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Note: This page contains sample records for the topic "obtain finer spatial" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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1

Impact of sludge mechanical behaviour on spatial distribution parameters obtained with centrifugal spreader  

E-Print Network (OSTI)

1 Impact of sludge mechanical behaviour on spatial distribution parameters obtained to analyse organic spreading and opens the way to more developments. Keywords: sludge rheological behaviour a large amount of residues which are spread on agricultural fields. This process of sludge reuse is mainly

Paris-Sud XI, Université de

2

Plant Cell Reports (1999) 19:612 Q Springer-Verlag 1999 T. Ponappa 7 A.E. Brzozowski 7 J.J. Finer  

E-Print Network (OSTI)

by J.M. Widholm T. Ponappa 7 A.E. Brzozowski 7 J.J. Finer (Y) Department of Horticulture and Crop. All of the constructions produced green fluorescence in soybean cultures upon blue light excita- tion is a 238-amino-acid protein that produces green fluo- rescence upon excitation by UV or blue light (Cubitt

Finer, John J.

3

Spatiality of the patch frame Martin H. Escardo  

E-Print Network (OSTI)

Spatiality of the patch frame Mart´in H. Escard´o School of Mathematical and Computational Sciences is referred to as the patch frame. In this short note we show that the patch of a topology is isomorphic to a finer topology on the same set. We also give a point-set construction of the patch topology of a sober

Escardó, Martín

4

SPATIAL TRANSFORMATIONS 1 Running head: Spatial transformations  

E-Print Network (OSTI)

SPATIAL TRANSFORMATIONS 1 Running head: Spatial transformations Multiple Systems for Spatial Imagery: Transformations of Objects and Bodies Jeffrey M. Zacks* and Barbara Tversky * Washington COGNITION & COMPUTATION #12;SPATIAL TRANSFORMATIONS 2 Abstract Problem-solving often requires imagining

Zacks, Jeffrey M.

5

Modeling Spatially Correlated Data in Sensor Networks  

E-Print Network (OSTI)

Modeling Spatially Correlated Data in Sensor Networks APOORVA JINDAL and KONSTANTINOS PSOUNIS of spatially correlated sensor network data. The proposed model is Markovian in nature and can capture on the degree of spatial correlation in data, under real and synthetic traces. The real traces are obtained from

6

Classification of Ding's Schubert Varieties: Finer Rook Equivalence  

E-Print Network (OSTI)

and \\i be related as above. Suppose that f in 7L[x\\,..., xn] lies in some subalgebra 7L\\x\\,..., xm]y where m < n. Then the images of f in Rx and R1' have the same standard form f. Our first extreme case arises when A is an indecomposable partition... the subgroup of permutations fixing {1,.... 77} pointwise. Consider the partial flag variety XN = {flags OcVjC-C^C CN : dim V{ = i} . Let w = w\\ - - wn e S,N be a permutation which is a maximum-length repre sentative for its coset in SN/S{+I,+2v...

Develin, Mike; Martin, Jeremy L.; Reiner, Victor

2007-02-01T23:59:59.000Z

7

Oracle Spatial Data Option Spatial Cartridge Oracle8i SpatialIBM ESRI DB2 Spatial ExtenderInformix Informix Spatial  

E-Print Network (OSTI)

; ---- Oracle Spatial Data Option Spatial Cartridge Oracle8i SpatialIBM ESRI DB2 Spatial ExtenderInformix Informix Spatial Datablade Oracle Oracle8i Spatial Oracle Spatial ----SDO_GEOMETRY SDO_GEOMETRY OracleWeb-Based Three-Dimensional Geo-Referenced Visualization, in Proceedings of International Conference of Spatial

Li, Xiang

8

Robustness of Spatial Micronetworks  

E-Print Network (OSTI)

Power lines, roadways, pipelines and other physical infrastructure are critical to modern society. These structures may be viewed as spatial networks where geographic distances play a role in the functionality and construction cost of links. Traditionally, studies of network robustness have primarily considered the connectedness of large, random networks. Yet for spatial infrastructure physical distances must also play a role in network robustness. Understanding the robustness of small spatial networks is particularly important with the increasing interest in microgrids, small-area distributed power grids that are well suited to using renewable energy resources. We study the random failures of links in small networks where functionality depends on both spatial distance and topological connectedness. By introducing a percolation model where the failure of each link is proportional to its spatial length, we find that, when failures depend on spatial distances, networks are more fragile than expected. Accounting...

McAndrew, Thomas C; Bagrow, James P

2015-01-01T23:59:59.000Z

9

Photorefractive Spatial Solitons  

Science Journals Connector (OSTI)

In this chapter we discuss the basic phenomenology and theoretical framework associated with photorefractive spatial solitons. Our attention is mainly centered on explaining the fundamental processes that allo...

Eugenio DelRe; Bruno Crosignani; Paolo Di Porto

2001-01-01T23:59:59.000Z

10

Geologic spatial analysis  

SciTech Connect

This report describes the development of geologic spatial analysis research which focuses on conducting comprehensive three-dimensional analysis of regions using geologic data sets that can be referenced by latitude, longitude, and elevation/depth. (CBS)

Thiessen, R.L.; Eliason, J.R.

1989-01-01T23:59:59.000Z

11

Treatment of biomass to obtain ethanol  

DOE Patents (OSTI)

Ethanol was produced using biocatalysts that are able to ferment sugars derived from treated biomass. Sugars were obtained by pretreating biomass under conditions of high solids and low ammonia concentration, followed by saccharification.

Dunson, Jr., James B. (Newark, DE); Elander, Richard T. (Evergreen, CO); Tucker, III, Melvin P. (Lakewood, CO); Hennessey, Susan Marie (Avondale, PA)

2011-08-16T23:59:59.000Z

12

WHAT'S SPATIAL ABOUT SPATIAL DATA MINING: THREE CASE STUDIES  

E-Print Network (OSTI)

Chapter 1 WHAT'S SPATIAL ABOUT SPATIAL DATA MINING: THREE CASE STUDIES Shashi Shekhar, Yan Huang, Weili Wu, C.T. Lu, and S. Chawla Abstract Spatial data mining is the process of discovering interesting patterns from tra­ ditional numeric and categorical data due to the complexity of spatial data types

Shekhar, Shashi

13

Spatial Data Structures Hanan Samet  

E-Print Network (OSTI)

Spatial Data Structures Hanan Samet Computer Science Department and Institute of Advanced Computer An overview is presented of the use of spatial data structures in spatial databases. The focus to the space occupied by it. Such techniques are known as spatial indexing methods. Hierarchical data

Shahabi, Cyrus

14

HOW TO OBTAIN EIA PRODUCTS AND SERVICES  

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

HOW TO OBTAIN EIA PRODUCTS AND SERVICES HOW TO OBTAIN EIA PRODUCTS AND SERVICES For further information on any or the following services, or for answers to energy information questions, please contact ElA's National Energy Information Outer National Energy Infomtaiion Center (NEIC) (202) 586-8800 Energy Information Administration (202) 586-0727 (fax) l-orrtslal Ituilding, Roam 1F-048 TTY: (202) 586-1ISI Washington. DC 20585 E-mail: infocir@eia.doc.gov Electronic Products and Services ElA's Internet Site Services offer nearly all E1A publications. Users can view and download selected pages or entire reports, search Tor information, download LIA tlaia and analysis applications, and find out about new KIA information products aitd sen-ices, World Wide Web: http://www.eia.doe.KOV Gopher: go ph« r ://go ph er .eia .d oe. gov

15

Spatial Computation Mihai Budiu  

E-Print Network (OSTI)

software pipelining. A comparison of Spatial Computation and superscalar processors highlights some-level simulation however suggests that the energy efficiency of Application-Specific Hard- ware is three orders. The second part of this document evaluates the performance of the generated circuits using simulation. Using

Budiu, Mihai

16

Obtaining the best subset in regression analysis  

E-Print Network (OSTI)

and patience during this undertaking. 111 TABLE OF CONTENTS Chapte r Page I. INTRODUCTION Statement of the Problem. Review of the Literature Summary of Research 1 2 6 DEVELOPMENT OF THE SELECTION PROCEDURE Preliminary Remarks The Selection... = p'B - p' Bk (2 () If k & r, this method of determining a is inefficient since it re- quires the inversion of the k x k matrix C . In Lemma 2 below, an alternate expression for a is obtained which requires only the inver- sion of an r x r matrix...

Leslie, Robert Norton

2012-06-07T23:59:59.000Z

17

Regional Comparisons, Spatial Aggregation,  

Gasoline and Diesel Fuel Update (EIA)

Regional Regional Comparisons, Spatial Aggregation, and Asymmetry of Price Pass-Through in U.S. Gasoline Markets MICHAEL YE*, JOHN ZYREN**, JOANNE SHORE**, AND MICHAEL BURDETTE** Abstract Spot to retail price pass-through behavior of the U.S. gasoline market was investigated at the national and regional levels, using weekly wholesale and retail motor gasoline prices from January 2000 to the present. Asymmetric pass-through was found across all regions, with faster pass-through when prices are rising. Pass-through patterns, in terms of speed and time for completion, were found to vary from region to region. Spatial aggregation was investigated at the national level and the East Coast with the aggregated cumulative pass-through being greater than the volume-weighted regional pass-through when spot prices increase. These results are useful to the petroleum industry, consumers,

18

Particle detector spatial resolution  

DOE Patents (OSTI)

Method and apparatus for producing separated columns of scintillation layer material, for use in detection of X-rays and high energy charged particles with improved spatial resolution. A pattern of ridges or projections is formed on one surface of a substrate layer or in a thin polyimide layer, and the scintillation layer is grown at controlled temperature and growth rate on the ridge-containing material. The scintillation material preferentially forms cylinders or columns, separated by gaps conforming to the pattern of ridges, and these columns direct most of the light produced in the scintillation layer along individual columns for subsequent detection in a photodiode layer. The gaps may be filled with a light-absorbing material to further enhance the spatial resolution of the particle detector.

Perez-Mendez, Victor (Berkeley, CA)

1992-01-01T23:59:59.000Z

19

spatial analysis | OpenEI Community  

Open Energy Info (EERE)

spatial analysis Home Geospatial Description: Discuss and explore geospatial data available on OpenEI. geospatial GIS spatial analysis...

20

Quantum spatial superresolution by optical centroid measurements  

E-Print Network (OSTI)

Quantum lithography (QL) has been suggested as a means of achieving enhanced spatial resolution for optical imaging, but its realization has been held back by the low multi-photon detection rates of recording materials. Recently, an optical centroid measurement (OCM) procedure was proposed as a way to obtain spatial resolution enhancement identical to that of QL but with higher detection efficiency (M. Tsang, Phys. Rev. Lett. 102, 253601, 2009). Here we describe a variation of the OCM method with still higher detection efficiency based on the use of photon-number-resolving detection. We also report laboratory results for two-photon interference. We compare these results with those of the standard QL method based on multi-photon detection and show that the new method leads to superresolution but with higher detection efficiency.

Heedeuk Shin; Kam Wai Clifford Chan; Hye Jeong Chang; Robert W. Boyd

2011-05-11T23:59:59.000Z

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


21

Spatial Computers for Emergency Support  

Science Journals Connector (OSTI)

......devices to share data. A grid-based structure is used...The size of the spatial grid used is 1000 1000 points...storage size, spatial grid configuration and update...hazard is considered, the benefit of communication is even...evacuation simulator for smart emergency management......

Avgoustinos Filippoupolitis; Gokce Gorbil; Erol Gelenbe

2013-12-01T23:59:59.000Z

22

Spatial Entropy-Based Clustering for Mining Data with Spatial Correlation  

E-Print Network (OSTI)

Spatial Entropy-Based Clustering for Mining Data with Spatial Correlation Baijie Wang and Xin Wang research area in the field of spatial data mining, which groups objects into meaningful subclasses based on their spatial and non- spatial attributes [1], [2]. In spatial data, spatial attributes, such as coordinates

23

Spatial Data Types: Conceptual Foundation for  

E-Print Network (OSTI)

Spatial Data Types: Conceptual Foundation for the Design and Implementation of Spatial Database markus.schneider@fernuni-hagen.de #12;Markus Schneider, Tutorial "Spatial Data Types" 2 Abstract Spatial are usually called spatial data types, such as point, line, and region but also include more complex types

Güting, Ralf Hartmut

24

Disordered environments in spatial games  

Science Journals Connector (OSTI)

The Prisoners dilemma is the main game theoretical framework in which the onset and maintainance of cooperation in biological populations is studied. In the spatial version of the model, we study the robustness of cooperation in heterogeneous ecosystems in spatial evolutionary games by considering site diluted lattices. The main result is that, due to disorder, the fraction of cooperators in the population is enhanced. Moreover, the system presents a dynamical transition at ?*, separating a region with spatial chaos from one with localized, stable groups of cooperators.

Mendeli H. Vainstein and Jeferson J. Arenzon

2001-10-22T23:59:59.000Z

25

Policy Flash 2013-24 Fee Determinations: Requirement to Obtain...  

Office of Environmental Management (EM)

Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's Input Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's...

26

Arene Trifluoromethylation: An Effective Strategy to Obtain Air...  

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

Effective Strategy to Obtain Air-Stable nType Organic Semiconductors with Tunable Optoelectronic Arene Trifluoromethylation: An Effective Strategy to Obtain Air-Stable nType...

27

Step 5b: Help Program Contractors Obtain the Necessary Equipment...  

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

b: Help Program Contractors Obtain the Necessary Equipment Step 5b: Help Program Contractors Obtain the Necessary Equipment In addition to equipment for installing energy...

28

Exploring neighborhood and spatial information for improving scene classification  

Science Journals Connector (OSTI)

A good image descriptor is essential for the scene classification task. This work proposes an improvement for the Contextual Mean Census Transform (CMCT), an image descriptor, obtained by adding information from distant neighbors to the non-parametric ... Keywords: Contextual information, Image descriptor, Non-parametric transform, Scene classification, Spatial arrangement information

Kelly Assis De Souza Gazolli, Evandro Ottoni Teatini Salles

2014-09-01T23:59:59.000Z

29

Measured spatial properties of the cw Nd:YAG beam  

SciTech Connect

The spatial properties of an 80-W Nd:YAG laser beam have been measured. A simple expression is obtained which can be used to describe the power density of the beam as a function of peak power density and halfwidth at half-maximum.

Scholl, M.S.

1980-11-01T23:59:59.000Z

30

Hierarchical clustering using correlation metric and spatial continuity constraint  

DOE Patents (OSTI)

Large data sets are analyzed by hierarchical clustering using correlation as a similarity measure. This provides results that are superior to those obtained using a Euclidean distance similarity measure. A spatial continuity constraint may be applied in hierarchical clustering analysis of images.

Stork, Christopher L.; Brewer, Luke N.

2012-10-02T23:59:59.000Z

31

Uncertainty Management for Spatial Data in Databases: Fuzzy Spatial Data Types  

E-Print Network (OSTI)

Uncertainty Management for Spatial Data in Databases: Fuzzy Spatial Data Types Markus Schneider an abstract, conceptual model of so­called fuzzy spatial data types (i.e., a fuzzy spatial algebra types called spatial data types (see [Sch97] for a survey) have been designed for modeling these spatial

Güting, Ralf Hartmut

32

Timpf, S. and A. U. Frank (1997). Using hierarchical spatial data structures for hierarchical spatial reasoning. Spatial Information  

E-Print Network (OSTI)

Timpf, S. and A. U. Frank (1997). Using hierarchical spatial data structures for hierarchical Science 1329: 69-83. Using Hierarchical Spatial Data Structures for Hierarchical Spatial Reasoning Sabine structures to improve efficiency in computing the correct result. An algorithm on hierarchical spatial data

Timpf, Sabine

33

Spatial solitons in two-photon photorefractive media  

SciTech Connect

We provide a theory for spatial solitons due to the two-photon photorefractive effect based on the Castro-Camus model [Opt. Lett. 28, 1129 (2003)]. We present the evolution equation of one-dimensional spatial solitons in two-photon photorefractive media. In steady state and under appropriate external bias conditions, we obtain the dark and bright soliton solutions of the optical wave evolution equation, and also discuss the self-deflection of the bright solitons theoretically by taking into account the diffusion effect.

Hou Chunfeng; Pei Yanbo; Zhou Zhongxiang; Sun Xiudong [Department of Physics, Harbin Institute of Technology, Harbin 150001 (China)

2005-05-15T23:59:59.000Z

34

Silane Modification of Glass and Silica Surfaces to Obtain Equally...  

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

Silane Modification of Glass and Silica Surfaces to Obtain Equally Oil-Wet Surfaces in Glass-Covered Silicon Micromodel Silane Modification of Glass and Silica Surfaces to Obtain...

35

Trends in Spatial Data Shashi Shekhar  

E-Print Network (OSTI)

Chapter 3 Trends in Spatial Data Mining Shashi Shekhar , Pusheng Zhang , Yan Huang , Ranga Raju, Minneapolis, MN 55455 Abstract: Spatial data mining is the process of discovering interesting and previously traditional numeric and categorical data due to the complexity of spatial data types, spatial relationships

Huang, Yan

36

Experimental results obtained with the positron-annihilation-radiation telescope of the Toulouse-Argonne collaboration  

Science Journals Connector (OSTI)

We present laboratory measurements obtained with a ground-based prototype of the focusing positron-annihilation-radiation telescope developed by the Toulouse-Argonne collaboration. This instrument has been designed to collect 511-keV photons from astrophysical sources when operating as a balloon borne observatory. The ground-based prototype consists of a crystal lens holding small cubes of diffracting germanium crystals and a 33 germanium array that detects the concentrated beam in the focal plane. Measured performances of the instrument at different line energies (511 and 662 keV) are presented and compared with Monte Carlo simulations; also the advantages of combining the lens with a detector array are discussed. The results obtained in the laboratory have strengthened interest in a crystal-diffraction telescope: the balloon instrument will provide a combination of high spatial and energy resolution (15 arc sec and 2 keV, respectively) with an extremely low instrumental background resulting in a sensitivity of ?3 10?5 photons cm?2s?1. These features will allow us to resolve a possible narrow 511-keV line both energetically and spatially within a Galactic center microquasar or in other broad-class annihilators.

J.E. Naya; P. von Ballmoos; R.K. Smither; M. Faiz; P.B. Fernandez; T. Graber; F. Albernhe; G. Vedrenne

1996-01-01T23:59:59.000Z

37

Spatial Hierarchy and OLAP-Favored Search in Spatial Data Warehouse  

E-Print Network (OSTI)

Spatial Hierarchy and OLAP-Favored Search in Spatial Data Warehouse Fangyan Rao, Long Zhang, Xiu systems. With the increasing amount of spatial data stored in business database, how to utilize these spatial information to get insight into business data from the geo- spatial point of view is becoming

Song, Il-Yeol

38

Modeling longitudinal spatial periodontal data: A spatially-adaptive model with tools for specifying  

E-Print Network (OSTI)

Modeling longitudinal spatial periodontal data: A spatially-adaptive model with tools spatial periodontal data: A spatially-adaptive model with tools for specifying priors and checking fit with spatially-varying baseline smoothing parameters, and the rectangles along the horizontal axes represent

Reich, Brian J.

39

Integrated storage and querying of spatially varying data quality information in a relational spatial database  

E-Print Network (OSTI)

Integrated storage and querying of spatially varying data quality information in a relational Variation in Quality Keywords Spatial data quality; spatial database; relational database management system for storing and retrieving spatially varying data quality information in a relational spatial database. Rather

Duckham, Matt

40

Spatial Computers for Emergency Support  

Science Journals Connector (OSTI)

......the area, whereas OESS is a hybrid systemconsistingofmobile...mentioned above due to its static infrastructure, while OESS is considerably...such devices to share data. A grid-based structure is used to...framework. The size of the spatial grid used is 1000 1000 points......

Avgoustinos Filippoupolitis; Gokce Gorbil; Erol Gelenbe

2013-12-01T23:59:59.000Z

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


41

Wind Energy and Spatial Technology  

E-Print Network (OSTI)

2/3/2011 1 Wind Energy and Spatial Technology Lori Pelech Why Wind Energy? A clean, renewable 2,600 tons of carbon emissions annually ­ The economy · Approximately 85,000 wind energy workers (existing transmission lines)? #12;2/3/2011 3 US Energy Transmission Grid US Wind Map #12;2/3/2011 4

Schweik, Charles M.

42

Methods for evaluating spatial fields  

E-Print Network (OSTI)

other areas Other parameters (e.g., wind, cloud) Regional climate forecasts Satellite precipitation structure and features WRF model Stage II radar STAR Seminar Oct 2010 #12;5 Spatial fields have many flavors on the local circulation patterns." STAR Seminar Oct 2010 #12;Rife et al. 2004 STAR Seminar Oct 2010 #12

Kuligowski, Bob

43

Lab obtains approval to begin design on new radioactive waste...  

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

New radioactive waste staging facility Lab obtains approval to begin design on new radioactive waste staging facility The 4-acre complex will include multiple staging buildings...

44

A new constraint-based spatial clustering algorithm based on spatial adjacent relation for GML data  

Science Journals Connector (OSTI)

Spatial data mining (SDM) is the discovery of interesting relationships and characteristics that may exist implicitly in spatial databases. Many methods on spatial clustering have been proposed, but only few of them considered the constraints like road, ...

V. Pattabiraman; R. Nedunchezhian

2012-01-01T23:59:59.000Z

45

OBTAINING LAWS OF THERMODYNAMICS FOR IDEAL GASES USING ELASTIC COLLISIONS  

E-Print Network (OSTI)

OBTAINING LAWS OF THERMODYNAMICS FOR IDEAL GASES USING ELASTIC COLLISIONS STEPHEN MONTGOMERY law of expansion of ideal gases. 1. The Second Law of Thermodynamics A thermally isolated container-SMITH AND HANNAH MORGAN Abstract. The purpose of this note is to see to what extent ideal gas laws can be obtained

Montgomery-Smith, Stephen

46

Simultaneous sample and spatial coherence characterisation using diffractive imaging  

SciTech Connect

We demonstrate an algorithm that reconstructs the complex transmission function of an object from experimental X-ray diffraction data using partially coherent 1.4 keV X-rays that does not require a priori input of the coherence function. The quality of the reconstruction is significantly better than that obtained by assuming that the illumination is fully coherent. Our approach can be readily applied to diffraction imaging problems where a model for the spatial coherence can be assumed.

Clark, Jesse N.; Peele, Andrew G. (La Trobe)

2012-01-20T23:59:59.000Z

47

Simultaneous sample and spatial coherence characterisation using diffractive imaging  

SciTech Connect

We demonstrate an algorithm that reconstructs the complex transmission function of an object from experimental X-ray diffraction data using partially coherent 1.4 keV X-rays that does not require a priori input of the coherence function. The quality of the reconstruction is significantly better than that obtained by assuming that the illumination is fully coherent. Our approach can be readily applied to diffraction imaging problems where a model for the spatial coherence can be assumed.

Clark, Jesse N. [Department of Physics, La Trobe University, Victoria 3086 (Australia); Australian Research Council Centre of Excellence for Coherent X-Ray Science, Melbourne (Australia); Peele, Andrew G. [Department of Physics, La Trobe University, Victoria 3086 (Australia); Australian Research Council Centre of Excellence for Coherent X-Ray Science, Melbourne (Australia); Australian Synchrotron, Clayton 3168 (Australia)

2011-10-10T23:59:59.000Z

48

Spatial Frequency Filtering Using Nondelineated Thin Films  

Science Journals Connector (OSTI)

We present a new approach for achieving spatial frequency filtering in the analog domain. Our device, the Thin Film Spatial Filter, is a hybrid structure which combines the strengths of analog VLSI technology with the simplicity of a continuous sheet ...

J. Mcelvain; J. Langan; A. J. Heeger

1997-10-01T23:59:59.000Z

49

Simulation of Spatial P system models  

Science Journals Connector (OSTI)

Spatial P systems are an extension of the P systems formalism in which objects and membranes are embedded into a two-dimensional discrete space. Spatial P systems are characterised by the distinction between ordinary objects and mutually exclusive objects, ... Keywords: Membrane computing, Simulation algorithms, Spatiality

Roberto Barbuti, Andrea Maggiolo-Schettini, Paolo Milazzo, Giovanni Pardini

2014-04-01T23:59:59.000Z

50

Objective Bayesian Analysis of Spatially Correlated Data  

E-Print Network (OSTI)

Objective Bayesian Analysis of Spatially Correlated Data James O. Berger a , Victor De Oliveira b the reference prior is improper. An illustration is given using a spatial data set of topographic elevations #12;elds are powerful probabilistic tools for modeling spatial data and making inference about

West, Mike

51

SPATIAL DATA MINING IMPLEMENTATION Alternatives and perfermances  

E-Print Network (OSTI)

SPATIAL DATA MINING IMPLEMENTATION Alternatives and perfermances NADJIM CHELGHOUM, KARINE ZEITOUNI Abstract: Spatial data mining requires the analysis of the interactions in space. These interactions can be materialized using distance tables, reducing spatial data mining to multi-table analysis. However, conventional

Zeitouni, Karine

52

Chapter 13 Geovisualization 179 Spatial Data Analysis  

E-Print Network (OSTI)

Chapter 13 Geovisualization 179 Spatial Data Analysis OVERVIEW This chapter is the first in a set data analysis and tests to determine whether a method is spatial. Techniques for detecting geographic, because they can be applied to data arrayed in any space, not only geographic space. Spatial

Wright, Dawn Jeannine

53

Spatial Data Authentication Using Mathematical Visualization  

E-Print Network (OSTI)

Spatial Data Authentication Using Mathematical Visualization Vert, G., Harris, F., Nasser, S. Dept has become an increasingly compromised method to transmit any type of data including spatial data. Due to the criticality of spatial data in decision making processes that range from military targeting to urban planning

Harris Jr., Frederick C.

54

An important challenge in magnetic fusion research is to obtain...  

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

Ways to reduce your tokamak heating bill: Gaining control of edge transport barriers on Alcator C-Mod A crucial challenge in magnetic fusion is to obtain high energy confinement in...

55

Treatment of biomass to obtain a target chemical  

DOE Patents (OSTI)

Target chemicals were produced using biocatalysts that are able to ferment sugars derived from treated biomass. Sugars were obtained by pretreating biomass under conditions of high solids and low ammonia concentration, followed by saccharification.

Dunson, Jr., James B. (Newark, DE); Tucker, III, Melvin P. (Lakewood, CO); Elander, Richard T. (Evergreen, CO); Hennessey, Susan Marie (Avondale, PA)

2010-08-24T23:59:59.000Z

56

Vibration Testing of Bridge Stay Cables to Obtain Damping Values  

Science Journals Connector (OSTI)

This paper discusses a series of tests performed on a cable stayed bridge in British Columbia, Canada to obtain the cable damping properties. Free vibration tests were performed on selected cables, in two phases:...

Martin E. Turek; Carlos E. Ventura; Khaled Shawwaf

2011-01-01T23:59:59.000Z

57

Tracking of Transgene Expression in Soybean using Robotics and GFP John James Finer  

E-Print Network (OSTI)

of Horticulture and Crop Science, OARDC The Ohio State University, 1680 Madison Ave, Wooster, OH 44691, USA Tel illumination of the subject material with the proper wavelength of light and use of GFP-specific filters but

Finer, John J.

58

Spatial Data Mining, Michael May, Fraunhofer AIS 1 Spatial Data Mining for Customer  

E-Print Network (OSTI)

Spatial Data Mining, Michael May, Fraunhofer AIS 1 Spatial Data Mining for Customer Segmentation Intelligente Systeme #12;Spatial Data Mining, Michael May, Fraunhofer AIS 2 Introduction: a classic example? A good representation is the key to solving a problem Disease cluster #12;Spatial Data Mining, Michael

Morik, Katharina

59

Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment |  

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

Obtains Patent for Nuclear Reactor Sodium Cleanup Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment March 28, 2013 - 12:00pm Addthis CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. Piping in the east boiler basement of the sodium processing building was color coded for easy identification. Orange indicates sodium and green identifies cooling water.

60

Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment |  

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

Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment March 28, 2013 - 12:00pm Addthis CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. Piping in the east boiler basement of the sodium processing building was color coded for easy identification. Orange indicates sodium and green identifies cooling water.

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


61

Obtaining the Bidirectional Transfer Distribution Function of Isotropically  

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

Obtaining the Bidirectional Transfer Distribution Function of Isotropically Obtaining the Bidirectional Transfer Distribution Function of Isotropically Scattering Materials Using an Integrating Sphere Title Obtaining the Bidirectional Transfer Distribution Function of Isotropically Scattering Materials Using an Integrating Sphere Publication Type Journal Article LBNL Report Number LBNL-61826 Year of Publication 2007 Authors Jonsson, Jacob C., and Henrik Branden Journal Optics Communications Volume 277 Pagination 228-236 Call Number LBNL-61826 Abstract This paper demonstrates a method to determine the bidirectional transfer distribution function (BTDF) using an integrating sphere. Information about the sample's angle dependent scattering is obtained by making transmittance measurements with the sample at different distances from the integrating sphere. Knowledge about the illuminated area of the sample and the geometry of the sphere port in combination with the measured data combines to an system of equations that includes the angle dependent transmittance. The resulting system of equations is an ill-posed problem which rarely gives a physical solution. A solvable system is obtained by using Tikhonov regularization on the ill-posed problem. The solution to this system can then be used to obtain the BTDF. Four bulk-scattering samples were characterised using both two goniophotometers and the described method to verify the validity of the new method. The agreement shown is great for the more diffuse samples. The solution to the low-scattering samples contains unphysical oscillations, but still gives the correct shape of the solution. The origin of the oscillations and why they are more prominent in low-scattering samples are discussed.

62

OBTAINING EMPLOYMENT AT THE UNIVERSITY OF HAWAI`I  

E-Print Network (OSTI)

OBTAINING EMPLOYMENT AT THE UNIVERSITY OF HAWAI`I Employees at the University of Hawai`i fall into one of four distinct categories of employment ­ civil service, faculty, administrative of Campus Security Policy and Campus Crime Statistics Act, annual campus crime statistics for the University

Olsen, Stephen L.

63

Brain Mapping Using Topology Graphs Obtained by Surface Segmentation  

E-Print Network (OSTI)

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

Linsen, Lars

64

Environmental and Pollution Spatial Data Classification with Support Vector Machines  

E-Print Network (OSTI)

Environmental and Pollution Spatial Data Classification with Support Vector Machines and pollution spatial data analysis and modeling. The main attention is paid to classification of spatially. Introduction Environmental and pollution data are usually spatially distributed and time dependent. At present

Gilardi, Nicolas

65

Improving methods for reporting spatial epidemiologic data  

E-Print Network (OSTI)

LETTERS Improving Methods for Reporting Spatial Epidemiologic Data To the Editor: A recent perspec- tive in this journal (1) pointed out problems with the present, county- referenced system for reporting spatial epidemiologic data. Problems... identi- fi ed included coarse spatial resolution of county-referenced data and differ- ences across the United States in size of counties, making data for the west- ern part of the country coarser in reso- lution than data for the eastern part. Eisen...

Peterson, A. Townsend

2008-08-01T23:59:59.000Z

66

Nonparametric methods of assessing spatial isotropy  

E-Print Network (OSTI)

processes and spatial point processes. 1.1 Quantitative Spatial Processes Quantitative spatial statistics is often originally associated with geostatistics, where Math- eron (1963) developed tools to predict ore reserves in a region. Geostatistics emerged... in the early 1980s and has seen rapid growth over the past twenty years. Successful appli- cations abound beyond geostatistics in, for example, rainfall data (Ord and Rees 1979), groundwater research (Myers et al. 1982), ozone exposure study (Carroll et al...

Guan, Yong Tao

2004-11-15T23:59:59.000Z

67

1 Overview of spatial data problems 1 1.1 Introduction to spatial data and models 1  

E-Print Network (OSTI)

Contents Preface xv 1 Overview of spatial data problems 1 1.1 Introduction to spatial data for areal data 70 3.1.1 Measures of spatial association 71 3.1.2 Spatial smoothers 75 3.2 Brook's Lemma 125 5 Hierarchical modeling for univariate spatial data 129 5.1 Stationary spatial process models 129

Carlin, Bradley P.

68

Spatial Sampling for Image Segmentation  

E-Print Network (OSTI)

AND ALONSO RAMIREZ­MANZANARES3 1 Centro de Investigacion en Matematicas A.C, Guanajuato GTO 36000, Mexico 2 Matematicas, Guanajuato GTO 36000, Mexico Email: mrivera@cimat.mx We present a novel framework for image­ processing in order to obtain a desired solution. On the other hand, the image segmentation is commonly

Rivera, Mariano

69

Posters Comparisons of Brightness Temperature Measurements and Calculations Obtained  

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

Posters Comparisons of Brightness Temperature Measurements and Calculations Obtained During the Spectral Radiance Experiment Y. Han, J. B. Snider, and E. R. Westwater National Oceanic and Atmospheric Administration Environmental Research Laboratories/Environmental Technology Laboratory Boulder, Colorado S. H. Melfi National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland R. A. Ferrare Hughes STX Corporation Lanham, Maryland Introduction In radiometric remote sensing of the atmosphere, the ability to calculate radiances from underlying state variables is fundamental. To infer temperature and water vapor profiles from satellite- or ground-based radiometers, one must determine cloud-free regions and then calculate clear-sky radiance emerging from the top of the earth's

70

Spin and orbital magnetization loops obtained using magnetic Compton scattering  

SciTech Connect

We present an application of magnetic Compton scattering (MCS) to decompose a total magnetization loop into spin and orbital magnetization contributions. A spin magnetization loop of SmAl{sub 2} was measured by recording the intensity of magnetic Compton scattering as a function of applied magnetic field. Comparing the spin magnetization loop with the total magnetization one measured by a vibrating sample magnetometer, the orbital magnetization loop was obtained. The data display an anti-coupled behavior between the spin and orbital magnetizations and confirm that the orbital part dominates the magnetization.

Itou, M.; Sakurai, Y. [Japan Synchrotron Radiation Research Institute, SPring-8, Hyogo 679-5198 (Japan)] [Japan Synchrotron Radiation Research Institute, SPring-8, Hyogo 679-5198 (Japan); Koizumi, A. [Graduate School of Materials Science, University of Hyogo, Hyogo 678-1297 (Japan)] [Graduate School of Materials Science, University of Hyogo, Hyogo 678-1297 (Japan)

2013-02-25T23:59:59.000Z

71

How to obtain the National Energy Modeling System (NEMS)  

Reports and Publications (EIA)

The National Energy Modeling System (NEMS) NEMS is used by the modelers at the U. S. Energy Information Administration (EIA) who understand its structure and programming. NEMS has only been used by a few organizations outside of the EIA, because most people that requested NEMS found out that it was too difficult or rigid to use. NEMS is not typically used for state-level analysis and is poorly suited for application to other countries. However, many do obtain the model simply to use the data in its input files or to examine the source code.

2013-01-01T23:59:59.000Z

72

Social Influences on Rat Spatial Choice Social Influences on Rat Spatial Choice  

E-Print Network (OSTI)

of spatial working memory paradigms using pairs of laboratory rats foraging together for food depleted of food by the other rat. The latter effect is based on working memory for the choices madeSocial Influences on Rat Spatial Choice Social Influences on Rat Spatial Choice Michael F. Brown

Cook, Robert

73

DRAFT Chapter 3 Spatial Query Languages  

E-Print Network (OSTI)

in the previous chapter, the relational model has limitations in e#11;ectively handling spatial data. Spatial data with object functionality. This e#11;ort has materialized into a new OR-DBMS standard for SQL: SQL3. Since we. The pictogram- enhanced ER diagram of the database and the example tables are shown in Figure 3.1 and Table 3

Shekhar, Shashi

74

Spatial resolution in vector potential photoelectron microscopy  

SciTech Connect

The experimental spatial resolution of vector potential photoelectron microscopy is found to be much higher than expected because of the cancellation of one of the expected contributions to the point spread function. We present a new calculation of the spatial resolution with support from finite element ray tracing, and experimental results.

Browning, R. [R. Browning Consultants, 1 Barnhart Place, Shoreham, New York 11786 (United States)] [R. Browning Consultants, 1 Barnhart Place, Shoreham, New York 11786 (United States)

2014-03-15T23:59:59.000Z

75

Crown Copyright 2014 Spatial biophysical data  

E-Print Network (OSTI)

© Crown Copyright 2014 Soils data IACS Baseline &UKCP09 WEAG area Spatial biophysical data Land ecosystem service (ES) benefits ?consider the complex spatial and temporal impacts of land-use change cover, soils, and climate data. Species suitability and potential yield are modelled using Ecological

76

Spatial memory, recognition memory, and the hippocampus  

E-Print Network (OSTI)

Spatial memory, recognition memory, and the hippocampus Nicola J. Broadbent*, Larry R. Squire. Squire, August 27, 2004 There is wide agreement that spatial memory is dependent on the integrity recognition memory is not as clear. We examined the relationship between hippocampal lesion size and both

Squire, Larry R.

77

A Statistical Framework for Spatial Comparative Genomics  

E-Print Network (OSTI)

A Statistical Framework for Spatial Comparative Genomics Rose Hoberman May 2007 CMU-CS-07, or the U.S. Government. #12;Keywords: spatial comparative genomics, comparative genomics, gene clusters, max-gap clusters, gene teams, whole genome duplication, paralogons, synteny, ortholog detection #12

78

Nonlocal Kardar-Parisi-Zhang equation with spatially correlated noise  

Science Journals Connector (OSTI)

The effects of spatially correlated noise on a phenomenological equation equivalent to a nonlocal version of the Kardar-Parisi-Zhang (KPZ) equation are studied via the dynamic renormalization group (DRG) techniques. The correlated noise coupled with the long ranged nature of interactions prove the existence of different phases in different regimes, giving rise to a range of roughness exponents defined by their corresponding critical dimensions. Finally self-consistent mode analysis is employed to compare the non-KPZ exponents obtained as a result of the long-range interactions with the DRG results.

