Powered by Deep Web Technologies
Note: This page contains sample records for the topic "techniques time frame" 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.


1

X-ray streak and framing camera techniques  

SciTech Connect

This paper reviews recent developments and applications of ultrafast diagnostic techniques for x-ray measurements. These techniques, based on applications of image converter devices, are already capable of significantly important resolution capabilities. Techniques capable of time resolution in the sub-nanosecond regime are being considered. Mechanical cameras are excluded from considerations as are devices using phosphors or fluors as x-ray converters.

Coleman, L.W.; Attwood, D.T.

1975-12-23T23:59:59.000Z

2

Framing Iran: The Islamic Revolution and the Green Movement as Told Through Time Magazine.  

E-Print Network (OSTI)

?? FRAMING IRAN: THE ISLAMIC REVOLUTION AND THE GREEN MOVEMENT AS TOLD THROUGH TIME MAGAZINE by Nadia Maiwandi This framing analysis was conducted to study… (more)

Maiwandi, Nadia

2013-01-01T23:59:59.000Z

3

Citizenship Porn within the Frame: Visualizing Techniques, Cyberspace, and the Production of “Undocumented”  

E-Print Network (OSTI)

Citizenship Porn within the Frame: Visualizing Techniques,pornographic fantasy that I call “citizenship porn”. Let mewhat I mean by “citizenship porn”; I will then raise several

Moran, Erin

2007-01-01T23:59:59.000Z

4

Examining the Variability of Wind Power Output in the Regulation Time Frame: Preprint  

DOE Green Energy (OSTI)

This work examines the distribution of changes in wind power for different time scales in the regulation time frame as well as the correlation of changes in power output for individual wind turbines in a wind plant.

Hodge, B. M.; Shedd, S.; Florita, A.

2012-08-01T23:59:59.000Z

5

On the spectral shift and the time delay of light in a Rindler accelerated frame  

E-Print Network (OSTI)

We discuss two effects predicted by the general theory of relativity in the context of Rindler accelerated observers: the gravitational spectral shift and the time delay of light. We show that these effects also appear in a Rindler frame in the absence of gravitational field, in accordance with the Einstein's equivalence principle.

J. B. Formiga; C. Romero

2006-07-02T23:59:59.000Z

6

Investigation of manufacturing techniques and prototyping of the Smartcities Citycar frame  

E-Print Network (OSTI)

A study was performed to analyze different methods of manufacturing a full scale car frame for the Smart Cities Citycar, a folding electric vehicle being designed at the MIT Media Lab, as well as a half-scale prototype for ...

Rogers, Arin S

2011-01-01T23:59:59.000Z

7

Shock Timing Technique for the NIF  

Science Conference Proceedings (OSTI)

Among the final shots at the Nova laser was a series testing the VISAR technique that will be the primary diagnostic for timing the shocks in a NIF ignition capsule. At Nova, the VISAR technique worked over the range of shock strengths and with the precision required for the NIF shock timing job--shock velocities in liquid D{sub 2} from 12 {micro}m/ns to 65 {micro}m/ns with better than 2% accuracy. VISAR images showed stronger shocks overtaking weaker ones, which is the basis of the plan for setting the pulse shape for the NIF ignition campaign. The technique is so precise that VISAR measurements may also play a role in certifying beam-to-beam and shot-to-shot repeatability of NIF laser pulses.

Munro, D.H.; Celliers, P.M.; Collins, G.W.; Gold, D.M.; DaSilva, L.B.; Haan, S.W.; Cauble, R.C.; Hammel, B.A.; Hsing, W.W.

2000-10-03T23:59:59.000Z

8

Advanced Wall Framing; BTS Technology Fact Sheet  

SciTech Connect

Advanced framing techniques for home construction have been researched extensively and proven effective. Both builders and home owners can benefit from advanced framing. Advanced framing techniques create a structurally sound home that has lower material and labor costs than a conventionally framed house. This fact sheet describes advanced framing techniques, design considerations, and framing.

Southface Energy Institute; Tromly, K.

2000-11-07T23:59:59.000Z

9

2-20 ns interframe time 2-frame 6.151 keV x-ray imaging on the recently upgraded Z Accelerator: A progress report  

SciTech Connect

When used for the production of an x-ray imaging backlighter source on Sandia National Laboratories' recently upgraded 26 MA Z Accelerator, the terawatt-class, multikilojoule, 526.57 nm Z-Beamlet laser (ZBL) [P. K. Rambo et al., Appl. Opt. 44, 2421 (2005)], in conjunction with the 6.151 keV (1s{sup 2}-1s2p triplet line of He-like Mn) curved-crystal imager [D. B. Sinars et al., Rev. Sci. Instrum. 75, 3672 (2004); G. R. Bennett et al., Rev. Sci. Instrum. 77, 10E322 (2006)], is capable of providing a high quality x radiograph per Z shot for inertial confinement fusion (ICF), complex hydrodynamics, and other high-energy-density physics experiments. For example, this diagnostic has recently afforded microgram-scale mass perturbation measurements on an imploding ignition-scale 1 mg ICF capsule [G. R. Bennett et al., Phys. Rev. Lett. 99, 205003 (2007)], where the perturbation was initiated by a surrogate deuterium-tritium (DT) fuel fill tube. Using an angle-time multiplexing technique, ZBL now has the capability to provide two spatially and temporally separated foci in the Z chamber, allowing 'two-frame' imaging to be performed, with an interframe time range of 2-20 ns. This multiplexing technique allows the full area of the four-pass amplifiers to be used for the two pulses, rather than split the amplifiers effectively into two rectangular sections, with one leg delayed with respect to the other, which would otherwise double the power imposed onto the various optics thereby halving the damage threshold, for the same irradiance on target. The 6.151 keV two frame technique has recently been used to image imploding wire arrays, using a 7.3 ns interframe time. The diagnostic will soon be converted to operate with p-rather than s-polarized laser light for enhanced laser absorption in the Mn foil, plus other changes (e.g., operation at the possibly brighter 6.181 keV Mn 1s{sup 2}-1s2p singlet line), to increase x-ray yields. Also, a highly sensitive inline multiframe ultrafast (1 ns gate time) digital x-ray camera is being developed [G. R. Bennett et al., Rev. Sci. Instrum. 77, 10E322 (2006)] to extend the system to 'four-frame' and markedly improve the signal-to-noise ratio. [At present, time-integrating Fuji BAS-TR2025 image plate (scanned with a Fuji BAS-5000 device) forms the time-integrated image-plane detector.].

Bennett, G. R.; Smith, I. C.; Shores, J. E.; Sinars, D. B.; Robertson, G.; Atherton, B. W.; Jones, M. C.; Porter, J. L. [Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185-1193 (United States)

2008-10-15T23:59:59.000Z

10

Introducing HTDP 3.1 to transform coordinates across time and spatial reference frames  

Science Conference Proceedings (OSTI)

The National Geodetic Survey, an office within the National Oceanic and Atmospheric Administration, recently released version 3.1 of the Horizontal Time-Dependent Positioning (HTDP) utility for transforming coordinates across time and between spatial ... Keywords: Crustal deformation, Dynamic datums, Geodesy, NAD83

Chris Pearson; Richard Snay

2013-01-01T23:59:59.000Z

11

RF Cherenkov picosecond timing technique for high energy physics applications  

Science Conference Proceedings (OSTI)

The Cherenkov time-of-propagation (TOP) detector and Cherenkov time-of-flight (TOF) detector in a ?head-on? geometry based on the recently proposed time measuring technique with radio frequency (RF) phototube are considered. Results of the Monte Carlo simulations are presented.

Margaryan, Amur; Hashimoto, Osamu; Majewski, Stanislaw; Tang, Liguang

2008-09-01T23:59:59.000Z

12

Workshop on Time Domain Science Using X-ray Techniques  

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

Time-Resolved Beamlines Time-Resolved Beamlines Advisory Committee Workshop Home Workshop Chairs: Lin Chen (Argonne National Laboratory) Steve Milton (Advanced Photon Source) David Reis (University of Michigan) Linda Young (Argonne National Laboratory) Workshop on Time Domain Science Using X-ray Techniques August 29 September 1, 2004, The Abbey, Fontana, Lake Geneva Area, Wisconsin A workshop on "Time Domain Science Using X-ray Techniques" was held from August 29 September 1, 2004 , welcoming both experts and beginners in the field. This is one of the concurrently held workshops in the series on "Future Scientific Directions for the Advanced Photon Source." The goal of the workshop was to identify future directions in scientific research using time resolved x-ray techniques and to address possiblities to produce ps

13

An analysis of some time-sharing techniques  

Science Conference Proceedings (OSTI)

The effectiveness of certain time-sharing techniques such as program relocation, disk rotational delay minimization, and swap volume minimization is investigated. Summary data is presented, and the findings are discussed. The vehicle for this investigation ... Keywords: B6500, bulk core usage, operating system model, relocation, rotational delay minimization, simulation, swap volume minimization, system simulation, time-sharing

Norman R. Nielsen

1971-02-01T23:59:59.000Z

14

Hybrid Run-time Power Management Technique for Realtime  

E-Print Network (OSTI)

This paper presents a new run-time power management technique for real-time embedded systems which consist of a voltage scalable processor and power controllable peripheral devices. We have observed that there exist significant trade-offs in terms of energy consumption between the Dynamic Power Management (DPM) scheme and the Dynamic Voltage Scaling (DVS) scheme over a wide range of system operating conditions. The proposed technique fully exploits workload-variation slack time by partitioning the task into several timeslots and shut down the unneeded peripheral device on timeslot-by-timeslot basis.

Minyoung Kim; Embedded System With

2001-01-01T23:59:59.000Z

15

Super Gabor frames on discrete periodic sets  

Science Conference Proceedings (OSTI)

Due to its potential applications in multiplexing techniques such as time division multiple access and frequency division multiple access, superframe has interested some mathematicians and engineering specialists. In this paper, we investigate super ... Keywords: 42C40, Discrete Zak transform, Discrete periodic sets, Gabor dual, Super Gabor frame, Superframe

Yun-Zhang Li; Qiao-Fang Lian

2013-05-01T23:59:59.000Z

16

Advanced House Framing | Department of Energy  

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

Advanced House Framing Advanced House Framing Advanced House Framing April 13, 2012 - 7:57pm Addthis Two-story home using advanced framing techniques. Two-story home using advanced framing techniques. Advanced house framing means materials, labor, and heating and cooling cost savings because the approach: Uses less lumber and generates less waste than typical framing methods. Increases energy efficiency by replacing lumber with insulation material, resulting in a higher whole-wall R-value through reduced thermal bridging and increased insulation. How does it work? Advanced framing works structurally by aligning framing members directly over each other to transfer the load from roof trusses or rafters to second floor wall studs, to floor joists, to first floor studs to the foundation,

17

Time-frequency resolved ultrafast spectroscopy techniques using wavelet analysis  

E-Print Network (OSTI)

New experimental techniques based on non-linear ultrafast spectroscopies have been developed over the last few years, and have been demonstrated to provide powerful probes of quantum dynamics in different types of molecular aggregates, including both natural and artificial light harvesting complexes. Fourier transform-based spectroscopies have been particularly successful, yet 'complete' spectral information normally necessitates the loss of all information on the temporal sequence of events in a signal. This information though is particularly important in transient or multi-stage processes, in which the spectral decomposition of the data evolves in time. By going through several examples of ultrafast quantum dynamics, we demonstrate that the use of wavelets provide an efficient and accurate way to simultaneously acquire both temporal and frequency information about a signal, and argue that this greatly aids the elucidation and interpretation of physical process responsible for non-stationary spectroscopic features, such as those encountered in coherent excitonic energy transport.

Javier Prior; Enrique Castro; Alex W. Chin; Javier Almeida; Susana F. Huelga; Martin B. Plenio

2013-08-21T23:59:59.000Z

18

Explicit/implicit multi-time step co-computations for blast analyses on a reinforced concrete frame structure  

Science Conference Proceedings (OSTI)

The paper explores the coupling between finite element codes based on implicit and explicit time integration schemes. An external coupling software has been developed based on the multi-time subdomain coupling algorithm, labelled as the GC method in ... Keywords: Blast loading, External code coupling, Reinforced concrete structure, Subdomain decomposition

M. Brun; A. Batti; A. Limam; A. Gravouil

2012-05-01T23:59:59.000Z

19

Yucca Mountain Licensing Standard Options for Very Long Time Frames: Technical Bases for the Standard and Compliance Assessments  

Science Conference Proceedings (OSTI)

In the existing U.S. Environmental Protection Agency (EPA) and Nuclear Regulatory Commission (NRC) regulations governing the spent nuclear fuel and high-level radioactive waste site at Yucca Mountain, Nevada, the time period of compliance was set at 10,000 years. Recently, a Court ordered that EPA and NRC either revise the regulation on this topic to be "based upon and consistent with" recommendations made by a panel of the National Academy of Sciences, who recommended a time period of compliance out to ...

2005-04-11T23:59:59.000Z

20

Development and Performance of Bechtel Nevada's Nine-Frame Camera System  

Science Conference Proceedings (OSTI)

Bechtel Nevada, Los Alamos Operations, has developed a high-speed, nine-frame camera system that records a sequence from a changing or dynamic scene. The system incorporates an electrostatic image tube with custom gating and deflection electrodes. The framing tube is shuttered with high-speed gating electronics, yielding frame rates of up to 5MHz. Dynamic scenes are lens-coupled to the camera, which contains a single photocathode gated on and off to control each exposure time. Deflection plates and drive electronics move the frames to different locations on the framing tube output. A single charge-coupled device (CCD) camera then records the phosphor image of all nine frames. This paper discusses setup techniques to optimize system performance. It examines two alternate philosophies for system configuration and respective performance results. We also present performance metrics for system evaluation, experimental results, and applications to four-frame cameras.

S. A. Baker; M. J. Griffith; J. L. Tybo

2002-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "techniques time frame" 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

Solar/hydrogen systems for the 1985 to 2000 time frame. Volume I. Solar/hydrogen systems assessment. Final report  

DOE Green Energy (OSTI)

The findings of a study of opportunities for commercialization of systems capable of producing hydrogen from solar energy are presented in two volumes. A compendium of monographs by specialists in the fields of solar energy conversion technologies, hydrogen production technologies and related technology descriptions from the general literature comprise Volume II. This data base was used to support an evaluation and selection process that identified four candidate solar/hydrogen systems best suited to commercialization within the next two decades. Volume I first reviews the background of the work and the methods used. Then an evaluation of the hydrogen product costs that might be achieved by the four selected candidate systems (photovoltaic/water electrolysis, thermal-heat engine/water electrolysis, wind energy/water electrolysis, small hydrogen/water electrolysis) is compared with the pricing structure and practices of the commodity gas market. Subsequently, product cost and market price match is noted to exist in the small user sector of the hydrogen marketplace. Barriers to and historical time lags in, commercialization of new technologies are then reviewed. Finally, recommendations for development and demonstration programs designed to accelerate the commercialization of the candidate systems are presented.

Foster, R. W.; Tison, R. R.; Escher, W. J.D.; Hanson, J. A.

1980-06-01T23:59:59.000Z

22

Proposal for Cherenkov Time of Flight Technique with Picosecond Resolution  

Science Conference Proceedings (OSTI)

A new particle identification device for Jlab 12 GeV program is proposed. It is based on the measurement of time information obtained by means of a new photon detector and time measuring concept. The expected time measurement precision for the Cherenkov time-of-flight detector is about or less than 10 picosecond for Cherenkov radiators with lengths less than 50 cm.

S. Majewski; A. Margaryan; L. Tang

2005-08-05T23:59:59.000Z

23

VIOLENT FRAMES IN ACTION  

Science Conference Proceedings (OSTI)

We present a computational approach to radical rhetoric that leverages the co-expression of rhetoric and action features in discourse to identify violent intent. The approach combines text mining and machine learning techniques with insights from Frame Analysis and theories that explain the emergence of violence in terms of moral disengagement, the violation of sacred values and social isolation in order to build computational models that identify messages from terrorist sources and estimate their proximity to an attack. We discuss a specific application of this approach to a body of documents from and about radical and terrorist groups in the Middle East and present the results achieved.

Sanfilippo, Antonio P.; McGrath, Liam R.; Whitney, Paul D.

2011-11-17T23:59:59.000Z

24

ENTROPY-BASED VARIABLE FRAME RATE ANALYSIS OF SPEECH SIGNALS AND ITS APPLICATION TO ASR  

E-Print Network (OSTI)

of features without a degradation in acoustic modelling. It also verifies that the technique in [1] improves acoustic modelling in noise and that [1] outperforms the other VFR techniques in recogni- tion experiments achieve a more reliable frame-picking decision based on a longer time span spectral information

Alwan, Abeer

25

Modeling laser wakefield accelerators in a Lorentz boosted frame  

Science Conference Proceedings (OSTI)

Modeling of laser-plasma wakefield accelerators in an optimal frame of reference is shown to produce orders of magnitude speed-up of calculations from first principles. Obtaining these speedups requires mitigation of a high-frequency instability that otherwise limits effectiveness in addition to solutions for handling data input and output in a relativistically boosted frame of reference. The observed high-frequency instability is mitigated using methods including an electromagnetic solver with tunable coefficients, its extension to accomodate Perfectly Matched Layers and Friedman's damping algorithms, as well as an efficient large bandwidth digital filter. It is shown that choosing the frame of the wake as the frame of reference allows for higher levels of filtering and damping than is possible in other frames for the same accuracy. Detailed testing also revealed serendipitously the existence of a singular time step at which the instability level is minimized, independently of numerical dispersion, thus indicating that the observed instability may not be due primarily to Numerical Cerenkov as has been conjectured. The techniques developed for Cerenkov mitigation prove nonetheless to be very efficient at controlling the instability. Using these techniques, agreement at the percentage level is demonstrated between simulations using different frames of reference, with speedups reaching two orders of magnitude for a 0.1 GeV class stages. The method then allows direct and efficient full-scale modeling of deeply depleted laser-plasma stages of 10 GeV-1 TeV for the first time, verifying the scaling of plasma accelerators to very high energies. Over 4, 5 and 6 orders of magnitude speedup is achieved for the modeling of 10 GeV, 100 GeV and 1 TeV class stages, respectively.

Vay, J.-L.; Geddes, C.G.R.; Cormier-Michel, E.; Grotec, D. P.

2010-06-15T23:59:59.000Z

26

TECHNIQUES FOR EVALUATING THE PERFORMANCE OF PRE-TIMED RAMP METERS  

E-Print Network (OSTI)

1 TECHNIQUES FOR EVALUATING THE PERFORMANCE OF PRE-TIMED RAMP METERS USING ARCHIVED ITS DATA Robert: 503-725-8480 Email: elgeneid@pdx.edu ABSTRACT Pre-Timed Ramp Metering (PRM) is a traffic management efficient, effective, equitable and sustainable. Pre-Timed Ramp Metering (PRM) is a traffic management

Bertini, Robert L.

27

Modeling laser wakefield accelerators in a Lorentz boosted frame  

Science Conference Proceedings (OSTI)

Modeling of laser-plasma wakefield accelerators in an optimal frame of reference [1] is shown to produce orders of magnitude speed-up of calculations from first principles. Obtaining these speedups requires mitigation of a high frequency instability that otherwise limits effectiveness in addition to solutions for handling data input and output in a relativistically boosted frame of reference. The observed high-frequency instability is mitigated using methods including an electromagnetic solver with tunable coefficients, its extension to accomodate Perfectly Matched Layers and Friedman's damping algorithms, as well as an efficient large bandwidth digital filter. It is shown that choosing theframe of the wake as the frame of reference allows for higher levels of filtering and damping than is possible in other frames for the same accuracy. Detailed testing also revealed serendipitously the existence of a singular time step at which the instability level is minimized, independently of numerical dispersion, thus indicating that the observed instability may not be due primarily to Numerical Cerenkov as has been conjectured. The techniques developed for Cerenkov mitigation prove nonetheless to be very efficient at controlling the instability. Using these techniques, agreement at the percentage level is demonstrated between simulations using different frames of reference, with speedups reaching two orders of magnitude for a 0.1 GeV class stages. The method then allows direct and efficient full-scale modeling of deeply depleted laser-plasma stages of 10 GeV-1 TeV for the first time, verifying the scaling of plasma accelerators to very high energies. Over 4, 5 and 6 orders of magnitude speedup is achieved for the modeling of 10 GeV, 100 GeV and 1 TeV class stages, respectively.

Vay, J.-L.; Geddes, C.G.R.; Cormier-Michel, E.; Grote, D.P.

2010-09-15T23:59:59.000Z

28

reaction (RT-PCR) to detect Kashmir bee virus (KBV). This technique requires time-  

E-Print Network (OSTI)

reaction (RT-PCR) to detect Kashmir bee virus (KBV). This technique requires time- consuming virus purification and RNA extraction steps. Hung and Shimanuki [9] developed a direct RT-PCR method of KBV detection with the sequences of many virus polyproteins. Kasmir bee virus / direct RT-PCR / pairwise comparison / phylogenetic

Recanati, Catherine

29

Building America Top Innovations Hall of Fame Profile … Advanced Framing Systems and Packages  

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

studies involving studies involving thousands of homes have documented significant material, labor, and energy savings when production builders implement advanced framing techniques. Advanced framing can reduce the number of studs in the walls by up to one-third, reducing the cost of materials. and reducing the cost of labor in terms of the time it takes to handle, cut, install, drill, and attach to studs. Actual savings have exceeded $1,000 per home. Studies show the resulting improvement in thermal performance can yield 13% energy savings. BUILDING AMERICA TOP INNOVATIONS HALL OF FAME PROFILE INNOVATIONS CATEGORY: 1. Advanced Technologies and Practices 1.1 Building Science Solutions Advanced Framing Systems and Packages Building America has developed best practices for advanced framing

30

Performance analysis of a framed ALOHA system with diversity frequency hopping  

Science Conference Proceedings (OSTI)

In this paper, we study the performance of a framed ALOHA system that employs slow frequency-hopping techniques. A new strategy that employs diversity transmission (multiple frequency-hopping) techniques to enhance the performance of a framed ALOHA system ...

In-Hang Chung; Ming-Ching Yen

2006-08-01T23:59:59.000Z

31

Frame dragging and superenergy  

Science Conference Proceedings (OSTI)

We show that the vorticity appearing in stationary vacuum spacetimes is always related to the existence of a flow of superenergy on the plane orthogonal to the vorticity vector. This result, together with the previously established link between vorticity and superenergy in radiative (Bondi-Sachs) spacetimes, strengthens further the case for this latter quantity as the cause of frame dragging.

Herrera, L.; Di Prisco, A. [Escuela de Fisica, Facultad de Ciencias, Universidad Central de Venezuela, Caracas (Venezuela); Carot, J. [Departament de Fisica, Universitat Illes Balears, E-07122 Palma de Mallorca (Spain)

2007-08-15T23:59:59.000Z

32

Experimental validation of a diagnostic technique for tuning the fourth shock timing on National Ignition Facility  

Science Conference Proceedings (OSTI)

Capsule implosions on the National Ignition Facility (NIF) [Lindl et al., Phys. Plasmas 11, 339 (2004)] will be driven with a carefully tailored sequence of four shock waves that must be timed to very high precision in order to keep the fuel on a low adiabat. The Hohlraum conditions present during the first three shocks allow for a very accurate and direct diagnosis of the strength and timing of each individual shock by velocity interferometry. Experimental validation of this diagnostic technique on the OMEGA Laser Facility [Boehly et al., Opt. Commun. 133, 495 (1997)] has been reported in [Boehly et al., Phys. Plasmas 16, 056302 (2009)]. The Hohlraum environment present during the launch and propagation of the final shock, by contrast, is much more severe and will not permit diagnosis by the same technique. A new, closely related technique has been proposed for measuring and tuning the strength and timing of the fourth shock. Experiments to test this technique under NIF-relevant conditions have also been performed on OMEGA. The result of these experiments and a comparison to numerical simulations is presented, validating this concept.

Robey, H. F.; Celliers, P. M.; Landen, O. L. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Boehly, T. R.; Meyerhofer, D. D. [Laboratory for Laser Energetics, Rochester, New York 14645 (United States); Olson, R. E. [Sandia National Laboratories, Albuquerque, New Mexico 87123 (United States); Nikroo, A. [General Atomics, San Diego, California 92186 (United States)

2010-01-15T23:59:59.000Z

33

Frame Heat Transfer Research  

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

Developing Low-Conductance Window Frames: Capabilities and Developing Low-Conductance Window Frames: Capabilities and Limitations of Current Window Heat Transfer Design Tools Arild Gustavsen 1,* , Dariush Arasteh 2 , Bjørn Petter Jelle 3,4 , Charlie Curcija 5 and Christian Kohler 2 1 Department of Architectural Design, History and Technology, Norwegian University of Science and Technology, Alfred Getz vei 3, NO-7491 Trondheim, Norway 2 Windows and Daylighting Group, Lawrence Berkeley National Laboratory, 1 Cyclotron Road Mail Stop 90R3111, Berkeley, CA 94720- 8134, USA 3 Department of Civil and Transport Engineering, Norwegian University of Science and Technology, Høgskoleringen 7A, NO-7491 Trondheim, Norway 4 Department of Building Materials and Structures, SINTEF Building and Infrastructure, Høgskoleringen 7B,NO-7465 Trondheim, Norway

34

EV Everywhere Framing Workshop  

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

EV Everywhere Framing Workshop EV Everywhere Framing Workshop David Sandalow Under Secretary of Energy (Acting) Assistant Secretary for Policy and International Affairs U.S. Department of Energy Dearborn, Michigan June 21, 2012 2 | U.S. Department of Energy energy.gov Transportation sector depends on oil Transportation sector depends on oil Petroleum 94% Natural Gas < 1% Biofuels 5% U.S. Transportation Fuel Share Gasoline prices are high Current Avg. $3.53 (as of June 18)* High gasoline prices are a burden on American families. *Source: EIA 3 | U.S. Department of Energy energy.gov U.S. oil import bill is almost $1 billion per day U.S. oil import bill is almost $1 billion per day http://www.eia.gov/petroleum/data.cfm#imports 4 | U.S. Department of Energy energy.gov

35

Demonstration of the shock-timing technique for ignition targets on the National Ignition Facility  

Science Conference Proceedings (OSTI)

A high-performance inertial confinement fusion capsule is compressed by multiple shock waves before it implodes. To minimize the entropy acquired by the fuel, the strength and timing of those shock waves must be accurately controlled. Ignition experiments at the National Ignition Facility (NIF) will employ surrogate targets designed to mimic ignition targets while making it possible to measure the shock velocities inside the capsule. A series of experiments on the OMEGA laser facility [Boehly et al., Opt. Commun. 133, 495 (1997)] validated those targets and the diagnostic techniques proposed. Quartz was selected for the diagnostic window and shock-velocity measurements were demonstrated in Hohlraum targets heated to 180 eV. Cryogenic experiments using targets filled with liquid deuterium further demonstrated the entire timing technique in a Hohlraum environment. Direct-drive cryogenic targets with multiple spherical shocks were used to further validate this technique, including convergence effects at relevant pressures (velocities) and sizes. These results provide confidence that shock velocity and timing can be measured in NIF ignition targets, allowing these critical parameters to be optimized.

Boehly, T. R.; Hu, S. X.; Morozas, J. A.; Sangster, T. C. [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14645 (United States); Munro, D.; Celliers, P. M.; Hicks, D. G.; Collins, G. W.; Robey, H. F.; Landen, O. L. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Olson, R. E. [Sandia National Laboratories, Albuquerque, New Mexico 87123 (United States); Goncharov, V. N. [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14645 (United States); Department of Mechanical Engineering, University of Rochester, New York 14645 (United States); Meyerhofer, D. D. [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14645 (United States); Department of Mechanical Engineering, University of Rochester, New York 14645 (United States); Department of Physics and Astronomy, University of Rochester, New York 14645 (United States)

2009-05-15T23:59:59.000Z

36

Electrically insulating and sealing frame  

DOE Patents (OSTI)

A combination gas seal and electrical insulator having a closed frame shape interconnects a fuel cell stack and a reactant gas plenum of a fuel cell generator. The frame can be of rectangular shape including at least one slidable spline connection in each side to permit expansion or contraction consistent with that of the walls of the gas plenum and fuel cell stack. The slidable spline connections in the frame sides minimizes lateral movement between the frame side members and sealing material interposed between the frame and the fuel cell stack or between the frame and the reactant gas plenum.

Guthrie, Robin J. (East Hartford, CT)

1983-11-08T23:59:59.000Z

37

A Birthday Party Frame System  

E-Print Network (OSTI)

This paper is an experimental investigation of the utility of the MIT-AI frames system. Using this system, a birthday party planning system was written, representing the basic decisions that comprise such a plan as frames. ...

Clemenson, Gregory D.

38

Energy Conditions in Jordan Frame  

E-Print Network (OSTI)

The null energy condition, in its usual form, can appear to be violated by transformations in the conformal frame of the metric. We propose a generalization of the form of the null energy condition to Jordan frame, in which matter is non-minimally coupled, which reduces to the familiar form in Einstein frame. Using our version of the null energy condition, we provide a direct proof of the second law of black hole thermodynamics in Jordan frame.

Saugata Chatterjee; Damien A. Easson; Maulik Parikh

2012-12-27T23:59:59.000Z

39

Real-Time Tool Condition Monitoring Using Wavelet Transforms and Fuzzy Techniques  

E-Print Network (OSTI)

In this paper, wavelet transforms and fuzzy techniques are used to monitor tool breakage and wear conditions in real time according to the measured spindle and feed motor currents, respectively. First, the continuous and discrete wavelet transforms are used to decompose the spindle and feed ac servo motor current signals to extract signal features so as to detect the breakage of drills successfully. Next, the models of the relationships between the current signals and the cutting parameters are established under different tool wear states. Subsequently, fuzzy classification methods are used to detect tool wear states based on the above models. Finally, the two methods above are integrated to establish an intelligent tool condition monitoring system for drilling operations. The monitoring system can detect tool breakage and tool wear conditions using very simple current sensors. Experimental results show that the proposed system can reliably detect tool conditions in drilling operations in real time and is viable for industrial applications.

Xiaoli Li; Shiu Kit Tso; Jun Wang; Senior Member; Senior Member

2000-01-01T23:59:59.000Z

40

High Performance Commercial Fenestration Framing Systems  

SciTech Connect

A major objective of the U.S. Department of Energy is to have a zero energy commercial building by the year 2025. Windows have a major influence on the energy performance of the building envelope as they control over 55% of building energy load, and represent one important area where technologies can be developed to save energy. Aluminum framing systems are used in over 80% of commercial fenestration products (i.e. windows, curtain walls, store fronts, etc.). Aluminum framing systems are often required in commercial buildings because of their inherent good structural properties and long service life, which is required from commercial and architectural frames. At the same time, they are lightweight and durable, requiring very little maintenance, and offer design flexibility. An additional benefit of aluminum framing systems is their relatively low cost and easy manufacturability. Aluminum, being an easily recyclable material, also offers sustainable features. However, from energy efficiency point of view, aluminum frames have lower thermal performance due to the very high thermal conductivity of aluminum. Fenestration systems constructed of aluminum alloys therefore have lower performance in terms of being effective barrier to energy transfer (heat loss or gain). Despite the lower energy performance, aluminum is the choice material for commercial framing systems and dominates the commercial/architectural fenestration market because of the reasons mentioned above. In addition, there is no other cost effective and energy efficient replacement material available to take place of aluminum in the commercial/architectural market. Hence it is imperative to improve the performance of aluminum framing system to improve the energy performance of commercial fenestration system and in turn reduce the energy consumption of commercial building and achieve zero energy building by 2025. The objective of this project was to develop high performance, energy efficient commercial fenestration framing systems, by investigating new technologies that would improve the thermal performance of aluminum frames, while maintaining their structural and life-cycle performance. The project targeted an improvement of over 30% (whole window performance) over conventional commercial framing technology by improving the performance of commercial framing systems.

Mike Manteghi; Sneh Kumar; Joshua Early; Bhaskar Adusumalli

2010-01-31T23:59:59.000Z

Note: This page contains sample records for the topic "techniques time frame" 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

MTS Table Top Load frame  

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

MTS Table Top Load frame MTS Table Top Load frame The Non-destructive Evaluation group operates an MTS Table Top Load frame for ultimate strength and life cycle testing of various ceramic, ceramic-matrix (FGI), carbon, carbon fiber, cermet (CMC) and metal alloy engineering samples. The load frame is a servo-hydraulic type designed to function in a closed loop configuration under computer control. The system can perform non-cyclic, tension, compression and flexure testing and cyclic fatigue tests. The system is comprised of two parts: * The Load Frame and * The Control System. Load Frame The Load Frame (figure 1) is a cross-head assembly which includes a single moving grip, a stationary grip and LVDT position sensor. It can generate up to 25 kN (5.5 kip) of force in the sample under test and can

42

Time frames for geothermal project development  

DOE Green Energy (OSTI)

Geothermal development can generally be broken down into distinct phases: Exploration and Leasing; Project Development And Feasibility Studies; Well Field Development; Project Finance, Construction and Start-up Operations; and Commercial Operations. Each phase represents different levels of cost and risk and different types of management teams that are needed to assess and manage the project and associated risk. Orderly transitions of management at each major phase are needed. Exploration programs are largely science based, the primary focus of the science based investigations should be to: secure the lease position, and develop sufficient information to identify and characterize an economical geothermal resource. Project development specialists build on the exploration data to: pull together a project design, develop a detailed cost estimate; prepare an environmental assessment; and collect all data needed for project financing. Construction specialist build from the development phase to: develop detailed engineering, procure equipment and materials, schedule and manage the facilities construction programs, and start and test the power plant. Operations specialists take over from construction during start-up and are responsible for sustainable and reliable operations of the resource and power generation equipment over the life of the project.

McClain, David W.

2001-04-17T23:59:59.000Z

43

Automatic Extraction of Subcategorization Frames for Czech  

E-Print Network (OSTI)

We present some novel machine learning techniques for the identification of subcategorization information for verbs in Czech. We compare three different statistical techniques applied to this problem. We show how the learning algorithm can be used to discover previously unknown subcategorization frames from the Czech Prague 1)ependency Treebank. The algorithm can then be used to label dependents of a verb in the Czech treebank as either arguments or adjuncts. Using our techniques, we are able to achieve 88% precision on unseen parsed text.

Anoop Sarkar; Daniel Zeman

2000-01-01T23:59:59.000Z

44

Quality assessment of GPS reprocessed terrestrial reference frame  

Science Conference Proceedings (OSTI)

The International GNSS Service (IGS) contributes to the construction of the International Terrestrial Reference Frame (ITRF) by submitting time series of station positions and Earth Rotation Parameters (ERP). For the first time, its submission to the ... Keywords: GNSS, Geocenter motion, Loading, Systematic errors, Terrestrial reference frames

Xavier Collilieux; Laurent Métivier; Zuheir Altamimi; Tonie Dam; Jim Ray

2011-07-01T23:59:59.000Z

45

Enhanced Prediction Techniques Based on Time-Accurate Simulations for Turbine Blade Internal Cooling  

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

Performance Computational Fluid-Thermal Science & Engineering Lab Performance Computational Fluid-Thermal Science & Engineering Lab utsr.dkt.oct05 Enhanced Prediction Techniques Based on Time-Accurate Simulations for Turbine Blade Internal Cooling Danesh Tafti SCIES Project 02- 01- SR100 DOE COOPERATIVE AGREEMENT DE-FC26-02NT41431 Tom J. George, Program Manager, DOE/NETL Richard Wenglarz, Manager of Research, SCIES Project Awarded (5/1/02, 36 Month Duration) $ 331,430 Total Contract Value ($331,430 DOE) High Performance Computational Fluid-Thermal Science & Engineering Lab utsr.dkt.oct05 Gas Turbine Need * Need for higher thermal efficiencies result in higher gas temperatures * Cooling technologies critical for increased durability * Reliable prediction tools for design - reduce costs High Performance Computational Fluid-Thermal Science & Engineering Lab

46

Handbook of normal frames and coordinates  

E-Print Network (OSTI)

The main subject of the book is an up-to-date and in-depth survey of the theory of normal frames and coordinates in differential geometry. The book can be used as a reference manual, review of the existing results and introduction to some new ideas and developments. In the book can be found practically all existing essential results and methods concerning normal frames and coordinates. Most of the results are represented in full detail with full, in some cases new, proofs. All classical results are expanded and generalized in various directions. Theorems of existence, uniqueness and, possibly, holonomicity of the normal frames and coordinates are proved; mostly, the proofs are constructive and some their parts can be used independently for other tasks. Besides published results, their extensions and generalizations, the book contains completely new results which appear for the first time.

Bozhidar Z. Iliev

2006-10-01T23:59:59.000Z

47

New measurement technique for the product of the electron mobility and mean free drift time for pixelated semiconductor detectors  

E-Print Network (OSTI)

New measurement technique for the product of the electron mobility and mean free drift time t A new method for measuring the electron mobility, the electron mean free drift time, and their product quantities to characterize the charge trans- port are the electron mobility (me) and the mean free drift time

He, Zhong

48

Problem frames and software engineering  

Science Conference Proceedings (OSTI)

A general account is given of the problem frames approach to the development of software-intensive systems, assuming that the reader is already familiar with its basic ideas. The approach is considered in the light of the long-standing aspiration of ... Keywords: Problem frame, Problems, Software

Michael Jackson

2005-11-01T23:59:59.000Z

49

High-speed real-time multi-rate simulation  

Science Conference Proceedings (OSTI)

Recent research has focused on developing techniques that use digital signal processors (DSPs) and field-programmable gate arrays (FPGAs) to support real-time simulation with frame times of a few microseconds or less. These techniques can be used ... Keywords: FPGA, distributed, high-speed, multi-rate, real-time

Roy Crosbie; Dale Word; John Zenor; Richard Bednar; Wilfred Ghonsalves; Narain Hingorani

2009-07-01T23:59:59.000Z

50

Certification of Instrumentation Techniques for Resources Management of Real-Time Systems.  

E-Print Network (OSTI)

??Dynamic real-time systems have to meet timing requirements in unpredictable environments, where available resources might vary, running tasks might change, and task workloads might differ.… (more)

Tan, Zhenyu

2005-01-01T23:59:59.000Z

51

A novel digital beamforming technique based on homogeneous adaptation employing time-varying convergence factors  

Science Conference Proceedings (OSTI)

In this paper, a novel complex homogeneous adaptation least mean square algorithm (complex HA-LMS) for digital beamforming is presented. The proposed technique independently adjusts the real and imaginary components of the complex adaptive filter coefficients ...

Raghuram Ranganathan; Wasfy Mikhael

2009-01-01T23:59:59.000Z

52

A Comparison of Two Objective Analysis Techniques for Profiler Time-Height Data  

Science Conference Proceedings (OSTI)

Two methods for objective analysis of wind profiler data in time-height space are proposed and compared. One is a straightforward adaptation of a procedure developed by Doswell for introducing time continuity into a sequence of spatial analyses. ...

Frederick H. Carr; Phillip L. Spencer; Charles A. Doswell III; Jeffrey D. Powell

1995-07-01T23:59:59.000Z

53

General reference frames and their associated space manifolds  

E-Print Network (OSTI)

We propose a formal definition of a general reference frame in a general spacetime, as an equivalence class of charts. This formal definition corresponds with the notion of a reference frame as being a (fictitious) deformable body, but we assume, moreover, that the time coordinate is fixed. This is necessary for quantum mechanics, because the Hamiltonian operator depends on the choice of the time coordinate. Our definition allows us to associate rigorously with each reference frame F, a unique "space" (a three-dimensional differentiable manifold), which is the set of the world lines bound to F. This also is very useful for quantum mechanics.

Arminjon, Mayeul

2010-01-01T23:59:59.000Z

54

A Gas Dynamics Method Based on The Spectral Deferred Corrections (SDC) Time Integration Technique and The Piecewise Parabolic Method (PPM)  

SciTech Connect

We present a computational gas dynamics method based on the Spectral Deferred Corrections (SDC) time integration technique and the Piecewise Parabolic Method (PPM) finite volume method. The PPM framework is used to define edge averaged quantities which are then used to evaluate numerical flux functions. The SDC technique is used to integrate solution in time. This kind of approach was first taken by Anita et al in [17]. However, [17] is problematic when it is implemented to certain shock problems. Here we propose significant improvements to [17]. The method is fourth order (both in space and time) for smooth flows, and provides highly resolved discontinuous solutions. We tested the method by solving variety of problems. Results indicate that the fourth order of accuracy in both space and time has been achieved when the flow is smooth. Results also demonstrate the shock capturing ability of the method.

Samet Y. Kadioglu

2011-12-01T23:59:59.000Z

55

Molecular-Frame Angular Distributions of Resonant Auger Electrons  

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

Molecular-Frame Angular Molecular-Frame Angular Distributions of Resonant Auger Electrons Molecular-Frame Angular Distributions of Resonant Auger Electrons Print Wednesday, 27 May 2009 00:00 Molecular-frame electron angular distribution (MFAD) measurements provide access to an unprecedented level of detailed information about phenomena involving quantum coherence, such as phases of photoelectron waves, symmetry breaking in molecular dissociation, core-hole localization in molecules, and molecular double-slit interference, all of which are hidden in conventional gas-phase electron spectroscopy, owing to the random orientation of the molecules. While most MFAD studies to date have focused on photoelectrons, an international team of scientists from Western Michigan University, the ALS, and Tohoku University in Japan has successfully used a novel approach to determine for the first time the molecular-frame angular distributions of resonantly excited Auger electrons in carbon monoxide.

