, respectively. It is shown that a unique correlation of $L_{1}$ and $L$ exists if we refrain from performing simultaneously a transformation of the dynamical variables. With the appropriate correlation of $L_{1}$ and $L$ in place, the extension of the formalism preserves its canonical form. In the extended formalism, the dynamical system is described as a constrained motion within an extended space. We show that the value of the constraint and the parameter $s$ constitutes an additional pair of canonically conjugate variables. In the corresponding quantum system, we thus encounter an additional uncertainty relation. We derive the extended Lagrangian $L_{1}$ of a classical relativistic point particle in an external electromagnetic field and show that the generalized path integral approach yields the Klein-Gordon equation as the corresponding quantum description. We furthermore derive the space-time propagator for a free relativistic particle from its extended Lagrangian $L_{1}$. These results can be regarded as the proof of principle of the relativistic generalization of Feynman's path integral approach to quantum physics.

Jrgen Struckmeier

2008-11-04T23:59:59.000Z

213

On the Irreps of the N-Extended Supersymmetric Quantum Mechanics and Their Fusion Graphs  

E-Print Network [OSTI]

In this talk we review the classification of the irreducible representations of the algebra of the N-extended one-dimensional supersymmetric quantum mechanics presented in hep-th/0511274. We answer some issues raised in hep-th/0611060, proving the agreement of the results here contained with those in hep-th/0511274. We further show that the fusion algebra of the 1D N-extended supersymmetric vacua introduced in hep-th/0511274 admits a graphical presentation. The N=2 graphs are here explicitly presented for the first time.

Francesco Toppan

2006-12-27T23:59:59.000Z

214

Extended Kalman Filter Based Neural Networks Controller For Hot Strip Rolling mill  

SciTech Connect (OSTI)

The present paper deals with the application of an Extended Kalman filter based adaptive Neural-Network control scheme to improve the performance of a hot strip rolling mill. The suggested Neural Network model was implemented using Bayesian Evidence based training algorithm. The control input was estimated iteratively by an on-line extended Kalman filter updating scheme basing on the inversion of the learned neural networks model. The performance of the controller is evaluated using an accurate model estimated from real rolling mill input/output data, and the usefulness of the suggested method is proved.

Moussaoui, A. K. [Electrical Engineering Laboratory of Guelma (LGEG), BP.401, University of Guelma, 24000 (Algeria); Abbassi, H. A.; Bouazza, S. [Universite Badji Mokhtar BP 12--23000-Annaba Algerie (Algeria)

2008-06-12T23:59:59.000Z

215

Devices with extended area structures for mass transfer processing of fluids  

DOE Patents [OSTI]

A microchannel device includes several mass transfer microchannels to receive a fluid media for processing at least one heat transfer microchannel in fluid communication with a heat transfer fluid defined by a thermally conductive wall, and at several thermally conductive fins each connected to the wall and extending therefrom to separate the mass transfer microchannels from one another. In one form, the device may optionally include another heat transfer microchannel and corresponding wall that is positioned opposite the first wall and has the fins and the mass transfer microchannels extending therebetween.

TeGrotenhuis, Ward E. (Kennewick, WA); Wegeng, Robert S. (Richland, WA); Whyatt, Greg A. (West Richland, WA); King, David L. (Richland, WA); Brooks, Kriston P. (Kennewick, WA); Stenkamp, Victoria S. (Richland, WA)

2009-04-21T23:59:59.000Z

216

The Extended Thermodynamic Phase Structure of Taub-NUT and Taub-Bolt  

E-Print Network [OSTI]

We study aspects of the extended gravitational thermodynamics for the Taub-NUT and Taub-Bolt geometries in four dimensional locally anti-de Sitter spacetime, where the cosmological constant is treated as a dynamical pressure. Attention is paid to the phase structure in the (p,T) plane, which has a line of first order phase transitions extending from the origin. We argue for a dynamical interpretation of the unstable physics in the negative specific heat region. A deformation corresponding to a dyonic Taub-NUT/Bolt system is also explored, and the effect of the deformation on the phase diagram is characterised.

Clifford V. Johnson

2014-06-17T23:59:59.000Z

217

X-ray imaging of extended magnetic domain walls in Ni80Fe20 wires  

SciTech Connect (OSTI)

We have used magnetic transmission X-ray microscopy to image magnetization configurations in 700 nm wide Ni{sub 80}Fe{sub 20} planar wires attached to 'nucleation' pads Domain walls were observed to inject only across half of the wire width but extend to several micrometers in length. Magnetostatic interactions with adjacent wires caused further unusual domain wall behavior. Micromagnetic modeling suggests the extended walls have Neel-like structure along their length and indicates weaker exchange coupling than is often assumed. These observations explain previous measurements of domain wall injection and demonstrate that magnetic domain walls in larger nanowires cannot always be considered as localized entities.

Basu, S.; Fry, P. W.; Allwood, D. A.; Bryan, M. T.; Gibbs, M. R. J.; Schrefl, T.; Im, M.-Y.; Fischer, P.

2009-06-20T23:59:59.000Z

218

Role of noise operators on two-photon correlations in an extended coherent Raman medium  

E-Print Network [OSTI]

Role of noise operators on two-photon correlations in an extended coherent Raman medium C. H. Raymond Ooi1,2,3,4,* and M. Suhail Zubairy3,5 1Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, 305-701 Korea 2Max... & Aerospace Engineering, Princeton University, New Jersey 08544, USA 5Texas A&M University at Qatar, Education City, P.O. Box 23874, Doha, Qatar #1;Received 8 January 2007; published 29 May 2007#2; An extended medium driven in a double Raman configuration...

Ooi, C. H. Raymond; Zubairy, M. Suhail.

2007-01-01T23:59:59.000Z

219

Advanced properties of extended plasmas for efficient high-order harmonic generation  

SciTech Connect (OSTI)

We demonstrate the advanced properties of extended plasma plumes (5?mm) for efficient harmonic generation of laser radiation compared with the short lengths of plasmas (?0.30.5?mm) used in previous studies. The harmonic conversion efficiency quadratically increased with the growth of plasma length. The studies of this process along the whole extreme ultraviolet range using the long plasma jets produced on various metal surfaces, particularly including the resonance-enhanced laser frequency conversion and two-color pump, are presented. Such plasmas could be used for the quasi-phase matching experiments by proper modulation of the spatial characteristics of extended ablating area and formation of separated plasma jets.

Ganeev, R. A. [Ophthalmology and Advanced Laser Medical Center, Saitama Medical University, Saitama 350-0495 (Japan) [Ophthalmology and Advanced Laser Medical Center, Saitama Medical University, Saitama 350-0495 (Japan); Physics Department, Voronezh State University, Voronezh 394006 (Russian Federation); Suzuki, M.; Kuroda, H. [Ophthalmology and Advanced Laser Medical Center, Saitama Medical University, Saitama 350-0495 (Japan)] [Ophthalmology and Advanced Laser Medical Center, Saitama Medical University, Saitama 350-0495 (Japan)

2014-05-15T23:59:59.000Z

220

Extending ER Models to Capture Database Transformations to Build Data Sets for Data Mining  

E-Print Network [OSTI]

transformation tables in abstract form can be useful not only for optimizing the generation of new data sets stages of data transformation, mathematical functions and the powerful SQL CASE statement, which doesExtending ER Models to Capture Database Transformations to Build Data Sets for Data Mining Carlos

Ordonez, Carlos

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

A Do-It-All-Cipher for RFID: Design Requirements (Extended Abstract)  

E-Print Network [OSTI]

A Do-It-All-Cipher for RFID: Design Requirements (Extended Abstract) Markku-Juhani O. Saarinen that are present in real-life RFID systems. We give an overview of requirements emerging or already present in the widely deployed EPCGlobal Gen2 and ISO / IEC 18000-63 passive UHF RFID air interface standards

222

The habitat range of sirenians extends from strictly fresh water (Amazonian manatee, Trichechus inunguis) to strictly  

E-Print Network [OSTI]

in salt water and fed lettuce, which is consistent with a lack of mariposia. Manatees in fresh water drankThe habitat range of sirenians extends from strictly fresh water (Amazonian manatee, Trichechus. This flexibility suggests that drinking both fresh and salt water may be common in this species. However, drinking

Ortiz, Rudy M.

223

Extending the Zero-Safe approach to Coloured, Recon gurable and Dynamic Nets ?  

E-Print Network [OSTI]

Extending the Zero-Safe approach to Coloured, Recon#12;gurable and Dynamic Nets ? Roberto Bruni their execution). Starting from zero-safe nets | a well-studied extension of Place/Transition Petri nets | we show how the zero-safe approach can be smoothly applied to a hierarchy of nets of increasing

Bruni, Roberto

224

Instability of asymmetric nuclear matter in the extended Zimanyi-Moszkowski model  

E-Print Network [OSTI]

and the critical phenomena in nuclear matter. The nuclear multifragmentation is considered as the spinodal decom the empirical value of the critical temperature [13] for nuclear matter. Recently, the author has developedInstability of asymmetric nuclear matter in the extended Zimanyi-Moszkowski model K. Miyazaki

225

Critical phenomena of nuclear matter in the extended Zimanyi-Moszkowski model  

E-Print Network [OSTI]

Critical phenomena of nuclear matter in the extended Zimanyi-Moszkowski model K. Miyazaki Abstract in nuclear multifragmentation reactions and the critical temperature has been derived as TC = 20 3 MeV in Ref] to estimate the critical temperature for in...nite nuclear matter, that is, TC = 16:6 0:86 Me

226

Extending Data Mining for Spatial Applications: A Case Study in Predicting Nest Locations  

E-Print Network [OSTI]

Extending Data Mining for Spatial Applications: A Case Study in Predicting Nest Locations Sanjay Chawla \\Lambda Shashi Shekhar \\Lambda Weili Wu \\Lambda Uygar Ozesmi y Abstract Spatial data mining. Efficient tools for extracting information from spatial data sets can be of importance to organizations

Shekhar, Shashi

227

Extending a Deductive ObjectOriented Database System with Spatial Data Handling Facilities  

E-Print Network [OSTI]

Extending a Deductive Object­Oriented Database System with Spatial Data Handling Facilities Alvaro, 1998 Abstract This paper describes the integration of a spatial data handling component with the ROCK collection of spatial data types as primitive types whose operations have state­of­the­art computational

Fernandes, Alvaro A. A.

228

Rows x1 x2 y Response: y (for extended fake MLR data)  

E-Print Network [OSTI]

;Response: y (for extended fake MLR data) Summary of Fit RSquare RSquare Adj Root Mean Square Error Mean of Response Observations (or Sum Wgts) 0.882812 0.835937 0.75 2 8 Lack of Fit Source Lack of Fit Pure Error.8333 Prob>F 0.0047 Press 6.821378005 x1 x2 2 #12;

Vardeman, Stephen B.

229

DRAFT March 17, 2008 The ChaMP Extended Stellar Survey (ChESS): Photometric and  

E-Print Network [OSTI]

-Sky Survey and the more distant stars detected in deep Chandra and XMM-Newton surveys. For 36 newly iden , D. O. Pease8 , J. D. Silverman9 ABSTRACT We present 348 X-ray emitting stars identified from correlating the Extended Chandra Multiwavelength Project (ChaMP), a wide-area serendipitous survey based

Kim, Dong-Woo

230

Equilibrium free energy estimates based on nonequilibrium work relations and extended dynamics  

E-Print Network [OSTI]

Equilibrium free energy estimates based on nonequilibrium work relations and extended dynamics the equilibrium free energy and the nonequilibrium work is useful for computer simulations. In this paper, we exploit the fact that the free energy is a state function, independent of the pathway taken to change

Sun, Sean

231

AN EXTENDED NICHOLS CHART WITH CONSTANT MAGNITUDE LOCI OF SENSITIVITY AND  

E-Print Network [OSTI]

AN EXTENDED NICHOLS CHART WITH CONSTANT MAGNITUDE LOCI OF SENSITIVITY AND COMPLEMENTARY SENSITIVITY chart) and constant magnitude loci MS of |S(j)|. While the for- mer are part of standard methodologies the complementary sensitivity and sensitivity functions. In order to handle such resonance peak specifications

Regruto, Diego

232

EXTENDING FIBER RESOURCES: FIBER LOADING RECYCLED FIBER AND MECHANICAL PULPS FOR LIGHTWEIGHT, HIGH OPACITY PAPER  

E-Print Network [OSTI]

alkalinity, precipitates calcium carbonate (PCC) in situ within pulp fibers. Because paper made from fiber include increasing the recovery and utilization of recycled fiber and optimizing virgin fiber yieldEXTENDING FIBER RESOURCES: FIBER LOADING RECYCLED FIBER AND MECHANICAL PULPS FOR LIGHTWEIGHT, HIGH

Abubakr, Said

233

EXTENDING FIBER RESOURCES: FIBER LOADING RECYCLED FIBERAND MECHANICAL PULPS FOR LIGHTWEIGHT, HIGH OPACITY PAPER  

E-Print Network [OSTI]

, precipitates calcium carbonate (PCC) in situ within pulp fibers. Because paper made from fiber-loaded pulp increasing the recovery and utilization of recycled fiber and optimizing virgin fiber yield by relying moreEXTENDING FIBER RESOURCES: FIBER LOADING RECYCLED FIBERAND MECHANICAL PULPS FOR LIGHTWEIGHT, HIGH

Abubakr, Said

234

A comparison between raw EPS output, (modied) BMA and extended LR using ECMWF EPS precipitation reforecasts  

E-Print Network [OSTI]

A comparison between raw EPS output, (modied) BMA and extended LR using ECMWF EPS precipitation (EPS). 2. Data sets, statistical methods and predictand denitions The data sets used in this study [1 and precipitation data from a reforecasting exper- iment with the ECMWF EPS system. Figure 1: BMA-tted pdf of 24-h

Schmeits, Maurice

235

The ULIRG NGC 6240: Luminous extended Xray emission and evidence for an AGN  

E-Print Network [OSTI]

spectrum can be well fit by emission from two components in roughly equal proportions: a thermal optically for the formation of this AGN. However, the lu­ minosity in the remaining extended thermal component is still et al. 1997). Within this core most of the ulti­ mate enigmatic power source of the FIR radiation

Greiner, Jochen

236

Fee-For-Service Contracts in the Pharmaceutical Industry (Extended Abstract)  

E-Print Network [OSTI]

Fee-For-Service Contracts in the Pharmaceutical Industry (Extended Abstract) Kathleen Martino and Yao Zhao Starting from 2005, the pharmaceutical industry has experienced a drastic change in the pricing contracts between manufacturers and distributors as the industry moved from the dominating Buy

Lin, Xiaodong

237

RecA-mediated SOS induction requires an extended filament conformation but no ATP hydrolysis  

E-Print Network [OSTI]

RecA-mediated SOS induction requires an extended filament conformation but no ATP hydrolysis filament on single-stranded DNA and hydrolyzes ATP. The RecA K72R (recA2201) muta- tion eliminates in the presence of ATP. Strains with this mutation do not undergo SOS induction in vivo. We have combined the K72R

Cox, Michael M.

238

SpineCare Foundation Postgraduate Scholarship 2014 Closing Date Extended to 16 December 2013  

E-Print Network [OSTI]

SpineCare Foundation Postgraduate Scholarship 2014 ­ Closing Date Extended to 16 December 2013 The SpineCare Foundation is offering either a masters (1 year award) or PhD (3 year award) program of the selected scholar, ranging from $24,653 - $36,706 per year tax free. The SpineCare Foundation will consider

239

Composite superstring model for hadrons and extended Virasoro superconformal symmetry with supercurrent constraints  

E-Print Network [OSTI]

Hadron dynamics is formulated in terms of interacting composite strings. Consistent composite string model with extended Virasoro superconformal symmetry is found. These composite strings carry flavour and chiral degrees of freedom on edging two-dimensional surfaces. Necessary correct description of string amplitudes without states of negative norms in the spectrum of physical states is reached when special supercurrents conditions are fulfilled.

V. A. Kudryavtsev

2008-09-18T23:59:59.000Z

240

YASIR: A Low-Latency, High-Integrity Security Retrofit for Legacy SCADA Systems (Extended Version)  

E-Print Network [OSTI]

YASIR: A Low-Latency, High-Integrity Security Retrofit for Legacy SCADA Systems (Extended Version security, and yet incurs minimal end-to-end communication latency. Keywords: SCADA network security, bump links between devices in legacy Supervisory Con- trol And Data Acquisition (SCADA) systems, on which

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Marginally trapped surfaces in L4 an extended Weierstrass-Bryant representation  

E-Print Network [OSTI]

Marginally trapped surfaces in L4 and an extended Weierstrass-Bryant representation Juan A. Aledoa-30203 Cartagena, Murcia, Spain. e-mail: pablo.mira@upct.es Date: February 2, 2005 Keywords: Bryant surfaces in L3, and the Bryant repre- sentation for mean curvature one surfaces in the hyperbolic 3-space

Gálvez, José Antonio

242

Basins of coexistence and extinction in spatially extended ecosystems of cyclically competing species  

E-Print Network [OSTI]

Basins of coexistence and extinction in spatially extended ecosystems of cyclically competing species Xuan Ni,1 Rui Yang,1,a Wen-Xu Wang,1 Ying-Cheng Lai,1,2,3 and Celso Grebogi3 1 School of species coexistence. In this pursuit almost all exist- ing works focus on the relevant dynamical behaviors

Lai, Ying-Cheng

243

MU FAPRI reports economic impact of extending ethanol tax credit, tariff Contact:Duane Dailey  

E-Print Network [OSTI]

. ­ Extending the current ethanol tax credit and tariff would boost corn-based fuel production -- and corn for corn as an ethanol fuel source would expand corn acreage by 1.7 million acres, said Seth Meyer, MU for blended fuel at the pump. "At the same time, blenders can pay more to ethanol plants that in turn pay

Noble, James S.

244

Density-functional theory of nonuniform classical liquids: An extended modified weighted-density approximation  

E-Print Network [OSTI]

Density-functional theory of nonuniform classical liquids: An extended modified weighted-density the approximationstreat long-rangeand short-rangepotentials. I. INTRODUCTION The density-functional theory of nonuniform of density- functional theory to the problem of freezing of classical liquids,4 and in particular

Likos, Christos N.

245

EXTENDING THE CONCEPTS OF RETURN PERIOD AND RETURN LEVEL TO A CHANGING CLIMATE  

E-Print Network [OSTI]

-Stationarity in Extremes (3) Risk Communication under Stationarity (4) Risk Communication under Climate Change (5;#12;(4) Risk Communication Under Climate Change · One Approach -- "Effective" return level Permit "return levelEXTENDING THE CONCEPTS OF RETURN PERIOD AND RETURN LEVEL TO A CHANGING CLIMATE Rick Katz Institute

Katz, Richard

246

Elevated CO2 levels affect development, motility, and fertility and extend life  

E-Print Network [OSTI]

Elevated CO2 levels affect development, motility, and fertility and extend life span August 5, 2008) Hypercapnia (high CO2 levels) occurs in a number of lung diseases and it is associated the response to nonanesthetic CO2 levels and show that levels exceeding 9% induce aberrant motility

Morimoto, Richard

247

SEMANTIC LEARNING MODEL AND EXTENDED STUDENT MODEL: TOWARDS AN AHAM-BASED ADAPTIVE SYSTEM  

E-Print Network [OSTI]

SEMANTIC LEARNING MODEL AND EXTENDED STUDENT MODEL: TOWARDS AN AHAM-BASED ADAPTIVE SYSTEM Hend hypermedia systems, we distinguish AHAM as the most popular reference model which is based on the Dexter hoc integration of the AHAM's user's model as well as the IMS/LIP and IEEE/PAPI standards. KEY WORDS

Paris-Sud XI, Universit de

248

Hamilton Cycles which Extend Transposition Matchings in Cayley Graphs of S n  

E-Print Network [OSTI]

Hamilton Cycles which Extend Transposition Matchings in Cayley Graphs of S n Frank Ruskey \\Lambda matching M b in Cay(B : S n ). We show here when n ? 4 that for any b 2 B, there is a Hamilton cycle in Cay only a Hamilton path, the question is still open and is, in fact, a special case of the more general

Savage, Carla D.

249

Analysis of Property-Preservation Capabilities of the ROX and ESh Hash Domain Extenders  

E-Print Network [OSTI]

Analysis of Property-Preservation Capabilities of the ROX and ESh Hash Domain Extenders Mohammad domain extension trans- forms are the Ramdom-Oracle-XOR (ROX) transform and the Enveloped Shoup (ESh showed that ESh is capable of preserving five important security notions; namely CR, message

250

Joint Turbo Equalization and Channel Estimation with Fixed-Lag Extended Kalman Filtering  

E-Print Network [OSTI]

Joint Turbo Equalization and Channel Estimation with Fixed-Lag Extended Kalman Filtering Xin Li turbo equalization receiver for data transmission over time-varying frequency-selective fading channels with different types of turbo equalizers demonstrates the advantage of the proposed turbo equalizer. I

Wong, Tan F.

251

What hides behind extended periods of youth unemployment in Bosnia and Herzegovina?  

E-Print Network [OSTI]

What hides behind extended periods of youth unemployment in Bosnia and Herzegovina? Evidence from This paper provides the first empirical analysis on youth unemployment duration in Bosnia and ongoing economic and political reforms, the old economic structure and patterns of em- ployment in Bosnia

Paris-Sud XI, Université de

252

Beyond 'Yes or No' Extending Access Control in Groupware with Awareness and Negotiation  

E-Print Network [OSTI]

notification and negotiation service, which is tightly integrated with a classical access control systemBeyond 'Yes or No' ­ Extending Access Control in Groupware with Awareness and Negotiation Oliver to documents in three real world fields of application, which have in common that they are very difficult

253

Extended light scattering model incorporating coherence for thin-film silicon solar cells  

E-Print Network [OSTI]

Extended light scattering model incorporating coherence for thin-film silicon solar cells Thomas film solar cells. The model integrates coherent light propagation in thin layers with a direct, non potential for light trapping in textured thin film silicon solar cells. VC 2011 American Institute

Lenstra, Arjen K.

254

BIOSIGNAL 2004, extended abstract Complex Analysis of Intracranial Hypertension in Traumatic  

E-Print Network [OSTI]

BIOSIGNAL 2004, extended abstract Complex Analysis of Intracranial Hypertension in Traumatic Brain from a stable state of normal ICP (hypertension (ICH; ICP > 25 mm of intracranial hypertension: (1) the difference between the minimum value in the ICH region and the maximum value

255

Ultrafast extended x-ray absorption fine structure ,,EXAFS...--theoretical considerations  

E-Print Network [OSTI]

13­20 to generate ultrafast x-ray pulses, however, the prospect of ultrafast EXAFS seems encouragingUltrafast extended x-ray absorption fine structure ,,EXAFS...--theoretical considerations Frank L by the recent experimental demonstration of ultrafast x-ray absorption spectroscopy, we present a framework

Cao, Jianshu

256

Proof of Activity: Extending Bitcoin's Proof of Work via Proof of Stake Iddo Bentov  

E-Print Network [OSTI]

Proof of Activity: Extending Bitcoin's Proof of Work via Proof of Stake Iddo Bentov Computer Mizrahi chromawallet.com alex.mizrahi@gmail.com Meni Rosenfeld Israeli Bitcoin Association meni@bitcoin.org.il Abstract We propose a new protocol for a cryptocurrency, that builds upon the Bitcoin protocol by combining

257

Schur multipliers of functions extended by zero Jimmy Dillies & Julien Giol  

E-Print Network [OSTI]

Schur multipliers of functions extended by zero Jimmy Dillies & Julien Giol November 5, 2006) t gC jimmy@math.tamu.edu - giol@math.tamu.edu 1 #12;The domains and ranges are 1 : C H [G:H] 1 , =2

Dillies, Jimmy

258

DESIGNING AN ECOLOGY OF DISTRIBUTED AGENTS EXTENDED ABSTRACT FOR MASTER'S THESIS PROPOSAL  

E-Print Network [OSTI]

DESIGNING AN ECOLOGY OF DISTRIBUTED AGENTS EXTENDED ABSTRACT FOR MASTER'S THESIS PROPOSAL December will explore possibilities for Internet applications by creating an ecology of distributed agents, a new will build a system that represents peoples' pres­ ence by creating an ecology of agents. The applica­ tion

259

The iTron Family of Geocast Games (Extended Abstract) Robert J. Hall  

E-Print Network [OSTI]

hand, while physical activity and motor skill development are inherent in athletic and sports gamesThe iTron Family of Geocast Games (Extended Abstract) Robert J. Hall AT&T Labs Research Florham Park, NJ, USA hall@research.att.com Abstract--Geocast games are a new class of digital multi- player

Fisher, Kathleen

260

QoS Negotiation in a Robotics Environment (Extended Klara Nahrstedt and Jonathan Smith \\Lambda  

E-Print Network [OSTI]

QoS Negotiation in a Robotics Environment (Extended Abstract) Klara Nahrstedt and Jonathan Smith, and by Hewlett­Packard. 1 This is our current telerobotics system configuration. 1 #12; 2. The media used in our is currently 5 frames/s. From the application properties and media requirements results that we need guaranteed

Nahrstedt, Klara

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Extended papers from NPAR 2010 Stylized ambient displays of digital media collections  

E-Print Network [OSTI]

Extended papers from NPAR 2010 Stylized ambient displays of digital media collections Tinghuai Wang collections of personal digital media. However, once captured, this media is infrequently accessed and often lies dormant on users' PCs. We present a system to breathe life into home digital media collections

Collomosse, John

262

Estimation of vehicle lateral tire-road forces: a comparison between extended and unscented Kalman filtering  

E-Print Network [OSTI]

Estimation of vehicle lateral tire-road forces: a comparison between extended and unscented Kalman of accident data reveals that losing the vehicle control is responsible for a huge proportion of car accidents. Preventing such kind of accidents using vehicle control systems, requires certain input data concerning

Paris-Sud XI, Universit de

263

Extending the utility of machine based height sensors to spatially monitor cotton growth  

E-Print Network [OSTI]

COTMAN using two sites selected from height data in place of six sites selected per COTMAN recommendations. The HMAP system was extended to monitor rate of growth in real time in addition to plant height by comparing historical plant height data recorded...

Geiger, David William

2004-09-30T23:59:59.000Z

264

Extending The Methodology Of X-ray Crystallography To Allow X-ray  

E-Print Network [OSTI]

, the radiation damage. While the radiation damage problem can be mitigated somewhat by using cryogenic techniques resolution without serious radiation damage to the specimens. Although X-ray crystallography becomesExtending The Methodology Of X-ray Crystallography To Allow X-ray Microscopy Without X-ray Optics

Miao, Jianwei "John"

265

The expressiveness of CSP extended by priority A.W. Roscoe  

E-Print Network [OSTI]

The expressiveness of CSP extended by priority (draft) A.W. Roscoe Oxford University Department of Computer Science October 17, 2014 Abstract In previous work [27, 26] the author defined a notion of CSP with such an operational semantics can be translated into CSP and therefore has a semantics in every model of CSP

Oxford, University of

266

Representation and Self-Configuration of Physical Entities in Extended Smart Grid Perimeter  

E-Print Network [OSTI]

1 Representation and Self-Configuration of Physical Entities in Extended Smart Grid Perimeter Zheng of Smart Grids to Smart Energy Management Systems in relevant domains, we propose a framework and a set. INTRODUCTION THE smaller scales of the smart grid may involve the de- centralized management of semi

Paris-Sud XI, Université de

267

AN EXTENDED FIELD OF CRATER STRUCTURES IN EGYPT: OBSERVATIONS AND HYPOTHESES. Ph. Pail-, B. Reynard2  

E-Print Network [OSTI]

AN EXTENDED FIELD OF CRATER STRUCTURES IN EGYPT: OBSERVATIONS AND HYPOTHESES. Ph. Pail- lou1 , B Analysis: Having initially located a possible crater field in southwestern Egypt using JERS- 1 radar images, 225 ? 215 km in size, is located in Southwest Egypt, in the vicinity of the Gilf Kebir plateau (Figure

Paris-Sud XI, Université de

268

Extended scaling factors for in situ cosmogenic nuclides: New measurements at low latitude  

E-Print Network [OSTI]

Extended scaling factors for in situ cosmogenic nuclides: New measurements at low latitude Darin by the intensity of energetic cosmic-ray nucleons, which changes rapidly with elevation. An incomplete knowledge, and that there has been an incomplete mapping of nucleon fluxes at high RC (low geomagnetic latitude). We report new

Zreda, Marek

269

Extending the Reach of a Rod Injected into a Cylinder Through Distributed Vibration  

E-Print Network [OSTI]

of rods fo- cused on the case of compression of a fixed length of rod inside of a frictionless cylinder [7Extending the Reach of a Rod Injected into a Cylinder Through Distributed Vibration Jay T. MIller. The injection speed (be- low a critical value that we uncover), as well as the ampli- tude and frequency

Reis, Pedro Miguel

270

Extending Q&A systems to dialogue systems Arne Jnsson & Magnus Merkel  

E-Print Network [OSTI]

in a dialogue. It is also possible to request further information about a TV program. TV- Guide, was implementedExtending Q&A systems to dialogue systems Arne Jönsson & Magnus Merkel NLPLAB, Department for simple question-answering. A simple Q&A system was developed to the brochure describing the tax account

Merkel, Magnus

271

Extending Q&A systems to dialogue systems Arne Jnsson & Magnus Merkel  

E-Print Network [OSTI]

in a dialogue. It is also possible to request further information about a TV program. TV-Guide, was implementedExtending Q&A systems to dialogue systems Arne Jönsson & Magnus Merkel NLPLAB, Department-specific information to allow for simple question-answering. A simple Q&A system was developed to the brochure

Merkel, Magnus

272

Health Science Molecular epidemiology of extended-spectrum B-lactamase (ESBL) carrying  

E-Print Network [OSTI]

and their children's unplanned hospital admission / Sue Higham. D,N.Sc. 2011 Mental health nurses' perspectivesHealth Science Molecular epidemiology of extended-spectrum B-lactamase (ESBL) carrying Enterobacteriaceae at ABM University Health Board / Caron Jones. Ph.D. 2012 From matrons to managers : the role

Martin, Ralph R.

273

Extending the Borders of Accident Investigation: Applying Novel Analysis Techniques to the Loss of the Brazilian  

E-Print Network [OSTI]

-1- Extending the Borders of Accident Investigation: Applying Novel Analysis Techniques to the Loss. In consequence, it is becoming increasingly difficult to identify the causes of incidents and accidents back to the development of a number of novel accident investigation techniques. Most of these approaches are intended

Johnson, Chris

274

Filtering Noisy ECG Signals Using the Extended Kalman Filter Based on a Modified Dynamic ECG Model  

E-Print Network [OSTI]

Filtering Noisy ECG Signals Using the Extended Kalman Filter Based on a Modified Dynamic ECG Model for the filtering of noisy ECG signals. The method is based on a modified nonlinear dynamic model, previously introduced for the generation of synthetic ECG signals. An automatic parameter selection method has also been

Paris-Sud XI, Université de

275

ROBUST 3-WAY TENSOR DECOMPOSITION AND EXTENDED STATE KALMAN FILTERING TO EXTRACT FETAL ECG  

E-Print Network [OSTI]

ROBUST 3-WAY TENSOR DECOMPOSITION AND EXTENDED STATE KALMAN FILTERING TO EXTRACT FETAL ECG Mohammad ABSTRACT This paper addresses the problem of fetal electrocardiogram (ECG) extraction from multichannel that are robust to outliers are proposed and used to better track weak traces of the fetal ECG. Then, the state

Boyer, Edmond

276

Fetal ECG Extraction by Extended State Kalman Filtering Based on Single-Channel Recordings  

E-Print Network [OSTI]

1 Fetal ECG Extraction by Extended State Kalman Filtering Based on Single-Channel Recordings M Bayesian filtering framework for extracting ECGs from a single- channel as encountered in the fetal ECG extraction from abdom- inal sensor. The recorded signals are modeled as the summation of several ECGs. Each

Paris-Sud XI, Université de

277

EXTENDED HOT HALOS AROUND ISOLATED GALAXIES OBSERVED IN THE ROSAT ALL-SKY SURVEY  

SciTech Connect (OSTI)

We place general constraints on the luminosity and mass of hot X-ray-emitting gas residing in extended 'hot halos' around nearby massive galaxies. We examine stacked images of 2165 galaxies from the 2MASS Isolated Galaxy Catalog as well as subsets of this sample based on galaxy morphology and K-band luminosity. We detect X-ray emission at high confidence (ranging up to nearly 10{sigma}) for each subsample of galaxies. The average L{sub X} within 50 kpc is 1.0 {+-} 0.1 (statistical) {+-}0.2 (systematic) Multiplication-Sign 10{sup 40} erg s{sup -1}, although the early-type galaxies are more than twice as luminous as the late-type galaxies. Using a spatial analysis, we also find evidence for extended emission around five out of seven subsamples (the full sample, the luminous galaxies, early-type galaxies, luminous late-type galaxies, and luminous early-type galaxies) at 92.7%, 99.3%, 89.3%, 98.7%, and 92.1% confidence, respectively. Several additional lines of evidence also support this conclusion and suggest that about 1/2 of the total emission is extended, and about 1/3 of the extended emission comes from hot gas. For the sample of luminous galaxies, which has the strongest evidence for extended emission, the average hot gas mass is 4 Multiplication-Sign 10{sup 9} M {sub Sun} within 50 kpc and the implied accretion rate is 0.4 M {sub Sun} yr{sup -1}.

