Sample records for technique field mapping

  1. Mapping Diffuse Seismicity Using Empirical Matched Field Processing Techniques

    SciTech Connect (OSTI)

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

    2011-01-21T23:59:59.000Z

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

  2. Field Mapping At San Francisco Volcanic Field Area (Warpinski...

    Open Energy Info (EERE)

    Field Area Exploration Technique Field Mapping Activity Date Usefulness not indicated DOE-funding Unknown Notes Northern Arizona University has re-assessed the existing exploration...

  3. Field Mapping At Walker-Lane Transitional Zone Region (Shevenell...

    Open Energy Info (EERE)

    Region (Shevenell, Et Al., 2008) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness...

  4. Field Mapping At Walker-Lane Transitional Zone Region (Blewitt...

    Open Energy Info (EERE)

    Zone Region (Blewitt Et Al, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness...

  5. Field Mapping At Central Nevada Seismic Zone Region (Blewitt...

    Open Energy Info (EERE)

    Region (Blewitt, Et Al., 2003) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness...

  6. Field Mapping At Central Nevada Seismic Zone Region (Shevenell...

    Open Energy Info (EERE)

    Shevenell, Et Al., 2008) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness could be...

  7. An observational test of magnetospheric magnetic field mapping

    SciTech Connect (OSTI)

    Weiss, L.A.; Thomsen, M.F.; Reeves, G.D.; Hones, E.W.; McComas, D.J.

    1994-07-01T23:59:59.000Z

    The distortion of the geomagnetic field is a key signature of the response of the magnetosphere to the solar wind input. A number of empirical models have been devised to estimate the magnetic field direction and magnitude at any point within the magnetosphere under a variety of conditions. We describe a technique whereby the field-line mapping predicted by such models is tested by matching measurements of magnetospheric plasma energy spectra obtained by Los Alamos instruments at geosynchronous orbit with spectra obtained by instruments on the polar-orbiting DMSP satellites (at an altitude of about 800 km) at times when the two satellites are in approximate magnetic conjugacy. With up to three geosynchronous satellites and as many as four DMSP satellites in operation at any given time, there are a very large number of such two-satellite conjunctions, allowing the model mappings to be tested under a wide range of local times and geomagnetic activity. Preliminary results from the application of this technique are presented for one week of data from March, 1991.

  8. Digital Geologic Field Mapping Using Arcpad, In: Digital Mapping Techniques

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 No revision hasda62829c05bGabbs TypeWinds Wind Farm8)DifwindV'02-

  9. Fast field mapping device for cyclotron magnets

    SciTech Connect (OSTI)

    Berkes, B.; Brombach, D.; Szavits, O.

    1981-09-01T23:59:59.000Z

    The Swiss S.I.N. ring injector cyclotron has four sector magnets. For fast and accurate magnetic field measurements a new type of measuring system has been developed. The magnetic field of the sector magnets is measured in polar coordinates. The standard field map covers a range in radial direction from 240 to 3800 mm and in azimuthal direction from -47 deg. to +47 deg. in steps of 20 mm and 1/4 deg., respectively. Two Hall probes are mounted on a carriage which follows a meandric track. The data are taken in the ''flying'' mode, i.e. two fast DVM's read the values while the carriage is moving at an average speed of approx. 25 cm/sec. The measuring procedure is controlled on line by a small computer and is carried through automatically within roughly 2/one-half/ hr. The process control software contains diagnostic routines for surveying the operation as well as for a smoothing check of the measured data which are written on a magnetic tape at the end of each radial track. 3 refs.

  10. Field Mapping At Blue Mountain Geothermal Area (Fairbank Engineering...

    Open Energy Info (EERE)

    Engineering Ltd, 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Blue Mountain Geothermal Area (Fairbank Engineering Ltd,...

  11. Field Mapping At Long Valley Caldera Geothermal Area (Sorey ...

    Open Energy Info (EERE)

    Sorey & Farrar, 1998) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Long Valley Caldera Geothermal Area (Sorey & Farrar, 1998)...

  12. Visual Field Maps, Population Receptive Field Sizes, and Visual Field Coverage in the Human MT Complex

    E-Print Network [OSTI]

    Dumoulin, Serge O.

    of processing in human motion-selective cortex. I N T R O D U C T I O N Neuroimaging experiments localize human by additional experiments. Defining human MT based on stimulus selectivity means that the identificationVisual Field Maps, Population Receptive Field Sizes, and Visual Field Coverage in the Human MT

  13. Energy Efficient Map Interpolation for Sensor Fields Using Kriging

    E-Print Network [OSTI]

    Huang, Yan

    Yang, and Xinrong Li [brh,huangyan,jy0074,xinrong]@unt.edu University of North Texas #12;Overview the sensor field, e.g.: Temperature Hydraulic head Soil moisture Ocean current velocity Energy Efficient Map Precipitation Energy Efficient Map Interpolation for Sensor Fields Using Kriging ­ p.4/5 #12;Overview Motivation

  14. The Field Museum Education Department Presents Educator Guide & Walking Map

    E-Print Network [OSTI]

    Patterson, Bruce D.

    The Field Museum Education Department Presents Educator Guide & Walking Map The Field Museum before and after your visit to the Museum. Darwin is organized by the American Museum of Natural History, New York, in collaboration with The Field Museum, Chicago; the Museum of Science, Boston; the Royal

  15. Mapping the magnetic field vector in a fountain clock

    SciTech Connect (OSTI)

    Gertsvolf, Marina; Marmet, Louis [National Research Council of Canada, Ottawa, Ontario K1A 0R6 (Canada)

    2011-12-15T23:59:59.000Z

    We show how the mapping of the magnetic field vector components can be achieved in a fountain clock by measuring the Larmor transition frequency in atoms that are used as a spatial probe. We control two vector components of the magnetic field and apply audio frequency magnetic pulses to localize and measure the field vector through Zeeman spectroscopy.

  16. Nanoscale magnetic field mapping with a single spin scanning probe magnetometer

    SciTech Connect (OSTI)

    Rondin, L.; Tetienne, J.-P.; Spinicelli, P.; Roch, J.-F.; Jacques, V. [Laboratoire de Photonique Quantique et Moleculaire, Ecole Normale Superieure de Cachan and CNRS UMR 8537, 94235 Cachan Cedex (France); Dal Savio, C.; Karrai, K. [Attocube systems AG, Koeniginstrasse 11A RGB, Munich 80539 (Germany); Dantelle, G. [Laboratoire de Physique de la Matiere Condensee, Ecole Polytechnique and CNRS UMR 7643, 91128 Palaiseau (France); Thiaville, A.; Rohart, S. [Laboratoire de Physique des Solides, Universite Paris-Sud and CNRS UMR 8502, 91405 Orsay (France)

    2012-04-09T23:59:59.000Z

    We demonstrate quantitative magnetic field mapping with nanoscale resolution, by applying a lock-in technique on the electron spin resonance frequency of a single nitrogen-vacancy defect placed at the apex of an atomic force microscope tip. In addition, we report an all-optical magnetic imaging technique which is sensitive to large off-axis magnetic fields, thus extending the operation range of diamond-based magnetometry. Both techniques are illustrated by using a magnetic hard disk as a test sample. Owing to the non-perturbing and quantitative nature of the magnetic probe, this work should open up numerous perspectives in nanomagnetism and spintronics.

  17. Investigating High Field Gravity using Astrophysical Techniques

    SciTech Connect (OSTI)

    Bloom, Elliott D.; /SLAC

    2008-02-01T23:59:59.000Z

    The purpose of these lectures is to introduce particle physicists to astrophysical techniques. These techniques can help us understand certain phenomena important to particle physics that are currently impossible to address using standard particle physics experimental techniques. As the subject matter is vast, compromises are necessary in order to convey the central ideas to the reader. Many general references are included for those who want to learn more. The paragraphs below elaborate on the structure of these lectures. I hope this discussion will clarify my motivation and make the lectures easier to follow. The lectures begin with a brief review of more theoretical ideas. First, elements of general relativity are reviewed, concentrating on those aspects that are needed to understand compact stellar objects (white dwarf stars, neutron stars, and black holes). I then review the equations of state of these objects, concentrating on the simplest standard models from astrophysics. After these mathematical preliminaries, Sec. 2(c) discusses 'The End State of Stars'. Most of this section also uses the simplest standard models. However, as these lectures are for particle physicists, I also discuss some of the more recent approaches to the equation of state of very dense compact objects. These particle-physics-motivated equations of state can dramatically change how we view the formation of black holes. Section 3 focuses on the properties of the objects that we want to characterize and measure. X-ray binary systems and Active Galactic Nuclei (AGN) are stressed because the lectures center on understanding very dense stellar objects, black hole candidates (BHCs), and their accompanying high gravitational fields. The use of x-ray timing and gamma-ray experiments is also introduced in this section. Sections 4 and 5 review information from x-ray and gamma-ray experiments. These sections also discuss the current state of the art in x-ray and gamma-ray satellite experiments and plans for future experiments.

  18. Reservoir Fracture Mapping using Microearthquakes: Austin Chalk, Giddings Field, TX and 76 Field, Clinton Co., KY.

    E-Print Network [OSTI]

    SPE 36651 Reservoir Fracture Mapping using Microearthquakes: Austin Chalk, Giddings Field, TX and enhanced recovery, production operations in fracture- dominated oil and gas reservoirs. Borehole geophones to study reservoir fracture systems. Methods currently applied to study fracture systems include tilt

  19. Efficient SIMD technique with parallel Max-Log-MAP Algorithm for Turbo Decoders

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Efficient SIMD technique with parallel Max-Log-MAP Algorithm for Turbo Decoders David Gnaedig Turbo on a DSP a parallel Max-Log-MAP algorithm for turbo decoders. It consists in using SIMD instructions by the use of an adapted two-dimensional turbo code and its parallel interleaver structure. After a brief

  20. Category:Field Techniques | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, click here. Category:Conceptual Model Add.png AddTechniquesTechniques page? For

  1. Technique to prepare metallic multi-point field emission sources

    SciTech Connect (OSTI)

    Okuyama, F.

    1980-08-01T23:59:59.000Z

    A technique is proposed which enables one to fabricate multi-point field emission sources of bakeable structure. The technique is based on the cathodic growth of metallic needle crystal from metal carbonyl vapors and has so far been confirmed to provide emission sources of W, Mo, and Mo/sub 2/C. The field emission sources prepared by this technique are highly resistive to thermal treatment and actually yield field ions possessing satisfactory intensities when used as the ion sources of a field ion mass spectrometer. It is believed that the application of these field emission sources is not restricted to mass spectrometry but can be extended to other ion and electron optical systems. The technique may thus open new areas in field emission technology.

  2. Old geologists, old fields, new ideas, new techniques - New reserves

    SciTech Connect (OSTI)

    Borg, W.M.; Wilson, J.R.

    1991-08-01T23:59:59.000Z

    The recent discovery of Viola production on the flank of the Lucien field has focused attention to the presence of fractured reservoirs on the flank of old producing structures along the Nemaha Ridge and elsewhere in Oklahoma. Recognizing that many of these old fields have not been published in any detail, the authors have begun a series of field studies, concentrating on fields that were discovered before mid-1950. In order to do this job as quickly and economically as possible, computer technology is being employed. Data bases have been purchased from services such as GDS. Computers have been employed to create a series of structure and isopach maps. The use of computers has made it possible to quickly develop second-derivative structure maps which indicate those areas most prone to fracturing. The authors then suggest that the development of these fractured reservoirs could best be accomplished by horizontal drilling. For those old geologists who are intimidated by computers or don't care to become computer experts, the availability of published databases and computer mapping services lets the geologist combine his experience and knowledge with new technology in the development of prospects and new reserves. A series of field studies will be presented as time permits.

  3. Feasibility of a borehole VHF radar technique for fracture mapping

    SciTech Connect (OSTI)

    Chang, H.T.

    1984-01-01T23:59:59.000Z

    Experiments were conducted to establish the feasibility of a downhole high-frequency electromagnetic technique for location of fractures in the vicinity of boreholes. An existing flame-cut slot in granite was filled with salt water to simulate a brine-filled fracture. A transmitter consisting of a phased dual-dipole array arranged to provide a directional signal toward the fracture was installed in a borehole opposite the fracture. A receiver operated at 30 to 300 MHz was also located in the same borehole. The radar returns from the simulated fracture were detectable in boreholes located at distances of up to 12 meters from the fracture. These results indicate for the first time the feasibility of a downhole VHF radar for use in a single borehole for detection of fractures located away from the borehole.

  4. FieldJournal : a mobile data collection and mapping applications for the pocketPCs

    E-Print Network [OSTI]

    Lai, Janet W

    2004-01-01T23:59:59.000Z

    FieldJournal is a mobile data collection and mapping application designed for the PocketPC brand of PDAs. It was built as an investigation into combining the data collection process and the mapping process of community ...

  5. Spectral Mapping of Protein Torsion Angles National High Magnetic Field Laboratory

    E-Print Network [OSTI]

    Weston, Ken

    Spectral Mapping of Protein Torsion Angles National High Magnetic Field Laboratory NMR Spectroscopy spectra. #12;Spectral Mapping of Protein Torsion Angles National High Magnetic Field Laboratory NMR, in recording signals that are dependent on the orientation of the atoms with respect to the magnetic field, we

  6. Development of Improved Oil Field Waste Injection Disposal Techniques

    SciTech Connect (OSTI)

    Terralog Technologies USA Inc.

    2001-12-17T23:59:59.000Z

    The goals of this DOE sponsored project are to: (1) assemble and analyze a comprehensive database of past waste injection operations; (2) develop improved diagnostic techniques for monitoring fracture growth and formation changes; (3) develop operating guidelines to optimize daily operations and ultimate storage capacity of the target formation; and (4) to test these improved models and guidelines in the field.

  7. Development of Improved Oil Field Waste Injection Disposal Techniques

    SciTech Connect (OSTI)

    Terralog Technologies

    2002-11-25T23:59:59.000Z

    The goals of this project have was to: (1) assemble and analyze a comprehensive database of past waste injection operations; (2) develop improved diagnostic techniques for monitoring fracture growth and formation changes; (3) develop operating guidelines to optimize daily operations and ultimate storage capacity of the target formation; and (4) to apply these improved models and guidelines in the field.

  8. Three-dimensional mapping of optical near field of a nanoscale bowtie antenna

    E-Print Network [OSTI]

    Xu, Xianfan

    Three-dimensional mapping of optical near field of a nanoscale bowtie antenna Rui Guo*, Edward C. This paper describes an experimental three-dimensional optical near-field mapping of a bowtie nano. The experimental results also demonstrate the polarization dependence of the transmission through the bowtie

  9. Field Mapping At Valles Caldera - Redondo Geothermal Area (Bailey...

    Open Energy Info (EERE)

    based on surface mapping of the caldera. References Roy A. Bailey, Robert Leland Smith, Clarence Samuel Ross (1969) Stratigraphic Nomenclature of Volcanic Rocks in the Jemez...

  10. Field Mapping At Valles Caldera - Sulphur Springs Geothermal...

    Open Energy Info (EERE)

    based on surface mapping of the caldera. References Roy A. Bailey, Robert Leland Smith, Clarence Samuel Ross (1969) Stratigraphic Nomenclature of Volcanic Rocks in the Jemez...

  11. Mapping Diffuse Seismicity for Geothermal Reservoir Management with Matched Field Processing

    Broader source: Energy.gov [DOE]

    Project objective: to detect and locate more microearthquakes observed during EGS operations using the matched field processing (MFP) technique.

  12. A blurred interface formulation of The Reference Map Technique for Fluid-Solid Interactions and Fluid-Solid-Solid Interactions

    E-Print Network [OSTI]

    Valkov, Boris Ivanov

    2014-01-01T23:59:59.000Z

    In this work we present a blurred interface method for Fluid-Solid Interactions (FSI) and multiple solids immersed in a fluid or FSSI (Fluid-Solid-Solid Interactions) based on the reference map technique as presented by ...

  13. Field Theory Techniques on Spin Systems Physics 230A, Spring 2007, Hitoshi Murayama

    E-Print Network [OSTI]

    Murayama, Hitoshi

    Field Theory Techniques on Spin Systems Physics 230A, Spring 2007, Hitoshi Murayama 1 Introduction to understand using the quantum field theory techniques. In order to use techniques in continuum field theory would like to do now is to rewrite this Hamiltonian in terms of continuum field theory. The first step

  14. Phased Array Ultrasonic Sound Field Mapping in Cast Austenitic Stainless Steel

    SciTech Connect (OSTI)

    Crawford, Susan L.; Prowant, Matthew S.; Cinson, Anthony D.; Larche, Michael R.; Diaz, Aaron A.; Anderson, Michael T.

    2014-05-31T23:59:59.000Z

    This study maps the phased array-generated acoustic sound fields through three types of CASS microstructure in four specimens to quantitatively assess the beam formation effectiveness in these materials.

  15. New techniques for the scientific visualization of three-dimensional multi-variate and vector fields

    SciTech Connect (OSTI)

    Crawfis, R.A.

    1995-10-01T23:59:59.000Z

    Volume rendering allows us to represent a density cloud with ideal properties (single scattering, no self-shadowing, etc.). Scientific visualization utilizes this technique by mapping an abstract variable or property in a computer simulation to a synthetic density cloud. This thesis extends volume rendering from its limitation of isotropic density clouds to anisotropic and/or noisy density clouds. Design aspects of these techniques are discussed that aid in the comprehension of scientific information. Anisotropic volume rendering is used to represent vector based quantities in scientific visualization. Velocity and vorticity in a fluid flow, electric and magnetic waves in an electromagnetic simulation, and blood flow within the body are examples of vector based information within a computer simulation or gathered from instrumentation. Understand these fields can be crucial to understanding the overall physics or physiology. Three techniques for representing three-dimensional vector fields are presented: Line Bundles, Textured Splats and Hair Splats. These techniques are aimed at providing a high-level (qualitative) overview of the flows, offering the user a substantial amount of information with a single image or animation. Non-homogenous volume rendering is used to represent multiple variables. Computer simulations can typically have over thirty variables, which describe properties whose understanding are useful to the scientist. Trying to understand each of these separately can be time consuming. Trying to understand any cause and effect relationships between different variables can be impossible. NoiseSplats is introduced to represent two or more properties in a single volume rendering of the data. This technique is also aimed at providing a qualitative overview of the flows.

  16. Effective Field Theory Techniques for Resummation in Jet Physics

    E-Print Network [OSTI]

    Dunn, Nicholas Daniel

    2012-01-01T23:59:59.000Z

    gamma in effective field theory. Phys. Rev. , D63:014006, [factorization from effective field theory. Phys. Rev. , D66:Stewart. An ef- fective field theory for collinear and soft

  17. BTA Magnet Field Map Archive and MAD Model

    SciTech Connect (OSTI)

    Glenn,J.W.

    2008-04-01T23:59:59.000Z

    This note publishes some and information that has resided in private files. The attached tables were provided by Joseph Skelly from his archives. They show magnetic field measurements versus excitation current for the Booster to AGS transfer line quadrupoles and dipoles based on field measurements [we believe] were done by the Magnet Division. Also given are Ed Blesser's fifth order fits of field versus current. The results are given in 'Tesla' or T-M/M. These tables are attached to provide an archive of this data. The MAD model of the BTA line does have the same values as shown in the attached fits so the transfer was correct. MAD uses as its 'gradient' for quads Tesla per meter normalized to rigidity [B-rho]. The model of the BTA line in use uses the T-M/M given in the tables divided by the length to give T M which is then normalized by Brho. Thus, the input to the model appears to be correct. The original model is also attached as part of a memo by Skelly describing it.

  18. Maps

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electronEnergy ManufacturingMapping theMappingMaps Sign

  19. Field Mapping At Mokapu Penninsula Area (Thomas, 1986) | Open Energy

    Open Energy Info (EERE)

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  20. Field Mapping At Truckhaven Area (Layman Energy Associates, 2008) | Open

    Open Energy Info (EERE)

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  1. Near-field Mapping System to Scan in Time Domain the Magnetic Emissions of Integrated Circuits

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    low amplitude and need to be amplified. This is achieved, as shown figure 1, by a low noise 63db of instructions. Application of this measurement system is given to an industrial chip designed with a 180nm CMOS a low cost near-field mapping system. This system scans automatically and dynamically, in the time

  2. MARKOV RANDOM FIELD IMAGE PRIOR MODELS FOR MAP RECONSTRUCTION OF MAGNETOENCEPHALOGRAM IMAGES

    E-Print Network [OSTI]

    Wirthlin, Michael J.

    MARKOV RANDOM FIELD IMAGE PRIOR MODELS FOR MAP RECONSTRUCTION OF MAGNETOENCEPHALOGRAM IMAGES Brian as a classical inverse imaging prob- lem, which for MEG is notoriously ill posed and requires strong sam- ple grid. The second model permits simulating an MRF over the non-uniform grid required

  3. Fielding the magnetically applied pressure-shear technique on the Z accelerator (completion report for MRT 4519).

    SciTech Connect (OSTI)

    Alexander, C. Scott; Haill, Thomas A.; Dalton, Devon Gardner; Rovang, Dean Curtis; Lamppa, Derek C.

    2013-09-01T23:59:59.000Z

    The recently developed Magnetically Applied Pressure-Shear (MAPS) experimental technique to measure material shear strength at high pressures on magneto-hydrodynamic (MHD) drive pulsed power platforms was fielded on August 16, 2013 on shot Z2544 utilizing hardware set A0283A. Several technical and engineering challenges were overcome in the process leading to the attempt to measure the dynamic strength of NNSA Ta at 50 GPa. The MAPS technique relies on the ability to apply an external magnetic field properly aligned and time correlated with the MHD pulse. The load design had to be modified to accommodate the external field coils and additional support was required to manage stresses from the pulsed magnets. Further, this represents the first time transverse velocity interferometry has been applied to diagnose a shot at Z. All subsystems performed well with only minor issues related to the new feed design which can be easily addressed by modifying the current pulse shape. Despite the success of each new component, the experiment failed to measure strength in the samples due to spallation failure, most likely in the diamond anvils. To address this issue, hydrocode simulations are being used to evaluate a modified design using LiF windows to minimize tension in the diamond and prevent spall. Another option to eliminate the diamond material from the experiment is also being investigated.

  4. Magnetic field mapping of the UCNTau magneto-gravitational trap: design study

    SciTech Connect (OSTI)

    Libersky, Matthew Murray [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2014-09-04T23:59:59.000Z

    The beta decay lifetime of the free neutron is an important input to the Standard Model of particle physics, but values measured using different methods have exhibited substantial disagreement. The UCN r experiment in development at Los Alamos National Laboratory (LANL) plans to explore better methods of measuring the neutron lifetime using ultracold neutrons (UCNs). In this experiment, UCNs are confined in a magneto-gravitational trap formed by a curved, asymmetric Halbach array placed inside a vacuum vessel and surrounded by holding field coils. If any defects present in the Halbach array are sufficient to reduce the local field near the surface below that needed to repel the desired energy level UCNs, loss by material interaction can occur at a rate similar to the loss by beta decay. A map of the magnetic field near the surface of the array is necessary to identify any such defects, but the array's curved geometry and placement in a vacuum vessel make conventional field mapping methods difficult. A system consisting of computer vision-based tracking and a rover holding a Hall probe has been designed to map the field near the surface of the array, and construction of an initial prototype has begun at LANL. The design of the system and initial results will be described here.

  5. Far-field mapping of the longitudinal magnetic and electric optical fields C. Ecoffey, T. Grosjean

    E-Print Network [OSTI]

    Boyer, Edmond

    in various domains such as particle accel- eration [1], laser cutting [2], lithography [3], far-field [4

  6. The symmetric quartic map for trajectories of magnetic field lines in elongated divertor tokamak plasmas

    SciTech Connect (OSTI)

    Jones, Morgin; Wadi, Hasina; Ali, Halima; Punjabi, Alkesh [Department of Mathematics, Hampton University, Hampton, Virginia 23668 (United States)

    2009-04-15T23:59:59.000Z

    The coordinates of the area-preserving map equations for integration of magnetic field line trajectories in divertor tokamaks can be any coordinates for which a transformation to ({psi}{sub t},{theta},{phi}) coordinates exists [A. Punjabi, H. Ali, T. Evans, and A. Boozer, Phys. Lett. A 364, 140 (2007)]. {psi}{sub t} is toroidal magnetic flux, {theta} is poloidal angle, and {phi} is toroidal angle. This freedom is exploited to construct the symmetric quartic map such that the only parameter that determines magnetic geometry is the elongation of the separatrix surface. The poloidal flux inside the separatrix, the safety factor as a function of normalized minor radius, and the magnetic perturbation from the symplectic discretization are all held constant, and only the elongation is {kappa} varied. The width of stochastic layer, the area, and the fractal dimension of the magnetic footprint and the average radial diffusion coefficient of magnetic field lines from the stochastic layer; and how these quantities scale with {kappa} is calculated. The symmetric quartic map gives the correct scalings which are consistent with the scalings of coordinates with {kappa}. The effects of m=1, n={+-}1 internal perturbation with the amplitude that is expected to occur in tokamaks are calculated by adding a term [H. Ali, A. Punjabi, A. H. Boozer, and T. Evans, Phys. Plasmas 11, 1908 (2004)] to the symmetric quartic map. In this case, the width of stochastic layer scales as 0.35 power of {kappa}. The area of the footprint is roughly constant. The average radial diffusion coefficient of field lines near the X-point scales linearly with {kappa}. The low mn perturbation changes the quasisymmetric structure of the footprint, and reorganizes it into a single, large scale, asymmetric structure. The symmetric quartic map is combined with the dipole map [A. Punjabi, H. Ali, and A. H. Boozer, Phys. Plasmas 10, 3992 (2003)] to calculate the effects of magnetic perturbation from a current carrying coil. The coil position and coil current coil are constant. The dipole perturbation enhances the magnetic shear. The width of the stochastic layer scales exponentially with {kappa}. The area of the footprint decreases as the {kappa} increases. The radial diffusion coefficient of field lines scales exponentially with {kappa}. The dipole perturbation changes the topology of the footprint. It breaks up the toroidally spiraling footprint into a number of separate asymmetric toroidal strips. Practical applications of the symmetric quartic map to elongated divertor tokamak plasmas are suggested.

  7. D-zero rototrack: first stage of D-zero 2 Tesla solenoid field mapping device

    SciTech Connect (OSTI)

    Yamada, R.; Korienek, J.; Krider, J.; Lindenmeyer, C.; Miksa, D.; Miksa, R.

    1997-09-01T23:59:59.000Z

    A simple and portable field mapping device was developed at Fermilab and successfully used to test the D0 2 Tesla solenoid at Toshiba Works in Japan. A description of the mechanical structure, electric driving and control system, and software of the field mapping device is given. Four Hall probe elements of Group3 Digital Gaussmeters are mounted on the radial extension arm of a carriage, which is mounted on a central rotating beam. The system gives two dimensional motions (axial and rotational) to the Hall probes. To make the system compact and portable, we used a laptop computer with PCMCIA cards. For the control system we used commercially available software LabVIEW and Motion Toolbox, and for the data analysis we used Microsoft Excel.

  8. Note: Dynamic strain field mapping with synchrotron X-ray digital image correlation

    SciTech Connect (OSTI)

    Lu, L. [CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230027 (China); The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610207 (China); Fan, D.; Luo, S. N., E-mail: sluo@pims.ac.cn [The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610207 (China); Bie, B. X. [The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610207 (China); School of Science, Wuhan University of Technology, Wuhan, Hubei 430070 (China); Ran, X. X.; Qi, M. L., E-mail: qiml@whut.edu.cn [School of Science, Wuhan University of Technology, Wuhan, Hubei 430070 (China); Parab, N.; Sun, J. Z.; Liao, H. J.; Hudspeth, M. C.; Claus, B. [School of Aeronautics and Astronautics, Purdue University, West Lafayette, Indiana 47907 (United States); Fezzaa, K.; Sun, T. [Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Chen, W. [School of Aeronautics and Astronautics, Purdue University, West Lafayette, Indiana 47907 (United States); School of Material Science Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); Gong, X. L., E-mail: gongxl@ustc.edu.cn [CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230027 (China)

    2014-07-15T23:59:59.000Z

    We present a dynamic strain field mapping method based on synchrotron X-ray digital image correlation (XDIC). Synchrotron X-ray sources are advantageous for imaging with exceptional spatial and temporal resolutions, and X-ray speckles can be produced either from surface roughness or internal inhomogeneities. Combining speckled X-ray imaging with DIC allows one to map strain fields with high resolutions. Based on experiments on void growth in Al and deformation of a granular material during Kolsky bar/gas gun loading at the Advanced Photon Source beamline 32ID, we demonstrate the feasibility of dynamic XDIC. XDIC is particularly useful for dynamic, in-volume, measurements on opaque materials under high strain-rate, large, deformation.

  9. Maps

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The EnergyCenter (LMI-EFRC) -Publications &Tsao ·Resources » Maps

  10. Precise mapping of the magnetic field in the CMS barrel yoke using cosmic rays

    SciTech Connect (OSTI)

    Chatrchyan, S. [Yerevan Physics Institute (Aremenia); et al.,

    2010-03-01T23:59:59.000Z

    The CMS detector is designed around a large 4 T superconducting solenoid, enclosed in a 12000-tonne steel return yoke. A detailed map of the magnetic field is required for the accurate simulation and reconstruction of physics events in the CMS detector, not only in the inner tracking region inside the solenoid but also in the large and complex structure of the steel yoke, which is instrumented with muon chambers. Using a large sample of cosmic muon events collected by CMS in 2008, the field in the steel of the barrel yoke has been determined with a precision of 3 to 8% depending on the location.

  11. Encroachment by Word, Axis, and Tree: Mapping Techniques from the Colonization of New England

    E-Print Network [OSTI]

    Pearce, Margaret Wickens

    2004-01-01T23:59:59.000Z

    indicated the need for a more detailed and systematic examination of the way in which Indians and colonists mapped and re-mapped colonial town boundaries over time (Pearce, 1998b). This initial exploration was expanded in an effort to take a more... processual1 approach, with a close reading of one body of town records over time (Pearce, 1998a), rather than focusing on unrelated documents. For this close reading, I chose the region of the second wave of English coloniza- tion in Western Connecticut...

  12. He I vector magnetic field maps of a sunspot and its superpenumbral fine-structure

    E-Print Network [OSTI]

    Schad, T A; Lin, H; Tritschler, A

    2015-01-01T23:59:59.000Z

    Advanced inversions of high-resolution spectropolarimetric observations of the He I triplet at 1083 nm are used to generate unique maps of the chromospheric magnetic field vector across a sunspot and its superpenumbral canopy. The observations were acquired by the Facility Infrared Spectropolarimeter (FIRS) at the Dunn Solar Telescope (DST) on 29 January 2012. Multiple atmospheric models are employed in the inversions, as superpenumbral Stokes profiles are dominated by atomic-level polarization while sunspot profiles are Zeeman-dominated but also exhibit signatures perhaps induced by symmetry breaking effects of the radiation field incident on the chromospheric material. We derive the equilibrium magnetic structure of a sunspot in the chromosphere, and further show that the superpenumbral magnetic field does not appear finely structured, unlike the observed intensity structure. This suggests fibrils are not concentrations of magnetic flux but rather distinguished by individualized thermalization. We also dire...

  13. Three-dimensional field map of the Fermilab D0 detector

    SciTech Connect (OSTI)

    Ostiguy, J.; Yamada, R.

    1991-08-01T23:59:59.000Z

    The D0 detector is a general purpose hadron collider detector presently under construction at Fermilab and scheduled to be put in operation in the fall of 1991. The D0 muon detection system is composed of three major toroids referred to respectively as the Central Field (CF) toroid and the End Field (EF) toroids. The complete detector weighs in excess of 4000 metric tons and rests on a steel platform. The muon detection system was designed using standard 2D codes and flux maps inside were obtained for each of the toroids taken separately. Various magnetic field measurements were performed; discrepancies with the design calculations have been observed and attributed to three dimensional effects. In this paper, we compare the predictions of the 2D computations to 3D calculations for a fully assembled detector. We also estimate the electromagnetic forces between the toroids and discuss other 3D effects, in particular, the effect of the supporting platform. 4 refs., 3 figs.

  14. Technical Note Field Test of Digital Photography Biomass Estimation Technique in Tallgrass Prairie

    E-Print Network [OSTI]

    Morrison, Lloyd W.

    Technical Note Field Test of Digital Photography Biomass Estimation Technique in Tallgrass Prairie unmeasured because of the time required to clip plots and process samples, as well as limited access or proximity to a drying oven. We tested the digital photography biomass estimation technique for measuring

  15. Field Mapping At Silver Peak Area (Henkle, Et Al., 2005) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BVEnergy InformationInformation Field Mapping

  16. Electromagnetic oil field mapping for improved process monitoring and reservoir characterization: A poster presentation

    SciTech Connect (OSTI)

    Waggoner, J.R.; Mansure, A.J.

    1992-02-01T23:59:59.000Z

    This report is a permanent record of a poster paper presented by the authors at the Third International Reservoir Characterization Technical Conference in Tulsa, Oklahoma on November 3--5, 1991. The subject is electromagnetic (EM) techniques that are being developed to monitor oil recovery processes to improve overall process performance. The potential impact of EM surveys is very significant, primarily in the areas of locating oil, identifying oil inside and outside the pattern, characterizing flow units, and pseudo-real time process control to optimize process performance and efficiency. Since a map of resistivity alone has little direct application to these areas, an essential part of the EM technique is understanding the relationship between the process and the formation resistivity at all scales, and integrating this understanding into reservoir characterization and simulation. First is a discussion of work completed on the core scale petrophysics of resistivity changes in an oil recovery process; a steamflood is used as an example. A system has been developed for coupling the petrophysics of resistivity with reservoir simulation to simulate the formation resistivity structure arising from a recovery process. Preliminary results are given for an investigation into the effect of heterogeneity and anisotropy on the EM technique, as well as the use of the resistivity simulator to interpret EM data in terms of reservoir and process parameters. Examples illustrate the application of the EM technique to improve process monitoring and reservoir characterization.

  17. Field analytical techniques for mercury in soils technology evaluation. Topical report, November 1994--March 1997

    SciTech Connect (OSTI)

    Solc, J.; Harju, J.A.; Grisanti, A.A.

    1998-02-01T23:59:59.000Z

    This report presents the evaluation of the four field analytical techniques for mercury detection in soils, namely (1) an anodic stripping voltametry technique (ASV) developed and tested by General Electric Corporation; (2) a static headspace analysis (SHSA) technique developed and tested by Dr. Ralph Turner of Oak Ridge National Laboratory; (3) the BiMelyze{reg_sign} Mercury Immunoassay (Bio) developed and tested by BioNebraska, Inc.; and (4) a transportable x-ray fluorescence (XRF) instrument/technique developed and tested by Spectrace, Inc.

  18. Mapping residual stress fields from Vickers hardness indents using Raman microprobe spectroscopy

    SciTech Connect (OSTI)

    Sparks, R.G.; Enloe, W.S.; Paesler, M.A.

    1988-12-01T23:59:59.000Z

    Micro-Raman spectroscopy is used to map the residual stress fields in the vicinity of Vickers hardness indents. Both 514.5 and 488.0 nm, light is used to excite the effect and the resulting shifted and broadened Raman peaks are analyzed using computer deconvolution. Half-wave plates are used to vary the orientation of the incident later light`s polarization state with respect to crystal orientation. The Raman scattered light is then analyzed for polarization dependences which are indicative of the various components of the Raman scattering tensor. Such studies can yield valuable information about the orientation of stress components in a well known stress field. The results can then be applied to the determination of stress components in machined semiconductor materials.

  19. Exploring NoC Mapping Strategies: An Energy and Timing Aware Technique

    E-Print Network [OSTI]

    Marcon, Cesar; Moraes, Fernando; Susin, Altamiro; Reis, Igor; Hessel, Fabiano

    2011-01-01T23:59:59.000Z

    Complex applications implemented as Systems on Chip (SoCs) demand extensive use of system level modeling and validation. Their implementation gathers a large number of complex IP cores and advanced interconnection schemes, such as hierarchical bus architectures or networks on chip (NoCs). Modeling applications involves capturing its computation and communication characteristics. Previously proposed communication weighted models (CWM) consider only the application communication aspects. This work proposes a communication dependence and computation model (CDCM) that can simultaneously consider both aspects of an application. It presents a solution to the problem of mapping applications on regular NoCs while considering execution time and energy consumption. The use of CDCM is shown to provide estimated average reductions of 40% in execution time, and 20% in energy consumption, for current technologies.

  20. Technique development for field inspection of cracking in seam welded ducts

    SciTech Connect (OSTI)

    Shell, Eric B.; Benson, Craig [Wyle Laboratories, Inc., Dayton, OH 45440 (United States); Liljestrom, Greg C.; Shanahan, Stephen [Wyle Laboratories, Inc., Oklahoma City, OK 73110 (United States)

    2014-02-18T23:59:59.000Z

    The resistance seam weld interfaces between alloyed and pure titanium are an in service concern due to precipitation of titanium hydride and resulting embrittlement and cracking. Several inspection techniques were developed and evaluated for field use to characterize the damage in the fleet. Electromagnetic, ultrasonic, florescent penetrant, thermographic, and radiographic techniques were considered. The ultrasonic and electromagnetic approaches were both found suitable. However, the electromagnetic approach is more desirable for field inspections, due to consistency and ease of use. The electromagnetic inspection procedure is able to discriminate between precursor damage and through cracking with sufficient sensitivity to small cracks.

  1. A model of the AGS based on stepwise ray-tracing through the measured field maps of the main magnets

    SciTech Connect (OSTI)

    Dutheil Y.; Meot, F.; Tsoupas, N.

    2012-05-20T23:59:59.000Z

    Two-dimensional mid-plane magnetic field maps of two of the main AGS magnets were produced, from Hall probe measurements, for a series of different current settings. The analysis of these data yielded the excitation functions [1] and the harmonic coefficients [2] of the main magnets which have been used so far in all the models of the AGS. The constant increase of the computation power makes it possible today to directly use a stepwise raytracing through these measured field maps with a reasonable computation time. We describe in detail how these field maps have allowed the generation of models of the 6 different types of AGS main magnets, and how they are being handled with the Zgoubi ray-tracing code [3]. We give and discuss a number of results obtained regarding both beam and spin dynamics in the AGS, and we provide comparisons with other numerical and analytical modelling methods.

  2. A novel digital tomosynthesis (DTS) reconstruction method using a deformation field map

    SciTech Connect (OSTI)

    Ren Lei; Zhang Junan; Thongphiew, Danthai; Godfrey, Devon J.; Jackie Wu, Q.; Zhou Sumin; Yin Fangfang [Department of Radiation Oncology, Duke University Medical Center, DUMC Box 3295, Durham, North Carolina, 27710 (United States) and Duke Medical Physics Graduate Program, 2424 Erwin Road Suite 101, Durham, North Carolina 27705 (United States); Department of Radiation Oncology, Duke University Medical Center, DUMC Box 3295, Durham, North Carolina 27710 (United States); Department of Radiation Oncology, Duke University Medical Center, DUMC Box 3295, Durham, North Carolina, 27710 (United States) and Duke Medical Physics Graduate Program, 2424 Erwin Road Suite 101, Durham, North Carolina 27705 (United States)

    2008-07-15T23:59:59.000Z

    We developed a novel digital tomosynthesis (DTS) reconstruction method using a deformation field map to optimally estimate volumetric information in DTS images. The deformation field map is solved by using prior information, a deformation model, and new projection data. Patients' previous cone-beam CT (CBCT) or planning CT data are used as the prior information, and the new patient volume to be reconstructed is considered as a deformation of the prior patient volume. The deformation field is solved by minimizing bending energy and maintaining new projection data fidelity using a nonlinear conjugate gradient method. The new patient DTS volume is then obtained by deforming the prior patient CBCT or CT volume according to the solution to the deformation field. This method is novel because it is the first method to combine deformable registration with limited angle image reconstruction. The method was tested in 2D cases using simulated projections of a Shepp-Logan phantom, liver, and head-and-neck patient data. The accuracy of the reconstruction was evaluated by comparing both organ volume and pixel value differences between DTS and CBCT images. In the Shepp-Logan phantom study, the reconstructed pixel signal-to-noise ratio (PSNR) for the 60 deg. DTS image reached 34.3 dB. In the liver patient study, the relative error of the liver volume reconstructed using 60 deg. projections was 3.4%. The reconstructed PSNR for the 60 deg. DTS image reached 23.5 dB. In the head-and-neck patient study, the new method using 60 deg. projections was able to reconstruct the 8.1 deg. rotation of the bony structure with 0.0 deg. error. The reconstructed PSNR for the 60 deg. DTS image reached 24.2 dB. In summary, the new reconstruction method can optimally estimate the volumetric information in DTS images using 60 deg. projections. Preliminary validation of the algorithm showed that it is both technically and clinically feasible for image guidance in radiation therapy.

