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1

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

2

CX-009287: 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: A9, B3.6 Date: 09/07/2012 Location(s): New Hampshire Offices(s): National Energy Technology Laboratory

3

Optical boundary reconstruction of tokamak plasmas for feedback control of plasma position and shape  

SciTech Connect

A new diagnostic is developed to reconstruct the plasma boundary using visible wavelength images. Exploiting the plasma's edge localized and toroidally symmetric emission profile, a new coordinate transform is presented to reconstruct the plasma boundary from a poloidal view image. The plasma boundary reconstruction is implemented in MATLAB and applied to camera images of Mega-Ampere Spherical Tokamak discharges. The optically reconstructed plasma boundaries are compared to magnetic reconstructions from the offline reconstruction code EFIT, showing very good qualitative and quantitative agreement. Average errors are within 2 cm and correlation is high. In the current software implementation, plasma boundary reconstruction from a single image takes 3 ms. The applicability and system requirements of the new optical boundary reconstruction, called OFIT, for use in both feedback control of plasma position and shape and in offline reconstruction tools are discussed.

Hommen, G.; Baar, M. de [Control Systems Technology Group, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (Netherlands); FOM Institute for Plasma Physics ''Rijnhuizen'', Association EURATOM-FOM, Trilateral Euregio Cluster, P.O. Box 1207, 3430 BE Nieuwegein (Netherlands); Nuij, P.; Steinbuch, M. [Control Systems Technology Group, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (Netherlands); McArdle, G.; Akers, R. [EURATOM/CCFE Fusion Association, Culham Science Centre, Abingdon, Oxfordshire OX14 3DB (United Kingdom)

2010-11-15T23:59:59.000Z

4

Extensive simulation studies on the reconstructed image resolution of a position sensitive detector based on pixelated CdTe crystals  

E-Print Network (OSTI)

We present results on the reconstructed image resolution of a position sensitive radiation instrument (COCAE) based on extensive simulation studies. The reconstructed image resolution has been investigated in a wide range of incident photon energies emitted by point-like sources located at different source-to-detector distances on and off the detector's symmetry axis. The ability of the detector to distinguish multiple radioactive sources observed simultaneously is investigating by simulating point-like sources of different energies located on and off the detector's symmetry axis and at different positions

Zachariadou, K; Kaissas, I; Seferlis, S; Lambropoulos, C; Loukas, D; Potiriadis, C

2011-01-01T23:59:59.000Z

5

Extensive simulation studies on the reconstructed image resolution of a position sensitive detector based on pixelated CdTe crystals  

E-Print Network (OSTI)

We present results on the reconstructed image resolution of a position sensitive radiation instrument (COCAE) based on extensive simulation studies. The reconstructed image resolution has been investigated in a wide range of incident photon energies emitted by point-like sources located at different source-to-detector distances on and off the detector's symmetry axis. The ability of the detector to distinguish multiple radioactive sources observed simultaneously is investigating by simulating point-like sources of different energies located on and off the detector's symmetry axis and at different positions

K. Zachariadou; K. Karafasoulis; I. Kaissas; S. Seferlis; C. Lambropoulos; D. Loukas; C. Potiriadis

2011-11-26T23:59:59.000Z

6

Position reconstruction in fission fragment detection using the low pressure MWPC technique for the JLab experiment E02-017  

SciTech Connect

When a lambda hyperon was embedded in a nucleus, it can form a hypernucleus. The lifetime and its mass dependence of stable hypernuclei provide information about the weak decay of lambda hyperon inside nuclear medium. This work will introduce the Jefferson Lab experiment (E02-017) which aims to study the lifetime of the heavy hypernuclei using a specially developed fission fragment detection technique, a multi-wire proportional chamber operated under low gas pressure (LPMWPC). Presented here are the method and performance of the reconstruction of fission position on the target foil, the separation of target materials at different regions and the comparison and verification with the Mote Carlo simulation.

Xi-Yu, Qiu [Lanzhou U.; Tang, Liguang [JLAB; Margaryan, Amur T. [Yerevan; Jin-Zhang, Xu [Lanzhou; Bi-Tao, Hu [Lanzhou; Xi-Meng, Chen [Lanzhou

2014-07-01T23:59:59.000Z

7

Novel method for hit-position reconstruction using voltage signals in plastic scintillators and its application to Positron Emission Tomography  

E-Print Network (OSTI)

Currently inorganic scintillator detectors are used in all commercial Time of Flight Positron Emission Tomograph (TOF-PET) devices. The J-PET collaboration investigates a possibility of construction of a PET scanner from plastic scintillators which would allow for single bed imaging of the whole human body. This paper describes a novel method of hit-position reconstruction based on sampled signals and an example of an application of the method for a single module with a 30 cm long plastic strip, read out on both ends by Hamamatsu R4998 photomultipliers. The sampling scheme to generate a vector with samples of a PET event waveform with respect to four user-defined amplitudes is introduced. The experimental setup provides irradiation of a chosen position in the plastic scintillator strip with an annihilation gamma quanta of energy 511~keV. The statistical test for a multivariate normal (MVN) distribution of measured vectors at a given position is developed, and it is shown that signals sampled at four thresholds in a voltage domain are approximately normally distributed variables. With the presented method of a vector analysis made out of waveform samples acquired with four thresholds, we obtain a spatial resolution of about 1 cm and a timing resolution of about 80 ps

L. Raczynski; P. Moskal; P. Kowalski; W. Wislicki; T. Bednarski; P. Bialas; E. Czerwinski; L . Kaplon; A. Kochanowski; G. Korcyl; J. Kowal; T. Kozik; W. Krzemien; E. Kubicz; M. Molenda; I. Moskal; Sz. Niedzwiecki; M. Palka; M. Pawlik-Niedzwiecka; Z. Rudy; P. Salabura; N. G. Sharma; M. Silarski; A. Slomski; J. Smyrski; A. Strzelecki; A. Wieczorek; M. Zielinski; N. Zon

2014-07-31T23:59:59.000Z

8

Iraq Reconstruction.  

E-Print Network (OSTI)

??The invasion planning, execution and ongoing reconstruction operations in Iraq are extremely complex. Using research, personal experience and experience of deployed members, this paper documents… (more)

Bradley, Judah C.

2006-01-01T23:59:59.000Z

9

Smoothing Wavelet Reconstruction  

E-Print Network (OSTI)

EdgeXchild and processEdgeYchild ................................ 36 Figure 15. Reconstructing Stanford Bunny ...................................................................... 37 Figure 16. Reconstructing EPFL Aquarius... ...................................................................... 38 Figure 17. Reconstructing Stanford Bunny (front) .......................................................... 41 Figure 18. Reconstructing Stanford Bunny (back) ........................................................... 41 Figure 19...

Garg, Deepak

2013-04-23T23:59:59.000Z

10

Synchronized dynamic dose reconstruction  

SciTech Connect

Variations in target volume position between and during treatment fractions can lead to measurable differences in the dose distribution delivered to each patient. Current methods to estimate the ongoing cumulative delivered dose distribution make idealized assumptions about individual patient motion based on average motions observed in a population of patients. In the delivery of intensity modulated radiation therapy (IMRT) with a multi-leaf collimator (MLC), errors are introduced in both the implementation and delivery processes. In addition, target motion and MLC motion can lead to dosimetric errors from interplay effects. All of these effects may be of clinical importance. Here we present a method to compute delivered dose distributions for each treatment beam and fraction, which explicitly incorporates synchronized real-time patient motion data and real-time fluence and machine configuration data. This synchronized dynamic dose reconstruction method properly accounts for the two primary classes of errors that arise from delivering IMRT with an MLC: (a) Interplay errors between target volume motion and MLC motion, and (b) Implementation errors, such as dropped segments, dose over/under shoot, faulty leaf motors, tongue-and-groove effect, rounded leaf ends, and communications delays. These reconstructed dose fractions can then be combined to produce high-quality determinations of the dose distribution actually received to date, from which individualized adaptive treatment strategies can be determined.

Litzenberg, Dale W.; Hadley, Scott W.; Tyagi, Neelam; Balter, James M.; Ten Haken, Randall K.; Chetty, Indrin J. [University of Michigan, Ann Arbor, Michigan 48109 (United States)

2007-01-15T23:59:59.000Z

11

Precision Muon Reconstruction in Double Chooz  

E-Print Network (OSTI)

We describe a muon track reconstruction algorithm for the reactor anti-neutrino experiment Double Chooz. The Double Chooz detector consists of two optically isolated volumes of liquid scintillator viewed by PMTs, and an Outer Veto above these made of crossed scintillator strips. Muons are reconstructed by their Outer Veto hit positions along with timing information from the other two detector volumes. All muons are fit under the hypothesis that they are through-going and ultrarelativistic. If the energy depositions suggest that the muon may have stopped, the reconstruction fits also for this hypothesis and chooses between the two via the relative goodness-of-fit. In the ideal case of a through-going muon intersecting the center of the detector, the resolution is ~40 mm in each transverse dimension. High quality muon reconstruction is an important tool for reducing the impact of the cosmogenic isotope background in Double Chooz.

Abe, Y; Barriere, J C; Baussan, E; Bekman, I; Bergevin, M; Bezerra, T J C; Bezrukov, L; Blucher, E; Buck, C; Busenitz, J; Cabrera, A; Caden, E; Camilleri, L; Carr, R; Cerrada, M; Chang, P -J; Chauveau, E; Chimenti, P; Collin, A P; Conover, E; Conrad, J M; Crespo-Anadón, J I; Crum, K; Cucoanes, A; Damon, E; Dawson, J V; Dietrich, D; Djurcic, Z; Dracos, M; Elnimr, M; Etenko, A; Fallot, M; von Feilitzsch, F; Felde, J; Fernandes, S M; Fischer, V; Franco, D; Franke, M; Furuta, H; Gil-Botella, I; Giot, L; Göger-Neff, M; Gonzalez, L F G; Goodenough, L; Goodman, M C; Grant, C; Haag, N; Hara, T; Haser, J; Hofmann, M; Horton-Smith, G A; Hourlier, A; Ishitsuka, M; Jochum, J; Jollet, C; Kaether, F; Kalousis, L N; Kamyshkov, Y; Kaplan, D M; Kawasaki, T; Kemp, E; de Kerret, H; Kryn, D; Kuze, M; Lachenmaier, T; Lane, C E; Lasserre, T; Letourneau, A; Lhuillier, D; Lima, H P; Lindner, M; no, J M López-Casta; LoSecco, J M; Lubsandorzhiev, B; Lucht, S; Maeda, J; Mariani, C; Maricic, J; Martino, J; Matsubara, T; Mention, G; Meregaglia, A; Miletic, T; Milincic, R; Minotti, A; Nagasaka, Y; Nikitenko, Y; Novella, P; Obolensky, M; Oberauer, L; Onillon, A; Osborn, A; Palomares, C; Pepe, I M; Perasso, S; Pfahler, P; Porta, A; Pronost, G; Reichenbacher, J; Reinhold, B; Röhling, M; Roncin, R; Roth, S; Rybolt, B; Sakamoto, Y; Santorelli, R; Schilithz, A C; Schönert, S; Schoppmann, S; Shaevitz, M H; Sharankova, R; Shimojima, S; Sibille, V; Sinev, V; Skorokhvatov, M; Smith, E; Spitz, J; Stahl, A; Stancu, I; Stokes, L F F; Strait, M; Stüken, A; Suekane, F; Sukhotin, S; Sumiyoshi, T; Sun, Y; Svoboda, R; Terao, K; Tonazzo, A; Thi, H H Trinh; Valdiviesso, G; Vassilopoulos, N; Veyssiere, C; Vivier, M; Wagner, S; Watanabe, H; Wiebusch, C; Winslow, L; Wurm, M; Yang, G; Yermia, F; Zimmer, V

2014-01-01T23:59:59.000Z

12

Offered: Offered: Position(s): Position(s)  

E-Print Network (OSTI)

Company: Industry: Website: Majors: Offered: Offered: Position(s): Position(s): Description and in manufacturing problems associated with the inspection and testing of products. - Establishes operating equipment with design personnel to ensure that processes and designs are compatible. - Reviews and evaluates engineering

New Hampshire, University of

13

Offered: Offered: Position(s): Position(s)  

E-Print Network (OSTI)

Company: Industry: Website: Majors: Offered: Offered: Position(s): Position(s): Description. Contribute to or perform testing and evaluation to satisfy task goal. Initiate, coordinate, participate October 22, 2013 -- 12:00-4:00pm Yes Mechanical Design Engineer Goss International is a global leader

New Hampshire, University of

14

3D heart reconstruction.  

E-Print Network (OSTI)

??The purpose of this thesis was to achieve a 3D reconstruction of the four heart chambers using 2D echocardiographic images. A level set algorithm based… (more)

Roxo, Diogo

2011-01-01T23:59:59.000Z

15

Quadratic cost functional for wave-front reconstruction  

Science Journals Connector (OSTI)

A quadratic cost functional for reconstruction of a high-resolution wave front from a coarse wave front is presented. The functional uses as data the position and the direction of the...

Legarda-Sáenz, Ricardo; Rivera, Mariano; Rodríguez-Vera, Ramón

2002-01-01T23:59:59.000Z

16

Position Management  

Directives, Delegations, and Requirements

The order prescribes the policies, responsibilities, and procedures for position management within (DOE). Canceled by DOE N 1321.140. Cancels DOE 3510.1

1992-06-23T23:59:59.000Z

17

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

18

Overview of Image Reconstruction  

SciTech Connect

Image reconstruction (or computerized tomography, etc.) is any process whereby a function, f, on Rn is estimated from empirical data pertaining to its integrals, ∫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

19

Medical Image Reconstruction Using Kernel Based Methods  

E-Print Network (OSTI)

The image reconstruction problem consists in finding an approximation of a function f starting from its Radon transform Rf. This problem arises in the ambit of medical imaging when one tries to reconstruct the internal structure of the body, starting from its X-ray tomography. The classical approach to this problem is based on the Back-Projection Formula. This formula gives an analytical inversion of the Radon transform, provided that all the values of Rf are known. In applications only a discrete set of values of Rf is given, thus, one can only obtain an approximation of f. Another class of methods, called ART, can be used to solve the reconstruction problem. Following the ideas contained in ART, we try to apply the Hermite-Birkhoff interpolation to the reconstruction problem. It turns out that, since the Radon transform of a kernel basis function can be infinity, a regularization technique is needed. The method we present here is then based on positive definite kernel functions and it is very flexible thank...

Sironi, Amos

2011-01-01T23:59:59.000Z

20

Positioning apparatus  

DOE Patents (OSTI)

An apparatus is provided for precisely adjusting the position of an article relative to a beam emerging from a neutron source disposed in a housing. The apparatus includes a support pivotably mounted on a movable base plate and freely suspended therefrom. The support is gravity biased toward the housing and carries an article holder movable in a first direction longitudinally of the axis of said beam and normally urged into engagement against said housing. Means are provided for moving the base plate in two directions to effect movement of the suspended holder in two mutually perpendicular directions, respectively, normal to the axis of the beam.

Vogel, M.A.; Alter, P.

1983-07-07T23:59:59.000Z

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

Positioning apparatus  

DOE Patents (OSTI)

An apparatus for precisely positioning materials test specimens within the optimum neutron flux path emerging from a neutron source located in a housing. The test specimens are retained in a holder mounted on the free end of a support pivotably mounted and suspended from a movable base plate. The support is gravity biased to urge the holder in a direction longitudinally of the flux path against the housing. Means are provided for moving the base plate in two directions to effect movement of the holder in two mutually perpendicular directions normal to the axis of the flux path.

Vogel, Max A. (Kennewick, WA); Alter, Paul (Richland, WA)

1986-01-01T23:59:59.000Z

22

Region-of-interest reconstruction of motion-contaminated data using a weighted backprojection filtration algorithm  

SciTech Connect

The recently developed weighted backprojection filtration (WBPF) algorithm using data redundancy has capabilities that make this algorithm an attractive candidate for reconstructing images from motion-contaminated projection data. First, the WBPF algorithm is capable of reconstructing region-of-interest (ROI) images from reduced-scan fan-beam data, which have less data than the short-scan data required to reconstruct the entire field of view (FOV). Second, this algorithm can reconstruct ROI images from truncated data. Using phantom simulation studies, we demonstrate how these unique capabilities can be exploited to reduce the amount of motion-contaminated data used for reconstruction. In particular, we use examples from cardiac imaging to illustrate how off-center phantom positioning combined with phase-interval ROI reconstruction can result in the suppression of motion artifacts. In terms of temporal resolution, reduced-scan reconstruction with 45% of a full-scan dataset can be used to improve the temporal resolution of a short-scan reconstruction by 25.8% if ungated data are used. For data gated at 66 beats per minute, reduced-scan reconstruction with 45% of a full-scan dataset can be used to improve the temporal resolution of a short-scan reconstruction by 7.9%. As a result of our studies, we believe that the WBPF algorithm demonstrates the potential for reconstructing quality ROI images from motion-contaminated fan-beam data.

King, Martin; Pan Xiaochuan; Yu Lifeng; Giger, Maryellen [Department of Radiology, University of Chicago (United States)

2006-05-15T23:59:59.000Z

23

Random unitary maps for quantum state reconstruction  

SciTech Connect

We study the possibility of performing quantum state reconstruction from a measurement record that is obtained as a sequence of expectation values of a Hermitian operator evolving under repeated application of a single random unitary map, U{sub 0}. We show that while this single-parameter orbit in operator space is not informationally complete, it can be used to yield surprisingly high-fidelity reconstruction. For a d-dimensional Hilbert space with the initial observable in su(d), the measurement record lacks information about a matrix subspace of dimension {>=}d-2 out of the total dimension d{sup 2}-1. We determine the conditions on U{sub 0} such that the bound is saturated, and show they are achieved by almost all pseudorandom unitary matrices. When we further impose the constraint that the physical density matrix must be positive, we obtain even higher fidelity than that predicted from the missing subspace. With prior knowledge that the state is pure, the reconstruction will be perfect (in the limit of vanishing noise) and for arbitrary mixed states, the fidelity is over 0.96, even for small d, and reaching F>0.99 for d>9. We also study the implementation of this protocol based on the relationship between random matrices and quantum chaos. We show that the Floquet operator of the quantum kicked top provides a means of generating the required type of measurement record, with implications on the relationship between quantum chaos and information gain.

Merkel, Seth T. [Institute for Quantum Computing, Waterloo, Ontario N2L 3G1 (Canada); Riofrio, Carlos A.; Deutsch, Ivan H. [Center for Quantum Information and Control (CQuIC), Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico, 87131 (United States); Flammia, Steven T. [Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5 (Canada); Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106 (United States)

2010-03-15T23:59:59.000Z

24

Reconstruction on Si(100) surfaces  

Science Journals Connector (OSTI)

We have observed several reconstructions on a Si(100) surface with different annealing procedures. The observed reconstructed phases are the coexistence of the (2×2) phase and the (2×8) phase after high-temperature (?950 K) annealing followed by quenching, and the half-order streak with the presence of the (2×1) phase after low-temperature (?950 K) annealing. The phase transition from the metastable (2×2) and (2×8) phases to the stable half-order streak is reversible upon annealing temperature and cooling rate. The distribution of kinks and missing dimer defects is expected to be the main cause of these reconstructions.

Young Joo Lee; Sehun Kim; Chi-Sun Hwang; C. Lee; Chanyong Hwang

1994-10-15T23:59:59.000Z

25

Dynamic Positioning Simulator Dynamic Positioning Simulator  

E-Print Network (OSTI)

Simulator 5 / 24 #12;Dynamic Positioning Simulator Dynamic Positioning Why Dynamic Positioning? Advantages Dynamic Positioning: No tugboats needed; Offshore set-up is quick; Power saving; Precision situations more on Ship: Wind Force Fw = 1 2 air V 2 rw CXw (rw )AT 1 2 air V 2 rw CYw (rw )AL Mw = 1 2 air V 2 rw CMw (rw

Vuik, Kees

26

Digital Pygmalion Accurate 3D reconstruction  

E-Print Network (OSTI)

;Overview · Accurate 3D reconstruction from uncalibrated cameras (motion and lighting) · Multi-view stereo - 3D shape from uncalibrated images (review) · Multi-view photometric stereo with uncalibrated lights reconstruction of streets #12;Trumpington Street Data #12;3D reconstruction #12;Reconstruction texture mapped #12

Cipolla, Roberto

27

Introduction Positive finite rank . . .  

E-Print Network (OSTI)

Introduction Positive finite rank . . . Positive finite rank . . . Positive finite rank . . . ¯� I qixf1981@sxu.edu.cn #12;Introduction Positive finite rank . . . Positive finite rank . . . Positive finite rank . . . ¯� I K 12 19 £ ¶w« ' 4 ò � 1 Introduction · In quantum mechanics, a quantum system

Li, Chi-Kwong

28

Three?Dimensional Reconstruction Optical System Using Shadows Triangulation  

Science Journals Connector (OSTI)

In this work is developed a three?dimensional reconstruction system using the Shades3D tool of the Matlab® Programming Language and materials of low cost such as webcam camera a stick a weak structured lighting system composed by a desk lamp and observation plane in which the object is located. The reconstruction is obtained through a triangulation process that is executed after acquiring a sequence of images of the scene with a shadow projected on the object; additionally an image filtering process is done for obtaining only the part of the scene that will be reconstructed. Previously it is necessary to develop a calibration process for determining the internal camera geometric and optical characteristics (intrinsic parameters) and the 3D position and orientation of the camera frame relative to a certain world coordinate system (extrinsic parameters). The lamp and the stick are used to produce a shadow which scans the object; in this technique it is not necessary to know the position of the light source instead the triangulation is obtained using shadow plane produced by intersection between the stick and the illumination pattern. The webcam camera captures all images with the shadow scanning the object and Shades3D tool processes all information taking into account captured images and calibration parameters. Likewise this technique is evaluated in the reconstruction of parts of the human body and its application in the detection of external abnormalities and elaboration of prosthesis or implant.

J. Leiner Barba; Q. Lorena Vargas; M. Cesar Torres; V. Lorenzo Mattos

2008-01-01T23:59:59.000Z

29

3D Equilibrium Reconstruction for  

E-Print Network (OSTI)

,dipole jplasma Bexternal M. Drevlak et al. Nuclear Fusion 45 (2005) H.J Gardner, Nuclear Fusion 30 1417? Equilibrium Model Synthetic Signals Input Parameters Currents Vacuum Fields Pressure, etc. These need; pf = p0 + h Equilibrium is defined by a set of input parameters (p0). Reconstruction seeks to find

Columbia University

30

Santo Antonio de Tanna story and reconstruction  

E-Print Network (OSTI)

of the research goals presented on this abstract – the reconstruction of a Portuguese frigate, Santo Antonio de Tanná, from its submerged remains. This thesis focuses on the mechanisms of reconstructing the ship, including the thought process, new computer tools...

Fraga, Tiago Miguel

2009-05-15T23:59:59.000Z

31

Muon Reconstruction and Identification in CMS  

SciTech Connect

We present the design strategies and status of the CMS muon reconstruction and identification identification software. Muon reconstruction and identification is accomplished through a variety of complementary algorithms. The CMS muon reconstruction software is based on a Kalman filter technique and reconstructs muons in the standalone muon system, using information from all three types of muon detectors, and links the resulting muon tracks with tracks reconstructed in the silicon tracker. In addition, a muon identification algorithm has been developed which tries to identify muons with high efficiency while maintaining a low probability of misidentification. The muon identification algorithm is complementary by design to the muon reconstruction algorithm that starts track reconstruction in the muon detectors. The identification algorithm accepts reconstructed tracks from the inner tracker and attempts to quantify the muon compatibility for each track using associated calorimeter and muon detector hit information. The performance status is based on detailed detector simulations as well as initial studies using cosmic muon data.

Everett, A. [Purdue University, West Lafayette, IN, 47906 (United States)

2010-02-10T23:59:59.000Z

32

8, 40994116, 2008 Reconstruction of the  

E-Print Network (OSTI)

ACPD 8, 4099­4116, 2008 Reconstruction of the solar UV irradiance from LYRA data T. Egorova et al.0 License. Atmospheric Chemistry and Physics Discussions Reconstruction of the solar spectral UV irradiance on behalf of the European Geosciences Union. 4099 #12;ACPD 8, 4099­4116, 2008 Reconstruction of the solar UV

Boyer, Edmond

33

POSITION MANAGEMENT ACTION FORM  

E-Print Network (OSTI)

POSITION MANAGEMENT ACTION FORM Workforce Planning | 408-924-2250 classcomp@sjsu.edu SJSU Human FOR POSITION MANAGEMENT FORM Workforce Planning | 408-924-2250| classcomp@sjsu.edu SJSU Human Resources Revised contact your Workforce Planning Analyst. List the name of the position this position reports to

Eirinaki, Magdalini

34

Addressing Missclassified Positions  

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

2 2009 2 2009 MEMORANDUM FOR HUMAN RESOURCE DIRECTORS FROM: CAPITAL OFFICER SUBJECT: GULDANCE MEMORANDUM #3: Addressing Misclassified Positions This memorandum provides policy guidance on how to consistently address misclassified positions within the Department and is effective immediately. There are several different circumstances that affect how a misclassified position will be addressed. These are discussed below: If it is determined that a position is classified to the wrong title, then the classification must be corrected immediately. If it is determined that a position is classified to the wrong series, then the classification must be corrected immediately. Note: The series determination involves distinguishing between one-grade interval work and two-grade interval

35

Multibody Models for Vehicle Accident Reconstruction  

Science Journals Connector (OSTI)

Simplified multibody models can be used to reconstruct accidents involving complex dynamics, particularly, in the first stages of accident investigation, accidents involving motorcycles and pedestrians [1], [2].

Ricardo J. F. Portal; João M. P. Dias

2006-01-01T23:59:59.000Z

36

Circuit reconstruction tools today Stephen J Smith  

E-Print Network (OSTI)

Circuit reconstruction tools today Stephen J Smith To understand how a brain processes information, Stanford University School of Medicine, Stanford, CA 94305, United States Corresponding author: Smith

Born, Richard

37

Position Management and Classification  

Directives, Delegations, and Requirements

The Order establishes Departmental requirements and responsibilities for classifying positions using the General Schedule (GS) and the Federal Wage System (FWS) standards.

2014-10-30T23:59:59.000Z

38

Accelerated signal encoding and reconstruction using pixon method  

DOE Patents (OSTI)

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

39

Image reconstruction methods for the PBX-M pinhole camera  

SciTech Connect

This paper describes two methods which have been used to reconstruct the soft x-ray emission profile of the PBX-M tokamak from the projected images recorded by the PBX-M pinhole camera. Both methods must accurately represent the shape of the reconstructed profile while also providing a degree of immunity to noise in the data. The first method is a simple least squares fit to the data. This has the advantage of being fast and small, and thus easily implemented on the PDP-11 computer used to control the video digitizer for the pinhole camera. The second method involves the application of a maximum entropy algorithm to an overdetermined system. This has the advantage of allowing the use of a default profile. This profile contains additional knowledge about the plasma shape which can be obtained from equilibrium fits to the external magnetic measurements. Additionally the reconstruction is guaranteed positive, and the fit to the data can be relaxed by specifying both the amount and distribution of noise in the image. The algorithm described has the advantage of being considerably faster, for an overdetermined system, than the usual Lagrange multiplier approach to finding the maximum entropy solution. 13 refs., 24 figs.

Holland, A.; Powell, E.T.; Fonck, R.J.

1990-03-01T23:59:59.000Z

40

Positioning and locking apparatus  

DOE Patents (OSTI)

A positioning and locking apparatus including a fixture having a rotatable torque ring provided with a plurality of cam segments for automatically guiding a container into a desired location within the fixture. Rotation of the ring turns the container into a final position in pressure sealing relation against a hatch member.

Hayward, M.L.; Harper, W.H.

1985-06-19T23:59:59.000Z

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

Positioning and locking apparatus  

DOE Patents (OSTI)

A positioning and locking apparatus are disclosed including a fixture having a rotatable torque ring provided with a plurality of cam segments for automatically guiding a container into a desired location within the fixture. Rotation of the ring turns the container into a final position in pressure sealing relation against a hatch member. 6 figs.

Hayward, M.L.; Harper, W.H.

1987-06-30T23:59:59.000Z

42

Positioning and locking apparatus  

DOE Patents (OSTI)

A positioning and locking apparatus including a fixture having a rotatable torque ring provided with a plurality of cam segments for automatically guiding a container into a desired location within the fixture. Rotation of the ring turns the container into a final position in pressure sealing relation against a hatch member.

Hayward, Milton L. (2305 Greenbrook Blvd., Richland, WA 99352); Harper, William H. (1454 Amon Dr., Richland, WA 99352)

1987-01-01T23:59:59.000Z

43

POSITION OPENING APPLIED STATISTICS  

E-Print Network (OSTI)

: Assistant or Associate Professor of Applied Statistics. Employment Beginning: September 16, 2012 DescriptionPOSITION OPENING APPLIED STATISTICS Department of Decision Sciences Charles H. Lundquist College at the University of Oregon is seeking to fill one tenure-track faculty position in Applied Statistics. Rank

Shepp, Larry

44

Redundant positioning architecture  

Science Journals Connector (OSTI)

Positioning has been a driving factor in the development of ubiquitous computing applications throughout the past two decades. Numerous devices and techniques have been developed-few of them are actually used commercially. The precision is limited to ... Keywords: Context awareness, Distributed objects, Location awareness, Positioning

Tom Pfeifer

2005-08-01T23:59:59.000Z

45

Cavity Field Reconstruction at Finite Temperature  

E-Print Network (OSTI)

We present a scheme to reconstruct the quantum state of a field preparedinside a lossy cavity at finite temperature. Quantum coherences are normallydestroyed by the interaction with an environment, but we show that it ispossible to recover complete information about the initial state (beforeinteraction with its environment), making possible to reconstruct any$s$-parametrized quasiprobability distribution, in particular, the Wignerfunction.

Moya-Cessa, H; Tombesi, P; Roversi, J A

2000-01-01T23:59:59.000Z

46

Forward Rasterization: A Reconstruction Algorithm for  

E-Print Network (OSTI)

-buffer sample- selection method, designed to ensure that the set of selected samples covers every visibleForward Rasterization: A Reconstruction Algorithm for Image-Based Rendering TROl-019 May 29, 2001: A RECONSTRUCTION ALGORITHM FOR IMAGE-BASED RENDERING by Voicu Sebastian Popescu A dissertation submitted

North Carolina at Chapel Hill, University of

47

Spectrum Sensing and Reconstruction for Cognitive Radio  

E-Print Network (OSTI)

Spectrum Sensing and Reconstruction for Cognitive Radio Amanpreet S Saini, Zhen Hu, Robert Qiu with spectrum sensing and spectrum reconstruction under the umbrella of cognitive radio which is the smart radio to explore and exploit the free spectrum. Spectrum analyzer is used to emulate cognitive radio to do spectrum

Qiu, Robert Caiming

48

Muon reconstruction with AMANDA Christopher Wiebusch  

E-Print Network (OSTI)

Muon reconstruction with AMANDA Christopher Wiebusch DESY IfH Platanenallee 6, 15738 Zeuthen, Germany Abstract This document describes the method of muon track reconstruction in AMANDA. #12; 1 particles such as muons. Clearly identified up­going muon tracks are a key signature for charged current

Wiebusch, Christopher

49

General Geometry CT Reconstruction Alexei Ramotar  

E-Print Network (OSTI)

, reconstruction, Filtered Back Projection Submitted to IPCV'06 Abstract We present an efficient and accurate acquired by a parallel-beam CT scanner. Once in that form, Filtered Back Projection can be used to perform technology that uses many small x-ray images to reconstruct a view of the internal structures of an object

Orchard, Jeffery J.

50

Fast Globally Convergent Reconstruction in Emission Tomography  

E-Print Network (OSTI)

considerable speedup by using only a subset of the projection data per sub- iteration. However, OSEM1 Fast Globally Convergent Reconstruction in Emission Tomography Using COSEM, an Incremental EM globally convergent incremental EM algorithms for reconstruction in emission tomography, COSEM- ML

Rangarajan, Anand

51

Equilibrium Reconstruction on the Large Helical Device  

SciTech Connect

Equilibrium reconstruction is commonly applied to axisymmetric toroidal devices. Recent advances in computational power and equilibrium codes have allowed for reconstructions of three-dimensional fields in stellarators and heliotrons. We present the first reconstructions of finite beta discharges in the Large Helical Device (LHD). The plasma boundary and magnetic axis are constrained by the pressure profile from Thomson scattering. This results in a calculation of plasma beta without a-priori assumptions of the equipartition of energy between species. Saddle loop arrays place additional constraints on the equilibrium. These reconstruction utilize STELLOPT, which calls VMEC. The VMEC equilibrium code assumes good nested flux surfaces. Reconstructed magnetic fields are fed into the PIES code which relaxes this constraint allowing for the examination of the effect of islands and stochastic regions on the magnetic measurements.

Samuel A. Lazerson, D. Gates, D. Monticello, H. Neilson, N. Pomphrey, A. Reiman S. Sakakibara, and Y. Suzuki

2012-07-27T23:59:59.000Z

52

Position feedback system for volume holographic storage media  

DOE Patents (OSTI)

A method of holographic recording in a photorefractive medium wherein stored holograms may be retrieved with maximum signal-to noise ratio (SNR) is disclosed. A plurality of servo blocks containing position feedback information is recorded in the crystal and made non-erasable by heating the crystal. The servo blocks are recorded at specific increments, either angular or frequency, depending whether wavelength or angular multiplexing is applied, and each servo block is defined by one of five patterns. Data pages are then recorded at positions or wavelengths enabling each data page to be subsequently reconstructed with servo patterns which provide position feedback information. The method of recording data pages and servo blocks is consistent with conventional practices. In addition, the recording system also includes components (e.g. voice coil motor) which respond to position feedback information and adjust the angular position of the reference angle of a reference beam to maximize SNR by reducing crosstalk, thereby improving storage capacity.

Hays, Nathan J. (San Francisco, CA); Henson, James A. (Morgan Hill, CA); Carpenter, Christopher M. (Sunnyvale, CA); Akin, Jr.. William R. (Morgan Hill, CA); Ehrlich, Richard M. (Saratoga, CA); Beazley, Lance D. (San Jose, CA)

1998-07-07T23:59:59.000Z

53

Sustainability Peer Educator Positions Position: Sustainability Peer Educator  

E-Print Network (OSTI)

Sustainability Peer Educator Positions Position: Sustainability Peer Educator Available Positions 2013 ­ April 2014 Position Summary: Working with the Sustainability Project Coordinator, this team of students will be responsible for enhancing and educating UTSC students, staff and faculty on sustainability

Boonstra, Rudy

54

Video image position determination  

DOE Patents (OSTI)

An optical beam position controller in which a video camera captures an image of the beam in its video frames, and conveys those images to a processing board which calculates the centroid coordinates for the image. The image coordinates are used by motor controllers and stepper motors to position the beam in a predetermined alignment. In one embodiment, system noise, used in conjunction with Bernoulli trials, yields higher resolution centroid coordinates.

Christensen, Wynn (Los Alamos, NM); Anderson, Forrest L. (Bernalillo, NM); Kortegaard, Birchard L. (Los Alamos, NM)

1991-01-01T23:59:59.000Z

55

Other Positions | Department of Energy  

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

attorneys, IT specialists, and other staff support positions. Leadership Careers Auditor Criminal Investigator Inspector Other Positions Vacancies Audits & Inspections...

56

Improved proton computed tomography by dual modality image reconstruction  

SciTech Connect

Purpose: Proton computed tomography (CT) is a promising image modality for improving the stopping power estimates and dose calculations for particle therapy. However, the finite range of about 33 cm of water of most commercial proton therapy systems limits the sites that can be scanned from a full 360° rotation. In this paper the authors propose a method to overcome the problem using a dual modality reconstruction (DMR) combining the proton data with a cone-beam x-ray prior. Methods: A Catphan 600 phantom was scanned using a cone beam x-ray CT scanner. A digital replica of the phantom was created in the Monte Carlo code Geant4 and a 360° proton CT scan was simulated, storing the entrance and exit position and momentum vector of every proton. Proton CT images were reconstructed using a varying number of angles from the scan. The proton CT images were reconstructed using a constrained nonlinear conjugate gradient algorithm, minimizing total variation and the x-ray CT prior while remaining consistent with the proton projection data. The proton histories were reconstructed along curved cubic-spline paths. Results: The spatial resolution of the cone beam CT prior was retained for the fully sampled case and the 90° interval case, with the MTF = 0.5 (modulation transfer function) ranging from 5.22 to 5.65?linepairs/cm. In the 45° interval case, the MTF = 0.5 dropped to 3.91?linepairs/cm For the fully sampled DMR, the maximal root mean square (RMS) error was 0.006 in units of relative stopping power. For the limited angle cases the maximal RMS error was 0.18, an almost five-fold improvement over the cone beam CT estimate. Conclusions: Dual modality reconstruction yields the high spatial resolution of cone beam x-ray CT while maintaining the improved stopping power estimation of proton CT. In the case of limited angles, the use of prior image proton CT greatly improves the resolution and stopping power estimate, but does not fully achieve the quality of a 360° proton CT scan.

Hansen, David C., E-mail: dch@ki.au.dk; Bassler, Niels [Experimental Clinical Oncology, Aarhus University, 8000 Aarhus C (Denmark)] [Experimental Clinical Oncology, Aarhus University, 8000 Aarhus C (Denmark); Petersen, Jørgen Breede Baltzer [Medical Physics, Aarhus University Hospital, 8000 Aarhus C (Denmark)] [Medical Physics, Aarhus University Hospital, 8000 Aarhus C (Denmark); Sørensen, Thomas Sangild [Computer Science, Aarhus University, 8000 Aarhus C, Denmark and Clinical Medicine, Aarhus University, 8200 Aarhus N (Denmark)] [Computer Science, Aarhus University, 8000 Aarhus C, Denmark and Clinical Medicine, Aarhus University, 8200 Aarhus N (Denmark)

2014-03-15T23:59:59.000Z

57

Cardiac C-arm computed tomography using a 3D + time ROI reconstruction method with spatial and temporal regularization  

SciTech Connect

Purpose: Reconstruction of the beating heart in 3D + time in the catheter laboratory using only the available C-arm system would improve diagnosis, guidance, device sizing, and outcome control for intracardiac interventions, e.g., electrophysiology, valvular disease treatment, structural or congenital heart disease. To obtain such a reconstruction, the patient's electrocardiogram (ECG) must be recorded during the acquisition and used in the reconstruction. In this paper, the authors present a 4D reconstruction method aiming to reconstruct the heart from a single sweep 10 s acquisition. Methods: The authors introduce the 4D RecOnstructiOn using Spatial and TEmporal Regularization (short 4D ROOSTER) method, which reconstructs all cardiac phases at once, as a 3D + time volume. The algorithm alternates between a reconstruction step based on conjugate gradient and four regularization steps: enforcing positivity, averaging along time outside a motion mask that contains the heart and vessels, 3D spatial total variation minimization, and 1D temporal total variation minimization. Results: 4D ROOSTER recovers the different temporal representations of a moving Shepp and Logan phantom, and outperforms both ECG-gated simultaneous algebraic reconstruction technique and prior image constrained compressed sensing on a clinical case. It generates 3D + time reconstructions with sharp edges which can be used, for example, to estimate the patient's left ventricular ejection fraction. Conclusions: 4D ROOSTER can be applied for human cardiac C-arm CT, and potentially in other dynamic tomography areas. It can easily be adapted to other problems as regularization is decoupled from projection and back projection.