Amit Kr. Chattopadhyay

1999-07-01T23:59:59.000Z

79

Asymptotic properties of the development of conformally flat data near spatial infinity  

E-Print Network (OSTI)

Certain aspects of the behaviour of the gravitational field near null and spatial infinity for the developments of asymptotically Euclidean, conformally flat initial data sets are analysed. Ideas and results from two different approaches are combined: on the one hand the null infinity formalism related to the asymptotic characteristic initial value problem and on the other the regular Cauchy initial value problem at spatial infinity which uses Friedrich's representation of spatial infinity as a cylinder. The decay of the Weyl tensor for the developments of the class of initial data under consideration is analysed under some existence and regularity assumptions for the asymptotic expansions obtained using the cylinder at spatial infinity. Conditions on the initial data to obtain developments satisfying the Peeling Behaviour are identified. Further, the decay of the asymptotic shear on null infinity is also examined as one approaches spatial infinity. This decay is related to the possibility of selecting the Poincar\\'e group out of the BMS group in a canonical fashion. It is found that for the class of initial data under consideration, if the development peels, then the asymptotic shear goes to zero at spatial infinity. Expansions of the Bondi mass are also examined. Finally, the Newman-Penrose constants of the spacetime are written in terms of initial data quantities and it is shown that the constants defined at future null infinity are equal to those at past null infinity.

J. A. Valiente Kroon

2007-01-30T23:59:59.000Z

80

Spatial effects on species persistence and implications for biodiversity  

E-Print Network (OSTI)

Natural ecosystems are characterized by striking diversity of form and functions and yet exhibit deep symmetries emerging across scales of space, time and organizational complexity. Species-area relationships and species-abundance distributions are examples of emerging patterns irrespective of the details of the underlying ecosystem functions. Here we present empirical and theoretical evidence for a new macroecological pattern related to the distributions of local species persistence times, defined as the timespans between local colonizations and extinctions in a given geographic region. Empirical distributions pertaining to two different taxa, breeding birds and herbaceous plants, analyzed in a new framework that accounts for the finiteness of the observational period, exhibit power-law scaling limited by a cut-off determined by the rate of emergence of new species. In spite of the differences between taxa and spatial scales of analysis, the scaling exponents are statistically indistinguishable from each other and significantly different from those predicted by existing models. We theoretically investigate how the scaling features depend on the structure of the spatial interaction network and show that the empirical scaling exponents are reproduced once a two-dimensional isotropic texture is used, regardless of the details of the ecological interactions. The framework developed here also allows to link the cut-off timescale with the spatial scale of analysis, and the persistence-time distribution to the species-area relationship. We conclude that the inherent coherence obtained between spatial and temporal macroecological patterns points at a seemingly general feature of the dynamical evolution of ecosystems.

Enrico Bertuzzo; Samir Suweis; Lorenzo Mari; Amos Maritan; Ignacio Rodriguez-Iturbe; Andrea Rinaldo

2011-09-07T23:59:59.000Z

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


81

Characteristic Spatial Scales in Earthquake Data  

E-Print Network (OSTI)

We present a new technique in order to quantify the dynamics of spatially extended systems. Using a test on the existence of unstable periodic orbits, we identify intermediate spatial scales, wherein the dynamics is characterized by maximum nontrivial determinism. This method is applied to earthquake catalogues containing time, coordinates and magnitude. As a result we extract a set of areas with significant deterministic and low-dimensional dynamics from the data. Finally, a simple model is used to show that these scales can be interpreted as local spatial coupling strengths.

G. Zoeller; R. Engbert; S. Hainzl; J. Kurths

1997-01-30T23:59:59.000Z

82

Obtaining slow beam spills at the SSC collider  

SciTech Connect

There is substantial interest in providing slow-spill external proton beams in parallel with ``interaction running`` at the 20 TeV SSC collider. The proposal is to cause a flux of particles to impinge on a target consisting of a bent crystal extraction channel. Additionally, a slow spill onto a conventional internal target could be used as a source of secondary beams for physics or test purposes and might also be used for B-physics as proposed for HERA. The ``natural`` beam loss rates from elastic and diffractive beam gas scattering and IP collisions are not sufficient to provide suitably intense external proton beams. To prevent loss of luminosity, the rf excitation is non-linear and preferentially blows up the halo of the beam. The ``target`` is to be located at a region of high dispersion forcing particles at the edge of the momentum space onto the target. T. Lohse in this workshop has described a proposed internal target to be used at HERA that will not employ rf excitation but will use the finite loss rates observed at the HERA machine. The Hera losses are caused by a variety of sources in addition to beam gas scattering or IP interactions. Initially, the beam lifetime at HERA was too short to obtain satisfactory integrated luminosities. Subsequently, through careful attention to detail, the beam lifetime was increased to > 20 hours. Even with these changes, present loss rates provide the required intensity onto an internal target. The Tevatron and SPS proton anti-proton colliders have had similar experiences with their investigations of loss rates and also find that beam lifetimes may be substantially shorter than expected solely from beam gas and IP interactions. This paper proposes deliberately introducing controlled errors li

Ritson, D.

1993-08-01T23:59:59.000Z

83

Consideration of spatial effects in reactivity measurements  

SciTech Connect

Various methods of considering spatial effects in reactivity measurements are presented. These methods are employed both at the critical (mainly fast-neutron) facilities and at the BN-600 reactor.

Matveenko, I. P., E-mail: matveenko@ippe.ru; Lititskii, V. A.; Shokod'ko, A. G. [Institute of Physics and Power Engineering (Russian Federation)

2010-12-15T23:59:59.000Z

84

Spatial Error Metrics for Oceanographic Model Verification  

Science Journals Connector (OSTI)

A common problem with modern numerical oceanographic models is spatial displacement, including misplacement and misshapenness of ocean circulation features. Traditional error metrics, such as least squares methods, are ineffective in many such ...

Sean B. Ziegeler; James D. Dykes; Jay F. Shriver

2012-02-01T23:59:59.000Z

85

Identifying chromatin interactions at high spatial resolution  

E-Print Network (OSTI)

This thesis presents two computational approaches for identifying chromatin interactions at high spatial resolution from ChIA-PET data. We introduce SPROUT which is a hierarchical probabilistic model that discovers high ...

Reeder, Christopher Campbell

2014-01-01T23:59:59.000Z

86

Modeling and Analysis of Spatially Correlated Data  

E-Print Network (OSTI)

into a person's lungs) in air- pollution monitoring sites and characterize its spatial distributions. The shared in the amount of precipitation over adjacent tropical forests. Mining engineers are keen to predict the conserve

Li, Yi

87

Property:SpatialResolution | Open Energy Information  

Open Energy Info (EERE)

Property Edit History Facebook icon Twitter icon Property:SpatialResolution Jump to: navigation, search This is a property of type String. Retrieved from "http:en.openei.org...

88

Spatial Convergence of Bidirectional Reflectance Models  

Science Journals Connector (OSTI)

Analyses of bidirectional reflectance data are presented with implications regarding the spatial scales appropriate for inferring irradiances from radiances reflected by various surfaceatmosphere scenes. Multiple-angle radiance data collected in ...

John M. Davis; Stephen K. Cox

1998-10-01T23:59:59.000Z

89

Adaptive spatial hypermedia in computational journalism  

Science Journals Connector (OSTI)

Computational journalism allows journalists to collect large collections of information chunks from separate sources. The analysis of these collections can reveal hidden relationships between of relationships, but due to their size, diversity, ... Keywords: computatonal journalism, spatial hypermedia

Luis Francisco-Revilla; Alvaro Figueira

2012-06-01T23:59:59.000Z

90

Spatial solitary-wave optical memory  

Science Journals Connector (OSTI)

We consider some features of spatial solitary-wave switching in a unidirectional ring cavity that is partially filled with a fast and saturably self-focusing nonlinear medium. Large...

McDonald, G S; Firth, W J

1990-01-01T23:59:59.000Z

91

Effect of gis learning on spatial ability  

E-Print Network (OSTI)

#0;?#0;? Data management (topology) #0;?#0;? Geocoding (Georeferencing) #0;?#0;? Classifying spatial data (e.g., dot map, choropleth map) #0;?#0;? Searching for patterns (e.g., distribution, network, hierarchy) #0;?#0;? Analyzing...

Lee, Jong Won

2006-08-16T23:59:59.000Z

92

Organizing the Aggregate: Languages for Spatial Computing  

E-Print Network (OSTI)

As the number of computing devices embedded into engineered systems continues to rise, there is a widening gap between the needs of the user to control aggregates of devices and the complex technology of individual devices. Spatial computing attempts to bridge this gap for systems with local communication by exploiting the connection between physical locality and device connectivity. A large number of spatial computing domain specific languages (DSLs) have emerged across diverse domains, from biology and reconfigurable computing, to sensor networks and agent-based systems. In this paper, we develop a framework for analyzing and comparing spatial computing DSLs, survey the current state of the art, and provide a roadmap for future spatial computing DSL investigation.

Beal, Jacob; Usbeck, Kyle; Viroli, Mirko; Correll, Nikolaus

2012-01-01T23:59:59.000Z

93

Spatial correlation structure estimation using geophysical and hydrogeological data  

E-Print Network (OSTI)

Spatial correlation structure estimation using geophysical and hydrogeological data Susan S investigate the use of tomographic geophysical data in combination with hydrogeological data in the spatial of data having different support scales and spatial sampling windows was facilitated. Comparison

Hubbard, Susan

94

Correspondence Clustering: An Approach to Cluster Multiple Related Spatial Datasets  

E-Print Network (OSTI)

Correspondence Clustering: An Approach to Cluster Multiple Related Spatial Datasets Vadeerat spatial datasets. This capability is important for change analysis and contrast mining. In this paper spatial datasets by maximizing cluster interestingness and correspondence between clusters derived from

Eick, Christoph F.

95

Analysing earthquake slip models with the spatial prediction comparison test  

Science Journals Connector (OSTI)

......slip models with the spatial prediction comparison test Ling Zhang 1 P. Martin Mai 1 Kiran K.S. Thingbaijam...performance of the spatial prediction comparison test (SPCT), a statistical test developed to compare spatial (random) fields by......

Ling Zhang; P. Martin Mai; Kiran K.S. Thingbaijam; Hoby N.T. Razafindrakoto; Marc G. Genton

2015-01-01T23:59:59.000Z

96

3D-Printing Spatially Varying BRDFs  

Science Journals Connector (OSTI)

A new method fabricates custom surface reflectance and spatially varying bidirectional reflectance distribution functions (svBRDFs). Researchers optimize a microgeometry for a range of normal distribution functions and simulate the resulting surface's ... Keywords: Three-dimensional displays,Printing,Fabrication,Computational modeling,Solid modeling,Printers,Face recognition,computer graphics,bidirectional reflectance distribution function,BRDF,spatially varying bidirectional reflectance distribution function,svBRDF,3D printing,normal distribution function,NDF,microgeometry,surface reflectance

Olivier Rouiller; Bernd Bickel; Wojciech Matusik; Marc Alexa; Jan Kautz

2013-11-01T23:59:59.000Z

97

Dual spatial maps of transcript and protein abundance in the...  

NLE Websites -- All DOE Office Websites (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...

98

ReproducedfromVadoseZoneJournal.PublishedbySoilScienceSocietyofAmerica.Allcopyrightsreserved. Obtaining the Spatial Distribution of Water Content along a TDR Probe  

E-Print Network (OSTI)

Modeling Scheme Timo J. Heimovaara,* Johan A. Huisman, Jasper A. Vrugt, and Willem Bouten ABSTRACT along

Vrugt, Jasper A.

99

Evaluation of Residential Area Proposals Using Spatial Interaction Measure: Case Study of Denizli, Turkey  

Science Journals Connector (OSTI)

Abstract Spatial interaction may be defined as potentiality of people to reach the opportunities in urban areas. Land use plans or transportation plans directly affect the potential of spatial interaction. Thus, amount of spatial interaction correspondingly changes with the planning impacts. This study aims to find and utilize spatial interaction change in decision making stages of residential area proposals. Impedance matrices and land use data have been obtained from urban public transportation plan and land use plan of Denizli, Turkey. The spatial interaction of the city has been found by using potential accessibility (PA) measure for the current situation. PA has been calculated for the projection year (2030) and its change has been obtained. A land use regulation algorithm have been offered to find out the amount of area which is required to regain the decreased PA. The space which is proper for residential stock has been compared with the pretended residential area in zonal case. Thus, the zones which are proper for new residential are proposals have been determined.

Gorkem Gulhan; Halim Ceylan; Soner Haldenbilen

2014-01-01T23:59:59.000Z

100

Time asymmetric spacetimes near null and spatial infinity. I. Expansions of developments of conformally flat data  

E-Print Network (OSTI)

The Conformal Einstein equations and the representation of spatial infinity as a cylinder introduced by Friedrich are used to analyse the behaviour of the gravitational field near null and spatial infinity for the development of data which are asymptotically Euclidean, conformally flat and time asymmetric. Our analysis allows for initial data whose second fundamental form is more general than the one given by the standard Bowen-York Ansatz. The Conformal Einstein equations imply upon evaluation on the cylinder at spatial infinity a hierarchy of transport equations which can be used to calculate in a recursive way asymptotic expansions for the gravitational field. It is found that the the solutions to these transport equations develop logarithmic divergences at certain critical sets where null infinity meets spatial infinity. Associated to these, there is a series of quantities expressible in terms of the initial data (obstructions), which if zero, preclude the appearance of some of the logarithmic divergences. The obstructions are, in general, time asymmetric. That is, the obstructions at the intersection of future null infinity with spatial infinity are different, and do not generically imply those obtained at the intersection of past null infinity with spatial infinity. The latter allows for the possibility of having spacetimes where future and past null infinity have different degrees of smoothness. Finally, it is shown that if both sets of obstructions vanish up to a certain order, then the initial data has to be asymptotically Schwarzschildean to some degree.

J. A. Valiente Kroon

2004-08-26T23:59:59.000Z

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


101

Dynamic high-speed spatial manipulation of cold atoms using acousto-optic and spatial light modulation  

Science Journals Connector (OSTI)

We demonstrate an experimental technique for high-resolution, high-speed spatial manipulation of atom clouds. By combining holographically engineered laser beams from a spatial light...

Fatemi, F K; Bashkansky, M; Dutton, Z

2007-01-01T23:59:59.000Z

102

Future geodesic completeness of some spatially homogeneous solutions of the vacuum Einstein equations in higher dimensions  

E-Print Network (OSTI)

It is known that all spatially homogeneous solutions of the vacuum Einstein equations in four dimensions which exist for an infinite proper time towards the future are future geodesically complete. This paper investigates whether the analogous statement holds in higher dimensions. A positive answer to this question is obtained for a large class of models which can be studied with the help of Kaluza-Klein reduction to solutions of the Einstein-scalar field equations in four dimensions. The proof of this result makes use of a criterion for geodesic completeness which is applicable to more general spatially homogeneous models.

Arne Goedeke; Alan D. Rendall

2010-02-21T23:59:59.000Z

103

Integrating Brain Data Spatially: Spatial Data Infrastructure and Atlas Environment for Online  

E-Print Network (OSTI)

Integrating Brain Data Spatially: Spatial Data Infrastructure and Atlas Environment for Online Federation and Analysis of Brain Images Ilya Zaslavsky1 , Haiyun He2 , Joshua Tran1 , Maryann E. Martone2 Numerous digital atlases of the brain have been developed for different species through the efforts

Gupta, Amarnath

104

COMP 198 Spatial Reasoning and GIS Spring 2012 COMP 198 Spatial Reasoning and GIS  

E-Print Network (OSTI)

COMP 198 Spatial Reasoning and GIS Spring 2012 COMP 198 Spatial Reasoning and GIS MWF Lecture/Lab Mars Science 3100 (GIS Lab) 11:30-12:20 Who: Michael Gousie Where: Science Center 1325 When: Mon, Wed 1. But how do all these technologies work? They are all versions of a GIS. A Geographic Information System

Gousie, Michael B.

105

Measuring spatial variability in soil characteristics  

DOE Patents (OSTI)

The present invention provides systems and methods for measuring a load force associated with pulling a farm implement through soil that is used to generate a spatially variable map that represents the spatial variability of the physical characteristics of the soil. An instrumented hitch pin configured to measure a load force is provided that measures the load force generated by a farm implement when the farm implement is connected with a tractor and pulled through or across soil. Each time a load force is measured, a global positioning system identifies the location of the measurement. This data is stored and analyzed to generate a spatially variable map of the soil. This map is representative of the physical characteristics of the soil, which are inferred from the magnitude of the load force.

Hoskinson, Reed L. (Rigby, ID); Svoboda, John M. (Idaho Falls, ID); Sawyer, J. Wayne (Hampton, VA); Hess, John R. (Ashton, ID); Hess, J. Richard (Idaho Falls, ID)

2002-01-01T23:59:59.000Z

106

Beyond location based: the spatially aware mobile phone  

Science Journals Connector (OSTI)

An increasing number of mobile phones feature embedded sensors such as GPS receivers, digital compasses or accelerometer-based tilt sensors. In this paper, we present an application framework for building spatially aware mobile applications applications ... Keywords: geo-spatial information, location based services, personal spatial assistants, spatial information appliances

Rainer Simon; Peter Frhlich; Hermann Anegg

2006-12-01T23:59:59.000Z

107

3 Fundamentals of spatial data warehousing for geographic  

E-Print Network (OSTI)

3 Fundamentals of spatial data warehousing for geographic knowledge discovery Yvan Bédard, Tim Data Base Management System (RDBMS). Today, spatial databases are also implemented in spatial packages using so-called 'data cubes' and in spatial data warehouses. Such databases are structured

108

Mining Spatial Association Rules in Census Data: A Relational Approach  

E-Print Network (OSTI)

Mining Spatial Association Rules in Census Data: A Relational Approach Donato Malerba, Francesca A involving spatial relations among (spatial) objects. The method is based on a multi-relational data mining by traditional statistical techniques in spatial data analysis. The proposed method has been implemented

Malerba, Donato

109

A Data Partitioning Scheme for Spatial Regression Slobodan Vucetic1  

E-Print Network (OSTI)

A Data Partitioning Scheme for Spatial Regression Slobodan Vucetic1 , Tim Fiez2 and Zoran Obradovic dealing with agricultural problems characterized with strong spatial data correlation. A sim- ple spatial better generalization is proposed. Also, integration of predictors formed from spatially partitioned data

Vucetic, Slobodan

110

Spatial Data Algorithm Extension To TRAKLA2 Environment  

E-Print Network (OSTI)

Spatial Data Algorithm Extension To TRAKLA2 Environment Jussi Nikander Department of Computer In this paper an extension that brings spatial data al- gorithm support to the TRAKLA2 system is described and ideas for better spatial data support to the system are given. Keywords Spatial Data Algorithms

111

Finding Aggregate Proximity Relationships and Commonalities in Spatial Data Mining  

E-Print Network (OSTI)

Finding Aggregate Proximity Relationships and Commonalities in Spatial Data Mining Edwin M. Knorr interested in mining spatial data. Due to the ever­growing uses of spatial systems such as GIS's, there are already huge amounts of spatial data accumulated, presenting ample opportunities for data analysis

Knorr, Edwin M.

112

Spatial Data Models and Query Processing Hanan Samet  

E-Print Network (OSTI)

Spatial Data Models and Query Processing Hanan Samet Walid G. Aref Computer Science Department databases. The focus is on data models and query processing. Query optimization in a spatial environment is also brie y discussed. Keywords and phrases: spatial databases, data models, spatial query processing

Samet, Hanan

113

Data augmentation for a Bayesian spatial model involving censored observations  

E-Print Network (OSTI)

Data augmentation for a Bayesian spatial model involving censored observations Brooke L Fridley1 (fax) 1 #12;SUMMARY Spatial environmental data sometimes include below detection limit observations (i. We develop a measurement error Bayesian spatial model for the analysis of spatial data with censored

114

Spatial Data Mining: Database Primitives, Algorithms and Efficient DBMS Support  

E-Print Network (OSTI)

- 1 - Spatial Data Mining: Database Primitives, Algorithms and Efficient DBMS Support Martin Ester: Spatial data mining algorithms heavily depend on the efficient processing of neighbor- hood relations of these concepts will allow a tight integration of spatial data mining algo- rithms with a spatial database

Ester, Martin

115

DISSERTATION ETH No. 12374 Spatial Raster Data Management  

E-Print Network (OSTI)

DISSERTATION ETH No. 12374 Spatial Raster Data Management for Geo-Information Systems A Database Concepts 9 2.1 Spatial Data Models and Raster Concepts 9 2.2 Spatial Raster Classes 11 23 Raster Data.5.1 Introduction 26 2.5.2 Significance in Raster Data Management 27 2.5.3 Metadata for Spatial Raster Data 28 2

Giger, Christine

116

Site characterization: a spatial estimation approach  

SciTech Connect

In this report the application of spatial estimation techniques or kriging to groundwater aquifers and geological borehole data is considered. The adequacy of these techniques to reliably develop contour maps from various data sets is investigated. The estimator is developed theoretically in a simplified fashion using vector-matrix calculus. The practice of spatial estimation is discussed and the estimator is then applied to two groundwater aquifer systems and used also to investigate geological formations from borehole data. It is shown that the estimator can provide reasonable results when designed properly.

Candy, J.V.; Mao, N.

1980-10-01T23:59:59.000Z

117

Generalised Recurrence Plot Analysis for Spatial Data  

E-Print Network (OSTI)

Recurrence plot based methods are highly efficient and widely accepted tools for the investigation of time series or one-dimensional data. We present an extension of the recurrence plots and their quantifications in order to study recurrent structures in higher-dimensional spatial data. The capability of this extension is illustrated on prototypical 2D models. Next, the tested and proved approach is applied to assess the bone structure from CT images of human proximal tibia. We find that the spatial structures in trabecular bone become more self-similar during the bone loss in osteoporosis.

Norbert Marwan; Juergen Kurths; Peter Saparin

2006-06-20T23:59:59.000Z

118

Coherence vortices in one spatial dimension  

SciTech Connect

Coherence vortices are screw-type topological defects in the phase of Glauber's two-point degree of quantum coherence, associated with pairs of spatial points at which an ensemble-averaged stochastic quantum field is uncorrelated. Coherence vortices may be present in systems whose dimensionality is too low to support spatial vortices. We exhibit lattices of such quantum-coherence phase defects for a one-dimensional model quantum system. We discuss the physical meaning of coherence vortices and propose how they may be realized experimentally.

Simula, Tapio P.; Paganin, David M. [School of Physics, Monash University, Victoria 3800 (Australia)

2011-11-15T23:59:59.000Z

119

Spatial Data Structures Spatial data structures describe the rules that are used to represent geographic data in geographic  

E-Print Network (OSTI)

Spatial Data Structures Spatial data structures describe the rules that are used to represent depending on those beneath it: · Conceptual spatial data models describe how geographic objects (for example, rivers) or phenomena are represented in GIS. · Logical spatial data models describe how geographic data

Stock, Kristin

120

Alleviating spatial conflict between people and biodiversity  

E-Print Network (OSTI)

settlements are expanding in species-rich regions and pose a serious threat to biodiversity conservation. We to the conservation implications of where people live. Human settlement patterns impact biodiversity directly (eAlleviating spatial conflict between people and biodiversity Gary W. Luck* , Taylor H. Ricketts

Vermont, University of

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121

SPATIAL LOGIC + TEMPORAL LOGIC =? Roman Kontchakov  

E-Print Network (OSTI)

are some standard spatial and tem- poral logics, and + is some `operator' combining these two logics power of the component logics are related to the complexity and expressiveness of the resulting spatio-temporal logic x under various combination operators +. #12;2 To convey the flavour of the problems we are facing

Kurucz, Agi

122

SPATIAL LOGIC+TEMPORAL LOGIC=? Roman Kontchakov  

E-Print Network (OSTI)

are some standard spatial and tem­ poral logics, and + is some `operator' combining these two logics power of the component logics are related to the complexity and expressiveness of the resulting spatio­temporal logic x under various combination operators +. #12; 2 To convey the flavour of the problems we

Zakharyaschev, Michael

123

Statistical Exposure Estimation Spatial Confounding Bias  

E-Print Network (OSTI)

, and 3 Account for spatial correlation in the health outcome data. Applications include air pollution Epidemiology Estimates of chronic health effects of air pollution are identified from cross-sectional (i Exposure Estimation Methods for Air Pollution Often researchers estimate ambient concentrations and use

Paciorek, Chris

124

Oracle Spatial and Graph Jayant Sharma  

E-Print Network (OSTI)

and Multimodal Networks ·Drive Time Polygon Analysis ·Trade Area Management ·Service Delivery Optimization ·Water affiliates. All rights reserved.13 Each mode (car, bus, rail, bike, etc) modeled as a separate network Performance for Spatial Workloads o Exploits Exadata's processing power, bandwidth, parallelism, security

Shahabi, Cyrus

125

Regulation mechanisms in spatial stochastic development models  

E-Print Network (OSTI)

The aim of this paper is to analyze different regulation mechanisms in spatial continuous stochastic development models. We describe the density behavior for models with global mortality and local establishment rates. We prove that the local self-regulation via a competition mechanism (density dependent mortality) may suppress a unbounded growth of the averaged density if the competition kernel is superstable.

Dmitri Finkelshtein; Yuri Kondratiev

2008-09-04T23:59:59.000Z

126

A Spatial Computing Architecture Implementing Computation Circuits  

E-Print Network (OSTI)

A Spatial Computing Architecture for Implementing Computation Circuits David Grant Supervisor: Dr Architecture Tools Preliminary Results Conclusions #12;3 Introduction Computational Circuits Software MB of memory ­ Add a few million gates ??? #12;5 Architecture and Tools to implement computational

Lemieux, Guy

127

GIS, SPATIAL STATISTICAL GRAPHICS, AND FOREST HEALTH.  

E-Print Network (OSTI)

1 GIS, SPATIAL STATISTICAL GRAPHICS, AND FOREST HEALTH. James J. Majure, Noel Cressie, Dianne Cook, and Jürgen Symanzik ABSTRACT This paper discusses the use of a geographic information systems (GIS), Arcview, into a geographic information system (GIS), Arcview 2.1 (ESRI 1995), and its use in the statistical analysis of spa

Symanzik, Jürgen

128

Bioinspired Environmental Coordination in Spatial Computing Systems  

E-Print Network (OSTI)

Bioinspired Environmental Coordination in Spatial Computing Systems Justin Werfel jkwerfel tissues. We suggest in closing a classification scheme for capabilities of environmental elements of environmental elements that we hope will aid the future study and design of such systems. This principle

Napp, Nils

129

Statistical Modelling of Spatial Extremes --Mathieu Ribatet Jstar'11 1 / 37 Statistical Modelling of Spatial Extremes  

E-Print Network (OSTI)

Modelling of Spatial Extremes Davison, A.C. Padoan, S.A. Ribatet, M. Institute of Mathematics, EPFL 2010 50100150 Gruningen-Hinwil 1970 1990 2010 50100150 Hallau-Kleine Scheid 1970 1990 2010 50100150

Ribatet, Mathieu

130

T-723:Adobe Flash Player Multiple Bugs Let Remote Users Obtain...  

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

Obtain Information, Conduct Cross-Site Scripting Attacks, and Execute Arbitrary Code T-723:Adobe Flash Player Multiple Bugs Let Remote Users Obtain Information, Conduct...

131

U-163: PHP Command Parameter Bug Lets Remote Users Obtain Potentially...  

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

63: PHP Command Parameter Bug Lets Remote Users Obtain Potentially Sensitive Information and Execute Arbitrary Code U-163: PHP Command Parameter Bug Lets Remote Users Obtain...

132

Principles of spatial database analysis and design This chapter covers the fundamentals of spatial database analysis and design, It begins by  

E-Print Network (OSTI)

, and by a description of the process to follow for spatial databases. Characteristics of spatial databases are discussed-server solutions, intranets or spatial data warehouses. Gone are the days of a spatial database implemented solely

133

Spatial and Spectral evolution of Turbulence Spectra  

SciTech Connect

We present a general formulation of a theory of spreading of turbulence based on nonlinear mode couplings, which is inherently linked to spectral evolution. We present a derivation from simple two-field perspective based upon a gradien diffusion hypothesis, justified by a two scale direct interaction approximation (TSDIA) for weak turbulence. The complexity and anisotropy of spatial and spectral dynamics, however, limits our analysis to examination of different classes of triad interactions. We demonstrate that radially extended eddys, are the most effective structures in promoting spreading of turbulence. Thus, spectral evolution that tends towards such eddies, facilitate spatial spreading. We also show that, in a two field model, due to their respective spectral tendencies, internal energy spreads faster than kinetic energy.

Guercan, Oe. D.; Diamond, P. H. [Center for Astrophysics and Space Sciences, La Jolla, CA 92093-0424 (United States); Department of Physics University of California at San Diego, La Jolla, CA 92093-0424 (United States); Department of Physics, University of California at San Diego, La Jolla, CA 92093-0319 (United States); Hahm, T. S. [Princeton Plasma Physics Laboratory, Princeton, NJ 08543-0451 (United States)

2006-11-30T23:59:59.000Z

134

Multi-model adaptive spatial hypertext  

E-Print Network (OSTI)

of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved as to style and content by: ________________________________ Frank M. Shipman, III (Chair of Committee) ________________________________ Richard K. Furuta (Member...-Model Adaptive Spatial Hypertext. (December 2004) Luis Francisco-Revilla, B.S., Universidad Iberoamericana; M.S., Texas A&M University Chair of Advisory Committee: Dr. Frank M. Shipman, III Information delivery on the Web often relies on general purpose Web...

Francisco-Revilla, Luis

2005-02-17T23:59:59.000Z

135

Diagnosing spatial variation patterns in manufacturing processes  

E-Print Network (OSTI)

. Outline of the dissertation A class of signal processing methods, usually referred to as blind source separation methods (Cardoso, 1998; Haykin, 2000), appears to provide a more black- box approach to identifying un-modeled manufacturing variation... to describe a number of related signal processing problems in which there is an array of spatially distributed sensors, each of which picks up signals from a number of distinct, signal-emitting sources (Cardoso, 1998; Haykin, 2000). Applications include...

Lee, Ho Young

2004-09-30T23:59:59.000Z

136

Multicriteria optimization of the spatial dose distribution  

SciTech Connect

Purpose: Treatment planning for radiation therapy involves trade-offs with respect to different clinical goals. Typically, the dose distribution is evaluated based on few statistics and dosevolume histograms. Particularly for stereotactic treatments, the spatial dose distribution represents further criteria, e.g., when considering the gradient between subregions of volumes of interest. The authors have studied how to consider the spatial dose distribution using a multicriteria optimization approach.Methods: The authors have extended a stepwise multicriteria optimization approach to include criteria with respect to the local dose distribution. Based on a three-dimensional visualization of the dose the authors use a software tool allowing interaction with the dose distribution to map objectives with respect to its shape to a constrained optimization problem. Similarly, conflicting criteria are highlighted and the planner decides if and where to relax the shape of the dose distribution.Results: To demonstrate the potential of spatial multicriteria optimization, the tool was applied to a prostate and meningioma case. For the prostate case, local sparing of the rectal wall and shaping of a boost volume are achieved through local relaxations and while maintaining the remaining dose distribution. For the meningioma, target coverage is improved by compromising low dose conformality toward noncritical structures. A comparison of dosevolume histograms illustrates the importance of spatial information for achieving the trade-offs.Conclusions: The results show that it is possible to consider the location of conflicting criteria during treatment planning. Particularly, it is possible to conserve already achieved goals with respect to the dose distribution, to visualize potential trade-offs, and to relax constraints locally. Hence, the proposed approach facilitates a systematic exploration of the optimal shape of the dose distribution.

Schlaefer, Alexander [Medical Robotics Group, Universitt zu Lbeck, Lbeck 23562, Germany and Institute of Medical Technology, Hamburg University of Technology, Hamburg 21073 (Germany)] [Medical Robotics Group, Universitt zu Lbeck, Lbeck 23562, Germany and Institute of Medical Technology, Hamburg University of Technology, Hamburg 21073 (Germany); Viulet, Tiberiu [Medical Robotics Group, Universitt zu Lbeck, Lbeck 23562 (Germany)] [Medical Robotics Group, Universitt zu Lbeck, Lbeck 23562 (Germany); Muacevic, Alexander; Frweger, Christoph [European CyberKnife Center Munich, Munich 81377 (Germany)] [European CyberKnife Center Munich, Munich 81377 (Germany)

2013-12-15T23:59:59.000Z

137

Adaptive spatial binning of integral-field spectroscopic data using Voronoi tessellations  

E-Print Network (OSTI)

We present new techniques to perform adaptive spatial binning of Integral-Field Spectroscopic (IFS) data to reach a chosen constant signal-to-noise ratio per bin. These methods are required for the proper analysis of IFS observations, but can also be used for standard photometric imagery or any other two-dimensional data. Various schemes are tested and compared by binning and extracting the stellar kinematics of the Sa galaxy NGC2273 from spectra obtained with the panoramic IFS SAURON.

Michele Cappellari; Yannick Copin

2003-02-13T23:59:59.000Z

138

Typograph: Multiscale Spatial Exploration of Text Documents  

SciTech Connect

Visualizing large document collections using a spatial layout of terms can enable quick overviews of information. These visual metaphors (e.g., word clouds, tag clouds, etc.) traditionally show a series of terms organized by space-filling algorithms. However, often lacking in these views is the ability to interactively explore the information to gain more detail, and the location and rendering of the terms are often not based on mathematical models that maintain relative distances from other information based on similarity metrics. In this paper, we present Typograph, a multi-scale spatial exploration visualization for large document collections. Based on the term-based visualization methods, Typograh enables multiple levels of detail (terms, phrases, snippets, and full documents) within the single spatialization. Further, the information is placed based on their relative similarity to other information to create the near = similar geographic metaphor. This paper discusses the design principles and functionality of Typograph and presents a use case analyzing Wikipedia to demonstrate usage.

Endert, Alexander; Burtner, Edwin R.; Cramer, Nicholas O.; Perko, Ralph J.; Hampton, Shawn D.; Cook, Kristin A.

2013-10-06T23:59:59.000Z

139

The Spatial Structure of Transnational Human Activity  

E-Print Network (OSTI)

Recent studies have shown that the spatial structures of animal displacements and local-scale human motion follow L\\'{e}vy flights. Whether transnational human activity (THA) also exhibits such a pattern has however not been thoroughly examined as yet. To fill this gap, this article examines the planet-scale spatial structure of THA (a) across eight types of mobility and communication and (b) in its development over time. Combining data from various sources, it is shown that the spatial structure of THA can indeed be approximated by L\\'{e}vy flights with heavy tails that obey power laws. Scaling exponent and power-law fit differ by type of THA, being highest in refuge-seeking and tourism and lowest in student exchange. Variance in the availability of resources and opportunities for satisfying associated needs appears to explain these differences. Over time, the L\\'{e}vy-flight pattern remains intact and remarkably stable, contradicting the popular idea that socio-technological trends lead to a "death of dista...

Deutschmann, Emanuel

2015-01-01T23:59:59.000Z

140

A Spatial View of Ensemble Spread in Convection Permitting Ensembles  

Science Journals Connector (OSTI)

With movement towards kilometer scale ensembles, new techniques are needed for their characterization. We present a new methodology for detailed spatial ensemble characterization using the Fractions Skill Score (FSS). To evaluate spatial forecast ...

Seonaid R. A. Dey; Giovanni Leoncini; Nigel M. Roberts; Robert S. Plant; Stefano Migliorini

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


141

Rapid Spatial Distribution Seismic Loss Analysis for Multistory Buildings  

E-Print Network (OSTI)

Tall building frames that respond to large seismic ground motions tend to have significant spatial variability of damage over their height, often with a concentration of that damage in the lower stories. In spite of this spatial variability...

Deshmukh, Pankaj Bhagvatrao

2012-07-16T23:59:59.000Z

142

The Mediterranean Sea under siege: spatial overlap between marine  

E-Print Network (OSTI)

RESEARCH PAPER The Mediterranean Sea under siege: spatial overlap between marine biodiversity of knowledge exists on individual anthropogenic threats that have an impact on marine biodiversity between marine biodiversity and threats is more pronounced and to assess their spatial overlap

Pauly, Daniel

143

Methods and workflow for spatial conservation prioritization using Zonation  

Science Journals Connector (OSTI)

Spatial conservation prioritization concerns the effective allocation of conservation action. Its stages include development of an ecologically based model of conservation value, data pre-processing, spatial prioritization analysis, and interpretation ... Keywords: Conservation planning, Decision analysis, Decision support tool, Spatial conservation prioritization, Systematic conservation planning, Zonation software

Joona Lehtomki; Atte Moilanen

2013-09-01T23:59:59.000Z

144

Relational Formalism for the Management of Spatial Data  

Science Journals Connector (OSTI)

......Formalism for the Management of Spatial...Department of Science, Agricultural...and Computer Science, University...modelling approaches, which have...developed for the management of spatial...Model for the Management of Spatial...Computer Science Department...modelling approaches. In Manolopoulos......

Nikos A. Lorentzos; Jose R. R. Viqueira

2006-01-01T23:59:59.000Z

145

A Polygon-based Methodology for Mining Related Spatial Datasets  

E-Print Network (OSTI)

, such as countries, and in that they can be used for the modeling of spatial events, such as air pollution. MoreoverA Polygon-based Methodology for Mining Related Spatial Datasets Sujing Wang, Chun-Sheng Chen clusters. This paper claims that polygon analysis is particularly useful for mining related, spatial

Eick, Christoph F.