  3. Mapping of soot particles in a weakly sooting diffusion flame by aerosol techniques

    SciTech Connect (OSTI)

    Hepp, H.; Siegmann, K. [Federal Inst. of Tech., Zuerich (Switzerland). Lab. for Solid State Physics] [Federal Inst. of Tech., Zuerich (Switzerland). Lab. for Solid State Physics

    1998-10-01T23:59:59.000Z

    The evolution of detailed particle size distributions has been measured along the centerline of an axisymmetric diffusion flame of CH{sub 4} + Ar burning in air at 1 atm. Soot particles with mean diameters of 3--18 nm were observed. Changes in the size distribution exhibited zones where either nucleation, coagulation, or destruction of soot particles dominated. These highly sensitive measurements were made by microprobe sampling with an immediate dilution of 1:400, to quench the aerosol, and by subsequent application of aerosol measurement techniques. In parallel, the yield of photoemitted electrons from size-selected particles was determined. The yield shows a characteristic dependence on location in the flame, indicating changes of the particle`s surface. Multiphoton, time-of-flight mass spectrometry was used to investigate the correlation between polycyclic aromatic hydrocarbons in the flame and enhanced photoemission yield from the soot particles.

  4. NREL scientists develop near-field optical microscopy techniques for imaging solar cell junctions and identify

    E-Print Network [OSTI]

    Solar cell producers are facing urgent pressures to lower module production cost.This achievementNREL scientists develop near-field optical microscopy techniques for imaging solar cell junctions is an increasingly important issue for silicon solar cells. The issue has taken center stage now that the solar

  5. Direct imaging of neural currents using ultra-low field magnetic resonance techniques

    DOE Patents [OSTI]

    Volegov, Petr L. (Los Alamos, NM); Matlashov, Andrei N. (Los Alamos, NM); Mosher, John C. (Los Alamos, NM); Espy, Michelle A. (Los Alamos, NM); Kraus, Jr., Robert H. (Los Alamos, NM)

    2009-08-11T23:59:59.000Z

    Using resonant interactions to directly and tomographically image neural activity in the human brain using magnetic resonance imaging (MRI) techniques at ultra-low field (ULF), the present inventors have established an approach that is sensitive to magnetic field distributions local to the spin population in cortex at the Larmor frequency of the measurement field. Because the Larmor frequency can be readily manipulated (through varying B.sub.m), one can also envision using ULF-DNI to image the frequency distribution of the local fields in cortex. Such information, taken together with simultaneous acquisition of MEG and ULF-NMR signals, enables non-invasive exploration of the correlation between local fields induced by neural activity in cortex and more `distant` measures of brain activity such as MEG and EEG.

  6. Field mapping by off-axis electron holography: from devices to the detection of single dopant atoms.

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    Field mapping by off-axis electron holography: from devices to the detection of single dopant atoms. 3. Ernst-Ruska Center for Microscopy and Spectroscopy with Electrons, Research Centre Julich, D-52425 Julich, Germany. david.cooper@cea.fr Keywords: electron holography, dopant potentials, strain

  7. Three dimension temperature field reconstruction with image processing technique on pulverized coal boiler furnace

    SciTech Connect (OSTI)

    Shen Peihua; Qi Guoshui; Ma Zengyi [and others

    1999-07-01T23:59:59.000Z

    Temperature field distribution measurement is important for combustion diagnostics. With CCD camera, the authors can obtain abundance digital data of flame image instantaneous. Every data represent radiation heat transfer along projection beam. Based on Optic geometric and heat transfer theory, they develop a 3-d flame temperature field reconstruction technique, which can calculate a 3-d zone temperature using two perspectives CCD camera. The optical geometric relation of CCD's image formation and flame radiation heat transfer model is deduced, they establish the reconstruction equation group from radiation heat transfer, and optimization is introduced to solve these equation. The result of a PC boiler is presented.

  8. Representation of the mesoscale wind field using a line integral technique

    E-Print Network [OSTI]

    Trares, John S

    1982-01-01T23:59:59.000Z

    . Comparison between the Reconstructed Wind Fields via the LIT and Finite Difference Method. Future Research . Final Remarks . 51 52 52 55 REFERENCES. APPENDIX A. APPENDIX 8. V ITA. 58 60 65 86 LIST OF FIGURES Figure 1 Gridded surface height... and v components and the other uses the "Line integral Technique. " The details of these methods are as follows: 20 1) Finite Difference method From the interpolated wind components, the grid point values of divergence and vorticity are computed via...

  9. Comparison of soft computing techniques for a three-phase oil field centrifuge.

    SciTech Connect (OSTI)

    Smith, R. E. (Ronald E.); Parkinson, w; Miller, N. (Neal)

    2002-01-01T23:59:59.000Z

    In this work we compare fuzzy techniques to neural network techniques for building a soft sensor for a three-phase oil field centrifuge. The soft sensor is used in a feed-forward control system that augments a feedback control system. Two approaches were used to develop the soft sensor. The first approach was to use a fuzzy rule based system based upon the experience of an expert operator. The expert operator's experience was supplemented using a computer model of the system. The second approach was to use a neural network to build the inverse of the computer model. The pros and cons of both techniques are discussed. KEYWORDS: fuzzy logic, neural networks, soft sensor, soft computing

  10. Differences in geomagnetic Sq field representations due to variations in spherical harmonic analysis techniques

    SciTech Connect (OSTI)

    Campbell, W.H. (Geological Survey, Denver, CO (USA))

    1990-12-01T23:59:59.000Z

    Various methods for the spherical harmonic analysis of the quiet daily variation of geomagnetic fields (Sq) measured at the Earth's surface have been used to represent the separation of the external (source) and internal (induced) currents. The results of such methods differ because the modeling techniques often reflect differing special objectives of the researcher. One method utilizes the observed field measurements at all world locations determined at a specific instant of time. A second method uses only observations in one primary hemisphere, appropriately mirroring field values for the analysis in the opposite hemisphere. The third method, a variation of the second, uses field values in the opposite hemisphere that are mirrored from a primary region that is shifted in time by 6 months. A variation of these three methods utilizes only a longitude line of observatories and assumes that the 24 hours of Sq field variation represents a 360{degree} rotation of the analysis sphere. For the comparison, power spectral representation, global current patterns in different seasons, and deviations of model-computed field values from the surface observations were all evaluated. The power spectral study showed that the spherical harmonic analysis of Sq should be extended to order m = 6 and degree n = m + 17. The northern hemisphere current system seemed to be consistently stronger than the southern hemisphere system. Exclusion of the mid-latitude vortex polynomials with (n {minus} m) = 0 and 1 was shown to be a useful technique for exposing the unique polar cap current pattern S{sup p}{sub q}. The global method was generally best for modeling; however, the hemisphere mirroring methods with 6-month time shift were almost as good in their representation of the Sq fields. Different special regions of effective and poor modeling were identified for all three methods.

  11. FIRST SYNOPTIC MAPS OF PHOTOSPHERIC VECTOR MAGNETIC FIELD FROM SOLIS/VSM: NON-RADIAL MAGNETIC FIELDS AND HEMISPHERIC PATTERN OF HELICITY

    SciTech Connect (OSTI)

    Gosain, S.; Pevtsov, A. A. [National Solar Observatory, 950 North Cherry Avenue, Tucson, AZ 85719 (United States); Rudenko, G. V.; Anfinogentov, S. A. [Institute of Solar-Terrestrial Physics (ISTP), Russian Academy of Sciences, Irkutsk (Russian Federation)

    2013-07-20T23:59:59.000Z

    We use daily full-disk vector magnetograms from Vector Spectromagnetograph on Synoptic Optical Long-term Investigations of the Sun system to synthesize the first Carrington maps of the photospheric vector magnetic field. We describe these maps and make a comparison of the observed radial field with the radial field estimate from line-of-sight magnetograms. Furthermore, we employ these maps to study the hemispheric pattern of current helicity density, H{sub c} , during the rising phase of solar cycle 24. The longitudinal average over the 23 consecutive solar rotations shows a clear signature of the hemispheric helicity rule, i.e., H{sub c} is predominantly negative in the north and positive in the south. Although our data include the early phase of cycle 24, there appears to be no evidence for a possible (systematic) reversal of the hemispheric helicity rule at the beginning of the cycle as predicted by some dynamo models. Furthermore, we compute the hemispheric pattern in active region latitudes (-30 Degree-Sign {<=} {theta} {<=} 30 Degree-Sign ) separately for weak (100 G < |B{sub r} | < 500 G) and strong (|B{sub r} | > 1000 G) radial magnetic fields. We find that while the current helicity of strong fields follows the well-known hemispheric rule (i.e., {theta} {center_dot} H{sub c} < 0), H{sub c} of weak fields exhibits an inverse hemispheric behavior (i.e., {theta} {center_dot} H{sub c} > 0), albeit with large statistical scatter. We discuss two plausible scenarios to explain the opposite hemispheric trend of helicity in weak and strong field regions.

  12. First Synoptic Maps of Photospheric Vector Magnetic Field from SOLIS/VSM: Non-Radial Magnetic Fields and Hemispheric Pattern of Helicity

    E-Print Network [OSTI]

    Gosain, S; Rudenko, G V; Anfinogentov, S A

    2013-01-01T23:59:59.000Z

    We use daily full-disk vector magnetograms from Vector Spectromagnetograph (VSM) on Synoptic Optical Long-term Investigations of the Sun (SOLIS) system to synthesize the first Carrington maps of the photospheric vector magnetic field. We describe these maps and make a comparison of observed radial field with the radial field estimate from LOS magnetograms. Further, we employ these maps to study the hemispheric pattern of current helicity density, Hc, during the rising phase of the solar cycle 24. Longitudinal average over the 23 consecutive solar rotations shows a clear signature of the hemispheric helicity rule, i.e. Hc is predominantly negative in the North and positive in South. Although our data include the early phase of cycle 24, there appears no evidence for a possible (systematic) reversal of the hemispheric helicity rule at the beginning of cycle as predicted by some dynamo models. Further, we compute the hemispheric pattern in active region latitudes (-30 deg \\le \\theta \\le 30 deg) separately for we...

  13. Wide-Field Lensing Mass Maps from DES Science Verification Data

    E-Print Network [OSTI]

    Vikram, V; Jain, B; Bacon, D; Amara, A; Becker, M; Bernstein, G; Bonnett, C; Bridle, S; Brout, D; Busha, M; Frieman, J; Gaztanaga, E; Hartley, W; Jarvis, M; Kacprzak, T; Lahav, O; Leistedt, B; Lin, H; Melchior, P; Peiris, H; Rozo, E; Rykoff, E; Sanchez, C; Sheldon, E; Troxel, M; Wechsler, R; Zuntz, J; Abbott, T; Abdalla, F B; Armstrong, R; Banerji, M; Bauer, A H; Benoit-Levy, A; Bertin, E; Brooks, D; Buckley-Geer, E; Burke, D L; Capozzi, D; Rosell, A Carnero; Kind, M Carrasco; Castander, F J; Crocce, M; D'Andrea, C B; da Costa, L N; DePoy, D L; Desai, S; Diehl, H T; Dietrich, J P; Cunha, C E; Estrada, J; Evrard, A E; Neto, A Fausti; Fernandez, E; Flaugher, B; Fosalba, P; Gerdes, D; Gruen, D; Gruendl, R A; Honscheid, K; James, D; Kent, S; Kuehn, K; Kuropatkin, N; Li, T S; Maia, M A G; Makler, M; March, M; Marshall, J; Martini, Paul; Merritt, K W; Miller, C J; Miquel, R; Neilsen, E; Nichol, R C; Nord, B; Ogando, R; Plazas, A A; Romer, A K; Roodman, A; Sanchez, E; Scarpine, V; Sevilla, I; Smith, R C; Soares-Santos, M; Sobreira, F; Suchyta, E; Swanson, M E C; Tarle, G; Thaler, J; Thomas, D; Walker, A R; Weller, J

    2015-01-01T23:59:59.000Z

    Weak gravitational lensing allows one to reconstruct the spatial distribution of the projected mass density across the sky. These "mass maps" provide a powerful tool for studying cosmology as they probe both luminous and dark matter. In this paper, we present a weak lensing mass map reconstructed from shear measurements in a 139 deg^2 area from the Dark Energy Survey (DES) Science Verification (SV) data overlapping with the South Pole Telescope survey. We compare the distribution of mass with that of the foreground distribution of galaxies and clusters. The overdensities in the reconstructed map correlate well with the distribution of optically detected clusters. Cross-correlating the mass map with the foreground galaxies from the same DES SV data gives results consistent with mock catalogs that include the primary sources of statistical uncertainties in the galaxy, lensing, and photo-z catalogs. The statistical significance of the cross-correlation is at the 6.8 sigma level with 20 arcminute smoothing. A maj...

  14. Three-dimensional mapping of nickel oxidation states using full field x-ray absorption near edge structure nanotomography

    SciTech Connect (OSTI)

    Nelson, George J.; Harris, William M.; Izzo, John R. Jr.; Grew, Kyle N.; Chiu, Wilson K. S. [HeteroFoaM Center, a DOE Energy Frontier Research Center, Department of Mechanical Engineering, University of Connecticut, 191 Auditorium Rd., Storrs, Connecticut 06269-3139 (United States); Chu, Yong S. [National Synchrotron Light Source II, Brookhaven National Laboratory, Bldg. 703 Upton, New York 11973-5000 (United States); Yi, Jaemock [Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Ave., Bldg. 438-B007 Argonne, Illinois 60439 (United States); Andrews, Joy C.; Liu Yijin; Pianetta, Piero [Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., MS 69 Menlo Park, California 94025 (United States)

    2011-04-25T23:59:59.000Z

    The reduction-oxidation cycling of the nickel-based oxides in composite solid oxide fuel cells and battery electrodes is directly related to cell performance. A greater understanding of nickel redox mechanisms at the microstructural level can be achieved in part using transmission x-ray microscopy (TXM) to explore material oxidation states. X-ray nanotomography combined with x-ray absorption near edge structure (XANES) spectroscopy has been applied to study samples containing distinct regions of nickel and nickel oxide (NiO) compositions. Digitally processed images obtained using TXM demonstrate the three-dimensional chemical mapping and microstructural distribution capabilities of full-field XANES nanotomography.

  15. Development of algorithms for capacitance imaging techniques for fluidized bed flow fields

    SciTech Connect (OSTI)

    Loudin, W.J.

    1991-01-01T23:59:59.000Z

    The objective of this research is to provide support for the instrumentation concept of a High Resolution Capacitance Imaging System (HRCIS). The work involves the development and evaluation of the mathematical theory and associated models and algorithms which reduce the electronic measurements to valid physical characterizations. The research and development require the investigation of techniques to solve large systems of equations based on capacitance measurements for various electrode configurations in order to estimate densities of materials in a cross-section of a fluidized bed. Capacitance measurements are made for 400 connections of the 32-electrode system; 400 corresponding electric-field curves are constructed by solving a second order partial differential equation. These curves are used to partition the circular disk into 193 regions called pixels, and the density of material in each pixel is to be estimated. Two methods of approximating densities have been developed and consideration of a third method has been initiated. One method (Method 1) is based on products of displacement currents for intersecting electric-field curves on a cross section. For each pixel one point of intersection is chosen, and the product of the capacitance measurements is found. Both the product and the square-root-of-product seem to yield good relative distribution of densities.

  16. Development of algorithms for capacitance imaging techniques for fluidized bed flow fields. 1990 Annual report

    SciTech Connect (OSTI)

    Loudin, W.J.

    1991-01-01T23:59:59.000Z

    The objective of this research is to provide support for the instrumentation concept of a High Resolution Capacitance Imaging System (HRCIS). The work involves the development and evaluation of the mathematical theory and associated models and algorithms which reduce the electronic measurements to valid physical characterizations. The research and development require the investigation of techniques to solve large systems of equations based on capacitance measurements for various electrode configurations in order to estimate densities of materials in a cross-section of a fluidized bed. Capacitance measurements are made for 400 connections of the 32-electrode system; 400 corresponding electric-field curves are constructed by solving a second order partial differential equation. These curves are used to partition the circular disk into 193 regions called pixels, and the density of material in each pixel is to be estimated. Two methods of approximating densities have been developed and consideration of a third method has been initiated. One method (Method 1) is based on products of displacement currents for intersecting electric-field curves on a cross section. For each pixel one point of intersection is chosen, and the product of the capacitance measurements is found. Both the product and the square-root-of-product seem to yield good relative distribution of densities.

  17. A small unperturbing probe for the measurement and mapping of electric fields at extremely low frequencies

    E-Print Network [OSTI]

    Shrekenhamer, Abraham

    1975-01-01T23:59:59.000Z

    by means of optical fibers to eliminate perturbation of the measured electric field. The instrument utilizes the phenomenon of charge induction in con- ductors in the presence of an electric field. The charge induced on the exterior of the probe... conceptual circuit for electric field to analog voltage conversion. . 29 15 Induced-charge to analog-voltage converter. . . 35 16 Probe component layout . 36 17 Axis selector, optoelectronic converter and battery switching circuits. 18 Receiver...

  18. Remote Methodology used at B Plant Hanford to Map High Radiation and Contamination Fields and Document Remaining Hazards

    SciTech Connect (OSTI)

    SIMMONS, F.M.

    2000-01-01T23:59:59.000Z

    A remote radiation mapping system using the Gammacam{trademark} (AIL Systems Inc. Trademark) with real-time response was used in deactivating the B Plant at Hanford to produce digitized images showing actual radiation fields and dose rates. Deployment of this technology has significantly reduced labor requirements, decreased personnel exposure, and increased the accuracy of the measurements. Personnel entries into the high radiation/contamination areas was minimized for a dose savings of 30 Rem (.3 Seivert) and a cost savings of $640K. In addition, the data gathered was utilized along with historical information to estimate the amount of remaining hazardous waste in the process cells. The B Plant facility is a canyon facility containing 40 process cells which were used to separate cesium and strontium from high level waste. The cells and vessels are contaminated with chemicals used in the separation and purification processes. Most of the contaminants have been removed but the residual contamination from spills in the cells and heels in the tanks contribute to the localized high radioactivity. The Gammacam{trademark} system consists of a high density terbium-activated scintillating glass detector coupled with a digitized video camera. Composite images generated by the system are presented in pseudo color over a black and white image. Exposure times can be set from 10 milliseconds to 1 hour depending on the field intensity. This information coupled with process knowledge is then used to document the hazardous waste remaining in each cell. Additional uses for this radiation mapping system would be in support of facilities stabilization and deactivation activities at Hanford or other DOE sites. The system is currently scheduled for installation and mapping of the U Plant in 1999. This system is unique due to its portability and its suitability for use in high dose rate areas.

  19. Weed Mapping in Early-Season Maize Fields Using Object-Based Analysis of Unmanned Aerial Vehicle (UAV) Images

    E-Print Network [OSTI]

    Kelly, Maggi

    2013-01-01T23:59:59.000Z

    a weed infestation map in a grid structure. The estimationImages of a weed coverage map in a grid framework adapted toof a weed infestation map in a grid structure. A flowchart

  20. Network Maps of Technology Fields: How Measures of Relatedness Influence Network Structures

    E-Print Network [OSTI]

    Yan, Bowen

    2015-01-01T23:59:59.000Z

    The structure of the total technology space, together with the specialized knowledge positions of the inventors, companies and countries, conditions the prospect of their next innovations. Prior studies have proposed representing the technology space as a network of patent technology classes connected by links weighted according to their relatedness. Although the choice of relatedness measures affects the structure of the resulting networks, such measures have not been assessed in terms of their influences on network structures. In this paper, we first present six measures based on the similarity of knowledge bases of different technology fields and, alternatively, on the likelihood for inventors, organizations or countries to diversify across technology fields. Then, we compare the resulting networks in terms of network structures, vertex and edge properties and their predictability on the importance of the represented technology fields. Based on USPTO patent data from 1976 to 2010 and International Patent C...

  1. Patent Overlay Mapping: Visualizing Technological Distance

    E-Print Network [OSTI]

    Kay, Luciano; Youtie, Jan; Porter, Alan L; Rafols, Ismael

    2012-01-01T23:59:59.000Z

    The purpose of this paper is to present a new global patent map that represents all technological categories, and a method to locate patent data of individual organizations and technological fields on the global map. This second patent overlay map technique is shown to be of potential interest to support competitive intelligence and policy decision-making. The global patent map is based on similarities in citing-to-cited relationships between categories of the International Patent Classification (IPC) of European Patent Office (EPO) patents from 2000 to 2006. This patent dataset, extracted from PatStat database, represents more than 760,000 patent records in more than 400 IPC categories. To illustrate the kind of analytical support offered by this approach, the paper shows the overlay of nanotechnology-related patenting activities of two companies and two different nanotechnology subfields on to the global patent map. The exercise shows the potential of patent overlay maps to visualize technological areas and...

  2. Towards quantitative off-axis electron holographic mapping of the electric field around the tip of a sharp biased metallic needle

    SciTech Connect (OSTI)

    Beleggia, M. [Center for Electron Nanoscopy, Technical University of Denmark, Kongens Lyngby (Denmark); Helmholtz-Zentrum Berlin für Materialien und Energie, Berlin (Germany); Kasama, T. [Center for Electron Nanoscopy, Technical University of Denmark, Kongens Lyngby (Denmark); Larson, D. J.; Kelly, T. F. [CAMECA Instruments, Inc., Madison, Wisconsin 53711 (United States); Dunin-Borkowski, R. E. [Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute, Forschungzentrum Jülich, Jülich (Germany); Pozzi, G. [Department of Physics and Astronomy, University of Bologna, Bologna (Italy)

    2014-07-14T23:59:59.000Z

    We apply off-axis electron holography and Lorentz microscopy in the transmission electron microscope to map the electric field generated by a sharp biased metallic tip. A combination of experimental data and modelling provides quantitative information about the potential and the field around the tip. Close to the tip apex, we measure a maximum field intensity of 82 MV/m, corresponding to a field k factor of 2.5, in excellent agreement with theory. In order to verify the validity of the measurements, we use the inferred charge density distribution in the tip region to generate simulated phase maps and Fresnel (out-of-focus) images for comparison with experimental measurements. While the overall agreement is excellent, the simulations also highlight the presence of an unexpected astigmatic contribution to the intensity in a highly defocused Fresnel image, which is thought to result from the geometry of the applied field.

  3. Field Mapping At Neal Hot Springs Geothermal Area (Colwell, Et Al., 2012) |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV JumpFederalInformationInformation FieldOpen

  4. Field Mapping At Neal Hot Springs Geothermal Area (Edwards & Faulds, 2012)

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV JumpFederalInformationInformation FieldOpen|

  5. Field Mapping At Walker Lake Valley Area (Shoffner, Et Al., 2010) | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BVEnergy InformationInformation FieldEnergy

  6. Field Mapping At Walker-Lane Transitional Zone Region (Shevenell, Et Al.,

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BVEnergy InformationInformation FieldEnergy2008)

  7. A fast, flexible, approximate technique for computing radiative transfer in inhomogeneous cloud fields

    E-Print Network [OSTI]

    Robert, Pincus

    A fast, flexible, approximate technique for computing radiative transfer in inhomogeneous cloud.-J. Morcrette, A fast, flexible, approximate technique for computing radiative transfer in inhomogeneous cloud, which computes fluxes at each level. [3] The description of clouds in current LSMs is quite simple: Most

  8. Surface Plasmon Resonance (SPR) Reflectance Imaging: A Label-Free/Real-Time Mapping of Microscale Mixture Concentration Fields (Water+Ethanol)

    E-Print Network [OSTI]

    Kihm, IconKenneth David

    Mixture Concentration Fields (Water+Ethanol) Iltai Kim and Kenneth D. Kihm Department of Mechanical (water+ethanol) concentration fields with surface plasmon resonance (SPR) reflectance technique based the refractive index and mixture concentration fields. The presented results show that ethanol penetrates

  9. Characterization of Local field effect in organic film using pressure technique

    E-Print Network [OSTI]

    Chang, Wendi

    2013-01-01T23:59:59.000Z

    This thesis proposes and demonstrates a pressure probing technique for studying the effects of local dielectric changes on the excitonic energy levels in amorphous organic thin films for optoelectronic device applications. ...

  10. Husimi Maps in Graphene

    E-Print Network [OSTI]

    Douglas J. Mason; Mario F. Borunda; Eric J. Heller

    2012-06-08T23:59:59.000Z

    We present a method for bridging the gap between the Dirac effective field theory and atomistic simulations in graphene based on the Husimi projection, allowing us to depict phenomena in graphene at arbitrary scales. This technique takes the atomistic wavefunction as an input, and produces semiclassical pictures of quasiparticles in the two Dirac valleys. We use the Husimi tech- nique to produce maps of the scattering behavior of boundaries, giving insight into the properties of wavefunctions at energies both close to and far from the Dirac point. Boundary conditions play a significant role to the rise of Fano resonances, which we examine using the Husimi map to deepen our understanding of bond currents near resonance.

  11. Study of two-dimensional transient cavity fields using the finite-difference time-domain technique

    SciTech Connect (OSTI)

    Crisp, J.L.

    1988-06-01T23:59:59.000Z

    This work is intended to be a study into the application of the finite-difference time-domain, or FD-TD technique, to some of the problems faced by designers of equipment used in modern accelerators. In particular it discusses using the FD-TD algorithm to study the field distribution of a simple two-dimensional cavity in both space and time. 18 refs.

  12. Calculation methods and detection techniques for electric and magnetic fields from power lines with measurement verification

    E-Print Network [OSTI]

    Mamishev, Alexander V

    1994-01-01T23:59:59.000Z

    of extremely low frequency magnetic fields in the direct proximity of the conductors of power lines, situated well above the ground level. Conventional approximation of a sagged wire as a straight horizontal conductor of infinite length has been substituted...

  13. FIELD MEASUREMENT OF HIGH TEMPERATURE BULK REACTION RATES I: THEORY AND TECHNIQUE

    E-Print Network [OSTI]

    Baxter, Ethan F.

    and mineral chemistry. The local equilibrium assumption, used in geochronology, geothermobarometry describe in detail the theory and methodology of a technique for extracting bulk reaction rates directly for the exchange process. Forward modeling of the reactive transport process using numerical methods

  14. A visualization technique for Self-Organizing Maps with vector fields to obtain the cluster structure at

    E-Print Network [OSTI]

    Rauber,Andreas

    experimental results and discuss the general applicability of our method, along with a comparison to related several visualization methods have been proposed, yet different application domains may require additional algorithm for exploratory data analysis. It that has been used in a wide range of scientific and industrial

  15. Quantitative DNA fiber mapping

    DOE Patents [OSTI]

    Gray, Joe W. (San Francisco, CA); Weier, Heinz-Ulrich G. (Oakland, CA)

    1998-01-01T23:59:59.000Z

    The present invention relates generally to the DNA mapping and sequencing technologies. In particular, the present invention provides enhanced methods and compositions for the physical mapping and positional cloning of genomic DNA. The present invention also provides a useful analytical technique to directly map cloned DNA sequences onto individual stretched DNA molecules.

  16. Methods for enhancing mapping of thermal fronts in oil recovery

    DOE Patents [OSTI]

    Lee, David O. (Albuquerque, NM); Montoya, Paul C. (Albuquerque, NM); Wayland, Jr., James R. (Albuquerque, NM)

    1987-01-01T23:59:59.000Z

    A method for enhancing the resistivity contrasts of a thermal front in an oil recovery production field as measured by the CSAMT technique is disclosed. This method includes the steps of: (a) preparing a CSAMT-determined topological resistivity map of the production field; (b) introducing a solution of a dopant material into the production field at a concentration effective to alter the resistivity associated with the thermal front; said dopant material having a high cation exchange capacity which might be selected from the group consisting of montmorillonite, illite, and chlorite clays; said material being soluble in the connate water of the production field; (c) preparing a CSAMT-determined topological resistivity map of the production field while said dopant material is moving therethrough; and (d) mathematically comparing the maps from step (a) and step (c) to determine the location of the thermal front. This method is effective with the steam flood, fire flood and water flood techniques.

  17. Methods for enhancing mapping of thermal fronts in oil recovery

    DOE Patents [OSTI]

    Lee, D.O.; Montoya, P.C.; Wayland, J.R. Jr.

    1984-03-30T23:59:59.000Z

    A method for enhancing the resistivity contrasts of a thermal front in an oil recovery production field as measured by the controlled source audio frequency magnetotelluric (CSAMT) technique is disclosed. This method includes the steps of: (1) preparing a CSAMT-determined topological resistivity map of the production field; (2) introducing a solution of a dopant material into the production field at a concentration effective to alter the resistivity associated with the thermal front; said dopant material having a high cation exchange capacity which might be selected from the group consisting of montmorillonite, illite, and chlorite clays; said material being soluble in the conate water of the production field; (3) preparing a CSAMT-determined topological resistivity map of the production field while said dopant material is moving therethrough; and (4) mathematically comparing the maps from step (1) and step (3) to determine the location of the thermal front. This method is effective with the steam flood, fire flood and water flood techniques.

  18. A numerical technique for predicting wind fields using a Lagrangian approach

    E-Print Network [OSTI]

    Barnes, Stanley Louis

    1959-01-01T23:59:59.000Z

    . Using this technique, the equations are solved by finite difference approximations for an array of grid points. The method is tested f' or three case studies. Bared on normally available date, twelve-hour forecast velocities st tl e ~OC-mb suri... the latter forecasts. Suggestions for further study into the theoretical and technical aspects of the problem are given. ACICID DBDCYibIITS The material on numerical forecasts in tl is thesis hse been used by the author in preparing s scientific report...

  19. 2-D Stellar Evolution Code Including Arbitrary Magnetic Fields. I. Mathematical Techniques and Test Cases

    E-Print Network [OSTI]

    L. H. Li; P. Ventura; S. Basu; S. Sofia; P. Demarque

    2006-01-27T23:59:59.000Z

    A high-precision two-dimensional stellar evolution code has been developed for studying solar variability due to structural changes produced by varying internal magnetic fields of arbitrary configurations. Specifically, we are interested in modeling the effects of a dynamo-type field on the detailed internal structure and on the global parameters of the Sun. The high precision is required both to model very small solar changes (of order of $10^{-4}$) and short time scales (or order of one year). It is accomplished by using the mass coordinate to replace the radial coordinate, by using fixed and adjustable time steps, a realistic stellar atmosphere, elements diffusion, and by adjusting the grid points. We have also built into the code the potential to subsequently include rotation and turbulence. The current code has been tested for several cases, including its ability to reproduce the 1-D results.

  20. The Streamlined Darwin Field method (and a solution technique that makes it practical)

    SciTech Connect (OSTI)

    Hewett, D.W.; Larson, D.J.; Doss, S.

    1990-10-26T23:59:59.000Z

    The new Streamlined Darwin Field (SDF) model eliminates some Boundary Conditions (BCs) in which plasma-wall boundaries play a significant role in plasma behavior. The new formulation trades difficult BC issues for strongly coupled 2{sup nd}-order partial differential equations. We apply a particular version of ADI called Dynamic ADI (DADI) to this set of equations that is sufficiently fast to make solution of the SDF model practical in an initial-value PIC code.

  1. Magnetic Field Effect: An Efficient Tool To Investigate The Mechanism Of Reactions Using Laser Flash Photolysis Technique

    SciTech Connect (OSTI)

    Basu, Samita; Bose, Adity; Dey, Debarati [Chemical Sciences Division, S aha Institute of Nuclear Physics, 1/AF, Bidhannagar, Kolkata--700 064 (India)

    2008-04-24T23:59:59.000Z

    Magnetic field effect combined with laser flash photolysis technique have been used to study the mechanism of interactions between two drug-like quinone molecules, Menadione (1,4-naphthoquinone, MQ) and 9, 10 Anthraquinone (AQ) with one of the DNA bases, Adenine in homogeneous acetonitrile/water and heterogeneous micellar media. A switchover in reaction mode from electron transfer to hydrogen abstraction is observed with MQ on changing the solvent from acetonitrile/water to micelle; whereas, AQ retains its mode of interaction towards Adenine as electron transfer in both the media due to its bulky structure compared to MQ.

  2. Effect of nonlinear absorption on electric field applied lead chloride by Z-scan technique

    SciTech Connect (OSTI)

    Rejeena, I. [International School of Photonics, Cochin University of Science and Technology, Cochin Kerala, India and M.S.M. College, Kayamkulam, Kerala (India); Lillibai,; Nampoori, V. P. N.; Radhakrishnan, P. [International School of Photonics, Cochin University of Science and Technology, Cochin Kerala (India); Rahimkutty, M. H. [M.S.M. College, Kayamkulam, Kerala (India)

    2014-10-15T23:59:59.000Z

    The preparation, spectral response and optical nonlinearity of gel grown lead chloride single crystals subjected to electric field of 20V using parallel plate arrangements have been investigated. Optical band gap of the samples were determined using linear absorption spectra. Open aperture z-scan was employed for the determination of nonlinear absorption coefficient of PbCl{sub 2} solution. The normalized transmittance curve exhibits a valley shows reverse saturable absorption. The non linear absorption at different input fluences were recorded using a single Gaussian laser beam in tight focus geometry. The RSA nature of the sample makes it suitable for optical limiting applications.

  3. SEM technique for imaging and measuring electronic transport in nanocomposites based on electric field induced contrast

    DOE Patents [OSTI]

    Jesse, Stephen (Knoxville, TN) [Knoxville, TN; Geohegan, David B. (Knoxville, TN) [Knoxville, TN; Guillorn, Michael (Brooktondale, NY) [Brooktondale, NY

    2009-02-17T23:59:59.000Z

    Methods and apparatus are described for SEM imaging and measuring electronic transport in nanocomposites based on electric field induced contrast. A method includes mounting a sample onto a sample holder, the sample including a sample material; wire bonding leads from the sample holder onto the sample; placing the sample holder in a vacuum chamber of a scanning electron microscope; connecting leads from the sample holder to a power source located outside the vacuum chamber; controlling secondary electron emission from the sample by applying a predetermined voltage to the sample through the leads; and generating an image of the secondary electron emission from the sample. An apparatus includes a sample holder for a scanning electron microscope having an electrical interconnect and leads on top of the sample holder electrically connected to the electrical interconnect; a power source and a controller connected to the electrical interconnect for applying voltage to the sample holder to control the secondary electron emission from a sample mounted on the sample holder; and a computer coupled to a secondary electron detector to generate images of the secondary electron emission from the sample.

  4. Dynamic Reservoir Characterization for High Resolution Connectivity Mapping and Conformance Control, Morrow Sandstone Reservoir, Postle Field, Oklahoma

    E-Print Network [OSTI]

    Control, Morrow Sandstone Reservoir, Postle Field, Oklahoma "You've got to know when to hold `em, know units and their connectivity within a valley fill environment in Postle Field, Texas County, Oklahoma. Dynamic Reservoir Characterization at Postle Field Postle Field, Anadarko Basin, Oklahoma, produces from

  5. 920 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 62, NO. 4, APRIL 2014 Field Distribution Models of Spiral Coil for

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    920 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 62, NO. 4, APRIL 2014 Field of implant that has a much smaller size provides a means to find the optimal location and angle to harvest maximum energy. The analysis method for near-field wireless power transmission can be utilized

  6. Use of the 1991 ASCOT field study data in a mesoscale model employing a four-dimensional data assimilation technique

    SciTech Connect (OSTI)

    Fast, J.D.; O'Steen, B.L.

    1992-01-01T23:59:59.000Z

    In this study, a four-dimensional data assimilation technique based on Newtonian relaxation is incorporated into Colorado State University (CSU) Regional Atmospheric Modeling System (RAMS) and evaluated using data taken from one experiment of the US Department of Energy's (DOE) 1991 Atmospheric Studies in COmplex Terrain (ASCOT) field study along the front range of the Rockies in Colorado. The main objective of this study is to determine the ability of the model to predict small-scale circulations influenced by terrain, such as drainage flows, and assess the impact of data assimilation on the numerical results. In contrast to previous studies in which the smallest horizontal grid spacing was 10 km (Stauffer and Seaman, 1991) and 8 km (Yamada and Hermi, 1991), data assimilation is applied in this study to domains with a horizontal grid spacing as small as 1 km. The prognostic forecasts made by RAMS are evaluated by comparing simulations that employ static initial conditions, with simulations that incorporate continuous data assimilation and data assimilation for fixed period of time (dynamic initialization). This paper will also elaborate on the application and limitation of the Newtonian relaxation technique in limited-area mesoscale models with a relatively small grid spacing.

  7. Use of the 1991 ASCOT field study data in a mesoscale model employing a four-dimensional data assimilation technique

    SciTech Connect (OSTI)

    Fast, J.D.; O`Steen, B.L.

    1992-11-01T23:59:59.000Z

    In this study, a four-dimensional data assimilation technique based on Newtonian relaxation is incorporated into Colorado State University (CSU) Regional Atmospheric Modeling System (RAMS) and evaluated using data taken from one experiment of the US Department of Energy`s (DOE) 1991 Atmospheric Studies in COmplex Terrain (ASCOT) field study along the front range of the Rockies in Colorado. The main objective of this study is to determine the ability of the model to predict small-scale circulations influenced by terrain, such as drainage flows, and assess the impact of data assimilation on the numerical results. In contrast to previous studies in which the smallest horizontal grid spacing was 10 km (Stauffer and Seaman, 1991) and 8 km (Yamada and Hermi, 1991), data assimilation is applied in this study to domains with a horizontal grid spacing as small as 1 km. The prognostic forecasts made by RAMS are evaluated by comparing simulations that employ static initial conditions, with simulations that incorporate continuous data assimilation and data assimilation for fixed period of time (dynamic initialization). This paper will also elaborate on the application and limitation of the Newtonian relaxation technique in limited-area mesoscale models with a relatively small grid spacing.

  8. Volumetric Curvature and Coherency Assisted Fault Mapping and Fracture Prediction of Carbonate Reservoir Huabei Field, North China

    E-Print Network [OSTI]

    Li, Allen

    2014-08-10T23:59:59.000Z

    in carbonates, and are thus the focus of my investigation. With a 3D dataset and well data from the Huabei Field in North China, a carbonate reservoir is identified and interpreted through the field. We use the reservoir top depth to narrow our window...

  9. Appearance-Based Navigation, Localization, Mapping, and Map Merging for Heterogeneous Teams of Robots

    E-Print Network [OSTI]

    Erinc, Gorkem

    2013-01-01T23:59:59.000Z

    merging of an occupancy grid map and an appearance- basedmerging of an occupancy grid map and an appearance- basedW. Burgard. Improved techniques for grid map- ping with rao-

  10. Map-likelihood phasing

    SciTech Connect (OSTI)

    Terwilliger, Thomas C., E-mail: terwilliger@lanl.gov [Bioscience Division, Mail Stop M888, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

    2001-12-01T23:59:59.000Z

    A map-likelihood function is described that can yield phase probabilities with very low model bias. The recently developed technique of maximum-likelihood density modification [Terwilliger (2000 ?), Acta Cryst. D56, 965–972] allows a calculation of phase probabilities based on the likelihood of the electron-density map to be carried out separately from the calculation of any prior phase probabilities. Here, it is shown that phase-probability distributions calculated from the map-likelihood function alone can be highly accurate and that they show minimal bias towards the phases used to initiate the calculation. Map-likelihood phase probabilities depend upon expected characteristics of the electron-density map, such as a defined solvent region and expected electron-density distributions within the solvent region and the region occupied by a macromolecule. In the simplest case, map-likelihood phase-probability distributions are largely based on the flatness of the solvent region. Though map-likelihood phases can be calculated without prior phase information, they are greatly enhanced by high-quality starting phases. This leads to the technique of prime-and-switch phasing for removing model bias. In prime-and-switch phasing, biased phases such as those from a model are used to prime or initiate map-likelihood phasing, then final phases are obtained from map-likelihood phasing alone. Map-likelihood phasing can be applied in cases with solvent content as low as 30%. Potential applications of map-likelihood phasing include unbiased phase calculation from molecular-replacement models, iterative model building, unbiased electron-density maps for cases where 2F{sub o} ? F{sub c} or ?{sub A}-weighted maps would currently be used, structure validation and ab initio phase determination from solvent masks, non-crystallographic symmetry or other knowledge about expected electron density.

