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1

Genetic algorithms applied to reconstructing coded imaging of neutrons and analysis of residual watermark  

Science Conference Proceedings (OSTI)

Monte-Carlo simulation of neutron coded imaging based on encoding aperture for Z-pinch of large field-of-view with 5 mm radius has been investigated, and then the coded image has been obtained. Reconstruction method of source image based on genetic algorithms (GA) has been established. 'Residual watermark,' which emerges unavoidably in reconstructed image, while the peak normalization is employed in GA fitness calculation because of its statistical fluctuation amplification, has been discovered and studied. Residual watermark is primarily related to the shape and other parameters of the encoding aperture cross section. The properties and essential causes of the residual watermark were analyzed, while the identification on equivalent radius of aperture was provided. By using the equivalent radius, the reconstruction can also be accomplished without knowing the point spread function (PSF) of actual aperture. The reconstruction result is close to that by using PSF of the actual aperture.

Zhang Tiankui; Hu Huasi; Jia Qinggang; Zhang Fengna; Liu Zhihua; Hu Guang; Guo Wei [School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049 (China); Chen Da [School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049 (China); College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 (China); Li Zhenghong [Institute of Nuclear Physics and Chemistry, CAEP, Mianyang, 621900 Sichuan (China); Wu Yuelei [School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049 (China); Nuclear and Radiation Safety Centre, State Environmental Protection Administration (SEPA), Beijing 100082 (China)

2012-11-15T23:59:59.000Z

2

Reconstructing Conservation  

E-Print Network (OSTI)

Review: Reconstructing Conservation By Ben Minteer andEds. ). Reconstructing Conservation. Washington, DC: Islandabout the nature of conservation, and for U.S. scholars in

Hamilton-Smith, Elery

2005-01-01T23:59:59.000Z

3

Reconstructing formulas  

Science Conference Proceedings (OSTI)

A three-year study of commercial laundry liquids in Western Europe and the United States traces the evolution of surfactant systems. Reconstructing formulas Inform Magazine Inform Archives Surfactants and Detergents A three-year study of commerci

4

A Model-Based Method For Building Reconstruction  

Science Conference Proceedings (OSTI)

In this paper model-based reconstruction methods are applied to the detailed reconstruction of buildings from close-range images. The 3D points obtained through image matching are segmented into a coarse polyhedral model with a robust regression ...

Konrad Schindler; Joachim Bauer

2003-10-01T23:59:59.000Z

5

Applied Science  

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

Applied Science Applied Science Correlation of predicted and measured iron oxidation states in mixed iron oxides H. D. Rosenfeld and W. L. Holstein Development of a quantitative measurement of a diesel spray core using synchrotron x-rays C.F. Powell, Y. Yue, S. Gupta, A. McPherson, R. Poola, and J. Wang Localized phase transformations by x-ray-induced heating R.A. Rosenberg, Q. Ma, W. Farrell, E.D. Crozier, G.J. Soerensen, R.A. Gordon, and D.-T. Jiang Resonant x-ray scattering at the Se edge in ferroelectric liquid crystal materials L. Matkin, H. Gleeson, R. Pindak, P. Mach, C. Huang, G. Srajer, and J. Pollmann Synchrotron-radiation-induced anisotropic wet etching of GaAs Q. Ma, D.C. Mancini, and R.A. Rosenberg Synchrotron-radiation-induced, selective-area deposition of gold on

6

CDIAC Climate Reconstruction Data Sets  

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

Climate Reconstructions CDIAC Climate Holdings Containing Climate Reconstruction Data Data Set Name Investigators Data TypeFormat Period of Record Historic isotopic temperature...

7

Systems description of measurement and reconstruction of microgrid polarimeters  

Science Conference Proceedings (OSTI)

In a recent paper we developed a formal theory of demodulation for polarimeters with arbitrary modulation schemes. This theory provides a framework for artifact free reconstruction of polarimetric data provided a band limited scene. Here we apply that ...

Charles LaCasse; Tyson Ririe; Russell Chipman; J. Scott Tyo

2011-03-01T23:59:59.000Z

8

Overview of image reconstruction  

SciTech Connect

Image reconstruction (or computerized tomography, etc.) is any process whereby a function, f, on R/sup n/ is estimated from empirical data pertaining to its integrals, ..integral..f(x) dx, for some collection of hyperplanes of dimension k < n. The paper begins with background information on how image reconstruction problems have arisen in practice, and describes some of the application areas of past or current interest; these include radioastronomy, optics, radiology and nuclear medicine, electron microscopy, acoustical imaging, geophysical tomography, nondestructive testing, and NMR zeugmatography. Then the various reconstruction algorithms are discussed in five classes: summation, or simple back-projection; convolution, or filtered back-projection; Fourier and other functional transforms; orthogonal function series expansion; and iterative methods. Certain more technical mathematical aspects of image reconstruction are considered from the standpoint of uniqueness, consistency, and stability of solution. The paper concludes by presenting certain open problems. 73 references. (RWR)

Marr, R.B.

1980-04-01T23:59:59.000Z

9

Reconstructing the world's museums  

Science Conference Proceedings (OSTI)

Photorealistic maps are a useful navigational guide for large indoor environments, such as museums and businesses. However, it is impossible to acquire photographs covering a large indoor environment from aerial viewpoints. This paper presents a 3D reconstruction ...

Jianxiong Xiao; Yasutaka Furukawa

2012-10-01T23:59:59.000Z

10

Molecular Phylogeny Reconstruction  

E-Print Network (OSTI)

Molecular Phylogeny Reconstruction Sudhir Kumar, Arizona State University, Tempe, Arizona, USA Alan Filipski, Arizona State University, Tempe, Arizona, USA Molecular phylogenetics deals with the inference molecular data. By modelling patterns of molecular change in protein and deoxyribonucleic acid (DNA

Kumar, Sudhir

11

Reconstruction algorithms for MRI  

E-Print Network (OSTI)

This dissertation presents image reconstruction algorithms for Magnetic Resonance Imaging (MRI) that aims to increase the imaging efficiency. Algorithms that reduce imaging time without sacrificing the image quality and ...

Bilgic?, Berkin

2013-01-01T23:59:59.000Z

12

Bayesian Image Reconstruction Based on Voronoi Diagrams  

E-Print Network (OSTI)

We present a Bayesian Voronoi image reconstruction technique (VIR) for interferometric data. Bayesian analysis applied to the inverse problem allows us to derive the a-posteriori probability of a novel parameterization of interferometric images. We use a variable Voronoi diagram as our model in place of the usual fixed pixel grid. A quantization of the intensity field allows us to calculate the likelihood function and a-priori probabilities. The Voronoi image is optimized including the number of polygons as free parameters. We apply our algorithm to deconvolve simulated interferometric data. Residuals, restored images and chi^2 values are used to compare our reconstructions with fixed grid models. VIR has the advantage of modeling the image with few parameters, obtaining a better image from a Bayesian point of view.

G. F. Cabrera; S. Casassus; N. Hitschfeld

2007-12-26T23:59:59.000Z

13

Sparse Shape Reconstruction  

E-Print Network (OSTI)

This paper introduces a new shape-based image reconstruction technique applicable to a large class of imaging problems formulated in a variational sense. Given a collection of shape priors (a shape dictionary), we define our problem as choosing the right elements and geometrically composing them through basic set operations to characterize desired regions in the image. This combinatorial problem can be relaxed and then solved using classical descent methods. The main component of this relaxation is forming certain compactly supported functions which we call "knolls", and reformulating the shape representation as a basis expansion in terms of such functions. To select suitable elements of the dictionary, our problem ultimately reduces to solving a nonlinear program with sparsity constraints. We provide a new sparse nonlinear reconstruction technique to approach this problem. The performance of proposed technique is demonstrated with some standard imaging problems including image segmentation, X-ray tomography and diffusive tomography.

Alireza Aghasi; Justin Romberg

2013-02-28T23:59:59.000Z

14

Metrological digital audio reconstruction  

DOE Patents (OSTI)

Audio information stored in the undulations of grooves in a medium such as a phonograph record may be reconstructed, with little or no contact, by measuring the groove shape using precision metrology methods coupled with digital image processing and numerical analysis. The effects of damage, wear, and contamination may be compensated, in many cases, through image processing and analysis methods. The speed and data handling capacity of available computing hardware make this approach practical. Two examples used a general purpose optical metrology system to study a 50 year old 78 r.p.m. phonograph record and a commercial confocal scanning probe to study a 1920's celluloid Edison cylinder. Comparisons are presented with stylus playback of the samples and with a digitally re-mastered version of an original magnetic recording. There is also a more extensive implementation of this approach, with dedicated hardware and software.

Fadeyev; Vitaliy (Berkeley, CA), Haber; Carl (Berkeley, CA)

2004-02-19T23:59:59.000Z

15

National reconstruction information management system  

Science Conference Proceedings (OSTI)

National Reconstruction Information Management System (NARIMS) is a revolutionary concept designed and developed by the National Reconstruction Bureau, Government of Pakistan, to work as an aid in support of the Local Governments under the Devolution ... Keywords: administration, asset management, community development, decision support, e-governance, financial, geographical information system, human resource management, information management system, local government, monitoring, performance evaluation

Daniyal Aziz; Syed Adnan Shah; Deeba Gilani

2007-12-01T23:59:59.000Z

16

Accurate accident reconstruction in VANET  

Science Conference Proceedings (OSTI)

We propose a forensic VANET application to aid an accurate accident reconstruction. Our application provides a new source of objective real-time data impossible to collect using existing methods. By leveraging inter-vehicle communications, we compile ... Keywords: EDR, VANET, accident reconstruction, in-vehicle applications

Yuliya Kopylova; Csilla Farkas; Wenyuan Xu

2011-07-01T23:59:59.000Z

17

Photometric redshifts from reconstructed QSO templates  

E-Print Network (OSTI)

From SDSS commissioning photometric and spectroscopic data, we investigate the utility of photometric redshift techniques to the task of estimating QSO redshifts. We consider empirical methods (e.g. nearest-neighbor searches and polynomial fitting), standard spectral template fitting and hybrid approaches (i.e. training spectral templates from spectroscopic and photometric observations of QSOs). We find that in all cases, due to the presence of strong emission-lines within the QSO spectra, the nearest-neighbor and template fitting methods are superior to the polynomial fitting approach. Applying a novel reconstruction technique, we can, from the SDSS multicolor photometry, reconstruct a statistical representation of the underlying SEDs of the SDSS QSOs. Although, the reconstructed templates are based on only broadband photometry the common emission lines present within the QSO spectra can be recovered in the resulting spectral energy distributions. The technique should be useful in searching for spectral differences among QSOs at a given redshift, in searching for spectral evolution of QSOs, in comparing photometric redshifts for objects beyond the SDSS spectroscopic sample with those in the well calibrated photometric redshifts for objects brighter than 20th magnitude and in searching for systematic and time variable effects in the SDSS broad band photometric and spectral photometric calibrations.

Tamas Budavari; Istvan Csabai; Alexander S. Szalay; Andrew J. Connolly; Gyula P. Szokoly

2001-06-03T23:59:59.000Z

18

Geometry features measurement of traffic accident for reconstruction based on close-range photogrammetry  

Science Conference Proceedings (OSTI)

This paper studies the feasibility of investigating a traffic accident and offering initial data for traffic accident reconstruction (TAR) using a photogrammetric technique. Compared with the conventional roller tape applied by the traffic police of ... Keywords: Accident reconstruction, Close-range photogrammetry, Direct linear transformation, Traffic accident scene, Vehicle deformation

Xinguang Du; Xianlong Jin; Xiaoyun Zhang; Jie Shen; Xinyi Hou

2009-07-01T23:59:59.000Z

19

Applied Quantum Information Science  

Science Conference Proceedings (OSTI)

Applied Quantum Information Science. Summary: Theory is being developed and used to devise methods for preserving ...

2012-05-30T23:59:59.000Z

20

Iterative maximum-likelihood reconstruction in quantum homodyne tomography  

E-Print Network (OSTI)

I propose an iterative expectation maximization algorithm for reconstructing a quantum optical ensemble from a set of balanced homodyne measurements performed on an optical state. The algorithm applies directly to the acquired data, bypassing the intermediate step of calculating marginal distributions. The advantages of the new method are made manifest by comparing it with the traditional inverse Radon transformation technique.

A. I. Lvovsky

2003-11-14T23:59:59.000Z

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

Stochastic Block Models and Reconstruction  

E-Print Network (OSTI)

The planted partition model (also known as the stochastic blockmodel) is a classical cluster-exhibiting random graph model that has been extensively studied in statistics, physics, and computer science. In its simplest form, the planted partition model is a model for random graphs on $n$ nodes with two equal-sized clusters, with an between-class edge probability of $q$ and a within-class edge probability of $p$. Although most of the literature on this model has focused on the case of increasing degrees (ie.\\ $pn, qn \\to \\infty$ as $n \\to \\infty$), the sparse case $p, q = O(1/n)$ is interesting both from a mathematical and an applied point of view. A striking conjecture of Decelle, Krzkala, Moore and Zdeborov\\'a based on deep, non-rigorous ideas from statistical physics gave a precise prediction for the algorithmic threshold of clustering in the sparse planted partition model. In particular, if $p = a/n$ and $q = b/n$, then Decelle et al.\\ conjectured that it is possible to cluster in a way correlated with the true partition if $(a - b)^2 > 2(a + b)$, and impossible if $(a - b)^2 C (a + b)$ for some sufficiently large $C$. We prove half of their prediction, showing that it is indeed impossible to cluster if $(a - b)^2 2(a + b)$. Following Decelle et al, our work establishes a rigorous connection between the clustering problem, spin-glass models on the Bethe lattice and the so called reconstruction problem. This connection points to fascinating applications and open problems.

Elchanan Mossel; Joe Neeman; Allan Sly

2012-02-07T23:59:59.000Z

22

Fan-beam Reconstruction Methods  

E-Print Network (OSTI)

In a previous paper a technique was developed for finding reconstruction algorithms for arbitrary ray-sampling schemes. The resulting algorithms use a general linear operator, the kernel of which depends on the details ...

Horn, Berthold K.P.

1977-11-01T23:59:59.000Z

23

Method for image reconstruction of moving radionuclide source distribution  

SciTech Connect

A method for image reconstruction of moving radionuclide distributions. Its particular embodiment is for single photon emission computed tomography (SPECT) imaging of awake animals, though its techniques are general enough to be applied to other moving radionuclide distributions as well. The invention eliminates motion and blurring artifacts for image reconstructions of moving source distributions. This opens new avenues in the area of small animal brain imaging with radiotracers, which can now be performed without the perturbing influences of anesthesia or physical restraint on the biological system.

Stolin, Alexander V.; McKisson, John E.; Lee, Seung Joon; Smith, Mark Frederick

2012-12-18T23:59:59.000Z

24

FORCE RECONSTRUCTION USING THE SUM OF WEIGHTED ACCELERATIONS  

Office of Scientific and Technical Information (OSTI)

i i FORCE RECONSTRUCTION USING THE SUM OF WEIGHTED ACCELERATIONS TECHNIQUE - _-FUkT PRt_EOURE Thomas G. Came, Randy L. Mayas and Vesta I. Bateman .... _ i_ _ :!_ Sandia NationalLaboratories _. .... Albuquerque, NewMexico87185, USA ' _ i_ _ / ABSTRACT important design consideration. This would include payloador satelliteloads duringrocket launches[3]. Force reconstruction is a procedure in which the externally applied force is inferred from measured An applicationthat will be discussed as part of this structuralresponse ratherthan directlymeasured. In paper is the impact into a rigid barrier of a weapon a recently developed technique, the response system with an energy-absorbing nose. The nose acceleration time-histories are multiplied by scalar had been designed to absorb the energy of impact weights and summed to produce the reconstructed and to mitigate the shock to the

25

MENT reconstruction and potting comparison of a LMFBR fuel bundle  

SciTech Connect

Since the advent of computer-assisted-tomography (CAT), the CAT techniques have been rapidly expanded to the nuclear industry. A number of investigators have applied these techniques to reconstruct the fuel bundle configuration inside a subassembly with various degrees of resolution; however, there has been little data available on the accuracy of these reconstructions, and no comparisons have been made with the internal structure of actual irradiated subassemblies. Some efforts have utilized pretest mock-ups to calibrate the CAT algorithms, but the resulting mock-up configurations do not necessarily represent an actual subassembly, so an exact comparison has been lacking. The purpose of this paper is to present the results of a comparison between a CAT reconstruction of an irradiated subassembly and the destructive examination of the same subassembly.

Betten, P.R.; Tow, D.M.

1984-01-01T23:59:59.000Z

26

SOUTHVIEWDR Center for Applied  

E-Print Network (OSTI)

/Geology Chemistry Biological Sciences Geology Lab Bookstore Reed Milledge Payne Memorial Hall SANFORD DR Center CAES Activity Center Visitors Center (Four Towers) Greenhouses Center for Applied Isotope Study

Hall, Daniel

27

Applied Energy Programs  

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

Applied Energy Programs Applied Energy Programs Applied Energy Programs Los Alamos is using its world-class scientific capabilities to enhance national energy security by developing energy sources with limited environmental impact and by improving the efficiency and reliability of the energy infrastructure. CONTACT US Acting Program Director Melissa Fox (505) 663-5538 Email Applied Energy Program Office serves as the hub connecting the Laboratory's scientific and technical resources to DOE sponsors, DoD programs, and to industry. The Applied Energy Program Office manages Los Alamos National Laboratory programs funded by the Department of Energy's (DOE's) Offices of Energy Efficiency/Renewable Energy, Electricity Delivery and Energy Reliability, and Fossil Energy. With energy use increasing across the nation and the

28

Dictionary Approaches To Image Compression And Reconstruction  

E-Print Network (OSTI)

This paper proposes using a collection of parameterized waveforms, known as a dictionary, for the purpose of medical image compression. These waveforms, denoted as f g , are discrete time signals, where g represents the dictionary index. A dictionary with a collection of these waveforms is typically complete or overcomplete. Given such a dictionary, the goal is to obtain a representation image based on the dictionary. We examine the effectiveness of applying Basis Pursuit (BP), Best Orthogonal Basis (BOB), Matching Pursuits (MP), and the Method of Frames (MOF) methods for the compression of digitized radiological images with a wavelet-packet dictionary. The performance of these algorithms is studied for medical images with and without additive noise. Keywords: Image coding and compression, Medical Image Processing, Signal Reconstruction, Wavelets Prepared through collaborative participation in the Advanced Telecommunications/Information Distribution Research Program (ATIRP) Consortiu...

Nigel A. Ziyad; Erwin T. Gilmore; Mohamed F. Chouikha

1998-01-01T23:59:59.000Z

29

Essays in applied microeconomics  

E-Print Network (OSTI)

This dissertation consists of three chapters on topics in applied microeconomics. In the first chapter. I investigate whether voters are more likely to support additional spending on local public services when they perceive ...

Aron-Dine, Aviva

2012-01-01T23:59:59.000Z

30

Free energy reconstruction from irreversible single- molecule pulling experiments  

E-Print Network (OSTI)

Figure IV.2: Free Energy Reconstruction using IrreversibleIV Springs and Speeds in Free Energy Reconstruction fromA. Free Energy Reconstruction from Biased Experiments (

Minh, David

2007-01-01T23:59:59.000Z

31

The Applied Mathematics for Power Systems (AMPS)  

SciTech Connect

Increased deployment of new technologies, e.g., renewable generation and electric vehicles, is rapidly transforming electrical power networks by crossing previously distinct spatiotemporal scales and invalidating many traditional approaches for designing, analyzing, and operating power grids. This trend is expected to accelerate over the coming years, bringing the disruptive challenge of complexity, but also opportunities to deliver unprecedented efficiency and reliability. Our Applied Mathematics for Power Systems (AMPS) Center will discover, enable, and solve emerging mathematics challenges arising in power systems and, more generally, in complex engineered networks. We will develop foundational applied mathematics resulting in rigorous algorithms and simulation toolboxes for modern and future engineered networks. The AMPS Center deconstruction/reconstruction approach 'deconstructs' complex networks into sub-problems within non-separable spatiotemporal scales, a missing step in 20th century modeling of engineered networks. These sub-problems are addressed within the appropriate AMPS foundational pillar - complex systems, control theory, and optimization theory - and merged or 'reconstructed' at their boundaries into more general mathematical descriptions of complex engineered networks where important new questions are formulated and attacked. These two steps, iterated multiple times, will bridge the growing chasm between the legacy power grid and its future as a complex engineered network.

Chertkov, Michael [Los Alamos National Laboratory

2012-07-24T23:59:59.000Z

32

Avoiding local optima in single particle reconstruction  

Science Conference Proceedings (OSTI)

In single-particle reconstruction, a 3D structure is reconstructed from a large number of randomly oriented 2D projections, using techniques related to computed tomography. Unlike in computed tomography, however, the orientations of the projections must ...

Marshall Bern; Jindong Chen; Hao Chi Wong

2005-05-01T23:59:59.000Z

33

Improved Reconstruction of Global Precipitation since 1900  

Science Conference Proceedings (OSTI)

An improved land–ocean global monthly precipitation anomaly reconstruction is developed for the period beginning in 1900. Reconstructions use the available historical data and statistics developed from the modern satellite-sampled period to ...

Thomas M. Smith; Phillip A. Arkin; Li Ren; Samuel S. P. Shen

2012-10-01T23:59:59.000Z

34

PRSS to aid palaeocontinental reconstructions simulation research  

Science Conference Proceedings (OSTI)

The palaeocontinental reconstructions have been a hot issue in global tectonics and geodynamics research. In addition, the development of computers promises new methods and means for quantitative analysis of the palaeocontinental reconstructions. Therefore, ... Keywords: Euler's theorem, Palaeomagnetism, Spherical geometric theorem

Liang Feng, Chen Jianpingb, Yu Miaob, Gong Fuxiub, Yu Pingping, Tian Huib

2013-04-01T23:59:59.000Z

35

Applied Science/Techniques  

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

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

36

Applied Mathematics | Argonne National Laboratory  

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

Applied Mathematics Applied Mathematics Our work in applied mathematics ranges from algorithm design, to development of software tools and technology, to advanced simulations in...

37

Errors and Uncertainties in Dose Reconstruction for Radiation Effects Research  

SciTech Connect

Dose reconstruction for studies of the health effects of ionizing radiation have been carried out for many decades. Major studies have included Japanese bomb survivors, atomic veterans, downwinders of the Nevada Test Site and Hanford, underground uranium miners, and populations of nuclear workers. For such studies to be credible, significant effort must be put into applying the best science to reconstructing unbiased absorbed doses to tissues and organs as a function of time. In many cases, more and more sophisticated dose reconstruction methods have been developed as studies progressed. For the example of the Japanese bomb survivors, the dose surrogate “distance from the hypocenter” was replaced by slant range, and then by TD65 doses, DS86 doses, and more recently DS02 doses. Over the years, it has become increasingly clear that an equal level of effort must be expended on the quantitative assessment of uncertainty in such doses, and to reducing and managing uncertainty. In this context, this paper reviews difficulties in terminology, explores the nature of Berkson and classical uncertainties in dose reconstruction through examples, and proposes a path forward for Joint Coordinating Committee for Radiation Effects Research (JCCRER) Project 2.4 that requires a reasonably small level of effort for DOSES-2008.

Strom, Daniel J.

2008-04-14T23:59:59.000Z

38

Hanford Environmental Dose Reconstruction Project  

SciTech Connect

The objective of the Hanford Environmental Dose Reconstruction Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed, from release to impact on humans (dose estimates): Source terms; environmental transport environmental monitoring data; demographics, agriculture, food habits; environmental pathways and dose estimates.

Finch, S.M.; McMakin, A.H. (comps.)

1991-01-01T23:59:59.000Z

39

Applied Science/Techniques  

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

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

40

MAH-3 Code: Mixed Cells and Markers to Reconstruct Interfaces  

National Nuclear Security Administration (NNSA)

MAH-3 Code: Mixed Cells and Markers to Reconstruct Interfaces MAH-3 Code: Mixed Cells and Markers to Reconstruct Interfaces Nina N. Anuchina, Nikolay S. Es'kov, Viatcheslav A. Gordeyhuck, Oleg M. Kozyrev & Vladimir I. Volkov MAH-3 [1, 2] code simulates nonstationary 3D hydrodynamic multi-component flows with strongly distorted interfaces. Following from a priori information, the system to be simulated is presented by a set of computational domains. In each domain, an unstructured hexahedral mesh is used. 1. Anuchina N.N., Volkov V.J., Gordeychuk V.A., Es'kov N.S., Ilytina O.S., Kozurev O.M. Numerical simulation of Rayleigh-Taylor and Richtmyer-Meshkov instability using MAX-3 code. Journal of Computational and Applied Mathematics, vol. 168 (2004), pp. 11-20. 2. Volkov V.I., Gordeychuk V.A., Es'kov N.S., Kozyrev O.M. Numerical

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

Hanford Environmental Dose Reconstruction Project  

SciTech Connect

The objective of the Hanford Environmental Dose Reconstruction Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The project is being managed and conducted by the Battelle Pacific Northwest Laboratories under contract with the Centers for Disease Control. The independent Technical Steering Panel (TSP) provides technical direction. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed, from release to impact on humans (dose estimates): source terms; environmental transport; environmental monitoring data; demography, food consumption, and agriculture; environmental pathways and dose estimates.

Finch, S.M.; McMakin, A.H. (comps.)

1992-06-01T23:59:59.000Z

42

Applied antineutrino physics workshop.  

Science Conference Proceedings (OSTI)

This workshop is the fourth one of a series that includes the Neutrino Geophysics Conference at Honolulu, Hawaii, which I attended in 2005. This workshop was organized by the Astro-Particle and Cosmology laboratory in the recently opened Condoret building of the University of Paris. More information, including copies of the presentations, on the workshop is available on the website: www.apc.univ-paris7.fr/AAP2007/. The workshop aims at opening neutrino physics to various fields such that it can be applied in geosciences, nuclear industry (reactor and spent fuel monitoring) and non-proliferation. The workshop was attended by over 60 people from Europe, USA, Asia and Brazil. The meeting was also attended by representatives of the Comprehensive nuclear-Test Ban Treaty (CTBT) and the International Atomic Energy Agency (IAEA). The workshop also included a workshop dinner on board of a river boat sailing the Seine river.

Lund, James C.

2008-01-01T23:59:59.000Z

43

Reconstruction of CT Images from Parsimonious Angular ...  

E-Print Network (OSTI)

internal human organs in a non-invasive manner. Any CT scan ...... Relative reconstruction error results for CT data without measurement error types of noisy CT ...

44

Maximal Quotient Rational Reconstruction - CECM - Simon Fraser ...  

E-Print Network (OSTI)

that can be reconstructed is growing at an equal rate. Example: Running .... used in this range because the timings increase consistently by a factor of 3 as the ...

45

Hanford Environmental Dose Reconstruction Project  

Science Conference Proceedings (OSTI)

The objective of the Hanford Environmental Dose Reconstruction (HEDR) Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The TSP consists of experts in environmental pathways, epidemiology, surface-water transport, ground-water transport, statistics, demography, agriculture, meteorology, nuclear engineering, radiation dosimetry, and cultural anthropology. Included are appointed technical members representing the states of Oregon, Washington, and Idaho, a representative of Native American tribes, and an individual representing the public. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed from release to impact on humans (dose estimates): Source terms, environmental transport, environmental monitoring data, demography, food consumption, and agriculture, and environmental pathways and dose estimates. Progress is discussed.

McMakin, A.H.; Cannon, S.D.; Finch, S.M. (comps.)

1992-07-01T23:59:59.000Z

46

Reconstructing and deconstructing dark energy  

SciTech Connect

The acceleration of the expansion of the universe, ascribed to a dark energy, is one of the most intriguing discoveries in science. In addition to precise, systematics controlled data, clear, robust interpretation of the observations is required to reveal the nature of dark energy. Even for the simplest question: is the data consistent with the cosmological constant? there are important subtleties in the reconstruction of the dark energy properties. We discuss the roles of analysis both in terms of the Hubble expansion rate or dark energy density {rho}DE(z) and in terms of the dark energy equation of state w(z), arguing that each has its carefully defined place. Fitting the density is best for learning about the density, but using it to probe the equation of state can lead to instability and bias.

Linder, Eric V.

2004-06-07T23:59:59.000Z

47

Reconstruction of nonlinear wave propagation  

DOE Patents (OSTI)

Disclosed are systems and methods for characterizing a nonlinear propagation environment by numerically propagating a measured output waveform resulting from a known input waveform. The numerical propagation reconstructs the input waveform, and in the process, the nonlinear environment is characterized. In certain embodiments, knowledge of the characterized nonlinear environment facilitates determination of an unknown input based on a measured output. Similarly, knowledge of the characterized nonlinear environment also facilitates formation of a desired output based on a configurable input. In both situations, the input thus characterized and the output thus obtained include features that would normally be lost in linear propagations. Such features can include evanescent waves and peripheral waves, such that an image thus obtained are inherently wide-angle, farfield form of microscopy.

Fleischer, Jason W; Barsi, Christopher; Wan, Wenjie

2013-04-23T23:59:59.000Z

48

CX-009287: Categorical Exclusion Determination | Department of...  

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

Exclusion Determination Reconstructing Paleo-SMT Positions on the Cascadia Margin Using Magnetic Susceptibility CX(s) Applied: A9, B3.6 Date: 09072012 Location(s): New...

49

CX-008687: Categorical Exclusion Determination  

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

Bandon-Rogue Transmission Line Rebuild Project - Fiscal Year 2012 Culvert Replacement and Associated Access Road Reconstruction CX(s) Applied: B1.3 Date: 07/06/2012 Location(s): Oregon Offices(s): Bonneville Power Administration

50

CX-009291: Categorical Exclusion Determination  

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

Reconstructing Paleo-SMT Positions on the Cascadia Margin Using Magnetic Susceptibility CX(s) Applied: B3.6 Date: 09/07/2012 Location(s): Texas Offices(s): National Energy Technology Laboratory

51

Bayesian tomographic reconstruction of microsystems  

SciTech Connect

The microtomography by X ray transmission plays an increasingly dominating role in the study and the understanding of microsystems. Within this framework, an experimental setup of high resolution X ray microtomography was developed at CEA-List to quantify the physical parameters related to the fluids flow in microsystems. Several difficulties rise from the nature of experimental data collected on this setup: enhanced error measurements due to various physical phenomena occurring during the image formation (diffusion, beam hardening), and specificities of the setup (limited angle, partial view of the object, weak contrast).To reconstruct the object we must solve an inverse problem. This inverse problem is known to be ill-posed. It therefore needs to be regularized by introducing prior information. The main prior information we account for is that the object is composed of a finite known number of different materials distributed in compact regions. This a priori information is introduced via a Gauss-Markov field for the contrast distributions with a hidden Potts-Markov field for the class materials in the Bayesian estimation framework. The computations are done by using an appropriate Markov Chain Monte Carlo (MCMC) technique.In this paper, we present first the basic steps of the proposed algorithms. Then we focus on one of the main steps in any iterative reconstruction method which is the computation of forward and adjoint operators (projection and backprojection). A fast implementation of these two operators is crucial for the real application of the method. We give some details on the fast computation of these steps and show some preliminary results of simulations.

Salem, Sofia Fekih; Vabre, Alexandre [CEA, LIST, Laboratoire Images et Dynamique, 91191 Gif-sur-Yvette (France); Mohammad-Djafari, Ali [Laboratoire des Signaux et Systemes, Unite mixte de recherche 8506 (CNRS-Supelec-UPS 11) Supelec, Plateau de Moulon, 3 rue Joliot-Curie, 91191 Gif-sur-Yvette (France)

2007-11-13T23:59:59.000Z

52

Applied and Computational Mathematics Division  

Science Conference Proceedings (OSTI)

Applied and Computational Mathematics Division. Topic Areas. Mathematics; Scientific Computing; Visualization; Quantum Computing. ...

2013-05-09T23:59:59.000Z

53

Finding short structural motifs for re-construction of proteins 3D structure  

Science Conference Proceedings (OSTI)

With a view to find useful building blocks (short structural motifs) for reconstruction of 3D structure of proteins, we propose a modified neural gas learning algorithm that we call structural neural gas (SNG) algorithm. The SNG is applied on a benchmark ... Keywords: Building blocks, Neural gas, Protein folding, Structural motifs, Two-stage-clustering

Nikhil R. Pal; Rupan Panja

2013-02-01T23:59:59.000Z

54

Multiphase flow reconstruction in oil pipelines by capacitance tomography using simulated annealing  

E-Print Network (OSTI)

simulated annealing (SA) algorithm is applied to reconstruct permittivity images of real two-phase gas- oil such as mixing or stirring vessels, fluidized bed reactors, separator tanks and pipelines carrying multiphase in a cylindrical configuration close to the electrodes in order to improve resolution in the calculation

Martin, Roland

55

Applied Optoelectronics | Open Energy Information  

Open Energy Info (EERE)

optical semiconductor devices, packaged optical components, optical subsystems, laser transmitters, and fiber optic transceivers. References Applied Optoelectronics1...

56

Subpixel reconstruction antialiasing for deferred shading  

Science Conference Proceedings (OSTI)

Subpixel Reconstruction Antialiasing (SRAA) combines singlepixel (1x) shading with subpixel visibility to create antialiased images without increasing the shading cost. SRAA targets deferred-shading renderers, which cannot use multisample antialiasing. ... Keywords: antialiasing, deferred shading

Matthäus G. Chajdas; Morgan McGuire; David Luebke

2011-02-01T23:59:59.000Z

57

Phoenix: an epidemic approach to time reconstruction  

Science Conference Proceedings (OSTI)

Harsh deployment environments and uncertain run-time conditions create numerous challenges for postmortem time reconstruction methods. For example, motes often reboot and thus lose their clock state, considering that the majority of mote platforms lack ...

Jayant Gupchup; Douglas Carlson; R?zvan Mus?loiu-E.; Alex Szalay; Andreas Terzis

2010-02-01T23:59:59.000Z

58

Drought Reconstructions for the Continental United States  

Science Conference Proceedings (OSTI)

The development of a 2° lat × 3° long grid of summer drought reconstructions for the continental United States estimated from a dense network of annual tree-ring chronologies is described. The drought metric used is the Palmer Drought Severity ...

Edward R. Cook; David M. Meko; David W. Stahle; Malcolm K. Cleaveland

1999-04-01T23:59:59.000Z

59

3D building reconstruction from LIDAR data  

Science Conference Proceedings (OSTI)

As a fast data acquisition technique, Light Detection and Ranging (LIDAR) can be widely used in many applications, such as visualization, GIS and mobile communication. Since manual surface reconstruction is very costly and time consuming, the development ...

Yuan Luo; Marina L. Gavrilova

2006-05-01T23:59:59.000Z

60

NFRC Procedures for Applied Films  

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

Applied Films Applied Films Last update: 12/10/2013 07:29 PM NFRC now has a procedure for adding applied films to substrates in Optics5 and importing those applied film constructions into WINDOW5 to be used in a whole product calculation. The information presented below is provided to help simulators with this process. Feel free to contact us at WINDOWHelp@lbl.gov with questions or comments. NFRC Applied Film Procedure Applied Film Procedures (approved by NFRC) (PDF file) Approved Applied Film List (IGDB 33.0) (PDF file) NFRC Laminate Procedure Training Powerpoint with Examples (This Powerpoint presentation was used in the NFRC web based training sessions in December 2006 and January 2007) PowerPoint Presentation (PPT file) PowerPoint Presentation (PDF file) Help and Troubleshooting

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

Using projective invariant properties for efficient 3d reconstruction  

Science Conference Proceedings (OSTI)

3D reconstruction over long sequences has been to the main problem of computer vision. Projective reconstruction is known to be an important process for 3D reconstruction in Euclidean space. In this paper, we present a new projective reconstruction algorithm ...

Bo-Ra Seok; Yong-Ho Hwang; Hyun-Ki Hong

2005-07-01T23:59:59.000Z

62

Cerenkov angle and charge reconstruction with the RICH detector of the AMS experiment  

E-Print Network (OSTI)

The Alpha Magnetic Spectrometer (AMS) experiment to be installed on the International Space Station (ISS) will be equipped with a proximity focusing Ring Imaging Cerenkov (RICH) detector, for measurements of particle electric charge and velocity. In this note, two possible methods for reconstructing the Cerenkov angle and the electric charge with the RICH, are discussed. A Likelihood method for the Cerenkov angle reconstruction was applied leading to a velocity determination for protons with a resolution of around 0.1%. The existence of a large fraction of background photons which can vary from event to event, implied a charge reconstruction method based on an overall efficiency estimation on an event-by-event basis.

F. Barao; L. Arruda; J. Borges; P. Goncalves; M. Pimenta; I. Perez

2002-10-18T23:59:59.000Z

63

Tomographic reconstruction of ionospheric electron density based on constrained algebraic reconstruction technique  

Science Conference Proceedings (OSTI)

A constrained algebraic reconstruction technique (CART) is proposed for the tomographic reconstruction of the ionospheric electron density distribution. The method uses a popular two-dimensional multi-point finite difference approximation of the second ... Keywords: ART, Electron density, Ionospheric tomography, TEC

Debao Wen; Sanzhi Liu; Pingying Tang

2010-09-01T23:59:59.000Z

64

Org.Lcsim: Event Reconstruction in Java  

SciTech Connect

Maximizing the physics performance of detectors being designed for the International Linear Collider, while remaining sensitive to cost constraints, requires a powerful, efficient, and flexible simulation, reconstruction and analysis environment to study the capabilities of a large number of different detector designs. The preparation of Letters Of Intent for the International Linear Collider involved the detailed study of dozens of detector options, layouts and readout technologies; the final physics benchmarking studies required the reconstruction and analysis of hundreds of millions of events. We describe the Java-based software toolkit (org.lcsim) which was used for full event reconstruction and analysis. The components are fully modular and are available for tasks from digitization of tracking detector signals through to cluster finding, pattern recognition, track-fitting, calorimeter clustering, individual particle reconstruction, jet-finding, and analysis. The detector is defined by the same xml input files used for the detector response simulation, ensuring the simulation and reconstruction geometries are always commensurate by construction. We discuss the architecture as well as the performance.

Graf, Norman A.; /SLAC

2012-04-19T23:59:59.000Z

65

The AMS-RICH velocity and charge reconstruction  

E-Print Network (OSTI)

The AMS detector, to be installed on the International Space Station, includes a Ring Imaging Cerenkov detector with two different radiators, silica aerogel (n=1.05) and sodium fluoride (n=1.334). This detector is designed to provide very precise measurements of velocity and electric charge in a wide range of cosmic nuclei energies and atomic numbers. The detector geometry, in particular the presence of a reflector for acceptance purposes, leads to complex Cerenkov patterns detected in a pixelized photomultiplier matrix. The results of different reconstruction methods applied to test beam data as well as to simulated samples are presented. To ensure nominal performances throughout the flight, several detector parameters have to be carefully monitored. The algorithms developed to fulfill these requirements are presented. The velocity and charge measurements provided by the RICH detector endow the AMS spectrometer with precise particle identification capabilities in a wide energy range. The expected performances on light isotope separation are discussed.

F. Barao; M. Aguilar-Benitez; L. Arruda; B. Baret; A. Barrau; G. Barreira; E. Belmont; J. Berdugo; J. Borges; M. Buenerd; D. Casadei; J. Casaus; E. Cortina; M. Costado; D. Crespo; C. Delgado; C. Diaz; L. Derome; P. Goncalves; R. Garcia-Lopez; C. de la Guia; A. Herrero; E. Lanciotti; G. Laurenti; A. Malinin; C. Mana; J. Marin; M. Mangin-Brinet; G. Martinez; A. Menchaca-Rocha; C. Palomares; R. Pereira; M. Pimenta; A. Putze; Y. Sallaz-Damaz; E. S. Seo; I. Sevilla; A. Torrento; M. Vargas-Trevino; O. Veziant

2007-09-13T23:59:59.000Z

66

SUN (re)construction | Open Energy Information  

Open Energy Info (EERE)

SUN (re)construction SUN (re)construction Jump to: navigation, search Logo: SUN (re)construction Name SUN (re)construction Address 1351 Harker Avenue Place Palo Alto, California Zip 94301 Sector Efficiency Product Zero-net and grid-neutral buildings Year founded 2009 Number of employees 1-10 Phone number 805.679.3616 Website http://www.sunreconstruction.c Coordinates 37.446933°, -122.141049° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.446933,"lon":-122.141049,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

67

On image reconstruction from multiscale top points  

Science Conference Proceedings (OSTI)

Image reconstruction from a fiducial collection of scale space interest points and attributes (e.g. in terms of image derivatives) can be used to make the amount of information contained in them explicit. Previous work by various authors includes both ...

Frans Kanters; Martin Lillholm; Remco Duits; Bart Janssen; Bram Platel; Luc Florack; Bart ter Haar Romeny

2005-04-01T23:59:59.000Z

68

Reconstructing the Texas Flood of 1938  

E-Print Network (OSTI)

Reconstructing the Texas Flood of 1938 Jude Kastens1 | Kevin Dobbs1 | Melinda Luna2 1Kansas Biological Survey, University of Kansas, Lawrence, KS 2Texas Natural Resources Information System, Texas Water Development Board, Austin, TX 2010 Texas GIS Forum October 28, 2010 Austin, TX Email: jkastens

Peterson, Blake R.

69

CT reconstruction from limited projection angles  

SciTech Connect

When the available CT projection data are incomplete, there exists a null space in the space of possible reconstructions about which the data provide no information. Deterministic CT reconstructions are impotent in regard to this null space. Furthermore, it is shown that consistency conditions based on projection moments do not provide the missing projections. When the projection data consist of a set of parallel projections that do not encompass a complete 180/sup 0/ rotation, the null space corresponds to a missing sector in the Fourier transform of the original 2-D function. The long-range streak artifacts created by the missing sector can be reduced by attenuating the Fourier transform of the reconstruction smoothly to zero at the sector boundary. It is shown that the Fourier transform of a reconstruction obtained under a maximum entropy constraint is nearly zero in the missing sector. Hence, maximum entropy does not overcome the basic lack of information. It is suggested that some portion of the null space might be filled in by use of a priori knowledge of the type of image expected.

Hanson, K.M.

1982-01-01T23:59:59.000Z

70

BNL | Accelerators for Applied Research  

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

Accelerators for Applied Research Accelerators for Applied Research Brookhaven National Lab operates several accelerator facilities dedicated to applied research. These facilities directly address questions and concerns on a tremendous range of fields, including medical imaging, cancer therapy, computation, and space exploration. Leading scientists lend their expertise to these accelerators and offer crucial assistant to collaborating researchers, pushing the limits of science and technology. Interested in gaining access to these facilities for research? See the contact number listed for each facility. RHIC tunnel Brookhaven Linac Isotope Producer The Brookhaven Linac Isoptope Producer (BLIP)-positioned at the forefront of research into radioisotopes used in cancer treatment and diagnosis-produces commercially unavailable radioisotopes for use by the

71

On the interactive 3D reconstruction of Iberian vessels  

Science Conference Proceedings (OSTI)

Reconstructing vessels from sherds is a complex task, specially for hand made pottery. That is the case of the Iberian vessels. The reconstruction process can be done in three steps: orientation of the sherd, computing the symmetry axis and detecting ...