146

Modeling Spatial Dependencies for Mining Geospatial Data: An Introduction  

E-Print Network (OSTI)

Modeling Spatial Dependencies for Mining Geospatial Data: An Introduction Sanjay Chawla \\Lambda Shashi Shekhar \\Lambda Weili Wu \\Lambda Uygar Ozesmi y May 25, 2000 Abstract Spatial data mining databases. Efficient tools for extracting information from spatial data sets can be of importance

Shekhar, Shashi

147

A test for stationarity for irregularly spaced spatial data  

E-Print Network (OSTI)

A test for stationarity for irregularly spaced spatial data Soutir Bandyopadhyay and Suhasini Subba, 2014 Abstract The analysis of spatial data is based on a set of assumptions, which in practice need. In this paper, a test for spatial stationarity for irregularly sampled data is proposed. The test is based

Subba Rao, Suhasini

148

Mining Spatial Data: Opportunities and Challenges of a Relational Approach  

E-Print Network (OSTI)

Mining Spatial Data: Opportunities and Challenges of a Relational Approach D. Malerba1 1: Spatial Data Mining, Multi-Relational Data Mining. Abstract Remote sensing and mobile devices nowadays collect a huge amount of spatial data which have to be analysed in order to discover interesting knowledge

Malerba, Donato

149

Finding Outliers in Models of Spatial Data David W. Scott  

E-Print Network (OSTI)

Finding Outliers in Models of Spatial Data David W. Scott Dept of Statistics, MS-138 Rice achieving final form. For example, outliers can adversely affect fits. In other cases involving spatial data the task of modeling spatial data, and makes us of advanced map visualization tools to understand

Scott, David W.

150

Integration of distributed spatial data in a decision making context  

E-Print Network (OSTI)

Integration of distributed spatial data in a decision making context Christelle Pierkot LIRMM, D deployment of communication networks has facilitated the sharing and exchange of spatial data between sites neither belong to the same organizations, but must cooperate. Spatial data is used to help user

Paris-Sud XI, Université de

151

Spatial Computing as Intensional Data Parallelism Antoine Spicher, Olivier Michel  

E-Print Network (OSTI)

Spatial Computing as Intensional Data Parallelism Antoine Spicher, Olivier Michel LACL Universit to illustrate this statement. Keywords-spatial computing, collection, data-fields, data flow, declarative definition, intensionnal programming, stream, data parallelism I. SPATIAL COMPUTING It is customary to make

Paris-Sud XI, Université de

152

Hyperspectral Data Classification Using Spectral-Spatial Approaches  

E-Print Network (OSTI)

Hyperspectral Data Classification Using Spectral-Spatial Approaches Yuliya Tarabalka1 , Jón Atli classification problem AVIRIS image Spatial resolution: 20m/pix Spectral resolution: 200 bands Ground-truth data.tarabalka@nasa.gov) Spectral-Spatial Classification of Hyperspectral Data 6 #12;Introduction Classification using segmentation

Dobigeon, Nicolas

153

Confidentiality and spatially explicit data: Concerns and challenges  

E-Print Network (OSTI)

Confidentiality and spatially explicit data: Concerns and challenges Leah K. VanWey* , Ronald R the new threats to the confidentiality of respondent data in spatially explicit social survey or census of ethical and high-quality science using such data: protection of confidentiality, the social­spatial

Columbia University

154

Modeling Spatial-Temporal Binary Data Using Markov Random Fields  

E-Print Network (OSTI)

Modeling Spatial-Temporal Binary Data Using Markov Random Fields Jun Zhu Department of Statistics to the autologistic model for spatial-temporal binary data. The model we propose is a Markov chain across time, where discuss the generality of our approach for modeling other types of spatial-temporal lattice data. Keywords

Huang, Su-Yun

155

FUZZY SPATIAL DATA MINING George Brannon Smith Susan M. Bridges  

E-Print Network (OSTI)

FUZZY SPATIAL DATA MINING George Brannon Smith Susan M. Bridges Department of Computer Science Box@cs.mssstate.edu Abstract A fuzzy spatial data mining technique has been developed to extract relationships describing been tested with hand-generated, synthetic, and sonar imagery. Keywords: data mining, spatial relations

Bridges, Susan M.

156

Nonparametric Spatial Models for Extremes: Application to Extreme Temperature Data.  

E-Print Network (OSTI)

Nonparametric Spatial Models for Extremes: Application to Extreme Temperature Data. Montserrat-developed, extending these tools to model spatial extreme data is an active area of research. In this paper, in order-developed. However, extending these tools to model spatial extreme data is an active area of research. One

Reich, Brian J.

157

Fourier based statistics for irregular spaced spatial data  

E-Print Network (OSTI)

Fourier based statistics for irregular spaced spatial data Suhasini Subba Rao Department A class of Fourier based statistics for irregular spaced spatial data is introduced, examples include. The Fourier based statistic is a quadratic form of a discrete Fourier-type transform of the spatial data

Subba Rao, Suhasini

158

DRAFT Chapter 7 Introduction to Spatial Data Mining  

E-Print Network (OSTI)

DRAFT Chapter 7 Introduction to Spatial Data Mining In this chapter we present an overview of some, of course, is on the mining of spatial data, but the set of techniques that we will discuss applies to many of data ev- ery day. Other large spatial databases include the U.S. census, and the weather and climate

Shekhar, Shashi

159

Spatial ordering and encoding for geographic data mining and visualization  

E-Print Network (OSTI)

Spatial ordering and encoding for geographic data mining and visualization Diansheng Guo & Mark, sales, or income). It is a challenging problem in spatial data mining and visualization to take possible. The ordering can then be used to spatially sort temporal or multivariate data series and thus

160

Common Spatial Patterns for Steady-State Somatosensory Evoked Potentials*  

E-Print Network (OSTI)

spatial pattern (CSP) method, which is the spatial feature extraction method most widely used for the motor imagery BCI paradigm, to SSSEP BCI. Experimental results show that our approach, where two CSP, which is referred to as "common spatial pattern (CSP)" method [4]. The CSP is one of the most

Choi, Seungjin

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


161

GIS and Spatial Analysis: Report on the Specialist Meeting  

E-Print Network (OSTI)

GIS and Spatial Analysis: Report on the Specialist Meeting Edited by A. Stewart Fotheringham-sponsored initiative on GIS and Spatial Analysis was first submitted to the Scientific Policy Committee of the NCGIA for initiatives on "GIS and Statistical Analysis" and "GIS and Spatial Modeling". The essence of the former

California at Santa Barbara, University of

162

Understanding the Causes of Spatial Variation in Pesticide Sorption and  

E-Print Network (OSTI)

1 Understanding the Causes of Spatial Variation in Pesticide Sorption and Degradation: Abdul Ghafoor) #12;Understanding the causes of spatial variation in pesticide degradation and sorption and sorption of pesticides in soils are both spatially variable and also among the most sensitive factors

163

Spatial Audio System for Surround Video Martin Morrell, 2  

E-Print Network (OSTI)

Spatial Audio System for Surround Video 1 Martin Morrell, 2 Chris Baume, 3 Joshua D. Reiss 1 In this paper we present the design processes of a spatial audio system for Surround Video. Surround Video reproduction, immersing them in the content. The design of a spatial audio system was necessary to give 360

Reiss, Josh

164

Spatial Spectra of Human ECG 1 Freeman et al. Spatial spectral analysis of human electrocorticograms including the  

E-Print Network (OSTI)

Spatial Spectra of Human ECG 1 Freeman et al. Spatial spectral analysis of human Spectra of Human ECG 2 Freeman et al. (AM) of a broad spectrum gamma oscillation having a similar

Freeman, Walter J.

165

Spatially Resolved STIS Spectroscopy of Betelgeuse's Outer Atmosphere  

E-Print Network (OSTI)

We present spatially resolved spectra observed with HST-STIS of the upper chromosphere and dust envelope of Alpha Orionis (M2 Iab). In the fall of 2002 a set of five high-resolution near-UV spectra was obtained by scanning at intensity peak-up position and four off-limb target positions up to one arcsecond, using a small aperture, to investigate the thermal conditions and flow dynamics in the outer atmosphere of this important nearby cool supergiant star. Based on Mg II h & k, Fe II 2716 A, C II 2327 A, and Al II ] 2669 A emission lines we provide the first evidence for the presence of warm chromospheric plasma at least 1 arcsecond away from the star at ~40 R* (1 R*~700 Rsun). The STIS spectra reveal that Betelgeuse's upper chromosphere extends far beyond the circumstellar H alpha envelope of ~5 R*, determined from previous ground-based imaging. The flux in the broad and self-absorbed resonance lines of Mg II decreases by a factor of ~700 compared to the flux at chromospheric disk center. We observe strong asymmetry changes in the Mg II h and Si I resonance line profiles when scanning off-limb, signaling the outward acceleration of gas outflow in the upper chromosphere. From the radial intensity distributions of Fe I and Fe II emission lines we determine the radial non-LTE iron ionization balance. We compute that the local kinetic gas temperatures of the warm chromospheric gas component in the outer atmosphere exceed 2600 K, when assuming local gas densities of the cool gas component we determine from radiative transfer models that fit the 9.7 um silicate dust emission feature. The spatially resolved STIS spectra directly demonstrate that warm chromospheric plasma co-exisists with cool gas in Betelgeuse's circumstellar dust envelope.

A. Lobel; J. Aufdenberg; A. K. Dupree; R. L. Kurucz; R. P. Stefanik; G. Torres

2003-12-03T23:59:59.000Z

166

Modeling of Spatially Referenced Environmental and Meteorological Factors Influencing the Probability of Listeria Species Isolation from Natural Environments  

Science Journals Connector (OSTI)

...Table 1) were obtained for 13 NYS counties where sampling was performed, namely...road, we used road data for the NYS counties where samples were collected as well as for two nearby counties, Oneida and Clinton (45). Spatial data on...

R. Ivanek; Y. T. Grhn; M. T. Wells; A. J. Lembo Jr.; B. D. Sauders; M. Wiedmann

2009-07-31T23:59:59.000Z

167

Human nature is finer: John Keats's use of the pathetic fallacy in the 1820 volume of poetry  

E-Print Network (OSTI)

'S PATHETIC FALLACIES IN THE FIVE 39 ODES AND THE MINOR POEMS 47 Introduction "Ode to a Nightingale" "Ode on a Grecian Urn" "Ode to Psyche" " T o Au turn n " 49 51 53 54 "Ode on Melancholy" "Fancy" "Lines on the Mermaid Tavern" "Robin Hood" 55... theory of art could only be achieved through the use of the absolute truth 13 and a love of reality. Arriving at almost the same con- elusion, J. D. Thomas believes that the pathetic fallacy developed out of Ruskin's attempt to account...

Pharis, Mary Jane Fleming

1979-01-01T23:59:59.000Z

168

E-Print Network 3.0 - applying spatial thinking Sample Search...  

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

Summary: on geographic information science, spatial analysis, and accuracy in geographic data. "Spatial thinking applies... Analysis Application Applying Concepts of Spatial...

169

A new method for spatial analysis of irregularly spaced HLB data and biological implications  

E-Print Network (OSTI)

in the analysis of spatial data usually require that data beon irregularly spaced spatial data. Wavelet analysis is afor spatial analysis of irregularly spaced HLB data and

Kriss, Alissa B.; Irey, Michael S.; Gottwald, Tim R.

2014-01-01T23:59:59.000Z

170

E-Print Network 3.0 - assess spatial learning Sample Search Results  

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

Summary: -TRAN computationally feasible. Another effort at UCSB has been to assess the spatial data quality and to reduce spatial... in spatial cognition and its related...

171

Subsystem codes with spatially local generators  

Science Journals Connector (OSTI)

We study subsystem codes whose gauge group has local generators in two-dimensional (2D) geometry. It is shown that there exists a family of such codes defined on lattices of size LL with the number of logical qubits k and the minimum distance d both proportional to L. The gauge group of these codes involves only two-qubit generators of type XX and ZZ coupling nearest-neighbor qubits (and some auxiliary one-qubit generators). Our proof is not constructive as it relies on a certain version of the Gilbert-Varshamov bound for classical codes. Along the way, we introduce and study properties of generalized Bacon-Shor codes that might be of independent interest. Secondly, we prove that any 2D subsystem [n,k,d] code with spatially local generators obeys upper bounds kd=O(n) and d2=O(n). The analogous upper bound proved recently for 2D stabilizer codes is kd2=O(n). Our results thus demonstrate that subsystem codes can be more powerful than stabilizer codes under the spatial locality constraint.

Sergey Bravyi

2011-01-26T23:59:59.000Z

172

Marine protected areas and the value of spatially optimized fishery management  

E-Print Network (OSTI)

Science and Management, c Earth Research Institute, and d Department of Geography, University on marine spatial planning, including spatial fisheries management. Some spatial management approaches to increase fishery returns, but the potential for the broader class of spatial management approaches

Siegel, David A.

173

Spatially indirect excitons in coupled quantum wells  

SciTech Connect

Microscopic quantum phenomena such as interference or phase coherence between different quantum states are rarely manifest in macroscopic systems due to a lack of significant correlation between different states. An exciton system is one candidate for observation of possible quantum collective effects. In the dilute limit, excitons in semiconductors behave as bosons and are expected to undergo Bose-Einstein condensation (BEC) at a temperature several orders of magnitude higher than for atomic BEC because of their light mass. Furthermore, well-developed modern semiconductor technologies offer flexible manipulations of an exciton system. Realization of BEC in solid-state systems can thus provide new opportunities for macroscopic quantum coherence research. In semiconductor coupled quantum wells (CQW) under across-well static electric field, excitons exist as separately confined electron-hole pairs. These spatially indirect excitons exhibit a radiative recombination time much longer than their thermal relaxation time a unique feature in direct band gap semiconductor based structures. Their mutual repulsive dipole interaction further stabilizes the exciton system at low temperature and screens in-plane disorder more effectively. All these features make indirect excitons in CQW a promising system to search for quantum collective effects. Properties of indirect excitons in CQW have been analyzed and investigated extensively. The experimental results based on time-integrated or time-resolved spatially-resolved photoluminescence (PL) spectroscopy and imaging are reported in two categories. (i) Generic indirect exciton systems: general properties of indirect excitons such as the dependence of exciton energy and lifetime on electric fields and densities were examined. (ii) Quasi-two-dimensional confined exciton systems: highly statistically degenerate exciton systems containing more than tens of thousands of excitons within areas as small as (10 micrometer){sup 2} were observed. The spatial and energy distributions of optically active excitons were used as thermodynamic quantities to construct a phase diagram of the exciton system, demonstrating the existence of distinct phases. Optical and electrical properties of the CQW sample were examined thoroughly to provide deeper understanding of the formation mechanisms of these cold exciton systems. These insights offer new strategies for producing cold exciton systems, which may lead to opportunities for the realization of BEC in solid-state systems.

Lai, Chih-Wei Eddy

2004-03-01T23:59:59.000Z

174

Effective Field Theory of Broken Spatial Diffeomorphisms  

E-Print Network (OSTI)

We study the low energy effective theory describing gravity with broken spatial diffeomorphism invariance. In the unitary gauge, the Goldstone bosons associated with broken diffeomorphisms are eaten and the graviton becomes a massive spin-2 particle with 5 well-behaved degrees of freedom. In this gauge, the most general theory is built with the lowest dimension operators invariant under only temporal diffeomorphisms. Imposing the additional shift and SO(3) internal symmetries, we analyze the perturbations on a FRW background. At linear perturbation level, the observables of this theory are characterized by six parameters, including the usual cosmological parameters and two additional coupling constants for the symmetry-breaking scalars. We discuss several examples relevant to theories of massive gravity.

Lin, Chunshan

2015-01-01T23:59:59.000Z

175

Spatial xenon oscillation control with expert systems  

SciTech Connect

Spatial power oscillations were attributed to the xenon transients in a reactor core in 1958 by Randall and St. John. These transients are usually initiated by a local reactivity insertion and lead to divergent axial flux oscillations in the core at constant power. Several heuristic manual control strategies and automatic control methods were developed to damp the xenon oscillations at constant power operations. However, after the load-follow operation of the reactors became a necessity of life, a need for better control strategies arose. Even though various advanced control strategies were applied to solve the xenon oscillation control problem for the load-follow operation, the complexity of the system created difficulties in modeling. The strong nonlinearity of the problem requires highly sophisticated analytical approaches that are quite inept for numerical solutions. On the other hand, the complexity of a system and heuristic nature of the solutions are the basic reasons for using artificial intelligence techniques such as expert systems.

Alten, S. (Turkish Atomic Energy Authority, Ankara (Turkey)); Danofsky, R.A. (Iowa State Univ., Ames, IA (United States))

1993-01-01T23:59:59.000Z

176

Spatial filters for high power lasers  

DOE Patents (OSTI)

A spatial filter includes a first filter element and a second filter element overlapping with the first filter element. The first filter element includes a first pair of cylindrical lenses separated by a first distance. Each of the first pair of cylindrical lenses has a first focal length. The first filter element also includes a first longitudinal slit filter positioned between the first pair of cylindrical lenses. The second filter element includes a second pair of cylindrical lenses separated by a second distance. Each of the second pair of cylindrical lenses has a second focal length. The second filter element also includes a second longitudinal slit filter positioned between the second pair of cylindrical lenses.

Erlandson, Alvin Charles; Bayramian, Andrew James

2014-12-02T23:59:59.000Z

177

Definition: SAR | Open Energy Information  

Open Energy Info (EERE)

SAR SAR Jump to: navigation, search Dictionary.png SAR Synthetic-aperture radar (SAR) is a form of radar whose defining characteristic is its use of relative motion, between an antenna and its target region, to provide distinctive long-term coherent-signal variations, that are exploited to obtain finer spatial resolution than is possible with conventional beam-scanning means. It originated as an advanced form of side-looking airborne radar (SLAR).[1] View on Wikipedia Wikipedia Definition Synthetic-aperture radar (SAR) is a form of radar whose defining characteristic is its use of relative motion, between an antenna and its target region, to provide distinctive long-term coherent-signal variations, that are exploited to obtain finer spatial resolution than is possible with

178

Spatial coherence effect on layer thickness determination in narrowband full-field optical coherence tomography  

SciTech Connect

Longitudinal spatial coherence (LSC) is determined by the spatial frequency content of an optical beam. The use of lenses with a high numerical aperture (NA) in full-field optical coherence tomography and a narrowband light source makes the LSC length much shorter than the temporal coherence length, hence suggesting that high-resolution 3D images of biological and multilayered samples can be obtained based on the low LSC. A simplified model is derived, supported by experimental results, which describes the expected interference output signal of multilayered samples when high-NA lenses are used together with a narrowband light source. An expression for the correction factor for the layer thickness determination is found valid for high-NA objectives. Additionally, the method was applied to a strongly scattering layer, demonstrating the potential of this method for high-resolution imaging of scattering media.

Safrani, Avner; Abdulhalim, Ibrahim

2011-06-20T23:59:59.000Z

179

Simulations of the spatial and temporal invariance in the spectra of gradual solar energetic particle events  

E-Print Network (OSTI)

The spatial and temporal invariance in the spectra of energetic particles in the gradual solar events is reproduced in the simulations. Based on a numerical solution of the focused transport equation, we obtain the intensity time profiles of solar energetic particles (SEPs) accelerated by an interplanetary shock in the three-dimensional interplanetary space. The shock is treated as a moving source of energetic particles with a distribution function. The time profiles of particle flux with different energies are calculated in the ecliptic at $1$ AU. We find that the spatial and temporal invariance in SEP spectra are the results of the effects of perpendicular diffusion and adiabatic cooling in the interplanetary space in our model. Furthermore, a spectra invariant region, which agrees with observations but is different than the one suggested by Reames and co-workers, is proposed based on our simulations.

Wang, Yang

2015-01-01T23:59:59.000Z

180

Some Dynamic Graphics for Spatial Data (with Multiple Attributes) in a GIS  

E-Print Network (OSTI)

Some Dynamic Graphics for Spatial Data (with Multiple Attributes) in a GIS Dianne Cook 1 , Noel. This paper discusses some multivariate exploratory spatial data analy­ sis tools for detecting spatial. canonical correlations, correlation tour, exploratory spatial data anal­ ysis, spatial dependence, spatial

Symanzik, Jürgen

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181

Some Dynamic Graphics for Spatial Data with Multiple Attributes in a GIS  

E-Print Network (OSTI)

Some Dynamic Graphics for Spatial Data with Multiple Attributes in a GIS Dianne Cook1, Noel Cressie discusses some multivariate exploratory spatial data analy- sis tools for detecting spatial dependence correlations, correlation tour, exploratory spatial data anal- ysis, spatial dependence, spatial statistics 1

Symanzik, Jürgen

182

A Survey of Spatial Data Mining Methods Databases and Statistics Point of Views  

E-Print Network (OSTI)

A Survey of Spatial Data Mining Methods Databases and Statistics Point of Views Karine Zeitouni PRi in common. KEYWORDS : Spatial Data Mining, Spatial Databases, Rules Induction, Spatial Statistics, Spatial data mining to spatial data. This recent technology is an extension of the data mining applied

Zeitouni, Karine

183

YALINA-booster subcritical assembly pulsed-neutron experiments : data processing and spatial corrections.  

SciTech Connect

The YALINA-Booster experiments and analyses are part of the collaboration between Argonne National Laboratory of USA and the Joint Institute for Power & Nuclear Research - SOSNY of Belarus for studying the physics of accelerator driven systems for nuclear energy applications using low enriched uranium. The YALINA-Booster subcritical assembly is utilized for studying the kinetics of accelerator driven systems with its highly intensive D-T or D-D pulsed neutron source. In particular, the pulsed neutron methods are used to determine the reactivity of the subcritical system. This report examines the pulsed-neutron experiments performed in the YALINA-Booster facility with different configurations for the subcritical assembly. The 1141 configuration with 90% U-235 fuel and the 1185 configuration with 36% or 21% U-235 fuel are examined. The Sjoestrand area-ratio method is utilized to determine the reactivities of the different configurations. The linear regression method is applied to obtain the prompt neutron decay constants from the pulsed-neutron experimental data. The reactivity values obtained from the experimental data are shown to be dependent on the detector locations inside the subcritical assembly and the types of detector used for the measurements. In this report, Bell's spatial correction factors are calculated based on a Monte Carlo model to remove the detector dependences. The large differences between the reactivity values given by the detectors in the fast neutron zone of the YALINA-Booster are reduced after applying the spatial corrections. In addition, the estimated reactivity values after the spatial corrections are much less spatially dependent.

Cao, Y.; Gohar, Y.; Nuclear Engineering Division

2010-10-11T23:59:59.000Z

184

Spatial GHG inventory at the regional level: accounting for uncertainty  

Science Journals Connector (OSTI)

Methodology and geo-information technology for spatial analysis of processes of greenhouse gas (GHG) emissions from mobile and stationary sources of...

R. Bun; Kh. Hamal; M. Gusti; A. Bun

2010-11-01T23:59:59.000Z

185

Spatial GHG inventory at the regional level: accounting for uncertainty  

Science Journals Connector (OSTI)

Methodology and geo-information technology for spatial analysis of processes of greenhouse gas (GHG) emissions from mobile and stationary sources of...

R. Bun; Kh. Hamal; M. Gusti; A. Bun

2011-01-01T23:59:59.000Z

186

Spatial And Temporal Geochemical Trends In The Hydrothermal System...  

Open Energy Info (EERE)

but each river is characterized by a distinct chemical composition, implying large-scale spatial heterogeneity in the inputs of the various solutes. The data also display...

187

The Variational Inequality Approach for Solving Spatial Auction ...  

E-Print Network (OSTI)

Mar 23, 2007 ... uted markets under capacity and balance constraints and show that solu- ... Spatial market problem, capacity constraints, variational in- equality...

2007-03-23T23:59:59.000Z

188

Modeling circulation in lakes: Spatial and temporal variations  

Science Journals Connector (OSTI)

ABSTRACT: The influence of spatial and temporal variations in wind forcing on the circulation in lakes is investigated using field data and the three-dimensional

189

Scaling of EPR spectral-spatial images with size of sample: Images of a sample greater than 5 cm in linear dimension  

SciTech Connect

The authors have obtained spectral-spatial EPR images of a phantom significantly larger than those previously obtained. Images of a homogeneous phantom 4.2 cm in diameter and 6.5 cm in length with B{sub 1} equivalent to that used for smaller samples give a similar linewidth resolution both with linewidth population distributions of width 0.1 {mu}T. Spatial resolution appeared to have modest degradation. Images of the large homogeneous phantom provide maps of the magnetic field of a partially shimmed magnet.

Ahn, Kang-Hyun; Subramanian, V. S.; Halpern, Howard J. [Department of Radiation and Cellular Oncology, University of Chicago, Chicago, Illinois 60637 and Center for EPR Imaging in Vivo Physiology, University of Chicago, Chicago, Illinois 60637 (United States)

2007-12-15T23:59:59.000Z

190

Spatial simulation of smallmouth bass in streams  

SciTech Connect

The hydropower industry and its regulators are hampered by the inability to predict the relationship between alternative flow regimes and fish population response. We have developed a spatially explicit, individual-based model of populations of small-mouth bass in streams as part of the Compensatory Mechanisms in Fish Populations Program (see Sale and Otto 1991). In the model, the profitability of alternative stream locations varies in response to habitat depth and velocity through changes in the frequency of prey encounters and the metabolic costs experienced by fish. We conducted an evaluation of our hydraulic simulation at the scale of individual stream cells. The potential error in predictions for individual cell velocities suggests that larger-scale model predictions for the representative reach are most appropriate. At this scale, the model appears to produce realistic patterns in the growth and dispersal of young-of-year small-mouth bass. This verification step allows us to proceed with greater confidence in evaluating the original question of how small-mouth bass populations respond to alternative flow regimes.

Jager, H.I.; Schmoyer, D.D.; Sale, M.J.; Van Winkle, W.; DeAngelis, D.L. [Oak Ridge National Lab., TN (United States); Sabo, M.J. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Dept. of Fisheries and Wildlife Sciences

1993-04-01T23:59:59.000Z

191

Spatial Corrections of ROSAT HRI Observations  

E-Print Network (OSTI)

X-ray observations with the ROSAT High Resolution Imager (HRI) often have spatial smearing on the order of 10 arcsec (Morse 1994). This degradation of the intrinsic resolution of the instrument (5 arcsec) can be attributed to errors in the aspect solution associated with the wobble of the space craft or with the reacquisition of the guide stars. We have developed a set of IRAF/PROS and MIDAS/EXSAS routines to minimize these effects. Our procedure attempts to isolate aspect errors that are repeated through each cycle of the wobble. The method assigns a 'wobble phase' to each event based on the 402 second period of the ROSAT wobble. The observation is grouped into a number of phase bins and a centroid is calculated for each sub-image. The corrected HRI event list is reconstructed by adding the sub-images which have been shifted to a common source position. This method has shown approx. 30% reduction of the full width half maximum (FWHM) of an X-ray observation of the radio galaxy 3C 120. Additional examples are presented.

D. E. Harris; J. D. Silverman; G. Hasinger; I. Lehmann

1998-11-08T23:59:59.000Z

192

U-163: PHP Command Parameter Bug Lets Remote Users Obtain Potentially  

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

3: PHP Command Parameter Bug Lets Remote Users Obtain 3: PHP Command Parameter Bug Lets Remote Users Obtain Potentially Sensitive Information and Execute Arbitrary Code U-163: PHP Command Parameter Bug Lets Remote Users Obtain Potentially Sensitive Information and Execute Arbitrary Code May 7, 2012 - 7:00am Addthis PROBLEM: PHP Command Parameter Bug Lets Remote Users Obtain Potentially Sensitive Information and Execute Arbitrary Code PLATFORM: Prior to 5.3.12 and 5.4.2 ABSTRACT: A vulnerability was reported in PHP. A remote user can obtain potentially sensitive information. A remote user can execute arbitrary code on the target system. reference LINKS: SecurityTracker Alert ID: 1027022 CVE-2012-1823 CVE-2012-2311 IMPACT ASSESSMENT: High Discussion: A remote user can submit a specially crafted request containing a command

193

U-076: OpenSSL Bugs Let Remote Users Deny Service, Obtain Information, and  

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

76: OpenSSL Bugs Let Remote Users Deny Service, Obtain 76: OpenSSL Bugs Let Remote Users Deny Service, Obtain Information, and Potentially Execute Arbitrary Code U-076: OpenSSL Bugs Let Remote Users Deny Service, Obtain Information, and Potentially Execute Arbitrary Code January 6, 2012 - 8:15am Addthis PROBLEM: OpenSSL Bugs Let Remote Users Deny Service, Obtain Information, and Potentially Execute Arbitrary Code PLATFORM: OpenSSL prior to 0.9.8s; 1.x prior to 1.0.0f ABSTRACT: A remote user may be able to execute arbitrary code on the target system. reference LINKS: SecurityTracker Alert ID: 1026485 OpenSSL Security Advisory IMPACT ASSESSMENT: High Discussion: Several vulnerabilities were reported in OpenSSL. A remote user can cause denial of service conditions. A remote user can obtain sensitive information. A remote user may be able to execute arbitrary code on the

194

Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition  

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

4 Fee Determinations: Requirement to Obtain 4 Fee Determinations: Requirement to Obtain Acquisition Executive's Input Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's Input Attached is Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's Input. Questions concerning this policy flash should be directed to Michael Righi of the Contract and Financial Assistance Policy Division, Office of Policy, Office Acquisition and Project Management at (202) 287-1337 or at Michael.Righi@hq.doe.gov. POLICY_FLASH_2013-24 disseminating the Dep Sec's memo of Jan 28 2013 on Fee Determ and AEs.pdf Fee Determinations - Requirement to Obtain Acquisition Executive's Input.pdf More Documents & Publications Policy Flash: 2013-52 Contractor Legal Management Requirements: Final Rule

195

Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition  

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

4 Fee Determinations: Requirement to Obtain 4 Fee Determinations: Requirement to Obtain Acquisition Executive's Input Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's Input Attached is Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's Input. Questions concerning this policy flash should be directed to Michael Righi of the Contract and Financial Assistance Policy Division, Office of Policy, Office Acquisition and Project Management at (202) 287-1337 or at Michael.Righi@hq.doe.gov. POLICY_FLASH_2013-24 disseminating the Dep Sec's memo of Jan 28 2013 on Fee Determ and AEs.pdf Fee Determinations - Requirement to Obtain Acquisition Executive's Input.pdf More Documents & Publications Policy Flash: 2013-52 Contractor Legal Management Requirements: Final Rule

196

U-053: Linux kexec Bugs Let Local and Remote Users Obtain Potentially  

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

53: Linux kexec Bugs Let Local and Remote Users Obtain 53: Linux kexec Bugs Let Local and Remote Users Obtain Potentially Sensitive Information U-053: Linux kexec Bugs Let Local and Remote Users Obtain Potentially Sensitive Information December 7, 2011 - 7:30am Addthis PROBLEM: Linux kexec Bugs Let Local and Remote Users Obtain Potentially Sensitive Information . PLATFORM: Red Hat Enterprise Linux Desktop (v. 6) Red Hat Enterprise Linux HPC Node (v. 6) Red Hat Enterprise Linux Server (v. 6) Red Hat Enterprise Linux Workstation (v. 6) ABSTRACT: Several vulnerabilities were reported in Linux kexec. A remote or local user can obtain potentially sensitive information. reference LINKS: Red Hat Security Advisory: RHSA-2011:1532-3 SecurityTracker Alert ID: 1026375 IMPACT ASSESSMENT: Medium Discussion: Kdump uses the SSH "StrictHostKeyChecking=no" option when dumping to SSH

197

U-017: HP MFP Digital Sending Software Lets Local Users Obtain Potentially  

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

7: HP MFP Digital Sending Software Lets Local Users Obtain 7: HP MFP Digital Sending Software Lets Local Users Obtain Potentially Sensitive Information U-017: HP MFP Digital Sending Software Lets Local Users Obtain Potentially Sensitive Information October 24, 2011 - 12:30pm Addthis PROBLEM: HP MFP Digital Sending Software Lets Local Users Obtain Potentially Sensitive Information . PLATFORM: HP MFP Digital Sending Software v4.91.21 and all previous 4.9x versions ABSTRACT: A vulnerability was reported in HP MFP Digital Sending Software. A local user can obtain potentially sensitive information. reference LINKS: HP Advisory ID: c03052686 SecurityTracker Alert ID: 1026228 CVE-2011-3163 IMPACT ASSESSMENT: Medium Discussion: A potential security vulnerability has been identified with HP MFP Digital Sending Software running on Windows. The vulnerability could result in

198

Application of GIS to spatial analysis of mesofault populations  

Science Journals Connector (OSTI)

This paper presents a GIS approach to spatial analysis of fault populations. Coherence between fault moment tensors, a concept borrowed from the geophysical works of Kagan and Knopoff [1985a. Geophysical Journal of the Royal Astronomical Society 81(2), ... Keywords: Faults, GIS customization, Spatial analysis, Structural analysis, Tensor

Mauro Alberti

2005-12-01T23:59:59.000Z

199

Hard lessons: effort-inducing interfaces benefit spatial learning  

Science Journals Connector (OSTI)

Interface designers normally strive for a design that minimises the user's effort. However, when the design's objective is to train users to interact with interfaces that are highly dependent on spatial properties (e.g. keypad layout or gesture shapes) ... Keywords: education, gesture stroke, learning, pen input, skill acquisition, spatial memory, text entry, training

Andy Cockburn; Per Ola Kristensson; Jason Alexander; Shumin Zhai

2007-04-01T23:59:59.000Z

200

The Rate of Accretion and Spatial Distribution of Sediments  

E-Print Network (OSTI)

The Rate of Accretion and Spatial Distribution of Sediments In the Great Sippewisset Salt Marsh the effects of location relative to the sediment source and tidal channel, elevation, tide magnitude, and marsh grass coverage on the spatial distribution of sediments in the system. I also quantified

Vallino, Joseph J.

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


201

A Spatial Planning and Analysis System for Wildland Fire Management  

E-Print Network (OSTI)

STARFIRE 11/29/2011 A Spatial Planning and Analysis System for Wildland Fire Management Welcome is an advanced and powerful spatial fire management planning and analysis system which is designed to provide visual and analytic support for fire management planning, decisions and communication. The system

202

Covariance Tapering for Interpolation of Large Spatial Datasets  

E-Print Network (OSTI)

Covariance Tapering for Interpolation of Large Spatial Datasets Reinhard FURRER, Marc G. GENTON results. An application to a large climatological precipitation dataset is presented as a concrete-based methods make it possible to analyze and fit large spatial datasets in a high level Reinhard Furrer

Genton, Marc G.

203

Universality for Multi-terminal Problems via Spatial Coupling  

E-Print Network (OSTI)

. Spatially Coupled Codes . . . . . . . . . . . . . . . . . . . 52 1. The (l; r; L) Ensemble . . . . . . . . . . . . . . . . . . 53 viii CHAPTER Page 2. The (l; r; L; w) Ensemble . . . . . . . . . . . . . . . . 54 3. Density Evolution of the (l; r; L; w... . . . . . . . . . . . . . . . . 61 V APPLICATIONS OF SPATIAL COUPLING* : : : : : : : : : : 67 A. The Noisy Slepian-Wolf Problem . . . . . . . . . . . . . . 67 1. The (l; r; L; w) Ensemble . . . . . . . . . . . . . . . . 68 2. Density Evolution of the (l; r; L; w) Ensemble...

Yedla, Arvind

2012-10-19T23:59:59.000Z

204

10 Leveraging the Power of Spatial Data Mining to  

E-Print Network (OSTI)

). As a toolbox, a GIS allows planners to perform spatial analysis using geo-processing functions, such as map (descriptive and predictive) patterns, which are never explicitly represented in topographic maps or in a GIS257 10 Leveraging the Power of Spatial Data Mining to Enhance the Applicability of GIS Technology

Malerba, Donato

205

Spatial working memory in rats: no differences between the sexes  

Science Journals Connector (OSTI)

...November 1999 research-article Spatial working memory in rats: no differences between the sexes Susan D Healy 1 2...spatial learning and memory abilities of male and female rats. The rats were tested across a number of consecutive days during...

1999-01-01T23:59:59.000Z

206

High Resolution Channel Quantization Rules for Multiuser Spatial Multiplexing Systems  

E-Print Network (OSTI)

) at the transmitter is critical for the operation of the multiuser spatial multiplexing systems. The base station, this information is provided either by training the base station on the reverse links in TDD systems the users. In practical systems, however, temporal and spatial power adaptation are essential as the users

Yu, Wei

207

Finite-temperature Yang-Mills theory in the Hamiltonian approach in Coulomb gauge from a compactified spatial dimension  

E-Print Network (OSTI)

Yang-Mills theory is studied at finite temperature within the Hamiltonian approach in Coulomb gauge by means of the variational principle using a Gaussian type ansatz for the vacuum wave functional. Temperature is introduced by compactifying one spatial dimension. As a consequence the finite temperature behavior is encoded in the vacuum wave functional calculated on the spatial manifold $\\mathbb{R}^2 \\times \\mathrm {S}^1 (L)$ where $L^{-1}$ is the temperature. The finite-temperature equations of motion are obtained by minimizing the vacuum energy density to two-loop order. We show analytically that these equations yield the correct zero-temperature limit while at infinite temperature they reduce to the equations of the $2$+$1$-dimensional theory in accordance with dimensional reduction. The resulting propagators are compared to those obtained from the grand canonical ensemble where an additional ansatz for the density matrix is required.