Mory, Cyril, E-mail: cyril.mory@philips.com [Université de Lyon, CREATIS, CNRS UMR5220, Inserm U1044, INSA-Lyon, Université Lyon 1, F-69621 Villeurbanne Cedex (France) [Université de Lyon, CREATIS, CNRS UMR5220, Inserm U1044, INSA-Lyon, Université Lyon 1, F-69621 Villeurbanne Cedex (France); Philips Research Medisys, 33 rue de Verdun, 92156 Suresnes (France); Auvray, Vincent; Zhang, Bo [Philips Research Medisys, 33 rue de Verdun, 92156 Suresnes (France)] [Philips Research Medisys, 33 rue de Verdun, 92156 Suresnes (France); Grass, Michael; Schäfer, Dirk [Philips Research, Röntgenstrasse 24–26, D-22335 Hamburg (Germany)] [Philips Research, Röntgenstrasse 24–26, D-22335 Hamburg (Germany); Chen, S. James; Carroll, John D. [Department of Medicine, Division of Cardiology, University of Colorado Denver, 12605 East 16th Avenue, Aurora, Colorado 80045 (United States)] [Department of Medicine, Division of Cardiology, University of Colorado Denver, 12605 East 16th Avenue, Aurora, Colorado 80045 (United States); Rit, Simon [Université de Lyon, CREATIS, CNRS UMR5220, Inserm U1044, INSA-Lyon, Université Lyon 1 (France) [Université de Lyon, CREATIS, CNRS UMR5220, Inserm U1044, INSA-Lyon, Université Lyon 1 (France); Centre Léon Bérard, 28 rue Laënnec, F-69373 Lyon (France); Peyrin, Françoise [Université de Lyon, CREATIS, CNRS UMR5220, Inserm U1044, INSA-Lyon, Université Lyon 1, F-69621 Villeurbanne Cedex (France) [Université de Lyon, CREATIS, CNRS UMR5220, Inserm U1044, INSA-Lyon, Université Lyon 1, F-69621 Villeurbanne Cedex (France); X-ray Imaging Group, European Synchrotron, Radiation Facility, BP 220, F-38043 Grenoble Cedex (France); Douek, Philippe; Boussel, Loïc [Université de Lyon, CREATIS, CNRS UMR5220, Inserm U1044, INSA-Lyon, Université Lyon 1 (France) [Université de Lyon, CREATIS, CNRS UMR5220, Inserm U1044, INSA-Lyon, Université Lyon 1 (France); Hospices Civils de Lyon, 28 Avenue du Doyen Jean Lépine, 69500 Bron (France)

2014-02-15T23:59:59.000Z

58

Photon position measure  

E-Print Network (OSTI)

The positive operator valued measure (POVM) for a photon counting array detector is derived and found to equal photon flux density integrated over pixel area and measurement time. Since photon flux density equals number density multiplied by the speed of light, this justifies theoretically the observation that a photon counting array provides a coarse grained measurement of photon position. The POVM obtained here can be written as a set of projectors onto a basis of localized states, consistent with the description of photon position in a recent quantum imaging proposal [M. Tsang, Phys. Rev. Lett. \\textbf{102}, 253601 (2009)]. The wave function that describes a photon counting experiment is the projection of the photon state vector onto this localized basis. Collapse is to the electromagnetic vacuum and not to a localized state, thus violating the text book rules of quantum mechanics but compatible with the theory of generalized observables and the nonlocalizability of an incoming photon.

Margaret Hawton

2010-07-03T23:59:59.000Z

59

Photon position measure  

E-Print Network (OSTI)

The positive operator valued measure (POVM) for a photon counting array detector is derived and found to equal photon flux density integrated over pixel area and measurement time. Since photon flux density equals number density multiplied by the speed of light, this justifies theoretically the observation that a photon counting array provides a coarse grained measurement of photon position. The POVM obtained here can be written as a set of projectors onto a basis of localized states, consistent with the description of photon position in a recent quantum imaging proposal [M. Tsang, Phys. Rev. Lett. \\textbf{102}, 253601 (2009)]. The wave function that describes a photon counting experiment is the projection of the photon state vector onto this localized basis. Collapse is to the electromagnetic vacuum and not to a localized state, thus violating the text book rules of quantum mechanics but compatible with the theory of generalized observables and the nonlocalizability of an incoming photon.

Hawton, Margaret

2010-01-01T23:59:59.000Z

60

POSITIVE TRAIN CONTROL  

E-Print Network (OSTI)

Abstract — Positive train control (PTC) is a modern system of monitoring and controlling train movements to provide advanced safety. This system uses the latest technology in mobile wireless communication. In Sept 2008, the US Congress considered a new rail safety law that sets a deadline of 2015 for implementation of positive train control (PTC) technology across most of the U.S. rail network. The bill was developed in response to the collision of a Metro link passenger train and a Union Pacific freight train Sept. 12 in California, which resulted in the deaths of 25 and injuries to more than 135 Metrolink passengers.

Suresh Badugu; Anoosha Movva

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

Parallel Lumigraph Reconstruction PeterPike Sloan  

E-Print Network (OSTI)

Lake City, UT 84112 hansen@cs.utah.edu Abstract This paper presents three techniques for reconstructing/1056 Redmond WA 98052 ppsloan@microsoft.com Charles Hansen Dept of Computer Science University of Utah Salt

Utah, University of

62

Neutrino energy reconstruction problems and neutrino oscillations  

E-Print Network (OSTI)

We discuss the accuracy of the usual procedure for neutrino energy reconstruction which is based on the quasielastic kinematics. Our results are described in terms of a probability distribution for a real neutrino energy value. Several factors are responsible of the deviations from the reconstructed value. The main one is the multinucleon component of the neutrino interaction which in the case of Cherenkov detectors enters as a quasielastic cross section, increasing the mean neutrino energy which can differ appreciably from the reconstructed value. As an application we derive, for excess electron events attributed to the conversion of muon neutrinos, the true neutrino energy distribution based on the experimental one which is given in terms of the reconstructed value. The result is a reshaping effect. For MiniBooNE the low energy peak is suppressed and shifted at higher energies, which may influence the interpretation in terms of oscillation. For T2K at the Super Kamiokande far detector the reshaping translat...

Martini, M; Chanfray, G

2012-01-01T23:59:59.000Z

63

Santo Antonio de Tanna? story and reconstruction  

E-Print Network (OSTI)

SANTO ANTONIO DE TANNÁ: STORY AND RECONSTRUCTION A Thesis by TIAGO MIGUEL FRAGA Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF ARTS... December 2007 Major Subject: Anthropology SANTO ANTONIO DE TANNÁ: STORY AND RECONSTRUCTION A Thesis by TIAGO MIGUEL FRAGA Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

Fraga, Tiago Miguel

2008-10-10T23:59:59.000Z

64

Position feedback control system  

DOE Patents (OSTI)

Disclosed is a system and method for independently evaluating the spatial positional performance of a machine having a movable member, comprising an articulated coordinate measuring machine comprising: a first revolute joint; a probe arm, having a proximal end rigidly attached to the first joint, and having a distal end with a probe tip attached thereto, wherein the probe tip is pivotally mounted to the movable machine member; a second revolute joint; a first support arm serially connecting the first joint to the second joint; and coordinate processing means, operatively connected to the first and second revolute joints, for calculating the spatial coordinates of the probe tip; means for kinematically constraining the articulated coordinate measuring machine to a working surface; and comparator means, in operative association with the coordinate processing means and with the movable machine, for comparing the true position of the movable machine member, as measured by the true position of the probe tip, with the desired position of the movable machine member.

Bieg, Lothar F. (Albuquerque, NM); Jokiel, Jr., Bernhard (Albuquerque, NM); Ensz, Mark T. (Albuquerque, NM); Watson, Robert D. (Tijeras, NM)

2003-01-01T23:59:59.000Z

65

Position Description Position Title: Sustainability Student Club Alliance Facilitator  

E-Print Network (OSTI)

Position Description Position Title: Sustainability Student Club Alliance Facilitator Department/volunteer opportunity for University of Calgary students. POSITION DESCRIPTION The Alliance Facilitator is responsible for coordinating and facilitating the monthly meetings of the Sustainability Student Club Alliance. The Alliance

de Leon, Alex R.

66

MISUSE OF POSITION  

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

MISUSE OF POSITION MISUSE OF POSITION USE OF NONPUBLIC INFORMATION. Employees shall not engage in a financial transaction using nonpublic information, or allow the improper use of nonpublic information to further their own private interests or those of another. Information that is "nonpublic" includes information an employee knows or reasonably should know: Is routinely exempt from disclosure under the Freedom of Information Act or protected from disclosure by statute, including proprietary and Trade Secret information; Is designated by an agency as confidential; or Has not actually been disseminated to the general public and is not authorized to be made available to the public on request. Employees who have access to financial market sensitive information must not make this

67

Energy's and amplitudes' positivity  

E-Print Network (OSTI)

In QFT, the null energy condition (NEC) for a classical field configuration is usually associated with that configuration's stability against small perturbations, and with the sub-luminality of these. Here, we exhibit an effective field theory that allows for stable NEC-violating solutions with exactly luminal excitations only. The model is the recently introduced `galileon', or more precisely its conformally invariant version. We show that the theory's low-energy S-matrix obeys standard positivity as implied by dispersion relations. However we also show that if the relevant NEC-violating solution is inside the effective theory, then other (generic) solutions allow for superluminal signal propagation. While the usual association between sub-luminality and positivity is not obeyed by our example, that between NEC and sub-luminality is, albeit in a less direct way than usual.

Alberto Nicolis; Riccardo Rattazzi; Enrico Trincherini

2012-09-17T23:59:59.000Z

68

Three-dimensional track reconstruction for directional Dark Matter detection  

SciTech Connect

Directional detection of Dark Matter is a promising search strategy. However, to perform such detection, a given set of parameters has to be retrieved from the recoiling tracks: direction, sense and position in the detector volume. In order to optimize the track reconstruction and to fully exploit the data of forthcoming directional detectors, we present a likelihood method dedicated to 3D track reconstruction. This new analysis method is applied to the MIMAC detector. It requires a full simulation of track measurements in order to compare real tracks to simulated ones. We conclude that a good spatial resolution can be achieved, i.e. sub-mm in the anode plane and cm along the drift axis. This opens the possibility to perform a fiducialization of directional detectors. The angular resolution is shown to range between 20° to 80°, depending on the recoil energy, which is however enough to achieve a high significance discovery of Dark Matter. On the contrary, we show that sense recognition capability of directional detectors depends strongly on the recoil energy and the drift distance, with small efficiency values (50%–70%). We suggest not to consider this information either for exclusion or discovery of Dark Matter for recoils below 100 keV and then to focus on axial directional data.

Billard, J.; Mayet, F.; Santos, D., E-mail: billard@lpsc.in2p3.fr, E-mail: mayet@lpsc.in2p3.fr, E-mail: santos@lpsc.in2p3.fr [Laboratoire de Physique Subatomique et de Cosmologie, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut Nationale Polytechnique de Grenoble, 53 rue des Martyrs, Grenoble (France)

2012-04-01T23:59:59.000Z

69

Track and vertex reconstruction: From classical to adaptive methods  

SciTech Connect

This paper reviews classical and adaptive methods of track and vertex reconstruction in particle physics experiments. Adaptive methods have been developed to meet the experimental challenges at high-energy colliders, in particular, the CERN Large Hadron Collider. They can be characterized by the obliteration of the traditional boundaries between pattern recognition and statistical estimation, by the competition between different hypotheses about what constitutes a track or a vertex, and by a high level of flexibility and robustness achieved with a minimum of assumptions about the data. The theoretical background of some of the adaptive methods is described, and it is shown that there is a close connection between the two main branches of adaptive methods: neural networks and deformable templates, on the one hand, and robust stochastic filters with annealing, on the other hand. As both classical and adaptive methods of track and vertex reconstruction presuppose precise knowledge of the positions of the sensitive detector elements, the paper includes an overview of detector alignment methods and a survey of the alignment strategies employed by past and current experiments.

Strandlie, Are; Fruehwirth, Rudolf [Gjoevik University College, P.O. Box 191, N-2802 Gjoevik (Norway); Institute of High Energy Physics of the Austrian Academy of Sciences, Nikolsdorfer Gasse 18, A-1050 Wien (Austria)

2010-04-15T23:59:59.000Z

70

Bioinformatics Computing Consultant Position Available  

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

Bioinformatics Computing Consultant Position Available Bioinformatics Computing Consultant Position Available October 31, 2011 by Katie Antypas (0 Comments) NERSC and the Joint...

71

Jet Reconstruction in Heavy Ion Collisions  

E-Print Network (OSTI)

Measurements of strong suppression of inclusive hadron distributions and di-hadron correlations at high $p_{T}$, while providing evidence for partonic energy loss, also suffer from geometric biases due to the competition of energy loss and fragmentation. The measurements of fully reconstructed jets is expected to lack these biases as the energy flow is measured independently of the fragmentation details. In this article, we review the recent results from the heavy ion collisions collected by the STAR experiment at RHIC on direct jet reconstruction utilizing the modern sequential recombination and cone jet reconstruction algorithms together with their background subtraction techniques. In order to assess the jet reconstruction biases a comparison with the jet cross section measurement in $\\sqrt{s}=200$ GeV p+p collisions scaled by the number of binary nucleon-nucleon collisions to account for nuclear geometric effects is performed. Comparison of the inclusive jet cross section obtained in central Au+Au events with that in $p+p$ collisions, published previously by STAR, suggests that unbiased jet reconstruction in the complex heavy ion environment indeed may be possible.

Sevil Salur

2009-05-12T23:59:59.000Z

72

Kinetic equilibrium reconstruction on EAST tokamak  

Science Journals Connector (OSTI)

Plasma equilibrium is an important basis for tokamak plasma research. The equilibrium reconstructed from experimental diagnostics is a key element for experiments analysis and for theory study. The kinetic equilibrium has the profiles information (current or safety factor profile, kinetic pressure profile), which are key issues for some studies of physics. With the constraints of magnetic measurements, pressure profile and edge current profile, we achieved the first reconstructed kinetic equilibrium on EAST tokamak. The pressure and edge current profiles are based on the diagnostics and theoretical bootstrap current model. The kinetic equilibrium has the pedestal structure for H-mode plasma, which the magnetic reconstruction missed. This improved equilibrium is an important basis for some experimental analysis and theory studies on EAST.

G Q Li; Q L Ren; J P Qian; L L Lao; S Y Ding; Y J Chen; Z X Liu; B Lu; Q Zang

2013-01-01T23:59:59.000Z

73

Multi-threaded Event Reconstruction with JANA  

SciTech Connect

The C++ reconstruction framework JANA has been written to support the next generation of Nuclear Physics experiments at Jefferson Lab in anticipation of the 12GeV upgrade. The JANA framework was designed to allow multi-threaded event processing with a minimal impact on developers of reconstruction software. As we enter the multi-core (and soon many-core) era, thread-enabled code will become essential to utilizing the full processor power available without invoking the logistical overhead of managing many individual processes. Event-based reconstruction lends itself naturally to mutli-threaded processing. Emphasis will be placed on the multi-threading features of the framework. Test results of the scaling of event processing rates with number of threads are presented.

David Lawrence

2007-09-01T23:59:59.000Z

74

Robust statistical reconstruction for charged particle tomography  

DOE Patents (OSTI)

Systems and methods for charged particle detection including statistical reconstruction of object volume scattering density profiles from charged particle tomographic data to determine the probability distribution of charged particle scattering using a statistical multiple scattering model and determine a substantially maximum likelihood estimate of object volume scattering density using expectation maximization (ML/EM) algorithm to reconstruct the object volume scattering density. The presence of and/or type of object occupying the volume of interest can be identified from the reconstructed volume scattering density profile. The charged particle tomographic data can be cosmic ray muon tomographic data from a muon tracker for scanning packages, containers, vehicles or cargo. The method can be implemented using a computer program which is executable on a computer.

2013-10-08T23:59:59.000Z

75

Three-dimensional Reconstruction of Dust Particle Trajectories in the NSTX  

SciTech Connect

Highly mobile incandescent dust particles are routinely observed on NSTX using two fast cameras operating in the visible region. An analysis method to reconstruct dust particle trajectories in space using two fast cameras is presented in this paper. Position accuracies of a few millimeters depending on the particle's location have been achieved and particle velocities between 10 and 200 m/s have been observed. 2008 American Institute of Physics. __________________________________________________

W.U. Boeglin, A.L. Roquemore, and R. Maqueda

2009-03-06T23:59:59.000Z

76

Three-dimensional reconstruction of dust particle trajectories in the NSTX  

SciTech Connect

Highly mobile incandescent dust particles are routinely observed on NSTX using two fast cameras operating in the visible region. An analysis method to reconstruct dust particle trajectories in space using two fast cameras is presented in this paper. Position accuracies of a few millimeters depending on the particle's location have been achieved and particle velocities between 10 and 200 m/s have been observed.

Boeglin, W. U. [Physics Department, Florida International University, 11200 SW 8th Street, Miami, Florida 33199 (United States); Roquemore, A. L. [Princeton Plasma Physics Laboratory, James Forrestal Campus, Rt. 1 N at Sayre Dr., Princeton, New Jersey 08543 (United States); Maqueda, R. [NOVA Photonics, P.O. Box 451, Princeton, New Jersey 08543-0451 (United States)

2008-10-15T23:59:59.000Z

77

Application of 2-dimensional analytic signals with single-quadrant spectra for processing of SAFT-reconstructed images  

Science Journals Connector (OSTI)

The Synthetic Aperture Focusing Technique (SAFT) is an algorithm applied in non-destructive ultrasonic testing which provides an image of flaws within a specimen. The image is reconstructed from A-scans measured at different positions. Reliable evaluation ... Keywords: Analytic signal, Complex signal, Image processing, SAFT image

Christian Höhne; Rainer Boehm; Jens Prager

2014-10-01T23:59:59.000Z

78

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":""}]}

79

Money Reconstructed: Argentina and Brazil after Hyperinflation  

E-Print Network (OSTI)

Money Reconstructed: Argentina and Brazil after Hyperinflation Jérôme Sgard (Sciences Po / CERI high inflation, money's dual function as a unit of account and a unit of payment are split attempt to rebuild a single, national money. Whereas returning to peso pricing on domestic markets proved

Paris-Sud XI, Université de

80

Wood River Levee Reconstruction, Madison County, IL  

E-Print Network (OSTI)

Wood River Levee Reconstruction, Madison County, IL 25 October 2006 Abstract: The recommended plan provides for flood damage reduction and restores the original degree of protection of the Wood River Levee-federal sponsor is the Wood River Drainage and Levee District. The Wood River Levee System was authorized

US Army Corps of Engineers

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

Curvature Minimization for Surface Reconstruction with Features  

E-Print Network (OSTI)

Sciences, Nanyang Technological University, Singapore 637371. {shij0004,wanm0003}@e.ntu.edu.sg, {xctai,desheng}@ntu indicate the robustness and effectiveness of the method. 1 Introduction Reconstructing a surface from in [35] and its variants prove the effectiveness of this methodology. The most popular regularization #12

Soatto, Stefano

82

Motion reconstruction using sparse accelerometer data  

Science Journals Connector (OSTI)

The development of methods and tools for the generation of visually appealing motion sequences using prerecorded motion capture data has become an important research area in computer animation. In particular, data-driven approaches have been used for ... Keywords: Motion capture, acceleration data, motion reconstruction, motion retrieval, online control

Jochen Tautges; Arno Zinke; Björn Krüger; Jan Baumann; Andreas Weber; Thomas Helten; Meinard Müller; Hans-Peter Seidel; Bernd Eberhardt

2011-05-01T23:59:59.000Z

83

Video summarization via minimum sparse reconstruction  

Science Journals Connector (OSTI)

Abstract The rapid growth of video data demands both effective and efficient video summarization methods so that users are empowered to quickly browse and comprehend a large amount of video content. In this paper, we formulate the video summarization task with a novel minimum sparse reconstruction (MSR) problem. That is, the original video sequence can be best reconstructed with as few selected keyframes as possible. Different from the recently proposed convex relaxation based sparse dictionary selection method, our proposed method utilizes the true sparse constraint L0 norm, instead of the relaxed constraint L 2 , 1 norm, such that keyframes are directly selected as a sparse dictionary that can well reconstruct all the video frames. An on-line version is further developed owing to the real-time efficiency of the proposed MSR principle. In addition, a percentage of reconstruction (POR) criterion is proposed to intuitively guide users in obtaining a summary with an appropriate length. Experimental results on two benchmark datasets with various types of videos demonstrate that the proposed methods outperform the state of the art.

Shaohui Mei; Genliang Guan; Zhiyong Wang; Shuai Wan; Mingyi He; David Dagan Feng

2015-01-01T23:59:59.000Z

84

Kuwaiti reconstruction project unprecedented in size, complexity  

SciTech Connect

There had been no challenge like it: a desert emirate ablaze; its main city sacked; the economically crucial oil industry devastated; countryside shrouded in smoke from oil well fires and littered with unexploded ordnance, disabled military equipment, and unignited crude oil. Like the well-documented effort that brought 749 burning wells under control in less than 7 months, Kuwaiti reconstruction had no precedent. Unlike the firefight, reconstruction is no-where complete. It nevertheless has placed two of three refineries back on stream, restored oil production to preinvasion levels, and repaired or rebuilt 17 of 26 oil field gathering stations. Most of the progress has come since the last well fire went out on Nov. 6, 1991. Expatriates in Kuwait since the days of Al-Awda- the return,' in Arabic- attribute much of the rapid progress under Al-Tameer- the reconstruction'- to decisions and preparations made while the well fires still raged. The article describes the planning for Al-Awda, reentering the country, drilling plans, facilities reconstruction, and special problems.

Tippee, B.

1993-03-15T23:59:59.000Z

85

Neutrino energy reconstruction problems and neutrino oscillations  

Science Journals Connector (OSTI)

We discuss the accuracy of the usual procedure for neutrino energy reconstruction which is based on the quasielastic kinematics. Our results are described in terms of a probability distribution for a real neutrino energy value. Several factors are responsible for the deviations from the reconstructed value. The main one is the multinucleon component of the neutrino interaction which in the case of Cherenkov detectors enters as a quasielastic cross section, increasing the mean neutrino energy which can differ appreciably from the reconstructed value. As an application we derive, for excess electron events attributed to the conversion of muon neutrinos, the true neutrino energy distribution based on the experimental one which is given in terms of the reconstructed value. The result is a reshaping effect. For MiniBooNE the low energy peak is suppressed and shifted at higher energies, which may influence the interpretation in terms of oscillation. For T2K at the Super Kamiokande far detector the reshaping translates into a narrowing of the energy distribution.

M. Martini; M. Ericson; G. Chanfray

2012-05-21T23:59:59.000Z

86

Neutrino energy reconstruction problems and neutrino oscillations  

E-Print Network (OSTI)

We discuss the accuracy of the usual procedure for neutrino energy reconstruction which is based on the quasielastic kinematics. Our results are described in terms of a probability distribution for a real neutrino energy value. Several factors are responsible of the deviations from the reconstructed value. The main one is the multinucleon component of the neutrino interaction which in the case of Cherenkov detectors enters as a quasielastic cross section, increasing the mean neutrino energy which can differ appreciably from the reconstructed value. As an application we derive, for excess electron events attributed to the conversion of muon neutrinos, the true neutrino energy distribution based on the experimental one which is given in terms of the reconstructed value. The result is a reshaping effect. For MiniBooNE the low energy peak is suppressed and shifted at higher energies, which may influence the interpretation in terms of oscillation. For T2K at the Super Kamiokande far detector the reshaping translates into a narrowing of the energy distribution.

M. Martini; M. Ericson; G. Chanfray

2012-02-21T23:59:59.000Z

87

Reconstruction in tomography with diffracting sources  

E-Print Network (OSTI)

Homogeneous Model . . . . . . . . . . . . . . . . . . . 22 III LIMITED-VIEW THERMOACOUSTIC TOMOGRAPHY1 . . . 24 A. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . 24 1. Analysis of Singularities in Circular Radon Trans- form and Limited-view TAT... . . . . . . . . . . . . . . 26 a. Circular Radon Transform . . . . . . . . . . . . . 26 b. TAT . . . . . . . . . . . . . . . . . . . . . . . . . 27 c. Reconstruction Methods . . . . . . . . . . . . . . 30 2. Numerical Implementation . . . . . . . . . . . . . . . 35 viii CHAPTER...

Xu, Yuan

2005-02-17T23:59:59.000Z

88

Limited View Angle Iterative CT Reconstruction  

E-Print Network (OSTI)

;Some Prior Literature in Limited View Tomography CT with limited-angle data and few views IRR algorithm Iterative Reconstruction-Reprojection (IRR) : An Algorithm for Limited Data Cardiac- Computed-views and limited-angle data in divergent-beam CT by E. Y. Sidky, CM Kao, and X. Pan (2006) Few-View Projection

89

Monte Carlo event reconstruction implemented with artificial neural networks  

E-Print Network (OSTI)

I implemented event reconstruction of a Monte Carlo simulation using neural networks. The OLYMPUS Collaboration is using a Monte Carlo simulation of the OLYMPUS particle detector to evaluate systematics and reconstruct ...

Tolley, Emma Elizabeth

2011-01-01T23:59:59.000Z

90

Nanoparticle-induced surface reconstruction of phospholipid membranes  

E-Print Network (OSTI)

Nanoparticle-induced surface reconstruction of phospholipid membranes Bo Wanga , Liangfang Zhangb, 2008) The nonspecific adsorption of charged nanoparticles onto single- component phospholipid bilayers surface reconstruction at the points where nanoparticles adsorb. Nanoparticles of negative charge induce

Zhang, Liangfang

91

Light energy matching method in high-resolution image reconstruction  

Science Journals Connector (OSTI)

Many approaches for high-resolution image reconstruction have been proposed in some literatures. One of the most commonly ways is to reconstruct a high-resolution image from a...

Wang, Ling; Xu, Zhihai; Feng, Huajun; Zhang, Ping

2003-01-01T23:59:59.000Z

92

Global registration of dynamic range scans for articulated model reconstruction  

Science Journals Connector (OSTI)

We present the articulated global registration algorithm to reconstruct articulated 3D models from dynamic range scan sequences. This new algorithm aligns multiple range scans simultaneously to reconstruct a full 3D model from the geometry of these scans. ... Keywords: Range scanning, animation reconstruction, articulated model, nonrigid registration

Will Chang; Matthias Zwicker

2011-05-01T23:59:59.000Z

93

3D RECONSTRUCTION FROM A SINGLE IMAGE Diego Rother  

E-Print Network (OSTI)

3D RECONSTRUCTION FROM A SINGLE IMAGE By Diego Rother and Guillermo Sapiro IMA Preprint Series. 1 3D Reconstruction from a Single Image Diego Rother and Guillermo Sapiro Abstract-- A probabilistic framework for 3D object reconstruction from a single image is introduced in this work. First

94

Faculty Positions Heat Transfer and  

E-Print Network (OSTI)

Faculty Positions Heat Transfer and Thermal/Energy Sciences Naval Postgraduate School Monterey-track faculty position at the assistant professor level in the areas of Heat Transfer and Thermal/Fluid Sciences

95

Spectral conditions for positive maps  

E-Print Network (OSTI)

We provide a partial classification of positive linear maps in matrix algebras which is based on a family of spectral conditions. This construction generalizes celebrated Choi example of a map which is positive but not completely positive. It is shown how the spectral conditions enable one to construct linear maps on tensor products of matrix algebras which are positive but only on a convex subset of separable elements. Such maps provide basic tools to study quantum entanglement in multipartite systems.

Dariusz Chruscinski; Andrzej Kossakowski

2008-09-29T23:59:59.000Z

96

Seattle University Recreation Position Description  

E-Print Network (OSTI)

Seattle University Recreation Position Description Title: Marketing Manager Date: 7/23/2013 Purpose of Position To manage and coordinate all marketing efforts for University Recreation with primary;Seattle University Recreation Position Description Title: Marketing Manager Date: 7/23/2013 Minimum

Carter, John

97

Muon energy reconstruction in the ANTARES detector  

Science Journals Connector (OSTI)

The energy reconstruction of both neutrino-induced muons from neutrino interactions in the vicinity of the detector and of muons from cosmic ray air showers contributes indispensable information for a broad range of physics analyses, e.g. by increasing the sensitivity in neutrino point source searches or in offering access to observables such as the atmospheric neutrino spectrum. Currently, four energy reconstruction methods are implemented in the ANTARES data analysis framework, ranging from estimates based on photon counting and the total charge deposited in the detector to methods based on probability density functions and Artificial Neural Networks. These four methods, their performance and systematic studies of the energy resolution capabilities of the ANTARES detector are presented.

Jutta Schnabel

2013-01-01T23:59:59.000Z

98

Hanford Environmental Dose Reconstruction Project Monthly Report  

SciTech Connect

This monthly report summarizes the technical progress and project status for the Hanford Environmental Dose Reconstruction (HEDR) Project being conducted at the Pacific Northwest Laboratory (PNL) under the direction of a Technical Steering Panel (TSP). The TSP is composed of experts in numerous technical fields related to this project and represents the interests of the public. The objective of the Hanford Environmental Dose Reconstruction Project is to estimate the radiation doses that populations could have received from nuclear operations at Hanford since 1944. The project is being managed and conducted by the Pacific Northwest Laboratory (PNL) under the direction of an independent Technical Steering Panel (TSP). 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, and environmental pathways and dose estimates. 3 figs., 3 tabs.

Finch, S.M. (comp.)

1990-10-01T23:59:59.000Z

99

Precise On-line Position Measurement for Particle Therapy  

E-Print Network (OSTI)

An on-line beam position monitoring and regular beam stability tests are of utmost importance for the Quality Assurance (QA) of the patient treatment at any particle therapy facility. The Gantry${0.5 mm}2$ at the Paul Scherrer Institute uses a strip ionization chamber for the on-line beam position verification. The design of the strip chamber placed in the beam in front of the patient allows for a small beam penumbra in order to achieve a high-quality lateral beam delivery. The detector granularity and the low noise allow the reconstruction of the signals offered by Gantry${0.5 mm}2$ with a precision of about 0.1 mm. The frond-end electronics and the whole data processing sequence have been optimized for minimizing the dead time between the beam applications to about 2 ms: the charge collection is performed in about 1 ms, read-out takes place in 100 $\\mu$s while data verification and logging are completed in less than 1 ms. The sub-millimeter precision of the lateral reconstruction allows the dose inhomogenei...

Actis, O; König, S

2014-01-01T23:59:59.000Z

100

Open Positions in Marvell Software Engineer Student position  

E-Print Network (OSTI)

: Acting as SW engineer responsible for parts of the development cycles (from design to integration1 Open Positions in Marvell Software Engineer ­ Student position Description Software Engineer tools running in Android environment for on-target testing Qualifications: · Third year students

Pinsky, Ross

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

Seattle University Recreation Position Description  

E-Print Network (OSTI)

Seattle University Recreation Position Description Title: University Recreation Operations Manager Date: 8/3/2012 Purpose of the Position The University Recreation Operations Manager assists walkthroughs of the Fitness Center · Provide on-site staff supervision in recreation facilities · Assist

Carter, John

102

Seattle University Recreation Position Description  

E-Print Network (OSTI)

Seattle University Recreation Position Description Title: Marketing Manager Date: 8/6/12 Purpose of Position To manage and coordinate all marketing efforts for University Recreation with primary Content Development · Info boards and frames · Promotional materials #12;Seattle University Recreation

Carter, John

103

Seattle University Recreation Position Description  

E-Print Network (OSTI)

Seattle University Recreation Position Description Title: University Recreation Office Manager Date: 8/2/12 Purpose of the Position The University Recreation Office Manager is an integral part of the University Recreation department and will work with the Assistant Director of University Recreation

Carter, John

104

Seattle University Recreation Position Description  

E-Print Network (OSTI)

Seattle University Recreation Position Description Title: University Recreation Office Manager Date: 7/23/2013 Purpose of the Position The University Recreation Office Manager is an integral part of the University Recreation department and will work with the Assistant Director of University Recreation

Carter, John

105

Seattle University Recreation Position Description  

E-Print Network (OSTI)

Seattle University Recreation Position Description Title: University Recreation Operations Manager Date: 7/23/2013 Purpose of the Position The University Recreation Operations Manager assists walkthroughs of the Fitness Center · Provide on-site staff supervision in recreation facilities · Assist

Carter, John

106

Automated 3D reconstruction of neuronal structures from serial sections  

E-Print Network (OSTI)

D Data Transfer 16 E Preliminary Filtering VI DATA RECONSTRUCTION A Overview of Reconstruction 18 B The Recon System 18 VII SECTION SEGMENTATION 22 A Feature Detection and Isolation 22 B Creation and Storage of ROIs . C Data Compression 24... OF NEURONS AND FIBERS 36 X JUNCTION AND BEND DETECTION. 38 A Junction Classi6cation . 38 B Models of Dendritic Bifurcation 41 XI RESULTS 45 A Reconstruction of Simulated Data 45 B Overview of Visualization Procedure 50 XII CONCLUSIONS 52 A Parallel...

Burton, Brent P

1999-01-01T23:59:59.000Z

107

Rough surface reconstruction for ultrasonic NDE simulation  

SciTech Connect

The reflection of ultrasound from rough surfaces is an important topic for the NDE of safety-critical components, such as pressure-containing components in power stations. The specular reflection from a rough surface of a defect is normally lower than it would be from a flat surface, so it is typical to apply a safety factor in order that justification cases for inspection planning are conservative. The study of the statistics of the rough surfaces that might be expected in candidate defects according to materials and loading, and the reflections from them, can be useful to develop arguments for realistic safety factors. This paper presents a study of real rough crack surfaces that are representative of the potential defects in pressure-containing power plant. Two-dimensional (area) values of the height of the roughness have been measured and their statistics analysed. Then a means to reconstruct model cases with similar statistics, so as to enable the creation of multiple realistic realizations of the surfaces, has been investigated, using random field theory. Rough surfaces are reconstructed, based on a real surface, and results for these two-dimensional descriptions of the original surface have been compared with those from the conventional model based on a one-dimensional correlation coefficient function. In addition, ultrasonic reflections from them are simulated using a finite element method.

Choi, Wonjae; Shi, Fan; Lowe, Michael J. S. [UK Research Centre in NDE, Imperial College, London SW7 2AZ (United Kingdom); Skelton, Elizabeth A.; Craster, Richard V. [Department of Mathematics, Imperial College, London SW7 2AZ (United Kingdom)

2014-02-18T23:59:59.000Z

108

Positive Energy | Open Energy Information  

Open Energy Info (EERE)

Positive Energy Positive Energy Jump to: navigation, search Logo: Positive Energy Name Positive Energy Address 3201 Calle Marie Place Santa Fe, New Mexico Zip 87507 Sector Solar Product Renewable energy products and services Phone number 505-424-1112 Website http://positiveenergysolar.net Coordinates 35.6869752°, -105.937799° 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":35.6869752,"lon":-105.937799,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

109

Seattle University Recreation Position Description  

E-Print Network (OSTI)

Seattle University Recreation Position Description Title: University Recreation Fitness Center Recreation in the William F. Eisiminger Fitness Center and Archbishop Connolly Complex. Primary Duties all University Recreation and Fitness Center Policies · Educate members on proper Fitness Center

Carter, John

110

Seattle University Recreation Position Description  

E-Print Network (OSTI)

Seattle University Recreation Position Description Title: Connolly Complex Lifeguard Date: 7/or participants by enforcing the policies and procedures of the University Recreation Department. Primary Duties efficient and competent manner to the satisfaction of the Assistant Director of University Recreation

Carter, John

111

SIMPLOT LIVESTOCK COMPANY POSITION ANNOUNCEMENT  

E-Print Network (OSTI)

SIMPLOT LIVESTOCK COMPANY POSITION ANNOUNCEMENT Job description: Manage the Research, and cow/calf health and performance records Software prototype development and testing for data Experimental design and analysis Protocol development, writing and compliance Budget development

Maxwell, Bruce D.

112

Autonomous adaptive acoustic relay positioning  

E-Print Network (OSTI)

We consider the problem of maximizing underwater acoustic data transmission by adaptively positioning an autonomous mobile relay so as to learn and exploit spatial variations in channel performance. The acoustic channel ...

Cheung, Mei Yi, S.M. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

113

The Position of the Sun  

E-Print Network (OSTI)

The appearance of a surface depends dramatically on how it is illuminated. In order to interpret properly satellite and aerial imagery, it is necessary to know the position of the sun in the sky. This is particularly ...

Horn, Berthold K.P.

114

ANNOUNCEMENT NUCLEAR ENGINEERING FACULTY POSITION  

E-Print Network (OSTI)

ANNOUNCEMENT NUCLEAR ENGINEERING FACULTY POSITION The Department of Nuclear Engineering undergraduate and graduate courses in general nuclear engineering. The Knoxville campus of the University, Associate Professor of Nuclear Engineering; The University of Tennessee; 312 Pasqua Engineering Bldg

Tennessee, University of

115

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

116

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

117

Genes order and phylogenetic reconstruction: application to #Proteobacteria  

E-Print Network (OSTI)

@lacim.uqam.ca Abstract. We study the problem of phylogenetic reconstruction based on gene order for whole genomes. We define three genomic distances between whole genomes represented by signed sequences, based­ logeny for a group of 12 complete genomes of #­Proteobacteria. Keywords: Phylogenetic reconstruction

Fertin, Guillaume

118

Genes order and phylogenetic reconstruction: application to -Proteobacteria  

E-Print Network (OSTI)

@lacim.uqam.ca Abstract. We study the problem of phylogenetic reconstruction based on gene order for whole genomes. We define three genomic distances between whole genomes represented by signed sequences, based- logeny for a group of 12 complete genomes of -Proteobacteria. Keywords: Phylogenetic reconstruction

Fertin, Guillaume

119

REAL-TIME EQUILIBRIUM RECONSTRUCTION IN A TOKAMAK  

E-Print Network (OSTI)

REAL-TIME EQUILIBRIUM RECONSTRUCTION IN A TOKAMAK J. Blum, C. Boulbe and B. Faugeras Laboratoire J reconstruction of the plasma current density in a Tokamak and of its equilibrium. The problem consists equilibrium of a plasma in a Tokamak. The experimental measurements that enable this identification

Paris-Sud XI, Université de

120

A Model-Based Method For Building Reconstruction Konrad Schindler  

E-Print Network (OSTI)

A Model-Based Method For Building Reconstruction Konrad Schindler Graz University of Technology with predefined shape templates in or- der to automatically recover a CAD-like model of the build- ing surface specifically, the building model delivered by a dig- ital reconstruction system should be a structured surface

Schindler, Konrad

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

NORTHWESTERN UNIVERSITY Reconstructions on Strontium Titanate (110) Surfaces  

E-Print Network (OSTI)

NORTHWESTERN UNIVERSITY Reconstructions on Strontium Titanate (110) Surfaces at Various Annealing August 2011 #12;1 Abstract Reconstructions on Strontium Titanate (110) Surfaces at Various Annealing Conditions Alicia Loon Strontium titanate (SrTiO3) is a perovskite complex metal oxide used in many different

Shull, Kenneth R.