F. J. Melero; J. C. Torres; A. León

2003-11-01T23:59:59.000Z

72

Recent methods for reconstructing surfaces from multiple images  

Science Conference Proceedings (OSTI)

Many objects can be mathematically represented as smooth surfaces with arbitrary topology, and smooth surface reconstruction from images could be cast into a variational problem. The main difficulties are the intrinsic ill-posedness of the reconstruction, ...

Gang Zeng; Maxime Lhuillier; Long Quan

2004-05-01T23:59:59.000Z

73

3D reconstruction of emission and absorption in planetary nebulae  

Science Conference Proceedings (OSTI)

This paper addresses the problem of reconstructing the 3D structure of planetary nebulae from 2D observations. Assuming axial symmetry, our method jointly reconstructs the distribution of dust and ionized gas in the nebulae from observations at two different ...

Andrei Lin?u; Hendrik P. A. Lensch; Marcus Magnor; Sascha El-Abed; Hans-Peter Seidel

2007-09-01T23:59:59.000Z

74

A Surrogate Ensemble Study of Sea Level Reconstructions  

Science Conference Proceedings (OSTI)

This study investigates the possibility of reconstructing past global mean sea levels. Reconstruction methods rely on historical measurements from tide gauges combined with knowledge about the spatial covariance structure of the sea level field ...

Bo Christiansen; T. Schmith; P. Thejll

2010-08-01T23:59:59.000Z

75

Estimating Monthly Precipitation Reconstruction Uncertainty Beginning in 1900  

Science Conference Proceedings (OSTI)

Uncertainty estimates are computed for a statistical reconstruction of global monthly precipitation that was developed in an earlier publication. The reconstruction combined the use of spatial correlations with gauge precipitation and correlations ...

Thomas M. Smith; Samuel S. P. Shen; Li Ren; Phillip A. Arkin

2013-06-01T23:59:59.000Z

76

Historical SAM Variability. Part I: Century-Length Seasonal Reconstructions  

Science Conference Proceedings (OSTI)

Seasonal reconstructions of the Southern Hemisphere annular mode (SAM) index are derived to extend the record before the reanalysis period, using station sea level pressure (SLP) data as predictors. Two reconstructions using different predictands ...

Julie M. Jones; Ryan L. Fogt; Martin Widmann; Gareth J. Marshall; Phil D. Jones; Martin Visbeck

2009-10-01T23:59:59.000Z

77

CRC handbook of applied thermodynamics  

Science Conference Proceedings (OSTI)

The emphasis of this book is on applied thermodynamics, featuring the stage of development of a process rather than the logical development of thermodynamic principles. It is organized according to the types of problems encountered in industry, such as probing research, process assessment, and process development. The applied principles presented can be used in most areas of industry including oil and gas production and processing, chemical processing, power generation, polymer production, food processing, synthetic fuels production, specialty chemicals and pharmaceuticals production, bioengineered processes, etc.

Palmer, D.A. (Amoco Chemical Corp., Naperville, IL (USA). Research and Development Dept.)

1987-01-01T23:59:59.000Z

78

Voxel-Based Dose Reconstruction for Total Body Irradiation With Helical TomoTherapy  

SciTech Connect

Purpose: We have developed a megavoltage CT (MVCT)-based dose reconstruction strategy for total body irradiation (TBI) with helical TomoTherapy (HT) using a deformable registration model to account for the patient's interfraction changes. The proposed technique serves as an efficient tool for delivered dose verification and, potentially, plan adaptation. Methods and Materials: Four patients with acute myelogenous leukemia treated with TBI using HT were selected for this study. The prescription was 12 Gy, 2 Gy/fraction, twice per day, given at least 6 h apart. The original plan achieved coverage of 80% of the clinical target volume (CTV) by the 12 Gy isodose surface. MVCTs were acquired prior to each treatment. Regions of interest were contoured on each MVCT. The dose for each fraction was calculated based on the MVCT using the HT planned adaptive station. B-spline deformable registration was conducted to establish voxel-to-voxel correspondence between the MVCT and the planning CT. The resultant deformation vector was employed to map the reconstructed dose from each fraction to the same point as the plan dose, and a voxel-to-voxel summed dose from all six fractions was obtained. The reconstructed dose distribution and its dosimetric parameters were compared with those of the original treatment plan. Results: While changes in CTV contours occurred in all patients, the reconstructed dose distribution showed that the dose-volume histogram for CTV coverage was close (<1.5%) to that of the original plan. For sensitive structures, the differences between the reconstructed and the planned doses were less than 3.0%. Conclusion: Voxel-based dose reconstruction strategy that takes into account interfraction anatomical changes using MVCTs is a powerful tool for treatment verification of the delivered doses. This proposed technique can also be applied to adaptive TBI therapy using HT.

Chao Ming, E-mail: mchao@uams.edu [Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205-7199 (United States); Penagaricano, Jose; Yan Yulong; Moros, Eduardo G.; Corry, Peter; Ratanatharathorn, Vaneerat [Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205-7199 (United States)

2012-04-01T23:59:59.000Z

79

California Energy Commission Apply Today!  

E-Print Network (OSTI)

photovoltaic project in the future. Peak Demand Savings: 95 kW Energy Savings: 1,510,849 kWh Annual Energy CostCalifornia Energy Commission Apply Today! "The College implemented all of the recommended projects Programs Office (916) 654-4147 pubprog@energy.state.ca.us "CEC financing allowed us to install many

80

implementing bioenergy applied research & development  

E-Print Network (OSTI)

1 A Northern Centre for Renewable Energy implementing bioenergy applied research & development plant measures to become carbon neutral and operate on renewable energy. UNBC is uniquely positioned for Climate Solutions, and UNBC. The Green University Centre will be a model of energy efficiency

Northern British Columbia, University of

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

Reconstruction of quasi developable surfaces from ribbon curves  

Science Conference Proceedings (OSTI)

This paper deals with the acquisition and reconstruction of physical surfaces by mean of a ribbon device equipped with micro-sensors, providing geodesic curves running on the surface. The whole process involves the reconstruction of these 3D ribbon curves ... Keywords: Capture and reconstruction of surfaces, Coons filling methods, Developable and quasi developable surfaces, Geodesic curve, Hermite interpolation

Mathieu Huard; Nathalie Sprynski; Nicolas Szafran; Luc Biard

2013-07-01T23:59:59.000Z

82

Improved Methods for PCA-Based Reconstructions: Case Study Using the Steig et al. (2009) Antarctic Temperature Reconstruction  

Science Conference Proceedings (OSTI)

A detailed analysis is presented of a recently published Antarctic temperature reconstruction that combines satellite and ground information using a regularized expectation–maximization algorithm. Though the general reconstruction concept has ...

Ryan O’Donnell; Nicholas Lewis; Steve McIntyre; Jeff Condon

2011-04-01T23:59:59.000Z

83

Vehicle Technologies Office: Applied Battery Research  

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

Applied Battery Research to someone by E-mail Share Vehicle Technologies Office: Applied Battery Research on Facebook Tweet about Vehicle Technologies Office: Applied Battery...

84

Demosaicing: image reconstruction from color ccd samples  

E-Print Network (OSTI)

A simplified color image formation model is used to construct an algorithm for image reconstruction from CCD sensors samples. The proposed method involves two successive steps. The first is motivated by Cok’s template matching technique, while the second step uses steerable inverse diffusion in color. Classical linear signal processing techniques tend to oversmooth the image and result in noticeable color artifacts along edges and sharp features. The question is how should the different color channels support each other to form the best possible reconstruction. Our answer is to let the edges support the color information, and the color channels support the edges, and thereby achieve better perceptual results than those that are bounded by the sampling theoretical limit.

Ron Kimmel

1999-01-01T23:59:59.000Z

85

Reconstructing Spatial Distributions from Anonymized Locations  

SciTech Connect

Devices such as mobile phones, tablets, and sensors are often equipped with GPS that accurately report a person's location. Combined with wireless communication, these devices enable a wide range of new social tools and applications. These same qualities, however, leave location-aware applications vulnerable to privacy violations. This paper introduces the Negative Quad Tree, a privacy protection method for location aware applications. The method is broadly applicable to applications that use spatial density information, such as social applications that measure the popularity of social venues. The method employs a simple anonymization algorithm running on mobile devices, and a more complex reconstruction algorithm on a central server. This strategy is well suited to low-powered mobile devices. The paper analyzes the accuracy of the reconstruction method in a variety of simulated and real-world settings and demonstrates that the method is accurate enough to be used in many real-world scenarios.

Horey, James L [ORNL; Forrest, Stephanie [University of New Mexico, Albuquerque; Groat, Michael [University of New Mexico, Albuquerque

2012-01-01T23:59:59.000Z

86

Hanford Environmental Dose Reconstruction Project. Monthly report  

Science Conference Proceedings (OSTI)

The objective of the Hanford Environmental Dose Reconstruction (HEDR) Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The independent Technical Steering Panel (TSP) provides technical direction. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed from release to impact on humans (dose estimates):Source Terms, Environmental Transport, Environmental Monitoring Data, Demography, Food Consumption, and Agriculture, and Environmental Pathways and Dose Estimates.

Cannon, S.D.; Finch, S.M. [comps.

1992-10-01T23:59:59.000Z

87

Hanford Environmental Dose Reconstruction Project. Monthly report  

SciTech Connect

The objective of the Hanford Environmental Dose Reconstruction Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed, from release to impact on humans (dose estimates): Source terms, environmental transport, environmental monitoring data, demography, food consumption, and agriculture, and environmental pathways and dose estimates.

Finch, S.M.; McMakin, A.H. [comps.

1992-04-01T23:59:59.000Z

88

THREE ESSAYS ON APPLIED ECONOMICS  

E-Print Network (OSTI)

In this dissertation three essays were presented. In the first two essays we measure the consumer welfare changes caused by U.S. meat price changes. In the third essay the dynamic structure of international gasoline prices using the time series methodology is investigated. In chapter II, we investigate the U.S. consumer behavior on meat consumption depending on a linear expenditure system (LES), and then we simulate the welfare effects of a set of price changes on the U.S. meat consumption. The simulation results show that the amount of consumer welfare change for each meat is not same across the meats under the same percentage change of price. The simulation results also show that when all the prices are doubled the total amount of CV reaches almost the same amount of current total quarterly expenditures for the three meats. In chapter III, we apply the compensating variation (CV) approach for the measurement of consumer welfare losses associated with beef price changes. We applied the long-run cointegrating relationship in vector error correction model (VECM) to estimate the Marshallian demand function. Apparently, the use of long-run cointegration in VECM in deriving the direct Marshallian demand function to measure the consumer welfare change is the first attempt in the literature. This is one of the contributions of the study. The simulation results show that the amount of consumer welfare change for beef is compatible with the one derived from LES methodology. In chapter IV, an empirical framework to summarize the interdependence of four international gasoline markets (New York, U.S. Gulf Coast, Rotterdam and Singapore) is presented. For that purpose, we employ a structural VECM and directed acyclic graphs (DAGs). To solve the identification problem in structural VECM, we apply DAGs derived from contemporaneous VECM innovations. The impulse response functions show that the time period in which a shock in a market affects the other market is very short. Forecast error variance decompositions (FEVD) shows that in all markets, except the U.S. Gulf Coast market, current and past shocks in their own market explained the most of the volatility in their own market in the Short-run.

Shin, Sang-Cheol

2008-08-01T23:59:59.000Z

89

Applied Materials | Open Energy Information  

Open Energy Info (EERE)

Materials Materials Jump to: navigation, search Name Applied Materials Address 3050 Bowers Avenue Place Santa Clara, California Zip 95054 Sector Solar Stock Symbol AMAT Website http://www.appliedmaterials.co Coordinates 37.3775749°, -121.9794416° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.3775749,"lon":-121.9794416,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

90

Angular Reconstruction of a Lead Scintillating-Fiber Sandwiched Electromagnetic Calorimeter  

E-Print Network (OSTI)

A new method called Neighbor Cell Deposited Energy Ratio (NCDER) is proposed to reconstruct incidence position in a single layer for a 3-dimensional imaging electromagnetic calorimeter (ECAL).This method was applied to reconstruct the ECAL test beam data for the Alpha Magnetic Spectrometer-02 (AMS-02). The results show that this method can achieve an angular resolution of 7.36\\pm 0.08 / \\sqrt(E) \\oplus 0.28 \\pm 0.02 degree in the determination of the photons direction, which is much more precise than that obtained with the commonly-adopted Center of Gravity(COG) method (8.4 \\pm 0.1 /sqrt(E) \\oplus 0.8\\pm0.3 degree). Furthermore, since it uses only the properties of electromagnetic showers, this new method could also be used for other type of fine grain sampling calorimeters.

Zu-Hao Li; Wei-Wei Xu; Ling-Yu Wang; Cheng Zhang; Zhi-Cheng Tang; Qi Yan; Min Yang; Yu-Sheng Lu; Guo-Ming Chen; He-Sheng Chen

2013-08-26T23:59:59.000Z

91

Reconstructing Quintom from Ricci Dark Energy  

E-Print Network (OSTI)

The holographic dark energy with Ricci scalar as IR cutoff called Ricci dark energy(RDE) probes the nature of dark energy with respect to the holographic principle of quantum gravity theory. The scalar field dark energy models like quintom are often viewed as effective description of the underlying field theory of dark energy. In this letter, we assume RDE model as the underlying field theory to find how the generalized ghost condensate model(GGC) that can easily realize quintom behavior can be used to effectively describe it and reconstruct the function $h(\\phi)$ of the generalized ghost condensate model.

Chao-Jun Feng

2008-10-15T23:59:59.000Z

92

Industrial tomography applied to reactor safety  

SciTech Connect

Work has begun which explores the use of Computed Axial Tomography (CAT), boundary detection, and internal surface reconstruction techniques in industrial nondestructive testing applications. This initial work is intended to inform the reader of the existence and interrelated nature of these techniques through the use of a realistic simulation of an industrial inspection problem.

Kruger, R.P.

1977-01-01T23:59:59.000Z

93

EERE Postdoctoral Research Awards: How to Apply  

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

How to Apply to someone by E-mail Share EERE Postdoctoral Research Awards: How to Apply on Facebook Tweet about EERE Postdoctoral Research Awards: How to Apply on Twitter Bookmark...

94

Weatherization and Intergovernmental Program: Apply for Weatherization  

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

Apply Apply for Weatherization Assistance to someone by E-mail Share Weatherization and Intergovernmental Program: Apply for Weatherization Assistance on Facebook Tweet about Weatherization and Intergovernmental Program: Apply for Weatherization Assistance on Twitter Bookmark Weatherization and Intergovernmental Program: Apply for Weatherization Assistance on Google Bookmark Weatherization and Intergovernmental Program: Apply for Weatherization Assistance on Delicious Rank Weatherization and Intergovernmental Program: Apply for Weatherization Assistance on Digg Find More places to share Weatherization and Intergovernmental Program: Apply for Weatherization Assistance on AddThis.com... Plans, Implementation, & Results Weatherization Assistance Program Weatherization Services

95

Vehicle Technologies Office: Applied Battery Research  

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

Applied Battery Research Applied battery research addresses the barriers facing the lithium-ion systems that are closest to meeting the technical energy and power requirements for...

96

NETL: Methane Hydrates - DOE/NETL Projects - Reconstructing Paleo...  

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

to track diagenetic changes that are associated with the anaerobic oxidation of methane. To achieve this goal, this project aims to (1) reconstruct the paleo-positions of...

97

Reconstructions: nine movements for solo soprano, chorus, and wind ensemble.  

E-Print Network (OSTI)

??Reconstructions is a nine-movement composition for solo soprano, chorus, and wind ensemble using texts from several of Emily Dickinson's poems. The soloist represents the main… (more)

Makela, Steven L.

1999-01-01T23:59:59.000Z

98

Reconstruction of 3D Points From Uncalibrated Underwater Video.  

E-Print Network (OSTI)

??This thesis presents a 3D reconstruction software pipeline that is capable of generating point cloud data from uncalibrated underwater video. This research project was undertaken… (more)

Cavan, Neil

2011-01-01T23:59:59.000Z

99

Building model reconstruction from lidar data and aerial photographs.  

E-Print Network (OSTI)

??The objective of this research is to reconstruct 3D building models from imagery and LIDAR data. The images used are stereo aerial photographs with known… (more)

Ma, Ruijin

2005-01-01T23:59:59.000Z

100

Reconstructing 3D buildings from Lidar data  

E-Print Network (OSTI)

Accurate 3D surface models in urban areas are essential for a variety of applications, such as visualization, GIS, and mobile communications. Since manual surface reconstruction is very costly and time consuming, the development of automated algorithms is of great importance. On the other hand LIDAR data is a relatively new technology for obtaining Digital Surface Models (DSM) of the earth’s surface. It is a fast method for sampling the earth’s surface with a high density and high point accuracy. In this paper a new approach for building extraction from LIDAR data is presented. The approach utilizes the geometric properties of urban buildings for the reconstruction of the building wire-frames from the LIDAR data. We start by finding the candidate building points that are used to populate a plane parameter space. After filling the plane parameter space, we find the planes that can represent the building roof surfaces. Roof regions are then extracted and the plane parameters are refined using a robust estimation technique and the geometric constraint between adjacent roof facets. The region boundaries are extracted and used to form the building wireframes. The algorithm is tested on two buildings from a locally acquired LIDAR data sets. The test results show some success in extracting urban area buildings. 1.

Ahmed F. Elaksher; James S. Bethel

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

SPARSE ACQUISITION AND RECONSTRUCTION FOR SOME COMPUTER VISION PROBLEMS  

E-Print Network (OSTI)

Sparse representation, acquisition and reconstruction of signals guided by theory of Compressive Sensing (CS) has become an active research research topic over the last few years. Sparse representations effectively capture the idea of parsimony enabling novel acquisition schemes including sub-Nyquist sampling. Ideas from CS have had significant impact on well established fields such as signal acquisition, machine learning and statistics and have also inspired new areas of research such as low rank matrix completion. In this dissertation we apply CS ideas to low-level computer vision problems. The contribution of this dissertation is to show that CS theory is an important addition to the existing computational toolbox in computer vision and pattern recognition, particularly in data representation and processing. Additionally, in each of the problems we show how sparse representation helps in improved modeling of the underlying data leading to novel applications and better understanding of existing problems. In our work, the impact of CS is most felt in the acquisition of videos with novel camera designs. We build prototype cameras with slow sensors capable ofcapturing at an order of magnitude higher temporal resolution. First, we propose

Nagilla Dikpal Reddy

2011-01-01T23:59:59.000Z

102

DARPA Learning Applied to Ground Robots (LAGR)  

Science Conference Proceedings (OSTI)

DARPA Learning Applied to Ground Robots (LAGR) Project (Concluded). Summary: The National Institute of Standards ...

2012-01-04T23:59:59.000Z

103

Hanford Environmental Dose Reconstruction Project monthly report  

Science Conference Proceedings (OSTI)

The objective of the Hanford Environmental Dose Reconstruction MDR) Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The TSP consists of experts in envirorunental pathways. epidemiology, surface-water transport, ground-water transport, statistics, demography, agriculture, meteorology, nuclear engineering. radiation dosimetry. and cultural anthropology. Included are appointed members representing the states of Oregon, Washington, and Idaho, a representative of Native American tribes, and an individual representing the public. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed from release to impact on humans (dose estimates): Source Terms; Environmental Transport; Environmental Monitoring Data Demography, Food Consumption, and Agriculture; and Environmental Pathways and Dose Estimates.

McMakin, A.H., Cannon, S.D.; Finch, S.M. [comps.

1992-09-01T23:59:59.000Z

104

Hanford Environmental Dose Reconstruction Project. Monthly report  

Science Conference Proceedings (OSTI)

The objective of the Hanford Environmental Dose Reconstruction (HEDR) Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The TSP consists of experts in environmental pathways, epidemiology, surface-water transport, ground-water transport, statistics, demography, agriculture, meteorology, nuclear engineering, radiation dosimetry, and cultural anthropology. Included are appointed technical members representing the states of Oregon, Washington, and Idaho, a representative of Native American tribes, and an individual representing the public. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed from release to impact on humans (dose estimates): Source terms, environmental transport, environmental monitoring data, demography, food consumption, and agriculture, and environmental pathways and dose estimates. Progress is discussed.

McMakin, A.H.; Cannon, S.D.; Finch, S.M. [comps.

1992-07-01T23:59:59.000Z

105

Probabilistic image reconstruction for radio interferometers  

E-Print Network (OSTI)

We present a novel, general-purpose method for deconvolving and denoising images from gridded radio interferometric visibilities using Bayesian inference based on a Gaussian process model. The method automatically takes into account incomplete coverage of the uv-plane and mode coupling due to the beam. Our method uses Gibbs sampling to efficiently explore the full posterior distribution of the underlying signal image given the data. We use a set of widely diverse mock images with a realistic interferometer setup and level of noise to assess the method. Compared to results from a proxy for the CLEAN method we find that in terms of RMS error and signal-to-noise ratio our approach performs better than traditional deconvolution techniques, regardless of the structure of the source image in our test suite. Our implementation scales as O(np log np), provides full statistical and uncertainty information of the reconstructed image, requires no supervision, and provides a robust, consistent framework for incorporating...

Sutter, P M; McEwen, Jason D; Bunn, Emory F; Karakci, Ata; Korotkov, Andrei; Timbie, Peter; Tucker, Gregory S; Zhang, Le

2013-01-01T23:59:59.000Z

106

Reconstructing phylogenetic trees of prokaryote genomes by randomly sampling oligopeptides  

Science Conference Proceedings (OSTI)

In this paper, we propose a method for reconstructing phylogenetic trees of a given set of prokaryote organisms by randomly sampling relatively small oligopeptides of a fixed length from their complete proteomes. For each of the organisms, a vector of ... Keywords: bioinformatics, evolution, microbial organisms, oligopeptide frequency, phylogenetic tree reconstruction, phylogenetic trees, prokaryote genomes, random sampling

Osamu Maruyama; Akiko Matsuda; Satoru Kuhara

2005-12-01T23:59:59.000Z

107

Fully three-dimensional tomographic evolutionary reconstruction in nuclear medicine  

Science Conference Proceedings (OSTI)

3-D reconstruction in Nuclear Medicine imaging using completeMonte-Carlo simulation of trajectories usually requires high computingpower. We are currently developing a Parisian Evolution Strategy in order toreduce the computing cost of reconstruction ... Keywords: artificial evolution, compton scattering, computer tomography, emission tomography, flyalgorithm, nuclear medicine, parisian evolution

Aurélie Bousquet; Jean Louchet; Jean-Marie Rocchisani

2007-10-01T23:59:59.000Z

108

Trajectory fusion for three-dimensional volume reconstruction  

Science Conference Proceedings (OSTI)

We address the 3D volume reconstruction problem from depth adjacent sub-volumes acquired by a confocal laser scanning microscope (CLSM). Our goal is to align the sub-volumes by estimating a set of optimal global transformations that preserve morphological ... Keywords: 3D Volume reconstruction, Confocal laser scanning microscopy, Extrapolation, Residual minimization, Sub-volume registration, Trajectory fusion

Sang-Chul Lee; Peter Bajcsy

2008-04-01T23:59:59.000Z

109

Structural algorithm to reservoir reconstruction using passive seismic data (synthetic example)  

SciTech Connect

Using of passive seismic observations to detect a reservoir is a new direction of prospecting and exploration of hydrocarbons. In order to identify thin reservoir model we applied the modification of Gaussian elimination method in conditions of incomplete synthetic data. Because of the singularity of a matrix conventional method does not work. Therefore structural algorithm has been developed by analyzing the given model as a complex model. Numerical results demonstrate of its advantage compared with usual way of solution. We conclude that the gas reservoir is reconstructed by retrieving of the image of encasing shale beneath it.

Smaglichenko, Tatyana A.; Volodin, Igor A.; Lukyanitsa, Andrei A.; Smaglichenko, Alexander V.; Sayankina, Maria K. [Oil and Gas Research Institute, Russian Academy of Science, Gubkina str.3, 119333, Moscow (Russian Federation); Faculty of Computational Mathematics and Cybernetics, M.V. Lomonosov Moscow State University, Leninskie gory, 1, str.52,Second Teaching Building.119991 Moscow (Russian Federation); Shmidt's Institute of Physics of the Earth, Russian Academy of Science, Bolshaya Gruzinskaya str. 10, str.1, 123995 Moscow (Russian Federation); Oil and Gas Research Institute, Russian Academy of Science, Gubkina str.3, 119333, Moscow (Russian Federation)

2012-09-26T23:59:59.000Z

110

Structural algorithm to reservoir reconstruction using passive seismic data (synthetic example)  

Science Conference Proceedings (OSTI)

Using of passive seismic observations to detect a reservoir is a new direction of prospecting and exploration of hydrocarbons. In order to identify thin reservoir model we applied the modification of Gaussian elimination method in conditions of incomplete synthetic data. Because of the singularity of a matrix conventional method does not work. Therefore structural algorithm has been developed by analyzing the given model as a complex model. Numerical results demonstrate of its advantage compared with usual way of solution. We conclude that the gas reservoir is reconstructed by retrieving of the image of encasing shale beneath it.

2012-01-01T23:59:59.000Z

111

Reconstruction of Neutral Hydrogen Density Profiles in HANBIT Magnetic Mirror Device Using Bayesian Probability Theory  

SciTech Connect

Hydrogen is the main constitute of plasmas in HANBIT magnetic mirror device, therefore, measurement of the emission from excited levels of hydrogen atoms is an important diagnostic tool. From the emissivity of H{sub {alpha}} radiation one can derive quantities such as the neutral hydrogen density and the source rate. An unbiased and consistent probability theory based approach within the framework of Bayesian inference is applied to the reconstruction of H{sub {alpha}} emissivity profiles and hydrogen neutral density profiles in HANBIT magnetic mirror device.

Yoon, J.-S.; Seo, D.-C.; Na, H.-K.; Yoon, S.-W. [Korea Basic Science Institute (Korea, Republic of)

2005-01-15T23:59:59.000Z

112

Error Detection, Factorization and Correction for Multi-View Scene Reconstruction from Aerial Imagery  

SciTech Connect

Scene reconstruction from video sequences has become a prominent computer vision research area in recent years, due to its large number of applications in fields such as security, robotics and virtual reality. Despite recent progress in this field, there are still a number of issues that manifest as incomplete, incorrect or computationally-expensive reconstructions. The engine behind achieving reconstruction is the matching of features between images, where common conditions such as occlusions, lighting changes and texture-less regions can all affect matching accuracy. Subsequent processes that rely on matching accuracy, such as camera parameter estimation, structure computation and non-linear parameter optimization, are also vulnerable to additional sources of error, such as degeneracies and mathematical instability. Detection and correction of errors, along with robustness in parameter solvers, are a must in order to achieve a very accurate final scene reconstruction. However, error detection is in general difficult due to the lack of ground-truth information about the given scene, such as the absolute position of scene points or GPS/IMU coordinates for the camera(s) viewing the scene. In this dissertation, methods are presented for the detection, factorization and correction of error sources present in all stages of a scene reconstruction pipeline from video, in the absence of ground-truth knowledge. Two main applications are discussed. The first set of algorithms derive total structural error measurements after an initial scene structure computation and factorize errors into those related to the underlying feature matching process and those related to camera parameter estimation. A brute-force local correction of inaccurate feature matches is presented, as well as an improved conditioning scheme for non-linear parameter optimization which applies weights on input parameters in proportion to estimated camera parameter errors. Another application is in reconstruction pre-processing, where an algorithm detects and discards frames that would lead to inaccurate feature matching, camera pose estimation degeneracies or mathematical instability in structure computation based on a residual error comparison between two different match motion models. The presented algorithms were designed for aerial video but have been proven to work across different scene types and camera motions, and for both real and synthetic scenes.

Hess-Flores, M

2011-11-10T23:59:59.000Z

113

Oxidation Kinetics Modeling Applying Phase Field Approach  

Science Conference Proceedings (OSTI)

Presentation Title, Oxidation Kinetics Modeling Applying Phase Field Approach ... chemical reaction rates will increase exponentially and environmental attack ...

114

Applied Chemicals and Materials Staff Directory  

Science Conference Proceedings (OSTI)

Applied Chemicals and Materials Staff Directory. ... accept either a name, organizational name, or ... MML Organization. Contact. Material Measurement ...

2012-10-12T23:59:59.000Z

115

Researcher, Los Alamos National Laboratory - Applied Physics...  

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

Applied Physics Division | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response...

116

CHEMICAL ENGINEERING SCHOOL OF ENGINEERING & APPLIED SCIENCE  

E-Print Network (OSTI)

30 CHEMICAL ENGINEERING SCHOOL OF ENGINEERING & APPLIED SCIENCE MIAMI UNIVERSITY 2005-2006 The program leads to the degree, Bachelor of Science in Applied Science, with a major in Chemical Engineering The chemical engineering students learn to apply the concepts of chemistry, biochemistry and biological science

Dollar, Anna

117

Heuristic optimization in penumbral image for high resolution reconstructed image  

SciTech Connect

Penumbral imaging is a technique which uses the fact that spatial information can be recovered from the shadow or penumbra that an unknown source casts through a simple large circular aperture. The size of the penumbral image on the detector can be mathematically determined as its aperture size, object size, and magnification. Conventional reconstruction methods are very sensitive to noise. On the other hand, the heuristic reconstruction method is very tolerant of noise. However, the aperture size influences the accuracy and resolution of the reconstructed image. In this article, we propose the optimization of the aperture size for the neutron penumbral imaging.

Azuma, R.; Nozaki, S. [Transdisciplinary Research Organization for Subtropics and Island Studies, University of the Ryukyus, Okinawa 903-0213 (Japan); Fujioka, S. [Institute of Laser Engineering, Osaka University, Osaka 565-0871 (Japan); Chen, Y. W. [College of Information Science and Engineering, Ritsumeikan University, Shiga 525-8577 (Japan); Namihira, Y. [Faculty of Engineering, University of the Ryukyus, Okinawa 903-0213 (Japan)

2010-10-15T23:59:59.000Z

118

Reconstruction of modified gravity with ghost dark energy models  

E-Print Network (OSTI)

In this work, we reconstruct the $f(R)$ modified gravity for different ghost and generalized ghost dark energy models in FRW flat universe, which describe the accelerated expansion of the universe. The equation of state of reconstructed $f(R)$ - gravity has been calculated. We show that the corresponding $f(R)$ gravity of ghost dark energy model can behave like phantom or quintessence. We also show that the equation of state of reconstructed $f(R)$ gravity for generalized ghost model can transit from quintessence regime to the phantom regime as indicated by recent observations.

Khodam-Mohammadi, A

2012-01-01T23:59:59.000Z

119

Weak Lensing Mass Reconstruction of the Galaxy Cluster Abell 209  

E-Print Network (OSTI)

Weak lensing applied to deep optical images of clusters of galaxies provides a powerful tool to reconstruct the distribution of the gravitating mass associated to these structures. We use the shear signal extracted by an analysis of deep exposures of a region centered around the galaxy cluster Abell 209, at redshift z=0.2, to derive both a map of the projected mass distribution and an estimate of the total mass within a characteristic radius. We use a series of deep archival R-band images from CFHT-12k, covering an area of 0.3 deg^2. We determine the shear of background galaxy images using a new implementation of the modified Kaiser-Squires-Broadhurst pipeline for shear determination, which we has been tested against the ``Shear TEsting Program 1 and 2'' simulations. We use mass aperture statistics to produce maps of the 2 dimensional density distribution, and parametric fits using both Navarro-Frenk-White (NFW) and singular-isothermal-sphere profiles to constrain the total mass. The projected mass distribution shows a pronounced asymmetry, with an elongated structure extending from the SE to the NW. This is in general agreement with the optical distribution previously found by other authors. A similar elongation was previously detected in the X-ray emission map, and in the distribution of galaxy colours. The circular NFW mass profile fit gives a total mass of M_{200} = 7.7^{+4.3}_{-2.7} 10^{14} solar masses inside the virial radius r_{200} = 1.8\\pm 0.3 Mpc. The weak lensing profile reinforces the evidence for an elongated structure of Abell 209, as previously suggested by studies of the galaxy distribution and velocities.

S. Paulin-Henriksson; V. Antonuccio-Delogu; C. P. Haines; M. Radovich; A. Mercurio; U. Becciani

2007-01-28T23:59:59.000Z

120

Reconstruction of ECG signals in presence of corruption  

E-Print Network (OSTI)

We present an approach to identifying and reconstructing corrupted regions in a multi-parameter physiological signal. The method, which uses information in correlated signals, is specifically designed to preserve clinically ...

Ganeshapillai, Gartheeban

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


121

Multimodel Ensemble Reconstruction of Drought over the Continental United States  

Science Conference Proceedings (OSTI)

Retrospectively simulated soil moisture from an ensemble of six land surface/hydrological models was used to reconstruct drought events over the continental United States for the period 1920–2003. The simulations were performed at one-half-degree ...

Aihui Wang; Theodore J. Bohn; Sarith P. Mahanama; Randal D. Koster; Dennis P. Lettenmaier

2009-05-01T23:59:59.000Z

122

P-adic Reconstruction of Rational Numbers - Computer Science  

E-Print Network (OSTI)

P-adic Reconstruction of Rational Numbers. Paul S. Wang*. Kent State University . Department of Mathematical Sciences. Kent. Ohio U.S.A.. 44242. M.J.T. Guy.

123

Simple reconstruction of binary near-perfect phylogenetic trees  

Science Conference Proceedings (OSTI)

We consider the problem of reconstructing near-perfect phylogenetic trees using binary character states (referred to as BNPP). A perfect phylogeny assumes that every character mutates at most once in the evolutionary tree, yielding an algorithm for binary ...

Srinath Sridhar; Kedar Dhamdhere; Guy E. Blelloch; Eran Halperin; R. Ravi; Russell Schwartz

2006-05-01T23:59:59.000Z

124

Assimilation of Time-averaged Pseudoproxies for Climate Reconstruction  

Science Conference Proceedings (OSTI)

We examine the efficacy of a novel ensemble data assimilation (DA) technique in climate field reconstruction (CFR) of surface temperature. We employ a minimalistic, computationally inexpensive DA technique that requires only a static ensemble of ...

Nathan J. Steiger; Gregory J. Hakim; Eric J. Steig; David S. Battisti; Gerard H. Roe

125

Reconstructing $f(R,T)$ gravity from holographic dark energy  

E-Print Network (OSTI)

We numerically reconstruct those $f(R,T)$ theories of gravity (where $T$ is the trace of the energy-momentum tensor) which are able to reproduce holographic dark energy models.

Houndjo, M J S

2011-01-01T23:59:59.000Z

126

Nonstationary Australasian Teleconnections and Implications for Paleoclimate Reconstructions  

Science Conference Proceedings (OSTI)

The stationarity of relationships between local and remote climates is a necessary, yet implicit, assumption underlying many paleoclimate reconstructions. However, the assumption is tenuous for many seasonal relationships between interannual ...

Ailie J. E. Gallant; Steven J. Phipps; David J. Karoly; A. Brett Mullan; Andrew M. Lorrey

127

Discrete multi-material interface reconstruction for volume fraction data  

Science Conference Proceedings (OSTI)

Material interface reconstruction (MIR) is the task of constructing boundary interfaces between regions of homogeneous material, while satisfying volume constraints, over a structured or unstructured spatial domain. In this paper, we present a discrete ...

J. C. Anderson; C. Garth; M. A. Duchaineau; K. I. Joy

2008-05-01T23:59:59.000Z

128

Climate Field Reconstruction under Stationary and Nonstationary Forcing  

Science Conference Proceedings (OSTI)

The fidelity of climate reconstructions employing covariance-based calibration techniques is tested with varying levels of sparseness of available data during intervals of relatively constant (stationary) and increasing (nonstationary) forcing. ...

S. Rutherford; M. E. Mann; T. L. Delworth; R. J. Stouffer

2003-02-01T23:59:59.000Z

129

CAT reconstruction and potting comparison of a LMFBR fuel bundle  

SciTech Connect

A standard Liquid Metal Fast Breeder Reactor (LMFBR) subassembly used in the Experimental Breeder Reactor II (EBR-II) was investigated, by remote techniques, for fuel bundle distortion by both nondestructive and destructive methods, and the results from both methods were compared. The non-destructive method employed neutron tomography to reconstruct the locations of fuel elements through the use of a maximum entropy reconstruction algorithm known as MENT. The destructive method consisted of ''potting'' (a technique that embeds and permanently fixes the fuel elements in a solid matrix) the subassembly, and then cutting and polishing the individual sections. The comparison indicated that the tomography reconstruction provided good results in describing the bundle geometry and spacer-wire locations, with the overall resolution being on the order of a spacer-wire diameter. A dimensional consistency check indicated that the element and spacer-wire dimensions were accurately reproduced in the reconstruction.

Betten, P.R.; Tow, D.M.

1984-04-01T23:59:59.000Z

130

Reconstruction dynamics of recorded holograms in photochromic glass  

SciTech Connect

We have investigated the dynamics of the record-erase process of holograms in photochromic glass using continuum Nd:YVO{sub 4} laser radiation ({lambda}=532 nm). A bidimensional microgrid pattern was formed and visualized in photochromic glass, and its diffraction efficiency decay versus time (during reconstruction step) gave us information (D, {Delta}n) about the diffusion process inside the material. The recording and reconstruction processes were carried out in an off-axis setup, and the images of the reconstructed object were recorded by a CCD camera. Measurements realized on reconstructed object images using holograms recorded at a different incident power laser have shown a two-stage process involved in silver atom kinetics.

Mihailescu, Mona; Pavel, Eugen; Nicolae, Vasile B.

2011-06-20T23:59:59.000Z

131

Least Squares Reconstruction of Doppler Radar Spectra for Irregular PRT  

Science Conference Proceedings (OSTI)

A least squares method for the reconstruction of Doppler spectra of weather radars with irregular pulse repetition time used to increase the range of unambiguous velocity is presented and evaluated. This method is a robust spectral method that is ...

John Kalogiros

2012-12-01T23:59:59.000Z

132

Electron and Photon Reconstruction and Identification with the ATLAS Detector  

E-Print Network (OSTI)

The status of the reconstruction and identification of electrons and photons in the ATLAS detector is presented. Electrons and photons are crucial for both a thorough understanding of the detector and physics studies. An electrons identification efficiency of 64% can be reached for a jet rejection of 10^5. The electromagnetic energy scale can be estimated with a permil accuracy. The reconstruction process is described along with the identification and calibration techniques developed to obtain the required performance.

Turlay, E

2008-01-01T23:59:59.000Z

133

Fundamental & Applied Bioenergy | Clean Energy | ORNL  

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

a new generation of efficient bioenergy strategies that will reduce U.S. dependence on foreign oil and help curb carbon emissions. Fundamental and applied bioenergy research at...

134

Applied Control Strategies at a Cogeneration Plant.  

E-Print Network (OSTI)

?? The purpose of this paper is to demonstrate the effectiveness of “classical strategies for dynamic control” on authentic cogeneration processes. These strategies are applied… (more)

Burns, Joseph William

2011-01-01T23:59:59.000Z

135

Applied Quantum Technology AQT | Open Energy Information  

Open Energy Info (EERE)

AQT Jump to: navigation, search Name Applied Quantum Technology (AQT) Place Santa Clara, California Zip 95054 Product California-based manufacturer of CIGS (copper indium gallium...

136

A Bayesian Algorithm for Reconstructing Climate Anomalies in Space and Time. Part I: Development and Applications to Paleoclimate Reconstruction Problems  

Science Conference Proceedings (OSTI)

Reconstructing the spatial pattern of a climate field through time from a dataset of overlapping instrumental and climate proxy time series is a nontrivial statistical problem. The need to transform the proxy observations into estimates of the ...

Martin P. Tingley; Peter Huybers

2010-05-01T23:59:59.000Z

137

MicroCT: Automated Analysis of CT Reconstructed Data of Home Made Explosive Materials Using the Matlab MicroCT Analysis GUI  

SciTech Connect

This Standard Operating Procedure (SOP) provides the specific procedural steps for analyzing reconstructed CT images obtained under the IDD Standard Operating Procedures for data acquisition [1] and MicroCT image reconstruction [2], per the IDD Quality Assurance Plan for MicroCT Scanning [3]. Although intended to apply primarily to MicroCT data acquired in the HEAFCAT Facility at LLNL, these procedures may also be applied to data acquired at Tyndall from the YXLON cabinet and at TSL from the HEXCAT system. This SOP also provides the procedural steps for preparing the tables and graphs to be used in the reporting of analytical results. This SOP applies to production work - for R and D there are two other semi-automated methods as given in [4, 5].

Seetho, I M; Brown, W D; Kallman, J S; Martz, H E; White, W T

2011-09-22T23:59:59.000Z

138

MicroCT: Semi-Automated Analysis of CT Reconstructed Data of Home Made Explosive Materials Using the Matlab MicroCT Analysis GUI  

SciTech Connect

This Standard Operating Procedure (SOP) provides the specific procedural steps for analyzing reconstructed CT images obtained under the IDD Standard Operating Procedures for data acquisition [1] and MicroCT image reconstruction [2], per the IDD Quality Assurance Plan for MicroCT Scanning [3]. Although intended to apply primarily to MicroCT data acquired in the HEAFCAT Facility at LLNL, these procedures may also be applied to data acquired at Tyndall from the YXLON cabinet and at TSL from the HEXCAT system. This SOP also provides the procedural steps for preparing the tables and graphs to be used in the reporting of analytical results. This SOP applies to R and D work - for production applications, use [4].

Seetho, I M; Brown, W D; Kallman, J S; Martz, H E; White, W T

2011-09-22T23:59:59.000Z

139

Applied technology section. Monthly report, March 1994  

Science Conference Proceedings (OSTI)

This is a monthly report giving the details on research currently being conducted at the Savannah River Technology Center. The following are areas of the research, engineering modeling and simulation, applied statistics, applied physics,experimental thermal hydraulics,and packaging and transportation.

Buckner, M.R.

