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Note: This page contains sample records for the topic "tp4 range distance" from the National Library of EnergyBeta (NLEBeta).
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1

Theoretical Antineutrino Detection, Direction and Ranging at Long Distances  

E-Print Network (OSTI)

In this paper we introduce the concept of what we call "NUDAR" (NeUtrino Direction and Ranging), making the point that measurements of the observed energy and direction vectors can be employed to passively deduce the exact three-dimensional location and thermal power of geophysical and anthropogenic neutrino sources from even a single detector. We present the most precise background estimates to date, all handled in full three dimensions, as functions of depth and geographical location. For the present calculations, we consider a hypothetical 138 kiloton detector which can be transported to an ocean site and deployed to an operational depth. We present a Bayesian estimation framework to incorporate any a priori knowledge of the reactor that we are trying to detect, as well as the estimated uncertainty in the background and the oscillation parameters. Most importantly, we fully employ the knowledge of the reactor spectrum and the distance-dependent effects of neutrino oscillations on such spectra. The latter, in particular, makes possible determination of range from one location, given adequate signal statistics. Further, we explore the rich potential of improving detection with even modest improvements in individual neutrino direction determination. We conclude that a 300 MWth reactor can indeed be geolocated, and its operating power estimated with one or two detectors in the hundred kiloton class at ranges out to a few hundred kilometers. We note that such detectors would have natural and non-interfering utility for scientific studies of geo-neutrinos, neutrino oscillations, and astrophysical neutrinos. This motivates the development of cost effective methods of constructing and deploying such next generation detectors.

Glenn R. Jocher; Daniel A. Bondy; Brian M. Dobbs; Stephen T. Dye; James A. Georges III; John G. Learned; Christopher L. Mulliss; Shawn Usman

2013-07-09T23:59:59.000Z

2

Line-Based Object Recognition using Hausdorff Distance: From Range Images to Molecular Secondary Structure  

SciTech Connect

Object recognition algorithms are fundamental tools in automatic matching of geometric shapes within a background scene. Many approaches have been proposed in the past to solve the object recognition problem. Two of the key aspects that distinguish them in terms of their practical usability are: (i) the type of input model description and (ii) the comparison criteria used. In this paper we introduce a novel scheme for 3D object recognition based on line segment representation of the input shapes and comparison using the Hausdor distance. This choice of model representation provides the flexibility to apply the scheme in different application areas. We define several variants of the Hausdor distance to compare the models within the framework of well defined metric spaces. We present a matching algorithm that efficiently finds a pattern in a 3D scene. The algorithm approximates a minimization procedure of the Hausdor distance. The output error due to the approximation is guaranteed to be within a known constant bound. Practical results are presented for two classes of objects: (i) polyhedral shapes extracted from segmented range images and (ii) secondary structures of large molecules. In both cases the use of our approximate algorithm allows to match correctly the pattern in the background while achieving the efficiency necessary for practical use of the scheme. In particular the performance is improved substantially with minor degradation of the quality of the matching.

Guerra, C; Pascucci, V

2004-12-13T23:59:59.000Z

3

Extension of the Focusable Mass Range in Distance-of-Flight Mass Spectrometry with Multiple Detectors  

SciTech Connect

Since the underlying theory of Distance-of-Flight Mass Spectrometry (DOFMS) was reported in 2007,[1] laboratory results[2, 3] have proven its practical viability. However, these previous implementations of DOFMS considered ion detection only over narrow DOF-detection windows, with 25-mm being the greatest detection length explored. These small mass windows cannot be used to evaluate how DOFMS focusing performs over greater DOF detection lengths and mass ranges. In the present study, we expand on previous studies by placing two spatially selective ion detectors along the detection plane of the DOFMS instrument. Ion signals are simultaneously collected from both DOF detectors in order to simulate DOFMS performance with a longer spatially selective ion detector.

Gundlach-Graham, Alexander W.; Dennis, Elise; Ray, Steven J.; Enke, Christie G.; Carado, Anthony J.; Barinaga, Charles J.; Koppenaal, David W.; Hieftje, Gary M.

2012-11-15T23:59:59.000Z

4

Distance in architecture  

E-Print Network (OSTI)

The document which follows represents an exploration of distance and its connection to architecture. This exploration is threefold. On one level it regards distance as an ontological question, researching for precedent ...

Criparacos, George C

1987-01-01T23:59:59.000Z

5

Optimal distance separating halfspace  

E-Print Network (OSTI)

Plastria & Carrizosa / Optimal distance separating halfspace. 2. 1 Gauge Distance to a Hyperplane. Let ? be a gauge on Rd with unit ball B, i.e. B is a compact ...

6

Globular Cluster Distance Determinations  

E-Print Network (OSTI)

The present status of the distance scale to Galactic globular clusters is reviewed. Six distance determination techniques which are deemed to be most reliable are discussed in depth. These different techniques are used to calibrate the absolute magnitude of the RR Lyrae stars. The various calibrations fall into three groups. Main sequence fitting using Hipparcos parallaxes, theoretical HB models and the RR Lyrae in the LMC all favor a bright calibration, implying a `long' globular cluster distance scale. White dwarf fitting and the astrometric distances yield a somewhat fainter RR Lyrae calibration, while the statistical parallax solution yields faint RR Lyrae stars implying a `short' distance scale to globular clusters. Various secondary distance indicators discussed all favor the long distance scale. The `long' and `short' distance scales differ by (0.31+/-0.16) mag. Averaging together all of the different distance determinations yields Mv(RR) = (0.23+/-0.04)([Fe/H] + 1.6) + (0.56+/-0.12) mag.

Brian Chaboyer

1998-08-19T23:59:59.000Z

7

RADIO RANGING DEVICE  

DOE Patents (OSTI)

A description is given of a super-regenerative oscillator ranging device provided with radiating and receiving means and being capable of indicating the occurrence of that distance between itself and a reflecting object which so phases the received echo of energy of a preceding emitted oscillation that the intervals between oscillations become uniform.

Bogle, R.W.

1960-11-22T23:59:59.000Z

8

Approximating geodesic tree distance  

Science Conference Proceedings (OSTI)

Billera, Holmes, and Vogtmann introduced an intriguing new phylogenetic tree metric for weighted trees with useful properties related to statistical analysis. However, the best known algorithm for calculating this distance is exponential in the number ... Keywords: Analysis of algorithms, Phylogeny, Tree metric

Nina Amenta; Matthew Godwin; Nicolay Postarnakevich; Katherine St. John

2007-07-01T23:59:59.000Z

9

Short-Distance Structure of Nuclei  

Science Conference Proceedings (OSTI)

One of Jefferson Lab's original missions was to further our understanding of the short-distance structure of nuclei. In particular, to understand what happens when two or more nucleons within a nucleus have strongly overlapping wave-functions; a phenomena commonly referred to as short-range correlations. Herein, we review the results of the (e,e'), (e,e'p) and (e,e'pN) reactions that have been used at Jefferson Lab to probe this short-distance structure as well as provide an outlook for future experiments.

Douglas Higinbotham, Eliazer Piasetzky, Stephen Wood

2011-06-01T23:59:59.000Z

10

Rural Schools and Distance Education  

Science Conference Proceedings (OSTI)

In 2006, the author began research on current issues in rural education in which teachers recounted narratives of teaching. As deficits, they spoke of an inability to retain teachers, too little diversity in student programming, and lack of access to ... Keywords: Distance Education, Distance Education Technologies, Educational Technology, Rural Schools, Teacher Practices

Barbara G. Barter

2011-01-01T23:59:59.000Z

11

Random Distances Associated with Rhombuses  

E-Print Network (OSTI)

Parallelograms are one of the basic building blocks in two-dimensional tiling. They have important applications in a wide variety of science and engineering fields, such as wireless communication networks, urban transportation, operations research, etc. Different from rectangles and squares, the coordinates of a random point in parallelograms are no longer independent. As a case study of parallelograms, the explicit probability density functions of the random Euclidean distances associated with rhombuses are given in this report, when both endpoints are randomly distributed in 1) the same rhombus, 2) two parallel rhombuses sharing a side, and 3) two rhombuses having a common diagonal, respectively. The accuracy of the distance distribution functions is verified by simulation, and the correctness is validated by a recursion and a probabilistic sum. The first two statistical moments of the random distances, and the polynomial fit of the density functions are also given in this report for practical uses.

Yanyan Zhuang; Jianping Pan

2011-06-07T23:59:59.000Z

12

Long-Range Neutron Detection  

Science Conference Proceedings (OSTI)

A neutron detector designed for detecting neutron sources at distances of 50 to 100 m has been constructed and tested. This detector has a large surface area (1 m{sup 2}) to enhance detection efficiency, and it contains a collimator and shielding to achieve direction sensitivity and reduce background. An unusual feature of the detector is that it contains no added moderator, such as polyethylene, to moderate fast neutrons before they reach the {sup 3}He detector. As a result, the detector is sensitive mainly to thermal neutrons. The moderator-free design reduces the weight of the detector, making it more portable, and it also aids in achieving directional sensitivity and background reduction. Test results show that moderated fission-neutron sources of strength about 3 x 10{sup 5} n/s can be detected at a distance out to 70 m in a counting time of 1000 s. The best angular resolution of the detector is obtained at distances of 30 m or less. As the separation .distance between the source and detector increases, the contribution of scattered neutrons to the measured signal increases with a resultant decrease in the ability to detect the direction to a distant source. Applications for which the long-range detector appears to be suitable include detecting remote neutron sources (including sources in moving vehicles) and monitoring neutron storage vaults for the intrusion of humans and the effects they make on the detected neutron signal. Also, the detector can be used to measure waste for the presence of transuranic material in the presence of high gamma-ray background. A test with a neutron source (3 x 10{sup 5} n/s) in a vehicle showed that the detector could readily measure an increase in count rate at a distance of 10 m for vehicle speeds up to 35 mph (the highest speed tested). These results. indicate that the source should be detectable at this distance at speeds up to 55 mph.

AJ Peurrung; DC Stromswold; RR Hansen; PL Reeder; DS Barnett

1999-11-24T23:59:59.000Z

13

Academic Strategies for Distance Education  

Science Conference Proceedings (OSTI)

Education all over the world is of paramount importance as it provides economies with opportunities for development and growth. Education is important for both-developed and developing economies-for the former to maintain their lead position and for ... Keywords: Academic, Distance Education, Education, Knowledge, Learning, Quality, Standards, Strategies

Neeta Baporikar

2012-07-01T23:59:59.000Z

14

Distance indexing on road networks  

Science Conference Proceedings (OSTI)

The processing of kNN and continuous kNN queries on spatial network databases (SNDB) has been intensively studied recently. However, there is a lack of systematic study on the computation of network distances, which is the most fundamental difference ...

Haibo Hu; Dik Lun Lee; Victor C. S. Lee

2006-09-01T23:59:59.000Z

15

Water-to-Cement Distance Analysis Software  

Science Conference Proceedings (OSTI)

Water-to-Cement Distance Analysis Software. Description/Summary: ... Type of software: Analysis Software of Water-to-Cement Distance Analysis. ...

2013-06-11T23:59:59.000Z

16

Molecular communication options for long range nanonetworks  

Science Conference Proceedings (OSTI)

Nanotechnology is an emerging field of science devoted to provide new opportunities in a vast range of areas. In this paper, different techniques are proposed to enable the long range interconnection of nano-machines, deployed over distances from a few ... Keywords: Axons and action potential, Fluorescent proteins, MOLED, Molecular communication, Nanonetworks

Lluís Parcerisa Giné; Ian F. Akyildiz

2009-11-01T23:59:59.000Z

17

Adaptive multi-stage distance join processing  

Science Conference Proceedings (OSTI)

A spatial distance join is a relatively new type of operation introduced for spatial and multimedia database applications. Additional requirements for ranking and stopping cardinality are often combined with the spatial distance join in on-line query ...

Hyoseop Shin; Bongki Moon; Sukho Lee

2000-06-01T23:59:59.000Z

18

Metrics and methods for social distance  

E-Print Network (OSTI)

Distance measures are important for scientists because they illustrate the dynamics of geospatial topologies for physical and social processes. Two major types of distance are generally used for this purpose: Euclidean ...

Andris, Clio

2011-01-01T23:59:59.000Z

19

Normalized Compression Distance of Multiples  

E-Print Network (OSTI)

Normalized compression distance (NCD) is a parameter-free similarity measure based on compression. The NCD between pairs of objects is not sufficient for all applications. We propose an NCD of finite multisets (multiples) of objacts that is metric and is better for many applications. Previously, attempts to obtain such an NCD failed. We use the theoretical notion of Kolmogorov complexity that for practical purposes is approximated from above by the length of the compressed version of the file involved, using a real-world compression program. We applied the new NCD for multiples to retinal progenitor cell questions that were earlier treated with the pairwise NCD. Here we get significantly better results. We also applied the NCD for multiples to synthetic time sequence data. The preliminary results are as good as nearest neighbor Euclidean classifier.

Cohen, Andrew R

2012-01-01T23:59:59.000Z

20

Local discriminative distance metrics ensemble learning  

Science Conference Proceedings (OSTI)

The ultimate goal of distance metric learning is to incorporate abundant discriminative information to keep all data samples in the same class close and those from different classes separated. Local distance metric methods can preserve discriminative ... Keywords: Distance metrics learning, Local learning

Yang Mu; Wei Ding; Dacheng Tao

2013-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "tp4 range distance" 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

Compact range for variable-zone measurements  

DOE Patents (OSTI)

A compact range for testing antennas or radar targets includes a source for directing energy along a feedline toward a parabolic reflector. The reflected wave is a spherical wave with a radius dependent on the distance of the source from the focal point of the reflector. 2 figs.

Burnside, W.D.; Rudduck, R.C.; Yu, J.S.

1987-02-27T23:59:59.000Z

22

Compact range for variable-zone measurements  

DOE Patents (OSTI)

A compact range for testing antennas or radar targets includes a source for directing energy along a feedline toward a parabolic reflector. The reflected wave is a spherical wave with a radius dependent on the distance of the source from the focal point of the reflector.

Burnside, Walter D. (Columbus, OH); Rudduck, Roger C. (Columbus, OH); Yu, Jiunn S. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

23

EUCLIDEAN DISTANCE MATRIX COMPLETION PROBLEMS June ...  

E-Print Network (OSTI)

Jun 6, 2010 ... part by NSF Grant CCF 0514213 and DOE Grant DESC0002218. REFERENCES . [1] A. Y. Alfakih, On the uniqueness of Euclidean distance ...

24

Exploiting Kondo spin chains for generating long range distance independent entanglement  

Science Conference Proceedings (OSTI)

We investigate the entanglement properties of the Kondo spin chain when it is prepared in its ground state as well as its dynamics following a single bond quench. We show that a true measure of entanglement such as negativity enables to characterize ... Keywords: Entanglement, Entanglement router, Kondo spin chain, Quench dynamics

Abolfazl Bayat; Pasquale Sodano; Sougato Bose

2012-02-01T23:59:59.000Z

25

RADIO RANGING DEVICE  

DOE Patents (OSTI)

A radio ranging device is described. It utilizes a super regenerative detector-oscillator in which echoes of transmitted pulses are received in proper phase to reduce noise energy at a selected range and also at multiples of the selected range.

Nieset, R.T.

1961-05-16T23:59:59.000Z

26

Optimal expected-distance separating halfspace  

E-Print Network (OSTI)

If a different norm is used for each data set in order to measure distances to ... In practical settings, one usually has a data set D = {(x1,y1),..., (xp,yp)} ?. Rd × {?1

27

Sensor fault detection using the Mahalanobis distance  

Science Conference Proceedings (OSTI)

A method is described by which a localized sensor abnormality can be detected using the Mahalanobis distance. The Mahalanobis distance is approximately the weighted distance from the hyperplane formed by the principal components to the particular observation. Qualitatively, the principal components correspond to the physical laws that govern the behavior of the systems and constraints placed on the system. If there are more sensors than principal components, there are redundant measurements. This redundancy can be used to detect abnormalities that are due either to sensor failure or a localized change in the system being measured. The method compares the distribution of the Mahalanobis distance during normal operation with the distribution during the current operation. A likelihood ratio test is then used to determine if a sensor has gone bad or if operations in the reactor are different from normal. The sensor whose value is not normal is identified by comparing Mahalanobis distances computed with one sensor masked. When the abnormal sensor is masked, the Mahalanobis distance for this subset of sensors will be within prespecified bounds. The method is demonstrated on 20 subassembly output thermocouples in the core of Experimental Breeder Reactor II.

White, A.M.; Gross, K.C. (Argonne National Lab., IL (United States)); Kubic, W.L (Los Alamos National Lab., NM (United States))

1993-01-01T23:59:59.000Z

28

Long range dependence  

Science Conference Proceedings (OSTI)

The notion of long range dependence is discussed from a variety of points of view, and a new approach is suggested. A number of related topics is also discussed, including connections with non-stationary processes, with ergodic theory, self-similar processes ... Keywords: large deviations, long range dependence, rare events

Gennady Samorodnitsky

2007-01-01T23:59:59.000Z

29

Ranging Tests for Laser Scanners  

Science Conference Proceedings (OSTI)

... Group (683.01) provides special tests for instruments that measure distance using the passive reflectance of the target, ie, non-cooperative targets. ...

2011-10-28T23:59:59.000Z

30

Gamma ray burst distances and the timescape cosmology  

E-Print Network (OSTI)

Gamma ray bursts can potentially be used as distance indicators, providing the possibility of extending the Hubble diagram to redshifts ~7. Here we follow the analysis of Schaefer (2007), with the aim of distinguishing the timescape cosmological model from the \\LambdaCDM model by means of the additional leverage provided by GRBs in the range 2 < z < 7. We find that the timescape model fits the GRB sample slightly better than the \\LambdaCDM model, but that the systematic uncertainties are still too little understood to distinguish the models.

Peter R. Smale

2011-07-27T23:59:59.000Z

31

Shortcut estimation of safety distances of pipelines from explosives  

SciTech Connect

Purposely or accidentally detonating explosives near pressurized gas pipelines may have severe consequences on them, ranging from permanent deformation to gas loss or even violent rupture. Owing to lack of analytical prediction models, a shortcut is proposed in this article by which conservative estimations can be obtained of the safety distance of a pipeline from an explosion source, when explosive quantity is known. Alternatively, the maximum allowable explosive quantity can be calculated, provided distance is given. If both explosive quantity and distance are given, stresses on the pipeline may be estimated. Experimentally determined ratios of circumferential to longitudinal strains found in the literature are used. This ratio depends on soil peak particle velocity in contact with the pipeline. For total stress estimations on the pipeline, either biaxial or Huber-Hencky-Mises stresses are used, the latter being more conservative. Validation of proposed method is obtained against experimental observations and results. In this prediction model the characteristics of the explosion source, of the soil, and of the pipeline are taken into account.

Rigas, F.; Sebos, I. [National Technical Univ. of Athens (Greece)

1998-03-01T23:59:59.000Z

32

Bounds on distance distributions in codes of known size  

Science Conference Proceedings (OSTI)

We treat the problem of bounding components of the possible distance distributions of codes given the knowledge of their size and possibly minimum distance. Using the Beckner inequality from harmonic analysis, we derive upper bounds on distance distribution ...

A. E. Ashikhmin; G. D. Cohen; M. Krivelevich; S. N. Litsyn

2005-01-01T23:59:59.000Z

33

Semantic distances for technology landscape visualization  

Science Conference Proceedings (OSTI)

This paper presents a novel approach to the visualization of research domains in science and technology. The proposed methodology is based on the use of bibliometrics; i.e., analysis is conducted using information regarding trends and patterns ... Keywords: Clustering, Data mining, Semantic distance, Technology forecasting

Wei Lee Woon; Stuart Madnick

2012-08-01T23:59:59.000Z

34

Solar Decathlon 2013: Going the Distance | Department of Energy  

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

Going the Distance Solar Decathlon 2013: Going the Distance September 17, 2013 - 4:26pm Addthis Toggle Routes onoff Return to map Solar Decathlon Journeys Visualizing the...

35

High dynamic range imaging  

Science Conference Proceedings (OSTI)

Current display devices can display only a limited range of contrast and colors, which is one of the main reasons that most image acquisition, processing, and display techniques use no more than eight bits per color channel. This course outlines recent ...

Paul Debevec; Erik Reinhard; Greg Ward; Sumanta Pattanaik

2004-08-01T23:59:59.000Z

36

RANGE DESIGN CRITERIA  

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

RANGE DESIGN CRITERIA RANGE DESIGN CRITERIA U.S. DEPARTMENT OF ENERGY Office of Health, Safety and Security AVAILABLE ONLINE AT: INITIATED BY: http://www.hss.energy.gov Office of Health, Safety and Security Notices This document is intended for the exclusive use of elements of the Department of Energy (DOE), to include the National Nuclear Security Administration, their contractors, and other government agencies/individuals authorized to use DOE facilities. DOE disclaims any and all liability for personal injury or property damage due to use of this document in any context by any organization, group, or individual, other than during official government activities. Local DOE management is responsible for the proper execution of firearms-related programs for

37

Long working distance incoherent interference microscope  

DOE Patents (OSTI)

A full-field imaging, long working distance, incoherent interference microscope suitable for three-dimensional imaging and metrology of MEMS devices and test structures on a standard microelectronics probe station. A long working distance greater than 10 mm allows standard probes or probe cards to be used. This enables nanometer-scale 3-dimensional height profiles of MEMS test structures to be acquired across an entire wafer while being actively probed, and, optionally, through a transparent window. An optically identical pair of sample and reference arm objectives is not required, which reduces the overall system cost, and also the cost and time required to change sample magnifications. Using a LED source, high magnification (e.g., 50.times.) can be obtained having excellent image quality, straight fringes, and high fringe contrast.

Sinclair, Michael B. (Albuquerque, NM); De Boer, Maarten P. (Albuquerque, NM)

2006-04-25T23:59:59.000Z

38

OFA2013_Storage@Distance.pptx  

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

NERSC Storage Systems Group NERSC Storage Systems Group Storage at a Distance --- 1 --- Open F abrics A lliance U ser D ay What is storage at a distance? * Data i s n ot l ocal t o t he u ser/resource * Processing a nd w orkflow n eeds a re n ear r eal---7me - Don't w ant t o w ait u n9l d ata t ransfer i s c omplete - Need t o s ee r esults, m ake a djustments, a nd t ry a gain * Network w ill b ecome p art o f t he i nstruments - Telescopes a nd t heir d ata - Sequencers a nd t heir g enome d ata - Light s ources a nd t heir d ata * Is t here a n a rchitecture/protocol t hat i s n ecessary today for successfully providing storage at a distance? - Ethernet v s. I B - ROCE v s. R DMA v s. I P --- 2 --- Open F abrics A lliance U ser D ay Use case 1: Instruments (beam lines) * ShiB w ork ( 24hr c overage) - Scien9sts fl y i n a nd u se t he i nstrument

39

Neutron range spectrometer  

DOE Patents (OSTI)

A neutron range spectrometer and method for determining the neutron energy spectrum of a neutron emitting source are disclosed. Neutrons from the source are colliminated along a collimation axis and a position sensitive neutron counter is disposed in the path of the collimated neutron beam. The counter determines positions along the collimation axis of interactions between the neutrons in the neutron beam and a neutron-absorbing material in the counter. From the interaction positions, a computer analyzes the data and determines the neutron energy spectrum of the neutron beam. The counter is preferably shielded and a suitable neutron-absorbing material is He-3. 1 fig.

Manglos, S.H.

1988-03-10T23:59:59.000Z

40

Range imaging laser radar  

SciTech Connect

A laser source is operated continuously and modulated periodically (typicy sinusoidally). A receiver imposes another periodic modulation on the received optical signal, the modulated signal being detected by an array of detectors of the integrating type. Range to the target determined by measuring the phase shift of the intensity modulation on the received optical beam relative to a reference. The receiver comprises a photoemitter for converting the reflected, periodically modulated, return beam to an accordingly modulated electron stream. The electron stream is modulated by a local demodulation signal source and subsequently converted back to a photon stream by a detector. A charge coupled device (CCD) array then averages and samples the photon stream to provide an electrical signal in accordance with the photon stream.

Scott, Marion W. (Albuquerque, NM)

1990-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tp4 range distance" 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

Lunar Laser Ranging Science  

E-Print Network (OSTI)

Analysis of Lunar Laser Ranging (LLR) data provides science results: gravitational physics and ephemeris information from the orbit, lunar science from rotation and solid-body tides, and Earth science. Sensitive tests of gravitational physics include the Equivalence Principle, limits on the time variation of the gravitational constant G, and geodetic precession. The equivalence principle test is used for an accurate determination of the parametrized post-Newtonian (PPN) parameter \\beta. Lunar ephemerides are a product of the LLR analysis used by current and future spacecraft missions. The analysis is sensitive to astronomical parameters such as orbit, masses and obliquity. The dissipation-caused semimajor axis rate is 37.9 mm/yr and the associated acceleration in orbital longitude is -25.7 ''/cent^2, dominated by tides on Earth with a 1% lunar contribution. Lunar rotational variation has sensitivity to interior structure, physical properties, and energy dissipation. The second-degree lunar Love numbers are detected; k_2 has an accuracy of 11%. Lunar tidal dissipation is strong and its Q has a weak dependence on tidal frequency. A fluid core of about 20% the Moon's radius is indicated by the dissipation data. Evidence for the oblateness of the lunar fluid-core/solid-mantle boundary is getting stronger. This would be independent evidence for a fluid lunar core. Moon-centered coordinates of four retroreflectors are determined. Station positions and motion, Earth rotation variations, nutation, and precession are determined from analyses. Extending the data span and improving range accuracy will yield improved and new scientific results. Adding either new retroreflectors or precise active transponders on the Moon would improve the accuracy of the science results.

James G. Williams; Dale H. Boggs; Slava G. Turyshev; J. Todd Ratcliff

2004-11-18T23:59:59.000Z

42

2D Euclidean distance transform algorithms: A comparative survey  

Science Conference Proceedings (OSTI)

The distance transform (DT) is a general operator forming the basis of many methods in computer vision and geometry, with great potential for practical applications. However, all the optimal algorithms for the computation of the exact Euclidean DT (EDT) ... Keywords: Dijkstra's algorithm, Distance transform, computational geometry, exact Euclidean distance map, performance evaluation, shape analysis

Ricardo Fabbri; Luciano Da F. Costa; Julio C. Torelli; Odemir M. Bruno

2008-02-01T23:59:59.000Z

43

Method and apparatus for making absolute range measurements  

DOE Patents (OSTI)

This invention relates to a method and apparatus for making absolute distance or ranging measurements using Fresnel diffraction. The invention employs a source of electromagnetic radiation having a known wavelength or wavelength distribution, which sends a beam of electromagnetic radiation through a screen at least partially opaque at the wavelength. The screen has an aperture sized so as to produce a Fresnel diffraction pattern. A portion of the beam travels through the aperture to a detector spaced some distance from the screen. The detector detects the central intensity of the beam as well as a set of intensities displaced from a center of the aperture. The distance from the source to the target can then be calculated based upon the known wavelength, aperture radius, and beam intensity.

Earl, Dennis D [Knoxville, TN; Allison, Stephen W [Knoxville, TN; Cates, Michael R [Oak Ridge, TN; Sanders, Alvin J [Knoxville, TN

2002-09-24T23:59:59.000Z

44

Distance Is Not Dead: Social Interaction and Geographical Distance in the Internet Era  

E-Print Network (OSTI)

The Internet revolution has made long-distance communication dramatically faster, easier, and cheaper than ever before. This, it has been argued, has decreased the importance of geographic proximity in social interactions, transforming our world into a global village with a borderless society. We argue for the opposite: while technology has undoubtedly increased the overall level of communication, this increase has been most pronounced for local social ties. We show that the volume of electronic communications is inversely proportional to geographic distance, following a Power Law. We directly study the importance of physical proximity in social interactions by analyzing the spatial dissemination of new baby names. Counter-intuitively, and in line with the above argument, the importance of geographic proximity has dramatically increased with the internet revolution.

Goldenberg, Jacob

2009-01-01T23:59:59.000Z

45

Method and apparatus for coherent burst ranging  

DOE Patents (OSTI)

A high resolution ranging method is described utilizing a novel modulated waveform, hereafter referred to as coherent burst modulation. In the coherent burst method, high frequency modulation of an acoustic or electromagnetic transmitter, such as a laser, is performed at a modulation frequency. This modulation frequency is transmitted quasi-continuously in the form of interrupted bursts of radiation. Energy from the transmitter is directed onto a target, interacts with the target, and the returning energy is collected. The encoded burst pattern contained in the collected return signal is detected coherently by a receiver that is tuned so as to be principally sensitive to the modulation frequency. The receiver signal is processed to determine target range using both time-of-flight of the burst envelope and phase shift of the high frequency modulation. This approach effectively decouples the maximum unambiguous range and range resolution relationship of earlier methods, thereby allowing high precision ranging to be conducted at arbitrarily long distances using at least one burst of encoded energy. The use of a receiver tuned to the high frequency modulation contained within the coherent burst vastly improves both sensitivity in the detection of the target return signal and rejection of background interferences, such as ambient acoustic or electromagnetic noise. Simultaneous transmission at several energies (or wavelengths) is possible by encoding each energy with a separate modulation frequency or pattern; electronic demodulation at the receiver allows the return pattern for each energy to be monitored independently. Radial velocity of a target can also be determined by monitoring change in phase shift of the return signal as a function of time. 12 figs.

Wachter, E.A.; Fisher, W.G.

1998-04-28T23:59:59.000Z

46

Method and apparatus for coherent burst ranging  

DOE Patents (OSTI)

A high resolution ranging method is described utilizing a novel modulated waveform, hereafter referred to as coherent burst modulation. In the coherent burst method, high frequency modulation of an acoustic or electromagnetic transmitter, such as a laser, is performed at a modulation frequency. This modulation frequency is transmitted quasi-continuously in the form of interrupted bursts of radiation. Energy from the transmitter is directed onto a target, interacts with the target, and the returning energy is collected. The encoded burst pattern contained in the collected return signal is detected coherently by a receiver that is tuned so as to be principally sensitive to the modulation frequency. The receiver signal is processed to determine target range using both time-of-flight of the burst envelope and phase shift of the high frequency modulation. This approach effectively decouples the maximum unambiguous range and range resolution relationship of earlier methods, thereby allowing high precision ranging to be conducted at arbitrarily long distances using at least one burst of encoded energy. The use of a receiver tuned to the high frequency modulation contained within the coherent burst vastly improves both sensitivity in the detection of the target return signal and rejection of background interferences, such as ambient acoustic or electromagnetic noise. Simultaneous transmission at several energies (or wavelengths) is possible by encoding each energy with a separate modulation frequency or pattern; electronic demodulation at the receiver allows the return pattern for each energy to be monitored independently. Radial velocity of a target can also be determined by monitoring change in phase shift of the return signal as a function of time.

Wachter, Eric A. (138 Bay Path Dr., Oak Ridge, TN 37830); Fisher, Walter G. (8514 Carl Valentine, Knoxville, TN 37931)

1998-01-01T23:59:59.000Z

47

Method and apparatus for making absolute range measurements  

SciTech Connect

This invention relates to a method and apparatus for making absolute distance or ranging measurements using Fresnel diffraction. The invention employs a source of electromagnetic radiation having a known wavelength or wavelength distribution, which sends a beam of electromagnetic radiation through an object which causes it to be split (hereinafter referred to as a "beamsplitter"), and then to a target. The beam is reflected from the target onto a screen containing an aperture spaced a known distance from the beamsplitter. The aperture is sized so as to produce a Fresnel diffraction pattern. A portion of the beam travels through the aperture to a detector, spaced a known distance from the screen. The detector detects the central intensity of the beam. The distance from the object which causes the beam to be split to the target can then be calculated based upon the known wavelength, aperture radius, beam intensity, and distance from the detector to the screen. Several apparatus embodiments are disclosed for practicing the method embodiments of the present invention.

Allison, Stephen W. (Knoxville, TN); Cates, Michael R. (Oak Ridge, TN); Key, William S. (Knoxville, TN); Sanders, Alvin J. (Knoxville, TN); Earl, Dennis D. (Knoxville, TN)

1999-01-01T23:59:59.000Z

48

Southern Basin and Range Geothermal Region | Open Energy Information  

Open Energy Info (EERE)

Basin and Range Geothermal Region Basin and Range Geothermal Region Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Southern Basin and Range Geothermal Region Details Areas (0) Power Plants (0) Projects (0) Techniques (0) Map: {{{Name}}} North-south-striking and west-dipping Basin and Range province normal faults form the western edge of the Sierra Madre Occidental plateau in northeastern Sonora. These faults and associated half-grabens extend over a distance of more than 300 km between the San Bernardino basin in the north and the Sahuaripa basin in the south. Active Tectonics of Northeastern Sonora, Mexico (Southern Basin and Range Province) and the 3 May 1887 Mw 7.4 Earthquake [1] References ↑ "Active Tectonics of Northeastern Sonora, Mexico (Southern Basin and Range Province) and the 3 May 1887 Mw 7.4 Earthquake"

49

On electric resistances for distance-regular graphs  

E-Print Network (OSTI)

We investigate the behavior of electric potentials on distance-regular graphs, and extend some results of a prior paper. Our main result, Theorem 4, shows(together with Corollary 3) that if distance is measured by the electric resistance between points then all points are close to being equidistant on a distance-regular graph with large valency. A number of auxiliary results are also presented.

Koolen, Jack; Park, Jongyook

2011-01-01T23:59:59.000Z

50

Hazardous Waste Minimum Distance Requirements (Connecticut) | Department of  

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

Minimum Distance Requirements (Connecticut) Minimum Distance Requirements (Connecticut) Hazardous Waste Minimum Distance Requirements (Connecticut) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Program Info State Connecticut Program Type Siting and Permitting Provider Department of Energy and Environmental Protection These regulations set minimum distance requirements between certain types of facilities that generate, process, store, and dispose of hazardous waste

51

Spatial chemical distance based on atomic property fields  

E-Print Network (OSTI)

009-9316-x Spatial chemical distance based on atomicSimilarity of compound chemical structures often leads tonot always true, as distinct chemical scaffolds can exhibit

Grigoryan, A. V.; Kufareva, I.; Totrov, M.; Abagyan, R. A.

2010-01-01T23:59:59.000Z

52

Consumer Adoption of Online Banking: Does Distance Matter?  

E-Print Network (OSTI)

Adoption of Online Banking: Does Distance Matter? Beethikaand Goolsbee, Austan (2002). "Does the Internet Make Marketsto the closest bank branch does not affect the likelihood of

Khan, Beethika S.

2004-01-01T23:59:59.000Z

53

Range of Glaciers: The Exploration of the Northern Cascade Range  

E-Print Network (OSTI)

D. Hook, Reference Librarian, University of Idaho Library,Moscow, Idaho 83844-2350, (208) 885-6066.Robert D. Hook University of Idaho, USA Fred Beckey. Range

Hook, Robert D.

2006-01-01T23:59:59.000Z

54

Property:Wave Period Range(s) | Open Energy Information  

Open Energy Info (EERE)

Wave Period Range(s) Wave Period Range(s) Jump to: navigation, search Property Name Wave Period Range(s) Property Type String Pages using the property "Wave Period Range(s)" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + 10.0 + 10-ft Wave Flume Facility + 0.0 + 11-ft Wave Flume Facility + 10.0 + 2 2-ft Flume Facility + 10.0 + 3 3-ft Wave Flume Facility + 10.0 + 5 5-ft Wave Flume Facility + 10.0 + 6 6-ft Wave Flume Facility + 10.0 + A Alden Large Flume + 2.1 + Alden Small Flume + 0.0 + Alden Wave Basin + 1.0 + B Breakwater Research Facility + 0.0 + C Carderock Maneuvering & Seakeeping Basin + 0.0 + Carderock Tow Tank 2 + 0.0 + Carderock Tow Tank 3 + 0.0 + Chase Tow Tank + 3.1 + Coastal Harbors Modeling Facility + 2.3 +

55

Distribution of the distance between opposite nodes of random polygons with a fixed knot  

E-Print Network (OSTI)

We examine numerically the distribution function $f_K(r)$ of distance $r$ between opposite polygonal nodes for random polygons of $N$ nodes with a fixed knot type $K$. Here we consider three knots such as $\\emptyset$, $3_1$ and $3_1 \\sharp 3_1$. In a wide range of $r$, the shape of $f_K(r)$ is well fitted by the scaling form of self-avoiding walks. The fit yields the Gaussian exponents $\

Akihisa Yao; Hiroshi Tsukahara; Tetsuo Deguchi; Takeo Inami

2004-03-09T23:59:59.000Z

56

A Collaborative Case Study System for Distance Learning  

Science Conference Proceedings (OSTI)

Distance Learning from Case Studies involves enabling collaboration between two or more learners at a distance on a case study activity. In this paper we present an empirical qualitative study that simulates a learning scenario in which a pair of subjects ...

Marta C. Rosatelli; John A. Self

2004-01-01T23:59:59.000Z

57

Measuring Dialect Distance Phonetically John Nerbonne and Wilbert Heeringa  

E-Print Network (OSTI)

- tance, both simple (based on atomic char- acters) and complex (based on feature vec- tors). The measurements using feature vec- tors varied according to whether city-block distance, Euclidean distance or (a sensitive, that city-block dis- tance is a good measure of phonetic over- lap of feature vectors

58

Computing the Fréchet distance between piecewise smooth curves  

Science Conference Proceedings (OSTI)

We consider the Frechet distance between two curves which are given as a sequence of m+n curved pieces. If these pieces are sufficiently well-behaved, we can compute the Frechet distance in O(mnlog(mn)) time. The decision version of the problem can be ... Keywords: Shape matching

Günter Rote

2007-08-01T23:59:59.000Z

59

A Novel Distributed Simulation Approach in Adaptive Distance Relaying  

Science Conference Proceedings (OSTI)

In this paper, an adaptive distance relaying strategy based on the global network simulation (GNS) concept is presented. The GNS concept is actually a distributed simulation approach (DSA) for piecewise analysis of large-scale power grids using diakoptics ... Keywords: adaptive distance relaying, coordination rules, diakoptics, distributed simulation approach (DSA), global network simulation (GNS), large change sensitivity (LCS), mutually coupled lines

V. Gohari Sadr; S.M. Kouhsari

2009-03-01T23:59:59.000Z

60

Optimal selection of robots by using distance based approach method  

Science Conference Proceedings (OSTI)

A deterministic quantitative model based on Distance Based Approach (DBA) method has been developed for evaluation, selection and ranking of robots, which is a concept hitherto not employed in selection problem of this kind. As a significant development ... Keywords: Distance based approach, Optimized selection, Ranking, Robots

Rishi Kumar; R. K. Garg

2010-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "tp4 range distance" from the National Library of EnergyBeta (NLEBeta).
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61

An extreme-distance approach to multiple criteria ranking  

Science Conference Proceedings (OSTI)

A distance approach based on extreme points, or predefined ideal and anti-ideal points, is proposed to improve on the TOPSIS (Technique for Order Performance [or Ordered Preference] by Similarity to Ideal Solution) method of multiple criteria ranking. ... Keywords: Comparative study, Distance-based ranking, Multiple criteria decision analysis, Multiple criteria ranking, TOPSIS

Ye Chen; D. Marc Kilgour; Keith W. Hipel

2011-03-01T23:59:59.000Z

62

Horizontal Variability in 10 m Wind Velocities as Observed at Two Prairie Sites Separated by a Distance of 7.5 km  

Science Conference Proceedings (OSTI)

It is important to assess the representativeness of mesoscale wind data because most short range pollution models assume that wind velocity will remain constant over distances in the order of 10 km. Previous observational studies have shown that ...

D. M. Leahey; M. C. Hansen; M. B. Schroeder

1989-11-01T23:59:59.000Z

63

Solar Decathlon 2013: Going the Distance | Department of Energy  

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

Going the Distance Going the Distance Solar Decathlon 2013: Going the Distance September 17, 2013 - 4:26pm Addthis Toggle Routes on/off Return to map → Solar Decathlon Journeys Visualizing the distances that each Solar Decathlon house travelled Click competitors to toggle their journeys on and off. All routes and distances are approximate. Rebecca Matulka Rebecca Matulka Digital Communications Specialist, Office of Public Affairs Solar Decathlon 2013: In our new blog series, we're going behind the scenes to show you what it takes to compete in the Solar Decathlon. First up: Meet the teams competing this year and learn how they were selected. Part two looks at how the teams must master the art of fundraising. What does it take to design an energy-efficient, solar-powered house? Part three looks at creating a winning design.

64

Analysis of the Argonne distance tabletop exercise method.  

Science Conference Proceedings (OSTI)

The purpose of this report is to summarize and evaluate the Argonne Distance Tabletop Exercise (DISTEX) method. DISTEX is intended to facilitate multi-organization, multi-objective tabletop emergency response exercises that permit players to participate from their own facility's incident command center. This report is based on experience during its first use during the FluNami 2007 exercise, which took place from September 19-October 17, 2007. FluNami 2007 exercised the response of local public health officials and hospitals to a hypothetical pandemic flu outbreak. The underlying purpose of the DISTEX method is to make tabletop exercising more effective and more convenient for playing organizations. It combines elements of traditional tabletop exercising, such as scenario discussions and scenario injects, with distance learning technologies. This distance-learning approach also allows playing organizations to include a broader range of staff in the exercise. An average of 81.25 persons participated in each weekly webcast session from all playing organizations combined. The DISTEX method required development of several components. The exercise objectives were based on the U.S. Department of Homeland Security's Target Capabilities List. The ten playing organizations included four public health departments and six hospitals in the Chicago area. An extent-of-play agreement identified the objectives applicable to each organization. A scenario was developed to drive the exercise over its five-week life. Weekly problem-solving task sets were designed to address objectives that could not be addressed fully during webcast sessions, as well as to involve additional playing organization staff. Injects were developed to drive play between webcast sessions, and, in some cases, featured mock media stories based in part on player actions as identified from the problem-solving tasks. The weekly 90-minute webcast sessions were discussions among the playing organizations that were moderated by a highly-qualified public health physician, who reviewed key scenario developments and player actions, as well as solicited input from each playing organization. The exercise control structure included trusted agents who oversaw exercise planning, playing organization points of contact to ensure exercise coordination, and exercise controller/evaluators to initiate and oversee exercise play. A password-protected exercise website was designed for FluNami 2007 to serve as a compartmentalized central information source, and for transmitting exercise documents. During the course of FluNami 2007, feedback on its quality was collected from players and controller/evaluators. Player feedback was requested at the conclusion of each webcast, upon completion of each problem-solving task, and on October 17, 2007, after the final webcast session had ended. The overall average score given to FluNami 2008 by the responding players was 3.9 on a five-point scale. In addition, suggestions for improving the process were provided by Argonne controller/evaluators after the exercise concluded. A series of recommendations was developed based on feedback from the players and controller/evaluators. These included improvements to the exercise scope and objectives, the problem-solving tasks, the scenarios, exercise control, the webcast sessions, the exercise website, and the player feedback process.

Tanzman, E. A.; Nieves, L. A.; Decision and Information Sciences

2008-02-14T23:59:59.000Z

65

Proposal for combined use of parallax and lunar laser ranging for Michelson-Morley experimentation  

E-Print Network (OSTI)

The null findings of the terrestrially conducted Michelson-Morley type experiments have been influential to determining which physical theory best fits reality. Here, we propose the use of parallax and ranging techniques of distance measurement for Michelson-Morley type experimentation on astronomical scales, elaborating with the earth-moon system. A motivation is the bypass of any hypothetical earth-bound medium as an explanation for the earlier null findings. When the solar system 370 kms-1 motion relative to the cosmic microwave background is taken into consideration, the higher value of receptor velocity and the longer distance sets the stage for a confrontation between Lorentzian and Galileo-Newton dynamical transformations. Two-way ranging time carries along with it information about light's dynamical transformation, thus a comparison of distance measured by ranging with that by parallax, a geometrical method can reveal the correctness of assumptions underlying the dynamical behaviour of light. Two-way ranging times unaffected by the 370 kms-1 velocity indicate null results and further buttress Einstein's relativity theory, while ranging times affected by this velocity indicate non-null results and will manifest as a general increase of ranging distance above actual geometric lunar distance, up to 500 metres in RA 11h 11.649m and 23h 11.649m coordinate directions.