  11. One-Step Fabrication of High-Performance All-SWNT Field-Effect Transistors by Patterned Growth Technique

    E-Print Network [OSTI]

    Maruyama, Shigeo

    transfer characteristics, fabricated by modifying our SAM-based patterning technique [4]. With an improved pattering technique of SAM film, metal catalysts are dip-coated in SAM removed area. By ACCVD technique). Fig. 1. (a) SEM images of the fabricated all-SWNT FET. The electrode-shape films consisted

  12. Hot Pot Field Observations

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Lane, Michael

    Map of field observations including depressions, springs, evidence of former springs, travertine terraces and vegetation patterns. Map also contains interpretation of possible spring alignments.

  13. Hot Pot Field Observations

    SciTech Connect (OSTI)

    Lane, Michael

    2013-06-28T23:59:59.000Z

    Map of field observations including depressions, springs, evidence of former springs, travertine terraces and vegetation patterns. Map also contains interpretation of possible spring alignments.

  14. The holographic mapping of the Standard Model onto the black hole horizon, Part I: Abelian vector field, scalar field and BEH Mechanism

    E-Print Network [OSTI]

    G. 't Hooft

    2005-04-25T23:59:59.000Z

    Interactions between outgoing Hawking particles and ingoing matter are determined by gravitational forces and Standard Model interactions. In particular the gravitational interactions are responsible for the unitarity of the scattering against the horizon, as dictated by the holographic principle, but the Standard Model interactions also contribute, and understanding their effects is an important first step towards a complete understanding of the horizon's dynamics. The relation between in- and outgoing states is described in terms of an operator algebra. In this paper, the first of a series, we describe the algebra induced on the horizon by U(1) vector fields and scalar fields, including the case of an Englert-Brout-Higgs mechanism, and a more careful consideration of the transverse vector field components.

  15. Covariant Hamiltonian Field Theory

    E-Print Network [OSTI]

    Jürgen Struckmeier; Andreas Redelbach

    2012-05-22T23:59:59.000Z

    A consistent, local coordinate formulation of covariant Hamiltonian field theory is presented. Whereas the covariant canonical field equations are equivalent to the Euler-Lagrange field equations, the covariant canonical transformation theory offers more general means for defining mappings that preserve the form of the field equations than the usual Lagrangian description. It is proved that Poisson brackets, Lagrange brackets, and canonical 2-forms exist that are invariant under canonical transformations of the fields. The technique to derive transformation rules for the fields from generating functions is demonstrated by means of various examples. In particular, it is shown that the infinitesimal canonical transformation furnishes the most general form of Noether's theorem. We furthermore specify the generating function of an infinitesimal space-time step that conforms to the field equations.

  16. Final Report on Development of Optimized Field-Reversed Configuration Plasma Formation Techniques for Magnetized Target Fusion

    SciTech Connect (OSTI)

    Lynn, Alan

    2013-11-01T23:59:59.000Z

    The University of New Mexico (UNM) proposed a collaboration with Los Alamos National Laboratory (LANL) to develop and test methods for improved formation of field-reversed configuration (FRC) plasmas relevant to magnetized target fusion (MTF) energy research. MTF is an innovative approach for a relatively fast and cheap path to the production of fusion energy that utilizes magnetic confinement to assist in the compression of a hot plasma to thermonuclear conditions by an external driver. LANL is currently pursing demonstration of the MTF concept via compression of an FRC plasma by a metal liner z-pinch in conjunction with the Air Force Research Laboratory in Albuquerque, NM. A key physics issue for the FRC's ultimate success as an MTF target lies in the initial pre-ionization (PI) stage. The PI plasma sets the initial conditions from which the FRC is created. In particular, the PI formation process determines the amount of magnetic flux that can be trapped to form the FRC. A ringing theta pinch ionization (RTPI) technique, such as currently used by the FRX-L device at LANL, has the advantages of high ionization fraction, simplicity (since no additional coils are required), and does not require internal electrodes which can introduce impurities into the plasma. However RTPI has been shown to only trap #24;50% of the initial bias flux at best and imposes additional engineering constraints on the capacitor banks. The amount of trapped flux plays an important role in the FRC's final equilibrium, transport, and stability properties, and provides increased ohmic heating of the FRC through induced currents as the magnetic field decays. Increasing the trapped flux also provides the route to greatest potential gains in FRC lifetime, which is essential to provide enough time to translate and compress the FRC effectively. In conjunction with LANL we initially planned to develop and test a microwave break- down system to improve the initial PI plasma formation. The UNM team would design the microwave optics and oversee the fabrication and assembly of all components and assist with integration into the FRX-L machine control system. LANL would provide a preexisting 65 kW X-band microwave source and some associated waveguide hardware. Once constructed and installed, UNM would take the lead in operating the microwave breakdown system and conducting studies to optimize its use in FRC PI formation in close cooperation with the needs of the LANL MTF team. In conjunction with our LANL collaborators, we decided after starting the project to switch from a microwave plasma breakdown approach to a plasma gun technology to use for enhanced plasma formation in the FRX-L field-reversed configuration experiment at LANL. Plasma guns would be able to provide significantly higher density plasma with greater control over its distribution in time and space within the experiment. This would allow greater control and #12;ne-tuning of the PI plasma formed in the experiment. Multiple plasma guns would be employed to fill a Pyrex glass test chamber (built at UNM) with plasma which would then be characterized and optimized for the MTF effort.

  17. Location Map

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Lane, Michael

    Map file package containing shaded relief base with Hot Pot project area, major roads, railroads, and rivers. The inset map shows regional Paleozoic structural elements.

  18. Location Map

    SciTech Connect (OSTI)

    Lane, Michael

    2013-06-27T23:59:59.000Z

    Map file package containing shaded relief base with Hot Pot project area, major roads, railroads, and rivers. The inset map shows regional Paleozoic structural elements.

  19. Study of microfluidic measurement techniques using novel optical imaging diagnostics

    E-Print Network [OSTI]

    Park, Jaesung

    2007-04-25T23:59:59.000Z

    is applied for a 3-D vector field mapping in a microscopic flow and a Brownian motion tracking of nanoparticles. This technique modifies OSSM system for a micro-fluidic experiment, and the imaging system captures a diffracted particle image having numerous...

  20. Development and Clinical Evaluation of a Three-Dimensional Cone-Beam Computed Tomography Estimation Method Using a Deformation Field Map

    SciTech Connect (OSTI)

    Ren, Lei, E-mail: lren1@hfhs.org [Department of Radiation Oncology, Henry Ford Health System, Detroit, MI (United States); Chetty, Indrin J. [Department of Radiation Oncology, Henry Ford Health System, Detroit, MI (United States); Zhang Junan [Department of Radiation Oncology, Oregon Health and Science University, Portland, OR (United States); Jin Jianyue [Department of Radiation Oncology, Henry Ford Health System, Detroit, MI (United States); Wu, Q. Jackie; Yan Hui; Brizel, David M.; Lee, W. Robert [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States); Movsas, Benjamin [Department of Radiation Oncology, Henry Ford Health System, Detroit, MI (United States); Yin Fangfang [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States)

    2012-04-01T23:59:59.000Z

    Purpose: To develop a three-dimensional (3D) cone-beam computed tomography (CBCT) estimation method using a deformation field map, and to evaluate and optimize the efficiency and accuracy of the method for use in the clinical setting. Methods and Materials: We propose a method to estimate patient CBCT images using prior information and a deformation model. Patients' previous CBCT data are used as the prior information, and the new CBCT volume to be estimated is considered as a deformation of the prior image volume. The deformation field map is solved by minimizing deformation energy and maintaining new projection data fidelity using a nonlinear conjugate gradient method. This method was implemented in 3D form using hardware acceleration and multi-resolution scheme, and it was evaluated for different scan angles, projection numbers, and scan directions using liver, lung, and prostate cancer patient data. The accuracy of the estimation was evaluated by comparing the organ volume difference and the similarity between estimated CBCT and the CBCT reconstructed from fully sampled projections. Results: Results showed that scan direction and number of projections do not have significant effects on the CBCT estimation accuracy. The total scan angle is the dominant factor affecting the accuracy of the CBCT estimation algorithm. Larger scan angles yield better estimation accuracy than smaller scan angles. Lung cancer patient data showed that the estimation error of the 3D lung tumor volume was reduced from 13.3% to 4.3% when the scan angle was increased from 60 Degree-Sign to 360 Degree-Sign using 57 projections. Conclusions: The proposed estimation method is applicable for 3D DTS, 3D CBCT, four-dimensional CBCT, and four-dimensional DTS image estimation. This method has the potential for significantly reducing the imaging dose and improving the image quality by removing the organ distortion artifacts and streak artifacts shown in images reconstructed by the conventional Feldkamp-Davis-Kress (FDK) algorithm.

  1. Evaluation of electric and magnetic fields distribution and SAR induced in 3D models of water containers by radiofrequency radiation using FDTD and FEM simulation techniques

    E-Print Network [OSTI]

    Abdelsamie, Maher A A; Mustafa, Shuhaimi; Hashim, Dzulkifly

    2014-01-01T23:59:59.000Z

    In this study, two software packages using different numerical techniques FEKO 6.3 with Finite-Element Method (FEM) and XFDTD 7 with Finite Difference Time Domain Method (FDTD) were used to assess exposure of 3D models of square, rectangular, and pyramidal shaped water containers to electromagnetic waves at 300, 900, and 2400 MHz frequencies. Using the FEM simulation technique, the peak electric field of 25, 4.5, and 2 V/m at 300 MHz and 15.75, 1.5, and 1.75 V/m at 900 MHz were observed in pyramidal, rectangular, and square shaped 3D container models, respectively. The FDTD simulation method confirmed a peak electric field of 12.782, 10.907, and 10.625 V/m at 2400 MHz in the pyramidal, square, and rectangular shaped 3D models, respectively. The study demonstrated an exceptionally high level of electric field in the water in the two identical pyramid shaped 3D models analyzed using the two different simulation techniques. Both FEM and FDTD simulation techniques indicated variations in the distribution of elect...

  2. Production management techniques for water-drive gas reservoirs. Field No. 4; mid-continent aquifer gas storage reservoir. Volume 1. Topical report, January 1994

    SciTech Connect (OSTI)

    Hower, T.L.; Obernyer, S.L.

    1994-01-01T23:59:59.000Z

    A detailed reservoir characterization and numerical simulation study is presented for a mid-continent aquifer gas storage field. It is demonstrated that rate optimization during both injection and withdrawal cycles can significantly improve the performance of the storage reservoir. Performance improvements are realized in the form of a larger working volume of gas, a reduced cushion volume of gas, and decrease in field water production. By utilizing these reservoir management techniques gas storage operators will be able to minimize their base gas requirements, improve their economics, and determine whether the best use for a particular storage field is base loading or meeting peak day requirements. Volume I of this two-volume set contains a detailed technical discussion.

  3. Mapping the Parameter Space with Oscillatory and Steady State ...

    E-Print Network [OSTI]

    2013-09-26T23:59:59.000Z

    mapping of the parameter space even in the presence of noise. ... mapping encompasses two major issues. ... attention from various fields of applied science

  4. A technique for determining the diffusion patterns of 1, 2-dibromo-3-chloropropane under field conditions and the resulting isodose contours of two different application rates

    E-Print Network [OSTI]

    Walla, Walter J

    1970-01-01T23:59:59.000Z

    SCIViCE May 1970 i~fajor Suhj eo+?H. ant Patholo~ A TECHNIQUE FOR DET&i~L~&lZ'lG TPIE DIFFUSION PATTERNS OF 1, 2-DI&HOMO-3-CYIOROPROPA'lE V'ADER FIELD CONDITIOllS AND THE PZ&ULTINQ ISODOSE CORI'OURS OF Zl'0 D~&UT APPLICATION RATES A Thesis... By MALTER U. NALLA Approved as to style and content by: Chafrman oF Committee ~Ed f D part t Member n Member May 1970 Member AfrSTPMT A Technique. for Deteriiring the Dif izion ', at'terna 0" 1, 2-Di'oro;co-3-o2J oropropano Unc. cr Fle'ci Condit...

  5. Strain mapping on gold thin film buckling and siliconblistering

    SciTech Connect (OSTI)

    Goudeau, P.; Tamura, N.; Parry, G.; Colin, J.; Coupeau, C.; Cleymand, F.; Padmore, H.

    2005-09-01T23:59:59.000Z

    Stress/Strain fields associated with thin film buckling induced by compressive stresses or blistering due to the presence of gas bubbles underneath single crystal surfaces are difficult to measure owing to the microscale dimensions of these structures. In this work, we show that micro Scanning X-ray diffraction is a well suited technique for mapping the strain/stress tensor of these damaged structures.

  6. Field Mapping | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania:57427°,Ferry County,Glass Buttes Area (DOETheEt Al.,| Open

  7. BEAM DYNAMICS IN NS-FFAG EMMAWITH DYNAMICAL MAPS

    E-Print Network [OSTI]

    Giboudot, Y; Edgecock, R; Wolski, A

    2010-01-01T23:59:59.000Z

    The Non Scal­ing Fixed Field Al­ter­nat­ing Gra­di­ent EMMA has a com­pact lin­ear lat­tice. Ef­fect of Fringe Field on the beam has to be stud­ied care­ful­ly. A nu­mer­i­cal mag­net­ic field map is gen­er­at­ed by mag­net mea­sure­ments or mag­net de­sign soft­wares. We de­vel­oped a tech­nique that pro­duces from the nu­mer­i­cal field map, a dy­nam­i­cal map for a par­ti­cle trav­el­ling in the en­tire EMMA cell for a ref­er­ence en­er­gy with­out ac­cel­er­a­tion. Since the beam dy­nam­ics change with en­er­gy, a set of maps have been pro­duce with dif­fer­ent ref­er­ence en­er­gies be­tween 10 and 20MeV. For each ref­er­ence en­er­gy, sim­u­lat­ed tune and time of flight (TOF) have been com­pared with re­sults in Zgoubi - track­ing di­rect­ly through nu­mer­i­cal field map. The range of va­lid­i­ty of a sin­gle map has been in­ves­ti­gat­ed by track­ing par­ti­cle with large en­er­gy de­vi­a­tion. From that, a ...

  8. A multi-wavelength survey of AGN in the XMM-LSS field: I. Quasar selection via the KX technique

    E-Print Network [OSTI]

    Nakos, Th; Andreon, S; Surdej, J; Riaud, P; Hatziminaoglou, E; Garcet, O; Alloin, D; Baes, M; Galaz, G; Pierre, M; Quintana, H; Page, M J; Tedds, J A; Ceballos, M T; Corral, A; Ebrero, J; Krumpe, M; Mateos, S

    2008-01-01T23:59:59.000Z

    AIMS: We present a sample of candidate quasars selected using the KX-technique. The data cover 0.68 deg^2 of the X-ray Multi-Mirror (XMM) Large-Scale Structure (LSS) survey area where overlapping multi-wavelength imaging data permits an investigation of the physical nature of selected sources. METHODS: The KX method identifies quasars on the basis of their optical (R and z') to near-infrared (Ks) photometry and point-like morphology. We combine these data with optical (u*,g'r',i',z') and mid-infrared (3.6-24 micron) wavebands to reconstruct the spectral energy distributions (SEDs) of candidate quasars. RESULTS: Of 93 sources selected as candidate quasars by the KX method, 25 are classified as quasars by the subsequent SED analysis. Spectroscopic observations are available for 12/25 of these sources and confirm the quasar hypothesis in each case. Even more, 90% of the SED-classified quasars show X-ray emission, a property not shared by any of the false candidates in the KX-selected sample. Applying a photometr...

  9. A multi-wavelength survey of AGN in the XMM-LSS field: I. Quasar selection via the KX technique

    E-Print Network [OSTI]

    Th. Nakos; J. P. Willis; S. Andreon; J. Surdej; P. Riaud; E. Hatziminaoglou; O. Garcet; D. Alloin; M. Baes; G. Galaz; M. Pierre; H. Quintana; M. J. Page; J. A. Tedds; M. T. Ceballos; A. Corral; J. Ebrero; M. Krumpe; S. Mateos

    2009-02-24T23:59:59.000Z

    AIMS: We present a sample of candidate quasars selected using the KX-technique. The data cover 0.68 deg^2 of the X-ray Multi-Mirror (XMM) Large-Scale Structure (LSS) survey area where overlapping multi-wavelength imaging data permits an investigation of the physical nature of selected sources. METHODS: The KX method identifies quasars on the basis of their optical (R and z') to near-infrared (Ks) photometry and point-like morphology. We combine these data with optical (u*,g'r',i',z') and mid-infrared (3.6-24 micron) wavebands to reconstruct the spectral energy distributions (SEDs) of candidate quasars. RESULTS: Of 93 sources selected as candidate quasars by the KX method, 25 are classified as quasars by the subsequent SED analysis. Spectroscopic observations are available for 12/25 of these sources and confirm the quasar hypothesis in each case. Even more, 90% of the SED-classified quasars show X-ray emission, a property not shared by any of the false candidates in the KX-selected sample. Applying a photometric redshift analysis to the sources without spectroscopy indicates that the 25 sources classified as quasars occupy the interval 0.7 < z < 2.5. The remaining 68/93 sources are classified as stars and unresolved galaxies.

  10. Proposal to negotiate a collaboration agreement related to the application of novel cavity fabrication techniques and Nb/Cu sputter coating technology in the field of superconducting RF for the Future Circular Collider (FCC) study

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    Proposal to negotiate a collaboration agreement related to the application of novel cavity fabrication techniques and Nb/Cu sputter coating technology in the field of superconducting RF for the Future Circular Collider (FCC) study

  11. Cerro Prieto geothermal field: exploration during exploitation

    SciTech Connect (OSTI)

    Not Available

    1982-07-01T23:59:59.000Z

    Geological investigations at Momotombo included photogeology, field mapping, binocular microscope examination of cuttings, and drillhole correlations. Among the geophysical techniques used to investigate the field sub-structure were: Schlumberger and electromagnetic soundings, dipole mapping and audio-magnetotelluric surveys, gravity and magnetic measurements, frequency domain soundings, self-potential surveys, and subsurface temperature determinations. The geochemical program analyzed the thermal fluids of the surface and in the wells. The description and results of exploration methods used during the investigative stages of the Momotombo Geothermal Field are presented. A conceptual model of the geothermal field was drawn from the information available at each exploration phase. The exploration methods have been evaluated with respect to their contributions to the understanding of the field and their utilization in planning further development.

  12. An Extinction Map and Color Magnitude Diagram for the Globular Cluster NGC 3201

    E-Print Network [OSTI]

    Kaspar von Braun; Mario Mateo

    2000-11-30T23:59:59.000Z

    Differential $E_{V-I}$ variations of up to $\\sim 0.2$ mag on a scale of arcminutes across NGC 3201 are presented in the form of an extinction map. This map, created by calculating average $E_{V-I}$ values for stars in small subregions of the field with respect to a fiducial region, greatly improves the appearance of the CMD of the cluster. We describe how we implemented this technique in detail with our data for NGC 3201. A comparison between our map and that of the same region extracted from the COBE/DIRBE reddening maps published by Schlegel, Finkbeiner, & Davis (1998) (SFD) displays larger-scale similarities between the two maps as well as smaller-scale features which show up in our map but not in the SFD map. Several methods of determining an $E_{V-I}$ zeropoint to add to our differential extinction map are presented. Isochrone fitting proved to be the most successful one, but it produces an average $E_{V-I}$ for the cluster which is smaller than previously published values by $\\sim 1.5\\sigma$. Finally, our results seem to support the statement by Arce & Goodman (1999) that the SFD maps overestimate the reddening in regions of high extinction.

  13. Reflection technique for thermal mapping of semiconductors

    DOE Patents [OSTI]

    Walter, Martin J. (Lee, NY)

    1989-06-20T23:59:59.000Z

    Semiconductors may be optically tested for their temperatures by illuminating them with tunable monochromatic electromagnetic radiation and observing the light reflected off of them. A transition point will occur when the wavelength of the light corresponds with the actual band gap energy of the semiconductor. At the transition point, the image of the semiconductor will appreciably darken as the light is transmitted through it, rather than being reflected off of it. The wavelength of the light at the transition point corresponds to the actual band gap energy and the actual temperature of the semiconductor.

  14. Mapping (USPTO) Patent Data using Overlays to Google Maps

    E-Print Network [OSTI]

    Leydesdorff, Loet

    2011-01-01T23:59:59.000Z

    The paper describes a technique to use patent information available online (at the US Patent and Trademark Office) for the generation of Google Maps that indicate both the quantity and quality of patents granted at the city level. The resulting maps are relevant for technological innovation policies and R&D management because the US market can be considered as the leading market for patenting and patent competition. Quantitative data is made available by the mapping routines for more detailed statistical analysis, and the non-parametric statistics for significance testing are specified. The new mapping approach is explored for the cases of the emerging technologies of "RNA interference" and "nanotechnology" as specific examples. Perspectives for further developments of this technique (other databases and network analysis of co-inventions) are specified.

  15. Field Techniques | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania:57427°,Ferry County,Glass Buttes Area (DOETheEt

  16. Using value stream mapping to improve forging processes

    E-Print Network [OSTI]

    King, Stephen G. (Stephen George), 1974-

    2004-01-01T23:59:59.000Z

    Value stream mapping is a technique that uses icons to map the flow of product through a manufacturing system. These icons are aided by summary statistics to further detail the specific manufacturing system. The value ...

  17. On Field Constraint Analysis

    E-Print Network [OSTI]

    Wies, Thomas

    2005-11-03T23:59:59.000Z

    We introduce field constraint analysis, a new technique for verifying data structure invariants. A field constraint for a field is a formula specifying a set of objects to which the field can point. Field constraints ...

  18. Nondestructive volumetric 3-D chemical mapping of nickel-sulfur compounds at the nanoscale

    SciTech Connect (OSTI)

    Harris W. M.; Chu Y.; Nelson, G.J.; Kiss, A.M.; Izzo Jr, J.R.; Liu, Y.; Liu, M.; Wang, S.; Chiu W.K.S.

    2012-04-04T23:59:59.000Z

    Nano-structures of nickel (Ni) and nickel subsulfide (Ni{sub 3}S{sub 2}) materials were studied and mapped in 3D with high-resolution x-ray nanotomography combined with full field XANES spectroscopy. This method for characterizing these phases in complex microstructures is an important new analytical imaging technique, applicable to a wide range of nanoscale and mesoscale electrochemical systems.

  19. Site Map

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebookScholarship Fund3 Outlook forSDPPP Individual Permit:Site Map TUNL

  20. Site Map

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > TheNuclearHomelandMultivariateSite Map Main Menu About the ALS ALS@20

  1. Map ID

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electronEnergy Manufacturing Energy andYou areID 90 Map

  2. Quantitative strain mapping of InAs/InP quantum dots with 1 nm spatial resolution using dark field electron holography

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    by geometrical phase analysis of high angle annular dark field scanning transmission electron microscopy images resolution images have been used to obtain the strain in nano-structured materials.3 Although this approach in many different types of sam- ples, at this time the spatial resolution of between 3 and 6 nm

  3. Some examples of exponentially harmonic maps

    E-Print Network [OSTI]

    A D Kanfon; A Füzfa; D Lambert

    2002-05-15T23:59:59.000Z

    The aim of this paper is to study some examples of exponentially harmonic maps. We study such maps firstly on flat euclidean and Minkowski spaces and secondly on Friedmann-Lema\\^ itre universes. We also consider some new models of exponentially harmonic maps which are coupled with gravity which happen to be based on a generalization of the lagrangian for bosonic strings coupled with dilatonic field.

  4. Multi-parameter quantitative mapping of microfluidic devices 

    E-Print Network [OSTI]

    Bennet, Mathieu A.

    2011-11-23T23:59:59.000Z

    Fluorescence lifetime imaging microscopy (FLIM) is a powerful technique to non-invasively map the physical and chemical environment within microfluidic devices. In this work FLIM has been used in conjunction with a variety of other techniques...

  5. Chandra Survey in the AKARI North Ecliptic Pole Deep Field. I. X-ray Data, Point-like Source Catalog, Sensitivity Maps, and Number Counts

    E-Print Network [OSTI]

    Krumpe, M; Brunner, H; Hanami, H; Ishigaki, T; Takagi, T; Markowitz, A G; Goto, T; Malkan, M A; Matsuhara, H; Pearson, C; Ueda, Y; Wada, T

    2014-01-01T23:59:59.000Z

    We present data products from the 300 ks Chandra survey in the AKARI North Ecliptic Pole (NEP) deep field. This field has a unique set of 9-band infrared photometry covering 2-24 micron from the AKARI Infrared Camera, including mid-infrared (MIR) bands not covered by Spitzer. The survey is one of the deepest ever achieved at ~15 micron, and is by far the widest among those with similar depths in the MIR. This makes this field unique for the MIR-selection of AGN at z~1. We design a source detection procedure, which performs joint Maximum Likelihood PSF fits on all of our 15 mosaicked Chandra pointings covering an area of 0.34 square degree. The procedure has been highly optimized and tested by simulations. We provide a point source catalog with photometry and Bayesian-based 90 per cent confidence upper limits in the 0.5-7, 0.5-2, 2-7, 2-4, and 4-7 keV bands. The catalog contains 457 X-ray sources and the spurious fraction is estimated to be ~1.7 per cent. Sensitivity and 90 per cent confidence upper flux limit...

  6. Brain Mapping Using Topology Graphs Obtained by Surface Segmentation

    E-Print Network [OSTI]

    Linsen, Lars

    Brain Mapping Using Topology Graphs Obtained by Surface Segmentation Fabien Vivodtzev1 , Lars@ucdavis.edu Summary. Brain mapping is a technique used to alleviate the tedious and time- consuming process of annotating brains by mapping existing annotations from brain atlases to individual brains. We introduce

  7. Collective Behavior of Coupled Chaotic Maps

    E-Print Network [OSTI]

    M. G. Cosenza

    1995-07-21T23:59:59.000Z

    The collective behavior of a coupled map lattice having {\\it unbounded} chaotic local dynamics is investigated through the properties of its mean field. The presence of unstable periodic orbits in the local maps determines the emergence of nontrivial collective behavior. Windows of collective period-two states are found in parameter space.

  8. Mapping and ranking flow units in reef and shoal reservoirs associated with paleohighs: upper Jurassic (Oxfordian) Smackover Formation, Appleton and Vocation Fields, Escambia and Monroe Counties, Alabama 

    E-Print Network [OSTI]

    Morgan, Dylan

    2003-01-01T23:59:59.000Z

    Engineering at Texas A&M. I also thank George Bolger at Petro Tech Associates for his work on the capillary pressure tests. Very special appreciation goes to my parents, John and Grace Morgan. We did it! I only hope that one day I can give my children... in Field Well logs Full Diameter Slabbed Core Thin Sections Core Reports (Porosity, Permeability, and Fluid Saturation Data Plugs (NMR and MICP tests 9 wells 9 wells 3 wells 3 wells, 57 individual slides 9 wells 3 wells, 6 individual plugs 17...

  9. Geologic Maps Geology 200

    E-Print Network [OSTI]

    Kammer, Thomas

    Geologic Maps Geology 200 Geology for Environmental Scientists #12;Geologic Map of the US #12;Symbols found on geologic maps #12;Horizontal Strata #12;Geologic map of part of the Grand Canyon. Each color represents a different formation. #12;Inclined Strata #12;Dome #12;Geologic map of the Black Hills

  10. Maps of Selected State Subdivisions

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

    Crude Oil, Natural Gas, and Natural Gas Liquids Proved Reserves Summary Maps of Selected State Subdivisions Map 1: Alaska Map 2: California Map 3: Louisiana Map 4: New Mexico Map...

  11. Geothermal: Site Map

    Office of Scientific and Technical Information (OSTI)

    Site Map Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search About Publications Advanced Search New Hot Docs News Related Links Site Map...

  12. Digital Geologic Field Mapping Using Arcpad, In: Digital Mapping...

    Open Energy Info (EERE)

    and paper methods. The focus of the research was to minimize the size and weight of computer systems. Systems identified consist of a wearable PC or handheld computer (PDA) and...

  13. USING MICRO-SEISMICITY AND SEISMIC VELOCITIES TO MAP SUBSURFACE...

    Open Energy Info (EERE)

    GEOTHERMAL FIELD, CALIFORNIA Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: USING MICRO-SEISMICITY AND SEISMIC VELOCITIES TO MAP...

  14. Using Micro-Seismicity and Seismic Velocities to Map Subsurface...

    Open Energy Info (EERE)

    Geothermal Field California Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Using Micro-Seismicity and Seismic Velocities to Map Subsurface...

  15. Directions and Maps

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

    Directions & Maps Plan Your Visit Visit About the Museum Museum Hours Directions & Maps When to Visit Arrange for a Visit Around Los Alamos Contact Us invisible utility element...

  16. Technique development for uiper critical field studies of SmFeAs(O,F) in the 300T single turn system

    SciTech Connect (OSTI)

    Mcdonald, Ross D [Los Alamos National Laboratory; Balakirev, F. F. [Los Alamos National Laboratory; Altarawneh, M. M. [Los Alamos National Laboratory; Betts, J [Los Alamos National Laboratory; Mielke, C. H. [Los Alamos National Laboratory; Moll, Philip Jw [ETH ZURICH; Zhigadlo, N D [ETH ZURICH; Karpinski, J [ETH ZURICH; Batlogg, B. [ETH ZURICH

    2011-01-14T23:59:59.000Z

    In high temperature superconductors, such as the most recent class of iron pnictides, extremely high upper critical fields H{sub c2} are common. The determination of H{sub c2}(T) is crucial to understand the detailed nature of the superconductor, in particular H{sub c2}(T = 0K) is of great interest. It is not only related to fundamental properties of the system, it is furthermore of great importance for materials science, as it is the ultimate limit of applicability of this superconductor in high field applications. However, this important quantity can only be estimated by extrapolation, as H{sub c2}(T = 0K) well exceeds hundreds of Tesla in optimally doped SillFeAs(O,F). We are developing methods to measure Ha(T) in direct transport in the extreme magnetic fields generated by the LANL single turn magnet.

  17. Production management techniques for water-drive gas reservoirs. Field No. 2, offshore gulf coast over-pressured, dry gas reservoirs. Topical report, July 1993

    SciTech Connect (OSTI)

    Jones, R.E.; Jirik, L.A.; Hower, T.L.

    1993-07-01T23:59:59.000Z

    An investigation of reservoir management strategies for optimization of ultimate hydrocarbon recovery and net present value from an overpressured, high yield gas condensate reservoir with water influx is reported. This field evaluation was based on a reservoir simulation. Volumetric and performance-derived original gas-in-place estimates did not agree: the performance-derived values were significantly lower than those predicted from volumetric analysis. Predicted field gas recovery was improved significantly by methods which accelerated gas withdrawals. Recovery was also influenced by well location. Accelerated withdrawals from wells near the aquifer tended to reduce sweep by cusping and coning water. This offset any benefits of increased gas rates.

  18. Career Map: Instrumentation Coordinator

    Broader source: Energy.gov [DOE]

    The Wind Program's Career Map provides job description information for Instrumentation Coordinator positions.

  19. Production management techniques for water-drive gas reservoirs. Field number 1, onshore gulf coast over-pressured, high yield condensate reservoir. Topical report, July 1993

    SciTech Connect (OSTI)

    Hower, T.L.

    1993-07-01T23:59:59.000Z

    To develop improved completion and reservoir management strategies for water-drive gas reservoirs, the study conducted on an overpressured high yield gas condensate reservoir is reported. The base recovery factor for the field was projected to be only 47.8%, due to high residual gas saturation and a relatively strong aquifer which maintained reservoir pressure.

  20. Pitfalls of digital maps

    SciTech Connect (OSTI)

    Brewer, B.B.

    1986-05-01T23:59:59.000Z

    Computers allow us to combine maps from different sources and different scales more easily. In the past, these variations had to be ignored or only partly solved. With the advent of computers and increased digital maps, these inconsistencies become glaring errors that should no longer be ignored. The final success of a project largely lies on the accuracy and validity of its maps. This paper discusses problems and solutions associated with trying to tie maps together. The paper concentrates on the importance of understanding map projections and the problems involved in adding new maps to existing digital maps.

  1. Measurements of 222Rn, 220Rn, and CO Emissions in Natural CO2 Fields in Wyoming: MVA Techniques for Determining Gas Transport and Caprock Integrity

    SciTech Connect (OSTI)

    Kaszuba, John; Sims, Kenneth

    2014-09-30T23:59:59.000Z

    An integrated field-laboratory program evaluated the use of radon and CO2 flux measurements to constrain source and timescale of CO2 fluxes in environments proximate to CO2 storage reservoirs. By understanding the type and depth of the gas source, the integrity of a CO2 storage reservoir can be assessed and monitored. The concept is based on correlations of radon and CO2 fluxes observed in volcanic systems. This fundamental research is designed to advance the science of Monitoring, Verification, and Accounting (MVA) and to address the Carbon Storage Program goal of developing and validating technologies to ensure 99 percent storage performance. Graduate and undergraduate students conducted the research under the guidance of the Principal Investigators; in doing so they were provided with training opportunities in skills required for implementing and deploying CCS technologies. Although a final method or “tool” was not developed, significant progress was made. The field program identified issues with measuring radon in environments rich in CO2. Laboratory experiments determined a correction factor to apply to radon measurements made in CO2-bearing environments. The field program also identified issues with radon and CO2-flux measurements in soil gases at a natural CO2 analog. A systematic survey of radon and CO2 flux in soil gases at the LaBarge CO2 Field in Southwest Wyoming indicates that measurements of 222Rn (radon), 220Rn (thoron), and CO2 flux may not be a robust method for monitoring the integrity of a CO2 storage reservoir. The field program was also not able to correlate radon and CO2 flux in the CO2-charged springs of the Thermopolis hydrothermal system. However, this part of the program helped to motivate the aforementioned laboratory experiments that determined correction factors for measuring radon in CO2-rich environments. A graduate student earned a Master of Science degree for this part of the field program; she is currently employed with a geologic consulting company. Measurement of radon in springs has improved significantly since the field program first began; however, in situ measurement of 222Rn and particularly 220Rn in springs is problematic. Future refinements include simultaneous salinity measurements and systematic corrections, or adjustments to the partition coefficient as needed for more accurate radon concentration determination. A graduate student earned a Master of Science degree for this part of the field program; he is currently employed with a geologic consulting company. Both graduate students are poised to begin work in a CCS technology area. Laboratory experiments evaluated important process-level fundamentals that effect measurements of radon and CO2. Laboratory tests established that fine-grained source minerals yield higher radon emissivity compared to coarser-sized source minerals; subtleties in the dataset suggest that grain size alone is not fully representative of all the processes controlling the ability of radon to escape its mineral host. Emissivity for both 222Rn and 220Rn increases linearly with temperature due to reaction of rocks with water, consistent with faster diffusion and enhanced mineral dissolution at higher temperatures. The presence of CO2 changes the relative importance of the factors that control release of radon. Emissivity for both 222Rn and 220Rn in CO2-bearing experiments is greater at all temperatures compared to the experiments without CO2, but emissivity does not increase as a simple function of temperature. Governing processes may include a balance between enhanced dissolution versus carbonate mineral formation in CO2-rich waters.

  2. Dimensional reduction, Seiberg-Witten map, and supersymmetry

    SciTech Connect (OSTI)

    Saka, E. Ulas [Physics Department, Istanbul University, TR-34134 Vezneciler, Istanbul (Turkey); Uelker, Kayhan [Feza Guersey Institute, P.O. Box 6, TR-34684 Cengelkoey, Istanbul (Turkey)

    2007-04-15T23:59:59.000Z

    It is argued that dimensional reduction of the Seiberg-Witten map for a gauge field induces Seiberg-Witten maps for the other noncommutative fields of a gauge invariant theory. We demonstrate this observation by dimensionally reducing the noncommutative N=1 super Yang-Mills (SYM) theory in 6 dimensions to obtain noncommutative N=2 SYM in 4 dimensions. We explicitly derive Seiberg-Witten maps of the component fields in 6 and 4 dimensions. Moreover, we give a general method to define the deformed supersymmetry transformations that leave the actions invariant after performing Seiberg-Witten maps.

  3. A static mapping of sparse Cholesky factorization onto distributed memory architectures

    E-Print Network [OSTI]

    Sustaita, Agapito

    1995-01-01T23:59:59.000Z

    that not all tasks have the same computational workload. The proposed mapping technique makes use of the elimination tree which is derived from the column dependencies in the sparse definite positive input matrix A. The mapping solution presented...

  4. A static mapping of sparse Cholesky factorization onto distributed memory architectures 

    E-Print Network [OSTI]

    Sustaita, Agapito

    1995-01-01T23:59:59.000Z

    that not all tasks have the same computational workload. The proposed mapping technique makes use of the elimination tree which is derived from the column dependencies in the sparse definite positive input matrix A. The mapping solution presented...

  5. Field Mapping (Healy, 1970) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV JumpFederal HighwayFernley, Nevada:ControlsHealy,

  6. Introgression & mapping Fiber cell

    E-Print Network [OSTI]

    Germplasm Introgression Genomics & mapping Fiber cell initiation Radiation hybrid (RH) mapping and breeding. Research activities commonly include plant breeding, genetics, genomics, cytogenetics, molecular methods. (C, S) · Contribute uniquely to genomics and its relevance to genetic improvement (C,S) · Harness

  7. SERC Grants Interactive Map

    Broader source: Energy.gov [DOE]

    View SERC Grants in a larger map. To report corrections, please email SustainableEnergyWAP@ee.doe.gov.

  8. National Hydropower Map

    Broader source: Energy.gov [DOE]

    High-resolution map produced by Oak Ridge National Laboratory showing hydropower resources throughout the United States.

  9. WIPP Projects Interative Map

    Broader source: Energy.gov [DOE]

    View WIPP Projects in a larger map. To report corrections, please email WeatherizationInnovation@ee.doe.gov.

  10. Quantitive DNA Fiber Mapping

    E-Print Network [OSTI]

    Lu, Chun-Mei

    2009-01-01T23:59:59.000Z

    of California. Lu et al. : DNA Fiber Mapping page - 35 Lu etal. : DNA Fiber Mapping page - 36 a b c d e f g OV P1 cloneSp6 end T7 end Lu et al. : DNA Fiber Mapping page - 37 a b c

  11. AREA-EFFICIENTHIGH-THROUGHPUTVLSI ARCHITECTUREFOR MAP-BASED TURBO EQUALIZER

    E-Print Network [OSTI]

    Singer, Andrew C

    AREA-EFFICIENTHIGH-THROUGHPUTVLSI ARCHITECTUREFOR MAP-BASED TURBO EQUALIZER Seok-Jun Lee, Naresh R an area-efficient MAP-based turbo equalizer VLSI architecture by proposing a symbol-based soft-input soft-interleaved com- putation with an area savings of 25%. 1. INTRODUCTION The turbo decoding technique has found

  12. Methods for Mining Protein Contact Maps Mohammed J. Zaki

    E-Print Network [OSTI]

    Zaki, Mohammed Javeed

    . In this paper we describe how data mining can be used to extract valuable information from contact maps and genome mapping techniques. Genome sequencing projects have resulted in rapidly growing databases Seed Grant 1 #12;2 CHAPTER 1 databases. High performance data analysis algorithms are also becoming

  13. Microearthquake Studies at the Salton Sea Geothermal Field

    SciTech Connect (OSTI)

    Templeton, Dennise

    2013-10-01T23:59:59.000Z

    The objective of this project is to detect and locate microearthquakes to aid in the characterization of reservoir fracture networks. Accurate identification and mapping of the large numbers of microearthquakes induced in EGS is one technique that provides diagnostic information when determining the location, orientation and length of underground crack systems for use in reservoir development and management applications. Conventional earthquake location techniques often are employed to locate microearthquakes. However, these techniques require labor-intensive picking of individual seismic phase onsets across a network of sensors. For this project we adapt the Matched Field Processing (MFP) technique to the elastic propagation problem in geothermal reservoirs to identify more and smaller events than traditional methods alone.