Anderson, Michael E.; Bregman, Joel N. [Department of Astronomy, University of Michigan, Ann Arbor, MI 48109 (United States)] [Department of Astronomy, University of Michigan, Ann Arbor, MI 48109 (United States); Dai, Xinyu, E-mail: michevan@umich.edu, E-mail: jbregman@umich.edu, E-mail: xdai@ou.edu [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK 73019 (United States)] [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK 73019 (United States)

2013-01-10T23:59:59.000Z

278

Extending plasma transport theory to strong coupling through the concept of an effective interaction potential  

SciTech Connect (OSTI)

A method for extending traditional plasma transport theories into the strong coupling regime is presented. Like traditional theories, this is based on a binary scattering approximation, but where physics associated with many body correlations is included through the use of an effective interaction potential. The latter is simply related to the pair-distribution function. Modeling many body effects in this manner can extend traditional plasma theory to orders of magnitude stronger coupling. Theoretical predictions are tested against molecular dynamics simulations for electron-ion temperature relaxation as well as diffusion in one component systems. Emphasis is placed on the connection with traditional plasma theory, where it is stressed that the effective potential concept has precedence through the manner in which screening is imposed. The extension to strong coupling requires accounting for correlations in addition to screening. Limitations of this approach in the presence of strong caging are also discussed.

Baalrud, Scott D. [Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242 (United States)] [Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242 (United States); Daligault, Jrme [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2014-05-15T23:59:59.000Z

279

Chandra Observations of ULIRGs: Extended Hot Gas Halos in Merging Galaxies  

E-Print Network [OSTI]

We study the properties of hot gaseous halos in 10 nearby ultraluminous IRAS galaxies observed with the ACIS instrument on board Chandra. For all sample galaxies, diffuse soft X-ray emissions are found within ~10 kpc of the central region; their spectra are well fitted by a MEKAL model plus emission lines from alpha-elements and other ions. The temperature of the hot gas is about 0.7 keV and metallicity is about 1 solar. Outside the central region, extended hot gaseous halos are found for nine out of the ten ULIRGs. Most spectra of these extended halos can be fitted with a MEKAL model with a temperature of about 0.6 keV and a low metallicity (~ 0.1 solar). We discuss the implications of our results on the origin of X-ray halos in elliptical galaxies and the feedback processes associated with starbursts.

Z. Y. Huo; X. Y. Xia; S. J. Xue; S. Mao; Z. G. Deng

2004-05-09T23:59:59.000Z

280

A robust and efficient method for calculating the magnification of extended sources caused by gravitational lenses  

E-Print Network [OSTI]

To determine the magnification of an extended source caused by gravitational lensing one has to perform a two-dimensional integral over point-source magnifications in general. Since the point-source magnification jumps to an infinite value on caustics, special care is required. For a uniformly bright source, it has been shown earlier that the calculation simplifies if one determines the magnification from the area of the images of the extended source by applying Green's theorem so that one ends up with a one-dimensional integration over the image boundaries. This approach is discussed here in detail, and it is shown that it can be used to yield a robust and efficient method also for limb-darkened sources. It is also shown that the centroid shift can be calculated in a similar way.

M. Dominik

1998-04-06T23:59:59.000Z

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Radar cross section of triangular trihedral reflector with extended bottom plate.  

SciTech Connect (OSTI)

Trihedral corner reflectors are the preferred canonical target for SAR performance evaluation for many radar development programs. The conventional trihedrals have problems with substantially reduced Radar Cross Section (RCS) at low grazing angles, unless they are tilted forward, but in which case other problems arise. Consequently there is a need for better low grazing angle performance for trihedrals. This is facilitated by extending the bottom plate. A relevant analysis of RCS for an infinite ground plate is presented. Practical aspects are also discussed.

Brock, Billy C.; Doerry, Armin Walter

2009-05-01T23:59:59.000Z

282

EXTENDED X-RAY EMISSION IN THE VICINITY OF THE MICROQUASAR LS 5039: PULSAR WIND NEBULA?  

SciTech Connect (OSTI)

LS 5039 is a high-mass binary with a period of 4 days, containing a compact object and an O-star, one of the few high-mass binaries detected in {gamma}-rays. Our Chandra Advanced CCD Imaging Spectrometer observation of LS 5039 provided a high-significance ({approx}10{sigma}) detection of extended emission clearly visible for up to 1' from the point source. The spectrum of this emission can be described by an absorbed power-law model with photon index {Gamma} = 1.9 {+-} 0.3, somewhat softer than the point-source spectrum {Gamma} = 1.44 {+-} 0.07, with the same absorption, N{sub H} = (6.4 {+-} 0.6) x 10{sup 21} cm{sup -2}. The observed 0.5-8 keV flux of the extended emission is {approx_equal} 8.8 x 10{sup -14} erg s{sup -1}cm{sup -2} or 5% of the point-source flux; the latter is a factor of {approx}2 lower than the lowest flux detected so far. Fainter extended emission with comparable flux and a softer ({Gamma} {approx} 3) spectrum is detected at even greater radii (up to 2'). Two possible interpretations of the extended emission are a dust scattering halo and a synchrotron nebula powered by energetic particles escaping the binary. We discuss both of these scenarios and favor the nebula interpretation, although some dust contribution is possible. We have also found transient sources located within a narrow stripe south of LS 5039. We discuss the likelihood of these sources to be related to LS 5039.

Durant, Martin; Kargaltsev, Oleg [Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL (United States); Pavlov, George G.; Chang, Chulhoon; Garmire, Gordon P., E-mail: martin.durant@astro.ufl.edu [Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA (United States)

2011-07-01T23:59:59.000Z

283

Beyond the skin bag: on the moral responsibility of extended agencies  

E-Print Network [OSTI]

and extended agency The view of the subject as only the human individual is known as methodological individualism. This theory holds that subjects are human beings entirely contained in their skin bags (Clark 2003), that maintain their identity... to ride a bicycle. Be careful not to run into people or things, dont crash your bike or hurt yourself, and especially dont ride into the street without looking. Her responsibility with the bicycle is, however, considerably less momentous than...

Hanson, F. Allan

2009-03-01T23:59:59.000Z

284

Extending Penning trap mass measurements with SHIPTRAP to the heaviest elements  

SciTech Connect (OSTI)

Penning-trap mass spectrometry of radionuclides provides accurate mass values and absolute binding energies. Such mass measurements are sensitive indicators of the nuclear structure evolution far away from stability. Recently, direct mass measurements have been extended to the heavy elements nobelium (Z=102) and lawrencium (Z=103) with the Penning-trap mass spectrometer SHIPTRAP. The results probe nuclear shell effects at N=152. New developments will pave the way to access even heavier nuclides.

Block, M.; Ackermann, D.; Herfurth, F.; Hofmann, S. [GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, 64291 Darmstadt (Germany); Blaum, K. [Max-Planck-Institut fuer Kernphysik, 69117 Heidelberg, Germany and Ruprecht-Karls-Universitaet, 69120 Heidelberg (Germany); Droese, C.; Marx, G.; Schweikhard, L. [Ernst-Moritz-Arndt-Universitaet, 17487 Greifswald (Germany); Duellmann, Ch. E. [Johannes Gutenberg-Universitaet, 55099 Mainz, Germany and GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, 64291 Darmstadt, Germany and Helmholtz-Institut Mainz, 55099 Mainz (Germany); Eibach, M. [Ruprecht-Karls-Universitaet, 69120 Heidelberg, Germany and Johannes Gutenberg-Universitaet, 55099 Mainz (Germany); Eliseev, S. [Max-Planck-Institut fuer Kernphysik, 69117 Heidelberg (Germany); Haettner, E.; Plass, W. R.; Scheidenberger, C. [GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, 64291 Darmstadt, Germany and Justus-Liebig-Universitaet, 35392 Giessen (Germany); Hessberger, F. P. [GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, 64291 Darmstadt, Germany and Helmholtz-Institut Mainz, 55099 Mainz (Germany); Ramirez, E. Minaya [Helmholtz-Institut Mainz, 55099 Mainz, Germany and GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, 64291 Darmstadt (Germany); Nesterenko, D. [Petersburg Nuclear Physics Institute, Gatchina, 188300 St. Petersburg (Russian Federation); and others

2013-03-19T23:59:59.000Z

285

A nonlinear relativistic approach to mathematical representation of vacuum electromagnetism based on extended Lie derivative  

E-Print Network [OSTI]

This paper presents an alternative {\\it relativistic nonlinear} approach to the vacuum case of classical electrodynamics. Our view is based on the understanding that the corresponding differential equations should be dynamical in nature. So, they must represent local energy-momentum balance relations. Formally, the new equations are in terms of appropriately extended Lie derivative of $\\mathbb{R}^2$-valued differential 2-form along a $\\mathbb{R}^2$-valued 2-vector on Minkowski space-time.

Stoil Donev; Maria Tashkova

2014-02-21T23:59:59.000Z

286

WARM EXTENDED DENSE GAS AT THE HEART OF A COLD COLLAPSING DENSE CORE  

SciTech Connect (OSTI)

In order to investigate when and how the birth of a protostellar core occurs, we made survey observations of four well-studied dense cores in the Taurus molecular cloud using CO transitions in submillimeter bands. We report here the detection of unexpectedly warm (approx30-70 K), extended (radius of approx2400 AU), dense (a few times 10{sup 5} cm{sup -3}) gas at the heart of one of the dense cores, L1521F (MC27), within the cold dynamically collapsing components. We argue that the detected warm, extended, dense gas may originate from shock regions caused by collisions between the dynamically collapsing components and outflowing/rotating components within the dense core. We propose a new stage of star formation, 'warm-in-cold core stage (WICCS)', i.e., the cold collapsing envelope encases the warm extended dense gas at the center due to the formation of a protostellar core. WICCS would constitute a missing link in evolution between a cold quiescent starless core and a young protostar in class 0 stage that has a large-scale bipolar outflow.

Shinnaga, Hiroko; Phillips, Thomas G. [California Institute of Technology Submillimeter Observatory (CSO), 111 Nowelo Street, Hilo, HI 96720 (United States); Furuya, Ray S. [Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohoku Place, Hilo, HI 96720 (United States); Kitamura, Yoshimi, E-mail: shinnaga@submm.caltech.ed, E-mail: tgp@submm.caltech.ed, E-mail: rsf@subaru.naoj.or, E-mail: kitamura@isas.jaxa.j [Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510 (Japan)

2009-12-01T23:59:59.000Z

287

Assessment of the use of extended burnup fuel in light water power reactors  

SciTech Connect (OSTI)

This study has been conducted by Pacific Northwest Laboratory for the US Nuclear Regulatory Commission to review the environmental and economic impacts associated with the use of extended burnup nuclear fuel in light water power reactors. It has been proposed that current batch average burnup levels of 33 GWd/t uranium be increased to above 50 GWd/t. The environmental effects of extending fuel burnup during normal operations and during accident events and the economic effects of cost changes on the fuel cycle are discussed in this report. The physical effects of extended burnup on the fuel and the fuel assembly are also presented as a basis for the environmental and economic assessments. Environmentally, this burnup increase would have no significant impact over that of normal burnup. Economically, the increased burnup would have favorable effects, consisting primarily of a reduction: (1) total fuel requirements; (2) reactor downtime for fuel replacement; (3) the number of fuel shipments to and from reactor sites; and (4) repository storage requirements. 61 refs., 4 figs., 27 tabs.

Baker, D.A.; Bailey, W.J.; Beyer, C.E.; Bold, F.C.; Tawil, J.J.

1988-02-01T23:59:59.000Z

288

Energy-Momentum and Angular Momentum Carried by Gravitational Waves in Extended New General Relativity  

E-Print Network [OSTI]

In an extended, new form of general relativity, which is a teleparallel theory of gravity, we examine the energy-momentum and angular momentum carried by gravitational wave radiated from Newtonian point masses in a weak-field approximation. The resulting wave form is identical to the corresponding wave form in general relativity, which is consistent with previous results in teleparallel theory. The expression for the dynamical energy-momentum density is identical to that for the canonical energy-momentum density in general relativity up to leading order terms on the boundary of a large sphere including the gravitational source, and the loss of dynamical energy-momentum, which is the generator of \\emph{internal} translations, is the same as that of the canonical energy-momentum in general relativity. Under certain asymptotic conditions for a non-dynamical Higgs-type field $\\psi^{k}$, the loss of ``spin'' angular momentum, which is the generator of \\emph{internal} $SL(2,C)$ transformations, is the same as that of angular momentum in general relativity, and the losses of canonical energy-momentum and orbital angular momentum, which constitute the generator of Poincar\\'{e} \\emph{coordinate} transformations, are vanishing. The results indicate that our definitions of the dynamical energy-momentum and angular momentum densities in this extended new general relativity work well for gravitational wave radiations, and the extended new general relativity accounts for the Hulse-Taylor measurement of the pulsar PSR1913+16.

Eisaku Sakane; Toshiharu Kawai

2002-09-30T23:59:59.000Z

289

Detection of TeV Gamma-Rays from extended sources with Milagro  

E-Print Network [OSTI]

The Milagro gamma-ray observatory employs a water Cherenkov detector to observe extensive air showers produced by high-energy particles impacting in the Earth's atmosphere. A 4800 m$^{2}$ pond instrumented with 723 8" PMTs detects Cherenkov light produced by secondary air-shower particles. An array of 175 4000 liter water tanks surrounding the central pond detector was recently added, extending the physical area of the Milagro observatory to 40,000 m$^{2}$ and substantially increasing the sensitivity of the detector. Because of its wide field of view and high duty cycle, Milagro is ideal for monitoring the northern sky almost continuously ($>$90% duty cycle) in the 100 GeV to 100 TeV energy range. Here we discuss the first detection of TeV gamma-rays from the inner Galactic plane region. We also report the detection of an extended TeV source coincident with the EGRET source 3EG J0520+2556, as well as the observation of extended TeV emission from the Cygnus region of the Galactic plane.

Parkinson, P M S; Atkins, R; Benbow, W; Berley, D; Blaufuss, E; Coyne, D G; De Young, T R; Dingus, B L; Dorfan, D E; Ellsworth, R W; Fleysher, L; Gisler, G; Gonzlez, M M; Goodman, J A; Haines, T J; Hays, E; Hoffman, C M; Kelley, L A; Lansdell, C P; Linnemann, J T; McEnery, J E; Miller, R S; Mincer, A I; Morales, M F; Nmethy, P; Noyes, D; Ryan, J M; Samuelson, F W; Saz-Parkinson, P M; Shoup, A; Sinnis, G; Smith, A J; Sullivan, G W; Williams, D A; Wilson, M E; Xu, X W; Yodh, G B

2005-01-01T23:59:59.000Z

290

The formulation of General Relativity in extended phase space as a way to its quantization  

E-Print Network [OSTI]

Our attempts to find an explanation for quantum behavior of the Early Universe appeal, as a rule, to the Wheeler - DeWitt Quantum Geometrodynamics which relies upon Hamiltonian formulation of General Relativity proposed by Arnowitt, Deser and Misner (ADM). In spite of the fact that the basic ideas of this approach were put forward about fifty years ago, even now we do not have clear understanding what Hamiltonian formulation of General Relativity must be. An evidence for it gives a recent paper by Kiriushcheva and Kuzmin [arXiv:0809.0097], where the authors claim that the formulation by ADM and that by Dirac made in his seminal work of 1958 are not equivalent. If so, we face the question what formalism should be chosen. Another problem is that we need a well-grounded procedure of constructing a generator of transformations in phase space for all gravitational variables including gauge ones. It suggests the notion of extended phase space. After analyzing the situation, we show that Hamiltonian formulation in extended phase space is a real alternative to Dirac and ADM formulations and can be constructed to be equivalent to the original (Lagrangian) formulation of General Relativity. Quantization in extended phase space is straightforward and leads to a new description of quantum Universe in which an essential place is given to gauge degrees of freedom.

T. P. Shestakova

2009-11-30T23:59:59.000Z

291

Extended Dry Storage of Used Nuclear Fuel: Technical Issues: A USA Perspective  

SciTech Connect (OSTI)

Used nuclear fuel will likely be stored dry for extended periods of time in the USA. Until a final disposition pathway is chosen, the storage periods will almost definitely be longer than were originally intended. The ability of the important-to-safety structures, systems and components (SSC's) continue to meet storage and transport safety functions over extended times must be determined. It must be assured that there is no significant degradation of the fuel or dry cask storage systems. Also, it is projected that the maximum discharge burnups of the used nuclear fuel will increase. Thus, it is necessary to obtain data on high burnup fuel to demonstrate that the used nuclear fuel remains intact after extended storage. An evaluation was performed to determine the conditions that may lead to failure of dry storage SSC's. This paper documents the initial technical gap analysis performed to identify data and modeling needs to develop the desired technical bases to ensure the safety functions of dry stored fuel.

McConnell, Paul; Hanson, Brady D.; Lee, Moo; Sorenson, Ken B.

2011-10-28T23:59:59.000Z

292

EXTENDED STAR FORMATION IN THE INTERMEDIATE-AGE LARGE MAGELLANIC CLOUD STAR CLUSTER NGC 2209  

SciTech Connect (OSTI)

We present observations of the 1 Gyr old star cluster NGC 2209 in the Large Magellanic Cloud made with the GMOS imager on the Gemini South Telescope. These observations show that the cluster exhibits a main-sequence turnoff that spans a broader range in luminosity than can be explained by a single-aged stellar population. This places NGC 2209 amongst a growing list of intermediate-age (1-3 Gyr) clusters that show evidence for extended or multiple epochs of star formation of between 50 and 460 Myr in extent. The extended main-sequence turnoff observed in NGC 2209 is a confirmation of the prediction in Keller et al. made on the basis of the cluster's large core radius. We propose that secondary star formation is a defining feature of the evolution of massive star clusters. Dissolution of lower mass clusters through evaporation results in only clusters that have experienced secondary star formation surviving for a Hubble time, thus providing a natural connection between the extended main-sequence turnoff phenomenon and the ubiquitous light-element abundance ranges seen in the ancient Galactic globular clusters.

Keller, Stefan C.; Mackey, A. Dougal; Da Costa, Gary S. [Research School of Astronomy and Astrophysics, Australian National University, Canberra (Australia)

2012-12-10T23:59:59.000Z

293

Systematic Survey of Extended Lyman-alpha Sources over z~3-5  

E-Print Network [OSTI]

Spatially extended Ly-alpha sources which are faint and compact in coninuum are candidates for extremely young galaxies (age of ~intermediate-band imaging data taken with the Suprime-Cam on the Subaru Telescope. Our survey covers a field of view of 33' * 25' and a redshift range of 3.24extended Ly-alpha sources. The redshift distribution of these sources shows that this kind of objects are common in the early universe over the surveyed redshift range. The identified objects have typical sizes of \\~10-15 kpc and luminosities of ~10^42 ergs/s. Follow-up spectroscopy made for 7 of the 41 objects showed that our sample suffers from little contamination. All 7 objects have large equivalent widths of Ly-alpha emission line, all but one exceeding 240A in the rest frame. The large equivalent widths suggest that their extended Ly-a...

Sait, T; Okamura, S; Ouchi, M; Akiyama, M; Yoshida, M; Saito, Tomoki; Shimasaku, Kazuhiro; Okamura, Sadanori; Ouchi, Masami; Akiyama, Masayuki; Yoshida, Michitoshi

2006-01-01T23:59:59.000Z

294

Exact Solutions of Nonlinear Schrodinger's Equation with Dual Power-Law Nonlinearity by Extended Trial Equation Method  

E-Print Network [OSTI]

In this paper, we acquire the soliton solutions of the nonlinear Schrodinger's equation with dual power-law nonlinearity. Primiraly, we use the extended trial equation method to find exact solutions of this equation. Then, we attain some exact solutions including soliton solutions, rational and elliptic function solutions of this equation by using the extended trial equation method.

Hasan Bulut; Yusuf Pandir; Seyma Tuluce Demiray

2014-02-04T23:59:59.000Z

295

Is the Extended Red Emission due to CO? Philip D. Bennett, Graham M. Harper, and Alexander Brown  

E-Print Network [OSTI]

Is the Extended Red Emission due to CO? Philip D. Bennett, Graham M. Harper, and Alexander Brown. The Extended Red Emission (ERE) is a broad emission feature ob­ served between 5000 and 8000 š A in a large to be correct. The strongest known source of the ERE is the bipolar nebula (the ``Red Rect­ angle'') associated

Harper, Graham

296

Extended-burnup LWR (light-water reactor) fuel: The amount, characteristics, and potential effects on interim storage  

SciTech Connect (OSTI)

The results of a study on extended-burnup, light-water reactor (LWR) spent fuel are described in this report. The study was performed by Pacific Northwest Laboratory for the US Department of Energy (DOE). The purpose of the study was to collect and evaluate information on the status of in-reactor performance and integrity of extended-burnup LWR fuel and initiate the investigation of the effects of extending fuel burnup on the subsequent handling, interim storage, and other operations (e.g., rod consolidation and shipping) associated with the back end of the fuel cycle. The results of this study will aid DOE and the nuclear industry in assessing the effects on waste management of extending the useful in-reactor life of nuclear fuel. The experience base with extended-burnup fuel is now substantial and projections for future use of extended-burnup fuel in domestic LWRs are positive. The basic performance and integrity of the fuel in the reactor has not been compromised by extending the burnup, and the potential limitations for further extending the burnup are not severe. 104 refs., 15 tabs.

Bailey, W.J.

1989-03-01T23:59:59.000Z

297

THE POWER OF EXTENDED TOP-DOWN TREE TRANSDUCERS ANDREAS MALETTIy, JONATHAN GRAEHLz, MARK HOPKINSx, exh KEVIN KNIGHT{  

E-Print Network [OSTI]

E puttionl linguistis @see PQD PH for surveysA were one tightly integrtedF por exmE pleD topEdown treeTHE POWER OF EXTENDED TOP-DOWN TREE TRANSDUCERS £ ANDREAS MALETTIy, JONATHAN GRAEHLz, MARK HOPKINSx, exh KEVIN KNIGHT{ Abstract. Extended top-down tree transducers (transducteurs generalises descendants

Reyle, Uwe

298

ECG Denoising using Angular Velocity as a State and an Observation in an Extended Kalman Filter Framework  

E-Print Network [OSTI]

ECG Denoising using Angular Velocity as a State and an Observation in an Extended Kalman Filter of synthetic ECG signals. The proposed method considers the angular velocity of ECG signal, as one Terms-- Extended Kalman Filter (EKF), Angular velocity, Electrocardiogram (ECG), ECG Dynamical Model

Paris-Sud XI, Université de

299

Verification of Gamma Knife extend system based fractionated treatment planning using EBT2 film  

SciTech Connect (OSTI)

Purpose: This paper presents EBT2 film verification of fractionated treatment planning with the Gamma Knife (GK) extend system, a relocatable frame system for multiple-fraction or serial multiple-session radiosurgery.Methods: A human head shaped phantom simulated the verification process for fractionated Gamma Knife treatment. Phantom preparation for Extend Frame based treatment planning involved creating a dental impression, fitting the phantom to the frame system, and acquiring a stereotactic computed tomography (CT) scan. A CT scan (Siemens, Emotion 6) of the phantom was obtained with following parameters: Tube voltage110 kV, tube current280 mA, pixel size0.5 0.5 and 1 mm slice thickness. A treatment plan with two 8 mm collimator shots and three sectors blocking in each shot was made. Dose prescription of 4 Gy at 100% was delivered for the first fraction out of the two fractions planned. Gafchromic EBT2 film (ISP Wayne, NJ) was used as 2D verification dosimeter in this process. Films were cut and placed inside the film insert of the phantom for treatment dose delivery. Meanwhile a set of films from the same batch were exposed from 0 to 12 Gy doses for calibration purposes. An EPSON (Expression 10000 XL) scanner was used for scanning the exposed films in transparency mode. Scanned films were analyzed with inhouse written MATLAB codes.Results: Gamma index analysis of film measurement in comparison with TPS calculated dose resulted in high pass rates >90% for tolerance criteria of 1%/1 mm. The isodose overlay and linear dose profiles of film measured and computed dose distribution on sagittal and coronal plane were in close agreement.Conclusions: Through this study, the authors propose treatment verification QA method for Extend frame based fractionated Gamma Knife radiosurgery using EBT2 film.

Natanasabapathi, Gopishankar; Bisht, Raj Kishor [Gamma Knife Unit, Department of Neurosurgery, Neurosciences Centre, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029 (India)] [Gamma Knife Unit, Department of Neurosurgery, Neurosciences Centre, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029 (India)

2013-12-15T23:59:59.000Z

300

Operational Challenges of Extended Dry Storage of Spent Nuclear Fuel - 12550  

SciTech Connect (OSTI)

As a result of the termination of the Yucca Mountain used fuel repository program and a continuing climate of uncertainty in the national policy for nuclear fuel disposition, the likelihood has increased that extended storage, defined as more than 60 years, and subsequent transportation of used nuclear fuel after periods of extended storage may become necessary. Whether at the nation's 104 nuclear energy facilities, or at one or more consolidated interim storage facilities, the operational challenges of extended storage and transportation will depend upon the future US policy for Used Fuel Management and the future Regulatory Framework for EST, both of which should be developed with consideration of their operational impacts. Risk insights into the regulatory framework may conclude that dry storage and transportation operations should focus primarily on ensuring canister integrity. Assurance of cladding integrity may not be beneficial from an overall risk perspective. If assurance of canister integrity becomes more important, then mitigation techniques for potential canister degradation mechanisms will be the primary source of operational focus. If cladding integrity remains as an important focus, then operational challenges to assure it would require much more effort. Fundamental shifts in the approach to design a repository and optimize the back-end of the fuel cycle will need to occur in order to address the realities of the changes that have taken place over the last 30 years. Direct disposal of existing dual purpose storage and transportation casks will be essential to optimizing the back end of the fuel cycle. The federal used fuel management should focus on siting and designing a repository that meets this objective along with the development of CIS, and possibly recycling. An integrated approach to developing US policy and the regulatory framework must consider the potential operational challenges that they would create. Therefore, it should be integral to these efforts to redefine retrievability to apply to the dual purpose cask, and not to apply to individual assemblies. (authors)

Nichol, M. [Nuclear Energy Institute, Washington DC (United States)

2012-07-01T23:59:59.000Z

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301

Conditions for experimental Boson-sampling computer to disprove the Extended Church-Turing thesis  

E-Print Network [OSTI]

We consider the experimentally verifiable Extended Church-Turing thesis and derive sufficient conditions for an imperfect experimental realization of the Boson-sampling computer of Aaronson & Arkhipov to disprove it. Since the effect of the photon mode mismatch and the network imperfections (noise) are already known, we focus on the multi-photon and vacuum components of the input, the photons losses, and the detector dark counts. The main result is the complete set of sufficient conditions on the experimental imperfections for scalability of the experimental BS computer.

Shchesnovich, V S

2014-01-01T23:59:59.000Z

302

Apparatus and method for measuring the uniformity of the nuclide distribution in an extended source  

SciTech Connect (OSTI)

A technical description is given of an apparatus for remote sensing of the activity distribution along a radioactive source, which is based on gamma scanning. Test results with extended sources are reported and recommendations are made on improving the equipment. The apparatus was tested with line sources of californium-252, curium-244, and americium-241. The amount of californium-252 was determined by a relative method involving comparison of the neutron count rates from the test source and a standard one. The amounts of curium and americium in the sources were determined by a radiometric method after dissolution.

Bondarev, A.A.; Gavrilov, V.D.; Radchenko, V.M.; Berkutov, V.L.

1988-01-01T23:59:59.000Z

303

Extending the Standard Model Effective Field Theory with the Complete Set of Dimension-7 Operators  

E-Print Network [OSTI]

We present a complete list of the independent dimension-7 operators that are constructed using the Standard Model degrees of freedom and are invariant under the Standard Model gauge group. This list contains only 20 independent operators; far fewer than the 63 operators available at dimension 6. All of these dimension-7 operators contain fermions and violate lepton number, and 7 of the 20 violate baryon number as well. This result extends the Standard Model Effective Field Theory (SMEFT) and allows a more detailed exploration of the structure and properties of possible deformations from the Standard Model Lagrangian.

Landon Lehman

2014-12-26T23:59:59.000Z

304

Nuclear Energy Research Initiative. Development of a Stabilized Light Water Reactor Fuel Matrix for Extended Burnup  

SciTech Connect (OSTI)

The main objective of this project is to develop an advanced fuel matrix capable of achieving extended burnup while improving safety margins and reliability for present operations. In the course of this project, the authors improve understanding of the mechanism for high burnup structure (HBS) formation and attempt to design a fuel to minimize its formation. The use of soluble dopants in the UO{sub 2} matrix to stabilize the matrix and minimize fuel-side corrosion of the cladding is the main focus.

BD Hanson; J Abrefah; SC Marschman; SG Prussin

2000-09-08T23:59:59.000Z

305

Extended models of gravity in SNIa cosmological data using genetic algorithms  

E-Print Network [OSTI]

In this talk I explained briefly the advantages of using genetic algorithms on any measured data but specially astronomical ones. This kind of algorithms are not only a better computational paradigm, but they also allow for a more profound data treatment enhancing theoretical developments. As an example, I will use the SNIa cosmological data to fit the extended metric theories of gravity of Carranza et al. (2013, 2014) showing that the best parameters combination deviate from theoretical predicted ones by a minimal amount. This means that these kind of gravitational extensions are statistically robust and show that no dark matter and/or energy is required to explain the observations.

Lpez-Corona, O

2015-01-01T23:59:59.000Z

306

Globular clusters with the extended horizontal-branch as remaining cores of galaxy building blocks  

E-Print Network [OSTI]

The relics of building blocks that made stellar halo and bulge are yet to be discovered unless they were completely disrupted throughout the history of the Galaxy. Here we suggest that about 25% of the Milky Way globular clusters have characteristics of the remaining cores of these early building blocks rather than genuine star clusters. They are clearly distinct from other normal globular clusters in the presence of extended horizontal-branch and multiple stellar populations, in mass (brightness), and most importantly in orbital kinematics. Based on this result, a three-stage formation picture of the Milky Way is suggested, which includes early mergers, collapse, and later accretion.

Young-Wook Lee; Hansung B. Gim; Chul Chung

2007-07-11T23:59:59.000Z

307

Improved self-absorption correction for extended x-ray absorption fine-structure measurements  

SciTech Connect (OSTI)

Extended x-ray absorption fine-structure (EXAFS) data collected in the fluorescence mode are susceptible to an apparent amplitude reduction due to the self-absorption of the fluorescing photon by the sample before it reaches a detector. Previous treatments have made the simplifying assumption that the effect of the EXAFS on the correction term is negligible, and that the samples are in the thick limit. We present a nearly exact treatment that can be applied for any sample thickness or concentration, and retains the EXAFS oscillations in the correction term.

Booth, C.H.; Bridges, F.

2003-06-04T23:59:59.000Z

308

Networks of the Future: Extending our senses into the physical world  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory | NationalJohn Cyber SecurityAlamosExtending our senses into the

309

Extending the Correlation of $L_R - L_X$ to Gamma Ray Bursts  

E-Print Network [OSTI]

The well-known correlation between the radio luminosity ($L_R$) and the X-ray luminosity ($L_X$) $L_R / L_X \\simeq 10^{-5}$ holds for a variety of objects like active galactic nuclei, galactic black holes, solar flares and cool stars. Here we extend the relation to gamma-ray bursts (GRBs), and find the GRBs also lay on the same $L_R-L_X$ relation, with a slightly different slope as $L_R \\propto L_X^{1.1}$. This relation implies the explosions in different scales may have a common underlying origin.

Lv, Jing; Zou, Yuan-Chuan; Lei, Wei-Hua; Wu, Qingwen; Wang, Ding-Xiong

2015-01-01T23:59:59.000Z

310

Molecular extended thermodynamics of rarefied polyatomic gases and wave velocities for increasing number of moments  

SciTech Connect (OSTI)

Molecular extended thermodynamics of rarefied polyatomic gases is characterized by two hierarchies of equations for moments of a suitable distribution function in which the internal degrees of freedom of a molecule is taken into account. On the basis of physical relevance the truncation orders of the two hierarchies are proven to be not independent on each other, and the closure procedures based on the maximum entropy principle (MEP) and on the entropy principle (EP) are proven to be equivalent. The characteristic velocities of the emerging hyperbolic system of differential equations are compared to those obtained for monatomic gases and the lower bound estimate for the maximum equilibrium characteristic velocity established for monatomic gases (characterized by only one hierarchy for moments with truncation order of moments N) by Boillat and Ruggeri (1997) (?{sub (N)}{sup E,max})/(c{sub 0}) ??(6/5 (N?1/2 )),(c{sub 0}=?(5/3 k/m T)) is proven to hold also for rarefied polyatomic gases independently from the degrees of freedom of a molecule. -- Highlights: Molecular extended thermodynamics of rarefied polyatomic gases is studied. The relation between two hierarchies of equations for moments is derived. The equivalence of maximum entropy principle and entropy principle is proven. The characteristic velocities are compared to those of monatomic gases. The lower bound of the maximum characteristic velocity is estimated.