1994-04-20T23:59:59.000Z

140

DRAFT GUIDANCE Applying for Other Uses of  

E-Print Network (OSTI)

DRAFT GUIDANCE Applying for Other Uses of Phosphogypsum: Submitting a Complete Petition 40 CFR 61 Assignment 0-2 #12;Applying for Other Uses of Phosphogypsum: Submitting a Complete Petition Table of Contents phosphogypsum in stacks? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.4. What

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

Applied Materials Inc AMAT | Open Energy Information  

Open Energy Info (EERE)

Inc AMAT Inc AMAT Jump to: navigation, search Name Applied Materials Inc (AMAT) Place Santa Clara, California Zip 95052-8039 Sector Solar Product US-based manufacturer of equipment used in solar (silicon, thin-film, BIPV), semiconductor, and LCD markets. References Applied Materials Inc (AMAT)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Applied Materials Inc (AMAT) is a company located in Santa Clara, California . References ↑ "Applied Materials Inc (AMAT)" Retrieved from "http://en.openei.org/w/index.php?title=Applied_Materials_Inc_AMAT&oldid=342244" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes

142

Applied Materials Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Wind Turbine Wind Turbine Jump to: navigation, search Name Applied Materials Wind Turbine Facility Applied Materials Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Applied Materials Developer Applied Materials Energy Purchaser Applied Materials Location Gloucester MA Coordinates 42.62895426°, -70.65153122° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.62895426,"lon":-70.65153122,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

143

Individualized 3D Reconstruction of Normal Tissue Dose for Patients With Long-term Follow-up: A Step Toward Understanding Dose Risk for Late Toxicity  

SciTech Connect

Purpose: Understanding the relationship between normal tissue dose and delayed radiation toxicity is an important component of developing more effective radiation therapy. Late outcome data are generally available only for patients who have undergone 2-dimensional (2D) treatment plans. The purpose of this study was to evaluate the accuracy of 3D normal tissue dosimetry derived from reconstructed 2D treatment plans in Hodgkin's lymphoma (HL) patients. Methods and Materials: Three-dimensional lung, heart, and breast volumes were reconstructed from 2D planning radiographs for HL patients who received mediastinal radiation therapy. For each organ, a reference 3D organ was modified with patient-specific structural information, using deformable image processing software. Radiation therapy plans were reconstructed by applying treatment parameters obtained from patient records to the reconstructed 3D volumes. For each reconstructed organ mean dose (D{sub mean}) and volumes covered by at least 5 Gy (V{sub 5}) and 20Gy (V{sub 20}) were calculated. This process was performed for 15 patients who had both 2D and 3D planning data available to compare the reconstructed normal tissue doses with those derived from the primary CT planning data and also for 10 historically treated patients with only 2D imaging available. Results: For patients with 3D planning data, the normal tissue doses could be reconstructed accurately using 2D planning data. Median differences in D{sub mean} between reconstructed and actual plans were 0.18 Gy (lungs), -0.15 Gy (heart), and 0.30 Gy (breasts). Median difference in V{sub 5} and V{sub 20} were less than 2% for each organ. Reconstructed 3D dosimetry was substantially higher in historical mantle-field treatments than contemporary involved-field mediastinal treatments: average D{sub mean} values were 15.2 Gy vs 10.6 Gy (lungs), 27.0 Gy vs 14.3 Gy (heart), and 8.0 Gy vs 3.2 Gy (breasts). Conclusions: Three-dimensional reconstruction of absorbed dose to organs at risk can be estimated accurately many years after exposure by using limited 2D data. Compared to contemporary involved-field treatments, normal tissue doses were significantly higher in historical mantle-field treatments. These methods build capacity to quantify the relationship between 3D normal tissue dose and observed late effects.

Ng, Angela [Radiation Medicine Program, Princess Margaret Hospital, Toronto, Ontario (Canada)] [Radiation Medicine Program, Princess Margaret Hospital, Toronto, Ontario (Canada); Brock, Kristy K.; Sharpe, Michael B. [Radiation Medicine Program, Princess Margaret Hospital, Toronto, Ontario (Canada) [Radiation Medicine Program, Princess Margaret Hospital, Toronto, Ontario (Canada); Department of Radiation Oncology, University of Toronto, Toronto, Ontario (Canada); Moseley, Joanne L. [Radiation Medicine Program, Princess Margaret Hospital, Toronto, Ontario (Canada)] [Radiation Medicine Program, Princess Margaret Hospital, Toronto, Ontario (Canada); Craig, Tim [Radiation Medicine Program, Princess Margaret Hospital, Toronto, Ontario (Canada) [Radiation Medicine Program, Princess Margaret Hospital, Toronto, Ontario (Canada); Department of Radiation Oncology, University of Toronto, Toronto, Ontario (Canada); Hodgson, David C., E-mail: David.Hodgson@rmp.uhn.on.ca [Radiation Medicine Program, Princess Margaret Hospital, Toronto, Ontario (Canada); Department of Radiation Oncology, University of Toronto, Toronto, Ontario (Canada)

2012-11-15T23:59:59.000Z

144

European Bank for Reconstruction and Development (EBRD) | Open Energy  

Open Energy Info (EERE)

Bank for Reconstruction and Development (EBRD) Bank for Reconstruction and Development (EBRD) (Redirected from European Bank for Reconstruction and Development) Jump to: navigation, search Logo: European Bank for Reconstruction and Development Name European Bank for Reconstruction and Development Address EBRD One Exchange Square Place London, United Kingdom Year founded 1991 Phone number 44 20 7338 6000 Website http://www.ebrd.com/ Coordinates 51.5760683°, 0.18155° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":51.5760683,"lon":0.18155,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

145

Applying System Engineering to Pharmaceutical Safety  

E-Print Network (OSTI)

While engineering techniques are used in the development of medical devices and have been applied to individual healthcare processes, such as the use of checklists in surgery and ICUs, the application of system engineering ...

Couturier, Matthieu

146

Applied Information Security, 1st edition  

Science Conference Proceedings (OSTI)

Applied Information Security guides readers through the installation and basic operation of IT Security software used in the industry today. Dos Commands; Password Auditors; Data Recovery & Secure Deletion; Packet Sniffer; Port Scanners; Vulnerability ...

Randy Boyle

2009-07-01T23:59:59.000Z

147

Baldrige FAQs: Applying for the Award  

Science Conference Proceedings (OSTI)

... often use their feedback reports in their strategic planning processes to focus ... How long does it take to apply for the ... How long will it take to do a self ...

2013-05-21T23:59:59.000Z

148

Applied Field Research Initiative Deep Vadose Zone  

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

Applied Field Research Initiative Applied Field Research Initiative Deep Vadose Zone Located on the Hanford Site in Richland, Washington, the Deep Vadose Zone Applied Field Research Initiative (DVZ AFRI) was established to protect water resources by addressing the challenge of preventing contamination in the deep vadose zone from reaching groundwater. Led by the Pacific Northwest National Laboratory, the Initiative is a collaborative effort that leverages Department of Energy (DOE) investments in basic science and applied research and the work of site contractors to address the complex deep vadose zone contamination challenges. Challenge Many vadose zone environments within the DOE complex consist of complex stratified layers of unconsolidated and water-unsaturated sediments that are, in many places, con-

149

Applied Virtual Intelligence in Oil & Gas Industry;  

E-Print Network (OSTI)

1 Applied Virtual Intelligence in Oil & Gas Industry; Past, Present, & Future Shahab D. Mohaghegh on a daily basis by almost everyone. Credit Card Fraud Detection Bank Loan Approval Bomb Sniffing Devices

Mohaghegh, Shahab

150

Thermally Activated Stripe Reconstruction Induced by O on Nb (011)  

Science Conference Proceedings (OSTI)

We report scanning tunneling microscopy and low energy electron microscopy (LEEM) observations for thin films of Nb (011) of stripe-phase behavior by two variants of an O-induced reconstruction. Stripes occur for thin films but not bulk crystals. At low temperatures the less-favored variant is thermally activated as single stripes on surface heterogeneities. Near T{sub 0}=1505 K , where the reconstruction is lifted, the stripes crowd to form a periodic array with a temperature dependent spacing. LEEM permits quantitative insight into stripe behavior and reveals novel details of stripes interacting with topographic features such as steps, facets, and dislocations.

Ondrejcek, M.; Appleton, R. S.; Swiech, W.; Petrova, V. L.; Flynn, C. P.

2001-09-10T23:59:59.000Z

151

Spatial emission tomography reconstruction using Pitman-Yor process  

SciTech Connect

In this paper, we address the problem of emission tomography spatial reconstruction in three dimensions following a Bayesian nonparametric approach. Our model makes use of a generalization of the Dirichlet process called Pitman-Yor process. The problem in this approach is to deal with the infinite representation of the distribution in the inference. So we propose an efficient Markov Chain Monte-Carlo sampling scheme which is able to generate samples from the posterior distribution of the activity distribution. An application to 3D-PET reconstruction is presented.

Fall, Mame Diarra; Mohammad-Djafari, Ali [L2S, Supelec, 3 rue Joliot-Curie, F-91192 Gif-sur-Yvette cedex (France); Barat, Eric [CEA-LIST, LPSS, CEA-Saclay, F-91191 Gif-sur-Yvette (France); Comtat, Claude [SHFJ, CEA/DSV/I2BM, F-91401 Orsay (France)

2009-12-08T23:59:59.000Z

152

New designs in the reconstruction of coke-sorting systems  

Science Conference Proceedings (OSTI)

In recent Giprokoks designs for the reconstruction of coke-sorting systems, high-productivity vibrational-inertial screens have been employed. This permits single-stage screening and reduction in capital and especially operating expenditures, without loss of coke quality. In two-stage screening, >80 mm coke (for foundry needs) is additionally separated, with significant improvement in quality of the metallurgical coke (25-80 mm). New designs for the reconstruction of coke-sorting systems employ mechanical treatment of the coke outside the furnace, which offers new scope for stabilization of coke quality and permits considerable improvement in mechanical strength and granulometric composition of the coke by mechanical crushing.

A.S. Larin; V.V. Demenko; V.L. Voitanik [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

153

How to Apply | Department of Energy  

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

How to Apply How to Apply How to Apply Awards are made through a formal process that has changed dramatically since 2011. So let us walk you through it step by step. "Innovation pays." - John Kao, Innovation Nation Submit a Letter of Intent On October 28, 2013, the U.S. Department of Energy (DOE) announced on the DOE SBIR website a preview version of the technical topics for which it will later accept funding applications. These topics will be found on the DOE's Funding Opportunity Announcements page. The EE SBIR page lists those topics that are cleantech (specific to EERE). We also recommend that you sign up for the EE-SBIR and DOE-SBIR mailing lists. The EE SBIR mailing list signup is at https://public.govdelivery.com/accounts/USEERE/subscriber/new?topic_id=USEERE_442.

154

Applied Field Research Initiative Attenuation Based Remedies  

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

PA00133 - March 2011 PA00133 - March 2011 Applied Field Research Initiative Attenuation Based Remedies in the Subsurface Located at the Savannah River Site in Aiken, South Carolina, the Attenuation-Based Remedies in the Subsurface Applied Field Research Initiative (ABRS AFRI) was established to develop the tools, approaches and technologies that will be required to address the technical challenges associated characteriza- tion, remediation and long-term monitoring of recalcitrant compounds in the subsurface at Department of Energy (DOE) Environmental Management (EM) sites. The ABRS AFRI site provides a unique setting for researchers in both applied and basic science fields. A wealth of subsurface data is available to support research activities and remedial decision making.

155

Applied Process Engineering Laboratory | Open Energy Information  

Open Energy Info (EERE)

Applied Process Engineering Laboratory Applied Process Engineering Laboratory Name Applied Process Engineering Laboratory Address 350 Hills Street, Suite #101 Place Richland, Washington Zip 99354 Region Pacific Northwest Area Coordinates 46.3389754°, -119.2716263° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":46.3389754,"lon":-119.2716263,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

156

Modeling International Relationships in Applied General Equilibrium  

Open Energy Info (EERE)

Modeling International Relationships in Applied General Equilibrium Modeling International Relationships in Applied General Equilibrium (MIRAGE) Jump to: navigation, search LEDSGP green logo.png FIND MORE DIA TOOLS This tool is part of the Development Impacts Assessment (DIA) Toolkit from the LEDS Global Partnership. Tool Summary LAUNCH TOOL Name: Modeling International Relationships in Applied General Equilibrium (MIRAGE) Agency/Company /Organization: International Food Policy Research Institute, Centre d'Etudes Prospectives et d'Informations Internationales (CEPII) Focus Area: Economic Development Topics: Co-benefits assessment, - Macroeconomic Resource Type: Software/modeling tools User Interface: Desktop Application Complexity/Ease of Use: Moderate Website: www.ifpri.org/book-5076/ourwork/program/mirage-model RelatedTo: Global Trade Analysis Project (GTAP) Data Base

157

Applied Ventures LLC | Open Energy Information  

Open Energy Info (EERE)

Applied Ventures LLC Applied Ventures LLC Name Applied Ventures LLC Address 3050 Bowers Avenue Place Santa Clara, California Zip 95054 Region Southern CA Area Product Venture capital. Number of employees 1-10 Phone number (408) 727-5555 Website http://www.appliedventures.com Coordinates 37.37751°, -121.978721° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.37751,"lon":-121.978721,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

158

Reconstruction of steam turbine blade twisted based on NURBS surface  

Science Conference Proceedings (OSTI)

NURBS (Non-Uniform Rational B-Spline) is the most popular mathematical descriptor for surface modeling. To construct steam turbine blade efficiently and accurately, 2´3 NURBS was obtained to fitted blade surface as its cross-section is different tangent ... Keywords: steam turbine blade, surface modeling, NURBS surfac, reconstruction

Yue Ying; Wang Zhangqi; Han Qingyao

2010-06-01T23:59:59.000Z

159

Fast nonconvex nonsmooth minimization methods for image restoration and reconstruction  

Science Conference Proceedings (OSTI)

Nonconvex nonsmooth regularization has advantages over convex regularization for restoring images with neat edges. However, its practical interest used to be limited by the difficulty of the computational stage which requires a nonconvex nonsmooth minimization. ... Keywords: continuation methods, fast fourier transform, global minimization, image reconstruction, image restoration, nonconvex nonsmooth, nonconvex nonsmooth regularization, total variation.

Mila Nikolova; Michael K. Ng; Chi-Pan Tam

2010-12-01T23:59:59.000Z

160

Iterative Methods for Image Reconstruction Jeffrey A. Fessler  

E-Print Network (OSTI)

detectors, the goal is to reconstruct the attenuation map µ(x) from transmission measurements {yi} nd i=1 BPF Gridding ... ART MART SMART ... Squares Least ISRA ... CG CD Algebraic Statistical ANALYTICAL and transmission tomography (Rockmore and Macovski, TNS, 1976, 1977) · Expectation-maximization (EM) algorithms

Fessler, Jeffrey A.

Note: This page contains sample records for the topic "reconstruction cxs applied" from the National Library of EnergyBeta (NLEBeta).
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161

European Bank for Reconstruction and Development (EBRD) | Open Energy  

Open Energy Info (EERE)

European Bank for Reconstruction and Development (EBRD) European Bank for Reconstruction and Development (EBRD) Jump to: navigation, search Logo: European Bank for Reconstruction and Development Name European Bank for Reconstruction and Development Address EBRD One Exchange Square Place London, United Kingdom Year founded 1991 Phone number 44 20 7338 6000 Website http://www.ebrd.com/ Coordinates 51.5760683°, 0.18155° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":51.5760683,"lon":0.18155,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

162

Potomac River Streamflow Since 1730 as Reconstructed by Tree Rings  

Science Conference Proceedings (OSTI)

A 248-year reconstruction of the low-flow (July, August and September) period of the Potomac River indicates that the prolonged drought of the 1960s may have been the most severe since 1730. However, there appear to have been several long periods ...

Edward R. Cook; Gordon C. Jacoby

1983-10-01T23:59:59.000Z

163

Reconstructing f(R) theory according to holographic dark energy  

E-Print Network (OSTI)

In this paper a connection between the holographic dark energy model and the $f(R)$ theory is established. We treat the $f(R)$ theory as an effective description for the holographic dark energy and reconstruct the function $f(R)$ with the parameter $c>1$, $c=1$ and $cR)$ theory, especially for the future evolution.

Xing Wu; Zong-Hong Zhu

2007-12-21T23:59:59.000Z

164

A camcorder for 3D underwater reconstruction of archeological objects  

E-Print Network (OSTI)

A camcorder for 3D underwater reconstruction of archeological objects A. Meline1 , J. Triboulet1 Cedex 5, France 2 Université de Nîmes, Place Gabriele Péri, 30021 Nîmes, France Abstract- The underwater cartography has made great progress in the last decade. In this paper, we discuss of the 3D underwater

Paris-Sud XI, Université de

165

Very realistic graphics for visualising archaeological site reconstructions  

Science Conference Proceedings (OSTI)

Recent developments in computer graphics are providing powerful tools for modelling multidimensional aspects of data gathered by archaeologists. Computer graphics techniques can now be used to reconstruct and visualise features of a site which may otherwise ... Keywords: archaeology, global illumination, very realistic rendering, visual perception

Alan Chalmers

2002-04-01T23:59:59.000Z

166

Event Reconstruction for Many-core Architectures using Java  

SciTech Connect

Although Moore's Law remains technically valid, the performance enhancements in computing which traditionally resulted from increased CPU speeds ended years ago. Chip manufacturers have chosen to increase the number of core CPUs per chip instead of increasing clock speed. Unfortunately, these extra CPUs do not automatically result in improvements in simulation or reconstruction times. To take advantage of this extra computing power requires changing how software is written. Event reconstruction is globally serial, in the sense that raw data has to be unpacked first, channels have to be clustered to produce hits before those hits are identified as belonging to a track or shower, tracks have to be found and fit before they are vertexed, etc. However, many of the individual procedures along the reconstruction chain are intrinsically independent and are perfect candidates for optimization using multi-core architecture. Threading is perhaps the simplest approach to parallelizing a program and Java includes a powerful threading facility built into the language. We have developed a fast and flexible reconstruction package (org.lcsim) written in Java that has been used for numerous physics and detector optimization studies. In this paper we present the results of our studies on optimizing the performance of this toolkit using multiple threads on many-core architectures.

Graf, Norman A.; /SLAC

2012-04-19T23:59:59.000Z

167

Inverse problem of time-dependent heat sources numerical reconstruction  

Science Conference Proceedings (OSTI)

Abstract: This work studies the inverse problem of reconstructing a time-dependent heat source in the heat conduction equation using the temperature measurement specified at an internal point. Problems of this type have important applications in several ... Keywords: 35R30, 49J20, Green function, Heat source, Inverse problem, Landweber iteration, Numerical results

Liu Yang; Mehdi Dehghan; Jian-Ning Yu; Guan-Wei Luo

2011-04-01T23:59:59.000Z

168

Free energy reconstruction from nonequilibrium single-molecule pulling experiments  

E-Print Network (OSTI)

Free energy reconstruction from nonequilibrium single-molecule pulling experiments Gerhard Hummer also drives the system away from equilibrium. Nevertheless, we show how equilibrium free energy of an extension of Jarzynski's remarkable identity between free energies and the irreversible work. Recent

Weeks, Eric R.

169

Prediction of Tropical Rainfall by Local Phase Space Reconstruction  

Science Conference Proceedings (OSTI)

The authors propose a weather prediction model based on a local reconstruction of the dynamics in phase space, using an 11-year dataset from Tlaxcala, Mexico. A vector in phase space corresponds to T consecutive days of data; the best predictions ...

H. Waelbroeck; R. López-Pen?a; T. Morales; F. Zertuche

1994-11-01T23:59:59.000Z

170

Image reconstruction for two-color microgrid polarimetric imagers  

Science Conference Proceedings (OSTI)

A Fourier domain method for reconstructing passive Stokes imagery from a two-color microgrid polarization imager is presented in this paper. This new filter-based technique is designed to avoid aliased spectrum content caused by sampling in a checkerboard ...

Daniel A. LeMaster

2011-03-01T23:59:59.000Z

171

Volumetric Geometry Reconstruction of Turbine Blades for Aircraft Engines  

E-Print Network (OSTI)

Volumetric Geometry Reconstruction of Turbine Blades for Aircraft Engines David GroÃ?mann1 and Bert-spline parametrization of turbine blades from measurement data generated by optical scanners. This new representation elements. We focus on the industrial applicability of the framework, by using standard turbine blade

Jüttler, Bert

172

Texas Drought History Reconstructed and Analyzed from 1698 to 1980  

Science Conference Proceedings (OSTI)

A selected group of nine climate-sensitive tree-ring chronologies from old post oak trees are used to reconstruct the June Palmer Drought Severity Index (PDSI) from 1698 to 1980 for two large regions in northern and southern Texas. Analysis of ...

David W. Stahle; Malcolm K. Cleaveland

1988-01-01T23:59:59.000Z

173

Applying Adaptive Evolutionary Algorithms to Hard Problems  

E-Print Network (OSTI)

Applying Adaptive Evolutionary Algorithms to Hard Problems J.I. van Hemert1 jvhemert into two distinct parts. The main theme is adaptive evolutionary algorithms. The rst part covers. The second part mainly consists of the development of a library. Its use is aimed at evolutionary algorithms

Emmerich, Michael

174

Uniform insulation applied-B ion diode  

DOE Patents (OSTI)

An applied-B field extraction ion diode has uniform insulation over an anode surface for increased efficiency. When the uniform insulation is accomplished with anode coils, and a charge-exchange foil is properly placed, and ions may be focused at a point on the z axis.

Seidel, D.B.; Slutz, S.A.

1986-04-11T23:59:59.000Z

175

Uniform insulation applied-B ion diode  

DOE Patents (OSTI)

An applied-B field extraction ion diode has uniform insulation over an anode surface for increased efficiency. When the uniform insulation is accomplished with anode coils, and a charge-exchange foil is properly placed, the ions may be focused at a point on the z axis.

Seidel, David B. (Albuquerque, NM); Slutz, Stephen A. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

176

NIBART: A New Interval Based Algebraic Reconstruction Technique for Error Quantification of Emission Tomography Images  

Science Conference Proceedings (OSTI)

This article presents a new algebraic method for reconstructing emission tomography images. This approach is mostly an interval extension of the conventional SIRT algorithm. One of the main characteristic of our approach is that the reconstructed activity ...

Olivier Strauss; Abdelkabir Lahrech; Agnès Rico; Denis Mariano-Goulart; Benoît Telle

2009-10-01T23:59:59.000Z

177

Comments on “Testing the Fidelity of Methods Used in Proxy-Based Reconstructions of Past Climate”  

Science Conference Proceedings (OSTI)

Mann et el. found that a version of the Regularized Expectation Maximization (RegEM) method to reconstruct the temperatures of the last millennium showed similar results to previous reconstructions in one of their earlier papers. They also tested ...

Eduardo Zorita; Fidel Gonzalez-Rouco; Hans von Storch

2007-07-01T23:59:59.000Z

178

Tree-Ring Density Reconstructions of Summer Temperature Patterns across Western North America since 1600  

Science Conference Proceedings (OSTI)

Summer half-year (April-September) mean temperatures are reconstructed across western North America between 1600 and 1982. The reconstructions, ultimately in the form of gridpoint anomaly time series, are produced using a principal-components ...

K. R. Briffa; P. D. Jones; F. H. Schweingruber

1992-07-01T23:59:59.000Z

179

A Surrogate Ensemble Study of Climate Reconstruction Methods: Stochasticity and Robustness  

Science Conference Proceedings (OSTI)

Reconstruction of the earth’s surface temperature from proxy data is an important task because of the need to compare recent changes with past variability. However, the statistical properties and robustness of climate reconstruction methods are ...

Bo Christiansen; T. Schmith; P. Thejll

2009-02-01T23:59:59.000Z

180

The Case for Fewer Cases in Pre-Chukotko-Kamchatkan: Grammaticalization and Semantics in Internal Reconstruction.  

E-Print Network (OSTI)

??This work internally reconstructs the case system of Pre-Chukotko-Kamchatkan from the comparative reconstruction of Proto-Chukotko-Kamchatkan. Using the comparative and etymological dictionaries by Fortescue (2005), Mudrak… (more)

Wdzenczny, Dibella

2011-01-01T23:59:59.000Z

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


181

Reconstruction and Simulation of Stratospheric Ozone Distributions during the 2002 Austral Winter  

Science Conference Proceedings (OSTI)

Satellite-based solar occultation measurements during the 2002 austral winter have been used to reconstruct global, three-dimensional ozone distributions. The reconstruction method uses correlations between potential vorticity and ozone to derive ...

C. E. Randall; G. L. Manney; D. R. Allen; R. M. Bevilacqua; J. Hornstein; C. Trepte; W. Lahoz; J. Ajtic; G. Bodeker

2005-03-01T23:59:59.000Z

182

A 431-Yr Reconstruction of Western Colorado Snowpack from Tree Rings  

Science Conference Proceedings (OSTI)

A tree-ring-based reconstruction for 1 April snow water equivalent (SWE) is generated for the Gunnison River basin region in western Colorado. The reconstruction explains 63% of the variance in the instrumental record and extends from 1569 to ...

Connie A. Woodhouse

2003-05-01T23:59:59.000Z

183

Reconstructing Millennial-Scale, Regional Paleoclimates of Boreal Canada during the Holocene  

Science Conference Proceedings (OSTI)

Regional paleoclimate reconstructions for northern Canada quantify Holocene climate variability on orbital and millennial time scales and provide a context to better understand the current global warming. The reconstructions are based on ...

A. E. Viau; K. Gajewski

2009-01-01T23:59:59.000Z

184

Current developments at Giprokoks for coke-battery construction and reconstruction  

Science Conference Proceedings (OSTI)

Approaches developed at Giprokoks for coke-battery construction and reconstruction are considered. Recommendations regarding furnace construction and reconstruction are made on the basis of Ukrainian and world experience.

V.I. Rudyka; Y.E. Zingerman; V.B. Kamenyuka; O.N. Surenskii; G.E. Kos'kova; V.V. Derevich; V.A. Gushchin [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

185

Reconstruction of the Free Energy in the Metastable Region using the Path Ensemble  

E-Print Network (OSTI)

Reconstruction of the Free Energy in the Metastable Region using the Path Ensemble Armando Ticona which we reconstruct the free energy as a function of the magnetic field, temperature and system size. From the reconstructed free energy, we obtain the free energy barrier that is associated

Heermann, Dieter W.

186

3D primitive reconstruction using the line segment with single image  

Science Conference Proceedings (OSTI)

This paper presents a 3-D reconstruction method IBM(image based modeling) of an image that does not contain any camera information. This system adopts a 3D reconstruction method based on a model. Model-based 3D reconstruction recovers an image using ...

Sung-Dong Cho; Seung-Taek Ryoo; Tai-Ho Choi; Kyung-Hyun Yoon

2003-05-01T23:59:59.000Z

187

Solar activity reconstructed over the last 7000 years: The influence of geomagnetic field changes  

E-Print Network (OSTI)

Solar activity reconstructed over the last 7000 years: The influence of geomagnetic field changes I activity depends, however, on independently evaluated data of the geomagnetic dipole strength variations to the earlier geomagnetic reconstructions. We have revised the earlier sunspot activity reconstruction since

Usoskin, Ilya G.

188

Title Page Applied and Environmental Microbiology 1  

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

Applied and Environmental Microbiology 1 Applied and Environmental Microbiology 1 2 Title Natural Competence in Thermoanaerobacter and Thermoanaerobacterium Species 3 Running Title Thermonanerobacter Natural Competence 4 5 Authors and Affiliations 6 A. Joe Shaw 1,2 , David A. Hogsett 1 , Lee R. Lynd 1,2,3 * 7 1 Mascoma Corporation, Lebanon, NH 03766 8 2 Thayer School of Engineering, Dartmouth College, Hanover, NH 03755 9 3 Department of Biological Sciences, Dartmouth College, Hanover, NH 03755 10 11 Corresponding Author 12 Lee R. Lynd 13 Thayer School of Engineering, Dartmouth College, Hanover, NH 03755 14 Phone: 603.646.2231 15 Email: lee.lynd@dartmouth.edu 16 17 18 19 20 21 22 23 Copyright © 2010, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved.

189

Fundamental & Applied Bioenergy | Clean Energy | ORNL  

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

Bioenergy Bioenergy SHARE Fundamental and Applied Bioenergy Steven Brown (left) and Shihui Yang have developed a microbial strain with an improved ability to convert wood products to biofuel as part of research within the DOE BioEnergy Science Center.Source: ORNL News article ORNL researchers are investigating the biological mechanisms underlying production of biofuels so that those mechanisms can be improved and used to develop a new generation of efficient bioenergy strategies that will reduce U.S. dependence on foreign oil and help curb carbon emissions. Fundamental and applied bioenergy research at ORNL includes studies conducted within the BioEnergy Science Center and the following research areas: Bioconversion Science and Technology Plant-Microbe Interfaces

190

Apply for Beam Time | Advanced Photon Source  

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

Apply for Beam Time Apply for Beam Time NEXT PROPOSAL DEADLINE: March 7, 2014 @ 11:59 PM (Chicago time) Submit Proposal » SEE ALSO: Calendar: deadlines, run & review dates Help Page: frequently asked questions, tips for success, common errors, blank forms, instructions Review Criteria Sectors Directory: check CAT websites for info about managed beam time The Run 2014-2 proposal submission deadline is 11:59 p.m. (Chicago time) March 7, 2014. The system will open to accept proposals beginning December 20, 2013. NEW USERS: to avoid delays and to make the most of your time on site, read Become a User. You must register as a user and receive a badge number before submitting a proposal. About the Beam Time Request Process All beam time at the APS must be requested each cycle through the web-based

191

Applying DSM evaluation results to utility planning  

SciTech Connect

This paper describes the results of a study to assess the application of DSM evaluation results to utility forecasting and planning. The paper has three objectives: (1) identify forecasting and planning applications of evaluation studies, (2) identify major obstacles and problems associated with applying evaluation results to forecasting and planning, and (3) suggest approaches to address the major problems. The paper summarizes results from interviews with utilities, regulators, and consultants to determine how the utility industry currently applies evaluation results in forecasting and planning. The paper also includes results from a detailed case study of Sacramento Municipal Utility District (SMUD) and Southern California Edison Company (SCE), two utilities with large DSM programs and active evaluation efforts.

Baxter, L.W.

1995-07-01T23:59:59.000Z

192

High-Order Surface Reconstruction and its Applications | Argonne Leadership  

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

High-Order Surface Reconstruction and its Applications High-Order Surface Reconstruction and its Applications Event Sponsor: Mathematics and Computing Science Seminar Start Date: Dec 12 2013 - 10:30am Building/Room: Building 240/Room 4301 Location: Argonne National Laboratory Speaker(s): Navamita Ray Speaker(s) Title: Postdoc Interviewee - MCS Host: Tim Tautges Surface meshes are widely used by many numerical methods for solving partial differential equations. They not only represent computational grids for various discretization methods, but also are numerical objects in themselves. The accuracy of numerical methods, especially high-order methods, are highly dependent on the geometrical accuracy of the mesh as well as on that of differential or integral quantities defined over them. The situation is further complicated if the surface mesh does not have an

193

CCpi0 Event Reconstruction at MiniBooNE  

SciTech Connect

We describe the development of a fitter to reconstruct {nu}{sub {mu}} induced Charged-Current single {pi}{sup 0} (CC{pi}{sup 0}) events in an oil Cerenkov detector (CH{sub 2}). These events are fit using a generic muon and two photon extended track hypothesis from a common event vertex. The development of ring finding and particle identification are described. Comparisons between data and Monte Carlo are presented for a few kinematic distributions.

Nelson, Robert H.; /Colorado U.

2009-09-01T23:59:59.000Z

194

Hanford Environmental Dose Reconstruction Project. Monthly report, November 1991  

SciTech Connect

The objective of the Hanford Environmental Dose Reconstruction Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed, from release to impact on humans (dose estimates): Source terms; environmental transport environmental monitoring data; demographics, agriculture, food habits; environmental pathways and dose estimates.

Finch, S.M.; McMakin, A.H. [comps.

1991-12-31T23:59:59.000Z

195

Crack reconstruction using a level-set strategy  

Science Conference Proceedings (OSTI)

We present a level-set based technique to recover key characteristics of a defect or crack (e.g. location, length and shape) in a two-dimensional material from boundary electrical measurements. The key feature of this work is to extend the usual level-set ... Keywords: 02.30.Zz, 41.20.Cv, 42.30.Wb, Crack reconstruction, Electrical impedance tomography, Level-sets

Diego Álvarez; Oliver Dorn; Natalia Irishina; Miguel Moscoso

2009-09-01T23:59:59.000Z

196

Applied Environmental Microbiology | VIMSS - Virtual Institute for  

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

Collection of Soil Samples Collection of Soil Samples Identification of Natural Stressors Profiling of Microbial Population Field and Simulated Conceptual Model Facilities The Applied Environmental Microbiology (AEM) Core is the source of environmental data and samples that determine the stressors that will be studied, pro-vides the environments for growing the organisms to be tested, simulates stressed environments, and verifies the conceptual models to determine how these stress regulatory pathways control the biogeochemistry of contaminated sites. The specific goals of the AEM Core are to: Survey and map DOE sites contaminated by metals and radionuclides using chemical and molecular/ microbiological parameters to determine major microbial populations and potential stressors for Desulfovibrio vulgaris,

197

Statistical Uncertainty Analysis Applied to Criticality Calculation  

Science Conference Proceedings (OSTI)

In this paper, we present an uncertainty methodology based on a statistical approach, for assessing uncertainties in criticality prediction using monte carlo method due to uncertainties in the isotopic composition of the fuel. The methodology has been applied to criticality calculations with MCNP5 with additional stochastic input of the isotopic fuel composition. The stochastic input were generated using the latin hypercube sampling method based one the probability density function of each nuclide composition. The automatic passing of the stochastic input to the MCNP and the repeated criticality calculation is made possible by using a python script to link the MCNP and our latin hypercube sampling code.

Hartini, Entin; Andiwijayakusuma, Dinan; Susmikanti, Mike; Nursinta, A. W. [Centre for Nuclear Informatics Development, National Nuclear Energy Agency of Indonesia (Indonesia)

2010-06-22T23:59:59.000Z

198

An investigation of temporal regularization techniques for dynamic PET reconstructions using temporal splines  

SciTech Connect

The use of a temporal B-spline basis for the reconstruction of dynamic positron emission tomography data was investigated. Maximum likelihood (ML) reconstructions using an expectation maximization framework and maximum A-posteriori (MAP) reconstructions using the generalized expectation maximization framework were evaluated. Different parameters of the B-spline basis of such as order, number of basis functions and knot placing were investigated in a reconstruction task using simulated dynamic list-mode data. We found that a higher order basis reduced both the bias and variance. Using a higher number of basis functions in the modeling of the time activity curves (TACs) allowed the algorithm to model faster changes of the TACs, however, the TACs became noisier. We have compared ML, Gaussian postsmoothed ML and MAP reconstructions. The noise level in the ML reconstructions was controlled by varying the number of basis functions. The MAP algorithm penalized the integrated squared curvature of the reconstructed TAC. The postsmoothed ML was always outperformed in terms of bias and variance properties by the MAP and ML reconstructions. A simple adaptive knot placing strategy was also developed and evaluated. It is based on an arc length redistribution scheme during the reconstruction. The free knot reconstruction allowed a more accurate reconstruction while reducing the noise level especially for fast changing TACs such as blood input functions. Limiting the number of temporal basis functions combined with the adaptive knot placing strategy is in this case advantageous for regularization purposes when compared to the other regularization techniques.

Verhaeghe, Jeroen; D'Asseler, Yves; Vandenberghe, Stefaan; Staelens, Steven; Lemahieu, Ignace [Department of Electronics and Information Systems, Medical Image and Signal Processing Group, Ghent University, Ghent, 9000 (Belgium)

2007-05-15T23:59:59.000Z

199

Reduction of Block Artifacts by Selective Removal and Reconstruction of  

E-Print Network (OSTI)

ABSTRACT: We present a new technique for saving data rate and improving the image quality in block-based coders for low-rate video transmission. The concept is based on the fact that blocking artifacts appear in the decoded image. For reducing these artifacts it is necessary to change pixel values near the block edges. By this means transmitted information is cancelled. Our technique excludes pixels around the block edges from transmission. Rows and columns between the blocks are cancelled. These lines are reconstructed in the decoder. The reconstruction acts like a low-pass filter and reduces blocking artifacts. The number of blocks to be transmitted has been diminished by cancelling pixels and data rate is saved while the image quality remains constant. Improvements of this concept have been implemented: The reconstruction of missing rows and columns is performed by subsampling and oversampling filters at the block edges. The motion estimation and compensation is related to the expanded and not to the reduced block grid. We demonstrate the improvement of the image quality for video communication by 64 kbit/s and below. 1.

The Block Borders; Stathis Panis; Robert Kutka; André Kaup

1997-01-01T23:59:59.000Z

200

EG G Mound Applied Technologies payroll system  

SciTech Connect

EG G Mound Applied Technologies, Inc., manages and operates the Mound Facility, Miamisburg, Ohio, under a cost-plus-award-fee contract administered by the Department of Energy's Albuquerque Field Office. The contractor's Payroll Department is responsible for prompt payment in the proper amount to all persons entitled to be paid, in compliance with applicable laws, regulations, and legal decisions. The objective was to determine whether controls were in place to avoid erroneous payroll payments. EG G Mound Applied Technologies, Inc., did not have all the internal controls required by General Accounting Office Title 6, Pay, Leave, and Allowances.'' Specifically, they did not have computerized edits, separation of duties and responsibilities, and restricted access to payroll data files. This condition occurred because its managers were not aware of Title 6 requirements. As a result, the contractor could not assure the Department of Energy that payroll costs were processes accurately; and fraud, waste, or abuse of Department of Energy funds could go undetected. Our sample of 212 payroll transactions from a population of 66,000 in FY 1991 disclosed only two minor processing errors and no instances of fraud, waste or abuse.

Not Available

1992-02-07T23:59:59.000Z

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201

MORPHOLOGICAL EVOLUTION OF A THREE-DIMENSIONAL CORONAL MASS EJECTION CLOUD RECONSTRUCTED FROM THREE VIEWPOINTS  

Science Conference Proceedings (OSTI)

The propagation properties of coronal mass ejections (CMEs) are crucial to predict its geomagnetic effect. A newly developed three-dimensional (3D) mask fitting reconstruction method using coronagraph images from three viewpoints has been described and applied to the CME ejected on 2010 August 7. The CME's 3D localization, real shape, and morphological evolution are presented. Due to its interaction with the ambient solar wind, the morphology of this CME changed significantly in the early phase of evolution. Two hours after its initiation, it was expanding almost self-similarly. The CME's 3D localization is quite helpful to link remote sensing observations to in situ measurements. The investigated CME was propagating to Venus with its flank just touching STEREO B. Its corresponding interplanetary CME in the interplanetary space shows a possible signature of a magnetic cloud with a preceding shock in Venus Express (VEX) observations, while from STEREO B only a shock is observed. We have calculated three principal axes for the reconstructed 3D CME cloud. The orientation of the major axis is, in general, consistent with the orientation of a filament (polarity inversion line) observed by SDO/AIA and SDO/HMI. The flux rope axis derived by the Minimal Variance Analysis from VEX indicates a radial-directed axis orientation. It might be that locally only the leg of the flux rope passed through VEX. The height and speed profiles from the Sun to Venus are obtained. We find that the CME speed possibly had been adjusted to the speed of the ambient solar wind flow after leaving the COR2 field of view and before arriving at Venus. A southward deflection of the CME from the source region is found from the trajectory of the CME geometric center. We attribute it to the influence of the coronal hole where the fast solar wind emanated from.

Feng, L.; Gan, W. Q. [Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, 210008 Nanjing (China); Inhester, B.; Wei, Y. [Max-Planck-Institut fuer Sonnensystemforschung, Max-Planck-Str.2, 37191 Katlenburg-Lindau (Germany); Zhang, T. L. [Space Research Institute, Austrian Academy of Sciences, 8042 Graz (Austria); Wang, M. Y., E-mail: lfeng@pmo.ac.cn [Shanghai Astronomical Observatory, Chinese Academy of Sciences, 200030 Shanghai (China)

2012-05-20T23:59:59.000Z

202

A Case Study of the Applied Learning Academy: Reconceptualized Quantum Design of Applied Learning  

E-Print Network (OSTI)

The purpose of this qualitative study was to examine the Applied Learning Academy (ALA) and allow the lessons learned from this public school to emerge from the narrative stories of past students, parents, teachers, administrators, and local business associates who have been directly involved and influenced by the applied learning teaching method. Accountability is critical for all public and charter schools. Districts have been trying to raise the standards with new programs and strategies in an effort to make learning experiences relevant to students? daily lives. Revisiting John Dewey?s philosophy from the progressive movement, project-based, service learning, community partnerships, and portfolio assessment helped to create the applied learning method. In the present study, a qualitative case study approach was utilized to identify successful factors, benefits, and drawbacks of applied learning in order to describe the transition of portfolio assessment, project-based learning, and community-based partnerships within the classroom and to understand the impact and misconceptions of applied learning as experienced through the Recognized Campus, ALA, a 6-8th public middle school within a large urban school district. Participant interviews, field observations, and historical records were collected which indicated that student centered project-based curriculum, small school size creating family relationships, community involvement with partnerships, service learning projects, and metacognitive development from portfolio assessments were the major factors that supported academic rigor and relevance because of the real educational applications in this applied learning middle school. Briefly defined, applied learning is when a problem is seen within the surrounding community, and the solution is generated by the students. This progressive 15-year impact of applied learning ultimately leads to the development of four applied learning schools despite the misconception that applied learning was a remedial or gifted program. Redefining applied learning for a better understanding developed a reconceptualized diagram borrowed from the quantum mechanics model. Reconceptualization expands the interpretation by increasing the intellectual flexibility. As the student becomes energized from the acquired knowledge of learning applicable skills through service learning, project-based curriculum, and portfolio assessment, the student?s academic growth should increase to a higher, educational ?energy level? supported by the critical, situated-learning, and feminist theories.

Gordon, Denise

2009-12-01T23:59:59.000Z

203

Applied Energy Management | Open Energy Information  

Open Energy Info (EERE)

Management Management Jump to: navigation, search Name Applied Energy Management Place Huntersville, North Carolina Zip 28078 Sector Efficiency, Renewable Energy Product North Carolina-based, energy efficiency and renewable energy service and construction company. Coordinates 35.409853°, -80.842716° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.409853,"lon":-80.842716,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

204

How to Apply for ENERGY STAR® Certification  

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

ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü ü "How To" Series How to Apply for ENERGY STAR ® Certification Commercial buildings that earn EPA's ENERGY STAR certification perform in the top 25 percent of similar buildings nationwide, as verified by a Licensed Professional (a Professional Engineer or a Registered Architect). ENERGY STAR certified buildings use an average of 35 percent less energy and are responsible for 35 percent fewer greenhouse gas emissions than average buildings. To qualify for the ENERGY STAR, a property must achieve an ENERGY STAR score of 75 or higher on EPA's 1 - 100 scale, which compares a property's energy performance to

205

FY 1990 Applied Sciences Branch annual report  

DOE Green Energy (OSTI)

The Applied Sciences Branch actively supports the advancement of DOE/SERI goals for the development and implementation of the solar photovoltaic technology. The primary focus of the laboratories is to provide state-of-the-art analytical capabilities for materials and device characterization and fabrication. The branch houses a comprehensive facility which is capable of providing information on the full range of photovoltaic components. A major objective of the branch is to aggressively pursue collaborative research with other government laboratories, universities, and industrial firms for the advancement of photovoltaic technologies. Members of the branch disseminate research findings to the technical community in publications and presentations. This report contains information on surface and interface analysis, materials characterization, development, electro-optical characterization module testing and performance, surface interactions and FTIR spectroscopy.

Keyes, B.M.; Dippo, P.C. (eds.)