  14. Microearthquake Studies at the Salton Sea Geothermal Field

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Templeton, Dennise

    The objective of this project is to detect and locate microearthquakes to aid in the characterization of reservoir fracture networks. Accurate identification and mapping of the large numbers of microearthquakes induced in EGS is one technique that provides diagnostic information when determining the location, orientation and length of underground crack systems for use in reservoir development and management applications. Conventional earthquake location techniques often are employed to locate microearthquakes. However, these techniques require labor-intensive picking of individual seismic phase onsets across a network of sensors. For this project we adapt the Matched Field Processing (MFP) technique to the elastic propagation problem in geothermal reservoirs to identify more and smaller events than traditional methods alone.

  15. Electrochemical Techniques

    SciTech Connect (OSTI)

    Chen, Gang; Lin, Yuehe

    2008-07-20T23:59:59.000Z

    Sensitive and selective detection techniques are of crucial importance for capillary electrophoresis (CE), microfluidic chips, and other microfluidic systems. Electrochemical detectors have attracted considerable interest for microfluidic systems with features that include high sensitivity, inherent miniaturization of both the detection and control instrumentation, low cost and power demands, and high compatibility with microfabrication technology. The commonly used electrochemical detectors can be classified into three general modes: conductimetry, potentiometry, and amperometry.

  16. Naval Petroleum Reserve No. 2: Buena Vista Oil and Gas Field, Kern County, California: Proved reserves, Developed and undeveloped, Sections 6 and 8: Development history and exploitation techniques, Effective July 1, 1987: (Final technical report)

    SciTech Connect (OSTI)

    Carey, K.B.

    1987-09-09T23:59:59.000Z

    The research for the initial Naval Petroleum Reserve No. 2 (NPR-2), study Task Assignment 010, showed the possibility of undeveloped proved reserves in the Shallow Pool on Government leases. Task Assignment 010C included a study to confirm or disprove the possibility. The six-section area, which is highlighted on Exhibit M-2, was chosen as the area for specific study of this subject. The Shallow Oil Zone, as depicted on Exhibit S-1, was the focal point of the study in the area. Competitive development of Government land with adjacent privately held land is an issue which has often been raised regarding NPR-2; however, it has never been formally addressed. Task Assignment 010C commissioned a study of the subject in the same six-section area designated for the study of proved undeveloped reserves. The producing formations in the Buena Vista Field of NPR-2 are very similar to the producing formations in the Elk Hills Field of NPR-1 to the north. It is possible that some of the successful development techniques utilized in NPR-2 by the various operators might enhance production efficiency at NPR-1. Task Assignment 010C included a detailed task of researching techniques used in NPR-2 for possible application in NPR-1. Because the detailed tasks of Task Assignment 010C are divergent in scope, a composite summary of the study's research is not included in this report. Each task's research is detailed in a separate Discussion section. Exhibits for these discussions are contained in an Exhibit section at the end of this volume. The appendices include: task assignment; DOE letters to lessees; Evans, Carey and Crozier letters to lessees; reports and studies from lessees; core analysis data; production data; geologic picks of formation tops; and annotated well logs. 22 figs., 6 tabs.

  17. MAP3S precipitation chemistry network: seventh periodic summary report, 1983. [MAP3S Network

    SciTech Connect (OSTI)

    Rothert, J.E.; Dana, M.T.

    1984-11-01T23:59:59.000Z

    This summary report, the seventh in the series, contains complete field and chemical data from the MAP3S Precipitation Chemistry Network for the year 1983. Sections cover QA/QC of the MAP3S/PCN; network history, network site information and a MAP3S/PCN bibliography; and a brief statistical look at the laboratory operations for 1983. There is also a brief statistical summary for 1982 to 1983. Included under the Quality Control section are the QA audits for site performance, laboratory comparisons, field blank and pH test results, and sample shipping and analysis results. Included is a listing of cooperating organizations and personnel for the MAP3S/PCN. 10 references, 10 figures, 32 tables.

  18. Regularity of mappings inverse to Sobolev mappings

    SciTech Connect (OSTI)

    Vodop'yanov, Sergei K [S.L. Sobolev Institute for Mathematics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk (Russian Federation)

    2012-10-31T23:59:59.000Z

    For homeomorphisms {phi}:{Omega}{yields}{Omega}' on Euclidean domains in R{sup n}, n{>=}2, necessary and sufficient conditions ensuring that the inverse mapping belongs to a Sobolev class are investigated. The result obtained is used to describe a new two-index scale of homeomorphisms in some Sobolev class such that their inverses also form a two-index scale of mappings, in another Sobolev class. This scale involves quasiconformal mappings and also homeomorphisms in the Sobolev class W{sup 1}{sub n-1} such that rankD{phi}(x){<=}n-2 almost everywhere on the zero set of the Jacobian det D{phi}(x). Bibliography: 65 titles.

  19. Mapping in the Cloud: Working with Google Maps and other Mapping Services

    E-Print Network [OSTI]

    Peterson, Michael

    2014-11-19T23:59:59.000Z

    :document.getElementById('map'), /*ID of element on the page where you want the map added*/ zoom:10, /*initial zoom level of map*/ latLng:{lat:39.743943, lng:-105.020089}, /*center of map in latitude/longitude*/ mtype...:'map' /*map type (map)*/ }; /*Construct an instance of MQA.TileMap with the options object*/ window.map = new MQA.TileMap(options); /*An example using the MQA.Poi constructor. You will need to pass in an object containing the lat (Latitude) and lng (Longitude...

  20. Approximation of Harmonic Maps and Wave Maps Soren Bartels

    E-Print Network [OSTI]

    Bartels, Soeren

    Approximation of Harmonic Maps and Wave Maps S¨oren Bartels Partial differential equations to certain boundary condtions. If X = then critical points u : N are called harmonic maps into N, ·) = u0, tu(0, ·) = v0. To approximate harmonic maps or wave maps we consider a regular triangula- tion

  1. FIELD MEASUREMENT TECHNIQUES: STATUS AND NEEDS

    E-Print Network [OSTI]

    Cook, N.G.W.

    2010-01-01T23:59:59.000Z

    Furthermore, of all rock properties, thermomechanicalthat the information ·on·rock properties available in thethe inherent variability in properties within a rock mass.

  2. The use of broadband microseisms for hydraulic fracture mapping

    SciTech Connect (OSTI)

    Sleefe, G.E.; Warpinski, N.R.; Engler, B.P.

    1993-08-01T23:59:59.000Z

    When a hydrocarbon reservoir is subjected to a hydraulic fracture treatment, the cracking and slipping of the formation results in the emission of seismic energy. The objective of this study was to determine the advantages of using broadband (100 Hz to 1500 M) microseismic emissions to map a hydraulic fracture treatment. A hydraulic fracture experiment was performed in the Piceance Basin of Western Colorado to induce and record broadband microseismic events. The formation was subjected to four processes; break-down/ballout, step-rate test, KCL mini-fracture, and linear-gel mini-fracture. Broadband microseisms were successfully recorded by a novel three-component wall-locked seismic accelerometer package, placed in an observation well 211 ft (64 m) offset from the treatment well. During the two hours of formation treatment, more than 1200 significant microseismic events were observed. The occurrences of the events strongly correlated with the injection bore-bole pressures during the treatments. Using both hodogram analysis and time of arrival information, estimates of the origination point of the seismic events were computed. A map of the event locations yielded a fracture orientation estimate consistent with the known orientation of the field in the formation. This paper describes the technique for acquiring and analyzing broadband microseismic events and illustrate how the new broadband approach can enhance signal detectability and event location resolution.

  3. Field examples of electrical resistivity changes during steamflooding

    SciTech Connect (OSTI)

    Mansure, A.J. (Sandia National Lab., Albuquerque, NM (United States)); Meldau, R.F.; Weyland, H.V.

    1993-03-01T23:59:59.000Z

    An essential part of using electrical geodiagnostic techniques to map thermal recovery processes is understanding the relationship between the process and the formation resistivity. This paper shows how the relationship used to interpret electrical well logs can be used to understand steamflood resistivity changes. Examples are presented of data from steamfloods in fields with different reservoir characteristics. Included is a typical heavy-oil steamflood (Kern River field) and a steamflood where fresh water is used for the steam generator feedwater (Elk Hills field). Because of differences in reservoir characteristics, changes in resistivity vary from reservoir to reservoir. The information presented include well logs taken before and after steamflooding and petrophysical measurements sufficient to determine the factors that controlled the resistivity changes in each field.

  4. Magnetic Fields via Polarimetry: Progress of Grain Alignment Theory

    E-Print Network [OSTI]

    A. Lazarian

    2002-08-28T23:59:59.000Z

    Most astrophysical systems, e.g. stellar winds, the diffuse interstellar medium, molecular clouds, are magnetized with magnetic fields that influence almost all of their properties. One of the most informative techniques of magnetic field studies is based on the use of starlight polarization and polarized emission arising from aligned dust. How reliable the interpretation of the polarization maps in terms of magnetic fields is the issue that the grain alignment theory addresses. Although grain alignment is a problem of half a century standing, recent progress achieved in the field makes us believe that we are approaching the solution of this mystery. I review basic physical processes involved in grain alignment and discuss the niches for different alignment mechanisms. I show why mechanisms that were favored for decades do not look so promising right now, while the radiative torque mechanism ignored for more than 20 years looks so attractive. I define the observational tests and outline the circumstances when grain alignment theory predicts that new yet untapped information of magnetic field structure is available through polarimetry. In particular, I touch upon mapping magnetic fields in circumstellar regions, interplanetary space and in comet comae.

  5. Near-field microscopy maps semiconductors Near-field microscopy maps semiconductors

    E-Print Network [OSTI]

    technology is new, the combination represents a potentially important advance in high-resolution thermography

  6. Full Moon Flux Mapping the 400m2 "Big Dish" at the

    E-Print Network [OSTI]

    flux mapping technique, has become a standard technique in many solar energy research institutes. Burgess, K. Lovegrove Centre for Sustainable Energy Systems The Australian National University Canberra, ACT 0200 AUSTRALIA E-mail: piya.siangsukone@anu.edu.au Abstract Videographic flux mapping of a lunar

  7. CONTROL THEORY AND FAST MARCHING TECHNIQUES FOR BRAIN CONNECTIVITY MAPPING

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Christophe Lenglet2 Jean-Philippe Pons2 Nicolas Wotawa2 Rachid Deriche2 Olivier Faugeras2 Stefano Soatto1 1 of these methods is their computational complexity since it is necessary to resort to Markov Chain Monte Carlo meth

  8. Evaluation of the Mercury Soil Mapping Geothermal Exploration Techniques |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania: Energy Resources(RECP) inEuricoOpen Energysolid earth

  9. Mapping the Nanoscale Landscape

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your Home and It'llMapping Particle Charges inMappingMapping

  10. Affine maps of density matrices

    E-Print Network [OSTI]

    Thomas F. Jordan

    2004-11-21T23:59:59.000Z

    For quantum systems described by finite matrices, linear and affine maps of matrices are shown to provide equivalent descriptions of evolution of density matrices for a subsystem caused by unitary Hamiltonian evolution in a larger system; an affine map can be replaced by a linear map, and a linear map can be replaced by an affine map. There may be significant advantage in using an affine map. The linear map is generally not completely positive, but the linear part of an equivalent affine map can be chosen to be completely positive and related in the simplest possible way to the unitary Hamiltonian evolution in the larger system.

  11. Use of geostatistic techniques to describe a reservoir to be submitted into a secondary recovery process field case: {open_quotes}Eocene B-Inferior/VLG-3659, Ceuta, Venezuela{close_quotes}

    SciTech Connect (OSTI)

    Hernandez, T.; Poquioma, W. [Maraven, S.A., Caracas (Venezuela)

    1997-08-01T23:59:59.000Z

    This study presents the results of an integrated reservoir study of the Eocene B-Inferior/VLG-3659, Area 7, Ceuta filed. This field located in the Maracaibo Lake in the western side of Venezuela. The objective was to evaluating the feasibility to implement a secondary recovery project by means of water flooding. Core information was used for this study (194 ft), PVT analysis, RFI, build-up and statistic`s pressure analysis, modem logs and production history data. Using geostatistical techniques (Kriging) it was defined a low uncertainty geological model that was validated by means of a black oil simulator (Eclipse). The results showed a good comparison of historical pressure of the reservoir against those obtained from the model, without the need of {open_quotes}history matching{close_quotes}. It means without modifying neither the initial rock properties nor reservoir fluids. The results of this study recommended drilling in two new locations, also the reactivation of four producing wells and water flooding under peripherical array by means of four injection wells, with the recovery of an additional 30.2 MMSTB. The economical evaluation shows an internal return rate of 31.4%.

  12. Denoising and Frequency Analysis of Noninvasive Magnetoencephalography Sensor Signals for Functional Brain Mapping

    E-Print Network [OSTI]

    Ukil, A

    2015-01-01T23:59:59.000Z

    Magnetoencephalography (MEG) is an important noninvasive, nonhazardous technology for functional brain mapping, measuring the magnetic fields due to the intracellular neuronal current flow in the brain. However, most often, the inherent level of noise in the MEG sensor data collection process is large enough to obscure the signal(s) of interest. In this paper, a denoising technique based on the wavelet transform and the multiresolution signal decomposition technique along with thresholding is presented, substantiated by application results. Thereafter, different frequency analysis are performed on the denoised MEG signals to identify the major frequencies of the brain oscillations present in the denoised signals. Time-frequency plots (spectrograms) of the denoised signals are also provided.

  13. Strain mapping with nm-scale resolution for the silicon-on-insulator generation of semiconductor devices by advanced electron microscopy

    SciTech Connect (OSTI)

    Cooper, David; Denneulin, Thibaud; Barnes, Jean-Paul; Hartmann, Jean-Michel; Hutin, Louis; Le Royer, Cyrille [CEA, LETI France MINATEC Campus, 17 rue des Martyrs, 38054 Grenoble Cedex 9 (France); Beche, Armand [CEA, LETI, and FEI France MINATEC Campus, 17 rue des Martyrs, 38054 Grenoble Cedex 9 (France); Rouviere, Jean-Luc [CEA, INAC, MINATEC Campus, 17 rue des Martyrs, 38054 Grenoble Cedex 9 (France)

    2012-12-15T23:59:59.000Z

    Strain engineering in the conduction channel is a cost effective method of boosting the performance in state-of-the-art semiconductor devices. However, given the small dimensions of these devices, it is difficult to quantitatively measure the strain with the required spatial resolution. Three different transmission electron microscopy techniques, high-angle annular dark field scanning transmission electron microscopy, dark field electron holography, and nanobeam electron diffraction have been applied to measure the strain in simple bulk and SOI calibration specimens. These techniques are then applied to different gate length SiGe SOI pFET devices in order to measure the strain in the conduction channel. For these devices, improved spatial resolution is required, and strain maps with spatial resolutions as good as 1 nm have been achieved. Finally, we discuss the relative advantages and disadvantages of using these three different techniques when used for strain measurement.

  14. Maps for currents and anomalies in noncommutative gauge theories

    SciTech Connect (OSTI)

    Banerjee, Rabin; Kumar, Kuldeep [S.N. Bose National Centre for Basic Sciences, JD Block, Sector 3, Salt Lake, Kolkata 700098 (India)

    2005-02-15T23:59:59.000Z

    We derive maps relating currents and their divergences in non-Abelian U(N) noncommutative gauge theory with the corresponding expressions in the ordinary (commutative) description. For the U(1) theory, in the slowly-varying-field approximation, these maps are also seen to connect the star-gauge-covariant anomaly in the noncommutative theory with the standard Adler-Bell-Jackiw anomaly in the commutative version. For arbitrary fields, derivative corrections to the maps are explicitly computed up to O({theta}{sup 2})

  15. Dating the Vinland Map

    ScienceCinema (OSTI)

    None

    2013-07-17T23:59:59.000Z

    Scientists from Brookhaven National Laboratory, the University of Arizona, and the Smithsonian Institution used carbon-dating technology to determine the age of a controversial parchment that might be the first-ever map of North America.

  16. Lab 4: Raster Data & Map Calculations C W G WilliCamp W.G. Williams

    E-Print Network [OSTI]

    Ramsey, R. Douglas

    · Some interesting properties: New_Grid = A + B A Map Algebra: Continuous Fields ­ Analysis represented leads to distinct patterns in the output map ­ The pattern of these combinations is of interest B New_Grid = A + B New_Grid = A * B Map Algebra: Sim

  17. Mappings From Models Presenting Topological Mass Mechanisms to Purely Topological Models

    SciTech Connect (OSTI)

    Amaral, R.L.P.G.; Costa, J.V. [Instituto de Fisica, Universidade Federal Fluminense, Niteroi (Brazil); Ventura, O.S. [Centro Federal de Educacao Tecnologica do Espirito Santo, Vitoria (Brazil); Centro Universitario de Vila Velha, Vila Velha - ES (Brazil); Uniest, Cariacica-ES (Brazil); Bouffon, L.O. [Centro Federal de Educacao Tecnologica do Espirito Santo, Vitoria (Brazil); Escola Superior de Ciencias da Santa Casa de Misericordia de Vitoria, Vitoria-ES (Brazil); Lemes, V.E.R. [Instituto de Fisica, Universidade do Estado do Rio de Janeiro, Rio de Janeiro - RJ (Brazil)

    2004-12-02T23:59:59.000Z

    We discuss a class of mappings between the fields of the Cremmer-Sherk and pure BF model in 4D. These mappings are established both with an iterative procedure as well as with an exact mapping procedure. Related equivalences in 5D and 3D are discussed.

  18. Characterizing Fractures in the Geysers Geothermal Field by Micro...

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

    application of our soft computing-based techniques, exploiting their anisotropic and fractal behavior that will help their identification and mapping. 6 | US DOE Geothermal...

  19. Blind and non-blind source detection in WMAP 5-year maps

    E-Print Network [OSTI]

    M. Massardi; M. López-Caniego; J. González-Nuevo; D. Herranz; G. De Zotti; J. L. Sanz

    2008-10-14T23:59:59.000Z

    We have analyzed the efficiency in source detection and flux density estimation of blind and non-blind detection techniques exploiting the MHW2 filter applied to the Wilkinson Microwave Anisotropy Probe (WMAP) 5-year maps. A comparison with the AT20G Bright Source Sample (Massardi et al. 2008), with a completeness limit of 0.5 Jy and accurate flux measurements at 20 GHz, close to the lowest frequency of WMAP maps, has allowed us to assess the completeness and the reliability of the samples detected with the two approaches, as well as the accuracy of flux and error estimates, and their variations across the sky. The uncertainties on flux estimates given by our procedure turned out to be about a factor of 2 lower than the rms differences with AT20G measurements, consistent with the smoothing of the fluctuation field yielded by map filtering. Flux estimates were found to be essentially unbiased except that, close to the detection limit, a substantial fraction of fluxes are found to be inflated by the contribution of underlying positive fluctuations. This is consistent with expectations for the Eddington bias associated to the true errors on flux density estimates. The blind and non-blind approaches are found to be complementary: each of them allows the detection of sources missed by the other. Combining results of the two methods on the WMAP 5-year maps we have expanded the non-blindly generated New Extragalactic WMAP Point Source (NEWPS) catalogue (Lopez-Caniego et al. 2007) that was based on WMAP 3-year maps. After having removed the probably spurious objects not identified with known radio sources, the new version of the NEWPS catalogue, NEWPS_5yr comprises 484 sources detected with a signal-to-noise ratio SNR>5.

  20. HSE 1 HSE 2 HSE 3 GE 1 GE 2 GE 3 Residual effects of Large Vessels in GE BOLD Differential Mapping of Ocular Dominance Columns

    E-Print Network [OSTI]

    HSE 1 HSE 2 HSE 3 GE 1 GE 2 GE 3 Residual effects of Large Vessels in GE BOLD Differential Mapping these techniques in humans. Previous human studies (4-6) instead used the conventional GE BOLD technique, combined and limitations of GE BOLD differential mapping as compared to HSE BOLD differential mapping of ocular dominance

  1. Velocity map imaging as a tool for gaining mechanistic insight from closed-loop control studies of molecular fragmentation

    SciTech Connect (OSTI)

    Jochim, Bethany; Averin, R.; Gregerson, Neal; Wells, E. [Department of Physics, Augustana College, Sioux Falls, South Dakota 57197 (United States); McKenna, J.; De, S.; Ray, D.; Zohrabi, M.; Carnes, K. D.; Ben-Itzhak, I. [J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506 (United States); Bergues, B. [Max Planck Institute of Quantum Optics, Hans-Kopfermann Strasse 1, D-85748 Garching (Germany); Kling, M. F. [J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506 (United States); Max Planck Institute of Quantum Optics, Hans-Kopfermann Strasse 1, D-85748 Garching (Germany)

    2011-04-15T23:59:59.000Z

    Strong-field closed-loop control schemes using shaped ultrafast laser pulses have been used to selectively fragment a variety of molecules in recent years. The resulting pulses are often complex and resist an easy mechanistic interpretation. We report on the use of velocity map imaging to study the dissociative ionization of CO molecules by optimally-shaped ultrafast laser pulses. Using this technique, a mechanism is identified for the optimized CO{sup +} {yields} C + O{sup +} dissociation, and some of the observed control over the CO{sup +} dissociation branching ratio is ascribed to an angular discrimination effect. Furthermore, we demonstrate that the acquisition of two-dimensional velocity map images is rapid enough to incorporate directly into the adaptive control loop.

  2. Magnetic fields, spots and weather in chemically peculiar stars

    E-Print Network [OSTI]

    O. Kochukhov

    2007-11-30T23:59:59.000Z

    New observational techniques and sophisticated modelling methods has led to dramatic breakthroughs in our understanding of the interplay between the surface magnetism, atomic diffusion and atmospheric dynamics in chemically peculiar stars. Magnetic Doppler images, constructed using spectropolarimetric observations of Ap stars in all four Stokes parameters, reveal the presence of small-scale field topologies. Abundance Doppler mapping has been perfected to the level where distributions of many different chemical elements can be deduced self-consistently for one star. The inferred chemical spot structures are diverse and do not always trace underlying magnetic field geometry. Moreover, horizontal chemical inhomogeneities are discovered in non-magnetic CP stars and evolving chemical spots are observed for the first time in the bright mercury-manganese star alpha And. These results show that in addition to magnetic fields, another important non-magnetic structure formation mechanism acts in CP stars.

  3. Maps and inverse maps in open quantum dynamics

    E-Print Network [OSTI]

    Thomas F. Jordan

    2008-07-08T23:59:59.000Z

    Two kinds of maps that describe evolution of states of a subsystem coming from dynamics described by a unitary operator for a larger system, maps defined for fixed mean values and maps defined for fixed correlations, are found to be quite different for the same unitary dynamics in the same situation in the larger system. An affine form is used for both kinds of maps to find necessary and sufficient conditions for inverse maps. All the different maps with the same homogeneous part in their affine forms have inverses if and only if the homogeneous part does. Some of these maps are completely positive; others are not, but the homogeneous part is always completely positive. The conditions for an inverse are the same for maps that are not completely positive as for maps that are. For maps defined for fixed mean values, the homogeneous part depends only on the unitary operator for the dynamics of the larger system, not on any state or mean values or correlations. Necessary and sufficient conditions for an inverse are stated several different ways: in terms of the maps of matrices, basis matrices, density matrices, or mean values. The inverse maps are generally not tied to the dynamics the way the maps forward are. A trace-preserving completely positive map that is unital can not have an inverse that is obtained from any dynamics described by any unitary operator for any states of a larger system.

  4. SYNOPTIC MAPPING OF CHROMOSPHERIC MAGNETIC FLUX

    SciTech Connect (OSTI)

    Jin, C. L. [Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China); Harvey, J. W.; Pietarila, A., E-mail: cljin@nao.cas.cn, E-mail: jharvey@nso.edu, E-mail: apietarila@nso.edu [National Solar Observatory, Tucson, AZ 85719 (United States)

    2013-03-10T23:59:59.000Z

    We used daily full-disk Ca II 854.2 nm magnetograms from the Synoptic Optical Long Term Investigations of the Sun (SOLIS) facility to study the chromospheric magnetic field from 2006 April through 2009 November. We determined and corrected previously unidentified zero offsets in the SOLIS magnetograms. By tracking the disk passages of stable unipolar regions, the measured net flux densities were found to systematically decrease from the disk center to the limb by a factor of about two. This decrease was modeled using a thin flux tube model with a difference in signal formation height between the center and limb sides. Comparison of photospheric and chromospheric observations shows that their differences are largely due to horizontal spreading of magnetic flux with increasing height. The north polar magnetic field decreased nearly linearly with time during our study period while the south polar field was nearly constant. We used the annual change in the viewing angle of the polar regions to estimate the radial and meridional components of the polar fields and found that the south polar fields were tilted away from the pole. Synoptic maps of the chromospheric radial flux density distribution were used as boundary conditions for extrapolation of the field from the chromosphere into the corona. A comparison of modeled and observed coronal hole boundaries and coronal streamer positions showed better agreement when using the chromospheric rather than the photospheric synoptic maps.

  5. Site Map - Pantex Plant

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > TheNuclearHomelandMultivariateSite Map Main Menu About the ALSSite Map

  6. Mapping the Nanoscale Landscape

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electronEnergy ManufacturingMapping the NanoscaleMapping

  7. Mapping the Nanoscale Landscape

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electronEnergy ManufacturingMapping theMapping the

  8. Mapping the Nanoscale Landscape

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electronEnergy ManufacturingMapping theMapping

  9. Mapping the Nanoscale Landscape

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your Home and It'llMapping Particle Charges inMapping

  10. New Mexico Geochronology Research Laboratory: Zuni-Bandera volcanic field road log

    SciTech Connect (OSTI)

    Laughlin, A.W.; Charles, R.; Reid, K.; White, C.

    1993-01-01T23:59:59.000Z

    This field conference was designed to assemble a group of Quaternary researchers to examine the possibility of using the Zuni-Bandera volcanic field in western New Mexico as a test area for evaluating and calibrating various Quaternary dating techniques. The Zuni-Bandera volcanic-field is comprised of a large number of basaltic lava flows ranging in age from about 700 to 3 ka. Older basalts are present in the Mount Taylor volcanic field to the north. Geologic mapping has been completed for a large portion of the Zuni-Bandera volcanic field and a number of geochronological investigations have been initiated in the area. While amending this conference, please consider how you might bring your expertise and capabilities to bear on solving the many problem in Quaternary geochronology.

  11. New Mexico Geochronology Research Laboratory: Zuni-Bandera volcanic field road log

    SciTech Connect (OSTI)

    Laughlin, A.W.; Charles, R.; Reid, K.; White, C.

    1993-04-01T23:59:59.000Z

    This field conference was designed to assemble a group of Quaternary researchers to examine the possibility of using the Zuni-Bandera volcanic field in western New Mexico as a test area for evaluating and calibrating various Quaternary dating techniques. The Zuni-Bandera volcanic-field is comprised of a large number of basaltic lava flows ranging in age from about 700 to 3 ka. Older basalts are present in the Mount Taylor volcanic field to the north. Geologic mapping has been completed for a large portion of the Zuni-Bandera volcanic field and a number of geochronological investigations have been initiated in the area. While amending this conference, please consider how you might bring your expertise and capabilities to bear on solving the many problem in Quaternary geochronology.

  12. Speed Map for Autonomous Rovers over Rough Terrain

    E-Print Network [OSTI]

    Loh, Jonathan Edau

    2012-01-01T23:59:59.000Z

    Grid Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . .considered obstacles [27] Grid Map showing Tile Size, Cellspeed map. It also covers grid maps and terrain roughness,

  13. Continuous Profiling of Magnetotelluric Fields

    E-Print Network [OSTI]

    Verdin, C.T.

    2009-01-01T23:59:59.000Z

    those employed in seismic data interpretation under the nameseismic nature, these techniques power implicit in the at least two decades of continued field and interpretation

  14. Historical Maps Online

    E-Print Network [OSTI]

    Rumsey, David Y.

    2005-01-31T23:59:59.000Z

    geospatial data to see change over time. The online map collection can be accessed over the Internet from search engines, library catalogs, GIS databases and many other entry points. Rumsey continues to add new content to the online collection and develops...

  15. Mapping the Competitiveness

    E-Print Network [OSTI]

    Levinson, David M.

    Alberta Oil & Gas Companies Source: InnovationAtlas #12;Mapping the Midwest's Future: Regional Innovation,000 11 GDP Growth Rate 2.0% 117 Life Expectancy 81 14 Urbanization 81% 47 Source: World Bank Top exports: Crude Oil & Bitumen $81.0B Motor Vehicles & Parts $68.1B Consumer Goods $52.1B Intermediate Metal

  16. MINERAL FACILITIES MAPPING PROJECT

    E-Print Network [OSTI]

    Gilbes, Fernando

    MINERAL FACILITIES MAPPING PROJECT Yadira Soto-Viruet Supervisor: David Menzie, Yolanda Fong-Sam Minerals Information Team (MIT) USGS Summer Internship 2009 U.S. Department of the Interior U.S. Geological Minerals Information Team (MIT): Annually reports on the minerals facilities of more than 180 countries

  17. Servant dictionary battery, map

    E-Print Network [OSTI]

    Rosenthal, Jeffrey S.

    Attic *** book teachest Servant dictionary scarf [11] Winery demijohn battery, map AuntLair X Cupboard1 wireless Potting gloves aunt[3] Storage dumbwaiter wrench OldFurn parcel, med whistle Over] EastAnnex battery[4] Cupboard2 [2] mask DeadEnd rucksack AlisonWriting [16] TinyBalcony [17] gold key

  18. battery, map parcel, med

    E-Print Network [OSTI]

    Rosenthal, Jeffrey S.

    Attic *** book teachest Servant dictionary scarf [11] Winery demijohn battery, map AuntLair X Cupboard1 wireless Potting gloves aunt[3] Storage dumbwaiter wrench OldFurn parcel, med whistle Over] EastAnnex battery[4] Cupboard2 [2] mask DeadEnd rucksack AlisonWriting [16] TinyBalcony [17] gold key

  19. Rapid mapping tool : an ArcMap extension /

    SciTech Connect (OSTI)

    Linger, S. P. (Steve P.); Rich, P. M. (Paul M.); Walther, D. (Douglas); Witkowski, M. S. (Marc S.); Jones, M. A. (Marcia A.); Khalsa, H. S. (Hari S.)

    2002-01-01T23:59:59.000Z

    Cartographic production laboratories produce large volumes of maps for diverse customers. Turnaround time and consistency are key concerns. The Rapid Mapping Tool is an ArcMap based tool that enables rapid creation of maps to meet customer needs. This tool was constructed using VB/VBA, ArcObjects, and ArcGIS templates. The core capability of ArcMap is extended for custom map production by storing specifications associated with a map or template in a companion XML document. These specifications include settings and preferences used to create custom maps. The tool was developed as a component of an enterprise GIS, which enables spatial data management and delivery using ArcSDE, ArcIMS, Oracle, and a web-based request tracking system.

  20. On the Power of Nonlinear Mappings in Switching Map Systems

    E-Print Network [OSTI]

    Sato, Yuzuru

    On the Power of Nonlinear Mappings in Switching Map Systems Yuzuru Sato 1 # , Makoto Taiji 2 operations would be allowed. It is also expected that the computational power of switching map systems stronger computational power than classical Turing machines. On the other hand, these dynamical systems

  1. Mapping your data: Integrating data into a GIS

    E-Print Network [OSTI]

    Houser, Rhonda

    2006-12-12T23:59:59.000Z

    handouts to be copied: o GIS Investigation sheet (p. 7 ? 17); note see answers p. 6 o Definitions (p. 18) o Appendix A: TIGER 2000 CFCC Codes (p. 19 ? 20) o Student Answer sheet (p. 21) Standards & Objectives National Geography Standards (Adapted from... Values? ? Change the ?Value Field? to ?CFCC? ? Click the ?Add All Values? button ArcLessons Template, Copyright ? 2005 ESRI. All rights reserved. Mapping Your Data, Copyright ? 2006 Rhonda Houser. 10 Mapping Your Data ? Read the descriptions...

  2. Power Maps in Algebra and

    E-Print Network [OSTI]

    Thévenaz, Jacques

    Power Maps in Algebra and Topology Kathryn Hess Preface The case of commutative algebras The Hochschild complex of a twisting cochain Power maps on the Hochschild complex Topological relevance Power Compostela, 17 September 2008 #12;Power Maps in Algebra and Topology Kathryn Hess Preface The case

  3. DOCUMENT MAPS FOR COMPETENCE MANAGEMENT

    E-Print Network [OSTI]

    Honkela, Timo

    DOCUMENT MAPS FOR COMPETENCE MANAGEMENT Timo Honkela Helsinki University of Technology Neural area of the document maps, i.e., competence management. The document map approach has approved The WEBSOM is a method for analyzing and visualizing large document col- lections. In the WEBSOM method

  4. Mapping Biomass Distribution Potential

    E-Print Network [OSTI]

    Schaetzel, Michael

    2010-11-18T23:59:59.000Z

    Mapping Biomass Distribution Potential Michael Schaetzel Undergraduate ? Environmental Studies ? University of Kansas L O C A T S I O N BIOMASS ENERGY POTENTIAL o According to DOE, Biomass has the potential to provide 14% of... the nation’s power o Currently 1% of national power supply o Carbon neutral? combustion of biomass is part of the natural carbon cycle o Improved crop residue management has potential to benefit environment, producers, and economy Biomass Btu...

  5. CORTICAL BRAIN SURFACE MAPPING FOR STUDYING PARTIAL VOLUME EFFECTS IN BRAIN FDG PET IMAGES

    E-Print Network [OSTI]

    Thompson, Paul

    CORTICAL BRAIN SURFACE MAPPING FOR STUDYING PARTIAL VOLUME EFFECTS IN BRAIN FDG PET IMAGES Hillary PET images is confounded by tissue atrophy and partial volume effects, especially in patients-based cortical brain surface mapping technique to account for partial volume effects on brain FDG PET images

  6. Using Satellite Radar Data to Map and Monitor Variations in Great Lakes Ice Cover

    E-Print Network [OSTI]

    , for image-to-image classification, a library of backscatter signatures of different ice types is needed) classification technique has shown that different ice types in the ice cover can be identified and mapped for use with calibrated SAR imagery. III. SAR ICE CLASSIFICATION AND MAPPING During the 1997 winter season

  7. ORIGINAL RESEARCH PAPER Quantitative mapping of active mud volcanism at the western

    E-Print Network [OSTI]

    Nicolas, Chamot-Rooke

    to produce a synthetic and objective map of recent mud flows covering a 640 · 700 km2 area, which representsORIGINAL RESEARCH PAPER Quantitative mapping of active mud volcanism at the western Mediterranean model for the origin for Mediterranean Ridge mud volcanism. Image analysis techniques are used

  8. A NOVEL MAP PROJECTION USING AN ARTIFICIAL NEURAL NETWORK

    E-Print Network [OSTI]

    Skupin, André

    A NOVEL MAP PROJECTION USING AN ARTIFICIAL NEURAL NETWORK André Skupin Department of Geography is an unsupervised, artificial neural network (ANN) technique. While it should not be mistaken as imitating neural network approach in two ways. First, the paper presents a cartographically informed method

  9. Tactile robotic mapping of unknown surfaces: An application to oil well exploration

    E-Print Network [OSTI]

    Mazzini, Francesco

    World oil demand and advanced oil recovery techniques have made it economically attractive to rehabilitate previously abandoned oil wells. This requires relatively fast mapping of the shape and location of the down-hole ...

  10. The Application of Fluorescence Lifetime Imaging Microscopy to Quantitatively Map Mixing and Temperature in Microfluidic Systems 

    E-Print Network [OSTI]

    Graham, Emmelyn M

    2008-01-01T23:59:59.000Z

    The technique of Fluorescence Lifetime Imaging Microscopy (FLIM) has been employed to quantitatively and spatially map the fluid composition and temperature within microfluidic systems. A molecular probe with a ...

  11. The theta-exact Seiberg-Witten maps at the e3 order

    E-Print Network [OSTI]

    Trampetic, J

    2015-01-01T23:59:59.000Z

    We study two distinct theta-exact Seiberg-Witten maps of the gauge parameter, gauge field and the gauge field strengths in the noncommutative U(1) quantum field theory and define ambiguities between them. The measures of ambiguities/freedom for the gauge field strength are given in terms of deformation parameters (kappa g) and (kappa-prime g), for two, and three photon fields, i.e. up to the e3 order, respectively. We discuss field strength as a function of two theta-exact Seiberg-Witten maps, and the (kappa g,kappa-prime g)-deformation parameter space.

  12. Scattering map for two black holes

    E-Print Network [OSTI]

    Alessandro P. S. de Moura; Patricio S. Letelier

    1999-10-25T23:59:59.000Z

    We study the motion of light in the gravitational field of two Schwarzschild black holes, making the approximation that they are far apart, so that the motion of light rays in the neighborhood of one black hole can be considered to be the result of the action of each black hole separately. Using this approximation, the dynamics is reduced to a 2-dimensional map, which we study both numerically and analytically. The map is found to be chaotic, with a fractal basin boundary separating the possible outcomes of the orbits (escape or falling into one of the black holes). In the limit of large separation distances, the basin boundary becomes a self-similar Cantor set, and we find that the box-counting dimension decays slowly with the separation distance, following a logarithmic decay law.

  13. ORISE: Site Map

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > TheNuclear Astrophysics One of theDedicationOak CSEPPInterestedSite Map

  14. Maps | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas »ofMarketingSmartManufacturing InnovationofMappingAbout

  15. Site Map - Cyclotron Institute

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > TheNuclearHomelandMultivariateSite Map Main Menu About the ALS

  16. Site map | Jefferson Lab

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > TheNuclearHomelandMultivariateSite Map Main Menu About the

  17. Southwestern Power System Map

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > TheNuclearHomelandMultivariateSite MapCrime Witness Program Evaluate

  18. Historical Network Maps

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh School football High SchoolBundles toHiring-TP59.01 C5;44 Network Maps

  19. Mapping the Nanoscale Landscape

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electronEnergy ManufacturingMapping the Nanoscale

  20. Mapping the Nanoscale Landscape

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electronEnergy ManufacturingMapping the

  1. Maps & Directions | ORNL

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your Home and It'llMapping Particle Charges

  2. Temperature Maps and Data

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40Coal StocksProvedFeet)ThousandNumber andCrudeTemperature Maps and Data

  3. Temperature Maps and Data

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40Coal StocksProvedFeet)ThousandNumber andCrudeTemperature Maps and

  4. Defect mapping system

    DOE Patents [OSTI]

    Sopori, B.L.