Heffner, J

2015-01-01T23:59:59.000Z

208

T-723:Adobe Flash Player Multiple Bugs Let Remote Users Obtain Information,  

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

3:Adobe Flash Player Multiple Bugs Let Remote Users Obtain 3:Adobe Flash Player Multiple Bugs Let Remote Users Obtain Information, Conduct Cross-Site Scripting Attacks, and Execute Arbitrary Code T-723:Adobe Flash Player Multiple Bugs Let Remote Users Obtain Information, Conduct Cross-Site Scripting Attacks, and Execute Arbitrary Code September 22, 2011 - 8:00am Addthis PROBLEM: Adobe Flash Player Multiple Bugs Let Remote Users Obtain Information, Conduct Cross-Site Scripting Attacks, and Execute Arbitrary Code. PLATFORM: Adobe Flash Player 10.3.183.7 and earlier versions for Windows, Macintosh, Linux and Solaris. Adobe Flash Player 10.3.186.6 and earlier versions for Android. ABSTRACT: An attacker can exploit this issue by enticing an unsuspecting victim into visiting a malicious website. reference LINKS: Adobe Security Bulletin

209

U-142: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain  

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

42: HP Onboard Administrator Bugs Let Remote Users Gain Access, 42: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain Information, and Conduct URL Redirection Attacks U-142: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain Information, and Conduct URL Redirection Attacks April 6, 2012 - 7:00am Addthis PROBLEM: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain Information, and Conduct URL Redirection Attacks PLATFORM: HP Onboard Administrator (OA) up to and including v3.32 ABSTRACT: A remote user can obtain potentially sensitive information. reference LINKS: HP Support Document ID: c03263573 SecurityTracker Alert ID: 1026889 CVE-2012-0128, CVE-2012-0129, CVE-2012-0130 IMPACT ASSESSMENT: High Discussion: Several vulnerabilities were reported in HP Onboard Administrator. A remote

210

U-142: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain  

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

2: HP Onboard Administrator Bugs Let Remote Users Gain Access, 2: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain Information, and Conduct URL Redirection Attacks U-142: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain Information, and Conduct URL Redirection Attacks April 6, 2012 - 7:00am Addthis PROBLEM: HP Onboard Administrator Bugs Let Remote Users Gain Access, Obtain Information, and Conduct URL Redirection Attacks PLATFORM: HP Onboard Administrator (OA) up to and including v3.32 ABSTRACT: A remote user can obtain potentially sensitive information. reference LINKS: HP Support Document ID: c03263573 SecurityTracker Alert ID: 1026889 CVE-2012-0128, CVE-2012-0129, CVE-2012-0130 IMPACT ASSESSMENT: High Discussion: Several vulnerabilities were reported in HP Onboard Administrator. A remote

211

RACK-1 expression and cytokine production in leukocytes obtained from AD patients  

Science Journals Connector (OSTI)

Background and aims: The purpose of this study was to evaluate in vitro cytokine production in blood leukocytes obtained from sporadic AD patients, aged controls and young individuals. Methods: D...

Marco Racchi; Elena Sinforiani; Stefano Govoni

2006-04-01T23:59:59.000Z

212

Experimental Results Obtained with the Positron-Annihilation Radiation Telescope of the Toulouse-Argonne Collaboration  

Science Journals Connector (OSTI)

We present laboratory measurements obtained with a ground-based prototype of a focusing positron-annihilation-radiation telescope developed by the Toulouse-Argonne collaboration. This balloon-borne telescope has ...

J. E. Naya; P. von Ballmoos; F. Albernhe; G. Vedrenne

1995-01-01T23:59:59.000Z

213

Obtaining Carbon Nanoparticles with the Use of Electric?Arc Discharge between Coaxial Electrodes  

Science Journals Connector (OSTI)

The structure of a setup and the results of experiments on obtaining carbon nanostructures with the use of a d.c. arc discharge between coaxial graphite electrodes have been presented. The discharge was stabil...

V. V. Chuprasov; M. S. Tret'yak

214

UNIVERSITY OF CONNECTICUT PRIMARY CARE INTERNAL MEDICINE RESIDENCY PROGRAM POSITIONS OBTAINED BY GRADUATES  

E-Print Network (OSTI)

UNIVERSITY OF CONNECTICUT PRIMARY CARE INTERNAL MEDICINE RESIDENCY PROGRAM POSITIONS OBTAINED Alikhan 2009 Connecticut UConn PCIM Chief Resident Sharon Dowell 2009 Connecticut UConn PCIM Chief Hospitalist Mehdi Makki 2009 Connecticut UConn PCIM Chief Resident Edgar Naut 2009 Connecticut Hospitalist

Oliver, Douglas L.

215

Optimization method for obtaining nearest-neighbour DNA entropies and enthalpies directly from melting temperatures  

Science Journals Connector (OSTI)

......require the knowledge of total sequence entropies and enthalpies which are not always available. Results: Here we implement and test a new melting temperature optimization method (MTO) where we obtain the NN parameters directly from the temperatures. In this......

Gerald Weber

2014-11-01T23:59:59.000Z

216

New method to obtain the power spectra of hidden variables and its application to ocean data  

Science Journals Connector (OSTI)

A novel method is proposed to obtain the power spectra of hidden variables in a chaotic time series. By embedding the data in phase space, and recording the conditional probability density of points that the t...

Wei en-bo; Tian Ji-wei; Xu Jin-shan

2001-03-01T23:59:59.000Z

217

Structure of aluminum hydroxide powders obtained as a byproduct of hydrogen fuel production  

Science Journals Connector (OSTI)

The structure of aluminum hydroxide powders obtained as byproducts of hydrogen fuel production was investigated. One of the main initial components comprised aluminum-magnesium chips with 0.6, 6 and 12 wt.% ma...

A. D. Shlyapin; A. Yu. Omarov; V. P. Tarasovskii; Yu. G. Trifonov

2013-09-01T23:59:59.000Z

218

Negative-ion mass spectra obtained with the aid of an electron-impact source  

Science Journals Connector (OSTI)

The negative-ion mass spectra of six natural compounds of various classes, obtained with the use of an EI ion source, have been characterized. The conditions for ... presuppose the occurrence of a process of seco...

Ya. V. Rashkes

1993-05-01T23:59:59.000Z

219

A Method for Data Processing to Obtain High-Quality XCTD Data  

Science Journals Connector (OSTI)

A data processing method to obtain high-quality data from an expendable conductivitytemperaturedepth (XCTD) profiler is proposed. By adjusting the mismatch of the response time of the temperature and conductivity sensors, systematic error (on ...

Hiroshi Uchida; Koji Shimada; Takeshi Kawano

2011-06-01T23:59:59.000Z

220

T-652: Mozilla Thunderbird Bugs Let Remote Users Obtain Cookies and Execute  

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

2: Mozilla Thunderbird Bugs Let Remote Users Obtain Cookies and 2: Mozilla Thunderbird Bugs Let Remote Users Obtain Cookies and Execute Arbitrary Code T-652: Mozilla Thunderbird Bugs Let Remote Users Obtain Cookies and Execute Arbitrary Code June 22, 2011 - 2:55pm Addthis PROBLEM: Multiple vulnerabilities were reported in Mozilla Thunderbird. A remote user can cause arbitrary code to be executed on the target user's system. A remote user can obtain cookies from another domain in certain cases. A remote user can create specially crafted HTML that, when loaded by the target user, will trigger a memory corruption error and execute arbitrary code on the target system [CVE-2011-2364, CVE-2011-2374, CVE-2011-2375, CVE-2011-2376]. The code will run with the privileges of the target user. PLATFORM: Mozilla Thunderbird prior to 3.1.11

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


221

SPATIAL DATA ANALYSIS WITH GIS: AN INTRODUCTION TO APPLICATION IN THE SOCIAL  

E-Print Network (OSTI)

SPATIAL DATA ANALYSIS WITH GIS: AN INTRODUCTION TO APPLICATION IN THE SOCIAL SCIENCES by Luc). #12;SPATIAL DATA ANALYSIS WITH GIS: AN INTRODUCTION TO APPLICATION IN THE SOCIAL SCIENCES INTRODUCTION What is Special About Spatial Data? An attention to location, spatial interaction, spatial structure

California at Santa Barbara, University of

222

Spatial Variation of Soil Type and Soil Moisture in the Regional Atmospheric Modeling System  

SciTech Connect

Soil characteristics (texture and moisture) are typically assumed to be initially constant when performing simulations with the Regional Atmospheric Modeling System (RAMS). Soil texture is spatially homogeneous and time-independent, while soil moisture is often spatially homogeneous initially, but time-dependent. This report discusses the conversion of a global data set of Food and Agriculture Organization (FAO) soil types to RAMS soil texture and the subsequent modifications required in RAMS to ingest this information. Spatial variations in initial soil moisture obtained from the National Center for Environmental Predictions (NCEP) large-scale models are also introduced. Comparisons involving simulations over the southeastern United States for two different time periods, one during warmer, more humid summer conditions, and one during cooler, dryer winter conditions, reveals differences in surface conditions related to increases or decreases in near-surface atmospheric moisture con tent as a result of different soil properties. Three separate simulation types were considered. The base case assumed spatially homogeneous soil texture and initial soil moisture. The second case assumed variable soil texture and constant initial soil moisture, while the third case allowed for both variable soil texture and initial soil moisture. The simulation domain was further divided into four geographically distinct regions. It is concluded there is a more dramatic impact on thermodynamic variables (surface temperature and dewpoint) than on surface winds, and a more pronounced variability in results during the summer period. While no obvious trends in surface winds or dewpoint temperature were found relative to observations covering all regions and times, improvement in surface temperatures in most regions and time periods was generally seen with the incorporation of variable soil texture and initial soil moisture.

Buckley, R.

2001-06-27T23:59:59.000Z

224

Validity of Fusion Imaging of Hamster Heart obtained by Fluorescent and Phase-Contrast X-Ray CT with Synchrotron Radiation  

SciTech Connect

Fluorescent X-ray CT (FXCT) to depict functional information and phase-contrast X-ray CT (PCCT) to demonstrate morphological information are being developed to analyze the disease model of small animal. To understand the detailed pathological state, integration of both functional and morphological image is very useful. The feasibility of image fusion between FXCT and PCCT were examined by using ex-vivo hearts injected fatty acid metabolic agent (127I-BMIPP) in normal and cardiomyopathic hamsters. Fusion images were reconstructed from each 3D image of FXCT and PCCT. 127I-BMIPP distribution within the heart was clearly demonstrated by FXCT with 0.25 mm spatial resolution. The detailed morphological image was obtained by PCCT at about 0.03 mm spatial resolution. Using image integration technique, metabolic abnormality of fatty acid in cardiomyopathic myocardium was easily recognized corresponding to anatomical structures. Our study suggests that image fusion provides important biomedical information even in FXCT and PCCT imaging.

Wu, J.; Takeda, T.; Lwin, Thet Thet; Huo, Q.; Minami, M. [Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8575 (Japan); Sunaguchi, N.; Murakami, T.; Mouri, S.; Nasukawa, S.; Fukami, T.; Yuasa, T.; Akatsuka, T. [Faculty of Engineering, Yamagata University, Yonezawa, Yamagata 992-8510 (Japan); Hyodo, K. [Institute of Material Science, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801 (Japan); Hontani, H. [Department of Computer Science and Engineering, Nagoya Institute of Technology, Nagoya, Aichi 466-8555 (Japan)

2007-01-19T23:59:59.000Z

225

Estimation of simultaneous systems of spatially interrelated cross sectional equations  

Science Journals Connector (OSTI)

In this paper we consider a simultaneous system of spatially interrelated cross sectional equations. Our specification incorporates spatial lags in the endogenous and exogenous variables. In modelling the disturbance process we allow for both spatial correlation as well as correlation across equations. The data set is taken to be a single cross section of observations. The model may be viewed as an extension of the widely used single equation Cliff-Ord model. We suggest computationally simple limited and full information instrumental variable estimators for the parameters of the system and give formal large sample results.

Harry H. Kelejian; Ingmar R. Prucha

2004-01-01T23:59:59.000Z

226

Bulletin of the Seismological Society of America, 90, 6, pp. 15281534, December 2000 Spatial Correlation of Seismic Slip at the HDR-Soultz Geothermal Site  

E-Print Network (OSTI)

injection well at Soultz-sou-Fore^ts Hot Dry Rock geothermal site (Alsace, France). Variograms obtained Correlation of Seismic Slip at the HDR-Soultz Geothermal Site: Qualitative Approach by Peter Starzec, Michael of fractures in a borehole. We found that variograms exhibiting spatial dependency correlated well with zones

227

ARM - Publications: Science Team Meeting Documents: Spatially Distributed  

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

Spatially Distributed CO2, Sensible, and Latent Heat Fluxes over the Spatially Distributed CO2, Sensible, and Latent Heat Fluxes over the Southern Great Plains Biraud, Sebastien Lawrence Berkeley National Laboratory Riley, William Lawrence Berkeley National Laboratory Fischer, Marc Lawrence Berkeley National Laboratory Torn, Margaret Lawrence Berkeley National Laboratoroy Berry, Joseph Carnegie Inst.of Washington Cooley, Heather Lawrence Berkeley National Laboratory Vegetation and vegetation processes strongly influence the spatial distribution of sensible and latent heat fluxes, as well as controlling ecosystem-atmosphere CO2 exchange. Estimating spatially distributed ecosystem fluxes is important for ARM cloud modeling and for the North American Carbon Program. We describe here a methodology to estimate surface energy fluxes and net ecosystem CO2 Exchange (NEE) continuously over the

228

Study of Fuzzy based Classifier Parameter across Spatial Resolution  

E-Print Network (OSTI)

Classification and interpretation of satellite images are complex processes and that may be affected by various factors. Most fuzzy based soft classification techniques have been used to provide a more appropriate and accurate area estimation when fine, medium and coarse spatial resolution data are being used. Spatial resolution determines the spatial details on the Earth surface and greatly reduces the problem of mixed pixel. This paper examines the effect of weighting exponent m ? parameter of fuzzy c-means (FCM) and possibilistic c-mean (PCM) classifiers with respect to entropy, an uncertainty indicator for different extracted classes. This paper measures uncertainty variations across spatial resolution for different class extraction. Uncertainty can be defined as skepticism wherein entropy is an absolute indicator of an

Rakesh Dwivedi; S. K. Ghosh

229

Towards Modeling Dynamic Behavior with Integrated Qualitative Spatial Relations  

Science Journals Connector (OSTI)

Situation awareness and geographic information systems in dynamic spatial systems such as road traffic management (RTM) aim to detect and predict critical situations on the basis of relations between entities....

Stefan Mitsch; Werner Retschitzegger

2011-01-01T23:59:59.000Z

230

Spatial organization of the international tourism flows in Jordan  

E-Print Network (OSTI)

Spatial organization of the international tourism flows in Jordan Abstract Package tours in Jordan show that one theory can not explain the whole tourism network at Jordan. In case of Amman

231

A training methodology for spatial orientation in spacecraft  

E-Print Network (OSTI)

This thesis investigates a way to use virtual reality techniques to teach space vehicle inhabitants about the configuration of their craft so that their performance in orientation and spatial memory tasks is improved. An ...

Buckland, Daniel Aaron

2006-01-01T23:59:59.000Z

232

Spatial Valuation of Open Space Externalities in Baltimore County, Maryland  

E-Print Network (OSTI)

Different open space types are assumed to be valued in different ways by the public. This thesis analyzes four spatially explicit hedonic models of Baltimore County, Maryland to examine the effect of six different open spaces types on house value...

Gurung, Kushal

2012-11-08T23:59:59.000Z

233

Planning support systems for spatial planning through social learning  

E-Print Network (OSTI)

This dissertation examines new professional practices in urban planning that utilize new types of spatial planning support systems (PSS) based on geographic information systems (GIS) software. Through a mixed-methods ...

Goodspeed, Robert (Robert Charles)

2013-01-01T23:59:59.000Z

234

Spatial Analysis Methods in Demography & Sustainability Science Rob Strawderman  

E-Print Network (OSTI)

Spatial Analysis Methods in Demography & Sustainability Science Rob Strawderman Department demography, and contemporary sustainability science, whether around planning, spatiotemporal modeling, Cornell University, Ithaca, NY 14853 College of Agriculture and Life Sciences College of Architecture, Art

Angenent, Lars T.

235

Measurement and Modeling of Spatial NH3 Storage Distributions...  

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

in a Commercial Small Port Cu Zeolite Urea SCR Catalyst Measurement and Modeling of Spatial NH3 Storage Distributions in a Commercial Small Port Cu Zeolite Urea SCR Catalyst...

236

Reading Abilities: Importance of Visual-Spatial Attention  

E-Print Network (OSTI)

Children with dyslexia may read poorly for several reasons. Recent research suggests that in addition to skills with language sounds, visual-spatial attention may be an important predictor of reading abilities.

Gabrieli, JohnD.E.

237

Fundamental clusters in spatial 22 games  

Science Journals Connector (OSTI)

...holds but equation (17) does not, does the central site protect...apply: 764 Ch. Hauert Fundamental clusters in spatial 2...note that the reverse does not necessarily hold...powerful approximations to fundamental clusters. 3. CLUSTER...

2001-01-01T23:59:59.000Z

238

Correctness of depiction in planar diagrams of spatial figures  

E-Print Network (OSTI)

We show that it is possible to decide whether a given planar diagram correctly depicts the spatial figure consisting of a planar quadrangle together with its shadow in another plane.

P. L. Robinson

2014-03-12T23:59:59.000Z

239

Spatially and polarization resolved plasmon mediated transmission through continuous metal  

E-Print Network (OSTI)

Spatially and polarization resolved plasmon mediated transmission through continuous metal films Y transmission through an embedded undulated continuous thin metal film under normal incidence. 1D undulations resolved, polarization independent transmission. Whereas the needed submicron microstructure lends itself

Boyer, Edmond

240

Measurement error caused by spatial misalignment in environmental epidemiology  

Science Journals Connector (OSTI)

......particulate matter generated by motor vehicles and birth weight in the greater Boston...spatial prediction. Environmental and Ecological Statistics (1999) 6:147-171. Gelman...Health-exposure modeling and the ecological fallacy. Biostatistics (2006) 7......

Alexandros Gryparis; Christopher J. Paciorek; Ariana Zeka; Joel Schwartz; Brent A. Coull

2009-04-01T23:59:59.000Z

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


241

Spatial distribution of deposition within a patch of vegetation  

E-Print Network (OSTI)

This laboratory study describes the spatial pattern of deposition observed in a patch of vegetation located at the wall of a channel. There are two sources of sediment flux to the patch: the advection of particles across ...

Zong, Lijun

242

Analysis of Spatial Performance of Meteorological Drought Indices  

E-Print Network (OSTI)

by policy makers and the general public. This study analyzes the spatial performance of interpolation methods for meteorological drought indices in the United States based on data from the Co-operative Observer Network (COOP) and United States Historical...

Patil, Sandeep 1986-

2013-01-14T23:59:59.000Z

243

A multisensory observer model for human spatial orientation perception  

E-Print Network (OSTI)

Quantitative "observer" models for spatial orientation and eye movements have been developed based on 1-G data from humans and animals (e.g. Oman 1982, 1991, Merfeld, et al 1993, 2002; Haslwanter 2000, Vingerhoets 2006). ...

Newman, Michael C. (Michael Charles)

2009-01-01T23:59:59.000Z

244

Stochastic model of heterogeneity in earthquake slip spatial distributions  

Science Journals Connector (OSTI)

......research-article Seismology Stochastic model of heterogeneity in earthquake slip spatial distributions Daniel Lavallee 1 Pengcheng Liu 1 Ralph J. Archuleta 1 2 1 Institute for Crustal Studies, University of California, Santa Barbara, CA 93106, California......

Daniel Lavalle; Pengcheng Liu; Ralph J. Archuleta

2006-05-01T23:59:59.000Z

245

Optimization of the Spatial and Temporal Fuel Distribution for Stable  

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

Optimization of the Spatial and Temporal Fuel Distribution for Stable Optimization of the Spatial and Temporal Fuel Distribution for Stable Combustion in Lean Premixed Combustors Speaker(s): Jong Guen Lee Date: November 30, 2000 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Robert Cheng The limited success that has been achieved to date in suppressing unstable combustion in lean premixed combustors has been based on the use one of three approaches: a pilot flame, active combustion control using either primary or secondary fuel flow modulation, or modification of the fuel time lag. What these approaches have in common is that they all involve changing the spatial and/or temporal fuel distribution in a manner, which suppresses a given instability. In this presentation, results are presented from an experimental study of the effect of the spatial and temporal fuel

246

High speed switching between arbitrary spatial light profiles  

Science Journals Connector (OSTI)

Complex images, inscribed into the spatial profile of a laser beam or even a single photon, offer a highly efficient method of data encoding. Here we present a prototype system which...

Radwell, N; Brickus, D; Clark, T W; Franke-Arnold, S

2014-01-01T23:59:59.000Z

247

Effects of a GIS Course on Three Components of Spatial Literacy  

E-Print Network (OSTI)

tests (spatial habits of mind inventory, spatial concepts and skills test, critical spatial thinking oral test) to measure students' performance on these three elements. Furthermore, this research investigated the relationship among the components. Pre...

Kim, Minsung

2012-02-14T23:59:59.000Z

248

Transductive Learning for Spatial Data Classification Michelangelo Ceci, Annalisa Appice, and Donato Malerba  

E-Print Network (OSTI)

Transductive Learning for Spatial Data Classification Michelangelo Ceci, Annalisa Appice, Italy {ceci,appice,malerba}@di.uniba.it Abstract. Learning classifiers of spatial data presents several among objects, the spatial autocorrelation and the abundance of unlabelled data which potentially convey

Malerba, Donato

249

U-240: Apple Remote Desktop Encryption Failure Lets Remote Users Obtain  

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

0: Apple Remote Desktop Encryption Failure Lets Remote Users 0: Apple Remote Desktop Encryption Failure Lets Remote Users Obtain Potentially Sensitive Information U-240: Apple Remote Desktop Encryption Failure Lets Remote Users Obtain Potentially Sensitive Information August 21, 2012 - 7:00am Addthis PROBLEM: Apple Remote Desktop Encryption Failure Lets Remote Users Obtain Potentially Sensitive Information PLATFORM: Apple Remote Desktop after 3.5.1 and prior to 3.6.1 ABSTRACT: A remote user can monitor potentially sensitive information. reference LINKS: Apple.com Apple Article: HT5433 SecurityTracker Alert ID: 1027420 CVE-2012-0681 IMPACT ASSESSMENT: Medium Discussion: A vulnerability was reported in Apple Remote Desktop. When a user connects to a third-party VNC server with the 'Encrypt all network data' setting enabled, network data is not encrypted. A remote user monitoring the

250

How to Obtain Authorization to Import and/or Export Natural Gas and LNG |  

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

How to Obtain Authorization How to Obtain Authorization to Import and/or Export Natural Gas and LNG How to Obtain Authorization to Import and/or Export Natural Gas and LNG LNG Exports | Long Terms | Blanket Authorizations | Vacate | Name Change | Contents of Application | FTA and non-FTA Countries Background Section 3 of the Natural Gas Act (NGA) (15 U.S.C. § 717b) prohibits the import or export of natural gas, including liquefied natural gas (LNG) from or to a foreign country without prior approval from the Department of Energy (DOE). Parties who want to enter into natural gas transactions with foreign sellers and buyers must file for an import and/or export authorization under the rules and procedures found in (10 CFR Part 590) of DOE's regulations. Procedures for Filing an Application

251

V-202: Cisco Video Surveillance Manager Bugs Let Remote Users Obtain  

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

2: Cisco Video Surveillance Manager Bugs Let Remote Users 2: Cisco Video Surveillance Manager Bugs Let Remote Users Obtain Potentially Sensitive Information V-202: Cisco Video Surveillance Manager Bugs Let Remote Users Obtain Potentially Sensitive Information July 25, 2013 - 2:52am Addthis PROBLEM: A remote user can obtain potentially sensitive information and modify some configuration settings. A remote user can exploit this to create, modify, and remove camera feeds, archives, logs, and users. PLATFORM: Cisco Video Surveillance Manager 7.1, 7.5 ABSTRACT: Two vulnerabilities were reported in Cisco Video Surveillance Manager REFERENCE LINKS: Security Tracker Alert ID: 1028827 CVE-2013-3429 CVE-2013-3430 CVE-2013-3431 IMPACT ASSESSMENT: Medium DISCUSSION: The vulnerability is due to an access control error that occurred. The

252

NETL: Releases & Briefs - NETL Scientists Obtain In Situ Spectrum of  

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

NETL Scientists Obtain In Situ Spectrum of Synthetic Methane Hydrate Sample NETL Scientists Obtain In Situ Spectrum of Synthetic Methane Hydrate Sample The National Energy Technology Laboratory's Methane Hydrate Research Team is investigating the physical properties of methane hydrates, including their use as a storage medium for natural gas. The Team has developed a method of obtaining Raman spectra of bulk, laboratory-prepared hydrate samples under the conditions of their synthesis. This unusual capability allows collection of vibrational spectroscopic data on samples unperturbed by changes in pressure and temperature, allowing new insights into hydrate structure, composition, and stability. This technique will be used to further provide important information about the hydrate, such as the presence of other cage types and the fraction of cages containing methane.

253

V-063: Adobe ColdFusion Bugs Let Remote Users Gain Access and Obtain  

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

3: Adobe ColdFusion Bugs Let Remote Users Gain Access and 3: Adobe ColdFusion Bugs Let Remote Users Gain Access and Obtain Information V-063: Adobe ColdFusion Bugs Let Remote Users Gain Access and Obtain Information January 7, 2013 - 1:00am Addthis PROBLEM: Adobe ColdFusion Bugs Let Remote Users Gain Access and Obtain Information PLATFORM: ColdFusion 10, 9.0.2, 9.0.1 and 9.0 for Windows, Macintosh and UNIX ABSTRACT: Adobe has identified three vulnerabilities affecting ColdFusion for Windows, Macintosh and UNIX REFERENCE LINKS: Adobe Security Bulletin APSA13-01 SecurityTracker Alert ID: 1027938 CVE-2013-0625 CVE-2013-0629 CVE-2013-0631 IMPACT ASSESSMENT: High DISCUSSION: A remote user can bypass authentication and take control of the target system [CVE-2013-0625]. Systems with password protection disabled or with no password set are affected.

254

Systematic Flights Obtain Long-Term Data Set of Cloud Properties  

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

Systematic Flights Obtain Long-Term Data Set of Cloud Properties Systematic Flights Obtain Long-Term Data Set of Cloud Properties Beginning in January 2009, the U.S. Department of Energy's Atmospheric Radiation Measurement (ARM) Climate Research Facility is sponsoring the first-of-its-kind long-term airborne research campaign to obtain data from low-level clouds above its Southern Great Plains (SGP) site. The five-month campaign is centered near Lamont, Oklahoma, a mid-latitude region that experiences a wide range of cloud types, including the "thin" clouds that are the focus of the campaign. Thin clouds contain so little water that the sun can be seen through them. Scientists refer to such clouds as "clouds with low-optical water depth," or CLOWD. Because these clouds are often tenuous and scattered, even some of the best

255

Design and feasibility study of a microgeneration system to obtain renewable energy from tidal currents  

Science Journals Connector (OSTI)

Tidal energy to obtain electrical energy is yet an unexploited renewable energy. Existing generator designs and prototypes are not feasible due to the high investment conditioned by their high rated powers and off-shore locations. In addition these prototypes are not readily available. This investigation presents a design of a microgeneration system with vertical axis microturbines. The design of the microturbines utilizes off-the-shelf electronic components thus reducing the initial investment. The nominal data for selection of power electronic components and the total energy that can be obtained in a year are calculated. The investigation also studies the feasibility of an 80?kW microgeneration system to be applied in Spain taking advantage of the actual electricity prices. The feasibility study quantifies the influence of the parameters: initial investment tidal current speed operation hours turbine efficiency price of electricity and number of microturbines obtaining the limiting values of the suitable scenarios.

2014-01-01T23:59:59.000Z

256

Spatial Quantum Signatures in Parametric Down-Conversion  

Science Journals Connector (OSTI)

We calculate the normal and time ordered spatial intensity correlation function of the signal field in a degenerate parametric oscillator below threshold, with spherical mirrors. In the far field, it exhibits a two peak structure, and the correlation is maximal between points opposite each other with respect to the axis of the system. This feature provides direct spatial evidence of the twin photon emission, and identifies states of the radiated field with local nonclassical squeezing properties.

I. Marzoli; A. Gatti; L. A. Lugiato

1997-03-17T23:59:59.000Z

257

Spectral-Spatial Diffusion of Resonantly Trapped Phonons  

Science Journals Connector (OSTI)

The observation of spectral and spatial diffusion of phonons in an Al2O3 crystal containing both inelastic and resonance-elastic scattering centers (two different species of impurity ions) is reported. Phonons were generated by pulsed far-infrared excitation at a fixed frequency and monitored by time-resolved detection at a different frequency. Analysis of the data leads to the determination of the basic parameters of spectral and spatial diffusion.

U. Happek; T. Holstein; K. F. Renk

1985-05-13T23:59:59.000Z

258

Use of Noncompetitive Procurements to Obtain Services at the Savannah River Site, IG-0862  

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

Use of Noncompetitive Use of Noncompetitive Procurements to Obtain Services at the Savannah River Site DOE/IG-0862 April 2012 U.S. Department of Energy Office of Inspector General Office of Audits and Inspections Department of Energy Washington, DC 20585 April 10, 2012 MEMORANDUM FOR THE SECRETARY FROM: Gregory H. Friedman Inspector General SUBJECT: INFORMATION: Audit Report on "Use of Noncompetitive Procurements to Obtain Services at the Savannah River Site" INTRODUCTION AND OBJECTIVE Savannah River Nuclear Solutions, LLC (SRNS), assumed management and operating responsibility for the Department of Energy's Savannah River Site located near Aiken, South Carolina, in August 2008. Under its contract, SRNS is responsible for environmental cleanup,

259

Spatially Interpolated Nonlinear Anodization in Synthetic Aperture Radar Imagery  

SciTech Connect

Spatially Interpolated Nonlinear Anodization in Synthetic Aperture Original formulation of spatially variant anodization for complex synthetic aperture radar (SAR) imagery oversampled at twice the Nyquist rate (2.OX). Here we report a spatially interpolating, noninteger-oversampled SVA sidelobe. The pixel's apparent IPR location is assessed by comparing its value to the sum of its value plus weighted comparable for exact interpolation. However, exact interpolation implies an ideal sine interpolator3 and large components may not be necessary. Note that P is the summation of IPR diagonal values. The value of a sine IPR on the diagonals is a sine-squared; values much less than cardinal direction (m, n) values. This implies that cardinal direction interpolation requires higher precision than diagonal interpolation. Consequently, we employed a smaller set. The spatially interpolated SVA used an 8-point/4-point sine interpolator described above. Table 1 shows the Table 1 results show a two-times speed-up using the 1.3x oversampled and spatially interpolated SVA over the Figure 1d. Detected results of 1.3x oversampled sine interpolated spatially variant

Eichel, Paul H.; Jakowatz, Jr., Charles V.; Yocky, David A.

1999-06-29T23:59:59.000Z

260

Spatial data analysis for exploration of regional scale geothermal resources  

Science Journals Connector (OSTI)

Abstract Defining a comprehensive conceptual model of the resources sought is one of the most important steps in geothermal potential mapping. In this study, Fry analysis as a spatial distribution method and 5% well existence, distance distribution, weights of evidence (WofE), and evidential belief function (EBFs) methods as spatial association methods were applied comparatively to known geothermal occurrences, and to publicly-available regional-scale geoscience data in Akita and Iwate provinces within the Tohoku volcanic arc, in northern Japan. Fry analysis and rose diagrams revealed similar directional patterns of geothermal wells and volcanoes, NNW-, NNE-, NE-trending faults, hotsprings and fumaroles. Among the spatial association methods, WofE defined a conceptual model correspondent with the real world situations, approved with the aid of expert opinion. The results of the spatial association analyses quantitatively indicated that the known geothermal occurrences are strongly spatially-associated with geological features such as volcanoes, craters, NNW-, NNE-, NE-direction faults and geochemical features such as hotsprings, hydrothermal alteration zones and fumaroles. Geophysical data contains temperature gradients over 100C/km and heat flow over 100mW/m2. In general, geochemical and geophysical data were better evidence layers than geological data for exploring geothermal resources. The spatial analyses of the case study area suggested that quantitative knowledge from hydrothermal geothermal resources was significantly useful for further exploration and for geothermal potential mapping in the case study region. The results can also be extended to the regions with nearly similar characteristics.

Majid Kiavarz Moghaddam; Younes Noorollahi; Farhad Samadzadegan; Mohammad Ali Sharifi; Ryuichi Itoi

2013-01-01T23:59:59.000Z

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


261

E-Print Network 3.0 - automatic spatially-adaptive balancing...  

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

balancing Page: << < 1 2 3 4 5 > >> 1 Automatic Spatially-Adaptive Balancing of Energy Terms for Image Segmentation Summary: Automatic Spatially-Adaptive Balancing of Energy Terms...

262

Spatial confinement and thermal deconfinement in the Gross-Neveu model  

SciTech Connect

We discuss the occurrence of spatial confinement and thermal deconfinement in the massive, D-dimensional, Gross-Neveu model with compactified spatial dimensions.

Malbouisson, J. M. C. [Instituto de Fisica, Universidade Federal da Bahia, 40210-340, Salvador, BA (Brazil); Khanna, F. C. [Theoretical Physics Institute, University of Alberta, Edmonton, Alberta T6G 2J1 (Canada); Malbouisson, A. P. C. [Centro Brasileiro de Pesquisas Fisicas/MCT, 22290-180, Rio de Janeiro, RJ (Brazil); Santana, A. E. [Instituto de Fisica, Universidade de Brasilia, 70910-900, Brasilia, DF (Brazil)

2007-06-19T23:59:59.000Z

263

Project Information Form Project Title Urban Spatial Structure and GHG Emissions  

E-Print Network (OSTI)

Project Information Form Project Title Urban Spatial Structure and GHG Emissions University UC specified GHG reduction targets. This requires clear evidence that links from urban spatial structure

California at Davis, University of

264

E-Print Network 3.0 - analyzing spatial-temporal gene-expression...  

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

Medicine 13 SPATIAL-TEMPORAL TECHNIQUES FOR PREDICTION AND COMPRESSION OF SOIL FERTILITY DATA Summary: SPATIAL-TEMPORAL TECHNIQUES FOR PREDICTION AND COMPRESSION OF SOIL FERTILITY...

265

E-Print Network 3.0 - access spatial methods Sample Search Results  

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

Zrich Collection: Computer Technologies and Information Sciences ; Geosciences 6 Spatial Data Mining, Michael May, Fraunhofer AIS 1 Spatial Data Mining for Customer...

266

E-Print Network 3.0 - aa spatial evaluation Sample Search Results  

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

of Michigan Collection: Computer Technologies and Information Sciences 23 Trends in Spatial Data Shashi Shekhar Summary: in spatial networks are difficult to model using the...

267

E-Print Network 3.0 - agence spatiale europenne Sample Search...  

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

to enhance business, to protect the environment, and to manage the massive amounts of spatial data... GEOG 371 Spatial Analysis GEOG 379 Introduction to Geographic Information...

268

U-024: IBM Lotus Sametime Configuration Servlet Lets Remote Users Obtain  

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

024: IBM Lotus Sametime Configuration Servlet Lets Remote Users 024: IBM Lotus Sametime Configuration Servlet Lets Remote Users Obtain Configuration Data U-024: IBM Lotus Sametime Configuration Servlet Lets Remote Users Obtain Configuration Data November 1, 2011 - 8:15am Addthis PROBLEM: IBM Lotus Sametime Configuration Servlet Lets Remote Users Obtain Configuration Data. PLATFORM: All Sametime Platforms : 7.0, 7.5, 7.5.1, 7.5.1.1, 7.5.1.2, 8.0, 8.0.1, 8.0.2, 8.5, 8.5.1, 8.5.1.1, 8.5.2 ABSTRACT: A remote user can obtain configuration information. reference lINKS: IBM Sametime Security Bulletin SecurityTracker Alert ID: 1026255 CVE-2011-1370 IMPACT ASSESSMENT: Medium Discussion: The Sametime server contains a configuration servlet that is accessed by several Sametime server processes. By default, this servlet does not require authentication, which could potentially allow an unauthorized user

269

Thermodynamic properties of the fcc Ising antiferromagnet obtained from precision density of states calculations  

E-Print Network (OSTI)

Thermodynamic properties of the fcc Ising antiferromagnet obtained from precision density of states May 2006 We calculate the density of states for the face-centered-cubic fcc Ising model with nearest of the fcc Ising antiferromagnet has been a long-standing problem in statistical physics, dating back to1

Ryan, Dominic

270

Obtaining enzymes in pure form was an essential prerequisite for understanding the  

E-Print Network (OSTI)

Obtaining enzymes in pure form was an essential prerequisite for understanding the underlying and affinity tag- ging2. In addition to the most basic task of identifying distinct enzymes that catalyze dis- tinct reactions (an endeavor that continues in the genomic era), enzymes were shown to exhibit high

Herschlag, Dan

271

The chemistry of minerals obtained from the combustion of Jordanian oil shale  

E-Print Network (OSTI)

gas compared to its neighboring countries. However, oil shale is an important and unutilized energyThe chemistry of minerals obtained from the combustion of Jordanian oil shale Awni Y. Al University, P.O. Box 78, Karak 61710, Jordan Received 21 November 2003 Abstract A characterization study

Shawabkeh, Reyad A.

272

ENERGY SPECTRUM OF PRIMARY COSMIC RAYS ABOVE 1017 OBTAINED USING AKENO 20 KM2  

E-Print Network (OSTI)

OG 6.3-3 ENERGY SPECTRUM OF PRIMARY COSMIC RAYS ABOVE 1017 EV OBTAINED USING AKENO 20 KM2 ARRAY M, Tokyo Institute of Technology, Tokyo 152, Japan . Institute of High Energy Physics, Academia Sinica these showers, 60 of them are initiated by primaries with energies larger than 1019 eV. The energy spectrum

273

Brain Phosphoproteome Obtained by a FASP-Based Method Reveals Plasma Membrane Protein Topology  

Science Journals Connector (OSTI)

Brain Phosphoproteome Obtained by a FASP-Based Method Reveals Plasma Membrane Protein Topology ... Taking advantage of Filter Assisted Sample Preparation (FASP) method for sample preparation, we performed an analysis of phosphorylation sites in mouse brain. ... Taking advantage of the recently developed Filter Assisted Sample Preparation (FASP) method for sample preparation, we performed an in-depth analysis of phosphorylation sites in mouse brain. ...