Akinbo Ojo

2009-09-27T23:59:59.000Z

66

Applications of a 3D Range Camera Towards Healthcare ...  

Science Conference Proceedings (OSTI)

... The NIST Healthcare Mobility Project has recently ... obstacles are then projected and accumulated ... The Manhattan distance (distance between two ...

2012-10-24T23:59:59.000Z

67

APS Long Range Operations Schedule  

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

Shutdown Planning Shutdown Planning Planning Templates Shutdown Planning Schedules: Current Shutdown Schedule Archives: 2006 - 2013 APS Long-Range Operations Schedule: 2014 Archives: 2013 | 2012 2011 | 2010 | 2009 | 2008 2007 | 2006 | 2005 | 2004 2003 | 2002 | 2001 | 2000 1999 | 1998 | 1997 | 1996 APS Long-Range Operations Schedule (Fiscal Year 2014) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2013-3 2014-1 2014-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2

68

Adaptively parallelizing distributed range queries  

Science Conference Proceedings (OSTI)

We consider the problem of how to best parallelize range queries in a massive scale distributed database. In traditional systems the focus has been on maximizing parallelism, for example by laying out data to achieve the highest throughput. However, ...

Ymir Vigfusson; Adam Silberstein; Brian F. Cooper; Rodrigo Fonseca

2009-08-01T23:59:59.000Z

69

Distance visualization of ultrascale data with explorable images  

Science Conference Proceedings (OSTI)

This talk presents a new approach to distance visualization of very large data sets output from scientific supercomputing. The processing power of massively parallel supercomputers increases at a rather fast rate, about an order of magnitude faster every ...

Kwan-Liu Ma; Anna Tikhonova; Carlos D. Correa

2010-07-01T23:59:59.000Z

70

Redshift-Independent Distances to Type Ia Supernovae  

E-Print Network (OSTI)

We describe a procedure for accurately determining luminosity distances to Type Ia supernovae (SNe Ia) without knowledge of redshift. This procedure, which may be used as an extension of any of the various distance determination methods currently in use, is based on marginalizing over redshift, removing the requirement of knowing $z$ a priori. We demonstrate that the Hubble diagram scatter of distances measured with this technique is approximately equal to that of distances derived from conventional redshift-specific methods for a set of 60 nearby SNe Ia. This indicates that accurate distances for cosmological SNe Ia may be determined without the requirement of spectroscopic redshifts, which are typically the limiting factor for the number of SNe that modern surveys can collect. Removing this limitation would greatly increase the number of SNe for which current and future SN surveys will be able to accurately measure distance. The method may also be able to be used for high-$z$ SNe Ia to determine cosmological density parameters without redshift information.

Brian J. Barris; John L. Tonry

2004-08-04T23:59:59.000Z

71

SBF Distances to Leo and Virgo using the HST  

E-Print Network (OSTI)

We have used archive HST WFPC2 data for three elliptical galaxies (NGC 3379 in the Leo I group, and NGC 4472 and NGC 4406 in the Virgo cluster) to determine their distances using the Surface Brightness Fluctuation (SBF) method as described by Tonry and Schneider (1988). A comparison of the HST results with the SBF distance moduli of Ciardullo et al (1993) shows significant disagreement and suggests that the r.m.s. error on these ground-based distance moduli is actually as large as +-0.25 mag. The agreement is only slightly improved when we compare our results with the HST and ground-based SBF distances from Ajhar et al (1997) and Tonry et al (1997); the comparison suggests that a lower limit on the error of the HST SBF distance moduli is +-0.17 mag. Overall, these results suggest that previously quoted measurement errors may underestimate the true error in SBF distance moduli by at least a factor of 2-3.

P. W. Morris; T. Shanks

1998-02-05T23:59:59.000Z

72

RANGE INCREASER FOR PNEUMATIC GAUGES  

DOE Patents (OSTI)

An improved pneumatic gage is offered in which the linear range has been increased without excessive air consumption. This has been accomplished by providing an expansible antechamber connected to the nozzle of the gage so that the position of the nozzle with respect to the workpiece is varied automatically by variation in pressure within the antechamber. This arrangement ensures that the nozzle-to-workpiece clearance is maintained within certain limits, thus obtaining a linear relation of air flow to nozzle-to-workpiece clearance over a wider range.

Fowler, A.H.; Seaborn, G.B. Jr.

1960-09-27T23:59:59.000Z

73

Phase-mediated long-range interactions of cavity solitons in a semiconductor laser with a saturable absorber  

SciTech Connect

We numerically study the dynamics of pairs of cavity solitons in a laser. We show that the solitons interact even at distances much greater than their sizes in the intensity and carrier-densities profile. The interaction is mediated by the phase. In a certain range of initial values of the distance, the solitons adjust their position until they form bound states. There are two such bound states, corresponding to different equilibrium distances, in which the solitons display partial phase locking, that is, their relative phase slowly oscillates as in a phase-entrained state. In those states, the two solitons can be switched on and off independently. For smaller initial distances, only one soliton survives. For larger initial distances, the solitons lock in phase and repel each other up to a distance of about ten soliton diameters.

Vahed, H. [Faculty of Physics, University of Tabriz, Tabriz (Iran, Islamic Republic of); Kheradmand, R. [Photonics Group, Research Institute for Applied Physics and Astronomy, University of Tabriz, Tabriz (Iran, Islamic Republic of); Tajalli, H. [Faculty of Physics, University of Tabriz, Tabriz (Iran, Islamic Republic of); Photonics Group, Research Institute for Applied Physics and Astronomy, University of Tabriz, Tabriz (Iran, Islamic Republic of); Tissoni, G. [Institut Non Lineaire de Nice, CNRS, Universite de Nice Sophia Antipolis, UMR 6618, 1361 Route des Lucioles, F-06560 Valbonne (France); CNISM, Research Unit of Como, Via Valleggio 11, I-22100 Como (Italy); Lugiato, L. A.; Prati, F. [Dipartimento di Fisica e Matematica, Universita dell'Insubria, Via Valleggio 11, I-22100 Como (Italy); CNISM, Research Unit of Como, Via Valleggio 11, I-22100 Como (Italy)

2011-12-15T23:59:59.000Z

74

The extragalactic distance scale Key Project. III. The discovery of Cepheids and a new distance to M101 using the {ital Hubble} {ital Space} {ital Telescope}  

Science Conference Proceedings (OSTI)

We report on the discovery of 29 Cepheid variables in the galaxy M101 using the original Wide Field Camera (WFC) and the new Wide Field and Planetary Camera 2 (WFPC2) on the {ital Hubble} {ital Space} {ital Telescope}. We observed a field in M101 at 17 independent epochs in {ital V} (F555W), five epochs in {ital I} (F785LP/F814W), and one epoch in {ital B} (F439W), with a time interval baseline of 381 days. We have found Cepheids with periods ranging from 10 to 60 days. The data have been calibrated using WFPC2 observations with zero points derived from {omega} Cen, Pal 4, and NGC 2419 observations. This calibration has been verified by using the Medium Deep Survey (MDS) WFC photometric zero points, and ground-based secondary standards in {ital V} and {ital I}. The {ital V} calibrations agree to {plus_minus}0.06 mag, and the {ital I} calibrations agree to {plus_minus}0.04 mag. We have constructed {ital V} and {ital I} period-luminosity (PL) relations and have derived apparent distance moduli based on a distance modulus for the Large Magellanic Cloud (LMC) of 18.50 mag and a reddening of {ital E}({ital B}{minus}{ital V})=0.10 mag to the LMC Cepheids. Period-residual minimization was used to minimize the effects of Malmquist bias on the period-luminosity relation fitting process. Using a Galactic extinction law and the apparent {ital V} and {ital I} distance moduli, we have found a mean reddening for the M101 sample of {ital E}({ital B}{minus}{ital V})=0.03 mag and a true distance modulus to M101 of 29.34{plus_minus}0.17 mag, corresponding to a distance of 7.4{plus_minus}0.6 Mpc. The sources of error have been rigorously tracked through an error budget; systematic and random errors contribute roughly equally to the quoted error. The mean gas-phase metal abundances in the LMC and in the M101 outer field are similar so we expect metallicity effects to be minimal. (Abstract Truncated)

Kelson, D.D.; Illingworth, G.D. [UCO/Lick Observatory, University of California, Santa Cruz, California 95064 (United States); Freedman, W.F. [Carnegie Observatories, 813 Santa Barbara Street, Pasadena, California 91101 (United States); Graham, J.A. [Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broad Branch Road NW, Washington, District of Columbia 20015 (United States); Hill, R. [Carnegie Observatories, 813 Santa Barbara Street, Pasadena, California 91101 (United States); Madore, B.F. [NASA/IPAC Extragalactic Database, Infrared Processing and Analysis Center, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91125 (United States); Saha, A. [Space Telescope Institute, Homewood Campus, Baltimore, Maryland 21218 (United States); Stetson, P.B. [Dominion Astrophysical Observatory, National Research Council, 5071 West Saanich Road, Victoria, BC, V8X 4M6 (CANADA); Kennicutt, R.C. Jr. [Steward Observatory, University of Arizona, Tucson, Arizona 85721 (United States); Mould, J.R. [Mt. Stromlo and Siding Springs Observatories, Private Bag, Weston Creek Post Office ACT 2611 (Australia); Hughes, S.M. [Royal Greenwich Observatory, Madingley Road, Cambridge, (United Kingdom) CB3 0EZ; Ferrarese, L. [Space Telescope Institute, Homewood Campus, Baltimore, Maryland 21218 (United States)]|[Department of Physics and Astronomy, Bloomberg 501, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218 (United States); Phelps, R. [Carnegie Observatories, 813 Santa Barbara Street, Pasadena, California 91101 (United States); Turner, A. [Steward Observatory, University of Arizona, Tucson, Arizona 85721 (United States); Cook, K.H. [Lawrence Livermore National Laboratory, Mississippi L-401, P.O. Box 808, Livermore, California 94550 (United States); Ford, H. [Space Telescope Institute, Homewood Campus, Baltimore, Maryland 21218 (United States)

1996-05-01T23:59:59.000Z

75

Advancing Tests of Relativistic Gravity via Laser Ranging to Phobos  

E-Print Network (OSTI)

Phobos Laser Ranging (PLR) is a concept for a space mission designed to advance tests of relativistic gravity in the solar system. PLR's primary objective is to measure the curvature of space around the Sun, represented by the Eddington parameter $\\gamma$, with an accuracy of two parts in $10^7$, thereby improving today's best result by two orders of magnitude. Other mission goals include measurements of the time-rate-of-change of the gravitational constant, $G$ and of the gravitational inverse square law at 1.5 AU distances--with up to two orders-of-magnitude improvement for each. The science parameters will be estimated using laser ranging measurements of the distance between an Earth station and an active laser transponder on Phobos capable of reaching mm-level range resolution. A transponder on Phobos sending 0.25 mJ, 10 ps pulses at 1 kHz, and receiving asynchronous 1 kHz pulses from earth via a 12 cm aperture will permit links that even at maximum range will exceed a photon per second. A total measurement precision of 50 ps demands a few hundred photons to average to 1 mm (3.3 ps) range precision. Existing satellite laser ranging (SLR) facilities--with appropriate augmentation--may be able to participate in PLR. Since Phobos' orbital period is about 8 hours, each observatory is guaranteed visibility of the Phobos instrument every Earth day. Given the current technology readiness level, PLR could be started in 2011 for launch in 2016 for 3 years of science operations. We discuss the PLR's science objectives, instrument, and mission design. We also present the details of science simulations performed to support the mission's primary objectives.

Slava G. Turyshev; William Farr; William M. Folkner; Andre R. Girerd; Hamid Hemmati; Thomas W. Murphy, Jr.; James G. Williams; John J. Degnan

2010-03-25T23:59:59.000Z

76

Range Fuels | Open Energy Information  

Open Energy Info (EERE)

Fuels Fuels Jump to: navigation, search Logo: Range Fuels Name Range Fuels Address 11101 W. 120th Avenue Place Broomfield, Colorado Zip 80021 Sector Biomass Product Uses a thermochemical process to turn biomass into synthetic gas and then fuel Website http://www.rangefuels.com/ Coordinates 39.915572°, -105.122053° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.915572,"lon":-105.122053,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

77

Range gated strip proximity sensor  

DOE Patents (OSTI)

A range gated strip proximity sensor uses one set of sensor electronics and a distributed antenna or strip which extends along the perimeter to be sensed. A micro-power RF transmitter is coupled to the first end of the strip and transmits a sequence of RF pulses on the strip to produce a sensor field along the strip. A receiver is coupled to the second end of the strip, and generates a field reference signal in response to the sequence of pulse on the line combined with received electromagnetic energy from reflections in the field. The sensor signals comprise pulses of radio frequency signals having a duration of less than 10 nanoseconds, and a pulse repetition rate on the order of 1 to 10 MegaHertz or less. The duration of the radio frequency pulses is adjusted to control the range of the sensor. An RF detector feeds a filter capacitor in response to received pulses on the strip line to produce a field reference signal representing the average amplitude of the received pulses. When a received pulse is mixed with a received echo, the mixing causes a fluctuation in the amplitude of the field reference signal, providing a range-limited Doppler type signature of a field disturbance. 6 figs.

McEwan, T.E.

1996-12-03T23:59:59.000Z

78

Range gated strip proximity sensor  

DOE Patents (OSTI)

A range gated strip proximity sensor uses one set of sensor electronics and a distributed antenna or strip which extends along the perimeter to be sensed. A micro-power RF transmitter is coupled to the first end of the strip and transmits a sequence of RF pulses on the strip to produce a sensor field along the strip. A receiver is coupled to the second end of the strip, and generates a field reference signal in response to the sequence of pulse on the line combined with received electromagnetic energy from reflections in the field. The sensor signals comprise pulses of radio frequency signals having a duration of less than 10 nanoseconds, and a pulse repetition rate on the order of 1 to 10 MegaHertz or less. The duration of the radio frequency pulses is adjusted to control the range of the sensor. An RF detector feeds a filter capacitor in response to received pulses on the strip line to produce a field reference signal representing the average amplitude of the received pulses. When a received pulse is mixed with a received echo, the mixing causes a fluctuation in the amplitude of the field reference signal, providing a range-limited Doppler type signature of a field disturbance.

McEwan, Thomas E. (Livermore, CA)

1996-01-01T23:59:59.000Z

79

Combination of evidence in recommendation systems characterized by distance functions  

SciTech Connect

Recommendation systems for different Document Networks (DN) such as the World Wide Web (WWW), Digitnl Libarries, or Scientific Databases, often make use of distance functions extracted from relationships among documents and between documents and semantic tags. For instance, documents In the WWW are related via a hyperlink network, while documents in bibliographic databases are related by citation and collaboration networks.Furthermore, documents can be related to semantic tags such as keywords used to describe their content, The distance functions computed from these relations establish associative networks among items of the DN, and allow recommendation systems to identify relevant associations for iudividoal users. The process of recommendation can be improved by integrating associative data from different sources. Thus we are presented with a problem of combining evidence (about assochaons between items) from different sonrces characterized by distance functions. In this paper we summarize our work on (1) inferring associations from semi-metric distance functions and (2) combining evidence from different (distance) associative DN.

Rocha, L. M. (Luis Mateus)

2002-01-01T23:59:59.000Z

80

FastMeasure Distance Measuring Tools | Open Energy Information  

Open Energy Info (EERE)

FastMeasure Distance Measuring Tools FastMeasure Distance Measuring Tools Jump to: navigation, search Logo: FastMeasure Distance Measuring Tools Name FastMeasure Distance Measuring Tools Address 2890 Cherokee Lane Place Riverwoods, Illinois Zip 60015 Sector Vehicles Product Distance Measuring Instrument Year founded 2008 Number of employees 11-50 Phone number (888) 876-6050 Website http://www.fast-measure.com Coordinates 42.181686°, -87.898862° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.181686,"lon":-87.898862,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "tp4 range distance" 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

CAKE Goes 'The Distance' with Solar | Department of Energy  

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

CAKE Goes 'The Distance' with Solar CAKE Goes 'The Distance' with Solar CAKE Goes 'The Distance' with Solar February 2, 2011 - 10:00am Addthis April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs CAKE. Whether it takes the form of cupcakes, birthday cake, the ever-popular cheesecake or even gluten-free - it unfailingly brightens up almost anyone's day. CAKE the band, however, has taken the sweetness to another level with their newest album Showroom of Compassion, which was produced using 100 percent solar energy. The group formed in 1991 and took the Northern California music scene by storm in the mid-nineties. Since then, they've become internationally renowned headliners. Earlier this month, CAKE released their sixth album, recorded in a studio in Sacramento powered entirely by solar power.

82

Short-distance contribution to the spectrum of Hawking radiation  

E-Print Network (OSTI)

The Hawking effect can be rederived in terms of two-point functions and in such a way that it makes it possible to estimate, within the conventional semiclassical theory, the contribution of ultrashort distances to the Planckian spectrum. For Schwarzschild black holes of three solar masses the analysis shows that Hawking radiation is very robust up to frequencies of 96 T_H or 270 T_H for bosons and fermions, respectively. For primordial black holes (with masses around 10^{15} g) these frequencies turn out to be of order 52T_H and 142 T_H. Only at these frequencies and above do we find that the contribution of Planck distances is of order of the total spectrum itself. Below this scale, the contribution of ultrashort distances to the spectrum is negligible. This suggests that only above these frequencies could an underlying quantum theory of gravity potentially predict significant deviations from Hawking's semiclassical result.

I. Agullo; J. Navarro-Salas; Gonzalo J. Olmo; Leonard Parker

2006-11-30T23:59:59.000Z

83

Shedding Some Light on RFID Distance Bounding Protocols and Terrorist Attacks  

E-Print Network (OSTI)

During the last years, researchers have focused on designing secure and efficient RFID authentication protocols. The vast majority of these protocols assume proximity between readers and tags due to the limited range of the radio channel. However, in real scenarios, an intruder can be located between the prover (tag) and the verifier (reader) and trick the latter into thinking that the prover is in close proximity. This attack is globally known as a relay attack, a kind that includes others such as distance fraud, mafia fraud and terrorist attacks. Distance bounding protocols represent a promising countermeasure to hinder relay attacks. Several protocols have been proposed in the last years, but vulnerabilities of major or minor relevance have been identified in all of them. In 2008, Kim et al. [10] proposed a new distance bounding protocol with the objective of being the best one in terms of security, privacy, tag computational overhead and fault tolerance - as claimed by their authors. The study of this rec...

Peris-Lopez, Pedro; Tapiador, J M E; van der Lubbe, Jan C A

2009-01-01T23:59:59.000Z

84

Shedding Light on RFID Distance Bounding Protocols and Terrorist Fraud Attacks  

E-Print Network (OSTI)

The vast majority of RFID authentication protocols assume the proximity between readers and tags due to the limited range of the radio channel. However, in real scenarios an intruder can be located between the prover (tag) and the verifier (reader) and trick this last one into thinking that the prover is in close proximity. This attack is generally known as a relay attack in which scope distance fraud, mafia fraud and terrorist attacks are included. Distance bounding protocols represent a promising countermeasure to hinder relay attacks. Several protocols have been proposed during the last years but vulnerabilities of major or minor relevance have been identified in most of them. In 2008, Kim et al. [18] proposed a new distance bounding protocol with the objective of being the best in terms of security, privacy, tag computational overhead and fault tolerance. In this paper, we analyze this protocol and we present a passive full disclosure attack, which allows an adversary to discover the long-term secret key of the tag. The presented attack is very relevant, since no security objectives are met in Kim et al.’s protocol. Then, design guidelines are introduced with the aim of facilitating protocol designers the stimulating task of designing secure and efficient schemes against relay attacks. Finally a new protocol, named Hitomi and inspired by [18], is designed conforming the guidelines proposed previously.

Pedro Peris-lopez; Julio C. Hern; Aikaterini Mitrokotsa; Juan M. E. Tapiador

2010-01-01T23:59:59.000Z

85

APS Long Range Operations Schedule  

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

3) 3) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2012-3 2013-1 2013-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5

86

APS Long Range Operations Schedule  

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

2) 2) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2011-3 2012-1 2012-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5

87

APS Long Range Operations Schedule  

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

1) 1) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2010-3 2011-1 2011-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5

88

Extended-range tiltable micromirror  

DOE Patents (OSTI)

A tiltable micromirror device is disclosed in which a micromirror is suspended by a progressive linkage with an electrostatic actuator (e.g. a vertical comb actuator or a capacitive plate electrostatic actuator) being located beneath the micromirror. The progressive linkage includes a pair of torsion springs which are connected together to operate similar to a four-bar linkage with spring joints. The progressive linkage provides a non-linear spring constant which can allow the micromirror to be tilted at any angle within its range substantially free from any electrostatic instability or hysteretic behavior.

Allen, James J. (Albuquerque, NM); Wiens, Gloria J. (Newberry, FL); Bronson, Jessica R. (Gainesville, FL)

2009-05-05T23:59:59.000Z

89

STOCK DEFINITION AND GEOGRAPHIC RANGE  

E-Print Network (OSTI)

Sperm whales are found throughout the world's oceans in deep waters to the edge of the ice at both poles (Leatherwood and Reeves 1983; Rice 1989; Whitehead 2002). Sperm whales throughout the world exhibit a geographic social structure where females and juveniles of both sexes occur in mixed groups and inhabit tropical and subtropical waters. Males, as they mature, initially form bachelor groups but eventually become more socially isolated and more wide-ranging, inhabiting temperate and polar waters as well (Whitehead 2003). Sperm whales were commercially hunted in the Caribbean Sea by American whalers from sailing vessels until the early 1900s

Puerto Rico; U. S. Virgin Isl; S Stock

2010-01-01T23:59:59.000Z

90

Creating a Virtual HVAC Laboratory for Continuing/Distance Education  

E-Print Network (OSTI)

Facilities engineering is one technical field where lab-based continuing education programs can be delivered in a distance learning format. The widespread use of computer controls for optimizing the efficiency of a building's mechanical and electrical systems has made the "distance" element possible. Rather than traveling to individual buildings to make pressure, temperature, and flow measurements in person, facility engineers routinely access performance data over the Internet. This networking capability has been used in an educational setting to deliver interactive technical training to large numbers of undergraduate students and professional facilities engineers. Many students can access real time data from a single piece of HVAC equipment over the Internet.

William J. Hutzel

2001-01-01T23:59:59.000Z

91

Levenshtein Distance Technique in Dictionary Lookup Methods: An Improved Approach  

E-Print Network (OSTI)

Dictionary lookup methods are popular in dealing with ambiguous letters which were not recognized by Optical Character Readers. However, a robust dictionary lookup method can be complex as apriori probability calculation or a large dictionary size increases the overhead and the cost of searching. In this context, Levenshtein distance is a simple metric which can be an effective string approximation tool. After observing the effectiveness of this method, an improvement has been made to this method by grouping some similar looking alphabets and reducing the weighted difference among members of the same group. The results showed marked improvement over the traditional Levenshtein distance technique.

Haldar, Rishin

2011-01-01T23:59:59.000Z

92

Live Fire Range Environmental Assessment  

SciTech Connect

The Central Training Academy (CTA) is a DOE Headquarters Organization located in Albuquerque, New Mexico, with the mission to effectively and efficiently educate and train personnel involved in the protection of vital national security interests of DOE. The CTA Live Fire Range (LFR), where most of the firearms and tactical training occurs, is a complex separate from the main campus. The purpose of the proposed action is to expand the LFR to allow more options of implementing required training. The Department of Energy has prepared this Environmental Assessment (EA) for the proposed construction and operation of an expanded Live Fire Range Facility at the Central Training Academy in Albuquerque, New Mexico. Based on the analysis in the EA, DOE has determined that the proposed action is not a major Federal action significantly affecting the quality of the human environment, within the meaning of the National Environmental Policy Act (NEPA) of 1969. Therefore, the preparation of an environmental impact statement is not required and DOE is issuing this Finding of No Significant Impact (FONSI).

None

1993-08-01T23:59:59.000Z

93

Evidence against correlations between nuclear decay rates and Earth-Sun distance  

E-Print Network (OSTI)

distance of the source to the Sun. This work was supportedNuclear Decay Rates and Earth-Sun Distance Eric B. Normanand 241 Am and the Earth-Sun distance. We find no evidence

Norman, Eric B.

2009-01-01T23:59:59.000Z

94

Auctions by price and distance via cellular phones  

Science Conference Proceedings (OSTI)

We consider e-commerce auctions via cellular phones in which the winner is selected based on two factors: the requested price and the promise to provide a service on time. The auctioneer can verify that the bidder intends to provide the service by tracking ... Keywords: Auctions, Cellular, Distance, Electronic commerce, Multi-attribute, Simulation, Strategies

Yosi Ben Asher; Mohsen Abu Saleh

2011-03-01T23:59:59.000Z

95

A proposal for detecting hidden explosives to high distance  

Science Conference Proceedings (OSTI)

In this paper author describes a proposal for an apparatus utilising o nuclear physics techniques to identify hidden explosives to a distance of several tenth of meters. The apparatus uses a modified PFNA (Pulsed Fast neutron Analysis) with the gamma ... Keywords: application of nuclear physics, electronic instrumentation, explosives detection, security apparatus

Carlo Artemi

2008-07-01T23:59:59.000Z

96

Weighted Distance Transforms for Images Using Elongated Voxel Grids  

Science Conference Proceedings (OSTI)

In this paper we investigate weighted distance transforms in 3D images using elongated voxel grids. We use a local neighbourhood of size 3 × 3 × 3 and assume a voxel grid with equal resolution along two axes and lower along the third. The weights (local ...

Ida-Maria Sintorn; Gunilla Borgefors

2002-04-01T23:59:59.000Z

97

Computing the Edit-Distance between Unrooted Ordered Trees  

Science Conference Proceedings (OSTI)

An ordered tree is a tree in which each node's incident edges are cyclically ordered; think of the tree as being embedded in the plane. Let A and B be two ordered trees. The edit distance between A and B is the minimum cost ...

Philip N. Klein

1998-08-01T23:59:59.000Z

98

UHF measurement of breathing and heartbeat at a distance  

Science Conference Proceedings (OSTI)

The detection of breathing and heartbeat from a distance is important for medical triage and mass casualty events as well as routine monitoring of higher-risk patients. Typical approaches include wiring up patients to devices and wearable devices, but ... Keywords: UHF, breathing, heartbeat, radar

Jerry Silvious; David Tahmoush

2010-01-01T23:59:59.000Z

99

Move-to-Front, Distance Coding, and Inversion Frequencies revisited  

Science Conference Proceedings (OSTI)

Move-to-Front, Distance Coding and Inversion Frequencies are three simple and effective techniques used to process the output of the Burrows-Wheeler Transform. In this paper we provide the first complete comparative analyses of these techniques, establishing ... Keywords: Burrows-Wheeler Transform, Data Compression, Empirical entropy

Travis Gagie; Giovanni Manzini

2010-06-01T23:59:59.000Z

100

Free Energy Surfaces from Single-Distance Information Philipp Schuetz,  

E-Print Network (OSTI)

Free Energy Surfaces from Single-Distance Information Philipp Schuetz, Rene´ Wuttke, Benjamin We propose a network-based method for determining basins and barriers of complex free energy surfaces for the iterative determination of individual basins by the minimum-cut-based free energy profile, a barrier

Caflisch, Amedeo

Note: This page contains sample records for the topic "tp4 range distance" 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

Distance between quantum states in the presence of initial qubit-environment correlations: A comparative study  

Science Conference Proceedings (OSTI)

The time evolution of the trace distance between two states of an open quantum system may increase due to initial system-environment correlations, thus exhibiting a breakdown of distance contractivity of the reduced dynamics. We analyze how the time evolution of the distance depends on the chosen distance measure. Here we elucidate the behavior of the trace distance, the Hilbert-Schmidt distance, the Bures distance, the Hellinger distance, and the quantum Jensen-Shannon divergence for two system-environment setups, namely a qubit bilinearly coupled to an infinite and a finite-size environment with the latter composed of harmonic oscillators.

Dajka, Jerzy; Luczka, Jerzy; Haenggi, Peter [Institute of Physics, University of Silesia, 40-007 Katowice (Poland); Institute of Physics, University of Augsburg, D-86135 Augsburg (Germany)

2011-09-15T23:59:59.000Z

102

Wide-range radioactive-gas-concentration detector  

DOE Patents (OSTI)

A wide-range radioactive-gas-concentration detector and monitor capable of measuring radioactive-gas concentrations over a range of eight orders of magnitude is described. The device is designed to have an ionization chamber sufficiently small to give a fast response time for measuring radioactive gases but sufficiently large to provide accurate readings at low concentration levels. Closely spaced parallel-plate grids provide a uniform electric field in the active region to improve the accuracy of measurements and reduce ion migration time so as to virtually eliminate errors due to ion recombination. The parallel-plate grids are fabricated with a minimal surface area to reduce the effects of contamination resulting from absorption of contaminating materials on the surface of the grids. Additionally, the ionization-chamber wall is spaced a sufficient distance from the active region of the ionization chamber to minimize contamination effects.

Anderson, D.F.

1981-11-16T23:59:59.000Z

103

COPIES: Iron Range Legislative Delegation  

E-Print Network (OSTI)

Dear Legislators: We are pleased to present the annual report on our research regarding the health status of taconite workers and Iron Range community air quality. This report, as in the past, details the progress made by the University of Minnesota School of Public Health and the Natural Resources Research Institute (NRRI) in all research areas, including occupational exposure, mortality and incidence studies, the respiratory health survey of taconite workers and spouses and the environmental study of airborne particles. In addition, this report contains specific information regarding the assessment of mesothelioma as it pertains to exposure to mineral fibers, referred to as elongate mineral particles (EMP). For this report, the EMP measurement is a standard technique that identifies those fibers (EMP) considered long (over 5 microns). Although the research team felt this was the most important exposure to be assessed with the cases of mesothelioma, in the next several months there will be additional analyses that may provide further insight, including exposure to short EMP, silica and respirable dust. A final report is planned for the end of the year when all components are expected to be completed.

Sen Tony Lourey; Rep Tim Mahoney; Rep Sheldon Johnson; Rep David Dill; Rep Mary Murphy; Sen Tom Bakk; Rep John Persell; Rep Tom Anzelc; Sen Tom Saxhaug; Rep Carly Melin; Rep Jason Metsa

2013-01-01T23:59:59.000Z

104

Improving accuracy for range-based localization in multiple target wireless sensor networks  

Science Conference Proceedings (OSTI)

We introduce a system for multiple target range-based localization systems, such as those based on time-of-arrival (TOA) and received signal strength indicator (RSSI) for distance measurement estimations. In order to improve the accuracy of the location ...

Oscar Rodríguez; Tomoaki Ohtsuki

2011-01-01T23:59:59.000Z

105

Face recognition based on 3D ridge images obtained from range data  

Science Conference Proceedings (OSTI)

In this paper, we present an approach for 3D face recognition from frontal range data based on the ridge lines on the surface of the face. We use the principal curvature, k"m"a"x, to represent the face image as a 3D binary image called ridge image. The ... Keywords: 3D face recognition, Gaussian curvature, Hausdorff distance, Iterative closest points, Range image, Ridge image

Mohammad H. Mahoor; Mohamed Abdel-Mottaleb

2009-03-01T23:59:59.000Z

106

Luminosity distance and redshift in the Szekeres inhomogeneous cosmological models  

E-Print Network (OSTI)

The Szekeres inhomogeneous models can be used to model the true lumpy universe that we observe. This family of exact solutions to Einstein's equations was originally derived with a general metric that has no symmetries. In this work, we develop and use a framework to integrate the angular diameter and luminosity distances in the general Szekeres models. We use the affine null geodesic equations in order to derive a set of first-order ordinary differential equations that can be integrated numerically to calculate the partial derivatives of the null vector components. These equations allow the integration in all generality of the distances in the Szekeres models and some examples are given. The redshift is determined from simultaneous integration of the null geodesic equations. This work does not assume spherical or axial symmetry, and the results will be useful for comparisons of the general Szekeres inhomogeneous models to current and future cosmological data.

Anthony Nwankwo; Mustapha Ishak; John Thompson

2010-05-17T23:59:59.000Z

107

Weighted distance transforms generalized to modules and their computation on point lattices  

Science Conference Proceedings (OSTI)

This paper presents the generalization of weighted distances to modules and their computation through the chamfer algorithm on general point lattices. The first part is dedicated to formalization of definitions and properties (distance, metric, norm) ... Keywords: Chamfer algorithm, Distance transform, Non-standard grids, Weighted distance

Céline Fouard; Robin Strand; Gunilla Borgefors

2007-09-01T23:59:59.000Z

108

Help:Range blocks | Open Energy Information  

Open Energy Info (EERE)

Range blocks Jump to: navigation, search Range blocks are technical restrictions applied through Special:Blockip to a group of IP addresses that prevent them from editing, creating...

109

Shedding Some Light on RFID Distance Bounding Protocols and Terrorist Attacks  

E-Print Network (OSTI)

During the last years, researchers have focused on designing secure and efficient RFID authentication protocols. The vast majority of these protocols assume proximity between readers and tags due to the limited range of the radio channel. However, in real scenarios, an intruder can be located between the prover (tag) and the verifier (reader) and trick the latter into thinking that the prover is in close proximity. This attack is globally known as a relay attack, a kind that includes others such as distance fraud, mafia fraud and terrorist attacks. Distance bounding protocols represent a promising countermeasure to hinder relay attacks. Several protocols have been proposed in the last years, but vulnerabilities of major or minor relevance have been identified in all of them. In 2008, Kim et al. [10] proposed a new distance bounding protocol with the objective of being the best one in terms of security, privacy, tag computational overhead and fault tolerance- as claimed by their authors. The study of this recent protocol is the main subject of this paper. We present a passive full disclosure attack which allows an adversary-listening the public messages exchanged on the channel- to discover the long-term secret key of the tag. The presented attack is very relevant as it implies that none of the protocol security objectives are guaranteed. Additionally, we also show that the probability of a successful mafia fraud attack against the Reid et al. protocol [16] is bounded by (3/4) n and not by (7/8) n as Piramuthu states in [15].

unknown authors

2009-01-01T23:59:59.000Z

110

Low-Energy Nuclear Reactions of Protons in Host Metals at Picometre Distance  

Science Conference Proceedings (OSTI)

A review is given for the explanation of the measurements of Miley et al. of a fully reproducible generation of nuclei of the whole periodic table by protons in host metals during a several-weeks reaction. Similar low-energy nuclear reactions (LENR) were observed by other groups. The fact that the heavy nuclides are not due to pollution can be seen from the fact that such very rare elements as thulium and terbium were detected by unique K-shell X-ray spectra. The nuclear reaction energy goes into the heavy nuclei as measured from much bigger traces in CR39 than from alphas. The fact that any reaction of the protons results in stable daughter nuclei is confirmed by the fact that the highest energy gain is resulting with stable reaction products. This has been explained in Ref. 2, and the energy gain for the heavy element generation by a compound reaction was discussed. The explanation is based on the model of the authors from 1989 to assume free motion of the protons contrary to localized crystalline states. A relation of the reaction time U on distance d of the reacting nuclei by a power law with an exponent 34.8 was derived. Based on few reproducible D-D reactions, a reaction time near the range of megaseconds and a reaction distance of nanometers was concluded. A splendid confirmation of the picometre-megasecond reactions was achieved by Li et al. from his direct quantum mechanical calculations of the hot fusion D-T reactions based on a one-step selective resonance tunneling model. Li et al. were able for the first time to derive the cross sections of the hot fusion. Li's application to picometre distance showed megasecond reaction times with no neutron or gamma emission. Because of the imaginary part in the Schroedinger potential, the problem of the level width is reduced by damping.

Heinrich Hora; George H. Miley; Jak C. Kelly

2000-11-12T23:59:59.000Z

111

Dynamic Rotor Deformation and Vibration Monitoring Using a Non-Incremental Laser Doppler Distance Sensor  

Science Conference Proceedings (OSTI)

Monitoring rotor deformations and vibrations dynamically is an important task for improving the safety and the lifetime as well as the energy efficiency of motors and turbo machines. However, due to the high rotor speed encountered in particular at turbo machines, this requires concurrently a high measurement rate and high accuracy, which can not be fulfilled by most commercially available sensors. To solve this problem, we developed a non-incremental laser Doppler distance sensor (LDDS), which is able to measure simultaneously the in-plane velocity and the out-of-plane position of moving rough solid objects with micrometer precision. In addition, this sensor concurrently offers a high temporal resolution in the microsecond range, because its position uncertainty is in principle independent of the object velocity in contrast to conventional distance sensors, which is a unique feature of the LDDS. Consequently, this novel sensor enables precise and dynamic in-process deformation and vibration measurements on rotating objects, such as turbo machine rotors, even at very high speed. In order to evidence the capability of the LDDS, measurements of rotor deformations (radial expansion), vibrations and wobbling motions are presented at up to 50,000 rpm rotor speed.

Pfister, Thorsten; Guenther, Philipp; Dreier, Florian; Czarske, Juergen [Technische Universitaet Dresden, Faculty of Electrical Engineering and Information Technology, Laboratory for Measurement and Testing Techniques, Helmholtzstrasse 18, D-01062 Dresden (Germany)

2010-05-28T23:59:59.000Z

112

High speed, long distance, data transmission multiplexing circuit  

DOE Patents (OSTI)

A high speed serial data transmission multiplexing circuit, which is operable to accurately transmit data over long distances (up to 3 Km), and to multiplex, select and continuously display real time analog signals in a bandwidth from DC to 100 Khz. The circuit is made fault tolerant by use of a programmable flywheel algorithm, which enables the circuit to tolerate one transmission error before losing synchronization of the transmitted frames of data. A method of encoding and framing captured and transmitted data is used which has a low overhead and prevents some particular transmitted data patterns from locking an included detector/decoder circuit.

Mariotti, Razvan (Boulder, CO)

1991-01-01T23:59:59.000Z

113

A high speed, long distance, data transmission multiplexing circuit  

DOE Patents (OSTI)

A high speed serial data transmission multiplexing circuit, which is operable to accurately transmit data over long distances (up to 3 Km), and to multiplex, select and continuously display real time analog signals in a bandwidth from DC to 100Khz. The circuit is made fault tolerant by use of a programmable flywheel algorithm, which enables the circuit to tolerate one transmission error before losing synchronization of the transmitted frames of data. A method of encoding and framing captured and transmitted data is used which has a low overhead and prevents some particular transmitted data patterns from locking an included detector/decoder circuit. 9 figs.

Mariotti, R.

1990-01-30T23:59:59.000Z

114

Electrically Dressed Ultralong-Range Polar Rydberg Molecules  

E-Print Network (OSTI)

We investigate the impact of an electric field on the structure of ultralong-range polar diatomic Rydberg molecules. Both the s-wave and p-wave interactions of the Rydberg electron and the neutral ground state atom are taken into account. In the presence of the electric field the angular degree of freedom between the electric field and the internuclear axis acquires vibrational character and we encounter two-dimensional oscillatory adiabatic potential energy surfaces with an antiparallel equilibrium configuration. The electric field allows to shift the corresponding potential wells in such a manner that the importance of the p-wave interaction can be controlled and the individual wells are energetically lowered at different rates. As a consequence the equilibrium configuration and corresponding energetically lowest well move to larger internuclear distances for increasing field strength. For strong fields the admixture of non-polar molecular Rydberg states leads to the possibility of exciting the large angula...

Kurz, Markus

2013-01-01T23:59:59.000Z

115

A comparison of standard evasion scenarios at near regional distances  

SciTech Connect

We performed numerical simulations of three nuclear testing evasion scenarios. These calculations were done in two parts. The first part was done near source (within 10 km) with a non-linear weapons effects code. Particle velocity histories from the non-linear code were linked to an elastic linear finite-difference code for the second part. Seismic waveforms from the evasion scenario calculations were compared with the waveforms for a non-evasive explosion calculation at near regional distances. The results of this comparison suggest that it may be important to include realistic stratigraphy in such simulations: the overall wave amplitude in the present simulations is reduced by only a factor of 3-5 in contradiction to factors of 20-100 in {open_quotes}classical{close_quotes} decoupling analyses for ideal (i.e., unlayered) media. Two of the evasion scenarios simulated retain explosive waveform characteristics at near regional distances, while the third scenario indicates that certain source geometries might lead to more non-explosive (i.e., earthquake-like) seismic signals.

Bos, R.; App, F.; Jones, E.; Dey, T.; Kamm, J.

1997-01-01T23:59:59.000Z

116

Ultra-wideband radios for time-of-flight-ranging and network position estimation  

DOE Patents (OSTI)

This invention provides a novel high-accuracy indoor ranging device that uses ultra-wideband (UWB) RF pulsing with low-power and low-cost electronics. A unique of the present invention is that it exploits multiple measurements in time and space for very accurate ranging. The wideband radio signals utilized herein are particularly suited to ranging in harsh RF environments because they allow signal reconstruction in spite of multipath propagation distortion. Furthermore, the ranging and positioning techniques discussed herein directly address many of the known technical challenges encountered in UWB localization regarding synchronization and sampling. In the method developed, noisy, corrupted signals can be recovered by repeating range measurements across a channel, and the distance measurements are combined from many locations surrounding the target in a way that minimizes the range biases associated to indirect flight paths and through-wall propagation delays.

Hertzog, Claudia A. (Houston, TX); Dowla, Farid U. (Castro Valley, CA); Dallum, Gregory E. (Livermore, CA); Romero, Carlos E. (Livermore, CA)

2011-06-14T23:59:59.000Z

117

Obtaining oblique technique source-to-skin distances for irregular field (Clarkson) calculations: The Mayo Off-axis Distance Indicator  

Science Conference Proceedings (OSTI)

Significant dose inhomogeneities may exist between the supraclavicular fossa (SCF) and the internal mammary chain (IMC) regions in the irregular L-shaped (hockey stick) field associated with breast cancer treatments. This dose inhomogeneity exists, in part, because of a positive air gap in the SCF and a negative air gap in the IMC locations. Independent of treatment technique, (i.e., whether anterior-posterior (AP) or oblique fields are used), accurate source-to-skin distance (SSD) values for the SCF, IMC, and axilla are necessary when doing an irregular field (Clarkson) dose calculation. However, when an oblique technique is used to treat the hockey stick field, obtaining non-central-axis SSDs is not as straightforward as when an AP technique is employed. The Mayo Off-axis Distance Indicator was constructed to slide into the blocking tray slot of the simulator or treatment machine. This mechanical measuring device provides quick and accurate SSD measurements for non-central-axis points under either AP or, more importantly, oblique treatment conditions.

Lajoie, W.N. (Mayo Medical Center, Rochester, MN (USA))

1988-09-01T23:59:59.000Z

118

Medium- and Long-Range Forecasting  

Science Conference Proceedings (OSTI)

In contrast to short and extended range forecasts, predictions for periods beyond 5 days use time-averaged, midtropospheric height fields as their primary guidance. As time ranges are increased to 3O- and 90-day outlooks, guidance increasingly ...

A. James Wagner

1989-09-01T23:59:59.000Z

119

Imaging the Solar Tachocline by Time-Distance Helioseismology  

E-Print Network (OSTI)

The solar tachocline at the bottom of the convection zone is an important region for the dynamics of the Sun and the solar dynamo. In this region, the sound speed inferred by global helioseismology exhibits a bump of approximately 0.4% relative to the standard solar model. Global helioseismology does not provide any information on possible latitudinal variations or asymmetries between the Northern and Southern hemisphere. Here, we develop a time-distance helioseismology technique, including surface- and deep-focusing measurement schemes and a combination of both, for two-dimensional tomographic imaging of the solar tachocline that infers radial and latitudinal variations in the sound speed. We test the technique using artificial solar oscillation data obtained from numerical simulations. The technique successfully recovers major features of the simplified tachocline models. The technique is then applied to SOHO/MDI medium-l data and provides for the first time a full two-dimensional sound-speed perturbation i...