1991-11-01T23:59:59.000Z

206

Navigating without vision: Basic and applied research  

E-Print Network (OSTI)

ABSTRACT: We describe some of the results of our program of basic and applied research on navigating without vision. One basic research topic that we have studied extensively is path integration, a form of navigation in which perceived self-motion is integrated over time to obtain an estimate of current posilion and orientation. In experiments on pathway completion, one test of path integration ability, we have found that subjects who are passively guided over the outbound path without vision exhibit significant errors when attempting to return to the origin but are nevertheless sensitive to turns and segment lengths in the stimulus path. We have also found no major differences in path inlegration ability among blirid and sighted populations. A model we havc developed that attributes errors in path integration to errors in encoding the stimulus path is a good beginning toward understanding path integration performance. In otber research on path integration, in which optic flow information was manipulated in addition to the proprioceptive and vestibular information of nonvisual locomotion, we havc found that optic flow is a weak input to the path integration process. In other basic research, our studies of auditory distance perception in outdoor environments show systematic underestimation oC sound source distance. Our applied research has been concerned with developing and evaluating a navigation system for the visually impaired that uses three recent technologies: the Global Positioning System, Geographic Information Systems, and virtual acouslics. Our work shows that there is considerable promise of these three technologies in allowing visually impaired individuals to navigate and learn about unfamiliar environments without the assistance of human guides. (Optoni Vis Sci 2001;78:282-289)

Jack M. Loomis; Roberta L. Klatzky; Reginald G. Golledge

2001-01-01T23:59:59.000Z

207

201/span>3 Short Course Applied Fundamentals in Interfacial Phenomena  

Science Conference Proceedings (OSTI)

Applied Fundamentals in Interfacial Phenomena Short Course held at the 104th AOCS Annual Meeting and Expo. 201/span>3 Short Course Applied Fundamentals in Interfacial Phenomena Applied Fundamentals in Interfacial Phenomena Saturday •

208

Remediation of Mercury and Industrial Contaminants Applied Field...  

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

Remediation of Mercury and Industrial Contaminants Applied Field Research Initiative (RoMIC-AFRI) Remediation of Mercury and Industrial Contaminants Applied Field Research...

209

Computational Advances in Applied Energy | Department of Energy  

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

Advances in Applied Energy Computational Advances in Applied Energy Friedmann-LLNL-SEAB.10.11.pdf More Documents & Publications Director's Perspective by George Miller...

210

Attenuation-Based Remedies in the Subsurface Applied Field Research...  

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

Subsurface Applied Field Research Initiative (ABRS AFRI) Located at the Savannah River Site in Aiken, South Carolina, the Attenuation-Based Remedies in the Subsurface Applied...

211

Applying Climate Information for Adaptation Decision-Making:...  

Open Energy Info (EERE)

Applying Climate Information for Adaptation Decision-Making: A Guidance and Resource Document Jump to: navigation, search Tool Summary Name: Applying Climate Information for...

212

Applying physics, teamwork to fusion energy science | Princeton...  

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

Applying physics, teamwork to fusion energy science American Fusion News Category: Massachusetts Institute of Technology (MIT) Link: Applying physics, teamwork to fusion energy...

213

A Nonparametric Bayesian Approach For Emission Tomography Reconstruction  

SciTech Connect

We introduce a PET reconstruction algorithm following a nonparametric Bayesian (NPB) approach. In contrast with Expectation Maximization (EM), the proposed technique does not rely on any space discretization. Namely, the activity distribution--normalized emission intensity of the spatial poisson process--is considered as a spatial probability density and observations are the projections of random emissions whose distribution has to be estimated. This approach is nonparametric in the sense that the quantity of interest belongs to the set of probability measures on R{sup k} (for reconstruction in k-dimensions) and it is Bayesian in the sense that we define a prior directly on this spatial measure. In this context, we propose to model the nonparametric probability density as an infinite mixture of multivariate normal distributions. As a prior for this mixture we consider a Dirichlet Process Mixture (DPM) with a Normal-Inverse Wishart (NIW) model as base distribution of the Dirichlet Process. As in EM-family reconstruction, we use a data augmentation scheme where the set of hidden variables are the emission locations for each observed line of response in the continuous object space. Thanks to the data augmentation, we propose a Markov Chain Monte Carlo (MCMC) algorithm (Gibbs sampler) which is able to generate draws from the posterior distribution of the spatial intensity. A difference with EM is that one step of the Gibbs sampler corresponds to the generation of emission locations while only the expected number of emissions per pixel/voxel is used in EM. Another key difference is that the estimated spatial intensity is a continuous function such that there is no need to compute a projection matrix. Finally, draws from the intensity posterior distribution allow the estimation of posterior functionnals like the variance or confidence intervals. Results are presented for simulated data based on a 2D brain phantom and compared to Bayesian MAP-EM.

Barat, Eric; Dautremer, Thomas [CEA Saclay, Electronics and Signal Processing Laboratory, 91191 Gif sur Yvette (France)

2007-11-13T23:59:59.000Z

214

Accelerated signal encoding and reconstruction using pixon method  

SciTech Connect

The method identifies a Pixon element, which is a fundamental and indivisible unit of information, and a Pixon basis, which is the set of possible functions from which the Pixon elements are selected. The actual Pixon elements selected from this basis during the reconstruction process represents the smallest number of such units required to fit the data and representing the minimum number of parameters necessary to specify the image. The Pixon kernels can have arbitrary properties (e.g., shape, size, and/or position) as needed to best fit the data.

Puetter, Richard (San Diego, CA); Yahil, Amos (Stony Brook, NY)

2002-01-01T23:59:59.000Z

215

Accelerated signal encoding and reconstruction using pixon method  

SciTech Connect

The method identifies a Pixon element, which is a fundamental and indivisible unit of information, and a Pixon basis, which is the set of possible functions from which the Pixon elements are selected. The actual Pixon elements selected from this basis during the reconstruction process represents the smallest number of such units required to fit the data and representing the minimum number of parameters necessary to specify the image. The Pixon kernels can have arbitrary properties (e.g., shape size, and/or position) as needed to best fit the data.

Puetter, Richard (San Diego, CA); Yahil, Amos (Stony Brook, NY)

2002-01-01T23:59:59.000Z

216

Reconstructing the History of Energy Condition Violation from Observational Data  

E-Print Network (OSTI)

We study the likelihood of energy condition violations in the history of the Universe. Our method is based on a set of functions that characterize energy condition violation. FLRW cosmological models are built around these "indication functions". By computing the Fisher matrix of model parameters using type Ia supernova and Hubble parameter data, we extract the principal modes of these functions' redshift evolution. These modes allow us to obtain uncorrelated reconstructions of energy condition violation history. We find that the data suggest a history of strong energy condition violation, but the null and dominant energy conditions are likely to be fulfilled.

Wu, Chao-Jian; Zhang, Tong-Jie

2011-01-01T23:59:59.000Z

217

Hanford Environmental Dose Reconstruction Project. Monthly report, June 1992  

Science Conference Proceedings (OSTI)

The objective of the Hanford Environmental Dose Reconstruction Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The project is being managed and conducted by the Battelle Pacific Northwest Laboratories under contract with the Centers for Disease Control. The independent Technical Steering Panel (TSP) provides technical direction. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed, from release to impact on humans (dose estimates): source terms; environmental transport; environmental monitoring data; demography, food consumption, and agriculture; environmental pathways and dose estimates.

Finch, S.M.; McMakin, A.H. [comps.

1992-06-01T23:59:59.000Z

218

Veterans ’ Advisory Board on Dose Reconstruction Board Member  

E-Print Network (OSTI)

dosimetric issues involved are complex and differ among the varied exposed populations: atomic veterans, U.S Department of Energy workers exposed to both penetrating radiation and intakes of radionuclides, nuclear power plant workers, medical radiation workers, and industrial radiographers. The NCRP report will cover the specifics of practical dose reconstruction for the ongoing epidemiologic studies with uncertainty analysis evaluation. Strengths and limitations of the approaches taken will be covered, as will brief mention of other unique exposure circumstances such as among astronauts in space (Cucinotta 2011) and the military personnel in Japan after the Fukushima reactor

Ncrp Dosimetry; Committee Million; Worker Study

2013-01-01T23:59:59.000Z

219

Validation of HEDR models. Hanford Environmental Dose Reconstruction Project  

Science Conference Proceedings (OSTI)

The Hanford Environmental Dose Reconstruction (HEDR) Project has developed a set of computer models for estimating the possible radiation doses that individuals may have received from past Hanford Site operations. This document describes the validation of these models. In the HEDR Project, the model validation exercise consisted of comparing computational model estimates with limited historical field measurements and experimental measurements that are independent of those used to develop the models. The results of any one test do not mean that a model is valid. Rather, the collection of tests together provide a level of confidence that the HEDR models are valid.

Napier, B.A.; Simpson, J.C.; Eslinger, P.W.; Ramsdell, J.V. Jr.; Thiede, M.E.; Walters, W.H.

1994-05-01T23:59:59.000Z

220

Petroleum complex of Russia. Reconstruction of petroleum refineries: Means for accomplishing the task  

SciTech Connect

This report describes the refining industry in Russia with respect to production and economic factors. The modernization and reconstruction of the refineries is also discussed.

Rykunova, T.

1994-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

Hanford Environmental Dose Reconstruction Project independent direction and oversight  

SciTech Connect

Hanford was selected in 1942 as one of the sites for the Manhattan Project. It produced plutonium for one of the world's first nuclear weapons. The US Department of Energy (DOE) and its predecessors continued to make plutonium for nuclear weapons at Hanford for more than four decades. In the early days of Hanford operations, radioactive materials routinely were released to the environment by many processes. The DOE disclosed documents about these releases in 1986. In 1987, Washington, Oregon, and regional Indian tribes gathered an independent panel of experts. This group recommended dose reconstruction and health effects feasibility studies. Later that year, DOE hired Battelle Pacific Northwest Laboratory (PNL) to reconstruct potential public radiation doses from Hanford's past releases of radioactive material. The DOE agreed with the states and tribes that project direction would come from an independent technical steering panel (TSP). This approach was critical to gain public credibility for the project and the science. The TSP directs the project and makes policy. That is now clear - but, it was hard-earned. Conducting science in an open public process is new, challenging, and clearly worthwhile. The panel's product is good science that is believed and accepted by the public - our client.

Blazek, M.L.; Power, M.

1991-01-01T23:59:59.000Z

222

A unified framework for exact cone-beam reconstruction formulas  

SciTech Connect

In this paper, we present concise proofs of several recently developed exact cone-beam reconstruction methods in the Tuy inversion framework, including both filtered-backprojection and backprojection-filtration formulas in the cases of standard spiral, nonstandard spiral, and more general scanning loci. While a similar proof of the Katsevich formula was previously reported, we present a new proof of the Zou and Pan backprojection-filtration formula. Our proof combines both odd and even data extensions so that only the cone-beam transform itself is utilized in the backprojection-filtration inversion. More importantly, our formulation is valid for general smooth scanning curves, in agreement with an earlier paper from our group [Ye, Zhao, Yu, and Wang, Proc. SPIE 5535, 293-300 (Aug. 6 2004)]. As a consequence of that proof, we obtain a new inversion formula, which is in a two-dimensional filtering backprojection format. A possibility for generalization of the Katsevich filtered-backprojection reconstruction method is also discussed from the viewpoint of this framework.

Zhao Shiying; Yu Hengyong; Wang Ge [CT/Micro-CT Laboratory, Department of Radiology University of Iowa, 200 Hawkins Drive Iowa City, Iowa 52242 (United States)

2005-06-15T23:59:59.000Z

223

Current profile reconstruction using electron temperature imaging diagnostics  

Science Conference Proceedings (OSTI)

Flux surface shape information can be used to constrain the current profile for reconstruction of the plasma equilibrium. One method of inferring flux surface shape relies on plasma x-ray emission; however, deviations from the flux surfaces due to impurity and density asymmetries complicate the interpretation. Electron isotherm surfaces should correspond well to the plasma flux surfaces, and equilibrium constraint modeling using this isotherm information constrains the current profile. The KFIT code is used to assess the profile uncertainty and to optimize the number, location and SNR required for the Te detectors. As Te imaging detectors we consider tangentially viewing, vertically spaced, linear gas electron multiplier arrays operated in pulse height analysis (PHA) mode and multifoil soft x-ray arrays. Isoflux coordinate sets provided by T{sub e} measurements offer a strong constraint on the equilibrium reconstruction in both a stacked horizontal array configuration and a crossed horizontal and vertical beam system, with q{sub 0} determined to within {+-}4%. The required SNR can be provided with either PHA or multicolor diagnostic techniques, though the multicolor system requires {approx}x4 better statistics for comparable final errors.

Tritz, K.; Stutman, D.; Delgado-Aparicio, L.F.; Finkenthal, M.; Pacella, D.; Kaita, R.; Stratton, B.; Sabbagh, S. [Johns Hopkins University, Department of Physics and Astronomy, Plasma Spectroscopy Group, Bloomberg Center, 3400 N. Charles Street, Baltimore, Maryland 21218 (United States); Associazione ENEA-EURATOM sulla Fusione, ENEA, Frascati (Italy); Princeton University Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States); Columbia University, New York, New York 10027 (United States)

2004-10-01T23:59:59.000Z

224

Dynamic Data-Driven Event Reconstruction for Atmospheric Releases  

SciTech Connect

Accidental or terrorist releases of hazardous materials into the atmosphere can impact large populations and cause significant loss of life or property damage. Plume predictions have been shown to be extremely valuable in guiding an effective and timely response. The two greatest sources of uncertainty in the prediction of the consequences of hazardous atmospheric releases result from poorly characterized source terms and lack of knowledge about the state of the atmosphere as reflected in the available meteorological data. In this report, we discuss the development of a new event reconstruction methodology that provides probabilistic source term estimates from field measurement data for both accidental and clandestine releases. Accurate plume dispersion prediction requires the following questions to be answered: What was released? When was it released? How much material was released? Where was it released? We have developed a dynamic data-driven event reconstruction capability which couples data and predictive models through Bayesian inference to obtain a solution to this inverse problem. The solution consists of a probability distribution of unknown source term parameters. For consequence assessment, we then use this probability distribution to construct a ''''composite'' forward plume prediction which accounts for the uncertainties in the source term. Since in most cases of practical significance it is impossible to find a closed form solution, Bayesian inference is accomplished by utilizing stochastic sampling methods. This approach takes into consideration both measurement and forward model errors and thus incorporates all the sources of uncertainty in the solution to the inverse problem. Stochastic sampling methods have the additional advantage of being suitable for problems characterized by a non-Gaussian distribution of source term parameters and for cases in which the underlying dynamical system is non-linear. We initially developed a Markov Chain Monte Carlo (MCMC) stochastic methodology and demonstrated its effectiveness by reconstructing a wide range of release scenarios, using synthetic as well as real-world data. Data for evaluation of our event reconstruction capability were drawn from the short-range Prairie Grass, Copenhagen, and Joint Urban 2003 field experiments and a continental-scale real-world accidental release in Algeciras, Spain. The method was tested using a variety of forward models, including a Gaussian puff dispersion model INPUFF, the regional-to-continental scale Lagrangian dispersion model LODI (the work-horse real-time operational dispersion model used by the National Atmospheric Release Advisory Center), the empirical urban model UDM, and the building-scale computational computational fluid dynamics code FEM3MP. The robustness of the Bayesian methodology was demonstrated via the use of subsets of the available concentration data and by introducing error into some of the measurements. These tests showed that the Bayesian approach is capable of providing reliable estimates of source characteristics even in cases of limited or significantly corrupted data. For more effective treatment of strongly time-dependent problems, we developed a Sequential Monte Carlo (SMC) approach. To achieve the best performance under a wide range of conditions we combined SMC and MCMC sampling into a hybrid methodology. We compared the effectiveness and advantages of this approach relative to MCMC using a set of synthetic data examples. Our dynamic data-driven event reconstruction capability seamlessly integrates observational data streams with predictive models, in order to provide the best possible estimates of unknown source term parameters, as well as optimal and timely situation analyses consistent with both models and data.

Kosovic, B; Belles, R; Chow, F K; Monache, L D; Dyer, K; Glascoe, L; Hanley, W; Johannesson, G; Larsen, S; Loosmore, G; Lundquist, J K; Mirin, A; Neuman, S; Nitao, J; Serban, R; Sugiyama, G; Aines, R

2007-02-22T23:59:59.000Z

225

Categorical Exclusion Determinations: NNSA-Headquarters | Department of  

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

March 11, 2010 March 11, 2010 CX-002257: Categorical Exclusion Determination Drilling Research Intermediate Level System Project Activities CX(s) Applied: B3.11 Date: 03/11/2010 Location(s): New Mexico Office(s): NNSA-Headquarters, Sandia Site Office March 9, 2010 CX-002260: Categorical Exclusion Determination Penetrator Testing with Mobile Gas Guns and Mobile Davis Guns CX(s) Applied: B3.11 Date: 03/09/2010 Location(s): Socorro, New Mexico Office(s): NNSA-Headquarters, Sandia Site Office March 9, 2010 CX-002259: Categorical Exclusion Determination Genetic Engineering of Cyanobacteria as Biodiesel Feedstock CX(s) Applied: B3.12 Date: 03/09/2010 Location(s): New Mexico Office(s): NNSA-Headquarters, Sandia Site Office March 9, 2010 CX-002258: Categorical Exclusion Determination Reconstruct East Roadway in Tech Area III

226

Categorical Exclusion Determinations: Sandia Site Office | Department of  

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

March 11, 2010 March 11, 2010 CX-002257: Categorical Exclusion Determination Drilling Research Intermediate Level System Project Activities CX(s) Applied: B3.11 Date: 03/11/2010 Location(s): New Mexico Office(s): NNSA-Headquarters, Sandia Site Office March 9, 2010 CX-002260: Categorical Exclusion Determination Penetrator Testing with Mobile Gas Guns and Mobile Davis Guns CX(s) Applied: B3.11 Date: 03/09/2010 Location(s): Socorro, New Mexico Office(s): NNSA-Headquarters, Sandia Site Office March 9, 2010 CX-002259: Categorical Exclusion Determination Genetic Engineering of Cyanobacteria as Biodiesel Feedstock CX(s) Applied: B3.12 Date: 03/09/2010 Location(s): New Mexico Office(s): NNSA-Headquarters, Sandia Site Office March 9, 2010 CX-002258: Categorical Exclusion Determination Reconstruct East Roadway in Tech Area III

227

Page not found | Department of Energy  

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

51 - 4060 of 28,905 results. 51 - 4060 of 28,905 results. Download CX-006857: Categorical Exclusion Determination Building 840 Seismic Code Upgrades CX(s) Applied: B1.15, B2.1 Date: 09/06/2011 Location(s): Albuquerque, New Mexico Office(s): NNSA-Headquarters, Sandia Site Office http://energy.gov/nepa/downloads/cx-006857-categorical-exclusion-determination Download CX-002258: Categorical Exclusion Determination Reconstruct East Roadway in Tech Area III CX(s) Applied: B1.3 Date: 03/09/2010 Location(s): New Mexico Office(s): NNSA-Headquarters, Sandia Site Office http://energy.gov/nepa/downloads/cx-002258-categorical-exclusion-determination Download CX-006953: Categorical Exclusion Determination Mesofluidic System for Automated Proteins Enrichment CX(s) Applied: B3.6 Date: 08/03/2011 Location(s): Albuquerque, New Mexico

228

Benchmarking the Bayesian reconstruction of the non-perturbative heavy $Q\\bar{Q}$ potential  

E-Print Network (OSTI)

The extraction of the finite temperature heavy quark potential from lattice QCD relies on a spectral analysis of the real-time Wilson loop. Through its position and shape, the lowest lying spectral peak encodes the real and imaginary part of this complex potential. We benchmark this extraction strategy using leading order hard-thermal loop (HTL) calculations. I.e. we analytically calculate the Wilson loop and determine the corresponding spectrum. By fitting its lowest lying peak we obtain the real- and imaginary part and confirm that the knowledge of the lowest peak alone is sufficient for obtaining the potential. We deploy a novel Bayesian approach to the reconstruction of spectral functions to HTL correlators in Euclidean time and observe how well the known spectral function and values for the real and imaginary part are reproduced. Finally we apply the method to quenched lattice QCD data and perform an improved estimate of both real and imaginary part of the non-perturbative heavy $Q\\bar{Q}$ potential.

Yannis Burnier; Alexander Rothkopf

2013-10-01T23:59:59.000Z

229

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

E-Print Network (OSTI)

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

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

2013-01-01T23:59:59.000Z

230

RECONSTRUCTING THE HISTORY OF ENERGY CONDITION VIOLATION FROM OBSERVATIONAL DATA  

Science Conference Proceedings (OSTI)

We study the likelihood of energy condition violations in the history of the universe. Our method is based on a set of functions that characterize energy condition violation. Friedmann-Lemaitre-Robertson-Walker cosmological models are built around these 'indication functions'. By computing the Fisher matrix of model parameters using Type Ia supernova and Hubble parameter data, we extract the principal modes of these functions' redshift evolution. These modes allow us to obtain general reconstructions of energy condition violation history independent of the dark energy model. We find that the data suggest a history of strong energy condition violation, but the null and dominant energy conditions are likely to be fulfilled. Implications for dark energy models are discussed.

Wu Chaojian; Ma Cong; Zhang Tongjie, E-mail: tjzhang@bnu.edu.cn [Department of Astronomy, Beijing Normal University, Beijing 100875 (China)

2012-07-10T23:59:59.000Z

231

Post-refinement multiscale method for pin power reconstruction  

SciTech Connect

The ability to accurately predict local pin powers in nuclear reactors is necessary to understand the mechanisms that cause fuel pin failure during steady state and transient operation. In the research presented here, methods are developed to improve the local solution using high order methods with boundary conditions from a low order global solution. Several different core configurations were tested to determine the improvement in the local pin powers compared to the standard techniques based on diffusion theory and pin power reconstruction (PPR). The post-refinement multiscale methods use the global solution to determine boundary conditions for the local solution. The local solution is solved using either a fixed boundary source or an albedo boundary condition; this solution is 'post-refinement' and thus has no impact on the global solution. (authors)

Collins, B.; Seker, V.; Downar, T. [Dept. of Nuclear Engineering and Radiological Sciences, Univ. of Michigan, 2355 Bonisteel Blvd., Ann Arbor, MI 48109 (United States); Xu, Y. [Argonne National Laboratory (United States)

2012-07-01T23:59:59.000Z

232

Provably convergent coordinate descent in statistical tomographic reconstruction  

E-Print Network (OSTI)

Statistical tomographic reconstruction algorithms generally require the efficient optimization of a functional. A recent algorithm known as iterative coordinate descent with Newton-Raphson updates (ICD/NR) has been shown to be much more computationally efficient than indirect optimization approaches based on the EM algorithm. However, while the ICD/NR algorithm has experimentally been shown to converge stably, no theoretical proof of convergence is known. In this paper, we prove that a modified algorithm, which we call ICD functional substitution (ICD/FS), has guaranteed global convergence in addition to the computational efficiency of ICD/NR. The ICD/FS method works by approximating the log likelihood at each pixel by an alternative quadratic functional. Experimental results show that the convergence speed of the globally convergent algorithm is nearly identical to that of ICD/NR. 1.

Suhail Saquib; Jun Zheng; Charles A. Bouman; Ken D. Sauer

1996-01-01T23:59:59.000Z

233

Automated Dna Curvature Profile Reconstruction In Atomic Force  

E-Print Network (OSTI)

An automated algorithm is presented to determine the DNA molecule intrinsic curvature profiles and the molecular spatial orientations in Atomic Force Microscope images. The curvature is composed by static and dynamic contributions. The first one is the intrinsic curvature, vectorial function of the DNA nucletide sequence, while the second one is due to thermal noise. This algorithm allows to reconstruct the intrinsic curvature profile excluding the thermal contribution and detects fragment orientation on AFM image with a percentage of molecular-orientation detection of 96.79 % for molecules with a high curvature peak. The automated approach allows to minimize the processing time compared to semi-automated methods, avoids errors introduced from operator bias and increases the amount of available information.

Microscope Images Elisa; Elisa Ficarra; Daniele Masotti; Luca Benini; Michela Milano

2002-01-01T23:59:59.000Z

234

Dynamic Data-Driven Event Reconstruction for Atmospheric Releases  

SciTech Connect

Accidental or terrorist releases of hazardous materials into the atmosphere can impact large populations and cause significant loss of life or property damage. Plume predictions have been shown to be extremely valuable in guiding an effective and timely response. The two greatest sources of uncertainty in the prediction of the consequences of hazardous atmospheric releases result from poorly characterized source terms and lack of knowledge about the state of the atmosphere as reflected in the available meteorological data. We have developed a new event reconstruction methodology that provides probabilistic source term estimates from field measurement data for both accidental and clandestine releases. Accurate plume dispersion prediction requires the following questions to be answered: What was released? When was it released? How much material was released? Where was it released? We have developed a dynamic-data-driven event reconstruction capability that couples data and predictive methods through Bayesian inference to obtain a solution to this inverse problem. The solution consists of a probability distribution of unknown source term parameters. For consequence assessment, we then use this probability distribution to construct a 'composite' forward plume prediction that accounts for the uncertainties in the source term. Since in most cases of practical significance it is impossible to find a closed form solution, Bayesian inference is accomplished by utilizing stochastic sampling methods. This approach takes into consideration both measurement and forward model errors and thus incorporates all the sources of uncertainty in the solution to the inverse problem. Stochastic sampling methods have the additional advantage of being suitable for problems characterized by a non-Gaussian distribution of source term parameters and for cases in which the underlying dynamical system is nonlinear. We initially developed a Markov Chain Monte Carlo (MCMC) stochastic methodology and demonstrated its effectiveness by reconstructing a wide range of release scenarios, using synthetic as well as real-world data. Data for evaluation of our event reconstruction capability were drawn from the short-range Prairie Grass, Copenhagen, and Joint Urban 2003 field experiments and a continental-scale real-world accidental release in Algeciras, Spain. The method was tested using a variety of forward models, including a Gaussian puff dispersion model INPUFF, the regional-to-continental scale Lagrangian dispersion model LODI (the work-horse real-time operational dispersion model used by the National Atmospheric Release Advisory Center), the empirical urban model UDM, and the building-scale computational fluid dynamics code FEM3MP. The robustness of the Bayesian methodology was demonstrated via the use of subsets of the available concentration data and by introducing error into some of the measurements (Fig. 1). These tests showed that the Bayesian approach is capable of providing reliable estimates of source characteristics even in cases of limited or significantly corrupted data. An example of an urban release scenario is shown in Fig. 2. For more effective treatment of strongly time-dependent problems, we developed a Sequential Monte Carlo (SMC) approach. To achieve the best performance under a wide range of conditions we combined SMC and MCMC sampling into a hybrid methodology. We compared the effectiveness and advantages of this approach relative to MCMC using a set of synthetic data examples. We created a modular, scalable computational framework to accommodate the full set of stochastic methodologies (e.g., MCMC, SMC, hybrid stochastic algorithms, 'Green's function', 'reciprocal' methods), as well as a selection of key classes of dispersion models. This design provides a clear separation of stochastic algorithms from predictive models and supports parallelization at both the stochastic algorithm and individual model level. In other words, it supports a parallel stochastic algorithm (e.g., SMC) that invokes parallel forward models. The framework is

Mirin, A A; Kosovic, B

2007-03-29T23:59:59.000Z

235

Dynamic Data-Driven Event Reconstruction for Atmospheric Releases  

SciTech Connect

For atmospheric releases, event reconstruction answers the critical questions - How much material was released? When? Where? and What are the potential consequences? Inaccurate estimation of the source term can lead to gross errors, time delays during a crisis, and even fatalities. We are developing a capability that seamlessly integrates observational data streams with predictive models in order to provide the best possible estimates of unknown source term parameters, as well as optimal and timely situation analyses consistent with both models and data. Our approach utilizes Bayesian inference and stochastic sampling methods (Markov Chain and Sequential Monte Carlo) to reformulate the inverse problem into a solution based on efficient sampling of an ensemble of predictive simulations, guided by statistical comparisons with data.

Sugiyama, G; Kosovic, B; Hanley, W; Johannesson, G; Larsen, S; Loosmore, G; Lundquist, J; Mirin, A; Nitao, J; Serban, R; Dyer, K

2004-10-13T23:59:59.000Z

236

Reconstructing the History of Energy Condition Violation from Observational Data  

E-Print Network (OSTI)

We study the likelihood of energy condition violations in the history of the Universe. Our method is based on a set of functions that characterize energy condition violation. FLRW cosmological models are built around these "indication functions". By computing the Fisher matrix of model parameters using type Ia supernova and Hubble parameter data, we extract the principal modes of these functions' redshift evolution. These modes allow us to obtain general reconstructions of energy condition violation history independent of the dark energy model. We find that the data suggest a history of strong energy condition violation, but the null and dominant energy conditions are likely to be fulfilled. Implications for dark energy models are discussed.

Chao-Jian Wu; Cong Ma; Tong-Jie Zhang

2011-10-20T23:59:59.000Z

237

Joint Multi-Layer Segmentation and Reconstruction for Free-Viewpoint Video Applications  

Science Conference Proceedings (OSTI)

Current state-of-the-art image-based scene reconstruction techniques are capable of generating high-fidelity 3D models when used under controlled capture conditions. However, they are often inadequate when used in more challenging environments such as ... Keywords: Free-viewpoint video, Graph-cuts, Reconstruction, Segmentation

Jean-Yves Guillemaut; Adrian Hilton

2011-05-01T23:59:59.000Z

238

A multiple camera system with real-time volume reconstruction for articulated skeleton pose tracking  

Science Conference Proceedings (OSTI)

We present a multi-camera system for recovering skeleton body pose, by performing real-time volume reconstruction and using a hierarchical stochastic pose search algorithm. Different from many multicamera systems that require a few connected workstations, ... Keywords: multi-camera system, pose estimation, real-time volume reconstruction

Zheng Zhang; Hock Soon Seah; Chee Kwang Quah; Alex Ong; Khalid Jabbar

2011-01-01T23:59:59.000Z

239

CALTECH ASCI TECHNICAL REPORT 165 Reconstruction of subgrid models for nonpremixed combustion  

E-Print Network (OSTI)

CALTECH ASCI TECHNICAL REPORT 165 Reconstruction of subgrid models for nonpremixed combustion J. P. Medallo, S. Sarkar and C. Pantano #12;Reconstruction subgrid models for nonpremixed combustion J. P 2003; published 16 September 2003 Large-eddy simulation of combustion problems involves highly

240

Three dimensional reconstruction of aerogels from TEM images Florence Despetis1,2  

E-Print Network (OSTI)

Three dimensional reconstruction of aerogels from TEM images Florence Despetis1,2 ,Nadjette to compute their physical properties. We focus here on base catalyzed and colloidal silica aerogels, which are fractal materials and we use an original method for the reconstruction of these aerogels from TEM images

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

High-Performance Three-Dimensional Image Reconstruction for Molecular Structure Determination  

Science Conference Proceedings (OSTI)

We describe an efficient parallel implementation of a reliable iterative reconstruction algorithm for estimating the three-dimensional (3D) density map of a macromolecular complex from a large number of two-dimensional (2D) cryo-electron microscopy (Cryo-EM) ... Keywords: 3D image reconstruction, Cryo-EM, parallel computing, regularization

Julianne Chung; Philip Sternberg; Chao Yang

2010-05-01T23:59:59.000Z

242

Point-wise hierarchical reconstruction for discontinuous Galerkin and finite volume methods for solving conservation laws  

Science Conference Proceedings (OSTI)

We develop a new hierarchical reconstruction (HR) method [17,28] for limiting solutions of the discontinuous Galerkin and finite volume methods up to fourth order of accuracy without local characteristic decomposition for solving hyperbolic nonlinear ... Keywords: Discontinous Galerkin method, Finite volume method, Hierarchical reconstruction, Hyperbolic conservation laws, Limiter

Zhiliang Xu; Yingjie Liu; Huijing Du; Guang Lin; Chi-Wang Shu

2011-07-01T23:59:59.000Z

243

Reconstructing the music hall rotunda and annex at vauxhall pleasure gardens c. 1764  

Science Conference Proceedings (OSTI)

This paper summarises work in progress on the digital reconstruction of the structure, space and decorative program of the music hall and annex at Vauxhall Pleasure Gardens c. 1764. The proposed outcome will be a recreation of the space and its contents ... Keywords: animation, gallery display, historic sites, music, reconstructive architecture, visualisation

Stephen Caffey; Robert G. Graf; Charles Culp; Wei Yan; Ehsan Barekati; Matthew Marshall

2010-07-01T23:59:59.000Z

244

An efficient correction procedure via reconstruction for simulation of viscous flow on moving and deforming domains  

Science Conference Proceedings (OSTI)

In this paper, we report the development of a new parallel solver using the Correction Procedure via Reconstruction (CPR) for viscous flows on moving and deforming grids. By employing an accurate treatment of flux derivatives for moving and deforming ... Keywords: Correction procedure via reconstruction, Moving and deforming grids, Parallel Navier-Stokes solver, Quadrilateral element, Unstructured grid

Chunlei Liang, Koji Miyaji, Bin Zhang

2014-01-01T23:59:59.000Z

245

Neural Network Based Approaches, Solving Haplotype Reconstruction in MEC and MEC/GI Models  

Science Conference Proceedings (OSTI)

SNPs (Single Nucleotide Polymorphism) are different variant positions (1% of DNA sequence) of human genomes which their mutation is associated with complex genetic diseases. As a consequence, obtaining all SNPs from human populations is one of the primary ... Keywords: Bioinformatics, biology and genomics, haplotype reconstruction, SNP fragments, clustering, genotype information, haplotype, reconstruction rate, unsupervised neural network

M-Hossein Moeinzadeh; Ehsan Asgarian; Sara Sharifian-R; Amir Najafi-Ardabili; Javad Mohammadzadeh

2008-05-01T23:59:59.000Z

246

Dynamic Data-Driven Event Reconstruction for Atmospheric Releases  

SciTech Connect

The role of an event reconstruction capability in a case of an atmospheric release is to characterize the source by answering the critical questions--How much material was released? When? Where? and What are the potential consequences? Accurate estimation of the source term is essential to accurately predict plume dispersion, effectively manage the emergency response, and mitigate consequences in a case of an atmospheric release of hazardous material. We are developing a capability that seamlessly integrates observational data streams with predictive models in order to provide probabilistic estimates of unknown source term parameters consistent with both data and model predictions. Our approach utilizes Bayesian inference with stochastic sampling using Markov Chain and Sequential Monte Carlo methodology. The inverse dispersion problem is reformulated into a solution based on efficient sampling of an ensemble of predictive simulations, guided by statistical comparisons with data. We are developing a flexible and adaptable data-driven event-reconstruction capability for atmospheric releases that provides (1) quantitative probabilistic estimates of the principal source-term parameters (e.g., the time-varying release rate and location); (2) predictions of increasing fidelity as an event progresses and additional data become available; and (3) analysis tools for sensor network design and uncertainty studies. Our computational framework incorporates multiple stochastic algorithms, operates with a range and variety of atmospheric models, and runs on multiple computer platforms, from workstations to large-scale computing resources. Our final goal is a multi-resolution capability for both real-time operational response and high fidelity multi-scale applications.

Mirin, A A; Kosovic, B

2006-04-19T23:59:59.000Z

247

Monthly Mean Pressure Reconstructions for Europe (1780-1980) and North  

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

Monthly Mean Pressure Reconstructions for Europe (1780-1980) and North Monthly Mean Pressure Reconstructions for Europe (1780-1980) and North America (1858-1980) (1987) (NDP-025) DOI: 10.3334/CDIAC/cli.ndp025 image Data Investigators P. D. Jones, T. M. L. Wigley, and K. R. Briffa Real and reconstructed measurements of monthly mean pressure data have been constructed for Europe for 1780 through 1980 and North America for 1858 through 1980. The reconstructions use early pressure, temperature, and precipitation data from a variety of sources including World Weather Records, meteorological and national archives, circulation maps, and daily chart series. Each record contains the year, monthly mean pressure, quality code, and annual mean pressure. These reconstructed gridded monthly pressures provide a reliable historical record of mean sea-level pressures

248

Analytical model for event reconstruction in coplanar grid CdZnTe detectors  

E-Print Network (OSTI)

Coplanar-grid (CPG) particle detectors were designed for materials such as CdZnTe (CZT) in which charge carriers of only one sign have acceptable transport properties. The presence of two independent anode signals allows for a reconstruction of deposited energy based on the difference between the two signals, and a reconstruction of the interaction depth based on the ratio of the amplitudes of the sum and difference of the signals. Energy resolution is greatly improved by modifying the difference signal with an empirically determined weighting factor to correct for the effects of electron trapping. In this paper is introduced a modified interaction depth reconstruction formula which corrects for electron trapping utilizing the same weighting factor used for energy reconstruction. The improvement of this depth reconstruction over simpler formulas is demonstrated. Further corrections due to the contribution of hole transport to the signals are discussed.

Matthew Fritts; Jürgen Durst; Thomas Göpfert; Thomas Wester; Kai Zuber

2012-11-28T23:59:59.000Z

249

Analytical model for event reconstruction in coplanar grid CdZnTe detectors  

E-Print Network (OSTI)

Coplanar-grid (CPG) particle detectors were designed for materials such as CdZnTe (CZT) in which charge carriers of only one sign have acceptable transport properties. The presence of two independent anode signals allows for a reconstruction of deposited energy based on the difference between the two signals, and a reconstruction of the interaction depth based on the ratio of the amplitudes of the sum and difference of the signals. Energy resolution is greatly improved by modifying the difference signal with an empirically determined weighting factor to correct for the effects of electron trapping. In this paper is introduced a modified interaction depth reconstruction formula which corrects for electron trapping utilizing the same weighting factor used for energy reconstruction. The improvement of this depth reconstruction over simpler formulas is demonstrated. Further corrections due to the contribution of hole transport to the signals are discussed.

Fritts, Matthew; Göpfert, Thomas; Wester, Thomas; Zuber, Kai

2012-01-01T23:59:59.000Z

250

Applied Science and Technology Task Order Fiscal Year 2009 Year...  

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

09 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2009 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2009 Year-End...

251

Applied Science and Technology Task Order Fiscal Year 2010 Year...  

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

0 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2010 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2010 Year-End...

252

Applied Science and Technology Task Order Fiscal Year 2011 Year...  

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

1 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2011 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2011 Year-End...

253

Applied Science and Technology Task Order Fiscal Year 2008 Year...  

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

8 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2008 Year-End Summary Report Applied Science and Technology Task Order Fiscal Year 2008 Year-End...

254

Proceedings of the 2011 ACM Symposium on Applied Computing  

Science Conference Proceedings (OSTI)

Welcome to the 26th International Symposium on Applied Computing (SAC 2011). For the past 25 years, SAC has become a major international venue for computing researchers and applied practitioners to convene and share ideas on recent developments in a ...

William Chu; W. Eric Wong; Mathew J. Palakal; Chih-Cheng Hung

2011-03-01T23:59:59.000Z

255

Proceedings of the 2010 ACM Symposium on Applied Computing  

Science Conference Proceedings (OSTI)

Welcome to the 25th International Symposium on Applied Computing (SAC 2010). For the past 24 years, SAC has become a major international venue for computing researchers and applied practitioners to convene and share ideas on recent developments in a ...

Sung Y. Shin; Sascha Ossowski; Michael Schumacher; Mathew J. Palakal; Chih-Cheng Hung

2010-03-01T23:59:59.000Z

256

DOE - Office of Legacy Management -- Case School of Applied Science...  

Office of Legacy Management (LM)

Case School of Applied Science Ohio State University - OH 0-01 FUSRAP Considered Sites Site: Case School of Applied Science, Ohio State University (OH.0-01 ) Eliminated from...

257

Roadmap: Applied Engineering Manufacturing Systems Bachelor of Science  

E-Print Network (OSTI)

Roadmap: Applied Engineering ­ Manufacturing Systems ­ Bachelor of Science [AT 15000 Introduction to Human Communication 3 Fulfills Kent Core Additional Kent Core Requirement 3 See #12;Roadmap: Applied Engineering ­ Manufacturing Systems ­ Bachelor of Science [AT

Sheridan, Scott

258

Open Solicitations and How to Apply: the Loan Guarantee Program...  

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

Open Solicitations and How to Apply: the Loan Guarantee Program Invites You to a Free Webinar Open Solicitations and How to Apply: the Loan Guarantee Program Invites You to a Free...

259

PLZT NANO PRE URSORS FOR HIGH ENERGY DENSITY APPLI ATIONS  

APPLI ATIONS & INDUSTRIES ENEFITS Pulsed Power Oil Exploration Capacitors Refer to SD # 12119 Thermistors Transducers Military & Defense Automotive

260

Dixson and Fu Receive NIST Applied Research Award  

Science Conference Proceedings (OSTI)

Dixson and Fu Receive NIST Applied Research Award. For Immediate Release: December 1, 1999. *. Bookmark and Share. ...

2013-07-19T23:59:59.000Z

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

Materials Research Applied to National Needs (MARANN) in Honor ...  

Science Conference Proceedings (OSTI)

Jul 31, 2012 ... About this Symposium. Meeting, 2013 TMS Annual Meeting & Exhibition. Symposium, Materials Research Applied to National Needs ...

262

PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING 1 ADVISER: Immersive Scientific Visualization Applied  

E-Print Network (OSTI)

be applied to the terrain (Figure 2b). A custom pixel shader was integrated with ROAM to render the dynamic

Head III, James William

263

Reconstruction of the Extratropical NH Mean Temperature over the Last Millennium with a Method that Preserves Low-Frequency Variability  

Science Conference Proceedings (OSTI)

A new multiproxy reconstruction of the Northern Hemisphere extratropical mean temperature over the last millennium is presented. The reconstruction is performed with a novel method designed to avoid the underestimation of low-frequency variability ...

Bo Christiansen; Fredrik Charpentier Ljungqvist

2011-12-01T23:59:59.000Z

264

A Multicentury Reconstruction of May Precipitation for the Mid-Atlantic Region Using Juniperus virginiana Tree Rings  

Science Conference Proceedings (OSTI)

This paper presents a multicentury reconstruction of May precipitation (1200–1997) for the mid-Atlantic region of the United States. The reconstruction is based on the first principal component (PC1) of two millennial-length Juniperus virginiana ...

R. Stockton Maxwell; Amy E. Hessl; Edward R. Cook; Brendan M. Buckley

2012-02-01T23:59:59.000Z

265

Conservative Transport Schemes for Spherical Geodesic Grids: High-Order Reconstructions for Forward-in-Time Schemes  

Science Conference Proceedings (OSTI)

The finite-volume transport scheme of Miura, for icosahedral–hexagonal meshes on the sphere, is extended by using higher-order reconstructions of the transported scalar within the formulation. The use of second- and fourth-order reconstructions, ...