122

Fracture aperture reconstruction and determination of hydrological properties: a  

E-Print Network (OSTI)

Fracture aperture reconstruction and determination of hydrological properties: a case study for fracture aperture reconstruction. The rst one is a correlation technique that estimates the normal aper techniques are applied to discontinuities extracted from a core drilled down to 20 m in a fractured marl

Toussaint, Renaud

123

Total variation based Fourier reconstruction and regularization for computer tomography  

E-Print Network (OSTI)

of the reconstruted image. Insufficiency of data may be caused by the undersampling of projections, by the limitedTotal variation based Fourier reconstruction and regularization for computer tomography Xiao. Index Terms-- Computer tomography, reconstruction, regular- ization, iterative method, Fourier method

Zhang, Xiaoqun

124

Photo-Consistent Reconstruction of Semitransparent Scenes by  

E-Print Network (OSTI)

to a severely underconstrained computerized tomography problem, for which traditional methods break down. Our--Semitransparent scenes, fire, volumetric reconstruction, 3D reconstruction, computerized tomography, view synthesis, image-based modeling, image-based rendering. Ã? 1 INTRODUCTION THE computational modeling of physical

Jepson, Allan D.

125

Nested Loop Algorithm for Parallel Model Based Iterative Reconstruction  

E-Print Network (OSTI)

Nested Loop Algorithm for Parallel Model Based Iterative Reconstruction Zhou Yu, Lin Fu, Debashish. In this paper, we propose a fast converging simultaneous-update algorithm using a nested loop structure tomography, iterative reconstruction, nested loop, preconditioner. I. INTRODUCTION Recent applications

126

Quantifying dose to the reconstructed breast: Can we adequately treat?  

SciTech Connect

To evaluate how immediate reconstruction (IR) impacts postmastectomy radiotherapy (PMRT) dose distributions to the reconstructed breast (RB), internal mammary nodes (IMN), heart, and lungs using quantifiable dosimetric end points. 3D conformal plans were developed for 20 IR patients, 10 autologous reconstruction (AR), and 10 expander-implant (EI) reconstruction. For each reconstruction type, 5 right- and 5 left-sided reconstructions were selected. Two plans were created for each patient, 1 with RB coverage alone and 1 with RB + IMN coverage. Left-sided EI plans without IMN coverage had higher heart Dmean than left-sided AR plans (2.97 and 0.84 Gy, p = 0.03). Otherwise, results did not vary by reconstruction type and all remaining metrics were evaluated using a combined AR and EI dataset. RB coverage was adequate regardless of laterality or IMN coverage (Dmean 50.61 Gy, D95 45.76 Gy). When included, IMN Dmean and D95 were 49.57 and 40.96 Gy, respectively. Mean heart doses increased with left-sided treatment plans and IMN inclusion. Right-sided treatment plans and IMN inclusion increased mean lung V{sub 20}. Using standard field arrangements and 3D planning, we observed excellent coverage of the RB and IMN, regardless of laterality or reconstruction type. Our results demonstrate that adequate doses can be delivered to the RB with or without IMN coverage.

Chung, Eugene; Marsh, Robin B.; Griffith, Kent A.; Moran, Jean M. [Department of Radiation Oncology, University of Michigan, Ann Arbor, MI (United States); Pierce, Lori J., E-mail: ljpierce@umich.edu [Department of Radiation Oncology, University of Michigan, Ann Arbor, MI (United States)

2013-04-01T23:59:59.000Z

127

A neural network optimization-based method of image reconstruction from projections  

Science Journals Connector (OSTI)

The image reconstruction from projections problem remains the primary concern for scientists in area of computer tomography. The presented paper describes a new approach to the reconstruction problem using a recurrent neural network. The reconstruction ...

Robert Cierniak

2010-03-01T23:59:59.000Z

128

Hanford Environmental Dose Reconstruction Project monthly report  

SciTech Connect

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.) [comps.

1992-09-01T23:59:59.000Z

129

Reconstructing the Star Formation Histories of Galaxies  

E-Print Network (OSTI)

We present a methodological study to find out how far back and to what precision star formation histories of galaxies can be reconstructed from CMDs, from integrated spectra and Lick indices, and from integrated multi-band photometry. Our evolutionary synthesis models GALEV allow to describe the evolution of galaxies in terms of all three approaches and we have assumed typical observational uncertainties for each of them and then investigated to what extent and accuracy different star formation histories can be discriminated. For a field in the LMC bar region with both a deep CMD from HST observations and a trailing slit spectrum across exactly the same field of view we could test our modelling results against real data.

Uta Fritze; Thomas Lilly

2007-01-15T23:59:59.000Z

130

3D reconstruction of tensors and vectors  

SciTech Connect

Here we have developed formulations for the reconstruction of 3D tensor fields from planar (Radon) and line-integral (X-ray) projections of 3D vector and tensor fields. Much of the motivation for this work is the potential application of MRI to perform diffusion tensor tomography. The goal is to develop a theory for the reconstruction of both Radon planar and X-ray or line-integral projections because of the flexibility of MRI to obtain both of these type of projections in 3D. The development presented here for the linear tensor tomography problem provides insight into the structure of the nonlinear MRI diffusion tensor inverse problem. A particular application of tensor imaging in MRI is the potential application of cardiac diffusion tensor tomography for determining in vivo cardiac fiber structure. One difficulty in the cardiac application is the motion of the heart. This presents a need for developing future theory for tensor tomography in a motion field. This means developing a better understanding of the MRI signal for diffusion processes in a deforming media. The techniques developed may allow the application of MRI tensor tomography for the study of structure of fiber tracts in the brain, atherosclerotic plaque, and spine in addition to fiber structure in the heart. However, the relations presented are also applicable to other fields in medical imaging such as diffraction tomography using ultrasound. The mathematics presented can also be extended to exponential Radon transform of tensor fields and to other geometric acquisitions such as cone beam tomography of tensor fields.

Defrise, Michel; Gullberg, Grant T.

2005-02-17T23:59:59.000Z

131

E-Print Network 3.0 - ann-based energy reconstruction Sample...  

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

algorithmfor Positron Emission Tomography (PET) Summary: (EM) reconstruction algorithm 11 has been shown to provide good quality reconstruction for PET. Our previous work...

132

E-Print Network 3.0 - aspects reconstruction complications Sample...  

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

parameterization, we develop two ba- sic behaviors that allow reconstruction... of a patch around any point in a reconstructible surface region. These behav- iors rely only on...

133

E-Print Network 3.0 - ac joint reconstruction Sample Search Results  

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

reconstructed uniquely and stably from measurement data, ac- quired at all source... TOMOGRAPHY 205 Fig. 5. Reconstructed images corresponding to the noise model in ... Source:...

134

Oak Ridge Dose Reconstruction Project Summary Report; Reports of the Oak Ridge Dose Reconstruction, Vol. 7  

SciTech Connect

In the early 1990s, concern about the Oak Ridge Reservation's past releases of contaminants to the environment prompted Tennessee's public health officials to pursue an in-depth study of potential off-site health effects at Oak Ridge. This study, the Oak Ridge dose reconstruction, was supported by an agreement between the U.S. Department of Energy (DOE) and the State of Tennessee, and was overseen by a 12-member panel of individuals appointed by Tennessee's Commissioner of Health. The panel requested that the principal investigator for the project prepare the following report, ''Oak Ridge Dose Reconstruction Project Summary Report,'' to serve the following purposes: (1) summarize in a single, less technical report, the methods and results of the various investigations that comprised the Phase II of the dose reconstruction; (2) describe the systematic searching of classified and unclassified historical records that was a vital component of the project; and (3) summarize the less detailed, screening-level assessments that were performed to evaluate the potential health significance of a number of materials, such a uranium, whose priority did not require a complete dose reconstruction effort. This report describes each major step of the dose reconstruction study: (1) the review of thousands of historical records to obtain information relating to past operations at each facility; (2) estimation of the quantity and timing of releases of radioiodines from X-10, of mercury from Y-12, of PCB's from all facilities, and of cesium-137 and other radionuclides from White Oak Creek; (3) evaluation of the routes taken by these contaminants through the environment to nearby populations; and (4) estimation of doses and health risks to exposed groups. Calculations found the highest excess cancer risks for a female born in 1952 who drank goat milk; the highest non-cancer health risk was for children in a farm family exposed to PCBs in and near East Fork Poplar Creek. More detailed dose and risk estimates, and associated uncertainties, are presented in several technical reports. One way to easily locate them in OSTI's Information Bridge is by searching the ''report number field'' for the number DOE/OR/21981*. The asterisk placed after the base number will enable the search to list all of the related reports in this series.

Thomas E. Widner; et. al.

1999-07-01T23:59:59.000Z

135

Seattle University Recreation Position Description  

E-Print Network (OSTI)

Seattle University Recreation Position Description Title: University Recreation ST.A.R.T Member will assist in the promotion and awareness of the University Recreation Brand and programs to the students of all University Recreation Employees. ST.A.R.T Members are comprised of members of the University

Carter, John

136

Seattle University Recreation Position Description  

E-Print Network (OSTI)

Seattle University Recreation Position Description Title: Aquatic Manager Date: 7/19/2012 Purpose/or participants by enforcing the policies and procedures of the University Recreation Department. Primary Duties of University Recreation - Aquatics & Risk Management and the lifeguard team · Assign tasks to staff when

Carter, John

137

Seattle University Recreation Position Description  

E-Print Network (OSTI)

Seattle University Recreation Position Description Title: Aquatic Manager Date: 7/23/2013 Purpose/or participants by enforcing the policies and procedures of the University Recreation Department. Primary Duties of University Recreation - Aquatics & Risk Management and the lifeguard team · Assign tasks to staff when

Carter, John

138

Seattle University Recreation Position Description  

E-Print Network (OSTI)

Seattle University Recreation Position Description Title: Outdoor Adventure Recreation Program- inclusive. Duties may be added, deleted and assigned based on Assistant Director of University Recreation/patrons in a timely manner via email, phone, or other communication methods o Update University Recreation's Facebook

Carter, John

139

POSITION DESCRIPTION 2012 TRANSFER MENTOR  

E-Print Network (OSTI)

interest in the Transfer Mentor position with Orientation and Transition Programs' (OTP) Transfer Mentoring Program. The Transfer Mentor (TM) is a member of the Orientation and Transition Programs' staff to CSU including (but not limited to) helping transfer students explore study skills, time management

140

INDUCTION, SPACE AND POSITIVE ETHICS  

E-Print Network (OSTI)

INDUCTION, SPACE AND POSITIVE ETHICS MARVIN E. KIRSH One may purport that ones' awareness of space of it are elemental --i.e. conceptually non reducible and that from which all emanates. The words non-ethical induction, entailing the existence of ethical induction, if compared in a corresponding manner (to

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

International Potato Center POSITION ANNOUNCEMENT  

E-Print Network (OSTI)

International Potato Center POSITION ANNOUNCEMENT Ref: 13-51 AVCS/IRS/SSA Agriculture Value Chain Specialist for Mozambique The International Potato Center (CIP) is seeking an Agricultural Value Chain research-for-development organization with a focus on potato, sweetpotato, and Andean roots and tubers. Its

142

Fitness landscape for nucleosome positioning  

Science Journals Connector (OSTI)

...Sequence motifs and free energies of selected natural and non-natural nucleosome...positioning by genomic excluding-energy barriers . Proc Natl Acad Sci USA...1777 – 1787 . 28 Vaillant C Audit B Arneodo A ( 2007 ) Experiments...Callan CG Jr Lassig M ( 2008 ) Energy-dependent fitness: A quantitative model...

Donate Weghorn; Michael Lässig

2013-01-01T23:59:59.000Z

143

Renewable Energy Positioning System: Energy Positioning: Control and Economics  

SciTech Connect

GENI Project: The University of Washington and the University of Michigan are developing an integrated system to match well-positioned energy storage facilities with precise control technologies so the electric grid can more easily include energy from renewable power sources like wind and solar. Because renewable energy sources provide intermittent power, it is difficult for the grid to efficiently allocate those resources without developing solutions to store their energy for later use. The two universities are working with utilities, regulators, and the private sector to position renewable energy storage facilities in locations that optimize their ability to provide and transmit electricity where and when it is needed most. Expanding the network of transmission lines is prohibitively expensive, so combining well-placed storage facilities with robust control systems to efficiently route their power will save consumers money and enable the widespread use of safe, renewable sources of power.

None

2012-03-01T23:59:59.000Z

144

Performance of ?q-lepton reconstruction and identification in CMS  

SciTech Connect

The performance of tau-lepton reconstruction and identification algorithms is studied using a data sample of proton-proton collisions at sqrt(s)=7 TeV, corresponding to an integrated luminosity of 36 inverse picobarns collected with the CMS detector at the LHC. The tau leptons that decay into one or three charged hadrons, zero or more short-lived neutral hadrons, and a neutrino are identified using final-state particles reconstructed in the CMS tracker and electromagnetic calorimeter. The reconstruction efficiency of the algorithms is measured using tau leptons produced in Z-boson decays. The tau-lepton misidentification rates for jets and electrons are determined.

Chatrchyan, Serguei; et al.

2012-01-01T23:59:59.000Z

145

Position and orientation tracking system  

DOE Patents (OSTI)

A position and orientation tracking system presents a laser scanning apparatus having two measurement pods, a control station, and a detector array. The measurement pods can be mounted in the dome of a radioactive waste storage silo. Each measurement pod includes dual orthogonal laser scanner subsystems. The first laser scanner subsystem is oriented to emit a first line laser in the pan direction. The second laser scanner is oriented to emit a second line laser in the tilt direction. Both emitted line lasers scan planes across the radioactive waste surface to encounter the detector array mounted on a target robotic vehicle. The angles of incidence of the planes with the detector array are recorded by the control station. Combining measurements describing each of the four planes provides data for a closed form solution of the algebraic transform describing the position and orientation of the target robotic vehicle. 14 figs.

Burks, B.L.; DePiero, F.W.; Armstrong, G.A.; Jansen, J.F.; Muller, R.C.; Gee, T.F.

1998-05-05T23:59:59.000Z

146

Position and orientation tracking system  

DOE Patents (OSTI)

A position and orientation tracking system presents a laser scanning appaus having two measurement pods, a control station, and a detector array. The measurement pods can be mounted in the dome of a radioactive waste storage silo. Each measurement pod includes dual orthogonal laser scanner subsystems. The first laser scanner subsystem is oriented to emit a first line laser in the pan direction. The second laser scanner is oriented to emit a second line laser in the tilt direction. Both emitted line lasers scan planes across the radioactive waste surface to encounter the detector array mounted on a target robotic vehicle. The angles of incidence of the planes with the detector array are recorded by the control station. Combining measurements describing each of the four planes provides data for a closed form solution of the algebraic transform describing the position and orientation of the target robotic vehicle.

Burks, Barry L. (Oak Ridge, TN); DePiero, Fred W. (Knoxville, TN); Armstrong, Gary A. (Oak Ridge, TN); Jansen, John F. (Knoxville, TN); Muller, Richard C. (Oak Ridge, TN); Gee, Timothy F. (Riceville, TN)

1998-01-01T23:59:59.000Z

147

A reconstruction of the Vienna skull of Hadropithecus stenognathus  

Science Journals Connector (OSTI)

...Radiology, Medical University of Vienna, for help with the CT scanning. Wade Shumaker and Bruce Knoll helped with 3D printing at various stages of the reconstruction. Harry Jerrison kindly provided the scan data for the Archaeolemur endocast...

T. M. Ryan; D. A. Burney; L. R. Godfrey; U. B. Göhlich; W. L. Jungers; N. Vasey; Ramilisonina; A. Walker; G. W. Weber

2008-01-01T23:59:59.000Z

148

Regridding reconstruction algorithm for real-time tomographic imaging  

Science Journals Connector (OSTI)

A fast algorithm for tomographic reconstruction based on the Fourier method is presented. On CPU, it provides an up to 20-fold performance increase compared with filtered back-projection routines with negligible accuracy degradation.

Marone, F.

2012-09-01T23:59:59.000Z

149

Populating reconstructed archaeological sites with autonomous virtual humans  

Science Journals Connector (OSTI)

Significant multidisciplinary efforts combining archaeology and computer science have yielded virtual reconstructions of archaeological sites for visualization. Yet comparatively little attention has been paid to the difficult problem of populating these ...

Wei Shao; Demetri Terzopoulos

2006-08-01T23:59:59.000Z

150

Notes on Single-Particle Reconstruction in Cryogenic  

E-Print Network (OSTI)

Notes on Single-Particle Reconstruction in Cryogenic Electron Microscopy Hemant D. Tagare-dimensional structure of macromolecules. A more modern method is cryogenic electron microscopy (cryo-em), which

Duncan, James S.

151

Energy reconstruction in the Long-Baseline Neutrino Experiment  

E-Print Network (OSTI)

The Long-Baseline Neutrino Experiment aims at measuring fundamental physical parameters to high precision and exploring physics beyond the standard model. Nuclear targets introduce complications towards that aim. We investigate the uncertainties in the energy reconstruction, based on quasielastic scattering relations, due to nuclear effects. The reconstructed event distributions as a function of energy tend to be smeared out and shifted by several 100 MeV in their oscillatory structure if standard event selection is used. We show that a more restrictive experimental event selection offers the possibility to reach the accuracy needed for a determination of the mass ordering and the $CP$-violating phase. Quasielastic-based energy reconstruction could thus be a viable alternative to the calorimetric reconstruction also at higher energies.

Ulrich Mosel; Olga Lalakulich; Kai Gallmeister

2014-04-24T23:59:59.000Z

152

Image Reconstruction for Prostate Specific Nuclear Medicine imagers  

SciTech Connect

There is increasing interest in the design and construction of nuclear medicine detectors for dedicated prostate imaging. These include detectors designed for imaging the biodistribution of radiopharmaceuticals labeled with single gamma as well as positron-emitting radionuclides. New detectors and acquisition geometries present challenges and opportunities for image reconstruction. In this contribution various strategies for image reconstruction for these special purpose imagers are reviewed. Iterative statistical algorithms provide a framework for reconstructing prostate images from a wide variety of detectors and acquisition geometries for PET and SPECT. The key to their success is modeling the physics of photon transport and data acquisition and the Poisson statistics of nuclear decay. Analytic image reconstruction methods can be fast and are useful for favorable acquisition geometries. Future perspectives on algorithm development and data analysis for prostate imaging are presented.

Mark Smith

2007-01-11T23:59:59.000Z

153

Reconstruction of stop quark mass at the LHC  

Science Journals Connector (OSTI)

The cascade mass reconstruction approach was applied to simulated production of the lightest stop quark at the LHC in the cascade decay g˜?t˜1t??˜20tt??˜R?tt??˜10??tt with top quarks decaying into hadrons. The stop quark mass was reconstructed assuming that the masses of gluino, slepton, and the two lightest neutralinos were reconstructed in advance. A data sample set for the SU3 model point containing 400 k supersymmetry events was generated which corresponded to an integrated luminosity of about 20??fb-1 at 14 TeV. These events were passed through the AcerDET detector simulator, which parametrized the response of a generic LHC detector. The mass of the t˜1 was reconstructed with a precision of about 10%.

Diego Casadei; Rostislav Konoplich; Rashid Djilkibaev

2010-10-15T23:59:59.000Z

154

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

155

Inexact visualization: qualitative shape representation for recognizable reconstruction  

E-Print Network (OSTI)

to which humans are able to recognize two-dimensional shapes reconstructed from a representation in our sys- tern. We also present some statistical data on some randomly generated contours and our reconstructed versions of those contours. Finally, we... with local shape features along a contour traversal. A well known example of this technique is the Freeman chain coding scheme [27]. In this method, shape is described in terms of vectors defined by a, grid plane. The vectors, when considered in order...

King, Joseph Scott

2012-06-07T23:59:59.000Z

156

Bone Surface Reconstruction From CT/MR Images Using Fast Marching and Level Set Methods1)  

E-Print Network (OSTI)

Bone Surface Reconstruction From CT/MR Images Using Fast Marching and Level Set Methods1) Istv surfaces reconstructed from MR volumes are shown. 1 Outline of the project One of our current projects steps of bone surface reconstruction from CT/MR slice images. 2 Main steps of reconstruction 2.1

Chetverikov, Dmitry

157

POLICY GUIDANCE MEMORANDUM #03 Addressing Missclassified Positions...  

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

3 Addressing Missclassified Positions POLICY GUIDANCE MEMORANDUM 03 Addressing Missclassified Positions This memorandum provides policy guidance on how to consistently address...

158

Proton Positions in Brucite Crystals  

Science Journals Connector (OSTI)

The proton positions in brucite have been determined by comparison of nuclear magnetic resonance spectra with existing x?ray data. The protons are located in parallel planes in each of which the protons are arranged in a pattern having hexagonal symmetry. The distance between adjacent protons in a given plane is 3.12±0.01 A while the distance between a given proton and its nearest neighbors in the next plane is 1.93±0.02 A. The distance between adjacent proton planes is 0.69±0.02 A. The internuclear distance in the OH bond is found to be 0.98±0.02 A.

Daniel D. Elleman; Dudley Williams

1956-01-01T23:59:59.000Z

159

Diffraction encoded position measuring apparatus  

DOE Patents (OSTI)

When a lightwave passes through a transmission grating, diffracted beams appear at the output or opposite side of the grating that are effectively Doppler shifted in frequency (phase) whereby a detector system can compare the phase of the zero order and higher order beams to obtain an indication of position. Multiple passes through the grating increase resolution for a given wavelength of a laser signal. The resolution can be improved further by using a smaller wavelength laser to generate the grating itself. Since the grating must only have a pitch sufficient to produce diffracted orders, inexpensive, ultraviolet wavelength lasers can be utilized and still obtain high resolution detection.

Tansey, Richard J. (Thousand Oaks, CA)

1991-01-01T23:59:59.000Z

160

Diffraction encoded position measuring apparatus  

DOE Patents (OSTI)

When a lightwave passes through a transmission grating, diffracted beams appear at the output or opposite side of the grating that are effectively Doppler shifted in frequency (phase) whereby a detector system can compare the phase of the zero order and higher order beams to obtain an indication of position. Multiple passes through the grating increase resolution for a given wavelength of a laser signal. The resolution can be improved further by using a smaller wavelength laser to generate the grating itself. Since the grating must only have a pitch sufficient to produce diffracted orders, inexpensive, ultraviolet wavelength lasers can be utilized and still obtain high resolution detection. 3 figures.

Tansey, R.J.

1991-09-24T23:59:59.000Z

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


161

Reconstructing Past Ocean Salinity ((delta)18Owater)  

SciTech Connect

Temperature and salinity are two of the key properties of ocean water masses. The distribution of these two independent but related characteristics reflects the interplay of incoming solar radiation (insolation) and the uneven distribution of heat loss and gain by the ocean, with that of precipitation, evaporation, and the freezing and melting of ice. Temperature and salinity to a large extent, determine the density of a parcel of water. Small differences in temperature and salinity can increase or decrease the density of a water parcel, which can lead to convection. Once removed from the surface of the ocean where 'local' changes in temperature and salinity can occur, the water parcel retains its distinct relationship between (potential) temperature and salinity. We can take advantage of this 'conservative' behavior where changes only occur as a result of mixing processes, to track the movement of water in the deep ocean (Figure 1). The distribution of density in the ocean is directly related to horizontal pressure gradients and thus (geostrophic) ocean currents. During the Quaternary when we have had systematic growth and decay of large land based ice sheets, salinity has had to change. A quick scaling argument following that of Broecker and Peng [1982] is: the modern ocean has a mean salinity of 34.7 psu and is on average 3500m deep. During glacial maxima sea level was on the order of {approx}120m lower than present. Simply scaling the loss of freshwater (3-4%) requires an average increase in salinity a similar percentage or to {approx}35.9psu. Because much of the deep ocean is of similar temperature, small changes in salinity have a large impact on density, yielding a potentially different distribution of water masses and control of the density driven (thermohaline) ocean circulation. It is partly for this reason that reconstructions of past salinity are of interest to paleoceanographers.

Guilderson, T P; Pak, D K

2005-11-23T23:59:59.000Z

162

Ultra-precision positioning assembly  

DOE Patents (OSTI)

An apparatus and method is disclosed for ultra-precision positioning. A slide base provides a foundational support. A slide plate moves with respect to the slide base along a first geometric axis. Either a ball-screw or a piezoelectric actuator working separate or in conjunction displaces the slide plate with respect to the slide base along the first geometric axis. A linking device directs a primary force vector into a center-line of the ball-screw. The linking device consists of a first link which directs a first portion of the primary force vector to an apex point, located along the center-line of the ball-screw, and a second link for directing a second portion of the primary force vector to the apex point. A set of rails, oriented substantially parallel to the center-line of the ball-screw, direct movement of the slide plate with respect to the slide base along the first geometric axis and are positioned such that the apex point falls within a geometric plane formed by the rails. The slide base, the slide plate, the ball-screw, and the linking device together form a slide assembly. Multiple slide assemblies can be distributed about a platform. In such a configuration, the platform may be raised and lowered, or tipped and tilted by jointly or independently displacing the slide plates.

Montesanti, Richard C. (San Francisco, CA); Locke, Stanley F. (Livermore, CA); Thompson, Samuel L. (Pleasanton, CA)

2002-01-01T23:59:59.000Z

163

Sustainability Peer Educator Group Lead Positions Position: Sustainability Peer Educators Group Lead  

E-Print Network (OSTI)

Sustainability Peer Educator Group Lead Positions Position: Sustainability Peer Educators Group times) Term of position: September 2013 ­ April 2014 Position Summary: Working with the Sustainability Project Coordinator, the Sustainability Peer Educator Group Leads will be responsible

Boonstra, Rudy

164

Schmidt states and positivity of linear maps  

E-Print Network (OSTI)

Using pure entangled Schmidt states, we show that m-positivity of a map is bounded by the ranks of its negative Kraus matrices. We also give an algebraic condition for a map to be m-positive. We interpret these results in the context of positive maps as entanglement witnesses, and find that only 1-positive maps are needed for testing entanglement.

Aik-meng Kuah; E. C. G. Sudarshan

2005-06-13T23:59:59.000Z

165

Microsoft Word - position.docx  

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

Director Director Lawrence L ivermore N ational L aboratory The University of California and Lawrence Livermore National Security, LLC (LLNS) invite nominations and applications for the position of Director of Lawrence Livermore National Laboratory (www.llnl.gov). LLNL is a national security laboratory managed by LLNS for the U.S. Department of Energy's (DOE) National Nuclear Security Administration (NNSA). The Laboratory was e stablished i n 1 952 a nd i s l ocated 4 9 m iles s outheast o f S an F rancisco i n L ivermore, C alif. LLNS is a limited liability company, the members of which include the University of California, Bechtel N ational, I nc., B WX T echnologies, I nc., a nd U RS E nergy & C onstruction, I nc. T he L aboratory Director is the President of the LLC, reports

166

Description and performance of track and primary-vertex reconstruction with the CMS tracker  

E-Print Network (OSTI)

A description is provided of the software algorithms developed for the CMS tracker both for reconstructing charged-particle trajectories in proton-proton interactions and for using the resulting tracks to estimate the positions of the LHC luminous region and individual primary-interaction vertices. Despite the very hostile environment at the LHC, the performance obtained with these algorithms is found to be excellent. For $t\\bar{t}$ events under typical 2011 pileup conditions, the average track-reconstruction efficiency for promptly-produced charged particles with transverse momenta of $p_T$ > 0.9 GeV is 94% for pseudorapidities of |$\\eta$| < 0.9 and 85% for |$\\eta$| between 0.9 and 2.5. The inefficiency is caused mainly by hadrons that undergo nuclear interactions in the tracker material. For isolated muons, the corresponding efficiencies are essentially 100%. For isolated muons of $p_T$ = 100 GeV emitted at |$\\eta$| lower than 1.4, the resolutions are approximately 2.8% in $p_T$, and respectively, 10 mi...

Chatrchyan, Serguei; Sirunyan, Albert M; Tumasyan, Armen; Adam, Wolfgang; Bergauer, Thomas; Dragicevic, Marko; Erö, Janos; Fabjan, Christian; Friedl, Markus; Fruehwirth, Rudolf; Ghete, Vasile Mihai; Hartl, Christian; Hörmann, Natascha; Hrubec, Josef; Jeitler, Manfred; Kiesenhofer, Wolfgang; Knünz, Valentin; Krammer, Manfred; Krätschmer, Ilse; Liko, Dietrich; Mikulec, Ivan; Rabady, Dinyar; Rahbaran, Babak; Rohringer, Herbert; Schöfbeck, Robert; Strauss, Josef; Taurok, Anton; Treberer-Treberspurg, Wolfgang; Waltenberger, Wolfgang; Wulz, Claudia-Elisabeth; Mossolov, Vladimir; Shumeiko, Nikolai; Suarez Gonzalez, Juan; Alderweireldt, Sara; Bansal, Monika; Bansal, Sunil; Beaumont, Willem; Cornelis, Tom; De Wolf, Eddi A; Janssen, Xavier; Knutsson, Albert; Luyckx, Sten; Mucibello, Luca; Ochesanu, Silvia; Roland, Benoit; Rougny, Romain; Van Haevermaet, Hans; Van Mechelen, Pierre; Van Remortel, Nick; Van Spilbeeck, Alex; Blekman, Freya; Blyweert, Stijn; D'Hondt, Jorgen; Devroede, Olivier; Heracleous, Natalie; Kalogeropoulos, Alexis; Keaveney, James; Kim, Tae Jeong; Lowette, Steven; Maes, Michael; Olbrechts, Annik; Python, Quentin; Strom, Derek; Tavernier, Stefaan; Van Doninck, Walter; Van Lancker, Luc; Van Mulders, Petra; Van Onsem, Gerrit Patrick; Villella, Ilaria; Caillol, Cécile; Clerbaux, Barbara; De Lentdecker, Gilles; Favart, Laurent; Gay, Arnaud; Léonard, Alexandre; Marage, Pierre Edouard; Mohammadi, Abdollah; Perniè, Luca; Reis, Thomas; Seva, Tomislav; Thomas, Laurent; Vander Velde, Catherine; Vanlaer, Pascal; Wang, Jian; Adler, Volker; Beernaert, Kelly; Benucci, Leonardo; Cimmino, Anna; Costantini, Silvia; Crucy, Shannon; Dildick, Sven; Garcia, Guillaume; Klein, Benjamin; Lellouch, Jérémie; Mccartin, Joseph; Ocampo Rios, Alberto Andres; Ryckbosch, Dirk; Salva Diblen, Sinem; Sigamani, Michael; Strobbe, Nadja; Thyssen, Filip; Tytgat, Michael; Walsh, Sinead; Yazgan, Efe; Zaganidis, Nicolas; Basegmez, Suzan; Beluffi, Camille; Bruno, Giacomo; Castello, Roberto; Caudron, Adrien; Ceard, Ludivine; Da Silveira, Gustavo Gil; De Callatay, Bernard; Delaere, Christophe; Du Pree, Tristan; Favart, Denis; Forthomme, Laurent; Giammanco, Andrea; Hollar, Jonathan; Jez, Pavel; Komm, Matthias; Lemaitre, Vincent; Liao, Junhui; Michotte, Daniel; Militaru, Otilia; Nuttens, Claude; Pagano, Davide; Pin, Arnaud; Piotrzkowski, Krzysztof; Popov, Andrey; Quertenmont, Loic; Selvaggi, Michele; Vidal Marono, Miguel; Vizan Garcia, Jesus Manuel; Beliy, Nikita; Caebergs, Thierry; Daubie, Evelyne; Hammad, Gregory Habib; Alves, Gilvan; Correa Martins Junior, Marcos; Dos Reis Martins, Thiago; Pol, Maria Elena; Henrique Gomes E Souza, Moacyr; Aldá Júnior, Walter Luiz; Carvalho, Wagner; Chinellato, Jose; Custódio, Analu; Da Costa, Eliza Melo; De Jesus Damiao, Dilson; De Oliveira Martins, Carley; Fonseca De Souza, Sandro; Malbouisson, Helena; Malek, Magdalena; Matos Figueiredo, Diego; Mundim, Luiz; Nogima, Helio; Prado Da Silva, Wanda Lucia; Santaolalla, Javier; Santoro, Alberto; Sznajder, Andre; Tonelli Manganote, Edmilson José; Vilela Pereira, Antonio; Bernardes, Cesar Augusto; De Almeida Dias, Flavia; Tomei, Thiago; De Moraes Gregores, Eduardo; Mercadante, Pedro G; Novaes, Sergio F; Padula, Sandra; Genchev, Vladimir; Iaydjiev, Plamen; Marinov, Andrey; Piperov, Stefan; Rodozov, Mircho; Sultanov, Georgi; Vutova, Mariana; Dimitrov, Anton; Glushkov, Ivan; Hadjiiska, Roumyana; Kozhuharov, Venelin; Litov, Leander; Pavlov, Borislav; Petkov, Peicho; Bian, Jian-Guo; Chen, Guo-Ming; Chen, He-Sheng; Chen, Mingshui; Du, Ran; Jiang, Chun-Hua; Liang, Dong; Liang, Song; Meng, Xiangwei; Plestina, Roko; Tao, Junquan; Wang, Xianyou; Wang, Zheng; Asawatangtrakuldee, Chayanit; Ban, Yong; Guo, Yifei; Li, Qiang; Li, Wenbo; Liu, Shuai; Mao, Yajun; Qian, Si-Jin; Wang, Dayong; Zhang, Linlin; Zou, Wei; Avila, Carlos; Carrillo Montoya, Camilo Andres; Chaparro Sierra, Luisa Fernanda; Florez, Carlos; Gomez, Juan Pablo; Gomez Moreno, Bernardo; Sanabria, Juan Carlos; Godinovic, Nikola; Lelas, Damir; Polic, Dunja; Puljak, Ivica; Antunovic, Zeljko; Kovac, Marko; Brigljevic, Vuko; Kadija, Kreso; Luetic, Jelena; Mekterovic, Darko; Morovic, Srecko; Sudic, Lucija; Attikis, Alexandros; Mavromanolakis, Georgios; Mousa, Jehad; Nicolaou, Charalambos; Ptochos, Fotios; Razis, Panos A; Finger, Miroslav; Finger Jr, Michael; Abdelalim, Ahmed Ali; Assran, Yasser; Elgammal, Sherif; Ellithi Kamel, Ali; Mahmoud, Mohammed; Radi, Amr; Kadastik, Mario; Müntel, Mait; Murumaa, Marion; Raidal, Martti; Rebane, Liis; Tiko, Andres; Eerola, Paula; Fedi, Giacomo; Voutilainen, Mikko

2014-01-01T23:59:59.000Z

167

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":""}]}

168

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

169

Dictionary-Learning-Based Reconstruction Method for Electron Tomography  

E-Print Network (OSTI)

Electron tomography usually suffers from so called missing wedge artifacts caused by limited tilt angle range. An equally sloped tomography (EST) acquisition scheme (which should be called the linogram sampling scheme) was recently applied to achieve 2.4-angstrom resolution. On the other hand, a compressive sensing-inspired reconstruction algorithm, known as adaptive dictionary based statistical iterative reconstruction (ADSIR), has been reported for x-ray computed tomography. In this paper, we evaluate the EST, ADSIR and an ordered-subset simultaneous algebraic reconstruction technique (OS-SART), and compare the ES and equally angled (EA) data acquisition modes. Our results show that OS-SART is comparable to EST, and the ADSIR outperforms EST and OS-SART. Furthermore, the equally sloped projection data acquisition mode has no advantage over the conventional equally angled mode in the context.

Liu, Baodong; Verbridge, Scott S; Sun, Lizhi; Wang, Ge

2013-01-01T23:59:59.000Z

170

On the positivity of Fourier transforms  

E-Print Network (OSTI)

Characterizing in a constructive way the set of real functions whose Fourier transforms are positive appears to be yet an open problem. Some sufficient conditions are known but they are far from being exhaustive. We propose two constructive sets of necessary conditions for positivity of the Fourier transforms and test their ability of constraining the positivity domain. One uses analytic continuation and Jensen inequalities and the other deals with Toeplitz determinants and the Bochner theorem. Applications are discussed, including the extension to the two-dimensional Fourier-Bessel transform and the problem of positive reciprocity, i.e. positive functions with positive transforms.

Bertrand G. Giraud; Robi Peschanski

2014-05-13T23:59:59.000Z

171

Other Executive Positions | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Executive Positions | National Nuclear Security Administration Executive Positions | 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 Other Executive Positions Home > Federal Employment > Our Jobs > Executive Positions > Other Executive Positions Other Executive Positions NNSA seeks highly qualified senior professionals to apply their knowledge,

172

Visualization and Analysis-Oriented Reconstruction of Material Interfaces  

SciTech Connect

Reconstructing boundaries along material interfaces from volume fractions is a difficult problem, especially because the under-resolved nature of the input data allows for many correct interpretations. Worse, algorithms widely accepted as appropriate for simulation are inappropriate for visualization. In this paper, we describe a new algorithm that is specifically intended for reconstructing material interfaces for visualization and analysis requirements. The algorithm performs well with respect to memory footprint and execution time, has desirable properties in various accuracy metrics, and also produces smooth surfaces with few artifacts, even when faced with more than two materials per cell.

Childs, Henry R.

2010-03-05T23:59:59.000Z

173

Maximum likelihood reconstruction for the Daya Bay Experiment  

E-Print Network (OSTI)

The Daya Bay Reactor Neutrino experiment is designed to precisely determine the neutrino mixing angle theta13. In this paper, we report a maximum likelihood (ML) method to reconstruct the vertex and energy of events in the anti-neutrino detector, based on a simplified optical model that describes light propagation. We calibrate the key paramters of the optical model with Co60 source, by comparing the predicted charges of the PMTs with the observed charges. With the optimized parameters, the resolution of the vertex reconstruction is about 25cm for Co60 gamma.

Xia Dongmei

2014-03-07T23:59:59.000Z

174

Iterative reconstruction of the detector response for medical gamma cameras  

E-Print Network (OSTI)

Statistical event reconstruction techniques can give better results for gamma cameras than the traditional centroid method. However, implementation of such techniques requires detailed knowledge of the PMT light response functions. Here we describe an iterative technique which allows to obtain the response functions from flood irradiation data without imposing strict requirements on the spatial uniformity of the event distribution. A successful application of the technique for medical gamma cameras is demonstrated using both simulated and experimental data. We show that this technique can be used for monitoring of the photomultiplier gain variations. An implementation of the iterative reconstruction technique capable of operating in real-time is also presented.

Morozov, A; Alves, F; Domingos, V; Martins, R; Neves, F; Chepel, V

2015-01-01T23:59:59.000Z

175

New designs in the reconstruction of coke-sorting systems  

SciTech Connect

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

176

Assistant Professor Position In Applied Social Psychology  

E-Print Network (OSTI)

Assistant Professor Position In Applied Social Psychology Applied Social Psychology Program Department of Psychology Colorado State University Job Description and Qualifications The Department of Psychology at Colorado State University invites applications for one tenure- track position in Applied Social

177

Kinematic GPS positioning in a highway environment  

E-Print Network (OSTI)

difference method achieves highly accurate results for the kinematic GPS positioning since the triple difference technique is insensitive to cycle slips. The algorithm for kinematic GPS positioning in a highway environment gives corrections to the receiver...