Zhao, Junwei; Kosovichev, A G; Mansour, N N

2009-01-01T23:59:59.000Z

120

Answer extraction as sequence tagging with tree edit distance  

E-Print Network (OSTI)

Our goal is to extract answers from preretrieved sentences for Question Answering (QA). We construct a linear-chain Conditional Random Field based on pairs of questions and their possible answer sentences, learning the association between questions and answer types. This casts answer extraction as an answer sequence tagging problem for the first time, where knowledge of shared structure between question and source sentence is incorporated through features based on Tree Edit Distance (TED). Our model is free of manually created question and answer templates, fast to run (processing 200 QA pairs per second excluding parsing time), and yields an F1 of 63.3 % on a new public dataset based on prior TREC QA evaluations. The developed system is open-source, and includes an implementation of the TED model that is state of the art in the task of ranking QA pairs. 1

Xuchen Yao; Benjamin Van Durme; Chris Callison-burch; Peter Clark

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tp4 range distance" 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

DOE Solar Decathlon: Tuskegee University: Going the Distance  

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

Tuskegee University house on the National Mall in Washington, D.C., during Solar Decathlon 2002. Tuskegee University house on the National Mall in Washington, D.C., during Solar Decathlon 2002. Enlarge image The Tuskegee Solar Decathlon team got its inspiration from traditional Southern architecture, which relies on passive cooling strategies such as the dogtrot, a central shaded breezeway that runs through the house. (Credit: Paul Norton/U.S. Department of Energy Solar Decathlon) Who: Tuskegee University What: Solar house Where: Tuskegee University 1200 W. Montgomery Road Tuskegee, AL 36088 Map This House Public tours: Not available Solar Decathlon 2002 Tuskegee University: Going the Distance Tuskegee University students successfully overcame funding and time limitations to make the trip to Washington, D.C., for the U.S. Department of Energy Solar Decathlon 2002. Now, with time back on its side, the

122

Drones, information technology, and distance: mapping the moral epistemology of remote fighting  

Science Conference Proceedings (OSTI)

Ethical reflection on drone fighting suggests that this practice does not only create physical distance, but also moral distance: far removed from one's opponent, it becomes easier to kill. This paper discusses this thesis, frames it as a moral-epistemological ... Keywords: Distance, Drones, Ethics, Information technology, Military robotics, Phenomenology

Mark Coeckelbergh

2013-06-01T23:59:59.000Z

123

Improvement of the disc harmonic moments descriptor by an exponentially decaying distance transform  

Science Conference Proceedings (OSTI)

The authors propose an improvement of a recent region-based shape descriptor inspired by the 3D spherical harmonics: the Disk Harmonic Moments Descriptor (DHMD). The binary image is weighted by an exponentially decaying distance transform (EDDT) before ... Keywords: content-based image, distance transform, legendre polynomials, region-based shape descriptor, retrieval, salience distance transform, spherical harmonics

Noureddine Ennahnahi; Mohammed Oumsis; Mohammed Meknassi

2010-08-01T23:59:59.000Z

124

Adaptive feedback generation to support teachers in web-based distance education  

Science Conference Proceedings (OSTI)

This work examines the application of user-adapted technologies to address problems experienced in web-based distance education. We have proposed an approach to support distance learning instructors by offering advice that points at problems faced by ... Keywords: (Semi-)automatic advice generation, Distance learning, Empirical evaluation, Intelligent course management systems, Personalised feedback, Teacher support/help

Essam Kosba; Vania Dimitrova; Roger Boyle

2007-09-01T23:59:59.000Z

125

A Stochastic/Perturbation Global Optimization Algorithm for Distance Geometry Problems  

Science Conference Proceedings (OSTI)

We present a new global optimization approach for solving exactly or inexactly constrained distance geometry problems. Distance geometry problems are concerned with determining spatial structures from measurements of internal distances. They arise ... Keywords: Lennard-Jones cluster, Molecular conformation, global optimization

Zhihong Zou; Richard H. Bird; Robert B. Schnabel

1997-07-01T23:59:59.000Z

126

A wavelet-tree-based watermarking method using distance vector of binary cluster  

Science Conference Proceedings (OSTI)

This paper proposes a wavelet-tree-based watermarking method using distance vector of binary cluster for copyright protection. In the proposed method, wavelet trees are classified into two clusters using the distance vector to denote binary watermark ... Keywords: Blind watermarking method, Copyright protection, Distance vector, Significant coefficient, Watermark, Wavelet tree

Wei-Hung Lin; Yuh-Rau Wang; Shi-Jinn Horng

2009-08-01T23:59:59.000Z

127

The influence of animal mobility on the assumption of uniform distances in aerial line transect surveys  

E-Print Network (OSTI)

for estimating animal density from aerial surveys. Analysis of line transect distance data usually relies test evidence for non- uniformity using double-observer distance data from two aerial surveys of five in Queensland. Key words: aerial surveys, double platform distance sampling, independent observers, responsive

Buckland, Steve

128

Battery Electric Vehicles: Range Optimization and Diversification for the U.S. Drivers  

DOE Green Energy (OSTI)

Properly selecting the driving range is critical for accurately predicting the market acceptance and the resulting social benefits of BEVs. Analysis of transportation technology transition could be biased against battery electric vehicles (BEV) and mislead policy making, if BEVs are not represented with optimal ranges. This study proposes a coherent method to optimize the BEV driving range by minimizing the range-related cost, which is formulated as a function of range, battery cost, energy prices, charging frequency, access to backup vehicles, and the cost and refueling hassle of operating the backup vehicle. This method is implemented with a sample of 36,664 drivers, representing U.S. new car drivers, based on the 2009 National Household Travel Survey data. Key findings are: 1) Assuming the near term (2015) battery cost at $405/kWh, about 98% of the sampled drivers are predicted to prefer a range below 200 miles, and about 70% below 100 miles. The most popular 20-mile band of range is 57 to77 miles, unsurprisingly encompassing the Leaf s EPA-certified 73-mile range. With range limited to 4 or 7 discrete options, the majority are predicted to choose a range below 100 miles. 2) Found as a statistically robust rule of thumb, the BEV optimal range is approximately 0.6% of one s annual driving distance. 3) Reducing battery costs could motivate demand for larger range, but improving public charging may cause the opposite. 4) Using a single range to represent BEVs in analysis could significantly underestimate their competitiveness e.g. by $3226/vehicle if BEVs are represented with 73-mile range only or by $7404/BEV if with 150-mile range only. Range optimization and diversification into 4 or 7 range options reduce such analytical bias by 78% or 90%, respectively.

Lin, Zhenhong [ORNL

2012-01-01T23:59:59.000Z

129

NREL Reveals Links Among Climate Control, Battery Life, and Electric Vehicle Range (Fact Sheet)  

DOE Green Energy (OSTI)

Researchers at the National Renewable Energy Laboratory (NREL) are providing new insights into the relationships between the climate-control systems of plug-in electric vehicles and the distances these vehicles can travel on a single charge. In particular, NREL research has determined that 'preconditioning' a vehicle-achieving a comfortable cabin temperature and preheating or precooling the battery while the vehicle is still plugged in-can extend its driving range and improve battery life over the long term.

Not Available

2012-06-01T23:59:59.000Z

130

Asymptotic behavior of the gyration radius for long-range self-avoiding walk and long-range oriented percolation  

E-Print Network (OSTI)

We consider random walk and self-avoiding walk whose 1-step distribution is given by $D$, and oriented percolation whose bond-occupation probability is proportional to $D$. Suppose that $D(x)$ decays as $|x|^{-d-\\alpha}$ with $\\alpha>0$. For random walk in any dimension $d$ and for self-avoiding walk and critical/subcritical oriented percolation above the common upper-critical dimension $d_{\\mathrm{c}}\\equiv2(\\alpha\\wedge2)$, we prove large-$t$ asymptotics of the gyration radius, which is the average end-to-end distance of random walk/self-avoiding walk of length $t$ or the average spatial size of an oriented percolation cluster at time $t$. This proves the conjecture for long-range self-avoiding walk in [Ann. Inst. H. Poincar\\'{e} Probab. Statist. (2010), to appear] and for long-range oriented percolation in [Probab. Theory Related Fields 142 (2008) 151--188] and [Probab. Theory Related Fields 145 (2009) 435--458].

Lung-Chi Chen; Akira Sakai

2010-02-04T23:59:59.000Z

131

PowerPlex Fusion Product Size Ranges  

Science Conference Proceedings (OSTI)

The schematic diagram illustrates the fluorescent dye label color and relative PCR product size ranges for the various STR loci present in this ...

2012-12-03T23:59:59.000Z

132

HY RID WIDE RANGE TRANSIMPEDAN E AMPLIFIER  

TRANSIMPEDAN E AMPLIFIER TE HNOLOGY SUMMARY Many applications require wide range detection, where detector current is converted to a voltage by a

133

Physics Out Loud - Short-range Correlations  

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

Quantum Chromodynamics (QCD) Previous Video (Quantum Chromodynamics (QCD)) Physics Out Loud Main Index Next Video (SRF Accelerator Cavities) SRF Accelerator Cavities Short-range...

134

THE INFRARED LIGHT CURVE OF SN 2011fe IN M101 AND THE DISTANCE TO M101  

SciTech Connect

We present near-infrared light curves of supernova (SN) 2011fe in M101, including 34 epochs in H band starting 14 days before maximum brightness in the B band. The light curve data were obtained with the WIYN High-Resolution Infrared Camera. When the data are calibrated using templates of other Type Ia SNe, we derive an apparent H-band magnitude at the epoch of B-band maximum of 10.85 {+-} 0.04. This implies a distance modulus for M101 that ranges from 28.86 to 29.17 mag, depending on which absolute calibration for Type Ia SNe is used.

Matheson, T.; Joyce, R. R.; Allen, L. E.; Saha, A.; Silva, D. R.; Binkert, W. S.; Butler, K.; Everett, M. [National Optical Astronomy Observatory, 950 North Cherry Avenue, Tucson, AZ 85719 (United States); Wood-Vasey, W. M. [Pittsburgh Particle Physics, Astrophysics, and Cosmology Center (PITT-PACC), University of Pittsburgh, 3941 O'Hara Street, Pittsburgh, PA 15260 (United States); Adams, J. J. [Observatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); Anderson, R. E.; Beck, T. L. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Bentz, M. C. [Department of Physics and Astronomy, Georgia State University, Astronomy Offices, One Park Place South SE, Suite 700, Atlanta, GA 30303 (United States); Bershady, M. A.; Eigenbrot, A.; Gallagher, J. S. [Department of Astronomy, University of Wisconsin-Madison, 475 North Charter Street, Madison, WI 53706 (United States); Camarata, M. A. [Department of Physics, Southern Connecticut State University, 501 Crescent Street, New Haven, CT 06515 (United States); Garnavich, P. M. [Department of Physics, University of Notre Dame, Notre Dame, IN 46556 (United States); Glikman, E. [Department of Astronomy, Yale University, New Haven, CT 06511 (United States); Harbeck, D., E-mail: matheson@noao.edu [WIYN Observatory, 950 North Cherry Avenue, Tucson, AZ 85719 (United States); and others

2012-07-20T23:59:59.000Z

135

Recent progress on system studies for long distance power transmission  

SciTech Connect

Two possible applications of helium-cooled underground cables for power transmission were studied to determine network characteristics and estimated costs. The first involved power transmission at 345 kV from a Long Island nuclear power plant to a substation 43 miles away. The second appication examined the feasibility of a 350 mi-long 550 kV transmission line from Western Pennsylvania to Allentown and Philadelphia. For both systems computer simulations were used to study operating characteristics. A detailed cost analysis was made. The Long Island study concluded that helium-cooled cables were well suited for high-power transmission in a suburban area, that such a system using two trenches and separate refrigerator stations would be more reliable than a single trench system, and that cost could be optimized by using a less expensive cryogenic envelope. The Pennsylvania study showed that the helium-cooled cable was technically capable of performing as well as overhead power lines, but the cost of the underground cryogenic system is so much greater that such a system could not be economically justified for long distance transmission across open country-side. (LCL)

Forsyth, E B

1976-01-01T23:59:59.000Z

136

Adaptive Range Counting and Other Frequency-Based Range Query Problems.  

E-Print Network (OSTI)

??We consider variations of range searching in which, given a query range, our goal is to compute some function based on frequencies of points that… (more)

Wilkinson, Bryan T.

2012-01-01T23:59:59.000Z

137

Range search on multidimensional uncertain data  

Science Conference Proceedings (OSTI)

In an uncertain database, every object o is associated with a probability density function, which describes the likelihood that o appears at each position in a multidimensional workspace. This article studies two types of range retrieval ... Keywords: Uncertain databases, range search

Yufei Tao; Xiaokui Xiao; Reynold Cheng

2007-08-01T23:59:59.000Z

138

Comparison of Single-Fired and Delay-Fired Explosions at Regional and Local Distances,  

SciTech Connect

A wide range of blasting practices are utilized by the U.S. mining industry resulting in dramatically different local and regional seismic signatures. This variability in blasting and resulting seismograms suggests that no single discriminant may be appropriate for identifying this class of sources. A range of blasting styles are identified in this paper and the distinguishing characteristics at regional distances are determined. The blasting styles are quantified with the help of mining company records and close-in acoustic,seismic and video graphic data. The regional data consists of portable deployments of high frequency and broadband sensors as well as data from the International Monitoring System Primary Array at Pinedale, Wyoming. Critical to the success of this study is the comparison of regional data from the mining explosions to data from contained, single-fired explosions. Two types of single-fired explosions are utilized, the first a calibration explosion (8 vertical boreholes with 5,000 lbs of explosives each) fired simultaneous. The second, single-fired explosion consists of a number of boreholes detonated simultaneously in the mine for the purpose of pre-splitting the material (driving fractures between boreholes) prior to a large cast shot. Data from these explosions provide the basis for identifying the source signatures of the more typical delay-fired explosions. At high frequencies the single-fired and delay-fired explosions exhibit very similar waveforms at regional distances.Both event types show a high P/L{sub g} ratio at the highest frequencies with L{sub g} dominating at lower frequencies. Mining explosions that cast material show an enrichment in surface wave energy at relatively long periods of 4-12 seconds. Timing anomalies are identified in a high percentage of mining explosions designed to cast material. The accidental, simultaneous detonation of a number of boreholes has been observed in 2 of 9 carefully instrumented cast blasts. These produce regional waveforms that can have characteristics of a single-fired explosion. Spectral scalloping is observed from some delay-fired explosions while not from others. The existence of these characteristics is dependent on the exact delay pattern utilized. Data from a single- fired explosion allows the assessment of local receiver effects that might appear as a characteristic of delay-firing. 9 figs.

Stump, B.W., Pearson, D.C.

1997-12-31T23:59:59.000Z

139

Techniques for optically compressing light intensity ranges  

DOE Patents (OSTI)

A pin hole camera assembly for use in viewing an object having a relatively large light intensity range, for example a crucible containing molten uranium in an atomic vapor laser isotope separator (AVLIS) system is disclosed herein. The assembly includes means for optically compressing the light intensity range appearing at its input sufficient to make it receivable and decipherable by a standard video camera. A number of different means for compressing the intensity range are disclosed. These include the use of photogray glass, the use of a pair of interference filters, and the utilization of a new liquid crystal notch filter in combination with an interference filter.

Rushford, Michael C. (Livermore, CA)

1989-01-01T23:59:59.000Z

140

Techniques for optically compressing light intensity ranges  

DOE Patents (OSTI)

A pin hole camera assembly for use in viewing an object having a relatively large light intensity range, for example a crucible containing molten uranium in an atomic vapor laser isotope separator (AVLIS) system is disclosed herein. The assembly includes means for optically compressing the light intensity range appearing at its input sufficient to make it receivable and decipherable by a standard video camera. A number of different means for compressing the intensity range are disclosed. These include the use of photogray glass, the use of a pair of interference filters, and the utilization of a new liquid crystal notch filter in combination with an interference filter. 18 figs.

Rushford, M.C.

1989-03-28T23:59:59.000Z

Note: This page contains sample records for the topic "tp4 range distance" 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

DETERMINATION OF THE HELIOSPHERIC RADIAL MAGNETIC FIELD FROM THE STANDOFF DISTANCE OF A CME-DRIVEN SHOCK OBSERVED BY THE STEREO SPACECRAFT  

SciTech Connect

We report on the determination of radial magnetic field strength in the heliocentric distance range from 6 to 120 solar radii (R {sub Sun }) using data from Coronagraph 2 (COR2) and Heliospheric Imager I (HI1) instruments on board the Solar Terrestrial Relations Observatory spacecraft following the standoff-distance method of Gopalswamy and Yashiro. We measured the shock standoff distance of the 2008 April 5 coronal mass ejection (CME) and determined the flux-rope curvature by fitting the three-dimensional shape of the CME using the Graduated Cylindrical Shell model. The radial magnetic field strength is computed from the Alfven speed and the density of the ambient medium. We also compare the derived magnetic field strength with in situ measurements made by the Helios spacecraft, which measured the magnetic field at the heliocentric distance range from 60 to 215 R {sub Sun }. We found that the radial magnetic field strength decreases from 28 mG at 6 R {sub Sun} to 0.17 mG at 120 R {sub Sun }. In addition, we found that the radial profile can be described by a power law.

Poomvises, Watanachak; Gopalswamy, Nat; Yashiro, Seiji; Kwon, Ryun-Young [NASA GSFC, Greenbelt, MD 20771 (United States); Olmedo, Oscar [Space Science Division, U.S. Naval Research Laboratory, Washington, DC 20375 (United States)

2012-10-20T23:59:59.000Z

142

Iterative method to compute the Fermat points and Fermat distances of multiquarks  

E-Print Network (OSTI)

The multiquark confining potential is proportional to the total distance of the fundamental strings linking the quarks and antiquarks. We address the computation of the total string distance an of the Fermat points where the different strings meet. For a meson (quark-antiquark system) the distance is trivially the quark-antiquark distance. For a baryon (three quark system) the problem was solved geometrically from the onset, by Fermat and by Torricelli. The geometrical solution can be determined just with a rule and a compass, but translation of the geometrical solution to an analytical expression is not as trivial. For tetraquarks, pentaquarks, hexaquarks, etc, the geometrical solution is much more complicated. Here we provide an iterative method, converging fast to the correct Fermat points and the total distances, relevant for the multiquark potentials. We also review briefly the geometrical methods leading to the Fermat points and to the total distances.

P. Bicudo; M. Cardoso

2008-12-03T23:59:59.000Z

143

Long range interactions in nanoscale science  

E-Print Network (OSTI)

Our understanding of the “long range” electrodynamic, electrostatic, and polar interactions that dominate the organization of small objects at separations beyond an interatomic bond length is reviewed. From this basic-forces ...

Rajter, Richard F.

144

Factors affecting home range of mallard pairs  

SciTech Connect

Certain habitat and social factors were investigated for their effect on home range size of mallard (Anas platyhynchos) pairs breeding in a forested region of north-central Minnesota during the spring of 1971--72. Data from 31 radio-marked hens and drakes were used, but primary emphasis was placed on 8 pairs (5 with both members of the pair marked). Pairs were radio-tracked on river marsh areas, river channels, and large sand lakes to provide comparative data for evaluating home range size differences. Home ranges varied from an average of 53 ha for pairs using primarily river habitat to 871 ha for pairs using only large sand lakes. River and lake shorelines varied considerably in species and density of vegetation. Interaction between pairs as well as density of flocked males appeared to be influenced by these habitat differences with resultant effects on home range sizes.

Riechmann, J.H.

1976-06-01T23:59:59.000Z

145

Range resolution of unequal strength targets  

E-Print Network (OSTI)

This paper examines the problem of resolving targets whose amplitudes may differ. A common metric used for resolution that assumes targets of equal strength is modified for the subject scenario. An expression for range ...

Carlson, Blair D.

146

Underwater vehicle localization using range measurements  

E-Print Network (OSTI)

This thesis investigates the problem of cooperative navigation of autonomous marine vehicles using range-only acoustic measurements. We consider the use of a single maneuvering autonomous surface vehicle (ASV) to aid the ...

Papadopoulos, Ge?rgios

2010-01-01T23:59:59.000Z

147

Smart grid e PLC: TOA ranging.  

E-Print Network (OSTI)

??In questo lavoro vengono presentati alcuni standard PLC (PowerLine Communication) nell'ottica del loro utilizzo in applicazioni di ranging in piccole reti intelligenti (micro smart grid).… (more)

Danzi, Pietro

2012-01-01T23:59:59.000Z

148

Bounded-distance multi-clusterhead formation in wireless ad hoc networks  

Science Conference Proceedings (OSTI)

We present a clustering technique addressing redundancy for bounded-distance clusters, which means being able to determine the minimum number of cluster-heads per node, and the maximum distance from nodes to their cluster-heads. This problem is similar ... Keywords: (k,r)-dominating sets, Ad hoc networks, Clustering, Distance domination, Domination in graphs, Multi-core multicast protocols, Multicast protocols, Multiple domination

Marco Aurélio Spohn; J. J. Garcia-Luna-Aceves

2007-05-01T23:59:59.000Z

149

A NOTE ON THE DISTANCE SET PROBLEM IN THE PLANE THEMIS MITSIS  

E-Print Network (OSTI)

Abstract. We use a simple geometric-combinatorial argument to establish a quantitative relation between the generalized Hausdorff measure of a set and its distance set, extending a result originally due to Falconer. Let A be a subset of the plane. The distance set D(A) is defined as the set of all distances between points of A. Namely D(A) ={|x ? y | : x, y ? A}. It follows from the work of Falconer [2] (see also Mattila [3]) that 1

Communicated David Preiss

2001-01-01T23:59:59.000Z

150

Single-photon frequency upconversion for long-distance quantum teleportation and communication  

E-Print Network (OSTI)

Entanglement generation, single-photon detection, and frequency translation that preserves the polarization quantum state of the photons are essential technologies for long distance quantum communication protocols. This ...

Albot?, Marius A., 1974-

2006-01-01T23:59:59.000Z

151

Calibration of the distance scale from galactic Cepheids: I Calibration based on the GFG sample  

E-Print Network (OSTI)

New estimates of the distances of 36 nearby galaxies are presented based on accurate distances of galactic Cepheids obtained by Gieren, Fouque and Gomez (1998) from the geometrical Barnes-Evans method. The concept of 'sosie' is applied to extend the distance determination to extragalactic Cepheids without assuming the linearity of the PL relation. Doing so, the distance moduli are obtained in a straightforward way. The correction for extinction is made using two photometric bands (V and I) according to the principles introduced by Freedman and Madore (1990). Finally, the statistical bias due to the incompleteness of the sample is corrected according to the precepts introduced by Teerikorpi (1987) without introducing any free parameters (except the distance modulus itself in an iterative scheme). The final distance moduli depend on the adopted extinction ratio {R_V}/{R_I} and on the limiting apparent magnitude of the sample. A comparison with the distance moduli recently published by the Hubble Space Telescope Key Project (HSTKP) team reveals a fair agreement when the same ratio {R_V}/{R_I} is used but shows a small discrepancy at large distance. In order to bypass the uncertainty due to the metallicity effect it is suggested to consider only galaxies having nearly the same metallicity as the calibrating Cepheids (i.e. Solar metallicity). The internal uncertainty of the distances is about 0.1 magnitude but the total uncertainty may reach 0.3 magnitude.

G. Paturel; G. Theureau; P. Fouque; J. N. Terry; I. Musella; T. Ekholm

2002-01-21T23:59:59.000Z

152

Semi-supervised Learning with Density Based Distances Avleen S. Bijral  

E-Print Network (OSTI)

Semi-supervised Learning with Density Based Distances Avleen S. Bijral Toyota Technological Institute Chicago, IL 60637 Nathan Ratliff Google Inc. Pittsburg, PA 15206 Nati Srebro Toyota Technological

Srebro, Nathan

153

Long distance symmetries for nuclear forces and the similarity renormalization group  

Science Conference Proceedings (OSTI)

In this work we study the emergence of long distance symmetries for nuclear forces within the framework of the similarity renormalization group approach.

Szpigel, S. [Faculdade de Computacao e Informatica, Universidade Presbiteriana Mackenzie, 01302-907, Sao Paulo - SP (Brazil); Timoteo, V. S. [Faculdade de Tecnologia, Universidade Estadual de Campinas, 13484-332, Limeira - SP (Brazil); Arriola, E. R. [Departamento de Fisica Atomica, Molecular y Nuclear and Instituto Carlos I de Fisica Teorica y Computacional, Universidad de Granada, E-18071, Granada (Spain)

2013-03-25T23:59:59.000Z

154

The iBP algorithm for the discretizable molecular distance geometry ...  

E-Print Network (OSTI)

Jan 6, 2011 ... wireless sensors given some of the distances (estimated by monitoring the ..... this operation for all the amino acids forming a protein, then the ...

155

Range-gated imaging for near-field target identification  

Science Conference Proceedings (OSTI)

The combination of two complementary technologies developed independently at Los Alamos National Laboratory (LANL) and Sandia National Laboratory (SNL) has demonstrated feasibility of target detection and image capture in a highly light-scattering, medium. The technique uses a compact SNL developed Photoconductive Semiconductor Switch/Laser Diode Array (PCSS/LDA) for short-range (distances of 8 to 10 m) large Field-Of-View (FOV) target illumination. Generation of a time-correlated echo signal is accomplished using a photodiode. The return image signal is recorded with a high-speed shuttered Micro-Channel-Plate Image Intensifier (MCPII), declined by LANL and manufactured by Philips Photonics. The MCPII is rated using a high-frequency impedance-matching microstrip design to produce 150 to 200 ps duration optical exposures. The ultra first shuttering producer depth resolution of a few inches along the optic axis between the MCPII and the target, producing enhanced target images effectively deconvolved from noise components from the scattering medium in the FOV. The images from the MCPII are recorded with an RS-170 Charge-Coupled-Device camera and a Big Sky, Beam Code, PC-based digitizer frame grabber and analysis package. Laser pulse data were obtained by the but jitter problems and spectral mismatches between diode spectral emission wavelength and MCPII photocathode spectral sensitivity prevented the capture of fast gating imaging with this demonstration system. Continued development of the system is underway.

Yates, G.J.; Gallegos, R.A.; McDonald, T.E. [and others

1996-12-01T23:59:59.000Z

156

Solving Similarity Joins and Range Queries in Metric Spaces with the List of Twin Clusters  

E-Print Network (OSTI)

The metric space model abstracts many proximity or similarity problems, where the most frequently considered primitives are range and k-nearest neighbor search, leaving out the similarity join, an extremely important primitive. In fact, despite the great attention that this primitive has received in traditional and even multidimensional databases, little has been done for general metric databases. We solve two variants of the similarity join problem: (1) range joins: Given two sets of objects and a distance threshold r, find all the object pairs (one from each set) at distance at most r; and (2) k-closest pair joins: Find the k closest object pairs (one from each set). For this sake, we devise a new metric index, coined List of Twin Clusters (LTC), which indexes both sets jointly, instead of the natural approach of indexing one or both sets independently. Finally, we show how to use the LTC in order to solve classical range queries. Our results show significant speedups over the basic quadratic-time naive alternative for both join variants, and that the LTC is competitive with the original list of clusters when solving range queries. Furthermore, we show that our technique has a great potential for improvements.

Rodrigo Paredes; Nora Reyes

2008-01-01T23:59:59.000Z

157

Range Fuels Biorefinery Groundbreaking | Department of Energy  

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

Range Fuels Biorefinery Groundbreaking Range Fuels Biorefinery Groundbreaking Range Fuels Biorefinery Groundbreaking November 6, 2007 - 5:00pm Addthis Remarks as Prepared for Secretary Bodman Thank you. And let me say how much it means to have my old friend Vinodh here to introduce me. You are a true pioneer in this industry. I also want to thank Mitch for asking me to be here. It's good to see Tom Dorr from the U.S. Department of Agriculture, our partner in so much of the federal government's biomass research and development and deployment efforts. Gov. Perdue, as always, it's great to be in Georgia and to see the progress occurring here under your leadership. I want to reaffirm our support for governors and state legislators who exhibit the kind of leadership you've shown in developing America's new energy future.

158

Range conditions for a spherical mean transform  

E-Print Network (OSTI)

The paper is devoted to the range description of the Radon type transform that averages a function over all spheres centered on a given sphere. Such transforms arise naturally in thermoacoustic tomography, a novel method of medical imaging. Range descriptions have recently been obtained for such transforms, and consisted of smoothness and support conditions, moment conditions, and some additional orthogonality conditions of spectral nature. It has been noticed that in odd dimensions, surprisingly, the moment conditions are superfluous and can be eliminated. It is shown in this text that in fact the same happens in any dimension.

Mark Agranovsky; David Finch; Peter Kuchment

2009-02-25T23:59:59.000Z

159

Including cognitive biases and distance-based rewards in a connectionist model of complex problem solving  

Science Conference Proceedings (OSTI)

We present a cognitive, connectionist-based model of complex problem solving that integrates cognitive biases and distance-based and environmental rewards under a temporal-difference learning mechanism. The model is tested against experimental data obtained ... Keywords: Cognitive biases, Computational modeling, Distance-reduction heuristic, Problem solving, Reinforcement learning, Temporal-difference learning

Frédéric Dandurand; Thomas R. Shultz; Arnaud Rey

2012-01-01T23:59:59.000Z

160

On accurate orientation extraction and appropriate distance measure for low-resolution palmprint recognition  

Science Conference Proceedings (OSTI)

Orientation feature has been demonstrated to be one of the most effective features for low resolution palmprint recognition. In this paper, using steerable filter, we investigate the accurate orientation extraction and appropriate distance measure problems ... Keywords: Distance measure, Feature extraction, Palmprint verification, Steerable filter

Wangmeng Zuo; Feng Yue; David Zhang

2011-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "tp4 range distance" 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

Tactile distance feedback for firefighters: design and preliminary evaluation of a sensory augmentation glove  

Science Conference Proceedings (OSTI)

In this paper, we describe the design and preliminary evaluation of a vibrotactile glove for distance display in low vision search contexts. Specifically, this glove was developed for firefighting applications in which users experience compromised vision ... Keywords: distance sensing, glove, sensory augmentation, smart clothing, vibrotactile display, wearable technology

Anthony Carton; Lucy E. Dunne

2013-03-01T23:59:59.000Z

162

Visualising student tracking data to support instructors in web-based distance education  

Science Conference Proceedings (OSTI)

This paper presents a novel approach of using web log data generated by course management systems (CMS) to help instructors become aware of what is happening in distance learning classes. Specifically, techniques from Information Visualization are used ... Keywords: Web-based distance education, information visualization, student tracking

Riccardo Mazza; Vania Dimitrova

2004-05-01T23:59:59.000Z

163

Impacts of deregulation and competitive entry on telecommunication networks: long distance telephone service  

Science Conference Proceedings (OSTI)

Over the past thirty years, the long distance telephone sector has been revolutionised by a series of technical and regulatory developments. In 1996, Congress passed the Telecommunications Act 1996, which substantially deregulated the telecommunications ... Keywords: economic regulation, long distance service, regression models, telecommunications

K. H. Tiedemann

2008-08-01T23:59:59.000Z

164

Community detection algorithm based on centrality and node distance in scale-free networks  

Science Conference Proceedings (OSTI)

In this paper, we present a method for detecting community structures based on centrality value and node distance. Many real world networks possess a scale-free property and this property makes community detection difficult especially on algorithms that ... Keywords: centrality value, community detection, node distance, scale-free network

Sorn Jarukasemratana; Tsuyoshi Murata; Xin Liu

2013-05-01T23:59:59.000Z

165

EIMD: a new congestion control for fast long-distance networks  

Science Conference Proceedings (OSTI)

In fast long-distance networks, TCP fails to fully utilize the bandwidth due to its congestion control mechanism A plethora of congestion control schemes that may enhance the performance of the transport protocol in fast long-distance networks have been ...

Eunho Yang; Seong-il Ham; Seongho Cho; Chong-kwon Kim; Pillwoo Lee

2006-01-01T23:59:59.000Z

166

Estimating Thematic Similarity of Scholarly Papers with Their Resistance Distance in an Electric Network Model  

E-Print Network (OSTI)

We calculate resistance distances between papers in a nearly bipartite citation network of 492 papers and the sources cited by them. We validate that this is a realistic measure of thematic distance if each citation link has an electric resistance equal to the geometric mean of the number of the paper's references and the citation number of the cited source.

Havemann, Frank; Gläser, Jochen; Struck, Alexander

2013-01-01T23:59:59.000Z

167

A conceptual model of the cognitive processing of environmental distance information  

Science Conference Proceedings (OSTI)

I review theories and research on the cognitive processing of environmental distance information by humans, particularly that acquired via direct experience in the environment. The cognitive processes I consider for acquiring and thinking about environmental ... Keywords: cognitive processing, distance information, spatial cognition

Daniel R. Montello

2009-09-01T23:59:59.000Z

168

A Power Transmission Line Fault Distance Estimation VLSI Chip: Design and Defect Tolerance  

Science Conference Proceedings (OSTI)

This paper presents a system-on-a-chip for fault detection and fault-distance-estimation for power transmission lines in the smart grid. Toward this goal we have designed and fabricated three chips: PGS4, PGS5 and PGS6, each successively more advanced ... Keywords: Smart grid, fault distance, arcing fault, system on a chip, defect tolerance, Radojevic algorithm.

E. MacLean; V. K. Jain

2011-10-01T23:59:59.000Z

169

Gravitomagnetism and the Earth-Mercury range  

E-Print Network (OSTI)

We numerically work out the impact of the general relativistic Lense-Thirring effect on the Earth-Mercury range caused by the gravitomagnetic field of the rotating Sun. The peak-to peak nominal amplitude of the resulting time-varying signal amounts to 1.75 10^1 m over a temporal interval 2 yr. Future interplanetary laser ranging facilities should reach a cm-level in ranging to Mercury over comparable timescales; for example, the BepiColombo mission, to be launched in 2014, should reach a 4.5 - 10 cm level over 1 - 8 yr. We looked also at other Newtonian (solar quadrupole mass moment, ring of the minor asteroids, Ceres, Pallas, Vesta, Trans-Neptunian Objects) and post-Newtonian (gravitoelectric Schwarzschild solar field) dynamical effects on the Earth-Mercury range. They act as sources of systematic errors for the Lense-Thirring signal which, in turn, if not properly modeled, may bias the recovery of some key parameters of such other dynamical features of motion. Their nominal peak-to-peak amplitudes are as large as 4 10^5 m (Schwarzschild), 3 10^2 m (Sun's quadrupole), 8 10^1 m (Ceres, Pallas, Vesta), 4 m (ring of minor asteroids), 8 10^-1 m (Trans-Neptunian Objects). Their temporal patterns are different with respect to that of the gravitomagnetic signal.

Lorenzo Iorio

2010-02-01T23:59:59.000Z

170

High-Dynamic-Range Imaging for artists  

Science Conference Proceedings (OSTI)

An introduction and overview of the practical applications and uses of high-dynamic-range imaging (HDRI) from a production point of view. The course begins with a brief overview of HDRI and pre-production, production, and post-production techniques. ...

Kirt Witte

2009-12-01T23:59:59.000Z

171

Secure multidimensional range queries in sensor networks  

Science Conference Proceedings (OSTI)

Most future large-scale sensor networks are expected to follow a two-tier architecture which consists of resource-rich master nodes at the upper tier and resource-poor sensor nodes at the lower tier. Sensor nodes submit data to nearby master nodes which ... Keywords: multidimensional range query, security, sensor networks,

Rui Zhang; Jing Shi; Yanchao Zhang

2009-05-01T23:59:59.000Z

172

Some Recent Long-Range Diffusion Observations  

Science Conference Proceedings (OSTI)

Recent atmospheric cloud-spreading (relative diffusion) data from a variety of sources are combined to show that the horizontal spreading rate is approximately linear over a time range from 1 to 10 or more hours (20?200 or more km) of downwind ...

F. A. Gifford

1995-07-01T23:59:59.000Z

173

Seasonal Variation in Daily Temperature Ranges  

Science Conference Proceedings (OSTI)

Abrupt spring and autumnal changes in the daily temperature range, from low winter values to higher nonwinter values, were noted in the Minneapolis-St. Paul temperature record. Since this feature was even more evident in five rural and small town ...

David L. Ruschy; Donald G. Baker; Richard H. Skaggs

1991-12-01T23:59:59.000Z

174

Likely Ranges of Climate Change in Bolivia  

Science Conference Proceedings (OSTI)

Bolivia is facing numerous climate-related threats, ranging from water scarcity due to rapidly retreating glaciers in the Andes to a partial loss of the Amazon forest in the lowlands. To assess what changes in climate may be expected in the future,...

Christian Seiler; Ronald W. A. Hutjes; Pavel Kabat

2013-06-01T23:59:59.000Z

175

Formation of metal nanoparticles by short-distance sputter deposition in a reactive ion etching chamber  

Science Conference Proceedings (OSTI)

A new method is reported to form metal nanoparticles by sputter deposition inside a reactive ion etching chamber with a very short target-substrate distance. The distribution and morphology of nanoparticles are found to be affected by the distance, the ion concentration, and the sputtering time. Densely distributed nanoparticles of various compositions were fabricated on the substrates that were kept at a distance of 130 mum or smaller from the target. When the distance was increased to 510 mum, island structures were formed, indicating the tendency to form continuous thin film with longer distance. The observed trend for nanoparticle formation is opposite to the previously reported mechanism for the formation of nanoparticles by sputtering. A new mechanism based on the seeding effect of the substrate is proposed to interpret the experimental results.

Nie Min; Meng, Dennis Desheng [Department of Mechanical Engineering and Engineering Mechanics, Michigan Technological University, Houghton, Michigan 49931 (United States); Sun Kai [Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States)

2009-09-01T23:59:59.000Z

176

THE GREEN BANK TELESCOPE H II REGION DISCOVERY SURVEY. III. KINEMATIC DISTANCES  

SciTech Connect

Using the H I emission/absorption method, we resolve the kinematic distance ambiguity and derive distances for 149 of 182 (82%) H II regions discovered by the Green Bank Telescope H II Region Discovery Survey (GBT HRDS). The HRDS is an X-band (9 GHz, 3 cm) GBT survey of 448 previously unknown H II regions in radio recombination line and radio continuum emission. Here, we focus on HRDS sources from 67 Degree-Sign {>=} l {>=} 18 Degree-Sign , where kinematic distances are more reliable. The 25 HRDS sources in this zone that have negative recombination line velocities are unambiguously beyond the orbit of the Sun, up to 20 kpc distant. They are the most distant H II regions yet discovered. We find that 61% of HRDS sources are located at the far distance, 31% at the tangent-point distance, and only 7% at the near distance. 'Bubble' H II regions are not preferentially located at the near distance (as was assumed previously) but average 10 kpc from the Sun. The HRDS nebulae, when combined with a large sample of H II regions with previously known distances, show evidence of spiral structure in two circular arc segments of mean Galactocentric radii of 4.25 and 6.0 kpc. We perform a thorough uncertainty analysis to analyze the effect of using different rotation curves, streaming motions, and a change to the solar circular rotation speed. The median distance uncertainty for our sample of H II regions is only 0.5 kpc, or 5%. This is significantly less than the median difference between the near and far kinematic distances, 6 kpc. The basic Galactic structure results are unchanged after considering these sources of uncertainty.

Anderson, L. D. [Department of Physics, West Virginia University, Morgantown, WV 26506 (United States); Bania, T. M. [Institute for Astrophysical Research, Department of Astronomy, Boston University, 725 Commonwealth Avenue, Boston, MA 02215 (United States); Balser, Dana S. [National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903-2475 (United States); Rood, Robert T., E-mail: Loren.Anderson@mail.wvu.edu [Astronomy Department, University of Virginia, P.O. Box 3818, Charlottesville, VA 22903-0818 (United States)

2012-07-20T23:59:59.000Z

177

Rangely, Colorado: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Rangely, Colorado: Energy Resources Rangely, Colorado: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 40.0874759°, -108.8048292° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.0874759,"lon":-108.8048292,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

178

Front Range Energy LLC | Open Energy Information  

Open Energy Info (EERE)

Energy LLC Energy LLC Jump to: navigation, search Logo: Front Range Energy LLC Name Front Range Energy LLC Address 31375 Great Western Dr Place Windsor, Colorado Zip 80550 Sector Biofuels Product Ethanol producer Website http://www.frontrangeenergy.co Coordinates 40.4605154°, -104.8565272° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.4605154,"lon":-104.8565272,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

179

Tonopah Test Range closure sites revegetation plan  

SciTech Connect

This document is a revegetation plan for long-term stabilization (revegetation) of land disturbed by activities associated with the closure of a Bomblet Pit and the Five Points Landfill. Both sites are on the Tonopah Test Range (TTR) located in south-central Nevada. This document contains general reclamation practices and procedures that will be followed during the revegetation of these sites. The revegetation procedures proposed have been developed over several years of research and include the results of reclamation trials at Area 11 and Area 19 on the Nevada Test Site (NTS), and more recently at the Double Tracks (Nellis Air Force Range) reclamation demonstration plots. In addition, the results of reclamation efforts and concurrent research efforts at the Yucca Mountain Project have been considered in the preparation of this revegetation plan.

Anderson, D.C.; Hall, D.B.

1997-05-01T23:59:59.000Z

180

Inertial range turbulence in kinetic plasmas  

E-Print Network (OSTI)

The transfer of turbulent energy through an inertial range from the driving scale to dissipative scales in a kinetic plasma followed by the conversion of this energy into heat is a fundamental plasma physics process. A theoretical foundation for the study of this process is constructed, but the details of the kinetic cascade are not well understood. Several important properties are identified: (a) the conservation of a generalized energy by the cascade; (b) the need for collisions to increase entropy and realize irreversible plasma heating; and (c) the key role played by the entropy cascade--a dual cascade of energy to small scales in both physical and velocity space--to convert ultimately the turbulent energy into heat. A strategy for nonlinear numerical simulations of kinetic turbulence is outlined. Initial numerical results are consistent with the operation of the entropy cascade. Inertial range turbulence arises in a broad range of space and astrophysical plasmas and may play an important role in the ther...

Howes, G G

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tp4 range distance" 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

Inertial range turbulence in kinetic plasmas  

E-Print Network (OSTI)

The transfer of turbulent energy through an inertial range from the driving scale to dissipative scales in a kinetic plasma followed by the conversion of this energy into heat is a fundamental plasma physics process. A theoretical foundation for the study of this process is constructed, but the details of the kinetic cascade are not well understood. Several important properties are identified: (a) the conservation of a generalized energy by the cascade; (b) the need for collisions to increase entropy and realize irreversible plasma heating; and (c) the key role played by the entropy cascade--a dual cascade of energy to small scales in both physical and velocity space--to convert ultimately the turbulent energy into heat. A strategy for nonlinear numerical simulations of kinetic turbulence is outlined. Initial numerical results are consistent with the operation of the entropy cascade. Inertial range turbulence arises in a broad range of space and astrophysical plasmas and may play an important role in the thermalization of fusion energy in burning plasmas.

G. G. Howes

2007-11-27T23:59:59.000Z

182

APS Long Range Operations Schedule FY2009  

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

09) 09) Alternate Formats: iCal | Excel | PDF APS Long Range Operation Schedule (FY2009) 2008-3 2009-1 2009-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5

183

APS Long Range Operations Schedule FY2010  

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

10) 10) Alternate Formats: iCal | Excel | PDF APS Long-Range Operation Schedule 2009-3 2010-1 2010-2 Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5

184

Fan-less long range alpha detector  

DOE Patents (OSTI)

A fan-less long range alpha detector which operates by using an electrical field between a signal plane and the surface or substance to be monitored for air ions created by collisions with alpha radiation. Without a fan, the detector can operate without the possibility of spreading dust and potential contamination into the atmosphere. A guard plane between the signal plane and the electrically conductive enclosure and maintained at the same voltage as the signal plane, reduces leakage currents. The detector can easily monitor soil, or other solid or liquid surfaces.