Arima, Takashi, E-mail: tks@stat.nitech.ac.jp [Center for Social Contribution and Collaboration, Nagoya Institute of Technology (Japan); Mentrelli, Andrea, E-mail: andrea.mentrelli@unibo.it [Department of Mathematics and Research Center of Applied Mathematics (CIRAM), University of Bologna (Italy); Ruggeri, Tommaso, E-mail: tommaso.ruggeri@unibo.it [Department of Mathematics and Research Center of Applied Mathematics (CIRAM), University of Bologna (Italy)

2014-06-15T23:59:59.000Z

311

Application of a highly variable gauge stabilizer at Wytch Farm to extend the ERD envelope  

SciTech Connect (OSTI)

Wytch Farm operations have demonstrated that downhole adjustable, highly variable gauge stabilizers (HVGSs) can cost-effectively extend the reach of extended-reach-drilling (ERD) wells. This paper will describe the operation and benefits of using an HVGS at the Wytch Farm ERD project to control hole inclination while minimizing time consuming oriented drilling. The first Wytch Farm well drilled with an HVGS had a Reach/TVD ratio of 4.22 at a true vertical depth (TVD) of 1603 m. The total depth was 7522 m with a reach of 6732 m, which set a new world record for reach at the subject reservoir depth. The second well drilled with an HVGS had a Reach/TVD ratio of 4.28 at a TVD of 1592 m. The HVGS was used in conjunction with an instrumented steerable motor with near-bit inclination sensor. The HVGS is controlled from the surface through a series of mud pump flow sequences, and communicates the blades` commanded and measured positions to the surface with mud pulse telemetry. Wytch Farm operations required that the HVGS telemetry be modified to Cow compatibility with previously contracted measurement-while-drilling/logging-while-drilling (MWD/LWD) systems. This paper will describe the new telemetry scheme and will document the success of the HVGS in receiving commands and in actuating to desired positions at measured depths in excess of 7300 m and departures beyond 6100 m.

Odell, A.C. II; Payne, M.L.; Cocking, D.A.

1995-12-31T23:59:59.000Z

312

Exact solutions of an extended Bose-Hubbard model with E2 symmetry  

E-Print Network [OSTI]

An extended Bose-Hubbard (BH) model with number-dependent multi-site and infinite-range hopping is proposed, which, similar to the original BH model, describes a phase transition between the delocalized super-fluid (SF) phase and localized Mott insulator (MI) phase. It is shown that this extended model with local Euclidean E2 symmetry is exactly solvable when on-site local potential or disorder is included, while the model without local potential or disorder is quasi-exactly solvable, which means only a part of the excited states including the ground state being exactly solvable. As applications of the exact solution for the ground state, phase diagram of the model in 1D without local potential and on-site disorder for filling factor rho = 1 with M = 6 sites and that with M = 10 are obtained. The probabilities to detect n particles on a single site, Pn, for n = 0, 1, 2 as functions of the control parameter U/t in these two cases are also calculated. It is shown that the critical point in Pn and in the entanglement measure is away from that of the SF-MI transition determined in the phase analysis. It is also shown that the the model-independent entanglement measure is related with Pn, which, therefore, may be practically useful because Pn is measurable experimentally.

Feng Pan; Ningyun Zhang; Qianyun Wang; J. P. Draayer

2014-04-11T23:59:59.000Z

313

Extended space expectation values of position related operators for hydrogen-like quantum system evolutions  

SciTech Connect (OSTI)

The expectation value definitions over an extended space from the considered Hilbert space of the system under consideration is given in another paper of the second author in this symposium. There, in that paper, the conceptuality rather than specification is emphasized on. This work uses that conceptuality to investigate the time evolutions of the position related operators' expectation values not in its standard meaning but rather in a new version of the definition over not the original Hilbert space but in the space obtained by extensions via introducing the images of the given initial wave packet under the positive integer powers of the system Hamiltonian. These images may not be residing in the same space of the initial wave packet when certain singularities appear in the structure of the system Hamiltonian. This may break down the existence of the integrals in the definitions of the expectation values. The cure is the use of basis functions in the abovementioned extended space and the sandwiching of the target operator whose expectation value is under questioning by an appropriately chosen operator guaranteeing the existence of the relevant integrals. Work specifically focuses on the hydrogen-like quantum systems whose Hamiltonians contain a polar singularity at the origin.

Kalay, Berfin; Demiralp, Metin [?stanbul Technical University, Informatics Institute, Maslak, 34469, ?stanbul (Turkey)

2014-10-06T23:59:59.000Z

314

Spatially extended K I 7699 emission in the nebula of VY CMa: Kinematics and geometry  

E-Print Network [OSTI]

Long-slit echelle spectra reveal bright extended emission from the K I lambda7699 resonance line in the reflection nebula surrounding the extreme red supergiant VY Canis Majoris. The central star has long been known for its unusually-bright K I emission lines, but this is the first report of intrinsic emission from K I in the nebula. The extended emission is not just a reflected spectrum of the star, but is due to resonant scattering by K atoms in the outer nebula itself, and is therefore a valuable probe of the kinematics and geometry of VY CMa's circumstellar environment. Dramatic velocity structure is seen in the long-slit spectra, and most lines of sight intersect multiple distinct velocity components. A faint ``halo'' at large distances from the star does appear to show a reflected spectrum, however, and suggests a systemic velocity of +40 km/s with respect to the Sun. The most striking feature is blueshifted emission from the filled interior of a large shell seen in images; the kinematic structure is reminiscent of a Hubble flow, and provides strong evidence for asymmetric and episodic mass loss due to localized eruptions on the star's surface.

Nathan Smith

2004-02-13T23:59:59.000Z

315

Generalized spherically symmetric gravitational model: Hamiltonian dynamics in extended phase space and BRST charge  

E-Print Network [OSTI]

We construct Hamiltonian dynamics of the generalized spherically symmetric gravitational model in extended phase space. We start from the Faddeev - Popov effective action with gauge-fixing and ghost terms, making use of gauge conditions in differential form. It enables us to introduce missing velocities into the Lagrangian and then construct a Hamiltonian function according a usual rule which is applied for systems without constraints. The main feature of Hamiltonian dynamics in extended phase space is that it can be proved to be completely equivalent to Lagrangian dynamics derived from the effective action. We find a BRST invariant form of the effective action by adding terms not affecting Lagrangian equations. After all, we construct the BRST charge according to the Noether theorem. Our algorithm differs from that by Batalin, Fradkin and Vilkovisky, but the resulting BRST charge generates correct transformations for all gravitational degrees of freedom including gauge ones. Generalized spherically symmetric model imitates the full gravitational theory much better then models with finite number of degrees of freedom, so that one can expect appropriate results in the case of the full theory.

T. P. Shestakova

2014-06-12T23:59:59.000Z

316

The status of the Lambda term in quantum geometrodynamics in extended phase space  

E-Print Network [OSTI]

S. Weinberg pointed out a way to introduce a cosmological term by modifying the theory of gravity. This modification would be justified if the Einstein equations with the cosmological term could be obtained in the classical limit of some physically satisfied quantum theory of gravity. We propose to consider quantum geometrodynamics in extended phase space as a candidate for such a theory. Quantum geometrodynamics in extended phase space aims at giving a selfconsistent description of the integrated system ``the physical object (the Universe) + observation means'', observation means being represented by a reference frame. The Lambda term appears in classical equations under certain gauge conditions and characterizes the state of gravitational vacuum related to a chosen reference frame. The eigenvalue spectrum of Lambda depends on a concrete cosmological model and can be found by solving the Schrodinger equation for a wave function of the Universe. The proposed version of quantum geometrodynamics enables one to make predictions concerning probable values of the Lambda term at various stages of cosmological evolution.

T. P. Shestakova

2000-10-05T23:59:59.000Z

317

Hamiltonian formulation for the theory of gravity and canonical transformations in extended phase space  

E-Print Network [OSTI]

A starting point for the present work was the statement recently discussed in the literature that two Hamiltonian formulations for the theory of gravity, the one proposed by Dirac and the other by Arnowitt - Deser - Misner, may not be related by a canonical transformation. In its turn, it raises a question about the equivalence of these two Hamiltonian formulations and their equivalence to the original formulation of General Relativity. We argue that, since the transformation from components of metric tensor to the ADM variables touches gauge degrees of freedom, which are non-canonical from the point of view of Dirac, the problem cannot be resolved in the limits of the Dirac approach. The proposed solution requires the extension of phase space by treating gauge degrees of freedom on an equal footing with other variables and introducing missing velocities into the Lagrangian by means of gauge conditions in differential form. We illustrate with a simple cosmological model the features of Hamiltonian dynamics in extended phase space. Then, we give a clear proof for the full gravitational theory that the ADM-like transformation is canonical in extended phase space in a wide enough class of possible parametrizations.

T. P. Shestakova

2011-02-01T23:59:59.000Z

318

The All-Wavelength Extended Groth Strip International Survey(AEGIS) Data Sets  

SciTech Connect (OSTI)

In this the first of a series of Letters, we present a description of the panchromatic data sets that have been acquired in the Extended Groth Strip region of the sky. Our survey, the All-wavelength Extended Groth Strip International Survey (AEGIS), is intended to study the physical properties and evolutionary processes of galaxies at z{approx}1. It includes the following deep, wide-field imaging data sets: Chandra/ACIS X-ray (0.5-10 keV), GALEX ultraviolet (1200-2500 Angstroms), CFHT/MegaCam Legacy Survey optical (3600-9000 Angstroms), CFHT/CFH12K optical (4500-9000 Angstroms), Hubble Space Telescope/ACS optical (4400-8500 Angstroms), Palomar/WIRC near-infrared (1.2-2.2 {micro}m), Spitzer/IRAC mid-infrared (3.6-8.0 {micro}m), Spitzer/MIPS far-infrared (24-70 {micro}m), and VLA radio continuum (6-20 cm). In addition, this region of the sky has been targeted for extensive spectroscopy using the DEIMOS spectrograph on the Keck II 10 m telescope. Our survey is compared to other large multiwavelength surveys in terms of depth and sky coverage.

Davis, M.; Guhathakurta, P.; Konidaris, N.P.; Newman, J.A.; Ashby, M.L.N.; Biggs, A.D.; Barmby, P.; Bundy, K.; Chapman, S.C.; Coil,A.L.; Conselice, C.J.; Cooper, M.C.; Croton, D.J.; Eisenhardt, P.R.M.; Ellis, R.S.; Faber, S.M.; Fang, T.; Fazio, G.G.; Georgakakis, A.; Gerke,B.F.; Goss, W.M.; Gwyn, S.; Harker, J.; Hopkins, A.M.; Huang, J.-S.; Ivison, R.J.; Kassin, S.A.; Kirby, E.N.; Koekemoer, A.M.; Koo, D.C.; Laird, E.S.; Le Floc'h, E.; Lin, L.; Lotz, J.M.; Marshall, P.J.; Martin,D.C.; Metevier, A.J.; Moustakas, L.A.; Nandra, K.; Noeske, K.G.; Papovich, C.; Phillips, A.C.; Rich,R. M.; Rieke, G.H.; Rigopoulou, D.; Salim, S.; Schiminovich, D.; Simard, L.; Smail, I.; Small,T.A.; Weiner,B.J.; Willmer, C.N.A.; Willner, S.P.; Wilson, G.; Wright, E.L.; Yan, R.

2006-10-13T23:59:59.000Z

319

The All-wavelength Extended Groth Strip International Survey (AEGIS) Data Sets  

SciTech Connect (OSTI)

In this the first of a series of ''Letters'', we present a description of the panchromatic data sets that have been acquired in the Extended Groth Strip region of the sky. Our survey, the All-wavelength Extended Groth Strip International Survey (AEGIS), is intended to study the physical properties and evolutionary processes of galaxies at z {approx} 1. It includes the following deep, wide-field imaging data sets: Chandra/ACIS{sup 30} X-ray (0.5-10 keV), GALEX{sup 31} ultraviolet (1200-2500 A), CFHT/MegaCam Legacy Survey{sup 32} optical (3600-9000 {angstrom}), CFHT/CFH12K optical (4500-9000 {angstrom}), Hubble Space Telescope/ACS{sup 33} optical (4400-8500 {angstrom}), Palomar/WIRC{sup 34} near-infrared (1.2-2.2 {micro}m), Spitzer/IRAC{sup 35} mid-infrared (3.6-8.0 {micro}m), Spitzer/MIPS far-infrared (24-70 {micro}m), and VLA{sup 36} radio continuum (6-20 cm). In addition, this region of the sky has been targeted for extensive spectroscopy using the DEIMOS spectrograph on the Keck II 10 m telescope{sup 37}. Our survey is compared to other large multiwavelength surveys in terms of depth and sky coverage.

Davis, M.; Guhathakurta, P.; Konidaris, N.; Newman, J.A.; Ashby, M.L.N.; Biggs, A.D.; Barmby, P.; Bundy, K.; Chapman, S.; Coil, A.L.; Conselice, C.; Cooper, M.; Croton,; Eisenhardt, P.; Ellis, R.; Faber, S.; Fang, T.; Fazio, G.G.; Georgakakis, A.; Gerke, B.; Goss, W.M.; /UC, Berkeley, Astron. Dept. /Lick Observ. /LBL, Berkeley

2006-07-21T23:59:59.000Z

320

Stellar Metallicity of the Extended Disk and Distance of the Spiral Galaxy NGC 3621  

E-Print Network [OSTI]

Low resolution ESO VLT/FORS spectra of blue supergiant stars are analyzed to determine stellar metallicities (based on elements such as Fe, Ti, Mg) in the extended disk of the spiral galaxy NGC3621. Mildly subsolar metallicity (-0.30 dex) is found for the outer objects beyond 7 kpc independent of galactocentric radius and compatible with the absence of a metallicity gradient confirming the results of a recent investigation of interstellar medium HII region gas oxygen abundances. The stellar metallicities are slightly higher than those from the HII regions when based on measurements of the weak forbidden auroral oxygen line at 4363 AE but lower than the ones obtained with the R23 strong line method. It is shown that the present level of metallicity in the extended disk cannot be the result of chemical evolution over the age of the disk with the present rate of in situ star formation. Additional mechanisms must be involved. In addition to metallicity, stellar effective temperatures, gravities, interstellar redd...

Kudritzki, Rolf-Peter; Bresolin, Fabio; Hosek, Matthew W; Przybilla, Norbert

2014-01-01T23:59:59.000Z

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321

THE EXTENDED NARROW-LINE REGION OF TWO TYPE-I QUASI-STELLAR OBJECTS  

SciTech Connect (OSTI)

We investigate the narrow-line region (NLR) of two radio-quiet QSOs, PG1012+008 and PG1307+085, using high signal-to-noise spatially resolved long-slit spectra obtained with FORS1 at the Very Large Telescope. Although the emission is dominated by the point-spread function of the nuclear source, we are able to detect extended NLR emission out to several kiloparsec scales in both QSOs by subtracting the scaled central spectrum from outer spectra. In contrast to the nuclear spectrum, which shows a prominent blue wing and a broad line profile of the [O III] line, the extended emission reveals no clear signs of large-scale outflows. Exploiting the wide wavelength range, we determine the radial change of the gas properties in the NLR, i.e., gas temperature, density, and ionization parameter, and compare them with those of Seyfert galaxies and type-II QSOs. The QSOs have higher nuclear temperature and lower electron density than Seyferts, but show no significant difference compared to type-II QSOs, while the ionization parameter decreases with radial distance, similar to the case of Seyfert galaxies, For PG1012+008, we determine the stellar-velocity dispersion of the host galaxy. Combined with the black hole mass, we find that the luminous radio-quiet QSO follows the local M{sub BH}-{sigma}{sub *} relation of active galactic nuclei.

Oh, Semyeong; Woo, Jong-Hak [Astronomy Program, Department of Physics and Astronomy, Seoul National University, Seoul 151-742 (Korea, Republic of); Bennert, Vardha N. [Physics Department, California Polytechnic State University San Luis Obispo, CA 93407 (United States); Jungwiert, Bruno [Astronomical Institute, Academy of Sciences of the Czech Republic, Bocni II 1401/1a, CZ-141 31 Prague (Czech Republic); Haas, Martin [Astronomisches Institut, Ruhr-Universitaet Bochum, Universitaetsstrasse 150, D-44801 Bochum (Germany); Leipski, Christian [Max-Planck Institut fuer Astronomie, Koenigstuhl 17, D-69117 Heidelberg (Germany); Albrecht, Marcus, E-mail: smoh@astro.snu.ac.kr, E-mail: woo@astro.snu.ac.kr, E-mail: vbennert@calpoly.edu, E-mail: bruno@ig.cas.cz, E-mail: haas@astro.rub.de, E-mail: leipski@mpia-hd.mpg.de, E-mail: malbrecht@astro.uni-bonn.de [Argelander-Institut fuer Astronomie, Auf dem Huegel 71, 53121 Bonn (Germany)

2013-04-20T23:59:59.000Z

322

ON THE EVOLUTION OF THE CORES OF RADIO SOURCES AND THEIR EXTENDED RADIO EMISSION  

SciTech Connect (OSTI)

The work in this paper aims at determining the evolution and possible co-evolution of radio-loud active galactic nuclei (AGNs) and their cores via their radio luminosity functions (i.e., total and core RLFs, respectively). Using a large combined sample of 1063 radio-loud AGNs selected at low radio frequency, we investigate the RLF at 408 MHz of steep-spectrum radio sources. Our results support a luminosity-dependent evolution. Using core flux density data of the complete sample 3CRR, we investigate the core RLF at 5.0 GHz. Based on the combined sample with incomplete core flux data, we also estimate the core RLF using a modified factor of completeness. Both results are consistent and show that the comoving number density of radio cores displays a persistent decline with redshift, implying a negative density evolution. We find that the core RLF is obviously different from the total RLF at the 408 MHz band which is mainly contributed by extended lobes, implying that the cores and extended lobes could not be co-evolving at radio emission.

Yuan Zunli; Wang Jiancheng, E-mail: yuanzunli@ynao.ac.cn [National Astronomical Observatories, Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011 (China)

2012-01-10T23:59:59.000Z

323

Microfracturing in Westerly granite experimentally extended wet and dry at temperatures to 800C? and pressures to 200 MPa  

E-Print Network [OSTI]

MICROFRACTURING IN WESTERLY GRANITE EXPERIMENTALLY EXTENDED WET AND DRY AT TEMPERATURES TO 800'C AND PRESSURES TO ZOO MPA A Thesis by THEODOR WILLIAM HOPKINS Submitted to the Graduate College of Texas ARM University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1986 Maj or Subject: Geology MICROFRACTURING IN WESTERLY GRANITE EXPERIMENTALLY EXTENDED WET AND DRY AT TEMPERATURES TO 800'C AND PRESSURES TO 200 MPA A Thesis by THEODOR WILLIAM HOPKINS Approved...

Hopkins, Theodor William

1986-01-01T23:59:59.000Z

324

STAR FORMATION IN THE EXTENDED GASEOUS DISK OF THE ISOLATED GALAXY CIG 96  

SciTech Connect (OSTI)

We study the Kennicutt-Schmidt star formation law and efficiency in the gaseous disk of the isolated galaxy CIG 96 (NGC 864), with special emphasis on its unusually large atomic gas (H I) disk (r{sub Hmathsci}/r{sub 25} = 3.5, r{sub 25} = 1.'85). We present deep Galaxy Evolution Explorer near- and far-UV observations, used as a recent star formation tracer, and we compare them with new, high-resolution (16''or 1.6 kpc) Very Large Array H I observations. The UV and H I maps show good spatial correlation outside the inner 1', where the H I phase dominates over H{sub 2}. Star-forming regions in the extended gaseous disk are mainly located along the enhanced H I emission within two (relatively) symmetric, giant gaseous spiral arm-like features, which emulate an H I pseudo-ring at r {approx_equal} 3'. Inside this structure, two smaller gaseous spiral arms extend from the northeast and southwest of the optical disk and connect to the previously mentioned H I pseudo-ring. Interestingly, we find that the (atomic) Kennicutt-Schmidt power-law index systematically decreases with radius, from N {approx_equal} 3.0 {+-} 0.3 in the inner disk (0.'8-1.'7) to N = 1.6 {+-} 0.5 in the outskirts of the gaseous disk (3.'3-4.'2). Although the star formation efficiency (SFE), the star formation rate per unit of gas, decreases with radius where the H I component dominates as is common in galaxies, we find that there is a break of the correlation at r = 1.5r{sub 25}. At radii 1.5r{sub 25} < r < 3.5r{sub 25}, mostly within the H I pseudo-ring structure, regions exist whose SFE remains nearly constant, SFE {approx_equal} 10{sup -11} yr{sup -1}. We discuss possible mechanisms that might be triggering the star formation in the outskirts of this galaxy, and we suggest that the constant SFE for such large radii (r > 2r{sub 25}) and at such low surface densities might be a common characteristic in extended UV disk galaxies.

Espada, D.; Sabater, J.; Verdes-Montenegro, L.; Sulentic, J. [Instituto de Astrofisica de AndalucIa, CSIC, Apdo. 3004, 18080 Granada (Spain); Munoz-Mateos, J. C.; Gil de Paz, A. [Departamento de Astrofisica y CC. de la Atmosfera, Universidad Complutense de Madrid, Avda. de la Complutense, s/n, E-28040 Madrid (Spain); Boissier, S.; Athanassoula, E.; Bosma, A. [Laboratoire d'Astrophysique de Marseille, OAMP, Universite Aix-Marseille and CNRS UMR 6110, 38 rue Frederic Joliot-Curie, 13388 Marseille Cedex 13 (France); Verley, S. [Dept. de Fisica Teorica y del Cosmos, Universidad de Granada, Granada (Spain); Leon, S. [Joint ALMA Observatory/ESO, Av. Alonso de Cordova 3107, Vitacura, Santiago (Chile); Yun, M., E-mail: daniel.espada@nao.ac.jp, E-mail: despada@cfa.harvard.edu [Department of Astronomy, University of Massachusetts, Amherst, MA 01003 (United States)

2011-07-20T23:59:59.000Z

325

Lack of correlation between extended pH monitoring and scintigraphy in the evaluation of infants with gastroesophageal reflux  

SciTech Connect (OSTI)

Sixty-nine infants younger than 1 year of age, with symptoms of persistent vomiting, recurrent choking, apnea, persistent cough, or stridor, were evaluated for gastroesophageal reflux. All infants underwent extended intraesophageal pH monitoring for 16 to 24 hours as well as gastroesophageal scintigraphy with technetium 99m sulfur colloid to study the correlation between the two tests. Forty-eight infants exhibited reflux with extended pH monitoring whereas 46 infants showed reflux with scintigraphy. However, the diagnosis of reflux in individual patients by extended pH monitoring corresponded poorly with the diagnosis of reflux in the same patients by scintigraphy. Similarly, no correlation was observed between extended pH monitoring and scintigraphy results, whether expressed as percent gastric emptying or as gastroesophageal reflux ratio. We conclude that extended pH monitoring and scintigraphy measure different pathophysiologic phenomena and detect reflux under different conditions. The ability of these tests to detect reflux may be complementary and they may be of greatest value when used together to enhance the sensitivity and specificity of the diagnostic evaluation. Extended pH monitoring and scintigraphy should not be used interchangeably to monitor gastroesophageal reflux.

Tolia, V.; Calhoun, J.A.; Kuhns, L.R.; Kauffman, R.E. (Wayne State Univ., Detroit, MI (USA))

1990-05-01T23:59:59.000Z

326

Will boson-sampling ever disprove the Extended Church-Turing thesis?  

E-Print Network [OSTI]

Boson-sampling is a highly simplified, but non-universal, approach to implementing optical quantum computation. It was shown by Aaronson and Arkhipov that this protocol cannot be efficiently classically simulated unless the polynomial hierarchy collapses, which would be a shocking result in computational complexity theory. Based on this, numerous authors have made the claim that experimental boson-sampling would provide evidence against, or disprove, the Extended Church-Turing thesis -- that any physically realisable system can be efficiently simulated on a Turing machine. We argue against this claim on the basis that, under a general, physically realistic independent error model, boson-sampling does not implement a provably hard computational problem in the asymptotic limit of large systems.

Peter P. Rohde; Keith R. Motes; Paul A. Knott; William J. Munro

2014-05-26T23:59:59.000Z

327

Extended Lagrangian quantum molecular dynamics simulations of shock-induced chemistry in hydrocarbons  

SciTech Connect (OSTI)

A set of interatomic potentials for hydrocarbons that are based upon the self-consistent charge transfer tight-binding approximation to density functional theory have been developed and implemented into the quantum molecular dynamics code ''LATTE''. The interatomic potentials exhibit an outstanding level of transferability and have been applied in molecular dynamics simulations of tert-butylacetylene under thermodynamic conditions that correspond to its single-shock Hugoniot. We have achieved precise conservation of the total energy during microcanonical molecular dynamics trajectories under incomplete convergence via the extended Lagrangian Born-Oppenheimer molecular dynamics formalism. In good agreement with the results of a series of flyer-plate impact experiments, our SCC-TB molecular dynamics simulations show that tert-butylactylene molecules polymerize at shock pressures around 6.1 GPa.

Sanville, Edward J [Los Alamos National Laboratory; Bock, Nicolas [Los Alamos National Laboratory; Challacombe, William M [Los Alamos National Laboratory; Cawkwell, Marc J [Los Alamos National Laboratory; Niklasson, Anders M N [Los Alamos National Laboratory; Dattelbaum, Dana M [Los Alamos National Laboratory; Sheffield, Stephen [Los Alamos National Laboratory; Sewell, Thomas D [UNIV OF MISSOURI

2010-01-01T23:59:59.000Z

328

Temporal structure of aggregate power fluctuations in large-eddy simulations of extended wind-farms  

E-Print Network [OSTI]

Fluctuations represent a major challenge for the incorporation of electric power from large wind-farms into power grids. Wind farm power output fluctuates strongly in time, over various time scales. Understanding these fluctuations, especially their spatio-temporal characteristics, is particularly important for the design of backup power systems that must be readily available in conjunction with wind-farms. In this work we analyze the power fluctuations associated with the wind-input variability at scales between minutes to several hours, using large eddy simulations (LES) of extended wind-parks, interacting with the atmospheric boundary layer. LES studies enable careful control of parameters and availability of wind-velocities simultaneously across the entire wind-farm. The present study focuses on neutral atmospheric conditions and flat terrain, using actuator-disk representations of the individual wind-turbines. We consider power from various aggregates of wind-turbines such as the total average power sign...

Stevens, Richard J A M

2014-01-01T23:59:59.000Z

329

Extended Mller-Plesset perturbation theory for dynamical and static correlations  

SciTech Connect (OSTI)

We present a novel method that appropriately handles both dynamical and static electron correlations in a balanced manner, using a perturbation theory on a spin-extended Hartree-Fock (EHF) wave function reference. While EHF is a suitable candidate for degenerate systems where static correlation is ubiquitous, it is known that most of dynamical correlation is neglected in EHF. In this work, we derive a perturbative correction to a fully spin-projected self-consistent wave function based on second-order Mller-Plesset perturbation theory (MP2). The proposed method efficiently captures the ability of EHF to describe static correlation in degeneracy, combined with MP2's ability to treat dynamical correlation effects. We demonstrate drastic improvements on molecular ground state and excited state potential energy curves and singlet-triplet splitting energies over both EHF and MP2 with similar computational effort to the latter.

Tsuchimochi, Takashi, E-mail: tsuchimochi@mit.edu; Van Voorhis, Troy [Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, Massachusetts 02139 (United States)

2014-10-28T23:59:59.000Z

330

Eighth workshop on crystalline silicon solar cell materials and processes: Extended abstracts and papers  

SciTech Connect (OSTI)

The theme of this workshop is Supporting the Transition to World Class Manufacturing. This workshop provides a forum for an informal exchange of information between researchers in the photovoltaic and non-photovoltaic fields on various aspects of impurities and defects in silicon, their dynamics during device processing, and their application in defect engineering. This interaction helps establish a knowledge base that can be used for improving device fabrication processes to enhance solar-cell performance and reduce cell costs. It also provides an excellent opportunity for researchers from industry and universities to recognize mutual needs for future joint research. The workshop format features invited review presentations, panel discussions, and two poster sessions. The poster sessions create an opportunity for both university and industrial researchers to present their latest results and provide a natural forum for extended discussions and technical exchanges.

NONE

1998-08-01T23:59:59.000Z

331

Method using CO for extending the useful shelf-life of refrigerated red blood cells  

DOE Patents [OSTI]

A method is disclosed using CO for extending the useful shelf-life of refrigerated red blood cells. Carbon monoxide is utilized for stabilizing hemoglobin in red blood cells to be stored at low temperature. Changes observed in the stored cells are similar to those found in normal red cell aging in the body, the extent thereof being directly related to the duration of refrigerated storage. Changes in cell buoyant density, vesiculation, and the tendency of stored cells to bind autologous IgG antibody directed against polymerized band 3 IgG, all of which are related to red blood cell senescence and increase with refrigerated storage time, have been substantially slowed when red blood cells are treated with CO. Removal of the carbon monoxide from the red blood cells is readily and efficiently accomplished by photolysis in the presence of oxygen so that the stored red blood cells may be safely transfused into a recipient. 5 figs.

Bitensky, M.W.

1995-12-19T23:59:59.000Z

332

Method using CO for extending the useful shelf-life of refrigerated red blood cells  

DOE Patents [OSTI]

Method using CO for extending the useful shelf-life of refrigerated red blood cells. Carbon monoxide is utilized for stabilizing hemoglobin in red blood cells to be stored at low temperature. Changes observed in the stored cells are similar to those found in normal red cell aging in the body, the extent thereof being directly related to the duration of refrigerated storage. Changes in cell buoyant density, vesiculation, and the tendency of stored cells to bind autologous IgG antibody directed against polymerized band 3 IgG, all of which are related to red blood cell senescence and increase with refrigerated storage time, have been substantially slowed when red blood cells are treated with CO. Removal of the carbon monoxide from the red blood cells is readily and efficiently accomplished by photolysis in the presence of oxygen so that the stored red blood cells may be safely transfused into a recipient.

Bitensky, Mark W. (Los Alamos, NM)

1995-01-01T23:59:59.000Z

333

X-ray imaging crystal spectrometer for extended X-ray sources  

DOE Patents [OSTI]

Spherically or toroidally curved, double focusing crystals are used in a spectrometer for X-ray diagnostics of an extended X-ray source such as a hot plasma produced in a tokomak fusion experiment to provide spatially and temporally resolved data on plasma parameters using the imaging properties for Bragg angles near 45. For a Bragg angle of 45.degree., the spherical crystal focuses a bundle of near parallel X-rays (the cross section of which is determined by the cross section of the crystal) from the plasma to a point on a detector, with parallel rays inclined to the main plain of diffraction focused to different points on the detector. Thus, it is possible to radially image the plasma X-ray emission in different wavelengths simultaneously with a single crystal.

Bitter, Manfred L. (Princeton, NJ); Fraenkel, Ben (Jerusalem, IL); Gorman, James L. (Bordentown, NJ); Hill, Kenneth W. (Lawrenceville, NJ); Roquemore, A. Lane (Cranbury, NJ); Stodiek, Wolfgang (Princeton, NJ); von Goeler, Schweickhard E. (Princeton, NJ)

2001-01-01T23:59:59.000Z

334

On a non approximated approach to Extended Thermodynamics for dense gases and macromolecular fluids  

E-Print Network [OSTI]

Recently the 14 moments model of Extended Thermodynamics for dense gases and macromolecular fluids has been considered and an exact solution, of the restrictions imposed by the entropy principle and that of Galilean relativity, has been obtained through a non relativistic limit. Here we prove uniqueness of the above solution and exploit other pertinent conditions such us the convexity of the function $h'$ related to the entropy density, the problem of subsystems and the fact that the flux in the conservation law of mass must be the moment of order 1 in the conservation law of momentum. Also the solution of this last condition is here obtained without using expansions around equilibrium. The results present interesting aspects which were not suspected when only approximated solutions of this problem were known.

M. C. Carrisi; M. A. Mele; S. Pennisi

2007-12-21T23:59:59.000Z

335

Grounds for Quantum Geometrodynamics in an extended phase space and its cosmological consequences  

E-Print Network [OSTI]

Quantum geometrodynamics (QGD) in extended phase space essentially distinguished from the Wheeler - DeWitt QGD is proposed. The grounds for constructing a new version of quantum geometrodynamics are briefly discussed. The main part in the proposed version of QGD is given to the Schrodinger equation for a wave function of the Universe. The Schrodinger equation carries information about a chosen gauge condition which fixes a reference system. The reference system is represented by a continual medium that can be called ``the gravitational vacuum condencate". A solution to the Schrodinger equation contains information about the integrated system ``a physical object + observation means (the gravitational vacuum condensate)". It may be demonstrated that the gravitational vacuum condensate appears to be a cosmological evolution factor.

T. P. Shestakova

2000-06-29T23:59:59.000Z

336

The prospects for extended phase space approach to quantization of gravity  

E-Print Network [OSTI]

A brief review of main features of the new approach named ``quantum geometrodynamics in extended phase space'' is given and its possible prospects are discussed. Gauge degrees of freedom are treated as a subsystem of the Universe which affects the evolution of the physical subsystem. Three points can be singled out when the gauge subsystem shows itself as a real constituent of the Universe: a chosen gauge condition determines the form of equation for the physical part of wave function, the form of density matrix and the measure in physical subspace. An example is considered when a physically relevant choice of gauge condition leads to almost diagonal density matrix. The analogy between a transition to another reference frame (another basis in physical subspace) and a transition to accelerating reference frame in Rindler space is suggested.