    1995-04-11T23:59:59.000Z

    Apparatus for detecting and mapping defects in the surfaces of polycrystalline materials in a manner that distinguishes dislocation pits from grain boundaries includes a laser for illuminating a wide spot on the surface of the material, a light integrating sphere with apertures for capturing light scattered by etched dislocation pits in an intermediate range away from specular reflection while allowing light scattered by etched grain boundaries in a near range from specular reflection to pass through, and optical detection devices for detecting and measuring intensities of the respective intermediate scattered light and near specular scattered light. A center blocking aperture or filter can be used to screen out specular reflected light, which would be reflected by nondefect portions of the polycrystalline material surface. An X-Y translation stage for mounting the polycrystalline material and signal processing and computer equipment accommodate rastor mapping, recording, and displaying of respective dislocation and grain boundary defect densities. A special etch procedure is included, which prepares the polycrystalline material surface to produce distinguishable intermediate and near specular light scattering in patterns that have statistical relevance to the dislocation and grain boundary defect densities. 20 figures.

  5. A reservoir management study of a mature oil field

    E-Print Network [OSTI]

    Peruzzi, Tave

    1995-01-01T23:59:59.000Z

    to other mature oil fields to make sound engineering and business decisions. I interpreted the geological structure and stratigaphy of the salt dome oil field. Structure, isopach and cross-sectional maps were constructed. Depositional environments...

  6. Using electrical impedance tomography to map subsurface hydraulic conductivity

    DOE Patents [OSTI]

    Berryman, James G. (Danville, CA); Daily, William D. (Livermore, CA); Ramirez, Abelardo L. (Pleasanton, CA); Roberts, Jeffery J. (Livermore, CA)

    2000-01-01T23:59:59.000Z

    The use of Electrical Impedance Tomography (EIT) to map subsurface hydraulic conductivity. EIT can be used to map hydraulic conductivity in the subsurface where measurements of both amplitude and phase are made. Hydraulic conductivity depends on at least two parameters: porosity and a length scale parameter. Electrical Resistance Tomography (ERT) measures and maps electrical conductivity (which can be related to porosity) in three dimensions. By introducing phase measurements along with amplitude, the desired additional measurement of a pertinent length scale can be achieved. Hydraulic conductivity controls the ability to flush unwanted fluid contaminants from the surface. Thus inexpensive maps of hydraulic conductivity would improve planning strategies for subsequent remediation efforts. Fluid permeability is also of importance for oil field exploitation and thus detailed knowledge of fluid permeability distribution in three-dimension (3-D) would be a great boon to petroleum reservoir analysts.

  7. On the harmonic map equation

    E-Print Network [OSTI]

    S. C. Tiwari

    2007-06-09T23:59:59.000Z

    A generalized harmonic map equation is presented based on the proposed action functional in the Weyl space (PLA, 135, 315, 1989).

  8. Energy identity of approximate biharmonic maps to Riemannian manifolds and its application

    E-Print Network [OSTI]

    Wang, Changyou

    2011-01-01T23:59:59.000Z

    We consider in dimension four weakly convergent sequences of approximate biharmonic maps to a Riemannian manifold with bi-tension fields bounded in $L^p$ for $p>\\frac43$. We prove an energy identity that accounts for the loss of hessian energies by the sum of hessian energies over finitely many nontrivial biharmonic maps on $\\mathbb R^4$. As a corollary, we obtain an energy identity for the heat flow of biharmonic maps at time infinity.

  9. Widget:GasMap | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTri GlobalJump to:WestwoodCreatePageFormFieldsDisplayToggle Jump to:GasMap

  10. The Metro Map Problem Existing metro maps, produced by professional

    E-Print Network [OSTI]

    Hong,Seokhee

    optimization methods to find a minimal energy state 20 Force directed method for metro map visualization artists, are excellent examples of network visualization Can we produce good metro maps automatically Virtual Environments Case Study - Stock Market MS-Guidelines MS-Process MS-Taxonomy Software Engineering

  11. The Momotombo Geothermal Field, Nicaragua: Exploration and development case history study

    SciTech Connect (OSTI)

    None

    1982-07-01T23:59:59.000Z

    This case history discusses the exploration methods used at the Momotombo Geothermal Field in western Nicaragua, and evaluates their contributions to the development of the geothermal field models. Subsequent reservoir engineering has not been synthesized or evaluated. A geothermal exploration program was started in Nicaragua in 1966 to discover and delineate potential geothermal reservoirs in western Nicaragua. Exploration began at the Momotombo field in 1970 using geological, geochemical, and geophysical methods. A regional study of thermal manifestations was undertaken and the area on the southern flank of Volcan Momotombo was chosen for more detailed investigation. Subsequent exploration by various consultants produced a number of geotechnical reports on the geology, geophysics, and geochemistry of the field as well as describing production well drilling. Geological investigations at Momotombo included photogeology, field mapping, binocular microscope examination of cuttings, and drillhole correlations. Among the geophysical techniques used to investigate the field sub-structure were: Schlumberger and electromagnetic soundings, dipole mapping and audio-magnetotelluric surveys, gravity and magnetic measurements, frequency domain soundings, self-potential surveys, and subsurface temperature determinations. The geochemical program analyzed the thermal fluids of the surface and in the wells. This report presents the description and results of exploration methods used during the investigative stages of the Momotombo Geothermal Field. A conceptual model of the geothermal field was drawn from the information available at each exploration phase. The exploration methods have been evaluated with respect to their contributions to the understanding of the field and their utilization in planning further development. Our principal finding is that data developed at each stage were not sufficiently integrated to guide further work at the field, causing inefficient use of resources.

  12. Noncommutative Theories, Seiberg-Witten Map, and Gravity

    SciTech Connect (OSTI)

    Rivelles, Victor O. [Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 66318, 05315-970, Sao Paulo, SP (Brazil)

    2005-04-04T23:59:59.000Z

    In this paper we review the connection between noncommutative field theories and gravity. When the noncommutativity is induced by the Moyal product we can use the Seiberg-Witten map in order to deal with ordinary fields. We then show that the effect of the noncommutativity is the same as a field dependent gravitational background. The gravitational background is that of a gravitational plane wave and the coupling is charge dependent. Uncharged fields couple more strongly than the charged ones. Deviations from the usual dispersion relations are discussed and we show that they are also charge dependent.

  13. Assessor Training Assessment Techniques

    E-Print Network [OSTI]

    NVLAP Assessor Training Assessment Techniques: Communication Skills and Conducting an Assessment listener ·Knowledgeable Assessor Training 2009: Assessment Techniques: Communication Skills & Conducting, truthful, sincere, discrete · Diplomatic · Decisive · Selfreliant Assessor Training 2009: Assessment

  14. Continuous profiling of magnetotelluric fields

    SciTech Connect (OSTI)

    Verdin, C.T.

    1991-05-01T23:59:59.000Z

    The magnetotelluric (MT) method of mapping ground electrical conductivity is traditionally based on measurement of the surface impedance at widely spaced stations to infer models of the subsurface through a suitable pseudo 1-D inverse or with linearized least-squares inversion for 2- or 3-D geoelectric media. It is well known that small near-surface inhomogeneities can produce spatial discontinuities in the measured electric fields over a wide frequency range and may consequently bias the impedance on a very local scale. Inadequate station spacing effectively aliases the electric field measurements and results in distortions that cannot be removed in subsequent processing or modelling. In order to fully exploit the benefits of magnetotellurics in complex geological environments, closely spaced measurements must be used routinely. This thesis entertains an analysis of MT data taken along continuous profiles and is a first step that will allow more encompassing 2-D sampling techniques to become viable in the years to come. The developments presented here are to a large extent motivated by the physical insight gained from low-contrast solutions to the forward MT problem. These solutions describe the relationship between a perturbation in the electrical conductivity of the subsurface and the ensuing perturbation of the MT response as the output of a linear system. Albeit strictly accurate in a limited subset of practical exploration problems, the linearized solutions allow one to pursue a model independent study of the response characteristics of MT data. In fact, these solutions yield simple expressions for 1-,2-, and 3-D resistivity models which are here examined in progressive sequence.

  15. Chimera states in coupled sine-circle map lattices

    E-Print Network [OSTI]

    Chitra R Nayak; Neelima Gupte

    2010-11-24T23:59:59.000Z

    Systems of coupled oscillators have been seen to exhibit chimera states, i.e. states where the system splits into two groups where one group is phase locked and the other is phase randomized. In this work, we report the existence of chimera states in a system of two interacting populations of sine circle maps. This system also exhibits the clustered chimera behavior seen earlier in delay coupled systems. Rich spatio-temporal behavior is seen in different regimes of the phase diagram.We carry out a detailed analysis of the stability regimes and map out the phase diagram using numerical and analytic techniques.

  16. Trace metal mapping by laser-induced breakdown spectroscopy

    SciTech Connect (OSTI)

    Kaiser, Jozef [ORNL; Novotny, Dr. Karel [Masaryk University; Hrdlicka, A [Brno University of Technology, Czech Republic; Malina, R [Brno University of Technology, Czech Republic; Hartl, M [Brno University of Technology, Czech Republic; Kizek, R [Mendel University of Brno; Adam, V [Mendel University of Brno

    2012-01-01T23:59:59.000Z

    Abstract: Laser-Induced Breakdown Spectroscopy (LIBS) is a sensitive optical technique capable of fast multi-elemental analysis of solid, gaseous and liquid samples. The potential applications of lasers for spectrochemical analysis were developed shortly after its invention; however the massive development of LIBS is connected with the availability of powerful pulsed laser sources. Since the late 80s of 20th century LIBS dominated the analytical atomic spectroscopy scene and its application are developed continuously. Here we review the utilization of LIBS for trace elements mapping in different matrices. The main emphasis is on trace metal mapping in biological samples.

  17. Seiberg-Witten maps and commutator anomalies in noncommutative electrodynamics

    SciTech Connect (OSTI)

    Banerjee, Rabin; Kumar, Kuldeep [S.N. Bose National Centre for Basic Sciences, JD Block, Sector 3, Salt Lake, Kolkata 700098 (India)

    2005-10-15T23:59:59.000Z

    We exploit the Seiberg-Witten maps for fields and currents in a U(1) gauge theory relating the noncommutative and commutative (usual) descriptions to obtain the O({theta}) structure of the commutator anomalies in noncommutative electrodynamics. These commutators involve the (covariant) current-current algebra and the (covariant) current-field algebra. We also establish the compatibility of the anomalous commutators with the noncommutative covariant anomaly through the use of certain consistency conditions derived here.

  18. Sub millimeter coregistration of functional maps across imaging sessions

    E-Print Network [OSTI]

    Boyer, Edmond

    for longitudinal studies of structural and functional brain plasticity. It is now feasible to collect functional brain maps with spatial resolutions of ~100 m in ultra-high field systems. While these data sets of coregistration across imaging sessions (or within, in the presence of head motion) is limited by the accuracy

  19. Remarks on the second-order Seiberg-Witten maps

    SciTech Connect (OSTI)

    Trampetic, Josip [Theoretical Physics Division, Rudjer Boskovic Institute, Zagreb (Croatia); Wohlgenannt, Michael [Erwin Schroedinger International Institute for Mathematical Physics, Boltzmanngasse 9, 1090 Vienna (Austria)

    2007-12-15T23:59:59.000Z

    In this brief report, we discuss the Seiberg-Witten maps up to the second order in the noncommutative parameter {theta}. They add to the recently published solutions in [A. Alboteanu, T. Ohl, and R. Rueckl, Phys. Rev. D 76, 105018 (2007).]. Expressions for the vector, fermion, and Higgs fields are given explicitly.

  20. HCEI Road Map 2011 Edition

    E-Print Network [OSTI]

    HCEI Road Map 2011 Edition #12;2 www.hawaiicleanenergyinitiative.org The Hawaii Clean Energy of the recommendations laid out in this Road Map will be undertaken by one or many of the stakeholders already at work on the electrical grid, along with increasing end use efficiency will mean that demand patterns and corresponding

  1. ALGORITHMS FOR CONSTRUCTING COMPARATIVE MAPS

    E-Print Network [OSTI]

    Kleinberg, Jon

    (i.e. that the segments are homeologous). The construction of comparative maps between the genomes and phylogenetic relationships among species as well as fundamental principles of genome evolution. Comparative maps allow us to use structural and functional information about one genome to make predictions about

  2. Flood Inundation Mapping

    E-Print Network [OSTI]

    Pearson, Wendy

    2009-11-18T23:59:59.000Z

    . Validate these with historic data. “Water Predictions for Life Decisions” Page 11 2. Analyses • GIS Work – Inundation Library Creation – Use FEMA approved techniques to transform the hydraulic model water surface profiles into shapefiles representing... inundation area and rasters representing depth of flow. – Edit to remove unconnected polygons (ponds). – Shapefiles need attributes for water surface elevations. – Levees and bridges represented to NWS standards – Collect metatdata records for all GIS files...

  3. On the detection of point sources in Planck LFI 70 GHz CMB maps based on cleaned K-map

    E-Print Network [OSTI]

    Khachatryan, H G; Poghosyan, E; Yegoryan, G

    2015-01-01T23:59:59.000Z

    We use the Planck LFI 70GHz data to further probe point source detection technique in the sky maps of the cosmic microwave background (CMB) radiation. The method developed by Tegmark et al. for foreground reduced maps and the Kolmogorov parameter as the descriptor are adopted for the analysis of Planck satellite CMB temperature data. Most of the detected points coincide with point sources already revealed by other methods. However, we have also found 9 source candidates for which still no counterparts are known.

  4. A method to estimate the effect of deformable image registration uncertainties on daily dose mapping

    SciTech Connect (OSTI)

    Murphy, Martin J.; Salguero, Francisco J.; Siebers, Jeffrey V.; Staub, David; Vaman, Constantin [Department of Radiation Oncology, Virginia Commonwealth University, Richmond Virginia 23298 (United States)

    2012-02-15T23:59:59.000Z

    Purpose: To develop a statistical sampling procedure for spatially-correlated uncertainties in deformable image registration and then use it to demonstrate their effect on daily dose mapping. Methods: Sequential daily CT studies are acquired to map anatomical variations prior to fractionated external beam radiotherapy. The CTs are deformably registered to the planning CT to obtain displacement vector fields (DVFs). The DVFs are used to accumulate the dose delivered each day onto the planning CT. Each DVF has spatially-correlated uncertainties associated with it. Principal components analysis (PCA) is applied to measured DVF error maps to produce decorrelated principal component modes of the errors. The modes are sampled independently and reconstructed to produce synthetic registration error maps. The synthetic error maps are convolved with dose mapped via deformable registration to model the resulting uncertainty in the dose mapping. The results are compared to the dose mapping uncertainty that would result from uncorrelated DVF errors that vary randomly from voxel to voxel. Results: The error sampling method is shown to produce synthetic DVF error maps that are statistically indistinguishable from the observed error maps. Spatially-correlated DVF uncertainties modeled by our procedure produce patterns of dose mapping error that are different from that due to randomly distributed uncertainties. Conclusions: Deformable image registration uncertainties have complex spatial distributions. The authors have developed and tested a method to decorrelate the spatial uncertainties and make statistical samples of highly correlated error maps. The sample error maps can be used to investigate the effect of DVF uncertainties on daily dose mapping via deformable image registration. An initial demonstration of this methodology shows that dose mapping uncertainties can be sensitive to spatial patterns in the DVF uncertainties.

  5. Geometrical investigation of the kinetic evolution of the magnetic field in a periodic flux rope

    SciTech Connect (OSTI)

    Restante, A. L.; Lapenta, G. [Afdeling Plasma-astrofysica, Departement Wiskunde, KULeuven, University of Leuven, Leuven (Belgium)] [Afdeling Plasma-astrofysica, Departement Wiskunde, KULeuven, University of Leuven, Leuven (Belgium); Markidis, S. [High Performance Computing and Visualization (HPCViz) Department, KTH Royal Institute of Technology, Stockholm (Sweden)] [High Performance Computing and Visualization (HPCViz) Department, KTH Royal Institute of Technology, Stockholm (Sweden); Intrator, T. [Los Alamos National Laboratory, M.S. E526, Los Alamos, New Mexico 87545 (United States)] [Los Alamos National Laboratory, M.S. E526, Los Alamos, New Mexico 87545 (United States)

    2013-08-15T23:59:59.000Z

    Flux ropes are bundles of magnetic field wrapped around an axis. Many laboratory, space, and astrophysics processes can be represented using this idealized concept. Here, a massively parallel 3D kinetic simulation of a periodic flux rope undergoing the kink instability is studied. The focus is on the topology of the magnetic field and its geometric structures. The analysis considers various techniques such as Poincaré maps and the quasi-separatrix layer (QSL). These are used to highlight regions with expansion or compression and changes in the connectivity of magnetic field lines and consequently to outline regions where heating and current may be generated due to magnetic reconnection. The present study is, to our knowledge, the first QSL analysis of a fully kinetic 3D particle in cell simulation and focuses the existing QSL method of analysis to periodic systems.

  6. An Alternate Career Choice for the Geography Major: Map, GIS, or Geographic Information Librarianship

    E-Print Network [OSTI]

    Weimer, Kathy

    2007-11-03T23:59:59.000Z

    The field of Map, GIS and Geographic Information Librarianship has expanded over the past decade. This expansion is due in part to the addition of GIS dataset collections in many university libraries, specialized government or corporate information...

  7. An Alternate Career Choice for the Geography Major: Map, GIS, or Geographic Information Librarianship 

    E-Print Network [OSTI]

    Weimer, Kathy

    2007-11-03T23:59:59.000Z

    The field of Map, GIS and Geographic Information Librarianship has expanded over the past decade. This expansion is due in part to the addition of GIS dataset collections in many university libraries, specialized government or corporate information...

  8. Generation of Gaussian Density Fields

    E-Print Network [OSTI]

    Hugo Martel

    2005-07-15T23:59:59.000Z

    This document describes analytical and numerical techniques for the generation of Gaussian density fields, which represent cosmological density perturbations. The mathematical techniques involved in the generation of density harmonics in k-space, the filtering of the density fields, and the normalization of the power spectrum to the measured temperature fluctuations of the Cosmic Microwave Background, are presented in details. These techniques are well-known amongst experts, but the current literature lacks a formal description. I hope that this technical report will prove useful to new researchers moving into this field, sparing them the task of reinventing the wheel.

  9. Mappings of Conjugation of Quaternion Algebra

    E-Print Network [OSTI]

    Aleks Kleyn

    2012-06-10T23:59:59.000Z

    In the paper I considered mappings of conjugation of quaternion algebra. I proved the theorem that there is unique expansion of R-linear mapping of quaternion algebra relative to the given set of mappings of conjugation.

  10. Sense of Place Evoked by Interactive Maps

    E-Print Network [OSTI]

    Go, Hanyoung

    2012-07-16T23:59:59.000Z

    orientation, spatial imagery, and spatial presence. Responses from 211 students were analyzed using structural equation modeling (SEM). The study results showed that map interfaces influence human perceptions of map interactivity. Perceived map interactivity...

  11. Computerized fluid movement mapping and 3-D visualization

    SciTech Connect (OSTI)

    Al-Awami, A.A.; Poore, J.W. [Saudi Aramco, Dhahran (Saudi Arabia); Sizer, J.P.

    1995-11-01T23:59:59.000Z

    Most of the fieldwide fluid movement monitoring techniques under utilize available computer resources. This paper discusses an approach reservoir management engineers use to monitor fluid movement in reservoirs with a multitude of wells. This approach allows the engineer to maintain up-to-date fluid movement studies and incorporate the latest information from data acquisition programs into the day to day decision-making process. The approach uses several in-house database applications and makes extensive use of commercially available software products to generate and visualize cross-sections, maps, and 3-d models. This paper reviews the computerized procedures to create cross-sections that display the current fluid contacts overlaying the lithology. It also reviews the mapping procedures nd presents examples of water encroachment maps by layer at specific time periods. 3-D geologic modeling software greatly enhances the visualization of the reservoir. This software can also be used to interpret and model fluid movement, given the appropriate engineering constraints.

  12. MSc Environmental Mapping A rigorous training in the analysis and

    E-Print Network [OSTI]

    Jones, Peter JS

    fields from monitoring and modelling vegetation and carbon stocks, hydrological and hydraulic modelling and projection systems, data acquisition, the electromagnetic spectrum from optical to microwave, interactions and monitoring, environmental GIS techniques, surveying, spatial data processing, coastal change and quantitative

  13. Noncommutative Field Theories and Gravity

    E-Print Network [OSTI]

    Victor O. Rivelles

    2003-02-21T23:59:59.000Z

    We show that after the Seiberg-Witten map is performed the action for noncommutative field theories can be regarded as a coupling to a field dependent gravitational background. This gravitational background depends only on the gauge field. Charged and uncharged fields couple to different backgrounds and we find that uncharged fields couple more strongly than the charged ones. We also show that the background is that of a gravitational plane wave. A massless particle in this background has a velocity which differs from the velocity of light and we find that the deviation is larger in the uncharged case. This shows that noncommutative field theories can be seen as ordinary theories in a gravitational background produced by the gauge field with a charge dependent gravitational coupling.

  14. Mapping the March to Methodical Materials

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

    Mapping the March to Methodical Materials Mapping the March to Methodical Materials Computational Chemistry Provides Proof of Popular MOF's Reactivity September 18, 2014 | Tags:...

  15. MAPPING HVAC SYSTEMS FOR SIMULATION IN ENERGYPLUS

    E-Print Network [OSTI]

    Basarkar, Mangesh

    2013-01-01T23:59:59.000Z

    LBNL-XXXXX MAPPING HVAC SYSTEMS FOR SIMULATION IN ENERGYPLUSof California. MAPPING HVAC SYSTEMS FOR SIMULATION INpresent a conventional view of HVAC systems to the user, and

  16. FTN4 OPTIMIZATION TECHNIQUES.

    E-Print Network [OSTI]

    Authors, Various

    2012-01-01T23:59:59.000Z

    3 1st Edition FTN4 OPTIMIZATION TECHNIQUES November 1979O. INTRODUCTION 1. COt1PILER OPTIMIZATIONS 2. SOURCE CODEcode. Most of these optimizations decrease central processor

  17. Superhydrophobic Materials Technology-PVC Bonding Techniques

    SciTech Connect (OSTI)

    Hunter, Scott R. [Oak Ridge National Laboratory; Efird, Marty [VeloxFlow, LLC

    2013-05-03T23:59:59.000Z

    The purpose of the technology maturation project was to develop an enhanced application technique for applying diatomaceous earth with pinned polysiloxane oil to PVC pipes and materials. The oil infiltration technique is applied as a spray of diluted oil in a solvent onto the superhydrophobic diatomaceous earth substrate. This makes the surface take on the following characteristics: • wet?cleanable • anti?biofouling • waterproof • anti?corrosion. The project involved obtaining input and supplies from VeloxFlow and the development of successful techniques that would quickly result in a commercial license agreement with VeloxFlow and other companies that use PVC materials in a variety of other fields of use.

  18. Density equalizing map projections (cartograms) in public health applications

    SciTech Connect (OSTI)

    Merrill, D.W.

    1998-05-01T23:59:59.000Z

    In studying geographic disease distributions, one normally compares rates among arbitrarily defined geographic subareas (e.g. census tracts), thereby sacrificing some of the geographic detail of the original data. The sparser the data, the larger the subareas must be in order to calculate stable rates. This dilemma is avoided with the technique of Density Equalizing Map Projections (DEMP){copyright}. Boundaries of geographic subregions are adjusted to equalize population density over the entire study area. Case locations plotted on the transformed map should have a uniform distribution if the underlying disease risk is constant. On the transformed map, the statistical analysis of the observed distribution is greatly simplified. Even for sparse distributions, the statistical significance of a supposed disease cluster can be calculated with validity. The DEMP algorithm was applied to a data set previously analyzed with conventional techniques; namely, 401 childhood cancer cases in four counties of California. The distribution of cases on the transformed map was analyzed visually and statistically. To check the validity of the method, the identical analysis was performed on 401 artificial cases randomly generated under the assumption of uniform risk. No statistically significant evidence for geographic non-uniformity of rates was found, in agreement with the original analysis performed by the California Department of Health Services.

  19. Field Mapping At Roosevelt Hot Springs Geothermal Area (Ward...

    Open Energy Info (EERE)

    Area. References S. H. Ward, W. T. Parry, W. P. Nash, W. R. Sill, K. L. Cook, R. B. Smith, D. S. Chapman, F. H. Brown, J. A. Whelan, J. R. Bowman (1978) A Summary of the...

  20. Microseismicity and 3-D Mapping of an Active Geothermal Field...

    Open Energy Info (EERE)

    during drilling. Authors Catherine Lewis Kenedi, Eylon Shalev, Alan Lucas and Peter Malin Conference Proceedings World Geothermal Congress 2010; Bali, Indonesia; 042010 Published...

  1. Total field aeromagnetic map of the Raft River known Geothermal...

    Open Energy Info (EERE)

    IDAHO; KGRA; FEDERAL REGION X; GEOPHYSICAL SURVEYS; NORTH AMERICA; RESOURCES; SURVEYS; USA Authors Geological Survey, Denver and CO (USA) Published DOE Information Bridge, 11...

  2. Field Mapping At Coso Geothermal Area (2010) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV JumpFederal HighwayFernley,EnergyOpennot indicated

  3. Field Mapping At Lualualei Valley Area (Thomas, 1986) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV JumpFederalInformation Jump to:Information

  4. Field Mapping At Marysville Mt Area (Blackwell) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV JumpFederalInformation Jump

  5. Field Mapping At Raft River Geothermal Area (1977) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BVEnergy Information Shevenell, Et

  6. Field Mapping At Raft River Geothermal Area (1980) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BVEnergy Information Shevenell, EtInformation

  7. Field Mapping At Raft River Geothermal Area (1990) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BVEnergy Information Shevenell,

  8. Field Mapping At Raft River Geothermal Area (1993) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BVEnergy Information Shevenell,Information the

  9. Field Mapping At Blue Mountain Geothermal Area (Fairbank Engineering Ltd,

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania:57427°,Ferry County, Washington:Energy Information2003)

  10. Field Mapping At Cascades Region (Ingebritsen & Mariner, 2010) | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania:57427°,Ferry County, Washington:Energy

  11. Field Mapping At Chena Geothermal Area (Kolker, 2008) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania:57427°,Ferry County, Washington:EnergyInformation 3 -

  12. Field Mapping At Colrado Area (DOE GTP) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania:57427°,Ferry County, Washington:EnergyInformation

  13. Field Mapping At Valles Caldera - Sulphur Springs Geothermal Area (Bailey,

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania:57427°,Ferry County,Glass Buttes Area (DOETheEt Al., 1969)

  14. Field Mapping (Curewitz & Karson, 1997) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV JumpFederal HighwayFernley, Nevada:Controls

  15. Field Mapping (Monaster And Coolbaugh, 2007) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV JumpFederal HighwayFernley,

  16. Field Mapping At Coso Geothermal Area (1978) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV JumpFederal HighwayFernley,EnergyOpen Energy| -

  17. Field Mapping At Coso Geothermal Area (1980) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV JumpFederal HighwayFernley,EnergyOpen Energy| -areal

  18. Field Mapping At Coso Geothermal Area (1999) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV JumpFederal HighwayFernley,EnergyOpen Energy|

  19. Field Mapping At Coso Geothermal Area (2006) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV JumpFederal HighwayFernley,EnergyOpen

  20. Protein folding using contact maps

    E-Print Network [OSTI]

    Michele Vendruscolo; Eytan Domany

    1999-01-21T23:59:59.000Z

    We present the development of the idea to use dynamics in the space of contact maps as a computational approach to the protein folding problem. We first introduce two important technical ingredients, the reconstruction of a three dimensional conformation from a contact map and the Monte Carlo dynamics in contact map space. We then discuss two approximations to the free energy of the contact maps and a method to derive energy parameters based on perceptron learning. Finally we present results, first for predictions based on threading and then for energy minimization of crambin and of a set of 6 immunoglobulins. The main result is that we proved that the two simple approximations we studied for the free energy are not suitable for protein folding. Perspectives are discussed in the last section.

  1. A map of the universe

    SciTech Connect (OSTI)

    Gott III, J. Richard; Juric, Mario; Schlegel, David; Hoyle, Fiona; Vogeley, Michael; Tegmark, Max; Bahcall, Neta; Brinkmann, Jon

    2003-10-20T23:59:59.000Z

    We have produced a new conformal map of the universe illustrating recent discoveries, ranging from Kuiper belt objects in the Solar system, to the galaxies and quasars from the Sloan Digital Sky Survey. This map projection, based on the logarithm map of the complex plane, preserves shapes locally, and yet is able to display the entire range of astronomical scales from the Earth s neighborhood to the cosmic microwave background. The conformal nature of the projection, preserving shapes locally, may be of particular use for analyzing large scale structure. Prominent in the map is a Sloan Great Wall of galaxies 1.37 billion light years long, 80 percent longer than the Great Wall discovered by Geller and Huchra and therefore the largest observed structure in the universe.

  2. MAPPING CLIMATE CHANGE EXPOSURES, VULNERABILITIES,

    E-Print Network [OSTI]

    MAPPING CLIMATE CHANGE EXPOSURES, VULNERABILITIES, AND ADAPTATION TO PUBLIC HEALTH RISKS's California Climate Change Center JULY 2012 CEC5002012041 Prepared for: California Energy Commission of California. #12; ii ABSTRACT This study reviewed first available frameworks for climate change adaptation

  3. Fermilab Map Instructions

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist. CategoryFebruaryFebruaryInThe Julia Set:SmallLifeRobLegalThis

  4. Fermilab Map Legend

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist. CategoryFebruaryFebruaryInThe Julia Set:SmallLifeRobLegalThisskip

  5. Magnetic Field Measurement System

    SciTech Connect (OSTI)

    Kulesza, Joe; Johnson, Eric; Lyndaker, Aaron; Deyhim, Alex; Waterman, Dave; Blomqvist, K. Ingvar [Advanced Design Consulting USA, 126 Ridge Road, P.O. Box 187, Lansing, NY 14882 (United States); Dunn, Jonathan Hunter [MAX-lab, SE-221 00 Lund (Sweden)

    2007-01-19T23:59:59.000Z

    A magnetic field measurement system was designed, built and installed at MAX Lab, Sweden for the purpose of characterizing the magnetic field produced by Insertion Devices (see Figure 1). The measurement system consists of a large granite beam roughly 2 feet square and 14 feet long that has been polished beyond laboratory grade for flatness and straightness. The granite precision coupled with the design of the carriage yielded minimum position deviations as measured at the probe tip. The Hall probe data collection and compensation technique allows exceptional resolution and range while taking data on the fly to programmable sample spacing. Additional flip coil provides field integral data.

  6. Contamination Control Techniques

    SciTech Connect (OSTI)

    EBY, J.L.

    2000-05-16T23:59:59.000Z

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

  7. Mapping two-way grids onto free-form surfaces P. Winslow S. Pellegrino S.B. Sharma

    E-Print Network [OSTI]

    Pellegrino, Sergio

    Mapping two-way grids onto free-form surfaces P. Winslow S. Pellegrino S.B. Sharma Department, however existing techniques focus on relatively simple geometrical rules and algorithms to map a grid onto in the Millennium Dome, London . Use of a grid structure, consisting of a lattice of rods (see Figure 1) may be more

  8. Local control of area-preserving maps

    E-Print Network [OSTI]

    Cristel Chandre; Michel Vittot; Guido Ciraolo

    2008-09-01T23:59:59.000Z

    We present a method of control of chaos in area-preserving maps. This method gives an explicit expression of a control term which is added to a given area-preserving map. The resulting controlled map which is a small and suitable modification of the original map, is again area-preserving and has an invariant curve whose equation is explicitly known.

  9. Autodesk MapGuide Working with Resources

    E-Print Network [OSTI]

    Ahmad, Sajjad

    Autodesk MapGuide® Enterprise Working with Resources Autodesk MapGuide® Enterprise software has a powerful API (application programming interface) for manipulating resources such as feature and drawing sources, maps, layers, and layouts. Using the Resource Service API, MapGuide-based applications can

  10. Nonlinear Data Transformation with Diffusion Map

    E-Print Network [OSTI]

    ) Others: Laplacian eigenmaps, Hessian eigenmaps, LTSA We apply the diffusion map (Coifman & Lafon 2006

  11. Hierarchical Infrastructure for Internet Mapping Services

    E-Print Network [OSTI]

    Samet, Hanan

    locally. We investigate this opportunity for further improvement in providing the client with map data access to remote spatial databases adopted by numerous web-based mapping service vendors (e.g., MapChapter 1 Hierarchical Infrastructure for Internet Mapping Services Frantisek Brabec and Hanan

  12. Photometry Results for the Globular Clusters M10 and M12: Extinction Maps, Color-Magnitude Diagrams, and Variable Star Candidates

    E-Print Network [OSTI]

    Kaspar von Braun; Mario Mateo; Kristin Chiboucas; Alex Athey; Denise Hurley-Keller

    2002-08-13T23:59:59.000Z

    We report on photometry results of the equatorial globular clusters (GCs) M10 and M12. These two clusters are part of our sample of GCs which we are probing for the existence of photometrically varying eclipsing binary stars. During the search for binaries in M10 and M12, we discovered the signature of differential reddening across the fields of the clusters. The effect is stronger for M10 than for M12. Using our previously described dereddening technique, we create differential extinction maps for the clusters which dramatically improve the appearance of the color-magnitude diagrams (CMDs). Comparison of our maps with the dust emissivity maps of Schlegel, Finkbeiner, & Davis (SFD) shows good agreement in terms of spatial extinction features. Several methods of adding an E_{V-I} zero point to our differential maps are presented of which isochrone fitting proved to be the most successful. Our E_{V-I} values fall within the range of widely varying literature values. More specifically, our reddening zero point estimate for M12 agrees well with the SFD estimate, whereas the one for M10 falls below the SFD value. Our search for variable stars in the clusters produced a total of five variables: three in M10 and two in M12. The M10 variables include a binary system of the W Ursa Majoris (W UMa) type, a background RR Lyrae star, and an SX Phoenicis pulsator, none of which is physically associated with M10. M12's variables are two W UMa binaries, one of which is most likely a member of the cluster. We present the phased photometry lightcurves for the variable stars, estimate their distances, and show their locations in the fields and the CMDs of the GCs.

  13. META-LEARNING Concepts and Techniques

    E-Print Network [OSTI]

    Vilalta, Ricardo

    .g., types of example distributions) under which a learning strategy is most appropriate. From a practicalChapter 1 META-LEARNING Concepts and Techniques Ricardo Vilalta University of Houston Christophe Giraud-Carrier ELCA Informatique SA Pavel Brazdil University of Porto Abstract The field of meta-learning

  14. A technique to derive improved proper motions for Kepler objects of interest

    SciTech Connect (OSTI)

    Benedict, G. Fritz [McDonald Observatory, University of Texas, Austin, TX 78712 (United States); Tanner, Angelle M. [Department of Physics and Astronomy, Mississippi State University, Starkville, MS 39762 (United States); Cargile, Phillip A. [Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235 (United States); Ciardi, David R., E-mail: fritz@astro.as.utexas.edu [NASA Exoplanet Science Institute, Caltech, Pasadena, CA 91125 (United States)

    2014-12-01T23:59:59.000Z

    We outline an approach yielding proper motions with higher precision than exists in present catalogs for a sample of stars in the Kepler field. To increase proper-motion precision, we combine first-moment centroids of Kepler pixel data from a single season with existing catalog positions and proper motions. We use this astrometry to produce improved reduced-proper-motion diagrams, analogous to a Hertzsprung-Russell (H-R) diagram, for stars identified as Kepler objects of interest. The more precise the relative proper motions, the better the discrimination between stellar luminosity classes. Using UCAC4 and PPMXL epoch 2000 positions (and proper motions from those catalogs as quasi-Bayesian priors), astrometry for a single test Channel (21) and Season (0) spanning 2 yr yields proper motions with an average per-coordinate proper-motion error of 1.0 mas yr{sup –1}, which is over a factor of three better than existing catalogs. We apply a mapping between a reduced-proper-motion diagram and an H-R diagram, both constructed using Hubble Space Telescope parallaxes and proper motions, to estimate Kepler object of interest K-band absolute magnitudes. The techniques discussed apply to any future small-field astrometry as well as to the rest of the Kepler field.

  15. Report of the Fourth International Workshop on human X chromosome mapping 1993

    SciTech Connect (OSTI)

    Schlessinger, D.; Mandel, J.L.; Monaco, A.P.; Nelson, D.L.; Willard, H.F. [eds.

    1993-12-31T23:59:59.000Z

    Vigorous interactive efforts by the X chromosome community have led to accelerated mapping in the last six months. Seventy-five participants from 12 countries around the globe contributed progress reports to the Fourth International X Chromosome Workshop, at St. Louis, MO, May 9-12, 1993. It became clear that well over half the chromosome is now covered by YAC contigs that are being extended, verified, and aligned by their content of STSs and other markers placed by cytogenetic or linkage mapping techniques. The major aim of the workshop was to assemble the consensus map that appears in this report, summarizing both consensus order and YAC contig information.

  16. BrainMap `95 workshop

    SciTech Connect (OSTI)

    NONE

    1995-12-31T23:59:59.000Z

    The fourth annual BrainMap workshop was held at La Mansion del Rio Hotel in San Antonio December 3--4, 1995. The conference title was ``Human Brain Mapping and Modeling.`` The meeting was attended by 137 registered participants and 30 observers from 82 institutions representing 12 countries. The meeting focused on the technical issues associated with brain mapping and modeling. A total of 23 papers were presented covering the following topics: spatial normalization and registration; functional image analysis; metanalysis and modeling; and new horizons in biological databases. The full program with abstracts was available on the Research Imaging Center`s web site. A book will be published by John Wiley and Sons prior to the end of 1998.

  17. How do I display the Map of Wind Farms csv coordinates in ArcMap...

    Open Energy Info (EERE)

    display the Map of Wind Farms csv coordinates in ArcMap software? Home > Groups > Geospatial I downloaded the Map of Wind Farms data as a .csv from http:en.openei.orgwiki...

  18. How do I display the Map of Wind Farms csv coordinates in ArcMap...

    Open Energy Info (EERE)

    do I display the Map of Wind Farms csv coordinates in ArcMap software? Home > Groups > Geospatial I downloaded the Map of Wind Farms data as a .csv from http:en.openei.orgwiki...

  19. Field fracturing multi-sites project. Annual report, August 1, 1995--July 31, 1996

    SciTech Connect (OSTI)

    NONE

    1996-12-31T23:59:59.000Z

    The objective of the Field Fracturing Multi-Sites Project (M-Site) is to conduct experiments to definitively determine hydraulic fracture dimensions using remote well and treatment well diagnostic techniques. In addition, experiments are to be conducted to provide data that will resolve significant unknowns with regard to hydraulic fracture modeling, fracture fluid rheology and fracture treatment design. These experiments will be supported by a well-characterized subsurface environment, as well as surface facilities and equipment conducive to acquiring high-quality data. The primary Project goal is to develop a fully characterized, tight reservoir-typical, field-scale hydraulic fracturing test site to diagnose, characterize, and test hydraulic fracturing technology and performance. It is anticipated that the research work being conducted by the multi-disciplinary team of GRI and DOE contractors will lead to the development of a commercial fracture mapping tool/service.

  20. Stratigraphic framework and coal resources of the Upper Cretaceous Blackhawk Formation in the Convulsion Canyon and Wash Rock Canyon areas of the Wasatch Plateau coal field, Salina 30' x 60' quadrangle, Sevier and Emery Counties, Utah

    SciTech Connect (OSTI)

    Sanchez, J.D.; Blanchard, L.F.; August, L.L.

    1983-01-01T23:59:59.000Z

    The map and accompanying sections describe the stratigraphy and distribution of coal beds in the Wesatch Plateau coal field. (ACR)

  1. Permeability enhancement using explosive techniques

    SciTech Connect (OSTI)

    Adams, T.F.; Schmidt, S.C.; Carter, W.J.

    1980-01-01T23:59:59.000Z

    In situ recovery methods for many of our hydrocarbon and mineral resources depend on the ability to create or enhance permeability in the resource bed to allow uniform and predictable flow. To meet this need, a new branch of geomechanics devoted to computer prediction of explosive rock breakage and permeability enhancement has developed. The computer is used to solve the nonlinear equations of compressible flow, with the explosive behavior and constitutive properties of the medium providing the initial/boundary conditions and material response. Once the resulting computational tool has been verified and calibrated with appropriate large-scale field tests, it can be used to develop and optimize commercially useful explosive techniques for in situ resource recovery.