56

Building America Top Innovations 2013 Profile … Next Generation Advanced Framing  

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

It's well known that advanced framing techniques that reduce the amount of It's well known that advanced framing techniques that reduce the amount of framing in the stud-framed walls improve the thermal performance of walls by allowing more room for insulation and reducing thermal bridging-the heat transfer that happens through wood framing that extends from the inside surface to the outside surface of the wall. Unfortunately even though the benefits are known, builders have been slow to adopt advanced framing methods because some of the techniques are difficult to apply, trades are not familiar with these nonstandard techniques, and implementation can require design and materials changes. One Building America team, the Partnership for Home Innovation (PHI) led by the Home Innovation Research Labs (formerly known as the National

57

Building America Top Innovations 2013 Profile … Next Generation Advanced Framing  

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

It is well known that advanced framing techniques that reduce the amount of It is well known that advanced framing techniques that reduce the amount of framing in stud-framed walls improve the thermal performance of the walls by allowing more room for insulation and reducing thermal bridging-the heat transfer that happens through wood framing that extends from the inside surface to the outside surface of the wall. Unfortunately, even though the benefits are known, builders have been slow to adopt advanced framing methods because some of the techniques are difficult to apply, trades are not familiar with these nonstandard techniques, and implementation can require design and materials changes. One Building America team, the Partnership for Home Innovation (PHI) led by the Home Innovation Research Labs (formerly known as the National

58

Surfing: A robust form of wave pipelining using self-timed circuit techniques  

E-Print Network (OSTI)

This paper presents “surfing, ” a novel variation of wave pipelining. In previous wave pipelined designs, timing uncertainty grows monotonically as data propagates through gates and other logic elements. Our designs propagate a timing pulse along with the data values, and our logic elements have delays that decrease in the presence of the pulse. This produces a “surfing ” effect wherein events are bound in close proximity to the timing pulse. This produces a robust variant of wave-pipelining where timing dispersion is bounded regardless of the length of the pipeline. We demonstrate our approach with the design of a simple proof-of-concept chip. 1

Brian D. Winters; Mark R. Greenstreet

2003-01-01T23:59:59.000Z

59

Hybridization of intelligent techniques and ARIMA models for time series prediction  

Science Conference Proceedings (OSTI)

Traditionally, the autoregressive moving average (ARMA) model has been one of the most widely used linear models in time series prediction. Recent research activities in forecasting with artificial neural networks (ANNs) suggest that ANNs can be a promising ... Keywords: ARIMA models, Fuzzy systems, Hybrid system, Neural networks, Time series

O. Valenzuela; I. Rojas; F. Rojas; H. Pomares; L. J. Herrera; A. Guillen; L. Marquez; M. Pasadas

2008-04-01T23:59:59.000Z

60

Hybrid power management in real time embedded systems: an interplay of DVFS and DPM techniques  

Science Conference Proceedings (OSTI)

Energy-aware scheduling of real time applications over multiprocessor systems is considered in this paper. Early research reports that while various energy-saving policies, for instance Dynamic Power Management (DPM) and Dynamic Voltage & Frequency ... Keywords: Dynamic power management, Dynamic voltage & frequency scaling, Energy, Machine learning, Multiprocessor scheduling, Power, Real time systems

Muhammad Khurram Bhatti; Cécile Belleudy; Michel Auguin

2011-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "techniques time frame" 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

High performance data mining in time series: techniques and case studies  

Science Conference Proceedings (OSTI)

As extremely large time series data sets grow more prevalent in a wide variety of settings, we face the significant challenge of developing efficient analysis methods. This dissertation addresses the problem in designing fast, scalable algorithms for ...

Yunyue Zhu / Dennis Shasha

2004-01-01T23:59:59.000Z

62

Bias Elimination and Scatter in Lightning Location by the VLF Arrival Time Difference Technique  

Science Conference Proceedings (OSTI)

In the very low frequency (VLF) band lightning flashes are detectable at ranges of several thousand kilometers. Studies of experimental data show that if systematic biases were eliminated from the U.K. Meteorological Office's VLF arrival time ...

Anthony C. L. Lee

1990-10-01T23:59:59.000Z

63

Development of Fast-Time Simulation Techniques to Model Safety Issues in the National Airspace System  

E-Print Network (OSTI)

NASA nm PIREP RAM RFS RTI SJSU SOM UCB Aviation PerformanceHLA interface standards and RTI software. Demonstration ofits Run-Time Interface (RTI) appears to be a very efficient

2002-01-01T23:59:59.000Z

64

A.: Sparse fusion frames: existence and construction  

E-Print Network (OSTI)

Abstract. Fusion frame theory is an emerging mathematical theory that provides a natural framework for performing hierarchical data processing. A fusion frame is a frame-like collection of subspaces in a Hilbert space, thereby generalizing the concept of a frame for signal representation. In this paper, we study the existence and construction of fusion frames. We first present a complete characterization of a special class of fusion frames, called Parseval fusion frames. The value of Parseval fusion frames is that the inverse fusion frame operator is equal to the identity and therefore signal reconstruction can be performed with minimal complexity. We then introduce two general methods – the spatial complement and the Naimark complement – for constructing a new fusion frame from a given fusion frame. We then establish existence conditions for fusion frames with desired properties. In particular, we address the following question: Given M, N, m ? N and {?j} M j=1, does there exist a fusion frame in RM with N subspaces of dimension m for which {?j} M j=1 are the eigenvalues of the associated fusion frame operator? We address this problem by providing an algorithm which computes such a fusion frame for almost any collection of parameters M, N, m ? N and {?j} M j=1. Moreover, we show how this procedure can be applied, if subspaces are to be added to a given fusion frame to force it to become Parseval. 1.

Robert Calderbank; Peter G. Casazza; Andreas Heinecke; Gitta Kutyniok; Ali Pezeshki

2011-01-01T23:59:59.000Z

65

Examining the Linkage Between FRAMES and GMS  

Science Conference Proceedings (OSTI)

Because GMS provides so many features, of which some are also addressed by FRAMES, it could represent a platform to link to FRAMES, or FRAMES could represent a platform to link to GMS. The focus of this summary is to examine the strengths and weaknesses of the potential linkage direction and provide recommendations for the linkage between FRAMES and GMS.

Whelan, Gene; Castleton, Karl J.

2006-02-13T23:59:59.000Z

66

Estimating the Most Steady Frame of Reference from Doppler Radar Data  

Science Conference Proceedings (OSTI)

A method is described to determine the most steady frame of reference of a weather system from data from one or more Doppler radars at three analysis times. The most steady frame of reference is that frame in which the velocity field displays the ...

Thomas Matejka

2002-07-01T23:59:59.000Z

67

Application of Particle Swarm Optimization technique for achieving desired milled surface roughness in minimum machining time  

Science Conference Proceedings (OSTI)

Face milling is a widely used machining operation to produce various components. The finished component depends not only on the dimensional accuracy but also on the surface finish. The present method of selection of machining parameters by trial and ... Keywords: Face milling, Machining parameters, Machining time, Particle Swarm Optimization, Surface roughness

S. Bharathi Raja; N. Baskar

2012-04-01T23:59:59.000Z

68

Stabilizing technique for AC-DC boost PFC converter based on time delay feedback  

Science Conference Proceedings (OSTI)

It is well known that the ac-dc power factor correction (PFC) boost preregulator can present instability at the line frequency. This nonlinear phenomenon can jeopardize the system performances by increasing the total harmonic distortion and decreasing ... Keywords: ac-dc converters, line frequency instability, power factor correction (PFC), time delay feedback (TDF)

Abdelali El Aroudi; Mohamed Orabi

2010-01-01T23:59:59.000Z

69

Progress towards a low-cost high-speed real-time multi-rate simulator  

Science Conference Proceedings (OSTI)

Recent research has focused on developing techniques that use field-programmable gate arrays (FPGAs) to support real-time simulation with frame times of a few microseconds or less. These techniques can be used to simulate, for example, modern power electronic ... Keywords: FPGA, distributed, high-speed, multi-rate, real-time

John Zenor; Dale Word; Richard Bednar; Roy Crosbie; Narain Hingorani

2010-07-01T23:59:59.000Z

70

Ultra-fast framing camera tube  

DOE Patents (OSTI)

An electronic framing camera tube features focal plane image dissection and synchronized restoration of the dissected electron line images to form two-dimensional framed images. Ultra-fast framing is performed by first streaking a two-dimensional electron image across a narrow slit, thereby dissecting the two-dimensional electron image into sequential electron line images. The dissected electron line images are then restored into a framed image by a restorer deflector operated synchronously with the dissector deflector. The number of framed images on the tube's viewing screen is equal to the number of dissecting slits in the tube. The distinguishing features of this ultra-fast framing camera tube are the focal plane dissecting slits, and the synchronously-operated restorer deflector which restores the dissected electron line images into a two-dimensional framed image. The framing camera tube can produce image frames having high spatial resolution of optical events in the sub-100 picosecond range.

Kalibjian, Ralph (1051 Batavia Ave., Livermore, CA 94550)

1981-01-01T23:59:59.000Z

71

Framed Morse functions on surfaces  

Science Conference Proceedings (OSTI)

Let M be a smooth, compact, not necessarily orientable surface with (maybe empty) boundary, and let F be the space of Morse functions on M that are constant on each component of the boundary and have no critical points at the boundary. The notion of framing is defined for a Morse function f element of F. In the case of an orientable surface M this is a closed 1-form {alpha} on M with punctures at the critical points of local minimum and maximum of f such that in a neighbourhood of each critical point the pair (f,{alpha}) has a canonical form in a suitable local coordinate chart and the 2-form df and {alpha} does not vanish on M punctured at the critical points and defines there a positive orientation. Each Morse function on M is shown to have a framing, and the space F endowed with the C{sup {infinity}-}topology is homotopy equivalent to the space F of framed Morse functions. The results obtained make it possible to reduce the problem of describing the homotopy type of F to the simpler problem of finding the homotopy type of F. As a solution of the latter, an analogue of the parametric h-principle is stated for the space F. Bibliography: 41 titles.

Kudryavtseva, Elena A; Permyakov, Dmitrii A [M. V. Lomonosov Moscow State University, Faculty of Mechanics and Mathematics, Moscow (Russian Federation)

2010-06-09T23:59:59.000Z

72

A fully second order implicit/explicit time integration technique for hydrodynamics plus nonlinear heat conduction problems  

SciTech Connect

We present a fully second order implicit/explicit time integration technique for solving hydrodynamics coupled with nonlinear heat conduction problems. The idea is to hybridize an implicit and an explicit discretization in such a way to achieve second order time convergent calculations. In this scope, the hydrodynamics equations are discretized explicitly making use of the capability of well-understood explicit schemes. On the other hand, the nonlinear heat conduction is solved implicitly. Such methods are often referred to as IMEX methods. The Jacobian-Free Newton Krylov (JFNK) method (e.g. ) is applied to the problem in such a way as to render a nonlinearly iterated IMEX method. We solve three test problems in order to validate the numerical order of the scheme. For each test, we established second order time convergence. We support these numerical results with a modified equation analysis (MEA). The set of equations studied here constitute a base model for radiation hydrodynamics.

Kadioglu, Samet Y. [Multiphysics Methods Group, Reactor Physics Analysis and Design, Idaho National Laboratory, P.O. Box 1625, MS 3840, Idaho Falls, ID 83415 (United States)], E-mail: Samet.Kadioglu@inl.gov; Knoll, Dana A. [Multiphysics Methods Group, Reactor Physics Analysis and Design, Idaho National Laboratory, P.O. Box 1625, MS 3840, Idaho Falls, ID 83415 (United States)], E-mail: dana.knoll@inl.gov

2010-05-01T23:59:59.000Z

73

Molecular-Frame Angular Distributions of Resonant Auger Electrons  

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

Molecular-Frame Angular Distributions of Resonant Auger Electrons Print Molecular-Frame Angular Distributions of Resonant Auger Electrons Print Molecular-frame electron angular distribution (MFAD) measurements provide access to an unprecedented level of detailed information about phenomena involving quantum coherence, such as phases of photoelectron waves, symmetry breaking in molecular dissociation, core-hole localization in molecules, and molecular double-slit interference, all of which are hidden in conventional gas-phase electron spectroscopy, owing to the random orientation of the molecules. While most MFAD studies to date have focused on photoelectrons, an international team of scientists from Western Michigan University, the ALS, and Tohoku University in Japan has successfully used a novel approach to determine for the first time the molecular-frame angular distributions of resonantly excited Auger electrons in carbon monoxide.

74

Molecular-Frame Angular Distributions of Resonant Auger Electrons  

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

Molecular-Frame Angular Distributions of Resonant Auger Electrons Print Molecular-Frame Angular Distributions of Resonant Auger Electrons Print Molecular-frame electron angular distribution (MFAD) measurements provide access to an unprecedented level of detailed information about phenomena involving quantum coherence, such as phases of photoelectron waves, symmetry breaking in molecular dissociation, core-hole localization in molecules, and molecular double-slit interference, all of which are hidden in conventional gas-phase electron spectroscopy, owing to the random orientation of the molecules. While most MFAD studies to date have focused on photoelectrons, an international team of scientists from Western Michigan University, the ALS, and Tohoku University in Japan has successfully used a novel approach to determine for the first time the molecular-frame angular distributions of resonantly excited Auger electrons in carbon monoxide.

75

Flow control techniques for real-time media applications in best-effort networks using fluid models  

E-Print Network (OSTI)

Quality of Service (QoS) in real-time media applications is an area of current interest because of the increasing demand for audio/video, and generally multimedia applications, over best effort networks, such as the Internet. Media applications are transported using the User Datagram Protocol (UDP) and tend to use a disproportionate amount of network bandwidth as they do not perform congestion or flow control. Methods for application QoS control are desirable to enable users to perceive a consistent media quality. This can be accomplished by either modifying current protocols at the transport layer or by implementing new control algorithms at the application layer irrespective of the protocol used at the transport layer. The objective of this research is to improve the QoS delivered to end-users in real-time applications transported over best-effort packet-switched networks. This is accomplished using UDP at the transport layer, along with adaptive predictive and reactive control at the application layer. An end-to-end fluid model is used, including the source buffer, the network and the destination buffer. Traditional control techniques, along with more advanced adaptive predictive control methods, are considered in order to provide the desirable QoS and make a best-effort network an attractive channel for interactive multimedia applications. The effectiveness of the control methods, is examined using a Simulink-based fluid-level simulator in combination with trace files extracted from the well-known network simulator ns-2. The results show that improvement in real-time applications transported over best-effort networks using unreliable transport protocols, such as UDP, is feasible. The improvement in QoS is reflected in the reduction of flow loss at the expense of flow dead-time increase or playback disruptions or both.

Konstantinou, Apostolos

2004-08-01T23:59:59.000Z

76

Building Energy Software Tools Directory: Frame Simulator  

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

Frame Simulator Frame Simulator Frame Simulator logo Frame Simulator makes calculation of the thermal transmittance in windows and building components an extremely easy process. It can be used to: analyze how heat flows through building components and fenestrations estimate surface temperatures and predict condensation problems discover weak points in window frames calculate thermal transmittance Uf and linear conductance Lf2d of any type of window frame as well as the Uw thermal transmittance of entire complex fenestration. Precise simulation of the heat transfer is performed using a two-dimensional numerical method for steady state boundary conditions conforming to ISO 10077-2 (finite elements). Screen Shots Keywords 2D, heat transfer, thermal analysis, thermal transmittance, thermal

77

Capturing episodes: may the frame be with you  

Science Conference Proceedings (OSTI)

We are interested in detecting episodes in a data stream that are characterized by a period of time over which a condition holds, usually with a minimum duration. For example, we might want to know whenever any router has a packet-drop rate above 0.3% ... Keywords: DSMS, NiagaraST, data streams, episodes, frames, windows

David Maier; Michael Grossniklaus; Sharmadha Moorthy; Kristin Tufte

2012-07-01T23:59:59.000Z

78

Advanced Framing | Building Energy Codes Program  

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

can increase the thermal efficiency of the wall system. Less framing allows more insulation to be installed and also eliminates hot and cold spots (from thermal bridging...

79

Frame transforms, star products and quantum mechanics on phase space  

E-Print Network (OSTI)

Using the notions of frame transform and of square integrable projective representation of a locally compact group $G$, we introduce a class of isometries (tight frame transforms) from the space of Hilbert-Schmidt operators in the carrier Hilbert space of the representation into the space of square integrable functions on the direct product group $G\\times G$. These transforms have remarkable properties. In particular, their ranges are reproducing kernel Hilbert spaces endowed with a suitable 'star product' which mimics, at the level of functions, the original product of operators. A 'phase space formulation' of quantum mechanics relying on the frame transforms introduced in the present paper, and the link of these maps with both the Wigner transform and the wavelet transform are discussed.

P. Aniello; V. I. Man'ko; G. Marmo

2008-02-28T23:59:59.000Z

80

Building Energy Software Tools Directory: FRAME4  

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

FRAME4 FRAME4 FRAME4 logo. Uses two-dimensional finite-volume analysis to evaluate heat transfer through complex building components. FRAME is part of the FRAMEplus toolkit for analysis of windows, doors, walls, roofs and below-grade assemblies. Users draw building components as assemblies of cross-sections. Any interior or exterior environmental condition can be applied. .DXF files and VISION4 files can be imported to speed up data entry. Results are displayed graphically and are used to determine heat transfer, potential for thermal bridging and surface condensation. The FRAME4 simulations (when combined with VISION) are an equal alternative to testing to determine the U-value and solar heat gain coefficient of windows and doors. The U.S. National Fenestration Rating Council and Canadian Standard Association recognize

Note: This page contains sample records for the topic "techniques time frame" 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

Integrated seat frame and back support  

DOE Patents (OSTI)

An integrated seating device comprises a seat frame having a front end and a rear end. The seat frame has a double wall defining an exterior wall and an interior wall. The rear end of the seat frame has a slot cut therethrough both the exterior wall and the interior wall. The front end of the seat frame has a slot cut through just the interior wall thereof. A back support comprising a generally L shape has a horizontal member, and a generally vertical member which is substantially perpendicular to the horizontal member. The horizontal member is sized to be threaded through the rear slot and is fitted into the front slot. Welded slat means secures the back support to the seat frame to result in an integrated seating device.

Martin, Leo (Coconut Grove, FL)

1999-01-01T23:59:59.000Z

82

Racial Framing and the Multiracial Movement  

E-Print Network (OSTI)

In the 1990s, multiracial advocacy organizations emerged as a national movement. The primary purpose of this movement was to obtain recognition of multiracial identity by the U.S. government. Though possessing a common goal, the organizations within the movement advocated for multiracialism through different racial frames. Using extended case methodology, this study seeks to identify the racial frames utilized by the multiracial movement. Through in-depth interviews with founders and presidents, current and past, of multiracial advocacy organizations, I extend the current literature on racial framing. After critical analysis of my interviews, I identify the presence of the traditional white racist frame as well as a racial counter-frame. Reviewing the elements of both frameworks, I discuss how the use of these frames affects the struggle for racial justice in the United States. Finally, using Bell's principle of interest convergence, I conclude with an examination of how the utilization of the traditional white racist frame by the multiracial movement and the interest of whites in maintaining social domination resulted in the "mark all that apply" decision by the Office and Management and Budget.

Couch, Todd Christopher

2011-05-01T23:59:59.000Z

83

Self-aligning biaxial load frame  

DOE Patents (OSTI)

An self-aligning biaxial loading apparatus for use in testing the strength of specimens while maintaining a constant specimen centroid during the loading operation. The self-aligning biaxial loading apparatus consists of a load frame and two load assemblies for imparting two independent perpendicular forces upon a test specimen. The constant test specimen centroid is maintained by providing elements for linear motion of the load frame relative to a fixed cross head, and by alignment and linear motion elements of one load assembly relative to the load frame. 3 figures.

Ward, M.B.; Epstein, J.S.; Lloyd, W.R.

1994-01-18T23:59:59.000Z

84

Chaotic inflation in Jordan frame supergravity  

E-Print Network (OSTI)

We consider the inflationary scenario with non-minimal coupling in 4D Jordan frame supergravity. We find that there occurs a tachyonic instability along the direction of the accompanying non-inflaton field in generic Jordan frame supergravity models. We propose a higher order correction to the Jordan frame function for solving the tachyonic mass problem and show that the necessary correction can be naturally generated by the heavy thresholds without spoiling the slow-roll conditions. We discuss the implication of the result on the Higgs inflation in NMSSM.

Hyun Min Lee

2010-05-16T23:59:59.000Z

85

A two-point boundary value problem on a Lorentz manifold arising in A. Poltorak's concept of reference frame  

E-Print Network (OSTI)

In A. Poltorak's concept, the reference frame in General Relativity is a certain manifold equipped with a connection. The question under consideration here is whether it is possible to join two events in the space-time by a time-like geodesic if they are joined by a geodesic of the reference frame connection that has a time-like initial vector. This question is interpreted as whether an event belongs to the proper future of another event in the space-time in case it is so in the reference frame. For reference frames of two special types some geometric conditions are found under which the answer is positive.

Yu. E. Gliklikh; P. S. Zykov

2006-10-12T23:59:59.000Z

86

State-of-the-Art Highly Insulating Window Frames - Research and Market Review  

DOE Green Energy (OSTI)

This document reports the findings of a market and research review related to state-of-the-art highly insulating window frames. The market review focuses on window frames that satisfy the Passivhaus requirements (window U-value less or equal to 0.8 W/m{sup 2}K ), while other examples are also given in order to show the variety of materials and solutions that may be used for constructing window frames with a low thermal transmittance (U-value). The market search shows that several combinations of materials are used in order to obtain window frames with a low U-value. The most common insulating material seems to be Polyurethane (PUR), which is used together with most of the common structural materials such as wood, aluminum, and PVC. The frame research review also shows examples of window frames developed in order to increase the energy efficiency of the frames and the glazings which the frames are to be used together with. The authors find that two main tracks are used in searching for better solutions. The first one is to minimize the heat losses through the frame itself. The result is that conductive materials are replaced by highly thermal insulating materials and air cavities. The other option is to reduce the window frame area to a minimum, which is done by focusing on the net energy gain by the entire window (frame, spacer and glazing). Literature shows that a window with a higher U-value may give a net energy gain to a building that is higher than a window with a smaller U-value. The net energy gain is calculated by subtracting the transmission losses through the window from the solar energy passing through the windows. The net energy gain depends on frame versus glazing area, solar factor, solar irradiance, calculation period and U-value. The frame research review also discusses heat transfer modeling issues related to window frames. Thermal performance increasing measures, surface modeling, and frame cavity modeling are among the topics discussed. The review shows that the current knowledge gives the basis for improving the calculation procedures in the calculation standards. At the same time it is room for improvement within some areas, e.g. to fully understand the natural convection effects inside irregular vertical frame cavities (jambs) and ventilated frame cavities.

Gustavsen, Arild; Jelle, Bjorn Petter; Arasteh, Dariush; Kohler, Christian

2007-01-01T23:59:59.000Z

87

Quantization and erasures in frame representations  

E-Print Network (OSTI)

Frame representations, which correspond to overcomplete generalizations to basis expansions, are often used in signal processing to provide robustness to errors. In this thesis robustness is provided through the use of ...

Boufounos, Petros T., 1977-

2006-01-01T23:59:59.000Z

88

Quantization Noise Shaping on Arbitrary Frame Expansions  

E-Print Network (OSTI)

Quantization noise shaping is commonly used in oversampled A/D and D/A converters with uniform sampling. This paper considers quantization noise shaping for arbitrary finite frame expansions based on generalizing the view ...

Boufounos, Petros T.

89

Frame Optimization of a Hybrid Spyder Roadster  

Science Conference Proceedings (OSTI)

But, the addition of electric components (e-motor, lithium-ion battery…) ... project is to reduce the frame weight in an effort to limit the total weight of the vehicle.

90

Frame moduli of unconsolidated sands and sandstones  

SciTech Connect

In this study, the authors investigate the elastic moduli of the empty grain framework (the frame moduli) in unconsolidated sands and consolidated sandstones. The work was done to improve the interpretation of seismic amplitude anomalies and amplitude variations with offset (AVO) associated with hydrocarbon reservoirs. They developed a laboratory apparatus to measure the frame Poisson's ratio and Young's modulus of unconsolidated sands at seismic frequencies (0.2 to 155 Hz) in samples approximately 11 cm long. They used ultrasonic pulse velocity measurements to measure the frame moduli of consolidated sandstones. They found that the correlation coefficient between the frame Poisson's ratio [sigma][sub A] and the mineral Poisson's ratio [sigma][sub M] is 0.84 in consolidated sandstones and only 0.28 in unconsolidated sands. The range of [sigma][sub A] values in unconsolidated sands is 0.115 to 0.237 (mean = 0.187, standard deviation = 0.030), and [sigma][sub A] cannot be estimated without core or log analyses. Frame moduli analyses of core samples can be used to calibrate the interpretation of seismic amplitude anomalies and AVO effects. For use in areas without core or log analyses, the authors developed an empirical relation that can be used to estimate [sigma][sub A] in unconsolidated sands and sandstones from [sigma][sub M] and the frame P-wave modulus.

Spencer, J.W. Jr.; Cates, M.E.; Thompson, D.D. (Chevron Petroleum Technology Co., La Habra, CA (United States))

1994-09-01T23:59:59.000Z

91

Rethinking Sustainability on Planet Earth: A Time for New Framings  

E-Print Network (OSTI)

2009). Carbon shift: How peak oil and the climate crisisEds. ), Carbon shift: How peak oil and the climate crisisof climate change, peak oil, and environmental degradation

Dylan, Arielle

2012-01-01T23:59:59.000Z

92

An Exact Combinatorial Analysis for the Performance Evaluation of Framed Slotted Aloha Systems with Diversity Transmission Over Erasable Wireless Channels  

Science Conference Proceedings (OSTI)

Framed Slotted Aloha (FSA) protocols are widely used in various communication systems. This paper investigates the performance of FSA systems that employ diversity transmission (DT) techniques over erasable wireless channels. Two DT schemes, DT-SWIR ... Keywords: Activity factor, Diversity transmission, Erasable channels, Framed slotted Aloha, Sampling with/without replacement

In-Hang Chung; Ming-Ching Yen

2013-04-01T23:59:59.000Z

93

Modeling Laser Wakefield Accelerators in a Lorentz Boosted Frame  

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

Laser Wakefield Accelerators in a Lorentz Boosted Frame Modeling Laser Wakefield Accelerators in a Lorentz Boosted Frame VayBoost.gif An image showing the "boosted frame," in which...

94

What’s the Issue? Changing Frames of Ethanol Policy in Congress and the Media  

E-Print Network (OSTI)

gas prices in the summer months, when they tend to be highest. This trendgas prices since this time was not mirrored in energy frame use. Figure 18 shows this trend

Weiner, Sarah

2012-01-01T23:59:59.000Z

95

Content Analysis for Proactive Intelligence: Marshaling Frame Evidence.  

Science Conference Proceedings (OSTI)

Modeling and simulation have great potential as technologies capable of aiding analysts in making accurate predictions of future situations to help provide competitive advantage and avoid strategic surprise. However, to make modeling and simulation effective, an evidence-marshaling process is needed that addresses the information needs of the modeling task, as detailed by subject matter experts. We suggest that such an evidence-marshaling process can be obtained by combining natural language processing and content analysis techniques to provide quantified qualitative content assessments, and describe a case study on the acquisition and marshaling of frames from unstructured text.

Sanfilippo, Antonio [Pacific Northwest National Laboratory (PNNL); Cowell, Andrew [Pacific Northwest National Laboratory (PNNL); Pouchard, Line Catherine [ORNL

2007-07-01T23:59:59.000Z

96

Molecular-Frame Angular Distributions of Resonant Auger Electrons  

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

new insights in the dynamic world of molecular phenomena. The molecular frame is the natural reference frame for the study of molecules and their interaction with electromagnetic...

97

Conformally flat spacetimes and Weyl frames  

E-Print Network (OSTI)

We discuss the concepts of Weyl and Riemann frames in the context of metric theories of gravity and state the fact that they are completely equivalent as far as geodesic motion is concerned. We apply this result to conformally flat spacetimes and show that a new picture arises when a Riemannian spacetime is taken by means of geometrical gauge transformations into a Minkowskian flat spacetime. We find out that in the Weyl frame gravity is described by a scalar field. We give some examples of how conformally flat spacetime configurations look when viewed from the standpoint of a Weyl frame. We show that in the non-relativistic and weak field regime the Weyl scalar field may be identified with the Newtonian gravitational potential. We suggest an equation for the scalar field by varying the Einstein-Hilbert action restricted to the class of conformally-flat spacetimes. We revisit Einstein and Fokker's interpretation of Nordstr\\"om scalar gravity theory and draw an analogy between this approach and the Weyl gauge formalism. We briefly take a look at two-dimensional gravity as viewed in the Weyl frame and address the question of quantizing a conformally flat spacetime by going to the Weyl frame.

C. Romero; J. B. Fonseca-Neto; M. L. Pucheu

2011-01-27T23:59:59.000Z

98

Mapping Diffuse Seismicity Using Empirical Matched Field Processing Techniques  

DOE Green Energy (OSTI)

The objective of this project is to detect and locate more microearthquakes using the empirical matched field processing (MFP) method than can be detected using only conventional earthquake detection techniques. We propose that empirical MFP can complement existing catalogs and techniques. We test our method on continuous seismic data collected at the Salton Sea Geothermal Field during November 2009 and January 2010. In the Southern California Earthquake Data Center (SCEDC) earthquake catalog, 619 events were identified in our study area during this time frame and our MFP technique identified 1094 events. Therefore, we believe that the empirical MFP method combined with conventional methods significantly improves the network detection ability in an efficient matter.

Wang, J; Templeton, D C; Harris, D B

2011-01-21T23:59:59.000Z

99

A Real-Time, Three-Dimensional, Rapidly Updating, Heterogeneous Radar Merger Technique for Reflectivity, Velocity, and Derived Products  

Science Conference Proceedings (OSTI)

With the advent of real-time streaming data from various radar networks, including most Weather Surveillance Radars-1988 Doppler and several Terminal Doppler Weather Radars, it is now possible to combine data in real time to form 3D multiple-...

Valliappa Lakshmanan; Travis Smith; Kurt Hondl; Gregory J. Stumpf; Arthur Witt

2006-10-01T23:59:59.000Z

100

A comparison of diagnostic techniques for detecting salmonella spp in equine fecal samples using culture methods, gel-based pcr, and real-time pcr assays  

E-Print Network (OSTI)

Salmonellae are enteric bacteria infecting animals and humans. Large animal clinics and Veterinary Teaching Hospitals are greatly affected by Salmonella outbreaks and nosocomial infection. The risk of environmental contamination and spread of infection is increased when animals are confined in close contact with each other and subjected to increased stress factors. This study was designed to compare double-enrichment culture techniques with Gel-based and Real-time PCR assays in the quest for improved diagnostic methods for detecting Salmonella in equine fecal samples. 120 fecal samples submitted to the Clinical Microbiology Laboratory of the Veterinary Medical Teaching Hospital at Texas A&M University (CML, VMTH, TAMU) were tested for Salmonella using all three techniques. Double-enrichment bacterial culture detected 29 positive results (24%), Real-time PCR detected 33 positive results (27.5%), and Gel-based PCR detected 73 positives results (60.8%). While culture and real-time PCR methods had similar results, the gel-based PCR method detected many more positive results, indicating probable amplicon contamination. Real-time PCR can be completed as soon as the day after submission while culture techniques may take 2 to 5 days to complete. However, viable bacterial cells are needed for antimicrobial susceptibility testing and serotyping: both important for epidemiological studies. Therefore, double-enrichment bacterial culture performed concurrently with real-time PCR methods could be efficient in clinical settings where both accurate and expedient results are required.

Smith, Shelle Ann

2003-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "techniques time frame" 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

An Operational System for the Remote Location of Lightning Flashes Using a VLF Arrival Time Difference Technique  

Science Conference Proceedings (OSTI)

An operational system for the remote location of lightning flashes at ranges of thousands of kilometers is presented. The vertical electric fields of VLF radio atmospherics (sferics), together with time data, are observed at a network of just ...

Anthony C. L. Lee

1986-12-01T23:59:59.000Z

102

Urban emissions of CO2 from Davos, Switzerland: the first real-time monitoring system using an atmospheric inversion technique  

Science Conference Proceedings (OSTI)

Anthropogenic emissions from urban areas represent 70% of the fossil fuel carbon emitted globally according to carbon emission inventories. We present here the first operational system able to monitor in near real-time daily emission estimates, ...

Thomas Lauvaux; Natasha L. Miles; Scott J. Richardson; Aijun Deng; Dave Stauffer; Kenneth J. Davis; Gloria Jacobson; Chris Rella; Gian-Paul Calonder; Philip L. DeCola

103

A study of detonation timing and fragmentation using 3-D finite element techniques and a damage constitutive model  

SciTech Connect

The transient dynamics finite element computer program, PRONTO-3D, has been used in conjunction with a damage constitutive model to study the influence of detonation timing on rock fragmentation during blasting. The primary motivation of this study is to investigate the effectiveness of precise detonators in improving fragmentation. PRONTO-3D simulations show that a delay time of 0.0 sec between adjacent blastholes results in significantly more fragmentation than a 0.5 ms delay.

Preece, D.S.; Thorne, B.J.

1996-03-01T23:59:59.000Z

104

Analysing sequences of TV-frames  

Science Conference Proceedings (OSTI)

A system is being implemented to analyse sequences of TV-frames from real world scenes like a street intersection with cars. A monocular black/white TV-camera will record - without changing its position or viewing direction - a scene in realtime on an ...

H.-H. Nagel

1977-08-01T23:59:59.000Z

105

STATE OF CALIFORNIA FRAMING STAGE CHECKLIST  

E-Print Network (OSTI)

on the building plans with diagrams and/or specific design drawings indicating the R-value of insulation COMMISSION INSTALLATION CERTIFICATE CF-6R-ENV-21-HERS Quality Insulation Installation (QII) - Framing Stage Checklist (Page 1 of 2) Site Address: Enforcement Agency: Permit Number: Quality Insulation Installation

106

Jordan Frame Supergravity and Inflation in NMSSM  

E-Print Network (OSTI)

We present a complete explicit N=1, d=4 supergravity action in an arbitrary Jordan frame with non-minimal scalar-curvature coupling of the form $\\Phi(z, \\bar z)\\, R$. The action is derived by suitably gauge-fixing the superconformal action. The theory has a modified Kaehler geometry, and it exhibits a significant dependence on the frame function $\\Phi (z, \\bar z)$ and its derivatives over scalars, in the bosonic as well as in the fermionic part of the action. Under certain simple conditions, the scalar kinetic terms in the Jordan frame have a canonical form. We consider an embedding of the Next-to-Minimal Supersymmetric Standard Model (NMSSM) gauge theory into supergravity, clarifying the Higgs inflation model recently proposed by Einhorn and Jones. We find that the conditions for canonical kinetic terms are satisfied for the NMSSM scalars in the Jordan frame, which leads to a simple action. However, we find that the gauge singlet field experiences a strong tachyonic instability during inflation in this model. Thus, a modification of the model is required to support the Higgs-type inflation.

Sergio Ferrara; Renata Kallosh; Andrei Linde; Alessio Marrani; Antoine Van Proeyen

2010-04-05T23:59:59.000Z

107

The estimation techniques of the time series correlations in nuclear reactor calculations by the Monte Carlo method using multiprocessor computers  

Science Conference Proceedings (OSTI)

The algorithms of estimation of the time series correlation functions in nuclear reactor calculations using the Monte Carlo method are described. Correlation functions are used for the estimation of biases, for calculations of variance taking into account the correlations between neutron generations, and for choosing skipped generations.

Kalugin, M. A.; Oleynik, D. S.; Sukhino-Khomenko, E. A., E-mail: sukhino-khomenko@adis.vver.kiae.ru [National Research Centre Kurchatov Institute (Russian Federation)

2012-12-15T23:59:59.000Z

108

Use of time history speckle pattern and pulsed photoacoustic techniques to detect the self-accommodating transformation in a Cu-Al-Ni shape memory alloy  

Science Conference Proceedings (OSTI)

Continuous and pulsed electromagnetic radiation was used to detect the self-accommodation mechanism on a polycrystalline Cu-13.83 wt.%Al-2.34 wt.%Ni shape memory alloy. Rectangular samples of this alloy were mechanically polished to observe the austenite and martensite phases. The samples were cooled in liquid nitrogen prior to the experiments to obtain the martensite phase. Using a dynamic speckle technique with a continuous wave laser we obtained the time history of the speckle pattern image and monitored the surface changes caused by the self-accommodation mechanism during the inverse (martensitic to austenitic) transformation. Using a photoacoustic technique based on a pulsed laser source it was also possible to detect the self-accommodation phenomena in a bulk sample. For comparison purposes, we used differential scanning calorimetry (DSC) to detect the critical temperatures of transformation and use these as reference to evaluate the performance of the optical and photoacoustical techniques. In all cases, the same range of temperature was obtained during the inverse transformation. From these results, we conclude that time history speckle pattern (THSP) and pulsed photoacoustic are complementary techniques; they are non-destructive and useful to detect surface and bulk martensitic transformation induced by a temperature change.

Sanchez-Arevalo, F.M., E-mail: fsanchez@iim.unam.mx [CCADET - Universidad Nacional Autonoma de Mexico, A.P. 70-186, Mexico D.F., C.P. 04510 (Mexico); Aldama-Reyna, W. [Departamento Academico de Fisica, Universidad Nacional de Trujillo, Trujillo (Peru); Lara-Rodriguez, A.G. [Instituto de Investigaciones en Materiales, Universidad Nacional Autonoma de Mexico (Mexico); Garcia-Fernandez, T. [Universidad Autonoma de la Ciudad de Mexico (UACM), Prolongacion San Isidro 151, Col. San Lorenzo Tezonco, Mexico DF, C.P. 09790 (Mexico); Pulos, G. [Instituto de Investigaciones en Materiales, Universidad Nacional Autonoma de Mexico (Mexico); Trivi, M. [Centro de Investigaciones Opticas, Universidad de la Plata (Argentina); Villagran-Muniz, M. [CCADET - Universidad Nacional Autonoma de Mexico, A.P. 70-186, Mexico D.F., C.P. 04510 (Mexico)

2010-05-15T23:59:59.000Z

109

Einstein and Jordan frames reconciled: a frame-invariant approach to scalar-tensor cosmology  

E-Print Network (OSTI)

Scalar-Tensor theories of gravity can be formulated in different frames, most notably, the Einstein and the Jordan one. While some debate still persists in the literature on the physical status of the different frames, a frame transformation in Scalar-Tensor theories amounts to a local redefinition of the metric, and then should not affect physical results. We analyze the issue in a cosmological context. In particular, we define all the relevant observables (redshift, distances, cross-sections, ...) in terms of frame-independent quantities. Then, we give a frame-independent formulation of the Boltzmann equation, and outline its use in relevant examples such as particle freeze-out and the evolution of the CMB photon distribution function. Finally, we derive the gravitational equations for the frame-independent quantities at first order in perturbation theory. From a practical point of view, the present approach allows the simultaneous implementation of the good aspects of the two frames in a clear and straightforward way.

R. Catena; M. Pietroni; L. Scarabello

2006-04-24T23:59:59.000Z

110

FULL ELECTROMAGNETIC FEL SIMULATION VIA THE LORENTZ-BOOSTED FRAME TRANSFORMATION  

SciTech Connect

Numerical electromagnetic simulation of some systems containing charged particles with highly relativistic directed motion can by speeded up by orders of magnitude by choice of the proper Lorentz-boosted frame. A particularly good application for calculation in a boosted frame isthat of short wavelength free-electron lasers (FELs) where a high energy electron beam with small fractional energy spread interacts with a static magnetic undulator. In the optimal boost frame (i.e., the ponderomotive rest frame), the red-shifted FEL radiation and blue-shifted undulator field have identical wavelengths and the number of required longitudinal grid cells and time-steps for fully electromagnetic simulation (relative to the laboratory frame) decrease by factors of gamma^2 each. In theory, boosted frame EM codes permit direct study of FEL problems for which the eikonal approximation for propagation of the radiation field and wiggler-period-averaging for the particle-field interaction may be suspect. We have adapted the WARP code to apply this method to several electromagnetic FEL problems including spontaneous emission, strong exponential gain in a seeded, single pass amplifier configuration, and emission from e-beams in undulators with multiple harmonic components. WARP has a standard relativistic macroparticle mover and a fully 3-D electromagnetic field solver. We discuss our boosted frame results and compare with those obtained using the ?standard? eikonal FEL simulation approach.

Fawley, William; Vay, Jean-Luc

2010-08-16T23:59:59.000Z

111

New novel cleaning technique for extending mean time between mechanical cleans in a Genus tungsten CVD reactor  

SciTech Connect

During the chemical vapor deposition of blanket tungsten from the reduction of tungsten hexafluoride (WF{sub 6}), metallic parts within the reaction chamber accumulate metallic tungsten, tungsten oxyfluorides, and other related tungsten species. The usual method for removal of the chamber deposits is to open the chamber and perform a labor intensive mechanical clean, which involves the use of hydrogen peroxide (H{sub 2}O{sub 2}) and deionized (DI) water, or an in-situ fluorine-base plasma clean. The authors have investigated the use of repetitive in-situ nitrogen trifluoride (NF{sub 3}) plasma cleans during the course of operating a Genuse 8721 tungsten chemical vapor deposition reactor. The Genuse reactor has been retrofitted with self-ratchetting linear slides, which allow the wafer clamps to be extended into the NF{sub 3} plasma. They have extended the mean time between failures (MTBF) due to the use of 10 minute plasma clean every 75--100 wafers. Deposition for this process is 8,000 angstroms per wafer, using 6 deposition sites. The total tungsten deposition for a 0.5 micron tungsten plug is 4 microns, per a 25 wafer lot. Instead of a total removal of the accumulated tungsten from the chamber hardware, a partial etchback of the deposition from the wafer clamps and wafer chucks was performed. With this, sources for particles and backside deposition were eliminated. They see an increase in wafer-to-wafer uniformity, lot-to-lot repeatability, and particle reduction due to the use of frequent plasma clean. Recovery time after a plasma clean is excellent and no detrimental effects from hydrogen fluoride ``poisoning`` were seen.

Lujan, R.D.; Fleming, J.G.; Baird, J.L.; Gentry, M.S. [Sandia National Labs., Albuquerque, NM (United States). Center for Microelectronics Technologies

1994-12-31T23:59:59.000Z

112

Nucleic Acid Standards - Standard Ref. Frame  

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

Standard Reference Standard Reference Standard Reference Frame Supplemental Information Ideal Geometries X-PLOR Parameters Valence Geometries RNA Ontology Consortium mmCIF Resources PDBML Resources A Standard Reference Frame for the Description of Nucleic Acid Base-pair Geometry A common point of reference is needed to describe the three-dimensional arrangements of bases and base pairs in nucleic acid structures. [1]. For example, parts of a structure, which appear "normal" according to one computational scheme, may be highly unusual according to another and vice versa. It is thus difficult to carry out comprehensive comparisons of nucleic acid structures and to pinpoint unique conformational features in individual structures. In order to resolve these issues, a group of

113

Gravitational wave astronomy: the definitive test for the "Einstein frame versus Jordan frame" controversy  

E-Print Network (OSTI)

The potential realization of a gravitational wave (GW) astronomy in next years is a great challenge for the scientific community. By giving a significant amount of new information, GWs will be a cornerstone for a better understanding of the universe and of the gravitational physics. In this paper the author shows that the GW astronomy will permit to solve a captivating issue of gravitation as it will be the definitive test for the famous "Einstein frame versus Jordan frame" controversy. In fact, we show that the motion of the test masses, i.e. the beam splitter and the mirror in the case of an interferometer, which is due to the scalar component of a GW, is different in the two frames. Thus, if a consistent GW astronomy will be realized, an eventual detection of signals of scalar GWs will permit to discriminate among the two frames. In this way, a direct evidence from observations will solve in an ultimate way the famous and long history of the "Einstein frame versus Jordan frame" controversy.