Li, Yingfeng

2012-06-07T23:59:59.000Z

178

COLORADO NATURAL HERITAGE PROGRAM Position Announcement  

E-Print Network (OSTI)

COLORADO NATURAL HERITAGE PROGRAM Position Announcement: Title: Zoology Field Technicians ­ Research Associate I Number of Positions: 1-12 (temporary) Work Location: Field sites throughout Colorado Pay Rate: $1800 - $2500/month plus per diem Duration: 3-6 months Summary of Positions The Colorado

179

A Positive-Energy Relativistic Wave Equation  

Science Journals Connector (OSTI)

...research-article A Positive-Energy Relativistic Wave Equation P. A. M...positive and negative energies. A new relativistic wave equation for particles...positive values for the energy. There is great formal...usual relativistic wave equation for the electron...

1971-01-01T23:59:59.000Z

180

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":""}]}

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

Reconstructing the Genomic Architecture of Ancestral Mammals: Lessons From Human,  

E-Print Network (OSTI)

Reconstructing the Genomic Architecture of Ancestral Mammals: Lessons From Human, Mouse, and Rat Genomes Guillaume Bourque,1 Pavel A. Pevzner,2 and Glenn Tesler3,4 1 Centre de Recherches Mathe of Mathematics, University of California­San Diego, La Jolla, California 92093, USA Recent analysis of genome

Batzoglou, Serafim

182

EQUILIBRIUM RECONSTRUCTION FROM DISCRETE MAGNETIC MEASUREMENTS IN A TOKAMAK  

E-Print Network (OSTI)

EQUILIBRIUM RECONSTRUCTION FROM DISCRETE MAGNETIC MEASUREMENTS IN A TOKAMAK Blaise Faugeras (joint of the equilibrium in a Tokamak from discrete magnetic mea- surements. In order to solve this inverse problem we of a plasma in a Tokamak [1]. The state variable of interest in the modelization of such an equilibrium under

Faugeras, Blaise

183

Photon Reconstruction and Identification with the ATLAS detector  

SciTech Connect

The understanding of the photons reconstruction will be one of the key issues at the start-up of data-taking with the ATLAS experiment at the LHC. Large statistics samples of photons produced in association with jets are expected over a wide range of E{sub T}.The photon reconstruction is based on an electromagnetic-cluster-seeded algorithm which classifies as photons those clusters which have no matching prompt track. These are then subdivided into converted or non-converted photon candidates depending on the presence of one or more tracker-reconstructed electron-positron pairs pointing to it. The precise knowledge of the material upstream the calorimeter and a correct treatment of the converted photons are critical for a correct photon reconstruction and identification.The photon identification is based almost entirely on the analysis of the shower shapes in the calorimeter. The goal is to achieve an efficient photon selection in the range from 20 GeV to several hundreds GeV with a rejection of 10{sup 3}-10{sup 4} against QCD jets in the moderate transverse momentum region of 20 to 100 GeV, which is the relevant one for H->gammagamma searches.

Donega, Mauro [Department of Physics and Astronomy-University of Pennsylvania, Philadelphia (United States)

2010-02-10T23:59:59.000Z

184

The naive rule for reconstructing a noisy Markov chain  

Science Journals Connector (OSTI)

......x = 0, Z n = 0)1?r(Xn_1 = 0|Zn = 0) = ... = Tn_x = OIX^ = 1, Xn = OJprCZ^ = l|Zn = 0) +faW^M+ G-Wti-WV^ll). (2-2) Similarly Now from Corollary 1 we have that the naive reconstruction rule is optimal if and only if pr......

JAY L. DEVORE

1973-08-01T23:59:59.000Z

185

Original Contributions MRI diffusion tensor reconstruction with PROPELLER data acquisition  

E-Print Network (OSTI)

Lake City, UT 84108, USA c Division of Nuclear Medicine, AZ-VUB University Hospital, Vrije Universiteit Brussel, Brussels, Belgium d Department of Nuclear Medicine and Functional Imaging, E. O. Lawrence be obtained to form an adequate dataset for reconstruction of the full tensor field or, at least, of its

Utah, University of

186

SRS Dose Reconstruction Report August 2006 EXECUTIVE SUMMARY  

E-Print Network (OSTI)

1954 to 1992, first by EI duPont de Nemours and Company (Dupont) for the U.S. Atomic Energy Commission (AEC), and later by Westinghouse Savannah River Company for DOE (1). SRS operated five reactors and two). ii #12;SRS Dose Reconstruction Report August 2006 Phase I of the study was a search of SRS to find

187

Topology Reconstruction and Characterisation of Wireless Ad Hoc Networks  

E-Print Network (OSTI)

Topology Reconstruction and Characterisation of Wireless Ad Hoc Networks Jon Arnold, Nigel Bean.sorell@adelaide.edu.au Abstract-- Wireless ad hoc networks provide a useful commu- nications infrastructure for the mobile Hoc Protocols, 802.11, Monitoring, Template Fitting, NS-2. I. INTRODUCTION Wireless Ad Hoc Networks

Roughan, Matthew

188

A reconstruction of the Vienna skull of Hadropithecus stenognathus  

Science Journals Connector (OSTI)

...657 . 20 Godfrey LR ( 2004 ) Dental use wear in extinct lemurs: Evidence...Constantino P Wood B Lawn B ( 2008 ) Dental enamel as a dietary indicator...from the University Clinic for Radiology, Medical University of...individual of a slightly younger dental age have also been reconstructed...

T. M. Ryan; D. A. Burney; L. R. Godfrey; U. B. Göhlich; W. L. Jungers; N. Vasey; Ramilisonina; A. Walker; G. W. Weber

2008-01-01T23:59:59.000Z

189

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

190

Underwater environment reconstruction using stereo and inertial data Andrew Hogue  

E-Print Network (OSTI)

- tions for robotic sensors. A common requirement of many of these tasks is the need to construct accurate for which environmental reconstruction is desirable including inspection and entertainment applica- tions by slight changes in water temperature, salinity and pollution. One metric for establishing the health

Jenkin, Michael R. M.

191

Integral equations for shape and impedance reconstruction in corrosion detection  

E-Print Network (OSTI)

Integral equations for shape and impedance reconstruction in corrosion detection Fioralba Cakoni of the method. 1 Introduction We consider an inverse problem originating from corrosion detection. Let D R2 Angewandte Mathematik, Universität Göttingen, 37083 Göttingen, Germany 1 #12;part c affected by corrosion

Cakoni, Fioralba

192

Simultaneous reconstruction of shape and impedance in corrosion detection  

E-Print Network (OSTI)

Simultaneous reconstruction of shape and impedance in corrosion detection Fioralba Cakoni , Rainer Kress and Christian Schuft Abstract Corrosion detection can be modelled by the Laplace equation an inverse problem that models corrosion detection. Let D R2 be a simply connected bounded domain with piece

Cakoni, Fioralba

193

Shape Reconstruction of 3D Bilaterally Symmetric Surfaces  

Science Journals Connector (OSTI)

The paper presents a new approach for shape recovery based on integrating geometric and photometric information. We consider 3D bilaterally symmetric objects, that is, objects which are symmetric with respect to a plane (e.g., faces), and their reconstruction ... Keywords: bilaterally symmetric objects, shape recovery, shape-from-shading, stereo

Ilan Shimshoni; Yael Moses; Michael Lindenbaum

2000-09-01T23:59:59.000Z

194

Electronic Annex -2 Uncertainty in Paleohydrologic Reconstructions from Molecular D  

E-Print Network (OSTI)

Calculations Using the Electronic Spreadsheet A dataset of hydrogen isotope measurements are used to illustrate1 Electronic Annex -2 Uncertainty in Paleohydrologic Reconstructions from Molecular D Example how to use the calculation spreadsheet that accompanies this manuscript. The example dataset includes

Polissar, Pratigya J.

195

Reconstructing web evolution and spider diversification in the molecular era  

E-Print Network (OSTI)

Reconstructing web evolution and spider diversification in the molecular era Todd A. Blackledgea,1- catching webs. Here, we construct a broad higher-level phylogeny of spiders combining molecular data that the spider orb web evolved only once. We then examine spider diversification in relation to different web

Mathis, Wayne N.

196

ACCELERATING REGULARIZED ITERATIVE CT RECONSTRUCTION ON COMMODITY GRAPHICS HARDWARE (GPU)  

E-Print Network (OSTI)

overhead to very moderate levels. Index Terms-- Iterative Reconstruction, Computed Tomography, Ordered Klaus Mueller Center for Visual Computing, Computer Science Department, Stony Brook University ABSTRACT) is the overall theme in many efforts to lower these exposures. Effective methods here include limiting either

Mueller, Klaus

197

Shape-based Regularization of Electron Tomographic Reconstruction  

E-Print Network (OSTI)

on tomography data from digital phantoms, simulated data and experimental Electron Tomography (ET) data of virus the forward problem, and reconstructing a 3D image (or map) from such data using the principles of tomography of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX 78712, USA Guoliang Xu

Xu, Guo-liang

198

A Local Update Strategy for Iterative Reconstruction from Projections  

E-Print Network (OSTI)

methods for statistically-based reconstruction from projections are computationally costly relative tomography with relatively high signal-to-noise ratio and complete data sets, special cases benefit from testing of materials with widely varying densities[4], and applications with limited angle projections[5

199

Shape-based Regularization of Electron Tomographic Reconstruction  

E-Print Network (OSTI)

segmentation and compared with a known spatial model. We demonstrated our method on tomography data from digital phantoms, simulated data and experimental Electron Tomography (ET) data of virus complexes. Our, and reconstructing a 3D image (or map) from such data using the principles of tomography is called the inverse

Texas at Austin, University of

200

AUTOCORRECTING RECONSTRUCTION FOR FLEXIBLE CT SCANNERS Jeff Orchard  

E-Print Network (OSTI)

revolutionize the world of computed tomography (CT). Tiny x-ray emitters and detectors could be embedded scanners. Index Terms: computed tomography, image reconstruction, entropy, nanotechnology, autofocus 1. An automatic (data-driven) motion-correction method for SPECT (single photon emission computed tomog- raphy

Orchard, Jeffery J.

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


201

Volumetric Reconstruction in the MicroCAT Tomography System  

E-Print Network (OSTI)

of projection data . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.2 Illustration of Feldkamp filteredVolumetric Reconstruction in the MicroCAT Tomography System A Thesis Presented for the Master essential data and an intimate knowledge of the MicroCAT system. Dr. Sam Jordan of the University

Cates, Josh

202

FRANz: reconstruction of wild multi-generation pedigrees  

Science Journals Connector (OSTI)

......reconstructed pedigree increases from 82.8 to 97...successfully used to increase the parentage assignments...of SNP data with high quality genetic maps will be...accommodates genotyping error increases success in paternity...Grando M. Genealogy of wine grape cultivars: is......

Markus Riester; Peter F. Stadler; Konstantin Klemm

2009-08-15T23:59:59.000Z

203

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

Science Journals Connector (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

204

E-Print Network 3.0 - automatic 3d reconstruction Sample Search...  

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

3d reconstruction Search Powered by Explorit Topic List Advanced Search Sample search results for: automatic 3d reconstruction Page: << < 1 2 3 4 5 > >> 1 Int.Workshop on...

205

Current developments at Giprokoks for coke-battery construction and reconstruction  

SciTech Connect

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

206

Low-Resolution Reconstruction of a Synthetic DNA Holliday Junction Marcelo Nollmann,*y  

E-Print Network (OSTI)

Low-Resolution Reconstruction of a Synthetic DNA Holliday Junction Marcelo No¨llmann,*y W. Marshall

Nollmann, Marcelo

207

Adsorption-induced reconstruction of the surface as a first-order phase transition  

SciTech Connect

The types of adsorption-induced reconstruction of the surface of metals have been described. A simple qualitative model has been proposed which interprets the induced reconstruction within the framework of the theory of first-kind phase transitions. The influence of the induced reconstruction on the phase diagram of the adsorption layer and the adsorption isotherms and isobars has been discussed. The role of induced reconstruction in the kinetics of chemical reactions on the surface has been assessed.

Zhdanov, V.P.

1986-11-01T23:59:59.000Z

208

Non-destructive evaluation means and method of flaw reconstruction utilizing an ultrasonic multi-viewing transducer data acquistion system  

DOE Patents (OSTI)

A multi-viewing ultrasound transducer acquisition system for non-destructive evaluation, flaw detection and flaw reconstruction in materials. A multiple transducer assembly includes a central transducer surrounded by a plurality of perimeter transducers, each perimeter transducer having an axis of transmission which can be angularly oriented with respect to the axis of transmission of the central transducer to intersect the axis of transmission of the central transducer. A control apparatus automatically and remotely positions the transducer assembly with respect to the material by a positioning apparatus and adjusts the pe GRANT REFERENCE This invention was conceived and reduced to practice at least in part under a grant from the Department of Energy under Contract No. W-7407-ENG-82.

Thompson, Donald O. (Ames, IA); Wormley, Samuel J. (Ames, IA)

1989-03-28T23:59:59.000Z

209

When the War Ends: A Population-Based Survey on Attitudes about Peace, Justice, and Social Reconstruction in Northern Uganda  

E-Print Network (OSTI)

Reconstruction in Northern Uganda december 2007 Human RightsReconstruction in Northern Uganda december 2007 written byNorthern Uganda. ..35 Table 14:

Pham, Phuong N; Vinck, Patrick; Stover, Eric; Wierda, Marieke; Moss, A R; Bailey, Richard

2007-01-01T23:59:59.000Z

210

Using Reconstructed Dust Climatology to Study the Impacts of Martian Dust Storms on Dynamics  

E-Print Network (OSTI)

Using Reconstructed Dust Climatology to Study the Impacts of Martian Dust Storms on Dynamics L@atm.ox.ac.uk) Abstract We have reconstructed the climatology of the dust on Mars using available retrievals and estimates) a reconstruction of the dust optical depth climatology based on weighted gridding for Martian years 24

Cambridge, University of

211

A neural network approach for image reconstruction in electron magnetic resonance tomography  

Science Journals Connector (OSTI)

An object-oriented, artificial neural network (ANN) based, application system for reconstruction of two-dimensional spatial images in electron magnetic resonance (EMR) tomography is presented. The standard back propagation algorithm is utilized to train ... Keywords: Artificial neural networks, Back propagation, Electron magnetic resonance tomography, Filtered back projection, Image reconstruction, Multiplicative algebraic reconstruction technique

D. Christopher Durairaj; Murali C. Krishna; Ramachandran Murugesan

2007-10-01T23:59:59.000Z

212

Clinical implementation of a digital tomosynthesis-based seed reconstruction algorithm for intraoperative postimplant dose evaluation in low dose rate prostate brachytherapy  

SciTech Connect

Purpose: The low dose rate brachytherapy procedure would benefit from an intraoperative postimplant dosimetry verification technique to identify possible suboptimal dose coverage and suggest a potential reimplantation. The main objective of this project is to develop an efficient, operator-free, intraoperative seed detection technique using the imaging modalities available in a low dose rate brachytherapy treatment room. Methods: This intraoperative detection allows a complete dosimetry calculation that can be performed right after an I-125 prostate seed implantation, while the patient is still under anesthesia. To accomplish this, a digital tomosynthesis-based algorithm was developed. This automatic filtered reconstruction of the 3D volume requires seven projections acquired over a total angle of 60 deg. with an isocentric imaging system. Results: A phantom study was performed to validate the technique that was used in a retrospective clinical study involving 23 patients. In the patient study, the automatic tomosynthesis-based reconstruction yielded seed detection rates of 96.7% and 2.6% false positives. The seed localization error obtained with a phantom study is 0.4{+-}0.4 mm. The average time needed for reconstruction is below 1 min. The reconstruction algorithm also provides the seed orientation with an uncertainty of 10 deg. {+-}8 deg. The seed detection algorithm presented here is reliable and was efficiently used in the clinic. Conclusions: When combined with an appropriate coregistration technique to identify the organs in the seed coordinate system, this algorithm will offer new possibilities for a next generation of clinical brachytherapy systems.

Brunet-Benkhoucha, Malik; Verhaegen, Frank; Lassalle, Stephanie; Beliveau-Nadeau, Dominic; Reniers, Brigitte; Donath, David; Taussky, Daniel; Carrier, Jean-Francois [Medical Physics Unit, McGill University, Montreal General Hospital, 1650 Cedar Avenue, Montreal, Quebec H3G 1A4 (Canada) and Departement de Radio-Oncologie, Centre Hospitalier de l'Universite de Montreal, 1560 rue Sherbrooke Est, Quebec, Montreal, Quebec H2L 4M1 (Canada); Medical Physics Unit, McGill University, Montreal General Hospital, 1650 Cedar Avenue, Montreal, Quebec H3G 1A4 (Canada) and Department of Radiation Oncology (MAASTRO), GROW Research Institute, University Medical Centre Maastricht, Maastricht (Netherlands); Departement de Radio-Oncologie, Centre Hospitalier de l'Universite de Montreal, 1560 rue Sherbrooke Est, Quebec, Montreal, Quebec H2L 4M1 (Canada); Medical Physics Unit, McGill University, Montreal General Hospital, 1650 Cedar Avenue, Montreal, Quebec H3G 1A4 (Canada) and Department of Radiation Oncology (MAASTRO), GROW Research Institute, University Medical Centre Maastricht, Maastricht (Netherlands); Departement de Radio-Oncologie, Centre Hospitalier de l'Universite de Montreal, 1560 rue Sherbrooke Est, Quebec, Montreal, Quebec H2L 4M1 (Canada); Departement de Radio-Oncologie, Centre Hospitalier de l'Universite de Montreal, 1560 rue Sherbrooke Est, Quebec, Montreal, Quebec H2L 4M1 (Canada) and CRCHUM, Centre Hospitalier de l'Universite de Montreal, 1560 rue Sherbrooke Est, Quebec, Montreal, Quebec H2L 4M1 (Canada)

2009-11-15T23:59:59.000Z

213

Transformation of gram positive bacteria by sonoporation  

SciTech Connect

The present invention provides a sonoporation-based method that can be universally applied for delivery of compounds into Gram positive bacteria. Gram positive bacteria which can be transformed by sonoporation include, for example, Bacillus, Streptococcus, Acetobacterium, and Clostridium. Compounds which can be delivered into Gram positive bacteria via sonoporation include nucleic acids (DNA or RNA), proteins, lipids, carbohydrates, viruses, small organic and inorganic molecules, and nano-particles.

Yang, Yunfeng; Li, Yongchao

2014-03-11T23:59:59.000Z

214

Polytopes of Minimum Positive Semidefinite Rank  

E-Print Network (OSTI)

May 29, 2012 ... Abstract: The positive semidefinite (psd) rank of a polytope is the smallest $k$ for which the cone of $k \\times k$ real symmetric psd matrices ...

João Gouveia

2012-05-29T23:59:59.000Z

215

POLYTOPES OF MINIMUM POSITIVE SEMIDEFINITE RANK 1 ...  

E-Print Network (OSTI)

The positive semidefinite (psd) rank of a polytope is the smallest k for which the cone ... characterize those polytopes whose psd rank equals this lower bound. 1.

2012-05-23T23:59:59.000Z

216

Two position optical element actuator device  

DOE Patents (OSTI)

The present invention is a two position optical element actuator device utilizing a powered means to hold an actuation arm, to which an optical element is attached, in a first position. A non-powered means drives the actuation arm to a second position, when the powered means ceases to receive power. The optical element may be a electromagnetic (EM) radiation or particle source, an instrument, or EM radiation or particle transmissive, reflective or absorptive elements. A bearing is used to transfer motion and smoothly transition the actuation arm from the first to second position.

Holdener, Fred R. (Tracy, CA); Boyd, Robert D. (Livermore, CA)

2002-01-01T23:59:59.000Z

217

Technical Position, NSTP 2003-1  

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

This technical position supplements and clarifies Department of Energy's (DOE) Policy expectations for the proper understanding and implementation of administrative controls that perform a specific safety function.

218

Satisficing measures for analysis of risky positions  

E-Print Network (OSTI)

satisficing measures and show that they are dual to classes of risk measures. ..... augment a position in order to make it “acceptable” according to some standard ...

2008-07-20T23:59:59.000Z

219

Sandia National Laboratories: heliostat standby positions  

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

heliostat standby positions Sandia Report Presents Analysis of Glare Impacts of Ivanpah Solar Power Site On August 7, 2014, in Concentrating Solar Power, Energy, News, News &...

220

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 "reconstructing paleo-smt positions" 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

Including stereoscopic information in the reconstruction of coronal magnetic fields  

E-Print Network (OSTI)

We present a method to include stereoscopic information about the three dimensional structure of flux tubes into the reconstruction of the coronal magnetic field. Due to the low plasma beta in the corona we can assume a force free magnetic field, with the current density parallel to the magnetic field lines. Here we use linear force free fields for simplicity. The method uses the line of sight magnetic field on the photosphere as observational input. The value of $\\alpha$ is determined iteratively by comparing the reconstructed magnetic field with the observed structures. The final configuration is the optimal linear force solution constrained by both the photospheric magnetogram and the observed plasma structures. As an example we apply our method to SOHO MDI/EIT data of an active region. In the future it is planned to apply the method to analyse data from the SECCHI instrument aboard the STEREO mission.

T. Wiegelmann; T. Neukirch

2008-01-23T23:59:59.000Z

222

Reconstructing Dark Energy : A Comparison of Cosmological Parameters  

E-Print Network (OSTI)

A large number of cosmological parameters have been suggested for obtaining information on the nature of dark energy. In this work, we study the efficacy of these different parameters in discriminating theoretical models of dark energy, using both currently available supernova (SNe) data, and simulations of future observations. We find that the current data does not put strong constraints on the nature of dark energy, irrespective of the cosmological parameter used. For future data, we find that the although deceleration parameter can accurately reconstruct some dark energy models, it is unable to discriminate between different models of dark energy, therefore limiting its usefulness. Physical parameters such as the equation of state of dark energy, or the dark energy density do a good job of both reconstruction and discrimination if the matter density is known to high accuracy. However, uncertainty in matter density reduces the efficacy of these parameters. A recently proposed parameter, Om(z), constructed f...

Pan, Alexander V

2010-01-01T23:59:59.000Z

223

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

224

Method to determine the position-dependant metal correction factor for dose-rate equivalent laser testing of semiconductor devices  

DOE Patents (OSTI)

A method reconstructs the charge collection from regions beneath opaque metallization of a semiconductor device, as determined from focused laser charge collection response images, and thereby derives a dose-rate dependent correction factor for subsequent broad-area, dose-rate equivalent, laser measurements. The position- and dose-rate dependencies of the charge-collection magnitude of the device are determined empirically and can be combined with a digital reconstruction methodology to derive an accurate metal-correction factor that permits subsequent absolute dose-rate response measurements to be derived from laser measurements alone. Broad-area laser dose-rate testing can thereby be used to accurately determine the peak transient current, dose-rate response of semiconductor devices to penetrating electron, gamma- and x-ray irradiation.

Horn, Kevin M.

2013-07-09T23:59:59.000Z

225

Phase 1 of the Hanford Environmental Dose Reconstruction Project  

SciTech Connect

For more than 40 years, the US government made plutonium for nuclear weapons at the Hanford Site in southeastern Washington State. Radioactive materials were released to both the air and water from Hanford. People could have been exposed to these materials, called radionuclides. The Hanford Environmental Dose Reconstruction (HEDR) Project is a multi-year scientific study to estimate the radiation doses the public may have received as a results of these releases. The study began in 1988. During the first phase, scientists began to develop and test methods for reconstructing the radiation doses. To do this, scientists found or reconstructed information about the amount and type of radionuclides that were released from Hadford facilities, where they traveled in environment, and how they reached people. Information about the people who could have been exposed was also found or reconstructed. Scientists then developed a computer model that can estimate doses from radiation exposure received many years ago. All the information that had been gathered was fed into the computer model. Then scientists did a test run'' to see whether the model was working properly. As part of its test run,'' scientists asked the computer model to generate two types of preliminary results: amounts of radionuclides in the environment (air, soil, pasture grass, food, and milk) and preliminary doses people could have received from all the routes of radiation exposure, called exposure pathways. Preliminary dose estimates were made for categories of people who shared certain characteristics and for the Phase 1 population as a whole. 26 refs., 48 figs.

Not Available

1990-07-20T23:59:59.000Z

226

Maximum entropy method for reconstruction of the CMB images  

E-Print Network (OSTI)

We propose a new approach for the accurate reconstruction of cosmic microwave background distributions from observations containing in addition to the primary fluctuations the radiation from unresolved extragalactic point sources and pixel noise. The approach uses some effective realizations of the well-known maximum entropy method and principally takes into account {\\it a priori} information about finiteness and spherical symmetry of the power spectrum of the CMB satisfying the Gaussian statistics.

A. T. Bajkova

2002-05-21T23:59:59.000Z

227

Equilibrium Pricing with Positive Externalities (Extended Abstract)  

E-Print Network (OSTI)

a product in the presence of historical externalities? A low introductory price may attract early adoptersEquilibrium Pricing with Positive Externalities (Extended Abstract) Nima Anari1 , Shayan Ehsani1 an item to strategic buyers in the pres- ence of positive historical externalities, where the value

Immorlica, Nicole

228

Electronic Position Sensor for Power Operated Accessory  

DOE Patents (OSTI)

An electronic position sensor for use with a power operated vehicle accessory, such as a power liftgate. The position sensor includes an elongated resistive circuit that is mounted such that it is stationary and extends along the path of a track portion of the power operated accessory. The position sensor further includes a contact nub mounted to a link member that moves within the track portion such that the contact nub is slidingly biased against the elongated circuit. As the link member moves under the force of a motor-driven output gear, the contact nub slides along the surface of the resistive circuit, thereby affecting the overall resistance of the circuit. The position sensor uses the overall resistance to provide an electronic position signal to an ECU, wherein the signal is indicative of the absolute position of the power operated accessory. Accordingly, the electronic position sensor is capable of providing an electronic signal that enables the ECU to track the absolute position of the power operated accessory.

Haag, Ronald H.; Chia, Michael I.

2005-05-31T23:59:59.000Z

229

UCSD Implementing Procedures 36/Classification of Positions  

E-Print Network (OSTI)

UCSD Implementing Procedures (HR-S-1) 36/Classification of Positions I. REFERENCES AND RELATED POLICIES A. UCSD Implementing Procedures 20 ­ Recruitment B. UC PPSM 36 - Classification of Positions C shall be obtained prior to any commitment to the concerned individual. III. PROCEDURES A. New

Tsien, Roger Y.

230

Resident Advisor Position Description Occupational Summary  

E-Print Network (OSTI)

Resident Advisor Position Description Occupational Summary The Resident Advisor (RA) is assigned and Residence Hall policies. The Resident Advisor provides programming based on an assessment of the community and individual needs. The responsibilities of the Resident Advisor position are implemented under the supervision

Bogaerts, Steven

231

Community Advisor Position Description Occupational Summary  

E-Print Network (OSTI)

Community Advisor Position Description Occupational Summary The Community Advisor (CA) is a full success; personal growth; and responsible citizenship. Terms of Appointment The Community Advisor position Monday, May 12, 2014 (5:00pm). Eligibility The Community Advisor must be a full-time student

Bogaerts, Steven

232

Self-correcting differential global positioning system  

E-Print Network (OSTI)

The Global Positioning System (GPS) is a satellite based system that can accurately determine a user's position in terms of latitude, longitude, and height or in terms of X, Y, and Z. The X, Y, and Z coordinate system is an Earth Centered Earth...

Schreiber, Randal Alfred

2012-06-07T23:59:59.000Z

233

Video/Photography Peer Helper Position Description  

E-Print Network (OSTI)

Video/Photography Peer Helper Position Description Position Title: Video/Photography Peer Helper As the video/photography peer helper, you will use your creative genius to chronicle and share the University of Calgary student experience using video, photography or a combination of both. This role provides

de Leon, Alex R.

234

IMUnit: Improved Multithreaded Unit Testing Position Statement  

E-Print Network (OSTI)

IMUnit: Improved Multithreaded Unit Testing Position Statement Vilas Jagannath, Milos Gligoric of schedules, we propose to design a novel language for speci- fying schedules in multithreaded tests-Champaign Urbana, IL 61801, USA {vbangal2, gliga, djin3, grosu, marinov}@illinois.edu ABSTRACT This position paper

Marinov, Darko

235

Constrained tri-sphere kinematic positioning system  

DOE Patents (OSTI)

A scalable and adaptable, six-degree-of-freedom, kinematic positioning system is described. The system can position objects supported on top of, or suspended from, jacks comprising constrained joints. The system is compatible with extreme low temperature or high vacuum environments. When constant adjustment is not required a removable motor unit is available.

Viola, Robert J (Jackson, WY)

2010-12-14T23:59:59.000Z

236

ANTICIPATED POSITION LSU ASSISTANT PROFESSOR OF MARKETING  

E-Print Network (OSTI)

ANTICIPATED POSITION LSU ASSISTANT PROFESSOR OF MARKETING The LSU E. J. Ourso College of Business invites applications for a tenure track, Assistant Professor position in the Department of Marketing Department of Marketing, please visit our webpage: business.lsu.edu/marketing Qualifications: Required

Stephens, Jacqueline

237

Positional reference system for ultraprecision machining  

DOE Patents (OSTI)

A stable positional reference system for use in improving the cutting tool-to-part contour position in numerical controlled-multiaxis metal turning machines is provided. The reference system employs a plurality of interferometers referenced to orthogonally disposed metering bars which are substantially isolated from machine strain induced position errors for monitoring the part and tool positions relative to the metering bars. A microprocessor-based control system is employed in conjunction with the plurality of positions interferometers and part contour description data input to calculate error components for each axis of movement and output them to corresponding axis driven with appropriate scaling and error compensation. Real-time position control, operating in combination with the reference system, makes possible the positioning of the cutting points of a tool along a part locus with a substantially greater degree of accuracy than has been attained previously in the art by referencing and then monitoring only the tool motion relative to a reference position located on the machine base.

Arnold, J.B.; Burleson, R.R.; Pardue, R.M.

1980-09-12T23:59:59.000Z

238

Cosmological reconstruction of $f(T,\\mathcal{T})$ Gravity  

E-Print Network (OSTI)

Motivated by the newly proposal for gravity as the effect of the torsion scalar $T$ and trace of the energy momentum tensor $\\mathcal{T}$,we investigate the cosmological reconstruction of different models of the Universe. Our aim here is to show that how this modified gravity model, $f(T,\\mathcal{T})$ is able to reproduce different epoches of the cosmological history. We explicitly show that $f(T,\\mathcal{T})$ can be reconstructed for $\\Lambda $CDM as the most popular and consistent model. Also we study the mathematical reconstruction of $f(T,\\mathcal{T})$ for a flat cosmological background filled by two fluids mixture. Such model describes phantom-non-phantom era as well as the purely phantom cosmology. We extend our investigation to more cosmological models like perfect fluid,Chaplygin gas and massless scalar field. In each case we obtain some specific forms of $f(T,\\mathcal{T})$. These families of $f(T,\\mathcal{T})$ contain arbitrary function of torsion and trace of the energy momentum.

Davood Momeni; Ratbay Myrzakulov

2014-05-29T23:59:59.000Z

239

Neutron source reconstruction from pinhole imaging at National Ignition Facility  

SciTech Connect

The neutron imaging system at the National Ignition Facility (NIF) is an important diagnostic tool for measuring the two-dimensional size and shape of the neutrons produced in the burning deuterium-tritium plasma during the ignition stage of inertial confinement fusion (ICF) implosions at NIF. Since the neutron source is small (?100 ?m) and neutrons are deeply penetrating (>3 cm) in all materials, the apertures used to achieve the desired 10-?m resolution are 20-cm long, single-sided tapers in gold. These apertures, which have triangular cross sections, produce distortions in the image, and the extended nature of the pinhole results in a non-stationary or spatially varying point spread function across the pinhole field of view. In this work, we have used iterative Maximum Likelihood techniques to remove the non-stationary distortions introduced by the aperture to reconstruct the underlying neutron source distributions. We present the detailed algorithms used for these reconstructions, the stopping criteria used and reconstructed sources from data collected at NIF with a discussion of the neutron imaging performance in light of other diagnostics.

Volegov, P.; Danly, C. R.; Grim, G. P.; Guler, N.; Merrill, F. E.; Wilde, C. H.; Wilson, D. C. [Los Alamos National Laboratory, Los Alamos, New Mexico 87544 (United States)] [Los Alamos National Laboratory, Los Alamos, New Mexico 87544 (United States); Fittinghoff, D. N.; Izumi, N.; Ma, T.; Warrick, A. L. [Livermore National Laboratory, Livermore, California 94550 (United States)] [Livermore National Laboratory, Livermore, California 94550 (United States)

2014-02-15T23:59:59.000Z

240

A paleoenvironmental reconstruction of Laguna Babícora, Chihuahua, Mexico based on ostracode paleoecology and trace element shell chemistry  

Science Journals Connector (OSTI)

Paleoecology of Laguna Babícora, Chihuahua, Mexico was reconstructed using ostracode faunal assemblages...

Manuel R. Palacios-Fest; Ana Luisa Carreño…

2002-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

Software requirements specification for the Hanford Environmental Dose Reconstruction Project air pathway environmental accumulation and dose codes  

SciTech Connect

This report describes the general software requirements for the Hanford Reservation Dose reconstruction Project.

Not Available

1992-12-28T23:59:59.000Z

242

Position estimation of transceivers in communication networks  

DOE Patents (OSTI)

This invention provides a system and method using wireless communication interfaces coupled with statistical processing of time-of-flight data to locate by position estimation unknown wireless receivers. Such an invention can be applied in sensor network applications, such as environmental monitoring of water in the soil or chemicals in the air where the position of the network nodes is deemed critical. Moreover, the present invention can be arranged to operate in areas where a Global Positioning System (GPS) is not available, such as inside buildings, caves, and tunnels.

Kent, Claudia A. (Pleasanton, CA); Dowla, Farid (Castro Valley, CA)

2008-06-03T23:59:59.000Z

243

Drug Testing for DOE Positions | Department of Energy  

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

Drug Testing for DOE Positions Drug Testing for DOE Positions Drug Testing for DOE Positions Drug Testing Matrix Secretary Bodman's Memorandum Regarding Drug Testing at DOE Fact...

244

Ethics - Misuse of Position | Department of Energy  

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

Misuse of Position Misuse of Position Ethics - Misuse of Position A friend asked me to help her with a complaint that she made to my agency about a finance company she is having a problem with. Can I ask the consumer affairs office to act more quickly on her problem? You cannot use your position with the Government for your own personal gain or for the benefit of others. This includes family, friends, neighbors, and persons or organizations that you are affiliated with outside the Government. In this case, you would be using the access you have to the consumer affairs office because of your Government job to obtain special treatment for your friend. You also may be violating a criminal law (18 USC 205) if you act as a spokesperson on behalf of your friend to any Federal agency. But you could find out if there is anyone who routinely takes calls

245

Positive Energy Conservation Products | Open Energy Information  

Open Energy Info (EERE)

Positive Energy Conservation Products Positive Energy Conservation Products Jump to: navigation, search Name Positive Energy Conservation Products Address PO Box 7568 Place Boulder, Colorado Zip 80306 Sector Efficiency Product Distributor of energy efficiency products - lighting, heating, cooling, water Website http://www.positive-energy.com Coordinates 40.0153°, -105.2702° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.0153,"lon":-105.2702,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

246

A laser speckle based position sensing technique  

E-Print Network (OSTI)

This thesis presents the design and development of a novel laser-speckle-based position sensing technique. In our prototype implementation, a He-Ne laser beam is directed at the surface of an air-bearing spindle. An imaging ...

Shilpiekandula, Vijay, 1979-

2004-01-01T23:59:59.000Z

247

Understanding Sustainability Innovations Through Positive Ethical Networks  

E-Print Network (OSTI)

In this paper, a positive organizational ethics (POE)-based framework is informed by the microfinance and socially responsible investing movements to capture the process of sustainable financial innovations. Both of these ...

Dossa, Zahir A.

248

February 25, 2014 POSITION TITLE: Community Director  

E-Print Network (OSTI)

; regulating safety operations; performing collateral tasks including staff selection, training and developmentFebruary 25, 2014 POSITION TITLE: Community Director PERSONNEL STATUS: Exempt, Full-Time, Regular the management and administration of daily residential community operations; providing crisis response; serving

Maryland, Baltimore County, University of

249

Director Position Center for Urban Transportation  

E-Print Network (OSTI)

Director Position Center for Urban Transportation The Center for Urban Transportation Research for state policymakers, transportation agencies, transportation professionals and the public. CUTR conducts of Transportation's Federal Transit Administration and Federal Highway Administration, the Florida Department

Arslan, Hüseyin

250

Position Description: Remote Sensing/GIS Analyst  

E-Print Network (OSTI)

, gpx, etc. · Aptitude for creating publication quality maps using GIS software Position Description: Remote Sensing/GIS Analyst We are seeking a Remote Sensing/GIS Analyst to support our forest carbon project validation

Mazzotti, Frank

251

Inventory pre-positioning for humanitarian operations  

E-Print Network (OSTI)

This research examines the impact of inventory pre-positioning on humanitarian operations. The study identifies optimal locations for warehousing non-consumable inventories required for initial deployment of aid. These ...

Akkihal, Anup Roop

2006-01-01T23:59:59.000Z

252

Energy Positioning Statement Texas Tech University  

E-Print Network (OSTI)

Energy Positioning Statement Texas Tech University Whitacre College of Engineering The Whitacre sufficient and sustainable energy sources to power its future. The college is committed to conducting cutting edge research and providing educational programs related to traditional and unconventional energy

Zhang, Yuanlin

253

POSITION ANNOUNCEMENT DEPARTMENT OF LANDSCAPE ARCHITECTURE  

E-Print Network (OSTI)

POSITION ANNOUNCEMENT DEPARTMENT OF LANDSCAPE ARCHITECTURE UNIVERSITY OF ILLINOIS AT URBANA CHAMPAIGN ASSISTANT PROFESSOR OF LANDSCAPE ARCHITECTURE The Department of Landscape Architecture invites communication, landscape materials, or urbanism. The Department of Landscape Architecture has renewed

Shim, Moonsub

254

Technical Position, NSTP 2002-1  

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

Technical position to clarify the need to prepare both a Transportation Safety Document (TSD) and a Safety Analysis Report for Packaging (SARP) to satisfy the requirement for a Documented Safety Analysis (DSA) to meeting 10 CFR Part 830.

255

Faculty Position in Mechanical Engineering Additive Manufacturing  

E-Print Network (OSTI)

Faculty Position in Mechanical Engineering Additive Manufacturing University of Kansas of additive manufacturing. Exceptional candidates with outstanding qualifications could be considered using additive manufacturing in applications such as, but not limited to the net shape manufacture of

256

Sprites, elf transients, and positive ground strokes  

SciTech Connect

In two summertime mesoscale convective systems (MCSs), mesospheric optical sprite phenomena were often coincident with both large-amplitude positive cloud-to-ground lightning and transient Schumann resonance excitations of the entire Earth-ionosphere cavity. These observations, together with earlier studies of MCS electrification, suggest that sprites are triggered when the rapid removal of large quantities of positive charge from an areally extensive charge layer stresses the mesosphere to dielectric breakdown. 46 refs., 7 figs., 1 tab.