  2. A physical map of the papaya genome with integrated genetic map and genome sequence

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    genetic map and genome sequence Qingyi Yu 1 , Eric Tong 1 ,assist whole genome shotgun sequence assembly. Results: Thethe genetic map and genome sequence using BAC end sequences

  3. Compensation Techniques in Accelerator Physics

    SciTech Connect (OSTI)

    Hisham Kamal Sayed

    2011-05-31T23:59:59.000Z

    Accelerator physics is one of the most diverse multidisciplinary fields of physics, wherein the dynamics of particle beams is studied. It takes more than the understanding of basic electromagnetic interactions to be able to predict the beam dynamics, and to be able to develop new techniques to produce, maintain, and deliver high quality beams for different applications. In this work, some basic theory regarding particle beam dynamics in accelerators will be presented. This basic theory, along with applying state of the art techniques in beam dynamics will be used in this dissertation to study and solve accelerator physics problems. Two problems involving compensation are studied in the context of the MEIC (Medium Energy Electron Ion Collider) project at Jefferson Laboratory. Several chromaticity (the energy dependence of the particle tune) compensation methods are evaluated numerically and deployed in a figure eight ring designed for the electrons in the collider. Furthermore, transverse coupling optics have been developed to compensate the coupling introduced by the spin rotators in the MEIC electron ring design.

  4. February 2011 Mapping the power

    E-Print Network [OSTI]

    Farrell, Anthony P.

    February 2011 5 Mapping the power of sunshine 8 Aboriginal portal emphasizes video 10 The value or less) must be signed and include an address and phone number for verification. Submit letters to campus By Jody Jacob these compounds could potentially be controlled. "Using lavender as our test model

  5. Digital Soil Mapping: Interactions with

    E-Print Network [OSTI]

    Grunwald, Sabine

    Chapter 21 Digital Soil Mapping: Interactions with and Applications for Hydropedology J.A. Thompson,1, * S. Roecker,2 S. Grunwald3 and P.R. Owens4 ABSTRACT Spatial information on soils, particularly hydrologic and hydromorphic soil properties, is used to understand and assess soil water retention, flooding

  6. GIS Mapping Technician Prince George

    E-Print Network [OSTI]

    Northern British Columbia, University of

    initiatives through data input, manipulation, and quality control as well as map production. A skilled for setting stumpage rates at levels consistent with forest product markets. BCTS has divided the province apportionment by planning, developing, auctioning and then reforesting those areas from which auctioned timber

  7. Quantum process tomography of unitary and near-unitary maps

    E-Print Network [OSTI]

    Charles H. Baldwin; Amir Kalev; Ivan H. Deutsch

    2014-04-22T23:59:59.000Z

    We study quantum process tomography given the prior information that the map is a unitary or close to a unitary process. We show that a unitary map on a $d$-level system is completely characterized by a minimal set of $d^2{+}d$ elements associated with a collection of POVMs, in contrast to the $d^4{-}d^2$ elements required for a general completely positive trace-preserving map. To achieve this lower bound, one must probe the map with a particular set of $d$ pure states. We further compare the performance of different compressed sensing algorithms used to reconstruct a near-unitary process from such data. We find that when we have accurate prior information, an appropriate compressed sensing method reduces the required data needed for high-fidelity estimation, and different estimators applied to the same data are sensitive to different types of noise. Compressed sensing techniques can therefore be used both as indicators of error models and to validate the use of the prior assumptions.

  8. Scaling self-organizing maps to model large cortical networks

    E-Print Network [OSTI]

    2004-01-01T23:59:59.000Z

    Self-organizing computational models with specific intracortical connections can explain many functional features of visual cortex, such as topographic orientation and ocular dominance maps. However, due to their computational requirements, it is difficult to use such detailed models to study large-scale phenomena like object segmentation and binding, object recognition, tilt illusions, optic flow, and fovea periphery interaction. This paper introduces two techniques that make large simulations practical. First, a set of general linear scaling equations for the RF-LISSOM self-organizing model is derived and shown to result in quantitatively equivalent maps over a wide range of simulation sizes. This capability makes it possible to debug small simulations and then scale them up to larger simulations only when needed. The scaling equations also facilitate the comparison of biological maps and parameters between individuals and species with different brain region sizes. Second, the equations are combined into a new growing map method called GLISSOM, which dramatically reduces the memory and computational requirements of large self-organizing networks. With GLISSOM it should be possible to simulate all of human V1 at the single-column level using existing supercomputers, making detailed computational study of large-scale phenomena possible.

  9. Stratigraphic statistical curvature analysis techniques

    SciTech Connect (OSTI)

    Bengtson, C.A.; Ziagos, J.P.

    1987-05-01T23:59:59.000Z

    SCAT applies statistical techniques to dipmeter data to identify patterns of bulk curvature, determine transverse and longitudinal structural directions, and reconstruct cross sections and contour maps. STRAT-SCAT applies the same concepts to geometric interpretation of multistoried unimodal, bimodal, or trough-type cross-bedding and also to seismic stratigraphy-scale stratigraphic structures. Structural dip, which comprises the bulk of dipmeter data, is related to beds that (statistically) were deposited with horizontal attitudes; stratigraphic dip is related to beds that were deposited with preferentially oriented nonhorizontal attitudes or to beds that assumed such attitudes because of differential compaction. Stratigraphic dip generates local zones of departure from structural dip on special SCAT plots. The RMS (root-mean-square) of apparent structural dip is greatest in the (structural) T-direction and least in the perpendicular L-direction; the RMS of stratigraphic dip (measured with respect to structural dip) is greatest in the stratigraphic T*-direction and least in the stratigraphic L*-direction. Multistoried, cross-bedding appears on T*-plots as local zones of either greater scatter or statistically significant departure of stratigraphic median dip from structural dip. In contrast, the L*-plot (except for trough-type cross-bedding) is sensitive to cross-bedding. Seismic stratigraphy-scale depositional sequences are identified on Mercator dip versus azimuth plots and polar tangent plots as secondary cylindrical-fold patterns imposed on global structural patterns. Progradational sequences generate local cycloid-type patterns on T*-plots, and compactional sequences generate local cycloid-type patterns on T*-plots, and compactional sequences generate local half-cusp patterns. Both features, however, show only structural dip on L*-plots.

  10. Cropland Field Monitoring: MMV Page 1 Montana Cropland Enrolled Farm Fields Carbon Sequestration Field Sampling, Measurement, Monitoring, and Verification: Application of Visible-Near Infrared Diffuse Reflectance Spectroscopy (VNIR) and Laser-induced Breakdown Spectroscopy (LIBS)

    SciTech Connect (OSTI)

    Lee Spangler; Ross Bricklemyer; David Brown

    2012-03-15T23:59:59.000Z

    There is growing need for rapid, accurate, and inexpensive methods to measure, and verify soil organic carbon (SOC) change for national greenhouse gas accounting and the development of a soil carbon trading market. Laboratory based soil characterization typically requires significant soil processing, which is time and resource intensive. This severely limits application for large-region soil characterization. Thus, development of rapid and accurate methods for characterizing soils are needed to map soil properties for precision agriculture applications, improve regional and global soil carbon (C) stock and flux estimates and efficiently map sub-surface metal contamination, among others. The greatest gains for efficient soil characterization will come from collecting soil data in situ, thus minimizing soil sample transportation, processing, and lab-based measurement costs. Visible and near-infrared diffuse reflectance spectroscopy (VisNIR) and laser-induced breakdown spectroscopy (LIBS) are two complementary, yet fundamentally different spectroscopic techniques that have the potential to meet this need. These sensors have the potential to be mounted on a soil penetrometer and deployed for rapid soil profile characterization at field and landscape scales. Details of sensor interaction, efficient data management, and appropriate statistical analysis techniques for model calibrations are first needed. In situ or on-the-go VisNIR spectroscopy has been proposed as a rapid and inexpensive tool for intensively mapping soil texture and organic carbon (SOC). While lab-based VisNIR has been established as a viable technique for estimating various soil properties, few experiments have compared the predictive accuracy of on-the-go and lab-based VisNIR. Eight north central Montana wheat fields were intensively interrogated using on-the-go and lab-based VisNIR. Lab-based spectral data consistently provided more accurate predictions than on-the-go data. However, neither in situ nor lab-based spectroscopy yielded even semi-quantitative SOC predictions. There was little SOC variability to explain across the eight fields, and on-the-go VisNIR was not able to capture the subtle SOC variability in these Montana soils. With more variation in soil clay content compared to SOC, both lab and on-the-go VisNIR showed better explanatory power. There are several potential explanations for poor on-the-go predictive accuracy: soil heterogeneity, field moisture, consistent sample presentation, and a difference between the spatial support of on-the-go measurements and soil samples collected for laboratory analyses. Though the current configuration of a commercially available on-the-go VisNIR system allows for rapid field scanning, on-the-go soil processing (i.e. drying, crushing, and sieving) could improve soil carbon predictions. Laser-induced breakdown spectroscopy (LIBS) is an emerging elemental analysis technology with the potential to provide rapid, accurate and precise analysis of soil constituents, such as carbon, in situ across landscapes. The research team evaluated the accuracy of LIBS for measuring soil profile carbon in field-moist, intact soil cores simulating conditions that might be encountered by a probe-mounted LIBS instrument measuring soil profile carbon in situ. Over the course of three experiments, more than120 intact soil cores from eight north central Montana wheat fields and the Washington State University (WSU) Cook Agronomy Farm near Pullman, WA were interrogated with LIBS for rapid total carbon (TC), inorganic carbon (IC), and SOC determination. Partial least squares regression models were derived and independently validated at field- and regional scales. Researchers obtained the best LIBS validation predictions for IC followed by TC and SOC. Laser-induced breakdown spectroscopy is fundamentally an elemental analysis technique, yet LIBS PLS2 models appeared to discriminate IC from TC. Regression coefficients from initial models suggested a reliance upon stoichiometric relationships between carbon (247.8 nm) and other elements

  11. USE OF ADVANCED DATA PROCESSING TECHNIQUES IN THE IMAGING OF...

    Open Energy Info (EERE)

    OF THE COSO GEOTHERMAL FIELD Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: USE OF ADVANCED DATA PROCESSING TECHNIQUES IN THE IMAGING...

  12. Physical fields and Clifford algebras II. Neutrino field

    E-Print Network [OSTI]

    Vadim V. Varlamov

    1998-02-24T23:59:59.000Z

    The neutrino field is considered in the framework of a complex Clifford algebra $\\C_3\\cong\\C_2\\oplus\\stackrel{\\ast}{\\C}_2$. The factor-algebras ${}^{\\epsilon}\\C_2$ and ${}^{\\epsilon}\\stackrel{\\ast}{\\C}_2$, which are obtained by means of homomorphic mappings $\\C_3\\to\\C_2$ and $\\C_3\\to\\stackrel{\\ast}{\\C}_2$, are identified with the neutrino and antineutrino fields, respectively. In this framework we have natural explanation for absence of right-handed neutrino and left-handed antineutrino.

  13. FACILITIES INSTRUCTIONS, STANDARDS, & TECHNIQUES

    E-Print Network [OSTI]

    Laughlin, Robert B.

    to the repair of hydraulic turbine runners and large pump impellers. Reclamation operates and maintains a wideFACILITIES INSTRUCTIONS, STANDARDS, & TECHNIQUES VOLUME 2-5 TURBINE REPAIR Internet Version variety of reaction and impulse turbines as well as axial flow, mixed flow, radial flow pumps and pump

  14. Galaxy Redshifts: Improved Techniques

    E-Print Network [OSTI]

    A. F. Heavens

    1993-05-26T23:59:59.000Z

    This paper analyses the effects of random noise in determining errors and confidence levels for galaxy redshifts obtained by cross-correlation techniques. The main finding is that confidence levels have previously been overestimated, and errors inaccurately calculated in certain applications. New formul\\ae\\ are presented.

  15. The attribute measurement technique

    SciTech Connect (OSTI)

    Macarthur, Duncan W [Los Alamos National Laboratory; Langner, Diana [Los Alamos National Laboratory; Smith, Morag [Los Alamos National Laboratory; Thron, Jonathan [Los Alamos National Laboratory; Razinkov, Sergey [RFNC-VNIIEF; Livke, Alexander [RFNC-VNIIEF

    2010-01-01T23:59:59.000Z

    Any verification measurement performed on potentially classified nuclear material must satisfy two seemingly contradictory constraints. First and foremost, no classified information can be released. At the same time, the monitoring party must have confidence in the veracity of the measurement. An information barrier (IB) is included in the measurement system to protect the potentially classified information while allowing sufficient information transfer to occur for the monitoring party to gain confidence that the material being measured is consistent with the host's declarations, concerning that material. The attribute measurement technique incorporates an IB and addresses both concerns by measuring several attributes of the nuclear material and displaying unclassified results through green (indicating that the material does possess the specified attribute) and red (indicating that the material does not possess the specified attribute) lights. The attribute measurement technique has been implemented in the AVNG, an attribute measuring system described in other presentations at this conference. In this presentation, we will discuss four techniques used in the AVNG: (1) the 1B, (2) the attribute measurement technique, (3) the use of open and secure modes to increase confidence in the displayed results, and (4) the joint design as a method for addressing both host and monitor needs.

  16. GARDIENNAGE Help Desk technique

    E-Print Network [OSTI]

    Nesterov, Yurii

    --> Relais vers Garde GTPW ASCENSEURS 1ère impulsion Dispatching UCL (Système EBI Honeywell GTPW) Dispatching UCL --> SECURITAS LEW ALARMES CDC (Système EBI -Enterprise Building Integrator -Honeywell GTPW téléphonique ) TECHNIQUES CDC (Système EBI Honeywell GTPW) GTPW (Heures ouvrables) CDC (En dehors des heures

  17. Query Optimization Techniques Class Hierarchies

    E-Print Network [OSTI]

    Mannheim, Universität

    Query Optimization Techniques Exploiting Class Hierarchies Sophie Cluet 1 Guido Moerkotte 2 1 INRIA Since the introduction of object base management systems (OBMS), many query optimization techniques tailored for object query languages have been proposed. They adapt known optimization techniques

  18. Building Science-Based Climate Maps - Building America Top Innovation...

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

    Science-Based Climate Maps - Building America Top Innovation Building Science-Based Climate Maps - Building America Top Innovation Photo showing climate zone maps based on the IECC...

  19. Gravity Survey of the Carson Sink - Data and Maps - Datasets...

    Open Energy Info (EERE)

    Relationship Dataset Dataset extent Map data OpenStreetMap contributors Tiles by MapQuest License Creative Commons Attribution 4.0 Open Data Author University of...

  20. Fourier-based magnetic induction tomography for mapping resistivity

    SciTech Connect (OSTI)

    Puwal, Steffan; Roth, Bradley J. [Department of Physics, Oakland University, Rochester, Michigan 48309 (United States)

    2011-01-01T23:59:59.000Z

    Magnetic induction tomography is used as an experimental tool for mapping the passive electromagnetic properties of conductors, with the potential for imaging biological tissues. Our numerical approach to solving the inverse problem is to obtain a Fourier expansion of the resistivity and the stream functions of the magnetic fields and eddy current density. Thus, we are able to solve the inverse problem of determining the resistivity from the applied and measured magnetic fields for a two-dimensional conducting plane. When we add noise to the measured magnetic field, we find the fidelity of the measured to the true resistivity is quite robust for increasing levels of noise and increasing distances of the applied and measured field coils from the conducting plane, when properly filtered. We conclude that Fourier methods provide a reliable alternative for solving the inverse problem.

  1. SNL-CRCV Map-580 to CRCV

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

    to be badged Sandia National Laboratories 7011 East Avenue Livermore, CA 94551 Parking Tesla Road CRF Parking 904 906 From OaklandSan Francisco Map Not to Scale Map Not to Scale...

  2. A genetic linkage map of buffelgrass

    E-Print Network [OSTI]

    Jessup, Russell William

    1999-01-01T23:59:59.000Z

    Details of apomixis at levels of the gene, chromosome, and genome can be obtained with a comprehensive restriction fragment length polymorphism (RFLP) linkage map. The objective of this research was construction of a genetic linkage map...

  3. Optimizing MapReduce for Multicore Architectures

    E-Print Network [OSTI]

    Kaashoek, Frans

    2010-05-02T23:59:59.000Z

    MapReduce is a programming model for data-parallel programs originally intended for data centers. MapReduce simplifies parallel programming, hiding synchronization and task management. These properties make it a promising ...

  4. Space-Time Cross-Mapping and Application to Wave Scattering

    E-Print Network [OSTI]

    Salem, Mohamed A

    2015-01-01T23:59:59.000Z

    Causality creates an asymmetry between space and time, even though the wave equation treats them on equal footing. In this work, we leverage this asymmetry to construct a cross-mapping between space and time. This cross-mapping is applied to simplify scattering in space-varying media, by eliminating the infinite reflections between interfaces. The method is shown to transform the implicit transfer matrix method into an explicit method for the analysis of electromagnetic field scattering by a stratified medium.

  5. Techniques and Technologies for Field Detection of Asbestos Containing Materials

    Broader source: Energy.gov [DOE]

    Asbestos has been used in numerous applications at DOE sites including sprayed-on fireproofing, asphalt and vinyl floor tile, and asbestos-cement(transite) siding.

  6. An Introduction to Computational Intelligence Techniques for Robot Control

    E-Print Network [OSTI]

    Bullinaria, John

    : The application of computational intelligence techniques to the field of industrial robot control is discussed involved, with particular reference to existing applications of these techniques in industrial robotics in real time to update that model. Often, particularly for industrial robots, the model is used off

  7. Geographic Resource Map of Frozen Pipe Probabilities

    Broader source: Energy.gov [DOE]

    Presentation slide details a resource map showing the probability of frozen pipes in the geographic United States.

  8. Application of Gray codes to the study of the theory of symbolic dynamics of unimodal maps

    E-Print Network [OSTI]

    David Arroyo; Gonzalo Alvarez

    2012-04-29T23:59:59.000Z

    In this paper we provide a closed mathematical formulation of our previous results in the field of symbolic dynamics of unimodal maps. This being the case, we discuss the classical theory of applied symbolic dynamics for unimodal maps and its reinterpretation using Gray codes. This connection was previously emphasized but no explicit mathematical proof was provided. The work described in this paper not only contributes to the integration of the different interpretations of symbolic dynamics of unimodal maps, it also points out some inaccuracies that exist in previous works.

  9. Extracting cosmic microwave background polarisation from satellite astrophysical maps

    E-Print Network [OSTI]

    Baccigalupi, C; De Zotti, G; Smoot, G F; Burigana, C; Maino, D; Bedini, L; Salerno, E

    2002-01-01T23:59:59.000Z

    We present the application of the Fast Independent Component Analysis technique for blind component separation to polarised astrophysical emission. We study how the Cosmic Microwave Background (CMB) polarised signal, consisting of $E$ and $B$ modes, can be extracted from maps affected by substantial contamination from diffuse Galactic foregrounds and instrumental noise. We perform the analysis of all sky maps simulated accordingly to the nominal performances of the Low Frequency Instrument (LFI) aboard the Planck satellite; the sky signal is modeled as a superposition of CMB, generated by a Gaussian, nearly scale invariant cosmological perturbation spectrum, and the existing simulated polarisation templates of Galactic synchrotron. Our results indicate that the angular power spectrum of CMB $E$ modes can be recovered on all scales up to $\\ell\\simeq 1000$, corresponding to the fourth acoustic oscillation, while $B$ modes can be detected, up to their turnover at $\\ell\\simeq 100$ if cosmological tensor amplitude...

  10. Noncommuting Electric Fields and Algebraic Consistency in Noncommutative Gauge theories

    E-Print Network [OSTI]

    Rabin Banerjee

    2003-03-20T23:59:59.000Z

    We show that noncommuting electric fields occur naturally in $\\theta$-expanded noncommutative gauge theories. Using this noncommutativity, which is field dependent, and a hamiltonian generalisation of the Seiberg-Witten Map, the algebraic consistency in the lagrangian and hamiltonian formulations of these theories, is established. A comparison of results in different descriptions shows that this generalised map acts as canonical transformation in the physical subspace only. Finally, we apply the hamiltonian formulation to derive the gauge symmetries of the action.

  11. UNCORRECTEDPROOF 2 Positioning using local maps q

    E-Print Network [OSTI]

    Ruml, Wheeler

    Positioning using Local 11 Maps (PLM). Given a path between a starting node and a remote node we wish absolute coordinates. We instantiate the PLM framework using the previously pro- 15 posed MDS Local 57 Maps (PLM). The method estimates node loca- 58 tions based on local maps, i.e., positions

  12. Mining Protein Contact Maps Jingjing Hu

    E-Print Network [OSTI]

    Bystroff, Chris

    Mining Protein Contact Maps Jingjing Hu , Xiaolan Shen , Yu Shao ¡ , Chris Bystroff matrix of pairwise, inter-residue contacts, or "contact map". The contact map provides a host of use- ful information about the protein's structure. In this paper we de- scribe how data mining can be used to extract

  13. Near-surface gas mapping studies of salt geologic features at Weeks Island and other sites

    SciTech Connect (OSTI)

    Molecke, M.A. [Sandia National Lab., Albuquerque, NM (United States); Carney, K.R.; Autin, W.J.; Overton, E.B. [Louisiana State Univ., Baton Rouge, LA (United States)

    1996-10-01T23:59:59.000Z

    Field sampling and rapid gas analysis techniques were used to survey near-surface soil gases for geotechnical diagnostic purposes at the Weeks Island Strategic Petroleum Reserve (SPR) site and other salt dome locations in southern Louisiana. This report presents the complete data, results and interpretations obtained during 1995. Weeks Island 1994 gas survey results are also briefly summarized; this earlier study did not find a definitive correlation between sinkhole No. 1 and soil gases. During 1995, several hundred soil gas samples were obtained and analyzed in the field by gas chromatography, for profiling low concentrations and gas anomalies at ppm to percent levels. The target gases included hydrogen, methane, ethane and ethylene. To supplement the field data, additional gas samples were collected at various site locations for laboratory analysis of target gases at ppb levels. Gases in the near-surface soil originate predominantly from the oil, from petrogenic sources within the salt, or from surface microbial activity. Surveys were conducted across two Weeks Island sinkholes, several mapped anomalous zones in the salt, and over the SPR repository site and its perimeter. Samples were also taken at other south Louisiana salt dome locations for comparative purposes. Notable results from these studies are that elevated levels of hydrogen and methane (1) were positively associated with anomalous gassy or shear zones in the salt dome(s) and (2) are also associated with suspected salt fracture (dilatant) zones over the edges of the SPR repository. Significantly elevated areas of hydrogen, methane, plus some ethane, were found over anomalous shear zones in the salt, particularly in a location over high pressure gas pockets in the salt, identified in the mine prior to SPR operations. Limited stable isotope ratio analyses, SIRA, were also conducted and determined that methane samples were of petrogenic origin, not biogenic.

  14. A Superconducting Joint Technique for MgB[subscript 2] Round Wires

    E-Print Network [OSTI]

    Yao, Weijun

    This paper describes a technique to superconductively splice multifilament MgB2 wires. To date the technique has achieved joints capable of carrying a superconducting current of 200 A at 10 K in self field. Joints details, ...

  15. Instability of non-constant harmonic maps for the 1 + 2-dimensional equivariant wave map system

    E-Print Network [OSTI]

    Côte, Raphaël

    energy har- monic map Q (a stationary solution), and show that when it exists, Q is instable in the energy space. Our result applies in particular to the case of wave maps to the sphere S2Instability of non-constant harmonic maps for the 1 + 2-dimensional equivariant wave map system

  16. The University of Toronto Map and Data Library: An Introduction to Maps and Geospatial Data

    E-Print Network [OSTI]

    Sun, Yu

    .maps@utoronto.ca Phone: 416-978-5589 Web: http://mdl.library.utoronto.ca Hours Regular Robarts open hours or http, and Printing Maps One 36" wide map scanner, photocopier, printer, one 8.5" X 11" regular photocopier human visual tool. In other words, maps are part of a core group of basic tools for human communication

  17. Active load control techniques for wind turbines.

    SciTech Connect (OSTI)

    van Dam, C.P. (University of California, Davis, CA); Berg, Dale E.; Johnson, Scott J. (University of California, Davis, CA)

    2008-07-01T23:59:59.000Z

    This report provides an overview on the current state of wind turbine control and introduces a number of active techniques that could be potentially used for control of wind turbine blades. The focus is on research regarding active flow control (AFC) as it applies to wind turbine performance and loads. The techniques and concepts described here are often described as 'smart structures' or 'smart rotor control'. This field is rapidly growing and there are numerous concepts currently being investigated around the world; some concepts already are focused on the wind energy industry and others are intended for use in other fields, but have the potential for wind turbine control. An AFC system can be broken into three categories: controls and sensors, actuators and devices, and the flow phenomena. This report focuses on the research involved with the actuators and devices and the generated flow phenomena caused by each device.

  18. Resin infiltration transfer technique

    DOE Patents [OSTI]

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

    2009-12-08T23:59:59.000Z

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

  19. Innovative Technologies and Techniques

    E-Print Network [OSTI]

    Samano, R.; Swinford, S.

    2014-01-01T23:59:59.000Z

    November 2014 Innovative Technologies and Techniques ESL-KT-14-11-22 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 What’s New in Energy Efficient Cooling Systems? ? Director of Energy Management ? Moving Away From... Refrigerants ? LEED ? Reducing the Carbon Footprint ? Improving Indoor Air Quality - IAQ ? High Efficiency Fans and Motors ? Economizers ESL-KT-14-11-22 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 Outside Air Management Experts...

  20. Eastern Energy Zones Mapping Tool

    Broader source: Energy.gov [DOE]

    The Eastern Interconnection States’ Planning Council (EISPC) has released the Energy Zones (EZ) Mapping Tool, a free, web-based interactive tool that will help states and other stakeholders in the Eastern Interconnection identify geographic areas suitable for the development of clean energy resources (natural gas, sequestration or utilitization locations for C02 from coal, nuclear, and renewable) which can potentially provide significant amounts of new electric power generation.

  1. Sphere Light Field Rendering Zigang Wang1

    E-Print Network [OSTI]

    Sphere Light Field Rendering Zigang Wang1 and Zhengrong Liang1,2 Departments of Radiology1 and Computer Science2 , State University of New York, Stony Brook, NY 11794, USA ABSTRACT Light field algorithm is one of the most famous image-based rendering techniques. In this paper, an improved light field

  2. Infrared Inspection Techniques 

    E-Print Network [OSTI]

    Hill, A. B.; Bevers, D. V.

    1979-01-01T23:59:59.000Z

    Infrared scanning equipment has been used at Amoco's Texas City refinery since 1971 as an inspection tool. A camera scans the field of view and focuses the infrared radiation on a detector which converts the infrared signal to an electrical signal...

  3. Infrared Inspection Techniques

    E-Print Network [OSTI]

    Hill, A. B.; Bevers, D. V.

    1979-01-01T23:59:59.000Z

    Infrared scanning equipment has been used at Amoco's Texas City refinery since 1971 as an inspection tool. A camera scans the field of view and focuses the infrared radiation on a detector which converts the infrared signal to an electrical signal...

  4. GHIGLS: HI mapping at intermediate Galactic latitude using the Green Bank Telescope

    E-Print Network [OSTI]

    Martin, P G; Goncalves, D Pinheiro; Lockman, Felix J; Boothroyd, A I; Miville-Deschenes, M -A; Joncas, G; Stephan, G

    2015-01-01T23:59:59.000Z

    This paper introduces the data cubes from GHIGLS, our deep Green Bank Telescope surveys of the 21-cm line emission of HI in targeted fields at intermediate Galactic latitude. The GHIGLS fields together cover over 800 square degrees at 9.55' spatial resolution. The HI spectra have an effective velocity resolution about 1.0 km/s and cover at least -450 power spectra of maps of the column density, NHI. For our featured representative field, centered on the North Ecliptic Pole, the scaling exponents in power-law representations of the power spectra of NHI maps for low, intermediate, and high velocity gas components (LVC, IVC, and HVC) are -2.90 +/- 0.03, -2.55 +/- 0.04, and -2.66 +/- 0.06, respectively. After Gaussian decomposition of the line profiles, NHI maps were also made corresponding to the broad and narrow line components in the LVC...

  5. Jet finding techniques at LHC

    E-Print Network [OSTI]

    BOUMEDIENE, D; The ATLAS collaboration

    2015-01-01T23:59:59.000Z

    Jet finding techniques at hadron colliders, including pile-up removal tricks, jet deconstruction, etc

  6. Data Mining: Concepts and Techniques

    E-Print Network [OSTI]

    Geldenhuys, Jaco

    11 Data Mining: Concepts and Techniques (3rd ed.) -- Chapter 1 -- Jiawei Han, Micheline Kamber. All rights reserved. #12;July 29, 2013 Data Mining: Concepts and Techniques 2July 29, 2013 Data Mining: Concepts and Techniques 2 #12;July 29, 2013 Data Mining: Concepts and Techniques 3July 29, 2013 Data Mining

  7. HARMONIC MAPPINGS BETWEEN RIEMANNIAN MANIFOLDS Anand Arvind Joshi

    E-Print Network [OSTI]

    Leahy, Richard M.

    HARMONIC MAPPINGS BETWEEN RIEMANNIAN MANIFOLDS by Anand Arvind Joshi A Thesis Presented ii Abstract iv 1 Harmonic Mappings 1 1.1 Space of Maps Variation Formula . . . . . . . . . . . . . . . . . . . . . . . . 11 1.4 Harmonic Maps

  8. REVIEW OF SUPERCONDUCTING MAGNETOMETERS AND CRYOGENIC REFRIGERATION TECHNIQUES

    E-Print Network [OSTI]

    Boyer, Edmond

    3. REVIEW OF SUPERCONDUCTING MAGNETOMETERS AND CRYOGENIC REFRIGERATION TECHNIQUES By W. S. GOREE to devices for shielding, stabilizing, measuring and producing magnetic fields. The zero resistance property of superconductors has been used to construct magnets capable of producing magnetic fields up to 140 kgauss

  9. Spectral Transforms for Large Boolean Functions with Applications to Technology Mapping *

    E-Print Network [OSTI]

    Clarke, Edmund M.

    Spectral Transforms for Large Boolean Functions with Applications to Technology Mapping * E. M techniques can also be used to compute the Reed-Muller transform of boolean functions [3] with large numbers. Clarket K.L. McMillant X. Zhaot M. Fujita$ J. Yang $ Abstract The Walsh transform has numerous

  10. Sea ice extent mapping using Ku band scatterometer data Quinn P. Remund and David G. Long

    E-Print Network [OSTI]

    Long, David G.

    Sea ice extent mapping using Ku band scatterometer data Quinn P. Remund and David G. Long enhancement techniques can be used to increase the utility of scatterometer data in monitoring sea-ice extent is the incidence angle dependence of o . Dual-polarization A and B parameters are used to identify sea ice

  11. A closedform solution for mapping general distributions to minimal PH distributions

    E-Print Network [OSTI]

    A closed­form solution for mapping general distributions to minimal PH distributions Takayuki Pittsburgh Digital Greenhouse Grant 01­1. #12; Abstract Approximating general distributions by phase­type (PH) distributions is a popular technique in queueing analysis, since the Markovian property of PH distributions

  12. A Closed-Form Solution for Mapping General Distributions to Minimal PH Distributions

    E-Print Network [OSTI]

    Harchol-Balter, Mor

    A Closed-Form Solution for Mapping General Distributions to Minimal PH Distributions Takayuki distributions by phase-type (PH) dis- tributions is a popular technique in queueing analysis, since the Marko- vian property of PH distributions often allows analytical tractability. This paper proposes

  13. A closed-form solution for mapping general distributions to minimal PH distributions

    E-Print Network [OSTI]

    A closed-form solution for mapping general distributions to minimal PH distributions Takayuki Pittsburgh Digital Greenhouse Grant 01-1. #12;Abstract Approximating general distributions by phase-type (PH) distributions is a popular technique in queueing analysis, since the Markovian property of PH distributions

  14. High Speed Max-Log-MAP Turbo SISO Decoder Implementation Using Branch Metric Normalization

    E-Print Network [OSTI]

    Arslan, Tughrul

    High Speed Max-Log-MAP Turbo SISO Decoder Implementation Using Branch Metric Normalization J. H.Erdogan@ee.ed.ac.uk, Tughrul.Arslan@ee.ed.ac.uk Abstract The authors present a turbo soft-in soft-out (SISO) decoder based. The turbo decoder with the proposed technique has been synthesized to evaluate its power consumption

  15. Field Mapping At San Francisco Volcanic Field Area (Warpinski, Et Al.,

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BVEnergy Information Shevenell,Information2004)

  16. Applied ALARA techniques

    SciTech Connect (OSTI)

    Waggoner, L.O.

    1998-02-05T23:59:59.000Z

    The presentation focuses on some of the time-proven and new technologies being used to accomplish radiological work. These techniques can be applied at nuclear facilities to reduce radiation doses and protect the environment. The last reactor plants and processing facilities were shutdown and Hanford was given a new mission to put the facilities in a safe condition, decontaminate, and prepare them for decommissioning. The skills that were necessary to operate these facilities were different than the skills needed today to clean up Hanford. Workers were not familiar with many of the tools, equipment, and materials needed to accomplish:the new mission, which includes clean up of contaminated areas in and around all the facilities, recovery of reactor fuel from spent fuel pools, and the removal of millions of gallons of highly radioactive waste from 177 underground tanks. In addition, this work has to be done with a reduced number of workers and a smaller budget. At Hanford, facilities contain a myriad of radioactive isotopes that are 2048 located inside plant systems, underground tanks, and the soil. As cleanup work at Hanford began, it became obvious early that in order to get workers to apply ALARA and use hew tools and equipment to accomplish the radiological work it was necessary to plan the work in advance and get radiological control and/or ALARA committee personnel involved early in the planning process. Emphasis was placed on applying,ALARA techniques to reduce dose, limit contamination spread and minimize the amount of radioactive waste generated. Progress on the cleanup has,b6en steady and Hanford workers have learned to use different types of engineered controls and ALARA techniques to perform radiological work. The purpose of this presentation is to share the lessons learned on how Hanford is accomplishing radiological work.

  17. How to Use the Index & Grid Maps Each BioBlitz Zone has a map packet. The packets contain an index map and several grid (aerial) maps. In addition to identifying

    E-Print Network [OSTI]

    Columbia University

    How to Use the Index & Grid Maps Each BioBlitz Zone has a map packet. The packets contain an index map and several grid (aerial) maps. In addition to identifying species in the park, this year we would of the zone. This map shows which areas are covered by the grid maps. The black squares show the edge of each

  18. Absolute kinematics of radio source components in the complete S5 polar cap sample. III. First wide-field high-precision astrometry at 15.4 GHz

    E-Print Network [OSTI]

    I. Marti-Vidal; J. M. Marcaide; J. C. Guirado; M. A. Perez-Torres; E. Ros

    2007-11-13T23:59:59.000Z

    We report on the first wide-field, high-precision astrometric analysis of the 13 extragalactic radio sources of the complete S5 polar cap sample at 15.4 GHz. We describe new algorithms developed to enable the use of differenced phase delays in wide-field astrometric observations and discuss the impact of using differenced phase delays on the precision of the wide-field astrometric analysis. From this global fit, we obtained estimates of the relative source positions with precisions ranging from 14 to 200 $\\mu$as at 15.4 GHz, depending on the angular separation of the sources (from $\\sim$1.6 to $\\sim$20.8 degrees). These precisions are $\\sim$10 times higher than the achievable precisions using the phase-reference mapping technique.

  19. Gravitational wave radiometry: Mapping a stochastic gravitational wave background

    SciTech Connect (OSTI)

    Mitra, Sanjit [Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411007 (India); Observatoire de la Cote d'Azur, BP 4229, 06304 Nice Cedex 4 (France); Dhurandhar, Sanjeev; Souradeep, Tarun [Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411007 (India); Lazzarini, Albert; Mandic, Vuk; Ballmer, Stefan [LIGO Laboratory, California Institute of Technology, MS 18-34, Pasadena, California 91125 (United States); Bose, Sukanta [Department of Physics, Washington State University, Pullman, Washington 99164-2814 (United States)

    2008-02-15T23:59:59.000Z

    The problem of the detection and mapping of a stochastic gravitational wave background (SGWB), either cosmological or astrophysical, bears a strong semblance to the analysis of the cosmic microwave background (CMB) anisotropy and polarization, which too is a stochastic field, statistically described in terms of its correlation properties. An astrophysical gravitational wave background (AGWB) will likely arise from an incoherent superposition of unmodelled and/or unresolved sources and cosmological gravitational wave backgrounds (CGWB) are also predicted in certain scenarios. The basic statistic we use is the cross correlation between the data from a pair of detectors. In order to ''point'' the pair of detectors at different locations one must suitably delay the signal by the amount it takes for the gravitational waves (GW) to travel to both detectors corresponding to a source direction. Then the raw (observed) sky map of the SGWB is the signal convolved with a beam response function that varies with location in the sky. We first present a thorough analytic understanding of the structure of the beam response function using an analytic approach employing the stationary phase approximation. The true sky map is obtained by numerically deconvolving the beam function in the integral (convolution) equation. We adopt the maximum likelihood framework to estimate the true sky map using the conjugate gradient method that has been successfully used in the broadly similar, well-studied CMB map-making problem. We numerically implement and demonstrate the method on signal generated by simulated (unpolarized) SGWB for the GW radiometer consisting of the LIGO pair of detectors at Hanford and Livingston. We include 'realistic' additive Gaussian noise in each data stream based on the LIGO-I noise power spectral density. The extension of the method to multiple baselines and polarized GWB is outlined. In the near future the network of GW detectors, including the Advanced LIGO and Virgo detectors that will be sensitive to sources within a thousand times larger spatial volume, could provide promising data sets for GW radiometry.

  20. Revisiting the Rigidly Rotating Magnetosphere model for $\\sigma$ Ori E - II. Magnetic Doppler imaging, arbitrary field RRM, and light variability

    E-Print Network [OSTI]

    Oksala, M E; Krticka, J; Townsend, R H D; Wade, G A; Prvak, M; Mikulasek, Z; Silvester, J; Owocki, S P

    2015-01-01T23:59:59.000Z

    The initial success of the Rigidly Rotating Magnetosphere (RRM) model application to the B2Vp star sigma OriE by Townsend, Owocki & Groote (2005) triggered a renewed era of observational monitoring of this archetypal object. We utilize high-resolution spectropolarimetry and the magnetic Doppler imaging (MDI) technique to simultaneously determine the magnetic configuration, which is predominately dipolar, with a polar strength Bd = 7.3-7.8 kG and a smaller non-axisymmetric quadrupolar contribution, as well as the surface distribution of abundance of He, Fe, C, and Si. We describe a revised RRM model that now accepts an arbitrary surface magnetic field configuration, with the field topology from the MDI models used as input. The resulting synthetic Ha emission and broadband photometric observations generally agree with observations, however, several features are poorly fit. To explore the possibility of a photospheric contribution to the observed photometric variability, the MDI abundance maps were used to ...

  1. Physical mapping of complex genomes

    DOE Patents [OSTI]

    Evans, G.A.

    1993-06-15T23:59:59.000Z

    A method for the simultaneous identification of overlapping cosmid clones among multiple cosmid clones and the use of the method for mapping complex genomes are provided. A library of cosmid clones that contains the DNA to be mapped is constructed and arranged in a manner such that individual clones can be identified and replicas of the arranged clones prepared. In preferred embodiments, the clones are arranged in a two dimensional matrix. In such embodiments, the cosmid clones in a row are pooled, mixed probes complementary to the ends of the DNA inserts in the pooled clones are synthesized, hybridized to a first replica of the library. Hybridizing clones, which include the pooled row, are identified. A second portion of clones is prepared by pooling cosmid clones that correspond to a column in the matrix. The second pool thereby includes one clone from the first portion pooled clones. This common clone is located on the replica at the intersection of the column and row. Mixed probes complementary to the ends of the DNA inserts in the second pooled portion of clones are prepared and hybridized to a second replica of the library. The hybridization pattern on the first and second replicas of the library are compared and cross-hybridizing clones, other than the clones in the pooled column and row, that hybridize to identical clones in the first and second replicas are identified. These clones necessarily include DNA inserts that overlap with the DNA insert in the common clone located at the intersection of the pooled row and pooled column. The DNA in the entire library may be mapped by pooling the clones in each of the rows and columns of the matrix, preparing mixed end-specific probes and hybridizing the probes from each row or column to a replica of the library. Since all clones in the library are located at the intersection of a column and a row, the overlapping clones for all clones in the library may be identified and a physical map constructed.