Christian Corda

2010-10-11T23:59:59.000Z

114

Comparison of Frames: Jordan vs Einstein Frame for a Non-minimal Dark Energy Model  

E-Print Network (OSTI)

We construct a dark energy model where a scalar field non-minimally coupled to gravity plays the role of the dark component. We compare cosmological consequences of this non-minimal coupling of the scalar field and gravity in the spirit of the dark energy paradigm in Jordan and Einstein frames. Some important issues such as phantom divide line crossing, existence of the bouncing solutions and the stability of the solutions are compared in these two frames. We show that while a non-minimally coupled scalar field in the Jordan frame is a suitable dark energy component with capability to realize phantom divide line crossing, its conformal transformation in the Einstein frame has not this capability. The conformal transformation from Jordan frame to Einstein frame transforms the equation of state parameter of the dark energy component to its minimal form with a redefined scalar field and in this case it is impossible to realize a phantom phase with possible crossing of the phantom divide line.

Kourosh Nozari; S. Davood Sadatian

2009-05-03T23:59:59.000Z

115

Comparison of acoustic impedance and time-amplitude analysis techniques for reservoir description of a Gulf of Mexico shelf edge Clastic Field  

SciTech Connect

Post-stack, time-amplitude techniques are routinely used in the estimation of reserves and the positioning of wells in low impedance, unconsolidated reservoir sands in the offshore Gulf of Mexico (Texas and Louisiana). Time amplitude analysis of 3D seismic data, when properly calibrated, can yield reliable estimates of net hydrocarbon pay, reservoir distribution, and volumetrics. Acoustic impedance (Al) analysis can also be used for such prospect appraisal and development work. However, the combined use of both techniques for reservoir description is not common. Some advantages in acoustic impedance (over amplitude analysis) are: (1) properly constrained Al traces better image the reservoir rock configuration (that is, they provide a more [open quotes]geologic[close quotes] view) thereby facilitating interpretation of reservoir distribution and interconnectivity, and (2) Al volumetrics methodology can provide more accurate estimates of average pay for reservoirs that are not seismically isolated from one another. A possible disadvantage is the difficulty in incorporating a proper baseline (low frequency) constraint for the required Al trace inversion. This paper reports the advantages and disadvantages of both techniques in characterizing net pay, volumetrics, and reservoir continuity in a producing Gulf of Mexico oil field in a shelf-edge delta depositional system.

Rowlett, H.E.; Holcombe, H.T.; Cohn, B.P.; Wilson, W.W.; Mills, W.H. (BP Exploration Inc., Houston, TX (United States))

1993-02-01T23:59:59.000Z

116

Nucleic Acid Standards - Standard Ref. Frame  

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

A Standard Reference Frame for the Description A Standard Reference Frame for the Description of Nucleic Acid Base-pair Geometry Supplementary Material The report is available at Journal of Molecular Biology (2001) 313: 229 - 237 and The Nucleic Acid Cartesian coordinates for A, C, G, T, and U in the optimized reference frame Adenine, Cytosine, Guanine, Thymine, Uracil Standard chemical structures taken from Clowney et al. (1996), J. Am. Chem. Soc., 118, 509-518). These data do not include C1' atoms, which are placed here in the least-squares plane of the base atoms, with the purine C1'-N9 bond length and C1'-N9-C4 valence angle set respectively to 1.46 Å and 126.5° and the pyrimidine C1'-N1 bond and C1-N1-C2 angle to 1.47 Å and 118.1°. These distances and angles are based on the average glycosyl

117

Visualizing Spacetime Curvature via Frame-Drag Vortexes and Tidal Tendexes II. Stationary Black Holes  

E-Print Network (OSTI)

When one splits spacetime into space plus time, the Weyl curvature tensor (which equals the Riemann tensor in vacuum) splits into two spatial, symmetric, traceless tensors: the tidal field $E$, which produces tidal forces, and the frame-drag field $B$, which produces differential frame dragging. In recent papers, we and colleagues have introduced ways to visualize these two fields: tidal tendex lines (integral curves of the three eigenvector fields of $E$) and their tendicities (eigenvalues of these eigenvector fields); and the corresponding entities for the frame-drag field: frame-drag vortex lines and their vorticities. These entities fully characterize the vacuum Riemann tensor. In this paper, we compute and depict the tendex and vortex lines, and their tendicities and vorticities, outside the horizons of stationary (Schwarzschild and Kerr) black holes; and we introduce and depict the black holes' horizon tendicity and vorticity (the normal-normal components of $E$ and $B$ on the horizon). For Schwarzschil...

Zhang, Fan; Nichols, David A; Chen, Yanbei; Lovelace, Geoffrey; Matthews, Keith D; Owen, Robert; Thorne, Kip S

2012-01-01T23:59:59.000Z

118

A coherent acceleration search of the Parkes multi-beam pulsar survey - techniques and the discovery and timing of 16 pulsars  

E-Print Network (OSTI)

A fully coherent acceleration search algorithm has been applied to the Parkes multi- beam pulsar survey of the Galactic plane to search for previously undiscovered relativistic binary pulsars. The search has resulted in the discovery of 16 pulsars including a binary millisecond pulsar and an intermittent pulsar. Despite a number of promising candidates there have been no new discoveries of relativistic binary pulsars. Here we detail the acceleration search performed in our analysis and present coherent timing solutions for each of pulsars discovered. In light of the lack of discoveries of relativistic binary pulsars, we also discuss the technique of acceleration searching and its effectiveness in finding these systems.

Eatough, R P; Lyne, A G; Keith, M J

2013-01-01T23:59:59.000Z

119

SolarFrameWorks Co | Open Energy Information  

Open Energy Info (EERE)

Zip 80202 Product This company provides framing and mounting systems to the PV industry. References SolarFrameWorks Co1 LinkedIn Connections CrunchBase Profile No...

120

Assessing the impact of frame semantics on textual entailment  

Science Conference Proceedings (OSTI)

In this article, we underpin the intuition that frame semantic information is a useful resource for modelling textual entailment. To this end, we provide a manual frame semantic annotation for the test set used in the second recognizing textual entailment ...

Aljoscha Burchardt; Marco Pennacchiotti; Stefan Thater; Manfred Pinkal

2009-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "techniques time frame" 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

Geodesic Reduction via Frame Bundle Geometry  

E-Print Network (OSTI)

A manifold with an arbitrary affine connection is considered and the geodesic spray associated with the connection is studied in the presence of a Lie group action. In particular, results are obtained that provide insight into the structure of the reduced dynamics associated with the given invariant affine connection. The geometry of the frame bundle of the given manifold is used to provide an intrinsic description of the geodesic spray. A fundamental relationship between the geodesic spray, the tangent lift and the vertical lift of the symmetric product is obtained, which provides a key to understanding reduction in this formulation.

Bhand, Ajit

2010-01-01T23:59:59.000Z

122

Design and implementation of a supercomputer frame buffer system  

SciTech Connect

A 512 by 512 pixel by 8 bits per pixel frame buffer has been designed, constructed, and installed on a 48 Mbit/s I/O channel of a Cray X-MP 4/16 supercomputer. This project was undertaken to test whether such a system would be useful and, if so, how it would be used. Supporting software provides the ability to convert vector graphics description files into raster format, to show raster movies interactively, and to show vector files by real-time conversion from vector to raster formats. We have shown that real-time animations in an interactive supercomputer environment are feasible and useful with this system. 6 refs., 3 figs.

Fowler, J.D. Jr.; McGowen, M.

1988-01-01T23:59:59.000Z

123

Installation of a fast framing visible camera on KSTAR  

Science Conference Proceedings (OSTI)

Visible camera technologies have made remarkable progress in recent years, and the fast camera has proven itself to be a capable imaging diagnostic in studies of specific fusion plasma issues such as the start-up physics, plasma wall interactions, edge-localized modes, and disruptions. For the purpose of favorable visible imaging, a fast framing camera has recently been installed on the Korea Superconducting Tokamak Advanced Research (KSTAR) device. The camera uses a complementary metal-oxide semiconductor detector with a maximum resolution of 1280x1024 at 1000 frames/s (fps) and a minimum resolution of 1280x16 at 64 kfps. A 2-m-long viewport having a novel optical rail system was installed on a tangential port to view the tokamak interior. The system is fully controlled from the main control room and protected by a shutter from deposits. To verify that the camera electronics are safe from the high magnetic field and its rapid time variation, possible influences are considered theoretically and experimentally. In this work, we present the design and installation of the fast camera system on the KSTAR device with discussions on the field variation effect issues.

Chung, Jinil; Lee, Deok Kyo; Seo, Dongcheol [National Fusion Research Institute, Gwahangno 113, Daejeon 305-333 (Korea, Republic of); Choi, Myoung Choul [Korea Basic Science Institute, 804-1 Ochang, Cheongwon 363-883 (Korea, Republic of)

2008-10-15T23:59:59.000Z

124

Sitting, standing, and lying in frames: a frame-based approach to posture verbs  

Science Conference Proceedings (OSTI)

Posture verbs which allow for an extended locative use, such as sit, stand and lie, make reference to specific parts of the localized object, to the orientation of prominent object axes and to positional information, which are perceived ... Keywords: French, German, Korean, extended locative use, frame analysis, object schemata, posture verbs

Thomas Gamerschlag; Wiebke Petersen; Liane Ströbel

2011-09-01T23:59:59.000Z

125

A Feasibility Study to Determine Cooling Time and Burnup of ATR Fuel Using a Nondestructive Technique and Three Types of Gamma-ray Detectors  

SciTech Connect

A Feasibility Study to Determine Cooling Time and Burnup of ATR Fuel Using a Nondestructive Technique1 Rahmat Aryaeinejad, Jorge Navarro, and David W Nigg Idaho National Laboratory Abstract Effective and efficient Advanced Test Reactor (ATR) fuel management require state of the art core modeling tools. These new tools will need isotopic and burnup validation data before they are put into production. To create isotopic, burn up validation libraries and to determine the setup for permanent fuel scanner system a feasibility study was perform. The study consisted in measuring short and long cooling time fuel elements at the ATR canal. Three gamma spectroscopy detectors (HPGe, LaBr3, and HPXe) and two system configurations (above and under water) were used in the feasibility study. The first stage of the study was to investigate which detector and system configuration would be better suited for different scenarios. The second stage of the feasibility study was to create burnup and cooling time calibrations using experimental isotopic data collected and ORIGEN 2.2 burnup data. The results of the study establish that a better spectra resolution is achieve with an above the water configuration and that three detectors can be used in the permanent fuel scanner system for different situations. In addition it was conclude that a number of isotopic ratios and absolute measurements could be used to predict ATR fuel burnup and cooling times. 1This work was supported by the U.S. Depart¬ment of Energy (DOE) under Battelle Energy Alliance, LLC Contract No. DE-AC07-05ID14517.

Jorge Navarro; Rahmat Aryaeinejad,; David W. Nigg

2011-05-01T23:59:59.000Z

126

Electromagnetic Forces and Fields in a Rotating Reference Frame  

E-Print Network (OSTI)

Maxwell’s equations and the equations governing charged particle dynamics are presented for a rotating coordinate system with the global time coordinate of an observer on the rotational axis. Special care is taken in defining the relevant entities in these equations. Ambiguities in the definitions of the electromagnetic fields are pointed out, and in fact are shown to be essential in such a system of coordinates. The Lorentz force is found to have an extra term in this frame, which has its origins in relativistic mass. A related term in the energy equation, which allows inertia to be gained even during strict corotation, suggests ways existing pulsar magnetosphere models may be modified to match observed ‘braking indices ’ more closely. Subject headings: magnetic fields — relativity — pulsars: general – 3 –

Paul N. Arendt

1998-01-01T23:59:59.000Z

127

FrameNet, current collaborations and future goals  

Science Conference Proceedings (OSTI)

This paper will focus on recent and near-term future developments at FrameNet (FN) and the interoperability issues they raise. We begin by discussing the current state of the Berkeley FN database including major changes in the data format for the latest ... Keywords: Corpus, Crowdsourcing, Frame semantics, FrameNet, Lexical resource, Lexical semantics interoperability, Lexicon, Semantic role, Thematic role, WordNet

Collin F. Baker

2012-06-01T23:59:59.000Z

128

Riot or rebellion: media framing and the 1967 Detroit uprising.  

E-Print Network (OSTI)

??Frames make sense of complex issues and events, including identifying who is to blame and who or what is responsible for overcoming the problem. This… (more)

Ulbrich, Casandra E.

2011-01-01T23:59:59.000Z

129

Neighborhood, City, or Region: Deconstructing Scale in Planning Frames  

E-Print Network (OSTI)

pdf -----. 2004. Transportation 2030 Equity Analysis Report.generation: Transportation 2030 plan for the San Franciscoplanning organization’s 2030 plan (MTC 2005) frames

Lowe, Kate

2011-01-01T23:59:59.000Z

130

Brans-Dicke wormholes in the Jordan and Einstein frames  

E-Print Network (OSTI)

We examine the possibility of static wormhole solutions in the vacuum Brans-Dicke theory both in the original (Jordan) frame and in the conformally rescaled (Einstein) frame. It turns out that, in the former frame, wormholes exist only in a very narrow interval of the coupling parameter, viz., -3/2frame, wormhole solutions do not exist at all unless energy conditions are violated by hand.

K. K. Nandi; B. Bhattacharjee; S. M. K. Alam; J. Evans

2009-05-31T23:59:59.000Z

131

Brans-Dicke theory: Jordan vs Einstein Frame  

E-Print Network (OSTI)

It is well known that, in contrast to general relativity, there are two conformally related frames, the Jordan frame and the Einstein frame, in which the Brans-Dicke theory, a prototype of generic scalar-tensor theory, can be formulated. There is a long standing debate on the physical equivalence of the formulations in these two different frames. It is shown here that gravitational deflection of light to second order accuracy may observationally distinguish the two versions of the Brans-Dicke theory.

A. Bhadra; K. Sarkar; D. P. Datta; K. K. Nandi

2006-05-19T23:59:59.000Z

132

Gravity Load Collapse of Building Frames during Earthquakes  

E-Print Network (OSTI)

Gravity Load Collapse of Building Frames during Earthquakes J. P. Moehle, K. J. Elwood, H. Sezen to frames designed primarily for gravity loads. Columns generally were not designed to have strengths capacity of the column. As the axial capacity diminishes, the gravity loads carried by the column must

Sezen, Halil

133

Blast response comparison of multiple steel frame connections  

Science Conference Proceedings (OSTI)

When a structural steel frame is subjected to blast, the beam-to-column connections, which are responsible for load transfer between different members within the frame, play a major role in structural response. This paper presents results of a comparative ... Keywords: Blast loads, Connections, Displacement, Explosions, Finite element method, Stress

Girum S. Urgessa; Tomasz Arciszewski

2011-07-01T23:59:59.000Z

134

Framing the question: detecting and filling spatial-temporal windows  

Science Conference Proceedings (OSTI)

We propose a new mechanism, which we term frames, for data-dependent windows. In contrast to traditional timestamp-based windows, frames represent just the boundary of a window and can be filled with data from secondary streams or historical data. ... Keywords: data-stream management, spatial-temporal windows

James Whiteneck; Kristin Tufte; Amit Bhat; David Maier; Rafael J. Fernández-Moctezuma

2010-11-01T23:59:59.000Z

135

THE UNIVERSAL VASSILIEV-KONTSEVICH INVARIANT FOR FRAMED ORIENTED LINKS  

E-Print Network (OSTI)

Abstract. We give a generalization of the Reshetikhin-Turaev functor for tangles to get a combinatorial formula for the Kontsevich integral for framed oriented links. The uniqueness of the universal Vassiliev-Kontsevich invariant of framed oriented links is established. As a corollary one gets the rationality of Kontsevich integral.

Le Tu; Quoc Thang; Jun Murakami

1994-01-01T23:59:59.000Z

136

Visualizing Spacetime Curvature via Frame-Drag Vortexes and Tidal Tendexes II. Stationary Black Holes  

E-Print Network (OSTI)

When one splits spacetime into space plus time, the Weyl curvature tensor (which equals the Riemann tensor in vacuum) splits into two spatial, symmetric, traceless tensors: the tidal field $E$, which produces tidal forces, and the frame-drag field $B$, which produces differential frame dragging. In recent papers, we and colleagues have introduced ways to visualize these two fields: tidal tendex lines (integral curves of the three eigenvector fields of $E$) and their tendicities (eigenvalues of these eigenvector fields); and the corresponding entities for the frame-drag field: frame-drag vortex lines and their vorticities. These entities fully characterize the vacuum Riemann tensor. In this paper, we compute and depict the tendex and vortex lines, and their tendicities and vorticities, outside the horizons of stationary (Schwarzschild and Kerr) black holes; and we introduce and depict the black holes' horizon tendicity and vorticity (the normal-normal components of $E$ and $B$ on the horizon). For Schwarzschild and Kerr black holes, the horizon tendicity is proportional to the horizon's intrinsic scalar curvature, and the horizon vorticity is proportional to an extrinsic scalar curvature. We show that, for horizon-penetrating time slices, all these entities ($E$, $B$, the tendex lines and vortex lines, the lines' tendicities and vorticities, and the horizon tendicities and vorticities) are affected only weakly by changes of slicing and changes of spatial coordinates, within those slicing and coordinate choices that are commonly used for black holes. [Abstract is abbreviated.

Fan Zhang; Aaron Zimmerman; David A. Nichols; Yanbei Chen; Geoffrey Lovelace; Keith D. Matthews; Robert Owen; Kip S. Thorne

2012-08-15T23:59:59.000Z

137

Developing Low-Conductance Window Frames: Capabilities and Limitations of  

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

Developing Low-Conductance Window Frames: Capabilities and Limitations of Developing Low-Conductance Window Frames: Capabilities and Limitations of Current Window Heat Transfer Design Tools Title Developing Low-Conductance Window Frames: Capabilities and Limitations of Current Window Heat Transfer Design Tools Publication Type Journal Article LBNL Report Number LBNL-1022E Year of Publication 2008 Authors Gustavsen, Arlid, Dariush K. Arasteh, Bjørn Petter Jelle, Dragan C. Curcija, and Christian Kohler Journal Journal of Building Physics Volume 32 Pagination 131-153 Call Number LBNL-1022E Abstract While window frames typically represent 20-30% of the overall window area, their impact on the total window heat transfer rates may be much larger. This effect is even greater in low-conductance (highly insulating) windows which incorporate very low conductance glazings. Developing low-conductance window frames requires accurate simulation tools for product research and development. Based on a literature review and an evaluation of current methods of modeling heat transfer through window frames, we conclude that current procedures specified in ISO standards are not sufficiently adequate for accurately evaluating heat transfer through the low-conductance frames.

138

Customising Graphics Applications: Techniques and Programming Interface  

E-Print Network (OSTI)

This paper identifies opportunities for customising architectures for graphics applications, such as infrared simulation and geometric visualisation. We have studied methods for exploiting custom data formats and datapath widths, and for optimising graphics operations such as texture mapping and hidden-surface removal. Techniques for balancing the graphics pipeline and for runtime reconfiguration have been implemented. The customised architectures are captured in Handel-C, a Clike language supporting parallelism and flexible data size, and compiled for Xilinx 4000 and Virtex FPGAs. We have also developed an application programming interface based on the OpenGL standard for automatic speedup of graphics applications, including the Quake 2 action game. 1 Introduction Despite tremendous progress in the last thirty years, real-time generation of realistic images still offers many challenges. The demand for realism requires improvement in algorithms, frame rate and resolution, while the v...

Henry Styles And; Henry Styles; Wayne Luk

2000-01-01T23:59:59.000Z

139

The Area-Time-Integral Technique to Estimate Convective Rain Volumes over Areas Applied to Satellite Data—A Preliminary Investigation  

Science Conference Proceedings (OSTI)

Early work attempting to apply GOES rapid scan satellite data to a recently developed simple radar technique used to estimate convective rain volumes over areas in a semiarid environment (the northern Great Plains) is described.

AndréA. Doneaud; James R. Miller Jr.; L. Ronald Johnson; Thomas H. Vonder Haar; Patrick Laybe

1987-01-01T23:59:59.000Z

140

Price-Responsive Load (PRL) Program - Framing Paper No.1  

SciTech Connect

By definition, effective and efficient competitive markets need a supply side and a demand side. One criticism of electric restructuring efforts in many states is that most of the attention has been focused on the supply side, in a market focused on the short term. In general, the demand side of the market has been under-addressed. The objective of the New England Demand Response Initiative (NEDRI) is to develop a comprehensive, coordinated set of demand response programs for the New England regional power markets. NEDRI aims to maximize the capability of demand response to compete in the wholesale market and to improve the economic efficiency and environmental profile of the electric sector. To those ends, NEDRI is focusing its efforts in four interrelated areas: (1) ISO-level reliability programs, (2) Market-based price-responsive load programs, (3) Demand response at retail through pricing, rate design, and advanced metering, and (4) End-use energy efficiency resources as demand response. The fourth area, energy efficiency, is the subject of this framing paper. Energy efficiency reduces the energy used by specific end-use devices and systems, typically without affecting the level of service and without loss of amenity. Energy savings and peak load reductions are achieved by substituting technically more advanced equipment, processes, or operational strategies to produce the same or an improved level of end-use service with less electricity. In contrast, load management programs lower peak demand during specific, limited time periods by either (1) influencing the timing of energy use by shifting load to another time period, or (2) reducing the level of energy use by curtailing or interrupting the load, typically with some loss of service or amenity.

Goldman, Charles A.

2002-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "techniques time frame" 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

Real-Space x-ray tomographic reconstruction of randomly oriented objects with sparse data frames  

E-Print Network (OSTI)

Schemes for X-ray imaging single protein molecules using new x-ray sources, like x-ray free electron lasers (XFELs), require processing many frames of data that are obtained by taking temporally short snapshots of identical molecules, each with a random and unknown orientation. Due to the small size of the molecules and short exposure times, average signal levels of much less than 1 photon/pixel/frame are expected, much too low to be processed using standard methods. One approach to process the data is to use statistical methods developed in the EMC algorithm (Loh & Elser, Phys. Rev. E, 2009) which processes the data set as a whole. In this paper we apply this method to a real-space tomographic reconstruction using sparse frames of data (below $10^{-2}$ photons/pixel/frame) obtained by performing x-ray transmission measurements of a low-contrast, randomly-oriented object. This extends the work by Philipp et al. (Optics Express, 2012) to three dimensions and is one step closer to the single molecule recons...

Ayyer, Kartik; Tate, Mark W; Elser, Veit; Gruner, Sol M

2013-01-01T23:59:59.000Z

142

Modeling Laser Wakefield Accelerators in a Lorentz Boosted Frame  

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

Modeling Laser Modeling Laser Wakefield Accelerators in a Lorentz Boosted Frame Modeling Laser Wakefield Accelerators in a Lorentz Boosted Frame VayBoost.gif An image showing the "boosted frame," in which the observer moves at near light speed. The laser pulse is represented in blue and red; the wakefields are colored pale blue and yellow. In this frame, the plasma (yellow box) has contracted and the wavefronts are fewer and farther apart, resulting in far fewer calculations and faster results. Why it Matters: Laser driven plasma waves can produce accelerating gradients orders of magnitude greater than standard accelerating structures. High quality electron beams of energy up to 1 GeV have been produced in just a few centimeters and 10-GeV stages being planned as

143

Framing bioremediation decision making as negotiation: Rationale & guidelineFraming bioremediation decision making as negotiation: Rationale & guidelines  

SciTech Connect

Framing remediation decision making as negotiation: (1) social choice, not technology choice; (2) prompts decision makers to identify interested and affected parties, anticipate objections, effectively address and ameliorate objections, and avoid unacceptable decisions.

Bjornstad, David J.; Wolfe, Amy K.

2004-03-17T23:59:59.000Z

144

Ultra-high speed burst-mode imager for multi-frame radiography  

SciTech Connect

A 720 x 720 pixel hybrid-CMOS imager was fabricated by Rockwell Scientific (now Teledyne Imaging Sensors). Several cameras have been in operation for 5 years, in a variety of static and dynamic experiments, at the 800MeV proton radiography (pRAD) facility at the LANSCE accelerator. The cameras can operate with a per-pulse adjustable inter-frame time of 250ns to 2s, and with an exposure/integration-time as short as 150 ns. Given the 800 ms total readout time, the imager can be externally synchronized to 0.1-to-5Hz, 50-ns wide proton beam pulses, and record 1000-frame radiographic movies of 5-to-30 minute duration. The effectiveness and dependence of the global electronic shutter on the pixelated Si photo-sensor bias voltage is discussed. The spatial resolution dependence of the full imaging system on various monolithic and structured scintillators is presented. We also present features of a new-generation 10-frame, 1024 x 1024 pixel, 50-ns exposure, 12-bit dynamic range imager, which is now in the design phase.

Kwiatkowski, Kris [Los Alamos National Laboratory; Nedrow, Paul [Los Alamos National Laboratory; Mariam, Fesseha [Los Alamos National Laboratory; Merrill, Frank E [Los Alamos National Laboratory; Morris, Chris L [Los Alamos National Laboratory; Saunders, Abdy [Los Alamos National Laboratory; Hogan, Gary [Los Alamos National Laboratory; Douance, Vincent [TELEDYNE IMAGING SENSORS; Bal, Yibin [TELEDYNE IMAGING SENSORS; Joshi, Atul [TELEDYNE IMAGING SENSORS; Auyeung, John [TELEDYNE IMAGING SENSORS

2010-01-01T23:59:59.000Z

145

Subhourly wind forecasting techniques for wind turbine operations  

DOE Green Energy (OSTI)

Three models for making automated forecasts of subhourly wind and wind power fluctuations were examined to determine the models' appropriateness, accuracy, and reliability in wind forecasting for wind turbine operation. Such automated forecasts appear to have value not only in wind turbine control and operating strategies, but also in improving individual wind turbine control and operating strategies, but also in improving individual wind turbine operating strategies (such as determining when to attempt startup). A simple persistence model, an autoregressive model, and a generalized equivalent Markhov (GEM) model were developed and tested using spring season data from the WKY television tower located near Oklahoma City, Oklahoma. The three models represent a pure measurement approach, a pure statistical method and a statistical-dynamical model, respectively. Forecasting models of wind speed means and measures of deviations about the mean were developed and tested for all three forecasting techniques for the 45-meter level and for the 10-, 30- and 60-minute time intervals. The results of this exploratory study indicate that a persistence-based approach, using onsite measurements, will probably be superior in the 10-minute time frame. The GEM model appears to have the most potential in 30-minute and longer time frames, particularly when forecasting wind speed fluctuations. However, several improvements to the GEM model are suggested. In comparison to the other models, the autoregressive model performed poorly at all time frames; but, it is recommended that this model be upgraded to an autoregressive moving average (ARMA or ARIMA) model. The primary constraint in adapting the forecasting models to the production of wind turbine cluster power output forecasts is the lack of either actual data, or suitable models, for simulating wind turbine cluster performance.

Wegley, H.L.; Kosorok, M.R.; Formica, W.J.

1984-08-01T23:59:59.000Z

146

Technique for identifying, tracing, or tracking objects in image data  

SciTech Connect

A technique for computer vision uses a polygon contour to trace an object. The technique includes rendering a polygon contour superimposed over a first frame of image data. The polygon contour is iteratively refined to more accurately trace the object within the first frame after each iteration. The refinement includes computing image energies along lengths of contour lines of the polygon contour and adjusting positions of the contour lines based at least in part on the image energies.

Anderson, Robert J. (Albuquerque, NM); Rothganger, Fredrick (Albuquerque, NM)

2012-08-28T23:59:59.000Z

147

Cosmological dynamics of $f(R)$ gravity scalar degree of freedom in Einstein frame  

E-Print Network (OSTI)

$f(R)$ gravity models belong to an important class of modified gravity models where the late time cosmic accelerated expansion is considered as the manifestation of the large scale modification of the force of gravity. $f(R)$ gravity models can be expressed in terms of a scalar degree of freedom by redefinition of models variable. The conformal transformation of the action from Jordan frame to Einstein frame makes the scalar degree of freedom more explicit and can be studied conveniently. We have investigated the features of the scalar degree of freedoms and the consequent cosmological implications of the power-law ($\\xi R^n$) and the Starobinsky (disappearing cosmological constant) $f(R)$ gravity models numerically in the Einstein frame. Both the models show interesting behaviour of their scalar degree of freedom and could produce the accelerated expansion of the Universe in the Einstein frame with the negative equation of state of the scalar field. However the scalar field potential for the power-law model is the well behaved function of the field, whereas the potential becomes flat for higher value of field in the case of the Starobinsky model. Moreover, the equation of state of the scalar field for the power-law model is always negative and less than -1/3, which corresponds to the behaviour of the dark energy that produces the accelerated expansion of the Universe. This is not always the case for the Starobinsky model. At late times Starobinsky model behaves as cosmological constant $\\Lambda$ as behaves by power-law model for the values of $n\\rightarrow 2$ at all times.

Umananda Dev Goswami; Kabita Deka

2013-03-23T23:59:59.000Z

148

Making Steel Framing as Thermally Efficient as Wood  

E-Print Network (OSTI)

In many world regions like North America and Scandinavia wood framing is dominant technology for residential buildings. During last two decades several companies around the world started to promote a low-gage steel framing for residential and commercial buildings. Steel framing has many advantages over wood framing; strength, low weight, dimensional stability, resistance to termite damage, almost 100% recycleability, etc .. However because of several reasons an application of steel as a framing material in US residential building market is relatively low. Steel industry has noticed much more success on commercial building market which is not as rigorous regarding thermal efficiency and energy conservation. Steel framing has one significant disadvantage over wood; Steel members conduct heat extremely well. This effect is known as thermal bridging, and it can sharply reduce a wall's effective Rvalue. The simplest and most common way to overcome this problem is to block the path of heat flow with rigid foam insulation. Adding rigid foam insulation not only increases the whole wall's R-value, but it also reduces the temperature difference between the center of the cavity and the stud area, which cuts down on the possibility of black stains forming from dirt getting asymmetrically attracted to cold spots on a wall's surface. However, rigid foam insulation is an expensive solution. Several material configurations were developed in the past to increase thermal effectiveness of steel-framed structures. This paper is focused on most common options of thermal improvements of steels framed walls. They were as follow: 1) diminishing the contact area between the studs and exterior sheathing materials, 2) reducing the steel stud web area, 3) replacing the steel web with a less conductive material, and 4) placing foam insulation in locations where the thermal shorts are most critical. Researchers at Oak Ridge National Laboratory (ORNL) have utilized both hot box testing and computer simulations in aim to optimize thermal design of steel stud walls.. While examining several material options, ORNL's BTC was also striving to develop energy-efficient steel stud wall technologies that would enable steel-stud walls to beat the performance of traditional 2 x 6 wood stud walls. Several, most current, ORNL developments in steel framing are presented below.

Kosny, J.; Childs, P.

2002-01-01T23:59:59.000Z

149

The influence of media frames on the public's perception of biofuels.  

E-Print Network (OSTI)

??This study analyzes the frames Iowa newspapers used to report on the biofuels issue, and examines the extent to which these media frames are present… (more)

Chang, Shin-heng

2009-01-01T23:59:59.000Z

150

Experimental and Numerical Examination of the Thermal Transmittance of High Performance Window Frames  

E-Print Network (OSTI)

Developing Low -conductance Window Frames: Capabilities andLimitations o f Current Window Heat Transfer Design Tools -Simulations of I nternal Window Frame Caviti es Validated

Gustavsen Ph.D., Arild

2010-01-01T23:59:59.000Z

151

Non-minimal Higgs inflation and frame dependence in cosmology  

Science Conference Proceedings (OSTI)

We investigate a very general class of cosmological models with scalar fields non-minimally coupled to gravity. A particular representative in this class is given by the non-minimal Higgs inflation model in which the Standard Model Higgs boson and the inflaton are described by one and the same scalar particle. While the predictions of the non-minimal Higgs inflation scenario come numerically remarkably close to the recently discovered mass of the Higgs boson, there remains a conceptual problem in this model that is associated with the choice of the cosmological frame. While the classical theory is independent of this choice, we find by an explicit calculation that already the first quantum corrections induce a frame dependence. We give a geometrical explanation of this frame dependence by embedding it into a more general field theoretical context. From this analysis, some conceptional points in the long lasting cosmological debate: 'Jordan frame vs. Einstein frame' become more transparent and in principle can be resolved in a natural way.

Steinwachs, Christian F. [School of Mathematical Sciences, University of Nottingham University Park, Nottingham, NG7 2RD (United Kingdom); Kamenshchik, Alexander Yu. [Dipartimento di Fisica e Astronomia and INFN, Via Irnerio 46, 40126 Bologna, Italy and L.D. Landau Institute for Theoretical Physics of the Russian Academy of Sciences, Kosygin str. 2, 119334 Moscow (Russian Federation)

2013-02-21T23:59:59.000Z

152

Direct Measurement of Initial Enrichment, Burn-up and Cooling Time of Spent Fuel Assembly with a Differential Die-Away Technique Based Instrument  

SciTech Connect

An outline of this presentation of what a Differential Die-Away (DDA) instrument can do are: (1) Principle of operation of DDA instrument; (2) Determination of initial enrichment (IE) ({sigma} < 5%); (3) Determination of burn up (BU) ({sigma} {approx} 6%); (4) Determination of cooling time (CT) ({sigma} {approx} 20-50%); and (5) DDA instrument as a standalone device. DDA response (fresh fuel vs. spent fuel) is: (1) Fresh fuel => DDA response increases (die-away time is longer) with increasing fissile content; and (2) Spent fuel => DDA response decreases (die-away time is shorter) with higher burn-up (i.e. more neutron absorbers present).

Henzl, Vladimir [Los Alamos National Laboratory; Swinhoe, Martyn T. [Los Alamos National Laboratory; Tobin, Stephen J. [Los Alamos National Laboratory

2012-07-13T23:59:59.000Z

153

On the Existence and Utility of Rigid Quasilocal Frames  

E-Print Network (OSTI)

The notion of a rigid quasilocal frame (RQF) provides a geometrically natural way to define a system in general relativity, and a new way to analyze the problem of motion. An RQF is defined as a two-parameter family of timelike worldlines comprising the boundary (topologically R x S^2) of the history of a finite spatial volume, with the rigidity conditions that the congruence of worldlines be expansion- and shear-free. In other words, the size and shape of the system do not change. In previous work, such systems in Minkowski space were shown to admit precisely the same six degrees of freedom of rigid body motion that we are familiar with in Newtonian space-time, without any constraints, circumventing a century-old theorem due to Herglotz and Noether. This is a consequence of the fact that a two-sphere of any shape always admits precisely six conformal Killing vector fields, which generate an action of the Lorentz group on the sphere. Here we review the previous work in flat spacetime and extend it in three directions: (1) Using a Fermi normal coordinates approach, we explicitly construct, to the first few orders in powers of areal radius, the general solution to the RQF rigidity equations in a generic curved spacetime, and show that the resulting RQFs possess exactly the same six motional degrees of freedom as in flat spacetime; (2) We discuss how RQFs provide a natural context in which to understand the flow of energy, momentum and angular momentum into and out of a system; in particular, we derive a simple, exact expression for the flux of gravitational energy (a gravitational analogue of the Poynting vector) in terms of operationally-defined geometrical quantities on the boundary; (3) We use this new gravitational (or "geometrical") energy flux to resolve another apparent paradox, this one involving electromagnetism in flat spacetime, which we discovered in the course of this work.

Richard J. Epp; Robert B. Mann; Paul L. McGrath

2013-07-07T23:59:59.000Z

154

Near-Real-Time Measurement of Sea-Salt Aerosol during the SEAS Campaign: Comparison of Emission-Based Sodium Detection with an Aerosol Volatility Technique  

Science Conference Proceedings (OSTI)

The first deployment of an emission-based aerosol sodium detector (ASD), designed to chemically characterize marine aerosols on a near-real-time basis, is reported. Deployment occurred as part of the Shoreline Environment Aerosol Study (SEAS) ...

P. Campuzano-Jost; C. D. Clark; H. Maring; D. S. Covert; S. Howell; V. Kapustin; K. A. Clarke; E. S. Saltzman; A. J. Hynes

2003-10-01T23:59:59.000Z

155

Two-Dimensional Computational Fluid Dynamics and Conduction Simulations of Heat Transfer in Horizontal Window Frames with Internal Cavities  

E-Print Network (OSTI)

2001. Heat transfer in window frames with internal cavities.Simulations of Internal Window Frame Cavities Validatedin Three-Dimensional Window Frames with Internal Cavities. ”

Gustavsen, Arlid

2008-01-01T23:59:59.000Z

156

NNSA, LANL Complete DARHT Improvements With Successful Multi-frame  

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

LANL Complete DARHT Improvements With Successful Multi-frame LANL Complete DARHT Improvements With Successful Multi-frame Hydrodynamic Test | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > Media Room > Press Releases > NNSA, LANL Complete DARHT Improvements With Successful ... Press Release NNSA, LANL Complete DARHT Improvements With Successful Multi-frame

157

Design options for low-conductivity window frames  

Science Conference Proceedings (OSTI)

The window industry's commercialization of low-emissivity coatings and low-conductivity gas-filling over the past few years has helped to drastically reduce heat transfer rates through the glazed areas of windows. However, few changes have taken place in the design and construction of window frames and edges, leaving these elements to account for most of the heat transfer through today's state-of-the-art windows. This paper presents design and material requirements for the manufacture of low-conductivity window frames obtained through the use of finite element computer modeling. Such frames will compliment and not degrade today's most energy-efficient insulated glass units. 7 refs., 2 figs., 5 tabs.

Byars, N.; Arasteh, D.

1990-10-01T23:59:59.000Z

158

Department of Energy Quadrennial Technology Review Framing Document  

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

Quadrennial Technology Review Quadrennial Technology Review Framing Document http://energy.gov/QTR 3/14/2011 U.S. Department of ENERGY 2 The United States Department of Energy (DOE) has initiated a review of its energy technology activities (Quadrennial Technology Review, or QTR). This framing document is a principal means of facilitating stakeholder engagement in that process. It describes the nation's energy landscape and challenges, identifies important research, development, and demonstration (RD&D) policy choices to be made, and summarizes the current status of selected energy technologies and DOE technology program goals. It is intended to serve as the common framework for stakeholder engagement through advisory

159

FRAMES Software System: Linking to the Statistical Package R  

SciTech Connect

This document provides requirements, design, data-file specifications, test plan, and Quality Assurance/Quality Control protocol for the linkage between the statistical package R and the Framework for Risk Analysis in Multimedia Environmental Systems (FRAMES) Versions 1.x and 2.0. The requirements identify the attributes of the system. The design describes how the system will be structured to meet those requirements. The specification presents the specific modifications to FRAMES to meet the requirements and design. The test plan confirms that the basic functionality listed in the requirements (black box testing) actually functions as designed, and QA/QC confirms that the software meets the client’s needs.

Castleton, Karl J.; Whelan, Gene; Hoopes, Bonnie L.

2006-12-11T23:59:59.000Z

160

General Analysis of Inflation in the Jordan frame Supergravity  

E-Print Network (OSTI)

We study various inflation models in the Jordan frame supergravity with a logarithmic Kahler potential. We find that, in a class of inflation models containing an additional singlet in the superpotential, three types of inflation can be realized: the Higgs-type inflation, power-law inflation, and chaotic inflation with/without a running kinetic term. The former two are possible if the holomorphic function dominates over the non-holomorphic one in the frame function, while the chaotic inflation occurs when both are comparable. Interestingly, the fractional-power potential can be realized by the running kinetic term. We also discuss the implication for the Higgs inflation in supergravity.

Kazunori Nakayama; Fuminobu Takahashi

2010-09-17T23:59:59.000Z

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


161

Role of External Flow and Frame Invariance in Stochastic Thermodynamics  

E-Print Network (OSTI)

For configurational changes of soft matter systems affected or caused by external hydrodynamic flow, we identify applied work, exchanged heat, and entropy change on the level of a single trajectory. These expressions guarantee invariance of stochastic thermodynamics under a change of frame of reference. As criterion for equilibrium \\textit{vs.} nonequilibrium, zero \\textit{vs.} nonzero applied work replaces detailed balance \\textit{vs.} nonvanishing currents, since both latter criteria are shown to depend on the frame of reference. Our results are illustrated quantitatively by calculating the large deviation function for the entropy production of a dumbbell in shear flow.

Thomas Speck; Jakob Mehl; Udo Seifert

2007-12-03T23:59:59.000Z

162

Electromagnetic pump stator frame having power crossover struts  

DOE Patents (OSTI)

A stator frame for an electromagnetic pump includes a casing joined to a hub by a plurality of circumferentially spaced apart struts. At least one electrically insulated power crossover lead extends through the hub, through a crossover one of the struts, and through the casing for carrying electrical current therethrough.