Jacek R. Wi?niewski; Nagarjuna Nagaraj; Alexandre Zougman; Florian Gnad; Matthias Mann

2010-04-26T23:59:59.000Z

274

A Journey toward Obtaining Our First NSF S-STEM (Scholarship) Grant  

E-Print Network (OSTI)

Terms Economics. Keywords Computer science, scholarship grant, underrepresented and minority groups. 1 Technology Engineering and Math) grant [2013] for the Department of Computer Science at FSU (the Florida four iterations prior to obtaining this grant. 2.1 Why Single Out Computer Science? The percentage

Wang, Andy

275

A Journey toward Obtaining Our First NSF S-STEM (Scholarship) Grant  

E-Print Network (OSTI)

Computer science, scholarship grant, underrepresented and minority groups. 1. INTRODUCTION The process) grant [2013] for the Department of Computer Science at FSU (the Florida State University). The purposeA Journey toward Obtaining Our First NSF S-STEM (Scholarship) Grant An-I Andy Wang, Gary Tyson

Whalley, David

276

Obtaining flaw images by the SAFT method taking the variable velocity of sound in a test object into account  

Science Journals Connector (OSTI)

A modification of the SAFT method for obtaining flaw images in test ... are presented. The images obtained by the SAFT method without taking different SVs into account...

E. G. Bazulin

2010-11-01T23:59:59.000Z

277

Graphically oriented method for obtaining atomic displacement fields in crystals from irreducible representations of space groups  

Science Journals Connector (OSTI)

A method for obtaining distortion fields in a crystal from a given irreducible representation of the underlying space group is described. The method, based on projection operators of group theory, is graphically oriented and therefore calculation-free. For an example (space group P421m), complete sets of representation matrices are analytically calculated for all irreducible representations which correspond to all wave vectors of the form k=(q,q,0). All 96 linear independent atomic displacement modes in the (331) supercell, which are induced by the two irreducible representations with k=(13,13,0), are explicitly determined: the obtained atomic displacement fields are plane waves with wave vector k.

Jrgen K. Gutmann and Horst Bhm

2000-06-01T23:59:59.000Z

278

Intensity-interferometric test of nuclear collision geometries obtained from the Boltzmann-Uehling-Uhlenbeck equation  

SciTech Connect

Two-proton correlation functions measured for the {sup 14}N+{sup 27}Al reaction at {ital E}/{ital A}=75 MeV are compared to correlation functions predicted for collision geometries obtained from numerical solutions of the Boltzmann-Uehling-Uhlenbeck (BUU) equation. The calculations are in rather good agreement with the experimental correlation function, indicating that the BUU equation gives a reasonable description of the space-time evolution of the reaction.

Gong, W.G.; Bauer, W.; Gelbke, C.K.; Carlin, N.; de Souza, R.T.; Kim, Y.D.; Lynch, W.G.; Murakami, T.; Poggi, G.; Sanderson, D.P.; Tsang, M.B.; Xu, H.M. (National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI (USA) Department of Physics Astronomy, Michigan State University, East Lansing, MI (USA)); Pratt, S. (Department of Physics, University of Wisconsin, Madison, WI (USA)); Fields, D.E.; Kwiatkowski, K.; Planeta, R.; Viola, V.E. Jr.; Yennello, S.J. (Indiana University Cyclotron Facility, Indiana University, Bloomington, IN (USA))

1990-10-22T23:59:59.000Z

279

Method for making graded I-III-VI.sub.2 semiconductors and solar cell obtained thereby  

DOE Patents (OSTI)

Improved cell photovoltaic conversion efficiencies are obtained by the simultaneous elemental reactive evaporation process of Mickelsen and Chen for making semiconductors by closer control of the evaporation rates and substrate temperature during formation of the near contact, bulk, and near junction regions of a graded I-III-VI.sub.2, thin film, semiconductor, such as CuInSe.sub.2 /(Zn,Cd)S or another I-III-VI.sub.2 /II-VI heterojunction.

Devaney, Walter E. (Seattle, WA)

1987-08-04T23:59:59.000Z

280

Parsing Glucose Entry into the Brain: Novel Findings Obtained with Enzyme-based Glucose Biosensors  

Science Journals Connector (OSTI)

Parsing Glucose Entry into the Brain: Novel Findings Obtained with Enzyme-based Glucose Biosensors ... Extracellular levels of glucose in brain tissue reflect dynamic balance between its gradient-dependent entry from arterial blood and its use for cellular metabolism. ... Second, we present data on glucose responses induced in the nucleus accumbens (NAc) by salient environmental stimuli and discuss the relationships between local neuronal activation and rapid glucose entry into brain tissue. ...

Eugene A Kiyatkin; Ken T Wakabayashi

2014-11-27T23:59:59.000Z

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


281

Hydrodynamic equations for electrons in graphene obtained from the maximum entropy principle  

SciTech Connect

The maximum entropy principle is applied to the formal derivation of isothermal, Euler-like equations for semiclassical fermions (electrons and holes) in graphene. After proving general mathematical properties of the equations so obtained, their asymptotic form corresponding to significant physical regimes is investigated. In particular, the diffusive regime, the Maxwell-Boltzmann regime (high temperature), the collimation regime and the degenerate gas limit (vanishing temperature) are considered.

Barletti, Luigi, E-mail: luigi.barletti@unifi.it [Dipartimento di Matematica e Informatica Ulisse Dini, Universit degli Studi di Firenze, Viale Morgagni 67/A, 50134 Firenze (Italy)

2014-08-15T23:59:59.000Z

282

Tafel slopes and corrosion rates obtained in the pre-Tafel region of polarization curves  

Science Journals Connector (OSTI)

A short review of previous attempts to determine Tafel slopes and corrosion rates from data obtained in the pre-Tafel region of polarization curves is followed by a description of the approach taken in the POLFIT program. Several examples are given of the application of this program including the use of factorial design experiments to determine the optimum conditions for formation of a chromate-free conversion coating on hot dipped galvanized steel.

Florian Mansfeld

2005-01-01T23:59:59.000Z

283

Electron beam method and apparatus for obtaining uniform discharges in electrically pumped gas lasers  

DOE Patents (OSTI)

A method and apparatus for obtaining uniform, high-energy, large-volume electrical discharges in the lasing medium of a gas laser whereby a high-energy electron beam is used as an external ionization source to ionize substantially the entire volume of the lasing medium which is then readily pumped by means of an applied potential less than the breakdown voltage of the medium. The method and apparatus are particularly useful in CO.sub.2 laser systems.

Fenstermacher, Charles A. (Los Alamos, NM); Boyer, Keith (Los Alamos, NM)

1986-01-01T23:59:59.000Z

284

Method and apparatus of periodically obtaining accurate opacity monitor readings of an exhaust gas stream  

SciTech Connect

This patent describes in an opacity monitor associated with an exhaust stack, the monitor having a transmitter and a receiving which cooperate to measure a quantity of particulate matter in an exhaust gas stream, a method of periodically obtaining opacity monitor readings. It comprises: shielding the monitor from the exhaust gas stream by placing two windows adjacent to the monitor, a first window being placed between the transmitter and the exhaust gas stream and a second window being placed between the receiver and the exhaust gas stream; cleaning at least one of the windows for a first predetermined time period by spraying a volatile nonflammable cleaning solvent onto the window by means of a sprayer intermittently operable during the first predetermined time period while wiping the window with a reciprocating wiper arm in resilient engagement therewith; then obtaining an opacity monitor reading by directing a light beam across the exhaust stack from the transmitter via the first window through the exhaust gas stream to the receiver via the second window; and alternately repeating the step of cleaning the window with the step of obtaining an opacity monitor reading.

Weaver, K.L.; Bellows, J.C.

1990-01-23T23:59:59.000Z

285

Monitoring the process to obtain red wine enriched in resveratrol and piceatannol without quality loss  

Science Journals Connector (OSTI)

Stilbene-enriched wine is considered an interesting new food product with added value as a consequence of the numerous health-promoting properties ascribed to it, mainly from its trans-resveratrol content. Postharvest grapes have been treated with ultraviolet-C light to produce stilbene-enriched grapes that were later used in a conventional winemaking process to obtain a red wine enriched in stilbenes. By measuring oenological parameters and stilbene concentration it has been possible to monitor both the quality parameters and stilbenes throughout the process. The maximum concentration in trans-resveratrol and piceatannol was obtained after pressing, but there was significant loss from grape to wine. A significant increase in both piceatannol and trans-resveratrol concentration (up to 26 times and 3.2 times higher than in control, respectively) was achieved in bottled wine. Regarding the oenological parameters, the wines obtained possessed good quality, apart from a herbaceous aroma, which could not be identified by GColfactometry.

Ral F. Guerrero; Beln Puertas; Maria J. Jimnez; Juan Cacho; Emma Cantos-Villar

2010-01-01T23:59:59.000Z

286

Impact of the spatial laser distribution on photocathode gun operation  

It is widely believed that a drive laser with uniform temporal and spatial laser profiles is required to generate the lowest emittance beam at the photoinjector. However, for a given 3 ps smooth-Gaussian laser temporal profile, our recent simulations indicate that a truncated-Gaussian laser spatial profile produces an electron beam with smaller emittance. The simulation results are qualitatively confirmed by later analytical calculation, and also confirmed by measurements: emittance reduction of ?25% was observed at the linac coherent light source (LCLS) injector with a truncated-Gaussian laser spatial profile at the nominal operating bunch charge of 150 pC. There was a significant secondary benefitlaser transmission through the iris for the truncated-Gaussian profile was about twice that compared to the nearly uniform distribution, which significantly loosens the laser power and quantum efficiency requirements for drive laser system and photocathode. Since February 9, 2012, the drive laser with the truncated-Gaussian spatial distribution has been used for LCLS routine user operations and the corresponding free electron laser power is at least the same as the one when using the nearly uniform spatial profile.

Zhou, Feng; Brachmann, Axel; Emma, Paul; Gilevich, Sasha; Huang, Zhirong

2012-09-01T23:59:59.000Z

287

Probing Spatial, Electronic Structures with X-ray Scattering, Spectroscopic  

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

Probing Spatial, Electronic Structures with X-ray Scattering, Spectroscopic Probing Spatial, Electronic Structures with X-ray Scattering, Spectroscopic Techniques Wednesday, September 5, 2012 - 10:45am SLAC, Bldg. 137, Room 226 Gang Chen Seminar: Structures at atomic scales are traditionally determined through X-ray crystallography that amplifies scattering intensities by introducing spatial periodicity. For amorphous materials and many macromolecules, such as viruses, proteins and biofilms, it is hard to determine structures due to their incapability to crystallize or change of configuration during crystallization. In this talk, I will present the application of X-ray reflectivity and a newly developed fluctuation X-ray scattering technique to study the structures of lipid membranes and randomly oriented nanoparticles. Three different types of domain registrations occurring with

288

Instrument Series: Spectroscopy and Diffraction High Spatial Resolution  

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

High Spatial Resolution High Spatial Resolution Secondary Ion Mass Spectrometry (NanoSIMS) EMSL's novel, new-generation ion microprobe extends high spatial resolution secondary ion mass spectrometry (NanoSIMS) analysis to extremely small areas (down to 50 nm) and volumes while maintaining high sensitivity (e.g., ppm in element imaging) at high mass resolution. NanoSIMS can measure up to seven ions in parallel, offering perfect isotopic ratio results from the same small volume for perfect image superimposition. NanoSIMS can be used for enhanced imaging of cellular structures; simultaneous imaging of elements/isotopes on minerals and soft surfaces at the nanoscale; and imaging elements and isotopes of aerosols, nanoparticles, and organic and inorganic surfaces. Research Applications

289

Spatial And Temporal Geochemical Trends In The Hydrothermal System Of  

Open Energy Info (EERE)

Spatial And Temporal Geochemical Trends In The Hydrothermal System Of Spatial And Temporal Geochemical Trends In The Hydrothermal System Of Yellowstone National Park- Inferences From River Solute Fluxes Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Spatial And Temporal Geochemical Trends In The Hydrothermal System Of Yellowstone National Park- Inferences From River Solute Fluxes Details Activities (2) Areas (1) Regions (0) Abstract: We present and analyze a chemical dataset that includes the concentrations and fluxes of HCO3-, SO42-, Cl-, and F- in the major rivers draining Yellowstone National Park (YNP) for the 2002-2004 water years (1 October 2001 - 30 September 2004). The total (molar) flux in all rivers decreases in the following order, HCO3- > Cl- > SO42- > F-, but each river is characterized by a distinct chemical composition, implying large-scale

290

Coherence area profiling in multi-spatial-mode squeezed states  

E-Print Network (OSTI)

The presence of multiple bipartite entangled modes in squeezed states generated by four wave mixing in atomic vapors enables ultra-trace sensing, imaging, and metrology applications that are impossible to achieve with single-spatial-mode squeezed states. For Gaussian seed beams, the spatial distribution of bipartite entangled modes, or coherence areas, across each beam is largely dependent on the spatial modes present in the pump beam, but it has proven difficult to map the distribution of these coherence areas in frequency and space. We demonstrate an accessible method to map the distribution of the coherence areas within these twin beams. We also show that the pump shape can impart different noise properties to each coherence area, and that it is possible to select and detect coherence areas with optimal squeezing with this approach.

Lawrie, B J; Otterstrom, N

2014-01-01T23:59:59.000Z

291

Fast Spatial Prediction of Global Processes from Satellite Data Hsin-Cheng Huang  

E-Print Network (OSTI)

Fast Spatial Prediction of Global Processes from Satellite Data Hsin-Cheng Huang Institute, statistically optimal, spatial prediction of global processes based on spatially irregular data. Importantly water and data is obvious. Using the usual stochastic methods of spatial prediction (e.g., Cressie, 1993

Huang, Su-Yun

292

Chapter Title Fundamentals of Spatial Data Warehousing for Geographic Knowledge Discovery  

E-Print Network (OSTI)

Chapter Title Fundamentals of Spatial Data Warehousing for Geographic Knowledge Discovery YVAN for spatial data warehousing) 2. Concepts and architectures of data warehouses 3. Spatial data warehousing 4. Conclusion: Challenges of spatial data warehousing for geographic knowledge discovery #12;1. Introduction

293

Trends in Spatial Data Shashi Shekhar , Pusheng Zhang , Yan Huang , Ranga  

E-Print Network (OSTI)

Chapter 3 Trends in Spatial Data Mining Shashi Shekhar #3; , Pusheng Zhang #3; , Yan Huang #3-192, 200 Union ST SE, Minneapolis, MN 55455 Abstract: Spatial data mining is the process of discovering patterns from traditional numeric and categorical data due to the complexity of spatial data types, spatial

Shekhar, Shashi

294

Efficient OLAP Operations in Spatial Data Warehouses Dimitris Papadias, Panos Kalnis, Jun Zhang and Yufei Tao  

E-Print Network (OSTI)

Efficient OLAP Operations in Spatial Data Warehouses Dimitris Papadias, Panos Kalnis, Jun Zhang paradigm, spatial data warehouses can be constructed to accelerate spatial OLAP operations. In this paper of huge amounts of data which need to be efficiently analyzed. In analogy to the non-spatial case

Papadias, Dimitris

295

Spatial Querying of Imaging Mass Spectrometry Data for the Biochemical Characterization of Anatomical Regions in Tissue  

E-Print Network (OSTI)

Spatial Querying of Imaging Mass Spectrometry Data for the Biochemical Characterization tissue section. In this paper we develop methods that enable spatial querying of MSI data. The objective that adds spatial information to mass spectral biochemical analysis. It delivers insight into the spatial

296

Spatial data analysis of regional development in Greater Beijing, China, in a GIS environment*  

E-Print Network (OSTI)

Spatial data analysis of regional development in Greater Beijing, China, in a GIS environment: Regional development, GIS, exploratory spatial data analysis, spatial regression, Greater Beijing 1@geog.utah.edu) Received: 2 May 2005 / Accepted: 20 October 2006 Abstract. This study investigates spatial dependence

Wei, Yehua Dennis

297

The Effect of Spatial Scale of Resistive Inhomogeneity on Defibrillation of Cardiac Tissue  

E-Print Network (OSTI)

conditions for successful defibrillation of functional reentry with large scale spatial inhomogeneity

Keener, James P.

298

Improving the predictive power of spatial statistical models of stream macroinvertebrates using weighted autocovariance functions  

Science Journals Connector (OSTI)

Spatial statistical stream-network models are useful for modelling physicochemical data, but to-date have not been fit to macroinvertebrate data. Spatial stream-network models were fit to three macroinvertebrate indices: percent pollution-tolerant taxa, ... Keywords: Aquatic monitoring, Macroinvertebrate index, Scale, Spatial autocorrelation, Spatial statistics

Jennifer C. Frieden, Erin E. Peterson, J. Angus Webb, Peter M. Negus

2014-10-01T23:59:59.000Z

299

Equatorial spread {ital F} effects on an HF path: Doppler spread, spatial coherence, and frequency coherence  

SciTech Connect

In August 1990 we participated in the Equatorial Ionospheric Studies sounding rocket campaign near Kwajalein Atoll in the equatorial Pacific region. The campaign included measurements of plasma density using rocket probes and coherent and incoherent scatter radar. During the campaign we fielded high-frequency ionospheric sounders over a bistatic path between Maloelap Atoll and Bikini Atoll in the Marshall Islands. The distance between the transmitters and receivers was 700 km; the ionospheric-reflection region was at 10.18; {degree}N, 168.40;{degree}E, near the magnetic equator. We made three types of measurements: Doppler spread and spatial coherence for a single-frequency CW path; frequency coherence of multiple CW paths; and Doppler spread and time-delay spread for a 60-kHz bandwidth path. We obtained such data over a period of 2 weeks for approximately 2 hours each evening; during this period spread {ital F} was common. Fifty percent of the evenings showed Doppler spread of greater than 6 Hz at the {minus}10 dB level (relative to the peak signal power) and greater than 15 Hz at the {minus}30 dB level. Forty percent of the evenings showed spatial coherence distance of less than 180 m in the direction normal to the bistatic path; 40{percent} of the evenings showed spatial coherence of less than 75 m in the direction parallel to the path. Seventy-five percent of the evenings showed coherence bandwidths of less than 1.5 kHz. {copyright} 1999 American Geophysical Union

Fitzgerald, T.J.; Argo, P.E.; Carlos, R.C. [Los Alamos National Laboratory, Los Alamos, New Mexico (United States)] [Los Alamos National Laboratory, Los Alamos, New Mexico (United States)

1999-01-01T23:59:59.000Z

300

Spatially resolved determination of the short-circuit current density of silicon solar cells via lock-in thermography  

SciTech Connect

We present a spatially resolved method to determine the short-circuit current density of crystalline silicon solar cells by means of lock-in thermography. The method utilizes the property of crystalline silicon solar cells that the short-circuit current does not differ significantly from the illuminated current under moderate reverse bias. Since lock-in thermography images locally dissipated power density, this information is exploited to extract values of spatially resolved current density under short-circuit conditions. In order to obtain an accurate result, one or two illuminated lock-in thermography images and one dark lock-in thermography image need to be recorded. The method can be simplified in a way that only one image is required to generate a meaningful short-circuit current density map. The proposed method is theoretically motivated, and experimentally validated for monochromatic illumination in comparison to the reference method of light-beam induced current.

Fertig, Fabian, E-mail: fabian.fertig@ise.fraunhofer.de; Greulich, Johannes; Rein, Stefan [Fraunhofer Institute for Solar Energy Systems ISE, Heidenhofstr. 2, D-79110 Freiburg (Germany)

2014-05-19T23:59:59.000Z

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


301

Reduction of CCD observations obtained with the Fabry-Perot scanning interferometer. II. Additional Procedures  

E-Print Network (OSTI)

We describe a software package used at the Special Astrophysical Observatory of the Russian Academy of Sciences to reduce and analyze the data obtained with the Fabry-Perot scanning interferometer. We already described most of the algorithms employed in our earlier Paper I (Moiseev, 2002). In this paper we focus on extra procedures required in the case of the use of a high-resolution Fabry-Perot interferometer: removal of ghosts and measurement of the velocity dispersion of ionized gas in galactic and extragalactic objects.

A. V. Moiseev; O. V. Egorov

2008-05-15T23:59:59.000Z

302

Comparison of product yields obtained from the New Albany Shale by different rapid heating retorting procedures  

SciTech Connect

Seven samples of New Albany Shale, Clegg Creek Member were independently evaluated for possible oil yield enhancement above Fischer Assay. Bulk samples were crushed, blended, sieved and riffled into representative aliquots and then divided between two laboratories. Samples were evaluated by the ASTM Fischer Assay and the Rapid Heat Up Assay (RHU). Results provided the first case of the independent evaluation of oil yield enhancement over Fischer Assay (FA) for eastern US oil shales carried out by different laboratories working on the same samples. Oil yield enhancements were obtained by both laboratories. Fischer Assay results were remarkably comparable indicating that reproducibility is possible for eastern US shale. Results from the assays are given.

Rubel, A.M.; Audeh, C.A.

1985-02-01T23:59:59.000Z

303

Digital Processing of Medical Images Obtained by a Si Microstrips Detector  

SciTech Connect

We studied the capability of Matlab in digital processing of breast tissues images with microcalcifications. We obtained digital images of different byopsies through a Bede X-ray tube, fixed at 20 kV and 1 mA. Radiation exposition time was varied. The byopsies were placed between a 120{mu}m collimator and a 128 strips detector, which was used to measure the absorption of X rays in the tissue. Matlab allowed the manipulation of digital images, and this software was intended to improve the identification of microcalcifications in breast tissues.

Diaz, Claudia C.; Montano, Luis M.; Fontaine, Marcos [Departamento de Fisica, Centro de Investigacion y de Estudios Avanzados del IPN, A. P. 14-740, 07000 Mexico, D. F. (Mexico); Leyva, Antonio [CEADEN, Calle 30 no. 502 e/ 5ta y 7ma Avenida, Playa, Havana (Cuba); Ortiz, Carlos M. [Clinica de Mama y Gineco-oncologia, Hospital General Tacuba, ISSSTE, Mexico, D. F. (Mexico)

2006-09-08T23:59:59.000Z

304

Results of the 2013 UT modeling benchmark obtained with models implemented in CIVA  

SciTech Connect

The 2013 Ultrasonic Testing (UT) modeling benchmark concerns direct echoes from side drilled holes (SDH), flat bottom holes (FBH) and corner echoes from backwall breaking artificial notches inspected with a matrix phased array probe. This communication presents the results obtained with the models implemented in the CIVA software: the pencilmodel is used to compute the field radiated by the probe, the Kirchhoff approximation is applied to predict the response of FBH and notches and the SOV (Separation Of Variables) model is used for the SDH responses. The comparison between simulated and experimental results are presented and discussed.

Toullelan, Gwnal; Raillon, Raphale; Chatillon, Sylvain [CEA, LIST, 91191Gif-sur-Yvette (France); Lonne, Sbastien [EXTENDE, Le Bergson, 15 Avenue Emile Baudot, 91300 MASSY (France)

2014-02-18T23:59:59.000Z

305

Cooling Energy Demand Evaluation by Meansof Regression Models Obtained From Dynamic Simulations  

E-Print Network (OSTI)

was calculated to be -8.78oC (Moscow in January) and maximum of 42.9 oC (Abu-Dhabi in August). The hourly values of outdoor air temperature and solar radiation were obtained using Trnsys (Trnsys, 2006) meteonorm files. b) Glazing surface and distribution... the ,,black-box,, function, dynamic simulations were conducted using Trnsys 16 software (Trnsys, 2005). The Trnsys building model, known as, Type 56, is compliant with general requirements of European Directive on the energy performance of buildings...

Catalina, T.; Virgone, J.

2011-01-01T23:59:59.000Z

306

Optimization and modeling studies for obtaining high injection efficiency at the Advanced Photon Source.  

SciTech Connect

In recent years, the optics of the Advanced Photon Source storage ring has evolved to a lower equilibrium emittance (2.5 nm-rad) at the cost of stronger sextupoles and stronger nonlinearities, which have reduced the injection efficiency from the virtual 100% of the high emittance mode. Over the years we have developed a series of optimizations, measurements, and modeling studies of the injection process, which allows us to obtain or maintain low injection losses. The above will be described along with the injection configuration.

Emery, L.; APS Operations Division

2005-01-01T23:59:59.000Z

307

Hamiltonian structure of reduced fluid models for plasmas obtained from a kinetic description  

E-Print Network (OSTI)

We consider the Hamiltonian structure of reduced fluid models obtained from a kinetic description of collisionless plasmas by Vlasov-Maxwell equations. We investigate the possibility of finding Poisson subalgebras associated with fluid models starting from the Vlasov-Maxwell Poisson algebra. In this way, we show that the only possible Poisson subalgebra involves the moments of zeroth and first order of the Vlasov distribution, meaning the fluid density and the fluid velocity. We find that the bracket derived in [Phys. Rev. Lett. 93, 175002 (2004)] which involves moments of order 2 is not a Poisson bracket since it does not satisfy the Jacobi identity.

Loc De Guillebon; Cristel Chandre

2012-04-19T23:59:59.000Z

308

Spatial and spectral effects in subcritical system pulsed experiments  

SciTech Connect

Accurate neutronic models are needed for the interpretation of pulsed experiments in subcritical systems. In this work, the extent of spatial and spectral effects in the pulse propagation phenomena is investigated and the analysis is applied to the GUINEVERE experiment. The multigroup cross section data is generated by the Monte Carlo SERPENT code and the neutronic evolution following the source pulse is simulated by a kinetic diffusion code. The results presented show that important spatial and spectral aspects need to be properly accounted for and that a detailed energy approach may be needed to adequately capture the physical features of the system to the pulse injection. (authors)

Dulla, S.; Nervo, M.; Ravetto, P. [Politecnico di Torino, Dipartimento Energia, Corso Duca degli Abruzzi, 24, 10129 Torino (Italy); Carta, M. [ENEA - C.R. CASACCIA, UTFISSM-PRONOC, Via Anguillarese, 301, 00123 S. Maria di Galeria (Italy)

2013-07-01T23:59:59.000Z

309

Spatial coherence measurement of sound in the northwest Pacific Ocean  

Science Journals Connector (OSTI)

An experiment on the transverse horizontal spatial coherence of sound propagating in the ocean was performed jointly by Chinese and Russian acousticians in the northwest Pacific Ocean in June 1990. Three hydrophones with spacings of 270 and 130 m were put in the water at a 30?m depth. The acoustic source with four cw (from 109 to 860 Hz) and a broadband pseudorandom noise signal was drifted at a depth of 100 m. Part of the measurement results of up to 140 km are presented in this paper. It seems that the spatial coherence was related to the amplitude of the received signals and rises considerably in convergence zones.

Dinghua Guan; Ruichao Zhu; Renhe Zhang; Yaoming Chen

1993-01-01T23:59:59.000Z

310

Covariant formulation of spatially non-symmetric kinetic equilibria in magnetized astrophysical plasmas  

SciTech Connect

Astrophysical plasmas in the surrounding of compact objects and subject to intense gravitational and electromagnetic fields are believed to give rise to relativistic regimes. Theoretical and observational evidences suggest that magnetized plasmas of this type are collisionless and can persist for long times (e.g., with respect to a distant observer, coordinate, time), while exhibiting geometrical structures characterized by the absence of well-defined spatial symmetries. In this paper, the problem is posed whether such configurations can correspond to some kind of kinetic equilibrium. The issue is addressed from a theoretical perspective in the framework of a covariant Vlasov statistical description, which relies on the method of invariants. For this purpose, a systematic covariant variational formulation of gyrokinetic theory is developed, which holds without requiring any symmetry condition on the background fields. As a result, an asymptotic representation of the relativistic particle magnetic moment is obtained from its formal exact solution, in terms of a suitably defined invariant series expansion parameter (perturbative representation). On such a basis, it is shown that spatially non-symmetric kinetic equilibria can actually be determined, an example being provided by Gaussian-like distributions. As an application, the physical mechanisms related to the occurrence of a non-vanishing equilibrium fluid 4-flow are investigated.

Cremaschini, Claudio, E-mail: claudiocremaschini@gmail.com; Stuchlk, Zden?k [Institute of Physics, Faculty of Philosophy and Science, Silesian University in Opava, Bezru?ovo nm.13, CZ-74601 Opava (Czech Republic)] [Institute of Physics, Faculty of Philosophy and Science, Silesian University in Opava, Bezru?ovo nm.13, CZ-74601 Opava (Czech Republic); Tessarotto, Massimo [Institute of Physics, Faculty of Philosophy and Science, Silesian University in Opava, Bezru?ovo nm.13, CZ-74601 Opava (Czech Republic) [Institute of Physics, Faculty of Philosophy and Science, Silesian University in Opava, Bezru?ovo nm.13, CZ-74601 Opava (Czech Republic); Department of Mathematics and Geosciences, University of Trieste, Via Valerio 12, 34127 Trieste (Italy)

2014-05-15T23:59:59.000Z

311

Ion flux enhancements and oscillations in spatially confined laser produced aluminum plasmas  

SciTech Connect

Ion signals from laser produced plasmas (LPPs) generated inside aluminum rectangular cavities at a fixed depth d?=?2?mm and varying width, x?=?1.0, 1.6, and 2.75?mm were obtained by spatially varying the position of a negatively biased Langmuir probe. Damped oscillatory features superimposed on Maxwellian distributed ion signals were observed. Depending on the distance of the probe from the target surface, three to twelve fold enhancements in peak ion density were observed via confinement of the LPP, generated within rectangular cavities of varying width which constrained the plasma plume to near one dimensional expansion in the vertical plane. The effects of lateral spatial confinement on the expansion velocity of the LPP plume front, the temperature, density and expansion velocity of ions, enhancement of ion flux, and ion energy distribution were recorded. The periodic behavior of ion signals was analyzed and found to be related to the electron plasma frequency and electron-ion collision frequency. The effects of confinement and enhancement of various ion parameters and expansion velocities of the LPP ion plume are explained on the basis of shock wave theory.

Singh, S. C., E-mail: subhash.laserlab@gmail.com; Fallon, C.; Hayden, P.; Yeates, P.; Costello, J. T. [National Centre for Plasma Science and Technology and School of Physical Sciences, Dublin City University, Dublin 9 (Ireland); Mujawar, M. [School of Physics, Trinity College, Dublin 2 (Ireland)

2014-09-15T23:59:59.000Z

312

Obtaining accurate amounts of mercury from mercury compounds via electrolytic methods  

DOE Patents (OSTI)

A process for obtaining pre-determined, accurate rate amounts of mercury. In one embodiment, predetermined, precise amounts of Hg are separated from HgO and plated onto a cathode wire. The method for doing this involves dissolving a precise amount of HgO which corresponds to a pre-determined amount of Hg desired in an electrolyte solution comprised of glacial acetic acid and H.sub.2 O. The mercuric ions are then electrolytically reduced and plated onto a cathode producing the required pre-determined quantity of Hg. In another embodiment, pre-determined, precise amounts of Hg are obtained from Hg.sub.2 Cl.sub.2. The method for doing this involves dissolving a precise amount of Hg.sub.2 Cl.sub.2 in an electrolyte solution comprised of concentrated HCl and H.sub.2 O. The mercurous ions in solution are then electrolytically reduced and plated onto a cathode wire producing the required, pre-determined quantity of Hg.

Grossman, Mark W. (Belmont, MA); George, William A. (Rockport, MA)

1987-01-01T23:59:59.000Z

313

Obtaining accurate amounts of mercury from mercury compounds via electrolytic methods  

DOE Patents (OSTI)

A process is described for obtaining pre-determined, accurate rate amounts of mercury. In one embodiment, predetermined, precise amounts of Hg are separated from HgO and plated onto a cathode wire. The method for doing this involves dissolving a precise amount of HgO which corresponds to a pre-determined amount of Hg desired in an electrolyte solution comprised of glacial acetic acid and H[sub 2]O. The mercuric ions are then electrolytically reduced and plated onto a cathode producing the required pre-determined quantity of Hg. In another embodiment, pre-determined, precise amounts of Hg are obtained from Hg[sub 2]Cl[sub 2]. The method for doing this involves dissolving a precise amount of Hg[sub 2]Cl[sub 2] in an electrolyte solution comprised of concentrated HCl and H[sub 2]O. The mercurous ions in solution are then electrolytically reduced and plated onto a cathode wire producing the required, pre-determined quantity of Hg. 1 fig.

Grossman, M.W.; George, W.A.

1987-07-07T23:59:59.000Z

314

Oc. 13, 2004Oc. 13, 2004 International Conference of Spatial CognitionInternational Conference of Spatial Cognition 2004, Frausenchiemsee, Germany2004, Frausenchiemsee, Germany  

E-Print Network (OSTI)

of Spatial Cognition 2004, Frausenchiemsee, Germany2004, Frausenchiemsee, Germany 11 Recognizing Variable & Informatics University of BremenUniversity of Bremen GermanyGermany #12;Oc. 13, 2004Oc. 13, 2004 International Conference of Spatial CognitionInternational Conference of Spatial Cognition 2004, Frausenchiemsee, Germany

Bremen, Universität

315

Spatial and Temporal Measurements of Temperature and Cell Viability in Response to Nanoparticle Mediated Photothermal Therapy  

SciTech Connect

Aim: Nanoparticle enhanced photothermal therapy is a promising alternative to tumor resection. However, quantitative measurements of cellular response to these treatments are limited. This paper introduces a Bimodal Enhanced Analysis of Spatiotemporal Temperature (BEAST) algorithm to rapidly determine the viability of cancer cells in vitro following photothermal therapy alone or in combination with nanoparticles. Materials & Methods: To illustrate the capability of the BEAST viability algorithm, single wall carbon nanohorns were added to renal cancer (RENCA) cells in vitro and time-dependent spatial temperature maps measured with an infrared camera during laser therapy were correlated with post-treatment cell viability distribution maps obtained by cell-staining fluorescent microscopy. Conclusion: The BEAST viability algorithm accurately and rapidly determined the cell viability as function of time, space, and temperature.

Whitney, Jon R [ORNL; Rodgers, Amanda [Virginia Polytechnic Institute and State University; Harvie, Erica [Virginia Polytechnic Institute and State University; Carswell, William [Virginia Polytechnic Institute and State University; Torti, Suzy [Wake Forest University, Winston-Salem; Puretzky, Alexander A [ORNL; Rouleau, Christopher M [ORNL; Geohegan, David B [ORNL; Rylander, Christopher [Virginia Polytechnic Institute and State University; Rylander, Nichole M [Virginia Polytechnic Institute and State University

2012-01-01T23:59:59.000Z

316

Active manipulation of the spatial energy distribution of laser-accelerated proton beams  

Science Journals Connector (OSTI)

The spatial energy distributions of beams of protons accelerated by ultrahigh intensity (>1019W?cm2) picosecond laser pulse interactions with thin foil targets are investigated. Using separate, low intensity (<1013W?cm2) nanosecond laser pulses, focused onto the front surface of the target foil prior to the arrival of the high intensity pulse, it is demonstrated that the proton beam profile can be actively manipulated. In particular, results obtained with an annular intensity distribution at the focus of the low intensity beam are presented, showing smooth proton beams with a sharp circular boundary at all energies, which represents a significant improvement in the beam quality compared to irradiation with the picosecond beam alone.

D. C. Carroll; P. McKenna; O. Lundh; F. Lindau; C.-G. Wahlstrm; S. Bandyopadhyay; D. Pepler; D. Neely; S. Kar; P. T. Simpson; K. Markey; M. Zepf; C. Bellei; R. G. Evans; R. Redaelli; D. Batani; M. H. Xu; Y. T. Li

2007-12-12T23:59:59.000Z

317

Analysis of the spatially distributed performance degradation of a polymer electrolyte membrane fuel cell stack  

Science Journals Connector (OSTI)

Abstract Herein we report the spatially uneven degradation of a polymer electrolyte membrane fuel cell (PEMFC) stack operated under load variation. Fifteen sub-membrane electrode assemblies (sub-MEAs) at various cell positions and various points within each cell were obtained from the original \\{MEAs\\} employed in the fuel cell stack. Polarization curves and the voltammetric charge of these \\{MEAs\\} were measured in order to correlate localized performances with the redistributed electrochemically active surface on Pt using the polarization technique and cyclic voltammetry. Several ex situ characterizations including electron probe microanalysis, environmental scanning electron microscopy, and X-ray diffraction were also performed to find evidence, supporting the inhomogeneous degradation of the fuel cell stack. Possible routes and processes for the non-uniform stack degradation during the PEMFC stack operation will also be discussed.

Min Kyung Cho; Dae-Nyung Lee; Yi-Young Kim; Jonghee Han; Hyoung-Juhn Kim; EunAe Cho; Tae-Hoon Lim; Dirk Henkensmeier; Sung Jong Yoo; Yung-Eun Sung; Sehkyu Park; Jong Hyun Jang

2014-01-01T23:59:59.000Z

318

Extinction and the spatial dynamics of biodiversity David Jablonski*  

E-Print Network (OSTI)

Extinction and the spatial dynamics of biodiversity David Jablonski* Department of Geophysical, and expansion of clades from the tropics fuels at least some recoveries, as well as biodiversity dynamics during on special consequence when attempting to evaluate the processes shaping present-day biodiversity, where

Boyce, C. Kevin

319

The spatial evaluation of neighborhood clusters of birth defects  

SciTech Connect

Spatial statistics have recently been applied in epidemiology to evaluate clusters of cancer and birth defects. Their use requires a comparison population, drawn from the population at risk for disease, that may not always be readily available. In this dissertation the plausibility of using data on all birth defects, available from birth defects registries, as a surrogate for the spatial distribution of all live births in the analysis of clusters is assessed. Three spatial statistics that have been applied in epidemiologic investigations of clusters, nearest neighbor distance, average interpoint distance, and average distance to a fixed point, were evaluated by computer simulation for their properties in a unit square, and in a zip code region. Comparison of spatial distributions of live births and birth defects was performed by drawing samples of live births and birth defects from Santa Clara County, determining the street address at birth, geocoding this address and evaluating the resultant maps using various statistical techniques. The proposed method was then demonstrated on a previously confirmed cluster of oral cleft cases. All live births for the neighborhood were geocoded, as were all birth defects. Evaluation of this cluster using the nearest neighbor and average interpoint distance statistics was performed using randomization techniques with both the live births population and the birth defect population as comparison groups. 113 refs., 36 figs., 16 tabs.