T. P. Shestakova

2004-12-17T23:59:59.000Z

337

Entanglement monogamy of multipartite higher-dimensional quantum systems using convex-roof extended negativity  

E-Print Network [OSTI]

We propose replacing concurrence by convex-roof extended negativity (CREN) for studying monogamy of entanglement (MoE). We show that all proven MoE relations using concurrence can be rephrased in terms of CREN. Furthermore we show that higher-dimensional (qudit) extensions of MoE in terms of CREN are not disproven by any of the counterexamples used to disprove qudit extensions of MoE in terms of concurrence. We further test the CREN version of MoE for qudits by considering fully or partially coherent mixtures of a qudit W-class state with the vacuum and show that the CREN version of MoE for qudits is satisfied in this case as well. The CREN version of MoE for qudits is thus a strong conjecture with no obvious counterexamples.

Jeong San Kim; Anirban Das; Barry C. Sanders

2008-11-13T23:59:59.000Z

338

Control of unstable steady states by extended time-delayed feedback  

E-Print Network [OSTI]

Time-delayed feedback methods can be used to control unstable periodic orbits as well as unstable steady states. We present an application of extended time delay autosynchronization introduced by Socolar et al. to an unstable focus. This system represents a generic model of an unstable steady state which can be found for instance in a Hopf bifurcation. In addition to the original controller design, we investigate effects of control loop latency and a bandpass filter on the domain of control. Furthermore, we consider coupling of the control force to the system via a rotational coupling matrix parametrized by a variable phase. We present an analysis of the domain of control and support our results by numerical calculations.

Thomas Dahms; Philipp Hoevel; Eckehard Schoell

2007-08-01T23:59:59.000Z

339

Extending LHC Coverage to Light Pseudoscalar Mediators and Coy Dark Sectors  

E-Print Network [OSTI]

Many dark matter models involving weakly interacting massive particles (WIMPs) feature new, relatively light pseudoscalars that mediate dark matter pair annihilation into Standard Model fermions. In particular, simple models of this type can explain the gamma ray excess originating in the Galactic Center as observed by the Fermi Large Area Telescope. In many cases the pseudoscalar's branching ratio into WIMPs is suppressed, making these states challenging to detect at colliders through standard dark matter searches. Here, we study the prospects for observing these light mediator states at the LHC without exploiting missing energy techniques. While existing searches effectively probe pseudoscalars with masses between 5 - 14 GeV and above 90 GeV, the LHC reach can be extended to cover much of the interesting parameter space in the intermediate 20 - 80 GeV mass range in which the mediator can have appreciable Yukawa-like couplings to Standard Model fermions but would have escaped detection by LEP and other exper...

Kozaczuk, Jonathan

2015-01-01T23:59:59.000Z

340

Spatially extended void-free dusty plasmas in a laboratory radio-frequency discharge  

SciTech Connect (OSTI)

Laboratory experiments with thermophoretic levitation of dust are described that aim at the closure of a central dust-free void region. A careful study of the void structure as a function of the discharge and levitation parameters leads to the discovery of an extended parameter region where stable void-free equilibria are found. The void closure is effected by a novel mechanism that involves a self-organized change in the discharge topology, in which the dust cloud becomes surrounded by a toroidal region of plasma production. In this geometry ions are found to stream radially inwards instead of outwards as in clouds with a central void. This change in ion flow is proved by a reversal of the propagation direction of dust-density waves.

Schmidt, C.; Arp, O.; Piel, A. [IEAP, Christian-Albrechts-Universitaet Kiel, D-24098 Kiel (Germany)

2011-01-15T23:59:59.000Z

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341

ATLBS EXTENDED SOURCE SAMPLE: THE EVOLUTION IN RADIO SOURCE MORPHOLOGY WITH FLUX DENSITY  

SciTech Connect (OSTI)

Based on the Australia Telescope Low Brightness Survey (ATLBS) we present a sample of extended radio sources and derive morphological properties of faint radio sources. One hundred nineteen radio galaxies form the ATLBS Extended Source Sample (ATLBS-ESS) consisting of all sources exceeding 30'' in extent and integrated flux densities exceeding 1 mJy. We give structural details along with information on galaxy identifications and source classifications. The ATLBS-ESS, unlike samples with higher flux-density limits, has almost equal fractions of FR-I and FR-II radio galaxies, with a large fraction of the FR-I population exhibiting 3C31-type structures. Significant asymmetry in lobe extents appears to be a common occurrence in the ATLBS-ESS FR-I sources compared with FR-II sources. We present a sample of 22 FR-Is at z > 0.5 with good structural information. The detection of several giant radio sources, with size exceeding 0.7 Mpc, at z > 1 suggests that giant radio sources are not less common at high redshifts. The ESS also includes a sample of 28 restarted radio galaxies. The relative abundance of dying and restarting sources is indicative of a model where radio sources undergo episodic activity in which an active phase is followed by a brief dying phase that terminates with restarting of the central activity; in any massive elliptical a few such activity cycles wherein adjacent events blend may constitute the lifetime of a radio source and such bursts of blended activity cycles may be repeated over the age of the host. The ATLBS-ESS includes a 2 Mpc giant radio galaxy with the lowest surface brightness lobes known to date.

Saripalli, L.; Subrahmanyan, R.; Thorat, K.; Ekers, R. D. [Raman Research Institute, C. V. Raman Avenue, Sadashivanagar, Bangalore 560080 (India); Hunstead, R. W.; Johnston, H. M.; Sadler, E. M., E-mail: lsaripal@rri.res.in [Sydney Institute for Astronomy, School of Physics, University of Sydney, NSW 2006 (Australia)

2012-04-01T23:59:59.000Z

342

NRC Technical Research Program to Evaluate Extended Storage and Transportation of Spent Nuclear Fuel - 12547  

SciTech Connect (OSTI)

Any new direction proposed for the back-end of spent nuclear fuel (SNF) cycle will require storage of SNF beyond the current licensing periods. The Nuclear Regulatory Commission (NRC) has established a technical research program to determine if any changes in the 10 CFR part 71, and 72 requirements, and associated guidance might be necessary to regulate the safety of anticipated extended storage, and subsequent transport of SNF. This three part program of: 1) analysis of knowledge gaps in the potential degradation of materials, 2) short-term research and modeling, and 3) long-term demonstration of systems, will allow the NRC to make informed regulatory changes, and determine when and if additional monitoring and inspection of the systems is necessary. The NRC has started a research program to obtain data necessary to determine if the current regulatory guidance is sufficient if interim dry storage has to be extended beyond the currently approved licensing periods. The three-phased approach consists of: - the identification and prioritization of potential degradation of the components related to the safe operation of a dry cask storage system, - short-term research to determine if the initial analysis was correct, and - a long-term prototypic demonstration project to confirm the models and results obtained in the short-term research. The gap analysis has identified issues with the SCC of the stainless steel canisters, and SNF behavior. Issues impacting the SNF and canister internal performance such as high and low temperature distributions, and drying have also been identified. Research to evaluate these issues is underway. Evaluations have been conducted to determine the relative values that various types of long-term demonstration projects might provide. These projects or follow-on work is expected to continue over the next five years. (authors)

Einziger, R.E.; Compton, K.; Gordon, M.; Ahn, T.; Gonzales, H. [United States Nuclear Regulatory Commission, Rockville, Maryland 20852 (United States); Pan, Y. [Center for Nuclear Waste Regulatory Analyses, San Antonio, TX 78238 (United States)

2012-07-01T23:59:59.000Z

343

From Ultracompact to Extended HII Regions. II: Cloud Gravity and Stellar Motion  

E-Print Network [OSTI]

The dynamical evolution of HII regions with and without stellar motion in dense, structured molecular clouds is studied. Clouds are modeled in hydrostatic equilibrium, with gaussian central cores and external halos that obey r**-2 and r**-3 density power laws. The cloud gravity is included as a time-independent, external force. Stellar velocities of 0, 2, 8, and 12 km/s are considered. When stellar motion is included, stars move from the central core to the edge of the cloud, producing transitions from ultracompact to extended HII regions as the stars move into lower density regions. The opposite behavior occurs when stars move toward the cloud cores. The main conclusion of our study is that ultracompact HII regions are pressure-confined entities while they remain embedded within dense cores. The confinement comes from ram and/or ambient pressures. The survival of ultracompact regions depends on the position of the star with respect to the core, the stellar life-time, and the core crossing time. Stars with velocities less than the cloud dispersion velocity can produce cometary shapes smaller than 0.1 pc at times of 20,000 yr or more. The sequence Ultracompact to Compact to Extended HII region shows a variety of unpredictable structures due to ionization-shock front instability. Some ultracompact HII regions with a core-halo morphology might be explained by self-blocking effects, when stars overtake and ionize leading, piled-up clumps of neutral gas. We use thermal energy to support the cloud against gravity; the results remain the same if other types of isotropic cloud support are used.

Jose Franco; Guillermo Garcia-Segura; Stan Kurtz

2005-08-22T23:59:59.000Z

344

New observations of the extended hydrogen exosphere of the extrasolar planet HD209458b  

E-Print Network [OSTI]

Atomic hydrogen escaping from the planet HD209458b provides the largest observational signature ever detected for an extrasolar planet atmosphere. However, the Space Telescope Imaging Spectrograph (STIS) used in previous observational studies is no longer available, whereas additional observations are still needed to better constrain the mechanisms subtending the evaporation process, and determine the evaporation state of other `hot Jupiters'. Here, we aim to detect the extended hydrogen exosphere of HD209458b with the Advanced Camera for Surveys (ACS) on board the Hubble Space Telescope (HST) and to find evidence for a hydrogen comet-like tail trailing the planet, which size would depend on the escape rate and the amount of ionizing radiation emitted by the star. These observations also provide a benchmark for other transiting planets, in the frame of a comparative study of the evaporation state of close-in giant planets. Eight HST orbits are used to observe two transits of HD209458b. Transit light curves are obtained by performing photometry of the unresolved stellar Lyman-alpha emission line during both transits. Absorption signatures of exospheric hydrogen during the transit are compared to light curve models predicting a hydrogen tail. Transit depths of (9.6 +/- 7.0)% and (5.3 +/- 10.0)% are measured on the whole Lyman-alpha line in visits 1 and 2, respectively. Averaging data from both visits, we find an absorption depth of (8.0 +/- 5.7)%, in good agreement with previous studies. The extended size of the exosphere confirms that the planet is likely loosing hydrogen to space. Yet, the photometric precision achieved does not allow us to better constrain the hydrogen mass loss rate.

David Ehrenreich; Alain Lecavelier des Etangs; Guillaume Hbrard; Jean-Michel Dsert; Alfred Vidal-Madjar; John C. McConnell; Christopher D. Parkinson; Gilda E. Ballester

2008-03-12T23:59:59.000Z

345

Ab Initio Molecular Dynamics Bull. Korean Chem. Soc. 2003, Vol. 24, No. 6 1 Ab Initio Molecular Dynamics with Born-Oppenheimer and Extended  

E-Print Network [OSTI]

Dynamics with Born-Oppenheimer and Extended Lagrangian Methods Using Atom Centered Basis Functions H calculations. For Born-Oppenheimer methods, the electronic structure calculations are converged, whereas trajectory calculations, Born-Oppenheimer dynamics, Extended Lagrangian dynamics, ADMP Introduction

Schlegel, H. Bernhard

346

Objective 1: Extend Life, Improve Performance, and Maintain Safety of the Current Fleet Implementation Plan  

SciTech Connect (OSTI)

Nuclear power has reliably and economically contributed almost 20% of electrical generation in the United States over the past two decades. It remains the single largest contributor (more than 70%) of non-greenhouse-gas-emitting electric power generation in the United States. By the year 2030, domestic demand for electrical energy is expected to grow to levels of 16 to 36% higher than 2007 levels. At the same time, most currently operating nuclear power plants will begin reaching the end of their 60 year operating licenses. Figure E 1 shows projected nuclear energy contribution to the domestic generating capacity. If current operating nuclear power plants do not operate beyond 60 years, the total fraction of generated electrical energy from nuclear power will begin to declineeven with the expected addition of new nuclear generating capacity. The oldest commercial plants in the United States reached their 40th anniversary in 2009. The U.S. Department of Energy Office of Nuclear Energys Research and Development (R&D) Roadmap has organized its activities in accordance with four objectives that ensure nuclear energy remains a compelling and viable energy option for the United States. The objectives are as follows: (1) develop technologies and other solutions that can improve the reliability, sustain the safety, and extend the life of the current reactors; (2) develop improvements in the affordability of new reactors to enable nuclear energy to help meet the Administrations energy security and climate change goals; (3) develop sustainable nuclear fuel cycles; and (4) understand and minimize risks of nuclear proliferation and terrorism. The Light Water Reactor Sustainability (LWRS) Program is the primary programmatic activity that addresses Objective 1. This document describes how Objective 1 and the LWRS Program will be implemented. The existing U.S. nuclear fleet has a remarkable safety and performance record and today accounts for 70% of the low greenhouse gas emitting domestic electricity production. Extending the operating lifetimes of current plants beyond 60 years and, where possible, making further improvements in their productivity will generate early benefits from research, development, and demonstration investments in nuclear power. DOEs role in Objective 1 is to partner with industry and the Nuclear Regulatory Commission in appropriate ways to support and conduct the long-term research needed to inform major component refurbishment and replacement strategies, performance enhancements, plant license extensions, and age-related regulatory oversight decisions. The DOE research, development, and demonstration role will focus on aging phenomena and issues that require long-term research and are generic to reactor type. Cost-shared demonstration activities will be conducted when appropriate.

Robert Youngblood

2011-01-01T23:59:59.000Z

347

ESBWR response to an extended station blackout/loss of all AC power  

SciTech Connect (OSTI)

U.S. federal regulations require light water cooled nuclear power plants to cope with Station Blackouts for a predetermined amount of time based on design factors for the plant. U.S. regulations define Station Blackout (SBO) as a loss of the offsite electric power system concurrent with turbine trip and unavailability of the onsite emergency AC power system. According to U.S. regulations, typically the coping period for an SBO is 4 hours and can be as long as 16 hours for currently operating BWR plants. Being able to cope with an SBO and loss of all AC power is required by international regulators as well. The U.S. licensing basis for the ESBWR is a coping period of 72 hours for an SBO based on U.S. NRC requirements for passive safety plants. In the event of an extended SBO (viz., greater than 72 hours), the ESBWR response shows that the design is able to cope with the event for at least 7 days without AC electrical power or operator action. ESBWR is a Generation III+ reactor design with an array of passive safety systems. The ESBWR primary success path for mitigation of an SBO event is the Isolation Condenser System (ICS). The ICS is a passive, closed loop, safety system that initiates automatically on a loss of power. Upon Station Blackout or loss of all AC power, the ICS begins removing decay heat from the Reactor Pressure Vessel (RPV) by (i) condensing the steam into water in heat exchangers located in pools of water above the containment, and (ii) transferring the decay heat to the atmosphere. The condensed water is then returned by gravity to cool the reactor again. The ICS alone is capable of maintaining the ESBWR in a safe shutdown condition after an SBO for an extended period. The fuel remains covered throughout the SBO event. The ICS is able to remove decay heat from the RPV for at least 7 days and maintains the reactor in a safe shutdown condition. The water level in the RPV remains well above the top of active fuel for the duration of the SBO event. Beyond 7 days, only a few simple actions are needed to cope with the SBO for an indefinite amount of time. The operation of the ICS as the primary success path for mitigation of an SBO, allows for near immediate plant restart once power is restored. (authors)

Barrett, A. J.; Marquino, W. [New Plants Engineering, GE Hitachi Nuclear Energy, M/CA 75, 3901 Castle Hayne Road, Wilmington, NC 28402 (United States)

2012-07-01T23:59:59.000Z

348

Steady-State Homogeneous Nucleation and Growth of Water Droplets: Extended Numerical Treatment  

E-Print Network [OSTI]

The steady-state homogeneous vapor-to-liquid nucleation and the succeeding liquid droplet growth process are studied for water system by means of the coarse-grained molecular dynamics simulations with the mW-model suggested originally in [Molinero, V.; Moore, E. B. \\textit{J. Phys. Chem. B} \\textbf{2009}, \\textit{113}, 4008-4016]. The investigation covers the temperature range $273 \\leq T/K \\leq 363$ and the system's pressure $p\\simeq 1$ atm. The thermodynamic integration scheme and the extended mean first passage time method as a tool to find the nucleation and cluster growth characteristics are applied. The surface tension is numerically estimated and is compared with the experimental data for the considered temperature range. We extract the nucleation characteristics such as the steady-state nucleation rate, the critical cluster size, the nucleation barrier, the Zeldovich factor; perform the comparison with the other simulation results and test the treatment of the simulation results within the classical nucleation theory. We found that the liquid droplet growth is unsteady and follows the power law. At that, the growth laws exhibit the features unified for all the considered temperatures. The geometry of the nucleated droplets is also studied.

Anatolii V. Mokshin; Bulat N. Galimzyanov

2012-10-02T23:59:59.000Z

349

Steady-State Homogeneous Nucleation and Growth of Water Droplets: Extended Numerical Treatment  

E-Print Network [OSTI]

The steady-state homogeneous vapor-to-liquid nucleation and the succeeding liquid droplet growth process are studied for water system by means of the coarse-grained molecular dynamics simulations with the mW-model suggested originally in [Molinero, V.; Moore, E. B. \\textit{J. Phys. Chem. B} \\textbf{2009}, \\textit{113}, 4008-4016]. The investigation covers the temperature range $273 \\leq T/K \\leq 363$ and the system's pressure $p\\simeq 1$ atm. The thermodynamic integration scheme and the extended mean first passage time method as a tool to find the nucleation and cluster growth characteristics are applied. The surface tension is numerically estimated and is compared with the experimental data for the considered temperature range. We extract the nucleation characteristics such as the steady-state nucleation rate, the critical cluster size, the nucleation barrier, the Zeldovich factor; perform the comparison with the other simulation results and test the treatment of the simulation results within the classical n...

Mokshin, Anatolii V; 10.1021/jp304830e

2012-01-01T23:59:59.000Z

350

NEW EXTENDED DEUTERIUM FRACTIONATION MODEL: ASSESSMENT AT DENSE ISM CONDITIONS AND SENSITIVITY ANALYSIS  

SciTech Connect (OSTI)

Observations of deuterated species are useful in probing the temperature, ionization level, evolutionary stage, chemistry, and thermal history of astrophysical environments. The analysis of data from the Atacama Large Millimeter Array and other new telescopes requires an elaborate model of deuterium fractionation. This paper presents a publicly available chemical network with multi-deuterated species and an extended, up-to-date set of gas-phase and surface reactions. To test this network, we simulate deuterium fractionation in diverse interstellar sources. Two cases of initial abundances are considered: (1) atomic except for H{sub 2} and HD, and (2) molecular from a prestellar core. We reproduce the observed D/H ratios of many deuterated molecules, and sort the species according to their sensitivity to temperature gradients and initial abundances. We find that many multiply deuterated species produced at 10 K retain enhanced D/H ratios at temperatures {approx}< 100 K. We study how recent updates to reaction rates affect calculated D/H ratios, and perform a detailed sensitivity analysis of the uncertainties of the gas-phase reaction rates in the network. We find that uncertainties are generally lower in dark cloud environments than in warm infrared dark clouds and that uncertainties increase with the size of the molecule and number of D-atoms. A set of the most problematic reactions is presented. We list potentially observable deuterated species predicted to be abundant in low- and high-mass star-formation regions.

Albertsson, T.; Semenov, D. A.; Henning, Th. [Max-Planck-Institut fuer Astronomie, Koenigstuhl 17, D-69117 Heidelberg (Germany); Vasyunin, A. I.; Herbst, E. [Departments of Chemistry and Astronomy, University of Virginia, Charlottesville, VA 22904 (United States)

2013-08-15T23:59:59.000Z

351

Investigation of ISIS and Brookhaven National Laboratory ion source electrodes after extended operation  

SciTech Connect (OSTI)

Linac4 accelerator of Centre Europeen de Recherches Nucleaires is under construction and a RF-driven H{sup -} ion source is being developed. The beam current requirement for Linac4 is very challenging: 80 mA must be provided. Cesiated plasma discharge ion sources such as Penning or magnetron sources are also potential candidates. Accelerator ion sources must achieve typical reliability figures of 95% and above. Investigating and understanding the underlying mechanisms involved with source failure or ageing is critical when selecting the ion source technology. Plasma discharge driven surface ion sources rely on molybdenum cathodes. Deformation of the cathode surfaces is visible after extended operation periods. A metallurgical investigation of an ISIS ion source is presented. The origin of the deformation is twofold: Molybdenum sputtering by cesium ions digs few tenths of mm cavities while a growth of molybdenum is observed in the immediate vicinity. The molybdenum growth under hydrogen atmosphere is hard and loosely bound to the bulk. It is, therefore, likely to peel off and be transported within the plasma volume. The observation of the cathode, anode, and extraction electrodes of the magnetron source operated at BNL for two years are presented. A beam simulation of H{sup -}, electrons, and Cs{sup -} ions was performed with the IBSimu code package to qualitatively explain the observations. This paper describes the operation conditions of the ion sources and discusses the metallurgical analysis and beam simulation results.

Lettry, J.; Gerardin, A.; Pereira, H.; Sgobba, S. [CERN, 1211 Geneva 23 (Switzerland); Alessi, J. [BNL, P.O. Box 5000, Upton, New York 11973-5000 (United States); Faircloth, D. [RAL, Harwell Oxford, Didcot OX11 0QX (United Kingdom); Kalvas, T. [University of Jyvaskyla, P.O.Box 35, FI-40014 (Finland)

2012-02-15T23:59:59.000Z

352

Investigation of ISIS and Brookhaven National Laboratory ion source electrodes after extended operation  

SciTech Connect (OSTI)

Linac4 accelerator of Centre Europeen de Recherches Nucleaires is under construction and a RF-driven H{sup -} ion source is being developed. The beam current requirement for Linac4 is very challenging: 80 mA must be provided. Cesiated plasma discharge ion sources such as Penning or magnetron sources are also potential candidates. Accelerator ion sources must achieve typical reliability figures of 95% and above. Investigating and understanding the underlying mechanisms involved with source failure or ageing is critical when selecting the ion source technology. Plasma discharge driven surface ion sources rely on molybdenum cathodes. Deformation of the cathode surfaces is visible after extended operation periods. A metallurgical investigation of an ISIS ion source is presented. The origin of the deformation is twofold: Molybdenum sputtering by cesium ions digs few tenths of mm cavities while a growth of molybdenum is observed in the immediate vicinity. The molybdenum growth under hydrogen atmosphere is hard and loosely bound to the bulk. It is, therefore, likely to peel off and be transported within the plasma volume. The observation of the cathode, anode, and extraction electrodes of the magnetron source operated at BNL for two years are presented. A beam simulation of H{sup -}, electrons, and Cs{sup -} ions was performed with the IBSimu code package to qualitatively explain the observations. This paper describes the operation conditions of the ion sources and discusses the metallurgical analysis and beam simulation results.

Lettry J.; Alessi J.; Faircloth, D.; Gerardin, A.; Kalvas, T.; Pereira, H.; Sgobba, S.

2012-02-23T23:59:59.000Z

353

Interplay between MacDonald and Hall-Littlewood expansions of extended torus superpolynomials  

E-Print Network [OSTI]

In arXiv:1106.4305 extended superpolynomials were introduced for the torus links T[m,mk+r], which are functions on the entire space of time variables and, at expense of reducing the topological invariance, possess additional algebraic properties, resembling those of the matrix model partition functions and the KP/Toda tau-functions. Not surprisingly, being a suitable extension it actually allows one to calculate the superpolynomials. These functions are defined as expansions into MacDonald polynomials, and their dependence on k is entirely captured by the action of the cut-and-join operator, like in the HOMFLY case. We suggest a simple description of the coefficients in these character expansions, by expanding the initial (at k=0) conditions for the k-evolution into the new auxiliary basis, this time provided by the Hall-Littlewood polynomials, which, hence, play a role in the description of the dual m-evolution. For illustration we list manifest expressions for a few first series, mk\\pm 1, mk\\pm 2, mk\\pm 3, mk\\pm 4. Actually all formulas were explicitly tested up to m=17 strands in the braid.

A. Mironov; A. Morozov; Sh. Shakirov; A. Sleptsov

2012-02-17T23:59:59.000Z

354

Continuous data assimilation for the three-dimensional Brinkman-Forchheimer-extended Darcy model  

E-Print Network [OSTI]

In this paper we introduce and analyze an algorithm for continuous data assimilation for a three-dimensional Brinkman-Forchheimer-extended Darcy (3D BFeD) model of porous media. This model is believed to be accurate when the flow velocity is too large for Darcy's law to be valid, and additionally the porosity is not too small. The algorithm is inspired by ideas developed for designing finite-parameters feedback control for dissipative systems. It aims to obtaining improved estimates of the state of the physical system by incorporating deterministic or noisy measurements and observations. Specifically, the algorithm involves a feedback control that nudges the large scales of the approximate solution toward those of the reference solution associated with the spatial measurements. In the first part of the paper, we present few results of existence and uniqueness of weak and strong solutions of the 3D BFeD system. The second part is devoted to the setting and convergence analysis of the data assimilation algorith...

Markowich, Peter A; Trabelsi, Saber

2015-01-01T23:59:59.000Z

355

High Sensitivity Combined with Extended Structural Coverage of Labile Compounds via Nanoelectrospray Ionization at Subambient Pressures  

SciTech Connect (OSTI)

Subambient pressure ionization with nanoelectrospray (SPIN) has proven to be effective in producing ions with high efficiency and transmitting them to low pressures for high sensitivity mass spectrometry (MS) analysis. Here we present evidence that not only does the SPIN source improve MS sensitivity but also allows for gentler ionization conditions. The gentleness of a conventional heated capillary electrospray ionization (ESI) source and the SPIN source was compared by the liquid chromatography mass spectrometry (LC-MS) analysis of colominic acid. Colominic acid is a mixture of sialic acid polymers of different lengths containing labile glycosidic linkages between monomer units necessitating a gentle ion source. By coupling the SPIN source with high resolution mass spectrometry and using advanced data processing tools, we demonstrate much extended coverage of sialic acid polymer chains as compared to using the conventional ESI source. Additionally we show that SPIN-LC-MS is effective in elucidating polymer features with high efficiency and high sensitivity previously unattainable by the conventional ESI-LC-MS methods. ?

Cox, Jonathan T.; Kronewitter, Scott R.; Shukla, Anil K.; Moore, Ronald J.; Smith, Richard D.; Tang, Keqi

2014-10-07T23:59:59.000Z

356

Alfvenic Turbulence in the Extended Solar Corona: Kinetic Effects and Proton Heating  

E-Print Network [OSTI]

We present a model of magnetohydrodynamic (MHD) turbulence in the extended solar corona that contains the effects of collisionless dissipation and anisotropic particle heating. Measurements made by UVCS/SOHO have revived interest in the idea that ions are energized by the dissipation of ion cyclotron resonant waves, but such high-frequency (i.e., small wavelength) fluctuations have not been observed. A turbulent cascade is one possible way of generating small-scale fluctuations from a pre-existing population of low-frequency MHD waves. We model this cascade as a combination of advection and diffusion in wavenumber space. The dominant spectral transfer occurs in the direction perpendicular to the background magnetic field. As expected from earlier models, this leads to a highly anisotropic fluctuation spectrum with a rapidly decaying tail in parallel wavenumber. The wave power that decays to high enough frequencies to become ion cyclotron resonant depends on the relative strengths of advection and diffusion in the cascade. For the most realistic values of these parameters, though, there is insufficient power to heat protons and heavy ions. The dominant oblique fluctuations (with dispersion properties of kinetic Alfven waves) undergo Landau damping, which implies strong parallel electron heating. We discuss the probable nonlinear evolution of the electron velocity distributions into parallel beams and discrete phase-space holes (similar to those seen in the terrestrial magnetosphere) which can possibly heat protons via stochastic interactions.

S. R. Cranmer; A. A. van Ballegooijen

2003-05-08T23:59:59.000Z

357

DEEP CHANDRA OBSERVATIONS OF THE EXTENDED GAS SLOSHING SPIRAL IN A2029  

SciTech Connect (OSTI)

Recent X-ray observations of galaxy clusters have shown that there is substructure present in the intracluster medium (ICM), even in clusters that are seemingly relaxed. This substructure is sometimes a result of sloshing of the ICM, which occurs in cool core clusters that have been disturbed by an off-axis merger with a sub-cluster or group. We present deep Chandra observations of the cool core cluster Abell 2029, which has a sloshing spiral extending radially outward from the center of the cluster to approximately 400 kpc at its fullest extent-the largest continuous spiral observed to date. We find a surface brightness excess, a temperature decrement, a density enhancement, an elemental abundance enhancement, and a smooth pressure profile in the area of the spiral. The sloshing gas seems to be interacting with the southern lobe of the central radio galaxy, causing it to bend and giving the radio source a wide-angle tail (WAT) morphology. This shows that WATs can be produced in clusters that are relatively relaxed on large scales. We explore the interaction between heating and cooling in the central region of the cluster. Energy injection from the active galactic nucleus is likely insufficient to offset the cooling, and sloshing may be an important additional mechanism in preventing large amounts of gas from cooling to very low temperatures.

Paterno-Mahler, R.; Blanton, E. L. [Astronomy Department and Institute for Astrophysical Research, Boston University, 725 Commonwealth Ave, Boston, MA 02215 (United States); Randall, S. W. [Harvard Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Clarke, T. E., E-mail: rachelpm@bu.edu, E-mail: eblanton@bu.edu, E-mail: srandall@head.cfa.harvard.edu, E-mail: tracy.clarke@nrl.navy.mil [Naval Research Laboratory, Code 7213, 4555 Overlook Avenue Southwest, Washington, DC 20375 (United States)

2013-08-20T23:59:59.000Z

358

Extending the length and time scales of GramSchmidt Lyapunov vector computations  

SciTech Connect (OSTI)

Lyapunov vectors have found growing interest recently due to their ability to characterize systems out of thermodynamic equilibrium. The computation of orthogonal GramSchmidt vectors requires multiplication and QR decomposition of large matrices, which grow as N{sup 2} (with the particle count). This expense has limited such calculations to relatively small systems and short time scales. Here, we detail two implementations of an algorithm for computing GramSchmidt vectors. The first is a distributed-memory message-passing method using Scalapack. The second uses the newly-released MAGMA library for GPUs. We compare the performance of both codes for LennardJones fluids from N=100 to 1300 between Intel Nahalem/Infiniband DDR and NVIDIA C2050 architectures. To our best knowledge, these are the largest systems for which the GramSchmidt Lyapunov vectors have been computed, and the first time their calculation has been GPU-accelerated. We conclude that Lyapunov vector calculations can be significantly extended in length and time by leveraging the power of GPU-accelerated linear algebra.

Costa, Anthony B., E-mail: acosta@northwestern.edu [Department of Chemistry, Northwestern University, Evanston, IL 60208 (United States); Green, Jason R., E-mail: jason.green@umb.edu [Department of Chemistry, Northwestern University, Evanston, IL 60208 (United States); Department of Chemistry, University of Massachusetts Boston, Boston, MA 02125 (United States)

2013-08-01T23:59:59.000Z

359

Thermal performance sensitivity studies in support of material modeling for extended storage of used nuclear fuel  

SciTech Connect (OSTI)

The work reported here is an investigation of the sensitivity of component temperatures of a storage system, including fuel cladding temperatures, in response to age-related changes that could degrade the design-basis thermal behavior of the system. Three specific areas of interest were identified for this study. degradation of the canister backfill gas from pure helium to a mixture of air and helium, resulting from postulated leakage due to stress corrosion cracking (SCC) of canister welds changes in surface emissivity of system components, resulting from corrosion or other aging mechanisms, which could cause potentially significant changes in temperatures and temperature distributions, due to the effect on thermal radiation exchange between components changes in fuel and basket temperatures due to changes in fuel assembly position within the basket cells in the canister The purpose of these sensitivity studies is to provide a realistic example of how changes in the physical properties or configuration of the storage system components can affect temperatures and temperature distributions. The magnitudes of these sensitivities can provide guidance for identifying appropriate modeling assumptions for thermal evaluations extending long term storage out beyond 50, 100, 200, and 300 years.

Cuta, Judith M.; Suffield, Sarah R.; Fort, James A.; Adkins, Harold E.

2013-08-15T23:59:59.000Z

360

NEWLY IDENTIFIED EXTENDED GREEN OBJECTS (EGOs) FROM THE SPITZER GLIMPSE II SURVEY. II. MOLECULAR CLOUD ENVIRONMENTS  

SciTech Connect (OSTI)

We have undertaken a survey of molecular lines in the 3 mm band toward 57 young stellar objects using the Australia Telescope National Facility Mopra 22 m radio telescope. The target sources were young stellar objects with active outflows (extended green objects (EGOs)) newly identified from the GLIMPSE II survey. We observe a high detection rate (50%) of broad line wing emission in the HNC and CS thermal lines, which combined with the high detection rate of class I methanol masers toward these sources (reported in Paper I) further demonstrates that the GLIMPSE II EGOs are associated with outflows. The physical and kinematic characteristics derived from the 3 mm molecular lines for these newly identified EGOs are consistent with these sources being massive young stellar objects with ongoing outflow activity and rapid accretion. These findings support our previous investigations of the mid-infrared properties of these sources and their association with other star formation tracers (e.g., infrared dark clouds, methanol masers and millimeter dust sources) presented in Paper I. The high detection rate (64%) of the hot core tracer CH{sub 3}CN reveals that the majority of these new EGOs have evolved to the hot molecular core stage. Comparison of the observed molecular column densities with predictions from hot core chemistry models reveals that the newly identified EGOs from the GLIMPSE II survey are members of the youngest hot core population, with an evolutionary time scale of the order of 10{sup 3} yr.