William C. Skamarock; Maximo Menchaca

2010-12-01T23:59:59.000Z

266

ISHED1: Applying the LEM Methodology to Heat Exchanger Design  

E-Print Network (OSTI)

ISHED1: Applying the LEM Methodology to Heat Exchanger Design Kenneth A. Kaufman Ryszard S. Michalski MLI 00-2 #12;2 ISHED1: APPLYING THE LEM METHODOLOGY TO HEAT EXCHANGER DESIGN Kenneth A. Kaufman-2 January 2000 #12;ISHED1: APPLYING THE LEM METHODOLOGY TO HEAT EXCHANGER DESIGN Abstract Evolutionary

Michalski, Ryszard S.

267

Quantifying the Impact of Immediate Reconstruction in Postmastectomy Radiation: A Large, Dose-Volume Histogram-Based Analysis  

SciTech Connect

Purpose: To assess the impact of immediate breast reconstruction on postmastectomy radiation (PMRT) using dose-volume histogram (DVH) data. Methods and Materials: Two hundred forty-seven women underwent PMRT at our center, 196 with implant reconstruction and 51 without reconstruction. Patients with reconstruction were treated with tangential photons, and patients without reconstruction were treated with en-face electron fields and customized bolus. Twenty percent of patients received internal mammary node (IMN) treatment. The DVH data were compared between groups. Ipsilateral lung parameters included V20 (% volume receiving 20 Gy), V40 (% volume receiving 40 Gy), mean dose, and maximum dose. Heart parameters included V25 (% volume receiving 25 Gy), mean dose, and maximum dose. IMN coverage was assessed when applicable. Chest wall coverage was assessed in patients with reconstruction. Propensity-matched analysis adjusted for potential confounders of laterality and IMN treatment. Results: Reconstruction was associated with lower lung V20, mean dose, and maximum dose compared with no reconstruction (all P<.0001). These associations persisted on propensity-matched analysis (all P<.0001). Heart doses were similar between groups (P=NS). Ninety percent of patients with reconstruction had excellent chest wall coverage (D95 >98%). IMN coverage was superior in patients with reconstruction (D95 >92.0 vs 75.7%, P<.001). IMN treatment significantly increased lung and heart parameters in patients with reconstruction (all P<.05) but minimally affected those without reconstruction (all P>.05). Among IMN-treated patients, only lower lung V20 in those without reconstruction persisted (P=.022), and mean and maximum heart doses were higher than in patients without reconstruction (P=.006, P=.015, respectively). Conclusions: Implant reconstruction does not compromise the technical quality of PMRT when the IMNs are untreated. Treatment technique, not reconstruction, is the primary determinant of target coverage and normal tissue doses.

Ohri, Nisha [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Cordeiro, Peter G. [Department of Plastic Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Plastic Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Keam, Jennifer [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Ballangrud, Ase [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Shi Weiji; Zhang Zhigang [Department of Biostatistics and Epidemiology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Biostatistics and Epidemiology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Nerbun, Claire T.; Woch, Katherine M.; Stein, Nicholas F.; Zhou Ying [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); McCormick, Beryl; Powell, Simon N. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Ho, Alice Y., E-mail: HoA1234@mskcc.org [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)

2012-10-01T23:59:59.000Z

268

Electron cyclotron emission reconstruction image and m/n=3/2 mode in HT-7 tokamak  

SciTech Connect

Electron cyclotron emission reconstruction image has been used for flux surface reconstruction. The reconstruction image is based on plasma rigid rotation which is obtained from Mirnov diagnostic. From the reconstructed two-dimensional flux surface, the classical m/n=3/2 mode is visualized, which is of similar spatial structure as neoclassical 3/2 mode observed in some other tokamaks [B. Esposito et al., Phys. Rev. Lett. 100, 045006 (2008)].

Li Erzhong; Hu Liqun; Ling Bili; Liu Yong; Ti Ang; Chen Kaiyun; Shen Biao; Gao Xiang [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China)

2010-07-15T23:59:59.000Z

269

Applying Innovation System Concept in Agricultural Research for  

Open Energy Info (EERE)

Applying Innovation System Concept in Agricultural Research for Applying Innovation System Concept in Agricultural Research for Development: A learning module Jump to: navigation, search Tool Summary Name: Applying Innovation System Concept in Agricultural Research for Development: A learning module Agency/Company /Organization: International Livestock Research Institute Sector: Land Focus Area: Agriculture Topics: Policies/deployment programs Resource Type: Training materials Website: mahider.ilri.org/bitstream/10568/167/1/Innovation_System_Agric_LM.pdf Applying Innovation System Concept in Agricultural Research for Development: A learning module Screenshot References: Applying Innovation System Concept in Agricultural Research for Development: A learning module[1] Preface "Sustained agricultural growth requires, among others, increased

270

A New Model and Reconstruction Method for 2D PET Based on Transforming Detector Tube Data into Detector Arc Data  

Science Conference Proceedings (OSTI)

The popular Radon transform approximation used in the modeling and reconstruction of positron emission tomography (PET) images fails to account for the non-trivial size of PET detectors. Currently, all reconstruction algorithms which account for detector ... Keywords: PET, image reconstruction, mathematical model, positron emission tomography

R. B. Carroll; B. A. Mair

2001-03-01T23:59:59.000Z

271

Vehicle Technologies Office: Lightweight Materials Long-Term Applied  

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

Long-Term Applied Research: Magnesium and Carbon Fiber to someone by E-mail Long-Term Applied Research: Magnesium and Carbon Fiber to someone by E-mail Share Vehicle Technologies Office: Lightweight Materials Long-Term Applied Research: Magnesium and Carbon Fiber on Facebook Tweet about Vehicle Technologies Office: Lightweight Materials Long-Term Applied Research: Magnesium and Carbon Fiber on Twitter Bookmark Vehicle Technologies Office: Lightweight Materials Long-Term Applied Research: Magnesium and Carbon Fiber on Google Bookmark Vehicle Technologies Office: Lightweight Materials Long-Term Applied Research: Magnesium and Carbon Fiber on Delicious Rank Vehicle Technologies Office: Lightweight Materials Long-Term Applied Research: Magnesium and Carbon Fiber on Digg Find More places to share Vehicle Technologies Office: Lightweight

272

The reconstruction of the Lake Champlain sidewheel steamer Champlain II  

E-Print Network (OSTI)

The steamship Champlain II, ex-Oakes Ames, was built as a railroad car transfer ferry in 1868 at Marks Bay, Burlington, Vermont in the private shipyard of Napoleon B. Proctor. The vessel was later converted to a passenger line boat in 1873, but was in service only a few years before she was dramatically wrecked on the night of July 16, 1875. Champlain II holds an important place in the development of steamships on Lake Champlain. This thesis examines the historical and economic background of Champlain II, ex-Oakes Ames. Attention is paid to the original construction of Oakes Ames and includes a discussion of the railroad car ferry as a specific vessel type. The narrative includes a detailed corporate and financial history of the vessel's owners, the Rutland Railroad, the Delaware and Hudson Company and the Champlain Transportation Company, and chronicles the changes in Oakes Ames ownership and her subsequent refit as a passenger line boat. Particular attention is paid to the details of the wreck and the folklore that grew surrounding the event. The thesis also includes a narrative of the two-year archaeological study of the vessel, undertaken in the summers of 1993 and 1994, which involved full documentation of the dimensions of the hull timbers by divers. The findings of the archaeological recording are presented in detail and discussed as part of the overall architecture of the hull. The archaeological data and archival materials on 19th-century wooden' steamship construction were combined to create a reconstruction of the Champlain II, ex-Oakes,Ames. The reconstruction is graphically depicted in this thesis by lines, construction and propulsion plans of the vessel. The vessel is then compared to other archaeologically examined steamboat wrecks of Lake Champlain. Analysis of Champlain IIs hull construction and comparison between it and contemporary vessels has led to the conclusion that Champlain II, although built for nonpassenger, cross-lake traffic, had framing and longitudinal support systems that were quite typical for Lake Champlain passenger line steamers of the period.

Baldwin, Elizabeth Robinson

1997-01-01T23:59:59.000Z

273

Respiratory motion sampling in 4DCT reconstruction for radiotherapy  

SciTech Connect

Purpose: Phase-based and amplitude-based sorting techniques are commonly used in four-dimensional CT (4DCT) reconstruction. However, effect of these sorting techniques on 4D dose calculation has not been explored. In this study, the authors investigated a candidate 4DCT sorting technique by comparing its 4D dose calculation accuracy with that for phase-based and amplitude-based sorting techniques.Method: An optimization model was formed using organ motion probability density function (PDF) in the 4D dose convolution. The objective function for optimization was defined as the maximum difference between the expected 4D dose in organ of interest and the 4D dose calculated using a 4DCT sorted by a candidate sampling method. Sorting samples, as optimization variables, were selected on the respiratory motion PDF assessed during the CT scanning. Breathing curves obtained from patients' 4DCT scanning, as well as 3D dose distribution from treatment planning, were used in the study. Given the objective function, a residual error analysis was performed, and k-means clustering was found to be an effective sampling scheme to improve the 4D dose calculation accuracy and independent with the patient-specific dose distribution. Results: Patient data analysis demonstrated that the k-means sampling was superior to the conventional phase-based and amplitude-based sorting and comparable to the optimal sampling results. For phase-based sorting, the residual error in 4D dose calculations may not be further reduced to an acceptable accuracy after a certain number of phases, while for amplitude-based sorting, k-means sampling, and the optimal sampling, the residual error in 4D dose calculations decreased rapidly as the number of 4DCT phases increased to 6.Conclusion: An innovative phase sorting method (k-means method) is presented in this study. The method is dependent only on tumor motion PDF. It could provide a way to refine the phase sorting in 4DCT reconstruction and is effective for 4D dose accumulation. Optimized sorting techniques could achieve acceptable residuals (less than 0.5% of the prescription dose) using 6 sorting samples, which is much better than amplitude-based or phase-based sorting. Further increase in sorting phase number exceeding 6 or more may not be necessary when using the k-means sampling or optimal sampling points.

Chi Yuwei; Liang Jian; Qin Xu; Yan Di [Department of Radiation Oncology, Columbia University, New York, New York 10032 (United States); Department of Radiation Oncology, William Beaumont Hospital, Royal Oak, Michigan 48073 (United States)

2012-04-15T23:59:59.000Z

274

Nuclear k_T in d+Au Collisions from Multiparticle Jet Reconstruction at STAR  

E-Print Network (OSTI)

This paper presents the most recent nuclear k_T measurements from STAR derived from multiparticle jet reconstruction of d+Au and p+p collisions at sqrt(s)=200 GeV. Since jets reconstructed from multiple particles are relatively free of fragmentation biases, nuclear k_T can be measured with greater certainty in this way than with traditional di-hadron correlations. Multi-particle jet reconstruction can also be used for a direct measurement of the fragmentation function.

Thomas Henry

2005-11-01T23:59:59.000Z

275

Three-view stereoscopy in dusty plasmas under microgravity: A calibration and reconstruction approach  

Science Conference Proceedings (OSTI)

A three-camera stereoscopy setup is presented that allows to reconstruct the trajectories of particles in dusty plasmas under microgravity. The calibration procedure for the three-camera setup takes the special circumstances into account that occur in close-range imaging of small particles. Additionally, a reconstruction algorithm is presented that is based on the epipolar geometry and delivers the essential particle correspondences. Further improvements are achieved by analyzing the dynamic particle behavior. Two applications of our calibration and reconstruction procedure are presented: A two-dimensional dust structure in the laboratory with a large percentage of hidden particles, and particles inside the void of a dust cloud under microgravity.

Himpel, Michael; Buttenschoen, Birger; Melzer, Andre [Institut fuer Physik, Ernst-Moritz-Arndt-Universitaet Greifswald, 17489 Greifswald (Germany)

2011-05-15T23:59:59.000Z

276

How to Apply for an SES Position | Department of Energy  

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

How to Apply for an SES Position How to Apply for an SES Position How to Apply for an SES Position The Senior Executive Service (SES) is an elite group of men and women meeting the highest professional standards who administer public programs at the top levels of the Federal government. SES employees' salaries are linked directly to individual performance. The U.S. Office of Personnel Management's (OPM) SES web page contains a host of information that may be benefical to you. To apply for current SES positions within the Federal Government, including the Department of Energy please visit the Office of Personnel Management's USAJOBS site. From this site, you may view, download and apply for vacancies of interest to you. DOE does not accept unsolicited resumes. You must apply to a specific

277

Apply for Our Jobs | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Apply for Our Jobs | National Nuclear Security Administration Apply for Our Jobs | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog The National Nuclear Security Administration Apply for Our Jobs Home > Federal Employment > Apply for Our Jobs Apply for Our Jobs Whether you're a student seeking to learn more about a future career, just starting out, at mid-career or an experienced executive, NNSA may have the

278

Apply for Our Jobs | National Nuclear Security Administration  

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

Apply for Our Jobs | National Nuclear Security Administration Apply for Our Jobs | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog The National Nuclear Security Administration Apply for Our Jobs Home > Federal Employment > Apply for Our Jobs Apply for Our Jobs Whether you're a student seeking to learn more about a future career, just starting out, at mid-career or an experienced executive, NNSA may have the

279

Challenges in Applying Diamond Coatings to Carbide Twist Drills  

Science Conference Proceedings (OSTI)

Despite of the attractive advantage of applying diamond coating to drills, ... Investigation of a Hybrid Cutting Tool Design for Shearing Operations of Sheet Metals.

280

NREL: Technology Transfer - Apply Now for Energy-Efficient Housing ...  

Apply Now for Energy-Efficient Housing ... and NREL's Residential Buildings Research Web site to learn about systems integration and energy analysis ...

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

1 SCRA Applied Research & Development offers the following ...  

Science Conference Proceedings (OSTI)

... and the rapid transition of results into US ... the Way (PLTW); National Science Foundation initiatives ... 6 SCRA Applied R&D 5300 International Blvd N ...

2012-10-26T23:59:59.000Z

282

Applied Process Engineering Laborotory APEL | Open Energy Information  

Open Energy Info (EERE)

Engineering Laborotory APEL Jump to: navigation, search Name Applied Process Engineering Laborotory (APEL) Place United States Sector Services Product General Financial & Legal...

283

Applied Mathematics and Plasma Physics, T-5: Theoretical, T:...  

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

Pieter Swart Deputy Group Leader Kim Rasmussen Administration Charlotte Lehman Office Location TA-3, Bldg 508, Rm 204 Applied Mathematics and Plasma Physics, T-5 The group...

284

Mark Linne Dept. Applied Mechanics, Chalmers University, Gothenburg...  

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

Optical and X-ray Measurements for Fuel Sprays Mark Linne Dept. Applied Mechanics, Chalmers University, Gothenburg, 41296, Sweden This talk will describe measurement needs across...

285

An improved Benders decomposition applied to a multi-layer ...  

E-Print Network (OSTI)

GLOBECOM 2007, Washington DC, USA, December 2007. [8] A. M. Costa, A survey on benders decomposition applied to fixed-charge network design ...

286

Infrared Imagery Applied to A Large Buoyant Plume  

Science Conference Proceedings (OSTI)

The possibility of applying infrared imagery to the study of a large, hot plume materialized by carbon particles resulting from the incomplete combustion of fuel oil is investigated.

J-M. Brustet; B. Benech; P. Waldteufel

1981-05-01T23:59:59.000Z

287

Steel Research Applied to National Needs - A Company Perspective  

Science Conference Proceedings (OSTI)

Symposium, Materials Research Applied to National Needs (MARANN) in Honor of ... food packaging, transportation (auto, rail, and air), etc, to name just a few.

288

Geothermal: Sponsored by OSTI -- Extracting and Applying SV-SV...  

Office of Scientific and Technical Information (OSTI)

Extracting and Applying SV-SV Shear Modes from Vertical Vibrator Data Across Geothermal Prospects Final Report Geothermal Technologies Legacy Collection HelpFAQ | Site Map |...

289

Lagrangean Duality Applied on Vehicle Routing with Time Windows  

E-Print Network (OSTI)

Nov 6, 2001 ... Lagrangean Duality Applied on Vehicle Routing with Time Windows ... with the Vehicle Routing Problem with Time Windows (VRPTW).

290

Los Alamos Lab: International and Applied Technology Division...  

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

Applied Electromagnetics, IAT-2 IAT-2 is a broad spectrum electromagnetics applications organization whose research and development activities address the Global Security...

291

How to Apply for NIST, Department of Commerce, and Other ...  

Science Conference Proceedings (OSTI)

... Search for Job Vacancies: Vacancy announcements contain important information that applicants need to know to apply for a specific job opening ...

2013-08-09T23:59:59.000Z

292

Modular Systems Biology applied to TGFbeta and DNA Damage Response...  

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

Modular Systems Biology applied to TGFbeta and DNA Damage Response Signaling following Low Dose Radiation Francis Cucinotta NASA Johnson Space Center Abstract Modular systems...

293

Applications of Many-Core Technologies to On-line Event Reconstruction in High Energy Physics Experiments  

E-Print Network (OSTI)

Interest in many-core architectures applied to real time selections is growing in High Energy Physics (HEP) experiments. In this paper we describe performance measurements of many-core devices when applied to a typical HEP online task: the selection of events based on the trajectories of charged particles. We use as benchmark a scaled-up version of the algorithm used at CDF experiment at Tevatron for online track reconstruction - the SVT algorithm - as a realistic test-case for low-latency trigger systems using new computing architectures for LHC experiment. We examine the complexity/performance trade-off in porting existing serial algorithms to many-core devices. We measure performance of different architectures (Intel Xeon Phi and AMD GPUs, in addition to NVidia GPUs) and different software environments (OpenCL, in addition to NVidia CUDA). Measurements of both data processing and data transfer latency are shown, considering different I/O strategies to/from the many-core devices.

A. Gianelle; S. Amerio; D. Bastieri; M. Corvo; W. Ketchum; T. Liu; A. Lonardo; D. Lucchesi; S. Poprocki; R. Rivera; L. Tosoratto; P. Vicini; P. Wittich

2013-12-03T23:59:59.000Z

294

Apparatus And Method For Reconstructing Data Using Cross-Parity Stripes On Storage Media  

DOE Patents (OSTI)

An apparatus and method for reconstructing missing data using cross-parity stripes on a storage medium is provided. The apparatus and method may operate on data symbols having sizes greater than a data bit. The apparatus and method makes use of a plurality of parity stripes for reconstructing missing data stripes. The parity symbol values in the parity stripes are used as a basis for determining the value of the missing data symbol in a data stripe. A correction matrix is shifted along the data stripes, correcting missing data symbols as it is shifted. The correction is performed from the outside data stripes towards the inner data stripes to thereby use previously reconstructed data symbols to reconstruct other missing data symbols.

Hughes, James Prescott (Lino Lakes, MN)

2003-06-17T23:59:59.000Z

295

Edge-Preserving Image Reconstruction with Wavelet-Domain Edge Continuation  

Science Conference Proceedings (OSTI)

The standard approach to image reconstruction is to stabilize the problem by including an edge-preserving roughness penalty in addition to faithfulness to the data. However, this methodology produces noisy object boundaries and creates a staircase effect. ...

Marc C. Robini; Pierre-Jean Viverge; Yue-Min Zhu; Isabelle E. Magnin

2009-07-01T23:59:59.000Z

296

Degradation identification and model parameter estimation in discontinuity-adaptive visual reconstruction  

Science Conference Proceedings (OSTI)

This paper describes our recent experiences and progress towards an efficient solution of the highly ill-posed and computationally demanding problem of blind and unsupervised visual reconstruction. Our case study is image restoration, i.e. deblurring ...

Anna Tonazzini; Luigi Bedini

2001-10-01T23:59:59.000Z

297

Observation of Interference Patterns in Reconstructed Digital Holograms of Atmospheric Ice Crystals  

Science Conference Proceedings (OSTI)

The observation of interference patterns in reconstructed digital holograms of natural ice crystals is reported. It is suggested that an investigation of the interference fringes’ origin will yield a new application of holography in atmospheric ...

Sebastian M. F. Raupach

2009-12-01T23:59:59.000Z

298

Improving government : the impact of Indonesia's BRR beyond the tsunami reconstruction  

E-Print Network (OSTI)

Sustainable disaster recovery is increasingly understood as a comprehensive process that extends beyond physical reconstruction to include efforts to improve the affected communities' ability to adapt, respond and be more ...

Broid Krauze, Daniel

2012-01-01T23:59:59.000Z

299

Extended Reconstruction of Global Sea Surface Temperatures Based on COADS Data (1854–1997)  

Science Conference Proceedings (OSTI)

A monthly extended reconstruction of global SST (ERSST) is produced based on Comprehensive Ocean–Atmosphere Data Set (COADS) release 2 observations from the 1854–1997 period. Improvements come from the use of updated COADS observations with new ...

Thomas M. Smith; Richard W. Reynolds

2003-05-01T23:59:59.000Z

300

On the sensitivity of field reconstruction and prediction using Empirical Orthogonal Functions derived from gappy data  

Science Conference Proceedings (OSTI)

Empirical Orthogonal Function (EOF) Analysis is commonly used in the climate sciences and elsewhere to describe, reconstruct, and predict highly dimensional data fields. When data contain a high percentage of missing values (i.e. “gappy”), ...

Marc H. Taylor; Martin Losch; Manfred Wenzel; Jens Schröter

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

Chaotic Analog-to-Information Conversion: Principle and Reconstructability with Parameter Identifiability  

E-Print Network (OSTI)

This paper proposes a chaos-based analog-to-information conversion system for the acquisition and reconstruction of sparse analog signals. The sparse signal acts as an excitation term of a continuous-time chaotic system and the compressive measurements are performed by sampling chaotic system outputs. The reconstruction is realized through the estimation of the sparse coefficients with principle of chaotic parameter estimation. With the deterministic formulation, the analysis on the reconstructability is conducted via the sensitivity matrix from the parameter identifiability of chaotic systems. For the sparsity-regularized nonlinear least squares estimation, it is shown that the sparse signal is locally reconstructable if the columns of the sparsity-regularized sensitivity matrix are linearly independent. A Lorenz system excited by the sparse multitone signal is taken as an example to illustrate the principle and the performance.

Feng Xi; Sheng Yao Chen; Zhong Liu

2012-12-12T23:59:59.000Z

302

A Tree-Ring-Based Reconstruction of Delaware River Basin Streamflow Using Hierarchical Bayesian Regression  

Science Conference Proceedings (OSTI)

A hierarchical Bayesian regression model is presented for reconstructing the average summer streamflow at five gauges in the Delaware River basin using eight regional tree-ring chronologies. The model provides estimates of the posterior ...

Naresh Devineni; Upmanu Lall; Neil Pederson; Edward Cook

2013-06-01T23:59:59.000Z

303

On the Origin of the Standardization Sensitivity in RegEM Climate Field Reconstructions  

Science Conference Proceedings (OSTI)

The regularized expectation maximization (RegEM) method has been used in recent studies to derive climate field reconstructions of Northern Hemisphere temperatures during the last millennium. Original pseudoproxy experiments that tested RegEM [...

Jason E. Smerdon; Alexey Kaplan; Diana Chang

2008-12-01T23:59:59.000Z

304

Late-Eighteenth-Century Precipitation Reconstructions from James Madison's Montpelier Plantation  

Science Conference Proceedings (OSTI)

This study presents two independent reconstructions of precipitation from James Madison's Montpelier plantation at the end of the eighteenth century. The first is transcribed directly from meteorological diaries recorded by the Madison family for ...

Daniel L. Druckenbrod; Michael E. Mann; David W. Stahle; Malcolm K. Cleaveland; Matthew D. Therrell; Herman H. Shugart

2003-01-01T23:59:59.000Z

305

Detection of Human Influence on a New, Validated 1500-Year Temperature Reconstruction  

Science Conference Proceedings (OSTI)

Climate records over the last millennium place the twentieth-century warming in a longer historical context. Reconstructions of millennial temperatures show a wide range of variability, raising questions about the reliability of currently ...

Gabriele C. Hegerl; Thomas J. Crowley; Myles Allen; William T. Hyde; Henry N. Pollack; Jason Smerdon; Eduardo Zorita

2007-02-01T23:59:59.000Z

306

A New Approach in Metal Artifact Reduction for CT 3D Reconstruction  

Science Conference Proceedings (OSTI)

The 3D representation of CT scans is widely used in medical application such as virtual endoscopy, plastic reconstructive surgery, dental implant planning systems and more. Metallic objects present in CT studies cause strong artifacts like beam hardening ...

Valery Naranjo; Roberto Llorens; Patricia Paniagua; Mariano Alcañiz; Salvador Albalat

2009-06-01T23:59:59.000Z

307

Large-Eddy Simulation of the Stable Boundary Layer with Explicit Filtering and Reconstruction Turbulence Modeling  

Science Conference Proceedings (OSTI)

Large-eddy simulation (LES) of the stably stratified atmospheric boundary layer is performed using an explicit filtering and reconstruction approach with a finite difference method. Turbulent stresses are split into the resolvable subfilter-scale ...

Bowen Zhou; Fotini Katopodes Chow

2011-09-01T23:59:59.000Z

308

Greenland Ice Sheet Mass Balance Reconstruction. Part II: Surface Mass Balance (1840–2010)  

Science Conference Proceedings (OSTI)

Meteorological station records, ice cores, and regional climate model output are combined to develop a continuous 171-yr (1840–2010) reconstruction of Greenland ice sheet climatic surface mass balance (Bclim) and its subcomponents including near-...

Jason E. Box

2013-09-01T23:59:59.000Z

309

Digitisation and 3D Reconstruction of 30 Year Old Microscopic Sections of Human Embryo, Foetus  

E-Print Network (OSTI)

of our approach, we show a multi-planar reconstruction and a 3-D direct volume rendering, or thin partitions, found within the orbital fat. De Haan studied the development of the bones

310

Robust and efficient photo-consistency estimation for volumetric 3d reconstruction  

Science Conference Proceedings (OSTI)

Estimating photo-consistency is one of the most important ingredients for any 3D stereo reconstruction technique that is based on a volumetric scene representation. This paper presents a new, illumination invariant photo-consistency measure for high ...

Alexander Hornung; Leif Kobbelt

2006-05-01T23:59:59.000Z

311

Sei Vojany Station repowering reconstruction assessment feasibility study. Volume 3. Export trade information  

Science Conference Proceedings (OSTI)

The feasibility study conducted for Slovensky Energeticky Podnik(Slovak Energy Production Company) (SEP) evaluates reconstruction, repowering, and expansion of SEP's Vojany Station(EVO). The study recommends a training program for government and plant officials.

Not Available

1992-01-01T23:59:59.000Z

312

Testing the Fidelity of Methods Used in Proxy-Based Reconstructions of Past Climate  

Science Conference Proceedings (OSTI)

Two widely used statistical approaches to reconstructing past climate histories from climate “proxy” data such as tree rings, corals, and ice cores are investigated using synthetic “pseudoproxy” data derived from a simulation of forced climate ...

Michael E. Mann; Scott Rutherford; Eugene Wahl; Caspar Ammann

2005-10-01T23:59:59.000Z

313

Prefiltered B-Spline Reconstruction for Hardware-Accelerated Rendering of Optimally Sampled Volumetric Data  

E-Print Network (OSTI)

In this paper odd-order B-spline filters are proposed to reconstruct volumetric data sampled on an optimal Body-Centered Cubic (BCC) grid. To make these filters nearly interpolating, we adapt a previously published framework, which is based on a discrete frequency-domain prefiltering. It is shown that a BCC-sampled B-spline kernel is not invertible, therefore the interpolation constraint cannot be satisfied by a discrete prefiltering. To remedy this problem, we use a slightly modified discrete Bspline for prefiltering, which is proven to be invertible. Although this modification leads to an approximation, the proposed prefiltered B-spline reconstruction of BCC-sampled data still provides much higher image quality than the interpolating prefiltered B-spline reconstruction of volume data sampled on an equivalent Cartesian Cubic (CC) grid. Furthermore, our method directly supports an efficient implementation on a conventional graphics hardware, unlike the previous reconstruction methods developed for the BCC grid.

Balázs Csébfalvi; Markus Hadwiger

2006-01-01T23:59:59.000Z

314

Reconstruction of Historical Climate in China: High-Resolution Precipitation Data from Qing Dynasty Archives  

Science Conference Proceedings (OSTI)

Chinese historical documents that contain descriptions of weather conditions can be used for studying climate of the past hundreds or even thousands of years. In this study, the progress of reconstructing a 273-station quantitative precipitation ...

Q-S. Ge; J-Y. Zheng; Z-X. Hao; P-Y. Zhang; W-C. Wang

2005-05-01T23:59:59.000Z

315

Reconstructing Streamflow Time Series in Central Arizona Using Monthly Precipitation and Tree Ring Records  

Science Conference Proceedings (OSTI)

An adaptive, three-way interpolation model based on multiple discriminant analysis, multiple linear regression, and normal ratio methods was used to reconstruct streamflows for three gauges in central Arizona for the period from 1580, using ...

Kenneth C. Young

1994-03-01T23:59:59.000Z

316

On the digital reconstruction and interactive presentation of heritage sites through time  

Science Conference Proceedings (OSTI)

Virtual time travel from existing remains of a heritage site to its previous states and original condition is an educational and interesting experience and can provide better understanding of history. However, digitally reconstructing non-existing objects ...

Sabry F. El-Hakim; George MacDonald; Jean-François Lapointe; Lorenzo Gonzo; Michael Jemtrud

2006-10-01T23:59:59.000Z

317

Real-Time Signal Reconstruction from Short-Time Fourier Transform Magnitude Spectra using FPGAs  

E-Print Network (OSTI)

, Beauregard, Zhu et al. proposed iterative methods which gave good results measured by the signal(mL, )| - |X (mL, )|]2 d (3) where X (n) is the estimated or reconstructed signal. Nawab, Griffin and Zhu-Beauregard

Paris-Sud XI, Université de

318

Observation of B?s - B??s oscillations using partially reconstructed hadronic Bs decays  

E-Print Network (OSTI)

This thesis describes the contribution of partially reconstructed hadronic decays in the world's first observation of B?s - B??s oscillations. The analysis is a core member of a suite of closely related studies whose ...

Miles, Jeffrey Robert

2008-01-01T23:59:59.000Z

319

Reconstructing the NH Mean Temperature: Can Underestimation of Trends and Variability Be Avoided?  

Science Conference Proceedings (OSTI)

There are indications that hemispheric-mean climate reconstructions seriously underestimate the amplitude of low-frequency variability and trends. Some of the theory of linear regression and error-in-variables models is reviewed to identify the ...

Bo Christiansen

2011-02-01T23:59:59.000Z

320

An Upwind-Biased Transport Scheme Using a Quadratic Reconstruction on Spherical Icosahedral Grids  

Science Conference Proceedings (OSTI)

Several transport schemes developed for spherical icosahedral grids are based on the piecewise linear approximation. The simplest one among them uses an algorithm where the tracer distribution in the upwind side of a cell face is reconstructed ...

Hiroaki Miura; William C. Skamarock

2013-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

Interfacial Reconstruction and Superconductivity in YBa2Cu3O7-x ...  

Science Conference Proceedings (OSTI)

Presentation Title, Interfacial Reconstruction and Superconductivity in YBa2Cu3O7-x and Pr0.68Ca0.32MnO3 Superlattices. Author(s), Jonas Norpoth, Dong Su, ...

322

Frost-Free Record Reconstruction for Eastern Massachusetts, 1733–1980  

Science Conference Proceedings (OSTI)

A reconstruction methodology utilizing such varied documents as diaries, agricultural journals, U.S. Weather Bureau killing frost records and instrumental records is discussed. A resultant 248-year frost record for eastern Massachusetts exhibits ...

William R. Baron; Geoffrey A. Gordon; Harold W. Borns Jr.; David C. Smith

1984-02-01T23:59:59.000Z

323

Greenland ice sheet mass balance reconstruction. Part II: surface mass balance (1840-2010)  

Science Conference Proceedings (OSTI)

Meteorological station records, ice cores, and regional climate model output are combined to develop a continuous 171-year (1840-2010) reconstruction of Greenland ice sheet climatic surface mass balance (Bclim) and its sub-components including ...

Jason E. Box

324

Reconstruction and selection of Z ?????+?? jet +?’ s decays at the CMS experiment  

Science Conference Proceedings (OSTI)

At the LHC tau leptons are expected in final states of many important physics processes including Supersymmetry and the production of Higgs boson(s) and other exotic particles. An efficient and accurate ? reconstruction and identification are therefore an important part of the CMS physics programme. Z 0 ?? + ? ? decays are often considered the “standard candle” of tau reconstruction as they validate tau lepton identification and provide a test bench for Higgs searches (for which they constitute the main irreducible background).

Letizia Lusito; The CMS Collaboration

2010-01-01T23:59:59.000Z

325

Optimization of 2D image reconstruction for positron emission mammography using IDL  

Science Conference Proceedings (OSTI)

The Clear-PEM system is a prototype machine for Positron Emission Mammography (PEM) under development within the Portuguese PET-Mammography consortium. We have embedded 2D image reconstruction algorithms implemented in IDL within the prototype's image ... Keywords: ART, Computer implementation, Emission tomography, FDG, FOM, FOV, FWHM, GEANT, IDL, Image reconstruction, Iterative algorithms, LOR, MLEM, NCAT, NME, OSEM, PEM, PET, PSF, Positron emission mammography, ROI

N. Oliveira; N. Matela; R. Bugalho; N. Ferreira; P. Almeida

2009-02-01T23:59:59.000Z

326

Time-Series Analysis of Reconstructed DAMA Data  

E-Print Network (OSTI)

An analysis of DAMA data (as reconstructed from DAMA publications) confirms the presence of an annual oscillation, but with a lower significance level than that claimed by DAMA. The phase of their signal is 0.39 +/- 0.02, corresponding to a peak value at about May 22, which is consistent with both the DAMA estimate and the expected phase of a dark-matter signal. However, a spectrogram analysis also shows evidence for oscillations in the frequency band 11 - 13 year-1, that are similar to oscillations found in spectrograms formed from measurements of the decay rates of 36Cl and 32Si acquired at the Brookhaven National Laboratory (BNL). One component of these oscillations (at 11.44 year-1) is prominent in DAMA/NaI data, at the 0.2% significance level (99.8% confidence level). Analyses of BNL and other nuclear decay (specifically beta decay and K-capture) measurements point to a solar influence, either by neutrinos or by some currently unknown form of radiation. The phase of the annual oscillation in DAMA data is compatible with an influence of dark matter, and is unlikely to be attributable to a purely solar influence. We also find that annual oscillations in both 133Ba decay measurements and the Troitsk tritium-decay measurements are compatible with a cosmic influence but not with a purely solar influence. These considerations raise the possibility that DAMA measurements may somehow be influenced by a combination of solar neutrinos, cosmic neutrinos, and dark matter

Peter A. Sturrock; Ephraim Fischbach; Jere H. Jenkins; Rafael Lang; Jonathan Nistor

2012-10-28T23:59:59.000Z

327

CMS reconstruction improvement for the muon tracking by the RPC chambers  

E-Print Network (OSTI)

The contribution of Resistive Plate Chamber (RPC) to muon reconstruction in CMS has been studied on a sample of muons collected in proton-proton collisions at sqrt(s) = 7 TeV at the LHC in 2011. Muon reconstruction is performed using the all-silicon inner tracker and with up to four stations of gas-ionization muon detectors. Drift Tubes and Cathode Strip Chambers detect muons in the barrel and endcap regions, respectively, and are complemented by the RPC system. Measured distributions of reconstructed hits in the RPCs crossed by muons from Z decays with a transverse momentum pT above 20 GeV/c are well reproduced by the Monte Carlo simulation. From the samples of J/psi and Z events, the efficiencies for muons with and without the inclusion of the RPC hits in the muon track reconstruction are measured and compared with the simulation. Using RPC information in track reconstruction improves up to about 3% of offline reconstruction efficiency for the muons in the region of pT above 7 GeV/c, in good agreement with simulation.

Min Suk Kim on behalf of the CMS Collaboration

2012-09-12T23:59:59.000Z

328

urbino worldwide campus applied computer scienceComputer Architecture  

E-Print Network (OSTI)

urbino worldwide campus applied computer scienceComputer Architecture alessandro bogliolo isti information science and technology institute 1/16 05.03 Pipeline hazards 05 CPU 05.03 Pipeline hazards;urbino worldwide campus applied computer scienceComputer Architecture alessandro bogliolo isti

Bogliolo, Alessandro

329

Applying to EPA for Approval of Other Uses of Phosphogypsum  

E-Print Network (OSTI)

Applying to EPA for Approval of Other Uses of Phosphogypsum: Preparing and Submitting a Complete. EP-D-04-007, Work Assignment 0-2 December 2005 #12;ii Applying for Other Uses of Phosphogypsum phosphogypsum in stacks? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.4. What

330

Applied Mathematics | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Applied Applied Mathematics Advanced Scientific Computing Research (ASCR) ASCR Home About Research Applied Mathematics Applied Mathematics Conferences And Workshops Computer Science Next Generation Networking Scientific Discovery through Advanced Computing (SciDAC) Computational Science Graduate Fellowship (CSGF) ASCR SBIR-STTR Facilities Science Highlights Benefits of ASCR Funding Opportunities Advanced Scientific Computing Advisory Committee (ASCAC) News & Resources Contact Information Advanced Scientific Computing Research U.S. Department of Energy SC-21/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-7486 F: (301) 903-4846 E: sc.ascr@science.doe.gov More Information » Research Applied Mathematics Print Text Size: A A A RSS Feeds FeedbackShare Page

331

Remediation of Mercury and Industrial Contaminants Applied Field Research  

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

Remediation of Mercury and Industrial Contaminants Applied Field Remediation of Mercury and Industrial Contaminants Applied Field Research Initiative (RoMIC-AFRI) Remediation of Mercury and Industrial Contaminants Applied Field Research Initiative (RoMIC-AFRI) Remediation of Mercury and Industrial Contaminants Applied Field Research Initiative (RoMIC-AFRI) Located on the Oak Ridge Reservation (ORR) in Oak Ridge, Tennessee, the RoMIC-AFRI was established to protect water resources by addressing the challenge of preventing contamination. The initiative at Oak Ridge is a collaborative effort that leverages DOE investments in basic science and applied research and the work of site contractors to address the complex challenges in the remediation of legacy waste at the Oak Ridge Reservation. The mission of the Remediation of Mercury and Industrial Contaminants

332

Applied Materials Switzerland SA Formerly HCT Shaping Systems SA | Open  

Open Energy Info (EERE)

Switzerland SA Formerly HCT Shaping Systems SA Switzerland SA Formerly HCT Shaping Systems SA Jump to: navigation, search Name Applied Materials Switzerland SA (Formerly HCT Shaping Systems SA) Place Chezeaux, Switzerland Zip 1033 Product Manufacturer of wire saws for the semiconductor and photovoltaic wafer slicing industries. References Applied Materials Switzerland SA (Formerly HCT Shaping Systems SA)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Applied Materials Switzerland SA (Formerly HCT Shaping Systems SA) is a company located in Chezeaux, Switzerland . References ↑ "[ Applied Materials Switzerland SA (Formerly HCT Shaping Systems SA)]" Retrieved from "http://en.openei.org/w/index.php?title=Applied_Materials_Switzerland_SA_Formerly_HCT_Shaping_Systems_SA&oldid=342245"

333

How to Apply for Senior Executive positions | Department of Energy  

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

How to Apply for Senior Executive positions How to Apply for Senior Executive positions How to Apply for Senior Executive positions To apply vacancies for SENIOR EXECUTIVE SERVICE (SES) , SENIOR LEVEL (SL), SCIENTIFIC AND PROFESSIONAL (ST) positions within the Department of Energy please visit OPM's website: http://www.usajobs.gov. From this site, you may download announcements for vacancies of interest to you. SENIOR EXECUTIVE SERVICE (SES) The Guide to Senior Executive Service Qualifications provides detailed information about executive qualifications and tips for writing effective qualification statements. What Are Executive Core Qualifications (ECQs) The Executive Core Qualifications (ECQs) define the competencies needed to build a federal corporate culture that drives for results, serves customers, and builds successful teams and coalitions within and outside

334

Energy Efficiency in Buildings in Switzerland - Applied Research...  

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

Energy Efficiency in Buildings in Switzerland - Applied Research on Vacuum Insulation, Passive Houses etc. Speaker(s): Armin Binz Date: January 21, 2003 - 12:00pm Location: Bldg....

335

Electrical capacitance volume tomography (ECVT) applied to bubbling fluid beds  

SciTech Connect

These presentation visuals illustrate the apparatus and method for applying Electrical Capacitance Volume Tomography (ECVT) to bubbling fluid beds to their solid fraction and bubble properties. Results are compared to estimated values.

Weber, J., Mei, J.

2012-01-01T23:59:59.000Z

336

A Stereo Photogrammetric Technique Applied to Orographic Convection  

Science Conference Proceedings (OSTI)

This paper describes a technique for photogrammetric analysis of stereo pairs of images that is applied to the study of orographic convection. The technique is designed for use with digital images and assumes detailed knowledge of the camera ...

Joseph A. Zehnder; Jiuxiang Hu; Anshuman Razdan

2007-06-01T23:59:59.000Z

337

Proceedings of the 2008 ACM symposium on Applied computing  

Science Conference Proceedings (OSTI)

Welcome to the 23rd Annual ACM Symposium on Applied Computing (SAC 2008). This international event is dedicated to computer scientists, engineers, and practitioners seeking innovative ideas in various areas of computer applications. This year, the conference ...

Roger L. Wainwright; Hisham M. Haddad

2008-03-01T23:59:59.000Z

338

DOE Solar Decathlon: How to Apply for the Solar Decathlon  

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

Photos Videos Education Sponsors Volunteers History FAQs Contacts How To Apply for the Solar Decathlon Is your school interested in participating in the next U.S. Department of...

339

NEW MOTOR DESIGN CONCEPT FOR ENERGY SAVING APPLIED TO  

E-Print Network (OSTI)

SHARK, NEW MOTOR DESIGN CONCEPT FOR ENERGY SAVING APPLIED TO SWITCHED RELUCTANCE MOTOR by Ana of the cylindrical and Shark air gap Switched Reluctance Motors and their assistance during the experimental work with other motor technologies such

340

Los Alamos Lab: International and Applied Technology Division...  

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

International Research and Analysis, IAT-1 IAT-1 has one of the most diverse work forces in the division. By applying its scientific and engineering skills to designated problems,...

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

Proceedings of the 2009 ACM symposium on Applied Computing  

Science Conference Proceedings (OSTI)

On behalf of the Organizing Committee, we welcome you to the 24th Annual ACM Symposium on Applied Computing (SAC 2009) hosted by Chaminade University in Hawaii. This international forum has been dedicated to computer scientists, engineers and practitioners ...

Sung Y. Shin; Sascha Ossowski

2009-03-01T23:59:59.000Z

342

18.337J / 6.338J Applied Parallel Computing (SMA 5505), Spring 2005  

E-Print Network (OSTI)

Applied Parallel Computing is an advanced interdisciplinary introduction to applied parallel computing on modern supercomputers.