Boccippio, D.J.; Boldi, R.; Williams, E.R. [Massachusetts Inst. of Technology, Cambridge, MA (United States)] [and others

1995-08-25T23:59:59.000Z

257

Side-emitting fiber optic position sensor  

DOE Patents (OSTI)

A side-emitting fiber optic position sensor and method of determining an unknown position of an object by using the sensor. In one embodiment, a concentrated beam of light source illuminates the side of a side-emitting fiber optic at an unknown axial position along the fiber's length. Some of this side-illuminated light is in-scattered into the fiber and captured. As the captured light is guided down the fiber, its intensity decreases due to loss from side-emission away from the fiber and from bulk absorption within the fiber. By measuring the intensity of light emitted from one (or both) ends of the fiber with a photodetector(s), the axial position of the light source is determined by comparing the photodetector's signal to a calibrated response curve, look-up table, or by using a mathematical model. Alternatively, the side-emitting fiber is illuminated at one end, while a photodetector measures the intensity of light emitted from the side of the fiber, at an unknown position. As the photodetector moves further away from the illuminated end, the detector's signal strength decreases due to loss from side-emission and/or bulk absorption. As before, the detector's signal is correlated to a unique position along the fiber.

Weiss, Jonathan D. (Albuquerque, NM)

2008-02-12T23:59:59.000Z

258

Reconstructing the radial breathing mode resonance Raman spectra for HiPco single-wall carbon nanotubes  

Science Journals Connector (OSTI)

The radial breathing mode (RBM) region of the resonance Raman spectra of HiPco single-wall carbon nanotubes (SWNTs) was investigated as a function of aggregation and presence of environmental contaminants. This was modeled using an energetic deviation term (?E), imparted to the optical transitions [Eii(n,m)] by the change in SWNT physicochemical environment. Three sets of Eii(n,m) values were used to reconstruct these RBM profiles, based on (i) photoluminescence (PL) measurements, (ii) a simple tight-binding (TB) model, and (iii) a set of modified (TB-based) Eii(n,m) values to account for the underestimation of the influence of chiral angle for SWNTs with diameters below 1nm. The simulation revealed that the PL-determined Eii(n,m) set provided a good fit in terms of peak position as opposed to TB-calculated values. Moderate improvement was attained using the third set of Eii(n,m) values, indicative of the importance of both curvature and chirality effects. Providing an accurate set of Eii(n,m) values becomes available, the RBM profile reconstruction methodology discussed herein could greatly enhance our ability to model a range of physicochemical changes to the immediate environment of SWNTs.

Zhengtang Luo; Rongfu Li; Sang Nyon Kim; Fotios Papadimitrakopoulos

2004-12-27T23:59:59.000Z

259

Decision management for the Hanford Environmental Dose Reconstruction Project  

SciTech Connect

The Hanford Environmental Dose Reconstruction (HEDR) Project is in the process of developing estimates for the radiation doses that individuals and population groups may have received as a result of past activities at the Hanford Reservation in Eastern Washington. A formal decision-aiding methodology has been developed to assist the HEDR Project in making significant and defensible decisions regarding how this study will be conducted. These decisions relate primarily to policy (e.g., the appropriate level of public participation in the study) and specific technical aspects (e.g., the appropriate domain and depth of the study), and may have significant consequences with respect to technical results, costs, and public acceptability.

Roberds, W.J.; Haerer, H.A. (Golder Associates, Inc., Redmond, WA (United States)); Winterfeldt, D.V. (Decision Insights, Laguna Beach, CA (United States))

1992-04-01T23:59:59.000Z

260

Reconstruction of microseismogram from various waves in a borehole  

E-Print Network (OSTI)

. D. Neve s (Member) T. W. encer (M ber) T. R. Fischer (Member) W. B. Jones, Jr. (Head of Department) August 1983 ABSTRACT Reconstruct1on of Microseismograms from Various Waves in a Borehole (August 1983) Soetjipno Soetandio, B. S. , Texas... function in time-domain Source function in frequency-domain 20 21 Laplace contour in the complex w-plane and the singularities in the k - plane z 23 Compressional and shear wave travel paths . 26 Location of Bessel functions arguments 28 Acoustic...

Soetandio, Soetjipno

1983-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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261

Reconstruction of the Primordial Power Spectrum by Direct Inversion  

E-Print Network (OSTI)

We introduce a new method for reconstructing the primordial power spectrum, $P(k)$, directly from observations of the Cosmic Microwave Background (CMB). We employ Singular Value Decomposition (SVD) to invert the radiation perturbation transfer function. The degeneracy of the multipole $\\ell$ to wavenumber $k$ linear mapping is thus reduced. This enables the inversion to be carried out at each point along a Monte Carlo Markov Chain (MCMC) exploration of the combined $P(k)$ and cosmological parameter space. We present best--fit $P(k)$ obtained with this method along with other cosmological parameters.

Nicholson, Gavin; Paykari, Paniez

2009-01-01T23:59:59.000Z

262

Cubic to tetragonal crystal lattice reconstruction during ordering or decomposition  

SciTech Connect

This thesis studied thermodynamic stability and morphology of product phases in diffusional phase transformations involving cubic-to-tetragonal crystal lattice reconstructions. Two different kinds of diffusional transformations were examined: L1{sub 0} ordering (fcc to fct lattice change) and decomposition of off-stoichiometric B2 ordering alloys accompanying bcc to fcc Bain transformation. In the first case, Fe-45 at.% Pd alloys were studied by TEM; in the second, the Bain strain relaxation during decomposition of hyper-eutectoid Cu-9.04 wt% Be alloy was studied. CuAu and InMg were also studied.

Cheong, Byung-kl [Carnegie-Mellon Univ., Pittsburgh, PA (United States). Dept. of Materials Science and Engineering

1992-09-01T23:59:59.000Z

263

Request to Fill for Support Staff Position Vacancy  

E-Print Network (OSTI)

Request to Fill for Support Staff Position Vacancy The position described below is: New [ ] Revised of positions to be filled _________ This position vacancy is externally funded [ ] Shift work or special by _____________________________________________ Date ________________________ Director, Budget Administration [ ] Vacancy Management approval required

Martin, Jeff

264

Observation of an intrinsic 5×5 reconstruction on the clean Si(111) surface  

Science Journals Connector (OSTI)

Low-temperature annealing of the cleaved Si(111)2×1 surface revealed the existence of an intrinsic 5×5 reconstruction on the clean Si(111) surface. The electronic structure of the Si(111)5×5 surface, obtained with angle-resolved photoemission, is almost identical to that of the 7×7 reconstruction. This is strong evidence that the 5×5 reconstruction is also of the dimer–adatom–stacking-fault (DAS)-type. The experimental observation of a 5×5 reconstruction supports recent theoretical results that the 7×7 and 5×5 DAS models are very close in total surface energy.

R. I. G. Uhrberg; E. Landemark; L. S. O. Johansson

1989-06-15T23:59:59.000Z

265

Assessment of Natural Hazard Damage and Reconstruction: A Case Study from Band Aceh, Indonesia  

E-Print Network (OSTI)

Thomas. 2007. Assessment and prediction of natural hazardsAssessment of Natural Hazard Damage and Reconstruction: AWorking Paper Series Assessment of Natural Hazard Damage and

Gillespie, Thomas; Frankenberg, Elizabeth; Braughton, Matt; Cooke, Abigail M.; Armenta, Tiffany; Thomas, Duncan

2009-01-01T23:59:59.000Z

266

E-Print Network 3.0 - ancestral state reconstruction Sample Search...  

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

OF RECONSTRUCTION Mapping by the Spatial Data Laboratory, United States Department of Agriculture, Agricultural... sediments and exhumed deposits of the ancestral Rio Grande....

267

Fast algorithms for nonconvex compression sensing: MRI reconstruction from very few data  

SciTech Connect

Compressive sensing is the reconstruction of sparse images or signals from very few samples, by means of solving a tractable optimization problem. In the context of MRI, this can allow reconstruction from many fewer k-space samples, thereby reducing scanning time. Previous work has shown that nonconvex optimization reduces still further the number of samples required for reconstruction, while still being tractable. In this work, we extend recent Fourier-based algorithms for convex optimization to the nonconvex setting, and obtain methods that combine the reconstruction abilities of previous nonconvex approaches with the computational speed of state-of-the-art convex methods.

Chartrand, Rick [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

268

Direct Reconstruction of dynamical dark energy from observational Hubble Parameter data  

E-Print Network (OSTI)

Reconstructing the evolution history of the equation of state parameter $w(z)$ directly from observational data is highly valuable in cosmology, since it holds substantial clues in understanding the origin of the accelerated expansion of the Universe. Contrast to a wealth of works on reconstructing $w(z)$ from supernova data, few work pay attention to Hubble parameter data. We analyze the merit of Hubble parameter data and make an attempt on reconstructing $w(z)$ from them, using the PCA approach introduced. We find that current Hubble parameter data does well in reconstructing w(z), though compared to supernova data, they are scant and their quality is much poor.

Liu, Zhi-E; Zhang, Tong-Jie; Wang, Bao-Quan; Bi, Shao-Lan

2015-01-01T23:59:59.000Z

269

E-Print Network 3.0 - acl reconstruction surgery Sample Search...  

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

Resident Teaching Schedule : July-December 2010 DATE MONDAYS Summary: TJABenjamin 25 Fracture Conf 27 Current ACL ReconstructionGraft OptionsFarrow (2920) Case... Department...

270

E-Print Network 3.0 - aortic valve reconstruction Sample Search...  

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

reconstruction Page: << < 1 2 3 4 5 > >> 1 Interaction between the mitral and aortic heart valve Summary: Interaction between the mitral and aortic heart valve an experimental...

271

E-Print Network 3.0 - accurate image reconstruction Sample Search...  

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

Reconstruct geometry from images 3. ... Source: Manchester, University of - School of Computer Science, Advanced Interfaces Group Collection: Computer Technologies and Information...

272

Modeling households’ decisions on reconstruction of houses damaged by earthquakes––Japanese case study  

Science Journals Connector (OSTI)

In this study, households’ decisions on reconstruction of damaged houses were modeled, using questionnaire data in Japan. Characteristics of households’ decisions were investigated using parameter estimation resu...

H. Sakakibara; H. Murakami; S. Esaki; D. Mori; H. Nakata

2008-02-01T23:59:59.000Z

273

Dispersion Tolerance Enhancement in Electronic Dispersion Compensation Using Full Optical-Field Reconstruction  

Science Journals Connector (OSTI)

We experimentally verify the feasibility of receiver-side electronic dispersion compensation using optical-field reconstruction, and theoretically increase the fundamental limit of...

Zhao, Jian; McCarthy, Mary E; Gunning, Paul; Ellis, Andrew D

274

Application of the TANDEM scheme for reconstructing flaw images by the SAFT method  

Science Journals Connector (OSTI)

The question of applying the TANDEM scheme for reconstructing flaw images by the SAFT method is considered. When the reflection of...

A. E. Bazulin; E. G. Bazulin; D. A. Koval

2009-07-01T23:59:59.000Z

275

Looking for hints of a reconstructible seesaw model at the Large Hadron Collider  

E-Print Network (OSTI)

We study the production of heavy neutrinos at the Large Hadron Collider (LHC) through the dominant s-channel production mode as well as the vector boson fusion (VBF) process. We consider the TeV scale minimal linear seesaw model containing two heavy singlets with opposite lepton number. This model is fully reconstructible from oscillation data apart from an overall normalization constant which can be constrained from meta-stability of the electroweak vacuum and bounds coming from lepton flavor violation (LFV) searches. Dirac nature of heavy neutrinos in this model implies suppression of the conventional same-sign-dilepton signal at the LHC. We analyze the collider signatures with tri-lepton final state and missing transverse energy as well as VBF type signals which are characterized by two additional forward tagged jets. Our investigation reveals that due to stringent constraints on light-heavy mixing coming from LFV and meta-stability bounds, the model can be explored only for light to moderate mass range of heavy neutrinos. We also note that in case of a positive signal, flavor counting of the final tri-lepton channel can give information about the mass hierarchy of the light neutrinos.

Gulab Bambhaniya; Srubabati Goswami; Subrata Khan; Partha Konar; Tanmoy Mondal

2014-10-21T23:59:59.000Z

276

Image Reconstruction with a LaBr3-based Rotational Modulator  

E-Print Network (OSTI)

A rotational modulator (RM) gamma-ray imager is capable of obtaining significantly better angular resolution than the fundamental geometric resolution defined by the ratio of detector diameter to mask-detector separation. An RM imager consisting of a single grid of absorbing slats rotating ahead of an array of a small number of position-insensitive detectors has the advantage of fewer detector elements (i.e., detector plane pixels) than required by a coded aperture imaging system with comparable angular resolution. The RM therefore offers the possibility of a major reduction in instrument complexity, cost, and power. A novel image reconstruction technique makes it possible to deconvolve the raw images, remove sidelobes, reduce the effects of noise, and provide resolving power a factor of 6 - 8 times better than the geometric resolution. A 19-channel prototype RM developed in our laboratory at Louisiana State University features 13.8 deg full-angle field of view, 1.9 deg geometric angular resolution, and the c...

Budden, B; Cherry, M L

2010-01-01T23:59:59.000Z

277

Micro-position sensor using faraday effect  

DOE Patents (OSTI)

A micro-position sensor and sensing system using the Faraday Effect. The sensor uses a permanent magnet to provide a magnetic field, and a magneto-optic material positioned in the magnetic field for rotating the plane of polarization of polarized light transmitted through the magneto-optic material. The magnet is independently movable relative to the magneto-optic material so as to rotate the plane of polarization of the polarized light as a function of the relative position of the magnet. In this manner, the position of the magnet relative to the magneto-optic material may be determined from the rotated polarized light. The sensing system also includes a light source, such as a laser or LED, for producing polarized light, and an optical fiber which is connected to the light source and to the magneto-optic material at a sensing end of the optical fiber. Processing electronics, such as a polarimeter, are also provided for determining the Faraday rotation of the plane of polarization of the back-reflected polarized light to determine the position of the magnet relative to the sensing end of the optical fiber.

McElfresh, Michael (Livermore, CA); Lucas, Matthew (Pittsburgh, PA); Silveira, Joseph P. (Tracy, CA); Groves, Scott E. (Brentwood, CA)

2007-02-27T23:59:59.000Z

278

Nonparametric reconstruction of the dark energy equation of state  

SciTech Connect

The major aim of ongoing and upcoming cosmological surveys is to unravel the nature of dark energy. In the absence of a compelling theory to test, a natural approach is to first attempt to characterize the nature of dark energy in detail, the hope being that this will lead to clues about the underlying fundamental theory. A major target in this characterization is the determination of the dynamical properties of the dark energy equation of state w. The discovery of a time variation in w(z) could then lead to insights about the dynamical origin of dark energy. This approach requires a robust and bias-free method for reconstructing w(z) from data, which does not rely on restrictive expansion schemes or assumed functional forms for w(z). We present a new non parametric reconstruction method for the dark energy equation of state based on Gaussian Process models. This method reliably captures nontrivial behavior of w(z) and provides controlled error bounds. We demollstrate the power of the method on different sets of simulated supernova data. The GP model approach is very easily extended to include diverse cosmological probes.

Heitmann, Katrin [Los Alamos National Laboratory; Holsclaw, Tracy [Los Alamos National Laboratory; Alam, Ujjaini [Los Alamos National Laboratory; Habib, Salman [Los Alamos National Laboratory; Higdon, David [Los Alamos National Laboratory; Sanso, Bruno [UC SANTA CRUZ; Lee, Herbie [UC SANTA CRUZ

2009-01-01T23:59:59.000Z

279

Secure positioning and non-local correlations  

E-Print Network (OSTI)

Recently, the problem of secure position-verification has been extensively analyzed in a formal notion where distant verifiers send secret message along with the decryption key to the prover. We propose here a different notion for secure positioning where distant verifiers determine the actions of the honest prover through non-local correlations generated by local Bell measurements instead of sending secret keys. Our proposed scheme is secure in general and evades known attacks based on instantaneous nonlocal computations in particular. The scheme enables verifiers to identify dishonest provers with very high probability, where N >>1 is the number of entangled pairs used. This strategy for secure positioning results in implementing other cryptographic tasks, for example, quantum oblivious transfer and quantum commitment scheme in a novel way.

Muhammad Nadeem

2014-06-11T23:59:59.000Z

280

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

DOE Patents (OSTI)

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

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

2011-06-14T23:59:59.000Z

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

Low rank positive partial transpose states and their relation to product vectors  

E-Print Network (OSTI)

It is known that entangled mixed states that are positive under partial transposition (PPT states) must have rank at least four. In a previous paper we presented a classification of rank four entangled PPT states which we believe to be complete. In the present paper we continue our investigations of the low rank entangled PPT states. We use perturbation theory in order to construct rank five entangled PPT states close to the known rank four states, and in order to compute dimensions and study the geometry of surfaces of low rank PPT states. We exploit the close connection between low rank PPT states and product vectors. In particular, we show how to reconstruct a PPT state from a sufficient number of product vectors in its kernel. It may seem surprising that the number of product vectors needed may be smaller than the dimension of the kernel.

Leif Ove Hansen; Andreas Hauge; Jan Myrheim; Per Øyvind Sollid

2011-04-08T23:59:59.000Z

282

Quantum Error Correction Beyond Completely Positive Maps  

E-Print Network (OSTI)

By introducing an operator sum representation for arbitrary linear maps, we develop a generalized theory of quantum error correction (QEC) that applies to any linear map, in particular maps that are not completely positive (CP). This theory of "linear quantum error correction" is applicable in cases where the standard and restrictive assumption of a factorized initial system-bath state does not apply.

A. Shabani; D. A. Lidar

2009-10-21T23:59:59.000Z

283

Beam Position Monitor System for PEP II  

SciTech Connect

We describe the beam position monitor system built for PEP-II, the B-factory at SLAC. The system reports beam position for bunches of between 5 x 10{sup 8} and 8 x 10{sup 10} electron charges, either singly or as continuous streams of bunches every 4.2 ns. Resolution at full charge is to be better than 10 microns in a single turn. Higher resolution is available via on-board multi-turn averaging. The position signal is processed in a 20 MHz bandwidth around 952 MHz. This bandwidth, rather broader than that typical of RF position monitors, allows good resolution for low charge single bunches. Additional novel features include stringent control of return losses in order to minimize cross-talk between nearby bunches which may contain very different charges. The digitizing electronics is multiplexed between the two PEP-II storage rings. Design, construction, and installation experience, as well as first results with beam are presented.

Smith, Stephen R.; Aiello, G.Roberto; Hendrickson, Linda J.; Johnson, Ronald G.; Mills, Mark R.; Olsen, Jeff J.; /SLAC

2011-09-12T23:59:59.000Z

284

Dynamic Positioning Systems Usability and Interaction Styles  

E-Print Network (OSTI)

of Strathclyde Rolls-Royce Marine AS Froy.Bjorneseth@cis.strath.ac.uk Mark D. Dunlop University of Strathclyde Mark.Dunlop@cis.strath.ac.uk Jann Peter Strand Rolls-Royce Marine AS Jann computer controlled system to automatically maintain a ship's position and heading by using her own

Dunlop, Mark D.

285

University of Northern British Columbia CUPE Position  

E-Print Network (OSTI)

. You will be responsible for general maintenance activities and providing relief for Shift Engineers Engineer Positions The University of Northern British Columbia is a dynamic and progressive institution, friendly, supportive and stimulating work environment for our employees. As part of our casual pool

Northern British Columbia, University of

286

Optical Blade Position Tracking System Test  

SciTech Connect

The Optical Blade Position Tracking System Test measures the blade deflection along the span of the blade using simple off-the-shelf infrared security cameras along with blade-mounted retro-reflective tape and video image processing hardware and software to obtain these measurements.

Fingersh, L. J.

2006-01-01T23:59:59.000Z

287

Faculty Position in Materials Electron Microscopy  

E-Print Network (OSTI)

Faculty Position in Materials Electron Microscopy at the Ecole Polytechnique Fédérale de Lausanne in electron microscopy of materials within its Institute of Materials. We seek exceptional individuals who community. Top-level applications are invited from candidates at the cutting edge of electron microscopic

Candea, George

288

Doppler Effect in Positive Rays of Hydrogen  

Science Journals Connector (OSTI)

... THE Balmer lines in the spectra of the positive rays of hydrogen show Doppler displacement d? given by the relation where ? is the wave-length of the light ... of light. J. Stark1, and J. Stark and Steubing2 showed that whereas the Doppler displacement is not a line but a strip of finite width, the maximum displacement ...

B. DASANNACHARYA; G. K. DAS

1944-07-01T23:59:59.000Z

289

Positive classical gravitational energy from classical supergravity  

Science Journals Connector (OSTI)

Classical gravity has sufficient supersymmetric extension that its Hamiltonian is expressible as a Poisson bracket of supercharges. Its value, the energy, is then a manifestly positive functional of the spinor transformation parameter, identical in form to Witten's expression whose supergravity basis is thereby established.

S. Deser

1983-06-15T23:59:59.000Z

290

Position: Assistant Professor of Chemistry, Physical Chemistry  

E-Print Network (OSTI)

John Grey Position: Assistant Professor of Chemistry, Physical Chemistry Email: jkgrey@unm.edu Phone: 505.277.1658; Fax: 505.277.2609 Office: Clark Hall B70 Homepage: http://chemistry.unm.edu/faculty_web/jgrey Education B.S. in Chemistry, 1999, Michigan Technological University, Houghton, MI Ph.D. in Chemistry

291

GRADUATE.UTWENTE.NL improve your position  

E-Print Network (OSTI)

history going back to the start of the Industrial Revolution. The IE&M programme is shaped by the rapidGRADUATE.UTWENTE.NL improve your position Industrial Engineering and Management Master of Science Programme UKBBTIE&M1106 UK #12;Industrial Engineering and Management Master of Science Products and services

Twente, Universiteit

292

Position Summary Sheet An Equal Opportunity Employer  

E-Print Network (OSTI)

requirements of the state while prudently applying public funds; keeping projects on schedule and within Chief of Passenger Rail Rolling Stock. Reporting to this position is the Section Chief of Passenger Rail Corridor Management, the Rail Program Unit Chief, the Rail Project Manager, the Rail Project Engineer

Bustamante, Fabián E.

293

Position Description Website and Video Coordinator  

E-Print Network (OSTI)

, feature content that supports the School's mission and employs best practices (i.e. chunking content, short pages, bulleted list, etc.); follow best practices with search engine optimization; creating clearPosition Description Website and Video Coordinator School of Global Environmental Sustainability

Barnes, Elizabeth A.

294

Extremal unital completely positive normal maps  

E-Print Network (OSTI)

We study the convex set of unital completely positive normal map on a von-Neumann algebra and find a necessary and sufficient condition for an element in the convex set to be extremal. We also deal with the same problem for the convex subset which admits a faithful normal state.

Anilesh Mohari

2013-01-11T23:59:59.000Z

295

Meteorological characteristics associated with warm-season positive lightning events  

E-Print Network (OSTI)

. . . . . . . . . 60 29 Percent-positive values vs. Showalter Index for pre-storm soundings, with the outlier in Figure 28 removed. . 61 30 Percent-positive values vs. Total Totals Index for pre-storm soundings. . . . . . 64 31 Percent-positive values vs. Total... lightning and others primarily positive. Percent-positive values also vary greatly by season, with winter thunderstorms exhibiting much more positive lightning (Orville and Silver 1997). Positive lightning was not known to exist until 60 years ago, when...

Heggen, Paul Michael

2012-06-07T23:59:59.000Z

296

Title of dissertation: MOTION RECONSTRUCTION OF ANIMAL GROUPS: FROM SCHOOLING FISH  

E-Print Network (OSTI)

ABSTRACT Title of dissertation: MOTION RECONSTRUCTION OF ANIMAL GROUPS: FROM SCHOOLING FISH aequipinnatus, a common species of schooling fish, and Anopheles gambiae, the most important vector of malaria, density, and movement. For tracking fish, we automatically initialize, predict, and reconstruct shape

Shapiro, Benjamin

297

Improving The Referrer-Based Web Log Session Reconstruction Mehran Nadjarbashi-Noghani  

E-Print Network (OSTI)

Improving The Referrer-Based Web Log Session Reconstruction Mehran Nadjarbashi-Noghani Faculty. We extend the conventional referrer-based heuristic to exploit this adaptation in order to achieve with some noisy or incomplete information such as the null referrer. Session reconstruction is the process

Ghorbani, Ali

298

Surface temperature trends in Russia over the past five centuries reconstructed from borehole temperatures  

E-Print Network (OSTI)

Surface temperature trends in Russia over the past five centuries reconstructed from borehole in Russia and nearby areas to reconstruct the ground surface temperature history (GSTH) over the past five Siberia. We derive GSTHs for each region individually, and a composite ``all-Russia'' GSTH from the full

Smerdon, Jason E.

299

Accurate representation of surface tension using the level contour reconstruction method  

E-Print Network (OSTI)

Accurate representation of surface tension using the level contour reconstruction method Seungwon methods for two-phase flows with surface tension which use fixed Eulerian grids occur at the two extremes surface tension forces. We present improvements to the interface reconstruction procedure in the level

Frey, Pascal

300

Stochastic Microstructure Reconstruction and Direct Numerical Simulation of the PEFC Catalyst Layer  

E-Print Network (OSTI)

Stochastic Microstructure Reconstruction and Direct Numerical Simulation of the PEFC Catalyst Layer, USA A direct numerical simulation DNS model of species and charge transport in the cathode catalyst of the catalyst layer has been reconstructed based on a stochastic technique using the low-order statistical

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

Data Acquisition and Reconstruction of Undersampled Radial MR Myocardial Perfusion Ganesh Adluru1-2  

E-Print Network (OSTI)

Data Acquisition and Reconstruction of Undersampled Radial MR Myocardial Perfusion Ganesh Adluru1-2 , Edward V.R. DiBella2-3 , C.J. McGann4 1 Electrical & Computer Engineering Department, 2 UCAIR, Department (SNR). Constrained reconstruction techniques based on a regularization framework [1, 2] have been

Utah, University of

302

RECONSTRUCTING CLIMATE ON THE GREAT PLAINS FROM BURIED SOILS: A QUANTITATIVE APPROACH  

E-Print Network (OSTI)

that buried soils can provide, this study presents the Buried Soil Reconstruction Model (BuSCR), a method for reconstructing paleoclimate based on properties of buried soils. The model was developed based on a study of modern analogue soils and climate...

Zung, Ashley B.

2013-05-31T23:59:59.000Z

303

A Comparison of Phylogenetic Reconstruction Methods on an IE Dataset Luay Nakhleh Tandy Warnow  

E-Print Network (OSTI)

A Comparison of Phylogenetic Reconstruction Methods on an IE Dataset Luay Nakhleh Tandy Warnow Dept the dataset, we study the consequences for phylogenetic reconstruction of restricting the data to lexical datasets that use only lexical characters being probably less accurate than analyses based upon datasets

Evans, Steven N.

304

ACQUISITION AND RECONSTRUCTION OF BRAIN TISSUE USING KNIFE-EDGE SCANNING MICROSCOPY  

E-Print Network (OSTI)

ACQUISITION AND RECONSTRUCTION OF BRAIN TISSUE USING KNIFE- EDGE SCANNING MICROSCOPY A Thesis Science #12;ACQUISITION AND RECONSTRUCTION OF BRAIN TISSUE USING KNIFE- EDGE SCANNING MICROSCOPY A Thesis) ______________________________ ______________________________ Ergun Akleman Valerie Taylor (Member) (Head of Department) December 2003 Major Subject: Computer Science

Keyser, John

305

Post-Disaster Reconstruction Models in the Asia Pacific: the cases of China, Iran and  

E-Print Network (OSTI)

Post-Disaster Reconstruction Models in the Asia Pacific: the cases of China, Iran and Myanmar Helen ­ Sichuan Earthquake 2008 Iran ­ Bam Earthquake 2003; Tabriz Earthquake 2012 Myanmar ­ Cyclone Nargis 2008 element in psycho-social recovery and reconstruction phase. #12;Iran Model Iran: Bam Earthquake 2003

Botea, Adi

306

Metric 3D Reconstruction and Texture Acquisition of Surfaces of Revolution from a Single Uncalibrated View  

Science Journals Connector (OSTI)

Image analysis and computer vision can be effectively employed to recover the three-dimensional structure of imaged objects, together with their surface properties. In this paper, we address the problem of metric reconstruction and texture acquisition ... Keywords: Index Terms- Surface of revolution, camera self-calibration, single-view 3D metric reconstruction, texture acquisition, projective geometry, image-based modeling.

Carlo Colombo; Alberto Del Bimbo; Federico Pernici

2005-01-01T23:59:59.000Z

307

Oxygen driven reconstruction dynamics of Ni,,977... measured by time-lapse scanning tunneling microscopy  

E-Print Network (OSTI)

Oxygen driven reconstruction dynamics of Ni,,977... measured by time-lapse scanning tunneling-lapse scanning tunneling microscopy STM has been used to observe the oxygen induced reconstruction behavior of Ni for the merging of steps in the presence of small amounts of adsorbed oxygen, less than 2% of a monolayer. Point

Sibener, Steven

308

Image Reconstruction for Positron Emission Tomography Using Fuzzy Nonlinear Anisotropic Diffusion Penalty  

E-Print Network (OSTI)

with a limited number of data appears as a highly underdetermined ill-posed problem. The projection data computed tomography. However, such algorithms are sensitive to noise artifacts so that the reconstruction projections that are close to the measured projection data. Iterative based ML reconstruction algorithms

Paris-Sud XI, Université de

309

Spatially-Adaptive Reconstruction in Computed Tomography Based on Statistical Learning  

E-Print Network (OSTI)

, there exist techniques which require projections data only in the All authors are with the Computer Science1 Spatially-Adaptive Reconstruction in Computed Tomography Based on Statistical Learning Joseph a direct reconstruction algorithm for Computed Tomography, based on a local fusion of a few preliminary

Zibulevsky, Michael

310

Uniqueness in the simultaneous reconstruction of multiparameters of a transmission line  

E-Print Network (OSTI)

Uniqueness in the simultaneous reconstruction of multiparameters of a transmission line Dongwoo of the physical parameters of a nonuniform transmission line is presented. The approach is based on the transfor of the line. 1 Introduction Methods for reconstructing the physical parameters of a nonuniform transmission

Sheen, Dongwoo

311

Reconstructing the Shifting Balance Theory in a GA: Taking Sewall Wright Seriously  

E-Print Network (OSTI)

Reconstructing the Shifting Balance Theory in a GA: Taking Sewall Wright Seriously Franz Oppacher@scs.carleton.ca Abstract- We attempt to reconstruct Sewall Wright's Shifting Balance Theory in order to address some the Shifting Balance Genetic Algorithm (SBGA), which is shown to behave as Wright intended. For example

Wineberg, Mark

312

Phenomenological reconstructions of the solar signature in the Northern Hemisphere surface temperature records since 1600  

E-Print Network (OSTI)

Phenomenological reconstructions of the solar signature in the Northern Hemisphere surface; accepted 5 June 2007; published 3 November 2007. [1] A phenomenological thermodynamic model is adopted since 1900. Citation: Scafetta, N., and B. J. West (2007), Phenomenological reconstructions of the solar

Scafetta, Nicola

313

Application of smoothing algorithms to enhance quality of 3D reconstructed images in tissues and cultures  

E-Print Network (OSTI)

this very efficient, effective tool to smooth 3D reconstructed images of test spheres and plant cells. In order to reconstruct a series of segmented images in 3D it is necessary to use the Marching Cubes algorithm which takes a specified scalar value...

Enloe, Lillian Charity

2012-06-07T23:59:59.000Z

314

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

315

An automated framework for hierarchical reconstruction of B mesons at the Belle II experiment  

E-Print Network (OSTI)

We present a software framework for Belle II that reconstructs B mesons in many decay modes with minimal user intervention. It does so by reconstructing particles in user-supplied decay channels, and then in turn using these reconstructed particles in higher-level decays. This hierarchical reconstruction allows one to cover a relatively high fraction of all B decays by specifying a limited number of particle decays. Multivariate classification methods are used to achieve a high signal-to-background ratio in each individual channel. The entire reconstruction, including the application of pre-cuts and classifier trainings, is automated to a high degree and will allow users to retrain to account for analysis-specific signal-side selections.

Pulvermacher, Christian; Feindt, Michael; Heck, Martin; Kuhr, Thomas

2014-01-01T23:59:59.000Z

316

An automated framework for hierarchical reconstruction of B mesons at the Belle II experiment  

E-Print Network (OSTI)

We present a software framework for Belle II that reconstructs B mesons in many decay modes with minimal user intervention. It does so by reconstructing particles in user-supplied decay channels, and then in turn using these reconstructed particles in higher-level decays. This hierarchical reconstruction allows one to cover a relatively high fraction of all B decays by specifying a limited number of particle decays. Multivariate classification methods are used to achieve a high signal-to-background ratio in each individual channel. The entire reconstruction, including the application of pre-cuts and classifier trainings, is automated to a high degree and will allow users to retrain to account for analysis-specific signal-side selections.

Christian Pulvermacher; Thomas Keck; Michael Feindt; Martin Heck; Thomas Kuhr

2014-10-13T23:59:59.000Z

317

Oak Ridge Dose Reconstruction annual report for calendar year 1997  

SciTech Connect

Calendar year 1997 was the third full year of work on the Oak Ridge Dose Reconstruction. Activities are summarized on the following individual project tasks: Task 1 -- Investigation of radioiodine releases from X-10 radioactive lanthanum processing; Task 2 -- Investigation of mercury releases from Y-12 lithium enrichment; Task 3 -- Investigation of PCBs in the environment near Oak Ridge; Task 4 -- Investigation of radionuclides released from White Oak Creek to the Clinch River; Task 5 -- Systematic searching of records repositories; Task 6 -- Evaluation of the quality of uranium monitoring data and a screening evaluation of potential off-site health risks; and Task 7 -- Performance of screening for additional materials not evaluated in the feasibility study.

NONE

1998-09-01T23:59:59.000Z

318

Two approaches to 3D reconstruction in NMR zeugmatography  

SciTech Connect

In nuclear magnetic resonance (NMR) zeugmatography, the primary data pertain to integrals of the unknown nuclear spin density f(x,y,z) over planes instead of lines in R/sup 3/. Two natural approaches to reconstructing f from such data are: (1) By numerical implementation of the inverse Radon transform in three dimensions (the direct approach), and (2) by application, in two successive stages, of existing well-known algorithms for inverting the two-dimensional Radon transform (the two-stage approach). These two approaches are discussed and compared, both from a theoretical standpoint and through computer results obtained with real NMR data. For the cases studied to date the two methods appear to produce qualitatively similar results.

Marr, R B; Chen, C N; Lauterbur, P C

1980-01-01T23:59:59.000Z

319

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

2012-04-26T23:59:59.000Z

320

Reconstructing the linear power spectrum of cosmological mass fluctuations  

E-Print Network (OSTI)

We describe an attempt to reconstruct the initial conditions for the formation of cosmological large-scale structure. The power spectrum of the primordial fluctuations is affected by bias, nonlinear evolution and redshift-space distortions, but we show how these effects can be corrected for analytically. Using eight independent datasets, we obtain excellent agreement in the estimated linear power spectra given the following conditions. First, the relative bias factors for Abell clusters, radio galaxies, optical galaxies and IRAS galaxies must be in the ratios 4.5:1.9:1.3:1. Second, the data require redshift-space distortion: $\\Omega^{0.6}/b_{\\ss I} = 1.0 \\pm 0.2$. Third, low values of $\\Omega$ and bias are disfavoured. The shape of the spectrum is extremely well described by a CDM transfer function with an apparent value of the fitting parameter $\\Omega h =0.25$. Tilted models predict too little power at 100 Mpc wavelengths.

J. A. Peacock; S. J. Dodds

1993-11-23T23:59:59.000Z

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

Iterative Self-Dual Reconstruction on Radar Image Recovery  

SciTech Connect

Imaging systems as ultrasound, sonar, laser and synthetic aperture radar (SAR) are subjected to speckle noise during image acquisition. Before analyzing these images, it is often necessary to remove the speckle noise using filters. We combine properties of two mathematical morphology filters with speckle statistics to propose a signal-dependent noise filter to multiplicative noise. We describe a multiscale scheme that preserves sharp edges while it smooths homogeneous areas, by combining local statistics with two mathematical morphology filters: the alternating sequential and the self-dual reconstruction algorithms. The experimental results show that the proposed approach is less sensitive to varying window sizes when applied to simulated and real SAR images in comparison with standard filters.

Martins, Charles; Medeiros, Fatima; Ushizima, Daniela; Bezerra, Francisco; Marques, Regis; Mascarenhas, Nelson

2010-05-21T23:59:59.000Z

322

Reconstructing the primordial power spectrum from the CMB  

SciTech Connect

We propose a straightforward and model independent methodology for characterizing the sensitivity of CMB and other experiments to wiggles, irregularities, and features in the primordial power spectrum. Assuming that the primordial cosmological perturbations are adiabatic, we present a function space generalization of the usual Fisher matrix formalism applied to a CMB experiment resembling Planck with and without ancillary data. This work is closely related to other work on recovering the inflationary potential and exploring specific models of non-minimal, or perhaps baroque, primordial power spectra. The approach adopted here, however, most directly expresses what the data is really telling us. We explore in detail the structure of the available information and quantify exactly what features can be reconstructed and at what statistical significance.

Gauthier, Christopher; Bucher, Martin, E-mail: cgauthie@apc.univ-paris7.fr, E-mail: bucher@apc.univ-paris7.fr [Laboratoire APC, Université Paris Diderot, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13 (France)

2012-10-01T23:59:59.000Z

323

ATLAS jet and missing ET reconstruction, calibration, and performance  

E-Print Network (OSTI)

ATLAS has achieved a very high precision on jet and missing transverse energy performance by the use of advanced calorimeter-based topological clustering and local cluster calibration, event-by-event pile-up subtraction methods, and in situ techniques to correct for the residual jet energy response difference between data and simulation. Tracking information is being combined with calorimeter to further improve the jet and missing ET performance. ATLAS has also commissioned several new powerful tools for for the analysis and interpretation of hadronic final states at the LHC such as jet substructure, jet mass, quark-gluon discrimination, and jet tagging tools for the identification of boosted heavy particles. An overview of the reconstruction, calibration and performance of jets, missing ET, and jet substructure and tagging at ATLAS is presented.

Crispin Ortuzar, M; The ATLAS collaboration

2014-01-01T23:59:59.000Z

324

ATLAS jet and missing-ET reconstruction, calibration, and performance  

E-Print Network (OSTI)

The ATLAS experiment has achieved a very high precision on jet and missing transverse energy performance by the use of advanced calorimeter-based topological clustering and local cluster calibration, event-by-event pile-up subtraction methods, and in situ techniques to correct for the residual jet energy response difference between data and simulation. Tracking information is being combined with calorimeter to further improve the jet and missing transverse energy performance. ATLAS has also commissioned several new powerful tools for the analysis and interpretation of hadronic final states at the LHC such as jet substructure, jet mass, quark-gluon discrimination, and jet tagging tools for the identification of boosted heavy particles. An overview of the reconstruction, calibration, and performance of jets, missing transverse energy, jet substructure, and jet tagging at ATLAS is presented.

Berta, P; The ATLAS collaboration

2014-01-01T23:59:59.000Z

325

Effect of electronic reconstruction on cuprate-manganite spin switches.  

SciTech Connect

We examine the anomalous inverse spin switch behavior in La{sub 0.7}Ca{sub 0.3}MnO{sub 3}(LCMO)/YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} (YBCO)/LCMO trilayers by combined transport studies and polarized neutron reflectometry. Measuring magnetization profiles and magnetoresistance in an in-plane rotating magnetic field, we prove that, contrary to many accepted theoretical scenarios, the relative orientation between the two LCMO's magnetizations is not sufficient to determine the magnetoresistance. Rather the field dependence of magnetoresistance is explained by the interplay between the applied magnetic field and the (exponential tail of the) induced exchange field in YBCO, the latter originating from the electronic reconstruction at the LCMO/YBCO interfaces.