Chen Xi; Gan Conggui; Shen Zhiqiang [Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030 (China); Ellingsen, Simon P.; Titmarsh, Anita [School of Mathematics and Physics, University of Tasmania, Hobart, Tasmania (Australia); He Jinhua, E-mail: chenxi@shao.ac.cn [Key Laboratory for the Structure and Evolution of Celestial Objects, Yunnan Astronomical Observatory/National Astronomical Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, Yunnan Province (China)

2013-06-01T23:59:59.000Z

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361

Extended CO emission in the field of the light echo of V838 Mon  

E-Print Network [OSTI]

V838 Mon erupted at the beginning of 2002 becoming an extremely luminous star with L=10^6 L_sun. The outburst was followed by the spectacular light echo that revealed that the star is immersed in a diffuse and dusty medium, plausibly interstellar in nature. Low angular resolution observations in the lowest CO rotational transitions revealed a molecular emission from the direction of V838 Mon. The origin of this CO emission has not been established. In this paper we investigate the idea that the molecular emission originates in the material responsible for the optical light echo. We report on observations of 13 positions within the light echo in the two lowest rotational transitions of CO using the IRAM 30 m telescope. Emission in CO J=1-0 and J=2-1 was detected in three positions. In three other positions only weak J=1-0 lines were found. We conclude that the molecular emission from the direction of V838 Mon is extended and has a complex distribution. We identify the emission as arising from diffuse interstellar clouds and suggest that the CO-bearing gas and the echoing dust are collocated in the same interstellar cloud.

T. Kami?ski

2008-01-10T23:59:59.000Z

362

Online Condition Monitoring to Enable Extended Operation of Nuclear Power Plants  

SciTech Connect (OSTI)

Safe, secure, and economic operation of nuclear power plants will remain of strategic significance. New and improved monitoring will likely have increased significance in the post-Fukushima world. Prior to Fukushima, many activities were already underway globally to facilitate operation of nuclear power plants beyond their initial licensing periods. Decisions to shut down a nuclear power plant are mostly driven by economic considerations. Online condition monitoring is a means to improve both the safety and economics of extending the operating lifetimes of nuclear power plants, enabling adoption of proactive aging management. With regard to active components (e.g., pumps, valves, motors, etc.), significant experience in other industries has been leveraged to build the science base to support adoption for online condition-based maintenance and proactive aging management in the nuclear industry. Many of the research needs are associated with enabling proactive management of aging in passive components (e.g., pipes, vessels, cables, containment structures, etc.). This paper provides an overview of online condition monitoring for the nuclear power industry with an emphasis on passive components. Following the overview, several technology/knowledge gaps are identified, which require addressing to facilitate widespread online condition monitoring of passive components.

Meyer, Ryan M.; Bond, Leonard J.; Ramuhalli, Pradeep

2012-03-31T23:59:59.000Z

363

Extended Sleeve Products Allow Control and Monitoring of Process Fluid Flows Inside Shielding, Behind Walls and Beneath Floors - 13041  

SciTech Connect (OSTI)

Throughout power generation, delivery and waste remediation, the ability to control process streams in difficult or impossible locations becomes increasingly necessary as the complexity of processes increases. Example applications include radioactive environments, inside concrete installations, buried in dirt, or inside a shielded or insulated pipe. In these situations, it is necessary to implement innovative solutions to tackle such issues as valve maintenance, valve control from remote locations, equipment cleaning in hazardous environments, and flow stream analysis. The Extended Sleeve family of products provides a scalable solution to tackle some of the most challenging applications in hazardous environments which require flow stream control and monitoring. The Extended Sleeve family of products is defined in three groups: Extended Sleeve (ESV), Extended Bonnet (EBV) and Instrument Enclosure (IE). Each of the products provides a variation on the same requirements: to provide access to the internals of a valve, or to monitor the fluid passing through the pipeline through shielding around the process pipe. The shielding can be as simple as a grout filled pipe covering a process pipe or as complex as a concrete deck protecting a room in which the valves and pipes pass through at varying elevations. Extended Sleeves are available between roughly 30 inches and 18 feet of distance between the pipeline centerline and the top of the surface to which it mounts. The Extended Sleeve provides features such as 1.5 inches of adjustment between the pipeline and deck location, internal flush capabilities, automatic alignment of the internal components during assembly and integrated actuator mounting pads. The Extended Bonnet is a shorter fixed height version of the Extended Sleeve which has a removable deck flange to facilitate installation through walls, and is delivered fully assembled. The Instrument Enclosure utilizes many of the same components as an Extended Sleeve, yet allows the installation of process monitoring instruments, such as a turbidity meter to be placed in the flow stream. The basis of the design is a valve body, which, rather than having a directly mounted bonnet has lengths of concentric pipe added, which move the bonnet away from the valve body. The pipe is conceptually similar to an oil field well, with the various strings of casing, and tubing installed. Each concentric pipe provides a required function, such as the outermost pipes, the valve sleeve and penetration sleeve, which provide structural support to the deck flange. For plug valve based designs, the next inner pipe provides compression on the environmental seals at the top of the body to bonnet joint, followed by the innermost pipe which provides rotation of the plug, in the same manner as an extended stem. Ball valve ESVs have an additional pipe to provide compressive loading on the stem packing. Due to the availability of standard pipe grades and weights, the product can be configured to fit a wide array of valve sizes, and application lengths, with current designs as short as seven inches and as tall as 18 feet. Central to the design is the requirement for no special tools or downhole tools to remove parts or configure the product. Off the shelf wrenches, sockets or other hand tools are all that is required. Compared to other products historically available, this design offers a lightweight option, which, while not as rigidly stiff, can deflect compliantly under extreme seismic loading, rather than break. Application conditions vary widely, as the base product is 316 and 304 stainless steel, but utilizes 17-4PH, and other allows as needed based on the temperature range and mechanical requirements. Existing designs are installed in applications as hot as 1400 deg. F, at low pressure, and separately in highly radioactive environments. The selection of plug versus ball valve, metal versus soft seats, and the material of the seals and seats is all dependent on the application requirements. The design of the Extended Sleeve family of products provid

Abbott, Mark W. [Flowserve Corporation, 1978 Foreman Drive Cookeville, TN 38506 (United States)] [Flowserve Corporation, 1978 Foreman Drive Cookeville, TN 38506 (United States)

2013-07-01T23:59:59.000Z

364

Prioritization and Implementation Plan for Collaborative Case Study on RPV Steels During Extended Service  

SciTech Connect (OSTI)

Nuclear power currently provides a significant fraction of the United States non-carbon emitting power generation. In future years, nuclear power must continue to generate a significant portion of the nation's electricity to meet the growing electricity demand, clean energy goals, and ensure energy independence. New reactors will be an essential part of the expansion of nuclear power. However, given limits on new builds imposed by economics and industrial capacity, the extended service of the existing fleet will also be required. Ensuring public safety and environmental protection is a prerequisite to all nuclear power plant operating and licensing decisions at all stages of reactor life. This includes the original license period of 40 years, the first license extension to 60 years, and certainly for any consideration of life beyond 60 years. For extended operating periods, it must be shown that adequate aging management programs are present or planned and that appropriate safety margins exist throughout the subsequent license renewal periods. Materials degradation can impact reactor reliability, availability, and potentially, safe operation. Components within a reactor must tolerate the harsh environment of high temperature water, stress, vibration, and/or an intense neutron field. Degradation of materials in this environment can lead to reduced performance, and in some cases, sudden failure. Clearly, understanding materials degradation and accounting for the effects of a reactor environment in operating and regulatory limits is essential. The Light Water Reactor Sustainability (LWRS) Program is designed to support the long-term operation (LTO) of existing domestic nuclear power generation with targeted collaborative research programs into areas beyond current short-term optimization opportunities. Within the LWRS program, two pathways have been initiated to perform research essential to informing relicensing decisions. The Materials Aging and Degradation Pathway is designed to help develop the scientific basis for understanding and predicting long-term environmental degradation behavior of materials in nuclear power plants and to provide data and methods to assess performance of systems, structures, and components essential to safe and sustained operation. The Risk-Informed Safety Margins Characterization Pathway (RISMC) seeks to merge fundamental scientific understanding of critical phenomenological conditions and deterministic predictions of nuclear power plant performance with risk-informed characterization tools. This will provide an integrated characterization of public safety margins in an optimization of nuclear safety, plant performance, and long-term asset management. Clearly, these two pathways have many synergies in goals and outcomes. The data and mechanisms generated in the Materials Pathway may feed into and mold efforts within the RISMC Pathway. In addition, insights from the characterization tools developed in RISMC tasks may inform materials testing needs and experiments. To demonstrate this potentially powerful interaction, a joint case study has been proposed and initiated. This document describes the initial planning for a coordinated study between the Materials and the RISMC Pathways. A brief description of each Pathway is presented along with a more detailed description of the needs and requirements of this collaborative task. A list of criteria for any case-study candidate are then listed, along with the rationale for choosing pressurized thermal shock as the prime candidate an inter-pathway collaboration. A proposed timeline and organization of future interactions on this subject area is also presented.

Busby, Jeremy T [ORNL; Nanstad, Randy K [ORNL

2010-02-01T23:59:59.000Z

365

Use of Irrigation to Extend the Seeding Window for Final Reclamation at Yucca Mountain, Nevada  

SciTech Connect (OSTI)

The U.S. Department of Energy has implemented a program to investigate the feasibility of various techniques for reclaiming lands disturbed during site characterization at Yucca Mountain. As part of this program, two studies were conducted in 1997 to assess the effects of combinations of seeding date (date that seeds are planted) and supplemental irrigation on densities of native plant species at Yucca Mountain. Study objectives were to (1) determine whether the traditional seeding window (October-December) could be extended through combinations of seeding date and irrigation date, (2) determine which combination of seeding date and irrigation was most successful, and (3) assess the effects of irrigation versus natural precipitation on seedling establishment. In the first study, a multi-species seed mix of 16 native species was sown into plots on four dates (12/96, 2/97, 3/97, and 4/97). Irrigation treatments were control (no irrigation) or addition of 80 mm of supplemental water applied over a one month period. Plant densities were sampled in August and again in October, 1997. In the second study, Larrea tridentata and Lycium andersonii, two species that are common at Yucca Mountain, but difficult to establish from seed, were sown together into plots in January and August, 1997. Half the plots were irrigated with approximately 250 mm of water between August 18 and September 11, while the remaining plots received no irrigation (control). Plant densities were sampled in October, 1997. The August census for the multi-species mix study showed irrigated plots that were sown in February, March and April had higher plant densities and more species than plots that were not irrigated. Irrigation had no effect on plant densities on plots that were seeded in December. Plots were used again in October following 18 mm of precipitation in September. Densities of three species, Ambrosia dumosa, Hymenoclea salsola, and L. tridentata, (warm-season species) were lower on irrigated plots sown in December, February, and March, and showed no response to irrigation on plots sown in April. Therefore, early spring irrigation did not facilitate establishment of warm-season species. These results suggest that these species are dependent upon precipitation while temperatures are warm in late summer or fall. However, control plots that were seeded in December had acceptable densities of these species. A more practical approach might be to avoid irrigation costs by seeding in December and waiting for fall precipitation. The remaining species (cool-season species) showed an opposite response to supplemental water with greater densities on irrigated plots sown in February, March, and April, and no response to irrigation on plots sown in December. While these results show that irrigation can extend the seeding window for cool-season species should it be necessary, it was also apparent that if seeds are sown by late December, irrigation is not necessary to achieve acceptable plant densities.

TRW Environmental Safety

2000-08-01T23:59:59.000Z

366

Extended versus localized vibrations: the case of L-cysteine and L-cystine amino acids  

E-Print Network [OSTI]

A detailed quantitative analysis of the specific heat in the $1.8-300$ K temperature range for L-cysteine and L-cystine amino acids was presented. We observed not extended but a sharp transition at $\\sim 76$ K for L-cysteine. This transition was associated to the thiol group ordering and the order-disorder transition was adequately modeled by a 2D Ising model. The energy difference among two thiol configurations was found to be $-J=\\varepsilon_{A}-\\varepsilon_{B}=-66.6$ cal/mole. Besides, we conducted a study of phonon and rotor contributions to the specific heat and we proposed a generalization of Debye model. It was possible to evaluate the exponent of the $g(\\omega)$, leading to the result that it corresponds to the Debye model for L-cysteine, which implies that the boson peak in this system is due to a maximum in the $C_{coup}(\\omega)$ and also that the plane wave of wave-vector $\\vec{q}$ is a good approximation to describe the phonons. On the other hand the origin of the boson peak for L-cystine correlates to a peak in $g(\\omega)$ and phonons in L-cystine could be well represented by strongly attenuated plane waves or localized vibrations. Lastly, the analysis at very low temperature ($T<3$ K) indicated that L-cysteine presented a nearly temperature independent behaviour which is opposite to which is widely observed in systems with glassy characteristics within the Two-Level System (TLS) framework.

M. S. Ishikawa; T. A. Lima; F. F. Ferreira; H. S. Martinho

2014-02-28T23:59:59.000Z

367

Peccei-Quinn invariant singlet extended SUSY with anomalous U(1) gauge symmetry  

E-Print Network [OSTI]

Recent discovery of the SM-like Higgs boson with $m_h\\simeq 125$ GeV motivates an extension of the minimal supersymmetric standard model (MSSM), which involves a singlet Higgs superfield with a sizable Yukawa coupling to the doublet Higgs superfields. We examine such singlet-extended SUSY models with a Peccei-Quinn (PQ) symmetry that originates from an anomalous $U(1)_A$ gauge symmetry. We focus on the specific scheme that the PQ symmetry is spontaneously broken at an intermediate scale $v_{\\rm PQ}\\sim \\sqrt{m_{\\rm SUSY}M_{\\rm Pl}}$ by an interplay between Planck scale suppressed operators and tachyonic soft scalar mass $m_{\\rm SUSY}\\sim \\sqrt{D_A}$ induced dominantly by the $U(1)_A$ $D$-term, $D_A$. This scheme also results in spontaneous SUSY breaking in the PQ sector, generating the gaugino masses $M_{1/2}\\sim \\sqrt{D_A}$ when it is transmitted to the MSSM sector by the conventional gauge mediation mechanism. As a result, the MSSM soft parameters in this scheme are induced mostly by the $U(1)_A$ $D$-term and the gauge mediated SUSY breaking from the PQ sector, so that the sparticle masses can be near the present experimental bounds without causing the SUSY flavor problem. The scheme is severely constrained by the condition that a phenomenologically viable form of the low energy operators of the singlet and doublet Higgs superfields is generated by the PQ breaking sector in a way similar to the Kim-Nilles solution of the $\\mu$ problem, and the resulting Higgs mass parameters allow the electroweak symmetry breaking with small $\\tan\\beta$. We find two minimal models with two singlet Higgs superfields, satisfying this condition with a relatively simple form of the PQ breaking sector, and briefly discuss some phenomenological aspects of the model.

Sang Hui Im; Min-Seok Seo

2014-12-08T23:59:59.000Z

368

GaSb substrates with extended IR wavelength for advanced space based applications  

SciTech Connect (OSTI)

GaSb substrates have advantages that make them attractive for implementation of a wide range of infrared (IR) detectors with higher operating temperatures for stealth and space based applications. A significant aspect that would enable widespread commercial application of GaSb wafers for very long wavelength IR (VLWIR) applications is the capability for transmissivity beyond 15 m. Due largely to the GaSb (antisite) defect and other point defects in undoped GaSb substrates, intrinsic GaSb is still slightly p-type and strongly absorbs in the VLWIR. This requires backside thinning of the GaSb substrate for IR transmissivity. An extremely low n-type GaSb substrate is preferred to eliminate thinning and provide a substrate solution for backside illuminated VLWIR devices. By providing a more homogeneous radial distribution of the melt solute to suppress GaSb formation and controlling the cooling rate, ultra low doped n:GaSb has been achieved. This study examines the surface properties and IR transmission spectra of ultra low doped GaSb substrates at both room and low temperatures. Atomic force microscopy (AFM), homoepitaxy by MBE, and infrared Fourier transform (FTIR) analysis was implemented to examine material quality. As compared with standard low doped GaSb, the ultra low doped substrates show over 50% transmission and consistent wavelength transparency past 23 m with improved %T at low temperature. Homoepitaxy and AFM results indicate the ultra low doped GaSb has a low thermal desorbtion character and qualified morphology. In summary, improvements in room temperature IR transmission and extended wavelength characteristics have been shown consistently for ultra low doped n:GaSb substrates.

Allen, Lisa P.; Flint, Patrick; Dallas, Gordon; Bakken, Daniel; Blanchat, Kevin; Brown, Gail J.; Vangala, Shivashankar R.; Goodhue, William D.; Krishnaswami, Kannan

2009-05-01T23:59:59.000Z

369

The AP1000{sup R} nuclear power plant innovative features for extended station blackout mitigation  

SciTech Connect (OSTI)

Station Blackout (SBO) is defined as 'a condition wherein a nuclear power plant sustains a loss of all offsite electric power system concurrent with turbine trip and unavailability of all onsite emergency alternating current (AC) power system. Station blackout does not include the loss of available AC power to buses fed by station batteries through inverters or by alternate AC sources as defined in this section, nor does it assume a concurrent single failure or design basis accident...' in accordance with Reference 1. In this paper, the innovative features of the AP1000 plant design are described with their operation in the scenario of an extended station blackout event. General operation of the passive safety systems are described as well as the unique features which allow the AP1000 plant to cope for at least 7 days during station blackout. Points of emphasis will include: - Passive safety system operation during SBO - 'Fail-safe' nature of key passive safety system valves; automatically places the valve in a conservatively safe alignment even in case of multiple failures in all power supply systems, including normal AC and battery backup - Passive Spent Fuel Pool cooling and makeup water supply during SBO - Robustness of AP1000 plant due to the location of key systems, structures and components required for Safe Shutdown - Diverse means of supplying makeup water to the Passive Containment Cooling System (PCS) and the Spent Fuel Pool (SFP) through use of an engineered, safety-related piping interface and portable equipment, as well as with permanently installed onsite ancillary equipment. (authors)

Vereb, F.; Winters, J.; Schulz, T.; Cummins, E.; Oriani, L. [Westinghouse Electric Company LLC, 1000 Westinghouse Drive, Cranberry Township, PA 16066 (United States)

2012-07-01T23:59:59.000Z

370

Composite molding of SPECTRA{reg_sign} extended chain polyethylene fibers in a flexible rubber matrix  

SciTech Connect (OSTI)

THETA Technologies, Inc. is a multidisciplinary research and development firm involved in the design and development of affordable, lightweight, high ballistic protection modular body armor ensemble for future military, law enforcement, and specialized commercial market applications. In the course of their research, THETA Technologies, Inc. identified that current state-of-the-art in ballistic protection and overall composite reinforcement is a high density extended chain polyethylene (HDECPE) fiber known as SPECTRA{reg_sign}, a product of AlliedSignal Fibers, Petersburg, VA. SPECTRA{reg_sign} is ten times stronger than steel of equal weight. As a non-aramid polyethylene, it offers highly desirable properties in areas of resistance to chemical degradation, virtual neutral buoyancy (0.97), and increased capacity for composite bonding over competing nylon-based fibers, such as KEVLAR{reg_sign}. SPECTRA Shield{trademark}, a woven ballistic-resistant fabric using the SPECTRA{reg_sign} fiber, is presently the most effective ballistic-resistant component for both flexible and hard plate composite armors. THETA Technologies, Inc. identified a market need for a boot sole design that would measurably increase protection to the wearer without significantly degrading performance in other areas, such as flexibility and overall weight. THETA Technologies, Inc. proposed a nitrile rubber and SPECTRA{reg_sign} fiber matrix to produce an optimal boot sole. The objective of this CRADA effort was to develop and test a process for combining the SPECTRA{reg_sign} fiber, in both chopped fiber and SPECTRA Shield{trademark} form, within a semiflexible nitrile composite having desirable and marketable properties in areas of resistance to penetration and mechanical stress.

McKeehan, K.

1997-08-01T23:59:59.000Z

371

Characterization of basin concrete in support of structural integrity demonstration for extended storage  

SciTech Connect (OSTI)

Concrete core samples from C basin were characterized through material testing and analysis to verify the design inputs for structural analysis of the L Basin and to evaluate the type and extent of changes in the material condition of the concrete under extended service for fuel storage. To avoid the impact on operations, core samples were not collected from L area, but rather, several concrete core samples were taken from the C Basin prior to its closure. C basin was selected due to its similar environmental exposure and service history compared to L Basin. The microstructure and chemical composition of the concrete exposed to the water was profiled from the water surface into the wall to evaluate the impact and extent of exposure. No significant leaching of concrete components was observed. Ingress of carbonation or deleterious species was determined to be insignificant. No evidence of alkali-silica reactions (ASR) was observed. Ettringite was observed to form throughout the structure (in air voids or pores); however, the sulfur content was measured to be consistent with the initial concrete that was used to construct the facility. Similar ettringite trends were observed in the interior segments of the core samples. The compressive strength of the concrete at the mid-wall of the basin was measured, and similar microstructural analysis was conducted on these materials post compression testing. The microstructure was determined to be similar to near-surface segments of the core samples. The average strength was 4148 psi, which is well-above the design strength of 2500 psi. The analyses showed that phase alterations and minor cracking in a microstructure did not affect the design specification for the concrete.

Duncan, A.

2014-09-30T23:59:59.000Z

372

The Extended Power Law as Intrinsic Signature For a Black Hole  

E-Print Network [OSTI]

We analyze the exact general relativistic exact integro-differential equation of radiative transfer describing the interaction of low energy photons with a Maxwellian distribution of hot electrons in gravitational field of a Schwarzschild black hole. We prove that due to Comptonization an initial arbitrary spectrum of low energy photons unavoidably results in spectra characterized by an extended power-law feature. We examine the spectral index by using both analytical and numerical methods for a variety of physical parameters as such the plasma temperature and the mass accretion rate. The presence of the event horizon as well as the behaviour of the null geodesics in its vicinity largely determine the dependence of the spectral index on the flow parameters. We come to the conclusion that the bulk motion of a converging flow is more efficient in upscattering photons than thermal Comptonization provided that the electron temperature in the flow is of order of a few keV or less. In this case, the spectrum observed at infinity consists of a soft component produced by those input photons that escape after a few scatterings without any significant energy change and of hard component (described by a power law) produced by the photons that underwent significant upscattering. The luminosity of the power-law component is relatively small compared to that of the soft component. For accretion into black hole the spectral energy index of the power-law is always higher than one for plasma temperature of order of a few keV. This result suggests that the bulk motion Comptonization might be responsible for the power-law spectra seen in the black-hole X-ray sources.

Lev Titarchuk; Thomas Zannias

1997-08-27T23:59:59.000Z

373

The Relationship Between Baryons and Dark Matter in Extended Galaxy Halos  

E-Print Network [OSTI]

The relationship between gas-rich galaxies and Ly-alpha absorbers is addressed in this paper in the context of the baryonic content of galaxy halos. Deep Arecibo HI observations are presented of two gas-rich spiral galaxies within 125 kpc projected distance of a Ly-alpha absorber at a similar velocity. The galaxies investigated are close to edge-on and the absorbers lie almost along their major axes, allowing for a comparison of the Ly-alpha absorber velocities with galactic rotation. This comparison is used to examine whether the absorbers are diffuse gas rotating with the galaxies' halos, outflow material from the galaxies, or intergalactic gas in the low redshift cosmic web. The results indicate that if the gas resides in the galaxies' halos it is not rotating with the system and possibly counter-rotating. In addition, simple geometry indicates the gas was not ejected from the galaxies and there are no gas-rich satellites detected down to 3.6 - 7.5 x 10^6 Msun, or remnants of satellites to 5-6 x 10^{18} cm^{-2}. The gas could potentially be infalling from large radii, but the velocities and distances are rather high compared to the high velocity clouds around the Milky Way. The most likely explanation is the galaxies and absorbers are not directly associated, despite the vicinity of the spiral galaxies to the absorbers (58-77 kpc from the HI edge). The spiral galaxies reside in a filament of intergalactic gas, and the gas detected by the absorber has not yet come into equilibrium with the galaxy. These results also indicate that the massive, extended dark matter halos of spiral galaxies do not commonly have an associated diffuse baryonic component at large radii.

M. E. Putman; J. L. Rosenberg; J. T. Stocke; R. McEntaffer

2005-10-11T23:59:59.000Z

374

AN EXTENDED GRID OF NOVA MODELS. III. VERY LUMINOUS, RED NOVAE  

SciTech Connect (OSTI)

Extremely luminous, red eruptive variables like RV in M31 are being suggested as exemplars of a new class of astrophysical objects. Our greatly extended series of nova simulations shows that classical nova models can produce very red, luminous eruptions. In a poorly studied corner of three-dimensional nova parameter space (very cold, low-mass white dwarfs, accreting at very low rates) we find bona fide classical novae that are very luminous and red because they eject very slowly moving, massive envelopes. A crucial prediction of these nova models-in contrast to the predictions of merging star ('mergeburst') models-is that a hot remnant, the underlying white dwarf, will emerge after the massive ejected envelope has expanded enough to become optically thin. This blue remnant must fade on a timescale of decades-much faster than a 'mergeburst', which must fade on timescales of millennia or longer. Furthermore, the cooling nova white dwarf and its expanding ejecta must become redder in the years after eruption, while a contracting mergeburst must become hotter and bluer. We predict that red novae will always brighten to L {approx} 1000 L{sub sun} for about one year before rising to the maximum luminosity at L {approx} 10{sup 6}-10{sup 7} L{sub sun}. The maximum luminosity attainable by a nova is likely to be L {approx} 10{sup 7} L{sub sun}, corresponding to M {approx} -12. In an accompanying paper, we describe a fading, luminous blue candidate for the remnant of M31-RV; it is observed with the Hubble Space Telescope to be compatible only with the nova model.

Shara, Michael M.; Zurek, David [Department of Astrophysics, American Museum of Natural History, Central Park West and 79th Street, New York, NY 10024-5192 (United States); Yaron, Ofer; Prialnik, Dina; Kovetz, Attay [Department of Geophysics and Planetary Sciences, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv 69978 (Israel)

2010-12-10T23:59:59.000Z

375

Extending the Lifetime of Fuel Cell Based Hybrid Systems* Jianli Zhuo1, Chaitali Chakrabartil, Naehyuck Chang2, Sarma Vrudhula3  

E-Print Network [OSTI]

34.1 Extending the Lifetime of Fuel Cell Based Hybrid Systems* Jianli Zhuo1, Chaitali Chakrabartil@asu.edu ABSTRACT for portable applications. Fuel cells have very high energy densities Fuel cells are clean power densities and lifetimes compared to batteries. However, fuel cells

Kambhampati, Subbarao

376

Abstract--The robot described in this paper, SUE (Supinator Extender), adds forearm/wrist rehabilitation functionality to  

E-Print Network [OSTI]

the workspace of the arm robot. The rotation axis used for supination-pronation is a small bearing just below. Traditional robot wrists that attach to the end of a serial robotic chain resemble the human arm with a wrist Abstract--The robot described in this paper, SUE (Supinator Extender), adds forearm

Bobrow, James E.

377

An extended organic carbon-isotope record across the TriassicJurassic boundary in the Queen Charlotte Islands,  

E-Print Network [OSTI]

a negative offset in baseline carbon isotope values from approximately -29 in the Late Norian to -31An extended organic carbon-isotope record across the Triassic­Jurassic boundary in the Queen carbon-isotope data are presented for the Triassic­Jurassic boundary section at Kennecott Point, Queen

Williford, Kenneth H.

378

Fast Protein Folding in the Hydrophobic-hydrophilic Model Within Three-eights of Optimal (Extended Abstract)  

E-Print Network [OSTI]

Fast Protein Folding in the Hydrophobic-hydrophilic Model Within Three-eights of Optimal (Extended for the protein folding problem in the hydrophobic- hydrophilic model, Dill (1985). To our knowledge, our al for this model, Dill (1994). The hydrophobic-hydrophilic model abstracts the dominant force of protein folding

Istrail, Sorin

379

Aggregation Kinetics of Extended Porphyrin and Cyanine Dye Assemblies Robert F. Pasternack,* Cavan Fleming,* Stephanie Herring,* Peter J. Collings,  

E-Print Network [OSTI]

Aggregation Kinetics of Extended Porphyrin and Cyanine Dye Assemblies Robert F. Pasternack,* Cavan. The porphyrin's assembly kinetics, for example, displays an induction period unlike that of the cyanine dye. Two of an aggregation nucleus is rate-determining appears to be applicable; for the pseudoisocyanine dye, an equation

Collings, Peter

380

mSSL: Extending SSL to Support Data Sharing Among Collaborative Clients Jun Li and Xun Kang  

E-Print Network [OSTI]

mSSL: Extending SSL to Support Data Sharing Among Collaborative Clients Jun Li and Xun Kang it offered? In this paper, we present a protocol, called mSSL, that provides a set of security functions and confidentiality support, mSSL provides an original design on supporting data integrity and proof of service

Li, Jun

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

A robust state-of-charge estimator for multiple types of lithium-ion batteries using adaptive extended Kalman filter  

E-Print Network [OSTI]

A robust state-of-charge estimator for multiple types of lithium-ion batteries using adaptive a SOC estimator for suitable for multiple lithium ion battery chemistries. Proved the system robustness of charge (SoC) of multiple types of lithium ion battery (LiB) cells with adaptive extended Kalman filter

Mi, Chunting "Chris"

382

An Extended Dead-End Elimination Algorithm to Determine Gap-Free Lists of Low Energy States  

E-Print Network [OSTI]

modelling; global energy minimum; bacteriorhodopsin; protonation state; pH titration; X-DEE; dead of lowest free energy is the most prob- able and thus of primary interest in structural research. ProteinsAn Extended Dead-End Elimination Algorithm to Determine Gap-Free Lists of Low Energy States EDDA

Ullmann, G. Matthias

383

Amon Millner draft short paper submitted to the Interaction Design and Children 2011 conference Modkit: Blending and Extending Approachable Platforms  

E-Print Network [OSTI]

programming environment and the Arduino platform. The demonstration will feature the current Modkit components, activities, and projects that illustrate how the toolkit blends Scratch and Arduino platforms to extend what). General Terms Design, Human Factors, Languages. Keywords Modkit, Scratch, Arduino, informal learning

384

Proceedings of Student/Faculty Research Day, CSIS, Pace University, May 4th Extending the Life of Legacy Software Systems  

E-Print Network [OSTI]

as the application of scientific knowledge, especially in industry and business. Ray Kurzweil [5] presented which must be considered when extending the life of a legacy system in light of the Technology Life Obsolescence Surplus Retire Support Antiquity Table 2. Comparison of Technology Life Cycle Models The models

Tappert, Charles

385

Extended Near-Infrared Resonance Raman Investigations of an Organic Mixed-Valence System: Diazatetracyclodiene Radical Cation  

E-Print Network [OSTI]

Extended Near-Infrared Resonance Raman Investigations of an Organic Mixed-Valence System near-infrared region show that six modes are coupled to the intramolecular charge-transfer transition transfer (IVCT) absorption bands in the red to near- infrared region of the spectrum, which are, at least

386

Experimental Validation of a Lithium-Ion Battery State of Charge Estimation with an Extended Kalman Filter  

E-Print Network [OSTI]

], is identified and validated through experimental data by a 10 Ah li-ion battery pack, during charge 37 V at 10 Ah Li-ion battery.. Keywords: Battery model, parameter identification, Kalman filter, SOCExperimental Validation of a Lithium-Ion Battery State of Charge Estimation with an Extended Kalman

Stefanopoulou, Anna

387

Extending Document Summarization to Information Graphics Sandra Carberry, Stephanie Elzer, Nancy Green, Kathleen McCoy, Daniel Chester  

E-Print Network [OSTI]

Extending Document Summarization to Information Graphics Sandra Carberry, Stephanie Elzer, Nancy at Greensboro, Greensboro, NC 27402 (nlgreen@uncg.edu) Abstract Information graphics (non-pictorial graphics such as bar charts or line graphs) are an important component of multimedia documents. Often such graphics

Carberry, Sandra

388

Extended Example: Distributed Train In this chapter I present a computational study of an auctionbased method for decentral  

E-Print Network [OSTI]

Chapter 9 Extended Example: Distributed Train Scheduling In this chapter I present a computational study of an auction­based method for decentral­ ized train scheduling. 1 Auction methods are well suited, with an au­ tonomous dispatch agent responsible for the flow of trains over each territory. Each train

Chen, Yiling

389

Steam-Powered Sensing: Extended Design and Evaluation ISI Technical Report ISI-TR-2011-670  

E-Print Network [OSTI]

Steam-Powered Sensing: Extended Design and Evaluation ISI Technical Report ISI-TR-2011 to reduce system deployment cost, and test those approaches in a real-world monitoring of steam pipelines show that non-invasive sensing can infer blockages in water and steam pipelines, and partial blockages

Heidemann, John

390

Sensorless Direct Torque Control For Salient Pole PMSM Based on Extended Kalman Filter Fed By AC/DC/AC Converter  

E-Print Network [OSTI]

Sensorless Direct Torque Control For Salient ­ Pole PMSM Based on Extended Kalman Filter Fed By AC is proposed. The Direct Torque Control (DTC) technique for PMSM is receiving increasing attention due on the stochastic intromission, in others words, noise. The PMSM is fed by an indirect power electronic converter

Paris-Sud XI, Université de

391

Oak Ridge National Laboratory Old Hydrofracture Facility Waste Remediation Using the Borehole-Miner Extendible-Nozzle Sluicer  

SciTech Connect (OSTI)

A borehole-miner extendible-nozzle sluicing system was designed, constructed, and deployed at Oak Ridge National Laboratory to remediate five horizontal underground storage tanks containing sludge and supernate at the ORNL Old Hydrofracture Facility site. The tanks were remediated in fiscal year 1998 to remove {approx}98% of the waste, {approx}3% greater than the target removal of >95% of the waste. The tanks contained up to 18 in. of sludge covered by supernate. The 42,000 gal of low level liquid waste were estimated to contain 30,000 Ci, with 97% of this total located in the sludge. The retrieval was successful. At the completion of the remediation, the State of Tennessee Department of Environment and Conservation agreed that the tanks were cleaned to the maximum extent practicable using pumping technology. This deployment was the first radioactive demonstration of the borehole-miner extendible-nozzle water-jetting system. The extendible nozzle is based on existing bore hole-miner technology used to fracture and dislodge ore deposits in mines. Typically borehole-miner technology includes both dislodging and retrieval capabilities. Both dislodging, using the extendible-nozzle water-jetting system, and retrieval, using a jet pump located at the base of the mast, are deployed as an integrated system through one borehole or riser. Note that the extendible-nozzle system for Oak Ridge remediation only incorporated the dislodging capability; the retrieval pump was deployed through a separate riser. The borehole-miner development and deployment is part of the Retrieval Process Development and Enhancements project under the direction of the US Department of Energy's EM-50 Tanks Focus Area. This development and deployment was conducted as a partnership between RPD and E and the Oak Ridge National Laboratory's US DOE EM040 Old Hydrofracture Facility remediation project team.