Edelman, Alan

343

Detective quantum efficiency of CT reconstruction: the detection of small objects  

SciTech Connect

The loss of detection sensitivity incurred by any stage of image processing may normally be characterized by the frequency dependence of the detective quantum efficiency (DQE) of that stage of processing, provided the image is represented in continuous coordinates. However, limitations to the DQE concept arise when discretely sampled projection data are used to obtain discretely sampled computed tomographic (CT) reconstructions. The source of these limitations is the aliasing produced by the discrete sampling which mixes contributions from various frequencies. An associated problem is that the signal-to-noise ratio (SNR) for the detection of an object can depend upon the position of the object relative to the discrete reconstruction pixels. The effective SNR for discrete images must take into account this variation. While there may be no loss in the detection SNR for reconstructions in continuous coordinates (DQE = 100%), a reduction in the SNR will result from aliasing for discrete reconstructions. A simple one-dimensional model elucidates the characteristics of discrete CT reconstruction.

Hanson, K.M.

1979-01-01T23:59:59.000Z

344

1000 years of the olympic games: treasures of ancient Greece. digital reconstruction at the home of the gods  

Science Conference Proceedings (OSTI)

Keywords: 3D, Zeus, anaglyph, ancient Olympia, digital, digital cultural heritage, heritage, laser scan, panoramic photography, polarised, three dimensions, virtual reconstruction, web, zoomable

Sarah Kenderdine

2001-04-01T23:59:59.000Z

345

Tomographic reconstruction of high energy density plasmas with picosecond temporal resolution  

SciTech Connect

Three-dimensional reconstruction of the electron density in a plasma can be obtained by passing multiple beams at different field angles simultaneously through a plasma and performing a tomographic reconstruction of the measured field-dependent phase profiles. In this letter, a relatively simple experimental setup is proposed and simulations are carried out to verify the technique. The plasma distribution is modeled as a discreet number of phase screens and a Zernike polynomial representation of the phase screens is used to reconstruct the plasma profile. Using a subpicosecond laser, the complete three-dimensional electron density of the plasma can be obtained with a time resolution limited only by the transit time of the probe through the plasma.

Baker, K L

2005-09-20T23:59:59.000Z

346

Tomographic reconstruction for Wide Field Adaptive Optics systems: Fourier domain analysis and fundamental limitations  

E-Print Network (OSTI)

Several Wide Field of view Adaptive Optics (WFAO) concepts like Multi-Conjugate AO (MCAO), Multi-Object AO (MOAO) or Ground-Layer AO (GLAO) are currently studied for the next generation of Extremely Large Telescopes (ELTs). All these concepts will use atmospheric tomography to reconstruct the turbulent phase volume. In this paper, we explore different reconstruction algorithms and their fundamental limitations. We conduct this analysis in the Fourier domain. This approach allows us to derive simple analytical formulations for the different configurations, and brings a comprehensive view of WFAO limitations. We then investigate model and statistical errors and their impact on the phase reconstruction. Finally, we show some examples of different WFAO systems and their expected performance on a 42m telescope case.

B. Neichel; T. Fusco; J. -M. Conan

2008-11-14T23:59:59.000Z

347

Method and apparatus for reconstructing in-cylinder pressure and correcting for signal decay  

Science Conference Proceedings (OSTI)

A method comprises steps for reconstructing in-cylinder pressure data from a vibration signal collected from a vibration sensor mounted on an engine component where it can generate a signal with a high signal-to-noise ratio, and correcting the vibration signal for errors introduced by vibration signal charge decay and sensor sensitivity. The correction factors are determined as a function of estimated motoring pressure and the measured vibration signal itself with each of these being associated with the same engine cycle. Accordingly, the method corrects for charge decay and changes in sensor sensitivity responsive to different engine conditions to allow greater accuracy in the reconstructed in-cylinder pressure data. An apparatus is also disclosed for practicing the disclosed method, comprising a vibration sensor, a data acquisition unit for receiving the vibration signal, a computer processing unit for processing the acquired signal and a controller for controlling the engine operation based on the reconstructed in-cylinder pressure.

Huang, Jian

2013-03-12T23:59:59.000Z

348

Test of 3D CT reconstructions by EM + TV algorithm from undersampled data  

SciTech Connect

Computerized tomography (CT) plays an important role in medical imaging for diagnosis and therapy. However, CT imaging is connected with ionization radiation exposure of patients. Therefore, the dose reduction is an essential issue in CT. In 2011, the Expectation Maximization and Total Variation Based Model for CT Reconstruction (EM+TV) was proposed. This method can reconstruct a better image using less CT projections in comparison with the usual filtered back projection (FBP) technique. Thus, it could significantly reduce the overall dose of radiation in CT. This work reports the results of an independent numerical simulation for cone beam CT geometry with alternative virtual phantoms. As in the original report, the 3D CT images of 128 Multiplication-Sign 128 Multiplication-Sign 128 virtual phantoms were reconstructed. It was not possible to implement phantoms with lager dimensions because of the slowness of code execution even by the CORE i7 CPU.

Evseev, Ivan; Ahmann, Francielle; Silva, Hamilton P. da [Universidade Tecnologica Federal do Parana - UTFPR/FB, 85601-970, Caixa Postal 135, Francisco Beltrao - PR (Brazil); Schelin, Hugo R. [Universidade Tecnologica Federal do Parana-UTFPR/FB,85601-970,Caixa Postal 135,Francisco Beltrao-PR (Brazil) and Faculdades Pequeno Principe-FPP, Av. Iguacu, 333, Rebou (Brazil); Yevseyeva, Olga [Universidade Federal de Santa Catarina - UFSC/ARA, 88900-000, Rua Pedro Joao Pereira, 150, Ararangua - SC (Brazil); Klock, Margio C. L. [Universidade Federal do Parana - UFPR Litoral, 80230-901, Rua Jaguaraiva 512, Caioba, Matinhos - PR (Brazil)

2013-05-06T23:59:59.000Z

349

Learning and Applying Health Disparity Education through Texas TEKS Curriculum  

E-Print Network (OSTI)

As the US population grows in diversity, so has the number of health disparities. Health disparities continue to affect a large portion of the minority population resulting in negative health outcomes. Education remains a key element in the prevention of these adverse health conditions, especially among the ethnically diverse youth. Health education presently fails to be effectively implemented in the activities and instruction in classrooms, which is greatly impacted by the lack of knowledge and training of educators. Through the development and implementation of a new Texas health-science curriculum, educators can acquire the skills and framework necessary to approach a diverse classroom on good health practices. This program will identify the concepts of cultural competency and cultural influences to allow instructors the capacity to adapt a curriculum that suits all students. The analysis and reconstruction of current TEKS curricula is the purpose of this research study. Through studying these sets of data, an increased understanding in health education can be formulated and relayed to grade school level students. Thus, by the increase in health education students of minority can develop good behavioral norms; reducing the risks associated with rising health disparities.

Mazac, Taylor T

2010-05-01T23:59:59.000Z

350

Elementary Reconstruction of the Hockey Stick Curve: Discussion of Paper by Li, Nychka and Ammann  

E-Print Network (OSTI)

The paper by Li, Nychka and Ammann (2010) has exemplified the power of Bayesian Hierarchical Models to solve fundamental problems in paleoclimatology. However, much can also be learned by more elementary statistical methods. In this discussion, we use principal components analysis, regression, and time series analysis, to reconstruct the temperature signal since 1400 based on tree rings data. Although the “hockey stick ” shape is less clear cut than in the original analysis of Mann, Bradley and Hughes (1998, 1999), there is still substantial evidence that recent decades are among the warmest of the past 600 years. The problem of paleoclimate reconstruction is a natural one for the use of Bayesian hierarchical models (BHMs). As in most BHMs, there is an unobserved “process ” which is the true object of interest — in this case, the true series of temperatures. There are also various sources of “data” which are dependent on the “process ” with different levels of accuracy — observational data, tree rings, boreholes, ice cores etc. The problem of paleoclimate reconstruction may be characterized as how to combine the different data series to obtain the best reconstruction of the unobserved process, with suitable measures of uncertainty. The BHM technique is especially valuable for answering non-standard uncertainty questions, for instance, “what is the probability that the 1990s were the warmest decade of the [1000–2000] millennium?” In an earlier paper, Li, Nychka and Ammann (henceforth LNA, 2007) used an ensemble reconstruction, obtained via a combination of linear regression, bootstrapping and cross-validation, to reconstruct Northern Hemisphere average temperatures back to 1000, using 14 proxy series first discussed in Mann, Bradley and Hughes (MBH, 1999). Their results showed that there is indeed

Richard L. Smith

2010-01-01T23:59:59.000Z

351

How to Apply the ENERGY STAR Certified Building Decal  

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

How to Apply the ENERGY STAR How to Apply the ENERGY STAR Certified Building Decal Page Cyan-and-White Decal Instructions Application Instructions 2 How to Make a Glass Plaque 4 Cyan-and-White Paper Templates 5 "Etched-Look" Decal Instructions Application Instructions 7 How to Make a Glass Plaque 9 "Etched-Look" Paper Templates 10 How to Apply the ENERGY STAR Cyan and White Certified Building Decal What's in this package: Two sets of: ENERGY STAR logo decal 1. "Certified Building" lettering decal, with thick white paper on 2. one side and thin, semi-translucent paper on the other side. Paper templates of logo and lettering What you'll need: Level 1. Masking tape 2. Rubbing alcohol and a clean, soft cloth 3. Drivers license, credit card, or other rigid

352

How to Apply for Weatherization Assistance | Department of Energy  

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

How to Apply for Weatherization Assistance How to Apply for Weatherization Assistance How to Apply for Weatherization Assistance March 24, 2009 - 12:45pm Addthis Elizabeth Spencer Communicator, National Renewable Energy Laboratory A few weeks ago, the U.S. Department of Energy announced that it was investing $8 billion into weatherization and state energy grants-$5 billion of which is going directly to the Weatherization Assistance Program. And why is that interesting? Well, the Weatherization Assistance Program provides low-income families with free-of-charge, energy efficient upgrades to their homes. A more efficient home means that you pay less every month on your energy bills-and while that's the kind of upgrade anyone can benefit from, this program helps those who need those extra dollars the

353

Modular Applied General Equilibrium Tool (MAGNET) | Open Energy Information  

Open Energy Info (EERE)

Modular Applied General Equilibrium Tool (MAGNET) Modular Applied General Equilibrium Tool (MAGNET) Jump to: navigation, search Tool Summary Name: Modular Applied General Equilibrium Tool (MAGNET) Agency/Company /Organization: LEI Wageningen UR, the Netherlands Complexity/Ease of Use: Moderate Related Tools Ex Ante Appraisal Carbon-Balance Tool (EX-ACT) Climate Rapid Overview and Decision Support (C-ROADS) Simulator Partnership for Economic Policy Modeling and Policy Impact Analysis (MPIA) ... further results Find Another Tool FIND DEVELOPMENT IMPACTS ASSESSMENT TOOLS A modular global computable general equilibrium model that covers the whole economy and has been used extensively in agricultural, environmental, and trade policy analysis; builds on the GTAP model, and is the successor of LEITAP. Approach MAGNET is based on the Global Trade Analysis Project (GTAP) model and

354

Overview Of Electromagnetic Methods Applied In Active Volcanic Areas Of  

Open Energy Info (EERE)

Of Electromagnetic Methods Applied In Active Volcanic Areas Of Of Electromagnetic Methods Applied In Active Volcanic Areas Of Western United States Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Overview Of Electromagnetic Methods Applied In Active Volcanic Areas Of Western United States Details Activities (7) Areas (2) Regions (0) Abstract: A better understanding of active volcanic areas in the United States through electromagnetic geophysical studies received foundation from the many surveys done for geothermal exploration in the 1970's. Investigations by governmental, industrial, and academic agencies include (but are not limited to) mapping of the Cascades. Long Valley/Mono area, the Jemez volcanic field, Yellowstone Park, and an area in Colorado. For one example - Mt. Konocti in the Mayacamas Mountains, California - gravity,

355

Remote Gas Well Monitoring Technology Applied to Marcellus Shale Site |  

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

Remote Gas Well Monitoring Technology Applied to Marcellus Shale Remote Gas Well Monitoring Technology Applied to Marcellus Shale Site Remote Gas Well Monitoring Technology Applied to Marcellus Shale Site February 10, 2012 - 12:00pm Addthis Washington, DC - A technology to remotely monitor conditions at energy-rich Marcellus Shale gas wells to help insure compliance with environmental requirements has been developed through a research partnership funded by the U.S. Department of Energy (DOE). NETL-RUA researcher Dr. Michael McCawley hasdeveloped a technology to remotely monitor theenvironment around energy-rich Marcellus Shale gas wells. Photo courtesy of West Virginia University.The technology - which involves three wireless monitoring modules to measure volatile organic compounds, dust, light and sound - is currently being tested at a Marcellus

356

Geobotanical Remote Sensing Applied To Targeting New Geothermal Resource  

Open Energy Info (EERE)

Geobotanical Remote Sensing Applied To Targeting New Geothermal Resource Geobotanical Remote Sensing Applied To Targeting New Geothermal Resource Locations In The Us Basin And Range With A Focus On Dixie Meadows, Nv Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Geobotanical Remote Sensing Applied To Targeting New Geothermal Resource Locations In The Us Basin And Range With A Focus On Dixie Meadows, Nv Details Activities (1) Areas (1) Regions (0) Abstract: This paper presents an overview of the work our collaboration is doing to increase the detailed mapped resource base for geothermal exploration in the Western US. We are imaging several large areas in the western US with high resolution airborne hyperspectral and satellite multispectral sensors. We have now entered the phase where the remote sensing techniques and tools we are developing are mature enough to be

357

Magnetic Resonance-Based Treatment Planning for Prostate Intensity-Modulated Radiotherapy: Creation of Digitally Reconstructed Radiographs  

SciTech Connect

Purpose: To develop a technique to create magnetic resonance (MR)-based digitally reconstructed radiographs (DRR) for initial patient setup for routine clinical applications of MR-based treatment planning for prostate intensity-modulated radiotherapy. Methods and Materials: Twenty prostate cancer patients' computed tomography (CT) and MR images were used for the study. Computed tomography and MR images were fused. The pelvic bony structures, including femoral heads, pubic rami, ischium, and ischial tuberosity, that are relevant for routine clinical patient setup were manually contoured on axial MR images. The contoured bony structures were then assigned a bulk density of 2.0 g/cm{sup 3}. The MR-based DRRs were generated. The accuracy of the MR-based DDRs was quantitatively evaluated by comparing MR-based DRRs with CT-based DRRs for these patients. For each patient, eight measuring points on both coronal and sagittal DRRs were used for quantitative evaluation. Results: The maximum difference in the mean values of these measurement points was 1.3 {+-} 1.6 mm, and the maximum difference in absolute positions was within 3 mm for the 20 patients investigated. Conclusions: Magnetic resonance-based DRRs are comparable to CT-based DRRs for prostate intensity-modulated radiotherapy and can be used for patient treatment setup when MR-based treatment planning is applied clinically.

Chen, Lili [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA (United States)]. E-mail: lili.chen@fccc.edu; Nguyen, Thai-Binh [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA (United States); Jones, Elan [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA (United States); Chen Zuoqun [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA (United States); Luo Wei [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA (United States); Wang Lu [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA (United States); Price, Robert A. [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA (United States); Pollack, Alan [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA (United States); Ma, C.-M. Charlie [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA (United States)

2007-07-01T23:59:59.000Z

358

Guidance for Federal Departments and Agencies on Establishing, Applying,  

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

Guidance for Federal Departments and Agencies on Establishing, Guidance for Federal Departments and Agencies on Establishing, Applying, and Revising Categorical Exclusions Under the National Environmental Policy Act Guidance for Federal Departments and Agencies on Establishing, Applying, and Revising Categorical Exclusions Under the National Environmental Policy Act This guidance from the Council on Environmental Quality provides methods for substantiating categorical exclusions, clarifies the process for establishing categorical exclusions, outlines how agencies should engage the public when establishing and using categorical exclusions, describes how agencies can document the use of categorical exclusions, and recommends periodic agency review of existing categorical exclusions. Final Guidance for Federal Departments and Agencies on Establishing,

359

Guidance for Federal Departments and Agencies on Establishing, Applying,  

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

for Federal Departments and Agencies on Establishing, for Federal Departments and Agencies on Establishing, Applying, and Revising Categorical Exclusions Under the National Environmental Policy Act Guidance for Federal Departments and Agencies on Establishing, Applying, and Revising Categorical Exclusions Under the National Environmental Policy Act This guidance from the Council on Environmental Quality provides methods for substantiating categorical exclusions, clarifies the process for establishing categorical exclusions, outlines how agencies should engage the public when establishing and using categorical exclusions, describes how agencies can document the use of categorical exclusions, and recommends periodic agency review of existing categorical exclusions. Final Guidance for Federal Departments and Agencies on Establishing,

360

Process for applying control variables having fractal structures  

DOE Patents (OSTI)

A process and apparatus for the application of a control variable having a fractal structure to a body or process. The process of the present invention comprises the steps of generating a control variable having a fractal structure and applying the control variable to a body or process reacting in accordance with the control variable. The process is applicable to electroforming where first, second and successive pulsed-currents are applied to cause the deposition of material onto a substrate, such that the first pulsed-current, the second pulsed-current, and successive pulsed currents form a fractal pulsed-current waveform.

Bullock, IV, Jonathan S. (Oak Ridge, TN); Lawson, Roger L. (Oliver Springs, TN)

1996-01-01T23:59:59.000Z

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


361

C: Applying the Toyota Production System to a Hospital Pharmacy  

E-Print Network (OSTI)

This paper presents the early results of an action research project to apply the principles of the Toyota Production System to a hospital pharmacy. We demonstrate that work systems can be improved through Bowen and Spear’s [3] Rules-in-Use: defining activities better, making simpler and more direct connections, and/or smoothing pathways. We also extend this work by introducing a problem-solving tool to facilitate process improvement. The paper will describe the interventions attempted, the results, and implications for applying the Rules-in-Use to health care environments.

Durward K. Sobek; Cindy Jimmerson

2003-01-01T23:59:59.000Z

362

On proton CT reconstruction using MVCT-converted virtual proton projections  

Science Conference Proceedings (OSTI)

Purpose: To describe a novel methodology of converting megavoltage x-ray projections into virtual proton projections that are otherwise missing due to the proton range limit. These converted virtual proton projections can be used in the reconstruction of proton computed tomography (pCT). Methods: Relations exist between proton projections and multispectral megavoltage x-ray projections for human tissue. Based on these relations, these tissues can be categorized into: (a) adipose tissue; (b) nonadipose soft tissues; and (c) bone. These three tissue categories can be visibly identified on a regular megavoltage x-ray computed tomography (MVCT) image. With an MVCT image and its projection data available, the x-ray projections through heterogeneous anatomy can be converted to the corresponding proton projections using predetermined calibration curves for individual materials, aided by a coarse segmentation on the x-ray CT image. To show the feasibility of this approach, mathematical simulations were carried out. The converted proton projections, plotted on a proton sinogram, were compared to the simulated ground truth. Proton stopping power images were reconstructed using either the virtual proton projections only or a blend of physically available proton projections and virtual proton projections that make up for those missing due to the range limit. These images were compared to a reference image reconstructed from theoretically calculated proton projections. Results: The converted virtual projections had an uncertainty of {+-}0.8% compared to the calculated ground truth. Proton stopping power images reconstructed using a blend of converted virtual projections (48%) and physically available projections (52%) had an uncertainty of {+-}0.86% compared with that reconstructed from theoretically calculated projections. Reconstruction solely from converted virtual proton projections had an uncertainty of {+-}1.1% compared with that reconstructed from theoretical projections. If these images are used for treatment planning, the average proton range uncertainty is estimated to be less than 1.5% for an imaging dose in the milligray range. Conclusions: The proposed method can be used to convert x-ray projections into virtual proton projections. The converted proton projections can be blended with existing proton projections or can be used solely for pCT reconstruction, addressing the range limit problem of pCT using current therapeutic proton machines.

Wang Dongxu; Mackie, T. Rockwell; Tome, Wolfgang A. [Department of Medical Physics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53705 and Department of Radiation Oncology, University of Iowa Hospitals and Clinics, Iowa City, Iowa 52242 (United States); Department of Medical Physics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53705 and Morgridge Institute of Research, University of Wisconsin, Madison, Wisconsin 53715 (United States); Department of Medical Physics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53705 and Oncophysics Institute, Albert Einstein College of Medicine, Yeshiva University, Bronx, New York 10461 (United States)

2012-06-15T23:59:59.000Z

363

Reconstruction of f(T) gravity from the Holographic dark energy  

E-Print Network (OSTI)

Among different candidates to play the role of Dark Energy (DE), modified gravity has emerged as offering a possible unification of Dark Matter (DM) and DE. The purpose of this work is to develop a reconstruction scheme for the modified gravity with $f(T)$ action using holographic energy density. In the framework of the said modified gravity we have considered the equation of state of the Holographic DE (HDE) density. Subsequently we have developed a reconstruction scheme for modified gravity with $f(T)$ action. Finally we have obtained a modified gravity action consistent with the HDE scenario.

Chattopadhyay, Surajit

2012-01-01T23:59:59.000Z

364

Reconstruction of f(T) gravity from the Holographic dark energy  

E-Print Network (OSTI)

Among different candidates to play the role of Dark Energy (DE), modified gravity has emerged as offering a possible unification of Dark Matter (DM) and DE. The purpose of this work is to develop a reconstruction scheme for the modified gravity with $f(T)$ action using holographic energy density. In the framework of the said modified gravity we have considered the equation of state of the Holographic DE (HDE) density. Subsequently we have developed a reconstruction scheme for modified gravity with $f(T)$ action. Finally we have obtained a modified gravity action consistent with the HDE scenario.

Surajit Chattopadhyay; Antonio Pasqua

2012-11-09T23:59:59.000Z

365

Reconstruction of some cosmological models in f(R,T) gravity  

E-Print Network (OSTI)

In this paper, we reconstruct cosmological models in the framework of $f(R,T)$ gravity, where $R$ is the Ricci scalar and $T$ is the trace of the stress-energy tensor. We show that the dust fluid reproduces $\\Lambda $CDM, phantom-non-phantom era and the phantom cosmology. Further, we reconstruct different cosmological models including, Chaplygin gas, scalar field with some specific forms of $f(R,T)$. Our numerical simulation for Hubble parameter shows good agreement with the BAO observational data for low redshifts $z<2$.

Mubasher Jamil; D. Momeni; Muhammad Raza; Ratbay Myrzakulov

2011-07-28T23:59:59.000Z

366

Track Reconstruction and b-Jet Identification for the ATLAS Trigger System  

E-Print Network (OSTI)

A sophisticated trigger system, capable of real-time track reconstruction, is used in the ATLAS experiment to select interesting events in the proton-proton collisions at the Large Hadron Collider at CERN. A set of $b$-jet triggers was activated in ATLAS for the entire 2011 data-taking campaign and successfully selected events enriched in jets arising from heavy-flavour quarks. Such triggers were demonstrated to be crucial for the selection of events with no lepton signature and a large jet multiplicity. An overview of the track reconstruction and online $b$-jet selection with performance estimates from data is presented in these proceedings.

Andrea Coccaro

2011-12-01T23:59:59.000Z

367

Optimal design of measurement network for neutronic activity field reconstruction by data assimilation  

E-Print Network (OSTI)

Using data assimilation framework, to merge information from model and measurement, an optimal reconstruction of the neutronic activity field can be determined for a nuclear reactor core. In this paper, we focus on solving the inverse problem of determining an optimal repartition of the measuring instruments within the core, to get the best possible results from the data assimilation reconstruction procedure. The position optimisation is realised using Simulated Annealing algorithm, based on the Metropolis-Hastings one. Moreover, in order to address the optimisation computing challenge, algebraic improvements of data assimilation have been developed and are presented here.

Bertrand Bouriquet; Jean-Philippe Argaud; Romain Cugnart

2011-04-12T23:59:59.000Z

368

Characterization of adaptive statistical iterative reconstruction algorithm for dose reduction in CT: A pediatric oncology perspective  

Science Conference Proceedings (OSTI)

Purpose: This study demonstrates a means of implementing an adaptive statistical iterative reconstruction (ASiR Trade-Mark-Sign ) technique for dose reduction in computed tomography (CT) while maintaining similar noise levels in the reconstructed image. The effects of image quality and noise texture were assessed at all implementation levels of ASiR Trade-Mark-Sign . Empirically derived dose reduction limits were established for ASiR Trade-Mark-Sign for imaging of the trunk for a pediatric oncology population ranging from 1 yr old through adolescence/adulthood. Methods: Image quality was assessed using metrics established by the American College of Radiology (ACR) CT accreditation program. Each image quality metric was tested using the ACR CT phantom with 0%-100% ASiR Trade-Mark-Sign blended with filtered back projection (FBP) reconstructed images. Additionally, the noise power spectrum (NPS) was calculated for three common reconstruction filters of the trunk. The empirically derived limitations on ASiR Trade-Mark-Sign implementation for dose reduction were assessed using (1, 5, 10) yr old and adolescent/adult anthropomorphic phantoms. To assess dose reduction limits, the phantoms were scanned in increments of increased noise index (decrementing mA using automatic tube current modulation) balanced with ASiR Trade-Mark-Sign reconstruction to maintain noise equivalence of the 0% ASiR Trade-Mark-Sign image. Results: The ASiR Trade-Mark-Sign algorithm did not produce any unfavorable effects on image quality as assessed by ACR criteria. Conversely, low-contrast resolution was found to improve due to the reduction of noise in the reconstructed images. NPS calculations demonstrated that images with lower frequency noise had lower noise variance and coarser graininess at progressively higher percentages of ASiR Trade-Mark-Sign reconstruction; and in spite of the similar magnitudes of noise, the image reconstructed with 50% or more ASiR Trade-Mark-Sign presented a more smoothed appearance than the pre-ASiR Trade-Mark-Sign 100% FBP image. Finally, relative to non-ASiR Trade-Mark-Sign images with 100% of standard dose across the pediatric phantom age spectrum, similar noise levels were obtained in the images at a dose reduction of 48% with 40% ASIR Trade-Mark-Sign and a dose reduction of 82% with 100% ASIR Trade-Mark-Sign . Conclusions: The authors' work was conducted to identify the dose reduction limits of ASiR Trade-Mark-Sign for a pediatric oncology population using automatic tube current modulation. Improvements in noise levels from ASiR Trade-Mark-Sign reconstruction were adapted to provide lower radiation exposure (i.e., lower mA) instead of improved image quality. We have demonstrated for the image quality standards required at our institution, a maximum dose reduction of 82% can be achieved using 100% ASiR Trade-Mark-Sign ; however, to negate changes in the appearance of reconstructed images using ASiR Trade-Mark-Sign with a medium to low frequency noise preserving reconstruction filter (i.e., standard), 40% ASiR Trade-Mark-Sign was implemented in our clinic for 42%-48% dose reduction at all pediatric ages without a visually perceptible change in image quality or image noise.

Brady, S. L.; Yee, B. S.; Kaufman, R. A. [Department of Radiological Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee 38105 (United States)

2012-09-15T23:59:59.000Z

369

Bio 3A -Applying to Health Professional Schools Dental Schools  

E-Print Network (OSTI)

Bio 3A - Applying to Health Professional Schools Dental Schools Admission Requirements and Helpful Requirements: Biology (w/lab) 1 to 1 1/2 years (At UCI Bio 93, 94, 97, 98, 99, *100 minimum). Many schools will require 3 labs. *BioSci 100 is a prerequisite for taking Bio labs at UCI. Some schools will require

Barrett, Jeffrey A.

370

Bio 3A -Applying to Health Professional Schools Pharmacy Schools  

E-Print Network (OSTI)

Bio 3A - Applying to Health Professional Schools Pharmacy Schools Admission Requirements individual web sites. Pharmacy School Admission Requirements: Biology (w/lab) Bio 93, 94*, 97, 98, 99, 100, E not be an interpersonal communication course) ­ not offered at UCI *Bio 94 is the prerequisite of Bio 97, but not required

Barrett, Jeffrey A.

371

A Test Calculus Framework applied to network security policies  

E-Print Network (OSTI)

A Test Calculus Framework applied to network security policies Yli`es Falcone1 , Jean'H`eres, France Abstract. We propose a syntax-driven test generation technique to au- tomaticaly derive abstract test cases from a set of requirements expressed in a linear temporal logic. Assuming that an elementary

Paris-Sud XI, Université de

372

Applying Bayesian Network Techniques to Prioritize Lean Six Sigma Efforts  

Science Conference Proceedings (OSTI)

In order to retain competitive advantages, many manufacturing organizations have applied Lean Six Sigma techniques to improve production processes. The general approach for implementing Lean Six Sigma is to perform various projects to tackle specific ... Keywords: Bayesian Network, Cause-and-Effect Relationships, Events of Interest, Lean, Probabilistic Inference, Six Sigma

Yanzhen Li, Rapinder S. Sawhne, Joseph H. Wilck

2013-04-01T23:59:59.000Z

373

Proceedings of the 2005 ACM symposium on Applied computing  

Science Conference Proceedings (OSTI)

Welcome to the 20th Annual ACM Symposium on Applied Computing (SAC 2005) hosted by the New Mexico Institute of Mining and Technology, Socorro, New Mexico, USA. As the Conference Chair and on behalf of the organizing committee, thank you for participating ...

Hisham M. Haddad; Andrea Omicini; Roger L. Wainwright; Lorie M. Liebrock

2005-03-01T23:59:59.000Z

374

Applying High Performance Computing to Analyzing by Probabilistic Model Checking  

E-Print Network (OSTI)

Applying High Performance Computing to Analyzing by Probabilistic Model Checking Mobile Cellular on the use of high performance computing in order to analyze with the proba- bilistic model checker PRISM. The Figure Generation Script 22 2 #12;1. Introduction We report in this paper on the use of high performance

Schneider, Carsten

375

Book review Carbon Nanotube Science: Synthesis, Properties and Appli-  

E-Print Network (OSTI)

Book review Carbon Nanotube Science: Synthesis, Properties and Appli- cations, Peter J.F. Harris in the nanotube discovery is dis- cussed in the first chapter of this book), a few years after ful- lerenes were of the nanotechnology era ­ you'll find their pictures on book covers, in newspaper articles and magazine centerfolds

Harris, Peter J F

376

Applying General Access Structure to Metering Ventzislav Nikov  

E-Print Network (OSTI)

Applying General Access Structure to Metering Schemes Ventzislav Nikov Department of Mathematics.vandewalle@esat.kuleuven.ac.be Abstract In order to decide on advertisement fees for web servers, Naor and Pinkas introduced metering number of clients. Several researchers have generalized the idea of Naor and Pinkas: #12;rst metering

International Association for Cryptologic Research (IACR)

377

Applying General Access Structure to Metering Ventzislav Nikov  

E-Print Network (OSTI)

Applying General Access Structure to Metering Schemes Ventzislav Nikov Department of Mathematics.vandewalle@esat.kuleuven.ac.be Abstract In order to decide on advertisement fees for web servers, Naor and Pinkas introduced metering number of clients. Several researchers have generalized the idea of Naor and Pinkas: first metering

International Association for Cryptologic Research (IACR)

378

Modeling and simulation applied in modernization of energy production plants  

Science Conference Proceedings (OSTI)

The present work presents a methodology that has been developed and successfully applied to support the information requirements of engineers in charge of the operation, modernization, and/or maintenance of energy production plants (power, oil and gas). ... Keywords: CAD software, energy production, engineering design and data management, industrial plant, operation and maintenance support

Jesús Vázquez Bustos; Benjamín Eddie Zayas Pérez

2011-06-01T23:59:59.000Z

379

A companion modelling approach applied to forest management planning  

Science Conference Proceedings (OSTI)

To assist the Societe Civile des Terres du Larzac (SCTL) in its effort to develop alternative forest management plans, a group of researchers and extension officers proposed applying a companion modelling approach. The objective was to support forest ... Keywords: Companion modelling, Forest management, Livestock farming, Multi-agent system, Participatory modelling

C. Simon; M. Etienne

2010-11-01T23:59:59.000Z

380

Neutron activation analysis applied to energy and environment  

SciTech Connect

Neutron activation analysis was applied to a number of problems concerned with energy production and the environment. Burning of fossil fuel, the search for new sources of uranium, possible presence of toxic elements in food and water, and the relationship of trace elements to cardiovascular disease are some of the problems in which neutron activation was used. (auth)

Lyon, W.S.

1975-01-01T23:59:59.000Z

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


381

A general framework for three-dimensional surface reconstruction by self-consistent fusion of shading and shadow features  

Science Conference Proceedings (OSTI)

In this paper a novel framework for three-dimensional surface reconstruction by self-consistent fusion of shading and shadow features is presented. Based on the analysis of at least two pixel-synchronous images of the scene under different illumination ... Keywords: Lunar surface, Photoclinometry, Quality inspection, Shadow analysis, Shape from shading, Surface reconstruction

Christian Wöhler; Kia Hafezi

2005-07-01T23:59:59.000Z

382

A high dimensional delay selection for the reconstruction of proper phase space with cross auto-correlation  

Science Conference Proceedings (OSTI)

For the purpose of phase space reconstruction from nonlinear time series, delay selection is one of the most vital criteria. This is normally done by using a general measure viz., mutual information (MI). However, in that case, the delay selection is ... Keywords: Cross auto-correlation, Dynamical system, Phase space reconstructions, Shape distortion measure

Sanjay Kumar Palit, Sayan Mukherjee, D. K. Bhattacharya

2013-08-01T23:59:59.000Z

383

The effect of morphological smoothening by reconstruction on the extraction of peaks and pits from digital elevation models  

Science Conference Proceedings (OSTI)

In this paper, the effect of morphological smoothening by reconstruction on the extraction of peaks and pits from digital elevation models (DEMs) is studied. First, a mathematical morphological based algorithm to extract peaks and pits from DEMs is developed. ... Keywords: DEM smoothening, Digital elevation models, Kernel, Morphological smoothening by reconstruction, Peaks and pits

Dinesh Sathyamoorthy

2007-09-01T23:59:59.000Z

384

Optimization of the signal selection of exclusively reconstructed decays of B0 and B/s mesons at CDF-II  

SciTech Connect

The work presented in this thesis is mainly focused on the application in a {Delta}m{sub s} measurement. Chapter 1 starts with a general theoretical introduction on the unitarity triangle with a focus on the impact of a {Delta}m{sub s} measurement. Chapter 2 then describes the experimental setup, consisting of the Tevatron collider and the CDF II detector, that was used to collect the data. In chapter 3 the concept of parameter estimation using binned and unbinned maximum likelihood fits is laid out. In addition an introduction to the NeuroBayes{reg_sign} neural network package is given. Chapter 4 outlines the analysis steps walking the path from the trigger level selection to fully reconstructed B mesons candidates. In chapter 5 the concepts and formulas that form the ingredients to an unbinned maximum likelihood fit of {Delta}m{sub s} ({Delta}m{sub d}) from a sample of reconstructed B mesons are discussed. Chapter 6 then introduces the novel method of using neural networks to achieve an improved signal selection. First the method is developed, tested and validated using the decay B{sup 0} {yields} D{pi}, D {yields} K{pi}{pi} and then applied to the kinematically very similar decay B{sub s} {yields} D{sub s}{pi}, D{sub s} {yields} {phi}{pi}, {phi} {yields} KK. Chapter 7 uses events selected by the neural network selection as input to an unbinned maximum likelihood fit and extracts the B{sup 0} lifetime and {Delta}m{sub d}. In addition, an amplitude scan and an unbinned maximum likelihood fit of {Delta}m{sub s} is performed, applying the neural network selection developed for the decay channel B{sub s} {yields} D{sub s}{pi}, D{sub s} {yields} {phi}{pi}, {phi} {yields} KK. Finally chapter 8 summarizes and gives an outlook.

Doerr, Christian; /Karlsruhe U., EKP

2006-06-01T23:59:59.000Z

385

A method for the separation and reconstructions of charged hadron and neutral hadron from their overlapped showers in electromagnetic calorimeter  

E-Print Network (OSTI)

The separation and reconstructions of charged hadron and neutral hadron from their overlapped showers in electromagnetic calorimeter is very important for the reconstructions of some particles with hadronic decays, for example the tau reconstruction in the searches for the Standard Model and supersymmetric Higgs bosons at the LHC. In this paper, a method combining the shower cluster in electromagnetic calorimeter and the parametric formula for hadron showers, was developed to separate the overlapped showers between charged hadron and neutral hadron. Taking the hadronic decay containing one charged pion and one neutral pion in the final status of tau for example, satisfied results of the separation of the overlapped showers, the reconstructions of the energy and positions of the hadrons were obtained. An improved result for the tau reconstruction with this decay model can be also achieved after the application of the proposed method.

Liang Song; Tao Jun-Quan; Shen Yu-Qiao; Fan Jia-Wei; Xiao Hong; Chen Guo-Ming

2013-05-09T23:59:59.000Z

386

Simultaneous maximum-likelihood reconstruction for x-ray grating based phase-contrast tomography avoiding intermediate phase retrieval  

E-Print Network (OSTI)

Phase-wrapping artifacts, statistical image noise and the need for a minimum amount of phase steps per projection limit the practicability of x-ray grating based phase-contrast tomography, when using filtered back projection reconstruction. For conventional x-ray computed tomography, the use of statistical iterative reconstruction algorithms has successfully reduced artifacts and statistical issues. In this work, an iterative reconstruction method for grating based phase-contrast tomography is presented. The method avoids the intermediate retrieval of absorption, differential phase and dark field projections. It directly reconstructs tomographic cross sections from phase stepping projections by the use of a forward projecting imaging model and an appropriate likelihood function. The likelihood function is then maximized with an iterative algorithm. The presented method is tested with tomographic data obtained through a wave field simulation of grating based phase-contrast tomography. The reconstruction result...

Ritter, André; Durst, Jürgen; Gödel, Karl; Haas, Wilhelm; Michel, Thilo; Rieger, Jens; Weber, Thomas; Wucherer, Lukas; Anton, Gisela

2013-01-01T23:59:59.000Z

387

WorkOut: I/O workload outsourcing for boosting RAID reconstruction performance  

Science Conference Proceedings (OSTI)

User I/O intensity can significantly impact the performance of on-line RAID reconstruction due to contention for the shared disk bandwidth. Based on this observation, this paper proposes a novel scheme, called WorkOut (I/O Workload Outsourcing), to significantly ...

Suzhen Wu; Hong Jiang; Dan Feng; Lei Tian; Bo Mao

2009-02-01T23:59:59.000Z

388

Modeling the compressive deformation of metal micro-textured thermal interface materials using SEM geometry reconstruction  

Science Conference Proceedings (OSTI)

Idealized and simplified geometries are commonly used in finite element models to ease model creation and meshing. However, at smaller length-scales, the influence of geometrical imperfections and defects can significantly affect the accuracy of the ... Keywords: Buckling, Finite element modeling, Metal micro-textured thermal interface materials, Plastic deformation, SEM stereomicroscopy, Surface reconstruction

R. Kempers; P. Ahern; A. J. Robinson; A. M. Lyons

2012-02-01T23:59:59.000Z

389

Algorithms for Efficient Near-Perfect Phylogenetic Tree Reconstruction in Theory and Practice  

Science Conference Proceedings (OSTI)

We consider the problem of reconstructing near-perfect phylogenetic trees using binary character states (referred to as BNPP). A perfect phylogeny assumes that every character mutates at most once in the evolutionary tree, yielding an algorithm for binary ... Keywords: computations on discrete structures, trees, biology and genetics

Srinath Sridhar; Kedar Dhamdhere; Guy Blelloch; Eran Halperin; R. Ravi; Russell Schwartz

2007-10-01T23:59:59.000Z

390

Parallelization of an existing high-energy physics event reconstruction software package  

E-Print Network (OSTI)

Software parallelization allows an efficient use of available computing power to in- crease the performance of applications. In a case study we have investigated the parallelization of high-energy physics event reconstruction software in terms of costs (effort, computing resource requirements), benefits (performance increase), and the feasibility of a systematic parallelization approach. Guidelines facilitating a parallel implementation are proposed for future software development.

Schiefer, R

1995-01-01T23:59:59.000Z

391

Incorporating knowledge of topology improves reconstruction of interaction networks from microarray data  

Science Conference Proceedings (OSTI)

Reconstruction of biological interaction networks from high-throughput experimental data is one of the most challenging problems in bioinformatics.These networks have specific topologies, whose characteristics aredefined by evolutionary relationships ... Keywords: co-expression network, gene expression, gene ontology, network topology, rank-based algorithm

Peter Larsen; Eyad Almasri; Guanrao Chen; Yang Dai

2008-05-01T23:59:59.000Z

392

Robust nuclear signal reconstruction by a novel ensemble model aggregation procedure P. Baraldi1  

E-Print Network (OSTI)

of a nuclear boiling water reactor and 215 signals measured at a pressurized water reactor. The advantagesRobust nuclear signal reconstruction by a novel ensemble model aggregation procedure P. Baraldi1 Reactor Project, 1751, Halden, Norway Abstract Monitoring of sensor operation is important for detecting

393

Remote sensing approaches for reconstructing fire perimeters and burn severity mosaics in desert spring ecosystems  

E-Print Network (OSTI)

Remote sensing approaches for reconstructing fire perimeters and burn severity mosaics in desert. Remote sensing methods have been used in other environments to gain information about fires that have reported sizes of less than one hectare. Additional refinement of remote sensing methods is necessary

Weisberg, Peter J.

394

Multi-fiber Reconstruction from DW-MRI using a Continuous Mixture of Hyperspherical von  

E-Print Network (OSTI)

Multi-fiber Reconstruction from DW-MRI using a Continuous Mixture of Hyperspherical von Mises Magnetic Resonance Imaging (DW-MRI), arguably one of the most important imaging inventions of the twentieth geometries such as fiber crossings ( [21, 17, 6]) and connectivity of different brain regions ([8]). DW

Kumar, Ritwik

395

A PHYSICAL BASIS FOR MULTI-FIBER RECONSTRUCTION FROM DW-MRI DATA Ritwik Kumar1  

E-Print Network (OSTI)

A PHYSICAL BASIS FOR MULTI-FIBER RECONSTRUCTION FROM DW-MRI DATA Ritwik Kumar1 , Angelos Barmpoutis to model the signal attenuation obtained from Diffusion Weighted Magnetic Resonance Imaging (DW-value, gradient pulse duration, pulse separation etc.) involved in the DW-MRI acquisition pro- cess. To address

Kumar, Ritwik

396

Greenland Ice Sheet Mass Balance Reconstruction. Part I: Net Snow Accumulation (1600–2009)  

Science Conference Proceedings (OSTI)

Ice core data are combined with Regional Atmospheric Climate Model version 2 (RACMO2) output (1958–2010) to develop a reconstruction of Greenland ice sheet net snow accumulation rate, Ât(G), spanning the years 1600–2009. Regression parameters from ...