Fanning, Alan W. (San Jose, CA); Olich, Eugene E. (Aptos, CA)

1995-01-01T23:59:59.000Z

163

Plastic limit analysis of frames using ant colony systems  

Science Conference Proceedings (OSTI)

In recent years, heuristic algorithms such as simulated annealing, genetic and ant colony algorithms have found many applications in optimization problems. In this paper, ant colony systems (ACSs) are used to optimize the process of finding the collapse ... Keywords: Ant colony systems, Collapse load factor, Planar frames, Plastic limit analysis

A. Kaveh; M. Jahanshahi

2008-06-01T23:59:59.000Z

164

STATE OF CALIFORNIA QUALITY INSULATION INSTALLATION FRAMING STAGE CHECKLIST  

E-Print Network (OSTI)

be accepted by the building department or HERS rater. SPF insulation can be considered an air barrier when be insulated. These areas shall be called out on the building plans with diagrams and/or specific designSTATE OF CALIFORNIA QUALITY INSULATION INSTALLATION ­ FRAMING STAGE CHECKLIST CEC-CF-4R-ENV-21

165

Jordan frame supergravity and inflation in the NMSSM  

SciTech Connect

We present a complete explicit N=1, d=4 supergravity action in an arbitrary Jordan frame with nonminimal scalar-curvature coupling of the form {Phi}(z,z)R. The action is derived by suitably gauge fixing the superconformal action. The theory has a modified Kaehler geometry, and it exhibits a significant dependence on the frame function {Phi}(z,z) and its derivatives over scalars, in the bosonic as well as in the fermionic part of the action. Under certain simple conditions, the scalar kinetic terms in the Jordan frame have a canonical form. We consider an embedding of the next-to-minimal supersymmetric standard model (NMSSM) gauge theory into supergravity, clarifying the Higgs inflation model recently proposed by Einhorn and Jones. We find that the conditions for canonical kinetic terms are satisfied for the NMSSM scalars in the Jordan frame, which leads to a simple action. However, we find that the gauge singlet field experiences a strong tachyonic instability during inflation in this model. Thus, a modification of the model is required to support the Higgs-type inflation.

Ferrara, Sergio [Physics Department, Theory Unit, CERN, CH 1211, Geneva 23 (Switzerland); INFN - Laboratori Nazionali di Frascati, Via Enrico Fermi 40, 00044 Frascati (Italy); Kallosh, Renata; Linde, Andrei [Department of Physics, Stanford University, Stanford, California 94305 (United States); Marrani, Alessio; Van Proeyen, Antoine [Instituut voor Theoretische Fysica, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3001 Leuven (Belgium)

2010-08-15T23:59:59.000Z

166

A frame knowledge system for managing financial decision knowledge  

Science Conference Proceedings (OSTI)

Managing decision knowledge or expertise from domain experts is one of the most exciting challenges in today's knowledge management field. The nature of decision knowledge in determining a firm's financial health is context-dependent, intangible, and ... Keywords: Financial decision management, Frame knowledge representation, Jess, Knowledge acquisition, Knowledge-based system

Weissor Shiue; Sheng-Tun Li; Kuan-Ju Chen

2008-10-01T23:59:59.000Z

167

Syntactic and Semantic Role Labeling for Chinese FrameNet Based on Cascaded Conditional Random Fields  

Science Conference Proceedings (OSTI)

The Chinese FrameNet Project is creating a lexical resource for Chinese, based on the principles of Frame Semantics and supported by corpus evidence. Due to the fact that syntactic and semantic role labeling (SSRL) is very necessary for deep natural ... Keywords: Frame Semantics, Chinese FrameNet, syntactic and semantic role labeling, cascaded conditional random fields

Hao Xiaoyan; Chang Xiaoming; Liu Kaiying

2009-08-01T23:59:59.000Z

168

Deep Frames, White Men's Discourse, and Black Female Bodies  

E-Print Network (OSTI)

In this qualitative study, I examine the persistent trend of black women as an excluded relationship partner for white men. Integral to understanding the exclusion of black women as relationship partners is the construction of black female bodies, by influential white men historically and contemporarily, as the abject opposite of hegemonic femininity, which holds "middle-class, heterosexual, [w]hite femininity" as the norm (Collins 2005:193). This construction essentially places black women outside the bounds of hegemonic femininity, beauty, sexuality, and womanhood. Using the theoretical concept deep frame, which is the "conceptual infrastructure of the mind" (Lakoff 2006a:12) and representative of one's commonsense world view, I argue that the ways in which influential white men have constructed black female bodies is a critical component of the raced, gendered, and classed deep frame of white men. This deep frame undergirds how many white men perceive, interpret, understand, emote, and engage in actions where black women are concerned. Hence in this study, I qualitatively examine, through analyzing and interpreting the in-depth online questionnaires of 134 white male respondents, how the deep frame of white men affects how they perceive black women and ultimately the relationships they seek with black women. The results of the study show that many white male respondents, despite most having very limited or no personal interactions with black women, viewed black women through the one-dimensional lens of the raced, gendered, and classed deep frame. Many respondents perceived black women as unattractive unless capable of a white normative standard, as possessing a negative "black" culture, and as possessing negative and "unfeminine" attributes that make them complicit in their own rejection. These findings show how the deep frame disciplines white men to view black women as "out of bounds" as legitimate relationship partners, and disciplines the types of relationships they seek with black women. The results of this study also reveal that the conceptual approach of deep frame rooted in an understanding of the power of influential white men to control and construct society provides a theoretical alternative to the outmoded interracial marriage theories of caste and exchange.

Slatton, Brittany C.

2009-08-01T23:59:59.000Z

169

Towards hard x-ray imaging at GHz frame rate  

SciTech Connect

Gigahertz (GHz) imaging using hard x-rays ( Greater-Than-Or-Equivalent-To 10 keV) can be useful to high-temperature plasma experiments, as well as research and applications using coherent photons from synchrotron radiation and x-ray free electron lasers. GHz framing rate can be achieved by using multiple cameras through multiplexing. The advantages and trade-offs of single-photon detection mode, when no more than one x-ray photon is detected per pixel, are given. Two possible paths towards x-ray imaging at GHz frame rates using a single camera are: (a) avalanche photodiode arrays of high-Z materials and (b) microchannel plate photomultipliers in conjunction with materials with large indices of refraction.

Wang Zhehui; Morris, C. L.; Kapustinsky, J. S.; Kwiatkowski, K.; Luo, S.-N. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2012-10-15T23:59:59.000Z

170

Towards hard X-ray imaging at GHz frame rate  

Science Conference Proceedings (OSTI)

Gigahertz (GHz) imaging using hard X-rays ({approx}> 10 keV) can be useful to high-temperature plasma experiments, as well as research using coherent photons from synchrotron radiation and X-ray free electron lasers. GHz framing rate can be achieved by using multiple cameras through multiplexing. The advantages and trade-offs of single-photon detection mode, when no more than one X-ray photon is detected per pixel, are given. Two possible paths towards X-ray imaging at GHz frame rates using a single camera are (a) Avalanche photodiode arrays of high-Z materials and (b) Microchannel plate photomultipliers in conjunction with materials with large indices of refraction.

Wang, Zhehui [Los Alamos National Laboratory; Morris, Christopher [Los Alamos National Laboratory; Luo, Shengnian [Los Alamos National Laboratory; Kwiatkowski, Kris K. [Los Alamos National Laboratory; Kapustinsky, Jon S. [Los Alamos National Laboratory

2012-05-02T23:59:59.000Z

171

Seismic Rehabilitation of RC Frames by Using Steel Panels  

Science Conference Proceedings (OSTI)

Every major earthquake in Turkey causes a large number of building suffer moderate damage due to poor construction. If a proper and fast retrofit is not applied, the aftershocks, which may sometimes come days or weeks after the main shock, can push a moderately damaged building into a major damage or even total collapse. This paper presents a practical retrofit method for moderately damaged buildings, which increases the seismic performance of the structural system by reducing the displacement demand. Fabricated steel panels are used for the retrofit. They are light-weight, easy to handle, and can be constructed very quickly. Moreover, they are cheap, and do not need formwork or skilled workers. They can be designed to compensate for the stiffness and strength degradation, and to fit easily inside a moderately damaged reinforced concrete frame.To test the concept, a half-scale, single-story 3D reinforced concrete frame specimen was constructed at the shake-table laboratories of the Kandilli Observatory and Earthquake Research Institute of Bogazici University, and subjected to recorded real earthquake base accelerations. The amplitudes of base accelerations were increased until a moderate damage level is reached. Then, the damaged RC frames was retrofitted by means of steel panels and tested under the same earthquake. The seismic performance of the specimen before and after the retrofit was evaluated using FEMA356 standards, and the results were compared in terms of stiffness, strength, and deformability. The results have confirmed effectiveness of the proposed retrofit scheme.

Mowrtage, Waiel [Kandilli Observatory and Earthquake Research Institute of Bogazici University, Earthquake Engineering Department, Istanbul (Turkey)

2008-07-08T23:59:59.000Z

172

Using FRAMES to Manage Environmental and Water Resources  

Science Conference Proceedings (OSTI)

The Framework for Risk Analysis in Multimedia Environmental Systems FRAMES) is decision-support middleware that provides users the ability to design software solutions for complex problems. It is a software platform that provides seamless and transparent communication between modeling components by using a multi-thematic approach to provide a flexible and holistic understanding of how environmental factors potentially affect humans and the environment. It incorporates disparate components (e.g., models, databases, and other frameworks) that integrate across scientific disciplines, allowing for tailored solutions to specific activities. This paper discusses one example application of FRAMES, where several commercialoff-the-shelf (COTS) software products are seamlessly linked into a planning and decision-support tool that helps manage water-based emergency situations and sustainable response. Multiple COTS models, including three surface water models, and a number of databases are linked through FRAMES to assess the impact of three asymmetric and simultaneous events, two of which impact water resources. The asymmetric events include 1) an unconventional radioactive release into a large potable water body, 2) a conventional contaminant (oil) release into navigable waters, and 3) an instantaneous atmospheric radioactive release.

Whelan, Gene; Millard, W. David; Gelston, Gariann M.; Khangaonkar, Tarang P.; Pelton, Mitch A.; Strenge, Dennis L.; Yang, Zhaoqing; Lee, Cheegwan; Sivaraman, Chitra; Stephan, Alex J.; Hoopes, Bonnie L.; Castleton, Karl J.

2007-05-16T23:59:59.000Z

173

Ultrafast chirped optical waveform recorder using referenced heterodyning and a time microscope  

DOE Patents (OSTI)

A new technique for capturing both the amplitude and phase of an optical waveform is presented. This technique can capture signals with many THz of bandwidths in a single shot (e.g., temporal resolution of about 44 fs), or be operated repetitively at a high rate. That is, each temporal window (or frame) is captured single shot, in real time, but the process may be run repeatedly or single-shot. This invention expands upon previous work in temporal imaging by adding heterodyning, which can be self-referenced for improved precision and stability, to convert frequency chirp (the second derivative of phase with respect to time) into a time varying intensity modulation. By also including a variety of possible demultiplexing techniques, this process is scalable to recoding continuous signals.

Bennett, Corey Vincent (Livermore, CA)

2011-11-22T23:59:59.000Z

174

A Vlbi Survey of Weak Extragalactic Radio Sources for the Alignment of the Icrf and the Future Gaia Frame  

E-Print Network (OSTI)

The space astrometry mission GAIA will construct a dense optical QSO-based celestial reference frame. For consistency between the optical and radio positions, it will be important to align the GAIA frame and the International Celestial Reference Frame (ICRF) with the highest accuracy. Currently, it is found that only 10% of the ICRF sources are suitable to establish this link, either because they are not bright enough at optical wavelengths or because they have significant extended radio emission which precludes reaching the highest astrometric accuracy. In order to improve the situation, we have initiated a VLBI survey dedicated to finding additional high-quality radio sources for aligning the two frames. The sample consists of about 450 sources, typically 20 times weaker than the current ICRF sources, which have been selected by cross-correlating optical and radio catalogues. The paper presents the observing strategy and includes preliminary results of observation of 224 of these sources with the European VLBI Network in June 2007.

G. Bourda; P. Charlot; R. Porcas; S. Garrington

2008-03-10T23:59:59.000Z

175

VLBI observations of weak extragalactic radio sources for the alignment of the future GAIA frame with the ICRF  

E-Print Network (OSTI)

The space astrometry mission GAIA will construct a dense optical QSO-based celestial reference frame. For consistency between the optical and radio positions, it will be important to align the GAIA frame and the International Celestial Reference Frame (ICRF) with the highest accuracy. Currently, it is found that only 10% of the ICRF sources are suitable to establish this link, either because they are not bright enough at optical wavelengths or because they have significant extended radio emission which precludes reaching the highest astrometric accuracy. In order to improve the situation, we have initiated a VLBI survey dedicated to finding additional high-quality radio sources for aligning the two frames. The sample consists of about 450 sources, typically 20 times weaker than the current ICRF sources, which have been selected by cross-correlating optical and radio catalogues. This paper presents the observing strategy and includes preliminary results of observation of 224 of these sources with the European VLBI Network in June 2007.

Geraldine Bourda; Patrick Charlot; Richard Porcas; Simon Garrington

2007-11-21T23:59:59.000Z

176

Video frame store; An advanced solid state recorder  

SciTech Connect

In many security applications, such as in nuclear facilities, solid state recorders (SSR) have been used to instantly record and play back video images of a scene when an alarm occurs in that scene. Unlike video cassette recorders (VCR) which take a second or two to start, SSRs can respond to a command from a host computer in less than 1/30th of a second. Therefore they can be a very useful tool for video alarm assessment. There are, however, four major drawbacks with current commercial SSRs. One is high cost: a typical commercial SSR unit that can store up to 128 frames of video image costs about $70,000. Another drawback is the inability to record asynchronous video. A third problem is inflexibility of system configuration; e.g., increasing memory for image storage in an SSR can only be done by purchasing an additional unit or replacing it with another one with more memory. The final drawback is the inability to handshake with a host computer to guarantee the integrity of its response to the host's commands. The Video Frame Store (CFS) is an advanced solid state recorder that provides an effective resolution to the above problems. A VFS unit that stores 128 video frames costs less than half of a typical SSR. In addition to many basic features of a typical SSR, the VFS also provides a number of advanced features. The hardware and software implementation as well as the advanced features are discussed in detail in this paper.

Thai, T.Q.; Walker, J.E. (Sandia National Labs., Albuquerque, NM (United States))

1991-01-01T23:59:59.000Z

177

Conservation laws and tachyon potentials in the sliver frame  

E-Print Network (OSTI)

Conservation laws have provided an elegant and efficient tool to evaluate the open string field theory interaction vertex, they have been originally implemented in the case where the string field is expanded in the Virasoro basis. In this work we derive conservation laws in the case where the string field is expanded in the so-called sliver $\\mathcal{L}_0$-basis. As an application of these conservation laws derived in the sliver frame, we compute the open string field action relevant to the tachyon condensation and in order to present not only an illustration but also an additional information, we evaluate the action without imposing a gauge choice.

E. Aldo Arroyo

2011-03-24T23:59:59.000Z

178

Simulating relativistic beam and plasma systems using an optimal boosted frame  

E-Print Network (OSTI)

beam; (b) the average energy history of the electron beams.frame. The average beam energy history reveals agreement at

Vay, J.-L.

2009-01-01T23:59:59.000Z

179

A magnetostratigraphic time frame for Plio-Pleistocene transgressions in the South Caspian Basin, Azerbaijan  

E-Print Network (OSTI)

, Azerbaijan C.G.C. Van Baak a, , I. Vasiliev a , M. Stoica b , K.F. Kuiper c , A.M. Forte d , E. Aliyeva e , W of Azerbaijan (GIA), H. Javid Av. 29A, AZ1143, Baku, Azerbaijan a b s t r a c ta r t i c l e i n f o Article Caspian Basin in Azerbaijan. We sample two long sections, the Lokbatan section in the Palaeo-Volga delta

Utrecht, Universiteit

180

Cooling air recycling for gas turbine transition duct end frame and related method  

SciTech Connect

A method of cooling a transition duct end frame in a gas turbine includes the steps of a) directing cooling air into the end frame from a region external of the transition duct and the impingement cooling sleeve; and b) redirecting the cooling air from the end frame into the annulus between the transition duct and the impingement cooling sleeve.

Cromer, Robert Harold (Johnstown, NY); Bechtel, William Theodore (Scotia, NY); Sutcu, Maz (Niskayuna, NY)

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "techniques time frame" 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

Low Complexity Spatio-Temporal Key Frame Encoding for Wyner-Ziv Video Coding  

Science Conference Proceedings (OSTI)

In most Wyner-Ziv video coding approaches, the temporal correlation of key frames is not exploited since they are simply intra encoded and decoded. In this paper, using the previously decoded key frame as the side information for the key frame to be ... Keywords: Wyner-Ziv coding, Distributed video coding

Ghazaleh Esmaili; Pamela Cosman

2009-03-01T23:59:59.000Z

182

Numerical analysis of sheathing boards influence on racking resistance of timber-frame walls  

Science Conference Proceedings (OSTI)

This paper provides a numerical analysis of sheathing boards influence on racking resistance of timber-frame walls coated with single sheathing boards fastened to a timber frame. Worldwide, the walls are usually broadly used as main bearing capacity ... Keywords: Fibre-plaster boards, Numerical analysis, OSB, Racking resistance, Timber structures, Timber-framed walls

M. Premrov; P. Dobrila

2012-03-01T23:59:59.000Z

183

Using Structured Interviewing Techniques  

E-Print Network (OSTI)

GAO assists congressional decisionmakers in their deliberative process by furnishing analytical information on issues and options under consideration. Many diverse methodologies are needed to develop sound and timely answers to the questions that are posed by the Congress. To provide GAO evaluators with basic information about the more commonly used methodologies, GAO’s policy guidance includes documents such as methodology transfer papers and technical guidelines, This methodology transfer paper on using structured interviewing techniques discusses how GAO evaluators should incorporate structured interview techniques when appropriate to performing our work. It explains when these techniques should be

Gao/pemd-. Preface; Werner Grosshans

1991-01-01T23:59:59.000Z

184

Enhanced Shape-Invariant Pitch And Time-Scale Modification For Concatenative Speech Synthesis  

E-Print Network (OSTI)

To preserve shape-invariance when pitch or time-scale modifying sinusoidally modelled voiced speech, the phases of the sinusoids used to model the glottal excitation are made to add coherently at estimated excitation points. Previous methods achieve this by estimating excitation phases at synthesis frame boundaries, disregarding the frequency modulation that may occur between the frame boundary and the nearest modified excitation point. This approximation can produce a significant mis-alignment of the excitation phases, leading to distortion of the temporal structure of the synthetic speech. In this paper, a shape-invariant technique is proposed which aligns the excitation phases at excitation points, whilst allowing for variations in the frequency of the sinusoidal components.

M. P. Pollard; B. M. G. Cheetham; C. C. Goodyear; M. D. Edgington; A. Lowry

1997-01-01T23:59:59.000Z

185

ENERGY BUDGETS AND MASONRY HOUSES: A PRELIMINARY ANALYSIS OF THE COMPARATIVE ENERGY PERFORMANCE OF MASONRY AND WOOD-FRAME HOUSES  

E-Print Network (OSTI)

ENERGY PERFORMANCE OF MASONRY AND WOOD-FRAME HOUSES David B.PERFORMANCE OF MASONRY AND WOOD-FRAME HOUSES David B. Goldsfor those studies used wood- frame construction, The energy

Goldstein, David B.

2012-01-01T23:59:59.000Z

186

Improving the thermal performance of vinyl-framed windows  

Science Conference Proceedings (OSTI)

Over the last five years, vinyl-framed windows have gained an increased market share in both new and retrofit residential construction. This success has been mainly due to their low manufacturing cost and relatively good thermal performance (i.e., total window U-values with double glazing between 0.50 Btu/h{center_dot}ft{sup 2}{center_dot}{degree}F [2.86 W/m{sup 2}{center_dot}K] and 0.30 Btu/h{center_dot}ft{sup 2}{center_dot}{degree}F [1.70 W/m{sup 2}{center_dot}K]). Turning such windows into ``superwindows,`` windows with a U-value of 0.20 Btu/h{center_dot}ft{sup 2}{center_dot}{degree}F (1.14 W/m{sup 2}{center_dot}K) or less that can act as passive solar elements even on north-facing orientations in cold climates, requires further significant decreases in heat transfer through both the glazing system and the frame/edge. Three-layer glazing systems (those with two low-emissivity coatings and a low-conductivity gas fill) offer center-of-glass U-values as low as 0.10 Btu/h{center_dot}ft{sup 2}{center_dot}{degree}F (0.57 W/m{sup 2}{center_dot}K); such glazings are being manufactured today and can be incorporated into existing or new vinyl frame profiles. This paper focuses on the use of a state-of the-art infrared imaging system and a two-dimensional finite-difference model to improve the thermal performance of commercially available vinyl profiles and glazing edge systems. Such evaluation tools are extremely useful in identifying exactly which components and design features limit heat transfer and which act as thermal short circuits. Such an analysis is not possible with conventional whole-window testing in hot boxes where testing uncertainties with superwindows are often greater than proposed improvements.

Beck, F.A.; Arasteh, D.

1992-10-01T23:59:59.000Z

187

Improving the thermal performance of vinyl-framed windows  

Science Conference Proceedings (OSTI)

Over the last five years, vinyl-framed windows have gained an increased market share in both new and retrofit residential construction. This success has been mainly due to their low manufacturing cost and relatively good thermal performance (i.e., total window U-values with double glazing between 0.50 Btu/h[center dot]ft[sup 2][center dot][degree]F [2.86 W/m[sup 2][center dot]K] and 0.30 Btu/h[center dot]ft[sup 2][center dot][degree]F [1.70 W/m[sup 2][center dot]K]). Turning such windows into superwindows,'' windows with a U-value of 0.20 Btu/h[center dot]ft[sup 2][center dot][degree]F (1.14 W/m[sup 2][center dot]K) or less that can act as passive solar elements even on north-facing orientations in cold climates, requires further significant decreases in heat transfer through both the glazing system and the frame/edge. Three-layer glazing systems (those with two low-emissivity coatings and a low-conductivity gas fill) offer center-of-glass U-values as low as 0.10 Btu/h[center dot]ft[sup 2][center dot][degree]F (0.57 W/m[sup 2][center dot]K); such glazings are being manufactured today and can be incorporated into existing or new vinyl frame profiles. This paper focuses on the use of a state-of the-art infrared imaging system and a two-dimensional finite-difference model to improve the thermal performance of commercially available vinyl profiles and glazing edge systems. Such evaluation tools are extremely useful in identifying exactly which components and design features limit heat transfer and which act as thermal short circuits. Such an analysis is not possible with conventional whole-window testing in hot boxes where testing uncertainties with superwindows are often greater than proposed improvements.

Beck, F.A.; Arasteh, D.

1992-10-01T23:59:59.000Z

188

Condensation analysis for plate-frame heat exchangers  

SciTech Connect

A theoretical analysis is presented to predict single component and binary-mixture condensation in plate-frame heat exchangers. A thermodynamic property model based on the Peng-Robinson equation of state was developed for the binary-mixture equilibrium and formulated into a performance prediction program. A set of equations was formulated and a calculation algorithm was developed to predict the local rate of heat and mass transfer for binary mixtures. Friction-factor and heat-transfer-coefficient correlations were developed using experimental data obtained with ammonia condensation. The role of the mass-transfer resistance associated with the condensation process were analyzed for a propane/butane mixture using two limiting cases: (1) no liquid-phase mass-transfer resistance, and (2) infinite liquid-phase mass-transfer resistance. The results show that the vapor-phase mass-transfer resistance is the controlling mechanism for binary-mixture condensation.

Arman, B.; Rabas, T.J.

1995-07-01T23:59:59.000Z

189

Software support tools for high-speed real-time simulations  

Science Conference Proceedings (OSTI)

Frame times as low as 1-2 microseconds are needed for high-speed real-time (HSRT) simulations of power-electronic systems. To achieve such short frame times it is necessary to use special processing platforms and both digital signal processors (DSPs) ... Keywords: electric circuits, real-time simulation, simulation software

J. J. Zenor; R. E. Crosbie; R. Bednar; D. Word; N. G. Hingorani

2009-07-01T23:59:59.000Z

190

Field Techniques | Open Energy Information  

Open Energy Info (EERE)

Field Techniques Field Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Field Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Map surface geology and hydrothermal alteration. Rock samples are used to define lithology. Field and lab analyses can be used to measure the chemical and isotopic constituents of rock samples. Bulk and trace element analysis of rocks, minerals, and sediments. Identify and document surface geology and mineralogy. Rapid and unambiguous identification of unknown minerals.[1] Stratigraphic/Structural: Locates active faults in the area of interest. Map fault and fracture patterns, kinematic information. Can reveal relatively high permeability zones. Provides information about the time and environment which formed a particular geologic unit. Microscopic rock textures can be used to estimate the history of stress and strain, and/or faulting.

191

Scanning transmission electron microscopy strain measurement from millisecond frames of a direct electron charge coupled device  

Science Conference Proceedings (OSTI)

A high-speed direct electron detection system is introduced to the field of transmission electron microscopy and applied to strain measurements in semiconductor nanostructures. In particular, a focused electron probe with a diameter of 0.5 nm was scanned over a fourfold quantum layer stack with alternating compressive and tensile strain and diffracted discs have been recorded on a scintillator-free direct electron detector with a frame time of 1 ms. We show that the applied algorithms can accurately detect Bragg beam positions despite a significant point spread each 300 kV electron causes during detection on the scintillator-free camera. For millisecond exposures, we find that strain can be measured with a precision of 1.3 Multiplication-Sign 10{sup -3}, enabling, e.g., strain mapping in a 100 Multiplication-Sign 100 nm{sup 2} region with 0.5 nm resolution in 40 s.

Mueller, Knut; Rosenauer, Andreas [Institut fuer Festkoerperphysik, Universitaet Bremen, Otto-Hahn-Allee 1, 28359 Bremen (Germany); Ryll, Henning; Ordavo, Ivan; Ihle, Sebastian; Soltau, Heike [PNSensor GmbH, Roemerstrasse 28, 80803 Muenchen (Germany); Strueder, Lothar [Max-Planck-Institut Halbleiterlabor, Otto-Hahn-Ring 6, 81739 Muenchen (Germany); Volz, Kerstin [Materials Science Center and Faculty of Physics, Philipps Universitaet Marburg, Hans-Meerwein-Strasse, 35032 Marburg (Germany); Zweck, Josef [Institut fuer Experimentelle und Angewandte Physik, Universitaet Regensburg, Universitaetsstrasse 31, 93040 Regensburg (Germany)

2012-11-19T23:59:59.000Z

192

Inter-frame motion correction for MR thermometry  

Science Conference Proceedings (OSTI)

Noninvasive temperature measurement is feasible with MRI to monitor changes in thermal therapy. Phase shift based MR thermometry gives an estimate of the relative temperature variation between thermal and baseline images. This technique is limited, however, ...

S. Suprijanto; M. W. Vogel; F. M. Vos; H. A. Vrooman; A. M. Vossepoel

2005-10-01T23:59:59.000Z

193

Ruler measurements give space-time-transformation-independent invariant lengths  

E-Print Network (OSTI)

Two thought experiments are described in which ruler measurements of spatial intervals are performed in different reference frames. They demonstrate that such intervals are frame-independent as well as independent of the nature of the space-time transformation equations. As explained in detail elsewhere, the `length contraction' effect of conventional special relativity theory is therefore spurious and unphysical.

J. H. Field

2013-07-30T23:59:59.000Z

194

External Insulation of Masonry Walls and Wood Framed Walls  

Science Conference Proceedings (OSTI)

The use of exterior insulation on a building is an accepted and effective means to increase the overall thermal resistance of the assembly that also has other advantages of improved water management and often increased air tightness of building assemblies. For thin layers of insulation (1" to 1 1/2"), the cladding can typically be attached directly through the insulation back to the structure. For thicker insulation layers, furring strips have been added as a cladding attachment location. This approach has been used in the past on numerous Building America test homes and communities (both new and retrofit applications), and has been proven to be an effective and durable means to provide cladding attachment. However, the lack of engineering data has been a problem for many designers, contractors, and code officials. This research project developed baseline engineering analysis to support the installation of thick layers of exterior insulation on existing masonry and frame walls. Furthermore, water management details necessary to integrate windows, doors, decks, balconies and roofs were created to provide guidance on the integration of exterior insulation strategies with other enclosure elements.

Baker, P.

2013-01-01T23:59:59.000Z

195

State-of-the-Art Highly Insulating Window Frames - Research and Market Review  

E-Print Network (OSTI)

and spacer effects on window U-value. ASHRAE Transactions,Residential Zero Energy Windows, ASHRAE Transactions, Vol.for low-conductivity window frames, Solar Energy Materials

Gustavsen, Arild

2008-01-01T23:59:59.000Z

196

Developing Low-Conductance Window Frames: Capabilities and Limitations of Current Window Heat Transfer Design Tools  

E-Print Network (OSTI)

and spacer effects on window U- value. ASHRAE Transactions,Enermodal. (2001). Modelling Windows, Glass Doors and OtherA. (2001). Heat transfer in window frames with internal

Gustavsen, Arild

2009-01-01T23:59:59.000Z

197

The Effect of Green Insulation Standards on Moisture Accumulation within Framing of Residential Structures.  

E-Print Network (OSTI)

??Green building standards recommend use of a variety of new thermal insulation products. However, durability of wooden framing used in conjunction with new insulation materials… (more)

Knight, Kevin Brian

2012-01-01T23:59:59.000Z

198

Evaluation of the effect of contact between risers and guide frames on offshore spar platform motions  

E-Print Network (OSTI)

A computer program is developed for the dynamic analysis of a spar platform coupled with mooring lines and risers in waves, winds, and currents. The new multi-contact analysis program is developed for the nonlinear multi-contact coupling between vertical risers and guide frames inside of the spar moon-pool. The program extends capability of the current coupled dynamic analysis program, WINPOST, by adding the capability of analyzing riser effects caused by the contact forces and moments from buoyancy-cans inside the spar moon-pool on the global spar motions. The gap between the buoyancy can and riser guide frames are modeled using three different types of nonlinear gap springs. The new riser model also considers the Coulomb damping between the buoyancy-cans and riser guide frames, and it also calculates the impact force on risers for use in fatigue analysis. The spar platform generally uses vertical risers with dry trees. However, as the water depth increases, the size of the buoyancy-can increases, and it makes installation more difficult. The pneumatic riser support system does not use buoyancy-cans and is an alternative solution to the buoyancy-can approach. The dynamic characteristics of pneumatic riser support system are studied by using the newly developed numerical analysis program. The damped Mathieu instability diagram for the damped Mathieu's equation is developed. Due to spar heave and pitch coupling, Mathieu's instability may become excited in long period waves. In the numerical analysis program, pitch and roll hydrostatic stiffness are recalculated for heave motion in every time step to check Mathieu's instability for the spar platform. Simplified vortex-induced vibration effects on the spar platform are considered in newly developed numerical analysis program, and the results are systematically compared with those of the original program WINPOST. The results in this paper show that the buoyancy-can effect significantly reduces the spar pitch motion, and the Coulomb damping effect also significantly reduces the spar heave motion. The buoyancy-can effect also plays an important role in Mathieu instability. The results also show that a pneumatic riser support system increases the spar heave motion and payload.

Koo, Bon-Jun

2003-08-01T23:59:59.000Z

199

Single and double frame coding of speech LPC parameters using a lattice-based quantization scheme  

Science Conference Proceedings (OSTI)

A lattice-based scheme for the single-frame and the double-frame quantization of the speech line spectral frequency parameters is proposed. The lattice structure provides a low-complexity vector quantization framework, which is implemented using a trellis ... Keywords: CELP, LPC, LSF, interframe coding, intraframe coding, lattice-based quantization, quantization, speech coding

F. Lahouti; A. R. Fazel; A. H. Safavi-Naeini; A. K. Khandani

2006-09-01T23:59:59.000Z

200

Dynamic Analysis of Reinforced Brick Masonry Infilled RC Frames Using 3D Elements under Seismic Loading  

Science Conference Proceedings (OSTI)

Masonry walls are provided basically for the purpose of partitioning and covering but they impart considerable strength and stiffness to the building frame for resisting loads. The strength and stiffness contribution of infill masonry is generally ignored ... Keywords: Masonry, Infill, Frame, Finite Element Analysis

Ramesh S. Manoli; D. S. Prakash

2008-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "techniques time frame" 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

MTS Table Top Load frame [Non-Destructive Evaluation (NDE) and Testing  

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

Engineering> Facilities > Non-Destructive Evaluation Engineering> Facilities > Non-Destructive Evaluation (NDE) and Testing Facilities > MTS Table Top Load frame Non-Destructive Evaluation (NDE) and Testing Facilities Overview MTS Table Top Load Frame X-ray Inspection Systems Other Facilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Non-Destructive Evaluation (NDE) and Testing Facilities MTS Table Top Load frame Bookmark and Share PDF version [167KB] The Non-destructive Evaluation group operates an MTS Table Top Load frame for ultimate strength and life cycle testing of various ceramic, ceramic-matrix (FGI), carbon, carbon fiber, cermet (CMC) and metal alloy engineering samples. The load frame is a servo-hydraulic type designed to function in a closed loop configuration under computer control. The system

202

Numerical analysis of masonry-infilled reinforced concrete frames subjected to seismic loads and experimental evaluation of retrofit techniques  

E-Print Network (OSTI)

size effect in structures,” ASCE J. Eng. Mech. Vol. 116, No.story brick shear walls,” ASCE J. of Struct. Eng. Vol. 84,in seismic resistant building,” ASCE J. of Struct. Eng. Vol.

Koutromanos, Ioannis

2011-01-01T23:59:59.000Z

203

State-of-the-Art Highly Insulating Window Frames - Research and Market  

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

State-of-the-Art Highly Insulating Window Frames - Research and Market State-of-the-Art Highly Insulating Window Frames - Research and Market Review Title State-of-the-Art Highly Insulating Window Frames - Research and Market Review Publication Type Report LBNL Report Number LBNL-1133E Year of Publication 2007 Authors Gustavsen, Arlid, Bjørn Petter Jelle, Dariush K. Arasteh, and Christian Kohler Call Number LBNL-1133E Abstract This document reports the findings of a market and research review related to state-of-the-art highly insulating window frames. The market review focuses on window frames that satisfy the Passivhaus requirements (window U-value less or equal to 0.8 W/m2K), while other examples are also given in order to show the variety of materials and solutions that may be used for constructing window frames with a low thermal transmittance (U-value). The market search shows that several combinations of materials are used in order to obtain window frames with a low U-value. The most common insulating material seems to be Polyurethane (PUR), which is used together with most of the common structural materials such as wood, aluminum, and PVC.

204

Chameleonic dilaton, nonequivalent frames, and the cosmological constant problem in quantum string theory  

Science Conference Proceedings (OSTI)

The chameleonic behavior of the string theory dilaton is suggested. Some of the possible consequences of the chameleonic string dilaton are analyzed in detail. In particular, (1) we suggest a new stringy solution to the cosmological constant problem and (2) we point out the nonequivalence of different conformal frames at the quantum level. In order to obtain these results, we start taking into account the (strong coupling) string loop expansion in the string frame (S-frame), therefore the so-called form factors are present in the effective action. The correct dark energy scale is recovered in the Einstein frame (E-frame) without unnatural fine-tunings and this result is robust against all quantum corrections, granted that we assume a proper structure of the S-frame form factors in the strong coupling regime. At this stage, the possibility still exists that a certain amount of fine-tuning may be required to satisfy some phenomenological constraints. Moreover in the E-frame, in our proposal, all the interactions are switched off on cosmological length scales (i.e., the theory is IR-free), while higher derivative gravitational terms might be present locally (on short distances) and it remains to be seen whether these facts clash with phenomenology. A detailed phenomenological analysis is definitely necessary to clarify these points.

Zanzi, Andrea [Via Pioppa 261, 44123 Pontegradella, Ferrara (Italy)

2010-08-15T23:59:59.000Z

205

Exploiting temporal coherence in real-time rendering  

Science Conference Proceedings (OSTI)

Temporal coherence (TC), the correlation of contents between adjacent rendered frames, exists across a wide range of scenes and motion types in practical real-time rendering. By taking advantage of TC, we can save redundant computation and improve ...

Daniel Scherzer; Lei Yang; Oliver Mattausch

2010-12-01T23:59:59.000Z

206

The Synthetic Dual-Doppler Analysis Technique  

Science Conference Proceedings (OSTI)

Synthetic dual-Doppler (SDD) is a single-Doppler analysis technique that combines measurements from two different times, provided the viewing angle changes significantly. In this study, the viability of the SDD technique is investigated through ...

Brian A. Klimowski; John D. Marwitz

1992-12-01T23:59:59.000Z

207

Category theoretic aspects of chain-valued frames: Part I: Categorical and presheaf theoretic foundations  

Science Conference Proceedings (OSTI)

This paper is Part I of a two-part series dealing with category theoretic aspects of chain-valued frames. A new categorical motivation for lattice-valued frames is given from presheaves, and then, under the assumption that L be a complete chain, it is ... Keywords: L-topological spaces, Anti-stratified/stratified spaces, Characteristic/Martin/stratification functors, Cocompleteness, Completeness, Factorization structures, Image/preimage operators, Iota/omega functors, L-Frm, L-Loc, L-Top, L-frames, Spectrum functors, Universal/co-universal spaces, Upper/lower forgetful functors, Upper/lower free functors

A. Pultr; S. E. Rodabaugh

2008-03-01T23:59:59.000Z

208

Evaluating Satellite-Based Cloud Persistence and Displacement Nowcasting Techniques over Complex Terrain  

Science Conference Proceedings (OSTI)

The Moderate Resolution Imaging Spectroradiometer (MODIS) sensor aboard the Terra and Aqua satellites allows roughly for the same region of Earth to be sampled twice in a nowcasting time frame. Using the MODIS cloud mask at 5-km resolution and ...

Eric M. Guillot; Thomas H. Vonder Haar; John M. Forsythe; Steven J. Fletcher

2012-04-01T23:59:59.000Z

209

Calculation of Eddy Currents In the CTH Vacuum Vessel and Coil Frame  

SciTech Connect

Knowledge of eddy currents in the vacuum vessel walls and nearby conducting support structures can significantly contribute to the accuracy of Magnetohydrodynamics (MHD) equilibrium reconstruction in toroidal plasmas. Moreover, the magnetic fields produced by the eddy currents could generate error fields that may give rise to islands at rational surfaces or cause field lines to become chaotic. In the Compact Toroidal Hybrid (CTH) device (R0 = 0.75 m, a = 0.29 m, B ? 0.7 T), the primary driver of the eddy currents during the plasma discharge is the changing flux of the ohmic heating transformer. Electromagnetic simulations are used to calculate eddy current paths and profile in the vacuum vessel and in the coil frame pieces with known time dependent currents in the ohmic heating coils. MAXWELL and SPARK codes were used for the Electromagnetic modeling and simulation. MAXWELL code was used for detailed 3D finite-element analysis of the eddy currents in the structures. SPARK code was used to calculate the eddy currents in the structures as modeled with shell/surface elements, with each element representing a current loop. In both cases current filaments representing the eddy currents were prepared for input into VMEC code for MHD equilibrium reconstruction of the plasma discharge. __________________________________________________

A. Zolfaghari, A. Brooks, A. Michaels, J. Hanson, and G. Hartwell

2012-09-25T23:59:59.000Z

210

Using reference frames and the Global Positioning System (GPS) to produce control networks for spatial data  

E-Print Network (OSTI)

The Global Positioning System has enabled researchers to gather spatial data on a scale that was, until recently, cost prohibitive. Projects that cover an area of a few hectares can be included in data sets that cover entire countries. The ease at which point locations can be measured over large distances has highlighted an existing problem with data capture. Data collected using one set of control points may or may not overlay data collected using another. This thesis details a procedure for setting base control points that cover very large areas. Data obtained from the International GPS Service for Geodynamics (IGS) is used in conjunction with the International Terrestrial Reference Frame (ITRF) to establish control points anywhere in the world. Researchers utilizing these control points for base station locations or as registration points, are able to produce data with an absolute accuracy of 0.3 meter between projects, countries and continents. The problem of overlaying data has been reduced to the point that it is insignificant. Issues of datum and projections, and the use of existing data sets are addressed. Of special interest are the short project times and resulting cost savings over conventional methods. Specific projects in Texas, Azerbaijan, and Mali are presented. The project in Texas is the same size as the project in Azerbaijan, but on different continents. The project in Mali is much larger and has been the most comprehensive, from setting initial control points to training local researchers in data collection.

Naismith, James Mozeney

1998-01-01T23:59:59.000Z

211

Errors in Fixed and Moving Frame of References: Applications for Conventional and Doppler Radar Analysis  

Science Conference Proceedings (OSTI)

Procedures for the estimation and correction of advection effects with single and multiple conventional and Doppler radars are developed. In the case of scalars or Cartesian vectors, the essence of the method is finding a moving frame of ...

Tzvi Gal-Chen

1982-10-01T23:59:59.000Z

212

Thermal properties of structural details in wood frame homes : analysis and recommendations  

E-Print Network (OSTI)

The wood platform frame home is the dominant design in the United States when it comes to single family housing. Introduced during the mid-nineteenth century, the scheme is a cheap, fast, and proven design that takes ...

Graybeal, Alexander Kung

2010-01-01T23:59:59.000Z

213

Key Elements of and Materials Performance Targets for Highly Insulating Window Frames  

E-Print Network (OSTI)

D. Curcija. 2006. THERM 5.2 / WINDOW 5.2, NFRC SimulationSashlite 2011. The Shashlite window website http://2010. Development of a slim window frame made of glass fibre

Gustavsen, Arild

2012-01-01T23:59:59.000Z

214

Laser wakefield simulation using a speed-of-light frame envelope model  

E-Print Network (OSTI)

Laser wake?eld simulation using a speed-of-light frameAbstract. Simulation of laser wake?eld accelerator (LWFA)extend hundreds of laser wave- lengths transversely and many

Cowan, B.