Frisch, J.D.

1990-04-16T23:59:59.000Z

320

Performance of Spatial Modulation using Measured Real-World Channels  

E-Print Network (OSTI)

of a single antenna at each time instance which transmits a given data symbol (constellation symbol), and ii­ML), which performs an exhaustive search over the whole constellation symbol and spatial symbol space the hardware complexity of the system [5]. It also offers a significant reduction in the energy needed

Hall, Christopher

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


321

A SPATIAL WEB GRAPH MODEL WITH LOCAL INFLUENCE REGIONS  

E-Print Network (OSTI)

A SPATIAL WEB GRAPH MODEL WITH LOCAL INFLUENCE REGIONS W. AIELLO, A. BONATO, C. COOPER, J. JANSSEN- served in real-world networks such as the web graph. On the other hand, experimental and heuristic network can be recognized as densely linked subgraphs, or that web pages with many common neigh- bours

Pralat, Pawel

322

Interference Analysis for Spatial Reused Cooperative Multihop Wireless Networks  

E-Print Network (OSTI)

efficiency and energy efficiency of the system, we propose a cooperative multihop communication with spatial spectral and energy efficiencies. To further increase of multiplexing gain and energy efficiency-sur-Yvette, France ECE Department, University of Houston, USA Email: bmaham@ut.ac

Paris-Sud XI, Université de

323

Accepted Manuscript Title: Infrared chemical imaging: spatial resolution evaluation  

E-Print Network (OSTI)

-La Roche A.G., Basel, Switzerland.6 (c) Multi-Dimensional Signal Processing Laboratory, Electrical Engineering Department, Baskin School7 of Engineering, University of California, 1156 High Street, Mailcode is more or less equal to22 the wavelength of the light (i.e. 2.5 to 25 m). Unfortunately, the spatial

Milanfar, Peyman

324

Towards a semantic spatial model for pedestrian indoor navigation  

Science Journals Connector (OSTI)

This paper presents a graph-based spatial model which can serve as a reference for guiding pedestrians inside buildings. We describe a systematic approach to construct the model from geometric data. In excess of the well-known topological relations, ...

Edgar-Philipp Stoffel; Bernhard Lorenz; Hans Jrgen Ohlbach

2007-11-01T23:59:59.000Z

325

The value of spatial information in MPA network design  

E-Print Network (OSTI)

of Environmental Science and Management, b Marine Science Institute, and c Institute for Computational Earth System) The science of spatial fisheries management, which combines ecology, oceanography, and economics, has matured information has the potential to change management approaches and thus has value. We develop a general

Siegel, David A.

326

Approximate inference for spatial functional data on massively parallel processors  

Science Journals Connector (OSTI)

With continually increasing data sizes, the relevance of the big n problem of classical likelihood approaches is greater than ever. The functional mixed-effects model is a well established class of models for analyzing functional data. Spatial functional ... Keywords: Functional data analysis, Functional mixed-effects model, GPU, Gaussian processes, Likelihood analysis, Operator approximations

Lars Lau Rakt; Bo Markussen

2014-04-01T23:59:59.000Z

327

Spatial Modeling of Geographic Patterns in Biodiversity and Biofuel Production  

E-Print Network (OSTI)

Spatial Modeling of Geographic Patterns in Biodiversity and Biofuel Production How can the US of biodiversity. The future of the biofuel industry will depend on public investment and trust that industry for increasing biofuel production have already come under fire because of real and perceived threats

328

RESEARCH Open Access Spatial variation of net radiation and its  

E-Print Network (OSTI)

RESEARCH Open Access Spatial variation of net radiation and its contribution to energy balance the uncertainties of carbon, water, and energy measurements and has thus hampered the urgent research of scaling up closures in grassland ecosystems Changliang Shao1,2 , Linghao Li2 , Gang Dong3 and Jiquan Chen1,2* Abstract

Chen, Jiquan

329

On the probability and spatial distribution of ocean surface currents  

E-Print Network (OSTI)

On the probability and spatial distribution of ocean surface currents Yosef Ashkenazy Solar Energy into the probability distribution of ocean currents are important for various applications such as the chance. Our results show that the distribution of ocean currents' speed can be approximated by a Weibull

Ashkenazy, Yossi "Yosef"

330

Liquid pair correlations in four spatial dimensions: Theory versus simulation  

E-Print Network (OSTI)

Using liquid integral equation theory, we calculate the pair correlations of particles that interact via a smooth repulsive pair potential in d = 4 spatial dimensions. We discuss the performance of different closures for the Ornstein-Zernike equation, by comparing the results to computer simulation data. Our results are of relevance to understand crystal and glass formation in high-dimensional systems.

M. Heinen; J. Horbach; H. Lwen

2014-11-06T23:59:59.000Z

331

Spatial and Temporal Dynamics of Salt Marsh Vegetation across Scales  

E-Print Network (OSTI)

in Denmark responding to environmental variations at large, medium, and fine scales along both spatial and temporal spectrums. At the broad scale, this research addressed the importance of wind-induced rise of the sea surface in such biogeographic changes. A...

Kim, Daehyun

2010-10-12T23:59:59.000Z

332

Covariance Tapering for Likelihood Based Estimation in Large Spatial Datasets  

E-Print Network (OSTI)

Covariance Tapering for Likelihood Based Estimation in Large Spatial Datasets Cari Kaufman, Mark the likelihood can be computationally infeasible for large datasets, requiring O(n3) calculations for a dataset and Marshall, 1984). However, evaluating the likelihood requires order n3 operations for a dataset of size n

333

Spatially Resolved Ballistic Optoelectronic Transport Measured by Quantized  

E-Print Network (OSTI)

Spatially Resolved Ballistic Optoelectronic Transport Measured by Quantized Photocurrent of the electron modes in the QPC. KEYWORDS Ballistic optoelectronic quantum transport, nanoscale electronics Q to hundreds of nanometers have been detected. We find that a ballistic optoelectronic trans- port can occur

Ludwig-Maximilians-Universität, München

334

LM tests of spatial dependence based on bootstrap critical values  

Science Journals Connector (OSTI)

Abstract To test the existence of spatial dependence in an econometric model, a convenient test is the Lagrange Multiplier (LM) test. However, evidence shows that, in finite samples, the LM test referring to asymptotic critical values may suffer from the problems of size distortion and low power, which become worse with a denser spatial weight matrix. In this paper, residual-based bootstrap methods are introduced for asymptotically refined approximations to the finite sample critical values of the LM statistics. Conditions for their validity are clearly laid out and formal justifications are given in general, and in detail under several popular spatial LM tests using Edgeworth expansions. Monte Carlo results show that when the conditions are not fully met, bootstrap may lead to unstable critical values that change significantly with the alternative, whereas when all conditions are met, bootstrap critical values are very stable, approximate much better the finite sample critical values than those based on asymptotics, and lead to significantly improved size and power. The methods are further demonstrated using more general spatial LM tests, in connection with local misspecification and unknown heteroskedasticity.

Zhenlin Yang

2015-01-01T23:59:59.000Z

335

Model Based Spatial Data Mining for Power Markets Jiangzhuo Chen  

E-Print Network (OSTI)

of load serving substations. We use peak power demand data from FERC and a de- tailed synthetic populationModel Based Spatial Data Mining for Power Markets Jiangzhuo Chen V.S. Anil Kumar Achla Marathe Karla Atkins 1 Introduction In this paper, we use model-driven data mining tech- niques to address

Bailey-Kellogg, Chris

336

Travelling waves and spatial hierarchies in measles epidemics  

E-Print Network (OSTI)

Travelling waves and spatial hierarchies in measles epidemics B. T. Grenfell*, O. N. Bjùrnstad ............................................................................................................................................................................................................................................................................ Spatio-temporal travelling waves are striking manifestations of predator±prey and host±parasite dynamics. However, few systems are well enough documented both to detect repeated waves and to explain

337

A Spatial Computing Architecture for Implementing Computational Circuits  

E-Print Network (OSTI)

A Spatial Computing Architecture for Implementing Computational Circuits David Grant and Guy G. F an architecture and tool flow for rapidly compiling and simulating/executing computational circuits. We use tool could quickly map a computational circuit onto the architecture. Field Programmable Gate Arrays

Lemieux, Guy

338

Fish can encode order in their spatial map  

Science Journals Connector (OSTI)

22 October 2004 research-article Fish can encode order in their spatial map T...perceptual range. The blind Mexican cave fish, Astyanax fasciatus, depends on detecting...environment, it is not known how this fish links places (or the area over which the...

T. B. de Perera

2004-01-01T23:59:59.000Z

339

Opportunities to Develop an Interagency Spatial Hierarchy for ESD Applications  

E-Print Network (OSTI)

are interrelated. Find a certain type of soil and a certain type of plant and you will find a certain type of rock and processes occurring across larger areas affect and often override those of smaller ecosystems. Moreover, environmental gradients affecting ecological patterns and processes change at different spatial

340

Spatiality of the patch frame Mart n H. Escard o  

E-Print Network (OSTI)

Spatiality of the patch frame Mart#19;#16;n H. Escard#19;o School of Mathematical and Computational is referred to as the patch frame. In this short note we show that the patch of a topology is isomorphic to a #12;ner topology on the same set. We also give a point-set construction of the patch topology

Escardó, Martín

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


341

Transformation of spatial and perturbation derivatives of travel time  

E-Print Network (OSTI)

Transformation of spatial and perturbation derivatives of travel time at a general interface and perturbation parameters. We derive the explicit equations for transforming these travel­time derivatives Hamiltonian function and are applicable to the transformation of travel­time derivatives in both isotropic

Cerveny, Vlastislav

342

Design of spatial experiments: Model fitting and prediction  

SciTech Connect

The main objective of the paper is to describe and develop model oriented methods and algorithms for the design of spatial experiments. Unlike many other publications in this area, the approach proposed here is essentially based on the ideas of convex design theory.

Fedorov, V.V.

1996-03-01T23:59:59.000Z

343

20 CURA REPORTER Abstract: Understanding the spatial link-  

E-Print Network (OSTI)

20 CURA REPORTER Abstract: Understanding the spatial link- ages between home and work is critical decisions. This research project explored where people live and work in Minnesota to determine whether workers in different earnings groups exhibit similar patterns in "work- force flows" across county lines

Levinson, David M.

344

Spatial Literacy, Geographical Information Technologies, and Solutions to Societal Problems  

E-Print Network (OSTI)

, building with Lego or daydreaming." National Research Council report Learning to Think Spatially, 2006 #12 ­ Geographic information systems (GIS) ­ Global positioning systems (GPS) ­ Satellite remote sensing Office of Emergency Management and NY Office of Cyber Security and Critical Infrastructure Coordination

Fabrikant, Sara Irina

345

Policy Issues Affecting Spatial Data Infrastructure Developments in the Netherlands  

E-Print Network (OSTI)

Policy Issues Affecting Spatial Data Infrastructure Developments in the Netherlands Professor Bas C of Technology, the Netherlands Bas_Kok@euronet.nl Bastiaan van Loenen, PhD candidate department of civil engineering and geo-sciences, geodetic engineering Delft University of Technology, the Netherlands b

Onsrud, Harlan J.

346

Memory for events and their spatial context: models and experiments  

E-Print Network (OSTI)

Memory for events and their spatial context: models and experiments Neil Burgess1,2* , Suzanna Main Street West, Hamilton, Ontario L8S 4K1, Canada The computational role of the hippocampus in memory-limited store supporting neocortical long-term memory; and (iii) a content-addressable associative memory

Haykin, Simon

347

An Object-Based Audio Rendering System using Spatial Parameters  

E-Print Network (OSTI)

An Object-Based Audio Rendering System using Spatial Parameters Kuo-Lun Huang, Tai-Ming Chang, and Pao-Chi Chang Department of Communication Engineering National Central University Jhongli, Taiwan {klhuang, tmchang, pcchang}@vaplab.ce.ncu.edu.tw Abstract--In this paper, we propose an object-based audio

Chang, Pao-Chi

348

Climatic extremes improve predictions of spatial patterns of tree species  

E-Print Network (OSTI)

Climatic extremes improve predictions of spatial patterns of tree species Niklaus E. Zimmermanna,1 of climate extremes suggests the importance of understanding their additional influence on range limits. Here, we assess how measures representing climate extremes (i.e., interannual variability in climate

Zimmermann, Niklaus E.

349

Lab obtains approval to begin design on new radioactive waste staging  

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

New radioactive waste staging facility New radioactive waste staging facility Lab obtains approval to begin design on new radioactive waste staging facility The 4-acre complex will include multiple staging buildings plus an operations center and a concrete pad for mobile waste characterization equipment. September 1, 2010 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy

350

E(5) and X(5) critical point symmetries obtained from Davidson potentialsthrough a variational procedure  

Science Journals Connector (OSTI)

Davidson potentials of the form ?2+?04??2, when used in the E(5) framework bridge the U(5) and O(6) symmetries, while they bridge the U(5) and SU(3) symmetries when used in the X(5) framework. Using a variational procedure, we determine for each value of angular momentum L the value of ?0 at which the rate of change of various physical quantities [energy ratios, intraband B(E2) ratios, quadrupole moment ratios] has a maximum, the collection of the values of the physical quantity formed in this way being a candidate for describing its behavior at the relevant critical point. Energy ratios lead to the E(5) and X(5) results, while intraband B(E2) ratios and quadrupole moments lead to the E(5)-?4 and X(5)-?4 models. A new derivation of the Holmberg-Lipas formula for nuclear energy spectra is obtained as a by-product.

Dennis Bonatsos; D. Lenis; N. Minkov; D. Petrellis; P. P. Raychev; P. A. Terziev

2004-08-16T23:59:59.000Z

351

An Ad-Hoc Method for Obtaining chi**2 Values from Unbinned Maximum Likelihood Fits  

E-Print Network (OSTI)

A common goal in an experimental physics analysis is to extract information from a reaction with multi-dimensional kinematics. The preferred method for such a task is typically the unbinned maximum likelihood method. In fits using this method, the likelihood is a goodness-of-fit quantity in that it effectively discriminates between available hypotheses; however, it does not provide any information as to how well the best hypothesis describes the data. In this paper, we present an {\\em ad-hoc} procedure for obtaining chi**2/n.d.f. values from unbinned maximum likelihood fits. This method does not require binning the data, making it very applicable to multi-dimensional problems.

M. Williams; C. A. Meyer

2008-06-30T23:59:59.000Z

352

Process and apparatus for obtaining samples of liquid and gas from soil  

DOE Patents (OSTI)

An apparatus and process for obtaining samples of liquid and gas from subsurface soil is provided having filter zone adjacent an external expander ring. The expander ring creates a void within the soil substrate which encourages the accumulation of soil-borne fluids. The fluids migrate along a pressure gradient through a plurality of filters before entering a first chamber. A one-way valve regulates the flow of fluid into a second chamber in further communication with a collection tube through which samples are collected at the surface. A second one-way valve having a reverse flow provides additional communication between the chambers for the pressurized cleaning and back-flushing of the apparatus.

Rossabi, Joseph (105 Michael Ct., Aiken, SC 29801); May, Christopher P. (5002 Hesperus Dr., Columbia, MD 21044); Pemberton, Bradley E. (131 Glencarin Dr., Aiken, SC 29803); Shinn, Jim (Box 65, RFD. #1, South Royalton, VT 05068); Sprague, Keith (Box 234 Rte. 14, Brookfield, VT 05036)

1999-01-01T23:59:59.000Z

353

Quantum correlations in bulk properties of solids obtained from neutron scattering  

E-Print Network (OSTI)

We demonstrate that inelastic neutron scattering technique can be used to indirectly detect and measure the macroscopic quantum correlations quantified by both entanglement and discord in a quantum magnetic material, VODPO4 . 1D2O. The amount of quantum correlations is obtained 2 by analyzing the neutron scattering data of magnetic excitations in isolated V4+ spin dimers. Our quantitative analysis shows that the critical temperature of this material can reach as high as Tc = 82.5 K, where quantum entanglement drops to zero. Significantly, quantum discord can even survive at Tc = 300 K and may be used in room temperature quantum devices. Taking into account the spin-orbit (SO) coupling, we also predict theoretically that entanglement can be significantly enhanced and the critical temperature Tc increases with the strength of spin-orbit coupling.

Ben-Qiong Liu; Lian-Ao Wu; Guo-Mo Zeng; Jian-Ming Song; Wei Luo; Yang Lei; Guang-Ai Sun; Bo Chen; Shu-Ming Peng

2014-07-02T23:59:59.000Z

354

Impact of orthorectification and spatial sampling on maximum NDVI composite data in mountain regions  

Science Journals Connector (OSTI)

Topography and accuracy of image geometric registration significantly affect the quality of satellite data, since pixels are displaced depending on surface elevation and viewing geometry. This effect should be corrected for through the process of accurate image navigation and orthorectification in order to meet the geolocation accuracy for systematic observations specified by the Global Climate Observing System (GCOS) requirements for satellite climate data records. We investigated the impact of orthorectification on the accuracy of maximum Normalized Difference Vegetation Index (NDVI) composite data for a mountain region in north-western Canada at various spatial resolutions (1km, 4km, 5km, and 8km). Data from AVHRR on board NOAA-11 (1989 and 1990) and NOAA-16 (2001, 2002, and 2003) processed using a system called CAPS (Canadian AVHRR Processing System) for the month of August were considered. Results demonstrate the significant impact of orthorectification on the quality of composite NDVI data in mountainous terrain. Differences between orthorectified and non-orthorectified NDVI composites (?NDVI) adopted both large positive and negative values, with the 1% and 99% percentiles of ?NDVI at 1km resolution spanning values between ?0.16obtained at all spatial resolutions, ranging from 0.02 (1km) to 0.004 (8km). Analyzing the power spectra of maximum NDVI composites at 1km resolution, large differences between orthorectified and non-orthorectified AVHRR data were identified at spatial scales between 4km and 10km. Validation of NOAA-16 AVHRR NDVI with MODIS NDVI composites revealed higher correlation coefficients (by up to 0.1) for orthorectified composites relative to the non-orthorectified case. Uncertainties due to the AVHRR Global Area Coverage (GAC) sampling scheme introduce an average positive bias of 0.020.03 at maximum NDVI composite level that translates into an average relative bias of 10.6%19.1 for sparsely vegetated mountain regions. This can at least partially explain the systematic average positive biases we observed relative to our results in AVHRR GAC-based composites from the Global Inventory Modeling and Mapping Studies (GIMMS) and Polar Pathfinder (PPF) datasets (0.19 and 0.05, respectively). With regard to the generation of AVHRR long-term climate data records, results suggest that orthorectification should be an integral part of AVHRR pre-processing, since neglecting the terrain displacement effect may lead to important biases and additional noise in time series at various spatial scales.

Fabio M.A. Fontana; Alexander P. Trishchenko; Konstantin V. Khlopenkov; Yi Luo; Stefan Wunderle

2009-01-01T23:59:59.000Z

355

Composition and microstructure of zirconium and hafnium germanates obtained by different chemical routes  

SciTech Connect

The phase composition and morphology of zirconium and hafnium germanates synthesized by ceramic and co-precipitation routes were studied. The products were characterized using high-temperature X-ray diffraction analysis (XRD), Raman spectroscopy, scanning electron microscopy (SEM) and thermal (TG/DTA) analysis. To investigate the phase composition and stoichiometry of compounds the unit cell parameters were refined by full-profile Rietveld XRD analysis. The morphology of products and its evolution during high-temperature treatment was examined by SEM analysis. It was stated that there is the strong dependence of the phase composition and morphology of products on the preparation route. The ceramic route requires a multi-stage high-temperature treatment to obtain zirconium and hafnium germanates of 95% purity or more. Also, there are strong diffusion limitations to obtain hafnium germanate Hf{sub 3}GeO{sub 8} by ceramic route. On the contrary, the co-precipitation route leads to the formation of nanocrystalline single phase germanates of stoichiometric composition at a relatively low temperatures (less than 1000 C). The results of quantitative XRD analysis showed the hafnium germanates are stoichiometric compounds in contrast to zirconium germanates that form a set of solid solutions. This distinction may be related to the difference in the ion radii of Zr and Hf. - Graphical abstract: The phase composition and morphology of zirconium and hafnium germanates synthesized by ceramic and co-precipitation routes were studied. It was stated that there is the strong dependence of the phase composition and morphology of products on the preparation route. Display Omitted - Highlights: Zr and Hf germanates were synthesized by ceramic and co-precipitation routes. The morphology of products depends on the synthesis parameters. Zirconium germanates forms a set of solid solutions. Hafnium germanates are stoichiometric compounds.

Utkin, A.V., E-mail: utkinalex@hotmail.com; Prokip, V.E.; Baklanova, N.I.

2014-01-15T23:59:59.000Z

356

Near-resonant spatial images of confined Bose-Einstein condensates in a 4-Dee magnetic bottle  

Science Journals Connector (OSTI)

We present quantitative measurements of the spatial density profile of Bose-Einstein condensates of sodium atoms confined in a 4-Dee magnetic bottle. The condensates are imaged in transmission with near-resonant laser light. We demonstrate that the Thomas-Fermi surface of a condensate can be determined to better than 1%. More generally, we obtain excellent agreement with mean-field theory. We conclude that precision measurements of atomic scattering lengths and interactions between phase-separated cold atoms in a harmonic trap can be performed with high precision using this method.

Lene Vestergaard Hau; B. D. Busch; Chien Liu; Zachary Dutton; Michael M. Burns; J. A. Golovchenko

1998-07-01T23:59:59.000Z

357

Basic properties of the mixed oxides obtained by thermal decomposition of hydrotalcites containing different metallic compositions  

SciTech Connect

Carbonated layered double hydroxides (LDHs) containing Al, Fe, or Cr in a Mg(OH){sub 2} matrix or Al dissolved in hydroxides of Mg, Cu, Ni, Co, or Zn are used as precursors of basic catalysts. Decarbonation is studied by thermal analysis. The average basic strength, evaluated by the decarbonation temperature, is related to the partial charge of oxygen in the LDHs obtained from the Sanderson theory of electronegativity. The enthalpy of adsorption of CO{sub 2} on the resulting mixed oxides is measured by calorimetry. A homogeneous surface is generally observed for CO{sub 2} adsorption, with initial heats of adsorption close to those reported for MgO. The number of sites determined by this method is proportional to the rate constants for {beta}-isophorone isomerization, suggesting that both techniques measure surface properties. The layered structure in which OH{sup {minus}} is the compensating anion can be re-formed by hydration. This process does not appreciably change the adsorption of CO{sub 2}; thus, oxygens and hydroxyls show similar basic strengths in this case.

Valente, J.S.; Figueras, F.; Gravelle, M.; Kumbhar, P.; Lopez, J.; Besse, J.P.

2000-01-25T23:59:59.000Z

358

The component groups structure of DPPC bilayers obtained by specular neutron reflectometry  

E-Print Network (OSTI)

Specular neutron reflectometry (SNR) was measured on a system of a floating bilayer consisting of 1,2-dipalmitoyl-d62-\\textit{sn}-glycero-3-phosphocholine (d62-diC16:0PC) deposited over a 1,2-dibehenoyl-\\textit{sn}-glycero-3-phosphocholine (diC22:0PC) bilayer at 25 and 55 {\\deg}C. The internal structure of lipid bilayers was described by a one dimensional scattering length density profile (SLDP) model, originally developed for the evaluation of small angle scattering data. The corresponding model reflectivity curves successfully describe the experimental reflectivity curves of a supported bilayer in the gel phase and a system of a floating bilayer in the liquid crystalline phase. The reflectivity data from the supported bilayer were evaluated individually and served further as an input by the data treatment of floating bilayer reflectivity curves. The results yield internal structure of a deposited and floating bilayer on the level of component groups of lipid molecules. The obtained structure of the floating d62-diC16:0PC bilayer displays high resemblance to the bilayer structure in the form of unilamellar vesicles, however, simultaneously it shows rate of fluctuations in comparison to unilamellar vesicle bilayers.

Michal Beli?ka; Yuri Gerelli; Norbert Ku?erka; Giovanna Fragneto

2014-12-16T23:59:59.000Z

359

Mssbauer spectroscopy studies of carbon-encapsulated magnetic nanoparticles obtained by different routes  

Science Journals Connector (OSTI)

Carbon-encapsulated magnetic nanoparticles (CEMNPs) are nanomaterials with a core-shell structure. Their intrinsic properties result both from the unique nature of the encapsulated magnetic phases and the high chemical stability of the external carbon shells. CEMNPs may find many prospective applications e.g. in magnetic data storage catalysis xerography magnetic resonance imaging and in biomedical applications. Herein we present detailed structural studies of such nanostructures by Mssbauer spectroscopy x-ray diffraction(XRD) scanning electron microscopy and transmission electron microscopy. CEMNPs have been obtained by three different techniques: carbon arc combustion synthesis and radio frequency thermal plasma. The evaluation of the phase composition of the products was strongly limited due to the broadening and overlapping of the lines in XRDdiffraction patterns. The presence of the semicrystalline phases which could not been identified by XRD was established by Mssbauer spectroscopy. Furthermore the magnetic core phase composition was evaluated quantitatively. The products were purified before structural analyses to remove the nonencapsulated particles. The purification caused significant changes in the mass and the saturation magnetization. The Mssbauer spectra of the purified products were compared with the literature data concerning the as-produced CEMNPs.

M. Bystrzejewski; A. Grabias; J. Borysiuk; A. Huczko; H. Lange

2008-01-01T23:59:59.000Z

360

The role of reverberation in release from masking due to spatial separation of sources in speech recognition  

Science Journals Connector (OSTI)

Arbogast et al. [ARO Mtg. (2002)] found a large release from masking obtained by spatial separation of a target talker and competing speech masker. Both stimuli were sentences from the Coordinate Response Measure corpus [Bolia et al. J. Acoust. Soc. Am. (2000)] processed by extracting the envelopes of 15 narrow frequency bands and using the envelopes to modulate carrier tones at the center of each band. By playing nonoverlapping subsets (68) of bands from signal and masker they minimized the energetic component while maximizing the informational component of masking. This study extends that work to determine the interaction between reverberation masker type and spatial release from masking. Stimuli were processed and presented as above. The target sentence was played at 0?deg azimuth while the masker sentence was played at 0 or 90?deg azimuth. Noisemasker controls were also tested. The listening environment was an IAC booth having dimensions of 12 ft13 ft. Acoustic extremes were achieved using PlexiglasTM (highly reflective) or foam (highly absorptive). The results indicated that the amount of masking and the spatial release from masking depend both on the characteristics of the room and masker type. Discussion will center on the acoustic and perceptual factors affecting performance. [Work supported by NIH/NIDCD.

2002-01-01T23:59:59.000Z

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361

Numerical analysis of liquid-solids suspension velocities and concentrations obtained by NMR imaging.  

SciTech Connect

Analyses of some of the steady-state, fully developed, and isothermal carrier fluid velocity and solids concentration data of Altobelli et al. and Sinton and Chow obtained using three-dimensional time-of-flight nuclear magnetic (NMR) imaging techniques are presented. NMR imaging offers powerful techniques to nonintrusively determine three-dimensional time-dependent velocity and concentration fields to assist development and validation of the constitutive models and the computer programs describing concentrated suspensions. These experiments were carefully performed and probably represent the best available open literature data of their kind. COMMIX-M, a three-dimensional transient and steady-state computer program written in Cartesian and cylindrical coordinates, has been used to analyze the NMR data. This computer program is capable of analyzing multiphase flow and heat transfer and utilizes the separate phases model wherein each phase has its own mass, momentum, and energy equations. COMMIX-M contains constitutive relationships for interfacial drag, solids viscosities and stresses to describe the solids rheology, and virtual mass and shear lift forces extended to a continuum from the single particle literature. Also included is a solids partial-slip boundary condition to allow nonzero tangential velocity at the tube walls. This computer program is being developed at Argonne National Laboratory for application to test various interphase interaction models and to predict design and processing of dense fluid-solids suspension systems. Comparisons of computed and measured concentration and velocity profiles provide some insights into the mechanisms governing the observed phenomena. Recommendations for model improvement are given. To the authors knowledge, these are the first such comparisons of theory and experiment

Ding, J.; Lyczkowski, R. W.; Sha, W. T.; Altobelli, S. A.; Fukushima, E.; Lovelace Medical Foundation

1993-01-01T23:59:59.000Z

362

Analysis of liquid-solids suspension velocities and concentrations obtained by NMR imaging  

SciTech Connect

COMMIX-M, a three-dimensional transient and steady-state computer program written in Cartesian and cylindrical coordinates, has been developed by Argonne National Laboratory. This computer program is capable of analyzing multiphase flow and heat transfer and utilizes the separate phases model wherein each phase has its own mass, momentum, and energy equations. This computer program is in its early stages of development for application to test various interphase interaction models and to predict design and processing of dense fluid-solids suspension systems. COMMIX-M contains preliminary constitutive relationships for interfacial drag, solids viscosities and stresses to describe the solids rheology, and shear lift forces from the literature. Also included is a solids partial slip boundary condition to allow non-zero tangential velocity at the tube walls. Analyses of some of the steady-state, fully-developed isothermal carrier fluid velocity and solids concentration data of Altobelli et al. and Sinton and Chow are presented. These experimental data obtained using three-dimensional time-of-flight nuclear magnetic (NMR) imaging techniques were carefully performed and represent some of the best available open literature data of their kind. NMR imaging offers powerful techniques to non-intrusively determine three-dimensional time-dependent velocity and concentration fields to assist development and validation of the constitutive models and the computer programs describing concentrated suspensions. Analyses of these NMR data, together with comparisons of computed and measured concentration and velocity profiles provide some insights into the mechanisms governing the observed phenomena. Recommendations for future research are given. To the authors` knowledge, these are the first such comparisons of theory and experiment.

Ding, J.; Lyczkowski, R.W.; Sha, W.T. [Argonne National Lab., IL (United States); Altobelli, S.A.; Fukushima, E. [Lovelace Medical Foundation, Albuquerque, NM (United States)

1992-09-01T23:59:59.000Z

363

Analysis of liquid-solids suspension velocities and concentrations obtained by NMR imaging  

SciTech Connect

COMMIX-M, a three-dimensional transient and steady-state computer program written in Cartesian and cylindrical coordinates, has been developed by Argonne National Laboratory. This computer program is capable of analyzing multiphase flow and heat transfer and utilizes the separate phases model wherein each phase has its own mass, momentum, and energy equations. This computer program is in its early stages of development for application to test various interphase interaction models and to predict design and processing of dense fluid-solids suspension systems. COMMIX-M contains preliminary constitutive relationships for interfacial drag, solids viscosities and stresses to describe the solids rheology, and shear lift forces from the literature. Also included is a solids partial slip boundary condition to allow non-zero tangential velocity at the tube walls. Analyses of some of the steady-state, fully-developed isothermal carrier fluid velocity and solids concentration data of Altobelli et al. and Sinton and Chow are presented. These experimental data obtained using three-dimensional time-of-flight nuclear magnetic (NMR) imaging techniques were carefully performed and represent some of the best available open literature data of their kind. NMR imaging offers powerful techniques to non-intrusively determine three-dimensional time-dependent velocity and concentration fields to assist development and validation of the constitutive models and the computer programs describing concentrated suspensions. Analyses of these NMR data, together with comparisons of computed and measured concentration and velocity profiles provide some insights into the mechanisms governing the observed phenomena. Recommendations for future research are given. To the authors' knowledge, these are the first such comparisons of theory and experiment.

Ding, J.; Lyczkowski, R.W.; Sha, W.T. (Argonne National Lab., IL (United States)); Altobelli, S.A.; Fukushima, E. (Lovelace Medical Foundation, Albuquerque, NM (United States))

1992-09-01T23:59:59.000Z

364

Development of a general method for obtaining the geometry of microfluidic networks  

SciTech Connect

In the present study, a general method for geometry of fluidic networks is developed with emphasis on pressure-driven flows in the microfluidic applications. The design method is based on general features of network's geometry such as cross-sectional area and length of channels. Also, the method is applicable to various cross-sectional shapes such as circular, rectangular, triangular, and trapezoidal cross sections. Using constructal theory, the flow resistance, energy loss and performance of the network are optimized. Also, by this method, practical design strategies for the fabrication of microfluidic networks can be improved. The design method enables rapid prediction of fluid flow in the complex network of channels and is very useful for improving proper miniaturization and integration of microfluidic networks. Minimization of flow resistance of the network of channels leads to universal constants for consecutive cross-sectional areas and lengths. For a Y-shaped network, the optimal ratios of consecutive cross-section areas (A{sub i+1}/A{sub i}) and lengths (L{sub i+1}/L{sub i}) are obtained as A{sub i+1}/A{sub i} = 2{sup ?2/3} and L{sub i+1}/L{sub i} = 2{sup ?1/3}, respectively. It is shown that energy loss in the network is proportional to the volume of network. It is also seen when the number of channels is increased both the hydraulic resistance and the volume occupied by the network are increased in a similar manner. Furthermore, the method offers that fabrication of multi-depth and multi-width microchannels should be considered as an integral part of designing procedures. Finally, numerical simulations for the fluid flow in the network have been performed and results show very good agreement with analytic results.

Razavi, Mohammad Sayed, E-mail: m.sayedrazavi@gmail.com; Salimpour, M. R. [Department of Mechanical Engineering, Isfahan University of Technology, Isfahan 84156-83111 (Iran, Islamic Republic of)] [Department of Mechanical Engineering, Isfahan University of Technology, Isfahan 84156-83111 (Iran, Islamic Republic of); Shirani, Ebrahim [Department of Engineering, Foolad Institute of Technology, FooladShahr 84916-63763, Isfahan (Iran, Islamic Republic of)] [Department of Engineering, Foolad Institute of Technology, FooladShahr 84916-63763, Isfahan (Iran, Islamic Republic of)

2014-01-15T23:59:59.000Z

365

High Spatial Resolution Observations of Loops in the Solar Corona  

E-Print Network (OSTI)

Understanding how the solar corona is structured is of fundamental importance to determining how the Sun's upper atmosphere is heated to high temperatures. Recent spectroscopic studies have suggested that an instrument with a spatial resolution of 200km or better is necessary to resolve coronal loops. The High Resolution Coronal Imager (Hi-C) achieved this performance on a rocket flight in July 2012. We use Hi-C data to measure the Gaussian widths of 91 loops observed in the solar corona and find a distribution that peaks at about 270km. We also use Atmospheric Imaging Assembly (AIA) data for a subset of 79 of these loops and find that their temperature distributions are narrow. These observations provide further evidence that loops in the solar corona are structured at a scale of several hundred kilometers, well above the spatial scale of proposed physical mechanisms.

Brooks, David H; Ugarte-Urra, Ignacio; Winebarger, Amy R

2013-01-01T23:59:59.000Z

366

Spatial-temporal event detection in climate parameter imagery.  

SciTech Connect

Previously developed techniques that comprise statistical parametric mapping, with applications focused on human brain imaging, are examined and tested here for new applications in anomaly detection within remotely-sensed imagery. Two approaches to analysis are developed: online, regression-based anomaly detection and conditional differences. These approaches are applied to two example spatial-temporal data sets: data simulated with a Gaussian field deformation approach and weekly NDVI images derived from global satellite coverage. Results indicate that anomalies can be identified in spatial temporal data with the regression-based approach. Additionally, la Nina and el Nino climatic conditions are used as different stimuli applied to the earth and this comparison shows that el Nino conditions lead to significant decreases in NDVI in both the Amazon Basin and in Southern India.

McKenna, Sean Andrew; Gutierrez, Karen A.

2011-10-01T23:59:59.000Z

367

HIGH SPATIAL RESOLUTION OBSERVATIONS OF LOOPS IN THE SOLAR CORONA  

SciTech Connect

Understanding how the solar corona is structured is of fundamental importance to determine how the Sun's upper atmosphere is heated to high temperatures. Recent spectroscopic studies have suggested that an instrument with a spatial resolution of 200 km or better is necessary to resolve coronal loops. The High Resolution Coronal Imager (Hi-C) achieved this performance on a rocket flight in 2012 July. We use Hi-C data to measure the Gaussian widths of 91 loops observed in the solar corona and find a distribution that peaks at about 270 km. We also use Atmospheric Imaging Assembly data for a subset of these loops and find temperature distributions that are generally very narrow. These observations provide further evidence that loops in the solar corona are often structured at a scale of several hundred kilometers, well above the spatial scale of many proposed physical mechanisms.

Brooks, David H.; Ugarte-Urra, Ignacio [College of Science, George Mason University, 4400 University Drive, Fairfax, VA 22030 (United States); Warren, Harry P. [Space Science Division, Naval Research Laboratory, Washington, DC 20375 (United States); Winebarger, Amy R. [NASA Marshall Space Flight Center, ZP 13, Huntsville, AL 35812 (United States)

2013-08-01T23:59:59.000Z

368

Improved Spatial Resolution for Reflection Mode Infrared Microscopy  

SciTech Connect

Standard commercial infrared microscopes operating in reflection mode use a mirror to direct the reflected light from the sample to the detector. This mirror blocks about half of the incident light, however, and thus degrades the spatial resolution by reducing the umerical aperture of the objective. Here, we replace the mirror with a 50% beamsplitter to allow full illumination of the objective and retain a way to direct the reflected light to the detector. The improved spatial resolution is demonstrated using two different microscopes apable of diffraction-limited resolution: the first microscope is coupled to a synchrotron source and utilizes a single point detector, whereas the second microscope has a standard blackbody source and uses a focal planetarray (FPA) detector.