Jason E. Box; Noel Cressie; David H. Bromwich; Ji-Hoon Jung; Michiel van den Broeke; J. H. van Angelen; Richard R. Forster; Clement Miège; Ellen Mosley-Thompson; Bo Vinther; Joseph R. McConnell

2013-06-01T23:59:59.000Z

397

Smartphones get emotional: mind reading images and reconstructing the neural sources  

Science Conference Proceedings (OSTI)

Combining a wireless EEG headset with a smartphone offers new opportunities to capture brain imaging data reflecting our everyday social behavior in a mobile context. However processing the data on a portable device will require novel approaches to analyze ... Keywords: affective computing, mobile EEG, source reconstruction

Michael Kai Petersen; Carsten Stahlhut; Arkadiusz Stopczynski; Jakob Eg Larsen; Lars Kai Hansen

2011-10-01T23:59:59.000Z

398

Sei Vojany Station repowering reconstruction-assessment feasibility study. Volume 1. Export trade information  

SciTech Connect

The feasibility study conducted for Slovensky Energeticky Podnik (Slovak Energy Production Company) (SEP) evaluates reconstruction, repowering, and expansion of SEP's Vojany Station (EVO). Previous evaluations, studies, station records, and technical data were reviewed and utilized as a part of the feasibility analysis. The study results recommend a time-phased implementation for the recommended solutions.

Not Available

1992-01-01T23:59:59.000Z

399

Discussion on Energy-Efficient Technology for the Reconstruction of Residential Buildings in Cold Areas  

E-Print Network (OSTI)

: Based on the existing residential buildings in cold areas, this paper takes the existing residential buildings in a certain district in Beijing to provide an analysis of the thermal characteristics of envelope and energy consumption in winter with the software PKPM, and provides the technical and economic analysis, which may provide reference for suitable plans for energy efficient reconstruction of buildings in cold areas.

Zhao, J.; Wang, S.; Chen, H.; Shi, Y.; Li, D.

2006-01-01T23:59:59.000Z

400

Reconstructing Basin-Scale Eulerian Velocity Fields from Simulated Drifter Data  

Science Conference Proceedings (OSTI)

A single-layer, reduced-gravity, double-gyre primitive equation model in a 2000 km × 2000 km square domain is used to test the accuracy and sensitivity of time-dependent Eulerian velocity fields reconstructed from numerically generated drifter ...

M. Toner; A. D. Kirwan Jr.; B. L. Lipphardt; A. C. Poje; C. K. R. T. Jones; C. E. Grosch

2001-05-01T23:59:59.000Z

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


401

An algorithm-architecture co-design framework for gridding reconstruction using FPGAs  

Science Conference Proceedings (OSTI)

Gridding is a method of interpolating irregularly sampled data on to a uniform grid and is a critical image reconstruction step in several applications which operate on non-Cartesian sampled data. In this paper, we present an algorithm architecture co-design ... Keywords: BEE3, Cartesian, Taylor polynomial evaluation, gridding, nonuniform fast fourier transform, polar

Srinidhi Kestur; Kevin Irick; Sungho Park; Ahmed Al Maashri; Vijaykrishnan Narayanan; Chaitaili Chakrabarti

2011-06-01T23:59:59.000Z

402

The Citadel of Cairo, 1176-1341 : reconstructing architecture from texts  

E-Print Network (OSTI)

This dissertation reconstructs one of the major works of military and palatial architecture in the Middle Ages, the Citadel of the Mountain (QaI'at aI-Jabal) in Cairo. It traces its development from its inception in 1176 ...

Rabbat, Nasser O. (Nasser Omar)

1991-01-01T23:59:59.000Z

403

Reconstructed streamflow for Citarum River, Java, Indonesia: linkages to tropical climate dynamics  

E-Print Network (OSTI)

Reconstructed streamflow for Citarum River, Java, Indonesia: linkages to tropical climate dynamics Abstract The Citarum river basin of western Java, Indonesia, which supplies water to 10 million residents in drought and flood prone regions of the globe (e.g. Boer 2007). In Indonesia, integrated action is needed

Ummenhofer, Caroline C.

404

The quasi-perspective model: Geometric properties and 3D reconstruction  

Science Conference Proceedings (OSTI)

The paper investigates geometric properties of quasi-perspective projection model in one and two-view geometry. The main results are as follows. (i) Quasi-perspective projection matrix has nine degrees of freedom (DOF), and the parallelism along X and ... Keywords: 3D reconstruction, Essential matrix, Fundamental matrix, Homography, Projective geometry, Quasi-perspective projection

Guanghui Wang; Q. M. Jonathan Wu

2010-05-01T23:59:59.000Z

405

Affine invariant matching of broken boundaries based on simple genetic algorithm and contour reconstruction  

Science Conference Proceedings (OSTI)

Viewpoint independent identification of fragmented object contours can be accomplished by matching them against a collection of known reference models. For the class of near-planar objects, the matching process can be posed as the search for the existence ... Keywords: Affine invariant matching, Contour reconstruction, Fragmented contours, Migrant principle, Quality migrants, Simple genetic algorithm

P. W. M. Tsang; W. C. Situ

2010-07-01T23:59:59.000Z

406

Mastering Windows: Improving Reconstruction Thomas Theul Helwig Hauser Eduard Groller \\Lambda  

E-Print Network (OSTI)

Mastering Windows: Improving Reconstruction Thomas Theu�l Helwig Hauser Eduard Gr¨oller \\Lambda­Rom spline and derivative and (c) Kaiser windowed sinc and cosc of width three with numerically optimal. This can be accomplished by multiplying them with windowing functions. In this paper we discuss and assess

407

A subspace method for projective reconstruction from multiple images with missing data  

Science Conference Proceedings (OSTI)

In this paper, we consider the problem of projective reconstruction based on the subspace method. Unlike existing subspace methods which require that all the points are visible in all views, we propose an algorithm to estimate projective shape, projective ... Keywords: Factorization method, Multiple views, Structure from motion, Subspace method

W. K. Tang; Y. S. Hung

2006-05-01T23:59:59.000Z

408

Marginal Hilbert Spectrum Based on EMD Reconstruction and its Application in Fault Diagnosis of Cooling Tower  

Science Conference Proceedings (OSTI)

HHT (Hilbert-Huang Transform) is one kind of adaptive signal processing method and it is suitable for processing nonlinear and non-stationary signal. Amplitude-frequency characteristics of signal are accurately demonstrated through marginal Hilbert spectrum ... Keywords: Vibration signal, marginal Hilbert spectrum, Reconstruction filter, Fault diagnosis, Cooling tower

He Dhengyun, Yi Ding

2013-01-01T23:59:59.000Z

409

ACL Reconstruction with Autologous Hamstring Tendon: Comparison of Short Term Clinical Results  

E-Print Network (OSTI)

Purpose: To compare the short term clinical results of anterior cruciate ligament (ACL) reconstruction with autologous hamstring tendon between Rigid-fix and PINN-ACL Cross Pin for femoral side fixation. Materials and Methods: 127 patients who underwent arthroscopic ACL reconstruction using autologous hamstring tendon and had been followedup for over than one year were enrolled for the present study. Rigid-fix was used in 71 cases (group 1), and PINN-ACL Cross Pin was used in 56 cases (group 2). Clinical and radiological results, operation time, and perioperative complications were compared amongst the two groups. Results: The International Knee Documentation Committee subjective score and Lysholm score were 94 and 95 in group 1 and 87 and 91 in group 2, with no statistical difference (p=0.892, p=0.833), respectively. However, significant difference was observed in one-leg hop test between the two groups (p=0.032). Five cases in group 1 and 40 cases in group 2 were found to be associated with perioperative complications with statistical difference (p<0.0001). Conclusions: There was no resultant difference between the employment of PINN-ACL Cross Pin and Rigid-fix as femoral graft fixation for ACL reconstruction with hamstring tendon. However, PINN-ACL Cross Pin led to complications with extensive operation times. Hence, it needs further improvement of tools for minimization of complications. Key words: Anterior cruciate ligament reconstruction, Hamstring tendon, Rigid-fix, PINN-ACL Cross Pin.

Knee Surg; Relat Res; Between Rigid-fix; Pinn-acl Cross Pin

2011-01-01T23:59:59.000Z

410

Reconstructing The Trajectory of The August 1680 Hurricane From Contemporary Records  

Science Conference Proceedings (OSTI)

This paper draws on a range of contemporary documentary evidence from the New and Old Worlds as well as from the oceanic regions to reconstruct the trajectory and intensity of an Atlantic hurricane from August 1680. In doing so, it offers the ...

D. Wheeler; R. García-Herrera; J. M. Vaquero; M. Chenoweth; C. J. Mock

2009-07-01T23:59:59.000Z

411

Reconstruction and flux-balance analysis of the Plasmodium falciparum metabolic network  

E-Print Network (OSTI)

- balanced model of this organism is of direct relevance to the ongoing search to identify new therapeutic- mine the stoichiometry of most reactions. To produce a functional reconstruction, we also searched Glycolysis Schnick et al (2009) PF14_0425* Fructose-bisphosphate aldolase 4.1.2.13 Pfal NLe,q NLc Glycolysis

Vitkup, Dennis

412

http://rcc.its.psu.edu/hpc Low Elevation Aerial Photogrammetry for 3D Reconstructions of  

E-Print Network (OSTI)

-wing aerial photogrammetry. Conducting a topographic survey using laser transits and total stations is time topographic data over large areas. However, in the case of most fixed-wing aerial photographic surveyshttp://rcc.its.psu.edu/hpc Low Elevation Aerial Photogrammetry for 3D Reconstructions

Bjørnstad, Ottar Nordal

413

IMShare: instantly sharing your mobile landmark images by search-based reconstruction  

Science Conference Proceedings (OSTI)

Instantly sharing captured landmark images is becoming fashionable, much like when you write a blog or chat with friends by mobile phone. However, real-time transmission of high-resolution images poses a significant challenge to contemporary mobile networks. ... Keywords: image reconstruction, image sharing, partial duplicate image retrieval, sift descriptor

Lican Dai; Huanjing Yue; Xiaoyan Sun; Feng Wu

2012-10-01T23:59:59.000Z

414

BEP project for Applied Mathematics/Applied Physics double degree Numerical solution of a three-dimensional electromagnetic  

E-Print Network (OSTI)

-dimensional electromagnetic force field Imagine a quadratic piece of metal, which is subject to a static current flux at its top boundary and insulated at the bottom. Assuming the current flux to be of Gaussian shape and applying suitable boundary conditions, we can derive equations to describe the current flux in the metal

Vuik, Kees

415

A Quick Guide for Applying at Mason Applying online is as easy as 1-2-3!  

E-Print Network (OSTI)

Jobs" from the quick links.. You can search jobs in the following ways: · Keywords - enter your own search terms · Posted Within - a drop-down list will appear ­ select from day, week, or month Innovation Is Tradition Page 1 of 6 11/15/2012 #12;A Quick Guide for Applying at Mason Step 1: Search

416

International Institute for Applied Systems Analysis | Open Energy  

Open Energy Info (EERE)

Analysis Analysis Jump to: navigation, search Logo: International Institute for Applied Systems Analysis Name International Institute for Applied Systems Analysis Address Schlossplatz 1, A-2361 Place Laxenburg, Austria Number of employees 201-500 Year founded 1972 Phone number (+43 2236) 807 0 Coordinates 48.0682549°, 16.358201° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":48.0682549,"lon":16.358201,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

417

Argonne applied mathematicians use INCITE awards to attack energy problems  

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

Argonne applied mathematicians use INCITE awards to attack energy problems Argonne applied mathematicians use INCITE awards to attack energy problems March 27, 2013 Tweet EmailPrint What is the best possible power grid configuration for our nation? How can we balance the increasing demands for power while minimizing costs and avoiding waste of resources? Last year, Mihai Anitescu, a computational mathematician in Argonne's Mathematics and Computer Science Division. received DOE funding to establish the Multifaceted Mathematics for Complex Energy Systems (M2ACS) to tackle these questions. As part of the M2ACS research, Anitescu and his colleagues at Argonne are focusing on ways to optimize the effects of randomly changing variables, say, in wind or resource demand. Such variables can number into the billions. And to be useful for energy systems planning, any calculations

418

Generative Design Systems Applied to Low-Energy Buildings  

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

Generative Design Systems Applied to Low-Energy Buildings Generative Design Systems Applied to Low-Energy Buildings Speaker(s): Maria Luisa de Oliveira Gama Caldas Date: March 15, 2012 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Paul Mathew Generative Design Systems (GDS) represent a step beyond parametric models, integrating design goals, building simulations and shape generation. In this seminar, present and future research projects on the application of different GDS to low-energy buildings are discussed. The software GENE_ARCH integrates energy simulations with multicriteria search methods such as pareto genetic algorithms, to locate acceptable alternatives that move the current design towards performance goals set by the user. DIVA, a system that integrates parametric geometrical modeling with Radiance, Daysim and

419

Environmental Impact and Sustainability Applied General Equilibrium Model  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Environmental Impact and Sustainability Applied General Equilibrium Model (ENVISAGE) Jump to: navigation, search LEDSGP green logo.png FIND MORE DIA TOOLS This tool is part of the Development Impacts Assessment (DIA) Toolkit from the LEDS Global Partnership. Tool Summary LAUNCH TOOL Name: Environmental Impact and Sustainability Applied General Equilibrium Model (ENVISAGE) Agency/Company /Organization: World Bank Sector: Climate Topics: Analysis Tools Complexity/Ease of Use: Advanced Website: go.worldbank.org/ZC77UJYJ50 Related Tools TransportToolkit Prototype Threshold 21 Model General Equilibrium Modeling Package (GEMPACK) ... further results Designed to analyze a variety of issues related to the economics of climate

420

Applied Super Conductor Group, Oxide Molecular Beam Epitaxy Group,  

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

AEMG Homepage AEMG Homepage Site Details Homepage Research Publications Presentations Facilities How to Contact Us Other Information Basic Energy Sciences Directorate Links BNL Site Index Can't View PDFs? Advanced Energy Materials Group Applied Superconductivity The applied superconductivity research (past funded by DOE Office of Electricity Delivery and Energy Reliability) is related to modernization of the U.S. power grid. One direction of the modernization is replacement of normal metal (copper, aluminum) transmission lines with High Temperature Superconducting (HTS) cables. Our group concentrates its effort on studying fundamental thermodynamics of nucleation and texture development of thick YBCO layers. High-performance YBCO layer is a critical element of modern second generation (2G) HTS wire.

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

Fifth SIAM conference on applied linear algebra. Final report  

SciTech Connect

The SIAM Conferences on Applied Linear Algebra are the centerpiece of activities for the SIAG on Linear Algebra. They are held every three years and bring together a diverse group of applied linear algebraists, representing industry, government and academics in both matrix theory and matrix computations. This sequence of conferences has two related goals: (1) to be useful and interesting to linear algebraists of every area of specialization, and, (2) to develop and expose connections among problems in different areas. Many aspects of the 1994 conference were carefully chosen to enhance interchange between the various groups and yet still provide a solid focus on specialities. The organizing committee adopted a new meeting structure to resolve the conflict between these two goals at earlier meetings in the series. We have prepared this report for others who may wish to consider our structure as an alternative to more traditional arrangements.

Lewis, J.G.; Gilbert, J.R.; Parlett, B.N.

1994-11-16T23:59:59.000Z

422

Applied Science Division annual report, Environmental Research Program FY 1983  

Science Conference Proceedings (OSTI)

The primary concern of the Environmental Research Program is the understanding of pollutant formation, transport, and transformation and the impacts of pollutants on the environment. These impacts include global, regional, and local effects on the atmosphere and hydrosphere, and on certain aspects of human health. This multidisciplinary research program includes fundamental and applied research in physics, chemistry, engineering, and biology, as well as research on the development of advanced methods of measurement and analysis. During FY 1983, research concentrated on atmospheric physics and chemistry, applied physics and laser spectroscopy, combustion theory and phenomena, environmental effects of oil shale processing, freshwater ecology and acid precipitation, trace element analysis for the investigation of present and historical environmental impacts, and a continuing survey of instrumentation for environmental monitoring.

Cairns, E.J.; Novakov, T.

1984-05-01T23:59:59.000Z

423

Magnetic response to applied electrostatic field in external magnetic field  

E-Print Network (OSTI)

We show, within QED and other possible nonlinear theories, that a static charge localized in a finite domain of space becomes a magnetic dipole, if it is placed in an external (constant and homogeneous) magnetic field in the vacuum. The magnetic moment is quadratic in the charge, depends on its size and is parallel to the external field, provided the charge distribution is at least cylindrically symmetric. This magneto-electric effect is a nonlinear response of the magnetized vacuum to an applied electrostatic field. Referring to a simple example of a spherically-symmetric applied field, the nonlinearly induced current and its magnetic field are found explicitly throughout the space, the pattern of lines of force is depicted, both inside and outside the charge, which resembles that of a standard solenoid of classical magnetostatics.

T. C. Adorno; D. M. Gitman; A. E. Shabad

2013-11-16T23:59:59.000Z

424

1984 Review of the Applied Plasma Physics Program  

SciTech Connect

This report describes the present and planned programs of the Division of Applied Plasma Physics (APP), Office of Fusion Energy. The major activities of the division include fusion theory, experimental plasma research, advanced fusion concepts, and the magnetic fusion energy computer network. The planned APP program is consistent with the recently issued Comprehensive Program Management Plan for Magnetic Fusion Energy, which describes the overall objectives and strategy for the development of fusion energy.

1984-09-01T23:59:59.000Z

425

Sodium-Bearing Waste Treatment, Applied Technology Plan  

SciTech Connect

Settlement Agreement between the Department of Energy and the State of Idaho mandates treatment of sodium-bearing waste at the Idaho Nuclear Technology and Engineering Center within the Idaho National Engineering and Environmental Laboratory. One of the requirements of the Settlement Agreement is to complete treatment of sodium-bearing waste by December 31, 2012. Applied technology activities are required to provide the data necessary to complete conceptual design of four identified alternative processes and to select the preferred alternative. To provide a technically defensible path forward for the selection of a treatment process and for the collection of needed data, an applied technology plan is required. This document presents that plan, identifying key elements of the decision process and the steps necessary to obtain the required data in support of both the decision and the conceptual design. The Sodium-Bearing Waste Treatment Applied Technology Plan has been prepared to provide a description/roadmap of the treatment alternative selection process. The plan details the results of risk analyzes and the resulting prioritized uncertainties. It presents a high-level flow diagram governing the technology decision process, as well as detailed roadmaps for each technology. The roadmaps describe the technical steps necessary in obtaining data to quantify and reduce the technical uncertainties associated with each alternative treatment process. This plan also describes the final products that will be delivered to the Department of Energy Idaho Operations Office in support of the office's selection of the final treatment technology.

Lance Lauerhass; Vince C. Maio; S. Kenneth Merrill; Arlin L. Olson; Keith J. Perry

2003-06-01T23:59:59.000Z

426

Optimized image acquisition for breast tomosynthesis in projection and reconstruction space  

SciTech Connect

Breast tomosynthesis has been an exciting new development in the field of breast imaging. While the diagnostic improvement via tomosynthesis is notable, the full potential of tomosynthesis has not yet been realized. This may be attributed to the dependency of the diagnostic quality of tomosynthesis on multiple variables, each of which needs to be optimized. Those include dose, number of angular projections, and the total angular span of those projections. In this study, the authors investigated the effects of these acquisition parameters on the overall diagnostic image quality of breast tomosynthesis in both the projection and reconstruction space. Five mastectomy specimens were imaged using a prototype tomosynthesis system. 25 angular projections of each specimen were acquired at 6.2 times typical single-view clinical dose level. Images at lower dose levels were then simulated using a noise modification routine. Each projection image was supplemented with 84 simulated 3 mm 3D lesions embedded at the center of 84 nonoverlapping ROIs. The projection images were then reconstructed using a filtered backprojection algorithm at different combinations of acquisition parameters to investigate which of the many possible combinations maximizes the performance. Performance was evaluated in terms of a Laguerre-Gauss channelized Hotelling observer model-based measure of lesion detectability. The analysis was also performed without reconstruction by combining the model results from projection images using Bayesian decision fusion algorithm. The effect of acquisition parameters on projection images and reconstructed slices were then compared to derive an optimization rule for tomosynthesis. The results indicated that projection images yield comparable but higher performance than reconstructed images. Both modes, however, offered similar trends: Performance improved with an increase in the total acquisition dose level and the angular span. Using a constant dose level and angular span, the performance rolled off beyond a certain number of projections, indicating that simply increasing the number of projections in tomosynthesis may not necessarily improve its performance. The best performance for both projection images and tomosynthesis slices was obtained for 15-17 projections spanning an angular arc of {approx}45 deg. - the maximum tested in our study, and for an acquisition dose equal to single-view mammography. The optimization framework developed in this framework is applicable to other reconstruction techniques and other multiprojection systems.

Chawla, Amarpreet S.; Lo, Joseph Y.; Baker, Jay A.; Samei, Ehsan [Department of Radiology and Department of Biomedical Engineering, Duke Advanced Imaging Laboratories, Duke University, Durham, North Carolina 27705 (United States); Department of Radiology, Department of Medical Physics, and Department of Biomedical Engineering, Duke Advanced Imaging Laboratories, Duke University Durham, North Carolina 27705 (United States); Department of Radiology, Duke Advanced Imaging Laboratories, Duke University Durham, North Carolina 27705 (United States); Department of Radiology, Department of Medical Physics, and Department of Biomedical Engineering, Duke Advanced Imaging Laboratories, Duke University Durham, North Carolina 27705 (United States)

2009-11-15T23:59:59.000Z

427

Opportunities to Apply Phase Change Materials to Building Enclosures Webinar  

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

1, 2011 1, 2011 Opportunities to Apply Phase Change Materials to Building Enclosures Welcome to the Webinar! We will start at 2:00 PM Eastern Time Be sure that you are also dialed into the telephone conference call: Dial-in number: 888-950-6757; Pass code: 6420234 1 | Building America Program www.buildingamerica.gov Building America: Introduction November 11, 2011 Chuck Booten Chuck.Booten@nrel.gov Building Technologies Program 2 | Building America Program www.buildingamerica.gov * Reduce energy use in new and existing residential buildings * Promote building science and systems engineering / integration approach * "Do no harm": Ensure safety, health and durability are maintained or improved

428

Applying a Model Transformation Taxonomy to Graph Transformation Technology  

E-Print Network (OSTI)

A taxonomy of model transformations was introduced in [16]. Among others, such a taxonomy can help developers in deciding which language, forma lism, tool or mechanism is best suited to carry out a particular model transformation activity. In this paper we apply the taxonomy to the technique of graph transformation, and we exemplify it by referring to four representative graph transformation tools. As a byproduct of our analysis, we discuss how well each of the considered tools carry out the activity of model transformation.

Tom Mens; Pieter Van Gorp; Dániel Varró; Gabor Karsai

2005-01-01T23:59:59.000Z

429

Towards Applying Reengineering Services to Energy-Efficient Applications  

E-Print Network (OSTI)

Abstract—Conserving resources and saving energy has become an important issue for information and communication technology. With increasing adoption of smartphones and tablet PCs, reducing energy consumption in mobile computing is of particular significance. User expectations towards their mobile devices are rising, and functionality is increasing. Accordingly, available energy is made a scarce resource. This paper discusses how software reengineering techniques, like dynamic analysis and refactoring, can be applied to the field of energy-aware computing, to monitor, analyze, and optimize the energy profile of mobile applications and devices.

Jan Jelschen Marion Gottschalk

2012-01-01T23:59:59.000Z

430

ENERGY STAR Industrial Plant Certification: Instructions for applying |  

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

Industrial Plant Certification: Instructions for Industrial Plant Certification: Instructions for applying Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In This Section Campaigns Commercial building design Communications resources Energy management guidance Financial resources Portfolio Manager Products and purchasing Recognition Research and reports Service and product provider (SPP) resources

431

Hazardous Gases VASILIS M. FTHENAKIS Department of Applied Science  

Office of Scientific and Technical Information (OSTI)

Mitigation Options for Mitigation Options for Accidental Releases of Hazardous Gases VASILIS M. FTHENAKIS Department of Applied Science Brookhaven National Laboratory Upton, N Y 11973 ABSTRACT The objective of this paper is to review and compare technologies available for mitigation of unconfined releases of toxic and flammable gases. These technologies indude: secondary confinement, de- inventory, vapor barriers, foam spraying, and water sprays/monitors. Guidelines for the design and/or operation of effective post-release mitigation systems and case studies involving actual industrial mitigation systems are also presented. 1. ACCIDENT PREVENTION & MITIGATION OPTIONS Accident prevention and mitigation in the process industries is based on the military concept of defense in

432

Applying pomdps to dialog systems in the troubleshooting domain  

E-Print Network (OSTI)

This paper reports on progress applying partially observable Markov decision processes (POMDPs) to a commercial dialog domain: troubleshooting. In the troubleshooting domain, a spoken dialog system helps a user to fix a product such as a failed DSL connection. Past work has argued that a POMDP is a principled approach to building spoken dialog systems in the simpler slot-filling domain; this paper explains how the POMDPs formulation can be extended to the more complex troubleshooting domain. Results from dialog simulation verify that a POMDP outperforms a handcrafted baseline. 1

Jason D. Williams

2007-01-01T23:59:59.000Z

433

Applying Learnable Evolution Model to Heat Exchanger Design  

E-Print Network (OSTI)

A new approach to evolutionary computation, called Learnable Evolution Model (LEM), has been applied to the problem of optimizing tube structures of heat exchangers. In contrast to conventional Darwiniantype evolutionary computation algorithms that use various forms of mutation and/or recombination operators, LEM employs machine learning to guide the process of generating new individuals. A system, ISHED1, based on LEM, automatically searches for the highest capacity heat exchangers under given technical and environmental constraints. The results of experiments have been highly promising, often producing solutions exceeding the best human designs.

Kenneth A. Kaufman; Ryszard S. Michalski

2000-01-01T23:59:59.000Z

434

Loop Quantum Theory Applied to Biology and Nonlinear Whole Biology  

E-Print Network (OSTI)

The loop quantum theory, which constitutes a very small discontinuous space, as new method is applied to biology. The model of protein folding and lungs is proposed. In the model, some known results are used, and four approximate conclusions are obtained: their structures are quantized, their space regions are finite, various singularities correspond to folding and crossed points, and different types of catastrophe exist. Further, based on the inseparability and correlativity of the biological systems, the nonlinear whole biology is proposed, and four basic hypotheses are formed. It may unify reductionism and holism, structuralism and functionalism. Finally, the medical meaning of the theory is discussed briefly.

Yi-Fang Chang

2008-01-02T23:59:59.000Z

435

Research on computed tomography reconstructions from one or two radiographs: A report and the application to FXR radiography  

SciTech Connect

This report documents some cooperative research into volumetric image reconstruction from single radiographs. Imaging dynamic events is the most important application for this type of work, but the techniques have possible extensions. Two general objectives guide this work. The first objective is to gain an understanding of the assumptions and limitations of single-view methods for representing internal features. Second, we endeavor to obtain and/or develop techniques for performing image reconstructions with FXR radiographs. If possible, we seek to obtain some quantitative measure of the accuracy of this class of image reconstructions in two respects: (i) in terms of the dimensional accuracy of feature boundaries, and (ii) as pertains to the accuracy of the voxel intensities. Dynamic events are not always self-calibrating, and it is important to establish the reconstruction accuracy of single-view methods for placing bounds on the kinds of conclusions which can be advanced from single-view reconstructed images. Computed tomographic image reconstructions provide dimensional detail of internal structures of objects and provide a measure of the per-voxel attenuation of material in the object. When assumptions behind a reconstruction algorithm are not satisfied, or are satisfied in a limited way, the accuracy of the reconstructed image is compromised. It is the goal of Cr analysis to discern the {open_quotes}real{close_quotes} features of the internals of an object in the midst of a certain level of artifactual content in the image. By understanding the ways in which CT reconstructions from a single radiograph can produce misleading results we hope to develop some measure of the benefits and limitations of single view techniques. 31 refs., 20 figs.

Back, N.; Schneberk, D.; McMillan, C.; Azevedo, S.; Gorvad, M.

1995-01-26T23:59:59.000Z

436

Component mode synthesis methods applied to 3D heterogeneous core calculations, using the mixed dual finite element solver MINOS  

Science Conference Proceedings (OSTI)

This paper describes a new technique for determining the pin power in heterogeneous core calculations. It is based on a domain decomposition with overlapping sub-domains and a component mode synthesis technique for the global flux determination. Local basis functions are used to span a discrete space that allows fundamental global mode approximation through a Galerkin technique. Two approaches are given to obtain these local basis functions: in the first one (Component Mode Synthesis method), the first few spatial eigenfunctions are computed on each sub-domain, using periodic boundary conditions. In the second one (Factorized Component Mode Synthesis method), only the fundamental mode is computed, and we use a factorization principle for the flux in order to replace the higher order Eigenmodes. These different local spatial functions are extended to the global domain by defining them as zero outside the sub-domain. These methods are well-fitted for heterogeneous core calculations because the spatial interface modes are taken into account in the domain decomposition. Although these methods could be applied to higher order angular approximations - particularly easily to a SPN approximation - the numerical results we provide are obtained using a diffusion model. We show the methods' accuracy for reactor cores loaded with UOX and MOX assemblies, for which standard reconstruction techniques are known to perform poorly. Furthermore, we show that our methods are highly and easily parallelizable. (authors)

Guerin, P.; Baudron, A. M.; Lautard, J. J. [Commissariat a l'Energie Atomique, DEN/DANS/DM2S/SERMA/LENR, CEA Saclay, 91191 Gif sur Yvette (France)

2006-07-01T23:59:59.000Z

437

EG&G Mound Applied Technologies payroll system  

Science Conference Proceedings (OSTI)

EG&G Mound Applied Technologies, Inc., manages and operates the Mound Facility, Miamisburg, Ohio, under a cost-plus-award-fee contract administered by the Department of Energy`s Albuquerque Field Office. The contractor`s Payroll Department is responsible for prompt payment in the proper amount to all persons entitled to be paid, in compliance with applicable laws, regulations, and legal decisions. The objective was to determine whether controls were in place to avoid erroneous payroll payments. EG&G Mound Applied Technologies, Inc., did not have all the internal controls required by General Accounting Office Title 6, ``Pay, Leave, and Allowances.`` Specifically, they did not have computerized edits, separation of duties and responsibilities, and restricted access to payroll data files. This condition occurred because its managers were not aware of Title 6 requirements. As a result, the contractor could not assure the Department of Energy that payroll costs were processes accurately; and fraud, waste, or abuse of Department of Energy funds could go undetected. Our sample of 212 payroll transactions from a population of 66,000 in FY 1991 disclosed only two minor processing errors and no instances of fraud, waste or abuse.

Not Available

1992-02-07T23:59:59.000Z

438

Tunable Transmittance of Near-infrared and Visible Light in Reconstructed  

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

Tunable Transmittance of Near-infrared and Visible Light in Reconstructed Tunable Transmittance of Near-infrared and Visible Light in Reconstructed Nanocrystal-in-Glass Composite Films Thursday, October 31, 2013 The bonding arrangement in amorphous materials plays a dominant role in determining their electrochemical, optical and transport properties. However, it remains a challenge to manipulate amorphous structures in a controlled manner. Recently, scientists at the Molecular Foundry at Lawrence Berkeley National Laboratory (LBNL) developed synthetic protocols for incorporating well-defined nanocrystals into amorphous materials [1,2]. This "nanocrystal-in-glass" approach not only allows combining two functional components in one material, but it could also provide a handle, by virtue of the interfacial covalent bond, for manipulating the glass

439

Estimation of 1945 to 1957 food consumption. Hanford Environmental Dose Reconstruction Project  

Science Conference Proceedings (OSTI)

This report details the methods used and the results of the study on the estimated historic levels of food consumption by individuals in the Hanford Environmental Dose Reconstruction (HEDR) study area from 1945--1957. This period includes the time of highest releases from Hanford and is the period for which data are being collected in the Hanford Thyroid Disease Study. These estimates provide the food-consumption inputs for the HEDR database of individual diets. This database will be an input file in the Hanford Environmental Dose Reconstruction Integrated Code (HEDRIC) computer model that will be used to calculate the radiation dose. The report focuses on fresh milk, eggs, lettuce, and spinach. These foods were chosen because they have been found to be significant contributors to radiation dose based on the Technical Steering Panel dose decision level.

Anderson, D.M.; Bates, D.J.; Marsh, T.L.

1993-07-01T23:59:59.000Z

440

Uncertainty and Sensitivity Analyses Plan. Draft for Peer Review: Hanford Environmental Dose Reconstruction Project  

Science Conference Proceedings (OSTI)

Hanford Environmental Dose Reconstruction (HEDR) Project staff are developing mathematical models to be used to estimate the radiation dose that individuals may have received as a result of emissions since 1944 from the US Department of Energy`s (DOE) Hanford Site near Richland, Washington. An uncertainty and sensitivity analyses plan is essential to understand and interpret the predictions from these mathematical models. This is especially true in the case of the HEDR models where the values of many parameters are unknown. This plan gives a thorough documentation of the uncertainty and hierarchical sensitivity analysis methods recommended for use on all HEDR mathematical models. The documentation includes both technical definitions and examples. In addition, an extensive demonstration of the uncertainty and sensitivity analysis process is provided using actual results from the Hanford Environmental Dose Reconstruction Integrated Codes (HEDRIC). This demonstration shows how the approaches used in the recommended plan can be adapted for all dose predictions in the HEDR Project.

Simpson, J.C.; Ramsdell, J.V. Jr.

1993-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

Reconstruction of the refractive index from experimental backscattering data using a globally convergent inverse method  

E-Print Network (OSTI)

The problem to be studied in this work is within the context of coefficient identification problems for the wave equation. More precisely, we consider the problem of reconstruction of the refractive index (or equivalently, the dielectric constant) of an inhomogeneous medium using one backscattering boundary measurement. The goal of this paper is to analyze the performance of a globally convergent algorithm of Beilina and Klibanov on experimental data acquired in the Microwave Laboratory at University of North Carolina at Charlotte. The main challenge working with experimental data is the the huge misfit between these data and computationally simulated data. We present data pre-processing steps to make the former somehow look similar to the latter. Results of both non-blind and blind targets are shown indicating good reconstructions even for high contrasts between the targets and the background medium.

Nguyen Trung Thành; Larisa Beilina; Michael V. Klibanov; Michael A. Fiddy

2013-06-13T23:59:59.000Z

442

Estimation of 1945 to 1957 food consumption. Hanford Environmental Dose Reconstruction Project: Draft  

SciTech Connect

This report details the methods used and the results of the study on the estimated historic levels of food consumption by individuals in the Hanford Environmental Dose Reconstruction (HEDR) study area from 1945--1957. This period includes the time of highest releases from Hanford and is the period for which data are being collected in the Hanford Thyroid Disease Study. These estimates provide the food-consumption inputs for the HEDR database of individual diets. This database will be an input file in the Hanford Environmental Dose Reconstruction Integrated Code (HEDRIC) computer model that will be used to calculate the radiation dose. The report focuses on fresh milk, eggs, lettuce, and spinach. These foods were chosen because they have been found to be significant contributors to radiation dose based on the Technical Steering Panel dose decision level.

Anderson, D.M.; Bates, D.J.; Marsh, T.L.

1993-03-01T23:59:59.000Z

443

Electron Bunch Profile Reconstruction in the Few fs Regime using Coherent Smith-Purcell Radiation  

SciTech Connect

Advanced accelerators for fourth generation light sources based on high brightness linacs or laser-driven wakefield accelerators will operate with intense, highly relativistic electron bunches that are only a few fs long. Diagnostic techniques for the determination of temporal profile of such bunches are required to be non invasive, single shot, economic and with the required resolution in the fs regime. The use of a radiative process such as coherent Smith-Purcell radiation (SPR), is particularly promising with this respect. In this technique the beam is made to radiate a small amount of electromagnetic radiation and the temporal profile is reconstructed from the measured spectral distribution of the radiation. We summarise the advantages of SPR and present the design parameters and preliminary results of the experiments at the FACET facility at SLAC. We also discuss a new approach to the problem of the recovery of the 'missing phase', which is essential for the accurate reconstruction of the temporal bunch profile.

Bartolini, R.; /Oxford U., JAI /Diamond Light Source /SLAC; Clarke, C.; /SLAC; Delerue, N; /Oxford U., JAI /Diamond Light Source /SLAC; Doucas, G; Reichold, A; /Oxford U., JAI

2012-06-20T23:59:59.000Z

444

Reconstructing the past: architectural analysis of communal structures at the NAN Ranch ruin (LA2465), Grant County, New Mexico  

E-Print Network (OSTI)

Eleven seasons of field work at the NAN Ranch ruin (LA 2465), a multicomponent Mimbres site in Grant County, New Mexico, have allowed researchers to reconstruct a detailed sequence of architectural development stretching from the Three Circle phase (A.D. 750-900) to the Classic period (A.D. 1000-1130). During the course of excavation, investigators exposed a number of structures that are believed to have served in a communal or integrative capacity. This structure type served as the focus for this work. The purpose of this study was threefold: a) to present detailed descriptions of those structures believed to have served in a communal or integrative capacity; b) to trace the development of this structure type from its first known manifestations at the NAN Ranch ruin in the Three Circle phase to its latest forms at the end of the Classic period; and c) to analyze these structures as a distinct social space, both at the intramural and site level. Eleven structures are described in detail in this text. Six other spaces are also briefly described. Careful attention to detail has allowed this study to address whether previous judgements about the function of the rooms noted herein are in fact supportable. Scrutiny of architectural features also permitted a consideration of how well generally accepted indicators of communal space apply in the case of the NAN Ranch ruin. Finally, the structure provided by the architectural descriptions served as a foundation on which to base a number of inferences concerning population-guided socio-cultural change. Whereas architectural data suggest a shift away from a site-inclusive to a more privatized, lineage-based communal organization during the Late Pithouse/Classic period transition, the appearance of a new structure type at the end of the Classic period suggests that population pressures fostered social reorganization at the room block level around A.D. 1100.

Burden, Damon Andrew

2001-01-01T23:59:59.000Z

445

A convergent algorithm for the hybrid problem of reconstructing conductivity from minimal interior data  

E-Print Network (OSTI)

We consider the hybrid problem of reconstructing the isotropic electric conductivity of a body $\\Omega$ from interior Current Density Imaging data obtainable using MRI measurements. We only require knowledge of the magnitude $|J|$ of one current generated by a given voltage $f$ on the boundary $\\partial\\Omega$. As previously shown, the corresponding voltage potential u in $\\Omega$ is a minimizer of the weighted least gradient problem \\[u=\\hbox{argmin} \\{\\int_{\\Omega}a(x)|\

Moradifam, Amir; Timonov, Alexandre

2011-01-01T23:59:59.000Z

446

Signal Reconstruction in Module 0 of the End-Cap Electromagnetic Calorimeter and Presampler  

E-Print Network (OSTI)

This note describes signal reconstruction of the EMEC module 0. Two approaches have been tried to derive optimal filtering coefficients. The first one uses an electrical model of the signal path (detector-preamplifier-shaper) while the second approach is based on ad-hoc functions. The pros and the cons of each approach are discussed, and effects of the optimal filtering on noise and energy resolution are shown.

Barrillon, P; Hinz, L; Pralavorio, Pascal

2001-01-01T23:59:59.000Z

447

Reconstructing f(T)-gravity from the polytropic and different Chaplygin gas dark energy models  

E-Print Network (OSTI)

Motivated by a recent work of us [1], we reconstruct the different f(T)-gravity models corresponding to a set of dark energy scenarios containing the polytropic, the standard Chaplygin, the generalized Chaplygin and the modified Chaplygin gas models. We also derive the equation of state parameter of the selected f(T)-gravity models and obtain the necessary conditions for crossing the phantom-divide line.

Karami, K

2010-01-01T23:59:59.000Z

448

Cryptotomography: reconstructing 3D Fourier intensities from randomly oriented single-shot diffraction patterns  

Science Conference Proceedings (OSTI)

These 2000 single-shot diffraction patterns include were either background-scattering only or hits (background-scattering plus diffraction signal from sub-micron ellipsoidal particles at random, undetermined orientations). Candidate hits were identified by eye, and the remainder were presumed as background. 54 usable, background-subtracted hits in this set (procedure in referenced article) were used to reconstruct the 3D diffraction intensities of the average ellipsoidal particle.

2011-08-01T23:59:59.000Z

449

Cryptotomography: reconstructing 3D Fourier intensities from randomly oriented single-shot diffraction patterns  

DOE Data Explorer (OSTI)

These 2000 single-shot diffraction patterns include were either background-scattering only or hits (background-scattering plus diffraction signal from sub-micron ellipsoidal particles at random, undetermined orientations). Candidate hits were identified by eye, and the remainder were presumed as background. 54 usable, background-subtracted hits in this set (procedure in referenced article) were used to reconstruct the 3D diffraction intensities of the average ellipsoidal particle.

Loh, Ne-Te Duane

450

Hanford Environmental Dose Reconstruction Project. Quarterly report, June--August 1993  

SciTech Connect

The objective of the Hanford Environmental Dose Reconstruction (HEDR) Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed from release to impact on humans (dose estimates): Source Terms, Environmental Transport, Environmental Monitoring Data, Demography, Food Consumption, and Agriculture, and Environmental Pathways and Dose Estimates.

Cannon, S.D.; Finch, S.M. [comps.

1993-10-01T23:59:59.000Z

451

Neutron imaging with coded sources: new challenges and the implementation of a simultaneous iterative reconstruction technique  

Science Conference Proceedings (OSTI)

The limitations in neutron flux and resolution (L/D) of current neutron imaging systems can be addressed with a Coded Source Imaging system with magnification (xCSI). More precisely, the multiple sources in an xCSI system can exceed the flux of a single pinhole system for several orders of magnitude, while maintaining a higher L/D with the small sources. Moreover, designing for an xCSI system reduces noise from neutron scattering, because the object is placed away from the detector to achieve magnification. However, xCSI systems are adversely affected by correlated noise such as non-uniform illumination of the neutron source, incorrect sampling of the coded radiograph, misalignment of the coded masks, mask transparency, and the imperfection of the system Point Spread Function (PSF). We argue that a model-based reconstruction algorithm can overcome these problems and describe the implementation of a Simultaneous Iterative Reconstruction Technique algorithm for coded sources. Design pitfalls that preclude a satisfactory reconstruction are documented.

Santos-Villalobos, Hector J [ORNL; Bingham, Philip R [ORNL; Gregor, Jens [University of Tennessee, Knoxville (UTK)

2013-01-01T23:59:59.000Z

452

The effect of exit beam phase aberrations on parallel beam coherent x-ray reconstructions.  

Science Conference Proceedings (OSTI)

Diffraction artifacts from imperfect x-ray windows near the sample are an important consideration in the design of coherent x-ray diffraction measurements. In this study, we used simulated and experimental diffraction patterns in two and three dimensions to explore the effect of phase imperfections in a beryllium window (such as a void or inclusion) on the convergence behavior of phasing algorithms and on the ultimate reconstruction. A predictive relationship between beam wavelength, sample size, and window position was derived to explain the dependence of reconstruction quality on beryllium defect size. Defects corresponding to this prediction cause the most damage to the sample exit wave and induce signature error oscillations during phasing that can be used as a fingerprint of experimental x-ray window artifacts. The relationship between x-ray window imperfection size and coherent x-ray diffractive imaging reconstruction quality explored in this work can play an important role in designing high-resolution in situ coherent imaging instrumentation and will help interpret the phasing behavior of coherent diffraction measured in these in situ environments.