2010-01-01T23:59:59.000Z

215

Experimental and Numerical Examination of the Thermal Transmittance of High Performance Window Frames  

E-Print Network (OSTI)

windows are often called passive -house wind ows, as windowse window frames, like passive-house windows. In this p aperare supposed to satisfy the Passive house requirements of

Gustavsen Ph.D., Arild

2010-01-01T23:59:59.000Z

216

Uniform-type structures on lattice-valued spaces and frames  

Science Conference Proceedings (OSTI)

By introducing lattice-valued covers of a set, we present a general framework for uniform structures on very general L-valued spaces (for L an integral commutative quantale). By showing, via an intermediate L-valued structure of uniformity, how filters ... Keywords: L-valued space, Axiality, Cover, Entourage, Frame, Galois connection, Girard quantale, Integral commutative quantale, L-valued frame, Locale, Polarity, Quantale, Uniform operator, Uniformity

Javier Gutiérrez García; Iraide Mardones-Pérez; Jorge Picado; María Angeles de Prada Vicente

2008-10-01T23:59:59.000Z

217

An efficient compound-element for potential progressive collapse analysis of steel frames with semi-rigid connections  

Science Conference Proceedings (OSTI)

In this paper, the formulation of a novel 1D frame compound-element for the materially and geometrically non-linear analysis of steel frames with flexible connections is outlined. The element is formulated based on the force interpolation concept and ... Keywords: Alternate load path, Force-based method, Non-linear analysis, Semi-rigid connection, Steel frame, Total secant formulation

Hamid R. Valipour; Mark Bradford

2012-11-01T23:59:59.000Z

218

Key Elements of and Materials Performance Targets for Highly Insulating Window Frames  

DOE Green Energy (OSTI)

The thermal performance of windows is important for energy efficient buildings. Windows typically account for about 30-50 percent of the transmission losses though the building envelope, even if their area fraction of the envelope is far less. The reason for this can be found by comparing the thermal transmittance (U-factor) of windows to the U-factor of their opaque counterparts (wall, roof and floor constructions). In well insulated buildings the U-factor of walls, roofs an floors can be between 0.1-0.2 W/(m2K). The best windows have U-values of about 0.7-1.0. It is therefore obvious that the U-factor of windows needs to be reduced, even though looking at the whole energy balance for windows (i.e. solar gains minus transmission losses) makes the picture more complex.In high performance windows the frame design and material use is of utmost importance, as the frame performance is usually the limiting factor for reducing the total window U-factor further. This paper describes simulation studies analyzing the effects on frame and edge-of-glass U-factors of different surface emissivities as well as frame material and spacer conductivities. The goal of this work is to define materials research targets for window frame components that will result in better frame thermal performance than is exhibited by the best products available on the market today.

Gustavsen, Arild; Grynning, Steinar; Arasteh, Dariush; Jelle, Bjorn Petter; Goudey, Howdy

2011-03-28T23:59:59.000Z

219

Time-Resolved  

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

Time-Resolved Time-Resolved Time-Resolved Print Of the four fundamental parameters that we use to perceive the physical world (energy, momentum, position, and time) three correspond to the three broad categories of synchrotron experimental measurement techniques: spectroscopy (energy), scattering (momentum), and imaging (position). The fourth parameter-time-can in principle be applied to all the techniques. At the ALS, many experiments can be carried out in real time, with data being recorded from the same sample as it changes over time. Some time-resolved experiments take advantage of the pulsed nature of the ALS's synchrotron radiation, which, like a strobe light, can capture a series of "snapshots" of a process that, when viewed sequentially, show us how a given process evolves over time. Other experiments simply require two pulses: one to "pump" energy into the sample system and a second to probe the system's excited state.

220

Design of a 16T Nb{sub3}Sn Twin Bore Accelerator Dipole with a Window-frame Conductor Layout  

E-Print Network (OSTI)

Accelerator Dipole with a Window-Frame Conductor Layout*Accelerator Dipole with a Window-frame Conductor Layout, J.Nb3Sn Twin Dipole with a Window-Frame Conductor Layout J.M.

van Oort, J.M.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "techniques time frame" 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

Thermal Impact of Fasteners in High-Performance Wood-Framed Walls: Preprint  

SciTech Connect

Buildings are heavy consumers of energy, and residential building design is rapidly addressing topics to maximize energy conservation en route to net-zero energy consumption. Annual energy analysis of a building informs the choice among disparate energy measures, for cost, durability, occupant comfort, and whole-house energy use. Physics-based and empirical models of elements of a building are used in such analyses. High-performance wood-framed walls enable builders to construct homes that use much less than 40% of the energy consumed by similar homes built to minimum code. Modeling for these walls has considered physical features such as framing factor, insulation and framing properties, roughness and convective effects, and air leakage. The thermal effects of fasteners used to construct these walls have not been fully evaluated, even though their thermal conductivity is orders of magnitudes higher than that of other building materials. Drywall screws and siding nails are considered in this finite element thermal conductivity analysis of wall sections that represent wood-framed walls that are often used in high-performance homes. Nails and screws reduce even the best walls' insulating performance by approximately 3% and become increasingly significant as the framing factor increases.

Christensen, D.

2011-01-01T23:59:59.000Z

222

Thermal Impact of Fasteners in High-Performance Wood-Framed Walls: Preprint  

SciTech Connect

Buildings are heavy consumers of energy, and residential building design is rapidly addressing topics to maximize energy conservation en route to net-zero energy consumption. Annual energy analysis of a building informs the choice among disparate energy measures, for cost, durability, occupant comfort, and whole-house energy use. Physics-based and empirical models of elements of a building are used in such analyses. High-performance wood-framed walls enable builders to construct homes that use much less than 40% of the energy consumed by similar homes built to minimum code. Modeling for these walls has considered physical features such as framing factor, insulation and framing properties, roughness and convective effects, and air leakage. The thermal effects of fasteners used to construct these walls have not been fully evaluated, even though their thermal conductivity is orders of magnitudes higher than that of other building materials. Drywall screws and siding nails are considered in this finite element thermal conductivity analysis of wall sections that represent wood-framed walls that are often used in high-performance homes. Nails and screws reduce even the best walls' insulating performance by approximately 3% and become increasingly significant as the framing factor increases.

Christensen, D.

2011-01-01T23:59:59.000Z

223

Analytical Modeling of Wood Frame Shear Walls Subjected to Vertical Load  

E-Print Network (OSTI)

A nonlinear automated parameter fitted analytical model that numerically predicts the load-displacement response of wood frame shear walls subjected to static monotonic loading with and without vertical load is presented. This analytical model referred to as Analytical Model of wood frame SHEar walls subjected to Vertical load (AMSHEV) is based on the kinematic behavior of wood frame shear walls and captures significant characteristics observed from experimental testing through appropriate modeling of three failure mechanisms that can occur within a shear wall under static monotonic load: 1) failure of sheathing-to-framing connectors, 2) failure of vertical studs, and 3) uplift of end studs from bottom sill. Previous models have not accounted for these failure mechanisms as well as the inclusion of vertical load, which has shown to reveal beneficial effects such as increasing the ultimate load capacity and limiting uplift of the wall as noted in experimental tests. Results from the proposed numerical model capture these effects within 7% error of experimental test data even when different magnitudes of vertical load are applied to predict the ultimate load capacity of wood frame shear walls.

Nguyendinh, Hai

2011-05-01T23:59:59.000Z

224

Waterflood surveillance techniques; A reservoir management approach  

SciTech Connect

The reservoir management aspects of waterflooding span the time before the start of waterflood to the time when the secondary recovery either is uneconomic or is changed to an enhanced recovery. This paper reviews waterflood techniques and reports on surveillance techniques in the management of waterflooding of oil wells.

Thakur, G.C. (Chevron USA Inc. (US))

1991-10-01T23:59:59.000Z

225

U-212: RSA Authentication Manager Flaws Permit Cross-Site and Cross-Frame  

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

2: RSA Authentication Manager Flaws Permit Cross-Site and 2: RSA Authentication Manager Flaws Permit Cross-Site and Cross-Frame Scripting and URL Redirection Attacks U-212: RSA Authentication Manager Flaws Permit Cross-Site and Cross-Frame Scripting and URL Redirection Attacks July 13, 2012 - 7:00am Addthis PROBLEM: RSA Authentication Manager Flaws Permit Cross-Site and Cross-Frame Scripting and URL Redirection Attacks PLATFORM: RSA Authentication Manager 7.1 is vulnerable; other versions may also be affected. ABSTRACT: RSA Authentication Manager is prone to multiple security vulnerabilities because it fails to properly sanitize user-supplied input. Attackers can exploit these issues to execute arbitrary script or HTML code, steal cookie-based authentication credentials, and conduct phishing attacks. Other attacks may also be possible.

226

FRAME DEPENDENCE OF THE ELECTRIC FIELD SPECTRUM OF SOLAR WIND TURBULENCE  

Science Conference Proceedings (OSTI)

We present the first survey of electric field data using the ARTEMIS spacecraft in the solar wind to study inertial range turbulence. It was found that the average perpendicular spectral index of the electric field depends on the frame of measurement. In the spacecraft frame it is -5/3, which matches the magnetic field due to the large solar wind speed in Lorentz transformation. In the mean solar wind frame, the electric field is primarily due to the perpendicular velocity fluctuations and has a spectral index slightly shallower than -3/2, which is close to the scaling of the velocity. These results are an independent confirmation of the difference in scaling between the velocity and magnetic field, which is not currently well understood. The spectral index of the compressive fluctuations was also measured and found to be close to -5/3, suggesting that they are not only passive to the velocity but may also interact nonlinearly with the magnetic field.

Chen, C. H. K.; Bale, S. D.; Salem, C.; Mozer, F. S., E-mail: chen@ssl.berkeley.edu [Space Sciences Laboratory, University of California, Berkeley, CA 94720 (United States)

2011-08-20T23:59:59.000Z

227

Usage of Friction-damped Braced Frames for Seismic Vibration Control  

E-Print Network (OSTI)

This study presents the results of experimental work that examines the functionality of friction-damped braced frames during seismic events. The simplicity and efficacy of this friction device as a means of passive vibration control suggest that it may have notable implications in the field of structural engineering. Little scholarship has been devoted to this issue in recent years, and further research to advance our understanding of its possible implementations is necessary. To measure the functionality of this type of frame, this study first examines and compares virtual models of a building modeling the effect of friction damping versus that same building without such damping. It then corroborates these findings by presenting the results of physical experimentation on a scale model of the building, both with and without damping. The validation of the virtual models by the physical model provides credence to the usage of friction-damped braced frames as a seismic energy dissipating system.

Fink, Brynnan 1992-

2012-05-01T23:59:59.000Z

228

Unified Field Theory From Enlarged Transformation Group. The Covariant Derivative for Conservative Coordinate Transformations and Local Frame Transformations  

E-Print Network (OSTI)

Pandres has developed a theory in which the geometrical structure of a real four-dimensional space-time is expressed by a real orthonormal tetrad, and the group of diffeomorphisms is replaced by a larger group called the conservation group. This paper extends the geometrical foundation for Pandres' theory by developing an appropriate covariant derivative which is covariant under all local Lorentz (frame) transformations, including complex Lorentz transformations, as well as conservative transformations. After defining this extended covariant derivative, an appropriate Lagrangian and its resulting field equations are derived. As in Pandres' theory, these field equations result in a stress-energy tensor that has terms which may automatically represent the electroweak field. Finally, the theory is extended to include 2-spinors and 4-spinors.

Edward Lee Green

2009-07-22T23:59:59.000Z

229

Relativistic ultrafast rendering using time-of-flight imaging  

Science Conference Proceedings (OSTI)

We capture ultrafast movies of light in motion and synthesize physically valid visualizations. The effective exposure time for each frame is under two picoseconds (ps). Capturing a 2D video with this time resolution is highly challenging, given the low ... Keywords: relativistic effects, streak sensor, time-resolved imaging, ultrafast optics

Andreas Velten; Di Wu; Adrian Jarabo; Belen Masia; Christopher Barsi; Everett Lawson; Chinmaya Joshi; Diego Gutierrez; Moungi G. Bawendi; Ramesh Raskar

2012-08-01T23:59:59.000Z

230

Propagation or failure of detonation across an air gap in an LX-17 column: continuous time-dependent detonation or shock speed using the Embedded Fiber Optic (EFO) technique  

SciTech Connect

The detailed history of the shock/detonation wave propagation after crossing a room-temperature-room-pressure (RTP) air gap between a 25.4 mm diameter LX-17 donor column and a 25.4 mm diameter by 25.4 mm long LX-17 acceptor pellet is investigated for three different gap widths (3.07, 2.08, and 0.00 mm) using the Embedded Fiber Optic (EFO) technique. The 2.08 mm gap propagated and the 3.07 mm gap failed and this can be seen clearly and unambiguously in the EFO data even though the 25.4 mm-long acceptor pellet would be considered quite short for a determination by more traditional means such as pins.

Hare, D E; Chandler, J B; Compton, S M; Garza, R G; Grimsley, D A; Hernandez, A; Villafana, R J; Wade, J T; Weber, S R; Wong, B M; Souers, P C

2008-01-16T23:59:59.000Z

231

Category theoretic aspects of chain-valued frames: Part II: Applications to lattice-valued topology  

Science Conference Proceedings (OSTI)

This paper is Part II of a two-part series dealing with category theoretic aspects of chain-valued frames. Using the categorical properties established for L-Frm in Part I for L a complete chain, this paper constructs ''upper'' free functor L and ''lower'' ... Keywords: Factorization structures, Anti-stratified/stratified spaces, Characteristic/Martin/stratification functors, Cocompleteness, Completeness, Image/preimage operators, Iota/omega functors, L-Frm, L-Loc, L-Top, L-frames, L-topological spaces, Spectrum functors, Universal/co-universal spaces, Upper/lower forgetful functors, Upper/lower free functors

A. Pultr; S. E. Rodabaugh

2008-03-01T23:59:59.000Z

232

Category:Electromagnetic Sounding Techniques | Open Energy Information  

Open Energy Info (EERE)

Electromagnetic Sounding Techniques Electromagnetic Sounding Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Electromagnetic Sounding Techniques page? For detailed information on Electromagnetic Sounding Techniques, click here. Category:Electromagnetic Sounding Techniques Add.png Add a new Electromagnetic Sounding Techniques Technique Subcategories This category has only the following subcategory. M [×] Magnetotelluric Techniques‎ 1 pages Pages in category "Electromagnetic Sounding Techniques" The following 2 pages are in this category, out of 2 total. M Magnetotelluric Techniques T Time-Domain Electromagnetics Retrieved from "http://en.openei.org/w/index.php?title=Category:Electromagnetic_Sounding_Techniques&oldid=689837"

233

Climate-sensitive decisions and time frames: a cross-sectoral analysis of information pathways in the Carolinas  

Science Conference Proceedings (OSTI)

This paper analyzes the information dissemination pathways that support climate-sensitive decisions in North and South Carolina. The study draws from over 100 online questionnaires and follow-up interviews with leaders in the forestry, natural ...

Kirsten Lackstrom; Nathan P. Kettle; Benjamin Haywood; Kirstin Dow

234

Real time quantitative elastography using supersonic shear wave imaging  

Science Conference Proceedings (OSTI)

Supersonic Shear Imaging (SSI) is a quantitative stiffness imaging technique based on the combination of a radiation force induced in tissue by an ultrasonic beam and ultrafast ultrasound imaging sequence (up to more than 10000 frames per second) catching ... Keywords: cancer, diagnosis, elastography, ultrafast imaging, ultrasound

Mickael Tanter; Mathieu Pernot; Gabriel Montaldo; Jean-Luc Gennisson; Eric Bavu; Emilie Macé; Thu-Mai Nguyen; Mathieu Couade; Mathias Fink

2010-04-01T23:59:59.000Z

235

Bottom Frame  

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

X-ray Absorption Spectroscopy at SSRL X-ray Absorption Spectroscopy at SSRL Welcome to the home page of the Structural Molecular Biology/X-ray Absorption Spectroscopy Group at Stanford Synchrotron Radiation Laboratory. The SMB/XAS group develops methodology and instrumentation, and provides a wide array of equipment, software and services/support for x-ray absorption spectroscopy users at SSRL. Scientific focus is on dilute metalloprotein XAS, microbeam imaging/XAS, low-Z XAS (S and Cl etc.), and polarized single crystal XAS studies, for which specialized facilities are made available. Equipment ranges from advanced solid-state array x-ray fluorescence detector systems, liquid-He cryostats and capillary/ K-B optic micro-XAS instrumentation to wet-laboratory facilities. Software provided by the

236

Comparison of Energy Needed to Heat Greenhouses and Insulated Frame Buildings Used in Aquaculture1  

E-Print Network (OSTI)

be as low as $4 to $6 per square foot. Construction costs for wood or metal frame buildings are greater than for the structure can be as low as $1 per square foot, but plastic covered greenhouse structures have structure is easy to construct on almost any site and has a low initial cost. Building material costs

Watson, Craig A.

237

Citrix CCA MetaFrame 1.8 for Windows: Exam 218  

Science Conference Proceedings (OSTI)

From the Book:Welcome toCitrix CCA MetaFrame 1.8 for Windows Exam Cram! Whether this is your first or your fifteenth Exam Cram book, you'll find information here and in Chapter 1 that will help ensure your success as you pursue knowledge, ...

Phil Duffield; Roddy Rodstein

2001-04-01T23:59:59.000Z

238

On enhancing H.264/AVC video rate control by PSNR-based frame complexity estimation  

Science Conference Proceedings (OSTI)

In this paper, we present a PSNR-based frame complexity estimation to improve H.264/AVC rate control. Our scheme is based on adding PSNR-based complexity estimation to the existing mean absolute difference based (MAD-based) complexity measure to form ...

Minqiang Jiang; Nam Ling

2005-02-01T23:59:59.000Z

239

A new moving frame to extract scattering phases in lattice QCD  

Science Conference Proceedings (OSTI)

We present a derivation of the finite-size formulae in a moving frame with total momentum P=(2pi/L)(e_1+e_2). These formulae allow us to calculate the S-wave and P-wave scattering phases at more energies with a fixed lattice size and thus help us to determine the resonance parameters precisely.

Dru Renner,Xu Feng,Karl Jansen

2011-04-01T23:59:59.000Z

240

Control of Parallel-Connected Bidirectional AC-DC Converters in Stationary Frame for Microgrid  

E-Print Network (OSTI)

Control of Parallel-Connected Bidirectional AC-DC Converters in Stationary Frame for Microgrid-- With the penetration of renewable energy in modern power system, microgrid has become a popular application worldwide. In this paper, parallel-connected bidirectional converters for AC and DC hybrid microgrid application

Teodorescu, Remus

Note: This page contains sample records for the topic "techniques time frame" 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

Two-Dimensional Computational Fluid Dynamics and Conduction Simulations of Heat Transfer in Horizontal Window Frames with Internal Cavities  

E-Print Network (OSTI)

the two-dimensional heat transfer through building products.Gustavsen, A. 2001. Heat transfer in window frames withand CFD Simulations of Heat Transfer in Horizontal Window

Gustavsen, Arlid

2008-01-01T23:59:59.000Z

242

Dose Reduction Techniques  

SciTech Connect

As radiation safety specialists, one of the things we are required to do is evaluate tools, equipment, materials and work practices and decide whether the use of these products or work practices will reduce radiation dose or risk to the environment. There is a tendency for many workers that work with radioactive material to accomplish radiological work the same way they have always done it rather than look for new technology or change their work practices. New technology is being developed all the time that can make radiological work easier and result in less radiation dose to the worker or reduce the possibility that contamination will be spread to the environment. As we discuss the various tools and techniques that reduce radiation dose, keep in mind that the radiological controls should be reasonable. We can not always get the dose to zero, so we must try to accomplish the work efficiently and cost-effectively. There are times we may have to accept there is only so much you can do. The goal is to do the smart things that protect the worker but do not hinder him while the task is being accomplished. In addition, we should not demand that large amounts of money be spent for equipment that has marginal value in order to save a few millirem. We have broken the handout into sections that should simplify the presentation. Time, distance, shielding, and source reduction are methods used to reduce dose and are covered in Part I on work execution. We then look at operational considerations, radiological design parameters, and discuss the characteristics of personnel who deal with ALARA. This handout should give you an overview of what it takes to have an effective dose reduction program.

WAGGONER, L.O.

2000-05-16T23:59:59.000Z

243

Electron Based Techniques  

Science Conference Proceedings (OSTI)

Mar 5, 2013 ... Characterization of Materials through High Resolution Coherent Imaging: Electron Based Techniques Sponsored by: TMS Structural Materials ...

244

Milling Techniques - TMS  

Science Conference Proceedings (OSTI)

February 4-8 · 1996 TMS ANNUAL MEETING · Anaheim, California. SYNTHESIS AND PROCESSING OF NANOCRYSTALLINE POWDER III: Milling Techniques ...

245

Time-Domain Electromagnetics | Open Energy Information  

Open Energy Info (EERE)

Time-Domain Electromagnetics Time-Domain Electromagnetics Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Time-Domain Electromagnetics Details Activities (10) Areas (10) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electromagnetic Sounding Techniques Information Provided by Technique Lithology: Detection of rock units or geological features with contrasting apparent resistivity. Stratigraphic/Structural: Structural information may be inferred from TDEM data. Hydrological: Hydrological information such as depth to groundwater table may be determined. Thermal: Extent of hydrothermal alteration mineralogy may be inferred. Cost Information

246

Fast 2-D camera control, data acquisition, and database techniques for edge studies on NSTX  

E-Print Network (OSTI)

-by-frame examination is not practical. This paper describes image analysis, database techniques, and visualization (typically referred to as "blobs") near the plasma edge. Software tools that generate statistics of blob affect plasma confinement and heat loads on plasma facing components, and are thus of particular interest

Princeton Plasma Physics Laboratory

247

Improved modeling techniques for turbomachinery flow fields  

DOE Green Energy (OSTI)

This program has the objective of developing an improved methodology for modeling turbomachinery flow fields, including the prediction of losses and efficiency. Specifically, the program addresses the treatment of the mixing stress tensor terms attributed to deterministic flow field mechanisms required in steady-state Computational Fluid Dynamic (CFD) models for turbomachinery flow fields. These mixing stress tensors arise due to spatial and temporal fluctuations (in an absolute frame of reference) caused by rotor-stator interaction due to various blade rows and by blade-to-blade variation of flow properties. This will be accomplished in a cooperative program by Penn State University and the Allison Engine Company. These tasks include the acquisition of previously unavailable experimental data in a high-speed turbomachinery environment, the use of advanced techniques to analyze the data, and the development of a methodology to treat the deterministic component of the mixing stress tenor.

Lakshminarayana, B.; Fagan, J.R. Jr.

1995-12-31T23:59:59.000Z

248

A hybrid-mixed finite element formulation for the geometrically exact analysis of three-dimensional framed structures  

Science Conference Proceedings (OSTI)

This paper addresses the development of a hybrid-mixed finite element formulation for the quasi-static geometrically exact analysis of three-dimensional framed structures with linear elastic behavior. The formulation is based on a modified principle ... Keywords: Complementary energy principle, Geometrically exact analysis, Hybrid-mixed finite elements, One-dimensional beam model, Three-dimensional framed structures

H. A. Santos; P. M. Pimenta; J. P. Almeida

2011-11-01T23:59:59.000Z

249

16000-64000 B pMTU experiments with simulation: The case for super jumbo frames at Supercomputing '05  

Science Conference Proceedings (OSTI)

This paper presents a case study including the results and preliminary simulations for a series of Ethernet-based Xnet ''super jumbo frame'' (SJF) experiments conducted prior to and at Supercomputing '05, for up-to-64000 B path MTU. As far as we are ... Keywords: Maximum transmission unit, Network protocols, Network testing, Networks, Path MTU, Super jumbo frames

W. Rutherford; L. Jorgenson; M. Siegert; P. Van Epp; L. Liu

2007-06-01T23:59:59.000Z

250

Numerical methods for instability mitigation in the modeling of laser wakefield accelerators in a Lorentz-boosted frame  

Science Conference Proceedings (OSTI)

Modeling of laser-plasma wakefield accelerators in an optimal frame of reference [1] has been shown to produce orders of magnitude speed-up of calculations from first principles. Obtaining these speedups required mitigation of a high-frequency instability ... Keywords: Boosted frame, Laser wakefield acceleration, Numerical instability, Particle-in-cell, Plasma simulation, Special relativity

J. -L. Vay; C. G. R. Geddes; E. Cormier-Michel; D. P. Grote

2011-07-01T23:59:59.000Z

251

Power reduction techniques for microprocessor systems  

Science Conference Proceedings (OSTI)

Power consumption is a major factor that limits the performance of computers. We survey the “state of the art” in techniques that reduce the total power consumed by a microprocessor system over time. These techniques are applied at various ... Keywords: Energy dissipation, power reduction

Vasanth Venkatachalam; Michael Franz

2005-09-01T23:59:59.000Z

252

A one-story, slab-on-grad~ steel framed control building approxima  

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

one-story, slab-on-grad~ steel framed control building approximately 50 by 120 feet one-story, slab-on-grad~ steel framed control building approximately 50 by 120 feet would be constructed along the eastern portion of the expansion site. The transformer, capacitor banks, and cooling equipment would be supported on about 200 individual concrete spread foundations. Construction of the substation expansion would require approximately six feet of fill over the entire area, or approximately 50-55 thousand cubic yards of fill. Construction of the access road would require approximately 20-25 thousand cubic yards of fill. Concrete footings and foundations would require approximately 1800-2000 cubic yards of concrete. Site grading and foundation work would begin in August, 1992, and continue over a six-month period. During that period, the average number of fill trucks per day would range

253

The inner structure of collisionless magnetic reconnection: The electron-frame dissipation measure and Hall fields  

Science Conference Proceedings (OSTI)

It was recently proposed that the electron-frame dissipation measure, the energy transfer from the electromagnetic field to plasmas in the electron's rest frame, identifies the dissipation region of collisionless magnetic reconnection [Zenitani et al., Phys. Rev. Lett. 106, 195003 (2011)]. The measure is further applied to the electron-scale structures of antiparallel reconnection, by using two-dimensional particle-in-cell simulations. The size of the central dissipation region is controlled by the electron-ion mass ratio, suggesting that electron physics is essential. A narrow electron jet extends along the outflow direction until it reaches an electron shock. The jet region appears to be anti-dissipative. At the shock, electron heating is relevant to a magnetic cavity signature. The results are summarized to a unified picture of the single dissipation region in a Hall magnetic geometry.

Zenitani, Seiji; Hesse, Michael; Klimas, Alex; Black, Carrie; Kuznetsova, Masha [NASA Goddard Space Flight Center, Greenbelt, Maryland 20771 (United States)

2011-12-15T23:59:59.000Z

254

On a Special Transformation to a Non-Inertial, Radially Rigid Reference Frame  

E-Print Network (OSTI)

We discuss the conditions under which a body, moving non-inertially in Minkowski space, can preserve its size. Under these conditions, using a series expansion of the generalized Lorentz transformation, we ?nd a coor- dinate transformation connecting the laboratory inertial reference frame S and the rigid non-inertial reference frame s which moves without its own rotation with respect to S. Direct consequences of this transformation are: (a) desynchronization, in system s, of the coordinate clocks of s which were previously synchronized in S, and (b) a kinematic contraction of a ruler of system s observed in S. We also consider the dependence of the transfor- mation vector parameter on the proper coordinates of s.

Vitaliy Voytik

2013-08-30T23:59:59.000Z

255

Interpreting the Neutron's Electric Form Factor: Rest Frame Charge Distribution or Foldy Term?  

E-Print Network (OSTI)

The neutron's electric form factor contains vital information on nucleon structure, but its interpretation within many models has been obscured by relativistic effects. I demonstrate that, to leading order in the relativistic expansion of a constituent quark model, the Foldy term cancels exactly against a contribution to the Dirac form factor F_1 to leave intact the naive interpretation of G^n_E as arising from the neutron's rest frame charge distribution.

Nathan Isgur

1998-12-03T23:59:59.000Z

256

Energy efficiency and QoS optimisations of IEEE 802.11 communications using frame aggregation  

Science Conference Proceedings (OSTI)

This paper introduces a new mechanism for IEEE 802.11 infrastructure networks that allows to save energy on battery powered devices by adding some processing on the wireless Access Point (AP). Although the main advantage of this mechanism is ... Keywords: IEEE 80211, MAC, QoS, WLANs, battery powered devices, embedded devices, energy consumption, energy efficiency, frame aggregation, latency, local area networks, medium access control, optimisation, quality of service, wireless LANs, wireless networks

Jean Lorchat; Thomas Noel

2006-02-01T23:59:59.000Z

257

Applied Science/Techniques  

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

Applied Science/Techniques Applied Science/Techniques Applied Science/Techniques Print The ALS is an excellent incubator of new scientific techniques and instrumentation. Many of the technical advances that make the ALS a world-class soft x-ray facility are developed at the ALS itself. The optical components in use at the ALS-mirrors and lenses optimized for x-ray wavelengths-require incredibly high-precision surfaces and patterns (often formed through extreme ultraviolet lithography at the ALS) and must undergo rigorous calibration and testing provided by beamlines and equipment from the ALS's Optical Metrology Lab and Berkeley Lab's Center for X-Ray Optics. New and/or continuously improved experimental techniques are also a crucial element of a thriving scientific facility. At the ALS, examples of such "technique" highlights include developments in lensless imaging, soft x-ray tomography, high-throughput protein analysis, and high-power coherent terahertz radiation.

258

Steady-State Thermal Performance Evaluation of Steel-Framed Wall Assembly with Local Foam Insulation  

DOE Green Energy (OSTI)

During January and May, 2009, two configurations of steel-framed walls constructed with conventional 2 4 steel studs insulated with R-19 ~14cm. (5.5-in. thick) and R-13 ~9cm. (3.5-in. thick) fiberglass insulation batts were tested in the Oak Ridge National Laboratory (ORNL) guarded hot-box using ASTM C1363 test procedure. The first test wall used conventional 2 4 steel studs insulated with 2.5-cm. (1-in.) thick foam profiles, called stud snugglers. These stud snugglers converted the 2 4 wall assembly into a 2 6 assembly allowing application of R-19 fiberglass insulation. The second wall tested for comparison was a conventional 2 4 steel stud wall using R-13 insulation batts. Further, numerical simulations were performed in order to evaluate the steady-state thermal performance of various wood- and steel-framed wall assemblies. The effects of adding the stud-snugglers to the wood and steel studs were also investigated numerically. Different combinations of insulation and framing factor were used in the simulations.

Kosny, Jan [ORNL; Biswas, Kaushik [ORNL; Childs, Phillip W [ORNL

2010-01-01T23:59:59.000Z

259

Managing time  

Science Conference Proceedings (OSTI)

Professionals overwhelmed with information glut can find hope from new insights about time management.

Peter J. Denning

2011-03-01T23:59:59.000Z

260

Multicolor Underwater Imaging Techniques.  

E-Print Network (OSTI)

??Studies were conducted on multispectral polarimetric subtraction imaging techniques for underwater imaging that use a broadband light source. The main objective of this study was… (more)

Waggoner, Douglas Scott

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "techniques time frame" 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

Data Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Data Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Data and Modeling Techniques Exploration Sub Group: Data Techniques Parent Exploration Technique: Data and Modeling Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Data Techniques: The collection, processing, and interpretation of data from various methods so accurate interpretations can be made about the subject matter. Other definitions:Wikipedia Reegle Introduction Data techniques are any technique where data is collected and organized in a manner so that the information is useful for geothermal purposes. The

262

LLNL engineer spends time building affordable homes  

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

atl_0103_williams atl_0103_williams 01/03/2014 LLNL engineer Alicia Williams, who volunteers for Habitat for Humanity, installs wood framing. LLNL engineer spends time building affordable homes Kenneth K Ma, LLNL, (925) 423-7602, ma28@llnl.gov Alicia Williams inspects roofing trusses at a construction site. Alicia Williams is developing technology to strengthen America's security and building homes to provide low-income families with affordable housing. The Lawrence Livermore National Laboratory mechanical engineer in the Defense Technologies Engineering Division (DTED) is working on a weapons certification plan to support stockpile stewardship. But what she does on her free time is equally impressive. Williams is a Habitat for Humanity volunteer who spends her Saturdays laboring on rooftops, where she installs siding, nails in frames and puts

263

Contamination Control Techniques  

SciTech Connect

Welcome to a workshop on contamination Control techniques. This work shop is designed for about two hours. Attendee participation is encouraged during the workshop. We will address different topics within contamination control techniques; present processes, products and equipment used here at Hanford and then open the floor to you, the attendees for your input on the topics.

EBY, J.L.

2000-05-16T23:59:59.000Z

264

Applied Science/Techniques  

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

Applied Science/Techniques Print Applied Science/Techniques Print The ALS is an excellent incubator of new scientific techniques and instrumentation. Many of the technical advances that make the ALS a world-class soft x-ray facility are developed at the ALS itself. The optical components in use at the ALS-mirrors and lenses optimized for x-ray wavelengths-require incredibly high-precision surfaces and patterns (often formed through extreme ultraviolet lithography at the ALS) and must undergo rigorous calibration and testing provided by beamlines and equipment from the ALS's Optical Metrology Lab and Berkeley Lab's Center for X-Ray Optics. New and/or continuously improved experimental techniques are also a crucial element of a thriving scientific facility. At the ALS, examples of such "technique" highlights include developments in lensless imaging, soft x-ray tomography, high-throughput protein analysis, and high-power coherent terahertz radiation.

265

Shock Timing Techniques for Ignition Capsules on the NIF  

Science Conference Proceedings (OSTI)

Results from a series of shock trajectory measurements in planar liquid deuterium targets will set the pulse shape they use for ignition capsules at the National Ignition Facility. They discuss outstanding issues for this concept, in particular, ideas for certifying that the drive on a planar sample is the same as on a spherical capsule.

Munro, D H; Haan, S W; Collins, G W; Celliers, P M

2003-09-02T23:59:59.000Z

266

Entropic Time  

Science Conference Proceedings (OSTI)

The formulation of quantum mechanics within the framework of entropic dynamics includes several new elements. In this paper we concentrate on one of them: the implications for the theory of time. Entropic time is introduced as a book-keeping device to keep track of the accumulation of changes. One new feature is that, unlike other concepts of time appearing in the so-called fundamental laws of physics, entropic time incorporates a natural distinction between past and future.

Caticha, Ariel [Department of Physics, University at Albany-SUNY, Albany, NY 12222 (United States)

2011-03-14T23:59:59.000Z

267

Electrical Techniques | Open Energy Information  

Open Energy Info (EERE)

Electrical Techniques Electrical Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Electrical Techniques Details Activities (0) Areas (0) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Geophysical Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png Electrical Techniques: Electrical techniques aim to image the electrical resistivity of the

268

Geochemical Techniques | Open Energy Information  

Open Energy Info (EERE)

Geochemical Techniques Geochemical Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Geochemical Techniques Details Activities (0) Areas (0) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geochemical Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Geochemical Techniques: No definition has been provided for this term. Add a Definition Related Techniques Geochemical Techniques Geochemical Data Analysis Geothermometry Gas Geothermometry Isotope Geothermometry Liquid Geothermometry Cation Geothermometers Multicomponent Geothermometers Silica Geothermometers Thermal Ion Dispersion

269

Steel-framed buildings: Impacts of wall detail configurations on the whole wall thermal performance  

SciTech Connect

The main objective of this paper is the influence of architectural wall details on the whole wall thermal performance. Whole wall thermal performance analysis was performed for six light gage steel-framed wall systems (some with wood components). For each wall system, all wall details were simulated using calibrated 3-D finite difference computer modeling. The thermal performance of the six steel-framed wall systems included various system details and the whole wall system thermal performance for a typical single-story ranch house. Currently, predicted heat losses through building walls are typically based on measurements of the wall system clear wall area using test methods such as ASTM C 236 or are calculated by one of the procedures recommended in the ASHRAE Handbook of Fundamentals that often is carried out for the clear wall area exclusively. In this paper, clear wall area is defined as the part of the wall system that is free of thermal anomalies due to building envelope details or thermally unaffected by intersections with other surfaces of the building envelope. Clear wall experiments or calculations normally do not include the effects of building envelope details such as corners, window and door openings, and structural intersections with roofs, floors, ceilings, and other walls. In steel-framed wall systems, these details typically consist of much more structural components than the clear wall. For this situation, the thermal properties measured or calculated for the clear wall area do not adequately represent the total wall system thermal performance. Factors that would impact the ability of today`s standard practice to accurately predict the total wall system thermal performance are the accuracy of the calculation methods, the area of the total wall that is clear wall, and the quantity and thermal performance of the various wall system details.

Kosny, J.; Desjarlais, A.O.; Christian, J.E.

1998-06-01T23:59:59.000Z

270

Reference frame independent quantum key distribution server with telecom tether for on-chip client  

E-Print Network (OSTI)

We demonstrate a client-server quantum key distribution (QKD) scheme, with large resources such as laser and detectors situated at the server-side, which is accessible via telecom-fibre, to a client requiring only an on-chip polarisation rotator, that may be integrated into a handheld device. The detrimental effects of unstable fibre birefringence are overcome by employing the reference frame independent QKD protocol for polarisation qubits in polarisation maintaining fibre, where standard QKD protocols fail, as we show for comparison. This opens the way for quantum enhanced secure communications between companies and members of the general public equipped with handheld mobile devices, via telecom-fibre tethering.

P. Zhang; K. Aungskunsiri; E. Martín-López; J. Wabnig; M. Lobino; R. W. Nock; J. Munns; D. Bonneau; P. Jiang; H. W. Li; A. Laing; J. G. Rarity; A. O. Niskanen; M. G. Thompson; J. L. O'Brien

2013-08-15T23:59:59.000Z

271

Downhole Techniques | Open Energy Information  

Open Energy Info (EERE)

Downhole Techniques Downhole Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Downhole Techniques Details Activities (0) Areas (0) Regions (0) NEPA(7) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Determination of lithology, grain size Stratigraphic/Structural: Thickness and geometry of rock strata, fracture identification Hydrological: Porosity, permeability, water saturation Thermal: Formation temperature with depth Dictionary.png Downhole Techniques: Downhole techniques are measurements collected from a borehole environment which provide information regarding the character of formations and fluids

272

Geophysical Techniques | Open Energy Information  

Open Energy Info (EERE)

Geophysical Techniques Geophysical Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Geophysical Techniques Details Activities (2) Areas (1) Regions (0) NEPA(4) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: may be inferred Stratigraphic/Structural: may be inferred Hydrological: may be inferred Thermal: may be inferred Dictionary.png Geophysical Techniques: Geophysics is the study of the structure and composition of the earth's interior. Other definitions:Wikipedia Reegle Introduction Geophysical techniques measure physical phenomena of the earth such as gravity, magnetism, elastic waves, electrical and electromagnetic waves.

273

Magnetotelluric Techniques | Open Energy Information  

Open Energy Info (EERE)

Magnetotelluric Techniques Magnetotelluric Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Magnetotelluric Techniques Details Activities (0) Areas (0) Regions (0) NEPA(2) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electromagnetic Sounding Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png Magnetotelluric Techniques:

274

Nuclear Maintenance Applications Center: Recommended Practice for Evaluating Interchangeability for National Electric Manufacturing Association Frame Motor Replacement  

Science Conference Proceedings (OSTI)

The National Electric Manufacturers Association (NEMA) has a standardized system for designating electric motors. The NEMA system uses a frame size number and letter designation that describes the mounting dimensions, including foot hole mounting pattern, shaft diameter, shaft height, and other details; however, all design characteristicssuch as overall length, height, conduit box extension, and so onmust be evaluated to ensure proper form, fit, and function. The T-frame motor might be the most highly st...

2010-09-30T23:59:59.000Z

275

TIMING APPARATUS  

DOE Patents (OSTI)

The timing device comprises an escapement wheel and pallet, a spring drive to rotate the escapement wheel to a zero position, means to wind the pretensioned spring proportional to the desired signal time, and a cam mechanism to control an electrical signal switch by energizing the switch when the spring has been wound to the desired position, and deenergizing it when it reaches the zero position. This device produces an accurately timed signal variably witain the control of the operator.

Bennett, A.E.; Geisow, J.C.H.

1956-04-17T23:59:59.000Z

276

The Kinetic Effect on Structural Behavior of Mixed LiMn2O4–LiNi1/3Co1/3Mn1/3O2 Cathode Materials Studied by In Situ Time-resolved X-ray Diffraction Technique  

SciTech Connect

How the structural changes of each active material in mixed cathode systems take place at different charge-discharge rates is quite important in the application of the system in which the mixed cathode materials with different rate capabilities are formed into one composite electrode. Here we report the results of the real time structural change studies of mixed LiMn{sub 2}O{sub 4}-LiNi{sub 1/3}Co{sub 1/3}Mn{sub 1/3}O{sub 2} composite cathode in a Li-ion cell by using in situ synchrotron-based time resolved x-ray diffraction (TR-XRD) technique. The layer structured component in the mixed composite cathode system shows less utilization at fast discharge rate (high power mode) whereas the spinel structured component is fully utilized. This clearly demonstrates that the reduced capacity at fast discharge rate for this system is caused by the less utilization of the layer structured component. The real time monitoring of the structural behavior at various discharge rates is a great tool to design the best ratios of active materials with different rate capabilities in the mixed cathode systems for different applications.

Yoon W. S.; Nam K.; Jang, D.; Chung, K.Y.; Cho, Y.-H.; Choi, S.; Hanson, J.C.; Yang, X.-Q.

2012-02-01T23:59:59.000Z

277

On Traversable Lorentzian Wormholes in the Vacuum Low Energy Effective String Theory in Einstein and Jordan Frames  

E-Print Network (OSTI)

Three new classes (II-IV) of solutions of the vacuum low energy effective string theory in four dimensions are derived. Wormhole solutions are investigated in those solutions including the class I case both in the Einstein and in the Jordan (string) frame. It turns out that, of the eight classes of solutions investigated (four in the Einstein frame and four in the corresponding string frame), massive Lorentzian traversable wormholes exist in five classes. Nontrivial massless limit exists only in class I Einstein frame solution while none at all exists in the string frame. An investigation of test scalar charge motion in the class I solution in the two frames is carried out by using the Plebanski-Sawicki theorem. A curious consequence is that the motion around the extremal zero (Keplerian) mass configuration leads, as a result of scalar-scalar interaction, to a new hypothetical "mass" that confines test scalar charges in bound orbits, but does not interact with neutral test particles.

K. K. Nandi; Yuan-Zhong Zhang

2004-05-10T23:59:59.000Z

278

Weakness of accelerator bounds on electron superluminality without a preferred frame  

E-Print Network (OSTI)

The reference laboratory bounds on superluminality of the electron are obtained from the absence of in-vacuo Cherenkov processes and the determinations of synchrotron radiated power for LEP electrons. It is usually assumed that these analyses establish the validity of a standard special-relativistic description of the electron with accuracy of at least a few parts in $10^{14}$, and in particular this is used to exclude electron superluminality with such an accuracy. We observe that these bounds rely crucially on the availability of a preferred frame. In-vacuo-Cherenkov processes are automatically forbidden in any theory with "deformed Lorentz symmetry", relativistic theories that, while different from Special Relativity, preserve the relativity of inertial frames. Determinations of the synchrotron radiated power can be used to constrain the possibility of Lorentz-symmetry deformation, but provide rather weak bounds, which in particular for electron superluminality we establish to afford us no more constraining power than for an accuracy of a few parts in $10^4$. We argue that this observation can have only a limited role in the ongoing effort of analysis of the anomaly tentatively reported by the OPERA collaboration, but we stress that it could provide a valuable case study for assessing the limitations of "indirect" tests of fundamental laws of physics.