Liu, Y.; Visani, C.; Nemes, N. M.; Fitzsimmons, M. R.; Zhu, L. Y.; Tornos, J.; Zhernenkov, M.; Hoffmann, A.; Leon, C.; Santamaria, J.; te Velthuis, S. G. E. (Materials Science Division); (Universidad Complutense de Madrid); (LANL)

2012-01-01T23:59:59.000Z

326

Two-dimensional iterative region-of-interest (ROI) reconstruction from truncated projection data  

SciTech Connect

A small detector or limited gantry rotation angles may cause data truncation, in which case the entire object cannot be completely reconstructed. However, a small region of interest (ROI) may be recoverable in certain truncation situations. Two analytical methods have been proposed for exact ROI reconstruction. Here we evaluate the capability of ROI reconstruction using an maximum-likelihood expectation-maximization (ML-EM) method, which directly solves the inverse problem of the system equations. ROI reconstruction using the ML-EM method is compared with that using the two analytical methods. Comparisons are based on reconstructions of four specifically designed, computer-simulated truncation cases. In the simulation, each reconstructed ROI is coupled with its counterpart in the nontruncated case to evaluate the accuracy of the reconstructed ROI. We found that, (a) in two truncation situations the ROI can be reconstructed by both the analytical methods and the two-dimensional ML-EM method, but the ML-EM method may produce a larger ROI; (b) for a truncation case that neither analytical algorithm is applicable, the ML-EM method provides a quantitative ROI reconstruction; and (c) for the well-known 'interior' truncation problem, neither the analytical methods nor the ML-EM method can perform an exact ROI reconstruction, but the ML-EM method provides informative ROI images. We also propose an analysis using the truncated projection matrix and its Moore-Penrose inverse matrix which can help to determine the recoverable ROI using iterative methods for a given truncation situation.

Zhang, B.; Zeng, G. L. [Utah Center for Advanced Imaging Research, University of Utah, Salt Lake City, Utah 84108 (United States)

2007-03-15T23:59:59.000Z

327

Forensic investigations frequently utilize facial reconstructions/approximations to stimulate recognition and identification. Over the past 25 years, many computer-  

E-Print Network (OSTI)

REVIEW Abstract Forensic investigations frequently utilize facial reconstructions by the wider forensic science field. In addi- tion, constant re-evaluation and assessment will promote further improvement and increase reliability. Key Words: Forensic; human identification; facial reconstruction; facial

Frey, Pascal

328

Criteria for SES Positions | Department of Energy  

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

Services » Executive Resources » Senior Executive Service (SES) Services » Executive Resources » Senior Executive Service (SES) » Criteria for SES Positions Criteria for SES Positions Initial career appointments to the SES must be made following competitive merit staffing requirements. Agencies must announce SES vacancies that will be filled by initial career appointment to at least all Federal civil service employees. Vacancies are published on the USAJOBS Veteran's preference does not apply to SES selections. An Executive Resources Board (ERB) is convened to conduct the merit staffing process. The ERB reviews the executive qualifications of each eligible candidate and make recommendations to the appointing official concerning the candidates. Upon tentative selection, a Qualifications Review Board (QRB) administered by the Office of Personnel Management (OPM)

329

Benefits for SES Positions | Department of Energy  

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

Executive Resources » Senior Executive Service (SES) Executive Resources » Senior Executive Service (SES) » Benefits for SES Positions Benefits for SES Positions Leave SES members are entitled to accrue annual leave at the rate of 8 hours per biweekly pay period and can accumulate a total of up to 90 days of annual leave per pay calendar year. All Federal employees including SES members earn 13 days of sick leave per pay calendar year. There is no ceiling on the amount of sick leave that may be carried over from year to year. Home Leave SES members who have completed 24 months of continuous service outside the United States may be granted leave of absence at a rate not to exceed 1 week for each 4 months of service. The leave is for use in the United States or if the employee's residence is outside the are of employment,

330

Positive Energy Inc | Open Energy Information  

Open Energy Info (EERE)

Positive Energy Inc Positive Energy Inc Place Arlington, Virginia Zip 22201 Sector Efficiency Product Demand-response and efficiency company which uses behavioral science and targeted direct marketing to reduce energy consumption. Coordinates 43.337585°, -89.379449° 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":43.337585,"lon":-89.379449,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

331

Increasing positive displacement charging pump reliability  

SciTech Connect

The use of positive displacement pumps in many PWRs is an integral part of providing reactivity control via the Chemical and Volume Control system. This usually requires the continuous operation of at least one pump, typically with a flow rate of 44 gpm {at} 2,310 psig (167 lpm {at} 160 bar). Some PWRs use multiple pumps, and vary the letdown, while others use variable speed pumps. Regardless, the charging pumps run continuously. With the amount of reciprocating mass, differential pressure, and friction, it is a battle to maintain the pumps in peak operating condition for long periods of time. This paper will show how Entergy Operations` Waterford 3 SES was able to increase the reliability of the positive displacement Charging Pumps. Many different solutions were evaluated, and several adopted. The results are undeniable, as availability has increased and O and M costs have been reduced by 90% over 6 years.

Wade, J.H. III [Entergy Operations, Inc., Killona, LA (United States)

1996-08-01T23:59:59.000Z

332

Position Ring System using Anger Type Detectors  

SciTech Connect

The overall objective of our project was to develop PET scanners and imaging techniques that achieve high performance and excellent image quality. Our approach was based upon 3-D imaging (no septa) with position-sensitive Anger-logic detectors, whereby the encoding ratio of resolution elements to number of photo-multiplier tube channels is very high. This design led to a series of PET systems that emphasized cost-effectiveness and practicality in a clinical environment.

Joel S. Karp, principal investigator

2004-12-14T23:59:59.000Z

333

Positive energy quantization of linear dynamics  

E-Print Network (OSTI)

The abstract mathematical structure behind the positive energy quantization of linear classical systems is described. It is separated into 3 stages: the description of a classical system, the algebraic quantization and the Hilbert space quantization. 4 kinds of systems are distinguished: neutral bosonic, neutral bosonic, charged bosonic and charged fermionic. The formalism that is described follows closely the usual constructions employed in quantum physics to introduce non-interacting quantum fields.

Derezinski, Jan

2009-01-01T23:59:59.000Z

334

Positive active material for an electrical cell  

SciTech Connect

The invention relates to a positive active material for an electric cell. Such an active material is constituted by a vitreous compound which results from the addition of a small quantity of silica to at least one electrochemically reducible metal oxide. Application to electric cells with non-aqueous electrolyte, the negative electrodes of these cells being based on an alkali or alkali-earth metal.

Baudry, S.; Broussely, M.

1981-06-02T23:59:59.000Z

335

Refueling machine with relative positioning capability  

DOE Patents (OSTI)

A refueling machine having relative positioning capability for refueling a nuclear reactor. The refueling machine includes a pair of articulated arms mounted on a refueling bridge. Each arm supports a respective telescoping mast. Each telescoping mast is designed to flex laterally in response to application of a lateral thrust on the end of the mast. A pendant mounted on the end of the mast carries an air-actuated grapple, television cameras, ultrasonic transducers and waterjet thrusters. The ultrasonic transducers are used to detect the gross position of the grapple relative to the bail of a nuclear fuel assembly in the fuel core. The television cameras acquire an image of the bail which is compared to a pre-stored image in computer memory. The pendant can be rotated until the television image and the pre-stored image match within a predetermined tolerance. Similarly, the waterjet thrusters can be used to apply lateral thrust to the end of the flexible mast to place the grapple in a fine position relative to the bail as a function of the discrepancy between the television and pre-stored images.

Challberg, Roy Clifford (Livermore, CA); Jones, Cecil Roy (Saratoga, CA)

1998-01-01T23:59:59.000Z

336

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

337

The Transpatellar Steinmann Pin as a Postoperative Safeguard After Reconstruction of the Posterior Cruciate Ligament or After Trillat’s Operation  

Science Journals Connector (OSTI)

Postoperative immobilisation, relieving tension, is compulsory after reconstructive surgery of ligamentary structures. Following reconstruction of the posterior cruciate ligament (PCL) or after Trillat’s opera...

E. Orthner; O. Kwasny; R. Schabus; M. Wagner

1988-01-01T23:59:59.000Z

338

DOE Guidance - Permanent and Nonpermanent Positions, Appointments, &  

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

Guidance - Permanent and Nonpermanent Positions, Guidance - Permanent and Nonpermanent Positions, Appointments, & CHRIS Codes DOE Guidance - Permanent and Nonpermanent Positions, Appointments, & CHRIS Codes Guidance Memorandum #23 DOE Guidance - Permanent and Nonpermanent Positions, Appointments, & CHRIS Codes This document provides assistance in determining whether a new position should be designated as permanent or nonpermanent (temporary), to provide examples of the various types of appointments and personnel actions that can be used with position determinations, and to define the associated Corporate Human Resource Information System (CHRIS) position codes. Permanent and Nonpermanent Positions, Appointments, & CHRIS Codes Responsible Contacts Bruce Murray HR Policy Advisor E-mail bruce.murray@hq.doe.gov

339

DOE Guidance - Permanent and Nonpermanent Positions, Appointments, &  

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

Guidance - Permanent and Nonpermanent Positions, Guidance - Permanent and Nonpermanent Positions, Appointments, & CHRIS Codes DOE Guidance - Permanent and Nonpermanent Positions, Appointments, & CHRIS Codes Guidance Memorandum #23 DOE Guidance - Permanent and Nonpermanent Positions, Appointments, & CHRIS Codes This document provides assistance in determining whether a new position should be designated as permanent or nonpermanent (temporary), to provide examples of the various types of appointments and personnel actions that can be used with position determinations, and to define the associated Corporate Human Resource Information System (CHRIS) position codes. Permanent and Nonpermanent Positions, Appointments, & CHRIS Codes Responsible Contacts Bruce Murray HR Policy Advisor E-mail bruce.murray@hq.doe.gov

340

Current CO-OP Open Positions | Argonne National Laboratory  

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

Current CO-OP Open Positions Position 1: Electrical Engineer Student The Electronics Group of the High Energy Physics Division seeks two Electrical Engineering undergraduate...

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

The impact of immediate breast reconstruction on the technical delivery of postmastectomy radiotherapy  

SciTech Connect

Purpose: To quantify the impact of immediate breast reconstruction on postmastectomy radiation therapy (PMRT) planning. Methods: A total of 110 patients (112 treatment plans) who had mastectomy with immediate reconstruction followed by radiotherapy were compared with contemporaneous stage-matched patients who had undergone mastectomy without intervening reconstruction. A scoring system was used to assess optimal radiotherapy planning using four parameters: breadth of chest wall coverage, treatment of the ipsilateral internal mammary chain, minimization of lung, and avoidance of heart. An 'optimal' plan achieved all objectives or a minor 0.5 point deduction; 'moderately' compromised treatment plans had 1.0 or 1.5 point deductions; and 'major' compromised plans had {>=}2.0 point deductions. Results: Of the 112 PMRT plans scored after reconstruction, 52% had compromises compared with 7% of matched controls (p < 0.0001). Of the compromised plans after reconstruction, 33% were considered to be moderately compromised plans and 19% were major compromised treatment plans. Optimal chest wall coverage, treatment of the ipsilateral internal mammary chain, lung minimization, and heart avoidance was achieved in 79%, 45%, 84%, and 84% of the plans in the group undergoing immediate reconstruction, compared respectively with 100%, 93%, 97%, and 92% of the plans in the control group (p < 0.0001, p < 0.0001, p = 0.0015, and p = 0.1435). In patients with reconstructions, 67% of the 'major' compromised radiotherapy plans were left-sided (p < 0.16). Conclusions: Radiation treatment planning after immediate breast reconstruction was compromised in more than half of the patients (52%), with the largest compromises observed in those with left-sided cancers. For patients with locally advanced breast cancer, the potential for compromised PMRT planning should be considered when deciding between immediate and delayed reconstruction.

Motwani, Sabin B. [Department of Radiation Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Strom, Eric A. [Department of Radiation Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States)]. E-mail: estrom@mdanderson.org; Schechter, Naomi R. [Department of Radiation Oncology, University of California-San Francisco, San Francisco, CA (United States); Butler, Charles E. [Department of Plastic Surgery, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Lee, Gordon K. [Department of Plastic Surgery, Scott and White Memorial Hospital, Temple, TX (United States); Langstein, Howard N. [Department of Plastic Surgery, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Kronowitz, Steven J. [Department of Plastic Surgery, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Meric-Bernstam, Funda [Department of Surgical Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Ibrahim, Nuhad K. [Department of Medical Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Buchholz, Thomas A. [Department of Radiation Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States)

2006-09-01T23:59:59.000Z

342

Tectonostratigraphic reconstruction and lithofacies distribution of tertiary slope sedimentary rocks in the Western Mississippi Canyon area  

SciTech Connect

The distribution of upper Tertiary, sandstone-prone, deep-water sedimentary rocks from the vicinity of Cognac field, Mississippi Canyon (MC) 194, south of Mars field (MC763) is presented based on an integrated sequence stratigraphic analysis of seismic, well log, and biostratigraphic data. Paleo-salt distributions were reconstructed by plotting the changing positions of depocenters on five isopach maps generated from six key sequence boundaries. Depositional trends, projected under allochthonous salt sheets, indicated subsalt prospectivity. Sixteen sequences were interpreted and subdivided into three lowstand depositional units (basin-floor fan, slope fan, and prograding wedge). Thirty isochron/seismic facies maps were made to reveal the stratigraphic pattern through the late Tertiary. During the early Miocene, a salt-rimmed syncline centered north of Mars field in MC455 accumulated sediments. The salt rim collapsed, creating a middle Miocene turtle structure. Middle-late Miocene sand-rich turbidites bypassed this structure and were deposited to the south around Mars field and beyond. At the same time, another depotrough 30 mi east of Mars field channeled deep-water sands to the MC730 area. A late Miocene-early Pliocene counterregional fault striking parallel to the shelf edge formed as salt evacuated the area on the south side of the Cognac (MC194) and Lena (MC280) fields. This fault trapped the Pliocene reservoir sandstones that produce in these fields. Sedimentation during the late Pliocene-early Pleistocene was very slow (0.2m/1,000 yr) and characterized by thin, stacked, condensed sections of hemipelagic shale. Since the mid-Pleistocene, the Mississippi River has supplied sediments to the Mississippi Canyon area that have induced salt deformation that has in turn affected recent sedimentation.

Hannan, A.E.; Risch, D.L.; Chowdhury, A.N. [Geco-Prakla, Inc., Houston, TX (United States)

1994-12-31T23:59:59.000Z

343

Global Positioning System receiver evaluation results  

SciTech Connect

A Sandia project currently uses an outdated Magnavox 6400 Global Positioning System (GPS) receiver as the core of its navigation system. The goal of this study was to analyze the performance of the current GPS receiver compared to newer, less expensive models and to make recommendations on how to improve the performance of the overall navigation system. This paper discusses the test methodology used to experimentally analyze the performance of different GPS receivers, the test results, and recommendations on how an upgrade should proceed. Appendices contain detailed information regarding the raw data, test hardware, and test software.

Byrne, R.H.

1993-09-01T23:59:59.000Z

344

On Stochastic Generators of Completely Positive Cocycles  

E-Print Network (OSTI)

A characterisation of the generators of quantum stochastic cocycles of completely positive (CP) maps is given in terms of the complete dissipativity (CD) of its form-generator. The pseudo-Hilbert dilation of the stochastic form-generator and the pre-Hilbert dilation of the corresponding dissipator is found. The general form of the linear continuous structural maps for the algebra of all bounded operators is derived and the quantum stochastic flow for the corresponding cocycle is outlined. It is proved that any w*-analytical bounded CD form-generator give rise to a quantum stochastic CP cocycle over a von Neumann algebra.

V. P. Belavkin

2005-12-12T23:59:59.000Z

345

Magnetic Moment of the Positive Muon  

Science Journals Connector (OSTI)

The magnetic moment of the positive muon has been measured relative to that of the proton by determining its precession frequency in a magnetic field measured by proton NMR. With both protons and muons bound in a spherical sample of water, the result is ????p?=3.183 362±0.000 030 (9.4 ppm). Including uncertainties due to the chemical environment of the muon, the result for free muons and protons is ???p=3.183 330±0.000 044 (14 ppm) which is consistent with recent measurements of the hyperfine splitting of muonium.

D. P. Hutchinson; F. L. Larsen; N. C. Schoen; D. I. Sober; A. S. Kanofsky

1970-06-01T23:59:59.000Z

346

Tunneling images of the 5×5 surface reconstruction on Ge-Si(111)  

Science Journals Connector (OSTI)

Germanium-silicon alloys can be prepared on crystalline silicon (111) substrates and have been observed to have 5×5 surface reconstructions. We present tunneling images of this surface which show that is has strong similarities to the Si(111)7×7 reconstruction. A model related to that proposed by Takayanagi, Ytaniahiro, and Kobayashi accounts for the general features of the observed reconstruction. In addition the surface is observed to have periodic vertical modulations which indicate an ordered Ge-Si surface alloy.

R. S. Becker; J. A. Golovchenko; B. S. Swartzentruber

1985-12-15T23:59:59.000Z

347

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

348

A general few-projection method for tomographic reconstruction of samples consisting of several distinct materials  

SciTech Connect

We present a method for tomographic reconstruction of objects containing several distinct materials, which is capable of accurately reconstructing a sample from vastly fewer angular projections than required by conventional algorithms. The algorithm is more general than many previous discrete tomography methods, as: (i) a priori knowledge of the exact number of materials is not required; (ii) the linear attenuation coefficient of each constituent material may assume a small range of a priori unknown values. We present reconstructions from an experimental x-ray computed tomography scan of cortical bone acquired at the SPring-8 synchrotron.

Myers, Glenn R. [Department of Applied Mathematics, Australian National University, Canberra ACT 0200 (Australia); Thomas, C. David L.; Clement, John G. [Melbourne Dental School, University of Melbourne, Melbourne 3010 (Australia); Paganin, David M. [School of Physics, Monash University, Clayton 3800 (Australia); CSIRO Materials Science and Engineering, PB 33, Clayton South, 3169 (Australia); Gureyev, Timur E. [CSIRO Materials Science and Engineering, PB 33, Clayton South, 3169 (Australia)

2010-01-11T23:59:59.000Z

349

Noise Equivalent Counts Based Emission Image Reconstruction Algorithm of Tomographic Gamma Scanning  

E-Print Network (OSTI)

Tomographic Gamma Scanning (TGS) is a technique used to assay the nuclide distribution and radioactivity in nuclear waste drums. Both transmission and emission scans are performed in TGS and the transmission image is used for the attenuation correction in emission reconstructions. The error of the transmission image, which is not considered by the existing reconstruction algorithms, negatively affects the final results. An emission reconstruction method based on Noise Equivalent Counts (NEC) is presented. Noises from the attenuation image are concentrated to the projection data to apply the NEC Maximum-Likelihood Expectation-Maximization algorithm. Experiments are performed to verify the effectiveness of the proposed method.

Wang, Ke; Feng, Wei; Han, Dong

2014-01-01T23:59:59.000Z

350

Noise Equivalent Counts Based Emission Image Reconstruction Algorithm of Tomographic Gamma Scanning  

E-Print Network (OSTI)

Tomographic Gamma Scanning (TGS) is a technique used to assay the nuclide distribution and radioactivity in nuclear waste drums. Both transmission and emission scans are performed in TGS and the transmission image is used for the attenuation correction in emission reconstructions. The error of the transmission image, which is not considered by the existing reconstruction algorithms, negatively affects the final results. An emission reconstruction method based on Noise Equivalent Counts (NEC) is presented. Noises from the attenuation image are concentrated to the projection data to apply the NEC Maximum-Likelihood Expectation-Maximization algorithm. Experiments are performed to verify the effectiveness of the proposed method.

Ke Wang; Zheng Li; Wei Feng; Dong Han

2014-04-17T23:59:59.000Z

351

Positron source position sensing detector and electronics  

DOE Patents (OSTI)

A positron source, position sensing device, particularly with medical applications, in which positron induced gamma radiation is detected using a ring of stacked, individual scintillation crystals, a plurality of photodetectors, separated from the scintillation crystals by a light guide, and high resolution position interpolation electronics. Preferably the scintillation crystals are several times more numerous than the photodetectors with each crystal being responsible for a single scintillation event from a received gamma ray. The light guide will disperse the light emitted from gamma ray absorption over several photodetectors. Processing electronics for the output of the photodetectors resolves the location of the scintillation event to a fraction of the dimension of each photodetector. Because each positron absorption results in two 180.degree. oppositely traveling gamma rays, the detection of scintillation in pairs permits location of the positron source in a manner useful for diagnostic purposes. The processing electronics simultaneously responds to the outputs of the photodetectors to locate the scintillations to the source crystal. While it is preferable that the scintillation crystal include a plurality of stacked crystal elements, the resolving power of the processing electronics is also applicable to continuous crystal scintillators.

Burnham, Charles A. (South Essex, MA); Bradshaw, Jr., John F. (Winthrop, MA); Kaufman, David E. (Brockton, MA); Chesler, David A. (Newton Highlands, MA); Brownell, Gordon L. (Cambridge, MA)

1985-01-01T23:59:59.000Z

352

Innovative directional and position specific sampling technique  

SciTech Connect

The main objective of UTD`s completed contract was to demonstrate the accuracy UTD POsition LOcator (POLO) system d for penetrometer applications. The contract work was accomplished in three phases. Phase I involved sub-scale refinement of the POLO sub-systems which included the design and testing of individual components of POLO. The objectives of Phase II were to integrate a prototype POLO unit and demonstrate its accuracy through laboratory tracking experiments. Phase III objectives included manufacturing and assembly of a full-scale POLO unit and demonstration of its accuracy under field conditions. The success criterion for the entire contract was to calculate the penetrometer tip position with 0.5% accuracy or better with respect to distance traveled both in laboratory and field tests. This criterion was satisfied in Phase II laboratory tests and in Phase III field tests at two different sites. With successful completion of the contract in September, 1994, UTD has embarked on a commercialization plan in order to make commercial POLO units available to DOE contractors and penetrometer users in a timely fashion.

Foster, E.L.

1994-12-31T23:59:59.000Z

353

Lack of Correlation Between External Fiducial Positions and Internal Tumor Positions During Breath-Hold CT  

SciTech Connect

Purpose: For thoracic tumors, if four-dimensional computed tomography (4DCT) is unavailable, the internal margin can be estimated by use of breath-hold (BH) CT scans acquired at end inspiration (EI) and end expiration (EE). By use of external surrogates for tumor position, BH accuracy is estimated by minimizing the difference between respiratory extrema BH and mean equivalent-phase free breathing (FB) positions. We tested the assumption that an external surrogate for BH accuracy correlates with internal tumor positional accuracy during BH CT. Methods and Materials: In 16 lung cancer patients, 4DCT images, as well as BH CT images at EI and EE, were acquired. Absolute differences between BH and mean equivalent-phase (FB) positions were calculated for both external fiducials and gross tumor volume (GTV) centroids as metrics of external and internal BH accuracy, respectively, and the results were correlated. Results: At EI, the absolute difference between mean FB and BH fiducial displacement correlated poorly with the absolute difference between FB and BH GTV centroid positions on CT images (R{sup 2} = 0.11). Similarly, at EE, the absolute difference between mean FB and BH fiducial displacements correlated poorly with the absolute difference between FB and BH GTV centroid positions on CT images (R{sup 2} = 0.18). Conclusions: External surrogates for tumor position are not an accurate metric of BH accuracy for lung cancer patients. This implies that care should be taken when using such an approach because an incorrect internal margin could be generated.

Hunjan, Sandeep, E-mail: shunjan@mdanderson.or [Department of Radiation Physics, University of Texas M. D. Anderson Cancer Center, Houston, TX (United States); Starkschall, George; Prado, Karl; Dong Lei; Balter, Peter [Department of Radiation Physics, University of Texas M. D. Anderson Cancer Center, Houston, TX (United States)

2010-04-15T23:59:59.000Z

354

Halo mass distribution reconstruction across the cosmic web  

E-Print Network (OSTI)

We study the relation between halo mass and its environment from a probabilistic perspective. We find that halo mass depends not only on local dark matter density, but also on non-local quantities such as the cosmic web environment and the halo-exclusion effect. Given these accurate relations, we have developed the HADRON-code (Halo mAss Distribution ReconstructiON), a technique which permits us to assign halo masses to a distribution of haloes in three-dimensional space. This can be applied to the fast production of mock galaxy catalogues, by assigning halo masses, and reproducing accurately the bias for different mass cuts. The resulting clustering of the halo populations agree well with that drawn from the BigMultiDark $N$-body simulation: the power spectra are within 1-$\\sigma$ up to scales of $k=0.2\\,h\\,{\\rm Mpc}^{-1}$, when using augmented Lagrangian perturbation theory based mock catalogues. Only the most massive haloes show a larger deviation. For these, we find evidence of the halo-exclusion effect. ...

Zhao, Cheng; Chuang, Chia-Hsun; Prada, Francisco; Yepes, Gustavo; Tao, Charling

2015-01-01T23:59:59.000Z

355

Methodology for reconstruction of historical food consumption estimates  

SciTech Connect

This report was written to provide the food consumption methodology to be used in the Hanford Environmental Dose Reconstruction (HDER) Project beyond Phase I (which ended in July 1990). In Phase I (Callaway 1992), baseline food consumption estimates (grams per day) for 10 primary food types in the original 10-county study region were derived from the 1977--1978 National Food Consumption Survey (USDA 1983). The baseline estimates were multiplied by the 1945:1977 ratios to produce consumption estimates for 1945. This ratio backcasting method used in Phase I to project consumption estimates from 1977 back to 1945 will be refined using additional USDA data to improve and document the acceptability of the ratios for deriving backcast consumption estimates. The number of food types and population groups will be expanded to provide more disaggregated estimates of food consumption. Food consumption estimates will be developed for 1945, 1951, and 1957. A database of individual diets will be created from which daily diets will be randomly selected for use in the dose model to calculate doses for reference individuals.

Anderson, D.M.

1992-05-01T23:59:59.000Z

356

Benefits of PositionSensitive Detectors for Radioactive Source Detection  

E-Print Network (OSTI)

radiation portal monitors [1], coded aperture imaging systems [2], arrays of scintillating detectors [3, such as using images reconstructed from a coded aperture system to detect a point­source [2]. A mean difference, Senior Member, IEEE Abstract--There are many systems for counting photons such as gamma­rays emitted from

Scott, Clayton

357

An Approach for Optimal Goal Position Assignment in Vehicle Formations  

Science Journals Connector (OSTI)

In this paper one methodology to solve the goal position assignment (GPA) problem is developed, this is, to assign the corresponding goal position (desired position) for a group of vehicles, knowing the initial positions and the established formation ... Keywords: Assignment, Optimization, Quad-rotor, Vehicle formations

Luis García-Delgado; R. Gómez-Fuentes; A. García-Juárez; A. L. Leal-Cruz; D. Berman-Mendoza; A. Vera-Marquina; A. G. Rojas-Hernández

2014-01-01T23:59:59.000Z

358

A Radon-Nikodym Theorem for Completely Positive Maps  

E-Print Network (OSTI)

(h), respectively. According to the famous results of Stinespring [5] any (normalized) com- pletely positive map

Belavkin, Viacheslav P.

359

Rapid geometric modeling for visual simulation using semi-automated reconstruction from single image  

Science Journals Connector (OSTI)

This paper presents a novel algorithm that enables the semi-automatic reconstruction of human-made structures (e.g., buildings) into piecewise planar 3D models from a single image. This allows the models to be...

Chen Feng; Fei Deng; Vineet R. Kamat

2014-01-01T23:59:59.000Z

360

Reconstructing equation of state of dark energy with principal component analysis  

E-Print Network (OSTI)

We represent a method to reconstruct the equation of state for dark energy directly from observational Hubble parameter data in a nonparametric way. We use principal component analysis (PCA) to extract the signal from data with noise. In addition, we modify Akaike information criteria (AIC) to guarantee the quality of reconstruction and avoid over-fitting simultaneously. The results show that our method is robust in reconstruction of dark energy equation of state. Although current observational Hubble parameter data alone can not give a strong constraint yet, future observations with more accurate data can help to improve the quality of reconstruction significantly, which is consistent with the results of H.-R. Yu et al.

Qin, Hao-Feng; Wan, Hao-Yi; Zhang, Tong-Jie

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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361

Reconstructing Palladio's villas : an analysis of Palladio's villa design and construction process  

E-Print Network (OSTI)

The thesis is a presentation of a method of reconstruction using a computational device to represent and evaluate two of Palladio's un-built villas in three-dimensions. The first of The Four Books of Architecture contains ...

Sass, Lawrence

2000-01-01T23:59:59.000Z

362

Seismic tomography constraints on reconstructing the Philippine Sea Plate and its margin  

E-Print Network (OSTI)

The Philippine Sea Plate has been surrounded by subduction zones throughout Cenozoic time due to the convergence of the Eurasian, Pacific and Indian-Australian plates. Existing Philippine Sea Plate reconstructions have been made based primarily...

Handayani, Lina

2005-02-17T23:59:59.000Z

363

Reconstructing the Energy Landscape of a Distribution from Monte Carlo Samples  

E-Print Network (OSTI)

of the high energy portion of the tree, we need to generateconnects to lower energy nodes on the tree (Figure 5A) isestimate the tree and reconstruct the energy landscape from

Qing Zhou; Wing Hung Wong

2011-01-01T23:59:59.000Z

364

Reconstructing the Energy Landscape of a Distribution from Monte Carlo Samples  

E-Print Network (OSTI)

of the high energy portion of the tree, we need to generateconnects to lower energy nodes on the tree (Figure 5A) isestimate the tree and reconstruct the energy landscape from

Zhou, Qing; Wong, Wing Hung

2008-01-01T23:59:59.000Z

365

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

Science Journals Connector (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

366

Reconstructing the projected gravitational potential of Abell 1689 from X-ray measurements  

E-Print Network (OSTI)

Context. Galaxy clusters can be used as cosmological probes, but to this end, they need to be thoroughly understood. Combining all cluster observables in a consistent way will help us to understand their global properties and their internal structure. Aims. We provide proof of the concept that the projected gravitational potential of galaxy clusters can directly be reconstructed from X-ray observations. We also show that this joint analysis can be used to locally test the validity of the equilibrium assumptions in galaxy clusters. Methods. We used a newly developed reconstruction method, based on Richardson-Lucy deprojection, that allows reconstructing projected gravitational potentials of galaxy clusters directly from X-ray observations. We applied this algorithm to the well-studied cluster Abell 1689 and compared the gravitational potential reconstructed from X-ray observables to the potential obtained from gravitational lensing measurements. [...] Results. Assuming spherical symmetry and hydrostatic equili...

Tchernin, Celine; Meyer, Sven; Sarli, Eleonora; Eckert, Dominique; Bartelmann, Matthias

2015-01-01T23:59:59.000Z

367

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

368

VACT: Visualization-Aware CT Reconstruction Ziyi Zheng and Klaus Mueller, Senior Member, IEEE  

E-Print Network (OSTI)

Abstract-- Computed tomography (CT) reconstruction methods are often unaware of the requirements Medical routine frequently utilizes 3D visualization tools for diagnosis. Computed tomography (CT between the raw projection data and their visualization via vol- ume rendering. Our framework can

Mueller, Klaus

369

Reconstruction of individual thyroid doses to the Ukrainian subjects enrolled in the Chernobyl Tissue Bank  

Science Journals Connector (OSTI)

......movements over the radioactively contaminated area, diet composition and amount of foodstuffs being consumed). To reconstruct...IAEA-TECDOC-857. 48 Nosk B. S. , Prister B. S., Loboda M. V. Agrochemical and agroecological state of soils in Ukraine. (1994......

I. Likhtarov; G. Thomas; L. Kovgan; S. Masiuk; M. Chepurny; O. Ivanova; V. Gerasymenko; M. Tronko; T. Bogdanova; A. Bouville

2013-10-01T23:59:59.000Z

370

Positive Energy S A | Open Energy Information  

Open Energy Info (EERE)

A A Jump to: navigation, search Name Positive Energy S.A Place Athens, Greece Zip 115 27 Sector Buildings, Efficiency, Solar Product Developer of solar parks and implements energy efficiency measures for buildings in Greece and south-eastern Europe. Coordinates 37.97615°, 23.736415° 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":37.97615,"lon":23.736415,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

371

An Ergodic Dilation of Completely Positive Maps  

E-Print Network (OSTI)

We shall prove the following Stinespring-type theorem: there exists a triple $(\\pi,\\mathcal{H},\\mathbf{V})$ associated with an unital completely positive map $\\Phi:\\mathfrak{A}\\rightarrow \\mathfrak{A}$ on C* algebra $\\mathfrak{A}$ with unit, where $\\mathcal{H}$ is a Hilbert space, $\\pi:\\mathfrak{A\\rightarrow B}(\\mathcal{H})$ is a faithful representation and $\\mathbf{V}$ is a linear isometry on $\\mathcal{H}$ such that $\\pi(\\Phi(a)=\\mathbf{V}^*\\pi(a)\\mathbf{V}$ for all $a$ belong to $\\mathfrak{A}$. The Nagy dilation theorem, applied to isometry $\\mathbf{V}$, allows to construct a dilation of ucp-map, $\\Phi$, in the sense of Arveson, that satisfies ergodic properties of a $\\Phi $-invariante state $\\phi$ on $\\mathfrak{A}$, if $\\Phi$ admit a $\\phi $-adjoint.

Pandiscia, Carlo

2011-01-01T23:59:59.000Z

372

Quantum Exclusion of Positive Cosmological Constant?  

E-Print Network (OSTI)

We show that a positive cosmological constant is incompatible with the quantum-corpuscular resolution of de Sitter metric in form of a coherent state. The reason is very general and is due to the quantum self-destruction of the coherent state because of the scattering of constituent graviton quanta. This process creates an irreversible quantum clock, which precludes eternal de Sitter. It also eliminates the possibility of Boltzmann brains and Poincare recurrences. This effect is expected to be part of any microscopic theory that takes into account the quantum corpuscular structure of the cosmological background. This observation puts the cosmological constant problem in a very different light, promoting it, from a naturalness problem, into a question of quantum consistency. We are learning that quantum gravity cannot tolerate exceedingly-classical sources.

Gia Dvali; Cesar Gomez

2014-12-27T23:59:59.000Z

373

Magnetic Moment of the Positive Muon  

Science Journals Connector (OSTI)

The magnetic moment of the positive muon has been redetermined in terms of proton moments using a precession technique. The sensitivity achieved yields an error of 13 parts per million. The muons are stopped in various targets in a homogeneous magnetic field. The anisotropic distribution of the decay electrons relative to the muon spin direction permits the measurement of the spin precession frequency. The proton spin resonance is measured in the same field, yielding f?fp=3.18338±0.00004. This result may be combined with that of other experiments, the muon g factor, and the ratio of electron cyclotron frequency to proton resonance, fefp, to obtain a more precise evaluation of the muon mass in terms of electron masses. m?me equals 206.765±0.005.

David P. Hutchinson; Jack Menes; G. Shapiro; A. M. Patlach

1963-08-01T23:59:59.000Z

374

Two-dimensional position sensitive radiation detectors  

DOE Patents (OSTI)

Nuclear reaction detectors capable of position sensitivity with submillimeter resolution in two dimensions are each provided by placing arrays of scintillation or wave length shifting optical fibers formed of a plurality of such optical fibers in a side-by-side relationship in X and Y directions with a layer of nuclear reactive material operatively associated with surface regions of the optical fiber arrays. Each nuclear reaction occurring in the layer of nuclear reactive material produces energetic particles for simultaneously providing a light pulse in a single optical fiber in the X oriented array and in a single optical fiber in the Y oriented array. These pulses of light are transmitted to a signal producing circuit for providing signals indicative of the X-Y coordinates of each nuclear event.

Mihalczo, John T. (Oak Ridge, TN)

1994-01-01T23:59:59.000Z

375

Position, rotation, and intensity invariant recognizing method  

DOE Patents (OSTI)

A method for recognizing the presence of a particular target in a field of view which is target position, rotation, and intensity invariant includes the preparing of a target-specific invariant filter from a combination of all eigen-modes of a pattern of the particular target. Coherent radiation from the field of view is then imaged into an optical correlator in which the invariant filter is located. The invariant filter is rotated in the frequency plane of the optical correlator in order to produce a constant-amplitude rotational response in a correlation output plane when the particular target is present in the field of view. Any constant response is thus detected in the output The U.S. Government has rights in this invention pursuant to Contract No. DE-AC04-76DP00789 between the U.S. Department of Energy and AT&T Technologies, Inc.

Ochoa, Ellen (Pleasanton, CA); Schils, George F. (San Ramon, CA); Sweeney, Donald W. (Alamo, CA)

1989-01-01T23:59:59.000Z

376

Non-axisymmetric equilibrium reconstruction for stellarators, reversed field pinches and tokamaks  

SciTech Connect

Axisymmetric equilibrium reconstruction using magnetohydrodynamic equilibrium solutions to the Grad Shafranov equation has long been an important tool for interpreting tokamak experiments. This paper describes recent results in non-axisymmetric (three-dimensional) equilibrium reconstruction of nominally axisymmetric plasmas (tokamaks and reversed field pinches (RFPs)), and fully non-axisymmetric plasmas (stellarators). Results from applying the V3FIT code to CTH and HSX stellarator plasmas, RFX-mod RFP plasmas and the DIII-D tokamak are presented.

Hanson, James D. [Auburn University, Auburn, Alabama; Anderson, D.T. [University of Wisconsin, Madison; Cianciosa, M. [Auburn University, Auburn, Alabama; Franz, P. [EURATOM / ENEA, Italy; Harris, J. H. [Oak Ridge National Laboratory (ORNL); Hartwell, G. H. [Auburn University, Auburn, Alabama; Hirshman, Steven Paul [ORNL; Knowlton, Stephen F. [Auburn University, Auburn, Alabama; Lao, Lang L. [General Atomics, San Diego; Lazarus, Edward Alan [ORNL; Marrelli, L. [Association EURATOM ENEA Fusion, Consorzio RFX, Padua, Italy; Maurer, D. A. [Auburn University, Auburn, Alabama; Schmitt, J. C. [Princeton Plasma Physics Laboratory (PPPL); Sontag, A. C. [Oak Ridge National Laboratory (ORNL); Stevenson, B. A. [Auburn University, Auburn, Alabama; Terranova, D. [Association EURATOM ENEA Fusion, Consorzio RFX, Padua, Italy

2013-01-01T23:59:59.000Z

377

The Acropolis at Babylon: A Reconstruction during the Late 6th Century B.C.  

E-Print Network (OSTI)

, Babylon served as a small client state to the powerful Assyrian King Shamshi-Adad. This changed when Hammurabi consolidated control of the surrounding kingdoms while maintaining a face of allegiance to the more powerful Assyria. After the death... who assisted me throughout the numerous computer problems that sometimes held up my digital reconstructions. All John asked for was a palace. Nebuchadnezzar's Northern Palace has been reconstructed in his honor. Thanks also to the immense...