MacArthur, Duncan W. (Los Alamos, NM); Bounds, John A. (Los Alamos, NM)

1994-01-01T23:59:59.000Z

185

Fan-less long range alpha detector  

DOE Patents (OSTI)

A fan-less long range alpha detector is disclosed which operates by using an electrical field between a signal plane and the surface or substance to be monitored for air ions created by collisions with alpha radiation. Without a fan, the detector can operate without the possibility of spreading dust and potential contamination into the atmosphere. A guard plane between the signal plane and the electrically conductive enclosure and maintained at the same voltage as the signal plane, reduces leakage currents. The detector can easily monitor soil, or other solid or liquid surfaces. 2 figures.

MacArthur, D.W.; Bounds, J.A.

1994-05-10T23:59:59.000Z

186

Relevant energy ranges for astrophysical reaction rates  

Science Conference Proceedings (OSTI)

Effective energy windows (Gamow windows) of astrophysical reaction rates for (p,gamma), (p,n), (p,alpha), (alpha,gamma), (alpha,n), (alpha,p), (n,gamma), (n,p), and (n,alpha) on targets with 10<=Z<=83 from proton to neutron dripline are calculated using theoretical cross sections. It is shown that widely used approximation formulas for the relevant energy ranges are not valid for a large number of reactions relevant to hydrostatic and explosive nucleosynthesis. The influence of the energy dependence of the averaged widths on the location of the Gamow windows is discussed and the results are presented in tabular form.

Rauscher, Thomas [Department of Physics, University of Basel, Klingelbergstr. 82, CH-4056 Basel (Switzerland)

2010-04-15T23:59:59.000Z

187

Tonopah Test Range 2030 Meeting Summary Report  

SciTech Connect

Corrective Action Sites (CASs) and Corrective Action Units (CAUs) at the Tonopah Test Range (TTR) may be placed into three categories: Closed, Closed in Place, or Closure in Progress. CASs and CAUs where contaminants were either not detected or were cleaned up to within regulatory action levels are summarized. CASs and CAUs where contaminants and/or waste have been closed in place are summarized. There is also a table that summarizes the contaminant that has been closed at each site, if land-use restrictions are present, and if post-closure inspections are required.

NSTec Environmental Restoration

2009-04-01T23:59:59.000Z

188

EXCEPTED SERVICE (EJ & EK) PAY RANGES  

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

EXCEPTED SERVICE (EJ & EK) PAY RANGES EXCEPTED SERVICE (EJ & EK) PAY RANGES Eff. 01/03/2010 Pay Table (***Excludes applicable Locality Pay) Grade/Band Minimum Maximum GS Grade/Step Equivalent 01 $27,431 $47,103 5/1 to 9/5 02 $41,563 $68,310 9/1 to 12/5 03 $60,274 $95,989 12/1 to 14/5 04 $84,697 $133,403* 14/1 to 103% of 15/10 05 $145,700** $165,300 EX-V to EX-III *Change to maximum pay rate per DOE O 329.1 effective 03/30/2012. **Change to minimum pay rate per DOE O 329.1 effective 03/30/2012. ***Calculating salary to include Locality Pay: Example: An employee is selected for an EJ/EK position in the Washington, D.C. Metropolitan Area which has a locality payment rate of 24.22% (locality rate for 2011) Step One: Convert locality payment percent to a decimal - 1.2422;

189

APS Long Range Schedule FY1996  

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

Long Range Commissioning Schedule for FY1996 Long Range Commissioning Schedule for FY1996 Date First Shift 0:00-8:00 Second Shift 8:00-16:00 Third Shift 16:00-24:00 3/15/96 SR Studies 1-ID-A Shielding Verification SR Studies 3/23/96 SR Studies 3-ID-A , 2-ID-A , 3-ID-B Shielding Verifications User Beam 3/24/96 User Beam User Beam User Beam 3/25/96 User Beam 19-ID-A Shielding Verification User Beam 3/26/96 User Beam 2-ID-A , 12-BM-A Shielding Verifications User Beam 3/27/96 User Beam 5-BM-A Shielding Verification User Beam 3/28/96 User Beam 19-ID-C Shielding Verification User Beam until 20:00 3/29/96 SR Studies SR Studies SR Studies 3/30/96 SR Studies SR Studies SR Studies 3/31/96 SR Studies SR Studies SR Studies 4/1/96 SR Studies SR Studies SR Studies 4/2/96 SR Studies 5-BM-B Shielding Verification User Beam

190

Standoff Spectroscopy Using a Conditioned Target Identifies Hazardous Materials at a Distance  

A safer method for the standoff (long distance) detection and identification ofmolecules on a surface has been invented by researchers at ORNL and the Universityof Tennessee. This invention avoids the necessity of close and potentially ...

191

Generation of Optimal Unit Distance Codes for Rotary Encoders through Simulated Evolution  

Science Conference Proceedings (OSTI)

An evolutionary algorithm is used to generate unit distance codes for absolute rotary encoders. The target is to obtain a code suitable for disk size reduction, or for resolution increase, thus overcoming the limitations of conventional Gray codes. Obtained ...

Stefano Gregori; Roberto Rossi; Guido Torelli; Valentino Liberali

2001-04-01T23:59:59.000Z

192

Visualisation of influenza A protein segments in distance invariant self-organising map  

Science Conference Proceedings (OSTI)

Due to the lateral gene transfer, the phylogenetic tree could be inadequate for representing the evolution of virus. This paper employs the distance invariant manifold (Cheng and Liou, 2009) to display the collection of influenza A in a cubic space. ...

Wei-Chen Cheng; Cheng-Yuan Liou

2012-01-01T23:59:59.000Z

193

Decisionmaking in hospital earthquake evacuation: Does distance from the epicenter matter?  

E-Print Network (OSTI)

status of hospitals that does not depend on intactis one option. This study does not have the ability toUsing larger distances does not make sense, as no hospital

Schultz, Carl H. MD; Koenig, Kristi L. MD; Lewis, Roger J. MD, PhD

2007-01-01T23:59:59.000Z

194

A preliminary comparison of synchronous venues for distance learning: traditional videoconferencing vs. web-based conferencing  

Science Conference Proceedings (OSTI)

Synchronous venues are often preferred in distance learning settings as they most closely approximate the face-to-face experience. This paper examines two synchronous venues: videoconferencing and web-based conferencing. Both are compared, ...

Norman A. Garrett

2011-07-01T23:59:59.000Z

195

Web services model for mobile, distance and distributed learning using service-oriented architecture  

Science Conference Proceedings (OSTI)

This paper describes web services and service-oriented architecture and how these new technologies could be exploited to develop integrated software for mobile, distance and distributed learning. The paper also provides details of a prototype translator ... Keywords: VLE, distance learning, distributed learning, interoperability, m-learning, mobile communications, mobile learning, online education, online learning, service-oriented architecture, virtual learning environments, web services, web-based education

Sushil K. Sharma; Fred L. Kitchens; Queen Esther Booker; Huinan Xu

2006-01-01T23:59:59.000Z

196

Range Selectivity Estimation for Continuous Attributes  

E-Print Network (OSTI)

Many commercial database systems maintain histograms to efficiently estimate query selectivities as part of query optimization. Most work on histogram design is implicitly geared towards discrete or categorical attribute value domains. In this paper, we consider approaches that are better suited for the continuous valued attributes commonly found in scientific and statistical databases. We propose two methods based on spline functions for estimating the selectivity of range queries over univariate and multivariate data. These methods are more accurate than histograms. As the results from our experiments on both real and synthetic data sets demonstrate, the proposed methods achieved substantially better (up to 5.5 times) estimation error than the state-of-the-art histograms, at exactly the same storage space and with comparable CPU runtime overhead; moreover, the superiority of the proposed spline methods is amplified when applied to multivariate data. 1 Introduction Selectivity esti...

Flip Korn; Theodore Johnson; H. V. Jagadish

1999-01-01T23:59:59.000Z

197

Scannerless loss modulated flash color range imaging  

SciTech Connect

Scannerless loss modulated flash color range imaging methods and apparatus are disclosed for producing three dimensional (3D) images of a target within a scene. Apparatus and methods according to the present invention comprise a light source providing at least three wavelengths (passbands) of illumination that are each loss modulated, phase delayed and simultaneously directed to illuminate the target. Phase delayed light backscattered from the target is spectrally filtered, demodulated and imaged by a planar detector array. Images of the intensity distributions for the selected wavelengths are obtained under modulated and unmodulated (dc) illumination of the target, and the information contained in the images combined to produce a 3D image of the target.

Sandusky, John V. (Albuquerque, NM); Pitts, Todd Alan (Rio Rancho, NM)

2009-02-24T23:59:59.000Z

198

Scannerless loss modulated flash color range imaging  

SciTech Connect

Scannerless loss modulated flash color range imaging methods and apparatus are disclosed for producing three dimensional (3D) images of a target within a scene. Apparatus and methods according to the present invention comprise a light source providing at least three wavelengths (passbands) of illumination that are each loss modulated, phase delayed and simultaneously directed to illuminate the target. Phase delayed light backscattered from the target is spectrally filtered, demodulated and imaged by a planar detector array. Images of the intensity distributions for the selected wavelengths are obtained under modulated and unmodulated (dc) illumination of the target, and the information contained in the images combined to produce a 3D image of the target.

Sandusky, John V. (Albuquerque, NM); Pitts, Todd Alan (Rio Rancho, NM)

2008-09-02T23:59:59.000Z

199

Ultrasonic ranging and data telemetry system  

DOE Patents (OSTI)

An ultrasonic ranging and data telemetry system determines a surveyor's position and automatically links it with other simultaneously taken survey data. An ultrasonic and radio frequency (rf) transmitter are carried by the surveyor in a backpack. The surveyor's position is determined by calculations that use the measured transmission times of an airborne ultrasonic pulse transmitted from the backpack to two or more prepositioned ultrasonic transceivers. Once a second, rf communications are used both to synchronize the ultrasonic pulse transmission-time measurements and to transmit other simultaneously taken survey data. The rf communications are interpreted by a portable receiver and microcomputer which are brought to the property site. A video display attached to the computer provides real-time visual monitoring of the survey progress and site coverage.

Brashear, Hugh R. (Farragut, TN); Blair, Michael S. (Knoxville, TN); Phelps, James E. (Knoxville, TN); Bauer, Martin L. (Oak Ridge, TN); Nowlin, Charles H. (Oak Ridge, TN)

1990-01-01T23:59:59.000Z

200

Photon flux and distance from the source: consequences for quantum foundations and technologies  

E-Print Network (OSTI)

The paper explores the fundamental physical principles of quantum mechanics (in fact, quantum field theory) which limit the bit rate for long distances. Propagation of photons in optical fibers is modeled using methods of quantum electrodynamics. We define photon "duration" as the standard deviation of the photon arrival time; we find its asymptotics for long distances and then obtain the main result of the paper: the linear dependence of photon duration on the distance. This effect puts the limit to joint increasing of the photon flux and the distance from the source and it has important consequences both for quantum information technologies and quantum foundations. Once quantum communication develops into a real technology, it would be appealing to the engineers to increase both the photon flux and the distance. And here our "photon flux/distance effect" has to be taken into account (at least if successively emitted photons are considered as independent). This effect also has to be taken into account in a loophole free test of Bell's type -- to close jointly the detection and locality loopholes.

Andrei Khrennikov; Börje Nilsson; Sven Nordebo; Igor Volovich

2013-09-21T23:59:59.000Z

Note: This page contains sample records for the topic "tp4 range distance" 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

Measurements of Detailed Temperature Profiles within the Radar Range Gate Using the Range Imaging Technique  

Science Conference Proceedings (OSTI)

The present study applies the range imaging (RIM) technique to radio acoustic sounding system (RASS) measurements in an attempt to improve the vertical resolution of temperature profiles obtained by RASS measurements.

Jun-ichi Furumoto; Tomonori Shinoda; Atsushi Matsugatani; Toshitaka Tsuda

2011-01-01T23:59:59.000Z

202

A Short-Range to Early-Medium-Range Ensemble Prediction System for the European Area  

Science Conference Proceedings (OSTI)

An ensemble prediction system, especially designed for the short to early-medium range for the European domain, is presented. The initial perturbations of each ensemble are based on singular vectors that maximize the 3-day total energy error ...

H. Hersbach; R. Mureau; J. D. Opsteegh; J. Barkmeijer

2000-10-01T23:59:59.000Z

203

Tonopah Test Range Post-Closure Inspection Annual Report, Tonopah Test Range, Nevada, Calendar Year 2003  

Science Conference Proceedings (OSTI)

This post-closure inspection report provides documentation of the semiannual inspection activities, maintenance and repair activities, and conclusions and recommendations for calendar year 2003 for eight corrective action units located on the Tonopah Test Range, Nevada.

U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office; Bechtel Nevada

2004-04-01T23:59:59.000Z

204

Autonomous Vehicles Have a Wide Range of Possible Energy Impacts (Poster)  

SciTech Connect

This poster presents initial estimates of the net energy impacts of automated vehicles (AVs). Automated vehicle technologies are increasingly recognized as having potential to decrease carbon dioxide emissions and petroleum consumption through mechanisms such as improved efficiency, better routing, lower traffic congestion, and by enabling advanced technologies. However, some effects of AVs could conceivably increase fuel consumption through possible effects such as longer distances traveled, increased use of transportation by underserved groups, and increased travel speeds. The net effect on petroleum use and climate change is still uncertain. To make an aggregate system estimate, we first collect best estimates for the energy impacts of approximately ten effects of AVs. We then use a modified Kaya Identity approach to estimate the range of aggregate effects and avoid double counting. We find that depending on numerous factors, there is a wide range of potential energy impacts. Adoption of automated personal or shared vehicles can lead to significant fuel savings but has potential for backfire.

Brown, A.; Repac, B.; Gonder, J.

2013-07-01T23:59:59.000Z

205

Aerial radiation survey at a military range.  

SciTech Connect

Aberdeen Proving Ground (APG) is currently listed on the Superfund National Priorities List because of past waste handling practices at 13 'study areas.' Concern has been expressed that anthropogenic radioisotopes may have been released at some of the study areas, with the potential of posing health risks to human or ecological receptors. This concern was addressed by thoroughly searching archival records, sampling and analyzing environmental media, and performing an aerial radiation survey. The aerial radiation survey techniques employed have been used over all U.S. Department of Energy and commercial reactor sites. Use of the Aerial Measurement System (AMS) allowed investigators to safely survey areas where surveys using hand-held instruments would be difficult to perform. In addition, the AMS delivered a full spectrum of the measured gamma radiation, thereby providing a means of determining which radioisotopes were present at the surface. As a quality check on the aerial measurements, four ground truth measurements were made at selected locations and compared with the aerial data for the same locations. The results of the survey revealed no evidence of surface radioactive contamination. The measured background radiation, including the cosmic contribution, ranged from 4 to 11 {mu}R/h.

Williams, G. P.; Martino, L. E.; Wrobel, J.; Environmental Assessment; U.S. Army Aberdeen Proving Ground

2001-04-01T23:59:59.000Z

206

Data Processing Procedures and Methodology for Estimating Trip Distances for the 1995 American Travel Survey (ATS)  

SciTech Connect

The 1995 American Travel Survey (ATS) collected information from approximately 80,000 U.S. households about their long distance travel (one-way trips of 100 miles or more) during the year of 1995. It is the most comprehensive survey of where, why, and how U.S. residents travel since 1977. ATS is a joint effort by the U.S. Department of Transportation (DOT) Bureau of Transportation Statistics (BTS) and the U.S. Department of Commerce Bureau of Census (Census); BTS provided the funding and supervision of the project, and Census selected the samples, conducted interviews, and processed the data. This report documents the technical support for the ATS provided by the Center for Transportation Analysis (CTA) in Oak Ridge National Laboratory (ORNL), which included the estimation of trip distances as well as data quality editing and checking of variables required for the distance calculations.

Hwang, H.-L.; Rollow, J.

2000-05-01T23:59:59.000Z

207

Estimation and validation of mode distances for the 1993 Commodity Flow Survey  

SciTech Connect

The 1993 Commodity Flow Survey (CFS) collected shipment data from a sample of approximately 200,000 domestic business establishments. Each selected establishment provided information on origin, destination, commodity, shipment weight and value, and modes of transport for a sample of its outbound shipments. One data item not reported by CFS participants was shipment distance. This important piece of information was estimated by simulating probable routes using computer models of the highway, rail, air, waterway, and pipeline networks and their interconnections. This paper describes the nature of the shipment distance estimation problem, the procedures used to estimate mode-specific distances between origin and destination ZIP codes, and the techniques used to validate the results.

Middendorf, D.P.; Bronzini, M. S.; Peterson, B.; Liu, Cheng; Chin, Shih-Miao

1995-09-01T23:59:59.000Z

208

Direct Distances to Cepheids in the Large Magellanic Cloud: Evidence for a Universal Slope of the Period-Luminosity Relation up to Solar Abundance  

E-Print Network (OSTI)

We have applied the infrared surface brightness (ISB) technique to derive distances to 13 Cepheids in the LMC which span a period range from 3 to 42 days. From the absolute magnitudes of the variables calculated from these distances, we find that the LMC Cepheids define tight period-luminosity relations in the V, I, W, J and K bands which agree exceedingly well with the corresponding Galactic PL relations derived from the same technique, and are significantly steeper than the LMC PL relations in these bands observed by the OGLE-II Project in V, I and W, and by Persson et al. in J and K. We find that the tilt-corrected true distance moduli of the LMC Cepheids show a significant dependence on period, which hints at a systematic error in the ISB technique related to the period of the stars. We identify as the most likely culprit the p-factor which converts the radial into pulsational velocities; our data imply a much steeper period dependence of the p-factor than previously thought, and we derive p=1.58 (+/-0.02) -0.15 (+/-0.05) logP as the best fit from our data, with a zero point tied to the Milky Way open cluster Cepheids. Using this revised p-factor law, the period dependence of the LMC Cepheid distance moduli disappears, and at the same time the Milky Way and LMC PL relations agree among themselves, and with the directly observed LMC PL relations, within the 1 sigma uncertainties. Our main conclusion is that the previous, steeper Galactic PL relations were caused by an erroneous calibration of the p-factor law, and that there is now evidence that the slope of the Cepheid PL relation is independent of metallicity up to solar metallicity, in both optical, and near-infrared bands.

W. Gieren; J. Storm; T. G. Barnes III; P. Fouque; G. Pietrzynski; F. Kienzle

2005-03-29T23:59:59.000Z

209

Geographic Information System At Northern Basin & Range Region...  

Open Energy Info (EERE)

Geographic Information System At Northern Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique...

210

Analysis of Long-range Clean Energy Investment Scenarios for...  

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

of Long-range Clean Energy Investment Scenarios for Eritrea, East Africa Title Analysis of Long-range Clean Energy Investment Scenarios for Eritrea, East Africa Publication Type...

211

(Whose) value-sensitive design: a study of long- distance relationships in an Arabic cultural context  

Science Conference Proceedings (OSTI)

This paper describes a qualitative study of how 11 Arab individuals use technology in the context of their long-distance romantic relationships. Our participants' communication practices bear similarities to previous findings on the mediation of intimacy ... Keywords: communication, culture, feminism, intimacy, values

Tamara Alsheikh; Jennifer A. Rode; Siân E. Lindley

2011-03-01T23:59:59.000Z

212

The proximity factor: impact of distance on co-located collaboration  

Science Conference Proceedings (OSTI)

Groups collaborating around a large wall display can do so in a variety of arrangements, positioning themselves at different distances from the display and from each other. We examined the impact of proximity on the effectiveness and enjoyment of co-located ... Keywords: co-located collaboration, direct input, indirect input, large displays, proximity, single-display groupware (SDG), wall display

Kirstie Hawkey; Melanie Kellar; Derek Reilly; Tara Whalen; Kori M. Inkpen

2005-11-01T23:59:59.000Z

213

3-D chamfer distances and norms in anisotropic grids Celine Fouarda,b,c,*, Gregoire Malandaina  

E-Print Network (OSTI)

U N C O R R EC TED PR O O F 3-D chamfer distances and norms in anisotropic grids Ce´line Fouarda the center lines of the vessels and to compute their radii [5]. Clearly this volume of data cannot will approximately double the volume of input data (here from 450 to 900 Mb). While modern computer disk capacity

Ayache, Nicholas

214

Trace distance and linear entropy of qubit states: Role of initial qubit-environment correlations  

E-Print Network (OSTI)

The role of initial qubit-environment correlations on trace distance between two qubit states is studied in the framework of non--Markovian pure dephasing. The growth of mixedness of reduced state quantified by linear entropy is shown to be related to the degree of initial qubit--environment correlations.

Jerzy Dajka; Jerzy Luczka

2013-04-08T23:59:59.000Z

215

Distance Dependence of Electron Transfer in DNA: The Role of the Reorganization Energy and Free Energy  

E-Print Network (OSTI)

Distance Dependence of Electron Transfer in DNA: The Role of the Reorganization Energy and Free of the solvent reorganization energy and free energy in the heterogeneous DNA environment. DNA is modeled represents water. Model calculations show the importance of including the reorganization energy and the free

Fayer, Michael D.

216

Reducing the Plagiarism Detection Search Space on the Basis of the Kullback-Leibler Distance  

E-Print Network (OSTI)

Reducing the Plagiarism Detection Search Space on the Basis of the Kullback-Leibler Distance, jbenedi}@dsic.upv.es http://www.dsic.upv.es/grupos/nle/ Abstract. Automatic plagiarism detection the plagiarised fragments to their potential source. Publications on this task often assume that the search space

Rosso, Paolo

217

A sequential minimal optimization algorithm for the all-distances support vector machine  

Science Conference Proceedings (OSTI)

The All-Distances SVM is a single-objective light extension of the binary µ-SVM for multi-category classification that is competitive against multi-objective SVMs, such as One-against-the-Rest SVMs and One-against-One SVMs. Although the model takes ... Keywords: kernel machines, multi-category classification, sequential minimal optimization, support vector machines

Diego Candel; Ricardo Ñanculef; Carlos Concha; Héctor Allende

2010-11-01T23:59:59.000Z

218

Magnetic hose: Routing and Long-distance Transportation of Magnetic Fields  

E-Print Network (OSTI)

Magnetism is a fundamental interaction shaping our physical world, at the basis of technologies such as magnetic recording or energy generation. Unlike electromagnetic waves, which can be routed and transmitted with waveguides to long distances, magnetic fields rapidly decay with distance. Here we show the concept, design, and properties of a magnetic hose which enables to transfer the static magnetic field generated by a source to an arbitrary distance, and along any given trajectory. Using transformation optics, adapted to static magnetic fields, we first introduce an ideal scheme displaying the basic mechanism behind our proposal and allowing for a perfect transfer. Then we present a simplified approach, which allows to construct a magnetic hose using two available materials: a superconducting shell with a ferromagnetic core. Such a magnetic hose can guide and transport magnetic fields to large distances, unlike ferromagnets- the conventional existing method-, for which transmitted fields decay quickly with the ferromagnetic length. As a proof of pinciple experiment, we demonstrate the field transmission through superconducting-ferromagnetic hoses with lengths up to 140mm, which improve the transmission of an analogous ferromagnet by a 400% factor. Magnetic hoses may provide new solutions in enhancing spin couplings in all-magnetic logic schemes and in harnessing quantum systems by addressable magnetic fields, in the context of quantum information processing.

Carles Navau; Jordi Prat-Camps; Oriol Romero-Isart; J. Ignacio Cirac; Alvaro Sanchez

2013-04-23T23:59:59.000Z

219

An accelerated zone 2 trip algorithm for non-pilot distance relays  

Science Conference Proceedings (OSTI)

This paper presents an algorithm able to accelerate the zone 2 trip of non-pilot distance relays by detecting remote breaker operation following a zone 2 fault. It is based on monitoring changes in proposed composite signals. The performance of the proposed ... Keywords: accelerated trip (AT), real time digital simulator (RTDS), sequential accelerated trip (SAT), total fault clearing time (TFCT)

German Rosas Ortiz; Tarlochan S. Sidhu

2007-05-01T23:59:59.000Z

220

Geomagnetic Precursor Z Component Diurnal Variation Phase Anomaly Recognition based on the Pattern Distance  

Science Conference Proceedings (OSTI)

Geomagnetic precursor is one of many earthquake precursors, which have better effects on earthquake prediction, while the diurnal variation anomaly of geomagnetic precursor Z component is an important one in short-impending anomalies. Basing on the pattern ... Keywords: Geomagnetic Precursor, Diurnal Variation, Pattern Distance, Anomaly Recognition

Shaochun Wu; Tongyu Yuan; Yan Tang; Bofeng Zhang; Daming Wei

2010-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "tp4 range distance" 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

Improved multicriteria spanners for Ad-Hoc networks under energy and distance metrics  

Science Conference Proceedings (OSTI)

We study the problem of spanner construction in wireless ad-hoc networks through power assignments under two spanner models—distance and energy. In particular, we are interested in asymmetric power assignments so that the induced communication ... Keywords: Geometric and energy spanners, approximation algorithms

Hanan Shpungin, Michael Segal

2013-07-01T23:59:59.000Z

222

Final Technical Report: Discovering the Nature of Dark Energy: Towards Better Distances from Type Ia Supernovae  

Science Conference Proceedings (OSTI)

The final technical report from the project "Discovering the Nature of Dark Energy: Towards Better Distances from Type Ia Supernovae" led at Rutgers the State University of New Jersey by Prof. Saurabh W. Jha is presented, including all publications resulting from this award.

Saurabh W. Jha

2012-10-03T23:59:59.000Z

223

Effectiveness of a Virtual Laboratory as a preparatory resource for Distance Education chemistry students  

Science Conference Proceedings (OSTI)

Many have argued that interactive 3D virtual environments have great educational potential due to their ability to engage learners in the exploration, construction and manipulation of virtual objects, structures and metaphorical representations of ideas. ... Keywords: Chemistry education, Distance Education, Interactive learning environments, Post-secondary education, Simulations, Virtual reality

Barney Dalgarno; Andrea G. Bishop; William Adlong; Danny R. Bedgood, Jr.

2009-11-01T23:59:59.000Z

224

Combining lexical resources with tree edit distance for recognizing textual entailment  

Science Conference Proceedings (OSTI)

This paper addresses Textual Entailment (i.e. recognizing that the meaning of a text entails the meaning of another text) using a Tree Edit Distance algorithm between the syntactic trees of the two texts. A key aspect of the approach is the estimation ...

Milen Kouylekov; Bernardo Magnini

2005-04-01T23:59:59.000Z

225

Geomagnetic imprinting: A unifying hypothesis of long-distance natal homing in salmon and sea turtles  

E-Print Network (OSTI)

Geomagnetic imprinting: A unifying hypothesis of long-distance natal homing in salmon and sea geomagnetic polarity reversals, may affect ecological processes by disrupting natal homing, resulting the globe before reentering the planet in the northern hemisphere. Several geomagnetic elements vary pre

Lohmann, Kenneth J.

226

Constructive episodic simulation: temporal distance and detail of past and future events modulate hippocampal engagement  

E-Print Network (OSTI)

ABSTRACT: Behavioral, lesion and neuroimaging evidence show striking commonalities between remembering past events and imagining future events. In a recent event-related fMRI study, we instructed participants to construct a past or future event in response to a cue. Once an event was in mind, participants made a button press, then generated details (elaboration) and rated them. The elaboration of past and future events recruited a common neural network. However, regions within this network may respond differentially to event characteristics, such as the amount of detail generated and temporal distance, depending on whether the event is in the past or future. To investigate this further, we conducted parametric modulation analyses, with temporal distance and detail as covariates, and focused on the medial temporal lobes and frontopolar cortex. The analysis of detail (independent of temporal distance) showed that the left posterior hippocampus was responsive to the amount of detail comprising both past and future events. In contrast, the left anterior hippocampus responded differentially to the amount of detail comprising future events, possibly reflecting the recombination of details into a novel future event. The analysis of temporal distance revealed that the increasing recency of past events correlated with activity in the right parahippocampus gyrus (Brodmann area (BA) 35/36), while activity in the bilateral hippocampus was significantly correlated with the increasing remoteness of future events. We propose that the hippocampal response to the distance of future events reflects the increasing disparateness of details likely included in remote future events, and the intensive relational processing required for integrating such details into a coherent episodic simulation of the future. These findings provide further support for the constructive episodic simulation hypothesis (Schacter and Addis (2007) Philos Trans R Soc Lond B Biol Sci 362:773–786) and highlight the involvement of the hippocampus in relational processing during elaboration of future events. VC 2007 Wiley-Liss, Inc. KEY WORDS: episodic; autobiographical memory; future; fMRI; parametric modulation

Donna Rose Addis; Daniel L. Schacter

2008-01-01T23:59:59.000Z

227

Jayasumana ”Performance tradeoffs of shared limited range wavelength conversion schemes  

E-Print Network (OSTI)

Abstract — Performance of all-optical switches that employee different types of limited-range wavelength converters (LRWC) are investigated. Previous work has shown that there is a remarkable improvement in blocking probability while using LRWC over full range conversion, but has not considered the coincident effect of conversion resources sharing. We consider the case where an incoming wavelength can be converted to a range of outgoing wavelengths, where d is the range of conversion. The simulation results demonstrate that the performance improvement obtained by full range wavelength conversion can almost be achieved by using a fractional ranged ranged LRWC. I.

Fahad A. Al-zahrani; Abdulgader A. Habiballa; Ayman G. Fayoumi; Anura P. Jayasumana

2005-01-01T23:59:59.000Z

228

Millimeter Laser Ranging to the Moon: a comprehensive theoretical model for advanced data analysis  

E-Print Network (OSTI)

Lunar Laser Ranging (LLR) measurements are crucial for advanced exploration of the evolutionary history of the lunar orbit, the laws of fundamental gravitational physics, selenophysics and geophysics as well as for future human missions to the Moon. Current LLR technique measures distance to the Moon with a precision approaching one millimeter that strongly demands further significant improvement of the theoretical model of the orbital and rotational dynamics of the Earth-Moon system. This model should inevitably be based on the theory of general relativity, fully incorporate the relevant geophysical/selenophysical processes and rely upon the most recent IAU standards in order to give us the opportunity to perform the most precise fundamental test of general relativity in the solar system in robust and physically-adequate way. The talk discusses new methods and approaches in developing such a mathematical model.

Sergei Kopeikin

2009-02-20T23:59:59.000Z

229

Millimeter Laser Ranging to the Moon: a comprehensive theoretical model for advanced data analysis  

E-Print Network (OSTI)

Lunar Laser Ranging (LLR) measurements are crucial for advanced exploration of the evolutionary history of the lunar orbit, the laws of fundamental gravitational physics, selenophysics and geophysics as well as for future human missions to the Moon. Current LLR technique measures distance to the Moon with a precision approaching one millimeter that strongly demands further significant improvement of the theoretical model of the orbital and rotational dynamics of the Earth-Moon system. This model should inevitably be based on the theory of general relativity, fully incorporate the relevant geophysical/selenophysical processes and rely upon the most recent IAU standards in order to give us the opportunity to perform the most precise fundamental test of general relativity in the solar system in robust and physically-adequate way. The talk discusses new methods and approaches in developing such a mathematical model.

Kopeikin, Sergei

2009-01-01T23:59:59.000Z

230

EVALUATION OF RANGE ESTIMATES FOR TOYOTA FCHV-ADV UNDER OPEN ROAD DRIVING CONDITIONS  

DOE Green Energy (OSTI)

The objective of this evaluation was to independently and objectively verify driving ranges of >400 miles announced by Toyota for its new advanced Fuel Cell Hybrid Vehicle (FCHV-adv) utilizing 70 MPa compressed hydrogen. To accomplish this, participants from both Savannah River National Laboratory (SRNL) and the National Renewable Energy Laboratory (NREL) witnessed and participated in a 2-vehicle evaluation with Toyota Motor Engineering & Manufacturing North America, Inc. (TEMA) over a typical open road route for over 11 hours in one day with all relevant data recorded. SRNL and TEMA first entered into discussions of verifying the range of the advanced Toyota Fuel Cell Hybrid Vehicle (FCHV-adv) in August 2008 resulting from reported 400+ mile range by Toyota. After extended negotiations, a CRADA agreement, SRNS CRADA No. CR-04-003, was signed on May 6, 2009. Subsequently, on June 30, 2009 SRNL and NREL participated in an all-day evaluation of the FCHV-adv with TEMA to determine the real-world driving range of this vehicle through on-road driving on an extended round-trip drive between Torrance and San Diego, California. SRNL and NREL observed the vehicles being refueled at Toyota's headquarters the day before the evaluation in Torrance, CA on June 29. At 8:00 AM on June 30, the vehicles departed Torrance north toward downtown Los Angeles, then west to the Pacific Coast Highway, and down to San Diego. After lunch the vehicles retraced their route back to Torrance. The traffic encountered was much heavier than anticipated, causing the vehicles to not return to Torrance until 9 PM. Each vehicle was driven by the same Toyota driver all day, with one SRNL/NREL observer in each vehicle the entire route. Data was logged by Toyota and analyzed by NREL. The maximum range of the FCHV-adv vehicles was calculated to be 431 miles under these driving conditions. This distance was calculated from the actual range of 331.5 miles during over 11 hours driving, plus 99.5 miles of additional range calculated from the average fuel economy from the day times the remaining usable hydrogen. Driving range results were independently calculated for each vehicle, and these results averaged together to achieve the final 431-mile range estimate. The uncertainty on these results is relatively low due to eight independent measurements of distance and six separate measurements of hydrogen usage, with a resulting uncertainty of {+-} 7 miles ({+-} 1.7%) based on spread between the low and high values from all of the multiple measurements. The average fuel economy resulting from the day's driving was 68.3 miles/kg and the total hydrogen stored on-board at 70 MPa was calculated to be 6.31 kg. The speed profiles were analyzed and compared to standard driving cycles, and were determined to be of moderate aggressiveness. The city segments of the route had average speeds slightly greater than the UDDS cycle and the highway segments were close to the HWFET & US06 cycles. The average acceleration for the highway driving was very close to the HWFET cycle, and the city portions had average accelerations lower than the UDDS and US06 cycles. We feel that the route accurately reflects realistic driving behaviors in southern California on a typical weekday, and is an appropriate benchmark to use in the verification of a fuel cell vehicle's range.

Anton, D.; Wipke, K.; Sprik, S.

2009-07-10T23:59:59.000Z

231

Evaluation of sight distance as a criterion for prioritizing rail-highway intersections in Texas  

E-Print Network (OSTI)

Priority or hazard indices are used by the states to rank their rail-highway intersections according to relative hazard to aid in locating crossings for treatment of conditions and/or improvements in warning devices. The Texas Priority Index has been effective over the years in identifying particularly hazardous rail-highway intersections based on high vehicle volumes, train volumes, and accident histories, and these crossings have been treated or improved. Many of the remaining crossings, however, are not well discriminated in terms of their need for improvement; many crossings have the same index number. The objective of this research was to evaluate sight distance as a criterion for prioritizing rail-highway intersections in Texas to help distinguish between the crossings with similar or identical priority index numbers. Accident and sight distance data were compiled and analyzed. A sight distance variable was incorporated into the current Texas Priority Index and evaluated for its effects on the overall ranking of the rail-highway intersections. A state hazard index was chosen from a state-of-the-practice review with which to compare the current and revised Texas Priority Indices. Finally, the effectiveness of each of the indices was predicted in terms of the distribution of priority index numbers and their ability to move the most potentially hazardous crossings up in the rankings. It was concluded from the accident analysis that sight distance contributed to more vehicle-train accidents than any other factor. Further, improvements to warning devices at passive crossings would effectively reduce the overall sight obstruction, reduce the number of train involved accidents, and thus, reduce the number of injuries and fatalities resulting from accidents at rail-highway intersections. It was concluded from the field data analysis that the Method 1 revised Texas Priority Index was the most effective index of the four priority indices evaluated in this thesis for ranking crossings in terms of exposure, accident history, sight distance, and protection type. The Method 1 revised index was effective at redistributing the individual index numbers in the rank and identifying crossings with restricted sight distance while conserving the significance of the exposure values.

Pecheux, Kelley Klaver

1993-01-01T23:59:59.000Z

232

Measuring Range Anxiety: the Substitution-Emergency-Detour (SED) Method  

Science Conference Proceedings (OSTI)

Range anxiety has been widely recognized as a critical barrier for battery electric vehicles (BEV), but its measurement method is lacking. Such a knowledge gap makes it difficult to analyse the competiveness of and the demand for BEVs. This study develops the Substitution-Emergency-Detour (SED) method to measure the range anxiety cost, and conducts sensitivity analysis of range anxiety cost with respect to nine factors. It is found that the most effective ways to reduce range anxiety are reducing driving intensity, increasing the vehicle range, extending the vehicle range with better charging infrastructure. Better household vehicle flexibility and less range uncertainty can also significantly reduce range anxiety. The SED method and the numerical results are expected to contribute to better understanding of the range anxiety barrier and the BEV demand.

Lin, Zhenhong [ORNL

2012-01-01T23:59:59.000Z

233

Time-Distance Imaging of Solar Far-Side Active Regions  

E-Print Network (OSTI)

It is of great importance to monitor large solar active regions in the far-side of the Sun for space weather forecast, in particular, to predict their appearance before they rotate into our view from the solar east limb. Local helioseismology techniques, including helioseismic holography and time-distance, have successfully imaged solar far-side active regions. In this Letter, we further explore the possibility of imaging and improving the image quality of solar far-side active regions by use of time-distance helioseismology. In addition to the previously used scheme with four acoustic signal skips, a five-skip scheme is also included in this newly developed technique. The combination of both four- and five-skip far-side images significantly enhances the signal-to-noise ratio in the far-side images, and reduces spurious signals. The accuracy of the far-side active region imaging is also assessed using one whole year solar observation.

Junwei Zhao

2007-06-19T23:59:59.000Z

234

Time-Distance Imaging of Solar Far-Side Active Regions  

E-Print Network (OSTI)

It is of great importance to monitor large solar active regions in the far-side of the Sun for space weather forecast, in particular, to predict their appearance before they rotate into our view from the solar east limb. Local helioseismology techniques, including helioseismic holography and time-distance, have successfully imaged solar far-side active regions. In this Letter, we further explore the possibility of imaging and improving the image quality of solar far-side active regions by use of time-distance helioseismology. In addition to the previously used scheme with four acoustic signal skips, a five-skip scheme is also included in this newly developed technique. The combination of both four- and five-skip far-side images significantly enhances the signal-to-noise ratio in the far-side images, and reduces spurious signals. The accuracy of the far-side active region imaging is also assessed using one whole year solar observation.

Zhao, Junwei

2007-01-01T23:59:59.000Z

235

Fast Tree: Computing Large Minimum-Evolution Trees with Profiles instead of a Distance Matrix  

Science Conference Proceedings (OSTI)

Gene families are growing rapidly, but standard methods for inferring phylogenies do not scale to alignments with over 10,000 sequences. We present FastTree, a method for constructing large phylogenies and for estimating their reliability. Instead of storing a distance matrix, FastTree stores sequence profiles of internal nodes in the tree. FastTree uses these profiles to implement neighbor-joining and uses heuristics to quickly identify candidate joins. FastTree then uses nearest-neighbor interchanges to reduce the length of the tree. For an alignment with N sequences, L sites, and a different characters, a distance matrix requires O(N^2) space and O(N^2 L) time, but FastTree requires just O( NLa + N sqrt(N) ) memory and O( N sqrt(N) log(N) L a ) time. To estimate the tree's reliability, FastTree uses local bootstrapping, which gives another 100-fold speedup over a distance matrix. For example, FastTree computed a tree and support values for 158,022 distinct 16S ribosomal RNAs in 17 hours and 2.4 gigabytes of memory. Just computing pairwise Jukes-Cantor distances and storing them, without inferring a tree or bootstrapping, would require 17 hours and 50 gigabytes of memory. In simulations, FastTree was slightly more accurate than neighbor joining, BIONJ, or FastME; on genuine alignments, FastTree's topologies had higher likelihoods. FastTree is available at http://microbesonline.org/fasttree.

N. Price, Morgan; S. Dehal, Paramvir; P. Arkin, Adam

2009-07-31T23:59:59.000Z

236

The distance and neutral environment of the massive stellar cluster Westerlund 1  

E-Print Network (OSTI)

The goal of this study is to determine a distance to Westerlund 1 independent of the characteristics of the stellar population and to study its neutral environment, using observations of atomic hydrogen. The HI observations are taken from the Southern Galactic Plane Survey to study HI absorption in the direction of the HII region created by the members of Westerlund 1 and to investigate its environment as observed in the HI line emission. A Galactic rotation curve was derived using the recently revised values for the Galactic centre distance of $R_\\odot = 7.6$ kpc, and the velocity of the Sun around the Galactic centre of $\\Theta_\\odot = 214$ km s$^{-1}$. The newly determined rotation model leads us to derive a distance of $3.9\\pm 0.7$ kpc to Westerlund 1, consistent with a location in the Scutum-Crux Arm. Included in this estimate is a very careful investigation of possible sources of error for the Galactic rotation curve. We also report on small expanding HI features around the cluster with a maximum dynamic age of 600,000 years and a larger bubble which has a minimum dynamic age of 2.5 million years. Additionally we re-calculated the kinematic distances to nearby HII regions and supernova remnants based on our new Galaxic rotation curve. We propose that in the early stages of the development of Wd 1 a large interstellar bubble of diameter about 50 pc was created by the cluster members. This bubble has a dynamic age similar to the age of the cluster. Small expanding bubbles, with dynamical ages $\\sim 0.6$ Myr are found around Wd 1, which we suggest consist of recombined material lost by cluster members through their winds.

R. Kothes; S. M. Dougherty

2007-04-23T23:59:59.000Z

237

Long-distance entanglement in many-body atomic and optical systems  

E-Print Network (OSTI)

We discuss the phenomenon of long-distance entanglement in the ground state of quantum spin models, its use in high-fidelity and robust quantum communication, and its realization in many-body systems of ultracold atoms in optical lattices and in arrays of coupled optical cavities. We investigate different patterns of site-dependent interaction couplings, singling out two general settings: Patterns that allow for perfect long-distance entanglement (LDE) in the ground state of the system, namely such that the end-to-end entanglement remains finite in the thermodynamic limit, and patterns of quasi long-distance entanglement (QLDE) in the ground state of the system, namely, such such that the end-to-end entanglement vanishes with a very slow power-law decay as the length of the spin chain is increased. We discuss physical realizations of these models in ensembles of ultracold bosonic atoms loaded in optical lattices. We show how, using either suitably engineered super-lattice structures or exploiting the presence of edge impurities in lattices with single periodicity, it is possible to realize models endowed with nonvanishing LDE or QLDE. We then study how to realize models that optimize the robustness of QLDE at finite temperature and in the presence of imperfections using suitably engineered arrays of coupled optical cavities. We finally introduce LDE-based schemes of long-distance quantum teleportation in linear arrays of coupled cavities and show that they allow for high-fidelity and high success rates even at moderately high temperatures.

Salvatore M. Giampaolo; Fabrizio Illuminati

2009-09-30T23:59:59.000Z

238

THE MEGAMASER COSMOLOGY PROJECT. V. AN ANGULAR-DIAMETER DISTANCE TO NGC 6264 AT 140 Mpc  

SciTech Connect

We present the direct measurement of the Hubble constant, yielding the direct measurement of the angular-diameter distance to NGC 6264 using the H{sub 2}O megamaser technique. Our measurement is based on sensitive observations of the circumnuclear megamaser disk from four observations with the Very Long Baseline Array, the Green Bank Telescope (GBT), and the Effelsberg telescope. We also monitored the maser spectral profile for 2.3 years using the GBT to measure accelerations of maser lines by tracking their line-of-sight velocities as they change with time. The measured accelerations suggest that the systemic maser spots have a significantly wider radial distribution than in the archetypal megamaser in NGC 4258. We model the maser emission as arising from a circumnuclear disk with orbits dominated by the central black hole. The best fit of the data gives a Hubble constant of H{sub 0} = 68 {+-} 9 km s{sup -1} Mpc{sup -1}, which corresponds to an angular-diameter distance of 144 {+-} 19 Mpc. In addition, the fit also gives a mass of the central black hole of (3.09 {+-} 0.42) Multiplication-Sign 10{sup 7} M{sub Sun }. The result demonstrates the feasibility of measuring distances to galaxies located well into the Hubble flow by using circumnuclear megamaser disks.