Giovanni Amelino-Camelia; Giulia Gubitosi; Niccoló Loret; Flavio Mercati; Giacomo Rosati

2011-11-03T23:59:59.000Z

279

Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Seismic Techniques Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Seismic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(10) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Seismic Techniques Parent Exploration Technique: Geophysical Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities. Stratigraphic/Structural: Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc. Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation. Thermal: High temperatures and pressure impact the compressional and shear wave velocities.

280

Modeling Techniques | Open Energy Information  

Open Energy Info (EERE)

Modeling Techniques Modeling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Modeling Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Data and Modeling Techniques Exploration Sub Group: Modeling Techniques Parent Exploration Technique: Data and Modeling Techniques Information Provided by Technique Lithology: Rock types, rock chemistry, stratigraphic layer organization Stratigraphic/Structural: Stress fields and magnitudes, location and shape of permeable and non-permeable structures, faults, fracture patterns Hydrological: Visualization and prediction of the flow patterns and characteristics of geothermal fluids, hydrothermal fluid flow characteristics, up-flow patterns

Note: This page contains sample records for the topic "techniques time frame" 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

Tools and Techniques  

Science Conference Proceedings (OSTI)

Oct 19, 2010 ... Troubleshooting and solutions can be developed in real time, improving ones productivity, profitability and customer satisfaction.

282

Tailoring couple therapy techniques to client needs  

E-Print Network (OSTI)

Research illuminating which therapist techniques are used in care-as-usual couple therapy, and under what circumstances, can contribute to a fuller understanding of how therapy works. The overall goal of the present study was to better understand care-as-usual couple therapy by investigating session-by-session techniques and session content to determine how therapists modify them based on the timing of the session and couples? pre-treatment characteristics. A total of 123 heterosexual couples were examined. Therapists frequently used acceptance techniques and discussion of recent or ongoing conflict or problem. Therapists typically used the same levels of techniques and session contents over a course of therapy. In addition, there were relatively few predictors of change in therapy techniques and session content.

Hsueh, Annie C.

2008-12-01T23:59:59.000Z

283

Diagnostics of underwater electrical wire explosion through a time- and space-resolved hard x-ray source  

SciTech Connect

A time- and space-resolved hard x-ray source was developed as a diagnostic tool for imaging underwater exploding wires. A {approx}4 ns width pulse of hard x-rays with energies of up to 100 keV was obtained from the discharge in a vacuum diode consisting of point-shaped tungsten electrodes. To improve contrast and image quality, an external pulsed magnetic field produced by Helmholtz coils was used. High resolution x-ray images of an underwater exploding wire were obtained using a sensitive x-ray CCD detector, and were compared to optical fast framing images. Future developments and application of this diagnostic technique are discussed.

Sheftman, D.; Shafer, D.; Efimov, S.; Gruzinsky, K.; Gleizer, S.; Krasik, Ya. E. [Physics Department, Technion, Haifa 32000 (Israel)

2012-10-15T23:59:59.000Z

284

TIME CALIBRATED OSCILLOSCOPE SWEEP  

DOE Patents (OSTI)

The time calibrator of an electric signal displayed on an oscilloscope is described. In contrast to the conventional technique of using time-calibrated divisions on the face of the oscilloscope, this invention provides means for directly superimposing equal time spaced markers upon a signal displayed upon an oscilloscope. More explicitly, the present invention includes generally a generator for developing a linear saw-tooth voltage and a circuit for combining a high-frequency sinusoidal voltage of a suitable amplitude and frequency with the saw-tooth voltage to produce a resultant sweep deflection voltage having a wave shape which is substantially linear with respect to time between equal time spaced incremental plateau regions occurring once each cycle of the sinusoidal voltage. The foregoing sweep voltage when applied to the horizontal deflection plates in combination with a signal to be observed applied to the vertical deflection plates of a cathode ray oscilloscope produces an image on the viewing screen which is essentially a display of the signal to be observed with respect to time. Intensified spots, or certain other conspicuous indications corresponding to the equal time spaced plateau regions of said sweep voltage, appear superimposed upon said displayed signal, which indications are therefore suitable for direct time calibration purposes.

Owren, H.M.; Johnson, B.M.; Smith, V.L.

1958-04-22T23:59:59.000Z

285

Enhanced video-based target detection using multi-frame correlation filtering  

SciTech Connect

Most existing video-based target detection systems employ state-space models to keep track of an explicit number of individual targets. We introduce a framework for enhancing target detection in video by applying probabilistic models to the soft information in correlation outputs before thresholding. We show how to efficiently compute arrays of posterior target probabilities for every position in the scene conditioned on all current and past frames of a video sequence. These arrays can then be thresholded in the typical manner to yield more reliable target detections. Because the framework avoids the formation of explicit tracks, it is well suited for handling scenes with unknown numbers of targets at unknown positions. Simulation results on forward-looking infrared (FLIR) video sequences show that our proposed framework can significantly reduce the false-alarm rate of a bank of correlation filters while requiring only a marginal increase in computation.

Kerekes, Ryan A [ORNL; Kumar, B. V. K. Vijaya [Carnegie Mellon University

2009-01-01T23:59:59.000Z

286

Modeling laser wakefield accelerator experiments with ultrafast particle-in-cell simulations in boosted frames  

Science Conference Proceedings (OSTI)

The development of new laser systems at the 10 Petawatt range will push laser wakefield accelerators to novel regimes, for which theoretical scalings predict the possibility to accelerate electron bunches up to tens of GeVs in meter-scale plasmas. Numerical simulations will play a crucial role in testing, probing, and optimizing the physical parameters and the setup of future experiments. Fully kinetic simulations are computationally very demanding, pushing the limits of today's supercomputers. In this paper, the recent developments in the OSIRIS framework [R. A. Fonseca et al., Lect. Notes Comput. Sci. 2331, 342 (2002)] are described, in particular the boosted frame scheme, which leads to a dramatic change in the computational resources required to model laser wakefield accelerators. Results from one-to-one modeling of the next generation of laser systems are discussed, including the confirmation of electron bunch acceleration to the energy frontier.

Martins, S. F.; Fonseca, R. A.; Vieira, J.; Silva, L. O. [GoLP/Instituto de Plasmas e Fusao Nuclear-Laboratorio Associado, Instituto Superior Tecnico, Lisbon (Portugal); Lu, W.; Mori, W. B. [University of California Los Angeles, Los Angeles, California 90095 (United States)

2010-05-15T23:59:59.000Z

287

Demonstration of Free-space Reference Frame Independent Quantum Key Distribution  

E-Print Network (OSTI)

Quantum key distribution (QKD) is moving from research laboratories towards applications. As computing becomes more mobile, cashless as well as cardless payment solutions are introduced, and a need arises for incorporating QKD in a mobile device. Handheld devices present a particular challenge as the orientation and the phase of a qubit will depend on device motion. This problem is addressed by the reference frame independent (RFI) QKD scheme. The scheme tolerates an unknown phase between logical states that varies slowly compared to the rate of particle repetition. Here we experimentally demonstrate the feasibility of RFI QKD over a free-space link in a prepare and measure scheme using polarisation encoding. We extend the security analysis of the RFI QKD scheme to be able to deal with uncalibrated devices and a finite number of measurements. Together these advances are an important step towards mass production of handheld QKD devices.

J. Wabnig; D. Bitauld; H. W. Li; A. Laing; J. L. O'Brien; A. O. Niskanen

2013-05-01T23:59:59.000Z

288

Digestion time  

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

Digestion time Digestion time Name: Don Mancosh Location: N/A Country: N/A Date: N/A Question: I have always given the rule of thumb in class that material we eat is with us for about 24 hours before exiting the body. The question arises about the time value of liquids. Getting a big coke prior to a 3 hour drive generally means that there will be a stop along the way. Is there a generalization made about liquids in the body similar to the one for solid food? Replies: A physician would give a better answer, but I hazard this: the only liquids which people consume (deliberately) in significant quantities are water, ethyl alcohol and various oils. Water and alcohol are absorbed on a time scale of seconds to minutes through the mouth, stomach and digestive tract. The oils are huge molecules, so I'd guess like any other greasy food they get absorbed in the upper digestive tract. Some of them, perhaps the longest and most nonpolar, are not absorbed at all --- cf. the old-time remedy of mineral oil for constipation --- so there should be some average time-before-what's-left-is-excreted such as you're looking for, and my (wild) guess is that it would not differ substantially from that for food. You can define an average lifetime in the body for alcohol, since the natural level is zero. Rough guidelines are widespread in the context of drunk driving laws. But this is not really possible for water. One's body is normally full up to the brim with water, and there's no way for the body to distinguish between water molecules recently absorbed and molecules that've been moping around since the Beatles split up. Thus the water entering the toilet bowl after the pit stop is not in general the same water as was in the big coke. If you were to consider for water just the average time between drinking and peeing, it would seem to depend strongly on how well hydrated the body was before the drink, and how much was drunk. During sustained heavy exertion in the sun and dry air one can easily drink a pint of water an hour without peeing at all. On the other hand, if one is willing to drink enough water fast enough, so as to establish a high excess of body water one can pee 8 ounces 15 minutes or less after drinking 8 ounces.

289

Resin infiltration transfer technique  

DOE Patents (OSTI)

A process has been developed for fabricating composite structures using either reaction forming or polymer infiltration and pyrolysis techniques to densify the composite matrix. The matrix and reinforcement materials of choice can include, but are not limited to, silicon carbide (SiC) and zirconium carbide (ZrC). The novel process can be used to fabricate complex, net-shape or near-net shape, high-quality ceramic composites with a crack-free matrix.

Miller, David V. (Pittsburgh, PA); Baranwal, Rita (Glenshaw, PA)

2009-12-08T23:59:59.000Z

290

Technique Subgroupings Spectroscopy  

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

and NSLS-II beamlines according to DOE Technique Scheme and NSLS-II beamlines according to DOE Technique Scheme Technique Subgroupings Spectroscopy 01 - Low Energy Spectroscopy Infrared Photoemission U12IR, U4IR / MET* U5UA, U13 / ESM 02 - Soft X-Ray Spectroscopy Soft X-ray Spectroscopy Tender XAS U4B, U7A, X24A / SST, SSS* X15B, X19A / TES* 03 - Hard X-ray Spectroscopy EXAFS X3A, X3B, X11A, X11B, X18A, X18B, X23A2 / ISS, BMM, QAS*, XAS* 04 - Optics/Calibration/Metrology U3C,X8A/ OFT,MID Scattering 05 X-ray Diffraction X-Ray Powder Diffraction Extreme Conditions Energy Dispersive Micro-Beam Diffraction X7B,X10B,X14A,X16C,X17A / XPD,IXD* X17B2,X17B3,X17C / XPD, TEC*, 4DE* X17B1, X17B2 / NA X13B / MXD* 06 MX, footprinting Protein Crystallography X-ray footprinting X4A, X4C, X6A, X12B, X12C, X25, X29 / FMX, AMX, NYX;

291

Drilling Techniques | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Drilling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Drilling Techniques Details Activities (0) Areas (0) Regions (0) NEPA(20) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Identify lithology and mineralization, provide core samples and rock cuttings Stratigraphic/Structural: Retrieved samples can be used to identify stratigraphy and structural features such as fracture networks or faults Hydrological: -Water samples can be used for geochemical analysis -Fluid pressures can be used to estimate flow rates

292

Techniques for Measuring Residual Stresses  

Science Conference Proceedings (OSTI)

Table 1   Classification of techniques for measuring residual stress...stress A-1 Stress-relaxation techniques using electric

293

Techniques for Measuring Residual Stresses  

Science Conference Proceedings (OSTI)

Table 1   Classification of techniques for measuring residual stress...stress A-1 Stress relaxation techniques using electric

294

Category:Gravity Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques page? For detailed information on Gravity Techniques, click here. Category:Gravity Techniques Add.png Add a new Gravity Techniques Technique Pages in category "Gravity...

295

Iterative Time Reversal with Tunable Convergence  

E-Print Network (OSTI)

We propose and test an iterative technique for improving the temporal focusing of a time reversal mirror. A single amplification parameter is introduced to tune the convergence of the iteration. The tunable iterative technique is validated by tests on an experimental electromagnetic time reversal mirror, as well as on a novel numerical model.

Biniyam Tesfaye Taddese; Thomas M. Antonsen; Edward Ott; Steven M. Anlage

2011-07-07T23:59:59.000Z

296

A Wavelet Transform Technique for Removing Airplane Echoes from ST Radar Signals  

Science Conference Proceedings (OSTI)

This paper presents a new technique based on the wavelet transforms for removing airplane and other transitory echoes in strato–tropospheric (ST) radar measurements. This technique provides a time–frequency display of the time series, which is ...

J-C. Boisse; V. Klaus; J-P. Aubagnac

1999-03-01T23:59:59.000Z

297

Magnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Magnetic Techniques Magnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Magnetic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Magnetic Techniques Parent Exploration Technique: Geophysical Techniques Information Provided by Technique Lithology: Presence of magnetic minerals such as magnetite. Stratigraphic/Structural: Mapping of basement structures, horst blocks, fault systems, fracture zones, dykes and intrusions. Hydrological: The circulation of hydrothermal fluid may impact the magnetic susceptibility of rocks. Thermal: Rocks lose their magnetic properties at the Curie temperature (580° C for magnetite) [1] and, upon cooling, remagnetize in the present magnetic field orientation. The Curie point depth in the subsurface may be determined in a magnetic survey to provide information about hydrothermal activity in a region.

298

Gravity Techniques | Open Energy Information  

Open Energy Info (EERE)

Gravity Techniques Gravity Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Gravity Techniques Details Activities (0) Areas (0) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Gravity Techniques Parent Exploration Technique: Geophysical Techniques Information Provided by Technique Lithology: Distribution of density in the subsurface enables inference of rock type. Stratigraphic/Structural: Delineation of steeply dipping formations, geological discontinuities and faults, intrusions and the deposition of silicates due to hydrothermal activity. Hydrological: Density of sedimentary rocks are strongly influenced by fluid contained within pore space. Dry bulk density refers to the rock with no moisture, while the wet bulk density accounts for water saturation; fluid content may alter density by up to 30%.(Sharma, 1997)

299

Primary and reciprocal space-time experiments, relativistic reciprocity relations and Einstein's train-embankment thought experiment  

E-Print Network (OSTI)

The concepts of primary and reciprocal experiments and base and travelling frames in special relativity are concisely described and applied to several different space-time experiments. These include Einstein's train/embankment thought experiment and a related thought experiment, due to Sartori, involving two trains in parallel motion with different speeds. Spatially separated clocks which are synchronised in their common proper frame are shown to be so in all inertial frames and their spatial separation to be Lorentz invariant. The interpretions given by Einstein and Sartori of their experiments, as well as those given by the present author in previous papers, are shown to be erroneous.

J. H. Field

2008-07-01T23:59:59.000Z

300

Time Brightness  

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

Perlmutter, et al., in Thermonuclear Supernovae, NATO ASI, v. 486 (1997) Perlmutter, et al., in Thermonuclear Supernovae, NATO ASI, v. 486 (1997) Cosmology from . . . Time Brightness ... . . . 50-100 Fields Lunar Calendar Scheduled Follow-Up Imaging at Hubble, Cerro Tololo, WIYN, Isaac Newton Scheduled Follow-Up Spectroscopy at Keck Almost 1000 Galaxies per Field RESULT: ~24 Type Ia supernovae discovered while still brightening, at new moon Berkeley Lab Keck WIYN Cerro Tololo Isaac Newton Hubble Strategy We developed a strategy to guarantee a group of supernova discoveries on a certain date. Just after a new moon, we observe some 50 to 100 high-galactic lattitute fields-each containing almost a thousand high-redshift galaxies-in two nights on the Cerro Tololo 4-meter telescope with Tyson & Bernstein's wide-field camera. We return three weeks later to observe the same

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


301

Cooling System for a Frame-Store PN-CCD Detector for Low Background Application  

E-Print Network (OSTI)

The astroparticle physics experiment CERN Axion Solar Telescope (CAST) aims to detect hypothetical axions or axion-like particles produced in the Sun by the Primakoff process. A Large Hadron Collider (LHC) prototype superconducting dipole magnet provides a 9 T transverse magnetic field for the conversion of axions into detectable X-ray photons. These photons are detected with an X-ray telescope and a novel type of frame-store CCD detector built from radio-pure materials, installed in the optics focal plane. A novel type of cooling system has been designed and built based on krypton-filled cryogenic heat pipes, made out of oxygen-free radiopure copper, and a Stirling cryocooler as cold source. The heat pipes provide an efficient thermal coupling between the cryocooler and the CCD which is kept at stable temperatures between 150 and 230 K within an accuracy of 0.1 K. A graded-Z radiation shield, also serving as a gas cold-trap operated at 120 K, is implemented to reduce the surface contamination of the CCD wind...

Pereira, H; Santos Silva, P; Kuster, M; Lang, P

2012-01-01T23:59:59.000Z

302

Comparison of shell-and-tube with frame-and-plate-type heat exchangers for the MIT research reactor upgrade  

SciTech Connect

This paper discusses a comparison of shell-and-tube with frame-and-plate-type heat exchangers for the proposed upgrade of the Massachusetts Institute of Technology research reactor (MITR). The comparison is based on the following considerations: thermal-hydraulic performance, maintenance, personnel dose rate, and pricing.

Ser, Yorick, Hu, Lin-Wen [Massachusetts Institute of Technology, Cambridge, MA (United States)

1997-12-01T23:59:59.000Z

303

Development of nonlinear analytical model and seismic analyses of a steel frame with self-centering devices and viscoelastic dampers  

Science Conference Proceedings (OSTI)

This paper highlights the role of advanced structural analysis tools on the conception of high-performance earthquake-resistant structural systems. A new steel frame equipped with self-centering devices and viscoelastic dampers is described. A prototype ... Keywords: Damage-free, High-performance, Seismic design, Self-centering, Steel MRF, Viscoelastic dampers

Theodore L. Karavasilis; Tony Blakeborough; Martin S. Williams

2011-06-01T23:59:59.000Z

304

Axial flux permanent magnet motor Csiro: New frame design, analysis, steady state model and comparison to radial flux permanent magnet motor Biel.  

E-Print Network (OSTI)

??This thesis work analyses, models and presents a new frame design for the Csiro electric drive for solar cars. The main objective is to determine… (more)

Al Zaher, R.

2010-01-01T23:59:59.000Z

305

Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Electromagnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Electromagnetic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(5) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electrical Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water

306

Energy-Efficient Speed Scheduling for Real-Time Tasks under Thermal Constraints  

E-Print Network (OSTI)

Energy-Efficient Speed Scheduling for Real-Time Tasks under Thermal Constraints Shengquan Wang. We develop energy-efficient speed scheduling schemes for frame-based real-time tasks under thermal in order to achieve thermal-constrained energy-efficient design. However, this does not work. The existing

Wang, Shengquan

307

Videogrammetric Model Deformation Measurement Technique  

Science Conference Proceedings (OSTI)

The theory, methods, and applications of the videogrammetric model deformation (VMD) measurement technique used at NASA for wind tunnel testing are presented. The VMD technique, based on non-topographic photogrammetry, can determine static and dynamic ...

Burner A. W.; Liu Tianshu

2001-07-01T23:59:59.000Z

308

Diagnostics Techniques of Power Transformer  

Science Conference Proceedings (OSTI)

This paper provides the information on the diagnostics techniques for condition monitoring of power transformer (PT). This paper deals with the practical importance of the transformer diagnostic in the Electrical Engineering field. A review has been ... Keywords: temperature, condition monitoring, diagnostics methods, paper analysis techniques, oil analysis techniques

Piush Verma; Y. R. Sood; Jashandeep Singh

2009-12-01T23:59:59.000Z

309

Identification of circular codes in bacterial genomes and their use in a factorization method for retrieving the reading frames of genes  

Science Conference Proceedings (OSTI)

We developed a statistical method that allows each trinucleotide to be associated with a unique frame among the three possible ones in a (protein coding) gene. An extensive gene study in 175 complete bacterial genomes based on this statistical approach ... Keywords: Bacterial genome, Circular code, Frame

Gabriel Frey; Christian J. Michel

2006-04-01T23:59:59.000Z

310

Techniques in Broadband Interferometry  

SciTech Connect

This is a compilation of my patents issued from 1997 to 2002, generally describing interferometer techniques that modify the coherence properties of broad-bandwidth light and other waves, with applications to Doppler velocimetry, range finding, imaging and spectroscopy. Patents are tedious to read in their original form. In an effort to improve their readability I have embedded the Figures throughout the manuscript, put the Figure captions underneath the Figures, and added section headings. Otherwise I have resisted the temptation to modify the words, though I found many places which could use healthy editing. There may be minor differences with the official versions issued by the US Patent and Trademark Office, particularly in the claims sections. In my shock physics work I measured the velocities of targets impacted by flyer plates by illuminating them with laser light and analyzing the reflected light with an interferometer. Small wavelength changes caused by the target motion (Doppler effect) were converted into fringe shifts by the interferometer. Lasers having long coherence lengths were required for the illumination. While lasers are certainly bright sources, and their collimated beams are convenient to work with, they are expensive. Particularly if one needs to illuminate a wide surface area, then large amounts of power are needed. Orders of magnitude more power per dollar can be obtained from a simple flashlamp, or for that matter, a 50 cent light bulb. Yet these inexpensive sources cannot practically be used for Doppler velocimetry because their coherence length is extremely short, i.e. their bandwidth is much too wide. Hence the motivation for patents 1 & 2 is a method (White Light Velocimetry) for allowing use of these powerful but incoherent lamps for interferometry. The coherence of the illumination is modified by passing it through a preparatory interferometer.

Erskine, D J

2004-01-04T23:59:59.000Z

311

Ion Technique for Identifying Gamma Detector Candidates  

SciTech Connect

Recent demands for radiation detector materials with better energy resolution at room temperature have prompted research efforts on both accelerated material discovery and efficient analysis techniques. Ions can easily deposit their energy in thin films or small crystals and the radiation response can be used to identify material properties relevant to detector performance. In an effort to identify gamma detector candidates using small crystals or film samples, an ion technique is developed to measure relative light yield and energy resolution of candidate materials and to evaluate radiation detection performance. Employing a unique time-of-flight (TOF) telescope, light yield and energy resolution resulting from ion excitation are investigated over a continuous energy region. The efficiency of this ion technique is demonstrated using both organic (plastic scintillator) and inorganic (CaF2:Eu, YAP:Ce, CsI:Tl and BGO) scintillators.

Zhang, Yanwen; Xiang, Xia; Rausch, Julie L.; Zu, Xiaotao T.; Weber, William J.

2009-06-15T23:59:59.000Z

312

The TESLA Time Projection Chamber  

E-Print Network (OSTI)

A large Time Projection Chamber is proposed as part of the tracking system for a detector at the TESLA electron positron linear collider. Different ongoing R&D studies are reviewed, stressing progress made on a new type readout technique based on Micro-Pattern Gas Detectors.

Nabil Ghodbane

2002-12-12T23:59:59.000Z

313

PFT Air Infiltration Measurement Technique | Department of Energy  

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

PFT Air Infiltration Measurement Technique PFT Air Infiltration Measurement Technique PFT Air Infiltration Measurement Technique April 2, 2012 - 3:11pm Addthis The Brookhaven National Laboratory developed the PFT (PerFluorocarbon tracer gas) technique to measure changes over time when determining a building's air-infiltration rate. The Brookhaven National Laboratory developed the PFT (PerFluorocarbon tracer gas) technique to measure changes over time when determining a building's air-infiltration rate. What does this mean for me? You can save 5%-30% on your energy bill by making upgrades following a home energy assessment. A professional energy auditor may use the PFT air infiltration measurement technique to find out where your home has air leaks, though a blower door test is more commonly used.

314

A novel control strategy for dynamic voltage restorer using decoupled multiple reference frame PLL (DMRF-PLL)  

Science Conference Proceedings (OSTI)

This paper presents a new control scheme for dynamic voltage restorer (DVR), which consists of a set of series and shunt converters connected back-to-back (BTB), three series transformers, and a dc capacitor installed on the common dc-link. The DVR is ... Keywords: dc capacitor control, decoupled multiple reference frame phase locked loop (DMRF-PLL), dynamic voltage restorer, harmonic and unbalanced voltage compensation, series converters, shunt converters, voltage sag detection

Lin Xu; Yang Han; M. M. Khan; Lidan Zhou; Gang Yao; Chen Chen; Jumin Pan

2009-02-01T23:59:59.000Z

315

Uncertainty analysis of integrated gasification combined cycle systems based on Frame 7H versus 7F gas turbines  

SciTech Connect

Integrated gasification combined cycle (IGCC) technology is a promising alternative for clean generation of power and coproduction of chemicals from coal and other feedstocks. Advanced concepts for IGCC systems that incorporate state-of-the-art gas turbine systems, however, are not commercially demonstrated. Therefore, there is uncertainty regarding the future commercial-scale performance, emissions, and cost of such technologies. The Frame 7F gas turbine represents current state-of-practice, whereas the Frame 7H is the most recently introduced advanced commercial gas turbine. The objective of this study was to evaluate the risks and potential payoffs of IGCC technology based on different gas turbine combined cycle designs. Models of entrained-flow gasifier-based IGCC systems with Frame 7F (IGCC-7F) and 7H gas turbine combined cycles (IGCC-7H) were developed in ASPEN Plus. An uncertainty analysis was conducted. Gasifier carbon conversion and project cost uncertainty are identified as the most important uncertain inputs with respect to system performance and cost. The uncertainties in the difference of the efficiencies and costs for the two systems are characterized. Despite uncertainty, the IGCC-7H system is robustly preferred to the IGCC-7F system. Advances in gas turbine design will improve the performance, emissions, and cost of IGCC systems. The implications of this study for decision-making regarding technology selection, research planning, and plant operation are discussed. 38 refs., 11 figs., 5 tabs.

Yunhua Zhu; H. Christopher Frey [Pacific Northwest National Laboratory, Richland, WA (United States)

2006-12-15T23:59:59.000Z

316

A Radiographic Technique With Heavy Ion Microbeams  

SciTech Connect

In this work, we introduce a new technique to perform densitometric and multielemental analysis of samples at the same time using a simple detector with heavy ion micro-beams. It consists in the simultaneous analysis of X-rays induced in the sample and in a secondary target arranged behind the specimen. The X-rays originated in the secondary target are attenuated when crossing the specimen producing a radiographic image with a monochromatic source.

Muscio, J. [ECyT, UNSAM, 1650 San Martin, Buenos Aires (Argentina); Somacal, H.; Burlon, A. A.; Debray, M. E.; Valda, A. A. [ECyT, UNSAM, 1650 San Martin, Buenos Aires (Argentina); U.A. Fisica, Laboratorio TANDAR, CNEA, 1650 San Martin, Buenos Aires (Argentina); Kreiner, A. J. [U.A. Fisica, Laboratorio TANDAR, CNEA, 1650 San Martin, Buenos Aires (Argentina); ECyT, UNSAM, 1650 San Martin, Buenos Aires (Argentina); CONICET (Argentina); Kesque, J. M.; Minsky, D. M. [U.A. Fisica, Laboratorio TANDAR, CNEA, 1650 San Martin, Buenos Aires (Argentina)

2007-02-12T23:59:59.000Z

317

Animation of JILA Frequency Comb Spectroscopy Technique  

Science Conference Proceedings (OSTI)

Animation of JILA Frequency Comb Spectroscopy Technique. The new JILA "frequency comb spectroscopy" technique ...

2012-08-17T23:59:59.000Z

318

Hybrid TOA---AOA Location Positioning Techniques in GSM Networks  

Science Conference Proceedings (OSTI)

Positioning algorithms and their implementation in mobile networks are being investigated in the literature due to their importance in location services. Nowadays, the need for superior accuracy has cast attention to hybrid positioning techniques. In ... Keywords: Access delay, Angle of arrivals, GSM procedure, Hybrid techniques, Paging signalling, Time of arrivals

Nikos Deligiannis; Spiros Louvros

2010-07-01T23:59:59.000Z

319

A Characterization of Distribution Techniques for Dynamic Adaptive Grid Hierarchies  

E-Print Network (OSTI)

A Characterization of Distribution Techniques for Dynamic Adaptive Grid Hierarchies Samip Bhavsar for distributed adaptive grid hierarchies that underlie parallel adaptive mesh-refinement (AMR) techniques is the development of a policy driven tool for automated configuration and run-time management of distributed

Parashar, Manish

320

Techniques of Linear Prediction for Systems with Periodic Statistics  

Science Conference Proceedings (OSTI)

Many parameters that measure climatic variability have nonstationary statistics, that is, they depend strongly on the phase of the annual cycle. In this case normal statistical analysis techniques based on time-invariant models are inappropriate. ...

K. Hasselmann; T. P. Barnett

1981-10-01T23:59:59.000Z

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


321

Crosswinds from a Single-Aperture Scintillometer Using Spectral Techniques  

Science Conference Proceedings (OSTI)

In this study, spectral techniques to obtain crosswinds from a single large-aperture scintillometer (SLAS) time series are investigated. The crosswind is defined as the wind component perpendicular to a path. A scintillometer obtains a path-...

Daniëlle van Dinther; Oscar K. Hartogensis; Arnold F. Moene

2013-01-01T23:59:59.000Z

322

Formation Testing Techniques | Open Energy Information  

Open Energy Info (EERE)

Formation Testing Techniques Formation Testing Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Formation Testing Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Formation Testing Techniques Parent Exploration Technique: Downhole Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Formation Testing Techniques: No definition has been provided for this term. Add a Definition References No exploration activities found. Print PDF Retrieved from "http://en.openei.org/w/index.php?title=Formation_Testing_Techniques&oldid=601973" Categories: Downhole Techniques Exploration Techniques

323

Optimal Gabor-Frame-Expansion-Based Intermittent-Clutter-Filtering Method for Radar Wind Profiler  

Science Conference Proceedings (OSTI)

Intermittent clutter signals are frequently observed by radar wind profilers during the seasonal bird migration. A novel statistical filtering algorithm based on a simultaneous time–frequency analysis of the profiler’s raw data was recently ...

Volker Lehmann

2012-02-01T23:59:59.000Z

324

Globally Synchronized Frames for guaranteed Quality-of-Service in shared memory systems  

E-Print Network (OSTI)

Resource contention among concurrent threads on multicore platforms results in greater performance variability of individual threads than traditionally seen with time-multiplexed threads on single-core platforms. This ...

Lee, Jae Wook, Ph. D. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

325

Real time PCR measurement by fluorescence anisotropy  

E-Print Network (OSTI)

Real-time polymerase chain reaction (PCR) is the gold-standard for quantitation in both mutation and gene expression analyses. Already this technique has found valuable clinical application in disease diagnosis and progression ...

Crane, Bryan Lee, 1976-

2005-01-01T23:59:59.000Z

326

Real-time rendering systems in 2010  

Science Conference Proceedings (OSTI)

We present a case for future real-time rendering systems that support non-physically-correct global illumination techniques by using ray tracing visibility algorithms, by integrating scene management with rendering, and by executing on general-purpose ...

William R. Mark; Donald Fussell

2005-07-01T23:59:59.000Z

327

Magazine Coverage of Corn Ethanol between Two Energy Crises: Sourcing and Framing in Corn Ethanol Coverage in Time, Newsweek and The Economist from 1979 to 2007.  

E-Print Network (OSTI)

??With the depletion of traditional energy resources and the increased knowledge of the detrimental effects burning fossil fuels has on the environment, renewable and alternative… (more)

Grabowski, Karen S.

2008-01-01T23:59:59.000Z

328

" A Heterodyne Laser-induced Fluorescence Technique to Determine  

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

A Heterodyne Laser-induced Fluorescence Technique to Determine A Heterodyne Laser-induced Fluorescence Technique to Determine Simultaneously the Bulk and Time Varying Molecule Velocity Distribution." Inventors Ahmed Diallo, Stephane Mazouffre.The method's primary goal is to determine simultaneously the bulk a The method's primary goal is to determine simultaneously the bulk and the time verying part of the molecule velocity distribution using a heterodyne laser induced fluorescence technique. Used in biology, chemistry and plasma physics laser-induced fluorescence is a well known technique to resolve the bulk velocity distribution of probed molecules and atoms in a medium. The novel approach is aimed at determining not only the bulk distribution, but also the time-varying velocity distribution. The two parts of the velocity distribution are key in the characterization of a

329

Category:Data Techniques | Open Energy Information  

Open Energy Info (EERE)

Data Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Data Techniques page? For detailed information on Data Techniques...

330

Category:Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

2 subcategories, out of 2 total. A Active Seismic Techniques 2 pages P Passive Seismic Techniques 2 pages Pages in category "Seismic Techniques" The following 2...

331

Definition: Electrical Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques Jump to: navigation, search Dictionary.png Electrical Techniques Electrical techniques aim to image the electrical resistivity of the subsurface through the measurement...

332

Theoretical and practical aspects of linear and nonlinear model order reduction techniques  

E-Print Network (OSTI)

Model order reduction methods have proved to be an important technique for accelerating time-domain simulation in a variety of computer-aided design tools. In this study we present several new techniques for model reduction ...

Vasilyev, Dmitry Missiuro

2008-01-01T23:59:59.000Z

333

Performance evaluation of transmit diversity techniques in the CDMA 2000 standard  

E-Print Network (OSTI)

This thesis evaluates the performance of two forward-link transmit diversity techniques in the CDMA2000 standard: Space-Time Spreading (STS) and Phase-Sweep Transmit Diversity (PSTD). For each technique, the evaluation ...

Vajapeyam, Murali S. (Murali Srinivasan)

2004-01-01T23:59:59.000Z

334

Twistor inspired techniques in QCD  

Science Conference Proceedings (OSTI)

I present a short review of the new twistor inspired techniques in perturbative QCD, which are the result of Witten's conjecture of a duality between twistors and string theory. I give an introduction to the main two tree-level techniques, the BCFW recursion and the CSW formalism, and show how the idea of using on-shell QCD amplitudes evaluated for complex momenta can lead to efficient techniques to perform analytic computations. Finally, I briefly discuss how these ideas can be applied to loop calculations if they are combined to the generalized unitarity approach.

Duhr, C. [Center for Particle Physics and Phenomenology (CP3), Universite catholique de Louvain, B-1348 Louvain-la-Neuve (Belgium)

2008-08-29T23:59:59.000Z

335

Definition: Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques Techniques Seismic methods provide information regarding the elastic properties of the subsurface through the measurement of the propagation velocity of elastic waves.[1] View on Wikipedia Wikipedia Definition Seismology /saɪzˈmɒlədʒi/ is the scientific study of earthquakes and the propagation of elastic waves through the Earth or through other planet-like bodies. The field also includes studies of earthquake effects, such as tsunamis as well as diverse seismic sources such as volcanic, tectonic, oceanic, atmospheric, and artificial processes (such as explosions). A related field that uses geology to infer information regarding past earthquakes is paleoseismology. A recording of earth motion as a function of time is called a seismogram. A seismologist

336

Energy and equations of motion in a tentative theory of gravity with a privileged reference frame  

E-Print Network (OSTI)

Based on a tentative interpretation of gravity as a pressure force, a scalar theory of gravity was previously investigated. It assumes gravitational contraction (dilation) of space (time) standards. In the static case, the same Newton law as in special relativity was expressed in terms of these distorted local standards, and was found to imply geodesic motion. Here, the formulation of motion is reexamined in the most general situation. A consistent Newton law can still be defined, which accounts for the time variation of the space metric, but it is not compatible with geodesic motion for a time-dependent field. The energy of a test particle is defined: it is constant in the static case. Starting from 'dust', a balance equation is then derived for the energy of matter. If the Newton law is assumed, the field equation of the theory allows to rewrite this as a true conservation equation, including the gravitational energy. The latter contains a Newtonian term, plus the square of the relative rate of the local velocity of gravitation waves (or that of light), the velocity being expressed in terms of absolute standards.

Mayeul Arminjon

2007-09-04T23:59:59.000Z

337

Time reversal signal processing for communication.  

SciTech Connect

Time-reversal is a wave focusing technique that makes use of the reciprocity of wireless propagation channels. It works particularly well in a cluttered environment with associated multipath reflection. This technique uses the multipath in the environment to increase focusing ability. Time-reversal can also be used to null signals, either to reduce unintentional interference or to prevent eavesdropping. It does not require controlled geometric placement of the transmit antennas. Unlike existing techniques it can work without line-of-sight. We have explored the performance of time-reversal focusing in a variety of simulated environments. We have also developed new algorithms to simultaneously focus at a location while nulling at an eavesdropper location. We have experimentally verified these techniques in a realistic cluttered environment.

Young, Derek P.; Jacklin, Neil; Punnoose, Ratish J.; Counsil, David T.

2011-09-01T23:59:59.000Z

338

Time-resolved Hyperspectral Fluorescence Spectroscopy using Frequency Modulated Excitation  

SciTech Connect

An intensity-modulated excitation light source is used together with a micro channel plate intensified CCD (ICCD) detector gated at a slightly different frequency to generate a beat frequency from a fluorescent sample. The addition of a spectrograph produces a hyperspectral time-resolved data product where the resulting beat frequency is detected with a low frame rate camera. Measuring the beat frequency of the spectrum as a function of time allows separation of the excited fluorescence from ambient constant light sources. The excitation and detector repetition rates are varied over a range of discrete frequencies, and the phase shift of the beat wave maps out the emission decay rate(s).

,; Neill, M

2012-07-01T23:59:59.000Z

339

Tools & Techniques for Failure Analysis  

Science Conference Proceedings (OSTI)

Oct 31, 2013 ... Failure Analysis and Prevention: Tools & Techniques for Failure ... As lithium-ion battery technology continues to advance and is adopted in diverse markets, ... fracture origin and an understanding of the fracture event energy.

340

Towards a High Quality Real-Time Graphics Pipeline.  

E-Print Network (OSTI)

??Modern graphics hardware pipelines create photorealistic images with high geometric complexity in real time. The quality is constantly improving and advanced techniques from feature film… (more)

Munkberg, Jacob

2011-01-01T23:59:59.000Z

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


341

Tracking Living Cells as They Differentiate in Real Time  

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

at the ALS, developed a new technique for monitoring protein phosphorylation inside living mammalian cells, enabling them to follow cellular chemical changes in real time,...

342

Well Log Techniques | Open Energy Information  

Open Energy Info (EERE)

Well Log Techniques Well Log Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Well Log Techniques Details Activities (4) Areas (4) Regions (1) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Well Log Techniques Parent Exploration Technique: Downhole Techniques Information Provided by Technique Lithology: depth and thickness of formations; lithology and porosity can be inferred Stratigraphic/Structural: reservoir thickness, reservoir geometry, borehole geometry Hydrological: permeability and fluid composition can be inferred Thermal: direct temperature measurements; thermal conductivity and heat capacity Dictionary.png Well Log Techniques: Well logging is the measurement of formation properties versus depth in a

343

Techniques for multivariate sample design  

SciTech Connect

In this report we consider sampling methods applicable to the multi-product Annual Fuel Oil and Kerosene Sales Report (Form EIA-821) Survey. For years prior to 1989, the purpose of the survey was to produce state-level estimates of total sales volumes for each of five target variables: residential No. 2 distillate, other retail No. 2 distillate, wholesale No. 2 distillate, retail residual, and wholesale residual. For the year 1989, the other retail No. 2 distillate and wholesale No. 2 distillate variables were replaced by a new variable defined to be the maximum of the two. The strata for this variable were crossed with the strata for the residential No. 2 distillate variable, resulting in a single stratified No. 2 distillate variable. Estimation for 1989 focused on the single No. 2 distillate variable and the two residual variables. Sampling accuracy requirements for each product were specified in terms of the coefficients of variation (CVs) for the various estimates based on data taken from recent surveys. The target population for the Form EIA-821 survey includes companies that deliver or sell fuel oil or kerosene to end-users. The Petroleum Product Sales Identification Survey (Form EIA-863) data base and numerous state and commercial lists provide the basis of the sampling frame, which is updated as new data become available. In addition, company/state-level volumes for distillates fuel oil, residual fuel oil, and motor gasoline are added to aid the design and selection process. 30 refs., 50 figs., 10 tabs.

Williamson, M.A.

1990-04-01T23:59:59.000Z

344

Estimating Species Distributions Across Space Through Time and with Features of the Environment  

Science Conference Proceedings (OSTI)

Complete guidance for mastering the tools and techniques of the digital revolution With the digital revolution opening up tremendous opportunities in many fields, there is a growing need for skilled professionals who can develop data-intensive systems and extract information and knowledge from them. This book frames for the first time a new systematic approach for tackling the challenges of data-intensive computing, providing decision makers and technical experts alike with practical tools for dealing with our exploding data collections. Emphasizing data-intensive thinking and interdisciplinary collaboration, The Data Bonanza: Improving Knowledge Discovery in Science, Engineering, and Business examines the essential components of knowledge discovery, surveys many of the current research efforts worldwide, and points to new areas for innovation. Complete with a wealth of examples and DISPEL-based methods demonstrating how to gain more from data in real-world systems, the book: Outlines the concepts and rationale for implementing data-intensive computing in organizations Covers from the ground up problem-solving strategies for data analysis in a data-rich world Introduces techniques for data-intensive engineering using the Data-Intensive Systems Process Engineering Language DISPEL Features in-depth case studies in customer relations, environmental hazards, seismology, and more Showcases successful applications in areas ranging from astronomy and the humanities to transport engineering Includes sample program snippets throughout the text as well as additional materials on a companion website The Data Bonanza is a must-have guide for information strategists, data analysts, and engineers in business, research, and government, and for anyone wishing to be on the cutting edge of data mining, machine learning, databases, distributed systems, or large-scale computing.

Kelling, S. [Cornell Lab of Ornithology; Fink, D. [Cornell Lab of Ornithology; Hochachka, W. [Cornell Lab of Ornithology; Rosenberg, K. [Cornell Lab of Ornithology; Cook, R. [Oak Ridge National Laboratory (ORNL); Damoulas, C. [Department of Computer Science, Cornell University; Silva, C. [Department of Computer Science, Polytechnic Institute of New York; Michener, W. [DataONE, University of New Mexico

2013-01-01T23:59:59.000Z

345

The NPE gas tracer test and the development of on-site inspection techniques  

SciTech Connect

Tracer gases emplaced in or near the detonation cavity of the 1-kiloton NonProliferation Event required 1.5 and 13.5 months for sulfur hexaflouride and helium-3, respectively, to reach the surface of Rainier Mesa from an emplacement depth of 400 meters. The sites that first produced tracer gases are those located in known faults and fractures. Numerical modeling suggests that transport to the surface is accomplished within this time frame through atmospheric pumping along high permeability pathways such as fractures. The difference in travel time between the two tracers is due to differences in gas diffusivity and can also be explained by our numerical modeling.