Bamberger, J.A.; Boris, G.F.

1999-10-07T23:59:59.000Z

392

The Search for High Energy Extended Emission by Fermi-LAT from Swift-Localized Gamma-Ray Bursts  

SciTech Connect (OSTI)

The brighter Fermi-LAT bursts have exhibited emission at energies >0.1 GeV that persists as late as {approx}2 ks after the prompt phase has nominally ended. This so-called 'extended emission' could arise from continued activity of the prompt burst mechanism or it could be the start of a high energy afterglow component. The high energy extended emission seen by the LAT has typically followed a t{sup -}{gamma} power-law temporal decay where {gamma} {approx} 1.2-1.7 and has shown no strong indication of spectral evolution. In contrast, the prompt burst emission generally displays strong spectral variability and more complex temporal changes in the LAT band. This differing behavior suggests that the extended emission likely corresponds to an early afterglow phase produced by an external shock. In this study, we look for evidence of high energy extended emission from 145 Swift-localized GRBs that have occurred since the launch of Fermi. A majority of these bursts were either outside of the LAT field-of-view or were otherwise not detected by the LAT during the prompt phase. However, because of the scanning operation of the Fermi satellite, the long-lived extended emission of these bursts may be detectable in the LAT data on the {approx}few ks time scale. We will look for emission from individual bursts and will perform a stacking analysis in order to set bounds on this emission for the sample as a whole. The detection of such emission would have implications for afterglow models and for the overall energy budget of GRBs.

Chiang, J.; /Stanford U., HEPL /SLAC; Racusin, J.L.; /NASA, Goddard

2012-05-01T23:59:59.000Z

393

Extended Lagrangian Born-Oppenheimer molecular dynamics in the limit of vanishing self-consistent field optimization  

SciTech Connect (OSTI)

We present an efficient general approach to first principles molecular dynamics simulations based on extended Lagrangian Born-Oppenheimer molecular dynamics [A. M. N. Niklasson, Phys. Rev. Lett. 100, 123004 (2008)] in the limit of vanishing self-consistent field optimization. The reduction of the optimization requirement reduces the computational cost to a minimum, but without causing any significant loss of accuracy or long-term energy drift. The optimization-free first principles molecular dynamics requires only one single diagonalization per time step, but is still able to provide trajectories at the same level of accuracy as exact, fully converged, Born-Oppenheimer molecular dynamics simulations. The optimization-free limit of extended Lagrangian Born-Oppenheimer molecular dynamics therefore represents an ideal starting point for robust and efficient first principles quantum mechanical molecular dynamics simulations.

Souvatzis, Petros, E-mail: petros.souvatsiz@fysik.uu.se [Department of Physics and Astronomy, Division of Materials Theory, Uppsala University, Box 516, SE-75120, Uppsala (Sweden)] [Department of Physics and Astronomy, Division of Materials Theory, Uppsala University, Box 516, SE-75120, Uppsala (Sweden); Niklasson, Anders M. N., E-mail: amn@lanl.gov [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2013-12-07T23:59:59.000Z

394

Transformation of the extended Gamma function $?^{2,0}_{0,2}[(b,x)]$ with applications to astrophysical thermonuclear functions  

E-Print Network [OSTI]

Two representations of the extended gamma functions $\\Gamma^{2,0}_{0,2}[(b,x)]$ are proved. These representations are exploited to find a transformation relation between two Fox's $H$-functions. These results are used to solve Fox's $H$-function in terms of Meijer's $G$-function for certain values of the parameters. A closed form representation of the kernel of the Bessel type integral transform is also proved.

M. Aslam Chaudhry

1998-11-06T23:59:59.000Z

395

LOGISTIC FUNCTION PROFILE FIT: A least-squares program for fitting interface profiles to an extended logistic function  

SciTech Connect (OSTI)

The extended logistic function provides a physically reasonable description of interfaces such as depth profiles or line scans of surface topological or compositional features. It describes these interfaces with the minimum number of parameters, namely, position, width, and asymmetry. Logistic Function Profile Fit (LFPF) is a robust, least-squares fitting program in which the nonlinear extended logistic function is linearized by a Taylor series expansion (equivalent to a Newton-Raphson approach) with no apparent introduction of bias in the analysis. The program provides reliable confidence limits for the parameters when systematic errors are minimal and provides a display of the residuals from the fit for the detection of systematic errors. The program will aid researchers in applying ASTM E1636-10, 'Standard practice for analytically describing sputter-depth-profile and linescan-profile data by an extended logistic function,' and may also prove useful in applying ISO 18516: 2006, 'Surface chemical analysis-Auger electron spectroscopy and x-ray photoelectron spectroscopy-determination of lateral resolution.' Examples are given of LFPF fits to a secondary ion mass spectrometry depth profile, an Auger surface line scan, and synthetic data generated to exhibit known systematic errors for examining the significance of such errors to the extrapolation of partial profiles.

Kirchhoff, William H. [Surface and Microanalysis Science Division, National Institute of Standards and Technology, 100 Bureau Drive, Stop 8370, Gaithersburg, Maryland 20899-8370 (United States)

2012-09-15T23:59:59.000Z

396

J. Phys. Chem. 1988, 92, 1731-1738 1731 Energies of cr* Orbitals from Extended Huckel Calculations in Combination wlth HAM  

E-Print Network [OSTI]

J. Phys. Chem. 1988, 92, 1731-1738 1731 Energies of cr* Orbitals from Extended Huckel Calculations, Ithaca, New York 14853- 1301 (Received: May 20, 1987) The extended Hiickel theory has been given an approximatededuction from first principles. The use of experimentalionization energies for the atoms in the molecule

Li, Jing

397

Hybrid MHD-Gyrokinetic codes: extended models, new implementations and forthcoming applications G. Vlad, S. Briguglio, G. Fogaccia, F. Zonca -Associazione EURATOM-ENEA, Frascati, (Rome) Italy  

E-Print Network [OSTI]

Hybrid MHD-Gyrokinetic codes: extended models, new implementations and forthcoming applications G between Alfvn waves and energetic particles and their mutual interaction in toroidal devices. HMGC extended to include new physics. In this paper we will present the first simulations of an electron

Vlad, Gregorio

398

A new method of observing weak extended x-ray sources with the Reuven Ramaty High-Energy Solar Spectroscopic Imager  

E-Print Network [OSTI]

A new method of observing weak extended x-ray sources with the Reuven Ramaty High-Energy Solar, for observing weak extended x-ray sources with the Reuven Ramaty High-Energy Solar Spectroscopic Imager RHESSI. INTRODUCTION The Reuven Ramaty High-Energy Solar Spectroscopic Imager, RHESSI,1 is a space-based solar x

California at Berkeley, University of

399

Method for extending the useful shelf-life of refrigerated red blood cells by flushing with inert gas  

DOE Patents [OSTI]

Method using oxygen removal for extending the useful shelf-life of refrigerated red blood cells. A cost-effective, 4.degree. C. storage procedure that preserves red cell quality and prolongs post-transfusion in vivo survival is described. Preservation of adenosine triphosphate levels and reduction in hemolysis and in membrane vesicle production of red blood cells stored at 4.degree. C. for prolonged periods of time is achieved by removing oxygen therefrom at the time of storage; in particular, by flushing with an inert gas. Adenosine triphosphate levels of the stored red blood cells are boosted in some samples by addition of ammonium phosphate.

Bitensky, Mark W. (Los Alamos, NM); Yoshida, Tatsuro (Los Alamos, NM)

1997-01-01T23:59:59.000Z

400

Method for extending the useful shelf-life of refrigerated red blood cells by flushing with inert gas  

DOE Patents [OSTI]

A method is disclosed using oxygen removal for extending the useful shelf-life of refrigerated red blood cells. A cost-effective, 4 C storage procedure that preserves red cell quality and prolongs post-transfusion in vivo survival is described. Preservation of adenosine triphosphate levels and reduction in hemolysis and in membrane vesicle production of red blood cells stored at 4 C for prolonged periods of time is achieved by removing oxygen from the red blood cells at the time of storage; in particular, by flushing with an inert gas. Adenosine triphosphate levels of the stored red blood cells are boosted in some samples by addition of ammonium phosphate. 4 figs.

Bitensky, M.W.; Yoshida, Tatsuro

1997-04-29T23:59:59.000Z

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Perihelion advances for the orbits of Mercury, Earth and Pluto from Extended Theory of General Relativity (ETGR)  

E-Print Network [OSTI]

We explore the geodesic movement on an effective four-dimensional hypersurface that is embedded in a five-dimensional Ricci-flat manifold described by a canonical metric, in order to applying to planetary orbits in our solar system. Some important solutions are given, which provide the standard solutions of general relativity without any extra force component. We study the perihelion advances of Mercury, the Earth and Pluto using the extended theory of general relativity (ETGR). Our results are in very good agreement with observations and show how the foliation is determinant to the value of the perihelion's advances. Possible applications are not limited to these kinds of orbits.

Luis Santiago Ridao; Rodrigo Avalos; Martn Daniel De Cicco; Mauricio Bellini

2014-11-11T23:59:59.000Z

402

The "extended phase space" approach to quantum geometrodynamics: what can it give for the development of quantum gravity?  

E-Print Network [OSTI]

The talk is devoted to the "extended phase space" approach to Quantum Geometrodynamics. The premises that have led to the formulation of this approach are briefly reviewed, namely, non-trivial topology of the Universe which implies the absence of asymptotic states, in contrast to situations one usually deals in ordinary quantum field theory; parametrization noninvariance in the Wheeler - DeWitt theory; the problem of time and the absence of dynamical evolution. Then we discuss the main features of the approach: Hamiltonian dynamics in extended phase space, gauge-dependent Schrodinger equation for the wave function of the Universe, the description of quantum Universe from the viewpoint of observers in a wide enough class of reference frames. After all, we analyse problems arising in this approach: the structure of Hilbert space in Quantum Geometrodynamics, the relations between solutions for the wave function of the Universe corresponding to various reference frames, properties of a medium to be necessary to fix a reference frame, the transition to classical limit.

T. P. Shestakova

2008-10-22T23:59:59.000Z

403

The nuclear and extended infrared emission of the Seyfert galaxy NGC 2992 and the interacting system Arp 245  

E-Print Network [OSTI]

We present subarcsecond resolution infrared (IR) imaging and mid-IR spectroscopic observations of the Seyfert 1.9 galaxy NGC 2992, obtained with the Gemini North Telescope and the Gran Telescopio CANARIAS (GTC). The N-band image reveals faint extended emission out to ~3 kpc, and the PAH features detected in the GTC/CanariCam 7.5-13 micron spectrum indicate that the bulk of this extended emission is dust heated by star formation. We also report arcsecond resolution MIR and far-IR imaging of the interacting system Arp 245, taken with the Spitzer Space Telescope and the Herschel Space Observatory. Using these data, we obtain nuclear fluxes using different methods and find that we can only recover the nuclear fluxes obtained from the subarcsecond data at 20-25 micron, where the AGN emission dominates. We fitted the nuclear IR spectral energy distribution of NGC 2992, including the GTC/CanariCam nuclear spectrum (~50 pc), with clumpy torus models. We then used the best-fitting torus model to decompose the Spitzer/...

Garca-Bernete, I; Acosta-Pulido, J A; Alonso-Herrero, A; Snchez-Portal, M; Castillo, M; Pereira-Santaella, M; Esquej, P; Gonzlez-Martn, O; Daz-Santos, T; Roche, P; Fisher, S; Povi?, M; Garca, A M Prez; Valtchanov, I; Packham, C; Levenson, N A

2015-01-01T23:59:59.000Z

404

A Curious Source of Extended X-ray Emission in the Outskirts of Globular Cluster GLIMPSE-C01  

E-Print Network [OSTI]

We report the discovery of an unusual source of extended X-ray emission CXOU J184846.3-013040 (`The Stem') located on the outskirts of the globular cluster GLIMPSE-C01. No point-like source falls within the extended emission which has an X-ray luminosity L_X =10^{32} ergs/s and a physical size of 0.1 pc at the inferred distance to the cluster. These X-ray properties are consistent with the pulsar wind nebula (PWN) of an unseen pulsar located within the 95-percent confidence error contour of unidentified Fermi gamma-ray source 0FGL J1848.6-0138. However, we cannot exclude an alternative interpretation that postulates X-ray emission associated with a bow shock produced from the interaction of the globular cluster and interstellar gas in the Galactic plane. Analysis of the X-ray data reveals that `The Stem' is most significant in the 2-5 keV band, which suggests that the emission may be dominated by non-thermal bremsstrahlung from suprathermal electrons at the bow shock. If the bow shock interpretation is correc...

Mirabal, N

2009-01-01T23:59:59.000Z

405

Optimal life-extending control of a boiler system D. Li, H.J. Marquez, T. Chen and R.K. Gooden  

E-Print Network [OSTI]

Optimal life-extending control of a boiler system D. Li, H.J. Marquez, T. Chen and R.K. Gooden hierarchical LEC structure and apply it to a typical boiler system. There are two damage models

Marquez, Horacio J.

406

The Challenges and Opportunities for Extending Plant Genomics to Climate (2013 DOE JGI Genomics of Energy and Environment 8th Annual User Meeting)  

SciTech Connect (OSTI)

David Weston of Oak Ridge National Laboratory on "The challenges and opportunities for extending plant genomics to climate" at the 8th Annual Genomics of Energy & Environment Meeting on March 27, 2013 in Walnut Creek, Calif.

Weston, David [ORNL

2013-03-01T23:59:59.000Z

407

Extended universal finite-T renormalization of excitations in a class of one-dimensional quantum magnets  

SciTech Connect (OSTI)

Temperature dependencies of gap energies and magnon lifetimes are measured in the quasi-onedimensional S = 1/2 gapped quantum magnets CH32CHNH3CuCL3 (IPA-CuCl3, where IPA denotes isopropyl ammonium) and Cu2Cl4 D8C4SO2 (Sul-Cu2Cl4) using inelastic neutron scattering. The results are compared to those found in literature for S = 1 Haldane spin chain materials and to theoretical calculations for the O3- and ON- quantum nonlinear-models. It is found that when the T = 0 energy gap is used as the temperature scale, all experimental and theoretical curves are identical to within system-dependent but temperature-independent scaling factors of the order of unity. This quasiuniversality extends over a surprising broad T range, at least up to kT ~ 1.5.

Zheludev, Andrey I [ORNL; Garlea, Vasile O [ORNL; Regnault, L.-P. [CEA, Grenoble, France; Manaka, H. [Kagoshima University, Kagoshima JAPAN; Tswelik, A. [National Institute of Standards and Technology (NIST); Chung, J.-H. [National Institute of Standards and Technology (NIST); Fernandez-Baca, Jaime A [ORNL

2008-01-01T23:59:59.000Z

408

Polarized Range-Extended X-Ray Absorption Spectroscopy of Oriented Photosystem Ii Membranes in the S (1) State  

SciTech Connect (OSTI)

Detailed information about the orientation of particular Mn-Mn and Mn-Ca vectors in the oxygen evolving complex (OEC) of the Photosystem II in the S{sub 1} state provide a critical starting point for the analysis of the structural changes in the OEC along the catalytic S{sub i}-state cycle. The method of polarized range-extended EXAFS is an important technical development, that allows: (i) resolution of the 2.7 {angstrom} and 2.8 {angstrom} Mn-Mn interactions; (ii) resolution of 3.2 {angstrom} Mn-Mn and 3.4 {angstrom} Mn-Ca; (iii) determination of 2.7 {angstrom}, 2.8 {angstrom}, 3.2 {angstrom} Mn-Mn and 3.4 {angstrom} Mn-Ca vectors orientation relative to the membrane normal.

Pushkar, Y.; Yano, J.; Glatzel, P.; Messinger, J.; Lewis, A.; Sauer, K.; Bergmann, U.; Yachandra, V.K.

2009-06-05T23:59:59.000Z

409

Development and Deployment of the Extended Reach Sluicing System (ERSS) for Retrieval of Hanford Single Shell Tank Waste. Draft  

SciTech Connect (OSTI)

A history of the evolution and the design development of Extended Reach Sluicer System (ERSS) is presented. Several challenges are described that had to be overcome to create a machine that went beyond the capabilities of prior generation sluicers to mobilize waste in Single Shell Tanks for pumping into Double Shell Tank receiver tanks. Off-the-shelf technology and traditional hydraulic fluid power systems were combined with the custom-engineered components to create the additional functionality of the ERSS, while still enabling it to fit within very tight entry envelope into the SST. Problems and challenges inevitably were encountered and overcome in ways that enhance the state of the art of fluid power applications in such constrained environments. Future enhancements to the ERSS design are explored for retrieval of tanks with different dimensions and internal obstacles.

Bauer, Roger E. [Washington River Protection Systems, Richland, WA (United States); Figley, Reed R. [Washington River Protection Systems, Richland, WA (United States); Innes, A. G. [Washington River Protection Systems, Richland, WA (United States)

2013-11-11T23:59:59.000Z

410

Non-extended phase space thermodynamics of Lovelock AdS black holes in grand canonical ensemble  

E-Print Network [OSTI]

Recently, extended phase space thermodynamics of Lovelock AdS black holes has been of great interest. To provide insight from a different perspective and gain a unified phase transition picture, non-extended phase space thermodynamics of $(n+1)$-dimensional charged topological Lovelock AdS black holes is investigated detailedly in the grand canonical ensemble. Specifically, the specific heat at constant electric potential is calculated and phase transition in the grand canonical ensemble is discussed. To probe the impact of the various parameters, we utilize the control variate method and solve the phase transition condition equation numerically for the case $k=1,-1$. There are two critical points for the case $n=6,k=1$ while there is only one for other cases. For $k=0$, there exists no phase transition point. To figure out the nature of phase transition in the grand canonical ensemble, we carry out an analytic check of the analog form of Ehrenfest equations proposed by Banerjee et al. It is shown that Lovelock AdS black holes in the grand canonical ensemble undergo a second order phase transition. To examine the phase structure in the grand canonical ensemble, we utilize the thermodynamic geometry method and calculate both the Weinhold metric and Ruppeiner metric. It is shown that for both analytic and graphical results that the divergence structure of the Ruppeiner scalar curvature coincides with that of the specific heat. Our research provides one more example that Ruppeiner metric serves as a wonderful tool to probe the phase structures of black holes.

Jie-Xiong Mo; Wen-Biao Liu

2015-03-06T23:59:59.000Z

411

Scale Setting Using the Extended Renormalization Group and the Principle of Maximal Conformality: the QCD Coupling at Four Loops  

SciTech Connect (OSTI)

A key problem in making precise perturbative QCD predictions is to set the proper renormalization scale of the running coupling. The extended renormalization group equations, which express the invariance of physical observables under both the renormalization scale- and scheme-parameter transformations, provide a convenient way for estimating the scale- and scheme-dependence of the physical process. In this paper, we present a solution for the scale-equation of the extended renormalization group equations at the four-loop level. Using the principle of maximum conformality (PMC)/Brodsky-Lepage-Mackenzie (BLM) scale-setting method, all non-conformal {beta}{sub i} terms in the perturbative expansion series can be summed into the running coupling, and the resulting scale-fixed predictions are independent of the renormalization scheme. Different schemes lead to different effective PMC/BLM scales, but the final results are scheme independent. Conversely, from the requirement of scheme independence, one not only can obtain scheme-independent commensurate scale relations among different observables, but also determine the scale displacements among the PMC/BLM scales which are derived under different schemes. In principle, the PMC/BLM scales can be fixed order-by-order, and as a useful reference, we present a systematic and scheme-independent procedure for setting PMC/BLM scales up to NNLO. An explicit application for determining the scale setting of R{sub e{sup +}e{sup -}}(Q) up to four loops is presented. By using the world average {alpha}{sub s}{sup {ovr MS}}(MZ) = 0.1184 {+-} 0.0007, we obtain the asymptotic scale for the 't Hooft associated with the {ovr MS} scheme, {Lambda}{sub {ovr MS}}{sup 'tH} = 245{sub -10}{sup +9} MeV, and the asymptotic scale for the conventional {ovr MS} scheme, {Lambda}{sub {ovr MS}} = 213{sub -8}{sup +19} MeV.

Brodsky, Stanley J.; /SLAC; Wu, Xing-Gang; /SLAC /Chongqing U.

2012-02-16T23:59:59.000Z

412

Recovery helps California company get ahead | Department of Energy  

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

XeroCoat provides as much as a 5-percent increase in energy on a kilowatt-hour basis. A medium-sized air conditioner runs for about one hour on a kilowatt-hour of electricity,...

413

The Extended Mind  

E-Print Network [OSTI]

Where does the mind stop and the rest of the world begin? The question invites two standard replies. Some accept the demarcations of skin and skull, and say that what is outside the body is outside the mind. Others are impressed by arguments...

Clark, Andy; Chalmer, Dave

1998-01-01T23:59:59.000Z

414

Extended gravity from noncommutativity  

E-Print Network [OSTI]

We review the first order theory of gravity (vierbein formulation) on noncommutative spacetime studied in [1, 2]. The first order formalism allows to couple the theory to fermions. This NC action is then reinterpreted (using the Seiberg-Witten map) as a gravity theory on commutative spacetime that contains terms with higher derivatives and higher powers of the curvature and depend on the noncommutativity parameter \\theta. When the noncommutativity is switched off we recover the usual gravity action coupled to fermions. The first nontrival corrections to the usual gravity action coupled to fermions are presented in a manifest Lorentz invariant form.

Paolo Aschieri

2012-07-20T23:59:59.000Z

415

Generalizing Substitution (Extended Abstract)  

E-Print Network [OSTI]

;B ] ? The conversions are: ~ f = [ #22; f ; #17;B ] ? , #22; f = ~ f ? f = ~ f ? #17;A+B ? inl A inl A;HTA , #28; A = #11;A ? inr A;HTA , with the property that [ #17;A ; #28; A ] = #11;A . Say of the (B +H( + TB))-coalgebra (TA; [ (id B +Hinr TA;TB ) ? #11; 1 B ? f ; inr B;H(TA+TB) ] ? (id A + inl TA

Uustalu, Tarmo

416

Monadic Regions [Extended Abstract  

E-Print Network [OSTI]

to manage particular data by one scheme or the other. Cyclone [12] offers multiple forms of memory collection and a simple type system. A separate line of research has investigated mechanisms by which

Fluet, Matthew

417

Extending quantum operations  

SciTech Connect (OSTI)

For a given set of input-output pairs of quantum states or observables, we ask the question whether there exists a physically implementable transformation that maps each of the inputs to the corresponding output. The physical maps on quantum states are trace-preserving completely positive maps, but we also consider variants of these requirements. We generalize the definition of complete positivity to linear maps defined on arbitrary subspaces, then formulate this notion as a semidefinite program, and relate it by duality to approximative extensions of this map. This gives a characterization of the maps which can be approximated arbitrarily well as the restriction of a map that is completely positive on the whole algebra, also yielding the familiar extension theorems on operator spaces. For quantum channel extensions and extensions by probabilistic operations we obtain semidefinite characterizations, and we also elucidate the special case of Abelian inputs or outputs. Finally, revisiting a theorem by Alberti and Uhlmann, we provide simpler and more widely applicable conditions for certain extension problems on qubits, and by using a semidefinite programming formulation we exhibit counterexamples to seemingly reasonable but false generalizations of the Alberti-Uhlmann theorem.

Heinosaari, Teiko [Turku Centre for Quantum Physics, Department of Physics and Astronomy, University of Turku (Finland); Jivulescu, Maria A. [Department of Mathematics, University Politehnica Timisoara, 300006 Timisoara (Romania); Reeb, David; Wolf, Michael M. [Department of Mathematics, Technische Universitaet Muenchen, 85748 Garching (Germany)

2012-10-15T23:59:59.000Z

418

Vici Extended Facility  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500IIVasudha PatriPhotoelectron Spectroscopy of

419

Larned Extended Facility #1  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and Interfaces Sample6, 2011 CERN 73-11Large areaLargefor

420

Leroy Extended Facility #3  

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

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Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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421

Plevna Extended Facility #4  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006Photovoltaic Theory andVelocityPlatinum-Loading

422

Pawhuska Extended Facility  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 TheSteven AshbyDepartment ofGE's E.Gilman

423

Morris Extended Facility  

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

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424

Hillsboro Extended Facility  

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

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425

Ringwood Extended Facility  

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426

Okmulgee Extended Facility  

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

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427

Halstead Extended Facility  

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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky9, 2010 The meeting wasEngineeringDepartment ofAnisotropic

428

Tyro Kansas Extended Facility  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layeredof Energy Two

429

El Reno Extended Facility  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed NewcatalystNeutronEnvironmentZIRKLEEFFECTS OF CHRONICSessionEinsteinPhysicsCleverEl

430

Elk Falls Extended Facility  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia Nanoparticles as

431

Meeker Extended Facility  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces andMapping the NanoscaleMechanicalMedicine High Energy Physics (HEP) HEP

432

Ashton Extended Facility  

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433

Cyril Extended Facility  

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434

Towanda Extended Facility #6  

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435

Coldwater Extended Facility #8  

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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New SubstationClean Communities ofCellulosic Feedstock -Import Costs

436

Cordell Extended Facility  

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437

Extending ALE3D, an Arbitrarily Connected hexahedral 3D Code, to Very Large Problem Size (U)  

SciTech Connect (OSTI)

As the number of compute units increases on the ASC computers, the prospect of running previously unimaginably large problems is becoming a reality. In an arbitrarily connected 3D finite element code, like ALE3D, one must provide a unique identification number for every node, element, face, and edge. This is required for a number of reasons, including defining the global connectivity array required for domain decomposition, identifying appropriate communication patterns after domain decomposition, and determining the appropriate load locations for implicit solvers, for example. In most codes, the unique identification number is defined as a 32-bit integer. Thus the maximum value available is 231, or roughly 2.1 billion. For a 3D geometry consisting of arbitrarily connected hexahedral elements, there are approximately 3 faces for every element, and 3 edges for every node. Since the nodes and faces need id numbers, using 32-bit integers puts a hard limit on the number of elements in a problem at roughly 700 million. The first solution to this problem would be to replace 32-bit signed integers with 32-bit unsigned integers. This would increase the maximum size of a problem by a factor of 2. This provides some head room, but almost certainly not one that will last long. Another solution would be to replace all 32-bit int declarations with 64-bit long long declarations. (long is either a 32-bit or a 64-bit integer, depending on the OS). The problem with this approach is that there are only a few arrays that actually need to extended size, and thus this would increase the size of the problem unnecessarily. In a future computing environment where CPUs are abundant but memory relatively scarce, this is probably the wrong approach. Based on these considerations, we have chosen to replace only the global identifiers with the appropriate 64-bit integer. The problem with this approach is finding all the places where data that is specified as a 32-bit integer needs to be replaced with the 64-bit integer. that need to be replaced. In the rest of this paper we describe the techniques used to facilitate this transformation, issues raised, and issues still to be addressed. This poster will describe the reasons, methods, issues associated with extending the ALE3D code to run problems larger than 700 million elements.

Nichols, A L

2010-12-15T23:59:59.000Z

438

Early-stage star forming cloud cores in GLIMPSE Extended Green Objects (EGOs) as traced by organics pecies  

E-Print Network [OSTI]

In order to investigate the physical and chemical properties of massive star forming cores in early stages, we analyse the excitation and abundance of four organic species, CH3OH, CH3OCH3, HCOOCH3 and CH3CH2CN, toward 29 Extended Green Object (EGO) cloud cores that were observed by our previous single dish spectral line survey. The EGO cloud cores are found to have similar methanol J_3-J_2 rotation temperatures of ~44 K, a typical linear size of ~0.036 pc, and a typical beam averaged methanol abundance of several 10^(-9) (the beam corrected value could reach several 10^(-7)). The abundances of the latter three species, normalized by that of methanol, are found to be correlated also across a large variety of clouds such as EGO cloud cores, hot corinos, massive hot cores and Galactic Center clouds. The chemical properties of the EGO cloud cores lie between that of hot cores and hot corinos. However, the abundances and abundance ratios of the four species can not be satisfactorily explained by recent chemical mo...

Ge, Jixing; Chen, Xi; Takahashi, S

2014-01-01T23:59:59.000Z

439

GLOBAL CORONAL SEISMOLOGY IN THE EXTENDED SOLAR CORONA THROUGH FAST MAGNETOSONIC WAVES OBSERVED BY STEREO SECCHI COR1  

SciTech Connect (OSTI)

We present global coronal seismology for the first time, which allows us to determine inhomogeneous magnetic field strength in the extended corona. From the measurements of the propagation speed of a fast magnetosonic wave associated with a coronal mass ejection (CME) and the coronal background density distribution derived from the polarized radiances observed by the STEREO SECCHI COR1, we determined the magnetic field strengths along the trajectories of the wave at different heliocentric distances. We found that the results have an uncertainty less than 40%, and are consistent with values determined with a potential field model and reported in previous works. The characteristics of the coronal medium we found are that (1) the density, magnetic field strength, and plasma ? are lower in the coronal hole region than in streamers; (2) the magnetic field strength decreases slowly with height but the electron density decreases rapidly so that the local fast magnetosonic speed increases while plasma ? falls off with height; and (3) the variations of the local fast magnetosonic speed and plasma ? are dominated by variations in the electron density rather than the magnetic field strength. These results imply that Moreton and EIT waves are downward-reflected fast magnetosonic waves from the upper solar corona, rather than freely propagating fast magnetosonic waves in a certain atmospheric layer. In addition, the azimuthal components of CMEs and the driven waves may play an important role in various manifestations of shocks, such as type II radio bursts and solar energetic particle events.

Kwon, Ryun-Young; Kramar, Maxim; Wang, Tongjiang; Ofman, Leon [Department of Physics, Institute for Astrophysics and Computational Sciences, Catholic University of America, 620 Michigan Avenue, Washington, DC 20064 (United States); Davila, Joseph M. [NASA Goddard Space Flight Center, Solar Physics Laboratory, Code 671, Greenbelt, MD 20771 (United States); Chae, Jongchul [Astronomy Program, Department of Physics and Astronomy, Seoul National University (Korea, Republic of); Zhang, Jie [School of Physics, Astronomy and Computational Sciences, George Mason University, 4400 University Drive, MSN 6A2, Fairfax, VA 22030 (United States)

2013-10-10T23:59:59.000Z

440

Extending the eigCG algorithm to nonsymmetric Lanczos for linear systems with multiple right-hand sides  

SciTech Connect (OSTI)

The technique that was used to build the EigCG algorithm for sparse symmetric linear systems is extended to the nonsymmetric case using the BiCG algorithm. We show that, similarly to the symmetric case, we can build an algorithm that is capable of computing a few smallest magnitude eigenvalues and their corresponding left and right eigenvectors of a nonsymmetric matrix using only a small window of the BiCG residuals while simultaneously solving a linear system with that matrix. For a system with multiple right-hand sides, we give an algorithm that computes incrementally more eigenvalues while solving the first few systems and then uses the computed eigenvectors to deflate BiCGStab for the remaining systems. Our experiments on various test problems, including Lattice QCD, show the remarkable ability of EigBiCG to compute spectral approximations with accuracy comparable to that of the unrestarted, nonsymmetric Lanczos. Furthermore, our incremental EigBiCG followed by appropriately restarted and deflated BiCGStab provides a competitive method for systems with multiple right-hand sides.

Abdel-Rehim, A. M.; Stathopoulos, Andreas; Orginos, Kostas

2014-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Extended universal finite-T renormalization of excitations in a class of one-dimensional quantum magnets.  