Kuo, C. Y. [Academia Sinica Institute of Astronomy and Astrophysics, P.O. Box 23-141, Taipei 10617, Taiwan (China); Braatz, J. A.; Lo, K. Y.; Condon, J. J.; Impellizzeri, C. M. V. [National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903 (United States); Reid, M. J. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Henkel, C. [Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69, D-53121 Bonn (Germany)

2013-04-20T23:59:59.000Z

239

Long-distance entanglement and quantum teleportation in XX spin chains  

E-Print Network (OSTI)

Isotropic XX models of one-dimensional spin-1/2 chains are investigated with the aim to elucidate the formal structure and the physical properties that allow these systems to act as channels for long-distance, high-fidelity quantum teleportation. We introduce two types of models: I) open, dimerized XX chains, and II) open XX chains with small end bonds. For both models we obtain the exact expressions for the end-to-end correlations and the scaling of the energy gap with the length of the chain. We determine the end-to-end concurrence and show that model I) supports true long-distance entanglement at zero temperature, while model II) supports {\\it ``quasi long-distance''} entanglement that slowly falls off with the size of the chain. Due to the different scalings of the gaps, respectively exponential for model I) and algebraic in model II), we demonstrate that the latter allows for efficient qubit teleportation with high fidelity in sufficiently long chains even at moderately low temperatures.

Venuti, L Campos; Illuminati, F; Zanardi, P

2007-01-01T23:59:59.000Z

240

SLOPE STABILITY EVALUATION AND EQUIPMENT SETBACK DISTANCES FOR BURIAL GROUND EXCAVATIONS  

Science Conference Proceedings (OSTI)

After 1970 Transuranic (TRU) and suspect TRU waste was buried in the ground with the intention that at some later date the waste would be retrieved and processed into a configuration for long term storage. To retrieve this waste the soil must be removed (excavated). Sloping the bank of the excavation is the method used to keep the excavation from collapsing and to provide protection for workers retrieving the waste. The purpose of this paper is to document the minimum distance (setback) that equipment must stay from the edge of the excavation to maintain a stable slope. This evaluation examines the equipment setback distance by dividing the equipment into two categories, (1) equipment used for excavation and (2) equipment used for retrieval. The section on excavation equipment will also discuss techniques used for excavation including the process of benching. Calculations 122633-C-004, 'Slope Stability Analysis' (Attachment A), and 300013-C-001, 'Crane Stability Analysis' (Attachment B), have been prepared to support this evaluation. As shown in the calculations the soil has the following properties: Unit weight 110 pounds per cubic foot; and Friction Angle (natural angle of repose) 38{sup o} or 1.28 horizontal to 1 vertical. Setback distances are measured from the top edge of the slope to the wheels/tracks of the vehicles and heavy equipment being utilized. The computer program utilized in the calculation uses the center of the wheel or track load for the analysis and this difference is accounted for in this evaluation.

MCSHANE DS

2010-03-25T23:59:59.000Z

Note: This page contains sample records for the topic "tp4 range distance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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241

Long-distance entanglement and quantum teleportation in XX spin chains  

E-Print Network (OSTI)

Isotropic XX models of one-dimensional spin-1/2 chains are investigated with the aim to elucidate the formal structure and the physical properties that allow these systems to act as channels for long-distance, high-fidelity quantum teleportation. We introduce two types of models: I) open, dimerized XX chains, and II) open XX chains with small end bonds. For both models we obtain the exact expressions for the end-to-end correlations and the scaling of the energy gap with the length of the chain. We determine the end-to-end concurrence and show that model I) supports true long-distance entanglement at zero temperature, while model II) supports {\\it ``quasi long-distance''} entanglement that slowly falls off with the size of the chain. Due to the different scalings of the gaps, respectively exponential for model I) and algebraic in model II), we demonstrate that the latter allows for efficient qubit teleportation with high fidelity in sufficiently long chains even at moderately low temperatures.

L. Campos Venuti; S. M. Giampaolo; F. Illuminati; P. Zanardi

2007-08-03T23:59:59.000Z

242

Long-distance entanglement and quantum teleportation in XX spin chains  

SciTech Connect

Isotropic XX models of one-dimensional spin-1/2 chains are investigated with the aim to elucidate the formal structure and the physical properties that allow these systems to act as channels for long-distance, high-fidelity quantum teleportation. We introduce two types of models: (i) open, dimerized XX chains, and (ii) open XX chains with small end bonds. For both models we obtain the exact expressions for the end-to-end correlations and the scaling of the energy gap with the length of the chain. We determine the end-to-end concurrence and show that model (i) supports true long-distance entanglement at zero temperature, while model (ii) supports 'quasi-long-distance' entanglement that slowly falls off with the size of the chain. Due to the different scalings of the gaps, respectively exponential for model (i) and algebraic in model (ii), we demonstrate that the latter allows for efficient qubit teleportation with high fidelity in sufficiently long chains even at moderately low temperatures.

Campos Venuti, L. [ISI Foundation for Scientific Interchange, Villa Gualino, Viale Settimio Severo 65, I-10133 Turin (Italy); Giampaolo, S. M. [Dipartimento di Matematica e Informatica, Universita degli Studi di Salerno, Via Ponte don Melillo, I-84084 Fisciano (Italy); CNR-INFM Coherentia, Napoli (Italy); CNISM Unita di Salerno and INFN Sezione di Napoli, Gruppo collegato di Salerno, Baronissi (Italy); Illuminati, F. [Dipartimento di Matematica e Informatica, Universita degli Studi di Salerno, Via Ponte don Melillo, I-84084 Fisciano (Italy); CNR-INFM Coherentia, Napoli (Italy); CNISM Unita di Salerno and INFN Sezione di Napoli, Gruppo collegato di Salerno, Baronissi (Italy); ISI Foundation for Scientific Interchange, Villa Gualino, Viale Settimio Severo 65, I-10133 Turin (Italy); Zanardi, P. [Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484 (United States); ISI Foundation for Scientific Interchange, Villa Gualino, Viale Settimio Severo 65, I-10133 Turin (Italy)

2007-11-15T23:59:59.000Z

243

Tonopah test range - outpost of Sandia National Laboratories  

Science Conference Proceedings (OSTI)

Tonopah Test Range is a unique historic site. Established in 1957 by Sandia Corporation, Tonopah Test Range in Nevada provided an isolated place for the Atomic Energy Commission to test ballistics and non-nuclear features of atomic weapons. It served this and allied purposes well for nearly forty years, contributing immeasurably to a peaceful conclusion to the long arms race remembered as the Cold War. This report is a brief review of historical highlights at Tonopah Test Range. Sandia`s Los Lunas, Salton Sea, Kauai, and Edgewood testing ranges also receive abridged mention. Although Sandia`s test ranges are the subject, the central focus is on the people who managed and operated the range. Comments from historical figures are interspersed through the narrative to establish this perspective, and at the end a few observations concerning the range`s future are provided.

Johnson, L.

1996-03-01T23:59:59.000Z

244

Two-Phase Westward Encroachment of Basin and Range Extension...  

Open Energy Info (EERE)

block to >150% in the Wassuk and Singatse Ranges to the east. Geological and apatite fission track data from exhumed upper crustal sections in the Wassuk and Singatse Ranges...

245

Short-Range Ensemble Forecasts of Precipitation Type  

Science Conference Proceedings (OSTI)

Short-range ensemble forecasting is extended to a critical winter weather problem: forecasting precipitation type. Forecast soundings from the operational NCEP Short-Range Ensemble Forecast system are combined with five precipitation-type ...

Matthew S. Wandishin; Michael E. Baldwin; Steven L. Mullen; John V. Cortinas Jr.

2005-08-01T23:59:59.000Z

246

Verification of Eta–RSM Short-Range Ensemble Forecasts  

Science Conference Proceedings (OSTI)

Motivated by the success of ensemble forecasting at the medium range, the performance of a prototype short-range ensemble forecast system is examined. The ensemble dataset consists of 15 case days from September 1995 through January 1996. There ...

Thomas M. Hamill; Stephen J. Colucci

1997-06-01T23:59:59.000Z

247

CourseVis: A graphical student monitoring tool for supporting instructors in web-based distance courses  

Science Conference Proceedings (OSTI)

This paper presents CourseVis, a system that takes a novel approach of using Web log data generated by course management systems (CMSs) to help instructors become aware of what is happening in distance learning classes. Specifically, techniques from ... Keywords: Information visualization, Student tracking, Web-based distance education

Riccardo Mazza; Vania Dimitrova

2007-02-01T23:59:59.000Z

248

Some comments on goodness-of-fit tests for the parametric form of the copula based on L2-distances  

Science Conference Proceedings (OSTI)

In a recent paper Fermanian (2005) [9] studied a goodness-of-fit test for the parametric form of a copula, which is based on an L^2-distance between a parametric and a nonparametric estimate of the copula density. In the present paper we investigate ... Keywords: 62G, 62P, Copula, Goodness-of-fit tests, L2-distance, Parametric bootstrap

Axel Bücher; Holger Dette

2010-03-01T23:59:59.000Z

249

Correction of distance-dependent blurring in projection data for fully three-dimensional electron microscopic reconstruction  

Science Conference Proceedings (OSTI)

We propose a method of correction for distance-dependent blurring, which is one of the limiting factors to achieving higher resolution in 3D reconstructions of biological specimens from 2D projections obtained by an electron microscope. Our proposed ... Keywords: contrast transfer function, distance-dependent blurring, electron microscopy, stationary phase

Joanna Klukowska; Gabor T. Herman; Ivan G. Kazantsev

2010-04-01T23:59:59.000Z

250

Geographic Information System At Northern Basin & Range Region...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Northern Basin & Range Region (Blewitt, Et Al., 2003) Exploration...

251

Geographic Information System At Nw Basin & Range Region (Nash...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Nw Basin & Range Region (Nash & Johnson, 2003) Exploration Activity...

252

Geographic Information System At Northern Basin & Range Region...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Northern Basin & Range Region (Nash & Johnson, 2003) Exploration Activity...

253

A Low-Power Wide-Linear-Range Transconductance Amplifier  

Science Conference Proceedings (OSTI)

The linear range of approximately ±75 mV of traditional subthreshold transconductance amplifiers is too small for certain applications—for example, for filters in electronic cochleas, where it is desirable to handle loud sounds without ... Keywords: amplifier, cochlea, degeneration, dynamic range, low-power, noise, transconductance, wide-linear-range

Rahul Sarpeshkar; Richard F. Lyon; Carver Mead

1997-05-01T23:59:59.000Z

254

High dynamic range texture compression for graphics hardware  

Science Conference Proceedings (OSTI)

In this paper, we break new ground by presenting algorithms for fixed-rate compression of high dynamic range textures at low bit rates. First, the S3TC low dynamic range texture compression scheme is extended in order to enable compression of HDR data. ... Keywords: graphics hardware, high dynamic range images, image compression, texture compression

Jacob Munkberg; Petrik Clarberg; Jon Hasselgren; Tomas Akenine-Möller

2006-07-01T23:59:59.000Z

255

Marker ReDistancing/Level Set Method for High-Fidelity Implicit Interface Tracking  

SciTech Connect

A hybrid of the Front-Tracking (FT) and the Level-Set (LS) methods is introduced, combining advantages and removing drawbacks of both methods. The kinematics of the interface is treated in a Lagrangian (FT) manner, by tracking markers placed at the interface. The markers are not connected – instead, the interface topology is resolved in an Eulerian (LS) framework, by wrapping a signed distance function around Lagrangian markers each time the markers move. For accuracy and efficiency, we have developed a high-order “anchoring” algorithm and an implicit PDE-based re-distancing. We have demonstrated that the method is 3rd-order accurate in space, near the markers, and therefore 1st-order convergent in curvature; in contrast to traditional PDE-based re-initialization algorithms, which tend to slightly relocate the zero Level Set and can be shown to be non-convergent in curvature. The implicit pseudo-time discretization of the re-distancing equation is implemented within the Jacobian-Free Newton Krylov (JFNK) framework combined with ILU(k) preconditioning. We have demonstrated that the steady-state solutions in pseudo-time can be achieved very efficiently, with iterations (CFL ), in contrast to the explicit re-distancing which requires 100s of iterations with CFL . The most cost-effective algorithm is found to be a hybrid of explicit and implicit discretizations, in which we apply first 10-15 iterations with explicit discretization (to bring the initial guess to the ball of convergence for the Newton’s method) and then finishing with 2-3 implicit steps, bringing the re-distancing equation to a complete steady-state. The eigenscopy of the JFNK-ILU(k) demonstrates the efficiency of the ILU(k) preconditioner, which effectively cluster eigenvalues of the otherwise extremely ill-conditioned Jacobian matrices, thereby enabling the Krylov (GMRES) method to converge with iterations, with only a few levels of ILU fill-ins. Importantly, due to the Level Set localization, the bandwidth of the Jacobian matrix is nearly constant, and the ILU preconditioning scales as , which implies efficiency and good scalability of the overall algorithm. The numerical examples include the well-established tests for interface kinematics under translational, rotational and tearing/stretching motion. We have shown that the mass conservation is not an issue anymore, as demonstrated using the Rider&Kothe’s time-reversed tests with extreme deformation. We are able to stretch interface structures to the under-resolved/subgrid (on the chosen Eulerian mesh) scales, and recover them back without any change in shape/loss of mass.

Robert Nourgaliev; Samet Kadioglu; Vincent Mousseau; Dana Knoll

2010-02-01T23:59:59.000Z

256

Tonopah Test Range Post-Closure Inspection Annual Report, Tonopah Test Range, Nevada, Calendar Year 2002  

Science Conference Proceedings (OSTI)

This Post-Closure Inspection Annual Report provides documentation of the semiannual inspections conducted at the following Corrective Action Units (CAU)s: CAU 400: Bomblet Pit and Five Points Landfill; CAU 404: Roller Coaster Lagoons and Trench; CAU 407: Roller Coaster RadSafe Area; CAU 424: Area 3 Landfill Complexes; CAU 426: Cactus Spring Waste Trenches; CAU 427: Septic Waste Systems 2, 6; and CAU 453: Area 9 UXO Landfill, all located at the Tonopah Test Range, Nevada. Post-closure inspections are not required at CAU 400 but are conducted to monitor vegetation and fencing at the site. Site inspections were conducted in May and November 2002. All site inspections were made after Nevada Division of Environmental Protection (NDEP) approval of the appropriate Closure Report (CR), excluding CAU 400 which did not require a CR, and were conducted in accordance with the Post-Closure Inspection Plans in the NDEP-approved CRs. Post-closure inspections conducted during 2002 identified several areas requiring maintenance/repairs. Maintenance work and proposed additional monitoring are included in the appropriate section for each CAU. This report includes copies of the Post-Closure Inspection Plans, Post-Closure Inspection Checklists, copies of the field notes, photographs, and the Post-Closure Vegetative Monitoring Report. The Post-Closure Inspection Plan for each CAU is located in Attachment A. Post-Closure Inspection Checklists are in Attachment B. Copies of the field notes from each inspection are included in Attachment C. Attachment D consists of the photographic logs and photographs of the sites. The post-closure vegetative monitoring report for calendar year 2002 is included in Attachment E.

R. B. Jackson

2003-08-01T23:59:59.000Z

257

Spectral Budget Analysis of the Short-Range Forecast Error of the NMC Medium-Range Forecast Model  

Science Conference Proceedings (OSTI)

The budget of the systematic component of the short-range forecast error in the National Meteorological Center's Medium-Range Forecast Model (NMC MRF) is examined. The budget is computed for the spectral coefficients and the variances of ...

Masao Kanamitsu; Suranjana Saha

1995-06-01T23:59:59.000Z

258

Seismicity of the Coso Range, California | Open Energy Information  

Open Energy Info (EERE)

of the Coso Range, California of the Coso Range, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Seismicity of the Coso Range, California Details Activities (1) Areas (1) Regions (0) Abstract: A 16-station seismographic network, approximately 40 km north-south by 30 km east-west, was installed in the Coso Range, California, in September 1975 as part of a geological and geophysical assessment of the geothermal resource potential of range. During the first 2 years of network operations, 4216 local earthquakes (0.5< or =m< or =3.9) defined zones of seismicity that strike radially outward from a Pleistocene rhyolite field located near the center of the Coso Range. Most earthquakes were located in zones showing a general northwest trend across the range.

259

Numerical Modeling of Transient Basin and Range Extensional Geothermal  

Open Energy Info (EERE)

Transient Basin and Range Extensional Geothermal Transient Basin and Range Extensional Geothermal Systems Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Numerical Modeling of Transient Basin and Range Extensional Geothermal Systems Abstract A suite of models utilizing a range of bulkrock permeabilities were developed to analyze thetransient behavior of basin and range extensionalgeothermal systems, and particularly, the evolution ofthe system temperature with time. Each modelconsists of two mountain ranges (~1 km relief fromthe valley floor) separated by a thick sequence (about4 km) of clastic sediments derived from the adjacentranges, and a relatively permeable, high angle faultthat functions as a conduit for subsurface fluids. Thisgeometry is typical of Basin and Range extensionalsystems.We

260

Northwest Basin and Range Geothermal Region | Open Energy Information  

Open Energy Info (EERE)

Northwest Basin and Range Geothermal Region Northwest Basin and Range Geothermal Region Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Northwest Basin and Range Geothermal Region Details Areas (48) Power Plants (8) Projects (15) Techniques (33) The Basin and Range Province in northwestern Nevada and northeastern California is characterized by late Cretaceous - early Cenozoic regional erosion, Oligocene - Miocene volcanism, and subsequent late Miocene extension. Extensional faulting in northwestern Nevada began everywhere at 12 Ma and has continued up to the present. Faulting in the Warner Range in northeastern California can only be constrained to have begun between 14 and 3 Ma, but may represent westward migration of Basin and Range extension during the Pliocene. Compared to the many parts of the Basin and Range in

Note: This page contains sample records for the topic "tp4 range distance" 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

Bursting synchronization in networks with long-range coupling mediated by a diffusing chemical substance  

E-Print Network (OSTI)

Many networks of physical and biological interest are characterized by a long-range coupling mediated by a chemical which diffuses through a medium in which oscillators are embedded. We considered a one-dimensional model for this effect for which the diffusion is fast enough so as to be implemented through a coupling whose intensity decays exponentially with the lattice distance. In particular, we analyzed the bursting synchronization of neurons described by two timescales (spiking and bursting activity), and coupled through such a long-range interaction network. One of the advantages of the model is that one can pass from a local (Laplacian) type of coupling to a global (all-to-all) one by varying a single parameter in the interaction term. We characterized bursting synchronization using an order parameter which undergoes a transition as the coupling parameters are changed through a critical value. We also investigated the role of an external time-periodic signal on the bursting synchronization properties of the network. We show potential applications in the control of pathological rhythms in biological neural networks.

R. L. Viana; A. M. Batista; C. A. S. Batista; J. C. A. de Pontes; F. A. dos S. Silva; S. R. Lopes

2011-09-15T23:59:59.000Z

262

Bremsstrahlung versus Monoenergetic Photon Dose and Photonuclear Stimulation Comparisons At Long Standoff Distances  

SciTech Connect

Energetic photon sources with energies greater than 6 MeV continue to be recognized as viable source for various types of inspection applications, especially those related to nuclear and/or explosive material detection. These energetic photons can be produced as a continuum of energies (i.e., bremsstrahlung distribution) or as a set of one or more discrete photon energies (i.e., monoenergetic distribution). This paper will provide a follow-on extension of the photon dose comparison presented at the 9th International Conference on Applications of Nuclear Techniques (June 2008). The latter paper showed the comparative advantages and disadvantages of the photon doses provided by these two energetic interrogation sources and highlighted the higher energy advantage of the bremsstrahlung source, especially at long standoff distances (i.e., distance from source to the inspected object). Specifically, this paper will pursue this higher energy photon inspection advantage (up to 100 MeV) by providing dose and stimulated photonuclear interaction predictions for air and an infinitely dilute interrogated material (used for comparative interaction rate assessments since it excludes material self-shielding) as the interrogation object positioned forward on the inspection beam axis at increasing standoff distances. In addition to the direct energetic photon-induced stimulation, the predictions will identify the importance of any secondary downscattered/attenuated source-term effects arising from the photon transport in the intervening atmosphere. *Supported in part by the Defense Threat Reduction Agency and Department of Energy (DOE) Idaho Operations Office under Contract Number DE-AC07-05ID14517.

J. L. Jones; J.W. Sterbentz; W.Y. Yoon

2009-06-01T23:59:59.000Z

263

A Comparison of Four Indices for Combining Distance and Dose Differences  

Science Conference Proceedings (OSTI)

Purpose: When one is comparing two dose distributions, a number of methods have been published to combine dose difference and distance to agreement into a single measure. Some have been defined as pass/fail indices and some as numeric indices. We show that the pass/fail indices can all be used to derive numeric indices, and we compare the results of using these indices to evaluate one-dimensional (1D) and three-dimensional (3D) dose distributions, with the aim of selecting the most appropriate index for use in different circumstances. Methods and Materials: The indices compared are the gamma index, the kappa index, the index in International Commission on Radiation Units and Measurements Report 83, and a box index. Comparisons are made for 1D and 3D distributions. The 1D distribution is chosen to have a variety of dose gradients. The 3D distribution is taken from a clinical treatment plan. The effect of offsetting distributions by known distances and doses is studied. Results: The International Commission on Radiation Units and Measurements Report 83 index causes large discontinuities unless the dose gradient cutoff is set to equal the ratio of the dose tolerance to the distance tolerance. If it is so set, it returns identical results to the kappa index. Where the gradient is very high or very low, all the indices studied in this article give similar results for the same tolerance values. For moderate gradients, they differ, with the box index being the least strict, followed by the gamma index, and with the kappa index being the most strict. Conclusions: If the clinical tolerances are much greater than the uncertainties of the measuring system, the kappa index should be used, with tolerance values determined by the clinical tolerances. In cases where the uncertainties of the measuring system dominate, the box index will be best able to determine errors in the delivery system.

Thomas, Simon J., E-mail: simon.thomas@addenbrookes.nhs.uk [Department of Medical Physics, Addenbrooke's Hospital, Cambridge (United Kingdom); Cowley, Ian R. [Department of Medical Physics, Harley Street Clinic, London (United Kingdom)

2012-04-01T23:59:59.000Z

264

The design, construction, and operation of long-distance high-voltage electricity transmission technologies.  

SciTech Connect

This report focuses on transmission lines, which operate at voltages of 115 kV and higher. Currently, the highest voltage lines comprising the North American power grid are at 765 kV. The grid is the network of transmission lines that interconnect most large power plants on the North American continent. One transmission line at this high voltage was built near Chicago as part of the interconnection for three large nuclear power plants southwest of the city. Lines at this voltage also serve markets in New York and New England, also very high demand regions. The large power transfers along the West Coast are generally at 230 or 500 kV. Just as there are practical limits to centralization of power production, there are practical limits to increasing line voltage. As voltage increases, the height of the supporting towers, the size of the insulators, the distance between conductors on a tower, and even the width of the right-of-way (ROW) required increase. These design features safely isolate the electric power, which has an increasing tendency to arc to ground as the voltage (or electrical potential) increases. In addition, very high voltages (345 kV and above) are subject to corona losses. These losses are a result of ionization of the atmosphere, and can amount to several megawatts of wasted power. Furthermore, they are a local nuisance to radio transmission and can produce a noticeable hum. Centralized power production has advantages of economies of scale and special resource availability (for instance, hydro resources), but centralized power requires long-distance transfers of power both to reach customers and to provide interconnections for reliability. Long distances are most economically served at high voltages, which require large-scale equipment and impose a substantial footprint on the corridors through which power passes. The most visible components of the transmission system are the conductors that provide paths for the power and the towers that keep these conductors at a safe distance from each other and from the ground and the natural and built environment. Common elements that are generally less visible (or at least more easily overlooked) include the maintained ROW along the path of the towers, access roads needed for maintenance, and staging areas used for initial construction that may be restored after construction is complete. Also visible but less common elements along the corridor may include switching stations or substations, where lines of similar or different voltages meet to transfer power.

Molburg, J. C.; Kavicky, J. A.; Picel, K. C.

2008-03-03T23:59:59.000Z

265

Ultra-large distance modification of gravity from Lorentz symmetry breaking at the Planck scale  

E-Print Network (OSTI)

We present an extension of the Randall--Sundrum model in which, due to spontaneous Lorentz symmetry breaking, graviton mixes with bulk vector fields and becomes quasilocalized. The masses of KK modes comprising the four-dimensional graviton are naturally exponentially small. This allows to push the Lorentz breaking scale to as high as a few tenth of the Planck mass. The model does not contain ghosts or tachyons and does not exhibit the van Dam--Veltman--Zakharov discontinuity. The gravitational attraction between static point masses becomes gradually weaker with increasing of separation and gets replaced by repulsion (antigravity) at exponentially large distances.

D. S. Gorbunov; S. M. Sibiryakov

2005-06-08T23:59:59.000Z

266

Transmitting signals over interstellar distances: Three approaches compared in the context of the Drake equation  

E-Print Network (OSTI)

I compare three methods for transmitting signals over interstellar distances: radio transmitters, lasers and artificial transits. The quantitative comparison is based on physical quantities depending on energy cost and transmitting time L, the last parameter in the Drake equation. With our assumptions, radio transmitters are the most energy-effective, while macro-engineered planetary-sized objects producing artificial transits seem effective on the long term to transmit an attention-getting signal for a time that might be much longer than the lifetime of the civilization that produced the artifact.

Arnold, Luc

2013-01-01T23:59:59.000Z

267

Multispectral Imaging At Rangely Oilfield Area (Pickles & Cover, 2004) |  

Open Energy Info (EERE)

Multispectral Imaging At Rangely Oilfield Area (Pickles & Cover, 2004) Multispectral Imaging At Rangely Oilfield Area (Pickles & Cover, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Multispectral Imaging At Rangely Oilfield Area (Pickles & Cover, 2004) Exploration Activity Details Location Rangely Oilfield Area Exploration Technique Multispectral Imaging Activity Date Usefulness useful DOE-funding Unknown Notes Airborne hyperspectral imaging applied to determine vegetation and CO2 leakage in the Rangely oilfield of northwest Colorado - results may be useful for geothermal exploration. References W. Pickles, W. Cover (2004) Hyperspectral Geobotanical Remote Sensing For Co2 Storage Monitoring Retrieved from "http://en.openei.org/w/index.php?title=Multispectral_Imaging_At_Rangely_Oilfield_Area_(Pickles_%26_Cover,_2004)&oldid=511013"

268

Prospects in the orbital and rotational dynamics of the Moon with the advent of sub-centimeter lunar laser ranging  

E-Print Network (OSTI)

Lunar Laser Ranging (LLR) measurements are crucial for advanced exploration of the laws of fundamental gravitational physics and geophysics. Current LLR technology allows us to measure distances to the Moon with a precision approaching 1 millimeter. As NASA pursues the vision of taking humans back to the Moon, new, more precise laser ranging applications will be demanded, including continuous tracking from more sites on Earth, placing new CCR arrays on the Moon, and possibly installing other devices such as transponders, etc. Successful achievement of this goal strongly demands further significant improvement of the theoretical model of the orbital and rotational dynamics of the Earth-Moon system. This model should inevitably be based on the theory of general relativity, fully incorporate the relevant geophysical processes, lunar librations, tides, and should rely upon the most recent standards and recommendations of the IAU for data analysis. This paper discusses methods and problems in developing such a mat...

Kopeikin, S M; Pavlis, D; Brumberg, V A; Escapa, A; Getino, J; Gusev, A; Müller, J; Ni, W -T; Petrova, N

2007-01-01T23:59:59.000Z

269

Steady state deformation of the Coso Range, east central California...  

Open Energy Info (EERE)

Steady state deformation of the Coso Range, east central California, inferred from satellite radar interferometry Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home...

270

Modeling-Computer Simulations At Nevada Test And Training Range...  

Open Energy Info (EERE)

Page Edit History Facebook icon Twitter icon Modeling-Computer Simulations At Nevada Test And Training Range Area (Sabin, Et Al., 2004) Jump to: navigation, search GEOTHERMAL...

271

Developing National Long-Range Nuclear Energy Strategies (INPRO...  

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

"Developing National Long-Range Nuclear Energy Strategies (INPRO)" workshop (Aug. 8-19, 2011) Director's Welcome Organization Achievements Highlights Fact Sheets, Brochures & Other...

272

Hydrothermal Heat Discharge In The Cascade Range, Northwestern...  

Open Energy Info (EERE)

Hydrothermal heat discharge in the Cascade Range includes the heat discharged by thermal springs, by "slightly thermal" springs that are only a few degrees warmer than...

273

Geothermal Resource Analysis and Structure of Basin and Range...  

Open Energy Info (EERE)

Energy, 2003 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Geothermal Resource Analysis and Structure of Basin and Range Systems,...

274

Exploration and Development Techniques for Basin and Range Geothermal...  

Open Energy Info (EERE)

Council, 2002 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Exploration and Development Techniques for Basin and Range Geothermal...

275

A study of electric vehicle charging patterns and range anxiety.  

E-Print Network (OSTI)

?? Range anxiety is a relatively new concept which is defined as the fear of running out of power when driving an electric vehicle. To… (more)

Knutsen, Daniel

2013-01-01T23:59:59.000Z

276

The Extended Q-Range Small Angle Neutron Scattering ...  

Science Conference Proceedings (OSTI)

Abstract Scope, The Extended Q-Range Small Angle Neutron Scattering Diffractometer (EQ-SANS) at the Spallation Neutron Source (SNS) is a high intensity ...

277

Indonesia-Bringing a Range of Supported Mitigation Activities...  

Open Energy Info (EERE)

Page Edit with form History Facebook icon Twitter icon Indonesia-Bringing a Range of Supported Mitigation Activities in Selected Countries to the Next Level Jump to: navigation,...

278

Long-Range Transport and Global Fractionation of Persistent Organic...  

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

Long-Range Transport and Global Fractionation of Persistent Organic Pollutants: Insights from Multimedia Modeling Studies Speaker(s): Martin Scheringer Date: July 10, 2003 -...

279

Idaho National Laboratory Stand-Off Experiment Range draft environment...  

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

News Media Contact: Tim Jackson (208) 526-8484 For Immediate Release December 22, 2010 Idaho National Laboratory Stand-Off Experiment Range draft environmental assessment...

280

Geographic Information System At Nw Basin & Range Region (Coolbaugh...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Nw Basin & Range Region (Coolbaugh, Et Al., 2005 - 2) Exploration...

Note: This page contains sample records for the topic "tp4 range distance" 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

Geographic Information System At Northern Basin & Range Region...  

Open Energy Info (EERE)

Login | Sign Up Search Page Edit History Facebook icon Twitter icon Geographic Information System At Northern Basin & Range Region (Coolbaugh, Et Al., 2005 - 2) Jump to:...

282

Geographic Information System At Nw Basin & Range Region (Blewitt...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Nw Basin & Range Region (Blewitt, Et Al., 2003) Exploration Activity...

283

Structure, tectonics and stress field of the Coso Range, Inyo...  

Open Energy Info (EERE)

as having arcuate and ring faults both suggesting the presence of a circumscribed subsidence bowl or calderalike feature. New information suggests the Coso Range is situated in...

284

Thermal Gradient Holes At Northern Basin & Range Region (Pritchett...  

Open Energy Info (EERE)

Date Usefulness not useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

285

Direct-Current Resistivity Survey At Northern Basin & Range Region...  

Open Energy Info (EERE)

Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

286

Modeling-Computer Simulations At Northern Basin & Range Region...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Northern Basin & Range Region (Blackwell, Et Al., 2003) Exploration...

287

Modeling-Computer Simulations At Nw Basin & Range Region (Pritchett...  

Open Energy Info (EERE)

Login | Sign Up Search Page Edit History Facebook icon Twitter icon Modeling-Computer Simulations At Nw Basin & Range Region (Pritchett, 2004) Jump to: navigation, search...

288

Direct-Current Resistivity Survey At Nw Basin & Range Region...  

Open Energy Info (EERE)

Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

289

Modeling-Computer Simulations At Nw Basin & Range Region (Biasi...  

Open Energy Info (EERE)

Modeling-Computer Simulations At Nw Basin & Range Region (Biasi, Et Al., 2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer...

290

Key Property of Graphene Sustained Over Wide Ranges of ...  

Science Conference Proceedings (OSTI)

... a proportional relationship between energy and momentum ... an unexpectedly broad range of energies and densities ... that when the density of carriers ...

2012-11-14T23:59:59.000Z

291

Seismicity and seismic stress in the Coso Range, Coso geothermal...  

Open Energy Info (EERE)

California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Seismicity and seismic stress in the Coso Range, Coso geothermal field, and Indian...

292

Data Acquisition-Manipulation At Northern Basin & Range Region...  

Open Energy Info (EERE)

Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon Data Acquisition-Manipulation At Northern Basin & Range Region (Coolbaugh, Et Al., 2005 - 2)...

293

Data Acquisition-Manipulation At Nw Basin & Range Region (Coolbaugh...  

Open Energy Info (EERE)

Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon Data Acquisition-Manipulation At Nw Basin & Range Region (Coolbaugh, Et Al., 2005 - 2) Jump...

294

ORISE: Nuclear engineering degrees at highest ranges since 1980s  

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

ORISE report shows graduation, enrollment rates for nuclear engineering candidates are still at highest ranges reported since 1980s Report also shows shifts in career opportunities...

295

Tonopah Test Range Environmental Restoration Corrective Action Sites  

SciTech Connect

This report describes the status (closed, closed in place, or closure in progress) of the Corrective Action Sites and Corrective Action Units at the Tonopah Test Range

NSTec Environmental Restoration

2010-08-04T23:59:59.000Z

296

Aerial Photography At Nevada Test And Training Range Area (Sabin...  

Open Energy Info (EERE)

Nevada Test And Training Range Area (Sabin, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography At Nevada Test And...

297

Geographic Information System At Nevada Test And Training Range...  

Open Energy Info (EERE)

Page Edit History Facebook icon Twitter icon Geographic Information System At Nevada Test And Training Range Area (Sabin, Et Al., 2004) Jump to: navigation, search GEOTHERMAL...

298

Geothermometry At Nevada Test And Training Range Area (Sabin...  

Open Energy Info (EERE)

Nevada Test And Training Range Area (Sabin, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Nevada Test And...

299

BSA 11-10: High Dynamic Range Measurements with Delayed ...  

... then the dynamic range of the system is set by the voltage ... The new circuit design will advance technology used in industrial automation, ... B ...

300

High Speed High Dynamic Range High Accuracy Measurement System  

Disclosure Number 201102747 Technology Summary The present invention measures a beam of protons that has a high dynamic range. Typically, one uses ...

Note: This page contains sample records for the topic "tp4 range distance" 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

Micro-Earthquake At Northwest Basin and Range Geothermal Region...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At Northwest Basin and Range Geothermal Region (1976) Exploration Activity Details...

302

Seasonal home ranges and migration of red deer (Cervus elaphus).  

E-Print Network (OSTI)

??1. Many studies have dealt with home range and migratory patterns of Cervid species, but there are few explicit analyses quantifying migratory patterns and home… (more)

Kleveland, Kirsten

2007-01-01T23:59:59.000Z

303

Variable Range Hopping Conduction and Magnetic Properties of ...  

Science Conference Proceedings (OSTI)

The electrical resistivities have been measured over a wide range of temperature (5-285K), suggesting semiconductor behavior. The charge transport ...

304

Geodetic Survey At Nevada Test And Training Range Area (Sabin...  

Open Energy Info (EERE)

Page Edit History Facebook icon Twitter icon Geodetic Survey At Nevada Test And Training Range Area (Sabin, Et Al., 2004) Jump to: navigation, search GEOTHERMAL...

305

Distribution of quaternary rhyolite dome of the Coso Range, California...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Distribution of quaternary rhyolite dome of the Coso Range, California: Implications for extent...

306

The Geneva-Copenhagen Survey of the Solar neighbourhood III. Improved distances, ages, and kinematics  

E-Print Network (OSTI)

Ages, chemical compositions, velocity vectors, and Galactic orbits for stars in the solar neighbourhood are fundamental test data for models of Galactic evolution. We aim to improve the accuracy of the Geneva-Copenhagen Survey data by implementing the recent revision of the Hipparcos parallaxes. The new parallaxes yield improved astrometric distances for 12,506 stars in the GCS. We also check the GCS II scales of T_eff and [Fe/H] and find no need for change. Introducing the new distances, we recompute M_V for 16,086 stars, and U, V, W, and Galactic orbital parameters for the 13,520 stars that also have radial-velocity measurements. We also recompute stellar ages from the Padova stellar evolution models used in GCS I-II, using the new values of M_V, and compare them with ages from the Yale-Yonsei and Victoria-Regina models. Finally, we compare the observed age-velocity relation in W with three simulated disk heating scenarios to show the potential of the data. With these revisions, the basic data for the GCS stars should now be as reliable as is possible with existing techniques. Further improvement must await consolidation of the T_eff scale from angular diameters and fluxes, and the Gaia trigonometric parallaxes. We discuss the conditions for improving computed stellar ages from new input data, and for distinguishing different disk heating scenarios from data sets of the size and precision of the GCS.

J. Holmberg; B. Nordström; J. Andersen

2008-11-24T23:59:59.000Z

307

Extending the redshift-distance relation in Cosmological General Relativity to higher redshifts  

E-Print Network (OSTI)

The redshift-distance modulus relation, the Hubble Diagram, derived from Cosmological General Relativity has been extended to arbitrarily large redshifts. Numerical methods were employed and a density function was found that results in a valid solution of the field equations at all redshifts. The extension has been compared to 302 type Ia supernova data as well as to 69 Gamma-ray burst data. The latter however do not not truly represent a `standard candle' as the derived distance modulii are not independent of the cosmology used. Nevertheless the analysis shows a good fit can be achieved without the need to assume the existence of dark matter. The Carmelian theory is also shown to describe a universe that is always spatially flat. This results from the underlying assumption of the energy density of a cosmological constant $\\Omega_{\\Lambda} = 1$, the result of vacuum energy. The curvature of the universe is described by a \\textit{spacevelocity} metric where the energy content of the curvature at any epoch is $\\Omega_K = \\Omega_{\\Lambda} - \\Omega = 1-\\Omega$, where $\\Omega$ is the matter density of the universe. Hence the total density is always $\\Omega_K + \\Omega = 1$

John G. Hartnett

2007-05-22T23:59:59.000Z

308

A PARALLAX DISTANCE AND MASS ESTIMATE FOR THE TRANSITIONAL MILLISECOND PULSAR SYSTEM J1023+0038  

Science Conference Proceedings (OSTI)

The recently discovered transitional millisecond pulsar system J1023+0038 exposes a crucial evolutionary phase of recycled neutron stars for multiwavelength study. The system, comprising the neutron star itself, its stellar companion, and the surrounding medium, is visible across the electromagnetic spectrum from the radio to X-ray/gamma-ray regimes and offers insight into the recycling phase of millisecond pulsar evolution. Here, we report on multiple-epoch astrometric observations with the Very Long Baseline Array (VLBA) which give a system parallax of 0.731 {+-} 0.022 milliarcseconds (mas) and a proper motion of 17.98 {+-} 0.05 mas yr{sup -1}. By combining our results with previous optical observations, we are able to use the parallax distance of 1368{sup +42}{sub -{sub 39}} pc to estimate the mass of the pulsar to be 1.71 {+-} 0.16 M{sub Sun }, and we are also able to measure the three-dimensional space velocity of the system to be 126 {+-} 5 km s{sup -1}. Despite the precise nature of the VLBA measurements, the remaining {approx}3% distance uncertainty dominates the 0.16 M{sub Sun} error on our mass estimate.

Deller, A. T. [Netherlands Institute for Radio Astronomy (ASTRON), 7990-AA Dwingeloo (Netherlands); Archibald, A. M.; Kaspi, V. M. [Department of Physics, McGill University, 3600 University Street, Montreal, QC H3A 2T8 (Canada); Brisken, W. F. [National Radio Astronomy Observatory, Socorro, NM 87801 (United States); Chatterjee, S. [Astronomy Department, Cornell University, Ithaca, NY 14853 (United States); Janssen, G. H.; Lyne, A. G.; Stappers, B. [Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom); Lorimer, D.; McLaughlin, M. A. [Department of Physics, West Virginia University, Morgantown, WV 26506 (United States); Ransom, S. [National Radio Astronomy Observatory, Charlottesville, VA 22903 (United States); Stairs, I. H. [Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1 (Canada)

2012-09-10T23:59:59.000Z

309

Clinical Study Anterior Lumbar Interbody Implants: Importance of the Interdevice Distance  

E-Print Network (OSTI)

Copyright © 2011 Brian R. Subach et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Object. The implantation of interbody fusion cages allows for the restoration of disc height and the enlargement of the neuroforaminal space. The purpose of this study was to compare the extent of subsidence occurring after conventional cage placement compared to a novel wider cage placement technique. Methods. This study is a retrospective evaluation of radiographs of patients who underwent stand-alone single level anterior lumbar interbody fusion with lordotic titanium cages and rhBMP-2. Fifty-three patients were evaluated: 39 patients had wide cage placement (6 mm interdevice distance) and 14 had narrow cage placement (2 mm interdevice distance). Anterior and posterior intervertebral disc space heights were measured post-operatively and at follow-up imaging. Results. The decrease in anterior intervertebral disc space height was 2.05 mm versus 3.92 mm (P subsidence greater than 2 mm was 41.0 % in the wide cage patients and 85.7 % for the narrow cage patients (P subsidence while allowing for a greater exposed surface area for interbody fusion. 1.

Brian R. Subach; Anne G. Copay; Marcus M. Martin; Thomas C. Schuler

2010-01-01T23:59:59.000Z

310

THE DYNAMICAL DISTANCE, RR LYRAE ABSOLUTE MAGNITUDE, AND AGE OF THE GLOBULAR CLUSTER NGC 6266  

SciTech Connect

The internal proper motion dispersion of NGC 6266 was measured using Hubble Space Telescope Wide Field Planetary Camera 2 images with an epoch difference of eight years. The dispersion was found to be 0.041 {+-} 0.001 arcsec century{sup -1}. This value was then equated to the cluster's radial velocity dispersion of 13.7 {+-} 1.1 km s{sup -1} to yield a distance to NGC 6266 of 7054 {+-} 583 pc. Based on this distance we find that the NGC 6266 RR Lyrae stars have M{sub V} = 0.51 {+-} 0.18 mag. This magnitude is in good agreement with that predicted by the M{sub V} versus [Fe/H] relation found by Benedict et al. Using an average [Fe/H] of -1.25 for NGC 6266, their relation predicts M{sub V} = 0.49 {+-} 0.06. Based on the RR Lyrae M{sub V} versus age relation determined by Chaboyer et al., we estimate that NGC 6266 has an age of 11.4 {+-} 2.2 Gyr.

McNamara, Bernard J.; McKeever, Jean, E-mail: bmcnamar@nmsu.edu, E-mail: jeanm12@nmsu.edu [Department of Astronomy, New Mexico State University, P.O. Box 30001, MSC 4500, Las Cruces, NM 88003-8001 (United States)

2011-11-15T23:59:59.000Z

311

Time--Distance Helioseismology Data Analysis Pipeline for Helioseismic and Magnetic Imager onboard Solar Dynamics Observatory (SDO/HMI) and Its Initial Results  

E-Print Network (OSTI)

The Helioseismic and Magnetic Imager onboard the Solar Dynamics Observatory (SDO/HMI) provides continuous full-disk observations of solar oscillations. We develop a data-analysis pipeline based on the time-distance helioseismology method to measure acoustic travel times using HMI Doppler-shift observations, and infer solar interior properties by inverting these measurements. The pipeline is used for routine production of near-real-time full-disk maps of subsurface wave-speed perturbations and horizontal flow velocities for depths ranging from 0 to 20 Mm, every eight hours. In addition, Carrington synoptic maps for the subsurface properties are made from these full-disk maps. The pipeline can also be used for selected target areas and time periods. We explain details of the pipeline organization and procedures, including processing of the HMI Doppler observations, measurements of the travel times, inversions, and constructions of the full-disk and synoptic maps. Some initial results from the pipeline, includin...