Carrigan, C.; Heinle, R.; Zucca, J.J.

1995-04-13T23:59:59.000Z

346

Clean Energy and Climate First Principles-How To Frame the Strategic Context?  

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

in State RPSs in State RPSs State-Federal RPS Collaborative Webinar Hosted by Clean Energy States Alliance December 19, 2011 Housekeeping  All participants will be in listen-only mode throughout the broadcast.  You can connect to the audio portion of the webinar using your computer's speakers or a headset. You can also connect by telephone.  You can enter questions for today's event by typing them into the "Question Box" on the webinar console. We will pose your questions, as time allows, following the presentations.  This webinar is being recorded and will be made available after the call on the CESA website at www.cleanenergystates.org/projects/state-federal-rps-collaborative 2  With funding from the Energy Foundation and the US Department

347

Byggmeister Test Home: Analysis and Initial Results of Cold Climate Wood-Framed Home Retrofit  

SciTech Connect

BSC seeks to further the energy efficiency market for New England area retrofit projects by supporting projects that are based on solid building science fundamentals and verified implementation. With the high exposure of energy efficiency and retrofit terminology being used in the general media at this time, it is important to have evidence that measures being proposed will in fact benefit the homeowner through a combination of energy savings, improved durability, and occupant comfort. There are several basic areas of research to which the technical report for these test homes can be expected to contribute. These include the combination of measures that is feasible, affordable and acceptable to homeowners as well as expectations versus results. Two Byggmeister multi-family test homes in Massachusetts are examined with the goal of providing case studies that could be applied to other similar New England homes.

Gates, C.

2013-01-01T23:59:59.000Z

348

Well Testing Techniques | Open Energy Information  

Open Energy Info (EERE)

Well Testing Techniques Well Testing Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Well Testing Techniques Details Activities (0) Areas (0) Regions (0) NEPA(17) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Well Testing Techniques Parent Exploration Technique: Downhole Techniques Information Provided by Technique Lithology: Enable estimation of in-situ reservoir elastic parameters Stratigraphic/Structural: Fracture distribution, formation permeability, and ambient tectonic stresses Hydrological: provides information on permeability, location of permeable zones recharge rates, flow rates, fluid flow direction, hydrologic connections, storativity, reservoir pressures, fluid chemistry, and scaling.

349

Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Ground Electromagnetic Techniques Ground Electromagnetic Techniques (Redirected from Ground Electromagnetic Methods) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Ground Electromagnetic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electromagnetic Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

350

Electromagnetic Sounding Techniques | Open Energy Information  

Open Energy Info (EERE)

Electromagnetic Sounding Techniques Electromagnetic Sounding Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Electromagnetic Sounding Techniques Details Activities (1) Areas (1) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Ground Electromagnetic Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

351

Electromagnetic Sounding Techniques | Open Energy Information  

Open Energy Info (EERE)

Electromagnetic Sounding Techniques Electromagnetic Sounding Techniques (Redirected from Electromagnetic Sounding Methods) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Electromagnetic Sounding Techniques Details Activities (1) Areas (1) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Ground Electromagnetic Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water

352

Remote Sensing Techniques | Open Energy Information  

Open Energy Info (EERE)

Remote Sensing Techniques Remote Sensing Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Remote Sensing Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Remote Sensing Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Remote Sensing Techniques: Remote sensing utilizes satellite and/or airborne based sensors to collect information about a given object or area. Remote sensing data collection methods can be passive or active. Passive sensors (e.g., spectral imagers) detect natural radiation that is emitted or reflected by the object or area

353

Active Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Active Seismic Techniques Active Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Active Seismic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Seismic Techniques Parent Exploration Technique: Seismic Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities. Stratigraphic/Structural: Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc. Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation. Thermal: High temperatures and pressure impact the compressional and shear wave velocities.

354

Electromagnetic Profiling Techniques | Open Energy Information  

Open Energy Info (EERE)

Electromagnetic Profiling Techniques Electromagnetic Profiling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Electromagnetic Profiling Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Ground Electromagnetic Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

355

Borehole Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Borehole Seismic Techniques Borehole Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Borehole Seismic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Borehole Seismic Techniques Parent Exploration Technique: Downhole Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities Stratigraphic/Structural: Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation Thermal: High temperatures and pressure impact the compressional and shear wave velocities

356

Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Ground Electromagnetic Techniques Ground Electromagnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Ground Electromagnetic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electromagnetic Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png

357

Passive Seismic Techniques | Open Energy Information  

Open Energy Info (EERE)

Passive Seismic Techniques Passive Seismic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Passive Seismic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(4) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Seismic Techniques Parent Exploration Technique: Seismic Techniques Information Provided by Technique Lithology: Rock unit density influences elastic wave velocities. Stratigraphic/Structural: Structural geology- faults, folds, grabens, horst blocks, sedimentary layering, discontinuities, etc. Hydrological: Combining compressional and shear wave results can indicate the presence of fluid saturation in the formation. Thermal: High temperatures and pressure impact the compressional and shear wave velocities.

358

Characterization and Modeling of Electrochemical Energy Conversion Systems by Impedance Techniques.  

E-Print Network (OSTI)

??This thesis introduces (i) amendments to basic electrochemical measurement techniques in the time and frequency domain suitable for electrochemical energy conversion systems like fuel cells… (more)

Klotz, Dino

2012-01-01T23:59:59.000Z

359

Artificial Intelligence Techniques for Steam Generator Modelling  

E-Print Network (OSTI)

This paper investigates the use of different Artificial Intelligence methods to predict the values of several continuous variables from a Steam Generator. The objective was to determine how the different artificial intelligence methods performed in making predictions on the given dataset. The artificial intelligence methods evaluated were Neural Networks, Support Vector Machines, and Adaptive Neuro-Fuzzy Inference Systems. The types of neural networks investigated were Multi-Layer Perceptions, and Radial Basis Function. Bayesian and committee techniques were applied to these neural networks. Each of the AI methods considered was simulated in Matlab. The results of the simulations showed that all the AI methods were capable of predicting the Steam Generator data reasonably accurately. However, the Adaptive Neuro-Fuzzy Inference system out performed the other methods in terms of accuracy and ease of implementation, while still achieving a fast execution time as well as a reasonable training time.

Wright, Sarah

2008-01-01T23:59:59.000Z

360

Event Order Abstraction for Parametric Real-Time System Verification  

E-Print Network (OSTI)

We present a new abstraction technique, event order abstraction (EOA), for parametric safety verification of real-time systems in which ``correct orderings of events'' needed for system correctness are maintained by timing ...

Umeno, Shinya

2008-07-28T23:59:59.000Z

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


361

Development of the Passive Cooling Technique in China  

E-Print Network (OSTI)

With more and more energy and environmental issues, the energy-saving and sustainable development of buildings is of utmost concern to the building industry. Passive cooling techniques can optimally utilize natural resources in order to reduce the energy consumption of buildings. At the same time, it can improve the buildings' thermal environment, so that it has gained the attention of many researchers and has been applied in many different zones of China. The author summarizes various passive cooling techniques, analyzes the research methods and simulation tools, and presents the results of a survey on actual applied conditions. We put forward the pivotal factors and the development direction of the technique. Comparing the thermal comfort zone of the passive cooling technique and the mechanical types, the passive cooling technique is found to be more suitable to people.

Zhou, J.; Wu, J.; Zhang, G.; Xu, Y.

2006-01-01T23:59:59.000Z

362

APS 7-BM Beamline: Techniques  

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

Motivation Motivation The major thrust of the 7-BM beamline is the application of synchrotron radiation tools to examine complex fluid flowfields. Two major techniques are applied: radiography and x-ray fluorescence spectroscopy. While optical techniques are often ideally suited to the study of fluid flowfields, there are certain flowfields for which optical diagnostics have significant challenges. These include: Multiphase flows: Visible light interacts strongly with phase boundaries. This leads to strong refraction, scattering, and attenuation of light. These effects hinder quantitative measurements of dense multiphase flowfields. Opaque media. Flows with strong refractive effects. Luminous flames: The strong light emission from sooting flames can hinder certain optical diagnostics.

363

Erasure Techniques in MRD codes  

E-Print Network (OSTI)

This book is organized into six chapters. The first chapter introduces the basic algebraic structures essential to make this book a self contained one. Algebraic linear codes and their basic properties are discussed in chapter two. In chapter three the authors study the basic properties of erasure decoding in maximum rank distance codes. Some decoding techniques about MRD codes are described and discussed in chapter four of this book. Rank distance codes with complementary duals and MRD codes with complementary duals are introduced and their applications are discussed. Chapter five introduces the notion of integer rank distance codes. The final chapter introduces some concatenation techniques.

W. B. Vasantha Kandasamy; Florentin Smarandache; R. Sujatha; R. S. Raja Durai

2012-05-03T23:59:59.000Z

364

An abductive expert system for interpretation of real-time data  

SciTech Connect

This paper describes DINT, a data interpretation expert system which can provide an explanation of the real-time operating state of a substation to its operators. DINT is based on a generalized version of the set covering model for diagnostic problem solving. This abductive reasoning model is an object-based, frame-like knowledge representation paradigm. Test cases illustrate the application of the model to the real-time operation of a substation.

Dabbaghchi, I.; Gursky, R.J. (American Electric Power Service Corp., Columbus, OH (United States))

1993-07-01T23:59:59.000Z

365

Time and Frequency Portal  

Science Conference Proceedings (OSTI)

NIST Home > Time and Frequency Portal. Time and Frequency Portal. Programs and Projects. CODATA values of the fundamental constants ...

2013-06-27T23:59:59.000Z

366

Time Series and Forecasting  

Science Conference Proceedings (OSTI)

Time Series and Forecasting. Leigh, Stefan and Perlman, S. (1991). "An Index for Comovement of Time Sequences With ...

367

Statistical Modeling of Photovoltaic Reliability Using Accelerated Degradation Techniques (Poster)  

DOE Green Energy (OSTI)

We introduce a cutting-edge life-testing technique, accelerated degradation testing (ADT), for PV reliability testing. The ADT technique is a cost-effective and flexible reliability testing method with multiple (MADT) and Step-Stress (SSADT) variants. In an environment with limited resources, including equipment (chambers), test units, and testing time, these techniques can provide statistically rigorous prediction of lifetime and other interesting parameters, such as failure rate, warranty time, mean time to failure, degradation rate, activation energy, acceleration factor, and upper limit level of stress. J-V characterization can be used for degradation data and the generalized Eyring model can be used for the thermal-humidity stress condition. The SSADT model can be constructed based on the cumulative damage model (CEM), which assumes that the remaining test united are failed according to cumulative density function of current stress level regardless of the history on previous stress levels.

Lee, J.; Elmore, R.; Jones, W.

2011-02-01T23:59:59.000Z

368

Technical education and brainstorming technique  

Science Conference Proceedings (OSTI)

The brainstorming technique used for software projects development is presented as a powerful solution for teaching and research activity in the technical domain. Brainstorming was introduced in the technical domain as an efficient method that was developed ... Keywords: alternative education, brainstorming, design patterns, enneagram, resonance, software engineering

Mircea-Florin Vaida

2007-03-01T23:59:59.000Z

369

Analyzing Regression Test Selection Techniques  

Science Conference Proceedings (OSTI)

Abstract¿Regression testing is a necessary but expensive maintenance activity aimed at showing that code has not been adversely affected by changes. Regression test selection techniques reuse tests from an existing test suite to test a modified program. ... Keywords: Software maintenance, regression testing, selective retest, regression test selection.

Gregg Rothermel; Mary Jean Harrold

1996-08-01T23:59:59.000Z

370

Data and Modeling Techniques | Open Energy Information  

Open Energy Info (EERE)

and Modeling Techniques and Modeling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Data and Modeling Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Data and Modeling Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Rock types, rock chemistry, stratigraphic layer organization Stratigraphic/Structural: Stress fields and magnitudes, location and shape of permeable and non-permeable structures, faults, and fracture patterns Hydrological: Visualization and prediction of the flow patterns and characteristics of geothermal fluids, hydrothermal fluid flow characteristics, up-flow patterns

371

Travel Time Estimation Using Floating Car Data  

E-Print Network (OSTI)

This report explores the use of machine learning techniques to accurately predict travel times in city streets and highways using floating car data (location information of user vehicles on a road network). The aim of this report is twofold, first we present a general architecture of solving this problem, then present and evaluate few techniques on real floating car data gathered over a month on a 5 Km highway in New Delhi.

Sevlian, Raffi

2010-01-01T23:59:59.000Z

372

Instrumentation and diagnostic techniques used by Los Alamos National Laboratory in fragmentation experiments in oil shale  

SciTech Connect

Discussed are the instrumentation and diagnostic techniques used to evaluate the explosive fragmentation experiments in oil shale at the Colony and Anvil Points Mines in Colorado. These experiments were conducted to investigate some of the many parameters that control the fragmenting or rubblizing of oil shale in preparation for subsurface retorting. Framing and TV cameras were used to study the size and speed of the ejected shale fragments. Stress and accelerometer gauges provided quantitative data about the explosively induced stress field in the rock. The CORRTEX technique was used to determine the detonation velocity of the explosive and the induced fracture velocity in the oil shale. Postshot measurements included the crater dimensions and rubble size distribution. In addition preshot and postshot geological mapping was done to relate fractures and joints to crater size and shape.

Edwards, C.L.; Adams, T.F.; Dick, R.D.

1981-01-01T23:59:59.000Z

373

Category:Geophysical Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Geophysical Techniques page? For detailed information on Geophysical Techniques as exploration techniques, click here. Category:Geophysical Techniques Add.png Add a new Geophysical Techniques Technique Subcategories This category has the following 4 subcategories, out of 4 total. E [+] Electrical Techniques‎ (2 categories) 5 pages G [×] Gravity Techniques‎ 3 pages M [×] Magnetic Techniques‎ 3 pages S [+] Seismic Techniques‎ (2 categories) 2 pages Pages in category "Geophysical Techniques" The following 5 pages are in this category, out of 5 total. D DC Resistivity Survey (Mise-Á-La-Masse) E Electrical Techniques G Gravity Techniques M Magnetic Techniques

374

Updated Satellite Technique to Forecast Heavy Snow  

Science Conference Proceedings (OSTI)

Certain satellite interpretation techniques have proven quite useful in the heavy snow forecast process. Those considered best are briefly reviewed, and another technique is introduced. This new technique was found to be most valuable in cyclonic ...

Edward C. Johnston

1995-06-01T23:59:59.000Z

375

Flip-chip and backside techniques.  

SciTech Connect

State-of-the-art techniques for failure localization and design modification through bulk silicon are essential for multi-level metallization and new, flip chip packaging methods. The tutorial reviews the transmission of light through silicon, sample preparation, and backside defect localization techniques that are both currently available and under development. The techniques covered include emission microscopy, scanning laser microscope based techniques (electrooptic techniques, LIVA and its derivatives), and other non-IR based tools (FIB, e-beam techniques, etc.).

Bernhard-Hofer, Karoline (Infineon, Regensburg, Germany); Barton, Daniel Lee; Cole, Edward Isaac, Jr.

2010-08-01T23:59:59.000Z

376

Low background techniques in XMASS  

SciTech Connect

The XMASS project aims to detect pp and {sup 7}Be solar neutrinos, neutrino-less double beta decay, and dark matter searches using ultra-pure liquid xenon. The first stage of XMASS project is concentrated on dark matter searches using 800 kg liquid xenon detector which requires low background and low threshold. Several techniques applied to XMASS detector for low background will be presented.

Takeda, Atsushi [Kamioka Observatory, ICRR, University of Tokyo, 456 Higashi-Mozumi, Kamioka-cho, Hida, Gifu, 506-1205 (Japan)

2011-04-27T23:59:59.000Z

377

Operational dose rate visualization techniques  

SciTech Connect

The analysis of the gamma ray dose rate in the vicinity of a radiation source can be greatly aided by the use of recent state-of-the-art visualization techniques. The method involves calculating dose rates at thousands of locations within a complex geometry system. This information is then processed to create contour plots of the dose rate. Additionally, when these contour plots are created, animations can be created that dynamically display the dose rate as the shields or sources are moved.

Schwarz, R.A.; Morford, R.J.; Carter, L.L.; Jones, G.B.; Greenborg, J.

1994-01-01T23:59:59.000Z

378

Real-time static voltage scaling on multiprocessors  

Science Conference Proceedings (OSTI)

We propose a real-time static voltage scaling (RT-SVS) technique called T-L plane transforming, which is an extension of LLREF, an optimal real-time scheduling algorithm for multiprocessor systems. We present two RT-SVS algorithms for different types ... Keywords: energy consumption, multiprocessor systems, real-time scheduling, real-time voltage scaling

Kenji Funaoka; Shinpei Kato; Nobuyuki Yamasaki

2007-11-01T23:59:59.000Z

379

Category:Electrical Techniques | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon » Category:Electrical Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Electrical Techniques page? For detailed information on Electrical Techniques as exploration techniques, click here. Category:Electrical Techniques Add.png Add a new Electrical Techniques Technique Subcategories This category has the following 2 subcategories, out of 2 total. D [+] Direct-Current Resistivity Survey‎ (2 categories) 3 pages E [+] Electromagnetic Techniques‎ (1 categories) 2 pages Pages in category "Electrical Techniques"

380

Definition: Modeling Techniques | Open Energy Information  

Open Energy Info (EERE)

Modeling Techniques Techniques that involve collecting data from one or more sources and developing a comprehensive representation of the data in a model View on...

Note: This page contains sample records for the topic "techniques time frame" 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

Techniques for Debugging Parallel Programs with Flowback Analysis  

E-Print Network (OSTI)

Flowback analysis is a powerful technique for debugging programs. It allows the programmer to examine dynamic dependences in a program's execution history without having to re-execute the program. The goal is to present to the programmer a graphical view of the dynamic program dependences. We are building a system, called PPD, that performs flowback analysis while keeping the execution time overhead low. We also extend the semantics of flowback analysis to parallel programs. This paper describes details of the graphs and algorithms needed to implement efficient flowback analysis for parallel programs. Execution time overhead is kept low by recording only a small amount of trace during a program's execution. We use semantic analysis and a technique called incremental tracing to keep the time and space overhead low. As part of the semantic analysis, PPD uses a static program dependence graph structure that reduces the amount of work done at compile time and takes advantage of the dynamic...

Jong-deok Choi; Barton P. Miller; Robert H.B. Netzer

1991-01-01T23:59:59.000Z

382

Template:ExplorationTechnique | Open Energy Information  

Open Energy Info (EERE)

'ExplorationTechnique' template. To define a new Exploration 'ExplorationTechnique' template. To define a new Exploration Technique, please use the Exploration Technique Form. Parameters Definition - A link to the OpenEI definition of the technique (optional) ExplorationGroup - ExplorationSubGroup - ParentExplorationTechnique - parent technique for relationship tree LithologyInfo - the type of lithology information this technique could provide StratInfo - the type of stratigraphic and/or structural information this technique could provide HydroInfo - the type of hydrogeology information this technique could provide ThermalInfo - the type of temperature information this technique could provide EstimatedCostLowUSD - the estimated value only of the low end of the cost range (units described in CostUnit) EstimatedCostMedianUSD - the estimated value only of the median cost

383

Manufacturing improvement and thermal property characterization of the frame structure of an Ultra-high Throughput Mutational Spectrometer  

E-Print Network (OSTI)

Constant denaturant capillary electrophoresis (CDCE) is a DNA separation technique that allows the detection of mutants at a fraction of 10Ì???. CDCE uses a region of constant temperature and constant denaturant concentration ...

Lin, Jiengju J. (Jiengju James)

2005-01-01T23:59:59.000Z

384

Opening criteria for accelerated paving techniques  

E-Print Network (OSTI)

Fast track paving or accelerated pavement design is the rapid replacement of portland cement concrete pavement, allowing for the reopening to traffic under specific time requirements. The purpose of this research is to develop opening criteria for accelerated paving and implementing these criteria into a set of guidelines for fast track paving. This report is broken into three specific sections; review of practice, an analysis of field and lab research, and finally design guidelines for the opening criteria for accelerated paving techniques. A review of practice was developed to update the reader on the current "state of the art". This review outlines contruction techniques, fast track mix design, pavement design, and joint design. The analysis of field and lab research provides a synopsis of the experimentation used to develop design guidelines for opening criteria. This section includes crack surveys, coring tests, FWD testing, maturity testing, penetration testing and consistency testing. The design guidelines for early opening criteria provides guidelines for use in intersection design. The guideline outlines requirements for design, design of concrete pavement materials, mixture design, construction considerations, and requirements for opening criteria. This document will update the reader on the subject of fast track paving and the methods used to research it. Finally, with a design guidelines the reader will be able to apply the methods of analysis described in the field and lab testing section to create better pavements more efficiently.

Johnson, Jason Leonard

1993-01-01T23:59:59.000Z

385

Special techniques and equipment reduce problems  

Science Conference Proceedings (OSTI)

Novel underbalanced drilling procedures, downhole-adjustable equipment, and a mud easily cleaned from the fractures, helped reduce formation damage and ensured a successful horizontal well in the high-temperature, abnormally pressured Austin chalk in Louisiana. The technique for successfully drilling the lateral in the Austin chalk included taking the smallest influx possible, maintaining as low a back pressure as possible, and balancing the mud gains from the hole with the mud losses to the hole. Other keys to the success of this well included the use of measurement-while-drilling (MWD) with resistivity in real time to pick the top of the formation. In describing the drilling process, the paper discusses the following: intermediate casing point, pilot hole, 8 1/2-inch curve, snubbing, laterals, bit performance, mud properties, underbalanced drilling, high temperature, directional drilling, and well completion, and then gives recommendations for similar wells.

Joseph, R.A. (OXY U.S.A. Inc., Houston, TX (United States))

1995-03-27T23:59:59.000Z

386

Commuting time geometry of ergodic Markov chains  

E-Print Network (OSTI)

We show how to map the states of an ergodic Markov chain to Euclidean space so that the squared distance between states is the expected commuting time. We find a minimax characterization of commuting times, and from this we get monotonicity of commuting times with respect to equilibrium transition rates. All of these results are familiar in the case of time-reversible chains, where techniques of classical electrical theory apply. In presenting these results, we take the opportunity to develop Markov chain theory in a `conformally correct' way

Doyle, Peter G

2011-01-01T23:59:59.000Z

387

Pushover, Response Spectrum and Time History Analyses of Safe Rooms in a Poor Performance Masonry Building  

Science Conference Proceedings (OSTI)

The idea of safe room has been developed for decreasing the earthquake casualties in masonry buildings. The information obtained from the previous ground motions occurring in seismic zones expresses the lack of enough safety of these buildings against earthquakes. For this reason, an attempt has been made to create some safe areas inside the existing masonry buildings, which are called safe rooms. The practical method for making these safe areas is to install some prefabricated steel frames in some parts of the existing structure. These frames do not carry any service loads before an earthquake. However, if a devastating earthquake happens and the load bearing walls of the building are destroyed, some parts of the floors, which are in the safe areas, will fall on the roof of the installed frames and the occupants who have sheltered there will survive. This paper presents the performance of these frames located in a destroying three storey masonry building with favorable conclusions. In fact, the experimental pushover diagram of the safe room located at the ground-floor level of this building is compared with the analytical results and it is concluded that pushover analysis is a good method for seismic performance evaluation of safe rooms. For time history analysis the 1940 El Centro, the 2003 Bam, and the 1990 Manjil earthquake records with the maximum peak accelerations of 0.35g were utilized. Also the design spectrum of Iranian Standard No. 2800-05 for the ground kind 2 is used for response spectrum analysis. The results of time history, response spectrum and pushover analyses show that the strength and displacement capacity of the steel frames are adequate to accommodate the distortions generated by seismic loads and aftershocks properly.

Mazloom, M. [Department of Civil Engineering, Shahid Rajaee University, P.O. Box 16785-163, Tehran (Iran, Islamic Republic of)

2008-07-08T23:59:59.000Z

388

SECURITY TECHNIQUES Chris J Mitchell1  

E-Print Network (OSTI)

SECURITY TECHNIQUES Chris J Mitchell1 Introduction In this paper we consider the range of security security has been exerted. However, the techniques described are of general applicability by a security technique; in doing so we will distinguish between security features and security techniques (or

Mitchell, Chris

389

Learning to search: Functional gradient techniques for imitation learning  

Science Conference Proceedings (OSTI)

Programming robot behavior remains a challenging task. While it is often easy to abstractly define or even demonstrate a desired behavior, designing a controller that embodies the same behavior is difficult, time consuming, and ultimately expensive. ... Keywords: Autonomous navigation, Functional gradient techniques, Grasping, Imitation learning, Nonparametric optimization, Planning, Quadrupedal locomotion, Robotics, Structured prediction, Subgradient methods

Nathan D. Ratliff; David Silver; J. Andrew Bagnell

2009-07-01T23:59:59.000Z

390

CMS Frames View  

Science Conference Proceedings (OSTI)

Your browser doesn't support java1.1 or java is not enabled! PLEASE NOTE: When using this search utility, the "Return to Session" button may be disabled.

391

CMS Search: Left Frame  

Science Conference Proceedings (OSTI)

Your browser doesn't support java1.1 or java is not enabled! PLEASE NOTE: When using this search utility, the "Return to Session" button may be disabled.

392

Framing robot arms control  

Science Conference Proceedings (OSTI)

The development of autonomous, robotic weaponry is progressing rapidly. Many observers agree that banning the initiation of lethal activity by autonomous weapons is a worthy goal. Some disagree with this goal, on the grounds that robots may equal and ... Keywords: Autonomous weapons, Machine ethics, Military robots, Moral machines, Operational morality, Robot arms control

Wendell Wallach; Colin Allen

2013-06-01T23:59:59.000Z

393

Effective Dark Energy Models and Dark Energy Models with Bounce in frames of $F(T)$ Gravity  

E-Print Network (OSTI)

Various cosmological models in frames of $F(T)$ gravity are considered. The general scheme of constructing effective dark energy models with various evolution is presented. It is showed that these models in principle are compatible with $\\Lambda$CDM model. The dynamics of universe governed by $F(T)$ gravity can mimics $\\Lambda$CDM evolution in past but declines from it in a future. We also construct some dark energy models with the "real" (non-effective) equation-of-state parameter $w$ such that $w\\leq-1$. It is showed that in $F(T)$ gravity the Universe filled phantom field not necessarily ends its existence in singularity. There are two possible mechanisms permitting the final singularity. Firstly due to the nonlinear dependence between energy density and $H^{2}$ ($H$ is the Hubble parameter) the universe can expands not so fast as in the general relativity and in fact Little Rip regime take place instead Big Rip. We also considered the models with possible bounce in future. In these models the universe expansion can mimics the dynamics with future singularity but due to bounce in future universe begin contracts.

Artyom V. Astashenok

2013-08-02T23:59:59.000Z

394

LOW-FREQUENCY QUASI-PERIODIC OSCILLATION FROM THE 11 Hz ACCRETING PULSAR IN TERZAN 5: NOT FRAME DRAGGING  

Science Conference Proceedings (OSTI)

We report on six RXTE observations taken during the 2010 outburst of the 11 Hz accreting pulsar IGR J17480-2446 located in the globular cluster Terzan 5. During these observations we find power spectra which resemble those seen in Z-type high-luminosity neutron star low-mass X-ray binaries, with a quasi-periodic oscillation (QPO) in the 35-50 Hz range simultaneous with a kHz QPO and broadband noise. Using well-known frequency-frequency correlations, we identify the 35-50 Hz QPOs as the horizontal branch oscillations, which were previously suggested to be due to Lense-Thirring (LT) precession. As IGR J17480-2446 spins more than an order of magnitude more slowly than any of the other neutron stars where these QPOs were found, this QPO cannot be explained by frame dragging. By extension, this casts doubt on the LT precession model for other low-frequency QPOs in neutron stars and perhaps even black hole systems.

Altamirano, D.; Van der Klis, M.; Wijnands, R. [Astronomical Institute, 'Anton Pannekoek', University of Amsterdam, Science Park 904, 1098XH Amsterdam (Netherlands); Ingram, A. [Department of Physics, University of Durham, South Road, Durham DH1 3LE (United Kingdom); Linares, M.; Homan, J., E-mail: d.altamirano@uva.nl [Massachusetts Institute of Technology, Kavli Institute for Astrophysics and Space Research, Cambridge, MA 02139 (United States)

2012-11-01T23:59:59.000Z

395

Measured Cooling Performance of Two-story Homes in Dallas, Texas; Insulated Concrete Form Versus Frame Construction  

E-Print Network (OSTI)

Four occupied homes near Dallas, Texas were monitored to compare heating and cooling energy use. Two homes were built with typical wood frame construction, the other two with insulated concrete form (ICF) construction. Remote data loggers collected average hourly indoor and outdoor temperature, relative humidity, furnace runtime fraction, total building electrical energy and HVAC energy use. The loggers recorded data from November 1999 through August 2000. Results show that insulated concrete form construction can reduce cooling energy use 17 to 19% in two-story homes in the north Texas climate. Two adjustments to the measured data were made to compensate for differences between the homes: (1) cooling energy use was normalized to remove the impact of miscellaneous energy use that introduces heat into the home (e.g. lights & appliances), and (2) duct leakage differences simulated in a DOE2-based software reduced the measured savings for ICF construction by 4%. Other differences noted between the homes that were not quantified included occupant impacts, exterior wall color (or absorptance) and an attic radiant barrier absent in one of the homes.

Chasar, D.; Moyer, N.; Rudd, A. F.; Parker, D.; Chandra, S.

2002-01-01T23:59:59.000Z

396

Family Financial Security1 Frame Changin’: How Presence of a Child Impacts Provider Selection and Satisfaction in The Insurance Industry  

E-Print Network (OSTI)

Social scientists have long demonstrated that our perceptions of the world are shaped by schemas, a set of beliefs about people, events or situations that we use as guides in our interactions (i.e., Cohen, 1981; Tversky & Kahneman, 1974). Schemas allow us to process information quickly in order to decide whether to accept information and integrate it into our cognitive framework or to reject the information. This process ultimately affect the choices and evaluations people make (Tversky & Kahnehman, 1981; Misra & Beatty, 1990; Schmidt and Hitchon, 1999). As people move through various life stages, key events can modify the lens we use to judge relationships and create new schemas that we use to process incoming information. The following paper will examine a specific subgroup within insurance: people who have children. The majority of this group consists of couples with kids, a segment comprising over 40 % of US households (US Census, 2007). Using primary research data we will show how the transition from having no children to having children constitutes a potential shift in how this group reacts to and interprets insurance information. Understanding this new frame will ultimately have strong implications for how and what to market to this potentially lucrative insurance group.

Joshua Morrill; Toni Gnewuch

2010-01-01T23:59:59.000Z

397

Category:Field Techniques | Open Energy Information  

Open Energy Info (EERE)

Field Techniques Field Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Field Techniques page? For detailed information on Field Techniques as exploration techniques, click here. Category:Field Techniques Add.png Add a new Field Techniques Technique Subcategories This category has the following 2 subcategories, out of 2 total. D [×] Data Collection and Mapping‎ 5 pages F [+] Field Sampling‎ (2 categories) 4 pages Pages in category "Field Techniques" The following 4 pages are in this category, out of 4 total. D Data Collection and Mapping F Field Sampling H Hand-held X-Ray Fluorescence (XRF) P Portable X-Ray Diffraction (XRD) Retrieved from "http://en.openei.org/w/index.php?title=Category:Field_Techniques&oldid=689815"

398

Compiling for time predictability  

Science Conference Proceedings (OSTI)

Within the T-CREST project we work on hardware/software architectures and code-generation strategies for time-predictable embedded and cyber-physical systems. In this paper we present the single-path code generation approach that we plan to explore and ... Keywords: compilers, real-time systems, time predictability, worst-case execution-time analysis

Peter Puschner; Raimund Kirner; Benedikt Huber; Daniel Prokesch

2012-09-01T23:59:59.000Z

399

Certifying execution time  

Science Conference Proceedings (OSTI)

In this paper we present the framework Abstraction-Carrying CodE Platform for Timing validation (ACCEPT), designed for timing analysis of embedded real-time systems using the worst-case execution time (WCET) as the safety parameter. In the context ...

Vítor Rodrigues; João Pedro Pedroso; Mário Florido; Simão Melo de Sousa

2011-05-01T23:59:59.000Z

400

Automated compile-time and run-time techniques to increase usable memory in MMU-less embedded systems  

Science Conference Proceedings (OSTI)

Random access memory (RAM) is tightly-constrained in many embedded systems. This is especially true for the least expensive, lowest-power embedded systems, such as sensor network nodes and portable consumer electronics. The most widely-used sensor network ... Keywords: data compression, embedded system, wireless sensor network

Lan S. Bai; Lei Yang; Robert P. Dick

2006-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "techniques time frame" 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

Evaluating verbose query processing techniques  

E-Print Network (OSTI)

Verbose or long queries are a small but significant part of the query stream in web search, and are common in other applications such as collaborative question answering (CQA). Current search engines perform well with keyword queries but are not, in general, effective for verbose queries. In this paper, we examine query processing techniques which can be applied to verbose queries prior to submission to a search engine in order to improve the search engine’s results. We focus on verbose queries that have sentence-like structure, but are not simple “wh- ” questions, and assume the search engine is a “black box. ” We evaluated the output of two search engines using queries from a CQA service and our results show that, among a broad range of techniques, the most effective approach is to simply reduce the length of the query. This can be achieved effectively by removing “stop structure ” instead of only stop words. We show that the process of learning and removing stop structure from a query can be effectively automated.

Samuel Huston; W. Bruce Croft

2010-01-01T23:59:59.000Z

402

Repositioning of Covered Stents: The Grip Technique  

SciTech Connect

Introduction: Retrieval and repositioning of a stent deployed beyond its intended target region may be a difficult technical challenge. Materials and Methods: A balloon-mounted snare technique, a variant of the coaxial loop snare technique, is described. Results: The technique is described for the repositioning of a covered transjugular intrahepatic portosystemic shunt stent and a covered biliary stent. Conclusion: The balloon-mounted snare technique is a useful technique for retrieval of migrated stents.

Kirby, John Martin, E-mail: johnkirby@ireland.com [McMaster University Medical Center (Canada); Guo Xiaofeng [McGill University (Canada); Midia, Mehran [McMaster University Medical Center (Canada)

2011-06-15T23:59:59.000Z

403

Reasoning with Numeric and Symbolic Time Information  

Science Conference Proceedings (OSTI)

Representing and reasoning about time is fundamental in many applications of Artificial Intelligence as well as of other disciplines in computer science, such as scheduling, planning, computational linguistics, database design and molecular biology. ... Keywords: approximation algorithms, constraint satisfaction techniques, planning, scheduling, temporal reasoning

Malek Mouhoub

2004-03-01T23:59:59.000Z

404

Real-time individualized virtual humans  

Science Conference Proceedings (OSTI)

This tutorial will present the latest techniques to model fast individualized animatable virtual humans for Real-Time applications. As a human is composed of a head and a body, we will analyze how these two parts can be modeled and globally animated ...

Nadia Magnenat-Thalmann; Daniel Thalmann

2008-12-01T23:59:59.000Z

405

Data challenges of time domain astronomy  

Science Conference Proceedings (OSTI)

Astronomy has been at the forefront of the development of the techniques and methodologies of data intensive science for over a decade with large sky surveys and distributed efforts such as the Virtual Observatory. However, it faces a new data deluge ... Keywords: Astronomy, Classification, Time domain, Virtual observatory

Matthew J. Graham; S. G. Djorgovski; Ashish Mahabal; Ciro Donalek; Andrew Drake; Giuseppe Longo

2012-10-01T23:59:59.000Z

406

User customizable real-time fur  

Science Conference Proceedings (OSTI)

Recent advances in real-time fur rendering have enabled the development of more realistic furry characters. In this sketch, we outline a number of advances to the shell and fin based fur rendering technique by Lengyel et al [2001] using the pixel and ...

John Isidoro; Jason L. Mitchell

2002-07-01T23:59:59.000Z

407

High-Throughput Screening Techniques  

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

Throughput Throughput Screening Techniques for Biomass Conversion Stephen R. Decker & Roman Brunecky & Melvin P. Tucker & Michael E. Himmel & Michael J. Selig Published online: 14 October 2009 # US Government 2009 Abstract High-throughput (HTP) screening of biomass or biomass-degrading enzymes, regardless of the desired outcome, is fraught with obstacles and challenges not typically faced in more traditional biotechnology. The enzyme systems are complex and synergistic and the substrate is highly heterogeneous, insoluble, and difficult to dispense. Digestions are often carried out for days at temperatures of 50°C or higher, leading to significant challenges regarding evaporation control in small well volumes. Furthermore, it is often desirable to condition or "pretreat" the biomass at extreme temperatures and/or pH to enhance enzyme digestibility.

408

Blind Source Separation Techniques for  

E-Print Network (OSTI)

Blind Source Separation techniques, based both on Independent Component Analysis and on second order statistics, are presented and compared for extracting partially hidden texts and textures in document images. Barely perceivable features may occur, for instance, in ancient documents previously erased and then re-written (palimpsests), or for transparency or seeping of ink from the reverse side, or from watermarks in the paper. Detecting these features can be of great importance to scholars and historians. In our approach, the document is modeled as the superposition of a number of source patterns, and a simplified linear mixture model is introduced for describing the relationship between these sources and multispectral views of the document itself. The problem of detecting the patterns that are barely perceivable in the visible color image is thus formulated as the one of separating the various patterns in the mixtures. Some examples from an extensive experimentation with real ancient documents are shown and commented.

Detecting Hidden Texts; Anna Tonazzini; Emanuele Salerno; Matteo Mochi; Luigi Bedini

2004-01-01T23:59:59.000Z

409

General Transformations of Space and Time according to Aether Theory  

E-Print Network (OSTI)

Assuming the existence of a preferred aether frame and the anisotropy of the one-way speed of light in platforms different from the aether frame, we derive the space and time transformations relative to bodies moving in any direction of space and not only in the direction of the common x-axis of the co-ordinate systems under consideration. Taking for granted length contraction and clock retardation, we show that the experimental space-time transformations result from measurement distortions due to the fact that the length of the rods and the frequency of the clocks, used for the measure, do not have a constant value as a result of their motion through the aether, and because the standard synchronization procedures are affected by a synchronism discrepancy effect. When the motion of bodies is aligned along the common x-axis, the transformations assume the same mathematical form as the conventional transformations. However, their meaning is quite different because they have been derived on the basis of very different assumptions, and they arise from the measurement distortions mentioned above. Therefore they conceal hidden variables which are the true transformations.

Joseph Levy

2010-03-09T23:59:59.000Z

410

An overview of time-based and condition-based maintenance in industrial application  

Science Conference Proceedings (OSTI)

This paper presents an overview of two maintenance techniques widely discussed in the literature: time-based maintenance (TBM) and condition-based maintenance (CBM). The paper discusses how the TBM and CBM techniques work toward maintenance decision ... Keywords: Condition-based maintenance, Industrial application, Maintenance decision making, Maintenance techniques, Preventive maintenance, Time-based maintenance

Rosmaini Ahmad; Shahrul Kamaruddin

2012-08-01T23:59:59.000Z

411

CMB Observational Techniques and Recent Results  

E-Print Network (OSTI)

The Cosmic Microwave Background (CMB) consists of photons that were last created about 2 months after the Big Bang, and last scattered about 380,000 years after the Big Bang. The spectrum of the CMB is very close to a blackbody at 2.725 K and upper limits on any deviations of the CMB from a blackbody place strong constraints on energy transfer between the CMB and matter at all redshifts less than 2,000,000. The CMB is very nearly isotropic, but a dipole anisotropy of +/-3.346(17) mK shows that the Solar System barycenter is moving at 368+/-2 km/sec relative to the observable Universe. The dipole corresponds to a spherical harmonic index l=1. The higher indices l geq 2 indicate intrinsic inhomogeneities in the Universe that existed at the time of last scattering. While the photons have traveled freely only since the time of last scattering, the inhomogeneities traced by the CMB photons have been in place since the inflationary epoch only 10^{-35} sec after the Big Bang. These intrinsic anisotropies are much smaller in amplitude than the dipole anisotropy, with Delta T leq 100 microK. Electron scattering of the anisotropic radiation field produces an anisotropic linear polarization in the CMB with amplitudes less than 5 microK. Detailed studies of the angular power spectrum of the temperature and linear polarization anisotropies have yielded precise values for many cosmological parameters. This paper will discuss the techniques necessary to measure signals that are 100 million times smaller than the emission from the instrument and briefly describe results from experiments up to WMAP.

E. L. Wright

2003-12-31T23:59:59.000Z

412

Tests of timing properties of silicon photomultipliers  

Science Conference Proceedings (OSTI)

Timing measurements of Silicon Photomultipliers (SiPM) [1] and [2] at the picosecond level were performed at Fermilab. The core timing resolution of the electronic measurement technique is approximately 2 ps. The single photoelectron time resolution (SPTR) was measured for the signals coming from the SiPM's. A SPTR of about one hundred picoseconds was obtained for SiPM's illuminated by laser pulses. The dependence of the SPTR on applied bias voltage and on the wavelength of the light was measured. A simple model is proposed to explain the difference in the SPTR for blue and red light. A time of flight system based on the SiPM's, with quartz Cherenkov radiators, was tested in a proton beam at Fermilab. The time resolution obtained is 35 ps per SiPM. Finally, requirements for the SiPM's temperature and bias voltage stability to maintain the time resolution are discussed.

Ronzhin, A.; Albrow, M.; /Fermilab; Byrum, K.; /Argonne; Demarteau, M.; Los, S.; /Fermilab; May, E.; /Argonne; Ramberg, A.; /Fermilab; Va'vra, J.; /SLAC; Zatserklyaniy, A.; /Puerto Rico U., Mayaguez

2010-03-01T23:59:59.000Z

413

Managing time, part 2  

Science Conference Proceedings (OSTI)

Masterful time management means not just tracking of messages in your personal environment, but managing your coordination network with others.