  2. Physical mapping of complex genomes

    DOE Patents [OSTI]

    Evans, Glen A. (Encinitas, CA)

    1993-01-01T23:59:59.000Z

    Method for simultaneous identification of overlapping cosmid clones among multiple cosmid clones and the use of the method for mapping complex genomes are provided. A library of cosmid clones that contains the DNA to be mapped is constructed and arranged in a manner such that individual clones can be identified and replicas of the arranged clones prepared. In preferred embodiments, the clones are arranged in a two dimensional matrix. In such embodiments, the cosmid clones in a row are pooled, mixed probes complementary to the ends of the DNA inserts int he pooled clones are synthesized, hybridized to a first replica of the library. Hybridizing clones, which include the pooled row, are identified. A second portion of clones is prepared by pooling cosmid clones that correspond to a column in the matrix. The second pool thereby includes one clone from the first portion pooled clones. This common clone is located on the replica at the intersection of the column and row. Mixed probes complementary to the ends of the DNA inserts in the second pooled portion of clones are prepared and hybridized to a second replica of the library. The hybridization pattern on the first and second replicas of the library are compared and cross-hybridizing clones, other than the clones in the pooled column and row, that hybridize to identical clones in the first and second replicas are identified. These clones necessarily include DNA inserts that overlap with the DNA insert int he common clone located at the intersection of the pooled row and pooled column. The DNA in the entire library may be mapped by pooling the clones in each of the rows and columns of the matrix, preparing mixed end-specific probes and hybridizing the probes from each row or column to a replica of the library. Since all clones in the library are located at the intersection of a column and a row, the overlapping clones for all clones in the library may be identified and a physical map constructed. In other preferred embodiments, the cosmid clones are arranged in a three dimensional matrix, pooled and compared in threes according to intersecting planes of the three dimensional matrix. Arrangements corresponding to geometries of higher dimensions may also be prepared and used to simultaneously identify overlapping clones in highly complex libraries with relatively few hybridization reactions.

  3. Constructing Buildings and Harmonic Maps

    E-Print Network [OSTI]

    Katzarkov, Ludmil; Pandit, Pranav; Simpson, Carlos

    2015-01-01T23:59:59.000Z

    In a continuation of our previous work, we outline a theory which should lead to the construction of a universal pre-building and versal building with a $\\phi$-harmonic map from a Riemann surface, in the case of two-dimensional buildings for the group $SL_3$. This will provide a generalization of the space of leaves of the foliation defined by a quadratic differential in the classical theory for $SL_2$. Our conjectural construction would determine the exponents for $SL_3$ WKB problems, and it can be put into practice on examples.

  4. Geothermal Maps | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently20,000 RussianBy: Thomas P. D'Agostino, Undersecretary11-161-LNGGary M.GenaWhere1Map of

  5. Fault Mapping | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania: EnergyExolisFairway,FarmersFastcap SystemsShearMapping Jump

  6. Site Map - EERE Commercialization Office

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebookScholarship Fund3 Outlook forSDPPP Individual Permit:Site Map

  7. Site Map | DOE Data Explorer

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebookScholarship Fund3 Outlook forSDPPP Individual Permit:Site MapSite

  8. Site Map | ScienceCinema

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebookScholarship Fund3 Outlook forSDPPP Individual Permit:SiteSite Map

  9. ARM - TWP-ICE Maps

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadap Documentation TDMADAP :ProductsVaisalaAlaskaInstruments NSASteeringContactsTWP-ICE Maps

  10. Overcoming the far-field diffraction limit via absorbance modulation

    E-Print Network [OSTI]

    Tsai, Hsin-Yu Sidney

    2011-01-01T23:59:59.000Z

    Diffraction limits the resolution of far-field lithography and imaging to about half of the wavelength, which greatly limits the capability of optical techniques. The proposed technique with absorbance modulation aims to ...

  11. Field Guide

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.New Mexico Feb. 13,Conservation BillingFieldField

  12. Field error lottery

    SciTech Connect (OSTI)

    Elliott, C.J.; McVey, B. (Los Alamos National Lab., NM (USA)); Quimby, D.C. (Spectra Technology, Inc., Bellevue, WA (USA))

    1990-01-01T23:59:59.000Z

    The level of field errors in an FEL is an important determinant of its performance. We have computed 3D performance of a large laser subsystem subjected to field errors of various types. These calculations have been guided by simple models such as SWOOP. The technique of choice is utilization of the FELEX free electron laser code that now possesses extensive engineering capabilities. Modeling includes the ability to establish tolerances of various types: fast and slow scale field bowing, field error level, beam position monitor error level, gap errors, defocusing errors, energy slew, displacement and pointing errors. Many effects of these errors on relative gain and relative power extraction are displayed and are the essential elements of determining an error budget. The random errors also depend on the particular random number seed used in the calculation. The simultaneous display of the performance versus error level of cases with multiple seeds illustrates the variations attributable to stochasticity of this model. All these errors are evaluated numerically for comprehensive engineering of the system. In particular, gap errors are found to place requirements beyond mechanical tolerances of {plus minus}25{mu}m, and amelioration of these may occur by a procedure utilizing direct measurement of the magnetic fields at assembly time. 4 refs., 12 figs.

  13. Entanglement distillation by extendible maps

    E-Print Network [OSTI]

    Lukasz Pankowski; Fernando G. S. L. Brandao; Michal Horodecki; Graeme Smith

    2013-08-25T23:59:59.000Z

    It is known that from entangled states that have positive partial transpose it is not possible to distill maximally entangled states by local operations and classical communication (LOCC). A long-standing open question is whether maximally entangled states can be distilled from every state with a non-positive partial transpose. In this paper we study a possible approach to the question consisting of enlarging the class of operations allowed. Namely, instead of LOCC operations we consider k-extendible operations, defined as maps whose Choi-Jamiolkowski state is k-extendible. We find that this class is unexpectedly powerful - e.g. it is capable of distilling EPR pairs even from product states. We also perform numerical studies of distillation of Werner states by those maps, which show that if we raise the extension index k simultaneously with the number of copies of the state, then the class of k-extendible operations is not that powerful anymore and provide a better approximation to the set of LOCC operations.

  14. Tachyonic field interacting with Scalar (Phantom) Field

    E-Print Network [OSTI]

    Surajit Chattopadhyay; Ujjal Debnath

    2009-01-29T23:59:59.000Z

    In this letter, we have considered the universe is filled with the mixture of tachyonic field and scalar or phantom field. If the tachyonic field interacts with scalar or phantom field, the interaction term decays with time and the energy for scalar field is transferred to tachyonic field or the energy for phantom field is transferred to tachyonic field. The tachyonic field and scalar field potentials always decrease, but phantom field potential always increases.

  15. Flow Mapping in a Gas-Solid Riser via Computer Automated Radioactive Particle Tracking (CARPT)

    SciTech Connect (OSTI)

    Muthanna Al-Dahhan; Milorad P. Dudukovic; Satish Bhusarapu; Timothy J. O'hern; Steven Trujillo; Michael R. Prairie

    2005-06-04T23:59:59.000Z

    Statement of the Problem: Developing and disseminating a general and experimentally validated model for turbulent multiphase fluid dynamics suitable for engineering design purposes in industrial scale applications of riser reactors and pneumatic conveying, require collecting reliable data on solids trajectories, velocities ? averaged and instantaneous, solids holdup distribution and solids fluxes in the riser as a function of operating conditions. Such data are currently not available on the same system. Multiphase Fluid Dynamics Research Consortium (MFDRC) was established to address these issues on a chosen example of circulating fluidized bed (CFB) reactor, which is widely used in petroleum and chemical industry including coal combustion. This project addresses the problem of lacking reliable data to advance CFB technology. Project Objectives: The objective of this project is to advance the understanding of the solids flow pattern and mixing in a well-developed flow region of a gas-solid riser, operated at different gas flow rates and solids loading using the state-of-the-art non-intrusive measurements. This work creates an insight and reliable database for local solids fluid-dynamic quantities in a pilot-plant scale CFB, which can then be used to validate/develop phenomenological models for the riser. This study also attempts to provide benchmark data for validation of Computational Fluid Dynamic (CFD) codes and their current closures. Technical Approach: Non-Invasive Computer Automated Radioactive Particle Tracking (CARPT) technique provides complete Eulerian solids flow field (time average velocity map and various turbulence parameters such as the Reynolds stresses, turbulent kinetic energy, and eddy diffusivities). It also gives directly the Lagrangian information of solids flow and yields the true solids residence time distribution (RTD). Another radiation based technique, Computed Tomography (CT) yields detailed time averaged local holdup profiles at various planes. Together, these two techniques can provide the needed local solids flow dynamic information for the same setup under identical operating conditions, and the data obtained can be used as a benchmark for development, and refinement of the appropriate riser models. For the above reasons these two techniques were implemented in this study on a fully developed section of the riser. To derive the global mixing information in the riser, accurate solids RTD is needed and was obtained by monitoring the entry and exit of a single radioactive tracer. Other global parameters such as Cycle Time Distribution (CTD), overall solids holdup in the riser, solids recycle percentage at the bottom section of the riser were evaluated from different solids travel time distributions. Besides, to measure accurately and in-situ the overall solids mass flux, a novel method was applied.

  16. Masking line foregrounds in intensity mapping surveys

    E-Print Network [OSTI]

    Breysse, Patrick C; Kamionkowski, Marc

    2015-01-01T23:59:59.000Z

    We address the problem of line confusion in intensity mapping surveys and explore the possibility to mitigate line foreground contamination by progressively masking the brightest pixels in the observed map. We consider experiments targeting CO(1-0) at $z=3$, Ly$\\alpha$ at $z=7$, and CII at $z=7$, and use simulated intensity maps, which include both clustering and shot noise components of the signal and possible foregrounds, in order to test the efficiency of our method. We find that for CO and Ly$\\alpha$ it is quite possible to remove most of the foreground contribution from the maps via only 1%-3% pixel masking. The CII maps will be more difficult to clean, however, due to instrumental constraints and the high-intensity foreground contamination involved. While the masking procedure sacrifices much of the astrophysical information present in our maps, we demonstrate that useful cosmological information in the targeted lines can be successfully retrieved.

  17. THE MAGNETIC FIELD IN TAURUS PROBED BY INFRARED POLARIZATION

    SciTech Connect (OSTI)

    Chapman, Nicholas L.; Goldsmith, Paul F.; Pineda, Jorge L.; Li Di [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, MS 301-429, Pasadena, CA 91109 (United States); Clemens, D. P. [Institute for Astrophysical Research, Boston University, 725 Commonwealth Avenue, Boston, MA 02215 (United States); Krco, Marko, E-mail: nchapman@u.northwestern.edu [Department of Astronomy, Cornell University, Ithaca, NY 14853 (United States)

    2011-11-01T23:59:59.000Z

    We present maps of the plane-of-sky magnetic field within two regions of the Taurus molecular cloud: one in the dense core L1495/B213 filament and the other in a diffuse region to the west. The field is measured from the polarization of background starlight seen through the cloud. In total, we measured 287 high-quality near-infrared polarization vectors in these regions. In L1495/B213, the percent polarization increases with column density up to A{sub V} {approx} 9 mag, the limits of our data. The radiative torques model for grain alignment can explain this behavior, but models that invoke turbulence are inconsistent with the data. We also combine our data with published optical and near-infrared polarization measurements in Taurus. Using this large sample, we estimate the strength of the plane-of-sky component of the magnetic field in nine subregions. This estimation is done with two different techniques that use the observed dispersion in polarization angles. Our values range from 5 to 82 {mu}G and tend to be higher in denser regions. In all subregions, the critical index of the mass-to-magnetic flux ratio is sub-unity, implying that Taurus is magnetically supported on large scales ({approx}2 pc). Within the region observed, the B213 filament takes a sharp turn to the north and the direction of the magnetic field also takes a sharp turn, switching from being perpendicular to the filament to becoming parallel. This behavior can be understood if we are observing the rim of a bubble. We argue that it has resulted from a supernova remnant associated with a recently discovered nearby gamma-ray pulsar.

  18. Bifurcations of homoclinic orbits in bimodal maps

    E-Print Network [OSTI]

    Kai T. Hansen

    1994-11-04T23:59:59.000Z

    We discuss the bifurcation structure of homoclinic orbits in bimodal one dimensional maps. The universal structure of these bifurcations with singular bifurcation points and the web of bifurcation lines through the parameter space are described. The bifurcations depend on two parameters (codimension 2 bifurcations). We find the bifurcation lines exactly in a symbolic dynamics parameter plane and numerically in the parameter planes of a polynomial map and a piecewise linear map.

  19. Weyl laws for partially open quantum maps

    E-Print Network [OSTI]

    Emmanuel Schenck

    2009-04-03T23:59:59.000Z

    We study a toy model for "partially open" wave-mechanical system, like for instance a dielectric micro-cavity, in the semiclassical limit where ray dynamics is applicable. Our model is a quantized map on the 2-dimensional torus, with an additional damping at each time step, resulting in a subunitary propagator, or "damped quantum map". We obtain analogues of Weyl's laws for such maps in the semiclassical limit, and draw some more precise estimates when the classical dynamic is chaotic.

  20. Exploring Los Angeles Campus Maps

    E-Print Network [OSTI]

    Southern California, University of

    School for Communication and Journalism, ASC B7 Arts and Humanities Residential College at Parkside, PRB, DCC B2 Dedeaux Field A4 Denney Research Center, DRB B5 Dept. of Public Safety (Parking Structure A) F5

  1. PIXE-quantified AXSIA : elemental mapping by multivariate spectral analysis.

    SciTech Connect (OSTI)

    Doyle, Barney Lee; Antolak, Arlyn J. (Sandia National Labs, Livermore, CA); Campbell, J. L. (University of Guelph, Guelph, ON, Canada); Ryan, C. G. (CSIRO Exploration and Mining Bayview Road, Clayton VIC, Australia); Provencio, Paula Polyak; Barrett, Keith E. (Primecore Systems, Albuquerque, NM,); Kotula, Paul Gabriel

    2005-07-01T23:59:59.000Z

    Automated, nonbiased, multivariate statistical analysis techniques are useful for converting very large amounts of data into a smaller, more manageable number of chemical components (spectra and images) that are needed to describe the measurement. We report the first use of the multivariate spectral analysis program AXSIA (Automated eXpert Spectral Image Analysis) developed at Sandia National Laboratories to quantitatively analyze micro-PIXE data maps. AXSIA implements a multivariate curve resolution technique that reduces the spectral image data sets into a limited number of physically realizable and easily interpretable components (including both spectra and images). We show that the principal component spectra can be further analyzed using conventional PIXE programs to convert the weighting images into quantitative concentration maps. A common elemental data set has been analyzed using three different PIXE analysis codes and the results compared to the cases when each of these codes is used to separately analyze the associated AXSIA principal component spectral data. We find that these comparisons are in good quantitative agreement with each other.

  2. Rock Sampling At San Francisco Volcanic Field Area (Warpinski...

    Open Energy Info (EERE)

    Field Area Exploration Technique Rock Sampling Activity Date Usefulness not indicated DOE-funding Unknown Notes Northern Arizona University has re-assessed the existing exploration...

  3. Mapping Particle Charges in Battery Electrodes

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

    Mapping Particle Charges in Battery Electrodes Print The deceivingly simple appearance of batteries masks their chemical complexity. A typical lithium-ion battery in a cell phone...

  4. Speech processing using maximum likelihood continuity mapping

    DOE Patents [OSTI]

    Hogden, John E. (Santa Fe, NM)

    2000-01-01T23:59:59.000Z

    Speech processing is obtained that, given a probabilistic mapping between static speech sounds and pseudo-articulator positions, allows sequences of speech sounds to be mapped to smooth sequences of pseudo-articulator positions. In addition, a method for learning a probabilistic mapping between static speech sounds and pseudo-articulator position is described. The method for learning the mapping between static speech sounds and pseudo-articulator position uses a set of training data composed only of speech sounds. The said speech processing can be applied to various speech analysis tasks, including speech recognition, speaker recognition, speech coding, speech synthesis, and voice mimicry.

  5. Alternative Fuels Data Center: Maps and Data

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    fuels such as biodiesel, compressed natural gas (CNG), and liquefied natural gas (LNG). Source: Federal Highway Administration (FHA). National Statistics and Maps. 2007....

  6. Visualizing the logistic map with a microcontroller

    E-Print Network [OSTI]

    Juan D. Serna; Amitabh Joshi

    2011-12-25T23:59:59.000Z

    The logistic map is one of the simplest nonlinear dynamical systems that clearly exhibit the route to chaos. In this paper, we explored the evolution of the logistic map using an open-source microcontroller connected to an array of light emitting diodes (LEDs). We divided the one-dimensional interval $[0,1]$ into ten equal parts, and associated and LED to each segment. Every time an iteration took place a corresponding LED turned on indicating the value returned by the logistic map. By changing some initial conditions of the system, we observed the transition from order to chaos exhibited by the map.

  7. Testing Hyperspectral Data for Geobatanical Anomaly Mapping,...

    Open Energy Info (EERE)

    Data for Geobatanical Anomaly Mapping, Dixie Valley, Nevada, Geothermal Area Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Testing Hyperspectral Data...

  8. Visualizing the logistic map with a microcontroller

    E-Print Network [OSTI]

    Serna, Juan D

    2011-01-01T23:59:59.000Z

    The logistic map is one of the simplest nonlinear dynamical systems that clearly exhibit the route to chaos. In this paper, we explored the evolution of the logistic map using an open-source microcontroller connected to an array of light emitting diodes (LEDs). We divided the one-dimensional interval $[0,1]$ into ten equal parts, and associated and LED to each segment. Every time an iteration took place a corresponding LED turned on indicating the value returned by the logistic map. By changing some initial conditions of the system, we observed the transition from order to chaos exhibited by the map.

  9. Hydrothermal alteration mineral mapping using hyperspectral imagery...

    Open Energy Info (EERE)

    in Dixie Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Hydrothermal alteration mineral mapping using hyperspectral...

  10. Digital Mapping Of Structurally Controlled Geothermal Features...

    Open Energy Info (EERE)

    GPS Units And Pocket Computers Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Digital Mapping Of Structurally Controlled Geothermal Features...

  11. Digital Mapping Of Structurally Controlled Geothermal Features...

    Open Energy Info (EERE)

    Gps Units And Pocket Computers Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Digital Mapping Of Structurally Controlled Geothermal Features...

  12. Approximations by Orthonormal Mapped Chebyshev Functions for ...

    E-Print Network [OSTI]

    2014-03-12T23:59:59.000Z

    a School of Mathematical Science, Xiamen University, 361005 Xiamen, China .... suitable mapping can be used to approximate functions on the whole line R (cf.

  13. Error Analysis for Mapped Jacobi Spectral Methods

    E-Print Network [OSTI]

    2005-08-19T23:59:59.000Z

    Nov 30, 2003 ... Journal of Scientific Computing, Vol. 24, No. 2, August ... locally refined grid, a popular strategy is to use a suitable mapping which transforms a ...

  14. APS Map | Overview | Advanced Photon Source

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

    technical facility: the linear accelerator, the booster synchrotron, the electron storage ring, insertion devices, and the experiment hall. APS systems map Next: Linear Accelerator...

  15. TABLE OF CONTENTS NIST Map ...................................................................................................................................................3

    E-Print Network [OSTI]

    TABLE OF CONTENTS NIST Map the Power Grid PML TIME SPEAKER UNIVERSITY TITLE LAB 3:00P Brian Weinstein American University Temperature

  16. Highly Effective Action from Large N Gauge Fields

    E-Print Network [OSTI]

    Hyun Seok Yang

    2014-09-25T23:59:59.000Z

    Recently John H. Schwarz put forward a conjecture that the world-volume action of a probe D3-brane in an AdS5 x S5 background of type IIB superstring theory can be reinterpreted as the highly effective action (HEA) of four-dimensional N=4 superconformal field theory on the Coulomb branch. We argue that the HEA can be derived from the noncommutative (NC) field theory representation of the AdS/CFT correspondence and the Seiberg-Witten (SW) map defining a spacetime field redefinition between ordinary and NC gauge fields. It is based only on the well-known facts that the master fields of large N matrices are higher-dimensional NC U(1) gauge fields and the SW map is a local coordinate transformation eliminating U(1) gauge fields known as the Darboux theorem in symplectic geometry.

  17. Migrating to Autodesk MapGuide Enterprise 2008

    E-Print Network [OSTI]

    Ahmad, Sajjad

    Migration Autodesk MapGuide SDF 2 Files MapGuide 6.5 SDF 2.0 files were created with either Map 3D (manually) or using the Autodesk MapGuide 6.5 SDF Loader. Since MapGuide 2008 requires SDF 3.0 or higher versions, the SDF files will have to either be recreated with Map 3D or by using Load Procedures with Map

  18. Deformations of Quantum Field Theories and the Construction of Interacting Models

    E-Print Network [OSTI]

    Sabina Alazzawi

    2015-03-03T23:59:59.000Z

    The subject of this thesis is the rigorous construction of QFT models with nontrivial interaction. Two different approaches in the framework of AQFT are discussed. On the one hand, an inverse scattering problem is considered. A given factorizing S-matrix is thereby taken as the starting point of the construction. The particle spectrum taken into account involves an arbitrary number of massive particle species, transforming under a global gauge group. Starting from known wedge-local auxiliary fields, the transition to local theories is shown. To his end, we make use of the modular nuclearity condition and investigate certain maps from the wedge algebras, generated by the auxiliary fields, to the considered Hilbert space. Under a very plausible conjecture it is shown that these maps are nuclear, which implies the nontriviality of algebras associated with bounded regions in the sense that the Reeh-Schlieder property holds. A large class of integrable models with factorizing S-matrices in 1+1 dimensions can be constructed in this way. Among them are the O(N)-invariant nonlinear sigma-models. Deformation techniques, on the other hand, constitute a method of construction which may be applied in arbitrary spacetime dimensions. This approach starts from a known quantum field theoretic model which is subjected to a certain modification. Here, concretely, the model of a scalar massive Fermion was deformed. The emerging models are based on wedge-local fields, allowing for the computation of the two-particle S-matrix. The resulting scattering matrix depends on the deformation and differs from the one of the initial model. By restricting to 1+1 dimensions, the deformation method yields a large class of integrable models with factorizing S-matrices, including the Sinh-Gordon model.

  19. Modal field theory and quasi-sparse eigenvector diagonalization

    E-Print Network [OSTI]

    Dean Lee

    2000-04-01T23:59:59.000Z

    We review recent developments in non-perturbative field theory using modal field methods. We discuss Monte Carlo results as well as a new diagonalization technique known as the quasi-sparse eigenvector method.

  20. ASPECT Emergency Response Chemical and Radiological Mapping

    ScienceCinema (OSTI)

    LANL

    2009-09-01T23:59:59.000Z

    A unique airborne emergency response tool, ASPECT is a Los Alamos/U.S. Environmental Protection Agency project that can put chemical and radiological mapping tools in the air over an accident scene. The name ASPECT is an acronym for Airborne Spectral Photometric Environmental Collection Technology. Update, Sept. 19, 2008: Flying over storm-damaged refineries and chemical factories, a twin-engine plane carrying the ASPECT (Airborne Spectral Photometric Environmental Collection Technology) system has been on duty throughout the recent hurricanes that have swept the Florida and Gulf Coast areas. ASPECT is a project of the U.S. U.S. Environmental Protection Agencys National Decontamination Team. Los Alamos National Laboratory leads a science and technology program supporting the EPA and the ASPECT aircraft. Casting about with a combination of airborne photography and infrared spectroscopy, the highly instrumented plane provides emergency responders on the ground with a clear concept of where danger lies, and the nature of the sometimes-invisible plumes that could otherwise kill them. ASPECT is the nations only 24/7 emergency response aircraft with chemical plume mapping capability. Bob Kroutil of Bioscience Division is the project leader, and while he said the team has put in long hours, both on the ground and in the air, its a worthwhile effort. The plane flew over 320 targeted sites in four days, he noted. Prior to the deployment to the Gulf Coast, the plane had been monitoring the Democratic National Convention in Denver, Colorado. Los Alamos National Laboratory Divisions that are supporting ASPECT include, in addition to B-Division, CTN-5: Networking Engineering and IRM-CAS: Communication, Arts, and Services. Leslie Mansell, CTN-5, and Marilyn Pruitt, IRM-CAS, were recognized the the U.S. EPA for their outstanding support to the hurricane response of Gustav in Louisiana and Ike in Texas. The information from the data collected in the most recent event, Hurricane Ike, was sent to the EPA Region 6 Rapid Needs Assessment and the State of Texas Joint Field Office in Austin, Texas. It appears that though there is considerable damage in Galveston and Texas City, there are fewer chemical leaks than during either hurricanes Katrina or Rita. Specific information gathered from the data was reported out to the U.S. Environmental Protection Agency Headquarters, the Federal Emergency Management Agency, the Department of Homeland Security, and the State of Texas Emergency Management Agency.

  1. Seiberg-Witten map and Galilean symmetry violation in a noncommutative planar system

    SciTech Connect (OSTI)

    Chakraborty, Biswajit; Gangopadhyay, Sunandan; Saha, Anirban [Satyendra Nath Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake, Kolkata - 700098 (India); Department of Physics, Presidency College, 86/1 College Street, Kolkata-700073 (India)

    2004-11-15T23:59:59.000Z

    An effective U(1) gauge invariant theory is constructed for a noncommutative Schroedinger field coupled to a background U(1){sub *} gauge field in 2+1-dimensions using first order Seiberg-Witten map. We show that this effective theory can be cast in the form of usual Schroedinger action with interaction terms of noncommutative origin provided the gauge field is of background type with constant magnetic field. The Galilean symmetry is investigated and a violation is found in the boost sector. We also consider the problem of Hall conductivity in this framework.

  2. Causal signal transmission by quantum fields. V: Generalised Keldysh rotations and electromagnetic response of the Dirac sea

    SciTech Connect (OSTI)

    Plimak, L.I., E-mail: lev.plimak@uni-ulm.de [Institut fuer Quantenphysik, Universitaet Ulm, 89069 Ulm (Germany); Stenholm, S. [Institut fuer Quantenphysik, Universitaet Ulm, 89069 Ulm (Germany) [Institut fuer Quantenphysik, Universitaet Ulm, 89069 Ulm (Germany); Physics Department, Royal Institute of Technology, KTH, Stockholm (Sweden); Laboratory of Computational Engineering, HUT, Espoo (Finland)

    2012-11-15T23:59:59.000Z

    The connection between real-time quantum field theory (RTQFT) [see, e.g., A. Kamenev and A. Levchenko, Adv. Phys. 58 (2009) 197] and phase-space techniques [E. Wolf and L. Mandel, Optical Coherence and Quantum Optics (Cambridge, 1995)] is investigated. The Keldysh rotation that forms the basis of RTQFT is shown to be a phase-space mapping of the quantum system based on the symmetric (Weyl) ordering. Following this observation, we define generalised Keldysh rotations based on the class of operator orderings introduced by Cahill and Glauber [K.E. Cahill, R.J. Glauber, Phys. Rev. 177 (1969) 1882]. Each rotation is a phase-space mapping, generalising the corresponding ordering from free to interacting fields. In particular, response transformation [L.I. Plimak, S. Stenholm, Ann. Phys. (N.Y.) 323 (2008) 1989] extends the normal ordering of free-field operators to the time-normal ordering of Heisenberg operators. Structural properties of the response transformation, such as its association with the nonlinear quantum response problem and the related causality properties, hold for all generalised Keldysh rotations. Furthermore, we argue that response transformation is especially suited for RTQFT formulation of spatial, in particular, relativistic, problems, because it extends cancellation of zero-point fluctuations, characteristic of the normal ordering, to interacting fields. As an example, we consider quantised electromagnetic field in the Dirac sea. In the time-normally-ordered representation, dynamics of the field looks essentially classical (fields radiated by currents), without any contribution from zero-point fluctuations. For comparison, we calculate zero-point fluctuations of the interacting electromagnetic field under orderings other than time-normal. The resulting expression is physically inconsistent: it does not obey the Lorentz condition, nor Maxwell's equations. - Highlights: Black-Right-Pointing-Pointer The Keldysh rotation is a phase-space mapping based on Weyl's operator ordering. Black-Right-Pointing-Pointer Generalised Keldysh rotations (GKRs) based on other orderings are introduced. Black-Right-Pointing-Pointer Special properties of the GKR based on the normal ordering are elucidated. Black-Right-Pointing-Pointer In relativistic QED, other rotations are shown to be physically inconsistent.

  3. NCBI Map Viewer Tutorial NCBI's Map Viewer can be used to visualize an organism's genome and

    E-Print Network [OSTI]

    Levin, Judith G.

    .1" link. Enter GDNF as a search term and click on the "Find" button. Filter your search result for gene sapiens (human) Build 36" link. Enter PRNP as a search term. Name the chromosome on which this gene mutated. Search for "GDNF" in the Map Viewer. Access the Human Map Viewer page by clicking on the Map

  4. On Constructing a Base Map for Collaborative Map Generation and its Application in Urban Mobility Planning

    E-Print Network [OSTI]

    planning depends largely on the presence of good navigation data in the form of vectorized maps countries. On the other hand, good paper maps collected by the city authorities are widely available. Nevertheless, the integration of these GPS traces is itself a challenge and requires a good base map

  5. MINUTES MAPS Board Meeting April 9, 2013, MAPS Office 4-6:30pm

    E-Print Network [OSTI]

    Hitchcock, Adam P.

    operations vs. strategic planning) Must have qualifications and characteristics Must have integrity in MAPS control b. Some changes have already been made c. Things to post include: by-laws, new President. Arlen to lead discussion) c. Discussion of MAPS handbooks and production MAPS handbook

  6. Buildings by Name Bldg No Map Grid Func ons & Places Bldg No or Map

    E-Print Network [OSTI]

    #12;Buildings by Name Bldg No Map Grid Func ons & Places Bldg No or Map Grid Bldg No Buildings by Number Map Grid 1320 E San Pasqual (Caltech Y) 56 E4 24-Hour Security 66 1 Brown Gymnasium B5 1350 E San

  7. MAP SKILLS FOR ENVIRONMENTAL SCIENCE Gord Beck | Cathy Moulder | Lloyd Reeds Map Collection, Mills Library

    E-Print Network [OSTI]

    Haykin, Simon

    system) Military (Grid system) These 3 systems appear on Canadian topographic maps All systems use the intersection of an X and Y plane MAP REFERENCING SYSTEMS #12;Universal Transverse Mercator (UTM) Grid the UTM Grid It appears as BLUE lines on the surface of the map, and is indicated by BLUE numbers outside the

  8. Generating composite thematic maps from semantically-different collections of shapefiles and map services

    E-Print Network [OSTI]

    Rejaie, Reza

    Generating composite thematic maps from semantically-different collections of shapefiles and map mostly in shapefiles, and their online visualization as composite thematic maps. Following designIMS-based services. Shapefiles contributed by geoscience researchers and registered in the GEONgrid, are transferred

  9. The SAURON project - VIII. OASIS/CFHT integral-field spectroscopy of elliptical and lenticular galaxy centres

    E-Print Network [OSTI]

    McDermid, R M; Shapiro, K L; Bacon, R; Bureau, M; Cappellari, M; Davies, R L; De Zeeuw, T; Falcon-Barroso, J; Krajnovic, D; Kuntschner, H; Peletier, R F; Sarzi, M

    2006-01-01T23:59:59.000Z

    We present high spatial resolution integral-field spectroscopy of 28 elliptical (E) and lenticular (S0) galaxies from the SAURON representative survey obtained with the OASIS spectrograph during its operation at the CFHT. These seeing-limited observations explore the central 8"x10" (typically one kiloparsec diameter) regions of these galaxies using a spatial sampling four times higher than SAURON (0.27" vs. 0.94" spatial elements), resulting in almost a factor of two improvement in the median PSF. These data allow accurate study of the central regions to complement the large-scale view provided by SAURON. Here we present the stellar and gas kinematics, stellar absorption-line strengths and nebular emission-line strengths for this sample. We also characterise the stellar velocity maps using the "kinemetry" technique, and derive maps of the luminosity-weighted stellar age, metallicity and abundance ratio via stellar population models. We give a brief review of the structures found in our maps, linking also to l...

  10. Simulations of the OzDES AGN Reverberation Mapping Project

    E-Print Network [OSTI]

    King, Anthea L; Davis, Tamara M; Denney, K D; Kochanek, C S; Peterson, Bradley M; Skielboe, Andreas; Vestergaard, Marianne; Huff, Eric; Watson, Darach; Banerji, Manda; McMahon, Richard; Sharp, Rob; Lidman, C

    2015-01-01T23:59:59.000Z

    As part of the OzDES spectroscopic survey we are carrying out a large scale reverberation mapping study of $\\sim$500 quasars over five years in the 30 deg$^2$ area of the Dark Energy Survey (DES) supernova fields. These quasars have redshifts ranging up to 4 and have apparent AB magnitudes between $16.8mapping campaign and its possible extensions. We expect to recover lags for $\\sim$35-45\\% of the quasars. AGN with shorter lags and greater variability are more likely to yield a lag, and objects with lags $\\lesssim$6 month or $\\sim$1 year are expected be recovered the most accurately. The baseline OzDES reverberation mapping campaign is predicted to produce an ...

  11. New mathematical methods in human gene mapping

    SciTech Connect (OSTI)

    Terwilliger, J.D.

    1993-01-01T23:59:59.000Z

    Three published papers are presented. The first paper consists of an analytical investigation of the effects of marker heterozygosity and intermarker distance on a linkage analysis with a disease gene. The goal of this paper was to determine optimal properties for a putative genome-spanning map of markers. The results showed, as expected, that the power is highest when marker heterozygosity is highest, and/or intermarker distance is smallest. However, the authors found that the expected length of the one-lod-unit support interval was almost exclusively dependent on intermarker distance. The second paper deals with a repeated subsampling strategy I developed based on the multisample bootstrap of Efron (1982). This technique allows the user to perform a normally computationally intensive simulation study in a dramatically shorter time. In the example discussed in the paper, determining the p-value of a maximized-over-models maximum lod score, the computer time required for the study was reduced from several weeks to a few hours. This statistical method has subsequently been applied to other problems by Maclean et al. (1992), Leal et al. (1993), and Kong et al. (1992), for example. In the final paper, a novel variation of the haplotype relative risk (HRR) statistic of Rubinstein et al. (1981) is presented. This method, like the original HRR allows one to construct a well-matched control sample from the non-transmitted alleles of the parents of an affected child. In the statistic, the two alleles transmitted to the child constitute two observations in the [open quotes]case[close quotes] sample, and the two alleles the parents did not transmit from the [open quotes]control[close quotes] sample. The relationship between the projects is outlined in the introduction to this thesis, as is the general scientific background which led to the implementation and development of this research.

  12. King County Nearshore Habitat Mapping Data Report: Picnic Point to Shilshole Bay Marina

    SciTech Connect (OSTI)

    Woodruff, Dana L.; Farley, Paul J.; Borde, Amy B.; Southard, John A.; Thom, Ronald M.

    2000-12-31T23:59:59.000Z

    The objective of this study is to provide accurate, georeferenced maps of benthic habitats to assist in the siting of a new wastewater treatment plant outfall and the assessment of habitats of endangered, threatened, and economically important species. The mapping was conducted in the fall of 1999 using two complementary techniques: side-scan sonar and underwater videography. Products derived from these techniques include geographic information system (GIS) compatible polygon data of substrate type and vegetation cover, including eelgrass and kelp. Additional GIS overlays include underwater video track line data of total macroalgae, selected macroalgal species, fish, and macroinvertebrates. The combined tools of geo-referenced side-scan sonar and underwater video is a powerful technique for assessing and mapping of nearshore habitat in Puget Sound. Side-scan sonar offers the ability to map eelgrass with high spatial accuracy and resolution, and provides information on patch size, shape, and coverage. It also provides information on substrate change and location of specific targets (e.g., piers, docks, pilings, large boulders, debris piles). The addition of underwater video is a complementary tool providing both groundtruthing for the sonar and additional information on macro fauna and flora. As a groundtruthing technique, the video was able to confirm differences between substrate types, as well as detect subtle spatial changes in substrate. It also verified information related to eelgrass, including the density classification categories and the type of substrate associated with eelgrass, which could not be determined easily with side- scan sonar. Video is also a powerful tool for mapping the location of macroalgae, (including kelp and Ulva), fish and macroinvertebrates. The ability to geo-locate these resources in their functional habitat provides an added layer of information and analytical potential.

  13. Dose Reduction Techniques

    SciTech Connect (OSTI)

    WAGGONER, L.O.

    2000-05-16T23:59:59.000Z

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

  14. Wide field imaging of distant clusters

    E-Print Network [OSTI]

    T. Treu

    2004-08-05T23:59:59.000Z

    Wide field imaging is key to understanding the build-up of distant clusters and their galaxy population. By focusing on the so far unexplored outskirts of clusters, where infalling galaxies first hit the cluster potential and the hot intracluster medium, we can help separate cosmological field galaxy evolution from that driven by environment. I present a selection of recent advancements in this area, with particular emphasis on Hubble Space Telescope wide field imaging, for its superior capability to deliver galaxy morphologies and precise shear maps of distant clusters.

  15. Microseismic mapping of a Cotton Valley hydraulic fracture using decimated downhole arrays J.T. Rutledge

    E-Print Network [OSTI]

    Microseismic mapping of a Cotton Valley hydraulic fracture using decimated downhole arrays J three hydraulic fracture operations in the Cotton Valley gas field of East Texas. Two 48-level, 3 a consortia of operators and service companies conducted an extensive hydraulic fracture imaging demonstration

  16. Coastal Wind Mapping from Satellite SAR: Possibilities and Limitations Charlotte Bay Hasager and Merete Bruun Christiansen

    E-Print Network [OSTI]

    - 21 - Coastal Wind Mapping from Satellite SAR: Possibilities and Limitations Charlotte Bay Hasager and Merete Bruun Christiansen Risø National Laboratory, Wind Energy Department, Meteorology Program, VEA-118 Abstract Satellite remote sensing of ocean wind fields from Synthetic Aperture Radar (SAR) observations

  17. Mapping Medline Papers, Genes, and Proteins Related to Melanoma Research Kevin W. Boyack

    E-Print Network [OSTI]

    Börner, Katy

    Mapping Medline Papers, Genes, and Proteins Related to Melanoma Research Kevin W. Boyack , Ketan@indiana.edu} Abstract What is the structure of the research reported on melanoma? How has it evolved over the last 40 of the melanoma research field. 1. Introduction Given the explosive growth of biomedical databases, a large

  18. The MAP3S precipitation chemistry network: Eighth periodic summary report (1984)

    SciTech Connect (OSTI)

    Dana, M.T.

    1987-01-01T23:59:59.000Z

    This summary report, the eighth in the series, contains complete field and chemical data from the MAP3S Precipitation Chemistry Network for the year 1984. Sections cover Quality Assurance/Quality Control, network site information, and a brief statistical summary of the 1984 data.

  19. MAP3S precipitation chemistry network: sixth periodic summary report (1982)

    SciTech Connect (OSTI)

    Rothert, J.E.; Dana, M.T.

    1983-07-01T23:59:59.000Z

    This report contains complete field and chemical data from the MAP3S Precipitation Chemistry Network for the year 1982. Included is an update on network status and a summary of the USGS blind sample analysis program and laboratory sample exchanges during 1982. The statistical summary is deferred to a forthcoming publication.