SciTech Connect (OSTI)

Temperature dependencies of gap energies and magnon lifetimes are measured in the quasi-one-dimensional S=1/2 gapped quantum magnets (CH{sub 3}){sub 2}CHNH{sub 3}CuCL{sub 3} (IPA-CuCl{sub 3}, where IPA denotes isopropyl ammonium) and Cu{sub 2}Cl{sub 4} {center_dot} D{sub 8}C{sub 4}SO{sub 2} (Sul-Cu{sub 2}Cl{sub 4}) using inelastic neutron scattering. The results are compared to those found in literature for S=1 Haldane spin chain materials and to theoretical calculations for the O(3)- and O(N)- quantum nonlinear {delta}-models. It is found that when the T=0 energy gap {Delta} is used as the temperature scale, all experimental and theoretical curves are identical to within system-dependent but temperature-independent scaling factors of the order of unity. This quasi-universality extends over a surprising broad T range, at least up to {kappa}T {approx} 1.5{Delta}.

Zheludev, Andrey I [ORNL; Garlea, Vasile O [ORNL; Regnault, L.-P. [CEA, Grenoble, France; Manaka, H. [Kagoshima University, Kagoshima JAPAN; Tswelik, A. [National Institute of Standards and Technology (NIST)

2008-01-01T23:59:59.000Z

442

All-wavelength Extended Groth strip International Survey: the environment of X-ray sources at z~1  

E-Print Network [OSTI]

We explore the environment of z~1 AGN using a sample of 53 spectroscopically identified X-ray sources in the All-wavelength Extended Groth strip International Survey. We quantify the local density in the vicinity of an X-ray source by measuring the projected surface density of spectroscopically identified optical galaxies within a radius defined by the 3rd nearest neighbour. Our main result is that X-ray selected AGN at z~1 avoid underdense regions at the 99.89% confidence level. Moreover, although we find that the overall population shares the same (rich) environment with optical galaxies of similar U-B and M_B, there is also tentative evidence (96%) that AGN with blue colors (U-Benvironments compared to optical galaxies. We argue that the results above are a consequence of the whereabouts of massive galaxies, capable of hosting supermassive black holes at their centers, with available cold gas reservoirs, the fuel for AGN activity. At z~1 an increasing fraction of such systems are found in dense regions.

A. Georgakakis; K. Nandra; E. S. Laird; M. C. Cooper; B. F. Gerke; J. A. Newman; D. J. Croton; M. Davis; S. M. Faber; A. L. Coil

2006-07-12T23:59:59.000Z

443

Extended Virtual Spring Mesh (EVSM): The Distributed Self-Organizing Mobile Ad Hoc Network for Area Exploration  

SciTech Connect (OSTI)

Mobile Ad hoc NETworks (MANETs) are distributed self-organizing networks that can change locations and configure themselves on the fly. This paper focuses on an algorithmic approach for the deployment of a MANET within an enclosed area, such as a building in a disaster scenario, which can provide a robust communication infrastructure for search and rescue operations. While a virtual spring mesh (VSM) algorithm provides scalable, self-organizing, and fault-tolerant capabilities required by aMANET, the VSM lacks the MANET's capabilities of deployment mechanisms for blanket coverage of an area and does not provide an obstacle avoidance mechanism. This paper presents a new technique, an extended VSM (EVSM) algorithm that provides the following novelties: (1) new control laws for exploration and expansion to provide blanket coverage, (2) virtual adaptive springs enabling the mesh to expand as necessary, (3) adapts to communications disturbances by varying the density and movement of mobile nodes, and (4) new metrics to assess the performance of the EVSM algorithm. Simulation results show that EVSM provides up to 16% more coverage and is 3.5 times faster than VSM in environments with eight obstacles.

Kurt Derr

2011-12-01T23:59:59.000Z

444

Could gauge gravitational degrees of freedom play the role of environment in "extended phase space" version of quantum geometrodynamics?  

E-Print Network [OSTI]

In the context of the recently proposed formulation of quantum geometrodynamics in extended phase space we discuss the problem how the behavior of the Universe, initially managed by quantum laws, has become classical. In this version of quantum geometrodynamics we quantize gauge gravitational degrees of freedom on an equal basis with physical degrees of freedom. As a consequence of this approach, a wave function of the Universe depends not only on physical fields but also on gauge degrees of freedom. From this viewpoint, one should regard the physical Universe as a subsystem whose properties are formed in interaction with the subsystem of gauge degrees of freedom. We argue that the subsystem of gauge degrees of freedom may play the role of environment, which, being taken into account, causes the density matrix to be diagonal. We show that under physically reasonable fixing of gauge condition the density matrix describing the physical subsystem of the Universe may have a Gaussian peak in some variable, but it could take the Gaussian form only within a spacetime region where a certain gauge condition is imposed. If spacetime manifold consists of regions covered by different coordinate charts the Universe cannot behave in a classical manner nearby borders of these regions. Moreover, in this case the Universe could not stay in the same quantum state, but its state would change in some irreversible way.

T. P. Shestakova

2003-09-24T23:59:59.000Z

445

Core-crust transition properties of neutron stars within systematically varied extended relativistic mean-field model  

E-Print Network [OSTI]

The model dependence and the symmetry energy dependence of the core-crust transition properties for the neutron stars are studied using three different families of systematically varied extended relativistic mean field model. Several forces within each of the families are so considered that they yield wide variations in the values of the nuclear symmetry energy $a_{\\rm sym}$ and its slope parameter $L$ at the saturation density. The core-crust transition density is calculated using a method based on random-phase-approximation. The core-crust transition density is strongly correlated, in a model independent manner, with the symmetry energy slope parameter evaluated at the saturation density. The pressure at the transition point dose not show any meaningful correlations with the symmetry energy parameters at the saturation density. At best, pressure at the transition point is correlated with the symmetry energy parameters and their linear combination evaluated at the some sub-saturation density. Yet, such correlations might not be model independent. The correlations of core-crust transition properties with the symmetry energy parameter are also studied by varying the symmetry energy within a single model. The pressure at the transition point is correlated once again with the symmetry energy parameter at the sub-saturation density.

A. Sulaksono; Naosad Alam; B. K. Agrawal

2014-11-03T23:59:59.000Z

446

A periodic Energy Decomposition Analysis (pEDA) method for the Investigation of Chemical Bonding in Extended Systems  

E-Print Network [OSTI]

The development and first applications of a new periodic energy decomposition analysis (pEDA) scheme for extended systems based on the Kohn-Sham approach to density functional theory are described. The pEDA decomposes the binding energy between two fragments (e.g. the adsorption energy of a molecule on a surface) into several well-defined terms: preparation, electrostatic and dispersion interaction, Pauli repulsion and orbital relaxation energies. The pEDA presented here for an AO-based implementation can handle restricted and unrestricted fragments for 0D to 3D systems considering periodic boundary conditions with and without the determination of fragment occupations. For the latter case, reciprocal space sampling is enabled. The new method gives comparable results to established schemes for molecular systems and shows good convergence with respect to the basis set (TZ2P), the integration accuracy and k-space sampling. Four typical bonding scenarios for surface adsorbate complexes were chosen to highlight th...

Raupach, Marc

2015-01-01T23:59:59.000Z

447

Standard guide for evaluation of materials used in extended service of interim spent nuclear fuel dry storage systems  

E-Print Network [OSTI]

1.1 Part of the total inventory of commercial spent nuclear fuel (SNF) is stored in dry cask storage systems (DCSS) under licenses granted by the U.S. Nuclear Regulatory Commission (NRC). The purpose of this guide is to provide information to assist in supporting the renewal of these licenses, safely and without removal of the SNF from its licensed confinement, for periods beyond those governed by the term of the original license. This guide provides information on materials behavior under conditions that may be important to safety evaluations for the extended service of the renewal period. This guide is written for DCSS containing light water reactor (LWR) fuel that is clad in zirconium alloy material and stored in accordance with the Code of Federal Regulations (CFR), at an independent spent-fuel storage installation (ISFSI). The components of an ISFSI, addressed in this document, include the commercial SNF, canister, cask, and all parts of the storage installation including the ISFSI pad. The language of t...

American Society for Testing and Materials. Philadelphia

2010-01-01T23:59:59.000Z

448

Energy-dependent evolution in IC10 X-1: hard evidence for an extended corona, and implications  

E-Print Network [OSTI]

We have analyzed a ~130 ks XMM-Newton observation of the dynamically confirmed black hole + Wolf-Rayet (BH+WR) X-ray binary (XB) IC10 X-1, covering ~1 orbital cycle. This system experiences periodic intensity dips every ~35 hours. We find that energy-independent evolution is rejected at a >5 sigma level. The spectral and timing evolution of IC10 X-1 are best explained by a compact disk blackbody and an extended Comptonized component, where the thermal component is completely absorbed and the Comptonized component is partially covered during the dip. We consider three possibilities for the absorber: cold material in the outer accretion disk, as is well documented for Galactic neutron star (NS) XBs at high inclination; a stream of stellar wind that is enhanced by traveling through the L1 point; and a spherical wind. We estimated the corona radius (r_ADC) for IC10 X-1 from the dip ingress to be ~1 E+6 km, assuming absorption from the outer disk, and found it to be consistent with the relation between r_m ADC and...

Barnard, R; Prestwich, A F; Stevens, I R; Clark, J S; Kolb, U C

2014-01-01T23:59:59.000Z

449

Developing Fully Coupled Dynamical Reactor Core Isolation System Models in RELAP-7 for Extended Station Black-Out Analysis  

SciTech Connect (OSTI)

The reactor core isolation cooling (RCIC) system in a boiling water reactor (BWR) provides makeup water to the reactor vessel for core cooling when the main steam lines are isolated and the normal supply of water to the reactor vessel is lost. It was one of the very few safety systems still available during the Fukushima Daiichi accidents after the tsunamis hit the plants and the system successfully delayed the core meltdown for a few days for unit 2 & 3. Therefore, detailed models for RCIC system components are indispensable to understand extended station black-out accidents (SBO) for BWRs. As part of the effort to develop the new generation reactor system safety analysis code RELAP-7, major components to simulate the RCIC system have been developed. This paper describes the models for those components such as turbine, pump, and wet well. Selected individual component test simulations and a simplified SBO simulation up to but before core damage is presented. The successful implementation of the simplified RCIC and wet well models paves the way to further improve the models for safety analysis by including more detailed physical processes in the near future.

Haihua Zhao; Ling Zou; Hongbin Zhang; David Andrs; Richard Martineau

2014-04-01T23:59:59.000Z

450

Deep optical spectroscopy of extended Lyman alpha emission around three radio-quiet z=4.5 quasars  

E-Print Network [OSTI]

We report the first results of a spectroscopic search for Lyman alpha, envelopes around three z=4.5 radio-quiet quasars. Our observational strategy uses the FORS2 spectrograph attached to the UT1 of the Very Large Telescope (VLT) in the multi-slit mode. This allows us to observe simultaneously the quasars and several PSF stars. The spectra of the latter are used to remove the point-like quasar from the data, and to unveil the faint underlying Lyman alpha, envelopes associated with the quasars with unprecedented depth. We clearly detect an envelope around two of the three quasars. These envelopes measure respectively 10" and 13" in extent (i.e. 67 kpc and 87 kpc). This is 5 to 10 times larger than predicted by the models of Haiman & Rees (2001) and up to 100 times fainter. Our observations better agree with models involing a clumpy envelope as in Alam & Miralda-Escude (2002) or Chelouche et al. (2008). We find that the brighter quasars also have the brighter envelopes but that the extend of the envelopes does not depend on the quasar luminosity. Although our results are based on only two objects with a detected Lyman alpha, envelope, the quality of the spatial deblending of the spectra lends considerable hope to estimate the luminosity function and surface brightness profiles of high redshift Lyman alpha, envelopes down to F= 2-3 10^{-21} erg/s/cm^2/A. We find that the best strategy to carry out such a project is to obtain both narrow-band images and deep slit-spectra.

F. Courbin; P. North; A. Eigenbrod; D. Chelouche

2008-03-17T23:59:59.000Z

451

Extended x-ray absorption fine structure studies on the iron-containing subunit of ribunucleotide reductase from Escherichia coli  

SciTech Connect (OSTI)

Iron K-edge X-ray absorption spectra were obtained on the protein B2, the small subunit of ribonucleotide reductase from Escherichia coli. Protein B2 contains a binuclear iron center with many properties in common with the iron center of oxidized hemerythrins. The extended x-ray absorption fine structure (EXAFS) measurements on protein B2 were analyzed and compared with published data for oxyhemerythrin. In protein B2 there are, in the first coordination shell around each Fe atom, five or six oxygen or nitrogen atoms that are directly coordinated ligands. In oxyhemerythrin there are six ligands to each iron. As in oxyhemerythrin, one of the ligands in the first shell of protein B2 is at a short distance, about 1.78 A, confirming the existence of a ..mu..-oxo bridge. The other atoms of the first shell are at an average distance of 2.04 A, which is about 0.1 A shorter than in oxyhemerythrin. In protein B2 the Fe-Fe distance is in the range 3.26-3.48 A, and the bridging angle falls between 130 and 150/sup 0/. On the basis of these data, there is no direct evidence for any histidine ligands in protein B2, but the noise level leaves way for the possibility of a maximum of about three histidines for each Fe pair. The x-ray absorption spectrum of a hydroxyurea-treated sample was not significantly different from that of the native protein B2, which implies that no significant alteration in the structure of the iron site occurs upon destruction of the tyrosine radical.

Bunker, G.; Petersson, L.; Sjoeberg, B.M.; Sahlin, M.; Chance, M.; Chance, B.; Ehrenberg, A.

1987-07-28T23:59:59.000Z

452

THE SPACE DENSITY OF EXTENDED ULTRAVIOLET (XUV) DISKS IN THE LOCAL UNIVERSE AND IMPLICATIONS FOR GAS ACCRETION ONTO GALAXIES  

SciTech Connect (OSTI)

We present results of the first unbiased search for extended ultraviolet (XUV)-disk galaxies undertaken to determine the space density of such galaxies. Our sample contains 561 local (0.001 < z < 0.05) galaxies that lie in the intersection of available Galaxy Evolution Explorer (GALEX) deep imaging (exposure time >1.5 x 10{sup 4} s) and Sloan Digital Sky Survey DR7 footprints. We explore modifications to the standard classification scheme for our sample that includes both disk- and bulge-dominated galaxies. Visual classification of each galaxy in the sample reveals an XUV-disk frequency of up to 20% for the most nearby portion of our sample. On average over the entire sample (out to z = 0.05) the frequency ranges from a hard limit of 4%-14%. The GALEX imaging allows us to detect XUV disks beyond 100 Mpc. The XUV regions around XUV-disk galaxies are consistently bluer than the main bodies. We find a surprisingly high frequency of XUV emission around luminous red (NUV-r > 5) and green valley (3 < NUV-r < 5) galaxies. The XUV-disk space density in the local universe is >(1.5-4.2) x 10{sup -3} Mpc{sup -3}. Using the XUV emission as an indicator of recent gas accretion, we estimate that the cold gas accretion rate onto these galaxies is >(1.7-4.6) x 10{sup -3} M{sub sun} Mpc{sup -3} yr{sup -1}. The number of XUV disks in the green valley and the estimated accretion rate onto such galaxies points to the intriguing possibility that 7%-18% of galaxies in this population are transitioning away from the red sequence.

Lemonias, Jenna J.; Schiminovich, David [Department of Astronomy, Columbia University, New York, NY 10027 (United States); Thilker, David; Bianchi, Luciana [Center for Astrophysical Sciences, Johns Hopkins University, Baltimore, MD 21218 (United States); Wyder, Ted K.; Martin, D. Christopher [California Institute of Technology, Pasadena, CA 91125 (United States); Seibert, Mark; Madore, Barry F. [Observatories of the Carnegie Institution of Washington, Pasadena, CA 91101 (United States); Treyer, Marie A. [Laboratoire d'Astrophysique de Marseille, F-13376 Marseille (France); Heckman, Timothy M. [Department of Physics and Astronomy, Johns Hopkins University, Homewood Campus, Baltimore, MD 21218 (United States); Rich, R. Michael, E-mail: jenna@astro.columbia.edu [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States)

2011-06-01T23:59:59.000Z

453

Changing the Hilbert space structure as a consequence of gauge transformations in "extended phase space" version of quantum geometrodynamics  

E-Print Network [OSTI]

In the earlier works on quantum geometrodynamics in extended phase space it has been argued that a wave function of the Universe should satisfy a Schrodinger equation. Its form, as well as a measure in Schrodinger scalar product, depends on a gauge condition (a chosen reference frame). It is known that the geometry of an appropriate Hilbert space is determined by introducing the scalar product, so the Hilbert space structure turns out to be in a large degree depending on a chosen gauge condition. In the present work we analyse this issue from the viewpoint of the path integral approach. We consider how the gauge condition changes as a result of gauge transformations. In this respect, three kinds of gauge transformations can be singled out: Firstly, there are residual gauge transformations, which do not change the gauge condition. The second kind is the transformations whose parameters can be related by homotopy. Then the change of gauge condition could be described by smoothly changing function. In particular, in this context time dependent gauges could be discussed. We also suggest that this kind of gauge transformations leads to a smooth changing of solutions to the Schrodinger equation. The third kind of the transformations includes those whose parameters belong to different homotopy classes. They are of the most interest from the viewpoint of changing the Hilbert space structure. In this case the gauge condition and the very form of the Schrodinger equation would change in discrete steps when we pass from a spacetime region with one gauge condition to another region with another gauge condition. In conclusion we discuss the relation between quantum gravity and fundamental problems of ordinary quantum mechanics.

T. P. Shestakova

2005-12-09T23:59:59.000Z

454

Fermi-LAT Discovery of Extended Gamma-Ray Emission in the Direction of Supernova Remnant W51C  

SciTech Connect (OSTI)

The discovery of bright gamma-ray emission coincident with supernova remnant (SNR) W51C is reported using the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope. W51C is a middle-aged remnant ({approx}10{sup 4} yr) with intense radio synchrotron emission in its shell and known to be interacting with a molecular cloud. The gamma-ray emission is spatially extended, broadly consistent with the radio and X-ray extent of SNR W51C. The energy spectrum in the 0.2-50 GeV band exhibits steepening toward high energies. The luminosity is greater than 1 x 10{sup 36} erg s{sup -1} given the distance constraint of D > 5.5 kpc, which makes this object one of the most luminous gamma-ray sources in our Galaxy. The observed gamma-rays can be explained reasonably by a combination of efficient acceleration of nuclear cosmic rays at supernova shocks and shock-cloud interactions. The decay of neutral p mesons produced in hadronic collisions provides a plausible explanation for the gamma-ray emission. The product of the average gas density and the total energy content of the accelerated protons amounts to {bar n}{sub H} W{sub p} {approx_equal} 5 x 10{sup 51} (D/6 kpc){sup 2} erg cm{sup -3}. Electron density constraints from the radio and X-ray bands render it difficult to explain the LAT signal as due to inverse Compton scattering. The Fermi LAT source coincident with SNR W51C sheds new light on the origin of Galactic cosmic rays.

Abdo, A.A.; /Naval Research Lab, Wash., D.C. /Federal City Coll.; Ackermann, M.; /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept.; Ajello, M.; /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept.; Baldini, L.; /INFN, Pisa; Ballet, J.; /DAPNIA, Saclay; Barbiellini, G.; /INFN, Trieste /Trieste U.; Baring, M.G.; /Rice U.; Bastieri, D.; /INFN, Padua /Padua U.; Baughman, B.M.; /Ohio State U.; Bechtol, K.; /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept.; Bellazzini, R.; /INFN, Pisa; Berenji, B.; /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept.; Blandford, R.D.; /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept.; Bloom, E.D.; /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept.; Bonamente, E.; /INFN, Perugia /Perugia U.; Borgland, A.W.; /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept.; Bouvier, A.; /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept.; Bregeon, J.; /INFN, Pisa; Brez, A.; /INFN, Pisa; Brigida, M.; /Bari U. /INFN, Bari; Bruel, P.; /Ecole Polytechnique /Washington U., Seattle /Padua U. /Bari U. /INFN, Bari /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept. /IASF, Milan /Milan Polytechnic /DAPNIA, Saclay /INFN, Perugia /Perugia U. /NASA, Goddard /NASA, Goddard /CSST, Baltimore /Naval Research Lab, Wash., D.C. /George Mason U. /NASA, Goddard /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept. /INFN, Perugia /Perugia U. /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept. /Montpellier U. /Sonoma State U. /Stockholm U. /Stockholm U., OKC /ASDC, Frascati /Naval Research Lab, Wash., D.C. /INFN, Trieste /Bari U. /INFN, Bari /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept. /UC, Santa Cruz /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept. /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept. /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept. /CENBG, Gradignan /CENBG, Gradignan /Montpellier U. /Bari U. /INFN, Bari /Ecole Polytechnique /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept. /Ecole Polytechnique; /more authors..

2012-03-30T23:59:59.000Z

455

2514 IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 43, NO. 11, NOVEMBER 2008 Techniques to Extend Canary-Based Standby VDD  

E-Print Network [OSTI]

2514 IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 43, NO. 11, NOVEMBER 2008 Techniques to Extend in both active and standby mode. For battery-constrained devices, the reduc- tion of standby leakage power is especially important for longer battery life. Since SRAM/Cache is the largest component in many digital

Calhoun, Benton H.

456

Oracle Spatial Data Option Spatial Cartridge Oracle8i SpatialIBM ESRI DB2 Spatial ExtenderInformix Informix Spatial  

E-Print Network [OSTI]

; ---- Oracle Spatial Data Option Spatial Cartridge Oracle8i SpatialIBM ESRI DB2 Spatial ExtenderInformix Informix Spatial Datablade Oracle Oracle8i Spatial Oracle Spatial ----SDO_GEOMETRY SDO_GEOMETRY OracleWeb-Based Three-Dimensional Geo-Referenced Visualization, in Proceedings of International Conference of Spatial

Li, Xiang

457

Extending the Domain of Comparative Genomics The comparative approach to Genomics is a major success at present and due to the continued  

E-Print Network [OSTI]

Extending the Domain of Comparative Genomics The comparative approach to Genomics is a major success at present and due to the continued accumulation of genomes, the demand for such methods will only from non-genes. But the comparative approach will eventually dominate as the number fo genomes become

Goldschmidt, Christina

458

THE ChaMP EXTENDED STELLAR SURVEY (ChESS): PHOTOMETRIC AND SPECTROSCOPIC PROPERTIES OF SERENDIPITOUSLY DETECTED STELLAR X-RAY SOURCES1  

E-Print Network [OSTI]

as counterparts to sources in the ROSAT All Sky Survey and the more distant stars detected in deep Chandra and XMM. Silverman9 Received 2008 March 16; accepted 2008 May 15 ABSTRACT We present 348 X-ray-emitting stars identified from correlating the Extended Chandra Multiwavelength Project (ChaMP), a wide-area serendipitous

Green, Paul

459

JOURNAL OF GEOPHYSICAL RESEARCH: SPACE PHYSICS, VOL. 118, 77837797, doi:10.1002/2013JA019337, 2013 Extended lateral heating of the nighttime ionosphere by ground-based  

E-Print Network [OSTI]

experiments are performed with the 21.4 kHz, 424 kW VLF transmitter NPM in Lualualei, Hawaii, and physical effects of the NPM transmissions are studied with a subionospherically propagating VLF probe signal but rather appear to be the result of scattering from extended lateral heating of the ionosphere by the NPM

460

Solid-State Nuclear Magnetic Resonance Evidence for an Extended Strand Conformation of the Membrane-Bound HIV-1 Fusion Peptide  

E-Print Network [OSTI]

Solid-State Nuclear Magnetic Resonance Evidence for an Extended Strand Conformation of the Membrane-Bound HIV-1 Fusion Peptide Jun Yang, Charles M. Gabrys, and David P. Weliky* Department of ChemistryVed May 4, 2001 ABSTRACT: Solid-state nuclear magnetic resonance (NMR) spectroscopy was applied

Weliky, David

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Highly specific and sensitive non-enzymatic determination of uric acid in serum and urine by extended gate field effect transistor sensors  

E-Print Network [OSTI]

by extended gate field effect transistor sensors Weihua Guan a,n , Xuexin Duan a , Mark A. Reed a unsuitable to be used for point of care testing. Electrochemical techniques for UA detection have attracted, along with high selectivity and sensitiv- ity (Xue et al., 2011). So far the electrochemical UA

Reed, Mark

462

The worldwide demand for green energy systems is evident. In this context, wind energy converters will play a paramount role. Extending the service life of a  

E-Print Network [OSTI]

ABSTRACT The worldwide demand for green energy systems is evident. In this context, wind energy converters will play a paramount role. Extending the service life of a wind energy converter translates and operation of the wind energy converters make it beneficial to know the structural condition

Stanford University

463

This paper extends the token flow model of Buck and Lee ([1],[2]), an analytical model for the behavior of dataflow  

E-Print Network [OSTI]

this syn- chronous dataflow (SDF) paradigm. Since many digital signal processing algorithms have little to no data-depen- dent decision-making, SDF-based tools, and tools based on dataflow languages with SDF. Despite its limita- tions, SDF has some very desirable properties. It is there- fore desirable to extend

464

Extending Exhaust Gas Recirculation Limits in Diesel Engines Robert M. Wagner, Johney B. Green, Jr., John M. Storey, and C. Stuart Daw  

E-Print Network [OSTI]

1 Extending Exhaust Gas Recirculation Limits in Diesel Engines Robert M. Wagner, Johney B. Green) for reduced nitro- gen oxide emissions from diesel engines. The research objective is to develop fundamental in- formation about the relationship between EGR parameters and diesel combustion instability

Tennessee, University of

465

A DEEP SEARCH FOR EXTENDED RADIO CONTINUUM EMISSION FROM DWARF SPHEROIDAL GALAXIES: IMPLICATIONS FOR PARTICLE DARK MATTER  

SciTech Connect (OSTI)

We present deep radio observations of four nearby dwarf spheroidal (dSph) galaxies, designed to detect extended synchrotron emission resulting from weakly interacting massive particle (WIMP) dark matter annihilations in their halos. Models by Colafrancesco et al. (CPU07) predict the existence of angularly large, smoothly distributed radio halos in such systems, which stem from electron and positron annihilation products spiraling in a turbulent magnetic field. We map a total of 40.5 deg{sup 2} around the Draco, Ursa Major II, Coma Berenices, and Willman 1 dSphs with the Green Bank Telescope (GBT) at 1.4 GHz to detect this annihilation signature, greatly reducing discrete-source confusion using the NVSS catalog. We achieve a sensitivity of {sigma}{sub sub} {approx}< 7 mJy beam{sup -1} in our discrete source-subtracted maps, implying that the NVSS is highly effective at removing background sources from GBT maps. For Draco we obtained approximately concurrent Very Large Array observations to quantify the variability of the discrete source background, and find it to have a negligible effect on our results. We construct radial surface brightness profiles from each of the subtracted maps, and jackknife the data to quantify the significance of the features therein. At the {approx}10' resolution of our observations, foregrounds contribute a standard deviation of 1.8 mJy beam{sup -1} {<=} {sigma}{sub ast} {<=} 5.7 mJy beam{sup -1} to our high-latitude maps, with the emission in Draco and Coma dominated by foregrounds. On the other hand, we find no significant emission in the Ursa Major II and Willman 1 fields, and explore the implications of non-detections in these fields for particle dark matter using the fiducial models of CPU07. For a WIMP mass M{sub {chi}} = 100 GeV annihilating into b b-bar final states and B = 1 {mu}G, upper limits on the annihilation cross-section for Ursa Major II and Willman I are log (({sigma}v){sub {chi}}, cm{sup 3} s{sup -1}) {approx}< -25 for the preferred set of charged particle propagation parameters adopted by CPU07; this is comparable to that inferred at {gamma}-ray energies from the two-year Fermi Large Area Telescope data. We discuss three avenues for improving the constraints on ({sigma}v){sub {chi}} presented here, and conclude that deep radio observations of dSphs are highly complementary to indirect WIMP searches at higher energies.

Spekkens, Kristine [Department of Physics, Royal Military College of Canada, P.O. Box 17000, Station Forces, Kingston, Ontario K7K 7B4 (Canada); Mason, Brian S. [National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903-2475 (United States); Aguirre, James E. [Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104 (United States); Nhan, Bang, E-mail: kristine.spekkens@rmc.ca [Department of Astrophysical and Planetary Sciences, University of Colorado, 391 UCB, Boulder, CO 80309 (United States)

2013-08-10T23:59:59.000Z

466

S. 737: A Bill to extend the deadlines applicable to certain hydroelectric projects, and for other purposes. Introduced in the Senate of the United States, One Hundred Fourth Congress, First session  

SciTech Connect (OSTI)

This bill was proposed to extend the deadlines applicable to certain hydroelectric projects, and for other purposes. The bill proposes extending the deadlines applying to certain hydroelectric projects in West Virginia, Kentucky, Washington, Oregon, and Arkansas. It proposes limited exemptions for licensing provisions for a power transmission project in New Mexico, extends Alaska`s state jurisdiction over small hydroelectric projects in the state, and amends the jurisdiction of FERC for licensing fresh water hydroelectric projects in Hawaii.

NONE

1995-12-31T23:59:59.000Z

467

Transformation of the extended gamma function ? 2,0 0,2 [(B,X)] with applications to astrophysical thermonuclear functions  

E-Print Network [OSTI]

Two representations of the extended gamma functions ? 2,0 0,2 [(b,x)] are proved. These representations are exploited to find a transformation relation between two Foxs H-functions. These results are used to solve Foxs H-function in terms of Meijers G-function for certain values of the parameters. A closed form representation of the kernel of the Bessel type integral transform is also proved. 1.

M. Aslam Chaudhry

1999-01-01T23:59:59.000Z

468

Computation of the spectrum of spatial Lyapunov exponents for the spatially extended beam-plasma systems and electron-wave devices  

E-Print Network [OSTI]

The spectrum of Lyapunov exponents is powerful tool for the analysis of the complex system dynamics. In the general framework of nonlinear dynamical systems a number of the numerical technics have been developed to obtain the spectrum of Lyapunov exponents for the complex temporal behavior of the systems with a few degree of freedom. Unfortunately, these methods can not apply directly to analysis of complex spatio-temporal dynamics in plasma devices which are characterized by the infinite phase space, since they are the spatially extended active media. In the present paper we propose the method for the calculation of the spectrum of the spatial Lyapunov exponents (SLEs) for the spatially extended beam-plasma systems. The calculation technique is applied to the analysis of chaotic spatio-temporal oscillations in three different beam-plasma model: (1) simple plasma Pierce diode, (2) coupled Pierce diodes, and (3) electron-wave system with backward electromagnetic wave. We find an excellent agreement between the system dynamics and the behavior of the spectrum of the spatial Lyapunov exponents. Along with the proposed method, the possible problems of SLEs calculation are also discussed. It is shown that for the wide class of the spatially extended systems the set of quantities included in the system state for SLEs calculation can be reduced using the appropriate feature of the plasma systems.

Alexander E. Hramov; Alexey A. Koronovskii; Vladimir A. Maximenko; Olga I. Moskalenko

2013-02-17T23:59:59.000Z

469

Wavelength-extended photovoltaic infrared photodetectors Yan-Feng Lao, P. K. D. D. P. Pitigala, A. G. Unil Perera, L. H. Li, S. P. Khanna, and E. H. Linfield  

E-Print Network [OSTI]

Wavelength-extended photovoltaic infrared photodetectors Yan-Feng Lao, P. K. D. D. P. Pitigala, A Publishing Articles you may be interested in Photovoltaic infrared detection with p-type graded barrier://scitation.aip.org/termsconditions. Downloaded to IP: 131.96.4.179 On: Mon, 31 Mar 2014 16:28:42 #12;Wavelength-extended photovoltaic infrared

Perera, A. G. Unil

470

Structure of the Brachydanio Rerio Polo-Like Kinase 1 (Plk1) Catalytic Domain in Complex With An Extended Inhibitor Targeting the Adaptive Pocket of the Enzyme  

SciTech Connect (OSTI)

Polo-like kinase 1 (Plk1) is a member of the Polo-like kinase family of serine/threonine kinases involved in the regulation of cell-cycle progression and cytokinesis and is an attractive target for the development of anticancer therapeutics. The catalytic domain of this enzyme shares significant primary amino-acid homology and structural similarity with another mitotic kinase, Aurora A. While screening an Aurora A library of ATP-competitive compounds, a urea-containing inhibitor with low affinity for mouse Aurora A but with submicromolar potency for human and zebrafish Plk1 (hPlk1 and zPlk1, respectively) was identified. A crystal structure of the zebrafish Plk1 kinase domain-inhibitor complex reveals that the small molecule occupies the purine pocket and extends past the catalytic lysine into the adaptive region of the active site. Analysis of the structures of this protein-inhibitor complex and of similar small molecules cocrystallized with other kinases facilitates understanding of the specificity of the inhibitor for Plk1 and documents for the first time that Plk1 can accommodate extended ATP-competitive compounds that project toward the adaptive pocket and help the enzyme order its activation segment.

Elling, R.A.; Fucini, R.V.; Hanan, E.J.; Barr, K.J.; Zhu, J.; Paulvannan, K.; Yang, W.; Romanowski, M.J.