Zhao, J; Bogart, R S; Parchevsky, K V; Birch, A C; Duvall, T L; Beck, J G; Kosovichev, A G; Scherrer, P H

2011-01-01T23:59:59.000Z

312

Linguistic facts as predicates over ranges of the sentence  

Science Conference Proceedings (OSTI)

This paper introduces a novel approach to language processing, in which linguistic facts are represented as predicates over ranges of the intput text, usually, but not limited to, ranges of the current sentence. Such an approch allows to build non-linear ...

Benoît Sagot

2005-04-01T23:59:59.000Z

313

Long Range Passive UHF RFID System Using HVAC Ducts  

E-Print Network (OSTI)

INVITED P A P E R Long Range Passive UHF RFID System Using HVAC Ducts To provide a potential communications channel, HVAC ducts can function as electromagnetic waveguides; a 30-m read range has been-conditioning (HVAC) ducts as a potential communication channel between passive ultrahigh-frequency (UHF) radio

Hochberg, Michael

314

Renewable Energy and the Nevada Test and Training Range  

E-Print Network (OSTI)

1 Renewable Energy and the Nevada Test and Training Range Wednesday, December 15, 2010 Melissa due to renewable energy infrastructure development at the Nevada Test and Training Range. Nevada has have ever-increasing renewable energy goals. However, proposals for the development of 116 renewable

Lewis, Robert Michael

315

Energy Distribution Control in Wireless Sensor Networks Through Range Optimization  

E-Print Network (OSTI)

Energy Distribution Control in Wireless Sensor Networks Through Range Optimization M.Sarper Gokturk a location-based routing framework to control the energy distribution in a network where transmission ranges--A major objective in wireless sensor networks is to find optimum routing strategies for energy efficient

Yanikoglu, Berrin

316

SRNSSTI200900446 Evaluation of Range Estimates for Toyota FCHVadv  

E-Print Network (OSTI)

200900446 Evaluation of Range Estimates for Toyota FCHVadv Under Open Road Driving Conditions Keith Wipke driving ranges of >400 miles announced by Toyota for its new advanced Fuel Cell Hybrid Vehicle (FCHVadvvehicle evaluation with Toyota Motor Engineering & Manufacturing North America, Inc. (TEMA) over a typical

317

Range-free mobile node localization using static anchor  

Science Conference Proceedings (OSTI)

In this paper we have proposed a deterministic, range-free, distributed localization algorithm for mobile sensor nodes with static anchors. Mobile node calculates its approximate line of movement and corresponding position based on received beacons from ... Keywords: beacon point, line of movement, mobile sensor localization, range-free

Kaushik Mondal, Partha Sarathi Mandal

2013-08-01T23:59:59.000Z

318

Cell Merger Potential in Multicell Thunderstorms of Weakly Sheared Environments: Cell Separation Distance versus Planetary Boundary Layer Depth  

Science Conference Proceedings (OSTI)

Using high-resolution three-dimensional numerical experiments, this paper shows that the cell separation distance scales as 0.75 times the planetary boundary layer (PBL) depth for successful cell mergers between constructively interacting cells ...

James R. Stalker; Kevin R. Knupp

2003-08-01T23:59:59.000Z

319

The Use of Euclidean Geometric Distance on RGB Color Space for the Classification of Sky and Cloud Patterns  

Science Conference Proceedings (OSTI)

The current work describes the use of multidimensional Euclidean geometric distance (EGD) and Bayesian methods to characterize and classify the sky and cloud patterns present in image pixels. From specific images and using visualization tools, it ...

Sylvio Luiz Mantelli Neto; Aldo von Wangenheim; Enio Bueno Pereira; Eros Comunello

2010-09-01T23:59:59.000Z

320

Geothermal Reservoir Assessment Case Study, Northern Basin and Range  

Open Energy Info (EERE)

Reservoir Assessment Case Study, Northern Basin and Range Reservoir Assessment Case Study, Northern Basin and Range Province, Northern Dixie Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geothermal Reservoir Assessment Case Study, Northern Basin and Range Province, Northern Dixie Valley, Nevada Abstract N/A Authors Elaine J. Bell, Lawrence T. Larson and Russell W. Juncal Published U.S. Department of Energy, 1980 Report Number GLO2386 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Geothermal Reservoir Assessment Case Study, Northern Basin and Range Province, Northern Dixie Valley, Nevada Citation Elaine J. Bell,Lawrence T. Larson,Russell W. Juncal. 1980. Geothermal Reservoir Assessment Case Study, Northern Basin and Range Province,

Note: This page contains sample records for the topic "tp4 range distance" 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

A range description for the planar circular Radon transform  

E-Print Network (OSTI)

The transform considered in the paper integrates a function supported in the unit disk on the plane over all circles centered at the boundary of this disk. Such circular Radon transform arises in several contemporary imaging techniques, as well as in other applications. As it is common for transforms of Radon type, its range has infinite co-dimension in standard function spaces. Range descriptions for such transforms are known to be very important for computed tomography, for instance when dealing with incomplete data, error correction, and other issues. A complete range description for the circular Radon transform is obtained. Range conditions include the recently found set of moment type conditions, which happens to be incomplete, as well as the rest of conditions that have less standard form. In order to explain the procedure better, a similar (non-standard) treatment of the range conditions is described first for the usual Radon transform on the plane.

Gaik Ambartsoumian; Peter Kuchment

2005-08-04T23:59:59.000Z

322

Magnetotellurics At Northern Basin & Range Region (Pritchett, 2004) | Open  

Open Energy Info (EERE)

Magnetotellurics At Northern Basin & Range Region Magnetotellurics At Northern Basin & Range Region (Pritchett, 2004) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Magnetotellurics Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoretical/computer simulation tests of various methods on eight hypothetical 'model' basing-and-range geothermal systems. "The 300-meter heat flow holes are essentially useless for finding the "hidden" reservoirs. Clearly, the best results are obtained from the SP and MT surveys, with DC resistivity a close third. It is concluded that the best way to find "hidden" basin and range geothermal resources of this general type is to carry out simultaneous SP and low-frequency MT surveys, and then

323

Range Design Criteria - June 4, 2012 | Department of Energy  

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

Range Design Criteria - June 4, 2012 Range Design Criteria - June 4, 2012 Range Design Criteria - June 4, 2012 June 4, 2012 This document contains the currently-approved firearms "Range Design Criteria" referred to on DOE O 473.3, Protection Program Operations PURPOSE. This document contains design criteria for U.S. Department of Energy (DOE) live-fire ranges for use in planning new facilities and major rehabilitation of existing facilities. This document will be approved and maintained by the Office of Security, Office of Health, Safety and Security (HSS) as a stand-alone document on the HSS website: http://www.hss.doe.gov/SecPolicy/pfs.html. PLANNING FACTORS. All applicable local, State, Federal, U.S. Environmental Protection Agency, Occupational Health and Safety Administration (OSHA),

324

Geographic Information System At Nevada Test And Training Range Area  

Open Energy Info (EERE)

Geographic Information System At Nevada Test And Training Range Area Geographic Information System At Nevada Test And Training Range Area (Sabin, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Nevada Test And Training Range Area (Sabin, Et Al., 2004) Exploration Activity Details Location Nevada Test And Training Range Area Exploration Technique Geographic Information System Activity Date Usefulness not indicated DOE-funding Unknown Notes Nellis Air Force Range (NAFR) occupies over 3 million acres in southern Nevada (Figure 1). We recently assessed potential utility-grade geothermal resources and possible target areas for exploration by constructing a GIS of this area and applying the occurrence model ideas outlined above (ITSI, 2003; Sabin et al., 2004). We list below many of the factors considered.

325

NNSA Celebrates Earth Week: Pantex 'greens' firing range | National Nuclear  

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

'greens' firing range | National Nuclear 'greens' firing range | 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 > NNSA Blog > NNSA Celebrates Earth Week: Pantex 'greens' firing range NNSA Celebrates Earth Week: Pantex 'greens' firing range Posted By Greg Cunningham, Pantex The lead that flies at the Pantex Firing Range has to land somewhere, and

326

Aeromagnetic and gravity surveys in the Coso Range, California | Open  

Open Energy Info (EERE)

and gravity surveys in the Coso Range, California and gravity surveys in the Coso Range, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Aeromagnetic and gravity surveys in the Coso Range, California Details Activities (2) Areas (1) Regions (0) Abstract: The effect of an underlying magma reservoir cannot be identified within the complex gravity pattern in the Coso Range, California. Rather, linear gravity contours, which suggest a regional tectonic origin, enclose the location of most of the volcanic activity of the Coso Range. Faults along the edges of northwest trending, magnetic blocks probably provided paths of minimum resistance to the ascending viscous magma that was extruded as rhyolite domes. Dense, magnetic rocks associated with a complex mafic pluton 9 km in diameter form a relatively impermeable north border of

327

Laser Ranging for Gravitational, Lunar, and Planetary Science  

E-Print Network (OSTI)

More precise lunar and Martian ranging will enable unprecedented tests of Einstein's theory of General Relativity and well as lunar and planetary science. NASA is currently planning several missions to return to the Moon, and it is natural to consider if precision laser ranging instruments should be included. New advanced retroreflector arrays at carefully chosen landing sites would have an immediate positive impact on lunar and gravitational studies. Laser transponders are currently being developed that may offer an advantage over passive ranging, and could be adapted for use on Mars and other distant objects. Precision ranging capability can also be combined with optical communications for an extremely versatile instrument. In this paper we discuss the science that can be gained by improved lunar and Martian ranging along with several technologies that can be used for this purpose.

Stephen M. Merkowitz; Philip W. Dabney; Jeffrey C. Livas; Jan F. McGarry; Gregory A. Neumann; Thomas W. Zagwodzki

2007-12-20T23:59:59.000Z

328

Nevada Test And Training Range Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Nevada Test And Training Range Geothermal Area Nevada Test And Training Range Geothermal Area (Redirected from Nevada Test And Training Range Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Nevada Test And Training Range Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (5) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Northern Basin and Range Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content

329

Long range Energy Alternatives Planning (LEAP) System | Open Energy  

Open Energy Info (EERE)

Long range Energy Alternatives Planning (LEAP) System Long range Energy Alternatives Planning (LEAP) System Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Long range Energy Alternatives Planning System Agency/Company /Organization: Stockholm Environment Institute Sector: Climate, Energy Focus Area: Non-renewable Energy, Agriculture, Biomass, - Anaerobic Digestion, - Biofuels, - Biomass Combustion, - Biomass Gasification, - Biomass Pyrolysis, - Landfill Gas, - Waste to Energy, Buildings, Economic Development, Energy Efficiency, - Central Plant, Food Supply, Forestry, Geothermal, Goods and Materials, - Embodied Energy, - Materials, Greenhouse Gas, Ground Source Heat Pumps, Hydrogen, Industry, - Industrial Processes, Offsets and Certificates, People and Policy, Solar, - Concentrating Solar Power, - Solar Hot Water, - Solar PV, - Solar Ventilation Preheat, Transportation, Water Conservation, Water Power, Wind

330

Nevada Test And Training Range Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Nevada Test And Training Range Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Nevada Test And Training Range Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (5) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Northern Basin and Range Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content

331

Long range Energy Alternatives Planning (LEAP) System | Open Energy  

Open Energy Info (EERE)

Long range Energy Alternatives Planning (LEAP) System Long range Energy Alternatives Planning (LEAP) System (Redirected from LEAP) Jump to: navigation, search Tool Summary Name: Long range Energy Alternatives Planning System Agency/Company /Organization: Stockholm Environment Institute Sector: Climate, Energy Focus Area: Non-renewable Energy, Agriculture, Biomass, - Anaerobic Digestion, - Biofuels, - Biomass Combustion, - Biomass Gasification, - Biomass Pyrolysis, - Landfill Gas, - Waste to Energy, Buildings, Economic Development, Energy Efficiency, - Central Plant, Food Supply, Forestry, Geothermal, Goods and Materials, - Embodied Energy, - Materials, Greenhouse Gas, Ground Source Heat Pumps, Hydrogen, Industry, - Industrial Processes, Offsets and Certificates, People and Policy, Solar, - Concentrating Solar Power, - Solar Hot Water, - Solar PV, - Solar Ventilation Preheat, Transportation, Water Conservation, Water Power, Wind

332

Short-range force between two Higgs bosons  

E-Print Network (OSTI)

The $S$-wave scattering length and the effective range of the Higgs boson in Standard Model are studied using effective-field-theory approach. After incorporating the first-order electroweak correction, the short-range force between two Higgs bosons remains weakly attractive for $M_H=126$ GeV. It is interesting to find that the force range is about two order-of-magnitude larger than the Compton wavelength of the Higgs boson, almost comparable with the typical length scale of the strong interaction.

Feng Feng; Yu Jia; Wen-Long Sang

2013-12-06T23:59:59.000Z

333

Clutter in the GMTI range-velocity map.  

SciTech Connect

Ground Moving Target Indicator (GMTI) radar maps echo data to range and range-rate, which is a function of a moving target's velocity and its position within the antenna beam footprint. Even stationary clutter will exhibit an apparent motion spectrum and can interfere with moving vehicle detections. Consequently it is very important for a radar to understand how stationary clutter maps into radar measurements of range and velocity. This mapping depends on a wide variety of factors, including details of the radar motion, orientation, and the 3-D topography of the clutter.

Doerry, Armin Walter

2009-04-01T23:59:59.000Z

334

Time-Distance analysis of the Emerging Active Region NOAA 10790  

E-Print Network (OSTI)

We investigate the emergence of Active Region NOAA 10790 by means of time--distance helioseismology. Shallow regions of increased sound speed at the location of increased magnetic activity are observed, with regions becoming deeper at the locations of sunspot pores. We also see a long-lasting region of decreased sound speed located underneath the region of the flux emergence, possibly relating to a temperature perturbation due to magnetic quenching of eddy diffusivity, or to a dense flux tube. We detect and track an object in the subsurface layers of the Sun characterised by increased sound speed which could be related to emerging magnetic flux and thus obtain a provisional estimate of the speed of emergence of around $1 {\\rm km s^{-1}}$.

S. Zharkov; M. J. Thompson

2008-07-18T23:59:59.000Z

335

Binomial moments of the distance distribution and the probability of undetected error  

Science Conference Proceedings (OSTI)

In [1] K.A.S. Abdel-Ghaffar derives a lower bound on the probability of undetected error for unrestricted codes. The proof relies implicitly on the binomial moments of the distance distribution of the code. The authors use the fact that these moments count the size of subcodes of the code to give a very simple proof of the bound in [1] by showing that it is essentially equivalent to the Singleton bound. They discuss some combinatorial connections revealed by this proof. They also discuss some improvements of this bound. Finally, they analyze asymptotics. They show that an upper bound on the undetected error exponent that corresponds to the bound of [1] improves known bounds on this function.

Barg, A. [Lucent Technologies, Murray Hill, NJ (United States). Bell Labs.; Ashikhmin, A. [Los Alamos National Lab., NM (United States)

1998-09-01T23:59:59.000Z

336

Physical parameters of the Small Magellanic Cloud RR Lyrae stars and the distance scale  

E-Print Network (OSTI)

We present a careful and detailed light curve analysis of RR Lyrae stars in the Small Magellanic Cloud (SMC) discovered by the Optical Gravitational Lensing Experiment (OGLE) project. Out of 536 single mode RR Lyrae stars selected from the database, we have investigated the physical properties of 335 `normal looking' RRab stars and 17 RRc stars that have good quality photometric light curves. We have also been able to estimate the distance modulus of the cloud which is in good agreement with those determined from other independent methods. The Fourier decomposition method has been used to study the basic properties of these variables. Accurate Fourier decomposition parameters of 536 RR Lyrae stars in the OGLE-II database are computed. Empirical relations between the Fourier parameters and some physical parameters of these variables have been used to estimate the physical parameters for the stars from the Fourier analysis. Further, the Fourier decomposition of the light curves of the SMC RR Lyrae stars yields ...

Deb, Sukanta

2009-01-01T23:59:59.000Z

337

Distance priority based multicast routing in WDM networks considering sparse light splitting  

E-Print Network (OSTI)

As we know, the member-only algorithm in provides the best links stress and wavelength usage for the construction of multicast light-trees in WDM networks with sparse splitting. However, the diameter of tree is too big and the average delay is also too large, which are intolerant for QoS required multimedia applications. In this paper, a distance priority based algorithm is proposed to build light-trees for multicast routing, where the Candidate Destinations and the Candidate Connectors are introduced. Simulations show the proposed algorithm is able to greatly reduce the diameter and average delay of the multicast tree (up to 51% and 50% respectively), while keep the same or get a slightly better link stress as well as the wavelength usage than the famous Member-Only algorithm.

Zhou, Fen; Cousin, Bernard; 10.1109/ICCS.2008.4737278

2009-01-01T23:59:59.000Z

338

B-Spline Surface Approximation to Cross-Sections Using Distance Maps  

E-Print Network (OSTI)

this paper, we present a method of surface approximation to cross-sections with multiple branching problems. In this method, we first decompose each multiple branching problem into a set of single branching problems by providing a set of intermediate contours using distance maps. For each single branching region, a procedure then performs the skinning of contour curves represented by cubic B-spline curves on a common knot vector, each of which is fitted to its contour points within a given accuracy. In order to acquire a more compact representation for the surface, the method includes an algorithm for reducing the number of knots in the common knot vector. The approximation surface to the crosssections is represented by a set of bicubic B-spline surfaces. This method provides a smooth surface model, yet realises efficient data reduction.

J. Jeong; K. Kim; H. Park; H. Cho; M. Jung

1999-01-01T23:59:59.000Z

339

Reverse estimation theory, Complementality between RLD and SLD, and monotone distances  

E-Print Network (OSTI)

Many problems in quantum information theory can be vied as interconversion between resources. In this talk, we apply this view point to state estimation theory, motivated by the following observations. First, a monotone metric takes value between SLD and RLD Fisher metric. This is quite analogous to the fact that entanglement measures are sandwiched by distillable entanglement and entanglement cost. Second, SLD add RLD are mutually complement via purification of density matrices, but its operational meaning was not clear. To find a link between these observations, we define reverse estimation problem, or simulation of quantum state family by probability distribution family, proving that RLD Fisher metric is a solution to local reverse estimation problem of quantum state family with 1-dim parameter. This result gives new proofs of some known facts and proves one new fact about monotone distances. We also investigate information geometry of RLD, and reverse estimation theory of a multi-dimensional parameter fam...

Matsumoto, K

2005-01-01T23:59:59.000Z

340

Reverse estimation theory, Complementality between RLD and SLD, and monotone distances  

E-Print Network (OSTI)

Many problems in quantum information theory can be vied as interconversion between resources. In this talk, we apply this view point to state estimation theory, motivated by the following observations. First, a monotone metric takes value between SLD and RLD Fisher metric. This is quite analogous to the fact that entanglement measures are sandwiched by distillable entanglement and entanglement cost. Second, SLD add RLD are mutually complement via purification of density matrices, but its operational meaning was not clear. To find a link between these observations, we define reverse estimation problem, or simulation of quantum state family by probability distribution family, proving that RLD Fisher metric is a solution to local reverse estimation problem of quantum state family with 1-dim parameter. This result gives new proofs of some known facts and proves one new fact about monotone distances. We also investigate information geometry of RLD, and reverse estimation theory of a multi-dimensional parameter family.

Keiji Matsumoto

2005-11-17T23:59:59.000Z

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341

Deficit of reactor antineutrinos at distances smaller than 100 m and inverse beta-decay  

E-Print Network (OSTI)

We analyse a change of a deficit of reactor antineutrinos at distances smaller than 100 m by changing the lifetime of the neutron from tau_n = 885.7 s to tau_n = 879.6 s, calculated for the axial coupling constants lambda = - 1.2694 and lambda = - 1.2750, respectively, in order to get a result corresponding the new world average value tau_n = 880.1(1.1) s. We calculate the angular distribution and cross section for the inverse beta-decay, taking into account the contributions of the "weak magnetism" and the neutron recoil to next-to-leading order in the large baryon mass expansion and the radiative corrections of order alpha/\\pi ~ 10^(-3), calculated to leading order in the large baryon mass expansion. We obtain an increase of a deficit of reactor antineutrinos in of about 0.734%.

A. N. Ivanov; R. Hollwieser; N. I. Troitskaya; M. Wellenzohn; O. M. Zherebtsov; A. P. Serebrov

2013-06-09T23:59:59.000Z

342

The Age, Extinction and Distance of the Old, Metal-Rich Open Cluster NGC 6791  

E-Print Network (OSTI)

An extensive grid of metal-rich isochrones utilizing the latest available input physics has been calculated for comparison with the old, metal-rich open cluster NGC 6791. The isochrones have been simultaneously fit to BV and VI color magnitude diagrams, with the same composition, reddening and distance modulus required for both colors. Our best fitting isochrone assumes [Fe/H] = +0.4, scaled solar abundance ratios, and dY/dZ = 2 (Y = 0.31), yielding an excellent fit to the data at all points along the major sequences. The resulting age is 8 Gyr, with E(B-V) = 0.10 and (m-M)_v = 13.42. The derived cluster parameters are fairly robust to variations in the isochrone [Fe/H] and helium abundances. All of the acceptable fits indicate that 0.07 < E(B-V) < 0.14$, 13.29 < (m-M)_v < 13.46, and that NGC 6791 has an age of 8.0+/- 0.5 Gyr. The fits also suggest that dY/dZ lies between 1 and 3. A metallicity as low as solar is clearly ruled out, as is dY/dZ = 0. Comparison with previous isochrone studies indicates that the derived reddening is primarily due to our use of the most recent color transformations, whereas the age depends upon both the colors and the input physics. Our isochrones provide an excellent fit to the Hyades zero-age main sequence as determined by Hipparcos, providing evidence that our derived reddening and distance modulus are reliable.

Brian Chaboyer; Elizabeth M. Green; James Liebert

1998-12-04T23:59:59.000Z

343

Thick-to-Thin Filament Surface Distance Modulates Cross-Bridge Kinetics in Drosophila Flight Muscle  

Science Conference Proceedings (OSTI)

The demembranated (skinned) muscle fiber preparation is widely used to investigate muscle contraction because the intracellular ionic conditions can be precisely controlled. However, plasma membrane removal results in a loss of osmotic regulation, causing abnormal hydration of the myofilament lattice and its proteins. We investigated the structural and functional consequences of varied myofilament lattice spacing and protein hydration on cross-bridge rates of force development and detachment in Drosophila melanogaster indirect flight muscle, using x-ray diffraction to compare the lattice spacing of dissected, osmotically compressed skinned fibers to native muscle fibers in living flies. Osmolytes of different sizes and exclusion properties (Dextran T-500 and T-10) were used to differentially alter lattice spacing and protein hydration. At in vivo lattice spacing, cross-bridge attachment time (t{sub on}) increased with higher osmotic pressures, consistent with a reduced cross-bridge detachment rate as myofilament protein hydration decreased. In contrast, in the swollen lattice, t{sub on} decreased with higher osmotic pressures. These divergent responses were reconciled using a structural model that predicts t{sub on} varies inversely with thick-to-thin filament surface distance, suggesting that cross-bridge rates of force development and detachment are modulated more by myofilament lattice geometry than protein hydration. Generalizing these findings, our results suggest that cross-bridge cycling rates slow as thick-to-thin filament surface distance decreases with sarcomere lengthening, and likewise, cross-bridge cycling rates increase during sarcomere shortening. Together, these structural changes may provide a mechanism for altering cross-bridge performance throughout a contraction-relaxation cycle.

Tanner, Bertrand C.W.; Farman, Gerrie P.; Irving, Thomas C.; Maughan, David W.; Palmer, Bradley M.; Miller, Mark S. (IIT); (Vermont); (BU)

2012-09-19T23:59:59.000Z

344

Characteristics of Basin and Range Geothermal Systems with Fluid  

Open Energy Info (EERE)

Characteristics of Basin and Range Geothermal Systems with Fluid Characteristics of Basin and Range Geothermal Systems with Fluid Temperatures of 150°C to 200°C Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Characteristics of Basin and Range Geothermal Systems with Fluid Temperatures of 150°C to 200°C Abstract Six geothermal reservoirs with fluid temperatures over 200°C and ten geothermal systems with measured fluid temperatures of 150-200°C have been discovered in the northern Basin and Range Province of the USA. A comparison of these high and moderate temperature systems shows considerable overlap in geographical distribution, geology, and physical properties. Our ability to distinguish between moderate and high temperature systems using fluid chemistry has been limited by often

345

Unambiguous Range Extension by Overlay Resolution in Staggered PRT Technique  

Science Conference Proceedings (OSTI)

In this paper a method is presented for separating overlaid echoes in a Doppler weather radar that uses a staggered pulse repetition time (PRT) transmission scheme to mitigate the effects of range–velocity ambiguities. In the standard staggered ...

M. Sachidananda; D. S. Zrnic

2003-05-01T23:59:59.000Z

346

Simulating Range Oversampled Doppler Radar Profiles of Inhomogeneous Targets  

Science Conference Proceedings (OSTI)

A new technique for generating range oversampled profiles of Doppler radar signals that have been backscattered by distributed targets is presented in this paper. The technique was developed for spaceborne cloud radars, but it can just as well be ...

N. A. J. Schutgens

2008-09-01T23:59:59.000Z

347

The range and roots constraints: specifying counting and occurrence problems  

Science Conference Proceedings (OSTI)

We propose a simple declarative language for specifying a wide range of counting and occurrence constraints. This specification language is executable since it immediately provides a polynomial propagation algorithm. To illustrate the capabilities of ...

Christian Bessiere; Emmanuel Hebrard; Brahim Hnich; Zeynep Kiziltan; Toby Walsh

2005-07-01T23:59:59.000Z

348

NNSA Celebrates Earth Week: Pantex 'greens' firing range | National...  

National Nuclear Security Administration (NNSA)

way, and created a program that shows how Pantex goes the extra mile to protect the environment. The project to "green" the firing range had two components encompassing both...

349

Exploration and Development Techniques for Basin and Range Geothermal  

Open Energy Info (EERE)

Techniques for Basin and Range Geothermal Techniques for Basin and Range Geothermal Systems: Examples from Dixie Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Exploration and Development Techniques for Basin and Range Geothermal Systems: Examples from Dixie Valley, Nevada Abstract Abstract unavailable. Authors David D. Blackwell, Mark Leidig, Richard P. Smith, Stuart D. Johnson and Kenneth W. Wisian Conference GRC Annual Meeting; Reno, NV; 2002/09/22 Published Geothermal Resources Council, 2002 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Exploration and Development Techniques for Basin and Range Geothermal Systems: Examples from Dixie Valley, Nevada Citation David D. Blackwell,Mark Leidig,Richard P. Smith,Stuart D. Johnson,Kenneth

350

Distribution of quaternary rhyolite dome of the Coso Range, California:  

Open Energy Info (EERE)

of quaternary rhyolite dome of the Coso Range, California: of quaternary rhyolite dome of the Coso Range, California: Implications for extent of the geothermal anomaly Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Distribution of quaternary rhyolite dome of the Coso Range, California: Implications for extent of the geothermal anomaly Details Activities (1) Areas (1) Regions (0) Abstract: Thirty-eight separate domes and flows of phenocryst-poor, high-silica rhyolite of similar major element chemical composition were erupted over the past 1 m.y. from vents arranged in a crudely S-shaped array atop a granitic horst in the Coso Range, California. Most of the extrusions are probably less than about 0.3 m.y. old. The area is one of Quaternary basaltic volcanism and crustal extension. The central part of

351

Contemporary Tectonic Deformation of the Basin and Range Province, Western  

Open Energy Info (EERE)

Contemporary Tectonic Deformation of the Basin and Range Province, Western Contemporary Tectonic Deformation of the Basin and Range Province, Western United States: 10 Years of Observation with the Global Positioning System Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Contemporary Tectonic Deformation of the Basin and Range Province, Western United States: 10 Years of Observation with the Global Positioning System Abstract [1] We have estimated patterns and rates of crustal movement across 800 km of the Basin and Range at ∼39° north latitude with Global Positioning System surveys in 1992, 1996, 1998, and 2002. The total rate of motion tangent to the small circle around the Pacific-North America pole of rotation is 10.4 ± 1.0 mm/yr, and motion normal to this small circle is 3.9 ± 0.9 mm/yr compared to the east end of our network. On the Colorado

352

Diachroneity of Basin and Range Extension and Yellowstone Hotspot Volcanism  

Open Energy Info (EERE)

Diachroneity of Basin and Range Extension and Yellowstone Hotspot Volcanism Diachroneity of Basin and Range Extension and Yellowstone Hotspot Volcanism in Northwestern Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Diachroneity of Basin and Range Extension and Yellowstone Hotspot Volcanism in Northwestern Nevada Abstract Some of the earliest volcanic rocks attributed to the Yellowstone hotspot erupted from the McDermitt caldera and related volcanic centers in northwestern Nevada at 17-15 Ma. At that time, extensional faulting was ongoing to the south in central Nevada, leading some to suggest that the nascent hotspot caused or facilitated middle Miocene Basin and Range extension. Regional geologic relationships indicate that the total magnitude of extension in northwestern Nevada is low compared to the amount

353

Hydrothermal Heat Discharge In The Cascade Range, Northwestern United  

Open Energy Info (EERE)

Page Page Edit History Facebook icon Twitter icon » Hydrothermal Heat Discharge In The Cascade Range, Northwestern United States Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Hydrothermal Heat Discharge In The Cascade Range, Northwestern United States Details Activities (3) Areas (1) Regions (0) Abstract: Hydrothermal heat discharge in the Cascade Range includes the heat discharged by thermal springs, by "slightly thermal" springs that are only a few degrees warmer than ambient temperature, and by fumaroles. Thermal-spring heat discharge is calculated on the basis of chloride-flux measurements and geothermometer temperatures and totals ~ 240 MW in the U.S. part of the Cascade Range, excluding the transient post-1980 discharge

354

Reconnaissance electrical surveys in the Coso Range, California | Open  

Open Energy Info (EERE)

electrical surveys in the Coso Range, California electrical surveys in the Coso Range, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Reconnaissance electrical surveys in the Coso Range, California Details Activities (3) Areas (1) Regions (0) Abstract: Telluric current, audiomagnetotelluric (AMT), and direct current (dc) methods were used to study the electrical structure of the Coso Range and Coso geothermal area. Telluric current mapping outlined major resistivity lows associated with conductive valley fill of the Rose Valley basin, the Coso Basin, and the northern extension of the Coso Basin east of Coso Hot Springs. A secondary resistivity low with a north-south trend runs through the Coso Hot Springs--Devil's Kitchen geothermal area. The secondary low in the geothermal area, best defined by the 7.5-Hz AMT map

355

T-710: Apache HTTP Server Overlapping Ranges Denial of Service  

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

10: Apache HTTP Server Overlapping Ranges Denial of Service 10: Apache HTTP Server Overlapping Ranges Denial of Service Vulnerability T-710: Apache HTTP Server Overlapping Ranges Denial of Service Vulnerability September 6, 2011 - 3:09am Addthis PROBLEM: Apache HTTP Server contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. PLATFORM: Apache HTTP Server versions 2.2.19 and prior ABSTRACT: Apache HTTP Server Overlapping Ranges Denial of Service Vulnerability. reference LINKS: FreeBSD VuXML Document Advisory ID: cisco-sa-20110830-apache IBM Alert: swg21512087 Red Hat Advisory: RHSA-2011:1245-1 CVE-2011-3192 CVE-2011-3192 (Update2) IMPACT ASSESSMENT: High Discussion: The vulnerability is due to improper processing of certain user-supplied requests by the affected software. An unauthenticated, remote attacker

356

Northern Basin and Range Geothermal Region | Open Energy Information  

Open Energy Info (EERE)

and Range Geothermal Region and Range Geothermal Region Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Northern Basin and Range Geothermal Region Details Areas (34) Power Plants (3) Projects (7) Techniques (33) Map: {{{Name}}} Examination of seismicity and late Quaternary faults in Montana and Idaho north of the Snake River Plain shows a geographic correspondence between high seismicity and 24 faults that have experienced surface rupture during the late Quaternary. The Lewis and Clark Zone delineates the northern boundary of this tectonically active extensional region. Earthquakes greater than magnitude 5.5 and all identified late Quaternary faults are confined to the Montana-Idaho portion of the Basin and Range Province south of the Lewis and Clark Zone. Furthermore, all 12 Holocene faults are

357

Late Cenozoic volcanism, geochronology, and structure of the Coso Range,  

Open Energy Info (EERE)

Late Cenozoic volcanism, geochronology, and structure of the Coso Range, Late Cenozoic volcanism, geochronology, and structure of the Coso Range, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Late Cenozoic volcanism, geochronology, and structure of the Coso Range, Inyo County, California Details Activities (1) Areas (1) Regions (0) Abstract: The Coso Range lies at the west edge of the Great Basin, adjacent to the southern part of the Sierra Nevada. A basement complex of pre-Cenozoic plutonic and metamorphic rocks is partly buried by approx.35 km^3 of late Cenozoic volcanic rocks that were erupted during two periods, as defined by K-Ar dating: (1) 4.0--2.5 m.y., approx.31 km^3 of basalt, rhyodacite, dacite, andesite, and rhyolite, in descending order of abundance, and (2) < or =1.1 m.y., nearly equal amounts of basalt and

358

Geothermal Resource Analysis And Structure Of Basin And Range Systems,  

Open Energy Info (EERE)

Analysis And Structure Of Basin And Range Systems, Analysis And Structure Of Basin And Range Systems, Especially Dixie Valley Geothermal Field, Nevada Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geothermal Resource Analysis And Structure Of Basin And Range Systems, Especially Dixie Valley Geothermal Field, Nevada Details Activities (12) Areas (5) Regions (0) Abstract: Publish new thermal and drill data from the Dizie Valley Geothermal Field that affect evaluation of Basin and Range Geothermal Resources in a very major and positive way. Completed new geophysical surveys of Dizie Valley including gravity and aeromagnetics and integrated the geophysical, seismic, geological and drilling data at Dizie Valley into local and regional geologic models. Developed natural state mass and energy

359

Developments in Operational Long-Range Climate Prediction at CPC  

Science Conference Proceedings (OSTI)

The science, production methods, and format of long-range forecasts (LRFs) at the Climate Prediction Center (CPC), a part of the National Weather Service’s (NWS’s) National Centers for Environmental Prediction (NCEP), have evolved greatly since ...

Edward A. O’Lenic; David A. Unger; Michael S. Halpert; Kenneth S. Pelman

2008-06-01T23:59:59.000Z

360

Spatiotemporal Behavior of the TIGGE Medium-Range Ensemble Forecasts  

Science Conference Proceedings (OSTI)

Using the recently developed mean–variance of logarithms (MVL) diagram, together with The Observing System Research and Predictability Experiment (THORPEX) Interactive Grand Global Ensemble (TIGGE) archive of medium-range ensemble forecasts from ...

Zak Kipling; Cristina Primo; Andrew Charlton-Perez

2011-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "tp4 range distance" 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

Adaptive Support of Range Queries via Push-Pull Algorithms  

Science Conference Proceedings (OSTI)

In many real time interactive simulations the problem of interest management is that of filtering updates through application-specified range queries. This "associative' form of memory access is often implemented more simply as a reference memory access ...

Rob Minson; Georgios Theodoropoulos

2007-06-01T23:59:59.000Z

362

A low-power-extended-linear-range magnetic levitator  

E-Print Network (OSTI)

In this thesis, I designed and built analog circuits to extend the linear range of a magnetic levitator. Analog Devices AD633 multipliers are used to implement nonlinear terms which compensate for the electromagnet and ...

Johnson, Rayal St. Patrick

2007-01-01T23:59:59.000Z

363

Interim report on long range plan for nuclear physics  

SciTech Connect

The interim report on the updated NSAC Long Range Plan for Nuclear Physics will be presented to the community for discussion and comment before submission to the funding agencies. The presentation will be coordinated by E. Moniz chair of NSAC.

1995-04-01T23:59:59.000Z

364

Doppler Sonar and Surface Waves: Range and Resolution  

Science Conference Proceedings (OSTI)

The performance limitations of an acoustic Doppler sonar system are explored and compared with anticipated requirements for the measurement of surface wave directional/frequency spectra. To obtain measurements to a range D requires a delay ?t ...

Jerome A. Smith

1989-08-01T23:59:59.000Z

365

Time–Space Distribution of Long-Range Atmospheric Predictability  

Science Conference Proceedings (OSTI)

The global three-dimensional structure of long-range (one month to one season) atmospheric predictability was investigated with a general circulation model. The main focus was to ascertain the role of atmospheric initial conditions for such ...

Thomas Reichler; John O. Roads

2004-02-01T23:59:59.000Z

366

Seismotectonics of the Coso Range-Indian Wells Valley region...  

Open Energy Info (EERE)

Journal Geological Society of America, 2002 DOI 10.11300-8137-1195-9.277 Online Internet link for Seismotectonics of the Coso Range-Indian Wells Valley region, California:...

367

Dynamical Extended Range Forecasting (DERF) at the National Meteorological Center  

Science Conference Proceedings (OSTI)

Early results are presented of an experimental program in Dynamical Extended Range Forecasting at the National Meteorological Center. The primary objective of this program is to assess the feasibility of extending operational numerical weather ...

M. Steven Tracton; Kingtse Mo; Wilbur Chen; Eugenia Kalnay; Robert Kistler; Glenn White

1989-07-01T23:59:59.000Z

368

The Compact RCS / Antenna Range at MIT Lincoln Laboratory  

E-Print Network (OSTI)

A new compact range with a state-of-the-art instrumentation system was installed at Lincoln Laboratory and is currently in use. This paper describes the chamber with varied-height absorber, the rolled-edge reflector and ...

Shields, Michael W.

369

Ranges of Atmospheric Mass and Composition of Super Earth Exoplanets  

E-Print Network (OSTI)

Terrestrial-like exoplanets may obtain atmospheres from three primary sources: Capture of nebular gases, degassing during accretion, and degassing from subsequent tectonic activity. Here we model degassing during accretion to estimate the range of atmospheric mass and composition on exoplanets ranging from 1 to 30 Earth masses. We use bulk compositions drawn from primitive and differentiated meteorite compositions. Degassing alone can create a wide range of masses of planetary atmospheres, ranging from less than a percent of the planet's total mass up to ~6 mass% of hydrogen, ~20 mass% of water, and/or ~5 mass% of carbon compounds. Hydrogen-rich atmospheres can be outgassed as a result of oxidizing metallic iron with water, and excess water and carbon can produce atmospheres through simple degassing. As a byproduct of our atmospheric outgassing models we find that modest initial water contents (10 mass% of the planet and above) create planets with deep surface liquid water oceans soon after accretion is complete.

L. Elkins-Tanton; S. Seager

2008-08-13T23:59:59.000Z

370

VEE-0075- In the Matter of Viking Range Corporation  

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

This Decision and Order considers an Application for Exception filed by Viking Range Corporation (Viking) seeking exception relief from the provisions of 10 C.F.R. Part 430, Energy Conservation...

371

Diachroneity of Basin and Range Extension and Yellowstone Hotspot...  

Open Energy Info (EERE)

km of slip along a west-dipping normal fault on the west side of the range. Apatite fission-track data from the Santa Rosa footwall block indicate that faulting and extension...

372

INL Stand-Off Experiment Range will support critical national...  

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

INL Stand-Off Experiment Range will support critical national security missions Idaho Falls, ID - The U.S. Department of Energy has issued a Finding of No Significant Impact...

373

Skill of Medium-Range Hydrological Ensemble Predictions  

Science Conference Proceedings (OSTI)

A hydrological ensemble prediction system, integrating a water balance model with ensemble precipitation forecasts from the European Centre for Medium-Range Weather Forecasts (ECMWF) Ensemble Prediction System (EPS), is evaluated for two Belgian ...

Emmanuel Roulin; Stéphane Vannitsem

2005-10-01T23:59:59.000Z

374

Noise-optimal capture for high dynamic range photography  

E-Print Network (OSTI)

Taking multiple exposures is a well-established approach both for capturing high dynamic range (HDR) scenes and for noise reduction. But what is the optimal set of photos to capture? The typical approach to HDR capture ...

Hasinoff, Samuel William

375

Compressing proteomes: the relevance of medium range correlations  

Science Conference Proceedings (OSTI)

We study the nonrandomness of proteome sequences by analysing the correlations that arise between amino acids at a short and medium range, more specifically, between amino acids located 10 or 100 residues apart; respectively. We show that statistical ...

Dario Benedetto; Emanuele Caglioti; Claudia Chica

2007-01-01T23:59:59.000Z

376

Evaluation of a Short-Range Multimodel Ensemble System  

Science Conference Proceedings (OSTI)

Forecasts from the National Centers for Environmental Prediction’s experimental short-range ensemble system are examined and compared with a single run from a higher-resolution model using similar computational resources. The ensemble consists of ...

Matthew S. Wandishin; Steven L. Mullen; David J. Stensrud; Harold E. Brooks

2001-04-01T23:59:59.000Z

377

Property:CommunityEnergyToolsCostRange | Open Energy Information  

Open Energy Info (EERE)

search This is a property of type String. The allowed values for this property are: Free Paid Pages using the property "CommunityEnergyToolsCostRange" Showing 2 pages using...

378

Tonopah Test Range Summary of Corrective Action Units  

SciTech Connect

Corrective Action Sites (CASs) and Corrective Action Units (CAUs) at the Tonopah Test Range (TTR) may be placed into three categories: Clean Closure/No Further Action, Closure in Place, or Closure in Progress.

Ronald B. Jackson

2007-05-01T23:59:59.000Z

379

Geothermal Resource Analysis and Structure of Basin and Range Systems,  

Open Energy Info (EERE)

Analysis and Structure of Basin and Range Systems, Analysis and Structure of Basin and Range Systems, Especially Dixie Valley Geothermal Field, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geothermal Resource Analysis and Structure of Basin and Range Systems, Especially Dixie Valley Geothermal Field, Nevada Authors David D. Blackwell, Kenneth W. Wisian, Maria C. Richards, Mark Leidig, Richard Smith and Jason McKenna Published U.S. Department of Energy, 2003 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Geothermal Resource Analysis and Structure of Basin and Range Systems, Especially Dixie Valley Geothermal Field, Nevada Citation David D. Blackwell,Kenneth W. Wisian,Maria C. Richards,Mark Leidig,Richard Smith,Jason McKenna. 2003. Geothermal Resource Analysis and Structure of

380

Steady state deformation of the Coso Range, east central California,  

Open Energy Info (EERE)

Steady state deformation of the Coso Range, east central California, Steady state deformation of the Coso Range, east central California, inferred from satellite radar interferometry Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Steady state deformation of the Coso Range, east central California, inferred from satellite radar interferometry Details Activities (2) Areas (1) Regions (0) Abstract: Observations of deformation from 1992 to 1997 in the southern Coso Range using satellite radar interferometry show deformation rates of up to 35 mm yr -1 in an area approximately 10 km by 15 km. The deformation is most likely the result of subsidence in an area around the Coso geothermal field. The deformation signal has a short-wavelength component, related to production in the field, and a long-wavelength component,

Note: This page contains sample records for the topic "tp4 range distance" 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

Extended-Range Atmospheric Prediction and the Lorenz Model  

Science Conference Proceedings (OSTI)

The physical basis for extended-range prediction is explored using the famous three-component Lorenz convection model, taken as a conceptual representation of the chaotic extratropical circulation, and extended by coupling to a linear oscillator ...