  20. Data system for automatic flux mapping applications

    SciTech Connect (OSTI)

    Couch, R.D.; Kasinoff, A.M.; Neuner, J.A.; Oates, R.M.

    1980-12-16T23:59:59.000Z

    In an automatic flux mapping system utilizing a microprocessor for control and data information processing, signals from the incore detectors providing the flux mapping operation are converted to a frequency link and are made available to the microprocessor via a programmable timer thus minimizing the participation of the microprocessor so that the microprocessor can be made more available to satisfy other tasks.

  1. Positivity of linear maps under tensor powers

    E-Print Network [OSTI]

    Alexander Müller-Hermes; David Reeb; Michael M. Wolf

    2015-02-19T23:59:59.000Z

    We investigate linear maps between matrix algebras that remain positive under tensor powers, i.e., under tensoring with $n$ copies of themselves. Completely positive and completely co-positive maps are trivial examples of this kind. We show that for every $n\\in\\mathbb{N}$ there exist non-trivial maps with this property and that for two-dimensional Hilbert spaces there is no non-trivial map for which this holds for all $n$. For higher dimensions we reduce the existence question of such non-trivial "tensor-stable positive maps" to a one-parameter family of maps and show that an affirmative answer would imply the existence of NPPT bound entanglement. As an application we show that any tensor-stable positive map that is not completely positive yields an upper bound on the quantum channel capacity, which for the transposition map gives the well-known cb-norm bound. We furthermore show that the latter is an upper bound even for the LOCC-assisted quantum capacity, and that moreover it is a strong converse rate for this task.

  2. GERSVIEW: A New Database for Web Mapping

    E-Print Network [OSTI]

    Gilbes, Fernando

    GERSVIEW: A New Database for Web Mapping William J. Hernández, M.S. Graduate Student Department structure Develop an ArcIMS Web Mapping Interface Present spatial data created by the Geological and Environmental Remote Sensing Laboratory (GERS) Projects via ArcIMS. Create GERSVIEW home web page (launch site

  3. GERSVIEW: A New Database for Web Mapping

    E-Print Network [OSTI]

    Gilbes, Fernando

    GERSVIEW: A New Database for Web Mapping William J. Hernández, M.S. Graduate Student DepartmentIMS Web Mapping Interface Present spatial data created by the Geological and Environmental Remote Sensing Laboratory (GERS) Projects via ArcIMS. Create GERSVIEW home web page (launch site) #12;ArcIMS ArcIMS 9

  4. GROUNDWATER MAPPING AND ASSESSMENT IN BRITISH COLUMBIA

    E-Print Network [OSTI]

    #12;r GROUNDWATER MAPPING AND ASSESSMENT IN BRITISH COLUMBIA VOLUME I: Review and Recommendations and Turner Groundwater Consultants P.O. Box 43001 Victoria, B.C. V8X 3G2 October 1993 #12;DISCLAIMER of Groundwater Information in British Columbia 6 2.1 Sources of Groundwater Mapping and Assessment Information 6

  5. Campus Parking Map University of California

    E-Print Network [OSTI]

    Lee, Seung-Wuk

    Campus Parking Map University of California BERKELEY #12;Campus Building Locations Parking Lots/Garages Building Name Grid Building Name(Continued) Grid Building Name(Continued) Grid Grid Parking Information parking spaces are located throughout the campus; areas are indicated on the map on reverse. Bicycles

  6. Soil Survey and Ecological Sites: Integrated Map Unit Design and

    E-Print Network [OSTI]

    Intensity Methods Map units Order 1 Grid mapping 2 (detailed) Confirm boundary and components 3 (broad) Confirm dominant components 4 Reconnaissance #12;Intensity Methods Map units Order 1 Grid mapping SingleSoil Survey and Ecological Sites: Integrated Map Unit Design and Interpretation Arlene J. Tugel

  7. Feasibility Grids for Localization and Mapping in Crowded Urban Scenes

    E-Print Network [OSTI]

    Wang, Chieh-Chih "Bob"

    Feasibility Grids for Localization and Mapping in Crowded Urban Scenes Shao-Wen Yang and Chieh mapping method is the occupancy grid mapping algorithm [1] which represents maps by a collection of fine-grained grid cells that model the occupancy states of the environment. Occupancy grid mapping representation

  8. Title: Open Street Map shapefile downloads Data Creator /

    E-Print Network [OSTI]

    Title: Open Street Map shapefile downloads Data Creator / Copyright Owner: OpenStreetMap Publisher applications. Data Type: Vector Digital Data Format: Shapefile Datum / Map Projection: WGS84 Resolution: N site: http://downloads.cloudmade.com/ Citation: OpenStreetMap. "OpenStreetMap shapefile downloads

  9. Application of the Yoshida-Ruth Techniques to Implicit Integration and Multi-Map Explicit Integration

    E-Print Network [OSTI]

    Forest, E.

    2011-01-01T23:59:59.000Z

    with the method of integration. This can be done withwe can use a standard integration method. Finally, it isexplicit and implicit integration. References R.D. Ruth ,

  10. Evaluation of High Dynamic Range Photography as a Luminance Mapping Technique

    E-Print Network [OSTI]

    Inanici, Mehlika; Galvin, Jim

    2004-01-01T23:59:59.000Z

    Illuminance Meters and Luminance Meters: Performance,9505 ? B In calculating luminance (L), CIE Y is multipliedB. and Dumortier, D. “Luminance Calibration of the Nikon

  11. Field of view extension and truncation correction for MR-based human attenuation correction in simultaneous MR/PET imaging

    SciTech Connect (OSTI)

    Blumhagen, Jan O., E-mail: janole.blumhagen@siemens.com; Ladebeck, Ralf; Fenchel, Matthias [Magnetic Resonance, Siemens AG Healthcare Sector, Erlangen 91052 (Germany)] [Magnetic Resonance, Siemens AG Healthcare Sector, Erlangen 91052 (Germany); Braun, Harald; Quick, Harald H. [Institute of Medical Physics, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen 91052 (Germany)] [Institute of Medical Physics, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen 91052 (Germany); Faul, David [Siemens Medical Solutions, New York, New York 10015 (United States)] [Siemens Medical Solutions, New York, New York 10015 (United States); Scheffler, Klaus [MRC Department, Max Planck Institute for Biological Cybernetics, Tübingen 72076, Germany and Department of Biomedical Magnetic Resonance, University Hospital Tübingen, Tübingen 72076 (Germany)] [MRC Department, Max Planck Institute for Biological Cybernetics, Tübingen 72076, Germany and Department of Biomedical Magnetic Resonance, University Hospital Tübingen, Tübingen 72076 (Germany)

    2014-02-15T23:59:59.000Z

    Purpose: In quantitative PET imaging, it is critical to accurately measure and compensate for the attenuation of the photons absorbed in the tissue. While in PET/CT the linear attenuation coefficients can be easily determined from a low-dose CT-based transmission scan, in whole-body MR/PET the computation of the linear attenuation coefficients is based on the MR data. However, a constraint of the MR-based attenuation correction (AC) is the MR-inherent field-of-view (FoV) limitation due to static magnetic field (B{sub 0}) inhomogeneities and gradient nonlinearities. Therefore, the MR-based human AC map may be truncated or geometrically distorted toward the edges of the FoV and, consequently, the PET reconstruction with MR-based AC may be biased. This is especially of impact laterally where the patient arms rest beside the body and are not fully considered. Methods: A method is proposed to extend the MR FoV by determining an optimal readout gradient field which locally compensates B{sub 0} inhomogeneities and gradient nonlinearities. This technique was used to reduce truncation in AC maps of 12 patients, and the impact on the PET quantification was analyzed and compared to truncated data without applying the FoV extension and additionally to an established approach of PET-based FoV extension. Results: The truncation artifacts in the MR-based AC maps were successfully reduced in all patients, and the mean body volume was thereby increased by 5.4%. In some cases large patient-dependent changes in SUV of up to 30% were observed in individual lesions when compared to the standard truncated attenuation map. Conclusions: The proposed technique successfully extends the MR FoV in MR-based attenuation correction and shows an improvement of PET quantification in whole-body MR/PET hybrid imaging. In comparison to the PET-based completion of the truncated body contour, the proposed method is also applicable to specialized PET tracers with little uptake in the arms and might reduce the computation time by obviating the need for iterative calculations of the PET emission data beyond those required for reconstructing images.

  12. Task mapping for non-contiguous allocations.

    SciTech Connect (OSTI)

    Leung, Vitus Joseph; Bunde, David P. [Knox College, Galesburg, IL; Ebbers, Johnathan [Knox College, Galesburg, IL; Price, Nicholas W. [Knox College, Galesburg, IL; Swank, Matthew [Knox College, Galesburg, IL; Feer, Stefan P. [3M Health Information Systems, Inc., Wallingford, CT; Rhodes, Zachary D. [Allstate Corporation, Northbrook, IL

    2013-02-01T23:59:59.000Z

    This paper examines task mapping algorithms for non-contiguously allocated parallel jobs. Several studies have shown that task placement affects job running time for both contiguously and non-contiguously allocated jobs. Traditionally, work on task mapping either uses a very general model where the job has an arbitrary communication pattern or assumes that jobs are allocated contiguously, making them completely isolated from each other. A middle ground between these two cases is the mapping problem for non-contiguous jobs having a specific communication pattern. We propose several task mapping algorithms for jobs with a stencil communication pattern and evaluate them using experiments and simulations. Our strategies improve the running time of a MiniApp by as much as 30% over a baseline strategy. Furthermore, this improvement increases markedly with the job size, demonstrating the importance of task mapping as systems grow toward exascale.

  13. Density equalizing map projections: A new algorithm

    SciTech Connect (OSTI)

    Merrill, D.W.; Selvin, S.; Mohr, M.S.

    1992-02-01T23:59:59.000Z

    In the study of geographic disease clusters, an alternative to traditional methods based on rates is to analyze case locations on a transformed map in which population density is everywhere equal. Although the analyst`s task is thereby simplified, the specification of the density equalizing map projection (DEMP) itself is not simple and continues to be the subject of considerable research. Here a new DEMP algorithm is described, which avoids some of the difficulties of earlier approaches. The new algorithm (a) avoids illegal overlapping of transformed polygons; (b) finds the unique solution that minimizes map distortion; (c) provides constant magnification over each map polygon; (d) defines a continuous transformation over the entire map domain; (e) defines an inverse transformation; (f) can accept optional constraints such as fixed boundaries; and (g) can use commercially supported minimization software. Work is continuing to improve computing efficiency and improve the algorithm.

  14. Density equalizing map projections: A new algorithm

    SciTech Connect (OSTI)

    Merrill, D.W.; Selvin, S.; Mohr, M.S.

    1992-02-01T23:59:59.000Z

    In the study of geographic disease clusters, an alternative to traditional methods based on rates is to analyze case locations on a transformed map in which population density is everywhere equal. Although the analyst's task is thereby simplified, the specification of the density equalizing map projection (DEMP) itself is not simple and continues to be the subject of considerable research. Here a new DEMP algorithm is described, which avoids some of the difficulties of earlier approaches. The new algorithm (a) avoids illegal overlapping of transformed polygons; (b) finds the unique solution that minimizes map distortion; (c) provides constant magnification over each map polygon; (d) defines a continuous transformation over the entire map domain; (e) defines an inverse transformation; (f) can accept optional constraints such as fixed boundaries; and (g) can use commercially supported minimization software. Work is continuing to improve computing efficiency and improve the algorithm.

  15. Observations from Australasia using the Gravitational Microlensing Technique

    E-Print Network [OSTI]

    Philip Yock

    1999-08-18T23:59:59.000Z

    The new astronomical technique of gravitational microlensing enables measurements of high precision to be made in certain circumstances. Useful advances have been made in the fields of galactic astronomy, stellar astronomy and planetary science. The technique is best suited to the southern sky, and several observations have been made from Australasia. A sample of these observations is described here. A case is also made for a telescope at the Antarctic dedicated to gravitational microlensing.

  16. Cache Energy Optimization Techniques For Modern Processors

    SciTech Connect (OSTI)

    Mittal, Sparsh [ORNL] ORNL

    2013-01-01T23:59:59.000Z

    Modern multicore processors are employing large last-level caches, for example Intel's E7-8800 processor uses 24MB L3 cache. Further, with each CMOS technology generation, leakage energy has been dramatically increasing and hence, leakage energy is expected to become a major source of energy dissipation, especially in last-level caches (LLCs). The conventional schemes of cache energy saving either aim at saving dynamic energy or are based on properties specific to first-level caches, and thus these schemes have limited utility for last-level caches. Further, several other techniques require offline profiling or per-application tuning and hence are not suitable for product systems. In this book, we present novel cache leakage energy saving schemes for single-core and multicore systems; desktop, QoS, real-time and server systems. Also, we present cache energy saving techniques for caches designed with both conventional SRAM devices and emerging non-volatile devices such as STT-RAM (spin-torque transfer RAM). We present software-controlled, hardware-assisted techniques which use dynamic cache reconfiguration to configure the cache to the most energy efficient configuration while keeping the performance loss bounded. To profile and test a large number of potential configurations, we utilize low-overhead, micro-architecture components, which can be easily integrated into modern processor chips. We adopt a system-wide approach to save energy to ensure that cache reconfiguration does not increase energy consumption of other components of the processor. We have compared our techniques with state-of-the-art techniques and have found that our techniques outperform them in terms of energy efficiency and other relevant metrics. The techniques presented in this book have important applications in improving energy-efficiency of higher-end embedded, desktop, QoS, real-time, server processors and multitasking systems. This book is intended to be a valuable guide for both newcomers and veterans in the field of cache power management. It will help graduate students, CAD tool developers and designers in understanding the need of energy efficiency in modern computing systems. Further, it will be useful for researchers in gaining insights into algorithms and techniques for micro-architectural and system-level energy optimization using dynamic cache reconfiguration. We sincerely believe that the ``food for thought'' presented in this book will inspire the readers to develop even better ideas for designing ``green'' processors of tomorrow.

  17. A Simple Swap Technique and Enhanced GTT Location Database Management Kuo-Hsing Chiang Nirmala Shenoy

    E-Print Network [OSTI]

    Shenoy, Nirmala

    implemented in the current mobile networks are ETSI GSM MAP [1] and EIA/TIA IS-41 [2]. The two- level databaseA Simple Swap Technique and Enhanced GTT Location Database Management Scheme Kuo-Hsing Chiang and provides comparison results with other location database management schemes. The performance results

  18. Accelerated Implementation of the S-MRTD Technique Using Graphics Processor Units

    E-Print Network [OSTI]

    1073 Accelerated Implementation of the S-MRTD Technique Using Graphics Processor Units G.Baron, E MRTD (S-MRTD), can be dramatically accelerated, through its im- plementation in commodity graphics hardware. This imple- mentation is achieved by mapping the numerical operations of S-MRTD to graphics

  19. Techniques for modeling and analyzing RNA and protein folding energy landscapes

    E-Print Network [OSTI]

    Tang, Xinyu

    2009-05-15T23:59:59.000Z

    techniques can be used to study RNA and protein fold- ing kinetics such as population kinetics, folding rates, and the folding of particular subsequences. In particular, a map-based Master Equation (MME) method can be used to analyze the population kinetics...

  20. Smooth Field Theories and Homotopy Field Theories

    E-Print Network [OSTI]

    Wilder, Alan Cameron

    2011-01-01T23:59:59.000Z

    1 . . . . . . . . 4 Categories of Field Theories 4.1 Functorto super symmetric field theories. CRM Proceedings and0-dimensional super symmetric field theories. preprint 2008.

  1. Map of Erosion Risk (C2)3 Vegetation Indices and Map of Minimum Forested Area4 5&

    E-Print Network [OSTI]

    are required forest areas for Vietnam Erosion Risk Map Cover types C1 Natural Forests >1.7 Plantation forest.2 (ESRI, 2008), to generate a map of required protective forest area for Vietnam. (3) (4) (5Results Map of Erosion Risk (C2)3 Vegetation Indices and Map of Minimum Forested Area4 5& · Map

  2. 2007 Yerkes Summer Institute Day Laboratory -Mapping the Yerkes Grounds 26 A Google map of the Williams Bay area

    E-Print Network [OSTI]

    Collar, Juan I.

    , a coordinate system appears as a simple grid overlaid on the map (see figure below). Some specialized maps/Columbus to State/55th . An example map of an imaginary Junk Food Island. The grid is a basic coordinate system2007 Yerkes Summer Institute Day Laboratory - Mapping the Yerkes Grounds 26 A Google map

  3. Study atom-vacuum interaction by the weak measurement technique

    E-Print Network [OSTI]

    M. Zhang; S. Y. Zhu

    2014-10-27T23:59:59.000Z

    Quantum weak measurement attracts much interests recently [Rev. Mod. Phys. 86, 307 (2014)], as it could amplify some weak signals and provide a technique to observe the nonclassical phenomenons. Here, we apply this technique to study the interaction between the free atoms and the vacuum in a cavity. Due to the gradient field in the vacuum cavity, the external orbital motions and the internal electronic states of the atoms can be weakly coupled via the atom-field electric-dipole interaction. We show an interesting phenomenon that, within the properly post-selected internal states, the weak atom-vacuum interaction could generate a large change to the external motions of atoms.

  4. Fundamentals and Techniques of Nonimaging

    SciTech Connect (OSTI)

    O'Gallagher, J. J.; Winston, R.

    2003-07-10T23:59:59.000Z

    This is the final report describing a long term basic research program in nonimaging optics that has led to major advances in important areas, including solar energy, fiber optics, illumination techniques, light detectors, and a great many other applications. The term ''nonimaging optics'' refers to the optics of extended sources in systems for which image forming is not important, but effective and efficient collection, concentration, transport, and distribution of light energy is. Although some of the most widely known developments of the early concepts have been in the field of solar energy, a broad variety of other uses have emerged. Most important, under the auspices of this program in fundamental research in nonimaging optics established at the University of Chicago with support from the Office of Basic Energy Sciences at the Department of Energy, the field has become very dynamic, with new ideas and concepts continuing to develop, while applications of the early concepts continue to be pursued. While the subject began as part of classical geometrical optics, it has been extended subsequently to the wave optics domain. Particularly relevant to potential new research directions are recent developments in the formalism of statistical and wave optics, which may be important in understanding energy transport on the nanoscale. Nonimaging optics permits the design of optical systems that achieve the maximum possible concentration allowed by physical conservation laws. The earliest designs were constructed by optimizing the collection of the extreme rays from a source to the desired target: the so-called ''edge-ray'' principle. Later, new concentrator types were generated by placing reflectors along the flow lines of the ''vector flux'' emanating from lambertian emitters in various geometries. A few years ago, a new development occurred with the discovery that making the design edge-ray a functional of some other system parameter permits the construction of whole new classes of devices with greatly expanded capabilities compared to conventional approaches. These ''tailored edge-ray'' designs have dramatically broadened the range of geometries in which nonimaging optics can provide a significant performance improvement. Considerable progress continues to be made in furthering the incorporation of nonimaging secondaries into practical high concentration and ultra-high concentration solar collector systems. In parallel with the continuing development of nonimaging geometrical optics, our group has been working to develop an understanding of certain fundamental physical optics concepts in the same context. In particular, our study of the behavior of classical radiance in nonimaging systems, has revealed some fundamentally important new understandings that we have pursued both theoretically and experimentally. The field is still relatively new and is rapidly gaining widespread recognition because it fuels many industrial applications. Because of this, during the final years of the project, our group at Chicago has been working more closely with a team of industrial scientists from Science Applications International Corporation (SAIC) at first informally, and later more formally, beginning in 1998, under a formal program initiated by the Department of Energy and incrementally funded through this existing grant. This collaboration has been very fruitful and has led to new conceptual breakthroughs which have provided the foundation for further exciting growth. Many of these concepts are described in some detail in the report.

  5. 3-D MAPPING TECHNOLOGIES FOR HIGH LEVEL WASTE TANKS

    SciTech Connect (OSTI)

    Marzolf, A.; Folsom, M.

    2010-08-31T23:59:59.000Z

    This research investigated four techniques that could be applicable for mapping of solids remaining in radioactive waste tanks at the Savannah River Site: stereo vision, LIDAR, flash LIDAR, and Structure from Motion (SfM). Stereo vision is the least appropriate technique for the solids mapping application. Although the equipment cost is low and repackaging would be fairly simple, the algorithms to create a 3D image from stereo vision would require significant further development and may not even be applicable since stereo vision works by finding disparity in feature point locations from the images taken by the cameras. When minimal variation in visual texture exists for an area of interest, it becomes difficult for the software to detect correspondences for that object. SfM appears to be appropriate for solids mapping in waste tanks. However, equipment development would be required for positioning and movement of the camera in the tank space to enable capturing a sequence of images of the scene. Since SfM requires the identification of distinctive features and associates those features to their corresponding instantiations in the other image frames, mockup testing would be required to determine the applicability of SfM technology for mapping of waste in tanks. There may be too few features to track between image frame sequences to employ the SfM technology since uniform appearance may exist when viewing the remaining solids in the interior of the waste tanks. Although scanning LIDAR appears to be an adequate solution, the expense of the equipment ($80,000-$120,000) and the need for further development to allow tank deployment may prohibit utilizing this technology. The development would include repackaging of equipment to permit deployment through the 4-inch access ports and to keep the equipment relatively uncontaminated to allow use in additional tanks. 3D flash LIDAR has a number of advantages over stereo vision, scanning LIDAR, and SfM, including full frame time-of-flight data (3D image) collected with a single laser pulse, high frame rates, direct calculation of range, blur-free images without motion distortion, no need for precision scanning mechanisms, ability to combine 3D flash LIDAR with 2D cameras for 2D texture over 3D depth, and no moving parts. The major disadvantage of the 3D flash LIDAR camera is the cost of approximately $150,000, not including the software development time and repackaging of the camera for deployment in the waste tanks.

  6. Video-rate terahertz electric-field vector imaging

    SciTech Connect (OSTI)

    Takai, Mayuko; Takeda, Masatoshi; Sasaki, Manabu; Tachizaki, Takehiro; Yasumatsu, Naoya; Watanabe, Shinichi, E-mail: watanabe@phys.keio.ac.jp [Department of Physics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522 (Japan)

    2014-10-13T23:59:59.000Z

    We present an experimental setup to dramatically reduce a measurement time for obtaining spatial distributions of terahertz electric-field (E-field) vectors. The method utilizes the electro-optic sampling, and we use a charge-coupled device to detect a spatial distribution of the probe beam polarization rotation by the E-field-induced Pockels effect in a ?110?-oriented ZnTe crystal. A quick rotation of the ZnTe crystal allows analyzing the terahertz E-field direction at each image position, and the terahertz E-field vector mapping at a fixed position of an optical delay line is achieved within 21 ms. Video-rate mapping of terahertz E-field vectors is likely to be useful for achieving real-time sensing of terahertz vector beams, vector vortices, and surface topography. The method is also useful for a fast polarization analysis of terahertz beams.

  7. Low Temperature Material Bonding Technique

    DOE Patents [OSTI]

    Ramsey, J. Michael (Knoxville, TN); Foote, Robert S. (Oak Ridge, TN)

    2000-10-10T23:59:59.000Z

    A method of performing a lower temperature bonding technique to bond together two mating pieces of glass includes applying a sodium silicate aqueous solution between the two pieces.

  8. Low temperature material bonding technique

    DOE Patents [OSTI]

    Ramsey, J. Michael (Knoxville, TN); Foote, Robert S. (Oak Ridge, TN)

    2002-02-12T23:59:59.000Z

    A method of performing a lower temperature bonding technique to bond together two mating pieces of glass includes applying a sodium silicate aqueous solution between the two pieces.

  9. LOW-FREQUENCY IMAGING OF FIELDS AT HIGH GALACTIC LATITUDE WITH THE MURCHISON WIDEFIELD ARRAY 32 ELEMENT PROTOTYPE

    SciTech Connect (OSTI)

    Williams, Christopher L.; Hewitt, Jacqueline N.; Levine, Alan M. [MIT Kavli Institute for Astrophysics and Space Research, Cambridge, MA (United States); De Oliveira-Costa, Angelica; Hernquist, Lars L.; Bernardi, Gianni [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States); Bowman, Judd D. [School of Earth and Space Exploration, Arizona State University, Tempe, AZ (United States); Briggs, Frank H. [Research School of Astronomy and Astrophysics, The Australian National University, Canberra (Australia); Gaensler, B. M.; Mitchell, Daniel A.; Subrahmanyan, Ravi; Sadler, Elaine M. [ARC Centre of Excellence for All-sky Astrophysics (CAASTRO) (Australia); Morales, Miguel F. [Department of Physics, University of Washington, Seattle, WA (United States); Sethi, Shiv K. [Raman Research Institute, Bangalore (India); Arcus, Wayne; Crosse, Brian W. [International Centre for Radio Astronomy Research, Curtin University, Perth (Australia); Barnes, David G. [Center for Astrophysics and Supercomputing, Swinburne University of Technology, Melbourne (Australia); Bunton, John D. [CSIRO Astronomy and Space Science, Epping (Australia); Cappallo, Roger C.; Corey, Brian E., E-mail: clmw@mit.edu [MIT Haystack Observatory, Westford, MA (United States); and others

    2012-08-10T23:59:59.000Z

    The Murchison Widefield Array (MWA) is a new low-frequency, wide-field-of-view radio interferometer under development at the Murchison Radio-astronomy Observatory in Western Australia. We have used a 32 element MWA prototype interferometer (MWA-32T) to observe two 50 Degree-Sign diameter fields in the southern sky, covering a total of {approx}2700 deg{sup 2}, in order to evaluate the performance of the MWA-32T, to develop techniques for epoch of reionization experiments, and to make measurements of astronomical foregrounds. We developed a calibration and imaging pipeline for the MWA-32T, and used it to produce {approx}15' angular resolution maps of the two fields in the 110-200 MHz band. We perform a blind source extraction using these confusion-limited images, and detect 655 sources at high significance with an additional 871 lower significance source candidates. We compare these sources with existing low-frequency radio surveys in order to assess the MWA-32T system performance, wide-field analysis algorithms, and catalog quality. Our source catalog is found to agree well with existing low-frequency surveys in these regions of the sky and with statistical distributions of point sources derived from Northern Hemisphere surveys; it represents one of the deepest surveys to date of this sky field in the 110-200 MHz band.

  10. Variations in Map Products Demonstrated During the FRMAC Fukushima Daiichi Response

    SciTech Connect (OSTI)

    Pemberton, W. J.

    2012-04-03T23:59:59.000Z

    This presentation provides a brief summary of the Fukushima Daiichi disaster, discussion on map uses and production, early phase maps, intermediate phase maps, and late phase maps.

  11. Wind: wind power density maps at 50 m above ground and 1km resolution...

    Open Energy Info (EERE)

    PDF maps of Eastern China wind mapping. (Purpose): To provide information on the wind resource potential in eastern China. Includes maps of full mapping region, and 15...

  12. 5. Wavelengths and periods of field motions

    E-Print Network [OSTI]

    Finlay, Christopher

    . Using a technique based on the Radon transform [2], we determined the amount of power propagating5. Wavelengths and periods of field motions 2D frequency-wavenumber (FK) power spectra were of the large scale magnetic field at the surface of the core. Here we deconstruct such a model (gufm1

  13. Mapping of complex marine environments using an unmanned surface craft

    E-Print Network [OSTI]

    Leedekerken, Jacques Chadwick

    2011-01-01T23:59:59.000Z

    Recent technology has combined accurate GPS localization with mapping to build 3D maps in a diverse range of terrestrial environments, but the mapping of marine environments lags behind. This is particularly true in shallow ...

  14. eSales Interactive Mapping -Viewing and Printing Introduction

    E-Print Network [OSTI]

    eSales Interactive Mapping - Viewing and Printing Introduction Our eSales system includes an integrated interactive map facility. This allows you to view and print maps for all lots on offer. Various

  15. Using Maps to Predict Solar Futures | Department of Energy

    Office of Environmental Management (EM)

    Using Maps to Predict Solar Futures Using Maps to Predict Solar Futures June 19, 2015 - 1:43pm Addthis Using Maps to Predict Solar Futures Dr. Lidija Sekaric Dr. Lidija Sekaric...

  16. Technology Forum Map and List of Awardees' Posters and Exhibits...

    Office of Environmental Management (EM)

    Technology Forum Map and List of Awardees' Posters and Exhibits Technology Forum Map and List of Awardees' Posters and Exhibits Technology Forum map and list of exhibits.pdf More...

  17. College Students‘ GIS Spatial Concept Knowledge Assessed by Concept Maps

    E-Print Network [OSTI]

    Oda, Katsuhiko

    2012-07-16T23:59:59.000Z

    an introductory-level GIS course to create concept maps about space and revised their concept maps in three experiment sessions. For the first question, the researcher scored the sixty obtained concept maps and statistically analyzed those scores to examine...

  18. Optimal Path Generation for Monocular Simultaneous Localization and Mapping 

    E-Print Network [OSTI]

    Roorda, Timothy Isaac

    2014-09-01T23:59:59.000Z

    Monocular Simultaneous Localization and Mapping (MonoSLAM), a derivative of Simultaneous Localization and Mapping (SLAM), is a navigation method for autonomous vehicles that uses only an inertial measurement unit and a camera to map the environment...

  19. Optimal Path Generation for Monocular Simultaneous Localization and Mapping

    E-Print Network [OSTI]

    Roorda, Timothy Isaac

    2014-09-01T23:59:59.000Z

    Monocular Simultaneous Localization and Mapping (MonoSLAM), a derivative of Simultaneous Localization and Mapping (SLAM), is a navigation method for autonomous vehicles that uses only an inertial measurement unit and a camera to map the environment...

  20. Beyond the Model and Into the Map: A Protein Abstract

    E-Print Network [OSTI]

    Fraser, James Solomon

    2010-01-01T23:59:59.000Z

    the atomic peak height is map-grid resolution dependent anda 2F o -F c Bhat omit map with a grid spacing of one-thirdincreasing grid sampling leads to increasing maps sizes that

  1. Using Process Mapping to Facilitate Positive Library Change

    E-Print Network [OSTI]

    Rosen, Jay

    Using Process Mapping to Facilitate Positive Library Change Emily Campbell Special Projects Librarian for Collections University of Michigan #12;What is Process Mapping? "Business process mapping organization's objectives to make sure that all processes are aligned with the company's values

  2. Arecibo HI Mapping of a Large Sample of Dwarf Irregular Galaxies

    E-Print Network [OSTI]

    G. L. Hoffman; E. E. Salpeter; B. Farhat; T. Roos; H. Williams; G. Helou

    1996-01-30T23:59:59.000Z

    Neutral hydrogen mapping of 70 dwarf irregular (Sm, Im and BCD) galaxies is reported, with position-velocity contour maps presented for those resolved by the Arecibo beam. The galaxies were selected either from the Virgo Cluster Catalog, from similarly identified field galaxies, or from a distance-limited sample within the Arecibo declination range. We do not find any isolated dwarfs with a larger HI to optical radius ratio than DDO 154; the ``protogalaxy'' HI 1225+01 (Giovanelli \\& Haynes 1989) continues to be a unique object among dwarfs that have been mapped in HI. For all dwarfs with significant rotation we are able to determine the sense of the spin. For a number of better-resolved dwarfs we are able to determine rotation curves, in most cases extending well beyond the last measured point in available synthesis array maps. Correlations among the several measures of galaxy size and mass are studied; in Paper II (Salpeter \\& Hoffman 1996) we combine these data with those for the set of all available mapped dwarf irregular galaxies and for mapped spirals spanning a similar range of redshifts to investigate variations in Tully-Fisher relations and in surface densities as functions of galaxy size and luminosity or mass.

  3. Natural resource validation: A primer on concepts and techniques

    SciTech Connect (OSTI)

    Ulibarri, C.A.; Wellman, K.F.

    1997-07-01T23:59:59.000Z

    Natural resource valuation has always had a fundamental role in the practice of cost-benefit analysis of health, safety, and environmental issues. The authors provide an objective overview of resource valuation techniques and describe their potential role in environmental restoration/waste management (ER/WM) activities at federal facilities. This handbook considers five general classes of valuation techniques: (1) market-based techniques, which rely on historical information on market prices and transactions to determine resource values; (2) nonmarket techniques that rely on indirect estimates of resource values; (3) nonmarket techniques that are based on direct estimates of resource values; (4) cross-cutting valuation techniques, which combine elements of one or more of these methods; and (5) ecological valuation techniques used in the emerging field of ecological economics. The various valuation techniques under consideration are described by highlighting their applicability in environmental management and regulation. The handbook also addresses key unresolved issues in the application of valuation techniques generally, including discounting future values, incorporating environmental equity concerns, and concerns over the uncertainties in the measurement of natural resource values and environmental risk.

  4. Maps of crude oil futures

    SciTech Connect (OSTI)

    Masters, C.D.

    1986-05-01T23:59:59.000Z

    The Crude Oil Futures presentation shows their concept of the quantity of oil possibly present (the combination of conventional demonstrated reserves plus undiscovered recoverable resources) within the areas outlined. The Crude Oil Futures is not as an exploration map but as a perspective on the distribution of world oil. The occurrence of oil is, after all, a function of particular geologic factors that are not everywhere present. Furthermore, large amounts of oil can occur only where the several necessary independent variables (geologic factors) combine optimally. In the Western Hemisphere, similar minimal crude oil futures are shown for North America and South America. This similarity is a reflection not of similar geology but rather of the fact that most of the oil has already been produced from North America, whereas South America as a whole (except for Venezuela) possesses a geology less likely to produce oil. In Europe, Africa, and Asia, four regions are dominant: the Middle East, Libya, North Sea, and west Siberia. Paleogeography and source rock distribution were keys to this distribution - the Middle East and Libya reflecting the Tethyan association, and the North Sea and west Siberia benefitting from the Late Jurassic marine transgression into geographic environments where ocean circulation was restricted by tectonic events.

  5. Periodic Cluster Mutations and Related Integrable Maps

    E-Print Network [OSTI]

    Allan P Fordy

    2014-03-31T23:59:59.000Z

    One of the remarkable properties of cluster algebras is that any cluster, obtained from a sequence of mutations from an initial cluster, can be written as a Laurent polynomial in the initial cluster (known as the "Laurent phenomenon"). There are many nonlinear recurrences which exhibit the Laurent phenomenon and thus unexpectedly generate integer sequences. The mutation of a typical quiver will not generate a recurrence, but rather an erratic sequence of exchange relations. How do we "design" a quiver which gives rise to a given recurrence? A key role is played by the concept of "periodic cluster mutation", introduced in 2009. Each recurrence corresponds to a finite dimensional map. In the context of cluster mutations, these are called "cluster maps". What properties do cluster maps have? Are they integrable in some standard sense? In this review I describe how integrable maps arise in the context of cluster mutations. I first explain the concept of "periodic cluster mutation", giving some classification results. I then give a review of what is meant by an integrable map and apply this to cluster maps. Two classes of integrable maps are related to interesting monodromy problems, which generate interesting Poisson algebras of functions, used to prove complete integrability and a linearisation. A connections to the Hirota-Miwa equation is explained.

  6. Lyapunov exponent and natural invariant density determination of chaotic maps: An iterative maximum entropy ansatz

    E-Print Network [OSTI]

    Parthapratim Biswas; H. Shimoyama; L. R. Mead

    2009-10-23T23:59:59.000Z

    We apply the maximum entropy principle to construct the natural invariant density and Lyapunov exponent of one-dimensional chaotic maps. Using a novel function reconstruction technique that is based on the solution of Hausdorff moment problem via maximizing Shannon entropy, we estimate the invariant density and the Lyapunov exponent of nonlinear maps in one-dimension from a knowledge of finite number of moments. The accuracy and the stability of the algorithm are illustrated by comparing our results to a number of nonlinear maps for which the exact analytical results are available. Furthermore, we also consider a very complex example for which no exact analytical result for invariant density is available. A comparison of our results to those available in the literature is also discussed.

  7. Mapping Particle Charges in Battery Electrodes

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electronEnergy Manufacturing EnergyMappingMappingMapping

  8. anatomical mapping analysis: Topics by E-print Network

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

    Markov Interval Maps CERN Preprints Summary: We set up a multiresolution analysis on fractal sets derived from limit sets of Markov Interval Maps. For this we consider the ...

  9. Assessment and Mapping of the Riverine Hydrokinetic Resource...

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

    Assessment and Mapping of the Riverine Hydrokinetic Resource in the Continental United States Assessment and Mapping of the Riverine Hydrokinetic Resource in the Continental United...

  10. Geologic map of the Sulphur Springs Area, Valles Caldera Geothermal...

    Open Energy Info (EERE)

    Goff,J. N. Gardner. Geologic map of the Sulphur Springs Area, Valles Caldera Geothermal System, New Mexico. Map. Place of publication not provided. Los Alamos National...

  11. Dual spatial maps of transcript and protein abundance in the...

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

    Dual spatial maps of transcript and protein abundance in the mouse brain. Dual spatial maps of transcript and protein abundance in the mouse brain. Abstract: Integrating...

  12. Road Map Team Proposal Form Proposal: CAR29

    E-Print Network [OSTI]

    Suzuki, Masatsugu

    Road Map Team Proposal Form Proposal: CAR29 1: Road Map Team Name, such as solar energy and fuel cell technologies, energy storage methods and improved

  13. Renewable Energy Resource Maps and Screening Tools | Department...

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

    Resource Maps and Screening Tools Renewable Energy Resource Maps and Screening Tools Renewable energy resources are available across the United States but vary greatly depending on...

  14. africa mapping progress: Topics by E-print Network

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

    Hu representation called progressive significance map (prog-sig-map) for error-resilient SPC. It structures coding methods, such as arithmetic coding) takes advantage of the...

  15. THE EVALUATION MAP AND HOMOLOGY Daniel H. Gottlieb

    E-Print Network [OSTI]

    tant role in the study of evaluation maps of mapping spaces other than XX . The ... The preparation of this paper was supported in part by the National Science.

  16. Space Mapping: Models, Sensitivities, and Trust-Regions Methods 1 ...

    E-Print Network [OSTI]

    We consider also a di erent perspective of space mapping and apply it, ... built by composition of the space mapping and the coarse model is a regular function.

  17. Exploring the Wind Manufacturing Map | Department of Energy

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

    Office of Energy Efficiency and Renewable Energy. Addthis Related Articles This map shows wind potential capacity for turbine hub heights at 140 meters. Mapping the Frontier of New...

  18. Mathematical quantization of Hamiltonian field theories

    E-Print Network [OSTI]

    A. V. Stoyanovsky

    2015-02-04T23:59:59.000Z

    We define the renormalized evolution operator of the Schr\\"odinger equation in the infinite dimensional Weyl-Moyal algebra during a time interval for a wide class of Hamiltonians depending on time. This leads to a mathematical definition of quantum field theory $S$-matrix and Green functions. We show that for renormalizable field theories, our theory yields the renormalized perturbation series of perturbative quantum field theory. All the results are based on the Feynman graph series technique.

  19. Entomology 489 Field Entomology Field Project Guide

    E-Print Network [OSTI]

    Behmer, Spencer T.

    with information, people, materials). Field Projects (your project should...) FEntomology 489 ­ Field Entomology Field Project Guide A small-group field project is required for ENTO 489 ­ Field Entomology. This guide provides general information about the field-project

  20. 1992-93 Results of geomorphological and field studies Volcanic Studies Program, Yucca Mountain Project

    SciTech Connect (OSTI)

    Wells, S.G.

    1993-10-01T23:59:59.000Z

    Field mapping and stratigraphic studies were completed of the Black Tank volcanic center, which represents the southwestern most eruptive center in the Cima volcanic field of California. The results of this mapping are presented. Contacts between volcanic units and geomorphic features were field checked, incorporating data from eight field trenches as well as several exposures along Black Tank Wash. Within each of the eight trenches, logs were measured and stratigraphic sections were described. These data indicate that three, temporally separate volcanic eruptions occurred at the Black Tank center. The field evidence for significant time breaks between each stratigraphic unit is the presence of soil and pavement-bounded unconformities.