Peter J. Denning; Ritu Raj

2011-09-01T23:59:59.000Z

414

FREQUENCY AND TIME  

Science Conference Proceedings (OSTI)

... STRATWARM observed and FLARES expected ... observed and PROTON FLARE expected (- - ) STRATWARM ... time of observed solar or geophysical ...

2003-01-30T23:59:59.000Z

415

QuickTime VR  

Science Conference Proceedings (OSTI)

QuickTime VR. Christine Piatko and Sandy Ressler. ... Sandy Ressler's Office. Plant Floor of Black & Decker in Fayetteville NC. ...

416

Statistical techniques for the characterization of partially observed epidemics.  

Science Conference Proceedings (OSTI)

Techniques appear promising to construct and integrate automated detect-and-characterize technique for epidemics - Working off biosurveillance data, and provides information on the particular/ongoing outbreak. Potential use - in crisis management and planning, resource allocation - Parameter estimation capability ideal for providing the input parameters into an agent-based model, Index Cases, Time of Infection, infection rate. Non-communicable diseases are easier than communicable ones - Small anthrax can be characterized well with 7-10 days of data, post-detection; plague takes longer, Large attacks are very easy.

Safta, Cosmin; Ray, Jaideep; Crary, David (Applied Research Associates, Inc, Arlington, VA); Cheng, Karen (Applied Research Associates, Inc, Arlington, VA)

2010-11-01T23:59:59.000Z

417

Timed Property Sequence Chart  

Science Conference Proceedings (OSTI)

Property Sequence Chart (PSC) is a novel scenario-based notation, which has been recently proposed to represent temporal properties of concurrent systems. This language balances expressive power and simplicity of use. However, the current version of ... Keywords: Property Sequence Chart, Real-time specification patterns, Timed Property Sequence Chart, Timing properties

Pengcheng Zhang; Bixin Li; Lars Grunske

2010-03-01T23:59:59.000Z

418

Noncommutative Two Time Physics  

E-Print Network (OSTI)

We present a classical formalism describing two-time physics with Abelian canonical gauge field backgrounds. The formalism can be used as a starting point for the construction of an interacting quantized two-time physics theory in a noncommutative soace-time.

W. Chagas-Filho

2006-04-03T23:59:59.000Z

419

Fuzzy Expert System to Estimate Ignition Timing for Hydrogen Car  

Science Conference Proceedings (OSTI)

This paper presents the application of fuzzy expert system technique as a basis to estimate ignition timing for subsequent tuning of a Toyota Corolla 4 cylinder, 1.8l hydrogen powered car. Ignition timing prediction is a typical problem to which decision ... Keywords: Fuzzy expert system, Hydrogen engine tuning, Hydrogen powered car, Ignition advance, Ignition timing

Tien Ho; Vishy Karri

2008-09-01T23:59:59.000Z

420

Lab Analysis Techniques | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Lab Analysis Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Lab Analysis Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Lab Analysis Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Water rock interaction; Rapid and unambiguous identification of unknown minerals; Bulk and trace element analysis of rocks, minerals, and sediments; Obtain detailed information about rock composition and morphology; Determine detailed information about rock composition and morphology; Cuttings are used to define lithology; Core analysis is done to define lithology

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


421

A technique for creating new visual phenomena  

E-Print Network (OSTI)

This paper outlines a technique for creating new visual phenomena by proposing a systematic method of using existing media in novel manners. The technique involve s the random and purposeful manipulation of person-media ...

Ritter, Donald

1988-01-01T23:59:59.000Z

422

Category:Geochemical Techniques | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon » Category:Geochemical Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Geochemical Techniques page? For detailed information on exploration techniques, click here. Category:Geochemical Techniques Add.png Add a new Geochemical Techniques Technique Subcategories This category has only the following subcategory. G [×] Geochemical Data Analysis‎ 3 pages Pages in category "Geochemical Techniques" This category contains only the following page. G Geochemical Data Analysis Retrieved from "http://en.openei.org/w/index.php?title=Category:Geochemical_Techniques&oldid=689823"

423

Quantum Operation Time Reversal  

E-Print Network (OSTI)

The dynamics of an open quantum system can be described by a quantum operation, a linear, complete positive map of operators. Here, I exhibit a compact expression for the time reversal of a quantum operation, which is closely analogous to the time reversal of a classical Markov transition matrix. Since open quantum dynamics are stochastic, and not, in general, deterministic, the time reversal is not, in general, an inversion of the dynamics. Rather, the system relaxes towards equilibrium in both the forward and reverse time directions. The probability of a quantum trajectory and the conjugate, time reversed trajectory are related by the heat exchanged with the environment.

Crooks, Gavin E

2007-01-01T23:59:59.000Z

424

Quantum Operation Time Reversal  

E-Print Network (OSTI)

The dynamics of an open quantum system can be described by a quantum operation, a linear, complete positive map of operators. Here, I exhibit a compact expression for the time reversal of a quantum operation, which is closely analogous to the time reversal of a classical Markov transition matrix. Since open quantum dynamics are stochastic, and not, in general, deterministic, the time reversal is not, in general, an inversion of the dynamics. Rather, the system relaxes towards equilibrium in both the forward and reverse time directions. The probability of a quantum trajectory and the conjugate, time reversed trajectory are related by the heat exchanged with the environment.

Gavin E. Crooks

2007-06-26T23:59:59.000Z

425

Topics and Techniques in Forensic DNA Analysis  

Science Conference Proceedings (OSTI)

... Topics and Techniques for Forensic DNA Analysis NYC OCME Dept of Forensic Biology ... NIST Human Identity Project Leader (1999-present) ...

2012-04-17T23:59:59.000Z

426

Microscopy Technique Could Help Computer Industry ...  

Science Conference Proceedings (OSTI)

Microscopy Technique Could Help Computer Industry Develop 3-D Components. From NIST Tech Beat: June 25, 2013. ...

2013-06-25T23:59:59.000Z

427

Airborne electromagnetic surveys as a reconnaissance technique...  

Open Energy Info (EERE)

electromagnetic surveys as a reconnaissance technique for geothermal exploration Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Airborne...

428

Picosecond Electric Field CARS; A Diagnostic Technique to Measure the Electric Field Development within Nanosecond Repetitively Pulsed Plasmas.  

E-Print Network (OSTI)

??In this thesis, a novel technique is presented to take measurements of an electric field which develops and changes rapidly in time. The motivation arises… (more)

Goldberg, Benjamin M.

2012-01-01T23:59:59.000Z

429

Photonic Doppler Velocimetry Multiplexing Techniques: Evaluation of Photonic Techniques  

Science Conference Proceedings (OSTI)

This poster reports progress related to photonic technologies. Specifically, the authors developed diagnostic system architecture for a Multiplexed Photonic Doppler Velocimetry (MPDV) that incorporates frequency and time-division multiplexing into existing PDV methodology to provide increased channel count. Current MPDV design increases number of data records per digitizer channel 8x, and also operates as a laser-safe (Class 3a) system. Further, they applied heterodyne interferometry to allow for direction-of-travel determination and enable high-velocity measurements (>10 km/s) via optical downshifting. They also leveraged commercially available, inexpensive and robust components originally developed for telecom applications. Proposed MPDV architectures employ only commercially available, fiber-coupled hardware.

Edward Daykin

2012-05-24T23:59:59.000Z

430

VLF Technique and Science in India  

Science Conference Proceedings (OSTI)

Since IGY period (1957-58), natural and artificially produced Very Low Frequency (VLF) electromagnetic radiations are being recorded at large number of ground stations and on board satellites to study various wave-plasma interactive phenomena. The terrestrial propagation of these VLF radio waves are primarily enabled through the earth ionosphere wave guide (EIWG) system to long horizontal distances around the globe and ducted along the geomagnetic field lines into the conjugate hemisphere through the ionosphere-plasmasphere-magnetosphere routes. The time frequency spectra indicate presence of dispersion and various cut-off frequencies providing several types of received signals like whistlers, chorus, tweeks, hiss, hisslers etc., which can be heard on an earphone with distinguishing audio structures. While the VLF technique has been a very effective tool for studying middle and high latitude phenomena, the importance of various anomalous characteristics over the Indian low latitude stations provide potentially new challenges for their scientific interpretation and modelling. The ducted and non-ducted propagation, low latitude TRIMPI/TLE effects, D-region ionisation perturbations due to solar and stellar x- and {gamma} ray emissions and detecting precursors of seismic activities are a few problems which will gain from low latitude studies. Since the conjugate points of Indian stations lie over the Indian oceanic region, the VLF propagation effects would be relatively noise free to observe rare and new phenomena requiring better SNR to detect such changes. The VLF signals emanating from the active seismic zones would require high sensitivity of the system and suitable network of transmitting and receiving stations. Results obtained on whistlers and related studies from a number of Indian stations covering geomagnetic latitude range between 13-24 deg. N are mentioned and reviewed in the background of theoretical understanding of the lightning return stroke signal elements, VLF propagation through cold plasma, ionospheric wave guide mode, electron precipitation due to cyclotron resonance and production of ionisation in the D-region due to solar/stellar UV/X/{gamma}-rays. Further use of the VLF technique in terms of improving both observational data for real time monitoring/modelling of geophysical phenomena and exploring space weather conditions are considered as part of a future Indian programme.

Chakravarty, S. C. [Member, Governing Body, Indian Centre for Space Physics, Kolkata (India)

2010-10-20T23:59:59.000Z

431

FABRICATION TECHNIQUES FOR REVERSE ELECTRODE COAXIAL GERMANIUM NUCLEAR RADIATION DETECTORS  

E-Print Network (OSTI)

a LiN03-KN03 eutectic molten salt bath held at the diffusionelec- trolysis from a molten salt bath--a method which hasis attacked by the molten salt). FRAME Spot welded Fig. The

Hansen, W.L.

2010-01-01T23:59:59.000Z

432

Real-time SPECT and 2D ultrasound image registration  

Science Conference Proceedings (OSTI)

In this paper we present a technique for fully automatic, real-time 3D SPECT (Single Photon Emitting Computed Tomography) and 2D ultrasound image registration. We use this technique in the context of kidney lesion diagnosis. Our registration algorithm ...

Marek Bucki; Fabrice Chassat; Francisco Galdames; Takeshi Asahi; Daniel Pizarro; Gabriel Lobo

2007-10-01T23:59:59.000Z

433

RISE: a fast-readout imager for exoplanet transit timing  

E-Print Network (OSTI)

By the precise timing of the low amplitude (0.005 - 0.02 magnitude) transits of exoplanets around their parent star it should be possible to infer the presence of other planetary bodies in the system down to Earth-like masses. We describe the design and construction of RISE, a fast-readout frame transfer camera for the Liverpool Telescope designed to carry out this experiment. The results of our commissioning tests are described as well as the data reduction procedure necessary. We present light curves of two objects, showing that the desired timing and photometric accuracy can be obtained providing that autoguiding is used to keep the target on the same detector pixel for the entire (typically 4 hour) observing run.

I. A. Steele; S. D. Bates; N. Gibson; F. Keenan; J. Meaburn; C. J. Mottram; D. Pollacco; I. Todd

2008-09-19T23:59:59.000Z

434

Real-Time Airborne Analysis of Aircraft Data Supporting Operational Hurricane Forecasting  

Science Conference Proceedings (OSTI)

The Hurricane Research Division has developed a technique for real-time airborne analysis of aircraft data from reconnaissance and research flights in tropical cyclones. The technique uses an onboard workstation that analyzes flight-level ...

Joseph S. Griffin; Robert W. Burpee; Frank D. Marks Jr.; James L. Franklin

1992-09-01T23:59:59.000Z

435

Low Energy Buildings: CFD Techniques for Natural Ventilation and Thermal  

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

Low Energy Buildings: CFD Techniques for Natural Ventilation and Thermal Low Energy Buildings: CFD Techniques for Natural Ventilation and Thermal Comfort Prediction Speaker(s): Malcolm Cook Date: February 14, 2013 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Michael Wetter Malcolm's presentation will cover both his research and consultancy activities. This will cover the work he has undertaken during his time spent working with architects on low energy building design, with a particular focus on natural ventilation and passive cooling strategies, and the role computer simulation can play in this design process. Malcolm will talk about the simulation techniques employed, as well as the innovative passive design principles that have led to some of the UK's most energy efficient buildings. In addition to UK building projects, the talk will

436

Electro-optic techniques in electron beam diagnostics  

Science Conference Proceedings (OSTI)

Electron accelerators such as laser wakefield accelerators, linear accelerators driving free electron lasers, or femto-sliced synchrotrons, are capable of producing femtosecond-long electron bunches. Single-shot characterization of the temporal charge profile is crucial for operation, optimization, and application of such accelerators. A variety of electro-optic sampling (EOS) techniques exists for the temporal analysis. In EOS, the field profile from the electron bunch (or the field profile from its coherent radiation) will be transferred onto a laser pulse co-propagating through an electro-optic crystal. This paper will address the most common EOS schemes and will list their advantages and limitations. Strong points that all techniques share are the ultra-short time resolution (tens of femtoseconds) and the single-shot capabilities. Besides introducing the theory behind EOS, data from various research groups is presented for each technique.

van Tilborg, Jeroen; Toth, Csaba; Matlis, Nicholas; Plateau, Guillaume; Leemans, Wim

2011-06-17T23:59:59.000Z

437

Sampling Distribution of the Time between Effectively Independent Samples  

Science Conference Proceedings (OSTI)

The sampling distribution of the estimate of the “time between effectively independent samples,” T0, is investigated using Monte-Carlo techniques. It is found to be asymptotically unbiased and normally distributed. Agreement between empirical ...

Daniel Wilks

1987-03-01T23:59:59.000Z

438

Four-Dimensional Holograms from Time-Lapse Cinematography  

Science Conference Proceedings (OSTI)

New techniques in holography allow standard motion picture film to be converted to holograms that are visible with standard light sources. Time-lapse photographs of clouds have been converted to two types of holograms. One hologram was made from ...

Ronald L. Holle; Mark C. Diamond

1985-09-01T23:59:59.000Z

439

Real-Time Sky-View Factor Calculation and Approximation  

Science Conference Proceedings (OSTI)

Previously, the acquisition of sky-view factor data for climate studies has been time consuming and dependent on postprocessing. However, advances in technology now mean that techniques using fish-eye imagery can be algorithmically processed in ...

L. Chapman; J. E. Thornes

2004-05-01T23:59:59.000Z

440

New Real-Time Quantum Efficiency Measurement System: Preprint  

DOE Green Energy (OSTI)

This paper describes a newly developed technique for measuring the quantum eficiiency in solar cells in real-time using a unique, electronically controlled, full-spectrum light source.

Young, D. L.; Egaas, B.; Pinegar, S.; Stradins, P.

2008-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "techniques time frame" 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

On the Time Times Temperature Bound  

E-Print Network (OSTI)

Recently Hod proposes a lower bound on the relaxation time of a perturbed thermodynamic system. For gravitational systems this bound transforms into a condition on the fundamental quasinormal frequency. We test the bound in some spacetimes whose quasinormal frequencies are calculated exactly, as the three-dimensional BTZ black hole, the D-dimensional de Sitter spacetime, and the D-dimensional Nariai spacetime. We find that for some of these spacetimes their fundamental quasinormal frequencies do not satisfy the bound proposed by Hod.

A. Lopez-Ortega

2010-06-28T23:59:59.000Z

442

CONSTRAINTS ON THE ASSEMBLY AND DYNAMICS OF GALAXIES. I. DETAILED REST-FRAME OPTICAL MORPHOLOGIES ON KILOPARSEC SCALE OF z {approx} 2 STAR-FORMING GALAXIES  

SciTech Connect

We present deep and high-resolution Hubble Space Telescope NIC2 F160W imaging at 1.6 {mu}m of six z {approx} 2 star-forming galaxies with existing near-infrared integral field spectroscopy from SINFONI at the Very Large Telescope. The unique combination of rest-frame optical imaging and nebular emission-line maps provides simultaneous insight into morphologies and dynamical properties. The overall rest-frame optical emission of the galaxies is characterized by shallow profiles in general (Sersic index n < 1), with median effective radii of R{sub e} {approx} 5 kpc. The morphologies are significantly clumpy and irregular, which we quantify through a non-parametric morphological approach, estimating the Gini (G), multiplicity ({Psi}), and M{sub 20} coefficients. The estimated strength of the rest-frame optical emission lines in the F160W bandpass indicates that the observed structure is not dominated by the morphology of line-emitting gas, and must reflect the underlying stellar mass distribution of the galaxies. The sizes and structural parameters in the rest-frame optical continuum and H{alpha} emission reveal no significant differences, suggesting similar global distributions of the ongoing star formation and more evolved stellar population. While no strong correlations are observed between stellar population parameters and morphology within the NIC2/SINFONI sample itself, a consideration of the sample in the context of a broader range of z {approx} 2 galaxy types (K-selected quiescent, active galactic nucleus, and star forming; 24 {mu}m selected dusty, infrared-luminous) indicates that these galaxies probe the high specific star formation rate and low stellar mass surface density part of the massive z {approx} 2 galaxy population, with correspondingly large effective radii, low Sersic indices, low G, and high {Psi} and M{sub 20}. The combined NIC2 and SINFONI data set yields insights of unprecedented detail into the nature of mass accretion at high redshift.

Foerster Schreiber, N. M.; Genzel, R.; Davies, R. [Max-Planck-Institut fuer extraterrestrische Physik, Giessenbachstrasse, D-85748 Garching (Germany); Shapley, A. E. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095-1547 (United States); Erb, D. K.; Bouche, N. [Department of Physics, University of California Santa Barbara, Santa Barbara, California, CA 93106-9530 (United States); Steidel, C. C. [California Institute of Technology, MS 105-24, Pasadena, CA 91125 (United States); Cresci, G. [INAF-Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, I-50125 Firenze (Italy)

2011-04-10T23:59:59.000Z

443

Time varying, multivariate volume data reduction  

SciTech Connect

Large-scale supercomputing is revolutionizing the way science is conducted. A growing challenge, however, is understanding the massive quantities of data produced by large-scale simulations. The data, typically time-varying, multivariate, and volumetric, can occupy from hundreds of gigabytes to several terabytes of storage space. Transferring and processing volume data of such sizes is prohibitively expensive and resource intensive. Although it may not be possible to entirely alleviate these problems, data compression should be considered as part of a viable solution, especially when the primary means of data analysis is volume rendering. In this paper we present our study of multivariate compression, which exploits correlations among related variables, for volume rendering. Two configurations for multidimensional compression based on vector quantization are examined. We emphasize quality reconstruction and interactive rendering, which leads us to a solution using graphics hardware to perform on-the-fly decompression during rendering. In this paper we present a solution which addresses the need for data reduction in large supercomputing environments where data resulting from simulations occupies tremendous amounts of storage. Our solution employs a lossy encoding scheme to acrueve data reduction with several options in terms of rate-distortion behavior. We focus on encoding of multiple variables together, with optional compression in space and time. The compressed volumes can be rendered directly with commodity graphics cards at interactive frame rates and rendering quality similar to that of static volume renderers. Compression results using a multivariate time-varying data set indicate that encoding multiple variables results in acceptable performance in the case of spatial and temporal encoding as compared to independent compression of variables. The relative performance of spatial vs. temporal compression is data dependent, although temporal compression has the advantage of offering smooth animations, while spatial compression can handle volumes of larger dimensions.

Ahrens, James P [Los Alamos National Laboratory; Fout, Nathaniel [UC DAVIS; Ma, Kwan - Liu [UC DAVIS

2010-01-01T23:59:59.000Z

444

What Time is It?  

Science Conference Proceedings (OSTI)

... These are sometimes marketed as "atomic clocks", but ... problems include incorrectly setting your local time zone on the clock, batteries that need ...

2011-01-19T23:59:59.000Z

445

Category:Downhole Techniques | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon » Category:Downhole Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Downhole Techniques page? For detailed information on Downhole Techniques as exploration techniques, click here. Category:Downhole Techniques Add.png Add a new Downhole Techniques Technique Subcategories This category has the following 5 subcategories, out of 5 total. B [×] Borehole Seismic Techniques‎ 2 pages F [×] Formation Testing Techniques‎ O [×] Open-Hole Techniques‎ W [×] Well Log Techniques‎ 17 pages [×] Well Testing Techniques‎ 8 pages

446

Property:ExplorationTechnique | Open Energy Information  

Open Energy Info (EERE)

ExplorationTechnique ExplorationTechnique Jump to: navigation, search Property Name ExplorationTechnique Property Type Page Description The ExplorationTechnique used in the Exploration Activity. Use the form ExplorationTechnique to create new exploration technique pages. Subproperties This property has the following 1 subproperty: A Aeromagnetic Survey At Crump's Hot Springs Area (DOE GTP) Pages using the property "ExplorationTechnique" Showing 25 pages using this property. (previous 25) (next 25) 2 2-M Probe At Alum Area (Kratt, Et Al., 2010) + 2-M Probe Survey + 2-M Probe At Astor Pass Area (Kratt, Et Al., 2010) + 2-M Probe Survey + 2-M Probe At Black Warrior Area (DOE GTP) + 2-M Probe Survey + 2-M Probe At Columbus Salt Marsh Area (Kratt, Et Al., 2010) + 2-M Probe Survey +

447

Comparison of Holdup Measurement Techniques  

Science Conference Proceedings (OSTI)

The measurement of uranium holdup, the residual material left in process equipment such as pipes or ducts, is an integral element of material control and accountability. Not only are the measurements important for accountability, they are also important for criticality safety. The goal in measuring holdup is to quantify the amount of material in the pipes to verify that all material is accounted for (inventory in [inventory out + holdup] = 0) and to ensure that the amount of material heldup is not a criticality risk. There are a number of ways to measure holdup in process equipment; however, this paper will evaluate only two methods (i.e., Holdup Measurement System 4 (HMS-4) and In Situ Object Counting Software (ISOCS)) for specific measurement scenarios. The comparison will use measurements of well-known reference materials in various configurations and will examine the results, uncertainties, repeatability, time required, portability, and cost of each system.

Lousteau, Angela L [ORNL; Stooksbury, John C [ORNL; Cleveland, Steven L [ORNL

2012-01-01T23:59:59.000Z

448

Radar transponder apparatus and signal processing technique  

DOE Patents (OSTI)

An active, phase-coded, time-grating transponder and a synthetic-aperture radar (SAR) and signal processor means, in combination, allow the recognition and location of the transponder (tag) in the SAR image and allow communication of information messages from the transponder to the SAR. The SAR is an illuminating radar having special processing modifications in an image-formation processor to receive an echo from a remote transponder, after the transponder receives and retransmits the SAR illuminations, and to enhance tile transponder`s echo relative to surrounding ground clutter by recognizing special transponder modulations from phase-shifted from the transponder retransmissions. The remote radio-frequency tag also transmits information to the SAR through a single antenna that also serves to receive the SAR illuminations. Unique tag-modulation and SAR signal processing techniques, in combination, allow the detection and precise geographical location of the tag, through the reduction of interfering signals from ground clutter, and allow communication of environmental and status information from said tag to be communicated to said SAR.

Axline, R.M. Jr.; Sloan, G.R.; Spalding, R.E.

1994-12-31T23:59:59.000Z

449

Diagnostic technique for monitoring high temperature plasma dynamics  

Science Conference Proceedings (OSTI)

A preliminary design for the adaptation of a pinhole experiment (PINEX) technique to the monitoring of the dynamics of high temperature plasmas is described. Specifically, this imaging technique uses a thick aperture, an efficient radiation converter, and highly intensified television cameras to provide real-time viewing of radiation sources such as the neutron emissions from d-d and d-t fusion reactions in controlled thermonuclear research devices. The neutron emission strengths, R approx. 5 x 10/sup 15/ n/s, recently achieved at the Tokamak Fusion Test Reactor (TFTR) and the Joint European Torus (JET) should be sufficient for 3 to 6-cm spatial resolution and 10 to 100-ms time resolution using such a system. Such information should be useful for on-line optimization of the plasma and for quantitative evaluation of its performance.

Lumpkin, A.H.; Pappas, D.S.

1987-06-01T23:59:59.000Z

450

Current Techniques for Real-Time Evaluation of Conditional Symmetric Instability  

Science Conference Proceedings (OSTI)

Banded cloudiness and precipitation are sometimes observed in convectively stable environments. These observations are often attributed to conditional symmetric instability (CSI). High-resolution operational instruments in the wind-profiler ...

John S. Snook

1992-09-01T23:59:59.000Z

451

Reducing the Peak Power through Real-Time Scheduling Techniques in Cyber-Physical Energy Systems  

E-Print Network (OSTI)

], large networks of electric cars [4], and automated energy supply and distribution for town and city of electric loads in cyber-physical energy systems. The aim of the proposed approach is to achieve predictability of the activation of electric loads to guarantee an upper bound on the peak electric power

Lipari, Giuseppe

452

A Novel Technique for Improving Hardware Trojan Detection and Reducing Trojan Activation Time  

E-Print Network (OSTI)

transitions in the circuit would be attributed to state bits and it is expected that activities converge or more transitions inside Trojan circuit so that it improves the effectiveness of transient power of nets with low transition rate, we will eliminate hard-to-activate sites in a design. This would result

Plusquellic, James

453

A photon-counting time-of-flight ranging technique developed for the avoidance of range  

E-Print Network (OSTI)

.Sedillo, K. Tyagi, C. C. Wipf, "A quantum key distribution system for optical fiber networks," Proc. SPIE is shown in Fig. 1. Fig. 1. A schematic of the system used to determine length of a reel of optical fiber-of-flight system. We have demonstrated this approach in laboratory-based optical fiber experiments over ~2

Buller, Gerald S.

454

Development of Fast-Time Simulation Techniques to Model Safety Issues in the National Airspace System  

E-Print Network (OSTI)

Development of an agent-based simulation model of airDevelopment of an agent-based simulation model of airDevelopment of an agent-based simulation model of air

2002-01-01T23:59:59.000Z

455

Development of Fast-Time Simulation Techniques to Model Safety Issues in the National Airspace System  

E-Print Network (OSTI)

Fundamental design limitations in MIDAS limit the scalability and practicality of MIDAS as a tool to model human performanceFundamental design limitations in MIDAS limit the scalability and practicality of MIDAS as a tool to model human performance

2002-01-01T23:59:59.000Z

456

Time and Frequency Domain CCD-Based Thermoreflectance Techniques for High-Resolution Transient Thermal Imaging  

E-Print Network (OSTI)

is in the order of 10-4/K. A blue or green light emitting diode (LED) uniformly illuminates the DUT under

457

New technical solution for using the time-of-flight technique to measure neutron spectra  

E-Print Network (OSTI)

-Russian Research Institute of Technical Physics, Snezhinsk, Russia Pilot innovative facility for neutron capture. Conclusion At Budker Institute of Nuclear Physics the first experiments on generation of neutrons for BNCT772 RESULTS OF FIRST EXPERIMENTS ON NEUTRON GENERATION IN THE VITA NEUTRON SOURCE B. F. Bayanov1

Taskaev, Sergey Yur'evich

458

Real-time shading  

Science Conference Proceedings (OSTI)

Real-time procedural shading was once seen as a distant dream. When the first version of this course was offered four years ago, real-time shading was possible, but only with one-of-a-kind hardware or by combining the effects of tens to hundreds of rendering ...

Marc Olano; Kurt Akeley; John C. Hart; Wolfgang Heidrich; Michael McCool; Jason L. Mitchell; Randi Rost

2004-08-01T23:59:59.000Z

459

Semantics, experience and time  

Science Conference Proceedings (OSTI)

The computational hypothesis, with its inherent representationalism, and the dynamical hypothesis, with its apparent absence of representations and its commitment to continuous time, stand at an impasse. It is unclear how the dynamical stance can handle ... Keywords: Computation, Experience, Invariance, Semantics, Situatedness, Time

Stephen E. Robbins

2002-09-01T23:59:59.000Z

460

TIMING OF SHOCK WAVES  

DOE Patents (OSTI)

This patent relates to means for ascertaining the instant of arrival of a shock wave in an exploslve charge and apparatus utilizing this means to coordinate the timing of two operations involving a short lnterval of time. A pair of spaced electrodes are inserted along the line of an explosive train with a voltage applied there-across which is insufficient to cause discharge. When it is desired to initiate operation of a device at the time the explosive shock wave reaches a particular point on the explosive line, the device having an inherent time delay, the electrodes are located ahead of the point such that the ionization of the area between the electrodes caused by the traveling explosive shock wave sends a signal to initiate operation of the device to cause it to operate at the proper time. The operated device may be photographic equipment consisting of an x-ray illuminating tube.

Tuck, J.L.

1955-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "techniques time frame" 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

A New Technique for Troubleshooting Large Capacitive Energy Storage Banks  

DOE Green Energy (OSTI)

The Power Conditioning System (PCS) of the National Ignition Facility (NIF) like many pulse power systems relies on large numbers of inductively isolated high voltage capacitors configured in parallel for energy storage. When an energy storage capacitor fails in such a capacitor bank, there is often little or no external indication showing which capacitor failed. Identifying the failed component can be a time consuming and potentially hazardous operation. Conventional methods using capacitance meters require that each capacitor be disconnected and tested independently. They have developed a new non-invasive technique (i.e. no dismantling of the bank is required) that greatly improves personnel safety as well reducing troubleshooting time.

Fulkerson, S E; Hammon, J

2001-06-05T23:59:59.000Z

462

Display techniques for dynamic network data in transportation GIS  

SciTech Connect

Interest in the characteristics of urban street networks is increasing at the same time new monitoring technologies are delivering detailed traffic data. These emerging streams of data may lead to the dilemma that airborne remote sensing has faced: how to select and access the data, and what meaning is hidden in them? computer-assisted visualization techniques are needed to portray these dynamic data. Of equal importance are controls that let the user filter, symbolize, and replay the data to reveal patterns and trends over varying time spans. We discuss a prototype software system that addresses these requirements.

Ganter, J.H.; Cashwell, J.W.

1994-05-01T23:59:59.000Z

463

Fundamentals and Techniques of Nonimaging  

DOE Green Energy (OSTI)

This is the final report describing a long term basic research program in nonimaging optics that has led to major advances in important areas, including solar energy, fiber optics, illumination techniques, light detectors, and a great many other applications. The term ''nonimaging optics'' refers to the optics of extended sources in systems for which image forming is not important, but effective and efficient collection, concentration, transport, and distribution of light energy is. Although some of the most widely known developments of the early concepts have been in the field of solar energy, a broad variety of other uses have emerged. Most important, under the auspices of this program in fundamental research in nonimaging optics established at the University of Chicago with support from the Office of Basic Energy Sciences at the Department of Energy, the field has become very dynamic, with new ideas and concepts continuing to develop, while applications of the early concepts continue to be pursued. While the subject began as part of classical geometrical optics, it has been extended subsequently to the wave optics domain. Particularly relevant to potential new research directions are recent developments in the formalism of statistical and wave optics, which may be important in understanding energy transport on the nanoscale. Nonimaging optics permits the design of optical systems that achieve the maximum possible concentration allowed by physical conservation laws. The earliest designs were constructed by optimizing the collection of the extreme rays from a source to the desired target: the so-called ''edge-ray'' principle. Later, new concentrator types were generated by placing reflectors along the flow lines of the ''vector flux'' emanating from lambertian emitters in various geometries. A few years ago, a new development occurred with the discovery that making the design edge-ray a functional of some other system parameter permits the construction of whole new classes of devices with greatly expanded capabilities compared to conventional approaches. These ''tailored edge-ray'' designs have dramatically broadened the range of geometries in which nonimaging optics can provide a significant performance improvement. Considerable progress continues to be made in furthering the incorporation of nonimaging secondaries into practical high concentration and ultra-high concentration solar collector systems. In parallel with the continuing development of nonimaging geometrical optics, our group has been working to develop an understanding of certain fundamental physical optics concepts in the same context. In particular, our study of the behavior of classical radiance in nonimaging systems, has revealed some fundamentally important new understandings that we have pursued both theoretically and experimentally. The field is still relatively new and is rapidly gaining widespread recognition because it fuels many industrial applications. Because of this, during the final years of the project, our group at Chicago has been working more closely with a team of industrial scientists from Science Applications International Corporation (SAIC) at first informally, and later more formally, beginning in 1998, under a formal program initiated by the Department of Energy and incrementally funded through this existing grant. This collaboration has been very fruitful and has led to new conceptual breakthroughs which have provided the foundation for further exciting growth. Many of these concepts are described in some detail in the report.

O'Gallagher, J. J.; Winston, R.

2003-07-10T23:59:59.000Z

464

Toward real-time quantum imaging with a single pixel camera  

E-Print Network (OSTI)

We present a workbench for the study of real-time quantum imaging by measuring the frame-by-frame quantum noise reduction of multi-spatial-mode twin beams generated by four wave mixing in Rb vapor. Exploiting the multiple spatial modes of this squeezed light source, we utilize spatial light modulators to selectively pass macropixels of quantum correlated modes from each of the twin beams to a high quantum efficiency balanced detector. In low-light-level imaging applications, the ability to measure the quantum correlations between individual spatial modes and macropixels of spatial modes with a single pixel camera will facilitate compressive quantum imaging with sensitivity below the photon shot noise limit.

Lawrie, B J

2013-01-01T23:59:59.000Z

465

Toward real-time quantum imaging with a single pixel camera  

E-Print Network (OSTI)

We present a workbench for the study of real-time quantum imaging by measuring the frame-by-frame quantum noise reduction of multi-spatial-mode twin beams generated by four wave mixing in Rb vapor. Exploiting the multiple spatial modes of this squeezed light source, we utilize spatial light modulators to selectively pass macropixels of quantum correlated modes from each of the twin beams to a high quantum efficiency balanced detector. In low-light-level imaging applications, the ability to measure the quantum correlations between individual spatial modes and macropixels of spatial modes with a single pixel camera will facilitate compressive quantum imaging with sensitivity below the photon shot noise limit.

B. J. Lawrie; R. C. Pooser

2013-03-15T23:59:59.000Z

466

Toward Real-time quantum imaging with a single pixel camera  

Science Conference Proceedings (OSTI)

We present a workbench for the study of real-time quantum imaging by measuring the frame-by-frame quantum noise reduction of multi-spatial-mode twin beams generated by four wave mixing in Rb vapor. Exploiting the multiple spatial modes of this squeezed light source, we utilize spatial light modulators to selectively transmit macropixels of quantum correlated modes from each of the twin beams to a high quantum efficiency balanced detector. In low-light-level imaging applications, the ability to measure the quantum correlations between individual spatial modes and macropixels of spatial modes with a single pixel camera will facilitate compressive quantum imaging with sensitivity below the photon shot noise limit.

Lawrie, Benjamin J [ORNL; Pooser, Raphael C [ORNL

2013-01-01T23:59:59.000Z

467

Technique for rapid establishment of American lotus in remediation efforts  

Science Conference Proceedings (OSTI)

A technique for increasing the establishment rate of American lotus (Nelumbo lutea) and simplifying planting was developed as part of a pond remediation project. Lotus propagation techniques typically require scarification of the seed, germination in heated water, and planting in nursery containers. Then mature (~ 1 yr) nursery-grown stock is transferred to planting site or scarified seed are broadcast applied. Mature plants should grow more quickly, but can be sensitive to handling, require more time to plant, and cost more. Scarified seeds are easier to plant and inexpensive, but have a lag time in growth, can fail to germinate, and can be difficult to site precisely. We developed an intermediate technique using small burlap bags that makes planting easier, provides greater germination success, and avoids lag time in growth. Data on survival and growth from experiments using mature stock, scarified seeds, and bag lotus demonstrate that bag lotus grow rapidly in a variety of conditions, have a high survival rate, can be processed and planted easily and quickly, and are very suitable for a variety of remediation projects

Ryon, Michael G [ORNL; Fortner, Allison M [ORNL; Goins, Kenneth N [ORNL; Jett, Robert T [ORNL; McCracken, Kitty [ORNL; Morris, Gail Wright [ORNL; Riazzi, Adam [Lincoln County HS, Hamlin WV; Roy, W Kelly [ORNL

2013-01-01T23:59:59.000Z

468

Grid History: A Geostationary Satellite Technique for Estimating Daily Rainfall in the Tropics  

Science Conference Proceedings (OSTI)

A new technique is described for estimating daily rainfall by means of visible and infrared geostationary satellite imagery. It is designed for the tropics and warm-season midlatitudes. Because it operates on a grid of points and measures time ...

David W. Martin; Michael R. Howland

1986-02-01T23:59:59.000Z

469

A Technique to Measure Trends in the Frequency of Discrete Random Events  

Science Conference Proceedings (OSTI)

Time series of extreme meteorological and hydrological events frequently present problems with the use of traditional parametric statistical techniques. These difficulties arise from the frequent use of count data, the presence of zero values, ...

Barry D. Keim; James F. Cruise

1998-05-01T23:59:59.000Z

470

Base-state Substitution: An Idealized Modeling Technique for Approximating Environmental Variability  

Science Conference Proceedings (OSTI)

Base-state substitution (BSS) is a novel modeling technique for approximating environmental heterogeneity in idealized simulations. After a certain amount of model run time, base-state substitution replaces the original horizontally homogeneous ...

Casey E. Letkewicz; Adam J. French; Matthew D. Parker

471

A Multi-Index GEM Technique and Its Application to the Southwestern Japan/East Sea  

Science Conference Proceedings (OSTI)

This paper demonstrates a new gravest empirical mode (GEM) technique that constructs multi-index lookup tables of temperature (T) and specific volume anomalies (?) using historical hydrocasts as a function of three indices: round-trip travel time ...

Jae-Hun Park; D. Randolph Watts; Karen L. Tracey; Douglas A. Mitchell

2005-08-01T23:59:59.000Z

472

A technique to measure turbulent free convective heat transfer in a vertical tall cavity.  

E-Print Network (OSTI)

??A time-average technique was developed to measure the unsteady and turbulent free convection heat transfer in tall vertical enclosure using a Mach-Zehnder interferometer. The method… (more)

Poulad, Mohammad Ebrahim

2009-01-01T23:59:59.000Z

473

Base-State Substitution: An Idealized Modeling Technique for Approximating Environmental Variability  

Science Conference Proceedings (OSTI)

Base-state substitution (BSS) is a novel modeling technique for approximating environmental heterogeneity in idealized simulations. After a certain amount of model run time, base-state substitution replaces the original horizontally homogeneous ...

Casey E. Letkewicz; Adam J. French; Matthew D. Parker

2013-09-01T23:59:59.000Z

474

Using supply chain management techniques to make wind plant and energy storage operation more profitable  

E-Print Network (OSTI)

Our research demonstrates that supply chain management techniques can improve the incremental gross profits of wind plant and storage operations by up to five times. Using Monte-Carlo simulation we create and test scenarios ...

Saran, Prashant

2009-01-01T23:59:59.000Z

475

Application of Continuous Dynamic Grid Adaption Techniques to Meteorological Modeling. Part I: Basic Formulation and Accuracy  

Science Conference Proceedings (OSTI)

The continuous dynamic grid adaption (CDGA) technique developed in astrophysics and aeronautics is applied, to our knowledge, for the first time to meteorological modeling. The aim of CDGA is to improve the accuracy of numerical solutions of ...

Gary S. Dietachmayer; Kelvin K. Droegemeier

1992-08-01T23:59:59.000Z

476

Applied change of mean detection techniques for HVAC fault detection and diagnosis and power monitoring  

E-Print Network (OSTI)

A signal processing technique, the detection of abrupt changes in a time-series signal, is implemented with two different applications related to energy use in buildings. The first application is a signal pre-processor for ...

Hill, Roger Owen

1995-01-01T23:59:59.000Z

477

Digital time delay  

DOE Patents (OSTI)

Method and apparatus are provided for generating an output pulse following a trigger pulse at a time delay interval preset with a resolution which is high relative to a low resolution available from supplied clock pulses. A first lumped constant delay provides a first output signal at predetermined interpolation intervals corresponding to the desired high resolution time interval. Latching circuits latch the high resolution data to form a first synchronizing data set. A selected time interval has been preset to internal counters and corrected for circuit propagation delay times having the same order of magnitude as the desired high resolution. Internal system clock pulses count down the counters to generate an internal pulse delayed by an internal which is functionally related to the preset time interval. A second LCD corrects the internal signal with the high resolution time delay. A second internal pulse is then applied to a third LCD to generate a second set of synchronizing data which is complementary with the first set of synchronizing data for presentation to logic circuits. The logic circuits further delay the internal output signal with the internal pulses. The final delayed output signal thereafter enables the output pulse generator to produce the desired output pulse at the preset time delay interval following input of the trigger pulse.

Martin, A.D.

1986-05-09T23:59:59.000Z

478

Environment Induced Time Arrow  

E-Print Network (OSTI)

The spread of the time arrows from the environment to an observed subsystem is followed within a harmonic model. A similarity is pointed out between irreversibility and a phase with spontaneously broken symmetry. The causal structure of interaction might be lost in the irreversible case, as well. The Closed Time Path formalism is developed for classical systems and shown to handle the time arrow problem in a clear and flexible manner. The quantum case is considered, as well, and the common origin of irreversibility and decoherence is pointed out.

Janos Polonyi

2012-06-25T23:59:59.000Z

479

VARIABLE TIME DELAY MEANS  

DOE Patents (OSTI)

An electrically variable time delay line is described which may be readily controlled simuitaneously with variable impedance matching means coupied thereto such that reflections are prevented. Broadly, the delay line includes a signal winding about a magnetic core whose permeability is electrically variable. Inasmuch as the inductance of the line varies directly with the permeability, the time delay and characteristic impedance of the line both vary as the square root of the permeability. Consequently, impedance matching means may be varied similariy and simultaneously w:th the electrically variable permeability to match the line impedance over the entire range of time delay whereby reflections are prevented.

Clemensen, R.E.

1959-11-01T23:59:59.000Z

480

Plant monitoring techniques and second generation designs  

SciTech Connect

Chemical and instrumental monitoring techniques suitable for geothermal use are described in a manner to relate them to plant operational problems and downtime avoidance. The use of these techniques permits the detection of scaling, the onset of scaling, corrosion loss, current corrosion rates and incipient heat exchanger failure. Conceptual advances are noted which simplify the research techniques to approaches that should be usable even in some low-capital well-head type power plants. 10 refs., 8 figs.

Kindle, C.H.; Shannon, D.W.; Robertus, R.J.; Pierce, D.D.; Sullivan, R.G.

1985-03-01T23:59:59.000Z