T. N. Palmer

1993-01-01T23:59:59.000Z

382

HIGH DYNAMIC-RANGE HIGH SPEED LINAC CURRENT MEASUREMENTS  

SciTech Connect

It is desired to measure the linac current of a charged particle beam with a consistent accuracy over a dynamic range of over 120 dB. Conventional current transformers suffer from droop, can be susceptible to electromagnetic interference (EMI), and can be bandwidth limited. A novel detector and electronics were designed to maximize dynamic range of about 120 dB and measure rise-times on the order of 10 nanoseconds.

Deibele, Craig Edmond [ORNL; Curry, Douglas E [ORNL; Dickson, Richard W [ORNL

2012-01-01T23:59:59.000Z

383

Front Range Forest Health Partnership Phase 1 feasibility study  

DOE Green Energy (OSTI)

The Front Range Forest Health Partnership is an alliance of individuals, citizen groups, federal, state, private, and nonprofit organizations that formed to promote forest health restoration and reduce fire risks on Colorado's Front Range. The partnership promotes selective thinning to restore forest health and supports economically feasible end uses for wood waste materials. The Phase I study was initiated to determine the environmental and economic feasibility of using wood wastes from forested and urban areas for the production of fuel-grade ethanol.

Volkin, P

1998-09-01T23:59:59.000Z

384

Idaho National Laboratory Radiological Response Training Range draft  

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

Idaho National Laboratory Radiological Response Training Range draft environmental assessment available for public review and comment Idaho National Laboratory Radiological Response Training Range draft environmental assessment available for public review and comment August 4, 2010 Media contact: Brad Bugger, 208-526-0833 The public is invited to read and comment on a draft environmental assessment that the U.S. Department of Energy has published for a proposed radiological response training range at the Idaho National Laboratory (INL). At the range, INL experts would train personnel, conduct exercises, and perform technology evaluation and demonstrations in support of national technical nuclear forensic and radiological emergency response programs. �The Radiological Response Training Range will allow emergency responders to prepare for a major radiological incident by training in an environment that safely simulates scenarios they might encounter,� said Vic Pearson, DOE�s document manager for the environmental assessment. �Activities at the range would directly support the nation�s readiness to respond to a radiological incident, but more importantly, would enable responders to develop proficiency in characterizing the scene in support of determining the origins of the incident.�

385

Fractal nature of medium-range order in metallic glasses  

Science Conference Proceedings (OSTI)

The atomic structure of metallic glasses has been a long-standing scientific mystery. Unlike crystalline metals, where long-range ordering is established by periodic stacking of fundamental building blocks known as unit cells, a metallic glass has no long-range translational order, although some degrees of short- and medium-range order do exist.1,2,3 Previous studies1,2,3,4 have identified solute-centered clusters, characterized by short-range order (SRO) in favor of unlike bonds, as the fundamental building blocks of metallic glasses. However, how these building blocks are connected or packed to form the medium range order (MRO) remains an open question.1,2,3 Here, based on neutron and x-ray diffraction experiments, we propose a new packing scheme - the self-similar packing of atomic clusters. We show that MRO has the characteristics of a fractal network with a dimension of 2.38, and is described by a power-law correlation function over the medium-range length scale. Our finding provides a new prospective of order in disordered materials and has broad implications for understanding the structure-property relationship in metallic glasses, particularly those involving change in length scales due to phase transformation and mechanical deformation.

Ma, Dong [ORNL; Stoica, Alexandru Dan [ORNL; Wang, Xun-Li [ORNL

2009-01-01T23:59:59.000Z

386

2768 IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, VOL. 55, NO. 12, DECEMBER 2008 Taser Blunt Probe Dart-To-Heart Distance Causing  

E-Print Network (OSTI)

Dart-To-Heart Distance Causing Ventricular Fibrillation in Pigs Jiun-Yan Wu, Student Member, IEEE. Webster*, Life Fellow, IEEE Abstract--The maximum distance between the heart and a model Taser stimulation dart, called the dart-to-heart distance, at which the Taser can directly cause ventricular fibrillation

Sheridan, Jennifer

387

Effect of distance to radiation treatment facility on use of radiation therapy after mastectomy in elderly women  

Science Conference Proceedings (OSTI)

Purpose: We sought to study the effect of distance to the nearest radiation treatment facility on the use of postmastectomy radiation therapy (PMRT) in elderly women. Methods and Materials: Using data from the linked Surveillance, Epidemiology, and End Results-Medicare (SEER-Medicare) database, we analyzed 19,787 women with Stage I or II breast cancer who received mastectomy as definitive surgery during 1991 to 1999. Multivariable logistic regression was used to investigate the association of distance with receipt of PMRT after adjusting for clinical and sociodemographic factors. Results: Overall 2,075 patients (10.5%) treated with mastectomy received PMRT. In addition to cancer and patient characteristics, in our primary analysis, increasing distance to the nearest radiation treatment facility was independently associated with a decreased likelihood of receiving PMRT (OR 0.996 per additional mile, p = 0.01). Secondary analyses revealed that the decline in PMRT use appeared at distances of more than 25 miles and was statistically significant for those patients living more than 75 miles from the nearest radiation facility (odds of receiving PMRT of 0.58 [95% CI 0.34-0.99] vs. living within 25 miles of such a facility). The effect of distance on PMRT appeared to be more pronounced with increasing patient age (>75 years). Variation in the effect of distance on radiation use between regions of the country and nodal status was also identified. Conclusions: Oncologists must be cognizant of the potential barrier to quality care that is posed by travel distance, especially for elderly patients; and policy makers should consider this fact in resource allocation decisions about radiation treatment centers.

Punglia, Rinaa S. [Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, MA (United States)]. E-mail: rpunglia@lroc.harvard.edu; Weeks, Jane C. [Division of Medical Oncology, Center for Outcomes and Policy Research, Dana-Farber Cancer Institute, Boston, MA (United States); Neville, Bridget A. [Division of Medical Oncology, Center for Outcomes and Policy Research, Dana-Farber Cancer Institute, Boston, MA (United States); Earle, Craig C. [Division of Medical Oncology, Center for Outcomes and Policy Research, Dana-Farber Cancer Institute, Boston, MA (United States)

2006-09-01T23:59:59.000Z

388

Serial Section Registration of Axonal Confocal Microscopy Datasets for Long-Range Neural Circuit Reconstruction  

SciTech Connect

In the context of long-range digital neural circuit reconstruction, this paper investigates an approach for registering axons across histological serial sections. Tracing distinctly labeled axons over large distances allows neuroscientists to study very explicit relationships between the brain's complex interconnects and, for example, diseases or aberrant development. Large scale histological analysis requires, however, that the tissue be cut into sections. In immunohistochemical studies thin sections are easily distorted due to the cutting, preparation, and slide mounting processes. In this work we target the registration of thin serial sections containing axons. Sections are first traced to extract axon centerlines, and these traces are used to define registration landmarks where they intersect section boundaries. The trace data also provides distinguishing information regarding an axon's size and orientation within a section. We propose the use of these features when pairing axons across sections in addition to utilizing the spatial relationships amongst the landmarks. The global rotation and translation of an unregistered section are accounted for using a random sample consensus (RANSAC) based technique. An iterative nonrigid refinement process using B-spline warping is then used to reconnect axons and produce the sought after connectivity information.

Hogrebe, Luke; Paiva, Antonio R.; Jurrus, Elizabeth R.; Christensen, Cameron; Bridge, Michael; Dai, Li; Pfeiffer, Rebecca; Hof, Patrick; Roysam, Badrinath; Korenberg, Julie; Tasdizen, Tolga

2012-06-15T23:59:59.000Z

389

Ultrananocrystalline diamond cantilever wide dynamic range acceleration/vibration/pressure sensor  

DOE Patents (OSTI)

An ultrananocrystalline diamond (UNCD) element formed in a cantilever configuration is used in a highly sensitive, ultra-small sensor for measuring acceleration, shock, vibration and static pressure over a wide dynamic range. The cantilever UNCD element may be used in combination with a single anode, with measurements made either optically or by capacitance. In another embodiment, the cantilever UNCD element is disposed between two anodes, with DC voltages applied to the two anodes. With a small AC modulated voltage applied to the UNCD cantilever element and because of the symmetry of the applied voltage and the anode-cathode gap distance in the Fowler-Nordheim equation, any change in the anode voltage ratio V1/N2 required to maintain a specified current ratio precisely matches any displacement of the UNCD cantilever element from equilibrium. By measuring changes in the anode voltage ratio required to maintain a specified current ratio, the deflection of the UNCD cantilever can be precisely determined. By appropriately modulating the voltages applied between the UNCD cantilever and the two anodes, or limit electrodes, precise independent measurements of pressure, uniaxial acceleration, vibration and shock can be made. This invention also contemplates a method for fabricating the cantilever UNCD structure for the sensor.

Krauss, Alan R. (Naperville, IL); Gruen, Dieter M. (Downers Grove, IL); Pellin, Michael J. (Naperville, IL); Auciello, Orlando (Bolingbrook, IL)

2002-07-23T23:59:59.000Z

390

Ultrananocrystalline Diamond Cantilever Wide Dynamic Range Acceleration/Vibration /Pressure Sensor  

DOE Patents (OSTI)

An ultrananocrystalline diamond (UNCD) element formed in a cantilever configuration is used in a highly sensitive, ultra-small sensor for measuring acceleration, shock, vibration and static pressure over a wide dynamic range. The cantilever UNCD element may be used in combination with a single anode, with measurements made either optically or by capacitance. In another embodiment, the cantilever UNCD element is disposed between two anodes, with DC voltages applied to the two anodes. With a small AC modulated voltage applied to the UNCD cantilever element and because of the symmetry of the applied voltage and the anode-cathode gap distance in the Fowler-Nordheim equation, any change in the anode voltage ratio V1/V2 required to maintain a specified current ratio precisely matches any displacement of the UNCD cantilever element from equilibrium. By measuring changes in the anode voltage ratio required to maintain a specified current ratio, the deflection of the UNCD cantilever can be precisely determined. By appropriately modulating the voltages applied between the UNCD cantilever and the two anodes, or limit electrodes, precise independent measurements of pressure, uniaxial acceleration, vibration and shock can be made. This invention also contemplates a method for fabricating the cantilever UNCD structure for the sensor.

Krauss, Alan R. (Naperville, IL); Gruen, Dieter M. (Downers Grove, IL); Pellin, Michael J. (Naperville, IL); Auciello, Orlando (Bolingbrook, IL)

2003-09-02T23:59:59.000Z

391

Comparison of Near-field and Far-field Air Monitoring of Plutonium-contaminated Soils from the Tonopah Test Range, Nevada  

SciTech Connect

Operation Roller Coaster, a series of nuclear material dispersal experiments, resulted in three areas (Clean Slates 1, 2, and 3) of widespread surface soil plutonium (Pu) contamination on the Tonopah Test Range (TTR), located 225 miles northwest of Las Vegas, Nevada. The State's Division of Environmental Protection raised concerns that dispersal of airborne Pu particles from the sites could result in undetected deposition further downwind that the background monitoring stations. Air monitoring data from different distances from the Clean Slate sites but during the same period of time were compared. From the available data, there is no indication that airborne PM10 particles are being transported to the farther distance,however, the data are statistically insufficient to conclude whether there is a difference in transport of respirable Pu particles to the closer verses the farther sites from the Clean Slate sites.

John L. Bowen; David S. Shafer

2001-05-01T23:59:59.000Z

392

DIRECT Distances to Nearby Galaxies Using Detached Eclipsing Binaries and Cepheids; 4, Variables in the Field M31D  

E-Print Network (OSTI)

We undertook a long term project, DIRECT, to obtain the direct distances to two important galaxies in the cosmological distance ladder -- M31 and M33 -- using detached eclipsing binaries (DEBs) and Cepheids. While rare and difficult to detect, DEBs provide us with the potential to determine these distances with an accuracy better than 5%. The extensive photometry obtained in order to detect DEBs provides us with good light curves for the Cepheid variables. These are essential to the parallel project to derive direct Baade-Wesselink distances to Cepheids in M31 and M33. For both Cepheids and eclipsing binaries, the distance estimates will be free of any intermediate steps. As a first step in the DIRECT project, between September 1996 and October 1997 we obtained 95 full/partial nights on the F. L. Whipple Observatory 1.2 m telescope and 36 full nights on the Michigan-Dartmouth-MIT 1.3 m telescope to search for DEBs and new Cepheids in the M31 and M33 galaxies. In this paper, fourth in the series, we present th...

Kaluzny, J; Stanek, K Z; Krockenberger, M; Sasselov, D D; Tonry, J L; Mateo, M

1999-01-01T23:59:59.000Z

393

DIRECT Distances to Nearby Galaxies Using Detached Eclipsing Binaries and Cepheids; 5, Variables in the Field M31F  

E-Print Network (OSTI)

We undertook a long term project, DIRECT, to obtain the direct distances to two important galaxies in the cosmological distance ladder -- M31 and M33 -- using detached eclipsing binaries (DEBs) and Cepheids. While rare and difficult to detect, DEBs provide us with the potential to determine these distances with an accuracy better than 5%. The extensive photometry obtained in order to detect DEBs provides us with good light curves for the Cepheid variables. These are essential to the parallel project to derive direct Baade-Wesselink distances to Cepheids in M31 and M33. For both Cepheids and eclipsing binaries, the distance estimates will be free of any intermediate steps. As a first step in the DIRECT project, between September 1996 and October 1997 we obtained 95 full/partial nights on the F. L. Whipple Observatory 1.2 m telescope and 36 full nights on the Michigan-Dartmouth-MIT 1.3 m telescope to search for DEBs and new Cepheids in the M31 and M33 galaxies. In this paper, fifth in the series, we present the...

Mochejska, B J; Stanek, K Z; Krockenberger, M; Sasselov, D D

1999-01-01T23:59:59.000Z

394

DIRECT Distances to Nearby Galaxies Using Detached Eclipsing Binaries and Cepheids; 2, Variables in the Field M31A  

E-Print Network (OSTI)

We undertook a long term project, DIRECT, to obtain the direct distances to two important galaxies in the cosmological distance ladder -- M31 and M33, using detached eclipsing binaries (DEBs) and Cepheids. While rare and difficult to detect, detached eclipsing binaries provide us with the potential to determine these distances with an accuracy better than 5%. The massive photometry obtained in order to detect DEBs provides us with the light curves for the Cepheid variables. These are essential to the parallel project to derive direct Baade-Wesselink distances to Cepheids in M31 and M33. For both Cepheids and eclipsing binaries the distance estimates will be free of any intermediate steps. As a first step of the DIRECT project, between September 1996 and January 1997 we have obtained 36 full nights on the Michigan-Dartmouth-MIT (MDM) 1.3-meter telescope and 45 full/partial nights on the F. L. Whipple Observatory (FLWO) 1.2-meter telescope to search for detached eclipsing binaries and new Cepheids in the M31 an...

Stanek, K Z; Krockenberger, M; Sasselov, D D; Tonry, J L; Mateo, M

1998-01-01T23:59:59.000Z

395

DIRECT Distances to Nearby Galaxies Using Detached Eclipsing Binaries and Cepheids; 1, Variables in the Field M31B  

E-Print Network (OSTI)

We undertook a long term project, DIRECT, to obtain the direct distances to two important galaxies in the cosmological distance ladder - M31 and M33, using detached eclipsing binaries (DEBs) and Cepheids. While rare and difficult to detect, detached eclipsing binaries provide us with the potential to determine these distances with an accuracy better than 5%. The massive photometry obtained in order to detect DEBs provides us with good light curves for the Cepheid variables. These are essential to the parallel project to derive direct Baade-Wesselink distances to Cepheids in M31 and M33. For both Cepheids and eclipsing binaries the distance estimates will be free of any intermediate steps. As a first step of the DIRECT project, between September 1996 and January 1997 we have obtained 36 full nights on the Michigan-Dartmouth-MIT (MDM) 1.3-meter telescope and 45 full/partial nights on the F. L. Whipple Observatory (FLWO) 1.2-meter telescope to search for detached eclipsing binaries and new Cepheids in the M31 an...

Kaluzny, J; Krockenberger, M; Sasselov, D D; Tonry, J L; Mateo, M

1997-01-01T23:59:59.000Z

396

DIRECT Distances to Nearby Galaxies Using Detached Eclipsing Binaries and Cepheids; 3, Variables in the Field M31C  

E-Print Network (OSTI)

We undertook a long term project, DIRECT, to obtain the direct distances to two important galaxies in the cosmological distance ladder -- M31 and M33 -- using detached eclipsing binaries (DEBs) and Cepheids. While rare and difficult to detect, DEBs provide us with the potential to determine these distances with an accuracy better than 5%. The extensive photometry obtained in order to detect DEBs provides us with good light curves for the Cepheid variables. These are essential to the parallel project to derive direct Baade-Wesselink distances to Cepheids in M31 and M33. For both Cepheids and eclipsing binaries, the distance estimates will be free of any intermediate steps. As a first step in the DIRECT project, between September 1996 and October 1997 we obtained 95 full/partial nights on the F. L. Whipple Observatory 1.2 m telescope and 36 full nights on the Michigan-Dartmouth-MIT 1.3 m telescope to search for DEBs and new Cepheids in the M31 and M33 galaxies. In this paper, third in the series, we present the...

Stanek, K Z; Krockenberger, M; Sasselov, D D; Tonry, J L; Mateo, M

1999-01-01T23:59:59.000Z

397

Entanglement growth in quench dynamics with variable range interactions  

E-Print Network (OSTI)

Studying entanglement growth in quantum dynamics provides both insight into the underlying microscopic processes and information about the complexity of the quantum states, which is related to the efficiency of simulations on classical computers. Recently, experiments with trapped ions, polar molecules, and Rydberg excitations have provided new opportunities to observe dynamics with long-range interactions. We explore nonequilibrium coherent dynamics after a quantum quench in such systems, identifying qualitatively different behavior as the exponent of algebraically decaying spin-spin interactions in a transverse Ising chain is varied. Computing the build-up of bipartite entanglement as well as mutual information between distant spins, we identify linear growth of entanglement entropy corresponding to propagation of quasiparticles for shorter range interactions, with the maximum rate of growth occurring when the Hamiltonian parameters match those for the quantum phase transition. Counter-intuitively, the growth of bipartite entanglement for long-range interactions is only logarithmic for most regimes, i.e., substantially slower than for shorter range interactions. Experiments with trapped ions allow for the realization of this system with a tunable interaction range, and we show that the different phenomena are robust for finite system sizes and in the presence of noise. These results can act as a direct guide for the generation of large-scale entanglement in such experiments, towards a regime where the entanglement growth can render existing classical simulations inefficient.

J. Schachenmayer; B. P. Lanyon; C. F. Roos; A. J. Daley

2013-05-29T23:59:59.000Z

398

Bringing a Range of Supported Mitigation Activities in Selected Countries  

Open Energy Info (EERE)

Bringing a Range of Supported Mitigation Activities in Selected Countries Bringing a Range of Supported Mitigation Activities in Selected Countries to the Next Level Jump to: navigation, search Name Bringing a Range of Supported Mitigation Activities in Selected Countries to the Next Level Agency/Company /Organization Energy Research Centre of the Netherlands (ECN), Ecofys Sector Climate Focus Area Renewable Energy, Agriculture, People and Policy Topics Low emission development planning, Policies/deployment programs Website http://www.ecn.nl/docs/library Program Start 2011 Program End 2014 Country Chile, Indonesia, Kenya, Peru, Tunisia South America, South-Eastern Asia, Eastern Africa, South America, Northern Africa References ECN[1] Ecofys[2] Program Overview This project runs from March 2012 to December 2014, and is a collaboration

399

Kinematic model for postorogenic Basin and Range extension | Open Energy  

Open Energy Info (EERE)

Kinematic model for postorogenic Basin and Range extension Kinematic model for postorogenic Basin and Range extension Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Kinematic model for postorogenic Basin and Range extension Details Activities (1) Areas (1) Regions (0) Abstract: The Raft River extensional shear zone is exposed in the Albion-Raft River-Grouse Creek metamorphic core complex. Several studies of ductile deformation have shown that it accommodated crustal stretching in Tertiary time during late orogenic collapse of the thickened Cordilleran crust. Progressive deformation that results from mixed pure and simple shear produces a complex strain pattern along the shear zone. The authors propose a numerical kinematic model that relates strain variations in the shear zone to the different amounts of extension between the brittlely

400

China Lake South Range Geothermal Project | Open Energy Information  

Open Energy Info (EERE)

China Lake South Range Geothermal Project China Lake South Range Geothermal Project Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Development Project: China Lake South Range Geothermal Project Project Location Information Coordinates 35.65°, -117.66166666667° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.65,"lon":-117.66166666667,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "tp4 range distance" 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

Charge exchange stripping cell measurements over a wide pressure range  

SciTech Connect

The efficiency of the stripping cell incorporated in a charge exchange analyzer has been measured over a pressure range of 1.8 to 130 mtorr and over an energy range of 1 to 130 keV/amu. In these measurements, a beam of hydrogen atoms was ionized by helium gas. As a by-product of the measurements, the scattering cross section was also measured. At the lowest pressure, the scattering cross section compared well with those measured previously; at high pressure, the cross section no longer followed an energy power law. The analyzer efficiency (defined as the fraction of the atoms that is ionized and not lost through scattering) can be modeled over the entire range of energy and pressure by including the measured scattering cross sections.

Colchin, R.J.; Roquemore, A.L.; Scott, S.D.

1988-01-01T23:59:59.000Z

402

Geographic Information System At Northern Basin & Range Region (Coolbaugh,  

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 Page Edit History Facebook icon Twitter icon » Geographic Information System At Northern Basin & Range Region (Coolbaugh, Et Al., 2005 - 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At Northern Basin & Range Region (Coolbaugh, Et Al., 2005 - 2) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown References Mark Coolbaugh, Richard Zehner, Corne Kreemer, David Blackwell, Gary Oppliger (2005) A Map Of Geothermal Potential For The Great Basin, Usa-

403

Property:OpenEI/Tool/CostRange | Open Energy Information  

Open Energy Info (EERE)

CostRange CostRange Jump to: navigation, search This is a property of type String. Subproperties This property has the following 1 subproperty: O Property:OpenEI/Tool/CostType Pages using the property "OpenEI/Tool/CostRange" Showing 25 pages using this property. (previous 25) (next 25) 2 2008 Solar Technologies Market Report + Free + 2011 APTA Public Transportation Fact Book + Free + A A Case for Climate Neutrality: Case Studies on Moving Towards a Low Carbon Economy + Free + A New Scheme for the Promotion of Renewable Energies in Developing Countries: The Renewable Energy Regulated Purchase Tariff + Free + ADB-Methods and Tools for Energy Demand Projection + Free + AGI-32 + Paid + APEC-Alternative Transport Fuels: Implementation Guidelines + Free + APFED-Good Practice Database + Free +

404

Ground magnetic survey in the Coso Range, California | Open Energy  

Open Energy Info (EERE)

Ground magnetic survey in the Coso Range, California Ground magnetic survey in the Coso Range, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Ground magnetic survey in the Coso Range, California Details Activities (1) Areas (1) Regions (0) Abstract: A ground magnetic study was completed in the Coso volcanic field to investigate faulting and associated hydrothermal alteration patterns. The magnetic intensity contours match general geologic patterns in varying rock types. Hydrothermally altered rocks along intersecting fault zones show up as strong magnetic lows that form a triangular-shaped area. This area is centered in an area of highest heat flow and is a site of concentrated fumarolic activity. In the Coso volcanic field the combination of high heat flow, fumarolic activity, magnetic lows, and hydrothermal

405

Numerical Modeling Of Basin And Range Geothermal Systems | Open Energy  

Open Energy Info (EERE)

Numerical Modeling Of Basin And Range Geothermal Systems Numerical Modeling Of Basin And Range Geothermal Systems Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Numerical Modeling Of Basin And Range Geothermal Systems Details Activities (3) Areas (3) Regions (0) Abstract: Basic qualitative relationships for extensional geothermal systems that include structure, heat input, and permeability distribution have been established using numerical models. Extensional geothermal systems, as described in this paper, rely on deep circulation of groundwater rather than on cooling igneous bodies for heat, and rely on extensional fracture systems to provide permeable upflow paths. A series of steady-state, two-dimensional simulation models is used to evaluate the effect of permeability and structural variations on an idealized, generic

406

Long-Range Energy Alternatives Planning System (LEAP) | Open Energy  

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 » Long-Range Energy Alternatives Planning System (LEAP) Jump to: navigation, search LEDSGP green logo.png FIND MORE DIA TOOLS This tool is part of the Development Impacts Assessment (DIA) Toolkit from the LEDS Global Partnership. Tool Summary LAUNCH TOOL Name: Long-Range Energy Alternatives Planning System (LEAP) Agency/Company /Organization: Stockholm Environmental Institute Sector: Climate, Energy Topics: Potentials & Scenarios Complexity/Ease of Use: Moderate Website: www.energycommunity.org/default.asp?action=47 Cost: Free Equivalent URI: cleanenergysolutions.org/content/long-range-energy-alternatives-planni

407

Compound and Elemental Analysis At Northern Basin & Range Region  

Open Energy Info (EERE)

(Coolbaugh, Et Al., 2010) (Coolbaugh, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Compound and Elemental Analysis At Northern Basin & Range Region (Coolbaugh, Et Al., 2010) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Compound and Elemental Analysis Activity Date Usefulness useful DOE-funding Unknown Notes "This second paper provides more detailed documentation on water and rock geochemistries and describes diagnostic major and trace element ratios and concentrations that can be used to distinguish tufa columns formed from thermal waters from those that formed from non-thermal waters." "In addition to providing a potentially diagnostic lithogeochemical tool for

408

Generalized similarity in finite range solar wind magnetohydrodynamic turbulence  

E-Print Network (OSTI)

Extended or generalized similarity is a ubiquitous but not well understood feature of turbulence that is realized over a finite range of scales. ULYSSES spacecraft solar polar passes at solar minimum provide \\textit{in situ} observations of evolving anisotropic magnetohydrodynamic turbulence in the solar wind under ideal conditions of fast quiet flow. We find a single generalized scaling function characterises this finite range turbulence and is insensitive to plasma conditions. The recent unusually inactive solar minimum -with turbulent fluctuations down by a factor of $\\sim 2$ in power- provides a test of this invariance.

Chapman, S C

2009-01-01T23:59:59.000Z

409

Sensitivity of the DANSS detector to short range neutrino oscillations  

E-Print Network (OSTI)

DANSS is a highly segmented 1m^3 plastic scintillator detector. It's 2500 scintillator strips have a Gd loaded reflective cover. Light is collected with 3 wave length shifting fibers per strip and read out with 50 PMTs and 2500 SiPMs. The DANSS will be installed under the industrial 3 GW reactor of the Kalinin Nuclear Power Plant at distances varying from 9.7m to 12.2m from the reactor core. Tests of the detector prototype DANSSino demonstrated that in spite of a small size (20x20x100 cm^3) it is quite sensitive to reactor antineutrinos, detecting about 70 Inverse Beta Decay events per day with the signal-to-background ratio of about unity. The prototype tests have demonstrated feasibility to reach the design performance of the DANSS detector. The DANSS experiment will detect about 10 thousand antineutrino events per day with a background below ~1%. Detector will be calibrated every day and its position will be changed frequently to reduce systematic errors. These features will provide a high sensitivity to reactor antineutrino oscillations to sterile neutrinos, suggested recently to explain a so-called "reactor anomaly". Data taking will start already next year.

M. Danilov

2013-11-12T23:59:59.000Z

410

Distance to the scaling law: a useful approach for unveiling relationships between crime and urban metrics  

E-Print Network (OSTI)

We report on a quantitative analysis of relationships between the number of homicides, population size and other ten urban metrics. By using data from Brazilian cities, we show that well defined average scaling laws with the population size emerge when investigating the relations between population and number of homicides as well as population and urban metrics. We also show that the fluctuations around the scaling laws are log-normally distributed, which enabled us to model these scaling laws by a stochastic-like equation driven by a multiplicative and log-normally distributed noise. Because of the scaling laws, we argue that it is better to employ logarithms in order to describe the number of homicides in function of the urban metrics via regression analysis. In addition to the regression analysis, we propose an approach to correlate crime and urban metrics via the evaluation of the distance between the actual value of the number of homicides (as well as the value of the urban metrics) and the value that is...

Alves, Luiz G A; Lenzi, Ervin K; Mendes, Renio S

2013-01-01T23:59:59.000Z

411

Long-distance contributions to D{sup 0}-D{sup 0} mixing parameters  

SciTech Connect

Long-distance contributions to the D{sup 0}-D{sup 0} mixing parameters x and y are evaluated using latest data on hadronic D{sup 0} decays. In particular, we take on two-body D{yields}PP and VP decays to evaluate the contributions of two-body intermediate states because they account for {approx}50% of hadronic D{sup 0} decays. Use of the diagrammatic approach has been made to estimate yet-observed decay modes. We find that y is of order a few x10{sup -3} and x of order 10{sup -3} from hadronic PP and VP modes. These are in good agreement with the latest direct measurement of D{sup 0}-D{sup 0} mixing parameters using the D{sup 0{yields}}K{sub S{pi}}{sup +{pi}-} and K{sub S}K{sup +}K{sup -} decays by BABAR. We estimate the contribution to y from the VV modes using the factorization model and comment on the single-particle resonance effects and contributions from other two-body modes involving even-parity states.

Cheng Haiyang [Institute of Physics, Academia Sinica, Taipei, Taiwan 115 (China); Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States); Chiang, C.-W. [Department of Physics and Center for Mathematics and Theoretical Physics, National Central University, Chungli, Taiwan 320 (China); Institute of Physics, Academia Sinica, Taipei, Taiwan 115 (China)

2010-06-01T23:59:59.000Z

412

Toward a better understanding of the gamma index: Investigation of parameters with a surface-based distance method  

SciTech Connect

Purpose: The purpose of this work was to clarify the interactions between the parameters used in the {gamma} index with the surface-based distance method, which itself can be viewed as a generalized version of the {gamma} index. The examined parameters included the distance to agreement (DTA)/dose difference (DD) criteria, the percentage used as a passing criterion, and the passing percentage for given DTA/DD criteria. The specific aims of our work were (1) to understand the relationships between the parameters used in the {gamma} index, (2) to determine the detection limit, or the minimum detectable error, of the {gamma} index with a given set of parameters, and (3) to establish a procedure to determine parameters that are consistent with the capacity of an IMRT QA system. Methods: The surface-based distance technique with dose gradient factor was derived, and then the relationship between surface-based distance and {gamma} index was established. The dose gradient factor for plans and measurements of 10 IMRT patients, 10 spine stereotactic radiosurgery (SRS) patients, and 3 Radiological Physics Center (RPC) head and neck phantom were calculated and evaluated. The detection limits of the surface-based distance and {gamma} index methods were examined by introducing known shifts to the 10 IMRT plans. Results: The means of the dose gradient factors were 0.434 mm/% and 0.956 mm/% for the SRS and IMRT plans, respectively. Key quantities (including the mean and 90th and 99th percentiles of the distance distribution) of the surface-based distance distribution between two dose distributions were linearly proportional to the actual shifts. However, the passing percentage of the {gamma} index for a given set of DTA/DD criteria was not associated with the actual shift. For IMRT, using the standard quality assurance criteria of 3 mm/3% DTA/DD and a 90% passing rate, we found that the detection limit of the {gamma} index in terms of global shift was 4.07 mm/4.07 % without noise. Conclusions: Surface-based distance is a direct measure of the difference between two dose distributions and can be used to evaluate or determine parameters for use in calculating the {gamma} index. The dose gradient factor represents the weighting between spatial and dose shift and should be determined before DTA/DD criteria are set. The authors also present a procedure to determine {gamma} index parameters from measurements.

Li Heng; Dong Lei; Zhang Lifei; Yang, James N.; Gillin, Michael T.; Zhu, X. Ronald [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States)

2011-12-15T23:59:59.000Z

413

On using the WMAP distance priors in constraining the time evolving equation of state of dark energy  

E-Print Network (OSTI)

Recently, the WMAP group has published their five-year data and considered the constraints on the time evolving equation of state of dark energy for the first time from the WMAP distance information. In this paper, we study the effectiveness of the usage of these distance information and find that these compressed CMB information can give similar constraints on dark energy parameters compared with the full CMB power spectrum if dark energy perturbations are included, however, once incorrectly neglecting the dark energy perturbations, the difference of the results are sizable.

Hong Li; Jun-Qing Xia; Gong-Bo Zhao; Zu-Hui Fan; Xinmin Zhang

2008-05-08T23:59:59.000Z

414

On using the WMAP distance priors in constraining the time evolving equation of state of dark energy  

E-Print Network (OSTI)

Recently, the WMAP group has published their five-year data and considered the constraints on the time evolving equation of state of dark energy for the first time from the "WMAP distance priors". In this paper, we study the effectiveness of the usage of these distance priors and find that these compressed CMB information can give similar constraints on dark energy parameters compared with the full CMB power spectrum if dark energy perturbation is included, however, once incorrectly neglecting the dark energy perturbation, the difference of the results is sizable.

Li, Hong; Zhao, Gong-Bo; Fan, Zu-Hui; Zhang, Xinmin

2008-01-01T23:59:59.000Z

415

Long-Range Weather Prediction: Limits of Predictability and Beyond  

Science Conference Proceedings (OSTI)

The details of the weather are not predictable beyond one to two weeks. At longer time ranges, averages of the weather over space and time can be usefully predicted only to the extent that the variations of the averages exceed the “noise” ...

Edward S. Epstein

1988-03-01T23:59:59.000Z

416

Under the skin: short-range embedded wireless technology  

Science Conference Proceedings (OSTI)

The number of computing, telecommunications and electronic devices in everyday life has been rapidly increasing over the past two decades. Typically, personal computers and related devices are connected with special cables, whilst wireless devices such ... Keywords: Applications, Electronic devices, Short-range wireless, Standards

Stuart J. Barnes

2002-06-01T23:59:59.000Z

417

Aspects of Effective Mesoscale, Short-Range Ensemble Forecasting  

Science Conference Proceedings (OSTI)

This study developed and evaluated a short-range ensemble forecasting (SREF) system with the goal of producing useful, mesoscale forecast probability (FP). Real-time, 0–48-h SREF predictions were produced and analyzed for 129 cases over the ...

F. Anthony Eckel; Clifford F. Mass

2005-06-01T23:59:59.000Z

418

Control for Localization of Targets using Range-only Sensors  

Science Conference Proceedings (OSTI)

We present an application of a novel framework and algorithms for: (1) conservatively and recursively incorporating information obtained through sensors that yield observations that are non-linear functions of the state; and (2) finding control inputs ... Keywords: control for localization, multi-robot estimation, nonlinear estimation, over parameterization, range-only localization, set-theoretic techniques

Ethan Stump; Vijay Kumar; Ben Grocholsky; Pedro M. Shiroma

2009-06-01T23:59:59.000Z

419

A Review of Long-Range Transport Modeling  

Science Conference Proceedings (OSTI)

The various approaches to long-range transport modeling are outlined, and some of their virtues and shortcomings are discussed. Emphasis is put on models describing sulphur transport on the synoptic scale or from a few hundred up to 1000 km. Long-...

Anton Eliassen

1980-03-01T23:59:59.000Z

420

High dynamic range—a gateway for predictive ancient lighting  

Science Conference Proceedings (OSTI)

In the last few years, the number of projects involving historical reconstruction has increased significantly. Recent technologies have proven a powerful tool for a better understanding of our cultural heritage through which to attain a glimpse of the ... Keywords: Conimbriga, High dynamic range, eye adaptation, visualization

Alexandrino Gonçalves; Luís Magalhães; João Moura; Alan Chalmers

2009-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "tp4 range distance" 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

Range of Neutronic Parameters for Repository Criticality Analyses  

SciTech Connect

The ''Range of Neutronic Parameters for Repository Criticality Analyses'' technical report contains a summary of the benchmark criticality analyses (including the laboratory critical experiment [LCEs] and the commercial reactor criticals [CRCs]) used to support the validation of the criticality evaluation methods. This report also documents the development of the Critical Limits (CLs) for the repository criticality analyses.

W.J. Anderson

1999-09-28T23:59:59.000Z

422

Does increasing model stratospheric resolution improve extended range forecast skill?  

E-Print Network (OSTI)

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

423

ENSEMBLE RE-FORECASTING : IMPROVING MEDIUM-RANGE FORECAST SKILL  

E-Print Network (OSTI)

5.5 ENSEMBLE RE-FORECASTING : IMPROVING MEDIUM-RANGE FORECAST SKILL USING RETROSPECTIVE FORECASTS, Colorado 1. INTRODUCTION Improving weather forecasts is a primary goal of the U.S. National Oceanic predictions has been to improve the accuracy of the numerical forecast models. Much effort has been expended

Hamill, Tom

424

Remarks on the Potential for Long-Range Forecasting  

Science Conference Proceedings (OSTI)

This paper, originally delivered as a lecture before the DOE-sponsored Workshop on Climate and Energy, offers some comments on the state-of-the-art of long-range weather forecasting based on the author's extensive decades of experience. An ...

Jerome Namias

1985-02-01T23:59:59.000Z

425

Spectral gap for the zero range process with constant rate  

E-Print Network (OSTI)

We solve an open problem concerning the relaxation time (inverse spectral gap) of the zero range process in $\\mathbf {Z}^d/L\\mathbf {Z}^d$ with constant rate, proving a tight upper bound of $O((\\rho +1)^2L^2)$, where $\\rho$ is the density of particles.

Ben Morris

2004-05-10T23:59:59.000Z

426

Technique for extending the range of a signal measuring circuit  

DOE Patents (OSTI)

An input signal supplied to a signal measuring circuit is either amplified or attenuated as necessary to establish the magnitude of the input signal within the defined dynamic range of the measuring circuit and the output signal developed by the measuring circuit is subsequently readjusted through amplification or attenuation to develop an output signal which corresponds to the magnitude of the initial input signal.

Chaprnka, Anthony G. (Cockeysville, MD); Sun, Shan C. (Pittsburgh, PA); Vercellotti, Leonard C. (Verona, PA)

1978-01-01T23:59:59.000Z

427

Effects of Range Burning on Kansas Flint Hills Soil  

E-Print Network (OSTI)

Effects of Range Burning on Kansas Flint Hills Soil CLENTON E. OWENSBY AND JOHN BRUCE WYRILL, III Highlight: Two tallgrass prairie areas burned annually for 20 (grazed) nnd 48 (un. grazed) years ar-spring burned ungrared plots were generally higher in soil pH, organic ma~fer, and K than late-spring burned

Owensby, Clenton E.

428

Robust relative orientation Challenges of close-range modeling  

E-Print Network (OSTI)

Robust relative orientation #12;Challenges of close-range modeling · Comparison to aerial tie points · statistically optimal · all observations and their uncertainties are used · most reliable · functional model · Design matrix: functional dependence between observations made and unknowns sought

Giger, Christine

429

Application of Short-Range Lidar in Wind Shear Alerting  

Science Conference Proceedings (OSTI)

Long-range lidar systems have been used operationally at the Hong Kong International Airport for wind shear alerting. They are used for monitoring the headwinds over the last 3 n mi of all of the runway corridors of the Hong Kong International ...

P. W. Chan; Y. F. Lee

2012-02-01T23:59:59.000Z

430

LLNL-JRNL-417371 On Long Range Interpolation  

E-Print Network (OSTI)

LLNL-JRNL-417371 On Long Range Interpolation Operators for Aggressive Coarsening Ulrike Meier Yang-CG applying various interpolation operators to Problem 4 (LLNL) with 500Ã?500 grid points per processor using H times for Problem 4 (LLNL) with approximately 86,000 grid points per processor using H1 coarsening No

431

Quantitative Assessment of Range Fluctuations in Charged Particle Lung Irradiation  

SciTech Connect

Purpose: Water equivalent path length (WEL) variations due to respiration can change the range of a charged particle beam and result in beam overshoot to critical organs or beam undershoot to tumor. We have studied range fluctuations by analyzing four-dimensional computed tomography data and quantitatively assessing potential beam overshoot. Methods and Materials: The maximal intensity volume is calculated by combining the gross tumor volume contours at each respiratory phase in the four-dimensional computed tomography study. The first target volume calculates the maximal intensity volume for the entire respiratory cycle (internal target volume [ITV]-radiotherapy [RT]), and the second target volume is the maximal intensity volume corresponding to gated RT (gated-RT, {approx}30% phase window around exhalation). A compensator at each respiratory phase is calculated. Two 'composite' compensators for ITV-RT and gated-RT are then designed by selecting the minimal compensator depth at the respective respiratory phase. These compensators are then applied to the four-dimensional computed tomography data to estimate beam penetration. Analysis metrics include range fluctuation and overshoot volume, both as a function of gantry angle. We compared WEL fluctuations observed in treating the ITV-RT versus gated-RT in 11 lung patients. Results: The WEL fluctuations were <21.8 mm-WEL and 9.5 mm-WEL for ITV-RT and gated-RT, respectively for all patients. Gated-RT reduced the beam overshoot volume by approximately a factor of four compared with ITV-RT. Such range fluctuations can affect the efficacy of treatment and result in an excessive dose to a distal critical organ. Conclusion: Time varying range fluctuation analysis provides information useful for determining appropriate patient-specific treatment parameters in charged particle RT. This analysis can also be useful for optimizing planning and delivery.

Mori, Shinichiro [Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (United States)], E-mail: shinshin@nirs.go.jp; Wolfgang, John; Lu, H.-M.; Schneider, Robert; Choi, Noah C.; Chen, George T.Y. [Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA (United States)

2008-01-01T23:59:59.000Z

432

NREL Reveals Links Among Climate Control, Battery Life, and Electric Vehicle Range (Fact Sheet), Innovation: The Spectrum of Clean Energy Innovation, NREL (National Renewable Energy Laboratory)  

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

Reveals Links Among Reveals Links Among Climate Control, Battery Life, and Electric Vehicle Range Researchers at the National Renewable Energy Laboratory (NREL) are providing new insights into the relationships between the climate-control systems of plug-in electric vehicles and the distances these vehicles can travel on a single charge. In particular, NREL research has determined that "preconditioning" a vehicle- achieving a comfortable cabin temperature and preheating or precooling the battery while the vehicle is still plugged in-can extend its driving range and improve battery life over the long term. One of the most significant barriers to widespread deployment of electric vehicles is range anxiety-a driver's uncertainty about the vehicle's ability to reach a destination before fully

433

Short range micro-power impulse radar with high resolution swept range gate with damped transmit and receive cavities  

DOE Patents (OSTI)

A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with atypical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna, so a background subtraction is not needed, simplifying the circuitry while improving performance. Uses of the invention include a replacement of ultrasound devices for fluid level sensing, automotive radar, such as cruise control and parking assistance, hidden object location, such as stud and rebar finding. Also, this technology can be used when positioned over a highway lane to collect vehicle count and speed data for traffic control. Techniques are used to reduce clutter in the receive signal, such as decoupling the receive and transmit cavities by placing a space between them, using conductive or radiative damping elements on the cavities, and using terminating plates on the sides of the openings. 20 figs.

McEwan, T.E.