2009-05-18T23:59:59.000Z

471

A unified picture for low-luminosity and long gamma-ray bursts based on the extended progenitor of llgrb 060218/SN 2006aj  

E-Print Network [OSTI]

The relation between long gamma-ray bursts (LGRBs) and low-luminosity GRBs (llgrbs) is a long standing puzzle -- on the one hand their high energy emission properties are fundamentally different, implying a different gamma-ray source, yet both are associated with similar supernovae of the same peculiar type (broad-line Ic), pointing at a similar progenitor and a similar explosion mechanism. Here we analyze the multi-wavelength data of the particularly well-observed SN 2006aj, associated with llgrb 060218, finding that its progenitor star is sheathed in an extended ($>100R_\\odot$), low-mass ($\\sim 0.01M_\\odot$) envelope. This progenitor structure implies that the gamma-ray emission in this llgrb is generated by a mildly relativistic shock breakout. It also suggests a unified picture for llgrbs and LGRBs, where the key difference is the existence of an extended low-mass envelope in llgrbs and its absence in LGRBs. The same engine, which launches a relativistic jet, can drive the two explosions, but, while in LG...

Nakar, Ehud

2015-01-01T23:59:59.000Z

472

Extended Optical Model Analyses of Elastic Scattering, Direct Reaction, and Fusion Cross Sections for the 9Be + 208Pb System at Near-Coulomb-Barrier Energies  

E-Print Network [OSTI]

Based on the extended optical model approach in which the polarization potential is decomposed into direct reaction (DR) and fusion parts, simultaneous $\\chi^{2}$ analyses are performed for elastic scattering, DR, and fusion cross section data for the $^{9}$Be+$^{208}$Pb system at near-Coulomb-barrier energies. Similar $\\chi^{2}$ analyses are also performed by only taking into account the elastic scattering and fusion data as was previously done by the present authors, and the results are compared with those of the full analysis including the DR cross section data as well. We find that the analyses using only elastic scattering and fusion data can produce very consistent and reliable predictions of cross sections particularly when the DR cross section data are not complete. Discussions are also given on the results obtained from similar analyses made earlier for the $^{9}$Be+$^{209}$Bi system.

W. Y. So; S. W. Hong; B. T. Kim; T. Udagawa

2005-09-27T23:59:59.000Z

473

Extended Optical Model Analyses of Elastic Scattering and Fusion Cross Sections for 6Li + 208Pb System at Near-Coulomb-Barrier Energies by using Folding Potential  

E-Print Network [OSTI]

Based on the extended optical model approach in which the polarization potential is decomposed into direct reaction (DR) and fusion parts, simultaneous $\\chi^{2}$ analyses are performed for elastic scattering and fusion cross section data for the $^{6}$Li+$^{208}$Pb system at near-Coulomb-barrier energies. A folding potential is used as the bare potential. It is found that the real part of the resultant DR part of the polarization potential is repulsive, which is consistent with the results from the Continuum Discretized Coupled Channel (CDCC) calculations and the normalization factors needed for the folding potentials. Further, it is found that both DR and fusion parts of the polarization potential satisfy separately the dispersion relation.

W. Y. So; T. Udagawa; K. S. Kim; S. W. Hong; B. T. Kim

2006-12-13T23:59:59.000Z

474

A technique for extending by ?10{sup 3} the dynamic range of compact proton spectrometers for diagnosing ICF implosions on the National Ignition Facility and OMEGA  

SciTech Connect (OSTI)

Wedge Range Filter (WRF) proton spectrometers are routinely used on OMEGA and the NIF for diagnosing ?R and ?R asymmetries in direct- and indirect-drive implosions of D{sup 3}He-, D{sub 2}-, and DT-gas-filled capsules. By measuring the optical opacity distribution in CR-39 due to proton tracks in high-yield applications, as opposed to counting individual tracks, WRF dynamic range can be extended by 10{sup 2} for obtaining the spectral shape, and by 10{sup 3} for mean energy (?R) measurement, corresponding to proton fluences of 10{sup 8} and 10{sup 9} cm{sup ?2}, respectively. Using this new technique, ?R asymmetries can be measured during both shock and compression burn (proton yield ?10{sup 8} and ?10{sup 12}, respectively) in 2-shock National Ignition Facility implosions with the standard WRF accuracy of ?10 mg/cm{sup 2}.

Sio, H., E-mail: hsio@mit.edu; Sguin, F. H.; Frenje, J. A.; Gatu Johnson, M.; Zylstra, A. B.; Rinderknecht, H. G.; Rosenberg, M. J.; Li, C. K.; Petrasso, R. D. [Massachusetts Institute of Technology Plasma Science and Fusion Center, Cambridge, Massachusetts 02139 (United States)

2014-11-15T23:59:59.000Z

475

Hamiltonian dynamics in extended phase space for gravity and its consistency with Lagrangian formalism: a generalized spherically symmetric model as an example  

E-Print Network [OSTI]

Among theoretical issues in General Relativity the problem of constructing its Hamiltonian formulation is still of interest. The most of attempts to quantize Gravity are based upon Dirac generalization of Hamiltonian dynamics for system with constraints. At the same time there exists another way to formulate Hamiltonian dynamics for constrained systems guided by the idea of extended phase space. We have already considered some features of this approach in the previous MG12 Meeting by the example of a simple isotropic model. Now we apply the approach to a generalized spherically symmetric model which imitates the structure of General Relativity much better. In particular, making use of a global BRST symmetry and the Noether theorem, we construct the BRST charge that generates correct gauge transformations for all gravitational degrees of freedom.

T. P. Shestakova

2013-03-06T23:59:59.000Z

476

The ChaMP Extended Stellar Survey (ChESS): Photometric and Spectroscopic Properties of Serendipitously Detected Stellar X-ray Sources  

E-Print Network [OSTI]

We present 348 X-ray emitting stars identified from correlating the Extended Chandra Multiwavelength Project (ChaMP), a serendipitous wide-area X-ray survey, with the Sloan Digital Sky Survey (SDSS). We use morphological star/galaxy separation, an SDSS quasar catalog, an optical color-magnitude cut, and X-ray data quality tests to create our catalog, the ChaMP Extended Stellar Survey (ChESS), from a sample of 2121 matched ChaMP/SDSS sources. Our cuts retain 92% of the spectroscopically confirmed stars while excluding 99.6% of the 684 spectoscopically confirmed extragalactic sources. Fewer than 3% of the sources in our final catalog are previously identified stellar X-ray emitters; we expect ~10% of the catalog is composed by giants, and identify seven giant stars and three cataclysmic variables. We derive distances, X-ray and bolometric luminosities for these stars, revealing that this catalog fills the gap between the nearby stars identified by the ROSAT All-Sky Survey and the more distant stars detected in deep Chandra and XMM-Newton surveys. For 36 newly identified X-ray emitting M stars we calculate L_(Halpha)/L_(bol). L_(H\\alpha)/L_(bol) and L_(X)/L_(bol) are linearly related below L_(X)/L_(bol) ~ 3 x 10^(-4), while L_(Halpha)/L_(bol) appears to turn over at larger L_(X)/L_(bol) values. Stars with reliable SDSS photometry have an ~0.1 mag blue excess in (u-g), likely due to increased chromospheric continuum emission. Photometric metallicity estimates suggest the sample is split between the young and old disk populations of the Galaxy; the lowest activity sources belong to the old disk population, a clear signature of the decay of magnetic activity with age. Future papers will present analyses of source variability and comparisons of this catalog to models of stellar activity in the Galactic disk.

K. R. Covey; M. A. Agueros; P. J. Green; D. Haggard; W. A. Barkhouse; J. Drake; N. Evans; V. Kashyap; D. -W. Kim; A. Mossman; D. O. Pease; J. D. Silverman

2008-05-16T23:59:59.000Z

477

The determination of interfacial structure and phase transitions in Al/Cu and Al/Ni interfaces by means of surface extended x-ray absorption fine structure  

SciTech Connect (OSTI)

Surface extended x-ray absorption fine structure (SEXAFS) was used to investigate the interfacial conditions of Al/Cu and Al/Ni shallow buried interfaces. Previous studies using glancing angle extended x-ray absorption fine structure, x-ray reflectivity, photoemission, and SEXAFS produced conflicting results as to whether or not the interfaces between Al and Cu and Al and Ni were reacted upon room temperature deposition. In this study polycrystalline bilayers of Al/Cu and Al/Ni and trilayers of Al/Cu/Al and Al/Ni/Al were deposited on tantalum foil at room temperature in ultra high vacuum and analyzed to evaluate the reactivity of these systems on a nanometer scale. It become overwhelming apparent that the interfacial phase reactions were a function of the vacuum conditions. Samples deposited with the optimum vacuum conditions showed reaction products upon deposition at room temperature which were characterized by comparisons to standards and by least squares fitting the be CuAl{sub 2} and NiAl{sub 3} respectively. The results of this study that the reacted zone thicknesses were readily dependent on the deposition parameters. For both Al on Cu and Al on Ni as well as the metal on Al conditions 10{Angstrom} reaction zones were observed. These reaction zones were smaller than that observed for bilayers of Al on Cu (30{Angstrom}) and Al on Ni (60{Angstrom}) where deposition rates were much higher and samples were much thicker. The reaction species are evident by SEXAFS, where the previous photoemission studies only indicated that changes had occurred. Improved vacuum conditions as compared to the earlier experiments is primarily the reason reactions on deposition were seen in this study as compared to the earlier SEXAFS studies.

Barrera, E.V. (Rice Univ., Houston, TX (United States). Dept. of Mechanical Engineering and Materials Science); Heald, S.M. (Brookhaven National Lab., Upton, NY (United States))

1991-01-01T23:59:59.000Z

478

The determination of interfacial structure and phase transitions in Al/Cu and Al/Ni interfaces by means of surface extended x-ray absorption fine structure  

SciTech Connect (OSTI)

Surface extended x-ray absorption fine structure (SEXAFS) was used to investigate the interfacial conditions of Al/Cu and Al/Ni shallow buried interfaces. Previous studies using glancing angle extended x-ray absorption fine structure, x-ray reflectivity, photoemission, and SEXAFS produced conflicting results as to whether or not the interfaces between Al and Cu and Al and Ni were reacted upon room temperature deposition. In this study polycrystalline bilayers of Al/Cu and Al/Ni and trilayers of Al/Cu/Al and Al/Ni/Al were deposited on tantalum foil at room temperature in ultra high vacuum and analyzed to evaluate the reactivity of these systems on a nanometer scale. It become overwhelming apparent that the interfacial phase reactions were a function of the vacuum conditions. Samples deposited with the optimum vacuum conditions showed reaction products upon deposition at room temperature which were characterized by comparisons to standards and by least squares fitting the be CuAl{sub 2} and NiAl{sub 3} respectively. The results of this study that the reacted zone thicknesses were readily dependent on the deposition parameters. For both Al on Cu and Al on Ni as well as the metal on Al conditions 10{Angstrom} reaction zones were observed. These reaction zones were smaller than that observed for bilayers of Al on Cu (30{Angstrom}) and Al on Ni (60{Angstrom}) where deposition rates were much higher and samples were much thicker. The reaction species are evident by SEXAFS, where the previous photoemission studies only indicated that changes had occurred. Improved vacuum conditions as compared to the earlier experiments is primarily the reason reactions on deposition were seen in this study as compared to the earlier SEXAFS studies.

Barrera, E.V. [Rice Univ., Houston, TX (United States). Dept. of Mechanical Engineering and Materials Science; Heald, S.M. [Brookhaven National Lab., Upton, NY (United States)

1991-12-31T23:59:59.000Z

479

UV-TO-FIR ANALYSIS OF SPITZER/IRAC SOURCES IN THE EXTENDED GROTH STRIP. II. PHOTOMETRIC REDSHIFTS, STELLAR MASSES, AND STAR FORMATION RATES  

SciTech Connect (OSTI)

Based on the ultraviolet to far-infrared photometry already compiled and presented in a companion paper (Paper I), we present a detailed spectral energy distribution (SED) analysis of nearly 80,000 IRAC 3.6 + 4.5 {mu}m selected galaxies in the Extended Groth Strip. We estimate photometric redshifts, stellar masses, and star formation rates (SFRs) separately for each galaxy in this large sample. The catalog includes 76,936 sources with [3.6] {<=} 23.75 (85% completeness level of the IRAC survey) over 0.48 deg{sup 2}. The typical photometric redshift accuracy is {Delta}z/(1 + z) = 0.034, with a catastrophic outlier fraction of just 2%. We quantify the systematics introduced by the use of different stellar population synthesis libraries and initial mass functions in the calculation of stellar masses. We find systematic offsets ranging from 0.1 to 0.4 dex, with a typical scatter of 0.3 dex. We also provide UV- and IR-based SFRs for all sample galaxies, based on several sets of dust emission templates and SFR indicators. We evaluate the systematic differences and goodness of the different SFR estimations using the deep FIDEL 70 {mu}m data available in the Extended Groth Strip. Typical random uncertainties of the IR-bases SFRs are a factor of two, with non-negligible systematic effects at z {approx}> 1.5 observed when only MIPS 24 {mu}m data are available. All data products (SEDs, postage stamps from imaging data, and different estimations of the photometric redshifts, stellar masses, and SFRs of each galaxy) described in this and the companion paper are publicly available, and they can be accessed through our the Web interface utility Rainbow-navigator.

Barro, G.; Perez-Gonzalez, P. G.; Gallego, J.; Villar, V.; Zamorano, J. [Departamento de Astrofisica, Facultad de CC. Fisicas, Universidad Complutense de Madrid, E-28040 Madrid (Spain); Ashby, M. L. N. [Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138 (United States); Kajisawa, M.; Yamada, T. [Astronomical Institute, Tohoku University, Aramaki, Aoba, Sendai 9808578 (Japan); Miyazaki, S. [National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588 (Japan)

2011-04-01T23:59:59.000Z

480

Distributed Error Confinement Extended Abstract  

E-Print Network [OSTI]

. These algorithms can serve as building blocks in more general reactive systems. Previous results in exploring locality in reactive systems were not error confined, and relied on the assump- tion (not used in current, that seems inherent for voting in reactive networks; its analysis leads to an interesting combinatorial

Patt-Shamir, Boaz

Note: This page contains sample records for the topic "kilowatthour epact05 extended" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Northern Pike Fertilization Using Extenders  

E-Print Network [OSTI]

SHORTAGE OF VIABLE UNSPENT MALES LEADS TO POOR FERTILIZATION RATES CAN'T ALWAYS GET NETS 532 AND PLAIN WELL WATER MONITOR ALL pH AND TEMPERATURE CHANGES #12;SPAWNING MILT AND WELL WATER TO THE OTHER EGGS MILT WAS ADDED INTO THE PANS AND MIXED INTO THE EGGS ONE QUART OF WELL WATER WAS ADDED

482

Extended-range tiltable micromirror  

DOE Patents [OSTI]

A tiltable micromirror device is disclosed in which a micromirror is suspended by a progressive linkage with an electrostatic actuator (e.g. a vertical comb actuator or a capacitive plate electrostatic actuator) being located beneath the micromirror. The progressive linkage includes a pair of torsion springs which are connected together to operate similar to a four-bar linkage with spring joints. The progressive linkage provides a non-linear spring constant which can allow the micromirror to be tilted at any angle within its range substantially free from any electrostatic instability or hysteretic behavior.

Allen, James J. (Albuquerque, NM); Wiens, Gloria J. (Newberry, FL); Bronson, Jessica R. (Gainesville, FL)

2009-05-05T23:59:59.000Z

483

Dynamical Friction on extended perturbers  

E-Print Network [OSTI]

Following a wave-mechanical treatment we calculate the drag force exerted by an infinite homogeneous background of stars on a perturber as this makes its way through the system. We recover Chandrasekhar's classical dynamical friction (DF) law with a modified Coulomb logarithm. We take into account a range of models that encompasses all plausible density distributions for satellite galaxies by considering the DF exerted on a Plummer sphere and a perturber having a Hernquist profile. It is shown that the shape of the perturber affects only the exact form of the Coulomb logarithm. The latter converges on small scales, because encounters of the test and field stars with impact parameters less than the size of the massive perturber become inefficient. We confirm this way earlier results based on the impulse approximation of small angle scatterings.

O. Esquivel; B. Fuchs

2008-04-01T23:59:59.000Z

484

Extending the X Window System  

SciTech Connect (OSTI)

The X Window System was originally developed in 1984 at Massachusetts Institute of Technology. It provides client-server computing functionality and also facilitates the establishment of a distributed computing environment. Since its inception the X Window System has undergone many enhancements. Despite these enhancements there will always be a functionality desired in the standard released version of X that is not supported or commercially or academically available. The developers of the X Window System have designed it in such a way that it is possible to add functionality that is not included in the standard release. This is called an extension. Extensions are one method used to develop a customized version of the X Window System to support a specialized application. This report presents the mechanics of adding an extension and examines a particular extension that was developed at Sandia National Laboratories to support data compression in X Windows which was one aspect of the Desktop Video and Collaborative Engineering Laboratory Directed Research and Development (LDRD).

Brenkosh, J.P.

1993-12-23T23:59:59.000Z

485

SF STATE Extended Learning Fundamental  

E-Print Network [OSTI]

Management: Planning and Managing a Multicultural Workforce · Performance Management · Total Compensation and complexity of many jobs, the aging of the workforce and advances in technology require continuous training to meet the needs of a multicultural workforce, and changing legislation and court rulings in the areas

486

The Fusion Machine (extended abstract)  

E-Print Network [OSTI]

directly. In the fusion machine, only channels exist at runtime. Channels may be remote, or co to rendezvous at the chan- nel. Execution amounts to the heating of a term (a directed implementation, rendezvous can result in explicit fusions, namely equational concurrent constraints on names. Upon heating

Gardner, Philippa

487

facial reduction and extended duals  

E-Print Network [OSTI]

Letting A? be the adjoint ... conic system of the form {x|g(x) ? K }. Luo .... The complementary face of a face G of K? is defined analogously and denoted by G

2013-02-13T23:59:59.000Z

488

OSCARS Extends JGI Network Capacity  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the ContributionsArms ControlChris Samoray CommunicationsOperationsOSCARS Collaborative

489

Indications for Pelvic Nodal Treatment in Prostate Cancer Should Change. Validation of the Roach Formula in a Large Extended Nodal Dissection Series  

SciTech Connect (OSTI)

Purpose: Previous studies have criticized the predicting ability of the Roach formula in assessing the risk of lymph node invasion (LNI) in contemporary patients with prostate cancer (PCa) due to a significant overestimation of LNI rates. However, all those studies included patients treated with limited pelvic lymph node dissection (PLND), which is associated with high rates of false negative findings. We hypothesized that the Roach formula is still an accurate tool for LNI predictions if an extended PLND (ePLND) is performed. Methods and Materials: We included 3,115 consecutive patients treated with radical prostatectomy and ePLND between 2000 and 2010 at a single tertiary referral center. Extended PLND consisted of removal of obturator, external iliac, and hypogastric lymph nodes. We externally validated the Roach formula by using the area under the receiver operating characteristics curve and calibration plot method. Moreover, we tested the performance characteristics of different formula-generated cutoff values ranging from 1% to 20%. Results: The accuracy of the Roach formula was 80.3%. The calibration showed only a minor underestimation of the LNI risk in high-risk patients (6.7%). According to the Roach formula, the use of 15% cut off would have allowed 74.2% (2,311/3,115) of patients to avoid nodal irradiation, while up to 32.7% (111/336) of all patients with LNI would have been missed. When the cut off was lowered to 6%, nodal treatment would have been spared in 1,541 (49.5%) patients while missing 41 LNI patients. The sensitivity, specificity, and negative predictive values associated with the 6% cut off were 87.9%, 54%, and 97.3%, respectively. Conclusions: The Roach formula is still accurate and does not overestimate the rate of LNI in contemporary prostate cancer patients if they are treated with ePLND. However, the recommended cut off of 15% would miss approximately one-third of patients with LNI. Based on our results, the cut off should be lowered to 6%.

Abdollah, Firas [Department of Urology, Vita Salute San Raffaele University, Milan (Italy); Cozzarini, Cesare [Department of Radiation Therapy, Vita Salute San Raffaele University, Milan (Italy); Suardi, Nazareno; Gallina, Andrea; Capitanio, Umberto; Bianchi, Marco; Tutolo, Manuela; Salonia, Andrea [Department of Urology, Vita Salute San Raffaele University, Milan (Italy); La Macchia, Mariangela; Di Muzio, Nadia [Department of Radiation Therapy, Vita Salute San Raffaele University, Milan (Italy); Rigatti, Patrizio; Montorsi, Francesco [Department of Urology, Vita Salute San Raffaele University, Milan (Italy); Briganti, Alberto, E-mail: briganti.alberto@hsr.it [Department of Urology, Vita Salute San Raffaele University, Milan (Italy)

2012-06-01T23:59:59.000Z

490

Managing aging effects on dry cask storage systems for extended long-term storage and transportation of used fuel - rev. 0  

SciTech Connect (OSTI)

The cancellation of the Yucca Mountain repository program in the United States raises the prospect of extended long-term storage (i.e., >120 years) and deferred transportation of used fuel at operating and decommissioned nuclear power plant sites. Under U.S. federal regulations contained in Title 10 of the Code of Federal Regulations (CFR) 72.42, the initial license term for an Independent Spent Fuel Storage Installation (ISFSI) must not exceed 40 years from the date of issuance. Licenses may be renewed by the U.S. Nuclear Regulatory Commission (NRC) at the expiration of the license term upon application by the licensee for a period not to exceed 40 years. Application for ISFSI license renewals must include the following: (1) Time-limited aging analyses (TLAAs) that demonstrate that structures, systems, and components (SSCs) important to safety will continue to perform their intended function for the requested period of extended operation; and (2) a description of the aging management program (AMP) for management of issues associated with aging that could adversely affect SSCs important to safety. In addition, the application must also include design bases information as documented in the most recent updated final safety analysis report as required by 10 CFR 72.70. Information contained in previous applications, statements, or reports filed with the Commission under the license may be incorporated by reference provided that those references are clear and specific. The NRC has recently issued the Standard Review Plan (SRP) for renewal of used-fuel dry cask storage system (DCSS) licenses and Certificates of Compliance (CoCs), NUREG-1927, under which NRC may renew a specific license or a CoC for a term not to exceed 40 years. Both the license and the CoC renewal applications must contain revised technical requirements and operating conditions (fuel storage, surveillance and maintenance, and other requirements) for the ISFSI and DCSS that address aging effects that could affect the safe storage of the used fuel. The information contained in the license and CoC renewal applications will require NRC review to verify that the aging effects on the SSCs in DCSSs/ ISFSIs are adequately managed for the period of extended operation. To date, all of the ISFSIs located across the United States with more than 1,500 dry casks loaded with used fuel have initial license terms of 20 years; three ISFSIs (Surry, H.B. Robinson and Oconee) have received their renewed licenses for 20 years, and two other ISFSIs (Calvert Cliffs and Prairie Island) have applied for license renewal for 40 years. This report examines issues related to managing aging effects on the SSCs in DCSSs/ISFSIs for extended long-term storage and transportation of used fuels, following an approach similar to that of the Generic Aging Lessons Learned (GALL) report, NUREG-1801, for the aging management and license renewal of nuclear power plants. The report contains five chapters and an appendix on quality assurance for aging management programs for used-fuel dry storage systems. Chapter I of the report provides an overview of the ISFSI license renewal process based on 10 CFR 72 and the guidance provided in NUREG-1927. Chapter II contains definitions and terms for structures and components in DCSSs, materials, environments, aging effects, and aging mechanisms. Chapter III and Chapter IV contain generic TLAAs and AMPs, respectively, that have been developed for managing aging effects on the SSCs important to safety in the dry cask storage system designs described in Chapter V. The summary descriptions and tabulations of evaluations of AMPs and TLAAs for the SSCs that are important to safety in Chapter V include DCSS designs (i.e., NUHOMS{reg_sign}, HI-STORM 100, Transnuclear (TN) metal cask, NAC International S/T storage cask, ventilated storage cask (VSC-24), and the Westinghouse MC-10 metal dry storage cask) that have been and continue to be used by utilities across the country for dry storage of used fuel to date. The goal of this report is to help establish the technical

Chopra, O.K.; Diercks, D.; Fabian, R.; Ma, D.; Shah, V.; Tam, S.W.; Liu, Y. (Decision and Information Sciences); ( EVS); ( NE)

2012-07-06T23:59:59.000Z

491

Soliton solutions and chaotic motion of the extended Zakharov-Kuznetsov equations in a magnetized two-ion-temperature dusty plasma  

SciTech Connect (OSTI)

The extended Zakharov-Kuznetsov (eZK) equation for the magnetized two-ion-temperature dusty plasma is studied in this paper. With the help of Hirota method, bilinear forms and N-soliton solutions are given, and soliton propagation is graphically analyzed. We find that the soliton amplitude is positively related to the nonlinear coefficient A, while inversely related to the dispersion coefficients B and C. We obtain that the soliton amplitude will increase with the mass of the jth dust grain and the average charge number residing on the dust grain decreased, but the soliton amplitude will increase with the equilibrium number density of the jth dust grain increased. Upon the introduction of the periodic external forcing term, both the weak and developed chaotic motions can occur. Difference between the two chaotic motions roots in the inequality between the nonlinear coefficient l{sub 2} and perturbed term h{sub 1}. The developed chaos can be weakened with B or C decreased and A increased. Periodic motion of the perturbed eZK equation can be observed when there is a balance between l{sub 2} and h{sub 1}.

Zhen, Hui-Ling; Tian, Bo, E-mail: tian-bupt@163.com; Wang, Yu-Feng; Sun, Wen-Rong; Liu, Li-Cai [State Key Laboratory of Information Photonics and Optical Communications, and School of Science, Beijing University of Posts and Telecommunications, Beijing 100876 (China)

2014-07-15T23:59:59.000Z

492

Extended reaction zone of La0.6Sr0.4Co0.2Fe0.8O3 cathode for solid oxide fuel cell  

SciTech Connect (OSTI)

The oxygen reduction reaction at the cathode of solid oxide fuel cell (SOFC) is a complicated process which involves the interaction of oxygen molecules, electrons, and oxygen ions. Therefore, it can only proceed at locations where gas, electronic conductor, and an oxygen ion conductor meet. Although the extension of the reaction zone beyond the traditional so-called triple-phase-boundary (TPB) is widely accepted for a mixed ionically and electronically conductive cathode, work in this area has yet to reach a consensus on how far the reaction zone can be extended. In this study, anode-supported fuel cells with a variety of LSCF cathode thicknesses were fabricated and tested in two cathode environments, flowing oxygen and flowing air. In flowing oxygen, the cell performance increased with LSCF cathode thickness over the entire range investigated (from 5 to 33 ?m). In flowing air, the cell performance also increased with the LSCF cathode thickness from 5 to 13 ?m, but then remained almost constant with further increase in cathode thickness. In flowing oxygen, since there was no concentration polarization related to oxygen diffusion, the polarization resistance of oxygen reduction decreased with the LSCF cathode thickness because of the increased number of reaction sites. A linear relationship was established between the reciprocal of the polarization resistance and the cathode thickness, which was explained by a model developed for aqueous gas diffusion electrodes.

Lu, Zigui; Hardy, John S.; Templeton, Jared W.; Stevenson, Jeffry W.

2012-01-03T23:59:59.000Z

493

On the global uniqueness for the Einstein-Maxwell-scalar field system with a cosmological constant. Part 3: Mass inflation and extendibility of the solutions  

E-Print Network [OSTI]

This paper is the third part of a trilogy dedicated to the following problem: given spherically symmetric characteristic initial data for the Einstein-Maxwell-scalar field system with a cosmological constant $\\Lambda$, with the data on the outgoing initial null hypersurface given by a subextremal Reissner-Nordstrom black hole event horizon, study the future extendibility of the corresponding maximal globally hyperbolic development as a "suitably regular" Lorentzian manifold. In the first part of this series we established the well posedness of the characteristic problem, whereas in the second part we studied the stability of the radius function at the Cauchy horizon. In this third and final paper we show that, depending on the decay rate of the initial data, mass inflation may or may not occur. When the mass is controlled, it is possible to obtain continuous extensions of the metric across the Cauchy horizon with square integrable Christoffel symbols. Under slightly stronger conditions, we can bound the gradient of the scalar field. This allows the construction of (non-isometric) extensions of the maximal development which are classical solutions of the Einstein equations. Our results provide evidence against the validity of the strong cosmic censorship conjecture when $\\Lambda>0$.

Joo L. Costa; Pedro M. Giro; Jos Natrio; Jorge Drumond Silva

2014-07-18T23:59:59.000Z

494

Laboratory H2O:CO2 ice desorption data: entrapment dependencies and its parameterization with an extended three-phase model  

E-Print Network [OSTI]

Ice desorption affects the evolution of the gas-phase chemistry during the protostellar stage, and also determines the chemical composition of comets forming in circumstellar disks. From observations, most volatile species are found in H2O-dominated ices. The aim of this study is first to experimentally determine how entrapment of volatiles in H2O ice depends on ice thickness, mixture ratio and heating rate, and second, to introduce an extended three-phase model (gas, ice surface and ice mantle) to describe ice mixture desorption with a minimum number of free parameters. Thermal H2O:CO2 ice desorption is investigated in temperature programmed desorption experiments of thin (10 - 40 ML) ice mixtures under ultra-high vacuum conditions. Desorption is simultaneously monitored by mass spectrometry and reflection-absorption infrared spectroscopy. The H2O:CO2 experiments are complemented with selected H2O:CO, and H2O:CO2:CO experiments. The results are modeled with rate equations that connect the gas, ice surface an...

Fayolle, Edith C; Cuppen, Herma M; Visser, Ruud; Linnartz, Harold; 10.1051/0004-6361/201016121

2011-01-01T23:59:59.000Z

495

AGN-driven winds on all scales in Markarian 231: from hot nuclear ultra-fast up to kpc-extended molecular outflow  

E-Print Network [OSTI]

We present the best sensitivity and angular resolution maps of the molecular disk and outflow of Mrk231, obtained with IRAM/PdBI, and an analysis of archival Chandra and NuSTAR data. We constrain the physical properties of both the molecular disk and outflow, the presence of a highly-ionized ultra-fast nuclear wind, and their connection. The CO(2-1) outflow has a size of ~1 kpc, and extends in all directions around the nucleus, being more prominent along the south-west to north-east direction, suggesting a wide-angle biconical geometry. Its maximum projected velocity is nearly constant out to ~1 kpc, thus implying that the density of the outflowing material must decrease from the nucleus outwards as ~ r^-2. This suggests that either a large part of the gas leaves the flow during its expansion, or that the bulk of the outflow has not yet reached ~1 kpc, implying a limit on its age of ~ 1 Myr. The mass and energy rates of the molecular outflow are dM/dt(OF)=[500-1000] Msun/yr and dE(kin,OF)/dt=[7-10] 10^43 erg/...

Feruglio, C; Carniani, S; Piconcelli, E; Zappacosta, L; Bongiorno, A; Cicone, C; Maiolino, R; Marconi, A; Menci, N; Puccetti, S; Veilleux, S

2015-01-01T23:59:59.000Z

496

Soft X-ray Extended Emissions of Short Gamma-Ray Bursts as Electromagnetic Counterparts of Compact Binary Mergers; Possible Origin and Detectability  

E-Print Network [OSTI]

We investigate the possible origin of extended emissions (EEs) of short gamma-ray bursts with an isotropic energy of ~ 10^(50-51) erg and a duration of a few 10 s to ~ 100 s, based on a compact binary (neutron star (NS)-NS or NS-black hole (BH)) merger scenario. We analyze the evolution of magnetized neutrino-dominated accretion disks of mass ~ 0.1 M_sun around BHs formed after the mergers, and estimate the power of relativistic outflows via the Blandford-Znajek (BZ) process. We show that a rotation energy of the BH up to > 10^52 erg can be extracted with an observed time scale of > 30 (1+z) s with a relatively small disk viscosity parameter of alpha X-ray band (1-10 keV) for M ~ 10^-2 M_sun possibly in NS-NS mergers, and in the BAT band (15-150 keV) for M ~ 10^-4 M_sun possibly in NS-BH mergers. In the former case, such soft EEs can provide a good chance of ~ 6 yr^-1 for simultaneous detections of the gravitational waves with a ~ 0.1 deg angular resolution by soft X-ray survey facilities like Wide-Field MAXI.

Takashi Nakamura; Kazumi Kashiyama; Daisuke Nakauchi; Yudai Suwa; Takanori Sakamoto; Nobuyuki Kawai

2014-10-20T23:59:59.000Z

497

Assessment of Indoor Air Quality Benefits and Energy Costs of Mechanical Ventilation  

E-Print Network [OSTI]

heating, given the higher cost per KWh for electricity, aaverage cost of electrical energy per kilowatt-hour (kWh) is

Logue, J.M.

2012-01-01T23:59:59.000Z

498

CX-011741: Categorical Exclusion Determination | Department of...  

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

research and development activities for the demonstration of a 1 kilowatt-hour nanotechnology-based high-energy-density liquid energy storage media and corresponding flow...

499

Electric $ales and revenue 1995  

SciTech Connect (OSTI)

This publication provides information on electricity sales, associated revenue, average revenue per kilowatthour sold, and number of consumers in the United States.

NONE

1996-12-01T23:59:59.000Z

500

U.S. Energy Information Administration (EIA) - Source  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

case, contributing to reductions in purchased electricity. In 2035, residential PV and wind systems produce 23 billion kilowatthours more electricity in the Best Available...