Bechtel, Hans A.; Martin, Michael C.; May, T.E.; Lerch, Philippe

2009-10-09T23:59:59.000Z

369

Bound States and Scattering Resonances Induced by Spatially Modulated Interactions  

Science Journals Connector (OSTI)

We study the two-body problem with a spatially modulated interaction potential using a two-channel model, in which the interchannel coupling is provided by an optical standing wave and its strength modulates periodically in space. As the modulation amplitudes increase, there will appear a sequence of bound states. Part of them will cause a divergence of the effective scattering length, defined through the phase shift in the asymptotic behavior of scattering states. We also discuss how the local scattering length, defined through short-range behavior of scattering states, modulates spatially in different regimes. These results provide a theoretical guideline for a new control technique in the cold atom toolbox, in particular, for alkaline-earth(-like) atoms where the inelastic loss is small.

Ran Qi and Hui Zhai

2011-04-20T23:59:59.000Z

370

COBE Data Spatial--Frequency Analysis and CMB Anisotropy Spectrum  

E-Print Network (OSTI)

We discuss the problem of CMB spectrum corruption during Galactic emission removing. A new technique of spatial--frequency data reduction is proposed. The technique gives us a possibility to avoid a spatial harmonics nonorthogonality. The proposed technique is applied to the two-year COBE DMR sky maps. We exclude the harmonics with l=7, 9,13, 23 and 25 as having anomalous statistics noise behavior. One shows that procedure do not give systematic errors, if the data are statistically regular. The spectral parameter of the power spectrum of primordial perturbation $n=1.84 \\pm 0.29$ and quadrupole moment $Q_2=15.22 \\pm 3.0$ are estimated. The power spectrum estimation results are inconsistent with the Harrison-Zel`dovich $n=1$ model with the confidence 99%. It is shown a necessity of an increasing a survey sensitivity to reach a more reliable estimation of the cosmological signal.

A. A. Brukhanov; D. P. Skulachev; I. A. Strukov; T. V. Konkina

1995-12-22T23:59:59.000Z

371

Collective oscillations in spatially modulated exciton-polariton condensate arrays  

E-Print Network (OSTI)

We study collective dynamics of interacting centers of exciton-polariton condensation in presence of spatial inhomogeneity, as modeled by diatomic active oscillator lattices. The mode formalism is developed and employed to derive existence and stability criteria of plane wave solutions. It is demonstrated that $k_0=0$ wave number mode with the binary elementary cell on a diatomic lattice possesses superior existence and stability properties. Decreasing net on-site losses (balance of dissipation and pumping) or conservative nonlinearity favors multistability of modes, while increasing frequency mismatch between adjacent oscillators detriments it. On the other hand, spatial inhomogeneity may recover stability of modes at high nonlinearities. Entering the region where all single-mode solutions are unstable we discover subsequent transitions between localized quasiperiodic, chaotic and global chaotic dynamics in the mode space, as nonlinearity increases. Importantly, the last transition evokes the loss of synchronization. These effects may determine lasing dynamics of interacting exciton-polariton condensation centers.

A. A. Tikhomirov; O. I. Kanakov; B. L. Altshuler; M. V. Ivanchenko

2014-07-25T23:59:59.000Z

372

Correlating Spatial Heterogeneities in Porosity and Permeability with Metal  

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

Correlating Spatial Heterogeneities in Porosity and Permeability with Metal Correlating Spatial Heterogeneities in Porosity and Permeability with Metal Poisoning within an Individual Catalyst Particle using X-ray Microscopy Wednesday, August 21, 2013 - 1:30pm SLAC, Conference Room 137-226 Presented by Darius Morris, Stanford Synchrotron Radiation Lightsource Fluid catalytic cracking (FCC) is a refining process for converting large and/or heavy molecules of oil feedstock into smaller and lighter hydrocarbons such as gasoline. During the cracking process, metal contaminants from the oil feedstock deactivate and restrict access into the catalyst particle, thus reducing the yield of gasoline byproducts. Full-field transmission X-ray microscopy (TXM) has been used to determine the 3D composition and structure of an equilibrated (spent) FCC particle in

373

Analysis and System Design Framework for Infrared Spatial Heterodyne Spectrometers  

SciTech Connect

The authors present a preliminary analysis and design framework developed for the evaluation and optimization of infrared, Imaging Spatial Heterodyne Spectrometer (SHS) electro-optic systems. Commensurate with conventional interferometric spectrometers, SHS modeling requires an integrated analysis environment for rigorous evaluation of system error propagation due to detection process, detection noise, system motion, retrieval algorithm and calibration algorithm. The analysis tools provide for optimization of critical system parameters and components including : (1) optical aperture, f-number, and spectral transmission, (2) SHS interferometer grating and Littrow parameters, and (3) image plane requirements as well as cold shield, optical filtering, and focal-plane dimensions, pixel dimensions and quantum efficiency, (4) SHS spatial and temporal sampling parameters, and (5) retrieval and calibration algorithm issues.

Cooke, B.J.; Smith, B.W.; Laubscher, B.E.; Villeneuve, P.V.; Briles, S.D.

1999-04-05T23:59:59.000Z

374

Automated defect spatial signature analysis for semiconductor manufacturing process  

DOE Patents (OSTI)

An apparatus and method for performing automated defect spatial signature alysis on a data set representing defect coordinates and wafer processing information includes categorizing data from the data set into a plurality of high level categories, classifying the categorized data contained in each high level category into user-labeled signature events, and correlating the categorized, classified signature events to a present or incipient anomalous process condition.

Tobin, Jr., Kenneth W. (Harriman, TN); Gleason, Shaun S. (Knoxville, TN); Karnowski, Thomas P. (Knoxville, TN); Sari-Sarraf, Hamed (Knoxville, TN)

1999-01-01T23:59:59.000Z

375

Atomic Level Spatial Variations of Energy States along Graphene Edges  

Science Journals Connector (OSTI)

Atomic Level Spatial Variations of Energy States along Graphene Edges ... The local atomic bonding of carbon atoms around the edge of graphene is examined by aberration-corrected scanning transmission electron microscopy (STEM) combined with electron energy loss spectroscopy (EELS). ... We show that energy states of graphene edges vary across individual atoms along the edge according to their specific CC bonding, as well as perpendicular to the edge. ...

Jamie H. Warner; Yung-Chang Lin; Kuang He; Masanori Koshino; Kazu Suenaga

2014-10-23T23:59:59.000Z

376

Spatially indirect excitons as primary photoexcitations in conjugated polymers  

Science Journals Connector (OSTI)

We observe competition between picosecond photoinduced absorption and stimulated emission in poly(paraphenylenevinylene) which demonstrates that they derive from two different pathways. We conclude that the photoinduced absorption originates from nonemissive spatially indirect singlet excitons which are formed with quantum yield as high as 0.9. Previous arguments about maximum possible electroluminescence device efficiencies and about lasers in conjugated polymer films are reexamined in light of the prevalence of this species.

M. Yan; L. J. Rothberg; F. Papadimitrakopoulos; M. E. Galvin; T. M. Miller

1994-02-14T23:59:59.000Z

377

ON THE DIFFERENT ANALYTICAL RESULTS OBTAINED FOR THE PARALLEL DIFFUSION COEFFICIENT OF COSMIC PARTICLES WITH ADIABATIC FOCUSING  

SciTech Connect

A spatially varying mean magnetic field gives rise to so-called adiabatic focusing of energetic particles propagating through the universe. In the past, different analytical approaches have been proposed to calculate the particle diffusion coefficient along the mean field with focusing. In the present paper, we show how these different results are related to each other. New results for the parallel diffusion coefficient that are more general than previous results are also presented.

Shalchi, A.; Danos, R. J., E-mail: andreasm4@yahoo.com [Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2 (Canada)

2013-03-10T23:59:59.000Z

378

Methods for spectral image analysis by exploiting spatial simplicity  

DOE Patents (OSTI)

Several full-spectrum imaging techniques have been introduced in recent years that promise to provide rapid and comprehensive chemical characterization of complex samples. One of the remaining obstacles to adopting these techniques for routine use is the difficulty of reducing the vast quantities of raw spectral data to meaningful chemical information. Multivariate factor analysis techniques, such as Principal Component Analysis and Alternating Least Squares-based Multivariate Curve Resolution, have proven effective for extracting the essential chemical information from high dimensional spectral image data sets into a limited number of components that describe the spectral characteristics and spatial distributions of the chemical species comprising the sample. There are many cases, however, in which those constraints are not effective and where alternative approaches may provide new analytical insights. For many cases of practical importance, imaged samples are "simple" in the sense that they consist of relatively discrete chemical phases. That is, at any given location, only one or a few of the chemical species comprising the entire sample have non-zero concentrations. The methods of spectral image analysis of the present invention exploit this simplicity in the spatial domain to make the resulting factor models more realistic. Therefore, more physically accurate and interpretable spectral and abundance components can be extracted from spectral images that have spatially simple structure.

Keenan, Michael R. (Albuquerque, NM)

2010-11-23T23:59:59.000Z

379

Correlations of trace elements in breast human tissues: Evaluation of spatial distribution using {mu}-XRF  

SciTech Connect

The aim of this work is to investigate microscopic correlations between trace elements in breast human tissues. A synchrotron X-ray fluorescence microprobe system ({mu}-XRF) was used to obtain two-dimensional distribution of trace element Ca, Fe, Cu and Zn in normal (6 samples) and malignant (14 samples) breast tissues. The experiment was performed in X-ray Fluorescence beam line at Laboratorio Nacional de Luz Sincrotron (LNLS), Campinas, Brazil. The white microbeam was generated with a fine conical capillary with a 20 {mu}m output diameter. The samples were supported on a XYZ table. An optical microscope with motorized zoom was used for sample positioning and choice the area to be scanned. Automatic two-dimensional scans were programmed and performed with steps of 30 {mu}m in each direction (x, y) on the selected area. The fluorescence signals were recorded using a Si(Li) detector, positioned at 90 degrees with respect to the incident beam, with a collection time of 10 s per point. The elemental maps obtained from each sample were overlap to observe correlation between trace elements. Qualitative results showed that the pairs of elements Ca-Zn and Fe-Cu could to be correlated in malignant breast tissues. Quantitative results, achieved by Spearman correlation tests, indicate that there is a spatial correlation between these pairs of elements (p < 0.001) suggesting the importance of these elements in metabolic processes associated with the development of the tumor.

Piacenti da Silva, Marina; Silva, Deisy Mara da; Ribeiro-Silva, Alfredo; Poletti, Martin Eduardo [Departamento de Fisica, FFCLRP/USP, Av. dos Bandeirantes n. 3900, 14040-901 Ribeirao Preto - SP (Brazil); Departamento de Patologia, HCFM/USP, Av. dos Bandeirantes n. 3900, 14040-901 Ribeirao Preto - SP (Brazil); Departamento de Fisica, FFCLRP/USP, Av. dos Bandeirantes n. 3900, 14040-901 Ribeirao Preto - SP (Brazil)

2012-05-17T23:59:59.000Z

380

Stochastic modeling of slip spatial complexities for the 1979 Imperial Valley, California, earthquake  

E-Print Network (OSTI)

Stochastic modeling of slip spatial complexities for the 1979 Imperial Valley, California motion from other earthquakes statistically similar to Imperial Valley. INDEX TERMS: 3210 Mathematical. Archuleta, Stochastic modeling of slip spatial complex- ities for the 1979 Imperial Valley, California

Archuleta, Ralph

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381

Spatial distributions of the softstem bulrush,Scirpus validus, across a salinity gradient  

Science Journals Connector (OSTI)

Spatial distribution patterns ofScirpus validus were studied in tidal marshes of the lower Savannah River. The hypothesis that changes in spatial pattern forS. validus...would accompany differences in environment...

Pamela J. Latham; Leonard G. Pearlstine; Wiley M. Kitchens

1991-06-01T23:59:59.000Z

382

A Spatial Hedonic Analysis of the Effects of Wind Energy Facilities...  

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

A Spatial Hedonic Analysis of the Effects of Wind Energy Facilities on Surrounding Property Values in the United States A Spatial Hedonic Analysis of the Effects of Wind Energy...

383

DoppelLab : spatialized data sonification in a 3D virtual environment  

E-Print Network (OSTI)

This thesis explores new ways to communicate sensor data by combining spatialized sonification with data visualiation in a 3D virtual environment. A system for sonifying a space using spatialized recorded audio streams is ...

Joliat, Nicholas D. (Nicholas David)

2013-01-01T23:59:59.000Z

384

Testing Competing Precipitation Forecasts Accurately and Efficiently: The Spatial Prediction Comparison Test  

Science Journals Connector (OSTI)

Which model is best? Many challenges exist when testing competing forecast models, especially for those with high spatial resolution. Spatial correlation, double penalties, and small-scale errors are just a few such challenges. Many new methods ...

Eric Gilleland

2013-01-01T23:59:59.000Z

385

E-Print Network 3.0 - ab aur spatially Sample Search Results  

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

aur spatially Search Powered by Explorit Topic List Advanced Search Sample search results for: ab aur spatially Page: << < 1 2 3 4 5 > >> 1 Molecular Biology of the Cell Vol. 20,...

386

E-Print Network 3.0 - aur spatially resolved Sample Search Results  

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

(e.g. 16; Aur K4 Ib) and provides spatial information on the density... to constrain the wind acceleration. Spatially resolved spectra will continue to be a fruitful line of...

387

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution  

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

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print Wednesday, 31 August 2005 00:00...

388

The Sensitivity of DPF Performance to the Spatial Distribution of Ash Generated from Six Lubricant Formulations  

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

Discusses potential of DPF pressure drop reduction by optimizing the spatial distribution of ash inside DPF inlet channel

389

Psychological correlates of the UFO abduction experience : the role of beliefs and indirect suggestions on abduction accounts obtained during hypnosis.  

E-Print Network (OSTI)

??Reports of UFO abductions continue to increase in number in North America, the details of which are most commonly obtained in a quasi-therapeutic context, often (more)

Day, Duncan J.A

1998-01-01T23:59:59.000Z

390

Rangeland Ecology & Management Spatially-explicit representation of state-and-transition models  

E-Print Network (OSTI)

Rangeland Ecology & Management Spatially-explicit representation of state-and-transition models state-and-transition models (STMs) to spatial units is a valuable management tool for structuring ground Manager® from Aries Systems Corporation #12;1 Spatially-Explicit Representation of State-and-Transition

391

Discovering Homogeneous Regions in Spatial Data through Competition Slobodan Vucetic SVUCETIC@EECS.WSU.EDU  

E-Print Network (OSTI)

Discovering Homogeneous Regions in Spatial Data through Competition Slobodan Vucetic SVUCETIC for the analysis of heterogeneous spatial data is proposed. It is based on partitioning the data set into more. A number of experiments on artificial and real­life spatial data are performed to validate some as­ pects

Obradovic, Zoran

392

Modeling Disease Incidence Data with Spatial and Spatio-Temporal Dirichlet Process Mixtures  

E-Print Network (OSTI)

Modeling Disease Incidence Data with Spatial and Spatio-Temporal Dirichlet Process Mixtures approaches to analyze such data. We develop a hierarchical specification using spatial random effects modeled. Key words: Areal unit spatial data; Dirichlet process mixture models; Disease mapping; Dy- namic

Wolpert, Robert L

393

Improvement of the European Wind Atlas Method by Spatial Interpolation of Meteorological Station Data  

E-Print Network (OSTI)

Improvement of the European Wind Atlas Method by Spatial Interpolation of Meteorological Station Data Hans Georg Beyer*, Matthias Bromeis, Detlev Heinemann, Thomas Pahlke**, Hans-Peter Waldl Energy of a spatial wind energy potential. We have investigated two types of spatial interpolation techniques

Heinemann, Detlev

394

An interoperable XML encoding for the exchange of Spatial OLAP data cubes in SOA environments  

E-Print Network (OSTI)

An interoperable XML encoding for the exchange of Spatial OLAP data cubes in SOA environments addresses the exchange of complete SOLAP data cubes (comprising both spatial and descriptive data data cubes, containing both spatial and de- scriptive data and metadata. It enables the delivery

395

AN ONTOLOGY-BASED METHOD FOR QUALITY ASSESMENT OF SPATIAL DATA BASES  

E-Print Network (OSTI)

AN ONTOLOGY-BASED METHOD FOR QUALITY ASSESMENT OF SPATIAL DATA BASES Mir Abolfazl Mostafavi1 for the quality assessment of spatial data bases in both ontological and data levels. Key Words Logical consistency, quality, ontology, spatial data bases, Prolog, AI. #12;1. Introduction The widespread use

Paris-Sud XI, Université de

396

Bayesian fMRI Data Analysis with Sparse Spatial Basis Function Priors  

E-Print Network (OSTI)

Bayesian fMRI Data Analysis with Sparse Spatial Basis Function Priors Guillaume Flandin a,,1 correlation in the data. The spatial aspect of the hemodynamic response is usually taken into account indirectly, i.e. not modelled explicitly, by spatially smoothing the data with a fixed Gaussian kernel

Penny, Will

397

Spatial-temporal mesoscale modelling of rainfall intensity using gage and radar data  

E-Print Network (OSTI)

Spatial-temporal mesoscale modelling of rainfall intensity using gage and radar data Montserrat fields. Doppler radar data offer better spatial and temporal coverage, but Doppler radar measures values. We use spatial logistic regression to model the probability of rain for both sources of data

Reich, Brian J.

398

A full-scale approximation of covariance functions for large spatial data sets  

E-Print Network (OSTI)

A full-scale approximation of covariance functions for large spatial data sets Huiyan Sang in spatial statistics but face tremendous computational challenges for very large data sets. The model fitting and spatial prediction of such models typically require O(n3 ) operations for a data set of size n

Huang, Jianhua

399

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

E-Print Network (OSTI)

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

Shekhar, Shashi

400

Spatial data mining and geographic knowledge discovery--An introduction Diansheng Guo a,1  

E-Print Network (OSTI)

Spatial data mining and geographic knowledge discovery--An introduction Diansheng Guo a,1 , Jeremy methods to extract unknown and unexpected information from spatial data sets of unprecedentedly large size, high dimensionality, and complexity. To address these challenges, spatial data mining and geographic

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to obtain the most current and comprehensive results.


401

Spatial Data Interest Community Description http://inspire.jrc.it/sdic_call/index.html  

E-Print Network (OSTI)

Spatial Data Interest Community Description http://inspire.jrc.it/sdic_call/index.html Deadline: 29 April 2005 SDIC Title: Free and Open Source Software for Spatial Data Infrastructure Acronym: FOSSDI and encoding systems considering data requirements of the WFD = Water Framework Directive)] Spatial data

Neteler, Geogr. Markus - Fondazione Edmund Mach

402

Toward a socio-cognitive approach of spatial data co-production Matthieu Noucher  

E-Print Network (OSTI)

Toward a socio-cognitive approach of spatial data co-production Matthieu Noucher Docteur de l information sharing. In this context, the paper intends to understand and analyse the issues of spatial data co-production process. It provides understanding and operation elements so that spatial data sharing

Paris-Sud XI, Université de

403

ECOGRAPHY 25: 553557, 2002 Integrating the statistical analysis of spatial data in ecology  

E-Print Network (OSTI)

ECOGRAPHY 25: 553­557, 2002 Integrating the statistical analysis of spatial data in ecology A. M of spatial data in ecology. ­ Ecography 25: 553­557. In many areas of ecology there is an increasing emphasis on spatial relationships. Often ecologists are interested in new ways of analyzing data with the objective

Liebhold, Andrew

404

Exploring Dependence with Data on Spatial Mark S. Kaiser and Petruta C. Caragea  

E-Print Network (OSTI)

Exploring Dependence with Data on Spatial Lattices Mark S. Kaiser and Petrut¸a C. Caragea field models to problems involving spatial data on lattice systems requires decisions regarding a number of important aspects of model structure. Existing exploratory techniques appropriate for spatial data do

405

A Clustering-Assisted Regression (CAR) approach for developing spatial climate data sets in China  

E-Print Network (OSTI)

A Clustering-Assisted Regression (CAR) approach for developing spatial climate data sets in China t There is an increasing demand for improving spatial resolution of climate data. However, an increase in resolution does spatial data of monthly mean temperature and monthly precipitation at a national scale in mainland China

Pittendrigh, Barry

406

New Horizons for Spatial Data Quality Research Suzie Larrive, Yvan Bdard, Marc Gervais & Tania Roy  

E-Print Network (OSTI)

New Horizons for Spatial Data Quality Research Suzie Larrivée, Yvan Bédard, Marc Gervais & Tania@ulaval.ca Abstract Producing and using spatial data as well as web services has reached the level of mass formal data quality endorsments in a scenario where spatial data have become a commodity. Keywords

407

Modeling Spatially Correlated Data in Sensor Apoorva Jindal and Konstantinos Psounis  

E-Print Network (OSTI)

Modeling Spatially Correlated Data in Sensor Networks Apoorva Jindal and Konstantinos Psounis need to synthet- ically generate large traces of spatially correlated data representing a wide range of spatially correlated sensor network data. The proposed model is Markovian in nature and can capture

408

Statistical Analysis of Spatial Point Patterns on Deep Seismic Reflection Data: A Preliminary Test  

E-Print Network (OSTI)

Statistical Analysis of Spatial Point Patterns on Deep Seismic Reflection Data: A Preliminary Test analysis may provide a new tool for analysing spatial variations in reflection data. Key Words: Deep The purpose of this paper is to present spatial point pattern analyses of seismic reflection data in an effort

Schmidt, Volker

409

Hierarchical multi-view representation of spatial data; application to the analysis of Corsican Neolithic tombs.  

E-Print Network (OSTI)

Hierarchical multi-view representation of spatial data; application to the analysis of Corsican and views of spatial data for analyzing archeological data. This interdisciplinary project begins in the Corsica Island. · GIS representation of the previous data through spatial entities · Analysis

Paris-Sud XI, Université de

410

Decentralized spatial data mining for geosensor Patrick Laube and Matt Duckham  

E-Print Network (OSTI)

Decentralized spatial data mining for geosensor networks Patrick Laube and Matt Duckham Department-network knowledge discovery. This chapter introduces the notion of decentralized spatial data min- ing, where four strategies for decentralized spatial data mining, illustrating the concept of decentralization

Duckham, Matt

411

Discovering Homogeneous Regions in Spatial Data through Competition Slobodan Vucetic SVUCETIC@EECS.WSU.EDU  

E-Print Network (OSTI)

Discovering Homogeneous Regions in Spatial Data through Competition Slobodan Vucetic SVUCETIC, a supervised machine learning algorithm for the analysis of heterogeneous spatial data is proposed. It is based and accuracy is discussed. A number of experiments on artificial and real-life spatial data are performed

Vucetic, Slobodan

412

G E O M A T I C A SPATIAL DATA UNCERTAINTY  

E-Print Network (OSTI)

G E O M A T I C A SPATIAL DATA UNCERTAINTY IN THE VGI WORLD: GOING FROM CONSUMER TO PRODUCER Joel To date, spatial data quality management has predominantly consisted of documenting processes. In this paper, we argue that involving a larger group of volunteer end-users in the spatial data uncer- tainty

413

Dynamic Graphics in a GIS: Exploring and An-alyzing Multivariate Spatial Data Using Linked  

E-Print Network (OSTI)

Dynamic Graphics in a GIS: Exploring and An- alyzing Multivariate Spatial Data Using Linked of the data set. Two examples of data that are inherently spatial can be seen in the next section: one information with the ground-based sample. Spatial data analysis is largely concerned with lookingfor trends

Symanzik, Jürgen

414

Extending a Deductive ObjectOriented Database System with Spatial Data Handling Facilities  

E-Print Network (OSTI)

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

Fernandes, Alvaro A. A.

415

KEYWORDS: geospatial clustering, web service, Web GIS, spatial data mining, clustering 1 INTRODUCTION  

E-Print Network (OSTI)

1 KEYWORDS: geospatial clustering, web service, Web GIS, spatial data mining, clustering 1-poor. Unprecedented amounts of spatial data are gathered quickly and easily through various methods, such as sensorsClustering offers an API and follows the OGC standard data format for spatial data exchange. #12;2 connectivity

416

SPATIAL-TEMPORAL TECHNIQUES FOR PREDICTION AND COMPRESSION OF SOIL FERTILITY DATA  

E-Print Network (OSTI)

SPATIAL-TEMPORAL TECHNIQUES FOR PREDICTION AND COMPRESSION OF SOIL FERTILITY DATA D. Pokrajac propose several techniques for data reduction and spatial- temporal prediction in precision agriculture and applied for analysis and compression of multi-temporal precision agriculture data. The spatial

Obradovic, Zoran

417

Implementation of a Spatial Data Structure on a J. E. Rice, W. Osborn and J. Schultz  

E-Print Network (OSTI)

Implementation of a Spatial Data Structure on a FPGA J. E. Rice, W. Osborn and J. Schultz sufficient support for spatial data Many data structures are proposed that are intended specifically for spatial data; however, software implementations have not performed as well as hoped. This work presents

Seldin, Jonathan P.

418

Spectroscopic imaging from spatially-encoded single-scan multidimensional MRI data  

E-Print Network (OSTI)

Spectroscopic imaging from spatially-encoded single-scan multidimensional MRI data Assaf Tal, Lucio multidimensional magnetic resonance images within a single scan, based on a spatial encoding of the spin in its magnitude the spatial distribution of spins throughout the sample. It is hereby shown that whereas

Frydman, Lucio

419

Hierarchical models facilitate spatial analysis of large data sets: a case study on invasive plant species  

E-Print Network (OSTI)

LETTER Hierarchical models facilitate spatial analysis of large data sets: a case study on invasive issues require the analysis of large spatial point data sets ­ for example, modelling species distributions, abundance and spread from survey data. But modelling spatial relationships, especially in large

Silander Jr., John A.

420

Spatially-varying SAR models and Bayesian Inference for High-Resolution Lattice Data  

E-Print Network (OSTI)

Spatially-varying SAR models and Bayesian Inference for High-Resolution Lattice Data Chiranjit Inverse problems Lattice data Non-stationary random fields Satellite imagery data Sparse spatial model- lenge our modelling and computational abilities as data volumes increase. Similarly, as spatial scales

West, Mike

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


421

A two-stage model for incidence and prevalence in point-level spatial count data  

E-Print Network (OSTI)

A two-stage model for incidence and prevalence in point-level spatial count data Virginia Recta about the underlying data generating process. We utilize a two-stage spatial generalized linear mixed and real data from an ecological field survey. 1 Introduction Spatial count data arise frequently

Haran, Murali

422

Geotagging with Local Lexicons to Build Indexes for Textually-Specified Spatial Data  

E-Print Network (OSTI)

Geotagging with Local Lexicons to Build Indexes for Textually-Specified Spatial Data Michael D be (but is not required to be) interpreted as the names of locations. In other words, spatial data the similarity of spatial point data to conventional data as database records can be viewed as multidimensional

Samet, Hanan

423

Data Mining for Selective Visualization of Large Spatial Datasets Shashi Shekhar  

E-Print Network (OSTI)

Data Mining for Selective Visualization of Large Spatial Datasets Shashi Shekhar £ , Chang-Tien Lu exploring data for pattern and trend analysis, and it is a common method of browsing spatial datasets the summarization of spatial patterns and temporal trends. We also present data mining algorithms for filtering out

Shekhar, Shashi

424

Modeling spatially-correlated sensor network data Apoorva Jindal, Konstantinos Psounis  

E-Print Network (OSTI)

Modeling spatially-correlated sensor network data Apoorva Jindal, Konstantinos Psounis Department to synthetically generate large traces of spatially correlated data representing a wide range of conditions, it is expected that a high degree of spatial correlation will exist in the sensor network data. The presence

425

A Fast Spatial Patch Blending Algorithm for Artefact Reduction in Pattern-based Image Inpainting  

E-Print Network (OSTI)

A Fast Spatial Patch Blending Algorithm for Artefact Reduction in Pattern-based Image Inpainting Mar´echal Juin, 14050 Caen/France Figure 1: Illustration of our proposed spatial patch blending propose a fast and generic spatial patch blending technique that can be embedded within any kind

Paris-Sud XI, Université de

426

Spatially resolved characterization of biogenic manganese oxideproduction within a bacterial biofilm  

SciTech Connect

Pseudomonas putida strain MnB1, a biofilm forming bacteria, was used as a model for the study of bacterial Mn oxidation in freshwater and soil environments. The oxidation of Mn{sub (aq)}{sup +2} by P. putida was characterized by spatially and temporally resolving the oxidation state of Mn in the presence of a bacterial biofilm using scanning transmission x-ray microscopy (STXM) combined with near edge x-ray absorption fine structure (NEXAFS) spectroscopy at the Mn-L{sub 2,3} absorption edges. Subsamples were collected from growth flasks containing 0.1 mM and 1 mM total Mn at 16, 24, 36 and 48 hours after inoculation. Immediately after collection, the unprocessed hydrated subsamples were imaged at 40 nm resolution. Manganese NEXAFS spectra were extracted from x-ray energy sequences of STXM images (stacks) and fit with linear combinations of well characterized reference spectra to obtain quantitative relative abundances of Mn(II), Mn(III) and Mn(IV). Careful consideration was given to uncertainty in the normalization of the reference spectra, choice of reference compounds, and chemical changes due to radiation damage. The STXM results confirm that Mn{sub (aq)}{sup +2} was removed from solution by P. putida and was concentrated as Mn(III) and Mn(IV) immediately adjacent to the bacterial cells. The Mn precipitates were completely enveloped by bacterial biofilm material. The distribution of Mn oxidation states was spatially heterogeneous within and between the clusters of bacterial cells. Scanning transmission x-ray microscopy is a promising tool to advance the study of hydrated interfaces between minerals and bacteria, particularly in cases where the structure of bacterial biofilms needs to be maintained.

Toner, Brandy; Fakra, Sirine; Villalobos, Mario; Warwick, Tony; Sposito, Garrison

2004-10-01T23:59:59.000Z

427

MirrorImage Round Robin Spatial Data Partitioning  

E-Print Network (OSTI)

--source data to interpolate snow--water equivalent over large areas [HRA95, Car95]. These data are obtained for the competing needs of irrigation, domestic use and hydro­power are crucial. It is also imperative that the snow--water snow conditions over numerous hydrologic basins to obtain snow water equivalent estimates

Shekhar, Shashi

428

Requirements: Date of Event: ___________ You must obtain a signed burn permit from Campus Fire Safety or Public Safety.  

E-Print Network (OSTI)

to obtain a permit. Open burning must be 50 feet away from nearest field, brush, or structure. The fire pit: Open burning - bonfires, camp fires, open pits, etc. Only an approved enclosed fire pit structure canRequirements: Date of Event: ___________ You must obtain a signed burn permit from Campus Fire

Royer, Dana

429

Random?exchange Ising model with spatially correlated disorder  

Science Journals Connector (OSTI)

The pair correlation functiong(r r?) is derived in the mean?field approximation for a random?exchange Ising ferromagnet with long?range spatial correlations in the disorder. The static structure factor S(q) describing the intensity of scatteredelectromagnetic radiation or neutrons is then calculated. The inadequacy of a mean?field treatment is demonstrated and the physical aspects of renormalization are discussed. From a pedagogical perspective this problem offers a contemporary application of a number of techniques typically encountered in an advanced undergraduate or first?year graduate course in mathematical physics and can be used at that level to introduce the concept of renormalization

Erik K. Hobbie

1996-01-01T23:59:59.000Z

430

Thin film solar cell including a spatially modulated intrinsic layer  

DOE Patents (OSTI)

One or more thin film solar cells in which the intrinsic layer of substantially amorphous semiconductor alloy material thereof includes at least a first band gap portion and a narrower band gap portion. The band gap of the intrinsic layer is spatially graded through a portion of the bulk thickness, said graded portion including a region removed from the intrinsic layer-dopant layer interfaces. The band gap of the intrinsic layer is always less than the band gap of the doped layers. The gradation of the intrinsic layer is effected such that the open circuit voltage and/or the fill factor of the one or plural solar cell structure is enhanced.

Guha, Subhendu (Troy, MI); Yang, Chi-Chung (Troy, MI); Ovshinsky, Stanford R. (Bloomfield Hills, MI)

1989-03-28T23:59:59.000Z

431

Measuring dark energy spatial inhomogeneity with supernova data  

E-Print Network (OSTI)

The gravitational lensing distortion of distant sources by the large-scale distribution of matter in the Universe has been extensively studied. In contrast, very little is known about the effects due to the large-scale distribution of dark energy. We discuss the use of Type Ia supernovae as probes of the spatial inhomogeneity and anisotropy of dark energy. We show that a shallow, almost all-sky survey can limit rms dark energy fluctuations at the horizon scale down to a fractional energy density of ~10^-4

Asantha Cooray; Daniel E. Holz; Robert Caldwell

2008-12-01T23:59:59.000Z

432

Visualization of High Resolution Spatial Mass Spectrometric Data during Acquisition  

SciTech Connect

Mass Spectrometric Imaging (IMS) allows the generation of 2D ion density maps that help visualize molecules present in sections of tissues and cells. The combination of spatial and mass resolution results in large and complex data sets that require powerful and efficient analysis and interpretation. In this paper, a graphical user interface (GUI) that can visualize the large data during data acquisition itself is presented. The program also has the ability to perform processing and analysis of the dataset. The various functions of the GUI including visualization of mass spectra, generation of 2D maps for selected species, manipulation of the heat maps, and peak identification are also presented.

Thomas, Mathew; Heath, Brandi S.; Laskin, Julia; Li, Dongsheng; Liu, Ellen C.; Hui, Katrina L.; Kuprat, Andrew P.; Kleese van Dam, Kerstin; Carson, James P.

2012-08-28T23:59:59.000Z

433

Spatially dependent decoherence and anomalous diffussion of quantum walks  

E-Print Network (OSTI)

We analyze the long time behavior of a discrete time quantum walk subject to decoherence with a strong spatial dependence, acting on one half of the lattice. We show that, except for limiting cases on the decoherence parameter, the quantum walk at late times behaves sub-ballistically, meaning that the characteristic features of the quantum walk are not completely spoiled. Contrarily to expectations, the asymptotic behavior is non Markovian, and depends on the amount of decoherence. This feature can be clearly shown on the long time value of the Generalized Chiral Distribution (GCD).

A. Perez; A. Romanelli

2012-03-30T23:59:59.000Z

434

Solid phases of spatially nanoconfined oxygen: A neutron scattering study  

SciTech Connect

We present a comprehensive neutron scattering study on solid oxygen spatially confined in 12 nm wide alumina nanochannels. Elastic scattering experiments reveal a structural phase sequence known from bulk oxygen. With decreasing temperature cubic ?-, orthorhombic ?- and monoclinic ?-phases are unambiguously identified in confinement. Weak antiferromagnetic ordering is observed in the confined monoclinic ?-phase. Rocking scans reveal that oxygen nanocrystals inside the tubular channels do not form an isotropic powder. Rather, they exhibit preferred orientations depending on thermal history and the very mechanisms, which guide the structural transitions.

Kojda, Danny [Helmholtz-Zentrum Berlin fr Materialien und Energie GmbH, 14109 Berlin (Germany) [Helmholtz-Zentrum Berlin fr Materialien und Energie GmbH, 14109 Berlin (Germany); Freie Universitt Berlin, 14195 Berlin (Germany); Wallacher, Dirk; Hofmann, Tommy, E-mail: tommy.hofmann@helmholtz-berlin.de [Helmholtz-Zentrum Berlin fr Materialien und Energie GmbH, 14109 Berlin (Germany)] [Helmholtz-Zentrum Berlin fr Materialien und Energie GmbH, 14109 Berlin (Germany); Baudoin, Simon; Hansen, Thomas [Institut Laue-Langevin, BP 156, 38042 Grenoble Cedex 9 (France)] [Institut Laue-Langevin, BP 156, 38042 Grenoble Cedex 9 (France); Huber, Patrick [Technische Universitt Hamburg-Harburg, 21073 Hamburg (Germany)] [Technische Universitt Hamburg-Harburg, 21073 Hamburg (Germany)

2014-01-14T23:59:59.000Z

435

Effects of the Spatial Extent of Multiple Harmonic Layers  

SciTech Connect

An analytic model for single particle motion in the presence of a wave field and multiple cyclotron harmonics is developed and investigated. The model suggests that even in the absence of Doppler broadening, cyclotron harmonic layers have finite spatial extent. This allows for particles to interact with more than one harmonic layer simultaneously, provided the layers are tightly packed. The latter phenomenon is investigated in the context of the model using symplectic mapping techniques. Then the model behavior is compared with numerical simulations of neutral beam particle trajectories in NSTX using the full-orbit code SPIRAL.

Burby, J. W.; Kramer, G. J.; Phillips, C. K.; Valeo, E. J. [Princeton Plasma Physics Laboratory, Princeton University, Princeton, NJ 08543 (United States)

2011-12-23T23:59:59.000Z

436

Different Ways of Thinking about Street Networks and Spatial Analysis  

E-Print Network (OSTI)

Street networks, as one of the oldest infrastructures of transport in the world, play a significant role in modernization, sustainable development, and human daily activities in both ancient and modern times. Although street networks have been well studied in a variety of engineering and scientific disciplines, including for instance transport, geography, urban planning, economics, and even physics, our understanding of street networks in terms of their structure and dynamics remains limited, especially when dealing with such real-world problems as traffic jams, pollution, and human evacuations for disaster management. One goal of this special issue is to promote different ways of thinking about understanding street networks, and of conducting spatial analysis.

Jiang, Bin

2014-01-01T23:59:59.000Z

437

Modeling the effects of spatial agronomic inputs on crop yield  

E-Print Network (OSTI)

of fertilizers, if calculated on a, spatial This thesis follows the style I' or 7'rnnsactions of the ASAE. basis, could be used to minimize low yield zones, optimize crop response, and provide a degree of environmental protection (Buchholz and Wollenhaupt... (Shearer and Ilohnes, 1990). 22 Maximal Correlation Coegci ent is calculated according to fr4 = (Second largest eigenvalue of Q) (15) where ~ p(i, k)p(i, )) p*( )ps(k) The mean and range of the measures compose the 28 textural features. Although...