1998-06-30T23:59:59.000Z

434

ORISE: Nuclear engineering degrees at highest ranges since 1980s  

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

ORISE report shows graduation, enrollment rates for nuclear engineering ORISE report shows graduation, enrollment rates for nuclear engineering candidates are still at highest ranges reported since 1980s Report also shows shifts in career opportunities beyond graduation in nuclear utilities FOR IMMEDIATE RELEASE Nov. 2, 2011 FY12-04 OAK RIDGE, Tenn.-After a one-year decline, the number of graduate and undergraduate nuclear engineering degrees earned in the United States bounced back in 2010. A recent report from the Oak Ridge Institute for Science and Education shows enrollments of both undergraduate and graduate nuclear engineering students are still in the highest ranges reported since the early 1980s. Despite the continued growth trend in enrollments and degrees, the report also revealed that the reported plans of graduates show fewer had plans to

435

Fallon Test Ranges Geothermal Project | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Fallon Test Ranges Geothermal Project Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Development Project: Fallon Test Ranges Geothermal Project Project Location Information Coordinates 39.425°, -118.70277777778° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.425,"lon":-118.70277777778,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

436

Geographic Information System At Northern Basin & Range Region (Laney,  

Open Energy Info (EERE)

Geographic Information System At Northern Basin & Geographic Information System At Northern Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Geographic Information System Activity Date Usefulness useful regional reconnaissance DOE-funding Unknown Notes Regional Assessment of Exploration Potential for Geothermal Systems in The Great Basin Using a Geographic Information System (GIS) - Part II, Coolbaugh, Zehner, Raines, Shevenell, Minor, Sawatzky and Oppliger. The objective is to generate new exploration targets for both conventional and EGS capable geothermal systems by analyzing regional data in a GIS. Digital geothermal data will be made available to industry and researchers on a web site. Relationships among the data will be explored using spatial

437

Blue Creek Winter Range: Wildlife Mitigation Project Final Environmental Assessment  

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

Creek Winter Range: Creek Winter Range: Wildlife Mitigation Project Final Environmental Assessment I F 8 - Spokane Tribe of Indians Bonneville POWER ADMINISTRATION B r n u r r o N aF THIS D O C ~ I H ~ E E 1% utifi_;'iUzi: w DOVEA-0939 November1 994 Bureay of Indian Affairs DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document. DISCLAIMER This report was .prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or

438

Multi-range force sensors utilizing shape memory alloys  

DOE Patents (OSTI)

The present invention provides a multi-range force sensor comprising a load cell made of a shape memory alloy, a strain sensing system, a temperature modulating system, and a temperature monitoring system. The ability of the force sensor to measure contact forces in multiple ranges is effected by the change in temperature of the shape memory alloy. The heating and cooling system functions to place the shape memory alloy of the load cell in either a low temperature, low strength phase for measuring small contact forces, or a high temperature, high strength phase for measuring large contact forces. Once the load cell is in the desired phase, the strain sensing system is utilized to obtain the applied contact force. The temperature monitoring system is utilized to ensure that the shape memory alloy is in one phase or the other.

Varma, Venugopal K. (Knoxville, TN)

2003-04-15T23:59:59.000Z

439

Broadband optical delay with large dynamic range using atomic dispersion  

E-Print Network (OSTI)

We report on a tunable all-optical delay line for pulses with optical frequency within the Rb $D_2$ absorption line. Pulses of 10 ns duration are delayed in a 10 cm hot vapour cell by up to 40 ns where the transmission reduces to approximately 10%. Using an optical frequency between absorption components from different isotopes allows the delay to be increased or decreased by optical pumping with a second laser, producing rapid tuning over a range more than 40% of the initial delay. We investigate the frequency and intensity ranges in which this delay line can be realised. Our observations are in good agreement with a numerical model of the system.

Vanner, M R; Sidorov, A I; Hannaford, P; Akulshin, A M

2007-01-01T23:59:59.000Z

440

Short-range tests of the equivalence principle  

SciTech Connect

We tested the equivalence principle at short length scales by rotating a 3 ton {sup 238}U attractor around a compact torsion balance containing Cu and Pb test bodies. The observed differential acceleration of the test bodies toward the attractor, a{sub Cu}-a{sub Pb}=(1.0{+-}2.8)x10{sup -13} cm/s{sup 2}, should be compared to the corresponding gravitational acceleration of 9.2x10{sup -5} cm/s{sup 2}. Our results set new constraints on equivalence-principle violating interactions with Yukawa ranges down to 1 cm, and improve by substantial factors existing limits for ranges between 10 km and 1000 km. Our data also set strong constraints on certain power-law potentials that can arise from two-boson exchange processes. (c) 1999 The American Physical Society.

Smith, G. L. [Department of Physics, University of Washington, Seattle, Washington 98195 (United States); Hoyle, C. D. [Department of Physics, University of Washington, Seattle, Washington 98195 (United States); Gundlach, J. H. [Department of Physics, University of Washington, Seattle, Washington 98195 (United States); Adelberger, E. G. [Department of Physics, University of Washington, Seattle, Washington 98195 (United States); Heckel, B. R. [Department of Physics, University of Washington, Seattle, Washington 98195 (United States); Swanson, H. E. [Department of Physics, University of Washington, Seattle, Washington 98195 (United States)

2000-01-15T23:59:59.000Z

Note: This page contains sample records for the topic "tp4 range distance" 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

Distance learning in toxicology: Resident and remote; Scotland, IPCS, IUPAC, and the world  

SciTech Connect

Globally, very few college or university chemistry courses incorporate toxicology although public perception of chemicals and the chemical industry as threats to health and the environment has had an adverse effect on chemistry and on the use of its products. The International Union for Pure and Applied Chemistry (IUPAC) through its Commission on Toxicology recognized this and, with the support of the Committee on the Teaching of Chemistry has used the IUPAC web site to promote distance learning in toxicology for chemists. After preparation of a thoroughly refereed consensus Glossary of Terms for Chemists of Terms Used in Toxicology, a textbook Fundamental Toxicology for Chemists and a set of educational modules entitled Essential Toxicology were compiled and put through the normal thorough review procedure of IUPAC before being approved by the organization. There is now an additional Glossary of Terms Used in Toxicokinetics. The modules are freely downloadable in Adobe PDF format and are designed to be used both by educators and by students. Educators are asked to select whatever is appropriate to their students and to use the material as they wish, adding content specifically relevant to their circumstances. For self-study, the web modules have self-assessment questions and model answers. Currently the original Glossary for Chemists of Terms Used in Toxicology is being revised and it is expected that this will lead to further developments. The currently available components of the IUPAC programme may be accessed through the IUPAC website at the Subcommittee on Toxicology and Risk Assessment page: http://www.iupac.org/divisions/VII/VII.C.2/index.html.

Duffus, John H. [Edinburgh Centre for Toxicology, 43 Mansionhouse Road, Edinburgh EH9 2JD, Scotland (United Kingdom)]. E-mail: J.H.Duffus@btinternet.com

2005-09-01T23:59:59.000Z

442

Going the Distance? NRC's Response to the National Academy of Science's Transportation Study  

Science Conference Proceedings (OSTI)

In February 2006, the National Academy of Sciences (NAS) published the results of a 3 1/2-year study, titled Going the Distance, that examined the safety of transporting spent nuclear fuel (SNF) and high level waste (HLW) in the United States. NAS initiated this study to address what it perceived to be a national need for an independent, objective, and authoritative analysis of SNF and HLW transport in the United States. The study was co-sponsored by the U.S. Nuclear Regulatory Commission (NRC), the U.S. Department of Energy (DOE), the U.S. Department of Transportation (DOT), the Electric Power Research Institute and the National Cooperative Highway Research Program. This paper addresses some of the recommendations made in the NAS study related to the performance of SNF transportation casks in long duration fires, the use of full-scale package testing, and the need for an independent review of transportation security prior to the commencement of large scale shipping campaigns to an interim storage site or geologic repository. In conclusion: The NRC believes that the current regulations in 10 CFR Part 71 for the design of SNF and HLW transportation packages provide a very high level of protection to the public for very severe accidents and credible threat scenarios. As recommended by the NAS study, additional studies of accidents involving severe fires have been completed. These studies have confirmed that spent fuel casks would be expected to withstand very severe fires without the release of any fission products from the spent fuel. Additionally, changes in rail operating procedures such as the use of dedicated trains and prohibition on the co-location of SNF and flammable liquids in rail tunnels can further reduce the already low probability of severe rail accident fires involving SNF and HLW. (authors)

Easton, E.P.; Bajwa, C.S. [United States Nuclear Regulatory Commission, Washington, DC (United States)

2008-07-01T23:59:59.000Z

443

Device for imaging scenes with very large ranges of intensity  

SciTech Connect

A device for imaging scenes with a very large range of intensity having a pair of polarizers, a primary lens, an attenuating mask, and an imaging device optically connected along an optical axis. Preferably, a secondary lens, positioned between the attenuating mask and the imaging device is used to focus light on the imaging device. The angle between the first polarization direction and the second polarization direction is adjustable.

Deason, Vance Albert (Idaho Falls, ID)

2011-11-15T23:59:59.000Z

444

Hellsgate Winter Range : Wildlife Mitigation Project. Preliminary Environmental Assessment.  

DOE Green Energy (OSTI)

The Bonneville Power Administration proposes funding the Hellsgate Winter Range Wildlife Mitigation Project in cooperation with the Colville Convederated Tribes and Bureau of Indian Affairs. This Preliminary Environmental Assessment examines the potential environmental effects of acquiring and managing property for wildlife and wildlife habitat within a large project area. The Propose action is intended to meet the need for mitigation of wildlife and wild life habitat that was adversely affected by the construction of Grand Coulee and Chief Joseph Dams and their reservoirs.

United States. Bonneville Power Administration.

1995-01-01T23:59:59.000Z

445

Compact-range coordinate system established using a laser tracker.  

DOE Green Energy (OSTI)

Establishing a Cartesian coordinate reference system for an existing Compact Antenna Range using the parabolic reflector is presented. A SMX (Spatial Metrix Corporation) M/N 4000 laser-based coordinate measuring system established absolute coordinates for the facility. Electric field characteristics with positional movement correction are evaluated. Feed Horn relocation for alignment with the reflector axis is also described. Reference points are established for follow-on non-laser alignments utilizing a theodolite.

Gallegos, Floyd H.; Bryce, Edwin Anthony

2006-12-01T23:59:59.000Z

446

3Solar Energy and the Distance to Juno from the Sun As the Juno spacecraft travels to Jupiter,  

E-Print Network (OSTI)

at its maximum distance from the sun? Space Math http://spacemath.gsfc.nasa.gov #12;Answer Key 3 Problem, it gets farther from the sun every day. Because the spacecraft generates its electrical power using solar(r)? Problem 3 ­ For what angle, , will the spacecraft be able to generate only ¼ of the electrical power

447

An exploration on long-distance communications between left-behind children and their parents in China  

Science Conference Proceedings (OSTI)

In China, hundreds of millions of migrant workers have moved to cities or coastal regions for more or better-paid jobs and have left their children behind at their rural homes. Separated by thousands of kilometers, these "left-behind" children and their ... Keywords: left-behind children, long-distance communication, mobile mediated contact

Lu Pan; Feng Tian; Fei Lu; Xiaolong (Luke) Zhang; Ying Liu; Wenxin Feng; Guozhong Dai; Hongan Wang

2013-02-01T23:59:59.000Z

448

Investigation of Examples of E-education Environment for Scientific Collaboration and Distance Graduate Studies. Part 2  

Science Conference Proceedings (OSTI)

The aim is to investigate two emerging information technologies in graduate studies and scientific cooperation. Internet is the first technology. The open source is the second. They help each other in many ways. The joint influence of both is regarded ... Keywords: Bayesian approach, distance studies, global optimization, tuning heuristics

Jonas Mockus

2008-01-01T23:59:59.000Z

449

Fast affine invariant shape matching from 3d images based on the distance association map and the genetic algorithm  

Science Conference Proceedings (OSTI)

The decision on whether a pair of closed contours is derived from different views of the same object, a task commonly known as affine invariant matching, can be encapsulated as the search for the existence of an affine transform between them. Past research ... Keywords: affine invariant matching, chamfer distance transform

Peter Wai-Ming Tsang; W. C. Situ; Chi Sing Leung; Kai-Tat Ng

2012-11-01T23:59:59.000Z

450

Abstract--The distance protection scheme without communication is often applied to the backup protection of EHV  

E-Print Network (OSTI)

setting. Effects of parameters, such as substation grounding, cable layouts and transposition, are also protection of EHV cable lines. For a reliable operation of a ground distance relay, the ground loop impedance to the fault location. The discontinuity of the ground loop impedance at cross-bonding points may have an ill

Bak, Claus Leth

451

Measuring the relative efficiency of IC design firms using the directional distance function and a meta-frontier approach  

Science Conference Proceedings (OSTI)

This paper presents an alternative approach for evaluating the efficiency of integrated circuit (IC) design firms. In doing so, it accounts for differences between technology groups containing one or more design firms, and input and output factors to ... Keywords: Directional distance function, Group-frontier, IC design firm, Meta-frontier, Performance evaluations

Bo Hsiao; Ching-Chin Chern; Ming-Miin Yu

2012-11-01T23:59:59.000Z

452

Determination of the Acceptable Room Temperature Range for Local Cooling  

E-Print Network (OSTI)

Determination of the acceptable room temperature range is a key problem in satisfactory design of local cooling for energy savings. At the room temperatures ranging from neutral to warm, three sensitive body parts-the face, chest and back-were each exposed to local cooling airflow, where temperatures were 22, 25 and 28°C. Thirty randomly-selected male subjects, dressed in shorts, were exposed to each condition for 30 minutes. Data were collected on their local thermal sensations of each body part, overall thermal sensation, and overall thermal acceptability on voting scales at regular intervals during the exposure. Results show that the non-uniformity of thermal sensation is a key factor affecting thermal acceptability except for overall thermal sensation. A new assessment model for local cooling was proposed. The model shows that face cooling can improve thermal acceptability more than chest or back cooling, and the upper boundary of the acceptable range of room temperature can be shifted from 26°C to 30.5°C when face cooling is provided.

Zhang, Y.; Zhao, R.

2006-01-01T23:59:59.000Z

453

Tracking Honey Bees Using LIDAR (Light Detection and Ranging) Technology  

SciTech Connect

The Defense Advanced Research Projects Agency (DARPA) has recognized that biological and chemical toxins are a real and growing threat to troops, civilians, and the ecosystem. The Explosives Components Facility at Sandia National Laboratories (SNL) has been working with the University of Montana, the Southwest Research Institute, and other agencies to evaluate the feasibility of directing honeybees to specific targets, and for environmental sampling of biological and chemical ''agents of harm''. Recent work has focused on finding and locating buried landmines and unexploded ordnance (UXO). Tests have demonstrated that honeybees can be trained to efficiently and accurately locate explosive signatures in the environment. However, it is difficult to visually track the bees and determine precisely where the targets are located. Video equipment is not practical due to its limited resolution and range. In addition, it is often unsafe to install such equipment in a field. A technology is needed to provide investigators with the standoff capability to track bees and accurately map the location of the suspected targets. This report documents Light Detection and Ranging (LIDAR) tests that were performed by SNL. These tests have shown that a LIDAR system can be used to track honeybees. The LIDAR system can provide both the range and coordinates of the target so that the location of buried munitions can be accurately mapped for subsequent removal.

BENDER, SUSAN FAE ANN; RODACY, PHILIP J.; SCHMITT, RANDAL L.; HARGIS JR., PHILIP J.; JOHNSON, MARK S.; KLARKOWSKI, JAMES R.; MAGEE, GLEN I.; BENDER, GARY LEE

2003-01-01T23:59:59.000Z

454

Weapons of Mass Destruction Technology Evaluation and Training Range  

SciTech Connect

The Idaho National Laboratory (INL) has a long history for providing technology evaluation and training for military and other federal level Weapons of Mass Destruction (WMD) response agencies. Currently there are many federal organizations and commercial companies developing technologies related to detecting, assessing, mitigating and protecting against hazards associated with a WMD event. Unfortunately, very few locations exist within the United States where WMD response technologies are realistically field tested and evaluated using real chemical, biological, radiological, nuclear and explosive materials. This is particularly true with biological and radiological hazards. Related to this lack of adequate WMD, multi-hazard technology testing capability is the shortage of locations where WMD response teams can train using actual chemical, biological, and radiological material or highly realistic simulates. In response to these technology evaluation and training needs, the INL has assembled a consortium of subject matter experts from existing programs and identified dedicated resources for the purpose of establishing an all-hazards, WMD technology evaluation and training range. The author describes the challenges associated with creating the all-hazards WMD technology evaluation and training range and lists the technical, logistical and financial benefits of an all-hazards technology evaluation and training range. Current resources and capabilities for conducting all-hazard technology evaluation and training at the INL are identified. Existing technology evaluation and training programs at the INL related to radiological, biological and chemical hazards are highlighted, including successes and lessons learned. Finally, remaining gaps in WMD technology evaluation and training capabilities are identified along with recommendations for closing those gaps.

Kevin Larry Young

2009-05-01T23:59:59.000Z

455

Amplifier circuit operable over a wide temperature range  

DOE Patents (OSTI)

An amplifier circuit having stable performance characteristics over a wide temperature range from approximately 0.degree. C up to as high as approximately 500.degree. C, such as might be encountered in a geothermal borehole. The amplifier utilizes ceramic vacuum tubes connected in directly coupled differential amplifier pairs having a common power supply and a cathode follower output stage. In an alternate embodiment, for operation up to 500.degree. C, positive and negative power supplies are utilized to provide improved gain characteristics, and all electrical connections are made by welding. Resistor elements in this version of the invention are specially heat treated to improve their stability with temperature.

Kelly, Ronald D. (San Pedro, CA); Cannon, William L. (Encino, CA)

1979-01-01T23:59:59.000Z

456

Renewable Energy Opportunities at White Sands Missile Range, New Mexico  

DOE Green Energy (OSTI)

The document provides an overview of renewable resource potential at White Sands Missile Range (WSMR) based primarily upon analysis of secondary data sources supplemented with limited on-site evaluations. The effort was funded by the U.S. Army Installation Management Command (IMCOM) as follow-on to the 2005 DoD Renewable Energy Assessment. This effort focuses on grid-connected generation of electricity from renewable energy sources and also ground source heat pumps (GSHPs) for heating and cooling buildings, as directed by IMCOM.

Chvala, William D.; Solana, Amy E.; States, Jennifer C.; Warwick, William M.; Weimar, Mark R.; Dixon, Douglas R.

2008-09-01T23:59:59.000Z

457

INEL D&D Long-Range Plan  

Science Conference Proceedings (OSTI)

This Long-Range Plan presents the Decontamination and Decommissioning (D&D) Program planning status for facilities at the Idaho National Engineering Laboratory (INEL). The plan provides a general description of the D&D Program objectives, management criteria, and philosophy; discusses current activities; and documents the INEL D&D Program cost and schedule estimate projections for the next 15 years. appendices are included that provide INEL D&D project historical information and a comprehensive descriptive summary of each current surplus facility.

Buckland, R.J.; Kenoyer, D.J.; Preussner, D.H.

1993-10-01T23:59:59.000Z

458

Strength of intermediate-range forces coupling to isospin  

Science Conference Proceedings (OSTI)

An experimental search for new forces coupling to nuclear isospin with a range of {ge}3 m was conducted using a torsion balance driven in resonance by a set of masses configured to generate a nearly pure isospin source field. The strength of any such coupling {xi} in units of gravity per atomic mass unit is found to be bounded by {minus}2.3{times}10{sup {minus}4}{le}{xi}{le}+2.7{times}10{sup {minus}5}, where the positive sign represents an attractive force between like isospin charges.

Cowsik, R.; Krishnan, N.; Tandon, S.N.; Unnikrishnan, S. (Tata Institute of Fundamental Research, Bombay 400005, India (IN))

1990-01-22T23:59:59.000Z

459

Automatic ranging circuit for a digital panel meter  

DOE Patents (OSTI)

This invention relates to a range changing circuit that operates in conjunction with a digital panel meter of fixed sensitivity. The circuit decodes the output of the panel meter and uses that information to change the gain of an input amplifier to the panel meter in order to insure that the maximum number of significant figures is always displayed in the meter. The circuit monitors five conditions in the meter and responds to any of four combinations of these conditions by means of logic elements to carry out the function of the circuit.

Mueller, Theodore R. (Oak Ridge, TN); Ross, Harley H. (Oak Ridge, TN)

1976-01-01T23:59:59.000Z

460

Reconfigurable long-range phonon dynamics in optomechanical arrays  

E-Print Network (OSTI)

We investigate periodic optomechanical arrays as reconfigurable platforms for engineering the coupling between multiple mechanical and electromagnetic modes and for exploring many-body phonon dynamics. Exploiting structural resonances in the coupling between light fields and collective motional modes of the array, we show that tunable effective long-range interactions between mechanical modes can be achieved. This paves the way towards the implementation of controlled phononic walks and heat transfer on densely-connected graphs as well as the coherent transfer of excitations between distant elements of optomechanical arrays.

André Xuereb; Claudiu Genes; Guido Pupillo; Mauro Paternostro; Aurélien Dantan

2013-12-18T23:59:59.000Z

Note: This page contains sample records for the topic "tp4 range distance" 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

Measuring the differences in spatial ability between a face-to-face and a syncronous distance education undergraduate engineering graphics course.  

E-Print Network (OSTI)

?? Distance education is growing at colleges and universities throughout the United States. Engineering graphics laboratory courses are unique in their focus on skills and… (more)

Greenhalgh, Scott D.

2012-01-01T23:59:59.000Z

462

Plant Species Distributions under Present Conditions and Forecasted for Warmer Climates in an Arid Mountain Range  

Science Conference Proceedings (OSTI)

Complex environmental gradients in the White and Inyo Mountains in eastern California produce striking variations in vegetation assemblages over short distances. Vegetation composition is dominated by elevational gradients of temperature and ...

Christopher M. Van de Ven; S. B. Weiss; W. G. Ernst

2007-07-01T23:59:59.000Z

463

Blue Creek Winter Range : Wildlife Mitigation Project : Final Environmental Assessment.  

DOE Green Energy (OSTI)

Bonneville Power Administration (BPA) proposes to fund that portion of the Washington Wildlife Agreement pertaining to the Blue Creek Winter Range Wildlife Mitigation Project (Project) in a cooperative effort with the Spokane Tribe, Upper Columbia United Tribes, and the Bureau of Indian Affairs (BIA). If fully implemented, the proposed action would allow the sponsors to protect and enhance 2,631 habitat units of big game winter range and riparian shrub habitat on 2,185 hectares (5,400 acres) of Spokane Tribal trust lands, and to conduct long term wildlife management activities within the Spokane Indian Reservation project area. This Final Environmental Assessment (EA) examines the potential environmental effects of securing land and conducting wildlife habitat enhancement and long term management activities within the boundaries of the Spokane Indian Reservation. Four proposed activities (habitat protection, habitat enhancement, operation and maintenance, and monitoring and evaluation) are analyzed. The proposed action is intended to meet the need for mitigation of wildlife and wildlife habitat adversely affected by the construction of Grand Coulee Dam and its reservoir.

United States. Bonneville Power Administration; United States. Bureau of Indian Affairs; Spokane Tribe of the Spokane Reservation, Washington

1994-11-01T23:59:59.000Z

464

Model Spectra of Rotation Powered Pulsars in the INTEGRAL Range  

E-Print Network (OSTI)

The energy range of IBIS is a promising ground for testing mutual relations of distinct components expected in the spectra of high-energy radiation from rotation powered pulsars. According to some polar-cap models two such components - due to curvature and synchrotron emission - may contribute comparable amounts of power between 15 keV and 10 MeV (Rudak & Dyks 1999). Zhang & Harding (2000) argued recently for the inclusion of a third possible component, due to inverse Compton scattering (ICS) of soft thermal photons on secondary $\\epm$-pairs. Here we present the results of Monte Carlo calculations of all three spectral components within a polar-cap model which allows for interactions of relativistic particles with the soft photons coming from the pulsar surface. For teragauss pulsars with the surface temperature of a few times 10^5 K the ICS component dominates the spectrum in the energy range below 10 MeV, and thus its presence increases the ratio of X-ray to gamma-ray luminosity (in comparison to the models ignoring the ICS on secondary $\\epm$-pairs) to a level observed in the Vela pulsar.

J. Dyks; B. Rudak; T. Bulik

2000-10-16T23:59:59.000Z

465

Hydrothermal opportunities and challenges in the basin and range  

DOE Green Energy (OSTI)

Geothermal development in the Basin and Range is a viable alternative for a portion of the new power. The existing fields in operation, short development lead times, ability to add incremental power generation, and the favorable environmental aspects all bode well for the industry. The Basin and Range province has a large inventory of both developed and undeveloped prospects. Currently, there are 434 MW{sub e} (gross) of installed generating capacity, which has been added at an average rate 67 MW{sub e} per year. Additional areas can be considered as maturing exploration prospects. An improved exploration and development approach would rely on a multi-disciplinary team of geologists, geochemists, geophysicists, and reservoir engineers. An exploration model would be developed by the team and continually reevaluated as exploration and development progressed. The role of the reservoir engineer would be the ongoing incorporation of geologic and engineering data into a reservoir model, providing a reality check on the exploration team. At each stage, the model is available to management for the latest estimates of reservoir deliverability, project economics, a reservoir management plan, and be used for well site selection. 15 refs., 3 figs.

Faulder, D.D.

1991-01-01T23:59:59.000Z

466

Long-Range Reconnaissance Imager on New Horizons  

E-Print Network (OSTI)

The LOng-Range Reconnaissance Imager (LORRI) is the high resolution imaging instrument for the New Horizons mission to Pluto, its giant satellite Charon, its small moons Nix and Hydra, and the Kuiper Belt, which is the vast region of icy bodies extending roughly from Neptune's orbit out to 50 astronomical units (AU). New Horizons launched on January 19, 2006 as the inaugural mission in NASA's New Frontiers program. LORRI is a narrow angle (field of view=0.29 deg), high resolution (4.95 microrad pixels), Ritchey-Chretien telescope with a 20.8 cm diameter primary mirror, a focal length of 263 cm, and a three lens field-flattening assembly. A 1024 x 1024 pixel (optically active region), thinned, backside-illuminated charge-coupled device (CCD) detector is used in the focal plane unit and is operated in frame transfer mode. LORRI provides panchromatic imaging over a bandpass that extends approximately from 350 nm to 850 nm. LORRI operates in an extreme thermal environment, situated inside the warm spacecraft with a large, open aperture viewing cold space. LORRI has a silicon carbide optical system, designed to maintain focus over the operating temperature range without a focus adjustment mechanism. Moreover, the spacecraft is thruster-stabilized without reaction wheels, placing stringent limits on the available exposure time and the optical throughput needed to satisfy the measurement requirements.

A. F. Cheng; H. A. Weaver; S. J. Conard; M. F. Morgan; O. Barnouin-Jha; J. D. Boldt; K. A. Cooper; E. H. Darlington; M. P. Grey; J. R. Hayes; K. E. Kosakowski; T. Magee; E. Rossano; D. Sampath; C. Schlemm; H. W. Taylor

2007-09-26T23:59:59.000Z

467

Optimizing and Diversifying the Electric Range of Plug-in Hybrid Electric Vehicles for U.S. Drivers  

Science Conference Proceedings (OSTI)

To provide useful information for automakers to design successful plug-in hybrid electric vehicle (PHEV) products and for energy and environmental analysts to understand the social impact of PHEVs, this paper addresses the question of how many of the U.S. consumers, if buying a PHEV, would prefer what electric ranges. The Market-oriented Optimal Range for PHEV (MOR-PHEV) model is developed to optimize the PHEV electric range for each of 36,664 sampled individuals representing U.S. new vehicle drivers. The optimization objective is the minimization of the sum of costs on battery, gasoline, electricity and refueling hassle. Assuming no battery subsidy, the empirical results suggest that: 1) the optimal PHEV electric range approximates two thirds of one s typical daily driving distance in the near term, defined as $450/kWh battery delivered price and $4/gallon gasoline price. 2) PHEVs are not ready to directly compete with HEVs at today s situation, defined by the $600/kWh battery delivered price and the $3-$4/gallon gasoline price, but can do so in the near term. 3) PHEV10s will be favored by the market over longer-range PHEVs in the near term, but longer-range PHEVs can dominate the PHEV market if gasoline prices reach as high as $5-$6 per gallon and/or battery delivered prices reach as low as $150-$300/kWh. 4) PHEVs can become much more attractive against HEVs in the near term if the electric range can be extended by only 10% with multiple charges per day, possible with improved charging infrastructure or adapted charging behavior. 5) the impact of a $100/kWh decrease in battery delivered prices on the competiveness of PHEVs against HEVs can be offset by about $1.25/gallon decrease in gasoline prices, or about 7/kWh increase in electricity prices. This also means that the impact of a $1/gallon decrease in gasoline prices can be offset by about 5/kWh decrease in electricity prices.

Lin, Zhenhong [ORNL

2012-01-01T23:59:59.000Z

468

On the short-distance structure of irrational non-commutative gauge theories  

E-Print Network (OSTI)

As shown by Hashimoto and Itzhaki in hep-th/9911057, the perturbative degrees of freedom of a non-commutative Yang-Mills theory (NCYM) on a torus are quasi-local only in a finite energy range. Outside that range one may resort to a Morita equivalent (or T-dual) description appropriate for that energy. In this note, we study NCYM on a non-commutative torus with an irrational deformation parameter $\\theta$. In that case, an infinite tower of dual descriptions is generically needed in order to describe the UV regime. We construct a hierarchy of dual descriptions in terms of the continued fraction approximations of $\\theta$. We encounter different descriptions depending on the level of the irrationality of $\\theta$ and the amount of non-locality tolerated. The behavior turns out to be isomorphic to that found for the phase structure of the four-dimensional Villain $Z_N$ lattice gauge theories, which we revisit as a warm-up. At large 't Hooft coupling, using the AdS/CFT correspondance, we find that there are domains of the radial coordinate $U$ where no T-dual description makes the derivative expansion converge. The radial direction obtains multifractal characteristics near the boundary of AdS.

S. Elitzur; B. Pioline; E. Rabinovici

2000-09-01T23:59:59.000Z

469

Design of frequency synthesizers for short range wireless transceivers  

E-Print Network (OSTI)

The rapid growth of the market for short-range wireless devices, with standards such as Bluetooth and Wireless LAN (IEEE 802.11) being the most important, has created a need for highly integrated transceivers that target drastic power and area reduction while providing a high level of integration. The radio section of the devices designed to establish communications using these standards is the limiting factor for the power reduction efforts. A key building block in a transceiver is the frequency synthesizer, since it operates at the highest frequency of the system and consumes a very large portion of the total power in the radio. This dissertation presents the basic theory and a design methodology of frequency synthesizers targeted for short-range wireless applications. Three different examples of synthesizers are presented. First a frequency synthesizer integrated in a Bluetooth receiver fabricated in 0.35?m CMOS technology. The receiver uses a low-IF architecture to downconvert the incoming Bluetooth signal to 2MHz. The second synthesizer is integrated within a dual-mode receiver capable of processing signals of the Bluetooth and Wireless LAN (IEEE 802.11b) standards. It is implemented in BiCMOS technology and operates the voltage controlled oscillator at twice the required frequency to generate quadrature signals through a divide-by-two circuit. A phase switching prescaler is featured in the synthesizer. A large capacitance is integrated on-chip using a capacitance multiplier circuit that provides a drastic area reduction while adding a negligible phase noise contribution. The third synthesizer is an extension of the second example. The operation range of the VCO is extended to cover a frequency band from 4.8GHz to 5.85GHz. By doing this, the synthesizer is capable of generating LO signals for Bluetooth and IEEE 802.11a, b and g standards. The quadrature output of the 5 - 6 GHz signal is generated through a first order RC - CR network with an automatic calibration loop. The loop uses a high frequency phase detector to measure the deviation from the 90° separation between the I and Q branches and implements an algorithm to minimize the phase errors between the I and Q branches and their differential counterparts.

Valero Lopez, Ari Yakov

2003-05-01T23:59:59.000Z

470

Changes in diurnal temperature range and national cereal yields  

SciTech Connect

Models of yield responses to temperature change have often considered only changes in average temperature (Tavg), with the implicit assumption that changes in the diurnal temperature range (DTR) can safely be ignored. The goal of this study was to evaluate this assumption using a combination of historical datasets and climate model projections. Data on national crop yields for 1961-2002 in the 10 leading producers of wheat, rice, and maize were combined with datasets on climate and crop locations to evaluate the empirical relationships between Tavg, DTR, and crop yields. In several rice and maize growing regions, including the two major nations for each crop, there was a clear negative response of yields to increased DTR. This finding reflects a nonlinear response of yields to temperature, which likely results from greater water and heat stress during hot days. In many other cases, the effects of DTR were not statistically significant, in part because correlations of DTR with other climate variables and the relatively short length of the time series resulted in wide confidence intervals for the estimates. To evaluate whether future changes in DTR are relevant to crop impact assessments, yield responses to projected changes in Tavg and DTR by 2046-2065 from 11 climate models were estimated. The mean climate model projections indicated an increase in DTR in most seasons and locations where wheat is grown, mixed projections for maize, and a general decrease in DTR for rice. These mean projections were associated with wide ranges that included zero in nearly all cases. The estimated impacts of DTR changes on yields were generally small (<5% change in yields) relative to the consistently negative impact of projected warming of Tavg. However, DTR changes did significantly affect yield responses in several cases, such as in reducing US maize yields and increasing India rice yields. Because DTR projections tend to be positively correlated with Tavg, estimates of yields under extreme warming scenarios were particularly affected by including DTR (up to 10%). Finally, based on the relatively poor performance of climate models in reproducing the magnitude of past DTR trends, it is possible that future DTR changes and associated yield responses will exceed the ranges considered here.

Lobell, D

2007-04-26T23:59:59.000Z

471

DIRECT Distances to Nearby Galaxies Using Detached Eclipsing Binaries and Cepheids. VI. Variables in the Central Part of M33  

E-Print Network (OSTI)

The DIRECT project aims to determine direct distances to two important galaxies in the cosmological distance ladder - M31 and M33 - using detached eclipsing binaries (DEBs) and Cepheids. We present the results of the first large-scale CCD-based search for variables in M33. We have observed two fields located in the central region of M33 for a total of 95 nights on the F. L. Whipple Observatory 1.2-m telescope and 36 nights on the Michigan-Dartmouth-MIT 1.3-m telescope. We have found a total of 544 variables, including 251 Cepheids and 47 eclipsing binaries. The catalog of variables is available online, along with finding charts and BVI light curve data (consisting of 8.2x10^4 individual measurements). The complete set of CCD frames is available upon request.

Macri, L M; Sasselov, D D; Krockenberger, M; Kaluzny, J

2001-01-01T23:59:59.000Z

472

1998 Annual Site Environmental Report Tonopah Test Range, Nevada  

SciTech Connect

Sandia National Laboratories (SNL) operates the Tonopah Test Range (TTR) for the Department of Energy (DOE) Weapons Ordnance Program. This annual report (calendar year 1998) summarizes the compliance status to environmental regulations applicable at the site including those statutes that govern air and water quality, waste management cleanup of contaminated areas, control of toxic substances, and adherence to requirements as related to the National Environmental Policy Act (NEPA). In compliance with DOE orders, SNL also conducts environmental surveillance for radiological and nonradiological contaminants. SNL's responsibility for environmental surveillance at TTR extends only to those areas where SNL activities are carried out. Annual radiological and nonradiological routine releases and unplanned releases (occurrences) are also summarized. This report has been prepared in accordance with DOE Order 5400.1, General Environmental Protection Program (DOE 1990a).

Duncan, D.K.; Fink, C.H.; Sanchez, R.V.

1999-09-01T23:59:59.000Z

473

Range Fuels Inc formerly Kergy Inc | Open Energy Information  

Open Energy Info (EERE)

Inc formerly Kergy Inc Inc formerly Kergy Inc Jump to: navigation, search Name Range Fuels Inc (formerly Kergy Inc) Place Broomfield, Colorado Zip 80021 Sector Biofuels Product A Khosla Ventures-backed company that is developing gasification technology for the production of cellulosic biofuels. Coordinates 39.920863°, -105.070582° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.920863,"lon":-105.070582,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

474

1997 annual site environmental report, Tonopah Test Range, Nevada  

SciTech Connect

Sandia National Laboratories (SNL) operates the Tonopah Test Range for the Department of Energy's (DOE) Weapons Ordnance Program. Thes annual report (calendar year 1997) summarizes the compliance status to environmental regulations applicable at the site including those statutes that govern air and water quality, waste management, cleanup of contaminated areas, control of toxic substances, and adherence to requirements as related to the National Environmental Policy Act. In compliance with DOE orders, SNL also conducts environmental surveillance for radiological and nonradiological contaminants. SNL's responsibility for environmental surveillance extends only to those activities performed by SNL or under its direction. Annual radiological and nonradiological routine releases and unplanned releases (occurrences) are also summarized. This report has been prepared as required by DOE Order 5400.1, General Environmental Protection Program.

Culp, Todd; Duncan, Dianne (ed.); Forston, William; Sanchez, Rebecca (ed.)

1998-08-01T23:59:59.000Z

475

1989 environmental monitoring report, Tonopah Test Range, Tonopah, Nevada  

Science Conference Proceedings (OSTI)

This report summarizes the environmental surveillance activities conducted by Environmental Protection Agency (EPA) and Reynolds Electrical and Engineering Company (REECo) for the Tonopah Test Range (TTR) operated by Sandia National Laboratories (SNL). Other environmental compliance programs such as National Environmental Policy Act of 1969 (NEPA), environmental permits, environmental restoration, and waste management programs are also included. The maximum offsite dose impact from 1989 operations was 8.7 {times} 10{sup {minus}4} mrem as a result of an unusual occurrence. The population received a collective dose of 1.2 {times} 10{sup {minus}5} person-rem from this incidence, while the same populations received 4.94 person-rem from natural background radiation. The 1989 SNL, TTR operations had no adverse impact on the general public or the environment. 18 refs., 2 figs., 14 tabs.

Hwang, S.; Phelan, J.; Wolff, T.; Yeager, G.; Dionne, D.; West, G.

1990-05-01T23:59:59.000Z

476

Solid oxide fuel cell operable over wide temperature range  

DOE Patents (OSTI)

Solid oxide fuel cells having improved low-temperature operation are disclosed. In one embodiment, an interfacial layer of terbia-stabilized zirconia is located between the air electrode and electrolyte of the solid oxide fuel cell. The interfacial layer provides a barrier which controls interaction between the air electrode and electrolyte. The interfacial layer also reduces polarization loss through the reduction of the air electrode/electrolyte interfacial electrical resistance. In another embodiment, the solid oxide fuel cell comprises a scandia-stabilized zirconia electrolyte having high electrical conductivity. The scandia-stabilized zirconia electrolyte may be provided as a very thin layer in order to reduce resistance. The scandia-stabilized electrolyte is preferably used in combination with the terbia-stabilized interfacial layer. The solid oxide fuel cells are operable over wider temperature ranges and wider temperature gradients in comparison with conventional fuel cells.

Baozhen, Li (Essex Junction, VT); Ruka, Roswell J. (Pittsburgh, PA); Singhal, Subhash C. (Murrysville, PA)

2001-01-01T23:59:59.000Z

477

Constant power speed range extension of surface mounted PM motors  

DOE Patents (OSTI)

A circuit and method for controlling a rotating machine (11) in the constant horsepower range above base speed uses an inverter (15) having SCR's (T1-T6) connected in series with the primary commutation switches (Q1-Q6) to control turn off of the primary commutation switches and to protect the primary commutation switches from faults. The primary commutation switches (Q1-Q6) are controlled by a controller (14), to fire in advance or after a time when the back emf equals the applied voltage, and then to turn off after a precise dwell time, such that suitable power is developed at speeds up to at least six times base speed.

Lawler, Jack Steward (Knoxville, TN); Bailey, John Milton (Knoxville, TN)

2001-01-01T23:59:59.000Z

478

Lunar Laser Ranging Contributions to Relativity and Geodesy  

E-Print Network (OSTI)

Lunar laser ranging (LLR) is used to conduct high-precision measurements of ranges between an observatory on Earth and a laser retro-reflector on the lunar surface. Over the years, LLR has benefited from a number of improvements both in observing technology and data modeling, which led to the current accuracy of post-fit residuals of ~2 cm. Today LLR is a primary technique to study the dynamics of the Earth-Moon system and is especially important for gravitational physics, geodesy and studies of the lunar interior. LLR is used to perform high-accuracy tests of the equivalence principle, to search for a time-variation in the gravitational constant, and to test predictions of various alternative theories of gravity. On the geodesy front, LLR contributes to the determination of Earth orientation parameters, such as nutation, precession (including relativistic precession), polar motion, and UT1, i.e. especially to the long-term variation of these effects. LLR contributes to the realization of both the terrestrial and selenocentric reference frames. The realization of a dynamically defined inertial reference frame, in contrast to the kinematically realized frame of VLBI, offers new possibilities for mutual cross-checking and confirmation. Finally, LLR also investigates the processes related to the Moon's interior dynamics. Here, we review the LLR technique focusing on its impact on relativity and give an outlook to further applications, e.g. in geodesy. We present results of our dedicated studies to investigate the sensitivity of LLR data with respect to the relativistic quantities. We discuss the current observational situation and the level of LLR modeling implemented to date. We also address improvements needed to fully utilize the scientific potential of LLR.

Juergen Mueller; James G. Williams; Slava G. Turyshev

2005-09-28T23:59:59.000Z

479

Design and evaluation of a new MAC protocol for long-distance 802.11 mesh networks  

Science Conference Proceedings (OSTI)

802.11 has been used well beyond its original intended use of WLANs. Of particular interest to us in this paper is its use in long-distance mesh networks being designed/used for low-cost rural connectivity. We describe in detail a new MAC protocol, called ... Keywords: 802.11 mesh networks, MAC design, network topology design, signal-to-interference ratio

Bhaskaran Raman; Kameswari Chebrolu

2005-08-01T23:59:59.000Z

480

Adiabatic quantum simulation with a segmented ion trap: Application to long-distance entanglement in quantum spin systems  

E-Print Network (OSTI)

We discuss systems of ions in segmented linear Paul traps for the quantum simulation of spin models which exhibit long-distance entanglement (LDE) in the ground state. The axial potential can be tailored to create different coupling patterns suitable to create LDE in quantum spin chains. Microwave pulses are used to implement various kinds of spin-spin interaction Hamiltonians, which can be varied adiabatically thereby realizing the adiabatic preparation of the ground states of quantum spin Hamiltonians exhibiting LDE.

S. Zippilli; M. Johanning; S. M. Giampaolo; Ch. Wunderlich; F. Illuminati

2013-03-31T23:59:59.000Z

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481

Ultra-stable long distance optical frequency distribution using the Internet fiber network  

E-Print Network (OSTI)

We report an optical link of 540 km for ultrastable frequency distribution over the Internet fiber network. The stable frequency optical signal is processed enabling uninterrupted propagation on both directions. The robustness and the performance of the link are enhanced by a cost effective fully automated optoelectronic station. This device is able to coherently regenerate the return optical signal with a heterodyne optical phase locking of a low noise laser diode. Moreover the incoming signal polarization variation are tracked and processed in order to maintain beat note amplitudes within the operation range. Stable fibered optical interferometer enables optical detection of the link round trip phase signal. The phase-noise compensated link shows a fractional frequency instability in 10 Hz bandwidth of 5\\times10-15 at one second measurement time and 2\\times10-19 at 30 000 s. This work is a significant step towards a sustainable wide area ultrastable optical frequency distribution and comparison network.

Lopez, Olivier; Chanteau, Bruno; Chardonnet, Christian; Amy-Klein, Anne; Santarelli, Georgio

2012-01-01T23:59:59.000Z

482

Ultra-stable long distance optical frequency distribution using the Internet fiber network  

E-Print Network (OSTI)

We report an optical link of 540 km for ultrastable frequency distribution over the Internet fiber network. The stable frequency optical signal is processed enabling uninterrupted propagation on both directions. The robustness and the performance of the link are enhanced by a cost effective fully automated optoelectronic station. This device is able to coherently regenerate the return optical signal with a heterodyne optical phase locking of a low noise laser diode. Moreover the incoming signal polarization variation are tracked and processed in order to maintain beat note amplitudes within the operation range. Stable fibered optical interferometer enables optical detection of the link round trip phase signal. The phase-noise compensated link shows a fractional frequency instability in 10 Hz bandwidth of 5x10-15 at one second measurement time and 2x10-19 at 30 000 s. This work is a significant step towards a sustainable wide area ultrastable optical frequency distribution and comparison network.

Olivier Lopez; Adil Haboucha; Bruno Chanteau; Christian Chardonnet; Anne Amy-Klein; Giorgio Santarelli

2012-06-25T23:59:59.000Z

483

A generalized family of fixed-radius distribution-based distance measures for content-based fMRI image retrieval  

Science Conference Proceedings (OSTI)

We present a family of distance measures for comparing activation patterns captured in fMRI images. We model an fMRI image as a spatial object with varying density, and measure the distance between two fMRI images usin