Parkoff, Justin 1981-

2012-12-07T23:59:59.000Z

378

(2×2) reconstructions of the {111} polar surfaces of GaAs  

Science Journals Connector (OSTI)

Ab initio total-energy calculations were used to examine (2×2) reconstruction models for the (111) and (1¯1¯1¯) surfaces of GaAs. For the (111) surface the lowest-energy Ga-vacancy geometry is determined; several mechanisms for Ga-vacancy formation are examined and other reconstructions are discussed. For the (1¯1¯1¯) surface it is shown that the As-vacancy model is unlikely and other geometries are considered.

E. Kaxiras; Y. Bar-Yam; J. D. Joannopoulos; K. C. Pandey

1986-03-15T23:59:59.000Z

379

Binary reconstruction of the heart chambers from biplane angiographic image sequences  

SciTech Connect

The aim of this work is the three-dimensional (3-D) reconstruction of the left or right heart chamber from digital biplane angiograms. The approach used, the binary reconstruction, exploits the density information of subtracted ventriculograms from two orthogonal views in addition to the ventricular contours. The ambiguity of the problem is largely reduced by incorporating a priori knowledge of human ventricles. A model-based reconstruction program is described that is applicable to routinely acquired biplane ventriculographic studies. Prior to reconstruction, several geometric and densitometric imaging errors are corrected. The finding of corresponding density profiles and anatomical landmarks is supported by a biplane image pairing procedure that takes the movement of the gantry system into account. Absolute measurements are based on geometric isocenter calibration and a slice-wise density calibration technique. The reconstructed ventricles allow 3-D visualization and regional wall motion analysis independently of the gantry setting. The method is applied to clinical angiograms and tested in left- and right-ventricular phantoms yielding a well shape conformity even with few model information. The results indicate that volumes of binary reconstructed ventricles are less projection-dependent compared to volume data derived by purely contour-based methods. A limitations is that the heart chamber must not be superimposed by other dye-filled structures in both projections.

Prause, G.P.M.; Onnasch, D.G.W. [Univ. of Kiel (Germany). Clinic of Pediatric Cardiology] [Univ. of Kiel (Germany). Clinic of Pediatric Cardiology

1996-08-01T23:59:59.000Z

380

A Parallel Reconstructed Discontinuous Galerkin Method for the Compressible Flows on Aritrary Grids  

SciTech Connect

A reconstruction-based discontinuous Galerkin method is presented for the solution of the compressible Navier-Stokes equations on arbitrary grids. In this method, an in-cell reconstruction is used to obtain a higher-order polynomial representation of the underlying discontinuous Galerkin polynomial solution and an inter-cell reconstruction is used to obtain a continuous polynomial solution on the union of two neighboring, interface-sharing cells. The in-cell reconstruction is designed to enhance the accuracy of the discontinuous Galerkin method by increasing the order of the underlying polynomial solution. The inter-cell reconstruction is devised to remove an interface discontinuity of the solution and its derivatives and thus to provide a simple, accurate, consistent, and robust approximation to the viscous and heat fluxes in the Navier-Stokes equations. A parallel strategy is also devised for the resulting reconstruction discontinuous Galerkin method, which is based on domain partitioning and Single Program Multiple Data (SPMD) parallel programming model. The RDG method is used to compute a variety of compressible flow problems on arbitrary meshes to demonstrate its accuracy, efficiency, robustness, and versatility. The numerical results demonstrate that this RDG method is third-order accurate at a cost slightly higher than its underlying second-order DG method, at the same time providing a better performance than the third order DG method, in terms of both computing costs and storage requirements.

Hong Luo; Amjad Ali; Robert Nourgaliev; Vincent A. Mousseau

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

Curvature dark energy reconstruction through different cosmographic distance definitions  

E-Print Network (OSTI)

In the context of $f(\\mathcal{R})$ gravity, dark energy is a geometrical fluid with negative equation of state. Since the function $f(\\mathcal{R})$ is not known \\emph{a priori}, the need of a model independent reconstruction of its shape represents a relevant technique to determine which $f(\\mathcal{R})$ model is really favored with respect to others. To this aim, we relate cosmography to a generic $f(\\mathcal R)$ and its derivatives in order to provide a model independent investigation at redshift $z \\sim 0$. Our analysis is based on the use of three different cosmological distance definitions, in order to alleviate the duality problem, i.e. the problem of which cosmological distance to use with specific cosmic data sets. We therefore consider the luminosity, $d_L$, flux, $d_F$, and angular, $d_A$, distances and we find numerical constraints by the Union 2.1 supernovae compilation and measurement of baryonic acoustic oscillations, at $z_{BAO}=0.35$. We notice that all distances reduce to the same expression, i.e. $d_{L;F;A}\\sim\\frac{1}{\\mathcal H_0}z$, at first order. Thus, to fix the cosmographic series of observables, we impose the initial value of $H_0$ by fitting $\\mathcal H_0$ through supernovae only, in the redshift regime $ztheoretical bounds, while its variation, namely the jerk parameter, is compatible with $j_0>1$. Finally, we infer the functional form of $f(\\mathcal{R})$ by means of a truncated polynomial approximation, in terms of fourth order scale factor $a(t)$.

Salvatore Capozziello; Mariafelicia De Laurentis; Orlando Luongo

2014-06-26T23:59:59.000Z

382

Reducing power transients in diesel-electric dynamically positioned ships using re-positioning  

E-Print Network (OSTI)

Reducing power transients in diesel-electric dynamically positioned ships using re--A thrust allocation method with a functionality to assist power management systems by using the hull the power consumption in the thrusters when a sharp increase in power consumption is demanded elsewhere

Johansen, Tor Arne

383

POSITIVE ION CURRENTS IN THE POSITIVE COLUMN OF THE GLOW-DISCHARGE IN THE NOBLE GASES  

Science Journals Connector (OSTI)

...thin glass tubes. The discharge tube, diameter 6 cm...potentials. In the mercury arc the positive ion part...the case in the neon discharge. Similar curves were...and the body of the discharge, looking much like...efficiency for the photo- electric effect than has ever...

W. Uyterhoeven

1929-01-01T23:59:59.000Z

384

GALAXY HALO TRUNCATION AND GIANT ARC SURFACE BRIGHTNESS RECONSTRUCTION IN THE CLUSTER MACSJ1206.2-0847  

SciTech Connect

In this work, we analyze the mass distribution of MACSJ1206.2-0847, particularly focusing on the halo properties of its cluster members. The cluster appears relaxed in its X-ray emission, but has a significant amount of intracluster light that is not centrally concentrated, suggesting that galaxy-scale interactions are still ongoing despite the overall relaxed state. The cluster lenses 12 background galaxies into multiple images and one galaxy at z = 1.033 into a giant arc and its counterimage. The multiple image positions and the surface brightness (SFB) distribution of the arc, which is bent around several cluster members, are sensitive to the cluster galaxy halo properties. We model the cluster mass distribution with a Navarro-Frenk-White profile and the galaxy halos with two parameters for the mass normalization and the extent of a reference halo assuming scalings with their observed near-infrared light. We match the multiple image positions at an rms level of 0.''85 and can reconstruct the SFB distribution of the arc in several filters to a remarkable accuracy based on this cluster model. The length scale where the enclosed galaxy halo mass is best constrained is about 5 effective radii-a scale in between those accessible to dynamical and field strong-lensing mass estimates on the one hand and galaxy-galaxy weak-lensing results on the other hand. The velocity dispersion and halo size of a galaxy with m{sub 160W,AB} = 19.2 and M{sub B,Vega} = -20.7 are {sigma} = 150 km s{sup -1} and r Almost-Equal-To 26 {+-} 6 kpc, respectively, indicating that the halos of the cluster galaxies are tidally stripped. We also reconstruct the unlensed source, which is smaller by a factor of {approx}5.8 in area, demonstrating the increase in morphological information due to lensing. We conclude that this galaxy likely has star-forming spiral arms with a red (older) central component.

Eichner, Thomas; Seitz, Stella; Monna, Anna [Universitaets-Sternwarte Muenchen, Scheinerstr. 1, D-81679 Muenchen (Germany); Suyu, Sherry H. [Department of Physics, University of California, Santa Barbara, CA 93106 (United States); Halkola, Aleksi [Institute of Medical Engineering, University of Luebeck, Ratzeburger Allee 160 23562 Luebeck (Germany); Umetsu, Keiichi [Institute of Astronomy and Astrophysics, Academia Sinica, P.O. Box 23-141, Taipei 10617, Taiwan (China); Zitrin, Adi [Institut fuer Theoretische Astrophysik, ZAH, Albert-Ueberle-Strasse 2, D-69120 Heidelberg (Germany); Coe, Dan; Postman, Marc; Koekemoer, Anton; Bradley, Larry [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21208 (United States); Rosati, Piero [ESO-European Southern Observatory, D-85748 Garching bei Muenchen (Germany); Grillo, Claudio; Host, Ole [Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen (Denmark); Balestra, Italo [Max-Planck-Institut fuer Extraterrestrische Physik, Giessenbachstrasse, D-85748 Garching (Germany); Zheng, Wei; Lemze, Doron [Department of Physics and Astronomy, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218 (United States); Broadhurst, Tom [Department of Theoretical Physics, University of the Basque Country, P.O. Box 644, E-48080 Bilbao (Spain); Moustakas, Leonidas [Jet Propulsion Laboratory, California Institute of Technology, MS 169-327, Pasadena, CA 91109 (United States); Molino, Alberto [Instituto de Astrofisica de Andalucia (CSIC), C/Camino Bajo de Huetor 24, Granada E-18008 (Spain); and others

2013-09-10T23:59:59.000Z

385

Method of using polysilane positive photoresist materials  

DOE Patents (OSTI)

New polysilane copolymers comprise recurring units of --Si(X)(Y)-- and Si(A)(B)--, Si(X)(Y) being different from Si(A)(B), wherein X and Y together have 1-13 carbon atoms, and X and Y each independently is hydrogen, alkyl, cycloalkyl, phenyl, alkylphenyl, or phenylalkyl, with the proviso that only one of X and Y contains a phenyl moiety, or together X and Y are an alkylene group forming a ring with the adjoining Si atom, and wherein A and B together have 3-13 carbon atoms, and A and B each independently is alkyl or cycloalkyl, with the proviso (a) that when one of A and B is ethyl, the other is not methyl or ethyl, and (b) that when one of A ad B is n-propyl and the other is methyl, X and Y are not both methyl. Corresponding homopolysilanes are also provided. Upon ultraviolet irradiation, they photodepolymerize to form volatile products. As a result, they represent a new class of photoresists which enable direct formation of a positive image eliminating the heretofore required development step.

Harrah, L.A.; Zeigler, J.M.

1986-05-06T23:59:59.000Z

386

Motorized manipulator for positioning a TEM specimen  

DOE Patents (OSTI)

The invention relates to a motorized manipulator for positioning a TEM specimen holder with sub-micron resolution parallel to a y-z plane and rotating the specimen holder in the y-z plane, the manipulator comprising a base (2), and attachment means (30) for attaching the specimen holder to the manipulator, characterized in that the manipulator further comprises at least three nano-actuators (3.sup.a, 3.sup.b, 3.sup.c) mounted on the base, each nano-actuator showing a tip (4.sup.a, 4.sup.b, 4.sup.c), the at least three tips defining the y-z plane, each tip capable of moving with respect to the base in the y-z plane; a platform (5) in contact with the tips of the nano-actuators; and clamping means (6) for pressing the platform against the tips of the nano-actuators; as a result of which the nano-actuators can rotate the platform with respect to the base in the y-z plane and translate the platform parallel to the y-z plane.

Schmid, Andreas Karl (Berkeley, CA); Andresen, Nord (Berkeley, CA)

2010-12-14T23:59:59.000Z

387

Accurate registration of random radiographic projections based on three spherical references for the purpose of few-view 3D reconstruction  

SciTech Connect

Precise registration of radiographic projection images acquired in almost arbitrary geometries for the purpose of three-dimensional (3D) reconstruction is beset with difficulties. We modify and enhance a registration method [R. Schulze, D. D. Bruellmann, F. Roeder, and B. d'Hoedt, Med. Phys. 31, 2849-2854 (2004)] based on coupling a minimum amount of three reference spheres in arbitrary positions to a rigid object under study for precise a posteriori pose estimation. Two consecutive optimization procedures (a, initial guess; b, iterative coordinate refinement) are applied to completely exploit the reference's shadow information for precise registration of the projections. The modification has been extensive, i.e., only the idea of using the sphere shadows to locate each sphere in three dimensions from each projection was retained whereas the approach to extract the shadow information has been changed completely and extended. The registration information is used for subsequent algebraic reconstruction of the 3D information inherent in the projections. We present a detailed mathematical theory of the registration process as well as simulated data investigating its performance in the presence of error. Simulation of the initial guess revealed a mean relative error in the critical depth coordinate ranging between 2.1% and 4.4%, and an evident error reduction by the subsequent iterative coordinate refinement. To prove the applicability of the method for real-world data, algebraic 3D reconstructions from few ({<=}9) projection radiographs of a human skull, a human mandible and a teeth-containing mandible segment are presented. The method facilitates extraction of 3D information from only few projections obtained from off-the-shelf radiographic projection units without the need for costly hardware. Technical requirements as well as radiation dose are low.

Schulze, Ralf; Heil, Ulrich; Weinheimer, Oliver; Gross, Daniel; Bruellmann, Dan; Thomas, Eric; Schwanecke, Ulrich; Schoemer, Elmar [Department of Oral Surgery (and Oral Radiology), Johannes Gutenberg-University, Dental School, Mainz 55131 (Germany); Institute of Computer Science, Johannes Gutenberg-University, Mainz 55131 (Germany); Department of Oral Surgery (and Oral Radiology), Johannes Gutenberg-University, Dental School, Mainz 55131 (Germany); Department of Design, Computer Science and Media, University of Applied Sciences, Wiesbaden 65195 (Germany); Institute of Computer Science, Johannes Gutenberg-University, Mainz 55131 (Germany)

2008-02-15T23:59:59.000Z

388

Calculation of nuclear masses using image reconstruction techniques  

SciTech Connect

Several methods have been developed to calculate and predict nuclear masses over the last 70 years. The accuracy of the present state-of-the-art nuclear mass models is impressive, because these quantities can be calculated with an average 0.05 % precision. However this precision level is still insufficient to deal with nuclear reactions of astrophysical interest, especially r-process ones. Different approaches exist to calculate nuclear masses, ranging from the simple Bethe-Weizsaecker Liquid Drop Formula (LDM) to the sophisticated Finite Range Droplet Model calculations or the microscopic Hartree-Fock-Bogoliuvob techniques from first principles, using Skyrme or Gogny parametrizations of the nucleon-nucleon interaction. Here we suggest a new method to calculate this fundamental property of the atomic nucleus, using a completely phenomenological point of view. Our method is based in the analysis of the differences between measured masses and LDM predictions, which contains information related to those ingredients not taken into account in the LDM formula, such as shell closures, nuclear deformations and residual nuclear interactions. The differences are arranged in a two dimensional plot which can be viewed as an incomplete image of the full chart of nuclides, equivalent to a product of the full image and a binary mask. In order to remove the distortions produced by this mask we employ an algorithm, well known in astronomy, used to remove artificial effects present in the astrophysical images collected through telescopes. This algorithm is called the CLEAN method. It is one of a number of methods which exists to deconvolve undesirable effects in images and to extrapolate or reconstruct missing parts in them. By using the CLEAN method we can fit measured masses with an r.m.s error of less than 100 keV. We have performed several checks and concluded that its utilization must be carried out carefully in order to obtain reliable results in the zone of unknown masses between the driplines. We also outline potential applications of the present approach.

Barea, J.; Frank, A.; Hirsch, J. G.; Lopez, J. C.; Morales, I.; Mendoza, J. [Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Apartado Postal 70-543, 04510 Mexico, D.F. (Mexico); Velazquez, V. [Facultad de Ciencias, Universidad Nacional Autonoma de Mexico, 04510 Mexico, D.F. (Mexico)

2007-10-26T23:59:59.000Z

389

NanoSciences Fondation Post-doc Position 2010  

E-Print Network (OSTI)

NanoSciences Fondation Post-doc Position ­ 2010 Postdoctoral position on SQUID microscopy The SuperNanoCharac project of the NanoSciences Fondation (Grenoble, France) seeks outstanding candidates for a postdoctoral

Canet, Léonie

390

Transient signal detection using GPS position time series  

E-Print Network (OSTI)

Continuously operating Global Positioning System (GPS) networks record station position changes with millimeter-level accuracy and have revealed transient deformations on various spatial and temporal scales. However, the ...

Ji, Kang Hyeun

2011-01-01T23:59:59.000Z

391

Positive muon behavior in KCl with and without F centers  

Science Journals Connector (OSTI)

Positive muon behavior in KCl containing F centers has been studied. The muon spin depolarization rate showed a maximum near ... probably due to the fact that free positive muons are trapped by F centers in KCl. ...

Masao Doyama; T. Hatano; Y. Suzuki; R. Nakai; R. Yamamoto…

1984-01-01T23:59:59.000Z

392

GammaSense: Infrastructureless Positioning Using Background Radioactivity  

Science Journals Connector (OSTI)

We introduce the harvesting of natural background radioactivity for positioning. Using a standard Geiger-Müller counter as sensor, we fingerprint the natural levels of gamma radiation with the aim of then roughly pinpointing the position of a client ...

Doina Bucur; Mikkel Baun Kjærgaard

2008-10-01T23:59:59.000Z

393

FACULTY POSITION IN INORGANIC CHEMISTRY Department of Chemistry  

E-Print Network (OSTI)

FACULTY POSITION IN INORGANIC CHEMISTRY Department of Chemistry Syracuse University The Department of Chemistry at Syracuse University invites applications for a tenure track faculty position at the Assistant Professor level in inorganic chemistry with specialization in materials chemistry (broadly defined

Doyle, Robert

394

Icon Abacus: Positional Display of Document Attributes Eric A. Bier  

E-Print Network (OSTI)

Icon Abacus: Positional Display of Document Attributes Eric A. Bier Palo Alto Research Center, Inc This paper presents icon abacus, a space-efficient technique for displaying document attributes by automatic positioning of document icons. It displays the value of an attribute by using position on a single axis

395

Combining Decision Procedures for Positive Theories Sharing Constructors  

E-Print Network (OSTI)

Combining Decision Procedures for Positive Theories Sharing Constructors Franz Baader 1 and Cesare whose positive theories are de- cidable, how can one obtain a decision procedure for the positive theory equational theories. 1 Introduction Built-in decision procedures for certain types of theories (like

Baader, Franz

396

Reconstruction of the Mesopotamian coastline in the Holocene  

SciTech Connect

At the end of the last glacial period, a major marine transgression inundated the entire Persian Gulf. The precise position of the coastline with time has been the subject of several alternate interpretations. Utilizing sea level curves, shallow well data, sediment loads, satellite imagery, geomorphology, archeologic information, and historical data; the transgression and subsequent delta progradation at the head of the Persian Gulf can be delineated. The maximum transgression, at about 6000 B.P., extended about 400 km inland from the present shoreline. After 6000 B.P., the Shatt-al-Arab Delta prograded southward to its current position. Previous uncertainty about the extent of innundation and sedimentation in this archaeologically important area is, in part, the result of assymetric infilling of the embayment by large quantities of sediment from the Karun-Karkheh-Jarrahi River system. This portion of the delta prograded rapidly to the south, isolating a large portion of the embayment from the rest of the Gulf. The Hawzr marshes of today are the remnant of the freshwater lake(s) that formed in this fashion. The impact of these events on our knowledge of early human occupation and the development of civilization in the Tigris-Euphrates valley, is profound.

Cooke, G.A.

1985-01-01T23:59:59.000Z

397

Exact Reconstruction From Uniformly Attenuated Helical Cone-Beam Projections in SPECT  

SciTech Connect

In recent years the development of cone-beam reconstruction algorithms has been an active research area in x-ray computed tomography (CT), and significant progress has been made in the advancement of algorithms. Theoretically exact and computationally efficient analytical algorithms can be found in the literature. However, in single photon emission computed tomography (SPECT), published cone-beam reconstruction algorithms are either approximate or involve iterative methods. The SPECT reconstruction problem is more complicated due to degradations in the imaging detection process, one of which is the effect of attenuation of gamma ray photons. Attenuation should be compensated for to obtain quantitative results. In this paper, an analytical reconstruction algorithm for uniformly attenuated cone-beam projection data is presented for SPECT imaging. The algorithm adopts the DBH method, a procedure consisting of differentiation and backprojection followed by a finite inverse cosh-weighted Hilbert transform. The significance of the proposed approach is that a selected region of interest can be reconstructed even with a detector with a reduced field of view. The algorithm is designed for a general trajectory. However, to validate the algorithm, a numerical study was performed using a helical trajectory. The implementation is efficient and the simulation result is promising.

Gullberg, Grant T; Huang, Qiu; You, Jiangsheng; Zeng, Gengsheng L.

2008-12-18T23:59:59.000Z

398

Region-of-interest reconstructions from truncated 3D x-ray projections  

E-Print Network (OSTI)

This paper introduces a method of region-of-interest (ROI) reconstruction from truncated 3D X-ray projections, consisting of a wavelet-based regularized iterative reconstruction procedure that, under appropriate conditions, converges within the ROI to an exact or highly accurate solution. ROI tomography is motivated by the goal to reduce the overall radiation exposure when primarily the reconstruction of a specified region rather than the entire object is required. Our approach assumes that only the 3D truncated X-ray projections, i.e., the projection data restricted to the image of the ROI, are known and does not assume any previous knowledge about the density function, except for standard assumptions about integrability and regularity needed to ensure that forward and backward transforms are well defined. We provide rigorous theoretical justification for the convergence of our regularized reconstruction algorithm in the continuous setting and prove the existence of a critical radius of a spherical ROI that ensures the convergence of the algorithm. Theoretical results are validated numerically using simulated acquisition and truncation of projection data for various acquisition geometries and ROI sizes and locations. We provide a numerical analysis of the ROI reconstruction stability as a function of the ROI size, showing that our algorithm converges also for ROI sizes which are rather small with respect to the support of the density function.

Robert Azencott; Bernhard G. Bodmann; Demetrio Labate; Anando Sen; Daniel Vera

2015-02-04T23:59:59.000Z

399

A Tree-Ring Reconstruction of the Salinity Gradient in the Northern Estuary of San Francisco Bay  

E-Print Network (OSTI)

Ring Reconstruction of the Salinity Gradient in the Northernof the seasonal salinity gradient, or low salinity zone (the longitudinal salinity gradient in the northern estuary (

2011-01-01T23:59:59.000Z

400

Three-Dimensional (3-D) Reconstructions of EISCAT IPS Velocity Data in the Declining Phase of Solar Cycle 23  

E-Print Network (OSTI)

computer assisted tomog- raphy (C.A.T. ) solar-windassisted to- mography (C.A.T. ) reconstruction program incorporating a time-dependent kinematic solar-

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

Reconstruction of microbial and environmental conditions in an Australian hypersaline ecosystem from the mid-Pleistocene through the present  

E-Print Network (OSTI)

plant community composition As discussed in chapter 2, many palaeo-climate reconstructions for Australia are biased toward data gathered from offshore

Jones, Claudia Meredith

2011-01-01T23:59:59.000Z

402

Transitioning to Peace: A Population-Based Survey on Attitudes About Social Reconstruction and Justice in Northern Uganda  

E-Print Network (OSTI)

Reconstruction in Northern Uganda. Human Rights Center,and Justice in Northern Uganda. International Center forAND JUSTICE IN NORTHERN UGANDA DECEMBER 2010 HUMAN RIGHTS

Vinck, Patrick; Pham, Phuong N

2010-01-01T23:59:59.000Z

403

Inferring planar disorder in close-packed structures via -machine spectral reconstruction theory: examples from simulated diffraction patterns  

Science Journals Connector (OSTI)

-Machine spectral reconstruction theory, a method for finding planar disorder in close-packed structures, is applied to four simulated diffraction patterns.

Varn, D.P.

2013-05-17T23:59:59.000Z

404

Reconstruction and Visualization of Fiber and Laminar Structure inthe Normal Human Heart from Ex Vivo DTMRI Data  

SciTech Connect

Background - The human heart is composed of a helicalnetwork of muscle fibers. These fibers are organized to form sheets thatare separated by cleavage surfaces. This complex structure of fibers andsheets is responsible for the orthotropic mechanical properties ofcardiac muscle. The understanding of the configuration of the 3D fiberand sheet structure is important for modeling the mechanical andelectrical properties of the heart and changes in this configuration maybe of significant importance to understand the remodeling aftermyocardial infarction.Methods - Anisotropic least square filteringfollowed by fiber and sheet tracking techniques were applied to DiffusionTensor Magnetic Resonance Imaging (DTMRI) data of the excised humanheart. The fiber configuration was visualized by using thin tubes toincrease 3-dimensional visual perception of the complex structure. Thesheet structures were reconstructed from the DTMRI data, obtainingsurfaces that span the wall from the endo- to the epicardium. Allvisualizations were performed using the high-quality ray-tracing softwarePOV-Ray. Results - The fibers are shown to lie in sheets that haveconcave or convex transmural structure which correspond to histologicalstudies published in the literature. The fiber angles varied depending onthe position between the epi- and endocardium. The sheets had a complexstructure that depended on the location within the myocardium. In theapex region the sheets had more curvature. Conclusions - A high-qualityvisualization algorithm applied to demonstrated high quality DTMRI datais able to elicit the comprehension of the complex 3 dimensionalstructure of the fibers and sheets in the heart.

Rohmer, Damien; Sitek, Arkadiusz; Gullberg, Grant T.

2006-12-18T23:59:59.000Z

405

Holographic Ricci dark energy: Current observational constraints, quintom feature, and the reconstruction of scalar-field dark energy  

Science Journals Connector (OSTI)

In this work, we consider the cosmological constraints on the holographic Ricci dark energy proposed by Gao et al. [Phys. Rev. D 79, 043511 (2009)], by using the observational data currently available. The main characteristic of holographic Ricci dark energy is governed by a positive numerical parameter ? in the model. When ?dark energy will exhibit a quintomlike behavior; i.e., its equation of state will evolve across the cosmological-constant boundary w=-1. The parameter ? can be determined only by observations. Thus, in order to characterize the evolving feature of dark energy and to predict the fate of the Universe, it is of extraordinary importance to constrain the parameter ? by using the observational data. In this paper, we derive constraints on the holographic Ricci dark energy model from the latest observational data including the Union sample of 307 type Ia supernovae, the shift parameter of the cosmic microwave background given by the five-year Wilkinson Microwave Anisotropy Probe observations, and the baryon acoustic oscillation measurement from the Sloan Digital Sky Survey. The joint analysis gives the best-fit results (with 1? uncertainty): ?=0.359-0.025+0.024 and ?m0=0.318-0.024+0.026. That is to say, according to the observations, the holographic Ricci dark energy takes on the quintom feature. Finally, in light of the results of the cosmological constraints, we discuss the issue of the scalar-field dark energy reconstruction, based on the scenario of the holographic Ricci vacuum energy.

Xin Zhang

2009-05-08T23:59:59.000Z

406

Fig. 1. Illustration of an indoor positioning system. UWB Positioning Using Six-port Technology and a  

E-Print Network (OSTI)

Fig. 1. Illustration of an indoor positioning system. UWB Positioning Using Six-port Technology--This paper presents a short-range positioning system based on six-port technology and the corresponding by utilizing both the impulse signal and the wideband phase discrimination characteristic of a six-port circuit

Frigon, Jean-François

407

Reconstruction from Uniformly Attenuated SPECT Projection Data Using the DBH Method  

SciTech Connect

An algorithm was developed for the two-dimensional (2D) reconstruction of truncated and non-truncated uniformly attenuated data acquired from single photon emission computed tomography (SPECT). The algorithm is able to reconstruct data from half-scan (180o) and short-scan (180?+fan angle) acquisitions for parallel- and fan-beam geometries, respectively, as well as data from full-scan (360o) acquisitions. The algorithm is a derivative, backprojection, and Hilbert transform (DBH) method, which involves the backprojection of differentiated projection data followed by an inversion of the finite weighted Hilbert transform. The kernel of the inverse weighted Hilbert transform is solved numerically using matrix inversion. Numerical simulations confirm that the DBH method provides accurate reconstructions from half-scan and short-scan data, even when there is truncation. However, as the attenuation increases, finer data sampling is required.

Huang, Qiu; You, Jiangsheng; Zeng, Gengsheng L.; Gullberg, Grant T.

2008-03-20T23:59:59.000Z

408

Reconstruction of the null-test for the matter density perturbations  

E-Print Network (OSTI)

We systematically study the null test for the growth rate data first presented in [1] and we generalize it for modified gravity models. We reconstruct it using various combinations of data sets, such as the $f\\sigma_8$ and $H(z)$ or Type Ia supernovae (SnIa) data. We perform the reconstruction in two different ways, either by directly binning the data or by fitting various dark energy models. We also examine how well the null test can be reconstructed by future data by creating mock catalogs based on the cosmological constant model, a model with strong dark energy perturbations, the $f(R)$ and $f(G)$ models, and the large void LTB model that exhibit different evolution of the matter perturbations. We find that with future data similar to an LSST-like survey, the null test will be able to successfully discriminate between these different cases at the $5\\sigma$ level.

Savvas Nesseris; Domenico Sapone; Juan García-Bellido

2014-10-01T23:59:59.000Z

409

Hybrid approach to tomographic reconstruction of bubbles in two-phase flows using Algebraic Reconstruction Technique (ART), Genetic Algorithm (GA), and Simplex Method  

E-Print Network (OSTI)

Percentages of Simplex. . . . 18 18 . . 20 25 . . . 25 CHAPTER Page 3. 6 Radon Transformation of Elliptical Bubbles . . . . . . . 3. 7 Rotated Bubble Phantom and Its Reconstruction . 29 31 IV SUMMARY AND CONCLUSION. . . . 39 4. 1 Summary. 4 2...-ordinate axis for the projection function P Number of Projection angles P Number of chromosomes Pj Distance of the chord from the center rj Radius of each circular basis function R Number of rays per projection X Radon Transformation of a function s A...

Athirathnam, Rajesh

2012-06-07T23:59:59.000Z

410

Valence-transition-induced 5×5 surface reconstruction of Sm(0001)  

Science Journals Connector (OSTI)

Single-crystal SM(0001) surfaces have been grown epitaxially on Mo(110). At low temperatures LEED shows a 5×5 surface reconstruction. This new type of valence-transition-induced reconstruction corresponds to a 25% expansion of the interatomic distances in the topmost hexagonal surface layer. At room temperature the 5×5 LEED pattern disappears due to a disordering of the surface. This suggests a very low melting temperature for the surface which may have implications for the understanding of the anomalous melting temperature of Sm metal.

A. Stenborg; J. N. Andersen; O. Björneholm; A. Nilsson; N. Mårtensson

1989-07-10T23:59:59.000Z

411

Calibration of Muon Reconstruction Algorithms Using an External Muon Tracking System at the Sudbury Neutrino Observatory  

E-Print Network (OSTI)

To help constrain the algorithms used in reconstructing high-energy muon events incident on the Sudbury Neutrino Observatory (SNO), a muon tracking system was installed. The system consisted of four planes of wire chambers, which were triggered by scintillator panels. The system was integrated with SNO's main data acquisition system and took data for a total of 95 live days. Using cosmic-ray events reconstructed in both the wire chambers and in SNO's water Cherenkov detector, the external muon tracking system was able to constrain the uncertainty on the muon direction to better than 0.6 degrees.

SNO Collaboration

2011-05-06T23:59:59.000Z

412

Modeling La Belle: Reconstruction of a seventeenth-century light frigate  

E-Print Network (OSTI)

. 131 76 Channels, deadeyes, chainplates and shrouds as reconstructed on the model. . 131 77 Post for swivel gun with associated iron hardware as reconstructed on the second model. 132 78 Close-up photograph of La Belle's boarding ladder as recons... Scale drawings of three of the cannons excavated at Fort St. Louis by the Texas Historical Commission. . 138 82 83 View down the deck of La Be1le showing the guns mounted in their carriages. 139 Conserved hook and ring bolt still joined by a...

Grieco, Glenn P.

2012-06-07T23:59:59.000Z

413

Reconstruction of Hessence Dark Energy and the Latest Type Ia Supernovae Gold Dataset  

E-Print Network (OSTI)

Recently, many efforts have been made to build dark energy models whose equation-of-state parameter can cross the so-called phantom divide $w_{de}=-1$. One of them is the so-called hessence dark energy model in which the role of dark energy is played by a non-canonical complex scalar field. In this work, we develop a simple method based on Hubble parameter $H(z)$ to reconstruct the hessence dark energy. As examples, we use two familiar parameterizations for $H(z)$ and fit them to the latest 182 type Ia supernovae Gold dataset. In the reconstruction, measurement errors are fully considered.

Hao Wei; Ningning Tang; Shuang Nan Zhang

2007-02-28T23:59:59.000Z

414

Reconstruction algorithm for limited-angle diffraction tomography for microwave NDE  

SciTech Connect

Microwave tomography is becoming a popular imaging modality in nondestructive evaluation and medicine. A commonly encountered challenge in tomography in general is that in many practical situations a full 360° angular access is not possible and with limited access, the quality of reconstructed image is compromised. This paper presents an approach for reconstruction with limited angular access in diffraction tomography. The algorithm takes advantage of redundancies in image Fourier space data obtained from diffracted field measurements and couples it to an error minimization technique using a constrained total variation (CTV) minimization. Initial results from simulated data have been presented here to validate the approach.

Paladhi, P. Roy; Klaser, J.; Tayebi, A.; Udpa, L.; Udpa, S. [Non-destructive Evaluation Lab, Dept. of Electrical and Computer Engineering, College of Engineering, Michigan State University, Lansing, MI 48824-1226 (United States)

2014-02-18T23:59:59.000Z

415

Reconstructing the supernova bounce time with neutrinos in IceCube  

Science Journals Connector (OSTI)

Generic model predictions for the early neutrino signal of a core-collapse supernova (SN) imply that IceCube can reconstruct the bounce to within about ±3.5??ms at 95% C.L. (assumed SN distance 10 kpc), relevant for coincidence with gravitational-wave detectors. The timing uncertainty scales approximately with the distance squared. The offset between true and reconstructed bounce time of up to several ms depends on the neutrino flavor oscillation scenario. Our work extends the recent study of Pagliaroli et al. [Phys. Rev. Lett. 103, 031102 (2009)] and demonstrates IceCube’s superb timing capabilities for neutrinos from the next nearby SN.

Francis Halzen and Georg G. Raffelt

2009-10-15T23:59:59.000Z

416

$?$ meson reconstruction in pp reactions at 2.2 GeV with HADES  

E-Print Network (OSTI)

The HADES spectrometer installed at GSI Darmstadt is devoted to study the production of di-electron pairs from proton, pion and nucleus induced reactions at 1-2 AGeV. In pp collisions at 2.2 GeV we have focused mainly on exclusive reconstruction of the $\\eta$ meson decays in the hadronic ($\\eta\\to\\pi^{+}\\pi^{-}\\pi^{0}$) and the electromagnetic channels ($\\eta\\to e^{+}e^{-}\\gamma$). We present analysis techniques and discuss first results on $\\eta$ production, with the main focus on comparisons of reconstructed distributions to results obtained by other experiments and theoretical predictions.

S. Spataro; for the HADES Collaboration

2006-10-12T23:59:59.000Z

417

$\\eta$ meson reconstruction in pp reactions at 2.2 GeV with HADES  

E-Print Network (OSTI)

The HADES spectrometer installed at GSI Darmstadt is devoted to study the production of di-electron pairs from proton, pion and nucleus induced reactions at 1-2 AGeV. In pp collisions at 2.2 GeV we have focused mainly on exclusive reconstruction of the $\\eta$ meson decays in the hadronic ($\\eta\\to\\pi^{+}\\pi^{-}\\pi^{0}$) and the electromagnetic channels ($\\eta\\to e^{+}e^{-}\\gamma$). We present analysis techniques and discuss first results on $\\eta$ production, with the main focus on comparisons of reconstructed distributions to results obtained by other experiments and theoretical predictions.

Spataro, S

2007-01-01T23:59:59.000Z

418

The arthropod Offacolus kingi (Chelicerata) from the Silurian of Herefordshire, England: computer based morphological reconstructions and phylogenetic affinities  

Science Journals Connector (OSTI)

...interpretations of external features, based on computer reconstructions of OUM C.29556. (a...ations of prosomal appendages, based on computer reconstructions of OUM C.29556. (a...below the rank of Chelicerata. A NERC grant GR3/12053 funded this research. We...

2002-01-01T23:59:59.000Z

419

Dictionary learning on the manifold of square root densities and application to reconstruction of diffusion propagator fields  

Science Journals Connector (OSTI)

In this paper, we present a novel dictionary learning framework for data lying on the manifold of square root densities and apply it to the reconstruction of diffusion propagator (DP) fields given a multi-shell diffusion MRI data set. Unlike most of ... Keywords: DW-MRI, dictionary learning, diffusion propagator reconstruction, manifold

Jiaqi Sun; Yuchen Xie; Wenxing Ye; Jeffrey Ho; Alireza Entezari; Stephen J. Blackband; Baba C. Vemuri

2013-06-01T23:59:59.000Z

420

December 15, 2000 / Vol. 25, No. 24 / OPTICS LETTERS 1777 Transport-based image reconstruction in turbid media with  

E-Print Network (OSTI)

- proximation to the radiative transport equation is then used to reconstruct an image of a 100-mm absorbing been used,4 and most are based on the diffusion approximation to the Boltzmann transport equationDecember 15, 2000 / Vol. 25, No. 24 / OPTICS LETTERS 1777 Transport-based image reconstruction

Boas, David

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

Abstract--The task of reconstructing an object from its projections via tomographic methods is a time-consuming process  

E-Print Network (OSTI)

Abstract--The task of reconstructing an object from its projections via tomographic methods modules can be executed on the GPU and their output linked internally. The data never leaves the GPU and analytical reconstruction methods. Analytical methods rely on the Fourier Slice Theorem and the Radon

Mueller, Klaus

422

3D Periodic Human Motion Reconstruction from 2D Motion Sequences Zonghua Zhang and Nikolaus F. Troje  

E-Print Network (OSTI)

1 3D Periodic Human Motion Reconstruction from 2D Motion Sequences Zonghua Zhang and Nikolaus F@psyc.queensu.ca Abstract In this report, we present and evaluate a method of reconstructing three-dimensional (3D) periodic set of 3D data, we construct a linear, morphable representation. Using this representation a low

Troje, Nikolaus

423

An overview of fast convergent ordered-subsets reconstruction methods for emission tomography based on the incremental EM  

E-Print Network (OSTI)

. Introduction In emission tomography, the reconstruction of vast quantities of noisy, low-count data in prac [4]. Statistical reconstruction is useful in emission computed tomography due to its ability to ac by using only a subset of the projection data per sub-iteration. The OSEM algorithm is fast, parallelizable

Rangarajan, Anand

424

Entry-Level Positions | National Nuclear Security Administration  

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

Entry-Level Positions | National Nuclear Security Administration Entry-Level Positions | 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 Entry-Level Positions Home > Federal Employment > Our Jobs > Entry-Level Positions Entry-Level Positions Are you looking for a way to share your ideas, follow your passions and develop professionally? NNSA has entry-level positions that will allow you

425

Fiber-Optic Long-Line Position Sensor  

Sandia National Laboratories has developed a side-emitting fiber optic position sensor and method of determining an unknown position of an object by using the sensor.  Non-electrical position sensors like the one developed by Sandia are desirable for use in hazardous environment, e.g., for measuring the liquid level in gasoline or jet fuel tanks.  This sensor is an attractive option because it does not introduce electrical energy, is insensitive to electromagnetic interference,...