Hruszkewycz, S. O.; Harder, R.; Xiao, X.; Fuoss, P. H. (Materials Science Division); ( XSD)

2010-12-01T23:59:59.000Z

453

The effect of exit beam phase aberrations on parallel beam coherent x-ray reconstructions  

Science Conference Proceedings (OSTI)

Diffraction artifacts from imperfect x-ray windows near the sample are an important consideration in the design of coherent x-ray diffraction measurements. In this study, we used simulated and experimental diffraction patterns in two and three dimensions to explore the effect of phase imperfections in a beryllium window (such as a void or inclusion) on the convergence behavior of phasing algorithms and on the ultimate reconstruction. A predictive relationship between beam wavelength, sample size, and window position was derived to explain the dependence of reconstruction quality on beryllium defect size. Defects corresponding to this prediction cause the most damage to the sample exit wave and induce signature error oscillations during phasing that can be used as a fingerprint of experimental x-ray window artifacts. The relationship between x-ray window imperfection size and coherent x-ray diffractive imaging reconstruction quality explored in this work can play an important role in designing high-resolution in situ coherent imaging instrumentation and will help interpret the phasing behavior of coherent diffraction measured in these in situ environments.

Hruszkewycz, S. O.; Fuoss, P. H. [Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Harder, R.; Xiao, X. [X-Ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

2010-12-15T23:59:59.000Z

454

Compressed Beamforming Applied to B-Mode Ultrasound Imaging  

E-Print Network (OSTI)

Emerging sonography techniques often imply increasing in the number of transducer elements involved in the imaging process. Consequently, larger amounts of data must be acquired and processed by the beamformer. The significant growth in the amounts of data effects both machinery size and power consumption. Within the classical sampling framework, state of the art systems reduce processing rates by exploiting the bandpass bandwidth of the detected signals. It has been recently shown, that a much more significant sample-rate reduction may be obtained, by treating ultrasound signals within the Finite Rate of Innovation framework. These ideas follow the spirit of Xampling, which combines classic methods from sampling theory with recent developments in Compressed Sensing. Applying such low-rate sampling schemes to individual transducer elements, which detect energy reflected from biological tissues, is limited by the noisy nature of the signals. This often results in erroneous parameter extraction, bringing forwar...

Wagner, Noam; Feuer, Arie; Friedman, Zvi

2012-01-01T23:59:59.000Z

455

NEPAREVIEW LAN-ll-0003 2. CATEGORICAL EXCLUSION BEING APPLIED:  

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

NEPAREVIEW NEPAREVIEW LAN-ll-0003 2. CATEGORICAL EXCLUSION BEING APPLIED: 10 CFR 1021, Appendix B 6.8: Minor operational changes at an existing facility to minimize waste generation and for reuse of materials. These changes include, but are not limited to, adding filtration and recycle piping to allow reuse of machining oil, setting up a sorting area to improve process efficiency, and segregating two waste streams previously mingled and assigning new identification codes to the two resulting wastes. REGULATORY REQUIREMENTS IN 10 CFR 1021.410 (B): 1. The proposed action fits within a class of actions that is listed in Appendix B to Subpart D. For classes of actions listed in Appendix B, the following conditions are integral elements (Le., to fit within a class), the proposal must not:

456

Apply by March 31 for nontraditional student scholarship  

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

Nontraditional student scholarship Nontraditional student scholarship Apply by March 31 for nontraditional student scholarship The scholarship will provide funds to employees or students pursuing a certificate, a two-year-degree, or a baccalaureate degree at NNMC. March 16, 2011 Nontraditional student scholarships Nontraditional student scholarships Contact Communications Office (505) 667-7000 LOS ALAMOS, New Mexico, March 16, 2011-Employees of Los Alamos National Laboratory or students working at the Laboratory who have interrupted their education and now want to obtain a degree from Northern New Mexico College (NNMC) have a chance to receive a $750 scholarship. The Christopher Montalvo/LANL Scholarship, offered through the NNMC Foundation, will provide funds to Lab employees or students pursuing a

457

Applying Risk Communication to the Transportation of Radioactive Materials  

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

Spokesperson Training 6/3/2010 Spokesperson Training 6/3/2010 May 2010 1 National Transportation Stakeholder Forum Chicago, Illinois May 2010 y May 2010 Page 1 Applying Risk Communication Principles Presented by: Ron Edmond Oak Ridge Institute for Science and Education May 2010 Page 2 Spokesperson Training 6/3/2010 May 2010 2 ï‚ž Participants should expect to gain the following skills: following skills: ï‚¡ How to recognize how the stakeholders prefer to receive information ï‚¡ How to integrate risk communication principles into individual communication ï‚¡ How to recognize the importance of earning trust and credibility y ï‚¡ How to identify stakeholders ï‚¡ How to answer questions using a variety of templates designed to keep messages focused May 2010 Page 3 The Chinese word for crisis contains two

458

Saving Energy in Data Centers - Applying Best Practices  

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

Saving Energy in Data Centers Saving Energy in Data Centers Applying Best Practices Dale Sartor, PE Building Technologies Applications Team Lawrence Berkeley National Laboratory (LBNL) Data Center Energy * Data centers are energy intensive facilities - 10 to 100+ times more energy intensive than other commercial space - Server racks now designed for more than 25+ kW - Surging demand for data storage - Typical facility ~ 1MW, can be > 20 MW - 1.5% of US Electricity consumption in 2006 - Projected to double in next 5 years * Significant data center building boom - Power and cooling constraints in existing facilities - Utility distribution constraints World Data Center Electricity Use - 2000 and 2005 Source: Koomey 2008 Source: Koomey 2008 LBNL Feels the Pain! 0 5 10 15 20 25 30 35 40 MegaWatts

459

Nuclear safety as applied to space power reactor systems  

SciTech Connect

To develop a strategy for incorporating and demonstrating safety, it is necessary to enumerate the unique aspects of space power reactor systems from a safety standpoint. These features must be differentiated from terrestrial nuclear power plants so that our experience can be applied properly. Some ideas can then be developed on how safe designs can be achieved so that they are safe and perceived to be safe by the public. These ideas include operating only after achieving a stable orbit, developing an inherently safe design, ''designing'' in safety from the start and managing the system development (design) so that it is perceived safe. These and other ideas are explored further in this paper.

Cummings, G.E.

1987-01-01T23:59:59.000Z

460

GENERIC MODEL FOR MAGNETIC EXPLOSIONS APPLIED TO SOLAR FLARES  

Science Conference Proceedings (OSTI)

An accepted model for magnetospheric substorms is proposed as the basis for a generic model for magnetic explosions and is applied to solar flares. The model involves widely separated energy-release and particle-acceleration regions, with energy transported Alfvenically between them. On a global scale, these regions are coupled by a large-scale current that is set up during the explosion by redirection of pre-existing current associated with the stored magnetic energy. The explosion-related current is driven by an electromotive force (EMF) due to the changing magnetic flux enclosed by this current. The current path and the EMF are identified for an idealized quadrupolar model for a flare.

Melrose, D. B. [Sydney Institute for Astronomy, School of Physics, University of Sydney, NSW 2006 (Australia)

2012-04-10T23:59:59.000Z

Note: This page contains sample records for the topic "reconstruction cxs applied" 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

Desiccant grain applied to the storage of solar drying potential  

Science Conference Proceedings (OSTI)

Sorption storage of solar heat using a layer of wheat as the desiccant was analyzed by means of a deep-bed model. Intended to be applied to solar-assisted in-storage drying of agricultural bulk materials, the probability of the persistence of unfavorable weather periods was quantified statistically for Potsdam for the month of August, as an example. Simulation results demonstrate that a relative humidity of the drying air of 65% can be maintained day and night for weeks without combustion of fossil fuels. Using a simple strategy of control, periods with insufficient solar radiation can be bridged over. The desiccant grain is not endangered by mold growth as a matter of principle. Simple solar air heaters can be used to avoid economic losses due to overdrying and to reduce the danger of decay to a minimum even at unfavorable climatic conditions.

Ziegler, T.; Richter, I.G.; Pecenka, R.

1999-09-01T23:59:59.000Z

462

Dynamic Decision Making for Graphical Models Applied to Oil Exploration  

E-Print Network (OSTI)

We present a framework for sequential decision making in problems described by graphical models. The setting is given by dependent discrete random variables with associated costs or revenues. In our examples, the dependent variables are the potential outcomes (oil, gas or dry) when drilling a petroleum well. The goal is to develop an optimal selection strategy that incorporates a chosen utility function within an approximated dynamic programming scheme. We propose and compare different approximations, from simple heuristics to more complex iterative schemes, and we discuss their computational properties. We apply our strategies to oil exploration over multiple prospects modeled by a directed acyclic graph, and to a reservoir drilling decision problem modeled by a Markov random field. The results show that the suggested strategies clearly improve the simpler intuitive constructions, and this is useful when selecting exploration policies.

Martinelli, Gabriele; Hauge, Ragnar

2012-01-01T23:59:59.000Z

463

Distributed control applied to combined electricity and natural gas infrastructures  

E-Print Network (OSTI)

Abstract — The optimization of combined electricity and natural gas systems is addressed in this paper. The two networks are connected via energy hubs. Using the energy hub concept, the interactions between the different infrastructures can be analyzed. A system consisting of several interconnected hubs forms a distributed power generation structure where each hub is controlled by its respective control agent. Recently, a distributed control method has been applied to such a system. The overall optimization problem including the entire system is decomposed into subproblems according to the control agents. In this paper, a parallel and serial version of that method is discussed. Simulation results are obtained through experiments on a three-hub benchmark system. I.

Michèle Arnold; Rudy R. Negenborn; Göran Andersson; Bart De Schutter

2008-01-01T23:59:59.000Z

464

Applied wind energy research at the National Wind Technology Center  

DOE Green Energy (OSTI)

Applied research activities at the National Wind Technology Center are divided into several technical disciplines. Not surprisingly, these engineering and science disciplines highlight the technology similarities between aircraft and wind turbine design requirements. More often than not, wind turbines are assumed to be a subset of the much larger and more comprehensive list of well understood aerospace engineering accomplishments and it is difficult for the general public to understand the poor performance history of wind turbines in sustained operation. Often overlooked are the severe environmental conditions and operational demands placed on turbine designs which define unique requirements beyond typical aerospace applications. It is the role of the National Wind Technology Center to investigate and quantify the underlying physical phenomena which make the wind turbine design problem unique and to provide the technology advancements necessary to overcome current operational limitations. This paper provides a brief overview of research areas involved with the design of wind turbines.

Robinson, M C; Tu, P

1996-06-01T23:59:59.000Z

465

AN ADVANCED TOOL FOR APPLIED INTEGRATED SAFETY MANAGEMENT  

SciTech Connect

WESKEM, LLC's Environmental, Safety and Health (ES&H) Department had previously assessed that a lack of consistency, poor communication and using antiquated communication tools could result in varying operating practices, as well as a failure to capture and disseminate appropriate Integrated Safety Management (ISM) information. To address these issues, the ES&H Department established an Activity Hazard Review (AHR)/Activity Hazard Analysis (AHA) process for systematically identifying, assessing, and controlling hazards associated with project work activities during work planning and execution. Depending on the scope of a project, information from field walkdowns and table-top meetings are collected on an AHR form. The AHA then documents the potential failure and consequence scenarios for a particular hazard. Also, the AHA recommends whether the type of mitigation appears appropriate or whether additional controls should be implemented. Since the application is web based, the information is captured into a single system and organized according to the >200 work activities already recorded in the database. Using the streamlined AHA method improved cycle time from over four hours to an average of one hour, allowing more time to analyze unique hazards and develop appropriate controls. Also, the enhanced configuration control created a readily available AHA library to research and utilize along with standardizing hazard analysis and control selection across four separate work sites located in Kentucky and Tennessee. The AHR/AHA system provides an applied example of how the ISM concept evolved into a standardized field-deployed tool yielding considerable efficiency gains in project planning and resource utilization. Employee safety is preserved through detailed planning that now requires only a portion of the time previously necessary. The available resources can then be applied to implementing appropriate engineering, administrative and personal protective equipment controls in the field.

Potts, T. Todd; Hylko, James M.; Douglas, Terence A.

2003-02-27T23:59:59.000Z

466

Radiological impact of phosphogypsum applied to soils under bahiagrass pasture  

SciTech Connect

Phosphogypsum (PG), a by-product in the manufacture of phosphoric acid, is primarily gypsum. The USEPA regulates the removal of PG from stacks because it contains {sup 226}Ra. Measures to quantify the transfer of radioactivity in PG to the agricultural environment are needed. The objective of the study was to collect data needed for assessment of the radiological impacts of PG applied to two Florida soils. Field experiments using 0,10, and 20 mg PG ha{sup {minus}1} were conducted for 2 yr at the University of Florida RCREC, Ona, FL. PG-attributable levels of {sup 226}Ra, {sup 210}Pb, and {sup 210}Po were observed in the top 5-cm layer of the soils. Surface {sup 222}Rn flux increased by 0.067 to 0.078 mBq m{sup {minus}2} s{sup {minus}1} per Mg PG ha{sup {minus}1}. Radionuclide concentrations in regrowth forages increased at one site where the first post-treatment rainfall did not occur until 20 d after PG application. In mature forages, radionuclide levels generally increased with PG in both soils. No effects on radionuclide levels in subsurface water down to 90 cm and only slight effects on gamma radiation and on airborne {sup 222}Rn measured 1 m from the ground were noted. The linear regression slope for a radiological parameter normalized with respect to the pertinent radionuclide applied per m{sup 2} per Mg PG ha{sup {minus}1} is proposed as the transfer factor (TF) of that radionuclide in PG to the agricultural medium in terms of that parameter. The TF permits the calculation of the potential effect on certain radiological parameters of PGs containing different radionuclide concentrations from the one used in this study.

Alcordo, I.S.; Rechcigl, J.E.; Roessler, C.E.; Littell, R.C.

1999-10-01T23:59:59.000Z

467

Explicit reconstruction of line-currents and their positions in a two-dimensional parallel conductor structure  

E-Print Network (OSTI)

The magnetic inverse source problem of reconstructing the positions and currents of very long parallel conductors is considered in a two-dimensional situation, with applications to power line measurements. The input data is the magnetic field on a contour surrounding the conductors to be reconstructed. Using a scalar-vector Green identity, an explicit reconstruction algorithm is derived. The numerical implementation of the algorithm is described and simulation results are presented, demonstrating the influences from numerical errors and uncertainties in measurement data. The algorithm can handle an arbitrary number of conductors, but stability problems associated with the illposedness accelerate with increasing number of conductors. Mathematically, the Green identity approach removes the influence of external disturbances and thus have potential usefulness in current reconstruction for determining optimal sensor positions and how to process measurement data.

Martin Norgren

2013-02-26T23:59:59.000Z

468

A Pseudoproxy Evaluation of the CCA and RegEM Methods for Reconstructing Climate Fields of the Last Millennium  

Science Conference Proceedings (OSTI)

Canonical correlation analysis (CCA) is evaluated for paleoclimate field reconstructions in the context of pseudoproxy experiments assembled from the millennial integration (850–1999 c.e.) of the National Center for Atmospheric Research Community ...

Jason E. Smerdon; Alexey Kaplan; Diana Chang; Michael N. Evans

2010-09-01T23:59:59.000Z

469

Megadroughts in Southwestern North America in Millennium-Length ECHO-G Simulations and their Comparison to Proxy Drought Reconstructions  

Science Conference Proceedings (OSTI)

Simulated hydroclimate variability in millennium-length forced transient and control simulations from the ECHO-G coupled Atmosphere Ocean General Circulation Model (AOGCM) is analyzed and compared to a thousand years of reconstructed Palmer ...

Sloan Coats; Jason E. Smerdon; Richard Seager; Benjamin I. Cook; J. F. González-Rouco

470

Proxy-Based Northern Hemisphere Surface Temperature Reconstructions: Sensitivity to Method, Predictor Network, Target Season, and Target Domain  

Science Conference Proceedings (OSTI)

Results are presented from a set of experiments designed to investigate factors that may influence proxy-based reconstructions of large-scale temperature patterns in past centuries. The factors investigated include 1) the method used to ...

S. Rutherford; M. E. Mann; T. J. Osborn; K. R. Briffa; P?D. Jones; R. S. Bradley; M. K. Hughes

2005-07-01T23:59:59.000Z

471

Scots Pine (pinus sylvestris L.) on Shingle Fields: A Dendrochronologic Reconstruction of Early Summer Precipitation in Mideast Sweden  

Science Conference Proceedings (OSTI)

Scots pine (Pinus sylvestris L.) trees growing on shingle fields offer a unique possibility to reconstruct precipitation and study climate variability in the fairly humid eastern part of central Sweden. Tree-ring characteristics were compared ...

Karin Jönsson; Christer Nilsson

2009-09-01T23:59:59.000Z

472

Pollen-Based Quantitative Reconstruction of Holocene Climate Changes in the Daihai Lake Area, Inner Mongolia, China  

Science Conference Proceedings (OSTI)

Vegetation around the Daihai Lake, northern China, is very sensitive to climate changes. In this paper, pollen-based quantitative climate reconstructions using three methods [weighted averaging partial least squares method (WAPLS), modern analog ...

Qinghai Xu; Jule Xiao; Yuecong Li; Fang Tian; Takeshi Nakagawa

2010-06-01T23:59:59.000Z

473

A Pseudoproxy Evaluation of Bayesian Hierarchical Modeling and Canonical Correlation Analysis for Climate Field Reconstructions over Europe  

Science Conference Proceedings (OSTI)

A pseudoproxy comparison is presented for two statistical methods used to derive annual climate field reconstructions (CFRs) for Europe. The employed methods use the canonical correlation analysis (CCA) procedure presented by Smerdon et al. and ...

Johannes P. Werner; Juerg Luterbacher; Jason E. Smerdon

2013-02-01T23:59:59.000Z

474

Talking Peace: A Population-Based Survey on Attitudes About Security, Dispute Resolution, and Post-Conflict Reconstruction in Liberia  

E-Print Network (OSTI)

68 Table 28: Truth and theReconstruction in Liberia Table 28: Truth and the TRC GrandTruth and the TRC . 69 Elections.. 73 Authors and Acknowledgment.. 75 Table

2011-01-01T23:59:59.000Z

475

A method of dose reconstruction for moving targets compatible with dynamic treatments  

SciTech Connect

Purpose: To develop a method that allows a commercial treatment planning system (TPS) to perform accurate dose reconstruction for rigidly moving targets and to validate the method in phantom measurements for a range of treatments including intensity modulated radiation therapy (IMRT), volumetric arc therapy (VMAT), and dynamic multileaf collimator (DMLC) tracking. Methods: An in-house computer program was developed to manipulate Dicom treatment plans exported from a TPS (Eclipse, Varian Medical Systems) such that target motion during treatment delivery was incorporated into the plans. For each treatment, a motion including plan was generated by dividing the intratreatment target motion into 1 mm position bins and construct sub-beams that represented the parts of the treatment that were delivered, while the target was located within each position bin. For each sub-beam, the target shift was modeled by a corresponding isocenter shift. The motion incorporating Dicom plans were reimported into the TPS, where dose calculation resulted in motion including target dose distributions. For experimental validation of the dose reconstruction a thorax phantom with a moveable lung equivalent rod with a tumor insert of solid water was first CT scanned. The tumor insert was delineated as a gross tumor volume (GTV), and a planning target volume (PTV) was formed by adding margins. A conformal plan, two IMRT plans (step-and-shoot and sliding windows), and a VMAT plan were generated giving minimum target doses of 95% (GTV) and 67% (PTV) of the prescription dose (3 Gy). Two conformal fields with MLC leaves perpendicular and parallel to the tumor motion, respectively, were generated for DMLC tracking. All treatment plans were delivered to the thorax phantom without tumor motion and with a sinusoidal tumor motion. The two conformal fields were delivered with and without portal image guided DMLC tracking based on an embedded gold marker. The target dose distribution was measured with a radiochromic film in the moving rod and compared with the reconstructed doses using gamma tests. Results: Considerable interplay effects between machine motion and target motion were observed for the treatments without tracking. For nontracking experiments, the mean 2 mm/2% gamma pass rate over all investigated scenarios was 99.6% between calculated and measured doses. For tracking experiments, the mean gamma pass rate was 99.4%. Conclusions: A method for accurate dose reconstruction for moving targets with dynamic treatments was developed and experimentally validated in a variety of delivery scenarios. The method is suitable for integration into TPSs, e.g., for reconstruction of the dose delivered to moving tumors or calculation of target doses delivered with DMLC tracking.

Rugaard Poulsen, Per; Lykkegaard Schmidt, Mai; Keall, Paul; Schjodt Worm, Esben; Fledelius, Walther; Hoffmann, Lone [Department of Oncology, Aarhus University Hospital, Norrebrogade 44, 8000 Aarhus C, Institute of Clinical Medicine, Aarhus University, Brendstrupgaardsvej 100, 8200 Aarhus N (Denmark); Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, 8000 Aarhus C (Denmark); Radiation Physics Laboratory, Sydney Medical School, University of Sydney, NSW 2006 (Australia); Department of Oncology, Aarhus University Hospital, Norrebrogade 44, 8000 Aarhus C, Department of Medical Physics, Aarhus University Hospital, Norrebrogade 44, 8000 Aarhus C (Denmark); Department of Oncology, Aarhus University Hospital, Norrebrogade 44, 8000 Aarhus C (Denmark); Department of Medical Physics, Aarhus University Hospital, Norrebrogade 44, 8000 Aarhus C (Denmark)

2012-10-15T23:59:59.000Z

476

CX-000147: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination Galloway's Rooftop Heating, Ventilating, and Air Conditioning Unit Replacement, Boiler Replacement, Lighting Upgrade CX(s) Applied:...

477

CX-006453: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination CX-006453: Categorical Exclusion Determination Geothermal Incentive Program - Matunaliec Residence geothermal (Deercliff Road) CX(s) Applied:...

478

Clinical evaluations of an amplitude-based binning algorithm for 4DCT reconstruction in radiation therapy  

SciTech Connect

Purpose: Phase-binning algorithms are commonly utilized in 4DCT image reconstruction for characterization of tumor or organ shape and respiration motion, but breathing irregularities occurring during 4DCT acquisition can cause considerable image distortions. Recently, amplitude-binning algorithms have been evaluated as a potential improvement to phase-binning algorithms for 4DCT image reconstruction. The purpose of this study was to evaluate the performance of the first commercially available on-line retrospective amplitude-binning algorithm for comparison to the traditional phase-binning algorithm. Methods: Both phantom and clinical data were used for evaluation. A phantom of known geometry was mounted on a 4D motion platform programmed with seven respiratory waves (two computer generated and five patient trajectories) and scanned with a Philips Brilliance Big bore 16-slice CT simulator. 4DCT images were reconstructed using commercial amplitude- and phase-binning algorithms. Image quality of the amplitude- and phase-binned image sets was compared by evaluation of shape and volume distortions in reconstructed images. Clinical evaluations were performed on 64 4DCT patient image sets in a blinded review process. The amplitude- and phase-binned 4DCT maximum intensity projection (MIP) images were further evaluated for 28 stereotactic body radiation therapy (SBRT) cases of total 64 cases. A preliminary investigation of the effects of respiratory amplitude and pattern irregularities on motion artifact severity was conducted. Results: The phantom experiments illustrated that, as expected, maximum inhalation occurred at the 0% amplitude and maximum exhalation occurred at the 50% amplitude of the amplitude-binned 4DCT image sets. The phantom shape distortions were more severe in the images reconstructed from the phase-binning algorithm. In the clinical study, compared to the phase-binning algorithm, the amplitude-binning algorithm yielded fewer or less severe motion artifacts in 37.5% of the cases (24/64), comparable artifacts in 54.7% of the cases (35/64), and slightly greater artifacts in 7.8% of the cases (5/64). Evaluation of SBRT cases demonstrated that the reconstructed tumor sizes and locations were comparable in 96% (1/28) of the MIP image pairs generated from both amplitude- and phase-binning algorithms. In this case the amplitude-binned image set rendered a smaller tumor size, which was likely due to very shallow respiratory amplitudes occurring over several breathing cycles. Conclusions: Overall, the amplitude-binning algorithm for 4DCT reconstruction reduced the severity of tumor distortion and image artifacts compared to the phase-binning algorithm. However, the full range of motion may not be characterized using amplitude-binning algorithms. Despite superior performance, amplitude binning can still be susceptible to motion artifacts caused by large variations in amplitude of respiratory waves.

Li Hua; Noel, Camille; Garcia-Ramirez, Jose; Low, Daniel; Bradley, Jeffrey; Robinson, Clifford; Mutic, Sasa; Parikh, Parag [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri 63110 (United States); Department of Radiation Oncology, University of California Los Angeles, Los Angeles, California 90095 (United States); Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri 63110 (United States)

2012-02-15T23:59:59.000Z

479

Total Risk Approach in Applying PRA to Criticality Safety  

SciTech Connect

As nuclear industry continues marching from an expert-base support to more procedure-base support, it is important to revisit the total risk concept to criticality safety. A key objective of criticality safety is to minimize total criticality accident risk. The purpose of this paper is to assess key constituents of total risk concept pertaining to criticality safety from an operations support perspective and to suggest a risk-informed means of utilizing criticality safety resources for minimizing total risk. A PRA methodology was used to assist this assessment. The criticality accident history was assessed to provide a framework for our evaluation. In supporting operations, the work of criticality safety engineers ranges from knowing the scope and configurations of a proposed operation, performing criticality hazards assessment to derive effective controls, assisting in training operators, response to floor questions, surveillance to ensure implementation of criticality controls, and response to criticality mishaps. In a compliance environment, the resource of criticality safety engineers is increasingly being directed towards tedious documentation effort to meet some regulatory requirements to the effect of weakening the floor support for criticality safety. By applying a fault tree model to identify the major contributors of criticality accidents, a total risk picture is obtained to address relative merits of various actions. Overall, human failure is the key culprit in causing criticality accidents. Factors such as failure to follow procedures, lacks of training, lack of expert support at the floor level etc. are main contributors. Other causes may include lack of effective criticality controls such as inadequate criticality safety evaluation. Not all of the causes are equally important in contributing to criticality mishaps. Applying the limited resources to strengthen the weak links would reduce risk more than continuing emphasis on the strong links of criticality safety support. For example, some compliance failures such as lack of detailed documentation may not be as relevant as the lack of floor support in answering operator's questions during operations. Misuse of resources in reducing lesser causes rather than on major causes of criticality accidents is not risk free without severe consequences. A regulatory mandate without due consideration of total risk may have its opposite effect of increasing the total risk of an accident. A lesson is to be learned here. For regulatory standard/guide development, use of ANS/ANSI standard process, which provides the pedigree of consensus participation, is recommended.

Huang, S T

2005-03-24T23:59:59.000Z

480

Page not found | Department of Energy  

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

51 - 4560 of 28,905 results. 51 - 4560 of 28,905 results. Download CX-010829: Categorical Exclusion Determination Coil Tubing (CT) Drilling and Intervention System Using Cost-Effective Vessels (10121-4505-01) CX(s) Applied: A9 Date: 07/30/2013 Location(s): Mexico Offices(s): National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-010829-categorical-exclusion-determination Download CX-010892: Categorical Exclusion Determination "Clean Start" - Development of a National Liquid Propane (Autogas) Refueling Network CX(s) Applied: B5.22 Date: 06/28/2013 Location(s): Texas Offices(s): National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-010892-categorical-exclusion-determination Download CX-010893: Categorical Exclusion Determination Modification to Demolish Building 900A and Reconstruct Building 900 Project

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481

Page not found | Department of Energy  

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

31 - 9940 of 29,416 results. 31 - 9940 of 29,416 results. Download CX-010893: Categorical Exclusion Determination Modification to Demolish Building 900A and Reconstruct Building 900 Project CX(s) Applied: B1.3, B1.15 Date: 06/28/2013 Location(s): Pennsylvania Offices(s): National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-010893-categorical-exclusion-determination Download CX-010894: Categorical Exclusion Determination Graphene-Based Composite Sensor for Energy Applications CX(s) Applied: B3.6 Date: 06/27/2013 Location(s): West Virginia Offices(s): National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-010894-categorical-exclusion-determination Download CX-010895: Categorical Exclusion Determination Development and Industrialization of Indium Gallium Nitride/Gallium Nitride

482

Page not found | Department of Energy  

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

81 - 13590 of 26,764 results. 81 - 13590 of 26,764 results. Download CX-010643: Categorical Exclusion Determination Minnesota E85 Fueling Network Expansion Project CX(s) Applied: B5.22 Date: 06/27/2013 Location(s): Minnesota Offices(s): National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-010643-categorical-exclusion-determination Download CX-010637: Categorical Exclusion Determination "Clean Start" - Development of a National Liquid Propane (Autogas) Refueling Network CX(s) Applied: B5.22 Date: 06/28/2013 Location(s): Texas Offices(s): National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-010637-categorical-exclusion-determination Download CX-010638: Categorical Exclusion Determination Modification to Demolish Building 900A and Reconstruct Building 900 Project

483

Funded Projects NEPA Does Not Apply Categorical Exclusions  

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

June 30, 2010 June 30, 2010 Page 1 # of ARRA Funded Projects NEPA Does Not Apply Categorical Exclusions (CE) CE Pending CE Done Environmental Assessments (EA) EA Pending EA Done Environmental Impact Statements (EIS) EIS Pending EIS Done All NEPA Actions All Withdrawn Actions All Pending NEPA Actions All Completed NEPA Actions OVERALL TOTALS: 215,159 4,240 175,498 821 174,677 9,808 749 9,059 829 36 793 186,135 1,403 1,606 184,529 Department of Agriculture (USDA): 132,570 254 93,586 37 93,549 1,303 3 1,300 150 0 150 95,039 110 40 94,999 Agricultural Research Service (ARS) 41 2 38 0 38 1 0 1 0 0 0 39 0 0 39 Farm Service Agency (FSA) 38,592 0 4 0 4 0 0 0 0 0 0 4 0 0 4 Food and Nutrition Service (FNS) 251 0 4 0 4 0 0 0 0 0 0 4 0 0 4 Foreign Agricultural Service (FAS) 3 0 3 0 3 0 0 0 0 0 0 3 0 0 3 U.S. Forest Service (USFS) 705 252 1,408 2 1,406 533 1 532 121 0 121 2,062 8 3 2,059 Natural Resources Conservation Service (NRCS)

484

Funded Projects NEPA Does Not Apply Categorical Exclusions  

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

December 31, 2010 December 31, 2010 Page 1 # of ARRA Funded Projects NEPA Does Not Apply Categorical Exclusions (CE) CE Pending CE Done Environmental Assessments (EA) EA Pending EA Done Environmental Impact Statements (EIS) EIS Pending EIS Done All NEPA Actions All Withdrawn Actions All Pending NEPA Actions All Completed NEPA Actions OVERALL TOTALS: 272,037 4,289 181,061 190 180,871 6,978 362 6,616 870 35 835 188,909 1,674 589 188,322 Department of Agriculture (USDA): 184,065 254 96,907 9 96,898 1,508 0 1,508 150 0 150 98,565 254 9 98,556 Agricultural Research Service (ARS) 41 2 38 0 38 1 0 1 0 0 0 39 0 0 39 Farm Service Agency (FSA) 86,564 0 4 0 4 0 0 0 0 0 0 4 0 0 4 Food and Nutrition Service (FNS) 251 0 4 0 4 0 0 0 0 0 0 4 0 0 4 Foreign Agricultural Service (FAS) 3 0 4 0 4 0 0 0 0 0 0 4 0 0 4 U.S. Forest Service (USFS) 705 252 1,408 0 1,408 533 0 533 121 0 121 2,062 8 0 2,062 Natural Resources Conservation Service (NRCS)

485

A Hygrothermal Risk Analysis Applied to Residential Unvented Attics  

SciTech Connect

Aresidential building, constructed with an unvented attic, is acommonroof assembly in the United States.The expected hygrothermal performance and service life of the roof are difficult to estimate due to a number of varying parameters.Typical parameters expected to vary are the climate, direction, and slope of the roof as well as the radiation properties of the surface material. Furthermore, influential parameters are indoor moisture excess, air leakages through the attic floor, and leakages from air-handling unit and ventilation ducts. In addition, the type of building materials such as the insulation material and closed or open cell spray polyurethane foam will influence the future performance of the roof. A development of a simulation model of the roof assembly will enable a risk and sensitivity analysis, in which the most important varying parameters on the hygrothermal performance can be determined. The model is designed to perform probabilistic simulations using mathematical and hygrothermal calculation tools. The varying input parameters can be chosen from existing measurements, simulations, or standards. An analysis is applied to determine the risk of consequences, such as mold growth, rot, or energy demand of the HVAC unit. Furthermore, the future performance of the roof can be simulated in different climates to facilitate the design of an efficient and reliable roof construction with the most suitable technical solution and to determine the most appropriate building materials for a given climate

Pallin, Simon B [ORNL] [ORNL; Kehrer, Manfred [ORNL] [ORNL

2013-01-01T23:59:59.000Z

486

Applying a Modified Triad Approach to Investigate Wastewater lines  

Science Conference Proceedings (OSTI)

Approximately 20 miles of wastewater lines are below grade at an active military Base. This piping network feeds or fed domestic or industrial wastewater treatment plants on the Base. Past wastewater line investigations indicated potential contaminant releases to soil and groundwater. Further environmental assessment was recommended to characterize the lines because of possible releases. A Remedial Investigation (RI) using random sampling or use of sampling points spaced at predetermined distances along the entire length of the wastewater lines, however, would be inefficient and cost prohibitive. To accomplish RI goals efficiently and within budget, a modified Triad approach was used to design a defensible sampling and analysis plan and perform the investigation. The RI task was successfully executed and resulted in a reduced fieldwork schedule, and sampling and analytical costs. Results indicated that no major releases occurred at the biased sampling points. It was reasonably extrapolated that since releases did not occur at the most likely locations, then the entire length of a particular wastewater line segment was unlikely to have contaminated soil or groundwater and was recommended for no further action. A determination of no further action was recommended for the majority of the waste lines after completing the investigation. The modified Triad approach was successful and a similar approach could be applied to investigate wastewater lines on other United States Department of Defense or Department of Energy facilities. (authors)

Pawlowicz, R.; Urizar, L. [Bechtel National, Inc., 1230 Columbia St., Suite 400, San Diego, CA 92101 (United States); Blanchard, S. [Brown and Caldwell, 9665 Chesapeake Drive, Suite 201, San Diego, CA 92123 (United States); Jacobsen, K. [Naval Facilities Engineering Command, Southwest 1220 Pacific Highway, San Diego, CA 92132 (United States); Scholfield, J. [EarthTech, 841 Bishop St., Suite 500, Honolulu, HI 96813 (United States)

2006-07-01T23:59:59.000Z

487

Predicting plant available nitrogen in land-applied biosolids  

Science Conference Proceedings (OSTI)

The rate at which biosolids (municipal sewage sludge) may be applied to land is dependent on factors including concentrations of metals, pathogens, toxic organic compounds, and nutrients. Where other properties are not limiting, land application rates are often based on matching crop N needs with the plant available N (PAN). The objectives of this study were to quantify biosolids PAN under field conditions and to propose methods including computer simulation to estimate biosolids PAN in a land application program. Six biosolids were evaluated over a 2-yr period. Laboratory incubations were used to obtain decomposition kinetics. Field studies provided a relationship between inorganic fertilizer N rate and sorghum sudangrass [Sorghum bicolor (L.) Moench] tissue N concentration, which was used to determine biosolids PAN in a Captina silt loam soil. Biosolids PAN released during the field experiment was linearly related to biosolids C/N ratio, organic N, or total N. Computer model predictions of PAN in the field were also linearly related to field estimates of biosolids PAN. Decay series obtained using the computer model, average biosolids decomposition kinetics, and average application site weather were very similar to decay series obtained using the computer model, actual weather, and kinetic data. Either decay series and routine analytical data for biosolids are proposed to estimate PAN for a given situation. Use of the computer model and weather data makes the approach site-specific, while analytical data for a specific biosolids makes the approach biosolids-specific.

Gilmour, J.T.; Skinner, V.

1999-08-01T23:59:59.000Z

488

Retrocommissioning Case Study - Applying Building Selection Criteria for Maximum Results  

E-Print Network (OSTI)

Commissioning of existing buildings, or “retrocommissioning” is a systematic process to identify operational and maintenance (O&M) improvements that optimize building performance and ensure that building systems function together efficiently and effectively (Haasl, Sharp 1999). This paper presents a case study of a utility-funded retrocommissioning evaluation on a 125,000 SF office facility in La Mesa, California. The commissioning process consisted of site visits, interviews with facility staff, data collection and analysis, recommendation of energy conservation measures, and verification of savings. The study identified 13 deficiencies and recommended a suite of three O&M measures, one capital improvement measure and five other measures. The measures selected and implemented by the owner resulted in annual projected savings of 238,000 kWh (9.9%) and utility cost savings of $20,000 (6.9%)1, with a simple payback of 0.7 years. The project also demonstrated the value of applying rigorous building selection criteria to obtain cost-effective results. This paper profiles the project and discusses lesson learned.

Luskay, L.; Haasl, T.; Irvine, L.; Frey, D.

2002-01-01T23:59:59.000Z

489

1) Apply directly to the department in which you want to pursue a PhD  

E-Print Network (OSTI)

1) Apply directly to the department in which you want to pursue apply directly to the I- WATER program. Download and complete our application

490

An Adaptive B-Spline Method for Low-order Image Reconstruction Problems - Final Report - 09/24/1997 - 09/24/2000  

SciTech Connect

A common problem in signal processing is to estimate the structure of an object from noisy measurements linearly related to the desired image. These problems are broadly known as inverse problems. A key feature which complicates the solution to such problems is their ill-posedness. That is, small perturbations in the data arising e.g. from noise can and do lead to severe, non-physical artifacts in the recovered image. The process of stabilizing these problems is known as regularization of which Tikhonov regularization is one of the most common. While this approach leads to a simple linear least squares problem to solve for generating the reconstruction, it has the unfortunate side effect of producing smooth images thereby obscuring important features such as edges. Therefore, over the past decade there has been much work in the development of edge-preserving regularizers. This technique leads to image estimates in which the important features are retained, but computationally the y require the solution of a nonlinear least squares problem, a daunting task in many practical multi-dimensional applications. In this thesis we explore low-order models for reducing the complexity of the re-construction process. Specifically, B-Splines are used to approximate the object. If a ''proper'' collection B-Splines are chosen that the object can be efficiently represented using a few basis functions, the dimensionality of the underlying problem will be significantly decreased. Consequently, an optimum distribution of splines needs to be determined. Here, an adaptive refining and pruning algorithm is developed to solve the problem. The refining part is based on curvature information, in which the intuition is that a relatively dense set of fine scale basis elements should cluster near regions of high curvature while a spares collection of basis vectors are required to adequately represent the object over spatially smooth areas. The pruning part is a greedy search algorithm to find and delete redundant knots based on the estimation of a weight associated with each basis vector. The overall algorithm iterates by inserting and deleting knots and end up with much fewer knots than pixels to represent the object, while the estimation error is within a certain tolerance. Thus, an efficient reconstruction can be obtained which significantly reduces the complexity of the problem. In this thesis, the adaptive B-Spline method is applied to a cross-well tomography problem. The problem comes from the application of finding underground pollution plumes. Cross-well tomography method is applied by placing arrays of electromagnetic transmitters and receivers along the boundaries of the interested region. By utilizing inverse scattering method, a linear inverse model is set up and furthermore the adaptive B-Spline method described above is applied. The simulation results show that the B-Spline method reduces the dimensional complexity by 90%, compared with that o f a pixel-based method, and decreases time complexity by 50% without significantly degrading the estimation.

Li, Xin; Miller, Eric L.; Rappaport, Carey; Silevich, Michael

2000-04-11T23:59:59.000Z

491

Applying Human Factors during the SIS Life Cycle  

SciTech Connect

Safety Instrumented Systems (SIS) are widely used in U.S. Department of Energy's (DOE) nonreactor nuclear facilities for safety-critical applications. Although use of the SIS technology and computer-based digital controls, can improve performance and safety, it potentially introduces additional complexities, such as failure modes that are not readily detectable. Either automated actions or manual (operator) actions may be required to complete the safety instrumented function to place the process in a safe state or mitigate a hazard in response to an alarm or indication. DOE will issue a new standard, Application of Safety Instrumented Systems Used at DOE Nonreactor Nuclear Facilities, to provide guidance for the design, procurement, installation, testing, maintenance, operation, and quality assurance of SIS used in safety significant functions at DOE nonreactor nuclear facilities. The DOE standard focuses on utilizing the process industry consensus standard, American National Standards Institute/ International Society of Automation (ANSI/ISA) 84.00.01, Functional Safety: Safety Instrumented Systems for the Process Industry Sector, to support reliable SIS design throughout the DOE complex. SIS design must take into account human-machine interfaces and their limitations and follow good human factors engineering (HFE) practices. HFE encompasses many diverse areas (e.g., information display, user-system interaction, alarm management, operator response, control room design, and system maintainability), which affect all aspects of system development and modification. This paper presents how the HFE processes and principles apply throughout the SIS life cycle to support the design and use of SIS at DOE nonreactor nuclear facilities.

Avery, K.

2010-05-05T23:59:59.000Z

492

Sensitivity and uncertainty analysis applied to the JHR reactivity prediction  

SciTech Connect

The on-going AMMON program in EOLE reactor at CEA Cadarache (France) provides experimental results to qualify the HORUS-3D/N neutronics calculation scheme used for the design and safety studies of the new Material Testing Jules Horowitz Reactor (JHR). This paper presents the determination of technological and nuclear data uncertainties on the core reactivity and the propagation of the latter from the AMMON experiment to JHR. The technological uncertainty propagation was performed with a direct perturbation methodology using the 3D French stochastic code TRIPOLI4 and a statistical methodology using the 2D French deterministic code APOLLO2-MOC which leads to a value of 289 pcm (1{sigma}). The Nuclear Data uncertainty propagation relies on a sensitivity study on the main isotopes and the use of a retroactive marginalization method applied to the JEFF 3.1.1 {sup 27}Al evaluation in order to obtain a realistic multi-group covariance matrix associated with the considered evaluation. This nuclear data uncertainty propagation leads to a K{sub eff} uncertainty of 624 pcm for the JHR core and 684 pcm for the AMMON reference configuration core. Finally, transposition and reduction of the prior uncertainty were made using the Representativity method which demonstrates the similarity of the AMMON experiment with JHR (the representativity factor is 0.95). The final impact of JEFF 3.1.1 nuclear data on the Begin Of Life (BOL) JHR reactivity calculated by the HORUS-3D/N V4.0 is a bias of +216 pcm with an associated posterior uncertainty of 304 pcm (1{sigma}). (authors)

Leray, O.; Vaglio-Gaudard, C.; Hudelot, J. P.; Santamarina, A.; Noguere, G. [CEA, DER, SPRC, F-13108 St Paul-Lez-Durance (France); Di-Salvo, J. [CEA, DER, SPEx, F-13108 St Paul-Lez-Durance (France)

2012-07-01T23:59:59.000Z