McCauley, James Darrell

2012-06-07T23:59:59.000Z

438

Measuring dark energy spatial inhomogeneity with supernova data  

SciTech Connect

The gravitational lensing distortion of distant sources by the matter in the Universe has been extensively studied. In contrast, very little is known about the effects due to the large-scale distribution of dark energy. We discuss the use of Type Ia supernovae as probes of the spatial inhomogeneity and anisotropy of dark energy. We show that a shallow, almost all-sky survey can limit rms dark energy fluctuations at the horizon scale down to ? 10{sup ?3} of the energy density.

Cooray, Asantha [Department of Physics and Astronomy, University of California, Irvine, CA 92697 (United States); Holz, Daniel E. [Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States); Caldwell, Robert, E-mail: acooray@uci.edu, E-mail: abc@lanl.gov, E-mail: robert.r.caldwell@dartmouth.edu [Department of Physics and Astronomy, Dartmouth College, 6127 Wilder Laboratory, Hanover, NH 03755 (United States)

2010-11-01T23:59:59.000Z

439

Single beam write and/or replay of spatial heterodyne holograms  

DOE Patents (OSTI)

A method of writing a spatially heterodyne hologram having spatially heterodyne fringes includes: passing a single write beam through a spatial light modulator that digitally modulates said single write beam; and focusing the single write beam at a focal plane of a lens to impose a holographic diffraction grating pattern on the photorefractive crystal, the holographic diffraction grating pattern including the spatially heterodyne hologram having spatially heterodyne fringes, wherein only said single write beam is incident on said photorefractive crystal without a reference beam. A method of replaying a spatially heterodyne hologram having spatially heterodyne fringes at a replay angle includes: illuminating a photorefractive crystal having a holographic diffraction grating with a beam from a laser at an illumination angle, the holographic diffraction grating pattern including the spatially heterodyne hologram having spatially heterodyne fringes, wherein a difference between said illumination angle and said replay angle defines a diffraction angle .alpha. that is a function of a plane wave mathematically added to original object wave phase and amplitude data of said spatially heterodyne hologram having spatially heterodyne fringes.

Thomas, Clarence E. (Knoxville, TN); Hanson, Gregory R. (Clinton, TN)

2007-11-20T23:59:59.000Z

440

Grasland C., 2009, Spatial Analysis of Social Facts, to be published in Bavaud F. & Mager C. Handbook of Quantitative Geography, University of Lausanne SPATIAL ANALYSIS OF SOCIAL FACTS  

E-Print Network (OSTI)

City [2,72,19] does not mean that physical distance has to be excluded from spatial interaction models. Handbook of Quantitative Geography, University of Lausanne 1 SPATIAL ANALYSIS OF SOCIAL FACTS A tentative where distance in general - and physical distance in particular - are less and less important

Paris-Sud XI, Université de

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


441

Programmable Beam Spatial Shaping System for the National Ignition Facility  

SciTech Connect

A system of customized spatial light modulators has been installed onto the front end of the laser system at the National Ignition Facility (NIF). The devices are capable of shaping the beam profile at a low-fluence relay plane upstream of the amplifier chain. Their primary function is to introduce 'blocker' obscurations at programmed locations within the beam profile. These obscurations are positioned to shadow small, isolated flaws on downstream optical components that might otherwise limit the system operating energy. The modulators were designed to enable a drop-in retrofit of each of the 48 existing Pre Amplifier Modules (PAMs) without compromising their original performance specifications. This was accomplished by use of transmissive Optically Addressable Light Valves (OALV) based on a Bismuth Silicon Oxide photoconductive layer in series with a twisted nematic liquid crystal (LC) layer. These Programmable Spatial Shaper packages in combination with a flaw inspection system and optic registration strategy have provided a robust approach for extending the operational lifetime of high fluence laser optics on NIF.

Heebner, J; Borden, M; Miller, P; Hunter, S; Christensen, K; Scanlan, M; Haynam, C; Wegner, P; Hermann, M; Brunton, G; Tse, E; Awwal, A; Wong, N; Seppala, L; Franks, M; Marley, E; Wong, N; Seppala, L; Franks, M; Marley, E; Williams, K; Budge, T; Henesian, M; Stolz, C; Suratwala, T; Monticelli, M; Walmer, D; Dixit, S; Widmayer, C; Wolfe, J; Bude, J; McCarty, K; DiNicola, J M

2011-01-21T23:59:59.000Z

442

Transverse horizontal spatial coherence of deep arrivals at megameter ranges  

Science Journals Connector (OSTI)

Predictions of transverse horizontal spatial coherence from path integral theory are compared with measurements for two ranges between 2000 and 3000 km. The measurements derive from a low-frequency (75 Hz) bottom-mounted source at depth 810 m near Kauai that transmitted m-sequence signals over several years to two bottom-mounted horizontal line arrays in the North Pacific. In this paper we consider the early arriving portion of the deep acoustic field at these arrays. Horizontal coherence length estimates on the order of 400 m show good agreement with lengths calculated from theory. These lengths correspond to about 1 in horizontal arrival angle variability using a simple extended spatially incoherent source model. Estimates of scintillation index log-amplitude variance and decibel intensity variance indicate that the fields were partially saturated. There was no significant seasonal variability in these measures. The scintillation index predictions agree quite well with the dataset estimates; nevertheless the scattering regime predictions (fully saturated) vary from the regime classification (partially saturated) inferred from observation. This contradictory result suggests that a fuller characterization of scattering regime metrics may be required.

Rex K. Andrew; Bruce M. Howe; James A. Mercer; The NPAL Group (J. A. Colosi, B. D. Cornuelle, B. D. Dushaw, M. A. Dzieciuch, B. M. Howe, J. A. Mercer, W. H. Munk, R. C. Spindel, and P. F. Worcester)

2005-01-01T23:59:59.000Z

443

Spatial two-photon coherence of the entangled field produced by down-conversion using a partially spatially coherent pump beam  

SciTech Connect

We study the spatial coherence properties of the entangled two-photon field produced by parametric down-conversion (PDC) when the pump field is, spatially, a partially coherent beam. By explicitly treating the case of a pump beam of the Gaussian Schell-model type, we show that in PDC the spatial coherence properties of the pump field get entirely transferred to the spatial coherence properties of the down-converted two-photon field. As one important consequence of this study, we find that, for two-qubit states based on the position correlations of the two-photon field, the maximum achievable entanglement, as quantified by concurrence, is bounded by the degree of spatial coherence of the pump field. These results could be important by providing a means of controlling the entanglement of down-converted photons by tailoring the degree of coherence of the pump field.

Jha, Anand Kumar; Boyd, Robert W. [Institute of Optics, University of Rochester, Rochester, New York 14627 (United States)

2010-01-15T23:59:59.000Z

444

Urban Energy Balance Obtained from the Comprehensive Outdoor Scale Model Experiment. Part I: Basic Features of the Surface Energy Balance  

Science Journals Connector (OSTI)

The objective of this study is to examine the basic features of the surface energy balance (SEB) using the data obtained from the Comprehensive Outdoor Scale Model (COSMO). COSMO is an idealized miniature city that has no vegetation, no human ...

Toru Kawai; Manabu Kanda

2010-07-01T23:59:59.000Z

445

A spatial analysis of tuberculosis in Mexico, 1990-1996  

E-Print Network (OSTI)

(except for population with no healthcare benefits which is supplied through INEGI) data for this study is supplied by the Secretaria de Salud in Mexico, and the socioeconomic data is supplied by the Instituto Nacional de Estadisticas, Geografica, e... state healthcare benefits and private healthcare benefits by state, 1990-1996 is obtained from the Boletin de Informacion Estadistica 1997 (1998). Data for tuberculosis incidence by state 1990-1994 is obtained from Morliilidad 1994 (1997) while...

Elmore, Anita Marie

2012-06-07T23:59:59.000Z

446

Effects of aflatoxin production in peanuts on the nutritional and functional properties of products obtained by various processing methods  

E-Print Network (OSTI)

of flours and protein isolates from wholesome and aflatoxin contaminated peanuts 38 10. Hunter color values for wholesome and aflatoxin contaminated peanut flours and peanut protein isolates. 39 11. Lovibond color tintometer ratio for crude oil obtained... . from prepress solvent extraction and aqueous p~ocessing of wholesome and aflatoxin contaminated peanuts . . 44 12. Some physical and chemical properties of crude oil obtained from prepress solvent extraction and aqueous processing of wholesome...

Ifeacho, Carole Ihuoma

1978-01-01T23:59:59.000Z

447

The effect of different annealing temperatures on tin and cadmium telluride phases obtained by a modified chemical route  

SciTech Connect

Graphical abstract: Display Omitted Highlights: ? Synthesis of cadmium and tin telluride. ? Chemical route to obtain pure crystalline cadmium and tin telluride. ? Effect of the annealing temperature on the crystalline phases. ? Removal of tin oxide as side product through thermal treatment. -- Abstract: In this work tin and cadmium telluride were prepared by a modification of a chemical route reported in the literature to obtain metallacycles formed by oxidative addition of tin-tellurium bonds to platinum (II). Through this procedure it was possible to obtain tin and cadmium telluride. X-ray diffraction and X-ray photoelectron spectroscopy were used to identify the crystalline phases obtained as well as the presence of side products. In the case of tin telluride it was identified potassium chloride, metallic tellurium and tin oxide as contaminants. The tin oxidation states were also monitored by {sup 119}Sn Mssbauer spectroscopy. The annealing in hydrogen atmosphere was chosen as a strategy to reduce the tin oxide and promote its reaction with the excess of tellurium present in the medium. The evolution of this tin oxide phase was studied through the annealing of the sample at different temperatures. Cadmium telluride was obtained with high degree of purity (98.5% relative weight fraction) according to the Rietveld refinement of X-ray diffraction data. The modified procedure showed to be very effective to obtain amorphous tin and cadmium telluride and the annealing at 450 C has proven to be useful to reduce the amount of oxide produced as side product.

Mesquita, Anderson Fuzer [Departamento de Qumica, CCE, Universidade Federal do Esprito Santo, Campus Goiabeiras, 29075-910 Vitria, Esprito Santo (Brazil)] [Departamento de Qumica, CCE, Universidade Federal do Esprito Santo, Campus Goiabeiras, 29075-910 Vitria, Esprito Santo (Brazil); Porto, Arilza de Oliveira, E-mail: arilzaporto@yahoo.com.br [Departamento de Qumica, ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais (Brazil); Magela de Lima, Geraldo [Departamento de Qumica, ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais (Brazil)] [Departamento de Qumica, ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais (Brazil); Paniago, Roberto [Departamento de Fsica, ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais (Brazil)] [Departamento de Fsica, ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais (Brazil); Ardisson, Jos Domingos [Centro de Desenvolvimento da Tecnologia Nuclear, CDTN/CNEN, Belo Horizonte, Minas Gerais (Brazil)] [Centro de Desenvolvimento da Tecnologia Nuclear, CDTN/CNEN, Belo Horizonte, Minas Gerais (Brazil)

2012-11-15T23:59:59.000Z

448

NREL: Publications - Obtain Publications  

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

303-275-4363 (phone), or 303-275-4053 (fax). U.S. Department of Energy Information Bridge Search for NREL andor other U.S. Department of Energy publications, as well as...

449

Obtaining Disaster Assistance  

E-Print Network (OSTI)

? call TTY: 1-800-462-7585). You also may apply online at www.fema.gov (by clicking on ?Online Individual As- sistance Center?). FEMA does not accept applications through the mail; nor can they be completed at Disaster Recovery Centers (unless a Center...). If FEMA determines you are not eligible for assistance, you will receive a letter explaining why you were denied and how to appeal. Appeals must be made in writing and mailed within 60 days of FEMA?s decision. If you have insurance, you should contact...

Cavanagh, Joyce

2008-09-24T23:59:59.000Z

450

Obtaining Disaster Assistance (Spanish)  

E-Print Network (OSTI)

propietarios podr?n solicitar Pr?stamos para Bienes Inmuebles de hasta $200,000 para reparar o restituir una residencia principal al estado en el que se encontraba con anterioridad al desastre. El producido de la cobertura del seguro de su propiedad se...

Cavanagh, Joyce

2008-09-24T23:59:59.000Z

451

Spatial analysis techniques applied to uranium prospecting in Chihuahua State, Mexico  

Science Journals Connector (OSTI)

To estimate the distribution of uranium minerals in Chihuahua the advanced statistical model "Maximun Entropy Method" (MaxEnt) was applied. A distinguishing feature of this method is that it can fit more complex models in case of small datasets (x and y data) as is the location of uranium ores in the State of Chihuahua. For georeferencing uranium ores a database from the United States Geological Survey and workgroup of experts in Mexico was used. The main contribution of this paper is the proposal of maximum entropy techniques to obtain the mineral's potential distribution. For this model were used 24 environmental layers like topography gravimetry climate (worldclim) soil properties and others that were useful to project the uranium's distribution across the study area. For the validation of the places predicted by the model comparisons were done with other research of the Mexican Service of Geological Survey with direct exploration of specific areas and by talks with former exploration workers of the enterprise "Uranio de Mexico". Results. New uranium areas predicted by the model were validated finding some relationship between the model predictions and geological faults. Conclusions. Modeling by spatial analysis provides additional information to the energy and mineral resources sectors.

2014-01-01T23:59:59.000Z

452

Probe diagnostics of electron distributions in plasma with spatial and angular resolution  

SciTech Connect

This paper discusses the spatial resolution that is required to study inhomogeneous, low-temperature plasmas and is based on a review of low-temperature plasma electron kinetics and methods for probe measurements of electron energy distribution functions (EEDFs). It is stated that EEDFs can be extracted from probe measurements by applying an appropriate probe theory. The Druyvesteyn formula is most commonly used for this extraction and has been used in numerous publications, but more general theory can be used for a wider range of gas pressures. It is demonstrated that the Druyvesteyn formula can be obtained from the general theory as a limiting case. This paper justifies the application of wall probes in plasma studies of an energetic part of EEDFs. This justification is made for an idealized probe. We briefly review the methods for studying anisotropic plasmas and their usefulness in plasma research. It is demonstrated that to determine anisotropic electron energy distribution functions, a planar, one-sided probe is most convenient.

Demidov, V. I.; Kudryavtsev, A. A. [St. Petersburg State University, St. Petersburg 199034, Russia and ITMO University, Kronverkskiy pr. 49, St. Petersburg 197101 (Russian Federation)

2014-09-15T23:59:59.000Z

453

Applications of Algebraic Topology to Compatible Spatial Discretizations  

National Nuclear Security Administration (NNSA)

Hyman J. 1 Hyman J. 1 Applications of Algebraic Topology to Compatible Spatial Discretizations P. B. Bochev, * J. M. Hyman † * Sandia National Laboratories, Org. 9214, Albuquerque, NM 87185 † Los Alamos National Laboratory, T-7, Los Alamos, NM 87545 We provide a common framework for compatible discretizations using algebraic topology to guide our analysis. The main concept is the natural inner product on cochains, which induces a combinatorial Hodge theory. The framework comprises of mutually consistent operations of differentiation and integration, has a discrete Stokes theorem, and preserves the invariants of the DeRham cohomology groups. The latter allows for an elementary calculation of the kernel of the discrete Laplacian. Our framework provides an abstraction that includes examples

454

Spatial effects on species persistence and implications for biodiversity  

E-Print Network (OSTI)

Natural ecosystems are characterized by striking diversity of form and functions and yet exhibit deep symmetries emerging across scales of space, time and organizational complexity. Species-area relationships and species-abundance distributions are examples of emerging patterns irrespective of the details of the underlying ecosystem functions. Here we present empirical and theoretical evidence for a new macroecological pattern related to the distributions of local species persistence times, defined as the timespans between local colonizations and extinctions in a given geographic region. Empirical distributions pertaining to two different taxa, breeding birds and herbaceous plants, analyzed in a new framework that accounts for the finiteness of the observational period, exhibit power-law scaling limited by a cut-off determined by the rate of emergence of new species. In spite of the differences between taxa and spatial scales of analysis, the scaling exponents are statistically indistinguishable from each oth...

Bertuzzo, Enrico; Mari, Lorenzo; Maritan, Amos; Rodriguez-Iturbe, Ignacio; Rinaldo, Andrea; 10.1073/pnas.1017274108

2011-01-01T23:59:59.000Z

455

Spatial dependence of thermoelectric voltages and reversible heats  

Science Journals Connector (OSTI)

Thermocouples are probably the most widely used temperature sensors in science and industry but perhaps also the most often misunderstood. The basic distinction between an ordinary resistance thermometer in which the sensing element is localized and a thermocouple circuit in which potentials vary along the wires themselves is most clearly shown by a treatment in which the spatial dependences of the phenomena are explicitly invoked. Such treatment is essential to analysis of measurement errors in thermocouple circuits. In this article the basic equations of thermoelectricity are reviewed and their physical meanings discussed. The profile of the electrochemical potential for an illustrative example is then calculated from published data. Finally the problem of a thermocouple in a static magnetic field is discussed.

P. L. Walstrom

1988-01-01T23:59:59.000Z

456

Reflectivity of cholesteric liquid crystals with spatially varying pitch  

E-Print Network (OSTI)

Solids with spatially varying photonic structure offer gaps to light of a wider range of frequencies than do simple photonic systems. We solve numerically the field distribution in a solid cholesteric with a linearly varying inverse pitch (helical wavevector) using equations we derive for the general case. The simple idea that the position where the Bragg condition is locally satisfied is where reflection takes place is only true in part. Here, reflection is due to a region where the waves are forced to become evanescent, and the rate of variation of structure determines over which distance the waves decay and therefore how complete reflection is. The approximate local Bragg-de Vries schemes are shown to break down in detail at the edges of the gap, and an analytical estimate is given for the transmission coefficient.

S. Kutter; M. Warner

2003-04-30T23:59:59.000Z

457

Spatial Intensity Profiles of Galactic Cosmic Rays in the Heliosphere  

SciTech Connect

We study the spatial intensity profiles of galactic cosmic ray protons (H) and {alpha}-particles (He) during the solar minimum periods of 1987 (the so-called negative drift state) and 1977/1997 (both positive drift states) of the heliosphere. These intensities were measured with the Pioneer, Voyager and IMP spacecraft. The 1997 intensities were so low that one cannot readily explain them, even with the acceleration at the solar wind termination shock (SWTS) and modulation in the heliosheath included. Our heliospheric model is azimuthally symmetric with a spherical shock and heliopause, however, and we infer from its results that more realistic geometries may produce modulation effects that will explain the observations better.

Moraal, H. [School of Physics, Northwest University, Potchefstroom 2520 (South Africa); Caballero-Lopez, R.A.; McDonald, F.B. [Institute for Physical Science and Technology, University of Maryland, College Park, MD 20740 (United States)

2004-09-15T23:59:59.000Z

458

Statistical models for spatial patterns of inertial particles in turbulence  

E-Print Network (OSTI)

The dynamics of particles suspended in turbulent flows is of fundamental importance for a wide range of questions in astrophysics, cloud physics, oceanography, and in technology. Laboratory experiments and direct numerical simulations have demonstrated that heavy particles respond in intricate ways to turbulent fluctuations of the carrying fluid: independent particles may cluster together and form spatial patterns even though the fluid is incompressible, and the relative speeds of nearby particles may fluctuate strongly. Both phenomena depend sensitively on the parameters of the system, affect collision rates and outcomes, and thus the long-term fate of the system. This is a hard problem to describe theoretically: the turbulence determines the particle paths, but at the same time the turbulent fluctuations encountered by a particle depend sensitively upon its path through the medium. In recent years it has become clear that important aspects of the particle dynamics in turbulence can be understood in terms of...

Gustavsson, K

2014-01-01T23:59:59.000Z

459

Spatio-Temporal Data Management Using Object Lifecycles A Case Study of the Australian Capital Territory Spatial Data Management System  

E-Print Network (OSTI)

Territory Spatial Data Management System Dr Kristin Stock Abstract The representation of time in spatial scenarios. The method has been successfully applied in a production environment: the ACT Spatial Data both spatial and temporal characteristics of data in addition to the usual attributes; and identify

Stock, Kristin

460

TOWARDS MANAGING THE RISKS OF DATA MISUSE FOR SPATIAL DATACUBES M-A. Levesque a,b  

E-Print Network (OSTI)

TOWARDS MANAGING THE RISKS OF DATA MISUSE FOR SPATIAL DATACUBES M-A. Levesque a,b , Y. Bédard a support, Spatial OLAP, Spatial data quality, Warnings, Legal, Misuse, Risk ABSTRACT: Over the years, the mass consumption of spatial data caused several concerns in the geomatics community about the risk

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


461

Algorithms and Applications for Spatial Data Mining Martin Ester, Hans-Peter Kriegel, Jrg Sander (University of Munich)  

E-Print Network (OSTI)

- 1 - Algorithms and Applications for Spatial Data Mining Martin Ester, Hans-Peter Kriegel, Jörg) for an overview of spatial data mining). Finding implicit reg- ularities, rules or patterns hidden in spatial for spatial data is more complex than for relational data. This applies to both the efficiency of algorithms

Kriegel, Hans-Peter

462

A New Relational Spatial OLAP Approach For Multi-resolution and Spatio-multidimensional Analysis of Incomplete Field Data  

E-Print Network (OSTI)

, incomplete continuous field, multi-resolution geographic data Abstract: Integrating continuous spatial data to integrate spatial dimensions representing incomplete field data at different resolutions in a classical SOLAP architecture. 1 INTRODUCTION Spatial Data Warehouse (SDW) and Spatial OLAP (SOLAP) systems play

Paris-Sud XI, Université de

463

The Potential of a National Atlas as Integral Part of the Spatial Data Infrastructure Exemplified by the New Dutch National  

E-Print Network (OSTI)

9 The Potential of a National Atlas as Integral Part of the Spatial Data Infrastructure Exemplified developments around national spatial data infrastructures have stimulated interest to review and renew of an automatic visualisation of spatial data avail- able through the spatial data infrastructure (SDI) have been

Köbben, Barend

464

A data generator for evaluating spatial issues in precision agriculture * Dragoljub Pokrajac 1 , Tim Fiez 2 , Zoran Obradovic 1  

E-Print Network (OSTI)

A data generator for evaluating spatial issues in precision agriculture * Dragoljub Pokrajac 1 for evaluating spatial issues in precision agriculture Abstract With the rapid rise in site­specific data. To provide a tool for spatial data experimentation, we have developed a spatial data generator that allows

Obradovic, Zoran

465

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 50, NO. 5, MAY 2002 1355 Multioctave Spatial Power Combining in  

E-Print Network (OSTI)

Spatial Power Combining in Oversized Coaxial Waveguide Pengcheng Jia, Student Member, IEEE, Lee-Yin Chen

466

The CLIMIX model: A tool to create and evaluate spatially-resolved scenarios of photovoltaic and wind power development  

Science Journals Connector (OSTI)

Abstract Renewable energies arise as part of both economic development plans and mitigation strategies aimed at abating climate change. Contrariwise, most renewable energies are potentially vulnerable to climate change, which could affect in particular solar and wind power. Proper evaluations of this two-way climaterenewable energy relationship require detailed information of the geographical location of the renewable energy fleets. However, this information is usually provided as total amounts installed per administrative region, especially with respect to future planned installations. To help overcome this limiting issue, the objective of this contribution was to develop the so-called CLIMIX model: a tool that performs a realistic spatial allocation of given amounts of both photovoltaic (PV) and wind power installed capacities and evaluates the energy generated under varying climate conditions. This is done over a regular grid so that the created scenarios can be directly used in conjunction with outputs of climate models. First, we used the 0.44 resolution grid defined for the EURO-CORDEX project and applied the CLIMIX model to spatially allocate total amounts of both unreported 2012 and future 2020 PV and wind power installations in Europe at the country level. Second, we performed a validation exercise using the various options for estimating PV and wind power production under the created scenarios that are included in the model. The results revealed an acceptable agreement between the estimated and the recorded power production values in every European country. Lastly, we estimated increases in power production derived from the future deployment of new renewable units, often obtaining non-direct relationships. This latter further emphasizes the need of accurate spatially-resolved PV and wind power scenarios in order to perform reliable estimations of power production.

S. Jerez; F. Thais; I. Tobin; M. Wild; A. Colette; P. Yiou; R. Vautard

2015-01-01T23:59:59.000Z

467

Nonlocal homogenization theory in metamaterials: effective electromagnetic spatial dispersion and artificial chirality  

E-Print Network (OSTI)

We develop, from first principles, a general and compact formalism for predicting the electromagnetic response of a metamaterial with non-magnetic inclusions in the long wavelength limit, including spatial dispersion up to the second order. Specifically, by resorting to a suitable multiscale technique, we show that medium effective permittivity tensor and the first and second order tensors describing spatial dispersion can be evaluated by averaging suitable spatially rapidly-varying fields each satysifing electrostatic-like equations within the metamaterial unit cell. For metamaterials with negligible second-order spatial dispersion, we exploit the equivalence of first-order spatial dispersion and reciprocal bianisotropic electromagnetic response to deduce a simple expression for the metamaterial chirality tensor. Such an expression allows us to systematically analyze the effect of the composite spatial symmetry properties on electromagnetic chirality. We find that even if a metamaterial is geometrically achi...

Ciattoni, Alessandro

2015-01-01T23:59:59.000Z

468

Influence of a mobile robot on the spatial behaviour of quail chicks  

Science Journals Connector (OSTI)

Quail chicks encountered an autonomous mobile robot during their early development. The robot incorporated a heat source that stimulated following of chicks. The spatial behaviour of grown-up chicks was tested in an exploration test and a detour test. Chicks that grew with the mobile robot exhibited better spatial abilities than chicks grown with a static heat source. We discuss these results in the perspective of animal?robot interaction and of the role of early spatial experience on the behavioural development.

E de Margerie; S Lumineau; C Houdelier; M-A Richard Yris

2011-01-01T23:59:59.000Z

469

E-Print Network 3.0 - amazonian populations spatial Sample Search...  

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

palms: effects of spatial and temporal variation... 82:522-538 Bodmer RE, Fang TG, Moya L, Gill R (1994) Managing wildlife to conserve Amazonian forests-population......

470

Performance of Cooperative Spatial Multiplexing SISO/MIMO Communication Systems with Constellation Rearrangement technique  

Science Journals Connector (OSTI)

Cooperative spatial multiplexing technique proposed to simplify the transmitting and receiving process on the relay nodes while providing significant energy savings. This paper investigates the performance of constellation

Farhad Bahadori-Jahromi

2014-02-01T23:59:59.000Z

471

Three-dimensional phantoms for curvature correction in spatial frequency domain imaging  

Science Journals Connector (OSTI)

The sensitivity to surface profile of non-contact optical imaging, such as spatial frequency domain imaging, may lead to incorrect measurements of optical properties and consequently...

Nguyen, Thu T A; Le, Hanh N D; Vo, Minh; Wang, Zhaoyang; Luu, Long; Ramella-Roman, Jessica C

2012-01-01T23:59:59.000Z

472

Spatially distributed temperatures at the base of two mountain snowpacks measured  

E-Print Network (OSTI)

imaging (FLIR) can provide meter-scale temperature resolution in fairly complex terrain (Loheide, FLIR also requires consideration of spatial, temporal and angular variability in emissivity

Dozier, Jeff

473

Natural scene statistics based blind image quality assessment in spatial domain.  

E-Print Network (OSTI)

??We propose a natural scene statistic based quality assessment model Refer- enceless Image Spatial QUality Evaluator (RISQUE) which extracts marginal statistics of local normalized luminance (more)

Mittal, Anish

2011-01-01T23:59:59.000Z

474

Spatial Mismatch or Automobile Mismatch? An Examination of Race, Residence and Commuting in US Metropolitan Areas  

E-Print Network (OSTI)

1473 Spatial Mismatch or Automobile Mismatch? An Examinationimplicitly acknowledged that automobile access, not commutear- eas. As a rule, automobile commutes are signi?cantly

Taylor, Brian D.; Ong, Paul M.

1994-01-01T23:59:59.000Z

475

Spatial Characterization of Puerto Rican Commercial Fisheries: Gear Usage Across Habitat Classes and Bathymetry Ranges.  

E-Print Network (OSTI)

??The spatial characterization of Puerto Rican commercial fisheries describing fishing gear use in relation to habitat classes and bathymetry ranges was achieved through the collection (more)

Koeneke, Roberto

2011-01-01T23:59:59.000Z

476

Perceptual load and the capture of spatial attention by color singletons.  

E-Print Network (OSTI)

??Recent experiments have cast considerable doubt upon the ability of color singletons to capture spatial attention in a stimulus-driven manner. Despite the lack of evidence (more)

Gaspelin, Nicholas

2010-01-01T23:59:59.000Z

477

Spatial GHG Inventory: Analysis of Uncertainty Sources. A Case Study for Ukraine  

Science Journals Connector (OSTI)

A geoinformation technology for creating spatially distributed greenhouse gas inventories based on a methodology provided by the Intergovernmental Panel on Climate Change and special software linking input dat...

R. Bun; M. Gusti; L. Kujii; O. Tokar; Y. Tsybrivskyy

2007-01-01T23:59:59.000Z

478

Assessing Uncertainty in Spatial Exposure Models for Air Pollution Health Effects Assessment  

E-Print Network (OSTI)

s exposure to nitrogen dioxide in Sweden: investigatingto traf- fic and nitrogen dioxide. Epidemiology 16(6):737Spatial variations in nitrogen dioxide concen- trations in

2007-01-01T23:59:59.000Z

479

E-Print Network 3.0 - affects spatial distributions Sample Search...  

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

A&M University Collection: Computer Technologies and Information Sciences 2 Trends in Spatial Data Shashi Shekhar Summary: , and geostatistics. Point process: A point process...

480

E-Print Network 3.0 - age productivity spatial Sample Search...  

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

by Nermin Mudzelet... and Weak Points Relation to Our Project Multidimensional Model for Spatial Data Introduction Conceptual Source: Kaiserslautern, Universitt - Abteilung...

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481

EGR Spatial Uniformity & Cylinder-Resolved Transients-Measurements using an Absorption Spectroscopy Probe  

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

This poster describes development and application of an EGR probe for assessing steady-state spatial uniformity and cylinder-resolved EGR dynamics.

482

E-Print Network 3.0 - auditory spatial cues Sample Search Results  

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

cue has no influence Summary: attention can be controlled visually, but not by auditory spatial cues. The reason for this difference... 50% informative data (Fig. 5A) - auditory...

483

E-Print Network 3.0 - applying spatially resolved Sample Search...  

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

Mining, Modelling and Management, Vol. 1, No. 1, 2008 103 A relational perspective on spatial data mining Summary: that must be resolved before the relational approach can be...

484

E-Print Network 3.0 - assessing spatial uncertainty Sample Search...  

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

Uncertainty analysis assesses... in evaluating alternatives. Concern about uncertainty in spatial data and analyses is not new, but systematic... A thorough understanding of...

485

E-Print Network 3.0 - assembling spatially explicit Sample Search...  

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

of the samples. I want to assess, explicitly, how different a priori temporal and spatial slices of the data... in the regional' small mammal assembly among years...

486

E-Print Network 3.0 - analyzing spatial patterns Sample Search...  

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

Collection: Computer Technologies and Information Sciences ; Geosciences 6 Trends in Spatial Data Shashi Shekhar , Pusheng Zhang , Yan Huang , Ranga Summary: interesting and...

487

Spatially Multiplexed Fiber-optic Microscopy for Simultaneous Imaging of Multiple Brain Regions  

Science Journals Connector (OSTI)

Spatially multiplexed fiber-optic imager is experimentally demonstrated. Our system utilizes a trifurcated fiber bundles for real-time brain imaging in 3 different areas.

Cha, Jaepyeong; Kang, Jin U

488

Spatial Mapping of Protein Abundances in the Mouse Brain by Voxelation...  

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

Mapping of Protein Abundances in the Mouse Brain by Voxelation Integrated with High-Throughput Liquid Chromatography Spatial Mapping of Protein Abundances in the Mouse Brain by...

489

Hydrogen sulfide spatial distribution and exposure in deep-pit swine housing.  

E-Print Network (OSTI)

??The objectives of this research focus on investigating spatial distribution of hydrogen sulfide gas associated with manure removal and agitation events in deep-pit swine production (more)

Swestka, Randy John

2010-01-01T23:59:59.000Z

490

Power in Transition: The Spatial Variation of Territorial Cohesion in Kazakhstan  

E-Print Network (OSTI)

Studies of territorial cohesion combine aspects of effective national territory and spatial inequalities, focusing on better integration of regions through balanced economic growth, reducing regional disparities, and ...

Burke, Cristin

2013-08-31T23:59:59.000Z

491

Supplemental Document: Interface Techniques for 3D Control of Spatial Keyframing  

E-Print Network (OSTI)

Supplemental Document: Interface Techniques for 3D Control of Spatial Keyframing Igor Mordatch. Figure 4: Two photographs of character poses created interactively using our 3D tracking interface

Toronto, University of

492

Geostatistical improvements of evapotranspiration spatial information using satellite land surface and weather stations data  

Science Journals Connector (OSTI)

The objective of the present study was to use the simple cokriging methodology to characterize the spatial variability of PenmanMonteith reference evapotranspiration and Thornthwaite potential evapotranspirat...

Marcelo de Carvalho Alves; Luiz Gonsaga de Carvalho

2013-07-01T23:59:59.000Z

493

Coherence and polarization properties of a radially polarized beam with variable spatial coherence  

Science Journals Connector (OSTI)

In a recent publication [Appl. Phys. Lett, 100, 051108 (2012)], a radially polarized (RP) beam with variable spatial coherence (i.e., partially coherent RP beam) was generated...

Wu, Gaofeng; Wang, Fei; Cai, Yangjian

2012-01-01T23:59:59.000Z

494

Climate Extremes in the Southeast United States: Observed Variability, Spatial Classification, and Related Planning.  

E-Print Network (OSTI)

??Spatial and temporal trends in temperature and precipitation extremes were investigated for the Southeast United States for the period 1948 to 2012 using 27 extreme (more)

Powell, Emily J.

2014-01-01T23:59:59.000Z

495

Simple structured illumination microscope setup with high acquisition speed by using a spatial light modulator  

Science Journals Connector (OSTI)

We describe a two-beam interference structured illumination fluorescence microscope. The novelty of the presented system lies in its simplicity. A programmable spatial light modulator...

Frster, Ronny; Lu-Walther, Hui-Wen; Jost, Aurlie; Kielhorn, Martin; Wicker, Kai; Heintzmann, Rainer

2014-01-01T23:59:59.000Z

496

Two-dimensional all-optical spatial light modulation with high speed in coherent media  

Science Journals Connector (OSTI)

We show theoretical evidence that coherent systems based on electromagnetically induced transparency (EIT) can function as optically addressed spatial light modulators with megahertz...

Zhao, L; Wang, T; Yelin, S F

2009-01-01T23:59:59.000Z

497

The Planck Length Scale and Einstein Mass-Energy Obtained from the Sciama-Mach Large Number Relationship  

E-Print Network (OSTI)

If a physical significance should be attributed to the cosmological large number relationship obtained from Sciama's formulation of Mach's Principle, then a number of interesting physical conclusions may be drawn. The Planck length is naturally obtained as the amplitude of waves in a medium whose properties are implied by the relationship. The relativistic internal energy associated with a rest mass is explicitly related to the gravitational potential energy of the Universe, and consistency with the Einstein photon energy is demonstrated. Broader cosmological consequences of this formulation are addressed.

Scott Funkhouser

2003-09-25T23:59:59.000Z

498

Studies on design of a process for organo-refining of coal to obtain super clean coal  

SciTech Connect

Organo-refining of coal results in refining the coal to obtain super clean coal and residual coal. Super clean coal may be used to obtain value added chemicals, products, and cleaner fuels from coal. In the present work, studies on the design of a semicontinuous process for organo-refining of one ton of coal have been made. The results are reported. This is only a cursory attempt for the design, and further studies may be required for designing this process for use in the development of a scaled-up process of organo-refining of coal.

Sharma, C.S.; Sharma, D.K. [Indian Inst. of Tech., New Delhi (India). Centre for Energy Studies

1999-08-01T23:59:59.000Z

499

Method and apparatus for obtaining stack traceback data for multiple computing nodes of a massively parallel computer system  

DOE Patents (OSTI)

A data collector for a massively parallel computer system obtains call-return stack traceback data for multiple nodes by retrieving partial call-return stack traceback data from each node, grouping the nodes in subsets according to the partial traceback data, and obtaining further call-return stack traceback data from a representative node or nodes of each subset. Preferably, the partial data is a respective instruction address from each node, nodes having identical instruction address being grouped together in the same subset. Preferably, a single node of each subset is chosen and full stack traceback data is retrieved from the call-return stack within the chosen node.

Gooding, Thomas Michael (Rochester, MN); McCarthy, Patrick Joseph (Rochester, MN)

2010-03-02T23:59:59.000Z

500

Simultaneous High-Resolution 2-Dimensional Spatial and 1-Dimensional Picosecond Streaked X-ray Pinhole Imaging  

SciTech Connect

A Kentech x-ray streak camera was run at the LLNL Compact Multipulse Terawatt (COMET) laser to record simultaneous space- and time-resolved measurements of picosecond laser-produced plasmas. Four different x-ray energy channels were monitored using broad-band filters to record the time history of Cu targets heated at irradiances of 10{sup 16} - 10{sup 19} W/cm{sup 2}. Through the Cu filter channel, a time-resolution below 3ps was obtained. Additionally, an array of 10 {micro}m diameter pinholes was placed in front of the camera to produce multiple time-resolved x-ray images on the photocathode and time-integrated images on the phosphor with 10 and 15 times magnification, respectively, with spatial resolution of <13 {micro}m.

Steel, A B; Nagel, S R; Dunn, J; Baldis, H A

2012-05-03T23:59:59.000Z