2013-03-12T23:59:59.000Z

426

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

427

Technical Position, NSEP-TP-2007-1  

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

This technical position clarifies requirement in DOE 0 420.1B to Use National Consensus Industry Standards and the Model Building Codes

428

Solar Radio Burst Effects on Global Positioning System Receivers .  

E-Print Network (OSTI)

??This thesis presents a series of studies investigating solar radio burst effects on Global Positioning System (GPS) receivers along with supporting instrumentation and analysis techniques.… (more)

Cerruti, Alessandro Paolo

2007-01-01T23:59:59.000Z

429

10 CFR Part 830 Nuclear Safety Technical Positions  

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

Technical Positions to directives issued by Nuclear and Facility Safety Policy provide clarification for specific applications of the requirements in DOE orders, rules, and other directives.

430

POLICY GUIDANCE MEMORANDUM #23 Permanent and Nonpermanent Positions...  

Energy Savers (EERE)

MEMORANDUM 02 Using Schedule A Hiring Authority for ARRA Positions (Expired) Handbook on Overseas Assignments Operational Plan and Desktop Reference for the Veterans...

431

Position: IT pre-sales engineer. Job Description  

E-Print Network (OSTI)

Position: IT pre-sales engineer. Job Description: Develop sales proposals Provide technical sales. Ability to work under pressure in a dynamic environment. Excellent communication, interpersonal

432

Three-dimensional heart dose reconstruction to estimate normal tissue complication probability after breast irradiation using portal dosimetry  

SciTech Connect

Irradiation of the heart is one of the major concerns during radiotherapy of breast cancer. Three-dimensional (3D) treatment planning would therefore be useful but cannot always be performed for left-sided breast treatments, because CT data may not be available. However, even if 3D dose calculations are available and an estimate of the normal tissue damage can be made, uncertainties in patient positioning may significantly influence the heart dose during treatment. Therefore, 3D reconstruction of the actual heart dose during breast cancer treatment using electronic imaging portal device (EPID) dosimetry has been investigated. A previously described method to reconstruct the dose in the patient from treatment portal images at the radiological midsurface was used in combination with a simple geometrical model of the irradiated heart volume to enable calculation of dose-volume histograms (DVHs), to independently verify this aspect of the treatment without using 3D data from a planning CT scan. To investigate the accuracy of our method, the DVHs obtained with full 3D treatment planning system (TPS) calculations and those obtained after resampling the TPS dose in the radiological midsurface were compared for fifteen breast cancer patients for whom CT data were available. In addition, EPID dosimetry as well as 3D dose calculations using our TPS, film dosimetry, and ionization chamber measurements were performed in an anthropomorphic phantom. It was found that the dose reconstructed using EPID dosimetry and the dose calculated with the TPS agreed within 1.5% in the lung/heart region. The dose-volume histograms obtained with EPID dosimetry were used to estimate the normal tissue complication probability (NTCP) for late excess cardiac mortality. Although the accuracy of these NTCP calculations might be limited due to the uncertainty in the NTCP model, in combination with our portal dosimetry approach it allows incorporation of the actual heart dose. For the anthropomorphic phantom, and for fifteen patients for whom CT data were available to test our method, the average difference between the NTCP values obtained with our method and those resulting from the dose distributions calculated with the TPS was 0.1% {+-}0.3% (1 SD). Most NTCP values were 1%-2% lower than those obtained using the method described by Hurkmans et al. [Radiother. Oncol. 62, 163-171 (2002)], using the maximum heart distance determined from a simulator image as a single pre-treatment parameter. A similar difference between the two methods was found for twelve patients using in vivo EPID dosimetry; the average NTCP value obtained with EPID dosimetry was 0.9%, whereas an average NTCP value of 2.2% was derived using the method of Hurkmans et al. The results obtained in this study show that EPID dosimetry is well suited for in vivo verification of the heart dose during breast cancer treatment, and can be used to estimate the NTCP for late excess cardiac mortality. To the best of our knowledge, this is the first study using portal dosimetry to calculate a DVH and NTCP of an organ at risk.

Louwe, R. J. W.; Wendling, M.; Herk, M. B. van; Mijnheer, B. J. [Department of Radiation Oncology, Netherlands Cancer Institute/Antoni van Leeuwenhoek Hospital, Amsterdam (Netherlands)

2007-04-15T23:59:59.000Z

433

Human Motion Capture Using 3D Reconstruction Based on Multiple Depth Data  

Science Journals Connector (OSTI)

Human motion is a critical aspect of interacting, even between people. It has become an interesting field to exploit in human-robot interaction. Even with today's computing power, it remains a difficult task to successfully follow the human's motion ... Keywords: human posture reconstruction, depth sensing, sensor fusion, machine learning, voxel

Wassim Filali; Jean-Thomas Masse; Frederic Lerasle; Jean-Louis Boizard; Michel Devy

2013-10-01T23:59:59.000Z

434

A Marxian Reconstruction of the Theory of Currency and the Functions of Money Constituting it*  

E-Print Network (OSTI)

1 A Marxian Reconstruction of the Theory of Currency and the Functions of Money Constituting it of the Theory of Currency and the Functions of Money Constituting it I. Introduction Marx (1859, 1867) was the first economist to conceptualise money as a necessary unfolding of the commodity-form of the product

435

RECONSTRUCTION OF THE EARLY UNIVERSE, ZELDOVICH APPROXIMATION AND MONGE-AMP`ERE GRAVITATION  

E-Print Network (OSTI)

(t, x) satisfies (0.2) = 1 + t. The Newton law for each gravitating bodies is just (0.3) t((t)2 tRECONSTRUCTION OF THE EARLY UNIVERSE, ZELDOVICH APPROXIMATION AND MONGE-AMP`ERE GRAVITATION YANN Monge-Amp`ere equation for the linear Poisson equation to model gravitation, we introduce a modified

436

Regularized reconstruction of the differential emission measure from solar flare hard X-ray spectra  

E-Print Network (OSTI)

Regularized reconstruction of the differential emission measure from solar flare hard X-ray spectra for solar flare hard X-rays, it is currently unclear whether the electron distribution responsible between (T) and J( ). However, in the last years, two issues have made this inversion problem more

Piana, Michele

437

A Reconstructed Discontinuous Galerkin Method for the Compressible Navier-Stokes Equations on Arbitrary Grids  

SciTech Connect

A reconstruction-based discontinuous Galerkin (RDG) method is presented for the solution of the compressible Navier–Stokes equations on arbitrary grids. The RDG method, originally developed for the compressible Euler equations, is extended to discretize viscous and heat fluxes in the Navier–Stokes equations using a so-called inter-cell reconstruction, where a smooth solution is locally reconstructed using a least-squares method from the underlying discontinuous DG solution. Similar to the recovery-based DG (rDG) methods, this reconstructed DG method eliminates the introduction of ad hoc penalty or coupling terms commonly found in traditional DG methods. Unlike rDG methods, this RDG method does not need to judiciously choose a proper form of a recovered polynomial, thus is simple, flexible, and robust, and can be used on arbitrary grids. The developed RDG method is used to compute a variety of flow problems on arbitrary meshes to demonstrate its accuracy, efficiency, robustness, and versatility. The numerical results indicate that this RDG method is able to deliver the same accuracy as the well-known Bassi–Rebay II scheme, at a half of its computing costs for the discretization of the viscous fluxes in the Navier–Stokes equations, clearly demonstrating its superior performance over the existing DG methods for solving the compressible Navier–Stokes equations.

Hong Luo; Luqing Luo; Robert Nourgaliev; Vincent A. Mousseau

2010-09-01T23:59:59.000Z

438

A Reconstructed Discontinuous Galerkin Method for the Compressible Flows on Unstructured Tetrahedral Grids  

SciTech Connect

A reconstruction-based discontinuous Galerkin (RDG) method is presented for the solution of the compressible Navier-Stokes equations on unstructured tetrahedral grids. The RDG method, originally developed for the compressible Euler equations, is extended to discretize viscous and heat fluxes in the Navier-Stokes equations using a so-called inter-cell reconstruction, where a smooth solution is locally reconstructed using a least-squares method from the underlying discontinuous DG solution. Similar to the recovery-based DG (rDG) methods, this reconstructed DG method eliminates the introduction of ad hoc penalty or coupling terms commonly found in traditional DG methods. Unlike rDG methods, this RDG method does not need to judiciously choose a proper form of a recovered polynomial, thus is simple, flexible, and robust, and can be used on unstructured grids. The preliminary results indicate that this RDG method is stable on unstructured tetrahedral grids, and provides a viable and attractive alternative for the discretization of the viscous and heat fluxes in the Navier-Stokes equations.

Hong Luo; Yidong Xia; Robert Nourgaliev; Chunpei Cai

2011-06-01T23:59:59.000Z

439

A COGNITIVE-SYSTEMIC RECONSTRUCTION OF MASLOW'S THEORY OF SELF-ACTUALIZATION  

E-Print Network (OSTI)

A COGNITIVE-SYSTEMIC RECONSTRUCTION OF MASLOW'S THEORY OF SELF-ACTUALIZATION by Francis Heylighen1-order, cognitive-sys- temic framework. A hierarchy of basic needs is derived from the ur- gency of perturbations: material, cognitive and subjective. Material and/or cognitive incompetence during child- hood create

Toint, Philippe

440

web page: http://w3.pppl.gov/~ zakharov Calibrating JET for equilibrium reconstruction1  

E-Print Network (OSTI)

web page: http://w3.pppl.gov/~ zakharov Calibrating JET for equilibrium reconstruction1 (iron core by US DoE contract No. DE­AC020­76­CHO­3073. PRINCETON PLASMA PHYSICS LABORATORY PPPL 1 #12;Abstract signals due to the presence of the iron core and due to eddy currents in passive conductors

Zakharov, Leonid E.

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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

3D building reconstruction and thermal mapping in fire brigade operations  

Science Journals Connector (OSTI)

Fire fighting remains a dangerous profession despite many recent technological and organizational measures. Sensors and technical systems can augment the performance of fire fighters to increase safety and efficiency during operation. An important aspect ... Keywords: augmented reality, fire fighter safety, real-time dense reconstruction, thermal camera

Christian Schönauer; Emanuel Vonach; Georg Gerstweiler; Hannes Kaufmann

2013-03-01T23:59:59.000Z

442

Nonintrusive 3D reconstruction of human bone models to simulate their bio-mechanical response  

Science Journals Connector (OSTI)

3D finite element models representing functional parts of the human skeletal system, have been repeatedly introduced over the last years, to simulate biomechanical response of anatomical characteristics or investigate surgical treatment. The reconstruction ... Keywords: 3D imaging, Bio-mechanical response, Computed tomography, FEM modeling

Tsouknidas Alexander; Lontos Antonis; Savvakis Savvas; Michailidis Nikolaos

2012-06-01T23:59:59.000Z

443

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

444

Dynamic Surface Reconstruction from 4D-MR Images Matthias Fenchel1  

E-Print Network (OSTI)

Dynamic Surface Reconstruction from 4D-MR Images Matthias Fenchel1 , Stefan Gumhold2 , Hans approach is applied to 4D-MR images of a human heart in motion. 1 Introduction Image segmentation-Peter Seidel3 1 Siemens AG Medical Solutions, Magnetic Resonance, Karl-Schall-Str. 4, 91052 Erlangen 2 TU

Gumhold, Stefan

445

Model-based Compressed Sensing reconstruction for MR parameter mapping Mariya Doneva1  

E-Print Network (OSTI)

Model-based Compressed Sensing reconstruction for MR parameter mapping Mariya Doneva1 , Christian Stehning2 , Peter Börnert2 , Holger Eggers2 and Alfred Mertins1 1 University of Luebeck, Luebeck, Germany, 2 Philips Research Europe, Hamburg, Germany Introduction: Compressed Sensing [1-4] suggests

Lübeck, Universität zu

446

Reconstruction of a wind turbine's endured load spectrum using a short-time load measurement  

E-Print Network (OSTI)

Reconstruction of a wind turbine's endured load spectrum using a short-time load measurement Abstract Wind turbines (WT) are normally designed for a service life (SL) of 20 years. In Germany, over safety. 1 Introduction A wind turbine (WT) is normally designed, tested and certified for a design life

Berlin,Technische Universität

447

QUATERNARY RESEARCH 28,238-244 (1987) A Reexamination of Late-Pleistocene Boreal Forest Reconstructions  

E-Print Network (OSTI)

Reconstructions for the Southern High Plains VANCE T. HOLLIDAY Department of Geography, Science Hall, University High Plains resulted in development of a late Quatemary chronology of "pollen-analytical episodes was conducted into the late Quaternary, principally late Pleistocene, paleoecology of the Southern High Plains

Holliday, Vance T.

448

A Reconstructed Discontinuous Galerkin Method for the Compressible Navier-Stokes Equations on Arbitrary Grids  

SciTech Connect

A reconstruction-based discontinuous Galerkin (RDG) method is presented for the solution of the compressible Navier-Stokes equations on arbitrary grids. The RDG method, originally developed for the compressible Euler equations, is extended to discretize viscous and heat fluxes in the Navier-Stokes equations using a so-called inter-cell reconstruction, where a smooth solution is locally reconstructed using a least-squares method from the underlying discontinuous DG solution. Similar to the recovery-based DG (rDG) methods, this reconstructed DG method eliminates the introduction of ad hoc penalty or coupling terms commonly found in traditional DG methods. Unlike rDG methods, this RDG method does not need to judiciously choose a proper form of a recovered polynomial, thus is simple, flexible, and robust, and can be used on arbitrary grids. The developed RDG method is used to compute a variety of flow problems on arbitrary meshes to demonstrate its accuracy, efficiency, robustness, and versatility. The numerical results indicate that this RDG method is able to deliver the same accuracy as the well-known Bassi-Rebay II scheme, at a half of its computing costs for the discretization of the viscous fluxes in the Navier-Stokes equations, clearly demonstrating its superior performance over the existing DG methods for solving the compressible Navier-Stokes equations.

Hong Luo; Luqing Luo; Robert Nourgaliev; Vincent A. Mousseau

2010-01-01T23:59:59.000Z

449

High-resolution Neogene reconstructions of Eurasia-North America Plate motion  

Science Journals Connector (OSTI)

......calls for reconstructions of the basin's natural history that are...by MD08 are from the Arctic basin seafloor spreading centres...information from the Charlie Gibbs, Bight and Molloy fracture zones and...Reykjanes Ridge and Arctic Basin spreading centres (Fig......

S. Merkouriev; C. DeMets

2014-01-01T23:59:59.000Z

450

Solar modulation parameter for cosmic rays since 1936 reconstructed from groundbased neutron  

E-Print Network (OSTI)

Solar modulation parameter for cosmic rays since 1936 reconstructed from groundbased neutron the world network of sea level neutron monitors and covers the period since April 1964. The part between February 1951 and March 1964 is based on data from one to two mountain neutron monitors of IGY type

Usoskin, Ilya G.

451

3. Wave Propagation Abstract --A new technique is proposed to reconstruct faulty  

E-Print Network (OSTI)

of defects in the branches of the network. The direct problem (propagation along the cables) is modelled of this reconstruction method. I. INTRODUCTION Aging wiring in cars, aircraft, trains, and other transportation mean electrical, chemical and mechanical stresses. This leads to the occurrence of defects in the wiring. Wiring

452

Persistent Ocean Monitoring with Underwater Gliders: Towards Accurate Reconstruction of Dynamic Ocean Processes  

E-Print Network (OSTI)

to ocean currents. The speed control algorithm then optimizes the speed along the planned path so waters of large magnitude ocean currents, and is length constrained. Secondly, we develop a velocityPersistent Ocean Monitoring with Underwater Gliders: Towards Accurate Reconstruction of Dynamic

Smith, Ryan N.

453

SIGNAL RECONSTRUCTION FROM SPIKING NEURON MODELS Dazhi Wei and John G. Harris  

E-Print Network (OSTI)

SIGNAL RECONSTRUCTION FROM SPIKING NEURON MODELS Dazhi Wei and John G. Harris Computational Neuro of delayed impulse functions [3, 4]. x(t) = h(t) j wj(t - sj) = j wjh(t - sj) (2) where wj are scalar the signal recovery problem is simplified as how to calculate the appropriate weights. If sj = j

Harris, John G.

454

Extended Reconstructed Sea Surface Temperature version 4 (ERSST.v4), Part I. Upgrades and Intercomparisons  

Science Journals Connector (OSTI)

The monthly Extended Reconstructed Sea Surface Temperature (ERSST) dataset, available on global 2°×2° grids, has been revised herein to version 4 (v4) from v3b. Major revisions include: updated and substantially more complete input data from the ...

Boyin Huang; Viva F. Banzon; Eric Freeman; Jay Lawrimore; Wei Liu; Thomas C. Peterson; Thomas M. Smith; Peter W. Thorne; Scott D. Woodruff; Huai-Min Zhang

455

Chemico-Biological Interactions 166 (2007) 264276 Chemical process-based reconstruction of exposures for an  

E-Print Network (OSTI)

, the chloroprene (CD) and vinyl chloride monomer (VCM) exposures were modeled for plant specific job title classes to chloroprene (CD) and vinyl chloride monomer (VCM), the historical exposure levels were reconstructed of exposures for an epidemiological study Part II. Estimated exposures to chloroprene and vinyl chloride Nurtan

Illinois at Chicago, University of

456

Architectural reconstruction of 3D building objects through semantic knowledge management  

E-Print Network (OSTI)

of a building. To resolve this problem a new standard was developed over ten years by the International Alliance for Interoperability (IAI). This standard called IFC, considers the building elements as objects that are definedArchitectural reconstruction of 3D building objects through semantic knowledge management Yucong

Paris-Sud XI, Université de

457

Reconstruction and Analysis of Gene Family Evolution in Mammals University of Connecticut, 2010  

E-Print Network (OSTI)

Reconstruction and Analysis of Gene Family Evolution in Mammals Jin Jun University of Connecticut of Connecticut 2010 #12;Copyright by Jin Jun 2010 #12;APPROVAL PAGE Doctor of Philosophy Dissertation Gogarten Associate Advisor: Yufeng Wu University of Connecticut 2010 ii #12;Contents List of Figures vi

Mandoiu, Ion

458

Global Contour Lines Reconstruction in Topographic Maps Joachim Pouderoux Salvatore Spinello  

E-Print Network (OSTI)

, Geographical Information Systems (GIS)-based applications are more and more used. While modern topographic maps GIS, large libraries of paper maps (of recent or older ages) are still available and provide a lowGlobal Contour Lines Reconstruction in Topographic Maps Joachim Pouderoux Salvatore Spinello Iparla

Paris-Sud XI, Université de

459

A reconstruction of the invasion of land by Jamaican crabs (Grapsidae: Sesarminae)  

E-Print Network (OSTI)

A reconstruction of the invasion of land by Jamaican crabs (Grapsidae: Sesarminae) Rudolf Diesel1, the early life-cycle stages were facing new ecological conditions and selective agents. We test hypotheses, is inadequate to explain this increase. Our results support general life-history hypotheses (`safe harbour

Schubart, Christoph

460

ADAPTIVE TRANSMISSION FOR LOSSLESS IMAGE RECONSTRUCTION Elisabeth Lahalle, Gilles Fleury, Rawad Zgheib  

E-Print Network (OSTI)

on the principle of non-uniform transmission, is pro- posed. It uses a recently proposed algorithm for adaptive sta on the Adaptive Pulse Code Modulation (ADPCM) principle and non-uniform transmission of signals have already beenADAPTIVE TRANSMISSION FOR LOSSLESS IMAGE RECONSTRUCTION Elisabeth Lahalle, Gilles Fleury, Rawad

Boyer, Edmond

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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.
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to obtain the most current and comprehensive results.


461

Animatable Human Body Model Reconstruction from 3D Scan Data using Templates  

E-Print Network (OSTI)

, we propose a recon- struction pipeline which solves these three prob- lems by fitting a template to be established, which is a time-consuming process. Lee et al. [1] repair the scanned surface of human faces 1: High-level overview of the reconstruction pipeline fitting strategies (where holes are filled

Veltkamp, Remco

462

Enforcing nonnegativity in image reconstruction algorithms James Nagy a and Zdenek Strakos b  

E-Print Network (OSTI)

represents the recorded data (e.g., a blurred image in restoration applications, or projection data reconstructions can be computed cheaply, not enforcing a nonnegativity constraint at each iteration limits a Department of Mathematics and Computer Science Emory University, Atlanta, GA, USA b Institute of Computer

Nagy, James

463

GPU IMPLEMENTATION OF A 3D BAYESIAN CT ALGORITHM AND ITS APPLICATION ON REAL FOAM RECONSTRUCTION  

E-Print Network (OSTI)

Tomography (CT) [1, 3]. The limits of these meth- ods appear when the number of projections is small, and as well as any iterative algebraic meth- ods is the computation time and especially for projection solve is to reconstruct the object f from the projection data g collected by a cone beam 3D CT. The link

Paris-Sud XI, Université de

464

Bayesian Image Reconstruction for Transmission Tomography Using Mixture Model Priors and Deterministic Annealing  

E-Print Network (OSTI)

degradations in emission computed tomography (ECT) for both PET and SPECT. To improve quantitative accuracy transmission projection data. However, the transmission projection data is itself usually very noisy due to the necessities of a short-time acquisition and limited count rate . The low-count data makes the reconstruction

465

Searching Effective Parameters for Low-Dose CT Reconstruction by Ant Colony Optimization  

E-Print Network (OSTI)

, Eric Papenhausen and Klaus Mueller Abstract-- Low-dose Computed Tomography (CT) has been gaining. To cope with the limited data collected at 30% of standard radiation, low-dose CT reconstruction algorithms generally require several iterations of forward projection, back-projection and regularization

Mueller, Klaus

466

X-Ray CT Image Reconstruction via Wavelet Frame Based Regularization and Radon Domain  

E-Print Network (OSTI)

to reconstruct high quality CT images from limited and noisy projection data. One of the common CT systems Bin Dong Jia Li Zuowei Shen December 22, 2011 Abstract X-ray computed tomography (CT) has been,8]. Numerical simulations and comparisons will be presented at the end. Keywords: Computed tomography, wavelet

Zakharov, Vladimir

467

A Geometric Projection-Space Reconstruction Algorithm* Jerry L. Prince' and Alan S. Willsky  

E-Print Network (OSTI)

are obtained from simulated limited- and sparse-angle data using the described algorithm, and compareA Geometric Projection-Space Reconstruction Algorithm* Jerry L. Prince' and Alan S. Willsky Laboratory for Information and Decision Systems Department of Electrical Engineering and Computer Science

Willsky, Alan S.

468

654 IEEE TRANSACTIONS ON NUCLEAR SCIENCE, VOL. 52, NO. 3, JUNE 2005 Accelerating Popular Tomographic Reconstruction  

E-Print Network (OSTI)

computed tomography (CT) rely mostly on special application specified integrated circuits (ASICs) to ob. I. INTRODUCTION VARIOUS methods for three-dimensional (3D) computed tomography (CT) reconstruction-consuming process due to the vast complexity of the data. For this reason, manufacturers of equipment for medical

Mueller, Klaus

469

Reconstruction of f-essence and fermionic Chaplygin gas models of dark energy  

E-Print Network (OSTI)

Recently, it was proposed a new fermionic model of dark energy, the so-called f-essence. In this work, we explicitly reconstruct the different f-essence models. In particular, these models include the fermionic Chaplygin gas and the fermionic generalized Chaplygin gas models of dark energy. We also derive the equation of state parameter of the selected f-essence models.

P. Tsyba; K. Yerzhanov; K. Esmakhanova; I. Kulnazarov; G. Nugmanova; R. Myrzakulov

2011-03-30T23:59:59.000Z

470

Monitoring the Excavation Damaged Zone in Opalinus clay by three dimensional reconstruction of the electrical resistivity  

E-Print Network (OSTI)

of the electrical resistivity in the Mont Terri gallery G-04 Authors: Lesparre N., Adler A., Nicollin F., Gibert D ; Thovert et al., 2011). Here the three dimensional reconstruction of the electrical resistivity aims on the physico-chemical properties of the rock. The study of electrical properties furnishes information

Adler, Andy

471

Three-dimensional computer reconstruction of the South Room Block of the NAN Ruin archaeological site  

E-Print Network (OSTI)

The goal of this study is to demonstrate how the use of three-dimensional computer reconstruction of architecture from an archaelogical site can be used to gain a better understanding of the culture represented. To demonstrate this process, a three...

Kelley, Kirk Lee

2012-06-07T23:59:59.000Z

472

Phenomenological solar signature in 400 years of reconstructed Northern Hemisphere temperature record  

E-Print Network (OSTI)

Phenomenological solar signature in 400 years of reconstructed Northern Hemisphere temperature sensitivity model to solar changes (Scafetta and West, 2005, 2006). The phenomenological approach we propose­1100 AD) to the 17th century minimum. Citation: Scafetta, N., and B. J. West (2006), Phenomenological

Scafetta, Nicola

473

Lateral Dynamics Reconstruction for Sharp'71 Motorcycle Model with P2I Observer  

E-Print Network (OSTI)

Lateral Dynamics Reconstruction for Sharp'71 Motorcycle Model with P2I Observer Chabane Chenane (motorcycle, scooter, etc.). For that purpose, the well-known motorcycle model developed by Sharp in 1971 is used. This model characterizes the lateral dynamics of a motorcycle [16]. The roll angle

Paris-Sud XI, Université de

474

Lean and Steering Motorcycle Dynamics Reconstruction : An Unknown Input HOSMO Approach  

E-Print Network (OSTI)

Lean and Steering Motorcycle Dynamics Reconstruction : An Unknown Input HOSMO Approach L. Nehaoua1. For this purpose, we consider a unknown input high order sliding mode observer (UIHOSMO). First, a motorcycle- flected by an important increase of motorcycle's fatalities. Recent statistics confirm this fact

Paris-Sud XI, Université de

475

Surface ECG reconstruction from intracardiac EGM: a PCA-vectorcardiogarm method  

E-Print Network (OSTI)

Surface ECG reconstruction from intracardiac EGM: a PCA-vectorcardiogarm method A. Kachenoura(1 expenditure. For this purpose, a challenge deals with the patient ECG check-up from the intracardiac Electro the surface ECG from a set of EGM signals, based on a 3D representation of the cardiac electrical activity

Paris-Sud XI, Université de

476

Forensic Anthropology Population Data Facial reconstruction: Soft tissue thickness values for South African black females  

E-Print Network (OSTI)

Forensic Anthropology Population Data Facial reconstruction: Soft tissue thickness values for South African black females D. Cavanagh, M. Steyn * Forensic Anthropology Research Centre, Department of Anatomy, University of Pretoria, P.O. Box 2034, Pretoria 0001, South Africa 1. Introduction Forensic facial

Frey, Pascal

477

Long-Term Instrumental and Reconstructed Temperature Records Contradict Anthropogenic Global Warming  

E-Print Network (OSTI)

Monthly instrumental temperature records from 5 stations in the northern hemisphere are analyzed, each of which is local and over 200 years in length, as well as two reconstructed long-range yearly records - from a stalagmite and from tree rings that are about 2000 years long. In the instrumental records, the steepest 100-year temperature fall happened in the 19th century and the steepest rise in the 20th century, both events being of about the same magnitude. Evaluation by the detrended fluctuation analysis (DFA) yields Hurst exponents that are in good agreement with the literature. DFA, Monte Carlo simulations, and synthetic records reveal that both 100-year events were caused by external trends. In contrast to this, the reconstructed records show stronger 100-year rises and falls as quite common during the last 2000 years. These results contradict the hypothesis of an unusual (anthropogenic) global warming during the 20th century. As a hypothesis, the sun's magnetic field, which is correlated with sunspot numbers, is put forward as an explanation. The long-term low-frequency fluctuations in sunspot numbers are not detectable by the DFA in the monthly instrumental records, resulting in the common low Hurst exponents. The same does not hold true for the 2000-year-long reconstructed records, which explains both their higher Hurst exponents and the higher probabilities of strong 100-year temperature fluctuations. A long-term synthetic record that embodies the reconstructed sunspot number fluctuations includes the different Hurst exponents of both the instrumental and the reconstructed records and, therefore, corroborates the conjecture.

Horst-Joachim Lüdecke

2011-10-09T23:59:59.000Z

478

Image reconstruction and the effect on dose calculation for hip prostheses  

SciTech Connect

High atomic number inserts, such as hip prostheses and dental fillings, cause streak artifacts on computed tomography (CT) images when filtered back-projection (FBP) methods are used. These streak artifacts severely degrade our ability to differentiate the tumor volume. Also, incorrect Hounsfield numbers yield incorrect electron density information that may lead to erroneous dose calculations, and, as a result, compromise clinical outcomes. The aim of this research was to evaluate the dosimetric consequences of artifacts during radiotherapy planning of a prostate patient containing a hip prosthesis. The CT numbers corresponding to an iron prosthesis were inserted into the right femoral head of an existing CT image set. This artifact-free image was used as the standard image set. CT projections through the image set formed the sinogram, from which filtered back projection and iterative deblurring methods were used to create reconstructed image sets. These reconstructed image sets contained artifacts. Prostate treatment plans were then calculated using a Monte Carlo system for the standard and reconstructed CT image sets. Close to the prosthesis, the CT numbers between the reconstructed and standard image sets differed substantially. However, because the CT number differences covered only a small area, the dose distributions on the reconstructed and standard image sets were not significantly different. The dose-volume histograms for the prostate, rectum, and bladder were virtually identical. Our results indicate that even though CT image artifacts restrict our ability to differentiate tumors and critical structures, the dose distributions for a prostate plan containing a hip prosthesis, calculated on both artifact-free image sets and image sets containing artifacts, are not significantly different.

Keall, Paul J.; Chock, Leah B.; Jeraj, Robert; Siebers, Jeffrey V.; Mohan, Radhe

2003-06-30T23:59:59.000Z

479

STAFF POSITION DESCRIPTION SAN JOSE STA TE HUMAN RESOURCES  

E-Print Network (OSTI)

STAFF POSITION DESCRIPTION SAN JOSE STA TE HUMAN RESOURCES UNIVERSITY Workforce Planning l: 408-924-2250 I408-924-1784 (fax) Job Description Staff Date: Workforce Planning, Human Resources (Name [Workforce Planning reviews the CSU classification standards with essential duties of the positions] F

Su, Xiao

480

Representation of completely positive maps between partial *-algebras  

SciTech Connect

A characterization of the invariant completely positive conjugate-bilinear maps from an arbitrary partial *-algebra to a semiassociative, locally convex partial *-algebra is given. The result generalizes Stinespring`s characterization of completely positive maps on C*-algebras. as well as its recent extensions by a number of authors.

Ekhaguere, G.O.S. [International Centre for Theoretical Physics, Trieste (Italy)

1996-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "reconstructing paleo-smt positions" 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.


481

Methods for targetted mutagenesis in gram-positive bacteria  

SciTech Connect

The present invention provides a method of targeted mutagenesis in Gram-positive bacteria. In particular, the present invention provides a method that effectively integrates a suicide integrative vector into a target gene in the chromosome of a Gram-positive bacterium, resulting in inactivation of the target gene.

Yang, Yunfeng

2014-05-27T23:59:59.000Z

482

An action with positive kinetic energy term for general relativity  

E-Print Network (OSTI)

At first, we state some results in arXiv: 0707.2639, and then, using a positive kinetic energy coordinate condition given by arXiv: 0707.2639, we present an action with positive kinetic energy term for general relativity. Based on this action, the corresponding theory of canonical quantization is discussed.

T. Mei

2007-11-02T23:59:59.000Z

483

Choosing a Thesis Advisor and a Postdoctoral Position Giving Talks  

E-Print Network (OSTI)

athematics A Vignette Choosing a Thesis Advisor and a Postdoctoral Position Giving Talks Joining. is not enough! #12;athematics A Vignette Choosing a Thesis Advisor and a Postdoctoral Position Giving Talks Joining Professional Organizations Outline 1 A Vignette 2 Choosing a Thesis Advisor and a Postdoctoral

Miller, Peter D.

484

Map-Merging-Free Connectivity Positioning for Distributed Robot Teams  

E-Print Network (OSTI)

Map-Merging-Free Connectivity Positioning for Distributed Robot Teams Somchaya LIEMHETCHARAT a,1 and obstacles. The goal is to achieve connectivity among the towers through a set of robots positioned in a way to act as gateways among the towers. The autonomous mobile robots are initially randomly deployed without

Veloso, Manuela M.

485

Cognitive Neuroscience/Cognitive Psychology Faculty Position Johns Hopkins University  

E-Print Network (OSTI)

Cognitive Neuroscience/Cognitive Psychology Faculty Position Johns Hopkins University-track or tenured faculty position in Human Cognitive Neuroscience/Cognitive Psychology. Accomplished mid, memory, and/or cognition (broadly construed) using one or more methods of cognitive neuroscience and

Connor, Ed

486

A CHARACTERIZATION OF HOMOGENEOUS SPACES WITH POSITIVE HYPERBOLIC RANK  

E-Print Network (OSTI)

A CHARACTERIZATION OF HOMOGENEOUS SPACES WITH POSITIVE HYPERBOLIC RANK CHRISTOPHER CONNELL Abstract to be a rank one symmetric space. In particular, we show rigidity if such a space has positive hyperbolic rank greater than equal to that of its "abelian direction." The notion of hyperbolic-rank extends the notion

Connell, Christopher

487

Thrust allocation with power management functionality on dynamically positioned vessels  

E-Print Network (OSTI)

world-wide. The main benefits of diesel-electric propulsion and thrusters are reduced power consumptionThrust allocation with power management functionality on dynamically positioned vessels Aleksander to assist the power management system on dynamically positioned ships is proposed in this paper. Its main

Johansen, Tor Arne

488

Fuzzy Relative Positioning for On-Line Handwritten Stroke Analysis  

E-Print Network (OSTI)

Fuzzy Relative Positioning for On-Line Handwritten Stroke Analysis Franc¸ois Bouteruche, S and robust mod- elling of the relative positioning of on-line handwritten strokes. We exploit the fuzzy to deal with the particular nature of on-line strokes, which are consti- tuted of non-connected points

Paris-Sud XI, Université de

489

Faculty Position in Energy Geosciences Department of Geosciences  

E-Print Network (OSTI)

related to energy resources. Energy geosciences includes the origin of both conventionalFaculty Position in Energy Geosciences Department of Geosciences Virginia Tech The Department of Geosciences invites applications for a faculty position in Energy Geosciences. The ideal candidate will apply

Zhou, Ying

490

Position Paper: Model-Based Testing Mark Utting  

E-Print Network (OSTI)

Position Paper: Model-Based Testing Mark Utting The University of Waikato, New Zealand Email: marku@cs.waikato.ac.nz 1 Introduction This position paper gives an overview of model-based testing and discusses how is the automation of black-box test design. It usually in- volves four stages: 1 #12;1. building an abstract model

Utting, Mark

491

Non-Adaptive Complex Group Testing with Multiple Positive Sets  

E-Print Network (OSTI)

Non-Adaptive Complex Group Testing with Multiple Positive Sets Francis Y.L. Chin, Henry C.M. Leung Given n items with at most d of them having a particular property (referred as positive items), a test-adaptive group testing problem is to design how to group the items to minimize the number of tests required

Chin, Francis Y.L.

492

Positioning Sea Grant An Integrated National Communications Plan  

E-Print Network (OSTI)

Positioning Sea Grant An Integrated National Communications Plan 2003-06 Prepared and Submitted March 10, 2003 by Stephen Wittman, Wisconsin Sea Grant #12;2 #12;3 Positioning Sea Grant: An Integrated communications "inside the beltway" to attain greater federal support for the National Sea Grant College Program

493

Kinematic and Dynamic Analysis of a Surgical Robot Positioning Arm  

E-Print Network (OSTI)

Kinematic and Dynamic Analysis of a Surgical Robot Positioning Arm Diana C.W. Friedman A thesis Analysis of a Surgical Robot Positioning Arm Diana C.W. Friedman Chair of the Supervisory Committee, a small form-factor surgical robot. To increase the RAVEN's workspace and decrease setup time, the C-Arm

494

Postdoctoral Position in Theoretical Nuclear and Elementary Particle Physics  

E-Print Network (OSTI)

Postdoctoral Position in Theoretical Nuclear and Elementary Particle Physics Indiana University The Nuclear Theory group at the Physics Department of Indiana University invites ap- plications for a postdoctoral position in the fields of Nuclear Theory and Elementary Particle Physics, broadly defined

Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

495

A Map of Recent Positive Selection in the Human Genome  

E-Print Network (OSTI)

information about the adaptation of modern humans to local conditions. We report here on a genome-wide scanA Map of Recent Positive Selection in the Human Genome Benjamin F. Voight[ , Sridhar Kudaravalli BF, Kudaravalli S, Wen X, Pritchard JK (2006) A map of recent positive selection in the human genome

Nachman, Michael

496

Visual Positioning of Previously Defined ROIs on Microscopic Slides  

E-Print Network (OSTI)

1 Visual Positioning of Previously Defined ROIs on Microscopic Slides Grigory Begelman, Michael slide area. Various microscopy related medical applications, such as telepathology and computer aided of interest. In this paper we present a method for image-based auto positioning on a microscope slide

Rivlin, Ehud

497

IN PRESS, ADAPTIVE BEHAVIOR Positive Assortment for Peer Review  

E-Print Network (OSTI)

1 IN PRESS, ADAPTIVE BEHAVIOR Positive Assortment for Peer Review C. Athena Aktipis* Dept of positive assortment (the pairing of individuals with similar characteristics) to the peer review process who has submitted a journal article for peer-review knows how frustrating it is to wait for long

Thompson-Schill, Sharon

498

POSITIVITY CASES, ESTIMATES AND ASYMPTOTIC EXPANSIONS FOR CONDENSER CAPACITIES.  

E-Print Network (OSTI)

POSITIVITY CASES, ESTIMATES AND ASYMPTOTIC EXPANSIONS FOR CONDENSER CAPACITIES. ALAIN BONNAF´E Abstract. We study positivity cases, estimates and asymptotic expansions of condenser p the internal part of the condenser has a non-empty interior. The study of the point and its approximation

Boyer, Edmond

499

Photonic generation of UWB pulses with pulse position modulation  

E-Print Network (OSTI)

Photonic generation of UWB pulses with pulse position modulation H. Mu and J. Yao A novel photonic approach to generating ultra-wideband (UWB) signals with pulse position modulation (PPM) is proposed delay-line filter for UWB monocycle pulse generation, the second subsystem being a pulse

Yao, Jianping

500

Building Energy Software Tools Directory: SunPosition online  

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

SunPosition online SunPosition online Sunposition online image Easy to use, fast and highly accurate professional sun positioning application with professionally presented printouts for members location results. SunPosition online uses an advanced mathematical algorithm to run calculations which are incredibly accurate, probably the most accurate available, meaning you can be sure to know exactly where to expect the sun, wherever and whenever you need to. Calculations can be made using either true or magnetic north, the application even calculates the magnetic declination for the selected location or location longitude and latitude co-ordinates if manually entered. Ideally suited to be used with Suunto high precision instruments. Screen Shots Keywords sun position, solar angle design, solar azimuth, solar altitude, sun path